A high-pressure washing device and a road maintenance vehicle

Abstract

The utility model belongs to the technical field of environmental sanitation equipment, provide a kind of high pressure washing device and road maintenance vehicle, high pressure washing device includes water collecting box, connecting frame, deflector, first hose, water cannon head and second hose.The lower end of connecting frame is connected with water collecting box, the upper end of deflector is rotatably connected with the upper end outer edge of water collecting box, the lower end of deflector can be contacted with ground after rotating, first hose is arranged on connecting frame, one end of first hose is communicated with the high pressure water pump of road maintenance vehicle, water cannon head is connected with the upper end of connecting frame, water cannon head can be inclined to inject water flow downward and water flow can flow to the upper end of deflector in water collecting box after passing the lower end of deflector along road surface.In the process that the utility model water cannon head injects high pressure water flow to clean road surface, the sewage of cleaning road surface is recycled by water collecting box, thereby reducing water consumption, avoid the situation that the efficiency is reduced due to the frequent return of road maintenance vehicle to add water.

Description

Technical Field

[0001] This utility model relates to the field of sanitation equipment technology, specifically to a high-pressure washing device and a road maintenance vehicle. Background Technology

[0002] In the existing technology, when road maintenance vehicles clean roads and sidewalks on both sides of the road, they usually use high-pressure water guns for washing.

[0003] In practice, it has been found that although the water consumption of using high-pressure water guns to wash the road surface is reduced compared to traditional low-pressure water pipe washing, there is still room for improvement. Utility Model Content

[0004] In view of the shortcomings of the prior art, the present invention provides a high-pressure washing device and a road maintenance vehicle, which can solve or at least alleviate one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] This utility model provides a high-pressure flushing device, comprising: A water collection box, wherein a roller assembly is provided at the lower end of the water collection box and the upper end of the water collection box is open; A connecting frame, the lower end of which is connected to the water collection box; A flow guide plate, the upper end of which is rotatably connected to the upper outer edge of the water collection box, and the lower end of which can contact the ground after rotation; The first hose is mounted on the connecting frame, and one end of the first hose is connected to the high-pressure water pump of the road maintenance vehicle. A water gun nozzle, connected to the end of the first hose, and connected to the upper end of the connecting frame, allows the water gun nozzle to spray water downwards at an angle, and the water flow, after passing over the road surface, flows along the lower end of the guide plate to the upper end of the guide plate and into the water collection box; and The second hose is installed on the connecting frame. One end of the second hose is connected to the water collection box, and the other end of the second hose is connected to the return water pump of the road maintenance vehicle.

[0006] Preferably, the water collection box includes: A partition divides the inner cavity of the water collection box into an open-top wastewater recovery tank and an open-top dry sludge collection tank, with the wastewater recovery tank located between the dry sludge collection tank and the guide plate; and A filter plate with multiple filter holes is provided. The filter plate covers the open end of the wastewater recovery tank. The end of the filter plate away from the dry residue collection tank smoothly transitions to the upper end of the guide plate. The second hose is connected to the wastewater recycling tank.

[0007] Preferably, the connecting frame includes: The connecting arms are arranged symmetrically in two. The lower ends of the two connecting arms are respectively connected to the two sides of the end of the water collection box near the guide plate. The upper ends of the two connecting arms are inclined away from the water collection box and close to each other. Two connecting sleeves are symmetrically arranged, one end of each connecting sleeve is closed and fixedly connected to the upper end of the corresponding connecting arm; and A connecting post, the two ends of which are respectively clearance-fitted with the inner wall of the corresponding connecting sleeve at the end away from the connecting arm; The water gun head is connected to the connecting column; The lower end of the connecting arm is rotatably connected to the water collection box.

[0008] Preferably, the connecting column has a mounting hole; the water gun head passes through the mounting hole; the outer wall of the water gun head is fixedly connected to the inner wall of the mounting hole; The connecting frame also includes: A connecting pipe, which is sleeved outside the water gun head, and its end is fixedly connected to the connecting post; and The handle is fixedly connected to the outer wall of the end of the connecting tube away from the connecting post.

[0009] Preferably, the water collection box includes: A base plate, one end of which is upturned and rotatably connected to the upper end of the guide plate; A front baffle, the lower end of which extends vertically and connects to the end of the base plate away from the guide plate, and the upper end of the front baffle is curved toward the guide plate; and Side panels, two side panels are symmetrically arranged, and the inner side of the side panels is connected to both the side of the bottom plate and the side of the front baffle. The lower end of the connecting arm is rotatably connected to the end of the side plate near the guide plate; the lower end of the partition is connected to the bottom plate; both ends of the partition are respectively connected to the two side plates; the lower end face of the filter plate is connected to the partition and the upturned end of the bottom plate.

[0010] Preferably, the connecting frame further includes: A connecting rod, the lower end of which is hinged to the upper outer wall of the front baffle; and The fitting tube has its upper end rotatably connected to the connecting column, and its lower end inner wall is slidably connected to the upper end of the connecting rod along its axial direction.

[0011] Preferably, an installation window is provided on one of the side panels; The water collection box also includes a slag collection tray; one end of the slag collection tray can pass through the installation window and be inserted into the dry slag collection tank, and the other end of the slag collection tray is connected to a pull ring; the slag collection tray is adapted to the dry slag collection tank.

[0012] Preferably, the roller assembly includes: Two first rollers are symmetrically arranged, and both first rollers are connected to the side of the front baffle that faces away from the guide plate; and The second roller, there are two symmetrically arranged second rollers, and the two rollers are respectively connected to the outer wall of the side plate; When both the first roller and the second roller are in contact with the road surface, the end of the base plate near the front baffle is higher than the end near the guide plate.

[0013] Preferably, a water collection plate extends from the end of the side plate away from the front baffle; the guide plate can be positioned between the two water collection plates after rotation.

[0014] This utility model also provides a road maintenance vehicle, including any of the above-mentioned high-pressure washing devices.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this invention, during the process of cleaning the road surface by spraying high-pressure water from the water gun nozzle, the wastewater from cleaning the road surface is recycled and reused through a water collection box, thereby reducing water consumption and avoiding the situation where the road maintenance vehicle frequently returns to refill water, which leads to a decrease in efficiency. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the high-pressure flushing device in one embodiment of the present invention; Figure 2 for Figure 1 Another 3D image; Figure 3 for Figure 1 Another 3D image; Figure 4 for Figure 1 Another 3D image; Figure 5 This is an enlarged view of the water collection box in section 2.

[0018] Figure label: 10. Water collection box; 11. Partition plate; 12. Wastewater recovery tank; 13. Dry residue collection tank; 14. Filter plate; 15. Bottom plate; 16. Front baffle plate; 17. Side plate; 171. Installation window; 18. Sludge collection drawer; 19. Water collection plate; 20. Connecting frame; 21. Connecting arm; 22. Connecting sleeve; 23. Connecting column; 24. Connecting pipe; 25. Handle; 26. Connecting rod; 27. Mating pipe; 30. Deflector plate; 40. First hose; 50. Water gun nozzle; 60. Second hose; 70. First roller; 71. Second roller. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0021] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] See Figures 1 to 5 This embodiment provides a high-pressure flushing device, including: a water collection box 10, a connecting frame 20, a guide plate 30, a first hose 40, a water gun head 50, and a second hose 60.

[0026] A roller assembly is provided at the lower end of the water collection box 10, and the upper end of the water collection box 10 is open. The lower end of the connecting frame 20 is connected to the water collection box 10. The upper end of the guide plate 30 is rotatably connected to the outer edge of the upper end of the water collection box 10. After the lower end of the guide plate 30 rotates, it can contact the ground. Specifically, the upper end of the guide plate 30 can rotate so that its lower end can maintain contact with the ground as much as possible. The first hose 40 is provided on the connecting frame 20, and one end of the first hose 40 is connected to the high-pressure water pump of the road maintenance vehicle. The water gun head 50 is connected to the end of the first hose 40 and is connected to the upper end of the connecting frame 20. The water gun head 50 can spray water at an angle downwards, and the water flow can pass over the road surface and then flow along the lower end of the guide plate 30 to the upper end of the guide plate 30 and into the water collection box 10. The deflector plate 30 is located between the water gun nozzle 50 and the water collection box 10, meaning the water gun nozzle 50 is positioned diagonally above the deflector plate 30. As the water collection box 10 moves forward, the water jet from the water gun nozzle 50 is positioned behind the water collection box 10. At this time, the deflector plate 30 is located at the rear end of the water collection box 10, allowing water to flow along the deflector plate 30 into the water collection box 10. The second hose 60 is mounted on the connecting frame 20. One end of the second hose 60 is connected to the water collection box 10, and the other end is connected to the return water pump of the road maintenance vehicle.

[0027] Both the return water pump and the high-pressure water pump utilize existing technology. The return water pump is used to pump the wastewater in the water collection box 10 back to the water tank of the road maintenance vehicle, while the high-pressure water pump is used to pump the water from the water tank to the water gun nozzle 50. The water collection box 10 is located in front of the water jet from the water gun nozzle 50. The outer walls of the first hose 40 and the second hose 60, located near the road maintenance vehicle, can be connected together for easy storage and organization.

[0028] In this embodiment, the sanitation worker holds the water gun nozzle 50 and can push the water collection box 10 forward or backward through the connecting frame 20. During the rinsing process, the water jet from the water gun nozzle 50 washes the ground behind the water collection box 10. The water collection box 10 is located in front of the water flow, and the water flow speed is relatively fast. After rinsing the ground, some of the water flows along the lower end of the guide plate 30 to the upper end and into the water collection box 10. The water collected in the water collection box 10 is pumped back to the water tank of the road maintenance vehicle through the second hose 60 and the return water pump for recycling, thereby reducing water consumption and avoiding the situation of reduced efficiency caused by the road maintenance vehicle frequently returning to refill.

[0029] In one embodiment, the water collection box 10 includes a partition 11 and a filter plate 14.

[0030] The partition 11 divides the inner cavity of the water collection box 10 into a wastewater recovery tank 12 with an open upper end and a dry residue collection tank 13 with an open upper end. The wastewater recovery tank 12 is located between the dry residue collection tank 13 and the guide plate 30. The filter plate 14 has multiple filter holes and covers the open end of the wastewater recovery tank 12. The end of the filter plate 14 away from the dry residue collection tank 13 smoothly transitions to the upper end of the guide plate 30. Specifically, the smooth transition between the filter plate 14 and the guide plate 30 means that the water flow from the lower end to the upper end of the guide plate 30 can flow naturally and smoothly onto the filter plate 14, without a large step between the filter plate 14 and the guide plate 30. The second flexible hose 60 is connected to the wastewater recovery tank 12.

[0031] In this embodiment, the water jet from the water gun head 50 sprays water at an inclined angle to wash the ground, and then flows from the lower end of the guide plate 30 to the filter plate 14. The garbage washed on the ground moves laterally to the dry slag collection tank 13 after passing through the filter plate 14, while the sewage flows downward through the filter holes of the filter plate 14 into the sewage recovery tank 12, and is pumped back to the water tank of the road maintenance vehicle through the second hose 60. The filter plate 14 filters the sewage.

[0032] In one embodiment, the connecting frame 20 includes a connecting arm 21, a connecting sleeve 22, and a connecting post 23.

[0033] Two connecting arms 21 are symmetrically arranged. The lower ends of the two connecting arms 21 are connected to the two sides of the end of the water collection box 10 near the guide plate 30, respectively. The upper ends of the two connecting arms 21 are inclined away from the water collection box 10 and close to each other. Two connecting sleeves 22 are symmetrically arranged. One end of the two connecting sleeves 22 is closed and fixedly connected to the upper end of the corresponding connecting arm 21. The two ends of the connecting column 23 are respectively clearance-fitted to the inner wall of the end of the corresponding connecting sleeve 22 away from the connecting arm 21. The water gun head 50 is connected to the connecting column 23.

[0034] In this embodiment, the two ends of the connecting post 23 are inserted into the connecting sleeve 22, so that the connecting post 23 can rotate on the two connecting sleeves 22. The water gun head 50 connected to the connecting post 23 can rotate accordingly. In addition, the connecting arm 21 can rotate the water gun head 50 to rinse the ground from multiple angles during use, thereby improving the cleaning effect.

[0035] In one embodiment, the lower end of the connecting arm 21 is rotatably connected to the water collection box 10. There are many ways to make the rotatable connection. For example, the lower end of the connecting arm 21 may be fitted with a bearing, and the outer wall of the bearing may be fixedly connected to the water collection box 10.

[0036] In this embodiment, the lower end of the connecting arm 21 is rotatably connected to the water collection box 10, so that sanitation workers can adjust the height of the water gun nozzle 50 when operating it, adapting to different people's heights and improving adaptability.

[0037] In one embodiment, the connecting column 23 has an installation hole, through which the water gun head 50 passes, and the outer wall of the water gun head 50 is fixedly connected to the inner wall of the installation hole.

[0038] The connecting frame 20 also includes a connecting tube 24 and a handle 25.

[0039] The connecting pipe 24 is sleeved outside the water gun head 50, and the end of the connecting pipe 24 is fixedly connected to the connecting post 23. The handle 25 is fixedly connected to the outer wall of the end of the connecting pipe 24 away from the connecting post 23.

[0040] In this embodiment, when sanitation workers operate the device, they can hold the handle 25 and drive the connecting column 23 to rotate through the connecting pipe 24, thereby driving the water gun head 50 to rotate, which is quite convenient.

[0041] In one embodiment, the water collection box 10 includes a base plate 15, a front baffle 16, and a side plate 17.

[0042] One end of the base plate 15 curves upward and is rotatably connected to the upper end of the guide plate 30. The lower end of the front baffle 16 extends vertically and connects to the end of the base plate 15 away from the guide plate 30, while the upper end of the front baffle 16 curves towards the guide plate 30. Two side plates 17 are symmetrically arranged, with the inner side of the side plate 17 connected to both the side of the base plate 15 and the side of the front baffle 16. The lower end of the connecting arm 21 is rotatably connected to the end of the side plate 17 near the guide plate 30; the lower end of the partition plate 11 is connected to the base plate 15; both ends of the partition plate 11 are connected to the two side plates 17 respectively. The lower end face of the filter plate 14 is connected to the partition plate 11 and the upward-curved end of the base plate 15. The filter plate 14 smoothly transitions to the guide plate 30. The space between the partition plate 11 and the front baffle 16 is the dry sludge collection tank 13, and the space between the partition plate 11 and the upward-curved end of the base plate 15 is the wastewater recovery tank 12. The upper end of the front baffle 16 is bent toward the connecting frame 20.

[0043] In this embodiment, sanitation workers wash the ground, and the garbage is washed onto the filter plate 14 and gradually pushed into the dry slag collection tank 13. Because the filter plate 14 has holes, the friction between the garbage and the filter plate 14 is relatively large, and some garbage accumulates on the filter plate 14. At this time, the sanitation worker can pull the connecting arm 21. Under the action of gravity, the entire water collection box 10 rotates and is suspended in the air. At this time, the front baffle 16 faces downward, and the garbage on the filter plate 14 can fall onto the front baffle 16 and enter the dry slag collection tank 13. The curved end of the front baffle 16 can guide the garbage and prevent the garbage from falling outward.

[0044] In one embodiment, the connecting frame 20 further includes a connecting rod 26 and a mating tube 27.

[0045] The lower end of the connecting rod 26 is hinged to the upper outer wall of the front baffle 16. The upper end of the mating tube 27 is rotatably connected to the connecting post 23, and the lower inner wall of the mating tube 27 is slidably connected to the upper end of the connecting rod 26 along its axial direction. Specifically, two connecting rings are rotatably sleeved on the outer side of the connecting post 23, and the lower ends of the two connecting rings are connected to a U-shaped arm. The middle part of the U-shaped arm is fixedly connected to the upper end of the mating tube 27.

[0046] In this embodiment, sanitation workers can hold the connecting rod 26 and the handle 25. After being held, the connecting rod 26 can be moved outward a certain distance from the connecting tube 27, causing one end of the guide plate 30 to gradually approach the connecting rod 26. At this time, the water collection box 10 is suspended, allowing the water gun head 50 to directly wash the ground. For some corners on the road surface where the water collection box 10 is inconvenient to access, direct washing with the water gun is more convenient.

[0047] In one embodiment, a mounting window 171 is provided on one of the side panels 17, and the water collection box 10 also includes a slag collection drawer 18. One end of the slag collection drawer 18 can pass through the mounting window 171 and be inserted into the dry slag collection trough 13, and the other end of the slag collection drawer 18 is connected to a pull ring; the slag collection drawer 18 is adapted to the dry slag collection trough 13. Specifically, the slag collection drawer 18 is configured as a drawer.

[0048] In this embodiment, when the waste on the filter plate 14 enters the dry slag collection trough 13, it falls directly into the slag collection tray 18. The slag collection tray 18 is periodically cleaned by pulling out the pull ring.

[0049] In one embodiment, the roller assembly includes a first roller 70 and a second roller 71.

[0050] Two first rollers 70 are symmetrically arranged, each connected to the side of the front baffle 16 opposite to the guide vane 30. Two second rollers 71 are also symmetrically arranged, each connected to the outer wall of the side plate 17. When both the first rollers 70 and 71 are in contact with the road surface, the end of the base plate 15 near the front baffle 16 is higher than the end near the guide vane 30. Specifically, the diameter of the second roller 71 can be smaller than the diameter of the first roller 70 to allow the base plate 15 to tilt; alternatively, by utilizing the design of the upturned end of the base plate 15, the second roller 71 is positioned on the side plate 17 near the upturned end, with the end of the side plate 17 away from the front baffle 16 gradually decreasing in size and matching the upturned end of the base plate 15. This ensures that when the second roller 71 lands, the end of the base plate 15 near the front baffle 16 is naturally higher than its upturned end.

[0051] In this embodiment, when both the first roller 70 and the second roller 71 are in contact with the road surface, the base plate 15 is inclined. The upturned end of the base plate 15 ensures that the sewage collection tank 12 can collect sewage normally. At this time, the height of the upturned end of the base plate 15 is reduced, thereby reducing the inclination of the guide plate 30. After the water sprayed from the water gun head 50 cleans the road surface, it is easier for the water to enter the sewage collection tank 12 along the guide plate 30.

[0052] In one embodiment, a water collection plate 19 extends from the end of the side plate 17 away from the front baffle 16; the guide plate 30 can be positioned between the two water collection plates 19 after rotation. The water collection plates 19 and the guide plate 30 are fitted with a clearance.

[0053] In this embodiment, when the lower end of the guide plate 30 contacts the road surface, the water collection plate 19 is located on both sides of the guide plate 30. When the water flows upward along the guide plate 30, the water collection plates 19 on both sides guide the water flow, reducing the overflow of water from both sides, thereby increasing the amount of sewage recovered.

[0054] This embodiment also provides a road maintenance vehicle, including any of the high-pressure washing devices described above.

[0055] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A high-pressure flushing device, characterized in that, include: A water collection box (10) is provided with a roller assembly at the lower end of the water collection box (10) and the upper end of the water collection box (10) is open; A connecting frame (20), the lower end of which is connected to the water collection box (10); The upper end of the guide plate (30) is rotatably connected to the upper outer edge of the water collection box (10), and the lower end of the guide plate (30) can contact the ground after rotation. The first hose (40) is mounted on the connecting frame (20), and one end of the first hose (40) is connected to the high-pressure water pump of the road maintenance vehicle. A water gun nozzle (50) is connected to the end of the first hose (40) and to the upper end of the connecting frame (20). The water gun nozzle (50) can spray water downwards at an angle, and the water flow can pass over the road surface and then flow along the lower end of the guide plate (30) to the upper end of the guide plate (30) into the water collection box (10). The second hose (60) is mounted on the connecting frame (20). One end of the second hose (60) is connected to the water collection box (10), and the other end of the second hose (60) is connected to the return water pump of the road maintenance vehicle.

2. The high-pressure flushing device as described in claim 1, characterized in that, The water collection box (10) includes: A partition (11) divides the inner cavity of the water collection box (10) into an open-top sewage recovery tank (12) and an open-top dry residue collection tank (13), wherein the sewage recovery tank (12) is located between the dry residue collection tank (13) and the guide plate (30); and The filter plate (14) has multiple filter holes and covers the open end of the sewage recovery tank (12). The end of the filter plate (14) away from the dry residue collection tank (13) smoothly transitions to the upper end of the guide plate (30). The second hose (60) is connected to the sewage recovery tank (12).

3. The high-pressure flushing device as described in claim 2, characterized in that, The connecting frame (20) includes: Connecting arms (21), two connecting arms (21) are symmetrically arranged. The lower ends of the two connecting arms (21) are respectively connected to the two sides of the end of the water collection box (10) near the guide plate (30). The upper ends of the two connecting arms (21) are inclined away from the water collection box (10) and close to each other. Connecting sleeves (22), two connecting sleeves (22) are symmetrically arranged, one end of each connecting sleeve (22) is closed and fixedly connected to the upper end of the corresponding connecting arm (21); and The connecting post (23) has two ends that are respectively fitted with the inner wall of the corresponding connecting sleeve (22) away from the connecting arm (21) with a clearance fit; The water gun nozzle (50) is connected to the connecting post (23); The lower end of the connecting arm (21) is rotatably connected to the water collection box (10).

4. The high-pressure flushing device as described in claim 3, characterized in that, The connecting column (23) has an installation hole; the water gun head (50) passes through the installation hole; the outer wall of the water gun head (50) is fixedly connected to the inner wall of the installation hole; The connecting frame (20) also includes: A connecting pipe (24) is sleeved outside the water gun head (50), and the end of the connecting pipe (24) is fixedly connected to the connecting post (23); and The handle (25) is fixedly connected to the outer wall of the end of the connecting tube (24) away from the connecting post (23).

5. The high-pressure flushing device as described in claim 3, characterized in that, The water collection box (10) includes: The base plate (15) has one end that curves upward and is rotatably connected to the upper end of the guide plate (30); A front baffle (16), the lower end of which extends vertically and connects to the end of the base plate (15) away from the guide plate (30), and the upper end of the front baffle (16) is bent toward the guide plate (30); and Side plate (17), two side plates (17) are symmetrically arranged, and the inner side of the side plate (17) is connected to the side of the bottom plate (15) and the side of the front baffle (16). The lower end of the connecting arm (21) is rotatably connected to the end of the side plate (17) near the guide plate (30); the lower end of the partition plate (11) is connected to the bottom plate (15); the two ends of the partition plate (11) are respectively connected to the two side plates (17); the lower end face of the filter plate (14) is connected to the partition plate (11) and the upturned end of the bottom plate (15).

6. The high-pressure flushing device as described in claim 5, characterized in that, The connecting frame (20) also includes: A connecting rod (26), the lower end of which is hinged to the upper outer wall of the front baffle (16); and The fitting tube (27) is rotatably connected to the connecting column (23) at its upper end, and the inner wall of the lower end of the fitting tube (27) is slidably connected to the upper end of the connecting rod (26) along its axial direction.

7. The high-pressure flushing device as described in claim 6, characterized in that, One of the side panels (17) is provided with an installation window (171); The water collection box (10) also includes a slag collection tray (18); one end of the slag collection tray (18) can pass through the installation window (171) and be inserted into the dry slag collection trough (13), and the other end of the slag collection tray (18) is connected to a pull ring; the slag collection tray (18) is adapted to the dry slag collection trough (13).

8. The high-pressure flushing device as described in claim 7, characterized in that, The roller assembly includes: Two first rollers (70) are symmetrically arranged, and both first rollers (70) are connected to the side of the front baffle (16) opposite to the guide plate (30); and The second roller (71) is symmetrically arranged in two, and the two rollers are respectively connected to the outer wall of the side plate (17); When both the first roller (70) and the second roller (71) are in contact with the road surface, the end of the base plate (15) near the front baffle (16) is higher than the end near the guide plate (30).

9. The high-pressure flushing device as described in claim 8, characterized in that, A water collection plate (19) extends from one end of the side plate (17) away from the front baffle (16); the guide plate (30) can be positioned between the two water collection plates (19) after rotation.

10. A road maintenance vehicle, characterized in that, Includes the high-pressure flushing device according to any one of claims 1-9.

Images