CN210490439U

CN210490439U - Three-core intermediate joint of cold-contraction cable

Info

Publication number: CN210490439U
Application number: CN201921686951.3U
Authority: CN
Inventors: 邵奇慧; 黄有兵
Original assignee: Changyuan Power Technology Co Ltd
Current assignee: Changyuan Power Technology Co Ltd
Priority date: 2019-10-10
Filing date: 2019-10-10
Publication date: 2020-05-08
Anticipated expiration: 2029-10-10

Abstract

The utility model discloses a shrinkage cable three-core intermediate head, including upper cover, internal shield layer, outer shielding layer and waterproof layer, the bottom edge of upper cover is fixed with butt joint piece, all install the assistant bar on the inner wall of upper cover and lower cover, and be fixed with the spring between the top edge of assistant bar and the inner wall of upper cover and lower cover, the limit end of upper cover and lower cover all is connected with the fixed strip, and the outside of upper cover is fixed with the baffle, all be provided with the insulating layer in upper cover and the lower cover, and the internal shield layer and the outer shielding layer have been laid respectively to the inside and outside both sides of insulating layer to be provided with the waterproof layer on the outer shielding layer, the both ends of upper cover and lower cover all overlap and are equipped with the end lag, and are provided with the cable in the end lag, and the cable runs through in the inside of upper cover and lower cover. This three-core intermediate head of shrinkage cable can fix the cable junction of different specifications, possesses good waterproof performance simultaneously.

Description

Three-core intermediate joint of cold-contraction cable

Technical Field

The utility model relates to a shrinkage cable technical field specifically is three core intermediate head of shrinkage cable.

Background

The cold contraction cable is an accessory with elasticity and pre-expansion performance in the cable use, is arranged at the end part of the three-core cable to protect the three-core cable, and meanwhile, the urban cable is erected, the connection and the protection between cable ends are involved, the intermediate joint is usually arranged in the use process to butt joint the cable ends, however, the existing intermediate joint has the following problems in the use process:

the intermediate head is to the butt joint installation of cable, for improving utilization efficiency, needs to dock fixedly to the cable of different specifications, and the high altitude is arranged in to the cable simultaneously, can directly receive rainwater invasion and attack usually, and the use of intermediate head needs to possess sealed waterproof performance, avoids the rainwater to permeate inside, influences the normal use of cable.

Aiming at the problems, innovative design is urgently needed on the basis of the original intermediate joint.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a shrinkage cable three-core intermediate head to solve above-mentioned background art and propose current intermediate head, need dock fixedly to the cable of different specifications, need possess the problem of sealing waterproof performance simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: three-core intermediate head of shrinkage cable, including upper cover, internal shield layer, external shield layer and waterproof layer, the bottom edge of upper cover is fixed with the butt joint piece, and the butt joint piece is located the butt joint inslot to the top edge of lower cover is seted up in the butt joint groove, all install the auxiliary strip on the inner wall of upper cover and lower cover, and be fixed with the spring between the top edge of auxiliary strip and the inner wall of upper cover and lower cover, the limit end of upper cover and lower cover all is connected with the fixed strip, and the outside of upper cover is fixed with the baffle, all be provided with the insulating layer in upper cover and the lower cover, and the internal shield layer and the external shield layer have been laid respectively to the inside and outside both sides of insulating layer to be provided with the waterproof layer on the external shield layer, the both ends of upper cover and lower cover all are overlapped and are equipped with the end lag, and are provided with the cable in the end lag to the cable runs through in the inside of.

Preferably, the butt-joint blocks are mutually clamped with the butt-joint grooves, and 2 butt-joint blocks are symmetrically arranged around the central axis of the upper cover.

Preferably, the auxiliary strips are connected with the upper cover and the lower cover through shafts, and 2 groups of the auxiliary strips are arranged.

Preferably, the baffle is designed to be of an arc structure, and the end part of the baffle is positioned outside the end part of the fixing strip.

Preferably, the end protective sleeve is of a conical structure, and the inner diameter of the end protective sleeve is equal to the outer diameters of the upper cover and the lower cover.

Compared with the prior art, the beneficial effects of the utility model are that: the three-core middle joint of the cold-contraction cable;

1. the upper cover and the lower cover are convenient to butt joint and mount by mutually clamping the two butt joint blocks and the butt joint grooves, the cable is sleeved and fixed by the upper cover and the lower cover, and meanwhile, the auxiliary strip is connected with the upper cover and the lower cover through shafts, so that the auxiliary strip can rotate in the upper cover and the lower cover, and the cables with different specifications are fixed by matching with the use of springs;

2. the baffle through setting up is arc structural design, and the tip of baffle is located the outside of fixed strip tip, and the internal diameter of the end lag tip of toper structure equals the external diameter of upper cover and lower cover simultaneously, can carry out water proof through baffle and end lag to the outside and both ends of upper cover and lower cover, avoids the water stain infiltration to advance inside.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is a schematic side sectional view of the present invention;

FIG. 3 is a schematic view of the inner wall structure of the upper cover of the present invention;

fig. 4 is the schematic view of the three-dimensional structure of the end protection cover of the present invention.

In the figure: 1. an upper cover; 2. a butt joint block; 3. a butt joint groove; 4. a lower cover; 5. an auxiliary bar; 6. a spring; 7. a fixing strip; 8. a baffle plate; 9. an insulating layer; 10. an inner shield layer; 11. an outer shield layer; 12. a waterproof layer; 13. an end protective sleeve; 14. a cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a three-core middle joint of a cold-contraction cable comprises an upper cover 1, a butt joint block 2, a butt joint groove 3, a lower cover 4, an auxiliary strip 5, a spring 6, a fixing strip 7, a baffle plate 8, an insulating layer 9, an inner shielding layer 10, an outer shielding layer 11, a waterproof layer 12, an end protective sleeve 13 and a cable 14, wherein the butt joint block 2 is fixed at the bottom edge of the upper cover 1, the butt joint block 2 is positioned in the butt joint groove 3, the butt joint groove 3 is arranged at the top edge of the lower cover 4, the auxiliary strip 5 is arranged on the inner walls of the upper cover 1 and the lower cover 4, the spring 6 is fixed between the top edge of the auxiliary strip 5 and the inner walls of the upper cover 1 and the lower cover 4, the edge ends of the upper cover 1 and the lower cover 4 are both connected with the fixing strip 7, the baffle plate 8 is fixed on the outer side of the upper cover 1, the insulating layer 9 is arranged in the upper cover 1 and the lower cover 4, the inner shielding layer 10 and the, a waterproof layer 12 is arranged on the outer shielding layer 11, end protective sleeves 13 are sleeved at two ends of the upper cover 1 and the lower cover 4, cables 14 are arranged in the end protective sleeves 13, and the cables 14 penetrate through the inner parts of the upper cover 1 and the lower cover 4;

the butt joint blocks 2 are mutually clamped with the

butt joint grooves

3, 2 butt joint blocks 2 are symmetrically arranged about the central axis of the upper cover 1, the butt joint blocks 2 are clamped with the butt joint grooves 3, the upper cover 1 and the lower cover 4 are in butt joint installation, the use of the fixing strips 7 is matched, and the butt joint positions of cables are fixed through the upper cover 1 and the lower cover 4;

the auxiliary strip 5 is connected with the upper cover 1 and the lower cover 4 through shafts, 2 groups of auxiliary strips 5 are arranged, when the upper cover 1 and the lower cover 4 are sleeved at the cable butt joint part, the auxiliary strips 5 are in contact with the cables, the auxiliary strips 5 are enabled to adapt to cables of different specifications through rotation of the auxiliary strips 5 in the upper cover 1 and the lower cover 4, and the cables are clamped and fixed in cooperation with the use of the springs 6;

the baffle 8 is designed to be of an arc structure, the end part of the baffle 8 is positioned on the outer side of the end part of the fixing strip 7, the upper cover 1 is protected from water conveniently through the baffle 8, rainwater flows out along the baffle 8 of the arc structure and cannot penetrate into the joint of the upper fixing strip 7 and the lower fixing strip 7, and the internal cable is protected from water;

end lag 13 is the toper structure, and the internal diameter of end lag 13 tip equals the external diameter of upper cover 1 and lower cover 4, conveniently reinforces the processing through end lag 13 to the both ends of upper cover 1 and lower cover 4, can implement sealed protection to the both ends of upper cover 1 and lower cover 4 simultaneously.

The working principle is as follows: when the three-core middle joint of the cold-contraction cable is used, firstly, the end protective sleeve 13 in the figure 4 is sleeved on the two corresponding sections of cables 14, then, as shown in fig. 1-2, the upper cover 1 and the lower cover 4 are sleeved at the joint of the cable 14, so that the butt-joint block 2 at the bottom edge of the upper cover 1 is clamped with the butt-joint groove 3 at the top edge of the lower cover 4, then the fixing strips 7 on the outer sides of the upper cover 1 and the lower cover 4 are fixedly connected from bottom to top through fastening bolts to complete the butt joint installation of the upper cover 1 and the lower cover 4, meanwhile, the auxiliary strips 5 on the inner walls of the upper cover 1 and the lower cover 4 are contacted with the cable 14 and are influenced by the cable 14, the auxiliary strips 5 rotate on the inner walls of the upper cover 1 and the lower cover 4, and the cable 14 is clamped and fixed through the auxiliary strips 5 in cooperation with the use of the springs 6, then, the end protective sleeves 13 are sleeved at the two ends of the upper cover 1 and the lower cover 4 to complete the integral installation;

when the rain-proof rain-.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. Three core intermediate head of shrinkage cable, including upper cover (1), internal shield layer (10), outer shielding layer (11) and waterproof layer (12), its characterized in that: the butt joint block (2) is fixed at the bottom edge of the upper cover (1), the butt joint block (2) is located in the butt joint groove (3), the butt joint groove (3) is arranged at the top edge of the lower cover (4), auxiliary strips (5) are arranged on the inner walls of the upper cover (1) and the lower cover (4), springs (6) are fixed between the top edges of the auxiliary strips (5) and the inner walls of the upper cover (1) and the lower cover (4), fixing strips (7) are connected to the edge ends of the upper cover (1) and the lower cover (4), a baffle (8) is fixed on the outer side of the upper cover (1), insulating layers (9) are arranged in the upper cover (1) and the lower cover (4), inner shielding layers (10) and outer shielding layers (11) are respectively paved on the inner side and the outer side of the insulating layers (9), a waterproof layer (12) is arranged on the outer shielding layers (11), and protective sleeves (13) are respectively sleeved at the two ends of the upper cover (1) and the lower cover (4), and a cable (14) is arranged in the end protective sleeve (13), and the cable (14) penetrates through the inner parts of the upper cover (1) and the lower cover (4).

2. The cold shrink cable three-core intermediate joint as set forth in claim 1, wherein: butt joint piece (2) and butt joint groove (3) between mutual block, and butt joint piece (2) are provided with 2 about the central axis symmetry of upper cover (1).

3. The cold shrink cable three-core intermediate joint as set forth in claim 1, wherein: the auxiliary strips (5) are connected with the upper cover (1) and the lower cover (4) through shafts, and 2 groups of the auxiliary strips (5) are arranged.

4. The cold shrink cable three-core intermediate joint as set forth in claim 1, wherein: baffle (8) are the design of arc structure, and the tip of baffle (8) is located the outside of fixed strip (7) tip.

5. The cold shrink cable three-core intermediate joint as set forth in claim 1, wherein: the end protective sleeve (13) is of a conical structure, and the inner diameter of the end protective sleeve (13) is equal to the outer diameters of the upper cover (1) and the lower cover (4).