Power cable joint

Abstract

The utility model discloses a power cable joint, which comprises a first branch joint and a second branch joint which are internally provided with cavities, two ends of the first branch joint are respectively provided with an opening communicated with the cavity, and the end part of the first branch joint, which is provided with the opening, is in threaded connection with the second branch joint. The second branch connector is provided with a central through hole for a cable to penetrate through, an insulating connecting sleeve is fixedly installed on the inner wall of the cavity, two first conductive columns are arranged in the insulating connecting sleeve in the length direction in a spaced mode, and a second conductive column is arranged between the two parallel first conductive columns. Two fixed wire pressing discs are positioned on the first conductive column and are symmetrically arranged relative to the second conductive column; the two ends of the first conductive column are each in threaded connection with a movable wire pressing disc, and the fixed wire pressing disc is located between the two movable wire pressing discs. The power cable joint improves the stability of wire connection, prevents the wire from falling off, and improves the overall reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable joint technical field, especially relates to a power cable joint. BACKGROUND

[0002] With the development of economy, the cable rate of city distribution network is higher and higher, and the power cable joint is used in large quantities. The power cable joint has the characteristics of convenient installation, good insulation performance, high temperature resistance and acid and alkali resistance, and is used as a cable accessory for the intermediate connection of cross-linked cables or oil-immersed cables of various voltage levels.

[0003] However, in the prior art, the connection of the wire of the cable and the power cable joint is not stable enough, and the wire connection may fall off, resulting in high temperature in the local part and poor reliability of the electrical connection. SUMMARY

[0004] The utility model discloses a kind of power cable joints, which improves the stability of wire connection, avoids the situation of wire falling off, and improves the overall reliability.

[0005] To achieve the above purpose, the utility model adopts the technical scheme: a kind of power cable joint, comprising: first branch joint with cavity, second branch joint, the both ends of the first branch joint are provided with an opening communicated with the cavity, and the end of the first branch joint with opening is screw-connected with the second branch joint, the second branch joint has the central through hole for cable to pass through;

[0006] The inner wall of the cavity is fixedly installed with an insulating connecting sleeve, two first conductive columns are arranged in the interior of the insulating connecting sleeve and spaced apart along the length direction, a second conductive column is arranged between the two first conductive columns parallel to each other, two fixed wire pressing discs are arranged on the first conductive column and symmetrically with respect to the second conductive column; the both ends of the first conductive column are screw-connected with a movable wire pressing disc, and the fixed wire pressing disc is located between the two movable wire pressing discs.

[0007] The further improved scheme in the above technical solution is as follows:

[0008] 1. In the above scheme, the inner wall of the opening has internal threads, and the second branch joint has external threads matched with the internal threads.

[0009] 2. In the above scheme, the end of the first branch joint with opening is provided with a protruding portion, the internal threads are located on the inner side of the protruding portion, the second branch joint is provided with a recessed portion on the side facing the first branch joint, and the external threads are located on the outer side of the recessed portion.

[0010] 3. The first conductive column is provided with a thread on the circumferential outer wall at both ends, and the movable wire pressing disc is threadedly connected with the first conductive column through a nut.

[0011] 4. The second conductive column is coaxially arranged with the center through hole. By means of the technical scheme, the utility model has the following advantages compared with the prior art:

[0012] The utility model discloses a power cable joint, its first branch joint has the end with the opening and is threadedly connected with the second branch joint, the second branch joint has the center through hole for cable to pass through, the inner wall of cavity is fixedly installed with an insulating connecting sleeve, through fixing and installing the insulating connecting sleeve in the inside of cavity, the both ends of first branch joint are connected with second branch joint respectively, thereby realizing the stable installation of insulating connecting sleeve, improve the stability of the connection of first conductive column and wire, avoid the situation that wire falls off due to the rotation of insulating connecting sleeve, and it is favorable to improve the stability of wire connection, further, it is provided with a second conductive column between the two first conductive columns that are parallel to each other, two fixed wire pressing discs are symmetrically arranged on the first conductive column and about the second conductive column, the both ends of first conductive column are threadedly connected with a movable wire pressing disc, and the fixed wire pressing disc is located between the two movable wire pressing discs, on the basis of realizing electrical connection, through setting up two movable wire pressing discs on the first conductive column and setting up two fixed wire pressing discs between the two movable wire pressing discs, the wire wound on the surface of first conductive column can be further pressed and fixed, the stability of wire connection is improved, the situation that wire falls off is avoided, and the overall reliability is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the overall structure schematic diagram of the utility model power cable joint;

[0014] Figure 2 It is the internal structure schematic diagram of the utility model power cable joint;

[0015] Figure 3 It is the local structure schematic diagram of the utility model power cable joint Figure 1 ;

[0016] Figure 4 It is the local structure schematic diagram of the utility model power cable joint Figure 2 .

[0017] In the above drawing, 1, center through hole;2, first branch joint;201, cavity;202, opening;203, convex part;3, second branch joint;301, recess;6, insulating connecting sleeve;7, first conductive column;8, second conductive column;9, fixed wire pressing disc;10, movable wire pressing disc;11, nut;12, spring;13, internal thread;14, external thread. DETAILED DESCRIPTION

[0018] The utility model can be further understood by the specific embodiments given below, but they are not limitations of the utility model.

[0019] Embodiment 1: a power cable joint, comprising: first branch joint 2 built-in cavity 201, second branch joint 3, both ends of the first branch joint 2 are provided with an opening 202 communicated with the cavity 201, and the end of the first branch joint 2 with the opening 202 is threadedly connected with the second branch joint 3, and the second branch joint 3 has a central through hole 1 for the cable to pass through;

[0020] In use, the second branch joint at both ends of the first branch joint is removed, and two cables are respectively passed through the central through hole of the second branch joint, and then the wires are wound on the surface of the first conductive column at the corresponding position;

[0021] The inner wall of the cavity 201 is fixedly installed with an insulating connecting sleeve 6, two first conductive columns 7 are arranged in the interior of the insulating connecting sleeve 6 and spaced apart along the length direction, a second conductive column 8 is arranged between the two first conductive columns 7 which are parallel to each other, two fixed wire pressing discs 9 are arranged on the first conductive column 7 and symmetrically about the second conductive column 8; the two ends of the first conductive column 7 are threadedly connected with a movable wire pressing disc 10, and the fixed wire pressing disc 9 is located between the two movable wire pressing discs 10.

[0022] Meanwhile, the nut can be screwed to drive the movable wire pressing disc to approach the fixed wire pressing disc, so that the fixed wire pressing disc and the movable wire pressing disc cooperate to further press and fix the wires, and after being fixed, the two second branch joints are connected with the first branch joint respectively, realizing the connection and protection operation of the power cable joint.

[0023] The end of the first branch joint 2 with the opening 202 is provided with a protruding portion 203, the internal thread 13 is located on the inner side of the protruding portion 203, one side of the second branch joint 3 facing the first branch joint 2 is provided with a recessed portion 301, and the external thread 14 is located on the outer side of the recessed portion 301.

[0024] The circumferential outer wall of the two ends of the first conductive column 7 is provided with a thread, and the movable wire pressing disc 10 is threadedly connected with the first conductive column 7 through the nut 11.

[0025] Embodiment 2: a power cable joint, comprising: first branch joint 2 built-in cavity 201, second branch joint 3, both ends of the first branch joint 2 are provided with an opening 202 communicated with the cavity 201, and the end of the first branch joint 2 with the opening 202 is threadedly connected with the second branch joint 3, and the second branch joint 3 has a central through hole 1 for the cable to pass through;

[0026] By fixing and installing the insulating connecting sleeve in the inside of the cavity, the two ends of the first branch joint are connected with the second branch joint respectively, so that the stability of the connection between the first conductive column and the wire is improved while realizing the stable installation of the insulating connecting sleeve, the situation that the wire is off caused by the rotation of the insulating connecting sleeve is avoided, and the stability of the wire connection is improved.

[0027] The inside wall of the cavity 201 is fixedly installed with an insulating connecting sleeve 6, two first conductive columns 7 are arranged in the inside of the insulating connecting sleeve 6 and are spaced apart along the length direction, a second conductive column 8 is arranged between the two first conductive columns 7 which are parallel to each other, two fixed wire pressing discs 9 are arranged on the first conductive column 7 and are symmetrically arranged about the second conductive column 8; the two ends of the first conductive column 7 are both threadedly connected with a movable wire pressing disc 10, and the fixed wire pressing disc 9 is located between the two movable wire pressing discs 10.

[0028] Further, on the basis of realizing the electrical connection, by arranging two movable wire pressing discs on the first conductive column and arranging two fixed wire pressing discs between the two movable wire pressing discs, the wire wound on the surface of the first conductive column can be further pressed and fixed, the stability of the wire connection is improved, the situation that the wire is off is avoided, and the overall reliability is improved.

[0029] The inside wall of the above-mentioned opening 202 has an internal thread 13, and the second branch joint 3 has an external thread 14 matched with the internal thread 13.

[0030] The first branch joint 2 has a protruding portion 203 arranged at the end of the opening 202, the internal thread 13 is located at the inside of the protruding portion 203, the second branch joint 3 is provided with a recessed portion 301 on the side facing the first branch joint 2, and the external thread 14 is located at the outside of the recessed portion 301.

[0031] The circumferential outer wall of the two ends of the above-mentioned first conductive column 7 is provided with a thread, and the movable wire pressing disc 10 is threadedly connected with the first conductive column 7 through a nut 11.

[0032] The above-mentioned second conductive column 8 and the center through hole 1 are coaxially arranged.

[0033] Working principle: in use, the second branch joint at the two ends of the first branch joint is removed, two cables are respectively passed through the center through hole of one second branch joint, and then the wire is wound on the surface of the corresponding first conductive column;

[0034] Meanwhile, the nut can be screwed to drive the movable pressing disc to approach the fixed pressing disc, so that the fixed pressing disc and the movable pressing disc cooperate to further press and fix the wire, and then the two second branch joints are connected with the first branch joint respectively, so that the connection and protection operation of the power cable joint is realized.

[0035] When the power cable joint is used, the insulating connecting sleeve is fixedly installed in the cavity, and the two ends of the first branch joint are connected with the second branch joint, so that the stability of the insulating connecting sleeve is ensured, the stability of the connection between the first conductive column and the wire is improved, and the situation that the wire is detached due to the rotation of the insulating connecting sleeve is avoided, and the stability of the wire connection is improved.

[0036] Further, on the basis of realizing the electrical connection, two movable pressing discs are arranged on the first conductive column, and two fixed pressing discs are arranged between the two movable pressing discs, so that the wire wound on the surface of the first conductive column can be further pressed and fixed, the stability of the wire connection is improved, the situation that the wire is detached is avoided, and the overall reliability is improved.

[0037] The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model shall be covered within the protection scope of the utility model.

Claims

1. A power cable connector, characterized in that: include: The first branch connector (2) and the second branch connector (3) are built into a cavity (201). Both ends of the first branch connector (2) are provided with an opening (202) communicating with the cavity (201). The end of the first branch connector (2) with the opening (202) is threadedly connected to the second branch connector (3). The second branch connector (3) has a central through hole (1) for the cable to pass through. An insulating connecting sleeve (6) is fixedly installed on the inner wall of the cavity (201). Two first conductive posts (7) are arranged at intervals along the length direction inside the insulating connecting sleeve (6). A second conductive post (8) is arranged between the two parallel first conductive posts (7). Two fixed pressure plates (9) are arranged on the first conductive posts (7) and symmetrically about the second conductive posts (8). Both ends of the first conductive posts (7) are threaded to a movable pressure plate (10), and the fixed pressure plate (9) is located between the two movable pressure plates (10).

2. The power cable connector according to claim 1, characterized in that: The inner wall of the opening (202) has an internal thread (13), and the second branch joint (3) has an external thread (20) that mates with the internal thread (13).

3. The power cable connector according to claim 2, characterized in that: The first branch connector (2) has a protrusion (203) at the end with an opening (202), and the internal thread (13) is located inside the protrusion (203). The second branch connector (3) has a recess (301) on the side facing the first branch connector (2), and the external thread (20) is located outside the recess (301).

4. The power cable connector according to claim 1, characterized in that: The outer circumferential walls at both ends of the first conductive post (7) are provided with threads, and the movable pressure plate (10) is threadedly connected to the first conductive post (7) through a nut (11).

5. The power cable connector according to claim 1, characterized in that: The second conductive post (8) and the central through hole (1) are arranged coaxially.

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