Negative pressure cleaning equipment for cooperatively removing road raised dust and dirt

Abstract

The invention discloses road raised dust and dirt collaborative removal negative pressure cleaning equipment which comprises a negative pressure suction box, four sets of lifting type mounting frames, a swing type raised dust assembly, a dirt separation mechanism, a sewage storage box, a dirt storage box and a dust falling plate. The negative pressure suction box is mounted at the front end of a road cleaning vehicle through the four sets of lifting type mounting frames; the swing type dust raising assembly is installed at the bottom of the front end of the negative pressure suction box, the dirt separation mechanism is arranged in the negative pressure suction box, the sewage storage box and the dirt storage box are symmetrically installed at the tail of the negative pressure suction box, the two sets of dust falling plates are symmetrically installed in the middle of the negative pressure suction box up and down, and the front end of the negative pressure suction box is further provided with the visualization assembly. The visual assembly is connected with a controller through a circuit. According to the designed vehicle-mounted negative pressure cleaning equipment, dynamic visual observation, adjustable negative pressure suction and dirt separation and storage treatment can be conducted on dust and dirt on a road, and the road cleaning effect is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of road cleaning technology, specifically to a negative pressure cleaning device for the synergistic removal of road dust and dirt. Background Technology

[0002] Road cleaning is a standardized operation that removes garbage, dust, and stains from roads by manual or mechanical means. Its core objective is to maintain a clean road environment. It includes four methods: manual sweeping (suitable for areas that are difficult for machinery to reach), mechanical sweeping (high efficiency), flushing (deep cleaning with high-pressure water guns), and watering (dust suppression). Among them, road sweeper trucks are vehicles commonly used to clean up road dust. The sweeping equipment equipped on the vehicle can perform dust reduction and cleaning treatment on the road.

[0003] However, existing road sweeping equipment has the following problems in the process of cleaning roads: While it is effective at cleaning dust, it is ineffective at cleaning larger debris, often resulting in incomplete cleaning. Debris is swept to the roadside and still requires manual cleaning. Furthermore, after the sweeping equipment sucks in dust and debris, it usually collects them in a dust container, failing to differentiate between different types of road dirt, thus affecting the subsequent treatment of the dirt. Therefore, a corresponding technical solution is needed to address these problems. Summary of the Invention

[0004] The purpose of this invention is to provide a negative pressure cleaning device for the coordinated removal of road dust and dirt. This addresses the problem that while road sweeping equipment primarily cleans dust effectively, it is less effective at cleaning larger debris, often resulting in incomplete cleaning. The debris is swept to the roadside and still requires manual cleaning. Furthermore, the equipment typically collects dust and debris in a dust container, failing to differentiate between different types of road dirt, thus affecting subsequent dirt treatment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a negative pressure cleaning device for the coordinated removal of road dust and dirt, comprising a negative pressure suction box, a lifting mounting frame, a swinging dust-generating component, a dirt-separating mechanism, a wastewater storage box, a dirt collection box, and dust-suppressing plates. The negative pressure suction box is mounted on the front end of a road cleaning vehicle via four sets of lifting mounting frames. The swinging dust-generating component is mounted at the bottom of the front end of the negative pressure suction box. The dirt-separating mechanism is built into the interior of the negative pressure suction box. The wastewater storage box and the dirt collection box are symmetrically mounted at the rear end of the negative pressure suction box. The dust-suppressing plates are divided into two sets and symmetrically mounted vertically in the middle of the negative pressure suction box. The front end of the negative pressure suction box is also equipped with a visualization component, which is connected to a controller via wiring. The controller is installed inside the road cleaning vehicle.

[0006] The negative pressure suction box includes a box body, a suction hood, and a negative pressure pump. The box body has an inner cavity. The suction hood is installed at the lower right corner of the box body. The negative pressure pump is installed at the rear of the box body with its suction end located inside the inner cavity. The rear of the box body has symmetrically opened sewage outlets and sludge collection outlets. The sewage outlets are connected to a sewage storage tank, and the sludge collection outlets are connected to a sludge collection tank.

[0007] The lifting mounting frame includes a vertical plate, a floating plate, and a hydraulic cylinder. The upper end of the vertical plate is fixed to the vehicle body by bolts. The floating plate is slidably mounted on the vertical plate. The hydraulic cylinder is mounted on the top of the vertical plate and its power output end is connected to the floating plate.

[0008] The oscillating dust-generating assembly includes a driver, a resetter, a horizontal shaft, and cleaning brushes. The driver and resetter are symmetrically installed on both sides of the housing. The two ends of the horizontal shaft are movably inserted into the driver and resetter. The cleaning brushes are arranged in several groups and fixed to the bottom of the horizontal shaft.

[0009] The sludge separation mechanism includes a filter plate, a guide plate, a scraper, a screw, a drive motor, an electric push rod, and a sludge pusher. The filter plate is located on the inner cavity. The guide plate is installed at one end of the filter plate and its inner end is connected to the sludge collection port. The scraper is slidably disposed on the filter plate and its two ends are slidably connected to the filter plate. The screw is threaded through the scraper. The drive motor is installed on the housing and its power output end is connected to the screw. The electric push rod is installed at one end of the scraper and its power output end is connected to the sludge pusher. The sludge pusher is located on the filter plate.

[0010] The dust suppression plate includes a water inlet pipe, a valve, a water guide plate, and nozzles. The valve is installed on the water inlet pipe. One end of the water inlet pipe is connected to the vehicle-mounted water tank and the other end is connected to the water guide plate. The nozzles are arranged in several groups and are evenly installed on the water guide plate.

[0011] The visualization components include cameras and distance sensors. The cameras are arranged in three groups and evenly installed on the outer end of the box. The distance sensors are arranged in four groups and evenly installed on both ends of the suction hood, the sewage storage box, and the waste collection box.

[0012] In a preferred embodiment of the present invention, the height of the sewage outlet is lower than the height of the sludge collection outlet, and the sludge collection outlet is at the same height as the filter plate.

[0013] In a preferred embodiment of the present invention, the driver includes a housing and a servo motor built into the housing. A rotating disk is installed at the power output end of the servo motor, and an actuating block is fixed to the edge of the rotating disk. The actuating block has a fan-shaped structure and one end is narrower than the other end.

[0014] In a preferred embodiment of the present invention, the resetter includes a housing and a reset spring built into the housing, the end of the reset spring being connected to a horizontal axis.

[0015] In a preferred embodiment of the present invention, the filter plate includes an outer frame and several sets of rods built into the outer frame, with a water guiding cavity formed between two adjacent sets of the rods.

[0016] In a preferred embodiment of the present invention, the scraper has several sets of slots evenly distributed at its bottom and a threaded opening in the middle, and the rod body is placed inside the slots.

[0017] In a preferred embodiment of the present invention, the sludge pusher has a plate-like structure and its width is equal to the width of the sludge collection port.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention designs a vehicle-mounted negative pressure cleaning device for the coordinated removal of road dust and dirt. The device includes a negative pressure suction box, a lifting mounting frame, a swing-type dust-raising component, a wastewater separation mechanism, a wastewater storage tank, a waste collection tank, and a dust-suppressing plate. The device is installed at the front of a road cleaning vehicle. During use, the height of the device can be adjusted via the lifting mounting frame. In the road cleaning process, the swing-type dust-raising component first acts on the road surface to sweep and disperse dust and dirt. Then, the negative pressure suction box suctions the road dirt under negative pressure. The dust-suppressing plate above suppresses the incoming dust and dirt. The wastewater and waste are separated by the wastewater storage tank and waste collection tank, achieving differentiated storage. Furthermore, a visualization component is installed at the outer end of the negative pressure suction box, allowing observation of the road dust and dirt levels and adjustment of the negative pressure pump power as needed for better dirt removal.

[0020] 2. The vehicle-mounted negative pressure cleaning equipment designed in this invention can perform dynamic visual observation, adjustable negative pressure suction, and separation and storage of dirt on the road, greatly improving the effect of road cleaning. Attached Figure Description

[0021] Figure 1 This is an overall structural diagram of the present invention;

[0022] Figure 2 This is a structural diagram of the oscillating dust-generating component described in this invention;

[0023] Figure 3 This is a structural diagram of the waste separation mechanism described in this invention;

[0024] Figure 4 This is a structural diagram of the scraper described in this invention;

[0025] Figure 5 This is a structural diagram of the dust suppression plate of the present invention.

[0026] In the diagram: 1. Controller; 2. Housing; 3. Suction hood; 4. Negative pressure pump; 5. Inner cavity; 6. Sewage outlet; 7. Sewage collection outlet; 8. Vertical plate; 9. Floating plate; 10. Hydraulic cylinder; 11. Driver; 12. Resetter; 13. Horizontal axis; 14. Cleaning brush; 15. Filter plate; 16. Sludge guide plate; 17. Scraper; 18. Screw; 19. Drive motor; 20. Electric push rod; 21. Sludge pusher; 22. Inlet pipe; 23. Valve; 24. Water guide plate; 25. Nozzle; 26. Camera; 27. Distance sensor; 28. Housing; 29. ​​Servo motor; 30. Rotating disk; 31. Actuating block; 32. Housing; 33. Reset spring; 34. Outer frame; 35. Rod; 36. Water cavity; 37. Bayonet; 38. Threaded port; 39. Sewage storage tank; 40. Waste collection tank. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figure 1-5This invention provides a technical solution: a negative pressure cleaning device for the coordinated removal of road dust and dirt, comprising a negative pressure suction box, a lifting mounting frame, a swinging dust-generating component, a dirt-separating mechanism, a wastewater storage tank 39, a dirt collection tank 40, and dust-suppressing plates. The negative pressure suction box is installed at the front end of a road cleaning vehicle via four sets of lifting mounting frames. The swinging dust-generating component is installed at the bottom of the front end of the negative pressure suction box. The dirt-separating mechanism is built into the interior of the negative pressure suction box. The wastewater storage tank 39 and the dirt collection tank 40 are symmetrically installed at the rear of the negative pressure suction box. Two sets of dust-suppressing plates are symmetrically installed in the middle of the negative pressure suction box. The front end of the negative pressure suction box is also equipped with a visualization component, which is connected to a controller 1 via wiring. The controller 1 is installed inside the road cleaning vehicle.

[0029] The negative pressure suction box includes a box body 2, a suction hood 3, and a negative pressure pump 4. The box body 2 has an inner cavity 5. The suction hood 3 is installed at the lower right corner of the box body 2. The negative pressure pump 4 is installed at the tail of the box body 2 and the suction end is located in the inner cavity 5. The tail of the box body 2 is symmetrically provided with a sewage outlet 6 and a sludge collection outlet 7. The sewage outlet 6 is connected to the sewage storage tank 39, and the sludge collection outlet 7 is connected to the sludge collection tank 40. By using the negative pressure suction of the negative pressure pump 4, a negative pressure is formed inside the box body 2, and the dust and dirt raised on the ground are sucked out through the suction hood 3.

[0030] The lifting mounting frame includes a vertical plate 8, a floating plate 9, and a hydraulic cylinder 10. The upper end of the vertical plate 8 is fixed to the vehicle body by bolts. The floating plate 9 is slidably set on the vertical plate 8. The hydraulic cylinder 10 is installed on the top of the vertical plate 8 and its power output end is connected to the floating plate 9. The hydraulic cylinder 10 pushes the floating plate 9 to move longitudinally, which can adjust the height of the negative pressure cleaning equipment.

[0031] The oscillating dust-suppressing assembly includes a driver 11, a resetter 12, a horizontal shaft 13, and cleaning brushes 14. The driver 11 and the resetter 12 are symmetrically installed on both sides of the housing 2. The two ends of the horizontal shaft 13 are movably inserted into the driver 11 and the resetter 12. The cleaning brushes 14 are arranged in several groups and fixed to the bottom of the horizontal shaft 13. The servo motor 29 drives the rotating disk 30 to rotate. During the rotation of the rotating disk 30, the actuating block 31 rotates. The actuating block 31 acts intermittently on the horizontal shaft 13 in conjunction with the reset spring 33 to realize the left and right oscillation of the horizontal shaft 13. Then, the cleaning brushes 14 clean the ground and suppress dust, which is convenient for negative pressure suction.

[0032] The waste separation mechanism includes a filter plate 15, a guide plate 16, a scraper 17, a screw 18, a drive motor 19, an electric push rod 20, and a pusher plate 21. The filter plate 15 is located on the inner cavity 5. The guide plate 16 is installed at one end of the filter plate 15 and its inner end is connected to the waste collection port 7. The scraper 17 is slidably disposed on the filter plate 15 and its two ends are slidably connected to the filter plate 15. The screw 18 is threaded through the scraper 17. The drive motor 19 is installed on the housing 2 and its power output end is connected to the screw 18. The electric push rod 20 is installed on the scraper 17. One end of the motor is connected to the push plate 21, which is located on the filter plate 15. The water after dust settling is placed on the filter plate 15, and the sewage and fixed garbage are separated by the filter plate 15. The drive motor 19 drives the screw 18 to rotate. During the rotation, the screw 18 drives the scraper 17 to move laterally along the filter plate 15 and concentrates the dirt at the guide plate 16. At this time, the electric push rod 20 pushes the push plate 21 to move and guides the dirt to the guide plate 16 and into the waste collection box 40 for collection.

[0033] The dust suppression plate includes a water inlet pipe 22, a valve 23, a water guide plate 24, and nozzles 25. The valve 23 is installed on the water inlet pipe 22. One end of the water inlet pipe 22 is connected to the vehicle's water tank and a water pump is provided at the connection point. The other end is connected to the water guide plate 24. The nozzles 25 are divided into several groups and evenly installed on the water guide plate 24. Water from the vehicle's water tank is introduced into the water guide plate 24 through the water inlet pipe 22 and sprayed out through the nozzles 25. The water sprayed from the top can suppress dust from the dirt that enters, and the water sprayed from the bottom can clean the ground.

[0034] The visualization components include cameras 26 and distance sensors 27. The cameras 26 are arranged in three groups and evenly installed on the outer end of the housing 2. The distance sensors 27 are arranged in four groups and evenly installed on both ends of the suction hood 3, the sewage storage tank 39, and the waste collection tank 40. The cleaning status of the ground can be visually observed through the cameras 26, and the height of the suction hood 3, the sewage storage tank 39 and the ground can be measured by the distance sensors 27. The data is then transmitted to the controller 1, and the staff can adjust the height of the negative pressure cleaning equipment from inside the vehicle using the lifting mounting frame.

[0035] Further improvements, such as Figure 3 As shown, the height of sewage outlet 6 is lower than the height of sewage collection outlet 7, and sewage collection outlet 7 is at the same height as filter plate 15. This design allows for the diversion and treatment of dirt drawn in by negative pressure.

[0036] Further improvements, such as Figure 2As shown, the driver 11 includes a housing 28 and a servo motor 29 built into the housing 28. A rotating disk 30 is installed at the power output end of the servo motor 29. A toggle block 31 is fixed on the edge of the rotating disk 30. The toggle block 31 has a fan-shaped structure and one end is narrower than the other end. The servo motor 29 drives the rotating disk 30 to rotate. During the rotation, the rotating disk 30 drives the toggle block 31 to rotate. The toggle block 31 acts intermittently on the horizontal axis 13 in conjunction with the return spring 33 to realize the left and right swing of the horizontal axis 13. Then, the cleaning brush 14 sweeps and dusts the ground, which is convenient for negative pressure suction.

[0037] Further improvements, such as Figure 2 As shown, the resetter 12 includes a housing 32 and a reset spring 33 built into the housing 32. The end of the reset spring 33 is connected to the horizontal shaft 13, and the horizontal shaft 13 can be reset by the reset spring 33.

[0038] Further improvements, such as Figure 3 As shown, the filter plate 15 includes an outer frame 34 and several sets of rods 35 built into the outer frame 34. A water guiding cavity 36 is formed between two adjacent sets of rods 35. The filter plate 15 separates and treats sewage and solid dirt.

[0039] Further improvements, such as Figure 4 As shown, the bottom of the scraper 17 is evenly provided with several sets of slots 37 and the middle is provided with a threaded opening 38. The rod 35 is built into the slots 37. By moving the scraper 17, the residue on the filter plate 15 can be moved and guided to the left side of the filter plate 15.

[0040] Specifically, the push plate 21 has a plate-like structure and its width is equal to the width of the collection port 7. By moving the push plate 21, the collected dirt can be pushed and introduced into the collection port 7.

[0041] In use: When the road cleaning vehicle cleans the road, it first uses distance sensor 27 to measure the height of the suction hood 3, wastewater storage tank 39, and the ground, transmitting the information to controller 1. Workers inside the vehicle can adjust the height of the negative pressure cleaning equipment via the lifting mounting bracket to maintain a certain height between the suction hood 3, wastewater storage tank 39, and the ground, preventing collisions. Camera 26 allows for visual observation of the ground's cleanliness. When there is a lot of dirt on the road surface, the power of the negative pressure pump 4 is increased, and vice versa. Then, the servo motor 29 drives the rotating disk 30 to rotate. During rotation, the rotating disk 30 drives the actuating block 31 to rotate. The actuating block 31 intermittently acts on the horizontal axis 13, cooperating with the return spring 33 to achieve left and right swinging of the horizontal axis 13. This, in turn, uses cleaning brush 14 to sweep and remove dust from the ground, while the negative pressure pump 4... The negative pressure suction creates a negative pressure inside the box 2, and the suction hood 3 sucks up the dust and dirt raised on the ground. Water from the vehicle's water tank is introduced into the guide plate 24 through the water inlet pipe 22 and sprayed out through the nozzle 25. The water sprayed from above can suppress the dust entering the dirt, while the water sprayed from below can clean the ground. The water after dust suppression is placed on the filter plate 15, and the filter plate 15 separates the sewage from the fixed garbage. The drive motor 19 drives the screw 18 to rotate. During the rotation of the screw 18, the scraper 17 moves laterally along the filter plate 15 and concentrates the dirt at the guide plate 16. At this time, the electric push rod 20 pushes the push plate 21 to move, and the sewage is guided to the guide plate 16 and enters the sewage collection box 40 for collection. The sewage is guided into the sewage storage box 39, thus completing the differentiated collection and treatment of road dirt.

[0042] In the description of this invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0043] Furthermore, the terms “first,” “second,” “third,” and “fourth” 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. Thus, a feature defined as “first,” “second,” “third,” or “fourth” may explicitly or implicitly include at least one of those features.

[0044] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A negative pressure cleaning device for the synergistic removal of road dust and dirt, characterized in that: The system includes a negative pressure suction box, a lifting mounting frame, a swing dust-generating component, a waste separation mechanism, a wastewater storage tank (39), a waste collection tank (40), and a dust-suppressing plate. The negative pressure suction box is installed at the front end of the road cleaning vehicle via four sets of lifting mounting frames. The swing dust-generating component is installed at the bottom of the front end of the negative pressure suction box. The waste separation mechanism is built into the inside of the negative pressure suction box. The wastewater storage tank (39) and the waste collection tank (40) are symmetrically installed at the rear end of the negative pressure suction box. The dust-suppressing plate is divided into two sets and symmetrically installed in the middle of the negative pressure suction box. The front end of the negative pressure suction box is also equipped with a visualization component. The visualization component is connected to a controller (1) via a wire. The controller (1) is installed inside the road cleaning vehicle. The negative pressure suction box includes a box body (2), a suction hood (3) and a negative pressure pump (4). The box body (2) has an inner cavity (5). The suction hood (3) is installed at the lower right corner of the box body (2). The negative pressure pump (4) is installed at the tail of the box body (2) and the suction end is located in the inner cavity (5). The tail of the box body (2) is symmetrically provided with a sewage outlet (6) and a sludge collection outlet (7). The sewage outlet (6) is connected to the sewage storage tank (39), and the sludge collection outlet (7) is connected to the sludge collection tank (40). The lifting mounting frame includes a vertical plate (8), a floating plate (9), and a hydraulic cylinder (10). The upper end of the vertical plate (8) is fixed to the vehicle body by bolts. The floating plate (9) is slidably disposed on the vertical plate (8). The hydraulic cylinder (10) is installed on the top of the vertical plate (8) and its power output end is connected to the floating plate (9). The oscillating dust-generating assembly includes a driver (11), a resetter (12), a horizontal shaft (13), and a cleaning brush (14). The driver (11) and the resetter (12) are symmetrically installed on both sides of the housing (2). The two ends of the horizontal shaft (13) are movably inserted into the driver (11) and the resetter (12). The cleaning brush (14) is divided into several groups and fixed to the bottom of the horizontal shaft (13). The sludge separation mechanism includes a filter plate (15), a guide plate (16), a scraper (17), a screw (18), a drive motor (19), an electric push rod (20), and a sludge pusher (21). The filter plate (15) is located on the inner cavity (5). The guide plate (16) is installed on one end of the filter plate (15) and its inner end is connected to the sludge collection port (7). The scraper (17) is slidably disposed on the filter plate (15) and its two ends are slidably connected to the filter plate (15). The screw (18) is threaded through the scraper (17). The drive motor (19) is installed on the housing (2) and its power output end is connected to the screw (18). The electric push rod (20) is installed on one end of the scraper (17) and its power output end is connected to the sludge pusher (21). The sludge pusher (21) is located on the filter plate (15). The dust suppression plate includes a water inlet pipe (22), a valve (23), a water guide plate (24), and a nozzle (25). The valve (23) is installed on the water inlet pipe (22). One end of the water inlet pipe (22) is connected to the vehicle water tank and the other end is connected to the water guide plate (24). The nozzles (25) are arranged in several groups and are evenly installed on the water guide plate (24). The visualization components include a camera (26) and a distance sensor (27). The camera (26) is divided into three groups and evenly installed on the outer end of the box (2). The distance sensor (27) is divided into four groups and evenly installed on both ends of the suction hood (3), the sewage storage box (39), and the waste collection box (40).

2. The negative pressure cleaning equipment for the synergistic removal of road dust and dirt according to claim 1, characterized in that: The height of the sewage outlet (6) is lower than the height of the sewage collection outlet (7), and the sewage collection outlet (7) is at the same height as the filter plate (15).

3. The negative pressure cleaning equipment for the synergistic removal of road dust and dirt according to claim 1, characterized in that: The driver (11) includes a housing (28) and a servo motor (29) built into the housing (28). A rotating disk (30) is installed at the power output end of the servo motor (29). A toggle block (31) is fixed on the edge of the rotating disk (30). The toggle block (31) has a fan-shaped structure and one end is narrower than the other end.

4. The negative pressure cleaning equipment for synergistic removal of road dust and dirt according to claim 1, characterized in that: The resetter (12) includes a housing (32) and a reset spring (33) built into the housing (32), the end of which is connected to the horizontal shaft (13).

5. The negative pressure cleaning equipment for synergistic removal of road dust and dirt according to claim 2, characterized in that: The filter plate (15) includes an outer frame (34) and several sets of rods (35) built inside the outer frame (34), with a water guiding cavity (36) formed between two adjacent sets of rods (35).

6. The negative pressure cleaning equipment for synergistic removal of road dust and dirt according to claim 5, characterized in that: The scraper (17) has several sets of slots (37) evenly distributed at the bottom and a threaded opening (38) in the middle. The rod (35) is built into the slots (37).

7. The negative pressure cleaning equipment for synergistic removal of road dust and dirt according to claim 2, characterized in that: The push plate (21) has a plate-like structure and its width is equal to the width of the sewage collection port (7).

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