CN201199274Y - Whole-medium center beam-tube type airlancing miniature optical cable - Google Patents
Whole-medium center beam-tube type airlancing miniature optical cable Download PDFInfo
- Publication number
- CN201199274Y CN201199274Y CNU2008200576872U CN200820057687U CN201199274Y CN 201199274 Y CN201199274 Y CN 201199274Y CN U2008200576872 U CNU2008200576872 U CN U2008200576872U CN 200820057687 U CN200820057687 U CN 200820057687U CN 201199274 Y CN201199274 Y CN 201199274Y
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Abstract
The utility model discloses an all-dielectric central beam tube-type air-blown micro cable which comprises an optical fiber, a loose tube, a reinforcer and an outer sheath. A water resistant filling compound is arranged between the optical fiber and the loose tube; the loose tube has double-layer structure that can not be separated and formed by the one-time extrusion of two different materials; the optical cable has relatively small diameter and simple structure and is most remarkably characterized by adopting the double-layer loose tube, thus causing the optical cable to have low temperature resistance, lateral pressure resistance and low contractibility as well as very excellent air blowing performance with fast air blowing speed and long air blowing length; the advantages of the central beam tube-type air-blown micro cable are exerted to the greatest extent, thus causing construction to be easier and highly efficient; the optical cable is more stable and safer after operation.
Description
Technical field
The present invention relates to a kind of communication facilities, relate in particular to a kind of air-blowing micro optical cable.
Background technology
The air-blowing micro optical cable generally divides two kinds of Twist-Style, All-Media Floor and central beam tube types, and layer-twisted type uses in the bigger occasion of demand core number, and cable outer diameter is bigger, and the optical cable bending property is relatively poor, and difficulty of construction is also corresponding bigger, so less use.The central beam tube type external diameter is little, trusted by the client.The central beam tube type that uses has two kinds at present, and a kind of is full medium central beam tube type, and a kind of is the central steel tubular type.Full medium central beam tube type generally uses individual layer pine sleeve pipe, and this optical cable cryogenic property is good, and light bending property is superior, air-blowing speed is fast, and air-blowing length is long, but the optical cable shrinkability is big, when the temperature difference was big, optical fiber is easy stressed fracture in connector box, causes signal interruption.According to the difference of loose sleeve pipe materials used, lateral pressure resistant power was little when this optical cable was low temperature resistant, poor performance at low temperatures when lateral pressure resistant power is big, and you can't have both at the same time.Central steel tube cable lateral pressure resistant power is big, with the obvious advantage, but this optical cable bending property is poor, the air-blowing poor performance, and air-blowing speed is slow, and air-blowing length is very short, and is just shorter when circuit is crooked, influences construction speed, time-consuming effort again.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of diameter less, have a good bending property, simultaneously by low temperature resistant again, lateral pressure resistant, the superior air-blowing performance of holding concurrently, air-blowing length is long, the fireballing full medium central beam tube type air-blowing micro optical cable of air-blowing.
In order to solve the problems of the technologies described above, full medium central beam tube type air-blowing micro optical cable of the present utility model, comprise light transmitting fiber, loose sleeve pipe, reinforcement and oversheath, be provided with the filled composite that blocks water between light transmitting fiber and the loose sleeve pipe, the double-decker of combining closely, can not peeling off of described loose sleeve pipe for making by extrusion molding of two kinds of different materials.
Be provided with one or more light transmitting fiber in the described loose sleeve pipe.Described fiber reinforcement is the high strength fibre aramid fiber preferably.
The utility model has adopted the special version of double-deck loose sleeve pipe. and a kind of material has excellent physical and mechanical properties, resistance to impact excellence especially, pulling strengrth, bending strength, compression strenght height; Creep properties is little, dimensionally stable; Have good thermotolerance and lower temperature resistance, have stable mechanical property in wider temperature range, dimensional stability can be used at-60～120 ℃ long-term down; The dimensional accuracy height, dimensional stability is good, but fatigue resistance is poor, is easy to generate stress cracking, and solvent resistance is poor, and wearing quality is not good enough.
Another kind of material crystallization rate is fast, but rapid shaping; Water-intake rate is low, and electric property is excellent and change little with humiture; Excellent impact toughness is arranged; Outstanding rub resistance and abrasion performance characteristic.But the crystallization shrinkage factor is big, poor dimensional stability.
The utility model passes through an extrusion molding with two kinds of materials, inside and outside two-layer combining closely, can not peel off, produced good effect thus, material advantage separately can both keep, shortcoming is but remedied by the other side's advantage, makes loose sleeve pipe have superior mechanical property, protection against the tide, lateral pressure resistant, resistance to low temperature, resistance to bend(ing) energy and low-shrinkage; This optical cable has possessed very superior air-blowing performance simultaneously, and air-blowing speed is fast, and air-blowing length is long.Solved the difficult problem of former central beam tube type air-blowing micro optical cable, it is simple more, efficient that construction becomes, and will stablize more and safety after the optical cable operation.
Description of drawings
Fig. 1. the structural representation of one of little cable of the utility model full medium central beam tube type air-blowing;
Fig. 2. two structural representation of the little cable of the full medium central beam tube type of the utility model air-blowing;
Fig. 3. three structural representation of the little cable of the full medium central beam tube type of the utility model air-blowing;
Fig. 4. four structural representation of the little cable of the full medium central beam tube type of the utility model air-blowing.
Among the figure: 1. optical fiber (fibre bundle) filled composite 3. high strength fibre reinforcements that 2. block water
4. oversheath 5. double-deck loose sleeve pipes
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Fig. 1,2,3 shows the little cable of full medium central beam tube type of the present utility model air-blowing, comprise optical fiber (fibre bundle) 1 block water filled composite 2 high strength fibre reinforcements, 3 oversheaths 4 and double-deck loose sleeve pipe 5, oversheath 4 main bodys are round shape, are made by high density polyethylene or fire proofing.Double-deck loose sleeve pipe 5 is by extrusion molding of two kinds of different materials, fill the filled composite 2 that blocks water in the double-deck loose sleeve pipe, several 12,24,36,48 differences of core according to demand, can place optical fiber or fibre bundle 1, indulge between double-deck loose sleeve pipe 5 and the oversheath 4 and put high strength fibre reinforcement (high strength fibre aramid fiber) 3.
Claims (3)
1. full medium central beam tube type air-blowing micro optical cable, comprise light transmitting fiber (1), loose sleeve pipe (5), reinforcement (3) and oversheath (4), be provided with the filled composite that blocks water (2) between light transmitting fiber (1) and the loose sleeve pipe (5), it is characterized in that: the double-decker of combining closely, can not peeling off of described loose sleeve pipe (5) for making by extrusion molding of different materials.
2. full medium central beam tube type air-blowing micro optical cable according to claim 1 is characterized in that: be provided with one or more light transmitting fiber in the described loose sleeve pipe (5).
3. the little cable of full medium central beam tube type according to claim 1 air-blowing is characterized in that: described fiber reinforcement (3) is the high strength fibre aramid fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200576872U CN201199274Y (en) | 2008-04-24 | 2008-04-24 | Whole-medium center beam-tube type airlancing miniature optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200576872U CN201199274Y (en) | 2008-04-24 | 2008-04-24 | Whole-medium center beam-tube type airlancing miniature optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201199274Y true CN201199274Y (en) | 2009-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200576872U Expired - Lifetime CN201199274Y (en) | 2008-04-24 | 2008-04-24 | Whole-medium center beam-tube type airlancing miniature optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201199274Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794007A (en) * | 2010-03-11 | 2010-08-04 | 浙江中天电线电缆有限公司 | Non-belt fiber and large-core number single-layer stranding optical cable |
| 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 |
| 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 |
| CN103424828A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Ultra-micro micro-beam-tube type optical cable |
| CN103995332A (en) * | 2014-05-21 | 2014-08-20 | 北京亨通斯博通讯科技有限公司 | Novel temperature-measuring air-blowing type micro optical cable |
| CN105278066A (en) * | 2015-11-17 | 2016-01-27 | 江苏亨通光电股份有限公司 | Double layer co-extrusion method for extremely micro air-blowing optical cable, and the extremely micro air-blowing optical cable |
-
2008
- 2008-04-24 CN CNU2008200576872U patent/CN201199274Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794007A (en) * | 2010-03-11 | 2010-08-04 | 浙江中天电线电缆有限公司 | Non-belt fiber and large-core number single-layer stranding optical cable |
| 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 |
| 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 |
| CN103424828A (en) * | 2013-07-26 | 2013-12-04 | 成都亨通光通信有限公司 | Ultra-micro micro-beam-tube type optical cable |
| CN103995332A (en) * | 2014-05-21 | 2014-08-20 | 北京亨通斯博通讯科技有限公司 | Novel temperature-measuring air-blowing type micro optical cable |
| CN103995332B (en) * | 2014-05-21 | 2017-02-15 | 北京亨通斯博通讯科技有限公司 | Novel temperature-measuring air-blowing type micro optical cable |
| CN105278066A (en) * | 2015-11-17 | 2016-01-27 | 江苏亨通光电股份有限公司 | Double layer co-extrusion method for extremely micro air-blowing optical cable, and the extremely micro air-blowing optical cable |
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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: 20090225 |