A road surface gap repair device

Abstract

The application discloses a road surface crack repairing device which comprises a moving assembly and a guiding assembly arranged at the front end of the moving assembly; and a crack expanding assembly arranged at the front part of the moving assembly. The crack expanding assembly is used to replace the manual crack expanding operation of workers, thereby improving the overall automation degree of crack repairing and the crack repairing quality. In cooperation with the guiding assembly, the crack expanding assembly is free from the joint operation, and the moving assembly is directly pushed and pulled, so that the crack repairing can be performed.

Description

Technical Field

[0001] This invention relates to a repair device, and more particularly to a road surface crack repair device. Background Technology

[0002] Cracking is the appearance of fissures in road surfaces, a common type of road damage. It seriously affects road safety, the aesthetics of urban roads, and also disrupts traffic. The causes of cracks in concrete pavements are multifaceted, resulting from the combined effects of various factors. Generally, substandard material quality, unreasonable pavement construction design, and neglect of quality control during construction can all lead to road surface cracks, negatively impacting the quality of road construction projects.

[0003] When road surface cracks appear, repair is usually necessary, with grouting being a common method. However, the automation level in crack repair is not high, and some procedures still require manual operation by workers. The quality of the workers' skills directly affects the quality of the repair. For example, in crack widening, workers typically use impact drills to manually widen the cracks.

[0004] To address the issue of low automation in the road surface crack repair process, we have developed a road surface crack repair device. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a road surface crack repair device.

[0006] The objective of this invention is achieved as follows:

[0007] A road surface crack repair device includes a movable component and a guide component disposed at the front end of the movable component;

[0008] A joint widening assembly is disposed at the front of the movable assembly.

[0009] Furthermore, the movable component includes a base plate, casters, and handrails. The casters are installed at each corner of the bottom surface of the base plate, and the handrails are installed on the rear side of the top surface of the base plate.

[0010] Furthermore, the guiding assembly includes a guiding mounting frame, a guiding screw, a guiding handwheel, a guiding moving plate, a guiding telescopic rod, a guiding spring, a guiding ear plate, and a guiding wheel. The moving assembly has a guiding groove at its front end, within which the guiding mounting frame is installed. The guiding screw is screwed to the top surface of the guiding mounting frame. The guiding handwheel is located at the top of the guiding screw, and the guiding moving plate is located at the bottom of the guiding screw. A plurality of guiding telescopic rods are arranged on the bottom surface of the guiding moving plate, and the guiding ear plate is located at the other end of each guiding telescopic rod. The guiding spring is installed between the guiding ear plate and the guiding moving plate. The guiding wheel is rotatably connected inside the guiding ear plate, and the guiding wheel rolls along the gap to provide guidance.

[0011] Furthermore, the joint widening assembly includes an upper mounting frame, a transmission box, an electrical box, a motor, a transmission shaft, and a joint widening cutter head. The front of the moving assembly has a mounting groove, in which the upper mounting frame is disposed. The transmission box is disposed within the upper mounting frame, and the electrical box is disposed within the transmission box. The motor is disposed within the electrical box, and the output shaft of the motor extends to the outside of the electrical box and is fixedly connected to the transmission shaft. The joint widening cutter head is mounted on the bottom surface of the transmission shaft.

[0012] Furthermore, it also includes a joint widening adjustment component disposed on the upper part of the joint widening component.

[0013] Furthermore, the joint widening adjustment assembly includes an adjustment rod, an adjustment handle, a limiting plate, a limiting slider, an adjustment base plate, and an adjustment push rod. The limiting plate is located on the upper part of the inner cavity of the transmission box. The limiting plate is arc-shaped and is slidably connected to the limiting slider along its length. The adjustment rod is inserted through the limiting slider. The top of the adjustment rod extends to the upper part of the upper mounting frame and is provided with the adjustment handle. The bottom of the adjustment rod is provided with the adjustment base plate. Several adjustment push rods are installed on the bottom surface of the adjustment base plate. The joint widening assembly is located at the output end of the adjustment push rod.

[0014] Furthermore, the adjustment handle includes an upper handle, a lower handle, and a connecting rod. The connecting rod is disposed between the upper handle and the lower handle. The lower handle has a fixing groove that matches the top of the adjusting rod. The top surface of the fixing groove has a limiting protrusion. The bottom surface of the upper handle has an inner groove that matches the top of the adjusting rod. The bottom surface of the lower handle has a fixing protrusion. The top surface of the upper mounting frame has a fixing groove that matches the fixing protrusion.

[0015] Furthermore, it also includes a cleaning component disposed in the middle of the moving component.

[0016] Furthermore, the cleaning assembly includes a negative pressure suction assembly and a roller brush assembly.

[0017] Furthermore, the negative pressure suction assembly includes a collection box, a negative pressure rod, a suction nozzle, and a negative pressure pump. The collection box is set inside the upper mounting frame. Multiple negative pressure pumps are installed on the top of the collection box. The negative pressure rod is set on the bottom surface of the collection box. The suction nozzle is installed on the top surface of the negative pressure rod. The suction nozzle, the negative pressure rod, and the inner cavity of the collection box are all connected in sequence. The other end of the suction nozzle faces the slit widening assembly.

[0018] Furthermore, the roller brush assembly includes a protective frame, a roller, roller brush bristles, and roller brush protrusions. The protective frame is disposed within the upper mounting frame, and the roller is rotatably connected within the protective frame. The roller brush bristles and roller brush protrusions are evenly spaced on the sidewall of the roller.

[0019] Furthermore, it also includes a crack filling assembly disposed at the rear of the movable assembly.

[0020] Furthermore, the crack filling assembly includes a storage tank, a crack filling frame, crack filling ear plates, a crack filling nozzle, and a pressure pump. The storage tank is located at the rear of the top surface of the movable assembly, and the crack filling frame is located at the rear of the bottom surface of the movable assembly. The crack filling ear plates are located inside the crack filling frame, and the crack filling nozzle is rotatably connected inside the crack filling ear plates. The crack filling nozzle is connected to the storage tank through a pipe, and the pressure pump is installed on the outside of the storage tank.

[0021] Furthermore, it also includes a crack filling adjustment component, which is disposed on the crack filling component.

[0022] Furthermore, the crack filling adjustment assembly includes a crack filling screw, a crack filling handwheel, and a crack filling adjustment frame. An adjustment pipe is provided through the middle of the storage box. The crack filling screw is rotatably connected inside the adjustment pipe. The crack filling handwheel is provided at the top of the crack filling screw. The bottom of the crack filling screw is rotatably connected to the crack filling adjustment frame. The crack filling adjustment frame is slidably sleeved on the outside of the crack filling nozzle.

[0023] Advantages of this invention:

[0024] This application replaces manual gap widening operations by setting up a gap widening component, which improves the overall automation level of gap repair and the quality of gap repair. At the same time, with the help of the guide component, the gap widening component is eliminated from the gap alignment operation, and gap repair can be carried out by simply pushing and pulling the component. Attached Figure Description

[0025] Figure 1 A schematic diagram of a road surface crack repair device. Figure 1 .

[0026] Figure 2 A schematic diagram of a road surface crack repair device. Figure 2 .

[0027] Figure 3 This is a cross-sectional structural diagram of a road surface crack repair device.

[0028] Figure 4 This is a schematic diagram of the guide component structure.

[0029] Figure 5 This is a schematic diagram of the joint widening assembly and the joint widening adjustment assembly.

[0030] Figure 6 This is a schematic diagram of the cleaning component structure.

[0031] Figure 7 This is a schematic diagram of the crack sealing assembly and crack sealing adjustment assembly.

[0032] Figure 8 A schematic diagram for adjusting the handle structure.

[0033] In the diagram: 1. Moving component, 11. Base plate, 111. Guide groove, 112. Mounting groove, 12. Casters, 13. Handrail;

[0034] 2. Guide assembly; 21. Guide mounting frame; 22. Guide screw; 23. Guide handwheel; 24. Guide moving plate; 25. Guide telescopic rod; 26. Guide spring; 27. Guide ear plate; 28. Guide wheel;

[0035] 3. Joint widening assembly; 31. Upper mounting frame; 311. Fixing groove; 32. Transmission box; 33. Electrical box; 34. Motor; 35. Transmission shaft; 36. Joint widening cutter head;

[0036] 4. Joint widening adjustment assembly; 41. Adjusting rod; 42. Adjusting handle; 421. Upper handle; 4211. Inner groove; 422. Lower handle; 4221. Fixing protrusion; 423. Connecting rod; 424. Limiting protrusion; 43. Limiting plate; 44. Limiting slider; 45. Adjusting base plate; 46. Adjusting push rod;

[0037] 5. Sweeping assembly; 51. Negative pressure suction assembly; 511. Recycling bin; 512. Negative pressure bar; 513. Suction nozzle; 514. Negative pressure pump; 52. Roller brush assembly; 521. Protective frame; 522. Roller; 523. Roller brush bristles; 524. Roller brush ridges;

[0038] 6. Crack filling assembly; 61. Storage tank; 62. Crack filling frame; 63. Crack filling ear plate; 64. Crack filling nozzle; 65. Pressure pump;

[0039] 7. Crack filling adjustment assembly; 71. Crack filling screw; 72. Crack filling handwheel; 73. Crack filling adjustment frame. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0041] This application provides a road surface crack repair device.

[0042] Example 1, as Figure 1-8 As shown.

[0043] A road surface crack repair device includes a movable component 1, which facilitates the movement of the entire crack repair device.

[0044] Furthermore, the movable component 1 includes a base plate 11, casters 12, and a handrail 13. The casters 12 are installed at each corner of the bottom surface of the base plate 11, and the handrail 13 is installed on the rear side of the top surface of the base plate 11. When repairing gaps, the entire gap repair equipment can be moved simply by pulling the handrail 13.

[0045] It also includes a guide component 2, which is disposed at the front end of the moving component 1 and serves to guide the gap repair device so that it moves along the gap direction.

[0046] Further, the guide assembly 2 includes a guide mounting frame 21, a guide screw 22, a guide handwheel 23, a guide moving plate 24, a guide telescopic rod 25, a guide spring 26, a guide ear plate 27, and a guide wheel 28. The moving assembly 1 has a guide groove 111 at its front end, within which the guide mounting frame 21 is disposed. The guide screw 22 is screwed to the top surface of the guide mounting frame 21. The guide handwheel 23 is disposed at the top of the guide screw 22, and the guide moving plate 24 is disposed at the bottom of the guide screw 22. A plurality of guide telescopic rods 25 are disposed on the bottom surface of the guide moving plate 24. The guide ear plate 27 is disposed at the other end of each guide telescopic rod 25. The guide spring 26 is installed between the guide ear plate 27 and the guide moving plate 24. The guide wheel 28 is rotatably connected inside the guide ear plate 27, and the guide wheel 28 rolls along the gap to provide guidance. In use, rotating the guide handwheel 23 causes the guide screw 22 to move the guide wheel 28 up and down, allowing it to move into the gap. This allows the device to move along the gap when pulled. The guide telescopic rod 25 and the guide spring 26 provide the guide wheel 28 with a certain range of vertical movement, making the gap repair device move more smoothly along the gap.

[0047] It also includes a seam widening component 3, which is located at the front of the moving component 1 to complete the seam widening operation.

[0048] Furthermore, the seam widening assembly 3 includes an upper mounting frame 31, a transmission box 32, an electrical box 33, a motor 34, a transmission shaft 35, and a seam widening cutter head 36. The moving assembly 1 has a mounting groove 112 at its front, within which the upper mounting frame 31 is positioned. The transmission box 32 is positioned within the upper mounting frame 31, and the electrical box 33 is installed within the transmission box 32. The motor 34 is installed within the electrical box 33. The motor 34 can be selected by those skilled in the art, but preferably a motor 34 with overload protection. The output shaft of the motor 34 extends to the outside of the electrical box 33 and is fixedly connected to the transmission shaft 35. The seam widening cutter head 36 is mounted on the bottom surface of the transmission shaft 35. The motor 34 drives the seam widening cutter head 36 through the connecting shaft to widen the seam.

[0049] It also includes a joint widening adjustment component 4, which is located on the upper part of the joint widening component 3 to adjust the position of the joint widening cutter head 36.

[0050] Further, the joint widening adjustment assembly 4 includes an adjustment rod 41, an adjustment handle 42, a limiting plate 43, a limiting slider 44, an adjustment base plate 45, and an adjustment push rod 46. The limiting plate 43 is located on the upper part of the inner cavity of the transmission box 32. The limiting plate 43 is arc-shaped and slidably connected to the limiting slider 44 along its length. The adjustment rod 41 is threaded through the limiting slider 44. The top of the adjustment rod 41 extends to the upper part of the upper mounting frame 31 and is equipped with the adjustment handle 42. The bottom of the adjustment rod 41 is equipped with the adjustment base plate 45. Several adjustment push rods 46 are mounted on the bottom surface of the adjustment base plate 45. The output end of the adjustment push rod 46 is equipped with the joint widening assembly 3. Pulling the adjustment handle 42 allows the joint widening cutter head 36 to move along the shape of the limiting plate 43 via the adjustment rod 41. The movable range of the limiting plate 43 is set according to the joint widening angle.

[0051] Furthermore, the adjusting handle 42 includes an upper handle 421, a lower handle 422, and a connecting rod 423. The connecting rod 423 is disposed between the upper handle 421 and the lower handle 422. The lower handle 422 has a fixing groove that matches the top end of the adjusting rod 41, and a limiting protrusion 424 is provided on the top surface of the fixing groove. The bottom surface of the upper handle 421 has an inner groove 4211 that matches the top end of the adjusting rod 41. The bottom surface of the lower handle 422 has a fixing protrusion 4221, and the top surface of the upper mounting frame 31 has a fixing groove 311 that matches the fixing protrusion 4221. These structures are used to fix the position of the adjusting handle 42, and the fixing is released when adjustment is needed. When fixing, press the upper handle 421 firmly. At this time, the adjusting rod 41 passes through the limiting protrusion 424 until it enters the inner groove 4211 on the bottom surface of the upper handle 421. At the same time, the fixing protrusion 4221 enters the fixing groove 311, and the adjusting handle 42 is fixed by friction. In addition, the bottom surface of the lower handle 422 contacts the top surface of the upper mounting frame 31, and the adjusting handle 42 is fixed by friction. The double fixing is very reliable.

[0052] It also includes a cleaning component 5, which is located in the middle of the moving component 1, to clean the gap after the gap is widened.

[0053] The cleaning component 5 includes a negative pressure suction component 51 and a roller brush component 52. These components respectively clean dust, small debris, and larger pebbles.

[0054] Furthermore, the negative pressure suction assembly 51 includes a collection box 511, a negative pressure rod 512, a suction nozzle 513, and a negative pressure pump 514. The collection box 511 is disposed within the upper mounting frame 31, and multiple negative pressure pumps 514 are installed on the top of the collection box 511. The negative pressure pumps 514 must be selected to have a strong suction force so that the suction nozzle 513 can suck in smaller gravel and dust generated during the crack widening process, and even larger gravel. The negative pressure rod 512 is disposed on the bottom surface of the collection box 511, and the suction nozzle 513 is installed on the top surface of the negative pressure rod 512. The suction nozzle 513, the negative pressure rod 512, and the inner cavity of the collection box 511 are all sequentially connected. The other end of the suction nozzle 513 faces the crack widening assembly 3, thereby preventing gravel and dust generated during crack widening from splashing and being directly sucked into the suction nozzle 513.

[0055] Furthermore, the roller brush assembly 52 includes a protective frame 521, a roller 522, roller brush bristles 523, and roller brush protrusions 524. The protective frame 521 is disposed within the upper mounting frame 31, and the roller 522 is rotatably connected within the protective frame 521. The roller brush bristles 523 and roller brush protrusions 524 are evenly spaced on the sidewall of the roller 522. The roller 522 is powered by an external power source, such as an electric motor. As the roller 522 rotates, the roller brush protrusions 524, in conjunction with the roller brush bristles 523, clean the gaps. The longer roller brush bristles 523 can extend into the gaps to sweep out various stones and debris.

[0056] It also includes a crack filling component 6, which is located at the rear of the movable component 1, and injects the prepared crack filling grout into the crack to complete the crack repair.

[0057] Furthermore, the crack filling assembly 6 includes a storage tank 61, a crack filling frame 62, a crack filling ear plate 63, a crack filling nozzle 64, and a pressure pump 65. The storage tank 61 is located at the rear of the top surface of the movable assembly 1, and the crack filling frame 62 is located at the rear of the bottom surface of the movable assembly 1. The crack filling ear plate 63 is located inside the crack filling frame 62, and the crack filling nozzle 64 is rotatably connected inside the crack filling ear plate 63. The crack filling nozzle 64 is connected to the storage tank 61 through a pipe, and the pressure pump 65 is installed on the outside of the storage tank 61. The pressure pump 65 pressurizes the storage tank 61, causing the crack filling slurry to flow from the storage tank 61 through the pipe into the crack filling nozzle 64, and then sprayed from the crack filling nozzle 64 into the crack to complete the crack repair.

[0058] It also includes a crack filling adjustment component 7, which is disposed on the crack filling component 6 to adjust the angle of the crack filling nozzle 64 and the depth to which it extends into the crack.

[0059] Furthermore, the crack filling adjustment assembly 7 includes a crack filling screw 71, a crack filling handwheel 72, and a crack filling adjustment frame 73. An adjustment tube is provided through the middle of the storage tank 61, and the crack filling screw 71 is rotatably connected inside the adjustment tube. The crack filling handwheel 72 is located at the top of the crack filling screw 71, and the bottom end of the crack filling screw 71 is rotatably connected to the crack filling adjustment frame 73. The crack filling adjustment frame 73 is slidably fitted onto the outside of the crack filling nozzle 64. Rotating the crack filling handwheel 72 adjusts the height of the crack filling adjustment frame 73 via the crack filling screw 71. Since the crack filling adjustment frame 73 is fitted onto the outside of the crack filling nozzle, its vertical movement can change both the angle of the crack filling nozzle and the height of its nozzle tip.

[0060] When using this invention:

[0061] Adjust the height of the guide wheel so that it is inside the gap.

[0062] The gap repair operation begins. The motor starts, driving the gap widening blade to widen the gap.

[0063] At the same time, adjust the angle and position of the widening blade according to the gap condition.

[0064] The gravel and dust generated during the widening of the gaps are sucked into the recycling bin by the subsequent suction nozzle through negative pressure; then the roller drives the brush bristles and the roller brush protrusions to clean the gaps for the last time, cleaning up the larger gravel and residual debris.

[0065] Finally, a pressure pump is used to pressurize the storage tank, causing the grout to flow from the tank through pipes into the grout nozzle, and then be sprayed from the nozzle into the crack to complete the crack repair.

[0066] Additionally, the angle and height of the grouting nozzle can be adjusted according to the condition of the gaps.

[0067] It should be noted that, in this document, relational terms such as “first” and “second” are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0068] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims. It should be understood that this application is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A road surface crack repair device, comprising a movable component, characterized in that: It also includes a guide component disposed at the front end of the moving component; The guiding assembly includes a guiding mounting frame, a guiding screw, a guiding handwheel, a guiding moving plate, a guiding telescopic rod, a guiding spring, a guiding ear plate, and a guiding wheel. The moving assembly has a guiding groove at its front end, within which the guiding mounting frame is installed. The guiding screw is screwed to the top surface of the guiding mounting frame. The guiding handwheel is located at the top of the guiding screw, and the guiding moving plate is located at the bottom of the guiding screw. A plurality of guiding telescopic rods are arranged on the bottom surface of the guiding moving plate, and the guiding ear plate is located at the other end of each guiding telescopic rod. The guiding spring is installed between the guiding ear plate and the guiding moving plate. The guiding wheel is rotatably connected inside the guiding ear plate, and the guiding wheel rolls along the gap to provide guidance. A joint widening assembly is disposed at the front of the movable assembly; The joint widening assembly includes an upper mounting frame, a transmission box, an electrical box, a motor, a drive shaft, and a joint widening cutter head. The moving assembly has a mounting groove at the front, in which the upper mounting frame is placed. The transmission box is placed inside the upper mounting frame, and the electrical box is installed inside the transmission box. The motor is installed inside the electrical box, and the output shaft of the motor extends to the outside of the electrical box and is fixedly connected to the drive shaft. The joint widening cutter head is mounted on the bottom surface of the drive shaft. It also includes a joint widening adjustment component, which is disposed on the upper part of the joint widening component; The joint widening adjustment assembly includes an adjustment rod, an adjustment handle, a limiting plate, a limiting slider, an adjustment base plate, and an adjustment push rod. The limiting plate is located on the upper part of the inner cavity of the transmission box. The limiting plate is arc-shaped and is slidably connected to the limiting slider along its length. The adjustment rod is inserted through the limiting slider. The top of the adjustment rod extends to the upper part of the upper mounting frame and is provided with the adjustment handle. The bottom of the adjustment rod is provided with the adjustment base plate. Several adjustment push rods are installed on the bottom surface of the adjustment base plate. The joint widening assembly is located at the output end of the adjustment push rod. The adjustment handle includes an upper handle, a lower handle, and a connecting rod. The connecting rod is positioned between the upper and lower handles. The lower handle has a fixing groove that matches the top of the adjustment rod, and the top surface of the fixing groove has a limiting protrusion. The bottom surface of the upper handle has an inner groove that matches the top of the adjustment rod, and the bottom surface of the lower handle has a fixing protrusion. The top surface of the upper mounting frame has a fixing groove that matches the fixing protrusion. These structures fix the position of the adjustment handle, and release the fixing when adjustment is needed. When fixing, pressing the upper handle forcefully causes the adjustment rod to pass through the limiting protrusion until it enters the inner groove on the bottom surface of the upper handle. Simultaneously, the fixing protrusion enters the fixing groove, and the adjustment handle is fixed by friction. Furthermore, the bottom surface of the lower handle contacts the top surface of the upper mounting frame, and the adjustment handle is fixed by friction. This double fixing provides a very secure hold. It also includes a crack filling assembly disposed at the rear of the movable assembly; It also includes a crack filling adjustment component, which is installed on the crack filling component to adjust the angle of the crack filling nozzle and the depth to which it extends into the crack.

2. The road surface crack repair equipment according to claim 1, characterized in that: The movable component includes a base plate, casters, and handrails. The casters are installed at each corner of the bottom surface of the base plate, and the handrails are installed on the rear side of the top surface of the base plate.

3. The road surface crack repair device according to claim 1, characterized in that: It also includes a cleaning component, which is disposed in the middle of the moving component.

4. The road surface crack repair equipment according to claim 3, characterized in that: The cleaning assembly includes a negative pressure suction assembly and a roller brush assembly.

5. A road surface crack repair device according to claim 4, characterized in that: The negative pressure suction assembly includes a collection box, a negative pressure rod, a suction nozzle, and a negative pressure pump. The collection box is set inside the upper mounting frame. Multiple negative pressure pumps are installed on the top of the collection box. The negative pressure rod is set on the bottom surface of the collection box. The suction nozzle is installed on the top surface of the negative pressure rod. The suction nozzle, the negative pressure rod, and the inner cavity of the collection box are all connected in sequence. The other end of the suction nozzle faces the slit widening assembly.

6. A road surface crack repair device according to claim 4, characterized in that: The roller brush assembly includes a protective frame, a roller, roller brush bristles, and roller brush ridges. The protective frame is disposed within the upper mounting frame, and the roller is rotatably connected within the protective frame. The roller brush bristles and roller brush ridges are evenly spaced on the side wall of the roller.

7. A road surface crack repair device according to claim 1, characterized in that: The crack filling assembly includes a storage tank, a crack filling frame, crack filling ear plates, a crack filling nozzle, and a pressure pump. The storage tank is located at the rear of the top surface of the movable assembly, and the crack filling frame is located at the rear of the bottom surface of the movable assembly. The crack filling ear plates are located inside the crack filling frame, and the crack filling nozzle is rotatably connected inside the crack filling ear plates. The crack filling nozzle is connected to the storage tank through a pipe, and the pressure pump is installed on the outside of the storage tank.

8. A road surface crack repair device according to claim 7, characterized in that: The crack filling adjustment assembly includes a crack filling screw, a crack filling handwheel, and a crack filling adjustment frame. An adjustment tube is provided through the middle of the storage box, and the crack filling screw is rotatably connected inside the adjustment tube. The crack filling handwheel is located at the top of the crack filling screw, and the bottom of the crack filling screw is rotatably connected to the crack filling adjustment frame. The crack filling adjustment frame is slidably fitted onto the outside of the crack filling nozzle. By rotating the crack filling handwheel, the height of the crack filling adjustment frame is adjusted through the crack filling screw. Since the crack filling adjustment frame is fitted onto the outside of the crack filling nozzle, the up and down movement of the crack filling adjustment frame can change both the angle of the crack filling nozzle and the height of its nozzle end.

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