CN204178016U - A kind of single sheath pipe core optical fiber cable for direct burial - Google Patents
A kind of single sheath pipe core optical fiber cable for direct burial Download PDFInfo
- Publication number
- CN204178016U CN204178016U CN201420476963.4U CN201420476963U CN204178016U CN 204178016 U CN204178016 U CN 204178016U CN 201420476963 U CN201420476963 U CN 201420476963U CN 204178016 U CN204178016 U CN 204178016U
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- loose tube
- sheath
- pipe core
- steel wire
- 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
Links
Abstract
A kind of single sheath pipe core optical fiber cable for direct burial, comprise optical fiber, Loose tube, be filled with fine cream in described Loose tube, described optical fiber is dipped in the fine cream in described Loose tube.Described Loose tube is wrapped with one deck armouring tape, and described armouring tape outer wrapping sheath, is inlaid with steel wire in described sheath.Optical fiber has enough activity spaces in Loose tube.The utility model originally decreases the sheath number of plies, decreases manufacturing process, thus reduces raw-material expending, and improves the quantum of output of product.By changing cable configuration, ensure that the compressive resistance of optical cable.
Description
Technical field
The utility model relates to a kind of optical fiber cable for direct burial, is specially a kind of single sheath pipe core optical fiber cable for direct burial.
Background technology
Current optical cable if desired directly buried installation, opposite side pressure requires high, and therefore optical cable usually adopts multiple sheath, is generally PBT sleeve pipe parcel light unit, armouring tape outside it, the tygon inner sheath of armouring tape outer wrapping steel wire bonding, then mould outer protective polyethylene cover at outer layer covers steel, such shortcoming is: two-layer sheath increases manufacturing process, cause processing trouble, reduce finished product quantum of output, consume material, increase cost of products.
Summary of the invention
In order to the manufacturing procedure overcoming existing optical fiber cable for direct burial is many, consume material, the deficiency that production cost is high, the utility model provides a kind of single sheath pipe core direct-burried optical fiber.
The technical scheme in the invention for solving the technical problem is: a kind of single sheath pipe core optical fiber cable for direct burial, comprise optical fiber, Loose tube, be filled with fine cream in described Loose tube, described optical fiber is dipped in the fine cream in described Loose tube.Described Loose tube is wrapped with one deck armouring tape, and described armouring tape outer wrapping sheath, is inlaid with steel wire in described sheath.Optical fiber has enough activity spaces in Loose tube.
Further, described Loose tube inside diameter is greater than more than 3 times of described fibre diameter, and described steel wire quantity is no less than one.Ensure optical fibre space, prevent that external pressure is excessive causes optical fibre damage.As preferably, described steel wire quantity is two, and described steel wire is positioned at optical cable both sides.
Further, described sheath adopts polythene material, and described Loose tube is PBT Loose tube.Described sheath adopts integrated injection moulding with inner steel wire.
The utility model in use, by reducing the number of plies of sheath, reaching and reducing manufacturing process, reduce consumptive material, improve quantum of output.By change structure, make optical fiber inside Loose tube, have very large activity space, and reach requirement of withstand voltage, even if sheath is extruded distortion, can not internal optical fiber be affected in a certain degree.
The beneficial effects of the utility model are: decrease the sheath number of plies, decrease manufacturing process, thus reduce raw-material expending, and improve the quantum of output of product.By changing cable configuration, ensure that the compressive resistance of optical cable.
Accompanying drawing explanation
Fig. 1 is the utility model three-dimensional structure diagram.
Fig. 2 is the utility model cut-open view.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As Fig. 1, shown in 2, a kind of single sheath pipe core optical fiber cable for direct burial, comprise optical fiber 1, Loose tube 2, be filled with fine cream 3 in described Loose tube 2, described optical fiber 1 is dipped in the fine cream 3 in described Loose tube 2.Described Loose tube 2 is wrapped with one deck armouring tape 4, and described armouring tape 4 is wrapped with sheath 6, is inlaid with steel wire 5 in described sheath.Optical fiber has enough activity spaces in Loose tube.
In the present embodiment, described Loose tube 2 inside diameter is greater than more than 3 times of described optical fiber 1 diameter, ensures optical fiber 1 activity space, prevents the excessive optical fiber 1 that causes of external pressure from damaging.Described steel wire quantity is no less than one, and as preferably, described steel wire quantity is two, and described steel wire is positioned at optical cable both sides.
In the present embodiment, described sheath 6 adopts polythene material, and described Loose tube 2 is PBT Loose tube.Described sheath 6 adopts integrated injection moulding with inner steel wire 5.
The utility model in use, by reducing the number of plies of sheath 6, reaching and reducing manufacturing process, reduce consumptive material, improve quantum of output.By change structure, make optical fiber 1 have very large activity space inside Loose tube 2, and reach requirement of withstand voltage, even if sheath 6 is extruded distortion, can not internal optical fiber be affected in a certain degree.
The beneficial effects of the utility model are: decrease sheath 6 number of plies, decrease manufacturing process, thus reduce raw-material expending, improve the quantum of output of product.By changing cable configuration, ensure that the compressive resistance of optical cable.
Claims (2)
1. a single sheath pipe core optical fiber cable for direct burial, comprise optical fiber, Loose tube, fine cream is filled with in described Loose tube, described optical fiber is dipped in the fine cream in described Loose tube, it is characterized in that: described Loose tube is wrapped with one deck armouring tape, described armouring tape outer wrapping sheath, is inlaid with steel wire in described sheath; Described Loose tube inside diameter is greater than more than 3 times of described fibre diameter, and described steel wire quantity is no less than one.
2. single sheath pipe core optical fiber cable for direct burial as claimed in claim 1, is characterized in that: described sheath adopts polythene material, and described sheath adopts integrated injection moulding with inner steel wire; Described Loose tube is PBT Loose tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420476963.4U CN204178016U (en) | 2014-08-23 | 2014-08-23 | A kind of single sheath pipe core optical fiber cable for direct burial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420476963.4U CN204178016U (en) | 2014-08-23 | 2014-08-23 | A kind of single sheath pipe core optical fiber cable for direct burial |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178016U true CN204178016U (en) | 2015-02-25 |
Family
ID=52566821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420476963.4U Expired - Fee Related CN204178016U (en) | 2014-08-23 | 2014-08-23 | A kind of single sheath pipe core optical fiber cable for direct burial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204178016U (en) |
-
2014
- 2014-08-23 CN CN201420476963.4U patent/CN204178016U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20200823 |