CN218100765U - Fireproof flame-retardant cable - Google Patents

Abstract

The utility model discloses a fire prevention flame retarded cable, including insulating inoxidizing coating and protection machanism, protection machanism sets up in insulating inoxidizing coating's inner chamber, and protection machanism includes metal collapsible tube and fire-retardant mechanism, metal collapsible tube's outside and insulating inoxidizing coating's inner wall fixed connection, and fire-retardant mechanism sets up in metal collapsible tube's inner chamber, and fire-retardant mechanism includes the mica tape, is provided with thermal-insulated foam layer between mica tape and the metal collapsible tube, is provided with the elasticity silica gel layer between metal collapsible tube and the insulating protective layer. The utility model discloses a metal collapsible tube's incombustible and the high temperature resistance on elasticity silica gel layer block the burning of flame, protect inside sinle silk and rubber insulation layer to utilize the thermal-insulated characteristic on thermal-insulated foam layer, reduce the conduction of outside heat to cable inside, and then reduce the temperature of sinle silk and rubber insulation layer department, prevent that rubber insulation layer from taking place to damage, play the fire-retardant effect of preventing fires.

Description

Fireproof flame-retardant cable

Technical Field

The utility model relates to a fire prevention flame retarded cable field, in particular to fire prevention flame retarded cable.

Background

According to statistics, the part caused by electrical faults in a fire accident accounts for about 60%, along with the fact that people continuously deepen understanding of fire danger caused by the problems of the electric wires and the electric cables, the performance requirements of fire prevention, flame retardance and the like of the electric wires and the electric cables are gradually improved, and fire fighting equipment such as fire elevators, fire pumps and the like need to keep normal operation within a certain time under the condition of fire occurrence, so that the electric wires and the electric cables which bear the power transmission function of the equipment need to have high fire prevention and heat resistance.

The existing flame-retardant fireproof cable is generally a single protective layer for insulation and fire prevention formed by mixing a flame retardant and the cable, and the cable is poor in fireproof and flame-retardant effects, and still cannot be burnt under the condition of fire, so that more serious fire occurs, and personal safety and great economic loss are caused.

Disclosure of Invention

An object of the utility model is to provide a fire prevention flame retarded cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a fireproof flame-retardant cable comprises an insulating protective layer and a protection mechanism, wherein the protection mechanism is arranged in an inner cavity of the insulating protective layer;

the protection mechanism comprises a metal hose and a flame-retardant mechanism, the outer part of the metal hose is fixedly connected with the inner wall of the insulating protection layer, and the flame-retardant mechanism is arranged in the inner cavity of the metal hose;

the flame-retardant mechanism comprises a mica tape, a heat-insulation foam layer is arranged between the mica tape and the metal hose, and an elastic silica gel layer is arranged between the metal hose and the insulation protective layer.

Preferably, a plurality of wire cores are arranged in the inner cavity of the mica tape, and rubber insulating layers are fixedly sleeved on the wire cores.

Preferably, the insulation protection layer comprises a wear-resistant layer, a glass fiber layer, a fireproof layer and a rubber layer, wherein the wear-resistant layer, the glass fiber layer, the fireproof layer and the rubber layer are sequentially stacked.

Preferably, the outside of glass fiber layer is provided with first bonding layer, first bonding layer is connected with the inner wall of wearing layer.

Preferably, the inner side of the glass fiber layer is provided with a second adhesive layer, and the second adhesive layer is connected with the outer wall of the fireproof layer.

Preferably, the outer wall of the rubber layer is connected with the inner wall of the fireproof layer, and the inner wall of the rubber layer is connected with the outer wall of the metal hose.

The utility model discloses a technological effect and advantage:

(1) The utility model discloses utilize metal collapsible tube, elastic silica gel layer and thermal-insulated foam layer matched with mode of setting, through metal collapsible tube's incombustible and elastic silica gel layer's high temperature resistance, block the burning of flame, protect sinle silk and rubber insulation layer inside, and utilize the thermal-insulated characteristic of thermal-insulated foam layer, reduce the conduction of outside heat to cable inside, and then reduce the temperature of sinle silk and rubber insulation layer department, prevent that rubber insulation layer from taking place the damage, play the fire-retardant effect of preventing fires;

(2) The utility model discloses utilize insulating inoxidizing coating and sinle silk matched with to set up the mode, constitute insulating inoxidizing coating through wearing layer, glass fiber layer, flame retardant coating and the rubber layer that stacks gradually the setting, install the sinle silk in the inside of insulating inoxidizing coating, constitute complete cable, carry out preliminary protection to the sinle silk.

Drawings

Fig. 1 is the overall structure diagram of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

Fig. 3 is a schematic view of the front sectional structure of the insulation protection layer of the present invention.

In the figure: 1. an insulating protective layer; 2. a protection mechanism; 21. a metal hose; 22. a flame retardant mechanism; 221. mica tapes; 222. a thermally insulating foam layer; 223. an elastic silica gel layer; 3. a wire core; 4. a rubber insulating layer; 5. a wear layer; 6. a glass fiber layer; 7. a fire barrier layer; 8. a rubber layer; 9. a first adhesive layer; 10. a second adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a fire-proof flame-retardant cable as shown in figures 1-3, which comprises an insulating protective layer 1 and a protective mechanism 2, wherein the protective mechanism 2 is arranged in the inner cavity of the insulating protective layer 1, the insulating protective layer 1 is the outermost side protection of the cable, a wire core 3 is arranged in the inner cavity of the insulating protective layer 1, the protective mechanism 2 is arranged outside the wire core 3, and the wire core 3 is subjected to flame-retardant and fire-proof protection, so that the cable cannot be damaged in a short time by fire;

the protection mechanism 2 comprises a metal hose 21 and a flame-retardant mechanism 22, the outer part of the metal hose 21 is fixedly connected with the inner wall of the insulating protection layer 1, a plurality of bulges are arranged on the outer part of the metal hose 21 at equal intervals and used for increasing the gap between the metal hose 21 and a mica tape 221 and improving the capacity of a heat-insulating foam layer 222 so as to enhance the heat-insulating effect, the metal hose 21 is made of a metal material, has the characteristic of high temperature resistance, blocks the combustion of flame and protects a wire core 3 and a rubber insulating layer 4 in the metal hose, the flame-retardant mechanism 22 is arranged in the inner cavity of the metal hose 21, and the flame-retardant mechanism 22 is used for protecting the wire core 3 and the rubber insulating layer 4 in the inner cavity of the metal hose;

the flame-retardant mechanism 22 comprises a mica tape 221, the mica tape 221 is wound on the outer walls of the plurality of rubber insulating layers 4, and plays a role in flame retardance and fire prevention by utilizing the flame-retardant property of the mica tape 221, a heat-insulating foam layer 222 is arranged between the mica tape 221 and the metal hose 21 and plays a role in heat insulation, so that the conduction of external heat is reduced, the temperature of the wire core 3 and the rubber insulating layers 4 is reduced, the rubber insulating layers 4 are prevented from being damaged due to high temperature, an elastic silica gel layer 223 is arranged between the metal hose 21 and the insulating protective layer 1 and filled between the metal hose 21 and the insulating protective layer 1, the elastic silica gel layer 223 is a high-temperature-resistant material and is used for blocking the burning of flame, so that the influence on the wire core 3 and the rubber insulating layers 4 is reduced, when a fire occurs, the flame burns to the positions of the metal hose 21 and the elastic silica gel layer 223, the burning of the flame is blocked through the incombustible of the metal hose 21 and the high-temperature resistance of the elastic silica gel layer 223, the burning of the flame is blocked, the wire core 3 and the rubber insulating layers 4 are protected, and the damage of the rubber insulating layers 4 is prevented by utilizing the heat-insulating foam layer 222;

a plurality of wire cores 3 are arranged in an inner cavity of the mica tape 221, the wire cores 3 are made of metal conductive materials and used for electrical connection between electrical equipment, a rubber insulating layer 4 is fixedly sleeved on the wire cores 3, and the wire cores 3 are arranged in the inner cavity of the rubber insulating layer 4 and used for insulating and protecting the plurality of wire cores 3;

the insulation protection layer 1 comprises a wear-resistant layer 5, a glass fiber layer 6, a fireproof layer 7 and a rubber layer 8, the wear-resistant layer 5, the glass fiber layer 6, the fireproof layer 7 and the rubber layer 8 are sequentially stacked, the insulation protection layer 1 is sequentially composed of the wear-resistant layer 5, the glass fiber layer 6, the fireproof layer 7 and the rubber layer 8 and used for protecting an inner wire core 3, the wear-resistant layer 5 is used for reducing abrasion of external friction on a cable, and the glass fiber layer 6 is arranged in a net shape and used for enhancing physical ductility of the cable;

the outside on glass fiber layer 6 is provided with first bonding layer 9, first bonding layer 9 is connected with the inner wall of wearing layer 5, the inboard on glass fiber layer 6 is provided with second bonding layer 10, second bonding layer 10 is connected with the outer wall of flame retardant coating 7, first bonding layer 9 and second bonding layer 10 are the water-soluble acrylic acid of environmental protection and glue, wearing layer 5 and flame retardant coating 7 are respectively through first bonding layer 9 and second bonding layer 10 and glass fiber layer 6's both sides, connect through the pressfitting mode, the outer wall on rubber layer 8 is connected with the inner wall of flame retardant coating 7, the inner wall on rubber layer 8 is connected with metal collapsible tube 21's outer wall, utilize the elastic action on rubber layer 8, reduce the influence of external effort to the cable.

The utility model discloses the theory of operation: when the conflagration breaing out, flame burning arrives metal collapsible tube 21 and elasticity silica gel layer 223 position, incombustible through metal collapsible tube 21 and the high temperature resistance of elasticity silica gel layer 223, block the burning of flame, protect sinle silk 3 and the rubber insulation layer 4 of inside, and utilize the thermal-insulated characteristic of thermal-insulated foam layer 222, reduce the conduction of outside heat to the cable is inside, and then reduce the temperature of sinle silk 3 and 4 departments of rubber insulation layer, prevent that rubber insulation layer 4 from taking place the damage, simultaneously through the wearing layer 5 that stacks gradually the setting, glass fiber layer 6, insulating inoxidizing coating 1 is constituteed to flame retardant coating 7 and rubber layer 8, install the inside at insulating inoxidizing coating 1 with sinle silk 3, constitute complete cable, carry out preliminary protection to sinle silk 3.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims (6)

1. A fireproof flame-retardant cable comprises an insulating protective layer (1) and a protective mechanism (2), and is characterized in that the protective mechanism (2) is arranged in an inner cavity of the insulating protective layer (1);

the protection mechanism (2) comprises a metal hose (21) and a flame-retardant mechanism (22), the outer part of the metal hose (21) is fixedly connected with the inner wall of the insulating protection layer (1), and the flame-retardant mechanism (22) is arranged in the inner cavity of the metal hose (21);

the flame-retardant mechanism (22) comprises a mica tape (221), a heat-insulating foam layer (222) is arranged between the mica tape (221) and the metal hose (21), and an elastic silica gel layer (223) is arranged between the metal hose (21) and the insulating protective layer (1).

2. A fireproof flame-retardant cable according to claim 1, wherein a plurality of wire cores (3) are arranged in the inner cavity of the mica tape (221), and the wire cores (3) are fixedly sleeved with rubber insulation layers (4).

3. A fireproof and flame-retardant cable according to claim 1, wherein the insulation protection layer (1) comprises a wear-resistant layer (5), a glass fiber layer (6), a fireproof layer (7) and a rubber layer (8), and the wear-resistant layer (5), the glass fiber layer (6), the fireproof layer (7) and the rubber layer (8) are sequentially stacked.

4. A fire retardant cable according to claim 3, characterised in that the outer side of said glass fibre layer (6) is provided with a first adhesive layer (9), said first adhesive layer (9) being connected to the inner wall of the wear layer (5).

5. A fire-resistant and flame-retardant cable as claimed in claim 3, characterized in that the inner side of said fiberglass layer (6) is provided with a second adhesive layer (10), said second adhesive layer (10) being connected with the outer wall of the fire-resistant layer (7).

6. A fire-resistant and fire-retardant cable according to claim 3, wherein the outer wall of said rubber layer (8) is connected to the inner wall of said fire-retardant layer (7), and the inner wall of said rubber layer (8) is connected to the outer wall of said metal hose (21).

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