CN113448035A - Nonmetal reinforced large-capacity small-outer-diameter optical cable - Google Patents
Nonmetal reinforced large-capacity small-outer-diameter optical cable Download PDFInfo
- Publication number
- CN113448035A CN113448035A CN202110862037.5A CN202110862037A CN113448035A CN 113448035 A CN113448035 A CN 113448035A CN 202110862037 A CN202110862037 A CN 202110862037A CN 113448035 A CN113448035 A CN 113448035A
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- Prior art keywords
- optical cable
- sleeve
- frp
- diameter optical
- large capacity
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- 230000003287 optical effect Effects 0.000 title claims abstract description 34
- 229910052755 nonmetal Inorganic materials 0.000 title claims abstract description 18
- 230000002787 reinforcement Effects 0.000 claims abstract description 33
- 239000013307 optical fiber Substances 0.000 claims abstract description 12
- 239000004760 aramid Substances 0.000 claims abstract description 9
- 229920003235 aromatic polyamide Polymers 0.000 claims abstract description 9
- 230000001681 protective effect Effects 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 230000009974 thixotropic effect Effects 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polybutylene terephthalate Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- 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
- G02B6/4433—Double reinforcement laying in straight line with optical transmission element
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
本发明公开通信技术领域的一种非金属加强大容量小外径光缆，光缆中间有2根圆形PBT材料套管，套管直径根据光纤容量大小而改变，套管内部光纤采用着色光纤，当套管内光纤数量超过12芯时，采用有色非金属低收缩性扎纱按12个颜色光纤为单元进行螺旋缠绕成束进行组合区分，套管外部放置阻水纱，防止光缆外部水汽或水通过光缆连接截面端进入光缆内部；与套管相邻放置2根FRP和芳纶纱加强件，套管与FRP呈对称性，加强件主要起到抗拉作用，同时芳纶纱除了起到抗拉作用，还可以起到填充作用和内部套管、FRP相对位置的固定和捆扎作用。在原有产品设计的基础上保持原设计的光缆性能不发生变化，光缆结构进行优化减少相应的套管和填充，实现大容量小外径的特性。
The invention discloses a non-metal reinforced large-capacity small-diameter optical fiber cable in the field of communication technology. There are two circular PBT material sleeves in the middle of the optical cable. The diameter of the sleeves changes according to the capacity of the optical fibers. When the number of optical fibers in the sleeve exceeds 12 cores, non-ferrous non-metallic low-shrinkage yarns are used to combine and distinguish 12 colored optical fibers by spiral winding into bundles. Water blocking yarns are placed outside the sleeve to prevent water vapor or water from passing through the optical cable outside the optical cable. The end of the connecting section enters the inside of the optical cable; two FRP and aramid yarn reinforcements are placed adjacent to the sleeve. The sleeve and FRP are symmetrical, and the reinforcement mainly plays a tensile role. , it can also play the role of filling and fixing and bundling the relative position of the inner casing and FRP. On the basis of the original product design, the performance of the original design of the optical cable remains unchanged, and the optical cable structure is optimized to reduce the corresponding casing and filling to achieve the characteristics of large capacity and small outer diameter.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a nonmetal reinforced large-capacity small-outer-diameter optical cable.
Background
The indoor and outdoor communication optical cable basically adopts a layer-stranded central reinforcement, a central tube type sheath layer inner parallel symmetrical reinforcement and a single aramid yarn reinforcement structure, can meet the capacity of a multi-core optical fiber, but hardly realizes the technical requirement of the small outer diameter of a product, and therefore a nonmetal reinforced large-capacity small-outer-diameter optical cable is provided.
Disclosure of Invention
The invention aims to provide a non-metal reinforced large-capacity small-outer-diameter optical cable to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a nonmetal little external diameter optical cable of strengthening large capacity, includes outside protection sheath, the inner chamber of outside protection sheath is equipped with the sleeve pipe, intraduct is equipped with optic fibre, and the reinforcement is placed to the sleeve pipe adjacent position, and the reinforcement is located the inner chamber of outside protection sheath.
Further, the number of the sleeves is 2.
Further, the reinforcement includes an FRP reinforcement and an aramid yarn reinforcement.
Further, the number of the FRP reinforcements is 2.
Further, the root sleeve and the root FRP reinforcement are symmetrically arranged.
Furthermore, 2 sleeve pipes are obliquely symmetrical, 2 FRP reinforcing pieces are obliquely symmetrical, and 2 sleeve pipes and 2 FRP reinforcing pieces are symmetrically combined and arranged in an X shape.
Furthermore, thixotropic water-blocking type fiber paste is filled in the sleeve.
Further, the aramid yarn reinforcement is filled in the inner cavity of the external protective sheath to wrap the sleeve and the FRP reinforcement.
Furthermore, the section of the external protective sheath is circular and is formed by extrusion molding of high-density polyethylene.
Further, a water blocking yarn layer is arranged outside the sleeve.
Compared with the prior art, the invention has the beneficial effects that: the optical cable is provided with 2 round PBT material sleeves in the middle, the performance of the originally designed optical cable is kept unchanged on the basis of the original product design, the symmetrical stranding process of the inner sleeve of the sheath layer and the FRP reinforcement is adopted, the optical cable structure is optimized, the corresponding sleeves and filling are reduced, and the characteristics of large capacity and small outer diameter are realized.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. an outer protective sheath; 2. a sleeve; 3. an optical fiber; 4. a water-blocking yarn layer; 5. a reinforcement; 51. an FRP reinforcement; 52. aramid yarn reinforcement.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a nonmetal reinforced large-capacity small-outer-diameter optical cable comprises an external protective sheath 1, a sleeve 2 is arranged in an inner cavity of the external protective sheath 1, and the optical cable is made of a PBT (polybutylene terephthalate) material sleeve, has high heat resistance, toughness, fatigue resistance, self-lubrication, low friction coefficient, weather resistance and low water absorption rate which are only 0.1 percent, still keeps various physical properties (including electrical property) in a humid environment, has electrical insulation property, resists hot water, alkalis, acids and oils, can be rapidly crystallized at low temperature, and has good formability;
the optical fiber 3 is arranged in the sleeve 2, the optical fiber 3 adopts a 200 mu m diameter optical fiber, the diameter of the sleeve 2 is changed according to the capacity of the optical fiber 3, for example, the outer diameter of the sleeve 2 with the capacity of 24-core optical fiber is 1.4 mm; meanwhile, the PBT sleeve is filled with thixotropic water-blocking type fiber paste, water-blocking yarns are placed outside the sleeve 2 to form a water-blocking yarn layer 4, and water vapor or water outside the optical cable is prevented from entering the optical cable through the optical cable connecting section end in a matching manner;
specifically, 2 round PBT material sleeves 2 are arranged in the middle of the optical cable, the reinforcing parts 5 are arranged at the adjacent positions of the sleeves 2, and the reinforcing parts 5 are also positioned in the inner cavity of the external protective sheath 1.
Further, the reinforcement 5 comprises an FRP reinforcement 51 and an aramid yarn reinforcement 52, the number of the FRP reinforcements 51 is set to 2, 2 sleeves 2 are diagonally symmetrical, 2 FRP reinforcements 51 are diagonally symmetrical, 2 sleeves 2 and 2 FRP reinforcements 51 are symmetrically combined to form an X-shaped arrangement, and the reinforcements mainly play a role in tension; meanwhile, the aramid yarn reinforcing member 52 has a tensile effect, and can also play a filling effect and a fixing and bundling effect on the relative positions of the inner sleeve 2 and the FRP reinforcing member 51;
the section of the external protective sheath 1 is circular, and the external protective sheath is formed by extrusion molding of high-density polyethylene, and the hardness, the tensile strength and the creep property of the external protective sheath are superior to those of low-density polyethylene; the wear resistance, the electrical insulation, the toughness and the cold resistance are good; the chemical stability is good, and the paint is not dissolved in any organic solvent at room temperature, and is resistant to corrosion of acid, alkali and various salts; the thick walls of the sheath layers of the external protective sheath 1 are designed equally, and the external protective sheath is suitable for outdoor overhead installation and pipeline installation.
The design keeps the performance of the originally designed optical cable unchanged on the basis of the design of the original product, the sleeve 2 and the FRP reinforcement 51 symmetrical type stranding process inside the sheath layer of the external protection sheath 1 are adopted, the optical cable structure is optimized to reduce the corresponding sleeve 2 and the filling, and the characteristic of large capacity and small outer diameter is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a nonmetal little external diameter optical cable of strengthening large capacity, includes outside protection sheath (1), its characterized in that: the inner cavity of the external protection sheath (1) is provided with a sleeve (2), the optical fiber (3) is arranged inside the sleeve (2), the reinforcing piece (5) is placed at the adjacent position of the sleeve (2), and the reinforcing piece (5) is located in the inner cavity of the external protection sheath (1).
2. A non-metal reinforced large capacity small outer diameter optical cable according to claim 1, wherein: the number of the sleeves (2) is 2.
3. A non-metal reinforced large capacity small outer diameter optical cable according to claim 2, wherein: the reinforcement (5) comprises an FRP reinforcement (51) and an aramid yarn reinforcement (52).
4. A non-metal reinforced large capacity small outer diameter optical cable according to claim 3, wherein: the number of the FRP reinforcements (51) is 2.
5. The non-metal reinforced large capacity small outer diameter optical cable of claim 4, wherein: the 2 sleeves (2) and the 2 FRP reinforcements (51) are symmetrically arranged.
6. The non-metal reinforced large capacity small outer diameter optical cable according to claim 5, wherein: 2 sleeve pipes (2) are obliquely symmetrical, 2 FRP reinforcing pieces (51) are obliquely symmetrical, and the 2 sleeve pipes (2) and the 2 FRP reinforcing pieces (51) are symmetrically combined to form an X-shaped arrangement.
7. A non-metal reinforced large capacity small outer diameter optical cable according to claim 1, wherein: the casing (2) is filled with thixotropic water-blocking type fiber paste.
8. A non-metal reinforced large capacity small outer diameter optical cable according to claim 3, wherein: the aramid yarn reinforcement (52) is filled in the inner cavity of the external protective sheath (1) and wraps the sleeve (2) and the FRP reinforcement (51).
9. A non-metal reinforced large capacity small outer diameter optical cable according to claim 1, wherein: the section of the external protective sheath (1) is circular and is formed by extrusion molding of high-density polyethylene.
10. A non-metal reinforced large capacity small outer diameter optical cable according to claim 1, wherein: and a water-blocking yarn layer (4) is arranged outside the sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110862037.5A CN113448035A (en) | 2021-07-29 | 2021-07-29 | Nonmetal reinforced large-capacity small-outer-diameter optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110862037.5A CN113448035A (en) | 2021-07-29 | 2021-07-29 | Nonmetal reinforced large-capacity small-outer-diameter optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113448035A true CN113448035A (en) | 2021-09-28 |
Family
ID=77817615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110862037.5A Pending CN113448035A (en) | 2021-07-29 | 2021-07-29 | Nonmetal reinforced large-capacity small-outer-diameter optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113448035A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864722Y (en) * | 2005-12-16 | 2007-01-31 | 北京康宁光缆有限公司 | Light type optical cable |
| CN201060295Y (en) * | 2007-06-13 | 2008-05-14 | 江苏长飞中利光纤光缆有限公司 | Base pipe type optic cable with improved structure |
| WO2017107373A1 (en) * | 2015-12-22 | 2017-06-29 | 长飞光纤光缆股份有限公司 | Indoor and outdoor rodent-resistant optical cable and manufacturing method therefor |
| CN206497238U (en) * | 2017-02-18 | 2017-09-15 | 扬州市伟视网络科技有限公司 | A kind of new Full-dry optical fiber optical cable |
| CN211554402U (en) * | 2019-12-31 | 2020-09-22 | 汕头高新区奥星光通信设备有限公司 | Three-unit layer-stranded light optical cable |
| CN216133226U (en) * | 2021-07-29 | 2022-03-25 | 合肥兴联通讯有限公司 | Nonmetal reinforced large-capacity small-outer-diameter optical cable |
-
2021
- 2021-07-29 CN CN202110862037.5A patent/CN113448035A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2864722Y (en) * | 2005-12-16 | 2007-01-31 | 北京康宁光缆有限公司 | Light type optical cable |
| CN201060295Y (en) * | 2007-06-13 | 2008-05-14 | 江苏长飞中利光纤光缆有限公司 | Base pipe type optic cable with improved structure |
| WO2017107373A1 (en) * | 2015-12-22 | 2017-06-29 | 长飞光纤光缆股份有限公司 | Indoor and outdoor rodent-resistant optical cable and manufacturing method therefor |
| CN206497238U (en) * | 2017-02-18 | 2017-09-15 | 扬州市伟视网络科技有限公司 | A kind of new Full-dry optical fiber optical cable |
| CN211554402U (en) * | 2019-12-31 | 2020-09-22 | 汕头高新区奥星光通信设备有限公司 | Three-unit layer-stranded light optical cable |
| CN216133226U (en) * | 2021-07-29 | 2022-03-25 | 合肥兴联通讯有限公司 | Nonmetal reinforced large-capacity small-outer-diameter optical cable |
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