CN203720422U - Optical fiber cable for micro-trench of road surface - Google Patents
Optical fiber cable for micro-trench of road surface Download PDFInfo
- Publication number
- CN203720422U CN203720422U CN201420104742.4U CN201420104742U CN203720422U CN 203720422 U CN203720422 U CN 203720422U CN 201420104742 U CN201420104742 U CN 201420104742U CN 203720422 U CN203720422 U CN 203720422U
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- Prior art keywords
- optical cable
- microgroove
- pavement
- sheath
- optical fiber
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Abstract
The utility model belongs to the technical field of optical fiber cables and specifically relates to an optical fiber cable for a micro-trench of a road surface. The optical fiber cable comprises a sheath; two loose tubes are arranged in the sheath in parallel straightly; optical fibers are arranged in the loose tubes and are fixed in the loose tubes through filler; and reinforcing members are arranged between the loose tubes and the sheath. The double tubes are arranged in the optical fiber cable with the same size, so that the density of the optical fibers is doubled, the information transmission capacity is increased and the maintenance cost is saved.
Description
Technical field
The utility model belongs to optical cable technology field, relates in particular to a kind of pavement microgroove optical cable.
Background technology
Operator's communication line first stage of construction, because business is single, construction fund is limited in addition, has only considered base-station transmission optical cable construction demand in the time of pipe-line construction.Current constantly soaring along with portfolio, the improving constantly of service request, the distance between base station has tapered to hundreds of rice by several kilometers, and the optical cable that makes to connect base station is more and more, and then needs more conduit resource to support transmission network construction.
In recent years, Government and enterprise is to the demand of data service in growth at full speed, and data service has become the focus of each operator contention, and they march data service field one after another, and existing conduit resource is had too many difficulties to cope with.
Along with continuous expansion and the extension of transmission network, also need more and more thinner to the management of network, so formed gradually core layer, convergence-level and Access Layer hierarchical administrative model in local network, the network of different levels need to lay different optical cables, and this makes part Important Sections, turnover important node etc. locate pipeline shortage.
Pavement microgroove optical cable is to grow up under the background of conduit resource scarcity, is that a kind of size is less and be easy to the optical cable of laying, and it is laid and only need on road surface, open narrow groove one, and optical cable is imbedded in groove, and then backfill, recovers original road surface.Existing pavement microgroove optical cable is mainly made up of cable core (optical fiber), filling material, stiffener and sheath, and cable core is filled thing and is fixed in a loose sleeve pipe, and stiffener and sheath are located at outside loose sleeve pipe.Filling material mainly plays resistance effect, and stiffener plays resistance to compression, slow pressure effect, and sheath plays a protective role.
The cable core of existing pavement microgroove optical cable is generally 4-12 core, and communication capacity is less, along with improving constantly of volume of transmitted data, often can cause line signal shakiness, has increased the frequency and the maintenance cost of pavement microgroove optical cable later maintenance.In addition, in termite and the many areas of mouse, original optical cable can not be stablized use for a long time.
Utility model content
The purpose of this utility model is to provide a kind of pavement microgroove optical cable, to solve the above problems.
In embodiment of the present utility model, a kind of pavement microgroove optical cable is provided, comprising: sheath, the interior straight two loose sleeve pipes that are arranged with in parallel of sheath; In pine sleeve pipe, be provided with optical fiber, optical fiber is fixed in loose sleeve pipe by filling material; Between pine sleeve pipe and sheath, be provided with stiffener.
Further, sheath is nylon sheath wire;
Further, optical fiber is single-mode fiber;
Further, filling material is the filament that blocks water, and the filament that blocks water is made up of twisted wire fine yarn and water-proofing powder;
Further, stiffener comprises the water resistance aramid fiber rod in soft buffer body and the soft buffer body of embedding;
Further, soft buffer body is fire-retardant thermoplastic elastomer;
Further, water resistance aramid fiber rod is evenly arranged at around loose sleeve pipe;
Further, the quantity of water resistance aramid fiber rod is around each nine of every loose sleeve pipes.
Compared with prior art the beneficial effects of the utility model are: by two sleeve pipes (loose sleeve pipe) are set in same size optical cable, make density of optic fibre increase by one times, improved communication capacity, saved maintenance cost.
Brief description of the drawings
Fig. 1 is the schematic cross-section of a kind of pavement microgroove optical cable of the utility model;
Number in the figure:
1, optical fiber; 2, the filament that blocks water; 3, loose sleeve pipe; 4, water resistance aramid fiber rod; 5, soft buffer body; 6, sheath.
Embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Shown in ginseng Fig. 1, Fig. 1 shows the schematic cross-section of a kind of pavement microgroove optical cable of the utility model.
In the present embodiment, a kind of pavement microgroove optical cable, comprising: sheath 6, the interior straight two loose sleeve pipes 3 that are arranged with in parallel of sheath 6; In pine sleeve pipe 3, be provided with optical fiber 1, optical fiber 1 is by the filament 2(filling material that blocks water) be fixed in loose sleeve pipe 3; Between pine sleeve pipe 3 and sheath 6, being provided with the excellent 4(5 of soft buffer body 5 and water resistance aramid fiber, 4 is stiffener).
The utility model arranges two loose sleeve pipes 3 in the optical cable of same size simultaneously, makes density of optic fibre increase by one times, has improved communication capacity, has saved line cost, has improved operating efficiency; The straight parallel placement of two sleeve pipes, less cable size, solves the large problem of lay configuration external diameter, has reduced construction cost.
Sheath 6 adopts the nylon sheath wire of wear-resisting, anti-oil, excellent heat resistance, can effectively prevent that mouse, termite sting infringement to the tooth of optical cable, improves the optical cable life-span.In addition, nylon sheath wire smooth surface, is beneficial to construction.
Optical fiber 1 is general single mode fiber.
The filament 2 that blocks water is made up of the good twisted wire fine yarn of water absorptivity and water-proofing powder, without ointment, can avoid ointment to pollute on-the-spot, constructability and later maintenance.
Soft buffer body 5, during for optical cable moment pressurized and release of pressure, protects loose sleeve pipe 3 inner fibers 1 to avoid pressure, preferred fire-retardant thermoplastic elastomer.
Water resistance aramid fiber rod 4, is evenly arranged at around loose sleeve pipe 3, embeds in soft buffer body 5, and every loose sleeve pipe 3 established nine water resistance aramid fiber rods 4 around.Water resistance aramid fiber rod 4 is made by water resistance aramid fiber filament is stranded, in stranded process, adds the fine powder that blocks water, outer one deck resin that protects.Water resistance aramid fiber rod 4, for strengthening optical cable tension stress, improves optical cable flexibility, has alleviated optical cable weight simultaneously, has reduced cable size, constructability.
In order to ensure enforcement of the present utility model, when design, the dimensional requirement of mould and each assembly of optical cable is more rigorous, and mould adopts the double-deck extruding process that supplies, and internal layer squeezes fire-retardant thermoplastic elastomer, the outer nylon sheath wire that squeezes; First the size aspect of each assembly of optical cable is that the external diameter of two sleeve pipes (loose sleeve pipe 3) is controlled at 1.95mm～2.05mm, wall thickness is controlled at 0.40mm～0.43mm, optical fiber 1 bend allowance is controlled at (0.30～0.60) ‰, and water resistance aramid fiber rod 4 external diameters are controlled at 0.58mm～0.62mm; Soft buffer body 5 THICKNESS CONTROL are at 1.85mm～1.95mm, and water resistance aramid fiber rod 4 circle point of contacts, inner side are controlled at 0.28mm～0.32mm from the distance of sleeve pipe, and nylon sheath wire THICKNESS CONTROL is at 0.15mm～0.25mm; Optical cable major axis, minor axis external diameter are controlled at respectively 6.15mm～6.25mm, 9.35mm～9.45mm, during due to Mould Machining, dimensional requirement is harsher, particularly the thickness evenness of nylon sheath wire is mainly to be completed by mould, so gap machining deviation is all controlled at 0.02mm between the endoporus of mould and mould, so above oversize mould phenomenon that all can result in blockage, too small meeting has influence on the centrad of whole optical cable, causes that production technology has some setbacks, operating efficiency seriously reduces.
The utility model be applicable to cable run shortage of resources and information capacity requirements larger, and termite, mouse are compared with multizone, have following technique effect:
1) in the utility model pine sleeve pipe, adopt the filament that blocks water, without ointment, avoid ointment to pollute on-the-spot, constructability and later maintenance;
2) in the utility model optical cable, can hold two loose sleeve pipes simultaneously, make light fibroblast density increase by one times, improve communication capacity, save circuit originally, improve operating efficiency;
3) the utility model sleeve pipe adopts straight parallel to put mode, has reduced cable size, solves the large problem of lay configuration external diameter, reduces construction cost;
4) the utility model pine sleeve pipe is evenly placed 9 water resistance aramid fiber rods around, has alleviated optical cable weight, has strengthened optical cable tension stress, has improved optical cable flexibility;
5) the utility model water resistance aramid fiber rod embeds in soft buffer body, saves limited space in optical cable, has reduced cable size, constructability;
6) the peripheral soft buffer body of the utility model sleeve pipe, use during for pressurized and release of pressure, protects loose sleeve pipe inner fiber to avoid pressure fast;
7) the utility model uses nylon sheath, and wear-resisting, anti-oil, excellent heat resistance, can effectively prevent that mouse, termite sting infringement to the tooth of optical cable, improves the optical cable life-span, and smooth surface, is beneficial to construction.
Listed a series of detailed description is above only illustrating for feasibility embodiment of the present utility model; they are not in order to limit protection domain of the present utility model, all do not depart from the equivalent embodiment that the utility model skill spirit does or change and all should be included in protection domain of the present utility model within.
To those skilled in the art, obviously the utility model is not limited to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present utility model or essential characteristic, can realize the utility model with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the utility model.Any Reference numeral in claim should be considered as limiting related claim.
In addition, be to be understood that, although this instructions is described according to embodiment, but be not that each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should make instructions as a whole, and the technical scheme in each embodiment also can, through appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (8)
1. a pavement microgroove optical cable, is characterized in that, comprising: sheath, the interior straight two loose sleeve pipes that are arranged with in parallel of described sheath; In described loose sleeve pipe, be provided with optical fiber, described optical fiber is fixed in described loose sleeve pipe by filling material; Between described loose sleeve pipe and described sheath, be provided with stiffener.
2. a kind of pavement microgroove optical cable according to claim 1, is characterized in that, described sheath is nylon sheath wire.
3. a kind of pavement microgroove optical cable according to claim 1, is characterized in that, described optical fiber is single-mode fiber.
4. a kind of pavement microgroove optical cable according to claim 1, is characterized in that, described filling material is the filament that blocks water, described in the filament that blocks water formed by twisted wire fine yarn and water-proofing powder.
5. a kind of pavement microgroove optical cable according to claim 1, is characterized in that, described stiffener comprises soft buffer body and embeds the water resistance aramid fiber rod in described soft buffer body.
6. a kind of pavement microgroove optical cable according to claim 5, is characterized in that, described soft buffer body is fire-retardant thermoplastic elastomer.
7. a kind of pavement microgroove optical cable according to claim 5, is characterized in that, described water resistance aramid fiber rod is evenly arranged at around described loose sleeve pipe.
8. a kind of pavement microgroove optical cable according to claim 7, is characterized in that, the quantity of described water resistance aramid fiber rod is around each nine of every described loose sleeve pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104742.4U CN203720422U (en) | 2014-03-09 | 2014-03-09 | Optical fiber cable for micro-trench of road surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420104742.4U CN203720422U (en) | 2014-03-09 | 2014-03-09 | Optical fiber cable for micro-trench of road surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720422U true CN203720422U (en) | 2014-07-16 |
Family
ID=51159563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420104742.4U Expired - Fee Related CN203720422U (en) | 2014-03-09 | 2014-03-09 | Optical fiber cable for micro-trench of road surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203720422U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823284A (en) * | 2014-03-09 | 2014-05-28 | 北京亨通斯博通讯科技有限公司 | Pavement microgroove optical cable |
| CN110662993A (en) * | 2017-06-02 | 2020-01-07 | 株式会社藤仓 | Optical fiber cable and method of manufacturing optical fiber cable |
-
2014
- 2014-03-09 CN CN201420104742.4U patent/CN203720422U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823284A (en) * | 2014-03-09 | 2014-05-28 | 北京亨通斯博通讯科技有限公司 | Pavement microgroove optical cable |
| CN103823284B (en) * | 2014-03-09 | 2016-04-27 | 北京亨通斯博通讯科技有限公司 | A kind of pavement microgroove optical cable |
| CN110662993A (en) * | 2017-06-02 | 2020-01-07 | 株式会社藤仓 | Optical fiber cable and method of manufacturing optical fiber cable |
| CN110662993B (en) * | 2017-06-02 | 2021-01-08 | 株式会社藤仓 | Optical fiber cable and method of manufacturing optical fiber cable |
| US11048054B2 (en) | 2017-06-02 | 2021-06-29 | Fujikura Ltd. | Optical fiber cable and method of manufacturing optical fiber cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20180309 |