Wear-resistant flame-retardant cable

Abstract

The utility model relates to a wear-resistant flame-retardant cable, which belongs to the technical field of cables, and comprises a sheath layer and a cable positioned in the sheath layer, a wear-resistant flame-retardant mechanism is arranged between the sheath layer and the cable, the wear-resistant flame-retardant mechanism comprises flame-retardant particles filled between the sheath layer and the cable, a heat-insulating layer is fixedly mounted on the outer surface of the sheath layer, and the heat-insulating layer is arranged between the sheath layer and the cable. And a flame-retardant layer is fixedly mounted on the outer side surface of the heat insulation layer, and a protective screen mesh layer is fixedly mounted on the outer side surface of the flame-retardant layer. According to the wear-resistant flame-retardant cable, the flame-retardant particles are arranged between the sheath layer and the cable, the thermal insulation layer, the flame-retardant layer, the protective screen layer, the wear-resistant flame-retardant layer and the wear-resistant ring are arranged on the sheath layer, and the flame retardant is arranged in the flame-retardant layer, so that the cable can be protected and flame-retardant through multiple flame-retardant measures; and through the protective screen mesh layer, the wear-resistant flame-retardant layer and the wear-resistant ring, the wear resistance of the whole cable can be improved, and the cable can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a wear-resistant and flame-retardant cable. Background Art

[0002] Cables are an indispensable component of modern power, communication and other systems. They are mainly composed of conductors, sheath layers, sheaths and fillers. Different cables may also include shielding layers and fillers. Conductors are usually made of metals with good conductivity such as copper or aluminum and are used to transmit current; the sheath layer is used to prevent current from leaking to the outside and ensure the safe transmission of electrical energy; the sheath provides physical protection for the conductor to prevent the cable from being damaged during installation or use.

[0003] Publication No. CN220569430U discloses a wear-resistant, flame-retardant cable, comprising a centrally located conductor, an outer protective layer, and an outer wear-resistant layer. The protective layer comprises, from the inside out, a mica tape, a sheath, and a flame-retardant layer. The sheath is internally provided with a support ring for shaping. The wear-resistant layer comprises, from the inside out, a nylon layer and a chemical protective layer. The inner ring of the nylon layer is provided with a semicircular protrusion that extends into the flame-retardant layer. The beneficial effects of this utility model include: the use of multiple flame-retardant, insulating, and wear-resistant protective designs improves the overall performance of the cable; the use of support rings and support strips enhances the overall support strength of the cable, making it less susceptible to damage; and the use of a chemical layer prevents rats and insects from gnawing at the cable.

[0004] The above patent improves the shortcomings of the prior art that the cable insulation and flame retardant layer are too simple, resulting in poor flame retardancy and wear resistance of the cable. This application provides another implementation scheme for the problems raised in the above patent and makes further improvements. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides a wear-resistant and flame-retardant cable with the advantages of good flame-retardant and wear-resistant performance, which solves the problem in the existing technology that the cable insulation and flame-retardant layer are too single, resulting in poor flame-retardant and wear-resistant performance of the cable.

[0006] To achieve the above object, the present invention provides the following technical solutions: a wear-resistant and flame-retardant cable, comprising a sheath layer and a cable located within the sheath layer, wherein a wear-resistant and flame-retardant mechanism is provided between the sheath layer and the cable;

[0007] The wear-resistant and flame-retardant mechanism includes flame-retardant particles filled between the sheath layer and the cable, a heat insulation layer is fixedly installed on the outer surface of the sheath layer, a flame-retardant layer is fixedly installed on the outer surface of the heat insulation layer, a protective wire mesh layer is fixedly installed on the outer surface of the flame-retardant layer, a wear-resistant and flame-retardant layer is fixedly installed on the outer surface of the protective wire mesh layer, and an anti-wear ring is fixedly installed on the outer surface of the wear-resistant and flame-retardant layer.

[0008] Furthermore, a cavity is provided inside the wall of the flame retardant layer, and the cavity is filled with a flame retardant.

[0009] Furthermore, there are multiple anti-wear rings, and two adjacent anti-wear rings are evenly distributed on the outer surface of the wear-resistant and flame-retardant layer.

[0010] Furthermore, the thickness of the sheath layer and the thermal insulation layer is the same, and the thickness of the sheath layer and the thermal insulation layer is between 1 mm and 1.5 mm.

[0011] Furthermore, the thickness of the flame retardant layer is two millimeters, and the distance between the opposite side surfaces inside the cavity is one millimeter.

[0012] Furthermore, the thickness of the wear-resistant and flame-retardant layer is 0.5 mm.

[0013] Furthermore, the cable consists of a wire core and an insulating layer wrapped around the outer surface of the wire core.

[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0015] The wear-resistant flame-retardant cable has flame-retardant particles between the sheath layer and the cable, a heat insulation layer, a flame-retardant layer, a protective wire mesh layer, a wear-resistant flame-retardant layer and an anti-wear ring on the sheath layer, and a flame retardant inside the flame-retardant layer. The multiple flame-retardant measures can protect the cable from flame retardancy. The protective wire mesh layer, the wear-resistant flame-retardant layer and the anti-wear ring can improve the overall wear resistance of the cable, which is beneficial to protecting the cable. It solves the problem in the prior art that the cable insulation and flame-retardant layers are too single, resulting in poor flame retardancy and wear resistance of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the appearance structure of the utility model.

[0018] In the figure: 1. Sheath layer; 2. Cable; 3. Flame retardant particles; 4. Thermal insulation layer; 5. Flame retardant layer; 6. Protective mesh layer; 7. Wear-resistant flame retardant layer; 8. Anti-wear ring; 9. Cavity; 10. Flame retardant; 11. Wire core; 12. Insulation layer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 2 In this embodiment, a wear-resistant flame-retardant cable includes a sheath layer 1 and a cable 2 located in the sheath layer 1. The cable 2 is composed of a wire core 11 and an insulating layer 12 wrapped around the outer surface of the wire core 11. A wear-resistant flame-retardant mechanism is provided between the sheath layer 1 and the cable 2. The wear-resistant flame-retardant mechanism includes flame-retardant particles 3 filled between the sheath layer 1 and the cable 2. A heat-insulating layer 4 is fixedly installed on the outer surface of the sheath layer 1. The thickness of the sheath layer 1 and the heat-insulating layer 4 is the same, and the thickness of the sheath layer 1 and the heat-insulating layer 4 is between 1 mm and 1.5 mm. The outer surface of the heat-insulating layer 4 is fixedly installed. There is a flame retardant layer 5, a cavity 9 is opened inside the wall of the flame retardant layer 5, the cavity 9 is filled with a flame retardant 10, the thickness of the flame retardant layer 5 is two millimeters, the distance between the opposite side surfaces inside the cavity 9 is one millimeter, the outer surface of the flame retardant layer 5 is fixedly installed with a protective wire mesh layer 6, the outer surface of the protective wire mesh layer 6 is fixedly installed with a wear-resistant flame retardant layer 7, the thickness of the wear-resistant flame retardant layer 7 is 0.5 millimeters, the outer surface of the wear-resistant flame retardant layer 7 is fixedly installed with an anti-wear ring 8, the number of anti-wear rings 8 is multiple, and two adjacent anti-wear rings 8 are evenly distributed on the outer surface of the wear-resistant flame retardant layer 7.

[0021] The insulating layer 12 in this embodiment is made of Silane cross-linked polyethylene insulation material, which has excellent electrical properties, heat resistance and aging resistance, and is conducive to ensuring the current flowability of the core 11.

[0022] It should be noted that the sheath layer 1 is made of polyvinyl chloride, which has good insulation performance and wear resistance.

[0023] The flame retardant particles 3 in this embodiment are made of aluminum hydroxide, which decomposes at high temperatures to release water vapor and aluminum oxide, forming a protective layer on the surface of the cable 2 to prevent the spread of flames.

[0024] It should be noted that the heat insulation layer 4 in this embodiment is made of glass fiber, which is conducive to the use of the cable in a high-temperature environment.

[0025] The flame retardant layer 5 in this embodiment is made of flame retardant plastic.

[0026] It can be understood that the protective wire mesh layer 6 in this embodiment is made of a cylindrical sheath woven from steel wire with a diameter of 0.05 mm, and the surface aperture of the protective wire mesh layer 6 is not greater than one millimeter. The protective wire mesh layer 6 helps prevent sharp objects from penetrating the interior of the cable.

[0027] In order to improve the wear-resistant and flame-retardant properties of the cable surface, the wear-resistant and flame-retardant layer 7 in this embodiment is made of a composite of wear-resistant rubber and flame-retardant material.

[0028] The anti-wear ring 8 in this embodiment is made of wear-resistant plastic. The anti-wear ring 8 can reduce direct contact between the cable surface and objects, thereby achieving the purpose of wear-resistant protection of the cable surface.

[0029] It should be noted that the flame retardant 10 in this embodiment is made of a brominated flame retardant, which can release bromine gas at high temperatures to inhibit the spread of flames.

[0030] The working principle of the above embodiment is:

[0031] By arranging flame retardant particles 3, flame retardant layer 5 and flame retardant 10, the overall flame retardant performance of the cable can be improved, and the cable can be prevented from directly participating in combustion when a fire occurs. At the same time, the thermal insulation layer 4 can be used to improve the stability of the cable in a high-temperature environment. The protective wire mesh layer 6, wear-resistant flame retardant layer 7 and anti-wear ring 8 can improve the overall wear resistance of the cable, which is beneficial to improving the durability of the cable.

[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wear-resistant flame-retardant cable, comprising a sheath layer (1) and a cable (2) located within the sheath layer (1), characterized in that: A wear-resistant and flame-retardant structure is provided between the sheath layer (1) and the cable (2); The wear-resistant and flame-retardant structure comprises flame-retardant particles (3) filled between the sheath layer (1) and the cable (2); a heat-insulating layer (4) is fixedly mounted on the outer surface of the sheath layer (1); a flame-retardant layer (5) is fixedly mounted on the outer surface of the heat-insulating layer (4); a protective wire mesh layer (6) is fixedly mounted on the outer surface of the flame-retardant layer (5); a wear-resistant and flame-retardant layer (7) is fixedly mounted on the outer surface of the protective wire mesh layer (6); and an anti-wear ring (8) is fixedly mounted on the outer surface of the wear-resistant and flame-retardant layer (7).

2. The wear-resistant flame-retardant cable according to claim 1, characterized in that: A cavity (9) is provided inside the wall of the flame retardant layer (5), and the cavity (9) is filled with a flame retardant (10).

3. The wear-resistant flame-retardant cable according to claim 1, characterized in that: The number of the anti-wear rings (8) is multiple, and two adjacent anti-wear rings (8) are evenly distributed on the outer surface of the wear-resistant and flame-retardant layer (7).

4. The wear-resistant flame-retardant cable according to claim 1, characterized in that: The thickness of the sheath layer (1) and the heat insulation layer (4) is the same, and the thickness of the sheath layer (1) and the heat insulation layer (4) is between 1 mm and 1.5 mm.

5. The wear-resistant flame-retardant cable according to claim 2, characterized in that: The thickness of the flame retardant layer (5) is two millimeters, and the distance between the surfaces on opposite sides inside the cavity (9) is one millimeter.

6. The wear-resistant flame-retardant cable according to claim 1, characterized in that: The thickness of the wear-resistant and flame-retardant layer (7) is 0.5 mm.

7. The wear-resistant flame-retardant cable according to claim 1, characterized in that: The cable (2) consists of a wire core (11) and an insulating layer (12) wrapped around the outer surface of the wire core (11).

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