CN213183678U

CN213183678U - Flame-retardant cable with high-strength structure

Info

Publication number: CN213183678U
Application number: CN202022104147.9U
Authority: CN
Inventors: 张涛; 张作兵; 段斌
Original assignee: Changsha Hanhe Cable Co ltd
Current assignee: Changsha Hanhe Cable Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-05-11
Anticipated expiration: 2030-09-23

Abstract

The utility model discloses a flame retarded cable of high strength structure, including the sheath, the inboard surface fixed mounting of sheath has the water blocking layer, the inside of sheath is provided with and all is equipped with the second rubber layer, surface fixed mounting has the fire-retardant layer of asbestos in the rubber packing, surface fixed mounting has the polyethylene insulating layer in the fire-retardant layer of asbestos, surface fixed mounting has compound material fire-proof material in the polyethylene insulating layer, relates to power cable technical field. This flame retarded cable of high strength structure is equipped with first steel wire through the intermediate position department in the cable body inside to evenly arranged the locating piece in the outside of first steel wire, not only can increase the intensity of cable main part, can fix first rubber layer moreover, the asbestos flame retardant coating outside is arranged simultaneously and is made the cable body have better fire behaviour with rubber packing, has increased the tensile strength of cable body.

Description

Flame-retardant cable with high-strength structure

Technical Field

The utility model relates to a power cable technical field specifically is a flame retarded cable of high strength structure.

Background

The cable is a similar rope formed by twisting a plurality of or a plurality of groups of conducting wires, each group of conducting wires are mutually insulated and are twisted around a center, the whole outer surface is wrapped with a highly-insulated covering layer, the cable has the characteristics of internal electrification and external insulation, along with frequent occurrence of fire accidents, people continuously deepen understanding of fire risks of the wire and the cable, and related departments have higher and higher requirements on the performances of fire prevention, flame retardance and the like of the wire and the cable. 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, people provide more rigorous operating conditions for flame retardance, fire resistance and safety and reliability of the electric wire and cable, and the existing flame-retardant cable with the high-strength structure has the following defects:

1. the flame retardant cable for the high-strength structure has poor flame retardance in the using process, the deformation resistance of the cable is poor, the temperature inside the cable is not convenient to disperse, the wear resistance is poor, and the notch position of the cable is easy to scatter, so that the using effect of the cable is influenced.

2. The existing flame-retardant cable for the high-strength structure only has the function of power transmission, the rapid transmission of data and information cannot be realized, meanwhile, the fireproof performance of the cable is low, and the safety is difficult to guarantee.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a flame retarded cable of high strength construction has solved current flame retarded cable of high strength construction and has only simply had power transmission's function, can't realize the rapid transit of data, information, and the in-process fire resistance that uses is relatively poor, and the inside temperature of cable is not convenient for distribute, and the wearability is relatively poor, and the incision position department of cable scatters easily, influences the result of use of cable.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the waterproof cable sheath comprises a cable sheath, a waterproof layer is fixedly mounted on the inner side surface of the cable sheath, a second rubber layer is arranged inside the cable sheath, a rubber filler is fixedly connected to the inner surface of the waterproof layer, and an asbestos flame-retardant layer is fixedly mounted on the inner surface of the rubber filler.

Preferably, a polyethylene insulating layer is fixedly arranged on the inner surface of the asbestos flame-retardant layer, and a composite fire-proof material is fixedly arranged on the inner surface of the polyethylene insulating layer.

Preferably, the composite fire-barrier material is fixedly connected with a first steel wire at the middle position, and a positioning block is fixedly connected with the outer side position of the first steel wire.

Preferably, the surface of the positioning block is filled with a first rubber layer, and a signal cable is fixedly connected to the outer position of the first rubber layer.

Preferably, the central position of the composite fire-proof material is fixedly provided with a copper conductor, and the left side position of the upper surface of the copper conductor is fixedly provided with a polyester isolation layer.

Preferably, the inside position fixedly connected with second steel wire of rubber filler, the inboard position fixedly connected with asbestos fire-retardant layer of second steel wire, fixedly connected with aluminium foil shielding layer in the middle of asbestos fire-retardant layer and the polyethylene insulating layer.

(III) advantageous effects

The utility model provides a flame retarded cable of high strength structure. The method has the following beneficial effects:

(1) this high strength construction's flame retarded cable is equipped with first steel wire through the intermediate position department in the cable body inside to evenly arranged the locating piece in the outside of first steel wire, not only can increase the intensity of cable main part, can fix first rubber layer moreover, avoid cable main part's inside to produce deformation.

(2) This high strength construction's flame retarded cable's compound material separates first steel wire of fire material intermediate position fixedly connected with, the outside fixedly connected with locating piece of position of first steel wire, and asbestos flame retardant coating outside is arranged second steel wire and rubber filler and is made the cable body have better fire behaviour, has increased the tensile strength of cable body.

Drawings

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

fig. 2 is a schematic structural diagram of the signal cable of the present invention;

FIG. 3 is a schematic structural view of the flame retardant layer of the present invention;

fig. 4 is a schematic structural view of the water-blocking layer of the present invention.

In the figure, 1-a first steel wire, 2-a positioning block, 3-a copper conductor, 4-a composite fire-insulating material, 5-a polyester isolating layer, 6-a polyethylene insulating layer, 7-a signal cable, 8-an aluminum foil shielding layer, 9-an asbestos flame-retardant layer, 10-a second steel wire, 11-a rubber filler, 12-a water-resistant layer, 13-a second rubber layer, 14-a cable sheath and 15-a first rubber 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.

Referring to fig. 1-4, an embodiment of the present invention provides a technical solution: the waterproof cable sheath comprises a cable sheath 14, a waterproof layer 12 is fixedly installed on the inner side surface of the cable sheath 14, second rubber layers 13 are arranged inside the cable sheath 14, rubber fillers 11 are fixedly connected to the inner surface of the waterproof layer 12, and asbestos flame-retardant layers 9 are fixedly installed on the inner surfaces of the rubber fillers 11.

The inner surface of the asbestos flame-retardant layer 9 is fixedly provided with a polyethylene insulating layer 6, the inner surface of the polyethylene insulating layer 6 is fixedly provided with a composite fire-insulating material 4, and the composite fire-insulating material is used, so that the heat-insulating capacity of the cable is improved, and flame retardance is realized fundamentally.

4 intermediate position fixedly connected with first steel wire 1 of combined material fire barrier material, the outside position fixedly connected with locating piece 2 of first steel wire 1 has evenly arranged locating piece 2 through the outside that is equipped with first steel wire 1, not only strengthens the intensity of cable main part, fixes first rubber layer 15 moreover, avoids the inside of cable main part to produce deformation.

The surface of the positioning block 2 is filled with a first rubber layer 15, the signal cable 7 is fixedly connected to the outer position of the first rubber layer 15, the functions of signal transmission and power transmission are achieved, the practicability is high, and a large amount of manufacturing and laying cost is saved.

The composite fire-barrier material 4 is fixedly provided with a copper conductor 3 at the center, and a polyester isolation layer 5 is fixedly arranged at the left side of the upper surface of the copper conductor 3, so that the composite fire-barrier material has good flame retardant property, and effectively prevents the cable from burning on fire.

The inside fixedly connected with second steel wire 10 of rubber filler 11, the inboard fixedly connected with asbestos fire-retardant layer 9 of second steel wire 10, fixedly connected with aluminium foil shielding layer 8 in the middle of asbestos fire-retardant layer 9 and the 6 polyethylene insulation layers is equipped with aluminium foil shielding layer 8 in the inside of cable main part, and second steel wire and rubber filler messenger cable body have better fire behaviour are arranged to the asbestos fire-retardant layer outside, have increased the tensile strength of cable body, can be convenient for avoid the interference of external environment to the cable.

The working principle is as follows: when the flame-retardant cable is used, the strength and the waterproof performance of the flame-retardant cable are improved through the second rubber layer 13 and the waterproof layer 12 in the cable sheath 14, the cable is prevented from being corroded inside by water, the second steel wire 10 and the rubber filler 11 outside the asbestos flame-retardant layer 9 enable the cable body to have better flame-retardant performance, the tensile performance of the cable body is improved, the aluminum foil shielding layer 8 is arranged inside the cable body, interference of external environment on the cable can be avoided conveniently, the first steel wire 1, the positioning block 2 and the first rubber layer 15 in the middle of the composite material fire-barrier material 4 not only enhance the strength of the cable body, but also fix the first rubber layer 15, deformation of the inside of the cable body is avoided, the signal cable 7 and the copper conductor 3 in the cable body have the functions of signal transmission and power transmission, the practicability is strong, and a large amount of manufacturing and laying cost is saved, the composite fire-barrier material 4 and the polyester isolation layer 5 have good flame retardant property, and effectively prevent the cable from burning on fire.

The utility model discloses a 1-first steel wire, 2-locating piece, 3-copper conductor, 4-compound material fire barrier, 5-polyester isolation layer, 6-polyethylene insulating layer, 7-signal cable, 8-aluminium foil shielding layer, 9-asbestos fire-retardant layer, 10-second steel wire, 11-rubber filler, 12-water blocking layer, 13-second rubber layer, 14-cable crust, 15-first rubber layer, the part is the general standard component or the part that technical staff in the field knows, its structure and principle all are that this technical staff can learn through the technical manual or obtain through conventional experimental method, the problem that the utility model solves, when carrying out the installation work of fire-retardant cable, through being equipped with first steel wire in the middle position of the internal portion of cable, and evenly arranged the locating piece in the outside of first steel wire, not only can increase the intensity of cable main part, can fix first rubber layer moreover, avoid the inside of cable main part to produce deformation, the asbestos fire-retardant layer outside is arranged simultaneously and is made the cable body have better fire behaviour with the rubber filler, has increased the tensile strength of cable body.

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 evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a flame retarded cable of high strength structure which characterized in that: the waterproof cable is characterized by comprising a cable sheath (14), a waterproof layer (12) is fixedly installed on the inner side surface of the cable sheath (14), a second rubber layer (13) is arranged inside the cable sheath (14), a rubber filler (11) is fixedly connected to the inner surface of the waterproof layer (12), and an asbestos flame-retardant layer (9) is fixedly installed on the inner surface of the rubber filler (11).

2. The flame-retardant cable of a high-strength structure according to claim 1, wherein: the fireproof asbestos plate is characterized in that a polyethylene insulating layer (6) is fixedly arranged on the inner surface of the asbestos flame-retardant layer (9), and a composite substance fireproof material (4) is fixedly arranged on the inner surface of the polyethylene insulating layer (6).

3. The flame-retardant cable of a high-strength structure according to claim 2, wherein: the composite fire-proof material is characterized in that a first steel wire (1) is fixedly connected to the middle of the composite fire-proof material (4), and a positioning block (2) is fixedly connected to the outer side of the first steel wire (1).

4. A high strength structural flame retardant cable according to claim 3, wherein: the surface of the positioning block (2) is filled with a first rubber layer (15), and a signal cable (7) is fixedly connected to the outer position of the first rubber layer (15).

5. A high strength structural flame retardant cable according to claim 3, wherein: the composite material fire-proof material is characterized in that a copper conductor (3) is fixedly arranged at the center of the composite material fire-proof material (4), and a polyester isolation layer (5) is fixedly arranged at the left side of the upper surface of the copper conductor (3).

6. The flame-retardant cable of a high-strength structure according to claim 1, wherein: the rubber packing is characterized in that a second steel wire (10) is fixedly connected to the inner position of the rubber packing (11), an asbestos flame-retardant layer (9) is fixedly connected to the inner side of the second steel wire (10), and an aluminum foil shielding layer (8) is fixedly connected between the asbestos flame-retardant layer (9) and the polyethylene insulating layer (6).