Pavement repairing and maintaining device

Abstract

The utility model belongs to the technical field of road asphalt pavement maintenance, and particularly relates to a pavement repairing and maintaining device which comprises a walking device, an asphalt placing box and a gravel placing box, and the asphalt placing box and the gravel placing box are arranged on the walking device side by side in the walking direction of the walking device. The lower end of the asphalt containing box and the lower end of the gravel containing box are each provided with a discharging opening, a baffle is arranged on the lower side of each discharging opening, and the baffles are installed on the lower sides of the discharging openings in an openable and closable mode through adjusting assemblies. According to the utility model, the asphalt placing box and the gravel placing box are independently arranged side by side, so that asphalt and gravel can be paved at the same time by running once, and the asphalt coating and the gravel paving are not required to be sequentially performed manually, so that the manpower is reduced, and the working efficiency of road paving is improved; and the size of the blanking port blocked by the baffle is changed by adjusting the position of the baffle, so that construction is better.

Description

Technical Field

[0001] This utility model belongs to the field of highway asphalt pavement maintenance technology, specifically relating to a pavement repair and maintenance device. Background Technology

[0002] Asphalt pavement is one of the most widely used high-grade pavements in road construction. Generally, asphalt pavement refers to a pavement constructed by mixing road-grade asphalt with aggregate. The combination of asphalt and aggregate helps maintain the pavement's condition. Typically, during highway pavement maintenance, a layer of asphalt is laid first, followed by a layer of aggregate. Currently, for pavement repairs, a layer of asphalt is manually applied to the area to be repaired, followed by a layer of aggregate, which not only increases labor costs but also reduces the efficiency of road paving. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a road repair and maintenance device that allows asphalt and gravel to be laid simultaneously, reducing manual labor, improving the efficiency of road paving, and adjusting the flow rate of asphalt and gravel according to actual working conditions.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a road repair and maintenance device, including a walking device, an asphalt placement box and a sand and gravel placement box. The asphalt placement box and the sand and gravel placement box are arranged side by side on the walking device along the walking direction of the walking device. A discharge port is provided at the lower end of both the asphalt placement box and the sand and gravel placement box. A baffle is provided on the lower side of the discharge port. The baffle is installed on the lower side of the discharge port through an adjustment component.

[0005] The adjustment assembly includes an adjustment screw, an adjustment component, a connecting plate, and an adjustment shaft. The adjustment shaft is fixedly connected to the baffle, and one end of the adjustment shaft can rotatably pass through the side plate of the asphalt placement box or the sand and gravel placement box. One end of the connecting plate is hinged to one end of the adjustment shaft, and the lower end of the adjustment component is hinged to the other end of the connecting plate. The adjustment screw is threadedly connected to the adjustment component, and the upper part of the adjustment screw is threadedly connected to one side of the side plate.

[0006] Preferably, a handwheel is provided at the upper end of the adjusting screw.

[0007] Preferably, both the asphalt placement box and the sand and gravel placement box are equipped with a stirring roller, the stirring roller is connected to a stirring shaft, the two ends of the stirring shaft are respectively rotatably mounted on two side plates, and both stirring shafts are connected to a rotating device to drive their rotation.

[0008] Preferably, a rotating travel shaft is provided on the travel device, and a synchronous wheel is fixedly provided at one end of the travel shaft that is close to the asphalt placement box. A synchronous wheel is also provided at the same end of the mixing shaft of the asphalt placement box. The two synchronous wheels are connected by a synchronous chain or a synchronous belt.

[0009] Preferably, a motor is connected to one end of the stirring shaft of the sand and gravel storage box, and the motor is fixedly installed on one side of the sand and gravel storage box.

[0010] Preferably, a flat conveyor belt is provided below the discharge port of the sand and gravel placement box. The flat conveyor belt is located on the upper side of the walking device. A roller is provided at each end of the flat conveyor belt. A synchronous wheel is fixedly provided at one end of either roller. A synchronous wheel is also provided at the same end of the mixing shaft of the sand and gravel placement box. The two synchronous wheels are connected by a synchronous chain or a synchronous belt.

[0011] Preferably, the walking device consists of a support plate and rollers, with two support plates spaced apart and two rollers on each of the two support plates, and a walking shaft connecting the two corresponding rollers on both sides; or the walking device consists of a support plate and two rollers spaced apart, with the two support plates spaced apart, the two ends of the rollers being rotatably connected to the two support plates respectively, and the rollers being hollow.

[0012] Preferably, a pull handle is provided on the asphalt storage box or the sand and gravel storage box.

[0013] Compared with existing technologies, the above technical solution has the following beneficial effects:

[0014] 1. This utility model includes an independent and side-by-side asphalt placement box and a sand and gravel placement box. A discharge port is provided at the lower end of both placement boxes. When in use, pushing or pulling the device moves the asphalt placement box to the front in the direction of travel. Asphalt first falls from the discharge port and is laid, followed by sand and gravel falling from the adjacent discharge port. This device can complete the laying of asphalt and sand and gravel simultaneously in one operation, eliminating the need for manual asphalt application and sand and gravel laying in sequence, reducing labor costs and improving road paving efficiency. This utility model also includes an adjustable baffle below the discharge ports of the asphalt and sand and gravel placement boxes. By adjusting the position of the baffle, the size of the discharge port can be changed, allowing for adjustment of the flow rate of asphalt and sand and gravel according to actual working conditions, resulting in better construction.

[0015] 2. Both the asphalt and gravel placement boxes are equipped with mixing shafts. The mixing shafts continuously mix the asphalt and gravel to prevent the asphalt from solidifying and to prevent the gravel from getting stuck and unable to fall.

[0016] 3. A flat conveyor belt is installed below the sand and gravel placement box. The sand and gravel first fall onto the flat conveyor belt and then fall onto the construction road surface from the conveyor belt end, making the sand and gravel land more stably and the sand and gravel spread more evenly.

[0017] 4. The traveling shaft is connected to the mixing shaft of the asphalt placement box via a synchronous chain or synchronous belt. When the device is pulled or pushed, the traveling shaft rotates, thereby driving the mixing shaft of the asphalt placement box to rotate. There is no need to set up a power source to drive the mixing shaft of the asphalt placement box to rotate. The rollers of the paving conveyor belt and the mixing shaft of the sand and gravel placement box are also connected via a synchronous chain or synchronous belt. The mixing shaft of the sand and gravel placement box is connected to the rotation power source. There is no need to set up a power source for the paving conveyor belt. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the adjustment component.

[0020] Figure 3 This is a cross-sectional view of the present invention.

[0021] Figure 4 This is a top view of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure on the other side of this utility model.

[0023] Figure 6 This is a structural schematic diagram of another side of the present invention.

[0024] The components include: 1. Support plate; 2. Traveling shaft; 3. Roller; 4. Asphalt placement box; 5. Sand and gravel placement box; 6. Electrical box; 7. Pull handle; 8. Adjustment assembly; 9. Adjustment shaft; 10. Connecting plate; 11. Adjustment component; 12. Adjustment screw; 13. Fixing block; 14. Handwheel; 15. Hand lever; 16. Asphalt mixing shaft; 17. Sand and gravel mixing shaft; 18. Synchronous wheel; 19. Mixing synchronous chain; 20. Conveying synchronous chain; 21. Transmission synchronous chain; 22. Driven roller shaft; 23. Driven roller shaft; 24. Flat conveyor belt; 25. Asphalt mixing roller; 26. Sand and gravel mixing roller; 27. Motor; 28. Baffle; 29. ​​Output shaft; 30. Bearing with seat; 31. Discharge port; 32. Side plate. Detailed Implementation

[0025] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0026] like Figure 1As shown, this utility model discloses a road repair and maintenance device, including a walking device, an asphalt placement box 4, and a gravel placement box 5. The asphalt placement box 4 and the gravel placement box 5 are arranged side by side on the walking device along the walking direction. Construction workers push the device, and the walking device rolls to move the device. A discharge port 31 is provided at the lower end of both the asphalt placement box 4 and the gravel placement box 5. The discharge port 31 is set along the width direction of the device. Here, the length direction refers to the walking direction of the device. The asphalt placement box 4 is set at the front end of the running direction. Asphalt falls and is laid first from the discharge port 31, and then the gravel next to it falls and is laid from the discharge port 31. The device can complete the laying of asphalt and gravel in one run. A baffle 28 is provided on the lower side of the discharge port 31. The baffle 28 is installed on the lower side of the discharge port 31 and can be opened and closed by the adjustment component 8. By adjusting the position of the baffle 28, the size of the discharge port 31 can be changed.

[0027] like Figures 2-3 As shown, the adjustment assembly 8 in this embodiment includes an adjustment screw 12, an adjustment component 11, a connecting plate 10, and an adjustment shaft 9. The adjustment shaft 9 is fixedly connected to the baffle 28. One end of the adjustment shaft 9 passes through the side plates 32 of the asphalt placement box 4 and the sand and gravel placement box 5, and the adjustment shaft 9 is rotatably connected to the side plates 32. The adjustment screw 12, the adjustment component 11, and the connecting plate 10 are all located on the outside of the side plates 32. One end of the connecting plate 10 is hinged to one end of the adjustment shaft 9, and the lower end of the adjustment component 11 is hinged to the other end of the connecting plate 10. A nut is provided at the upper end of the adjustment component 11, and the adjustment screw 12 is threadedly connected to the upper end of the adjustment component 11. A fixing block 13 is provided above the 1, and the fixing block 13 is fixedly connected to the side plate 32. The adjusting screw 12 passes through the fixing block 13 and is threadedly connected to the fixing block 13. Rotating the adjusting screw 12 causes the upper end of the adjusting member 11 to move up or down along the adjusting screw 12, thereby causing the lower end of the adjusting member 11 to move up or down. Since the connecting plate 10 is hinged to the lower end of the adjusting member 11, when the lower end of the adjusting member 11 moves up or down, the connecting plate 10 will rotate around the adjusting shaft 9, thereby causing the baffle 28 to rotate. The rotation of the baffle 28 will change the size of the obstruction of the discharge port 31, thereby changing the discharge speed of asphalt or sand.

[0028] To facilitate the rotation of the adjusting screw 12, a handwheel 14 is provided at the upper end of the adjusting screw 12, and a handle 15 is also provided on the handwheel 14. By rotating the handle 15, it is easier to rotate the adjusting screw 12.

[0029] like Figure 4As shown, both the asphalt placement box 4 and the sand and gravel placement box 5 are equipped with mixing rollers, namely asphalt mixing roller 25 and sand and gravel mixing roller 26. Several vertical rods are set on the outside of the two mixing rollers to mix asphalt and sand and gravel. An asphalt mixing shaft 16 is set in the center of the asphalt mixing roller 25, and a sand and gravel mixing shaft 17 is set in the center of the sand and gravel mixing roller 26. The two ends of the two mixing shafts are respectively rotatably mounted on two side plates 32, and both mixing shafts are connected to a rotating device to drive their rotation.

[0030] like Figures 5-6 As shown, the traveling device consists of a support plate 1 and rollers 3. Two support plates 1 are spaced apart, and two rollers 3 are installed on each of the two support plates 1. A traveling shaft 2 is connected between the two corresponding rollers 3 on both sides. However, the installation of rollers 3 will cause the weight of the device to be borne by four rollers 3. Therefore, the rollers 3 may cause indentations on the asphalt of the road surface, causing the asphalt to stick to the rollers 3 and be difficult to clean. Alternatively, the traveling device consists of a support plate 1 and two rollers spaced apart. The two support plates 1 are spaced apart, and the traveling shaft 2 is located at the center of the roller. The two ends of the traveling shaft 2 are rotatably connected to the two support plates 1 respectively, and the roller is hollow. This arrangement can distribute the weight of the device and will not cause indentations on the road surface.

[0031] A synchronous wheel 18 is fixedly installed at one end of the traveling shaft 2 at the asphalt placement box 4. A synchronous wheel 18 is also installed at the same end of the asphalt mixing shaft 16. The two synchronous wheels 18 are connected by a synchronous chain or a synchronous belt. In this embodiment, the synchronous wheel 18 is a synchronous sprocket. The mixing synchronous chain 19 is wrapped around the outside of the two synchronous wheels 18. When the device is driven to move, the traveling shaft 2 rotates and the rotational power is transmitted to the asphalt mixing shaft 16 through the mixing synchronous chain 19, which in turn drives the asphalt mixing roller 25 to rotate and mix the asphalt. There is no need to set the rotational power of the asphalt mixing roller 25 again.

[0032] A motor 27 is connected to one end of the sand and gravel mixing shaft 17. The motor 27 is fixedly installed on one side of the sand and gravel placement box 5. A synchronous pulley 18 is fixedly installed on the output shaft 29 of the motor 27. A synchronous pulley 18 is also installed at the same end of the sand and gravel mixing shaft 17. A transmission synchronous chain 21 is wound around the two synchronous pulleys 18. When the motor 27 rotates, it drives the sand and gravel mixing shaft 17 to rotate and mix the sand and gravel through the transmission synchronous chain 21.

[0033] A flat conveyor belt 24 is installed below the discharge port 31 of the sand and gravel placement box 5. The flat conveyor belt 24 is set on the upper side of the support plate 1. At each end of the flat conveyor belt 24, there is a roller shaft, namely a drive roller shaft 22 and a driven roller shaft 23. Both ends of the drive roller shaft 22 and the driven roller shaft 23 are mounted on the support plate 1 through bearing seats 30. A synchronous wheel 18 is fixedly installed at one end of the drive roller shaft 22. Another synchronous wheel 18 is installed at the same end of the mixing shaft of the sand and gravel placement box 5. The conveying synchronous chain 20 is wound around the two synchronous wheels 18. The motor 27 drives the conveying synchronous chain 21 to rotate. The conveying synchronous chain 20 drives the drive roller shaft 22 to rotate synchronously, so that the flat conveyor belt 24 rotates around the two roller shafts. The sand and gravel first fall on the flat conveyor belt 24 and then fall on the construction road surface from the conveying end of the flat conveyor belt 24, so that the sand and gravel land more stably and the sand and gravel are laid more evenly.

[0034] In this embodiment, a pull handle 7 is provided at the front end of the device. The pull handle 7 is fixedly installed on the asphalt placement box 4. The device is pulled by pulling the pull handle 7. In this embodiment, the upper ends of the asphalt placement box 4 and the sand and gravel placement box 5 are both open to facilitate the addition of asphalt and sand and gravel. The upper port of the sand and gravel placement box 5 is higher than the upper port of the asphalt placement box 4. An electrical box 6 is also provided on one side of the upper port of the sand and gravel placement box 5.

[0035] When using this invention, the construction worker pulls the handle 7, and the asphalt at the front end falls from the discharge port 31 of the asphalt placement box 4 onto the road surface. As the device is pulled, the asphalt is evenly spread on the road surface, and at the same time, the sand and gravel at the rear fall from the sand and gravel placement box 5 onto the spreading conveyor belt 24, which then spreads them evenly on top of the asphalt on the road surface. This device can complete the laying of asphalt and sand and gravel in one operation, eliminating the need for manual asphalt application and sand and gravel laying in sequence, reducing labor and improving the efficiency of road paving. In addition, this invention has a baffle 28 below the discharge port 31 of both the asphalt placement box 4 and the sand and gravel placement box 5. The baffle 28 is adjustable. By adjusting the position of the baffle 28, the size of the discharge port 31 can be changed, which allows for adjustment of the flow rate of asphalt and sand and gravel according to the actual working conditions, resulting in better construction.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A road surface repair and maintenance device, characterized in that: The device includes a walking device, an asphalt placement box (4), and a sand and gravel placement box (5). The asphalt placement box (4) and the sand and gravel placement box (5) are arranged side by side on the walking device along the walking direction of the walking device. A discharge port (31) is provided at the lower end of the asphalt placement box (4) and the sand and gravel placement box (5). A baffle (28) is provided on the lower side of the discharge port (31). The baffle (28) is installed on the lower side of the discharge port (31) through the adjustment component (8). The adjustment assembly (8) includes an adjustment screw (12), an adjustment component (11), a connecting plate (10), and an adjustment shaft (9). The adjustment shaft (9) is fixedly connected to the baffle (28), and one end of the adjustment shaft (9) can rotatably pass through the side plate (32) of the asphalt placement box (4) or the sand and gravel placement box (5). One end of the connecting plate (10) is hinged to one end of the adjustment shaft (9), and the lower end of the adjustment component (11) is hinged to the other end of the connecting plate (10). The adjustment screw (12) is threadedly connected to the adjustment component (11), and the upper part of the adjustment screw (12) is threadedly connected to one side of the side plate (32).

2. The road repair and maintenance device according to claim 1, characterized in that: A handwheel (14) is provided at the upper end of the adjusting screw (12).

3. The road repair and maintenance device according to claim 1, characterized in that: Both the asphalt placement box (4) and the sand and gravel placement box (5) are equipped with stirring rollers. The stirring rollers are connected to stirring shafts. The two ends of the stirring shafts are rotatably mounted on two side plates (32). Both stirring shafts are connected to a rotating device that drives them to rotate.

4. A road repair and maintenance device according to claim 3, characterized in that: A rotating walking shaft (2) is provided on the walking device. A synchronous wheel (18) is fixedly provided at one end of the walking shaft (2) which is close to the asphalt placement box (4). A synchronous wheel (18) is also provided at the same end of the mixing shaft of the asphalt placement box (4). The two synchronous wheels (18) are connected by a synchronous chain or a synchronous belt.

5. A road repair and maintenance device according to claim 3, characterized in that: A motor (27) is connected to one end of the stirring shaft of the sand and gravel storage box (5), and the motor (27) is fixedly installed on one side of the sand and gravel storage box (5).

6. A road repair and maintenance device according to claim 5, characterized in that: A flat conveyor belt (24) is provided below the discharge port (31) of the sand and gravel placement box (5). The flat conveyor belt (24) is located on the upper side of the walking device. A roller is provided at each end of the flat conveyor belt (24). A synchronous wheel (18) is fixedly provided at one end of any one of the rollers. A synchronous wheel (18) is also provided at the same end of the stirring shaft of the sand and gravel placement box (5). The two synchronous wheels (18) are connected by a synchronous chain or a synchronous belt.

7. A road repair and maintenance device according to claim 1, characterized in that: The walking device consists of a support plate (1) and rollers (3). The two support plates (1) are spaced apart, and two rollers (3) are provided on each of the two support plates (1). A walking shaft (2) is connected between the two corresponding rollers (3) on both sides. Alternatively, the walking device consists of a support plate (1) and two rollers spaced apart. The two support plates (1) are spaced apart, and the two ends of the rollers are rotatably connected to the two support plates (1) respectively. The rollers are hollow.

8. A road repair and maintenance device according to claim 1, characterized in that: A pull handle (7) is provided on the asphalt placement box (4) or the sand and gravel placement box (5).

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