CN215419344U

CN215419344U - Single-core high-voltage cable traction head

Info

Publication number: CN215419344U
Application number: CN202121373799.0U
Authority: CN
Inventors: 魏孟川; 魏璐璐; 魏龙
Original assignee: Shenpeng Cable Co ltd
Current assignee: Shenpeng Cable Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-01-04
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a single-core high-voltage cable traction head which comprises a crimping pipe and a conical sleeve, wherein the conical sleeve is arranged on the outer side of the crimping pipe, a traction assembly is arranged at one end of the crimping pipe, a plurality of groups of guide grooves are arranged in the middle of the crimping pipe in a surrounding mode, support rods are arranged on the inner sides of the guide grooves along the radial direction of the crimping pipe, an arc pressing piece is arranged at one end, extending into the crimping pipe, of each support rod, and a top block is arranged at one end of the outer side of each support rod. Has the advantages that: the cable clamping device is suitable for cables with different sizes by arranging a plurality of groups of pressing sheets serving as cable clamping structures and adjusting the positions of the plurality of groups of pressing sheets, and is high in universality.

Description

Single-core high-voltage cable traction head

Technical Field

The utility model relates to the field of high-voltage cables, in particular to a single-core high-voltage cable drawing head.

Background

The cable traction head is a common auxiliary accessory in the cable laying process and is used as a cable traction structure to drive the cable to expand and move to the laying position.

The applicant finds that at least the following technical problems exist in the prior art: because the cable size is numerous in kind, the crimping pipe size of the cable traction head that uses at present can't be adjusted, consequently not unidimensional cable need select not unidimensional traction head to carry out the crimping fixed, and it is inconvenient to use, and the practicality is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems, and provides a single-core high-voltage cable drawing head which is provided with a plurality of groups of pressing sheets serving as a cable clamping structure, is suitable for cables with different sizes by adjusting the positions of the plurality of groups of pressing sheets, and has strong universality, and details are described in the following.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a single-core high-voltage cable traction head which comprises a crimping pipe and a conical sleeve, wherein the conical sleeve is arranged on the outer side of the crimping pipe, and one end of the crimping pipe is provided with a traction assembly;

crimping pipe middle part is encircleed and is provided with the multiunit guide way, the multiunit the guide way inboard is all followed the crimping pipe radially is provided with the vaulting pole, the vaulting pole stretches into the intraductal one end of crimping is provided with the arc preforming, vaulting pole outside one end is provided with the kicking block, the kicking block with between the crimping pipe the vaulting pole outside cover is equipped with first spring, the toper cover inboard is the bell mouth, the kicking block outside is the laminating the inclined plane of bell mouth inner wall, the toper cover is kept away from kicking block one side is provided with the carousel, the carousel cover is located the crimping pipe outside and with this crimping pipe screw-thread fit.

When the traction head is required to be connected with the end part of a cable, the end part of the cable penetrates among a plurality of groups of pressing sheets along an opening at one end of the outer side of a crimping pipe, then a rotary table is rotated to a position close to a top block, and a conical sleeve is driven by the rotary table to move to one side close to the top block in a rotating manner, so that the top block and a support rod are pressed towards the inner side of the crimping pipe under the pushing action of the conical sleeve, and the pressing sheets at one ends of the inner sides of a plurality of groups of support rods jointly form a circular hoop clamp to clamp the outer side of the cable, so that the connection process of the traction head and the cable is completed; the pull ring outside the pull rod is connected with external cable traction equipment, and in the cable traction process, when the cable is straightened and tensioned in the moment, the reverse tension force received by the pull rod and the mounting rack is buffered through the second spring, so that the defect that the cable is straightened through the pull head and the external traction equipment and is subjected to the overlarge and easy loosening of the stress in the moment is avoided.

Preferably, a plurality of groups of anti-slip grooves are arranged around the outer circumference of the rotary disc, and the rotary disc is welded and fixed with the conical sleeve.

Preferably, one side of the crimping pipe, which is close to the traction assembly, is provided with a convex block, the convex block is of a cylindrical structure, and the outer side of the convex block is provided with an external thread.

Preferably, the traction assembly comprises a connecting sleeve arranged on the outer side of the protruding block, the connecting sleeve is in threaded fit with the protruding block, and a mounting frame is arranged on one side, far away from the protruding block, of the connecting sleeve.

Preferably, the mounting bracket is of a rectangular square frame structure, a pull rod transversely penetrates through the middle of one side, far away from the connecting sleeve, of the mounting bracket, the pull rod stretches into one end of the inner side of the mounting bracket, a limiting disc is arranged at one side, far away from the connecting sleeve, of the mounting bracket, and two groups of stop blocks are symmetrically arranged on the upper side and the lower side of the inner portion of the mounting bracket.

Preferably, a second spring is sleeved outside the pull rod on the inner side of the mounting frame, and a pull ring is arranged at one end, extending out of the mounting frame, of the pull rod.

Has the advantages that: the cable clamping device is suitable for cables with different sizes by arranging a plurality of groups of pressing sheets serving as cable clamping structures and adjusting the positions of the plurality of groups of pressing sheets, and is high in universality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view structural diagram of the present invention;

FIG. 2 is a perspective view of the present invention;

FIG. 3 is a front sectional view of the present invention;

fig. 4 is a perspective view showing another aspect of the present invention.

The reference numerals are explained below:

1. crimping the tube; 101. a guide groove; 102. a stay bar; 103. tabletting; 104. a top block; 105. a first spring; 106. a bump; 2. a conical sleeve; 201. a turntable; 3. a traction assembly; 301. connecting sleeves; 302. a mounting frame; 302a, a stop block; 303. a pull rod; 304. a limiting disc; 305. a second spring; 306. and (4) a pull ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1-4, the utility model provides a single-core high-voltage cable traction head, which comprises a crimping pipe 1 and a conical sleeve 2, wherein the conical sleeve 2 is arranged outside the crimping pipe 1, and one end of the crimping pipe 1 is provided with a traction assembly 3;

the middle of the crimping pipe 1 is provided with a plurality of groups of guide grooves 101 in a surrounding manner, the inner sides of the plurality of groups of guide grooves 101 are provided with support rods 102 along the radial direction of the crimping pipe 1, the support rods 102 extend into the crimping pipe 1, one ends of the outer sides of the support rods 102 are provided with ejector blocks 104, the outer sides of the support rods 102 between the ejector blocks 104 and the crimping pipe 1 are provided with first springs 105 in a sleeved manner, the inner sides of the conical sleeves 2 are conical holes, the outer sides of the ejector blocks 104 are inclined planes attached to the inner walls of the conical holes, one sides of the conical sleeves 2, far away from the ejector blocks 104, are provided with rotary tables 201, the rotary tables 201 are sleeved on the outer sides of the crimping pipe 1 and are in threaded fit with the crimping pipe 1, the outer circumferential sides of the rotary tables 201 are provided with a plurality of groups of anti-slip grooves, and the rotary tables 201 are welded and fixed with the conical sleeves 2.

As an optional implementation manner, the crimping pipe 1 is provided with a bump 106 near one side of the traction assembly 3, the bump 106 is of a cylindrical structure, and an external thread is provided on the outer side of the bump 106, the traction assembly 3 includes a connection sleeve 301 disposed on the outer side of the bump 106, the connection sleeve 301 is in threaded fit with the bump 106, the connection sleeve 301 is provided with a mounting frame 302 far from one side of the bump 106, the mounting frame 302 is of a rectangular square frame structure, a pull rod 303 transversely penetrates through the middle of one side of the mounting frame 302 far from the connection sleeve 301, the pull rod 303 extends into one end of the inner side of the mounting frame 302 and is provided with a limiting disc 304, two sets of stoppers 302a are symmetrically provided on the upper side and the lower side of the interior of the mounting frame 302 far from the connection sleeve 301, a second spring 305 is sleeved on the exterior of the pull rod 303 inside the mounting frame 302, and a pull ring 306 is provided on one end of the pull rod 303, which extends out of the mounting frame 302.

By adopting the structure, when the traction head is required to be connected with the end part of the cable, the end part of the cable penetrates among the plurality of pressing sheets 103 along the opening at one end outside the compression joint pipe 1, then the turntable 201 is rotated to the position close to the ejector block 104, the conical sleeve 2 is driven by the turntable 201 to move to the side close to the ejector block 104 in a rotating manner, so that the ejector block 104 and the stay bar 102 are pressed towards the inner side of the compression joint pipe 1 under the pushing action of the conical sleeve 2, an annular hoop clamp is formed by the pressing sheets 103 at one end inside the plurality of stay bars 102 together to clamp the outer side of the cable, and the connection process of the traction head and the cable is completed; the pull ring 306 on the outer side of the pull rod 303 is connected with external cable pulling equipment, and in the cable pulling process, when a cable is straightened and tensioned, the reverse pulling force on the pull rod 303 and the mounting rack 302 is buffered through the second spring 305, so that the defect that the cable is too large in stress and easy to loosen at the straightening moment due to the fact that the cable is in hard link with the external pulling equipment through a pulling head is overcome;

set up the preforming 103 that the multiunit is as cable clamping structure, use in order being applicable to not unidimensional cable through adjusting multiunit preforming 103 position, the commonality is strong, and pull 3 inside second springs 305 that sets up and support spacing dish 304 to cushion cable and external tractive equipment hookup location, avoid the taut crimping pipe 1 in the twinkling of an eye of cable to break away from with cable junction position, connect more stably, the practicality is strong.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a single core high tension cable drawing head which characterized in that: the device comprises a crimping pipe (1) and a conical sleeve (2), wherein the conical sleeve (2) is arranged on the outer side of the crimping pipe (1), and one end of the crimping pipe (1) is provided with a traction assembly (3);

crimping pipe (1) middle part is encircleed and is provided with multiunit guide way (101), multiunit guide way (101) inboard is all followed crimping pipe (1) radially is provided with vaulting pole (102), vaulting pole (102) stretch into one end is provided with arc preforming (103) in crimping pipe (1), vaulting pole (102) outside one end is provided with kicking block (104), kicking block (104) with between crimping pipe (1) vaulting pole (102) outside cover is equipped with first spring (105), taper sleeve (2) inboard is the bell mouth, the kicking block (104) outside is for the laminating the inclined plane of bell mouth inner wall, taper sleeve (2) are kept away from kicking block (104) one side is provided with carousel (201), carousel (201) cover is located the crimping pipe (1) outside and with this crimping pipe (1) screw-thread fit.

2. The single-core high-voltage cable drawing head according to claim 1, characterized in that: the outer circumference side of the rotary disc (201) is provided with a plurality of groups of anti-slip grooves in a surrounding mode, and the rotary disc (201) and the conical sleeve (2) are fixed in a welding mode.

3. The single-core high-voltage cable drawing head according to claim 1, characterized in that: a convex block (106) is arranged on one side, close to the traction assembly (3), of the crimping pipe (1), the convex block (106) is of a cylindrical structure, and an external thread is arranged on the outer side of the convex block (106).

4. The single-core high-voltage cable pulling head according to claim 3, characterized in that: draw subassembly (3) including set up in adapter sleeve (301) in the lug (106) outside, adapter sleeve (301) with lug (106) screw-thread fit, adapter sleeve (301) are kept away from lug (106) one side is provided with mounting bracket (302).

5. The single-core high-voltage cable pulling head according to claim 4, characterized in that: mounting bracket (302) are rectangle square frame structure, and this mounting bracket (302) are kept away from horizontal through-going in middle part of adapter sleeve (301) one side has pull rod (303), pull rod (303) stretch into mounting bracket (302) inboard one end is provided with spacing dish (304), spacing dish (304) are kept away from adapter sleeve (301) one side mounting bracket (302) inside bilateral symmetry is provided with two sets of dog (302a) from top to bottom.

6. The single-core high-voltage cable pulling head according to claim 5, characterized in that: the outside cover of pull rod (303) that mounting bracket (302) is inboard is equipped with second spring (305), pull rod (303) stretch out mounting bracket (302) one end is provided with pull ring (306).