CN216698903U

CN216698903U - Cable connection structure using self-tapping screw

Info

Publication number: CN216698903U
Application number: CN202122499080.8U
Authority: CN
Inventors: 赵菊芬; 罗鑫荣
Original assignee: Fujian Dpl Energy Technology Co ltd
Current assignee: Fujian Dpl Energy Technology Co ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-06-07
Anticipated expiration: 2031-10-18

Abstract

The utility model discloses a cable connection structure using a self-tapping screw, which comprises a high-voltage cable, a connector, a self-tapping screw and an insulating cold-shrinkable tube, wherein at least one end of the connector is provided with a blind hole, the blind hole is axially sleeved with a high-voltage cable core, the self-tapping screw is inserted into the blind hole from the outer peripheral surface of the connector to expand the high-voltage cable core to the inner wall of the connector to be in close contact with the inner wall of the connector, and the insulating cold-shrinkable tube coats the connector and the connection part of the connector; the utility model has simple and reliable structure, low cost and simple and convenient field construction, and does not need to prefabricate and press the line nose.

Description

Cable connection structure using self-tapping screw

Technical Field

The utility model relates to the technical field of power distribution switchgear manufacturing, in particular to a cable connecting structure using self-tapping screws.

Background

At present, cable wires between outdoor distribution equipment are usually connected through wire noses, the cable wires are required to be inserted into the wire noses and then the appearance is extruded to enable the cable wires to be in close contact with the wire noses, the mode is time-consuming and labor-consuming, the contact walls of the wire noses are exposed outside, conductive accessories are easy to oxidize and corrode, and line insulation short circuit faults often occur.

Meanwhile, most people coat the silica gel sleeve at the joint of the line nose, and the silica gel sleeve does not have a sealing and insulating function, so that the line nose can be prevented from touching the wall to be oxidized and corroded, and the line insulation short circuit fault caused by the external environment of the power transmission line cannot be avoided.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a cable connection structure using a tapping screw.

In order to achieve the purpose, the technical scheme of the utility model is as follows: the utility model provides an use cable connection structure of tapping screw, includes high tension cable line, connector, tapping screw and insulating cold shrink pipe, the at least one end of connector is equipped with the blind hole, the high tension cable sinle silk is cup jointed to the blind hole axial, the tapping screw inserts the blind hole from the connector outer peripheral face, makes high tension cable sinle silk expand to connector inner wall in close contact with, insulating cold shrink pipe cladding connector and junction.

The connector is further improved, at least one first threaded hole communicated with the blind hole is formed in the outer peripheral surface of the connector, and the first threaded hole is matched with the self-tapping screw.

The improved high-voltage cable connector is characterized in that a blind hole is formed in one end of the connector, a second threaded hole is formed in the other end of the connector, a high-voltage cable core is axially sleeved in the blind hole, and the second threaded hole is axially matched with an outgoing line stud on a switch pole column and locked by a nut.

Still further, the second threaded hole is not communicated with the blind hole.

Still further, the insulating cold-shrink tube covers the outlet stud.

The improved connector is characterized in that two blind holes are respectively formed in two ends of the connector, and the blind holes are all sleeved with high-voltage cable cores.

Still further, the connector periphery face is equipped with the spanner draw-in groove to the connector installation or dismantlement.

Through the technical scheme provided by the utility model, the method has the following beneficial effects:

the conductor connecting structure adopting automatic screw expansion fastening enables the high-voltage cable core to be tightly connected with the connector, has the advantages of stable current carrying, reliability and safety, and the high-elasticity cold shrink tube is coated outside the connector and the joint of the connector to play a role in sealing and insulating, so that the connector is effectively prevented from being oxidized and corroded.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present invention;

FIG. 2 is an enlarged view at A of FIG. 1;

FIG. 3 is a schematic view of the first embodiment of the connector of the present invention connected to a high voltage cable;

fig. 4 is a schematic view of a second embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Example 1

Referring to fig. 1 to 2, a cable connection structure using a tapping screw includes a high-voltage cable 1, a connector 2, a tapping screw 3, a switch pole 4, and an insulating cold shrink tube 5. Connector 2 one end is equipped with the blind hole, blind hole axial cup joints high-voltage cable sinle silk 11, self-tapping screw 3 inserts the blind hole from 2 outer peripheral faces of connector, makes high-voltage cable sinle silk 11 expand to 2 inner wall in close contact with of connector. As shown in fig. 3, the other end of the connector 2 is provided with a second threaded hole, and the second threaded hole is axially matched with the outlet stud 41 on the switch pole 4 and locked by the nut 6. The insulating cold shrink tube 5 covers the connector 2, the connection part of the connector 2 and the high-voltage cable 1 and the wire outlet stud 41. Alternatively, in other embodiments, other parts may be used instead of the tapping screws 3 to expand the high-voltage cable core into close contact with the connector 2.

Specifically, be equipped with the first screw hole of three intercommunication blind holes on the connector 2 periphery, first screw hole and self-tapping screw 3 cooperation. Self-tapping screw 3 inserts from first screw hole and makes high-voltage cable core 11 inflation to make high-

voltage cable core

11 and 2 inner walls in close contact with of connector, play reliable electrically conductive contact and screw locking effect.

With continued reference to fig. 2, the second threaded hole 21 and the blind hole do not communicate with each other.

As shown in fig. 3, the connector 2 is provided with a wrench slot 22 on its outer circumference for facilitating the installation or removal of the connector 2.

Example 2

As shown in fig. 4, two end faces of the connector 2 are respectively provided with a blind hole, and the outer peripheral surface of the connector 2 is respectively provided with three first threaded holes communicated with the blind holes. The high-voltage cable core 11 is inserted into the blind hole, and the self-tapping screw 3 is inserted from the first threaded hole to expand the high-voltage cable core 11, so that the high-voltage cable core 11 is in close contact with the inner wall of the connector 2, and the butt joint of the high-voltage cable 1 is realized.

the conductor connecting structure adopts the self-tapping screw to expand and fasten, has simple and reliable structure, low cost and simple and convenient field construction, does not need to prefabricate and press a line nose, and saves time and manpower;

and secondly, the current carrying of the conductive wiring scheme adopting the spiral fastening is stable, reliable and safe, and the high-elasticity cold shrink tube coated outside the conductor plays a role in sealing and insulating, so that the oxidation corrosion of a wire nose is effectively prevented.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A cable connection structure using a tapping screw, characterized in that: the high-voltage cable connector comprises a high-voltage cable, a connector, a tapping screw and an insulating cold shrink tube, wherein a blind hole is formed in at least one end of the connector, a high-voltage cable core is axially sleeved in the blind hole, the tapping screw is inserted into the blind hole from the outer peripheral surface of the connector, so that the high-voltage cable core is expanded to be in close contact with the inner wall of the connector, and the insulating cold shrink tube covers the connector and the joint of the connector.

2. A cable connection structure using a tapping screw as set forth in claim 1, wherein: and the outer peripheral surface of the connector is provided with at least one first threaded hole communicated with the blind hole, and the first threaded hole is matched with the self-tapping screw.

3. A cable connection structure using a tapping screw as set forth in claim 1, wherein: one end of the connector is provided with a blind hole, the other end of the connector is provided with a second threaded hole, the blind hole is axially sleeved with the high-voltage cable core, and the second threaded hole is axially matched with an outgoing line stud on the switch pole column and is locked by a nut.

4. A cable connection structure using a tapping screw as set forth in claim 3, wherein: the second threaded hole is not communicated with the blind hole.

5. A cable connection structure using a tapping screw as set forth in claim 3, wherein: the insulating cold-shrink tube covers the outlet stud.

6. A cable connection structure using a tapping screw as set forth in claim 1, wherein: the connector both ends respectively are equipped with a blind hole, the blind hole all cup joints high-voltage cable core.

7. A cable connection structure using a tapping screw according to any one of claims 1 to 6, wherein: and a wrench clamping groove is formed in the outer peripheral surface of the connector.