Heatproof fireproof overhead stranded wire

Abstract

The utility model belongs to the technical field of overhead stranded wires, and particularly relates to a heatproof fireproof overhead stranded wire, which comprises a stranded wire main body. The outer wall of the stranded wire main body is fixedly connected with an insulating layer; a first clamping plate is arranged on the outer wall of the insulating layer; a second clamping plate is arranged at the end of the first clamping plate, and the first clamping plate and the second clamping plate are symmetrically arranged. The outer wall of the first clamping plate and the outer wall of the second clamping plate are fixedly connected with heat insulation plates. A plurality of groups of fixing rods are fixedly connected to the inner wall of the first clamping plate; the outer wall of the fixing rod is fixedly connected with fixing rubber. Fixing rubber is arranged in the middle of a first clamping plate in a matched mode, the first clamping plate and a second clamping plate can be conveniently installed or detached subsequently, and the problem that an original insulating layer is directly exposed to the outside, consequently, the surface of the insulating layer is directly irradiated by the sun, and the insulating layer is prone to aging is solved; the heat can be further blocked, and the problem of spontaneous combustion of the insulating layer is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of overhead stranded wire technology, specifically a heat-resistant and fireproof overhead stranded wire. Background Technology

[0002] Stranded wire is composed of multiple thin metal wires spirally wound together, usually twisted in layers around a center wire. Common types include copper stranded wire, aluminum stranded wire, and copper-clad aluminum stranded wire, etc.

[0003] Overhead stranded wire is a multi-strand stranded conductor used for overhead laying of high-voltage transmission lines, distribution lines, and electrified railway contact networks. It has high mechanical strength and conductivity and is suitable for long-distance, large-span power transmission.

[0004] Through long-term observation, it has been found that when existing stranded wires are used, the outer insulation layer is exposed to direct sunlight for a long time. The heat generated by the sun accelerates the oxidation of the insulation layer, causing it to age and affecting its service life. Therefore, a heat-resistant and fireproof overhead stranded wire is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve at least one of the technical problems mentioned in the background technology, this utility model proposes a heat-resistant and fireproof overhead stranded wire.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The heat-resistant and fireproof overhead stranded wire of this utility model includes a stranded wire body; an insulation layer is fixedly connected to the outer wall of the stranded wire body; a first clamping plate is provided on the outer wall of the insulation layer; a second clamping plate is provided at the end of the first clamping plate, and the first clamping plate and the second clamping plate are symmetrically arranged; a heat insulation plate is fixedly connected to the outer wall of the first clamping plate and the second clamping plate; multiple sets of fixing rods are fixedly connected to the inner wall of the first clamping plate; a fixing rubber is fixedly connected to the outer wall of the fixing rod; an inner groove is opened in the middle of the second clamping plate, and the inner groove and the fixing rubber are matched in shape.

[0007] Preferably, the first card plate has two sets of rotating shafts rotatably connected to its end; a rotating plate is fixedly connected to the middle of the rotating shaft; and the second card plate has a card slot at its end, and the card slot and the rotating plate are shaped to match each other.

[0008] Preferably, two sets of shielding plates are fixedly connected to the top of one set of heat insulation plates; multiple sets of elastic rods are fixedly connected to the top of the shielding plates, and the elastic rods are arranged in an arc shape; a top ball is fixedly connected to the end of the elastic rod.

[0009] Preferably, a rubber plate is fixedly connected to the inner wall of the first and second card plates; a brush plate is fixedly connected to the side wall of the rubber plate.

[0010] Preferably, a guide groove is provided in the middle of the inner groove.

[0011] Preferably, a friction element is fixedly connected to the end of the top ball.

[0012] The beneficial effects of this utility model are:

[0013] This utility model provides a heat-resistant and fireproof overhead stranded wire. By using a fixing rubber in the middle of the first card plate, it is easy to install or disassemble the first card plate and the second card plate. This reduces the direct exposure of the original insulation layer to the outside world, which would cause the insulation layer to age easily due to direct sunlight. At the same time, the heat insulation plate can further block heat and prevent the insulation layer from spontaneously combusting.

[0014] This utility model provides a heat-resistant and fireproof overhead stranded cable. By rotating the shaft, the stability of fixing the first and second clamping plates can be further improved, reducing the problem of the first and second clamping plates spreading outwards at both ends, which would require frequent reinforcement by workers. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the second card plate structure in this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A;

[0019] Figure 4 This is a schematic diagram of the first card plate structure in this utility model;

[0020] Figure 5 This is a schematic diagram of the shielding plate structure in this utility model.

[0021] Legend:

[0022] 1. Stranded wire body; 11. Insulation layer; 12. First clamping plate; 13. Second clamping plate; 14. Heat insulation plate; 15. Fixing rod; 16. Fixing rubber; 17. Inner groove; 2. Rotating shaft; 21. Rotating plate; 22. Slot; 3. Baffle plate; 31. Elastic rod; 32. Top ball; 4. Rubber plate; 41. Brush plate; 5. Guide groove; 6. Friction component. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1-5 As shown, a heat-resistant and fireproof overhead stranded wire includes a stranded wire body 1; an insulation layer 11 is fixedly connected to the outer wall of the stranded wire body 1; a first clamping plate 12 is provided on the outer wall of the insulation layer 11; a second clamping plate 13 is provided at the end of the first clamping plate 12, and the first clamping plate 12 and the second clamping plate 13 are symmetrically arranged; a heat insulation plate 14 is fixedly connected to the outer wall of the first clamping plate 12 and the second clamping plate 13; multiple sets of fixing rods 15 are fixedly connected to the inner wall of the first clamping plate 12; fixing rubber 16 is fixedly connected to the outer wall of the fixing rods 15; an inner groove 17 is opened in the middle of the second clamping plate 13, and the inner groove 17 and the fixing rubber 16 are shaped to match; during operation, after the operator has installed the stranded wire body 1, the ends of the first clamping plate 12 and the second clamping plate 13 can be aligned, and the stranded wire body 1 and the insulation layer 11 can be stored in the first clamping plate 12 and the second clamping plate 13. The first and second plates 12 are pressed firmly against the inner wall of the second plate 13 until the multiple sets of fixing rubbers 16 are aligned with the inner groove 17. The fixing rubbers 16 are then pressed through the inner wall of the inner groove 17 and make deep contact with the inner wall of the inner groove 17, thus protecting the insulation layer 11 and the first plate 12. The heat insulation plate 14 can isolate external heat. This step, combined with the fixing rubbers 16 in the middle of the first plate 12, makes it easy to install or remove the first plate 12 and the second plate 13 later. This reduces the direct exposure of the original insulation layer 11 to the outside world, which would cause the insulation layer 11 to age easily due to direct sunlight. At the same time, the heat insulation plate 14 can further block heat and prevent the insulation layer 11 from spontaneously combusting.

[0026] like Figures 1-5As shown, two sets of rotating shafts 2 are rotatably connected to the end of the first card plate 12; a rotating plate 21 is fixedly connected to the middle of the rotating shaft 2; a slot 22 is opened at the end of the second card plate 13, and the slot 22 and the rotating plate 21 are shaped to match each other; during operation, by setting two sets of rotating shafts 2 at the end of the first card plate 12, and after the first card plate 12 and the second card plate 13 are closed, the operator can hold the two sets of rotating shafts 2 in turn and rotate the position of the rotating shafts 2 until the rotating plate 21 in the middle of the rotating shaft 2 is inserted into the inner wall of the slot 22. This step, under the action of rotating the rotating shaft 2, can further improve the stability of fixing the first card plate 12 and the second card plate 13, and reduce the problem that the two ends of the first card plate 12 and the second card plate 13 will unfold outward, so that the operator needs to frequently reinforce them.

[0027] like Figures 1-5 As shown, two sets of baffles 3 are fixedly connected to the top of the heat insulation plate 14; multiple sets of elastic rods 31 are fixedly connected to the top of the baffles 3, and the elastic rods 31 are arranged in an arc shape; a top ball 32 is fixedly connected to the end of the elastic rod 31; during operation, by fixing the baffles 3 to the top of the heat insulation plate 14, the gap between the first clamping plate 12 and the second clamping plate 13 is blocked. After the first clamping plate 12 and the second clamping plate 13 are closed, under the action of the elastic rods 31, the top ball 32 can press the end of the baffles 3, so that the baffles 3 are in close contact with the designated area of ​​the heat insulation plate 14. This step can improve the sealing of the first clamping plate 12 and the second clamping plate 13 when the baffles 3 are opened, and at the same time protect the edge area of ​​the heat insulation plate 14, reducing the problem of edge warping after long-term use of the heat insulation plate 14. The elastic rods 31 and the top ball 32 can improve the stability of the baffles 3 during use.

[0028] like Figures 1-5 As shown, a rubber plate 4 is fixedly connected to the inner wall of the first card plate 12 and the second card plate 13; a brush 41 is fixedly connected to the side wall of the rubber plate 4. During operation, by providing the rubber plate 4 on the inner wall of the first card plate 12 and the second card plate 13, when the first card plate 12 and the second card plate 13 are placed on the insulating layer 11, the protruding brush 41 can first wipe the designated area of ​​the insulating layer 11, and make the rubber plate 4 contact the insulating layer 11. This step, under the action of the brush 41, can improve the stability of the first card plate 12 and the second card plate 13 when they are placed, and avoid the problem of the first card plate 12 and the second card plate 13 frequently shaking on the insulating layer 11 due to the influence of external wind force during use. With the brush 41, a part of the insulating layer 11 can be wiped.

[0029] like Figures 1-5As shown, a guide groove 5 is provided in the middle of the inner groove 17. During operation, the guide groove 5 is provided on the inner wall of the inner groove 17. When the fixing rubber 16 is inserted into the inner wall of the inner groove 17, it can first contact the arc-shaped guide groove 5. This step can guide the fixing rubber 16 under the action of the guide groove 5, thereby improving the convenience of fixing the first clamping plate 12 and the second clamping plate 13.

[0030] like Figures 1-5 As shown, a friction element 6 is fixedly connected to the end of the top ball 32. During operation, when the top ball 32 is close to the baffle plate 3, the friction element 6 on its surface can make contact with the baffle plate 3 first. Under the action of the friction element 6, this step can further improve the stability of the contact between the top ball 32 and the baffle plate 3 and reduce the wear on the outer wall of the baffle plate 3.

[0031] Working principle: After the stranded wire body 1 is installed, the ends of the first clamping plate 12 and the second clamping plate 13 are aligned, and the stranded wire body 1 and the insulation layer 11 are placed inside the inner walls of the first clamping plate 12 and the second clamping plate 13 until the multiple sets of fixing rubbers 16 are aligned with the inner groove 17. Then, the first clamping plate 12 and the second clamping plate 13 are pressed firmly so that the fixing rubbers 16 completely pass through the inner wall of the inner groove 17 and make deep contact with the inner wall of the inner groove 17, thereby protecting the insulation layer 11 and the first clamping plate 12. The heat insulation plate 14 can isolate external heat. Two sets of rotating shafts 2 are set at the end of the first clamping plate 12. After the first clamping plate 12 and the second clamping plate 13 are closed, the operator can hold the two sets of rotating shafts 2 in turn and rotate the position of the rotating shafts 2 until the rotating plate 21 in the middle of the rotating shaft 2 is inserted into the inner wall of the clamping groove 22. A baffle plate 3 is fixed to the top of the hot plate 14, which blocks the gap between the first plate 12 and the second plate 13. After the first plate 12 and the second plate 13 are closed, the baffle plate 3 can be pressed by the top ball 32 under the action of the elastic rod 31, so that the baffle plate 3 is in close contact with the designated area of ​​the heat insulation plate 14. A rubber plate 4 is provided on the inner wall of the first plate 12 and the second plate 13. When the first plate 12 and the second plate 13 are put on the insulation layer 11, the protruding brush 41 can wipe the insulation layer 11 in the designated area first, so that the rubber plate 4 can contact the insulation layer 11. A guide groove 5 is provided on the inner wall of the inner groove 17. When the fixing rubber 16 is inserted into the inner wall of the inner groove 17, it can contact the arc-shaped guide groove 5 first. When the top ball 32 is close to the baffle plate 3, the friction part 6 on its surface can contact the baffle plate 3 first.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A heat-resistant fireproof aerial cable, comprising a cable body (1); an insulation layer (11) is fixed to the outer wall of the cable body (1); characterized in that: The outer wall of the insulation layer (11) is provided with a first clamping plate (12); the end of the first clamping plate (12) is provided with a second clamping plate (13), and the first clamping plate (12) and the second clamping plate (13) are symmetrically arranged; the outer wall of the first clamping plate (12) and the second clamping plate (13) is fixedly connected with a heat insulation plate (14); the inner wall of the first clamping plate (12) is fixedly connected with a plurality of groups of fixing rods (15); the outer wall of the fixing rod (15) is fixedly connected with a fixing rubber (16); the middle of the second clamping plate (13) is provided with an inner groove (17), and the inner groove (17) and the fixing rubber (16) are matched in shape.

2. A fire resistant aerial bundle according to claim 1, characterised in that: The end of the first clamping plate (12) is rotatably connected with two groups of rotating shafts (2); the middle of the rotating shaft (2) is fixedly connected with a rotating plate (21); the end of the second clamping plate (13) is provided with a clamping groove (22), and the clamping groove (22) and the rotating plate (21) are matched in shape.

3. A fire resistant aerial bundle according to claim 1, wherein: The top of one group of the heat insulation plates (14) is fixedly connected with two groups of shielding plates (3); the top of the shielding plate (3) is fixedly connected with a plurality of groups of elastic rods (31), and the elastic rod (31) is arranged in a circular arc shape; the end of the elastic rod (31) is fixedly connected with a top ball (32).

4. A fire resistant aerial bundle according to claim 1, wherein: The inner wall of the first clamping plate (12) and the second clamping plate (13) is fixedly connected with a rubber plate (4); the side wall of the rubber plate (4) is fixedly connected with a brush piece (41).

5. A fire resistant aerial bundle according to claim 1, wherein: The middle of the inner groove (17) is provided with a guide groove (5).

6. A fire resistant aerial bundle according to claim 3, wherein: The end of the top ball (32) is fixedly connected with a friction piece (6).

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