A concrete crack repairing device and repairing method

Abstract

The application relates to the technical field of concrete crack repairing, in particular to a concrete crack repairing device and method, which comprises a box body, wherein a fixed cylinder is arranged in the box body in the upper and lower axial directions, the lower end of the fixed cylinder penetrates through the box body, the inside of the fixed cylinder is provided with a movable drill rod, the upper end of the drill rod is fixedly connected with a transmission rod, a sliding mechanism capable of controlling the up and down sliding of the transmission rod is arranged in the box body, walking wheels are arranged on the left and right sides of the box body, a driving mechanism capable of controlling the rotation or stop of the walking wheels is arranged in the box body, a guide mechanism capable of guiding the advancing direction of the walking wheels is arranged on the front side of the box body, the concrete crack can be drilled and grooved and grouting repairing is facilitated, the concrete crack repairing device is very convenient to use, the repairing efficiency of the concrete crack is improved, and the concrete crack repairing device has a wide application prospect in the technical field of concrete crack repairing.

Description

Technical Field

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

[0002] Concrete is widely used in roads, floors, walls, bridges, and other applications. However, its use has led to several drawbacks, namely concrete cracking. There are many causes of concrete cracking, such as: cracks caused by external loads, which are very common and are caused by the primary stresses calculated according to conventional methods; cracks in concrete components under conventional static and dynamic loads and secondary stresses, known as load cracks, which can be broadly categorized into direct stress cracks and secondary stress cracks; cracks caused by temperature changes; and cracks caused by soft soil foundations with poor foundation strength and bearing capacity, leading to uneven settlement of the foundation and potentially causing cracks in the superstructure concrete. Furthermore, cracks can also be caused by design flaws, shrinkage, and frost heave, all of which negatively impact the load-bearing capacity and durability of concrete structures. Therefore, it is essential to repair concrete cracks promptly.

[0003] Currently, when repairing cracks in concrete roads, the common practice is to simply clean the cracks and then inject grout into them. However, this method makes it difficult to thoroughly clean the dust adhering to the inner surface of the crack, and the crack surface is not conducive to the grouting process. This results in poor adhesion between the grout and the crack surface, making it prone to pores and causing new cracks to appear. Another repair method involves enlarging or grooving the concrete cracks before grouting. However, current enlarging and grouting equipment are separate devices. Furthermore, current enlarging equipment is not convenient for continuously adjusting the depth of the enlarged or grooved area during the enlargement and grooving process. Because the depth of concrete cracks varies, many cracks require multiple enlargements, making the process very cumbersome and inefficient. Therefore, there is an urgent need for a concrete crack repair device and method to solve the problems mentioned in the background technology. Summary of the Invention

[0004] To address the problems mentioned above in the background art, a concrete crack repair device and repair method are invented.

[0005] The technical solution of the present invention includes a housing, wherein a first motor in a vertical direction is disposed within the housing, a first driving gear is coaxially disposed at the output end of the first motor, a fixed cylinder in a vertical direction is disposed within the housing, the lower end of the fixed cylinder penetrates through the housing and a movable drill rod is disposed inside it, the drill rod has multiple annular protrusions, a first driven gear that can mesh with the first driving gear is disposed at the upper end of the fixed cylinder, a transmission rod is fixedly connected to the upper end of the drill rod, a sliding mechanism that can control the vertical sliding of the transmission rod is disposed within the housing, and wheels are respectively disposed on the left and right sides of the housing. The internal structure includes a drive mechanism that controls the rotation or stopping of the traveling wheels. A guide mechanism is located on the front of the housing to guide the direction of travel of the traveling wheels. A slurry hopper is located inside the housing, containing a rotatable stirring roller. Multiple stirring rods are arranged around the periphery of the stirring roller. A feed roller is coaxially mounted at the lower end of the stirring roller. The lower end of the slurry hopper passes through the housing and is movably connected to a grouting pipe. A camera module is located at the lower end of the housing for photographing the drill rod and grouting pipe. A control panel is located at the upper end of the housing. The camera module, the first motor, and the second motor are all electrically connected to the control panel.

[0006] Preferably, the sliding mechanism includes a connecting rod, a rotating screw, a guide plate, a first driven bevel gear, a second motor, a sliding rod, a sliding cylinder, a first driving bevel gear, and a second driving bevel gear. The upper end of the transmission rod passes through the first driven gear and is provided with a connecting rod. A rotating screw that is axially rotatable is provided on the rear side of the housing. The other end of the connecting rod is threadedly connected to the rotating screw. A guide plate is provided inside the housing, and the connecting rod can slide up and down on the guide plate. The first driven bevel gear is coaxially provided on the upper end of the rotating screw. A second motor is provided inside the housing, and a sliding rod is provided at the output end of the second motor. A sliding cylinder that can slide on the sliding rod is provided on the sliding rod. A first driving bevel gear located to the left of the first driven bevel gear and capable of meshing with it is provided on the sliding cylinder. A second driving bevel gear located to the right of the first driven bevel gear and capable of meshing with it is provided on the right side of the sliding cylinder. A reversing mechanism that can adjust the meshing state of the first driven bevel gear is provided on the sliding cylinder.

[0007] Preferably, the reversing mechanism includes a reversing rod, a reversing groove, a slot, a limiting spring, a locking pin, and a push handle. The reversing rod is provided on the left side of the sliding cylinder. The upper end of the housing has a reversing groove that runs vertically through the shaft. Three slots are provided on the rear side wall of the reversing groove, which are evenly distributed in the left-right direction and communicate with the reversing groove. The reversing rod is provided with a limiting spring in the front-rear axial direction. The end of the limiting spring away from the reversing rod is provided with a locking pin that can be inserted into the slot. The upper end of the reversing rod extends out of the reversing groove and is provided with a push handle.

[0008] Preferably, the drive mechanism includes a second driving gear, a second driven gear, a lower meshing block, a worm, an upper meshing block, a connecting rod, a limiting spring, a guide rod, a limiting rod, a limiting groove block, a limiting protrusion, a pull ring, a rotating shaft, and a worm wheel. The output end of the first motor is provided with the second driving gear. The housing contains a second driven gear that meshes with the second driving gear. The upper end of the second driven gear is provided with a lower meshing block. The upper end of the lower meshing block has multiple lower side teeth evenly distributed circumferentially. The housing contains a rotatable worm. The upper end of the worm has a sliding upper meshing block. The lower end of the upper meshing block has multiple upper side teeth evenly distributed circumferentially and capable of engaging with the lower side teeth. The housing contains a vertically movable connecting rod. The upper end of the upper meshing block is rotatably connected to the connecting rod. A vertically axial limiting spring is provided on the rear side of the connecting rod. The upper end of the limiting spring is fixedly connected to the housing. A vertically oriented guide rod is provided inside the housing, allowing the connecting rod to slide up and down on the guide rod. A rotatable limiting rod is provided on the front side of the connecting rod. A limiting groove is provided inside the housing. A limiting protrusion that can be engaged in the limiting groove is provided on the limiting rod. The upper end of the limiting rod passes through the housing and is provided with a pull ring. A front-to-back axial rotating shaft is provided inside the housing. A worm gear that can mesh with a worm is coaxially provided on the rotating shaft. The front and rear ends of the rotating shaft pass through the housing and are fixedly connected to the traveling wheels.

[0009] Preferably, the guiding mechanism includes a guide shell, a rotating frame, guide wheels, a third driven bevel gear, a third driving bevel gear, a rotating shaft, and a rotating handle. The guide shell is provided on the front side of the housing. The rotating frame, which is rotatable along the vertical axis, is provided inside the guide shell. Guide wheels are provided on the front and rear sides of the lower end of the rotating frame. The third driven bevel gear is coaxially provided on the upper end of the rotating frame. The third driving bevel gear, which is rotatable along the horizontal axis and can mesh with the third driven bevel gear, is provided inside the guide shell. The rotating shaft is provided on the left end of the third driving bevel gear. The left end of the rotating shaft extends out of the guide shell and is provided with a rotating handle.

[0010] Preferably, the output end of the first motor is coaxially provided with a driving pulley, and the lower side of the stirring roller is coaxially provided with a driven pulley, and the driving pulley and the driven pulley are connected by a transmission belt.

[0011] Preferably, the front and rear sides of the slurry hopper are respectively provided with through grooves, and the front and rear sides of the lower end of the slurry hopper are respectively provided with fixing springs. The lower ends of the two fixing springs are respectively provided with sliders, and the opposite ends of the two sliders are respectively inserted into the grooves on their corresponding sides and fixedly connected to the grouting pipe.

[0012] Preferably, a connecting spring is provided at the lower end of the box body, and a semi-circular compaction block is provided at the lower end of the connecting spring to compact the slurry.

[0013] Preferably, the lower end of the fixed cylinder is provided with adsorption shells on the front and rear sides respectively, which can adsorb dust, and the front and rear sides of the box are respectively provided with vacuum cleaners. The two adsorption shells are respectively connected to the vacuum cleaners on their corresponding sides, and the vacuum cleaners are electrically connected to the control panel.

[0014] It also includes a method for repairing concrete cracks, comprising the following steps:

[0015] S1: Prepare for drilling by starting the shooting module through the control panel, moving the device to the crack where drilling is required, and moving the fixed cylinder directly above the starting position of the drilling.

[0016] S2: During the drilling process, push the handle to the far right of the reversing groove, and start the first motor, the second motor, and the vacuum cleaner through the control panel. The drill rod begins to enlarge the crack. Adjust the position of the handle in the reversing groove to adjust the depth of the downward drilling. Use the vacuum cleaner to absorb the generated dust.

[0017] S3: During the grooving process, rotate the pull ring to engage the lower meshing block with the upper meshing block. At this time, the traveling wheel rotates. Rotate the rotating handle to make the guide wheel swing and guide the traveling wheel's direction of travel, and make the drill rod continue to grooving along the crack. During the grooving process, continue to adjust the position of the push handle in the reversing groove and adjust the depth of the groove according to the depth of the crack.

[0018] S4: Complete the grooving and reaming process. After the grooving and reaming is completed, move the push handle to the left end of the reversing groove. At this time, the drill rod is stored in the fixed cylinder. Then push the push handle to the middle position of the reversing groove to confine the drill rod in the fixed cylinder.

[0019] S5: During the grouting process, the grout is injected into the grout hopper. The device is moved again so that the grouting pipe travels along the direction of the drilled groove and injects grout into the groove. At the same time, the filling grout is scraped and pressed by the compaction block.

[0020] The technical solution of the present invention can achieve the following beneficial effects: (1) A drill rod, a first driving gear, a first driven gear, and a transmission rod are set up. The drill rod is used to drill the crack, which is beneficial for crack treatment and facilitates the subsequent adhesion of slurry to the inner wall of the groove, which is beneficial for improving the repair effect. (2) A sliding mechanism and a reversing mechanism are set up. The drilling depth of the drill rod is controlled by the sliding mechanism, which is beneficial for drilling according to the depth of the crack. At the same time, the reversing mechanism is used to adjust the up and down movement direction of the drill rod, which is beneficial for controlling the drill rod to be stored and controlling the drill rod to drill the crack. (3) A driving mechanism and a guiding mechanism are set up. The driving mechanism is used to guide the drilling depth of the drill rod. The guide mechanism drives the walking wheels to move forward, which is conducive to drilling along the direction of the crack. At the same time, it is also conducive to injecting grout into the groove through the grouting pipe. Combining the drilling process with the grouting process improves the repair efficiency of concrete cracks and greatly simplifies the crack repair process. (4) A dust collector and an adsorption shell are set up to absorb the dust generated during the drilling process through the adsorption shell and the dust collector, which is conducive to environmental protection and improves the quality of the operating environment for operators. (5) A compaction block is set up to facilitate the compaction of the injected grout and improve the grouting effect. The technical solution of the present invention has a wide application prospect in the field of concrete crack repair technology. Attached Figure Description

[0021] Figure 1 This is an isometric view of the present invention.

[0022] Figure 2 This is a rear-view axonometric drawing of the present invention.

[0023] Figure 3 This is a bottom-view axonometric drawing of the present invention.

[0024] Figure 4 This is the front view full sectional isometric view of the present invention.

[0025] Figure 5 This is a rear-view full-section isometric view of the present invention.

[0026] Figure 6 This is the right-side full-section isometric view of the present invention.

[0027] Figure 7 This is a front axonometric view of the internal components of the housing of the present invention.

[0028] Figure 8 This is a rear axonometric view of the internal components of the housing of the present invention.

[0029] Figure 9 For the present invention Figure 3 A magnified view of A in the middle.

[0030] Figure 10 For the present invention Figure 4 A magnified view of B in the middle.

[0031] Figure 11 For the present invention Figure 4 A magnified view of C.

[0032] Figure 12 For the present invention Figure 4 A magnified view of D.

[0033] Figure 13 For the present invention Figure 6 A magnified view of E in the middle.

[0034] Figure 14 For the present invention Figure 6 Enlarged view of F in the middle.

[0035] The components are as follows: 1. Housing; 2. First motor; 3. First drive gear; 4. Fixed cylinder; 5. Drill rod; 6. Annular protrusion; 7. First driven gear; 8. Transmission rod; 9. Traveling wheel; 10. Slurry hopper; 11. Stirring roller; 12. Stirring rod; 13. Feeding roller; 14. Grouting pipe; 15. Camera module; 16. Control panel; 17. Connecting rod; 18. Rotating screw; 19. Guide plate; 20. First driven bevel gear; 21. Second motor; 22. Sliding rod; 23. Sliding cylinder; 24. First drive bevel gear; 25. Second drive bevel gear; 26. Reversing rod; 27. Reversing groove; 28. Slot; 29. ​​Limiting spring; 30. Locking post. 31. Push handle; 32. Second driving gear; 33. Second driven gear; 34. Lower meshing block; 35. Worm gear; 36. Upper meshing block; 37. Connecting rod; 38. Limiting spring; 39. Guide rod; 40. Limiting rod; 41. Limiting groove block; 42. Limiting protrusion; 43. Pull ring; 44. Rotating shaft; 45. Worm gear; 46. Guide housing; 47. Rotating frame; 48. Guide wheel; 49. Third driven bevel gear; 50. Rotating shaft; 51. Rotating handle; 52. Driving pulley; 53. Driven pulley; 54. Fixed spring; 55. Connecting spring; 56. Compactor block; 57. Adsorption housing; 58. Vacuum cleaner; 59. Third driving bevel gear. Detailed Implementation

[0036] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0037] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] like Figures 1-14The illustrated concrete crack repair device includes a housing 1. In one specific embodiment, a first motor 2, operating vertically, is installed inside the housing 1. The first motor 2 is bolted to the middle of the housing 1. A first drive gear 3 is coaxially mounted on the output end of the first motor 2 and fixedly connected to the output end of the first motor 2. A vertically oriented fixed cylinder 4 is installed inside the housing 1, welded to the right side of the first motor 2. The lower end of the fixed cylinder 4 penetrates the housing 1, and a movable drill rod 5 is installed inside it. Specifically, the drill rod 5 can rotate and move vertically within the fixed cylinder 4. The drill rod 5 is used to enlarge the concrete crack and simultaneously groove along the crack. By injecting grout into the groove, the crack is repaired. Multiple annular protrusions 6 are provided on the drill rod 5. Specifically, the annular protrusions 6 are provided on the periphery of the drill rod 5 and are evenly distributed on the drill rod 5. Through the annular protrusions 6, the drilled groove has an uneven inner wall on both sides, which is conducive to increasing the bonding area between the grout and the original concrete, improving the bonding effect of the concrete layer, and making the repaired concrete layer more stable. The upper end of the fixed cylinder 4 is provided with a first driven gear 7 that can mesh with the first driving gear 3. The first driven gear 7 is rotatably connected to the upper end of the fixed cylinder 4. The first driven gear 7 and the inner wall of the fixed cylinder 4 rotate through the bearing. The upper end of the drill rod 5 is fixedly welded with a transmission rod 8. The cross-section of the transmission rod 8 is square, and its upper end passes through the first driven gear 7. When the first driven gear 7 rotates, it drives the transmission rod 8 to rotate, and the transmission rod 8 drives the drill rod 5 to rotate.

[0039] like Figures 1-14The concrete crack repair device shown in this embodiment includes a sliding mechanism inside the housing 1, which controls the up-and-down sliding of the transmission rod 8. The sliding mechanism includes a connecting rod 17, a rotating screw 18, a first driven bevel gear 20, a second motor 21, a sliding rod 22, a sliding cylinder 23, a first driving bevel gear 24, and a second driving bevel gear 25. The upper end of the transmission rod 8 passes through the first driven gear 7 and is connected to the connecting rod 17. The connecting rod 17 and the transmission rod 8 are rotatably connected, allowing the transmission rod 8 to rotate on the connecting rod 17. A rotating screw 18 with vertical axial rotation is rotatably connected to the rear side of the housing 1. The lower end of the rotating screw 18 is connected to the bottom of the housing 1. The connecting rod 17 is rotated and connected to the rotating screw 18. The other end of the connecting rod 17 is fitted onto the rotating screw 18 and threadedly connected to it. A guide plate 19 is welded to the bottom of the housing 1 on the outer periphery of the rotating screw 18, pointing vertically. The connecting rod 17 is located between the guide plate 19 and the rotating screw 18 and can slide on the guide plate 19. The guide plate 19 guides the sliding of the connecting rod 17, facilitating its vertical movement. The rotation of the rotating screw 18 drives the vertical movement of the connecting rod 17. A first driven bevel gear 20 is coaxially fixedly connected to the upper end of the rotating screw 18. A second motor 21, pointing horizontally, is bolted to the housing 1. A sliding rod 22 is coaxially fixed to the output end of the machine 21. A sliding cylinder 23 is provided on the sliding rod 22, which can slide on the sliding rod 22. The sliding rod 22 has a square cross-section. The right side of the sliding rod 22 is inserted into the sliding cylinder 23 and can slide left and right inside the sliding cylinder 23. A first driving bevel gear 24 is provided on the sliding cylinder 23, located to the left of the first driven bevel gear 20 and capable of meshing with it. The first driving bevel gear 24 is fixedly connected to the outer periphery of the left side of the fixed cylinder 4. A second driving bevel gear 25 is provided on the right side of the sliding cylinder 23, located to the right of the first driven bevel gear 20 and capable of meshing with it. The second driving bevel gear 25 is fixedly connected to the right side of the fixed cylinder 4. On the outer periphery of the side, when the sliding mechanism is working, the first driven bevel gear 20 has three states: it rotates when the first driving bevel gear 24 meshes with the first driven bevel gear 20 and the second driving bevel gear 25 does not mesh with the first driven bevel gear 20; it does not rotate when neither the first driving bevel gear 24 nor the second driving bevel gear 25 meshes with the first driven bevel gear 20; and it rotates in the opposite direction when the first driving bevel gear 24 does not mesh with the first driven bevel gear 20 and the second driving bevel gear 25 meshes with the first driven bevel gear 20. By changing the three rotation states of the first driven bevel gear 20, the drilling direction of the drill rod 5 can be adjusted.

[0040] like Figures 1-14The concrete crack repair device shown in this embodiment includes a reversing mechanism on the sliding cylinder 23 that can adjust the meshing state of the first driven bevel gear 20. The reversing mechanism includes a reversing rod 26, a reversing groove 27, a locking groove 28, a limiting spring 29, a locking pin 30, and a pushing handle 31. The reversing rod 26 is located on the left side of the sliding cylinder 23 and is rotatably connected to the sliding cylinder 23. When the reversing rod 26 moves left and right, it causes the sliding cylinder 23 and its upper components to slide left and right, thereby changing the meshing state of the first driven bevel gear 20. The upper end of the housing 1 has a vertically penetrating reversing groove 27. The length of the reversing groove 27 is equal to the distance between the first driving bevel gear 24 and the second driving bevel gear 25. A reversing groove 27 is formed on the rear side wall inside the reversing groove 27. There are three slots 28 evenly distributed in the left and right direction and connected to the reversing groove 27. The reversing rod 26 is provided with a front-to-back axial limiting spring 29. The limiting spring 29 is fixedly connected to the rear side of the reversing rod 26. The end of the limiting spring 29 away from the reversing rod 26 is fixedly connected to a locking post 30 that can be inserted into the slot 28. Specifically, the rear side of the reversing rod 26 has a fixing hole with a rearward opening. The locking post 30 can slide back and forth in the fixing hole. The rear side of the locking post 30 is spherical. The edge of the slot 28 is chamfered to facilitate the sliding of the locking post 30 into and out of the slot 28. The upper end of the reversing rod 26 extends out of the reversing groove 27 and is fixedly attached to a push handle 31. The positions of the three slots 28 in the reversing groove 27 correspond to the three working states of the drill rod 5 (drilling upward, drilling downward, and slotting).

[0041] like Figures 1-14The concrete crack repair device shown in this embodiment has wheels 9 on both the left and right sides of the housing 1. Inside the housing 1 is a drive mechanism that controls the rotation or stopping of the wheels 9. The drive mechanism includes a second driving gear 32, a second driven gear 33, a lower meshing block 34, a worm gear 35, an upper meshing block 36, a connecting rod 37, a limiting spring 38, a limiting rod 40, a limiting groove block 41, a limiting protrusion 42, a pull ring 43, a rotating shaft 44, and a worm gear 45. The output end of the first motor 2 is equipped with the second driving gear 32, which is located above the first driving gear 32. Inside the housing 1 is a second driven gear 33 that meshes with the second driving gear 32, and the second driven gear 33 is rotatably connected inside the housing 1. On the mounting plate of the part, a lower meshing block 34 is fixedly welded to the upper end of the second driven gear 33. The upper end of the lower meshing block 34 has multiple lower side teeth evenly distributed along its circumference. A rotatable worm 35 is rotatably connected inside the housing 1. The lower end of the worm 35 is rotatably connected to the bottom of the housing 1, allowing the worm 35 to rotate inside the housing 1. The upper end of the worm 35 is slidably connected to an upper meshing block 36 that can slide up and down. Specifically, the upper meshing block 36 has a downward-facing sliding hole. The upper end of the worm 35 is inserted into the sliding hole and can slide up and down within it. The lower end of the upper meshing block 36 has multiple upper side teeth evenly distributed along its circumference that can engage with the lower side teeth. The number of upper side teeth is the same as the number of lower side teeth. During movement, the lower engaging block 34 and the upper engaging block 36 engage, at which time the lower engaging block 34 can drive the upper engaging block 36 to rotate synchronously. A connecting rod 37 that can move up and down is provided inside the housing 1. Specifically, the connecting rod 37 is in the front-to-back direction. The upper end of the upper engaging block 36 is rotatably connected to the connecting rod 37. A limiting spring 38 with vertical axial direction is welded to the rear side of the connecting rod 37. The upper end of the limiting spring 38 is fixedly connected to the housing 1. A guide rod 39 with vertical direction is provided inside the housing 1. The connecting rod 37 and the guide rod 39 inside the housing 1 are slidably connected, which facilitates the up-and-down movement of the connecting rod 37. A rotatable limiting rod 40 with vertical axial direction is rotatably connected to the front side of the connecting rod 37. A limiting groove is fixedly connected inside the housing 1. Block 41 has a limiting groove. A limiting protrusion 42, which can be rotatably engaged in the limiting groove, is welded onto the limiting rod 40. When the limiting protrusion 42 is in the limiting groove, the limiting spring 38 is compressed, the limiting rod 40 rotates in the opposite direction, and the limiting protrusion 42 can disengage from the limiting groove. The upper end of the limiting rod 40 passes through the housing 1 and is welded with a pull ring 43. A rotating shaft 44 with a front-rear axial direction is rotatably connected inside the housing 1. A worm gear 45 that can mesh with the worm 35 is coaxially fixedly connected to the rotating shaft 44. The front and rear ends of the rotating shaft 44 pass through the housing 1 and are fixedly connected to the traveling wheel 9. When the mechanism is in motion, if the traveling wheel 9 is to move, the pull ring 43 is rotated. The pull ring 43 drives the limiting protrusion 42 to disengage from the limiting groove 28. At this time, under the action of the limiting spring 38...The limiting rod 40 moves downward, causing the connecting rod 37 to move downward. The connecting rod 37 then causes the upper meshing block 36 to move downward. The upper meshing block 36 meshes with the lower meshing block 34 and rotates synchronously. Simultaneously, as the first motor 2 rotates, it drives the second driving gear 32 to rotate. The second driving gear 32 drives the second driven gear 33 to rotate. The second driven gear 33 drives the lower meshing block 34 to rotate, which in turn drives the worm gear 35 to rotate. The worm gear 35 drives the worm wheel 45 to rotate, which in turn drives the rotating shaft 44 to rotate. The rotating shaft 44 then drives the traveling wheel 9 to rotate and move forward in parallel.

[0042] like Figures 1-14 The concrete crack repair device shown in this embodiment has a guide mechanism on the front side of the housing 1 to guide the travel direction of the traveling wheel 9. The guide mechanism includes a guide shell 46, a rotating frame 47, a guide wheel 48, a third driven bevel gear 49, a third driving bevel gear 59, a rotating shaft 50, and a rotating handle 51. The guide shell 46 is fixedly welded to the front side of the housing 1. The rotating frame 47, which is rotatable in the upper and lower axial directions, is rotatably connected inside the guide shell 46. The guide wheel 48 is rotatably connected to the front and rear sides of the lower end of the rotating frame 47. The rotation of the rotating frame 47 causes the guide wheel 48 to swing, thereby causing a deviation in the travel direction. The third driven bevel gear 49 is coaxially fixedly connected to the upper end of the rotating frame 47. The third driving bevel gear, which is rotatable in the left and right axial directions and can mesh with the third driven bevel gear 49, is provided inside the guide shell 46. 59. Specifically, the rotating shaft 50 is rotatably connected to the guide housing 46. The right end of the rotating shaft 50 is inserted into the guide housing 46 and is coaxially fixedly connected to the third driving bevel gear 59. The third driving bevel gear 59 and the third driven bevel gear 49 are in a meshing state. The left end of the rotating shaft 50 extends out of the guide housing 46 and is fixedly connected to the rotating handle 51. When this mechanism is in motion, by rotating the rotating handle 51, the rotating handle 51 drives the rotating shaft 50 to rotate. The rotating shaft 50 drives the third driving bevel gear 59 to rotate. The third driving bevel gear 59 drives the third driven bevel gear 49 to rotate. The third driven bevel gear 49 drives the rotating frame 47 to rotate. The rotating frame 47 drives the guide wheel 48 to swing, thereby adjusting the travel direction of the traveling wheel 9. Through the guiding mechanism, it is beneficial to make the drill rod 5 drill and slot along the direction of the crack.

[0043] like Figures 1-14The concrete crack repair device shown in this embodiment includes a slurry hopper 10 fixedly welded inside a housing 1. The upper end of the slurry hopper 10 penetrates the housing 1 and has an observation hole for easy inspection of the slurry's condition. A rotatable stirring roller 11 is rotatably connected inside the slurry hopper 10, located in the center of the slurry hopper 10. Multiple stirring rods 12 are arranged around the periphery of the stirring roller 11 to facilitate stirring and mixing the slurry. A conveying roller 13 is coaxially fixedly connected to the lower end of the stirring roller 11. The slurry hopper 10 is equipped with spiral conveying teeth to facilitate the injection of slurry into the slot. The lower end of the slurry hopper 10 penetrates the housing 1 and is movably connected to the inner side of the slurry pipe 14. The slurry pipe 14 can slide up and down at the outlet end of the slurry hopper 10. Specifically, the front and rear sides of the slurry hopper 10 are respectively provided with through-slots. The front and rear sides of the lower end of the slurry hopper 10 are respectively fixedly connected with vertically axially fixed springs 54. The lower ends of the two fixed springs 54 are respectively fixedly connected with sliders, and the opposite ends of the two sliders are respectively inserted into the corresponding sliding grooves on their respective sides. The trough is fixedly connected to the grouting pipe 14. Both sliders are located in the middle of the grouting pipe 14. The output end of the first motor 2 is coaxially fixedly connected to the drive pulley 52, which is located above the second drive gear 32. The lower side of the stirring roller 11 is coaxially fixedly connected to the driven pulley 53. The drive pulley 52 and the driven pulley 53 are connected by a transmission belt. The slurry hopper 10 is provided with a trough shell that communicates with the inside of the box 1. The driven pulley 53 and the transmission belt are located inside the trough shell, which is beneficial for their protection. The first motor 2 is fixedly connected to the grouting pipe 14. The output end of the first motor 2 is coaxially fixedly connected to the drive pulley 52, which is located above the second drive gear 32. The driven pulley 53 and the transmission belt are located inside the trough shell. When machine 2 rotates, it drives the drive pulley 52 to rotate, which in turn drives the driven pulley 53 to rotate. The driven pulley 53 drives the stirring roller 11 to rotate, which in turn drives the conveying roller 13 to rotate. The conveying roller 13 drives the slurry to be output downwards. When the slurry moves downwards, it impacts the upper end of the grouting pipe 14, which in turn causes the grouting pipe 14 to move up and down along the slurry hopper 10. This helps to generate vibration and impact on the slurry in the slot, which helps to fully fill the slot and improve the grouting effect.

[0044] like Figures 1-14The concrete crack repair device shown in this embodiment has the following features: A camera module 15 is fixedly connected to the lower end of the housing 1, capable of capturing images of the drill rod 5 and the grouting pipe 14. This facilitates the observation of the drilling and grouting processes, and also allows for observation of the crack direction. A control panel 16 is fixedly connected to the upper end of the housing 1. The images captured by the camera module 15 are transmitted to the control panel 16 for easy observation by the operator. The camera module 15, the first motor 2, and the second motor 21 are all electrically connected to the control panel 16 for easy control. A connecting spring 55 is fixedly connected to the lower end of the housing 1. The lower end of the fixed cylinder 4 is fixedly connected to a semi-circular compaction block 56 that can compact the slurry. The compaction block 56 contacts the ground during the movement, which is conducive to compacting and scraping the overflowing slurry, making it more flat. The front and rear sides of the lower end of the fixed cylinder 4 are respectively fixedly connected to the adsorption shells 57 that can adsorb dust. The front and rear sides of the box 1 are respectively fixedly connected to the vacuum cleaners 58. The two adsorption shells 57 are respectively connected to the vacuum cleaners 58 on their corresponding sides. The vacuum cleaners 58 are electrically connected to the control panel 16. The dust generated during the drilling process is absorbed through the adsorption shells 57 and the vacuum cleaners 58, which is beneficial to environmental protection and improves the quality of the operating environment for operators.

[0045] It also includes a method for repairing concrete cracks, comprising the following steps:

[0046] S1: Prepare for drilling by starting the shooting module 15 via the control panel 16, moving the device to the crack where drilling is required, and moving the fixed cylinder 4 directly above the starting position of the drilling.

[0047] S2: During the drilling process, push the push handle 31 to the rightmost end of the reversing groove 27, and start the first motor 2, the second motor 21, and the vacuum cleaner 58 through the control panel 16. The drill rod 5 begins to enlarge the crack. Adjust the position of the push handle 31 in the reversing groove 27 to adjust the depth of the downward drilling. The vacuum cleaner 58 absorbs the generated dust.

[0048] S3: During the grooving process, rotate the pull ring 43 to engage the lower meshing block 34 with the upper meshing block 36. At this time, the traveling wheel 9 rotates. Rotate the rotating handle 51, and the guide wheel 48 swings and guides the traveling wheel 9 in the direction of travel. The drill rod 5 continues to grooving along the crack. During the grooving process, continue to adjust the position of the push handle 31 in the reversing groove 27 and adjust the depth of the groove according to the depth of the crack.

[0049] S4: Complete the grooving and reaming process. After the grooving and reaming process is completed, move the push handle 31 to the left end of the reversing groove 27. At this time, the drill rod 5 is stored in the fixed cylinder 4. Then push the push handle 31 to the middle position of the reversing groove 27 to confine the drill rod 5 in the fixed cylinder 4.

[0050] S5: During the grouting process, the grout is injected into the grout hopper 10. The device is moved again so that the grouting pipe 14 moves along the direction of the drilled groove and injects the grout into the groove. At the same time, the compaction block 56 scrapes and presses the filled grout.

[0051] The working principle of this device is as follows: When in use, the device is moved to the drilling position, and the first motor 2 is started. The first motor 2 drives the first driving gear 3 to rotate, which in turn drives the first driven gear 7 to rotate. The first driven gear 7 drives the transmission rod 8 to rotate, which in turn drives the drill rod 5 to rotate. The second motor 21 is then started, which drives the sliding rod 22 to rotate. The sliding rod 22 drives the sliding cylinder 23 to rotate. At this time, the push handle 31 is pushed, which moves the reversing rod 26. The reversing rod 26 causes the sliding cylinder 23 to slide, which in turn causes the first driving bevel gear 24 and the second driving bevel gear 25 to slide, thereby causing one of them to engage with the first driven bevel gear 20. When meshing occurs, the first driven bevel gear 20 rotates, which in turn drives the rotating screw 18 to rotate. The rotating screw 18 then drives the connecting rod 17 to move up and down, which in turn drives the transmission rod 8 to move up and down. The transmission rod 8 then drives the drill rod 5 to move up and down and adjust the hole depth. When horizontal drilling is required, the push handle 31 is pushed to the position of the intermediate slot 28 in the reversing slot 27. At this time, neither the first driving bevel gear 24 nor the second driving bevel gear 25 meshes with the first driven bevel gear 20, and the drill rod 5 does not move up and down. To make the traveling wheel 9 move, the pull ring 43 is rotated. The pull ring 43 drives the limiting protrusion 42 to disengage from the limiting slot 28. At this time, under the action of the limiting spring 38, the limiting rod 40... The motor moves downwards, causing the connecting rod 37 to move downwards as well. The connecting rod 37 then moves the upper meshing block 36 downwards, causing it to mesh with the lower meshing block 34 and rotate synchronously. Simultaneously, as the first motor 2 rotates, it drives the second driving gear 32 to rotate, which in turn drives the second driven gear 33 to rotate. The second driven gear 33 then drives the lower meshing block 34 to rotate, which in turn drives the worm gear 35 to rotate. The worm gear 35 then drives the worm wheel 45 to rotate, which in turn drives the rotating shaft 44 to rotate. The rotating shaft 44 then drives the traveling wheel 9 to rotate and move forward. To adjust the direction of travel of the traveling wheel 9, the handle 51 is rotated. Rotating the handle 51 causes the rotating shaft 50 to rotate. The first motor 2 drives the third driving bevel gear 59 to rotate, which in turn drives the third driven bevel gear 49 to rotate. The driven bevel gear 49 then drives the rotating frame 47 to rotate, which in turn drives the guide wheel 48 to swing, thus adjusting the direction of travel of the traveling wheel 9. During drilling and grooving, the dust drilled from the drill rod 5 is absorbed by the adsorption housing 57. The control panel 16 displays images of the drilled hole taken by the imaging module 15 for operator observation. If grouting is required, grout is injected into the grout hopper 10. The device is then moved again, causing the grouting pipe 14 to travel along the drilled groove and inject grout into it. Simultaneously, as the first motor 2 rotates, it drives the driving pulley 52 to rotate.The driving pulley 52 drives the driven pulley 53 to rotate, which in turn drives the stirring roller 11 to rotate. The stirring roller 11 then drives the conveying roller 13 to rotate, which in turn drives the slurry downwards. As the slurry moves downwards, it impacts the upper end of the grouting pipe 14, causing the grouting pipe 14 to move up and down along the slurry hopper 10. This vibration impacts the slurry in the slots, fully filling them. The compaction block 56 contacts the ground during its movement, compacting and scraping any overflowing slurry to make the surface smoother.

[0052] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. 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 all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A concrete crack repair device, comprising a housing (1), characterized in that, The housing (1) is equipped with a first motor (2) in the vertical direction. The output end of the first motor (2) is coaxially equipped with a first driving gear (3). The housing (1) is equipped with a fixed cylinder (4) in the vertical direction. The lower end of the fixed cylinder (4) passes through the housing (1) and is equipped with a movable drill rod (5). The drill rod (5) has multiple annular protrusions (6). The upper end of the fixed cylinder (4) is equipped with a first driven gear (7) that can mesh with the first driving gear (3). The upper end of the drill rod (5) is fixedly connected to a transmission rod (8). The housing (1) is equipped with a sliding mechanism that can control the up and down sliding of the transmission rod (8). The left and right sides of the housing (1) are respectively equipped with traveling wheels (9). The housing (1) is equipped with a mechanism that can control the rotation or stop of the traveling wheels (9). The drive mechanism is provided with a guide mechanism on the front side of the housing (1) to guide the travel direction of the walking wheel (9). The housing (1) is provided with a slurry hopper (10) and a rotatable stirring roller (11) inside the slurry hopper (10). Multiple stirring rods (12) are provided on the periphery of the stirring roller (11). A conveying roller (13) is coaxially provided at the lower end of the stirring roller (11). The lower end of the slurry hopper (10) passes through the housing (1) and is movably connected to the grouting pipe (14). The lower end of the housing (1) is provided with a shooting module (15) that can take pictures of the drill rod (5) and the grouting pipe (14). The upper end of the housing (1) is provided with a control panel (16). The shooting module (15), the first motor (2), and the second motor (21) are all electrically connected to the control panel (16).

2. The concrete crack repair device according to claim 1, characterized in that, The sliding mechanism includes a connecting rod (17), a rotating screw (18), a guide plate (19), a first driven bevel gear (20), a second motor (21), a sliding rod (22), a sliding cylinder (23), a first driving bevel gear (24), and a second driving bevel gear (25). The upper end of the transmission rod (8) passes through the first driven gear (7) and is provided with a connecting rod (17). A rotating screw (18) that is axially rotatable is provided on the rear side of the housing (1). The other end of the connecting rod (17) is threadedly connected to the rotating screw (18). A guide plate (19) is provided inside the housing (1). The connecting rod (17) can slide up and down on the guide plate (19). The rotating screw (18) A first driven bevel gear (20) is coaxially arranged at the upper end. A second motor (21) is arranged inside the housing (1). A sliding rod (22) is arranged at the output end of the second motor (21). A sliding cylinder (23) that can slide on the sliding rod (22) is arranged on the sliding rod (22). A first driving bevel gear (24) that is located to the left of the first driven bevel gear (20) and can mesh with it is arranged on the sliding cylinder (23). A second driving bevel gear (25) that is located to the right of the first driven bevel gear (20) and can mesh with it is arranged on the right side of the sliding cylinder (23). A reversing mechanism that can adjust the meshing state of the first driven bevel gear (20) is arranged on the sliding cylinder (23).

3. The concrete crack repair device according to claim 2, characterized in that, The reversing mechanism includes a reversing rod (26), a reversing groove (27), a slot (28), a limiting spring (29), a locking post (30), and a push handle (31). The reversing rod (26) is provided on the left side of the sliding cylinder (23). The upper end of the housing (1) is provided with a reversing groove (27) that runs vertically through the shaft. Three slots (28) are provided on the rear side wall of the reversing groove (27) that are evenly distributed in the left and right directions and communicate with the reversing groove (27). The reversing rod (26) is provided with a limiting spring (29) that runs in the front and rear axial directions. The end of the limiting spring (29) away from the reversing rod (26) is provided with a locking post (30) that can be inserted into the slot (28). The upper end of the reversing rod (26) extends out of the reversing groove (27) and is provided with a push handle (31).

4. The concrete crack repair device according to claim 1, characterized in that, The drive mechanism includes a second driving gear (32), a second driven gear (33), a lower meshing block (34), a worm gear (35), an upper meshing block (36), a connecting rod (37), a limiting spring (38), a guide rod (39), a limiting rod (40), a limiting groove block (41), a limiting protrusion (42), a pull ring (43), a rotating shaft (44), and a worm gear (45). The output end of the first motor (2) is provided with the second driving gear (32), and the housing (1) is provided with a mechanism that can engage with the second driving gear. (32) A second driven gear (33) is engaged. The upper end of the second driven gear (33) is provided with a lower meshing block (34). The upper end of the lower meshing block (34) is provided with a plurality of lower side teeth evenly distributed along its circumference. The housing (1) is provided with a rotatable worm (35). The upper end of the worm (35) is provided with an upper meshing block (36) that can slide up and down. The lower end of the upper meshing block (36) is provided with a plurality of upper side teeth evenly distributed along its circumference that can engage with the lower side teeth. The housing (1) The inner part is provided with a vertically movable connecting rod (37). The upper end of the upper meshing block (36) is rotatably connected to the connecting rod (37). The rear side of the connecting rod (37) is provided with a vertically axially limiting spring (38). The upper end of the limiting spring (38) is fixedly connected to the housing (1). The housing (1) is provided with a vertically oriented guide rod (39). The connecting rod (37) can slide up and down on the guide rod (39). The front side of the connecting rod (37) is provided with a rotatable limiting rod (40). The housing (1) is provided with a limiting groove (41), and the limiting rod (40) is provided with a limiting protrusion (42) that can be engaged in the limiting groove (41). The upper end of the limiting rod (40) passes through the housing (1) and is provided with a pull ring (43). The housing (1) is provided with a rotating shaft (44) with a front-rear axial direction. The rotating shaft (44) is coaxially provided with a worm wheel (45) that can mesh with the worm (35). The front and rear ends of the rotating shaft (44) pass through the housing (1) and are fixedly connected to the traveling wheel (9).

5. A concrete crack repair device according to claim 1, characterized in that, The guiding mechanism includes a guide shell (46), a rotating frame (47), a guide wheel (48), a third driven bevel gear (49), a third driving bevel gear (59), a rotating shaft (50), and a rotating handle (51). The front side of the housing (1) is provided with a guide shell (46). The guide shell (46) is provided with a rotating frame (47) that is rotatable in the vertical direction. The front and rear sides of the lower end of the rotating frame (47) are respectively provided with guide wheels (48). The upper end of the rotating frame (47) is coaxially provided with a third driven bevel gear (49). The guide shell (46) is provided with a third driving bevel gear (59) that is axial in the left and right direction and can mesh with the third driven bevel gear (49). The left end of the third driving bevel gear (59) is provided with a rotating shaft (50). The left end of the rotating shaft (50) extends out of the guide shell (46) and is provided with a rotating handle (51).

6. A concrete crack repair device according to claim 1, characterized in that, The output end of the first motor (2) is coaxially provided with a drive pulley (52), and the lower side of the stirring roller (11) is coaxially provided with a driven pulley (53). The drive pulley (52) and the driven pulley (53) are connected by a transmission belt.

7. A concrete crack repair device according to claim 1, characterized in that, The slurry hopper (10) has a through groove on both the front and back sides. The slurry hopper (10) has a fixed spring (54) on both the front and back sides at the lower end. The two fixed springs (54) have sliders at their lower ends. The opposite ends of the two sliders are inserted into the grooves on their corresponding sides and are fixedly connected to the grouting pipe (14).

8. A concrete crack repair device according to claim 1, characterized in that, The lower end of the box (1) is provided with a connecting spring (55), and the lower end of the connecting spring (55) is provided with a semi-circular compaction block (56) that can compact the slurry.

9. A concrete crack repair device according to claim 1, characterized in that, The lower end of the fixed cylinder (4) is provided with adsorption shells (57) on the front and rear sides respectively, which can adsorb dust. The front and rear sides of the box (1) are provided with vacuum cleaners (58). The two adsorption shells (57) are connected to the vacuum cleaners (58) on their corresponding sides respectively. The vacuum cleaners (58) are electrically connected to the control panel (16).

10. A method for repairing concrete cracks according to any one of claims 3, 4, 8, and 9, characterized in that, Includes the following steps: S1: Prepare for drilling by starting the shooting module (15) through the control panel (16), moving the device to the crack where drilling is required, and moving the fixed cylinder (4) directly above the starting position of the drilling. S2: During the drilling process, push the push handle (31) to the rightmost end of the reversing groove (27), and start the first motor (2), the second motor (21), and the vacuum cleaner (58) respectively through the control panel (16). The drill rod (5) begins to enlarge the crack. Adjust the position of the push handle (31) in the reversing groove (27) to adjust the depth of the downward drilling. The dust generated is absorbed by the vacuum cleaner (58). S3: During the grooving process, rotate the pull ring (43) to engage the lower meshing block (34) with the upper meshing block (36). At this time, the traveling wheel (9) rotates. Rotate the rotating handle (51) to swing the guide wheel (48) and guide the traveling wheel (9) in the direction of travel. The drill rod (5) continues to grooving along the crack. During the grooving process, continue to adjust the position of the push handle (31) in the reversing groove (27) and adjust the depth of the groove according to the depth of the crack. S4: After the grooving and reaming process is completed, move the push handle (31) to the left end of the reversing groove (27). At this time, the drill rod (5) is stored in the fixed cylinder (4). Then push the push handle (31) to the middle position of the reversing groove (27) so that the drill rod (5) is confined in the fixed cylinder (4). S5: During the grouting process, the grout is injected into the grout hopper (10), and the device is moved again so that the grouting pipe (14) moves along the direction of the drilled slot and injects the grout into the slot. At the same time, the filling grout is scraped and pressed by the compaction block (56).

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