A crack sealing machine for road repair

Abstract

This application provides a crack-sealing machine for road surface repair. The crack-sealing machine includes: a fixed base, a rotating shaft rotatably connected to the bottom surface of the fixed base, and traveling wheels fixedly connected to both ends of the rotating shaft; a glue storage cylinder fixedly connected to the upper surface of the fixed base; and a glue pump fixedly installed on the upper surface of the fixed base. Through the combined use of the spraying structure and the glue dispensing structure, the machine can spray and clean the cracks in the road surface during the crack-sealing process, thereby reducing debris in the cracks. It can also heat and preheat the cracks in the road surface, thus improving the performance of the crack-sealing glue and making it suitable for use in cold winter weather. At the same time, the glue dispensing structure can automatically filter the flowing crack-sealing glue during crack-sealing construction. Filtering can reduce air bubbles in the crack-sealing glue and effectively prevent the glue from solidifying and clogging at the head of the glue dispensing structure, thereby avoiding clogging.

Description

Technical Field

[0001] This application relates to a crack sealing machine for road surface repair. Background Technology

[0002] Road surface repair refers to the cleaning, filling, and compaction of damaged road surfaces to restore their functionality and appearance. Cracks in the road surface are usually repaired by crack filling. Crack filling is mainly a preventive maintenance method for road surface defects, treating road surface cracks to prevent them from expanding further and causing road surface damage. Crack filling repair requires the use of appropriate crack filling machines.

[0003] The existing patent document "CN107881898B A Road Crack Filling Machine" discloses a road crack filling machine. Although this road crack filling machine can fill and repair cracks in the road surface, in winter, the road surface temperature is low, and the temperature in the road crack is also low, which affects the adhesion and bonding effect of the adhesive. In addition, the above-mentioned technical solution uses a scraper to scrape off the excess adhesive, and the excess adhesive is difficult to recycle after scraping, resulting in the waste of excess adhesive. Furthermore, during the filling process, the adhesive nozzle is prone to accumulate solidified adhesive, which can cause blockage and affect the filling effect.

[0004] In other words, existing technologies have the following technical problems: ordinary road crack sealing machines suffer from poor adhesive adhesion and bonding when the temperature at the road surface cracks is low; excess adhesive is difficult to recover after being scraped down with a scraper, leading to adhesive waste; and the adhesive nozzle is prone to accumulating and solidifying, causing blockages. Therefore, a road crack sealing machine for road repair is proposed to address the above problems.

[0005] Application content

[0006] This application addresses the problems of excessive glue being difficult to recover after scraping with a scraper in ordinary road crack sealing machines, leading to glue waste and easy accumulation of solidified glue at the nozzle, causing blockage. It provides a crack sealing machine for road repair.

[0007] This application solves the above-mentioned technical problems through the following technical solutions:

[0008] This application provides a crack sealing machine for road surface repair, the crack sealing machine for road surface repair comprising:

[0009] A smoothing structure is fixedly installed on the bottom surface of a fixed base. The smoothing structure is connected to a linkage structure. During the movement of the fixed base, the linkage structure drives the smoothing structure to smooth the adhesive and collect any excess adhesive after smoothing.

[0010] The dispensing structure is fixedly installed at the front end of the fixed base. The dispensing structure dispenses potting compound and prevents clogging during the movement of the fixed base.

[0011] Furthermore, the blowing structure includes a hot air blower, a fixed plate frame, a jet nozzle, and an output pipe. The hot air blower is fixedly installed on the upper surface of the fixed base. The fixed plate frame is fixedly connected to the front end of the fixed base. The jet nozzle is fixedly installed on the fixed plate frame. One end of the output pipe is fixedly connected to the output end of the output pipe, and the other end of the output pipe is fixedly connected to the jet nozzle.

[0012] Furthermore, the smoothing structure includes a fixed bracket, a pressure roller, a collection cylinder, a recycling bottle, and a push plate. The fixed bracket is fixedly installed at the bottom surface of the fixed base, and the pressure roller is rotatably connected to the bottom end of the fixed bracket, with the pressure roller in contact with the ground.

[0013] Furthermore, a connecting bracket is fixedly connected to the upper surface of the collecting cylinder, and the connecting bracket is fixedly connected to the bottom surface of the fixed base. A scraping opening is provided on the side of the collecting cylinder, and the edge of the scraping opening contacts the arc-shaped surface of the pressure roller.

[0014] Furthermore, a fixed cylinder is fixedly connected to the arc-shaped surface of the collecting cylinder, and a piston A is slidably connected to the inner cavity of the fixed cylinder. One end of a connecting rod is fixedly connected to one side of the piston A, and the other end of the connecting rod penetrates the inner wall of the fixed cylinder and extends to the outside of the wall. A connecting plate is fixedly connected to one end of the connecting rod, and one end of a push rod is fixedly connected to one side of the connecting plate. The other end of the push rod penetrates the side wall of the collecting cylinder and extends into the inner cavity of the collecting cylinder. A push plate is slidably connected to the inner cavity of the collecting cylinder, and one end of the push rod is fixedly connected to the push plate. Recycling pipes are fixedly connected to both ends of the inner cavity of the collecting cylinder, and the recycling pipes are connected to the recycling bottles by threads.

[0015] Furthermore, the recycling pipe includes an inner tube, an outer tube, and a heating resistance wire. The inner tube is fixedly installed in the inner cavity of the outer tube, and the heating resistance wire is fixedly installed between the inner tube and the outer tube. The recycling bottle includes a bottle body and a heating resistor, and the heating resistor is fixedly installed inside the bottle body.

[0016] Furthermore, the linkage structure includes an L-shaped connecting bracket, a connecting cylinder, a piston B, a rectangular connecting plate A, and a rectangular connecting plate B. The L-shaped connecting bracket is fixedly mounted on the upper surface of the fixed base. A rotating shaft is rotatably connected to the bottom surface of the fixed base. Traveling wheels are fixedly connected to both ends of the rotating shaft. A connecting cylinder is fixedly connected to the top of the L-shaped connecting bracket. One end of a connecting hose is fixedly connected to the upper end of the inner cavity of the connecting cylinder. The other end of the connecting hose extends into the inner cavity of the fixed cylinder and is fixedly connected to the fixed cylinder.

[0017] Furthermore, a piston B is slidably connected in the inner cavity of the connecting cylinder, and one end of a rectangular connecting plate A is fixedly connected to the bottom surface of the piston B. The other end of the rectangular connecting plate A penetrates the bottom wall of the inner cavity of the connecting cylinder and extends to the outside of the wall. One end of a rectangular connecting plate B is rotatably connected to the bottom end of the rectangular connecting plate A, and the other end of the rectangular connecting plate B is rotatably connected to the side wall of the traveling wheel.

[0018] Furthermore, the glue dispensing structure includes a glue dispensing nozzle, a rotating connecting rod, a bevel gear B, a bevel gear A, a filter plate, and an iron wire. A glue storage cylinder is fixedly connected to the upper surface of the fixed base, and a glue pump is fixedly installed on the upper surface of the fixed base. The input end of the glue pump is connected to the inner cavity of the glue storage cylinder, and the output end of the glue pump is fixedly connected to a connecting pipe. The connecting pipe is connected to the glue dispensing nozzle. A support frame is fixedly installed in the inner cavity of the glue dispensing nozzle, and a rotating rod is rotatably connected to the support frame. A bevel gear D is fixedly connected to the upper end of the rotating rod, and a rotating connecting rod is rotatably connected to the side wall of the glue dispensing nozzle. A bevel gear C is fixedly connected to one end of the rotating connecting rod, and the bevel gear C meshes with the bevel gear D. A bevel gear B is fixedly connected to the other end of the rotating connecting rod, and the bevel gear A is fixedly installed on the arc-shaped wall of the rotating shaft, and the bevel gear A meshes with the bevel gear B.

[0019] Furthermore, a filter plate is fixedly connected to the bottom end of the rotating rod. The filter plate is provided with several filter holes. Iron wires are fixedly connected to both sides of the bottom surface of the filter plate. Both iron wires extend to the outlet of the dispensing nozzle, and the ends of the iron wires are wavy.

[0020] The positive and progressive effects of this application are as follows:

[0021] The aforementioned crack-sealing machine for road repair, through the combined use of a spraying structure and an adhesive dispensing structure, can effectively clean the cracks in the road surface during the crack-sealing process, thereby reducing debris in the cracks. It can also preheat the cracks, resulting in better adhesive performance and making it suitable for use in cold winter weather. Simultaneously, the adhesive dispensing structure automatically filters the flowing adhesive during crack-sealing, reducing air bubbles and preventing the adhesive from drying and clogging at the head of the dispensing structure. This application also features a smoothing structure that flattens the adhesive surface after crack sealing. Compared to the scraping structure in existing technologies, this structure can automatically collect and recycle the collected adhesive, reducing waste and achieving better recycling results, thus saving on the amount of adhesive used. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the entire application.

[0023] Figure 2 This is a schematic diagram of the overall structure of the spraying structure in this application.

[0024] Figure 3 This is a schematic diagram of the overall structure of the flattened structure in this application.

[0025] Figure 4 This is a schematic diagram of the internal structure of the collection tube in this application.

[0026] Figure 5 This is a schematic diagram of the cross-sectional structure of the recycling pipeline in this application.

[0027] Figure 6 This is a schematic diagram of the cross-sectional structure of the recycled bottle in this application.

[0028] Figure 7 This is a schematic diagram of the internal structure of the fixed cylinder in this application.

[0029] Figure 8 This is a schematic diagram of the overall structure of the linkage structure in this application.

[0030] Figure 9 This is a schematic diagram of the connection structure of the adhesive dispensing structure in this application.

[0031] Figure 10 For this application Figure 9 A magnified schematic diagram of the structure at point A.

[0032] Explanation of reference numerals in the attached figures

[0033] 1. Fixed base; 2. Rotating shaft; 3. Traveling wheels; 4. Glue storage tank; 5. Glue pump; 6. Glue dispensing structure; 7. Connecting pipe; 8. Spraying structure; 9. Smoothing structure; 10. Linkage structure; 11. Hot air blower; 12. Fixed plate frame; 13. Air nozzle; 14. Output pipe; 15. Fixed bracket; 16. Pressure roller; 17. Connecting bracket; 18. Collection cylinder; 19. Scraping opening; 20. Recycling pipe; 2001. Inner tube; 2002. Outer tube; 2003. Heating resistance wire; 21. Recycling bottle; 210 1. Bottle body; 2102. Heating resistor; 22. Push plate; 23. Push rod; 24. Fixed cylinder; 25. Piston A; 26. Connecting rod; 27. Connecting plate; 28. Connecting hose; 29. ​​Connecting cylinder; 30. L-shaped connecting bracket; 31. Piston B; 32. Rectangular connecting plate A; 33. Rectangular connecting plate B; 34. Bevel gear A; 35. Dispensing nozzle; 36. Rotating connecting rod; 37. Bevel gear B; 38. Bevel gear C; 39. Support frame; 40. Rotating rod; 41. Bevel gear D; 42. Filter plate; 43. Iron wire. Detailed Implementation

[0034] The present application is further illustrated below by way of embodiments, but this does not limit the present application to the scope of the embodiments described.

[0035] like Figure 1 As shown, the crack sealing machine for road surface repair includes:

[0036] A fixed base 1 is provided, with a rotating shaft 2 rotatably connected to the bottom surface of the fixed base 1. Two wheels 3 are fixedly connected to both ends of the rotating shaft 2. A glue storage cylinder 4 is fixedly connected to the upper surface of the fixed base 1. A glue pump 5 is fixedly installed on the upper surface of the fixed base 1. The input end of the glue pump 5 is connected to the inner cavity of the glue storage cylinder 4. A connecting pipe 7 is fixedly connected to the output end of the glue pump 5.

[0037] The dispensing structure 6 is fixedly installed at the front end of the fixed base 1. The dispensing structure 6 is connected to the connecting pipe 7. The dispensing structure 6 outputs the potting compound and plays a role in preventing blockage.

[0038] The spray structure 8 is fixedly installed on the upper surface of the fixed base 1, and the spray structure 8 sprays and cleans the road surface gaps.

[0039] Smoothing structure 9 is fixedly installed on the bottom surface of fixed base 1. The smoothing structure 9 is used to flatten and recycle excess glue.

[0040] Linkage structure 10 is fixedly installed on the upper surface of fixed base 1. Linkage structure 10 is connected to smoothing structure 9. Linkage structure 10 is used to drive smoothing structure 9 to recycle grout.

[0041] For further technical solutions, please refer to Figure 2 As shown, the spraying structure 8 includes a hot air blower 11, a fixed frame 12, a jet nozzle 13, and an output pipe 14. The hot air blower 11 is fixedly installed on the upper surface of the fixed base 1. The fixed frame 12 is fixedly connected to the front end of the fixed base 1. The jet nozzle 13 is fixedly installed on the fixed frame 12. One end of the output pipe 14 is fixedly connected to the output end of the output pipe 14, and the other end of the output pipe 14 is fixedly connected to the jet nozzle 13. The hot air can be delivered to the jet nozzle 13 by the operation of the hot air blower 11. The hot air is sprayed out by the jet nozzle 13, thereby cleaning the cracks in the road surface. It can remove impurities and dust in the cracks by spraying. The hot air can also heat the cracks, avoiding the problem of reduced glue performance due to low crack temperature. It is especially suitable for use in winter when the temperature is low.

[0042] For specific technical solutions, please refer to Figure 3 and Figure 4 As shown, the smoothing structure 9 includes a fixed bracket 15, a pressure roller 16, a collection cylinder 18, a recycling bottle 21, and a push plate 22. The fixed bracket 15 is fixedly installed on the bottom surface of the fixed base 1. The pressure roller 16 is rotatably connected to the bottom end of the fixed bracket 15. The pressure roller 16 is in contact with the ground. During the grouting process, the smoothing structure 9 is moved by the movement of this device, so that the pressure roller 16 can roll on the ground. The rolling of the pressure roller 16 on the ground can flatten the excess glue after grouting, thereby avoiding the problem of glue bulging during grouting and making the ground gaps smoother after grouting.

[0043] A connecting bracket 17 is fixedly connected to the upper surface of the collection cylinder 18. The connecting bracket 17 is fixedly connected to the bottom surface of the fixed base 1. A scraping opening 19 is provided on the side of the collection cylinder 18. The edge of the scraping opening 19 contacts the arc-shaped surface of the pressure roller 16. During the rolling process of the pressure roller 16, the excess glue is flattened and the excess glue adheres to the outer surface of the pressure roller 16. During the continuous rolling process of the pressure roller 16, the glue on the surface of the pressure roller 16 can be scraped through the scraping opening 19, so that the glue enters the inner cavity of the collection cylinder 18 through scraping, thus playing the role of scraping and recycling excess glue.

[0044] For a preferred technical solution, please refer to Figure 7 As shown, a fixed cylinder 24 is fixedly connected to the arc-shaped surface of the collecting cylinder 18. A piston A25 is slidably connected to the inner cavity of the fixed cylinder 24. One end of a connecting rod 26 is fixedly connected to one side of the piston A25. The other end of the connecting rod 26 penetrates the inner wall of the fixed cylinder 24 and extends to the outside of the wall. A connecting plate 27 is fixedly connected to one end of the connecting rod 26. One end of a push rod 23 is fixedly connected to one side of the connecting plate 27. The other end of the push rod 23 penetrates the side wall of the collecting cylinder 18 and extends into the inner cavity of the collecting cylinder 18. A push plate 22 is slidably connected to the inner cavity of the collecting cylinder 18. One end of the push rod 23 is fixedly connected to the push plate 22. A recycling pipe 20 is fixedly connected to both ends of the inner cavity of the collecting cylinder 18. The recycling pipe 20 is connected to the recycling bottle 21 by a thread. When the piston A25 moves, it can drive the connecting rod 26 to move. The movement of the connecting rod 26 drives the connecting plate 27 to move, which in turn drives the push rod 23 to move. The movement of the push rod 23 drives the push plate 22 to move. The movement of the push plate 22 pushes the glue collected in the inner cavity of the collecting cylinder 18 to move. The push of the push plate 22 pushes the glue into the recycling pipe 20, and then flows into the inner cavity of the recycling bottle 21 through the recycling pipe 20, thus playing the role of recycling and collecting the glue.

[0045] For further technical solutions, please refer to Figure 5 and Figure 6 As shown, the recycling pipe 20 includes an inner tube 2001, an outer tube 2002, and a heating resistance wire 2003. The inner tube 2001 is fixedly disposed within the inner cavity of the outer tube 2002. The heating resistance wire 2003 is fixedly installed between the inner tube 2001 and the outer tube 2002. The recycling bottle 21 includes a bottle body 2101 and a heating resistor 2102. The heating resistor 2102 is fixedly installed inside the bottle body 2101. The heating effect of the heating resistance wire 2003 can heat the recycling pipe 20, thereby heating and insulating the glue flowing inside the recycling pipe 20. The heating effect of the heating resistor 2102 can keep the recycling bottle... 21 serves a heating function, thereby heating and keeping the glue collected inside the recycling bottle 21 warm, thus preventing the glue from solidifying due to temperature drop and facilitating subsequent recycling. When recycling is required, the recycling bottle 21 can be manually rotated to unscrew it from one end of the fixing cylinder 24, allowing the glue inside the recycling bottle 21 to be recycled. After cleaning and recycling, the recycling bottle 21 is tightened back onto one end of the fixing cylinder 24 to complete the recycling process. Through the above technical solution, excess glue in the grouting process can be flattened while also being recycled, resulting in reduced glue consumption and cost savings.

[0046] For a preferred technical solution, please refer to Figure 7 As shown, the linkage structure 10 includes an L-shaped connecting bracket 30, a connecting cylinder 29, a piston B31, a rectangular connecting plate A32, and a rectangular connecting plate B33. The L-shaped connecting bracket 30 is fixedly installed on the upper surface of the fixed base 1. The connecting cylinder 29 is fixedly connected to the top of the L-shaped connecting bracket 30. One end of the connecting hose 28 is fixedly connected to the upper end of the inner cavity of the connecting cylinder 29. The other end of the connecting hose 28 extends into the inner cavity of the fixed cylinder 24 and is fixedly connected to the fixed cylinder 24.

[0047] A piston B31 is slidably connected to the inner cavity of the connecting cylinder 29. One end of a rectangular connecting plate A32 is fixedly connected to the bottom surface of the piston B31. The other end of the rectangular connecting plate A32 penetrates the bottom wall of the inner cavity of the connecting cylinder 29 and extends outwards. One end of a rectangular connecting plate B33 is rotatably connected to the bottom end of the rectangular connecting plate A32. The other end of the rectangular connecting plate B33 is rotatably connected to the side wall of the traveling wheel 3. When the device is used for grouting, the movement of the traveling wheel 3 drives one end of the rectangular connecting plate B33 to move in a circular motion. This circular motion of the rectangular connecting plate B33 drives the rectangular connecting plate A32 to move up and down reciprocally, which in turn drives the piston B31 to move up and down reciprocally. When the piston B31 moves upwards... The gas in the inner cavity of the connecting cylinder 29 can be pushed into the inner cavity of the fixed cylinder 24, thereby increasing the gas in the inner cavity of the fixed cylinder 24. This causes the piston A25 to move and push the connecting rod 26 to extend outward. When the piston B31 moves downward, it will draw in the gas in the inner cavity of the fixed cylinder 24. As the gas in the inner cavity of the fixed cylinder 24 decreases, the piston A25 moves and drives the connecting rod 26 to retract inward. Through the above technical solution, the device can automatically drive the connecting rod 26 to reciprocate left and right during the moving and filling process, thereby driving the push rod 23 to reciprocate and causing the push plate 22 to move, scraping and collecting the glue for recycling. This realizes the automatic recycling function and effectively reduces the waste of the filling glue.

[0048] For specific technical solutions, please refer to Figure 9 and Figure 10As shown, the glue dispensing structure 6 includes a glue dispensing nozzle 35, a rotating connecting rod 36, a bevel gear B37, a bevel gear A34, a filter plate 42, and an iron wire 43. A support frame 39 is fixedly installed in the inner cavity of the glue dispensing nozzle 35. A rotating rod 40 is rotatably connected to the support frame 39. A bevel gear D41 is fixedly connected to the upper end of the rotating rod 40. A rotating connecting rod 36 is rotatably connected to the side wall of the glue dispensing nozzle 35. A bevel gear C38 is fixedly connected to one end of the rotating connecting rod 36. The bevel gear C38 and the bevel gear D41 mesh with each other. A bevel gear B37 is fixedly connected to the other end of the rotating connecting rod 36. The bevel gear A34 is fixedly installed on the arc-shaped wall of the rotating shaft 2. The bevel gear A34 and the bevel gear B37 mesh with each other.

[0049] A filter plate 42 is fixedly connected to the bottom end of the rotating rod 40. The filter plate 42 has several filter holes. Iron wires 43 are fixedly connected to both sides of the bottom surface of the filter plate 42. Both iron wires 43 extend to the outlet of the glue nozzle 35. The ends of the iron wires 43 are wavy. The glue is delivered to the glue nozzle 35 by the glue pump 5. The glue is output through the bottom end of the glue nozzle 35. At the same time, the glue is filtered by the filter plate 42. When filtering the glue, the gas in the glue can be removed by the filter, thereby reducing the effect of air bubbles in the glue and making the glue filling effect better. While the device moves to fill the gap, the rotation of the traveling wheel 3 can drive the rotating shaft 2 to rotate. The rotation of the rotating shaft 2 drives the bevel gear A34 to rotate. The rotation of the bevel gear A34 drives the bevel gear B37 to rotate. The rotation of the bevel gear B37 drives the rotating connecting rod 36 to rotate, which in turn drives the bevel gear C38 to rotate.

Claims

1. A crack sealing machine for road surface repair, characterized in that, A smoothing structure (9) is fixedly installed on the bottom surface of a fixed base (1). The smoothing structure (9) is connected to a linkage structure (10). The linkage structure drives the smoothing structure to smooth the glue and recovers the excess glue after smoothing during the movement of the fixed base. The dispensing structure (6) is fixedly installed at the front end of the fixed base (1). The dispensing structure (6) outputs the potting compound and plays an anti-clogging role during the movement of the fixed base. The smoothing structure (9) includes a fixed bracket (15), a pressure roller (16), a collection cylinder (18), a recycling bottle (21), and a push plate (22). The fixed bracket (15) is fixedly installed at the bottom surface of the fixed base (1). The pressure roller (16) is rotatably connected to the bottom end of the fixed bracket (15). The pressure roller (16) is in contact with the ground. A connecting bracket (17) is fixedly connected to the upper surface of the collecting cylinder (18). The connecting bracket (17) is fixedly connected to the bottom surface of the fixed base (1). A scraping opening (19) is provided on the side of the collecting cylinder (18). The edge of the scraping opening (19) contacts the arc surface of the pressure roller (16). A fixed cylinder (24) is fixedly connected to the arc-shaped surface of the collection cylinder (18). A piston A (25) is slidably connected in the inner cavity of the fixed cylinder (24). One end of a connecting rod (26) is fixedly connected to one side of the piston A (25). The other end of the connecting rod (26) passes through the inner wall of the fixed cylinder (24) and extends to the outside of the wall. A connecting plate (27) is fixedly connected to one end of the connecting rod (26). One end of a push rod (23) is fixedly connected to one side of the connecting plate (27). The other end of the push rod (23) passes through the side wall of the collection cylinder (18) and extends into the inner cavity of the collection cylinder (18). A push plate (22) is slidably connected in the inner cavity of the collection cylinder (18). One end of the push rod (23) is fixedly connected to the push plate (22). A recycling pipe (20) is fixedly connected to both ends of the inner cavity of the collection cylinder (18). The recycling pipe (20) is connected to the recycling bottle (21) by a thread. The recycling pipe (20) includes an inner pipe (2001), an outer pipe (2002), and a heating resistance wire (2003). The inner pipe (2001) is fixedly installed in the inner cavity of the outer pipe (2002), and the heating resistance wire (2003) is fixedly installed between the inner pipe (2001) and the outer pipe (2002). The recycling bottle (21) includes a bottle body (2101) and a heating resistor (2102). The heating resistor (2102) is fixedly installed inside the bottle body (2101). The linkage structure (10) includes an L-shaped connecting bracket (30), a connecting cylinder (29), a piston B (31), a rectangular connecting plate A (32), and a rectangular connecting plate B (33). The L-shaped connecting bracket (30) is fixedly installed on the upper surface of the fixed base (1). A rotating shaft (2) is rotatably connected to the bottom surface of the fixed base (1). A traveling wheel (3) is fixedly connected to both ends of the rotating shaft (2). A connecting cylinder (29) is fixedly connected to the top of the L-shaped connecting bracket (30). One end of a connecting hose (28) is fixedly connected to the upper end of the inner cavity of the connecting cylinder (29). The other end of the connecting hose (28) extends into the inner cavity of the fixed cylinder (24) and is fixedly connected to the fixed cylinder (24).

2. The crack sealing machine for road surface repair as described in claim 1, characterized in that: A jetting structure (8) is installed at the fixed base (1). The jetting structure (8) includes a hot air blower (11), a fixed plate frame (12), a jet nozzle (13), and an output pipe (14). The hot air blower (11) is fixedly installed on the upper surface of the fixed base (1). The fixed plate frame (12) is fixedly connected to the front end of the fixed base (1). The jet nozzle (13) is fixedly installed on the fixed plate frame (12). One end of the output pipe (14) is fixedly connected to the output end of the output pipe (14). The other end of the output pipe (14) is fixedly connected to the jet nozzle (13).

3. The crack sealing machine for road surface repair as described in claim 1, characterized in that: A piston B (31) is slidably connected in the inner cavity of the connecting cylinder (29). One end of a rectangular connecting plate A (32) is fixedly connected to the bottom surface of the piston B (31). The other end of the rectangular connecting plate A (32) passes through the bottom wall of the inner cavity of the connecting cylinder (29) and extends to the outside of the wall. One end of a rectangular connecting plate B (33) is rotatably connected to the bottom end of the rectangular connecting plate A (32). The other end of the rectangular connecting plate B (33) is rotatably connected to the side wall of the traveling wheel (3).

4. The crack sealing machine for road surface repair as described in claim 1, characterized in that: The dispensing structure (6) includes a dispensing nozzle (35), a rotating connecting rod (36), a bevel gear B (37), a bevel gear A (34), a filter plate (42), and an iron wire (43). A glue storage cylinder (4) is fixedly connected to the upper surface of the fixed base (1). A glue pump (5) is fixedly installed on the upper surface of the fixed base (1). The input end of the glue pump (5) is connected to the inner cavity of the glue storage cylinder (4). A connecting pipe (7) is fixedly connected to the output end of the glue pump (5). The connecting pipe (7) is connected to the dispensing nozzle (35). A support frame (39) is fixedly installed in the inner cavity of the dispensing nozzle (35). A rotating rod (40) is rotatably connected to the frame (39). A bevel gear D (41) is fixedly connected to the upper end of the rotating rod (40). A rotating connecting rod (36) is rotatably connected to the side wall of the dispensing nozzle (35). A bevel gear C (38) is fixedly connected to one end of the rotating connecting rod (36). The bevel gear C (38) meshes with the bevel gear D (41). A bevel gear B (37) is fixedly connected to the other end of the rotating connecting rod (36). A bevel gear A (34) is fixedly installed on the arc-shaped wall of the rotating shaft (2). The bevel gear A (34) meshes with the bevel gear B (37).

5. A crack sealing machine for road surface repair as described in claim 4, characterized in that: A filter plate (42) is fixedly connected to the bottom end of the rotating rod (40). The filter plate (42) has several filter holes. Iron wires (43) are fixedly connected to both sides of the bottom surface of the filter plate (42). Both iron wires (43) extend to the outlet of the glue nozzle (35). The ends of the iron wires (43) are wavy.

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