Multi-layer anti-extrusion cable

Abstract

The utility model discloses a multilayer anti-extrusion cable, including cable entirety, wire core, packing layer, armor layer, oversheath, reinforcing body and expansion body, the cable entirety is composed of wire core, the wire core is located inside the cable entirety both sides, the inside of the cable entirety is provided with packing layer and is located outside the wire core, the armor layer is located outside the outer sheath, and the expansion body is located outside the outer sheath. An armor layer is arranged between the outside of the filling layer and the inner wall layer of the cable body, an outer protective layer is arranged on the outer wall of the armor layer, a reinforcing body is installed in the center of the cable body, and an expansion body is arranged between the middle of the reinforcing body and the filling layer. The multi-layer anti-extrusion cable adopts a multi-layer structural design, especially the armor layer and the reinforcing body, so that the anti-extrusion capability of the cable is remarkably enhanced, the armor layer is composed of the shielding layer and the anti-extrusion layer which respectively provide electromagnetic protection and mechanical strength, and the reinforcing body adopts a carbon fiber composite material and has the characteristics of high strength and light weight; and the anti-extrusion performance of the cable is further improved.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a multi-layer compression-resistant cable. Background Technology

[0002] A cable is a conductor made of one or more mutually insulated conductors and an outer insulating protective layer. It is used to transmit electricity or information from one place to another. It is usually a rope-like cable made of several or several groups of conductors twisted together. Each group of conductors is insulated from each other and is often twisted around a central core. The entire cable is covered with a highly insulating outer layer. As a device for transmitting electrical energy or signals, cables play an important role in various fields.

[0003] Existing cables have low resistance to compression and poor performance during use. For example, the cable disclosed in application number CN201510825426.5, by sequentially setting conductors, high-temperature resistant insulation layers, shielding layers, and protective layers from the inside out, can effectively ensure that the cable is not easily softened by high temperatures, prevent breakdown by overload current, and also play a signal shielding role to avoid interference with the signal transmission of other signal lines. At the same time, a thermosensitive color-changing layer is set on the surface of the protective layer, which allows for easy monitoring of the temperature of the outer surface of the conductor during use, so that the power can be quickly cut off when the cable overheats, ensuring safety and convenience in use. However, it lacks significant resistance to compression and good performance. During installation and use, cables may be subjected to various compressive forces from the outside. If the cable has poor compressive strength, its internal structure is easily damaged, leading to a decline in cable performance or even failure. The conductors and insulation layers inside the cable may deform when compressed, thus affecting the quality of current transmission. For signal transmission cables, compression may also cause signal attenuation or distortion. Low-performance cables may not meet high standards in terms of electrical performance, and low-performance cables may pose significant safety hazards during use.

[0004] Therefore, it is necessary to invent a multi-layered, compression-resistant cable to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a multi-layer compression-resistant cable to solve the problems of low compression resistance and performance in the current technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer compression-resistant cable, comprising a cable assembly, conductors, a filler layer, an armor layer, an outer sheath, a reinforcement layer, and an expansion body. The cable assembly is composed of conductors located on both sides of the inner surface of the cable assembly. A filler layer is disposed inside the cable assembly and located outside the conductors. An armor layer is disposed between the outer surface of the filler layer and the inner wall layer of the cable assembly. An outer sheath is disposed on the outer wall of the armor layer. A reinforcement layer is installed at the center of the cable assembly. An expansion body is disposed between the center of the reinforcement layer and the filler layer.

[0007] Preferably, the conductors are arranged in four groups and are evenly distributed in a matrix within the entire cable.

[0008] Preferably, the surface of the wire core is provided with a layer of oil-impregnated paper, which is disposed on the surface of the wire core in the form of a covering layer.

[0009] Preferably, the armor layer consists of a shielding layer and a pressure-resistant layer, wherein the shielding layer is the middle layer of the armor layer, and the outer surface of the shielding layer is provided with a pressure-resistant layer.

[0010] Preferably, the shielding layer is made of metal strip material, and the pressure-resistant layer is made of metal wire material.

[0011] Preferably, the outer protective layer comprises a main layer, a middle layer, and a surface layer, wherein the main layer is the middle layer of the outer protective layer, the middle layer is disposed on the outer surface of the main layer, and the surface layer is disposed on the outer surface of the middle layer.

[0012] Preferably, the main layer is a flame-retardant layer, the middle layer is a corrosion-resistant layer, the surface layer is an oil-resistant and wear-resistant layer, the flame-retardant layer is made of polyethylene, the corrosion-resistant layer is made of polyvinyl chloride, and the oil-resistant and wear-resistant layer is made of polyurethane.

[0013] Preferably, the reinforcement body is arranged in a cross shape, with all four ends of the reinforcement body attached to the four sides of the inner wall of the armor layer, and the material of the reinforcement body is carbon fiber composite material.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] This multi-layered, compression-resistant cable features a multi-layered structural design, particularly the armor layer and the solidification layer, which significantly enhances its compression resistance. The armor layer consists of a shielding layer and a compression-resistant layer, providing electromagnetic protection and mechanical strength, respectively. The solidification layer is made of carbon fiber composite material, which has high strength and lightweight properties, further improving the cable's compression resistance. The core surface is covered with an oil-impregnated paper sheath, providing excellent insulation performance and ensuring stable current or signal transmission. At the same time, the multi-layered structural design also helps reduce electromagnetic interference and improve the stability and reliability of electrical performance. The filler layer is located outside the core, helping to maintain the stability and shape of the cable's internal structure. In addition, the solidification layer and the expansion body enhance the cable's structural integrity under compression, preventing damage to the internal structure and interruption of current or signal. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the outer protective layer structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the armor layer structure of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Overall cable; 2. Core; 201. Oil-impregnated paper; 3. Filler layer; 4. Armor layer; 401. Shielding layer; 402. Compression-resistant layer; 5. Outer sheath; 501. Main layer; 502. Middle layer; 503. Surface layer; 6. Reinforcing body; 7. Expansion body. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figure 1-5The cable shown is a multi-layer compression-resistant cable, comprising a cable body 1, conductors 2, a filling layer 3, and an armor layer 4. The conductors 2 are arranged in four groups and are evenly distributed in a matrix inside the cable body 1. The cable body 1 is composed of conductors 2, which are located on both sides inside the cable body 1. A layer of oil-impregnated paper 201 is provided on the surface of the conductors 2 in the form of a covering layer. The filling layer 3 is provided inside the cable body 1 and is located outside the conductors 2. An armor layer 4 is provided between the outside of the filling layer 3 and the inner wall layer of the cable body 1. The armor layer 4 consists of a shielding layer 401 and a compression-resistant layer 402. The shielding layer 401 is the middle layer of the armor layer 4. The compression-resistant layer 402 is provided on the outer surface of the shielding layer 401. The shielding layer 401 is made of metal strip material, and the compression-resistant layer 402 is made of metal wire material.

[0025] The outer wall of the armor layer 4 is provided with an outer sheath 5. The outer sheath 5 consists of a main layer 501, a middle layer 502, and a surface layer 503. The main layer 501 is the middle layer of the outer sheath 5. The middle layer 502 is provided on the outer surface of the main layer 501, and the surface layer 503 is provided on the outer surface of the middle layer 502. The main layer 501 is a flame-retardant layer, the middle layer 502 is a corrosion-resistant layer, and the surface layer 503 is an oil-resistant and wear-resistant layer. The flame-retardant layer is made of polyethylene, the corrosion-resistant layer is made of polyvinyl chloride, and the oil-resistant and wear-resistant layer is made of polyurethane. A reinforcing body 6 is installed in the center of the cable assembly 1. The reinforcing body 6 is arranged in a cross shape. The four ends of the reinforcing body 6 are attached to the four sides of the inner wall of the armor layer 4. The material of the reinforcing body 6 is carbon fiber composite material. An expansion body 7 is provided between the center of the reinforcing body 6 and the filling layer 3.

[0026] The working principle of this practical application is as follows:

[0027] Refer to the instruction manual appendix Figure 1-5For this type of multi-layer compression-resistant cable, the conductor 2 serves as the conductive part, responsible for transmitting current or signals. The oil-impregnated paper 201 sheathing layer provides additional insulation protection, ensuring stable transmission of current or signals. The filler layer 3, located outside the conductor 2, provides support and protection, helping to maintain the stability and shape of the cable's internal structure while dispersing external pressure. The armor layer 4 consists of a shielding layer 401 and a compression-resistant layer 402, providing strong mechanical and electromagnetic shielding. The shielding layer 401 uses metal tape material to effectively prevent electromagnetic interference, while the compression-resistant layer 402 uses metal wire material to enhance the cable's compression resistance. The outer sheath 5 consists of a main layer 501, a middle layer 502, and a surface layer 503, providing comprehensive environmental protection. The flame-retardant layer uses polyethylene material to prevent the cable from burning in a fire, and the corrosion-resistant layer uses polyvinyl chloride material. The cable is made of polyurethane, which is resistant to chemical corrosion and has an oil-resistant and abrasion-resistant layer to improve its durability and abrasion resistance. The solidification layer 6, located in the center of the cable, is made of carbon fiber composite material and provides additional mechanical support. The expansion body 7, located between the solidification layer 6 and the filler layer 3, can expand to absorb some of the pressure when the cable is compressed, protecting the internal structure of the cable from damage. This multi-layered compression-resistant cable achieves high mechanical protection and electrical performance through its unique structure and material selection. The cable as a whole adopts a multi-layered structural design, especially the armor layer 4 and the solidification layer 6, which significantly enhance the cable's compression resistance. The armor layer 4 consists of a shielding layer 401 and a compression-resistant layer 402, which provide electromagnetic protection and mechanical strength, respectively. The solidification layer 6 is made of carbon fiber composite material, which has high strength and lightweight characteristics, further improving the cable's compression resistance.

Claims

1. A multi-layer compression-resistant cable, comprising a cable assembly (1), a conductor (2), a filler layer (3), an armor layer (4), an outer sheath (5), a reinforcement layer (6), and an expansion body (7), characterized in that, The cable assembly (1) is composed of wire cores (2), which are located on both sides inside the cable assembly (1). A filling layer (3) is provided inside the cable assembly (1) and is located outside the wire cores (2). An armor layer (4) is provided between the outer side of the filling layer (3) and the inner wall layer of the cable assembly (1). An outer sheath (5) is provided on the outer wall of the armor layer (4). A reinforcing body (6) is installed in the center of the cable assembly (1). An expansion body (7) is provided between the center of the reinforcing body (6) and the filling layer (3).

2. The multi-layer compression-resistant cable according to claim 1, characterized in that: The wire cores (2) are arranged in four groups and are evenly distributed in a matrix inside the cable as a whole (1).

3. The multi-layer compression-resistant cable according to claim 2, characterized in that: The surface of the core (2) is provided with a layer of oil-impregnated paper (201), which is disposed on the surface of the core (2) in the form of a covering layer.

4. A multi-layer compression-resistant cable according to claim 1, characterized in that: The armor layer (4) consists of a shielding layer (401) and a pressure-resistant layer (402). The shielding layer (401) is the middle layer of the armor layer (4), and the outer surface of the shielding layer (401) is provided with a pressure-resistant layer (402).

5. A multi-layer compression-resistant cable according to claim 4, characterized in that: The shielding layer (401) is made of metal strip material, and the pressure-resistant layer (402) is made of metal wire material.

6. A multi-layer compression-resistant cable according to claim 1, characterized in that: The outer protective layer (5) consists of a main layer (501), a middle layer (502) and a surface layer (503). The main layer (501) is the middle layer of the outer protective layer (5). The middle layer (502) is disposed on the outer surface of the main layer (501), and the surface layer (503) is disposed on the outer surface of the middle layer (502).

7. A multi-layer compression-resistant cable according to claim 6, characterized in that: The main layer (501) is a flame-retardant layer, the middle layer (502) is a corrosion-resistant layer, and the surface layer (503) is an oil-resistant and wear-resistant layer. The flame-retardant layer is made of polyethylene, the corrosion-resistant layer is made of polyvinyl chloride, and the oil-resistant and wear-resistant layer is made of polyurethane.

8. A multi-layer compression-resistant cable according to claim 1, characterized in that: The solidification body (6) is arranged in a cross shape, and the four ends of the solidification body (6) are attached to the four sides of the inner wall of the armor layer (4). The material of the solidification body (6) is carbon fiber composite material.

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