Spillway crack automatic repairing device

Abstract

The utility model discloses a spillway crack automatic repair device, including mobile trolley, its front end is provided with two groups of up and down extension plate, and is provided with the movable plate between the same group up and down extension plate, is provided with crack repair mechanism on movable plate, still is provided with water supply mechanism, slurry supply mechanism and hot blast machine on mobile trolley, crack repair mechanism includes drill bit, conveying pipeline, transfer storehouse, and with the water delivery flexible hose, slurry supply flexible hose and air supply flexible hose that transfer storehouse top import links, conveying pipeline rotatoryly connects in the middle part of movable plate, and top rotatoryly connects with transfer storehouse, and the side wall bottom is provided with through -hole, and lower end fixedly connected with drill bit, the outlet of water supply mechanism links with water delivery flexible hose, and the outlet of slurry supply mechanism links with slurry supply flexible hose, and the outlet of hot blast machine links with air supply flexible hose, the utility model discloses clever structure, convenient to use, maintenance cost is low, can improve spillway crack's repair quality and repair efficiency greatly.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering construction technology, and in particular to an automated repair device for spillway cracks. Background Technology

[0002] Spillways are structures in water conservancy projects used to safely discharge excess water from reservoirs, lakes, and other water storage facilities, essentially acting as "safety valves" for the reservoirs. Their core function is to prevent dam failure due to excessively high water levels, ensuring the safety of the dam and downstream areas.

[0003] For example, the Oroville Dam spillway accident in the United States occurred in 2017. Cracks and joints existed in the bottom slab of the spillway. High-speed water flow eroded the bedrock beneath the bottom slab through the cracks, causing the bottom slab to be overturned and forming a cavity. The staff had long neglected the crack problem and failed to repair the aging structure in time. A large area of ​​the spillway bottom slab was damaged, forcing the use of a non-functional spillway, which led to downstream erosion, the emergency evacuation of 188,000 people, and repair costs of up to $1 billion, making it one of the most expensive accidents in the history of US water conservancy.

[0004] Currently, the most common method for repairing spillway cracks is to manually chisel open the cracks and then inject cement slurry into them. This method is time-consuming, labor-intensive, inefficient, and not conducive to dam repair, especially for dams with numerous cracks. Summary of the Invention

[0005] To address the aforementioned problems, this utility model provides an automated repair device for spillway cracks that is ingeniously structured and easy to use. Specifically, the following technical solution can be adopted:

[0006] The automated spillway crack repair device of this utility model includes a mobile trolley. The front end of the mobile trolley is provided with an upper extension plate and a lower extension plate. Two sets of the upper extension plate and the lower extension plate are provided correspondingly above and below each other. A vertically lifting movable plate is provided between the upper extension plate and the lower extension plate in the same set. A crack repair mechanism is provided on the movable plate. The mobile trolley is also provided with a water supply mechanism, a slurry supply mechanism and a hot air blower.

[0007] The crack repair mechanism includes a drill bit, a delivery pipe, a transfer chamber, a water delivery telescopic hose, a slurry delivery telescopic hose, and an air delivery telescopic hose. The delivery pipe is rotatably connected to the middle of the movable plate, and the top of the delivery pipe is rotatably connected to the transfer chamber. A through hole is opened at the bottom of the side wall of the delivery pipe, and the drill bit is fixedly connected to the lower end of the delivery pipe. The output end of the water supply mechanism is connected to the input end of the water delivery telescopic hose, the output end of the slurry supply mechanism is connected to the input end of the slurry delivery telescopic hose, the output end of the hot air blower is connected to the input end of the air delivery telescopic hose, and the output ends of the water delivery telescopic hose, the slurry delivery telescopic hose, and the air delivery telescopic hose are all connected to the top inlet of the transfer chamber.

[0008] One end of the movable plate is threadedly connected to the adjusting screw, and the other end is slidably connected to the first limiting rod; the adjusting screw is disposed between a set of upper extension plates and a lower extension plate, and the first limiting rod is disposed between another set of upper extension plates and a lower extension plate; wherein, the top of the adjusting screw is drivenly connected to the output end of the first servo motor, and the first servo motor is fixedly disposed on the surface of the upper extension plate where the adjusting screw is located.

[0009] The surface of the movable plate is provided with a power mechanism for driving the conveying pipe to rotate. The power mechanism includes a power motor, a first gear and a second gear. The power motor is fixedly mounted on the movable plate. The first gear is connected to the output end of the power motor. The second gear is sleeved on the conveying pipe, and the first gear and the second gear mesh with each other.

[0010] A pair of limiting discs are fitted onto the conveying pipe. The limiting discs are respectively located on both sides of the movable plate, and the limiting discs are embedded with balls that are in contact with the surface of the movable plate.

[0011] The transfer chamber is equipped with a second stirring paddle, and a first bevel gear is fixedly connected to the upper end of the output end of the power motor. The end of the second stirring paddle is fixedly connected to a second bevel gear, and the first bevel gear and the second bevel gear mesh with each other.

[0012] The water supply mechanism includes a water pump, a water pipe, and a water tank. The water pump and the water tank are both fixedly installed on a mobile trolley, and the water pipe is located between the input end of the water pump and the water tank.

[0013] The slurry supply mechanism includes a slurry pump, a slurry pipe, and a slurry tank. The slurry pump and the slurry tank are both fixedly installed on a mobile trolley, and the slurry pipe is located between the input end of the slurry pump and the slurry tank.

[0014] The mud tank is equipped with a first stirring paddle, which is connected to the moving wheels of the mobile trolley via a belt pulley transmission assembly.

[0015] The movable plate is provided with a second limiting rod and a crossbeam plate on its front side. The second limiting rod is located between the upper extension plate and the lower extension plate in the same group. The crossbeam plate is slidably sleeved on the two second limiting rods. A guide post located on the rear side of the crossbeam plate is rotatably connected between the two upper extension plates. A pull rope passing around the guide post is fixedly connected between the crossbeam plate and the movable plate. A smoothing mechanism is provided on the crossbeam plate. The smoothing mechanism includes a second servo motor and a scraper. The second servo motor is fixedly connected to the upper surface of the crossbeam plate. The scraper is located below the crossbeam plate and is fixedly connected to the output end of the second servo motor.

[0016] The automated repair device for spillway cracks provided by this utility model has an ingenious structure, is easy to use, and has low maintenance costs, which can significantly improve the repair quality and efficiency of spillway cracks.

[0017] Compared with the prior art, the specific advantages of this utility model are as follows:

[0018] 1. This utility model, by setting up a crack repair mechanism, a water supply mechanism, a grout supply mechanism, and a hot air blower, uses a drill bit to drill into the crack, and then sprays water, hot air, and cement grout sequentially through a through hole. The high-pressure water flow washes the inside of the crack, causing the corroded layer inside the crack to fall off. The hot air blown into the crack dries the inside of the crack. Finally, the cement grout sprayed through the through hole fills and repairs the crack, thus realizing the automated repair of spillway cracks. The repair process is time-saving and labor-saving, effectively improving repair efficiency and repair quality.

[0019] 2. This utility model, by setting a first stirring paddle and a belt drive assembly, utilizes the rolling of the moving wheel to drive the first stirring paddle to rotate, thereby stirring the cement slurry in the mud tank, ensuring the fluidity and uniformity of the cement slurry, which helps in subsequent crack repair work.

[0020] 3. This utility model, by setting a second stirring paddle, a first bevel gear, and a second bevel gear, utilizes a power motor to drive the conveying pipe and drill bit to rotate, while also driving the first bevel gear to rotate. Through the meshing of the first and second bevel gears, the second stirring paddle can be driven to rotate, thereby re-stirring the cement slurry entering the transfer chamber. This further ensures the fluidity and mixing uniformity of the cement slurry. The uniformly mixed cement slurry has a more even distribution of internal components, which can better exert the bonding effect of cement, thereby improving the overall compressive strength and tensile strength. Furthermore, the uniform cement slurry can better control the heat of hydration, reduce temperature stress, and thus reduce the possibility of crack formation.

[0021] 4. This utility model, by setting up a smoothing mechanism, after the crack filling and repair is completed, the movable plate will drive the crack repair mechanism to move upward. At this time, the pull rope will release the limit on the crossbeam plate. Under the action of gravity, the crossbeam plate will slide downward along the second limit rod. Finally, the second servo motor drives the scraper to rotate, which can smooth the surface of the crack repair area, thereby reducing the impact and adhesion of water flow at this point when the spillway discharges floodwater, effectively preventing the crack from recurring, and thus extending the service life of the spillway. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0023] Figure 2 for Figure 1Enlarged view of part A in the image.

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the medium crack repair mechanism.

[0025] Figure 4 for Figure 1 A schematic diagram of the connection structure between the movable plate and the smoothing mechanism.

[0026] Figure 5 for Figure 1 Cross-sectional view of the transit warehouse.

[0027] Figure 6 for Figure 5 Enlarged view of part B in the image.

[0028] Figure 7 for Figure 1 Cross-sectional view of the mud tank.

[0029] In the diagram: 1. Mobile trolley; 2. Upper extension plate; 3. Lower extension plate; 4. Movable plate; 5. Water supply mechanism; 6. Slurry supply mechanism; 7. Hot air blower; 8. Drill bit; 9. Conveying pipeline; 10. Transfer chamber; 11. Water delivery telescopic hose; 12. Slurry delivery telescopic hose; 13. Air supply telescopic hose; 14. Through hole; 15. Adjusting screw; 16. First limit rod; 17. First servo motor; 18. Power motor; 19. First gear; 20. Second... 21. Gear; 22. Limiting plate; 23. Ball bearing; 24. Water pump; 25. Pumping pipe; 26. Water tank; 27. Slurry pump; 28. Slurry pipe; 29. ​​Slurry tank; 30. First stirring paddle; 31. Belt pulley drive assembly; 32. Moving wheel; 33. Second stirring paddle; 34. First bevel gear; 35. Second bevel gear; 36. Second limiting rod; 37. Crossbeam plate; 38. Guide column; 39. Pull rope; 40. Second servo motor; 41. Scraper. Detailed Implementation

[0030] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific working processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0031] like Figure 1-7As shown, the automated spillway crack repair device of this utility model includes a mobile trolley 1. An upper extension plate 2 and a lower extension plate 3 are provided on the left end of the mobile trolley 1. Two sets of upper extension plates 2 and lower extension plates 3 are arranged vertically, and a movable plate 4 capable of vertical lifting is provided between the upper extension plates 2 and lower extension plates 3 in the same set. A crack repair mechanism is provided on the surface of the movable plate 4. A water supply mechanism 5, a slurry supply mechanism 6, and a hot air blower 7 are respectively provided on the surface of the mobile trolley 1. The crack repair mechanism includes a drill bit 8, a conveying pipe 9, a transfer chamber 10, a water supply telescopic hose 11, a slurry supply telescopic hose 12, and an air supply telescopic hose 13. The conveying pipe 9 is rotatably connected to the middle of the movable plate 4. Through holes 14 are provided on both sides of the lower end of the conveying pipe 9. The drill bit 8 is fixedly connected to the lower end of the conveying pipe 9. The transfer chamber 10 is rotatably installed on the upper end of the conveying pipe 9, and the lower end of the transfer chamber 10 is connected to the conveying pipe 9. The water supply telescopic hose 11, the slurry supply telescopic hose 12, and the air supply telescopic hose 13 are all connected. Both hose 12 and air supply telescopic hose 13 are connected to the upper end of the transfer chamber 10. The upper end of water supply telescopic hose 11 is connected to the output end of water supply mechanism 5, the upper end of grout supply telescopic hose 12 is connected to the output end of grout supply mechanism 6, and the upper end of air supply telescopic hose 13 is connected to the output end of hot air blower 7. By setting up a crack repair mechanism, water supply mechanism 5, grout supply mechanism 6, and hot air blower 7, a drill bit 8 is used to drill into the crack, and then water, hot air, and cement are sprayed out sequentially through through hole 14. The process involves flushing the cracks with high-pressure water flow to remove the corroded layer, removing dust, loose particles, and other impurities, ensuring the repair material adheres closely to the crack walls and improving repair effectiveness. Hot air is then blown into the cracks to dry them. This drying process helps the cement grout solidify quickly, shortening repair time and preventing residual moisture from diluting the grout and affecting its hardening, ultimately impacting repair quality. Furthermore, surface moisture affects the adhesion of the repair material; air drying ensures a dry surface, improving bonding and repair effectiveness. Finally, cement grout is sprayed through the through-hole 14 to fill and repair the cracks, achieving automated repair of spillway cracks. This process is time-saving, labor-saving, and effectively improves repair efficiency and quality.

[0032] An adjusting screw 15 and a first limiting rod 16 are also provided between the upper extension plate 2 and the lower extension plate 3. The adjusting screw 15 is rotatably connected between one set of upper extension plates 2 and lower extension plates 3, and the first limiting rod 16 is fixedly connected between the other set of upper extension plates 2 and lower extension plates 3. A first servo motor 17 is fixedly connected to the upper surface of the upper extension plate 2 where the adjusting screw 15 is installed, and the adjusting screw 15 is driven by the output end of the first servo motor 17. One end of the movable plate 4 is threadedly connected to the adjusting screw 15, and the other end of the movable plate 4 is slidably connected to the first limiting rod 16. By setting the adjusting screw 15, the first limiting rod 16, and the first servo motor 17, the first servo motor 17 drives the adjusting screw 15 to rotate, and the first limiting rod 16 limits the movable plate 4, thereby adjusting the height of the movable plate 4 and enabling the movable plate 4 to move up and down.

[0033] The surface of the movable plate 4 is provided with a power mechanism for driving the conveying pipe 9 to rotate. The power mechanism includes a power motor 18, a first gear 19, and a second gear 20. The power motor 18 is fixedly connected to the surface of the movable plate 4, the first gear 19 is fixedly connected to the outer surface of the output end of the power motor 18, and the second gear 20 is fixedly connected to the outer surface of the conveying pipe 9. The first gear 19 and the second gear 20 mesh with each other. By setting up the power mechanism, the power motor 18 drives the first gear 19 to rotate. With the first gear 19 and the second gear 20 meshing with each other, the conveying pipe 9 can be driven to rotate, which in turn drives the drill bit 8 to rotate. The rotation of the drill bit 8 can break the crack and extend the conveying pipe 9 into the crack.

[0034] Two limiting discs 21 are fixedly connected to the outer surface of the conveying pipe 9, and multiple balls 22 that abut against the movable plate 4 are embedded on the opposite surfaces of the two limiting discs 21. By setting two limiting discs 21 and multiple balls 22, the two limiting discs 21 can limit the conveying pipe 9, and the multiple balls 22 can reduce the friction between the limiting discs 21 and the movable plate 4 by rolling, thereby facilitating the rotation of the conveying pipe 9.

[0035] The water supply mechanism 5 includes a water pump 23, a water pumping pipe 24, and a water tank 25. The water pump 23 and the water tank 25 are both fixedly installed on the mobile trolley 1. The water pumping pipe 24 is located between the input end of the water pump 23 and the water tank 25. By setting up the water supply mechanism 5, the water in the water tank 25 can be transported into the water delivery telescopic hose 11 through the water pumping pipe 24 when the water pump 23 is working.

[0036] The slurry supply mechanism 6 includes a slurry pump 26, a mud pipe 27, and a mud tank 28. The slurry pump 26 and the mud tank 28 are both fixedly installed on the mobile trolley 1. The mud pipe 27 is located between the input end of the slurry pump 26 and the mud tank 28. By setting up the slurry supply mechanism 6 and using the operation of the slurry pump 26, the cement slurry in the mud tank 28 can be transported through the mud pipe 27 into the slurry delivery telescopic hose 12.

[0037] In practical applications, the water supply mechanism 5 can also be used to flush the transfer chamber 10 and the conveying pipeline 9, thereby preventing the conveying pipeline 9 and the transfer chamber 10 from being blocked by mud.

[0038] The mud tank 28 is equipped with a first stirring paddle 29, which is connected to the moving wheel 31 of the mobile trolley 1 via a belt pulley transmission assembly 30. By setting the first stirring paddle 29 and the belt pulley transmission assembly 30, when the mobile trolley is moving, the rolling of the moving wheel 31 can drive the first stirring paddle 29 to rotate, thereby stirring the cement slurry in the mud tank 28, ensuring the fluidity and uniformity of the cement slurry, which is helpful for subsequent crack repair work.

[0039] In practical applications, servo motors and transmission components can also be used to drive the moving wheels 31 to rotate, thereby facilitating the movement of the entire mobile cart 1.

[0040] The transfer chamber 10 is internally connected to a second stirring paddle 32, and a first bevel gear 33 is fixedly connected to the upper end of the output end of the power motor 18. A second bevel gear 34 is fixedly connected to the end of the second stirring paddle 32, and the first bevel gear 33 and the second bevel gear 34 mesh with each other. By setting the second stirring paddle 32, the first bevel gear 33 and the second bevel gear 34, the power motor 18 drives the conveying pipe 9 and the drill bit 8 to rotate, and at the same time drives the first bevel gear 33 to rotate. Through the meshing of the first bevel gear 33 and the second bevel gear 34, the second stirring paddle 32 can be driven to rotate, thereby re-stirring the cement slurry entering the transfer chamber 10, which further ensures the fluidity and mixing uniformity of the cement slurry. The uniformly mixed cement slurry has a more uniform internal component distribution, which can better exert the bonding effect of cement, thereby improving the overall compressive strength and tensile strength. In addition, the uniform cement slurry can better control the heat of hydration, reduce temperature stress, and thus reduce the possibility of crack formation.

[0041] Furthermore, two second limiting rods 35 are fixedly connected between the upper extension plate 2 and the lower extension plate 3, and a crossbeam plate 36 is slidably connected to the outer surface of the two second limiting rods 35. A guide post 37 is rotatably connected between the two upper extension plates 2. A pull rope 38, passing around the guide post 37, is fixedly connected between the crossbeam plate 36 and the movable plate 4. A smoothing mechanism is fixedly connected to the surface of the crossbeam plate 36. The smoothing mechanism includes a second servo motor 39 and a scraper 40. The second servo motor 39 is fixedly connected to the upper surface of the crossbeam plate 36, and the scraper 40 is fixedly connected to the second servo motor 39. At the output end, by setting a smoothing mechanism, after the crack filling and repair is completed, the movable plate 4 will drive the crack repair mechanism to move upward. At this time, the pull rope 38 will release the limit on the crossbeam plate 36. Under the action of gravity, the crossbeam plate 36 will slide downward along the second limit rod 35. When the scraper 40 contacts the surface of the spillway, the second servo motor 39 will drive the scraper 40 to rotate, which can smooth the surface of the crack repair, thereby reducing the impact and adhesion of the water flow at this point when the spillway discharges floodwater, effectively preventing the crack from recurring, and thus extending the service life of the spillway.

[0042] A repair method for an automated spillway crack repair device includes the following steps:

[0043] S1, the movable plate 4 slowly moves down, and in conjunction with the rotation of the conveying pipe 9, the drill bit 8 drills into the crack in the spillway;

[0044] S2, water is injected into the water supply telescopic hose 11 through the water supply mechanism 5, so that the water flows from the transfer chamber 10 through the conveying pipe 9 and finally sprays out from the through hole 14, thereby flushing the inside of the crack.

[0045] S3, hot air is introduced into the air supply telescopic hose 13 by the hot air blower 7, so that the hot air is sprayed out from the transfer chamber 10 through the conveying pipe 9 and finally out of the through hole 14, thereby drying the inside of the crack.

[0046] S4, cement slurry is injected into the slurry delivery telescopic hose 12 through the slurry supply mechanism 6, so that the cement slurry is sprayed out from the transfer chamber 10 through the delivery pipe 9 and finally out of the through hole 14, thereby filling the crack with cement slurry; if necessary, the surface is smoothed by the scraper 40 of the smoothing mechanism.

[0047] S5. After the crack filling is completed, the movable plate 4 is moved upward to remove the conveying pipe 9 and the drill bit 8 from the inside of the crack.

[0048] It should be noted that in the description of this utility model, terms such as "front", "rear", "left", "right", "vertical", "horizontal", "inner", and "outer" indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. An automated repair device for spillway cracks, comprising a mobile trolley (1), characterized in that: The front end of the mobile trolley (1) is provided with an upper extension plate (2) and a lower extension plate (3). The upper extension plate (2) and the lower extension plate (3) are provided in two sets corresponding to each other. A vertically lifting movable plate (4) is provided between the upper extension plate (2) and the lower extension plate (3) in the same set. A crack repair mechanism is provided on the movable plate (4). The mobile trolley (1) is also provided with a water supply mechanism (5), a slurry supply mechanism (6) and a hot air blower (7). The crack repair mechanism includes a drill bit (8), a delivery pipe (9), a transfer chamber (10), a water delivery telescopic hose (11), a slurry delivery telescopic hose (12), and an air delivery telescopic hose (13). The delivery pipe (9) is rotatably connected to the middle of the movable plate (4), and the top of the delivery pipe (9) is rotatably connected to the transfer chamber (10). A through hole (14) is opened at the bottom of the side wall of the delivery pipe (9), and the lower end of the delivery pipe (9) is fixedly connected to the drill bit (8). The output end of the water supply mechanism (5) is connected to the input end of the water delivery telescopic hose (11), the output end of the slurry supply mechanism (6) is connected to the input end of the slurry delivery telescopic hose (12), the output end of the hot air blower (7) is connected to the input end of the air delivery telescopic hose (13), and the output ends of the water delivery telescopic hose (11), the slurry delivery telescopic hose (12), and the air delivery telescopic hose (13) are all connected to the top inlet of the transfer chamber (10).

2. The automated repair device for spillway cracks according to claim 1, characterized in that: One end of the movable plate (4) is threadedly connected to the adjusting screw (15), and the other end is slidably connected to the first limiting rod (16); the adjusting screw (15) is set between a set of upper extension plates (2) and lower extension plates (3), and the first limiting rod (16) is set between another set of upper extension plates (2) and lower extension plates (3); wherein, the top of the adjusting screw (15) is drivenly connected to the output end of the first servo motor (17), and the first servo motor (17) is fixedly set on the surface of the upper extension plate (2) where the adjusting screw (15) is located.

3. The automated repair device for spillway cracks according to claim 1, characterized in that: The surface of the movable plate (4) is provided with a power mechanism for driving the conveying pipe (9) to rotate. The power mechanism includes a power motor (18), a first gear (19) and a second gear (20). The power motor (18) is fixedly mounted on the movable plate (4). The first gear (19) is connected to the output end of the power motor (18). The second gear (20) is sleeved on the conveying pipe (9), and the first gear (19) and the second gear (20) mesh with each other.

4. The automated repair device for spillway cracks according to claim 3, characterized in that: A pair of limiting discs (21) are fitted onto the conveying pipe (9). The limiting discs (21) are respectively set on both sides of the movable plate (4), and the limiting discs (21) are embedded with balls (22) that are in contact with the surface of the movable plate (4).

5. The automated repair device for spillway cracks according to claim 3, characterized in that: The transfer chamber (10) is equipped with a second stirring paddle (32), and a first bevel gear (33) is fixedly connected to the upper end of the output end of the power motor (18), and a second bevel gear (34) is fixedly connected to the end of the second stirring paddle (32), and the first bevel gear (33) and the second bevel gear (34) mesh with each other.

6. The automated repair device for spillway cracks according to claim 1, characterized in that: The water supply mechanism (5) includes a water pump (23), a water pumping pipe (24) and a water tank (25). The water pump (23) and the water tank (25) are both fixedly installed on a mobile cart (1). The water pumping pipe (24) is located between the input end of the water pump (23) and the water tank (25).

7. The automated repair device for spillway cracks according to claim 1, characterized in that: The slurry supply mechanism (6) includes a slurry pump (26), a mud pipe (27), and a mud tank (28). The slurry pump (26) and the mud tank (28) are both fixedly installed on a mobile trolley (1). The mud pipe (27) is located between the input end of the slurry pump (26) and the mud tank (28).

8. The automated repair device for spillway cracks according to claim 7, characterized in that: The mud tank (28) is equipped with a first stirring paddle (29), and the first stirring paddle (29) is connected to the moving wheel (31) of the mobile cart (1) via a belt pulley drive assembly (30).

9. The automated repair device for spillway cracks according to claim 1, characterized in that: The movable plate (4) is provided with a second limiting rod (35) and a crossbeam plate (36) on its front side. The second limiting rod (35) is located between the upper extension plate (2) and the lower extension plate (3) in the same group. The crossbeam plate (36) is slidably sleeved on the two second limiting rods (35). A guide post (37) located on the rear side of the crossbeam plate (36) is also rotatably connected between the two upper extension plates (2). A pull rope (38) that passes around the guide post (37) is fixedly connected between the crossbeam plate (36) and the movable plate (4). A smoothing mechanism is provided on the crossbeam plate (36). The smoothing mechanism includes a second servo motor (39) and a scraper (40). The second servo motor (39) is fixedly connected to the upper surface of the crossbeam plate (36). The scraper (40) is located below the crossbeam plate (36) and is fixedly connected to the output end of the second servo motor (39).

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