Sewage suction truck for municipal roads

Abstract

The invention relates to the technical field of municipal cleaning, and discloses a municipal road sewage suction truck which comprises a sewage suction truck body, universal wheels are installed at the four corners of the bottom of the sewage suction truck body, and a treatment box is fixed to the middle of the top of the sewage suction truck body; the sewage suction truck has an efficient solid-liquid separation function, water in sewage is directly squeezed out and separated on an operation site, separated solid sewage and liquid sewage can be respectively treated in a targeted mode, the efficiency of the whole treatment process is improved, the sewage suction truck further has a buffering function, and the service life of the sewage suction truck is prolonged. The suction-type sewer scavenger can buffer and protect parts on the suction-type sewer scavenger when collision occurs, has a sweeping and gathering function, can sweep and gather dirt around the suction-type sewer scavenger, enables the dirt to be concentrated near the suction-type sewer scavenger, is convenient to collect, can suck and purify harmful gas in the dirt collecting process, and is convenient to use. The working environment around the suction-type sewer scavenger is effectively improved, and the working comfort is improved.

Description

Technical Field

[0001] This invention relates to the field of municipal cleaning technology, specifically to a vacuum truck for municipal roads. Background Technology

[0002] With the acceleration of urbanization, municipal roads, as an important part of urban infrastructure, play a vital role in maintaining urban environmental sanitation, protecting residents' health, and enhancing the city's image.

[0003] For a long time, manual sweeping has been one of the main methods of cleaning municipal roads. Cleaning workers use simple tools such as brooms and shovels to sweep the roads. According to a search, an environmental sanitation cleaning device for municipal roads, application number: CN202222047434.X, only pumps the dirt on the road into the collection tank through the suction port. However, it cannot perform solid-liquid separation of the collected dirt. The dirt on the road is often a mixture of solid and liquid, such as garbage washed by rainwater, which may contain a large amount of sewage and solid waste. This makes it more troublesome for the staff to separate the dirt during subsequent treatment. Moreover, the dirt inside the collection tank will produce odor. The device cannot filter and purify the odor, making the cart operator the first direct inhaler of the odor, which affects the health of the staff. Summary of the Invention

[0004] The purpose of this invention is to provide a vacuum truck for municipal roads to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a municipal road vacuum truck, comprising a vacuum truck body, with casters installed at the four corners of the bottom of the vacuum truck body; a processing box fixed to the center of the top of the vacuum truck body; a control panel installed on one side of the back of the processing box; a suction pipe connected to the front of the processing box; first fixing plates bolted to the left and right sides of the front of the vacuum truck body; a first cylinder fixed to the front of the first fixing plates; a vacuum hood bolted to the bottom of the output shaft of the first cylinder, and the vacuum hood connected to one end of the suction pipe; a buffer structure fixed to the front of the vacuum hood; and a... The trolley body is equipped with a mounting shell, and a reciprocating structure is movably connected inside the mounting shell. Mounting frames are provided on the front of both the left and right sides of the trolley body. A cleaning brush is fixed at the bottom of the mounting frame. A receiving plate is slidably connected to the lower part of the inside of the treatment box, and several screening holes are opened on the surface of the receiving plate. A compression structure is provided on the upper part of both the left and right sides of the treatment box. A waste liquid box is placed at the bottom of the inner wall of the treatment box. Vibration structures are provided on both the left and right sides below the receiving plate. A vacuum pump is fixed on the rear side of the top of the trolley body, and a vent pipe is connected to the front side of the vacuum pump. An exhaust pipe is connected to the rear side of the vacuum pump. A purification structure is fixed on the rear side of the bottom of the trolley body.

[0006] Preferably, the buffer structure includes a mounting plate, a buffer spring, a protective plate, an elastic rod, a buffer strip, and a flexible block. The mounting plate is bolted to the front side of the suction hood. The buffer spring is fixed to the front surface of the mounting plate, and there are several buffer springs. The protective plate is fixed to the front side of the buffer spring. The elastic rod is bolted to the left and right sides of the upper and lower sides of the mounting plate, and the elastic rod is arc-shaped. The elastic rod is made of fiberglass. The buffer strip is located on the upper and lower sides of the protective plate, and the front end of the elastic rod is fixedly connected to the back of the buffer strip. The flexible block is adhered to the front surface of the buffer strip, and the flexible block is made of rubber.

[0007] Preferably, the reciprocating structure includes a first motor, a gear, a movable plate, a rack plate, and a connecting plate. The first motor is fixed to the top of the mounting housing, and the left and right sides of the mounting housing are open. The gear is rotatably connected to the middle of the interior of the mounting housing, and the output shaft of the first motor passes through the interior of the mounting housing and is fixedly connected to the top of the gear. The movable plate is slidably connected to the front and rear sides of the interior of the mounting housing, and the movable plate is L-shaped. The rack plate is fixed to the top of the front and rear movable plates, and the front and rear rack plates are staggered. The rack plate meshes with the gear. The connecting plate passes through the left and right sides of the mounting housing, and one side of the connecting plate is fixedly connected to the left and right movable plates. One side of the bottom of the connecting plate is bolted to the top of the mounting frame.

[0008] Preferably, guide rails are fixed on both the front and rear sides of the top of the inner wall of the mounting shell, and guide blocks are fixed on both sides of the top of the movable plate, with the guide blocks sleeved on the surface of the guide rails and slidably connected to the guide rails.

[0009] Preferably, the compression structure includes a first fixed frame, a second cylinder, and a pressing plate. The first fixed frame is fixed above the left and right sides of the processing box. The second cylinder is fixed to the surface of the first fixed frame, and the output shaft of the second cylinder extends into the interior of the processing box. The pressing plate is slidably connected above the left and right sides of the inner wall of the processing box, and the output shaft of the second cylinder is fixedly connected to the pressing plate.

[0010] Preferably, the vibration structure includes a second fixed frame, a second motor, a rotating rod, a cam, and a first spring. The second fixed frame is fixed to the lower left and right sides of the back of the processing box. The second motor is fixed to the side of the second fixed frame. The rotating rod is rotatably connected to the lower left and right sides inside the processing box, and the rear end of the rotating rod is fixedly connected to the output shaft of the second motor. The cam is fixed to the surface of the rotating rod, and the upper part of the cam contacts the bottom of the receiving plate and is slidably connected to the receiving plate. The first spring is fixed to the left and right sides of the bottom of the inner wall of the processing box, and the top end of the first spring is fixedly connected to the bottom of the receiving plate.

[0011] Preferably, a first sealing door is provided at the top of the back of the treatment box, and a second sealing door is provided at the bottom of the back of the treatment box, and the width of the second sealing door is the same as the width of the waste liquid box.

[0012] Preferably, the end of the vent pipe furthest from the vacuum pump is connected to the processing box, and the height of the connection between the vent pipe and the processing box is greater than the height of the connection between the suction pipe and the processing box. A filter element is installed inside the vent pipe.

[0013] Preferably, the purification structure includes a box body, a second fixing plate, a through hole, activated carbon filler, and an exhaust hole. The box body is fixed to the rear side of the bottom of the vacuum trolley body, the second fixing plate is fixed to the left and right sides of the inner wall of the box body, the through hole is opened on the surface of the second fixing plate, and the activated carbon filler is arranged on the left and right sides inside the box body. The exhaust hole is opened on the surface of the left and right sides of the box body.

[0014] Preferably, the end of the exhaust pipe away from the vacuum pump passes through the box and is connected to the box, and the connection point between the exhaust pipe and the box is located in the middle of the box.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention features highly efficient solid-liquid separation, directly squeezing out and separating water from waste at the work site. The separated solid waste and liquid wastewater can be treated separately, avoiding the complexity and high cost of mixed treatment and improving the efficiency of the entire process. The vacuum truck also has a buffer function, which can cushion and protect the parts on the vacuum truck in the event of a collision. It also has a sweeping and gathering function, which can sweep and gather the waste around the vacuum truck, concentrating the waste near the vacuum truck for easy collection. Moreover, the vacuum truck can also suck up and purify harmful gases during the waste collection process, effectively improving the working environment around the vacuum truck and allowing operators to breathe cleaner air during cleaning operations, thus improving work comfort. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0019] Figure 3 This is a three-dimensional schematic diagram of the suction hood in this invention from another perspective;

[0020] Figure 4 This is a three-dimensional schematic diagram of the reciprocating structure in this invention;

[0021] Figure 5 For the present invention Figure 4 A magnified view of a section at point A in the middle;

[0022] Figure 6 This is a three-dimensional schematic diagram of the processing box in this invention;

[0023] Figure 7 This is a cross-sectional view of the processing box in this invention from another perspective;

[0024] Figure 8 This is a three-dimensional schematic diagram of the purification structure in this invention.

[0025] In the diagram: 1. Sewage suction cart body; 2. Processing box; 3. Control panel; 4. Suction pipe; 5. Sewage suction hood; 6. First fixed plate; 7. First cylinder; 8. Buffer structure; 81. Mounting plate; 82. Buffer spring; 83. Protective plate; 84. Elastic rod; 85. Buffer strip; 86. Flexible block; 9. Mounting shell; 10. Reciprocating structure; 101. First motor; 102. Gear; 103. Moving plate; 104. Rack plate; 105. Connecting plate; 11. Mounting frame; 12. Cleaning brush; 13. Receiving plate; 14. Screening hole; 15. Compression structure Structure; 151, First fixed frame; 152, Second cylinder; 153, Squeezing plate; 16, Waste liquid box; 17, Vibration structure; 171, Second fixed frame; 172, Second motor; 173, Rotating rod; 174, Cam; 175, First spring; 18, Vacuum pump; 19, Vent pipe; 20, Exhaust pipe; 21, Purification structure; 211, Box body; 212, Second fixed plate; 213, Through hole; 214, Activated carbon filler; 215, Exhaust hole; 22, Guide rail; 23, Guide block; 24, First sealing door; 25, Second sealing door. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-8As shown, a municipal road vacuum truck includes a vacuum truck body 1. Universal wheels are installed at the four corners of the bottom of the vacuum truck body 1. A treatment box 2 is fixed to the center of the top of the vacuum truck body 1. A control panel 3 is installed on one side of the back of the treatment box 2. A suction pipe 4 is connected to the front of the treatment box 2. First fixing plates 6 are bolted to the left and right sides of the front of the vacuum truck body 1. A first cylinder 7 is fixed to the front of the first fixing plate 6. A vacuum hood 5 is bolted to the bottom of the output shaft of the first cylinder 7, and the vacuum hood 5 is connected to one end of the suction pipe 4. A buffer structure 8 is fixed to the front of the vacuum hood 5. A mounting shell 9 is bolted to the front of the top of the vacuum truck body 1, and a reciprocating mechanism is movably connected inside the mounting shell 9. Structure 10: Mounting brackets 11 are provided on the front of both the left and right sides of the vacuum cart body 1. A cleaning brush 12 is fixed at the bottom of the mounting bracket 11. A receiving plate 13 is slidably connected to the lower part of the inside of the treatment box 2. Several screening holes 14 are opened on the surface of the receiving plate 13. A compression structure 15 is provided on the upper part of both the left and right sides of the treatment box 2. A waste liquid box 16 is placed at the bottom of the inner wall of the treatment box 2. Vibration structures 17 are provided on both the left and right sides below the receiving plate 13. A vacuum pump 18 is fixed on the rear side of the top of the vacuum cart body 1. A vent pipe 19 is connected to the front side of the vacuum pump 18. An exhaust pipe 20 is connected to the rear side of the vacuum pump 18. A purification structure 21 is fixed on the rear side of the bottom of the vacuum cart body 1.

[0028] The buffer structure 8 includes a mounting plate 81, buffer springs 82, a protective plate 83, elastic rods 84, buffer strips 85, and flexible blocks 86. The mounting plate 81 is bolted to the front side of the suction hood 5. The buffer springs 82 are fixed to the surface of the front side of the mounting plate 81, and there are several buffer springs 82. The protective plate 83 is fixed to the front side of the buffer springs 82. The elastic rods 84 are bolted to the left and right sides of the upper and lower sides of the mounting plate 81, and the elastic rods 84 are arc-shaped and made of fiberglass. The buffer strips 85 are located on the upper and lower sides of the protective plate 83, and the front end of the elastic rod 84 is fixed to the back of the buffer strip 85. The flexible block 86 is bonded to the front surface of the buffer strip 85, and the flexible block 86 is made of rubber. When the staff pushes the vacuum truck body 1 to move on the road, the buffer structure 8 is located at the front of the vacuum truck. When it collides with foreign objects or walls on the road, the protective plate 83 and the buffer strip 85 will come into contact first, which will cause the buffer spring 82 and the elastic rod 84 to deform, thereby providing buffer protection for the vacuum cover 5 and the entire vacuum truck body 1. The flexible block 86 can also provide further buffer protection to prevent collisions during the vacuuming process from damaging the internal parts of the vacuum truck.

[0029] The reciprocating structure 10 includes a first motor 101, a gear 102, a moving plate 103, a rack plate 104, and a connecting plate 105. The first motor 101 is fixed to the top of the mounting housing 9, and the left and right sides of the mounting housing 9 are open. The gear 102 is rotatably connected to the middle of the interior of the mounting housing 9, and the output shaft of the first motor 101 passes through the interior of the mounting housing 9 and is fixedly connected to the top of the gear 102. The moving plate 103 is slidably connected to the front and rear sides of the interior of the mounting housing 9, and the moving plate 103 is L-shaped. The mounting housing 9 is configured such that rack plates 104 are fixed to the top of the front and rear movable plates 103, and the rack plates 104 are staggered. The rack plates 104 mesh with the gears 102. Connecting plates 105 are provided through the left and right sides of the mounting housing 9, and one side of the connecting plate 105 is fixedly connected to the left and right movable plates 103. One side of the bottom of the connecting plate 105 is bolted to the top of the mounting bracket 11. Guide rails 22 are fixed on both the front and rear sides of the top of the inner wall of the mounting housing 9. Guide rails 22 are fixed on both sides of the top of the movable plates 103. A guide block 23 is fixed, and the guide block 23 is sleeved on the surface of the guide rail 22 and slidably connected to the guide rail 22. When the worker pushes the vacuum truck to move forward for vacuuming, the worker can turn on the first motor 101 above the mounting shell 9, so that the output shaft of the first motor 101 drives the gear 102 below to rotate. Since the gear 102 meshes with the rack plates 104 on the front and rear sides respectively, the rotation of the gear 102 causes the moving plates 103 on the front and rear sides to move in opposite directions. The moving plates 103 pull the connecting plate 105 to move in opposite directions, thereby driving the mounting frame 11 and the sweeping brush 12 to move, so that the sweeping brushes 12 on the left and right sides push the dirt around the road towards the vacuum hood 5 so that the vacuum hood 5 can suck up the dirt. The rotation direction of the output shaft of the first motor 101 is controlled so that the mounting frame 11 drives the sweeping brush 12 to move towards each other and move in opposite directions to reset on the road, pushing the dirt around the bottom of the vacuum truck body 1 to the bottom of the vacuum hood 5.

[0030] The compression structure 15 includes a first fixed frame 151, a second cylinder 152, and a pressing plate 153. The first fixed frame 151 is fixed above the left and right sides of the processing box 2. The second cylinder 152 is fixed to the surface of the first fixed frame 151, and the output shaft of the second cylinder 152 extends into the interior of the processing box 2. The pressing plate 153 is slidably connected to the upper left and right sides of the inner wall of the processing box 2, and the output shaft of the second cylinder 152 is fixedly connected to the pressing plate 153. The vibration structure 17 includes a second fixed frame 171, a second motor 172, a rotating rod 173, a cam 174, and a first spring 175. The second fixed frame 171 is fixed above the processing box 2. On the lower left and right sides of the back of the processing box 2, the second motor 172 is fixed to the side of the second fixed bracket 171. The rotating rod 173 is rotatably connected to the lower left and right sides inside the processing box 2, and the rear end of the rotating rod 173 is fixedly connected to the output shaft of the second motor 172. The cam 174 is fixed to the surface of the rotating rod 173, and the upper part of the cam 174 contacts the bottom of the receiving plate 13 and slides between the receiving plate 13 and the receiving plate 13. The first spring 175 is fixed to the left and right sides of the bottom of the inner wall of the processing box 2, and the top end of the first spring 175 is fixedly connected to the bottom of the receiving plate 13. When the suction pipe 4 draws various dirt collected by the suction hood 5 into the processing box 2, the processing box 2 is activated. After entering the treatment box 2, the waste will fall directly onto the receiving plate 13. At this time, the operator can open the second motor 172 on both sides of the back of the treatment box 2, which will cause the rotating rods 173 on both sides below to rotate, the cam 174 to move, and the first spring 175 to pull the receiving plate 13 above, causing the receiving plate 13 to fall. Through the continuous rotation of the cam 174 and the continuous rebound and stretching of the first spring 175, the receiving plate 13 will shake up and down. The waste on the surface of the receiving plate 13 will undergo preliminary solid-liquid separation through the screening holes 14, so that the liquid waste falls into the waste liquid box 16 below, while the solid waste remains in the receiving plate. After the initial separation is completed on the surface of plate 13, the staff can turn off the second motors 172 on both sides, so that the top of the receiving plate 13 is in contact with the bottom of the extrusion plate 153. Then, the staff can open the second cylinders 152 on both sides, so that the output shafts of the second cylinders 152 are pushed out, causing the extrusion plates 153 on both sides to move towards the center of the processing box 2. The extrusion plates 153 on both sides squeeze the solid dirt on the surface of the receiving plate 13, compressing the solid dirt and reducing its volume. At the same time, the liquid dirt mixed inside the solid dirt can also be squeezed out, and solid-liquid separation is carried out again for subsequent collection and processing by the staff.

[0031] A first sealing door 24 is provided on the upper back of the treatment box 2, and a second sealing door 25 is provided on the lower back of the treatment box 2. The width of the second sealing door 25 is the same as the width of the waste liquid box 16. After the staff opens the first sealing door 24, they can take out the solid waste compressed on the surface of the receiving plate 13. After opening the second sealing door 25, the waste liquid box 16 can be moved out of the treatment box 2 and the liquid waste inside the waste liquid box 16 can be treated.

[0032] The end of the vent pipe 19 furthest from the vacuum pump 18 is connected to the processing box 2, and the height of the connection between the vent pipe 19 and the processing box 2 is greater than the height of the connection between the suction pipe 4 and the processing box 2. A filter element is installed inside the vent pipe 19. When the vacuum pump 18 is turned on, a negative pressure will be generated inside the processing box 2. By staggering the connection positions of the vent pipe 19 and the suction pipe 4, dirt can be prevented from directly entering the vent pipe 19. In addition, a filter element is installed inside the vent pipe 19, which can further prevent dirt from entering the vacuum pump 18.

[0033] The purification structure 21 includes a box body 211, a second fixing plate 212, a through hole 213, activated carbon filler 214, and an exhaust hole 215. The box body 211 is fixed to the rear side of the bottom of the vacuum trolley body 1. The second fixing plate 212 is fixed to the left and right sides of the inner wall of the box body 211. The through hole 213 is opened on the surface of the second fixing plate 212. The activated carbon filler 214 is arranged on the left and right sides inside the box body 211. The exhaust hole 215 is opened on the surface of the left and right sides of the box body 211. The end of the exhaust pipe 20 away from the vacuum pump 18 passes through the box body 211 and is connected to the box body 211. The connection between the exhaust pipe 20 and the box 211 is located in the middle of the box 211. When the vacuum pump 18 is pumping, it will directly draw the odor inside the treatment box 2 into the exhaust pipe 20. The exhaust pipe 20 will discharge the unpurified odor into the box 211. The odor will come into contact with the activated carbon filler 214 through the through hole 213 on the surface of the second fixed plate 212. After being adsorbed and filtered by the activated carbon filler 214, the purified air can be discharged from the exhaust hole 215, avoiding pollution to the surrounding environment or affecting the work of the staff.

[0034] Working principle: When the operator pushes the vacuum cart body 1 on the road, the first motor 101 on the top of the mounting shell 9 is activated. The first motor 101 drives the gear 102 to rotate. Since the gear 102 meshes with the rack plates 104 arranged in a staggered manner, it drives the moving plates 103 on both sides and the connecting plates 105 bolted to them to reciprocate in opposite directions. The connecting plates 105 drive the mounting frame 11 and the sweeping brush 12 at the bottom to move left and right, thereby gathering the dirt on the road towards the vacuum hood 5 in the center. The buffer structure 8 located at the front of the device plays a protective role when encountering obstacles. The collision force causes the protective plate 83 to move backward, compressing the buffer spring 82 and causing the arc-shaped fiberglass elastic rod 84 to deform, which in turn affects the buffer strip 85. The flexible rubber blocks 86 on the front side absorb impact energy together, preventing damage to the suction hood 5 and internal components of the vehicle. When the vacuum pump 18 is turned on, air is drawn from inside the treatment box 2 through the vent pipe 19, creating a negative pressure inside the treatment box 2 and the connected suction pipe 4 and suction hood 5. This forcefully sucks in the dirt that has been gathered by the cleaning brush 12 to the bottom of the suction hood 5. After the dirt enters the treatment box 2 through the suction pipe 4 with the airflow, it first falls onto the receiving plate 13. This activates the second motor 172 in the vibration structure 17. The second motor 172 drives the rotating rod 173 and cam 174 to rotate. With the cooperation of the first spring 175, the receiving plate 13 is driven to vibrate continuously up and down. The liquid components in the dirt are separated by the sieve holes 14 on the surface of the receiving plate 13 and fall into the water. The solid waste is placed in the waste liquid box 16 below for initial solid-liquid separation. After the initial separation, the solid waste remaining on the receiving plate 13 will undergo further dehydration. The operator turns off the second motor 172 and starts the second cylinder 152 in the compression structure 15. The output shaft of the second cylinder 152 pushes the extrusion plate 153 towards the center of the processing tank 2, performing bidirectional mechanical extrusion on the solid waste on the receiving plate 13. While compressing the solid volume, the residual liquid is further squeezed out. The liquid also falls into the waste liquid box 16 through the screening hole 14, completing the secondary solid-liquid separation. After the treatment is completed, the solid waste can be removed from the receiving plate 13 by opening the first sealing door 24 on the back of the processing tank 2, while the waste liquid box 16 stores the liquid waste. The entire unit can be extracted from the second sealed door 25 below, enabling the separate collection and transportation of dry and wet waste. During the entire suction and treatment process, the odor generated by the waste is extracted from the treatment box 2 by the vacuum pump 18 and introduced into the purification structure 21 located at the bottom rear of the suction cart body 1 via the exhaust pipe 20. After entering the box 211, the odor passes through the activated carbon filler 214 filled on both sides. The activated carbon filler 214 adsorbs odor molecules through its huge specific surface area and abundant micropores. The purified air is finally discharged from the exhaust holes 215 on both sides of the box 211, effectively avoiding the impact of odor on operators and the environment. In addition, the connection port of the vent pipe 19 on the treatment box 2 is higher than the inlet of the suction pipe 4, and is equipped with a filter element inside.This design effectively prevents solid particles or liquid droplets carried by the airflow from directly entering the vacuum pump 18, thereby protecting the critical components of the vacuum pump 18 and extending the service life of the equipment.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A municipal road vacuum truck, comprising a vacuum cart body (1), characterized in that: The four corners of the bottom of the vacuum cart body (1) are equipped with casters. A treatment box (2) is fixed in the middle of the top of the vacuum cart body (1). A control panel (3) is installed on one side of the back of the treatment box (2). A suction pipe (4) is connected to the front of the treatment box (2). A first fixing plate (6) is bolted to the left and right sides of the front of the vacuum cart body (1). A first cylinder (7) is fixed to the front of the first fixing plate (6). A vacuum cover (5) is bolted to the bottom of the output shaft of the first cylinder (7). The vacuum cover (5) is connected to one end of the suction pipe (4). A buffer structure (8) is fixed to the front of the vacuum cover (5). A mounting shell (9) is bolted to the front of the top of the vacuum cart body (1). A reciprocating structure (10) is movably connected inside the mounting shell (9). (1) Mounting brackets (11) are provided on the front of both the left and right sides. A cleaning brush (12) is fixed at the bottom of the mounting bracket (11). A receiving plate (13) is slidably connected to the bottom of the inside of the treatment box (2). Several screening holes (14) are opened on the surface of the receiving plate (13). A compression structure (15) is provided on the top of both the left and right sides of the treatment box (2). A waste liquid box (16) is placed at the bottom of the inner wall of the treatment box (2). A vibration structure (17) is provided on both the left and right sides below the receiving plate (13). A vacuum pump (18) is fixed on the rear side of the top of the sewage suction cart body (1). A ventilation pipe (19) is connected to the front side of the vacuum pump (18). An exhaust pipe (20) is connected to the rear side of the vacuum pump (18). A purification structure (21) is fixed on the rear side of the bottom of the sewage suction cart body (1).

2. A municipal road vacuum truck according to claim 1, characterized in that: The buffer structure (8) includes a mounting plate (81), a buffer spring (82), a protective plate (83), an elastic rod (84), a buffer strip (85), and a flexible block (86). The mounting plate (81) is bolted to the front side of the suction hood (5). The buffer spring (82) is fixed to the surface of the front side of the mounting plate (81), and there are several buffer springs (82). The protective plate (83) is fixed to the front side of the buffer spring (82). The elastic rod (84) is bolted to the left and right sides of the upper and lower sides of the mounting plate (81), and the elastic rod (84) is arc-shaped. The material of the elastic rod (84) is fiberglass. The buffer strip (85) is located on the upper and lower sides of the protective plate (83), and the front end of the elastic rod (84) is fixedly connected to the back of the buffer strip (85). The flexible block (86) is bonded to the surface of the front side of the buffer strip (85), and the material of the flexible block (86) is rubber.

3. A municipal road vacuum truck according to claim 1, characterized in that: The reciprocating structure (10) includes a first motor (101), a gear (102), a moving plate (103), a rack plate (104), and a connecting plate (105). The first motor (101) is fixed to the top of the mounting shell (9), and the left and right sides of the mounting shell (9) are open. The gear (102) is rotatably connected to the middle of the interior of the mounting shell (9), and the output shaft of the first motor (101) passes through the interior of the mounting shell (9) and is fixedly connected to the top of the gear (102). The moving plate (103) is slidably connected to the mounting shell. (9) The front and rear sides inside, and the moving plate (103) is arranged in an L shape. The rack plate (104) is fixed on the top of the front and rear moving plates (103), and the front and rear rack plates (104) are staggered. The rack plate (104) meshes with the gear (102). The connecting plate (105) is arranged through the left and right sides of the mounting shell (9), and one side of the connecting plate (105) is fixedly connected to the moving plates (103) on the left and right sides. One side of the bottom of the connecting plate (105) is bolted to the top of the mounting frame (11).

4. A municipal road vacuum truck according to claim 3, characterized in that: Guide rails (22) are fixed on both the front and rear sides of the top of the inner wall of the mounting shell (9), and guide blocks (23) are fixed on both sides of the top of the moving plate (103). The guide blocks (23) are sleeved on the surface of the guide rails (22) and are slidably connected to the guide rails (22).

5. A municipal road vacuum truck according to claim 1, characterized in that: The compression structure (15) includes a first fixed frame (151), a second cylinder (152) and an extrusion plate (153). The first fixed frame (151) is fixed above the left and right sides of the processing box (2). The second cylinder (152) is fixed on the surface of the first fixed frame (151), and the output shaft of the second cylinder (152) extends into the interior of the processing box (2). The extrusion plate (153) is slidably connected above the left and right sides of the inner wall of the processing box (2), and the output shaft of the second cylinder (152) is fixedly connected to the extrusion plate (153).

6. A municipal road vacuum truck according to claim 1, characterized in that: The vibration structure (17) includes a second fixed frame (171), a second motor (172), a rotating rod (173), a cam (174), and a first spring (175). The second fixed frame (171) is fixed on the lower left and right sides of the back of the processing box (2). The second motor (172) is fixed on the side of the second fixed frame (171). The rotating rod (173) is rotatably connected to the lower left and right sides inside the processing box (2), and the rear end of the rotating rod (173) is fixedly connected to the output shaft of the second motor (172). The cam (174) is fixed on the surface of the rotating rod (173), and the upper part of the cam (174) contacts the bottom of the receiving plate (13) and slides between the receiving plate (13). The first spring (175) is fixed on the lower left and right sides of the bottom of the inner wall of the processing box (2), and the top end of the first spring (175) is fixedly connected to the bottom of the receiving plate (13).

7. A municipal road vacuum truck according to claim 1, characterized in that: A first sealing door (24) is provided on the upper back of the treatment box (2), and a second sealing door (25) is provided on the lower back of the treatment box (2), and the width of the second sealing door (25) is the same as the width of the waste liquid box (16).

8. A municipal road vacuum truck according to claim 1, characterized in that: The end of the vent pipe (19) away from the vacuum pump (18) is connected to the processing box (2), and the height of the connection between the vent pipe (19) and the processing box (2) is greater than the height of the connection between the suction pipe (4) and the processing box (2). A filter element is installed inside the vent pipe (19).

9. A municipal road vacuum truck according to claim 1, characterized in that: The purification structure (21) includes a box body (211), a second fixing plate (212), a through hole (213), activated carbon filler (214), and an exhaust hole (215). The box body (211) is fixed to the rear side of the bottom of the vacuum trolley body (1). The second fixing plate (212) is fixed to the left and right sides of the inner wall of the box body (211). The through hole (213) is opened on the surface of the second fixing plate (212). The activated carbon filler (214) is arranged on the left and right sides inside the box body (211). The exhaust hole (215) is opened on the surface of the left and right sides of the box body (211).

10. A municipal road vacuum truck according to claim 9, characterized in that: The end of the exhaust pipe (20) away from the vacuum pump (18) passes through the box body (211) and is connected to the box body (211), and the connection position between the exhaust pipe (20) and the box body (211) is located in the middle of the box body (211).

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