Mechanical crack expansion and crack cleaning integrated tool for asphalt pavement

Abstract

This utility model relates to the field of crack widening and cleaning, specifically a mechanical integrated tool for widening and cleaning cracks in asphalt pavement. It includes a housing with a through-groove on its upper surface, and further includes an adjustment unit slidably disposed within the installation groove, which moves to adjust the positions of the widening and cleaning operations; and a widening unit located within the adjustment unit. In this utility model, the housing is pushed forward by a handle, and the positioning block of the guide wheel can precisely engage in the crack, providing guidance and positioning. The cleaning brush wheel is preferably made of high-strength nylon bristles. A motor is fixedly installed inside the housing, driving the cleaning brush wheel to rotate at high speed, thereby sweeping out the debris generated during crack widening and existing debris within the crack. Under the throwing force of the cleaning brush wheel and the guidance of the dust collection hood, most of the swept debris is collected in the storage tank, avoiding dust and secondary pollution. This achieves immediate and effective collection of debris, essentially eliminating dust emissions and protecting the environment and worker health.

Description

Technical Field

[0001] This utility model relates to the field of crack widening and cleaning, and in particular to a mechanical crack widening and cleaning tool for asphalt pavement. Background Technology

[0002] Crack widening and cleaning of asphalt pavement cracks are crucial preliminary steps in road maintenance, directly determining the quality, durability, and overall repair effect of subsequent crack sealing treatment. Natural cracks are typically narrow and irregular in depth. Directly injecting sealant results in insufficient filling, a small bonding area, and low tensile strength. Widening the crack creates a standard V-shaped groove, significantly increasing the contact area between the sealant and the groove wall. Irregular crack edges often have sharp corners and burrs, easily leading to stress concentration. Widening the crack creates a smooth, transitional groove structure, allowing stress under vehicle loads to be evenly distributed along the groove wall.

[0003] Traditional crack widening and cleaning methods rely on manual handling, which is complex and inefficient. Therefore, this paper proposes a mechanical crack widening and cleaning tool that integrates these two processes. Utility Model Content

[0004] The main purpose of this utility model is to provide a mechanical crack widening and cleaning tool for asphalt pavement, so as to solve the problem that traditional crack widening and cleaning relies on manual processing, which leads to complicated operation and low efficiency.

[0005] To achieve the above objectives, according to one aspect of the present invention, a mechanical crack widening and cleaning tool for asphalt pavement cracks is provided, comprising a housing, wherein an installation groove is provided through the upper surface of the housing, and further comprising: an adjustment part, which is slidably disposed in the installation groove, and the adjustment part moves to adjust the crack widening and cleaning positions; and a crack widening part, which is disposed in the adjustment part, and the crack widening part widens and cleans the crack and collects debris in the crack.

[0006] Furthermore, two drive wheels are symmetrically and rotatably mounted on one end of the housing, and a guide wheel is rotatably mounted on the other end of the housing, with a positioning block fixedly mounted on the side wall of the guide wheel.

[0007] Furthermore, a handle is fixedly installed on one side of the housing.

[0008] Furthermore, the adjustment part includes a mounting block, two limiting blocks are symmetrically fixedly mounted on the side wall of the mounting block, and two slide rail grooves are symmetrically opened on the side wall of the mounting groove. The limiting blocks are slidably mounted in the slide rail grooves, and the limiting blocks are T-shaped structures adapted to the slide rail grooves.

[0009] Furthermore, a No. 1 cylinder is fixedly installed on one side of the housing. One end of the piston rod of the No. 1 cylinder passes through the housing and is located in the mounting groove. The other end of the piston rod of the No. 1 cylinder is fixedly installed on one side of the mounting block.

[0010] Furthermore, an adjustment groove is provided on the lower surface of the mounting block, and a second cylinder is fixedly installed on the upper surface of the mounting block, with the piston rod of the second cylinder passing through the mounting block and located in the adjustment groove.

[0011] Furthermore, the expansion joint includes a support block, which is slidably mounted in the adjustment groove, and one end of the piston rod of the second cylinder is fixedly mounted on the upper surface of the support block.

[0012] Furthermore, a slit widening plow blade is fixedly installed on one side of the lower surface of the support block, and the slit widening plow blade has a V-shaped structure.

[0013] Furthermore, a cleaning brush wheel is rotatably mounted on the center of the lower surface of the support block.

[0014] Furthermore, a storage groove is provided on the lower surface of the support block, and a dust collection hood is fixedly installed on one side of the lower surface of the support block. The dust collection hood has a V-shaped structure and a guide groove is provided inside the dust collection hood, which is connected to the storage groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention uses a handle to propel the housing forward. The positioning block of the guide wheel can precisely engage in the crack, providing guidance and positioning to prevent the tool from deviating. The drive wheel is a rough-surfaced roller, providing propulsion and stability, ensuring the tool moves stably in a straight line along the crack direction. The first cylinder pushes the adjustment part to slide along the slide rail groove, thereby driving the crack widening part to make horizontal fine adjustments. The tip of the crack widening plow blade is always aligned with the center of the crack. One end of the piston rod of the second cylinder is fixedly installed on the upper surface of the support block, adjusting the vertical height of the crack widening part to control the depth of the groove. The crack widening plow blade has a V-shaped structure and a widening plow blade edge... The brush head is inlaid with carbide to enhance wear resistance. The cleaning brush wheel is made of high-strength nylon bristles. A motor is fixedly installed inside the housing, and the motor output shaft is fixedly connected to the cleaning brush wheel. The motor provides power for the rotation of the cleaning brush wheel, which drives the cleaning brush wheel to rotate at high speed, thereby sweeping out the debris generated during the widening of the gap and the original debris in the gap. Under the throwing force of the cleaning brush wheel and the guidance of the dust collection hood, most of the debris is collected in the storage tank, avoiding dust and secondary pollution. This achieves immediate and effective collection of debris, basically eliminating dust flying and protecting the environment and workers' health. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the integrated tool in a preferred embodiment of the present invention; Figure 2 This is a cross-sectional view of the integrated tool in a preferred embodiment of the present invention; Figure 3 This is a schematic cross-sectional view of the shell structure in a preferred embodiment of the present invention; Figure 4This is a schematic diagram of the adjustment part structure in a preferred embodiment of the present invention; Figure 5 This is a cross-sectional view of the adjustment part in a preferred embodiment of the present invention; Figure 6 This is a cross-sectional view of the enlarged joint in a preferred embodiment of the present invention.

[0017] Figure label: Housing; 11. Mounting slot; 12. Handle; 13. Drive wheel; 14. Guide wheel; 15. Cylinder No. 1; 111. Slide rail groove; 141. Positioning block; Adjustment section; 21. Mounting block; 22. Cylinder No. 2; 23. Limiting block; 221. Adjustment groove; 31. Joint widening section; 32. Support block; 33. Joint widening plow; 34. Cleaning brush wheel; 35. Dust collection hood; 36. Storage slot; 37. Guide slot. Detailed Implementation

[0018] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0019] This embodiment provides a mechanical crack widening and cleaning tool for asphalt pavement cracks, including a housing 1, with a mounting groove 11 extending through the upper surface of the housing 1. Figure 1 , Figure 2 As shown, two drive wheels 13 are symmetrically rotated and mounted on one end of the housing 1, and a guide wheel 14 is rotated and mounted on the other end of the housing 1. A positioning block 141 is fixedly mounted on the side wall of the guide wheel 14. The positioning block 141 of the guide wheel 14 can be precisely engaged in the crack to guide and position the tool and prevent it from deviating. The drive wheel 13 is a rough-surfaced roller that provides propulsion and stability to ensure that the tool can move stably in a straight line along the crack direction. A handle 12 is fixedly mounted on one side of the housing 1, and the housing 1 is pushed forward by the handle 12.

[0020] It also includes: an adjustment unit 2, which is slidably disposed within the mounting groove 11, and the adjustment unit 2 moves to adjust the position of widening and cleaning the joint; such as Figure 2 , Figure 3As shown, the adjustment part 2 includes a mounting block 21. Two limiting blocks 23 are symmetrically fixedly mounted on the side wall of the mounting block 21. Two slide rail grooves 111 are symmetrically opened on the side wall of the mounting groove 11. The limiting blocks 23 are slidably installed in the slide rail grooves 111. The limiting blocks 23 are T-shaped structures adapted to the slide rail grooves 111. A first cylinder 15 is fixedly mounted on one side of the housing 1. One end of the piston rod of the first cylinder 15 passes through the housing 1 and is located in the mounting groove 11. One end of the piston rod of the first cylinder 15 is fixedly mounted on one side of the mounting block 21. Cylinder 15 pushes the adjusting part 2 to slide along the slide rail groove 111, thereby driving the widening part 3 to make horizontal fine adjustments. The tip of the widening plow 32 is always aligned with the center of the crack. An adjusting groove 221 is opened on the lower surface of the mounting block 21, and a second cylinder 22 is fixedly installed on the upper surface of the mounting block 21. The piston rod of the second cylinder 22 passes through the mounting block 21 and is located in the adjusting groove 221. One end of the piston rod of the second cylinder 22 is fixedly installed on the upper surface of the support block 31. The second cylinder 22 adjusts the vertical height of the widening part 3 to control the depth of the groove. It also includes: a seam widening section 3, which is located within the adjusting section 2. The seam widening section 3 widens and cleans the seam and collects debris from within the seam; such as Figure 5 , Figure 6 As shown, the widening section 3 includes a support block 31, which is slidably mounted in the adjusting groove 221. A widening plow blade 32 is fixedly mounted on one side of the lower surface of the support block 31. The widening plow blade 32 has a V-shaped structure, and the cutting edge of the widening plow blade 32 is inlaid with a hard alloy blade head to enhance wear resistance. A cleaning brush wheel 33 is rotatably mounted in the middle of the lower surface of the support block 31. In this application, the cleaning brush wheel 33 is preferably made of high-strength nylon bristles. A motor is fixedly mounted inside the housing 1. The output shaft of the motor is fixedly connected to the cleaning brush wheel 33. The motor provides power for the rotation of the cleaning brush wheel 33, and the motor drives the cleaning brush wheel 33 to rotate at high speed, thereby sweeping out the debris generated during the widening process and the original debris in the gap. A storage groove 311 is opened on the lower surface of the support block 31, and a storage groove 311 is fixedly mounted on one side of the lower surface of the support block 31. The dust collection hood 34 has a V-shaped structure and a guide groove 341 inside. The guide groove 341 connects to the storage groove 311. Under the throwing force of the cleaning brush wheel 33 and the guidance of the dust collection hood 34, most of the debris swept up is collected in the storage groove 311, avoiding dust and secondary pollution. This achieves immediate and effective collection of debris, basically eliminating dust flying and protecting the environment and workers' health. The worker pushes the tool forward with the handle 12. The guide wheel 14 is guided along the crack by the positioning block 141. The V-shaped crack widening plow 32 widens the crack. The drive wheel 13 rotates and drives the housing 1 forward. The cleaning brush wheel 33 sweeps the debris into the dust collection hood 34, and the guide groove 341 guides the debris into the storage groove 311, thus completing the widening and cleaning of a section of the crack.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A mechanical crack widening and cleaning tool for asphalt pavement, comprising a housing (1), wherein an installation groove (11) is provided through the upper surface of the housing (1), characterized in that, Also includes: Adjustment part (2) is slidably disposed in the mounting groove (11). Adjustment part (2) moves to adjust the position of widening and cleaning the joint. The seam widening section (3) is located inside the adjustment section (2). The seam widening section (3) widens and cleans the seam and collects debris inside the seam.

2. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 1, characterized in that, Two drive wheels (13) are symmetrically rotated and installed at one end of the housing (1), and a guide wheel (14) is rotated and installed at the other end of the housing (1). A positioning block (141) is fixedly installed on the side wall of the guide wheel (14).

3. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 1, characterized in that, A handle (12) is fixedly installed on one side of the housing (1).

4. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 1, characterized in that, The adjustment part (2) includes a mounting block (21). Two limiting blocks (23) are symmetrically fixedly installed on the side wall of the mounting block (21). Two slide rail grooves (111) are symmetrically opened on the side wall of the mounting groove (111). The limiting blocks (23) are slidably installed in the slide rail grooves (111). The limiting blocks (23) are T-shaped structures that are adapted to the slide rail grooves (111).

5. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 1, characterized in that, A cylinder (15) is fixedly installed on one side of the housing (1). One end of the piston rod of the cylinder (15) passes through the housing (1) and is located in the mounting groove (11). One end of the piston rod of the cylinder (15) is fixedly installed on one side of the mounting block (21).

6. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 4, characterized in that, The mounting block (21) has an adjustment groove (221) on its lower surface, and a second cylinder (22) is fixedly installed on the upper surface of the mounting block (21). The piston rod of the second cylinder (22) passes through the mounting block (21) and is located in the adjustment groove (221).

7. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 4, characterized in that, The expansion joint (3) includes a support block (31), which is slidably installed in the adjustment groove (221). One end of the piston rod of the second cylinder (22) is fixedly installed on the upper surface of the support block (31).

8. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 7, characterized in that, A slit widening plow (32) is fixedly installed on one side of the lower surface of the support block (31). The slit widening plow (32) has a V-shaped structure.

9. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 7, characterized in that, A cleaning brush wheel (33) is rotatably mounted on the middle of the lower surface of the support block (31).

10. The integrated mechanical crack widening and cleaning tool for asphalt pavement cracks according to claim 7, characterized in that, The support block (31) has a storage groove (311) on its lower surface. A dust collection hood (34) is fixedly installed on one side of the lower surface of the support block (31). The dust collection hood (34) has a V-shaped structure and a guide groove (341) is provided inside the dust collection hood (34). The guide groove (341) is connected to the storage groove (311).

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