A mobile sanding device for asphalt pavement maintenance

Abstract

The utility model discloses a mobile sanding device for bituminous pavement maintenance relates to bituminous pavement maintenance technical field, including sanding cylinder, sanding cylinder upper end is equipped with sand adding mouth, sanding cylinder lower extreme is equipped with sand outlet, be equipped with sand outlet subassembly in sanding cylinder, sanding cylinder one side is equipped with folding type stabilizing component, sanding cylinder and folding type stabilizing component opposite side is equipped with cleaning component. The utility model discloses through setting folding type stabilizing component, utilizes the cooperation between fixed base, movable rod, second gyro wheel, electric telescopic link and first gyro wheel, realizes the self -stabilization of whole device, solved the original device lower extreme only is equipped with two gyro wheels, makes device unable self -stabilization, and the problem that inconveniently adds sand operation is solved, and through electric telescopic link can control movable rod and second gyro wheel fold, guarantees the flexibility of device.

Description

Technical Field

[0001] This utility model relates to the field of asphalt pavement maintenance technology, specifically a mobile sand spreading device for asphalt pavement maintenance. Background Technology

[0002] After several years of normal use, asphalt pavements begin to show signs of aging, loss of fine aggregate, and the spread of micro-cracks, while their permeability increases significantly. Water can seep into the asphalt mixture through cracks or damaged fine aggregate, and the immense dynamic water pressure generated by vehicle impacts further accelerates pavement damage. During this period, the pavement is still in relatively good condition; if not addressed promptly, it can lead to network cracking, alligator cracking, potholes, and other pavement defects. Many methods exist for addressing these defects, such as micro-surfacing and thin overlays, each with its own advantages and disadvantages. However, the most effective method at this stage is "fog seal technology," which is also very inexpensive. After fog seal, the highly fluid material can penetrate into the aggregate gaps and flow into cracks, effectively "replenishing" the pavement, restoring the adhesion of the asphalt surface, filling micro-cracks and voids, preventing surface water infiltration, maintaining pavement performance for 2-3 years, postponing more expensive maintenance projects, and improving the road's economic efficiency.

[0003] Patent document CN222251690U discloses a mobile sand spreading device for asphalt pavement maintenance. In use, the sand spreading cylinder is tilted and pushed by holding the handle, with the sand discharge port positioned above the ground crack. Pressing the start switch at the bottom of the support rod activates the motor, which drives the auger to rotate. Sand particles inside the spreading cylinder are discharged from the discharge port and fall into the ground crack. The device is compact, facilitating rapid filling and repair of ground cracks in different locations, thus improving the efficiency of crack filling and repair.

[0004] However, the above-mentioned device still has some problems in actual use. On the one hand, the device only has two rollers at the bottom, which makes the device more flexible to move, but also makes the device unable to stabilize itself and inconvenient to add sand. On the other hand, when the device spreads sand, some sand particles will be scattered on the road surface on both sides of the crack, which is not only difficult to clean, but may also cause secondary pollution to the road surface, affecting the aesthetics and usability of the road.

[0005] Based on this, a mobile sand spreading device for asphalt pavement maintenance is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this invention is to provide a mobile sand spreading device for asphalt pavement maintenance, in order to solve the problems in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A mobile sand spreading device for asphalt pavement maintenance includes a sand spreading cylinder, a sand filling port at the upper end of the sand spreading cylinder, a sand outlet at the lower end of the sand spreading cylinder, a sand discharging component inside the sand spreading cylinder, a folding stabilizing component on one side of the sand spreading cylinder, and a cleaning component on the side of the sand spreading cylinder opposite to the folding stabilizing component.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the lower end of the sand spreading cylinder is provided with two first rollers symmetrically, the upper end of the sand spreading cylinder is provided with a handrail, and the top of the sand spreading cylinder is provided with a top plate.

[0011] In one alternative: the sand discharge assembly includes a motor mounted on the upper end of the top plate, the output end of the motor having a shaft, and the lower end of the shaft having a spiral blade.

[0012] In one alternative: the foldable stabilizing component includes a fixed base disposed on one side of the sand spreading cylinder, a movable rod hinged to the lower end of the fixed base, a second roller rotatably mounted on the lower end of the movable rod, and a driving component disposed above the movable rod.

[0013] In one alternative: the drive assembly includes an electric telescopic rod, the fixed end of which is hinged to the sand-spreading cylinder, and the output end of which is hinged to the movable rod.

[0014] In one alternative: the cleaning assembly includes a gravel pump fixed to one side of the sand spreading cylinder, the input end of the gravel pump is provided with a suction pipe, the output end of the gravel pump is provided with a connecting pipe, the lower end of the suction pipe is provided with a suction head, and the lower end of the suction pipe is provided with a spacing adjustment assembly.

[0015] In one alternative: the spacing adjustment assembly includes a mounting block fixed to one side of the sand spreading cylinder, the mounting block having a groove, two sliding blocks symmetrically slidably mounted in the groove, a dual-axis motor between the sliding blocks, a screw at the output end of the dual-axis motor, and the screw threadedly connected to the sliding blocks.

[0016] In one alternative: the upper end of the connecting pipe is connected to the inside of the sand-spraying cylinder, and the lower end of the suction pipe is fixed to the sliding block.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. This utility model achieves self-stabilization of the entire device by setting up a foldable stabilizing component and utilizing the cooperation between the fixed base, movable rod, second roller, electric telescopic rod and first roller. This solves the problem that the original device only has two rollers at the bottom, which makes the device unable to stabilize itself and inconvenient for sand adding operations. At the same time, the electric telescopic rod can control the folding of the movable rod and the second roller, ensuring the flexibility of the device.

[0019] 2. This utility model, by setting up a cleaning component, utilizes the cooperation of a gravel pump, connecting pipe, suction pipe and suction head to clean the sand particles scattered on both sides of the crack. At the same time, the spacing adjustment component adjusts the spacing between the suction heads to prevent the suction heads from sucking out the sand particles filled into the crack, thus affecting the crack filling effect. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of one side of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.

[0022] Figure 3 This is a schematic diagram of the sand discharge component in this utility model.

[0023] Figure 4 This is a schematic diagram of the foldable stabilizing component in this utility model.

[0024] Figure 5 This is a schematic diagram of the cleaning component in this utility model.

[0025] Figure reference numerals: 100, Sand spreading cylinder; 101, Sand filling port; 102, Sand outlet; 103, First roller; 104, Handrail; 105, Top plate; 200, Sand discharge assembly; 201, Motor; 202, Shaft; 203, Spiral blade; 300, Folding stabilizing assembly; 301, Fixed base; 302, Movable rod; 303, Second roller; 304, Electric telescopic rod; 400, Cleaning assembly; 401, Gravel pump; 402, Suction pipe; 403, Connecting pipe; 404, Suction head; 405, Mounting block; 406, Slide groove; 407, Sliding block; 408, Dual-shaft motor; 409, Screw. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figure 1 and Figure 2As shown, the device includes a sand spreading cylinder 100, with a sand filling port 101 at the upper end and a sand outlet 102 at the lower end. A sand outlet assembly 200 is installed inside the sand spreading cylinder 100. A foldable stabilizing assembly 300 is located on one side of the sand spreading cylinder 100, and a cleaning assembly 400 is located on the opposite side of the sand spreading cylinder 100 and the foldable stabilizing assembly 300. In use, sand particles for filling cracks are added to the sand spreading cylinder 100 through the sand filling port 101. During sand filling, the foldable stabilizing assembly 300 ensures the stability of the device. After sand filling is completed, the foldable stabilizing assembly 300 is retracted, and the device is then pushed to move along the crack. Simultaneously, the sand particles inside the sand spreading cylinder 100 are sprinkled into the crack through the sand outlet assembly 200, thus filling the crack. The cleaning assembly 400 cleans up the sand particles scattered on the road surface on both sides of the crack.

[0028] In one embodiment, such as Figure 3 As shown, the sand spreading cylinder 100 has two first rollers 103 symmetrically arranged at the lower end, a handrail 104 at the upper end, and a top plate 105 at the top. When in use, hold the handrail 104 and push the device to move.

[0029] In one embodiment, such as Figure 3 As shown, the sand discharge assembly 200 includes a motor 201 mounted on the upper end of the top plate 105. The output end of the motor 201 is provided with a shaft 202, and the lower end of the shaft 202 is provided with a spiral blade 203. In use, the motor 201 drives the shaft 202 to rotate, which in turn drives the spiral blade 203 to rotate simultaneously, discharging the sand particles in the sand spreading cylinder 100 from the sand discharge port 102.

[0030] In one embodiment, such as Figure 4 As shown, the foldable stabilizing component 300 includes a fixed base 301 disposed on one side of the sand spreading cylinder 100. A movable rod 302 is hinged to the lower end of the fixed base 301. A second roller 303 is rotatably mounted on the lower end of the movable rod 302. A driving component is disposed above the movable rod 302. The driving component includes an electric telescopic rod 304. The fixed end of the electric telescopic rod 304 is hinged to the sand spreading cylinder 100, and the output end of the electric telescopic rod 304 is hinged to the movable rod 302. In use, the electric telescopic rod 304 is extended, driving the movable rod 302 to rotate around the fixed base 301 until the second roller 303 contacts the ground. Thus, the second roller 303 and the first roller 103 together achieve stable support for the device.

[0031] In one embodiment, such as Figure 5As shown, the cleaning assembly 400 includes a gravel pump 401 fixed to one side of the sand spreading cylinder 100. The gravel pump 401 has a suction pipe 402 at its input end and a connecting pipe 403 at its output end. A suction head 404 is located at the lower end of the suction pipe 402. A spacing adjustment assembly is also located at the lower end of the suction pipe 402. The spacing adjustment assembly includes a mounting block 405 fixed to one side of the sand spreading cylinder 100. A groove 406 is provided inside the mounting block 405. Two sliding blocks 407 are symmetrically slidably installed in the groove 406. A dual-axis motor 408 is located between the sliding blocks 407. The output end of the dual-shaft motor 408 is equipped with a screw 409, which is threadedly connected to the sliding block 407. The upper end of the connecting pipe 403 is connected to the inside of the sand spreading cylinder 100. The lower end of the suction pipe 402 is fixed on the sliding block 407. In use, the screw 409 is driven to rotate by the dual-shaft motor 408, so that the sliding block 407 moves laterally along the slide groove 406 with the suction pipe 402, thereby adjusting the spacing of the suction pipe 402. Then, the gravel pump 401 is started to suck the sand particles dispersed on both sides of the road surface through the suction head 404 back into the sand spreading cylinder 100.

[0032] The above embodiment discloses a mobile sand spreading device for asphalt pavement maintenance. In use, first, the electric telescopic rod 304 is extended, driving the movable rod 302 to rotate around the fixed base 301 until the second roller 303 contacts the ground. Thus, the second roller 303 and the first roller 103 together provide stable support for the device. Then, sand for filling cracks is added into the sand spreading cylinder 100 through the sand filling port 101. Next, the second roller 303 is retracted, and then, by holding the handle 104, the device is pushed along the crack. The motor 201 drives the shaft 202 to rotate, which in turn drives the spiral blade 203 to rotate, discharging the sand particles in the sand spreading cylinder 100 from the sand outlet 102 and filling the crack with sand particles. At the same time, the dual-shaft motor 408 drives the screw 409 to rotate, causing the sliding block 407 to move laterally along the slide groove 406 with the suction pipe 402, thereby adjusting the spacing of the suction pipe 402. Then, the gravel pump 401 is started to suck the sand particles dispersed on both sides of the road surface of the crack back into the sand spreading cylinder 100 through the suction head 404.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A mobile sand spreading device for asphalt pavement maintenance, comprising a sand spreading cylinder (100), wherein the upper end of the sand spreading cylinder (100) is provided with a sand filling port (101), the lower end of the sand spreading cylinder (100) is provided with a sand outlet (102), and a sand discharging assembly (200) is provided inside the sand spreading cylinder (100), characterized in that, A foldable stabilizing component (300) is provided on one side of the sand spreading cylinder (100), and a cleaning component (400) is provided on the opposite side of the sand spreading cylinder (100) and the foldable stabilizing component (300).

2. The mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that, The sand spreading cylinder (100) has two first rollers (103) symmetrically arranged at the lower end, a handrail (104) is provided at the upper end of the sand spreading cylinder (100), and a top plate (105) is provided at the top of the sand spreading cylinder (100).

3. A mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that, The sand discharge assembly (200) includes a motor (201) disposed on the upper end of the top plate (105), the output end of the motor (201) is provided with a shaft (202), and the lower end of the shaft (202) is provided with a spiral blade (203).

4. A mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that, The foldable stabilizing component (300) includes a fixed base (301) disposed on one side of the sand spreading cylinder (100), a movable rod (302) is hinged to the lower end of the fixed base (301), a second roller (303) is rotatably mounted on the lower end of the movable rod (302), and a driving component is provided above the movable rod (302).

5. A mobile sand spreading device for asphalt pavement maintenance according to claim 4, characterized in that, The drive assembly includes an electric telescopic rod (304), the fixed end of which is hinged to the sand-spreading cylinder (100), and the output end of which is hinged to the movable rod (302).

6. A mobile sand spreading device for asphalt pavement maintenance according to claim 1, characterized in that, The cleaning assembly (400) includes a gravel pump (401) fixed to one side of the sand spreading cylinder (100). The gravel pump (401) has a suction pipe (402) at its input end and a connecting pipe (403) at its output end. The suction pipe (402) has a suction head (404) at its lower end and a spacing adjustment assembly at its lower end.

7. A mobile sand spreading device for asphalt pavement maintenance according to claim 6, characterized in that, The spacing adjustment assembly includes a mounting block (405) fixed to one side of the sand spreading cylinder (100). The mounting block (405) is provided with a sliding groove (406). Two sliding blocks (407) are symmetrically slidably installed in the sliding groove (406). A dual-axis motor (408) is provided between the sliding blocks (407). The output end of the dual-axis motor (408) is provided with a screw (409). The screw (409) is threadedly connected to the sliding block (407).

8. A mobile sand spreading device for asphalt pavement maintenance according to claim 6, characterized in that, The upper end of the connecting pipe (403) is connected to the inside of the sand spreading cylinder (100), and the lower end of the suction pipe (402) is fixed on the sliding block (407).

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