CN218940651U

CN218940651U - Waterproof sleeve of cable cold shrink joint

Info

Publication number: CN218940651U
Application number: CN202223031217.8U
Authority: CN
Inventors: 黄承业; 张海涛; 周翔; 李英杰; 马战奎
Original assignee: Agnor Jiangsu Intelligent Electric Co ltd
Current assignee: Agnor Jiangsu Intelligent Electric Co ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-04-28
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses a waterproof sleeve of a cable cold-shrink joint, which relates to the technical field of cable joints and comprises a sleeve, wherein pipe orifices at two ends of the sleeve are provided with a plurality of elastic clamping pieces uniformly distributed around the circumference of the pipe orifices, gaps are arranged between the elastic clamping pieces, the outer side wall of the pipe orifices is provided with threads, the middle of each elastic clamping piece is inserted with an elastic sealing sleeve, the front end of each sealing sleeve is fixedly connected with a small sealing ring, the tail end of each sealing sleeve is fixedly connected with a large sealing ring, each small sealing ring is in limit connection with the top of each elastic clamping piece, each large sealing ring is in interference fit with the inner wall of the sleeve, and the outer side of each elastic clamping piece is also provided with a tightening cap which is in threaded connection with the sleeve; the waterproof sleeve has the functions of preventing water and isolating air for the cold shrink joint in the middle of the cable, so that the corrosion of metal is delayed, the maintenance cost is reduced, the service life of the cable is prolonged, and the waterproof sleeve is simple and reliable in structure and convenient to install and use.

Description

Waterproof sleeve of cable cold shrink joint

Technical Field

The utility model relates to the technical field of cable joints, in particular to a waterproof sleeve for a cable cold-shrink joint.

Background

In order to make the cable become a continuous line, each section of line must be connected as a whole, and these tie points just need to install cable joint, cable joint department is because there is not the parcel of insulating skin, exposes in steam and air, takes place oxidation corrosion easily, influences its conductivity and life, and the rubberized fabric parcel mode that is used often is sealed and waterproof effect is not ideal enough, has also fallen easily for a long time.

Disclosure of Invention

In order to solve the problems, the utility model provides the following technical scheme:

the utility model provides a waterproof cover of cable shrinkage joint, includes the pipe box, be equipped with a plurality of elasticity clamping pieces around its circumference evenly distributed on the mouth of pipe at pipe box both ends, be equipped with the clearance between the elasticity clamping piece, be equipped with the screw thread on the orificial lateral wall, peg graft in the centre of elasticity clamping piece has elastic seal cover, the front end fixedly connected with little sealing washer of seal cover, the big sealing washer of end fixedly connected with of seal cover, the top spacing connection of little sealing washer and elasticity clamping piece, the inner wall interference fit of big sealing washer and pipe box, the outside of elasticity clamping piece still is equipped with tightens up the cap, tighten up cap and pipe box threaded connection.

Further, the section of the elastic clamping piece is arc-shaped.

Further, an overhaul pipe is arranged in the middle of the pipe sleeve, and a pipe cover is connected to the overhaul pipe in a threaded manner.

Further, the sealing sleeve is made of rubber or silica gel.

Further, the outer side edge of the large sealing ring is provided with a chamfer.

Further, the distance between the small sealing ring and the large sealing ring is larger than or equal to the length of the elastic clamping piece.

Further, the inner wall of the tightening cap is funnel-shaped.

The beneficial effects of the utility model are as follows: according to the technical scheme, water inflow of the cold shrink joint in the middle of the cable is effectively avoided, and the effect of isolating air can be achieved, so that corrosion of metal is delayed, maintenance cost is reduced, and the service life of the cable is prolonged; and the technical scheme has simple and reliable structure and convenient installation and use.

Drawings

Fig. 1 is a schematic overall cross-sectional view of a waterproof jacket of the present utility model;

fig. 2 is a schematic view of a waterproof jacket assembly of the present utility model;

in the figure: 1. the pipe sleeve is 2, the sealing sleeve is 3, the tightening cap is 11, the elastic clamping piece is 12, the screw thread is 13, the maintenance pipe is 21, the small sealing ring is 22, and the large sealing ring is 22.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1-2, a waterproof jacket for a cable cold shrink joint comprises a pipe sleeve 1, a plurality of elastic clamping pieces 11 uniformly distributed around the circumference of the pipe openings at two ends of the pipe sleeve 1 are arranged on the pipe openings at the two ends of the pipe sleeve 1, gaps are arranged between the elastic clamping pieces 11, threads 12 are arranged on the outer side wall of the pipe openings, an elastic sealing sleeve 2 is inserted in the middle of the elastic clamping pieces 11, a small sealing ring 21 is fixedly connected to the front end of the sealing sleeve 2, a large sealing ring 22 is fixedly connected to the tail end of the sealing sleeve 2, the small sealing ring 21 is in limiting connection with the top of the elastic clamping pieces 11, the large sealing ring 22 is in interference fit with the inner wall of the pipe sleeve 1, a tightening cap 3 is further arranged on the outer side of the elastic clamping pieces 11, and the tightening cap 3 is in threaded connection with the pipe sleeve 1.

In this embodiment, the elastic clamping piece 11 is connected with the pipe sleeve 1 into a whole, the sealing sleeve 2 is placed in a ring formed by surrounding the elastic clamping piece 11, the small sealing ring 21 and the large sealing ring 22 are connected with the sealing sleeve 2 into a whole and are elastic, the back surface of the small sealing ring 21 abuts against the top of the elastic clamping piece 11, the tightening cap 3 is in threaded connection with the pipe sleeve 1, and as the tightening cap 3 is in a funnel shape, after the tightening cap 3 is screwed with the pipe sleeve 1 through the threads 12, the top of the elastic clamping piece 11 is tightened towards the center of a circle, so that the small sealing ring 21 is fastened with a cable connector to prevent sliding; the large sealing ring 22 is arranged in the pipe sleeve 1, the outer diameter of the large sealing ring 22 is larger than the inner diameter of the pipe sleeve 1, so that the large sealing ring 22 and the inner wall of the pipe sleeve 1 are expanded to form a sealing structure, and the sealing structures at the two ends of the pipe sleeve 1 are the same, so that a cable joint positioned in the waterproof sleeve is isolated from external air and moisture, the waterproof and air-isolating effects are realized, the corrosion of metal is delayed, the maintenance cost is reduced, and the service life of a cable is prolonged; and the technical scheme has simple and reliable structure and convenient installation and use.

Preferably, the section of the elastic clamping piece 11 is arc-shaped. The arc design can be better attached to the outer wall of the sealing sleeve 2, so that the whole structure is more compact, and the fastening with a cable joint is more reliable.

As shown in fig. 2, preferably, an overhaul pipe 13 is arranged in the middle of the pipe sleeve 1, and a pipe cover is connected to the overhaul pipe 13 in a threaded manner. In practical application, hot melt adhesive can be injected into the overhaul pipe 13, so that the sealing effect is further enhanced; the camera can be penetrated into the pinhole to check the moistureproof and anticorrosion conditions of the internal joint; the tube cover seals the service tube 13.

Preferably, the sealing sleeve 2 is made of rubber or silica gel. The arrangement is convenient for material selection and cost control.

As shown in fig. 2, the outer edge of the large seal ring 22 is preferably provided with a chamfer. The chamfer is arranged to facilitate the insertion of the sealing sleeve 2, so that the insertion resistance is reduced.

Preferably, the distance between the small seal ring 21 and the large seal ring 22 is greater than or equal to the length of the elastic clamping piece 11. Because of the gap between the elastic clamping pieces 11, the large sealing ring 22 must avoid the gap to achieve the sealing effect.

Preferably, the inner wall of the tightening cap 3 is funnel-shaped. The funnel-shaped design can play a role in shrinking and tightening the elastic clamping piece 11, so that the elastic clamping piece 11 clamps the sealing sleeve 2, the sealing sleeve 2 is sealed and fastened with the outer wall of the cable joint, and sliding is prevented.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "top", "bottom", "transverse", "vertical", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The utility model provides a waterproof cover of cable shrinkage joint, includes pipe box (1), its characterized in that, be equipped with on the mouth of pipe at pipe (1) both ends around its circumference evenly distributed's a plurality of elasticity clamping piece (11), be equipped with the clearance between elasticity clamping piece (11), be equipped with screw thread (12) on the lateral wall of mouth of pipe, peg graft in the middle of elasticity clamping piece (11) has elastic seal cover (2), the front end fixedly connected with little sealing washer (21) of seal cover (2), the end fixedly connected with big sealing washer (22) of seal cover (2), the top limit connection of little sealing washer (21) and elasticity clamping piece (11), big sealing washer (22) and the inner wall interference fit of pipe box (1), the outside of elasticity clamping piece (11) still is equipped with tightens up cap (3), tighten up cap (3) and pipe box (1) threaded connection.

2. A waterproof jacket for a cold-shrink joint of a cable according to claim 1, characterized in that the section of the elastic clip (11) is arc-shaped.

3. The waterproof jacket for the cable cold shrink joint according to claim 1, wherein an overhaul pipe (13) is arranged in the middle of the jacket (1), and a pipe cover is connected to the overhaul pipe (13) in a threaded manner.

4. A waterproof jacket for a cold-shrink joint of a cable according to claim 1, characterized in that the sealing sleeve (2) is made of rubber or silica gel.

5. A waterproof jacket for a cold-shrink joint of a cable according to claim 1, characterized in that the outer edge of the large sealing ring (22) is provided with a chamfer.

6. The waterproof jacket for the cold-shrink joint of the cable according to claim 1, wherein the distance between the small sealing ring (21) and the large sealing ring (22) is larger than or equal to the length of the elastic clamping piece (11).

7. A waterproof jacket for a cold-shrink joint of a cable according to claim 1, characterized in that the inner wall of the tightening cap (3) is funnel-shaped.