CN204143015U - The two sheath twin-core circular optical cable of high stability - Google Patents
The two sheath twin-core circular optical cable of high stability Download PDFInfo
- Publication number
- CN204143015U CN204143015U CN201420455650.0U CN201420455650U CN204143015U CN 204143015 U CN204143015 U CN 204143015U CN 201420455650 U CN201420455650 U CN 201420455650U CN 204143015 U CN204143015 U CN 204143015U
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- China
- Prior art keywords
- cable
- sheath
- aramid fiber
- oversheath
- filling
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- Expired - Lifetime
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- 230000003287 optical effect Effects 0.000 title claims abstract description 23
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 12
- 239000003063 flame retardant Substances 0.000 claims abstract description 11
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 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 description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 3
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The utility model discloses the two sheath twin-core circular optical cable of high stability, comprise oversheath (1) and two unit cables (2) and two fill cable (3), the inside of oversheath (1) is also provided with for support unit cable (2) and the aramid fiber reinforcement (4) of filling cable (3), unit cable (2) comprises optical fiber (5), tight sleeve layer (6), aramid fiber enhancement Layer (7) and inner sheath (8), fills cable (3) and comprises aramid fiber filling member (9) and fill cable sheath (10).The beneficial effects of the utility model are: intensity is high, guarantee that Optical Fiber Transmission is steady in a long-term; Little, lightweight, fire-retardant, the easy stripping of the utility model external diameter, decay little, and there is high flexibility; Optical cable construction operation, easy to maintenance, also containing reinforcing element in every root unit cable, further increase structural stability, and every root unit line can use the direct termination of standard connector.
Description
Technical field
The utility model relates to communications optical cable technical field, particularly the two sheath twin-core circular optical cable of a kind of high stability.
Background technology
Along with informationalized development, the conveying capacity of information increases rapidly, and optical fiber cable obtains a large amount of application.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.
Along with the application quantity of optical fiber cable and the continuous increase of range of application, the environment for use of optical cable also becomes varied.When optical cable is applied to the poor place of environment, the place as large in wind, the temperature difference is large, electromagnetic interference (EMI) is strong, use middle optical cable to be subject to random torsion for a long time, optical fiber easily ruptures or cracks, and causes optical fiber cisco unity malfunction.And for example when fiber optic applications during signal transmission, can run into the operating mode of alternating bending equally on equipment.Existing optical cable can not be applicable to above-mentioned operating mode, how to improve the tensile property of optical cable and bending, distortion performance, becomes the main difficult technical widening the optical cable scope of application.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provides that a kind of intensity is high, transmission is steady in a long-term and has the two sheath twin-core circular optical cable of high stability of high flexibility.
The purpose of this utility model is achieved through the following technical solutions: the two sheath twin-core circular optical cable of high stability, two the unit cables comprising oversheath and be arranged in oversheath and two filling cables, the circumferentially interval setting in oversheath inside of unit cable and filling cable, oversheath is tightly placed in the outside of two unit cables and two filling cables, the inside of oversheath is also provided with for support unit cable and the aramid fiber reinforcement of filling cable, described unit cable wrap draws together optical fiber, closely be set in the tight sleeve layer of outer fiber, closely be arranged at the aramid fiber enhancement Layer of tight sleeve layer outside and be closely set in the inner sheath of aramid fiber enhancement Layer outside, described filling cable wrap is drawn together columniform aramid fiber filling member and is set in the filling cable sheath of aramid fiber filling member outside.
Described aramid fiber reinforcement is filled in oversheath.
Described aramid fiber reinforcement be arranged at oversheath center cylindrical aramid fiber post and be arranged at aramid fiber reinforcing sleeve in oversheath, two unit cables and two fill the inside that cable is all arranged at aramid fiber reinforcing sleeve.
Described inner sheath, filling cable sheath are low-smoke halogen-free flame-retardant sheath.
Described oversheath is low-smoke halogen-free flame-retardant sheath, PVC sheath or polyurethane jacket.
The utility model has the following advantages: the utility model adopts aramid fiber reinforcement, and intensity is high, guarantees that Optical Fiber Transmission is steady in a long-term; Little, lightweight, fire-retardant, the easy stripping of the utility model external diameter, decay little, and there is high flexibility; Optical cable construction operation, easy to maintenance, also containing reinforcing element in every root unit cable, further increase structural stability, and every root unit line can use the direct termination of standard connector.The utility model intensity is high, high anti-twist, can load-bearing, flexibility good, adopt low-smoke halogen-free flame-retardant sheath, security is good.Adopt polyurethane oversheath that optical cable can be made to have the features such as excellent fire-retardant, resistance to compression, anti-wear performance, broad serviceability temperature scope.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model
Fig. 2 is another kind of structural representation of the present utility model
In figure, 1-oversheath, 2-unit cable, 3-fills cable, 4-aramid fiber reinforcement, 5-optical fiber, 6-tight sleeve layer, 7-aramid fiber enhancement Layer, 8-inner sheath, 9-aramid fiber filling member, and 10-fills cable sheath, 11-aramid fiber post, 12-aramid fiber reinforcing sleeve.
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, the two sheath twin-core circular optical cable of high stability, comprise oversheath 1 and fill cables 3 with two the unit cables 2 be arranged in oversheath 1 and two, the circumferentially interval setting in oversheath 1 inside of unit cable 2 and filling cable 3, oversheath 1 is tightly placed in the outside of two unit cables 2 and two filling cables 3, the inside of oversheath 1 is also provided with for support unit cable 2 and the aramid fiber reinforcement 4 of filling cable 3, described unit cable 2 comprises optical fiber 5, closely be set in the tight sleeve layer 6 of optical fiber 5 outside, closely be arranged at the aramid fiber enhancement Layer 7 of tight sleeve layer 6 outside and be closely set in the inner sheath 8 of aramid fiber enhancement Layer 7 outside, described filling cable 3 comprises columniform aramid fiber filling member 9 and is set in the filling cable sheath 10 of aramid fiber filling member 9 outside.
As shown in Figure 1, if the external diameter of described unit cable 2 is greater than the external diameter of filling cable 3, then described aramid fiber reinforcement 4 is filled in oversheath 1.
As shown in Figure 2, if the external diameter of described unit cable 2 equals the external diameter of filling cable 3, then described aramid fiber reinforcement 4 for be arranged at the cylindrical aramid fiber post 10 at oversheath 1 center and aramid fiber reinforcing sleeve 10, two the unit cables 2 be arranged in oversheath 1 and two fill the inside that cable 3 is all arranged at aramid fiber reinforcing sleeve 10.
Described inner sheath 8, filling cable sheath 10 are low-smoke halogen-free flame-retardant sheath, and it adopts LSZH material.
Described oversheath 1 is low-smoke halogen-free flame-retardant sheath, low temperature resistant PVC sheath or polyurethane jacket.
The utility model makes tight tube fiber 5 at single mode or the outer direct tight cover material coated with high bond strength of multimode optical fiber 5, tight tube fiber 5 adopts the aramid fiber of high strength as reinforcing element, and extrudes one deck LSZH inner sheath 8(low-smoke halogen-free flame-retardant sheath in outside) make unit cable 2; Filling cable 3 adopts the aramid fiber of high strength as reinforcing element, and extrudes one deck LSZH sheath in outside and make.
Claims (5)
1. the two sheath twin-core circular optical cable of high stability, it is characterized in that: comprise oversheath (1) and two unit cables (2) being arranged in oversheath (1) and two fill cable (3), unit cable (2) and filling cable (3) be circumferentially interval setting in oversheath (1) inside, oversheath (1) is tightly placed in the outside of two unit cables (2) and two fillings cable (3), the inside of oversheath (1) is also provided with for support unit cable (2) and the aramid fiber reinforcement (4) of filling cable (3), described unit cable (2) comprises optical fiber (5), closely be set in the tight sleeve layer (6) that optical fiber (5) is outside, closely be arranged at the outside aramid fiber enhancement Layer (7) of tight sleeve layer (6) and be closely set in the outside inner sheath (8) of aramid fiber enhancement Layer (7), described filling cable (3) comprises columniform aramid fiber filling member (9) and is set in the outside filling cable sheath (10) of aramid fiber filling member (9).
2. the two sheath twin-core circular optical cable of high stability according to claim 1, is characterized in that: described aramid fiber reinforcement (4) is filled in oversheath (1).
3. the two sheath twin-core circular optical cable of high stability according to claim 1, it is characterized in that: described aramid fiber reinforcement (4) is the cylindrical aramid fiber post (10) that is arranged at oversheath (1) center and the aramid fiber reinforcing sleeve (10) be arranged in oversheath (1), two unit cables (2) and two fill the inside that cable (3) is all arranged at aramid fiber reinforcing sleeve (10).
4. the two sheath twin-core circular optical cable of high stability according to claim 1, is characterized in that: described inner sheath (8), filling cable sheath (10) are low-smoke halogen-free flame-retardant sheath.
5. the two sheath twin-core circular optical cable of high stability according to claim 1, is characterized in that: described oversheath (1) is low-smoke halogen-free flame-retardant sheath, PVC sheath or polyurethane jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455650.0U CN204143015U (en) | 2014-08-13 | 2014-08-13 | The two sheath twin-core circular optical cable of high stability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420455650.0U CN204143015U (en) | 2014-08-13 | 2014-08-13 | The two sheath twin-core circular optical cable of high stability |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204143015U true CN204143015U (en) | 2015-02-04 |
Family
ID=52419695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420455650.0U Expired - Lifetime CN204143015U (en) | 2014-08-13 | 2014-08-13 | The two sheath twin-core circular optical cable of high stability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204143015U (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 |
| CN107436468A (en) * | 2017-09-01 | 2017-12-05 | 长飞光纤光缆股份有限公司 | A kind of twin-core stealth leading in cable |
-
2014
- 2014-08-13 CN CN201420455650.0U patent/CN204143015U/en not_active Expired - Lifetime
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 |
| CN107436468A (en) * | 2017-09-01 | 2017-12-05 | 长飞光纤光缆股份有限公司 | A kind of twin-core stealth leading in 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 |
Granted publication date: 20150204 |
|
| CX01 | Expiry of patent term |