CN212541986U - Multi-core cable with sub-wrapped aluminum sheath - Google Patents

Abstract

The utility model relates to a divide alclad sheath multicore cable, it includes the restrictive coating and sets up the wire in the sheath, the wire is provided with many, in the restrictive coating along its length direction and with the restrictive coating coaxial elastic strip that is provided with, offer the passageway of placing that is used for placing the wire on the elastic strip, it is provided with a plurality ofly to place the passageway. This application helps reducing tensile and twist reverse the operation and cause the damage to cable surface and inside conductor, promotes cable life's effect.

Description

Multi-core cable with sub-wrapped aluminum sheath

Technical Field

The application relates to the technical field of cables, in particular to a multi-core cable with a sub-packaging aluminum sheath.

Background

The cable includes power cable, control cable, compensation cable, shielding cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resistant cable, marine cable, mining cable, aluminum alloy cable and the like. They are composed of single or multi-strand wires and insulating layers, and are used for connecting circuits, electric appliances and the like.

In the related art, when the industrial cable is used, workers stretch and twist the cable to meet the cable laying requirements.

In view of the above-mentioned related technologies, the inventor believes that there is a defect that the cable surface and the inner conductor are damaged by both the stretching and twisting operations, and the service life of the cable is reduced.

SUMMERY OF THE UTILITY MODEL

In order to improve tensile and twist reverse the operation and cause the damage to cable surface and inside wire, reduce cable life, this application provides a branch and bag aluminium sheath multicore cable.

The application provides a divide alclad sheath multicore cable adopts following technical scheme:

the utility model provides a divide alclad sheath multicore cable, includes restrictive coating and the wire of setting in the sheath, the wire is provided with many, its length direction just is provided with the elasticity strip with the restrictive coating is coaxial in the restrictive coating in the protective coating, offer the passageway of placing that is used for placing the wire on the elasticity strip, it is provided with a plurality ofly to place the passageway.

Through adopting above-mentioned technical scheme, in the application, the staff stretches and twists reverse to the multicore cable, and the elasticity strip has weakened tensile and has twisted reverse the effect to the wire, helps improving tensile and twist reverse the operation and cause the damage to cable surface and inside wire, promotes the life of cable.

Preferably, the placing channels are even times of the conducting wires, and the conducting wires are sequentially laid in the placing channels at intervals.

By adopting the technical scheme, the placing channel is set to be even times of the conducting wire, so that the protection effect of the elastic strip on the conducting wire is promoted.

Preferably, the placing channel between any two adjacent leads is filled with fireproof mud.

Through adopting above-mentioned technical scheme, pack fire prevention mud through placing the passageway between two adjacent wires, help promoting the fire proofness of wire.

Preferably, any of the wires is provided as a copper conductor.

Through adopting above-mentioned technical scheme, through setting up the wire into the copper conductor, help promoting the speed of wire transmission.

Preferably, any one of the copper conductors is externally coated with a protective layer.

Through adopting above-mentioned technical scheme, protect the copper conductor by the protective layer, help promoting the life of copper conductor.

Preferably, the protective layer is sequentially provided with a mica tape insulating layer, a metal sheath and a polyethylene isolating sleeve layer.

By adopting the technical scheme, the mica tape insulating layer, the metal sheath and the polyethylene isolating sleeve layer have the protection effect on the conductor, and the stability of the wire transmission is favorably protected in the wire transmission process.

Preferably, the metal sheath is provided as a metal aluminum sheath layer.

Through adopting above-mentioned technical scheme, through setting up metal sheath into metallic aluminum sheath, help promoting the anti ability of buckling of wire.

Preferably, the sheath layer comprises a first flame-retardant bag layer, a fireproof layer, a second flame-retardant bag layer and a polyolefin sheath layer.

Through adopting above-mentioned technical scheme, through the guard action of first fire-retardant sack layer, flame retardant coating, the fire-retardant sack layer of second and polyolefin restrictive coating to the conductor, help promoting the life of conductor on the one hand, on the other hand helps promoting the fire-proof ability of wire.

Preferably, the second flame-retardant bag is wrapped with a polyester film layer.

By adopting the technical scheme, the polyester film layer is wrapped outside the second flame-retardant layer, so that the hardness and toughness of the multi-core cable are improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the wire is placed in the placing channel of the elastic strip, so that damage to the surface of the cable and the inner wire core caused by stretching and twisting operations is reduced, and the service life of the cable is prolonged;

2. the arrangement of the fire-proof mud, the first flame-retardant layer and the second flame-retardant layer is beneficial to improving the fire resistance of the multi-core cable;

3. the arrangement of the metal aluminum sheath and the polyester film layer is beneficial to improving the toughness and the bending resistance of the multi-core cable.

Drawings

Fig. 1 is a cross-sectional view mainly embodying a structure of a multi-core cable with a sub-clad aluminum sheath.

Reference numerals: 1. a sheath layer; 11. a first flame retardant bagging layer; 12. a fire barrier layer; 13. a second flame-retardant bag layer; 131. a polyester film layer; 14. a polyolefin jacket layer; 2. a wire; 21. a protective layer; 211. a mica tape insulating layer; 212. a metallic aluminum jacket layer; 213. a polyethylene barrier jacket layer; 3. an elastic strip; 31. a placement channel; 311. fire-proof mud.

Detailed Description

The present application is described in further detail below with reference to fig. 1.

The embodiment of the application discloses a multi-core cable with a sub-wrapped aluminum sheath.

Referring to fig. 1, a divide alclad sheath multicore cable, includes restrictive coating 1 and sets up wire 2 in the sheath, and wire 2 is provided with three, follows its length direction in the restrictive coating 1 and with the 1 coaxial elastic strip 3 that is provided with of restrictive coating, offers the passageway 31 of placing that is used for placing wire 2 on the elastic strip 3, places passageway 31 and is provided with six.

In the application, the staff places three wire 2 in placing the passageway 31 of elasticity strip 3, then wraps up restrictive coating 1 in the wire 2 outside.

Referring to fig. 1, any one of the wires 2 is a copper conductor, a mica tape insulating layer 211, a metal aluminum sheath layer 212 and a polyethylene isolating sleeve layer 213 are sequentially wrapped on the outer side of any one of the copper conductors, the three copper conductors are sequentially and uniformly laid in the placing channel 31 at intervals, the polyethylene isolating sleeve layer 213 on the outermost layer of the copper conductor is tightly abutted to the inner side wall of the placing channel 31, and the placing channel 31 between any two adjacent wires 2 is filled with fireproof mud 311. The outer side of the elastic strip 3 is sequentially wrapped with a first flame-retardant bag layer 11, a fireproof layer 12, a second flame-retardant bag layer 13, a polyester film layer 131 and a polyolefin sheath layer 14.

The implementation principle of a multi-core cable with a sub-wrapped aluminum sheath in the embodiment of the application is as follows: in the application, the staff wraps up mica tape insulating layer 211 in proper order in the copper conductor outside, metal aluminium restrictive coating 212 and polyethylene keep apart jacket layer 213, then lay the copper conductor that the parcel was accomplished in elastic strip 3 evenly spaced in proper order, then pack fire prevention mud 311 in the passageway 31 of placing between arbitrary two adjacent copper conductors, wrap up first fire-retardant bag layer 11 in proper order outside elastic strip 3 at last, flame retardant coating 12, the fire-retardant bag layer 13 of second, polyester film layer 131 and polyolefin restrictive coating 14.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a divide packet of aluminium sheath multicore cable which characterized in that: including restrictive coating (1) and wire (2) of setting in the sheath, wire (2) are provided with many, follow its length direction in restrictive coating (1) and with restrictive coating (1) coaxial elastic strip (3) that is provided with, offer passageway (31) of placing that are used for placing wire (2) on elastic strip (3), it is provided with a plurality ofly to place passageway (31).

2. The multi-core cable with a sub-coated aluminum sheath of claim 1, wherein: the placing channel (31) is even times of the conducting wires (2), and the conducting wires (2) are sequentially laid in the placing channel (31) at intervals.

3. The multi-core cable with a sub-coated aluminum sheath of claim 2, wherein: fireproof mud (311) is filled in a placing channel (31) between any two adjacent leads (2).

4. The multi-core cable with a sub-coated aluminum sheath of claim 1, wherein: any one of the leads (2) is provided with a copper conductor.

5. The multi-core cable with a sub-coated aluminum sheath of claim 4, wherein: the outer side of any one copper conductor is wrapped with a protective layer (21).

6. The multi-core cable with a sub-coated aluminum sheath of claim 5, wherein: the protective layer (21) is sequentially provided with a mica tape insulating layer (211), a metal sheath and a polyethylene isolating sleeve layer (213).

7. The multi-core cable with a sub-coated aluminum sheath of claim 6, wherein: the metal sheath is provided as a metallic aluminum sheath layer (212).

8. The multi-core cable with a sub-coated aluminum sheath of claim 1, wherein: the sheath layer (1) comprises a first flame-retardant bag layer (11), a fireproof layer (12), a second flame-retardant bag layer (13) and a polyolefin sheath layer (14).

9. The multi-core cable with a sub-coated aluminum sheath of claim 8, wherein: the second flame-retardant bag layer (13) is wrapped with a polyester film layer (131).

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