CN201845112U - Light-duty all-dielectric central-beam tube type fiber optic cable - Google Patents
Light-duty all-dielectric central-beam tube type fiber optic cable Download PDFInfo
- Publication number
- CN201845112U CN201845112U CN2010202982331U CN201020298233U CN201845112U CN 201845112 U CN201845112 U CN 201845112U CN 2010202982331 U CN2010202982331 U CN 2010202982331U CN 201020298233 U CN201020298233 U CN 201020298233U CN 201845112 U CN201845112 U CN 201845112U
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- beam tube
- light
- optical cable
- tube unit
- tube type
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Abstract
The utility model relates to a light-duty all-dielectric central-beam tube type fiber optic cable which comprises a beam tube unit arranged in the center, a jacket coated on the periphery of the beam tube unit, and reinforcing elements arranged in the jacket and at the two sides of the beam tube unit; the beam tube unit consists of a PBT (polybutylece terephthalate) loose tube, a plurality of optic fibers arranged in the loose tube, and fiber paste filled among the loose tube and the optic fibers. The reinforcing elements are flexible FRP (fiber reinforce plastic) ropes; the flexible FRP ropes are made of the ethylene-vinyl acetate copolymers and the fibers. The fiber optic cable of the utility model has lighter weight, is more flexible and cannot be influenced by lightning strikes when being applied to the outdoors as a communication cable for suspension or pipeline paving; moreover, the fiber optic cable can also be used as an indoor optical distribution cable and has broad application scope.
Description
Technical field
The utility model relates to a kind of optical cable that indoor and outdoor is used that is used for.
Background technology
The central beam tube type optical cable is the optical cable of a kind of basic pattern of outdoor use communications optical cable.It generally includes optical fiber bundle tubes, reinforcing element and sheath, wherein, and the mode that reinforcing element adopts mode that many guiding principles skein silk closes or parallel steel wire to strengthen more, owing to adopt steel wire as the anti-element of opening, so the weight of the unit volume of optical cable is heavier, bending property is relatively poor, and built on stilts subjecting to when laying is struck by lightning.
The utility model content
The technical problems to be solved in the utility model provides a kind of light weight, flexibility can be used as the optical cable that outdoor communication also can be used for house service.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of light-duty full medium central beam tube type optical cable, comprise the beam tube unit that is positioned at the center, be coated on the sheath of beam tube unit periphery and be arranged on sheath and be positioned at the reinforcing element of both sides, beam tube unit, described beam tube unit is made up of PBT pine sleeve pipe, the multifiber in loose sleeve pipe and the fine cream that is filled between loose sleeve pipe and the optical fiber, described reinforcing element is flexible FRP rope, and described flexible FRP rope is made by ethene one acetate ethylene copolymer and fiber.
Further, described flexible FRP rope and the bonding setting of sheath.
Described fiber is one or more in ultra high modulus polyethylene fibre, glass fibre, the aramid fiber.
Because technique scheme utilization, the utility model compared with prior art has following advantage: its reinforcing element of the utility model optical cable adopts flexible FRP rope to replace existing steel wire as the anti-element of opening, make that the weight of optical cable is lighter, the optical cable religion is soft, communications optical cable as built on stilts or pipeline laying is applied in the outdoor influence that can not be struck by lightning, and it also can be used as the use of house service optical cable, wide accommodation.
Description of drawings
Accompanying drawing 1 is the utility model cable configuration cut-open view;
Wherein: 1, beam tube unit; 11, loose sleeve pipe; 12, optical fiber; 13, fine cream; 2, sheath; 3, reinforcing element;
Embodiment
Below in conjunction with accompanying drawing, the utility model preferred embodiment is elaborated:
Optical cable as shown in Figure 1; its mainly by the beam tube unit 1 that is positioned at the center, be coated on the sheath 2 of beam tube unit 1 periphery and the reinforcing element 3 that is arranged on sheath 2 and is positioned at 1 both sides, beam tube unit is formed; wherein; the loose sleeve pipe 11 that beam tube unit 1 is made by the PBT material, be arranged on the multi-core fiber 12 in the loose sleeve pipe 11 and the fine cream 13 that is filled between loose sleeve pipe 11 and the optical fiber 12 is formed; optical fiber 12 can be selected single mode or multimode optical fiber for use according to use occasion; when being used for inside cable, can adopt the G657 optical fiber of bend-insensitive.Fine cream 13 adopts the fine cream of thixotropy, thereby can play moistureproof and stress protective effect to optical fiber 12, prevents the static fatigue of optical fiber, guarantees the serviceable life of optical fiber.Sheath 2 can adopt black polyethylene protective cover material or low-smoke halogen-free polyolefin protective cover material to make.To be elaborated to reinforcing element 3 below:
In the present embodiment, reinforcing element 3 is a flexible FRP rope, and it is to adopt thermoplasticity EVA resin as bonding agent, is that reinforcing material is made with ultra high modulus polyethylene fibre or glass fibre or aramid fiber, and it is soft, is different from traditional FRP rod.
Particularly, the flexibility of FRP rope mainly embodies by the EVA resin, and the EVA resin is an ethylene-vinyl acetate copolymer, be by ethene (E) and vinyl acetate (VA) copolymerization and make, English name is: Ethylene Vinyl Acetate, abbreviate EVA as, and the characteristics of EVA resin are to have good flexibility, elasticity as the rubber, still can have pliability preferably under-50 ℃, the transparency and surface gloss property are good, and chemical stability is good, anti-aging and anti-ozone intensity is good, avirulence.Good with the miscibility of filler, painted good with processing and forming.It concerns very big with vinyl acetate content and molecular weight, melt index (MI).When melting index (MI) certain, when vinyl acetate (VA) content improves, its elasticity, flexibility, intermiscibility, the transparencys etc. are also along with improve.When VA content reduced, then performance approached tygon, and rigidity increases, and wearing quality, electrical insulating property improve.And traditional F RP rod is to form as bonding agent and fiber typing with heat cured epoxy resin or unsaturated polyester, and its rigidity is higher.
The utility model optical cable is owing to adopt flexible FRP rope, and it can be as steel wire, and the parallel very easily outer rim both sides, beam tube unit that are placed on are as reinforcing element, so make optical cable have good flexibility.Simultaneously, because flexible FRP rope adopts thermoplasticity EVA plastics as bonding agent,, have the adhesion of certain degree between flexible FRP rope and the sheath material so extrude in the process at cable jacket, make the sheath 2 that forms tightly bond together, further increased the stability of cable configuration with the FRP rope.
The light-duty full medium central beam tube type communications optical cable structure of the utility model is light and handy, simple for production, and the scope of application is wider.If adopt the core number more after a little while, center beam tube size can be done very for a short time, and whole cable outer diameter can be comparable with the covered wire cable of routine, can make multi-purpose inside cable and use.Because optical fiber has the protection of fine cream and PBT beam tube in this structure, so outclass conventional covered wire cable in long-term optics, mechanical property and the serviceable life of optical fiber.When being used as the service wire of inside cable, then can be struck by lightning and electromagnetic interference (EMI).So the utility model optical cable both can be used as the outdoor communications optical cable of built on stilts or pipeline laying, also can be used as the house service optical cable and use.
Claims (5)
1. light-duty full medium central beam tube type optical cable, comprise the beam tube unit (1) that is positioned at the center, be coated on the sheath (2) of beam tube unit (1) periphery and be arranged on sheath (2) and be positioned at the reinforcing element (2) of both sides, beam tube unit (1), described beam tube unit (1) by PBT pine sleeve pipe (11), be positioned at the multifiber (12) of loose sleeve pipe (11) and be filled in loose sleeve pipe (11) with optical fiber (12) between fine cream (13) form, it is characterized in that: described reinforcing element (2) is that flexible FRP restricts.
2. light-duty full medium central beam tube type optical cable according to claim 1 is characterized in that: described flexible FRP rope and the bonding setting of sheath (2).
3. according to any the described light-duty full medium central beam tube type optical cable in the claim 1 to 2, it is characterized in that: described optical fiber (12) is single mode or multimode optical fiber.
4. light-duty full medium central beam tube type optical cable according to claim 3 is characterized in that: described fine cream (13) adopts the fine cream of thixotropy.
5. light-duty full medium central beam tube type optical cable according to claim 3, it is characterized in that: described sheath (2) is made by black polyethylene protective cover material or low-smoke halogen-free polyolefin protective cover material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202982331U CN201845112U (en) | 2010-08-20 | 2010-08-20 | Light-duty all-dielectric central-beam tube type fiber optic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202982331U CN201845112U (en) | 2010-08-20 | 2010-08-20 | Light-duty all-dielectric central-beam tube type fiber optic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845112U true CN201845112U (en) | 2011-05-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202982331U Expired - Lifetime CN201845112U (en) | 2010-08-20 | 2010-08-20 | Light-duty all-dielectric central-beam tube type fiber optic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845112U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048757A (en) * | 2013-01-16 | 2013-04-17 | 吴江市胜信光电科技有限公司 | All-dielectric central tube type optical cable |
| CN103424830A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Butterfly self-support type sensing cable |
| CN103424831A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Round ADSS (all-dielectric self-supporting optic fiber cable) |
-
2010
- 2010-08-20 CN CN2010202982331U patent/CN201845112U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048757A (en) * | 2013-01-16 | 2013-04-17 | 吴江市胜信光电科技有限公司 | All-dielectric central tube type optical cable |
| CN103424830A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Butterfly self-support type sensing cable |
| CN103424831A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Round ADSS (all-dielectric self-supporting optic fiber cable) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TONGDING INTERCONNECTION INFORMATION CO., LTD. Free format text: FORMER NAME: JIANGSU TONGDING OPTICAL + ELECTRIC TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Wujiang Zhenze Town District of Suzhou City, Jiangsu province 215233 eight Xiaoping Avenue No. 8 Patentee after: The logical interconnected information limited company of ancient cooking vessel Address before: 215233 Wujiang City, Jiangsu Province eight Zhenze Town Development Zone Xiaoping Road No. 18 Patentee before: Jiangsu Tongding Optical & Electric Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110525 |
|
| CX01 | Expiry of patent term |