CN218005849U

CN218005849U - Secondary cable terminal

Info

Publication number: CN218005849U
Application number: CN202221665541.2U
Authority: CN
Inventors: 刘云飞; 安旺成; 罗童; 马文博; 刘杰
Original assignee: Dingxi Power Supply Co Of State Grid Gansu Electric Power Co
Current assignee: Dingxi Power Supply Co Of State Grid Gansu Electric Power Co
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-12-09
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a secondary cable terminal relates to cable terminal technical field, including the cable main part, the cable main part includes the insulating layer, the inside of insulating layer is provided with a plurality of protective layers, the surface of cable main part can be dismantled and change and be equipped with the nut main part, the mounting hole has been seted up on the surface of nut main part, the inside swing joint of mounting hole has the shielded wire, because the material of the outside insulating layer of cable main part is softer, and the material of nut main part is harder, cup joint when the cable main part is outside when the nut main part, when receiving harder screw thread oppression, the outside of cable main part also can form the screw thread, thereby the internal thread of nut main part can with size assorted cable main part between twist together, still be provided with the sealing washer between nut main part and the cable main part, can strengthen the waterproof nature of nut main part through setting up the sealing washer, the right-hand member threaded connection of nut main part has the compelling head, through setting up the position between compelling head can relatively fixed seal circle and the nut main part.

Description

Secondary cable terminal

Technical Field

The utility model relates to a cable termination technical field specifically is a secondary cable termination.

Background

The cable terminal refers to a connecting device from a cable to equipment, and in recent years, with the continuous promotion of power grid engineering construction, the engineering of new construction, extension, transformation and the like of a transformer substation is increasing day by day, and the workload for manufacturing a secondary cable terminal in the corresponding transformer substation is increasing day by day. In the construction process such as newly-built, secondary system transformation of transformer substation in the past, between secondary protection screen, terminal box, intelligent cabinet etc. between primary system and the secondary system, the cable uses most, is the bridge of contact entire system, and among the prior art, the cable terminal that is connected between cable and the equipment need be makeed on the scene, but among the prior art, cable terminal still has following defect when using:

the field manufacturing of the secondary cable terminal brings great workload for constructors, the effect is unsatisfactory, the safety performance is low, the insulation coating of the secondary cable terminal is not firm, a shielding wire is easy to loosen, a sheath is easy to age (outdoors), the manufacturing is time-consuming and labor-consuming, the problems of incapability of being repeatedly used and the like always trouble managers and constructors. Accordingly, one skilled in the art provides a secondary cable termination that solves the problems set forth in the background above.

SUMMERY OF THE UTILITY MODEL

Among the prior art, cable termination insulating department parcel is insecure when using, and the easy not hard up and unable reuse's of shielded wire problem, the utility model aims to provide a secondary cable termination through cup jointing the nut main part in the outside of cable to the position between head relatively fixed cable and the nut main part is compeled in the cooperation, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a secondary cable terminal, includes the cable main part, and the cable main part includes the insulating layer, and the inside of insulating layer is provided with the protective layer, and the outside of cable main part can be dismantled and be equipped with the nut main part, and the inner wall and the right-hand member surface of nut main part left end all are provided with the screw thread.

As a further aspect of the present invention: the nut main part includes the mounting hole, and the inside swing joint of mounting hole has the shielded wire.

As the utility model discloses further scheme again: and a sealing ring is movably connected between the nut main body and the cable main body.

As a further aspect of the present invention: the external thread on the right side of the nut main body is connected with a tightening head.

As a further aspect of the present invention: a hanging ring is movably connected between the nut main body and the tightening head, and a cable hanging line is arranged on the surface of the hanging ring.

As the utility model discloses further scheme again: the inner diameter of the suspension ring is the same as the diameter of the right end of the nut body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through cup jointing the nut main part in the outside of cable main part, because the inner wall of nut main part all is provided with the screw thread with the surface, can be when using, because the insulating layer material on cable main part surface is softer, the material of nut main part is harder, so when the diameter of cable main part matches with the internal diameter of nut main part, can be through the position between internal thread quick fixed cable main part and the nut main part, and follow-up convenient to detach reuse.

2. The utility model discloses in, through set up the sealing washer between cable main part and nut main part, the gap between cable main part and the nut main part can be filled up to the sealing washer, strengthens the leakproofness of nut main part, and the outside of nut main part still threaded connection have compels tight head, through the mating reaction that compels tight head, can further relatively fix the position between nut main part and the sealing washer.

Drawings

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

FIG. 2 is a schematic view of the main body structure of the nut of the present invention;

fig. 3 is a schematic structural view of a nut body for assembling a shielded wire according to the present invention;

FIG. 4 is a schematic structural view of the middle packing head of the present invention

Fig. 5 is a schematic structural view of the middle seal ring of the present invention;

fig. 6 is a schematic structural view of the middle suspension ring of the present invention.

In the figure: 1. a cable main body; 11. an insulating layer; 12. a protective layer; 2. a nut body; 21. mounting holes; 22. a shielded wire; 3. a tightening head; 4. a seal ring; 5. a suspension ring; 51. the cable is suspended from the line.

Detailed Description

Please refer to fig. 1, which is a schematic structural diagram of a secondary cable terminal, the apparatus includes a cable main body 1, the cable main body 1 includes an insulating layer 11 covering the outside of the cable main body 1 and a protective layer 12 assembled inside the insulating layer 11, a nut main body 2 is sleeved on the surface of the cable main body 1, a sealing ring 4 is installed inside the nut main body 2, the sealing ring 4 is sleeved on the surface of the protective layer 12 and located inside the nut main body 2, a fastening head 3 is connected to the surface thread on the right side of the nut main body 2, the sealing ring 4 can be compressed by the fastening head 3, so as to ensure the sealing performance between the nut main body 2 and the cable main body 1.

As shown in fig. 2 and 3, a mounting hole 21 is formed in the surface of the nut body 2, a shielding wire 22 is movably connected inside the mounting hole 21, threads are formed on the inner wall of the left side and the surface of the right side of the nut body 2, and an anti-slip knurl is arranged on the surface of the left side of the nut body 2, so that the friction force between the hand of a user and the nut body 2 is increased when the nut is used, a part of the insulating layer 11 of the cable body 1 can be firstly stripped to expose the protective layer 12 therein, then a part of the protective layer 12 is stripped to expose the copper wire inside the protective layer 12, then the copper wire inside the protective layer 12 is leaked, the left end of the nut body 2 is sleeved outside the insulating layer 11, the right side of the nut body 2 is sleeved outside the copper wire, then the shielding wire 22 is placed inside the mounting hole 21, and the shielding wire 22 is in direct contact with the insulating layer 11 on the surface of the cable body 1 to prevent magnetic field interference and protect the cable body 1, then the sealing ring 4 is sleeved outside the shielding wire 22 and the protective layer 11, so that the position of the shielding wire 22 can be relatively fixed, and the nut body 2 can be relatively rotated until the nut body 2 can be relatively fixed.

In the embodiment, the main material of the nut main body 2 is the flame-retardant polyamide fiber, which is commonly called nylon, and the flame-retardant polyamide fiber has the advantages of high mechanical strength, strong toughness, higher tensile strength and compressive strength, higher tensile strength than metal and tensile strength close to yield strength; the fatigue resistance is outstanding, and the original mechanical strength of the product can be still maintained after repeated bending; the softening point is high and the heat resistance is high; the surface is smooth, the friction coefficient is small, and the wear resistance is realized; corrosion resistance, ageing resistance and the like, so the flame-retardant polyamide fiber is used as a main manufacturing material.

In this embodiment, the 11 materials of insulating layer of 1 outside of cable main part are polyvinyl chloride, polyvinyl chloride's material is softer, nut main part 2's material is nylon, and nylon's material is harder, can form the screw thread when receiving the inside screw thread oppression of harder nylon finished piece, thereby 2 internal threads of nut main part can directly be screwed up together with the phase-match cable shell, the external screw thread is used for providing the strong point for compelling first 3 internal threads, also be convenient for later stage dismantlement nut main part 2 simultaneously, reuse of being convenient for.

As shown in fig. 4, which is a schematic structural diagram of the tightening head 3 in this embodiment, the tightening head 3 is a hollow cylindrical structure, the inner wall of the tightening head 3 is provided with threads matching with the outside of the nut body 2, and the outside of the tightening head 3 is provided with anti-slip knurls, so that when in use, the friction force between the hand of a user and the tightening head 3 can be increased, thereby facilitating the tightening between the tightening head 3 and the nut body 2, and further facilitating the use.

As shown in fig. 5, which is a schematic structural diagram of the sealing ring 4 in this embodiment, the sealing ring 4 is a circular elastic structure, and corners are processed by wool, and can be placed between the cable main body 1 and the nut main body 2 when in use, so as to fill up gaps between the cable main body 1 and the nut main body 2, prevent water from entering the nut main body 2, and then fix the position between the nut main body 2 and the sealing ring 4 relatively by the cooperation of the pressing head 3, thereby further enhancing the sealing performance of the nut main body 2.

As shown in fig. 6, which is a schematic structural diagram of the suspension ring 5 in the present embodiment, a cable suspension line 51 is installed on one side of the suspension ring 5, the inner diameter of the suspension ring 5 is the same as the diameter of the right side outside the nut body 2, when in use, the suspension ring 5 can be sleeved outside the nut body 2, then the fastening head 3 is assembled with the nut body 2, under the action of the fastening head 3, the position of the suspension ring 5 can be relatively fixed, and by arranging the suspension ring 5 and installing the cable suspension line 51 on the surface of the suspension ring 5, convenience can be provided for the suspension of the cable body 1 when in use.

The above-mentioned, only be the embodiment of the preferred of the present invention, nevertheless the utility model discloses a protection scope is not limited to this, and any technical personnel familiar with this technical field is in the technical scope of the utility model discloses an according to the utility model discloses a technical scheme and utility model design in addition the replacement of equality or change, all should be covered within the protection scope of the utility model.

Claims

1. The utility model provides a secondary cable terminal, includes cable main body (1), and cable main body (1) includes insulating layer (11), and the inside of insulating layer (11) is provided with protective layer (12), its characterized in that, and the outside of cable main body (1) can be dismantled and be equipped with nut main body (2), and the inner wall and the right-hand member surface of nut main body (2) left end all are provided with the screw thread.

2. A secondary cable termination according to claim 1, characterised in that the nut body (2) comprises a mounting hole (21), inside of which mounting hole (21) a shielded wire (22) is movably connected.

3. A secondary cable termination according to claim 1 or 2, characterised in that a sealing ring (4) is movably connected between the nut body (2) and the cable body (1).

4. A secondary cable termination according to claim 3, characterised in that the outer thread on the right side of the nut body (2) is connected with a packing head (3).

5. A secondary cable termination according to claim 4, characterised in that a suspension ring (5) is movably connected between the nut body (2) and the clamping head (3), and a cable suspension line (51) is mounted on the surface of the suspension ring (5).

6. A secondary cable termination according to claim 5, characterised in that the inner diameter of the suspension ring (5) is the same as the diameter of the right end of the nut body (2).