CN201051166Y - Enhanced indoor and outdoor armored soft optical cable - Google Patents
Enhanced indoor and outdoor armored soft optical cable Download PDFInfo
- Publication number
- CN201051166Y CN201051166Y CNU2007200398688U CN200720039868U CN201051166Y CN 201051166 Y CN201051166 Y CN 201051166Y CN U2007200398688 U CNU2007200398688 U CN U2007200398688U CN 200720039868 U CN200720039868 U CN 200720039868U CN 201051166 Y CN201051166 Y CN 201051166Y
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Abstract
The utility model discloses a reinforced indoor-outdoor armored flexible cable, comprising a protective external casing and optical fiber lines installed inside the external casing. The protective external casing includes a reinforced element layer, a flexible tube layer, a braiding layer and a protective sleeve layer. The utility model is characterized in that the reinforced element layer is coated in the external of the flexible tube layer, the braiding layer is sleeved in the external of the reinforced element layer, and the protective sleeve layer is coated in the external of the braiding layer. The utility model realizes more reliable and stable effect in the transmission of the optical fiber signals as well as ensuring the advantages of high pull resistance, torsion resistance, compression prevention, impact resistance and the like by the structure of the basic protective external casing which is composed by the flexible tube layer + the reinforced element layer + braiding layer and the protective sleeve layer.
Description
Technical field
The utility model relates to a kind of photocon, is specifically related to a kind of indoor and outdoor armoured soft optical cable that tensile strength and outer protection are provided for light transmitting fiber.
Background technology
Utilizing the optical fiber communication of light transmitting fiber as the transmission medium of light, why can obtain develop rapidly in decades at this, is owing to it has (1) transmission frequency bandwidth, message capacity is big; (2) decay is little; (3) not determined by outstanding advantages such as electromagnetic interference (EMI), but the defective that the quality of optical fiber own is crisp, physical strength is low requires it to constitute optical cable at outer suit protecting sheathing, so that for it provides mechanical protection, basic demand to protecting sheathing is: guarantee make, lay, optical fiber does not rupture in the use, and suffered stress is little; Must in manufacture process, keep the original transmission performance of optical fiber, and guarantee that optical fiber transmission performance in long-term use is reliable and stable.
A kind of as in the optical cable of indoor and outdoor armoured soft optical cable; has the good performance that deflects; existing basic composition structure is: be made up of optical fiber cable that is positioned at the optical cable center and protecting sheathing; draw (aramid fiber), metal hose, metal knitted net, outer plastic cement to form at described housing parts by triumphant inspiring confidence in; described triumphant inspiring confidence in draws skin to be with metal hose; the skin of metal hose is with metal knitted net, and the skin of metal knitted net is coated with plastic cement.Wherein, triumphantly inspire confidence in that to draw (aramid fiber) be a kind of aromatic polyamide fibre, stranded or the collimated beam one-tenth by many filaments, because filament is the numberator height orientation during fabrication, having high Young modulus, is a kind of nonmetal strength members (bearing the element of load in the optical cable specially) material that generally uses in the fiber optic cable production.
Yet, as mentioned above in the shell mechanism, triumphantly inspire confidence in stretching connecing and be wrapped in outside the optical fiber cable, find in actual the use, after optical cable is subjected to turning round of external force and draws, impacts, draw and to bend by triumphant the inspiring confidence in that filaments bundles becomes, and because of the mechanical stress of optical fiber own is lower, be easy under extruding force, optical fiber surface be scratched or cause wearing and tearing, make signal relaxation phenomenon occur, limit the length of the optical cable in the actual use thus, repeated to lay the transmission that use then can have influence on fiber-optic signal.
Summary of the invention
The utility model purpose provides that a kind of loss is little, transmission performance is stable has high tensile, antitorque, resistance to compression, shock proof indoor and outdoor armoured soft optical cable simultaneously.
For achieving the above object; the technical solution adopted in the utility model is: a kind of reinforced indoor and outdoor armoured soft optical cable; comprise protecting sheathing and be located at the optical fiber cable at center in the shell; described protecting sheathing comprises reinforcing element layer, hose layer, braid and restrictive coating; described hose layer is with the reinforcing element layer outward; described reinforcing element layer is with braid outward, and described braid is coated with restrictive coating outward.
In the technique scheme, described hose layer is made of metal hose or plastic flexible pipe, its flexible pipe formula in the shape of a spiral coils on described optical fiber cable, wherein metal hose can adopt stainless steel, phosphatization steel or galvanized steel etc. to make, and screw type winding parcel mode helps to improve performances such as antitorque, the resistance to compression of whole optical cable.
The technical scheme of another kind of described hose layer is, includes inside and outside two-layer flexible pipe, respectively with positive and negative two to coiled coil on described optical fiber cable.
In the technique scheme, described reinforcing element layer is stranded or collimated beam formation by plural number strand aramid fiber (triumphant inspiring confidence in drawn), and normal open can adopt 8 strands or 4 strands aramid fiber bundle formation, to improve the stretching resistance of cable.
In the technique scheme, described braid is made of tinsel or aramid fiber braiding, increases the physical strength of optical cable.
Further technical scheme also comprises an inner restrictive coating, and described inner restrictive coating adopts the duplex sheath structure to make the physical property of optical cable more stable between described braid and reinforcing element layer, reaches better laser propagation effect; Described inner restrictive coating and restrictive coating all can adopt PEEK (polyetheretherketone), LDPE (low density polyethylene), LSZH, PU, iron to stroke plastic materials such as dragon, silica gel and make.
Because the technique scheme utilization, the advantage that the utility model compared with prior art has is:
1, because the utility model sheathed successively hose layer, reinforcing element layer (adopting the aramid fiber bundle to constitute usually), braid and restrictive coating outside optical fiber cable, by the good protection of hose layer to the optical fiber cable surface, direct sheathed aramid fiber bundle outside optical fiber cable in the past, of the wearing and tearing of aramid fiber bundle have been avoided to optical fiber cable, make optical cable when possessing characteristics such as high tensile, antitorque, resistance to compression, shock resistance, the fiber-optic signal transmission is also reliable and stable, reduces the appearance that to the loss of optical fiber cable, better prevents the signal attenuation phenomenon;
2, hose layer adopts one deck or two-layer (forward and reverse) coiled coil on the bare fibre line in the utility model, to strengthen antitorque, the anti-pressure ability of optical cable;
3, owing to adopt the structure that adds inner restrictive coating between reinforcing element layer and the braid, form the optical cable of duplex sheath structure, make the physical property of optical cable more stable, reach better fiber-optic signal laser propagation effect.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model embodiment one;
Wherein: 1, optical fiber cable; 2, hose layer; 3, reinforcing element layer; 4, braid; 5, sheath.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment one: shown in accompanying drawing 1, a kind of reinforced indoor and outdoor armoured soft optical cable, comprise protecting sheathing and be located at the optical fiber cable 1 at center in the shell, described protecting sheathing comprises reinforcing element layer 3, flange-connection stainless steel metal flexible pipe, the braiding of metal copper wire and plastic cement sheath 5, described metal hose is with the reinforcing element layer outward, described reinforcing element layer is with the braiding of metallic copper silk outward, the outer plastic cement sheath that is coated with of described metal copper wire braiding; Described metal hose formula in the shape of a spiral coils on described optical fiber cable, constitutes described reinforcing element layer by 8 strands of aramid fiber collimated beams.
Adopt fiber geometries characteristic of the present utility model, optical characteristics, transmission and mechanical property need meet G.652 standard of ITU-T.
Record fiber geometries characteristic and optical characteristics as shown in Table 1:
Embodiment two: a kind of reinforced indoor and outdoor armoured soft optical cable, comprise protecting sheathing and be located at the optical fiber cable at center in the shell, described protecting sheathing comprises reinforcing element layer, metal hose, the braiding of metal copper wire and the silica gel sheath of 4 bursts of stranded formations of aramid fiber, described metal hose is with the reinforcing element layer outward, described reinforcing element layer is with the braiding of metallic copper silk outward, the outer silica gel sheath that is coated with of described metal copper wire braiding; Described hose layer includes inside and outside two-layer wired hose, and wherein the steel wire of internal layer flexible pipe coils on described optical fiber cable with transport screw, and cover wire flexible pipe reverse acting spiral coils on the steel wire of internal layer flexible pipe, to strengthen antitorque, the anti-pressure ability of optical cable.
Embodiment three: a kind of reinforced indoor and outdoor armoured soft optical cable, comprise protecting sheathing and be located at the optical fiber cable at center in the shell, described protecting sheathing comprises galvanized steel metal hose, aramid fiber, inner sheath, metal knitted and sheath, described metal hose is with aramid fiber outward, aramid fiber is with inner sheath outward, inner sheath is with metal knitted outward, the outer sheath that is coated with of described metal copper wire braiding; Described inner sheath and sheath can be selected for use with polyetheretherketone (PEEK) or tygon etc., two jacket structures of realization, and the physical property of optical cable is more stable, reaches better fiber-optic signal laser propagation effect.
Claims (6)
1. reinforced indoor and outdoor armoured soft optical cable; comprise protecting sheathing and be located at the optical fiber cable [1] at center in the shell; described protecting sheathing comprises reinforcing element layer [3], hose layer [2], braid [4] and restrictive coating; it is characterized in that: described hose layer is with the reinforcing element layer outward; described reinforcing element layer is with braid outward, and described braid is coated with restrictive coating outward.
2. indoor and outdoor armoured soft optical cable according to claim 1 is characterized in that: described hose layer [2] is made of metal hose or plastic flexible pipe, and its flexible pipe formula in the shape of a spiral coils on described optical fiber cable.
3. indoor and outdoor armoured soft optical cable according to claim 2 is characterized in that: described hose layer includes inside and outside two-layer flexible pipe, respectively with positive and negative two to coiled coil on described optical fiber cable.
4. indoor and outdoor armoured soft optical cable according to claim 1 is characterized in that: stranded or collimated beam constitutes described reinforcing element layer [3] by plural number strand aramid fiber.
5. indoor and outdoor armoured soft optical cable according to claim 1 is characterized in that: described braid [4] is made of tinsel or aramid fiber braiding.
6. indoor and outdoor armoured soft optical cable according to claim 1 is characterized in that: also comprise an inner restrictive coating, described inner restrictive coating is between described braid and reinforcing element layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200398688U CN201051166Y (en) | 2007-06-15 | 2007-06-15 | Enhanced indoor and outdoor armored soft optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200398688U CN201051166Y (en) | 2007-06-15 | 2007-06-15 | Enhanced indoor and outdoor armored soft optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201051166Y true CN201051166Y (en) | 2008-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200398688U Expired - Fee Related CN201051166Y (en) | 2007-06-15 | 2007-06-15 | Enhanced indoor and outdoor armored soft optical cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN201051166Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680760A (en) * | 2012-05-16 | 2012-09-19 | 中国铁道科学研究院基础设施检测研究所 | High- and low- voltage signal isolation transmission device special for contact network inspection trolley |
| US9885844B2 (en) | 2013-10-16 | 2018-02-06 | CertiCable, Inc. | Armored flexible fiber optic assembly |
| US9927589B2 (en) | 2013-10-16 | 2018-03-27 | CertiCable, Inc. | Armored flexible fiber optic assembly |
| CN114811455A (en) * | 2022-03-09 | 2022-07-29 | 南京大学 | Sensing optical cable for monitoring gas pipeline leakage |
-
2007
- 2007-06-15 CN CNU2007200398688U patent/CN201051166Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680760A (en) * | 2012-05-16 | 2012-09-19 | 中国铁道科学研究院基础设施检测研究所 | High- and low- voltage signal isolation transmission device special for contact network inspection trolley |
| US9885844B2 (en) | 2013-10-16 | 2018-02-06 | CertiCable, Inc. | Armored flexible fiber optic assembly |
| US9927589B2 (en) | 2013-10-16 | 2018-03-27 | CertiCable, Inc. | Armored flexible fiber optic assembly |
| CN114811455A (en) * | 2022-03-09 | 2022-07-29 | 南京大学 | Sensing optical cable for monitoring gas pipeline leakage |
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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: 20080423 Termination date: 20110615 |