CN210743643U

CN210743643U - High-performance fire-resistant cable

Info

Publication number: CN210743643U
Application number: CN201921541428.1U
Authority: CN
Inventors: 戴琪; 杨军华; 杨杰
Original assignee: Jiangsu Xinfeng Cable Co ltd
Current assignee: Jiangsu Xinfeng Cable Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-12
Anticipated expiration: 2029-09-17

Abstract

The utility model discloses a high performance fire resisting cable, including waterproof layer and packing layer, be equipped with a spacing body in the packing layer, just spacing body is cylindric, and extends along the length direction straight line of this cable, be equipped with four parting bead that angular distribution such as, and four on the spacing body the one end of parting bead with the inboard of packing layer is connected, per two constitute a cavity between the parting bead, and be equipped with an insulating sheath in every cavity, be equipped with the copper core in the insulating sheath, the outer fixedly connected with of packing layer pulls the body that angular distribution such as 5. The utility model discloses adopt the traction body fixed connection between packing layer and the anti-breaking sleeve to the traction body is the thermal contraction material, when meetting naked light and making the temperature rise, the traction body will contract, makes the anti-breaking sleeve tighten up in the outside of packing layer, carries out better guard action to the packing layer, thereby improves the life of cable.

Description

High-performance fire-resistant cable

Technical Field

The utility model relates to a cable field, in particular to high performance fire resisting cable.

Background

Along with the frequent occurrence of fire accidents, people continuously deepen the understanding of the fire hazard risk of the electric wire and the electric cable, and the requirements of relevant departments on the performances of fire prevention, flame retardance and the like of the electric wire and the electric cable are higher and higher. The cable fire disaster has the characteristics of fast spread, difficult fire fighting, secondary hazard generation, long recovery time and the like, and can bring huge loss to national economy and the lives and properties of people. Therefore, more severe operating conditions are provided for the flame retardant property, the fireproof property and the safety and reliability of the wires and cables. If the fire-fighting elevator and the fire pump are in fire prevention, explosion prevention, strong overload capacity and long service life, the fire-fighting elevator and the fire pump need to be kept in normal operation for a certain time under the condition of fire, and the cable has special requirements of low smoke, low halogen and low toxicity after combustion, even no smoke, no halogen, no toxicity and the like. The fire-retardant and fire-proof measures of the cable are important means for reducing the fire delay of the cable, and the key point is that the fire-retardant and fire-proof measures are mainly used for preventing fire, and various fire-retardant cables, fire-resistant cables and fire-proof cables are widely applied.

However, the conventional cable has certain disadvantages in the use process, such as insufficient fire resistance of the cable, poor waterproof effect in a humid environment, and poor practicability.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a high-performance fire-resistant cable, which can effectively solve the problems of the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a high-performance fire-resistant cable comprises a waterproof layer and a packing layer, wherein a limiting body is arranged in the packing layer, the limiting body is cylindrical and extends linearly along the length direction of the cable, four separation strips distributed at equal angles are arranged on the limiting body, one ends of the four separation strips are connected with the inner side of the packing layer, a cavity is formed between every two separation strips, an insulating sheath is arranged in each cavity, a copper core is arranged in each insulating sheath, 5 traction bodies distributed at equal angles are fixedly connected to the outer layer of the packing layer, the traction bodies extend linearly along the length direction of the cable, one end of each traction body is fixedly connected with one side of an anti-breaking sleeve, a cavity is also formed between the packing layer and the anti-breaking sleeve, the outer layer of the anti-breaking sleeve is wrapped with the waterproof layer, and the outer layer of the waterproof layer is wrapped with a fire-resistant layer, the outer layer of the cable is wrapped on the outer side of the fire-resistant layer.

Further, the waterproof layer is made of polyethylene materials.

Furthermore, the outer layer of the insulating sheath is wrapped with a filler cloth belt made of fiber twisted resin.

Furthermore, a plurality of steel wires are arranged inside the anti-breaking sleeve, and the steel wires are uniformly distributed inside the anti-breaking sleeve.

Further, the outer layer of the cable is made of ceramic fiber materials, and the outer layer of the cable is sprayed with anticorrosive paint.

Further, the flame retardant coating is fire-resistant graphite alkene material, the traction body is the thermal contraction material.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model is provided with a limiting body in the packing layer, four separating strips are fixedly connected on the limiting body, and an insulating sheath is arranged in a cavity formed by the separating strips to separate the insulating sheath, so that the insulating sheaths are not interfered with each other, and the practicability is good;

2. the utility model is provided with the anti-breaking sleeve, the steel wires which are distributed at equal intervals are arranged in the anti-breaking sleeve, and the steel wires have good toughness, thus increasing the anti-breaking performance of the cable and improving the functionality of the cable;

3. the utility model discloses adopt the ceramic fibre material with the cable skin, ceramic fibre indicates a fibrous light refractory material, has light in weight, high temperature resistant, thermal stability is good, the heat conductivity is low, the effect that specific heat is little to still the spraying has anticorrosive coating on the cable skin, increases the corrosion-resistant effect to the cable.

4. The utility model discloses adopt the traction body fixed connection between packing layer and the anti-breaking sleeve to the traction body is the thermal contraction material, when meetting naked light and making the temperature rise, the traction body will contract, makes the anti-breaking sleeve tighten up in the outside of packing layer, carries out better guard action to the packing layer, thereby improves the life of cable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic view of the local structure of the anti-breaking sleeve of the present invention.

In the figure: 1. an outer layer of the cable; 2. a refractory layer; 3. a waterproof layer; 4. a breakage-proof sleeve; 401. a steel wire; 5. a filler layer; 6. an insulating sheath; 7. a copper core; 8. a traction body; 9. a limiting body; 10. a dividing strip.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-3, a high-performance fire-resistant cable includes a waterproof layer 3 and a packing layer 5, wherein a stopper 9 is disposed in the packing layer 5, the stopper 9 is cylindrical and extends linearly along a length direction of the cable, four separation strips 10 are disposed on the stopper 9 and distributed at equal angles, one end of each of the four separation strips 10 is connected to an inner side of the packing layer 5, a cavity is formed between every two separation strips 10, an insulating sheath 6 is disposed in each cavity, a copper core 7 is disposed in the insulating

sheath

6, 5 tractors 8 distributed at equal angles are fixedly connected to an outer layer of the packing layer 5, the tractors 8 extend linearly along the length direction of the cable, one end of each tractor 8 is fixedly connected to one side of a breakage-preventing sleeve 4, and a cavity is also formed between the packing layer 5 and the breakage-preventing sleeve 4, the outer layer of the anti-breaking sleeve 4 is wrapped with a waterproof layer 3, the outer layer of the waterproof layer 3 is wrapped with a fire-resistant layer 2, and the outer side of the fire-resistant layer 2 is wrapped with a cable outer layer 1.

Specifically, as shown in fig. 1, the waterproof layer 3 is made of polyethylene.

By adopting the scheme, the waterproof layer 3 is made of polyethylene material and has a good waterproof effect.

Specifically, as shown in fig. 1, the outer layer of the insulating sheath 6 is wrapped with a filler cloth tape, and the filler cloth tape is made of twisted fiber resin.

Through adopting above-mentioned scheme, insulating sheath 6's outer parcel has the filler strap, and the filler strap material is the resin of fibre twist, and the filler strap is the resin of fibre twist moreover, has fine heat resistance.

Specifically, as shown in fig. 3, a plurality of steel wires 401 are disposed inside the breakage preventing sleeve 4, and the plurality of steel wires 401 are uniformly distributed inside the breakage preventing sleeve 4.

Through adopting above-mentioned scheme, the inside of preventing disconnected cover 4 is equipped with many steel wires 401, and many steel wires 401 evenly distributed are in the inside of preventing disconnected cover 4, have fine disconnected effect of preventing.

Specifically, as shown in fig. 1, the cable outer layer 1 is made of ceramic fiber, and the cable outer layer 1 is sprayed with an anticorrosive paint.

By adopting the scheme, the outer layer 1 of the cable is made of the ceramic fiber material, and the outer layer 1 of the cable is sprayed with the anticorrosive paint, so that the cable has good fire resistance and corrosion resistance.

Specifically, as shown in fig. 1, the refractory layer 2 is made of a refractory graphene material, and the traction body 8 is made of a heat-shrinkable material.

Through adopting above-mentioned scheme, flame retardant coating 2 is fire-resistant graphite alkene material, and fire-resistant graphite alkene has fine fire-resistant effect.

What need explain, the utility model relates to a high performance fire resisting cable, in the use, cable skin 1 adopts the ceramic fibre material, ceramic fibre indicates fibrous light refractory material, light in weight has, high temperature resistance, the thermostability is good, the heat conductivity is low, the effect that the specific heat is little, and it has anticorrosive paint still to spray on cable skin 1, increase the corrosion-resistant effect to the cable, adopt traction body 8 fixed connection between packing layer 5 and prevent disconnected cover 4, and traction body 8 is the thermal contraction material, when meetting naked light and making the temperature rise, traction body 8 will contract, make prevent disconnected cover 4 tighten up in the outside of packing layer, carry out better guard action to packing layer 5, thereby improve the life of cable.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A high performance fire resistant cable, includes waterproof layer (3) and packing layer (5), its characterized in that: the cable is characterized in that a limiting body (9) is arranged in the packing layer (5), the limiting body (9) is cylindrical and extends linearly along the length direction of the cable, four separating strips (10) distributed at equal angles are arranged on the limiting body (9), one ends of the four separating strips (10) are connected with the inner side of the packing layer (5), a cavity is formed between every two separating strips (10), an insulating sheath (6) is arranged in each cavity, a copper core (7) is arranged in each insulating sheath (6), 5 traction bodies (8) distributed at equal angles are fixedly connected to the outer layer of the packing layer (5), the traction bodies (8) extend linearly along the length direction of the cable, one end of each traction body (8) is fixedly connected with one side of the anti-breaking sleeve (4), and a cavity is formed between the packing layer (5) and the anti-breaking sleeve (4), the outer layer of the anti-breaking sleeve (4) is wrapped with a waterproof layer (3), the outer layer of the waterproof layer (3) is wrapped with a fire-resistant layer (2), and the outer side of the fire-resistant layer (2) is wrapped with an outer cable layer (1).

2. A high performance fire resistant cable according to claim 1, wherein: the waterproof layer (3) is made of polyethylene material.

3. A high performance fire resistant cable according to claim 1, wherein: the outer layer of the insulating sheath (6) is wrapped with a filler cloth belt made of fiber twisted resin.

4. The high performance fire resistant cable of claim 1, wherein: prevent disconnected cover (4) inside and be equipped with many steel wires (401), and many steel wires (401) evenly distributed are in preventing the inside of disconnected cover (4).

5. A high performance fire resistant cable according to claim 1, wherein: the cable outer layer (1) is made of ceramic fiber materials, and the cable outer layer (1) is sprayed with anticorrosive paint.

6. A high performance fire resistant cable according to claim 1, wherein: the fireproof layer (2) is made of fireproof graphene, and the traction body (8) is made of a thermal contraction material.