CN213423553U

CN213423553U - Indoor optical cable suitable for pipeline wiring

Info

Publication number: CN213423553U
Application number: CN202022733557.XU
Authority: CN
Inventors: 李向波
Original assignee: Shenzhen Fi Cable Technology Co ltd
Current assignee: Shenzhen Fi Cable Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-06-11
Anticipated expiration: 2030-11-23

Abstract

The utility model provides an indoor optical cable that is fit for pipeline wiring usefulness, including low smoke and zero halogen flame retardant polyolefin oversheath, ring channel and low elastic rubber, the inside two sets of parallel steel wire reinforcement that is provided with of low smoke and zero halogen flame retardant polyolefin oversheath, low smoke and zero halogen flame retardant polyolefin oversheath inboard is provided with two-sided coating steel and moulds the composite band, two-sided coating steel is moulded composite band inboard and is provided with the filling paste that blocks water, the filling paste inboard that blocks water is provided with PBT loose tube, PBT loose tube inside is provided with the colored optic fibre of multiunit, it has the fine cream of thixotropy to fill around the colored optic fibre, the ring channel has been seted up to low smoke and zero halogen flame retardant polyolefin oversheath outside face: simple structure, convenient to use is convenient for pull the iron wire and fix the optical cable.

Description

Indoor optical cable suitable for pipeline wiring

Technical Field

The utility model relates to an indoor optical cable that suitable pipeline wiring was used belongs to optical cable technical field.

Background

Fiber optic cables are manufactured to meet optical, mechanical, or environmental performance specifications and utilize one or more optical fibers disposed in a covering jacket as the transmission medium and may be used individually or in groups as telecommunication cable assemblies. The optical cable is mainly composed of optical fibers, a plastic protective sleeve and a plastic outer skin, metals such as gold, silver, copper and aluminum and the like are not contained in the optical cable, the optical cable generally has no recycling value, the optical cable is a cable core formed by a certain number of optical fibers according to a certain mode, a sheath is wrapped outside the optical cable, an outer sheath is also wrapped outside the optical cable, the optical cable is a communication line for realizing optical signal transmission, and the indoor optical cable is an optical cable laid in a building and is mainly used for communication equipment, computers, switches, end user equipment and the like in the building. In order to communicate information. Commercial optical cables made of single mode optical fibers were used on long haul lines since 1983. In 1988, the first submarine cable spanning the atlantic ocean was successfully laid to connect between the united states and the english law, and soon, the first submarine cable spanning the pacific ocean was constructed. In 1978, China developed communication optical cables by itself, and adopted multimode optical fibers, and the cable core structure was of a layer-stranded type. On-site tests were conducted in Shanghai, Beijing, Wuhan, and so on. The optical fiber is used as an interoffice trunk line in a telephone network in the city shortly, is gradually used for a long-distance line in 1984, and begins to adopt a single-mode optical fiber. Compared with copper wire cables, the communication optical cable has larger transmission capacity, long relay distance, small volume, light weight and no electromagnetic interference, has been developed into wired transmission line backbones of long-distance trunk lines, urban relays, offshore and transoceanic submarine communications, local area networks, private networks and the like since 1976, starts to develop into the field of urban user loop wiring networks, and provides a transmission line for fiber-to-the-home and broadband integrated service digital networks.

With the rapid development of FTTH, indoor optical cables are widely used. At present, for the beauty and safety of cities, various cables are increasingly laid in a pipeline mode, and in indoor wiring, pipeline laying is also increasingly adopted. However, in the process of inserting the optical cable in the pipeline, a constructor needs to use an iron wire to pull the optical cable, the iron wire and the optical cable are not conveniently fixed, the phenomenon that the iron wire is separated from the optical cable in the pulling process can be frequently caused, and inconvenience is brought to the constructor. Therefore, the utility model provides an indoor optical cable that suitable pipeline wiring was used solves above problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a be fit for indoor optical cable that pipeline wiring was used, through increasing low smoke and zero halogen flame retardant polyolefin oversheath, ring channel and low elasticity rubber, solved and pull the fixed of being not convenient for between iron wire and the optical cable, often can appear pulling in-process iron wire and optical cable separation phenomenon, give construction worker and bring inconvenient problem, its simple structure, convenient to use is convenient for pull the iron wire and fix the optical cable.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides an indoor optical cable that is fit for pipeline wiring usefulness, includes low smoke and zero halogen flame retardant polyolefin oversheath, ring channel and low elasticity rubber, low smoke and zero halogen flame retardant polyolefin oversheath inside is provided with two sets of parallel steel wire reinforcement members, low smoke and zero halogen flame retardant polyolefin oversheath inboard is provided with two-sided coating steel and moulds compound area, two-sided coating steel is moulded compound inboard and is provided with the filling paste that blocks water, the filling paste inboard that blocks water is provided with PBT pine sleeve pipe, PBT pine sleeve pipe is inside to be provided with the colored optic fibre of multiunit, it has the fine cream of thixotropy to fill around the colored optic fibre, the ring channel has been seted up to low smoke.

Further, the annular grooves are equidistantly distributed at intervals, and the interval distance is 0.5 m.

Further, the low-elasticity rubber and the inner wall of the annular groove are fixed through gluing.

Further, the parallel steel wire reinforcing member is embedded inside the low-smoke halogen-free flame-retardant polyolefin outer sheath.

Furthermore, the plurality of groups of colored optical fibers are annularly distributed by taking the center of the low-smoke halogen-free flame-retardant polyolefin outer sheath as a base point.

The utility model has the advantages that: the utility model discloses an indoor optical cable that is fit for pipeline wiring usefulness, through increasing low smoke and zero halogen flame retardant polyolefin oversheath, ring channel and low elasticity rubber, ring channel equidistance interval distribution, make the optical cable outward appearance whole pleasing to the eye, when using the iron wire to pull the optical cable and pull, take out the inside low elasticity rubber of nearest ring channel of optical cable end, wind the iron wire inside can conveniently pull in the ring channel, the design of low elasticity rubber can avoid the ring channel card just in edges and corners department when pulling the optical cable, in the time of in-service use, more be fit for being applied to optical cable technical field.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of an indoor optical cable suitable for wiring a duct according to the present invention;

fig. 2 is a right sectional view of an indoor optical cable suitable for wiring a pipeline according to the present invention;

in the figure: 1-annular groove, 2-low elasticity rubber, 3-parallel steel wire reinforcing member, 4-low smoke halogen-free flame retardant polyolefin outer sheath, 5-double-sided coated steel-plastic composite belt, 6-water-blocking filling paste, 7-PBT loose tube, 8-thixotropic fiber paste and 9-colored optical fiber.

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. 1-2, the present invention provides a technical solution: the utility model provides an indoor optical cable that is fit for pipeline wiring usefulness, including low smoke and zero halogen fire-retardant polyolefin oversheath 4, ring channel 1 and low elasticity rubber 2, low smoke and zero halogen fire-retardant polyolefin oversheath 4 is inside to be provided with two sets of parallel steel wire reinforcement 3, low smoke and zero halogen fire-retardant polyolefin oversheath 4 inboard is provided with compound area 5 is moulded to two-sided coating steel, compound area 5 inboard is provided with the filler paste 6 that blocks water to two-sided coating steel, the filler paste 6 inboard that blocks water is provided with PBT loose tube 7, PBT loose tube 7 is inside to be provided with multiunit colored optic fibre 9, it has fine cream 8 of thixotropy to fill around the colored optic fibre 9, ring channel 1 has been seted up.

The annular grooves 1 are distributed at equal intervals, the interval distance is 0.5 m, the low-elasticity rubber 2 and the inner wall of the annular groove 1 are fixed through gluing, the parallel steel wire reinforcing member 3 is embedded inside the low-smoke halogen-free flame-retardant polyolefin outer sheath 4, and the plurality of groups of colored optical fibers 9 are distributed annularly by taking the center of the low-smoke halogen-free flame-retardant polyolefin outer sheath 4 as a base point.

As an embodiment of the present invention: 1 equidistance interval distribution of ring channel for the optical cable outward appearance is whole pleasing to the eye, when using the iron wire to pull the optical cable and pull, takes out 1 inside low elasticity rubber 2 of ring channel nearest the optical cable end, twines the iron wire and can conveniently pull in 1 inside of ring channel, and 1 card of ring channel is just in edges and corners department when pulling the optical cable can be avoided in low elasticity rubber 2's design, the utility model discloses simple structure, convenient to use is convenient for pull the iron wire and is fixed the optical 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 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 an indoor optical cable that is fit for pipeline wiring usefulness, includes low smoke and zero halogen flame retardant polyolefin oversheath, ring channel and low elasticity rubber, its characterized in that: the low-smoke halogen-free flame-retardant polyolefin outer sheath is characterized in that two groups of parallel steel wire reinforcing members are arranged inside the low-smoke halogen-free flame-retardant polyolefin outer sheath, a double-sided coated steel-plastic composite belt is arranged on the inner side of the low-smoke halogen-free flame-retardant polyolefin outer sheath, a water-blocking filling paste is arranged on the inner side of the double-sided coated steel-plastic composite belt, a PBT loose tube is arranged on the inner side of the water-blocking filling paste, a plurality of groups of colored optical fibers are arranged inside the PBT loose tube, thixotropic fiber paste is filled around the colored.

2. An indoor optical cable suitable for conduit wiring according to claim 1, wherein: the annular grooves are distributed at equal intervals, and the interval distance is 0.5 m.

3. An indoor optical cable suitable for conduit wiring according to claim 1, wherein: the low-elasticity rubber and the inner wall of the annular groove are fixed through gluing.

4. An indoor optical cable suitable for conduit wiring according to claim 1, wherein: the parallel steel wire reinforcing member is embedded inside the low-smoke halogen-free flame-retardant polyolefin outer sheath.

5. An indoor optical cable suitable for conduit wiring according to claim 1, wherein: the multiple groups of colored optical fibers are annularly distributed by taking the center of the low-smoke halogen-free flame-retardant polyolefin outer sheath as a base point.