CN211554402U - Three-unit layer-stranded light optical cable - Google Patents
Three-unit layer-stranded light optical cable Download PDFInfo
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- CN211554402U CN211554402U CN201922462181.0U CN201922462181U CN211554402U CN 211554402 U CN211554402 U CN 211554402U CN 201922462181 U CN201922462181 U CN 201922462181U CN 211554402 U CN211554402 U CN 211554402U
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Abstract
The utility model belongs to the technical field of the optical cable technique and specifically relates to a light-duty optical cable of three unit layer strands formula is related to. The method is characterized in that: the cable comprises a cable core with a three-unit structure, a reinforcing layer and an outer protective layer; the three-unit structure cable core is provided with a reinforcing piece and an optical fiber loose tube, and the reinforcing piece and the optical fiber loose tube are twisted through SZ to form the cable core; the reinforcing layer consists of a plurality of aramid yarns and is coated on the outer surface of the cable core; the outer protective layer is coated on the outer surface of the reinforcing layer. The optical cable core is formed by twisting the sleeve and the reinforcer, has better tensile property, adopts a dry cable core design, has the advantages of environmental protection, high construction efficiency and the like, and has the functions of lightning protection, electromagnetic interference resistance and the like due to the all-dielectric design. The optical cable has the advantages of simple structure, small outer diameter, light weight, superior performance, low manufacturing and transportation cost, convenient construction and suitability for popularization and use.
Description
Technical Field
The utility model relates to an optical cable technical field especially relates to a light-duty optical cable of three unit layer strands formula.
Background
With the advent of the 5G era, the requirements of optical network construction on optical cables are continuously increased, the application occasions of the optical cables are more and more, and the structural forms of the optical cables are also continuously updated. The number of the traditional layer-stranded optical cable core units is generally not less than five, the more the number of the optical cable core units is, the more the consumable materials of the optical cable are, and the larger the self weight of the optical cable is. Therefore, an optical cable with few units, small outer diameter, light weight and excellent performance is researched and developed so as to better meet the current optical network construction requirement.
Disclosure of Invention
An object of the utility model is to overcome prior art's defect, provide a light-duty optical cable of three unit layer strands formula. The optical cable core is of a three-unit layer-stranding structure and is formed by twisting a sleeve and a reinforcing piece through SZ, and the aramid yarn reinforcing layer is wound outside the cable core, so that the optical cable has good mechanical property and environmental property; the optical cable adopts a dry cable core design, has the advantages of environmental protection, high construction efficiency and the like, and has the functions of lightning protection, electromagnetic interference resistance and the like due to the all-dielectric design. The optical cable has the advantages of simple structure, small outer diameter, light weight, excellent performance, low manufacturing and transportation cost and convenient construction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a light-duty optical cable of three unit layer strands which characterized in that: the cable comprises a cable core with a three-unit structure, a reinforcing layer and an outer protective layer; the three-unit structure cable core is provided with a reinforcing piece and an optical fiber loose tube, and the reinforcing piece and the optical fiber loose tube are twisted through SZ to form the cable core; the reinforcing layer consists of a plurality of aramid yarns and is coated on the outer surface of the cable core; the outer protective layer is coated on the outer surface of the reinforcing layer.
The reinforcing part adopts a non-metal reinforcing part, and FRP or KFRP is selected.
The optical fiber loose tube is formed by extruding crystalline plastics, such as PBT (polybutylene terephthalate), PP (polypropylene) and the like; the optical fiber loose tube contains a water-blocking compound and optical fibers, the number of the optical fibers in each tube is generally 2-12, and the surfaces of the optical fibers are identified by different colors of colored layers.
A water blocking yarn is arranged in the center formed by SZ stranding of the reinforcing piece and the optical fiber loose tube for water blocking; at least 2 water-blocking yarns are crossly arranged outside the reinforcing piece for water blocking.
The enhancement layer mainly by many aramid yarns with one-way transposition mode around the surface of package on the cable core, aramid yarn specification and quantity are set for according to the pulling force demand of customer to the optical cable, alternately lay 2 at least water blocking yarns outside the enhancement layer and block water.
The outer protective layer is formed by extruding plastic and is coated on the outer surface of the reinforcing layer, and the outer protective layer is made of polyethylene material or low-smoke halogen-free flame retardant.
The scheme is further as follows: and a tearing rope is longitudinally arranged between the reinforcing layer and the outer protective layer.
The scheme is further as follows: the optical cable can be further provided with a suspension wire, the suspension wire consists of a suspension wire reinforcing piece and a sheath, and the suspension wire is connected with the optical cable main body through a suspension strip.
The scheme is further as follows: the sheath of the suspension wire, the suspension belt and the outer protective layer of the optical cable main body are integrally formed by plastic in an extrusion mode.
Compared with the prior art, the utility model has the advantages that:
1. the optical cable core adopts the design of three-unit layer stranded structure, is formed by SZ transposition of sleeve pipe and reinforcement, and the aramid yarn enhancement layer of cable core outer wrap, and the optical cable possesses better mechanical properties and environmental performance.
2. The optical cable adopts the design of an all-dielectric structure, has the functions of lightning protection, electromagnetic interference resistance and the like, and can be suitable for being laid in a strong lightning area or in the same ditch with the cable.
3. The optical cable adopts a dry cable core design, so that the water resistance requirement is met, the cleaning time of joints after the optical cable is stripped is further saved, and the optical cable is more environment-friendly.
4. The optical cable has the advantages of simple structure, small outer diameter, light weight, excellent performance, low manufacturing and transportation cost and convenient construction.
Description of the drawings:
FIG. 1 is a schematic structural view of a preferred embodiment of the present invention; FIG. 2 is a schematic structural view of a self-supporting three-unit layer-stranded light optical cable.
The specific implementation mode is as follows:
the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Referring to fig. 1, which is a schematic view of a preferred embodiment of the present invention, the present invention relates to a three-unit layer stranded light optical cable, which is characterized in that: the cable comprises a cable core 1 with a three-unit structure, a reinforcing layer 2 and an outer protective layer 3; the three-unit cable core 1 comprises a reinforcing member 11 and an optical fiber loose tube 12, wherein the reinforcing member 11 and the optical fiber loose tube 12 are twisted by SZ to form the cable core 1; the reinforcing layer 2 consists of a plurality of aramid yarns and is coated on the outer surface of the cable core 1; the outer protective layer 3 is coated on the outer surface of the reinforcing layer 2.
As shown in fig. 1, the reinforcement 11 is a non-metal reinforcement, and is made of FRP or KFRP.
As shown in fig. 1, the optical fiber loose tube 12 is formed by extrusion molding of crystalline plastic such as PBT (polybutylene terephthalate), PP (polypropylene), etc.; the optical fiber loose tube 12 contains optical fibers 13 and a water-blocking compound 14, the number of the optical fibers 13 in each tube is generally 2-12, and the optical fibers 13 are identified on the surfaces of the optical fibers 13 by different colors of colored layers.
As shown in fig. 1, a water blocking yarn 15 is arranged in the center formed by SZ stranding of the reinforcement 11 and the optical fiber loose tube 12 for water blocking; at least 2 water-blocking yarns 15 are crossly arranged outside the reinforcing piece 11 for water blocking.
As shown in fig. 1, the reinforcing layer 2 is mainly formed by wrapping a plurality of aramid yarns on the outer surface of the cable core 1 in a unidirectional twisting manner, the specifications and the number of the aramid yarns are set according to the pulling force requirement of a customer on the optical cable, and at least 2 water-blocking yarns 15 are crossly arranged outside the reinforcing layer 2 to block water.
As shown in fig. 1, the outer protective layer 3 is formed by extruding plastic and is coated on the outer surface of the reinforcing layer 2, and the outer protective layer 3 is made of polyethylene or low-smoke halogen-free flame retardant.
As shown in fig. 1, the above scheme further comprises: and a tearing rope 4 is longitudinally arranged between the reinforcing layer 2 and the outer protective layer 3.
As shown in fig. 2, the above scheme further includes: the optical cable can be further provided with a suspension wire 5, the suspension wire 5 consists of a suspension wire reinforcing part 51 and a sheath 52, and the suspension wire 5 is connected with the optical cable main body through a suspension strip 6.
As shown in fig. 2, the above scheme further includes: the sheath 52 of the suspension wire 5, the suspension band 6 and the outer sheath 3 of the main body portion of the optical cable are integrally extruded from plastic.
Compared with the prior art, the utility model has the advantages that:
1. the optical cable core adopts the design of three-unit layer stranded structure, is formed by SZ transposition of sleeve pipe and reinforcement, and the aramid yarn enhancement layer of cable core outer wrap, and the optical cable possesses better mechanical properties and environmental performance.
2. The optical cable adopts the design of an all-dielectric structure, has the functions of lightning protection, electromagnetic interference resistance and the like, and can be suitable for being laid in a strong lightning area or in the same ditch with the cable.
3. The optical cable adopts a dry cable core design, so that the water resistance requirement is met, the cleaning time of joints after the optical cable is stripped is further saved, and the optical cable is more environment-friendly.
4. The optical cable has the advantages of simple structure, small outer diameter, light weight, excellent performance, low manufacturing and transportation cost and convenient construction.
Of course, the present invention has been described in detail with reference to the embodiments, and only for the purpose of illustrating the technical conception and the features of the present invention, the purpose of the present invention is to enable those skilled in the art to understand the contents of the present invention and implement the same, therefore, all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. The utility model provides a light-duty optical cable of three unit layer strands which characterized in that: the cable comprises a cable core (1) with a three-unit structure, a reinforcing layer (2) and an outer protective layer (3); the three-unit structure cable core (1) is provided with a reinforcing piece (11) and an optical fiber loose tube (12), and the reinforcing piece (11) and the optical fiber loose tube (12) are twisted by SZ to form the cable core (1); the reinforcing layer (2) is composed of a plurality of aramid yarns and covers the outer surface of the cable core (1); the outer protective layer (3) is coated on the outer surface of the reinforcing layer (2).
2. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: the reinforcing piece (11) is a non-metal reinforcing piece, and FRP or KFRP is selected.
3. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: the optical fiber loose tube (12) is formed by crystalline plastic through extrusion; the optical fiber loose tube (12) contains optical fibers (13) and a water-blocking compound (14), the number of the optical fibers (13) in each tube is generally 2-12, and the surface of each optical fiber (13) is identified by the optical fibers (13) through different colors of colored layers.
4. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: a water blocking yarn (15) is arranged in the center formed by SZ twisting of the reinforcing piece (11) and the optical fiber loose tube (12) for water blocking; at least 2 water-blocking yarns (15) are crossly arranged outside the reinforcing piece (11) for water blocking.
5. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: enhancement layer (2) mainly by many aramid yarns with one-way transposition mode around the package on the surface of cable core (1), aramid yarn specification and quantity are set for according to the pulling force demand of customer to the optical cable, enhancement layer (2) are outer alternately to lay 2 at least yarn (15) that block water and block water.
6. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: the outer protective layer (3) is formed by extruding plastic and is coated on the outer surface of the enhancement layer (2), and the outer protective layer (3) is made of polyethylene materials or low-smoke halogen-free flame retardant fuels.
7. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: in the scheme, a tearing rope (4) is longitudinally arranged between the reinforcing layer (2) and the outer protective layer (3).
8. A three-unit layer-stranded light-weight optical cable according to claim 1, wherein: according to the scheme, the optical cable can be further provided with a suspension wire (5), the suspension wire (5) consists of a suspension wire reinforcing piece (51) and a sheath (52), and the suspension wire (5) is connected with the optical cable main body through a suspension strip (6).
9. A three-unit layer-stranded light-weight optical cable according to claim 8, wherein: in the scheme, the sheath (52) of the suspension wire (5), the suspension strip (6) and the outer protective layer (3) of the optical cable main body part are integrally formed by plastic in an extrusion mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462181.0U CN211554402U (en) | 2019-12-31 | 2019-12-31 | Three-unit layer-stranded light optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462181.0U CN211554402U (en) | 2019-12-31 | 2019-12-31 | Three-unit layer-stranded light optical cable |
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| Publication Number | Publication Date |
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| CN211554402U true CN211554402U (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922462181.0U Active CN211554402U (en) | 2019-12-31 | 2019-12-31 | Three-unit layer-stranded light optical cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291346A (en) * | 2022-08-26 | 2022-11-04 | 江苏亨通光电股份有限公司 | Temperature difference-resistant three-unit biological-bite-preventing optical cable and manufacturing process thereof |
-
2019
- 2019-12-31 CN CN201922462181.0U patent/CN211554402U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115291346A (en) * | 2022-08-26 | 2022-11-04 | 江苏亨通光电股份有限公司 | Temperature difference-resistant three-unit biological-bite-preventing optical cable and manufacturing process thereof |
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