CN111381287A - A monitoring circuit of an intelligent management device for safety tools in a substation - Google Patents

Abstract

The invention provides a monitoring circuit for an intelligent management device for safety tools in a substation, comprising a power supply and a plurality of monitoring modules, wherein the plurality of monitoring modules are connected in parallel; the monitoring modules include a storage state monitoring circuit, a removal state monitoring circuit, a Normal working state monitoring circuit, contact melting state monitoring circuit, storage state display circuit, use state display circuit, inspection state display circuit, inspection state switching circuit, first resistor R11, first terminal Z1 and second terminal F1 . The invention provides a monitoring circuit of an intelligent management device for safety tools in a substation, which realizes the monitoring and management of safety tools and improves the management effect. The monitoring circuit adopts the mode of single power supply, the module structure, and the circuit is simple, and several monitoring modules can be connected to the power supply in parallel, and the capacity can be continuously increased to meet the requirements of different quantities of tools.

Description

A monitoring circuit of an intelligent management device for safety tools in a substation

technical field

The invention relates to the technical field of tool management, and more particularly, to a monitoring circuit of an intelligent management device for safety tools in a substation.

Background technique

Safety tools are an important safety guarantee method for the power system. Their role is to prevent accidents such as electric shock, burns, falls, and falls, and to ensure the personal safety of staff. Therefore, the management of safety tools is very important.

There are many safety tools in the substation, and the management work is relatively heavy. At present, there is no ready-made circuit of the safety tool management system, which is managed entirely by humans. However, the manual management effect is low and error-prone, and it is impossible to standardize the management of safety tools.

SUMMARY OF THE INVENTION

In order to overcome the technical defects of low effect and error-prone manual management of safety tools, the invention provides a monitoring circuit of an intelligent management device for safety tools in a substation.

For solving the above-mentioned technical problems, the technical scheme of the present invention is as follows:

A monitoring circuit for an intelligent management device for safety tools in a substation, comprising a power supply and several monitoring modules, the several monitoring modules are connected in parallel; the monitoring modules include a storage state monitoring circuit, a take-away state monitoring circuit, a normal working state Monitoring circuit, contact melting state monitoring circuit, storage state display circuit, use state display circuit, inspection state display circuit, inspection state switching circuit, first resistor R11, first terminal Z1 and second terminal F1;

The storage state monitoring circuit, the removal state monitoring circuit, the normal working state monitoring circuit, and the contact fusion state monitoring circuit are all connected to the positive pole of the power supply through the first terminal Z1; the storage state monitoring circuit is connected to the The storage state display circuit is connected in series, and the removal state monitoring circuit is respectively connected in series with the use state display circuit, the inspection state display circuit and the inspection state switching circuit; the storage state display circuit, the use state display circuit and the The inspection state display circuit is connected in series with the first resistor R11; the first resistor R11, the inspection state switching circuit, the normal working state monitoring circuit and the contact melting state monitoring circuit all pass through the second terminal F1 Connect to the negative pole of the power supply.

In the above scheme, when the storage state monitoring circuit is turned on, the removed state monitoring circuit is disconnected, the storage state display circuit has output, and the removed state monitoring circuit has no output; when the storage state monitoring circuit is disconnected, the state monitoring circuit is removed. It is turned on, and the use state display circuit has output, which realizes the monitoring and management of safety tools and improves the management effect. The monitoring circuit adopts the mode of single power supply, the module structure, and the circuit is simple, and several monitoring modules can be connected to the power supply in parallel, and the capacity can be continuously increased to meet the requirements of different quantities of tools.

Preferably, the storage state monitoring circuit includes a first normally open contact L111 of the first detection contact, a first normally open contact L112 of the second detection contact, and a first normally open contact of the third detection contact L113 and the first normally open contact L114 of the fourth detection contact;

The first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact, and the fourth detection contact The first normally open contacts L114 are all electrically connected to the first terminal Z1; the first normally open contacts L111 of the first detection contacts, the first normally open contacts L112 of the second detection contacts, the The first normally open contact L113 of the three detection contacts and the first normally open contact L114 of the fourth detection contact are connected in series with the storage state display circuit.

In the above solution, each single tool adopts four detection contacts with evenly distributed positions. As long as one of the detection contacts detects that a safety tool is stored in this position, the corresponding first normally open contact is closed, and the storage state monitoring circuit leads. On, the D11 terminal is positively charged, the storage status display circuit has output, and it is judged that there is a safety tool stored in this position. Only when the four detection contacts have not detected the safety tool, all the first normally open contacts If it is disconnected, the D11 terminal is negatively charged, the storage status display circuit has no output, and it is judged that no safety tool is stored in this position.

Preferably, the storage state display circuit includes a third terminal D11, a first relay G1, a second relay M1 and an indicator light LG;

The first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact, and the fourth detection contact The first normally open contacts L114 are all connected in series with the third terminal D11, the third terminal D11 is connected in series with the first normally closed contacts of the first relay G1, and the first normally closed contacts of the first relay G1 are connected in series. The normally closed contact is connected in series with the first normally open contact of the second relay M1, and the first normally open contact of the second relay M1 is connected in series with the indicator light LG; The first resistor R11 is connected in series.

In the above scheme, when the storage state monitoring circuit is turned on, the storage state display circuit has an input, the first normally closed contact of the first relay G1 and the first normally open contact of the second relay M1 are closed, and the indicator light LG is on. , indicating that safety tools are stored in this position, otherwise the indicator light LG will be off;

Preferably, the removal state monitoring circuit includes a first normally closed contact L121 of the first detection contact, a first normally closed contact L122 of the second detection contact, and a first normally closed contact of the third detection contact point L123 and the first normally closed contact L124 of the fourth detection contact;

The first normally closed contact L121 of the first detection contact is connected in series with the first normally closed contact L122 of the second detection contact, and the first normally closed contact L122 of the second detection contact is connected to the first normally closed contact L122 of the second detection contact. The first normally closed contact L123 of the third detection contact is connected in series, and the first normally closed contact L123 of the third detection contact is connected in series with the first normally closed contact L124 of the fourth detection contact connection, the first normally closed contact L124 of the fourth detection contact is connected in series with the first terminal Z1, and the first normally closed contact L121 of the first detection contact is respectively connected with the use status display circuit . The inspection status display circuit and the inspection status switching circuit are connected in series.

In the above scheme, contrary to the storage state monitoring circuit, only four detection contacts cannot detect the safety tool, the first normally open contacts of all the detection contacts are opened, the first normally closed node is closed, and the state monitoring circuit is removed. Only when it is turned on, the D12 terminal is positively charged, otherwise the state monitoring circuit is not turned on, and the D12 terminal is negatively charged.

Preferably, the use state display circuit includes a fourth terminal D12, a first relay G1, a second relay M1, a third relay BZ1 and an indicator light LR;

The first normally closed contact L121 of the first detection contact is connected in series with the fourth terminal D12, the fourth terminal D12 is connected in series with the second normally closed contact of the first relay G1, and the fourth terminal D12 is connected in series with the second normally closed contact of the first relay G1. The second normally closed contact of the first relay G1 is connected in series with the second normally open contact of the second relay M1, and the second normally open contact of the second relay M1 is connected to the normally open contact of the third relay BZ1. The closed contacts are connected in series, and the normally closed contacts of the third relay BZ1 are connected in series with the indicator light LR; the indicator light LR is connected in series with the first resistor R11.

In the above scheme, when the safety tool is taken away, the taken state monitoring circuit is turned on, the use state display circuit has input, the second normally closed contact of the first relay G1 and the second normally open contact of the second relay M1. The normally closed contacts of the point and the third relay BZ1 are closed, and the indicator light LR is on, reminding the staff that the tool is in use. When the tool is put back in this position, the state monitoring circuit is disconnected and the indicator light LR is off.

Preferably, the inspection state switching circuit includes a first relay G1, a button A1, a second relay M1, a third relay BZ1 and a second resistor R12;

The first normally closed contact L121 of the first detection contact is connected in series with the fourth normally closed contact of the first relay G1, and the fourth normally closed contact of the first relay G1 is connected to the button A1 connected in series, the second normally open contact of the third relay BZ1 is connected in parallel with the button A1, the button A1 is connected in series with one end of the control loop of the third relay BZ1, and the control of the third relay BZ1 The other end of the loop is connected in series with the fourth normally open contact of the second relay M1, the fourth normally open contact of the second relay M1 is connected in series with the second resistor R12, and the second resistor R12 connected in series with the second terminal F1.

In the above scheme, when the indicator light LR is on, the staff is reminded to monitor the state of the tool. If it is ready to be sent for inspection and taken away, press the button A1, the second normally open contact of the third relay BZ1 is self-maintaining, and the indicator light LY On, when the tool is put back in place, the indicator light LY is off.

Preferably, the inspection status display circuit includes a first relay G1, a second relay M1, a third relay BZ1 and an indicator light LY;

The first normally closed contact L121 of the first detection contact is connected in series with the third normally closed contact of the first relay G1, and the third normally closed contact of the first relay G1 is connected to the second normally closed contact of the first relay G1. The third normally open contact of the relay M1 is connected in series, the third normally open contact of the second relay M1 is connected in series with the first normally open contact of the third relay BZ1, and the third normally open contact of the third relay BZ1 is connected in series. A normally open contact is connected in series with the indicator light LY, and the indicator light LY is connected in series with the first resistor R11.

In the above scheme, when the tool is removed and ready to be sent for inspection, the removed state monitoring circuit is turned on, the third normally open contact of the second relay M1 and the third normally closed contact of the first relay G1 are closed, and press Press button A1, the third relay BZ1 is electrified to pick up and disconnect the normally closed contact of the third relay BZ1 of the use status display circuit, and the indicator light LR is off; pick up the first normally open of the third relay BZ1 of the inspection status display circuit At the same time, the second normally open contact of the third relay BZ1 of the switching circuit for inspection and inspection status is closed. The third relay BZ1 remains charged, and the indicator light LY is always on, realizing the switching of the state from the use state. It is in the inspection state. When the safety tool is put back to this position, the storage state monitoring circuit is turned on, the indicator light LG is on, the state monitoring circuit is disconnected when the safety tool is taken out, the third relay BZ1 is powered off, the indicator light LY is off, and the system automatically realizes Switch from the inspection state to the storage state.

Preferably, the normal working state monitoring circuit includes a second normally open contact L131 of the first detection contact, a second normally open contact L132 of the second detection contact, and a second normally open contact of the third detection contact Point L133, second normally open contact L134 of the fourth detection contact, second normally closed contact L141 of the first detection contact, second normally closed contact L142 of the second detection contact, third detection contact The second normally closed contact L143 of the fourth detection contact, the second normally closed contact L144 of the fourth detection contact, the fifth terminal D13, the second relay M1 and the third resistor R13;

The first terminal Z1 is connected in series with the second normally open contact L131 of the first detection contact, and the second normally open contact L131 of the first detection contact is connected to the second normally open contact L131 of the second detection contact. Two normally open contacts L132 are connected in series, the second normally open contact L132 of the second detection contact is connected in series with the second normally open contact L133 of the third detection contact, the third detection contact The second normally open contact L133 of the fourth detection contact is connected in series with the second normally open contact L134 of the fourth detection contact, and the second normally open contact L134 of the fourth detection contact is connected in series with the fifth terminal D13 connection, the fifth terminal D13 is connected in series with one end of the control loop of the second relay M1, and the other end of the control loop of the second relay M1 is connected in series with the third resistor R13, the third resistor R13 is connected in series with the second terminal F1, the second normally closed contact L141 of the first detection contact is connected in parallel with the second normally open contact L131 of the first detection contact, and the second detection contact is connected in parallel with the second normally open contact L131 of the first detection contact. The second normally closed contact L142 of the contact is connected in parallel with the second normally open contact L132 of the second detection contact, and the second normally closed contact L143 of the third detection contact is connected to the third detection contact. The second normally open contact L133 of the contacts is connected in parallel, and the second normally closed contact L144 of the fourth detection contact is connected in parallel with the second normally open contact L134 of the fourth detection contact.

In the above scheme, the third normally open contact and the third normally closed electric shock of each detection contact are used in parallel to form a judgment basis, because each detection contact is at least in its normally open or normally closed state. Only when it is turned on, the terminal D13 is positively charged, the second relay M1 is electrified, and its normally open contacts are pulled in, so that the display state can be turned on, and each indicator light can light up to display the state. If the monitoring circuit is disconnected , the circuit is short-circuited, then the second relay M1 is not charged, its normally open contacts are disconnected, each status display circuit and switching circuit are disconnected, all indicator lights of the monitoring circuit are off, indicating that the monitoring circuit is faulty and needs to be repaired , but does not affect the work of other monitoring circuits;

Preferably, the contact fusion state monitoring circuit includes a third normally open contact L151 of the first detection contact, a third normally open contact L152 of the second detection contact, and a third normally open contact of the third detection contact The open contact L153, the third normally open contact L154 of the fourth detection contact, the third normally closed contact L161 of the first detection contact, the third normally closed contact L162 of the second detection contact, the third detection contact The third normally closed contact L163 of the contact, the third normally closed contact L164 of the fourth detection contact, the sixth terminal D14, the first relay G1 and the fourth resistor R14; the first terminal Z1 and the The third normally open contact L151 of the first detection contact, the third normally open contact L152 of the second detection contact, the third normally open contact L153 of the third detection contact, and the third normally open contact of the fourth detection contact The normally open contacts L154 are connected in series, the third normally open contacts L151 of the first detection contacts are connected in series with the third normally closed contacts L161 of the first detection contacts, and the second detection contacts are connected in series. The third normally open contact L152 is connected in series with the third normally closed contact L162 of the second detection contact, and the third normally open contact L153 of the third detection contact is connected to the third normally open contact L153 of the third detection contact. The third normally closed contact L163 is connected in series, the third normally open contact L154 of the fourth detection contact is connected in series with the third normally closed contact L164 of the fourth detection contact, the first detection contact The third normally closed contact L161 of the second detection contact, the third normally closed contact L162 of the second detection contact, the third normally closed contact L163 of the third detection contact and the third normally closed contact of the fourth detection contact L164 is respectively connected in series with the sixth terminal D14, the sixth terminal D14 is connected in series with one end of the control loop of the first relay G1, and the other end of the control loop of the first relay G1 is connected with the fourth The resistor R14 is connected in series, and the fourth resistor R14 is connected in series with the second terminal F1.

In the above scheme, the fourth normally open contact and the fourth normally closed contact of each detection contact are connected in series and then connected in parallel to form the judgment basis, because each detection contact works at most when it is normally open or normally closed. Only when the circuit is open can the first relay G1 be de-energized, its normally closed contacts can be closed normally, the display state circuit can be turned on, and each indicator light can be lit to display the state. If the monitoring circuit is energized for a long time, the contacts melt , the circuit is always on, when the other contact is also closed when the state changes, or the circuit is short-circuited, the first relay G1 is charged, and all its normally closed contacts are disconnected, and each state display circuit and switching circuit are disconnected. All indicator lights of the monitoring circuit are off, which means that the monitoring circuit is faulty and needs to be repaired, but it does not affect the work of other monitoring circuits.

Preferably, the detection contacts are gravity detection contacts.

In the above scheme, the monitoring circuit adopts gravity detection, the technology is simple, the maintenance is convenient, and the production cost is reduced.

Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

The invention provides a monitoring circuit of an intelligent management device for safety tools in a substation. When the storage state monitoring circuit is turned on, the removed state monitoring circuit is disconnected, the storage state display circuit has output, and the removed state monitoring circuit has no output; When the storage state monitoring circuit is disconnected, the removed state monitoring circuit is turned on, and the use state display circuit has an output, which realizes the monitoring and management of safety tools and improves the management effect. The monitoring circuit adopts the mode of single power supply, the module structure, and the circuit is simple, and several monitoring modules can be connected to the power supply in parallel, and the capacity can be continuously increased to meet the requirements of different quantities of tools.

Description of drawings

Fig. 1 is a circuit schematic diagram of a single monitoring module of the present invention being connected to a power supply;

FIG. 2 is a schematic diagram of a circuit module of a single monitoring module of the present invention.

Detailed ways

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent;

In order to better illustrate this embodiment, some parts of the drawings are omitted, enlarged or reduced, which do not represent the size of the actual product;

It will be understood by those skilled in the art that some well-known structures and their descriptions may be omitted from the drawings.

The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

As shown in Figure 1-2, a monitoring circuit of an intelligent management device for safety tools in a substation includes a power supply and several monitoring modules, and the several monitoring modules are connected in parallel; the monitoring modules include a storage state monitoring circuit, a Running state monitoring circuit, normal working state monitoring circuit, contact melting state monitoring circuit, storage state display circuit, use state display circuit, inspection state display circuit, inspection state switching circuit, first resistor R11, first terminal Z1 and the second terminal F1;

The storage state monitoring circuit, the removal state monitoring circuit, the normal working state monitoring circuit, and the contact fusion state monitoring circuit are all connected to the positive pole of the power supply through the first terminal Z1; the storage state monitoring circuit is connected to the The storage state display circuit is connected in series, and the removal state monitoring circuit is respectively connected in series with the use state display circuit, the inspection state display circuit and the inspection state switching circuit; the storage state display circuit, the use state display circuit and the The inspection state display circuit is connected in series with the first resistor R11; the first resistor R11, the inspection state switching circuit, the normal working state monitoring circuit and the contact melting state monitoring circuit all pass through the second terminal F1 Connect to the negative pole of the power supply.

In the implementation process, when the storage state monitoring circuit is turned on, the removal state monitoring circuit is disconnected, the storage state display circuit has output, and the removal state monitoring circuit has no output; when the storage state monitoring circuit is disconnected, the state monitoring circuit is removed. The circuit is turned on, and the use state shows that the circuit has output, which realizes the monitoring and management of safety tools and improves the management effect. The monitoring circuit adopts the mode of single power supply, the module structure, and the circuit is simple, and several monitoring modules can be connected to the power supply in parallel, and the capacity can be continuously increased to meet the requirements of different quantities of tools.

More specifically, the storage state monitoring circuit includes a first normally open contact L111 of the first detection contact, a first normally open contact L112 of the second detection contact, and a first normally open contact of the third detection contact. point L113 and the first normally open contact L114 of the fourth detection contact;

The first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact, and the fourth detection contact The first normally open contacts L114 are all electrically connected to the first terminal Z1; the first normally open contacts L111 of the first detection contacts, the first normally open contacts L112 of the second detection contacts, the The first normally open contact L113 of the three detection contacts and the first normally open contact L114 of the fourth detection contact are connected in series with the storage state display circuit.

In the implementation process, each single tool adopts four detection contacts with evenly distributed positions. As long as one of the detection contacts detects that a safety tool is stored in this position, the corresponding first normally open contact is closed, and the storage state monitoring circuit On, the D11 terminal is positively charged, the storage status display circuit has output, and it is judged that a safety tool is stored in this position. Only when the four detection contacts have not detected a safety tool, all the first normally open contacts The point is disconnected, the D11 terminal is negatively charged, and the storage status display circuit has no output, and it is judged that no safety tool is stored in this position.

More specifically, the storage state display circuit includes a third terminal D11, a first relay G1, a second relay M1 and an indicator light LG;

The first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact, and the fourth detection contact The first normally open contacts L114 are all connected in series with the third terminal D11, the third terminal D11 is connected in series with the first normally closed contacts of the first relay G1, and the first normally closed contacts of the first relay G1 are connected in series. The normally closed contact is connected in series with the first normally open contact of the second relay M1, and the first normally open contact of the second relay M1 is connected in series with the indicator light LG; The first resistor R11 is connected in series.

In the implementation process, when the storage state monitoring circuit is turned on, the storage state display circuit has input, the first normally closed contact of the first relay G1 and the first normally open contact of the second relay M1 are closed, and the indicator light LG On, it means that safety tools are stored in this position, otherwise the indicator light LG is off;

More specifically, the removal state monitoring circuit includes a first normally closed contact L121 of the first detection contact, a first normally closed contact L122 of the second detection contact, and a first normally closed contact of the third detection contact. Contact L123 and the first normally closed contact L124 of the fourth detection contact;

The first normally closed contact L121 of the first detection contact is connected in series with the first normally closed contact L122 of the second detection contact, and the first normally closed contact L122 of the second detection contact is connected to the first normally closed contact L122 of the second detection contact. The first normally closed contact L123 of the third detection contact is connected in series, and the first normally closed contact L123 of the third detection contact is connected in series with the first normally closed contact L124 of the fourth detection contact connection, the first normally closed contact L124 of the fourth detection contact is connected in series with the first terminal Z1, and the first normally closed contact L121 of the first detection contact is respectively connected with the use status display circuit . The inspection status display circuit and the inspection status switching circuit are connected in series.

In the implementation process, contrary to the storage state monitoring circuit, only four detection contacts cannot detect the safety tool, the first normally open contact of all detection contacts is opened, the first normally closed node is closed, and the state monitoring device is removed. The circuit is turned on, the D12 terminal is positively charged, otherwise the state monitoring circuit is not turned on, and the D12 terminal is negatively charged.

More specifically, the use state display circuit includes a fourth terminal D12, a first relay G1, a second relay M1, a third relay BZ1 and an indicator light LR;

The first normally closed contact L121 of the first detection contact is connected in series with the fourth terminal D12, the fourth terminal D12 is connected in series with the second normally closed contact of the first relay G1, and the fourth terminal D12 is connected in series with the second normally closed contact of the first relay G1. The second normally closed contact of the first relay G1 is connected in series with the second normally open contact of the second relay M1, and the second normally open contact of the second relay M1 is connected to the normally open contact of the third relay BZ1. The closed contacts are connected in series, and the normally closed contacts of the third relay BZ1 are connected in series with the indicator light LR; the indicator light LR is connected in series with the first resistor R11.

In the implementation process, when the safety tool is taken away, the taken-out status monitoring circuit is turned on, the use status display circuit has input, the second normally closed contact of the first relay G1, the second normally open contact of the second relay M1 The contact and the normally closed contact of the third relay BZ1 are closed, and the indicator light LR is on, reminding the staff that the tool is in use. When the tool is put back in this position, the state monitoring circuit is disconnected and the indicator light LR is off. .

More specifically, the inspection state switching circuit includes a first relay G1, a button A1, a second relay M1, a third relay BZ1 and a second resistor R12;

The first normally closed contact L121 of the first detection contact is connected in series with the fourth normally closed contact of the first relay G1, and the fourth normally closed contact of the first relay G1 is connected to the button A1 connected in series, the second normally open contact of the third relay BZ1 is connected in parallel with the button A1, the button A1 is connected in series with one end of the control loop of the third relay BZ1, and the control of the third relay BZ1 The other end of the loop is connected in series with the fourth normally open contact of the second relay M1, the fourth normally open contact of the second relay M1 is connected in series with the second resistor R12, and the second resistor R12 connected in series with the second terminal F1.

In the implementation process, when the indicator light LR is on, the staff is reminded to monitor the status of the tool. If it is ready to be sent for inspection and taken away, press the button A1, the second normally open contact of the third relay BZ1 is self-maintaining, and the indicator light LY is on, when the tool is put back in place, the indicator light LY is off.

More specifically, the inspection status display circuit includes a first relay G1, a second relay M1, a third relay BZ1 and an indicator light LY;

The first normally closed contact L121 of the first detection contact is connected in series with the third normally closed contact of the first relay G1, and the third normally closed contact of the first relay G1 is connected to the second normally closed contact of the first relay G1. The third normally open contact of the relay M1 is connected in series, the third normally open contact of the second relay M1 is connected in series with the first normally open contact of the third relay BZ1, and the third normally open contact of the third relay BZ1 is connected in series. A normally open contact is connected in series with the indicator light LY, and the indicator light LY is connected in series with the first resistor R11.

In the implementation process, when the tool is removed and ready to be sent for inspection, the removed state monitoring circuit is turned on, and the third normally open contact of the second relay M1 and the third normally closed contact of the first relay G1 are closed. Press the button A1, the third relay BZ1 is charged, and the normally closed contact of the third relay BZ1 of the use status display circuit is disconnected, and the indicator light LR goes out; When the contact is opened, the indicator light LY goes out, and at the same time, the second normally open contact of the third relay BZ1 of the switching circuit for the inspection state is pulled and closed. Switch to the inspection state, when the safety tool is put back to this position, the storage state monitoring circuit is turned on, the indicator light LG is on, the state monitoring circuit is disconnected when it is removed, the third relay BZ1 is powered off, the indicator light LY is off, and the system automatically Realize the switch from the inspection state to the storage state.

More specifically, the normal working state monitoring circuit includes a second normally open contact L131 of the first detection contact, a second normally open contact L132 of the second detection contact, and a second normally open contact of the third detection contact. The contact L133, the second normally open contact L134 of the fourth detection contact, the second normally closed contact L141 of the first detection contact, the second normally closed contact L142 of the second detection contact, the third detection contact The second normally closed contact L143 of the point, the second normally closed contact L144 of the fourth detection contact, the fifth terminal D13, the second relay M1 and the third resistor R13;

The first terminal Z1 is connected in series with the second normally open contact L131 of the first detection contact, and the second normally open contact L131 of the first detection contact is connected to the second normally open contact L131 of the second detection contact. Two normally open contacts L132 are connected in series, the second normally open contact L132 of the second detection contact is connected in series with the second normally open contact L133 of the third detection contact, the third detection contact The second normally open contact L133 of the fourth detection contact is connected in series with the second normally open contact L134 of the fourth detection contact, and the second normally open contact L134 of the fourth detection contact is connected in series with the fifth terminal D13 connection, the fifth terminal D13 is connected in series with one end of the control loop of the second relay M1, and the other end of the control loop of the second relay M1 is connected in series with the third resistor R13, the third resistor R13 is connected in series with the second terminal F1, the second normally closed contact L141 of the first detection contact is connected in parallel with the second normally open contact L131 of the first detection contact, and the second detection contact is connected in parallel with the second normally open contact L131 of the first detection contact. The second normally closed contact L142 of the contact is connected in parallel with the second normally open contact L132 of the second detection contact, and the second normally closed contact L143 of the third detection contact is connected to the third detection contact. The second normally open contact L133 of the contacts is connected in parallel, and the second normally closed contact L144 of the fourth detection contact is connected in parallel with the second normally open contact L134 of the fourth detection contact.

In the implementation process, the third normally open contact and the third normally closed electric shock of each detection contact are connected in parallel to form the judgment basis, because each detection contact is at least in one of its normally open or normally closed states. The circuit is turned on, the terminal D13 is positively charged, the second relay M1 is charged and actuated, and its normally open contacts are pulled in, so that the display state can be turned on, and each indicator light can light up to display the state. If the monitoring circuit is broken If the wire or the circuit is short-circuited, the second relay M1 is not charged, its normally open contacts are disconnected, the status display circuits and switching circuits are disconnected, and all indicator lights of the monitoring circuit are off, indicating that the monitoring circuit is faulty and needs to be overhaul, but does not affect the work of other monitoring circuits;

More specifically, the contact fusion state monitoring circuit includes a third normally open contact L151 of the first detection contact, a third normally open contact L152 of the second detection contact, and a third normally open contact of the third detection contact. Normally open contact L153, third normally open contact L154 of the fourth detection contact, third normally closed contact L161 of the first detection contact, third normally closed contact L162 of the second detection contact, third normally closed contact L162 of the second detection contact The third normally closed contact L163 of the detection contact, the third normally closed contact L164 of the fourth detection contact, the sixth terminal D14, the first relay G1 and the fourth resistor R14; the first terminal Z1 is respectively connected to the The third normally open contact L151 of the first detection contact, the third normally open contact L152 of the second detection contact, the third normally open contact L153 of the third detection contact, and the third normally open contact of the fourth detection contact The three normally open contacts L154 are connected in series, the third normally open contact L151 of the first detection contact is connected in series with the third normally closed contact L161 of the first detection contact, and the second detection contact The third normally open contact L152 of the second detection contact is connected in series with the third normally closed contact L162 of the second detection contact, and the third normally open contact L153 of the third detection contact is connected to the third detection contact The third normally closed contact L163 of the fourth detection contact is connected in series, the third normally open contact L154 of the fourth detection contact is connected in series with the third normally closed contact L164 of the fourth detection contact, the first detection contact The third normally closed contact L161 of the contact, the third normally closed contact L162 of the second detection contact, the third normally closed contact L163 of the third detection contact, and the third normally closed contact of the fourth detection contact The point L164 is respectively connected in series with the sixth terminal D14, the sixth terminal D14 is connected in series with one end of the control loop of the first relay G1, and the other end of the control loop of the first relay G1 is connected in series with the first relay G1. Four resistors R14 are connected in series, and the fourth resistor R14 is connected in series with the second terminal F1.

In the implementation process, the fourth normally open contact and the fourth normally closed contact of each detection contact are used in series and then connected in parallel to form the judgment basis, because each detection contact can work in its normally open or normally closed state at most When the circuit is open, the first relay G1 can be de-energized, its normally closed contacts can be closed normally, the display status circuit can be turned on, and each indicator light can light up to display the status. If the monitoring circuit is charged for a long time, the contacts melt. chain, the circuit is always on, when the other contact is also closed when the state changes, or the circuit is short-circuited, the first relay G1 is charged, disconnecting all its normally closed contacts, disconnecting each state display circuit and switching circuit, All indicator lights of the monitoring circuit are off, which means that the monitoring circuit is faulty and needs to be repaired, but it does not affect the work of other monitoring circuits.

More specifically, the detection contacts are gravity detection contacts.

In the implementation process, the monitoring circuit adopts gravity detection, the technology is simple, the maintenance is convenient, and the production cost is reduced.

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (10)

1. A monitoring circuit of an intelligent management device for safety tools and instruments in a transformer substation comprises a power supply and a plurality of monitoring modules, and is characterized in that the monitoring modules are connected in parallel; the monitoring module comprises a storage state monitoring circuit, a take-away state monitoring circuit, a normal working state monitoring circuit, a contact fuse state monitoring circuit, a storage state display circuit, a use state display circuit, a delivery state switching circuit, a first resistor R11, a first terminal Z1 and a second terminal F1;

the storage state monitoring circuit, the taking-away state monitoring circuit, the normal working state monitoring circuit and the contact fuse state monitoring circuit are all connected with the positive electrode of the power supply through the first terminal Z1; the storage state monitoring circuit is connected with the storage state display circuit in series, and the taking-away state monitoring circuit is connected with the use state display circuit, the delivery state display circuit and the delivery state switching circuit in series respectively; the storage state display circuit, the use state display circuit and the inspection state display circuit are all connected with the first resistor R11 in series; the first resistor R11, the inspection state switching circuit, the normal working state monitoring circuit and the contact fusing state monitoring circuit are all connected with the negative electrode of the power supply through the second terminal F1.

2. The monitoring circuit of the intelligent management device for the safety tools and equipment in the transformer substation according to claim 1,

the storage state monitoring circuit comprises a first normally open contact L111 of a first detection contact, a first normally open contact L112 of a second detection contact, a first normally open contact L113 of a third detection contact and a first normally open contact L114 of a fourth detection contact;

the first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact and the first normally open contact L114 of the fourth detection contact are electrically connected with the first terminal Z1; and the first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact and the first normally open contact L114 of the fourth detection contact are all connected with the storage state display circuit in series.

3. The monitoring circuit of the intelligent management device for the safety tools and equipment in the transformer substation according to claim 2,

the storage state display circuit comprises a third terminal D11, a first relay G1, a second relay M1 and an indicator light LG;

the first normally open contact L111 of the first detection contact, the first normally open contact L112 of the second detection contact, the first normally open contact L113 of the third detection contact and the first normally open contact L114 of the fourth detection contact are all connected with the third terminal D11 in series, the third terminal D11 is connected with the first normally closed contact of the first relay G1 in series, the first normally closed contact of the first relay G1 is connected with the first normally open contact of the second relay M1 in series, and the first normally open contact of the second relay M1 is connected with the indicator light LG in series; the indicator light LG is connected in series with the first resistor R11.

4. The monitoring circuit of the intelligent management device for the safety tools and equipment in the transformer substation according to claim 3,

the taking-away state monitoring circuit comprises a first normally closed contact L121 of a first detection contact, a first normally closed contact L122 of a second detection contact, a first normally closed contact L123 of a third detection contact and a first normally closed contact L124 of a fourth detection contact;

the first normally closed contact L121 of the first detection contact is connected with the first normally closed contact L122 of the second detection contact in series, the first normally closed contact L122 of the second detection contact is connected with the first normally closed contact L123 of the third detection contact in series, the first normally closed contact L123 of the third detection contact is connected with the first normally closed contact L124 of the fourth detection contact in series, the first normally closed contact L124 of the fourth detection contact is connected with the first terminal Z1 in series, and the first normally closed contact L121 of the first detection contact is connected with the use state display circuit, the submission state display circuit and the submission state switching circuit in series respectively.

5. The monitoring circuit of the intelligent management device for the safety tools and equipment in the transformer substation according to claim 4,

the use state display circuit comprises a fourth terminal D12, a first relay G1, a second relay M1, a third relay BZ1 and an indicator light LR;

the first normally closed contact L121 of the first detection contact is connected in series with the fourth terminal D12, the fourth terminal D12 is connected in series with the second normally closed contact of the first relay G1, the second normally closed contact of the first relay G1 is connected in series with the second normally open contact of the second relay M1, the second normally open contact of the second relay M1 is connected in series with the normally closed contact of the third relay BZ1, and the normally closed contact of the third relay BZ1 is connected in series with the indicator light LR; the indicator light LR is connected in series with the first resistor R11.

6. The monitoring circuit for the intelligent management device of the safety tools in the substation according to claim 5, wherein the inspection state switching circuit comprises a first relay G1, a button A1, a second relay M1, a third relay BZ1 and a second resistor R12;

the first normally closed contact L121 of the first detection contact is connected with the fourth normally closed contact of the first relay G1 in series, the fourth normally closed contact of the first relay G1 is connected with the button A1 in series, the second normally open contact of the third relay BZ1 is connected with the button A1 in parallel, the button A1 is connected with one end of the control loop of the third relay BZ1 in series, the other end of the control loop of the third relay BZ1 is connected with the fourth normally open contact of the second relay M1 in series, the fourth normally open contact of the second relay M1 is connected with the second resistor R12 in series, and the second resistor R12 is connected with the second terminal F1 in series.

7. The monitoring circuit of the intelligent management device for the safety tools and equipment in the substation according to claim 6, wherein the inspection state display circuit comprises a first relay G1, a second relay M1, a third relay BZ1 and an indicator light LY;

the first normally closed contact L121 of the first detection contact is connected with the third normally closed contact of the first relay G1 in series, the third normally closed contact of the first relay G1 is connected with the third normally open contact of the second relay M1 in series, the third normally open contact of the second relay M1 is connected with the first normally open contact of the third relay BZ1 in series, the first normally open contact of the third relay BZ1 is connected with the indicator light LY in series, and the indicator light LY is connected with the first resistor R11 in series.

8. The monitoring circuit for the intelligent management device of the safety tools in the substation according to claim 7, wherein the monitoring circuit for the normal working state comprises a second normally open contact L131 of the first detection contact, a second normally open contact L132 of the second detection contact, a second normally open contact L133 of the third detection contact, a second normally open contact L134 of the fourth detection contact, a second normally closed contact L141 of the first detection contact, a second normally closed contact L142 of the second detection contact, a second normally closed contact L143 of the third detection contact, a second normally closed contact L144 of the fourth detection contact, a fifth terminal D13, a second relay M1 and a third resistor R13;

the first terminal Z1 is connected in series with the second normally open contact L131 of the first detection contact, the second normally open contact L131 of the first detection contact is connected in series with the second normally open contact L132 of the second detection contact, the second normally open contact L132 of the second detection contact is connected in series with the second normally open contact L133 of the third detection contact, the second normally open contact L133 of the third detection contact is connected in series with the second normally open contact L134 of the fourth detection contact, the second normally open contact L134 of the fourth detection contact is connected in series with the fifth terminal D13, the fifth terminal D13 is connected in series with one end of the control loop of the second relay M1, the other end of the control loop of the second relay M1 is connected in series with the third resistor R13, the third resistor R13 is connected in series with the fifth terminal F1, the second normally open contact L141 of the first detection contact is connected in parallel with the second normally open contact L131 of the first detection contact, the second normally closed contact L142 of the second detection contact is connected in parallel with the second normally open contact L132 of the second detection contact, the second normally closed contact L143 of the third detection contact is connected in parallel with the second normally open contact L133 of the third detection contact, and the second normally closed contact L144 of the fourth detection contact is connected in parallel with the second normally open contact L134 of the fourth detection contact.

9. The monitoring circuit for the intelligent management device of the safety tools in the substation according to claim 8, wherein the contact fusing state monitoring circuit comprises a third normally open contact L151 of the first detection contact, a third normally open contact L152 of the second detection contact, a third normally open contact L153 of the third detection contact, a third normally open contact L154 of the fourth detection contact, a third normally closed contact L161 of the first detection contact, a third normally closed contact L162 of the second detection contact, a third normally closed contact L163 of the third detection contact, a third normally closed contact L164 of the fourth detection contact, a sixth terminal D14, a first relay G1 and a fourth resistor R14; the first terminal Z1 is connected in series with a third normally open contact L151 of the first detection contact, a third normally open contact L152 of the second detection contact, a third normally open contact L153 of the third detection contact and a third normally open contact L154 of the fourth detection contact, respectively, the third normally open contact L151 of the first detection contact is connected in series with a third normally closed contact L161 of the first detection contact, the third normally open contact L152 of the second detection contact is connected in series with a third normally closed contact L162 of the second detection contact, the third normally open contact L153 of the third detection contact is connected in series with a third normally closed contact L163 of the third detection contact, the third normally open contact L154 of the fourth detection contact is connected in series with a third normally closed contact L164 of the fourth detection contact, and the third normally closed contact L161 of the first detection contact, the third normally closed contact L162 of the second detection contact, and the third normally closed contact L163 of the fourth detection contact, A third normally closed contact L163 of the third detection contact and a third normally closed contact L164 of the fourth detection contact are connected in series to the sixth terminal D14, respectively, the sixth terminal D14 is connected in series to one end of a control circuit of the first relay G1, the other end of the control circuit of the first relay G1 is connected in series to the fourth resistor R14, and the fourth resistor R14 is connected in series to the second terminal F1.

10. The monitoring circuit for the intelligent management device of the safety tools in the transformer substation according to any one of claims 1 to 9, wherein the detection contact is a gravity detection contact.

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