A national and provincial highway maintenance crack filling device

Abstract

The application belongs to the technical field of crack filling, and specifically relates to a crack filling device for national and provincial road maintenance. Since dust or impurities are usually mixed in the cracks, it is difficult for asphalt to flow and form in the cracks quickly and comprehensively, resulting in poor crack repair effect and reduced road maintenance efficiency. The crack filling device comprises a moving platform, a filling and pouring joint assembly arranged on the moving platform, vertical blocks symmetrically arranged on both sides of the moving platform, moving wheels symmetrically arranged on the vertical blocks, a handle and mounting clamps arranged on the moving platform, a filling barrel connected with the mounting clamps, a filling hose arranged on the filling barrel and connected with a spray pipe. The device blows away the garbage or dust and other impurities accumulated in the cracks through the wind mechanism, so that the asphalt can flow and form in the cracks quickly and comprehensively, thereby improving the crack repair effect and the road maintenance efficiency.

Description

Technical Field

[0001] This invention belongs to the field of crack filling technology, specifically a crack filling device for the maintenance of national and provincial highways. Background Technology

[0002] Road maintenance refers to the upkeep and maintenance of roads; maintaining roads and their structures and facilities to preserve their usability as much as possible, promptly restoring damaged parts, ensuring safe, comfortable, and smooth traffic flow, and saving transportation costs and time; adopting appropriate technical measures to improve project quality, extend the service life of roads, and postpone reconstruction. With the increasing grade of roads, the significant increase in traffic volume, and the rise in material prices, a large portion of maintenance costs are allocated to road surfaces, making road surface maintenance a crucial aspect. The content of maintenance work varies depending on the type of road surface: for low-grade gravel... For gravel pavements, the main tasks are maintaining smoothness and camber, scraping the wearing course, and replenishing materials. For low-grade asphalt pavements, such as asphalt surface treatment, the main tasks are filling potholes, covering, and remixing or repaving loose materials. For high-grade pavements, such as asphalt concrete pavements, the main tasks are excavating and filling potholes and cracks, applying surface sealing layers, and implementing anti-skid measures. For cement concrete pavements, the main tasks are filling joints, filling hollowed-out areas under slabs, and replacing some slabs. Currently, the repair and filling of highway cracks involves injecting molten asphalt into the cracks, so that the cracks are repaired after the asphalt cools and solidifies.

[0003] Most existing crack filling devices involve mounting a bucket filled with asphalt on a mobile cart and using a nozzle to spray the asphalt into the crack to fill it and repair it. However, because the crack usually contains dust or impurities, the asphalt cannot flow and form quickly and completely within the crack, resulting in poor crack repair and reduced road maintenance efficiency. Summary of the Invention

[0004] In view of the above situation and to overcome the defects of the prior art, the present invention provides a crack filling device for the maintenance of national and provincial highways, which effectively solves the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a crack filling device for the maintenance of national and provincial highways, comprising a mobile platform, wherein a crack filling and pouring component is provided on the mobile platform, the crack filling and pouring component being used to fill and repair cracks on the road surface;

[0006] The filling and pouring assembly includes vertical blocks symmetrically arranged on both sides of the mobile platform, with symmetrically mounted moving wheels on the vertical blocks; the mobile platform is provided with handles and mounting brackets, with several mounting brackets connected together to the filling barrel, and the filling barrel is provided with a filling hose, which is connected to a spray pipe; the mobile platform is provided with a forward and reverse air generation mechanism, which is used to clean the dust and debris accumulated in the crack.

[0007] Preferably, the forward and reverse air-generating mechanism includes a mounting plate disposed on a mobile platform, a rotary motor fixedly mounted on the mounting plate, a rotary connecting block provided on the output end of the rotary motor being connected to a rotary connecting groove on a rotary gear; a rotary sweeping unit is connected to the rotary gear; a rotary limiting rod is fixedly mounted on the rotary gear, the rotary limiting rod being slidably connected to a rotary slot provided on a rotary block; guide blocks are symmetrically mounted on the rotary block, the guide blocks being slidably connected to guide rods, and the two ends of the guide rods being fixedly connected to guide bases provided on the mobile platform.

[0008] Preferably, an extension rod is fixedly installed on the rotating block, and the extension rod is fixedly connected to the reciprocating horizontal block. A displacement single-output component is provided on the reciprocating horizontal block. The reciprocating horizontal block is slidably connected to the reciprocating square box. The reciprocating square box is connected to the grading pipe via a transmission hose. A transmission base is installed on the transmission hose. The transmission base is fixedly connected to a linkage base. One side of the linkage base is fixedly connected to the moving platform, and the other side is fixedly connected to the reciprocating square box. Several connecting hoses are provided on the grading pipe. The connecting hoses are connected to pressure processors. The pressure processors are provided with small-diameter nozzles. Several pressure processors are connected to a rotating shaft. Both ends of the rotating shaft are fixedly connected to a rotating base. The rotating base is fixedly connected to an auxiliary base on the moving platform. A circular groove is provided at the connection between the reciprocating square box and the transmission hose.

[0009] Preferably, the rotary leveling unit includes a rotary gear meshing with a rotary gear, a linkage shaft mounted on the rotary gear, the linkage shaft passing through the moving platform and connected to the driving pulley, the driving pulley being connected to the driven pulley via a transmission belt, a driven shaft mounted on the driven pulley, one end of the driven shaft being connected to the moving platform for transmission, and the other end being connected to a linkage cam, the linkage cam being connected to a linkage rod.

[0010] Preferably, limit blocks are symmetrically installed on the linkage rod, the limit blocks are slidably connected to the limit rod, the two ends of the limit rod are fixedly connected to the limit base plate, the two limit base plates are connected to the driving U rod, and the driving U rod is fixedly connected to the moving platform through the driving rod; a limit spring is sleeved on the limit rod, one end of the limit spring is fixedly connected to the limit base plate, and the other end is fixedly connected to the limit block.

[0011] Preferably, the shifting single-output component includes unidirectional square grooves symmetrically arranged on the reciprocating horizontal block, the unidirectional square grooves being connected to the single-output block, a unidirectional rotating shaft being installed on the single-output block, and the unidirectional rotating shaft being connected to a unidirectional rotating groove provided on the unidirectional square groove; a first spring is installed on both ends of the unidirectional rotating shaft, and the end of the first spring is connected to the unidirectional rotating groove; shifting blocks are symmetrically installed on the single-output block, and the shifting blocks are slidably connected to the shifting rotating groove provided in the unidirectional square groove.

[0012] Preferably, a displacement rack is fixedly installed on the linkage rod, the displacement rack meshes with a displacement gear, a displacement shaft is installed on the displacement gear, one end of the displacement shaft is connected to a displacement base on the linkage base, and the other end is connected to a displacement square plate. The displacement square plate is connected to a scraping brush plate through a coupling and rotating mechanism. The displacement square plate is provided with a rectangular groove, a connecting rod is fixedly installed in the rectangular groove, and a reversing unit is provided on the connecting rod.

[0013] Preferably, the reversing unit includes a cable mounted on a connecting rod, which passes around an auxiliary pulley on the reversing base and connects to a winding roller; the reversing base and the auxiliary base are connected by an auxiliary L-bar; a reversing shaft is mounted on the winding roller, which passes through the reversing base and connects to a driven bevel gear, which meshes with a driving bevel gear; a driving shaft on the driving bevel gear connects to a rotating shaft; a second spring is mounted on the reversing shaft, and the end of the second spring is connected to the reversing base.

[0014] Preferably, the coupling and connecting mechanism includes an electric telescopic rod disposed on the displacement plate, the output end of the electric telescopic rod being fixedly connected to the scraping brush plate, positioning rods being symmetrically installed on the scraping brush plate, and the positioning rods being slidably connected to the displacement plate; the electric telescopic rod is connected to a control box disposed on the displacement plate, and the control box is connected to a touch sensor sleeve disposed on the linkage rod.

[0015] Preferably, a rotating block is installed on the rotating shaft, and the rotating block is connected to the rotating ring rod. One end of the rotating ring rod is fixedly connected to the rotating base, and the other end is fixedly connected to the rotating limit plate. A rotating spring is sleeved on the rotating ring rod, and one end of the rotating spring is fixedly connected to the rotating limit plate, and the other end is fixedly connected to the rotating block.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] (1) By extending the square rod to drive the reciprocating horizontal block to move back and forth, the reciprocating horizontal block moves back and forth at a uniform speed in the reciprocating square box. The generated gas is compressed through the circular groove on the reciprocating square box and enters the graded pipe through the transmission hose. The graded pipe is provided with several open slots. Each slot is connected to the pressure processor through a connecting hose, so that all the gas entering the reciprocating square box enters the pressure processor. Through the compression conversion process in the pressure processor, it is further converted into compressed air and sprayed out through several small-diameter nozzles to work inside the crack. The small-diameter nozzles have a small diameter and are angled to the road surface, so that the sprayed gas is blown into the crack at an angle, which can blow away the garbage or dust and other debris accumulated in the crack, improving the spraying effect. This allows the asphalt filled by the filling and pouring component in the crack to flow and form quickly and comprehensively in the crack, thereby improving the crack repair effect and the efficiency of road maintenance.

[0018] (2) When the displacement square plate reciprocates, the winding roller reciprocates under the action of the connecting round rod, cable and auxiliary pulley, which in turn causes the second spring spring on the adjusting shaft to be in a buffer and reset state, causing the driven bevel gear to rotate and mesh with the driving bevel gear to rotate, causing the driving shaft to rotate. The driving shaft and the rotating shaft rotate, thereby causing several small-diameter nozzles on the rotating shaft to reciprocate and rotate in the forward direction, that is, in the direction away from the filling barrel, which increases the spray range of the small-diameter nozzles, reduces the limitation of the small-diameter nozzles when using them, and makes the small-diameter nozzles no longer limited to spraying at a single angle, thereby improving the effect of the air-generating mechanism when in use and improving the effect of crack repair; at the same time, when the rotating shaft reciprocates, it moves back and forth on the moving ring rod through the moving block, causing the moving spring to be in a buffer and reset state, which assists the winding roller in resetting and rotating to speed up the cable recovery; at the same time, it improves the stability of several small-diameter nozzles on the rotating shaft when in use.

[0019] (3) Start the air-blowing mechanism to clean the dust and debris accumulated in the crack through the small-diameter nozzle. The nozzle is set opposite to the small-diameter nozzle and is located at the tail of the moving platform. When the nozzle moves to the crack, the crack and its surroundings have been cleaned by the small-diameter nozzle and the rotating sweeping unit. Then, by operating the nozzle, the asphalt in the filling barrel enters the nozzle through the filling hose. The nozzle is aimed at the crack, so that the asphalt flows into the crack, thereby completing the crack repair operation and improving the efficiency of road maintenance.

[0020] (4) When the linkage cam contacts the linkage rod, the linkage rod moves at the upper limit of the limit rod through the limit block, and the limit spring is in a buffer state; when the linkage cam no longer contacts the linkage rod, the linkage rod is reset by the reset of the limit spring, so that the linkage rod is in a reciprocating state, which in turn causes the displacement rack to reciprocate; when the displacement rack moves forward, it meshes with the two displacement gears and rotates, which drives the displacement square plate to rotate through the displacement shaft, thereby driving the scraping brush plate to rotate, so that the two scraping brush plates move relative to each other. When the displacement rack resets and moves, it causes the two scraping brush plates to move relative to each other. The scraping brushes move towards each other; as described above, the two scraping brushes reciprocate and move towards each other, allowing them to clean dust and other debris around the crack to both sides. Simultaneously, debris generated by the air-generating mechanism is also cleaned to both sides, preventing this dust and debris from affecting the filling and repairing operation of the crack filling component. This improves the crack repair effect, reduces the limitations of the device's use, and allows asphalt to flow and form fully and quickly within the crack, avoiding interference from road debris and thus improving road maintenance efficiency.

[0021] (5) When the linkage cam on the rotating sweeping unit contacts the linkage rod, it will first contact the touch sensor sleeve on the linkage rod. The touch sensor sleeve will send a contact signal to the control box, indicating that the two scraping brushes are in a state of relative movement. At this time, the control box will send a start signal to the electric telescopic rod, so that the output end of the electric telescopic rod drives the scraping brush to move down. The scraping brush moves within the displacement square plate through the positioning rod, which improves the stability of the scraping brush when it moves. When the scraping brush contacts the ground, the electric drive stops. The telescopic rod keeps the scraping brush at its current height. As the rotating sweeping unit drives the scraping brush to rotate relative to the ground, it clears dust and other debris from the road surface to both sides. When the linkage cam no longer contacts the touch sensor sleeve, the control box receives a feedback signal. This signal controls the electric telescopic rod to reset and move, causing the scraping brush to reset and no longer contact the ground. This prevents the scraping brush from sweeping dust and other debris from the road surface to the periphery or inside the crack when rotating in opposite directions, reducing the limitations of the device in use and thus improving the crack repair effect.

[0022] (6) The reciprocating horizontal block moves inside the reciprocating square box, creating a negative pressure inside the box. Atmospheric pressure pushes open the single-outlet block, causing its one-way rotating shaft to rotate in the one-way groove, thus putting the first spring in a buffered state. The shifting block also moves within the shifting groove. At the same time, the same component (not shown in the figure) is also provided at the circular groove on the reciprocating square box. At this time, the component at the circular groove blocks the groove through another single-outlet block under the action of suction, thus preventing air from flowing out. Air is then injected into the reciprocating square box through the one-way groove. When the extended square rod pushes the reciprocating horizontal block to move away from the filling barrel, high pressure is formed inside the reciprocating box, causing the first spring to reset and drive the single-outlet block to reset and move. The displacement block on the outlet block is limited by the displacement groove and cannot rotate, thus the single outlet block closes the unidirectional groove. At the same time, the gas pushes out of the single outlet block on the component (not shown in the figure) at the circular groove, so that the circular groove is in an open state. The gas enters the small diameter nozzle through the transmission hose. Repeating the above operation ensures that the air generation mechanism can only output air in one direction and cannot generate suction in the opposite direction. This avoids the suction caused by operational errors, which may cause dust and other debris to block the outlet of the small diameter nozzle, reducing the limitations of the device in use and extending the service life of the device. It also ensures that the airflow ejected from the small diameter nozzle is uniform, improving the stability of the device in use and thus improving the effect of crack repair. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0024] In the attached diagram:

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the filling gap assembly structure of the present invention.

[0027] Figure 3 This is a schematic diagram of the touch sensor sleeve structure of the present invention.

[0028] Figure 4 This is a schematic diagram of the reciprocating horizontal block structure of the present invention.

[0029] Figure 5 This is a schematic diagram of the scraping brush structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the winding roller structure of the present invention.

[0031] Figure 7 This is a schematic diagram of the single-outlet block structure of the present invention.

[0032] Figure 8 This is a schematic diagram of the hierarchical pipeline structure of the present invention.

[0033] Figure 9 This is a schematic diagram of the rotating block structure of the present invention.

[0034] In the diagram: 1. Moving platform; 2. Vertical block; 3. Casters; 4. Handle; 5. Mounting clamp; 6. Filling barrel; 7. Filling hose; 8. Nozzle; 9. Mounting plate; 10. Rotary motor; 11. Rotary gear; 12. Rotation limit bar; 13. Rotation block; 14. Rotation slot; 15. Guide block; 16. Guide rod; 17. Guide base; 18. Extension rod; 19. Reciprocating horizontal block; 20. Reciprocating box; 21. Grading pipe 22. Transmission hose; 23. Transmission base; 24. Linkage base; 25. Connecting hose; 26. Pressure processor; 27. Small-diameter nozzle; 28. Rotating shaft; 29. ​​Rotating base; 30. Auxiliary base; 31. Rotating gear; 32. Linkage shaft; 33. Driving pulley; 34. Transmission belt; 35. Driven pulley; 36. Driven shaft; 37. Linkage cam; 38. Linkage rod; 39. Limit block; 40. Limit rod; 41. Limit 42. Engaging U-shaped rod; 43. Engaging lateral rod; 44. Limiting spring; 45. One-way square slot; 46. One-way square block; 47. One-way rotating shaft; 48. One-way rotating slot; 49. First spring; 50. Displacement block; 51. Displacement slot; 52. Displacement rack; 53. Displacement gear; 54. Displacement rotating shaft; 55. Displacement base; 56. Displacement square plate; 57. Scraping brush; 58. Rectangular square slot; 59. Connecting round rod; 60. Cable ; 61. Adjusting base; 62. Auxiliary pulley; 63. Winding roller; 64. Auxiliary L-rod; 65. Adjusting shaft; 66. Driven bevel gear; 67. Driving bevel gear; 68. Driving shaft; 69. Second spring; 70. Electric telescopic rod; 71. Positioning rod; 72. Control box; 73. Touch sensor sleeve; 74. Agitator block; 75. Agitator ring rod; 76. Agitator base; 77. Agitator limit plate; 78. Agitator spring; 79. Circular groove. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Implementation examples, by Figures 1 to 9The present invention includes a mobile platform 1, on which a crack filling and plating assembly is provided for filling and repairing cracks on the road surface; the crack filling and plating assembly includes vertical blocks 2 symmetrically arranged on both sides of the mobile platform 1, and moving wheels 3 are symmetrically installed on the vertical blocks 2; the mobile platform 1 is provided with handles 4 and mounting brackets 5, and several mounting brackets 5 are connected to a filling barrel 6, which is provided with a filling hose 7, which is connected to a spray pipe 8; the mobile platform 1 is provided with a reciprocating air generation mechanism, which is used to clean the dust and debris accumulated in the cracks.

[0037] The mobile platform 1 is moved to the front of the crack that needs repair via the moving wheels 3. By activating the air-blowing mechanism, the small-diameter nozzle 27 cleans the dust and debris accumulated in the crack. The nozzle 8 is positioned opposite to the small-diameter nozzle 27 and is located at the rear of the mobile platform 1. When the nozzle 8 moves to the crack, the small-diameter nozzle 27 and the rotating sweeping unit have already cleaned the inside and surrounding area of ​​the crack. Then, by operating the nozzle 8, the asphalt in the filling barrel 6 enters the nozzle 8 through the filling hose 7. The nozzle 8 is aimed at the crack, allowing the asphalt to flow into the crack, thus completing the crack repair operation and improving the efficiency of road maintenance.

[0038] The reciprocating air-producing mechanism of this embodiment includes a mounting plate 9 disposed on a mobile platform 1. A rotary motor 10 is fixedly mounted on the mounting plate 9. A rotary connecting block provided on the output end of the rotary motor 10 is connected to a rotary connecting groove on a rotary gear 11. A rotary sweeping unit is connected to the rotary gear 11. A rotary limiting rod 12 is fixedly mounted on the rotary gear 11. The rotary limiting rod 12 is slidably connected to a rotary slot 14 provided on a rotary block 13. Guide blocks 15 are symmetrically mounted on the rotary block 13. The guide blocks 15 are slidably connected to guide rods 16. Both ends of the guide rods 16 are fixedly connected to guide bases 17 provided on the mobile platform 1. An extension rod 18 is fixedly mounted on the rotary block 13. The extension rod 18 is fixedly connected to a reciprocating horizontal block 19. A shifting single-output component is provided on the reciprocating horizontal block 19. The reciprocating horizontal block 19 is slidably connected to the reciprocating square box 20. The reciprocating square box 20 is connected to the grading pipe 21 via a transmission hose 22. A transmission base 23 is installed on the transmission hose 22. The transmission base 23 is fixedly connected to the linkage base 24. One side of the linkage base 24 is fixedly connected to the moving platform 1, and the other side is fixedly connected to the reciprocating square box 20. The grading pipe 21 is provided with several connecting hoses 25, which are connected to pressure processors 26. The pressure processors 26 are provided with small-diameter nozzles 27. Several pressure processors 26 are connected to a rotating shaft 28. Both ends of the rotating shaft 28 are fixedly connected to a rotating base 29. The rotating base 29 is fixedly connected to an auxiliary base 30 provided on the moving platform 1. A circular groove 79 is provided at the connection between the reciprocating square box 20 and the transmission hose 22.

[0039] When the device is needed to fill and repair cracks in the road surface, the mobile platform 1 is moved to the front of the crack. The rotary motor 10 is started, causing the rotary connecting block at its output end to drive the rotary gear 11 through the rotary connecting groove. The rotary gear 11 is limited in the rotary slot 14 by the rotary limiting rod 12, causing the rotary block 13 to move at its limit on the guide rod 16 through the guide block 15. This, in turn, drives the reciprocating horizontal block 19 to move back and forth through the extension rod 18. The reciprocating horizontal block 19 moves back and forth at a uniform speed within the reciprocating box 20. The generated gas is compressed through the circular groove 79 on the reciprocating box 20 and enters the grading pipe 21 through the transmission hose 22. The grading pipe 21 has several open slots, each connected to a connecting hose 25. The pressure processor 26 is connected, allowing all the gas entering the reciprocating box 20 to enter the pressure processor 26. Through compression and conversion within the pressure processor 26, the gas is further converted into compressed air, which is then sprayed out through several small-diameter nozzles 27 to work within the cracks. The small-diameter nozzles 27 have a small diameter and are angled relative to the road surface, allowing the sprayed gas to be blown into the cracks at an angle, thus dispersing accumulated debris such as garbage or dust, improving the spraying effect. This allows the asphalt filling component to quickly and comprehensively flow and form within the cracks, improving the crack repair effect and increasing the efficiency of road maintenance.

[0040] The rotary leveling unit of this embodiment includes a rotary gear 31 meshing with a rotary gear 11. A linkage shaft 32 is mounted on the rotary gear 31. The linkage shaft 32 passes through the moving platform 1 and is connected to a drive pulley 33. The drive pulley 33 is connected to a driven pulley 35 via a transmission belt 34. A driven shaft 36 is mounted on the driven pulley 35. One end of the driven shaft 36 is connected to the moving platform 1, and the other end is connected to a linkage cam 37. The linkage cam 37 is connected to a linkage rod 38. Limiting blocks 39 are symmetrically mounted on the linkage rod 38. The limiting blocks 39 are slidably connected to a limiting rod 40. Both ends of the limiting rod 40 are fixedly connected to limiting base plates 41. The two limiting base plates 41 are connected to a driving U-rod 42. The moving platform 1 is fixedly connected to the moving platform 1 via a linkage rod 43; a limiting spring 44 is sleeved on the limiting rod 40, one end of the limiting spring 44 is fixedly connected to the limiting base plate 41, and the other end is fixedly connected to the limiting block 39; a displacement rack 52 is fixedly installed on the linkage rod 38, the displacement rack 52 meshes with the displacement gear 53, a displacement shaft 54 ​​is installed on the displacement gear 53, one end of the displacement shaft 54 ​​is connected to the displacement base 55 on the linkage base 24, and the other end is connected to the displacement square plate 56, the displacement square plate 56 is connected to the scraping brush plate 57 through a coupling and rotating mechanism; a rectangular groove 58 is provided on the displacement square plate 56, a connecting rod 59 is fixedly installed in the rectangular groove 58, and a reversing unit is provided on the connecting rod 59.

[0041] When the rotating gear 11 rotates, it meshes with the rotating gear 31, causing the driving pulley 33 on the linkage shaft 32 to rotate. This drives the driven pulley 35 to rotate via the transmission belt 34, causing the linkage cam 37 on the driven shaft 36 to rotate. When the linkage cam 37 contacts the linkage rod 38, the linkage rod 38 moves to its upper limit on the limit rod 40 via the limit block 39, and the limit spring 44 is in a buffered state. When the linkage cam 37 no longer contacts the linkage rod 38, the limit spring 44 resets the linkage rod 38, causing it to reciprocate, which in turn causes the displacement rack 52 to reciprocate. When the displacement rack 52 moves forward, it meshes with two displacement gears 53, causing them to rotate via the displacement shaft 54. The square plate 56 rotates, thereby driving the scraping brush 57 to rotate, causing the two scraping brushes 57 to move relative to each other. When the displacement rack 52 resets and moves, the two scraping brushes 57 move towards each other. Through the above description, the two scraping brushes 57 reciprocate relative and towards each other, allowing the scraping brushes 57 to clean the dust and other debris around the crack to both sides. At the same time, the debris generated by the air-generating mechanism is also cleaned to both sides, preventing the dust and other debris from affecting the filling and repairing operation of the crack filling component. This improves the repair effect of the crack, reduces the limitations of the device during use, and allows the asphalt to flow and form fully and quickly within the crack, avoiding the trouble caused by debris on the road surface, thereby improving the efficiency of road maintenance.

[0042] The shifting single-output component of this embodiment includes a unidirectional square groove 45 symmetrically arranged on the reciprocating horizontal block 19. The unidirectional square groove 45 is connected to the single-output block 46. A unidirectional rotating shaft 47 is installed on the single-output block 46. The unidirectional rotating shaft 47 is connected to the unidirectional rotating groove 48 provided on the unidirectional square groove 45. A first spring spring 49 is installed on both ends of the unidirectional rotating shaft 47. The end of the first spring spring 49 is connected to the unidirectional rotating groove 48. A shifting block 50 is symmetrically installed on the single-output block 46. The shifting block 50 is slidably connected to the shifting groove 51 provided in the unidirectional square groove 45.

[0043] When the extended square rod 18 on the air-producing mechanism drives the reciprocating horizontal block 19 to reset and move towards the direction closer to the filling barrel 6, the reciprocating horizontal block 19 moves inside the reciprocating square box 20, creating a negative pressure inside the reciprocating box 20. Atmospheric pressure pushes open the single-outlet block 46, causing its one-way rotating shaft 47 to rotate within the one-way rotating groove 48, putting the first spring spring 49 in a buffered state. The shifting block 50 also moves within the shifting groove 51. At the same time, the same component (not shown in the figure) is also provided at the circular groove 79 on the reciprocating square box 20. At this time, the component at the circular groove 79, under the action of suction, blocks the circular groove 79 through another single-outlet block 46, thereby preventing air from flowing out. Thus, air is injected into the reciprocating box 20 through the one-way square groove 45. At this time, when the extended square rod 18 pushes the reciprocating horizontal block 19 to move away from the filling barrel 6, the reciprocating box 20 forms a negative pressure. High pressure is applied, causing the first spring 49 to reset and move the single-outlet block 46 back to its original position. The shifting block 50 on the single-outlet block 46 is limited by the shifting groove 51 and cannot rotate, thus closing the unidirectional groove 45. At the same time, the gas pushes out of the single-outlet block 46 on the component (not shown in the figure) at the circular groove 79, making the circular groove 79 open. The gas enters the small-diameter nozzle 27 through the transmission hose 22. Repeating the above operation ensures that the air-generating mechanism can only output air in one direction and cannot generate suction in the opposite direction. This avoids the suction caused by operational errors, which could block the outlet of the small-diameter nozzle 27 with dust and other debris. This reduces the limitations of the device during use and extends its service life. The airflow from the small-diameter nozzle 27 is uniform, improving the stability of the device during use and thus improving the effect of crack repair.

[0044] The reversing unit of this embodiment includes a cable 60 mounted on a connecting rod 59. The cable 60 passes around an auxiliary pulley 62 on a reversing base 61 and connects to a winding roller 63. The reversing base 61 and the auxiliary base 30 are connected by an auxiliary L-rod 64. A reversing shaft 65 is mounted on the winding roller 63. The reversing shaft 65 passes through the reversing base 61 and connects to a driven bevel gear 66. The driven bevel gear 66 meshes with a driving bevel gear 67. A driving shaft 68 mounted on the driving bevel gear 67 is connected to a rotating shaft 28. A second spring 69 is provided on the directional shaft 65, and the end of the second spring 69 is connected to the directional base 61; an agitator block 74 is installed on the rotating shaft 28, and the agitator block 74 is connected to the agitator ring rod 75. One end of the agitator ring rod 75 is fixedly connected to the agitator base 76 provided on the rotating base 29, and the other end is fixedly connected to the agitator limit plate 77; an agitator spring 78 is sleeved on the agitator ring rod 75, one end of the agitator spring 78 is fixedly connected to the agitator limit plate 77, and the other end is fixedly connected to the agitator block 74.

[0045] When the displacement plate 56 reciprocates, the connecting rod 59, cable 60, and auxiliary pulley 62 cause the winding roller 63 to reciprocate. This, in turn, causes the second spring spring 69 on the adjusting shaft 65 to continuously be in a buffering and resetting state, causing the driven bevel gear 66 to rotate and mesh with the driving bevel gear 67, which in turn causes the driving shaft 68 to rotate. The driving shaft 68 and the rotating shaft 28 rotate, causing the several small-diameter nozzles 27 on the rotating shaft 28 to reciprocate. The direction of rotation is forward, that is, away from the filling barrel 6, thus lifting... The spray range of the small-diameter nozzle 27 has been increased, reducing the limitations of its use. This allows the small-diameter nozzle 27 to spray from a single angle, thereby improving the effectiveness of the air-generating mechanism and the crack repair. At the same time, the rotating shaft 28 moves back and forth on the moving ring rod 75 via the moving block 74, keeping the moving spring 78 in a buffering and resetting state, which helps the winding roller 63 to retract the cable 60 at a faster speed when it is resetting and rotating. This also improves the stability of the small-diameter nozzles 27 on the rotating shaft 28 during use.

[0046] The coupling and connecting mechanism of this embodiment includes an electric telescopic rod 70 disposed on the displacement square plate 56. The output end of the electric telescopic rod 70 is fixedly connected to the scraping brush plate 57. Positioning rods 71 ​​are symmetrically installed on the scraping brush plate 57 and are slidably connected to the displacement square plate 56. The electric telescopic rod 70 is connected to the control box 72 disposed on the displacement square plate 56. The control box 72 is connected to the touch sensing sleeve 73 disposed on the linkage round rod 38.

[0047] When the linkage cam 37 on the rotating sweeping unit contacts the linkage rod 38, it first contacts the touch sensor sleeve 73 on the linkage rod 38. The touch sensor sleeve 73 sends a contact signal to the control box 72, indicating that the two scraping brushes 57 are in a state of relative movement. At this time, the control box 72 sends a start signal to the electric telescopic rod 70, causing the output end of the electric telescopic rod 70 to drive the scraping brushes 57 to move downward. The scraping brushes 57 are limited in movement within the displacement square plate 56 by the positioning rod 71, which improves the stability of the scraping brushes 57 when moving. The scraping brushes 57 stop when they contact the ground. The drive of the electric telescopic rod 70 is stopped, keeping the scraping brush 57 at its current height. As the rotating sweeping unit drives the scraping brush 57 to rotate relative to each other, it cleans dust and other debris from the road surface to both sides. When the linkage cam 37 no longer contacts the touch sensor sleeve 73, the control box 72 receives a feedback signal. This signal controls the electric telescopic rod 70 to reset and move, causing the scraping brush 57 to reset and move, so that it no longer contacts the ground. This prevents the scraping brush 57 from sweeping dust and other debris from the road surface to the periphery or inside the crack when rotating in opposite directions, reducing the limitations of the device in use and thus improving the effect of crack repair.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A crack filling device for the maintenance of national and provincial highways, characterized in that: Includes a mobile platform (1), on which a filling and pouring component is provided, which is used to fill and repair cracks on the road surface; The filling and pouring assembly includes vertical blocks (2) symmetrically arranged on both sides of the mobile platform (1), and symmetrically installed moving wheels (3) on the vertical blocks (2); the mobile platform (1) is provided with handles (4) and mounting brackets (5), several mounting brackets (5) are connected to the filling barrel (6), the filling barrel (6) is provided with a filling hose (7), and the filling hose (7) is connected to the spray pipe (8); the mobile platform (1) is provided with a forward and reverse air generation mechanism, which is used to clean the dust and debris accumulated in the crack; The forward and reverse air production mechanism includes a mounting plate (9) set on the mobile platform (1), a rotary motor (10) fixedly mounted on the mounting plate (9), a rotary connecting block provided on the output end of the rotary motor (10) and a rotary connecting groove on the rotary gear (11) are connected; a rotary sweeping unit is connected to the rotary gear (11); a rotary limiting rod (12) is fixedly mounted on the rotary gear (11), and the rotary limiting rod (12) is slidably connected to a rotary slot (14) provided on the rotary block (13); guide blocks (15) are symmetrically mounted on the rotary block (13), and guide blocks (15) are slidably connected to guide rods (16), and both ends of the guide rods (16) are fixedly connected to guide bases (17) provided on the mobile platform (1); An extension rod (18) is fixedly installed on the rotating block (13). The extension rod (18) is fixedly connected to the reciprocating horizontal block (19). A displacement single-output component is provided on the reciprocating horizontal block (19). The reciprocating horizontal block (19) is slidably connected to the reciprocating box (20). The reciprocating box (20) is connected to the graded pipeline (21) through a transmission hose (22). A transmission base (23) is installed on the transmission hose (22). The transmission base (23) is fixedly connected to the linkage base (24). One side of the linkage base (24) is fixedly connected to the moving platform (1), and the other side is fixedly connected to... The reciprocating box (20) is fixedly connected; the graded pipe (21) is provided with several connecting hoses (25), the connecting hoses (25) are connected to the pressure processor (26), the pressure processor (26) is provided with a small diameter nozzle (27); several pressure processors (26) are connected to a rotating shaft (28), the two ends of the rotating shaft (28) are fixedly connected to the rotating base (29), the rotating base (29) is fixedly connected to the auxiliary base (30) provided on the moving platform (1); the reciprocating box (20) and the transmission hose (22) are provided with a circular groove (79).

2. The crack filling device for national and provincial highway maintenance according to claim 1, characterized in that: The rotary sweeping unit includes a rotary gear (31) meshing with a rotary gear (11). A linkage shaft (32) is mounted on the rotary gear (31). The linkage shaft (32) passes through the moving platform (1) and is connected to the active pulley (33). The active pulley (33) is connected to the driven pulley (35) via a transmission belt (34). A driven shaft (36) is mounted on the driven pulley (35). One end of the driven shaft (36) is connected to the moving platform (1) for transmission, and the other end is connected to the linkage cam (37). The linkage cam (37) is connected to the linkage rod (38).

3. A crack filling device for national and provincial highway maintenance according to claim 2, characterized in that: Limiting blocks (39) are symmetrically installed on the linkage rod (38). The limiting blocks (39) are slidably connected to the limiting rod (40). The two ends of the limiting rod (40) are fixedly connected to the limiting base plate (41). The two limiting base plates (41) are connected to the driving U rod (42). The driving U rod (42) and the moving platform (1) are fixedly connected through the driving rod (43). A limiting spring (44) is sleeved on the limiting rod (40). One end of the limiting spring (44) is fixedly connected to the limiting base plate (41), and the other end is fixedly connected to the limiting block (39).

4. A crack filling device for national and provincial highway maintenance according to claim 1, characterized in that: The shifting single-output component includes a unidirectional square groove (45) symmetrically arranged on the reciprocating horizontal block (19), the unidirectional square groove (45) being connected to the single-output block (46), a unidirectional rotating shaft (47) being installed on the single-output block (46), and the unidirectional rotating shaft (47) being connected to the unidirectional rotating groove (48) provided on the unidirectional square groove (45); a first spring spring (49) is installed on both ends of the unidirectional rotating shaft (47), and the end of the first spring spring (49) is connected to the unidirectional rotating groove (48); a shifting block (50) is symmetrically installed on the single-output block (46), and the shifting block (50) is slidably connected to the shifting groove (51) provided in the unidirectional square groove (45).

5. A crack filling device for national and provincial highway maintenance according to claim 3, characterized in that: A displacement rack (52) is fixedly installed on the linkage rod (38). The displacement rack (52) meshes with the displacement gear (53). A displacement shaft (54) is installed on the displacement gear (53). One end of the displacement shaft (54) is connected to the displacement base (55) provided on the linkage base (24) for transmission, and the other end is connected to the displacement square plate (56). The displacement square plate (56) is connected to the scraping brush plate (57) through a coupling and rotating mechanism. A rectangular groove (58) is provided on the displacement square plate (56). A connecting rod (59) is fixedly installed in the rectangular groove (58). A reversing unit is provided on the connecting rod (59).

6. A crack filling device for national and provincial highway maintenance according to claim 5, characterized in that: The reversing unit includes a cable (60) mounted on a connecting rod (59), which passes around an auxiliary pulley (62) on a reversing base (61) and is connected to a winding roller (63). The reversing base (61) and the auxiliary base (30) are connected by an auxiliary L-rod (64). A reversing shaft (65) is mounted on the winding roller (63), which passes through the reversing base (61) and is connected to a driven bevel gear (66). The driven bevel gear (66) meshes with a driving bevel gear (67), and a driving shaft (68) on the driving bevel gear (67) is connected to a rotating shaft (28). A second spring (69) is mounted on the reversing shaft (65), and the end of the second spring (69) is connected to the reversing base (61).

7. A crack filling device for national and provincial highway maintenance according to claim 5, characterized in that: The coupling and connecting mechanism includes an electric telescopic rod (70) set on the displacement square plate (56). The output end of the electric telescopic rod (70) is fixedly connected to the scraping brush plate (57). Positioning rods (71) are symmetrically installed on the scraping brush plate (57). The positioning rods (71) are slidably connected to the displacement square plate (56). The electric telescopic rod (70) is connected to the control box (72) provided on the displacement square plate (56). The control box (72) is connected to the touch sensor sleeve (73) provided on the linkage round rod (38).

8. A crack filling device for national and provincial highway maintenance according to claim 6, characterized in that: An agitator block (74) is installed on the rotating shaft (28). The agitator block (74) is connected to the agitator ring rod (75). One end of the agitator ring rod (75) is fixedly connected to the agitator base (76) provided on the rotating base (29), and the other end is fixedly connected to the agitator limit plate (77). An agitator spring (78) is sleeved on the agitator ring rod (75). One end of the agitator spring (78) is fixedly connected to the agitator limit plate (77), and the other end is fixedly connected to the agitator block (74).

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