CN212934213U

CN212934213U - Extrusion-resistant cable

Info

Publication number: CN212934213U
Application number: CN202022127142.8U
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 extrusion-resistant type cable, including central support, the several that has arranged along circumference equidistance in the outside of central support supports the bead, central support's periphery is equipped with the several and supports the triangle-shaped sheath of bead one-to-one, and all be equipped with the cable core in every triangle-shaped sheath, the outside cladding of central support and triangle-shaped sheath is fixed with the resistance to compression layer, and the intussuseption of resistance to compression intussuseption is filled with fire prevention filler, the outside cladding on resistance to compression layer is fixed with the elastic layer, and form the decompression cavity between resistance to compression layer and the elastic layer, the outside cladding on elastic layer is fixed with the inflation layer, and the inflation layer comprises the water-absorbing expansion strip that the interval set up along circumference in turn and fire prevention expansion strip, the outside cladding on inflation layer is fixed with waterproof ventilative rete, the outside. The utility model discloses a multilayer composite construction, reasonable in design has good resistance to compression, shock attenuation, tensile, resistant buckling, resistant distortion, waterproof, fire prevention and the fast performance of heat dissipation, has spreading value.

Description

Extrusion-resistant cable

Technical Field

The utility model belongs to the technical field of the cable, concretely relates to resistant extrusion type cable.

Background

The cable is not unfamiliar in our lives, is a wire product for transmitting electric energy and information and realizing electromagnetic energy conversion, is mainly used in a power supply line, has a plurality of types of cables and a wide application range, but the existing cable still has some defects, such as weak extrusion resistance, deformation if external extrusion force is met in the use process, influence on the use of the cable, easy bending, influence on an internal line and further reduction in the use efficiency of the cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant extrusion type 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 a resistant extrusion type cable, its structural feature lies in: including central support, the several that has arranged along circumference equidistance in the outside of central support supports the bead, the periphery of central support is equipped with the several and supports the triangle-shaped sheath of bead one-to-one, and all be equipped with the cable core in every triangle-shaped sheath, the outside cladding of central support and triangle-shaped sheath is fixed with the resistance to compression layer, wherein the cross-section of resistance to compression layer is flower form structure, and the intussuseption of resistance to compression intussuseption is filled with fire prevention filler, the outside cladding of resistance to compression layer is fixed with the elastic layer, and form the decompression cavity between resistance to compression layer and the elastic layer, the outside cladding on elastic layer is fixed with the inflation layer, and the inflation layer comprises the water absorption expansion strip and the fire prevention expansion strip that circumference interval set up in turn, the outside cladding of inflation layer is fixed with waterproof ventilative rete, the.

Preferably, the cross-section of the central support is circular or regular polygonal.

Preferably, a plurality of tensile wires are embedded in the central support, and the tensile wires are nylon wires.

Preferably, the central support and the supporting convex ribs are integrally arranged, and the central support and the supporting convex ribs are both made of high-temperature-resistant elastic plastic materials.

Preferably, the triangular sheath is a honeycomb structure made of ceramic silicon rubber materials, wherein the inner surface of the triangular sheath is tangent to the outer surface of the cable core, and cooling heat dissipation filling sand is filled between the triangular sheath and the cable core.

Preferably, a buffering core strip is arranged between every two adjacent triangular sheaths, the cross section of each buffering core strip is circular, and the outer surfaces of the buffering core strips are tangent to the outer surfaces of the triangular sheaths and the inner surface of the pressure-resistant layer respectively.

Preferably, the cushion core is made of a high temperature vulcanized silicone rubber material.

Preferably, the pressure-resistant layer is made of high-temperature vulcanized silicone rubber material, and the pressure-resistant layer is provided with a plurality of pressure-reducing through holes which are equidistantly arranged along the circumferential direction.

Preferably, the elastic layer is a woven layer made of elastic fibers.

Compared with the prior art, the utility model discloses a multilayer composite construction, reasonable in design, simple structure has good resistance to compression, shock attenuation, tensile, resistant buckling, resistant distortion, waterproof, fire prevention and the fast performance of heat dissipation, has spreading value.

Drawings

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

in the figure: 1-central support, 2-supporting convex ribs, 3-triangular sheath, 4-cable core, 5-compression resistant layer, 6-fireproof filler, 7-elastic layer, 8-decompression cavity, 9-expansion layer, 10-water-absorbing expansion strip, 11-fireproof expansion strip, 12-waterproof breathable film layer, 13-outer sheath, 14-tensile resistant wire, 15-cooling heat dissipation filling sand, 16-buffer core strip and 17-decompression through hole.

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 utility model provides a technical scheme, a compression-resistant cable, which comprises a central support 1, a plurality of supporting convex edges 2 are equidistantly arranged along the circumferential direction on the outer side of the central support 1, a plurality of triangular sheaths 3 corresponding to the supporting convex edges 2 one by one are arranged on the periphery of the central support 1, a cable core 4 is arranged in each triangular sheath 3, a compression-resistant layer 5 is coated and fixed on the outer sides of the central support 1 and the triangular sheaths 3, wherein the cross section of the compression-resistant layer 5 is in a flower-shaped structure, a fireproof filler 6 is filled in the compression-resistant layer 5, an elastic layer 7 is coated and fixed on the outer side of the compression-resistant layer 5, a decompression cavity 8 is formed between the compression-resistant layer 5 and the elastic layer 7, an expansion layer 9 is coated and fixed on the outer side of the elastic layer 7, and the expansion layer 9 is composed of a plurality of water-absorbing expansion strips 10 and fireproof expansion strips 11 alternately arranged along the circumferential direction at, a waterproof breathable film layer 12 is fixed on the outer side of the expansion layer 9 in a wrapping mode, and an outer sheath 13 is fixed on the outer side of the waterproof breathable film layer 12 in a wrapping mode.

In the present embodiment, the cross section of the central support 1 is circular or regular polygon.

In this embodiment, a plurality of tensile wires 14 are embedded in the central support 1, and the tensile wires 14 are nylon wires.

In the embodiment, the central support 1 and the supporting ribs 2 are integrally arranged, and the central support 1 and the supporting ribs 2 are made of high-temperature-resistant elastic plastic materials.

In this embodiment, the triangular sheath 3 is a honeycomb structure made of a ceramic silicone rubber material, wherein the inner surface of the triangular sheath 3 is tangent to the outer surface of the cable core 4, and cooling and heat dissipating filler sand 15 is filled between the triangular sheath 3 and the cable core 4.

In this embodiment, a buffering core strip 16 is disposed between two adjacent triangular sheaths 3, wherein the cross section of the buffering core strip 16 is circular, and the outer surfaces of the buffering core strip 16 are tangent to the outer surfaces of the triangular sheaths 3 and the inner surface of the pressure resistant layer 5.

In the present embodiment, the buffer core strip 16 is made of a high-temperature vulcanized silicone rubber material.

In this embodiment, the pressure-resistant layer 5 is made of high-temperature vulcanized silicone rubber, and the pressure-resistant layer 5 is provided with a plurality of pressure-reducing through holes 17 arranged at equal intervals along the circumferential direction.

In this embodiment, the elastic layer 7 is a woven layer made of elastic fibers.

The triangular sheath 3 can greatly improve the protection effect on the cable core 4, reduce the impact effect of radial pressure on the cable core 4, and convert the cable core 4 into a ceramic hard support after being fired by flame, so that the cable core 4 can be prevented from short circuit in a fire environment, and the service time of the cable in the fire environment is prolonged; the cooling heat dissipation filling sand 15 is arranged, so that the heat generated by the cable core 4 in the working process can be reduced, and the fire hazard can be reduced; the central support 1, the supporting convex edges 2, the compression-resistant layer 5, the elastic layer 7, the decompression cavity 8, the buffering core strip 16 and the decompression through hole 17 are arranged, so that the impact of external radial pressure on the cable core 4 can be greatly relieved, the cable core 4 is effectively protected from being damaged, and the use safety of the cable is improved; the tensile strength and the bending resistance of the central support 1 can be improved by arranging the tensile wire 14; the waterproof breathable film layer 12 is arranged to prevent water from entering the cable, when the waterproof breathable film layer 12 is damaged, the water absorption expansion strips 10 absorb moisture to expand to block cracks, so that water is further prevented from entering the cable, the situation of electric leakage and short circuit of the cable can be well prevented, and the cable can still work well in a humid environment; the fireproof expansion strip 11 is arranged to expand in the fire state to block the crack of the outer sheath 13, so that the cable core 4 can be prevented from being burnt, and the use safety is improved.

The utility model discloses a multilayer composite construction, reasonable in design, simple structure has good resistance to compression, shock attenuation, tensile, resistant buckling, resistant distortion, waterproof, fire prevention and the fast performance of heat dissipation, 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 extrusion-resistant cable, characterized in that: comprises a central support, a plurality of supporting convex ribs are arranged on the outer side of the central support along the circumferential direction at equal intervals, the periphery of the central support is provided with a plurality of triangular sheaths which are in one-to-one correspondence with the supporting convex ribs, and each triangular sheath is internally provided with a cable core, the outer sides of the central bracket and the triangular sheath are wrapped and fixed with a pressure resistant layer, wherein the section of the compression-resistant layer is in a flower-shaped structure, the compression-resistant layer is filled with fireproof fillers, the outer side of the compression-resistant layer is wrapped and fixed with an elastic layer, a decompression cavity is formed between the compression-resistant layer and the elastic layer, an expansion layer is coated and fixed on the outer side of the elastic layer, and the expansion layer is composed of a plurality of water-absorbing expansion strips and fireproof expansion strips which are alternately arranged at intervals along the circumferential direction, the outer side of the expansion layer is fixedly coated with a waterproof breathable film layer, and the outer side of the waterproof breathable film layer is fixedly coated with an outer sheath.

2. A crush-resistant cable as claimed in claim 1, wherein: the section of the central bracket is circular or regular polygon.

3. A crush-resistant cable as claimed in claim 1, wherein: the central support is embedded with a plurality of tensile wires, and the tensile wires are nylon wires.

4. A crush-resistant cable as claimed in claim 1, wherein: the central support and the supporting convex ribs are arranged integrally and are made of high-temperature-resistant elastic plastic materials.

5. A crush-resistant cable as claimed in claim 1, wherein: the triangular sheath is of a honeycomb structure made of ceramic silicon rubber materials, wherein the inner surface of the triangular sheath is tangent to the outer surface of the cable core, and cooling heat dissipation filling sand is filled between the triangular sheath and the cable core.

6. A crush-resistant cable as claimed in claim 1, wherein: and a buffer core strip is arranged between every two adjacent triangular sheaths, the cross section of each buffer core strip is circular, and the outer surfaces of the buffer core strips are tangent to the outer surfaces of the triangular sheaths and the inner surface of the pressure-resistant layer respectively.

7. A crush-resistant cable as claimed in claim 6, wherein: the buffer core strip is made of high-temperature vulcanized silicone rubber material.

8. A crush-resistant cable as claimed in claim 1, wherein: the compression-resistant layer is made of high-temperature vulcanized silicone rubber materials, and the compression-resistant layer is provided with a plurality of pressure reduction through holes which are distributed at equal intervals along the circumferential direction.

9. A crush-resistant cable as claimed in claim 1, wherein: the elastic layer is a woven layer made of elastic fibers.