CN100418162C - Photoelectric composite railway digital signal cable - Google Patents
Photoelectric composite railway digital signal cable Download PDFInfo
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- CN100418162C CN100418162C CNB2006100391496A CN200610039149A CN100418162C CN 100418162 C CN100418162 C CN 100418162C CN B2006100391496 A CNB2006100391496 A CN B2006100391496A CN 200610039149 A CN200610039149 A CN 200610039149A CN 100418162 C CN100418162 C CN 100418162C
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- railway digital
- digital signal
- photoelectric composite
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Abstract
The present invention relates to a photoelectric composite railway digital signal cable which comprises a cable core, wherein the cable core comprises a plurality of groups of signal wires, at least a group of the signal wires is an inner shielding quad, and at least the other group of the signal wires is a loose tube optical fiber unit; water-blocking ointments are filled in gaps between the signal wires; an inner sheath layer, an outer water-blocking belt, an aluminum sheath layer, a metal armouring layer and an outer sheath layer are orderly coated at the outer side of the cable core; the outer water-blocking belt is made of a water soluble expansive material, and water-blocking hot melt glue is filled between the metal armouring layer and the aluminum sheath layer; the water-blocking ointments can block water and moisture, the arrangement of the outer water-blocking belt and the water-blocking hot melt glue can further prevent the cable core from being eroded by the water and the moisture, and thus, the present invention can guarantee the long-term safety and the reliability of railway digital communication and improve the service life of the cable. The photoelectric composite railway digital signal cable can be maintained without aeration in the process of practical use, and thus, the present invention greatly saves economic operation cost.
Description
Technical field
The present invention relates to a kind of photoelectric composite railway digital signal cable.
Background technology
In the prior art, photoelectric composite railway digital signal cable comprises cable core, have loose tube fiber unit and inner shield quad in the cable core, and in actual applications, this cable is subject to the erosion of water and moisture, and particularly hydrogen loss easily takes place when being subjected to the erosion of water and moisture the optical fiber in the fiber unit, influence the optical signal transmission quality, can cause fiber break when serious, cause the security reliability of railway digital communication relatively poor, and can shorten the useful life of cable.
Summary of the invention
The purpose of this invention is to provide a kind of photoelectric composite railway digital signal cable, it can stop water and moisture to enter in the cable core.
Technical scheme of the present invention is: a kind of photoelectric composite railway digital signal cable, comprise cable core, described cable core comprises many group holding wires, at least one group of described holding wire is the inner shield quad, and having other one group of holding wire at least is the loose tube fiber unit, be filled with greasy for preventing water in the space between described each holding wire, be surrounded by inner restrictive coating successively in the described cable core outside, outer waterstop, the aluminium sheath layer, the metal armouring layer, external sheath layer, described outer waterstop is made by water-soluble expanding material, is filled with the PUR that blocks water between described metal armouring layer and the aluminium sheath layer.
Described inner restrictive coating inboard is provided with interior waterstop, and described interior waterstop is made by water-soluble expanding material.
Described inner shield quad comprises four mutually stranded single lines, the longitudinal lapping plastic sheath layer on the metal screen layer in described four single lines outside, outer surface that extrusion molding is bonded in described metal screen layer, be filled with many water blocking yarns in the space between described each single line, described water blocking yarn is made by water-soluble expanding material.
Described loose tube fiber unit comprises loose jacket layer, is arranged at the multifiber of described loose jacket layer inboard, is filled with greasy for preventing water in the space between described each optical fiber.
The described PUR that blocks water is sealing adhesive mutually with the inner surface of metal armouring layer and the outer surface of aluminium sheath layer respectively.
Described external sheath layer extrusion molding is bonded on the outer surface of metal armouring layer.
The present invention compared with prior art has following advantage: fill greasy for preventing water between each holding wire in cable core, this greasy for preventing water can intercept water and moisture outside, and the setting of the outer waterstop and the PUR that blocks water, can prevent further that again sealing and moisture corrode cable core, to realize that this cable does not in use need daily maintenance by gas pressuriztion, save economic operation costs in a large number, thereby can ensure long-term safety, the reliability of railway digital communication, and the useful life that can improve cable.
Description of drawings
Accompanying drawing 1 is a main cutaway view of the present invention;
Accompanying drawing 2 is the main cutaway view Amplified image of loose tube fiber of the present invention unit;
Accompanying drawing 3 is the main cutaway view Amplified image of inner shield quad of the present invention;
Wherein: 1, external sheath layer; 2, metal armouring layer; 3, the PUR that blocks water; 4, aluminium sheath layer; 5, outer waterstop; 6, inner restrictive coating; 7, inner shield quad; 8, greasy for preventing water; 9, loose tube fiber unit; 10, interior waterstop; 11, optical fiber; 12, greasy for preventing water; 13, plastic sheath layer; 14, metal screen layer; 15, polyester is pricked yarn; 16, water blocking yarn; 17, single line; 18, loose jacket layer.
Embodiment
Shown in accompanying drawing 1-accompanying drawing 3, a kind of photoelectric composite railway digital signal cable, comprise cable core, described cable core comprises many group holding wires, at least one group of described holding wire is inner shield quad 7, and having other one group of holding wire at least is loose tube fiber unit 9, is filled with greasy for preventing water 8 in the space between described each holding wire.Be surrounded by inner restrictive coating 6, outer waterstop 5, aluminium sheath layer 4, metal armouring layer 2, external sheath layer 1 successively in the described cable core outside, described external sheath layer 1 is sealing adhesive mutually with the processing mode of metal armouring layer 2 by extrusion molding.Described outer waterstop 5 is made by water-soluble expanding material, and described inner restrictive coating 6 inboards are provided with interior waterstop 10, and described interior waterstop 10 is also made by water-soluble expanding material.Be filled with the PUR 3 that blocks water between described metal armouring layer 2 and the aluminium sheath layer 4, the described PUR 3 that blocks water is sealing adhesive mutually with the inner surface of metal armouring layer 2 and the outer surface of aluminium sheath layer 4 respectively.
Shown in accompanying drawing 3, described inner shield quad 7 comprises that four mutually stranded single lines 17, longitudinal lapping are bonded in the plastic sheath layer 13 on the outer surface of described metal screen layer 14 at metal screen layer 14, the extrusion molding in described four single line 17 outsides, each single line 17 stranded backs are pricked yarn 15 with polyester and are tightened, and the cross section of four single lines 17 after stranded is star.Be filled with many water blocking yarns 16 in the space between described each single line 17, described water blocking yarn 16 is made by water-soluble expanding material.
Shown in accompanying drawing 2, described loose tube fiber unit 9 comprises loose jacket layer 18, is arranged at the multifiber 11 of described loose jacket layer 18 inboards, is filled with greasy for preventing water 12 in the space between described each optical fiber 11.
Between aluminium sheath layer 4 and metal armouring layer 2, fill greasy for preventing water 3, can play horizontal resistance effect, the setting of outer waterstop 5, interior waterstop 10, greasy for preventing water 8 can effectively stop water and moisture to enter in the cable core again, to ensure the gas cut erosion of not making moist of loose tube fiber unit 9 and inner shield quad 7.And the setting of water blocking yarn 16; can prevent further that more inner shield quad 7 from making moist; the setting of greasy for preventing water 12 also can effectively stop water and moisture to enter in the loose jacket layer 18; with protection fiber unit 9; avoid fiber unit 9 to weather and hydrogen loss takes place; thereby guarantee the proper communication work of whole cable, and can prolong the useful life of cable.
Claims (6)
1. photoelectric composite railway digital signal cable, comprise cable core, described cable core comprises many group holding wires, at least one group of described holding wire is inner shield quad (7), and having other one group of holding wire at least is loose tube fiber unit (9), it is characterized in that: be filled with greasy for preventing water (8) in the space between described each holding wire, be surrounded by inner restrictive coating (6) successively in the described cable core outside, outer waterstop (5), aluminium sheath layer (4), metal armouring layer (2), external sheath layer (1), described outer waterstop (5) is made by water-soluble expanding material, is filled with the PUR that blocks water (3) between described metal armouring layer (2) and the aluminium sheath layer (4).
2. photoelectric composite railway digital signal cable according to claim 1 is characterized in that: described inner restrictive coating (6) inboard is provided with interior waterstop (10), and described interior waterstop (10) is made by water-soluble expanding material.
3. photoelectric composite railway digital signal cable according to claim 1, it is characterized in that: described inner shield quad (7) comprises four mutually stranded single lines (17), the longitudinal lapping plastic sheath layer (13) on the metal screen layer (14) in described four single lines (17) outside, outer surface that extrusion molding is bonded in described metal screen layer (14), be filled with many water blocking yarns (16) in the space between described each single line (17), described water blocking yarn (16) is made by water-soluble expanding material.
4. photoelectric composite railway digital signal cable according to claim 1, it is characterized in that: described loose tube fiber unit (9) comprises loose jacket layer (18), is arranged at the inboard multifiber (11) of described loose jacket layer (18), is filled with greasy for preventing water (12) in the space between described each optical fiber (11).
5. photoelectric composite railway digital signal cable according to claim 1 is characterized in that: the described PUR that blocks water (3) is sealing adhesive mutually with the inner surface of metal armouring layer (2) and the outer surface of aluminium sheath layer (4) respectively.
6. photoelectric composite railway digital signal cable according to claim 1 is characterized in that: described external sheath layer (1) extrusion molding is bonded on the outer surface of metal armouring layer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100391496A CN100418162C (en) | 2006-03-24 | 2006-03-24 | Photoelectric composite railway digital signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100391496A CN100418162C (en) | 2006-03-24 | 2006-03-24 | Photoelectric composite railway digital signal cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1825503A CN1825503A (en) | 2006-08-30 |
| CN100418162C true CN100418162C (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100391496A Active CN100418162C (en) | 2006-03-24 | 2006-03-24 | Photoelectric composite railway digital signal cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN100418162C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104637611A (en) * | 2013-11-14 | 2015-05-20 | 成都捷康特科技有限公司 | Reinforced photoelectric composite cable |
| CN104637576A (en) * | 2013-11-14 | 2015-05-20 | 成都捷康特科技有限公司 | Photoelectric composite cable |
| CN104637591A (en) * | 2013-11-14 | 2015-05-20 | 成都捷康特科技有限公司 | Reinforced photoelectric composite cable with high shielding performance |
| CN104867571A (en) * | 2015-05-12 | 2015-08-26 | 江苏亨通线缆科技有限公司 | Data cable and power cable composite optical fiber hybrid cable used for track traffic system |
| CN107833692A (en) * | 2017-11-10 | 2018-03-23 | 江苏凯达电缆有限公司 | The crosslinked polyetylene insulated medium-pressure power cable of high security Bimetallic shielding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105513A (en) * | 1986-08-07 | 1988-02-17 | 电话电报有限公司 | Optical cable |
| CN2424982Y (en) * | 2000-04-28 | 2001-03-28 | 天水铁路电缆工厂 | Railway signal photoelectric integrated cable |
| CN2562313Y (en) * | 2002-06-14 | 2003-07-23 | 宝胜科技创新股份有限公司 | Waterproof cable for railway digital signals |
-
2006
- 2006-03-24 CN CNB2006100391496A patent/CN100418162C/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87105513A (en) * | 1986-08-07 | 1988-02-17 | 电话电报有限公司 | Optical cable |
| CN2424982Y (en) * | 2000-04-28 | 2001-03-28 | 天水铁路电缆工厂 | Railway signal photoelectric integrated cable |
| CN2562313Y (en) * | 2002-06-14 | 2003-07-23 | 宝胜科技创新股份有限公司 | Waterproof cable for railway digital signals |
Non-Patent Citations (2)
| Title |
|---|
| 热熔胶在电缆和光缆中的应用. 张彰.现代有线传输，第1997.2期. 1997 |
| 热熔胶在电缆和光缆中的应用. 张彰.现代有线传输，第1997.2期. 1997 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1825503A (en) | 2006-08-30 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: WUJIANG SHENGXIN ELECTRIC CABLE CO., LTD. Free format text: FORMER OWNER: TONGDING GROUP CO., LTD. Effective date: 20080201 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20080201 Address after: 88 Xiaoping Road, eight Economic Development Zone, Jiangsu, Wujiang Province, China: 215233 Applicant after: Wujiang Shengxin Electric Cable Co., Ltd. Address before: 88 Xiaoping Road, eight Economic Development Zone, Jiangsu, Wujiang Province, China: 215233 Applicant before: Tongding Group Co., Ltd. |
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Owner name: JIANGSU TONGDING PHOTOELECTRIC CO., LTD. Free format text: FORMER NAME OR ADDRESS: WUJIANG SHENGXIN ELECTRIC CABLE CO., LTD. |
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Address after: Wujiang City, Jiangsu Province, Zhenze Town Economic Development Zone, eight Xiaoping Avenue No. 8 Patentee after: Jiangsu Tongding Optical & Electric Technology Co., Ltd. Address before: No. 88 Xiaoping Road, eight Economic Development Zone, Jiangsu, Wujiang Patentee before: Wujiang Shengxin Electric Cable Co., Ltd. |
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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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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 Economic Development Zone No. 8 Xiaoping Avenue Patentee before: Jiangsu Tongding Optical & Electric Technology Co., Ltd. |