CN219181163U

CN219181163U - Cold shrink type terminal cable accessory

Info

Publication number: CN219181163U
Application number: CN202222471991.4U
Authority: CN
Inventors: 张健; 刘军波; 吴彩琴; 杨晓光; 王金良
Original assignee: Joca Jiangsu Intelligent Electric Power Technology Co ltd
Current assignee: Joca Jiangsu Intelligent Electric Power Technology Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-06-13
Anticipated expiration: 2032-09-19

Abstract

The utility model discloses a cold-shrink type terminal cable accessory, and relates to the technical field of cable accessories. The utility model provides an insulating layer, including insulating layer includes outer barrel and insulating inlayer, still be provided with fixed establishment on the lateral wall of outer barrel, fixed establishment includes: the cable accessory comprises a supporting body, a pressure body and a limiting plate, wherein the supporting body is fixed with the outer side wall of the outer cylinder body, the supporting body is annular, the pressure body is formed by a tire-shaped rubber body, the pressure body is fixed with one side, far away from the supporting body, of the supporting body, the limiting plate is fixed with one side, far away from the supporting body, of the pressure body, the pressure body has a pressure-bearing effect, the deformation of the rubber layer of the cable accessory to the cable inside caused by the deformation of the rubber layer of the cable accessory when the whole cable accessory is fixed is avoided, and the damage of the rubber layer of the cable accessory caused by the pressure in the tightening process of the binding can be avoided, so that the service life of the cable accessory can be prolonged.

Description

Cold shrink type terminal cable accessory

Technical Field

The utility model relates to the technical field of cable accessories, in particular to a cold-shrink type terminal cable accessory.

Background

The cold-shrink cable accessory is formed by injecting and vulcanizing elastomer materials (commonly used silicone rubber and ethylene propylene rubber) in a factory, then expanding the diameter of the cable and lining the cable with a plastic spiral support, and when the cable accessory is installed on site, the pre-expanded components are sleeved at the tail end or joint of the cable after being processed, then the plastic spiral strip (support) supported inside is pulled out, and the elastomer material on the surface layer is tightly pressed on the cable for insulation. Because the cold-shrink type cable accessory is heated and shrunk by elastic retractive force at normal temperature, rather than fire like the heat-shrink type cable accessory, the cold-shrink type terminal cable accessory is commonly called as the cold-shrink type cable accessory, is widely applied to a railway, generally works by using 27.5KV on the railway, and is usually fixed with a cable.

When the cable accessory in the prior art is used, the cable accessory is usually required to be fixed by means of the fixing piece, the common fixing piece is a binding hoop, the cable accessory can be fixed at a position required to be fixed by tightening a bolt on the binding hoop, when the binding hoop is contacted with an outer layer rubber layer of the cable accessory and extrudes the outer layer rubber layer, the rubber layer of the cable accessory deforms to an internal cable, and the rubber layer of the cable accessory is damaged due to pressure in the tightening process of the binding hoop, so that the service life of the cable accessory is greatly reduced; in view of this, we propose a cold shrink type termination cable accessory.

Disclosure of Invention

(one) solving the technical problems

In order to overcome the defects in the prior art, the utility model provides a cold-shrink type terminal cable accessory which solves the problems mentioned in the background art.

(II) technical scheme

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a shrinkage formula terminal cable accessory, including insulating layer includes outer barrel and insulating inlayer, still be provided with fixed establishment on the lateral wall of outer barrel, fixed establishment includes:

the support body is fixed with the outer side wall of the outer cylinder body and is in a circular ring shape;

the pressure body is formed by a tire-shaped rubber body and is fixed with one side of the support body away from the support body;

and the limiting plate is fixed with one side of the pressure body away from the supporting body.

Further optionally, convex rings are fixed on the outer cylinder in an array shape.

Further optionally, the outer wall of the insulating inner layer is fixed with the inner wall of the outer cylinder.

Further optionally, a sealed supporting bar is arranged in the pressure body, and air is filled in the supporting bar of the pressure body.

Further optionally, the cross section of the support body is in the shape of an isosceles trapezoid.

Further optionally, the insulating inner layer is provided with a supporting bar, and the supporting bar is cylindrical.

(III) beneficial effects

The utility model provides a cold-shrink type terminal cable accessory. The beneficial effects are as follows:

(1) This shrinkage formula terminal cable accessory, through being provided with the pressure body, the pressure body plays the pressure-bearing effect, avoids binding the hoop and leads to cable accessory's rubber layer deformation to lead to cable accessory's rubber layer deformation to the cable of inside when fixing whole cable accessory to lead to deformation, also can avoid binding the hoop and produce the damage because of pressure at the rubber layer of tightening the in-process cable accessory to can promote cable accessory's life.

(2) The cold-shrink type terminal cable accessory is characterized in that the insulating inner layer is provided with a supporting bar, the supporting bar is pulled out, and the outer cylinder and the insulating inner layer shrink cold under the inherent elastic effect of rubber and are arranged on a cable to manufacture the cable accessory.

Drawings

FIG. 1 is a schematic view of the overall apparatus of the present utility model;

FIG. 2 is a schematic structural view of the fixing mechanism of the present utility model;

fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present utility model.

In the figure: 1. an insulating layer; 11. an insulating inner layer; 12. an outer cylinder; 13. a convex ring; 2. a fixing mechanism; 21. a support body; 22. a pressure body; 23. a limiting plate; 3. and (5) supporting bars.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution: the utility model provides a shrinkage formula terminal cable accessory, includes insulating layer 1 and includes outer barrel 12 and insulating inlayer 11, still is provided with fixture 2 on the lateral wall of outer barrel 12, and fixture 2 includes: a support body 21, a pressure body 22 and a limiting plate 23.

In this embodiment, the supporting body 21 is fixed to the outer sidewall of the outer cylinder 12, and the supporting body 21 is in a ring shape; the pressure body 22 is formed by a tire-shaped rubber body, a sealed supporting bar is arranged in the pressure body 22, air is filled in the supporting bar of the pressure body 22, the pressure body 22 has a pressure-bearing effect through the arrangement of the pressure body 22, deformation of an inner cable caused by deformation of a rubber layer of the cable accessory when the whole cable accessory is fixed by the binding hoop is avoided, damage of the rubber layer of the cable accessory due to pressure in the tightening process of the binding hoop is avoided, and therefore the service life of the cable accessory can be prolonged; the pressure body 22 is fixed with one side of the support body 21 away from the support body 21; the limiting plate 23 is fixed to a side of the pressure body 22 away from the support body 21.

In order to increase toughness of the whole outer cylinder 12 and the insulation inner layer 11, the outer cylinder 12 is fixed with the convex rings 13, and the convex rings 13 are distributed in an array, so that the effect of supporting the whole outer cylinder 12 and the insulation inner layer 11 is achieved, and toughness of the outer cylinder 12 and the insulation inner layer 11 is ensured. The outer wall of the insulating inner layer 11 is fixed to the inner wall of the outer cylinder 12. The cross section of the supporting body 21 is in an isosceles trapezoid shape, and the supporting body 21 is in a ring-shaped structure made of silica gel material and is used for supporting the pressure body 22. The insulating inner layer 11 is provided with a supporting bar 3, and the supporting bar 3 is cylindrical and used for penetrating a cable, when the cable is sleeved with a cable accessory for use, the supporting bar 3 is pulled out, so that the outer cylinder 12 and the insulating inner layer 11 shrink cold under the inherent elastic effect of rubber and are manufactured on the cable to form the cable accessory.

When in use (or use), the support bar 3 is pulled out when the cable wire is sheathed with the cable accessory, so that the outer cylinder 12 and the insulating inner layer 11 shrink cold under the inherent elastic effect of rubber and are arranged on the cable to manufacture the cable accessory;

when needing to fix the cable accessories, need earlier install binding hoop on the position of the fixed establishment 2 looks adaptation on with the cable accessories this moment, then fix the cable accessories through binding hoop, and bind the hoop and screw up the in-process of tightening, binding hoop can extrude pressure body 22, the effect that the gas in the pressure body 22 can play the support, pressure body 22 can extrude support body 21, support body 21 and outer barrel 21's area of contact is great, the phenomenon that outer barrel 12 that leads to because of area of contact is little is caused by great pressure to can protect outer barrel 12.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A cold shrink type terminal cable accessory, characterized by: the insulating layer (1) includes outer barrel (12) and insulating inlayer (11), still be provided with fixed establishment (2) on the lateral wall of outer barrel (12), fixed establishment (2) include:

the support body (21) is fixed with the outer side wall of the outer cylinder body (12), and the support body (21) is in a circular ring shape;

a pressure body (22), wherein the pressure body (22) is formed by a tire-shaped rubber body, and the pressure body (22) is fixed with one side of the support body (21) away from the support body (21);

and the limiting plate (23) is fixed with one side of the pressure body (22) away from the support body (21).

2. A cold shrink type terminated cable accessory as set forth in claim 1, wherein: convex rings (13) are fixed on the outer cylinder body (12) in an array mode.

3. A cold shrink type terminated cable accessory as set forth in claim 1, wherein: the outer wall of the insulating inner layer (11) is fixed with the inner wall of the outer cylinder body (12).

4. A cold shrink type terminated cable accessory as set forth in claim 1, wherein: the pressure body (22) is internally provided with a sealed supporting bar, and the supporting bar of the pressure body (22) is filled with air.

5. A cold shrink type terminated cable accessory as set forth in claim 1, wherein: the cross section of the support body (21) is in an isosceles trapezoid shape.

6. A cold shrink type terminated cable accessory as set forth in claim 1, wherein: the insulating inner layer (11) is provided with a supporting bar (3), and the supporting bar (3) is cylindrical.