CN206002731U

CN206002731U - Flame-retardant waterproof is mining covered wire cable

Info

Publication number: CN206002731U
Application number: CN201620949388.4U
Authority: CN
Inventors: 张开华
Original assignee: Sichuan Yuantong Communication Co Ltd
Current assignee: Sichuan Yuantong Communication Co Ltd
Priority date: 2016-08-26
Filing date: 2016-08-26
Publication date: 2017-03-08
Anticipated expiration: 2026-08-26

Abstract

The utility model discloses a kind of mining covered wire cable of flame-retardant waterproof; including cable core and the protective layer of the cladding cable core; the cable core includes a PBT Loose tube and at least one optical fiber; the optical fiber is located in the PBT Loose tube; it is filled with, between the PBT Loose tube and the optical fiber, the material that blocks water; the protective layer is followed successively by water blocking layer, aramid fiber spun yarn layer, flame retardant coating, inner restrictive coating, armor and external sheath layer from the inside to the outside; two reinforcements being parallel to each other are embedded with the inner restrictive coating, are provided with tear rope between the armor and the inner restrictive coating.The optical cable simple and reasonable for structure, which has good mechanical performance, fire resistance, fire resistance and block-water performance, disclosure satisfy that the use requirement in optical fiber cable for mine.

Description

Flame-retardant waterproof is mining covered wire cable

Technical field

The utility model is related to optical cable technology field, specially a kind of flame-retardant waterproof is mining covered wire cable.

Background technology

Because mine is Frequent Accidents ground, optical fiber cable for mine is also additionally arranged resistance in addition to inheriting optical fiber cable over-all properties and requiring The requirements such as combustion characteristic, make which be maintained to communication when unexpected fire occurs.

The structure of existing coal mine flame-retardant optical cable is substantially made up of optical fiber, Loose tube, reinforcement and sheath.Sheath is divided into Inner sheath and oversheath two-layer, inner sheath are extruded by common polyethylene or flame-proof material and are formed, and oversheath is protected by flame-proof polyethylene Set or flame-proof polyvinyl chloride sheath composition.Under prior art, coal mine flame-retardant optical cable relies primarily on flame-proof polyethylene sheath or fire-retardant Pvc sheath reaching fire-retardant purpose, but the fire prevention of existing optical cable and anti-fire performance can not be satisfied with fire resisting will Ask, and its water resistance is also not good enough.

Utility model content

The purpose of this utility model is to provide a kind of flame-retardant waterproof mining covered wire cable, to solve above-mentioned background technology The problem of middle proposition.

For achieving the above object, the utility model provides following technical scheme：A kind of flame-retardant waterproof is mining covered wire cable, Including cable core and the protective layer of the cladding cable core, the cable core includes a PBT Loose tube and at least one optical fiber, the optical fiber In the PBT Loose tube, it is filled with, between the Loose tube and the optical fiber, the material that blocks water, the protective layer is from the inside to the outside Water blocking layer, aramid fiber spun yarn layer, flame retardant coating, inner restrictive coating, armor and external sheath layer is followed successively by, is embedded with the inner restrictive coating Two reinforcements being parallel to each other, are provided with tear rope between the armor and the inner restrictive coating.

Preferably, the material that blocks water is for the fine cream that blocks water.

Preferably, the water blocking layer is water blocking yarn or at least one in waterstop.

Preferably, the flame retardant coating is made using fire-resistant isinglass belt.

Preferably, the material of the armor is steel band or aluminium strip.

Preferably, the inner restrictive coating and the external sheath layer are all made using Zero halogen flame resistance polyethylene.

Preferably, the quantity of the optical fiber is 1-12 root.

Compared with prior art, the beneficial effects of the utility model are：The simple structure of the optical cable, by PBT pine set Arrange between pipe and optical fiber and block water material and water blocking layer is set on the outside of PBT Loose tube so that the optical cable has good resistance Aqueous energy, meanwhile, the optical cable is additionally provided with the flame retardant coating being made up of fire-resistant isinglass belt, and the flame retarding construction of multilayer, greatly increases The strong fire resisting of the optical cable and fire resistance so as to be more applicable for the fields such as colliery, in addition, the inner restrictive coating of the optical cable is embedded Two reinforcements are provided with, and its armor is made up of steel band or aluminium strip, enhances the mechanical performance of optical cable.

Description of the drawings

Fig. 1 is structural representation of the present utility model；

In figure：1st, external sheath layer, 2, armor, 3, inner restrictive coating, 4, reinforcement, 5, flame retardant coating, 6, aramid fiber spun yarn layer, 7, Water blocking layer, 8, PBT Loose tube, 9, block water material, 10, optical fiber, 11, tear rope.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment for being obtained, belongs to the scope of the utility model protection.

Fig. 1 is referred to, the utility model provides a kind of technical scheme：A kind of flame-retardant waterproof is mining covered wire cable, including Cable core and the protective layer of cladding cable core.

Specifically, refering to Fig. 1, cable core includes a PBT Loose tube 8 and at least one optical fiber 10, in the present embodiment, optical fiber 10 quantity is 1-12 root, and every optical fiber 10 is respectively positioned in PBT Loose tube 8, is filled with resistance between PBT Loose tube 8 and optical fiber 10 Water substance 9, wherein, the material 9 that blocks water is the fine cream that blocks water.

Further, protective layer is followed successively by water blocking layer 7, aramid fiber spun yarn layer 6, flame retardant coating 5,3 and of inner restrictive coating from the inside to the outside Armor 2, and external sheath layer 1 has been extruded outside armor 2, water blocking layer 7 is mainly made up of water blocking yarn or waterstop, due to There is the material 9 that blocks water in PBT Loose tube 8, the water blocking layer 7 for arranging herein further enhances the block-water performance of the optical cable, In addition, for the mechanical performance for strengthening the optical cable, being embedded with two reinforcements 4 being parallel to each other, the present embodiment in inner restrictive coating 3 In, reinforcement 4 can be made up of steel wire, and the diameter of reinforcement 4 can be in 0.5mm or so, and two reinforcements 4 are respectively provided with In the both sides of inner restrictive coating 3, in addition to facilitating the stripping of optical cable, between armor 2 and inner restrictive coating 3, tear rope is provided with 11, the quantity of tear rope 11 is also two, and two tear ropes 11 are respectively positioned on the same straight line at the center of the optical cable, When peeling off to the optical cable, tear rope 11 for the center both sides of the optical cable while exert a force, can just enable the optical cable Intactly peeled off.

In the present embodiment, flame retardant coating 5 can be made using fire-resistant isinglass belt is wrapped, can play more preferable fire resisting to the optical cable Flame retardant effect.

In the present embodiment, the material of armor 2 is steel band or aluminium strip.

In the present embodiment, inner restrictive coating 3 and external sheath layer 1 are all made using Zero halogen flame resistance polyethylene.

Although being described in detail to the utility model with reference to the foregoing embodiments, those skilled in the art is come Say, which still can be modified to the technical scheme described in foregoing embodiments, or which part technical characteristic is entered Row equivalent, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement that is made etc., all should It is included within protection domain of the present utility model.

Claims

1. the mining covered wire cable of a kind of flame-retardant waterproof, it is characterised in that including cable core and coat the protective layer of the cable core, institute Stating cable core includes a PBT Loose tube（8）At least one optical fiber（10）, the optical fiber（10）Positioned at the PBT Loose tube（8） Interior, the PBT Loose tube（8）With the optical fiber（10）Between be filled with the material that blocks water（9）, the protective layer is from the inside to the outside successively For water blocking layer（7）, aramid fiber spun yarn layer（6）, flame retardant coating（5）, inner restrictive coating（3）, armor（2）And external sheath layer（1）, described interior Restrictive coating（3）The two piece reinforcements that are parallel to each other inside are embedded with（4）, the armor（2）With the inner restrictive coating（3）Between set It is equipped with tear rope（11）.

2. the mining covered wire cable of flame-retardant waterproof according to claim 1, it is characterised in that the material that blocks water（9）For Block water fine cream.

3. the mining covered wire cable of flame-retardant waterproof according to claim 1, it is characterised in that the water blocking layer（7）For resistance At least one in water yarn or waterstop.

4. the mining covered wire cable of flame-retardant waterproof according to claim 1, it is characterised in that the flame retardant coating（5）Using Fire-resistant isinglass belt is made.

5. the mining covered wire cable of flame-retardant waterproof according to claim 1, it is characterised in that the armor（2）Material Expect for steel band or aluminium strip.

6. the mining covered wire cable of flame-retardant waterproof according to claim 1, it is characterised in that the inner restrictive coating（3）With The external sheath layer（1）All made using Zero halogen flame resistance polyethylene.

7. the mining covered wire cable of flame-retardant waterproof according to claim 1, it is characterised in that the optical fiber（10）Quantity For 1-12 root.