CN2739652Y - Longitudinal wrapped reinforced belt for optical cable - Google Patents
Longitudinal wrapped reinforced belt for optical cable Download PDFInfo
- Publication number
- CN2739652Y CN2739652Y CN 200420107477 CN200420107477U CN2739652Y CN 2739652 Y CN2739652 Y CN 2739652Y CN 200420107477 CN200420107477 CN 200420107477 CN 200420107477 U CN200420107477 U CN 200420107477U CN 2739652 Y CN2739652 Y CN 2739652Y
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- CN
- China
- Prior art keywords
- optical cable
- reinforcing band
- indulging
- bag reinforcing
- described flexible
- 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 provides a longitudinal wrapped reinforced belt for optical cables, composed of a plurality of glass fibers. The fibers are uniformly arranged in a flexible ribbon. The extending direction of the fibers is identical to that of the flexible ribbon. The cross-section of the flexible ribbon is rectangular or is approximate to a rectangle. The surface of at least one side of the flexible ribbon is provided with a hot melt adhesive coating. The flexible ribbon can be composed of a plurality of thermoplastic resin layers. At least one glass fiber reinforced plastic or steel wire is positioned in the flexible ribbon. During the working process of optical cables, the utility model can be directly longitudinally wrapped on the loose casing tubes or the cable cores. Then the external casing can be directly compressed, and a sealed circular tube is formed by means of the heat of the sheath; thus the utility model has the advantages of high reinforcement, side pressure resistance, low cost, super low-temperature properties of optical cables, and high roundness of shapes of optical cables; the problems of iron oxidation and hydrogen separation can not occur, contraction in low temperature can not occur, and lightning stroke can be prevented when in use in pluvial and thundery areas.
Description
Technical field
The utility model relates to the optical cable reinforcement, relates in particular to the vertical packaging material material of optical cable, and particularly a kind of optical cable is with indulging bag glass fibre reinforcing band.
Background technology
In the prior art, non-metallic optical fiber cables adopts the tubular FRP (glass fiber reinforced plastics) of rigidity as its reinforcement usually, its structure is layer-twisted type or skeleton construction, the optical cable of layer-twisted type and skeleton construction all needs to consume more cable material, and higher by 30%～40% than central beam tube type optical cable cost; And traditional central beam tube type optical cable is placed waterstop or water blocking yarn outside loose sleeve pipe, and vertical again Baogang plastic composite strip is placed parallel phosphatization steel wire in sheath; In addition, inside cable adopts fragrant human relations as reinforcement usually, but the price comparison costliness of fragrant human relations.
Summary of the invention
Technical matters of the prior art to be solved in the utility model is: because in the present technology, non-metallic optical fiber cables adopts the tubular FRP (glass fiber reinforced plastics) of rigidity as its reinforcement usually, its structure is layer-twisted type or skeleton construction, the optical cable of layer-twisted type and skeleton construction all needs to consume more cable material, and higher by 30%～40% than central beam tube type optical cable cost; Traditional central beam tube type optical cable is placed waterstop or water blocking yarn outside loose sleeve pipe, vertical again Baogang plastic composite strip is placed parallel phosphatization steel wire in sheath, owing to adopt ferrous material, the possibility of oxidation liberation of hydrogen is arranged; Again because of in sheath, having placed parallel steel wire, jacket thickness is increased, Heavy Weight, physical dimension are big; In addition, inside cable adopts fragrant human relations as reinforcement usually, but the price comparison costliness of fragrant human relations, the cost height.
The utility model provides a kind of optical cable with indulging the bag reinforcing band for solving the technical scheme that the problems referred to above adopted that exists in the prior art, described this optical cable is made of the complex root fiber with indulging the bag reinforcing band, wherein, described complex root fiber evenly is arranged in the flexible shoestring, the bearing of trend of described complex root fiber is identical with the bearing of trend of described flexible shoestring, the xsect of described flexible shoestring is rectangular or approximate rectangular, and the surface of at least one side of described flexible shoestring is provided with a hot melt adhesive coating.
Further, described flexible shoestring is made of two-layer at least thermoplastic resins, wherein the hardness of one deck thermoplastic resins is greater than the hardness of another layer thermoplastic resins, described complex root fiber evenly is arranged in the described thermoplastic resin, and the interphase between the adjacent arbitrarily two layers of thermoplastic resin is parallel or approaching parallel with the upper and lower sides surface of described flexible shoestring.
Further, described complex root fiber is glass fibre or fragrant human relations formation or their potpourri.
Further, in described flexible shoestring, be provided with at least one diameter or thickness and be less than or equal to the circle of described flexible shoestring thickness or the reinforcement of ellipse or rectangle, the reinforcement of described circle or ellipse or rectangle be provided with direction and described complex root fiber that direction is set is parallel.
Further, the reinforcement of described circle or ellipse or rectangle is Fibreglass Reinforced Plastics (FRP) or steel wire.
Further, the thickness of described flexible shoestring is between 0.2mm～6mm, and the width of described flexible shoestring is between 2mm～120mm.
Further, the quantity of described complex root fiber is at least 2.
Further, described optical cable with the xsect that can indulge the bag reinforcing band in, the area sum of the xsect of described complex root fiber accounts for described optical cable with 80%～97% of the cross-sectional area that can indulge the bag reinforcing band.
Further, in described flexible shoestring, any described thermoplastic resins of one deck, its hardness is even.
Further, described flexible shoestring has the surface of one or two or three or four sides to be respectively arranged with a hot melt adhesive coating.
Principle of work of the present utility model is: in optical cable processing, outside optical fiber or loose sleeve pipe or cable core, directly optical cable of the present utility model is indulged bag with indulging the bag reinforcing band, directly squeeze oversheath again, utilize the sheath heat to make optical cable of the present utility model with indulging the pipe that the bag reinforcing band forms sealing, play and strengthen and the lateral pressure resistant effect, in this process, optical cable helps optical cable with indulging the pipe that the bag reinforcing band forms sealing with the hot melt adhesive coating that can indulge bag reinforcing band surface.
The utility model and prior art compare, and its effect is actively with tangible.Utilize the utility model optical cable with indulging the outdoor optical cable that the vertical bag of bag reinforcing band is produced, its structure can be that central beam tube type also can be a layer-twisted type, if steel wire is not set in reinforcing band, its kind belongs to non-metallic optical fiber cables, and cost has reduced by 30%～40%.In addition, compare,, do not have the problem of iron oxidation liberation of hydrogen because of there not being ferrous materials such as steel wire, steel band in the optical cable with traditional central beam tube type optical cable; The cryogenic property of optical cable is good, low temperature can not occur and shrink; Use at rainy multi-thunder area, avoided thunderstruck possibility; Physical dimension is little, in light weight.With regard to non-metallic optical fiber cables, it is nearly 70% that the optical cable that adopts the utility model to produce, cross-sectional area dwindle, weight saving nearly 50%; Compare with traditional central beam tube type optical cable, it is nearly 60% that the optical cable that adopts the utility model to produce, cross-sectional area dwindle, weight saving nearly 60%.And, need not to add other material water-proof material, the optical cable water penetration test is qualified.The inside cable of producing like this, because of need not fragrant human relations, cost be low by about 30%, and the external form of optical cable is rounding more.
Description of drawings
Fig. 1 is that a kind of optical cable of the utility model is with indulging the structural representation that wraps reinforcing band.
Fig. 2 is the structural representation of a kind of optical cable of the utility model with the xsect of an embodiment that can indulge the bag reinforcing band.
Fig. 3 is the structural representation of a kind of optical cable of the utility model with the xsect of another embodiment that can indulge the bag reinforcing band.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, a kind of optical cable of the utility model is with indulging the bag reinforcing band, constitute by complex root fiber 1, wherein, described complex root fiber 1 evenly is arranged in the flexible shoestring 2, the bearing of trend of described complex root fiber 1 is identical with the bearing of trend of described flexible shoestring 2, and the xsect of described flexible shoestring 2 is rectangular or approximate rectangular, and described flexible shoestring 2 has at least the surface of a side to be provided with a hot melt adhesive coating 3.
In as Fig. 1, Fig. 2 and two preferred embodiments of the present utility model shown in Figure 3, the surface of four sides of described flexible shoestring 2 is provided with a hot melt adhesive coating 3 respectively.
Further, described flexible shoestring 2 is made of two layers or multilayer thermoplastic resin, and every layer of thermoplastic resin has identical hardness but have different hardness between every layer of thermoplastic resin.Interphase between the adjacent two layers of thermoplastic resin is parallel with the upper and lower sides surface of described flexible shoestring 2.
In a preferred embodiment of the present utility model as shown in Figure 3, in described flexible shoestring 2, be provided with the reinforcement 4 of one or more diameter less than described flexible shoestring 2 thickness, described reinforcement 4 be provided with direction and described complex root fiber 1 that direction is set is parallel.
The thickness of described flexible shoestring 2 is between 0.2mm～6mm, and the width of described flexible shoestring 2 is between 2mm～120mm.
The quantity of described complex root fiber 1 is at least 2.
In the xsect of described flexible shoestring 2, the area sum of the xsect of described complex root fiber 1 accounts for described optical cable with indulging 80%～97% of bag reinforcing band cross-sectional area.
Claims (10)
1. an optical cable is with indulging the bag reinforcing band, constitute by the complex root fiber, it is characterized in that: described complex root fiber evenly is arranged in the flexible shoestring, the bearing of trend of described complex root fiber is identical with the bearing of trend of described flexible shoestring, the xsect of described flexible shoestring is rectangular or approximate rectangular, and the surface of at least one side of described flexible shoestring is provided with a hot melt adhesive coating.
2. optical cable as claimed in claim 1 is with indulging the bag reinforcing band, it is characterized in that: described flexible shoestring is made of two-layer or two-layer above thermoplastic resins, wherein the hardness of one deck thermoplastic resins is greater than the hardness of another layer thermoplastic resins, described complex root fiber evenly is arranged in the described thermoplastic resin, and the interphase between the adjacent arbitrarily two layers of thermoplastic resin is parallel or approaching parallel with the upper and lower sides surface of described flexible shoestring.
3. optical cable as claimed in claim 1 is characterized in that with indulging the bag reinforcing band: described complex root fiber is glass fibre or fragrant human relations or their potpourri.
As claim 1 or 2 or 3 described optical cables with indulging the bag reinforcing band, it is characterized in that: in described flexible shoestring, be provided with at least one diameter or thickness and be less than or equal to the circle of described flexible shoestring thickness or the reinforcement of ellipse or rectangle, the reinforcement of described circle or ellipse or rectangle be provided with direction and described complex root fiber that direction is set is parallel.
5. optical cable as claimed in claim 4 is characterized in that with indulging the bag reinforcing band: the reinforcement of described circle or ellipse or rectangle is Fibreglass Reinforced Plastics or steel wire.
6. optical cable as claimed in claim 1 is characterized in that with indulging the bag reinforcing band: the thickness of described flexible shoestring is between 0.2mm～6mm, and the width of described flexible shoestring is between 2mm～120mm.
7. optical cable as claimed in claim 2 is characterized in that with indulging the bag reinforcing band: the quantity of described complex root fiber is at least 2.
8. optical cable as claimed in claim 3 is with indulging the bag reinforcing band, it is characterized in that: described optical cable with the xsect that can indulge the bag reinforcing band in, the area sum of the xsect of described complex root fiber accounts for described optical cable with 80%～97% of the cross-sectional area that can indulge the bag reinforcing band.
9. optical cable as claimed in claim 2 is characterized in that with indulging the bag reinforcing band: any described thermoplastic resins of one deck, its hardness is even.
10. optical cable as claimed in claim 1 is characterized in that with indulging the bag reinforcing band: described flexible shoestring has the surface of one or two or three or four sides to be respectively arranged with a hot melt adhesive coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107477 CN2739652Y (en) | 2004-10-21 | 2004-10-21 | Longitudinal wrapped reinforced belt for optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420107477 CN2739652Y (en) | 2004-10-21 | 2004-10-21 | Longitudinal wrapped reinforced belt for optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739652Y true CN2739652Y (en) | 2005-11-09 |
Family
ID=35354718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420107477 Expired - Fee Related CN2739652Y (en) | 2004-10-21 | 2004-10-21 | Longitudinal wrapped reinforced belt for optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739652Y (en) |
-
2004
- 2004-10-21 CN CN 200420107477 patent/CN2739652Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051109 Termination date: 20121021 |