Aluminum alloy conductor overhead insulated cable

Abstract

The utility model discloses an aluminum alloy conductor overhead insulated cable, which comprises a plurality of aluminum alloy conductors, insulating layers are coated outside the aluminum alloy conductors, a heat insulation layer is coated outside the insulating layers, a plurality of arc-shaped blocks are uniformly and fixedly connected outside the insulating layers, a plurality of arc-shaped grooves are uniformly arranged on the inner side wall of the heat insulation layer, and the arc-shaped grooves are communicated with the arc-shaped blocks. The multiple arc-shaped blocks are embedded into the multiple arc-shaped grooves correspondingly, the outer portion of the heat insulation layer is coated with a wear-resisting layer, the outer portion of the heat insulation layer is evenly and fixedly connected with multiple fixing blocks, the side ends of the multiple fixing blocks are fixedly connected with two reinforcing blocks, and the inner portion of the wear-resisting layer is evenly provided with multiple fixing grooves. And the multiple fixing blocks are inserted into the multiple fixing grooves correspondingly, two reinforcing grooves are formed in the side ends of the fixing grooves, the two reinforcing grooves are embedded into the two reinforcing grooves correspondingly, the stability of connection among the insulating layer, the heat insulation layer and the wear-resisting layer is improved, and the tensile effect of the cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, and more specifically, it relates to an aluminum alloy conductor overhead insulated cable. Background Art

[0002] An overhead cable (fully named overhead insulated cable) is an overhead conductor equipped with an insulating layer and a protective outer skin. It is a special cable manufactured using a production process similar to that of cross-linked cables and represents a new power transmission method between overhead conductors and underground cables.

[0003] In existing overhead cables, an insulating layer, a heat-insulating layer, and a wear-resistant layer are sequentially coated on the outside. The insulating layer, the heat-insulating layer, and the wear-resistant layer are directly coated. The outer walls of the insulating layer, the heat-insulating layer, and the wear-resistant layer are all in a flat state, and the connection stability between the insulating layer, the heat-insulating layer, and the wear-resistant layer is relatively poor. In addition, there is a lack of corresponding support structures inside the overhead cable. When the cable is placed on the ground, it is inevitable that a working vehicle will press on the cable, easily flattening and damaging the cable. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the problems existing in the prior art, the utility model provides an aluminum alloy conductor overhead insulated cable to solve the technical problem that the outer walls of the insulating layer, the heat-insulating layer, and the wear-resistant layer are all in a flat state and the connection stability between the insulating layer, the heat-insulating layer, and the wear-resistant layer is relatively poor mentioned in the background art.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the utility model provides the following technical solution: an aluminum alloy conductor overhead insulated cable, including a plurality of aluminum alloy conductors. The outside of each of the plurality of aluminum alloy conductors is coated with an insulating layer. The outside of the insulating layer is coated with a heat-insulating layer. A plurality of arc-shaped blocks are evenly and fixedly connected to the outside of the insulating layer. A plurality of arc-shaped grooves are provided on the inner side wall of the heat-insulating layer. The plurality of arc-shaped blocks are respectively embedded into the plurality of arc-shaped grooves. The outside of the heat-insulating layer is coated with a wear-resistant layer. A plurality of fixing blocks are evenly and fixedly connected to the outside of the heat-insulating layer. Two reinforcing blocks are fixedly connected to the side ends of the plurality of fixing blocks. A plurality of fixing grooves are evenly provided inside the wear-resistant layer. The plurality of fixing blocks are respectively inserted into the plurality of fixing grooves. Two reinforcing grooves are provided at the side ends of the fixing grooves. The two reinforcing grooves are respectively embedded into the two reinforcing grooves, increasing the connection stability between the insulating layer, the heat-insulating layer, and the wear-resistant layer and improving its tensile effect.

[0008] The present utility model is further configured such that a plurality of reinforcing rings are uniformly arranged on the outer sides of the plurality of aluminum alloy conductors. The plurality of reinforcing rings are all made of stainless steel. A plurality of through grooves are arranged on the reinforcing rings. The plurality of aluminum alloy conductors respectively pass through the interiors of the plurality of through grooves. Insulating ring sleeves are clamped in the interiors of the plurality of through grooves. The insulating ring sleeves are sleeved on the outer sides of the corresponding aluminum alloy conductors, thereby improving the compressive resistance effect of the cable.

[0009] The present utility model is further configured such that the insulating layer includes a plurality of insulating columns and an insulating sleeve. The plurality of insulating columns are respectively located at the middle positions of the plurality of reinforcing rings. A plurality of through grooves are arranged on the plurality of reinforcing rings. Insulating connecting columns are arranged in the interiors of the plurality of through grooves. The insulating connecting columns are fixedly connected to two adjacent insulating columns. The insulating sleeve is sleeved on the outsides of the plurality of insulating columns and the plurality of reinforcing rings, facilitating the stable connection between the plurality of reinforcing rings and the plurality of aluminum alloy conductors.

[0010] The present utility model is further configured such that the plurality of insulating columns, the insulating sleeve and the plurality of insulating connecting columns are an integrally injection-molded structure.

[0011] The present utility model is further configured such that the radian of the inner side wall of the arc-shaped block is smaller than the radian of the outer side wall, improving the stability of the connection between the insulating layer and the heat-insulating layer.

[0012] The present utility model is further configured such that a gap is arranged between the reinforcing block and the heat-insulating layer, facilitating the injection of the wear-resistant layer into the interior of the gap and improving the stability of the connection between the heat-insulating layer and the wear-resistant layer.

[0013] The present utility model is further configured such that a plurality of nylon ropes penetrate through the interiors of the plurality of reinforcing rings and the insulating layer, increasing the tensile effect of the cable.

[0014] The present utility model is further configured such that a plurality of wear-resistant blocks are uniformly and fixedly connected to the outer side of the wear-resistant layer, increasing the friction resistance effect of the wear-resistant layer and improving the stability of the overhead fixing of the cable.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the present utility model provides an aluminum alloy conductor overhead insulated cable, which has the following beneficial effects:

[0017] 1. By fixedly connecting a plurality of arc-shaped blocks to the outside of the insulating layer, and respectively embedding the plurality of arc-shaped blocks into the interiors of the plurality of arc-shaped grooves on the heat-insulating layer, the stability of the connection between the heat-insulating layer and the insulating layer is improved, preventing the relative rotation and sliding between the heat-insulating layer and the insulating layer. By respectively inserting the plurality of fixing blocks and the plurality of reinforcing blocks into the interiors of the plurality of fixing grooves and the plurality of reinforcing grooves, the stability of the connection between the heat-insulating layer and the wear-resistant layer is improved, preventing the relative rotation and sliding between the wear-resistant layer and the heat-insulating layer. Thereby, the stability of the connection between the insulating layer, the heat-insulating layer and the wear-resistant layer is increased, improving its tensile effect.

[0018] 2. Support multiple aluminum alloy conductors through multiple reinforcing rings, separate the multiple aluminum alloy conductors, and stably support the cable through the multiple reinforcing rings. When the cable is crushed, prevent the cable from being flattened and damaged.

[0019] 3. A plurality of wear-resistant blocks are uniformly and fixedly connected to the outside of the wear-resistant layer. The wear-resistant effect of the surface of the wear-resistant layer is increased through the plurality of wear-resistant blocks, preventing slipping when people pull the cable. At the same time, the cable can be easily fixed by overhead bundling through the plurality of wear-resistant blocks, improving the stability of the overhead fixing of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front structural schematic diagram of an aluminum alloy conductor overhead insulated cable in the present utility model;

[0021] Figure 2 It is a structural schematic diagram of the connection between the wear-resistant layer and the plurality of wear-resistant blocks in the present utility model;

[0022] Figure 3 It is a structural schematic diagram of the connection between the heat insulation layer, the plurality of fixing blocks and the plurality of reinforcing blocks in the present utility model;

[0023] Figure 4 It is a structural schematic diagram of the connection between the heat insulation layer and the plurality of arc-shaped blocks in the present utility model;

[0024] Figure 5 It is a structural schematic diagram of the connection between the plurality of insulating columns, the plurality of reinforcing rings and the plurality of insulating connection columns in the present utility model.

[0025] In the figure: 1. Aluminum alloy conductor; 2. Insulating layer; 3. Heat insulation layer; 4. Arc-shaped block; 5. Arc-shaped groove; 6. Wear-resistant layer; 7. Fixing block; 8. Reinforcing block; 9. Fixing groove; 10. Reinforcing groove; 11. Reinforcing ring; 12. Through groove; 13. Insulating ring sleeve; 14. Insulating column; 15. Insulating sleeve; 16. Through slot; 17. Insulating connection column; 18. Nylon rope; 19. Wear-resistant block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0028] In the present utility model, unless otherwise specified, the orientations such as "upper" and "lower" generally refer to the directions shown in the drawings, or to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left" and "right" generally refer to the left and right shown in the drawings; "inner" and "outer" refer to the inner and outer of the contours of the respective components themselves. However, the above orientation terms are not used to limit the present utility model.

[0029] Please refer to Figures 1-5 , an overhead insulated cable with an aluminum alloy conductor 1, comprising a plurality of aluminum alloy conductors 1. The outer parts of the plurality of aluminum alloy conductors 1 are all coated with an insulating layer 2, and the outer part of the insulating layer 2 is coated with a heat-insulating layer 3. A plurality of arc-shaped blocks 4 are evenly and fixedly connected to the outer part of the insulating layer 2. The radian of the inner side wall of the arc-shaped block 4 is smaller than that of the outer side wall, which improves the connection stability between the insulating layer 2 and the heat-insulating layer 3. A plurality of arc-shaped grooves 5 are arranged on the inner side wall of the heat-insulating layer 3, and the plurality of arc-shaped blocks 4 are respectively embedded into the interiors of the plurality of arc-shaped grooves 5. The outer part of the heat-insulating layer 3 is coated with a wear-resistant layer 6, and a plurality of wear-resistant blocks 19 are evenly and fixedly connected to the outer part of the wear-resistant layer 6, which increases the anti-friction effect of the wear-resistant layer 6 and improves the stability of the cable overhead fixing. A plurality of fixing blocks 7 are evenly and fixedly connected to the outer part of the heat-insulating layer 3, and two reinforcing blocks 8 are fixedly connected to the side ends of the plurality of fixing blocks 7. A plurality of fixing grooves 9 are evenly arranged inside the wear-resistant layer 6, and the plurality of fixing blocks 7 are respectively inserted into the interiors of the plurality of fixing grooves 9. Two reinforcing grooves 10 are arranged at the side ends of the fixing grooves 9, and the two reinforcing grooves 10 are respectively embedded inside the two reinforcing grooves 10. A gap is arranged between the reinforcing block 8 and the heat-insulating layer 3, which is convenient for the wear-resistant layer 6 to be injection-molded into the gap, thereby improving the connection stability between the heat-insulating layer 3 and the wear-resistant layer 6.

[0030] Specifically, by fixedly connecting a plurality of arc-shaped blocks 4 to the outer part of the insulating layer 2, and respectively embedding the plurality of arc-shaped blocks 4 into the interiors of the plurality of arc-shaped grooves 5 on the heat-insulating layer 3, the connection stability between the heat-insulating layer 3 and the insulating layer 2 is improved, and relative rotation and sliding between the heat-insulating layer 3 and the insulating layer 2 are avoided. By respectively inserting the plurality of fixing blocks 7 and the plurality of reinforcing blocks 8 into the interiors of the plurality of fixing grooves 9 and the plurality of reinforcing grooves 10, the connection stability between the heat-insulating layer 3 and the wear-resistant layer 6 is improved, and relative rotation and sliding between the wear-resistant layer 6 and the heat-insulating layer 3 are avoided, thereby increasing the connection stability between the insulating layer 2, the heat-insulating layer 3 and the wear-resistant layer 6 and improving its tensile effect. By evenly and fixedly connecting a plurality of wear-resistant blocks 19 to the outer part of the wear-resistant layer 6, the wear-resistant effect on the surface of the wear-resistant layer 6 is increased by the plurality of wear-resistant blocks 19, so as to prevent slipping when people pull the cable. At the same time, the cable can be conveniently fixed by overhead bundling through the plurality of wear-resistant blocks 19, and the stability of the cable overhead fixing is improved.

[0031] Please refer to Figure 1 and Figure 5A plurality of reinforcement rings 11 are evenly arranged on the outside of the plurality of aluminum alloy conductors 1. The plurality of reinforcement rings 11 are made of stainless steel. A plurality of through grooves 12 are arranged on the reinforcement rings 11. The plurality of aluminum alloy conductors 1 pass through the interior of the plurality of through grooves 12 respectively. The interior of the plurality of through grooves 12 is clamped with insulating sleeves 13. The insulating sleeves 13 are sleeved on the outside of the corresponding aluminum alloy conductors 1. The insulating sleeves 13 are used to improve the insulation effect between the aluminum alloy conductors 1 and the reinforcement rings 11.

[0032] Specifically, multiple aluminum alloy conductors 1 are supported by providing multiple reinforcement rings 11, so that the multiple aluminum alloy conductors 1 are separated, and the cable is stably supported by the multiple reinforcement rings 11, so that the cable is prevented from being crushed and damaged when it is rolled.

[0033] See also Figure 4 and Figure 5 The insulating layer 2 includes a plurality of insulating columns 14 and an insulating sleeve 15. The plurality of insulating columns 14 are respectively located in the middle position of the plurality of reinforcement rings 11. The plurality of reinforcement rings 11 are each provided with a plurality of through grooves 16. The interior of the plurality of through grooves 16 is provided with insulating connecting columns 17. The insulating connecting columns 17 are fixedly connected to two adjacent insulating columns 14. The insulating sleeve 15 is sleeved on the outside of the plurality of insulating columns 14 and the plurality of reinforcement rings 11. The plurality of insulating columns 14, the insulating sleeve 15 and the plurality of insulating connecting columns 17 are an integral structure formed by injection molding. A plurality of nylon ropes 18 are passed through the interior of the plurality of reinforcement rings 11 and the insulating layer 2 to increase the tensile strength of the cable.

[0034] Specifically, the multiple reinforcement rings 11 are evenly separated by the multiple insulation columns 14 , and the multiple reinforcement rings 11 are firmly connected together by the insulation sleeve 15 , the multiple insulation columns 14 and the multiple insulation connection columns 17 .

[0035] In summary, when the overall equipment is in use:

[0036] A plurality of arc-shaped blocks 4 are fixedly connected to the outside of the insulating layer 2, and are respectively embedded in the interiors of a plurality of arc-shaped grooves 5 on the heat-insulating layer 3, so as to improve the connection stability between the heat-insulating layer 3 and the insulating layer 2, and prevent the heat-insulating layer 3 and the insulating layer 2 from rotating and sliding relative to each other. A plurality of fixing blocks 7 and a plurality of reinforcing blocks 8 are respectively inserted into the interiors of a plurality of fixing grooves 9 and a plurality of reinforcing grooves 10, so as to improve the connection stability between the heat-insulating layer 3 and the wear-resistant layer 6, and prevent the wear-resistant layer 6 and the heat-insulating layer 3 from rotating and sliding relative to each other, thereby increasing the connection stability between the insulating layer 2, the heat-insulating layer 3 and the wear-resistant layer 6, and improving its tensile resistance effect. A plurality of wear-resistant blocks 19 are uniformly fixedly connected to the outside of the wear-resistant layer 6, and the wear-resistant effect of the surface of the wear-resistant layer 6 is increased by the plurality of wear-resistant blocks 19, so as to prevent slipping when people pull the cable. At the same time, the cable can be fixed by overhead bundling through the plurality of wear-resistant blocks 19, and the stability of the overhead fixing of the cable is improved. When a plurality of reinforcing rings 11 are provided, a plurality of aluminum alloy conductors 1 are supported, and the plurality of aluminum alloy conductors 1 are separated from each other. The cable is stably supported by the plurality of reinforcing rings 11. When the cable is crushed, the cable is prevented from being flattened and damaged.

[0037] In all the above-mentioned solutions, for the connection between two components, welding, connection with bolts and nuts, connection with bolts or screws, or other well-known connection methods can be selected according to the actual situation, which will not be elaborated one by one here. For all the above cases where fixed connection is mentioned, welding is preferably considered. Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An overhead insulated cable with an aluminum alloy conductor, comprising a plurality of aluminum alloy conductors (1), characterized in that: The outsides of multiple said aluminum alloy conductors (1) are all coated with an insulating layer (2), the outside of the insulating layer (2) is coated with a heat insulation layer (3), a plurality of arc-shaped blocks (4) are uniformly and fixedly connected to the outside of the insulating layer (2), a plurality of arc-shaped grooves (5) are provided on the inner side wall of the heat insulation layer (3), and the plurality of arc-shaped blocks (4) are respectively embedded into the interiors of the plurality of arc-shaped grooves (5). The outside of the heat insulation layer (3) is coated with a wear-resistant layer (6), a plurality of fixing blocks (7) are uniformly and fixedly connected to the outside of the heat insulation layer (3), two reinforcing blocks (8) are fixedly connected to the side ends of the plurality of fixing blocks (7), a plurality of fixing grooves (9) are uniformly provided inside the wear-resistant layer (6), and the plurality of fixing blocks (7) are respectively inserted into the interiors of the plurality of fixing grooves (9). Two reinforcing grooves (10) are provided at the side ends of the fixing grooves (9), and the two reinforcing grooves (10) are respectively embedded inside the two reinforcing grooves (10).

2. The aluminum alloy conductor overhead insulated cable according to claim 1, characterized in that: A plurality of reinforcing rings (11) are uniformly provided on the outsides of the plurality of aluminum alloy conductors (1). The plurality of reinforcing rings (11) are all made of stainless steel. A plurality of through grooves (12) are provided on the reinforcing rings (11), and the plurality of aluminum alloy conductors (1) respectively pass through the interiors of the plurality of through grooves (12). An insulating ring sleeve (13) is clamped inside each of the plurality of through grooves (12), and the insulating ring sleeve (13) is sleeved on the outside of the corresponding aluminum alloy conductor (1).

3. The aluminum alloy conductor overhead insulated cable according to claim 2, wherein: The insulating layer (2) includes a plurality of insulating columns (14) and an insulating sleeve (15). The plurality of insulating columns (14) are respectively located at the middle positions of the plurality of reinforcing rings (11). A plurality of through slots (16) are provided on the plurality of reinforcing rings (11), an insulating connecting column (17) is provided inside the plurality of through slots (16), and the insulating connecting column (17) is fixedly connected to two adjacent insulating columns (14). The insulating sleeve (15) is sleeved on the outsides of the plurality of insulating columns (14) and the plurality of reinforcing rings (11).

4. The aluminum alloy conductor overhead insulated cable according to claim 3, characterized in that: The plurality of insulating columns (14), the insulating sleeve (15) and the plurality of insulating connecting columns (17) are an integrally injection-molded structure.

5. The overhead insulated aluminum alloy conductor cable according to claim 1, characterized in that: The radian of the inner side wall of the arc-shaped block (4) is smaller than the radian of the outer side wall.

6. An overhead insulated aluminum alloy conductor cable according to claim 1, characterized in that: A gap is provided between the reinforcing block (8) and the heat insulation layer (3).

7. The aluminum alloy conductor overhead insulated cable according to claim 2, wherein: A plurality of nylon ropes (18) are passed through the plurality of reinforcing rings (11) and the insulating layer (2).

8. The aluminum alloy conductor overhead insulated cable according to claim 1, characterized in that: A plurality of wear-resistant blocks (19) are uniformly and fixedly connected to the outside of the wear-resistant layer (6).

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