CN105118203A - Triggering structure for smart home safety and protection device - Google Patents

Abstract

A trigger structure of a smart home security device, relating to the security field, comprising a trigger box, a rectangular cavity is arranged on the trigger box, a switch seat is arranged in the rectangular cavity, a slope is arranged on one end of the switch seat, and a slope is arranged on the other end The hole and the inclined surface cooperate with the key through hole arranged in the cavity, and the side wall of the inner wall of the rectangular cavity is also provided with a spring positioning rod matched with the hole. The spring positioning rod is inserted into the hole, and a spring is installed on the spring positioning rod. Electrode contacts are symmetrically arranged on both sides of the inner wall of the cavity, and a conductive contact rod that runs through the switch seat is provided on the switch seat. The conductive contact rod is used to connect the symmetrically arranged electrode contacts. A positioning guide ridge cooperating with the positioning guide groove is arranged on the contact surface with the bottom surface of the rectangular cavity.

Description

A trigger structure of a smart home security device

technical field

The invention relates to the field of security technology, and provides an anti-theft alarm door device matched with the existing smart home system.

Background technique

With the development of society and the progress of science and technology, people's material and cultural living standards have been greatly improved. Compared with the past, people's security awareness has been greatly improved in advanced science and technology. A safe and reliable living environment is now people Therefore, the existing access control devices have been developed in various aspects. The existing home access control devices use more complicated lock cylinders to increase the difficulty of unlocking for thieves, or use cameras to actually monitor the situation outside the door. It can be discovered by the residents when there is a change, but this kind of monitoring equipment needs someone to monitor it in real time. When the residents go out, the monitoring cannot be completed, and there are also potential safety hazards when the residents go out. The prior art also has a vibration alarm device, and when someone tries to pry open the door, the monitoring circuit works and sends an alarm sound to drive away the thief. However, this kind of vibration alarm device will only issue an alarm when the thief needs to make a large movement. For a thief with superb unlocking skills, such a device is useless in front of him, and if the induction intensity of the vibration device is increased, Then as long as there is a little vibration around, the alarm device will alarm, so there is a problem that the probability of false alarms increases.

For this reason, it is necessary to provide an access control device that prevents thieves with superb unlocking skills, especially a security access control device that can also play an alarm role when the resident goes out.

Contents of the invention

The object of the present invention is to provide a trigger structure of a security access control device capable of alarming abnormal unlocking. The contact can be activated when the door is opened. The abnormal unlocking means that a locksmith uses other means to open the door lock.

In order to achieve the above object, the present invention adopts the following technical solutions:

A trigger structure of a smart home security device, which includes a trigger box 3, a rectangular cavity 3-6 is arranged on the trigger box 3, a switch seat 3-2 is arranged in the rectangular cavity 3-6, and one end of the switch seat 3-2 Be provided with inclined-plane 3-8 on the top, be provided with hole 3-3 on the other end, beveled-surface 3-8 cooperates with the key through hole 3-7 that is arranged in the cavity, also on the side wall of rectangular cavity 3-6) inner wall A spring positioning rod 3-4 cooperating with the hole 3-3 is provided, the spring positioning rod 3-4 is inserted into the hole 3-3, a spring is installed on the spring positioning rod 3-4, and both sides of the inner wall of the rectangular cavity 3-6) The electrode contacts 3-6-2 are symmetrically arranged, and the switch base 3-2 is provided with a conductive contact rod 3-2-1 that runs through the switch base 3-2, and the conductive contact rod 3-2-1 is used to connect the symmetrically arranged The electrode contact 3-6-2, the bottom surface of the rectangular cavity 3-6 is provided with a positioning guide groove 3-6-1, the contact surface between the switch base 3-2 and the bottom surface of the rectangular cavity 3-6 is provided with a positioning guide groove The 3-6-1 fits the positioning guide ridges 3-2-2.

In the above technical solution, the alarm trigger structure also includes a rear cover 3-10, the rear cover 3-10 is provided with a rear cover key through hole 3-11 corresponding to the lock cylinder, and the rear cover is also provided with a mounting hole 3 -9.

In the above technical solution, the alarm triggering structure further includes a rear cover mounting cavity 3-5.

In the above technical solution, a wire lead-out hole 3-5-1 for leading out the electrode contact 3-6-2 is provided in the rear cover installation cavity 3-5.

In the above technical scheme, the alarm circuit includes a 555 timer alarm circuit, the power switch of the 555 timer alarm circuit is turned on or off through the alarm trigger structure, and the 555 timer alarm circuit is connected with a power supply self-locking circuit, when the 555 timer alarm circuit When the alarm works, the self-locking circuit connects the power supply for the 555 timer alarm circuit.

Because the application adopts the above-mentioned technical solution, it has the following beneficial effects:

The structure of the present application can provide a position switch for the alarm device. When someone unlocks the lock, the contacts in the structure touch, which is equivalent to the conduction of the switch.

The rod-type contact method can effectively solve the wiring problem, so that there is no need to lead out the electrodes on the switch base 3-2, which increases the practicability of the product, and the guide ridge can ensure the stability of the switch base.

Description of drawings

Fig. 1 is a state diagram of the present invention in cooperation with a door handle;

Fig. 2 is a structural representation of the present invention, and among the figure A is the part that needs local enlargement;

Fig. 3 is a partially enlarged view of part A in Fig. 2;

Figures 4 and 5 are cross-sectional views of Figure 3;

Figure 6 is a structural diagram of the switch base;

Figure 7 is a structural diagram of the rear cover;

Fig. 8 is an alarm circuit diagram, in which 1 is the handle and 2 is the base.

Detailed ways:

Below in conjunction with accompanying drawing, the present invention will be further described:

Example 1

A trigger structure of a smart home security device, which includes a trigger box 3, a rectangular cavity 3-6 is arranged on the trigger box 3, a switch seat 3-2 is arranged in the rectangular cavity 3-6, and one end of the switch seat 3-2 Be provided with inclined-plane 3-8 on the top, be provided with hole 3-3 on the other end, beveled-surface 3-8 cooperates with the key through hole 3-7 that is arranged in the cavity, also on the side wall of rectangular cavity 3-6) inner wall A spring positioning rod 3-4 cooperating with the hole 3-3 is provided, the spring positioning rod 3-4 is inserted into the hole 3-3, a spring is installed on the spring positioning rod 3-4, and both sides of the inner wall of the rectangular cavity 3-6) The electrode contacts 3-6-2 are symmetrically arranged, and the switch base 3-2 is provided with a conductive contact rod 3-2-1 that runs through the switch base 3-2, and the conductive contact rod 3-2-1 is used to connect the symmetrically arranged The electrode contact 3-6-2, the bottom surface of the rectangular cavity 3-6 is provided with a positioning guide groove 3-6-1, the contact surface between the switch base 3-2 and the bottom surface of the rectangular cavity 3-6 is provided with a positioning guide groove The 3-6-1 fits the positioning guide ridges 3-2-2.

Example 2

On the basis of Embodiment 1, further, the alarm trigger structure also includes a back cover 3-10, the back cover 3-10 is provided with a back cover key through hole 3-11 corresponding to the lock cylinder, and the back cover 3-10 Mounting holes 3-9 are also provided on the top.

Example 3

On the basis of the above-mentioned embodiments, a wire lead-out hole 3-5-1 for leading out the electrode contacts 3-6-2 is provided in the rear cover mounting cavity 3-5. The electrode contacts are embedded on both sides of the inner wall of the rectangular cavity 3-6, and the wires are connected to the motor contacts through the wire lead-out hole 3-5-1, so that the electrodes can be easily led out, avoiding the space occupied by other lead wires.

Example 4

On the basis of Embodiment 1-3, the alarm circuit includes a 555 timer alarm circuit, the power switch of the 555 timer alarm circuit is turned on or off through the alarm trigger structure, and the 555 timer alarm circuit is connected with a power self-locking circuit. When the 555 timer alarm circuit reports to the police, the self-locking circuit connects the power supply for the 555 timer alarm circuit. This application is not limited to the 555 timing alarm circuit for alarming, and other alarm circuits such as based on single-chip microcomputers or DSP, CPLD processors can also be used. The main purpose of this application is to set a touch on the door lock, which combines the alarm circuit to achieve the purpose of anti-theft .

The 555 timer is a medium-scale integrated device that combines analog circuits and digital circuits. It has excellent performance and a wide range of applications. A small amount of resistance-capacitance components can be connected externally to form a monostable trigger and multivibrator. It can also form a Schmitt trigger without external components. It is often used as a timer and is widely used in instrumentation, household appliances, electronic measurement and automatic control. The interior of the 555 timer includes two voltage comparators, three equivalent series resistors, an RS flip-flop, a discharge tube T and a power output stage. It provides two reference voltages VCC/3 and 2VCC/3. Therefore, the integrated 555 timing is widely used in the generation and transformation of pulse waveforms, measurement and control, etc.

To alarm, there must be a trigger signal, which can be triggered by the opening or closing of the switch. A 555 time base circuit can be used to form a monostable trigger. Use the No. 2 pin of the 555 chip as the input terminal of the trigger signal, and connect it into a monostable trigger. When the switch is closed, V11<2/3Vcc, V12<1/3Vcc, the output is high level, after the NAND The multivibrator circuit behind the gate stops working; when the switch is turned off, through the RC charging path, V11>2/3Vcc, V12>1/3Vcc, the output is low, and the multivibrator circuit behind the NAND gate works. The delay time depends on the size of the external resistance and capacitance, that is, the R and C of the charging path. The signal is transmitted to the speaker through the power amplifier composed of LM386 to make the speaker sound.

Theoretically, it takes no more than 10 seconds for people to use the key of the door lock to open the door normally, but it takes more than 10 seconds to open the door in abnormal ways, such as other special tools for locksmiths. Therefore, by adjusting the alarm circuit The value of resistor R1, resistor R and capacitor C can set the time. When someone unlocks the lock, when the unlocking tool is inserted into the slope of the switch seat, the switch seat is touched, and the switch seat slides so that the electrode and the contact are closed, and the electrode is in contact with the contact. Corresponding to the switch K of the alarm circuit, when the contact closure time between the electrode and the contact exceeds the preset threshold, the triode Q1 is turned on, the relay KM is powered, and the normally open and closed contact of KM is closed, the circuit forms a self-locking, and the alarm circuit even if the electrode is closed Continue to alarm after the contact is disconnected.

Claims (4)

1. the trigger architecture of a smart home security device, it is characterized in that, comprise and trigger box (3), trigger on box (3) and be provided with rectangular enclosure (3-6), switch base (3-2) is provided with in rectangular enclosure (3-6), switch base (3-2) one end is provided with inclined-plane (3-8), the other end is arranged porose (3-3), inclined-plane (3-8) coordinates with the key through hole (3-7) be arranged in cavity, the sidewall of rectangular enclosure (3-6) inwall is also provided with the spring backstay (3-4) coordinated with hole (3-3), in spring backstay (3-4) patchhole (3-3), spring backstay (3-4) is provided with spring, rectangular enclosure (3-6) inwall symmetria bilateralis is provided with electrode contacts (3-6-2), switch base (3-2) is provided with the conductive contact bar (3-2-1) of penetrating switch seat (3-2), the electrode contacts (3-6-2) that conductive contact bar (3-2-1) is arranged for connected symmetrical dendrimer, rectangular enclosure (3-6) bottom surface is provided with positioning and guiding groove (3-6-1), switch base (3-2) is provided with on the surface of contact of rectangular enclosure (3-6) bottom surface the positioning and guiding ridge (3-2-2) coordinated with positioning and guiding groove (3-6-1).

2. the trigger architecture of a kind of smart home security device according to claim 1, it is characterized in that: trigger box (3) and also comprise back shroud (3-10), back shroud (3-10) is upper arranges the back shroud key through hole (3-11) corresponding with lock core, back shroud is also provided with mounting hole (3-9).

3. the trigger architecture of a kind of smart home security device according to claim 2, is characterized in that: trigger box (3) and also comprise back shroud installation cavity (3-5).

4. the trigger architecture of a kind of smart home security device according to claim 3, is characterized in that: be provided with the wire fairlead (3-5-1) for being drawn by electrode contacts (3-6-2) in back shroud installation cavity (3-5).