CN109991709B - Optical cable suitable for air-blowing laying - Google Patents
Optical cable suitable for air-blowing laying Download PDFInfo
- Publication number
- CN109991709B CN109991709B CN201910249968.0A CN201910249968A CN109991709B CN 109991709 B CN109991709 B CN 109991709B CN 201910249968 A CN201910249968 A CN 201910249968A CN 109991709 B CN109991709 B CN 109991709B
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- CN
- China
- Prior art keywords
- nonmetal
- spokes
- yarns
- nonmetallic
- optical cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 30
- 238000007664 blowing Methods 0.000 title abstract description 16
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 55
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 35
- 239000013307 optical fiber Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 239000011295 pitch Substances 0.000 claims description 7
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920001903 high density polyethylene Polymers 0.000 claims description 4
- 239000004700 high-density polyethylene Substances 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 239000011152 fibreglass Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/566—Devices for opening or removing the mantle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses an optical cable suitable for air-blowing laying, which comprises a nonmetal reinforcing part, an optical fiber unit (3), a water blocking unit (4), nonmetal reinforcing yarns (5) and a sheath (7), wherein the nonmetal reinforcing part comprises a nonmetal central shaft (1) and nonmetal spokes (2), the surface of the nonmetal central shaft (1) is provided with a plurality of nonmetal spokes (2), the two nonmetal spokes (2) form a plurality of chambers, the optical fiber unit (3) and the water blocking unit (4) are arranged in the chambers, the nonmetal reinforcing yarns (5) are wound on the nonmetal spokes (2) along the circumferential direction, and the sheath (7) is arranged outside the nonmetal reinforcing yarns (5). The optical fiber cable has small outer diameter, high rigidity, tensile strength and compression resistance, and is suitable for air-blowing laying.
Description
Technical Field
The invention relates to the technical field of communication optical cables, in particular to an optical cable suitable for air-blowing laying.
Background
Along with the increasing popularity of optical cable air-blowing laying modes, various optical cable structures suitable for air blowing are emerging on the market, the existing air-blowing optical cable structures are mostly filled with fiber paste, the fiber paste on the optical fibers must be cleaned during construction connection, and then all-dry optical cable structures suitable for air-blowing laying are formed.
Disclosure of Invention
The invention aims to overcome the defects of the existing full-dry optical cable and provides an optical cable suitable for air-blowing laying.
The aim of the invention is achieved by the following technical scheme: the utility model provides an optical cable suitable for air-blowing lays, it includes nonmetal reinforcement, optical fiber unit, blocks water unit, nonmetal reinforcing yarn and sheath, nonmetal reinforcement includes nonmetal center pin and nonmetal spoke, the surface of nonmetal center pin is equipped with many nonmetal spokes, forms a plurality of cavities between two nonmetal spokes, optical fiber unit and block water unit set up in the cavity, nonmetal reinforcing yarn twines on nonmetal spoke along circumference, the sheath sets up outside nonmetal reinforcing yarn.
Specifically, the nonmetal reinforcing piece is a special-shaped glass fiber reinforced plastic rod.
Specifically, 1-6 chambers formed by the nonmetallic spokes are V-shaped or U-shaped.
Specifically, the optical fiber unit is an optical fiber, an optical fiber bundle or a tight-buffered optical fiber.
Specifically, the water blocking unit is water blocking yarn or water blocking powder.
Specifically, the nonmetal reinforcing yarns are water-blocking yarns, polyester yarns or aramid yarns, and are wound on nonmetal spokes at fixed pitches.
Specifically, the winding pitch of the nonmetal reinforcing yarns is 10-50mm.
Specifically, the cable also comprises a tearing rope, wherein the tearing rope is arranged between the nonmetal reinforcing yarns and the sheath and is arranged along the length direction of the optical cable.
Specifically, the sheath is made of high-density polyethylene or polyamide, and the thickness of the sheath is 0.15-0.3mm.
The invention has the following technical effects:
(1) The special-shaped glass fiber reinforced rod is used as a main component to provide enough tension and rigidity for the optical cable, so that the optical cable has no bending memory when being discharged;
(2) The optical fiber is arranged in the specific cavity, so that the optical cable is not damaged when being pressed, and the construction is convenient and quick;
(3) The nonmetal reinforcing yarns are wound on the special-shaped glass fiber reinforced rod, so that the optical fibers are limited and protected on one hand, special surface textures are formed on the jacket on the other hand, the optical cable is subjected to more airflow pushing area than before during air blowing, and the air blowing distance is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
In the figure: 1-nonmetallic central shaft, 2-nonmetallic spokes, 3-optical fiber units, 4-water blocking units, 5-nonmetallic reinforcing yarns, 6-tearing ropes and 7-sheaths.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, an optical cable suitable for air-blowing laying comprises a nonmetal reinforcing part, an optical fiber unit 3, a water blocking unit 4, nonmetal reinforcing yarns 5 and a sheath 7, wherein the nonmetal reinforcing part comprises a nonmetal central shaft 1 and nonmetal spokes 2, a plurality of nonmetal spokes 2 are arranged on the surface of the nonmetal central shaft 1, a plurality of chambers are formed between the two nonmetal spokes 2, the optical fiber unit 3 and the water blocking unit 4 are arranged in the chambers, the nonmetal reinforcing yarns 5 are wound on the nonmetal spokes 2 along the circumferential direction, and the sheath 7 is arranged outside the nonmetal reinforcing yarns 5.
Further, the nonmetal reinforcing member is a special-shaped glass fiber reinforced plastic rod, and provides enough tension and rigidity for the optical cable.
Furthermore, the nonmetal spokes 2 form 1-6 chambers which are V-shaped or U-shaped, and the chambers can play a role in protecting the optical cable from being damaged when the optical cable is pressed.
Further, the optical fiber unit 3 is an optical fiber, an optical fiber bundle or a tight-buffered optical fiber.
Further, the water blocking unit 4 is water blocking yarn or water blocking powder.
Further, the non-metal reinforcing yarns 5 are water-blocking yarns, polyester yarns or aramid yarns, and are wound on the non-metal spokes 2 at fixed pitches.
Furthermore, the winding pitch of the nonmetal reinforcing yarns 5 is 10-50mm, and special lines are formed on the surface of the sheath 7, so that the optical cable is subjected to more airflow pushing area than before during air blowing, and the air blowing performance is effectively improved.
Further, a tearing rope 6 is also included, and the tearing rope 6 is arranged between the nonmetal reinforcing yarns 5 and the sheath 7 along the length direction of the optical cable.
Further, the sheath 7 is made of high-density polyethylene or polyamide and has a thickness of 0.15-0.3mm, so that the whole structure of the optical cable is provided with enough rigidity.
The working process of the invention is as follows: when the nonmetallic reinforcing part is released, at least one optical fiber unit 3 and a water blocking unit 4 are sent into a cavity formed by nonmetallic spokes 2 through a guide needle tube by a special positioning device, the optical fiber unit 3 can be a common multimode or single-mode optical fiber or other special optical fibers, a layer of nonmetallic reinforcing yarns 5 are wound on the nonmetallic spokes 2 according to fixed pitches, a tearing rope 6 is pulled flatly, and finally a layer of sheath 7 is extruded on the outermost layer, wherein the sheath 7 is made of high-density polyethylene or polyamide.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or equivalent embodiments with equivalent variations can be made, without departing from the scope of the disclosed technology. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technology of the present invention fall within the protection scope of the present invention.
Claims (5)
1. An optical cable suitable for air-blown laying, characterized in that: it comprises a nonmetallic reinforcing part, an optical fiber unit (3), a water blocking unit (4), nonmetallic reinforcing yarns (5) and a sheath (7), wherein the nonmetallic reinforcing part comprises a nonmetallic central shaft (1) and nonmetallic spokes (2), the surface of the nonmetallic central shaft (1) is provided with a plurality of nonmetallic spokes (2), a plurality of chambers are formed between the two nonmetallic spokes (2), the optical fiber unit (3) and the water blocking unit (4) are arranged in the cavity, the nonmetal reinforcing yarns (5) are wound on the nonmetal spokes (2) along the circumferential direction, the sheath (7) is arranged outside the nonmetal reinforcing yarns (5) and further comprises tearing ropes (6), wherein the tearing ropes (6) are arranged between the nonmetal reinforcing yarns (5) and the sheath (7) and are arranged along the length direction of the optical cable;
The nonmetal reinforcing piece is a special-shaped glass fiber reinforced plastic rod;
the nonmetal reinforcing yarns (5) are water-blocking yarns, polyester yarns or aramid yarns, and are wound on the nonmetal spokes (2) at fixed pitches;
the winding pitch of the nonmetal reinforcing yarns (5) is 10-50mm;
the nonmetal reinforcing yarns (5) are wound on the special-shaped glass fiber reinforced rod, so that the sheath forms special surface grains.
2. An optical cable suitable for air blown laying according to claim 1, wherein: the nonmetal spokes (2) form 1-6 chambers which are V-shaped or U-shaped.
3. An optical cable suitable for air blown laying according to claim 1, wherein: the optical fiber unit (3) is an optical fiber, an optical fiber bundle or a tight-buffered optical fiber.
4. An optical cable suitable for air blown laying according to claim 1, wherein: the water blocking unit (4) is water blocking yarn or water blocking powder.
5. An optical cable suitable for air blown laying according to claim 1, wherein: the sheath (7) is made of high-density polyethylene or polyamide, and has a thickness of 0.15-0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249968.0A CN109991709B (en) | 2019-03-29 | 2019-03-29 | Optical cable suitable for air-blowing laying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910249968.0A CN109991709B (en) | 2019-03-29 | 2019-03-29 | Optical cable suitable for air-blowing laying |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109991709A CN109991709A (en) | 2019-07-09 |
| CN109991709B true CN109991709B (en) | 2024-06-11 |
Family
ID=67131886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910249968.0A Active CN109991709B (en) | 2019-03-29 | 2019-03-29 | Optical cable suitable for air-blowing laying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109991709B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136887A2 (en) * | 1983-10-05 | 1985-04-10 | International Standard Electric Corporation | Dielectric optical fibre cable |
| DE19540380A1 (en) * | 1995-10-30 | 1997-05-15 | Alcatel Kabel Ag | Optical fibre core with optical fibre in tube |
| KR20060081264A (en) * | 2005-01-07 | 2006-07-12 | 엘에스전선 주식회사 | Compact and lightweight pneumatic cable |
| CN201255781Y (en) * | 2008-09-09 | 2009-06-10 | 特恩驰(南京)光纤有限公司 | High optical fiber density fine cord suitable for blowing laid |
| CN201440181U (en) * | 2009-08-11 | 2010-04-21 | 深圳市特发信息光网科技股份有限公司 | Minitype air-blowing optical cable |
| CN102023357A (en) * | 2010-12-31 | 2011-04-20 | 江苏通鼎光电股份有限公司 | Full-dry high fiber count air-blowing micro-cable and optical fibre bundle processing method |
| CN102183830A (en) * | 2010-05-31 | 2011-09-14 | 四川汇源光通信有限公司 | Miniature twisted air-blowing optical cable with raised grain groove on surface and manufacture method thereof |
| CN203502638U (en) * | 2013-10-14 | 2014-03-26 | 深圳市特发信息股份有限公司 | Non metal skeleton-type optical fiber ribbon cable |
| CN203502637U (en) * | 2013-10-14 | 2014-03-26 | 深圳市特发信息股份有限公司 | Non metal skeleton-type loose fiber optical cable |
| CN106255910A (en) * | 2014-05-09 | 2016-12-21 | 株式会社藤仓 | Optical cable |
| CN209803414U (en) * | 2019-03-29 | 2019-12-17 | 四川汇源光通信有限公司 | Optical cable suitable for air-blowing laying |
-
2019
- 2019-03-29 CN CN201910249968.0A patent/CN109991709B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0136887A2 (en) * | 1983-10-05 | 1985-04-10 | International Standard Electric Corporation | Dielectric optical fibre cable |
| DE19540380A1 (en) * | 1995-10-30 | 1997-05-15 | Alcatel Kabel Ag | Optical fibre core with optical fibre in tube |
| KR20060081264A (en) * | 2005-01-07 | 2006-07-12 | 엘에스전선 주식회사 | Compact and lightweight pneumatic cable |
| CN201255781Y (en) * | 2008-09-09 | 2009-06-10 | 特恩驰(南京)光纤有限公司 | High optical fiber density fine cord suitable for blowing laid |
| CN201440181U (en) * | 2009-08-11 | 2010-04-21 | 深圳市特发信息光网科技股份有限公司 | Minitype air-blowing optical cable |
| CN102183830A (en) * | 2010-05-31 | 2011-09-14 | 四川汇源光通信有限公司 | Miniature twisted air-blowing optical cable with raised grain groove on surface and manufacture method thereof |
| WO2011150787A1 (en) * | 2010-05-31 | 2011-12-08 | 四川汇源光通信有限公司 | Optical cable structure for air blown installation and manufacture method thereof |
| CN102023357A (en) * | 2010-12-31 | 2011-04-20 | 江苏通鼎光电股份有限公司 | Full-dry high fiber count air-blowing micro-cable and optical fibre bundle processing method |
| CN203502638U (en) * | 2013-10-14 | 2014-03-26 | 深圳市特发信息股份有限公司 | Non metal skeleton-type optical fiber ribbon cable |
| CN203502637U (en) * | 2013-10-14 | 2014-03-26 | 深圳市特发信息股份有限公司 | Non metal skeleton-type loose fiber optical cable |
| CN106255910A (en) * | 2014-05-09 | 2016-12-21 | 株式会社藤仓 | Optical cable |
| CN209803414U (en) * | 2019-03-29 | 2019-12-17 | 四川汇源光通信有限公司 | Optical cable suitable for air-blowing laying |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109991709A (en) | 2019-07-09 |
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