Insulated overhead cable with long service life

Abstract

The utility model discloses an insulating overhead cable with long service life, which comprises an insulating overhead cable body, a protective rotating cylinder is arranged outside the insulating overhead cable body, a wear-resistant layer is arranged on the outer surface of the protective rotating cylinder, a smooth coating is arranged on the outer surface of the wear-resistant layer, and the outer surface of the smooth coating is provided with a protective layer. A mounting hole is formed in the inner wall of the protective rotating cylinder, and a plastic ball is movably mounted in the mounting hole; and the mounting groove is formed in the outer surface of the insulated aerial cable body. According to the insulated overhead cable with the long service life, the rotatable protective rotating cylinder is arranged on the surface of the insulated overhead cable body, and when birds stay on the protective rotating cylinder, the protective rotating cylinder is stressed to rotate, so that the birds cannot stay on the surface of the protective rotating cylinder, and the birds are prevented from damaging the surface of the insulated overhead cable body; and meanwhile, birds are prevented from staying on the insulated overhead cable, so that the insulated overhead cable is prevented from being damaged due to excessive tensile force, and the service life of the insulated overhead cable body is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of insulating overhead cables, in particular to an insulating overhead cable with a long service life. Background Art

[0002] Insulated overhead cable, also known as overhead insulated cable, is an overhead conductor equipped with an insulating layer and a protective sheath. This cable is manufactured using a production process similar to that of cross-linked cables and is a new way of transmitting electricity between overhead conductors and underground cables. Overhead cables are all single-core and can be divided into hard aluminum wire structure, hard-drawn copper wire structure, aluminum alloy wire structure, steel core or aluminum alloy core support structure and self-supporting three-core composite structure according to their different structures. The main features of this cable include high power supply reliability, good power supply safety, convenient installation and maintenance, and reasonable economy.

[0003] China Authorization Announcement No. CN216250121U discloses a novel insulated overhead cable, comprising a cable body, the cable body comprising a filling layer, a plurality of cable cores fixedly inserted inside the filling layer, a shielding layer fixedly connected to the outer side of the filling layer, a buffer layer fixedly connected to the outer side wall of the shielding layer, a heat insulation layer fixedly connected to the outer side wall of the buffer layer, a protective layer fixedly connected to the outer side of the heat insulation layer, and a sheath layer fixedly connected to the outer side of the protective layer. The utility model has excellent impact resistance through the arrangement of a multi-layer structure, can meet the use conditions of the cable in harsh environments, and greatly improves the service life of the cable.

[0004] When existing insulated overhead cables are used outdoors, birds will stay on the insulated overhead cables, and the bird claws will damage the surface of the insulated overhead cables. In addition, the resting birds will increase the weight and tension of the insulated overhead cables, thereby causing damage to the insulated overhead cables and reducing the service life of the insulated overhead cables. For this reason, we propose an insulated overhead cable with a long life. Utility Model Content

[0005] The utility model aims to provide an insulated overhead cable with a long service life, so as to solve the problem in the above-mentioned background technology that when the existing insulated overhead cables are used outdoors, birds may stay on the insulated overhead cables, and the bird claws may damage the surface of the insulated overhead cables, and the resting birds may increase the weight borne by the insulated overhead cables, increase the tension, and thus cause damage to the insulated overhead cables, thereby reducing the service life of the insulated overhead cables.

[0006] To achieve the above object, the utility model provides the following technical solutions: a long-life insulated overhead cable, comprising an insulated overhead cable body, a protective rotating cylinder is installed on the outside of the insulated overhead cable body, a wear-resistant layer is installed on the outer surface of the protective rotating cylinder, a smooth coating is provided on the outer surface of the wear-resistant layer, a mounting hole is opened on the inner wall of the protective rotating cylinder, and a plastic ball is movably installed inside the mounting hole;

[0007] The installation groove is arranged on the outer surface of the insulating overhead cable body, a plastic ring is installed inside the installation groove, and a limited movable groove is arranged on the outer surface of the plastic ring.

[0008] Preferably, the shape and size of the interior of the installation groove match the shape and size of the plastic ring.

[0009] Preferably, the plastic ring is made of common hard and smooth plastic, and the surface of the plastic ring is smoothed.

[0010] Preferably, the plastic ball is made of common hard and smooth plastic, and the surface of the plastic ball is smoothed.

[0011] Preferably, the protective rotating cylinder is movably connected to the plastic ring through a plastic ball and a limiting movable groove.

[0012] Preferably, the diameter of the installation groove is larger than the diameter of the insulating overhead cable body, and the installation groove is made of common hard plastic.

[0013] Preferably, the smooth coating is made of latex paint material.

[0014] Compared with the prior art, the utility model provides an insulating overhead cable with a long life, which has the following beneficial effects: the insulating overhead cable with a long life is provided with a rotatable protective rotating cylinder on the surface of the insulating overhead cable body. When a bird stays on the protective rotating cylinder, the protective rotating cylinder is forced to rotate, thereby preventing the bird from staying on the surface, thereby preventing the bird from damaging the surface of the insulating overhead cable body, and at the same time preventing the bird from staying on the insulating overhead cable, causing the insulating overhead cable to be damaged by excessive tension, thereby extending the service life of the insulating overhead cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model.

[0017] In the figure: 1. Insulated overhead cable body; 2. Protective rotating cylinder; 3. Smooth coating; 4. Wear-resistant layer; 5. Plastic ring; 6. Mounting groove; 7. Plastic ball; 8. Limit movable groove; 9. Mounting hole. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-2 A long-life insulating overhead cable comprises an insulating overhead cable body 1, a protective rotating cylinder 2 is installed on the outside of the insulating overhead cable body 1, a wear-resistant layer 4 is installed on the outer surface of the protective rotating cylinder 2, and a smooth coating 3 is arranged on the outer surface of the wear-resistant layer 4; the smooth coating 3 is made of latex paint material, an installation hole 9 is opened on the inner wall of the protective rotating cylinder 2, and a plastic ball 7 is movably installed inside the installation hole 9; the plastic ball 7 is made of common hard smooth plastic, and the surface of the plastic ball 7 is smoothed; an installation groove 6 is opened on the outer surface of the insulating overhead cable body 1; the diameter of the installation groove 6 is larger than the diameter of the insulating overhead cable body 1, and the installation groove 6 is made of common hard plastic, and a plastic ring 5 is installed inside the installation groove 6; the installation The shape and size of the inside of the groove 6 are consistent with the shape and size of the plastic ring 5; the plastic ring 5 is made of common hard and smooth plastic, and the surface of the plastic ring 5 is smoothed, and the outer surface of the plastic ring 5 is provided with a limited movable groove 8; the protective rotating cylinder 2 is movably connected to the plastic ring 5 through the plastic ball 7 and the limited movable groove 8; by arranging a rotatable protective rotating cylinder 2 on the surface of the insulating overhead cable body 1, when a bird stays on the protective rotating cylinder 2, the protective rotating cylinder 2 is forced to rotate, so that the bird cannot stay on its surface, thereby preventing the bird from damaging the surface of the insulating overhead cable body 1, and at the same time preventing the bird from staying on the insulating overhead cable, causing the insulating overhead cable to be damaged by excessive tension, thereby extending the service life of the insulating overhead cable body 1.

[0020] Working principle: when using the long-life insulated overhead cable, first, when a bird stays on the protective rotating cylinder 2 outside the insulating overhead cable body 1, the surface of the smooth coating 3 made of latex paint is very smooth, making it difficult for the bird's claws to grab the protective rotating cylinder 2 or difficult to stand on the surface of the smooth coating 3. Then, when the bird finishes standing on the surface of the smooth coating 3, the protective rotating cylinder 2 will be affected by the gravity of the bird. Under the action of this gravity, the protective rotating cylinder 2 is rotated on the limiting movable groove 8 through the plastic ball 7 and the limiting movable groove 8, so that the bird cannot stand on the protective rotating cylinder 2, thereby effectively preventing the bird from standing on the insulated overhead cable and causing damage to the insulated overhead cable, thereby extending the service life of the insulated overhead cable. The plastic ring 5 and the plastic ball 7 are made of common hard and smooth plastics, such as polycarbonate, polymethyl methacrylate, polyamide, polyester, etc. These plastics have excellent physical and mechanical properties, chemical stability and processing performance. This is the working principle of the long-life insulated overhead cable.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A long-life insulated overhead cable, characterized in that: include: An insulating overhead cable body (1), wherein a protective rotating cylinder (2) is installed on the outside of the insulating overhead cable body (1), a wear-resistant layer (4) is installed on the outer surface of the protective rotating cylinder (2), a smooth coating (3) is provided on the outer surface of the wear-resistant layer (4), a mounting hole (9) is opened on the inner wall of the protective rotating cylinder (2), and a plastic ball (7) is movably installed inside the mounting hole (9); A mounting groove (6) is provided on the outer surface of the insulating overhead cable body (1), a plastic ring (5) is installed inside the mounting groove (6), and a limited movable groove (8) is provided on the outer surface of the plastic ring (5).

2. A long-life insulated overhead cable according to claim 1, characterized in that: The shape and size of the interior of the installation groove (6) match the shape and size of the plastic ring (5).

3. A long-life insulated overhead cable according to claim 1, characterized in that: The plastic ring (5) is made of common hard and smooth plastic, and the surface of the plastic ring (5) is smoothed.

4. A long-life insulated overhead cable according to claim 1, characterized in that: The plastic ball (7) is made of common hard and smooth plastic, and the surface of the plastic ball (7) is smoothed.

5. The long-life insulated overhead cable according to claim 1, characterized in that: The protective rotating cylinder (2) is movably connected to the plastic ring (5) via a plastic ball (7) and a limit movable groove (8).

6. A long-life insulated overhead cable according to claim 1, characterized in that: The diameter of the installation groove (6) is greater than the diameter of the insulating overhead cable body (1), and the installation groove (6) is made of common hard plastic.

7. A long-life insulated overhead cable according to claim 1, characterized in that: The smooth coating (3) is made of latex paint material.

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