CN219535600U - Cold shrinkage type indoor terminal connector - Google Patents

Abstract

The utility model relates to the field of cable connectors, in particular to a cold-shrink indoor terminal connector. The technical scheme includes that the outer sheath comprises a front insert installed at one end of the outer sheath, the front insert is composed of a built-in positioning cylinder and two semicircular lining boxes, a built-in plastic pipe is fixedly installed at one end, far away from the front insert, of the inner part of the outer sheath, a sealing pipe is installed on the built-in plastic pipe through threads, and a built-in support frame structure composed of a plurality of support rings is movably installed in the outer sheath. The utility model has the beneficial effects that: through a plurality of support rings that connect as an organic wholely, can form lining support structure inside the oversheath, can play the guard action to the wire core joint part to built-in locating cylinder and built-in plastic tubing are installed respectively to the both ends opening of oversheath, can consolidate the position that cable and oversheath are connected, when the oversheath receives pressure, can reduce the wire core joint and break away from the probability of connection because of receiving the extrusion, have improved the fastness that the cable is connected.

Description

Cold shrinkage type indoor terminal connector

Technical Field

The utility model relates to the field of cable connectors, in particular to a cold-shrink indoor terminal connector.

Background

Indoor cables are mostly laid overhead and buried, so the water and moisture resistance of the termination joints for connecting cables is of paramount importance. Especially shrinkage formula terminal joint, the joint part is by the oversheath of rubber material as protection architecture to insert inside lining flaring component in oversheath port department, when needs peg graft cable tip on the oversheath, can pull out inside lining flaring component earlier, quick with cable tip insert oversheath open end, the oversheath of rubber gradually resumes the original state under the elastic action this moment, the opening of expansion contracts gradually, can carry out closely centre gripping to the cable, not only can let two sections cables firmly connect as an organic wholely, and can let the inside cladding of sinle silk junction part at the oversheath, can play sealed waterproof effect to joint part.

In the practical use process of the traditional cold-shrink indoor terminal connector, most of the traditional cold-shrink indoor terminal connector adopts a rubber outer sheath with a simple structure, a lining flaring member is inserted into openings at two ends of the outer sheath, and the end part of a cable can be quickly inserted into the outer sheath by pulling out the lining flaring member, so that the operation is convenient. However, as the outer sheath made of rubber is of a soft structure, the inner lining reinforcing structure is not arranged in the outer sheath and at the end part interface, when the outer sheath is pressed, the wire core joint is easy to squeeze, the probability of disconnection of the wire core joint is increased, and the firmness of connection of the cable is greatly reduced; in view of this, we propose a cold-shrink indoor terminal fitting that can increase the structural strength of the outer jacket of the fitting and thereby improve the connection robustness of the cable.

Disclosure of Invention

The utility model aims at solving the problems in the background technology and provides a cold-shrink indoor terminal connector which can increase the structural strength of an outer sheath of the connector and improve the connection firmness of a cable.

The technical scheme of the utility model is as follows: the utility model provides an indoor terminal joint of shrinkage, includes the oversheath, the one end fixed mounting of oversheath has leading plug-in components, leading plug-in components comprises built-in positioning tube and two semicircular lining boxes, built-in positioning tube fixes on the inner wall of oversheath, two semicircular lining boxes all peg graft on built-in positioning tube and carry out the expanding support to the front end opening of oversheath, the inside one end fixed mounting who just keeps away from leading plug-in components of oversheath has built-in plastic tubing, built-in plastic tubing is last to be threaded to install and seals the pipe, it has waterproof adhesive tape to twine on the outer wall of sealing the pipe, waterproof adhesive tape closely centre gripping is in the gap between sealing pipe and oversheath, movable mounting has been constituteed by a plurality of holding rings's built-in support frame structure in the oversheath, built-in support frame structure centre gripping is in the position between built-in positioning tube and built-in plastic tubing.

Preferably, each bottom of the semicircular lining box is fixedly provided with an inserting rod, the top end of the built-in positioning cylinder is provided with two slots, each bottom of the inserting rod is inserted into the matched slot and is connected with the matched slot in a clamping manner, and the semicircular lining box is conveniently inserted into the built-in positioning cylinder by adopting a clamping installation structure and is convenient to take down.

Preferably, each semicircular lining box is provided with a semicircular opening in an opening manner on the bottom plate, and the two semicircular openings are butted to form a cable penetrating opening with a circular structure, so that the cable can penetrate through the cable penetrating opening with the circular structure, and then the cable can be smoothly inserted into the outer sheath.

Preferably, each outer wall of the support ring is in close contact with the inner wall of the outer sheath, a plurality of connecting rods are fixedly installed between every two adjacent support rings, and the support rings are ensured to be firmly connected into a whole, so that the support rings are conveniently installed inside the outer sheath.

Preferably, the inside fixed mounting of sealing the pipe has the rubber seal piece, the last excavation of rubber seal piece has the auto-lock to wear the mouth, can reduce the opening size of sealing the pipe through the rubber seal piece to have elastic rubber seal piece can let auto-lock wear mouthful inner wall and cable outer wall closely laminate.

Preferably, an inner thread groove is formed in the inner wall of the built-in plastic pipe, an external thread opening is formed in the top end of the sealing pipe, the external thread opening is in threaded connection with the inner thread groove, and a threaded connection structure is adopted, so that the sealing pipe can be conveniently assembled on the built-in plastic pipe.

Preferably, a plurality of rain skirts are fixedly mounted on the outer wall of the outer sheath, each rain skirt is integrally formed with the outer sheath, a shade can be formed between the upper portions of the sealing pipes through the rain skirts, when the outer sheath is in a vertical overhead laying state, the water accumulation wall flow formed by the adhesion of moisture can be prevented, and the water seepage probability of the sealing pipes is reduced.

Compared with the prior art, the utility model has the following beneficial technical effects: through a plurality of support rings that connect as an organic wholely, can form lining support structure inside the oversheath, can play the guard action to the wire core joint part to built-in locating cylinder and built-in plastic tubing are installed respectively to the both ends opening of oversheath, can consolidate the position that cable and oversheath are connected, when the oversheath receives pressure, can reduce the wire core joint and break away from the probability of connection because of receiving the extrusion, improved the fastness that the cable is connected greatly.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the front insert structure of the present utility model;

FIG. 3 is a top view of a semicircular liner box of the present utility model;

fig. 4 is a schematic diagram of the assembly of the sealing tube and the built-in plastic tube of the present utility model.

Reference numerals: 1. an outer sheath; 2. a front insert; 21. a positioning cylinder is arranged in the inner part; 22. a semicircular liner box; 23. a rod; 24. a slot; 25. a semicircular opening; 3. a support ring; 31. a connecting rod; 4. rain skirt; 5. a plastic pipe is arranged in the plastic pipe; 51. an internal thread groove; 6. sealing the pipe; 61. a rubber sealing sheet; 62. self-locking through hole; 63. an external thread opening; 7. waterproof adhesive tape.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Examples

As shown in fig. 1-4, the cold-shrink indoor terminal connector provided by the utility model comprises an outer sheath 1, wherein a front insert 2 is inserted into the top opening of the outer sheath 1, the front insert 2 consists of an inner positioning cylinder 21 fixed on the inner wall of the outer sheath 1 and two semicircular lining boxes 22 which are clamped and installed on the inner positioning cylinder 21, and at the moment, the two semicircular lining boxes 22 can expand the top opening of the outer sheath 1 outwards, so that the caliber of the top opening of the outer sheath 1 is increased, and a cable is convenient to insert into the outer sheath 1; the bottom end opening of the outer sheath 1 is fixedly provided with a built-in plastic pipe 5, the bottom end opening of the built-in plastic pipe 5 is provided with a sealing pipe 6 in a threaded manner, and an external thread port 63 at the top of the sealing pipe 6 is inserted into the built-in plastic pipe 5 and is in threaded connection with an internal thread groove 51 on the inner wall of the built-in plastic pipe 5, so that the sealing pipe 6 is convenient to disassemble and assemble; the waterproof adhesive tape 7 is wound on the outer wall of the sealing pipe 6, and a gap between the sealing pipe 6 and the outer sheath 1 can be sealed through the waterproof adhesive tape 7, so that water inflow at the sealing pipe 6 is prevented, and the waterproof effect is improved; the inner side of the outer sheath 1 is internally provided with a plurality of support rings 3, each support ring 3 is in close contact with the inner wall of the outer sheath 1, a plurality of connecting rods 31 are welded between two adjacent support rings 3, the support rings 3 are fixed together to form a built-in support frame structure, the built-in support frame structure is inserted into the outer sheath 1, the built-in support frame structure is convenient to install, at the moment, the built-in support frame structure can form a lining support structure on the inner side of the outer sheath 1, and the structural strength of the outer sheath 1 can be enhanced.

Furthermore, the bottom of each semicircular lining box 22 is welded with an inserting rod 23, the top of the built-in positioning cylinder 21 is cut with two inserting grooves 24, the bottom end of the inserting rod 23 is inserted into the inserting grooves 24, and the semicircular lining boxes 22 can be stably installed on the built-in positioning cylinder 21 to prevent the semicircular lining boxes 22 from falling off from the top end opening of the outer sheath 1; each semicircular lining box 22 is provided with a semicircular opening 25 on the bottom plate, after the two semicircular lining boxes 22 are spliced together, the two semicircular openings 25 form a cable penetrating opening with a circular structure, one end of the cable penetrates through the penetrating opening to be inserted into the outer sheath 1, and the two semicircular lining boxes 22 are relatively independent and can be taken down from the built-in positioning cylinder 21, so that after the semicircular lining boxes 22 are taken out from the inner part of the outer sheath 1, the bayonet of the outer sheath 1 made of rubber material is gradually brought into a contracted state, and finally the cable can be stably clamped, so that the firmness of connection between the cable and the outer sheath 1 is improved.

Further, seal pipe 6 inside fixed bonding has rubber seal piece 61, can reduce seal pipe 6 open-ended size through rubber seal piece 61, pass the auto-lock through-hole 62 of cutting on the rubber seal piece 61 with the one end of cable again, have elastic rubber seal piece 61 can the quick return state, can let the inner wall of auto-lock through-hole 62 closely laminate with the cable outer wall then, not only can improve the fastness that the cable is connected with oversheath 1 to can strengthen its water-proof effects.

In this embodiment, the end of one section of cable is inserted into the front insert 2, and the opening of the top end of the outer sheath 1 is increased under the external expansion of the semicircular lining box 22 installed on the front insert 2, so that the cable is conveniently inserted into the outer sheath 1, and after the semicircular lining box 22 is taken out, the outer sheath 1 enters a contracted recovery state, and finally, the cable can be stably clamped, so that the section of cable can be firmly connected with the outer sheath 1; pulling out the wire core of the cable from the bottom end opening of the outer sheath 1, connecting the wire core of another section of cable with the wire core outside the outer sheath 1, and plugging the wire core connecting part into the outer sheath 1 after the connection is completed; at the moment, the sealing pipe 6 sleeved on the outer wall of the cable in advance is stirred, the sealing pipe 6 and the built-in plastic pipe 5 are connected into a whole through threads, the connection firmness of the cable and the outer sheath 1 can be improved, and the waterproof effect of the cable can be improved; because the inner lining support structure that a plurality of supporting rings 3 are installed inside the outer sheath 1, and the both ends opening part of the outer sheath 1 is reinforced through the built-in positioning cylinder 21 and the built-in plastic pipe 5 respectively, when the outer sheath 1 receives pressure, the extruded probability of the wire core connecting part and the contact part of the cable and the outer sheath 1 can be reduced, the cable and the outer sheath 1 are effectively prevented from being disconnected, the disconnected probability of the wire core connecting part can be reduced, and the firmness of the cable connection is effectively improved.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims (7)

1. Cold-shrink type indoor terminal connector, comprising an outer sheath (1), characterized in that: the utility model discloses a waterproof plastic pipe sealing device for the inner wall of oversheath, including outer sheath (1), front-end plug-in components (2) are fixed to one end of oversheath (1), front-end plug-in components (2) comprise built-in positioning tube (21) and two semicircular lining boxes (22), built-in positioning tube (21) are fixed on the inner wall of oversheath (1), two semicircular lining boxes (22) are all pegged graft on built-in positioning tube (21) and the front end opening of oversheath (1) carries out the expanding support, the one end fixed mounting who just keeps away from front-end plug-in components (2) inside oversheath (1) has built-in plastic pipe (5), threaded mounting has sealing tube (6) on built-in plastic pipe (5), the winding has waterproof adhesive tape (7) on sealing tube (6)'s the outer wall, waterproof adhesive tape (7) closely centre gripping is in sealing the gap between tube (6) and oversheath (1), movable mounting has been by the built-in support frame structure that a plurality of backup rings (3) constitute in oversheath (1), the position between built-in plastic pipe (5).

2. The cold-shrink indoor terminal fitting according to claim 1, wherein an inserting rod (23) is fixedly installed at the bottom end of each semicircular lining box (22), two inserting grooves (24) are cut at the top end of each built-in positioning cylinder (21), and the bottom end of each inserting rod (23) is inserted into the corresponding inserting groove (24) and is in clamping connection with the corresponding inserting groove.

3. A cold-shrink indoor terminal fitting as claimed in claim 2, characterized in that each of the semi-circular inner liner boxes (22) has a semi-circular opening (25) cut into the bottom plate, the two semi-circular openings (25) being butted to form a circular cable entry.

4. Cold-shrink indoor terminal joint as in claim 1, characterized in that the outer wall of each support ring (3) is in close contact with the inner wall of the outer sheath (1), between two adjacent support rings (3) a number of connecting rods (31) are jointly and fixedly mounted.

5. The cold-shrink type indoor terminal fitting according to claim 1, wherein a rubber sealing sheet (61) is fixedly installed inside the sealing tube (6), and a self-locking through hole (62) is cut on the rubber sealing sheet (61).

6. The cold-shrink type indoor terminal fitting according to claim 1, wherein an inner wall of the built-in plastic pipe (5) is provided with an inner thread groove (51), the top end of the sealing pipe (6) is provided with an outer thread opening (63), and the outer thread opening (63) is in threaded connection with the inner thread groove (51).

7. The cold-shrink indoor terminal fitting according to claim 1, wherein a plurality of rain skirts (4) are fixedly mounted on the outer wall of the outer sheath (1), and each rain skirt (4) is integrally formed with the outer sheath (1).