CN101794007A - Non-belt fiber and large-core number single-layer stranding optical cable - Google Patents
Non-belt fiber and large-core number single-layer stranding optical cable Download PDFInfo
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- CN101794007A CN101794007A CN201010122477A CN201010122477A CN101794007A CN 101794007 A CN101794007 A CN 101794007A CN 201010122477 A CN201010122477 A CN 201010122477A CN 201010122477 A CN201010122477 A CN 201010122477A CN 101794007 A CN101794007 A CN 101794007A
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Abstract
The invention relates to a non-belt fiber and large-core number single-layer stranding optical cable which belongs to the technical field of communication and solves the technical problems of unreasonable structural design and the like in the prior art. The optical cable comprises a center reinforcing piece and a plurality of optical fiber beams. The periphery of each optical fiber beam is respectively sleeved with a loosening sleeve pipe, and fiber paste is arranged in the loosening sleeve pipe. The periphery of the center reinforcing piece is provided with a pad layer. The loosening sleeve pipe carries out single-layer stranding around the center reinforcing piece. The periphery of the stranded loosening sleeve pipe is provided with metal compound belts for coating the loosening sleeve pipes. The periphery of the metal compound belt is coated with a sheath. The invention has the advantages that as the single-layer stranding method is adopted, the production process is simple, the investment of the production equipment is low, and the traditional equipment can be used for producing by arranging a coating color ring device on a tinting machine; the optical fiber is simple to separate, has good containing property, and can contain 288 cores at most; the weatherproof property is good, the high-temperature and low-temperature properties are good, and the optical cable has the functions of moisture prevention, tension resistance, side pressure resistance, shock resistance and the like, and can be used in direct burying, overhead and pipeline laying.
Description
Technical field
The invention belongs to communication technique field, relate to optical cable, especially relate 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 objective of the invention is at the problems referred to above, provide a kind of reasonable in design, simple in structure, compact, be easy to processing and manufacturing, 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 present invention 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 any one or both in band colour circle optical fiber, the 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.
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.
In above-mentioned non-belt fiber and large-core number single-layer stranding optical cable, the core of the optical fiber of described some fibre bundles is counted summation and is no more than 288.
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 a cross-sectional structure synoptic diagram provided by the invention.
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 any one or both in band colour circle optical fiber, the 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 present invention's spirit is illustrated.The technician of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention 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 invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (5)
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 any one or both in band colour circle optical fiber, the 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.
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).
5. non-belt fiber and large-core number single-layer stranding optical cable according to claim 2 is characterized in that, the core of the optical fiber (20) of described some fibre bundles (2) is counted summation and is no more than 288.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122477A CN101794007A (en) | 2010-03-11 | 2010-03-11 | Non-belt fiber and large-core number single-layer stranding optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010122477A CN101794007A (en) | 2010-03-11 | 2010-03-11 | Non-belt fiber and large-core number single-layer stranding optical cable |
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| Publication Number | Publication Date |
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| CN101794007A true CN101794007A (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010122477A Pending CN101794007A (en) | 2010-03-11 | 2010-03-11 | Non-belt fiber and large-core number single-layer stranding optical cable |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950059A (en) * | 2010-08-18 | 2011-01-19 | 江苏长飞中利光纤光缆有限公司 | Layer stranded optical cable, preparation method thereof and device for method |
| CN101950060A (en) * | 2010-08-18 | 2011-01-19 | 江苏长飞中利光纤光缆有限公司 | Layer stranded optical cable |
| CN107688219A (en) * | 2017-09-30 | 2018-02-13 | 上海朗达电缆（集团）有限公司 | A kind of fireproof cable |
| CN107831577A (en) * | 2015-04-07 | 2018-03-23 | 沈群华 | The manufacture method of communication remote radio head optical cable, cable and optoelectronic composite cable |
| CN108008509A (en) * | 2015-04-07 | 2018-05-08 | 沈群华 | Remote radio head optical cable, cable and optoelectronic composite cable are used in communication |
| CN114035291A (en) * | 2021-11-25 | 2022-02-11 | 长飞光纤光缆股份有限公司 | Optical fiber sleeve unit and impact-resistant optical cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003107307A (en) * | 2001-09-27 | 2003-04-09 | Yazaki Corp | Tension member for optical fiber cable and optical fiber cable using the same |
| CN201199274Y (en) * | 2008-04-24 | 2009-02-25 | 长飞光纤光缆(上海)有限公司 | Whole-medium center beam-tube type airlancing miniature optical cable |
| CN201233758Y (en) * | 2008-02-22 | 2009-05-06 | 崔七宝 | Photoelectric composite signal cable |
| CN201242604Y (en) * | 2008-08-15 | 2009-05-20 | 崔七宝 | Layer twisted type non-metal optical cable |
| CN201654293U (en) * | 2010-03-11 | 2010-11-24 | 浙江中天电线电缆有限公司 | Non-ribbon fiber type single-layer stranded optical cable with large core number |
-
2010
- 2010-03-11 CN CN201010122477A patent/CN101794007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003107307A (en) * | 2001-09-27 | 2003-04-09 | Yazaki Corp | Tension member for optical fiber cable and optical fiber cable using the same |
| CN201233758Y (en) * | 2008-02-22 | 2009-05-06 | 崔七宝 | Photoelectric composite signal cable |
| CN201199274Y (en) * | 2008-04-24 | 2009-02-25 | 长飞光纤光缆(上海)有限公司 | Whole-medium center beam-tube type airlancing miniature optical cable |
| CN201242604Y (en) * | 2008-08-15 | 2009-05-20 | 崔七宝 | Layer twisted type non-metal optical cable |
| CN201654293U (en) * | 2010-03-11 | 2010-11-24 | 浙江中天电线电缆有限公司 | Non-ribbon fiber type single-layer stranded optical cable with large core number |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950059A (en) * | 2010-08-18 | 2011-01-19 | 江苏长飞中利光纤光缆有限公司 | Layer stranded optical cable, preparation method thereof and device for method |
| CN101950060A (en) * | 2010-08-18 | 2011-01-19 | 江苏长飞中利光纤光缆有限公司 | Layer stranded optical cable |
| CN107831577A (en) * | 2015-04-07 | 2018-03-23 | 沈群华 | The manufacture method of communication remote radio head optical cable, cable and optoelectronic composite cable |
| CN108008509A (en) * | 2015-04-07 | 2018-05-08 | 沈群华 | Remote radio head optical cable, cable and optoelectronic composite cable are used in communication |
| CN107688219A (en) * | 2017-09-30 | 2018-02-13 | 上海朗达电缆（集团）有限公司 | A kind of fireproof cable |
| CN114035291A (en) * | 2021-11-25 | 2022-02-11 | 长飞光纤光缆股份有限公司 | Optical fiber sleeve unit and impact-resistant optical cable |
| CN114035291B (en) * | 2021-11-25 | 2023-11-24 | 长飞光纤光缆股份有限公司 | Optical fiber sleeve unit and impact-resistant optical cable |
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Application publication date: 20100804 |