CN114167562B - Telescopic torsion-type multi-core spring optical cable - Google Patents
Telescopic torsion-type multi-core spring optical cable Download PDFInfo
- Publication number
- CN114167562B CN114167562B CN202111517449.1A CN202111517449A CN114167562B CN 114167562 B CN114167562 B CN 114167562B CN 202111517449 A CN202111517449 A CN 202111517449A CN 114167562 B CN114167562 B CN 114167562B
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- Prior art keywords
- groined
- retardant sheath
- strength
- strength flame
- flame
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Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 70
- 239000003063 flame retardant Substances 0.000 claims abstract description 57
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000002184 metal Substances 0.000 claims abstract description 48
- 239000013307 optical fiber Substances 0.000 claims abstract description 34
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 5
- 230000002787 reinforcement Effects 0.000 claims description 24
- 229910052755 nonmetal Inorganic materials 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims 1
- 229920001577 copolymer Polymers 0.000 claims 1
- 239000011151 fibre-reinforced plastic Substances 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 4
- 230000007334 memory performance Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000004760 aramid Substances 0.000 description 2
- 229920003235 aromatic polyamide Polymers 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/4436—Heat resistant
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
Abstract
The invention relates to a telescopic torsion type multi-core spring optical cable, which comprises an optical unit, a groined-shaped metal reinforcing piece, a positioning hanging hole, a high-strength flame-retardant sheath, optical fibers and a high-modulus nonmetallic filling layer, wherein the high-strength flame-retardant sheath is in the shape of a spiral spring, the optical unit and the groined-shaped metal reinforcing piece are arranged in the high-strength flame-retardant sheath, the optical unit and the groined-shaped metal reinforcing piece are both in spiral shape along with the high-strength flame-retardant sheath, the optical unit comprises a plurality of optical fibers, the high-modulus nonmetallic filling layer is arranged in gaps of the optical fibers, the positioning hanging hole is arranged on the high-strength flame-retardant sheath, the positioning hanging hole is axially penetrating arranged on the high-strength flame-retardant sheath, the section of the high-strength flame-retardant sheath is rectangular, and the high-strength flame-retardant sheath is made of high-temperature-resistant flame-retardant materials with high strength toughness; compared with the prior art, the invention not only solves the requirements of expansion and torsion of the working scene, but also has the characteristics of good memory performance, light weight and the like, and can meet the use requirement of equipment.
Description
Technical Field
The invention relates to the technical field of optical fiber cables, in particular to a telescopic torsion type multi-core spring optical cable.
Background
At present, with the development of technology and the progress of society, the applicable places of optical cables are more and more widespread, optical cables are not only used for signal transmission of long-distance optical communication, more optical cables are used for signal transmission in equipment, and the optical cables are high in performance, harsh in use scene conditions and different in size and shape.
However, the conventional optical cable structure and size do not fully satisfy the use of such a scenario, either the performance index is not satisfied or the size and shape are not satisfied, and when the performance index and the size and shape can meet the requirements, the use requirements of the working scenario cannot be met, so that the conventional multi-core optical cable structure cannot be fully moved into such a scenario for use.
Therefore, the private custom-made design and production of the optical cable manufacturer are required, the performance requirement and the size requirement of the optical cable are required to be met, the scene use requirement is required to be met, and meanwhile, the optical cable is simple in structure requirement, light in weight and good in softness and memory. This places higher design and production requirements on the cable plant.
Disclosure of Invention
The invention aims to solve the defects and provide the telescopic torsion type multi-core spring optical cable, which not only solves the requirements of expansion and torsion of a working scene, but also has the characteristics of good memory performance, light weight and the like, and can meet the use requirements of equipment.
The telescopic torsion type multi-core spring optical cable comprises an optical unit 1, a groined type metal reinforcing piece 2, a positioning hanging hole 3, a high-strength flame-retardant sheath 4, optical fibers 101 and a high-modulus nonmetal filling layer 102, wherein the high-strength flame-retardant sheath 4 is in a spiral spring shape, the optical unit 1 and the groined type metal reinforcing piece 2 are arranged in the high-strength flame-retardant sheath 4, the optical unit 1 and the groined type metal reinforcing piece 2 are spiral along with the high-strength flame-retardant sheath 4, the optical unit 1 comprises a plurality of optical fibers 101, the high-modulus nonmetal filling layer 102 is arranged in gaps of the optical fibers 101, and the positioning hanging hole 3 is arranged on the high-strength flame-retardant sheath 4.
Further, the positioning hanging hole 3 is arranged on the high-strength flame-retardant sheath 4 in an axial penetrating way.
Further, the section of the high-strength flame-retardant sheath 4 is rectangular, and the high-strength flame-retardant sheath 4 is made of high-strength, tough, high-temperature-resistant and high-flame-retardant material.
Further, the groined type metal reinforcement 2 is embedded in one side in the high-strength flame-retardant sheath 4 in a spiral spring shape, the light unit 1 is embedded in the other side in the high-strength flame-retardant sheath 4 in a spiral spring shape, and the positioning hanging holes 3, the groined type metal reinforcement 2 and the light unit 1 are arranged at two side positions of the groined type metal reinforcement 2 in a cross section mutually perpendicular mode.
Further, the cross section of the groined type metal reinforcement 2 is in a groined shape, and the groined type metal reinforcement 2 is made of high-strength ductile metallic material.
Further, the elongated portions of the four corners of the # -shaped metal stiffener 2 are embedded into a high strength flame retardant sheath 4 to form an in-line pattern.
Further, the hollow structure of the groined type metal reinforcement 2 may be provided with a cable in a penetrating manner, so that the telescopic torsion type multi-core spring optical cable forms a photoelectric composite structure with an optical unit at one side and an electric unit at the other side.
Further, the number of optical fibers 101 are bend loss insensitive optical fibers.
Further, the high modulus nonmetallic filler layer 102 is made of a flexible aramid copolymer fiber material with high modulus and high strength.
Further, the light unit 1 and the groined type metal reinforcement 2 are formed by one-step extrusion molding through a die.
Compared with the prior art, the invention has the following advantages:
(1) The high-strength flame-retardant sheath is in a spiral spring shape, and the spiral groined-shaped metal reinforcing piece is arranged in the sheath, so that the spring optical cable can be stretched or compressed like a spring when being stressed, and can be restored to the previous state when being stressed and can be twisted back and forth when being stressed;
(2) The high-strength flame-retardant sheath is made of high-strength, high-toughness and high-temperature-resistant flame-retardant material, so that the phenomenon of cracking and sheath breakage after the optical cable continuously and repeatedly moves is avoided, the optical cable can bear a high-temperature working environment, the inside of the equipment is in a high-temperature state for a long time due to long-term operation, and the optical cable has high flame-retardant performance;
(3) According to the invention, the cross section of the groined-shaped metal reinforcing member is a metal sheet similar to a groined shape, and the extension parts of the four corners of the groined-shaped metal reinforcing member are embedded into the high-strength flame-retardant sheath to form an embedded mode, so that the groined-shaped metal reinforcing member is more tightly adhered with the high-strength flame-retardant sheath, and the high-strength flame-retardant sheath can be well supported in the continuous movement of the spring optical cable without being separated from the sheath;
(4) The cross-shaped metal reinforcement is of a hollow structure, so that the overall weight of the metal reinforcement is effectively reduced, a reserved space is reserved for the cable when the cable is needed in the later period, the cable can penetrate into the hollow structure, and a photoelectric composite structure with one side being an optical unit and one side being an electric unit is formed;
(5) The optical unit in the optical cable comprises a plurality of optical fibers and a high-modulus nonmetallic filling layer, the optical fibers are of a loose fiber structure, when the optical cable is stretched, compressed or twisted, the internal optical fibers can freely move, the optical fibers are not broken or extruded due to sudden stress, the gaps of the optical fibers are filled with the high-modulus nonmetallic filling layer, the optical fibers are protected, and meanwhile, when the stretching and twisting degree of the optical cable reaches a certain time, the high-modulus nonmetallic filling layer is stressed to generate tensile performance at first, the optical fibers are protected from stress deformation, and the transmission stability of optical communication is improved;
(6) The overall outer diameter of the optical cable can be set to be 4 mm or 8mm, and the multi-core optical unit structure has great significance for realizing optical transmission of multiple signals;
In summary, the invention not only solves the requirements of expansion and torsion of the working scene, but also has the characteristics of good memory performance, light weight and the like, can meet the use requirement of equipment, and is worth popularizing and applying.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic side elevational view of the present invention;
In the figure: 1. the optical unit 2, the groined type metal reinforcement 3, the positioning hanging hole 4, the high-strength flame-retardant sheath 101, the optical fiber 102 and the high-modulus nonmetallic filling layer.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
As shown in the drawings, the invention provides a telescopic torsion type multi-core spring optical cable, which comprises an optical unit 1, a groined type metal reinforcing member 2, a positioning hanging hole 3, a high-strength flame-retardant sheath 4, optical fibers 101 and a high-modulus nonmetal filling layer 102, wherein the high-strength flame-retardant sheath 4 is in a spiral spring shape, the optical unit 1 and the groined type metal reinforcing member 2 are arranged in the high-strength flame-retardant sheath 4, the optical unit 1 and the groined type metal reinforcing member 2 are both in spiral shapes along with the high-strength flame-retardant sheath 4, the optical unit 1 comprises a plurality of optical fibers 101, the high-modulus nonmetal filling layer 102 is arranged in the gaps of the optical fibers 101, and the positioning hanging hole 3 is arranged on the high-strength flame-retardant sheath 4; the positioning hanging hole 3 is arranged on the high-strength flame-retardant sheath 4 in an axial penetrating mode, the section of the high-strength flame-retardant sheath 4 is rectangular, and the high-strength flame-retardant sheath 4 is made of high-strength, tough and high-temperature-resistant flame-retardant materials.
Wherein, the groined type metal reinforcement 2 is the coil spring form and inlays in the fire-retardant sheath of high strength 4 one side, and the light unit 1 is the coil spring form and inlays in the fire-retardant sheath of high strength 4 the opposite side, and location hanging hole 3 and groined type metal reinforcement 2, the setting of light unit 1 cross-section mutually perpendicular are in its both sides position. The cross section of the groined-shaped metal reinforcement 2 is in a groined shape, and the groined-shaped metal reinforcement 2 is made of high-strength and toughness metal materials; the elongated parts of the four corners of the # -shaped metal reinforcement 2 are embedded into the high strength flame retardant sheath 4 to form an embedded mode; the hollow structure of the groined type metal reinforcement 2 can be penetrated with a cable, so that the telescopic torsion type multi-core spring optical cable forms a photoelectric composite structure with one side being an optical unit and the other side being an electric unit. The optical fibers 101 are bending loss insensitive optical fibers, and the high-modulus nonmetallic filling layer 102 is made of a high-modulus high-strength flexible aramid copolymer fiber material. The light unit 1 and the metal reinforcing element 2 are both formed by one-step extrusion through a die.
In the invention, the high-strength flame-retardant sheath is in the shape of a spiral spring, and the spiral groined-shaped metal reinforcing piece is arranged in the sheath, so that the spring optical cable can be stretched or compressed like a spring when being stressed, and can be restored to the previous state when being stressed and released, and the reciprocating torsion of the optical cable can be realized; the high-strength flame-retardant sheath not only ensures that the phenomenon of cracking and sheath breakage can not occur after the optical cable continuously and repeatedly moves, so that the optical cable can bear a high-temperature working environment, the equipment is in a high-temperature state for a long time due to long-term operation, and meanwhile, the optical cable has higher flame-retardant property.
The cross section of the groined metal reinforcement is a metal sheet similar to a groined shape, and the extension parts of the four corners of the groined are embedded into the high-strength flame-retardant sheath to form an embedded mode, so that the groined metal reinforcement and the high-strength flame-retardant sheath are more tightly adhered, and the high-strength flame-retardant sheath can be well supported in the continuous movement of the spring optical cable without being separated from the sheath; the well-shaped metal reinforcing part is of a hollow structure, so that the overall weight of the metal reinforcing part is effectively reduced, and when a cable is needed to be used in the later period, a space is reserved for the cable, so that the cable can penetrate into the hollow structure through the hollow structure, and a photoelectric composite structure with an optical unit on one side and an electric unit on the other side is formed.
The optical unit in the optical cable comprises a plurality of optical fibers and a high-modulus nonmetallic filling layer, the optical fibers are of a fiber-dispersing structure, and when the optical cable stretches, compresses or twists, the internal optical fibers can freely move, and the optical fibers cannot be broken or extruded due to sudden stress; because the gaps of the optical fibers are filled with the high-modulus nonmetallic filling layers, the optical fibers are protected, and meanwhile, when the stretching and torsion degree of the optical cable reaches a certain degree, the high-modulus nonmetallic filling layers are stressed at first to generate tensile property, so that the stressed deformation of the optical fibers is protected, the transmission stability of optical communication is improved, the integral strength of the optical cable is ensured, and the integral weight of the optical cable is reduced. The overall outer diameter of the cable may be set to 4 x 8mm, while the multi-core optical unit portion is of great significance for achieving optical transmission of multiple signals.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the invention are intended to be equivalent substitutes and are included in the scope of the invention.
Claims (4)
1. A scalable torsion-type multi-core spring optical cable, characterized in that: the high-strength flame-retardant fiber reinforced plastic cable comprises a light unit (1), a groined-shaped metal reinforcing piece (2), a positioning hanging hole (3), a high-strength flame-retardant sheath (4), optical fibers (101) and a high-modulus nonmetal filling layer (102), wherein the high-strength flame-retardant sheath (4) is in a spiral spring shape, the light unit (1) and the groined-shaped metal reinforcing piece (2) are arranged in the high-strength flame-retardant sheath (4), the light unit (1) and the groined-shaped metal reinforcing piece (2) are all in spiral shapes along with the high-strength flame-retardant sheath (4), the light unit (1) comprises a plurality of optical fibers (101), the high-modulus nonmetal filling layer (102) is arranged in gaps of the optical fibers (101), and the positioning hanging hole (3) is arranged on the high-strength flame-retardant sheath (4); the positioning hanging hole (3), the cross section of the groined-shaped metal reinforcement (2) and the cross section of the light unit (1) are mutually perpendicular and are arranged at two sides of the groined-shaped metal reinforcement (2) and the light unit (1); the cross section of the groined-shaped metal reinforcement (2) is in a groined shape, and the groined-shaped metal reinforcement (2) is made of high-strength and toughness metal materials; the four corners of the cross-shaped metal reinforcement (2) are embedded into the high-strength flame-retardant sheath (4) to form an embedded mode; the hollow structure of the groined type metal reinforcement (2) is penetrated with a cable, and the telescopic torsion type multi-core spring optical cable forms a photoelectric composite structure with one side being an optical unit and the other side being an electric unit; the high-modulus nonmetallic filling layer (102) adopts a high-modulus high-strength flexible aromatic amide copolymer fiber material.
2. The retractable torsion-type multi-core spring optical cable according to claim 1, wherein: the section of the high-strength flame-retardant sheath (4) is rectangular, and the high-strength flame-retardant sheath (4) is made of high-strength, tough and high-temperature-resistant flame-retardant material.
3. A retractable torsion-type multi-core spring optical cable according to claim 1 or 2, wherein: the plurality of optical fibers (101) are bend loss insensitive optical fibers.
4. A retractable torsion-type multi-core spring optical cable according to claim 1 or 2, wherein: the light unit (1) and the groined-shaped metal reinforcing member (2) are formed by one-step extrusion molding through a die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111517449.1A CN114167562B (en) | 2021-12-13 | 2021-12-13 | Telescopic torsion-type multi-core spring optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111517449.1A CN114167562B (en) | 2021-12-13 | 2021-12-13 | Telescopic torsion-type multi-core spring optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114167562A CN114167562A (en) | 2022-03-11 |
| CN114167562B true CN114167562B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111517449.1A Active CN114167562B (en) | 2021-12-13 | 2021-12-13 | Telescopic torsion-type multi-core spring optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114167562B (en) |
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| CN102254610A (en) * | 2011-04-19 | 2011-11-23 | 中国电力科学研究院 | Insulated composite cable |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN114167562A (en) | 2022-03-11 |
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