CN219916019U - Compression-resistant optical cable with protection function - Google Patents
Compression-resistant optical cable with protection function Download PDFInfo
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- CN219916019U CN219916019U CN202320177426.9U CN202320177426U CN219916019U CN 219916019 U CN219916019 U CN 219916019U CN 202320177426 U CN202320177426 U CN 202320177426U CN 219916019 U CN219916019 U CN 219916019U
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- cable core
- cable
- optical cable
- core structure
- sheath
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- 230000003287 optical effect Effects 0.000 title claims abstract description 64
- 230000006835 compression Effects 0.000 title claims abstract description 20
- 238000007906 compression Methods 0.000 title claims abstract description 20
- 230000002787 reinforcement Effects 0.000 claims abstract description 20
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 229920002748 Basalt fiber Polymers 0.000 claims abstract description 15
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 28
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 7
- 239000004760 aramid Substances 0.000 claims description 6
- 229920003235 aromatic polyamide Polymers 0.000 claims description 6
- 239000011253 protective coating Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 239000004698 Polyethylene Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 229920001778 nylon Polymers 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The compression-resistant optical cable with the protection function comprises an optical cable sheath and a cable core structure arranged at the central position inside the optical cable sheath, wherein the cable core structure mainly comprises a plurality of cable core units which are integrally arranged in an annular array, and each cable core unit consists of an optical fiber and an optical fiber sheath arranged outside the optical fiber; the inner side center of the cable core structure is provided with an FRP reinforcement, a polygonal cushion layer is arranged between the FRP reinforcement and the cable core structure, the polygonal cushion layer comprises a main body part and corner parts, the main body part is arranged on the periphery of the FRP reinforcement in a surrounding mode, the number of the corner parts is at least three, and all the corner parts are uniformly distributed on the main body part and extend outwards in the radial direction; the number of the cable core structures is consistent with that of the corner parts, and the cable core units are arranged at intervals, and the corner parts are respectively positioned in the intervals of the cable core units; the periphery of the cable core structure is provided with a basalt fiber tape layer. The utility model can play a more effective compression-resistant protection role on the internal optical cable, is firm and stable, and has stronger practicability.
Description
Technical Field
The utility model relates to an optical cable, in particular to a compression-resistant optical cable with a protection function, and belongs to the technical field of optical cables.
Background
In recent years, with the wide application of optical cable technology, the requirements on the performance of the optical cable are also increasing. For optical cables, the compression resistance is very important, but most optical cables are easily damaged and broken under the action of external pressure due to the interference of external storage environment, transportation environment and other factors, often have no very excellent compression resistance, and are easy to cause the problems of unsmooth communication and even communication interruption in use.
At present, a mode of improving the protective performance of the optical cable mostly adopts a mode of coating a plurality of rigid or relatively high-hardness structural layers outside the optical fiber to reduce damage to the optical cable caused by external pressure as much as possible. The multi-layer rigid or relatively stiff structural layer is generally referred to herein as a reinforcing core of steel wire material disposed within the cable. Although the steel wire is used as the reinforcing core wire of the optical cable, the strength of the optical cable can be increased to a certain extent, and the compression resistance is improved. However, as the corrosion resistance of the steel wire is poor and the service time is short, harmful gas can be generated to influence the performance of the optical cable; the conductivity of the steel wire is strong, and under the influence of high-voltage electricity and lightning, induced current can be generated, and the performance of the optical cable can be influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the compression-resistant optical cable with the protection function, which can play a more effective compression-resistant protection role on the internal optical cable, is firm and stable and has stronger practicability.
The technical scheme adopted for solving the technical problems is as follows:
the compression-resistant optical cable with the protection function comprises an optical cable sheath and a cable core structure arranged at the central position inside the optical cable sheath, wherein the cable core structure mainly comprises a plurality of cable core units which are integrally arranged in an annular array, and each cable core unit consists of an optical fiber and an optical fiber sheath arranged outside the optical fiber; the cable comprises a cable core structure, and is characterized in that an FRP (fiber reinforced Plastic) reinforcement is arranged at the center of the inner side of the cable core structure, a polygonal cushion layer is arranged between the FRP reinforcement and the cable core structure, the polygonal cushion layer comprises a main body part and corner parts, the main body part is arranged on the periphery of the FRP reinforcement in a surrounding mode, the corner parts are arranged on the periphery of the main body part, the number of the corner parts is at least three, and all the corner parts are uniformly distributed on the main body part and extend outwards in the radial direction; the number of the cable core structures is consistent with that of the corner parts, a plurality of cable core units are arranged at intervals, and the corners of the polygonal cushion layer are respectively positioned in the intervals of the cable core units; the periphery of the cable core structure is provided with basalt fiber tape layers for tightly combining the cable core structure with the polygonal cushion layer and the FRP reinforcing piece.
Optionally, the cable core structure includes five cable core units, the polygonal cushion layer is a five-star cushion layer, and five corners of the five-star cushion layer are respectively located in intervals of the five cable core units.
Optionally, the five-star cushion layer comprises a plurality of reinforcing gaskets, all the reinforcing gaskets are connected end to end and are surrounded to form a five-star shape, the FRP reinforcing part is positioned at the center of an inner cavity of the five-star shape, and rubber filler is filled in the inner cavity.
Optionally, the optical cable sheath is arranged to have a regular polygon shape.
Optionally, the optical cable sheath adopts a regular hexagonal sheath body.
Optionally, at least one layer of protective coating is arranged on the outer wall of the optical cable sheath.
Optionally, a fireproof belt layer is further arranged between the optical cable sheath and the basalt fiber belt layer.
Optionally, an aramid yarn layer and a water-blocking tape layer are sequentially arranged between the basalt fiber tape layer and the cable core structure from outside to inside.
Compared with the prior art, the compression-resistant optical cable with the protection function has the advantages that the FRP reinforcement and the basalt fiber tape layer are respectively arranged inside and outside the cable core structure, so that sandwich protection is formed on the internal optical fiber, meanwhile, a stable polygonal cushion layer is arranged between the FRP reinforcement and the cable core structure, the corners of the polygonal cushion layer are inserted into the intervals between the cable core units, and the separation and core-wrapping type protection is performed on each internal cable core unit; finally, the composite structure of the FRP reinforcement, the polygonal cushion layer and the basalt fiber tape layer is utilized, so that the compressive property of the optical cable is comprehensively improved, the strength of the optical cable is enhanced, deformation and fracture caused by bending can be avoided, and the integral structure is firm and stable, and has stronger practicability.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic diagram of the structure of an embodiment of the present utility model.
The reference numerals in the drawings illustrate: 1-an optical cable sheath; 2-a cable core structure; 21-a cable core unit; 211-optical fiber; 212-a fiber jacket; 3-FRP reinforcement; 4-a polygonal cushion layer; 4-1-a main body portion; 4-2-corner; 41-reinforcing a gasket; 5-basalt fiber tape layers; 6-a fire-resistant tape layer; 7-aramid yarn layers; 8-a water blocking tape layer.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Fig. 1 shows a schematic structural diagram of a preferred embodiment of the present utility model, in which a compression-resistant optical cable with protection function is shown, and the compression-resistant optical cable includes an optical cable sheath 1 and a cable core structure 2 disposed in a central position inside the optical cable sheath 1, wherein the cable core structure 2 is mainly composed of a plurality of cable core units 21 integrally arranged in a ring-shaped array, and each cable core unit 21 is composed of an optical fiber 211 and an optical fiber sheath 212 disposed outside the optical fiber 211; the cable core structure 2 comprises five cable core units 21 which are arranged at intervals, wherein the FRP reinforcement 3 is arranged in the center of the inner side of the cable core structure 2, a five-star cushion layer is arranged between the FRP reinforcement 3 and the cable core structure 2, and five corners of the five-star cushion layer are respectively positioned in the intervals of the five cable core units 21; the periphery of the cable core structure 2 is provided with a basalt fiber tape layer 5 for tightly combining the cable core structure 2 with the five-star cushion layer and the FRP reinforcement 3.
FRP reinforcement 3, five stars bed course and basalt fiber belt layer 5 have compounded the resistance to compression skeleton that has formed acting on every cable core unit 21 in inside optical cable sheath 1, and the resistance to compression structure that crossing single dimension set up, the compressive property of optical cable is promoted comprehensively, can avoid receiving bending and the circumstances emergence of deformation fracture by the probability.
In practice, a filler, such as a fiber optic grease, may also be preferably disposed between the fiber optic jacket 212 and the optical fibers 211 in order to further enhance the moisture and mechanical cushioning properties of the cable. Also, a filler, such as a cable ointment, may be provided between the core units 21 inside the cable jacket 1.
In this specific embodiment, the five-star cushion layer includes a plurality of reinforcing gaskets 41, all reinforcing gaskets 41 are surrounded in a five-star shape in an end-to-end manner, the FRP reinforcement 3 is located at the center of a cavity of the five-star shape, and rubber filler is filled in the cavity. The polyethylene PE and the LSZH which are low-smoke halogen-free materials can be selected as the materials of the cushion layer, the PE is a conventional material, the flexibility is good, and the LSZH which is the low-smoke halogen-free material has better flame retardance.
The reinforcing gaskets 41 are uniformly distributed between the cable core unit 21 and the FRP reinforcing member 3, the FRP reinforcing member 3 is used as a reinforcing core of the cable core structure 2, and the cavity generated by the FRP reinforcing member and the optical fiber sheath 212 is filled with rubber filler, so that the reinforcing gaskets 41 are matched with the rubber filler, and the capability of the optical cable for resisting deformation or damage caused by external force can be further enhanced.
In this embodiment, the optical cable sheath 1 adopts a regular hexagonal sheath body. Without being limited thereto, the outer shape of the cable sheath 1 is preferably provided as a regular polygon. Thus, the positioning is more convenient, and the displacement during storage, transportation and construction is avoided.
In this embodiment, a plurality of layers of protective coatings are further disposed on the outer wall of the optical cable sheath 1. The multiple layers are set as a preferable scheme, not limited thereto, and at least one layer of protective coating is arranged on the outer wall of the optical cable sheath 1. The material of the protective coating can be HDPE polyethylene, nylon, polyurethane TPU, LSZH (low smoke zero halogen) material and the like, and the protective coating has the effects of friction resistance, high temperature resistance and strong corrosion resistance, and can effectively improve the durability of the FRP optical cable reinforcing core.
In this specific embodiment, a fireproof belt layer 6 is further disposed between the optical cable jacket 1 and the basalt fiber belt layer 5. The layer of fire-resistant tape 6 can expand rapidly upon contact with a flame to form a carbide body, preventing the flame from igniting the cable.
In this specific embodiment, an aramid yarn layer 7 and a water-blocking tape layer 8 are sequentially arranged between the basalt fiber tape layer 5 and the cable core structure 2 from outside to inside. The arrangement of the aramid yarn layer 7 and the water-blocking tape layer 8 can further optimize the comprehensive performance of the optical cable, because the aramid yarn has the special performances of low density, very high tensile modulus, higher breaking strength, lower breaking elongation and the like; at higher temperature, the fiber reinforced plastic composite material can keep inherent stability, very low shrinkage, lower creep and very high glass transition temperature, has higher corrosion resistance and non-conductivity, has stronger chemical resistance besides strong acid and strong alkali, and is a superior fiber reinforced plastic composite material. The water blocking tape can enable the optical cable to have waterproof performance and can block water in the external environment from entering the inner cable core structure 2.
The compression-resistant optical cable with the protection function has the advantages that the outer layer is made of the multi-structure thin layer, the structure is firm and stable, the basalt fiber strips are uniform in interweaving points, firm in texture and resistant to scraping, the strength is high, the compression-resistant optical cable with the protection function also has multiple excellent performances such as electric insulation, corrosion resistance and high temperature resistance, the protection effect is achieved on the internal optical cable, the five-star cushion layer is arranged in the internal optical cable, the cables are in a separation environment, the performance and the quality are stable, and the practicability is high.
In other embodiments of the present utility model, as long as it is satisfied that a polygonal cushion layer 4 is provided between the FRP reinforcement 3 and the cable core structure 2, the polygonal cushion layer 4 includes a main body portion 4-1 surrounding the FRP reinforcement 3 and corner portions 4-2 provided at the outer periphery of the main body portion 4-1, the number of the corner portions 4-2 is at least three, and all the corner portions 4-2 are uniformly distributed on the main body portion 4-1 and extend radially outward; the number of the cable core structures 2 is consistent with that of the corner portions 4-2, the cable core units 21 are arranged at intervals, the corner portions 4-2 of the polygonal cushion layer 4 are respectively positioned in the intervals of the cable core units 21, and the aim of optimizing the compression resistance can be achieved.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, but any simple modification and equivalent variation of the above embodiment according to the technical spirit of the present utility model falls within the scope of the present utility model.
Claims (8)
1. The compression-resistant optical cable with the protection function comprises an optical cable sheath and a cable core structure arranged at the central position inside the optical cable sheath, wherein the cable core structure mainly comprises a plurality of cable core units which are integrally arranged in an annular array, and each cable core unit consists of an optical fiber and an optical fiber sheath arranged outside the optical fiber; the method is characterized in that: the cable comprises a cable core structure, and is characterized in that an FRP (fiber reinforced Plastic) reinforcement is arranged at the center of the inner side of the cable core structure, a polygonal cushion layer is arranged between the FRP reinforcement and the cable core structure, the polygonal cushion layer comprises a main body part and corner parts, the main body part is arranged on the periphery of the FRP reinforcement in a surrounding mode, the corner parts are arranged on the periphery of the main body part, the number of the corner parts is at least three, and all the corner parts are uniformly distributed on the main body part and extend outwards in the radial direction; the number of the cable core structures is consistent with that of the corner parts, a plurality of cable core units are arranged at intervals, and the corners of the polygonal cushion layer are respectively positioned in the intervals of the cable core units; the periphery of the cable core structure is provided with basalt fiber tape layers for tightly combining the cable core structure with the polygonal cushion layer and the FRP reinforcing piece.
2. The pressure-resistant optical cable with protection function according to claim 1, wherein: the cable core structure comprises five cable core units, the multi-angle cushion layer is a five-star cushion layer, and five corners of the five-star cushion layer are respectively positioned in intervals of the five cable core units.
3. The pressure-resistant optical cable with protection function according to claim 2, wherein: the five-star cushion layer comprises a plurality of reinforcing gaskets, all the reinforcing gaskets are connected end to end and are surrounded to form a five-star shape, the FRP reinforcing part is positioned at the center of an inner cavity of the five-star shape, and rubber filler is filled in the inner cavity.
4. A pressure-resistant optical cable with protection function according to claim 3, characterized in that: the appearance of the optical cable sheath is arranged into a regular polygon.
5. The pressure-resistant optical cable with protection function according to claim 4, wherein: the optical cable sheath adopts a regular hexagonal sheath body.
6. The pressure-resistant optical cable with protection function according to claim 4, wherein: and at least one layer of protective coating is arranged on the outer wall of the optical cable sheath.
7. The pressure-resistant optical cable with protection function according to claim 6, wherein: and a fireproof belt layer is further arranged between the optical cable sheath and the basalt fiber belt layer.
8. The pressure-resistant optical cable with protection function according to claim 7, wherein: an aramid yarn layer and a water-blocking tape layer are sequentially arranged between the basalt fiber tape layer and the cable core structure from outside to inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320177426.9U CN219916019U (en) | 2023-02-07 | 2023-02-07 | Compression-resistant optical cable with protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320177426.9U CN219916019U (en) | 2023-02-07 | 2023-02-07 | Compression-resistant optical cable with protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219916019U true CN219916019U (en) | 2023-10-27 |
Family
ID=88466484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320177426.9U Active CN219916019U (en) | 2023-02-07 | 2023-02-07 | Compression-resistant optical cable with protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219916019U (en) |
-
2023
- 2023-02-07 CN CN202320177426.9U patent/CN219916019U/en active Active
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