CN204290240U - A kind of cable joint part flow arrangement - Google Patents

Abstract

The utility model relates to a cable joint shunt device, which belongs to the technical field of electric cable accessories. It consists of a connecting seat, a slider, a compression screw and a shunt wiring screw. A cable wiring groove is formed on the connecting seat, and a slider is wrapped and installed in the cable wiring groove. A semicircular groove and two shunt wiring grooves are made on the slider. ; One side of the connection seat is equipped with a compression screw through an internal thread hole, one end of the compression screw is movably connected with the slider, and two shunt wiring screws are installed at the bottom of the connection seat. The cable joint shunt device is composed of a connecting seat, a slider, and a pressing screw, which can shunt off most or all of the current on the cable, which improves the safety of live maintenance operations when replacing cable joints, and reduces the difficulty of live work; Moreover, the structure is simple and the operation is convenient. It solves the problem that the inspection and maintenance of live workers are affected due to the excessive current of the cable joint when the existing cable joint is replaced on site.

Description

A cable joint shunt device

technical field

The utility model relates to a cable joint shunt device, which belongs to the technical field of electric cable accessories.

Background technique

With the wide application of power cables, a large number of cable joints must be used in urban power supply systems. By analyzing the fault data of the cable joint, it is found that the bending part of the cable joint is the weakest link in the safe operation of the power system. This is because cable joints are usually produced and installed on site after the laying of power cables is completed. Due to the influence of unfavorable factors in the site environment and the limitations of the production process, the longer the production and installation time, the more prone to overheating and burn-through accidents. At the same time, after a period of overload operation of the cable joint, overheating and oxidation will usually occur at the crimping point, which will gradually increase the contact resistance, the temperature of the contact point will gradually increase, accelerate the aging of the insulation, and eventually cause an accident. However, because the existing cable joints cannot be shunted, after the cable joints are overheated, external force is easy to cause the cable joints to fall off and cause accidents, which seriously affects the inspection and maintenance of live workers.

Contents of the invention

The purpose of this utility model is to provide a simple structure, easy to operate, stable and safe work when the cable joint is overheated and oxidized, and reduce the risk of live work; to solve the problem of overheating and oxidation of the existing cable joint. After the increase, resulting in insulation aging or breakdown, the current of the cable joint is too large when it is replaced, which affects the cable joint shunt device for inspection and maintenance problems of live workers.

The utility model realizes above-mentioned object through following technical scheme

The cable joint shunting device is composed of a connecting seat, a slider, a pressing screw and a shunting wiring screw. There is a semi-circular groove matching the cable wiring groove horizontally on the right side, and two shunt wiring grooves are vertically made on the left side of the slider; an internal threaded hole is made on one side of the connecting seat, and a compression screw is installed in the internal threaded hole. One end of the screw rod is movably connected with the slide block, and the pressing screw rod can rotate 360° in the slide block, and a fixing screw is installed on the slide block; two shunt connecting screw rods are installed at the bottom of the connecting seat.

Compared with the prior art, the utility model has the beneficial effects of

The cable joint shunt device is composed of a connecting seat, a slider, and a pressing screw, which can shunt most or all of the current on the cable, which improves the safety of live maintenance operations when replacing cable joints, and reduces the difficulty of live work; Moreover, the structure is simple and the operation is convenient. It solves the problem that the inspection and maintenance of live workers are affected due to the excessive current of the cable joint when the existing cable joint is replaced on site.

Description of drawings

Fig. 1 is a front view structural schematic diagram of a cable joint shunt device;

Fig. 2 is a top view structural schematic diagram of a cable joint shunt device;

Fig. 3 is a left view structural schematic diagram of a cable joint branching device.

In the figure: 1. Connecting seat, 2. Cable wiring groove, 3. Slider, 4. Internal thread hole, 5. Compression screw, 6. Shunt wiring screw, 7. Shunt wiring groove, 8. Fixing screw, 9, Semicircle slot.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

The cable joint shunting device is composed of a connecting seat 1, a slider 3, a pressing screw 5 and a shunting connecting screw 6. The connecting seat 1 is formed with a cable connecting groove 2, and the cable connecting groove 2 of the connecting seat 1 is wrapped with a slide. Block 3, the right side of the slider 3 is horizontally made with a semicircular groove 9 matching the cable wiring groove 2, and the left side of the slider 3 is vertically made with two shunt wiring grooves 7; one side of the connecting seat 1 is made with an internal thread hole 4 , the internally threaded hole 4 is equipped with a compression screw 5, one end of the compression screw 5 is movably connected with the slider 3, the compression screw 5 can rotate 360° in the slider 3, and a fixing screw 8 is installed on the slider 3; The bottom of the seat 1 is equipped with two shunt connecting screw rods 6 . (See attached drawings 1-3).

The working process of the cable joint shunt device is as follows:

When the cable connector needs to be replaced after a period of overload operation, overheating, oxidation, insulation aging or breakdown at the crimping point, first insert the incoming shunt wire into the shunt junction slot 7 on the slider 3 , and tighten the shunt wire through the compression screw 5, and then consolidate the outlet shunt wire with the shunt connection screw 6. At this time, the cable joint is in the shunt state, and the current on the cable is mostly or completely shunted; then slide block 3 Loosen the fixing screw 8 on the cable, move the slider 3 to the left and then tighten the fixing screw 8, then the cable connector can be removed for replacement, and the repair and maintenance operators will not be affected by electrification or have safety accidents. After the replacement of the cable connector is completed, put the cable connectors of the incoming and outgoing wires into the cable junction groove 2 and the semicircular groove 9, loosen the fixing screw 8, and push the slider 3 through the compression screw 5 to place the cable connector in the cable junction groove 2 and the semicircular groove 9. After the semi-circular groove 9 is pressed tightly, the slider 3 is fastened to the connection seat 1 through the fixing screw 8 on the slider 3, so that the cable connector can be firmly connected into one body, and then the shunt wire can be loosened and removed (it can also be not removed), then the entire replacement of the cable connector is complete. The cable joint shunt device has a simple structure and is easy to operate, and is very suitable for electric power enterprise operators to repair and maintain live electricity when replacing damaged cable joints, effectively avoiding the danger of live repair and maintenance.

The above description is only a preferred embodiment of the present utility model, and the above illustrations do not limit the essence of the present utility model in any form. Those of ordinary skill in the technical field will follow the technology of the present utility model after reading this description. In essence, any simple modification or deformation made to the above specific implementation methods, as well as equivalent embodiments that may be changed or modified into equivalent changes using the technical content disclosed above, still belong to the scope of the technical solution of the present utility model without departing from Essence and scope of the present utility model.

Claims (1)

1. A cable joint shunting device, which is composed of a connecting seat (1), a slider (3), a compression screw (5) and a shunting wiring screw (6), and is characterized in that: the connecting seat (1) is opened There is a cable junction groove (2), and the cable junction groove (2) of the connection seat (1) is wrapped with a slider (3), and the right side of the slider (3) is horizontally made to match the cable junction groove (2). The semi-circular slot (9), two shunt wiring slots (7) are vertically made on the left side of the slider (3); the inner threaded hole (4) is made on one side of the connecting seat (1), and the inner threaded hole (4) is equipped with Compression screw (5), one end of the compression screw (5) is flexibly connected with the slider (3), the compression screw (5) can rotate 360° in the slider (3), and the slider (3) is equipped with Fixing screw (8); two shunt connection screw rods (6) are installed on the bottom of the connecting seat (1).