CN213277531U

CN213277531U - Thin-wall oil-resistant low-temperature-resistant flame-retardant locomotive cable

Info

Publication number: CN213277531U
Application number: CN202022258497.0U
Authority: CN
Inventors: 谢传斌
Original assignee: Hubei Kehang Cable Co ltd
Current assignee: Hubei Kehang Cable Co ltd
Priority date: 2020-10-12
Filing date: 2020-10-12
Publication date: 2021-05-25
Anticipated expiration: 2030-10-12

Abstract

The utility model relates to the technical field of cables, in particular to a thin-wall oil-resistant low-temperature-resistant flame-retardant locomotive cable, which comprises a PVC sheath, wherein the inner side of the PVC sheath is fixedly connected with an elastic layer, the inner side of the elastic layer is fixedly connected with a protective layer, the inner side of the protective layer is fixedly connected with an insulating layer, and the inner side of the insulating layer is wrapped with a plurality of guide cores; the protective layer includes fire-retardant layer, fire-retardant inboard fixedly connected with heat insulating layer in layer, the inboard fixedly connected with heat preservation on heat insulating layer. The utility model has the characteristics of resistant low temperature fire-retardant of resistant oil.

Description

Thin-wall oil-resistant low-temperature-resistant flame-retardant locomotive cable

Technical Field

The utility model relates to the technical field of cables, especially, relate to a thin wall is resistant oily low temperature resistance fire-retardant type locomotive cable.

Background

The cable is an electric energy or signal transmission device, usually comprises several or several groups of wire and passes through, but the crust among the prior art only singly plays insulating effect, can not play more guard action to the cable, and in the cable is in low temperature environment, because the condition that takes place the shrinkage of low temperature, leads to the cable to become fragile easily, when leading to the cable to carry out the bending, leads to the cable insulating layer to take place the damage easily, leads to the condition of fracture.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving when the cable that exists among the prior art carries out the bending, the insulating layer that leads to the cable easily takes place the damage, leads to the condition shortcoming of fracture, and the resistant low temperature fire-retardant type locomotive cable of resistant oil of a thin wall that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the thin-wall oil-resistant low-temperature-resistant flame-retardant locomotive cable comprises a PVC (polyvinyl chloride) sheath, wherein an elastic layer is fixedly connected to the inner side of the PVC sheath, a protective layer is fixedly connected to the inner side of the elastic layer, an insulating layer is fixedly connected to the inner side of the protective layer, and a plurality of guide cores are wrapped on the inner side of the insulating layer;

the protective layer includes fire-retardant layer, fire-retardant inboard fixedly connected with heat insulating layer in layer, the inboard fixedly connected with heat preservation on heat insulating layer.

Preferably, the guide core is made of copper material.

Preferably, the thickness ratio of the protective layer to the insulating layer is 2: 1.

Preferably, the insulating layer is made of polytetrafluoroethylene material.

Preferably, the thickness of the PVC sheath is 0.2mm-0.8 mm.

The utility model provides a thin wall is resistant oily anti low temperature fire-retardant type locomotive cable of nai oil, beneficial effect lies in: through the design of elastic layer, increased the elasticity of cable, when preventing that the cable from taking place the bending, the damaged condition appears, the design of protective layer simultaneously completely cuts off the temperature, has avoided the low temperature to cause the influence to damage the insulating layer.

Drawings

Fig. 1 is a schematic structural diagram of a thin-walled oil-resistant low-temperature-resistant flame-retardant locomotive cable provided by the utility model;

fig. 2 is a side view of the thin-walled oil-resistant low-temperature-resistant flame-retardant locomotive cable according to the present invention;

fig. 3 is the utility model provides a structural schematic diagram of the thin wall is resistant to low temperature fire-retardant type locomotive cable protection layer part of resistant oil.

In the figure: PVC sheath 1, elastic layer 2, protective layer 3, insulating layer 4, lead core 5, fire-retardant layer 6, heat insulating layer 7, heat preservation 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a thin-wall oil-resistant low-temperature-resistant flame-retardant locomotive cable comprises a PVC sheath 1, and the oil-resistant locomotive cable is subjected to oil resistance through the design of the PVC sheath 1.

The inner side of the PVC sheath 1 is fixedly connected with an elastic layer 2, the elastic layer 2 is made of rubber materials, the elasticity of the sheath is increased, when the cable is bent, the situation that the sheath of the cable is torn is avoided, the inner side of the elastic layer 2 is fixedly connected with a protective layer 3, the inner side of the protective layer 3 is fixedly connected with an insulating layer 4, and the inner side of the insulating layer 4 is wrapped with a plurality of guide cores 5;

protective layer 3 includes fire-

retardant layer

6, 6 inboard fixedly connected with heat insulating layer 7 in fire-retardant layer, the inboard fixedly connected with heat preservation 8 of heat insulating layer 7, fire-retardant layer 6 is made for the mica powder, play fire-retardant effect, heat insulating layer 7 is made for the rock wool, play isolated effect to external temperature, heat insulating layer 8 is made for polyurethane, play heat retaining effect to the inner core of cable, through the design of heat insulating layer 7 with heat insulating layer 8, play isolated effect to the temperature, it becomes fragile to have avoided the low temperature to insulating layer 4, when crooked, lead to the condition that the damage appears in insulating layer 4.

The guide core 5 is made of copper material, the thickness ratio of the protective layer 3 to the insulating layer 4 is 2:1, the insulating layer 4 is made of polytetrafluoroethylene material, and the thickness of the PVC sheath 1 is 0.2mm-0.8mm

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The thin-wall oil-resistant low-temperature-resistant flame-retardant locomotive cable comprises a PVC (polyvinyl chloride) sheath (1) and is characterized in that the inner side of the PVC sheath (1) is fixedly connected with an elastic layer (2), the inner side of the elastic layer (2) is fixedly connected with a protective layer (3), the inner side of the protective layer (3) is fixedly connected with an insulating layer (4), and a plurality of guide cores (5) are wrapped on the inner side of the insulating layer (4);

the protective layer (3) comprises a flame-retardant layer (6), the inner side of the flame-retardant layer (6) is fixedly connected with a heat-insulating layer (7), and the inner side of the heat-insulating layer (7) is fixedly connected with a heat-insulating layer (8).

2. The thin-walled oil-resistant low-temperature-resistant flame-retardant type locomotive cable according to claim 1, wherein the conductive core (5) is made of copper material.

3. The thin-walled oil-resistant low-temperature-resistant flame-retardant locomotive cable according to claim 1, wherein the thickness ratio of the protective layer (3) to the insulating layer (4) is 2: 1.

4. The thin-walled oil-resistant low-temperature-resistant flame-retardant locomotive cable according to claim 1, wherein the insulating layer (4) is made of polytetrafluoroethylene.

5. The thin-walled oil-resistant low-temperature-resistant flame-retardant locomotive cable according to claim 1, wherein the thickness of the PVC sheath (1) is 0.2mm-0.8 mm.