CN212113268U - Fireproof and anti-creeping cable - Google Patents

Abstract

The utility model provides a fireproof and anticreep cable, which comprises a plurality of core wires, a cable jacket, an insulating layer, a fireproof layer, a high temperature resistant layer and an elastic layer; the insulating layer is divided into a first insulating layer and a second insulating layer, the first insulating layer wraps the core wires respectively and then is wrapped by the second insulating layer in a whole, a filling layer is arranged in a gap between the first insulating layer and the second insulating layer, the fireproof layer wraps the second insulating layer, the high-temperature-resistant layer wraps the fireproof layer, the elastic layer wraps the high-temperature-resistant layer, and the cable jacket wraps the elastic layer; the first insulating layer and the second insulating layer are both made of rubber materials, the high-temperature-resistant layer is made of alumina ceramic materials, and the fire-proof layer is made of fire-extinguishing gel materials. The utility model has the advantages that the double-layer insulating layer is arranged, so that the electric leakage protection is realized for the cable; the fireproof cable is provided with the high-temperature-resistant layer and the fireproof layer, so that the heat transfer and the fire spread are prevented, and the fireproof and flame-retardant performance of the cable is improved.

Description

Fireproof and anti-creeping cable

Technical Field

The utility model belongs to the technical field of the cable technique and specifically relates to indicate a fire prevention anticreep cable.

Background

One or more conductors insulated from each other and an outer insulating protective layer, and wires that transmit power or information from one place to another are called cables. The existing cable is only internally provided with one insulating layer to protect electric leakage, but the insulating layer is often aged along with the increase of service time, so that the cable has certain electric leakage risk and low safety; the fire hazard is one of the most important factors influencing the safe operation of the cable, the conventional cable cannot normally operate under the high-temperature condition, the fireproof structure design of the cable is not optimized, and the fireproof performance is not high.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

An object of the utility model is to provide a fire prevention anticreep cable has the function of fire prevention anticreep. In order to achieve the above purpose, the utility model adopts the following technical scheme:

(II) technical scheme

A fireproof and anticreep cable comprises a core wire, a cable jacket, an insulating layer, a high temperature resistant layer, a fireproof layer and an elastic layer;

the insulating layer is divided into a first insulating layer and a second insulating layer, the first insulating layer is wrapped by the second insulating layer after wrapping the core wires respectively, a filling layer is arranged in a gap between the first insulating layer and the second insulating layer, the fireproof layer wraps the second insulating layer, the high-temperature-resistant layer wraps the fireproof layer, the elastic layer wraps the high-temperature-resistant layer, and the cable jacket wraps the elastic layer;

the first insulating layer and the second insulating layer are both made of rubber materials, the high-temperature-resistant layer is made of alumina ceramic materials, and the fireproof layer is made of fire extinguishing gel materials.

Furthermore, a plurality of rubber blocks are arranged in the elastic layer and distributed in an annular shape.

Further, the rubber block and the cable jacket are integrally formed.

Further, the rubber blocks are distributed at intervals in the longitudinal direction.

Further, the cable jacket is made of low-smoke halogen-free polyolefin materials.

Further, the filling layer is made of glass fiber materials.

(III) advantageous effects

Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, through being equipped with double-deck anticreep insulating layer in the cable, play double-deck earth leakage protection effect to the cable, improve anticreep performance, even after the live time becomes long, first insulating layer is ageing, and the second insulating layer can not be ageing, still can play the effect of earth leakage protection, has strengthened the security performance of cable; through being equipped with high temperature resistant layer and flame retardant coating inside the cable conductor, take place when the fire disaster, high temperature resistant layer can be high temperature resistant and absorb the heat simultaneously in the intensity of a fire, prevent further stretching and the diffusion of the intensity of a fire, break through high temperature resistant layer when the intensity of a fire and stretch to the flame retardant coating, the flame retardant coating gel of putting out a fire receives high temperature, form the moderate colloid of viscosity and cover on the cable, play cooling isolated oxygen simultaneously, the gel of putting out a fire also has high temperature resistant characteristic itself, play and show the effect of preventing putting out a fire, mutually supporting of high temperature resistant layer and flame retardant coating, the fire behavior of cable is improved.

Drawings

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

Fig. 1 is a schematic cross-sectional view of the present invention;

fig. 2 is an external view of the cable jacket 8 of the present invention.

The reference numbers illustrate:

1. a wire core;	2. a first insulating layer;
		3. a filling layer;	4. a second insulating layer;
5. a fire barrier layer;	6. a high temperature resistant layer;
		7. an elastic layer;	71. a rubber block;
8. and (4) coating the cable.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Referring to fig. 1, a fireproof and anti-leakage cable comprises a plurality of core wires 1, a cable jacket 8, an insulating layer, a fireproof layer 5, a high temperature resistant layer 6 and an elastic layer 7;

the insulating layer is divided into a first insulating layer 2 and a second insulating layer 4, the first insulating layer 2 is wrapped by the second insulating layer 4 after wrapping the core wires 1 respectively, the anti-creeping protection of the cable is further enhanced through double insulating layers, the anti-creeping performance of the cable is improved, and meanwhile, the insulating layer is made of rubber materials and has good insulating performance;

the clearance is equipped with filling layer 3 between first insulating layer 2 and the second insulating layer 4, and the gap in the filling layer 3 effect is the filling cable improves cable conductor 1's stability, and the filler material adopts the glass fiber material to make, and the glass fiber material has high temperature resistant, fire-retardant, insulating nature, further improves the fire prevention leak protection electric property of cable conductor.

5 parcel second insulating layer 4 of flame retardant coating, 5 adoption fire-extinguishing gel materials of flame retardant coating make, and the gel of putting out a fire receives high temperature to form the moderate colloid of viscosity and covers on the cable, plays cooling and isolated oxygen effect simultaneously, and the gel of putting out a fire also has high temperature resistance's characteristic itself.

The high-temperature resistant layer 6 wraps the fireproof layer 5, the high-temperature resistant layer 6 is made of an alumina ceramic material, the alumina ceramic material has good performances of high temperature resistance and heat absorption, and the high-temperature resistant layer 6 is closely connected with the fireproof layer 5 to be matched with each other to achieve a good fireproof and fire extinguishing effect.

The elastic layer 7 wraps the high-temperature-resistant layer 6, the elastic layer 7 is provided with a plurality of rubber blocks 71, the rubber blocks 71 are annular subsections, and when the cable is extruded from the outside, the rubber blocks 71 in the elastic layer 7 are elastically deformed under stress, and absorb external extrusion force, so that core wires in the cable are prevented from being damaged, a protection effect is achieved, and the compression resistance of the cable is improved;

as shown in fig. 2, the rubber block 71 is integrally formed with the cable sheath 8, so that the processing is convenient and the rubber block 71 is firmer; and the rubber blocks 71 are distributed at intervals in the longitudinal direction, so that the gap between the cable jacket 8 and the high-temperature resistant layer 6 is increased, and the pressure resistance is improved.

The cable jacket 8 wraps the elastic layer 7, and the cable jacket 8 is made of low-smoke halogen-free polyolefin materials, so that the jacket has good fireproof flame retardance and corrosion resistance.

The working principle is as follows:

electric leakage prevention: first insulating layer 2 parcel heart yearn 1 prevents heart yearn 1 electric leakage, sets up second insulating layer 4 and realizes double-deck protection, improves the anticreep performance of cable, and under long-time use, even first insulating layer 2 is ageing, second insulating layer 4 also can play anticreep guard action.

Fire prevention: when the fire breaks out, the flame burns the cable, and high temperature resistant layer 6 absorbs the heat and can be high temperature resistant, plays the fire prevention fire-retardant effect to the cable, prevents further stretching and the diffusion of intensity of a fire, breaks through high temperature resistant layer 6 to flame retardant coating 5 when the intensity of a fire, and when flame retardant coating 5 received high temperature, the gel of putting out a fire in it formed the colloid that has certain viscosity and covered on the cable, plays the cooling and isolated oxygen effect simultaneously, reaches the effect of fire prevention and fire extinguishing.

The design key point of the utility model lies in that the double-layer protection effect of electric leakage is realized by utilizing the design of the double-layer insulating layer, and the purposes of improving the electric leakage prevention performance and the safety of the cable are achieved; the high temperature resistant layer and the fireproof layer are matched to realize the effects of fire prevention and fire extinguishing, and the aim of improving the fireproof performance of the cable is fulfilled.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims (6)

1. The utility model provides a fire prevention anticreep cable, includes a plurality of heart yearns (1) and cable cover (8), its characterized in that: the fireproof insulation board also comprises an insulation layer, a fireproof layer (5), a high temperature resistant layer (6) and an elastic layer (7);

the insulating layer is divided into a first insulating layer (2) and a second insulating layer (4), the first insulating layer (2) wraps the core wires (1) respectively and then is integrally wrapped by the second insulating layer (4), a filling layer (3) is arranged in a gap between the first insulating layer (2) and the second insulating layer (4), the fire-proof layer (5) wraps the second insulating layer (4), the high-temperature-resistant layer (6) wraps the fire-proof layer (5), the elastic layer (7) wraps the high-temperature-resistant layer (6), and the cable jacket (8) wraps the elastic layer (7);

the fire-proof insulation board is characterized in that the first insulation layer (2) and the second insulation layer (4) are both made of rubber materials, the high-temperature-resistant layer (6) is made of alumina ceramic materials, and the fire-proof layer (5) is made of fire-extinguishing gel materials.

2. The fire-proof and leakage-proof cable of claim 1, wherein: a plurality of rubber blocks (71) are arranged in the elastic layer (7), and the rubber blocks (71) are distributed annularly.

3. The fire-proof and leakage-proof cable of claim 2, wherein: the rubber block (71) and the cable jacket (8) are integrally formed.

4. A fire-proof and leakage-proof cable according to claim 3, wherein: the rubber blocks (71) are distributed at intervals in the longitudinal direction.

5. The fire-proof and leakage-proof cable of claim 1, wherein: the cable jacket (8) is made of low-smoke halogen-free polyolefin material.

6. The fire-proof and leakage-proof cable of claim 1, wherein: the filling layer (3) is made of glass fiber materials.

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