CN108107528B - Multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable and manufacturing method thereof - Google Patents
Multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable and manufacturing method thereof Download PDFInfo
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- CN108107528B CN108107528B CN201810170488.0A CN201810170488A CN108107528B CN 108107528 B CN108107528 B CN 108107528B CN 201810170488 A CN201810170488 A CN 201810170488A CN 108107528 B CN108107528 B CN 108107528B
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
Abstract
The invention discloses a multi-core miniature bending-resistant rat-proof spiral armor optical cable which comprises a microbeam tube unit, a water-resistant layer, a spiral armor layer, a reinforcing layer and an outer sheath, wherein a gap is formed between the microbeam tube unit and the spiral armor layer, the water-resistant layer is filled in the gap, the reinforcing layer is stranded outside the spiral armor layer, the outer sheath is extruded outside the reinforcing layer, and the microbeam tube unit comprises a plurality of colored optical fibers and microbeam tubes extruded outside the colored optical fibers. The optical cable has the advantages of compact structure, convenient and fast construction, softness, portability and small size, and also has the advantages of flattening resistance, impact resistance and mouse bite resistance.
Description
Technical Field
The invention relates to the technical field of optical cable manufacturing, in particular to a multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable and a manufacturing method thereof.
Background
Along with the promotion of FTTH construction tide in the global scope, in some mountainous areas, in the aspect of optical cable home-entry laying in countries with serious mouse diseases, if a conventional optical cable for FTTH wiring is adopted, the cable is often bitten by the mouse, normal communication of signals is affected, and great inconvenience is brought to users; in addition, the requirement of smaller size and larger core number of the whole optical cable is met by considering the limited foreign pipeline resources; therefore, comprehensively considering special geographical environments and pipeline resource conditions of some foreign countries, a multi-core miniature anti-bending anti-rat-bite spiral armor optical cable needs to be developed, and has the characteristics of small size, multi-core number, water resistance, softness, flexibility, rat-bite resistance and the like.
The existing anti-rat-bite armor optical cable has the defects that the overall core number of the optical cable is small, the overall size is large and reaches more than 10mm, the bending radius is relatively poor, the optical unit structure form is that a butterfly-shaped optical cable is externally provided with a stainless steel belt armor or a tight-sleeved optical fiber and a steel belt armor, or a rat-proof material is adopted for preventing rats; after the core number is increased, the whole size of the optical cable can be increased greatly, and for some countries with very tight pipeline resources, the optical cable is used for wiring, so that the pipeline resources can be wasted greatly.
Disclosure of Invention
In order to solve the problems, the invention provides a multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable and a manufacturing method thereof.
The technical scheme adopted by the invention is as follows: the utility model provides a miniature bending-resistant protection against rodents of multicore number stings spiral armor optical cable, includes microbeam tube unit, water-blocking layer, spiral armor layer, enhancement layer and oversheath, there is the space between microbeam tube unit and the spiral armor layer, packs the water-blocking layer in the space, the transposition has the enhancement layer outside the spiral armor layer, extrusion molding oversheath outside the enhancement layer, microbeam tube unit includes a plurality of coloring optic fibre and extrusion molding microbeam tube outside the coloring optic fibre.
The spiral armor layer is a spiral armor tube, the inner diameter of the spiral armor tube is (2.4+/-0.1) mm, the outer diameter of the spiral armor tube is (3.0+/-0.1) mm, the gap between the spiral armor tube is (0.2+/-0.1) mm, and the spiral armor tube is formed by a steel wire spiral armor.
The inside of the microbeam tube contains 24 colored optical fibers, and the microbeam tube is formed by adopting an oil-resistant and tensile elastomer material for extrusion molding (such as TPU-thermoplastic polyurethane, PVC-polyvinyl chloride elastomer, TPEE-thermoplastic polyester elastomer and the like), can be peeled by hands, and has a one-time peeling length of more than 5m without using a peeling tool.
And a water blocking yarn is filled in a gap between the microbeam tube unit and the spiral armor layer to serve as a water blocking layer.
The spiral armor layer adopts 304 stainless steel wire spiral armor, increases the whole anti side pressure performance of optical cable.
The reinforcing layer adopts high-modulus aramid fiber, so that the optical cable has tensile property.
The outer sheath is made of super-soft flame-retardant polyurethane, so that the optical cable has bending, flame-retardant and wear-resistant properties.
The manufacturing method of the multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable comprises the following steps of:
(1) Microbeam tube unit fabrication
Installing 24 colored optical fibers on an optical fiber pay-off rack, adjusting pay-off tension to be 0.8-1.0N, and pulling out to a machine head for standby through a dance wheel;
opening the temperature control of the plastic extruding machine, controlling the plastic extruding temperature to be 135-155 ℃, selecting a microbeam tube plastic extruding die, and adjusting the eccentricity by plastic extruding when the temperature of each area of the plastic extruding machine reaches the process requirement (namely 135-155 ℃), and adjusting the outer diameter to be 1.8+/-0.1 mm; penetrating the optical fiber, and pulling the optical fiber to a take-up frame to be coiled on the take-up frame to produce a microbeam tube unit;
(2) Spiral armor layer production
The micro-beam tube unit is arranged on a beam tube pay-off rack, the paying-off tension is adjusted to be 1.5N-2N, and the micro-beam tube unit is pulled out to a machine head through a dance wheel for standby;
installing the water-blocking yarn on an aramid pay-off rack, adjusting the pay-off tension to be 2N-2.5N, and pulling out the water-blocking yarn to a machine head for standby;
installing a spiral armor mold, starting armor equipment, adjusting the outer diameter of the spiral armor pipe, and adjusting the size of the spiral armor pipe to be (2.4+/-0.1) mm/(3.0+/-0.1) mm and the clearance (0.2+/-0.1) mm of the armor pipe; after the outer diameter of the armor tube is regulated, penetrating the microbeam tube unit and the water blocking yarn into the spiral armor tube, and producing a spiral armor layer by a disc;
(3) Outer sheath manufacturing
The spiral armor tube is arranged on a tube bundling pay-off rack, the paying-off tension is adjusted to be 5-8N, and the spiral armor tube is pulled out to a machine head for standby; installing the aramid fiber of the reinforcing layer on an aramid fiber pay-off rack, adjusting the paying-off tension to be 1.5-2N, and pulling out to a machine head for standby;
opening the temperature control of the plastic extruding machine, setting the processing temperature at 150-180 ℃, assembling an outer sheath plastic extruding die, penetrating a spiral armor pipe and twisting aramid fibers, adjusting the eccentric and outer diameters of the outer sheath after the temperature of the plastic extruding machine reaches the requirement, adjusting the outer diameter to 5.0+/-0.1 mm, checking the surface appearance quality of a product and the concentricity of each element of the end face, and confirming that the multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable can be produced on a disc.
In the step (1), the optical fiber is pulled to a take-up frame, appearance quality is required to be checked, no bamboo joints, pits and stripping phenomena exist on the surface of the microbeam tube, whether concentricity of the end face is qualified or not is checked, and when the appearance size and stripping performance of the product meet the technological requirements, the microbeam tube unit can be produced on a disc.
In the step (2), the microbeam tube unit and the water blocking yarn penetrate into the spiral armor tube, the tightness of the microbeam tube unit in the spiral armor tube needs to be checked, the 5m spiral armor tube is cut, the microbeam tube unit can be easily pulled out, and when the appearance size of the spiral armor tube and the tightness of the microbeam tube in the spiral armor tube meet the technological requirements, the spiral armor layer can be produced on the disc.
The beneficial effects of the invention are as follows: 1. a microbeam tube is selected as a basic light unit, 24 optical fibers are placed in 1 tube, the overall size of the microbeam tube unit is 1.8+/-0.1 mm, an oil-resistant and tensile super-soft elastomer material is adopted to replace a transmission PBT material, and the bending radius of the light unit is 5D.
2. The selected microbeam tube unit has very excellent stripping performance, can directly strip the sheath by bare hands by 5 meters, and is very convenient to construct.
3. The whole size of the 24-core optical cable is only 5.0+/-0.1 mm by adopting the stainless steel wire spiral armor, the size of the 24-core optical cable is reduced by about 1/2 compared with the size of the steel belt longitudinally-covered armor optical cable with the same core number, and the lateral pressure resistance can reach 8000N.
4. By adopting the water blocking yarns, the whole optical cable meets the water blocking requirement.
5. The outer sheath adopts a flame-retardant polyurethane sheath, and is soft, environment-friendly, flame-retardant and wear-resistant.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
wherein: 1. the reinforced layer 2, spiral armor layer 3, optic fibre, 4, little beam tube, 5, the yarn that blocks water, 6, oversheath.
Detailed Description
The present invention will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are provided for the purpose of illustrating the present invention only and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1, the multi-core miniature bending-resistant rat-proof spiral armor optical cable comprises a micro-beam tube unit, a water-resistant layer 5, a spiral armor layer 2, a reinforcing layer 1 and an outer sheath 6, wherein a gap is formed between the micro-beam tube unit and the spiral armor layer 2, water-resistant yarns are filled in the gap to serve as the water-resistant layer 5, the reinforcing layer 1 is twisted outside the spiral armor layer 2, and the outer sheath 6 is extruded outside the reinforcing layer 1.
The microbeam tube unit comprises 24 colored optical fibers 3 and a microbeam tube 4 extruded outside the colored optical fibers by an oil-resistant and tensile elastomer material, the microbeam tube is extruded by the oil-resistant and tensile elastomer material (such as TPU-thermoplastic polyurethane, PVC-polyvinyl chloride elastomer, TPEE-thermoplastic polyester elastomer and the like), the tearing strength of the elastomer material is improved, the microbeam tube can be peeled by hands, a peeling tool is not needed, and the disposable peeling length exceeds 5 m.
The spiral armor layer 2 is a spiral armor pipe, the inner diameter is (2.4+/-0.1) mm, the outer diameter is (3.0+/-0.1) mm, the gap between the spiral armor pipes is (0.2+/-0.1) mm, and the spiral armor pipe is formed by a steel wire spiral armor.
The spiral armor layer 2 adopts 304 stainless steel wire spiral armor, and bending property is excellent, and stainless steel wire salt spray resistance prevents rusting, increases the whole anti side pressure performance of optical cable.
The reinforcing layer 1 is made of high-modulus aramid fiber, is light in weight, and enables the optical cable to have excellent tensile properties.
The outer sheath 6 is made of super-soft flame-retardant polyurethane, so that the optical cable has bending, flame-retardant and wear-resistant performances.
The manufacturing method of the multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable comprises the following steps of:
(1) Microbeam tube unit fabrication
Installing 24 colored optical fibers on an optical fiber pay-off rack, adjusting pay-off tension to be 0.8-1.0N, and pulling out to a machine head for standby through a dance wheel;
opening the temperature control of the plastic extruding machine, controlling the plastic extruding temperature to be 135-155 ℃, installing a proper micro-beam pipe plastic extruding die, extruding and adjusting eccentricity when the temperature of each area of the plastic extruding machine reaches the process requirement, and adjusting the outer diameter to be 1.8+/-0.1 mm; penetrating an optical fiber, pulling the optical fiber to a take-up frame, checking appearance quality, requiring that the surface of the microbeam tube has no bamboo joints, pits, stripping and other phenomena, checking whether the concentricity of the end face is qualified, and when the appearance size and stripping performance of the product meet the technological requirements, putting the product on a disc to produce the microbeam tube unit;
(2) Spiral armor layer production
The micro-beam tube unit is arranged on a beam tube pay-off rack, the paying-off tension is adjusted to be 1.5N-2N, and the micro-beam tube unit is pulled out to a machine head through a dance wheel for standby;
installing the water-blocking yarn on an aramid pay-off rack, adjusting the pay-off tension to be 2N-2.5N, and pulling out the water-blocking yarn to a machine head for standby; the water is blocked by adopting the full-dry water blocking yarn, so that the water blocking agent is more environment-friendly, clean and convenient to construct compared with the water blocking paste;
installing a proper spiral armor mold, starting armor equipment, adjusting the outer diameter of a spiral armor pipe, and adjusting the size of the spiral armor pipe to be (2.4+/-0.1) mm/(3.0+/-0.1) mm in the inner diameter/outer diameter, wherein the clearance (0.2+/-0.1) mm of the armor pipe; after the outer diameter of the spiral armor tube is adjusted, penetrating the microbeam tube unit and the water blocking yarn into the spiral armor tube, checking the tightness of the microbeam tube unit in the spiral armor tube, cutting the 5m spiral armor tube, and enabling the microbeam tube unit to be easily pulled out, wherein when the outer dimension of the spiral armor tube and the tightness of the microbeam tube in the spiral armor tube meet the technological requirements, the microbeam tube unit can be coiled to produce the spiral armor layer;
(3) Outer sheath manufacturing
The spiral armor tube is arranged on a tube bundling pay-off rack, the paying-off tension is adjusted to be 5-8N, and the spiral armor tube is pulled out to a machine head for standby; installing the aramid fiber of the reinforcing layer on an aramid fiber pay-off rack, adjusting the paying-off tension to be 1.5-2N, and pulling out to a machine head for standby;
opening the temperature control of the plastic extruding machine, setting the processing temperature at 150-180 ℃, assembling a proper outer sheath plastic extruding die, penetrating a spiral armor pipe and twisting aramid fibers, adjusting the eccentric heel outer diameter of the outer sheath after the temperature of the plastic extruding machine reaches the requirement, adjusting the outer diameter to 5.0+/-0.1 mm, checking the surface appearance quality of a product and the concentricity of each element of the end face, and confirming that the multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable can be manufactured on a disc.
The optical cable solves the technical problems that a plurality of optical fibers are placed in one tube, the whole size of a microbeam tube is smaller than 1.8mm, and the bending radius of the microbeam tube is smaller than 5D; the problem of the original multi-core number anti-rat-bite optical cable is solved, the size is larger, and the developed 24-core anti-rat-bite optical cable has the overall size smaller than 5.0mm; the integral water blocking performance of the rat-proof optical cable is solved; the whole stripping performance of the optical unit sheath is solved, a stripping tool is not needed, the optical unit can be stripped by hands for 5m, and the construction is convenient; the problems that the original rat-proof optical cable adopts steel band armor and the bending performance of the optical cable is poor are solved, and the problem of peculiar smell is caused by adding the rat-proof material into the sheath material; the anti-rat-bite optical cable developed by the invention adopts the stainless steel wire spiral armor, has excellent bending performance, has the bending radius smaller than 10D, adopts the ultra-soft polyurethane sheath, and is environment-friendly and wear-resistant.
The optical cable is suitable for laying and wiring pipelines, and is especially suitable for reconstruction of old communities with severe rats and areas and short pipeline resources. Meanwhile, the optical cable has the advantages of compact structure, convenient and flexible construction, portability and small size, has the advantages of flattening resistance, impact resistance and mouse bite resistance, and can be expanded to outdoor use. The optical cable can also be applied to communication machine rooms, building comprehensive wiring, local area networks, national defense combat readiness, optical fiber sensors, measuring instruments, optical communication equipment connection, base station remote and other application occasions.
Claims (9)
1. The multi-core miniature anti-bending anti-rat-biting spiral armor optical cable is characterized by comprising a microbeam tube unit, a water-resistant layer, a spiral armor layer, a reinforcing layer and an outer sheath, wherein a gap is formed between the microbeam tube unit and the spiral armor layer, the water-resistant layer is filled in the gap, the reinforcing layer is stranded outside the spiral armor layer, the outer sheath is extruded outside the reinforcing layer, and the microbeam tube unit comprises a plurality of colored optical fibers and microbeam tubes extruded outside the colored optical fibers;
the manufacturing method of the multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable comprises the following steps of:
(1) Microbeam tube unit fabrication
Installing 24 colored optical fibers on an optical fiber pay-off rack, adjusting pay-off tension to be 0.8-1.0N, and pulling out to a machine head for standby through a dance wheel; opening the temperature control of the plastic extruding machine, controlling the plastic extruding temperature to be 135-155 ℃, selecting a microbeam tube plastic extruding die, and adjusting the eccentricity by plastic extruding when the temperature of each area of the plastic extruding machine reaches the process requirement, and adjusting the outer diameter to be 1.8+/-0.1 mm; penetrating the optical fiber, and pulling the optical fiber to a take-up frame to be coiled on the take-up frame to produce a microbeam tube unit;
(2) Spiral armor layer production
The micro-beam tube unit is arranged on a beam tube pay-off rack, the paying-off tension is adjusted to be 1.5N-2N, and the micro-beam tube unit is pulled out to a machine head through a dance wheel for standby; installing the water-blocking yarn on an aramid pay-off rack, adjusting the pay-off tension to be 2N-2.5N, and pulling out the water-blocking yarn to a machine head for standby; installing a spiral armor mold, starting armor equipment, adjusting the outer diameter of the spiral armor pipe, and adjusting the size of the spiral armor pipe to be (2.4+/-0.1) mm/(3.0+/-0.1) mm and the clearance (0.2+/-0.1) mm of the armor pipe; after the outer diameter of the armor tube is regulated, penetrating the microbeam tube unit and the water blocking yarn into the spiral armor tube, and producing a spiral armor layer by a disc;
(3) Outer sheath manufacturing
The spiral armor tube is arranged on a tube bundling pay-off rack, the paying-off tension is adjusted to be 5-8N, and the spiral armor tube is pulled out to a machine head for standby; installing the aramid fiber of the reinforcing layer on an aramid fiber pay-off rack, adjusting the paying-off tension to be 1.5-2N, and pulling out to a machine head for standby; opening the temperature control of the plastic extruding machine, setting the processing temperature at 150-180 ℃, assembling an outer sheath plastic extruding die, penetrating a spiral armor pipe and twisting aramid fibers, adjusting the eccentric and outer diameters of the outer sheath after the temperature of the plastic extruding machine reaches the requirement, adjusting the outer diameter to 5.0+/-0.1 mm, checking the surface appearance quality of a product and the concentricity of each element of the end face, and confirming that the multi-core miniature bending-resistant rat-bite-resistant spiral armor optical cable can be produced on a disc.
2. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein the spiral armor layer is a spiral armor tube, the inner diameter is (2.4+/-0.1) mm, the outer diameter is (3.0+/-0.1) mm, and the gap between the spiral armor tubes is (0.2+/-0.1) mm.
3. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein 24 colored optical fibers are contained in the microbeam tube, the microbeam tube is formed by extrusion molding of an oil-resistant and tensile elastomer material, and the microbeam tube can be peeled off by hand, and the length of the microbeam tube can be peeled off by more than 5m without using a peeling tool.
4. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein a water-blocking layer is filled in a gap between the microbeam tube unit and the spiral armor layer.
5. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein the spiral armor layer is made of 304 stainless steel wires, and the overall lateral pressure resistance of the optical cable is improved.
6. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein the reinforcing layer is made of high-modulus aramid fiber, so that the optical cable has tensile property.
7. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein the outer jacket is made of super-flexible flame-retardant polyurethane, so that the optical cable has bending, flame-retardant and wear-resistant properties.
8. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein in the step (1), the optical fiber is pulled to a wire collecting frame, appearance quality is required to be checked, no bamboo joints, pits and stripping phenomena are required to be formed on the surface of the microbeam tube, whether concentricity of the end face is qualified is checked, and when the appearance size and stripping performance of a product meet technological requirements, the microbeam tube unit can be produced on a disc.
9. The multi-core miniature bending-resistant rat-proof spiral armor optical cable according to claim 1, wherein in the step (2), the microbeam tube units and the water-blocking yarns penetrate into the spiral armor tube, the tightness of the microbeam tube units in the spiral armor tube needs to be checked, the 5m spiral armor tube is cut, the microbeam tube units can be easily pulled out, and when the appearance size of the spiral armor tube and the tightness of the microbeam tube in the spiral armor tube meet the technological requirements, the spiral armor layer can be produced on a disc.
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| CN108761688A (en) * | 2018-06-26 | 2018-11-06 | 江苏亨通光电股份有限公司 | A kind of miniature flexible armouring direct-burried, pipeline optical cable and optical cable production technology |
| 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 |
| CN108957638A (en) * | 2018-08-24 | 2018-12-07 | 山东太平洋光纤光缆有限公司 | A kind of LC type butterfly cable wire jumper and manufacturing method |
| CN109143512A (en) * | 2018-10-31 | 2019-01-04 | 广东亨通光电科技有限公司 | A kind of spiral armouring beam cable processing unit (plant) |
| CN110515168A (en) * | 2019-08-30 | 2019-11-29 | 江苏中天科技股份有限公司 | Easily peelable dry fiber optic micro-pipe and dry type microbeam optical cable |
| CN116609906B (en) * | 2023-07-18 | 2023-09-22 | 江苏中天科技股份有限公司 | Unidirectional stranded microbeam optical cable and manufacturing process thereof |
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| KR20100000036A (en) * | 2008-06-24 | 2010-01-06 | 엘에스전선 주식회사 | Optical fiber cable |
| CN202057849U (en) * | 2011-05-05 | 2011-11-30 | 天津市万博线缆有限公司 | Indoor micro-armor flexible optical cable |
| CN203849475U (en) * | 2014-05-30 | 2014-09-24 | 深圳市雅信通光缆有限公司 | Indoor armored flexible optical cable |
| CN107045172A (en) * | 2017-03-16 | 2017-08-15 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | It is a kind of it is light-duty can boundling optical cable of folding and unfolding and preparation method thereof repeatedly |
| CN208125971U (en) * | 2018-03-01 | 2018-11-20 | 江苏中天科技股份有限公司 | A kind of miniature bending resistance mouse bite preventing spiral armor optical cable of Multi-core number |
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2018
- 2018-03-01 CN CN201810170488.0A patent/CN108107528B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100000036A (en) * | 2008-06-24 | 2010-01-06 | 엘에스전선 주식회사 | Optical fiber cable |
| CN202057849U (en) * | 2011-05-05 | 2011-11-30 | 天津市万博线缆有限公司 | Indoor micro-armor flexible optical cable |
| CN203849475U (en) * | 2014-05-30 | 2014-09-24 | 深圳市雅信通光缆有限公司 | Indoor armored flexible optical cable |
| CN107045172A (en) * | 2017-03-16 | 2017-08-15 | 上海传输线研究所（中国电子科技集团公司第二十三研究所） | It is a kind of it is light-duty can boundling optical cable of folding and unfolding and preparation method thereof repeatedly |
| CN208125971U (en) * | 2018-03-01 | 2018-11-20 | 江苏中天科技股份有限公司 | A kind of miniature bending resistance mouse bite preventing spiral armor optical cable of Multi-core number |
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| CN108107528A (en) | 2018-06-01 |
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