CN115579665B

CN115579665B - Prefabricated branch cable

Info

Publication number: CN115579665B
Application number: CN202211473380.1A
Authority: CN
Inventors: 张霖建; 郭鸿杰
Original assignee: Gongniu Cable Hebei Co ltd
Current assignee: Gongniu Cable Hebei Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-03-10
Anticipated expiration: 2042-11-23
Also published as: CN115579665A

Abstract

The invention discloses a prefabricated branch cable, which relates to the field of branch cables and comprises the following components: the leader cable, the leader cable middle part presss from both sides tight fixed well connecting piece that is provided with, well connecting piece opposite side presss from both sides tightly to be fixed with a cable, leader cable upper end and lower extreme all are provided with the lower clutch, the outside parcel of leader cable has outer fender bracket, well connecting piece is C shape structure, well connecting piece upper portion and lower part opening are the setting of staggering, well connecting piece middle part is provided with well spread groove, the inside both sides of well connecting piece all are provided with the interconnection and connect, the fixed tail commentaries on classics tooth axle that is provided with of interconnection joint afterbody, tail commentaries on classics tooth axle upper portion gear and last rack meshing are connected, through crisscross well spread groove sliding plug between the well connecting piece, make and connect between the connecting piece in a plurality of, promote the commonality and the compatible ability of connecting piece in. The prefabricated branch cable is low in cost, and solves the problems that branch cables with different numbers need corresponding connecting pieces, the compatibility of accessories is poor, and the cost is high.

Description

Prefabricated branch cable

Technical Field

The invention relates to the technical field of branch cables, in particular to a prefabricated branch cable.

Background

The prefabricated branch cable is a Y-shaped branch cable manufactured in a factory, and through the use of the prefabricated branch cable, the middle of the cable does not need to be jointed by personnel on site, so that the condition of fault points caused by the on-site manufacture of cable joints is reduced, and the prefabricated branch cable is increasingly accepted by the market and widely used.

The existing prefabricated branch cable is of a Y-shaped branched structure, in the butt joint of the branch cable and the main cable, the wire ends of the branch cable and the main cable need to be cleaned in advance of an external insulating protective layer, then the internal metal wires and the connecting pieces of the branch cable and the main cable are clamped and fixed, the cleaning of the external insulating protective layers of the branch cable and the main cable increases the processing procedures, and when a plurality of branch cables are manufactured, the branch cables with different quantities need to correspond to the connecting pieces with different quantities, so that the compatibility of accessories is poor, and the cost is high.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the external insulating protective layers are required to be cleaned in advance at the wire ends of branch cables and main cables, then the internal metal wires and connecting pieces of the branch cables and the main cables are clamped and fixed, the cleaning of the external insulating protective layers of the branch cables and the main cables increases the processing procedures, and when a plurality of branch cables are manufactured, the branch cables with different numbers need the corresponding number of connecting pieces, so that the compatibility of accessories is poor, and the cost is high.

The invention provides a prefabricated branch cable, which specifically comprises: the utility model provides a cable, the leader cable, the tight fixed well connecting piece that is provided with of leader cable middle part clamp, well connecting piece opposite side clamp is fixed with a cable, leader cable upper end and lower extreme all are provided with the lower clutch, the outside parcel of leader cable has outer fender bracket, well connecting piece is C shape structure, well connecting piece upper portion and lower part opening are the setting of staggering, fixed effect when promoting the closure, well connecting piece middle part is provided with well spread groove, the inside both sides of well connecting piece all are provided with the interconnection joint, the fixed tail rotary shaft that is provided with of interconnection joint afterbody, tail rotary shaft upper portion gear and last rack meshing are connected, it is fixed with first supporting spring to go up the rack afterbody, tail rotary shaft and the inboard sliding connection of well connecting piece, first supporting spring head end and well connecting piece fixed connection, when going up the rack and moving to the rear end, the interconnection joint moves around tail rotary shaft to the outside around the tail rotary shaft, the both sides of going up the rack all meshing are connected with tail rotary shaft, it all is provided with the interconnection joint to go up rack lower part both sides, the interconnection joint, rack protrudes to go up rack on the first supporting spring support to connect to the middle part, the interconnection joint is sharp knife face structure, the interconnection joint is the cutter face, the interconnection joint is cut the leader cable outside insulating layer.

Furthermore, the bottom of the lower joint is fixedly provided with a lower connecting guide pillar, the tail end of the lower connecting guide pillar is slidably sleeved with a tail metal ball, the lower part of the lower joint is in threaded connection with an outer fixing cover, the eccentric position outside the outer fixing cover is communicated with a wiring hole, the tail end of the branch cable is provided with the lower joint, the inner electric core of the main cable and the branch cable is fixedly connected with the top end of the lower connecting guide pillar arranged on the main cable and the branch cable, and the inner side of the outer fixing cover is in contact with the tail metal ball.

Furthermore, the outside both sides of well connecting piece are all fixed and are provided with outer balladeur train, outer balladeur train upper portion and lower part are all slided and are provided with smooth buckle, smooth buckle tail end is all fixed and is provided with second supporting spring, second supporting spring tail end and outer balladeur train fixed connection, well spread groove and another department in the connecting piece slide insert, smooth buckle and another department in the connecting piece slide block, second supporting spring supports smooth buckle protrusion to outer balladeur train upper portion and lower part, smooth buckle is the outside and is the similar trapezoidal structure of inclined plane inboard for perpendicular vertical plane.

Furthermore, the internal fixing frame is fixedly arranged inside the outer protection frame, the number of the internal fixing frames is two, the internal fixing frames are symmetrically surrounded on the outer portions of the main cable and the branch cables, the main cable and the branch cables are clamped by screws of the two internal fixing frames, the main cable, the branch cables, the middle connecting pieces and the internal fixing frames are embedded into the groove in the middle of the outer protection frame, the number of the outer protection frame is two, the outer protection frame is symmetrically arranged on two sides of the main cable and the branch cables, and the two outer protection frames are fixed through screws.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the invention, the middle connecting pieces are slidably inserted through the staggered and middle connecting grooves, so that the middle connecting pieces can be connected in a staggered manner, and the inner sides of the sliding buckles are fixed with the outer sides of the other middle connecting pieces, so that the fastening effect among the middle connecting pieces is improved, the connection and the fixation of a plurality of branch cables and the main cable are facilitated, the universality and the compatibility of the middle connecting pieces are improved, the cost is reduced, and the processing difficulty of different numbers of branch cables is reduced.

2. According to the invention, the middle connecting piece is closed by pressing, the middle connecting piece separates the main cable from the insulating layer outside the branch cable through the cutter head of the inner connecting joint, so that additional operation of removing the insulating layer is not needed, the processing procedure of the branch cable is simplified, the production efficiency is improved, the production cost is reduced, and the reserved insulating layer can also enhance the safety of the line.

3. According to the invention, the cutter head of the internal connector separates the main cable and the external insulating layer of the branch cable, after the internal connector enters the main cable and the branch cable, the upper rack is in contact with the external parts of the main cable and the branch cable and slides backwards, the upper rack drives the tail rotating gear shaft to rotate, and after the internal connector is unfolded outwards, the inner arc surface of the internal connector is in contact with the cable, so that the contact area is enlarged, and the stability is improved.

4. According to the invention, other circuits are wound outside the lower connecting guide pillar, and the tail metal ball and the outer fixing cover clamp and fix the circuits wound outside the lower connecting guide pillar, so that the fixing effect is improved, and the wires can be conveniently and quickly connected.

5. The external fixing cover can protect and isolate air from the lower connecting guide post, the paster blocks the wiring hole, the oxidation condition is reduced, additional mechanisms such as a protective sleeve are not needed, and the related cost of the protective sleeve is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

The drawings in the following description relate to only some embodiments of the invention and are not intended to limit the invention.

In the drawings:

fig. 1 is a schematic three-dimensional structure of a prefabricated drop cable of an embodiment of the present invention.

Fig. 2 is a schematic view of a main cable structure of a prefabricated branch cable of an embodiment of the present invention.

Fig. 3 is a schematic structural view of a branch cable and a main cable of a prefabricated branch cable and a middle connector when they are connected according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a middle connection member and a middle connection groove of a prefabricated branch cable in a sliding-in state according to an embodiment of the present invention.

Fig. 5 is a schematic view of an outer carriage half-section of a pre-fabricated drop cable of an embodiment of the present invention.

Fig. 6 is an enlarged schematic view at a of fig. 5 of a prefabricated drop cable of an embodiment of the present invention.

Fig. 7 is a schematic half-section view of an external fixing cover of a prefabricated branch cable according to an embodiment of the invention.

Fig. 8 is a schematic view of an interconnection structure of a prefabricated branch cable according to an embodiment of the present invention.

Fig. 9 is an enlarged schematic view at B of fig. 8 of a prefabricated branch cable according to an embodiment of the present invention.

Fig. 10 is a schematic view of a split configuration of a prefabricated drop cable of an embodiment of the present invention.

List of reference numerals

1. A main cable; 2. a branch cable; 3. a lower joint; 301. the lower connecting guide post; 302. a tail metal ball; 303. an outer fixed cover; 304. a wiring hole; 4. a middle connecting piece; 401. a middle connecting groove; 402. an inner connection joint; 403. a tail rotating gear shaft; 404. an upper rack; 405. a first support spring; 406. an outer carriage; 407. a sliding buckle; 408. a second support spring; 5. an outer fender bracket; 501. an inner fixing frame.

Detailed Description

In order to make the objects, aspects and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise indicated, terms used herein have the ordinary meaning in the art. Like reference symbols in the various drawings indicate like elements.

The embodiment is as follows: please refer to fig. 1 to 10:

the invention provides a prefabricated branch cable, which comprises a main cable 1, wherein a middle connecting piece 4 is fixedly clamped in the middle of the main cable 1, a branch cable 2 is fixedly clamped on the other side of the middle connecting piece 4, lower joints 3 are arranged at the upper end and the lower end of the main cable 1, a lower connecting guide pillar 301 is fixedly arranged at the bottom of the lower joint 3, a tail metal ball 302 is slidably sleeved at the tail end of the lower connecting guide pillar 301, the lower part of the lower joint 3 is in threaded connection with an outer fixing cover 303, a wiring hole 304 is formed in the eccentric position of the outer side of the outer fixing cover 303 in a penetrating manner, a circuit passes through the wiring hole 304, the outer fixing cover 303 is rotated and disassembled when an external wire is connected, the lower connecting guide pillar 301 and the tail metal ball 302 are leaked, other circuits are wound outside the lower connecting guide pillar 301, after the wire is connected, the outer fixing cover 303 is in threaded connection with the lower joint 3 made of an insulating material, the outer fixing cover 303 is in contact with the tail metal ball 302 and moves upwards, the tail metal ball 302 and the outer fixing cover 302 clamps and fixes the outer wound circuit of the lower connecting guide pillar 301, the wire, the fixing effect is improved, and the wire connection is convenient and rapid;

the outer protection frame 5 wraps the outer portion of the main cable 1, the inner fixing frames 501 are fixedly arranged in the outer protection frame 5, the number of the inner fixing frames 501 is two, the inner fixing frames are symmetrically surrounded on the outer portions of the main cable 1 and the branch cables 2, the screws of the two inner fixing frames 501 clamp the main cable 1 and the branch cables 2, the main cable 1, the branch cables 2 and the inner fixing frames 501 are embedded into a groove in the middle of the outer protection frame 5, the outer protection frames 5 are two and are symmetrically arranged on two sides of the main cable 1 and the branch cables 2, the two outer protection frames 5 are fixed through screws, and the outer protection frames 5 and the inner fixing frames 501 made of insulating materials are used for insulating and protecting the main cable 1, the branch cables 2 and the inner connecting members 4;

the middle connecting piece 4 is of a C-shaped structure, the upper opening and the lower opening of the middle connecting piece 4 are arranged in a staggered mode, the fixing effect during closing is improved, the middle connecting groove 401 is arranged in the middle of the middle connecting piece 4, the inner connecting pieces 402 are arranged on two sides inside the middle connecting piece 4, the tail portion of each inner connecting piece 402 is fixedly provided with a tail rotating gear shaft 403, the upper gear of each tail rotating gear shaft 403 is meshed with an upper rack 404, the tail portion of each upper rack 404 is fixedly provided with a first supporting spring 405, the tail rotating gear shafts 403 are rotatably connected with the inner sides of the middle connecting piece 4, the upper racks 404 are slidably connected with the inner sides of the middle connecting piece 4, the tail ends of the first supporting springs 405 are fixedly connected with the middle connecting piece 4, when the upper racks 404 move towards the rear ends, the inner connecting pieces 402 move outwards around the tail rotating gear shafts 403, and the upper racks 404 continue to slide backwards in the clamping process of the middle connecting piece 4, the upper rack 404 drives the tail rotary gear shafts 403 on two sides to rotate, the two tail rotary gear shafts 403 drive the inner connecting joint 402 to expand outwards, the inner arc surface of the inner connecting joint 402 is in contact with a cable, the contact area is enlarged, the stability is improved, the two sides of the upper rack 404 are connected with the tail rotary gear shafts 403 in a meshed mode, the inner connecting joints 402 are arranged on two sides of the lower portion of the upper rack 404, the upper rack 404 is supported by a first supporting spring 405 to protrude to the middle of the inner connecting joint 402, the head end of the inner connecting joint 402 is of a sharp knife face structure, the outer insulating layers of the main cable 1 and the branch cable 2 are cut at the head end of the inner connecting joint 402, extra operation of removing the insulating layers is not needed, the processing procedures of the branch cables are simplified, the production efficiency is improved, the production cost is reduced, and the reserved insulating layers can also enhance the safety of circuits; the cutter head of the interconnection joint 402 separates the main cable 1, after the external insulating layer of the branch cable 2, the interconnection joint 402 enters the main cable 1, after the branch cable 2 is internal, then go up rack 404 and main cable 1, the external contact of branch cable 2, in the process of the middle connecting piece 4 clamping and go up the rack 404 and continue to slide backward, go up the rack 404 and drive the tail pinion 403 of both sides and rotate, two tail pinions 403 drive the interconnection joint 402 and expand outwards, the inboard cambered surface of interconnection joint 402 contacts with the cable, enlarge the contact area, promote stability, middle connecting piece 4 and tail pinion 403 and interconnection joint 402 are electrically conductive metal material and are electrically conductive each other, in another embodiment, the interconnection joint 402 is whole to be the arc structure, the arc surface of circuit more laminates between circuit and the external insulating layer, promote the contact effect and the destruction to the insulating layer, the effect of insulating layer is kept to the maximize, or the interconnection joint 402 increases the length and directly pierces through to the opposite side of insulating layer, promote fixed effect.

When the middle connecting piece 4 and the middle connecting piece 401 are inserted in a sliding manner, the middle connecting piece 4 and the outer inclined planes of the sliding buckle 407 at the upper part and the lower part of the middle connecting piece 401 are in contact with each other, the sliding buckle 407 slides towards the inner side of the outer sliding frame 406 and compresses the second supporting spring 408, after the sliding insertion of the middle connecting piece 4 and the middle connecting piece 401 is completed, the second supporting spring 408 supports the sliding buckle 407 to slide towards the outer side of the sliding bracket 406, the middle connecting piece 407 slides towards the inner side of the outer sliding frame 406 and compresses the second supporting spring 408, the middle connecting piece 4 and the middle connecting piece 401 slide towards the outer side, the sliding buckle 407 slides towards the outer side of the sliding buckle 407, the middle connecting piece 4 and the middle connecting piece 407 slide towards the outer side, the middle connecting piece 4 and the inner vertical plane of the other connecting piece 407 are fastened by the contact between the outer vertical plane of the middle connecting piece 4 and the other vertical connecting piece 407.

Wherein, 2 tail ends of branch cable are provided with lower clutch 3, the inside electric core of main cable 1 and branch cable 2 all with the lower connection guide pillar 301 top fixed connection of 1 end to end of main cable and branch cable 2 tail end, the inboard and tail metal ball 302 contact of external fixation lid 303, through using sticker shutoff wiring hole 304 such as trade mark or quality control, external fixation lid 303 protects and the isolation air connecting guide pillar 301 down, reduce the condition of conductive metal's oxidation, need not mechanisms such as extra protective sheath, reduce the relevant cost of protective sheath.

The specific use mode and function of the embodiment are as follows: the main cable 1 and the branch cables 2 are connected and fixed through the middle connecting piece 4, the middle connecting pieces 4 are staggered up and down, the upper part or the lower part of the middle connecting piece 4 is slidably inserted into the middle connecting groove 401 of the other middle connecting piece 4 and is fixed with the outer side of the other middle connecting piece 4 through the inner side of the sliding buckle 407, the fastening effect between the middle connecting pieces 4 is improved, the middle connecting pieces 4 can be connected in a staggered mode, the connection of the branch cables 2 with different numbers is adapted, the connection and the fixation of the branch cables 2 and the main cable 1 are facilitated, the middle connecting pieces 4 which are adapted to the fixing hole positions of the branch cables 2 with different numbers are not required to be additionally customized, the universality of the middle connecting pieces 4 is improved, the cost is reduced, and the processing difficulty of the branch cables 2 with different numbers is reduced;

after the main cable 1 and the branch cable 2 are sleeved on the inner side of the middle connecting piece 4, the middle connecting piece 4 is pressed by a press to clamp the main cable 1 and the branch cable 2 in a closed manner, the middle connecting piece 4 separates the insulating layers outside the main cable 1 and the branch cable 2 through a sharp tool bit structure at the head end of the inner connecting joint 402, the operation of removing the insulating layers is not needed additionally, the processing procedure of the branch cable is simplified, the production efficiency is improved, the production cost is reduced, and the reserved insulating layers can also enhance the safety of the circuit; after the cutter head of the inner connecting joint 402 separates the outer insulating layers of the main cable 1 and the branch cable 2, the inner connecting joint 402 enters the main cable 1 and the branch cable 2, then the upper rack 404 is in contact with the outer parts of the main cable 1 and the branch cable 2, the upper rack 404 continues to slide backwards in the clamping process of the middle connecting piece 4, the upper rack 404 drives the tail rotating tooth shafts 403 on two sides to rotate, the two tail rotating tooth shafts 403 drive the inner connecting joint 402 to expand outwards, the inner arc surface of the inner connecting joint 402 is in contact with the cable, the contact area is enlarged, the stability is improved, and the middle connecting piece 4, the tail rotating tooth shafts 403 and the inner connecting joint 402 are made of conductive metal materials and are mutually conductive;

when external wiring is conducted, the outer fixing cover 303 rotates and separates, the lower connecting guide pillar 301 and the tail metal ball 302 are leaked, other lines are wound outside the lower connecting guide pillar 301, after wiring is completed, the outer fixing cover 303 is in threaded connection with the lower connector 3 made of insulating materials, the outer fixing cover 303 is in contact with the tail metal ball 302 and moves upwards, the tail metal ball 302 and the outer fixing cover 303 clamp and fix the outer wound lines of the lower connecting guide pillar 301, the fixing effect is improved, and quick wiring is facilitated.

The above description is intended to be illustrative of the present invention and is not intended to limit the scope of the invention, which is defined by the appended claims.

Claims

1. A prefabricated drop cable, comprising: the cable connecting device comprises a main cable (1), a middle connecting piece (4) is fixedly clamped in the middle of the main cable (1), a branch cable (2) is fixedly clamped on the other side of the middle connecting piece (4), lower connectors (3) are arranged at the upper end and the lower end of the main cable (1), an outer protective frame (5) wraps the outer portion of the main cable (1), the middle connecting piece (4) is of a C-shaped structure, openings in the upper portion and the lower portion of the middle connecting piece (4) are arranged in a staggered mode, a middle connecting groove (401) is arranged in the middle of the middle connecting piece (4), inner connectors (402) are arranged on two sides inside the middle connecting piece (4), a tail rotating tooth shaft (403) is fixedly arranged at the tail portion of the inner connector (402), a gear on the tail rotating tooth shaft (403) is meshed with an upper tooth bar (404), a first supporting spring (405) is fixedly arranged at the tail portion of the upper tooth bar (404), the tail rotating tooth shaft (403) is rotatably connected with the inner side of the middle connecting piece (4), the upper tooth bar (404) is slidably connected with the inner side of the middle connecting piece (4), the upper tooth shaft (404), the first supporting spring (405) is fixedly connected with the middle connecting piece (4), when the upper tooth bar (404) moves towards the back, the upper tooth bar (403), the inner connecting tooth shaft (403), the inner connecting piece moves towards the upper tooth shaft (403), two sides, the inner connecting tooth shaft (402), the inner rotating tooth shaft (402) and the inner rotating tooth shaft (402) move around the two rotating tooth bar (402), the inner rotating tooth shaft (402) and the tail rotating tooth bar (402) are both sides, the inner rotating tooth bar (402), the first supporting spring (405) supports the upper rack (404) to protrude to the middle of the inner connecting joint (402), the head end of the inner connecting joint (402) is of a sharp knife face structure, the outer insulating layers of the main cable (1) and the branch cable (2) are cut at the head end of the inner connecting joint (402), and the middle connecting piece (4), the tail rotating gear shaft (403) and the inner connecting joint (402) are made of conductive metal materials and are mutually conductive.

2. A prefabricated drop cable according to claim 1, wherein: outer sliding frames (406) are fixedly arranged on two sides of the outer portion of the middle connecting piece (4), sliding buckles (407) are slidably arranged on the upper portion and the lower portion of each outer sliding frame (406), second supporting springs (408) are fixedly arranged at the tail ends of the sliding buckles (407), and the tail ends of the second supporting springs (408) are fixedly connected with the outer sliding frames (406).

3. A prefabricated drop cable according to claim 1, wherein: the middle connecting groove (401) and the middle connecting piece (4) at the other position are inserted in a sliding mode, the sliding buckle (407) and the middle connecting piece (4) at the other position are clamped in a sliding mode, and the sliding buckle (407) is supported by the second supporting spring (408) to protrude to the upper portion and the lower portion of the outer sliding frame (406).

4. A prefabricated drop cable according to claim 1, wherein: the bottom of the lower joint (3) is fixedly provided with a lower connecting guide post (301), the tail end of the lower connecting guide post (301) is slidably sleeved with a tail metal ball (302), the lower part of the lower joint (3) is in threaded connection with an outer fixing cover (303), and an eccentric position on the outer side of the outer fixing cover (303) is provided with a wiring hole (304) in a penetrating mode.

5. A prefabricated drop cable according to claim 4, wherein: the tail end of the branch cable (2) is provided with a lower connector (3), the inner electric cores of the main cable (1) and the branch cable (2) are fixedly connected with the top ends of lower connecting guide posts (301) arranged on the main cable (1) and the branch cable (2), and the inner side of the outer fixing cover (303) is in contact with a tail metal ball (302).

6. A prefabricated drop cable according to claim 1, wherein: the outer fender bracket (5) is internally and fixedly provided with two inner fixing frames (501), the two inner fixing frames (501) are symmetrically surrounded outside the main cable (1) and the branch cable (2), and the two inner fixing frames (501) clamp the main cable (1) and the branch cable (2) through screws.

7. A prefabricated drop cable according to claim 6, wherein: the groove in the middle of the outer protection frame (5) is embedded with a main cable (1), a branch cable (2), a middle connecting piece (4) and an inner fixing frame (501), the number of the outer protection frames (5) is two, the outer protection frames are symmetrically arranged on two sides of the main cable (1) and the branch cable (2), and the two outer protection frames (5) are fixed through screws.