High-flame-retardant environment-friendly cable

Abstract

The utility model discloses a high-flame-retardant environment-friendly cable, which comprises a conductive cable core, a rubber filling layer, a PVC (polyvinyl chloride) insulating layer, a woven anti-friction layer I, an insulating sealing layer, a buffer layer, a metal smoke-blocking sealing layer, a woven anti-friction layer II, an anti-extrusion shell, a flame-retardant layer and an insulating coating outer layer, the rubber filling layer is coated with the PVC insulating layer, the first woven anti-friction layer is coated with the PVC insulating layer, the first woven anti-friction layer is coated with the insulating sealing layer, the insulating sealing layer is coated with the buffer layer, and the buffer layer is coated with the metal smoke blocking sealing layer. The utility model belongs to the technical field of cable equipment, particularly relates to a high-flame-retardant environment-friendly cable, and effectively solves the problems that a cable in the current market can prevent fire from spreading after a fire disaster occurs, but a large amount of dense smoke is generated when the cable is burnt, the dense smoke is diffused, the sight is influenced, and the rescue work is slow.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable equipment, in particular to a highly flame-retardant environmentally friendly cable. Background Art

[0002] With the continuous occurrence of fires, the popularization of fireproof cables will be realized in recent years. Fireproof cables are cables that, under specified test conditions, the sample is burned. After the test fire source is removed, the spread of the flame is only within a limited range, and the residual flame or residual burning can be extinguished within a limited time. In the case of a fire, it may be burned and unable to operate, but it can prevent the spread of the fire. However, the existing cables can prevent the spread of fire after a fire occurs, but when burned, a large amount of thick smoke will be generated, which will affect the line of sight and cause delays in rescue work. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model proposes a highly flame retardant and environmentally friendly cable, which effectively solves the problem that the cables on the current market can prevent the spread of fire after a fire occurs, but will produce a large amount of thick smoke when burned, which will affect the line of sight and delay the rescue work.

[0004] The technical solution adopted by the utility model is as follows: the utility model proposes a highly flame-retardant environmentally friendly cable, comprising a conductive cable core, a rubber filling layer, a PVC insulating layer, a braided anti-friction layer 1, an insulating sealing layer, a buffer layer, a metal smoke-proof sealing layer, a braided anti-friction layer 2, an anti-extrusion shell, a flame-retardant layer and an insulating outer layer, wherein the rubber filling layer is coated on the conductive cable core, the PVC insulating layer is coated on the rubber filling layer, the braided anti-friction layer 1 is coated on the PVC insulating layer, and the insulating sealing layer The coating is arranged on the first woven anti-friction layer, the buffer layer is coated on the insulating sealing layer, the metal smoke-barrier sealing layer is coated on the buffer layer, and the metal smoke-barrier sealing layer has the function of sealing and flame retardancy, the second woven anti-friction layer is coated on the metal smoke-barrier sealing layer, the anti-extrusion shell is coated on the second woven anti-friction layer, the flame-retardant layer is coated on the anti-extrusion shell, and the flame-retardant layer has the function of flame retardancy, the insulating coating outer layer is coated on the flame-retardant layer, and the insulating coating outer layer has the function of reducing combustion and smoke.

[0005] In order to achieve the flame retardant effect, the outer layer of the insulating coating is made of polyvinyl chloride as the base material, mixed with flame retardant, HCL absorbent and smoke suppressant.

[0006] Preferably, the metal smoke-proof sealing layer is arranged between the second braided anti-friction layer and the buffer layer, the rubber filling layer is arranged between the PVC insulation layer and the conductive cable core, and the flame-retardant layer is arranged between the insulating coating outer layer and the anti-extrusion shell.

[0007] In order to better achieve the internal flame retardant effect, the metal smoke barrier sealing layer is made of copper material, which has high ductility and melting point and can prevent the flame from burning inward.

[0008] In order to achieve the purpose of insulation more quickly, the outer side of the conductive cable core is filled with an insulating rubber filling layer, and the outer side of the rubber filling layer is coated with a PVC insulating layer to achieve multi-layer insulation.

[0009] The beneficial effects achieved by the utility model using the above structure are as follows: This scheme proposes a highly flame-retardant and environmentally friendly cable, the metal smoke-proof sealing layer and the anti-extrusion shell are metal layer sealing internal filling materials, and the outer layer of the insulating coating is made of polyvinyl chloride as the base material, mixed with flame retardants, absorbents and smoke suppressants, which can effectively flame retard and suppress smoke, and avoid increasing the difficulty of rescue. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of a highly flame-retardant environmentally friendly cable proposed by the utility model;

[0011] Figure 2 The utility model is a schematic diagram of the cross-sectional structure of a highly flame-retardant and environmentally friendly cable.

[0012] Among them, 1. Conductive cable core, 2. Rubber filling layer, 3. PVC insulation layer, 4. Braided anti-friction layer 1, 5. Insulation sealing layer, 6. Buffer layer, 7. Metal smoke barrier sealing layer, 8. Braided anti-friction layer 2, 9. Anti-extrusion shell, 10. Flame retardant layer, 11. Insulation coating outer layer.

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0015] like Figure 1 and Figure 2As shown, the utility model proposes a highly flame-retardant environmentally friendly cable, comprising a conductive cable core 1, a rubber filling layer 2, a PVC insulating layer 3, a braided anti-friction layer 4, an insulating sealing layer 5, a buffer layer 6, a metal smoke-proof sealing layer 7, a braided anti-friction layer 8, an anti-extrusion shell 9, a flame-retardant layer 10 and an insulating outer layer 11, the rubber filling layer 2 is coated on the conductive cable core 1, the PVC insulating layer 3 is coated on the rubber filling layer 2, the braided anti-friction layer 4 is coated on the PVC insulating layer 3, and the insulating sealing layer 5 is coated on the braided The woven anti-friction layer 4 is coated on the buffer layer 6, the metal smoke-barrier sealing layer 7 is coated on the buffer layer 6, and the metal smoke-barrier sealing layer 7 has the function of sealing and flame retardancy. The woven anti-friction layer 8 is coated on the metal smoke-barrier sealing layer 7, the anti-extrusion shell 9 is coated on the woven anti-friction layer 8, the flame-retardant layer 10 is coated on the anti-extrusion shell 9, and the flame-retardant layer 10 has the function of flame retardancy. The insulating outer layer 11 is coated on the flame-retardant layer 10, and the insulating outer layer 11 has the function of reducing combustion and smoke.

[0016] like Figure 1 As shown, the insulating outer layer 11 is made of polyvinyl chloride as a base material, mixed with flame retardant, HCL absorbent and smoke suppressant.

[0017] like Figure 1 and Figure 2 As shown, the metal smoke-proof sealing layer 7 is arranged between the braided anti-friction layer 8 and the buffer layer 6, the rubber filling layer 2 is arranged between the PVC insulation layer 3 and the conductive cable core 1, and the flame-retardant layer 10 is arranged between the insulating coating outer layer 11 and the anti-extrusion shell 9.

[0018] like Figure 2 As shown, the metal smoke barrier sealing layer 7 is made of copper material, which has high ductility and melting point and can prevent the flame from burning inwards.

[0019] like Figure 1 As shown, the outer side of the conductive cable core 1 is filled with an insulating rubber filling layer 2, and the outer side of the rubber filling layer 2 is covered with a PVC insulating layer 3 to achieve multi-layer insulation.

[0020] During specific use, the user uses this device. When a fire occurs, the fire source first burns the insulating outer layer 11. Since the insulating outer layer 11 contains flame retardants, absorbents, smoke suppressants and other ingredients, the burning of the insulating outer layer 11 is greatly reduced to prevent the spread of fire. At the same time, the burning of the insulating outer layer 11 will not produce thick smoke. When the insulating outer layer 11 is burned, the internal flame retardant layer 10 retards the flame. At the same time, since the inside of the cable is subjected to high-temperature baking, when the temperature reaches the ignition point, under the barrier effect of the metal smoke barrier sealing layer 7, the internal PVC insulating layer 3 and the rubber filling layer 2 will not burn even if they melt, which greatly reduces the spread of the disaster. The above is the use of the entire highly flame-retardant and environmentally friendly cable.

[0021] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0023] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A highly flame-retardant environmentally friendly cable, characterized by: It includes a conductive cable core, a rubber filling layer, a PVC insulating layer, a braided anti-friction layer 1, an insulating sealing layer, a buffer layer, a metal smoke-barrier sealing layer, a braided anti-friction layer 2, an anti-extrusion shell, a flame-retardant layer and an insulating outer layer, wherein the rubber filling layer is coated on the conductive cable core, the PVC insulating layer is coated on the rubber filling layer, the braided anti-friction layer 1 is coated on the PVC insulating layer, the insulating sealing layer is coated on the braided anti-friction layer 1, the buffer layer is coated on the insulating sealing layer, the metal smoke-barrier sealing layer is coated on the buffer layer, the braided anti-friction layer 2 is coated on the metal smoke-barrier sealing layer, the anti-extrusion shell is coated on the braided anti-friction layer 2, the flame-retardant layer is coated on the anti-extrusion shell, and the insulating outer layer is coated on the flame-retardant layer.

2. A highly flame-retardant environmentally friendly cable according to claim 1, characterized in that: The outer layer of the insulating coating is made of polyvinyl chloride as a base material, mixed with a flame retardant, an HCL absorbent and a smoke suppressant.

3. A highly flame-retardant environmentally friendly cable according to claim 2, characterized in that: The metal smoke-proof sealing layer is arranged between the second braided anti-friction layer and the buffer layer, the rubber filling layer is arranged between the PVC insulating layer and the conductive cable core, and the flame-retardant layer is arranged between the insulating sheath outer layer and the anti-extrusion shell.

4. A highly flame-retardant environmentally friendly cable according to claim 3, characterized in that: The metal smoke barrier sealing layer is made of copper material, which has high ductility and melting point and can prevent the flame from burning inwards.

5. A highly flame-retardant environmentally friendly cable according to claim 4, characterized in that: The outer side of the conductive cable core is filled with an insulating rubber filling layer, and the outer side of the rubber filling layer is coated with a PVC insulating layer to achieve multi-layer insulation.

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