CN210805336U - Photoelectric composite cable - Google Patents

Abstract

The utility model provides a photoelectric composite cable is by inboard to the outside in proper order including transposition cable core, first mica tape, inner sheath, water-blocking tape, non-metallic armor, second mica tape, oversheath. The outer sheath is made of polyvinyl fluoride, the stranded cable core comprises a central reinforcing piece, a plurality of optical fiber units and a plurality of electric wire units, the central reinforcing piece is located in the center of the stranded cable core, the optical fiber units and the electric wire units are arranged on the periphery of the central reinforcing piece, the electric wire units are composed of electric conductors and insulating layers, and the electric conductors are located in the insulating layers. Through the communication of optical fiber unit and the power supply of electric wire unit, can solve current cableway optical cable and cable from this and lay the problem that increases construction and operation cost respectively, prevent that the too much safety that influences cableway cable car of cable, economy, practical function are good, and this oversheath can make this photoelectric composite cable can use under adverse circumstances for a long time, increase life.

Description

Photoelectric composite cable

Technical Field

The utility model belongs to the technical field of the communication and specifically relates to a photoelectric composite cable is related to.

Background

With the development of society, the living needs of modern human beings increasingly depend on automation, intellectualization and informatization, but the application results of the society cannot be separated from the hardware erection of a modern information network, and the hardware erection of the information network cannot be separated from the erection and use of communication optical cables and electric cables.

At present, the development heat of the tourism industry is high, and especially people go to landscape natural scenic spots, the demand of cableway sightseeing cable cars is greatly stimulated, and meanwhile, the demand of optical cables and electric cables is rapidly expanded. However, the optical cables and the electric cables of the traditional cableway cable are laid respectively, so that the construction and operation cost is increased, and the safety, economy and practical effects of the cableway cable car are seriously influenced. Moreover, because the construction and use environment of the traditional cableway cable is severe, the traditional cableway cable is very easy to have the environmental influences of moisture, metal piece corrosion, ultraviolet aging, poor flame-retardant and fireproof effects and the like, and the physical damages of mouse bite, monkey bite, bird peck and the like, thereby affecting the service life.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects and deficiencies of the prior art, the utility model provides a photoelectric composite cable.

The utility model adopts the technical proposal that: a photoelectric composite cable from inside to outside

The side sequentially comprises a stranded cable core, a first mica tape, an inner sheath, a water blocking tape, a non-metal armor layer, a second mica tape and an outer sheath, the outer sheath is made of polyvinyl fluoride, the stranded cable core comprises a central reinforcing part, a plurality of optical fiber units and a plurality of wire units, the central reinforcing part is positioned in the center of the stranded cable core, the plurality of optical fiber units and the plurality of wire units are arranged on the periphery of the central reinforcing part, each wire unit is composed of a conductive body and an insulating layer, and the conductive body is positioned in the insulating layer.

Further, the optical fiber unit comprises a loose tube and a colored optical fiber, the colored optical fiber is arranged in the loose tube, and a fiber paste is filled between the loose tube and the colored optical fiber.

Further, the electric conductor is a copper wire.

Furthermore, the number of the electric wire units is 3, the number of the optical fiber units is 2, and water blocking yarns are filled between every two electric wire units or every two optical fiber units or between the optical fiber units and the electric wire units.

Further, the outer diameter of the loose tube is 2.0-3.5mm, and the number of the colored optical fibers is 1-24.

Further, the insulating layer is made of ethylene-tetrafluoroethylene copolymer and has a thickness of 0.3-0.4 mm.

Furthermore, the non-metal armor layer is composed of a plurality of non-metal reinforcing parts, and the non-metal reinforcing parts are made of fiber reinforced composite materials.

Further, the material of the central reinforcing member is a fiber reinforced composite material.

Further, the thickness of the water-blocking tape is 0.1-0.3 mm.

Further, the inner sheath is made of flame-retardant polyethylene, and the thickness of the inner sheath is 0.8-1.0 mm.

The utility model has the advantages that: compared with the prior art, the utility model discloses an optical fiber unit carries out the equipment communication, supplies power through the electric wire unit, and the optical cable and the cable that can solve current traditional cableway lay the problem that increases construction and operation cost respectively from this, and reducible cable prevents that the cable from too much influencing the safety of cableway cable car, and economy, practical function are good. In addition, the outer sheath made of the polyvinyl fluoride material can effectively reduce physical damages such as mouse bite, monkey bite, bird pecking and the like, can effectively protect the internal structure and reduce the high-altitude construction paying-off tension. In addition, this material oversheath can make the utility model discloses photoelectric composite cable can use under adverse circumstances for a long time, increases life.

Drawings

Fig. 1 is a cross-sectional view of an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention. Based on the embodiments in the present invention, other embodiments obtained by the skilled in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1, in the embodiment of the present invention, a photoelectric composite cable includes a twisted cable core 1, a first mica tape 2, an inner sheath 3, a water blocking tape 4, a non-metallic armor layer 5, a second mica tape 6, and an outer sheath 7 from the inside to the outside in sequence, the material of the outer sheath 7 is polyvinyl fluoride, the twisted cable core 1 includes a central reinforcement 11, a plurality of optical fiber units 12, and a plurality of wire units 13, the central reinforcement 11 is located at the center of the twisted cable core 1, and is a plurality of the optical fiber units 12 and a plurality of the wire units 13 are located at the periphery of the central reinforcement 1, the wire units 13 are composed of an electric conductor 132 and an insulating layer 131, the electric conductor 132 is located in the insulating layer 131.

The utility model discloses a transposition cable core 1 includes optical fiber unit 12 and electric wire unit 13, carries out the equipment communication through optical fiber unit 12, through electric wire unit 13 power supplies, can solve the optical cable and the cable of current traditional cableway and lay the problem that increases construction and operation cost respectively from this, and reducible cable, prevents that the cable from influencing the safety of cableway cable car too much, and economy, practical function are good. The outer sheath 7 of the polyvinyl fluoride material has extremely low permeability, does not absorb moisture, can effectively protect the internal structure, has high lubricating performance, belongs to a solid material with the lowest friction coefficient which is only 0.04, further prevents animals (such as birds, rats and the like) from staying on the photoelectric composite cable, can effectively reduce physical damages such as rat bite, monkey bite, bird pecking and the like, and can greatly reduce the pay-off tension of high-altitude construction; in addition, this material oversheath has high wear resistance and ultraviolet resistance ability, makes the utility model discloses the photoelectric composite cable can be used for a long time under adverse circumstances, increases life.

Wherein, concrete, an embodiment, optical fiber unit 12 and electric wire unit 13 mix and strand around central reinforcement 11, make the utility model discloses the structure of photoelectric composite cable is compacter.

In one embodiment, the first mica tape 2 and the second mica tape 4 are both made by using mica paper made of synthetic mica as a main material and then adhering glass cloth to both surfaces with an adhesive. The first mica tape 2 and the second mica tape 4 prepared by the method do not contain crystal water, the melting point is as high as 1375 ℃, the safety margin is large, the high temperature resistance is excellent, the heat insulation effect is very excellent, heat can be effectively prevented from diffusing to the inside, the thermal decomposition of internal materials is delayed, the combustion-supporting effect is not available, and the internal structure can be round and compact.

In an embodiment, in order to further make the utility model discloses the structure of optical cable is compacter and the effect that blocks water is better, the quantity of electric wire unit 13 is 3, the quantity of optical fiber unit 12 is 2, and per two electric wire unit 13 or per two optical fiber unit 12 or optical fiber unit 12 with it has the yarn that blocks water to fill between electric wire unit 13, and the yarn that blocks water plays the effect that blocks water.

In one embodiment, the optical fiber unit 12 includes a loose tube 121 and a colored optical fiber 122, the colored optical fiber 122 is disposed in the loose tube 121, and a fiber paste 123 is filled between the loose tube 121 and the colored optical fiber 122. The colored optical fiber 122 may be of a type of G652D, G657a1, G657a2, G657B3, G654E, etc., and the color thereof may be blue, orange, green, brown, gray, white, red, black, yellow, violet, pink, turquoise, blue, orange, green, brown, gray, white, red, yellow, purple, pink, green, etc., and the difference in color may serve to distinguish the optical fibers. The fiber paste 122 is a high thixotropy fiber paste, which can effectively absorb water vapor and prevent the hydrogen loss phenomenon of the internal colored optical fiber 122.

In one embodiment, in order to prevent the outer diameter of the optical/electrical composite cable of the present invention from becoming too large, the outer diameter of the loose tube 121 is 2.0 to 3.5mm, and the number of the colored optical fibers 122 is preferably 1 to 24.

In one embodiment, the conductive elements 132 are copper wires, wherein the copper wires 132 are stranded into strands through a bundling process, the strand cross-sectional area is preferably 1.5 to 6 square millimeters, and the maximum diameter of each copper wire 132 is 0.25 mm.

In one embodiment, the insulating layer 131 is made of ethylene-tetrafluoroethylene copolymer, the thickness of the insulating layer is 0.3-0.4mm, the insulating layer 131 made of the material has good electrical insulating performance, the insulating layer 131 with the thickness of only 0.23mm can meet the voltage requirement of 600V, and the outer diameter of the wire unit 13 can be greatly reduced; moreover, the insulating layer 131 of the material has good high and low temperature resistance, can normally work at the temperature of-65 ℃ to +150 ℃, further, even if the inner conductor (copper wire 132) generates heat due to self resistance, the insulating layer 131 cannot be thermally damaged, the adaptive temperature is wide, and the material can be used for high-altitude cable cars in various countries in the world; in addition, the insulating layer 131 of the material also has good high flame retardant property, and can effectively play a role in flame retardance and fire prevention.

In one embodiment, the non-metal armor layer 5 comprises a plurality of non-metal reinforcement 51, non-metal reinforcement 51 is the platykurtic, and thickness is 0.5-1.0mm, and the width is 2.0-4.0mm, and each non-metal reinforcement 51's material is fiber reinforcement combined material, and the non-metal reinforcement 51 of this material has advantages such as light in weight, high tensile, high resistance to compression, protection against rodents stings, prevent that monkey stings, prevent bird pecking, lightning protection and corrosion, can effectively reduce the utility model discloses photoelectric composite cable external diameter and bending radius increase the utility model discloses photoelectric composite cable pliability is convenient for lay of whole photoelectric composite cable.

In one embodiment, the material of center reinforcement 11 is fiber reinforced composite, and the center reinforcement 11 that this material was made has characteristics such as the quality is light, corrosion free, and can play the effect of tensile and stable transposition structure, can increase the utility model discloses photoelectric composite cable's tensile property.

In one embodiment, in order to effectively ensure the water blocking effect of the photoelectric composite cable and prevent the outer diameter of the photoelectric composite cable from being too large, the thickness of the water blocking tape 4 is preferably 0.1-0.3 mm.

In one embodiment, in order to delay the damage time of the fire to the internal structure, the material of the inner sheath 3 is flame retardant polyethylene, the inner sheath 3 made of the material can effectively play a role of flame retardant and fire prevention, and preferably, the thickness of the inner sheath 3 is preferably 0.8-1.0 mm.

The above embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. But rather, obvious variations and modifications may be made without departing from the spirit of the invention.

Claims (10)

1. An optical-electrical composite cable, characterized in that: the stranded cable comprises a stranded cable core, a first mica tape, an inner sheath, a water blocking tape, a non-metal armor layer, a second mica tape and an outer sheath in sequence from the inner side to the outer side, wherein the outer sheath is made of polyvinyl fluoride, the stranded cable core comprises a central reinforcing part, a plurality of optical fiber units and a plurality of wire units, the central reinforcing part is located in the center of the stranded cable core, the plurality of optical fiber units and the plurality of wire units are located on the periphery of the central reinforcing part, each wire unit is composed of a conductive body and an insulating layer, and the conductive body is located in the insulating layer.

2. The optical-electrical composite cable according to claim 1, wherein: the optical fiber unit comprises a loose tube and a colored optical fiber, the colored optical fiber is arranged in the loose tube, and a fiber paste is filled between the loose tube and the colored optical fiber.

3. The optical-electrical composite cable according to claim 1, wherein: the electric conductor is a copper wire.

4. The optical-electrical composite cable according to any one of claims 1 or 2, wherein: the number of the electric wire units is 3, the number of the optical fiber units is 2, and water blocking yarns are filled between every two electric wire units or every two optical fiber units or between the optical fiber units and the electric wire units.

5. The optical-electrical composite cable according to claim 2, wherein: the outer diameter of the loose tube is 2.0-3.5mm, and the number of the colored optical fibers is 1-24.

6. The optical-electrical composite cable according to claim 3, wherein: the insulating layer is made of ethylene-tetrafluoroethylene copolymer and has a thickness of 0.3-0.4 mm.

7. The optical-electrical composite cable according to claim 1, wherein: the non-metal armor layer is composed of a plurality of non-metal reinforcing parts, and the non-metal reinforcing parts are made of materials

A fiber-reinforced composite material.

8. The optical-electrical composite cable according to claim 7, wherein: the material of the central reinforcing part is a fiber reinforced composite material.

9. The optical-electrical composite cable according to claim 1, wherein: the thickness of the water-blocking tape is 0.1-0.3 mm.

10. The optical-electrical composite cable according to claim 1, wherein: the inner sheath is made of flame-retardant polyethylene, and the thickness of the inner sheath is 0.8-1.0 mm.

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