CN212934212U

CN212934212U - Anti-twisting cable

Info

Publication number: CN212934212U
Application number: CN202022127141.3U
Authority: CN
Inventors: 杨坤萍
Original assignee: Shenyang Cable Group Co ltd
Current assignee: Shenyang Cable Group Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-04-09
Anticipated expiration: 2030-09-24

Abstract

The utility model discloses an anti-twist cable, including central support, a plurality of cable core and protective sheath, central support has seted up the several and has arranged along circumference equidistance, along axially extended cable core mounting groove, wherein cable core mounting groove and cable core one-to-one, and the intussuseption of cable core mounting groove is filled with flame retardant fiber, the fixed cladding in the outside of central support has the insulating layer, the fixed cover in the outside of insulating layer is equipped with interior spiral steel ring, the fixed cladding in the outside of interior spiral steel ring has the elasticity layer, the fixed cladding in the outside of elasticity layer has fire-retardant layer, the fixed cladding in the outside of fire-retardant layer has the waterproof layer, the fixed cladding in the outside of protective layer has the inoxidizing coating, the fixed cover in the outside of. The utility model discloses a multilayer composite construction, reasonable in design, simple structure has good resistance to compression, waterproof, fire prevention, fire-retardant, antitorque distortion, resistant performance of buckling, has spreading value.

Description

Anti-twisting cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to prevent type of buckling cable.

Background

The cable has power cable, control cable, compensation cable, shielded cable, high temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and so on, they all comprise sub-strand or stranded wire and insulating layer, be used for connecting circuit, electrical apparatus etc. although prior art can realize the normal connection use of cable, the problem that drops can appear in the inside filling protective layer of distortion to the cable when prior art can't avoid using and the cable, the messenger is relatively poor to the protectiveness of cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-twist cable to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anti-twist cable, its structural feature lies in: including central support, a plurality of cable cores and protective sheath, central support has seted up the several and has arranged along circumference equidistance, along axially extended cable core mounting groove, wherein cable core mounting groove and cable core one-to-one, and the intussuseption of cable core mounting groove is filled with flame retardant fiber, the fixed cladding in the outside of central support has the insulating layer, the fixed cladding in the outside of insulating layer is equipped with interior spiral steel ring, the fixed cladding in the outside of interior spiral steel ring has the elasticity layer, the fixed cladding in the outside of elasticity layer has fire-retardant layer, the fixed cladding in the outside of fire-retardant layer has the waterproof layer, the fixed cladding in the outside of waterproof layer has the inoxidizing coating, the fixed cover in.

Preferably, the cross section of the central support is in a regular polygon or a circle, and a lightening hole is formed in the center of the central support.

Preferably, the lightening holes are filled with polyurethane foam filler.

Preferably, a fireproof filler is filled between the central support and the insulating layer.

Preferably, the cable core mounting groove is triangular in cross section.

Preferably, the inner spiral steel ring is made of spring steel and is spirally wound on the outer side of the insulating layer.

Preferably, the outer spiral steel ring is made of spring steel and is spirally wound on the outer side of the protective layer.

Compared with the prior art, the utility model discloses a multilayer composite construction, reasonable in design, simple structure has good resistance to compression, waterproof, fire prevention, fire-retardant, antitorque distortion, resistant performance of buckling, has spreading value.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the figure: 1-a central support, 2-a cable core, 3-a cable core installation groove, 4-flame-retardant fibers, 5-an insulating layer, 6-an internal spiral steel ring, 7-an elastic layer, 8-a flame-retardant layer, 9-a waterproof layer, 10-a protective layer, 11-an external spiral steel ring, 12-lightening holes, 13-a polyurethane foam filler and 14-a fireproof filler.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, the present invention provides a technical solution, an anti-twisting cable, including a central support 1, a plurality of cable cores 2 and a protective sheath, wherein the central support 1 is provided with a plurality of cable core mounting grooves 3 which are arranged along a circumferential direction at equal intervals and extend along an axial direction, the cable core mounting grooves 3 are in one-to-one correspondence with the cable cores 2, and the cable core mounting grooves 3 are filled with flame retardant fibers 4, the outer side of the central support 1 is fixedly wrapped with an insulating layer 5, the outer side of the insulating layer 5 is fixedly wrapped with an inner spiral steel ring 6, the outer side of the inner spiral steel ring 6 is fixedly wrapped with an elastic layer 7, the outer side of the elastic layer 7 is fixedly wrapped with a flame retardant layer 8, the outer side of the flame retardant layer 8 is fixedly wrapped with a waterproof layer 9, the outer side of the waterproof layer 9 is fixedly wrapped with a protective layer 10, the, and the spiral directions of the inner spiral steel ring 6 and the outer spiral steel ring 11 are the same.

In the embodiment, the cross section of the central support 1 is a regular polygon or a circle, and a lightening hole 12 is formed in the center of the central support 1.

In the present embodiment, the weight-reducing holes 12 are filled with polyurethane foam fillers 13.

In the present embodiment, a fireproof filler 14 is filled between the central support 1 and the insulating layer 5.

In this embodiment, the cable core installation groove 3 has a triangular cross section.

In this embodiment, the inner spiral steel ring 6 is made of spring steel, and the inner spiral steel ring 6 is spirally wound on the outer side of the insulating layer 5.

In this embodiment, the outer spiral steel ring 11 is made of spring steel, and the outer spiral steel ring 11 is spirally wound on the outer side of the protection layer 10.

The central support 1 is made of a ceramic silicone rubber material. The cable core 2 can be prevented from short circuit in a fire environment by being converted into a ceramic hard support after being burned by flame, so that the service time of the cable in the fire environment is prolonged. The lightening holes 12 of the central support 1 can reduce the overall weight of the cable, and the polyurethane foam fillers 13 are filled in the lightening holes 12, so that the overall pressure resistance of the cable can be improved. The flame-retardant fiber 4 and the flame-retardant layer 8 are arranged, so that the flame-retardant and fireproof performance of the cable can be improved, and the fire is prevented from being expanded. The waterproof layer 9 is arranged, so that the waterproof performance of the cable can be improved. Set up the same interior spiral steel ring 6 of spiral direction and outer spiral steel ring 11, can turn into flexible stress with torsional stress, in addition, elastic layer 7 is the weaving layer of being made by elastic fiber, inoxidizing coating 10 is made by elastic rubber material, elasticity is better, can be along with interior spiral steel ring 6 and outer spiral steel ring 11 deformation, fully absorb external torsional stress, through setting up elastic layer 7, can promote the tensile property of cable, prevent simultaneously that external torsional stress from producing the influence to the cable core.

The utility model discloses a multilayer composite construction, reasonable in design, simple structure has good resistance to compression, waterproof, fire prevention, fire-retardant, antitorque distortion, resistant performance of buckling, has spreading value.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An anti-twisting cable is characterized in that: including central support, a plurality of cable core and protective sheath, central support seted up the several and arranged, along axially extended cable core mounting groove along circumference equidistance, wherein cable core mounting groove and cable core one-to-one, and cable core mounting groove intussuseption is filled with flame retardant fiber, the fixed cladding in the outside of central support have an insulating layer, the fixed cladding in the outside of insulating layer be equipped with interior spiral steel ring, the fixed cladding in the outside of interior spiral steel ring have an elasticity layer, the fixed cladding in the outside of elasticity layer have fire retardant layer, the fixed cladding in the outside of fire retardant layer have the waterproof layer, the fixed cladding in the outside of waterproof layer have the inoxidizing coating, the fixed cover in the outside of inoxidizing coating be equipped with outer spiral steel ring, and the spiral direction of interior spiral.

2. An anti-twisting type cable according to claim 1, wherein: the cross section of the central support is in a regular polygon or a circle, and a lightening hole is formed in the center of the central support.

3. An anti-twisting type cable according to claim 2, wherein: and polyurethane foaming fillers are filled in the lightening holes.

4. An anti-twisting type cable according to claim 1, wherein: and fireproof filler is filled between the central support and the insulating layer.

5. An anti-twisting type cable according to claim 1, wherein: the cable core mounting groove is triangular in section.

6. An anti-twisting type cable according to claim 1, wherein: the material of the inner spiral steel ring is spring steel, and the inner spiral steel ring is spirally wound on the outer side of the insulating layer.

7. An anti-twisting type cable according to claim 1, wherein: the outer spiral steel ring is made of spring steel and is spirally wound on the outer side of the protective layer.