CN204696637U - Power cable linear pattern splicing ear - Google Patents

Abstract

The utility model discloses a linear connecting terminal for power cables, which comprises a connecting terminal body, the connecting terminal body is an integral part integrating an internal connecting conductor and an external hard insulating sleeve, and the connecting conductor is a front-section screw rod and a rear-section spiral tube. the whole piece. The connecting terminal body is equipped with a head, a cover, a rubber pad and a stress tube. The connecting terminal body is integrated with the cable through the threaded lug, stress tube, rubber pad, hard insulating cover and cable. The cable core is in an insulating and closed state. The connection between the wall bushing and the live connection member of the electrical equipment only needs to rotate the butt joint. Before the connecting terminal body is connected, the connecting conductor is insulated and sealed, and the connecting point of the connecting conductor is in the arc extinguishing chamber of the hard insulating sleeve. The process is simple and flexible.

Description

Power cable straight connection terminal

technical field

The utility model relates to a high-voltage cable connection terminal, in particular to a power cable linear connection terminal.

Background technique

In the past, the connecting conductors of the domestic cable connecting terminals were all exposed type, which were easy to discharge, short circuit, electric shock, and many potential safety hazards. The cable connecting members of the European-style cable branch box were equipped with insulating jackets to prevent discharge, short circuit, and electric shock. The metal conductor and its external insulator are separate parts, so when the connection terminal is connected to the wall bushing or the live connection member of the electrical equipment, the connection between the internal conductor and the external insulator needs to be carried out one by one, the process is cumbersome, and the operation flexibility is not strong and time-consuming It is longer; and the operation process cannot be carried out with electricity, which affects the reliability of power supply, has a great impact on production and life, and causes economic losses.

Utility model content

The purpose of the utility model is to provide a power cable linear connection terminal which is easy to operate and can be connected with electricity.

The utility model discloses a linear connecting terminal for power cables, which comprises a connecting terminal body, the connecting terminal body is an integral part integrating an internal connecting conductor and an external hard insulating sleeve, and the connecting conductor is insulated and sealed in the hard insulating sleeve , the connecting ends of the connecting conductors all adopt a threaded connection structure, the connecting conductor is an integral part of the front screw and the rear coil, the outer diameter of the rear screw is larger than the outer diameter of the front screw, and its outer wall has a convex positioning ring.

The front section of the hard insulating sleeve is a cylindrical arc extinguishing chamber, the middle section is a hexagonal wrench clamping section, and the rear section is a cable connection room. The cable connection room is equipped with a stress tube, and the outer wall of the cable connection room has a grounding lead. The connecting hole and the end of the outer wall are connected with a hard insulating cover through external threads.

The length of the front screw of the connecting conductor is less than the depth of the cylindrical arc extinguishing chamber, the front screw of the connecting conductor extends into the cylindrical arc extinguishing chamber, and the rear end surface of the rear screw is insulated and sealed in the hard The axial center of the insulating sleeve.

The front end of the connecting terminal body is connected with a head. The head is an integrated part of the inner conductor and the outer insulator. The inner conductor is a metal coil with a positioning ring. The part of the hard insulator embedded in the metal coil protrudes outward. The protruding section is inserted into the cylindrical arc extinguishing chamber of the hard insulating sleeve and is threadedly connected with the screw section of the connecting conductor.

There is a stepped hole in the axial center of the hard insulating cover, and the large-diameter end of the stepped hole is an internal threaded hole.

When the hard insulating cover and the cover are connected to the connecting terminal body, rubber pads are provided.

The cable is first crimped with the threaded head lug into one body, and the threaded head lug and the connecting terminal body of the utility model are integrally connected by thread. When in use, the sealing head is removed and connected to the wall bushing or the live connection member of the electrical equipment through the butt joint. When the butt joint is connected to the wall bushing or the live connection member of the electrical equipment and the connection terminal body, because the connection conductor of the connection terminal body is completely insulated and enclosed in a hard insulating sleeve, the connection of the connection conductor is in the arc extinguishing chamber, when the staff operates Only the insulating material is in contact, so that the connecting terminal body can realize the live connection operation, thereby reducing the scope of power failure and facilitating safe power supply. The operation is simple, only need to rotate the butt joint when installing and removing.

In order to ensure the cleanness and dryness of the connecting terminal body and the integrity of its thread, the connecting end of the connecting terminal body is first sealed with a head; in order to make the connection operation faster, the wrench clamping section on the connecting terminal body is a hexagonal section ; The setting of the rubber pad can prevent loosening between adjacent connecting parts and has the function of waterproof and moisture-proof.

Description of drawings

Fig. 1 is a schematic diagram of an exploded structure of an embodiment of the present invention.

Detailed ways

As shown in Figure 1, this embodiment discloses a linear connection terminal for power cables, including a connection terminal body, the connection terminal body is an integral part of the connection conductor 1 and the hard insulating sleeve 2, and the connection conductor 1 is insulated and sealed in the The axial center of the hard insulating sleeve 2.

The connecting conductor 1 is an integral part of the front screw rod and the rear coil tube. The outer diameter of the coil tube segment is larger than that of the screw rod segment, and the outer wall has an outwardly protruding positioning ring. The front section of the hard insulating sleeve 2 is a cylindrical arc extinguishing chamber 21, the middle section is a hexagonal wrench holding section 22, and the rear section is a cable connection chamber 23. The cable connection chamber 23 is equipped with a stress tube 3 and an outer wall. The ground lead connection hole 24 and the end of the outer wall are connected with a hard insulating cover 4 through external threads. The length of the front screw of the connecting conductor 1 is less than the depth of the cylindrical arc extinguishing chamber 21, the front screw of the connecting conductor 1 extends into the cylindrical arc extinguishing chamber 21, and the rear end of the rear screw is flush with the front end of the cable connection chamber 23 and insulated Closed in the axial center of the hard insulating sleeve 2.

There is a stepped hole in the axial center of the hard insulating cover 4, and the large diameter end of the stepped hole is an internally threaded hole. The front end of the insulated terminal body is connected with a cap 5, which is an integral part integrating an inner conductor 51 and an outer insulating shell 52, and the inner conductor 51 is a metal coil with a positioning ring. The part of the hard insulator 52 embedded with the metal coil protrudes outwards, and the protruding section is inserted into the cylindrical arc extinguishing chamber 21 of the hard insulating sheath 2 and screwed to the screw section of the connecting conductor 1 .

When the connecting terminal is not in use, the front end and the rear end are respectively connected with a sealing head 5 and a hard insulating cover 4, and a rubber pad 6 is provided at the same time to protect the thread and keep the inside of the connecting terminal clean and dry.

When this connection terminal is in use, first remove the hard insulating cover, put the hard insulating cover on the cable end, then put the rubber pad and stress tube on the cable end, connect the cable core of the cable end with the The threaded lugs are crimped as one; then insert the threaded lugs into the cable connection chamber, clamp the hexagonal section of the outer wall of the hard insulating sleeve with an insulating wrench to rotate the connecting terminal body to securely fix the threaded lugs, and finally The stress tube is pushed into the cable connection chamber, and the hard insulating cover is tightened on the lower end of the hard insulating sleeve, so far the cable and the connecting terminal body are connected into one body. The connecting terminal body can be connected with the wall bushing and the live connection member of the electrical equipment by matching with a suitable butt joint.

Claims (7)

1. a power cable linear pattern splicing ear, it is characterized in that: it comprises splicing ear body, splicing ear body is the single piece of inner bonding conductor and the integration of outside rigid insulation cover, bonding conductor insulation and obturation is in rigid insulation cover, the link of bonding conductor all adopts screw connection structure, bonding conductor is the single piece of leading portion screw rod, back segment screwed pipe, and the external diameter of back segment screwed pipe is greater than the external diameter of leading portion screw rod, and its outer wall has the locating ring of evagination.

2. power cable linear pattern splicing ear according to claim 1, it is characterized in that: the leading portion of described rigid insulation cover is cylindricality arc control device, interlude is spanner gripping section, back segment is cable joining room, be furnished with stress tube in cable joining room, the outer wall of cable joining room has ground lead connecting hole, outer wall end is connected with rigid insulation capping by external screw thread.

3. power cable linear pattern splicing ear according to claim 2, it is characterized in that: the leading portion spiro rod length of described bonding conductor is less than the degree of depth of described cylindricality arc control device, bonding conductor stretches in cylindricality arc control device with leading portion screw rod, the rear end face of back segment screwed pipe is positioned at the axial centre of overlapping in rigid insulation with the front end insulation and obturation of cable joining room.

4. power cable linear pattern splicing ear according to claim 3, it is characterized in that: the front end of described splicing ear body is connected with end socket, end socket is the single piece of inner conductor and outer insulator integration, inner conductor is the metal coil of band locating ring, the part of rigid insulation body encasing metal screwed pipe is protruded outward, this convex section insert described rigid insulation cover cylindricality arc control device in be threaded with the spiro rod section of bonding conductor.

5. power cable linear pattern splicing ear according to claim 2, is characterized in that: the spanner gripping section of described rigid insulation cover is hexagonal prism section.

6. power cable linear pattern splicing ear according to claim 2, is characterized in that: the axial centre of described rigid insulation capping has shoulder hole, the bigger diameter end of shoulder hole is internal thread hole.

7. power cable linear pattern splicing ear according to claim 3, is characterized in that: all supporting rubber blanket when described rigid insulation capping is connected with described splicing ear body with end socket.