CN201936041U - Flexible totally-dry slotted core cable - Google Patents
Flexible totally-dry slotted core cable Download PDFInfo
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- CN201936041U CN201936041U CN2010205954583U CN201020595458U CN201936041U CN 201936041 U CN201936041 U CN 201936041U CN 2010205954583 U CN2010205954583 U CN 2010205954583U CN 201020595458 U CN201020595458 U CN 201020595458U CN 201936041 U CN201936041 U CN 201936041U
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- core cable
- slotted core
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Abstract
The utility model discloses a flexible totally-dry slotted core cable, which solves the imperfect performances of the prior slotted core cable such as poor flexibility, difficulty in bend, and big difficulty in laying. The flexible totally-dry slotted core cable comprises a strip frame, a frame slot is formed on the strip frame and stretches in the length direction, and a separate optical fiber or a fiber ribbon is placed in the frame slot. The flexible totally-dry slotted core cable is characterized in that a polybutylene terephthalate center reinforcement is arranged in the center of the strip frame, the strip frame and the center reinforcement adopt different materials, the strip frame is covered with a waterproof layer, an aluminum composite layer and a polyethylene sheath in sequence from inside to outside, and a tear rope is distributed between the waterproof layer and the aluminum composite layer. Compared with the prior art, the flexible totally-dry slotted core cable has better flexibility as well as higher strength, and meanwhile, the flexible totally-dry slotted core cable has the advantages of light quality, cleanness, simplicity in removing and welding, convenience in operation, low transportation and construction cost, and the like.
Description
Technical field
The utility model relates to a kind of communications optical cable, is specifically related to field of signal transmissions, simultaneously, as a kind of be the toughness dry type slotted core cable of bearing structure with the skeleton, also can be used for other field.
Background technology
Since twentieth century initial stage eighties optical fiber enters practicality, successively entered in phone, data and the CATV (cable television) industry.Particularly recent years, the information industry of countries in the world is just developing with unprecedented scale and speed, and wherein Internet service and the Development of E-business of transmitting with data mode is particularly outstanding.In order to adapt to so huge growth scale, existing network, particularly fiber cable network be the expansion capacity accordingly, sets up not only unblocked but also safe and reliable light net.
Setting up jumbo smooth host wants and can realize with several means once: 1. increase fiber number; 2. improve the transfer rate on the every optical fiber; 3. adopt wavelength-division multiplex, and increase wavelength number on the every optical fiber by reducing the wavelength interval; 4. open up new service band and increase wavelength coverage on the every optical fiber.
In the face of various means, but favored at most because of receiving optical fiber number in existing optical cable kind at the hardware aspect slotted core cable, the optical cable of dry type structure is easy to separate simultaneously, for fibre junction provides great convenience, in distributory network and Access Network, obtaining application widely under the historical background of " Internet of Things " especially.But, slotted core cable skeleton grooves intensity height, the core number causes optic cable diameter bigger more greatly, this has reduced the pliability of optical cable to a certain extent, prior art particularly, as China's Granted publication number is that the utility model patent of CN 2486980Y adopts wire rope or the fiberglass reinforcement central reinforce member as slotted core cable, and this greatly reduces the flexible of slotted core cable especially, has therefore increased the difficulty of construction and the construction cost of optical cable.The method that also has employing to cut an otch at a certain distance in the prior art on the internal-rib frame reduces the formed rigidity of rib.This measure is calculated to reach and is improved the flexible purpose of optical cable, can make the ratio of rigidity of optical cable originally reduce 30% as existing this method of report, but this method also makes the tensile property of optical cable reduce significantly simultaneously.
The utility model content
The technical assignment of the technical problems to be solved in the utility model and proposition be overcome the pliability of existing slotted core cable poor, be difficult to bending, lay the big performance deficiency of difficulty, provide a kind of and can improve the toughness dry type slotted core cable that the optical cable pliability can not sacrificed optical cable intensity again.
For this reason, the utility model is by the following technical solutions: a kind of toughness dry type slotted core cable, comprise the bar shaped skeleton, offer the skeleton grooves that extends along its length direction on this bar shaped skeleton, place individual fibers or fibre ribbon in the described skeleton grooves, it is characterized in that: the center of described bar shaped skeleton is provided with the polybutylene terephthalate central reinforce member, described bar shaped skeleton is different with the material of central reinforce member, described bar shaped skeleton is coated with water blocking layer outward from inside to outside, plastic-aluminum combined layer, pe sheath also distributes between described water blocking layer and plastic-aluminum combined layer and tears rope.
As the optimization technique measure, described skeleton grooves shape in the shape of a spiral distributes or the SZ type.
As the optimization technique measure, described skeleton grooves is the 3-12 bar.
As the optimization technique measure, the inboard of described water blocking layer is around pricking a bundle yarn that is positioned at outside the described skeleton grooves.
As the optimization technique measure, be printed on the rib mark on the described bar shaped skeleton.
Optical cable of the present utility model has the characteristics of higher intensity again with respect to the existing toughness preferably of prior art, plurality of advantages such as also possessing light weight simultaneously, clean, be easy to peel off welding, easy to operate, transportation and construction cost are low.Central reinforce member can better be bonding with skeleton, and the material transparency is good, toughness is strong, can better bring into play the succinct clean advantage of slotted core cable dry type, and reduced optical cable weight, dwindled bending radius, overcome slotted core cable to a certain extent, laid difficulty and cost thereby reduced because of skeleton and the big difficult crooked shortcoming of central reinforce member hardness.
Description of drawings
Fig. 1 is a kind of schematic cross-section with bar shaped skeleton of four skeleton grooves of the present utility model.
Fig. 2 is a kind of schematic cross-section with bar shaped skeleton of seven skeleton grooves of the present utility model.
Fig. 3 has the schematic cross-section of the optical cable that the bar shaped skeleton of four skeleton grooves makes for a kind of usefulness of the present utility model.
Fig. 4 has the schematic cross-section of the optical cable that the bar shaped skeleton of five skeleton grooves makes for a kind of usefulness of the present utility model.
Fig. 5 has the schematic cross-section of the optical cable that the bar shaped skeleton of six skeleton grooves makes for a kind of usefulness of the present utility model.
Number in the figure explanation: 1-central reinforce member; 2-bar shaped skeleton; 3-rib mark; The 4-skeleton grooves; 5-individual fibers or fibre ribbon; The 6-water blocking layer; 7-tears rope; The plastic-aluminum combined layer of 8-, the 9-pe sheath.
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
Toughness dry type slotted core cable shown in Fig. 3-5, comprise that bar shaped skeleton 2(also can be referring to Fig. 1-2), offer the skeleton grooves 4 that extends along its length direction on this bar shaped skeleton 2, place individual fibers or fibre ribbon 5 in the skeleton grooves 4, the center of bar shaped skeleton 2 is provided with polybutylene terephthalate central reinforce member 1, the material different (material of bar shaped skeleton 2 is tygon normally) of bar shaped skeleton 2 and central reinforce member 1, the bar shaped skeleton 2 outer water blocking layers 6 that are coated with from inside to outside, plastic-aluminum combined layer 8, pe sheath 9 also distributes between water blocking layer 6 and plastic-aluminum combined layer 8 and tears rope 7.Concrete: skeleton grooves 4 shape in the shape of a spiral distributes or the SZ type; Skeleton grooves 4 is 3-12 bar (being respectively four, seven, four, five, six as the skeleton grooves among Fig. 1-5); The inboard of water blocking layer 6 forms the bundle layer around pricking a bundle yarn that is positioned at outside the skeleton grooves; Be printed on rib mark 3 on the bar shaped skeleton 2.
The utility model is set about from improving central reinforce member, utilize polybutylene terephthalate to have advantages such as high-fire resistance, high tenacity, fatigue durability, self-lubricating, low-friction coefficient, good weatherability, design and a kind ofly can improve the novel optical cable that the optical cable pliability can not sacrificed optical cable intensity again through modification.The utility model is by introducing the good modification polybutylene terephthalate of this light weight, intensity height, pliability as central reinforce member, adopt dry construction to make optical cable simultaneously, thereby the characteristics that the slotted core cable fiber number is big, density of optic fibre is high that both keep have been reached, also make simultaneously to possess dry type by optical cable to be easy to peel off the bending radius that allows well with welding, pliability little, be convenient to advantages such as construction.
Below be the process that the skeleton optical cable is made in example explanation with bar shaped skeleton with four skeleton grooves shown in Figure 1 and 6 core fibre bands, in this example, the width of skeleton grooves is 2.2mm.
The laying method of optical fiber or fibre ribbon is as follows: as shown in Figure 1, there is being three ribs mark to be used for relative position on the mark skeleton xsect on the cross section of bar shaped skeleton, if during in the face of the optical cable end face, distinguish two bar rib marks district by wall scroll rib mark and be clockwise direction (determining this direction) with the short circular arc distance that wall scroll rib mark is distinguished between two bar rib marks district, then this end face is defined as the A end of optical cable, and the other end is the B end.According to this regulation, end face shown in Figure 1 is the A end of optical cable.Article three, the groove in the middle of the rib mark is first groove, adjacent slot in the clockwise direction is second groove, be third and fourth groove by that analogy ... when total groove number surpasses six (not containing six), for the ease of the position of identification slot, then at the periodic rib mark (as shown in Figure 2) that adds every between the 5th, six grooves.
After determining the A end of skeleton grooves, skeleton grooves inner fiber band also should be the A end, fibre ribbon from top to bottom, putting in order from left to right (if fibre ribbon chromatogram, then preferentially select for use) as shown in the table by order from top to bottom.
Next be the stranding operation, the stranding operation adopts conventional methods, but factice for filling not, making optical cable is dry type, and skeleton grooves is outer pricks yarn around pricking one, and wrapped again water blocking layer 5 can play the effect that blocks water; Carry out the pe sheath operation then, the sheath operation also adopts conventional methods, but sheath operation factice for filling not places and tears 6 one in rope.Finish after the sheath operation and promptly obtain the described optical cable of the utility model.
The present embodiment cable configuration is the dry type structure, is convenient to optical cable and tears back optical fiber continued access, signal is counted optical cable from distributory network with less core cause the road network.
Need to prove: above embodiment is used for the utility model is described, should not regard as qualification of the present utility model, as long as in usable range of the present utility model, all will drop in the scope of the utility model claims variation, the modification of the above embodiment.
Claims (5)
1. toughness dry type slotted core cable, comprise bar shaped skeleton (2), offer the skeleton grooves (4) that extends along its length direction on this bar shaped skeleton (2), place individual fibers or fibre ribbon (5) in the described skeleton grooves (4), it is characterized in that: the center of described bar shaped skeleton (2) is provided with polybutylene terephthalate central reinforce member (1), described bar shaped skeleton (2) is different with the material of central reinforce member (1), the outer water blocking layer (6) that is coated with from inside to outside of described bar shaped skeleton (2), plastic-aluminum combined layer (8), pe sheath (9) also distributes between described water blocking layer (6) and plastic-aluminum combined layer (8) and tears rope (7).
2. a kind of toughness dry type slotted core cable according to claim 1 is characterized in that described skeleton grooves (4) shape distribution or SZ type in the shape of a spiral.
3. a kind of toughness dry type slotted core cable according to claim 1 and 2 is characterized in that described skeleton grooves (4) is the 3-12 bar.
4. a kind of toughness dry type slotted core cable according to claim 1, the inboard that it is characterized in that described water blocking layer (6) is around pricking a bundle yarn that is positioned at outside the described skeleton grooves.
5. a kind of toughness dry type slotted core cable according to claim 1 is characterized in that being printed on the described bar shaped skeleton (2) rib mark (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205954583U CN201936041U (en) | 2010-11-08 | 2010-11-08 | Flexible totally-dry slotted core cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205954583U CN201936041U (en) | 2010-11-08 | 2010-11-08 | Flexible totally-dry slotted core cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201936041U true CN201936041U (en) | 2011-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205954583U Expired - Lifetime CN201936041U (en) | 2010-11-08 | 2010-11-08 | Flexible totally-dry slotted core cable |
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| Country | Link |
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| CN (1) | CN201936041U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590968A (en) * | 2012-04-07 | 2012-07-18 | 常熟市谷雷特机械产品设计有限公司 | Skeleton type cable |
| CN102610313A (en) * | 2012-04-07 | 2012-07-25 | 常熟市谷雷特机械产品设计有限公司 | Easily-distinguished framework-type cable |
| CN103064159A (en) * | 2011-10-21 | 2013-04-24 | 住友电气工业株式会社 | Multi-core optical cable |
| CN103149655A (en) * | 2012-04-07 | 2013-06-12 | 沈群华 | Skeleton-type cable |
| CN104330863A (en) * | 2014-11-27 | 2015-02-04 | 北京亨通斯博通讯科技有限公司 | Optical cable for rail transit |
| CN104849824A (en) * | 2015-06-15 | 2015-08-19 | 长飞光纤光缆股份有限公司 | Full-dry nonmetal self-supporting skeleton-type optical cable |
| CN105759383A (en) * | 2016-04-15 | 2016-07-13 | 富通住电特种光缆（天津）有限公司 | Multilayer skeleton slot optical cable and manufacturing method thereof |
-
2010
- 2010-11-08 CN CN2010205954583U patent/CN201936041U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103064159A (en) * | 2011-10-21 | 2013-04-24 | 住友电气工业株式会社 | Multi-core optical cable |
| CN102590968A (en) * | 2012-04-07 | 2012-07-18 | 常熟市谷雷特机械产品设计有限公司 | Skeleton type cable |
| CN102610313A (en) * | 2012-04-07 | 2012-07-25 | 常熟市谷雷特机械产品设计有限公司 | Easily-distinguished framework-type cable |
| CN103149655A (en) * | 2012-04-07 | 2013-06-12 | 沈群华 | Skeleton-type cable |
| CN102590968B (en) * | 2012-04-07 | 2013-08-14 | 常熟市谷雷特机械产品设计有限公司 | Skeleton type cable |
| CN102610313B (en) * | 2012-04-07 | 2014-10-01 | 国网浙江余姚市供电公司 | Easily-distinguished framework-type cable |
| CN103149655B (en) * | 2012-04-07 | 2014-10-15 | 慈溪市旺盛电力发展有限公司 | Skeleton-type cable |
| CN104330863A (en) * | 2014-11-27 | 2015-02-04 | 北京亨通斯博通讯科技有限公司 | Optical cable for rail transit |
| CN104849824A (en) * | 2015-06-15 | 2015-08-19 | 长飞光纤光缆股份有限公司 | Full-dry nonmetal self-supporting skeleton-type optical cable |
| WO2016202148A1 (en) * | 2015-06-15 | 2016-12-22 | 长飞光纤光缆股份有限公司 | Optical cable having full-dry type non-metal self-supporting skeleton |
| CN105759383A (en) * | 2016-04-15 | 2016-07-13 | 富通住电特种光缆（天津）有限公司 | Multilayer skeleton slot optical cable and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110817 |