A dust and sewage suction vehicle

Abstract

The utility model relates to dust and sewage suction vehicle's technical field, especially a kind of dust and sewage suction vehicle, it can realize the collection of dust and sewage respectively, extend water absorption effect to dust, improve working time, good practicality;Including vehicle, collecting sewage tank and air extractor;Still including vertical baffle, three-way valve one, vertical pipe one, three-way valve two, connecting pipe, vertical pipe two, dust suction pipe and dust suction hopper, vertical baffle is set in the chamber middle part of collecting sewage tank, the output end of vertical pipe one is connected with the first passageway of three-way valve one, the input end of vertical pipe one is inserted into the middle upper portion of sewage suction chamber, one end of connecting pipe is connected with the second passageway of three-way valve one, the other end of connecting pipe is connected with the first passageway of three-way valve two, the upper end of vertical pipe two is connected with the second passageway of three-way valve two, the lower end of vertical pipe two is connected with the dust suction chamber bottom of collecting sewage tank, the output end of dust suction pipe is connected with the third passageway of three-way valve two, the middle part of dust suction pipe is provided with '' several '' character shape protruding portion, dust suction pipe installs dust suction hopper.

Description

Technical Field

[0001] This utility model relates to the technical field of vacuum cleaners and sewage suction vehicles, and in particular to a vacuum cleaner and sewage suction vehicle. Background Technology

[0002] In daily work and life, vacuum cleaners are commonly used to clean dust, sewage, and other garbage from the ground. Chinese invention patent CN216221311U discloses a mobile vacuum cleaner, which includes a dust suction cup, a gravity collector, a negative pressure fan, and a pressure relief nozzle, all fixed to the vehicle body and connected in sequence. The dust suction cup, gravity collector, negative pressure fan, and pressure relief nozzle are all connected by flexible hoses. The pressure relief nozzle is fixed inside the dust collection tank with its opening facing downwards, and its lower end is below the liquid level in the liquid chamber of the dust collection tank. The gravity collector is located on the other side of the dust collection tank and is separated from the liquid chamber. The top of the gravity collector's cavity has an air intake port connected to the dust suction cup and a pressure discharge port connected to the air inlet of the negative pressure fan. The pressure discharge port has a square baffle cylinder located inside the gravity collector's cavity. A pull-out collection box is located at the bottom of the gravity collector's cavity. This vacuum cleaner truck effectively filters dust by absorbing it with water. The equipment is not easily clogged and is easy to clean.

[0003] However, the collector of the aforementioned vacuum and sewage suction truck only has one chamber, which causes dust, sewage, sludge, etc. to be collected in the chamber. This causes the water used for vacuuming to get dirty quickly and even form mud, resulting in a decrease in vacuuming efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a vacuum cleaner truck that can collect dust and sewage separately, prolong the absorption effect of water on dust, increase working time, and has good practicality.

[0005] A dust and sewage suction truck of the utility model includes a carrier vehicle, a sewage collection tank and an air extractor. The sewage collection tank is installed on the carrier vehicle. A chamber is arranged inside the sewage collection tank, and the air extractor is installed on the sewage collection tank. It also includes a vertical partition board, a first three-way valve, a first vertical pipe, a second three-way valve, a connecting pipe, a second vertical pipe, a dust suction pipe and a dust suction hopper. A vertical partition board is arranged in the middle of the chamber of the sewage collection tank. There is a gap between the upper end of the vertical partition board and the top wall of the sewage collection tank. The vertical partition board divides the chamber of the sewage collection tank into a dust suction chamber and a sewage suction chamber. The air extraction port of the air extractor extends into the top of the dust suction chamber. The output end of the first vertical pipe is connected to the first channel of the first three-way valve, and the input end of the first vertical pipe extends into the upper middle part of the sewage suction chamber. One end of the connecting pipe is connected to the second channel of the first three-way valve, and the other end of the connecting pipe is connected to the first channel of the second three-way valve. The upper end of the second vertical pipe is connected to the second channel of the second three-way valve, and the lower end of the second vertical pipe is connected to the bottom of the dust suction chamber of the sewage collection tank. The output end of the dust suction pipe is connected to the third channel of the second three-way valve. A "zigzag" convex part is arranged in the middle of the dust suction pipe. The top of the convex part is higher than the upper end of the second vertical pipe. The input end of the dust suction pipe is equipped with a dust suction hopper. Water is added to the bottom of the dust suction chamber of the sewage collection tank, and the water level is lower than the top of the convex part of the dust suction pipe. During operation, the carrier vehicle drives the sewage collection tank to move, and the dust suction hopper is slightly higher than the ground. The air extractor operates to extract the air in the chamber of the sewage collection tank. When dust needs to be sucked, the first three-way valve closes all channels, and the second three-way valve connects the second channel and the third channel. Since the air pressure in the chamber of the sewage collection tank is lower than the outside, the outside air enters the dust suction chamber of the sewage collection tank through the dust suction hopper, the dust suction pipe, the second three-way valve and the second vertical pipe. Dust follows the air and enters the bottom of the dust suction chamber of the sewage collection tank through the dust suction hopper, the dust suction pipe, the second three-way valve and the second vertical pipe. During this process, the dust fully contacts the water at the bottom of the dust suction pipe and the dust suction chamber of the sewage collection tank, so that the dust is absorbed into the water. When sewage needs to be sucked, the second three-way valve connects the first channel and the third channel and closes the second channel, and the first three-way valve connects the first channel and the second channel. At this time, the outside air enters the sewage suction chamber of the sewage collection tank through the dust suction hopper, the dust suction pipe, the second three-way valve, the connecting pipe, the first three-way valve and the first vertical pipe. During this process, the sewage is sucked into the sewage suction chamber of the sewage collection tank. Since the input end of the first vertical pipe is located in the upper middle part of the sewage suction chamber of the sewage collection tank, it avoids the backflow of sewage through the first vertical pipe. Compared with the prior art, it realizes the separate collection of dust and sewage, etc., prolongs the absorption effect of water on dust, improves the working duration, and has good practicability.

[0006] Preferably, it further includes a corrugated pipe and a push cylinder. The input end of the dust suction pipe is provided with a corrugated pipe. The fixed end of the push cylinder is installed on the carrier vehicle, and the piston rod of the push cylinder is connected to the dust suction hopper. The extension or contraction of the piston rod of the push cylinder drives the dust suction hopper to lift and lower, which is convenient for the dust suction hopper to suck dust or be stored. During the lifting and lowering process of the dust suction hopper, the corrugated pipe contracts adaptively, and it has good practicability.

[0007] Preferably, it also includes a water inlet pipe and an overflow pipe. The water inlet pipe is installed on the outer wall of the sludge collection tank, and the output end of the water inlet pipe is connected to the dust collection chamber of the sludge collection tank. The overflow pipe is installed on the protrusion of the dust collection pipe. Water is added to the bottom of the dust collection chamber of the sludge collection tank through the water inlet pipe. When the water level reaches the specified height, the water overflows and is discharged through the overflow pipe, which improves the convenience and accuracy of water replenishment.

[0008] Preferably, it also includes a float plate and an air filter plate. The float plate floats on the water surface in the dust collection chamber of the sludge collection box and has multiple air vents. The air filter plate is installed in the gap between the vertical partition and the top of the sludge collection box and is filled with deodorizing material. The float plate floats on the water surface in the dust collection chamber of the sludge collection box to reduce water surface ripples. The float plate filters the air coming out of the water to improve the dust collection effect. The air filter plate deodorizes and filters the air drawn out of the dust collection chamber of the sludge collection box to reduce pollution to the outside world.

[0009] Preferably, it also includes a sludge pipe and a sewage pipe. One end of the sludge pipe is connected to the third channel of the three-way valve one, and the sewage pipe is installed on the sludge collection box and connected to the bottom of the sludge suction chamber of the sludge collection box. The three-way valve two closes all channels, and the three-way valve one connects the first channel and the third channel, so that sludge from the outside can be directly drawn out through the sludge pipe, the three-way valve one, and the vertical pipe one, realizing the suction of high-viscosity sludge. Opening the sewage pipe can discharge the sludge in the suction chamber of the sludge collection box. The second channel of the three-way valve one is connected to the third channel, and the three-way valve two is connected to the first channel and the second channel, so that the sewage in the suction chamber of the sludge collection box is discharged through the vertical pipe two, the three-way valve two, the connecting pipe, the three-way valve one, and the sludge pipe, realizing efficient sewage discharge and good practicality.

[0010] Preferably, it also includes a blocking plate, a perforated push plate, a rotating shaft, and a top rod. The blocking plate is attached to the upper end of the second vertical pipe. A vertical rod is installed at the bottom of the blocking plate, extending into the interior of the second vertical pipe. A perforated push plate is installed at the bottom end of the vertical rod. The rotating shaft is rotatably mounted on the side wall of the second vertical pipe. A handwheel is installed at the outer end of the rotating shaft, and a top rod is installed at the inner end of the rotating shaft. During the dust collection process, the airflow pushes the blocking plate up, opening the upper end of the second vertical pipe and allowing dust-laden air to enter the water. After the dust collection is completed, the blocking plate sinks down to close the upper end of the second vertical pipe, preventing dust in the water from settling into the second vertical pipe. When it is necessary to discharge the wastewater in the dust collection chamber of the sludge collection box, the rotating shaft is rotated, causing the rotating shaft to drive the top rod to rotate. The top rod pushes the perforated push plate to raise the blocking plate, allowing the wastewater in the sludge collection box to be discharged through the second vertical pipe. This design is highly practical.

[0011] Preferably, it also includes a water supply tank and a nozzle. The water supply tank is installed on the sludge collection tank, and the nozzle is installed at the water outlet of the water supply tank. The nozzle is located at the air outlet of the exhaust fan. The water supply tank delivers water to the nozzle, and the nozzle atomizes the water before outputting it. When the exhaust fan extracts air, the airflow generated impacts the water output by the nozzle at high speed, blowing the water into a water mist that diffuses in all directions to achieve the cooling and humidifying effect.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Water is added to the bottom of the dust collection chamber of the sludge collection box, and the water level is lower than the top of the protrusion of the dust collection pipe. During operation, the vehicle moves the sludge collection box, with the dust collection bucket slightly higher than the ground. The air pump runs, extracting the air from the chamber of the sludge collection box. When vacuuming is needed, three-way valve one closes all channels, and three-way valve two connects the second and third channels. Because the air pressure inside the chamber of the sludge collection box is lower than that outside, outside air is input into the dust collection chamber of the sludge collection box through the dust collection bucket, dust collection pipe, three-way valve two, and vertical pipe two. Dust follows the air through the dust collection bucket, dust collection pipe, three-way valve two, and vertical pipe two into the bottom of the dust collection chamber of the sludge collection box. During this process, dust and... The suction pipe and the water at the bottom of the suction chamber of the sludge collection box are in full contact, so that the dust is absorbed into the water. When it is necessary to suction the sewage, the three-way valve two connects the first and third channels and closes the second channel, while the three-way valve one connects the first and second channels. At this time, the outside air is input into the sludge collection box through the suction hopper, suction pipe, three-way valve two, connecting pipe, three-way valve one, and vertical pipe one. During this process, sewage is sucked into the sludge collection box. Since the input end of vertical pipe one is located in the upper part of the sludge collection box, sewage is prevented from flowing back through vertical pipe one. Compared with the existing technology, this technology can collect dust and sewage separately, prolong the absorption effect of water on dust, improve working time, and has good practicality. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front sectional view of the present invention;

[0015] Figure 3 This is a schematic diagram of the dust collection chamber of the sludge collection box in a semi-sectional state;

[0016] Figure 4 This is a schematic diagram of the sludge suction chamber of the sludge collection box in a semi-sectional state;

[0017] Figure 5 yes Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0018] The attached diagram is labeled as follows: 1. Carrier vehicle; 2. Sludge collection tank; 3. Air extractor; 4. Vertical partition; 5. Three-way valve one; 6. Vertical pipe one; 7. Three-way valve two; 8. Connecting pipe; 9. Vertical pipe two; 10. Suction pipe; 11. Suction hopper; 12. Corrugated pipe; 13. Push cylinder; 14. Water inlet pipe; 15. Overflow pipe; 16. Float plate; 17. Air filter plate; 18. Sludge pipe; 19. Sewage discharge pipe; 20. Blocking plate; 21. Perforated push plate; 22. Rotating shaft; 23. Push rod; 24. Water supply tank; 25. Nozzle. Detailed Implementation

[0019] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive. Embodiment 1

[0020] As Figures 1 to 4 shown, a dust and sewage suction truck includes a carrier vehicle 1, a sewage collection tank 2 and an air extractor 3. The sewage collection tank 2 is installed on the carrier vehicle 1. A chamber is provided inside the sewage collection tank 2, and the air extractor 3 is installed on the sewage collection tank 2; it also includes a vertical partition 4, a first three-way valve 5, a first vertical pipe 6, a second three-way valve 7, a connecting pipe 8, a second vertical pipe 9, a dust suction pipe 10 and a dust suction hopper 11. A vertical partition 4 is provided in the middle of the chamber of the sewage collection tank 2. A gap is provided between the upper end of the vertical partition 4 and the top wall of the sewage collection tank 2. The vertical partition 4 divides the chamber of the sewage collection tank 2 into a dust suction chamber and a sewage suction chamber. The air extraction port of the air extractor 3 extends into the top of the dust suction chamber. The output end of the first vertical pipe 6 is connected to the first channel of the first three-way valve 5, and the input end of the first vertical pipe 6 extends into the upper middle part of the sewage suction chamber. One end of the connecting pipe 8 is connected to the second channel of the first three-way valve 5, and the other end of the connecting pipe 8 is connected to the first channel of the second three-way valve 7. The upper end of the second vertical pipe 9 is connected to the second channel of the second three-way valve 7, and the lower end of the second vertical pipe 9 is connected to the bottom of the dust suction chamber of the sewage collection tank 2. The output end of the dust suction pipe 10 is connected to the third channel of the second three-way valve 7. A "U" - shaped convex part is provided in the middle of the dust suction pipe 10. The top of the convex part is higher than the upper end of the second vertical pipe 9. The input end of the dust suction pipe 10 is installed with a dust suction hopper 11; it also includes a corrugated pipe 12 and a push cylinder 13. A corrugated pipe 12 is provided at the input end of the dust suction pipe 10. The fixed end of the push cylinder 13 is installed on the carrier vehicle 1, and the piston rod of the push cylinder 13 is connected to the dust suction hopper 11; it also includes a water adding pipe 14 and an overflow pipe 15. The water adding pipe 14 is installed on the outer wall of the sewage collection tank 2, and the output end of the water adding pipe 14 is communicated with the dust suction chamber of the sewage collection tank 2. The overflow pipe 15 is installed on the convex part of the dust suction pipe 10; it also includes a floating plate 16 and an air filter plate 17. The floating plate 16 floats on the water surface in the dust suction chamber of the sewage collection tank 2. A plurality of ventilation filter holes are provided on the floating plate 16. The air filter plate 17 is installed in the gap between the vertical partition 4 and the top of the sewage collection tank 2, and deodorizing materials are filled in the air filter plate 17.

[0021] Water is added to the bottom of the dust collection chamber of the sludge collection box 2 through the water inlet pipe 14. When the water level reaches the specified height, the water overflows through the overflow pipe 15, making the water level lower than the top of the protrusion of the dust collection pipe 10. During operation, the carrier 1 moves the sludge collection box 2, and the piston rod of the push cylinder 13 extends or retracts, causing the dust collection hopper 11 to rise or fall, facilitating dust collection or storage. During the rising and falling of the dust collection hopper 11, the corrugated pipe 12 adaptively retracts, making the dust collection hopper 11 slightly higher than the ground. The air extractor 3 runs, drawing out the dust. When air is drawn out of the chamber of the sludge collection box 2, and vacuuming is required, three-way valve 5 closes all channels, and three-way valve 7 connects the second and third channels. Because the air pressure inside the chamber of the sludge collection box 2 is lower than the outside air pressure, outside air is drawn into the vacuum chamber of the sludge collection box 2 through the suction hopper 11, suction pipe 10, three-way valve 7, and vertical pipe 9. Dust follows the air through the suction hopper 11, suction pipe 10, three-way valve 7, and vertical pipe 9 into the bottom of the vacuum chamber of the sludge collection box 2. During this process… Dust comes into full contact with the water at the bottom of the suction chamber of the suction pipe 10 and the sludge collection box 2, thus absorbing the dust into the water. The float 16 floats on the water surface of the suction chamber of the sludge collection box 2, reducing water surface ripples. The float 16 filters the air escaping from the water, improving the suction effect. When it is necessary to suction wastewater, the three-way valve 2 7 connects the first and third channels and closes the second channel, while the three-way valve 1 5 connects the first and second channels. At this time, outside air passes through the suction hopper 11 and the suction pipe 1 0. Three-way valve 2, 7. Connecting pipe 8. Three-way valve 1, 5. Vertical pipe 1.6 are input into the suction chamber of the sludge collection tank 2. During this process, sewage is sucked into the suction chamber of the sludge collection tank 2. Since the input end of vertical pipe 1.6 is located in the upper part of the suction chamber of the sludge collection tank 2, sewage is prevented from flowing back through vertical pipe 1.6. Air filter plate 17 deodorizes and filters the air extracted from the suction chamber of the sludge collection tank 2, reducing pollution to the outside world. Compared with the existing technology, it realizes the separate collection of dust and sewage, and prolongs the absorption effect of water on dust. Example 2

[0022] like Figures 2 to 5 As shown, based on Embodiment 1, it also includes a sludge pipe 18 and a sewage pipe 19. One end of the sludge pipe 18 is connected to the third channel of the three-way valve 5. The sewage pipe 19 is installed on the sludge collection box 2 and is connected to the bottom of the suction chamber of the sludge collection box 2. It also includes a blocking plate 20, a perforated push plate 21, a rotating shaft 22 and a top rod 23. The blocking plate 20 is fastened to the upper end of the vertical pipe 9. A vertical rod is provided at the bottom of the blocking plate 20 and extends into the interior of the vertical pipe 9. The perforated push plate 21 is installed at the bottom end of the vertical rod. The rotating shaft 22 is rotatably installed on the side wall of the vertical pipe 9. A handwheel is provided at the outer end of the rotating shaft 22 and the top rod 23 is installed at the inner end of the rotating shaft 22.

[0023] During vacuuming, the airflow lifts the blocking plate 20, opening the upper port of the vertical pipe 2 9 and allowing dust-laden air to enter the water. After vacuuming, the blocking plate 20 sinks to close the upper port of the vertical pipe 2 9, preventing dust in the water from settling into the vertical pipe 2 9. The three-way valve 2 7 closes all channels, while the three-way valve 1 5 connects the first and third channels, allowing external sludge to be directly extracted through the sludge pipe 18, the three-way valve 1 5, and the vertical pipe 1 6, achieving the suction of high-viscosity sludge. Opening the drain pipe 19 allows... Sludge is discharged from the suction chamber of the sludge collection box 2; the second and third channels of the three-way valve 5 are connected, and the first and second channels are connected by the three-way valve 7, so that the sewage in the suction chamber of the sludge collection box 2 is discharged through the vertical pipe 2 9, the three-way valve 2 7, the connecting pipe 8, the three-way valve 5 and the sludge pipe 18. When it is necessary to discharge the sewage in the suction chamber of the sludge collection box 2, the rotating shaft 22 is rotated, so that the rotating shaft 22 drives the top rod 23 to rotate. The top rod 23 pushes the perforated push plate 21 to push the block plate 20 up. At this time, the sewage in the sludge collection box 2 can be discharged through the vertical pipe 2 9. Example 3

[0024] like Figures 1 to 4 As shown, based on Embodiment 1, it also includes a water supply tank 24 and a nozzle 25. The water supply tank 24 is installed on the sludge collection tank 2, and the nozzle 25 is installed at the water outlet of the water supply tank 24. The nozzle 25 is located at the air outlet of the exhaust fan 3. The water supply tank 24 delivers water to the nozzle 25, and the nozzle 25 atomizes the water and outputs it. When the exhaust fan 3 extracts air, the airflow generated impacts the water output by the nozzle 25 at high speed, blowing the water into water mist and spreading it in all directions to achieve the effect of cooling and humidifying.

[0025] like Figures 1 to 5As shown, this utility model discloses a vacuum cleaner truck. During operation, water is first added to the bottom of the dust collection chamber of the dust collection tank 2 through the water inlet pipe 14 until it overflows through the overflow pipe 15, causing the water level to be lower than the top of the protrusion of the suction pipe 10. During operation, the vehicle 1 moves the dust collection tank 2, the push cylinder 13 moves the suction bucket 11 slightly above the ground, and the air extractor 3 operates to extract air from the chamber of the dust collection tank 2. When vacuuming is needed, the three-way valve 5 closes all channels, and the three-way valve 7 connects the second and third channels. Because the dust collection... The air pressure inside the sludge tank 2 is lower than that outside. Therefore, outside air is introduced into the suction chamber of the sludge tank 2 through the suction hopper 11, suction pipe 10, three-way valve 2 7, and vertical pipe 2 9. Dust follows the air through the suction hopper 11, suction pipe 10, three-way valve 2 7, and vertical pipe 2 9 into the bottom of the suction chamber of the sludge tank 2. During this process, the dust comes into full contact with the water at the bottom of the suction chamber of the suction pipe 10 and the suction chamber of the sludge tank 2, thus absorbing the dust into the water. Then, when it is necessary to suction wastewater through the suction hopper 11, the three-way valve 2 7 opens the first channel. Connecting to the third channel and closing the second channel, the three-way valve 5 connects the first and second channels. At this time, outside air enters the suction chamber of the sludge collection box 2 through the suction hopper 11, suction pipe 10, three-way valve 7, connecting pipe 8, three-way valve 5, and vertical pipe 6. During this process, sewage is sucked into the suction chamber of the sludge collection box 2. Because the input end of vertical pipe 6 is located in the upper part of the suction chamber of the sludge collection box 2, sludge and sewage are prevented from flowing back through vertical pipe 6. When sludge needs to be absorbed, three-way valve 7 closes all channels. The first and third channels are connected by valve 5, allowing external sludge to be directly drawn through sludge pipe 18, three-way valve 5, and vertical pipe 6, thus achieving the suction of high-viscosity sludge. Finally, opening the drain pipe 19 can discharge the sludge from the suction chamber of the sludge collection box 2. The second and third channels of three-way valve 5 are connected, and the first and second channels are connected by three-way valve 7, allowing the wastewater in the suction chamber of the sludge collection box 2 to be discharged through vertical pipe 9, three-way valve 7, connecting pipe 8, three-way valve 5, and sludge pipe 18.

[0026] The main functions achieved by this utility model are:

[0027] 1. It can collect dust and sewage separately, prolonging the absorption effect of water on dust and increasing working time;

[0028] 2. The float plate 16 reduces water surface ripples and filters the air escaping from the water, improving the dust collection effect;

[0029] 3. The air filter plate 17 deodorizes and filters the air drawn from the suction chamber of the sludge collection box 2, reducing pollution to the outside world;

[0030] 4. It can diffuse water mist in all directions to achieve cooling and humidification effects.

[0031] The dust and sewage suction truck of this utility model uses common mechanical methods for installation, connection, or setting. Any method that can achieve the desired beneficial effect can be implemented. The vehicle body 1, sewage collection tank 2, air extractor 3, three-way valve 1 5, three-way valve 2 7, dust suction hopper 11, corrugated pipe 12, push cylinder 13, water inlet pipe 14, overflow pipe 15, float plate 16, air filter plate 17, water supply tank 24, and nozzle 25 are all commercially available. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0032] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A vacuum cleaner / sewage suction vehicle, comprising a carrier (1), a sludge collection tank (2), and an air extraction machine (3), wherein the sludge collection tank (2) is mounted on the carrier (1), the interior of the sludge collection tank (2) is provided with a chamber, and the air extraction machine (3) is mounted on the sludge collection tank (2); characterized in that, It further includes a vertical partition plate (4), a first three-way valve (5), a first vertical pipe (6), a second three-way valve (7), a connecting pipe (8), a second vertical pipe (9), a dust suction pipe (10) and a dust suction hopper (11). A vertical partition plate (4) is arranged in the middle of the chamber of the sewage collection tank (2). There is a gap between the upper end of the vertical partition plate (4) and the top wall of the sewage collection tank (2). The vertical partition plate (4) divides the chamber of the sewage collection tank (2) into a dust suction chamber and a sewage suction chamber. The air suction port of the air extractor (3) extends into the top of the dust suction chamber. The output end of the first vertical pipe (6) is connected to the first channel of the first three-way valve (5). The input end of the first vertical pipe (6) extends into the upper middle part of the sewage suction chamber. One end of the connecting pipe (8) is connected to the second channel of the first three-way valve (5). The other end of the connecting pipe (8) is connected to the first channel of the second three-way valve (7). The upper end of the second vertical pipe (9) is connected to the second channel of the second three-way valve (7). The lower end of the second vertical pipe (9) is connected to the bottom of the dust suction chamber of the sewage collection tank (2). The output end of the dust suction pipe (10) is connected to the third channel of the second three-way valve (7). A "V" - shaped convex part is arranged in the middle of the dust suction pipe (10). The top of the convex part is higher than the upper end of the second vertical pipe (9). The input end of the dust suction pipe (10) is equipped with a dust suction hopper (11).

2. The vacuum cleaner truck as described in claim 1, characterized in that, It further includes a corrugated pipe (12) and a push cylinder (13). The corrugated pipe (12) is arranged at the input end of the dust suction pipe (10). The fixed end of the push cylinder (13) is installed on the carrier vehicle (1). The piston rod of the push cylinder (13) is connected to the dust suction hopper (11).

3. A vacuum cleaner truck as described in claim 1, characterized in that, It further includes a water adding pipe (14) and an overflow pipe (15). The water adding pipe (14) is installed on the outer wall of the sewage collection tank (2). The output end of the water adding pipe (14) is communicated with the dust suction chamber of the sewage collection tank (2). The overflow pipe (15) is installed on the convex part of the dust suction pipe (10).

4. A vacuum cleaner truck as described in claim 1, characterized in that, It further includes a floating plate (16) and an air filter plate (17). The floating plate (16) floats on the water surface in the dust suction chamber of the sewage collection tank (2). Multiple ventilation filter holes are arranged on the floating plate (16). The air filter plate (17) is installed in the gap between the vertical partition plate (4) and the top of the sewage collection tank (2). The air filter plate (17) is filled with deodorizing materials.

5. A vacuum cleaner truck as described in claim 1, characterized in that, It further includes a sludge pipe (18) and a sewage discharge pipe (19). One end of the sludge pipe (18) is connected to the third channel of the first three-way valve (5). The sewage discharge pipe (19) is installed on the sewage collection tank (2). The sewage discharge pipe (19) is communicated with the bottom of the sewage suction chamber of the sewage collection tank (2).

6. A vacuum cleaner truck as described in claim 5, characterized in that, It further includes a plug plate (20), a porous push plate (21), a rotating shaft (22) and a push rod (23). The plug plate (20) covers the upper port of the second vertical pipe (9). A vertical rod is arranged at the bottom of the plug plate (20). The vertical rod extends into the interior of the second vertical pipe (9). The bottom end of the vertical rod is equipped with a porous push plate (21). The rotating shaft (22) is rotatably installed on the side wall of the second vertical pipe (9). A hand wheel is arranged at the outer end of the rotating shaft (22). The inner end of the rotating shaft (22) is equipped with a push rod (23).

7. A vacuum cleaner truck as described in claim 1, characterized in that, It further includes a water supply tank (24) and a spray head (25). The water supply tank (24) is installed on the sewage collection tank (2). The water outlet end of the water supply tank (24) is equipped with a spray head (25). The spray head (25) is located at the air outlet of the air extractor (3).

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