An asphalt pavement crack repair apparatus

Abstract

This invention relates to the field of road repair technology, and in particular to an asphalt pavement crack repair device. Workers move the device by using a push handle, adjusting its position only according to the direction indicated by the directional plate, without needing to contact the injection section, thus avoiding being splashed by hot asphalt. When repairing road cracks, a crack cleaning brush is first used to scrape the inner wall of the crack, removing protruding gravel and ensuring smooth insertion of the injection section. Simultaneously, the road surface on both sides of the crack is cleaned to facilitate adhesion and smoothing of the overflowing asphalt. While the injection section fills the crack, a vibrating guide section rapidly pounds the overflowing asphalt up and down to promote its flow. Simultaneously, a linkage mechanism moves the injection section up and down, allowing the asphalt to penetrate deeper into the crack and adhere tightly to the crack wall, enhancing the repair effect.

Description

Technical Field

[0001] This invention relates to the field of road repair technology, specifically to a device for repairing cracks in asphalt pavement. Background Technology

[0002] Asphalt pavement refers to various types of pavement constructed by incorporating road asphalt materials into mineral materials. Asphalt binders improve the ability of paving aggregates to resist damage to the pavement from traffic and natural factors, resulting in a smooth, dust-free, impermeable, and durable pavement.

[0003] The repair of cracks in asphalt pavements should be based on the type and severity of the cracks, with the appropriate repair method selected accordingly. Common repair methods include surface sealing and grooving. Surface sealing is suitable for minor cracks with small widths, while grooving is suitable for larger cracks requiring more in-depth treatment.

[0004] Current technology for repairing road cracks using the crack-filling method typically involves aiming a nozzle at the crack and then drawing asphalt liquid from an asphalt truck to fill it. Because cracks are irregularly curved, it is inconvenient to operate the nozzle by hand, and hot asphalt can easily splash onto workers, causing burns. Moreover, the inner walls of the cracks are rugged, making it difficult for the asphalt to quickly fill the deep parts of the cracks when it spreads, resulting in many gaps inside the cracks. Insufficient asphalt filling leads to a short service life of the repaired road surface, making it prone to collapse and unevenness, and resulting in poor repair effects.

[0005] Therefore, in order to solve the above problems, the present invention provides an asphalt pavement crack repair device. Summary of the Invention

[0006] This invention provides an asphalt pavement crack repair device, comprising: a mounting base plate, wherein roller assemblies are symmetrically arranged on the lower end of the mounting base plate, each roller assembly consisting of two movable rollers spaced a certain distance apart, a push handle is fixedly installed on the rear side of the upper end of the mounting base plate, a liquid storage unit is fixedly installed on the upper end of the mounting base plate and in front of the push handle, a single gantry is fixedly installed on the upper end of the mounting base plate and in front of the liquid storage unit, a pressure pump is fixedly installed on the upper end of the horizontal plate of the single gantry, a filling unit is arranged on the mounting base plate and between the two vertical plates of the single gantry, the filling unit and the liquid storage unit are connected by the pressure pump, and a crack cleaning brush is fixedly installed on the lower end of the mounting base plate and in front of the filling unit; the filling unit includes a vibration guide section, a cooperating linkage section is arranged on the mounting base plate and between the two vertical plates of the single gantry, a directional pointing plate is arranged on the vibration guide section, and an injection section is arranged on the mounting base plate and in front of the single gantry. The system is connected to the linkage part and the injection part is connected to the output end of the pressurizing pump. A limit scraping part is provided at the lower end of the mounting base plate. The vibration guide part includes an open cylinder. An open cylinder is fixedly installed on the mounting base plate between two vertical plates of the single gantry. A sliding circular plate is slidably arranged inside the open cylinder. A fixed cylinder is fixedly installed at the middle of the lower end of the sliding circular plate. A cylindrical groove is opened on the fixed cylinder. A sliding guide rod is slidably arranged in the cylindrical groove. The lower end of the sliding guide rod passes through the base plate of the open cylinder and is fixedly connected to a mounting frame. A cylindrical rubber block is rotatably connected to the mounting frame. A linkage part is provided on the sliding guide rod and below the open cylinder. An electric telescopic component is fixedly installed on the fixed cylinder and above the sliding guide rod. The telescopic end of the electric telescopic component is fixedly connected to the sliding guide rod. A spring is sleeved on the fixed cylinder. The upper end of the spring is fixedly connected to the sliding circular plate. The lower end of the spring is fixedly connected to the bottom end of the open cylinder. A drive assembly is fixedly installed at the lower end of the horizontal plate of the single gantry and is connected to the sliding circular plate.

[0007] In one embodiment, the injection section includes a rectangular through hole 1. A rectangular through hole 1 is provided on the mounting base plate and located on the front side of the single gantry. The front and rear inner walls of the rectangular through hole 1 are provided with symmetrical upper and lower limiting grooves 1. A connecting slide plate is slidably arranged on the limiting grooves 1 on the same wall. A U-shaped mounting plate is fixedly connected between the connecting slides. The two vertical plates of the U-shaped mounting plate are provided with limiting grooves 2 at their opposite ends. An insert assembly is slidably arranged between the limiting grooves 2. An elastic telescopic rod is fixedly installed on the left and right inner walls of the rectangular through hole 1. The telescopic end of the elastic telescopic rod is fixedly connected to the vertical plate of the corresponding U-shaped mounting plate.

[0008] In one embodiment, the insertion assembly includes a mounting plate, and two limiting grooves are slidably disposed on the mounting plate. A funnel-shaped injection tube is fixedly installed on the upper middle part of the mounting plate. An anti-detachment ring is fixedly installed on the funnel-shaped injection tube at the upper end of the mounting plate. The upper straight section of the funnel-shaped injection tube is threadedly connected to an insertion tube through a sealing threaded cylinder. A stop ring is fixedly installed on the insertion tube at the upper side of its threaded section. A flexible connecting tube is fixedly connected to the upper end of the insertion tube. The flexible connecting tube is fixedly connected to the output end of the pressure pump. The lower straight section of the funnel-shaped injection tube passes through the horizontal plate of the U-shaped mounting plate and is connected to the mating linkage.

[0009] In one embodiment, the mating linkage includes a T-shaped connecting plate. A T-shaped connecting plate is fixedly installed on the sliding guide rod and located below the open cylinder. A sliding through hole with the same width as the outer diameter of the lower straight section of the funnel-shaped injection tube is opened in the middle of the transverse plate of the T-shaped connecting plate. The sliding through hole is slidably engaged with the lower straight section of the funnel-shaped injection tube. Limiting rings are fixedly installed on the funnel-shaped injection tube and on the upper and lower sides of the sliding through hole. A fixed connecting plate is fixedly installed at the lower end of the open cylinder and on the rear side of the longitudinal plate of the T-shaped connecting plate. A fixed connecting plate is fixedly installed symmetrically on the lower end of the mounting base plate about the rectangular through hole. A limiting groove is opened at the end of both the fixed connecting plate and the fixed connecting plate near the T-shaped connecting plate. The limiting groove is slidably engaged with the T-shaped connecting plate.

[0010] In one embodiment, the limiting and leveling part includes an electric telescopic component two. The electric telescopic component two is fixedly installed at the front and rear of the lower end of the mounting base plate. The electric telescopic component two on the front side is located in front of the rectangular through hole one, and the electric telescopic component two on the rear side is located in front of the open cylinder. The telescopic ends of the two electric telescopic components two are fixedly connected to the limiting frame. The limiting frame is located below the fixed connecting plate one and the fixed connecting plate two. A rectangular through hole three that fits the mounting frame is opened on the horizontal plate of the limiting frame and is directly opposite the lower side of the mounting frame. A sliding through hole two is opened on the horizontal plate of the limiting frame, and the sliding through hole two slides with the lower straight section of the funnel-shaped injection tube. A thickness groove is opened at the lower end of the rear plate of the limiting frame.

[0011] In one embodiment, the liquid storage unit includes a fixed cylinder. The fixed cylinder is fixedly installed on the upper part of the mounting base plate and in front of the push handle. A heating element is provided on the fixed cylinder. A stirring part is rotatably connected to the upper middle part of the fixed cylinder. A motor is fixedly installed on the upper end of the fixed cylinder through a motor base. The output shaft of the motor is fixedly connected to the stirring part. An inlet pipe is fixedly installed on the left side of the upper end of the fixed cylinder. A sealing cap is threaded onto the inlet pipe. A pressure balancing component is provided on the right side of the upper end of the fixed cylinder. An outlet pipe is fixedly installed on the lower side of the front end of the fixed cylinder. A valve is provided on the outlet pipe. A rigid connecting pipe is fixedly connected to the outlet pipe. The other end of the rigid connecting pipe is fixedly connected to the input end of a pressure pump.

[0012] In one embodiment, the stirring unit includes a central round rod, which is rotatably connected to the middle of the fixed cylinder. An output shaft of the motor is fixedly connected to the central round rod. Spiral blades are fixedly installed on the central round rod and inside the fixed cylinder. Discharge holes are evenly opened on the spiral blades. Positioning rings are fixedly installed on the central round rod and on the upper and lower sides of the spiral blades, respectively. Horizontal connecting rods are evenly fixedly installed on the positioning rings circumferentially. Vertical connecting rods are fixedly connected to the ends of the horizontal connecting rods that are close to the inner wall of the fixed cylinder. Matching support rods are evenly fixedly installed on the vertical connecting rods, with adjacent matching support rods pointing in opposite directions.

[0013] In one embodiment, the drive assembly includes an L-shaped mounting plate. The L-shaped mounting plate is fixedly mounted on the lower end of the horizontal plate of the single gantry. A positioning support plate is fixedly mounted on the upper end of the horizontal plate of the L-shaped mounting plate. A rotating disk is rotatably connected to the positioning support plate. A second motor is fixedly mounted on the vertical plate of the L-shaped mounting plate. The output shaft of the second motor is fixedly connected to the rotating disk. A cylindrical protrusion is fixedly mounted on the end of the rotating disk away from the second motor and near the edge of the rotating disk. A hinged support is fixedly mounted on the middle of the upper end of the sliding disk. The hinged support and the cylindrical protrusion are hinged together by a connecting rod.

[0014] In one embodiment, a rectangular through hole 2 is provided on the fixed connecting plate 2 and located below the limiting slide groove 3. The directional pointing plate slides through the two rectangular through holes 2, and the middle part of the directional pointing plate slides in conjunction with the lower straight section of the funnel-shaped injection tube in the vertical direction.

[0015] In summary, the present invention has at least one of the following beneficial technical effects:

[0016] 1. This invention provides an asphalt pavement crack repair device. Workers push the device by using a push handle and adjust its position according to the direction of the directional plate, without needing to contact the injection section, thus avoiding being splashed by hot asphalt. When repairing pavement cracks, the inner wall of the crack is first scraped by a crack cleaning brush to remove protruding gravel, ensuring smooth insertion of the injection section. At the same time, the road surface on both sides of the crack is cleaned to facilitate the adhesion and smoothing of the overflowing asphalt liquid to the ground. While the injection section fills the crack, the vibrating guide section rapidly pounds the injection surface to promote the flow of asphalt liquid. Simultaneously, the linkage section moves the injection section up and down, allowing the asphalt liquid to penetrate deeper into the crack and adhere tightly to the crack wall, enhancing the repair effect. As the moving rollers move, the limiting and leveling section not only limits the overflowing asphalt liquid laterally but also levels the upper surface of the asphalt, ensuring a consistent asphalt thickness and a neat repaired pavement.

[0017] 2. The vibrating guide section is designed to move up and down with the linkage section via a sliding guide rod, allowing the injection section to move up and down in the crack to inject asphalt liquid. This ensures that the asphalt liquid can deeply fill the crack during injection. At the same time, the elastic cylindrical rubber block can pound the overflowing asphalt liquid up and down, and the vibration promotes the asphalt liquid to further fill the crack.

[0018] 3. The injection section, driven by the vibration guide section, moves up and down in a reciprocating motion, allowing the lower straight section of the funnel-shaped injection pipe to move deep and shallow within the crack, injecting into the deeper parts of the crack. At the same time, the up and down movement increases the impact and fluidity of the asphalt liquid during injection, further promoting the asphalt liquid to fill the gaps and enhancing the repair effect.

[0019] 4. The set-in linkage part drives the T-shaped connecting plate to move up and down through the sliding guide rod. Under the restriction of the limit ring, the funnel-shaped injection pipe can move up and down with the T-shaped connecting plate. At the same time, the set sliding through hole provides space for the funnel-shaped injection pipe to move left and right with the crack. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a top-view planar structural diagram of the present invention.

[0023] Figure 3 This is a schematic diagram of the upward-viewing planar structure of the present invention.

[0024] Figure 4 This is a schematic diagram of the longitudinal vertical half-section structure of the present invention.

[0025] Figure 5 For the present invention Figure 4 Enlarged view of point M in the middle.

[0026] Figure 6 For the present invention Figure 4 Enlarged view at point N in the middle.

[0027] Figure 7 For the present invention Figure 4 Cross-sectional view along the AA direction.

[0028] Figure 8 For the present invention Figure 4 Cross-sectional view of the middle BB direction.

[0029] Figure 9 For the present invention Figure 4 Cross-sectional view along the CC direction.

[0030] Figure 10 For the present invention Figure 4 Cross-sectional view along the DD direction.

[0031] Reference numerals: 1. Mounting base plate; 2. Moving roller; 3. Push handle; 4. Liquid storage unit; 41. Fixed cylinder; 42. Heating element; 43. Stirring section; 431. Central rod; 432. Spiral blade; 433. Discharge hole; 434. Positioning ring; 435. Horizontal connecting rod; 436. Vertical connecting rod; 437. Supporting rod; 44. Motor 1; 45. Liquid inlet pipe; 46. Air pressure balancing component; 47. Liquid outlet pipe; 48. Rigid connection. 5. Connector; 6. Single gantry; 7. Pressurization pump; 8. Filling unit; 9. Vibration guide section; 10. Opening cylinder; 11. Sliding circular plate; 12. Fixed cylinder; 13. Cylindrical groove; 14. Sliding guide rod; 15. Mounting frame; 16. Cylindrical rubber block; 17. Electric telescopic component one; 18. Drive assembly; 19. L-shaped mounting plate; 10. Positioning support plate; 11. Rotating disk; 12. Motor two; 13. 7196. Cylindrical protrusion; 7197. Hinge support; 7198. Connecting rod; 72. Interlocking part; 721. T-shaped connecting plate; 722. Sliding through hole one; 723. Limiting ring; 724. Fixed connecting plate one; 725. Fixed connecting plate two; 726. Limiting groove three; 73. Orientation guide plate; 74. Filling part; 741. Rectangular through hole one; 742. Limiting groove one; 743. Connecting slide plate; 744. U-shaped mounting plate; 745. Limiting 746. Slide groove 2; 7461. Insert assembly; 7462. Mounting plate; 7463. Funnel-shaped injection tube; 7464. Anti-detachment ring; 7465. Sealing threaded cylinder; 7466. Insertion tube; 7466. Stop ring; 7467. Flexible connecting tube; 747. Elastic telescopic rod; 75. Limiting scraping part; 751. Electric telescopic part 2; 752. Limiting frame; 753. Rectangular through hole 3; 754. Sliding through hole 2; 755. Thickness limiting groove; 8. Crack cleaning brush. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0033] Please see Figure 1 , Figure 2 and Figure 3 An asphalt pavement crack repair device includes: a mounting base plate 1, movable rollers 2, a push handle 3, a liquid storage unit 4, a single gantry 5, a pressure pump 6, a filling unit 7, and a crack cleaning brush 8. The mounting base plate 1 has roller assemblies symmetrically arranged on its lower end, each roller assembly consisting of two movable rollers 2 distributed front to back. A push handle 3 is fixedly installed on the rear side of the upper end of the mounting base plate 1. A liquid storage unit 4 is fixedly installed on the upper end of the mounting base plate 1 and in front of the push handle 3. A single gantry 5 is fixedly installed on the upper end of the mounting base plate 1 and in front of the liquid storage unit 4. A pressure pump 6 is fixedly installed on the upper horizontal plate of the single gantry 5. A filling unit 7 is arranged on the mounting base plate 1 and between the two vertical plates of the single gantry 5. The filling unit 7 is connected to the liquid storage unit 4 via the pressure pump 6. A crack cleaning brush 8 is fixedly installed on the lower end of the mounting base plate 1 and in front of the filling unit 7.

[0034] Please see Figure 1 , Figure 3 , Figure 4 and Figure 5 The filling unit 7 includes a vibration guide section 71, a linkage section 72, an orientation guide plate 73, an injection section 74, and a limiting scraping section 75. The vibration guide section 71 is provided on the mounting base plate 1 and between the two vertical plates of the single gantry 5. The vibration guide section 71 is provided with the linkage section 72, and the orientation guide plate 73 is provided on the linkage section 72. The injection section 74 is provided on the mounting base plate 1 and in front of the single gantry 5. The injection section 74 is connected to the linkage section 72 and is connected to the output end of the pressure pump 6. The limiting scraping section 75 is provided at the lower end of the mounting base plate 1.

[0035] First, asphalt liquid (repair material) is poured into the storage unit 4. The storage unit 4 continuously agitates and heats the asphalt liquid to ensure its uniformity and fluidity. Workers use the push handle 3 to push the mounting base plate 1. During the crack filling process, because the road surface cracks are irregularly curved, the position needs to be adjusted left and right according to the direction of the orientation guide plate 73 (the orientation guide plate 73 should be a bright color; when the orientation guide plate 73 extends from the left side below the mounting base plate 1, it indicates that the mounting base plate 1 needs to be adjusted to the left, and vice versa). When repairing road surface cracks, the inner wall of the crack is first scraped with the crack cleaning brush 8 to remove the protruding gravel on the inner wall of the crack, ensuring the smooth insertion of the injection part 74, and also cleaning the crack. The road surface on both sides is cleaned to facilitate the adhesion and smoothing of the overflowing asphalt to the ground. Then, the injection unit 74 is aligned with the crack opening, and the asphalt is pumped from the storage unit 4 into the injection unit 74 by the pressure pump 6. The injection unit 74 fills the crack. At the same time, the vibrating guide unit 71 rapidly pounds the road surface up and down to promote the flow of the asphalt, while the linkage unit 72 moves the injection unit 74 up and down, allowing the asphalt to penetrate deeper into the crack and adhere tightly to the crack wall, enhancing the repair effect. As the moving roller 2 moves, the limiting and leveling unit 75 not only limits the overflowing asphalt to the side but also levels the upper surface of the asphalt, ensuring a certain asphalt thickness, and finally completing the crack filling work.

[0036] Please see Figure 4 , Figure 5 , Figure 6 and Figure 8The vibration guide section 71 includes an open cylinder 711, a sliding circular plate 712, a fixed cylinder 713, a cylindrical groove 714, a sliding guide rod 715, a mounting frame 716, a cylindrical rubber block 717, an electric telescopic component 718, and a drive assembly 719. The open cylinder 711 is fixedly installed on the mounting base plate 1 between two vertical plates of the single gantry 5. A sliding circular plate 712 is slidably disposed within the open cylinder 711. A fixed cylinder 713 is fixedly installed at the lower center of the sliding circular plate 712. A cylindrical groove 714 is formed on the fixed cylinder 713, and a sliding guide rod 715 is slidably disposed within the cylindrical groove 714. The lower end of the sliding guide rod 715 passes through the bottom of the open cylinder 711. A mounting frame 716 is fixedly connected to the plate. A cylindrical rubber block 717 is rotatably connected to the mounting frame 716. A cooperating linkage part 72 is provided on the sliding guide rod 715 and located below the open cylinder 711. An electric telescopic component 718 is fixedly installed on the fixed cylinder 713 and located above the sliding guide rod 715. The telescopic end of the electric telescopic component 718 is fixedly connected to the sliding guide rod 715. A spring is sleeved on the fixed cylinder 713. The upper end of the spring is fixedly connected to the sliding circular plate 712, and the lower end of the spring is fixedly connected to the bottom end of the open cylinder 711. A drive assembly 719 is fixedly installed at the lower end of the horizontal plate of the single gantry 5 and is connected to the sliding circular plate 712.

[0037] When the vibration guide unit 71 is working, the electric telescopic component 718 first pushes the sliding guide rod 715 downward to the limit position of the cylindrical groove 714. At this time, the cylindrical rubber block 717 is a certain distance from the ground, and the injection unit 74 connected by the linkage part 72 is inserted into the crack by a small section. Then, the drive component 719 drives the sliding circular plate 712 to move up and down, so that the sliding guide rod 715 can move up and down with the linkage part 72, so that the injection unit 74 can move up and down in the crack to inject asphalt liquid. This ensures that the asphalt liquid can penetrate deep into the crack during injection. At the same time, the elastic cylindrical rubber block 717 can beat the road surface up and down, and the vibration promotes the accelerated flow of asphalt liquid to further fill the crack. Through the synergistic effect, the asphalt liquid can better adhere to the inner wall of the crack to ensure a dense repair and extend the service life of the road surface.

[0038] Please see Figure 5 , Figure 6 and Figure 8The drive assembly 719 includes an L-shaped mounting plate 7191, a positioning support plate 7192, a rotating disk 7193, a second motor 7194, a cylindrical protrusion 7195, a hinge support 7196, and a connecting rod 7197. The L-shaped mounting plate 7191 is fixedly mounted on the lower end of the horizontal plate of the single gantry 5. The positioning support plate 7192 is fixedly mounted on the upper end of the horizontal plate of the L-shaped mounting plate 7191. The rotating disk 7193 is rotatably connected to the positioning support plate 7192. The second motor 7194 is fixedly mounted on the vertical plate of the L-shaped mounting plate 7191. The output shaft of the second motor 7194 is fixed to the rotating disk 7193. A cylindrical protrusion 7195 is fixedly installed at the end of the rotating disk 7193 away from the motor 7194 and near the edge of the rotating disk 7193. A hinged support 7196 is fixedly installed at the middle of the upper end of the sliding disk. The hinged support 7196 and the cylindrical protrusion 7195 are hinged together by a connecting rod 7197. The rotating disk 7193 is driven to rotate by the motor 7194, and the cylindrical protrusion 7195 drives the connecting rod 7197 to swing regularly, which drives the sliding circular plate 712 to move up and down in the open cylinder 711, thereby realizing the up and down reciprocating motion of the sliding guide rod 715.

[0039] Please see Figure 4 , Figure 5 and Figure 9 The injection section 74 includes a rectangular through hole 741, a limiting slide groove 742, a connecting slide plate 743, a U-shaped mounting plate 744, a second limiting slide groove 745, an insert assembly 746, and an elastic telescopic rod 747. The rectangular through hole 741 is provided on the mounting base plate 1 and located on the front side of the single gantry 5. The front and rear inner walls of the rectangular through hole 741 are provided with symmetrical upper and lower limiting slide grooves 742. The limiting slide grooves 742 on the same wall surface are slidably arranged together. There is a connecting slide plate 743, and a U-shaped mounting plate 744 is fixedly connected to the connecting slide plates 743. The two vertical plates of the U-shaped mounting plate 744 have limit grooves 745 at their opposite ends. An insert assembly 746 is slidably arranged between the limit grooves 745. An elastic telescopic rod 747 is fixedly installed on the left and right inner walls of the rectangular through hole 741. The telescopic end of the elastic telescopic rod 747 is fixedly connected to the vertical plate of the corresponding U-shaped mounting plate 744.

[0040] Please see Figure 5 and Figure 9The insertion assembly 746 includes a mounting plate 7461, a funnel-shaped injection tube 7462, an anti-detachment ring 7463, a sealing threaded cylinder 7464, an insertion tube 7465, a stop ring 7466, and a flexible connecting tube 7467. The mounting plate 7461 is slidably arranged between the two limiting slide grooves 745. The funnel-shaped injection tube 7462 is fixedly installed on the upper middle part of the mounting plate 7461, and an anti-detachment ring is fixedly installed on the funnel-shaped injection tube 7462 and located at the upper end of the mounting plate 7461. 7463, the upper straight section of the funnel-shaped injection tube 7462 is threadedly connected to the insertion tube 7465 via a sealing threaded sleeve 7464. A stop ring 7466 is fixedly installed on the insertion tube 7465 and located on the upper side of its threaded section. A flexible connecting tube 7467 is fixedly connected to the upper end of the insertion tube 7465. The flexible connecting tube 7467 is fixedly connected to the output end of the pressure pump 6. The lower straight section of the funnel-shaped injection tube 7462 passes through the horizontal plate of the U-shaped mounting plate 744 and is connected to the mating linkage part 72.

[0041] Insert the insertion tube 7465 directly into the upper straight section of the funnel-shaped injection tube 7462, and then rotate the sealing threaded cylinder 7464 downward to connect it with the upper straight section of the funnel-shaped injection tube 7462 to achieve a seal. This connection method is easy to disassemble.

[0042] Initially, under the elastic force of the two elastic telescopic rods 747, the U-shaped mounting plate 744 is stable in the middle of the rectangular through hole 741. During operation, under the linkage of the cooperating linkage 72, the lower straight section of the funnel-shaped injection pipe 7462 is inserted into the crack a short distance. As the vibration guide 71 drives the cooperating linkage 72 to move up and down, the lower straight section of the funnel-shaped injection pipe 7462 can move in and out of the crack, injecting into the deep part of the crack. At the same time, the up and down movement increases the impact force and fluidity of the asphalt liquid during injection, further promoting the filling of the crack by the asphalt liquid and enhancing the repair effect.

[0043] Please see Figure 5 , Figure 9 and Figure 10The mating linkage 72 includes a T-shaped connecting plate 721, a sliding through hole 722, a limiting ring 723, a fixed connecting plate 724, a fixed connecting plate 725, and a limiting sliding groove 726. A T-shaped connecting plate 721 is fixedly installed on the sliding guide rod 715 and below the open cylinder 711. A sliding through hole 722 with a width equal to the outer diameter of the lower straight section of the funnel-shaped injection tube 7462 is opened in the middle of the transverse plate of the T-shaped connecting plate 721. The sliding through hole 722 slides in conjunction with the lower straight section of the funnel-shaped injection tube 7462. Limiting rings 723 are fixedly installed on the funnel-shaped injection tube 7462 above and below the sliding through hole 722, respectively. A limiting ring 723 is fixedly installed at the lower end of the open cylinder 711 and below the T-shaped connecting plate 721. A fixed connecting plate 724 is fixedly installed on the rear side of the longitudinal plate 21. A fixed connecting plate 725 is fixedly installed symmetrically on the left and right sides of the lower end of the mounting base plate 1 about the rectangular through hole 741. A limiting groove 726 is opened at the end of the fixed connecting plate 724 and the fixed connecting plate 725 near the T-shaped connecting plate 721. The limiting groove 726 slides with the T-shaped connecting plate 721. A rectangular through hole 725 is opened on the two fixed connecting plates 725 and below the limiting groove 726. A directional pointing plate 73 slides through the two rectangular through holes 72. A matching through hole is opened in the upper middle part of the directional pointing plate 73. The matching through hole slides with the lower straight section of the funnel-shaped injection tube 7462 in the vertical direction.

[0044] The sliding guide rod 715 drives the T-shaped connecting plate 721 to move up and down. Under the restriction of the limiting ring 723, the funnel-shaped injection pipe 7462 can move up and down with the T-shaped connecting plate 721. At the same time, the sliding through hole 722 provides space for the funnel-shaped injection pipe 7462 to move left and right with the crack. The fixed connecting plate 724, the fixed connecting plate 725, and the limiting slide groove 726 can ensure the stable up and down movement of the T-shaped connecting plate 721. The funnel-shaped injection pipe When 7462 moves left and right adaptively along the crack path, it will slide left and right within the rectangular through hole 2 along with the azimuth guide plate 73, so that the azimuth guide plate 73 can be moved out on the left and right sides of the mounting base plate 1. When the worker sees the azimuth guide plate 73 exposed on one side, he can grasp the push handle 3 to move and adjust in the same direction to avoid large deviations that could damage the funnel-shaped injection pipe 7462. When the funnel-shaped injection pipe 7462 moves along the crack trajectory, the elastic telescopic rod 747 deforms accordingly.

[0045] Please see Figure 5 and Figure 9The limiting and leveling part 75 includes an electric telescopic component 751, a limiting frame 752, a rectangular through hole 753, a sliding through hole 754, and a thickness limiting groove 755. Electric telescopic components 751 are fixedly installed at the front and rear of the lower end of the mounting base plate 1. The front electric telescopic component 751 is located in front of the rectangular through hole 741, and the rear electric telescopic component 751 is located behind the open cylinder 711. The telescopic ends of the two electric telescopic components 751 are jointly fixedly connected to the limiting frame 752, which is located below the fixed connecting plate 724 and the fixed connecting plate 725. A rectangular through hole 753, which is clearance-fitted with the mounting frame 716, is provided on the horizontal plate of the limiting frame 752 and directly opposite the lower side of the mounting frame 716. The horizontal... The plate has a sliding through hole 754, which slides in conjunction with the lower straight section of the funnel-shaped injection pipe 7462. A thickness limiting groove 755 is provided at the lower end of the rear side plate of the limiting frame 752. When the lower straight section of the funnel-shaped injection pipe 7462 is inserted into the crack, the telescopic end of the electric telescopic component 751 extends a certain length to push the limiting frame 752 downward, so that the left and right side plates of the limiting frame 752 are in contact with the road surface. With the coordinated work of the vibration guide part 71 and the injection part 74, the limiting frame 752 can limit the width of the overflowing asphalt liquid to the left and right under the movement of the moving roller 2, so as to avoid excessive spillage. At the same time, the thickness limiting groove 755 can smooth the upper end of the overflowing asphalt and scrape away the excess asphalt to ensure that the repaired road surface asphalt is neat.

[0046] Please see Figure 2 , Figure 4 and Figure 7The liquid storage unit 4 includes a fixed cylinder 41, a heating element 42, a stirring part 43, a motor 44, an inlet pipe 45, a pressure balancing component 46, an outlet pipe 47, and a rigid connecting pipe 48. The fixed cylinder 41 is fixedly installed on the upper end of the mounting base 1, in front of the push handle 3. A heating element 42 is installed on the fixed cylinder 41. A stirring part 43 is rotatably connected to the upper middle part of the fixed cylinder 41. A motor 44 is fixedly installed on the upper end of the fixed cylinder 41 via a motor mount. The output shaft of the motor 44 is fixedly connected to the stirring part 43. An inlet pipe 45 is fixedly installed on the upper left side of the fixed cylinder 41, and a sealing cap is threaded onto the inlet pipe 45. A pressure balancing component 46 is installed on the upper right side of the fixed cylinder 41. A rigid connecting pipe 48 is fixedly installed on the lower front side of the fixed cylinder 41. The device is equipped with an outlet pipe 47, which has a valve. A rigid connecting pipe 48 is fixedly connected to the outlet pipe 47, and the other end of the rigid connecting pipe 48 is fixedly connected to the input end of the pressure pump 6. First, asphalt liquid is poured into the fixed cylinder 41 through the inlet pipe 45. Then, the sealing cap is screwed onto the inlet pipe 45 to seal it. The stirring unit 43 driven by the motor 44 fully stirs the asphalt liquid stored in the fixed cylinder 41 to avoid liquid stratification, which would affect the properties of the repair material. At the same time, the heating element 42 maintains the temperature of the injected hot asphalt liquid to ensure its fluidity. As the moving roller 2 moves, the valve opens, and the pressure pump 6 can draw the asphalt liquid through the rigid connecting pipe 48 and send it into the injection unit 74.

[0047] Please see Figure 4 and Figure 7The stirring unit 43 includes a central round rod 431, a spiral blade 432, a discharge hole 433, a positioning ring 434, a horizontal connecting rod 435, a vertical connecting rod 436, and a supporting rod 437. The central round rod 431 is rotatably connected to the upper middle part of the fixed cylinder 41. The output shaft of the motor 44 is fixedly connected to the central round rod 431. The spiral blade 432 is fixedly installed on the central round rod 431 and inside the fixed cylinder 41. The discharge holes 433 are evenly distributed on the spiral blade 432. Positioning rings 434 are fixedly installed on the central round rod 431 and on the upper and lower sides of the spiral blade 432, respectively. Horizontal connecting rods 435 are evenly fixedly installed on the positioning rings 434 in the circumferential direction. The upper and lower horizontal connecting rods 435 are close to the fixed cylinder 437. A vertical connecting rod 436 is fixedly connected to one end of the inner wall of the fixed cylinder 41. Matching support rods 437 are evenly fixedly installed on the vertical connecting rod 436, with adjacent matching support rods 437 pointing in opposite directions. The central circular rod 431 is driven to rotate by a motor 44, allowing the spiral blades 432 on it to fully agitate the asphalt liquid. The evenly spaced discharge holes 433 facilitate the flow of the liquid, reducing resistance to the spiral blades 432 and achieving uniform dispersion of the liquid. Simultaneously, the evenly spaced circumferentially spaced supporting support rods 437, in conjunction with the central spiral blades 432, ensure thorough agitation of the asphalt liquid within the fixed cylinder 41, resulting in uniform heating of the asphalt liquid and thus guaranteeing its fluidity.

[0048] The working principle of this invention: The worker pushes the equipment by controlling the push handle 3. During the crack filling process, since the road surface cracks are irregularly curved, the left and right positions need to be adjusted according to the direction of the orientation guide plate 73 (the color of the orientation guide plate 73 should be set to a bright color. When the orientation guide plate 73 extends from the left side below the mounting base plate 1, it means that the equipment needs to be adjusted to the left, and vice versa). When repairing road surface cracks, the inner wall of the crack is first scraped by the crack cleaning brush 8 to remove the protruding gravel on the inner wall of the crack, ensuring the smooth insertion of the injection part 74. At the same time, the road surface on both sides of the crack is cleaned to facilitate the adhesion and smoothness of the overflowing asphalt liquid to the ground. Then, the injection section 74 is aligned with the crack opening, and the asphalt liquid is pumped from the storage unit 4 into the injection section 74 by the pressure pump 6. The injection section 74 fills the crack. At the same time, the vibrating guide section 71 rapidly pounds the injection surface to promote the flow of the asphalt liquid, and the linkage section 72 drives the injection section 74 to move up and down, so that the asphalt liquid can penetrate deeper into the crack and adhere tightly to the crack wall, enhancing the repair effect. As the moving roller 2 moves, the limiting and leveling section 75 can not only limit the overflow of asphalt liquid to the side, but also level the upper surface of the asphalt, so that the asphalt thickness is constant, and finally complete the crack filling work.

[0049] In the description of this invention, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] Furthermore, the terms "first," "second," "number one," "number two," "one," and "two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An asphalt pavement crack repair device, comprising: The mounting base plate (1) is symmetrically provided with roller sets on the lower end of the mounting base plate (1). Each roller set consists of two movable rollers (2) spaced a certain distance apart. A push handle (3) is fixedly installed on the rear side of the upper end of the mounting base plate (1). A liquid storage unit (4) is fixedly installed on the upper end of the mounting base plate (1) in front of the push handle (3). The feature is that a single gate frame (5) is fixedly installed on the upper end of the mounting base plate (1) in front of the liquid storage unit (4). A pressure pump (6) is fixedly installed on the upper end of the horizontal plate of the single gate frame (5). A filling unit (7) is provided on the mounting base plate (1) between the two vertical plates of the single gate frame (5). The filling unit (7) is connected to the liquid storage unit (4) through the pressure pump (6). A seam cleaning brush (8) is fixedly installed on the lower end of the mounting base plate (1) in front of the filling unit (7). The filling unit (7) includes a vibration guide section (71), which is provided on the mounting base plate (1) between two vertical plates of the single gantry (5). The vibration guide section (71) is provided with a cooperating linkage section (72), and the cooperating linkage section (72) is provided with a directional pointing plate (73). The mounting base plate (1) is provided with an injection section (74) located in front of the single gantry (5). The injection section (74) is connected to the cooperating linkage section (72) and is connected to the output end of the pressure pump (6). The lower end of the mounting base plate (1) is provided with a limit scraping section (75). The vibration guide section (71) includes an open cylinder (711). The open cylinder (711) is fixedly installed on the mounting base plate (1) between two vertical plates of the single gantry (5). A sliding circular plate (712) is slidably arranged inside the open cylinder (711). A fixed cylinder (713) is fixedly installed at the lower middle of the sliding circular plate (712). A cylindrical groove (714) is opened on the fixed cylinder (713). A sliding guide rod (715) is slidably arranged inside the cylindrical groove (714). The lower end of the sliding guide rod (715) passes through the base plate of the open cylinder (711) and is fixedly connected to a mounting frame (716). A cylindrical rubber block is rotatably connected to the mounting frame (716). 717), a cooperating linkage part (72) is provided on the sliding guide rod (715) and located below the open cylinder (711). An electric telescopic component (718) is fixedly installed on the fixed cylinder (713) and located above the sliding guide rod (715). The telescopic end of the electric telescopic component (718) is fixedly connected to the sliding guide rod (715). A spring is sleeved on the fixed cylinder (713). The upper end of the spring is fixedly connected to the sliding circular plate (712). The lower end of the spring is fixedly connected to the bottom end of the open cylinder (711). A drive assembly (719) is fixedly installed at the lower end of the horizontal plate of the single gantry (5). The drive assembly (719) is connected to the sliding circular plate (712).

2. The asphalt pavement crack repair equipment according to claim 1, characterized in that: The injection section (74) includes a rectangular through hole (741). A rectangular through hole (741) is provided on the mounting base plate (1) and located in front of the single gantry (5). The inner walls of the rectangular through hole (741) are provided with symmetrical upper and lower limiting slide grooves (742). A connecting slide plate (743) is slidably provided on the limiting slide grooves (742) on the same wall. A U-shaped mounting plate (744) is fixedly connected between the connecting slide plates (743). A limiting slide groove (745) is provided at the opposite ends of the two vertical plates of the U-shaped mounting plate (744). An insert assembly (746) is slidably provided between the limiting slide grooves (745). An elastic telescopic rod (747) is fixedly installed on the left and right inner walls of the rectangular through hole (741). The telescopic end of the elastic telescopic rod (747) is fixedly connected to the vertical plate of the corresponding U-shaped mounting plate (744).

3. The asphalt pavement crack repair equipment according to claim 2, characterized in that: The insertion assembly (746) includes a mounting plate (7461), and the mounting plate (7461) is slidably disposed between two limiting slide grooves (745). A funnel-shaped injection tube (7462) is fixedly installed on the upper middle part of the mounting plate (7461). An anti-detachment ring (7463) is fixedly installed on the funnel-shaped injection tube (7462) and located at the upper end of the mounting plate (7461). The upper straight section of the funnel-shaped injection tube (7462) passes through a sealing threaded cylinder (7463). 464) An insertion tube (7465) is threadedly connected. A stop ring (7466) is fixedly installed on the insertion tube (7465) and on the upper side of its threaded section. A flexible connecting tube (7467) is fixedly connected to the upper end of the insertion tube (7465). The flexible connecting tube (7467) is fixedly connected to the output end of the pressure pump (6). The lower straight section of the funnel-shaped injection tube (7462) passes through the horizontal plate of the U-shaped mounting plate (744) and is connected to the mating linkage part (72).

4. The asphalt pavement crack repair equipment according to claim 3, characterized in that: The linkage part (72) includes a T-shaped connecting plate (721). The T-shaped connecting plate (721) is fixedly installed on the sliding guide rod (715) and below the open cylinder (711). A sliding through hole (722) with the same width as the outer diameter of the lower straight section of the funnel-shaped injection tube (7462) is opened in the middle of the horizontal plate of the T-shaped connecting plate (721). The sliding through hole (722) slides with the lower straight section of the funnel-shaped injection tube (7462). The upper and lower sides of the sliding through hole (722) on the funnel-shaped injection tube (7462) are respectively A limiting ring (723) is fixedly installed. A fixed connecting plate one (724) is fixedly installed at the lower end of the open cylinder (711) and on the rear side of the longitudinal plate of the T-shaped connecting plate (721). A fixed connecting plate two (725) is fixedly installed symmetrically on the lower end of the mounting base plate (1) about the rectangular through hole one (741). A limiting groove three (726) is opened at the end of the fixed connecting plate one (724) and the fixed connecting plate two (725) near the T-shaped connecting plate (721). The limiting groove three (726) slides with the T-shaped connecting plate (721).

5. The asphalt pavement crack repair equipment according to claim 4, characterized in that: The limiting and leveling part (75) includes an electric telescopic component two (751). The electric telescopic component two (751) is fixedly installed at the front and rear of the lower end of the mounting base plate (1). The electric telescopic component two (751) on the front side is located in front of the rectangular through hole one (741), and the electric telescopic component two (751) on the rear side is located in front of the open cylinder (711). The telescopic ends of the two electric telescopic components two (751) are fixedly connected to the limiting frame (752), and the limiting frame (752) is located on the fixed connecting plate one. (724) On the lower side of the fixed connecting plate 2 (725), on the horizontal plate of the limiting frame (752) and directly opposite the lower side of the mounting frame (716), there is a rectangular through hole 3 (753) that is clearance-fitted with the mounting frame (716). On the horizontal plate of the limiting frame (752), there is a sliding through hole 2 (754), and the sliding through hole 2 (754) is slidingly fitted with the lower straight section of the funnel-shaped injection tube (7462). A thickness-limiting groove (755) is opened at the lower end of the rear side plate of the limiting frame (752).

6. The asphalt pavement crack repair equipment according to claim 1, characterized in that: The liquid storage unit (4) includes a fixed cylinder (41). The fixed cylinder (41) is fixedly installed on the upper end of the mounting base plate (1) and in front of the push handle (3). A heating element (42) is provided on the fixed cylinder (41). A stirring part (43) is rotatably connected to the upper middle part of the fixed cylinder (41). A motor (44) is fixedly installed on the upper end of the fixed cylinder (41) through a motor base. The output shaft of the motor (44) is fixedly connected to the stirring part (43). An inlet pipe (45) is fixedly installed on the upper left side of the body (41). A sealing cap is threaded onto the inlet pipe (45). A pressure balancing component (46) is installed on the upper right side of the fixed cylinder (41). An outlet pipe (47) is fixedly installed on the lower front side of the fixed cylinder (41). A valve is installed on the outlet pipe (47). A rigid connecting pipe (48) is fixedly connected to the outlet pipe (47). The other end of the rigid connecting pipe (48) is fixedly connected to the input end of the pressure pump (6).

7. The asphalt pavement crack repair equipment according to claim 6, characterized in that: The stirring part (43) includes a central round rod (431). The central round rod (431) is rotatably connected to the middle part of the fixed cylinder (41). The output shaft of motor 1 (44) is fixedly connected to the central round rod (431). A spiral blade (432) is fixedly installed on the central round rod (431) and inside the fixed cylinder (41). The spiral blade (432) is evenly provided with a material discharge hole (433). A positioning ring (434) is fixedly installed on the central round rod (431) and on the upper and lower sides of the spiral blade (432). A horizontal connecting rod (435) is evenly fixedly installed on the positioning ring (434) in the circumferential direction. The upper and lower opposite horizontal connecting rods (435) are jointly fixedly connected to a vertical connecting rod (436) at one end near the inner wall of the fixed cylinder (41). A matching support rod (437) is evenly fixedly installed on the vertical connecting rod (436) in the upper and lower directions. The adjacent matching support rods (437) point in opposite directions.

8. The asphalt pavement crack repair equipment according to claim 1, characterized in that: The drive assembly (719) includes an L-shaped mounting plate (7191). The lower end of the horizontal plate of the single gantry (5) is fixedly mounted with the L-shaped mounting plate (7191). The upper end of the horizontal plate of the L-shaped mounting plate (7191) is fixedly mounted with a positioning support plate (7192). A rotating disk (7193) is rotatably connected to the positioning support plate (7192). A second motor (7194) is fixedly mounted on the vertical plate of the L-shaped mounting plate (7191). The output shaft of the second motor (7194) is fixedly connected to the rotating disk (7193). A cylindrical protrusion (7195) is fixedly mounted at the end of the rotating disk (7193) away from the second motor (7194) and near the edge of the rotating disk (7193). A hinge support (7196) is fixedly mounted in the middle of the upper end of the sliding disk. The hinge support (7196) and the cylindrical protrusion (7195) are hinged together by a connecting rod (7197).

9. The asphalt pavement crack repair equipment according to claim 4, characterized in that: The fixed connecting plate 2 (725) is provided with a rectangular through hole 2 located on the lower side of the limiting slide groove 3 (726). The directional pointing plate (73) slides through the two rectangular through holes 2. The upper middle part of the directional pointing plate (73) slides in the vertical direction with the lower straight section of the funnel-shaped injection pipe (7462).

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