CN215868723U

CN215868723U - Wear-resisting type waterproof cable

Info

Publication number: CN215868723U
Application number: CN202122225670.1U
Authority: CN
Inventors: 解海萍
Original assignee: Tianjin Zhengbiao Jinda Cable Group Co ltd
Current assignee: Tianjin Zhengbiao Jinda Cable Group Co ltd
Priority date: 2021-09-14
Filing date: 2021-09-14
Publication date: 2022-02-18
Anticipated expiration: 2031-09-14

Abstract

The utility model is a wear-resistant waterproof cable, comprising: a plurality of cable cores; the inner functional layer comprises insulation reinforcing ropes, the cable cores are distributed at intervals outside the insulation reinforcing ropes, an insulation support plate is arranged between every two adjacent cable cores, and elastic insulation layers are filled in gaps between the cable cores and the support plate; outer functional layer, outer functional layer cladding are in the functional layer outside in, and outer functional layer is by interior water blocking layer, buffer layer, flame retardant coating and the wear-resisting sheath of blocking water to outer including in proper order. The reinforcing ropes and the insulating support plates are matched to improve the torsion resistance and tensile resistance of the cable; the waterproof layer and the waterproof buffer layer improve the waterproof performance of the cable; the wear-resistant sheath enhances the protection effect on each layer on the inner side and improves the wear resistance of the cable.

Description

Wear-resisting type waterproof cable

Technical Field

The utility model relates to the technical field of waterproof cables, in particular to a wear-resistant waterproof cable.

Background

Outdoor aerial cables outside a factory building in cables in a factory area have large occupation ratio, vibration near the factory building is large, when the existing outdoor aerial cables are fixed on a wall body of the factory building, the cables are easy to rub against the wall body or the cables, and after the outdoor aerial cables are used for a long time, an outer protective layer and each functional layer are easy to wear and lose efficacy, so that circuit faults occur; outdoor steam is heavier, and current outdoor aerial [ insulated ] cable's waterproof performance is relatively poor, easily leads to circuit fault's emergence equally.

Disclosure of Invention

The utility model aims to solve the defects of the prior art and provides a wear-resistant waterproof cable.

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

a wear resistant waterproof cable comprising:

a plurality of cable cores;

the inner functional layer comprises insulation reinforcing ropes, the cable cores are distributed at intervals outside the insulation reinforcing ropes, an insulation support plate is arranged between every two adjacent cable cores, and elastic insulation layers are filled in gaps between the cable cores and the support plate;

outer functional layer, outer functional layer cladding are in the functional layer outside in, and outer functional layer is by interior water blocking layer, buffer layer, flame retardant coating and the wear-resisting sheath of blocking water to outer including in proper order.

Furthermore, the insulating reinforcing rope comprises a steel wire rope positioned in the center, and a rubber layer is coated outside the steel wire rope.

Furthermore, the number of the cable cores is three, and the cable cores are arranged around the insulation reinforcing ropes at equal angular intervals.

Furthermore, the insulating support plate is a rubber plate with a rectangular cross section.

Further, the elastic insulation layer is a neoprene thermoplastic elastomer layer.

Furthermore, the water-resistant layer is a water-resistant ointment layer.

Further, the water blocking buffer layer is a water blocking tape wrapping layer.

Further, the flame retardant coating is fire resistant mica tape around the covering.

Further, the wear-resistant sheath is a TPEE elastomer sheath.

The utility model has the beneficial effects that: the insulation reinforcing rope and the insulation support plate are matched to improve the torsion resistance and tensile resistance of the cable; the waterproof layer and the waterproof buffer layer improve the waterproof performance of the cable; the wear-resistant sheath enhances the protection effect on each layer on the inner side and improves the wear resistance of the cable.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: 1-a cable core; 2-an inner functional layer; 21-an insulating reinforcing cord; 22-an insulating support plate; 23-an elastic insulating layer; 3-an outer functional layer; 31-a water resistant layer; 32-water blocking buffer layer; 33-a refractory layer; 34-a wear-resistant sheath;

the following detailed description will be made in conjunction with embodiments of the present invention with reference to the accompanying drawings.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown, the present embodiment includes:

the cable comprises three cable cores 1, wherein the cable cores 1 are copper stranded conductors, and if the tensile strength of the cable is further improved, the cable cores 1 can be replaced by aluminum alloy stranded conductors;

the inner functional layer 2, the inner functional layer 2 includes the insulating reinforced rope 21, the insulating reinforced rope 21 includes the wire rope located in the centre, the wire rope is coated with the rubber layer, the insulating reinforced rope 21 can guarantee the strength of resisting torsion and tensile strength of the cable effectively, in order to guarantee the aerial laying performance of large-span of cable; the cable cores 1 are arranged around the insulating reinforcing ropes 21 at equal angular intervals from the outer sides, the insulating support plate 22 is arranged between the adjacent cable cores 1, the insulating support plate 22 is a rubber plate with a rectangular cross section, and in addition, the inner ends of the insulating support plates 22 can be provided with cambered surfaces matched with the insulating reinforcing ropes 21, so that the perpendicularity of the inner ends of the insulating support plates 22 and the side walls of the insulating reinforcing ropes 21 can be ensured; an elastic insulating layer 23 is filled in a gap between the cable core 1 and the support plate 22, and the elastic insulating layer 23 is an oil-resistant and aging-resistant chloroprene rubber thermoplastic elastomer layer; the insulating support plate 22 plays a role in separating the cable cores 1, so that the situation that the distance between the adjacent cable cores 1 is too close to reduce the insulating effect when the elastic insulating layer 23 is extruded is avoided, and the insulating effect between the cable cores 1 is ensured; meanwhile, the insulating support plate 22 also plays a certain radial supporting role, so that the condition that the elastic insulating layer 23 is unevenly extruded (the thickness of the elastic insulating layer 23 on the outer side of the cable core 1 is different) can be effectively avoided, and the insulativity of the cable core 1 and the outside is ensured.

The cable comprises an outer functional layer 3, wherein the outer functional layer 3 is coated on the outer side of an inner functional layer 2, and the outer functional layer 3 sequentially comprises a water-blocking layer 31, a water-blocking buffer layer 32, a fire-resistant layer 33 and a wear-resistant sheath 34 from inside to outside, wherein the water-blocking layer 31 is a water-blocking ointment layer, and the water-blocking ointment contains water-blocking powder components which expand when meeting water and can prevent water from continuously invading the interior of the cable; the water blocking buffer layer 32 is a water blocking tape wrapping layer, a high water absorption material contained in the water blocking buffer layer can be rapidly expanded when the water blocking buffer layer meets water, and a water permeating channel is filled in a volume increasing mode, so that an auxiliary water blocking effect is realized; the fire-resistant layer 33 is a fire-resistant mica tape wrapping layer, and the fire-resistant layer can effectively improve the high-temperature resistance and the combustion resistance of the cable; the wear-resistant sheath 34 is a TPEE elastomer sheath with good mechanical properties and heat resistance, and the material of the wear-resistant sheath 34 can be adjusted according to the need, for example, a weather-resistant polyethylene sheath with poor hydrophilicity can be used in rainy areas.

When the cable is used, the torsion resistance and the tensile resistance of the cable are improved by matching the insulating reinforcing ropes 21 and the insulating support plates 22; the waterproof layer 31 and the waterproof buffer layer 32 improve the waterproof performance of the cable; the wear-resistant sheath 34 enhances the protection of the inner layers and improves the wear resistance of the cable.

The utility model has been described in connection with the accompanying drawings, it is to be understood that the utility model is not limited to the specific embodiments disclosed, but is intended to cover various modifications, adaptations or uses of the utility model, and all such modifications and variations are within the scope of the utility model.

Claims

1. A wear-resistant waterproof cable, comprising:

a plurality of cable cores (1);

the cable comprises an inner functional layer (2), wherein the inner functional layer (2) comprises insulating reinforcing ropes (21), cable cores (1) are distributed at intervals outside the insulating reinforcing ropes (21), an insulating support plate (22) is arranged between every two adjacent cable cores (1), and an elastic insulating layer (23) is filled in a gap between each cable core (1) and each support plate (22);

outer functional layer (3), functional layer (2) outside including outer functional layer (3) cladding, outer functional layer (3) is from inside to outside in proper order including water blocking layer (31), buffer layer (32) that blocks water, flame retardant coating (33) and wear-resisting sheath (34).

2. A wear-resistant waterproof cable according to claim 1, characterized in that the insulating reinforcing cords (21) comprise steel cords in the center, which are coated with a rubber layer.

3. A wear-resistant and waterproof cable as claimed in claim 1, characterized in that the number of the cable cores (1) is three and arranged at equal angular intervals around the insulating and reinforcing cords (21).

4. A wear-resistant and waterproof cable as claimed in claim 1, characterized in that the insulating support plate (22) is a rubber plate with a rectangular cross section.

5. A wear-resistant and waterproof cable as claimed in claim 1, characterized in that the elastic insulation layer (23) is a neoprene thermoplastic elastomer layer.

6. A wear-resistant and waterproof cable according to claim 1, wherein the water-blocking layer (31) is a water-blocking ointment layer.

7. A wear-resistant waterproof cable according to claim 1, wherein the water-blocking buffer layer (32) is a water-blocking tape wrapping.

8. A wear-resistant waterproof cable according to claim 1, characterized in that the fire-resistant layer (33) is a fire-resistant mica tape wrapping layer.

9. A wear-resistant and waterproof cable as claimed in claim 1, characterized in that the wear-resistant sheath (34) is a TPEE elastomer sheath.