CN219450434U

CN219450434U - Anti-torsion device for cable

Info

Publication number: CN219450434U
Application number: CN202320081446.6U
Authority: CN
Inventors: 汤亮; 张海良; 顾庆华; 黄冬芳; 谢颖奇
Original assignee: Shanghai Pujiang Cable Co Ltd; Zhejiang Pujiang Cable Co Ltd
Current assignee: Shanghai Pujiang Cable Co Ltd; Zhejiang Pujiang Cable Co Ltd
Priority date: 2023-01-13
Filing date: 2023-01-13
Publication date: 2023-08-01
Anticipated expiration: 2033-01-13

Abstract

The utility model relates to the field of cables, in particular to an anti-torsion device for a cable, which comprises a first limiting block and a second limiting block which are symmetrically arranged, wherein a first limiting groove is formed in one side surface of the first limiting block, which is close to the second limiting block, a second limiting groove is formed in one side surface of the second limiting block, which is close to the first limiting block, and the shapes of the first limiting groove and the second limiting groove correspond to the shape of the cable. According to the utility model, through the arrangement of the first limiting block, the second limiting block and the fixed block, the trend that all the cable strands are mutually far away when the cable is back twisted is prevented, so that the torsion prevention is realized; according to the utility model, through the arrangement of the first limit groove and the second limit groove, the rotation trend of each strand is prevented when the cable is back-twisted, so that the torsion prevention is further realized, and the torsion prevention effect is better.

Description

Anti-torsion device for cable

Technical Field

The utility model relates to the field of cables, in particular to an anti-twisting device for a cable.

Background

The steel wire rope sling has the advantages of flexibility, vibration resistance, high sensitivity and the like, and is widely applied to the fields of suspension bridges, arch bridges, building structures, high-rise buildings and the like. When the steel wire rope is installed and tensioned, after the steel wire rope receives axial force, the steel wire rope generates a back torsion trend due to the elasticity of the steel wire rope, so that the kinked cable is relieved, and the steel wire rope is lengthened. The dimensional change of other structures is caused, the steel wire rope loses most of bearing capacity, the service life of the cable is shortened, and the safety of bridges and buildings is affected.

Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an anti-torsion device for a cable, which is realized by the following technical scheme:

the utility model provides a cable is with preventing turning round device, includes first stopper and second stopper that the symmetry set up, first stopper is close to be provided with first spacing groove on the side of second stopper, the second stopper is close to be provided with the second spacing groove on the side of first stopper, the shape in first spacing groove and second spacing groove corresponds with the shape of cable, still includes two fixed plates, the fixed plate with first stopper and second stopper fixed connection.

The technical scheme is as follows: the first limiting block and the second limiting block are used for being tightly matched with the cable, so that when the cable has a untwisting trend, the outward movement trend of each cable strand can be converted into the rotation trend of the first limiting block and the second limiting block; the fixed plate is used for fixing the first limiting block and the second limiting block together, so that the trend that all the strands are far away from each other is prevented.

The utility model is further provided with: and the fixing plate is also provided with a limiting protrusion, and two side surfaces of the limiting protrusion are respectively contacted with the first limiting block and the second limiting block.

The technical scheme is as follows: the spacing protruding effect that plays spacing to guarantee that the distance between first stopper and the second stopper is a definite value, and then guarantee that first stopper and second stopper can both with cable close contact.

The utility model is further provided with: and a third limiting groove is further formed in one side, close to the first limiting groove, of the limiting protrusion of the fixing plate, and the shape of the third limiting groove corresponds to that of the cable.

The technical scheme is as follows: the third limiting groove is arranged, so that the fixing block can also play a role in preventing torsion of the cable.

The utility model is further provided with: one side of the first limiting block, which is far away from the second limiting block, is provided with a first protection surface, one side of the second limiting block, which is far away from the first limiting block, is provided with a second protection surface, and the first protection surface and the second protection surface are both arc-shaped.

The technical scheme is as follows: the first protection surface and the second protection surface are used for reducing the edges of the first limiting block and the second limiting block, so that the installation and the use are safer; the first protection surface and the second protection surface are arc-shaped, so that the thicknesses of the first limiting block and the second limiting block are not too thin, and the structural strength is guaranteed.

The utility model discloses an anti-torsion device for a cable, which is compared with the prior art:

1. according to the utility model, through the arrangement of the first limiting block, the second limiting block and the fixed block, the trend that all the cable strands are mutually far away when the cable is back twisted is prevented, so that the torsion prevention is realized;

2. according to the utility model, through the arrangement of the first limit groove and the second limit groove, the rotation trend of each strand is prevented when the cable is back-twisted, so that the torsion prevention is further realized, and the torsion prevention effect is better.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a side view of the present utility model;

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

FIG. 4 is a cross-sectional view A-A of the present utility model.

Corresponding part names are indicated by numerals and letters in the drawings: 10-a first limiting block; 101-a first limit groove; 102-a first protective surface; 20-a second limiting block; 201-a second limit groove; 202-a second protective surface; 30-fixing plates; 301-limiting protrusions; 301 a-third limit groove.

Detailed Description

The following describes in detail the examples of the present utility model, which are implemented on the premise of the technical solution of the present utility model, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present utility model is not limited to the following examples.

As shown in fig. 1-4, the anti-twisting device for a cable provided by the utility model comprises a first limiting block 10 and a second limiting block 20 which are symmetrically arranged, wherein a first limiting groove 101 is formed in one side surface of the first limiting block 10, which is close to the second limiting block 20, a second limiting groove 201 is formed in one side surface of the second limiting block 20, which is close to the first limiting block 10, the shapes of the first limiting groove 101 and the second limiting groove 201 correspond to the shape of the cable, and two fixing plates 30 are further included, and the fixing plates 30 are fixedly connected with the first limiting block 10 and the second limiting block 20. Wherein the length of the first limiting block 10 is consistent with the length of the second limiting block 20, and the length of the first limiting block 10 is longer than the length required by twisting the cable by 60 degrees; the length of the fixing plate 30 is consistent with that of the first limiting block 10, and the fixing plate 30 is fixedly connected with the first limiting block 10 and the second limiting block 20 through bolts.

As shown in fig. 1 to 4, in the anti-twisting device for a cable according to the present utility model, the fixing plate 30 is further provided with a limiting protrusion 301, and two side surfaces of the limiting protrusion 301 are respectively contacted with the first limiting block 10 and the second limiting block 20. Wherein, the limit protrusion 301 is disposed at the middle of the fixing plate 30, and the limit protrusion 301 contacts with the cable.

As shown in fig. 1-4, in the anti-twisting device for a cable according to the present utility model, a third limit groove 301a is further disposed on a side of the limit protrusion 301 of the fixing plate 30, which is close to the first limit groove 101, and the shape of the third limit groove 301a corresponds to the shape of the cable.

As shown in fig. 1-4, in the anti-twisting device for a cable according to the present utility model, a first protection surface 102 is disposed on a side of the first limiting block 10 away from the second limiting block 20, a second protection surface 202 is disposed on a side of the second limiting block 20 away from the first limiting block 10, and the first protection surface 102 and the second protection surface 202 are both arc-shaped. Wherein the shape of the first protective surface 102 is identical to the shape of the second protective surface 202.

The working principle of the utility model is as follows:

a) Attaching a first limiting block to the cable, and attaching a first limiting groove to the cable;

b) Attaching the second limiting block to the cable rope, and attaching the first limiting groove to the cable rope;

c) Fixedly connecting the fixed plate with the first limiting block and the second limiting block through bolts;

d) The first limiting block and the second limiting block are respectively contacted with two side surfaces of the limiting protrusion;

e) When the cable has a tendency to untwist, each strand constituting the cable has a tendency to be mutually discrete, and simultaneously has a tendency to move reversely in the rotation direction;

f) The first limiting block and the second limiting block fixed by the fixed plate can limit the discrete trend of each strand;

g) The first limit groove and the second limit groove limit the rotation trend of each strand.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims

1. An anti-twisting device for a cable is characterized in that: including first stopper (10) and second stopper (20) that the symmetry set up, first stopper (10) are close to be provided with first spacing groove (101) on one side of second stopper (20), second stopper (20) are close to be provided with second spacing groove (201) on one side of first stopper (10), the shape of first spacing groove (101) and second spacing groove (201) corresponds with the shape of cable, still include two fixed plates (30), fixed plate (30) with first stopper (10) and second stopper (20) fixed connection.

2. The torsion preventing device for a cable according to claim 1, wherein: and the fixing plate (30) is also provided with a limiting protrusion (301), and two side surfaces of the limiting protrusion (301) are respectively contacted with the first limiting block (10) and the second limiting block (20).

3. The torsion preventing device for a cable according to claim 2, wherein: and a third limit groove (301 a) is further formed in one side, close to the first limit groove (101), of the limit protrusion (301) of the fixing plate (30), and the shape of the third limit groove (301 a) corresponds to that of the cable.

4. A torsion preventing device for a cable according to claim 3, wherein: one side of first stopper (10) keep away from second stopper (20) is provided with first guard surface (102), one side of second stopper (20) keep away from first stopper (10) is provided with second guard surface (202), first guard surface (102) and second guard surface (202) are convex.