A device for repairing cracks in a laminated board

Abstract

The present application is suitable for the technical field of laminated slab repair, and provides a laminated slab crack repair device, which comprises a vehicle body and further comprises: a swing rotating assembly connected with the vehicle body through a lifting assembly, the lifting assembly being used for supporting and driving the swing rotating assembly to lift; a repair agent scraping assembly and a polishing assembly, the swing rotating assembly being provided with the repair agent scraping assembly and the polishing assembly, the swing rotating assembly being used for driving the repair agent scraping assembly to reciprocate, the repair agent scraping assembly being used for discharging repair agent and cooperating with the reciprocation to repair the laminated slab crack, and the swing rotating assembly being further used for driving the polishing assembly to rotate, so that the polishing assembly is used for polishing the repaired area after the repair agent scraping assembly is removed. The present application realizes the automatic operation of repair agent scraping and polishing, improves the repair quality, reduces manual operation, and significantly improves the construction efficiency and intelligent level.

Description

Technical Field

[0001] This invention belongs to the field of composite slab repair technology, and particularly relates to a device for repairing cracks in composite slabs. Background Technology

[0002] Composite slabs are widely used in the field of precast formwork for cast-in-place concrete, such as foundations, cast-in-place roofs, and retaining walls. They are also commonly found in the construction of libraries, commercial buildings, hospitals, hotels, and underground parking lots. Typically composed of precast slabs and cast-in-place steel reinforcement, they possess excellent integrity, high rigidity, and ease of decoration, making them ideal for high-rise and large-area buildings with high rigidity requirements.

[0003] Repairing cracks in composite slabs is an important maintenance task. However, existing crack repair devices using repair agents have the following drawbacks: they cannot automate and integrate the application of the repair agent and post-repair grinding, affecting construction efficiency and the level of automation. Therefore, there is an urgent need to develop a composite slab crack repair device to overcome the shortcomings in current practical applications. Summary of the Invention

[0004] The purpose of this invention is to provide a repair device for cracks in composite slabs, which aims to solve the problems mentioned in the background art.

[0005] This invention is implemented as follows: a device for repairing cracks in composite slabs, comprising a vehicle body, and further comprising:

[0006] A swing-rotating assembly is connected to the vehicle body via a lifting assembly, the lifting assembly being used to support the swing-rotating assembly and drive its lifting and lowering.

[0007] The repair agent scraping component and the grinding component are mounted on the swinging rotating component. The swinging rotating component is used to drive the repair agent scraping component to swing back and forth. The repair agent scraping component is used to discharge the repair agent and repair the cracks in the composite plate in conjunction with its reciprocating swing. The swinging rotating component is also used to drive the grinding component to rotate, so that the repaired area can be ground by the grinding component after the repair agent scraping component is removed.

[0008] A further technical solution includes an electric component A, a mounting plate, a support, an electric component B, bevel gears A, B, C, D, E, and F, a support shaft, an L-shaped rod, a connecting rod, a support ring, and a mounting shaft. Electric component A and electric component B are fixed to both ends of the mounting plate, and bevel gears A and B are fixed to their respective output ends. A support is fixed to the mounting plate between bevel gears A and B, and a support shaft is fixed to the support. Bevel gears C and D are positioned opposite each other at one end of the support shaft. At the other end, bevel gears E and F are provided opposite each other, and bevel gear A is meshed with bevel gear C, bevel gear B is meshed with bevel gear F, and bevel gear G is meshed between bevel gear D and bevel gear E. A mounting shaft is fixed on the side of bevel gear G away from the support, and a grinding component is detachably installed at the end of the mounting shaft. A support ring is also rotatably sleeved on the mounting shaft, and connecting rods are fixed on both sides of the support ring. The end of the connecting rod away from the support ring is fixedly connected to an L-shaped rod, and one end of the L-shaped rod is rotatably connected to the support shaft. A repair agent scraping component is detachably installed at the other end of the L-shaped rod.

[0009] In a further technical solution, the bevel gear C and bevel gear D are fixedly connected, and both bevel gear C and bevel gear D are rotatably connected to the support shaft; the bevel gear E and bevel gear F are fixedly connected, and both bevel gear E and bevel gear F are rotatably connected to the support shaft; the first branch of the L-shaped rod is coaxial with the support shaft and rotatably connected to the support shaft, and the second branch of the L-shaped rod is perpendicular to the support shaft; the connecting rod is parallel to the support shaft.

[0010] In a further technical solution, the grinding assembly includes a mounting sleeve, a fixing bolt, and a grinding disc. The mounting sleeve is fitted onto the end of the mounting shaft, and the mounting sleeve is provided with a fixing bolt for fixing it onto the mounting shaft. The grinding disc is fixed to the end of the mounting sleeve away from the mounting shaft.

[0011] A further technical solution includes a connecting sleeve, an inner rod, an outer cylinder, a scraping plate, a repair agent box, a pressure device, a limiting cap, a repair agent tube, and a solenoid valve. An outer cylinder is fixed to each end of the scraping plate. An inner rod is elastically and anti-sliply mounted on the outer cylinder. A limiting cap is fixed to the end of the inner rod, and a connecting sleeve is fitted around the limiting cap to be threadedly connected to the end of the L-shaped rod. A repair agent box is fixed to the top of the scraping plate, and a pressure device for pressurizing the cavity of the repair agent box is also fixed to the top of the scraping plate. A repair agent discharge hole is opened on each side of the middle of the scraping plate. Two repair agent tubes are connected to the bottom of the repair agent box, and the lower ends of the two repair agent tubes are connected to the top of the two repair agent discharge holes. A cavity is also opened inside the scraping plate, through which both repair agent tubes pass. A solenoid valve is installed on the repair agent tube inside the cavity.

[0012] In a further technical solution, the cross-section of the scraping plate is an inverted isosceles triangle; the top of the repair agent box is also provided with a repair agent replenishment port; the pressure injector is connected to the top of the inner cavity of the repair agent box, and a one-way valve is also provided at the connection between the pressure injector and the repair agent box.

[0013] A further technical solution is that when the scraper plate swings back and forth, the solenoid valve close to the direction of movement of the scraper plate opens, and the solenoid valve away from the direction of movement of the scraper plate closes.

[0014] In a further technical solution, the repair agent scraping assembly also includes a telescopic component B, a cylinder fixing seat, and a scraping plate. The scraping plate is slidably provided on both sides of the scraping plate, and the telescopic component B is fixed at both ends of the scraping plate. The telescopic component B is arranged parallel to the surface of the scraping plate, and the cylinder of the telescopic component B is also fixedly connected to the outer cylinder through the cylinder fixing seat. The lower surface of the scraping plate is inclined upward at the end away from the scraping plate.

[0015] A further technical solution is provided, wherein the vehicle body includes a traveling wheel, an equipment base, a counterweight, a push rod, a column, and a cross plate. The traveling wheel is installed at the bottom of the equipment base, the counterweight is fixed to one side of the top of the equipment base, the column is fixed to the other side of the top of the equipment base, the cross plate is fixed to the upper end of the column, and the push rod is also fixed on the equipment base. The lifting assembly includes a telescopic component A, which is fixed to the column and parallel to the column. The output end of the telescopic component A is fixedly connected to the middle of the mounting plate of the swing rotation assembly.

[0016] The present invention provides a repair device for cracks in composite slabs, which has the following beneficial effects:

[0017] The lifting assembly can drive the swinging and rotating assembly to perform lifting and lowering movements, thereby adjusting the height of the repair agent scraping assembly and the grinding assembly to meet different repair and grinding needs.

[0018] The oscillating rotation component ensures smooth and efficient reciprocating oscillation of the repair agent application component, which, in conjunction with the application component, releases the repair agent to repair cracks in the composite slab. During this process, the repair agent is evenly applied to the cracks, ensuring optimal repair results.

[0019] After the repair operation is completed, the repair agent application component can be easily removed and the grinding component installed. Then, the grinding component is rotated by the swing-rotating component to achieve fine grinding of the repaired area.

[0020] This design not only enables integrated repair and polishing operations, but also significantly improves the level of intelligence in construction, greatly enhancing construction efficiency and effectiveness. Attached Figure Description

[0021] Figure 1A schematic diagram of the structure of a composite slab crack repair device provided in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 A partially enlarged structural diagram;

[0023] Figure 3 for Figure 2 A magnified structural diagram of part A in the middle;

[0024] Figure 4 for Figure 2 Front view structural diagram;

[0025] Figure 5 for Figure 4 A magnified structural diagram of part B in the middle section;

[0026] Figure 6 for Figure 4 Schematic diagram of the cross-sectional structure of Part II.

[0027] In the diagram: 1-Walking wheel, 2-Equipment base, 3-Counterweight, 4-Storage box, 5-Push rod, 6-Control panel, 7-Column, 8-Horizontal plate, 9-Telescopic component A, 10-Swing and rotating assembly, 11-Repair agent scraping assembly, 12-Grinding assembly, 13-Electrical component A, 14-Mounting plate, 15-Support, 16-Electrical component B, 17-Bevel gear A, 18-Bevel gear B, 19-Bevel gear C, 20-Bevel gear D, 21-Bevel gear E, 22-Bevel gear F, 23-Support shaft. 24-L-shaped rod, 25-connecting rod, 26-support ring, 27-mounting sleeve, 28-fixing bolt, 29-connecting sleeve, 30-inner rod, 31-outer cylinder, 32-telescopic component B, 33-cylinder fixing seat, 34-scraper plate, 35-scraping plate, 36-repair agent discharge hole, 37-mounting shaft, 38-repair agent box, 39-repair agent replenishment port, 40-pressurizer, 41-limit cap, 42-repair agent tube, 43-solenoid valve, 44-cavity, 45-bevel gear G, 46-grinding disc. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] like Figure 1-6 As shown, an embodiment of the present invention provides a repair device for cracks in composite slabs, including a vehicle body and further comprising:

[0031] A swing-rotating assembly 10 is connected to the vehicle body via a lifting assembly, which supports the swing-rotating assembly 10 and drives it to rise and fall.

[0032] The repair agent scraping assembly 11 and the grinding assembly 12 are mounted on the swinging and rotating assembly 10. The swinging and rotating assembly 10 is used to drive the repair agent scraping assembly 11 to swing back and forth. The repair agent scraping assembly 11 is used to discharge the repair agent and repair the cracks in the composite plate in coordination with its reciprocating swing. The swinging and rotating assembly 10 is also used to drive the grinding assembly 12 to rotate, so that after the repair agent scraping assembly 11 is removed, the repair area is ground by the grinding assembly 12.

[0033] In this embodiment of the invention, the lifting component can drive the swing-rotating component 10 to perform lifting and lowering movements, thereby adjusting the height of the repair agent scraping component 11 and the grinding component 12 to meet different repair and grinding needs. The swing-rotating component 10 ensures that the repair agent scraping component 11 achieves smooth and efficient reciprocating swing, cooperating with the repair agent scraping component 11 to release the repair agent, thereby repairing the cracks in the composite slab. During this process, the repair agent can be evenly covered at the crack, ensuring the best repair effect.

[0034] After the repair operation is completed, the repair agent application component 11 can be easily removed and the grinding component 12 can be installed (or the grinding component 12 can remain in place without affecting normal operation). Subsequently, the grinding component 12 is driven to rotate by the swing rotation component 10 to achieve fine grinding of the repaired area. This design not only realizes the integrated operation of repair and grinding, but also significantly improves the level of intelligence in construction, greatly enhancing construction efficiency and effectiveness.

[0035] like Figure 2-6As shown, in a preferred embodiment of the present invention, the swing rotation assembly 10 includes an electric component A13, a mounting plate 14, a support 15, an electric component B16, bevel gears A17, B18, C19, D20, E21, and F22, a support shaft 23, an L-shaped rod 24, a connecting rod 25, a support ring 26, and a mounting shaft 37. Electric components A13 and B16 are fixed to both ends of the mounting plate 14, and bevel gears A17 and B18 are fixed to their output ends. A support 15 is fixed to the mounting plate 14 between bevel gears A17 and B18, and a support shaft 23 is fixed to the support 15. One end of the support shaft 23 is opposite to bevel gear C19. Along with bevel gear D20, bevel gear E21 and bevel gear F22 are provided opposite to each other on the other end of the support shaft 23. Bevel gear A17 is meshed with bevel gear C19, and bevel gear B18 is meshed with bevel gear F22. Bevel gear G45 is meshed between bevel gear D20 and bevel gear E21. A mounting shaft 37 is fixed on the side of bevel gear G45 away from the support 15. A grinding component 12 is detachably installed on the end of the mounting shaft 37. A support ring 26 is also rotatably sleeved on the mounting shaft 37. Connecting rods 25 are fixed on both sides of the support ring 26. The end of the connecting rod 25 away from the support ring 26 is fixedly connected to an L-shaped rod 24. One end of the L-shaped rod 24 is rotatably connected to the support shaft 23. A repair agent scraping component 11 is detachably installed on the other end of the L-shaped rod 24.

[0036] Preferably, the bevel gear C19 and bevel gear D20 are fixedly connected, and both bevel gear C19 and bevel gear D20 are rotatably connected to the support shaft 23; the bevel gear E21 and bevel gear F22 are fixedly connected, and both bevel gear E21 and bevel gear F22 are rotatably connected to the support shaft 23.

[0037] Preferably, the first branch of the L-shaped rod 24 is coaxial with and rotatably connected to the support shaft 23, and the second branch of the L-shaped rod 24 is perpendicular to the support shaft 23; the connecting rod 25 is parallel to the support shaft 23, thereby improving the reliability of the reciprocating swing of the mounting shaft 37.

[0038] In practical use, driven by electric components A13 and B16, when bevel gears A17 and B18 rotate in opposite directions and at the same speed, bevel gear G45 will not rotate, and mounting shaft 37 will oscillate back and forth; when bevel gears A17 and B18 rotate in the same direction and at the same speed, bevel gear G45 will rotate, and mounting shaft 37 will rotate but will not oscillate.

[0039] The grinding assembly 12 includes a mounting sleeve 27, a fixing bolt 28, and a grinding disc 46. The mounting sleeve 27 is fitted onto the end of the mounting shaft 37. The mounting sleeve 27 is provided with a fixing bolt 28 for fixing it onto the mounting shaft 37. The grinding disc 46 is fixed to the end of the mounting sleeve 27 away from the mounting shaft 37. The mounting sleeve 27 is designed to be detachable, which facilitates the replacement and disassembly of the grinding disc 46 and ensures the reliable operation of the grinding process.

[0040] The repair agent scraping assembly 11 includes a connecting sleeve 29, an inner rod 30, an outer cylinder 31, a scraping plate 35, a repair agent box 38, a pressure device 40, a limiting cap 41, a repair agent tube 42, and a solenoid valve 43. An outer cylinder 31 is fixed to each end of the scraping plate 35. An inner rod 30 is elastically mounted on the outer cylinder 31 to prevent slippage; a conventional arrangement is acceptable and not limited. A limiting cap 41 is fixed to the end of the inner rod 30. A connecting sleeve 29, which can be threadedly connected and fixed to the end of the L-shaped rod 24, is fitted around the limiting cap 41. Figure 5 As shown, the rotating connecting sleeve 29 is threadedly connected to the L-shaped rod 24 until the end of the L-shaped rod 24 abuts against the limiting cap 41, thus achieving a reliable connection and fixation. A repair agent box 38 is fixed to the top of the scraping plate 35, and a pressure pressurizer 40 for pressurizing the inner cavity of the repair agent box 38 is also fixed to the top of the scraping plate 35. A repair agent discharge hole 36 is opened on both sides of the middle part of the scraping plate 35. Two repair agent tubes 42 are connected to the bottom of the repair agent box 38, and the lower ends of the two repair agent tubes 42 are connected to the top of the two repair agent discharge holes 36. A cavity 44 is also opened inside the scraping plate 35, and both repair agent tubes 42 pass through the cavity 44. A solenoid valve 43 is also installed on the repair agent tubes 42 inside the cavity 44.

[0041] Preferably, the cross-section of the scraping plate 35 is an inverted isosceles triangle, which facilitates scraping operations on both sides; the top of the repair agent box 38 is also provided with a repair agent replenishment port 39, which facilitates the addition of repair agent; the pressure injector 40 is preferably connected to the top of the inner cavity of the repair agent box 38, and a one-way valve (not shown) is also provided at the connection between the pressure injector 40 and the repair agent box 38 to prevent backflow of repair agent and improve reliability.

[0042] Preferably, when the scraping plate 35 swings back and forth, the solenoid valve 43 close to the direction of movement of the scraping plate 35 opens, and the solenoid valve 43 away from the direction of movement of the scraping plate 35 closes, so that the repair agent is stably discharged onto the crack and can be scraped and used immediately, which has high reliability.

[0043] In one embodiment, the repair agent scraping assembly 11 further includes a telescopic member B32, a cylinder fixing seat 33, and a scraping plate 34. The scraping plate 34 is slidably mounted on both sides of the scraping plate 35, and the telescopic member B32 is fixed to both ends of the scraping plate 34. The telescopic member B32 is arranged parallel to the surface of the scraping plate 35, and the cylinder of the telescopic member B32 is also fixedly connected to the outer cylinder 31 via the cylinder fixing seat 33. Preferably, the lower surface of the scraping plate 34 is inclined upwards at the end furthest from the scraping plate 35. By using the telescopic member B32 to drive the scraping plate 34 to move, the repair agent on the surface of the scraping plate 35 can be scraped off by the scraping plate 34, resulting in high reliability.

[0044] like Figure 1 As shown, in a preferred embodiment of the present invention, the vehicle body includes a traveling wheel 1, an equipment base 2, a counterweight 3, a storage box 4, a push rod 5, a column 7, and a cross plate 8. The traveling wheel 1 is installed at the bottom of the equipment base 2, the counterweight 3 is fixed to one side of the top of the equipment base 2, and the storage box 4 is fixed on the counterweight 3. The column 7 is fixed to the other side of the top of the equipment base 2, and the cross plate 8 is fixed to the upper end of the column 7. The push rod 5 is also fixed to the equipment base 2. The counterweight 3 serves to increase the weight and improve the stability of the column 7. The push rod 5 facilitates the movement of the device.

[0045] The lifting assembly includes a telescopic component A9, which is fixed to the column 7 and parallel to the column 7. The output end of the telescopic component A9 is fixedly connected to the middle of the mounting plate 14 of the swing rotation assembly 10. The swing rotation assembly 10 can be driven to lift and lower through the telescopic component A9.

[0046] Preferably, a control panel 6 is also fixed on the push rod 5. The control panel 6 is used to control the telescopic component A9, electric component A13, electric component B16, telescopic component B32, pressure booster 40, and solenoid valve 43. The control of each component can be achieved using a controller disclosed in the prior art. The model and circuit connection of each component are not specifically limited and can be flexibly configured in practical applications. Furthermore, telescopic components A9 and B32 can be hydraulic cylinders or electric telescopic cylinders, etc.; electric components A13 and B16 can be servo motors, etc.

[0047] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve any improvement to the software and methods.

[0048] The composite slab crack repair device provided by this invention has the following specific working process:

[0049] Controlled by electric components A13 and B16, bevel gears A17 and B18 can rotate in opposite directions, while bevel gear G45 remains stationary. During this process, mounting shaft 37 can swing to a specified angle as needed. Subsequently, under the action of the reverse rotation of bevel gears A17 and B18, mounting shaft 37 swings within a specific range, easily handling the task of repairing surface cracks of laminated plates with different slopes.

[0050] During the repair operation, the pressure injector 40 applies uniform pressure to the inner cavity of the repair agent box 38. Controlled by the solenoid valve 43, it ensures that the required repair agent can be discharged from the repair agent tube 42 and flow out through the repair agent discharge hole 36. The scraper 35, during its oscillation, evenly applies the repair agent to the crack, achieving precise repair. It is worth mentioning that the elastic connection design between the inner rod 30 and the outer cylinder 31 can flexibly adapt to the reciprocating oscillation of the scraper 35, ensuring that the scraper 35 always maintains a tight fit with the repair surface, improving the repair effect.

[0051] In addition, the telescopic component B32 drives the scraper plate 34 to move, effectively removing excess repair agent from the surface of the scraper plate 35, ensuring that the repair agent can be evenly covered on the repair surface, and at the same time achieving timely cleaning of the scraper plate 35, further improving the overall repair effect and reliability.

[0052] After the repair work is completed, the entire repair agent scraping assembly 11 can be easily removed. Then, driven by electric components A13 and B16, bevel gears A17 and B18 rotate in the same direction, which in turn drives bevel gear G45 to rotate. The rotation of the grinding disc 46 can perform fine grinding on the repaired area, achieving a seamless connection between repair and grinding, greatly improving the level of intelligence, efficiency and effect of construction.

[0053] In summary, this invention achieves automation, intelligence, and high efficiency in the repair of cracks in composite slabs, significantly improving construction quality and efficiency.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A device for repairing cracks in composite slabs, comprising a vehicle body, characterized in that, Also includes: A swing-rotating assembly (10) is connected to the vehicle body via a lifting assembly. The lifting assembly is used to support the swing-rotating assembly (10) and drive it to rise and fall. A repair agent scraping assembly (11) and a grinding assembly (12) are mounted on the swinging rotating assembly (10). The swinging rotating assembly (10) is used to drive the repair agent scraping assembly (11) to swing back and forth. The repair agent scraping assembly (11) is used to discharge the repair agent and repair the cracks in the composite plate in coordination with its swinging back and forth. The swinging rotating assembly (10) is also used to drive the grinding assembly (12) to rotate, so that the repair area is ground by the grinding assembly (12) after the repair agent scraping assembly (11) is removed. The swing rotation assembly (10) includes an electric component A (13), a mounting plate (14), a support (15), an electric component B (16), a bevel gear A (17), a bevel gear B (18), a bevel gear C (19), a bevel gear D (20), a bevel gear E (21), a bevel gear F (22), a support shaft (23), an L-shaped rod (24), a connecting rod (25), a support ring (26), and a mounting shaft (37). Electric component A (13) and electric component B (16) are fixed at both ends of the mounting plate (14). Bevel gear A (17) and bevel gear B (18) are fixed at the output ends of electric component A (13) and electric component B (16). A support (15) is fixed between bevel gear A (17) and bevel gear B (18) on the mounting plate (14). A support shaft (23) is fixed on the support shaft (15). Bevel gear C (19) and bevel gear D (20) are provided opposite to each other at one end of the support shaft (23). Bevel gear E (21) and bevel gear F (22) are provided opposite to each other at the other end of the support shaft (23). Bevel gear A (17) is meshed with bevel gear C (19), and bevel gear B (18) is meshed with bevel gear F (22). The bevel gear D (20) and bevel gear E (21) are meshed with a bevel gear G (45). A mounting shaft (37) is fixed on the side of the bevel gear G (45) away from the support (15). A grinding component (12) is detachably mounted on the end of the mounting shaft (37). A support ring (26) is also rotatably sleeved on the mounting shaft (37). A connecting rod (25) is fixed on both sides of the support ring (26). The end of the connecting rod (25) away from the support ring (26) is fixedly connected to an L-shaped rod (24). One end of the L-shaped rod (24) is rotatably connected to the support shaft (23). A repair agent scraping component (11) is detachably mounted on the other end of the L-shaped rod (24). The bevel gear C (19) and bevel gear D (20) are fixedly connected, and both the bevel gear C (19) and bevel gear D (20) are rotatably connected to the support shaft (23); The bevel gear E (21) and bevel gear F (22) are fixedly connected, and both the bevel gear E (21) and bevel gear F (22) are rotatably connected to the support shaft (23); The first branch of the L-shaped rod (24) is coaxial with the support shaft (23) and rotatably connected to the support shaft (23), and the second branch of the L-shaped rod (24) is perpendicular to the support shaft (23); The connecting rod (25) is parallel to the support shaft (23).

2. The equipment for repairing cracks in composite slabs according to claim 1, characterized in that, The grinding assembly (12) includes a mounting sleeve (27), a fixing bolt (28), and a grinding disc (46). The end of the mounting shaft (37) is fitted with a mounting sleeve (27), and the mounting sleeve (27) is provided with fixing bolts (28) for fixing it to the mounting shaft (37). A grinding disc (46) is fixed at the end of the mounting sleeve (27) away from the mounting shaft (37).

3. The equipment for repairing cracks in composite slabs according to claim 1, characterized in that, The repair agent scraping assembly (11) includes a connecting sleeve (29), an inner rod (30), an outer cylinder (31), a scraping plate (35), a repair agent box (38), a pressure device (40), a limit cap (41), a repair agent tube (42), and a solenoid valve (43). The scraping plate (35) has an outer cylinder (31) fixed at both ends. An inner rod (30) is provided on the outer cylinder (31) to prevent slippage. A limit cap (41) is fixed at the end of the inner rod (30). A connecting sleeve (29) is provided on the outside of the limit cap (41) to be threadedly connected and fixed to the end of the L-shaped rod (24). The top of the scraping plate (35) is fixed with a repair agent box (38), and the top of the scraping plate (35) is also fixed with a pressure pressurizer (40) for pressurizing the cavity of the repair agent box (38). The scraping plate (35) has a repair agent discharge hole (36) on each side of the middle part. The bottom of the repair agent box (38) is connected to two repair agent tubes (42), and the lower ends of the two repair agent tubes (42) are connected to the top of the two repair agent discharge holes (36). The scraping plate (35) also has a cavity (44) inside, and two repair agent tubes (42) pass through the cavity (44). A solenoid valve (43) is also installed on the repair agent tube (42) inside the cavity (44).

4. The equipment for repairing cracks in composite slabs according to claim 3, characterized in that, The cross-section of the scraping plate (35) is an inverted isosceles triangle. The top of the repair agent box (38) is also provided with a repair agent replenishment port (39). The pressurizer (40) is connected to the top of the inner cavity of the repair agent box (38), and a one-way valve is provided at the connection between the pressurizer (40) and the repair agent box (38).

5. The equipment for repairing cracks in composite slabs according to claim 3, characterized in that, When the scraper plate (35) swings back and forth, the solenoid valve (43) close to the direction of movement of the scraper plate (35) opens, and the solenoid valve (43) away from the direction of movement of the scraper plate (35) closes.

6. The equipment for repairing cracks in composite slabs according to claim 3, characterized in that, The repair agent scraping assembly (11) also includes a telescopic component B (32), a cylinder fixing seat (33), and a scraping plate (34). The scraping plate (35) is slidably provided with scraping plates (34) on both sides. The scraping plates (34) are fixed with telescopic members B (32) at both ends. The telescopic members B (32) are arranged parallel to the surface of the scraping plate (35). The cylinder of the telescopic members B (32) is also fixedly connected to the outer cylinder (31) through the cylinder fixing seat (33). The lower surface of the scraper (34) is inclined upward at the end away from the scraper (35).

7. The equipment for repairing cracks in composite slabs according to claim 1, characterized in that, The vehicle body includes a walking wheel (1), an equipment base (2), a counterweight (3), a push rod (5), a column (7), and a cross plate (8); The bottom of the equipment base (2) is equipped with a walking wheel (1), a counterweight (3) is fixed on one side of the top of the equipment base (2), a column (7) is fixed on the other side of the top of the equipment base (2), a horizontal plate (8) is fixed on the upper end of the column (7), and a push rod (5) is also fixed on the equipment base (2). The lifting assembly includes a telescopic component A (9); The telescopic component A (9) is fixed on the column (7), and the telescopic component A (9) and the column (7) are parallel. The output end of the telescopic component A (9) is fixedly connected to the middle of the mounting plate (14) of the swing rotation assembly (10).

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