CN216749408U

CN216749408U - Fireproof cable

Info

Publication number: CN216749408U
Application number: CN202122553909.8U
Authority: CN
Inventors: 陈怀勇; 孔洋; 宫廷; 张茹
Original assignee: Qufu Hongfei Cable Co ltd
Current assignee: Qufu Hongfei Cable Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-06-14
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses a fireproof cable, which belongs to the technical field of cables and comprises a cable core, wherein an inner protective sleeve is movably sleeved outside the cable core, a tensile layer is arranged on the outer side of the inner protective sleeve, an outer protective sleeve is arranged outside the inner protective sleeve, a flame-retardant layer is paved outside the outer protective sleeve, an isolation layer is arranged on the inner side of the outer protective sleeve, a thermal insulation layer is arranged inside the outer protective sleeve, and a protective layer is paved on the inner side of the outer protective sleeve; through setting up interior lag, can be at the in-process that fire prevention type cable used, according to the material characteristic of interior lag, high performance polyimide film has better high temperature resistant, resistant radiation, resistant chemical corrosion and electrical insulation performance, and when the cable core work produced heat, the lag played certain guard action to the cable in using, prevented that the inside high temperature that produces of cable from, lead to the problem that the cable broke down to the life of cable has been improved.

Description

Fireproof cable

Technical Field

The utility model belongs to the technical field of cables, and particularly relates to a fireproof cable.

Background

The cable is made of one or more mutually insulated conductors and an outer insulating protection layer, electric power or information is transmitted to a wire at another position from one position, the cable is formed by twisting a plurality of or a plurality of groups of wires like a rope, each group of wires are mutually insulated and often twisted around a center, the whole outer surface is wrapped by a high-insulating covering layer, the cable has the characteristics of internal electrification and external insulation, and meanwhile, the types and functions of the cables are different according to market demands.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a fire-resistant cable, which solves the above-mentioned problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire prevention type cable, includes the cable core, the inside lag has been cup jointed in the outside activity of cable core, the outside of inside lag is provided with the tensile layer, and the outside of inside lag is provided with outer lag, fire-retardant layer has been laid to the outside of outer lag, and the inboard of outer lag is provided with the isolation layer, the inside of outer lag is provided with the insulating layer, and the inoxidizing coating has been laid to the inboard of outer lag.

As a preferred embodiment, the cable core is adapted to an inner protection sleeve, and the inner protection sleeve is made of a high-performance polyimide film.

In a preferred embodiment, the tensile layer is made of a woven steel wire mesh, and the tensile layer is fixedly connected with the inner protective sleeve.

As a preferred embodiment, the isolation layer is made of polystyrene butadiene copolymer, the isolation layer is matched with the outer protective sleeve, and the outer protective sleeve is movably sleeved with the inner protective sleeve.

As a preferred embodiment, the material of the flame-retardant layer is a fire-retardant coating, the flame-retardant layer is fixedly sleeved with the outer side of the outer protective sleeve, the material of the thermal insulation layer is a high-temperature resistant material, and the thermal insulation layer is fixedly connected with the flame-retardant layer.

In a preferred embodiment, the protective layer is made of an insulating material, and the protective layer is fixedly connected with the inner side of the outer protective sleeve.

Compared with the prior art, the utility model has the beneficial effects that:

according to the fireproof cable, the flame-retardant layer and the heat-insulating layer are arranged, so that the flame-retardant layer can be used for preventing the cable from igniting when the fireproof cable is in use and under the conditions of fire and high-temperature environment, and the heat-insulating layer can be used for isolating the external high temperature, so that the problem that the cable is influenced by the outside and is ignited is avoided, and the fireproof performance of the cable is improved;

according to the fireproof cable, the outer protective sleeve is arranged, the isolation layer can be used for protecting the outside of the cable under the action of the isolation layer in the using process of the fireproof cable, and the isolation layer has the advantages of small rolling resistance, excellent wet-skid resistance and wear resistance and the like, so that the phenomenon that the cable is easily damaged due to the fact that the fireproof cable is abraded by the outside is avoided, and the wear resistance of the fireproof cable is improved;

this fire prevention type cable, through setting up interior lag, can be at the in-process that fire prevention type cable used, according to the material characteristic of interior lag, high performance polyimide film has better high temperature resistant, resistant radiation, resistant chemical corrosion and electrical insulation performance, when cable core work produced heat, use interior lag to play certain guard action to the cable, prevent the inside high temperature that produces of cable, lead to the problem that the cable broke down to the life of cable has been improved.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a front cross-sectional view of the structure of the present invention;

FIG. 3 is an enlarged view of the position A of FIG. 2 according to the present invention.

In the figure: 1. a cable core; 2. an inner protective sleeve; 3. a tensile layer; 4. an outer protective sleeve; 5. a flame retardant layer; 6. an isolation layer; 7. a thermal insulation layer; 8. and (4) a protective layer.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions, and simple modifications of the method of the present invention based on the concept of the present invention are within the scope of the claimed invention.

Referring to fig. 1 and 3, in order to improve the service life of the fireproof cable, the utility model provides the fireproof cable, which comprises a cable core 1, wherein an inner protective sleeve 2 is movably sleeved outside the cable core 1, the cable core 1 is matched with the inner protective sleeve 2, and the inner protective sleeve 2 is made of a high-performance polyimide film; through setting up interior lag 2, can be at the in-process that fire prevention type cable used, according to interior lag 2's material characteristic, high performance polyimide film has better high temperature resistant, resistant radiation, resistant chemical corrosion and electrical insulation performance, when 1 work production heat of cable core, use interior lag 2 to play certain guard action to the cable, prevent the inside high temperature that produces of cable, lead to the problem that the cable broke down to the life of cable has been improved.

Referring to fig. 1 and 2, in order to improve the mechanical strength of the fireproof cable body, a tensile layer 3 is disposed on the outer side of the inner protection sleeve 2, wherein the tensile layer 3 is made of a steel wire mesh grid, and the tensile layer 3 is fixedly connected with the inner protection sleeve 2; through setting up tensile layer 3, can be at the in-process that fire prevention type cable used, according to the material characteristic of tensile layer 3, use tensile layer 3, the processing is protected to the outside of interior lag 2, can strengthen the stretch-proofing ability of cable simultaneously, has avoided fire prevention type cable to receive the drawing of external force, cracked problem appears to the mechanical strength of fire prevention type cable body has been improved.

Referring to fig. 2 and 3, in order to improve the wear resistance of the fireproof cable, an outer protective sleeve 4 is disposed outside the inner protective sleeve 2, and an isolation layer 6 is disposed inside the outer protective sleeve 4, wherein the isolation layer 6 is made of polystyrene-butadiene copolymer, the isolation layer 6 is adapted to the outer protective sleeve 4, and the outer protective sleeve 4 is movably sleeved with the inner protective sleeve 2; through setting up outer lag 4, can be at the in-process that fire prevention type cable used, under the effect of isolation layer 6, use isolation layer 6 to protect the outside of cable and handle, and isolation layer 6 has advantages such as rolling resistance is little, wet skid resistance and wear resistance are excellent, has avoided fire prevention type cable to receive external wearing and tearing, leads to the cable to take place damaged phenomenon easily to the wearability of fire prevention type cable has been improved.

Referring to fig. 2 and 3, in order to improve the fireproof performance of the fireproof cable, a flame retardant layer 5 is laid outside the outer protective sleeve 4, and a heat insulation layer 7 is arranged inside the outer protective sleeve 4, wherein the flame retardant layer 5 is made of fireproof paint, the flame retardant layer 5 is fixedly sleeved with the outer side of the outer protective sleeve 4, the heat insulation layer 7 is made of high temperature resistant material, and the heat insulation layer 7 is fixedly connected with the flame retardant layer 5; through setting up fire-retardant layer 5, can be at the in-process that fire prevention type cable used, when meetting conflagration and high temperature environment's condition, use fire-retardant layer 5 to prevent that the cable from taking place to ignite, can use insulating layer 7 to keep apart external high temperature simultaneously, avoided the cable to receive external influence, take place the problem of igniting to the fire behavior of cable has been improved.

Referring to fig. 3, in order to improve the anti-interference performance of the fireproof cable, a protective layer 8 is laid on the inner side of the outer protective sleeve 4, wherein the protective layer 8 is made of an insulating material, and the protective layer 8 is fixedly connected to the inner side of the outer protective sleeve 4; through setting up inoxidizing coating 8, can be at the in-process that fire prevention type cable used, according to inoxidizing coating 8's material characteristic, use inoxidizing coating 8 to carry out insulation processing to the outside of cable for the cable is stable to be continuously worked, has avoided fire prevention type cable to receive external interference, the problem of breaking down, thereby has improved the interference killing feature of fire prevention type cable.

The working principle and the using process of the utility model are as follows: firstly, when meeting the conditions of fire and high-temperature environment, the flame-retardant layer 5 is used for preventing the cable from igniting, meanwhile, the thermal insulation layer 7 can be used for isolating the external high temperature, then according to the material characteristics of the inner protective sleeve 2, the high-performance polyimide film has better high temperature resistance, radiation resistance, chemical corrosion resistance and electrical insulation performance, when the cable core 1 works to generate heat, the inner protective sleeve 2 is used for protecting the cable to prevent the cable from generating overhigh temperature inside the cable to cause the cable to break down, then according to the material characteristics of the protective layer 8, the protective layer 8 is used for insulating the outside of the cable to ensure that the cable stably and continuously works, then when the cable is installed, the cable is stretched, the insulating layer 6 can be used for protecting the outside of the cable under the action of the insulating layer 6, and the insulating layer 6 has small rolling resistance, The fireproof cable has the advantages of being excellent in wet-skid resistance and wear resistance, avoiding the fireproof cable from being worn by the outside, leading to the cable to be damaged easily, then being capable of using the tensile layer 3 to protect the inside protective sleeve 2 according to the material characteristics of the tensile layer 3, simultaneously being capable of enhancing the tensile resistance of the cable, avoiding the fireproof cable from being stretched by external force, and solving the problem of breakage, thereby improving the using effect of the fireproof cable.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire prevention type cable, includes cable core (1), its characterized in that: inner protective cover (2) have been cup jointed in the outside activity of cable core (1), the outside of inner protective cover (2) is provided with tensile layer (3), and the outside of inner protective cover (2) is provided with outer lag (4), fire-retardant layer (5) have been laid to the outside of outer lag (4), and the inboard of outer lag (4) is provided with isolation layer (6), the inside of outer lag (4) is provided with insulating layer (7), and protective layer (8) have been laid to the inboard of outer lag (4).

2. A fire-resistant cable according to claim 1, wherein: the cable core (1) is matched with the inner protection sleeve (2), and the inner protection sleeve (2) is made of a high-performance polyimide film.

3. A fire-resistant cable according to claim 1, wherein: the tensile layer (3) is made of a steel wire mesh grid, and the tensile layer (3) is fixedly connected with the inner protective sleeve (2).

4. A fire-resistant cable according to claim 1, wherein: the isolation layer (6) is made of polystyrene butadiene copolymer, the isolation layer (6) is matched with the outer protective sleeve (4), and the outer protective sleeve (4) is movably sleeved with the inner protective sleeve (2).

5. A fire-resistant cable according to claim 1, wherein: the material of fire-retardant layer (5) is fire retardant coating, and fire-retardant layer (5) and the outside of outer lag (4) are fixed cup joints, the material of insulating layer (7) is high temperature resistant material, and fixed connection between insulating layer (7) and fire-retardant layer (5).

6. A fire-resistant cable according to claim 1, wherein: the protective layer (8) is made of an insulating material, and the protective layer (8) is fixedly connected with the inner side of the outer protective sleeve (4).