CN201654293U - Non-ribbon fiber type single-layer stranded optical cable with large core number - Google Patents
Non-ribbon fiber type single-layer stranded optical cable with large core number Download PDFInfo
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- CN201654293U CN201654293U CN2010201289603U CN201020128960U CN201654293U CN 201654293 U CN201654293 U CN 201654293U CN 2010201289603 U CN2010201289603 U CN 2010201289603U CN 201020128960 U CN201020128960 U CN 201020128960U CN 201654293 U CN201654293 U CN 201654293U
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Abstract
The utility model belongs to the technical field of communication, which relates to a non-ribbon fiber type single-layer stranded optical cable with large core number, aiming to solve the technical problems of the prior art that the structure design is not reasonable and the like. The optical cable comprises a center reinforcing piece and a plurality of optical fiber beams, wherein the periphery of each optical fiber beam is respectively sleeved with a loose sleeve pipe; fiber paste is filled in the loose sleeve pipe; a pad layer is arranged on the periphery of the center reinforcing piece; and the loose sleeves pipe is stranded around the center reinforcing piece in a single-layer way. The periphery of the stranded sleeve pipe is provided with a metal composite belt for coating the loose sleeve pipe, and a sheath is coated on the periphery of the metal composite belt. The utility model has the advantages that the single-layer stranding type is adopted, so the production process is simple, the investment of production equipment is low, and the traditional equipment can be used for production after a color ring coating device is arranged on a coloring machine; the optical fiber is simple to separate, the containing property of the optical fiber is good, and 288 cores can be contained; the weather resistant property is good, the high and low temperature property is good, the functions of moisture prevention, tension resistance, side pressure resistance, shock resistance and the like can be performed, and the optical cable can be used in direct burying, overhead and pipeline laying ways.
Description
Technical field
The utility model belongs to communication technique field, relates to optical cable, especially relates to a kind of non-belt fiber and large-core number single-layer stranding optical cable.
Background technology
Traditional optical cable is after surpassing 144 cores, and general employing band fibre or the stranded structure of multilayer increase the capacity of optical fiber.But there is following shortcoming in this kind optical cable: use the fine needs of band to increase the fine and loose complete equipment of special band; Use the stranded operation of multilayer many, increased the uncertainty of production cost and quality.On the whole, optical cable mainly contains following three kinds of structures at present: 1, adopt the loose sleeve structure of factice for filling, multifiber is randomly dispersed in the loose sleeve pipe of factice for filling, this structure, when optical cable construction or environment changed, fiber position can relatively move.In order to guarantee that optical cable does not produce excessive strain or too small bending when changing and produces decay at construction or environment, the pine sleeve pipe must have bigger external diameter, cause whole cable outer diameter big like this, the optical cable cost also can be very high, and this optical cable can only carry out the single fiber welding, has caused very big inconvenience to cable connection.2, adopt band structure of optic fibre, multifiber is distributed in the resin of ultraviolet light polymerization side by side, and fibre ribbon is banded, has less thickness, but the fibre ribbon broad.Use the optical cable of this fibre ribbon production because the fibre ribbon broad so the optic cable diameter of producing is bigger, is unfavorable for making full use of of conduit resource.Though this fibre ribbon can 12 optical fiber weldings together, because the fiber bandwidth height ratio is very big, so can make fibre ribbon transition distortion or bending the time optical fiber on the limit produce very big decay.3, adopt the tight tube fiber structure, this structure is directly to extrude one deck macromolecular material outside optical fiber, and this structure has advantages such as diameter is little, in light weight, flexibility is good.But this tight tube fiber structure only is applicable to an optical fiber, and speed of production is relatively slow, and when an optical cable need be used a large amount of tight tube fiber, the diameter of optical cable can be relatively large.
For this reason, people have carried out long-term exploration, have proposed various solutions.For example, Chinese patent literature discloses a kind of elastic sleeve tube type optical cable for optical fiber to house [application number: 200820199265.9], comprise the sheath that is flat, two side ends in the sheath is respectively equipped with a non-metal reinforcement member, the centre of sheath is embedded with a loose sleeve pipe, the outside of pine sleeve pipe is provided with one and tears rope, is filled with fine cream in the loose sleeve pipe and is provided with some colored optical fibers; The outside of described sheath is provided with power lead, and the overcoat and the sheath of power lead are one-body molded, and the both sides of sheath and overcoat junction are provided with tearing groove.The somebody has invented a kind of land optical cable [application number: 01207139.0] that contains the stainless steel ferrule, comprise cable core and outer jacket thereof, contain reinforcement, optical fiber and stainless steel sleeve pipe thereof in the cable core, be filled with fine cream in the sleeve pipe, this optical cable lateral pressure resistant power is strong, physical strength is high, cable outer diameter is less relatively, convenient construction can be controlled the surplus length of sleeve pipe inner fiber again preferably, makes constant product quality.Such scheme has improved properties of optical fiber cable to a certain extent, but still can't fundamentally solve prior art problems.
Summary of the invention
The purpose of this utility model is at the problems referred to above, provides a kind of reasonable in design, simple in structure, compact, is easy to processing and manufacturing, and production cost is lower, the non-belt fiber and large-core number single-layer stranding optical cable that volume of transmitted data is big.
For achieving the above object, the utility model has adopted following technical proposal: this non-belt fiber and large-core number single-layer stranding optical cable, comprise central reinforce member and some fibre bundles, the periphery of every fibre bundle is with a loose sleeve pipe respectively, in loose sleeve pipe, be provided with the fine cream of going along with sb. to guard him fibre bundle, it is characterized in that, described central reinforce member periphery is provided with bed course, above-mentioned loose sleeve pipe is around the central reinforce member single-layer stranding, the periphery of the loose sleeve pipe after stranded is provided with the metal compound belt that each loose sleeve pipe is coated, and is enclosed with sheath in the metal compound belt periphery.
In above-mentioned non-belt fiber and large-core number single-layer stranding optical cable, described fibre bundle is the combination of band colour circle optical fiber and ordinary optic fibre.
In above-mentioned non-belt fiber and large-core number single-layer stranding optical cable, the core number of the optical fiber in every described fibre bundle is no more than 24; The core of the optical fiber of described some fibre bundles is counted summation and is no more than 288.
In above-mentioned non-belt fiber and large-core number single-layer stranding optical cable, be provided with water blocking tape between described metal compound belt and the loose sleeve pipe.
Compared with prior art, the advantage of this non-belt fiber and large-core number single-layer stranding optical cable is: 1, owing to adopt single-layer stranding, production technology is simple, production equipment drops into low, only need on tinting machine, to install and apply color wheel device, all the other utilize existing equipment to produce, and need not to add other servicing units.2, optical fiber separates simply, and it is good that optical fiber holds performance, can reach 288 cores, is specially adapted to many machine rooms of fiber cable branch and city and lays.3, weather resistance is good, high temperature performance is excellent, possesses protection against the tide, anti-opens, effects such as lateral pressure resistant and shock resistance, can direct-burried, built on stilts, pipeline laying.
Description of drawings
Fig. 1 is the cross-sectional structure synoptic diagram that the utility model provides.
Among the figure, central reinforce member 1, fibre bundle 2, optical fiber 20, loose sleeve pipe 3, fine cream 4, bed course 5, metal compound belt 6, sheath 7, water blocking tape 8.
Embodiment
As shown in Figure 1, this non-belt fiber and large-core number single-layer stranding optical cable comprises central reinforce member 1 and some fibre bundles 2.The periphery of every fibre bundle 2 is with a loose sleeve pipe 3 respectively, is provided with the fine cream 4 of going along with sb. to guard him fibre bundle 2 in loose sleeve pipe 3.The core number of the optical fiber 20 in every described fibre bundle 2 is no more than 24.Fibre bundle 2 is the combination of band colour circle optical fiber and ordinary optic fibre.The core of the optical fiber 20 of fibre bundle 2 is counted summation and is no more than 288.
Central reinforce member 1 periphery is provided with bed course 5, and above-mentioned loose sleeve pipe 3 is around central reinforce member 1 single-layer stranding, and the periphery of the loose sleeve pipe 3 after stranded is provided with the metal compound belt 6 that each loose sleeve pipe 3 is coated, and is enclosed with sheath 7 in metal compound belt 6 peripheries.Be provided with water blocking tape 8 between metal compound belt 6 and the loose sleeve pipe 3.
With 288 optical fiber 20 is example: sheath 7 external diameter 21.8mm; Sheath 7 thickness 2.0mm; Metal compound belt 6 thickness 0.25mm; Pine sleeve pipe 3 thickness 0.4mm; Fibre bundle 2 external diameter 3.5mm.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as central reinforce member 1, fibre bundle 2, optical fiber 20, loose sleeve pipe 3, fine cream 4, bed course 5, metal compound belt 6, sheath 7, water blocking tape 8 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (4)
1. non-belt fiber and large-core number single-layer stranding optical cable, comprise central reinforce member (1) and some fibre bundles (2), the periphery of every fibre bundle (2) is with a loose sleeve pipe (3) respectively, in loose sleeve pipe (3), be provided with the fine cream (4) of going along with sb. to guard him fibre bundle (2), it is characterized in that, described central reinforce member (1) periphery is provided with bed course (5), above-mentioned loose sleeve pipe (3) is around central reinforce member (1) single-layer stranding, the periphery of the loose sleeve pipe (3) after stranded is provided with the metal compound belt (6) that each loose sleeve pipe (3) is coated, and is enclosed with sheath (7) in metal compound belt (6) periphery.
2. non-belt fiber and large-core number single-layer stranding optical cable according to claim 1 is characterized in that, described fibre bundle (2) is the combination of band colour circle optical fiber and ordinary optic fibre.
3. non-belt fiber and large-core number single-layer stranding optical cable according to claim 2 is characterized in that, the core number of the optical fiber (20) in the every described fibre bundle (2) is no more than 24; The core of the optical fiber (20) of described some fibre bundles (2) is counted summation and is no more than 288.
4. according to claim 1 or 2 or 3 described non-belt fiber and large-core number single-layer stranding optical cables, it is characterized in that, be provided with water blocking tape (8) between described metal compound belt (6) and the loose sleeve pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201289603U CN201654293U (en) | 2010-03-11 | 2010-03-11 | Non-ribbon fiber type single-layer stranded optical cable with large core number |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201289603U CN201654293U (en) | 2010-03-11 | 2010-03-11 | Non-ribbon fiber type single-layer stranded optical cable with large core number |
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| Publication Number | Publication Date |
|---|---|
| CN201654293U true CN201654293U (en) | 2010-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201289603U Expired - Fee Related CN201654293U (en) | 2010-03-11 | 2010-03-11 | Non-ribbon fiber type single-layer stranded optical cable with large core number |
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| CN (1) | CN201654293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794007A (en) * | 2010-03-11 | 2010-08-04 | 浙江中天电线电缆有限公司 | Non-belt fiber and large-core number single-layer stranding optical cable |
| CN104391363A (en) * | 2014-12-11 | 2015-03-04 | 江苏通鼎光电股份有限公司 | Bundle-like mouseproof direct burial fiber cable with large core number |
-
2010
- 2010-03-11 CN CN2010201289603U patent/CN201654293U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101794007A (en) * | 2010-03-11 | 2010-08-04 | 浙江中天电线电缆有限公司 | Non-belt fiber and large-core number single-layer stranding optical cable |
| CN104391363A (en) * | 2014-12-11 | 2015-03-04 | 江苏通鼎光电股份有限公司 | Bundle-like mouseproof direct burial fiber cable with large core number |
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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: 20101124 Termination date: 20140311 |