Impact-resistant cable sheath

Abstract

The utility model relates to the technical field of cable sheaths, and provides an impact-resistant cable sheath, including electric wires, the outer walls of the electric wires are all fixed with insulating layers, the interior of the insulating layer is provided with a pressure-resistant structure, the pressure-resistant structure includes a support frame, an outer sheath and an impact-resistant layer, the support frame runs through the interior of the insulating layer, and the outer sheath is provided outside the support frame. The utility model is provided with a pressure-resistant structure, and the support frame is in a cross shape, so that the insulating layers are distributed in a state of equal spacing and not conflicting with each other inside the stable structure, and the support frame has the characteristics of high elasticity, insulation, impermeability to water and air, etc. The outer sheath and the impact-resistant layer are made of PVC material, which has the characteristics of fireproofing, oil resistance, good flexibility and low cost, and is very strong. The impact-resistant layer is convex on the surface of the outer sheath, and has the functions of shock absorption and pressure resistance, so as to achieve the impact resistance of the device and improve the service life of the cable sheath.

Description

Technical Field

[0001] The utility model relates to the technical field of cable sheaths, in particular to an impact-resistant cable sheath. Background Art

[0002] An impact-resistant cable sheath is designed to improve the durability and safety of the cable, enabling it to withstand external physical impacts, thereby protecting the wires and insulation layers inside the cable from damage. This sheath is usually made of high-strength materials and has excellent impact resistance, abrasion resistance and aging resistance. Structurally, the impact-resistant cable sheath may adopt a multi-layer design to provide more comprehensive protection. In terms of material selection, the impact-resistant cable sheath may adopt high-strength materials such as polymers, rubber or metals.

[0003] Cables are indispensable in life and work, so the requirements for the use of cable sheaths that protect cables are also increasing. Traditional cable sheaths mostly use a single-layer impact-resistant layer, and the flexibility of the material is not good enough, and they are easily damaged under high-intensity impact. Utility Model Content

[0004] The utility model aims to provide an impact-resistant cable sheath to solve the defect of short service life of the existing cable sheath.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an impact-resistant cable sheath, comprising a wire;

[0006] The outer walls of the electric wires are all fixed with an insulating layer, and the interior of the insulating layer is provided with a pressure-resistant structure;

[0007] The compression-resistant structure comprises a support frame, an outer sheath and an impact-resistant layer. The support frame runs through the interior of the insulating layer, an outer sheath is arranged outside the support frame, and an impact-resistant layer is fixed on the outer wall of the outer sheath.

[0008] The inner wall of the outer sheath outside the support frame is provided with a stabilizing structure.

[0009] Preferably, the wires are copper conductors, the insulating layer is a cross-linked polyethylene layer, the wires are distributed at equal intervals inside the insulating layer, and the insulating layer is distributed at equal intervals on four sides of the support frame.

[0010] Preferably, the support frame is in a cross shape and is made of rubber.

[0011] Preferably, the outer sheath is a PVC layer, and the impact-resistant layers are distributed at equal intervals on the outer wall of the outer sheath.

[0012] Preferably, the stabilizing structure includes an inner sheath, a first metal wire, a second metal wire and a buffer layer, the interior of the inner sheath is arranged outside the support frame, the outer wall of the inner sheath is provided with the first metal wire, the outer wall of the inner sheath is provided with the second metal wire, and the outer wall of the second metal wire and the inner wall of the outer sheath are provided with a buffer layer.

[0013] Preferably, the insulating layers are arranged inside the inner sheath at equal intervals, and the inner sheath is a PUR layer.

[0014] Preferably, the first metal wire and the second metal wire are elastic steel wires, the first metal wire and the second metal wire are distributed in a mesh shape, and the buffer layer is an F46 layer.

[0015] The utility model provides an impact-resistant cable sheath, which has the advantages of:

[0016] By providing a compression-resistant structure, the support frame is in a cross shape, so that the insulation layers are distributed in an evenly spaced and non-contradictory state inside the stable structure, and the support frame has the characteristics of high elasticity, insulation, impermeability to water and air, etc. The outer sheath and the impact-resistant layer are made of PVC material, which has the characteristics of fire resistance, oil resistance, good flexibility and low cost, and is very strong. The impact-resistant layer is convex on the surface of the outer sheath, and has the functions of shock absorption and compression resistance, thereby realizing the impact resistance of the device and improving the service life of the cable sheath;

[0017] By providing a stable structure, the inner sheath is very elastic, has very high memory, is wear-resistant, and has excellent flexibility in low-temperature environments. The first metal wire and the second metal wire are cross-distributed in a mesh to form a metal mesh. The heat resistance of the buffer layer can be used continuously within a temperature range of -85 to +200°C, and has good insulation performance and stability, thereby achieving stable performance of the device and improving the stability of the cable sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main cross-section of the utility model;

[0019] Figure 2 It is a three-dimensional schematic diagram of the support frame of the utility model;

[0020] Figure 3 It is a schematic cross-sectional view of the metal mesh of the utility model;

[0021] Figure 4 It is a schematic diagram of the stable structure of the utility model;

[0022] Figure 5 It is a three-dimensional schematic diagram of the utility model.

[0023] Explanation of the reference numerals in the figure: 1. electric wire; 2. insulating layer; 3. compression-resistant structure; 301. support frame; 302. outer sheath; 303. impact-resistant layer; 4. stable structure; 401. inner sheath; 402. first metal wire; 403. second metal wire; 404. buffer layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5 The utility model provides an impact-resistant cable sheath, which includes a wire 1.

[0026] Reference Figure 1 , Figure 2 and Figure 5 As shown, the outer wall of the wire 1 is fixed with an insulating layer 2, the wire 1 is a copper conductor, the insulating layer 2 is a cross-linked polyethylene layer, the wire 1 is evenly distributed inside the insulating layer 2, a pressure-resistant structure 3 is arranged inside the insulating layer 2, the pressure-resistant structure 3 includes a support frame 301, an outer sheath 302 and an impact-resistant layer 303, the insulating layer 2 is evenly distributed on the four sides of the support frame 301, the support frame 301 runs through the inside of the insulating layer 2, an outer sheath 302 is arranged outside the support frame 301, the outer wall of the outer sheath 302 is fixed with an impact-resistant layer 303, the support frame 301 is cross-shaped, the support frame 301 is made of rubber, the outer sheath 302 is a PVC layer, the impact-resistant layer 303 is evenly distributed on the outer wall of the outer sheath 302, and a stabilizing structure 4 is arranged on the inner wall of the outer sheath 302 outside the support frame 301.

[0027] The support frame 301 is in the shape of a cross, so that the insulating layer 2 is distributed in an evenly spaced and non-contradictory state inside the stable structure 4, and the support frame 301 has the characteristics of high elasticity, insulation, impermeability to water and air, etc. The outer sheath 302 and the impact-resistant layer 303 are made of PVC material, which is fire-proof, oil-proof, flexible and low-cost, and is very strong. The impact-resistant layer 303 is convex on the surface of the outer sheath 302, and has the functions of shock absorption and pressure resistance.

[0028] Reference Figure 1 , Figure 3 and Figure 4As shown, the stabilizing structure 4 includes an inner sheath 401, a first metal wire 402, a second metal wire 403 and a buffer layer 404. The interior of the inner sheath 401 is arranged outside the support frame 301, the outer wall of the inner sheath 401 is provided with the first metal wire 402, the outer wall of the inner sheath 401 is provided with the second metal wire 403, the outer wall of the second metal wire 403 and the inner wall of the outer sheath 302 are provided with a buffer layer 404, the insulating layer 2 is arranged inside the inner sheath 401 and is distributed at equal intervals, the inner sheath 401 is a PUR layer, the first metal wire 402 and the second metal wire 403 are elastic steel wires, the first metal wire 402 and the second metal wire 403 are distributed in a mesh shape, and the buffer layer 404 is an F46 layer.

[0029] The inner sheath 401 is very elastic, has a very high memory, is wear-resistant, and has excellent flexibility in a low-temperature environment. The first metal wire 402 and the second metal wire 403 are cross-distributed in a mesh to form a metal mesh. The heat-resistant performance of the buffer layer 404 can be used continuously in a temperature range of -85 to +200°C, and has good insulation performance and stability.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An impact-resistant cable sheath, comprising a wire (1); Features: The outer wall of the electric wire (1) is fixed with an insulating layer (2), and the interior of the insulating layer (2) is provided with a pressure-resistant structure (3); The compression-resistant structure (3) comprises a support frame (301), an outer sheath (302) and an impact-resistant layer (303); the support frame (301) penetrates the interior of the insulating layer (2); the outer sheath (302) is arranged outside the support frame (301); and the outer wall of the outer sheath (302) is fixed with the impact-resistant layer (303); The inner wall of the outer protective sheath (302) outside the support frame (301) is provided with a stabilizing structure (4).

2. The impact-resistant cable sheath according to claim 1, characterized in that: The electric wire (1) is a copper conductor, the insulating layer (2) is a cross-linked polyethylene layer, the electric wire (1) is distributed at equal intervals inside the insulating layer (2), and the insulating layer (2) is distributed at equal intervals on four sides of the support frame (301).

3. The impact-resistant cable sheath according to claim 1, characterized in that: The support frame (301) is in the shape of a cross and is made of rubber.

4. The impact-resistant cable sheath according to claim 1, characterized in that: The outer sheath (302) is a PVC layer, and the impact-resistant layers (303) are distributed at equal intervals on the outer wall of the outer sheath (302).

5. The impact-resistant cable sheath according to claim 1, characterized in that: The stabilizing structure (4) comprises an inner sheath (401), a first metal wire (402), a second metal wire (403) and a buffer layer (404); the interior of the inner sheath (401) is arranged outside the support frame (301); the outer wall of the inner sheath (401) is provided with the first metal wire (402); the outer wall of the inner sheath (401) is provided with the second metal wire (403); the outer wall of the second metal wire (403) and the inner wall of the outer sheath (302) are provided with the buffer layer (404).

6. The impact-resistant cable sheath according to claim 5, characterized in that: The insulating layers (2) are arranged inside the inner sheath (401) and are distributed at equal intervals, and the inner sheath (401) is a PUR layer.

7. The impact-resistant cable sheath according to claim 5, characterized in that: The first metal wire (402) and the second metal wire (403) are elastic steel wires, the first metal wire (402) and the second metal wire (403) are distributed in a mesh shape, and the buffer layer (404) is an F46 layer.

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