CN211528787U - High-fiber-density friction-resistant pipeline optical cable - Google Patents
High-fiber-density friction-resistant pipeline optical cable Download PDFInfo
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- CN211528787U CN211528787U CN202020428218.8U CN202020428218U CN211528787U CN 211528787 U CN211528787 U CN 211528787U CN 202020428218 U CN202020428218 U CN 202020428218U CN 211528787 U CN211528787 U CN 211528787U
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Abstract
The utility model discloses a high fine density antifriction pipeline optical cable, include: the metal reinforcing piece, the inner layer of the stranded unit and the outer layer of the stranded unit; the inner layer of the twisted unit comprises 9 loose tubes, and the outer layer of the twisted unit comprises 15 loose tubes; a reinforcement cushion layer is arranged outside the metal reinforcement, and the metal reinforcement and 9 loose tubes in the inner layer of the twisted unit are twisted together in an SZ twisting mode to form an inner layer cable core; the inner-layer cable core is used as a reinforcing piece and is stranded together with 15 loose tubes in the outer layer of the stranding unit in an SZ stranding mode to form a double-layer stranded cable core; the outer layer of the double-layer stranded cable core is wrapped with a stainless steel band, the stainless steel band is wrapped with a PE sheath, and the PE sheath is wrapped with a nylon outer sheath. The small-diameter optical fiber is adopted to replace the traditional optical fiber, the outer diameter of the optical fiber is reduced to 200 μm from the traditional 245 μm, the outer diameter of the coating layer of the optical fiber is reduced, and the outer diameter of the optical fiber is reduced by 20%; as the outer diameter of the cable decreases, the fiber loose tube size also decreases.
Description
Technical Field
The utility model belongs to the optical cable field of making, concretely relates to high fine density antifriction pipe optical cable.
Background
With the increasing shortage of urban pipeline resources, the optical cable with high fiber density and large core number also becomes a development trend in recent years, and in addition, more optical cables can be put into the pipeline only by further reducing the friction force of the optical cable in the pipeline, so that the construction is more convenient. However, most of the existing optical cables are of conventional common structures, and have no advantage in the aspect of optical fiber density, and the optical cable sheath usually adopts a conventional PE sheath, so that the friction force on the surface of the optical cable is relatively large. Therefore, there is a need to develop an optical cable with high fiber density and low surface friction to meet the requirements of optical cable construction in the urban pipeline resources.
Disclosure of Invention
An object of the utility model is to provide a high fine density antifriction pipeline optical cable to among the solution prior art, ordinary optical cable surface friction is big, optical fiber density is little, leads to the problem that can not put into more optical cables in the pipeline.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high fiber density, friction resistant duct fiber optic cable comprising: the metal reinforcing piece, the inner layer of the stranded unit and the outer layer of the stranded unit; the inner layer of the twisted unit comprises 9 loose tubes, and the outer layer of the twisted unit comprises 15 loose tubes;
a reinforcement cushion layer is arranged outside the metal reinforcement, and the metal reinforcement and 9 loose tubes in the inner layer of the twisted unit are twisted together in an SZ twisting mode to form an inner layer cable core;
the inner-layer cable core is used as a reinforcing piece and is stranded together with 15 loose tubes in the outer layer of the stranding unit in an SZ stranding mode to form a double-layer stranded cable core;
the outer layer of the double-layer stranded cable core is wrapped with a stainless steel band, the stainless steel band is wrapped with a PE sheath, and the PE sheath is wrapped with a nylon outer sheath.
Further, the thickness of the PE sheath is 1.5 mm-1.6 mm.
Further, the thickness of the nylon outer sheath is 0.4 mm-0.5 mm.
Furthermore, 12 small-diameter optical fibers with the diameter of 200 mu m are arranged in each loose tube.
Furthermore, the diameter of the loose tube is 1.55 mm-1.65 mm.
Further, three of the 15 loose tubes on the outer layer of the twisted unit are marked with tube color bars.
The utility model has the advantages as follows:
1. the utility model discloses high fine density antifriction pipeline optical cable, include: the metal reinforcing piece, the inner layer of the stranded unit and the outer layer of the stranded unit; the inner layer of the twisted unit comprises 9 loose tubes, and the outer layer of the twisted unit comprises 15 loose tubes; a reinforcement cushion layer is arranged outside the metal reinforcement, and the metal reinforcement and 9 loose tubes in the inner layer of the twisted unit are twisted together in an SZ twisting mode to form an inner layer cable core; the inner-layer cable core is used as a reinforcing piece and is stranded together with 15 loose tubes in the outer layer of the stranding unit in an SZ stranding mode to form a double-layer stranded cable core; the outer layer of the double-layer stranded cable core is wrapped with a stainless steel band, the stainless steel band is wrapped with a PE sheath, and the PE sheath is wrapped with a nylon outer sheath. The optical fiber in the optical cable adopts the thin-diameter optical fiber to replace the traditional optical fiber, the outer diameter of the optical fiber is reduced to 200 mu m from the traditional 245 mu m, and on the premise of ensuring that the size of the bare optical fiber is not changed, the outer diameter of the optical fiber coating layer is reduced, and the outer diameter of the optical fiber is reduced by 20%; as the outer diameter of the cable decreases, the fiber loose tube size also decreases.
2. The utility model discloses the antifriction pipeline optical cable of high fiber density adopts the structure of double-layer stranded cable core, and the reinforcement size of layer-stranded optical cable and the external diameter of optical cable all reduce; the double-layer stranded structure further improves the optical fiber density in the optical cable, the number of optical fibers in unit area is large, and the shortage of pipeline resources is effectively relieved.
3. The utility model discloses high fiber density antifriction pipeline optical cable, the two sheath structures of PE + nylon are adopted in the optic fibre coating, have guaranteed that the coefficient of friction of optical cable surface is less, have further reduced the frictional force of optical cable in the pipeline.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a high-fiber-density friction-resistant pipeline optical cable according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating a comparison between the optical fiber structure of the embodiment of the present invention and the size of the existing optical cable;
wherein: the optical fiber cable comprises, by weight, 1-sleeve color stripes, 2-metal reinforcements, 3-reinforcement cushion layers, 4-loose sleeves, 5-small-diameter optical fibers, 6-stranded unit inner layers, 7-stranded unit outer layers, 8-stainless steel bands, 9-PE sheaths, 10-nylon outer sheaths, 11-bare fibers and 12-bare fiber coating layers.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention.
As shown in fig. 1, a high fiber density friction-resistant optical conduit cable includes: a bare fiber 11 and a bare fiber coating layer 12;
the bare optical fiber includes: a metal reinforcement 2, a strand inner layer 6 and a strand outer layer 7; the inner strand unit layer 6 comprises 9 loose tubes 4, and the outer strand unit layer 7 comprises 15 loose tubes 4; a reinforcement cushion layer 3 is arranged outside the metal reinforcement 2, and the metal reinforcement 2 and 9 loose tubes 4 in an inner layer 6 of a twisting unit are twisted together in an SZ twisting mode to form an inner layer cable core; the inner-layer cable core is used as a reinforcing piece and is stranded together with 15 loose tubes 4 in the outer layer 7 of the stranding unit in an SZ stranding mode to form a double-layer stranded cable core;
the bare fiber coating layer 12 includes: the stainless steel belt 8 wraps the outer layer of the double-layer stranded cable core, a PE sheath 9 wraps the stainless steel belt 8, and a nylon outer sheath 10 wraps the PE sheath 9.
The utility model discloses high fiber density antifriction pipeline optical cable is double-deck hank structure, for 1+9+15 structure, contains 9 loose tubes in the transposition unit inlayer 6, contains 15 loose tubes in the outer 7 of transposition unit, because standard regulation chromatogram is 12 colours, consequently in order to distinguish 15 sleeve pipes in the outer 7 of transposition unit, has used sleeve pipe colour bar 1 to carry out the mark on 3 sleeve pipes.
The thickness of the PE sheath 9 is 1.5 mm-1.6 mm, and the thickness of the nylon outer sheath 10 is 0.4 mm-0.5 mm. Each loose tube 4 is internally provided with 12 200 mu m thin-diameter optical fibers 5, the size of the optical cable loose tube 4 is 1.6mm (tolerance +/-0.05 mm), and the total core number of the optical cable is 288 cores.
As shown in fig. 2, a schematic diagram of the comparison between the optical fiber structure of the embodiment of the present invention and the existing optical cable in size; the left side of the figure is a conventional 245 μm optical fiber, and the right side is a 200 μm optical fiber according to an embodiment of the present invention. It can be seen that both the optical fibers are composed of the bare fiber 11 and the bare fiber coating layer 12, wherein the size of the bare fiber 11 is 125 μm, except for the difference in the size of the bare fiber coating layer 12. By matching with the tradition 288Core fiber's contrast, the utility model discloses the fiber dimension of high fiber density antifriction pipe optical cable has reduced 20%, and loose tube size has reduced 15%, and the external diameter of finished product optical cable reduces 15%. And the density of optical fibers in the optical cable is 1.65 cores/mm2Increase to 2.17 cores/mm2The fiber density increased by 30%.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.
Claims (6)
1. A high fiber density friction resistant duct cable comprising: the metal reinforcing piece (2), the inner layer (6) of the stranded unit and the outer layer (7) of the stranded unit; the inner layer (6) of twisted units comprises 9 loose tubes (4) and the outer layer (7) of twisted units comprises 15 loose tubes (4);
a reinforcement cushion layer (3) is arranged outside the metal reinforcement (2), and the metal reinforcement (2) and 9 loose tubes (4) in the inner layer (6) of the twisting unit are twisted together in an SZ twisting mode to form an inner layer cable core;
the inner-layer cable core is used as a reinforcing piece and is stranded together with 15 loose tubes (4) in the outer layer (7) of the stranding unit in an SZ stranding mode to form a double-layer stranded cable core;
the outer layer of the double-layer stranded cable core is wrapped with a stainless steel belt (8), the stainless steel belt (8) is wrapped with a PE sheath (9), and the PE sheath (9) is wrapped with a nylon outer sheath (10).
2. A high fiber density friction resistant duct cable according to claim 1, wherein the thickness of the PE jacket (9) is 1.5mm to 1.6 mm.
3. A high fiber density friction resistant duct cable according to claim 1, wherein the nylon outer jacket (10) has a thickness of 0.4mm to 0.5 mm.
4. A high fiber density friction-resistant optical conduit cable as claimed in claim 1, wherein 12 200 μm small-diameter optical fibers (5) are provided in each of said loose tubes (4).
5. A high fiber density friction resistant duct cable according to claim 1, wherein the loose tube (4) has a diameter size of 1.55mm to 1.65 mm.
6. A high fiber density friction resistant duct cable according to claim 1, wherein three of the 15 loose tubes (4) of the twisted unit outer layer (7) are marked with tube color bars (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020428218.8U CN211528787U (en) | 2020-03-27 | 2020-03-27 | High-fiber-density friction-resistant pipeline optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020428218.8U CN211528787U (en) | 2020-03-27 | 2020-03-27 | High-fiber-density friction-resistant pipeline optical cable |
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| Publication Number | Publication Date |
|---|---|
| CN211528787U true CN211528787U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020428218.8U Expired - Fee Related CN211528787U (en) | 2020-03-27 | 2020-03-27 | High-fiber-density friction-resistant pipeline optical cable |
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| CN (1) | CN211528787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022236871A1 (en) * | 2021-05-11 | 2022-11-17 | 浙江东通光网物联科技有限公司 | Ultra-large core-count optical cable for 5g |
-
2020
- 2020-03-27 CN CN202020428218.8U patent/CN211528787U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022236871A1 (en) * | 2021-05-11 | 2022-11-17 | 浙江东通光网物联科技有限公司 | Ultra-large core-count optical cable for 5g |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200918 Termination date: 20210327 |
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| CF01 | Termination of patent right due to non-payment of annual fee |