CN203300275U

CN203300275U - High-strength double-shielded flexible cable

Info

Publication number: CN203300275U
Application number: CN2013202689518U
Authority: CN
Inventors: 应存世
Original assignee: NINGBO RIYUE ELECTRIC WIRE AND CABLES MANUFACTURING Co Ltd
Current assignee: NINGBO RIYUE ELECTRIC WIRE AND CABLES MANUFACTURING Co Ltd
Priority date: 2013-05-17
Filing date: 2013-05-17
Publication date: 2013-11-20
Anticipated expiration: 2023-05-17

Abstract

The utility model discloses a high-strength double-shielded flexible cable. The flexible cable comprises a cable core and a sheath layer which wraps a periphery of the cable core. The cable core at least comprises one lead. Each lead comprises a conductor and an insulating layer which wraps the conductor. A bearing hemp rope is filled around the leads. A water blocking layer made of low density polyethylene is arranged between the bearing hemp rope and the sheath layer. A tinning copper wire and galvanized steel wire composite twisted wire winding reinforcement layer is arranged between the sheath layer and the cable core. A terylene braiding reinforcement layer which is formed through braiding several terylene filaments wraps a surface of the cable core. According to the flexible cable of the utility model, the galvanized steel wire and the tinning copper wire composite twisted wire are used and a shielding structure is wound between a corrugated aluminum sheath and the outer sheath as a winding spiral structure so that an electromagnetic wave is restrained to be emitted to the outside world; simultaneously, the terylene braiding reinforcement layer which is formed through braiding the several terylene filaments wraps the surface of the cable core so that tensile strength of the cable is further increased.

Description

A kind of high strength double shield flexible cable

Technical field

The utility model belongs to the cable technology field, is specifically related to a kind of high strength double shield flexible cable.

Background technology

Cable is ubiquitous in life, development along with society, the acceleration of urbanization process, the use of cable is more and more extensive, particularly in fields such as electric power, metallurgy, mining, petrochemical industry, architectural engineerings, the use amount of cable is larger, requires simultaneously cable to want bending good, water resistance is good, in case near the workman that the leak-stopping electricity is worked hurting.The insulating barrier of existing cable and the material of restrictive coating are pure ethylene-propylene rubber material, and complex process in extrusion also will be through high temperature vulcanized, the tail gas pollution atmosphere in sulfidation.For this reason, Chinese patent CN201220500122.3 discloses a kind of polyvinyl chloride elastomer plastic high strength water repellent electric cable, comprise cable core and be wrapped in cable core restrictive coating on every side, wherein cable core includes a wire at least, described wire comprises conductor and is wrapped in the insulating barrier of conductor outside, around wire, be filled with the carrying rope made of hemp, between the carrying rope made of hemp and restrictive coating, be provided with the water blocking layer that low density polyethylene (LDPE) is made, cable conductor forms because multiply soft copper skein silk closes, and insulating barrier and sheath material are the polyvinyl chloride elastomer plastic.Its advantage is at the outer parcel of cable insulation core stranding water blocking layer, makes the block-water effect of cable obviously promote.Shortcoming is still there is a small amount of electromagnetic interference, not yet reaches best effectiveness, and tensile strength is still not ideal enough simultaneously.

The utility model content

The purpose of this utility model is to provide a kind of high strength double shield flexible cable of new construction, and its effectiveness is better, and tensile strength is better simultaneously.

for realizing this purpose, the technical solution of the utility model is: a kind of high strength double shield flexible cable, comprise cable core and be wrapped in cable core restrictive coating on every side, wherein cable core includes a wire at least, described wire comprises conductor and is wrapped in the insulating barrier of conductor outside, around wire, be filled with the carrying rope made of hemp, between the carrying rope made of hemp and restrictive coating, be provided with the water blocking layer that low density polyethylene (LDPE) is made, between described restrictive coating and cable core, be provided with tinned copper wire and add the zinc-coated wire composite twisted wire around reinforced layer, described cable core surface wraps one and weaves by some dacron threads the terylene woven reinforced layer that forms.

As preferably, described restrictive coating is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.

As preferably, described black polyethylene sheath top layer is coated with the coated graphite layer.

As preferably, described conductor by many tin-coated copper single cords oppositely multiple strand form.

With respect to prior art; the utility model adopts by zinc-coated wire and tinned copper wire composite twisted wire; and with the structure bundle of winding screw shape around the shielding construction between corrugated aluminum sheath and oversheath; played the externally effect of emission of electromagnetic wave that suppresses; can be used as again the passage of short circuit current, play the protective effect of neutral core.Simultaneously, on the cable core surface, wrap one and weave by some dacron threads the terylene woven reinforced layer that forms, further improved the tensile strength of cable.

The accompanying drawing explanation

Fig. 1 is the utility model cross-sectional view.

Wherein: 1 is conductor, and 2 is insulating barrier, and 3 are the carrying rope made of hemp, and 4 is water blocking layer, and 5 for tinned copper wire adds the zinc-coated wire composite twisted wire around reinforced layer, and 6 is restrictive coating.

Embodiment

In conjunction with the embodiments the utility model is further illustrated with reference to the accompanying drawings.

As shown in Figure 1, a kind of high strength double shield flexible cable, comprise cable core and be wrapped in cable core restrictive coating on every side, wherein cable core includes a wire at least, described wire comprises conductor and is wrapped in the insulating barrier of conductor outside, around wire, be filled with the carrying rope made of hemp, between the carrying rope made of hemp and restrictive coating, be provided with the water blocking layer that low density polyethylene (LDPE) is made, between described restrictive coating and cable core, be provided with tinned copper wire and add the zinc-coated wire composite twisted wire around reinforced layer, described cable core surface wraps one and weaves by some dacron threads the terylene woven reinforced layer that forms.Wherein, described restrictive coating is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint; Described black polyethylene sheath top layer is coated with the coated graphite layer; Described conductor is oppositely twisted and forms again by many tin-coated copper single cords.

The improvement that the utility model is done mainly for high strength double shield soft cable structure, the foregoing is only the utility model preferred embodiment, non-so namely limit to the scope of the claims of the present utility model, therefore simple and easy variation and the equivalent transformation of such as with the utility model specification and graphic content, doing, all should be contained in the scope of the claims of the present utility model.

Claims

1. high strength double shield flexible cable, comprise cable core and be wrapped in cable core restrictive coating on every side, wherein cable core includes a wire at least, described wire comprises conductor and is wrapped in the insulating barrier of conductor outside, around wire, be filled with the carrying rope made of hemp, between the carrying rope made of hemp and restrictive coating, be provided with the water blocking layer that low density polyethylene (LDPE) is made, it is characterized in that: between described restrictive coating and cable core, be provided with tinned copper wire and add the zinc-coated wire composite twisted wire around reinforced layer, described cable core surface wraps one and weaves by some dacron threads the terylene woven reinforced layer that forms.

2. high strength double shield flexible cable according to claim 1, is characterized in that, described restrictive coating is comprised of wrinkle composite steel-plastic belt moisture-proof layer and the black polyethylene sheath of vertical bag overlap joint.

3. high strength double shield flexible cable according to claim 2, is characterized in that, described black polyethylene sheath top layer is coated with the coated graphite layer.

4. high strength double shield flexible cable according to claim 1, is characterized in that, described conductor is oppositely twisted and forms again by many tin-coated copper single cords.

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