CN107526143B - Compression-resistant flame-retardant optical cable - Google Patents
Compression-resistant flame-retardant optical cable Download PDFInfo
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- CN107526143B CN107526143B CN201710852016.9A CN201710852016A CN107526143B CN 107526143 B CN107526143 B CN 107526143B CN 201710852016 A CN201710852016 A CN 201710852016A CN 107526143 B CN107526143 B CN 107526143B
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- layer
- elastic
- optical cable
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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
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- 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
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Insulated Conductors (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
Abstract
The invention discloses a compression-resistant flame-retardant optical cable which comprises an inner core, an elastic layer, a shielding layer, a flame-retardant layer and an outer sheath, wherein the elastic layer is coated on the periphery of the inner core, the shielding layer is coated on the periphery of the elastic layer, the flame-retardant layer is coated on the periphery of the shielding layer, and the outer sheath is coated on the periphery of the flame-retardant layer; the inner core comprises a micro-beam tube positioned in the center of the optical cable and a plurality of optical fibers positioned in the micro-beam tube, and the periphery of the micro-beam tube is coated with a reinforcing layer; the elastic layer is at least provided with two layers, each layer of elastic layer comprises a plurality of elastic pipes which are uniformly distributed, the elastic pipes are arranged along the length direction of the optical cable, and the adjacent two layers of elastic layers are all the elastic pipes of one elastic layer and correspond to the gaps between the two adjacent elastic pipes of the other elastic layer. The optical cable disclosed by the invention has the advantages of good compression resistance, long service life and good flame retardant effect.
Description
Technical Field
The invention belongs to the technical field of optical fiber cables, and particularly relates to a compression-resistant flame-retardant optical cable.
Background
With the continuous development of optical networks, the requirements of users on the use and environment of optical cable products are higher and higher, and the development demand of optical fibers to the home is stronger and stronger. The size requirement of a user on the optical cable is higher, the user requires the optical cable to resist pressure to save wiring space, the optical cable is more and more applied places, the optical cable is easy to crush and damage in installation, the optical cable is damaged due to heavy object knocking, falling object impact and the like, the transmission performance of the optical cable is influenced, and even signal transmission is interrupted. And a large amount of acid gas smoke is generated during combustion, which directly damages human health. The general fire-resistant optical cable adopts a layer-stranding structure, and the fiber paste and the metal band are used as water-blocking and fire-resistant elements, so that the defects of the common optical cable are overcome, but the new problems of damage to human health, environmental pollution and the like caused by the use of the fiber paste also occur.
Disclosure of Invention
The invention mainly solves the technical problem of providing the compression-resistant flame-retardant optical cable which has good compression resistance, long service life and good flame-retardant effect.
In order to solve the technical problems, the invention adopts a technical scheme that: the compression-resistant flame-retardant optical cable comprises an inner core, an elastic layer, a shielding layer, a flame-retardant layer and an outer sheath, wherein the elastic layer is coated on the periphery of the inner core, the shielding layer is coated on the periphery of the elastic layer, the flame-retardant layer is coated on the periphery of the shielding layer, and the outer sheath is coated on the periphery of the flame-retardant layer;
the inner core comprises a micro-beam tube positioned in the center of the optical cable and a plurality of optical fibers positioned in the micro-beam tube, and the periphery of the micro-beam tube is coated with a reinforcing layer;
the elastic layer is at least provided with two layers, each layer of the elastic layer comprises a plurality of elastic tubes which are uniformly distributed, the elastic tubes are arranged along the length direction of the optical cable, and the adjacent two layers of the elastic layers are all elastic tubes of one elastic layer and correspond to the gaps between the two adjacent elastic tubes of the other elastic layer.
Further, the external diameter of the microbeam tube is 0.8-1.2mm, and the external diameter of the outer sheath is 4.8-5.2 mm.
Furthermore, the shielding layer is formed by weaving silver-plated copper alloy wires, and the thickness of the shielding layer is 0.05-0.10 mm.
Further, the reinforcing layer is a glass fiber reinforcing layer.
Further, the elastic tube is a butyl rubber elastic tube, a hydrogenated nitrile rubber elastic tube or a polyurethane rubber elastic tube.
Further, the outer sheath is a fluorescent outer sheath.
Further, the fire-resistant layer is woven by fire-resistant glass fibers.
The invention has the beneficial effects that:
the optical cable is characterized in that the elastic layer is at least provided with two layers, each layer of elastic layer comprises a plurality of elastic tubes which are uniformly distributed, the elastic tubes are arranged along the length direction of the optical cable, the two adjacent layers of elastic layers are the elastic tubes of one elastic layer and correspond to gaps between two adjacent elastic tubes of the other elastic layer, when the optical cable is pressed, pressure is generated between the adjacent elastic layers, and the elastic tubes deform, so that the integral compression resistance of the optical cable is improved, the optical cable is durable in use, and the service life of the optical cable is prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the parts in the drawings are marked as follows:
the optical fiber cable comprises a shielding layer 1, a fire-resistant layer 2, an outer sheath 3, a micro-beam tube 4, an optical fiber 5, a reinforcing layer 6 and an elastic tube 7.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example (b): an anti-compression flame-retardant optical cable comprises an inner core, an elastic layer, a shielding layer 1, a flame-retardant layer 2 and an outer sheath 3, wherein the elastic layer is coated on the periphery of the inner core, the shielding layer 1 is coated on the periphery of the elastic layer, the flame-retardant layer 2 is coated on the periphery of the shielding layer 1, and the outer sheath 3 is coated on the periphery of the flame-retardant layer 2;
the inner core comprises a micro-beam tube 4 positioned in the center of the optical cable and a plurality of optical fibers 5 positioned in the micro-beam tube 4, and a reinforcing layer 6 is coated on the periphery of the micro-beam tube 4;
the elastic layer is at least provided with two layers, each layer the elastic layer includes a plurality of evenly distributed's elasticity pipe 7, elasticity pipe 7 sets up along the length direction of optical cable, and adjacent two-layer elastic layer all is the elasticity pipe 7 of an elastic layer and corresponds with the space between two adjacent elasticity pipes 7 of another elastic layer.
The external diameter of the micro-beam tube 4 is 0.8-1.2mm, and the external diameter of the outer sheath 3 is 4.8-5.2mm
The shielding layer 1 is formed by weaving silver-plated copper alloy wires, and the thickness of the shielding layer 1 is 0.05-0.10 mm.
The reinforcing layer 6 is a glass fiber reinforcing layer.
The elastic tube 7 is a butyl rubber elastic tube, a hydrogenated nitrile rubber elastic tube and a polyurethane rubber elastic tube.
The outer sheath 3 is a fluorescent outer sheath.
The fire-resistant layer 2 is woven by fire-resistant glass fibers.
The working principle of the invention is as follows: the optical cable is characterized in that the elastic layer is at least provided with two layers, each layer of elastic layer comprises a plurality of elastic tubes which are uniformly distributed, the elastic tubes are arranged along the length direction of the optical cable, the two adjacent layers of elastic layers are the elastic tubes of one elastic layer and correspond to gaps between two adjacent elastic tubes of the other elastic layer, when the optical cable is pressed, pressure is generated between the adjacent elastic layers, and the elastic tubes deform, so that the integral compression resistance of the optical cable is improved, the optical cable is durable in use, and the service life of the optical cable is prolonged.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The compression-resistant flame-retardant optical cable is characterized in that: the fireproof insulation material comprises an inner core, an elastic layer, a shielding layer (1), a fireproof layer (2) and an outer sheath (3), wherein the elastic layer is coated on the periphery of the inner core, the shielding layer is coated on the periphery of the elastic layer, the fireproof layer is coated on the periphery of the shielding layer, and the outer sheath is coated on the periphery of the fireproof layer;
the inner core comprises a micro-beam tube (4) positioned in the center of the optical cable and a plurality of optical fibers (5) positioned in the micro-beam tube, and a reinforcing layer (6) is coated on the periphery of the micro-beam tube;
the elastic layer is at least provided with two layers, each layer of elastic layer comprises a plurality of elastic tubes (7) which are uniformly distributed, the elastic tubes are arranged along the length direction of the optical cable, and the elastic layers of the two adjacent layers correspond to the gaps between the two adjacent elastic tubes of the other elastic layer;
wherein, the external diameter of the micro-beam tube is 0.8-1.2mm, and the thickness of the shielding layer is 0.05-0.10 mm.
2. The compression-resistant flame-retardant optical cable according to claim 1, wherein: the outer diameter of the outer sheath is 4.8-5.2 mm.
3. The compression-resistant flame-retardant optical cable according to claim 1, wherein: the shielding layer is formed by weaving silver-plated copper alloy wires.
4. The compression-resistant flame-retardant optical cable according to claim 1, wherein: the reinforcing layer is a glass fiber reinforcing layer.
5. The compression-resistant flame-retardant optical cable according to claim 1, wherein: the elastic tube is a butyl rubber elastic tube, a hydrogenated nitrile rubber elastic tube and a polyurethane rubber elastic tube.
6. The compression-resistant flame-retardant optical cable according to claim 1, wherein: the outer sheath is a fluorescent outer sheath.
7. The compression-resistant flame-retardant optical cable according to claim 1, wherein: the fire-resistant layer is woven by fire-resistant glass fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852016.9A CN107526143B (en) | 2017-09-20 | 2017-09-20 | Compression-resistant flame-retardant optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710852016.9A CN107526143B (en) | 2017-09-20 | 2017-09-20 | Compression-resistant flame-retardant optical cable |
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| Publication Number | Publication Date |
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| CN107526143A CN107526143A (en) | 2017-12-29 |
| CN107526143B true CN107526143B (en) | 2021-02-02 |
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| CN201710852016.9A Active CN107526143B (en) | 2017-09-20 | 2017-09-20 | Compression-resistant flame-retardant optical cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109545471B (en) * | 2018-12-17 | 2023-12-29 | 江苏华能电缆股份有限公司 | Optical fiber load-bearing detection cable based on microseismic monitoring transverse wave sensitization sensing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203396998U (en) * | 2013-08-14 | 2014-01-15 | 长飞光纤光缆四川有限公司 | Layer-stranded fire resistant optical communication cable for coal mine |
| CN105929509A (en) * | 2016-06-27 | 2016-09-07 | 陈怡翔 | Outdoor multi-mode central tube type optical fiber |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104898218B (en) * | 2015-04-23 | 2018-02-02 | 浙江富春江光电科技有限公司 | A kind of tension-resistance optical cable structure and its manufacture method |
| CN204832596U (en) * | 2015-06-17 | 2015-12-02 | 河南省鑫宇光实业有限公司 | High strength high temperature resistance tail optical fiber |
| CN204790122U (en) * | 2015-07-16 | 2015-11-18 | 成都亨通兆业精密机械有限公司 | For military use level optical fiber cable for field operation |
| CN207336868U (en) * | 2017-09-20 | 2018-05-08 | 苏州市光益捷通信科技有限公司 | A kind of resistance to compression fire-retardant cable |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203396998U (en) * | 2013-08-14 | 2014-01-15 | 长飞光纤光缆四川有限公司 | Layer-stranded fire resistant optical communication cable for coal mine |
| CN105929509A (en) * | 2016-06-27 | 2016-09-07 | 陈怡翔 | Outdoor multi-mode central tube type optical fiber |
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| CN107526143A (en) | 2017-12-29 |
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Effective date of registration: 20230725 Address after: 215000 north side of luxui section, 74k, 318 National Road, Lili Town, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Jiangsu Etern Co.,Ltd. Address before: 215000 Huamuqiao village, Zhenze Town, Wujiang District, Suzhou City, Jiangsu Province Patentee before: SUZHOU GUANGYIJIE COMMUNICATION TECHNOLOGY Co.,Ltd. |