CN201974557U - High fiber count layer stranded type optical cable - Google Patents
High fiber count layer stranded type optical cable Download PDFInfo
- Publication number
- CN201974557U CN201974557U CN2011200462553U CN201120046255U CN201974557U CN 201974557 U CN201974557 U CN 201974557U CN 2011200462553 U CN2011200462553 U CN 2011200462553U CN 201120046255 U CN201120046255 U CN 201120046255U CN 201974557 U CN201974557 U CN 201974557U
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- Prior art keywords
- optical fiber
- cable
- loose tube
- layer
- stranded
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- 239000000835 fiber Substances 0.000 title abstract description 23
- 230000003287 optical effect Effects 0.000 title abstract description 17
- 239000013307 optical fiber Substances 0.000 claims abstract description 69
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 239000004411 aluminium Substances 0.000 claims abstract description 17
- 238000005728 strengthening Methods 0.000 claims description 20
- 239000006071 cream Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 9
- 239000003086 colorant Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 5
- 235000011613 Pinus brutia Nutrition 0.000 description 5
- 241000018646 Pinus brutia Species 0.000 description 5
- 238000000576 coating method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a high fiber count layer stranded type optical cable which comprises a center reinforcing core, an optical fiber loose tube, a steel strip or an aluminium strip and a jacket. A reinforcing core protection layer is arranged outside the center reinforcing core. The optical fiber loose tube is stranded and connected on the reinforcing core protection layer. The steel strip or the aluminium strip is longitudinally coated on an outer layer of the stranded optical fiber loose tube. An outer layer of the steel strip or the aluminium strip is also provided with the jacket. A plurality of groups of optical fibers are arranged in the optical fiber loose tube. Each group contains 12 optical fibers. Fiber paste is filled among the optical fibers. PBT (polybutylece terephthalate) tubes are arranged on the outer layers of the optical fibers. Waterproof cable paste is filled around the PBT tubes. The layer stranded type optical cable with the large core number has the advantages that the optical fiber loose tube formed by high fiber count loose fibers is used as a base unit; the number of the optical fibers in the loose tube is a multiple of 12, so that the outer diameter of the formed high fiber count layer stranded type optical cable is less than the outer diameter of a layer stranded ribbon optical cable with the same fiber count with the high fiber count layer stranded type optical cable; special production equipment is not required; and the high fiber count layer stranded type optical cable can be manufactured by conventional optical cable manufacturing equipment and has simple process, stable and reliable performance and lower cost.
Description
Technical field
The utility model relates to optical fiber technology, relates in particular to structure and manufacturing technology that a kind of big core is counted optical cable.
Background technology
The high speed development of Metropolitan Area Network (MAN) and Access Network will increase the demand to optical fiber, in optical fiber Metropolitan Area Network (MAN) and Access Network, because the economize on electricity that connects is more, often need to lay the optical cable of big core number, can adopt the structure of optical fiber ribbon cable usually.Optical fiber ribbon cable has many good qualities: integrated level is higher, be that identical fiber cores can be done cable configuration less, it is less to take route resource, reduced optical cable welding expense, improved installation effectiveness, in addition because the decline of optical fiber cost, the progress of fibre ribbon and optic fibre manufacturing technology makes that the fibre loss of ribbon fiber and common loose fibre optical cable is close substantially.
Layer-twisted optical fiber ribbon cable is formed so that the SZ mode is stranded anti-opening on the element by loose sleeve pipe, becomes cable core with the 1+4 structural group usually, and 6 cores or the 12 core band fibres of adopting in the every beam tube superimposed with the fine number of different band more, as 6 * 6F to 6 * 12F or the like.Because the stranded pattern of multitube of layer-twisted type structure, so fiber number can be done greatlyyer than central beam tube type optical fiber ribbon cable, its stranding pattern is identical with conventional layer-stranding cable.
But the making of layer-twisted optical fiber ribbon cable needs specialized equipment: comprise optical fiber and band machine, fibre ribbon secondary coating production line and special-purpose optical fiber ribbon cable SZ stranding machine.So, make production run more loaded down with trivial details, also increased production cost greatly.
The utility model content
The technical problems to be solved in the utility model is: provide that a kind of technology is simple, cost big core lower, stable performance is counted layer-stranding cable.
In order to overcome the defective that exists in the background technology; the technical scheme that its technical matters that solves the utility model adopts is: a kind of big core is counted layer-stranding cable; comprise the center strengthening core; optical fiber loose tube; steel band or aluminium strip and sheath; described center strengthening core skin is provided with the strengthening core protective seam; described optical fiber loose tube is stranded to be connected on the strengthening core protective seam; described steel band or aluminium strip are indulged and are wrapped in stranded optical fiber loose tube skin; described steel band or aluminium strip skin also are provided with sheath; be provided with some groups of optical fiber in the described optical fiber loose tube; described every group is 12 optical fiber; be filled with fine cream between the described optical fiber; described fiber outer layer is provided with the PBT pipe, fills the cable cream that blocks water around the described PBT pipe.
According to another embodiment of the present utility model, a kind of big core is counted layer-stranding cable and is comprised that further the yarn by 12 kinds of colors is intertwined and connected to make colour code between described every group of optical fiber.
According to another embodiment of the present utility model, a kind of big core is counted layer-stranding cable and is comprised that further described stranded mode is the stranded mode of SZ.
According to another embodiment of the present utility model, a kind of big core is counted layer-stranding cable and is further comprised between the described stranded optical fiber loose tube by pricking yarn and fixing.
According to another embodiment of the present utility model, a kind of big core is counted layer-stranding cable and is further comprised in the gap between described center strengthening core and the optical fiber loose tube and be filled with the cable cream that blocks water.
According to another embodiment of the present utility model, a kind of big core is counted layer-stranding cable and is further comprised in the space between described optical fiber loose tube and outer steel band or the aluminium strip and be filled with the cable cream that blocks water.
The utility model has solved the defective that exists in the background technology, propose a kind of big core and count layer-stranding cable, it is an elementary cell by the optical fiber loose tube that the diffusing fibre of multicore number constitutes, and again with the stranded stranding of SZ mode, the fiber count in the loose sleeve pipe is 12 multiple, the big core of Gou Chenging is counted the external diameter of layer-stranding cable than littler with the layer-twisted optical fiber ribbon cable of core number thus, need not production equipment special, can make of conventional fiber optic cable manufacturing equipment, technology is simple, stable and reliable for performance, cost is lower.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of preferred embodiment of the present utility model;
Fig. 2 is the structural representation of this practical optical fiber loose tube;
Fig. 3 is the cut-open view of Fig. 2.
Wherein: 1, optical fiber, 2, prick yarn, 3, fine cream, 4, the PBT pipe, 5, the center strengthening core, 6, the strengthening core protective seam, 7, the cable cream that blocks water, 8, steel band or aluminium strip, 9, sheath.
Embodiment
With preferred embodiment the utility model is described in further detail in conjunction with the accompanying drawings now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of big core is as Figure 1-3 counted layer-stranding cable; comprise center strengthening core 5; optical fiber loose tube; steel band or aluminium strip 8 and sheath 9; described center strengthening core 5 skins are provided with strengthening core protective seam 6; described optical fiber loose tube is stranded to be connected on the strengthening core protective seam 6; described steel band or aluminium strip 8 are indulged and are wrapped in stranded optical fiber loose tube skin; described steel band or aluminium strip 8 skins also are provided with sheath 9; be provided with some groups of optical fiber 1 in the described optical fiber loose tube; described every group is 12 optical fiber 1; be filled with fine cream 3 between the described optical fiber 1; described optical fiber 1 skin is provided with PBT pipe 4, fills the cable cream 7 that blocks water around the described PBT pipe 4.
Optical fiber loose tube internal optical fiber 1 per 12 cores shown in Fig. 2-3 are one group, and the quantity of every optical fiber loose tube inner fiber 1 is 12 multiple, as 12 cores, and 24 cores, 36 cores, 48 cores etc.Usually the colour code of optical fiber 1 has 12 kinds, be by industry standard: blue, orange, green, brown, grey, white, red, black, yellow, purple, pink, dark green 12 kinds, thereby every group of 12 optical fiber are all with above-listed 12 kinds of color dyes sign, and then in the secondary coating process, with per 12 cores is one group, yarn with different colours twines respectively, is identified, to show difference.
This practical described optical cable adopts the stranded stranding of the stranded mode of SZ, is and adopts 6, but do not limit 6 optical fiber loose tubes to be stranded on the center strengthening core 5 in the SZ mode, and adopt bundle yarn 2 fixing, described stranded optical fiber loose tube outer vertical Baogang band or aluminium strip 8.
The cable cream 7 that blocks water shown in this practicality is filled at twice, is for the first time to be filled with the cable cream 7 that blocks water in the gap between described strengthening core protective seam 6 and optical fiber loose tube; For the second time be to be filled with the cable cream 7 that blocks water in the space between described optical fiber loose tube and outer steel band or aluminium strip 8, vertically seep water to prevent optical cable.
This practical described optical cable also can adopt the dry type stop water, promptly adds water blocking yarn in the space between strengthening core protective seam 6 and optical fiber loose tube, and vertical bag blocks water to bring and replaces blocking water cable cream outside the cable core behind stranding, to prevent vertical infiltration.
This practicality proposes big core and counts in the layer-stranding cable structure, and the typical sizes of optical fiber loose tube is: the external diameter of 12 cores pine sleeve pipe is 2.4mm; 24 cores pine cover external diameter of pipe is 3.0mm; 36 cores pine cover external diameter of pipe is 3.5mm; 48 cores pine cover external diameter of pipe is 4.0mm etc.If adopt the 1+6 structure, then can constitute 6 * 48 cores=288 core optical cables, cable outer diameter is 18mm.The external diameter of 288 core layer-twisted optical fiber ribbon cables is about 19.5mm by comparison, and 48 cores of this practicality pine cover external diameter of pipe is 4.0mm, can make on the secondary coating production line of routine fully.As adopt the 1+12 structure, and optical cable core number is 576 cores, and all process steps can carry out on conventional fiber optic cable plant fully, and manufacture craft is more simple, and is stable and reliable for performance, and cost is lower.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the instructions, must determine its technical scope according to the claim scope.
Claims (6)
1. a big core is counted layer-stranding cable; it is characterized in that: comprise center strengthening core (5); optical fiber loose tube; steel band or aluminium strip (8) and sheath (9); described center strengthening core (5) skin is provided with strengthening core protective seam (6); described optical fiber loose tube is stranded to be connected on the strengthening core protective seam (6); described steel band or aluminium strip (8) are indulged and are wrapped in stranded optical fiber loose tube skin; described steel band or aluminium strip (8) skin also is provided with sheath (9); be provided with some groups of optical fiber (1) in the described optical fiber loose tube; described every group is 12 optical fiber (1); be filled with fine cream (3) between the described optical fiber (1); described optical fiber (1) skin is provided with PBT pipe (4), and described PBT pipe (4) is filled the cable cream (7) that blocks water on every side.
2. a kind of big core as claimed in claim 1 is counted layer-stranding cable, it is characterized in that: the yarn by 12 kinds of colors between described every group of optical fiber (1) is intertwined and connected to make colour code.
3. a kind of big core as claimed in claim 1 is counted layer-stranding cable, it is characterized in that: described stranded mode is the stranded mode of SZ.
4. a kind of big core as claimed in claim 1 is counted layer-stranding cable, it is characterized in that: fixing by pricking yarn (2) between the described stranded optical fiber loose tube.
5. a kind of big core as claimed in claim 1 is counted layer-stranding cable, it is characterized in that: be filled with the cable cream (7) that blocks water in the gap between described center strengthening core (5) and the optical fiber loose tube.
6. a kind of big core as claimed in claim 1 is counted layer-stranding cable, it is characterized in that: be filled with the cable cream (7) that blocks water in the space between described optical fiber loose tube and outer steel band or the aluminium strip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200462553U CN201974557U (en) | 2011-02-24 | 2011-02-24 | High fiber count layer stranded type optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200462553U CN201974557U (en) | 2011-02-24 | 2011-02-24 | High fiber count layer stranded type optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201974557U true CN201974557U (en) | 2011-09-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200462553U Expired - Lifetime CN201974557U (en) | 2011-02-24 | 2011-02-24 | High fiber count layer stranded type optical cable |
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| CN (1) | CN201974557U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412381A (en) * | 2013-07-29 | 2013-11-27 | 成都亨通光通信有限公司 | Flame-retarding fire-resistant layer stranding optical cable used for coal mine |
| CN103424826A (en) * | 2012-05-18 | 2013-12-04 | 河南科信电缆有限公司 | Complete-dry type optical cable |
| CN104865655A (en) * | 2015-04-17 | 2015-08-26 | 江苏南方通信科技有限公司 | Nanometer water-emulsion waterproof sheathed optical cable |
| CN104880785A (en) * | 2015-04-17 | 2015-09-02 | 江苏南方通信科技有限公司 | Environment-friendly sheath optical cable of high polymer and high flame retardant property |
| CN104898217A (en) * | 2015-04-17 | 2015-09-09 | 江苏南方通信科技有限公司 | Novel optical cable with polymer modified water-emulsion asphalt waterproof coating |
| CN104965269A (en) * | 2015-04-17 | 2015-10-07 | 江苏南方通信科技有限公司 | Modified waste residue fireproof and waterproof coating optical cable |
| CN105353484A (en) * | 2015-12-16 | 2016-02-24 | 南京华信藤仓光通信有限公司 | Optical cable with large core number |
| CN105566866A (en) * | 2016-01-27 | 2016-05-11 | 常熟市谷雷特机械产品设计有限公司 | Modified PBT material, pressure-resistant loose tube and optical cable with pressure-resistant loose tube |
| CN110251058A (en) * | 2014-07-24 | 2019-09-20 | Z思快尔有限公司 | Multicore fibrescope |
-
2011
- 2011-02-24 CN CN2011200462553U patent/CN201974557U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424826A (en) * | 2012-05-18 | 2013-12-04 | 河南科信电缆有限公司 | Complete-dry type optical cable |
| CN103412381A (en) * | 2013-07-29 | 2013-11-27 | 成都亨通光通信有限公司 | Flame-retarding fire-resistant layer stranding optical cable used for coal mine |
| CN110251058A (en) * | 2014-07-24 | 2019-09-20 | Z思快尔有限公司 | Multicore fibrescope |
| CN104865655B (en) * | 2015-04-17 | 2018-02-27 | 江苏南方通信科技有限公司 | A kind of nanometer emulsion type water-proof jacket optical cable |
| CN104898217A (en) * | 2015-04-17 | 2015-09-09 | 江苏南方通信科技有限公司 | Novel optical cable with polymer modified water-emulsion asphalt waterproof coating |
| CN104965269A (en) * | 2015-04-17 | 2015-10-07 | 江苏南方通信科技有限公司 | Modified waste residue fireproof and waterproof coating optical cable |
| CN104880785B (en) * | 2015-04-17 | 2018-01-23 | 江苏南方通信科技有限公司 | A kind of environment-friendly type jacketed cable of high polymer high flame resistance |
| CN104880785A (en) * | 2015-04-17 | 2015-09-02 | 江苏南方通信科技有限公司 | Environment-friendly sheath optical cable of high polymer and high flame retardant property |
| CN104965269B (en) * | 2015-04-17 | 2018-04-10 | 江苏南方通信科技有限公司 | A kind of modified waste residue fire resisting waterproof coating optical cable |
| CN104898217B (en) * | 2015-04-17 | 2018-05-11 | 江苏南方通信科技有限公司 | A kind of novel high polymer is modified emulsion type Bituminous waterproof coating optical cable |
| CN104865655A (en) * | 2015-04-17 | 2015-08-26 | 江苏南方通信科技有限公司 | Nanometer water-emulsion waterproof sheathed optical cable |
| CN105353484A (en) * | 2015-12-16 | 2016-02-24 | 南京华信藤仓光通信有限公司 | Optical cable with large core number |
| CN105566866A (en) * | 2016-01-27 | 2016-05-11 | 常熟市谷雷特机械产品设计有限公司 | Modified PBT material, pressure-resistant loose tube and optical cable with pressure-resistant loose tube |
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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: 20110914 |