CN201075144Y - Miniature air-feeding optical fibre unit - Google Patents
Miniature air-feeding optical fibre unit Download PDFInfo
- Publication number
- CN201075144Y CN201075144Y CNU2007200410232U CN200720041023U CN201075144Y CN 201075144 Y CN201075144 Y CN 201075144Y CN U2007200410232 U CNU2007200410232 U CN U2007200410232U CN 200720041023 U CN200720041023 U CN 200720041023U CN 201075144 Y CN201075144 Y CN 201075144Y
- Authority
- CN
- China
- Prior art keywords
- optic fibre
- outer jacket
- cable core
- fiber unit
- pit
- 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
Links
- 239000013307 optical fiber Substances 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims abstract description 45
- 239000011248 coating agent Substances 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000003287 optical effect Effects 0.000 abstract description 6
- 238000007664 blowing Methods 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000004005 microsphere Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model relates to a miniature gas-assisted fiber unit, including cable core, cladding at the outer jacket of cable core periphery, the cable core includes at least an optic fibre or at least one optic fibre bundle of compriseing many optic fibres, bonds the soft coating that sets up mutually with optic fibre or optic fibre bundle outward appearance, the outer wall of outer jacket on have a plurality of pit, because a plurality of pit has on the outer jacket surface for the weight of whole optic fibre is lighter, this kind of uneven surface in pit makes optic fibre unit held up by the air easily when the gas blows, can be by the smooth hollow optical cable pipe of blowing in, blows efficiency and obtains improving, more makes the cost greatly reduced of optic fibre unit.
Description
Technical field
The utility model relates to a kind of communications optical cable, particularly a kind of miniature pneumatic transmission fiber unit that is used for the air transporting optical cable system.
Background technology
The notion that at first proposes the pneumatic transmission fiber unit by Britain Telecom since the eighties in 20th century so far, the technology of air transporting optical cable system is gradually improved, and has attained maturation at present.The air transporting optical cable system is a kind of pressurized air (about 10kg/cm that is used to from air compressor
2), by blow head fiber unit being blown into fiber cable laying technology in the mounted hollow cable tube, it possesses following four remarkable advantages:
1, initial investment cost and to reduce optical fiber idle can be reduced,, corresponding required fiber count can be blown at required place in case fiber count needs to increase;
2, because fiber unit is by compressed air delivery, the drawing stress that is caused by the blow gas pressure distribution on the whole optical fiber element length is very small;
3, can continue to lay in required cable length, what installed be continuous fiber unit, thereby has obviously reduced the piece-ups of optical fiber;
4, compare with the conventional pipelines optical cable, simple in structure, easy to manufacture, thereby system cost is cheap, low price.
Existing fiber unit as shown in Figure 1, comprise cable core 1, be coated on the outer jacket 2 of cable core periphery, in order to increase the air-flow drag, usually on the outside surface of outer jacket, increase the tiny glass microsphere 3 of one deck, when being blown into this kind product in the hollow cable tube, fiber unit rubs mutually with hollow cable tube, and the glass microsphere on the outer jacket drops easily, thereby stop up the inlet of fiber unit, influence fiber unit and be blown in the hollow cable tube.
Summary of the invention
The utility model purpose is to provide in order to overcome the deficiencies in the prior art to be convenient to pneumatic transmission and thereby fiber unit can be blown into easily fiber unit in the hollow cable tube.
For achieving the above object, the technical solution adopted in the utility model is: a kind of miniature pneumatic transmission fiber unit, comprise cable core, be coated on the outer jacket of described cable core periphery, described cable core comprise at least one optical fiber or fibre bundle that at least one is made up of multifiber, with the soft coating of described optical fiber or the bonding setting of fibre bundle appearance, have several pits on the described outer jacket outside wall surface.
A plurality of described pits upwards distribute in the periphery week of described outer jacket xsect.
Because the utilization of technique scheme, the utility model compared with prior art has following advantage: owing to have several pits on the outer jacket surface, make that the weight of whole optical fiber is lighter, the surface of this uneven makes fiber unit be held up by air easily when air-blowing, hollow cable tube can be blown into smoothly, blow efficient and be improved, more make the cost of fiber unit reduce greatly.
Description of drawings
The cross sectional representation of accompanying drawing 1 existing miniature pneumatic transmission fiber unit;
Accompanying drawing 2 is the cross sectional representation of the utility model pneumatic transmission fiber unit;
Wherein: 1, cable core; 11, fibre bundle; 12, soft coating;
2, outer jacket; 21, pit; 3, glass microsphere;
Embodiment
Below in conjunction with accompanying drawing, describe particular content of the present utility model in detail for example:
Miniature pneumatic transmission fiber unit shown in Figure 2; comprise cable core 1, be coated on the outer jacket 2 of cable core 1 periphery; cable core 1 comprises a plurality of fibre bundles 11; between fibre bundle 11 and outer jacket 2, be bonded with soft coating 12; this soft coating 12 makes the lateral pressure resistant of fiber unit and shock resistance be improved; to the effect that fibre bundle 11 plays buffering and protects, in the present embodiment, fiber unit comprises 4 described fibre bundles 11 altogether.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. miniature pneumatic transmission fiber unit, comprise cable core (1), be coated on the outer jacket (2) of described cable core (1) periphery, described cable core (1) comprise at least one optical fiber or fibre bundle (11) that at least one is made up of multifiber, with the soft coating (12) of described optical fiber or the bonding setting of fibre bundle (11) appearance, it is characterized in that: have several pits (21) on described outer jacket (2) outside wall surface.
2. miniature pneumatic transmission fiber unit according to claim 1 is characterized in that: a plurality of described pits (21) that upwards distribute in periphery week of described outer jacket (2) xsect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200410232U CN201075144Y (en) | 2007-07-26 | 2007-07-26 | Miniature air-feeding optical fibre unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200410232U CN201075144Y (en) | 2007-07-26 | 2007-07-26 | Miniature air-feeding optical fibre unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075144Y true CN201075144Y (en) | 2008-06-18 |
Family
ID=39520403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200410232U Expired - Fee Related CN201075144Y (en) | 2007-07-26 | 2007-07-26 | Miniature air-feeding optical fibre unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075144Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102122049A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Miniature half-tight-sleeving gas-blast optical fiber unit |
| CN102183830A (en) * | 2010-05-31 | 2011-09-14 | 四川汇源光通信有限公司 | Miniature twisted air-blowing optical cable with raised grain groove on surface and manufacture method thereof |
| WO2013174193A1 (en) * | 2012-05-24 | 2013-11-28 | 长飞光纤光缆有限公司 | Fully dry, central tube-type air blown micro optical fiber |
-
2007
- 2007-07-26 CN CNU2007200410232U patent/CN201075144Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102183830A (en) * | 2010-05-31 | 2011-09-14 | 四川汇源光通信有限公司 | Miniature twisted air-blowing optical cable with raised grain groove on surface and manufacture method thereof |
| WO2011150787A1 (en) * | 2010-05-31 | 2011-12-08 | 四川汇源光通信有限公司 | Optical cable structure for air blown installation and manufacture method thereof |
| CN102122049A (en) * | 2010-10-13 | 2011-07-13 | 成都亨通光通信有限公司 | Miniature half-tight-sleeving gas-blast optical fiber unit |
| WO2013174193A1 (en) * | 2012-05-24 | 2013-11-28 | 长飞光纤光缆有限公司 | Fully dry, central tube-type air blown micro optical fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 |