An aluminum core cross-linked polyethylene insulated overhead cable

Abstract

This utility model relates to the field of power transmission technology, specifically to an aluminum core cross-linked polyethylene insulated overhead cable, comprising four cable cores, a fixing structure, a protective layer, several raised rings, and a positioning component. The four cable cores are arranged in a ring, the fixing structure covers the outside of the four cable cores, the protective layer covers the outside of the fixing structure, the raised rings are fixedly connected to the protective layer, and the positioning component is located outside the raised rings. The positioning component includes two fixing rings, a connecting block, and two fixing blocks. The two fixing rings respectively cover the outside of the corresponding raised rings, the two ends of the connecting block are rotatably connected to the two fixing blocks respectively, and the two fixing blocks are fixedly connected to the corresponding fixing blocks respectively. The two fixing blocks are bolted together. Through the above structural design, the problem of unstable installation of the insulation wear-resistant layer and easy slippage of the cable during hoisting in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of power transmission technology, and in particular to an aluminum core cross-linked polyethylene insulated overhead cable. Background Technology

[0002] As an important component of power transmission and communication networks, overhead cables enable the long-distance transmission of electrical energy or signals by being suspended in the air.

[0003] In the prior art, patent document with publication number (CN212380185U) mentions an aluminum core cross-linked polyethylene insulated overhead cable, comprising several conductive cores, at least two of which are coated with a modified layer. Each conductive core is evenly distributed within a shaped insulation layer, and a reinforcing wire is positioned at the center of this layer. A flame-retardant layer, an armor layer, and an insulating wear-resistant layer are sequentially coated around the shaped insulation layer. A low-temperature resistant layer is positioned between the armor layer and the insulating wear-resistant layer. This prior art avoids short circuits caused by the crossing of multiple insulated cable strands; it acts as a buffer for the leakage-proof safety insulated cable; the flame-retardant layer increases the cable's fire resistance; the armor layer and reinforcing wire enhance the cable's strength; and it also provides low-temperature resistance, enabling use in low-temperature environments and significantly extending its service life.

[0004] However, with the aforementioned existing technology, the insulating and wear-resistant layer is difficult to install stably during hoisting, and the cable is prone to slippage. Utility Model Content

[0005] The purpose of this utility model is to provide an aluminum core cross-linked polyethylene insulated overhead cable, which solves the problem that the insulation wear-resistant layer is difficult to install stably during hoisting and the cable is prone to slippage in the existing technology.

[0006] To achieve the above objectives, this utility model provides an aluminum core cross-linked polyethylene insulated overhead cable, comprising four cable cores, a fixing structure, a protective layer, several raised rings, and a positioning component. The four cable cores are arranged in a ring. The fixing structure covers the outside of the four cable cores. The protective layer covers the outside of the fixing structure. The raised rings are fixedly connected to the protective structure and are evenly distributed on the surface of the protective layer. The edge of the protective layer is arc-shaped. The positioning component is disposed outside the raised rings. The positioning component includes two fixing rings, a connecting block, and two fixing blocks. The two fixing rings respectively cover the outside of the corresponding raised rings and are respectively disposed on both sides of the raised rings. The two ends of the connecting block are rotatably connected to the two fixing blocks and are located below the two fixing blocks. The two fixing blocks are fixedly connected to the corresponding fixing blocks and are located above the fixing blocks. The two fixing blocks are bolted together.

[0007] The positioning component further includes a mounting block, which is fixedly connected to the corresponding fixing block and located above the fixing block.

[0008] The fixing structure includes four insulating layers, a filling layer, and a fixing layer. The four insulating layers are respectively covered on the surface of the corresponding cable cores. The fixing layer is covered on the outside of the four cable cores. The filling layer is disposed inside the fixing layer and located on the outside of the four insulating layers.

[0009] The aluminum core cross-linked polyethylene insulated overhead cable also includes a central shaft, which is disposed inside the fixing layer and located at the center of the fixing layer.

[0010] The aluminum core cross-linked polyethylene insulated overhead cable further includes a heat-conducting strip, a water-blocking layer, and an armor layer. The heat-conducting strip covers the outside of the fixing layer and is arranged in a spiral shape. The water-blocking layer covers the outside of the heat-conducting strip, and the armor layer covers the outside of the water-blocking layer.

[0011] This utility model discloses an aluminum core cross-linked polyethylene insulated overhead cable. A fixing structure covers the outside of four cable cores, and a protective layer covers the outside of the fixing structure. Several raised rings are fixedly connected to the protective layer and evenly distributed on its surface. The protective layer has an arc-shaped edge. A positioning component is located outside the raised rings. Two fixing rings cover the outside of corresponding raised rings and are located on opposite sides of each raised ring. Two connecting blocks are rotatably connected to two fixing blocks and positioned below them. Two fixing blocks are fixedly connected to their corresponding fixing blocks and positioned above them. The two fixing blocks are bolted together. The protective layer is made of polyethylene. The raised rings are designed for easy handling and installation. The two fixing rings cover the outside of the raised rings and are adapted to them. The two fixing blocks are fixed with bolts. The raised rings are secured inside the fixing rings, effectively preventing the protective layer from sliding and improving stability. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1This is a schematic diagram of the structure of the aluminum core cross-linked polyethylene insulated overhead cable of this utility model.

[0014] Figure 2 This is a front view of the aluminum core cross-linked polyethylene insulated overhead cable of this utility model.

[0015] Figure 3 This is the utility model Figure 2 A sectional view along line AA.

[0016] Figure 4 This is the utility model Figure 3 A schematic diagram of the structure at point B.

[0017] 1-Cable core, 2-Protective layer, 3-Raised ring, 4-Central shaft, 5-Heat-conducting strip, 6-Water-blocking layer, 7-Armor layer, 8-Fixing ring, 9-Connecting block, 10-Mounting block, 11-Fixing block, 12-Insulation layer, 13-Filling layer, 14-Fixing layer. Detailed Implementation

[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0019] Please see Figures 1-4 ,in, Figure 1 This is a schematic diagram of the structure of the aluminum core cross-linked polyethylene insulated overhead cable of this utility model. Figure 2 This is a front view of the aluminum core cross-linked polyethylene insulated overhead cable of this utility model. Figure 3 This is the utility model Figure 2 AA-line sectional view, Figure 4 This is the utility model Figure 3 A schematic diagram of the structure at point B.

[0020] This utility model provides an aluminum core cross-linked polyethylene insulated overhead cable, including four cable cores 1, a fixing structure, a protective layer 2, several raised rings 3, a positioning component, a central shaft 4, a heat-conducting strip 5, a water-blocking layer 6, and an armor layer 7. The positioning component includes two fixing rings 8, a connecting block 9, an installation block 10, and two fixing blocks 11. The fixing structure includes four insulation layers 12, a filling layer 13, and a fixing layer 14. The aforementioned solution solves the problem in the prior art that the insulating wear-resistant layer is difficult to install stably during hoisting, and the cable is prone to slippage.

[0021] In this specific embodiment, the four cable cores 1 are arranged in a ring. A plurality of fixing structures cover the outer sides of the four cable cores 1. The protective layer 2 covers the outer sides of the fixing structures. A plurality of raised rings 3 are fixedly connected to the protective structure and are evenly distributed on the surface of the protective layer 2. The edges of the protective layer 2 are arc-shaped. The positioning component is disposed on the outer side of the raised ring 3. Two fixing rings 8 respectively cover the outer side of the corresponding raised ring 3 and are respectively disposed on both sides of the raised ring 3. The two ends of the connecting block 9 are rotatably connected to the two fixing blocks 11 respectively. The protective layer 2 is located below the two fixed blocks 11, and the two fixed blocks 11 are respectively fixedly connected to the corresponding fixed blocks 11 and located above the fixed blocks 11. The two fixed blocks 11 are bolted together. The material of the protective layer 2 is polyethylene. The protruding ring 3 is designed for easy handling and installation. The two fixed rings 8 cover the outside of the protruding ring 3. The fixed ring 8 is adapted to the protruding ring 3. The two fixed blocks 11 are fixed by bolts. The protruding ring 3 is set inside the fixed ring 8, which can effectively prevent the protective layer 2 from sliding and improve stability.

[0022] The mounting block 10 is fixedly connected to the corresponding fixing block 11 and is located above the fixing block 11. The mounting block 10 facilitates the hoisting of the cable core 1 and improves its practicality.

[0023] Secondly, the four insulation layers 12 are respectively covered on the surface of the corresponding cable core 1, the fixing layer 14 is covered on the outside of the four cable cores 1, the filling layer 13 is disposed inside the fixing layer 14 and located on the outside of the four insulation layers 12, the insulation layer 12 is made of cross-linked polyethylene material, and by adding antioxidants and ultraviolet absorbers, the weather resistance is enhanced and the four cable cores 1 are separated.

[0024] Secondly, the central shaft 4 is disposed inside the fixing layer 14 and located at the center of the fixing layer 14. The placement of the central shaft 4 improves stability and can effectively ensure the shape and strength of the cable core 1.

[0025] In addition, the heat-conducting strip 5 covers the outside of the fixing layer 14, the heat-conducting strip 5 is arranged in a spiral shape, the water-blocking layer 6 covers the outside of the heat-conducting strip 5, the armor layer 7 covers the outside of the water-blocking layer 6, the heat-conducting strip 5 accelerates heat dissipation, and the armor layer 7 has a wire mesh inside to improve the protective effect.

[0026] When using this utility model, the material of the protective layer 2 is polyethylene, the raised ring 3 is designed for easy handling and installation, the two fixing rings 8 are wrapped around the outside of the raised ring 3, the fixing rings 8 are adapted to the raised ring 3, the two fixing blocks 11 are fixed by bolts, the raised ring 3 is set inside the fixing ring 8, which can effectively prevent the protective layer 2 from sliding, and the mounting block 10 is designed to facilitate the hoisting of the cable core 1.

[0027] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. An aluminum-core cross-linked polyethylene insulated overhead cable, comprising four cable cores arranged in a ring, characterized in that, It also includes a fixing structure, a protective layer, several raised rings and a positioning component. Several of the fixing structures cover the outside of the four cable cores. The protective layer covers the outside of the fixing structure. Several of the raised rings are fixedly connected to the protective layer and are evenly distributed on the surface of the protective layer. The edge of the protective layer is arc-shaped. The positioning component is located on the outside of the raised rings. The positioning assembly includes two fixing rings, a connecting block, and two fixing blocks. The two fixing rings respectively cover the outer side of the corresponding protruding ring and are respectively disposed on both sides of the protruding ring. The two ends of the connecting block are rotatably connected to the two fixing blocks and are located below the two fixing blocks. The two fixing blocks are respectively fixedly connected to the corresponding fixing blocks and are located above the fixing blocks. The two fixing blocks are bolted together.

2. The aluminum core cross-linked polyethylene insulated overhead cable as described in claim 1, characterized in that, The positioning component also includes a mounting block, which is fixedly connected to the corresponding fixing block and located above the fixing block.

3. The aluminum core cross-linked polyethylene insulated overhead cable as described in claim 2, characterized in that, The fixing structure includes four insulating layers, a filling layer, and a fixing layer. The four insulating layers are respectively covered on the surface of the corresponding cable cores. The fixing layer is covered on the outside of the four cable cores. The filling layer is disposed inside the fixing layer and located on the outside of the four insulating layers.

4. The aluminum core cross-linked polyethylene insulated overhead cable as described in claim 3, characterized in that, The aluminum core cross-linked polyethylene insulated overhead cable also includes a central shaft, which is disposed inside the fixing layer and located at the center of the fixing layer.

5. The aluminum core cross-linked polyethylene insulated overhead cable as described in claim 4, characterized in that, The aluminum core cross-linked polyethylene insulated overhead cable also includes a heat-conducting strip, a water-blocking layer, and an armor layer. The heat-conducting strip covers the outside of the fixing layer and is arranged in a spiral shape. The water-blocking layer covers the outside of the heat-conducting strip, and the armor layer covers the outside of the water-blocking layer.

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