CN210640029U

CN210640029U - Waterproof flame-retardant wire and cable

Info

Publication number: CN210640029U
Application number: CN201920338719.4U
Authority: CN
Inventors: 林锐鑫
Original assignee: Guangdong Chuangxing Cable Co ltd
Current assignee: Guangdong Chuangxing Cable Co ltd
Priority date: 2019-03-18
Filing date: 2019-03-18
Publication date: 2020-05-29
Anticipated expiration: 2029-03-18

Abstract

The utility model relates to a wire and cable technical field specifically belongs to a waterproof fire-retardant wire and cable, comprises tensile sandwich layer, conductive layer, functional layer and protective layer from inside to outside, the functional layer comprises waterproof layer, fire-retardant layer, parcel layer and polypropylene resin coating from inside to outside in proper order, the conductive layer is formed by many conductor bar evenly distributed, interval between the conductor bar is provided with the filler strip, the protective layer is formed by the winding of bar metal spiral, the interval has between protective layer and the functional layer, the protective layer can produce elastic deformation at the atress is tensile, recovers when not the atress, the waterproof layer comprises the petroleum jelly that blocks water, the parcel layer comprises silica gel, fire-retardant layer comprises ceramic compression powder, possesses outstanding waterproof fire-retardant effect.

Description

Waterproof flame-retardant wire and cable

Technical Field

The utility model belongs to the technical field of wire and cable, specifically belong to a waterproof fire-retardant wire and cable.

Background

With the rapid development of the communication industry in China, the demand of wires and cables as the artery and the blood vessel for signal transmission is increased day by day, because the wires and the cables are used for electrifying, the wires and the cables cannot be exposed outside, and in order to ensure the safety of personnel, the wires and the cables are wrapped by insulating materials. However, the prior art has the following disadvantages: 1. when the existing electric wire and cable are used in residential areas, the residential areas have limited space, so that the electric wire and cable are often hung in a region close to a fire source, once a fire disaster occurs around the electric wire and cable, an insulating layer on the surface of the electric wire and cable is easily baked, the electric wire and cable are ignited, electric leakage is caused, people and livestock are easily subjected to electric shock, great loss is caused, and meanwhile, once an insulating skin of the electric wire and cable is damaged, the electric wire and cable are easily subjected to short circuit due to water bubbles; 2. the setting has appeared suncured ageing easily for outdoor wire and cable time, leads to the poor problem of fire prevention waterproof flame retardant efficiency, though with low costs in the short time, has long time will leave hidden danger such as wire and cable fracture, electric leakage, fire.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art's defect, provide a waterproof fire-retardant wire and cable, possess and have outstanding waterproof flame retardant efficiency.

In order to realize the purpose, the utility model provides a technical scheme does: the utility model provides a pair of waterproof fire-retardant wire and cable comprises tensile sandwich layer, conductive layer, functional layer and protective layer from inside to outside, the functional layer comprises waterproof layer, fire-retardant layer, parcel layer and polypropylene resin coating from inside to outside in proper order, the conductive layer is formed by many conductor bar evenly distributed, interval between the conductor bar is provided with the filler strip, the protective layer is formed by bar metal spiral winding, the interval has between protective layer and the functional layer, the protective layer can produce elastic deformation at the atress is tensile, recovers when not the atress, the waterproof layer comprises the petroleum jelly that blocks water, the parcel layer comprises silica gel, fire-retardant layer comprises ceramic compression powder.

Preferably, the tensile core layer is composed of aramid ropes.

Preferably, the filler strip is composed of silicon carbide.

Preferably, the conductor strip is composed of a metal conductor and an insulating layer in sequence from inside to outside.

Preferably, the insulating layer is made of glass fiber yarns.

Preferably, the strip metal is a memory metal.

The utility model has the advantages that: (1) has excellent waterproof and flame-retardant effects. The functional layer comprises waterproof layer, fire-retardant layer, parcel layer and polypropylene resin coating from inside to outside in proper order, and the waterproof layer comprises the petroleum jelly that blocks water, the parcel layer comprises silica gel, fire-retardant layer comprises ceramic compressed powder, and the polypropylene resin coating possesses wear-resisting and flame retardant efficiency, can play preliminary fire-retardant and the effect of protection parcel layer, and the parcel layer can be fixed with ceramic compressed powder parcel internally, to the waterproof role that can get up outward, and the flame retardant layer that ceramic compressed powder formed can be absolute blocks the flame that probably forms among the daily life and burns the conductor layer, the possibility of electric leakage after the root catches fire. The tensile core layer and the protective layer can enable the wire and cable to have tensile resistance, and the protective layer enables other structures inside the protective layer not to be subjected to pulling action and friction action. (2) Be provided with tensile sandwich layer and can promote wire and cable intensity, avoid the fracture. (3) The filling strips are made of silicon carbide, so that the filling strips are light in weight, good in flexibility and insulating. (4) The flame-retardant layer is prepared from expanded graphite and can effectively prevent combustion. (5) The insulating layer is prepared from glass fiber yarns, and has insulating and flame-retardant effects.

Drawings

Fig. 1 is a schematic view of a waterproof flame-retardant electric wire and cable of the present invention;

fig. 2 is a partial schematic view of a functional layer of a waterproof flame-retardant electric wire of the present invention;

fig. 3 is a schematic view of a conductor strip of a waterproof flame-retardant electric wire of the present invention;

fig. 4 is a schematic view of the waterproof and flame-retardant electric wire and cable according to the present invention, wherein the protective layer is elastically deformed when being stretched;

fig. 5 is a schematic view of the waterproof and flame-retardant electric wire and cable of the present invention when the protective layer is restored to its original state;

description of reference numerals: 1. a tensile core layer; 2. a conductor layer; 21. a conductor bar; 211. a metal conductor; 212. an insulating layer; 22. filling the strip; 3. a functional layer; 31. a waterproof layer; 32. a flame retardant layer; 33. a wrapping layer; 34. a polypropylene resin coating; 4. a protective layer; 41. a strip of metal.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Example 1:

as shown in the figure: a waterproof flame-retardant wire and cable comprises a tensile core layer 1, a conductor layer 2, a functional layer 3 and a protective layer 4 from inside to outside, wherein the functional layer 3 sequentially comprises a waterproof layer 31, a flame-retardant layer 32, a wrapping layer 33 and a polypropylene resin coating 34 from inside to outside, the conductor layer 2 is formed by uniformly distributing a plurality of conductor bars 21, filling bars 22 are arranged at intervals among the conductor bars 21, the protective layer 4 is formed by spirally winding strip-shaped metal 41, an interval is arranged between the protective layer 4 and the functional layer 3, the protective layer 4 can elastically deform under stress and stretch and recover under no stress, the waterproof layer 31 comprises water-blocking petroleum jelly, the wrapping layer 33 comprises silica gel, and the flame-retardant layer 32 comprises ceramic compressed powder; the tensile core layer 1 is composed of aramid ropes; the filler strip 22 is composed of silicon carbide; the conductor strip 2 consists of a metal conductor 211 and an insulating layer 212 from inside to outside in sequence; the insulating layer 212 is made of glass fiber yarns; the bar-shaped metal 41 is a memory metal.

Finally, it should be noted that: it should be understood that the above examples are only for clearly illustrating the present invention and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims

1. The utility model provides a waterproof fire-retardant wire and cable, its characterized in that comprises tensile sandwich layer, conductor layer, functional layer and protective layer from inside to outside, the functional layer comprises waterproof layer, fire-retardant layer, parcel layer and polypropylene resin coating from inside to outside in proper order, the conductor layer is formed by many conductor bar evenly distributed, interval between the conductor bar is provided with the filler strip, the protective layer is formed by bar metal spiral winding, the interval has between protective layer and the functional layer, the protective layer can produce elastic deformation at the atress is tensile, recovers when not the atress, the waterproof layer comprises the petroleum jelly that blocks water, the parcel layer comprises silica gel, fire-retardant layer comprises ceramic compression powder.

2. The waterproof flame-retardant wire and cable according to claim 1, wherein the tensile core layer is composed of aramid ropes.

3. The waterproof flame-retardant electric wire and cable according to claim 1, wherein the filler strip is composed of silicon carbide.

4. The waterproof flame-retardant wire and cable according to claim 1, wherein the conductor strip comprises a metal conductor and an insulating layer in sequence from inside to outside.

5. The waterproof flame-retardant electric wire and cable according to claim 4, wherein the insulating layer is made of glass fiber filaments.

6. The waterproof flame-retardant electric wire and cable according to claim 1, wherein the strip metal is a memory metal.