Line deicing device for electric power operation and maintenance

Abstract

The utility model relates to the technical field of line deicing, and discloses a line deicing device for electric power operation and maintenance, which comprises a moving trolley, a height adjusting assembly, a deicing assembly and a distance adjusting mechanism, and is characterized in that the height adjusting assembly is arranged on the moving trolley; the deicing assembly comprises a mounting base and two deicing mechanisms, the mounting base is arranged at the driving end of the height adjusting assembly, and the two deicing mechanisms are arranged in the length direction of the mounting base at intervals; the distance adjusting mechanism is arranged on the mounting seat, connected with the two groups of deicing mechanisms and suitable for driving the two groups of deicing mechanisms to move face to face or back to back, the distance between the two groups of deicing mechanisms can be flexibly adjusted through the distance adjusting mechanism, deicing operation can be carried out on electric power lines with different diameters, and the universality is high.

Description

Technical Field

[0001] This utility model relates to the field of power line de-icing technology, specifically to a power line de-icing device for power operation and maintenance. Background Technology

[0002] During the cold winter months, power transmission lines and power lines within photovoltaic power plants are prone to icing due to low temperatures. This is especially severe in high-altitude and frigid regions and under extreme weather conditions, where line icing not only reduces power transmission efficiency and affects normal line operation but can also lead to line damage and power outages. To ensure the safe and stable operation of the power system, effective line de-icing measures are necessary to reduce the impact of ice on the lines.

[0003] An existing line de-icing device mainly consists of two de-icing rollers and a pull rod. The two de-icing rollers work together to clamp and fix the line. A pull rod is installed directly below the de-icing rollers, and a striking device and a support spring are mounted on the pull rod. During the de-icing process, the worker pulls the pull rod, accumulating elastic potential energy. Upon releasing the rod, this elastic potential energy is converted into kinetic energy, and the striking device strikes and squeezes away the ice on the line surface, achieving the de-icing effect. However, this de-icing device is not convenient for flexibly adjusting the working distance between the two de-icing rollers, limiting its applicability to lines of different diameters. Maintenance personnel need to make adjustments for lines of different diameters, resulting in poor versatility. Utility Model Content

[0004] In view of this, the present invention provides a power line de-icing device for operation and maintenance, in order to solve the problem that the existing line de-icing devices have a fixed de-icing roller spacing, which makes it impossible to de-ic the lines of different diameters and has poor versatility.

[0005] In a first aspect, this utility model provides a line de-icing device for power operation and maintenance, comprising:

[0006] Mobile cart;

[0007] A height adjustment component is disposed on the mobile trolley;

[0008] A de-icing assembly, comprising: a mounting base and two sets of de-icing mechanisms, wherein the mounting base is disposed at the drive end of the height adjustment assembly, and the two sets of de-icing mechanisms are spaced apart along the length direction of the mounting base;

[0009] A spacing adjustment mechanism is provided on the mounting base and connected to the two sets of de-icing mechanisms, which is suitable for driving the two sets of de-icing mechanisms to move towards or away from each other.

[0010] Beneficial effects

[0011] The mobile trolley can move freely along the power line path, facilitating quick switching of work positions and improving work efficiency. The height adjustment component allows the de-icing assembly to be adapted to power lines of different heights, meeting the de-icing needs of lines at varying heights. The spacing adjustment mechanism allows for flexible adjustment of the distance between the two sets of de-icing units, enabling flexible adaptation to different line diameters and providing good versatility for the device.

[0012] In one optional embodiment, the spacing adjustment mechanism includes: a first driving member and a bidirectional screw, the first driving member being disposed on the mounting base, its driving end being connected to the bidirectional screw, the bidirectional screw having two threaded sections with opposite directions of rotation, and the two sets of the de-icing mechanism being respectively disposed on the two threaded sections.

[0013] Beneficial effects

[0014] The bidirectional screw can accurately adjust the working distance between the two sets of de-icing mechanisms, with high adjustment precision, and can meet the de-icing needs of power lines of different diameters.

[0015] In one optional embodiment, the de-icing mechanism includes: a movable seat, a support platform, a second driving member, and a de-icing roller. The movable seat is disposed on the threaded section, the support platform is disposed on the movable seat, the second driving member and the de-icing roller are disposed on the support platform, and the driving end of the second driving member is connected to the de-icing roller.

[0016] Beneficial effects

[0017] The second drive unit provides continuous and stable rotational power to the de-icing roller, enabling the de-icing roller to rotate and rub against the outer wall of the power line, quickly removing ice from the surface of the power line.

[0018] In one alternative implementation, the two de-icing rollers rotate in opposite directions.

[0019] Beneficial effects

[0020] The de-icing rollers rotate in opposite directions, so that while the two de-icing rollers clamp the power line, they form bidirectional shearing and compressive forces, which enhances the tearing and peeling effect on the ice covering the power line surface, resulting in a good de-icing effect.

[0021] In one alternative embodiment, a limiting groove is provided on the mounting base, and two movable seats are disposed in the limiting groove.

[0022] Beneficial effects

[0023] The limiting groove can effectively constrain the movement trajectory of the moving seat, preventing the moving seat from deviating or swinging, which could lead to misalignment of the de-icing mechanism.

[0024] In one optional embodiment, the height adjustment assembly includes: a hollow box, a lifting mechanism, and a guide mechanism, wherein the hollow box is disposed on the top of the mobile trolley, and the lifting mechanism and the guide mechanism are disposed in the hollow box.

[0025] Beneficial effects

[0026] The lifting mechanism can drive the de-icing assembly to move vertically, and can be adjusted for power lines at different heights, improving the de-icing assembly's adaptability to different operating scenarios. The guide mechanism improves the stability of the lifting mechanism's movement, preventing it from deviating or swaying.

[0027] In one optional embodiment, the lifting mechanism includes: a third driving member, a transmission gear, and a transmission rack. The third driving member is disposed on the outer wall of the hollow box, the transmission gear is disposed on the inner wall of the hollow box, and the transmission gear is connected to the driving end of the third driving member. The transmission rack is disposed along the height direction of the hollow box, and the transmission rack meshes with the transmission gear.

[0028] Beneficial effects

[0029] The transmission gear-rack structure has advantages such as high transmission efficiency, strong load capacity and fast response speed, which makes the lifting mechanism remain stable during lifting operations and has high adjustment accuracy.

[0030] In one optional embodiment, the guiding mechanism includes a guide rail and a sliding block, the guide rail being formed on the inner wall of the hollow box, the sliding block being disposed on the transmission rack, and the sliding block being slidably connected to the guide rail.

[0031] Beneficial effects

[0032] The sliding block slides along the guide rail, which can guide and limit the movement direction of the transmission rack, prevent uneven force on the de-icing assembly or drive deviation from causing shaking or jamming, and ensure the stability and straightness of the de-icing assembly during the lifting process.

[0033] In one alternative embodiment, the mobile vehicle includes a vehicle body and a moving wheel mechanism disposed at the bottom of the vehicle body.

[0034] In one alternative implementation, the mobile vehicle further includes a remote controller, which is communicatively connected to the mobile wheel mechanism.

[0035] Beneficial effects

[0036] Maintenance personnel can use a remote control to remotely control the mobile cart, which is convenient to operate and makes the line de-icing process safer. Attached Figure Description

[0037] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0038] Figure 1 This is a schematic diagram of the overall structure of a power line de-icing device according to an embodiment of the present utility model;

[0039] Figure 2 This is a schematic diagram of the structure of the de-icing assembly according to an embodiment of the present invention;

[0040] Figure 3 This is a three-dimensional structural diagram of the vertical cross-section of the hollow box according to an embodiment of the present utility model;

[0041] Figure 4 This is a structural schematic diagram of the lifting mechanism according to an embodiment of the present utility model.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Mobile trolley; 11. Car body; 12. Mobile wheel mechanism;

[0044] 2. Height adjustment component; 21. Hollow box; 22. Lifting mechanism; 221. Third drive component; 222. Transmission gear; 223. Transmission rack; 23. Guide mechanism; 231. Guide rail; 232. Sliding block;

[0045] 3. De-icing assembly; 31. Mounting base; 311. Limiting groove; 312. Base plate; 313. Side plate; 32. De-icing mechanism; 321. Movable seat; 322. Support platform; 323. Second drive component; 324. De-icing roller.

[0046] 4. Spacing adjustment mechanism; 41. First driving component; 42. Bidirectional screw. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0048] The following is combined Figures 1 to 4The following describes embodiments of the present invention.

[0049] According to an embodiment of the present invention, a line de-icing device for power operation and maintenance is provided, comprising: a mobile trolley 1, a height adjustment component 2, a de-icing component 3, and a spacing adjustment mechanism 4. The height adjustment component 2 is disposed on the mobile trolley 1. The de-icing component 3 comprises: a mounting base 31 and two sets of de-icing mechanisms 32. The mounting base 31 is disposed at the drive end of the height adjustment component 2, and the two sets of de-icing mechanisms 32 are spaced apart along the length direction of the mounting base 31. The spacing adjustment mechanism 4 is disposed on the mounting base 31 and connected to the two sets of de-icing mechanisms 32, and is adapted to drive the two sets of de-icing mechanisms 32 to move towards or away from each other.

[0050] Specifically, the mobile trolley 1 provides mobility for the de-icing device, enabling it to be moved to the target location below the power line. The mobile trolley 1 can have a rectangular body 11 structure with multiple rolling wheels or track wheels at the bottom, suitable for flat ground or pre-set work tracks. The height adjustment component 2 is located on the top of the mobile trolley 1 and is fixedly connected to it. Its function is to drive the de-icing component 3 to rise and fall vertically, thus adapting to power lines at different heights. The height adjustment component 2 can be raised or lowered manually or mechanically, allowing the de-icing component 3 to rise or fall to the same height as the power line, ensuring contact and contact with the power line surface.

[0051] The bottom of the mounting base 31 is fixedly connected to the upper end of the height adjustment assembly 2 to support and position the two sets of de-icing mechanisms 32. The two sets of de-icing mechanisms 32 are arranged opposite each other on the mounting base 31. The spacing adjustment mechanism 4 is mounted on the mounting base and fixedly connected to the two sets of de-icing mechanisms 32. The de-icing mechanisms 32 can move along the length of the mounting base 31 under the action of the spacing adjustment mechanism 4. When the two sets of de-icing mechanisms 32 move towards each other, they can adhere to the surface of the power line from both sides to remove ice. After de-icing, the two sets of de-icing mechanisms 32 move away from each other and separate from the power line. Through the linkage of the spacing adjustment mechanism 4, the spacing between the two de-icing mechanisms 32 can be changed, allowing for flexible alignment with the actual diameter of the power line to accommodate different diameters. This ensures that the de-icing mechanisms 32 can effectively clamp the line and adhere to its outer surface for de-icing during operation, guaranteeing the de-icing effect and possessing strong versatility.

[0052] In one embodiment, the spacing adjustment mechanism 4 includes a first driving member 41 and a bidirectional screw 42. The first driving member 41 is disposed on the mounting base 31, and its driving end is connected to the bidirectional screw 42. The bidirectional screw 42 has two threaded sections with opposite directions of thread, and two sets of de-icing mechanisms 32 are respectively disposed on the two threaded sections.

[0053] Specifically, the mounting base 31 includes a long strip-shaped base plate 312 and side plates 313 welded to both ends of the top of the mounting base 31. A mounting plate is horizontally welded and fixed to the outer wall of the base plate 312, and the first driving component 41 is fixedly mounted on the mounting plate. The first driving component 41 is a servo motor, but can also be an electric motor, a pneumatic drive device, or other drive unit with rotation output function. The output shaft of the servo motor passes through the outer wall of one side plate 313 and is connected to one end of a bidirectional screw 42 via a coupling. The other end of the bidirectional screw 42 is rotatably inserted into the inner wall of the other side plate 313. The bidirectional screw 42 has two threaded sections, which are located on both sides of the screw center and have opposite thread directions, forming a symmetrical structure. A set of de-icing mechanisms 32 is symmetrically screwed onto each of the two threaded sections. When the servo motor drives the bidirectional screw 42 to rotate, it can drive the two sets of de-icing mechanisms 32 to move synchronously towards or away from each other along the length of the bidirectional screw 42.

[0054] The bidirectional screw 42 itself has high adjustment accuracy and stability. Furthermore, the threads on both sides of the bidirectional screw 42 rotate in opposite directions. Under a single rotation direction, it can realize the synchronous movement of the two sets of de-icing mechanisms 32 towards or away from each other, simplifying the movement control process of the de-icing mechanism 32.

[0055] In other embodiments, the bidirectional screw 42 can also be replaced by two synchronous electric push rods or two independent lead screws with a synchronous linkage structure, which can also drive the two sets of de-icing mechanisms 32 to move synchronously in opposite directions or away from each other.

[0056] In one embodiment, the de-icing mechanism 32 includes: a movable seat 321, a support platform 322, a second driving member 323, and a de-icing roller 324. The movable seat 321 is disposed on the threaded section, the support platform 322 is disposed on the movable seat 321, the second driving member 323 and the de-icing roller 324 are disposed on the support platform 322, and the driving end of the second driving member 323 is connected to the de-icing roller 324.

[0057] Specifically, the movable base 321 is threadedly engaged with the bidirectional screw 42 via an internal thread structure, allowing the screw to move horizontally along its length when the mounting base 31 rotates. The support platform 322 is fixed above the movable base 321, serving as a mounting platform to support the second drive component 323 and the de-icing roller 324. The support platform 322 can be a rigid plate or frame structure and is securely connected to the movable base 321 by bolts or welding. The second drive component 323 is fixedly installed at the bottom of the support platform 322, providing rotational power to the de-icing roller 324. The second drive component 323 is preferably a motor, but a small DC motor or a small geared motor can also be used. The de-icing roller 324 is installed at the bottom of the support platform 322 and consists of a roller shaft and a roller body. One end of the roller shaft is inserted into the center of the roller body, and the other end is connected to the output end of the motor. The motor drives the roller body to rotate around the roller shaft.

[0058] The de-icing roller 324 is vertically arranged on the support platform 322, perpendicular to the direction of the movable seat 321. Its outer surface may be provided with anti-slip textures or an elastic coating to enhance the contact friction with the ice layer on the power line surface. Driven by a motor, the de-icing roller 324 contacts the ice layer on the power line surface and rotates, thereby breaking and peeling off the attached ice layer, completing the de-icing operation.

[0059] In one embodiment, the two de-icing rollers 324 rotate in opposite directions.

[0060] Specifically, the control signals or power supplies of the two motors have opposite polarities, causing their drive output directions to be opposite, thus achieving opposite rotation directions for the de-icing rollers 324. Simultaneously, the opposite rotation directions of the de-icing rollers 324 generate bidirectional shearing force while clamping the power lines, producing a reverse pulling and breaking effect on the ice covering the power lines, thereby enhancing de-icing efficiency.

[0061] In one embodiment, a limiting groove 311 is provided on the mounting base 31, and two movable seats 321 are disposed in the limiting groove 311.

[0062] Specifically, a limiting groove 311 is provided on the top or inside of the mounting base 31, which is consistent with the moving direction of the de-icing mechanism 32. The cross-section of the limiting groove 311 can be U-shaped, I-shaped or other guide groove structure. The bottom of the moving base 321 is formed with a snap-fit ​​structure. The width of the limiting groove 311 is slightly larger than the size of the bottom snap-fit ​​structure of the moving base 321, so that the moving base 321 can slide smoothly in the limiting groove 311.

[0063] The bottom of the movable seat 321 is slidably connected to the inner wall of the limiting groove 311, allowing it to move only along the direction of the limiting groove 311, preventing deviation, shaking, or rotational tilting. The length of the limiting groove 311 meets the maximum spacing adjustment range of the de-icing mechanism 32, and it has limiting ends on both sides to limit the maximum stroke of the movable seat 321 and prevent it from coming out of the groove.

[0064] In one embodiment, the height adjustment component 2 includes a hollow box 21, a lifting mechanism 22, and a guide mechanism 23. The hollow box 21 is disposed on the top of the mobile trolley 1, and the lifting mechanism 22 and the guide mechanism 23 are disposed on the hollow box 21.

[0065] Specifically, the hollow box 21 on the top of the trolley provides installation space for the lifting mechanism 22 and the guide mechanism 23. The hollow box 21 is a longitudinally arranged closed or semi-closed structure, preferably a rectangular steel structure, but a cylindrical steel structure can also be used. Its bottom is fixedly connected to the trolley body 11 by welding or bolting. The lifting mechanism 22 and the guide mechanism 23 are installed inside the hollow box 21. The lifting mechanism 22 is used to drive the de-icing assembly 3 to rise and fall in the vertical direction to adapt to power lines at different heights. The guide mechanism 23 is used to limit the direction of movement of the lifting mechanism 22 during the lifting process to prevent it from tilting, shaking or jamming, and to ensure the smooth vertical movement of the de-icing assembly 3.

[0066] In one embodiment, the lifting mechanism 22 includes a third driving member 221, a transmission gear 222, and a transmission rack 223. The third driving member 221 is disposed on the outer wall of the hollow box 21, the transmission gear 222 is disposed on the inner wall of the hollow box 21, and the transmission gear 222 is connected to the driving end of the third driving member 221. The transmission rack 223 is disposed along the height direction of the hollow box 21, and the transmission rack 223 meshes with the transmission gear 222.

[0067] Specifically, the third drive component 221 is fixedly installed on the outer wall of the hollow box 21. In this embodiment, a stepper motor is selected, but an electric motor, servo driver, or other drive components with rotation output function can also be used. The output shaft of the stepper motor passes through the side wall of the hollow box 21 and connects to the transmission gear 222 inside the hollow box 21. The transmission gear 222 is located inside the hollow box 21, corresponding to the position of the output shaft of the stepper motor, and is fixed to the output shaft by a key connection or fasteners. The transmission rack 223 is vertically arranged along the height direction of the hollow box 21, and one end of it is fixedly welded to the lower end plane of the mounting base 31. The transmission rack 223 meshes with the transmission gear 222. When the gear rotates, it drives the transmission rack 223 to achieve linear movement in the vertical direction, thereby driving the de-icing component 3 to rise and fall, realizing the adjustment of the working height.

[0068] The transmission gear 222-transmission rack 223 structure has high transmission efficiency, good positioning accuracy and load capacity, and can meet the needs of frequent lifting and multi-height operation during power line de-icing.

[0069] In other embodiments, the drive gear and drive rack can also be replaced by an electric lifting screw, an electric push rod, or a ball screw plus a stepper motor system, which can drive the de-icing assembly 3 to achieve the up and down lifting function.

[0070] In one embodiment, the guiding mechanism 23 includes a guide rail 231 and a sliding block 232. The guide rail 231 is formed on the inner wall of the hollow box 21, and the sliding block 232 is disposed on the transmission rack 223 and is slidably connected to the guide rail 231.

[0071] Specifically, the guide rail 231 is formed on the inner wall of the hollow box 21, arranged along the height direction of the hollow box 21, and consistent with the movement direction of the transmission rack 223. The guide rail 231 can be a channel-shaped, T-shaped, or rectangular cross-section structure, made of high-strength metal material, providing rigid guidance for the lifting process. The sliding block 232 is slidably connected to the guide rail 231, ensuring that it can slide smoothly within the guide rail 231 without wobbling. The sliding block 232 can be fixed to the back or sides of the transmission rack 223 by screws, clips, or a nested structure.

[0072] The sliding block 232 slides in the guide rail 231, which effectively limits the offset, skew or twisting of the transmission rack 223. The lifting mechanism 22 and its connected de-icing component 3 can maintain a vertical and stable motion trajectory during the lifting process.

[0073] In one embodiment, the mobile vehicle 1 includes a vehicle body 11 and a moving wheel mechanism 12 disposed at the bottom of the vehicle body 11.

[0074] Specifically, the vehicle body 11 adopts a steel structure frame, which is rectangular in shape and has sufficient strength to support the weight of the entire de-icing device. The upper part of the vehicle body 11 is used to install the height adjustment component 2, the de-icing component 3 and the spacing adjustment mechanism 4. Multiple moving wheel mechanisms 12 are fixedly connected and installed at the bottom of the vehicle body 11 to realize the movement of the vehicle.

[0075] In this embodiment, the moving wheel mechanism 12 includes four wheels located at the bottom of the vehicle body. The wheels can be swivel wheels, drive wheels, rolling wheels, or other types, and are made of high-strength rubber or wear-resistant plastic materials, suitable for uneven or muddy surfaces.

[0076] In one embodiment, the mobile vehicle 1 also includes a remote controller, which is communicatively connected to the mobile wheel mechanism 12.

[0077] Specifically, the remote control is a wireless control device that communicates with the control system of the mobile vehicle 1 using radio frequency or infrared technology. The remote control functions include starting, stopping, moving the vehicle forward, backward, turning, and speed control. The remote control and the vehicle are connected via a wireless communication module, which can be Bluetooth, Wi-Fi, or other suitable wireless communication protocols to ensure stable and interference-free signal during long-distance operation. The moving wheel mechanism 12 communicates with the remote control in real time via wireless signals. The remote control sends control signals to the receiving module on the mobile vehicle 1. After receiving the signal, the drive system operates the moving wheels according to the instructions, causing the vehicle to perform corresponding actions. Maintenance personnel can control the direction and speed of the mobile vehicle 1 via the remote control for flexible deployment and position adjustment at the power line work site.

[0078] Working Process: Maintenance personnel use a remote control to send control commands wirelessly, and the trolley moves to the target position according to the commands. After the trolley reaches the designated position, the height adjustment component 2 starts working. The lifting mechanism 22 drives the de-icing component 3 to adjust its height. Through the cooperation of the transmission rack 223 and the guide mechanism 23, the de-icing component 3 can be accurately connected to the power line. Next, the spacing adjustment mechanism 4 starts to adjust the spacing between the two sets of de-icing mechanisms 32 of the de-icing component 3. Through the precise adjustment of the bidirectional screw 42 and the first drive component 41, it adapts to power lines of different diameters, ensuring that the de-icing roller 324 can closely fit the surface of the line. After the position and spacing of the de-icing mechanism 32 are adjusted, the two de-icing rollers 324 start working. Powered by the second drive component 323, the two de-icing rollers 324 rotate in opposite directions, forming a shearing force while clamping the power line, effectively breaking and peeling off the attached ice layer.

[0079] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A power line de-icing device for power operation and maintenance, characterized in that, include: Mobile cart (1); A height adjustment component (2) is disposed on the mobile trolley (1); The de-icing assembly (3) includes: a mounting base (31) and two sets of de-icing mechanisms (32). The mounting base (31) is located at the drive end of the height adjustment assembly (2), and the two sets of de-icing mechanisms (32) are spaced apart along the length of the mounting base (31). A spacing adjustment mechanism (4) is provided on the mounting base (31) and connected to the two sets of de-icing mechanisms (32), which is suitable for driving the two sets of de-icing mechanisms (32) to move towards or away from each other.

2. The power line de-icing device for power operation and maintenance according to claim 1, characterized in that, The spacing adjustment mechanism (4) includes: a first driving member (41) and a bidirectional screw (42). The first driving member (41) is disposed on the mounting base (31), and its driving end is connected to the bidirectional screw (42). The bidirectional screw (42) has two threaded sections with opposite directions of thread. The two sets of de-icing mechanisms (32) are respectively disposed on the two threaded sections.

3. The power line de-icing device for power operation and maintenance according to claim 2, characterized in that, The de-icing mechanism (32) includes: a movable seat (321), a support platform (322), a second driving member (323), and a de-icing roller (324). The movable seat (321) is disposed on the threaded section, the support platform (322) is disposed on the movable seat (321), the second driving member (323) and the de-icing roller (324) are disposed on the support platform (322), and the driving end of the second driving member (323) is connected to the de-icing roller (324).

4. The power line de-icing device for power operation and maintenance according to claim 3, characterized in that, The two de-icing rollers (324) rotate in opposite directions.

5. The power line de-icing device for power operation and maintenance according to claim 3, characterized in that, The mounting base (31) has a limiting groove (311), and the two movable seats (321) are disposed in the limiting groove (311).

6. The power line de-icing device for power operation and maintenance according to any one of claims 1-5, characterized in that, The height adjustment component (2) includes: a hollow box (21), a lifting mechanism (22) and a guide mechanism (23). The hollow box (21) is located on the top of the mobile trolley (1), and the lifting mechanism (22) and the guide mechanism (23) are located in the hollow box (21).

7. The power line de-icing device for power operation and maintenance according to claim 6, characterized in that, The lifting mechanism (22) includes: a third driving member (221), a transmission gear (222), and a transmission rack (223). The third driving member (221) is disposed on the outer wall of the hollow box (21), the transmission gear (222) is disposed on the inner wall of the hollow box (21), and the transmission gear (222) is connected to the driving end of the third driving member (221). The transmission rack (223) is disposed along the height direction of the hollow box (21), and the transmission rack (223) meshes with the transmission gear (222).

8. The power line de-icing device for power operation and maintenance according to claim 7, characterized in that, The guiding mechanism (23) includes a guide rail (231) and a sliding block (232). The guide rail (231) is formed on the inner wall of the hollow box (21), and the sliding block (232) is disposed on the transmission rack (223) and is slidably connected to the guide rail (231).

9. The power line de-icing device for power operation and maintenance according to claim 1, characterized in that, The mobile trolley (1) includes: a trolley body (11) and a moving wheel mechanism (12) disposed at the bottom of the trolley body (11).

10. The power line de-icing device for power operation and maintenance according to claim 9, characterized in that, The mobile trolley (1) also includes a remote controller, which is communicatively connected to the mobile wheel mechanism (12).

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