CN101382629A - Layer stranded optical fiber ribbon cable with multi reinforcements - Google Patents
Layer stranded optical fiber ribbon cable with multi reinforcements Download PDFInfo
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- CN101382629A CN101382629A CNA2008101693172A CN200810169317A CN101382629A CN 101382629 A CN101382629 A CN 101382629A CN A2008101693172 A CNA2008101693172 A CN A2008101693172A CN 200810169317 A CN200810169317 A CN 200810169317A CN 101382629 A CN101382629 A CN 101382629A
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Abstract
The invention relates to a GYDSTA provided with a plurality of reinforcers, which at least consists of a cable core and a protecting sleeve; the cable core is positioned in the protecting sleeve, and the cable core at least comprises: filling parts, a center reinforcer, bushings, and optical-fiber ribbons positioned in the bushings; and the filling parts and the bushings are twisted together around the center reinforcer. The GYDSTA is characterized in that: the number of the filling parts are three and are tangent or have slight gap with the filling parts; the adjacent bushings are tangent or have slight gap; of course, in the cable, part of the bushings can also be replaced by packing gaskets with similar diameter; in the filling parts or the packing gaskets, at least one contains the reinforcer; and the cable core and the protecting sleeve extend along the axial direction. The GYDSTA has the following advantages of: smaller cable outer diameter, more compact structure, less consumption of packing gaskets in the cable, more economical cost and more stable and reliable cable performance when the center reinforcer is damaged.
Description
Technical field
The present invention relates to communications optical cable, especially with the layer-twisted optical fiber ribbon cable of multi reinforcements.
Background technology
In the prior art, layer-twisted optical fiber ribbon cable is made up of cable core and sheath at least; At least comprise in the cable core: central reinforce member, around the stranded sleeve pipe of central reinforce member; For stablizing of cable configuration, during cable core middle sleeve lazy weight, adopt gasket for packing to replace.In order to make the cost minimum of optical cable, the concentricity basically reinforcement of sleeve pipe, gasket for packing is tangent; Comprise fibre ribbon in the described sleeve pipe.
In addition on the one hand, the clear and definite lower limit of optical cable tensile force allowed to bear among the communication industry standard YD/T981-1998 of the People's Republic of China (PRC) " Access Network with optical fibre band optical cable the 3rd part: loose sleeve layer strand type ", stipulated that short-term minimum force value is 1500N, and changed along with the variation of fiber cable laying place, system of laying.
In the prior art, the production firm of optical cable usually limits the size of the central reinforce member of layer-twisted optical fiber ribbon cable for balance cost and pulling force requirement.Such as 72 core layer-twisted optical fiber ribbon cables commonly used, the fibre ribbon type is 12 core bands, has 6 fibre ribbons, is co-located in the sleeve pipe, and the cover external diameter of pipe is generally about 6.0mm; And to satisfy the tensile force requirement, the external diameter of the phosphatization steel wire that reinforcement adopts needs 2.0mm at least, in order to reach tangent, need to adopt in addition 3 with overlap the close gasket for packing of external diameter of pipe; And the external diameter of reinforcement also needs to amplify a little.Therefore, it is the 2.5mm steel wire as central reinforce member that production firm directly adopts diameter or to adopt diameter be that to be extruded into external diameter be that the extrusion molding spare of 2.5mm is as central reinforce member for the steel wire of 2.0mm ~ 2.4mm, adopt 3 external diameters to be about the gasket for packing of 6.0mm and this pine sleeve pipe then around the stranded formation cable core of central reinforce member, certainly, in order to make the cable core rounding, also can in the gap of loose sleeve pipe and gasket for packing and gasket for packing and gasket for packing, place 4 filling members and described gasket for packing, loose sleeve pipe in case of necessity around the stranded formation cable core of central reinforce member.
Because gasket for packing generally adopts plastics to make, plastics refine synthetic from oil, and therefore, this optical cable has increased cost to production firm virtually, has caused unnecessary cost for the optical cable user.
Because reinforcement only is distributed in the center of optical cable in the optical cable, when in a single day reinforcement damaged, properties of optical fiber cable will be affected, and therefore, this kind optical cable is relatively low for stressed reliability.
Summary of the invention
The objective of the invention is guaranteeing that optical cable satisfies under the tensile force prerequisite of industry standard requirement, reduces the consumption of gasket for packing in the layer-twisted optical fiber ribbon cable, more effectively to save cost.
Another object of the present invention is in the reliability that improves optical cable, so that it still can keep the performance of optical cable when central reinforce member is impaired.
The present invention adopts following technical scheme to realize:
The layer-twisted optical fiber ribbon cable of band multi reinforcements, it is made up of cable core 6 and sheath 7 at least; Cable core 6 is positioned at sheath 7, at least comprise in the cable core 6: filling member 5, central reinforce member 4, sleeve pipe 2, be positioned at the fibre ribbon 3 of sleeve pipe 2, filling member 5, sleeve pipe 2 are stranded around central reinforce member 4 jointly, it is characterized in that: described filling member 5 has 3, and described filling member 5 is tangent or the space is arranged slightly with close sleeve pipe 2; Be tangent between the adjacent bushings 2 or the space is arranged slightly; In described 3 filling members 5, have at least to comprise stiffener 8 in 1; Described cable core 6 and sheath 7 extend vertically.
In the above-mentioned described optical cable, also can comprise gasket for packing 1, described gasket for packing 1, filling member 5, central reinforce member 4, sleeve pipe 2, be positioned at the common cable cores 6 that form of fibre ribbon 3 of sleeve pipe 2; Gasket for packing 1, filling member 5, sleeve pipe 2 are stranded around central reinforce member 4 jointly, it is characterized in that: described filling member 5 has 3, and described filling member 5 is tangent or the space is arranged slightly with close sleeve pipe 2; Described filling member 5 is tangent or the space is arranged slightly with close gasket for packing 1; Between the adjacent bushings 2 or be tangent between the adjacent gasket for packing 1 or the space is arranged slightly; In described 3 filling members 5, have at least to comprise stiffener 8 in 1; Described gasket for packing 1 is 3 with the quantity sum of sleeve pipe 2; Described gasket for packing 1 is basic identical with the external diameter of sleeve pipe 2; Described cable core 6 and sheath 7 extend vertically.
Further, in the above-mentioned described optical cable, in the described gasket for packing 1, have at least to comprise in 1 and fill reinforcement 9.
The layer-twisted optical fiber ribbon cable of above-mentioned described band multi reinforcements is characterized in that: described gasket for packing 1 is plastics with the material of filling member 5, preferably polyethylene, polypropylene or foamed material.
The layer-twisted optical fiber ribbon cable of above-mentioned described band multi reinforcements is characterized in that: described sleeve pipe 2 materials are plastics or metal, preferred polybutylene terephthalate, modified polypropene, steel.
The layer-twisted optical fiber ribbon cable of above-mentioned described band multi reinforcements is characterized in that: described fibre ribbon 3 is preferred: 2 core bands, 4 core bands, 6 core bands, 8 core bands, 10 core bands, 12 core bands, 18 core bands, 24 core bands, or even the mixing of above-mentioned belt body.
The layer-twisted optical fiber ribbon cable of above-mentioned described band multi reinforcements is characterized in that: the material of described center stiffener 4, stiffener 8, filling reinforcement 9 is a metal or nonmetal, preferred steel wire, glass fiber reinforced plastics.
The layer-twisted optical fiber ribbon cable of above-mentioned described band multi reinforcements is characterized in that: described sheath 7 materials are plastics, preferably polyethylene, low smoke and zero halogen, PVC, polyamide, electrocorrosion-resisting protective cover material.
The layer-twisted optical fiber ribbon cable of above-mentioned described band multi reinforcements also can increase other parts, as increasing water blocking layer between sheath 7 and cable core 6, fill water-blocking material in cable core 6 gaps, increase metal protection layer outside cable core 6, increases metal level outside sheath 7; In sleeve pipe 2, fill material water-proof material etc.
Beneficial effect of the present invention: cable outer diameter is littler, more compact structure, make gasket for packing in the optical cable consumption still less, cost more saves, the performance of optical cable was more reliable and more stable when central reinforce member was impaired.
Description of drawings
Fig. 1 is the cross sectional representation of the invention process example one;
Fig. 2 is the cross sectional representation of the invention process example two;
Fig. 3 is the cross sectional representation of the invention process example three;
Fig. 4 is the cross sectional representation of the invention process example four;
Fig. 5 is the cross sectional representation of the invention process example five.
Embodiment
Below in conjunction with accompanying drawing, describe embodiment in detail.
Embodiment one:
See also Fig. 1, the layer-twisted optical fiber ribbon cable of band multi reinforcements, it is made up of cable core 6 and sheath 7; Cable core 6 is positioned at sheath 7, comprise in the cable core 6: 4,3 sleeve pipes 2 of 5,1 central reinforce member of 3 filling members, be positioned at the fibre ribbon 3 of sleeve pipe 2, filling member 5, sleeve pipe 2 are stranded around central reinforce member 4 jointly, it is characterized in that: described filling member 5 is tangent or the space is arranged slightly with close sleeve pipe 2; Be tangent between the adjacent bushings 2 or the space is arranged slightly; In described 3 filling members 5, all comprise stiffener 8 in every; Described cable core 6 and sheath 7 extend vertically.
Certainly, guaranteeing that optical cable can bear under the situation of pulling force, in above-mentioned described 3 filling members 5, can only have 1 or only have and comprise stiffener 8 in 2.
Embodiment two:
See also Fig. 2, with embodiment one, difference is substantially: have 1 velamen gasket for packing 1 to replace in the sleeve pipe 2; Described filling member 5 is tangent or the space is arranged slightly with close gasket for packing 1; Be tangent between the adjacent bushings 2 or the space is arranged slightly.
Certainly, described gasket for packing 1 also can be 2; Be tangent between the adjacent gasket for packing 1 or the space is arranged slightly this moment.
Embodiment three:
See also Fig. 3, with embodiment one, difference is substantially: have 2 velamen gasket for packings 1 to replace in the sleeve pipe 2; Described filling member 5 is tangent or the space is arranged slightly with close gasket for packing 1; Be tangent between the adjacent gasket for packing 1 or the space is arranged slightly; In described described 3 filling members 5, only have to comprise stiffener 8 in 2.
Embodiment four:
See also Fig. 4, the layer-twisted optical fiber ribbon cable of band multi reinforcements, it is made up of cable core 6 and sheath 7; Cable core 6 is positioned at sheath 7, comprises in the cable core 6: 4,2 sleeve pipes 2 of 5,1 central reinforce member of 1,3 filling members of 1 gasket for packing, be positioned at the fibre ribbon 3 of sleeve pipe 2, gasket for packing 1, filling member 5, sleeve pipe 2 are stranded around central reinforce member 4 jointly; It is characterized in that: described filling member 5 is tangent or the space is arranged slightly with close sleeve pipe 2 and gasket for packing 1; Be tangent between the adjacent bushings 2 or the space is arranged slightly; Comprise in described 3 gasket for packings 1 and fill reinforcement 9; Described cable core 6 and sheath 7 extend vertically.
Certainly, described gasket for packing 1 also can be 2; Be tangent between the adjacent gasket for packing 1 or the space is arranged slightly this moment; Can all comprise in the every gasket for packing 1 and fill reinforcement 9.
Embodiment five:
See also Fig. 5, with embodiment four, difference is substantially: in 3 filling members 5, have to comprise stiffener 8 in 1; Certainly, when the tensile force that requires can not satisfy, also stiffener 8 can be set in 2 filling members 5 in addition.
In above-mentioned arbitrary embodiment, described gasket for packing 1 is plastics with the material of filling member 5, preferably polyethylene, polypropylene or foamed material.
In above-mentioned arbitrary embodiment, described sleeve pipe 2 materials are plastics or metal, preferred polybutylene terephthalate, modified polypropene, steel.
In above-mentioned arbitrary embodiment, described fibre ribbon 3 is preferred: 2 core bands, 4 core bands, 6 core bands, 8 core bands, 10 core bands, 12 core bands, 18 core bands, 24 core bands, or even the mixing of above-mentioned belt body.
In above-mentioned arbitrary embodiment, described stiffener 4, stiffener 8, filling reinforcement 9 materials are metal or nonmetal, preferred steel wire, glass fiber reinforced plastics.
In above-mentioned arbitrary embodiment, described sheath 7 materials are plastics, preferably polyethylene, low smoke and zero halogen, PVC, polyamide, electrocorrosion-resisting protective cover material.
In above-mentioned arbitrary embodiment, also can increase other parts,, outside sheath 7, increase metal level as between sheath 7 and cable core 6, increasing water blocking layer, fill water-blocking material in cable core 6 gaps, outside cable core 6, increasing metal protection layer; In sleeve pipe 2, fill material water-proof material etc.
For 72 identical core optical cables, gasket for packing obviously can reduce 1 among the present invention, has therefore reached the consumption that reduces gasket for packing in the optical cable, more effectively to save the purpose of cost.
Of the present invention owing to be provided with at least 2 gasket for packings, therefore, can guarantee that the tensile force of optical cable meets the industry standard requirement, improved the reliability of optical cable, make it when central reinforce member is impaired, still can keep the performance of optical cable.
The above only is the present invention typical case specific embodiment; everyly be familiar with this skill personage and make various modifications or change very easily in view of the above; therefore, all equivalence replacements that claim spirit of the present invention is done that do not break away from all should be included in this patent protection domain.
Claims (8)
1. be with the layer-twisted optical fiber ribbon cable of multi reinforcements, it is made up of cable core and sheath at least; Cable core is positioned at sheath, at least comprise in the cable core: filling member, central reinforce member, sleeve pipe, be positioned at the fibre ribbon of sleeve pipe, filling member, sleeve pipe are stranded around central reinforce member jointly, it is characterized in that: described filling member has 3, and described filling member and close sleeve pipe are tangent or the space is arranged slightly; Be tangent between the adjacent bushings or the space is arranged slightly; In described 3 filling members, have at least in 1 to comprise stiffener; Described cable core and sheath extend vertically.
2. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 1 is characterized in that: described sleeve pipe has part to be filled rope to substitute, in described filling member or the gasket for packing, have at least to comprise stiffener or filling reinforcement in 1.
3. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 2, it is characterized in that: the material of described gasket for packing is plastics, preferably polyethylene, polypropylene or foamed material.
4. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 1 and 2, it is characterized in that: the material of described filling member is plastics, preferably polyethylene, polypropylene or foamed material.
5. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 1 and 2, it is characterized in that: described shell material is plastics or metal, preferred polybutylene terephthalate, modified polypropene, steel.
6. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 1 and 2, it is characterized in that: described fibre ribbon is preferred: 2 core bands, 4 core bands, 6 core bands, 8 core bands, 10 core bands, 12 core bands, 18 core bands, 24 core bands, or even the mixing of above-mentioned belt body.
7. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 1 and 2, it is characterized in that: described central reinforce member, stiffener, filling reinforcement material are metal or nonmetal, preferred steel wire, glass fiber reinforced plastics.
8. the layer-twisted optical fiber ribbon cable of no central reinforce member according to claim 1 and 2, it is characterized in that: described sheath material is plastics, preferably polyethylene, low smoke and zero halogen, PVC, polyamide, electrocorrosion-resisting protective cover material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101693172A CN101382629A (en) | 2008-10-06 | 2008-10-06 | Layer stranded optical fiber ribbon cable with multi reinforcements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101693172A CN101382629A (en) | 2008-10-06 | 2008-10-06 | Layer stranded optical fiber ribbon cable with multi reinforcements |
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|---|---|
| CN101382629A true CN101382629A (en) | 2009-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101693172A Pending CN101382629A (en) | 2008-10-06 | 2008-10-06 | Layer stranded optical fiber ribbon cable with multi reinforcements |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197394A (en) * | 2013-04-28 | 2013-07-10 | 吴江市胜信光电科技有限公司 | Layer-stranding optical cable with 1+4 structure |
| CN103424825A (en) * | 2012-05-18 | 2013-12-04 | 河南科信电缆有限公司 | High-strength optical cable |
| CN112285854A (en) * | 2020-11-06 | 2021-01-29 | 四川天府江东科技有限公司 | Compound enhancement layer stranded optical cable |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1572877A (en) * | 1977-02-23 | 1980-08-06 | Bicc Ltd | Optical cables |
| CN2165460Y (en) * | 1993-10-21 | 1994-05-18 | 高岩 | Multicore optic cable with hollow provided air pipe |
| JP2001228377A (en) * | 2000-02-18 | 2001-08-24 | Furukawa Electric Co Ltd:The | Optical fiber cord intertwining type cable |
| CN2509590Y (en) * | 2001-12-02 | 2002-09-04 | 江苏亨通光电股份有限公司 | Star-quad lead-in cable |
| JP2002303769A (en) * | 2001-04-09 | 2002-10-18 | Fujikura Ltd | Multi-fiber optical cable |
| US6472614B1 (en) * | 2000-01-07 | 2002-10-29 | Coflexip | Dynamic umbilicals with internal steel rods |
| JP2003107307A (en) * | 2001-09-27 | 2003-04-09 | Yazaki Corp | Tension member for optical fiber cable and optical fiber cable using the same |
| CN101017232A (en) * | 2007-03-07 | 2007-08-15 | 苑宝义 | High voltage optical cable |
| CN201319088Y (en) * | 2008-10-06 | 2009-09-30 | 沈群华 | Layer stranded optical fiber ribbon cable with a plurality of stiffeners |
-
2008
- 2008-10-06 CN CNA2008101693172A patent/CN101382629A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1572877A (en) * | 1977-02-23 | 1980-08-06 | Bicc Ltd | Optical cables |
| CN2165460Y (en) * | 1993-10-21 | 1994-05-18 | 高岩 | Multicore optic cable with hollow provided air pipe |
| US6472614B1 (en) * | 2000-01-07 | 2002-10-29 | Coflexip | Dynamic umbilicals with internal steel rods |
| JP2001228377A (en) * | 2000-02-18 | 2001-08-24 | Furukawa Electric Co Ltd:The | Optical fiber cord intertwining type cable |
| JP2002303769A (en) * | 2001-04-09 | 2002-10-18 | Fujikura Ltd | Multi-fiber optical cable |
| JP2003107307A (en) * | 2001-09-27 | 2003-04-09 | Yazaki Corp | Tension member for optical fiber cable and optical fiber cable using the same |
| CN2509590Y (en) * | 2001-12-02 | 2002-09-04 | 江苏亨通光电股份有限公司 | Star-quad lead-in cable |
| CN101017232A (en) * | 2007-03-07 | 2007-08-15 | 苑宝义 | High voltage optical cable |
| CN201319088Y (en) * | 2008-10-06 | 2009-09-30 | 沈群华 | Layer stranded optical fiber ribbon cable with a plurality of stiffeners |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424825A (en) * | 2012-05-18 | 2013-12-04 | 河南科信电缆有限公司 | High-strength optical cable |
| CN103197394A (en) * | 2013-04-28 | 2013-07-10 | 吴江市胜信光电科技有限公司 | Layer-stranding optical cable with 1+4 structure |
| CN103197394B (en) * | 2013-04-28 | 2015-07-29 | 苏州胜信光电科技有限公司 | A kind of layer-stranding cable of 1+4 structure |
| CN112285854A (en) * | 2020-11-06 | 2021-01-29 | 四川天府江东科技有限公司 | Compound enhancement layer stranded optical cable |
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Application publication date: 20090311 |