Composite fireproof cable

Abstract

The utility model discloses a composite fireproof cable, which comprises a cable body, the cable body comprises a sheath layer, a filler and a plurality of conductors, the plurality of conductors are all arranged in the filler, the sheath layer is arranged on the circumferential outer wall of the filler, the sheath layer comprises a fireproof layer, the fireproof layer comprises an aerogel felt, and the aerogel felt is arranged on the outer wall of the periphery of the filler. The outer wall of the circumference of the aerogel felt is wrapped by alkali-free glass fiber, the outer side of the alkali-free glass fiber is extruded by ceramic silicone rubber, the sheath layer further comprises a shielding layer, and the shielding layer is arranged on the outer side of the filler through the wrapping technology. According to the utility model, the cable can be prevented from catching fire, the fireproof function of the cable is realized, the cable can be prevented from being broken in a high-temperature environment, the use safety of the cable is improved, the cable can bear the puncture of plant root hairs, the waterproof function can be kept for a long time, and a high-strength waterproof layer can be formed, so that the waterproof function of the cable can be realized; and the use effect of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of folding machines, in particular to a composite fireproof cable. Background Art

[0002] A cable is an electrical energy or signal transmission device, usually consisting of several or groups of wires, used to transmit power or information from one place to another.

[0003] As disclosed in the patent number CN210606697U, a silicone rubber isolated fireproof cable, the existing technology has the problem that the fireproof effect of the cable is poor. In a high temperature environment, the cable will be damaged and broken, which not only affects normal use but also causes the risk of electric shock. In order to solve such problems, this application proposes a cable with a new structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a composite fireproof cable.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A composite fireproof cable comprises a cable body, wherein the cable body comprises a sheath layer, a filler and a plurality of conductors, wherein the plurality of conductors are arranged in the filler, the sheath layer is arranged on the circumferential outer wall of the filler, the sheath layer comprises a fireproof layer, and the fireproof layer comprises an aerogel felt, wherein the circumferential outer wall of the aerogel felt is wrapped with alkali-free glass fiber, and the outer side of the alkali-free glass fiber is extruded with ceramic silicone rubber.

[0007] As a further solution of the utility model, the sheath layer also includes a shielding layer, and the shielding layer is arranged on the outside of the filler through a wrapping process.

[0008] As a further solution of the utility model, a polyethylene film layer is formed on the outer side of the shielding layer through a wrapping process.

[0009] As a further solution of the utility model, the polyethylene film layer is located between the shielding layer and the fireproof layer.

[0010] As a further solution of the present invention, the shielding layer is a metal mesh formed by interlaced weaving of aluminum wires.

[0011] As a further solution of the utility model, a wear-resistant coating is provided on the outer side of the fireproof layer.

[0012] The beneficial effects of the utility model are:

[0013] 1. Through the setting of the fireproof layer, the fireproof layer is composed of ceramic silicone rubber, alkali-free glass fiber and aerogel felt. Ceramic silicone rubber is a new type of polymer refractory material. Alkali-free glass fiber is non-flammable and has good heat resistance. Aerogel felt is based on nano-silicon dioxide aerogel and is compounded with glass fiber wool or pre-oxidized fiber felt through a special process. It has the characteristics of inorganic fireproofing, so it can prevent the cable from catching fire and realize the fireproof function of the cable. At the same time, it can avoid the cable from breaking in a high temperature environment, thereby improving the safety of cable use.

[0014] 2. Through the setting of the polyethylene film layer, the polyethylene film layer has the dual functions of waterproofing and preventing plant roots from penetrating. It can withstand the puncture of plant roots and maintain the waterproof function for a long time. It can form a high-strength waterproof layer, thereby realizing the waterproof function of the cable and improving the use effect of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a composite fireproof cable proposed by the utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of a composite fireproof cable support frame proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the enlarged structure of part A of a composite fireproof cable proposed by the utility model.

[0018] In the figure: 1. wear-resistant coating; 2. fireproof layer; 3. polyethylene film layer; 4. shielding layer; 5. filler; 7. conductor; 8. ceramic silicone rubber; 9. alkali-free glass fiber; 10. aerogel felt. DETAILED DESCRIPTION

[0019] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of the application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0020] Reference Figure 1-Figure 3A composite fireproof cable comprises a cable body, the cable body comprises a sheath layer, a filler 5 and a plurality of conductors 7, the conductor 7 is a copper wire, the filler 5 is ethylene propylene rubber, the plurality of conductors 7 are arranged in the filler 5, the sheath layer is arranged on the circumferential outer wall of the filler 5, the sheath layer comprises a fireproof layer 2, the fireproof layer 2 comprises an aerogel felt 10, the circumferential outer wall of the aerogel felt 10 is wrapped with alkali-free glass fiber 9, the outer side of the alkali-free glass fiber 9 is extruded with ceramic silicone rubber 8, the ceramic silicone rubber 8 is a new type of polymer refractory material, the alkali-free glass fiber 9 is non-flammable and has good heat resistance, the aerogel felt 10 is made of nano-silica aerogel as the main material, and is composited with glass fiber wool or pre-oxidized fiber felt through a special process, and has the characteristics of inorganic fireproofing, so it can prevent the cable from catching fire and realize the fireproof function of the cable, and at the same time it can avoid the cable from breaking in a high temperature environment, thereby improving the safety of the cable use.

[0021] In the utility model, the sheath layer also includes a shielding layer 4, which is arranged on the outside of the filler 5 through a wrapping process. A polyethylene film layer 3 is formed on the outside of the shielding layer 4 through a wrapping process. The polyethylene film is arranged on the outside of the shielding layer 4 through a wrapping process to form the polyethylene film layer 3. The polyethylene film has the dual functions of waterproofing and preventing plant root penetration, can withstand plant root puncture, maintain the waterproof function for a long time, and can form a high-strength waterproof layer, thereby realizing the waterproof function of the cable. The polyethylene film layer 3 is located between the shielding layer 4 and the fireproof layer 2. The shielding layer 4 is a metal mesh woven by interlaced aluminum wires. The aluminum wires have a conductive function, thereby reducing the shielding of the alternating electromagnetic field penetrating into the designated area and realizing electromagnetic shielding. A wear-resistant coating 1 is provided on the outside of the fireproof layer 2, and the coating of the wear-resistant coating 1 is a polyurethane coating.

[0022] Working principle: multiple conductors 7 are closed, and then EPDM raw materials are used to form fillers 5 on the outside of the multiple conductors 7 through an extrusion process. Multiple aluminum wires are interlaced and woven into a mesh, and then the metal mesh woven from aluminum wires is arranged on the outside of the filler 5 through a wrapping process. The aluminum wire has a conductive function, thereby reducing the shielding of the alternating electromagnetic field penetrating into the designated area, thereby achieving electromagnetic shielding. A polyethylene film is arranged on the outside of the shielding layer 4 through a wrapping process to form a polyethylene film layer 3. The polyethylene film has the dual functions of waterproofing and preventing plant roots from penetrating, can withstand plant root puncture, maintain a waterproof function for a long time, and can form a high-strength waterproof layer, thereby achieving the waterproof function of the cable. The aerogel felt 10 is arranged on the outside of the polyethylene film layer 3 through a wrapping process, and the alkali-free glass fiber 9 is arranged through a wrapping process. The wrapping process is arranged on the outside of the aerogel felt 10, and the ceramic silicone rubber 8 is arranged on the outside of the alkali-free glass fiber 9 through the extrusion process, so that the fireproof layer 2 is formed under the cooperation of the ceramic silicone rubber 8, the alkali-free glass fiber 9 and the aerogel felt 10. The ceramic silicone rubber 8 is a new type of polymer refractory material, the alkali-free glass fiber 9 is non-flammable and has good heat resistance. The aerogel felt 10 is made of nano-silicon dioxide aerogel as the main material, and is compounded with glass fiber wool or pre-oxidized fiber felt through a special process. It has the characteristics of inorganic fireproofing, so it can prevent the cable from catching fire and realize the fireproof function of the cable. At the same time, it can avoid the cable from breaking in a high temperature environment, thereby improving the safety of the cable. Finally, polyurethane coating is sprayed on the outside of the fireproof layer 2 to form a wear-resistant coating 1, thereby making a cable.

[0023] The present invention has been described through the above-mentioned embodiments. Those skilled in the art will appreciate that the present invention is not limited to the above-mentioned embodiments, and more modifications may be made according to the teachings of the present invention. These modifications are all within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A composite fireproof cable, comprising a cable body, characterized in that: The cable body comprises a sheath layer, a filler (5) and a plurality of conductors (7), wherein the plurality of conductors (7) are arranged in the filler (5), the sheath layer is arranged on the circumferential outer wall of the filler (5), the sheath layer comprises a fireproof layer (2), the fireproof layer (2) comprises an aerogel felt (10), the circumferential outer wall of the aerogel felt (10) is wrapped with alkali-free glass fiber (9), and the outer side of the alkali-free glass fiber (9) is extruded with ceramic silicone rubber (8).

2. A composite fireproof cable according to claim 1, characterized in that: The sheath layer further comprises a shielding layer (4), and the shielding layer (4) is arranged on the outside of the filler (5) by a wrapping process.

3. A composite fireproof cable according to claim 2, characterized in that: The outer side of the shielding layer (4) is formed with a polyethylene film layer (3) through a wrapping process.

4. A composite fireproof cable according to claim 3, characterized in that: The polyethylene film layer (3) is located between the shielding layer (4) and the fireproof layer (2).

5. A composite fireproof cable according to claim 2, characterized in that: The shielding layer (4) is a metal mesh formed by interlaced weaving of aluminum wires.

6. A composite fireproof cable according to claim 1, characterized in that: The outer side of the fireproof layer (2) is provided with a wear-resistant coating (1).

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