CN2685905Y - Metal armoured indoor soft optical cable - Google Patents
Metal armoured indoor soft optical cable Download PDFInfo
- Publication number
- CN2685905Y CN2685905Y CN 200320114232 CN200320114232U CN2685905Y CN 2685905 Y CN2685905 Y CN 2685905Y CN 200320114232 CN200320114232 CN 200320114232 CN 200320114232 U CN200320114232 U CN 200320114232U CN 2685905 Y CN2685905 Y CN 2685905Y
- Authority
- CN
- China
- Prior art keywords
- optical cable
- resistance
- utility
- tightly packaged
- flexible metal
- 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 soft metal armoured indoor soft optical cable with strong bearing resistance, tensile resistance, shearing resistance and flexibility. The utility model additionally sleeves a spring flexible metal conduit out of 900um tightly packaged fiber; an aramid fiber yarn is added around the flexible metal conduit, and a plastic rubber covering layer is over the last out layer. The spring flexible metal conduit bending easily has higher bearing resistance and shearing resistance; the aramid fiber yarn has better tensile resistance; the plastic rubber covering layer can be effective water proof and protect inner structure.
Description
Affiliated technical field
The utility model relates to a kind of optical fiber cable of light conducting signal, especially a kind of indoor flexible optical cable that the metal armouring layer is arranged.
Background technology
At present, general indoor flexible optical cable is after adding one aramid yarn around one or more 900um tightly packaged fiber, adds the coating of one deck plastic cement outside again and constitutes.The 900um tightly packaged fiber plays the light conducting signal, and aramid yarn has advantages of higher tensile strength, and its existence makes indoor flexible optical cable have good tensile property, the effective waterproof of outer field plastic cement coating, and can cushion external force, the protection endothecium structure is avoided infringement.But fragile because of the 900um tightly packaged fiber, and the plastic cement coating layer lateral pressure resistant and the shear strength of indoor flexible optical cable are lower, when running into that the people steps on and during damage of external force such as damaged by rats, very easily causing fibercuts, interrupt optical signal transmission.
Summary of the invention
In order to overcome existing indoor flexible optical cable compressive strength and the low deficiency of shear strength, the utility model provides a kind of metal armouring indoor flexible optical cable, it not only has good tensile strength, the bent characteristic of soft pliable, also have higher compression and shear strength, improved the ability of optical cable opposing outside destroy.
The technical scheme that its technical matters that solves the utility model adopts is: at spring-like metal hose of 900um tightly packaged fiber overcoat, metal hose adds the coating of one deck plastic cement after adding one aramid yarn on every side more outside.The spring-like metal hose can be arbitrarily crooked, but lateral pressure resistant and shear strength height, aramid yarn has advantages of higher tensile strength, and the plastic cement coating layer is waterproof effectively, and plays the effect of buffering external force, effectively protects endothecium structure.When optical cable is subjected to stepping on or during outside destroy such as damaged by rats, the optical fiber in the middle of the spring-like metal hose can effectively be protected is without prejudice such as the people.
The beneficial effects of the utility model are: make indoor flexible optical cable have compressive strength and shear strength preferably, and can keep the bent characteristic of soft pliable and the good tensile strength of optical cable, protect optical fiber not to be subjected to outside destroy better.
Description of drawings:
The utility model is further specified from example below in conjunction with accompanying drawing and enforcement.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the I-I cut-open view of Fig. 1.
Among the figure, 1.900um tightly packaged fiber, 2. spring-like metal hose, 3. aramid yarn, 4. plastic cement coating layer
Embodiment:
In Fig. 1,900um tightly packaged fiber (1) is outer to be with a spring-like metal hose (2), and metal hose (2) is added with one aramid yarn (3) on every side, and outermost layer is plastic cement coating (4).Spring-like metal hose (2) internal diameter should be bigger slightly than the diameter of 900um tightly packaged fiber (1), so that optical fiber can be contained in the centre.
Claims (2)
1. an indoor flexible optical cable is adding a plastic cement coating protective seam again after one or more 900um tightly packaged fiber adds one aramid yarn on every side, and it is characterized in that: the 900um tightly packaged fiber has a metal hose protective layer structure outward.
2. the indoor flexible optical cable of metal armouring according to claim 1 is characterized in that: the 900um tightly packaged fiber adds a spring-like metal hose, is adding the coating of one deck plastic cement again after the spring-like metal hose adds one aramid yarn on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114232 CN2685905Y (en) | 2003-11-23 | 2003-11-23 | Metal armoured indoor soft optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320114232 CN2685905Y (en) | 2003-11-23 | 2003-11-23 | Metal armoured indoor soft optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2685905Y true CN2685905Y (en) | 2005-03-16 |
Family
ID=34661793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320114232 Expired - Fee Related CN2685905Y (en) | 2003-11-23 | 2003-11-23 | Metal armoured indoor soft optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2685905Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102298990A (en) * | 2011-06-01 | 2011-12-28 | 江苏中煤电缆股份有限公司 | Towing resistance rubber flexible cable with flexibility reinforcement structure |
| CN101776796B (en) * | 2009-01-13 | 2015-06-10 | Hoya株式会社 | Scanning endoscope |
-
2003
- 2003-11-23 CN CN 200320114232 patent/CN2685905Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776796B (en) * | 2009-01-13 | 2015-06-10 | Hoya株式会社 | Scanning endoscope |
| CN102298990A (en) * | 2011-06-01 | 2011-12-28 | 江苏中煤电缆股份有限公司 | Towing resistance rubber flexible cable with flexibility reinforcement structure |
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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: 20050316 Termination date: 20101123 |