CN203909354U - Round indoor and outdoor leading-in optical cable - Google Patents
Round indoor and outdoor leading-in optical cable Download PDFInfo
- Publication number
- CN203909354U CN203909354U CN201420051939.6U CN201420051939U CN203909354U CN 203909354 U CN203909354 U CN 203909354U CN 201420051939 U CN201420051939 U CN 201420051939U CN 203909354 U CN203909354 U CN 203909354U
- Authority
- CN
- China
- Prior art keywords
- layer
- optical cable
- enhancement layer
- tight sleeve
- oversheath
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 45
- 239000003063 flame retardant Substances 0.000 claims abstract description 13
- 239000011247 coating layer Substances 0.000 claims abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 11
- 229920000098 polyolefin Polymers 0.000 claims abstract description 6
- 239000013307 optical fiber Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 9
- 239000004760 aramid Substances 0.000 claims description 5
- 229920003235 aromatic polyamide Polymers 0.000 claims description 5
- 239000000835 fiber Substances 0.000 abstract description 7
- 238000005452 bending Methods 0.000 abstract description 3
- 229920006231 aramid fiber Polymers 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Abstract
A round indoor and outdoor leading-in optical cable belongs to the technical field of optical elements, systems or apparatuses, and more specifically relates to a light guide, including improvements on optical cable structures of a light guide and other optical elements. The round indoor and outdoor leading-in optical cable, provided by the utility model, has a simple structure, exhibits great press and bending resistance during butt joint, and is high in mechanical strength. The round indoor and outdoor leading-in optical cable comprises a fiber and an oversheath. The structural main points of the optical cable are that a tight sleeve layer, a coating layer and an enhancement layer are successively arranged outside the fiber; the oversheath is disposed outside the enhancement layer; the tight sleeve layer is a low-smoke, halogen free and flame retardant polyolefin tight sleeve layer; and the enhancement layer belongs to an aramid fiber yarn enhancement layer.
Description
Technical field
The utility model belongs to optical element, system or Instrument technology field, specifically, relates to photoconduction; The improvement of the cable configuration that comprises photoconduction and other optical elements.
Background technology
Optical cable is mainly to consist of light transmitting fiber and plastic protective sleeve pipe and plastic peel.Optical cable is that the optical fiber of some forms the cable heart according to certain way, is surrounded by sheath outward, and the also coated outer jacket having, in order to realize a kind of communication line of optical signal transmission.
General optical cable resistance to compression and flexing resistance when termination all show generally, therefore, have significant limitation when optical cable is used.
And traditional butterfly leading in cable profile adopts square structure, cable phenomenon is often distorted, breaks in the process of wiring.Optical fiber is directly placed in optical cable, and the factors such as temperature, external force easily make optic fibre force, causes the increase of optical fiber attenuation coefficient, life-span to reduce.Between butterfly optical cable bottom portion of groove and optical fiber, jacket thickness is too thin, and easily ponding and dust, cause the impact on optical fiber, reduces optical fiber serviceable life.Though butterfly optical cable has ripe and the matching used advantage of quick coupler, little with the connection power value between quick connection, easily causes additional attenuation, affects transmission performance.
Summary of the invention
The utility model is exactly for the problems referred to above, resistance to compression and flexing resistance is good and physical strength the is high inside and outside leading in cable of a kind of circular cell when a kind of simple in structure, termination is provided.
For achieving the above object, the utility model adopts following technical scheme, and the utility model comprises optical fiber and oversheath, and its structural feature is: at optical fiber, be disposed with tight sleeve layer, coating layer and enhancement layer outward; Described oversheath is arranged on enhancement layer outside, and described tight sleeve layer adopts low smoke halogen-free flame-retardant polyolefin tight sleeve layer; Described enhancement layer adopts aramid yarn enhancement layer.
As a kind of preferred version, the xsect of the described optical cable consisting of optical fiber, tight sleeve layer, coating layer, enhancement layer and oversheath is circular.
As another kind of preferred version, described oversheath adopts black halogen-free low-smoke flame retardant material; The guaranteed optical cable uvioresistant of black halogen-free low-smoke flame retardant material, ageing-resistant, the feature that adapts to wide temperature range, and good fire resistance, meet outdoor when the indoor introducing, fire-retardant requirement to optical cable, applicable indoor and outdoor is installation and the environment for use of complexity particularly, and a kind of leading in cable of function admirable is provided for Fiber to the home.
The utility model beneficial effect.
1, physical strength is high.
The utility model has enhancement layer in coating layer arranged outside, and enhancement layer is aramid yarn enhancement layer; That aramid yarn enhancement layer has is light, anti-lightning strike, physical strength is high, tensile property good and advantage easy to use, crosses over the needs of building and road in the time of can meeting outdoor application.Advantage in large width Application in Building is very obvious.
2, resistance to compression and flexing resistance are good during termination.
The utility model is outside equipped with tight sleeve layer at optical fiber, and tight sleeve layer adopts low smoke halogen-free flame-retardant polyolefin material; Tight cover is compared with pine cover, tightr between restrictive coating and optical fiber, when being subject to lateral pressure, can provide better support, meanwhile, because of compact conformation, need not add the material water-proof materials such as cable cream, not only environmental protection but also guaranteed the long-time stability of material; Low smoke halogen-free flame-retardant polyolefin has good pliability, makes optical cable have good bending resistance, anti-torsion performance; Optical cable adopts bend insensitive fiber, and bending radius is little.
3, simple in structure.
The utility model comprises optical fiber, tight sleeve layer, coating layer and enhancement layer; Member is few, connection is simple.Therefore, simple in structure.
Accompanying drawing explanation
Clearer for technical matters, technical scheme and beneficial effect that the utility model is solved, below in conjunction with the drawings and the specific embodiments, the utility model is further elaborated.Should be appreciated that embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 is the utility model structural representation.
In figure, 1 is that optical fiber, 2 is that tight sleeve layer, 3 is that coating layer, 4 is that enhancement layer, 5 is oversheath.
Embodiment
As shown in the figure, the utility model comprises optical fiber 1 and oversheath 5, is disposed with tight sleeve layer 2, coating layer 3 and enhancement layer 4 outside optical fiber 1; Described oversheath 5 is arranged on enhancement layer 4 outsides, and described tight sleeve layer 2 adopts low smoke halogen-free flame-retardant polyolefin tight sleeve layer; Described enhancement layer 4 adopts aramid yarn enhancement layer.
The xsect of the described optical cable consisting of optical fiber 1, tight sleeve layer 2, coating layer 3, enhancement layer 4 and oversheath 5 is circular.
Described oversheath 5 adopts black halogen-free low-smoke flame retardant material; The guaranteed optical cable uvioresistant of black halogen-free low-smoke flame retardant material, ageing-resistant, the feature that adapts to wide temperature range, and good fire resistance, meet outdoor when the indoor introducing, fire-retardant requirement to optical cable, applicable indoor and outdoor is installation and the environment for use of complexity particularly, and a kind of leading in cable of function admirable is provided for Fiber to the home.
Coating layer 3 can adopt plastic cement skin layer, and plastic cement coating layer is waterproof effectively, and plays the effect of buffering external force.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (2)
1. the inside and outside leading in cable of circular cell, comprises optical fiber (1) and oversheath (5), it is characterized in that: outside optical fiber (1), be disposed with tight sleeve layer (2), coating layer (3) and enhancement layer (4); Described oversheath (5) is arranged on enhancement layer (4) outside, and described tight sleeve layer (2) adopts low smoke halogen-free flame-retardant polyolefin tight sleeve layer; Described enhancement layer (4) adopts aramid yarn enhancement layer, and described oversheath (5) adopts black halogen-free low-smoke flame retardant material.
2. the inside and outside leading in cable of a kind of circular cell according to claim 1, is characterized in that: the xsect of the described optical cable consisting of optical fiber (1), tight sleeve layer (2), coating layer (3), enhancement layer (4) and oversheath (5) is for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051939.6U CN203909354U (en) | 2014-01-27 | 2014-01-27 | Round indoor and outdoor leading-in optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051939.6U CN203909354U (en) | 2014-01-27 | 2014-01-27 | Round indoor and outdoor leading-in optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909354U true CN203909354U (en) | 2014-10-29 |
Family
ID=51783616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420051939.6U Expired - Lifetime CN203909354U (en) | 2014-01-27 | 2014-01-27 | Round indoor and outdoor leading-in optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203909354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190257A (en) * | 2020-02-28 | 2020-05-22 | 江苏中天科技股份有限公司 | Indoor and outdoor dual-purpose optical cable |
-
2014
- 2014-01-27 CN CN201420051939.6U patent/CN203909354U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111190257A (en) * | 2020-02-28 | 2020-05-22 | 江苏中天科技股份有限公司 | Indoor and outdoor dual-purpose 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: 20141029 |