A road surface repairing device and a road surface repairing method

Abstract

The application relates to a road surface repairing device and a road surface repairing method, which comprise a rack, a storage rack for placing a plurality of cold repairing material bags is arranged on the rack, a pushing and moving assembly for pushing and moving the cold repairing material bags to ascend one by one is arranged on the storage rack; a storage bin for storing cold repairing material is arranged on the rack, a feeding port and a discharging port are respectively arranged on the storage bin, a moving frame is arranged on the rack, a moving assembly for moving the cold repairing material bags to the feeding port one by one is arranged on the moving frame, a bag cutting assembly for cutting the cold repairing material bags is arranged on the rack, a storage assembly for clamping a plurality of empty cold repairing material bags is arranged on the rack, the storage assembly and the bag cutting assembly are located above the feeding port, and a flattening assembly is arranged on the rack and below the discharging port. The application can replace the mode that workers manually cut the cold repairing material bags and shovel the cold repairing material, reduces the work burden of the workers, and improves the work efficiency.

Description

[0001] This application relates to the field of road repair technology, and in particular to a road repair device and a road repair method. Background Technology

[0002] Asphalt pavement refers to various types of road surfaces constructed by incorporating road-grade asphalt materials into mineral materials. Asphalt binders enhance the ability of paving aggregates to resist damage from traffic and natural factors, resulting in a smooth, dust-free, impermeable, and durable surface. Therefore, asphalt pavement is one of the most widely used high-grade pavements in road construction. While the asphalt structural layer itself falls under the category of flexible pavements, its base layer can also utilize rigid cement concrete or semi-rigid hydraulic materials in addition to flexible materials. With the rapid development of highway construction, asphalt concrete has been widely used in expressway construction due to its excellent road performance and stable quality. However, after prolonged use, asphalt pavements may develop potholes, necessitating repair.

[0003] When potholes appear on asphalt pavements, the pavement at the pothole is usually excavated to form a groove, and then cold patch material is used to fill the pothole. Currently, the repair method involves manually carrying bagged cold patch material, opening the bags, pouring the cold patch material from each bag into the pothole, then manually using a shovel to spread the cold patch material evenly in the pothole, and finally using a road roller to compact the cold patch material. The manual method of opening bags and dumping is time-consuming and labor-intensive and needs to be improved. Summary of the Invention

[0004] To address the time-consuming and labor-intensive process of workers unpacking, dumping, and leveling cold patch material, this application provides a road repair device and a road repair method.

[0005] The road repair device provided in this application adopts the following technical solution: A road repair device includes a frame, on which a storage rack is provided for placing a plurality of cold patch bags, and the storage rack is provided with a pushing component that pushes the cold patch bags up one by one. The frame is equipped with a storage bin for storing cold patching materials. The storage bin has an inlet and a outlet. The frame is equipped with a moving frame with a moving component that moves the cold patching material bags one by one above the inlet. The frame is equipped with a bag-cutting component for puncturing the cold patching material bags. The frame is also equipped with a storage component that holds multiple empty cold patching material bags. Both the storage component and the bag-cutting component are located above the inlet. A leveling component is located on the frame below the outlet.

[0006] By adopting the above technical solution, before construction, cold patch bags containing cold patch material are stacked one by one on the storage rack. During construction, the machine frame is moved to the pit, the discharge port is aligned with the pit, the pushing component moves the cold patch bag upwards and out of the storage rack, the moving component moves the cold patch bag out of the storage rack and moves it above the inlet. The bag-cutting component cuts open the bottom wall of the cold patch bag, and the cold patch material falls into the inlet due to its own weight. Finally, the empty cold patch bag is collected and stored by the storage component. The cold patch material in the storage bin is discharged from the discharge port and falls into the pit. Finally, the leveling component is used to flatten the cold patch material. This can replace the manual disassembly and leveling of cold patch bags by workers, reduce the workload of workers, and improve work efficiency.

[0007] In one specific implementation, the moving component includes a first cylinder mounted on a moving frame. A moving plate is provided on the end wall of the piston rod of the first cylinder. A plurality of piercing rods are provided on the moving plate. The plurality of piercing rods are evenly distributed along the axis of the piston rod of the first cylinder. The end of each piercing rod is provided with a pointed tip that inserts into the cold patch bag and penetrates into the cold patch. The end of each piercing rod is provided with a plurality of barbs, which are evenly distributed along the circumference of the piercing rod.

[0008] By adopting the above technical solution, when moving the cold patch bag, the first cylinder pushes the moving plate and the piercing rod downward, inserting the tip and barb into the cold patch bag and into the cold patch material. The moving frame then drives the first cylinder, the piercing rod and the cold patch bag to move, so that the cold patch bags can be output and stored on the shelf one by one.

[0009] In one specific implementation, the bag-cutting assembly includes two second cylinders mounted on a movable plate. The piston rod axes of the two second cylinders are intersected. A sixth cylinder is provided on the movable plate to push the second cylinders up and down, and the intersection point is located on the axis of the piston rod of the first cylinder. A piercing knife is provided on the end wall of the piston rod of the second cylinder, with the piercing knife blade facing one side of the movable plate. When the cold-filled material bag is located above the feed inlet, the piercing knife is located below the cold-filled material bag.

[0010] By adopting the above technical solution, when the cold patch bag moves above the inlet, the first cylinder drives the cold patch bag to move upward, the sixth cylinder pushes the second cylinder to move downward, and the two second cylinders push the piercing knife out one by one. The knife blade cuts through the lower side of the cold patch bag. Moreover, since the two piercing knives cross and pierce the cold patch bag, a cross-shaped discharge port is formed. The discharge port is located in the center of the cold patch bag, so the cold patch material can fall into the storage bin from the discharge port due to its own weight.

[0011] In one specific implementation, the storage assembly includes a third cylinder mounted on a movable plate, the axis of which is parallel to the axis of the first cylinder. A fourth cylinder is mounted on the piston rod end wall of the third cylinder, the axis of which is perpendicular to the axis of the third cylinder. A push rod is mounted on the piston rod end wall of the fourth cylinder. Two seventh cylinders are mounted on the movable plate, each with a fifth cylinder mounted on its piston rod end wall. The axis of the fifth cylinder is parallel to the axis of the fourth cylinder. A storage rod is mounted on the piston rod end wall of the fifth cylinder. A space is provided between the storage rod and the movable plate for placing multiple empty cold-filled material bags. The push rod is located between the two storage rods.

[0012] By adopting the above technical solution, after the cold patch material falls from the outlet, the fourth cylinder drives the push rod to retract, the third cylinder pushes the fourth cylinder to move down, and the fourth cylinder and the push rod move to the bottom of the cold patch material bag. The fourth cylinder pushes the push rod to extend, and the push rod is located below the empty cold patch material bag. The third cylinder drives the fourth cylinder to move up, and the push rod thus moves the empty cold patch material bag up along the puncture rod to the fifth cylinder. The push rod squeezes the empty cold patch material bag onto the receiving rod. The fifth cylinder drives the receiving rod to retract. At this time, the push rod supports all the empty cold patch material bags. Since the empty cold patch material bags lose support on both sides and sag, the seventh cylinder pushes the seventh cylinder to move down, and the receiving rod is below the push rod. The seventh cylinder then drives the receiving rod to move up, which can conveniently and quickly collect all the empty cold patch material bags.

[0013] In one specific implementation scheme, a discharge pipe is provided at the outlet of the storage hopper, the axis of the discharge pipe is perpendicular to the axis of the first cylinder, an auger is rotatably installed inside the discharge pipe, and a drive motor for driving the auger to rotate is provided on the discharge pipe.

[0014] By adopting the above technical solution, when the cold patch material falls into the storage bin, it falls from the outlet into the discharge pipe. The drive motor drives the auger to rotate, thereby evenly distributing the cold patch material into the pit.

[0015] In one specific implementation, the leveling assembly includes a vertical frame mounted on a frame, on which pressure rollers are rotatably mounted.

[0016] By adopting the above technical solution, the cold patch material falling into the pit is rolled by a pressure roller, which can replace the manual method of shoveling the cold patch material, thus improving production efficiency and reducing the workload of workers.

[0017] In one specific implementation, the pushing assembly includes a power motor mounted on a storage rack, with a drive gear coaxially mounted on the motor shaft of the power motor. A rotating rod is mounted on the storage rack, with a drive gear and a first gear rotatably mounted on the rotating rod. The drive gear and the first gear are connected by a belt. A fixed rod is mounted on the storage rack, with a second gear rotatably mounted on the fixed rod, the second gear positioned above the first gear. A lifting plate for placing multiple cold-filled material bags is mounted on the storage rack. A chain is mounted on the lifting plate, with one end connected to the lifting plate and the other end passing around the first and second gears and connected to the lifting plate. Rollers that move on the storage rack are mounted on the lifting plate.

[0018] By adopting the above technical solution, the drive motor drives the drive gear to rotate, which in turn drives the drive gear, rotating rod and first gear to rotate, which in turn drives the chain and second gear to rotate, which in turn drives the lifting plate to rise, thereby enabling multiple cold patch bags to be moved upward.

[0019] A road repair method, the specific process of which is as follows: after the road pothole is dug, the mobile base frame is moved to one side of the pothole, the material discharge pipe is aligned with the pothole, and the drive gear is driven to rotate by the power motor, which in turn drives the belt, the drive gear, the first gear and the second gear to rotate, which in turn drives the chain to rotate. The chain can then drive the lifting plate to move, which in turn lifts the cold patch bag to move upward.

[0020] The cold patch bag is moved to the exposed storage shelf. The overhead crane moves the moving plate above the shelf, and the first cylinder pushes the moving plate downwards, inserting the piercing rod and barb into the first cold patch bag. Due to the adhesive nature of the cold patch material, the piercing rod and barb hook hook onto the bag. The overhead crane then moves the moving plate again, moving the cold patch bag above the storage bin. The sixth cylinder pushes the second cylinder and piercing blade to the bottom of the cold patch bag. The second cylinder pushes the piercing blades to extend sequentially, piercing the bottom wall of the cold patch bag to form a cross-shaped opening. The cold patch material, under its own weight, falls through the opening into the storage bin. At this point, the cold patch bag is hooked onto the barb. To facilitate further movement of the cold patch bag using the piercing rod, the fourth cylinder first retracts the pushing rod, at which point all the cold patch bags are empty. The bag lands on the storage rod, and then the third cylinder pushes the fourth cylinder down, moving the fourth cylinder and the push rod below the barb. The fourth cylinder pushes the push rod out, and the push rod is located below the cold patch bag. The third cylinder then drives the fourth cylinder and the push rod to move up, and the push rod can move the empty cold patch bag along the puncture rod to the fifth cylinder. The push rod squeezes the empty cold patch bag onto the storage rod, and the fifth cylinder then drives the storage rod to retract. At this time, the push rod supports all the empty cold patch bags. Since the cold patch bag is a soft bag, the empty cold patch bag loses support on both sides and sags. Therefore, the seventh cylinder pushes the fifth cylinder down, moving the push rod 38 below the empty cold patch bag. The fifth cylinder pushes the storage rod out, and the seventh cylinder then drives the fifth cylinder and the storage rod to move up. This allows for convenient and quick storage of all the empty cold patch bags. After the cold patch material falls into the storage bin, it falls into the discharge pipe. The drive motor drives the auger to rotate, and then the cold patch material is discharged along the discharge pipe. The workers then push the mobile base frame to move according to the shape of the pit, or the mobile equipment can move the mobile base frame to move, so that the cold patch material can be evenly spread in the pit. Then, the pressure roller is used to roll and flatten the cold patch material, which can replace the manual operation of the workers.

[0021] In summary, this application provides a road repair device and a road repair method, including at least one of the following beneficial technical effects: Before construction, cold patch bags containing cold patch material are stacked one by one on a storage rack. During construction, the frame is moved to the pothole, the discharge port is facing the pothole, the pushing component moves the cold patch bag upwards and out of the storage rack, the moving component moves the cold patch bag out of the storage rack and moves it above the inlet, the bag-cutting component cuts the bottom wall of the cold patch bag, and the cold patch material falls into the inlet due to its own weight. Finally, the storage component collects and stores the cold patch bag, and the cold patch material in the storage bin is discharged from the discharge port, so that it can fall into the pothole. Finally, the leveling component is used to level the cold patch material. This can replace the method of workers manually disassembling cold patch bags and leveling cold patch material, reducing the workload of workers and improving work efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a road repair device according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram illustrating the structure of the storage rack in the embodiment.

[0024] Figure 3 This is a structural diagram illustrating the moving component, the bag-splitting component, and the storage component in the embodiment.

[0025] Figure 4 This is a schematic diagram illustrating the structure of the flattening component in the embodiment.

[0026] Explanation of reference numerals in the attached diagram: 1. Frame; 2. Movable base frame; 3. Fixed frame; 4. Storage rack; 5. Pushing assembly; 6. Storage bin; 7. Feed inlet; 8. Discharge outlet; 9. Movable frame; 10. Overhead crane; 11. Moving assembly; 12. Bag cutting assembly; 13. Storage assembly; 14. Leveling assembly; 15. Vertical plate; 16. Power motor; 17. Drive gear; 18. Rotating rod; 19. Drive gear; 20. First gear; 21. Belt; 22. Fixed rod; 23. Second gear; 24. Chain 25. Moving rod; 26. Moving groove; 27. Roller; 28. Slide groove; 29. ​​First cylinder; 30. Moving plate; 31. Piercing rod; 32. Tip; 33. Barb; 34. Second cylinder; 35. Piercing knife; 36. Third cylinder; 37. Fourth cylinder; 38. Pushing rod; 39. Fifth cylinder; 40. Receiving rod; 41. Discharge pipe; 42. Screwdriver; 43. Drive motor; 44. Hanging frame; 45. Pressure roller; 46. Lifting plate; 47. Sixth cylinder; 48. Seventh cylinder. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] This application discloses a road repair device.

[0029] Reference Figure 1 A road repair device includes a frame 1, the frame 1 includes a movable base 2 and a fixed frame 3 mounted on the movable base 2, the movable base 2 is provided with a storage rack 4 for placing a number of cold patch bags, and the storage rack 4 is provided with a pushing component 5 that pushes the cold patch bags up one by one. The mobile base frame 2 is equipped with a storage bin 6 for storing cold patching materials. The storage bin 6 is equipped with a feed inlet 7 and a discharge outlet 8. The fixed frame 3 is equipped with a mobile frame 9, which is located above the feed inlet 7. The mobile frame 9 is equipped with a traveling trolley 10, which is equipped with a moving component 11 that moves the cold patching material bags one by one above the feed inlet 7. The moving component 11 is equipped with a bag-cutting component 12 for puncturing the cold patching material bags. The moving component 11 is equipped with a storage component 13 for holding multiple empty cold patching material bags. Both the storage component 13 and the bag-cutting component 12 are located above the feed inlet 7. The mobile base frame 2 is equipped with a leveling component 14 located below the discharge outlet 8.

[0030] Reference Figure 2 The storage rack 4 includes two opposing upright plates 15 mounted on the movable base 2. The space between the two upright plates 15 is used for stacking multiple cold-fill bags. The pushing assembly 5 includes a power motor 16 mounted on the movable base 2. A drive gear 17 is coaxially mounted on the motor shaft of the power motor 16. A rotating rod 18 is located between the two fixed plates. A drive gear 19 and a first gear 20 are rotatably mounted on the rotating rod 18. In this embodiment, there are two first gears 20, and the drive gear 19 is located between the two first gears 20. The drive gear 17 and the drive gear 19 are connected by a belt 21. A fixing rod 22 is located between the two upright plates 15. The axis of the fixing rod 22 is parallel to the axis of the rotating rod 18. Two second gears 23 are rotatably mounted on the fixed rod 22. The second gears 23 are located above the first gear 20 and correspond one-to-one. A chain 24 is mounted on the lifting plate 46. One end of the chain 24 is connected to the top wall of the lifting plate 46, and the other end of the chain 24 passes around the first gear 20 and the second gear 23 and is connected to the bottom wall of the lifting plate 46. Several moving rods 25 are provided on both sides of the lifting plate 46. In this embodiment, there are four moving rods 25, which are arranged in pairs and respectively on both sides of the lifting plate 46. The upright plate 15 is provided with a moving groove 26 for the moving rods 25 to slide. A roller 27 is provided at one end of the moving rod 25 that passes through the moving groove 26. The upright plate 15 is provided with a sliding groove 28 on both sides opposite to each other for the roller 27 to slide.

[0031] Reference Figure 3 The moving component 11 includes a first cylinder 29 mounted on the traveling trolley 10. The first cylinder 29 is vertically mounted. A moving plate 30 is provided on the piston rod end wall of the first cylinder 29. A plurality of piercing rods 31 are provided on the side of the moving plate 30 away from the traveling trolley 10. The plurality of piercing rods 31 are evenly distributed along the piston rod axis of the first cylinder 29. The end of the piercing rod 31 is provided with a tip 32 that inserts into the cold patch bag and penetrates into the cold patch. The end of the piercing rod 31 is provided with a plurality of barbs 33. The plurality of barbs 33 are evenly distributed along the circumference of the piercing rod 31.

[0032] Reference Figure 3The bag-cutting assembly 12 includes two second cylinders 34 mounted on a movable plate 30. The piston rod axes of the two second cylinders 34 are intersecting. A sixth cylinder 47 is mounted on the movable plate 30 to push the second cylinders 34 up and down. A piercing knife 35 is mounted on the end wall of the piston rod of the second cylinder 34. The piercing knife 35 is mounted along the axial direction of the second cylinder 34. The movement trajectories of the two piercing knives 35 intersect, and the intersection point is located on the straight line where the piston rod axis of the first cylinder 29 is located. The blade of the piercing knife 35 faces the movable plate 30. When the cold-filled material bag is above the feed inlet 7, the piercing knife 35 is located below the cold-filled material bag.

[0033] Reference Figure 3 The storage assembly 13 includes a third cylinder 36 mounted on the movable plate 30. The axis of the third cylinder 36 is parallel to the axis of the first cylinder 29. A fourth cylinder 37 is mounted on the piston rod end wall of the third cylinder 36. The axis of the piston rod of the fourth cylinder 37 is perpendicular to the axis of the piston rod of the third cylinder 36. A pushing rod 38 is mounted on the piston rod end wall of the fourth cylinder 37. Two seventh cylinders 48 are mounted on the movable plate 30. The axis of the seventh cylinder 48 is parallel to the axis of the first cylinder 29. A fifth cylinder 39 is mounted on the piston rod end wall of each seventh cylinder 48. The axis of the fifth cylinder 39 is parallel to the axis of the fourth cylinder 37. A storage rod 40 is mounted on the piston rod end wall of the fifth cylinder 39. A space is left between the storage rod 40 and the movable plate 30 for placing multiple empty cold-filled material bags. The pushing rod 38 is located between the two storage rods 40.

[0034] Reference Figure 4 The material storage silo 6 is provided with a discharge pipe 41 at the discharge port. The discharge pipe 41 extends to one side of the pit. The axis of the discharge pipe 41 is perpendicular to the axis of the first cylinder 29. An auger 42 is rotatably installed inside the discharge pipe 41. A drive motor 43 is provided on the discharge pipe 41 to drive the auger 42 to rotate. The cold replenishment material falling into the material storage silo 6 falls into the discharge pipe 41 from the discharge port. The drive motor 43 drives the auger 42 to rotate, so that the material in the material storage silo 6 can be evenly spread in the pit.

[0035] The leveling component 14 includes a vertical frame 44 mounted on the discharge pipe 41. A pressure roller 45 is rotatably mounted on the vertical frame 44. The pressure roller 45 is used to roll and level the cold patch material that falls into the pit, which can replace the manual shoveling of cold patch material by workers and reduce the workload of workers.

[0036] In other embodiments, the vertical frame 44 is equipped with an electric cylinder, and the end wall of the electric cylinder telescopic rod is connected to the pressure roller 45; the electric cylinder pushes the pressure roller 45 to extend and retract to press the cold patch material, thereby better rolling and flattening the cold patch material.

[0037] This application provides a method for road repair, specifically: after the road pothole is dug, the mobile base frame 2 is moved to one side of the pothole, the discharge pipe 41 is aligned with the pothole, and the drive gear 17 is driven to rotate by the power motor 16, which in turn drives the belt 21, the drive gear 19, the first gear 20 and the second gear 23 to rotate, which in turn drives the chain 24 to rotate. The chain 24 can then drive the lifting plate 46 to move, which in turn lifts the cold patch bag upward.

[0038] The cold patch bag is moved to the exposed storage shelf 4. At this time, the overhead crane 10 moves the moving plate 30 to the top of the storage shelf 4. The first cylinder 29 pushes the moving plate 30 down, thereby inserting the piercing rod 31 and the barb 33 into the first cold patch bag. Due to the stickiness of the cold patch material, the piercing rod 31 and the barb 33 can hook the cold patch bag. The overhead crane 10 then moves the moving plate 30 to the top of the storage bin 6, and the sixth cylinder 47 pushes... The second cylinder 34 and the piercing knife 35 move to the bottom of the cold patch bag. The second cylinder 34 pushes the piercing knife 35 to extend sequentially, piercing the bottom wall of the cold patch bag to form a cross-shaped opening. Due to its own weight, the cold patch material can fall into the storage bin 6 through the opening. At this time, the cold patch bag hook is on the barb 33. To facilitate the piercing rod 31 to move the cold patch bag again, the fourth cylinder 37 first drives the pushing rod 38 to retract. At this time, all the empty cold patch bags fall into the storage bin. On rod 40, the third cylinder 36 pushes the fourth cylinder 37 downward, moving the fourth cylinder 37 and the pushing rod 38 below the barb 33. The fourth cylinder 37 pushes the pushing rod 38 out, positioning it below the cold repair bag. The third cylinder 36 then moves the fourth cylinder 37 and the pushing rod 38 upward, allowing the pushing rod 38 to move the empty cold repair bag along the puncture rod 31 to the fifth cylinder 39. The pushing rod 38 then presses the empty cold repair bag onto the receiving rod 40. The fifth cylinder... Cylinder 39 then drives the storage rod 40 to retract. At this time, the push rod 38 supports all the empty cold repair bags. Since the cold repair bags are soft bags, the empty bags lose support on both sides and sag. Therefore, the seventh cylinder 48 pushes the fifth cylinder 39 down, moving the push rod 38 below the empty cold repair bags. The fifth cylinder 39 pushes the storage rod 40 out, and the seventh cylinder 48 then drives the fifth cylinder 39 and the storage rod 40 up. This allows for convenient and quick storage of all the empty cold repair bags.

[0039] After the cold patch material falls into the storage hopper 6, it falls into the discharge pipe 41. The drive motor 43 drives the auger 42 to rotate, thus discharging the cold patch material along the discharge pipe 41. Workers then move the movable base frame 2 according to the shape of the pit, or the movable base frame 2 can be moved by a mobile device, so that the cold patch material can be evenly spread in the pit. The pressure roller 45 then compacts and flattens the cold patch material, thus replacing manual operation. The above are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A road surface repair device, characterized in that: Includes a frame (1), on which a storage rack (4) is provided for placing a number of cold patch bags, and on which a pushing component (5) is provided to push the cold patch bags up one by one. The frame (1) is provided with a storage bin (6) for storing cold patching material. The storage bin (6) is provided with an inlet (7) and a outlet (8). The frame (1) is provided with a moving frame (9). The moving frame (9) is provided with a moving component (11) for moving the cold patching material bags one by one above the inlet (7). The frame (1) is provided with a bag-cutting component (12) for puncturing the cold patching material bags. The frame (1) is provided with a storage component (13) for holding multiple empty cold patching material bags. The storage component (13) and the bag-cutting component (12) are both located above the inlet (7). The frame (1) is provided with a leveling component (14) located below the outlet (8). The moving component (11) includes a first cylinder (29) mounted on a moving frame (9). A moving plate (30) is provided on the piston rod end wall of the first cylinder (29). A plurality of piercing rods (31) are provided on the moving plate (30). The plurality of piercing rods (31) are evenly distributed along the piston rod axis of the first cylinder (29). The end of the piercing rod (31) is provided with a tip (32) that is inserted into the cold patch bag and penetrates into the cold patch. The end of the piercing rod (31) is provided with a plurality of barbs (33). The plurality of barbs (33) are evenly distributed along the circumference of the piercing rod (31). The bag-cutting assembly (12) includes two second cylinders (34) mounted on a moving plate (30). The piston rod axes of the two second cylinders (34) are intersected. The moving plate (30) is provided with a sixth cylinder (47) for pushing the second cylinders (34) up and down. The intersection point is located on the axis of the piston rod of the first cylinder (29). The piston rod end wall of the second cylinder (34) is provided with a piercing knife (35). The piercing knife (35) faces the moving plate (30). When the cold patch bag is above the feed inlet (7), the piercing knife (35) is located below the cold patch bag.

2. The road repair device according to claim 1, characterized in that: The storage assembly (13) includes a third cylinder (36) mounted on a movable plate (30). The axis of the third cylinder (36) is parallel to the axis of the first cylinder (29). A fourth cylinder (37) is mounted on the piston rod end wall of the third cylinder (36). The axis of the piston rod of the fourth cylinder (37) is perpendicular to the axis of the piston rod of the third cylinder (36). A push rod (38) is mounted on the piston rod end wall of the fourth cylinder (37). Two seventh cylinders (48) are mounted on the movable plate (30). A fifth cylinder (39) is mounted on the piston rod end wall of each seventh cylinder (48). The axis of the fifth cylinder (39) is parallel to the axis of the fourth cylinder (37). A storage rod (40) is mounted on the piston rod end wall of the fifth cylinder (39). A space is left between the storage rod (40) and the movable plate (30) for placing multiple cold patch bags. The push rod (38) is located between the two storage rods (40).

3. The road repair device according to claim 1, characterized in that: The material storage hopper (6) is provided with a discharge pipe (41) at the discharge port. The axis of the discharge pipe (41) is perpendicular to the axis of the first cylinder (29). An auger (42) is rotatably installed inside the discharge pipe (41). A drive motor (43) for driving the auger (42) to rotate is provided on the discharge pipe (41).

4. A road repair device according to claim 1, characterized in that: The leveling component (14) includes a vertical frame (44) mounted on a frame (1), and a pressure roller (45) is rotatably mounted on the vertical frame (44).

5. A road repair device according to claim 1, characterized in that: The pushing assembly (5) includes a power motor (16) mounted on the storage rack (4). A drive gear (17) is coaxially mounted on the motor shaft of the power motor (16). A rotating rod (18) is mounted on the storage rack (4). A drive gear (19) and a first gear (20) are rotatably mounted on the rotating rod (18). The drive gear (17) and the drive gear (19) are connected by a belt (21). A fixed rod (22) is mounted on the storage rack (4). A second gear (20) is rotatably mounted on the fixed rod (22). Gear (23), the second gear (23) is located above the first gear (20), the storage rack (4) is provided with a lifting plate (46) for placing multiple cold replenishment bags, the lifting plate (46) is provided with a chain (24), one end of the chain (24) is connected to the lifting plate (46), the other end of the chain (24) passes around the first gear (20) and the second gear (23) and is connected to the lifting plate (46), the lifting plate (46) is provided with rollers (27) that move on the storage rack (4).

6. A road surface repair method, characterized in that: The specific process of road repair is as follows: After the road pothole is dug, the mobile base frame (2) is moved to one side of the pothole, the discharge pipe (41) is aligned with the pothole, and the drive gear (17) is driven to rotate by the power motor (16), which in turn drives the belt (21), the drive gear (19), the first gear (20) and the second gear (23) to rotate, which in turn drives the chain (24) to rotate, and the chain (24) drives the lifting plate (46) to move, which in turn lifts the cold patch bag to move upward. The cold patch bag is moved to the exposed storage shelf (4). At this time, the crane (10) moves the moving plate (30) to the top of the storage shelf (4). The first cylinder (29) pushes the moving plate (30) down, thereby inserting the piercing rod (31) and the barb (33) into the first cold patch bag. Due to the stickiness of the cold patch material itself, the piercing rod (31) and the barb (33) hook the cold patch bag. The crane (10) then moves the moving plate (30) to the top of the storage bin (6). The sixth cylinder (47) moves the moving plate (30) to the top of the storage bin (6). The second cylinder (34) and the piercing knife (3) 5 are moved to the bottom of the cold patch bag. The second cylinder (34) pushes the piercing knife (35) to extend in sequence. The piercing knife (35) cuts through the bottom wall of the cold patch bag, forming a cross-shaped opening. Due to its own weight, the cold patch material falls from the opening into the storage bin (6). At this time, the cold patch bag hook is on the barb (33). In order to facilitate the piercing rod (31) to move the cold patch bag again, the fourth cylinder (37) first drives the pushing rod (38) to retract. At this time, all the empty cold patch bags fall into the storage rod (40). Then, the third cylinder (36) pushes the fourth cylinder (37) down, moving the fourth cylinder (37) and the push rod (38) below the barb (33). The fourth cylinder (37) pushes the push rod (38) out, and the push rod (38) is located below the cold repair bag. The third cylinder (36) then drives the fourth cylinder (37) and the push rod (38) up, and the push rod (38) moves the empty cold repair bag along the puncture rod (31) to the fifth cylinder (39). The push rod (38) squeezes the empty cold repair bag onto the storage rod (40). The fifth cylinder (39) then drives the storage rod (40) to retract. At this time, the push rod (38) supports all the empty cold repair bags. Since the cold repair bags are soft bags, the empty cold repair bags lose their support on both sides and sag. Therefore, the seventh cylinder (48) pushes the fifth cylinder (39) down and moves the push rod (38) below the empty cold repair bags. The fifth cylinder (39) pushes the storage rod (40) out. The seventh cylinder (48) then drives the fifth cylinder (39) and the storage rod (40) to move up. This makes it convenient and quick to store all the empty cold repair bags. After the cold patch material falls into the storage bin (6), it falls into the discharge pipe (41). The drive motor (43) drives the auger (42) to rotate, and then the cold patch material is discharged along the discharge pipe (41). The workers then push the movable base frame (2) to move according to the shape of the pit, so that the cold patch material is evenly spread in the pit. Then the pressure roller (45) is used to roll and flatten the cold patch material, thus replacing the manual operation of the workers.

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