CN216212509U

CN216212509U - Light flame-retardant mineral insulated cable

Info

Publication number: CN216212509U
Application number: CN202123027369.6U
Authority: CN
Inventors: 叶水仙; 叶仕辉
Original assignee: Fujian Wandong Cable Co ltd
Current assignee: Fujian Wandong Cable Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-04-05
Anticipated expiration: 2031-12-03

Abstract

The utility model relates to the technical field of cables, in particular to a light flame-retardant mineral insulated cable which comprises a cable sheath and cable wires, the cable sheath is sequentially provided with an anticorrosive layer, a first flame-retardant layer, a reinforcing layer, an insulating layer and a second flame-retardant layer from outside to inside, the first flame-retardant layer and the second flame-retardant layer are arranged, so that the cable sheath has the effects of external flame retardance and internal flame retardance, the safety coefficient of the structure in use is improved, a plurality of first cavities are arranged inside the first flame-retardant layer, a plurality of convex blocks are arranged on the lower surface of the reinforcing layer, a second cavity is formed between the convex blocks, a plurality of third cavities are arranged inside the second flame-retardant layer, through first cavity, second cavity and the third cavity that is equipped with, can reduce the work material of this structure under the condition that does not influence this structure normal use to make this structure lighter when using.

Description

Light flame-retardant mineral insulated cable

Technical Field

The utility model relates to the technical field of cables, in particular to a light flame-retardant mineral insulated cable.

Background

As is known, a cable is a device for transmitting electric energy or signals, and is generally composed of several wires or groups of wires.

When the existing cable is used, the sheath of the existing cable is too thick and heavy, time and labor are wasted during installation, the practicability is low, the flame-retardant insulation coefficient of the existing cable is poor, and the safety factor is low.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a light flame-retardant mineral insulated cable.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fire-retardant mineral insulated cable of light, includes cable sheath and cable silk, cable sheath parcel cable silk, cable sheath is equipped with anticorrosive coating, first fire-retardant layer, enhancement layer, insulating layer and the fire-retardant layer of second from outside to inside in proper order, loop through fire-retardant adhesive bond between anticorrosive coating, first fire-retardant layer, enhancement layer, insulating layer and the fire-retardant layer of second, the inside on first fire-retardant layer is equipped with a plurality of first cavities, the lower surface of enhancement layer is equipped with a plurality of lugs, form the second cavity between the lug, the inside on the fire-retardant layer of second is equipped with a plurality of third cavities, and be equipped with a plurality of non slipping spur on the inner wall on the fire-retardant layer of second.

In order to improve the practicability of the structure, the structure is improved in that a clamping groove is formed in the outer wall of the second flame-retardant layer, a clamping block is arranged on the inner wall of the insulating layer, and the clamping block and the clamping groove are matched with each other.

In order to prolong the service life of the structure, the utility model improves that a plurality of anti-abrasion blocks are arranged on the outer wall of the anti-corrosion layer.

In order to improve the strength of the structure, the utility model improves that a plurality of reinforcing wires are arranged inside the first flame-retardant layer and penetrate through the first cavity.

In order to improve the use effect of the structure, the utility model has the improvement that the first flame-retardant layer and the first flame-retardant layer are both made of polyvinyl chloride, and the insulating layer is made of PVC polyethylene.

(III) advantageous effects

Compared with the prior art, the utility model provides a light flame-retardant mineral insulated cable which has the following beneficial effects:

according to the light flame-retardant mineral insulated cable, the cable sheath is sequentially provided with the anticorrosive layer, the first flame-retardant layer, the reinforcing layer, the insulating layer and the second flame-retardant layer from outside to inside, and the cable sheath can have the effects of external flame retardance and internal flame retardance through the first flame-retardant layer and the second flame-retardant layer, so that the safety coefficient of the structure in use is improved;

the inside on first fire-retardant layer is equipped with a plurality of first cavities, the lower surface of enhancement layer is equipped with a plurality of lugs, form the second cavity between the lug, the inside on the fire-retardant layer of second is equipped with a plurality of third cavities, through first cavity, second cavity and the third cavity that is equipped with, can reduce the work material of doing of this structure under the condition that does not influence this structure normal use to it is lighter when using to make this structure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

in the figure: 1. an anticorrosive layer; 2. a first flame retardant layer; 3. a first cavity; 4. a reinforcing layer; 5. a second cavity; 6. a bump; 7. an insulating layer; 8. a clamping block; 9. a card slot; 10. a third cavity; 11. a cable wire; 12. a limiting block; 13. a limiting groove; 14. reinforcing wires; 15. a second flame retardant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the light flame-retardant mineral insulated cable of the utility model comprises a cable sheath and a cable wire 11, wherein the cable sheath wraps the cable wire 11, the cable sheath is sequentially provided with an anticorrosive layer 1, a first flame-retardant layer 2, a reinforcing layer 4, an insulating layer 7 and a second flame-retardant layer 15 from outside to inside, the anticorrosive layer 1, the first flame-retardant layer 2, the reinforcing layer 4, the insulating layer 7 and the second flame-retardant layer 15 are sequentially bonded by flame-retardant glue, a plurality of first cavities 3 are arranged inside the first flame-retardant layer 2, a plurality of bumps 6 are arranged on the lower surface of the reinforcing layer 4, second cavities 5 are formed among the bumps 6, a plurality of third cavities 10 are arranged inside the second flame-retardant layer 15, and a plurality of anti-slip blocks are arranged on the inner wall of the second flame-retardant layer 15.

In order to improve the practicability of the structure, the structure is improved in that a clamping groove 9 is formed in the outer wall of the second flame-retardant layer 15, a clamping block 8 is arranged on the inner wall of the insulating layer 7, the clamping block 8 and the clamping groove 9 are matched with each other, and the second flame-retardant layer 15 and the insulating layer 7 can be connected more firmly through the mutual matching of the clamping block 8 and the clamping groove 9.

In order to prolong the service life of the structure, the utility model improves that a plurality of anti-abrasion blocks are arranged on the outer wall of the anti-corrosion layer 1, and the anti-abrasion performance of the outer surface of the anti-corrosion layer 1 can be improved through the arranged anti-abrasion blocks.

In order to improve the strength of the structure, the utility model improves that a plurality of reinforcing wires 14 are arranged inside the first flame-retardant layer 2, and the reinforcing wires 14 penetrate through the first cavity 3.

In order to improve the using effect of the structure, the utility model has the improvement that the first flame-retardant layer 2 and the first flame-retardant layer 2 are both made of polyvinyl chloride, the insulating layer 7 is made of PVC polyethylene, the polyvinyl chloride has strong flame retardance, light weight and high safety coefficient, and the PVC polyethylene is light in weight, waterproof, moistureproof and good in heat insulation and flame retardant property.

In conclusion, when the light flame-retardant mineral insulated cable is used, the anti-corrosion layer 1, the first flame-retardant layer 2, the reinforcing layer 4, the insulating layer 7 and the second flame-retardant layer 15 are sequentially bonded by the flame-retardant adhesive, so that the structure is more convenient to manufacture, the cable sheath can have external flame-retardant and internal flame-retardant effects through the first flame-retardant layer 2 and the second flame-retardant layer 15, the safety coefficient of the structure in use is improved, the corrosion resistance of the cable sheath can be improved through the arranged anti-corrosion layer 1, the service life of the structure is prolonged, the structure has a good insulating effect in use through the arranged insulating layer 7, the structure can be more stable in operation through the plurality of anti-slip blocks arranged on the inner wall of the second flame-retardant layer 15, and under the condition that the normal use of the structure is not influenced, the working materials of the structure are reduced, so that the structure is more portable when in use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A light flame-retardant mineral insulated cable is characterized by comprising a cable sheath and cable wires (11), the cable sheath wraps cable wires (11), the cable sheath is sequentially provided with an anticorrosive layer (1), a first flame-retardant layer (2), a reinforcing layer (4), an insulating layer (7) and a second flame-retardant layer (15) from outside to inside, the anti-corrosion layer (1), the first flame-retardant layer (2), the reinforcing layer (4), the insulating layer (7) and the second flame-retardant layer (15) are sequentially bonded by flame-retardant glue, a plurality of first cavities (3) are arranged in the first flame-retardant layer (2), a plurality of convex blocks (6) are arranged on the lower surface of the reinforcing layer (4), second cavities (5) are formed among the convex blocks (6), the interior of the second flame-retardant layer (15) is provided with a plurality of third cavities (10), and the inner wall of the second flame-retardant layer (15) is provided with a plurality of anti-skid blocks.

2. A light flame-retardant mineral-insulated cable according to claim 1, characterized in that the outer wall of the second flame-retardant layer (15) is provided with a clamping groove (9), the inner wall of the insulating layer (7) is provided with a clamping block (8), and the clamping block (8) and the clamping groove (9) are mutually matched.

3. A light flame retardant mineral insulated cable according to claim 1, characterized in that the outer wall of the corrosion protection layer (1) is provided with a plurality of wear blocks.

4. A lightweight flame retardant mineral insulated cable according to claim 1, characterized in that the first flame retardant layer (2) is provided with a plurality of reinforcing filaments (14) inside, the reinforcing filaments (14) extending through the first cavity (3).

5. A light flame retardant mineral insulated cable according to claim 1, characterized in that the first flame retardant layer (2) and the first flame retardant layer (2) are both made of polyvinyl chloride.

6. A light flame retardant mineral insulated cable according to claim 1, characterized in that the insulating layer (7) is PVC polyethylene.