CN210123667U - Bidirectional waterproof moisture-proof control cable - Google Patents

Abstract

The utility model relates to a two-way waterproof moisture resistance control cable has solved the not enough of prior art, and technical scheme is: including a plurality of cable cores, all cable cores are all wrapped and are established in the isolation layer, the outside package of isolation layer is equipped with the metallic shield layer, the outside package on metallic shield layer is equipped with the polyethylene sheath, the outside package of polyethylene sheath is equipped with the inner liner, and the outside package of inner liner is equipped with foaming type environmental protection polyurethane sheath, the rope that blocks water of environmental protection is filled out in the clearance department in the isolation layer, the cable core all includes conductor and mixed type environmental protection polyurethane insulating layer, mixed type environmental protection polyurethane insulating layer wraps the outside at the conductor, the isolation layer is double-deck non-hygroscopicity environmental protection and blocks water the area around the package isolation layer.

Description

Bidirectional waterproof moisture-proof control cable

Technical Field

The utility model relates to a cable, in particular to two-way waterproof moisture resistance control cable.

Background

The cable is used for transmitting electric energy or control signals, and the existing waterproof cable structure comprises a conductor, an insulating layer, an isolating layer, a metal shielding layer, an inner protection layer, a metal armor and an outer sheath which adopts high-density polyethylene. When the existing cable is stranded and filled with cable cores, waterproof filler is not used, and the water blocking effect is not generated; the insulation adopts crosslinked polyethylene insulation material, and the insulation is broken down after the water enters the insulation material and runs for a long time; the outer sheath adopts high-density polyethylene to run for a long time after meeting water, and the outer sheath can not play a role in water blocking for a long time.

Chinese patent publication No.: 109643592a, published 2019-04-16, discloses a cable comprising a plurality of inner insulating cores, wherein the inner insulating cores are covered with an insulator, and the insulator has a higher tensile elastic modulus and a lower friction coefficient than a vinyl chloride resin for electric wires.

However, the technical scheme still exists: when the existing cable is stranded and filled with cable cores, waterproof filler is not used, and the water blocking effect is not generated; the insulation adopts crosslinked polyethylene insulation material, and the insulation is broken down after the water enters the insulation material and runs for a long time; the outer sheath adopts high density polyethylene to run for a long time after meeting water, and the outer sheath can not play a role of water resistance for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the prior art has no waterproof filler and no water blocking effect when the cable stranding core is twisted and filled; the insulation adopts crosslinked polyethylene insulation material, and the insulation is broken down after the water enters the insulation material and runs for a long time; the outer sheath adopts high-density polyethylene to run for a long time after meeting water, and the outer sheath can not play a role in water blocking for a long time, so that the bidirectional waterproof and moisture-proof control cable is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a two-way waterproof moisture resistance control cable which characterized in that: including a plurality of cable cores, all cable cores are all wrapped and are established in the isolation layer, the outside package of isolation layer is equipped with the metallic shield layer, the outside package on metallic shield layer is equipped with the polyethylene sheath, the outside package of polyethylene sheath is equipped with the inner liner, and the outside package of inner liner is equipped with foaming type environmental protection polyurethane sheath, the rope that blocks water of environmental protection is filled out in the clearance department in the isolation layer, the cable core all includes conductor and mixed type environmental protection polyurethane insulating layer, mixed type environmental protection polyurethane insulating layer wraps the outside at the conductor, the isolation layer is double-deck non-hygroscopicity environmental protection and blocks water the area around the package isolation layer. The utility model fills the environmental protection water-blocking rope in the stranding process of the cabling core to fill the cable round and compact, so that the cable has a longitudinal water-blocking structure, and effectively prevents the water or moisture from diffusing along the longitudinal direction of the cable; the isolation layer of the cable is formed by wrapping a double-layer non-hygroscopic environment-friendly water-blocking tape, so that the cable has a longitudinal water-blocking structure, the metal shielding layer is woven by round copper wires for electricians, the purpose is to prevent external electromagnetic signals from interfering the current of the cable, and the inner liner layer is made of a high-density polyethylene sheath material, so that the water-blocking effect is improved; after the inner lining layer is heated at high temperature, the plastic surface is melted and bonded by adopting an aluminum-plastic composite belt, so that the outer sheath of the extruded cable can be better adhered together, and the radial water-blocking effect of the cable is improved; the outer sheath is made of a foaming type environment-friendly polyurethane sheath, when the density of the cable material is close to water and the thickness of the mixed foaming type sheath material is extruded by technically key customization, the cable floats out of the water surface or suspended in the water after the nominal thickness is reached through the design thickness, and the sheath extrudes more thickness in the use process, so that the cable floats out of the water surface. The utility model discloses the effectual problem of having solved the cable vertically and radially blocking water has prolonged the cable in the special environment under humidity, under water under the life, has improved the water-proof effects of cable.

Preferably, the metal shielding layer is formed by weaving round copper wires.

Preferably, the lining layer is an aluminum-plastic composite tape longitudinally-wrapped lining layer.

Preferably, the foamed environmentally friendly polyurethane jacket has a thickness at least twice the thickness of the inner liner. The utility model discloses in so express only a general scope, the most suitable way is to guarantee to rely on the buoyancy of foaming type environmental protection polyurethane sheath production in aqueous to be greater than the gravity of unit length cable in the unit length cable.

Preferably, the thickness of the hybrid environment-friendly polyurethane insulating layer is greater than that of the lining layer.

Preferably, the cable comprises an auxiliary cable core and a main cable core, wherein the center of the cable core is the main cable core, and the auxiliary cable core is arranged on the outer side of the main cable core in a surrounding mode.

Preferably, all the auxiliary cable cores are uniformly distributed.

The utility model discloses a substantive effect is: the utility model discloses the effectual problem of having solved the cable vertically and radially blocking water has prolonged the cable in the special environment under humidity, under water under the life, has improved the water-proof effects of cable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. the cable comprises a conductor, 2, a mixed environment-friendly polyurethane insulating layer, 3, an environment-friendly water blocking rope, 4, an isolating layer, 5, a metal shielding layer, 6, a polyethylene sheath, 7, an inner lining layer and 8, a foaming environment-friendly polyurethane sheath.

Detailed Description

The technical solution of the present invention is further specifically described below by way of specific embodiments and with reference to the accompanying drawings.

The utility model provides a two-way waterproof moisture resistance control cable (see attached figure 1), includes a plurality of cable cores, and all cable cores all wrap and establish in isolation layer 4, the outside package of isolation layer is equipped with metallic shield layer 5, metallic shield layer's outside package is equipped with polyethylene sheath 6, polyethylene sheath's outside package is equipped with inside lining 7 layers, and the outside package of inside lining is equipped with foaming type environmental protection polyurethane sheath 8, the environmental protection rope 3 that blocks water is filled out to the intraformational space department of isolation, the cable core all includes conductor 1 and mixed type environmental protection polyurethane insulating layer 2, mixed type environmental protection polyurethane insulating layer wraps the outside at the conductor, the isolation layer is double-deck non-hygroscopicity environmental protection water-blocking tape around the package isolation layer. The metal shielding layer is formed by weaving round copper wires. The inner liner is a longitudinally wrapped inner liner of an aluminum-plastic composite belt. The thickness of the foaming type environment-friendly polyurethane sheath is at least twice of that of the lining layer. The thickness of the mixed environment-friendly polyurethane insulating layer is larger than that of the lining layer. The cable comprises an auxiliary cable core and a main cable core, wherein the central position of the cable core is the main cable core, and the auxiliary cable core is arranged on the outer side of the main cable core in a surrounding mode. All the auxiliary cable cores are uniformly distributed. This is only a rough range in this embodiment, and it is most appropriate to ensure that the buoyancy generated in water by the foamed environmental-friendly polyurethane sheath per unit length of the cable is larger than the gravity per unit length of the cable.

The embodiment effectively solves the problem of longitudinal and radial water resistance of the cable, prolongs the service life of the cable in special environments such as moist environment, underwater environment and the like, and improves the waterproof effect of the cable.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the scope of the claims.

Claims (7)

1. The utility model provides a two-way waterproof moisture resistance control cable which characterized in that: including a plurality of cable cores, all cable cores are all wrapped and are established in the isolation layer, the outside package of isolation layer is equipped with the metallic shield layer, the outside package on metallic shield layer is equipped with the polyethylene sheath, the outside package of polyethylene sheath is equipped with the inner liner, and the outside package of inner liner is equipped with foaming type environmental protection polyurethane sheath, the rope that blocks water of environmental protection is filled out in the clearance department in the isolation layer, the cable core all includes conductor and mixed type environmental protection polyurethane insulating layer, mixed type environmental protection polyurethane insulating layer wraps the outside at the conductor, the isolation layer is double-deck non-hygroscopicity environmental protection and blocks water the area around the package isolation layer.

2. The bi-directional waterproof moisture resistant control cable of claim 1, wherein: the metal shielding layer is formed by weaving round copper wires.

3. The bi-directional waterproof moisture resistant control cable of claim 1, wherein: the inner liner is a longitudinally wrapped inner liner of an aluminum-plastic composite belt.

4. The bi-directional waterproof moisture resistant control cable of claim 1 or 2 or 3, characterized in that: the thickness of the foaming type environment-friendly polyurethane sheath is at least twice of that of the lining layer.

5. The bi-directional waterproof moisture resistant control cable of claim 1 or 2 or 3, characterized in that: the thickness of the mixed environment-friendly polyurethane insulating layer is larger than that of the lining layer.

6. The bi-directional waterproof moisture resistant control cable of claim 5, wherein: the cable comprises an auxiliary cable core and a main cable core, wherein the central position of the cable core is the main cable core, and the auxiliary cable core is arranged on the outer side of the main cable core in a surrounding mode.

7. The bi-directional waterproof moisture resistant control cable of claim 6, wherein: all the auxiliary cable cores are uniformly distributed.

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