CN218214748U

CN218214748U - Flexible fireproof cable

Info

Publication number: CN218214748U
Application number: CN202221197942.XU
Authority: CN
Inventors: 叶晓杰
Original assignee: Dongguan Tongbao Wire And Cable Co ltd
Current assignee: Dongguan Tongbao Wire And Cable Co ltd
Priority date: 2022-05-18
Filing date: 2022-05-18
Publication date: 2023-01-03
Anticipated expiration: 2032-05-18

Abstract

The utility model relates to a flexible fireproof cable, including enhancement core, cable core, fire-retardant layer, soft sheath, flame retardant coating, anti-pressure layer and wearing layer, the enhancement core sets up in the middle part of fire-retardant layer, and the cable core sets up in fire-retardant layer, and the cable core is a plurality of, and each cable core is along the circumference evenly distributed of enhancement core; the flame-retardant layer is provided with a plurality of through holes for containing flame-retardant powder, and the through holes and the cable cores are arranged in a staggered manner; the soft sheath is sleeved on the outer side of the flame-retardant layer, the fireproof layer is sleeved on the outer side of the soft sheath, one side of the pressure-resistant layer is connected with the fireproof layer, and the other side of the pressure-resistant layer is connected with the wear-resistant layer. The flexible fireproof cable improves the tensile resistance through the reinforcing core, and the through holes filled with the flame-retardant powder and the cable core are arranged in a staggered manner, so that the combustion can be blocked; multiple protection is achieved through the flame-retardant layer, the flame-retardant powder and the fireproof layer, and the fireproof performance is good; the high flexibility of the cable is ensured through the soft sheath, the cable cannot be easily flattened through the pressure-resistant layer, the wear resistance is increased through the wear-resistant layer, and the service life is prolonged; this flexible fireproof cable compressive property is good, the function is various.

Description

Flexible fireproof cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a flexible fireproof cable.

Background

In recent years, due to the national emphasis on environmental protection and fire safety, the research and development and design of the wire and cable industry are developing into the fields of environmental protection, safety use performance and the like. The flexible fireproof cable can keep power supply in a fire disaster and bear fire water spraying and heavy object falling impact, so that the flexible fireproof cable is widely used in the building field with higher environmental protection requirement and stricter safety factor grade requirement in design.

The existing flexible fireproof cable still has insufficient fireproof performance, the cable core inside the cable cannot be subjected to the effect of blocking combustion after a fire occurs, the existing flexible fireproof cable is poor in compression resistance, and the inner cable core is prone to being broken when a heavy object falls and impacts, so that signal transmission is affected.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a flexible fireproof cable capable of blocking combustion and having excellent pressure resistance.

A flexible fireproof cable comprises a reinforcing core, a cable core, a flame-retardant layer, a soft sheath, a fireproof layer, a pressure-resistant layer and a wear-resistant layer, wherein the reinforcing core is arranged in the middle of the flame-retardant layer, the cable core is arranged in the flame-retardant layer, the number of the cable cores is multiple, and the cable cores are uniformly distributed along the circumferential direction of the reinforcing core; the flame-retardant layer is provided with a plurality of through holes for containing flame-retardant powder, and the through holes and the cable core are arranged in a staggered manner; the soft sheath is sleeved on the outer side of the flame-retardant layer, the fireproof layer is sleeved on the outer side of the soft sheath, one side of the compression-resistant layer is connected with the fireproof layer, and the other side of the compression-resistant layer is connected with the wear-resistant layer.

In one embodiment, the reinforcing core is made of steel wire.

In one embodiment, the flame retardant powder is aluminum hydroxide powder.

In one embodiment, the flame retardant layer is made of brominated epoxy resin.

In one embodiment, the flexible sheath is made of aluminum.

In one embodiment, the fire-proof layer is made of an inorganic mineral insulating material.

In one embodiment, the pressure resistant layer is made of polyvinyl chloride.

In one embodiment, the wear resistant layer is made of thin steel wires.

In one embodiment, the cable further comprises a shielding layer, wherein the shielding layer covers the cable core; the shielding layer is a plurality of, the shielding layer with the cable core one-to-one sets up.

In one embodiment, the shielding layer is wrapped by copper strips.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the flexible fireproof cable improves the tensile resistance of the cable through the reinforcing core, and the through holes filled with the flame-retardant powder and the cable core are arranged in a staggered manner, so that the combustion can be blocked; multiple protection is achieved through the flame-retardant layer, the flame-retardant powder and the fireproof layer, and the fireproof performance is good; the high flexibility of the cable is ensured through the soft sheath, the cable cannot be easily flattened through the pressure-resistant layer, the wear resistance of the surface of the cable is increased through the wear-resistant layer, and the service life is prolonged; this flexible fireproof cable can block that burning, compressive property are good, the function is various.

Drawings

Fig. 1 is a schematic perspective view of a flexible fireproof cable according to a preferred embodiment of the present invention;

fig. 2 is a cross-sectional view of the flexible fire-rated cable of fig. 1.

Reference is made to the accompanying drawings in which:

a flexible fire-resistant cable 100;

the cable comprises a reinforced core 10, a cable core 20, a flame-retardant layer 30, flame-retardant powder 31, a soft sheath 40, a flame-retardant layer 50, a compression-resistant layer 60, a wear-resistant layer 70 and a shielding layer 80.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully below. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a number of an element is referred to as "a plurality," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a flexible fireproof cable 100 according to an embodiment of the present invention includes a reinforcing core 10, a cable core 20, a flame retardant layer 30, a flexible sheath 40, a flame retardant layer 50, a compression resistant layer 60, and a wear resistant layer 70, wherein the reinforcing core 10 is disposed in the middle of the flame retardant layer 30, the cable cores 20 are disposed in the flame retardant layer 30, the cable cores 20 are multiple, and the cable cores 20 are uniformly distributed along the circumferential direction of the reinforcing core 10; the flame retardant layer 30 is provided with a plurality of through holes (not shown) to contain the flame retardant powder 31, the through holes being staggered with the cable core 20; the soft sheath 40 is sleeved on the outer side of the flame retardant layer 30, the fireproof layer 50 is sleeved on the outer side of the soft sheath 40, one side of the compression resistant layer 60 is connected with the fireproof layer 50, and the other side is connected with the wear-resistant layer 70; the flexible fireproof cable 100 of the embodiment improves the tensile strength of the cable through the reinforcing core 10, and the through holes filled with the flame-retardant powder 31 and the cable core 20 are arranged in a staggered manner, so that combustion can be blocked; the flame-retardant layer 30, the flame-retardant powder 31 and the fireproof layer 50 play multiple roles in protection, and the fireproof performance is good; the high flexibility of the cable is ensured through the soft sheath 40, the cable is not easily flattened through the pressure-resistant layer 60, the wear resistance of the surface of the cable is increased through the wear-resistant layer 70, and the service life is prolonged; this flexible fireproof cable 100 can block the burning, compressive property is good, the function is various.

As shown in fig. 1 and fig. 2, in the present embodiment, the reinforced core 10 is disposed in the middle of the flame retardant layer 30, and optionally, the reinforced core 10 is made of steel wire, so that the tensile strength of the cable is improved, and at the same time, the high flexibility of the cable is ensured, and the service life of the cable is further improved. In one embodiment, the cable core 20 is disposed in the flame retardant layer 30, the cable core 20 is plural, and each cable core 20 is uniformly distributed along the circumference of the reinforcing core 10; optionally, there are three cable cores 20. The flame retardant layer 30 is provided with a plurality of through holes (not shown) for containing the flame retardant powder 31, and the through holes are staggered with the cable core 20 and can block combustion; optionally, the flame retardant layer 30 is made of brominated epoxy resin, the flame retardant powder 31 is aluminum hydroxide powder, and the aluminum hydroxide has flame retardant, smoke suppression and filling functions, so that good oxygen insulation and flame retardant properties are achieved, and the aluminum hydroxide powder is heated and decomposed to generate steam, so that the combustion is blocked.

In an embodiment, the soft sheath 40 is sleeved outside the flame retardant layer 30, and optionally, the soft sheath 40 is made of aluminum material, and has the characteristics of resisting mechanical impact and flexible bending, so that the bending radius of the cable is increased. The fireproof layer 50 is sleeved outside the soft sheath 40, one side of the compression-resistant layer 60 is connected with the fireproof layer 50, and the other side is connected with the wear-resistant layer 70. Optionally, the fireproof layer 50 is made of an inorganic mineral insulating material, and plays a role in isolating external flame and temperature from acting on the cable core 20, preventing the cable core 20 from being fused due to overheating, and protecting the inner cable core 20 from continuing to transmit electric energy or keeping a control circuit smooth in case of a fire; further, the compression-resistant layer 60 is made of polyvinyl chloride, so that the cable cannot be easily flattened; the wear-resistant layer 70 is made of thin steel wires, so that the cable has good wear resistance, the tensile capacity of the cable is improved, the high flexibility of the cable is guaranteed, and the service life of the cable is further prolonged.

The flexible fireproof cable 100 further comprises a shielding layer 80, and the shielding layer 80 covers the cable core 20 to avoid interference of external signals; optionally, a plurality of shielding layers 80 are provided, the shielding layers 80 are arranged in one-to-one correspondence with the cable cores 20, each cable core 20 has an independent shielding layer 80, and interference between the shielding layers 80 is avoided; further, the shielding layer 80 is formed by wrapping a copper tape.

The flexible fireproof cable 100 of the utility model improves the tensile strength of the cable through the reinforcing core 10, and the through holes filled with the flame-retardant powder 31 are arranged in a staggered way with the cable core 20, so that the combustion can be blocked; the flame-retardant layer 30, the flame-retardant powder 31 and the fireproof layer 50 play multiple roles in protection, and the fireproof performance is good; the high flexibility of the cable is ensured through the soft sheath 40, the cable is not easily flattened through the pressure-resistant layer 60, the wear resistance of the surface of the cable is increased through the wear-resistant layer 70, and the service life is prolonged; this flexible fireproof cable 100 can block the burning, compressive property is good, the function is various.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A flexible fireproof cable is characterized by comprising a reinforcing core, cable cores, a flame-retardant layer, a soft sheath, a fireproof layer, a pressure-resistant layer and a wear-resistant layer, wherein the reinforcing core is arranged in the middle of the flame-retardant layer; the flame-retardant layer is provided with a plurality of through holes for containing flame-retardant powder, and the through holes and the cable cores are arranged in a staggered manner; the soft sheath is sleeved on the outer side of the flame-retardant layer, the fireproof layer is sleeved on the outer side of the soft sheath, one side of the pressure-resistant layer is connected with the fireproof layer, and the other side of the pressure-resistant layer is connected with the wear-resistant layer.

2. The flexible fire-rated cable of claim 1, wherein the reinforcing core is made of steel wire.

3. The flexible fire cable of claim 1, wherein the fire retardant powder is aluminum hydroxide powder.

4. The flexible fire-protected cable of claim 1, wherein said flame-retardant layer is made of brominated epoxy.

5. The flexible fire-resistant cable according to claim 1, wherein said flexible sheath is made of aluminum.

6. The flexible fire-resistant cable according to claim 1, wherein said fire-resistant layer is made of an inorganic mineral insulating material.

7. The flexible fire-rated cable of claim 1, wherein the crush-resistant layer is made of polyvinyl chloride.

8. The flexible fire-resistant cable according to claim 1, wherein said abrasion-resistant layer is made of fine steel wire.

9. The flexible fireproof cable of claim 1, further comprising a shielding layer covering the cable core; the shielding layer is a plurality of, the shielding layer with the cable core one-to-one sets up.

10. The flexible fireproof cable of claim 9, wherein the shielding layer is wrapped with copper tape.