CN2704055Y - Central beam tubular nonmetallic optical fiber cable - Google Patents
Central beam tubular nonmetallic optical fiber cable Download PDFInfo
- Publication number
- CN2704055Y CN2704055Y CN 200420022135 CN200420022135U CN2704055Y CN 2704055 Y CN2704055 Y CN 2704055Y CN 200420022135 CN200420022135 CN 200420022135 CN 200420022135 U CN200420022135 U CN 200420022135U CN 2704055 Y CN2704055 Y CN 2704055Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- optical fiber
- sheath
- reinforcement
- sleeve pipe
- 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
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Abstract
The utility model relates to a central bunched pipe type non-metal optical cable which is composed of optical fiber, a loose sleeve pipe, a reinforcing element and a sheath, wherein the loose sleeve pipe is arranged on the periphery of the optical fiber, the reinforcing element is arranged on the periphery of the loose sleeve pipe, and the sheath is arranged on the periphery of the reinforcing element. The reinforcing element is a non-metal reinforcing pipe which is composed of glass fiber, thermoplastic resin or hot melt resin, and the glass fiber is pasted into a round pipe by using the thermoplastic resin, particularly the hot melt resin. The pipe-shaped reinforcing element can be formed by that the glass fiber reinforcing pipe or a longitudinal covering glass fiber reinforcing belt is squeezed, and the glass fiber reinforcing belt is pasted into the round pipe by the heat of the sheath which is squeezed to play the functions of reinforcement and anti side pressure. The optical cable is the non-metal optical cable, and the structure is in a central bunched pipe type. The cost is reduced by 30 to 40% with the same core number, no iron material is provided, and the problem that iron oxidizes hydrogen evolution does not exist. The utility model avoids lightning stroke and can be used in the places with strong electromagnetic field. The weight is reduced by 50 to 60%, and the cross-sectional area is reduced nearly by 70%. The utility model dose not need to be added with other stop-water materials, and the water stopping performance is good.
Description
Technical field
The utility model relates to physical field, and chemical field relates in particular to optical element, particularly non-metallic optical fiber cables, and concrete is a kind of central beam tube type non-metallic optical fiber cables.
Background technology
In the prior art, one, with regard to the central beam tube type optical cable, it is made of optical fiber, loose sleeve pipe, reinforcement, composite steel-plastic belt, waterstop or water blocking yarn and sheath.The pine sleeve pipe is arranged on the periphery of optical fiber, and sheath is arranged on the most peripheral of optical cable, at the vertical Baogang of the periphery plastic composite strip of loose sleeve pipe, places water blocking yarn or waterstop, stranded again one deck phosphatization steel wire, and perhaps symmetrical parallel is placed two phosphatization steel wires in sheath.The cable jacket of this structure is thick, Heavy Weight, and cross-sectional area is big.Simultaneously,, can't use, and iron there be possibility of oxidation liberation of hydrogen, cause the hydrogen of optical fiber to roll in the place that has strong-electromagnetic field because it includes ferrous material.So, a lot of countries non-metallic optical fiber cables that adopt more.Two, with regard to non-metallic optical fiber cables, it is made of optical fiber, reinforcement and sheath.Its structure adopts layer-twisted type or skeleton usually, and the optical cable of these two kinds of structures need consume more material, and is when counting with core, higher by 30%～40% than central beam tube type optical cable cost.
Summary of the invention
Technical matters of the prior art to be solved in the utility model is: one, and in the prior art, non-metallic optical fiber cables is made of optical fiber, reinforcement and sheath.Reinforcement adopts the glass fiber reinforced plastics (FRP) of cylindrical shape usually, and FRP is arranged on the center of optical cable usually.Cable configuration adopts layer-twisted type or skeleton usually.The optical cable of these two kinds of structures need consume more material, and is when counting with core, higher by 30%～40% than central beam tube type optical cable cost.Two, in the prior art, the central beam tube type optical cable, sheath is thick, Heavy Weight, cross-sectional area is big; Because it includes ferrous material, can't use in the place that has strong-electromagnetic field, and iron has the possibility of oxidation liberation of hydrogen, cause hydrogen loss to optical fiber.
The utility model is that the technical scheme that solution above-mentioned technical matters of the prior art is adopted provides a kind of central beam tube type non-metallic optical fiber cables, and described this central beam tube type non-metallic optical fiber cables is made of optical fiber, loose sleeve pipe, reinforcement and sheath.Described loose sleeve pipe is arranged on the periphery of described optical fiber, and described reinforcement is arranged on the periphery of described loose sleeve pipe, and described sheath is arranged on the periphery of described reinforcement.Wherein, reinforcement is the tubulose reinforcement, and described loose sleeve pipe is arranged in the tube chamber of described tubulose reinforcement.
Further, described tubulose reinforcement is made of glass fibre and thermoplastic resin or hot-melt resin, utilizes thermoplastic resin, particularly hot-melt resin pipe that the bonding one-tenth of glass fibre is had certain intensity.Concrete, described tubulose reinforcement can or directly squeeze the glass fibre reinforced pipe by vertical bag glass fibre reinforcing band and form, and preferred scheme is vertical bag glass fibre reinforcing band, and the heat of sheath makes pipe of the bonding one-tenth of this reinforcing band when utilizing squeeze jacket.
Further, described optical fiber also can be fibre ribbon.
Further, the quantity of described glass fibre is more than two, the axially parallel that direction and described optical cable are set of described glass fibre.
The utility model and prior art contrast, and its effect is actively with tangible.The utility model has coated a nonmetal reinforced pipe outside the loose pipe box of optical fiber, play a part to strengthen and lateral pressure resistant; Its structure is a central beam tube type, compares with the non-metallic optical fiber cables of prior art, and when counting with core, its cost has reduced by 30%～40%, compares with the central beam tube type optical cable of prior art, and its cost has reduced by 5%～10%; In optical cable of the present utility model, do not have ferrous materials such as steel wire, steel band, do not have the problem of iron oxidation liberation of hydrogen; Use in the area of rainy many thunders, avoided the possibility of being struck by lightning, also can use in the place that has strong-electromagnetic field; The cryogenic property of optical cable is good, low temperature can not occur and shrink; Physical dimension of the present utility model is little, in light weight, compares with the non-metallic optical fiber cables of prior art, and its cross-sectional area reduces nearly 70%, weight saving nearly 50%, compare with the central beam tube type optical cable of prior art, it is nearly 70% that its cross-sectional area reduces, weight saving nearly 60%; And need not to add other material water-proof material, optical cable water-blocking is functional.
Description of drawings:
Fig. 1 is the structural representation of the utility model central beam tube type non-metallic optical fiber cables.
Embodiment:
As shown in Figure 1, the utility model central beam tube type non-metallic optical fiber cables is made of optical fiber or fibre ribbon 1, loose sleeve pipe 2, sheath 3 and reinforcement 4, described loose sleeve pipe 2 is arranged on the periphery of described optical fiber or fibre ribbon 1, described sheath 3 is arranged on the most peripheral of optical cable, be provided with tubulose reinforcement 4 between described sheath 3 and described loose sleeve pipe 2, described loose sleeve pipe 2 is arranged in the tube chamber of described tubulose reinforcement 4.
Further, described tubulose reinforcement 4 is made of glass fibre and thermoplastic resin or hot-melt resin.Utilize thermoplastic resin, particularly hot-melt resin pipe that the bonding one-tenth of glass fibre is had certain intensity.Concrete, described tubulose reinforcement 4 can or directly squeeze the glass fibre reinforced pipe by vertical bag glass fibre reinforcing band and form, preferred version is vertical bag glass fibre reinforcing band, and the heat of sheath makes pipe 4 with certain intensity of the bonding one-tenth of this reinforcing band when utilizing squeeze jacket 3.
Further, the quantity of described glass fibre is more than two, the axially parallel that direction and described optical cable are set of described glass fibre.
Claims (4)
1, a kind of central beam tube type non-metallic optical fiber cables, constitute by optical fiber, loose sleeve pipe, reinforcement and sheath, described loose sleeve pipe is arranged on the periphery of described optical fiber, described reinforcement is arranged on the periphery of described loose sleeve pipe, described sheath is arranged on the periphery of described reinforcement, it is characterized in that: the reinforcement that is provided with between described sheath and described loose sleeve pipe is the tubulose reinforcement, and described loose sleeve pipe is arranged in the tube chamber of described tubulose reinforcement.
2, central beam tube type non-metallic optical fiber cables according to claim 1 is characterized in that: described optical fiber is fibre ribbon.
3, central beam tube type non-metallic optical fiber cables according to claim 1 is characterized in that: described tubulose reinforcement is made of glass fibre and thermoplastic resin or hot-melt resin.
4, tubulose reinforcement according to claim 3 is characterized in that: the quantity of described glass fibre is more than two, the axially parallel that direction and described optical cable are set of described glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022135 CN2704055Y (en) | 2004-04-20 | 2004-04-20 | Central beam tubular nonmetallic optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420022135 CN2704055Y (en) | 2004-04-20 | 2004-04-20 | Central beam tubular nonmetallic optical fiber cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2704055Y true CN2704055Y (en) | 2005-06-08 |
Family
ID=34770232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420022135 Expired - Fee Related CN2704055Y (en) | 2004-04-20 | 2004-04-20 | Central beam tubular nonmetallic optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2704055Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794543A (en) * | 2019-11-28 | 2020-02-14 | 深圳市特发信息光电技术有限公司 | High-strength access optical cable and preparation method thereof |
-
2004
- 2004-04-20 CN CN 200420022135 patent/CN2704055Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110794543A (en) * | 2019-11-28 | 2020-02-14 | 深圳市特发信息光电技术有限公司 | High-strength access optical cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |