CN220820329U - Bending-resistant optical fiber structure - Google Patents
Bending-resistant optical fiber structure Download PDFInfo
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- CN220820329U CN220820329U CN202322716725.8U CN202322716725U CN220820329U CN 220820329 U CN220820329 U CN 220820329U CN 202322716725 U CN202322716725 U CN 202322716725U CN 220820329 U CN220820329 U CN 220820329U
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- optical fiber
- protective layer
- periphery
- aramid fiber
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 66
- 238000005452 bending Methods 0.000 title claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 113
- 239000011241 protective layer Substances 0.000 claims abstract description 33
- 239000002184 metal Substances 0.000 claims abstract description 26
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 19
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 15
- 239000004945 silicone rubber Substances 0.000 claims abstract description 15
- 238000009954 braiding Methods 0.000 claims abstract description 11
- 239000003365 glass fiber Substances 0.000 claims abstract description 8
- 239000011247 coating layer Substances 0.000 claims abstract description 7
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000009941 weaving Methods 0.000 claims abstract description 4
- 229920006231 aramid fiber Polymers 0.000 claims description 37
- 229910001220 stainless steel Inorganic materials 0.000 claims description 26
- 239000010935 stainless steel Substances 0.000 claims description 26
- 239000004760 aramid Substances 0.000 claims description 6
- 229920003235 aromatic polyamide Polymers 0.000 claims description 6
- 238000005253 cladding Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 6
- 238000000576 coating method Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009940 knitting Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a bending-resistant optical fiber structure, which comprises: an optical fiber tow; the optical fiber of the optical fiber bundle comprises: glass fibers and a resin coating layer coated on the outer circumference of the glass fibers; the periphery of the optical fiber tows is provided with a metal protective layer for rigidly supporting the optical fiber tows; the periphery of the metal protective layer is provided with a braiding reinforcing layer for improving the tensile property of the fiber bundles; the periphery of the braided reinforcing layer is also provided with a silicon rubber protective layer which is used for flexibly supporting the fiber bundles; a plurality of tensile filling ropes used for improving the tensile property and the torsion resistance of the silicon rubber protective layer are arranged in the silicon rubber protective layer in a penetrating way. Has the following beneficial effects: through setting up metal protection layer, weaving enhancement layer and silicone rubber protective layer in the periphery of optic fibre silk bundle, effectively improve whole tensile resistance, the torsion resistance of optic fibre silk bundle structure, effectively protect inside optic fibre silk bundle and optic fibre silk outer resin coating, avoid the damage of optic fibre inoxidizing coating.
Description
Technical Field
The utility model relates to the technical field of composite optical fibers of cables, in particular to a bending-resistant optical fiber structure.
Background
With the maturity of technologies such as electrical control, electronic monitoring, photoelectric compounding and the like, cables used by various functions are compounded in one cable, and great convenience is brought to the installation, the use, the equipment maintenance and the like of the cables. The inner and outer jackets of the existing optical fiber composite cable are made of rubber materials, so that the inner and outer jackets are vulcanized under the condition of high temperature and high pressure (about 185 ℃), and the protective layer of the optical fiber wire is difficult to maintain the original performance under the high temperature and high pressure environment until the optical fiber structure inside the cable is provided with the rubber protective layer, and the optical fiber structure is easy to be damaged after the optical fiber protective layer lacks the original protective layer performance. When using the cable, the tensile strength and the bending torsion intensity of different scene applications to the cable are different, and the optic fibre in the current optic fibre composite cable simple structure generally coats one deck rubber protection layer at the periphery of optic fibre silk bundle, and thus structure tensile resistance performance and torsion resistance performance are low, and thereby the inside optic fibre silk bundle breaks easily when meetting Jiang Lajiang and can't use, and safety in utilization performance is low and life-span is short.
Disclosure of utility model
In order to solve the problems, the technical scheme provided by the utility model is as follows:
A bend-resistant optical fiber structure comprising: an optical fiber tow; the optical fiber of the optical fiber bundle comprises: glass fibers and a resin coating layer coated on the outer circumference of the glass fibers; the periphery of the optical fiber tows is provided with a metal protective layer for rigidly supporting the optical fiber tows; the periphery of the metal protective layer is provided with a braiding reinforcing layer for improving the tensile property of the fiber bundles; the periphery of the braided reinforcing layer is also extruded with a silicone rubber protective layer for flexibly supporting the fiber bundles; a plurality of tensile filling ropes used for improving the tensile property and the torsion resistance of the silicon rubber protective layer are arranged in the silicon rubber protective layer in a penetrating way.
Further, the knitting reinforcement layer is formed by knitting with aramid yarn.
Further, the braiding reinforcing layer comprises two aramid fiber layers for improving the tensile property; one of the two aramid fiber layers is arranged in the silicone rubber protection layer in a blending way; the other layer of the two aramid fiber layers is coated on the periphery of the metal protective layer.
Further, a salient point layer for matching with the other layer in the aramid fiber layer to limit the cladding stability of the other layer in the aramid fiber layer is formed on the outer side of the metal protective layer; the weaving density of the other layer in the aramid fiber layer is 8% -10% for inserting the salient points of the salient point layer.
Further, the bump of the bump layer includes: a cylinder formed by a metal protective layer and a conical insert at the end of the cylinder.
Further, the metal protection layer is formed by adopting stainless steel strip spiral armor; the stainless steel strip is formed with a smooth spiral coating and a bump layer in its extension direction.
Further, the width value of the bump layer in the width direction of the stainless steel belt is smaller than the width value of the spiral cover layer in the width direction of the stainless steel belt.
Further, the width value of the bump layer in the width direction of the stainless steel belt is larger than the width value of the spiral cover layer in the width direction of the stainless steel belt.
Further, aramid fiber bundles are arranged between the two aramid fiber layers in a crossing manner in the axial direction of the two aramid fiber layers; the two ends of the aramid fiber tows are respectively woven and penetrated into the two layers of aramid fiber tows.
Further, the tensile filling rope is formed by winding aramid fiber; the ratio of the diameter of the tensile fill cord to the thickness value of the silicone rubber protective layer was 0.2.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:
According to the bending-resistant optical fiber structure, the metal protection layer, the woven reinforcing layer and the silicon rubber protection layer are arranged on the periphery of the optical fiber tows, so that the overall tensile resistance and torsion resistance of the optical fiber tows are effectively improved, the optical fiber tows and the resin coating outside the optical fiber tows are effectively protected, the damage of the optical fiber protection layer is avoided, the use safety is high, and the service life is long.
Drawings
FIG. 1 is a schematic illustration of a bend resistant optical fiber structure in accordance with the present application;
FIG. 2 is a schematic view of a stainless steel strip used for a metallic protective layer of a bend resistant optical fiber structure in accordance with the present application;
The bending-resistant optical fiber structure 10, an optical fiber tow 11, a metal protection layer 12, a bump layer 121, a woven reinforcing layer 13, an aramid fiber yarn layer 131, an aramid fiber tow 132, a silicone rubber protection layer 14, a tensile filling rope 15 and a stainless steel belt 16.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to the drawings and examples.
The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings. The first, second, etc. words are provided for convenience in describing the technical scheme of the present utility model, and have no specific limitation, and are all generic terms, and do not constitute limitation to the technical scheme of the present utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. The technical schemes in the same embodiment and the technical schemes in different embodiments can be arranged and combined to form a new technical scheme without contradiction or conflict, which is within the scope of the utility model.
As shown in fig. 1 to 2, a bending-resistant optical fiber structure 10 according to the present utility model includes: an optical fiber strand 11, the optical fiber of the optical fiber strand 11 comprising: glass fiber and resin coating layer coated on the periphery of the glass fiber.
As a further structure, the outer periphery of the optical fiber tow 11 is provided with a metal protection layer 12 for hard supporting the optical fiber tow 11, the outer periphery of the metal protection layer 12 is provided with a braiding reinforcing layer 13 for improving the tensile property of the optical fiber tow 11, the outer periphery of the braiding reinforcing layer 13 is also extrusion-wrapped with a silicone rubber protection layer 14 for flexibly supporting the optical fiber tow 11, and a plurality of tensile filling ropes 15 are arranged in the silicone rubber protection layer 14 in a penetrating manner for improving the tensile property and the torsion resistance of the silicone rubber protection layer 14, so that the tensile resistance and the torsion resistance of the whole optical fiber structure are further improved, and the optical fiber structure can be designed to effectively protect the optical fiber tow 11 inside without turning round when the cable is twisted or stored at high strength during use.
In the above-described embodiment, the reinforcing layer 13 is woven from aramid yarns. Specifically, the woven reinforcing layer 13 includes two layers of aramid fiber yarn layers 131 for improving the tensile strength, one of the two layers of aramid fiber yarn layers 131 is arranged in the silicone rubber protective layer 14 in a blending manner, and the other of the two layers of aramid fiber yarn layers 131 is coated on the periphery of the metal protective layer 12. The protective layer on the outer periphery of the fiber bundle 11 can be integrated, so that the overall structure is high in strength, separation is not easy to occur, and the anti-twisting capacity is high.
Further, the outer side of the metal protection layer 12 is formed with a bump layer 121 for cooperating with another layer of the aramid yarn layer 131 to define the cladding stability of the other layer of the aramid yarn layer 131, and the weaving density of the other layer of the aramid yarn layer 131 is 8% -10% for the bump insertion of the bump layer 121. The stability of the connection structure between the metal protection layer 12 and the aramid fiber layer 131 can be ensured through the limiting structure, and the overall tensile property is improved. Specifically, the bumps of the bump layer 121 include: a cylinder formed by the metal cover 12 and a tapered insert at the end of the cylinder. The conical insertion part is convenient to insert into a braiding gap of another layer in the aramid fiber yarn layer 131, and the appearance of the cylinder has no edges and corners, so that the aramid fiber yarn layer 131 is not damaged.
Further, the metal protection layer 12 is formed by spiral armouring with a stainless steel belt 16. The stainless steel strip 16 is formed with a smooth spiral coating and bump layer 121 in its extension direction. Therefore, the spiral structure of the stainless steel belt 16 is not influenced while the connecting structure is ensured, and the rigid support stability of the stainless steel layer is ensured.
As an alternative embodiment, the width of the bump layer 121 along the width direction of the stainless steel strip 16 is smaller than the width of the spiral cover layer along the width direction of the stainless steel strip 16, so that the adjustment of the spiral cover area of the stainless steel strip 16 is facilitated, and the arrangement is performed according to practical requirements.
As an alternative embodiment, the width value of the bump layer 121 along the width direction of the stainless steel band 16 is greater than the width value of the spiral cover layer along the width direction of the stainless steel band 16, so that when the spiral cover area of the stainless steel band 16 is fixed, the spiral stainless steel band 16 can be limited by the interference effect of the bump layer 121 and the edge of the stainless steel band 16, the uniformity of the spiral structure is ensured, and the strength of the spiral structure in the extending direction of the optical fiber tows 11 is uniform.
As a specific embodiment, the two aramid fiber filament layers 131 are alternately provided with the aramid fiber tows 132 in the axial direction, and two ends of the aramid fiber tows 132 are respectively woven and penetrated into the two aramid fiber filament layers 131, so that the anti-twisting performance of the optical fiber structure can be further improved while the anti-twisting performance of the optical fiber structure can be ensured, and the buffering and the torsion-allowing performances of the optical fiber structure can be simultaneously provided.
As a specific embodiment, the tensile filling rope 15 is formed by winding aramid fiber, and has good corrosion resistance and high structural strength. The ratio of the diameter of the tensile filling cord 15 to the thickness value of the silicone rubber protective layer 14 is 0.2 to improve the tensile strength while ensuring the structural performance stability of the silicone rubber protective layer 14, and the structure has high mechanical structural strength and lighter weight.
That is, the above-mentioned bending-resistant optical fiber structure 10 is provided with the metal protection layer 12, the woven reinforcement layer 13 and the silicone rubber protection layer 14 on the outer periphery of the optical fiber tow 11, so as to effectively support and protect the optical fiber tow 11 in a rigid and flexible manner, improve the bending performance of the whole cable, and effectively prolong the service life of the optical fiber structure. Through carrying out institutional advancement to metal protection layer 12, weave enhancement layer 13 and silicone rubber protection layer 14, the whole tensile resistance of more effectively improving fiber strand 11 structure, torsion resistance, effectively protect inside fiber strand 11 and fiber external resin coating, avoid fiber protection layer damage, the safety in utilization is high and long service life.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the utility model is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (10)
1. A bend-resistant optical fiber structure comprising: an optical fiber tow; the optical fiber of the optical fiber bundle comprises: a glass fiber and a resin coating layer coated on an outer circumference of the glass fiber; it is characterized in that the method comprises the steps of,
The periphery of the optical fiber tows is provided with a metal protection layer for rigidly supporting the optical fiber tows;
The periphery of the metal protective layer is provided with a braiding reinforcing layer for improving the tensile property of the optical fiber tows;
The periphery of the braiding reinforcing layer is also extruded with a silicone rubber protective layer for flexibly supporting the fiber bundles;
And a plurality of tensile filling ropes used for improving the tensile property and the torsion resistance of the silicon rubber protective layer are arranged in the silicon rubber protective layer in a penetrating way.
2. The bend-resistant optical fiber structure according to claim 1, wherein,
The braiding reinforcing layer is formed by braiding aramid yarns.
3. The bending resistant optical fiber structure according to claim 2, wherein,
The braiding reinforcing layer comprises two aramid fiber yarn layers for improving tensile strength;
one of the two aramid fiber layers is arranged in the silicone rubber protection layer in a blending way;
The other of the two aramid fiber layers is coated on the periphery of the metal protective layer.
4. A bending resistant optical fiber structure according to claim 3, wherein,
The outer side of the metal protective layer is provided with a salient point layer which is used for being matched with the other layer in the aramid fiber layer to limit the cladding stability of the other layer in the aramid fiber layer;
the weaving density of the other layer in the aramid fiber layer is 8% -10% for inserting the salient points of the salient point layer.
5. The bending resistant optical fiber structure according to claim 4, wherein,
The bump of the bump layer comprises: a cylinder formed by a metal protective layer and a conical insert at the end of the cylinder.
6. The bending resistant optical fiber structure according to claim 4, wherein,
The metal protection layer is formed by adopting stainless steel strip spiral armor;
The stainless steel strip is formed with a smooth spiral coating layer and the bump layer in an extension direction thereof.
7. The bending resistant optical fiber structure according to claim 6, wherein,
The width value of the bump layer along the width direction of the stainless steel belt is smaller than that of the spiral coating layer along the width direction of the stainless steel belt.
8. The bending resistant optical fiber structure according to claim 6, wherein,
The width value of the bump layer along the width direction of the stainless steel belt is larger than the width value of the spiral coating layer along the width direction of the stainless steel belt.
9. A bending resistant optical fiber structure according to claim 3, wherein,
Aramid fiber bundles are arranged between the two aramid fiber layers in a crossing manner in the axial direction of the two aramid fiber layers;
the two ends of the aramid fiber tows are respectively woven and penetrated into the two layers of the aramid fiber tows.
10. The bend-resistant optical fiber structure according to claim 1, wherein,
The tensile filling rope is formed by winding aramid fiber;
The ratio of the diameter of the tensile filling rope to the thickness value of the silicon rubber protective layer is 0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322716725.8U CN220820329U (en) | 2023-10-10 | 2023-10-10 | Bending-resistant optical fiber structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322716725.8U CN220820329U (en) | 2023-10-10 | 2023-10-10 | Bending-resistant optical fiber structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220820329U true CN220820329U (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322716725.8U Active CN220820329U (en) | 2023-10-10 | 2023-10-10 | Bending-resistant optical fiber structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220820329U (en) |
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2023
- 2023-10-10 CN CN202322716725.8U patent/CN220820329U/en active Active
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