CN201138383Y - 8 font style dry-type waterproof optic cable - Google Patents
8 font style dry-type waterproof optic cable Download PDFInfo
- Publication number
- CN201138383Y CN201138383Y CNU2007201581479U CN200720158147U CN201138383Y CN 201138383 Y CN201138383 Y CN 201138383Y CN U2007201581479 U CNU2007201581479 U CN U2007201581479U CN 200720158147 U CN200720158147 U CN 200720158147U CN 201138383 Y CN201138383 Y CN 201138383Y
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- CN
- China
- Prior art keywords
- cable core
- water blocking
- sleeve pipe
- reinforcing element
- dry type
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an optical cable, in particular to an optical cable used to provide tensile strength for optical fiber, which includes a cable core and an outer protective cover used to wrap the cable core; the cable core consists of a central reinforcing element and loose tubes twisted around the central reinforcing element; each loose tube is provided with optical fiber and optical fiber filling paste; dry water block yarn is arranged between the central reinforcing element and the loose tubes and between all the loose tubes; the dry water blocking yarn extends in parallel with the loose tubes and the both are twisted around the central reinforcing element. The optical cable is easy to be manufactured, has elegant appearance and more reasonable structure design, meets the requirement of the longitudinal water blocking of the optical cable, and thus prolonging the service life of the optical cable.
Description
Technical field
The utility model relates to a kind of optical cable, relates in particular to a kind of optical cable that is used to light transmitting fiber that tensile strength is provided.
Background technology
Employed optical fiber cable in the common optical fiber telecommunications line, generally comprise cable core and oversheath, cable core is made up of optical fiber, optical fiber filling paste, loose sleeve pipe, filled composite, center reinforcing element, presumable comprehensive sheath, and the cable core gap adopts the factice for filling compound to be full of to block water.This structure needs specialized equipment that ointment is carried out thermoplastic, filling because ointment is filled in process of production, the production cost height; And this ointment fill process contaminated environment that not only leaks easily also is difficult to reach the technical requirement of full filling; Surrounding enviroment are polluted in the ointment unfavorable installation that leaks simultaneously in the optical cable installation process; Normal use that water into influences optical cable reduces its mission life to cause optical cable to make moist in the optical cable use easily.This in addition structure is owing to be subjected to technology and cost impact; its center reinforcing element can not satisfy the independent built on stilts requirement of laying of optical cable; must lay the steel wire messenger wire in advance between communication line bar line is protected; and the sag that can not guarantee optical cable meets the requirement of the original sag of each loading zone messenger wire, increased the expense and the difficulty of construction of engineering.
The utility model content
The purpose of this utility model is to provide the communication that blocks water of a kind of figure of eight dry type to use outdoor optical cable, can effectively improve the water-resisting ability of optical cable, strengthen the resistance to tension of optical cable, eliminate optical cable pollution to environment in the production use simultaneously, improve the security and the serviceable life thereof of optical cable manufacturing, operation, reduce communications cost.
For achieving the above object, the utility model adopts following technical proposals: it comprises cable core and cable core is wrapped in interior oversheath, cable core is made up of center reinforcing element and the loose sleeve pipe that is stranded in around the reinforcing element of center, in the pine sleeve pipe optical fiber and optical fiber filling paste are set, between center reinforcing element and the loose sleeve pipe and between each loose sleeve pipe the dry type water blocking yarn is being set, the parallel extension is stranded in around the reinforcing element of center for dry type water blocking yarn and loose sleeve pipe.
The cable core top is set up in parallel steel wire and strengthens supporting member, and steel wire strengthens supporting member and links to each other with cable core by suspender belt, and steel wire strengthens supporting member and cable core is figure-8 structure, and both are by same oversheath parcel, and are into a single integrated structure.Adopt steel wire to strengthen the tensile strength that supporting member has improved optical cable greatly, the pole line messenger wire of alternative former aerial optical cable circuit, sag that not only can more effective adjusting circuit makes its requirement that better meets the original sag of each loading zone messenger wire, has also avoided the secondary construction to greatly reduce engineering cost.The top that steel wire strengthens supporting member and is listed in cable core is extruded oversheath simultaneously, not only is convenient to make, and economizes material, good looking appearance, the structure setting is more reasonable, and can make optical fiber in the built on stilts optical cable that lays avoid the effect of external force and tension force equally, keeps its excellent communications transmission performance.
Each cable core has 1-12 root pine sleeve pipe, is provided with 2-12 root optical fiber in the every loose sleeve pipe.Be provided with waterstop between cable core and the oversheath, waterstop adopts dual coating water blocking layer structure.Be provided with a comprehensive sheath between waterstop and the oversheath, comprehensive sheath adopts vertical two-sided aluminium-plastic tape of bag or the two-sided composite steel-plastic belt of vertical bag, can reach waterproof effect well like this.Cable core also comprises packing, and packing and loose sleeve pipe together are stranded in around the reinforcing element of center, when the sleeve pipe number more after a little while, can be used as replenishing of sleeve pipe, keep the rounding of cable core.
After the gap factice for filling compound of cable core changed water blocking yarn into, in case have water or moisture to enter optical cable, the gap in the cable core was blocked in the just suction immediately and self expands of dry type water blocking yarn, and blocking-up water or the vertical seepage flow of moisture satisfy the requirement that blocks water.Because water blocking yarn is embedded between the loose sleeve pipe, pricking yarn in the time of can avoiding stranding makes loose sleeve surface depression occur and harmful effect that optical fiber is produced, the stranding quality is further enhanced, production technology is relative with process simple, can reduce the expense expenditure of optical cable ointment pad device, reduce the production cost of optical cable, install and continue more succinct, quicker, as to have avoided ointment to leak and cause pollution.
The utility model is made simple, good looking appearance, and the structure setting is more reasonable, has realized the requirement that optical cable vertically blocks water, thereby has improved the serviceable life of optical cable.
Description of drawings
Below in conjunction with drawings and Examples structure of the present utility model is done explanation in further detail:
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of figure of eight dry type blocks water to communicate by letter and uses outdoor optical cable, comprise cable core 4, suspender belt 3, steel wire strengthens supporting member 1 three parts, cable core 4 is made up of center reinforcing element 8 and the loose sleeve pipe 10 and the packing 12 that are stranded in around the center reinforcing element 8, in the pine sleeve pipe 10 optical fiber 7 and optical fiber filling paste 9 are set, between center reinforcing element 8 and the loose sleeve pipe 10 and between each loose sleeve pipe dry type water blocking yarn 11 is being set, dry type water blocking yarn 11 and loose sleeve pipe 10 together parallel extension of stranding are stranded in around the center reinforcing element 8, its external diameter 2.1mm, the waterstop 6 that vertical simultaneously bag thickness is 0.25mm is formed the cable core layer of optical cable, the thick comprehensive sheath 5 of one deck 0.25mm is arranged between cable core 4 and the oversheath 2, comprehensive sheath 5 adopts vertical two-sided aluminium-plastic tape of bag or the two-sided composite steel-plastic belt of vertical bag, and two-sided composite steel-plastic belt need carry out embossing to be handled.
Dry type water blocking yarn 11 is stranded with loose sleeve pipe 10 parallel extensions in the stranding process, evenly is embedded in the space in 10 adjoiners outsides of center reinforcing element 8 appearances and Ge Song sleeve pipe; To be the steel wire of the 2.6mm oversheath 2 that strengthens supporting member 1 with the oversheath 2 of cable core and suspender belt 3 extrude diameter simultaneously is structure as a whole, and steel wire strengthens supporting member 1 and links to each other with cable core by suspender belt 3.
Claims (6)
1. font dry type water blocking optical cable, it comprises cable core and cable core is wrapped in interior oversheath, cable core is made up of center reinforcing element and the loose sleeve pipe that is stranded in around the reinforcing element of center, in the pine sleeve pipe optical fiber and optical fiber filling paste are set, it is characterized in that between center reinforcing element and the loose sleeve pipe and between each loose sleeve pipe the dry type water blocking yarn being set, the parallel extension is stranded in around the reinforcing element of center for dry type water blocking yarn and loose sleeve pipe.
2. 8 font dry type water blocking optical cables according to claim 1, it is characterized in that the cable core top is set up in parallel steel wire and strengthens supporting member, steel wire strengthens supporting member and links to each other with cable core by suspender belt, and steel wire strengthens supporting member and cable core is figure-8 structure, and both are by same oversheath parcel.
3. 8 font dry type water blocking optical cables according to claim 1 and 2 is characterized in that each cable core has 1-12 root pine sleeve pipe, is provided with 2-12 root optical fiber in the every loose sleeve pipe.
4. 8 font dry type water blocking optical cables according to claim 1 and 2 is characterized in that being provided with waterstop between cable core and the oversheath, and waterstop adopts dual coating water blocking layer structure.
5. 8 font dry type water blocking optical cables according to claim 4 is characterized in that being provided with between waterstop and the oversheath a comprehensive sheath, and comprehensive sheath adopts vertical two-sided aluminium-plastic tape of bag or the two-sided composite steel-plastic belt of vertical bag.
6. 8 font dry type water blocking optical cables according to claim 1 and 2 is characterized in that cable core also comprises packing, and packing and loose sleeve pipe together are stranded in around the reinforcing element of center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201581479U CN201138383Y (en) | 2007-11-30 | 2007-11-30 | 8 font style dry-type waterproof optic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201581479U CN201138383Y (en) | 2007-11-30 | 2007-11-30 | 8 font style dry-type waterproof optic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201138383Y true CN201138383Y (en) | 2008-10-22 |
Family
ID=40039067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201581479U Expired - Fee Related CN201138383Y (en) | 2007-11-30 | 2007-11-30 | 8 font style dry-type waterproof optic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201138383Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364596A (en) * | 2011-11-03 | 2012-02-29 | 成都亨通光通信有限公司 | Layer-stranded type single-sheath unarmored fully-dried type self-supporting composite cable |
| CN102364599A (en) * | 2011-11-03 | 2012-02-29 | 成都亨通光通信有限公司 | Central-tube type single-sheath unarmored fully-dried type composite cable |
| CN102394135A (en) * | 2011-11-03 | 2012-03-28 | 成都亨通光通信有限公司 | Stranded double-sheath armored full dry-type self-supporting composite cable |
| CN103353643A (en) * | 2013-06-13 | 2013-10-16 | 成都亨通光通信有限公司 | 8-shaped self-supporting multi-core optical cable |
| CN103513378A (en) * | 2013-10-15 | 2014-01-15 | 北京亨通斯博通讯科技有限公司 | Light semi dry double-8-shaped communication optical cable |
| CN103995330A (en) * | 2014-05-05 | 2014-08-20 | 浙江一舟电子科技股份有限公司 | Center-beam-tube full-dry-type indoor and outdoor universal cable |
| CN105589150A (en) * | 2015-12-22 | 2016-05-18 | 长飞光纤光缆股份有限公司 | Hybrid optical fiber with large fiber core number |
-
2007
- 2007-11-30 CN CNU2007201581479U patent/CN201138383Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364596A (en) * | 2011-11-03 | 2012-02-29 | 成都亨通光通信有限公司 | Layer-stranded type single-sheath unarmored fully-dried type self-supporting composite cable |
| CN102364599A (en) * | 2011-11-03 | 2012-02-29 | 成都亨通光通信有限公司 | Central-tube type single-sheath unarmored fully-dried type composite cable |
| CN102394135A (en) * | 2011-11-03 | 2012-03-28 | 成都亨通光通信有限公司 | Stranded double-sheath armored full dry-type self-supporting composite cable |
| CN103353643A (en) * | 2013-06-13 | 2013-10-16 | 成都亨通光通信有限公司 | 8-shaped self-supporting multi-core optical cable |
| CN103513378A (en) * | 2013-10-15 | 2014-01-15 | 北京亨通斯博通讯科技有限公司 | Light semi dry double-8-shaped communication optical cable |
| CN103995330A (en) * | 2014-05-05 | 2014-08-20 | 浙江一舟电子科技股份有限公司 | Center-beam-tube full-dry-type indoor and outdoor universal cable |
| CN105589150A (en) * | 2015-12-22 | 2016-05-18 | 长飞光纤光缆股份有限公司 | Hybrid optical fiber with large fiber core number |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |