CN101349789A - Center bundle tube-type sensing optical cable - Google Patents
Center bundle tube-type sensing optical cable Download PDFInfo
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- CN101349789A CN101349789A CNA2008101071009A CN200810107100A CN101349789A CN 101349789 A CN101349789 A CN 101349789A CN A2008101071009 A CNA2008101071009 A CN A2008101071009A CN 200810107100 A CN200810107100 A CN 200810107100A CN 101349789 A CN101349789 A CN 101349789A
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- sleeve pipe
- loose sleeve
- water
- central beam
- type sensing
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Abstract
The invention relates to an optical cable of central beam tube type, comprising a core and an outer guard layer covering the core, wherein the core comprises a loose tube and a plurality of colored optical fibers or tight buffered optical fibers which are provided in the loose tube and axially extended along the loose tube, a waterproof yarn is provided in the loose tube and axially extended along the loose tube. The invention uses the waterproof yarn to replace traditional fiber paste to provide uniform protection for water transfer, make optical fibers attain high sensing sensitivity and make the optical cable attain good beading property, therefore, the optical cable of central beam tube type has wide application.
Description
Technical field
The present invention relates to a kind of communications optical cable, particularly a kind of central beam tube type sensing optic cable.
Background technology
Existing central beam tube type optical cable, comprise cable core, be coated on the outer jacket of cable core periphery, cable core comprises loose sleeve pipe, be arranged on many colored optical fibers or tight tube fiber in the loose sleeve pipe, so this kind optical cable is called the central beam tube type optical cable, between loose sleeve pipe and optical fiber, be filled with fine cream playing the effect that waterproof blocks water, but with fine cream as material water-proof material, owing to the buffering of fine cream, make that the sensing sensitivity of this kind optical cable is not high, thereby influence communication quality.
Summary of the invention
The object of the invention just provides a kind of sensing sensitivity height, optical cable bending property sensing optic cable preferably.
In order to reach the foregoing invention purpose, technical scheme of the present invention is: a kind of central beam tube type sensing optic cable, comprise cable core, be coated on the outer jacket of described cable core periphery, described cable core comprises loose sleeve pipe, is arranged in the described loose sleeve pipe and along axially extended many colored optical fibers of described loose sleeve pipe or tight tube fiber, also is provided with in the described loose sleeve pipe along the axially extended water blocking yarn of described loose sleeve pipe.
Further, described water blocking yarn comprises the yarn body, is coated in the water-soluble high-molecular compound layer of described yarn body periphery.
Described water-soluble high-molecular compound layer material is absorption resin of sodium polyacrylate.
Described outer jacket comprises the vertical sheath that wraps in the fiberglass braided belt of blocking water of described loose sleeve pipe periphery, is wrapped in the described fiberglass braided belt periphery that blocks water, the flexibility of fiber woven belt itself owing to block water makes that the optical cable bendability of making is better.
The described fiberglass braided belt that blocks water is wrapped and be fixed on described loose sleeve pipe periphery by pricking the yarn spiral.
Because the utilization of technique scheme; the present invention has following advantage: replace traditional fine cream with water blocking yarn in the present invention pine sleeve pipe; with water blocking yarn as the material water-proof material in the optical cable; can provide uniform protection to the water migration; can make optical fiber have high sensing sensitivity again; the optical cable bendability of making is better, therefore, has than application prospects.
Description of drawings
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 is an A-A direction cut-open view in the accompanying drawing 1;
Accompanying drawing 3 is the viewgraph of cross-section of water blocking yarn of the present invention;
Wherein: 1, cable core; 11, loose sleeve pipe; 12, optical fiber; 13, water blocking yarn; 131, yarn body; 132, water-soluble high-molecular compound layer;
2, outer jacket; 21, the fiberglass braided belt that blocks water; 22, sheath;
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the invention is elaborated:
Sensing optic cable as depicted in figs. 1 and 2; comprise cable core 1; be coated on the outer jacket 2 of cable core 1 periphery; wherein; cable core 1 comprises PBT pine sleeve pipe 11; be positioned at loose sleeve pipe 11 along loose sleeve pipe 11 axially extended some colored optical fibers or tight tube fibers 12; in cable core 1, also be provided with one or more water blocking yarn 13; water blocking yarn 13 also is provided with along loose sleeve pipe 11 with extending axially; shown in Figure 3 is water blocking yarn 13; this water blocking yarn 13 comprises the yarn body 131 that is positioned at the center; be coated in the water-soluble high-molecular compound layer 132 of yarn body 131 peripheries; water blocking yarn 13 is to adopt the upright technology of doing to make; it is that water-soluble high-molecular compound (as absorption resin of sodium polyacrylate) evenly is coated in around the every one thread with super-strong moisture absorbing polymeric material; the yarn that obtains thus is soft but also super-strong moisture absorbing not only; therefore; this kind water blocking yarn is placed in the loose sleeve pipe; as the material water-proof material in the optical cable, can provide very uniform protection to the water migration, can make optical fiber have high sensing sensitivity again.
Described sheath 22 is mainly made by materials such as PVC or low-smoke halogen-free polyolefins.
Optical cable of the present invention can be used as nonmetal indoor and outdoor sensing optic cable, also can work as ordinary optical cable and use.Since water blocking yarn have block water, characteristic such as cleaning, replace fine cream in conventional cable pine sleeve pipe as material water-proof material with it, avoided the buffering of fine cream, the optical cable sensing sensitivity is improved greatly.The organdy braid over braid that blocks water equally also have block water, anti-opening and characteristic such as soft pliable song, replace aramid fiber in conventional cable as the anti-element of opening with it, and its price is than low many of aramid fiber.Therefore, sensing optic cable of the present invention has bigger popularizing application prospect.
Claims (5)
1, a kind of central beam tube type sensing optic cable, comprise cable core (1), be coated on the outer jacket (2) of described cable core (1) periphery, described cable core (1) comprises loose sleeve pipe (11), is arranged in the described loose sleeve pipe (11) and along axially extended many colored optical fibers of described loose sleeve pipe (11) or tight tube fiber (12), it is characterized in that: also be provided with along the axially extended water blocking yarn of described loose sleeve pipe (11) (13) in the described loose sleeve pipe (11).
2, central beam tube type sensing optic cable according to claim 1 is characterized in that: described water blocking yarn (13) comprises yarn body (131), is coated in the water-soluble high-molecular compound layer (132) of described yarn body (131) periphery.
3, central beam tube type sensing optic cable according to claim 2 is characterized in that: described water-soluble high-molecular compound layer (132) material is an absorption resin of sodium polyacrylate.
4, central beam tube type sensing optic cable according to claim 1 is characterized in that: described outer jacket (2) comprises indulges the fiberglass braided belt (21) that blocks water that wraps in described loose sleeve pipe (11) periphery, the sheath (22) that is wrapped in described fiberglass braided belt (21) periphery that blocks water.
5, central beam tube type sensing optic cable according to claim 4 is characterized in that: the described fiberglass braided belt (21) that blocks water is wrapped and be fixed on described loose sleeve pipe (11) periphery by pricking the yarn spiral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101071009A CN101349789B (en) | 2008-09-10 | 2008-09-10 | Center bundle tube-type sensing optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101071009A CN101349789B (en) | 2008-09-10 | 2008-09-10 | Center bundle tube-type sensing optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101349789A true CN101349789A (en) | 2009-01-21 |
| CN101349789B CN101349789B (en) | 2010-06-02 |
Family
ID=40268639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101071009A Active CN101349789B (en) | 2008-09-10 | 2008-09-10 | Center bundle tube-type sensing optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101349789B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399384A (en) * | 2013-08-07 | 2013-11-20 | 江苏中天科技股份有限公司 | Displacement sensing optical cable and manufacturing method thereof |
| CN105845243A (en) * | 2016-04-27 | 2016-08-10 | 江苏通鼎光电科技有限公司 | Waterproofing railway data signal cable |
| CN106094146A (en) * | 2016-08-30 | 2016-11-09 | 江苏中天科技股份有限公司 | Pre-buried stress temperature sensing optical cable in a kind of RTP |
| CN108897110A (en) * | 2018-08-31 | 2018-11-27 | 铜陵市铜都特种线缆有限公司 | A kind of tension access optical cable |
| WO2020063292A1 (en) * | 2018-09-26 | 2020-04-02 | 江苏亨通光电股份有限公司 | Ultra-fine anti-ant air-blowing optical cable and manufacturing method therefor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2452095Y (en) * | 2000-11-24 | 2001-10-03 | 沈阳天荣电缆材料有限公司 | Water resistant yarn for electric cable & optical cable |
| CN2775692Y (en) * | 2004-12-22 | 2006-04-26 | 江苏亨通光电股份有限公司 | Full dry central tube optical fiber optical cable |
| CN200950169Y (en) * | 2006-08-31 | 2007-09-19 | 江苏广新天虹通信集团有限公司 | Full-dry type loose-tube fiber unit |
| CN201057541Y (en) * | 2006-11-27 | 2008-05-07 | 江苏亨通光电股份有限公司 | Full dry type outdoor optical communication cable |
-
2008
- 2008-09-10 CN CN2008101071009A patent/CN101349789B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103399384A (en) * | 2013-08-07 | 2013-11-20 | 江苏中天科技股份有限公司 | Displacement sensing optical cable and manufacturing method thereof |
| CN105845243A (en) * | 2016-04-27 | 2016-08-10 | 江苏通鼎光电科技有限公司 | Waterproofing railway data signal cable |
| CN106094146A (en) * | 2016-08-30 | 2016-11-09 | 江苏中天科技股份有限公司 | Pre-buried stress temperature sensing optical cable in a kind of RTP |
| CN108897110A (en) * | 2018-08-31 | 2018-11-27 | 铜陵市铜都特种线缆有限公司 | A kind of tension access optical cable |
| WO2020063292A1 (en) * | 2018-09-26 | 2020-04-02 | 江苏亨通光电股份有限公司 | Ultra-fine anti-ant air-blowing optical cable and manufacturing method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101349789B (en) | 2010-06-02 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
Owner name: TONGDING INTERCONNECTION INFORMATION CO., LTD. Free format text: FORMER NAME: JIANGSU TONGDING OPTICAL + ELECTRIC TECHNOLOGY CO., LTD. |
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| CP03 | Change of name, title or address |
Address after: Wujiang Zhenze Town District of Suzhou City, Jiangsu province 215233 eight Xiaoping Avenue No. 8 Patentee after: The logical interconnected information limited company of ancient cooking vessel Address before: 215233 Wujiang City, Jiangsu Province eight Zhenze Town Development Zone Xiaoping Road No. 18 Patentee before: Jiangsu Tongding Optical & Electric Technology Co., Ltd. |