CN210803817U

CN210803817U - Flame-retardant fire-resistant environment-friendly optical cable

Info

Publication number: CN210803817U
Application number: CN201921940018.4U
Authority: CN
Inventors: 汪广宏; 刑风云
Original assignee: Shenzhen Haitai Ruicheng Optical Cable Co ltd
Current assignee: Shenzhen Haitai Ruicheng Optical Cable Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-06-19
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a flame-retardant fire-resistant environment-friendly optical cable, which comprises a cable core, wherein an inner sheath is sleeved on the outer side of the cable core, a flame-retardant layer is sleeved on the outer side of the inner sheath, a heat-insulating layer is sleeved on the outer side of the flame-retardant layer, an outer sheath is sleeved on the outer side of the heat-insulating layer, a plurality of caulking grooves are uniformly arranged on the outer circumferential surface of the outer sheath, a fireproof coating matched with the caulking grooves is coated on the outer side of the outer sheath, and a wear; the utility model discloses a set up the oversheath and scribble in the outside of oversheath and establish fire prevention coating, constitute the first fire prevention of whole device, fire-retardant safety line, through setting up inner sheath and fire-retardant layer, the second of component device is said to prevent fires, fire-retardant safety line, and cooperation oversheath and fire prevention coating, can effectual isolated outside big fire and high temperature, realize the cable core safe operation in big fire short-term, guarantee by the interior outer information's of building of big fire separation communication smoothness, furthest's reduction conflagration causes the loss.

Description

Flame-retardant fire-resistant environment-friendly optical cable

Technical Field

The utility model belongs to the technical field of the optical cable technique and specifically relates to a fire-retardant fire-resistant environmental protection optical cable.

Background

With the continuous development of economy, urban infrastructure projects are continuously leaping forward, and at present, the urban infrastructure projects are more and more in places with dense population, such as tunnels, markets, office buildings, public places, subways and the like, so that higher requirements are provided for the safety performance under the condition of fire. The optical cable plays an important role in the facilities, is a channel for processing various information of a network, and plays an immeasurable role in escaping and disaster relief if the optical cable can bear normal operation within a certain time under the condition of fire.

At present, a fire-resistant optical cable mainly comprises an optical unit, a metal reinforcement, a metal armor, a glass ribbon or mica tape wrapping package, a halogen-free low-smoke flame-retardant polyolefin sheath and the like, wherein the metal reinforcement, the metal wire or the metal tape is particularly used for wrapping an optical cable inner layer structure to play a role in preventing flame from continuously burning towards the inside, and the halogen-free low-smoke flame-retardant polyolefin sheath is used for absorbing heat at high temperature to protect the optical cable inner layer structure and the optical unit from being damaged during burning, so that the fire-resistant optical cable can still keep good optical performance after being burnt at high temperature for a period of time. However, the optical cable containing a large number of metal structures is heavy in weight, and is inconvenient to lay and maintain later.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant fire-resistant environmental protection optical cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a fire-retardant fire-resistant environmental protection optical cable, includes the cable core, the outside cover of cable core is equipped with the inner sheath, the inner sheath is worked out by the mixed glass fiber of asbestos fibre, and the outside cover of inner sheath is equipped with fire-retardant layer, fire-retardant layer is worked out for use the metal mesh, and the outside cover on fire-retardant layer is equipped with the insulating layer, the insulating layer is selected for use the foamed plastic preparation to form, and the outside cover of insulating layer is equipped with the oversheath, the oversheath is the non-halogen low smoke flame retardant polyolefin oversheath of selecting for use, and the outer disc of oversheath is even is equipped with a plurality of caulking grooves, and the outside of oversheath is scribbled and is equipped with the fire prevention coating with caulking groove matched with, the outside cover of fire prevention coating is equipped with wear-resistant cover, scribbles fire prevention coating through setting up the oversheath, The flame-retardant safety wire is matched with the outer sheath and the fireproof coating, so that external big fire and high temperature can be effectively isolated, the cable core can safely run in the middle and short time of the big fire, smooth communication of internal and external information of a building blocked by the big fire is ensured, and loss caused by fire is reduced to the maximum extent; through setting up the wearing layer, can effectually prevent that whole device from laying the in-process, to fire retardant coating's wearing and tearing, guarantee fire retardant coating's normal use.

In a further embodiment, the cable core includes the adapter sleeve, the adapter sleeve endotheca is at the inner chamber of inner sheath, and the adapter sleeve is inside even to be equipped with a plurality of optical unit subassemblies, and it has the stopping to fill between all optical unit subassemblies, the stopping chooses sponge material preparation for use to form, the optical unit subassembly includes the pine sleeve pipe, be equipped with a plurality of optic fibres in the pine sleeve pipe, all it has fine cream to fill between the optic fibre, through setting up the stopping, can effectually reduce the friction between the protection optical unit subassembly to furthest's safety between the protection optical unit subassembly improves the life of whole device.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the oversheath and scribble in the outside of oversheath and establish fire prevention coating, constitute the first fire prevention of whole device, fire-retardant safety line, through setting up inner sheath and fire-retardant layer, constitute the second fire prevention of device, fire-retardant safety line to cooperate oversheath and fire prevention coating, can effectively isolate outside big fire and high temperature, realize the cable core in big fire short time safe operation, guarantee by the communication smoothness of the building internal and external information of big fire separation, furthest reduces the loss that the conflagration caused;

2. the utility model can effectively prevent the whole device from wearing the fireproof coating in the laying process by arranging the wear-resistant layer, thereby ensuring the normal use of the fireproof coating;

3. the utility model discloses a set up the stopping, can effectual reduction protect the friction between the light unit subassembly to safety between furthest's the protection light unit subassembly improves the life of whole device.

Drawings

FIG. 1 is a schematic structural view of a flame-retardant, fire-resistant and environment-friendly optical cable;

FIG. 2 is a schematic perspective view of a second thermal insulation layer of the flame-retardant, fire-resistant and environment-friendly optical cable;

FIG. 3 is a schematic structural diagram of a cable core of a flame-retardant, fire-resistant and environment-friendly optical cable.

In the figure: 1-cable core, 101-connecting sleeve, 102-optical unit component, 1021-loose tube, 1022-fiber paste, 1023-optical fiber, 103-filler, 2-inner sheath, 3-flame retardant layer, 4-heat insulation layer, 5-outer sheath, 6-caulking groove, 7-fireproof paint and 8-wear-resistant sleeve.

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.

Example 1

Referring to fig. 1-2, a flame-retardant, fire-resistant and environment-friendly optical cable comprises a cable core 1, wherein an inner sheath 2 is sleeved on the outer side of the cable core 1, the inner sheath 2 is woven by asbestos fiber mixed glass fiber, a flame-retardant layer 3 is sleeved on the outer side of the inner sheath 2, the flame-retardant layer 3 is woven by a metal mesh, a heat-insulating layer 4 is sleeved on the outer side of the flame-retardant layer 3, the heat-insulating layer 4 is made of foamed plastic, an outer sheath 5 is sleeved on the outer side of the heat-insulating layer 4, the outer sheath 5 is a halogen-free low-smoke flame-retardant polyolefin outer sheath, a plurality of caulking grooves 6 are uniformly formed in the outer circumferential surface of the outer sheath 5, a fireproof coating 7 matched with the caulking grooves 6 is coated on the outer side of the outer sheath 5, a wear-resistant sleeve 8 is sleeved on the outer side of the fireproof coating 7, The flame-retardant safety wire is provided with the inner sheath 2 and the flame-retardant layer 3 to form a second fireproof and flame-retardant safety wire of the device, and the second fireproof and flame-retardant safety wire is matched with the outer sheath 5 and the fireproof coating 7, so that external big fire and high temperature can be effectively isolated, the cable core 1 can safely run in the middle and short time of the big fire, smooth communication of information inside and outside a building isolated by the big fire is ensured, and loss caused by the fire is reduced to the maximum extent; through setting up wearing layer 8, can effectually prevent that whole device from laying the in-process, to the wearing and tearing of fire retardant coating 7, guarantee fire retardant coating 7's normal use.

Example 2

Referring to fig. 3, the difference from example 1 is: the cable core 1 includes adapter sleeve 101, the inner chamber of sheath 2 including adapter sleeve 101 endotheca, adapter sleeve 101 inside even be equipped with a plurality of light unit subassembly 102, it has packing 103 to fill between all light unit subassemblies 102, the packing 103 chooses sponge material preparation for use to form, light unit subassembly 102 is including pine sleeve 1021, be equipped with a plurality of optic fibres 1023 in the pine sleeve 1021, all it has fine cream 1022 to fill between the optic fibre 1023, through setting up packing 103, can effectually reduce the friction between the protection light unit subassembly 102 to safety between the furthest's the protection light unit subassembly 102 improves the life of whole device.

Working principle of examples 1-2: the outer sheath 5 is arranged, the fireproof coating 7 is coated on the outer side of the outer sheath 5, a first fireproof and flame-retardant safety line of the whole device is formed, the inner sheath 2 and the flame-retardant layer 3 are arranged, a second fireproof and flame-retardant safety line of the device is formed, and the outer sheath 5 and the fireproof coating 7 are matched, so that external big fire and high temperature can be effectively isolated, the cable core 1 can safely run in the middle and short time of the big fire, smooth communication of internal and external information of a building blocked by the big fire is ensured, and loss caused by the fire is reduced to the maximum extent; by arranging the wear-resistant layer 8, the whole device can be effectively prevented from wearing the fireproof coating 7 in the laying process, and the normal use of the fireproof coating 7 is ensured; by arranging the filler 103, friction between the light unit modules 102 can be effectively reduced, so that safety between the light unit modules 102 is protected to the maximum extent, and the service life of the whole device is prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented 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 fire-retardant fire-resistant environmental protection optical cable, includes cable core (1), its characterized in that, the outside cover of cable core (1) is equipped with inner sheath (2), and the outside cover of inner sheath (2) is equipped with fire-retardant layer (3), and the outside cover of fire-retardant layer (3) is equipped with insulating layer (4), insulating layer (4) are chooseed for use the foamed plastic preparation to form, and the outside cover of insulating layer (4) is equipped with oversheath (5), and the outer disc of oversheath (5) is even is equipped with a plurality of caulking grooves (6), and the outside of oversheath (5) is scribbled and is equipped with and caulking groove (6) matched with fire prevention coating (7), the outside cover of fire prevention.

2. The optical cable of claim 1, wherein the inner sheath (2) is woven from asbestos fiber mixed with glass fiber.

3. The flame-retardant, fire-resistant and environment-friendly optical cable as claimed in claim 1, wherein the flame-retardant layer (3) is woven by using a metal mesh.

4. The flame-retardant, fire-resistant and environment-friendly optical cable according to claim 1, wherein the outer sheath (5) is a halogen-free low-smoke flame-retardant polyolefin outer sheath.

5. The flame-retardant fire-resistant environment-friendly optical cable according to claim 1, wherein the cable core (1) comprises a connecting sleeve (101), the connecting sleeve (101) is sleeved in the inner cavity of the inner sheath (2), a plurality of optical unit components (102) are uniformly arranged in the connecting sleeve (101), and a filler (103) is filled between all the optical unit components (102).

6. The cable of claim 5, wherein the filler (103) is made of sponge.

7. The cable of claim 5, wherein the optical unit assembly (102) comprises a loose tube (1021), a plurality of optical fibers (1023) are arranged in the loose tube (1021), and a fiber paste (1022) is filled between all the optical fibers (1023).