A high-strength tensile fireproof cable

By setting a tensile-resistant mechanism on the outside of the cable body, including a tensile-resistant rubber ring and a retaining ring, the problem of poor flexibility and tensile strength of fire-resistant cables is solved, and the flexibility and tensile strength of high-strength tensile fire-resistant cables are improved.

CN224457700UActive Publication Date: 2026-07-03XINJIANG XINLILIN ELECTRICAL EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG XINLILIN ELECTRICAL EQUIP CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The fire-resistant and high-temperature resistant outer shell of existing fire-resistant cables results in poor cable flexibility and tensile strength, making them prone to internal structural compression during bending and pulling, which affects service life and thermal expansion and contraction performance.

Method used

A tensile-resistant mechanism is installed on the outside of the cable body, including tensile rubber rings, abutment rings, and wear-resistant rings. The abutment rings and soft rubber rings buffer the extrusion pressure, increase flexibility, and reduce the extrusion area. Connecting rings are used to connect the various layers to maintain tensile performance.

Benefits of technology

It improves the cable's flexibility and tensile strength, reduces the compressive stress during bending, enhances the cable's adaptability to temperature changes, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a high-strength, tensile-resistant fire-resistant cable, relating to the field of fire-resistant cables. The high-strength, tensile-resistant fire-resistant cable includes a cable body, an outer rubber ring on the outside of the cable body, and a tensile-resistant mechanism outside the outer rubber ring. The tensile-resistant rubber ring is positioned outside the outer rubber ring, improving the external tensile strength of the cable body. A retaining ring is positioned inside the tensile-resistant rubber ring, and a wear-resistant ring is positioned outside the retaining ring, providing wear protection for the outermost layer of the cable body. This high-strength, tensile-resistant fire-resistant cable reduces the compression area between the outer protective layers of the cable body by incorporating a retaining ring. Simultaneously, the retaining ring, in conjunction with the tensile-resistant rubber ring, increases bending space through multiple gaps outside the retaining ring, thereby improving the flexibility of the cable body. Furthermore, a connecting ring connects the layers outside the retaining ring, ensuring that the flexible placement of the retaining ring does not affect the connection between the tensile-resistant rubber ring and other layers.
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Description

Technical Field

[0001] This utility model relates to the field of fireproof cable technology, specifically a high-strength tensile fireproof cable. Background Technology

[0002] Fire-resistant cables are cables with a certain fire-resistant effect. These cables can withstand high-temperature combustion in the event of a fire, thereby reducing the damage to the cables in a fire.

[0003] Existing fire-resistant cables suffer from poor flexibility and tensile strength due to their fire-resistant and high-temperature-resistant protective outer shell.

[0004] The reason for this problem is that a fireproof and heat-insulating layer is installed on the outside of the protective cable. The thickness of the fireproof and heat-insulating layer is thicker than that of other protective layers. This increases the overall thickness of the outer layer of the cable, thereby reducing the overall flexibility of the cable. When the fireproof cable is bent and pulled, the internal layers will be squeezed against each other, thus reducing the service life of the internal structure of the cable. In addition, the cable is exposed to changes in the external temperature environment. The cable will expand and contract during bending and pulling, which will also cause the internal structure to be squeezed, leading to the problem of cable cracking. Therefore, we propose a high-strength tensile fireproof cable. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model proposes a high-strength tensile fireproof cable, which solves the problem that the existing fireproof cables have poor flexibility and tensile strength due to the fireproof and high-temperature resistant protective shell.

[0006] To solve the above-mentioned technical problems, the basic technical solution proposed by this utility model is as follows: a high-strength tensile fireproof cable, comprising a cable body, an outer rubber ring disposed on the outside of the cable body, a tensile mechanism disposed on the outside of the outer rubber ring, the tensile mechanism comprising a tensile rubber ring disposed on the outside of the outer rubber ring, the tensile rubber ring improving the external tensile strength of the cable body, a retaining ring disposed inside the tensile rubber ring, the retaining ring being used to reduce the compression area during the pulling of the outer rubber ring, and a wear-resistant ring disposed outside the retaining ring, the wear-resistant ring being used for the outermost wear-resistant effect of the cable body.

[0007] Preferably, a connecting adhesive layer is provided on the outside of the cable body, an outer rubber ring is provided on the outside of the connecting adhesive layer, an insulating layer is provided on the outside of the outer rubber ring, and a tensile rubber ring is provided on the outside of the insulating layer.

[0008] Preferably, the cable body has annular grooves arranged sequentially on its outer surface, the abutment ring is disposed inside the annular groove, and the tensile rubber ring is fitted with a connecting ring on its outer surface, with the connecting ring disposed on both sides of the abutment ring.

[0009] Preferably, a soft rubber ring is provided on the outside of the connecting ring, and a heat insulation ring is provided on the outside of the soft rubber ring, with the outside of the abutting ring abutting against the inside of the soft rubber ring.

[0010] Preferably, a protective ring is provided outside the heat insulation ring, and the wear-resistant ring is provided outside the protective ring.

[0011] The beneficial effects of this utility model are:

[0012] The technical solution of this utility model involves placing a retaining ring between two sets of connecting rings. The retaining ring abuts against the inner side of the soft rubber ring. When the cable is subjected to bending and compressive forces, the retaining ring, made of soft rubber, buffers the compressive force. This reduces the area of ​​mutual compression within the cable's internal structure, and the extra space outside the retaining ring also reduces the compressive force at the bending point during bending, thus increasing the overall flexibility of the cable. By setting the retaining ring, the compression area between the outer protective layers of the cable is reduced. Simultaneously, the retaining ring, in conjunction with the tensile rubber ring, increases bending space through multiple gaps outside the retaining ring, thereby improving the flexibility of the cable. Furthermore, the connecting ring connects the outer layers of the retaining ring, ensuring that the flexible placement of the retaining ring does not affect the connection between the tensile rubber ring and other layers. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the external appearance of the cable body of this utility model;

[0016] Figure 3 This is a schematic diagram of the external appearance of the tensile rubber ring of this utility model;

[0017] Figure 4 This is a schematic diagram of the external appearance of the soft rubber ring of this utility model.

[0018] In the diagram: 1. Cable body; 101. Outer rubber ring; 2. Tensile rubber ring; 201. Abutment ring; 202. Connecting ring; 203. Insulation layer; 204. Connecting rubber layer; 205. Annular groove; 206. Wear-resistant ring; 207. Protective ring; 208. Heat insulation ring; 209. Soft rubber ring. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] This application provides a high-strength, tensile-resistant fireproof cable, which solves the problem that existing fireproof cables have poor flexibility and tensile strength due to their fire-resistant and high-temperature-resistant protective shells.

[0021] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0022] According to the appendix Figures 1-4 As shown, the cable includes a cable body 1, an outer rubber ring 101 is provided on the outside of the cable body 1, and a tensile mechanism is provided on the outside of the outer rubber ring 101. The tensile mechanism includes a tensile rubber ring 2, which is provided on the outside of the outer rubber ring 101. The tensile rubber ring 2 improves the external tensile strength of the cable body 1. An abutment ring 201 is provided inside the tensile rubber ring 2. The abutment ring 201 is used to reduce the compression area of ​​the outer rubber ring 101 during the pulling process. A wear-resistant ring 206 is provided on the outside of the abutment ring 201. The wear-resistant ring 206 is used for the outermost wear-resistant effect of the cable body 1.

[0023] A connecting rubber layer 204 is provided on the outside of the cable body 1. An outer rubber ring 101 is provided on the outside of the connecting rubber layer 204. An insulation layer 203 is provided on the outside of the outer rubber ring 101. A tensile rubber ring 2 is provided on the outside of the insulation layer 203. Annular grooves 205 are arranged sequentially on the outside of the cable body 1. An abutment ring 201 is provided inside the annular groove 205. A connecting ring 202 is sleeved on the outside of the tensile rubber ring 2. The connecting ring 202 is provided on both sides of the abutment ring 201. A soft rubber ring 209 is provided on the outside of the connecting ring 202. A heat insulation ring 208 is provided on the outside of the soft rubber ring 209. The outside of the abutment ring 201 abuts against the inside of the soft rubber ring 209. A protective ring 207 is provided on the outside of the heat insulation ring 208. A wear-resistant ring 206 is provided on the outside of the protective ring 207.

[0024] By placing the abutment ring 201 between the two sets of connecting rings 202, the connecting ring 202 simultaneously connects the tensile rubber ring 2 and the soft rubber ring 209. The abutment ring 201 abuts against the inner side of the soft rubber ring 209. The abutment ring 201 is made of soft rubber. When the cable is subjected to bending and compressive forces, the abutment ring 201 will buffer the compressive force. Furthermore, the abutment ring 201 can reduce the mutual compression area within the internal structure of the cable body 1, thereby reducing the compressive force between the outer protective layers of the cable body 1 during bending and pulling. Simultaneously, the soft rubber material of the tensile rubber ring 2 can increase the bending range of the cable body 1, and the excess space outside the abutment ring 201 can also... The compression pressure at the bending point during the bending of the cable body 1 is reduced, thereby increasing the overall flexibility of the cable and not hindering the installation of the insulation layer 203 and the heat insulation ring 208. At the same time, the abutment ring 201 and the connecting ring 202 can increase the gap between the internal layers, which can adapt to the thermal expansion and contraction between materials when the ambient temperature changes. By setting the abutment ring 201, the compression area between the external protective layers of the cable body 1 is reduced. At the same time, the abutment ring 201, together with the tensile rubber ring 2, increases the bending space under the action of multiple gaps outside the abutment ring 201, thereby improving the flexibility of the cable body 1. Furthermore, the connecting ring 202 connects the layers outside the abutment ring 201, so the flexible setting of the abutment ring 201 will not affect the connection effect between the tensile rubber ring 2 and other layers.

[0025] In summary, compared with existing technologies, it has the following beneficial effects:

[0026] By placing the abutment ring 201 between the two sets of connecting rings 202, the abutment ring 201 will abut against the inner side of the soft rubber ring 209. When the cable as a whole is subjected to bending and compressive force, the abutment ring 201 will abut against the inner side of the soft rubber ring 209. At this time, the soft rubber material of the abutment ring 201 will buffer the compressive force. The abutment ring 201 can reduce the mutual compression area of ​​the internal structure of the cable body 1, and the extra space outside the abutment ring 201 will also reduce the compressive force at the bending point during the bending process of the cable body 1, thereby increasing the overall flexibility of the cable. By setting the abutment ring 201, the compression area between the outer protective layers of the cable body 1 is reduced. At the same time, the abutment ring 201, together with the tensile rubber ring 2, increases the bending space under the action of multiple gaps outside the abutment ring 201, thereby improving the flexibility of the cable body 1. Furthermore, the connecting ring 202 connects the outer layer of the abutment ring 201, so the flexible setting of the abutment ring 201 will not affect the connection effect between the tensile rubber ring 2 and other layers.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength, tensile-resistant fire-resistant cable, comprising a cable body (1), wherein an outer rubber ring (101) is provided on the outside of the cable body (1), characterized in that, The outer rubber ring (101) is provided with a tensile mechanism on its exterior, the tensile mechanism including; A tensile rubber ring (2) is disposed outside the outer rubber ring (101), and the tensile rubber ring (2) improves the external tensile strength of the cable body (1); A retaining ring (201) is disposed inside the tensile rubber ring (2), and the retaining ring (201) is used to reduce the compression area of ​​the outer rubber ring (101) during the pulling process; A wear-resistant ring (206) is disposed outside the abutment ring (201), the wear-resistant ring (206) is used for the outermost wear-resistant effect of the cable body (1).

2. The high-strength tensile fire-resistant cable according to claim 1, characterized in that: The cable body (1) is provided with a connecting adhesive layer (204) on the outside, the outer rubber ring (101) is provided on the outside of the connecting adhesive layer (204), the outer rubber ring (101) is provided with an insulating layer (203) on the outside, and the tensile rubber ring (2) is provided on the outside of the insulating layer (203).

3. The high-strength tensile fire-resistant cable according to claim 1, characterized in that: The cable body (1) has annular grooves (205) arranged in sequence on the outside. The abutment ring (201) is located inside the annular groove (205). The tensile rubber ring (2) is fitted with a connecting ring (202) on the outside. The connecting ring (202) is located on both sides of the abutment ring (201).

4. A high-strength tensile fire-resistant cable according to claim 3, characterized in that: The connecting ring (202) is provided with a soft rubber ring (209) on the outside, and a heat insulation ring (208) is provided on the outside of the soft rubber ring (209). The outside of the abutment ring (201) abuts against the inside of the soft rubber ring (209).

5. A high-strength tensile fire-resistant cable according to claim 4, characterized in that: The heat insulation ring (208) is provided with a protective ring (207) on the outside, and the wear-resistant ring (206) is provided on the outside of the protective ring (207).