CN111142205A - Special-shaped structure optical cable and special-shaped structure cable - Google Patents
Special-shaped structure optical cable and special-shaped structure cable Download PDFInfo
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- CN111142205A CN111142205A CN202010083844.2A CN202010083844A CN111142205A CN 111142205 A CN111142205 A CN 111142205A CN 202010083844 A CN202010083844 A CN 202010083844A CN 111142205 A CN111142205 A CN 111142205A
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- 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
- G02B6/4415—Cables for special applications
- G02B6/4416—Heterogeneous cables
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
The invention belongs to the technical field of electric power, and particularly relates to a special-shaped structure optical cable which comprises a central reinforcement, a first protective layer, a second protective layer, a special-shaped protective layer and an outer sheath, wherein optical fibers are arranged in the special-shaped protective layer; the protective layer structure is characterized in that the first protective layer and the second protective layer are both semicircular ring cylinder structures, the first protective layer and the second protective layer are spliced into a complete cylinder ring, the special-shaped protective layer structure is special-shaped, the special-shaped protective layers are arranged in the same direction, the outer edges of all the special-shaped protective layers are spliced into a cylinder structure, and the inner edge of each special-shaped protective layer is tightly attached to the outer wall of the first protective layer or the outer wall of the second protective layer; the upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-shaped protective layer, and an inclined groove is formed between the adjacent special-shaped protective layers. The invention has the following beneficial effects: the special-shaped protective layer is more reliable in fixation, simpler in structure, easier to manufacture, better in mechanical and temperature performances, better in heat dissipation effect, lighter in product and lower in cost.
Description
Technical Field
The invention belongs to the technical field of electric power, and particularly relates to a special-shaped structure optical cable and a special-shaped structure cable.
Background
In the prior art, the optical cable is provided with a central beam tube type, a framework type and a layer stranded type, in the layer stranded optical cable, a plurality of loose tubes are stranded around a reinforcing piece SZ, and in order to ensure the structure stability, polyester binding yarns are usually bound outside the loose tubes, so the stability of the structure is greatly improved, however, the loose tubes can be loosened only by stripping the polyester binding yarns and withdrawing the strands, so great troubles are brought to test and construction, serious deformation is generated due to the stranding of the loose tubes, the product performance is deteriorated, and the loose tubes are usually bound by the polyester binding yarns due to the inconsistency of shrinkage performance when the temperature changes greatly, optical fibers are bound and broken when the temperature changes greatly, so the communication is interrupted; although the framework type optical cable in the prior art avoids the defect of being damaged by pricking, the equipment is expensive, and corresponding equipment is rarely purchased. On the other hand, the twisted loose tubes or the loose tubes arranged in parallel are often pressed against each other to deteriorate the performance in the case of twisting, repeated bending, or the like at the time of construction and production, and also pressed against the adjacent loose tubes to deteriorate the performance in the case of high temperature due to a difference in expansion coefficient.
Disclosure of Invention
In order to solve the above problems, the present invention discloses a profile cable and a profile cable, which are implemented by the following technical solutions.
A special-shaped structure optical cable comprises a central reinforcing part, a first protective layer and a second protective layer which are positioned outside the central reinforcing part, a plurality of special-shaped protective layers which are positioned outside the first protective layer and the second protective layer, and an outer sheath which is positioned outside the special-shaped protective layers, wherein each special-shaped protective layer is of a sealed structure, a hollow fiber cavity is formed in each special-shaped protective layer, and a plurality of optical fibers are arranged in each hollow fiber cavity; the protective layer is characterized in that the first protective layer is of a semicircular cylinder structure, a first convex strip which protrudes upwards is arranged on the surface of one end of the first protective layer, a second concave groove which is concave downwards is arranged on the surface of the other end of the first protective layer, the second protective layer is of a semicircular cylinder structure, a first concave groove which is concave downwards is arranged on the surface of one end of the second protective layer, a second convex strip which protrudes upwards is arranged on the surface of one end of the second protective layer, the first convex strip is embedded in the first concave groove, the second convex strip is embedded in the second concave groove, the first protective layer and the second protective layer are spliced into a complete cylinder ring, the inner diameter of the first protective layer is equal to the inner diameter of the second protective layer, the outer diameter of the first protective layer is equal to the outer diameter of the second protective layer, the inner edge of the special-shaped protective layer is an arc cylindrical surface, the outer edge of the special-shaped, the arc column shaft of the inner edge of the special-shaped protective layer is superposed with the arc column shaft of the outer edge of the special-shaped protective layer, the curvature of the inner edge of the special-shaped protective layer is equal to that of the special-shaped protective layer, the bending direction of the inner edge of the special-shaped protective layer is consistent, the central angle corresponding to the inner edge of the special-shaped protective layer is smaller than that of the outer edge of the special-shaped protective layer, the left edge of the special-shaped protective layer is not parallel to the right edge of the special-shaped protective layer, the plane where the left edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the plane where the right edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the lower edge straight line of the left edge of the The upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-shaped protective layer, and an inclined groove is arranged between the adjacent special-shaped protective layers.
The optical cable with the special-shaped structure is characterized in that the material of the central reinforcing member is steel, iron or aluminum tape glass fiber reinforced plastic or other plastics.
The optical cable with the special-shaped structure is characterized in that the special-shaped protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The optical cable with the special-shaped structure is characterized in that the outer sheath is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate.
The optical cable with the special-shaped structure is characterized in that the first protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The optical cable with the special-shaped structure is characterized in that the second protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The optical cable with the special-shaped structure is characterized in that the special-shaped protective layer is filled with water-blocking substances, such as water-blocking ointment, water-blocking powder or water-blocking yarn.
A cable with a special-shaped structure comprises a central reinforcing part, a first protective layer and a second protective layer which are positioned outside the central reinforcing part, a plurality of special-shaped protective layers which are positioned outside the first protective layer and the second protective layer, and an outer sheath which is positioned outside the special-shaped protective layers, wherein each special-shaped protective layer is of a sealed structure, a hollow fiber cavity is formed in each special-shaped protective layer, and a conductor is arranged in each hollow fiber cavity; the protective layer is characterized in that the first protective layer is of a semicircular cylinder structure, a first convex strip which protrudes upwards is arranged on the surface of one end of the first protective layer, a second concave groove which is concave downwards is arranged on the surface of the other end of the first protective layer, the second protective layer is of a semicircular cylinder structure, a first concave groove which is concave downwards is arranged on the surface of one end of the second protective layer, a second convex strip which protrudes upwards is arranged on the surface of one end of the second protective layer, the first convex strip is embedded in the first concave groove, the second convex strip is embedded in the second concave groove, the first protective layer and the second protective layer are spliced into a complete cylinder ring, the inner diameter of the first protective layer is equal to the inner diameter of the second protective layer, the outer diameter of the first protective layer is equal to the outer diameter of the second protective layer, the inner edge of the special-shaped protective layer is an arc cylindrical surface, the outer edge of the special-shaped, the arc column shaft of the inner edge of the special-shaped protective layer is superposed with the arc column shaft of the outer edge of the special-shaped protective layer, the curvature of the inner edge of the special-shaped protective layer is equal to that of the special-shaped protective layer, the bending direction of the inner edge of the special-shaped protective layer is consistent, the central angle corresponding to the inner edge of the special-shaped protective layer is smaller than that of the outer edge of the special-shaped protective layer, the left edge of the special-shaped protective layer is not parallel to the right edge of the special-shaped protective layer, the plane where the left edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the plane where the right edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the lower edge straight line of the left edge of the The upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-shaped protective layer, and an inclined groove is arranged between the adjacent special-shaped protective layers.
The special-shaped structure cable is characterized in that the material of the central reinforcing member is steel or iron or aluminum tape glass fiber reinforced plastic or other plastics.
The special-shaped structure cable is characterized in that the special-shaped protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The special-shaped structure cable is characterized in that the conductor is made of copper or aluminum or an alloy.
The special-shaped structure cable is characterized in that the outer sheath is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate.
The special-shaped structure cable is characterized in that the first protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The special-shaped structure cable is characterized in that the second protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The invention has the following main beneficial effects: the special-shaped protective layer is more reliable in fixation, simpler in structure, easier to manufacture, better in mechanical and temperature performances, better in heat dissipation effect, lighter in product and lower in cost.
Drawings
Fig. 1 is a schematic perspective view of a dissected portion of an embodiment 1 of the present invention.
Fig. 2 is an enlarged cross-sectional structure diagram of fig. 1.
Fig. 3 is a schematic perspective view of a dissected portion of the present invention according to example 2.
Fig. 4 is an enlarged cross-sectional view of fig. 3.
In order that those skilled in the art will more accurately and clearly understand and practice the present application, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which: 1-central reinforcement, 3-special-shaped protective layer, 4-optical fiber, 5-outer sheath, 6-conductor, 7-chute, 21-first protective layer, 22-second protective layer, 31-hollow fiber cavity, 211-first raised line, 221-first groove, 222-second raised line and 212-second groove.
Detailed Description
Examples 1
Referring to fig. 1 and 2, an optical cable with a special-shaped structure comprises a central reinforcement 1, a first protective layer 21 and a second protective layer 22 which are positioned outside the central reinforcement, a plurality of special-shaped protective layers 3 which are positioned outside the first protective layer and the second protective layer, and an outer sheath 5 which is positioned outside the special-shaped protective layers, wherein each special-shaped protective layer is of a sealed structure, each special-shaped protective layer is internally provided with a hollow fiber cavity 31, and a plurality of optical fibers 4 are arranged in the hollow fiber cavity; it is characterized in that the first protective layer 21 is a semicircular cylinder structure, one end surface of the first protective layer is provided with a first convex strip 211 which protrudes upwards, the other end surface of the first protective layer is provided with a second concave groove 212 which is recessed downwards, the second protective layer 22 is a semicircular cylinder structure, one end surface of the second protective layer is provided with a first concave groove 221 which is recessed downwards, one end surface of the second protective layer is provided with a second convex strip 222 which protrudes upwards, the first convex strip 211 is embedded in the first concave groove 221, the second convex strip 222 is embedded in the second concave groove 212, the first protective layer and the second protective layer are spliced into a complete cylinder ring, the inner diameter of the first protective layer is equal to the inner diameter of the second protective layer, the outer diameter of the first protective layer is equal to the outer diameter of the second protective layer, the inner edge of the special-shaped protective layer is a circular arc cylinder, the outer edge of the special-shaped protective layer is a circular arc cylinder, and the left edge, the arc column shaft of the inner edge of the special-shaped protective layer is superposed with the arc column shaft of the outer edge of the special-shaped protective layer, the curvature of the inner edge of the special-shaped protective layer is equal to that of the special-shaped protective layer, the bending direction of the inner edge of the special-shaped protective layer is consistent, the central angle corresponding to the inner edge of the special-shaped protective layer is smaller than that of the outer edge of the special-shaped protective layer, the left edge of the special-shaped protective layer is not parallel to the right edge of the special-shaped protective layer, the plane where the left edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the plane where the right edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the lower edge straight line of the left edge of the The upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-shaped protective layer, and an inclined groove 7 is arranged between the adjacent special-shaped protective layers.
The optical cable with the special-shaped structure is characterized in that the material of the central reinforcing member is steel, iron or aluminum tape glass fiber reinforced plastic or other plastics.
The optical cable with the special-shaped structure is characterized in that the special-shaped protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The optical cable with the special-shaped structure is characterized in that the type of the optical fiber is G.652, G.653, G.654, G.655, G.656, G.657, A1a, A1b or A1 c.
The optical cable with the special-shaped structure is characterized in that the outer sheath is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate.
The optical cable with the special-shaped structure is characterized in that the first protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The optical cable with the special-shaped structure is characterized in that the second protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The special-shaped structure optical cable is characterized in that the special-shaped protective layer has mutually distinguishable colors.
Further, some may have the same color, as long as discrimination is achieved, such as one red, one green, and the other white, so that discrimination is possible according to arrangement, and so on.
EXAMPLES example 2
Referring to fig. 3 and 4, a cable with a special-shaped structure comprises a central reinforcement 1, a first protective layer 21 and a second protective layer 22 which are positioned outside the central reinforcement, a plurality of special-shaped protective layers 3 which are positioned outside the first protective layer and the second protective layer, and an outer sheath 5 which is positioned outside the special-shaped protective layers, wherein each special-shaped protective layer is of a sealed structure, each special-shaped protective layer is internally provided with a hollow fiber cavity 31, and a conductor 6 is arranged in each hollow fiber cavity; it is characterized in that the first protective layer 21 is a semicircular cylinder structure, one end surface of the first protective layer is provided with a first convex strip 211 which protrudes upwards, the other end surface of the first protective layer is provided with a second concave groove 212 which is recessed downwards, the second protective layer 22 is a semicircular cylinder structure, one end surface of the second protective layer is provided with a first concave groove 221 which is recessed downwards, one end surface of the second protective layer is provided with a second convex strip 222 which protrudes upwards, the first convex strip 211 is embedded in the first concave groove 221, the second convex strip 222 is embedded in the second concave groove 212, the first protective layer and the second protective layer are spliced into a complete cylinder ring, the inner diameter of the first protective layer is equal to the inner diameter of the second protective layer, the outer diameter of the first protective layer is equal to the outer diameter of the second protective layer, the inner edge of the special-shaped protective layer is a circular arc cylinder, the outer edge of the special-shaped protective layer is a circular arc cylinder, and the left edge, the arc column shaft of the inner edge of the special-shaped protective layer is superposed with the arc column shaft of the outer edge of the special-shaped protective layer, the curvature of the inner edge of the special-shaped protective layer is equal to that of the special-shaped protective layer, the bending direction of the inner edge of the special-shaped protective layer is consistent, the central angle corresponding to the inner edge of the special-shaped protective layer is smaller than that of the outer edge of the special-shaped protective layer, the left edge of the special-shaped protective layer is not parallel to the right edge of the special-shaped protective layer, the plane where the left edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the plane where the right edge of the special-shaped protective layer is located deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the lower edge straight line of the left edge of the The upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-shaped protective layer, and an inclined groove 7 is arranged between the adjacent special-shaped protective layers.
The special-shaped structure cable is characterized in that the material of the central reinforcing member is steel or iron or aluminum tape glass fiber reinforced plastic or other plastics.
The special-shaped structure cable is characterized in that the special-shaped protective layers have mutually distinguishable colors.
The special-shaped structure cable is characterized in that the special-shaped protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The special-shaped structure cable is characterized in that the conductor is made of copper or aluminum or an alloy.
The special-shaped structure cable is characterized in that the outer sheath is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate.
The special-shaped structure cable is characterized in that the first protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
The special-shaped structure cable is characterized in that the second protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon or polyvinyl chloride or TPE (thermoplastic elastomer) or TPU (thermoplastic polyurethane) elastomer or polypropylene or polybutylene terephthalate or nylon.
In the invention, the existence of the first protective layer and the second protective layer can effectively separate the special-shaped protective layer from the reinforcing piece, the smooth surfaces of the first protective layer and the second protective layer can ensure that the special-shaped protective layer is convenient to attach and has smaller friction force, the first protective layer and the second protective layer can be of the same structure, so the manufacture and the storage are more convenient, the existence of the protective layer can simultaneously protect the reinforcing piece, oil substances are sprayed into a gap to block water, the outer edge of the special-shaped protective layer is tightly attached to the inner edge of the outer sheath, the inner edge of the special-shaped protective layer is tightly attached to the outer edge of the protective layer, the upper edge of the left edge of the special-shaped protective layer is attached to the upper edge of the right edge of the adjacent special-shaped protective layer, the stability of the structure of each special-shaped protective layer is ensured, only linear extrusion is realized when the protective layer, on the other hand, the inclined grooves arranged between the adjacent special-shaped protective layers ensure that the performances are stable when the machinery, the temperature and the like change, so that the special-shaped protective layers have enough expansion space, and the expansion space also increases the heat dissipation performance for the cable, so that the heat dissipation performance is better; the technical problem that the loose sleeve is easily pricked by polyester binding yarns is solved, and the product is lighter and lower in cost.
The invention has the following main beneficial effects: the special-shaped protective layer is more reliable in fixation, simpler in structure, easier to manufacture, better in mechanical and temperature performances, better in heat dissipation effect, lighter in product and lower in cost.
The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. A special-shaped structure optical cable comprises a central reinforcement (1), a first protective layer (21) and a second protective layer (22) which are positioned outside the central reinforcement, a plurality of special-shaped protective layers (3) which are positioned outside the first protective layer and the second protective layer, and an outer sheath (5) which is positioned outside the special-shaped protective layers, wherein each special-shaped protective layer is of a sealed structure, an optical fiber cavity (31) is formed in each special-shaped protective layer, and a plurality of optical fibers (4) are arranged in each optical fiber cavity; the protective layer is characterized in that the first protective layer (21) is of a semicircular cylinder structure, one end surface of the first protective layer is provided with a first convex strip (211) which protrudes upwards, the other end surface of the first protective layer is provided with a second concave groove (212) which is recessed downwards, the second protective layer (22) is of a semicircular cylinder structure, one end surface of the second protective layer is provided with a first concave groove (221) which is recessed downwards, one end surface of the second protective layer is provided with a second convex strip (222) which protrudes upwards, the first convex strip (211) is embedded into the first concave groove (221), the second convex strip (222) is embedded into the second concave groove (212), the first protective layer and the second protective layer are spliced to form a complete cylindrical ring, the inner diameter of the first protective layer is equal to the inner diameter of the second protective layer, the outer diameter of the first protective layer is equal to the outer diameter of the second protective layer, and the inner edge of the special-, the outer edge of the special-shaped protective layer is an arc cylindrical surface, the left edge and the right edge of the special-shaped protective layer are both planes, an arc column shaft of the inner edge of the special-shaped protective layer is superposed with an arc column shaft of the outer edge of the special-shaped protective layer, the curvature of the inner edge of the special-shaped protective layer is equal to that of the special-shaped protective layer, the bending direction of the inner edge of the special-shaped protective layer is consistent with that of the outer edge of the special-shaped protective layer, the central angle corresponding to the inner edge of the special-shaped protective layer is smaller than that of the outer edge of the special-shaped protective layer, the left edge of the special-shaped protective layer is not parallel to the right edge of the special-shaped protective layer, the plane of the left edge of the special-shaped protective layer deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the plane, the lower edge straight line of the right edge of each special-shaped protective layer is positioned above a plane formed by the upper edge straight line of the right edge of each special-shaped protective layer and the central axis of a cylinder where the outer edge of each special-shaped protective layer is positioned, the special-shaped protective layers are arranged in the same direction, the outer edges of all the special-shaped protective layers are spliced into a cylindrical structure, the inner edge of each special-shaped protective layer is tightly attached to the outer wall of the first protective layer or the outer wall of the second protective layer, the upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-; and water-blocking ointment, water-blocking powder or water-blocking yarn is filled in the special-shaped protective layer.
2. A profile structured optical cable according to claim 1, wherein the material of the central strength member is steel or iron or aluminium tape glass fibre reinforced plastic or other plastics.
3. A profile structured optical cable according to claim 1 or claim 2, wherein the material of the profile protective layer is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate or nylon.
4. A profile structured optical cable according to claim 3, wherein the material of said outer sheath is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate.
5. A profile structure optical cable according to claim 4, wherein the material of the first protective layer is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate or nylon.
6. A profile structure optical cable according to claim 5, wherein the material of the second protective layer is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate or nylon.
7. A special-shaped structure cable is provided with a central reinforcement (1), a first protective layer (21) and a second protective layer (22) which are positioned outside the central reinforcement, a plurality of special-shaped protective layers (3) which are positioned outside the first protective layer and the second protective layer, and an outer sheath (5) which is positioned outside the special-shaped protective layers, wherein each special-shaped protective layer is of a sealed structure, each special-shaped protective layer is internally provided with a fiber cavity (31), and a conductor (6) is arranged in each fiber cavity; the protective layer is characterized in that the first protective layer (21) is of a semicircular cylinder structure, one end surface of the first protective layer is provided with a first convex strip (211) which protrudes upwards, the other end surface of the first protective layer is provided with a second concave groove (212) which is recessed downwards, the second protective layer (22) is of a semicircular cylinder structure, one end surface of the second protective layer is provided with a first concave groove (221) which is recessed downwards, one end surface of the second protective layer is provided with a second convex strip (222) which protrudes upwards, the first convex strip (211) is embedded into the first concave groove (221), the second convex strip (222) is embedded into the second concave groove (212), the first protective layer and the second protective layer are spliced to form a complete cylindrical ring, the inner diameter of the first protective layer is equal to the inner diameter of the second protective layer, the outer diameter of the first protective layer is equal to the outer diameter of the second protective layer, and the inner edge of the special-, the outer edge of the special-shaped protective layer is an arc cylindrical surface, the left edge and the right edge of the special-shaped protective layer are both planes, an arc column shaft of the inner edge of the special-shaped protective layer is superposed with an arc column shaft of the outer edge of the special-shaped protective layer, the curvature of the inner edge of the special-shaped protective layer is equal to that of the special-shaped protective layer, the bending direction of the inner edge of the special-shaped protective layer is consistent with that of the outer edge of the special-shaped protective layer, the central angle corresponding to the inner edge of the special-shaped protective layer is smaller than that of the outer edge of the special-shaped protective layer, the left edge of the special-shaped protective layer is not parallel to the right edge of the special-shaped protective layer, the plane of the left edge of the special-shaped protective layer deviates from the central axis of the column body where the inner edge of the special-shaped protective layer is located, the plane, the lower edge straight line of the right edge of each special-shaped protective layer is positioned above a plane formed by the upper edge straight line of the right edge of each special-shaped protective layer and the central axis of a cylinder where the outer edge of each special-shaped protective layer is positioned, the special-shaped protective layers are arranged in the same direction, the outer edges of all the special-shaped protective layers are spliced into a cylindrical structure, the inner edge of each special-shaped protective layer is tightly attached to the outer wall of the first protective layer or the outer wall of the second protective layer, the upper edge of the left edge of each special-shaped protective layer is tightly attached to the upper edge of the right edge of the adjacent special-; the special-shaped protective layers have mutually distinguishable colors.
8. A profile cable according to claim 7, wherein the material of the central strength member is steel or iron or aluminium tape glass fibre reinforced plastics or other plastics.
9. A profile structured cable according to claim 7 or claim 8, wherein the material of the conductor is copper or aluminium or an alloy.
10. A profile structure cable according to claim 9, wherein the material of said outer sheath is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon or polyvinyl chloride or TPE elastomer or TPU elastomer or polypropylene or polybutylene terephthalate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010083844.2A CN111142205A (en) | 2020-02-10 | 2020-02-10 | Special-shaped structure optical cable and special-shaped structure cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010083844.2A CN111142205A (en) | 2020-02-10 | 2020-02-10 | Special-shaped structure optical cable and special-shaped structure cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111142205A true CN111142205A (en) | 2020-05-12 |
Family
ID=70527267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010083844.2A Withdrawn CN111142205A (en) | 2020-02-10 | 2020-02-10 | Special-shaped structure optical cable and special-shaped structure cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111142205A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057102A1 (en) * | 2020-09-17 | 2022-03-24 | 苏州专创光电科技有限公司 | Cable for data center access, and optical cable and photoelectric composite cable |
| CN117790059A (en) * | 2023-12-28 | 2024-03-29 | 扬州市中能电缆有限公司 | High-safety multi-cable-core control cable |
-
2020
- 2020-02-10 CN CN202010083844.2A patent/CN111142205A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022057102A1 (en) * | 2020-09-17 | 2022-03-24 | 苏州专创光电科技有限公司 | Cable for data center access, and optical cable and photoelectric composite cable |
| CN117790059A (en) * | 2023-12-28 | 2024-03-29 | 扬州市中能电缆有限公司 | High-safety multi-cable-core control cable |
| CN117790059B (en) * | 2023-12-28 | 2024-09-10 | 扬州市中能电缆有限公司 | High-safety multi-cable-core control cable |
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Application publication date: 20200512 |
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