CN216564474U

CN216564474U - Cable joint structure

Info

Publication number: CN216564474U
Application number: CN202122916179.3U
Authority: CN
Inventors: 刘明
Original assignee: Chongqing Chuchu Technology Co ltd
Current assignee: Chongqing Chuchu Technology Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-05-17
Anticipated expiration: 2031-11-25

Abstract

The utility model relates to the technical field of cable joints and discloses a cable joint structure which comprises a T-shaped joint and an insulating plug, wherein the T-shaped joint is provided with a sealing interface, a first interface used for connecting a cable and a second interface used for connecting a cabinet body sleeve, and the sealing interface and the second interface are oppositely arranged and are mutually communicated; one end of the insulating plug is inserted into the sealing port, and the insulating plug is provided with a mounting hole and an exhaust hole; a piston is arranged in the mounting hole, a traction piece is arranged on the piston, one end of the traction piece is connected with the piston, and the other end of the traction piece extends out of the mounting hole; an exhaust port is arranged on the side wall of the mounting hole, the exhaust port is arranged on one side of the piston, which is far away from the sealing interface, one end of the exhaust port is communicated with the exhaust port, the other end of the exhaust port is communicated with the end face of one end, which is inserted into the sealing interface, of the insulating plug, and the piston can block the exhaust port in a sliding manner; it can effectively solve the exhaust problem that the insulating plug was plugged in the in-process, and the operation is swift convenient.

Description

Cable joint structure

Technical Field

The utility model relates to the technical field of cable connectors, in particular to a cable connector structure.

Background

In the prior art, a T-shaped joint is needed for high-voltage underground cable connection such as an American box transformer substation, a ring main unit, a cable distribution box and the like. One end of the T-shaped joint is often required to be sealed through the insulating plug in the installation process, because the insulating plug is usually installed at the last, the air in the T-shaped joint is difficult to discharge in the plugging process of the insulating plug, so that the insulating plug is difficult to plug or a small amount of compressed air which cannot be discharged exists in the T-shaped joint after the insulating plug is plugged, the connection performance is affected, and therefore improvement is needed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model provides a cable joint structure which can effectively solve the problem of exhaust in the process of plugging an insulating plug and is quick and convenient to operate.

In order to achieve the purpose, the cable joint structure comprises a T-shaped joint and an insulating plug, wherein the T-shaped joint is provided with a sealing interface, a first interface used for connecting a cable and a second interface used for connecting a cabinet sleeve, and the sealing interface and the second interface are oppositely arranged and are communicated with each other; one end of the insulating plug is inserted into the sealing port, a mounting hole and an exhaust hole are formed in the insulating plug, and the mounting hole penetrates through two ends of the insulating plug; a piston is arranged in the mounting hole and can be arranged in the middle of the mounting hole in a sliding manner, a pulling piece is arranged on the piston, one end of the pulling piece is connected with the piston, and the other end of the pulling piece extends out of the mounting hole in the direction far away from the sealing interface; be equipped with the gas vent on the lateral wall of mounting hole, the gas vent sets up the piston is kept away from one side of sealing interface, the one end in exhaust hole with the gas vent intercommunication, the other end in exhaust hole with insulating stopper inserts the terminal surface intercommunication of sealing interface's one end, the piston slides and to block up the gas vent.

In one embodiment, a drawing hole is formed in an end face of one end, away from the sealing interface, of the piston, one end of the drawing piece is arranged in the drawing hole in a pluggable mode, and the drawing piece can be inserted into one end of the piston and limited in the drawing hole by rotating the drawing piece.

In one embodiment, a limiting part is arranged on the inner wall of the drawing hole, the limiting part is arranged close to the orifice of the drawing hole, a drawing part is arranged at one end of the drawing piece inserted into the drawing hole, the drawing part extends to the bottom of the drawing hole through the limiting part, and the drawing part can be limited at the bottom of the drawing hole by rotating the drawing piece through the limiting part.

In one embodiment, the drawing part is in a T-shaped structure, and the limiting parts are two sets of lugs oppositely arranged on the inner wall of the drawing hole.

In one embodiment, the cross-sectional shape of the projection is arcuate.

The cable joint structure at least has the following advantages:

(1) when the insulating plug is plugged into the sealing interface, the internal air can be discharged through the exhaust hole, the insulating plug is convenient to install, the traction piece pulls the piston to slide and plug the exhaust hole to complete sealing, and the operation is quick and convenient.

(2) And during later maintenance, the piston is pushed into the sealing interface, so that the exhaust port is communicated with the atmosphere again, and the insulating plug is convenient to remove.

(3) The traction piece is inserted into the traction hole and limited in the traction hole, so that the piston can be conveniently pulled to complete sealing, and after the traction piece is pulled out of the traction hole, a tool can be conveniently used for pushing back the piston to remove the insulating plug.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

Fig. 1 is a front cross-sectional view of a cable joint structure according to an embodiment of the present invention;

FIG. 2 is a front cross-sectional view of the insulation plug shown in FIG. 1;

FIG. 3 is a left side view of the piston shown in FIG. 2;

reference numerals:

1-T-shaped joint, 11-sealing interface, 12-first interface, 13-second interface, 2-insulating plug, 21-mounting hole, 22-exhaust hole, 23-exhaust hole, 24-piston, 241-drawing hole, 242-limiting part, 25-drawing piece, 251-drawing part, 31-cabinet casing pipe, 32-connecting screw rod, 33-crimping terminal and 34-cable head.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the utility model pertains.

In the description of the present application, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, a cable joint structure according to an embodiment includes a T-shaped joint 1 and an insulation plug 2, which can effectively solve the problem of air exhaust during the plugging process of the insulation plug, and is fast and convenient to operate.

Specifically, the T-shaped joint 1 is provided with a sealing interface 11, a first interface 12 for connecting a cable, and a second interface 13 for connecting a cabinet casing 31. The sealing port 11 is disposed opposite to the second port 13 and penetrates each other. The T-shaped joint 1 is used as an insulation protection main body of connection and circuits and can be made of insulation materials such as ethylene propylene diene monomer rubber. It will be appreciated that the construction and materials of the tee 1 may be referred to in the art as a tee. When the connecting device is used, the T-shaped joint 1 is sleeved on a cabinet body sleeve 31 arranged in an American case type transformer substation, a ring main unit and the like through the second interface 13, so that a connecting screw 32 arranged in the cabinet body sleeve 31 is positioned in the second interface 13 and the sealing interface 11. The cable head 34 of the cable is provided with a crimping terminal 33, the cable head 34 and the crimping terminal 33 are inserted into the first interface 12, and the cable is mounted on the connecting screw 32 through the crimping terminal 33 and fixed.

One end of the insulating plug 2 is inserted into the sealing interface 11. The insulating plug 2 is provided with a mounting hole 21 and an exhaust hole 22. The mounting holes 21 are provided through both ends of the insulating plug 2. A piston 24 is arranged in the mounting hole 21, and the piston 24 is slidably arranged in the middle of the mounting hole 21. Specifically, the insulating plug 2 is inserted into the sealing interface 11 to seal the T-shaped joint 1. For the convenience of installation, the sealing interface 11 and the insulating plug 2 may be correspondingly provided with a tapered structure. The piston 24 is disposed in the mounting hole 21 and blocks the mounting hole 21. The piston 24 and the insulating plug 2 can be made of insulating plastics or rubber, and the piston 24 is limited in the mounting hole 21 through friction force or elastic deformation stress between the piston and the inner wall of the mounting hole 21. The external force can slide the piston 24 in the mounting hole 21 against the frictional force or the elastic deformation stress.

The piston 24 is provided with a pull member 25. One end of the pulling piece 25 is connected with the piston 24, and the other end of the pulling piece 25 extends out of the mounting hole 21 in the direction away from the sealing interface 11. The pulling member 25 is used for pulling the piston 24 to slide. The pull member 25 may be fixedly attached or removably attached to the piston 24.

An exhaust port 23 is arranged on the side wall of the mounting hole 21, and the exhaust port 23 is arranged on the side of the piston 24 far away from the sealing interface 11. One end of the exhaust hole 22 communicates with the exhaust port 23, and the other end of the exhaust hole 22 communicates with the end surface of the end of the insulating plug 2 inserted into the seal port 11. The piston 24 slides to close the exhaust port 23. Specifically, when the insulating plug 2 is installed, the inside of the T-shaped joint 1 is communicated with the outside atmosphere through the exhaust hole 22, the exhaust hole 22 and the installation hole 21 in sequence. When the insulating plug 2 is plugged into the sealing interface 11, the internal air can be discharged through the exhaust hole 22, and the insulating plug 2 is convenient to install. After the insulating plug 2 is plugged in, the pulling piece 25 pulls the piston 24 to slide to plug the exhaust port 23 to complete sealing, and the operation is quick and convenient. During later maintenance, the piston 24 is pushed into the sealing interface 11, so that the exhaust port 23 can be communicated with the atmosphere again, and the insulating plug 2 is convenient to remove.

In one embodiment, the pulling member 25 is a flexible rope, and one end of the pulling member 25 is fixedly connected to the piston 24. The pulling member 25 may be a nylon rope, a PVC rope, or the like.

In one embodiment, a pull hole 241 is provided on an end surface of the piston 24 away from the end of the seal interface 11. One end of the pulling element 25 is arranged in the pulling hole 241 in a pluggable manner, and the pulling element 25 can be inserted into one end of the piston 24 by rotating the pulling element 25 and limited in the pulling hole 241. Specifically, the inner wall of the pulling hole 241 is provided with a limiting portion 242. The stopper 242 is disposed near the opening of the drawing hole 241. One end of the pulling member 25 inserted into the pulling hole 241 is provided with a pulling part 251. The pulling portion 251 extends to the bottom of the pulling hole 241 through the position-limiting portion 242. The pulling part 251 can be limited at the bottom of the pulling hole 241 by rotating the pulling piece 25 through the limiting part 242. Specifically, the pulling part 251 rotates with the pulling member 25, so that the pulling part 251 is limited between the bottom of the hole 241 and the limiting part 242, and the pulling member 25 pulls the piston 24 to slide through the pulling part 251. In one embodiment, the pulling portion 251 is a T-shaped structure, and the position-limiting portion 242 is two sets of protrusions oppositely disposed on the inner wall of the pulling hole 241. The pulling part 251 extends into the pulling hole 241 from between the two protrusions, and the pulling member 25 rotates to make the two protrusions limit the T-shaped structure. In one embodiment, the cross-sectional shape of the projections is arcuate. The pulling piece 25 is inserted into the pulling hole 241 and limited in the pulling hole 241, so that the piston 24 can be pulled to complete sealing, and after the pulling piece 25 is pulled out of the pulling hole 241, a tool (such as a screwdriver) can be used for pushing back the piston 24 to remove the insulating plug 2, so that the use is simple and convenient.

According to the cable joint structure in the technical scheme, when the insulating plug 2 is plugged into the sealing interface 11, air in the T-shaped joint 1 is exhausted through the exhaust hole 22, the exhaust port 23 and the mounting hole 21 in sequence, and the insulating plug 2 is convenient to mount; after the insulating plug 2 is plugged in, the piston 24 is pulled by the pulling piece 25 to slide to plug the exhaust port 23 to complete sealing, and the operation is quick and convenient. During later maintenance, push piston 24 in to sealed interface 11, can make inside and atmosphere of T-joint 1 communicate again, the inside and outside atmospheric pressure of balanced T-joint 1, be convenient for demolish insulating stopper 2.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A cable joint structure comprises a T-shaped joint and an insulating plug, and is characterized in that the T-shaped joint is provided with a sealing interface, a first interface used for connecting a cable and a second interface used for connecting a cabinet sleeve, and the sealing interface and the second interface are oppositely arranged and are communicated with each other; one end of the insulating plug is inserted into the sealing port, a mounting hole and an exhaust hole are formed in the insulating plug, and the mounting hole penetrates through two ends of the insulating plug; a piston is arranged in the mounting hole and can be arranged in the middle of the mounting hole in a sliding manner, a pulling piece is arranged on the piston, one end of the pulling piece is connected with the piston, and the other end of the pulling piece extends out of the mounting hole in the direction far away from the sealing interface; be equipped with the gas vent on the lateral wall of mounting hole, the gas vent sets up the piston is kept away from one side of sealing interface, the one end in exhaust hole with the gas vent intercommunication, the other end in exhaust hole with insulating stopper inserts the terminal surface intercommunication of sealing interface's one end, the piston slides and to block up the gas vent.

2. The cable joint structure according to claim 1, wherein a pulling hole is formed on an end surface of an end of the piston away from the sealing interface, one end of the pulling member is pluggable into the pulling hole, and the pulling member is capable of being inserted into one end of the piston by rotating the pulling member, and being limited in the pulling hole.

3. The cable joint structure of claim 2, wherein a limiting portion is disposed on an inner wall of the pulling hole, the limiting portion is disposed near an opening of the pulling hole, a pulling portion is disposed at an end of the pulling member inserted into the pulling hole, the pulling portion extends toward a bottom of the pulling hole through the limiting portion, and the pulling member is rotated to enable the limiting portion to limit the pulling portion at the bottom of the pulling hole.

4. The cable joint structure of claim 3, wherein the pulling portion is formed as a T-shaped structure, and the limiting portion is two sets of protrusions oppositely disposed on the inner wall of the pulling hole.

5. The cable lug structure of claim 4, wherein the lug has an arcuate cross-sectional shape.