CN203535272U - Miniature multi-core full-dry leading-in optical cable - Google Patents
Miniature multi-core full-dry leading-in optical cable Download PDFInfo
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- CN203535272U CN203535272U CN201320604841.4U CN201320604841U CN203535272U CN 203535272 U CN203535272 U CN 203535272U CN 201320604841 U CN201320604841 U CN 201320604841U CN 203535272 U CN203535272 U CN 203535272U
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- multicore
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- optical cable
- dry type
- miniaturization
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Abstract
The utility model discloses a miniature multi-core full-dry leading-in optical cable, and the cable comprises an outer sheath and an inner sheath covered inside the outer sheath. The inner and outer side walls of the inner sheath are respectively provided with aramid fiber. The interior of the inner sheath is provided with multi-core miniature beam tubes which are distributed in the aramid fiber. According to the utility model, two layers of sheaths are employed, thereby effectively guaranteeing the mechanical performance and the environment-resistant performance. The multi-core miniature beam tubes are employed for protecting the optical fiber, and the water-blocking mode of water-blocking yarn is employed, thereby effectively preventing the permeation and diffusion of water, and improving the reliability of an optical cable line.
Description
Technical field
The utility model relates to a kind of leading in cable, particularly a kind of miniaturization multicore dry type leading in cable.
Background technology
Along with the development of optical communication, increasing optical cable is applied in optical transport network, for signal transmits convenience is provided more efficiently.But along with the increase of fiber cable laying amount, in region, free space reduces gradually simultaneously, and the optical cable that can adapt to multiple applied environment in laying future will be favored by each user.Adopt microbeam pipe and dry type stop water.The employing of microbeam pipe can reduce the volume of optical cable, alleviates the weight of optical cable, reduces the difficulty of laying with safeguarding of optical cable, reduces construction cost, can increase the quantity of fibre core in unit area simultaneously, makes the compact conformation of optical cable; The use of the material such as water blocking yarn, water resistance aramid fiber can avoid traditional ointment to be filled in the inconvenience bringing in handshaking procedure, and dry type material water-proof material and optical fiber, each assembly of optical cable have better compatibility.Nonmetal strengthening core can make optical cable be effective to the frequent place with there is interference current of thunder and lightning.Current outdoor optical cable; general structure is that single mode or multimode optical fiber are inserted in the interior filling waterproofing compound pine sleeve pipe that high-modulus plastic makes; cable core center is a metal reinforcement; pine sleeve pipe (and gasket for packing) is twisted into the cable core of compact and rounding around central reinforce member; in cable core, the compound that blocks water is filled in gap, extrudes laminated aluminium-polyethylene sheath stranding outward.This type of optical cable is easily struck by lightning owing to recruiting, size is large, weight is large and the shortcomings such as loaded down with trivial details are installed, and gradually becomes optical cable and introduces the helpless choosing of laying.
Utility model content
For the deficiency existing in prior art, the utility model provides a kind of employing duplex sheath, has effectively guaranteed its mechanical property, environmental resistance; Adopt microbeam protection of pipe optical fiber, the mode that blocks water of water blocking yarn, effectively stops infiltration and the diffusion of moisture, has improved the miniaturization multicore dry type leading in cable of lightguide cable link reliability.
To achieve these goals, the utility model is to realize by the following technical solutions:
A miniaturization multicore dry type leading in cable, comprises oversheath and is coated on the inner sheath in oversheath, the interior lateral wall of described inner sheath is equipped with aramid fiber, is provided with multicore microbeam pipe in inner sheath, and multicore microbeam pipe is arranged in aramid fiber.
Further, in described aramid fiber, be provided with and tear rope.
Further, in described oversheath, be provided with resin fibre reinforced plastic.
Further, described oversheath is high-density polyethylene layer.
Further, described multicore microbeam pipe contains water blocking yarn.
Adopt the miniaturization multicore dry type leading in cable of technique scheme, because the interior lateral wall of described inner sheath is equipped with aramid fiber, in inner sheath, be provided with multicore microbeam pipe, multicore microbeam pipe is arranged in aramid fiber, so employing duplex sheath, effectively guaranteed its mechanical property (stretch-proof, flatten, impact etc.), environmental resistance (waterproof, moistureproof, high low temperature etc.) etc., adopt microbeam protection of pipe optical fiber, the mode that blocks water of water blocking yarn, effectively stop infiltration and the diffusion of moisture, and better with other materials compatibility, can remove the work of cable connection Cleaning Process ointment from, improved the reliability of lightguide cable link.Owing to being provided with and tearing rope in described aramid fiber, so intensity strengthens greatly.Owing to being provided with resin fibre reinforced plastic in described oversheath, so intensity is more strengthened.Because described oversheath is high-density polyethylene layer, so firmly.Because described multicore microbeam pipe contains water blocking yarn, so effectively stop infiltration and the diffusion of moisture, further improve the reliability of lightguide cable link.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, describe the utility model in detail;
Fig. 1 is the structural representation of the utility model miniaturization multicore dry type leading in cable.
Fig. 2 is the manufacture method process flow diagram of the utility model miniaturization multicore dry type leading in cable.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the utility model.
As shown in Figures 1 and 2, a kind of miniaturization multicore dry type leading in cable, comprise oversheath 5 and be coated on the inner sheath 2 in oversheath 5, the interior lateral wall of inner sheath 2 is equipped with aramid fiber 3, is provided with multicore microbeam pipe 1 in inner sheath 2, and multicore microbeam pipe 1 is arranged in aramid fiber 3, in aramid fiber 3, be provided with and tear rope 6, in oversheath 5, be provided with resin fibre reinforced plastic 4, oversheath 5 is high-density polyethylene layer, and multicore microbeam pipe 1 contains water blocking yarn.
The utility model miniaturization multicore dry type leading in cable, employing dry type blocks water, full dielectric structure, and adopt duplex sheath, its mechanical property (stretch-proof, flattening, impact etc.), environmental resistance (waterproof, protection against the tide, high low temperature etc.) etc. have effectively been guaranteed, and through test optical cable can meet anti-bite sting and with the clashing of gunslinging homenergic, so its etc. can be used for the multiple occasions such as pipeline, built on stilts, direct-burried, for optical transport network provides multiple wire laying mode flexibly.Can meet the requirement of outdoor bad border and indoor vertical section construction, can be widely used in core net, Access Network and Fiber to the home, be applicable to the multiple system of layings such as pipeline, built on stilts, direct-burried.For meeting the large core number of small size, and avoid ointment to fill the negative effect to construction and environment, adopt microbeam protection of pipe optical fiber, the mode that blocks water of water blocking yarn.For guaranteeing the full medium of optical cable, with high-modulus aramid fiber alternative metals armouring, for optical cable bears stretching and the flattening in construction operational process, reduce fiber stress simultaneously, adopt two jacket structures.Outdoor optical cable environment for use is relatively severe, for meeting blocking water, cracking resistance, uvioresistant requirement, adopts PE sheath, but easily shrink in the unsupported situation of PE sheath, have a strong impact on signal transmission, therefore in oversheath, two FRP of parallel embedding, with support sleeve, avoid shrinking.
The utility model miniaturization multicore dry type leading in cable, multicore microbeam pipe (containing water blocking yarn), non-metallic fibers reinforcement and material water-proof material, fire retardant polyolefin inner sheath, non-metallic fibers reinforcement and material water-proof material, outer protective polyethylene cover (two FRP of parallel embedding), non-metallic fibers reinforcement material is generally selected aramid yarn, high-modulus PE etc.Adopt dry type water blocking yarn to block water, water blocking yarn is good and cheap, while meeting water, can expand rapidly and form the decades of times that the very large jelly water absorbing capacity of volume can reach own vol, effectively stop infiltration and the diffusion of moisture, and better with other materials compatibility, can remove the work of cable connection Cleaning Process ointment from.Size is little, core number is large, lightweight, larger saving space and transportation construction cost.Multiple-limb can separate subelement as required at the tapping point of network, and tap place does not need to carry out the cutover of whole optical cable, has reduced fiber cable joint, constructs more convenient, and the line fault incidence of optical cable greatly reduces, and has improved the reliability of lightguide cable link.Full medium nonmetal structure, thunderstruck danger while preventing indoor introducing, thus when avoiding oversheath breakage, metal level gets rusty and reduces optical cable serviceable life simultaneously.The optical fiber of tight sleeve optic cable is bound in tight cover covering, and the linear expansion coefficient difference of optical fiber and tight this bi-material of cover covering is very large, so optical fiber can cause strain because of the telescopic variation of tight sleeve layer under low temperature or high-temperature condition, and then there is the problems such as decay is bigger than normal, impact communication in the time of serious.Optical cable and optical fibres is that bale breaking is in microbeam pipe, so there is not this problem.Full-dry optical cable can directly be introduced family by outdoor optical cable distribution point, and environment in the middle of reducing, reduces engineering cost etc. at the accelerating network construction period.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. a miniaturization multicore dry type leading in cable, comprise oversheath and be coated on the inner sheath in oversheath, it is characterized in that: the interior lateral wall of described inner sheath is equipped with aramid fiber, in inner sheath, be provided with multicore microbeam pipe, multicore microbeam pipe is arranged in aramid fiber.
2. miniaturization multicore dry type leading in cable according to claim 1, is characterized in that: in described aramid fiber, be provided with and tear rope.
3. miniaturization multicore dry type leading in cable according to claim 1, is characterized in that: in described oversheath, be provided with resin fibre reinforced plastic.
4. miniaturization multicore dry type leading in cable according to claim 1, is characterized in that: described oversheath is high-density polyethylene layer.
5. miniaturization multicore dry type leading in cable according to claim 1, is characterized in that: described multicore microbeam pipe contains water blocking yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604841.4U CN203535272U (en) | 2013-09-27 | 2013-09-27 | Miniature multi-core full-dry leading-in optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320604841.4U CN203535272U (en) | 2013-09-27 | 2013-09-27 | Miniature multi-core full-dry leading-in optical cable |
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| CN203535272U true CN203535272U (en) | 2014-04-09 |
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| CN201320604841.4U Expired - Fee Related CN203535272U (en) | 2013-09-27 | 2013-09-27 | Miniature multi-core full-dry leading-in optical cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487906A (en) * | 2013-09-27 | 2014-01-01 | 江苏亨通光电股份有限公司 | Manufacturing method of small-sized multi-core full-dry-type introduced optical cable |
| CN103995328A (en) * | 2014-04-18 | 2014-08-20 | 烽火通信科技股份有限公司 | High-and-low temperature resistant optical cable applied to fields of aviation spaceflights, ships and wind power generation |
| CN104317025A (en) * | 2014-10-30 | 2015-01-28 | 江苏通鼎光电股份有限公司 | All-dry parallel wiring cable |
| CN108646368A (en) * | 2018-07-12 | 2018-10-12 | 江苏亨通光电股份有限公司 | All dielectric self-supporting microbeam pipe ADSS optical cables |
-
2013
- 2013-09-27 CN CN201320604841.4U patent/CN203535272U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103487906A (en) * | 2013-09-27 | 2014-01-01 | 江苏亨通光电股份有限公司 | Manufacturing method of small-sized multi-core full-dry-type introduced optical cable |
| CN103995328A (en) * | 2014-04-18 | 2014-08-20 | 烽火通信科技股份有限公司 | High-and-low temperature resistant optical cable applied to fields of aviation spaceflights, ships and wind power generation |
| CN104317025A (en) * | 2014-10-30 | 2015-01-28 | 江苏通鼎光电股份有限公司 | All-dry parallel wiring cable |
| CN108646368A (en) * | 2018-07-12 | 2018-10-12 | 江苏亨通光电股份有限公司 | All dielectric self-supporting microbeam pipe ADSS optical cables |
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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 |
Granted publication date: 20140409 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |