Cable core fracture prevention type cable

Abstract

The utility model relates to the technical field of cables, in particular to a cable capable of preventing a cable core from being broken, which comprises a wear-resistant layer, a stretch-resistant layer arranged inside the wear-resistant layer, a flame-retardant layer arranged inside the stretch-resistant layer, an elastic buffer layer arranged inside the flame-retardant layer, a heat-insulating layer arranged inside the elastic buffer layer, and a heat-insulating layer arranged inside the heat-insulating layer. A plurality of insulating layers are arranged in the thermal insulation layer, and cable cores are arranged in the plurality of insulating layers. Compared with the prior art, the tensile performance of the cable is good through the arrangement of the tensile layer, external acting force encountered by the cable can be shared through the cooperation of the tensile layer, the central stress strip and the plurality of supporting strips, the external acting force can be buffered through the elastic buffer layer, and the service life of the cable is prolonged. The situation that external acting force directly acts on the cable core is greatly avoided, then the situation that the cable core is damaged and broken is avoided, and normal use and the service life of the cable are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a cable core breakage-proof cable. Background Art

[0002] Cable is a device for transmitting electric energy or signals, usually composed of several or several groups of wires. Cables include power cables, control cables, compensation cables, shielded cables, high temperature cables, computer cables, signal cables, coaxial cables, fire-resistant cables, marine cables, mining cables, aluminum alloy cables, etc. They are all composed of single or multiple wires and insulation layers, used to connect circuits, electrical appliances, etc.

[0003] The structure of the cable is generally simple. Although it can meet the use requirements under normal circumstances, when encountering external impact forces, the external impact forces and other forces are likely to act directly on the cable core, which may easily cause the cable core to break, resulting in the cable being unable to be used normally, affecting the normal transmission function and life of the cable core. Therefore, a cable that prevents the cable core from breaking is needed to solve the above problems. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] Therefore, one purpose of the utility model is to provide a cable that prevents cable core breakage, so as to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a cable core breakage-proof cable, comprising a wear-resistant layer, an anti-stretching layer is arranged inside the wear-resistant layer, a flame-retardant layer is arranged inside the anti-stretching layer, an elastic buffer layer is arranged inside the flame-retardant layer, a thermal insulation layer is arranged inside the elastic buffer layer, a plurality of insulating layers are arranged inside the thermal insulation layer, a cable core is arranged inside several insulating layers, a central stress bar is arranged at the center position of one side of several thermal insulation layers, and a plurality of support bars are fixedly connected to the outer surface of the central stress bar.

[0007] Preferably, any of the above solutions is that the material of the wear-resistant layer is ethylene acrylate rubber.

[0008] Preferably, in any of the above schemes, the material of the anti-stretching layer is elastic fiber.

[0009] Preferably, any of the above solutions is that the flame retardant layer is made of fluororubber.

[0010] Preferably, any of the above solutions is made of sponge rubber.

[0011] Preferably, in any of the above schemes, the material of the heat insulation layer is aerogel.

[0012] Preferably, any of the above schemes is that the central stress strip and the support strip are both made of polyurethane rubber.

[0013] Preferably, any of the above schemes is that the support bar passes through the insulation layer, the elastic buffer layer and the flame retardant layer, the end of the support bar away from the central stress bar is fixedly connected to the inner wall of the anti-tensile layer, and the cable core is located inside the space formed by two adjacent support bars.

[0014] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0015] 1. The anti-stretching layer is provided to make the anti-stretching performance of the cable better, and the external force encountered by the cable can be shared by the coordination with the central force bar and several support bars, and the elastic buffer layer can buffer the external force, which greatly avoids the external force directly acting on the cable core, thereby avoiding the damage and breakage of the cable core, and ensuring the normal use and life of the cable.

[0016] 2. The wear-resistant layer is provided to make the cable more wear-resistant, the flame-retardant layer is provided to make the cable more flame-retardant, and the heat-insulating layer is provided to make the cable more heat-insulating, thereby further ensuring the service life of the cable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] In the figure: 1-wear-resistant layer, 2-tensile resistance layer, 3-flame retardant layer, 4-elastic buffer layer, 5-thermal insulation layer, 6-insulating layer, 7-cable core, 8-center stress bar, 9-support bar. DETAILED DESCRIPTION

[0019] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0020] like Figure 1As shown, a cable with an anti-cable core breakage type includes a wear-resistant layer 1, an anti-stretching layer 2 is arranged inside the wear-resistant layer 1, a flame-retardant layer 3 is arranged inside the anti-stretching layer 2, an elastic buffer layer 4 is arranged inside the flame-retardant layer 3, a heat-insulating layer 5 is arranged inside the elastic buffer layer 4, a plurality of insulating layers 6 are arranged inside the heat-insulating layer 5, a cable core 7 is arranged inside each of the plurality of insulating layers 6, a central stress bar 8 is arranged at the central position of one side of the plurality of thermal insulation layers 5, and a plurality of supporting bars 9 are fixedly connected to the outer surface of the central stress bar 8. When the cable is subjected to external impact force, the external impact force will be transmitted to the anti-stretching layer 2, and then the external impact force will be shared by the plurality of supporting bars 9 and the central stress bar 8, and the external impact force will be buffered by the elastic buffer layer 4, thereby avoiding the external impact force directly acting on the cable core 7.

[0021] As an optional technical solution of the utility model, the material of the wear-resistant layer 1 is ethylene acrylate rubber. The wear resistance of ethylene acrylate rubber is better than that of other synthetic rubbers, so that the wear resistance of the cable is relatively good.

[0022] As an optional technical solution of the present invention, the material of the anti-stretching layer 2 is elastic fiber. The elastic fiber has good elasticity, so that the anti-stretching performance of the cable is relatively good, which greatly avoids the situation where the cable is broken due to external tension.

[0023] As an optional technical solution of the present invention, the flame retardant layer 3 is made of fluororubber, which has good high temperature resistance, so that the flame retardant performance of the cable is relatively good.

[0024] As an optional technical solution of the present invention, the elastic buffer layer 4 is made of sponge rubber, which has excellent elasticity and flexibility and has high shock absorption, sound insulation and heat insulation properties.

[0025] As an optional technical solution of the present invention, the material of the heat insulation layer 5 is aerogel. The density of aerogel is relatively small, which can greatly avoid the influence of external temperature on the cable core 7 and ensure the service life of the cable core 7.

[0026] As an optional technical solution of the utility model, the center force strip 8 and the support strip 9 are both made of polyurethane rubber, which has high hardness, good elasticity, strength and tear resistance, so that the cable can withstand external pressure without breaking while bending smoothly, thereby sharing the external impact force.

[0027] A cable that prevents cable core breakage, the working principle is as follows:

[0028] When the cable is subjected to external impact force, the external impact force will be transmitted to the anti-tensile layer 2, and then shared by a number of support bars 9 and a central force-bearing bar 8, and buffered by the elastic buffer layer 4, thereby avoiding the external impact force from directly acting on the cable core 7 and protecting the cable core 7.

[0029] To sum up, the cable core breakage-resistant cable has better tensile resistance by setting the anti-tensile layer 2, and can share the external force encountered by the cable by coordinating with the central force bar 8 and a plurality of support bars 9, and can buffer the external force through the elastic buffer layer 4, thereby greatly avoiding the external force directly acting on the cable core 7, and thus avoiding the damage and breakage of the cable core 7, ensuring the normal use and life of the cable, and the wear-resistant layer 1 is provided to make the wear resistance of the cable better, the flame-retardant layer 3 makes the flame-retardant performance of the cable better, and the thermal insulation layer 5 makes the thermal insulation performance of the cable better, further ensuring the service life of the cable structure.

Claims

1. A cable with an anti-cable core breakage feature, characterized in that: The invention comprises a wear-resistant layer (1), an anti-stretching layer (2) is arranged inside the wear-resistant layer (1), a flame-retardant layer (3) is arranged inside the anti-stretching layer (2), an elastic buffer layer (4) is arranged inside the flame-retardant layer (3), a heat-insulating layer (5) is arranged inside the elastic buffer layer (4), a plurality of insulating layers (6) are arranged inside the heat-insulating layer (5), a cable core (7) is arranged inside each of the plurality of insulating layers (6), a central stress bar (8) is arranged at the central position of one side of the plurality of the heat-insulating layers (5), and a plurality of support bars (9) are fixedly connected to the outer surface of the central stress bar (8).

2. The cable according to claim 1, characterized in that: The material of the wear-resistant layer (1) is ethylene acrylate rubber.

3. The cable according to claim 2, characterized in that: The material of the anti-stretching layer (2) is elastic fiber.

4. The cable according to claim 3, characterized in that: The material of the flame retardant layer (3) is fluororubber.

5. The cable according to claim 4, characterized in that: The elastic buffer layer (4) is made of sponge rubber.

6. The cable according to claim 5, characterized in that: The material of the heat insulation layer (5) is aerogel.

7. The cable according to claim 6, characterized in that: The central stress strip (8) and the support strip (9) are both made of polyurethane rubber.

8. The cable according to claim 7, characterized in that: The support bar (9) penetrates the heat insulation layer (5), the elastic buffer layer (4) and the flame retardant layer (3); one end of the support bar (9) away from the central stress-bearing bar (8) is fixedly connected to the inner wall of the tensile resistance layer (2); and the cable core (7) is located inside the space formed by two adjacent support bars (9).

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