Asphalt pavement filling and sealing machine

Abstract

This invention relates to the field of road maintenance, and more particularly to an asphalt pavement sealing machine. Existing asphalt pavement sealing machines struggle to adjust the amount of liquid road sealant discharged in a timely manner, resulting in insufficient filling of asphalt pavement cracks of varying widths. This necessitates scraping the remaining sealant within the cracks, leading to low road repair efficiency. The proposed asphalt pavement sealing machine includes a frame, a heating tank, a cover, and a discharge pipe. The heating tank is mounted on the frame, with a discharge port at its bottom and a cover at its top. The discharge pipe connects to the bottom of the heating tank. By cooperating with a vision inspection device and a controller, the machine can adjust the amount of liquid road sealant discharged according to the width of the asphalt pavement cracks. By adjusting the oscillation amplitude of the hose to match the amount of liquid road sealant, the machine ensures that the discharged sealant can adequately fill asphalt pavement cracks of different widths.

Description

Technical Field

[0001] This invention relates to the field of road maintenance, and more particularly to an asphalt pavement sealing machine. Background Technology

[0002] Asphalt pavement is a type of road surface formed by spreading and compacting asphalt concrete. After long-term service and the effects of vehicle loads, asphalt pavement is prone to cracking, thus requiring maintenance and repair. Asphalt pavement repair involves filling cracks with road sealant, and finally smoothing the sealant to complete the repair.

[0003] Because the width of road cracks varies, existing road sealing machines have difficulty adjusting the amount of liquid road sealant discharged in a timely manner. At the same time, the discharge port is generally not easy to adjust, making it difficult for the discharged liquid road sealant to fully fill asphalt road cracks of different widths. Subsequently, it is necessary to scrape the liquid road sealant in the cracks, resulting in low road repair efficiency. Summary of the Invention

[0004] To overcome the shortcomings of the aforementioned background technology, the present invention provides an asphalt pavement sealing machine that can adjust the amount of liquid road sealant discharged in a timely manner according to the different widths of pavement cracks. The discharged liquid road sealant can easily fill asphalt pavement cracks of different widths and can scrape the liquid road sealant in the cracks, thereby improving the efficiency of pavement repair.

[0005] The technical solution is as follows: An asphalt pavement sealing machine includes a frame, a heating tank, a cover, a discharge pipe, a hose, a heating element, and handles. The heating tank is mounted on the frame, with a drain outlet at the bottom and a cover at the top. The discharge pipe is connected to the bottom of the heating tank and is located directly below the drain outlet. A hose is connected to the bottom of the discharge pipe. A heating element is installed at the bottom of the heating tank. A pair of handles are mounted on the top of the frame, symmetrically arranged. The machine is characterized by further including a stirring mechanism, an adjusting mechanism, a discharge control mechanism, a vision inspection instrument, and a controller. The stirring mechanism at the bottom of the heating tank is used to stir the melted asphalt. The liquid road sealant is designed to be fully heated. The agitator is equipped with an adjustment mechanism to regulate power transmission. The heating tank has a discharge control mechanism, and a vision inspection device is located on the underside of the chassis. A controller is mounted on the chassis and connected to the vision inspection device via circuitry. The vision inspection device is used to detect the width of asphalt pavement cracks in real time. The controller receives the data from the vision inspection device and controls the operation of the discharge control mechanism. The discharge control mechanism controls the amount and range of liquid road sealant discharged, ensuring that the discharged liquid road sealant fully fills asphalt pavement cracks of varying widths.

[0006] Furthermore, the stirring mechanism includes a mounting plate, a servo motor, a drive gear, a stirring rod, a six-sided rod, a movable frame, and a transmission gear. The mounting plate is installed at the bottom of the heating tank, the servo motor is mounted on the mounting plate, and the drive gear is fixedly installed on the top of the output shaft of the servo motor. The stirring rod is rotatably connected to the bottom of the heating tank, and the six-sided rod is fixedly installed at the bottom of the stirring rod. The movable frame is slidably connected to the mounting plate and contacts the mounting plate. The transmission gear is rotatably connected inside the movable frame and meshes with the drive gear.

[0007] Furthermore, the adjustment mechanism includes an electromagnet and an iron block. The electromagnet is fixedly installed at the bottom of the mounting plate, and the iron block is installed on the movable frame, with the iron block located directly below the electromagnet.

[0008] Furthermore, the discharge control mechanism includes a drive shaft, a driven gear, a drive disc, an electric push rod, a disc, a slotted swing rod, a drive plate, a connecting rod, and a movable baffle. The drive shaft is rotatably connected to the mounting plate, the driven gear is mounted on the top of the drive shaft, the drive disc is mounted on the bottom of the drive shaft, an electric push rod is fixedly mounted on the bottom of the heating tank, a disc is fixedly connected to the bottom of the telescopic shaft of the electric push rod, the telescopic shaft of the electric push rod is rotatably connected to the slotted swing rod, the slotted swing rod contacts the top of the disc, the disc is used to support the slotted swing rod, one side of the slotted swing rod is slidably connected to the drive disc, and the other side of the slotted swing rod is slidably connected to the hose, the drive plate is mounted on the telescopic shaft of the electric push rod, a pair of connecting rods are rotatably connected to the drive plate, and a movable baffle is slidably connected to the lower part of the heating tank, the movable baffle is rotatably connected to the other end of the two connecting rods.

[0009] Furthermore, it also includes a scraping mechanism. The scraping mechanism is mounted on the mounting plate and is used to scrape the liquid road sealant on the ground. The scraping mechanism includes a push bar, a movable rod, an adjusting plate, a return spring, a scraping plate, a support spring, and a pull rod frame. The push bar is mounted on one side of the movable frame. The movable rod is slidably connected to the mounting plate. One end of the movable rod is fixed to the adjusting plate. A return spring is connected between the adjusting plate and the mounting plate. The push bar is in contact with the adjusting plate. The scraping plate is slidably connected to the mounting plate. A support spring is connected between the scraping plate and the mounting plate. The pull rod frame is mounted on the upper part of the scraping plate and is slidably connected to the adjusting plate.

[0010] Furthermore, it also includes a heat insulation pad, with a heat insulation pad fitted onto the outside of the heating barrel.

[0011] Furthermore, it also includes a fan, which is installed on the lower part of the frame near the vision inspection device.

[0012] The present invention has the following advantages: when the worker starts the servo motor, the stirring rod rotates accordingly. The rotating stirring rod is used to stir the road sealant, so that the road sealant in all parts of the heating tank can be fully heated, which facilitates the speed at which the road sealant melts into liquid road sealant.

[0013] The information measured by the visual inspection instrument is transmitted to the controller in real time. The controller then adjusts the electric push rod accordingly. The wider the crack in the asphalt pavement, the greater the extension and retraction of the electric push rod's telescopic shaft controlled by the controller. This results in a longer upward movement of the drive plate and a longer distance the movable baffle moves away from the heating tank. Consequently, more liquid road sealant can be discharged from the drain port at the bottom of the heating tank. The longer the grooving swing rod moves upward, the greater the swing amplitude of the hose driven by the grooving swing rod. This allows the hose to disperse more liquid road sealant over a greater distance, facilitating the full filling of wider asphalt pavement cracks with the liquid road sealant.

[0014] By combining a vision inspection device with a controller, the amount of liquid road sealant discharged can be adjusted in a timely manner according to the width of asphalt pavement cracks, which helps to reduce waste and improve the efficiency of pavement repair. Furthermore, by adjusting the swing amplitude of the hose to match the amount of liquid road sealant, the discharged liquid road sealant can fully fill asphalt pavement cracks of different widths, thus having better applicability.

[0015] The push bar moves the adjusting plate closer to the scraper plate, which in turn moves the scraper plate downwards, bringing it into contact with the road surface. The scraper plate moves with the vehicle frame, scraping the liquid road sealant within the cracks in the asphalt pavement. This results in a more even distribution of the liquid road sealant, making it flush with the asphalt pavement, which helps maintain the pavement's aesthetics and eliminates the need for subsequent leveling work, further improving the efficiency of road repair. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0018] Figure 3 This is a partial cross-sectional perspective view of the three-dimensional structure of the present invention.

[0019] Figure 4 This is a schematic diagram of a second partial cross-sectional three-dimensional structure of the present invention.

[0020] Figure 5 This is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 6 This is a partial three-dimensional structural diagram of the material discharge control mechanism of the present invention.

[0022] Figure 7 This is a partial cross-sectional three-dimensional structural schematic diagram of the stirring mechanism of the present invention.

[0023] Figure 8 This is a partial three-dimensional structural diagram of the scraping mechanism of the present invention.

[0024] Parts and their numbers in the diagram: 1-Frame, 21-Heating barrel, 22-Cover, 23-Discharge pipe, 24-Hose, 25-Heating element, 3-Handle, 41-Mounting plate, 42-Servo motor, 43-Drive gear, 44-Agitator rod, 45-Six-sided rod, 46-Moving frame, 47-Transmission gear, 51-Electromagnet, 52-Iron block, 61-Drive shaft, 62-Driven gear, 63-Drive disc, 64-Electric push rod, 65-Circular piece, 66-Slotted swing rod, 67-Drive plate, 68-Connecting rod, 69-Moving baffle, 71-Vision inspector, 72-Controller, 81-Push bar, 82-Moving rod, 83-Adjusting plate, 84-Return spring, 85-Scraper plate, 86-Support spring, 87-Pull rod frame, 9-Heat insulation pad, 10-Fan. Detailed Implementation

[0025] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used herein refer only to the position of the illustrated structure in the corresponding drawings. The component numbers used herein, such as "first," "second," etc., are merely for distinguishing the described objects and have no sequential or technical meaning. Furthermore, terms such as "connection" and "linkage," unless otherwise specified, include both direct and indirect connections.

[0026] Example 1: An asphalt pavement sealing machine, such as Figures 1-7As shown, the device includes a frame 1, a heating tank 21, a cover 22, a discharge pipe 23, a hose 24, a heating element 25, handles 3, a stirring mechanism, an adjusting mechanism, a discharge control mechanism, a vision inspection instrument 71, and a controller 72. The frame 1 is equipped with the heating tank 21, which has a drain port at its bottom. The heating tank 21 is used to hold the heated liquid road sealant. The top of the heating tank 21 is covered with a cover 22 to prevent heat loss. The bottom of the heating tank 21 is connected to the discharge pipe 23, which is located directly below the drain port. The bottom of the discharge pipe 23 is connected to the hose 24. A heating element 25 is located at the bottom of the heating tank 21 to heat the road sealant into a liquid state. A pair of handles 3 are mounted on the top of the frame 1, symmetrically arranged. 3 is used to assist workers in pushing the frame 1. The bottom of the heating tank 21 is equipped with a stirring mechanism, which is used to stir the melted liquid road sealant so that the liquid road sealant can be fully heated. The stirring mechanism is equipped with an adjustment mechanism, which is used to adjust the power transmission. The heating tank 21 is equipped with a discharge control mechanism. The lower part of the frame 1 is equipped with a vision inspection instrument 71. The controller 72 is installed on the frame 1. The controller 72 is connected to the vision inspection instrument 71 through a circuit. The vision inspection instrument 71 is used to detect the width of asphalt pavement cracks in real time. The controller 72 is used to receive the data detected by the vision inspection instrument 71 in real time and control the operation of the discharge control mechanism. The discharge control mechanism is used to control the amount and range of liquid road sealant discharged, so that the discharged liquid road sealant can fully fill asphalt pavement cracks of different widths.

[0027] The agitation mechanism includes a mounting plate 41, a servo motor 42, a drive gear 43, an agitator 44, a hexagonal rod 45, a movable frame 46, and a transmission gear 47. The mounting plate 41 is mounted on the bottom of the heating tank 21. The servo motor 42 is bolted to the mounting plate 41. The drive gear 43 is fixedly mounted on the top of the output shaft of the servo motor 42 via a spline. The agitator 44 is rotatably connected to the bottom of the heating tank 21 via a bearing. The hexagonal rod 45 is fixedly mounted on the bottom of the agitator 44. The agitator 44 is used to agitate the road sealant, so that the road sealant in all parts of the heating tank 21 can be fully heated. The movable frame 46 is slidably connected to the mounting plate 41 and contacts the mounting plate 41. The transmission gear 47 is rotatably connected inside the movable frame 46 and meshes with the drive gear 43.

[0028] The adjustment mechanism includes an electromagnet 51 and an iron block 52. The electromagnet 51 is fixedly installed on the bottom of the mounting plate 41 by bolts. The iron block 52 is installed on the movable frame 46 by bolts. The iron block 52 is located directly below the electromagnet 51. The electromagnet 51 is used to attract the iron block 52, and the movable frame 46 and the transmission gear 47 move upward accordingly.

[0029] The material discharge control mechanism includes a drive shaft 61, a driven gear 62, a drive disc 63, an electric push rod 64, a disc 65, a slotted swing rod 66, a drive plate 67, a connecting rod 68, and a movable baffle 69. The drive shaft 61 is rotatably connected to the mounting plate 41 via bearings. The driven gear 62 is mounted on the top of the drive shaft 61, and the drive disc 63 is mounted on the bottom of the drive shaft 61. The electric push rod 64 is bolted to the bottom of the heating tank 21. A disc 65 is fixed to the bottom of the telescopic shaft of the electric push rod 64. The telescopic shaft of the electric push rod 64 is rotatably connected to the slotted swing rod 66, which contacts the top of the disc 65. 5 is used to support the grooving swing rod 66. One side of the grooving swing rod 66 is slidably connected to the drive plate 63, and the other side of the grooving swing rod 66 is slidably connected to the hose 24. The drive plate 67 is mounted on the telescopic shaft of the electric push rod 64. A pair of connecting rods 68 are rotatably connected to the drive plate 67. A movable baffle 69 is slidably connected to the lower part of the heating tank 21. The movable baffle 69 is rotatably connected to the other end of the two connecting rods 68. The movable baffle 69 is used to adjust the amount of liquid road sealant discharged from the heating tank 21. The electric push rod 64 is used to adjust the height of the grooving swing rod 66. The higher the grooving swing rod 66, the greater the swing amplitude of the hose 24.

[0030] When asphalt pavement needs repair, workers first place road sealant into the heating tank 21. The road sealant is mainly composed of asphalt and rubber. Then, the heating element 25 is powered on. The heat generated by the heating element 25 is used to heat and melt the road sealant into a liquid road sealant. The worker starts the servo motor 42. The output shaft of the servo motor 42 drives the drive gear 43 to rotate. The drive gear 43 drives the transmission gear 47, the six-sided rod 45, and the stirring rod 44 to rotate. The rotating stirring rod 44 is used to stir the road sealant, so that the road sealant in all parts of the heating tank 21 can be fully heated, which facilitates the speed at which the road sealant melts into a liquid road sealant. When the road sealant has been fully heated and melted into a liquid road sealant, the worker pushes the equipment to the area of ​​the asphalt pavement that needs to be repaired by using the handle 3.

[0031] When the worker starts the vision inspection device 71 and controller 72, and the transmission gear 47 rotates to a position suitable for meshing with the driven gear 62, the controller 72 energizes the electromagnet 51. The energized electromagnet 51 generates magnetic force, which quickly attracts the iron block 52 into contact with it. The movable frame 46 and transmission gear 47 then move upwards, meshing with the driven gear 62. The drive gear 43 drives the driven gear 62 to rotate via the transmission gear 47, causing the transmission shaft 61 and drive disc 63 to rotate accordingly. The vision inspection device 71 scans the width of cracks in the asphalt pavement, and the controller 72 controls the movement of the telescopic shaft of the electric push rod 64. The information measured by the vision inspection device 71 is transmitted to the controller 72 in real time. The device 72 adjusts the electric push rod 64 in real time. The telescopic shaft of the electric push rod 64 retracts, causing the disc 65, the slotted swing rod 66, and the drive plate 67 to move upward. The drive plate 67 pushes the movable baffle 69 away from the heating tank 21 through two connecting rods 68. The movable baffle 69 no longer completely blocks the drain port at the bottom of the heating tank 21. The liquid road sealant then flows into the discharge pipe 23 and the hose 24 in sequence. Finally, the hose 24 discharges the liquid road sealant into the cracks of the asphalt pavement. The drive disc 63 rotates, causing the slotted swing rod 66 to swing, which makes the hose 24 swing accordingly. The swinging hose 24 makes it easier to discharge the liquid road sealant more dispersed into the cracks of the asphalt pavement, which is beneficial for the liquid road sealant to fill the cracks of the asphalt pavement. The wider the crack in the asphalt pavement, the greater the extension and retraction of the telescopic shaft of the electric push rod 64 controlled by the controller 72, the longer the drive plate 67 moves upward, and the longer the movable baffle 69 moves away from the heating tank 21. This allows the drain port at the bottom of the heating tank 21 to discharge more liquid road sealant. The longer the grooving swing rod 66 moves upward, the greater the swing amplitude of the hose 24 driven by the grooving swing rod 66. This allows the hose 24 to disperse more liquid road sealant to a greater distance, making it easier for the liquid road sealant to fully fill the wider cracks in the asphalt pavement.

[0032] By cooperating with the visual inspection instrument 71 and the controller 72, the amount of liquid road sealant discharged can be adjusted in a timely manner according to the asphalt pavement cracks of different widths, which helps to reduce waste and improve the efficiency of pavement repair. Furthermore, by adjusting the swing amplitude of the hose 24 to match the amount of liquid road sealant, the discharged liquid road sealant can fully fill asphalt pavement cracks of different widths, thus having better applicability.

[0033] After the asphalt pavement repair is completed, the worker turns off the servo motor 42, the vision inspection instrument 71 and the controller 72. The stirring rod 44 stops rotating. The controller 72 controls the extension shaft of the electric push rod 64 to extend until it is reset. The transmission gear 47 disengages from the driven gear 62. The movable baffle 69 moves in the opposite direction to reset. The heating tank 21 no longer discharges liquid road sealant.

[0034] Example 2: Based on Example 1, such as Figure 5 and Figure 8 As shown, it also includes a scraping mechanism. The scraping mechanism is mounted on the mounting plate 41 and is used to scrape the liquid road sealant on the ground. The scraping mechanism includes a push bar 81, a movable rod 82, an adjusting plate 83, a return spring 84, a scraping plate 85, a support spring 86, and a pull rod frame 87. The push bar 81 is welded to one side of the movable frame 46. The movable rod 82 is slidably connected to the mounting plate 41. An adjusting plate 83 is welded to the end of the movable rod 82 near the iron block 52. A return spring 84 connects the adjusting plate 83 and the mounting plate 41. The strip 81 contacts the adjusting plate 83, and the pushing strip 81 is used to push the adjusting plate 83 to move closer to the scraper plate 85. The scraper plate 85 is slidably connected to the mounting plate 41. A support spring 86 is connected between the scraper plate 85 and the mounting plate 41. The pull rod 87 is installed on the upper part of the scraper plate 85 and is slidably connected to the adjusting plate 83. The scraper plate 85 scrapes the liquid road sealant in the cracks of the asphalt pavement, making the liquid road sealant more evenly distributed and making the liquid road sealant flush with the height of the asphalt pavement.

[0035] The movable frame 46 moves upward, causing the pusher bar 81 to move upward. The pusher bar 81 pushes the adjusting plate 83 towards the scraper plate 85, compressing the return spring 84. The movement of the adjusting plate 83 pushes the pull rod 87 and the scraper plate 85 downward, compressing the support spring 86. The scraper plate 85 then comes into contact with the road surface. The worker pushes the frame 1 to repair the asphalt pavement. The scraper plate 85 moves along with the frame, scraping the liquid road sealant in the cracks of the asphalt pavement. This makes the liquid road sealant more evenly distributed and level with the asphalt pavement, which helps maintain the aesthetics of the road surface. Subsequent leveling work is no longer needed, further improving the efficiency of road repair. After the movable frame 46 and the pusher bar 81 move downward and reset, the return spring 84 pushes the adjusting plate 83 to move in the opposite direction and reset. The support spring 86 pushes the scraper plate 85 upward and reset, and the scraper plate 85 no longer comes into contact with the road surface.

[0036] Example 3: Based on Example 2, such as Figure 1 As shown, it also includes a heat insulation pad 9. The heat insulation pad 9 is fitted on the outside of the heating barrel 21. The heat insulation pad 9 is used to reduce the heat radiated outward from the heating barrel 21.

[0037] It also includes a fan 10, which is bolted to the side of the lower part of the frame 1 near the vision inspection instrument 71.

[0038] When the heating element 25 is used to heat the road sealant, the heat insulation pad 9 is used to reduce the heat radiated outward from the heating barrel 21, which facilitates a rapid rise in the internal temperature of the heating barrel 21, making it easier to melt the road sealant into a liquid more quickly. The fan 10 is used to blow away the dust and impurities remaining in the cracks of the asphalt pavement, which facilitates better adhesion of the liquid road sealant to the cracks in the asphalt pavement.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An asphalt pavement sealing machine, comprising a frame (1), a heating barrel (21), a cover (22), a discharge pipe (23), a hose (24), a heating element (25), and handles (3), wherein the frame (1) is equipped with a heating barrel (21), the bottom of the heating barrel (21) has a drain port, the top of the heating barrel (21) has a cover (22), the bottom of the heating barrel (21) is connected to the discharge pipe (23), the discharge pipe (23) is located directly below the drain port of the heating barrel (21), the bottom of the discharge pipe (23) is connected to the hose (24), the bottom of the heating barrel (21) is provided with a heating element (25), and a pair of handles (3) are installed on the top of the frame (1), the two handles (3) being symmetrically arranged, characterized in that: It also includes a stirring mechanism, an adjusting mechanism, a discharge control mechanism, a vision inspection instrument (71), and a controller (72). The bottom of the heating tank (21) is equipped with a stirring mechanism, which is used to stir the melted liquid road sealant so that the liquid road sealant can be fully heated. The stirring mechanism is equipped with an adjusting mechanism, which is used to adjust the power transmission. The heating tank (21) is equipped with a discharge control mechanism. The lower part of the frame (1) is equipped with a vision inspection instrument (71). The controller (72) is installed on the frame (1). The controller (72) is connected to the vision inspection instrument (71) through a circuit. The vision inspection instrument (71) is used to detect the width of the asphalt pavement cracks in real time. The controller (72) is used to receive the data detected by the vision inspection instrument (71) in real time and control the operation of the discharge control mechanism. The discharge control mechanism is used to control the amount and range of the discharged liquid road sealant so that the discharged liquid road sealant can fully fill the asphalt pavement cracks of different widths.

2. The asphalt pavement sealing machine as described in claim 1, characterized in that: The stirring mechanism includes a mounting plate (41), a servo motor (42), a drive gear (43), a stirring rod (44), a six-sided rod (45), a movable frame (46), and a transmission gear (47). The mounting plate (41) is installed at the bottom of the heating tank (21). The servo motor (42) is mounted on the mounting plate (41). The drive gear (43) is fixedly installed on the top of the output shaft of the servo motor (42). The stirring rod (44) is rotatably connected to the bottom of the heating tank (21). The six-sided rod (45) is fixedly installed at the bottom of the stirring rod (44). The movable frame (46) is slidably connected to the mounting plate (41). The movable frame (46) is in contact with the mounting plate (41). The transmission gear (47) is rotatably connected inside the movable frame (46). The transmission gear (47) meshes with the drive gear (43).

3. An asphalt pavement sealing machine as described in claim 2, characterized in that: The adjustment mechanism includes an electromagnet (51) and an iron block (52). The electromagnet (51) is fixedly installed on the bottom of the mounting plate (41), and the iron block (52) is installed on the movable frame (46). The iron block (52) is located directly below the electromagnet (51).

4. An asphalt pavement sealing machine as described in claim 3, characterized in that: The material discharge control mechanism includes a drive shaft (61), a driven gear (62), a drive disc (63), an electric push rod (64), a disc (65), a slotted swing rod (66), a drive plate (67), a connecting rod (68), and a movable baffle (69). The drive shaft (61) is rotatably connected to the mounting plate (41). The driven gear (62) is mounted on the top of the drive shaft (61). The drive disc (63) is mounted on the bottom of the drive shaft (61). An electric push rod (64) is fixedly mounted on the bottom of the heating tank (21). A disc (65) is fixedly connected to the bottom of the telescopic shaft of the electric push rod (64). The telescopic shaft of the electric push rod (64) is telescopically connected to the disc (65). A slotted swing rod (66) is rotatably connected to the shaft. The slotted swing rod (66) contacts the top of the disc (65). The disc (65) is used to support the slotted swing rod (66). One side of the slotted swing rod (66) is slidably connected to the drive disc (63). The other side of the slotted swing rod (66) is slidably connected to the hose (24). The drive plate (67) is mounted on the telescopic shaft of the electric push rod (64). A pair of connecting rods (68) are rotatably connected to the drive plate (67). A movable baffle (69) is slidably connected to the lower part of the heating tank (21). The movable baffle (69) is rotatably connected to the other end of the two connecting rods (68).

5. An asphalt pavement sealing machine as described in claim 4, characterized in that: It also includes a scraping mechanism, which is mounted on the mounting plate (41). The scraping mechanism is used to scrape the liquid road sealant on the ground. The scraping mechanism includes a push bar (81), a movable rod (82), an adjusting plate (83), a return spring (84), a scraping plate (85), a support spring (86), and a pull rod frame (87). The push bar (81) is mounted on one side of the movable frame (46). The movable rod (82) is slidably connected to the mounting plate (41). 82) An adjusting plate (83) is fixedly connected to one end. A return spring (84) is connected between the adjusting plate (83) and the mounting plate (41). The push bar (81) contacts the adjusting plate (83). The scraper plate (85) is slidably connected to the mounting plate (41). A support spring (86) is connected between the scraper plate (85) and the mounting plate (41). The pull rod (87) is installed on the upper part of the scraper plate (85). The pull rod (87) is slidably connected to the adjusting plate (83).

6. An asphalt pavement sealing machine as described in claim 5, characterized in that: It also includes a heat insulation pad (9), and the heating barrel (21) is fitted with a heat insulation pad (9) on the outside.

7. An asphalt pavement sealing machine as described in claim 6, characterized in that: It also includes a fan (10), which is installed on the side of the lower part of the frame (1) near the vision inspection instrument (71).

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