CN107608046B - Light bird pecking prevention aerial optical cable - Google Patents
Light bird pecking prevention aerial optical cable Download PDFInfo
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- CN107608046B CN107608046B CN201711077716.1A CN201711077716A CN107608046B CN 107608046 B CN107608046 B CN 107608046B CN 201711077716 A CN201711077716 A CN 201711077716A CN 107608046 B CN107608046 B CN 107608046B
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- 230000003287 optical effect Effects 0.000 title claims abstract description 25
- 230000002265 prevention Effects 0.000 title claims abstract description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 52
- 239000010935 stainless steel Substances 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 42
- 238000005253 cladding Methods 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 11
- 239000004698 Polyethylene Substances 0.000 abstract description 4
- -1 polyethylene Polymers 0.000 abstract description 4
- 229920000573 polyethylene Polymers 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 description 12
- 239000010959 steel Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The invention discloses a light bird pecking prevention aerial optical cable, which comprises a cable core, wherein the periphery of the cable core is coated with a stainless steel metal net, the periphery of the stainless steel metal net is coated with an outer sheath, and the stainless steel metal net comprises: the first net layer, the second net layer and the third net layer are stainless steel core yarn layers, the second net layer is a blended yarn layer, the first net layer and the third net layer are arranged on two sides of the second net layer, the first net layer, the second net layer and the third net layer are all grid structures, the second net layer is aligned with grids of the third net layer, an included angle between weft yarns of the first net layer and weft yarns of the third net layer is alpha, and alpha is 0-90 degrees. The stainless steel metal net belt and the polyethylene outer sheath are longitudinally wrapped or wound outside the cable core, so that the optical cable has good flexibility, bending property and the like, is light in weight and small in outer diameter, and can effectively prevent birds from pecking.
Description
Technical Field
The invention relates to the field of communication, in particular to a light bird pecking prevention aerial optical cable.
Background
The traditional design of the optical cable for preventing birds from pecking generally has two types, one is to design the outer sheath into a color (such as red) which is disliked by birds, so that birds are unwilling to get close to the optical cable, but the effect is limited, and the warning color can age and fade along with the time, so that the protection effect is poorer and poorer. The other is to add a metal protection layer such as a round steel wire spiral armor layer or a stainless steel tape armor layer in the outer sheath to protect the optical cable outer sheath to be hard enough and not easy to damage, but the adoption of the steel wire armor layer or the stainless steel tape armor layer and other metal protection layers not only leads the bending performance of the optical cable to be poor, but also greatly increases the weight and the outer diameter of the optical cable, further increases the production, construction and laying and use difficulties of the optical cable, and is also unsuitable for aerial laying with high manufacturing cost.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the light bird pecking prevention aerial optical cable, which is longitudinally or spirally wrapped outside the cable core with the stainless steel metal mesh belt and the polyethylene outer sheath, and has good flexibility, bending property and the like, and the light weight and small outer diameter of the optical cable can effectively prevent birds from pecking.
In order to solve the technical problems, the invention provides a light bird pecking prevention aerial optical cable, which comprises a cable core, wherein the periphery of the cable core is coated with a stainless steel metal net, the periphery of the stainless steel metal net is coated with an outer sheath, and the stainless steel metal net comprises: the first net layer, the second net layer, the third net layer, first net layer with the third net layer is stainless steel ladle core yarn layer, the second net layer is the blending yarn layer, first net layer and third net layer set up the both sides of second net layer, first net layer, second net layer, third net layer are the grid structure, the second net layer with the net alignment of third net layer, the woof of first net layer with the contained angle between the woof of third net layer is alpha, alpha is 0-90.
In a preferred embodiment of the present invention, the reflection coefficient of the stainless steel wire mesh is gradually decreased when the α is 0 to 45 °, and the reflection coefficient of the stainless steel wire mesh is gradually increased when the α is 45 to 90 °.
In a preferred embodiment of the present invention, the thickness of the first web layer is equal to the thickness of the third web layer, and the thickness of the first web layer and the third web layer is 0.5-1.5mm.
In a preferred embodiment of the present invention, the distance between the weft yarns of the first mesh layer is a, the distance between the warp yarns of the first mesh layer is b, the distance between the weft yarns of the third mesh layer is a, the distance between the warp yarns of the third mesh layer is b, and b < a.
In a preferred embodiment of the present invention, further comprising, the a is 3-5mm and the b is 1-2mm.
In a preferred embodiment of the invention, it is further comprised that the angle between the weft yarns and the warp yarns of the first web layer is beta, said beta being 30-90 deg..
In a preferred embodiment of the present invention, further comprising, the second layer weft yarns are equidistant from the warp yarns.
In a preferred embodiment of the invention, the distance between the weft yarns and the warp yarns of the second layer is 0.5-1mm.
The invention has the technical effects that:
1. the stainless steel metal net adopts a three-layer structure, the first net layer and the third net layer are stainless steel core yarn layers, the second net layer is a blended yarn layer, the stainless steel metal net belt and the polyethylene outer sheath are longitudinally wrapped or wound outside the cable core, and the optical cable has good flexibility, bending property and the like, is light in weight and small in outer diameter, and can effectively prevent birds from gripping pecking.
2. According to the invention, the second net layer of the stainless steel metal net is aligned with the grids of the third net layer, the included angle between the weft yarns of the first net layer and the weft yarns of the third net layer is alpha, alpha is 0-90 degrees, when alpha is 0-45 degrees, the reflection coefficient of the stainless steel metal net is gradually reduced, when alpha is 45-90 degrees, the reflection coefficient of the stainless steel metal net is gradually increased, when alpha is 45 degrees, the reflection coefficient is minimum, namely the shielding performance is worst, the reflection coefficient is consistent with the reflection coefficient at 90 degrees, and the alignment and rotation between the first net layer and the third net layer are consistent independently from the shielding performance of the stainless steel metal net, but when alpha is 0-90 degrees, the soft bending performance of the stainless steel metal net is enhanced, so that the shielding performance and the soft bending performance of the stainless steel metal net are better.
3. In the invention, the first net layer is consistent with the grid structure of the third net layer, the distance between the weft yarns of the first net layer is a, the distance between the warp yarns of the first net layer is b, the distance between the warp yarns of the third net layer is a, the distance between the warp yarns of the third net layer is b, the distance between the warp yarns and the weft yarns of the stainless steel core yarn layer is not equal, the distance between the warp yarns and the weft yarns and the included angle alpha are mutually influenced, and the experimental verification proves that the flexibility, the shielding performance and the mechanical comprehensive performance of the stainless steel metal net are better when the distance between the warp yarns and the weft yarns of the stainless steel core yarn layer is 3-5mm, the distance between the b is 1-2mm, and the angle alpha is 0-90 degrees.
4. The stainless steel metal net is applied to the cable, and the stainless steel metal net belt is light and thin, is relatively soft and has good bending property, and the bending property of the optical cable is not affected.
5. In the invention, the first net layer is contacted with the outer sheath, the included angle between the weft yarn and the warp yarn of the first net layer in the first net layer is beta, the beta is 30-90 degrees, the surface of the metal net belt is provided with net lines, and the molten sheath material can be embedded into the gaps of the metal net when the extruded outer sheath is produced, so that the outer sheath can be better coated, the bonding is tighter, and the phenomena of unstable bonding, easiness in cracking and the like can not occur; the structure between the steel strip armor and the outer sheath is compact, and the steel strip armor is impermeable to water longitudinally (water is easy to permeate at the joint of the common steel strip armor); the reticular band has elasticity, can resist impact and has a certain function of preventing shotgun from being scattered; compared with the traditional steel belt or steel wire armor, the net-shaped material saves more metal materials and resources; the cost of the product materials is reduced, the outer diameter is smaller, the weight is lighter, the construction and transportation are more convenient, and the overhead laying is more convenient.
Drawings
FIG. 1 is a schematic diagram of the structure of an optical cable;
FIG. 2 is a schematic view of the stainless steel wire mesh of FIG. 1;
FIG. 3 is a schematic view of the structure between the layers of the stainless steel wire mesh of FIG. 2;
FIG. 4 is a schematic view of the third web layer of FIG. 2;
FIG. 5 is a schematic structural view of a first web layer;
the reference numerals in the figures illustrate:
1-cable core, 2-stainless steel metal net, 3-outer sheath, 4-warp, 5-weft, 201-first net layer, 202-second net layer, 203-third net layer.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Examples
The embodiment discloses a light bird pecking prevention aerial optical cable, which comprises a cable core 1, wherein the periphery of the cable core 1 is coated with a stainless steel metal net 2, and the periphery of the stainless steel metal net 2 is coated with an outer sheath 3.
The stainless steel wire net 2 includes: the first net layer 201, the second net layer 202 and the third net layer 203, wherein the first net layer 201 and the third net layer 203 are stainless steel core yarn layers, the thickness of the first net layer 201 is equal to that of the third net layer 203, and the thickness of the first net layer 201 and the second net layer 203 is 0.5-1.5mm.
The first mesh layer 201 is different from the mesh structure of the third mesh layer 203, the distance between the weft yarns of the first mesh layer 201 is a, the distance between the warp yarns of the first mesh layer 201 is b, the distance between the warp yarns of the third mesh layer 203 is a, the distance between the warp yarns of the third mesh layer 203 is b, and b < a. In the embodiment, the intervals between the warp yarns and the weft yarns of the stainless steel core yarn layer are unequal, the intervals between the warp yarns and the weft yarns and the included angle alpha are mutually influenced, and experiments prove that when a is 3-5mm, b is 1-2mm and alpha is 0-90 degrees, the stainless steel metal net has better flexibility, shielding performance and mechanical comprehensive performance.
In this embodiment, a is 3-5mm, b is 1-2mm, and the angle between the weft yarn of the first mesh layer 201 and the weft yarn of the third mesh layer 203 is α, and α is 0-90 °.
Through reflection coefficient detection, when the alpha is 0-45 degrees, the reflection coefficient of the stainless steel metal net is gradually reduced, and when the alpha is 45-90 degrees, the reflection coefficient of the stainless steel metal net is gradually increased. When α is 45 °, the reflection coefficient is the smallest, i.e., the shielding performance is the worst, and the reflection coefficient at 0 ° coincides with the reflection coefficient at 90 °, and the alignment and rotation between the first mesh layer and the third mesh layer coincide solely from the shielding performance of the stainless steel metal mesh, but when α is 0 to 90 °, the soft bending performance of the stainless steel metal mesh is enhanced, and therefore, the shielding performance and soft bending performance of the stainless steel metal mesh of the present invention are preferable.
The second mesh layer 202 is a blended yarn layer, the first mesh layer 201 and the third mesh layer 203 are disposed on two sides of the second mesh layer 202, the first mesh layer 201, the second mesh layer 202 and the third mesh layer 203 are all in a grid structure, and the second mesh layer 202 is aligned with the grids of the third mesh layer 203.
The stainless steel metal net adopts a three-layer structure, the first net layer and the third net layer are stainless steel core yarn layers, the second net layer is a blended yarn layer, the stainless steel metal net belt and the polyethylene outer sheath are longitudinally wrapped or wound outside the cable core, and the optical cable has good flexibility, bending property and the like, is light in weight and small in outer diameter, and can effectively prevent birds from gripping pecking.
As shown in fig. 5, the angle between the weft and warp yarns of the first layer 201 is β, which is 30-90 °. And, the first mesh layer is in contact with the outer jacket layer. Through detection, the surface of the metal mesh belt is provided with mesh lines, and molten sheath materials can be embedded into metal mesh gaps when the extruded outer sheath is produced, so that the outer sheath can be better coated, the adhesion is tighter, and adverse phenomena of unstable adhesion, easiness in cracking and the like can not occur; the structure between the steel strip armor and the outer sheath is compact, and the steel strip armor is impermeable to water longitudinally (water is easy to permeate at the joint of the common steel strip armor); the reticular band has elasticity, can resist impact and has a certain function of preventing shotgun from being scattered; compared with the traditional steel belt or steel wire armor, the net-shaped material saves more metal materials and resources; the cost of the product materials is reduced, the outer diameter is smaller, the weight is lighter, the construction and transportation are more convenient, and the overhead laying is more convenient.
The weft yarns and warp yarns in the first mesh layer 201 of the comparative example are perpendicular to each other, and the coating performance of the outer sheath is inferior to that of the present example when the first mesh layer is in contact with the outer sheath.
In this embodiment, the distance between the weft yarns and the warp yarns of the second layer 202 is equal. The second web layer 202 has a distance between the weft yarns and the warp yarns of 0.5-1mm.
In this embodiment, the spacing between the weft yarn and the warp yarn of the second gauze layer 202 is designed to be smaller than that of the first gauze layer 201 and the third gauze layer 203, and the stainless steel metal gauze has better flexibility, shielding performance and mechanical comprehensive performance.
The above-described embodiments are merely preferred embodiments for fully explaining the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutions and modifications will occur to those skilled in the art based on the present invention, and are intended to be within the scope of the present invention. The protection scope of the invention is subject to the claims.
Claims (7)
1. The utility model provides a light-duty bird pecking prevention aerial optical cable, its includes the cable core, the periphery cladding of cable core has stainless steel metal mesh, stainless steel metal mesh periphery cladding has the oversheath, its characterized in that, stainless steel metal mesh includes: the first net layer, the second net layer and the third net layer are stainless steel ladle core yarn layers, the second net layer is a blended yarn layer, the first net layer and the third net layer are arranged on two sides of the second net layer, the first net layer, the second net layer and the third net layer are all grid structures, the second net layer is aligned with grids of the third net layer, an included angle between weft yarns of the first net layer and weft yarns of the third net layer is alpha, and the alpha is 0-90 degrees;
when alpha is 0-45 degrees, the reflection coefficient of the stainless steel metal net is gradually reduced, and when alpha is 45-90 degrees, the reflection coefficient of the stainless steel metal net is gradually increased;
the included angle between the weft yarns and the warp yarns of the first mesh layer is beta, and the beta is 30-90 degrees.
2. The lightweight bird pecking resistant aerial optical cable of claim 1, wherein the first and third web layers are of equal thickness, the first and third web layers having a thickness of 0.5-1.5mm.
3. The lightweight bird pecking resistant aerial optical cable of claim 1, wherein the distance between the weft yarns of the first web layer is a, the distance between the warp yarns of the first web layer is b, the distance between the weft yarns of the third web layer is a, the distance between the warp yarns of the third web layer is b, and b < a.
4. A lightweight bird pecking resistant aerial optical cable according to claim 3, wherein a is 3-5mm and b is 1-2mm.
5. The lightweight bird pecking resistant aerial fiber optic cable of claim 1, wherein the first web layer is in contact with the outer jacket layer.
6. The lightweight bird pecking resistant aerial optical cable of claim 1, wherein the second web layer weft and warp are equidistant.
7. The lightweight bird pecking resistant aerial optical cable of claim 6, wherein the distance between the second web layer weft and warp yarns is 0.5-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077716.1A CN107608046B (en) | 2017-11-06 | 2017-11-06 | Light bird pecking prevention aerial optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711077716.1A CN107608046B (en) | 2017-11-06 | 2017-11-06 | Light bird pecking prevention aerial optical cable |
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| Publication Number | Publication Date |
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| CN107608046A CN107608046A (en) | 2018-01-19 |
| CN107608046B true CN107608046B (en) | 2024-02-20 |
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| CN201711077716.1A Active CN107608046B (en) | 2017-11-06 | 2017-11-06 | Light bird pecking prevention aerial optical cable |
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| CN108761684B (en) * | 2018-06-01 | 2020-06-30 | 安徽电信实业集团有限公司器贸分公司 | Self-supporting optical cable guard shield structure |
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| CN101707071A (en) * | 2009-12-04 | 2010-05-12 | 江苏远洋东泽电缆股份有限公司 | Low-smoke halogen-free light intrinsically-safe instrument flexible cable for ocean engineering |
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| CN105355276A (en) * | 2015-12-07 | 2016-02-24 | 福建世纪电缆有限公司 | Cable for electric automobile conduction charging system, and preparation process thereof |
| CN205943529U (en) * | 2016-08-22 | 2017-02-08 | 合肥瀚翔智能科技有限公司 | High strength optical cable |
| CN106653191A (en) * | 2016-12-19 | 2017-05-10 | 南京全信传输科技股份有限公司 | Longitudinal water-tight and air-tight cable and preparation method thereof |
| CN207473149U (en) * | 2017-11-06 | 2018-06-08 | 江苏永鼎股份有限公司 | A kind of light-duty anti-unfirmly closing aerial optical cable |
-
2017
- 2017-11-06 CN CN201711077716.1A patent/CN107608046B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2294522A1 (en) * | 1974-12-13 | 1976-07-09 | Atomic Energy Authority Uk | Wire mesh screened coaxial cable - has flexible metal tape tube round wire mesh leaving air gap in between |
| JPH04264312A (en) * | 1991-02-19 | 1992-09-21 | Yoshida Kogyo Kk <Ykk> | Cable for electronic equipment |
| CN1220024A (en) * | 1996-04-29 | 1999-06-16 | Nk缆线公司 | Multi-layer reinforced and stabilized cable construction |
| US6354349B1 (en) * | 1997-06-20 | 2002-03-12 | The Goodyear Tire & Rubber Company | Seamless reinforcement for rubber composition and products incorporating such material |
| CN1949403A (en) * | 2006-09-05 | 2007-04-18 | 上海乐庭电子线缆有限公司 | Control method for weaving tail extruding tube and extruding type protective layer rubber material using quantity |
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| CN101707071A (en) * | 2009-12-04 | 2010-05-12 | 江苏远洋东泽电缆股份有限公司 | Low-smoke halogen-free light intrinsically-safe instrument flexible cable for ocean engineering |
| CN202694975U (en) * | 2012-07-20 | 2013-01-23 | 安徽国电电缆集团有限公司 | Power cable special for oil well |
| CN105355276A (en) * | 2015-12-07 | 2016-02-24 | 福建世纪电缆有限公司 | Cable for electric automobile conduction charging system, and preparation process thereof |
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| CN107608046A (en) | 2018-01-19 |
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