A pothole cleaning device for road repair

Abstract

This invention belongs to the field of municipal road technology, specifically a pothole cleaning device for road surface repair, including a protective shell. Movable wheels are installed on both the left and right sides of the protective shell, and a pusher is installed on the right side of the protective shell. A first connecting frame is provided inside the protective shell, and four first support plates are installed on the outer arc surface of the first connecting frame. When cleaning potholes, this pothole cleaning device offers significant structural advantages: after filling with repair material, the vehicle load can be transferred downwards along the two conical surfaces, effectively reducing stress concentration at the edge of the repair area and preventing cracking and peeling of the repair layer edge under long-term vehicle pressure. Simultaneously, the two-stage contraction conical surfaces allow the repair material to form a layered compaction state during filling, increasing the internal density of the material, reducing subsequent settlement and hollowing problems, and thus significantly improving the overall stability and service life of the repaired road surface.

Description

Technical Field

[0001] This invention belongs to the field of municipal road technology, specifically a pothole cleaning device for road surface repair. Background Technology

[0002] Currently, the common method for repairing road potholes is to directly cut them off, clean up the debris, and then fill them with repair material. However, most existing potholes are straight-walled or single-stage cutting structures. Under long-term vehicle pressure, the vehicle load tends to concentrate at the edge of the repair area, leading to cracking, peeling, and further damage at the repair layer edge. At the same time, the stress transmission within the existing pothole repair area is relatively concentrated, and the repair material is prone to local loosening, settlement, and hollowing, affecting the overall stability and service life of the road surface after repair. Therefore, a pothole cleaning device for road repair is needed. Summary of the Invention

[0003] To overcome the shortcomings of existing technologies, this invention proposes a pothole cleaning device for road repair. This invention primarily addresses the problem that existing pothole cleaning methods, which use a direct, straight-walled structure for edge removal, result in concentrated stress distribution within the repair area, leading to localized loosening, settlement, and hollowing of the repair material.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a pothole cleaning device for road repair, including a protective shell; movable wheels are installed on both the left and right sides of the protective shell, a pusher is installed on the right side of the protective shell, a first connecting frame is provided inside the protective shell, four first support plates are installed on the outer arc surface of the first connecting frame, a first electric push rod is installed on the left and right first support plates, the first electric push rod is installed on the inner wall of the protective shell, a first guide rod is installed on the front and rear first support plates, a first guide sleeve is slidably connected to the first guide rod, the first guide sleeve is connected through the protective shell, a first motor is installed inside the protective shell, a buffer connecting mechanism is fixedly connected to the output shaft of the first motor, two second connecting frames are installed below the buffer connecting mechanism, a third motor is installed in the second connecting frames, a first gear is installed on the output shaft of the third motor, a second gear is meshed with the first gear, a rotating shaft is installed below the second gear, the rotating shaft is rotatably connected in the second connecting frames, a grinding wheel is installed at the bottom end of the rotating shaft, the grinding wheel includes a first grinding part and a second grinding part.

[0005] As a further description of the above technical solution: the grinding wheel also includes a platform grinding section, which is disposed on the first grinding section.

[0006] As a further description of the above technical solution: a bearing is installed on the outer arc surface of the first connecting frame, two second support plates are installed on the outside of the bearing, a fixing rod is installed under the second support plate, and the fixing rod is installed on the buffer connecting mechanism.

[0007] As a further description of the above technical solution: the buffer connection mechanism includes a mounting plate, which is mounted outside the output shaft of the first motor and at the bottom end of the fixed rod. Four second guide sleeves are connected through the mounting plate. A second guide rod is slidably connected inside the second guide sleeve. A limit plate is installed at the top end of the second guide rod, and an intermediate plate is installed at the bottom end of the second guide rod. A spring is sleeved on the second guide rod, and both ends of the spring are fixedly connected to the second guide sleeve and the intermediate plate, respectively. The intermediate plate is located on the second connecting frame.

[0008] As a further description of the above technical solution: two sliding holes are provided on the intermediate plate, and a sliding seat is slidably connected in the sliding holes. The sliding seat is installed on the second connecting frame. A first lead screw is threadedly connected in the sliding seat. The opposite faces of the two first lead screws are respectively fixedly connected to the two output shafts of the second motor. The second motor is installed on the side of the intermediate plate. A third guide rod is slidably connected in the sliding seat. A fixing plate is installed at the end of the third guide rod. The fixing plate is installed on the side of the intermediate plate.

[0009] As a further description of the above technical solution: a clamping assembly is installed on the mounting plate, the clamping assembly is used to press the intermediate plate, the clamping assembly includes two second electric push rods that are connected through the mounting plate, and a pressure frame is installed at the bottom end of the second electric push rods.

[0010] As a further description of the above technical solution: a vertical moving mechanism is fixedly connected to the back of the mounting plate, a horizontal plate is installed on the back of the vertical moving mechanism, an assembly hole is opened on the horizontal plate, a bolt is provided in one of the assembly holes, and a collection frame located under the horizontal plate is externally threaded to the bolt. A pick-up and put-down door is hinged to the back of the protective shell at the position corresponding to the collection frame.

[0011] As a further description of the above technical solution: the vertical moving mechanism includes a guide frame installed outside the mounting plate, a slider slidably connected inside the guide frame, the slider being fixedly connected to the horizontal plate, a second lead screw being threaded inside the slider, a fourth motor being installed at the top of the second lead screw, and the fourth motor being installed on the inner wall of the guide frame.

[0012] As a further description of the above technical solution: two dust collection components are installed on the top wall of the inner shell, and a dust collection hood is connected to the bottom of the dust collection components. An installation block is installed on the side of the dust collection hood, and the installation block is installed on the inner wall of the protective shell.

[0013] As a further description of the above technical solution: two vision cameras are installed on the inner top wall of the protective shell, and the vision cameras are used to photograph the road surface conditions below the protective shell.

[0014] The beneficial effects of this invention are as follows: 1. The pothole cleaning device for road repair in this invention, when cleaning potholes, coordinates the operation of the first motor, the third motor, and the first electric push rod through a controller: the first electric push rod drives the first connecting frame and the first motor to move downwards; at the same time, the third motor drives the second gear, the rotating shaft, and the grinding wheel to rotate through the first gear, and the grinding wheel rotates synchronously under the drive of the first motor, thereby grinding the inner wall of the pothole. After the first electric push rod pushes the grinding wheel to the corresponding position, the pothole will be gradually ground to form an upper large conical surface and a lower small conical surface, forming a two-stage conical pit structure that gradually shrinks from top to bottom. This structure has significant advantages: after filling the repair material, the vehicle load can be transferred downwards along the two conical surfaces step by step, which can effectively reduce the stress concentration at the edge of the repair area and prevent the repair layer edge from cracking and peeling under long-term vehicle rolling; at the same time, the two-stage shrinking conical surface can also make the repair material form a layered compaction state during filling, improve the internal density of the material, reduce the problems of later settlement and hollowing, and thus greatly improve the overall stability and service life of the road pothole repair.

[0015] 2. The pothole cleaning device for road repair in this invention, by setting up a platform grinding section, grinds the potholes with rotating grinding wheels, forming an upper stepped platform surface combined with a two-section conical pit structure that gradually narrows from top to bottom. This structure has multiple significant advantages: after the repair filler is compacted, the top is embedded inside the step, which can effectively prevent arching, slippage, and edge lifting problems when the wheels are driven over it, eliminating the cracking and lifting of the repair layer edge from the root; the stepped platform can prevent road surface water from seeping down along the cracks in the conical wall, preventing water erosion and hollowing out the road base layer, and greatly extending the service life of the repair area; during construction, the top surface of the filler can be flush with the top surface of the step, which can significantly improve the smoothness of the road surface and eliminate the bumpy feeling of driving; at the same time, the stepped structure forms two bonding surfaces, which greatly improves the bonding strength compared with a single conical surface, further enhancing the overall stability of the repair area.

[0016] 3. In this invention, the pothole cleaning device for road repair coordinates the operation of the fan assembly, the first motor, the third motor, and the first electric push rod through a controller: the first motor drives the mounting plate, the intermediate plate, and the two grinding wheels to rotate; the first electric push rod synchronously drives the first connecting frame and the first motor to move downwards, so that the grinding wheels rotate under the action of the third motor while revolving with the first motor, thereby precisely grinding the inner wall of the pothole. When the first electric push rod extends to the specified length, the grinding wheel is blocked by the edge of the pothole when it feeds downwards, causing a slight up-and-down sway. At this time, the first spring is compressed, and the mounting plate... As the distance between the mounting plate and the intermediate plate decreases, the spring force acts on the intermediate plate and the grinding wheel, pushing them slowly downwards to adapt to the depth of the pit. After the grinding wheel runs smoothly, the controller activates the second electric push rod, which drives the pressure frame to push the intermediate plate and the grinding wheel downwards, keeping the intermediate plate and the mounting plate relatively fixed. The grinding wheel is then pushed to the specified depth and maintains stable rotation. This process, through the cooperation of spring buffer and precise positioning of the electric push rod, not only avoids damage to the grinding wheel due to hard contact, but also ensures the safety and reliability of the grinding operation on the inner wall of the pit, effectively improving the adaptability and service life of the cleaning device. Attached Figure Description

[0017] The invention will now be further described with reference to the accompanying drawings.

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a side view of the three-dimensional structure of the present invention; Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention; Figure 4 This is a three-dimensional bottom-view cross-sectional structural diagram of the present invention; Figure 5 This is a three-dimensional structural schematic diagram of the first connecting frame in this invention; Figure 6 This is a three-dimensional cross-sectional structural diagram of the first connecting frame in this invention; Figure 7 This is a cross-sectional structural diagram of the first connecting frame in this invention; Figure 8 This is a three-dimensional structural schematic diagram of the clamping component in this invention; Figure 9 This is a three-dimensional structural diagram of the sliding seat in this invention; Figure 10 This is a three-dimensional cross-sectional structural diagram of the second connecting frame in this invention; Figure 11 This is a side view of the three-dimensional structure of the first connecting frame in this invention; Figure 12 This is a three-dimensional cross-sectional structural diagram of the vertical moving mechanism in this invention.

[0019] In the diagram: 1. Protective shell; 2. Moving wheel; 3. Push handle; 4. First connecting frame; 5. First support plate; 6. First electric push rod; 7. First guide rod; 8. First guide sleeve; 9. Buffer connecting mechanism; 901. Mounting plate; 902. Second guide sleeve; 903. Second guide rod; 904. Spring; 905. Limiting plate; 906. Intermediate plate; 907. Sliding hole; 908. Sliding seat; 909. First lead screw; 910. Second motor; 911. Third guide rod; 912. Fixing plate; 10. Second connecting frame; 11. Third motor; 12. First gear; 13. Second gear; 14. 15. Rotary shaft; 15. Grinding wheel; 151. First grinding section; 152. Second grinding section; 153. Platform grinding section; 16. Bearing; 17. Second support plate; 18. Fixed rod; 19. Clamping assembly; 191. Second electric push rod; 192. Pressure frame; 20. First motor; 21. Vertical moving mechanism; 211. Guide frame; 212. Slider; 213. Second lead screw; 214. Fourth motor; 22. Horizontal plate; 23. Assembly hole; 24. Bolt; 25. Collection frame; 26. Vision camera; 27. Dust hood; 28. Mounting block; 29. ​​Dust collection assembly; 30. Pick-up and drop-off door. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1: like Figures 1 to 12 As shown, a pothole cleaning device for road repair includes a protective shell 1; movable wheels 2 are installed on both the left and right sides of the protective shell 1, a pusher 3 is installed on the right side of the protective shell 1, a first connecting frame 4 is provided inside the protective shell 1, four first support plates 5 are installed on the outer arc surface of the first connecting frame 4, first electric push rods 6 are installed on the left and right first support plates 5, the first electric push rods 6 are installed on the inner wall of the protective shell 1, first guide rods 7 are installed on the front and rear first support plates 5, first guide sleeves 8 are slidably connected to the first guide rods 7, and the first guide sleeves 8 are connected through the protective shell 1. A first motor 20 is installed inside. The output shaft of the first motor 20 is fixedly connected to a buffer connection mechanism 9. Two second connection frames 10 are installed below the buffer connection mechanism 9. A third motor 11 is installed inside the second connection frame 10. A first gear 12 is installed on the output shaft of the third motor 11. A second gear 13 is externally meshed with the first gear 12. A rotating shaft 14 is installed below the second gear 13. The rotating shaft 14 is rotatably connected inside the second connection frame 10. A grinding wheel 15 is installed at the bottom end of the rotating shaft 14. The grinding wheel 15 includes a first grinding part 151 and a second grinding part 152.

[0022] When cleaning the pits and depressions, the controller operates the first motor 20, the third motor 11, and the first electric push rod 6. The first electric push rod 6 drives the first connecting frame 4 and the first motor 20 to move downwards. At the same time, the third motor 11 drives the second gear 13, the rotating shaft 14, and the grinding wheel 15 to rotate via the first gear 12. The grinding wheel 15 is also driven by the first motor 20 to revolve around the center of gravity, thereby grinding the inner wall of the pit and depression until the first electric push rod 6 drives the grinding wheel 15 to move downwards to the corresponding position. At this point, the grinding wheel 15 gradually grinds out the lower small circle from the pit and depression. The first layer has a conical surface, followed by a large conical surface in the middle, creating a two-section conical pit structure that gradually narrows from top to bottom. After the repair material is filled, the vehicle load can be transferred downwards along the first and second conical surfaces, thereby reducing stress concentration at the edges of the repair area and preventing cracking and peeling of the repair layer edges under long-term vehicle pressure. At the same time, the two-section shrinking conical structure allows the repair material to form a layered compaction state during the filling process, improving the internal density of the repair material, reducing later settlement and hollowing, and thus improving the overall stability and service life of the road surface after pothole repair.

[0023] like Figure 7 As shown, the grinding wheel 15 also includes a platform grinding section 153, which is disposed on the first grinding section 151.

[0024] The platform grinding section 153 is used to grind the potholes with rotating grinding wheels 15, forming an upper stepped platform surface and a two-section conical pit structure that gradually decreases in size from top to bottom. After the filler is compacted in the pothole, the top is embedded in the step. The tires are less likely to arch, slip, or lift when driven over, and the edges are prevented from cracking and peeling. The step prevents water from seeping down the road surface along the gaps in the conical wall, avoiding water erosion and hollowing out the base layer, and greatly extending the repair life. During construction, the top surface of the filler can be flush with the top surface of the step, resulting in a smoother road surface and a bump-free ride. The step forms two bonding surfaces, and the bonding strength is much higher than that of a single conical surface.

[0025] like Figure 5 As shown, a bearing 16 is installed on the outer arc surface of the first connecting frame 4, and two second support plates 17 are installed on the outside of the bearing 16. A fixing rod 18 is installed under the second support plate 17 and is installed on the buffer connecting mechanism 9.

[0026] The bearing 16 is used so that the second support plate 17 and the fixed rod 18 can rotate with the buffer connection mechanism 9, and increase the support strength of the grinding wheel 15 below the buffer connection mechanism 9. This prevents the grinding wheel 15 from tilting upward due to the pressure of the inner wall of the pit, and ensures that the grinding wheel 15 can perform the grinding process of the pit stably and accurately.

[0027] Example 2: like Figures 6 to 7As shown, the buffer connection mechanism 9 includes a mounting plate 901, which is mounted outside the output shaft of the first motor 20 and at the bottom of the fixed rod 18. Four second guide sleeves 902 are connected through the mounting plate 901. A second guide rod 903 is slidably connected inside the second guide sleeve 902. A limit plate 905 is installed at the top of the second guide rod 903, and an intermediate plate 906 is installed at the bottom of the second guide rod 903. A spring 904 is sleeved on the second guide rod 903. The two ends of the spring 904 are fixedly connected to the second guide sleeve 902 and the intermediate plate 906, respectively. The intermediate plate 906 is located on the second connecting frame 10.

[0028] When the first electric push rod 6 extends to the specified length, the grinding wheel 15 gradually moves downward. As the downward feed speed of the grinding wheel 15 is blocked by the edge of the pit, the grinding wheel 15 will wobble up and down to a certain extent. At this time, the first spring 904 is compressed, which reduces the distance between the mounting plate 901 and the intermediate plate 906. The elastic force of the spring 904 acts on the intermediate plate 906 and the grinding wheel 15, causing the grinding wheel 15 to gradually move downward. This slow downward push applies a downward elastic force to the grinding wheel 15 while preventing the grinding wheel 15 from moving downward and getting stuck on the inner wall of the pit. This reduces excessive wear and the probability of jamming on the grinding wheel 15, thus ensuring the smooth grinding and cleaning process of the inner wall of the pit.

[0029] like Figures 5 to 7 As shown, two sliding holes 907 are provided on the intermediate plate 906. A sliding seat 908 is slidably connected in the sliding holes 907. The sliding seat 908 is installed on the second connecting frame 10. A first lead screw 909 is threadedly connected in the sliding seat 908. The opposite faces of the two first lead screws 909 are respectively fixedly connected to the two output shafts of the second motor 910. The second motor 910 is installed on the side of the intermediate plate 906. A third guide rod 911 is slidably connected in the sliding seat 908. A fixing plate 912 is installed at the end of the third guide rod 911. The fixing plate 912 is installed on the side of the intermediate plate 906.

[0030] When the size of the pit is large, the controller controls the second motor 910 to run, so that the second motor 910 controls the two sliding seats 908 to move away from each other through the lead screw, thereby increasing the distance between the two grinding wheels 15. When the two grinding wheels 15 are driven to rotate by the first motor 20, the rotation diameter increases, which can adapt to the grinding and cleaning of the inner wall of pits of different sizes, thus making the solution more flexible and applicable to a wider range.

[0031] like Figures 5 to 8 As shown, a clamping assembly 19 is installed on the mounting plate 901. The clamping assembly 19 is used to press the intermediate plate 906 against it. The clamping assembly 19 includes two second electric push rods 191 that are connected through the mounting plate 901. A pressure frame 192 is installed at the bottom end of the second electric push rods 191.

[0032] The controller operates the fan assembly, the first motor 20, the third motor 11, and the first electric push rod 6. This causes the first motor 20 to rotate the mounting plate 901, the intermediate plate 906, and the two grinding wheels 15. Simultaneously, the first electric push rod 6 moves the first connecting frame 4 and the first motor 20 downwards. This causes the two grinding wheels 15 to rotate on their own axes driven by the third motor 11, and to revolve around the center of the pit driven by the first motor 20. This allows the grinding wheels 15 to grind the inner walls of the pits. When the first electric push rod 6 extends to the specified length, the grinding wheels 15 gradually move downwards. Because the downward feed speed of the grinding wheels is blocked by the edges of the pits, the grinding wheels 15 experience a certain degree of up-and-down wobbling. When the first spring 904 is compressed, the distance between the mounting plate 901 and the intermediate plate 906 decreases. The elastic force of the spring 904 acts on the intermediate plate 906 and the grinding wheel 15, causing the grinding wheel 15 to gradually move downward. The grinding wheel 15 is slowly pushed downward. When the grinding wheel 15 is stable, the second electric push rod 191 is controlled, which drives the pressure frame 192 to push the intermediate plate 906 and the grinding wheel 15 downward. This keeps the intermediate plate 906 and the mounting plate 901 stable and pushes the grinding wheel 15 downward to the specified depth. The grinding wheel 15 can then slowly move to the specified depth and be fixed at the corresponding depth for rotation, thus ensuring the safety and reliability of the grinding process on the inner wall of the pit.

[0033] Example 3: like Figures 1 to 3 and Figure 11 As shown, a vertical moving mechanism 21 is fixedly connected to the back of the mounting plate 901. A horizontal plate 22 is installed on the back of the vertical moving mechanism 21. An assembly hole 23 is provided on the horizontal plate 22. A bolt 24 is provided in one of the assembly holes 23. A collection frame 25 located under the horizontal plate 22 is externally threaded onto the bolt 24. A pick-up and put-down door 30 is hinged to the back of the protective shell 1 at the position corresponding to the collection frame 25.

[0034] The model of the grinding wheel 15 can be changed according to the different platform steps, shallow conical surfaces, and deep conical surfaces of the road surface in the pothole. Then, after removing the corresponding bolts 24, a collection frame 25 of the corresponding size is placed under the horizontal plate 22, and then reassembled using bolts 24. This facilitates the adjustment of the size of the collection frame 25 to ensure that the collection frame 25 fits the inner wall of the pothole after grinding. After the grinding wheel 15 has finished grinding, the controller stops the third motor 11 and simultaneously controls the second motor 910 to rotate. The second motor 910 drives the first lead screw 909. The rotation causes the two sliding seats 908 to move closer to each other, thereby separating the two grinding wheels 15 from the inner wall of the pit. Then, the vertical moving mechanism 21 controls the collection frame 25 to move downward to the inner wall of the pit. Subsequently, the collection frame 25 is driven to rotate by the first motor 20, causing the collection frame 25 to rotate along the inner wall of the pit, collecting and gathering the residue on the side wall of the pit. This achieves the cleaning and collection of the residue on the inner wall of the pit, ensuring that the inner wall of the pit is clean after grinding, and ensuring the connection strength between the filler and the pit during subsequent repair.

[0035] like Figures 11 to 12 As shown, the vertical moving mechanism 21 includes a guide frame 211 mounted outside the mounting plate 901, a slider 212 slidably connected inside the guide frame 211, the slider 212 being fixedly connected to the horizontal plate 22, a second lead screw 213 being threaded inside the slider 212, a fourth motor 214 being mounted at the top of the second lead screw 213, and the fourth motor 214 being mounted on the inner wall of the guide frame 211.

[0036] The controller controls the second motor 910 to rotate, which in turn drives the first lead screw 909 to rotate. This causes the two sliding seats 908 to move closer to each other, thus separating the two grinding wheels 15 from the inner wall of the pit. Subsequently, the controller controls the fourth motor 214 to run, which in turn drives the second lead screw 213 to rotate. This causes the second lead screw 213 to move the slider 212 and the cross plate 22 downwards until the collection frame 25 is attached to the inner wall of the pit after grinding. This allows for stepless adjustment of the height of the collection frame 25, making it more flexible and convenient to use.

[0037] like Figures 1 to 4 As shown, two dust collection components 29 are installed on the inner top wall of the protective shell 1. A dust collection hood 27 is connected to the bottom of the dust collection components 29. An installation block 28 is installed on the side of the dust collection hood 27 and is installed on the inner wall of the protective shell 1.

[0038] During the grinding and cleaning of pits and depressions, the fan assembly is controlled by the controller. The fan assembly absorbs and processes the dust through the dust collection hood 27, thereby reducing the chance of dust escaping from the lower edge of the protective shell 1 and ensuring a clean and efficient grinding and cleaning process of the inner wall of the pits and depressions.

[0039] like Figures 1 to 4 As shown, two vision cameras 26 are installed on the inner top wall of the protective shell 1. The vision cameras 26 are used to capture the road surface conditions below the protective shell 1.

[0040] When cleaning potholes on the roadside, the protective shell 1 is first pushed to the upper side of the pothole using the pusher 3. At the same time, the visual camera 26 takes pictures of the pothole and analyzes the center position of the pothole. Then, the position of the protective shell 1 is adjusted to the center of the pothole. This ensures that the required grinding size of the road surface is more accurate when grinding and cleaning the pothole, and avoids the situation of wasting subsequent repair materials due to the large grinding size. This ensures that the subsequent repair process is more efficient and energy-saving.

[0041] When cleaning potholes on the roadside, the protective shell 1 is first pushed to the upper side of the pothole using the pusher 3. Simultaneously, the vision camera 26 captures images of the pothole, analyzing its center position. The protective shell 1 is then adjusted to the center of the pothole. The controller then operates the fan assembly, the first motor 20, the third motor 11, and the first electric push rod 6. This causes the first motor 20 to rotate the mounting plate 901, the intermediate plate 906, and the two grinding wheels 15. Simultaneously, the first electric push rod 6 moves the first connecting frame 4 and the first motor 20 downwards, causing the two grinding wheels 15 to rotate on their own axis driven by the third motor 11 and revolve around the center driven by the first motor 20. This allows the grinding wheels 15 to grind the inner wall of the pothole. When the first electric push rod 6 extends to the specified length, the grinding wheels 15 gradually move downwards, and the grinding... As the downward feed speed of the grinding wheel 15 is blocked by the edge of the pit, the grinding wheel 15 will wobble up and down to a certain extent. At this time, the first spring 904 is compressed, which reduces the distance between the mounting plate 901 and the intermediate plate 906. The elastic force of the spring 904 acts on the intermediate plate 906 and the grinding wheel 15, causing the grinding wheel 15 to gradually move downward. The grinding wheel 15 is slowly pushed downward. When the grinding wheel 15 is stable, the second electric push rod 191 is controlled, which drives the pressure frame 192 to push the intermediate plate 906 and the grinding wheel 15 downward. This keeps the intermediate plate 906 and the mounting plate 901 stable and pushes the grinding wheel 15 downward to the specified depth. The grinding wheel 15 then gradually grinds the pit to form a lower small conical surface, a middle large conical surface, and an upper platform stepped surface. During the grinding process, the fan assembly absorbs and treats the dust through the dust collection hood 27. After the grinding wheel 15 finishes grinding, the controller stops the third motor 11 and simultaneously controls the second motor 910 to rotate. The second motor 910 drives the first lead screw 909 to rotate, which in turn causes the two sliding seats 908 to move closer to each other, thus separating both grinding wheels 15 from the inner wall of the pit. Then, the controller controls the fourth motor 214 to run, which drives the second lead screw 213 to rotate. The second lead screw 213 then moves the slider 212 and the cross plate 22 downward until the collecting frame 25 is attached to the inner wall of the pit after grinding. Subsequently, the collection frame 25 is driven to rotate by the first motor 20, thereby causing the collection frame 25 to rotate along the inner wall of the pit, collecting and gathering the residue on the side wall of the pit. After the residue and debris in the pit are cleaned and collected by the collection frame 25, the first motor 20 is controlled to stop working, and the first electric push rod 6 is controlled to shorten, thereby causing the first electric push rod 6 to drive the first connecting frame 4 and the intermediate plate 906 to move upward. When the collection frame 25 and the grinding wheel 15 move to the upper side of the pit, the first electric push rod 6 is controlled to stop working, and the protective shell 1 is pushed away from the upper side of the pit by the pusher 3.

[0042] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A pothole cleaning device for road surface repair, comprising a protective shell (1); characterized in that: The protective shell (1) is equipped with movable wheels (2) on both the left and right sides. A pusher (3) is installed on the right side of the protective shell (1). A first connecting frame (4) is provided inside the protective shell (1). Four first support plates (5) are installed on the outer arc surface of the first connecting frame (4). A first electric push rod (6) is installed on the left and right first support plates (5). The first electric push rod (6) is installed on the inner wall of the protective shell (1). A first guide rod (7) is installed on the front and rear first support plates (5). A first guide sleeve (8) is slidably connected to the outside of the first guide rod (7). The first guide sleeve (8) is connected through the protective shell (1). A first motor (20) is installed inside the protective shell (1). A buffer connection mechanism (9) is fixedly connected to the output shaft of the first motor (20). Two second connecting frames (10) are installed under the buffer connecting mechanism (9). A third motor (11) is installed inside the second connecting frame (10). A first gear (12) is installed on the output shaft of the third motor (11). A second gear (13) meshes with the first gear (12). A rotating shaft (14) is installed under the second gear (13). The rotating shaft (14) is rotatably connected inside the second connecting frame (10). A grinding wheel (15) is installed at the bottom end of the rotating shaft (14). The grinding wheel (15) includes a first grinding part (151) and a second grinding part (152). The grinding wheel (15) is used to gradually grind the pit into a lower small conical surface and a middle large conical surface, so that the pit area forms a two-section conical pit structure that gradually shrinks from top to bottom. The first connecting frame (4) has a bearing (16) installed on its outer arc surface. Two second support plates (17) are installed on the outside of the bearing (16). A fixing rod (18) is installed under the second support plate (17). The fixing rod (18) is installed on the buffer connecting mechanism (9).

2. The pothole cleaning device for road repair according to claim 1, characterized in that: The grinding wheel (15) also includes a platform grinding section (153), which is disposed on the first grinding section (151).

3. The pothole cleaning device for road repair according to claim 2, characterized in that: The buffer connection mechanism (9) includes a mounting plate (901), which is mounted outside the output shaft of the first motor (20). The mounting plate (901) is mounted at the bottom end of the fixed rod (18). Four second guide sleeves (902) are connected through the mounting plate (901). A second guide rod (903) is slidably connected inside the second guide sleeve (902). A limit plate (905) is installed at the top end of the second guide rod (903). An intermediate plate (906) is installed at the bottom end of the second guide rod (903). A spring (904) is sleeved on the second guide rod (903). The two ends of the spring (904) are fixedly connected to the second guide sleeve (902) and the intermediate plate (906) respectively. The intermediate plate (906) is located on the second connecting frame (10).

4. A pothole cleaning device for road surface repair according to claim 3, characterized in that: Two sliding holes (907) are provided on the intermediate plate (906). A sliding seat (908) is slidably connected in the sliding hole (907). The sliding seat (908) is installed on the second connecting frame (10). A first lead screw (909) is threadedly connected in the sliding seat (908). The opposite faces of the two first lead screws (909) are respectively fixedly connected to the two output shafts of the second motor (910). The second motor (910) is installed on the side of the intermediate plate (906). A third guide rod (911) is slidably connected in the sliding seat (908). A fixing plate (912) is installed at the end of the third guide rod (911). The fixing plate (912) is installed on the side of the intermediate plate (906).

5. A pothole cleaning device for road repair according to claim 4, characterized in that: A clamping assembly (19) is installed on the mounting plate (901). The clamping assembly (19) is used to press the intermediate plate (906) against it. The clamping assembly (19) includes two second electric push rods (191) that are connected through the mounting plate (901). A pressure frame (192) is installed at the bottom end of the second electric push rods (191).

6. A pothole cleaning device for road surface repair according to claim 5, characterized in that: A vertical moving mechanism (21) is fixedly connected to the back of the mounting plate (901). A horizontal plate (22) is installed on the back of the vertical moving mechanism (21). An assembly hole (23) is provided on the horizontal plate (22). A bolt (24) is provided in one of the assembly holes (23). A collection frame (25) located under the horizontal plate (22) is externally threaded to the bolt (24). A pick-up and put-down door (30) is hinged to the back of the protective shell (1) at the position corresponding to the collection frame (25).

7. A pothole cleaning device for road surface repair according to claim 6, characterized in that: The vertical moving mechanism (21) includes a guide frame (211) installed outside the mounting plate (901), a slider (212) is slidably connected inside the guide frame (211), the slider (212) is fixedly connected to the horizontal plate (22), a second lead screw (213) is threaded inside the slider (212), a fourth motor (214) is installed at the top of the second lead screw (213), and the fourth motor (214) is installed on the inner wall of the guide frame (211).

8. A pothole cleaning device for road repair according to claim 7, characterized in that: Two dust collection components (29) are installed on the inner top wall of the protective shell (1). A dust collection hood (27) is connected to the bottom of the dust collection components (29). An installation block (28) is installed on the side of the dust collection hood (27). The installation block (28) is installed on the inner wall of the protective shell (1).

9. A pothole cleaning device for road repair according to claim 8, characterized in that: Two vision cameras (26) are installed on the inner top wall of the protective shell (1). The vision cameras (26) are used to photograph the road surface below the protective shell (1).

Images