An asphalt pavement crack repair device

CN224647422UActive Publication Date: 2026-08-18NINGBO LANDSCAPE ENG CO LTD
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Patent Information

Application Number
CN202521253054.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-08-18
Estimated Expiration
2035-06-18

AI Technical Summary

Technical Problem

[0004]为了弥补以上不足,本实用新型提供了一种沥青路面裂缝修复装置,旨在改善现有技术中高压水流冲刷裂缝,会导致裂缝内积水,影响后续修复材料的黏结的问题

Benefits of technology

1、本实用新型中,通过启动气泵气体通过软管输送到高压喷嘴,接着,电机二启动,驱动齿轮三旋转,齿轮三与齿条啮合,使齿条在支撑板内壁前侧上下滑动,带动高压喷嘴移动,去除内部污垢,清理完毕后,存储箱中的沥青通过连接管输送到挤出喷头,挤出喷头挤出沥青填充裂缝完成修复,从而避免了因现有技术中高压水流冲刷裂缝,会导致裂缝内积水,影响后续修复材料的黏结的问题发生。

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Abstract

This utility model relates to the field of water conservancy engineering technology and discloses an asphalt pavement crack repair device, including a base plate. A storage box is fixedly connected to the middle of the top wall of the base plate. A connecting pipe is connected to the rear side of the outer wall of the storage box. An extrusion nozzle is installed at the rear end of the outer wall of the connecting pipe. An air pump is fixedly connected to the front side of the upper middle part of the outer wall of the storage box. A hose is connected to the output end of the air pump. A support plate is fixedly connected to the front side of the lower middle part of the outer wall of the storage box. A second motor is fixedly connected to the top of the support plate. A third gear is fixedly connected to the output end of the second motor. In this utility model, asphalt in the storage box is transported to the extrusion nozzle through the connecting pipe. The extrusion nozzle extrudes asphalt to fill the crack and complete the repair, thereby avoiding the problem of water accumulation in the crack due to high-pressure water flow washing away the crack in the prior art, which affects the adhesion of subsequent repair materials.
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Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, and in particular to an asphalt pavement crack repair device. Background Technology

[0002] Water conservancy projects are engineering projects constructed to control and regulate surface water and groundwater in nature to achieve the purpose of eliminating harm and promoting benefits. Concrete construction crack detection equipment for water conservancy projects is a professional device used to detect crack information in concrete structures. It utilizes the propagation characteristics of ultrasonic waves in concrete. When ultrasonic waves encounter cracks, they will undergo reflection, refraction, and diffraction. By analyzing the propagation time and amplitude parameters of ultrasonic waves, the depth and location of cracks can be determined.

[0003] A search revealed Chinese patent publication number CN220246627U, which discloses an asphalt pavement crack repair device. The device includes a workbench with an opening extending through its upper surface. Rollers are rotatably mounted between the inner walls of opposite sides of the opening. Multiple fixed platforms are equidistantly mounted on the circumference of the rollers. Multiple mounting holes are equidistantly formed on the outer surface of each fixed platform. Multiple grooving cutters are detachably mounted on each fixed platform through these mounting holes. In use, the user selects an appropriate number of grooving cutters based on the crack width and then uses bolts to secure the selected platform. The grooving blade is tightened through the mounting holes and fixedly installed on the fixed platform. The drive mechanism drives the grooving blade to rotate, which can remove dirt inside the crack. The drive mechanism also drives the brush roller to rotate, so that the brush roller can clean up the cut waste in time, ensuring the repair effect of the road crack. However, mechanical brushing uses a rotating brush head to reach into the crack to scrape off dirt, but it is not suitable for narrow cracks and will damage the crack edges. High-pressure water washing uses high-pressure water to flush the crack, which can remove some of the bonded dirt, but it will cause water to accumulate in the crack, affecting the adhesion of subsequent repair materials. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an asphalt pavement crack repair device, which aims to improve the problem in the prior art where high-pressure water flow washes away cracks, causing water to accumulate in the cracks and affecting the adhesion of subsequent repair materials.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an asphalt pavement crack repair device, comprising a base plate, a storage box fixedly connected to the middle of the top wall of the base plate, a connecting pipe connected to the rear side of the outer wall of the storage box, an extrusion nozzle installed at the rear end of the outer wall of the connecting pipe, an air pump fixedly connected to the front side of the upper middle part of the outer wall of the storage box, a hose connected to the output end of the air pump, a support plate fixedly connected to the front side of the lower middle part of the outer wall of the storage box, a second motor fixedly connected to the top of the support plate, a third gear fixedly connected to the output end of the second motor, a rack slidably connected to the front side of the inner wall of the support plate, the third gear meshing with the rack, a high-pressure nozzle fixedly connected to the bottom of the rack, the bottom end of the hose connected to the high-pressure nozzle, and a stirring mechanism installed on the right side of the outer wall of the base plate, the stirring mechanism being used to stir the asphalt inside the storage box.

[0006] The above technical solution works as follows: By turning on the air pump, the air pump transmits gas to the high-pressure nozzle through a hose. Then, the second motor drives the third gear at the output end to rotate. Since the third gear meshes with the rack, the rotation of the third gear causes the rack to slide up and down on the front side of the inner wall of the support plate, thereby causing the high-pressure nozzle fixed at the bottom of the rack to move synchronously. The gas sprayed from the high-pressure nozzle blows out the concrete cracks, removing the long-term accumulated dirt and impurities from the cracks, thus cleaning them. After the cracks are cleaned, the storage tank contains asphalt for repairing the cracks. The asphalt in the storage tank is output to the extrusion nozzle through a connecting pipe. The extrusion nozzle then extrudes the asphalt and fills it into the cleaned cracks to achieve repair.

[0007] As a further description of the above technical solution: The stirring mechanism includes a motor, which is mounted on the right side of the outer wall of the base plate. A gear is fixedly connected to the output end of the motor. A threaded stirring rod is fixedly connected to the left end of the outer wall of the gear. A gear is rotatably connected to the upper right side of the outer wall of the storage box. A chain is installed on the outer wall of the gear. A stirring rod is fixedly connected to the left end of the outer wall of the gear.

[0008] The above technical solution works as follows: Motor 1 drives gear 2 at its output end to rotate. Since a threaded stirring rod is fixedly connected to the left end of gear 2's outer wall, the rotation of gear 2 causes the threaded stirring rod to rotate within the storage tank. During rotation, the threaded stirring rod stirs and propels the asphalt within the storage tank, achieving a preliminary stirring effect. Gear 1 is rotatably connected to the upper right side of the storage tank's outer wall. A chain is installed on the outer wall of gear 1 and is connected to gear 2. Therefore, when gear 2 rotates under the drive of motor 1, it drives gear 1 to rotate through the chain's transmission, causing the stirring rod at the left end of gear 1's outer wall to rotate within the storage tank, further stirring the asphalt within the storage tank, expanding the stirring range, and improving the stirring effect.

[0009] As a further description of the above technical solution: The top of the storage box is fixedly connected to a hinge, and a sealing plate is rotatably connected to the other side of the outer wall of the hinge.

[0010] Through the above technical solution, the sealing plate allows staff to easily observe the function inside the storage box.

[0011] As a further description of the above technical solution: A handle is fixedly connected to the top of the sealing plate, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0012] The above technical solution enables the handle to be easily opened and closed by staff, and the sealing plate serves its intended function.

[0013] As a further description of the above technical solution: A push handle is fixedly connected to the rear side of the outer wall of the base plate, and a protective sleeve is fixedly connected to the outer wall of the push handle.

[0014] The above technical solution allows for the use of a push handle fixedly connected to the rear side of the outer wall of the base plate, which facilitates the movement and use of the equipment by the staff.

[0015] As a further description of the above technical solution: The bottom of the base plate is fixedly connected to multiple supporting short plates at equal intervals, and universal wheels are installed in the middle of the outer wall of the supporting short plates.

[0016] Through the above technical solution, the casters enable staff to easily move the equipment to different locations for use.

[0017] As a further description of the above technical solution: A screw is threadedly connected to the right side of the outer wall of the storage box, and a hook is threadedly connected to the outer wall of the screw.

[0018] The above technical solution allows for the convenient hanging of tools used daily and for cleaning via hooks on the right side of the storage box's outer wall.

[0019] As a further description of the above technical solution: A hollow box is fixedly connected to the top rear side of the base plate, and a drawer is slidably connected inside the hollow box. The above technical solution allows for the convenient storage of tools used daily and for maintenance through sliding drawers inside the hollow box.

[0020] As a further description of the above technical solution: A second screw is threaded onto the left side of the outer wall of the storage box, and a warning sign is threaded onto the outer wall of the second screw. Through the above technical solution, warning signs can remind staff of precautions when operating and using equipment, thereby reducing the probability of danger.

[0021] As a further description of the above technical solution: A second handle is fixedly connected to the rear side of the outer wall of the drawer, and a second anti-slip sleeve is fixedly connected to the outer wall of the second handle. Through the above technical solution, handle two can facilitate the use of the drawer by staff to open and close it.

[0022] This utility model has the following beneficial effects: 1. In this utility model, gas is delivered to the high-pressure nozzle through a hose by starting the air pump. Then, motor two starts and drives gear three to rotate. Gear three meshes with rack and pinion, causing rack and pinion to slide up and down on the front side of the inner wall of the support plate, which drives the high-pressure nozzle to move and remove internal dirt. After cleaning, asphalt in the storage tank is delivered to the extrusion nozzle through the connecting pipe. The extrusion nozzle expels asphalt to fill the crack and complete the repair. This avoids the problem of water accumulation in the crack due to high-pressure water flow washing away the crack in the prior art, which affects the adhesion of subsequent repair materials.

[0023] 2. In this utility model, after the motor is started, it drives the gear two to rotate, which in turn causes the threaded stirring rod to stir the asphalt in the storage box, achieving initial agitation. At the same time, the gear one on the outer wall of the storage box is connected to the gear two through a chain, so that the stirring rod rotates synchronously to achieve a more uniform mixing effect, thereby avoiding the phenomenon of asphalt settling and accumulating after a long period of accumulation. Attached Figure Description

[0024] Figure 1 This is a front view of an asphalt pavement crack repair device proposed in this utility model; Figure 2 This is a perspective view of an asphalt pavement crack repair device proposed in this utility model; Figure 3 This is a side view of an asphalt pavement crack repair device proposed in this utility model; Figure 4 This is a rear view of an asphalt pavement crack repair device proposed in this utility model; Figure 5 This is a partial structural schematic diagram of an asphalt pavement crack repair device proposed in this utility model. Figure 6 This is a schematic diagram of the mixing mechanism of an asphalt pavement crack repair device proposed in this utility model.

[0025] Legend: 1. Base plate; 2. Stirring mechanism; 201. Motor 1; 202. Chain; 203. Gear 1; 204. Stirring rod; 205. Threaded stirring rod; 206. Gear 2; 3. Motor 2; 4. Handle 1; 5. Anti-slip sleeve 1; 6. Air pump; 7. Gear 3; 8. High-pressure nozzle; 9. Casters; 10. Support plate; 11. Hook; 12. Screw 1; 13. Protective cover; 14. Push handle; 15. Hinge; 16. Storage box; 17. Sealing plate; 18. Hose; 19. Rack; 20. Screw 2; 21. Warning sign; 22. Extrusion nozzle; 23. Support plate; 24. Connecting pipe; 25. Hollow box; 26. Handle 2; 27. Drawer box; 28. Anti-slip sleeve 2. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figure 1 , Figure 3 and Figure 5This utility model provides an embodiment of an asphalt pavement crack repair device, comprising a base plate 1, a storage box 16 fixedly connected to the middle of the top wall of the base plate 1, a connecting pipe 24 connected to the rear side of the outer wall of the storage box 16, an extrusion nozzle 22 installed at the rear end of the outer wall of the connecting pipe 24, an air pump 6 fixedly connected to the upper front side of the outer wall of the storage box 16, a hose 18 connected to the output end of the air pump 6, a support plate 23 fixedly connected to the lower front side of the outer wall of the storage box 16, a motor 23 fixedly connected to the top of the support plate 23, a gear 3 7 fixedly connected to the output end of the motor 23, and a rack 19 slidably connected to the front side of the inner wall of the support plate 23. 9. The bottom of the rack 19 is fixedly connected to a high-pressure nozzle 8. The bottom end of the hose 18 is connected to the high-pressure nozzle 8. The right side of the outer wall of the base plate 1 is equipped with a mixing mechanism 2. The mixing mechanism 2 is used to mix the asphalt inside the storage box 16. The top of the storage box 16 is fixedly connected to a hinge 15. The other side of the outer wall of the hinge 15 is rotatably connected to a sealing plate 17. The sealing plate 17 allows the staff to easily observe the inside of the storage box 16. The top of the sealing plate 17 is fixedly connected to a handle 4. The outer wall of the handle 4 is fixedly connected to an anti-slip sleeve 5. The handle 4 allows the staff to easily open and close the sealing plate 17. Specifically, by turning on the air pump 6, the air pump 6 transmits gas to the high-pressure nozzle 8 through the hose 18. Then, the motor 2 3 drives the gear 3 7 at the output end to rotate. Since the gear 3 7 meshes with the rack 19, the rotation of the gear 3 7 causes the rack 19 to slide up and down on the front side of the inner wall of the support plate 23, thereby causing the high-pressure nozzle 8 fixed at the bottom of the rack 19 to move synchronously. The gas sprayed from the high-pressure nozzle 8 blows out the concrete cracks, blowing out the long-term accumulated dirt and impurities in the cracks, thus achieving the purpose of cleaning the cracks. After the cracks are cleaned, the storage box 16 stores the materials used for crack repair. The asphalt in the storage tank 16 is output to the extrusion nozzle 22 through the connecting pipe 24. The extrusion nozzle 22 then extrudes the asphalt and fills the cleaned cracks to achieve repair. A hinge 15 is fixedly connected to the top of the storage tank 16. A sealing plate 17 is rotatably connected to the other side of the outer wall of the hinge 15. The sealing plate 17 allows the staff to easily observe the inside of the storage tank 16. A handle 4 is fixedly connected to the top of the sealing plate 17. An anti-slip sleeve 5 is fixedly connected to the outer wall of the handle 4. The handle 4 allows the staff to easily open and close the sealing plate 17.

[0028] Reference Figure 2 , Figure 4 and Figure 6The stirring mechanism 2 includes a motor 201, which is mounted on the right side of the outer wall of the base plate 1. A gear 206 is fixedly connected to the output end of the motor 201. A threaded stirring rod 205 is fixedly connected to the left end of the outer wall of the gear 206. A gear 203 is rotatably connected to the upper right side of the outer wall of the storage box 16. A chain 202 is installed on the outer wall of the gear 203. A stirring rod 204 is fixedly connected to the left end of the outer wall of the gear 203. A push handle 14 is fixedly connected to the rear side of the outer wall of the base plate 1. The push handle 14 is fixedly connected to the rear side of the outer wall of the base plate 1, which facilitates the operation of the equipment by the staff. A protective sleeve 13 is fixedly connected to the outer wall of the push handle 14. Multiple support short plates 10 are fixedly connected at equal intervals at the bottom of the base plate 1. A caster wheel 9 is installed in the middle of the outer wall of the support short plate 10, which facilitates the operation of the staff to move the equipment to different locations for use. Specifically, by turning on motor 201, the output gear 206 is driven to rotate. Since a threaded stirring rod 205 is fixedly connected to the left end of the outer wall of gear 206, the rotation of gear 206 will drive the threaded stirring rod 205 to rotate inside the storage tank 16. During the rotation, the threaded stirring rod 205 can stir and push the asphalt in the storage tank 16, achieving a preliminary stirring effect. Gear 203 is rotatably connected to the upper right side of the outer wall of the storage tank 16. A chain 202 is installed on the outer wall of gear 203, and the chain 202 is connected to gear 206. Therefore, when gear 206 rotates under the drive of motor 201, it will be driven by the chain 202. The gear 203 is driven to rotate, which causes the stirring rod 204 on the left side of the outer wall of the gear 203 to rotate inside the storage tank 16, thus more extensively stirring the asphalt inside the storage tank 16, expanding the stirring range, and further improving the stirring effect. A push handle 14 is fixedly connected to the rear side of the outer wall of the base plate 1. The push handle 14, which is fixedly connected to the rear side of the outer wall of the base plate 1, facilitates the movement of the equipment by the staff. A protective sleeve 13 is fixedly connected to the outer wall of the push handle 14. Multiple support short plates 10 are fixedly connected at equal intervals to the bottom of the base plate 1. A caster wheel 9 is installed in the middle of the outer wall of the support short plate 10. The caster wheel 9 facilitates the movement of the equipment to different locations by the staff.

[0029] Reference Figure 1 , Figure 2 and Figure 3The storage box 16 has a screw 12 threadedly connected to the right side of its outer wall, and a hook 11 threadedly connected to the outer wall of the screw 12. The hook 11 on the right side of the outer wall of the storage box 16 makes it easy to hang tools for daily use and cleaning. A hollow box 25 is fixedly connected to the top rear side of the base plate 1. A drawer 27 is slidably connected inside the hollow box 25. The drawer 27 slidably connected inside the hollow box 25 makes it easy to store tools for daily use and maintenance. The storage box 16 has a screw 20 threadedly connected to the left side of its outer wall, and a warning sign 21 is threadedly connected to the outer wall of the screw 20. The warning sign 21 can remind the staff of the precautions when operating the equipment, thereby reducing the probability of danger. A handle 26 is fixedly connected to the rear side of the outer wall of the drawer 27. An anti-slip sleeve 28 is fixedly connected to the outer wall of the handle 26. The handle 26 makes it easy for the staff to open and close the drawer 27 for use. Specifically, a screw 12 is threadedly connected to the right side of the outer wall of the storage box 16, and a hook 11 is threadedly connected to the outer wall of the screw 12. The hook 11 on the right side of the outer wall of the storage box 16 facilitates the hanging of tools for daily use and cleaning. A hollow box 25 is fixedly connected to the top rear side of the base plate 1, and a drawer 27 is slidably connected inside the hollow box 25. The drawer 27 slidably connected inside the hollow box 25 facilitates the storage of tools for daily use and maintenance. A screw 20 is threadedly connected to the left side of the outer wall of the storage box 16, and a warning sign 21 is threadedly connected to the outer wall of the screw 20. The warning sign 21 serves to remind staff of precautions when operating the equipment, thereby reducing the probability of danger. A handle 26 is fixedly connected to the rear side of the outer wall of the drawer 27, and an anti-slip sleeve 28 is fixedly connected to the outer wall of the handle 26. The handle 26 facilitates the opening and closing of the drawer 27 for use.

[0030] Working principle: By turning on the air pump 6, the air pump 6 transmits gas to the high-pressure nozzle 8 through the hose 18. Then, the motor 2 3 drives the gear 3 7 at the output end to rotate. Since the gear 3 7 meshes with the rack 19, the rotation of the gear 3 7 will cause the rack 19 to slide up and down on the front side of the inner wall of the support plate 23, thereby causing the high-pressure nozzle 8 fixed at the bottom of the rack 19 to move synchronously. The gas sprayed by the high-pressure nozzle 8 blows out the concrete cracks, blowing out the impurities of the long-term accumulated adhesive dirt in the cracks, thus achieving the purpose of cleaning the cracks. After the cracks are cleaned, the storage box 16 stores asphalt for repairing the cracks. The asphalt in the storage box 16 is output to the extrusion nozzle 22 through the connecting pipe 24. Then, the extrusion nozzle 22 extrudes the asphalt and fills it into the cleaned cracks to achieve repair. This avoids the problem of water accumulation in the cracks caused by the high-pressure water flow washing the cracks in the existing technology, which affects the adhesion of the subsequent repair materials. By turning on the motor 201, the output gear 206 is driven to rotate. Since the left end of the outer wall of the gear 206 is fixedly connected to the threaded stirring rod 205, the rotation of the gear 206 will drive the threaded stirring rod 205 to rotate inside the storage tank 16. During the rotation, the threaded stirring rod 205 can stir and push the asphalt inside the storage tank 16, achieving a preliminary stirring effect. The upper right side of the outer wall of the storage tank 16 is rotatably connected to the gear 203. The outer wall of the gear 203 is equipped with a chain 202, which is connected to the gear 206. Therefore, when the gear 206 rotates under the drive of the motor 201, it will drive the gear 203 to rotate through the transmission action of the chain 202. This will cause the stirring rod 204 at the left end of the outer wall of the gear 203 to rotate inside the storage tank 16, further stirring the asphalt inside the storage tank 16, expanding the stirring range, and further improving the stirring effect. This will prevent the asphalt from settling and accumulating after long-term accumulation.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An asphalt pavement crack repair device, comprising a base plate (1), characterized in that: A storage box (16) is fixedly connected to the middle of the top wall of the base plate (1). A connecting pipe (24) is connected to the rear side of the outer wall of the storage box (16). An extrusion nozzle (22) is installed at the rear end of the outer wall of the connecting pipe (24). An air pump (6) is fixedly connected to the front side of the upper middle part of the outer wall of the storage box (16). A hose (18) is connected to the output end of the air pump (6). A support plate (23) is fixedly connected to the front side of the lower middle part of the outer wall of the storage box (16). A motor is fixedly connected to the top of the support plate (23). Second (3), the output end of the motor second (3) is fixedly connected to the gear third (7), the inner wall front side of the support plate (23) is slidably connected to the rack (19), the gear third (7) is meshed with the rack (19), the bottom of the rack (19) is fixedly connected to the high pressure nozzle (8), the bottom end of the hose (18) is connected to the high pressure nozzle (8), and the outer wall right side of the base plate (1) is equipped with a stirring mechanism (2), which is used to stir the asphalt inside the storage tank (16).

2. The asphalt pavement crack repair device according to claim 1, characterized in that: The stirring mechanism (2) includes a motor (201), which is installed on the right side of the outer wall of the base plate (1). The output end of the motor (201) is fixedly connected to a gear (206). A threaded stirring rod (205) is fixedly connected to the left end of the outer wall of the gear (206). A gear (203) is rotatably connected to the upper right side of the outer wall of the storage box (16). A chain (202) is installed on the outer wall of the gear (203). A stirring rod (204) is fixedly connected to the left end of the outer wall of the gear (203).

3. The asphalt pavement crack repair device according to claim 1, characterized in that: The top of the storage box (16) is fixedly connected to a hinge (15), and a sealing plate (17) is rotatably connected to the other side of the outer wall of the hinge (15).

4. The asphalt pavement crack repair device according to claim 3, characterized in that: The top of the sealing plate (17) is fixedly connected to a handle (4), and the outer wall of the handle (4) is fixedly connected to an anti-slip sleeve (5).

5. The asphalt pavement crack repair device according to claim 1, characterized in that: A push handle (14) is fixedly connected to the rear side of the outer wall of the base plate (1), and a protective sleeve (13) is fixedly connected to the outer wall of the push handle (14).

6. The asphalt pavement crack repair device according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected with multiple support short plates (10) at equal intervals, and the outer wall of the support short plates (10) is equipped with casters (9).

7. The asphalt pavement crack repair device according to claim 1, characterized in that: The storage box (16) has a screw (12) threaded on the right side of its outer wall, and a hook (11) is threaded on the outer wall of the screw (12).

8. The asphalt pavement crack repair device according to claim 1, characterized in that: A hollow box (25) is fixedly connected to the top rear side of the base plate (1), and a drawer (27) is slidably connected inside the hollow box (25).

9. The asphalt pavement crack repair device according to claim 1, characterized in that: The storage box (16) has a screw two (20) threaded on the left side of its outer wall, and a warning sign (21) is threaded on the outer wall of the screw two (20).

10. An asphalt pavement crack repair device according to claim 8, characterized in that: A handle two (26) is fixedly connected to the rear side of the outer wall of the drawer (27), and an anti-slip sleeve two (28) is fixedly connected to the outer wall of the handle two (26).

Citation Information

Patent Citations

  • Asphalt pavement crack repairing device

    CN220246627U