A power distribution network high voltage cable de-icing device

Abstract

The present application relates to the technical fields of high-voltage cable, in particular to a power distribution network high-voltage cable deicing device, which comprises a base, the upper end of the base is connected with an arc-shaped positioning block fixedly installed, two arc-shaped positioning blocks are fixedly installed with heating plates symmetrically arranged, the outer end surface of the two arc-shaped positioning blocks is rotatably installed with arc-shaped drive plates, the arc-shaped positioning block and the arc-shaped drive plate are arranged as superior arcs, the two heating plates are arranged as inferior arcs, the spacing between the two heating plates matches the spacing between the arc-shaped positioning block and the arc-shaped drive plate, the first motor output shaft is connected with the arc-shaped drive plate, the second motor output shaft is connected with the driven roller, the inside and the upper surface of the base are fixedly installed with a processor and a temperature sensor respectively. The present application can be installed and disassembled on the periphery of cables with various diameters, and the effect of deicing the cables can be achieved.

Description

Technical Field

[0001] This invention relates to the field of high-voltage cable technology, specifically to a de-icing device for high-voltage cables in power distribution networks. Background Technology

[0002] When transmitting power from a distribution network over long distances via high-voltage cables, the cables are located outdoors. This means that snow and rain can cover the cable surface. If the ambient temperature is below freezing, the snow and rain will form an ice layer on the cable surface. This ice layer surrounding the cable will undoubtedly cause problems such as increased cable weight, structural deformation, reduced insulation performance, and altered conductive paths. This obviously poses a great safety hazard. Therefore, it is necessary to use de-icing devices to remove the ice layer from the cable surface.

[0003] Existing de-icing devices, in order to facilitate movement around the cable perimeter, have multiple rollers and other structures inside. The contact effect between the rollers and the cable perimeter facilitates the movement of the de-icing device. However, to ensure stability, the rollers inside existing de-icing devices are mostly fixed in position. This means that when the cable perimeter diameter changes, these de-icing devices with fixed roller positions can no longer be installed around the cable perimeter, which undoubtedly limits the performance of the device. To address this, we propose a de-icing device for high-voltage cables in power distribution networks. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a de-icing device for high-voltage cables in power distribution networks.

[0005] This invention adopts the following technical solution: a de-icing device for high-voltage cables in a power distribution network, comprising a base and two symmetrically arranged heating plates. Arc-shaped positioning blocks are welded to the outer walls of both sides of the base. The two heating plates are welded between the two arc-shaped positioning blocks. Arc-shaped driving plates are rotatably mounted on the side walls of the two arc-shaped positioning blocks that are far apart from each other. Each arc-shaped positioning block has a first slot, and each arc-shaped driving plate has a second slot. The two heating plates are respectively located on both sides of the first slot. Each arc-shaped positioning block has a recessed cavity. Four movable blocks are slidably mounted on the inner wall of the recessed cavity and are circumferentially distributed at equal intervals around the first slot. Each of the movable blocks has a driven roller rotatably mounted on one side of its outer wall. Four limiting grooves arranged in a circular array are formed at equal angles within the cavity. Each movable block has a limiting slider bolted to one side. The four limiting sliders correspond one-to-one with the four limiting grooves, and each corresponding limiting slider and groove are connected by a sliding connection. Two of the movable blocks have driving sliders bolted to one side of their outer walls. The arc-shaped driving plate has two driving grooves, each corresponding to one of the two driving sliders. Each driving slider is slidably mounted within its corresponding driving groove, and both driving grooves are inclined.

[0006] As a further description of the above technical solution: a transmission mechanism is provided between two adjacent movable blocks, wherein no transmission mechanism is provided between two adjacent movable blocks. The transmission mechanism includes a limiting sleeve and two limiting rods, two driving rods, two movable rods, a driving sleeve and a limiting slide. The limiting sleeve is sleeved around the two limiting rods, and the two limiting rods are respectively welded to the surfaces of their two adjacent movable blocks.

[0007] As a further description of the above technical solution: each of the movable blocks has a drive roller rotatably mounted on one side of its outer wall, and the drive roller and the driven roller are respectively located on opposite side walls of the corresponding movable block. The driven roller and the drive roller at the same movable block are surrounded by a first transmission belt.

[0008] As a further description of the above technical solution: one side of the outer wall of each of the driving rods is bolted to a nearby active roller shaft, the two movable rods are rotatably connected to the driving rods through universal joints, the driving sleeve is inserted and installed around the two driving rods, the limiting slide is rotatably installed around the driving sleeve, and the limiting slide is slidably connected to the inner wall of the cavity.

[0009] As a further description of the above technical solution: a transfer roller and a worm gear are rotatably installed in the cavity, a groove is provided on the inner wall of the bottom of each cavity, the worm gear is rotatably installed in the groove, a second transmission belt is sleeved around the transfer roller and the worm gear, and a third transmission belt is sleeved around the transfer roller and the drive sleeve.

[0010] As a further description of the above technical solution: a tensioning mechanism is provided on one side of the outer wall of each cavity, and the tensioning mechanism is located on the inner side of the transmission of the third transmission belt. The tensioning mechanism includes two ear plates, a movable ring, a limiting rotating seat, two connecting seats and two tensioning wheels. The two ear plates are welded to the inner wall of the corresponding cavity. The limiting rotating seat is fixed between the two ear plates. The movable ring is rotatably installed on the periphery of the limiting rotating seat. The two connecting seats are integrally formed on the outer sides of the movable ring. A tensioning wheel is rotatably installed on the outer wall of each connecting seat. The inner side of the third transmission belt is in contact with the two tensioning wheels and can drive them to rotate.

[0011] As a further description of the above technical solution: two positioning blocks are integrally formed on the outer side of the limiting rotating seat, two movable sliders are fixedly installed inside the movable ring, and the positioning blocks and movable sliders are distributed alternately in pairs, and a spring is fixedly installed between each positioning block and its adjacent movable slider.

[0012] As a further description of the above technical solution: each of the movable blocks is provided with a centrifugal vibration mechanism, the centrifugal vibration mechanism including an eccentric hammer, a first annular cavity, a second annular cavity, a driving shaft, a driven shaft, and a fourth transmission belt. The first annular cavity is opened in the driven roller, the driven shaft is fixedly installed in the middle of the first annular cavity, the eccentric hammer is located on the periphery of the driven shaft, and the eccentric hammer and the driven shaft are integrally formed. The second annular cavity is opened in the driving roller, the driving shaft is fixedly installed in the middle of the second annular cavity, and the fourth transmission belt is sleeved on the periphery of the driving shaft and the driven shaft.

[0013] As a further description of the above technical solution: a processor and a temperature sensor are fixedly installed inside and on the upper surface of the base, respectively. The processor is used to process and transmit the temperature sensor information. Two cavities are opened inside the base, and a first motor and a second motor are bolted to the two cavities, respectively. Drive gears that mesh with the periphery of two arc-shaped drive plates are rotatably installed on both sides of the base. The first motor is fixedly connected to the middle of the two drive gears through its output shafts on both sides. The second motor is connected to two worm gears integrally formed therewith through its output shafts on both sides. The worm gears are slidably connected to the periphery of the worm wheel, and the worm gears are rotatably installed in the groove.

[0014] This invention provides an improved de-icing device for high-voltage cables in power distribution networks, which has the following improvements and advantages compared with the prior art:

[0015] Firstly, this invention utilizes the sliding cooperation between the movable block, the arc-shaped positioning block, and the arc-shaped drive plate to allow the rotating arc-shaped drive plate to drive each movable block to contract or expand, thereby ensuring that each driven roller is in contact with the outer periphery of the cable and that the device can move around the outer periphery of the cable.

[0016] Secondly, the present invention provides an active roller that is rotatably connected to the driven roller via a transmission belt, and a drive rod, a movable rod, and a drive sleeve are provided between the active rollers on adjacent sides. Thus, after the movable block retracts or expands, each driven roller can always be rotatably connected to each other, thereby enabling the output shaft of the second motor to be connected to each driven roller, achieving the effect of driving the device.

[0017] Thirdly, the present invention provides a tensioning wheel on the inner side of the transmission belt between the drive sleeve and the intermediate roller, which works in conjunction with a spring. When the drive sleeve moves up and down with the contraction or expansion of the movable block, the transmission belt between the drive sleeve and the intermediate roller is always kept taut, thereby ensuring stable transmission between the output shaft of the second motor and each driven roller. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the external structure of the base provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the internal structure of the base provided in an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the external split structure at the cavity provided in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the external structure of the active block provided in an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the centrifugal vibration structure provided in an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the active ring provided in an embodiment of the present invention;

[0025] Figure 7 For the present invention Figure 2 Enlarged structural diagram at point A;

[0026] Figure 8 For the present invention Figure 2Enlarged schematic diagram of the structure at point B.

[0027] In the picture:

[0028] 1. Base; 11. Arc-shaped positioning block; 12. Heating plate; 13. Processor; 14. Temperature sensor;

[0029] 2. Cavity; 21. Movable block; 22. Arc-shaped drive plate; 23. First motor; 24. Drive gear; 25. Limiting slider; 26. Limiting groove; 27. Driveing ​​slider; 28. Driveing ​​groove; 29. ​​Transmission mechanism; 291. Limiting sleeve;

[0030] 3. Driven roller; 31. Driving roller; 311. First transmission belt; 33. Intermediate roller; 34. Worm gear; 35. Second motor; 36. Worm;

[0031] 4. Tensioning mechanism; 41. Tensioning wheel; 42. Limiting rotating seat; 43. Ear plate; 44. Moving ring; 45. Connecting seat; 46. Positioning block;

[0032] 110. First slot; 15. Cavity; 220. Second slot; 292. Limiting rod; 321. Drive sleeve; 322. Driveing ​​rod; 323. Movable rod; 324. Limiting slide; 331. Second transmission belt; 332. Third transmission belt; 341. Groove; 47. Movable slider; 49. Spring; 5. Centrifugal vibration mechanism; 51. Eccentric hammer; 52. First annular cavity; 53. Second annular cavity; 54. Driving shaft; 55. Driven shaft; 56. Fourth transmission belt. Detailed Implementation

[0033] To make the technical means, creative features, objectives, and effects of this invention readily understandable, the invention is further described below with reference to specific illustrations. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Please see Figure 1 - Figure 8This invention provides a technical solution: a de-icing device for high-voltage cables in a power distribution network, comprising a base 1 and two symmetrically arranged heating plates 12. Arc-shaped positioning blocks 11 are welded to the outer walls of both sides of the base 1. The two heating plates 12 are welded between the two arc-shaped positioning blocks 11. Arc-shaped driving plates 22 are rotatably mounted on the side walls of the two arc-shaped positioning blocks 11 that are far apart from each other. The arc-shaped positioning blocks 11 have a first slot 110, and the arc-shaped driving plates 22 have a second slot 220. The two heating plates 12 are respectively located on both sides of the first slot 110. Each arc-shaped positioning block 11 has a cavity 2. Four movable blocks 21 are slidably mounted on the inner wall of the cavity 2 and are circumferentially distributed at equal intervals around the first slot 110. Each movable block 21 has a driven roller 3 rotatably mounted on one side of its outer wall. The cavity 2 has four limiting grooves 26 arranged in a circular array at equal angles. Each movable block 21 has a limiting slider 25 bolted to one side. The four limiting sliders 25 correspond one-to-one with the four limiting grooves 26, and each corresponding limiting slider 25 and limiting groove 26 are connected by a sliding connection. Two movable blocks 21 have driving sliders 27 bolted to one side of their outer walls. The arc-shaped driving plate 22 has two driving grooves 28, which correspond one-to-one with the two driving sliders 27. Each driving slider 27 is slidably installed in the corresponding driving groove 28, and both driving grooves 28 are inclined.

[0035] Specifically: A transmission mechanism 29 is provided between two adjacent movable blocks 21, wherein no transmission mechanism 29 is provided between two adjacent movable blocks 21. The transmission mechanism 29 includes a limiting sleeve 291 and two limiting rods 292, two driving rods 322, two movable rods 323, a driving sleeve 321 and a limiting slide 324. The limiting sleeve 291 is sleeved around the two limiting rods 292, and the two limiting rods 292 are respectively welded to the surfaces of their two adjacent movable blocks 21.

[0036] Specifically: Each movable block 21 has a drive roller 31 rotatably mounted on one side of its outer wall, and the drive roller 31 and the driven roller 3 are located on opposite sides of the corresponding movable block 21. The driven roller 3 and the drive roller 31 at the same movable block 21 are fitted with a first transmission belt 311.

[0037] Specifically: one side of the outer wall of each drive rod 322 is bolted to the shaft of a nearby drive roller 31. Two movable rods 323 are rotatably connected to the drive rods 322 via universal joints. The drive sleeve 321 is inserted and installed around the two drive rods 322. The limiting slide 324 is rotatably installed around the drive sleeve 321, and the limiting slide 324 is slidably connected to the inner wall of the cavity 2.

[0038] Specifically: a transfer roller 33 and a worm gear 34 are rotatably installed in the cavity 2. A groove 341 is provided on the inner wall of the bottom of each cavity 2. The worm gear 34 is rotatably installed in the groove 341. A second transmission belt 331 is sleeved around the transfer roller 33 and the worm gear 34. A third transmission belt 332 is sleeved around the transfer roller 33 and the drive sleeve 321.

[0039] Specifically: Each cavity 2 has a tensioning mechanism 4 on one outer wall, and the tensioning mechanism 4 is located on the inner side of the third transmission belt 332. The tensioning mechanism 4 includes two ear plates 43, a movable ring 44, a limiting rotating seat 42, two connecting seats 45 and two tensioning wheels 41. The two ear plates 43 are welded to the inner wall of the corresponding cavity 2. The limiting rotating seat 42 is fixed between the two ear plates 43. The movable ring 44 is rotatably installed on the periphery of the limiting rotating seat 42. The two connecting seats 45 are integrally formed on the outer sides of the movable ring 44. The outer wall of each connecting seat 45 is rotatably installed with a tensioning wheel 41. The inner side of the third transmission belt 332 is in contact with the two tensioning wheels 41 and can drive them to rotate.

[0040] Specifically: The outer side of the limiting rotating seat 42 has two integrally formed positioning blocks 46, and the inside of the movable ring 44 has two movable sliders 47 fixedly installed. The positioning blocks 46 and the movable sliders 47 are distributed alternately in pairs, and a spring 49 is fixedly installed between each positioning block 46 and its adjacent movable slider 47.

[0041] Specifically: Each movable block 21 is equipped with a centrifugal vibration mechanism 5. The centrifugal vibration mechanism 5 includes an eccentric hammer 51, a first annular cavity 52, a second annular cavity 53, a driving shaft 54, a driven shaft 55, and a fourth transmission belt 56. The first annular cavity 52 is opened in the driven roller 3. The driven shaft 55 is fixedly installed in the middle of the first annular cavity 52. ​​The eccentric hammer 51 is located on the periphery of the driven shaft 55, and the eccentric hammer 51 and the driven shaft 55 are integrally formed. The second annular cavity 53 is opened in the driving roller 31. The driving shaft 54 ​​is fixedly installed in the middle of the second annular cavity 53, and the fourth transmission belt 56 is sleeved on the periphery of the driving shaft 54 ​​and the driven shaft 55.

[0042] Specifically: A processor 13 and a temperature sensor 14 are fixedly installed inside and on the upper surface of the base 1, respectively. The processor 13 is used to process and transmit the information of the temperature sensor 14. Two cavities 15 are opened inside the base 1. A first motor 23 and a second motor 35 are bolted to the two cavities 15, respectively. Drive gears 24 that mesh with the outer periphery of two arc-shaped drive plates 22 are rotatably installed on both sides of the base 1. The first motor 23 is fixedly connected to the middle of the two drive gears 24 through its output shafts on both sides. The second motor 35 is connected to two worm gears 36 integrally formed with it through its output shafts on both sides. The worm gears 36 are slidably connected to the outer periphery of the worm wheel 34, and the worm gears 36 are rotatably installed in the groove 341.

[0043] Working principle: When installing the device around the cable, the device can be inserted and installed around the cable through the arc-shaped positioning blocks 11 on both sides and the notch on the upper side of the arc-shaped positioning blocks 11. Start the first motor 23. The first motor 23 can drive the arc-shaped drive plate 22 to rotate at the outer end of the cavity 2 through the meshing effect between its output shaft and drive gear 24 and the outer side of the arc-shaped drive plate 22. In the inner cavity 2, through the sliding cooperation between each limiting slider 25 and each radially distributed limiting groove 26, the movement direction of each movable block 21 is restricted, so that the rotating arc-shaped drive plate 22 can drive one side of the movable block 21 to move inward through the sliding cooperation between the drive groove 28 on one side and the drive slider 27. The movable block 21 moving on one side can simultaneously drive each movable block 21 to retract inward through the insertion cooperation between the adjacent limiting plug rods 292 and the limiting plug sleeve 291 on both sides, so that the inner driven roller 3 of each movable block 21 is in contact with the outer side of the cable, and the installation of the device is completed around the cable.

[0044] When each movable block 21 retracts inward, the moving movable block 21 can drive the movable plug rod 323 to move inward, and through the plugging and engagement between the movable plug rod 323 and the drive plug sleeve 321, it can drive the drive plug sleeve 321 to move inward with it.

[0045] When the lower drive sleeve 321 moves, it will drive the transmission belt between it and the intermediate roller 33 to move with it. A limit rotating seat 42 and a movable ring 44 are rotatably connected to each other in the transmission belt. Through the spring 49 fixed between the inner connecting seat 45 and the movable slider 47, the tension wheel 41 of the movable ring 44 can be made to fit with the inner side of the transmission belt, so that the transmission belt can always be kept taut.

[0046] When the device is moved around the cable, the second motor 35 is started. The second motor 35 drives the worm 36 to rotate through its output shaft. Then, through the threaded engagement between the worm 36 and the worm wheel 34, the rotational engagement between the worm wheel 34 and the intermediate roller 33 through the transmission belt, and the rotational engagement between the intermediate roller 33 and the lower drive sleeve 321 through the transmission belt, the lower drive sleeve 321 can be driven to rotate. The rotating lower drive sleeve 321, through its insertion engagement with the movable insert rods 323 on both sides of the inner cavity, and the movable insert rods 323 being rotatably connected to the drive insert rods 322 through universal joints, can drive each active roller 31 to rotate. Finally, each rotating active roller 31 drives each driven roller 3 to rotate around the cable through the transmission belt, achieving the effect of moving the device around the cable.

[0047] Temperature sensor 14 is installed to monitor the surface temperature of the cable and transmit information on the presence and thickness of ice to processor 13. Processor 13 uses a microcontroller unit to process and remotely transmit the signal input from temperature sensor 14. The specific model can be the APT32F110X series product manufactured by Shenzhen APT Microelectronics Co., Ltd. First, if ice is present, processor 13 can activate heating plate 12 to appropriately heat the cable and remove the ice on the cable surface. Second, processor 13 is connected to the control center via WiFi and can transmit cable temperature information from various locations to the control center, facilitating information collection, processing, and subsequent prevention by staff. The eccentric hammer 51 is installed and can generate vibration when driven by the active rotating shaft 54, thereby promoting better snow removal.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution network high voltage cable de-icing device comprising a base (1) and two mutually symmetrical heating plates (12), characterised in that: Arc-shaped positioning blocks (11) are welded to both outer walls of the base (1). Two heating plates (12) are welded between the two arc-shaped positioning blocks (11). Arc-shaped driving plates (22) are rotatably installed on the side walls of the two arc-shaped positioning blocks (11) that are far apart from each other. The arc-shaped positioning blocks (11) have a first slot (110). The arc-shaped driving plates (22) have a second slot (220). The two heating plates (12) are respectively located on both sides of the first slot (110). Each arc-shaped positioning block (11) has a cavity (2). Four movable blocks (21) are slidably installed on the inner wall of the cavity (2) and are distributed in an evenly spaced circular pattern around the first slot (110). A driven roller is rotatably installed on one outer wall of each movable block (21). The wheel (3) has four limiting grooves (26) arranged in a circular array at equal angles in the cavity (2). Each movable block (21) has a limiting slider (25) bolted to one side. The four limiting sliders (25) correspond one-to-one with the four limiting grooves (26). Each corresponding limiting slider (25) and the limiting groove (26) are connected by a sliding connection. The outer wall of one side of each of the two movable blocks (21) is bolted with a driving slider (27). The arc-shaped driving plate (22) has two driving grooves (28) and corresponds one-to-one with the two driving sliders (27). Each driving slider (27) is slidably installed in the corresponding driving groove (28). Both driving grooves (28) are inclined.

2. A power distribution grid high voltage cable de-icing device according to claim 1, characterized in that: Except for the two adjacent movable blocks (21) at the top, a transmission mechanism (29) is provided between the other two adjacent movable blocks (21). The movable blocks (21) are connected into a "U-shaped" structure by the transmission mechanism (29). The transmission mechanism (29) includes a limiting sleeve (291), two limiting rods (292), two driving rods (322), two movable rods (323), a driving sleeve (321), and a limiting slide (324). The limiting sleeve (291) is sleeved around the two limiting rods (292), and the two limiting rods (292) are welded to the surfaces of their two adjacent movable blocks (21).

3. A power distribution grid high voltage cable de-icing device according to claim 2, characterized in that: Each of the movable blocks (21) has an active roller (31) rotatably mounted on the other side outer wall, and the active roller (31) and the driven roller (3) are respectively located on the opposite side walls of the corresponding movable block (21). The driven roller (3) and the active roller (31) at the same movable block (21) are fitted with a first transmission belt (311).

4. The de-icing device for high-voltage cables in a power distribution network according to claim 3, characterized in that: One side of the outer wall of each of the drive rods (322) is bolted to the shaft of a nearby drive roller (31). The two movable rods (323) are rotatably connected to the drive rods (322) through universal joints. The drive sleeve (321) is inserted and installed around the two movable rods (323). The limiting slide (324) is rotatably installed around the drive sleeve (321), and the limiting slide (324) is slidably connected to the inner wall of the cavity (2).

5. A de-icing device for high-voltage cables in a power distribution network according to claim 4, characterized in that: A transfer roller (33) and a worm gear (34) are rotatably installed in the cavity (2). A groove (341) is provided on the bottom inner wall of each cavity (2). The worm gear (34) is rotatably installed in the groove (341). A second transmission belt (331) is sleeved around the transfer roller (33) and the worm gear (34). There are three drive sleeves (321). The drive sleeve (321) located on the lower side is connected to the transfer roller (33) through a third transmission belt (332).

6. The de-icing device for high-voltage cables in a power distribution network according to claim 5, characterized in that: Each of the concave cavities (2) is provided with a tensioning mechanism (4) on one side of its inner wall. The tensioning mechanism (4) is located on the inner side of the transmission of the third transmission belt (332). The tensioning mechanism (4) includes two ear plates (43), a movable ring (44), a limiting rotating seat (42), two connecting seats (45), and two tensioning wheels (41). The two ear plates (43) are welded to the inner wall of the corresponding concave cavity (2). The limiting rotating seat (42) is fixed between the two ear plates (43). The movable ring (44) is rotatably installed on the periphery of the limiting rotating seat (42). The two connecting seats (45) are integrally formed on the outer sides of the movable ring (44). Each connecting seat (45) has a tensioning wheel (41) rotatably installed on its outer wall. The inner side of the third transmission belt (332) is in contact with the two tensioning wheels (41) and can drive them to rotate.

7. A de-icing device for high-voltage cables in a power distribution network according to claim 6, characterized in that: The outer side of the limiting rotating seat (42) has two positioning blocks (46) integrally formed, and the inner side of the movable ring (44) has two movable sliders (47) fixedly installed. The positioning blocks (46) and the movable sliders (47) are distributed alternately in pairs, and each positioning block (46) is fixedly installed with a spring (49) between it and its adjacent movable slider (47).

8. The de-icing device for high-voltage cables in a power distribution network according to claim 4, characterized in that: Each of the movable blocks (21) is provided with a centrifugal vibration mechanism (5). The centrifugal vibration mechanism (5) includes an eccentric hammer (51), a first annular cavity (52), a second annular cavity (53), an active rotating shaft (54), a driven rotating shaft (55), and a fourth transmission belt (56). The first annular cavity (52) is opened in the driven roller (3). The driven rotating shaft (55) is fixedly installed in the middle of the first annular cavity (52). The eccentric hammer (51) is located on the periphery of the driven rotating shaft (55). The eccentric hammer (51) and the driven rotating shaft (55) are integrally formed. The second annular cavity (53) is opened in the active roller (31). The active rotating shaft (54) is fixedly installed in the middle of the second annular cavity (53). The fourth transmission belt (56) is sleeved on the periphery of the active rotating shaft (54) and the driven rotating shaft (55).

9. A de-icing device for high-voltage cables in a power distribution network according to claim 7, characterized in that: The base (1) is fixedly installed with a processor (13) and a temperature sensor (14) on its interior and upper surface, respectively. The processor (13) is used to process and transmit the information of the temperature sensor (14). The base (1) has two cavities (15) and a first motor (23) and a second motor (35) are bolted to the two cavities (15), respectively. The base (1) has two drive gears (24) that mesh with the outer periphery of two arc-shaped drive plates (22) on its two sides. The first motor (23) is fixedly connected to the middle of the two drive gears (24) through its two output shafts. The second motor (35) is connected to two worm gears (36) that are integrally formed with it through its two output shafts. The worm gears (36) are slidably connected to the outer periphery of the worm wheel (34), and the worm wheel (34) is rotatably installed in the groove (341).

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