CN201569770U - Optical fiber loose tube cable with an improved structure - Google Patents
Optical fiber loose tube cable with an improved structure Download PDFInfo
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- CN201569770U CN201569770U CN2009202692586U CN200920269258U CN201569770U CN 201569770 U CN201569770 U CN 201569770U CN 2009202692586 U CN2009202692586 U CN 2009202692586U CN 200920269258 U CN200920269258 U CN 200920269258U CN 201569770 U CN201569770 U CN 201569770U
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Abstract
The utility model relates to the technical field of optical fiber cables, and provides an improvement of a conventional optical fiber loose tube cable with parallel steelwires. The optical fiber loose tube cable with an improved structure comprises an optical fiber (1) positioned in a loose tube (2), a water-resisting layer (3) positioned outside the loose tube, an armored layer (4) positioned outside the water-resisting layer, reinforcements (5) positioned outside the armored layer and a sheathing layer (6) positioned outside the armored, wherein the reinforcements are positioned in the sheathing layer. The optical fiber loose tube cable with the improved structure is characterized in that the reinforcement (5) and the armored layer are clung to each other. Compared with the optical fiber cable in the prior art, the external diameter can be reduced by at least two times than the distance between the original reinforcements and the armored layer, and the consumption of the outer sheath can be reduced by at least 15 percent. Therefore, the cost is reduced by a larger margin, the competitiveness of the product is improved, and more resources are saved.
Description
Technical field
The utility model relates to the optical cable technology field, is the improvement of carrying the central beam tube type optical cable of parallel steel wire secretly to existing.
Background technology
Existing central beam tube type optical cable has multiple, stipulated in People's Republic of China's communication industry standard " YD/T769-2003 core net with optical cable-central beam tube type communication outdoor optical cable " that a class carries the central beam pipe optical cable of parallel steel wire secretly, its model is to have stipulated also in GYXTW, " the YD/T 981.2-2009 Access Network optical fibre band optical cable second portion: central tubular " that a class carries the central beam pipe optical cable of parallel steel wire secretly, and its model is GYDXTW; The common feature of this two classes optical cable is: they all comprise: be positioned at loose sleeve pipe optical fiber, be coated on the outer water blocking layer of loose sleeve pipe, be coated on the outer steel belt layer of water blocking layer, be positioned at the reinforcement in the steel belt layer outside and be positioned at the outer oversheath of steel belt layer; Reinforcement is positioned at oversheath, reinforcement and steel belt layer and and oversheath between any gap is all arranged.
This two classes optical cable can be described as the simple structure in the present central beam tube type optical cable, and therefore, it is low to have a cost, and external diameter is little, easily lays the advantage that density of optic fibre is big.
This two classes optical cable has all been done qualification to the minor increment at reinforcement edge and oversheath edge in standard, minimum value is 1.0mm; Add the diameter value of reinforcement itself and the distance between reinforcement and the steel belt layer, therefore, the thickness of oversheath is usually more than 2.5mm.And having the optical cable of steel belt layer usually, the minimum diameter of its oversheath requires to be 1.5mm; Therefore cost is higher relatively.
Along with people for improving constantly that cost performance requires, the price of such optical cable of customer requirements can be more cheap, can not reduce any performance of optical cable simultaneously again; For production firm, Continual Improvement also is their unremitting pursue, therefore, also needs to make the consumption of material fewer.
The utility model content
The purpose of this utility model is in order to satisfy above-mentioned requirements, a kind of central beam tube type optical cable that improves structure to be provided.It is realized by the following technical solutions:
Improve the central beam tube type optical cable of structure, it comprises the light transmitting fiber 1 that is positioned within the loose sleeve pipe 2, be positioned at water blocking layer 3 outside the loose sleeve pipe, be positioned at armor 4 outside the water blocking layer, be positioned at the reinforcement 5 outside the armor and be positioned at restrictive coating 6 outside the armor; Reinforcement is positioned at restrictive coating; It is characterized in that: reinforcement 5 is close to armor.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that being filled with the material that blocks water in the gap within the described loose sleeve pipe; The described material that blocks water is petroleum jelly or water-proofing powder or water blocking yarn.
The central beam tube type optical cable of above-mentioned described improvement structure, the material that it is characterized in that described loose sleeve pipe is parylene's butanediol ester or modified polypropene.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described water blocking layer is waterstop or water blocking yarn or nonwoven fabrics.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described armor is the steel band of the steel band of embossing not or embossing or the not aluminium strip of embossing or the aluminium strip or the glass fiber tape of embossing.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described reinforcement is steel wire or Fibreglass Reinforced Plastics.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described reinforcement is at least two, and reinforcement distributes along the armor outer symmetrical or asymmetricly.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that the convex body 7 that protrudes this oversheath edge is arranged on the described oversheath; And some is positioned at described reinforcement within the convex body.
The central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described light transmitting fiber is at least one.
Further, the central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described light transmitting fiber is positioned within the fibre ribbon 11.
Further, the central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described fibre ribbon has one at least; Be positioned within the loose sleeve pipe in stacked mode when having many.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, the material of described oversheath are plastics.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described convex body can be many; And be distributed in the oversheath edge symmetrical or asymmetricly.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, the diameter of described reinforcement can be identical, also can be inequality.
The central beam tube type optical cable that adopts the utility model to improve structure is compared with optical cable of the prior art, and external diameter can reduce the distance between original reinforcement of twice and the armor at least; The oversheath consumption can reduce 15% at least; Therefore, can reduce cost greatly, improve the power of striving unexpectedly of product, save more resources.
Description of drawings
Fig. 1 is one section a perspective exploded view of the utility model embodiment one;
Fig. 2 is the front view of Fig. 1;
Fig. 3 is one section a perspective exploded view of the utility model embodiment two;
Fig. 4 is the front view of Fig. 3;
Fig. 5 is one section a perspective exploded view of the utility model embodiment three;
Fig. 6 is the front view of Fig. 5;
Fig. 7 is one section a perspective exploded view of the utility model embodiment four;
Fig. 8 is the front view of Fig. 7.
Embodiment
Below in conjunction with embodiment the utility model is described in detail.
Embodiment one
See also Fig. 1 and Fig. 2, improve the central beam tube type optical cable of structure, it comprises the light transmitting fiber 1 that is positioned within the loose sleeve pipe 2, be positioned at water blocking layer 3 outside the loose sleeve pipe, be positioned at armor 4 outside the water blocking layer, be positioned at the reinforcement 5 outside the armor and be positioned at restrictive coating 6 outside the armor; Reinforcement is positioned at restrictive coating; It is characterized in that: reinforcement 5 is close to armor; The material of pine sleeve pipe is parylene's butanediol ester; Water blocking layer is a waterstop; Armor is the steel band of embossing; Reinforcement is a steel wire; Reinforcement is two, and reinforcement distributes along the armor outer symmetrically; Light transmitting fiber has four.
The central beam tube type optical cable that adopts the utility model to improve structure is compared with optical cable of the prior art, and external diameter can reduce the distance between original reinforcement of twice and the armor at least; The oversheath consumption has reduced 15%; Therefore, can reduce cost greatly, improve the power of striving unexpectedly of product, save more resources.
Embodiment two
See also Fig. 3 and Fig. 4, basic difference is: described reinforcement has four with implementing one, and asymmetric distributes along the armor outer.
Because increased the quantity of reinforcement, therefore, the diameter of reinforcement can reduce relatively, therefore, the entire outer diameter of optical cable can further be dwindled, and can save the material consumption of oversheath more; The consumption of oversheath can reduce 25%.
Embodiment three
See also Fig. 5 and Fig. 6, basic with implementing one, difference is: two convex bodies 7 that protrude this oversheath edge are arranged on the described oversheath; And some is positioned at described reinforcement within the convex body; And the convex body distributes symmetrically along the outer jacket edge.
Because the existence of convex body, and reinforcement has part to be positioned at the convex body, therefore, the thickness of cable outer sheath can attenuate, therefore, and on arbitrary xsect, the position of cable size maximum, minimizing value are the distance between original reinforcement of twice and the armor, and the size of position minimizing is more in addition; So can save the material consumption of oversheath more; The consumption of oversheath can reduce 40%; Reach the lower purpose of cost.
Embodiment four
See also Fig. 7 and Fig. 8, basic with implementing three, difference is: described light transmitting fiber is positioned within the fibre ribbon 11; Optical fiber has four; Fibre ribbon is positioned within the loose sleeve pipe in stacked mode.
Because fibre ribbon is positioned in the loose sleeve pipe, therefore, except that having above-mentioned advantage, the fibre core density of optical cable is higher.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment also can be filled with the material that blocks water in the gap within the described loose sleeve pipe; The described material that blocks water is petroleum jelly or water-proofing powder or water blocking yarn.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, the material of described loose sleeve pipe can be parylene's butanediol ester or modified polypropene.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described water blocking layer can be waterstop or water blocking yarn or nonwoven fabrics.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described armor can be the steel band of the steel band of embossing not or embossing or the not aluminium strip of embossing or the aluminium strip or the glass fiber tape of embossing.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described reinforcement can be steel wire or Fibreglass Reinforced Plastics.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described reinforcement is at least two, and reinforcement distributes along the armor outer symmetrical or asymmetricly.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment can be provided with the convex body 7 that protrudes this oversheath edge on the described oversheath; And some is positioned at described reinforcement within the convex body.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described light transmitting fiber are at least one.
Further, the central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described light transmitting fiber is positioned within the fibre ribbon 11.
Further, the central beam tube type optical cable of above-mentioned described improvement structure is characterized in that described fibre ribbon has one at least; Be positioned within the loose sleeve pipe in stacked mode when having many.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, the material of described oversheath are plastics.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, described convex body can be many; And be distributed in the oversheath edge symmetrical or asymmetricly.
Certainly, the central beam tube type optical cable of the improvement structure described in above-mentioned arbitrary embodiment, the diameter of described reinforcement can be identical, also can be inequality.
This paper understands exemplary embodiment of the utility model and present preferred implementation specifically, should be appreciated that the utility model design can be by other various forms enforcement utilizations, and they drop in the protection domain of the present utility model equally.
Claims (10)
1. improve the central beam tube type optical cable of structure, it comprises the light transmitting fiber (1) that is positioned within the loose sleeve pipe (2), be positioned at water blocking layer (3) outside the loose sleeve pipe, be positioned at armor (4) outside the water blocking layer, be positioned at the reinforcement (5) outside the armor and be positioned at restrictive coating (6) outside the armor; Reinforcement is positioned at restrictive coating; It is characterized in that: reinforcement (5) is close to armor.
2. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: be filled with the material that blocks water in the gap within the described loose sleeve pipe; The described material that blocks water is petroleum jelly or water-proofing powder or water blocking yarn.
3. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: the material of described loose sleeve pipe is parylene's butanediol ester or modified polypropene; Described water blocking layer is waterstop or water blocking yarn or nonwoven fabrics; Described armor is the steel band of the steel band of not embossing or embossing or the not aluminium strip of embossing or the aluminium strip or the glass fiber tape of embossing; Described reinforcement is steel wire or Fibreglass Reinforced Plastics; The material of described oversheath is plastics.
4. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: described reinforcement is at least two, and reinforcement distributes along the armor outer symmetrical or asymmetricly.
5. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: the convex body (7) that protrudes this oversheath edge is arranged on the described oversheath; And some is positioned at described reinforcement within the convex body.
6. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: described light transmitting fiber is at least one.
7. according to the central beam tube type optical cable of the described improvement structure of claim 6, it is characterized in that: described light transmitting fiber is positioned within the fibre ribbon (11).
8. according to the central beam tube type optical cable of the described improvement structure of claim 7, it is characterized in that: described fibre ribbon has one at least; Be positioned within the loose sleeve pipe in stacked mode when having many.
9. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: described convex body can be many; And be distributed in the oversheath edge symmetrical or asymmetricly.
10. according to the central beam tube type optical cable of the described improvement structure of claim 1, it is characterized in that: the diameter of described reinforcement is identical or inequality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202692586U CN201569770U (en) | 2009-11-11 | 2009-11-11 | Optical fiber loose tube cable with an improved structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202692586U CN201569770U (en) | 2009-11-11 | 2009-11-11 | Optical fiber loose tube cable with an improved structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569770U true CN201569770U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202692586U Expired - Fee Related CN201569770U (en) | 2009-11-11 | 2009-11-11 | Optical fiber loose tube cable with an improved structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN201569770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837954A (en) * | 2014-02-26 | 2014-06-04 | 汕头高新区奥星光通信设备有限公司 | Central-tube-type ribbon optical fiber cable with improved structure |
-
2009
- 2009-11-11 CN CN2009202692586U patent/CN201569770U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837954A (en) * | 2014-02-26 | 2014-06-04 | 汕头高新区奥星光通信设备有限公司 | Central-tube-type ribbon optical fiber cable with improved structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20101111 |