CN204143014U - A kind of two sheath twin-core circular optical cable - Google Patents
A kind of two sheath twin-core circular optical cable Download PDFInfo
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- CN204143014U CN204143014U CN201420455643.0U CN201420455643U CN204143014U CN 204143014 U CN204143014 U CN 204143014U CN 201420455643 U CN201420455643 U CN 201420455643U CN 204143014 U CN204143014 U CN 204143014U
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Abstract
The utility model discloses a kind of two sheath twin-core circular optical cable, it comprises single core and tightly overlaps unit optical cable, oversheath (1) and filling cable (2), be provided with two single cores in oversheath (1) and tightly overlap unit optical cable and two fillings cable (2), fill in cable (2) and be enclosed with reinforcing element (3), single core tightly overlaps unit optical cable by tight tube fiber, aramid fiber enhancement Layer (4) and cable jacket (5) are formed, tight tube fiber is wrapped in aramid fiber enhancement Layer (4), aramid fiber enhancement Layer (4) is wrapped in cable jacket (5), two described single cores tightly overlap unit optical cable and two fill cable (2) stranded after extrude in oversheath (1).The aramid fiber reinforcement that aramid fiber enhancement Layer (4) is high strength.The beneficial effects of the utility model are: optical fiber transmission property long-time stability are high, mechanical property is high, lightweight, fire-retardant, construction and feature easy to maintenance.
Description
Technical field
The utility model relates to optical cable technology field, particularly a kind of two sheath twin-core circular optical cable.
Background technology
Fiber to the home is the technique direction tried to explore of people in recent years, but due to by cost, technology, the impact of the aspect factors such as demand, except a few countries such as Japan, also fails large-scale promotion and application so far.Utilize optical fiber as the optical fiber communication of the transmission medium of light, why can obtain develop rapidly in decades at this, be due to optical cable there is (1) transmission frequency bandwidth, message capacity is large; (2) decay little; (3) do not determine by outstanding advantages such as outside electromagnetic interference.
The cable configuration used at present is comparatively simple, this optical cable is made up of single core tight tube fiber and the restrictive coating being coated on single core tight tube fiber surface, the production technology of this optical fiber is comparatively simple, the bad mechanical property of optical fiber, in construction or use procedure, easily cause the bending of optical fiber or fracture, finally cause the Transmission of light signal, have a strong impact on the long-time stability of optical fiber transmission property.Therefore; people are in order to solve the problem of this cable machinery poor performance; one deck protecting sheathing is wrapped up at the external sheath layer of optical cable; to improve the mechanical property of optical cable entirety; but although this protecting sheathing improves the mechanical property of optical cable; ensure that optical fiber does not in use rupture, but not only increase overall weight also exist and difficult to peel off, safeguard and the shortcoming of constructional difficulties.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides two sheath twin-core circular optical cables that a kind of optical fiber transmission property long-time stability are high, mechanical property is high, lightweight, fire-retardant.
The purpose of this utility model is achieved through the following technical solutions: a kind of two sheath twin-core circular optical cable, it comprises single core and tightly overlaps unit optical cable, oversheath and filling cable, be provided with two single cores in oversheath and tightly overlap unit optical cable and two filling cables, two single cores of oversheath tightly overlap unit optical cable and two filling cables are provided with low smoke and zero halogen inner sheath each other, fill in cable and be enclosed with reinforcing element, single core tightly overlaps unit optical cable by tight tube fiber, aramid fiber enhancement Layer and cable jacket are formed, tight tube fiber is wrapped in aramid fiber enhancement Layer, aramid fiber enhancement Layer is wrapped in cable jacket, described tight tube fiber is made up of optical fiber and tight sleeve layer, optical fibre packages is wrapped in tight sleeve layer, two described single cores tightly overlap unit optical cable and two fill cables stranded after extrude in oversheath.
Described reinforcing element is the aramid fiber reinforcement of high strength.
Described optical fiber is single-mode fiber or multimode optical fiber.
Described aramid fiber enhancement Layer is the aramid fiber reinforcement of high strength.
The utility model has the following advantages: single mode or the multimode optical fiber of (1) tight tube fiber of the present utility model are wrapped in reinforcing element; reinforcing element is wrapped in aramid fiber enhancement Layer; reinforcing element and aramid fiber enhancement Layer are the aramid fiber reinforcement of high strength; this aramid fiber reinforcement has higher mechanical property; therefore prevent optical cable single mode or multimode optical fiber in construction or use procedure are bent or fracture, thus improve optical fiber transmission property long-time stability.(2) two root unit cables and two fill cables stranded after extrude in oversheath; oversheath is that low smoke and zero halogen or low temperature resistant PVC material are formed; prevent optical cable single mode or multimode optical fiber in construction or use procedure are bent or fracture further, thus further improve optical fiber transmission property long-time stability.(3) oversheath of the present utility model is that low smoke and zero halogen or low temperature resistant PVC material are formed, and this density of material is little, therefore alleviates the weight of whole optical cable, and the oversheath of this material has fire-retardant effect.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1-oversheath, 2-fills cable, 3-reinforcing element, 4-aramid fiber enhancement Layer, 5-cable jacket, 6-optical fiber, 7-tight sleeve layer.
Embodiment
Be further described the utility model below in conjunction with accompanying drawing, protection domain of the present utility model is not limited to the following stated:
As shown in Figure 1, a kind of two sheath twin-core circular optical cable, it comprises single core and tightly overlaps unit optical cable, oversheath 1 and filling cable 2, be provided with two single cores in oversheath 1 and tightly overlap unit optical cable and two filling cables 2, two single cores of oversheath 1 tightly overlap unit optical cable and two filling cables 2 are provided with low smoke and zero halogen inner sheath each other, low smoke and zero halogen inner sheath be that low smoke and zero halogen or PVC material are formed, fill in cable 2 and be enclosed with reinforcing element 3, single core tightly overlaps unit optical cable by tight tube fiber, aramid fiber enhancement Layer 4 and cable jacket 5 are formed, tight tube fiber is wrapped in aramid fiber enhancement Layer 4, aramid fiber enhancement Layer 4 is wrapped in cable jacket 5, described tight tube fiber is made up of optical fiber 6 and tight sleeve layer 7, optical fiber 6 is wrapped in tight sleeve layer 7, optical fiber 6 is single-mode fiber or multimode optical fiber, single mode or multimode optical fiber are wrapped in reinforcing element, reinforcing element is wrapped in aramid fiber enhancement Layer, reinforcing element and aramid fiber enhancement Layer are the aramid fiber reinforcement of high strength, this aramid fiber reinforcement has higher mechanical property, therefore optical cable single mode or multimode optical fiber in construction or use procedure is prevented to be bent or to fracture, thus improve optical fiber transmission property long-time stability.
As shown in Figure 1; two single cores tightly overlap unit optical cable and two fill cables 2 stranded after extrude in oversheath 1; oversheath 1 is that low smoke and zero halogen or low temperature resistant PVC material are formed; optical cable single mode or multimode optical fiber in construction or use procedure is prevented to be bent or to fracture further; thus further improve optical fiber transmission property long-time stability; because oversheath 1 is that low smoke and zero halogen or low temperature resistant PVC material are formed; low smoke and zero halogen or low temperature resistant PVC material density little; therefore alleviate the weight of whole optical cable, but also there is fire-retardant effect.
As shown in Figure 1, tight tube fiber is made up of optical fiber 6 and tight sleeve layer 7, and optical fiber 6 is single-mode fiber or multimode optical fiber, and tight tube fiber directly forms coated with the tight sleeve layer with high bond strength on single mode or multimode optical fiber.
Claims (4)
1. a two sheath twin-core circular optical cable, it is characterized in that: it comprises single core and tightly overlaps unit optical cable, oversheath (1) and filling cable (2), be provided with two single cores in oversheath (1) and tightly overlap unit optical cable and two fillings cable (2), two single cores of oversheath (1) tightly overlap unit optical cable and two fillings cable (2) are provided with low smoke and zero halogen inner sheath each other, fill in cable (2) and be enclosed with reinforcing element (3), single core tightly overlaps unit optical cable by tight tube fiber, aramid fiber enhancement Layer (4) and cable jacket (5) are formed, tight tube fiber is wrapped in aramid fiber enhancement Layer (4), aramid fiber enhancement Layer (4) is wrapped in cable jacket (5), described tight tube fiber is made up of optical fiber (6) and tight sleeve layer (7), optical fiber (6) is wrapped in tight sleeve layer (7), two described single cores tightly overlap unit optical cable and two fill cable (2) stranded after extrude in oversheath (1).
2. the two sheath twin-core circular optical cable of one according to claim 1, is characterized in that: the aramid fiber reinforcement that described reinforcing element (3) is high strength.
3. the two sheath twin-core circular optical cable of one according to claim 1, is characterized in that: described optical fiber (6) is single-mode fiber or multimode optical fiber.
4. the two sheath twin-core circular optical cable of one according to claim 1, is characterized in that: the aramid fiber reinforcement that described aramid fiber enhancement Layer (4) is high strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455643.0U CN204143014U (en) | 2014-08-13 | 2014-08-13 | A kind of two sheath twin-core circular optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455643.0U CN204143014U (en) | 2014-08-13 | 2014-08-13 | A kind of two sheath twin-core circular optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143014U true CN204143014U (en) | 2015-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420455643.0U Active CN204143014U (en) | 2014-08-13 | 2014-08-13 | A kind of two sheath twin-core circular optical cable |
Country Status (1)
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| CN (1) | CN204143014U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367810A (en) * | 2017-08-29 | 2017-11-21 | 广东亨通光电科技有限公司 | Flexible back bone formula MPO photoelectricity mixed packages optical cables and its production method |
| CN110648785A (en) * | 2019-10-29 | 2020-01-03 | 江苏亨通光电股份有限公司 | Novel photoelectric composite cable for indoor wireless distribution system and preparation method thereof |
-
2014
- 2014-08-13 CN CN201420455643.0U patent/CN204143014U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367810A (en) * | 2017-08-29 | 2017-11-21 | 广东亨通光电科技有限公司 | Flexible back bone formula MPO photoelectricity mixed packages optical cables and its production method |
| CN110648785A (en) * | 2019-10-29 | 2020-01-03 | 江苏亨通光电股份有限公司 | Novel photoelectric composite cable for indoor wireless distribution system and preparation method thereof |
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