CN201281773Y - High intensity wear-resistant optical cable - Google Patents
High intensity wear-resistant optical cable Download PDFInfo
- Publication number
- CN201281773Y CN201281773Y CNU2008201600686U CN200820160068U CN201281773Y CN 201281773 Y CN201281773 Y CN 201281773Y CN U2008201600686 U CNU2008201600686 U CN U2008201600686U CN 200820160068 U CN200820160068 U CN 200820160068U CN 201281773 Y CN201281773 Y CN 201281773Y
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- optical cable
- layer
- high strength
- optical
- steel wire
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Abstract
The utility model relates to a high-strength abrasion-resisting optical cable, which is characterized in that an optical fiber unit and an inner restrictive coating wrapping outside the optical fiber unit are used as a cable core, and the cable core is coated by a buffer layer, a strengthened steel-wire skein layer, an optical cable armour coat and an abrasion-resisting steel-wire skein layer from inside to outside. The high-strength abrasion-resisting optical cable is applied to a large length drilling optical communication cable which is processed through direct pullback laying instead of cutting laying, has the advantages of high strength, abrasion resistance and long service life, increases laying construction efficiency, and ensures that the quality of the optical cable is not damaged when in pullback laying through drilling.
Description
Technical field
The utility model relates to a kind of non-excavation and lays but hole directly to return and drag the high strength anti wearing and tearing optical cable that lays.
Background technology
Optical cable drilling construction method is called non-excavation type fiber cable laying method again, promptly with long universal joint drill bit in hole of underground drilling, on drill bit, connect optical cable wait to drill through after, when drill bit reclaims, optical cable returned in the hole and is dragged on the drill bit starting point.This construction method, do not need excavated pavement, be particularly suitable for passing through special sectors such as traffic major trunk roads, cultural relics and historic sites, also be suitable for railroad crossing, highway, river, river, lake, sea area section, and the optical cable that need outside tube wall, lay when being suitable for the petroleum pipe line drilling construction.Owing to return the tectonic structure complexity in hauling pipe hole, go back to the hauling pipe hole and need cement grouting, to strengthen pore, so the frictional resistance of optical cable and hole wall is very big, easily cause the wearing and tearing of optical cable outer jacket, it is very long or pipeline is longer to add hole distance, and the general armouring optical cable of prior art returns in hole and drags Shi Douhui to run into excessive friction force and return and drag resistance and impaired disconnected fibre even disconnected cable.
Summary of the invention
Return directly that frictional resistance is big when dragging cable laying operation, tensile strength is low, the deficiency of abrasion resistance properties difference in order to overcome the prior art optical cable being applied to hole, the utility model provides a kind of high strength anti wearing and tearing optical cable, making it can satisfy big length holes back and drags the cable laying operation requirement, to improve operating efficiency, guarantee the quality and the life-span of optical cable.
The technical scheme in the invention for solving the technical problem is: a kind of high strength anti wearing and tearing optical cable, form by fiber unit, inner restrictive coating, cushion, enhancing steel wire strand layer, anticorrosion inserts, optical cable protective layer and Abrasion Resistant Steels skein silk layer, it is characterized in that the inner restrictive coating with fiber unit and outsourcing thereof is a cable core, from inside to outside coat cushion successively, strengthen steel wire strand layer, optical cable protective layer and Abrasion Resistant Steels skein silk layer; Fiber unit in the above-mentioned cable core is single center beam tube or the many layer strand optical fiber bundle tubes that include optical fiber, and optical fiber bundle tubes is metal or the nonmetallic pipe with certain degree of hardness; Above-mentioned enhancing steel wire strand layer can be individual layer, bilayer or multilayer, and strand is to identical; Above-mentioned optical cable protective layer is the polypropylene rope or belt of wrapped asphalt reperfusion, or extrudes polypropylene, tygon, Polyvinylchloride and so on plastic sheath; Above-mentioned abrasion-resistant stee skein silk layer is by the equidirectional fine pith strand of wear-resisting steel wire system; The anticorrosion inserts of filling in the gap of all above-mentioned steel wire strand layers.
The beneficial effects of the utility model are intensity height, wear-resistant, and the boring that is suitable for non-excavation is returned and dragged cable laying operation, improve operating efficiency, guarantee that the optical cable quality is not impaired, long service life.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model cross-sectional view.
In Fig. 1,1. fiber unit, 2. inner restrictive coating, 3. cushion 4. strengthens steel wire strand layer, 5. anticorrosion inserts, 6. optical cable protective layer, 7. abrasion-resistant stee skein silk layer.
Embodiment
In Fig. 1, a kind of high strength anti wearing and tearing optical cable, form by fiber unit (1), inner restrictive coating (2), cushion (3), enhancing steel wire strand layer (4), an anticorrosion inserts (5), optical cable protective layer (6) and abrasion-resistant stee skein silk layer (7), it is characterized in that the inner restrictive coating (2) with fiber unit (1) and outsourcing thereof is a cable core, from inside to outside coat cushion (3) successively, strengthen steel wire strand layer (4), optical cable protective layer (6) and abrasion-resistant stee skein silk layer (7); Fiber unit in the above-mentioned cable core is single center beam tube or the many layer strand optical fiber bundle tubes that include optical fiber, and optical fiber bundle tubes is metal or the nonmetallic pipe with certain degree of hardness; Above-mentioned enhancing steel wire strand layer (4) can be individual layer, bilayer or multilayer, and strand is to identical; Above-mentioned optical cable protective layer (6) is the polypropylene rope or belt of wrapped perfusion pitch prill, or the plastic sheath of the polypropylene that extrudes, tygon, Polyvinylchloride and so on; Above-mentioned abrasion-resistant stee skein silk layer (7) is to twist system in the same way by wear-resisting steel wire fine pith; The anticorrosion inserts of filling (5) in the gap of above-mentioned all steel wire strand layers (4,7).
Claims (6)
1, a kind of high strength anti wearing and tearing optical cable, form by fiber unit (1), inner restrictive coating (2), cushion (3), enhancing steel wire strand layer (4), an anticorrosion inserts (5), optical cable protective layer (6) and Abrasion Resistant Steels skein silk layer (7), it is characterized in that the inner restrictive coating (2) with fiber unit (1) and outsourcing thereof is a cable core, from inside to outside coat cushion (3) successively, strengthen steel wire strand layer (4), optical cable protective layer (6) and abrasion-resistant stee skein silk layer (7).
2, a kind of high strength anti wearing and tearing optical cable according to claim 1 is characterized in that the fiber unit in the cable core is single center beam tube or the many layer strand optical fiber bundle tubes that include optical fiber, and optical fiber bundle tubes is metal or the nonmetallic pipe with certain degree of hardness.
3, a kind of high strength anti wearing and tearing optical cable according to claim 1, it is characterized in that strengthening steel wire strand layer (4) can be individual layer, bilayer or multilayer, strand is to identical.
4, a kind of high strength anti wearing and tearing optical cable according to claim 1 is characterized in that cushion (3) and optical cable protective layer (6) are the polypropylene rope or belt of wrapped asphalt reperfusion, or the polypropylene that extrudes, tygon, Polyvinylchloride and so on plastic sheath.
5, high strength anti wearing and tearing optical cable according to claim 1 is characterized in that abrasion-resistant stee skein silk layer (7) is to twist system in the same way by wear-resisting steel wire fine pith.
6, according to claim 1,2 or 4 described a kind of high strength anti wearing and tearing optical cables, it is characterized in that the anticorrosion inserts of filling (5) in the gap of all steel wire strand layers (4,7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201600686U CN201281773Y (en) | 2008-09-26 | 2008-09-26 | High intensity wear-resistant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201600686U CN201281773Y (en) | 2008-09-26 | 2008-09-26 | High intensity wear-resistant optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281773Y true CN201281773Y (en) | 2009-07-29 |
Family
ID=40928646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201600686U Expired - Lifetime CN201281773Y (en) | 2008-09-26 | 2008-09-26 | High intensity wear-resistant optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281773Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483502A (en) * | 2009-07-31 | 2012-05-30 | 康宁光缆系统有限责任公司 | Optical fiber cable |
| CN103414518A (en) * | 2013-07-30 | 2013-11-27 | 中煤科工集团西安研究院 | Central cable-passing type steel wire rope and escape capsule communication system with same |
-
2008
- 2008-09-26 CN CNU2008201600686U patent/CN201281773Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483502A (en) * | 2009-07-31 | 2012-05-30 | 康宁光缆系统有限责任公司 | Optical fiber cable |
| CN102483502B (en) * | 2009-07-31 | 2014-11-05 | 康宁光缆系统有限责任公司 | Optical fiber cable |
| US8965160B2 (en) | 2009-07-31 | 2015-02-24 | Corning Optical Communications LLC | Optical fiber cables |
| CN103414518A (en) * | 2013-07-30 | 2013-11-27 | 中煤科工集团西安研究院 | Central cable-passing type steel wire rope and escape capsule communication system with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090729 |