Road maintenance vehicle

Abstract

The present invention belongs to the technical field of road maintenance, and specifically is a road pavement maintenance vehicle, comprising a maintenance vehicle body, a mounting frame, a cleaning component, a sealing component and a sealing cover; the present invention forms a sealed space between the sealing cover and the pavement through the sealing component, then injects water into the sealed space, and then circulates the water in the sealing cover through a water pump, thereby flushing the stains and debris on the pavement, thereby removing the stains and debris on the pavement, and thereby cleaning the pavement; by providing a cleaning component, the cleaning structure of the cleaning component rubs the pavement, thereby brushing off the stubborn stains on the pavement, thereby cleaning the stubborn stains, and thereby improving the cleaning effect of the pavement maintenance vehicle; by replenishing water into the sealing cover through a water replenishing component, thereby keeping the amount of water in the sealing cover within a certain range, thereby realizing reliable circulation of water, thereby ensuring the flushing effect on the water pavement, and thereby ensuring the cleaning effect of the pavement.

Description

Technical Field

[0001] The invention belongs to the technical field of road maintenance, in particular to a road pavement maintenance vehicle. Background Art

[0002] With the progress of society, there are more and more vehicles on the road. The high-speed rotating tires can easily bring debris and dust on the road into the air, reducing the quality of the air. Therefore, the road surface needs to be cleaned regularly to keep it clean. The road cleaning vehicle is a special vehicle designed and manufactured for road cleaning. It can wash away stains and debris on the road surface to keep the road surface clean.

[0003] When existing road cleaning vehicles are used to clean the road surface, workers are required to hold water guns to flush the road surface, and a large amount of water is needed to flush the road surface, resulting in a waste of water resources. In addition, the water cannot be controlled during the flushing process, which can easily cause water to splash onto pedestrians, dirtying their clothes, causing inconvenience to pedestrians and affecting their normal passage. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, the present invention proposes a road pavement maintenance vehicle. The present invention is mainly used to solve the problem that the existing road cleaning vehicle requires a large amount of water to wash the road surface, resulting in a waste of water resources, and the water cannot be controlled during the washing process, which easily causes water to splash onto pedestrians, causing inconvenience to pedestrians.

[0005] The technical solution adopted by the present invention to solve its technical problem is: the present invention provides a road pavement maintenance vehicle, comprising a maintenance vehicle body, a mounting frame, a cleaning component, a sealing member and a sealing cover; the mounting frame is arranged in the maintenance vehicle body; the mounting frame is connected to the maintenance vehicle body; the sealing cover is arranged at the lower end of the mounting frame; the sealing cover is fixedly connected to the mounting frame; one end of the sealing cover is provided with a suction chamber; the other end of the sealing cover is provided with a discharge chamber; the lower end of the sealing cover is provided with a mounting chamber; the mounting chamber is arranged close to one side of the suction chamber; the cleaning component comprises a No. 1 motor, a rotating shaft, a cleaning component, a water pump, a water replenishment assembly and a water tank; the water tank is arranged on the mounting frame; the water tank is fixedly connected to the mounting frame; the cleaning component is arranged in the mounting cavity; the rotating shaft passes through the cleaning component; the rotating shaft is fixedly connected to the cleaning component; the two ends of the rotating shaft are rotatably connected to the mounting frame respectively; the mounting frame is symmetrically arranged The water pump; the water pump is fixedly connected to the mounting frame; one end of the water pump is communicated with the suction chamber through No. 1 pipe; one end of the No. 1 pipe is communicated with the water pump; the other end of the No. 1 pipe is provided with a filter; one end of the filter is communicated with the No. 1 pipe; the other end of the filter is communicated with the suction chamber; a vertical pipe structure is provided on the No. 1 pipe; the vertical pipe structure is communicated with the water tank; the other end of the water pump is communicated with the discharge chamber; the sealing member is arranged at the lower end of the mounting frame; the sealing member is fixedly connected to the lower end of the mounting frame; the sealing member is used to achieve sealing between the sealing cover and the road surface; the No. 1 motor is arranged on the mounting frame; the No. 1 motor is fixedly connected to the mounting frame; the rotating shaft of the No. 1 motor and the rotating shaft are driven by a belt; the water replenishing assembly is arranged in the sealing cover; the water replenishing assembly is connected to the sealing cover; the water replenishing assembly is used to achieve automatic water replenishment into the sealing cover.

[0006] During operation, the road maintenance vehicle is driven to the road surface that needs to be cleaned, so that the lower end of the seal is squeezed on the road surface, thereby forming a sealed space between the sealing cover and the road surface, and then water is injected into the sealed space. After the water injection is completed, the water pump works, and then the water pump generates suction on the water in the suction chamber, and then the water in the suction chamber is sucked into the water pump, and then the water re-enters the discharge chamber, thereby forming a circulation of water in the sealing cover (the water in the sealing cover continuously enters the water pump from the suction chamber, and then enters the sealing cover from the discharge chamber). The water continuously flushes the road surface during the circulation process, and then continuously flushes the stains and debris on the road surface, thereby removing the stains and debris on the road surface, thereby achieving road cleaning, and at the same time the road surface The maintenance vehicle moves forward, thereby cleaning the entire road surface; by setting a cleaning piece, water flushes the road surface while the No. 1 motor rotates, and then the rotating shaft is driven to rotate through the belt, and then the cleaning piece is driven to rotate, and then the cleaning structure of the cleaning piece rubs the road surface, and then the stubborn stains on the road surface are brushed off, thereby cleaning the stubborn stains, thereby improving the cleaning effect of the road maintenance vehicle, and thereby improving the cleanliness of the road surface; when the water in the sealing cover is reduced (water leaks from the gap between the sealing element and the road surface, and the road surface absorbs water, etc., which will reduce the water volume), the water pump's suction effect on the water will be reduced, thereby reducing the water flow rate, thereby reducing the flushing effect of the water on the road surface, and by setting a water replenishment component, the water supply to the sealing cover will be increased. Water is replenished in the sealing cover, so that the water volume in the sealing cover is maintained within a certain range, so as to realize reliable circulation of water, so as to ensure the flushing effect of the water road surface, so as to ensure the cleaning effect of the road surface, so as to realize the reliable operation of the road maintenance vehicle; by setting a filter between the No. 1 pipe and the suction chamber, the water entering the No. 1 pipe is filtered and purified, so that the water re-entering the discharge chamber is kept clean, so as to prevent the water in the sealing cover from becoming more and more dirty, so as to prevent the water from polluting the road surface after becoming dirty, so as to keep the road surface clean, so as to improve the cleaning effect of the road maintenance vehicle; when the existing road cleaning vehicle cleans the road surface, the staff needs to hold a water gun to flush the road surface, and a large amount of water is required to achieve The existing road flushing causes a waste of water resources, and the water cannot be controlled during the flushing process, which easily causes water to splash onto pedestrians, soiling their clothes and causing inconvenience to pedestrians. The pavement maintenance vehicle can flush the road surface while the pavement maintenance vehicle is moving, thereby avoiding the need for staff to flush the road surface with a hand-held water gun, thereby reducing the workload of the staff and improving the flushing efficiency, thereby saving time. By setting sealing members, water can flush the road surface in a relatively sealed space, thereby saving flushing water and water resources. At the same time, the sealing member prevents water from splashing onto areas outside the sealing member, thereby preventing water from splashing onto pedestrians, thereby reducing the interference caused to pedestrians by pavement cleaning.

[0007] Preferably, the water replenishment component includes a swinging plate, an elastic member No. 1 and a sensor; the swinging plate is arranged in the suction chamber; the swinging plate is hinged to the side wall of the suction chamber; an elastic member No. 1 is arranged on the swinging plate; the elastic member No. 1 is arranged at intervals; one end of the elastic member No. 1 is fixedly connected to the swinging plate; the other end of the elastic member No. 1 is fixedly connected to the side wall of the suction chamber; the sensor is arranged under the swinging plate; the sensor is fixedly connected to the side wall of the suction chamber; a controller and a judge are provided on the mounting frame; the controller and the judge are both fixedly connected to the mounting frame; the sensor is communicated with the judge; the judge is communicated with the controller; a solenoid valve is provided on the vertical pipe structure; the solenoid valve is fixedly connected to the vertical pipe structure; the solenoid valve is communicated with the controller.

[0008] When the amount of water in the sealing cover decreases, the water pump's suction effect on water weakens, thereby weakening the water circulation, thereby reducing the impact force of water on the swing plate, and then the swing plate rotates downward under the action of the elastic force of the No. 1 elastic member, thereby causing the swing plate to contact the sensor, thereby increasing the pressure on the sensor, thereby triggering the sensor, and then the sensor transmits the pressure signal to the judge, and then the judge compares the pressure on the sensor with the calibrated pressure. When the pressure of the sensor is greater than or equal to the calibrated upper limit pressure, the judge concludes that the sealing cover is short of water, and then sends a water replenishment signal to the controller. After the controller receives the water replenishment signal, the controller opens the No. 1 solenoid valve, and then the water pump generates suction on the water in the water tank, thereby replenishing the water. The water in the box is sucked into the discharge cavity, and then the sealing cover is replenished with water, thereby increasing the amount of water in the sealing cover, thereby increasing the water pump's suction effect on water, thereby increasing the flow of water, thereby increasing the impact of water on the swing plate, thereby causing the swing plate to rotate upward, thereby reducing the pressure on the sensor. When the pressure of the sensor is less than the calibrated lower limit pressure, the judge determines that the amount of water is sufficient, and then sends a signal to the controller to stop replenishing water, and then the controller closes the solenoid valve, thereby stopping replenishing water into the sealing cover, thereby keeping the amount of water in the sealing cover within a certain range, thereby achieving reliable water circulation, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thereby achieving reliable operation of the road maintenance vehicle.

[0009] Preferably, the road maintenance vehicle also includes a lifting component; the lifting component includes a fixed plate, a hydraulic cylinder, a guide column and a second elastic member; a mounting plate is provided on the mounting frame; the mounting plate is fixedly connected to the mounting frame; the fixing plate is provided on the maintenance vehicle body; the fixing plate is fixedly connected to the maintenance vehicle body; the guide column is provided on the fixing plate; the guide columns are evenly spaced; the guide column is slidably connected to the fixing plate; the lower end of the guide column is fixedly connected to the mounting plate; the upper end of the guide column is provided with a first limit plate; the first limit plate and the guide column Fixed connection; the second elastic member is arranged between the fixed plate and the first limit plate; the second elastic member is sleeved on the guide column; a mounting hole is arranged in the middle of the mounting plate; the hydraulic cylinder is arranged on the fixed plate; the hydraulic cylinder is fixedly connected to the fixed plate; the hydraulic piston rod passes through the fixed plate; the piston rod of the hydraulic cylinder passes through the mounting hole; the piston rod of the hydraulic cylinder is clearance-matched with the mounting hole; a second limit plate is arranged under the mounting plate; the second limit plate is fixedly connected to the end of the piston rod of the hydraulic cylinder; the hydraulic cylinder is connected to the controller.

[0010] By setting a lifting component, when the road surface is not cleaned, the controller controls the hydraulic cylinder to work, thereby retracting the hydraulic cylinder piston rod, thereby driving the mounting frame to move upward, thereby driving the cleaning component and the seal to move upward, thereby separating the seal from the road surface, thereby preventing the seal from being pressed on the road surface during the transfer of the maintenance vehicle, thereby reducing the friction between the seal and the ground, thereby slowing down the wear of the seal, and thereby extending the service life of the seal; when the road surface is cleaned, the controller extends the piston rod of the hydraulic cylinder, thereby moving the mounting frame downward, thereby moving the cleaning component and the seal toward the road surface, thereby forming a sealed space on the road surface where the seal is pressed by the force of gravity, thereby facilitating the flushing of the road surface, thereby facilitating the cleaning of the road surface. Cleaning; through the clearance cooperation between the piston rod and the mounting hole, the mounting plate and or the piston rod can slide relatively, so that the mounting frame can move up and down. When the road maintenance vehicle passes over a raised road surface, the road surface exerts a force on the seal, so that the mounting frame moves upward, thereby preventing the bottom of the mounting frame from being stuck at the protrusion, thereby preventing the mounting frame from being stuck at the protrusion and hindering the normal movement of the road maintenance vehicle, thereby achieving reliable movement of the road maintenance vehicle, thereby improving the applicability of the road maintenance vehicle. When the road maintenance vehicle passes over a concave road surface, the mounting frame moves downward under the action of gravity, so that the seal is reliably squeezed on the road surface, so that the sealing cover and the road surface are always kept sealed, thereby achieving reliable flow of water, thereby improving the applicability of the road maintenance vehicle.

[0011] Preferably, a discharge port is provided on the side wall of the suction chamber; a filter plate is provided in the discharge port; the filter plate is fixedly connected to the side wall of the suction chamber; the filter plate is arranged at an angle; a collecting cover is provided outside the discharge port; and the collecting cover is fixedly connected to the outer wall of the suction chamber.

[0012] By setting the discharge port and the filter plate, during the water circulation process, the water exerts a force on the debris on the road surface, thereby driving the debris to move. When the water and the debris pass through the filter plate, the water continues to flow upward from the mesh holes of the filter plate, while the debris is blocked under the filter plate, and then under the action of the water flow, the debris slides upward along the surface of the filter plate, and then enters the collection cover (the collection cover is sealed and connected to the side wall of the suction chamber) through the discharge port, and then the debris is collected, and then the debris is processed centrally, while reducing the debris in the water, thereby preventing the debris from hindering the flow of water, thereby realizing the reliable circulation of water, thereby ensuring the flushing of the road surface by water, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thereby realizing the reliable operation of the road maintenance vehicle.

[0013] Preferably, a reflux hole is provided on the side wall of the suction chamber connected to the collecting hood; the reflux holes are arranged at even intervals; and the reflux holes are arranged within the sealing range of the collecting hood.

[0014] By setting the reflux hole, when the work stops, the water in the collection cover flows into the suction chamber through the reflux hole, and then all the water is discharged from the collection cover before opening the collection cover, thereby preventing water accumulation when opening the collection cover, and making it convenient to clean up the debris in the collection cover.

[0015] Preferably, the sealing member is a rectangular annular structure; the sealing member is made of a flexible material; a through hole is provided in the sealing member; the through holes are arranged along the annular direction of the sealing member; and the through holes are arranged at even intervals.

[0016] By arranging through holes along the annular direction of the seal, the ability of the seal to deform is increased, thereby improving the fit between the seal and the road surface, thereby improving the sealing effect between the seal and the road surface, thereby slowing down water loss, thereby extending the use time of water in the water tank, thereby extending the continuous working time of the road maintenance vehicle, and thereby improving the working efficiency of the road maintenance vehicle.

[0017] Preferably, a wear-resistant layer is provided on the outside of the sealing element; the wear-resistant layer is in contact with the surface of the sealing element; and the wear-resistant layer is replaceable.

[0018] By providing a replaceable wear-resistant layer, the seal is prevented from directly contacting the road surface, thereby reducing the friction on the seal, slowing down the wear of the seal, and extending the service life of the seal, thereby avoiding frequent replacement of the seal, thereby saving costs.

[0019] Preferably, installation grooves are symmetrically provided on the inner and outer sides of the seal; the installation grooves are arranged along the circumferential direction of the seal; a magnetic strip is provided on the bottom surface of the installation groove; the magnetic strip is arranged along the circumferential direction of the seal; the magnetic strip is cast together with the seal; metal strips are provided on the upper ends of the inner and outer circles of the wear-resistant layer; and the metal strip is snapped into the installation groove.

[0020] The installation of the wear-resistant layer is completed by setting installation grooves on the inner and outer sides of the seal and clamping the metal strips on the upper ends of the inner and outer circles of the wear-resistant layer into the installation grooves, thereby facilitating the installation and removal of the wear-resistant layer, and thus facilitating the replacement of the wear-resistant layer. By setting a magnetic strip, the magnetic strip generates suction on the metal strip, and thus the metal strip is reliably clamped in the installation groove, thereby achieving a reliable connection between the wear-resistant layer and the seal, and thus achieving reliable operation of the seal.

[0021] The beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, the road maintenance vehicle is driven onto the road surface that needs to be cleaned, so that the lower end of the seal is pressed against the road surface, thereby forming a sealed space between the sealing cover and the road surface, and then water is injected into the sealed space. After the water injection is completed, the water pump works, and then the water pump generates suction on the water in the suction chamber, thereby sucking the water in the suction chamber into the water pump, and then the water re-enters the discharge chamber, thereby circulating the water in the sealing cover (the water in the sealing cover continuously enters the water pump from the suction chamber, and then enters the sealing cover from the discharge chamber). The water continuously flushes the road surface during the circulation process, thereby continuously flushing the stains and debris on the road surface, thereby removing the stains and debris on the road surface, thereby achieving road cleaning, and at the same time The road maintenance vehicle moves forward to clean the entire road surface; by setting a cleaning piece, water flushes the road surface while the No. 1 motor rotates, and then the rotating shaft is driven to rotate through the belt, and then the cleaning piece is driven to rotate, and then the cleaning structure of the cleaning piece rubs the road surface, and then the stubborn stains on the road surface are brushed off, thereby cleaning the stubborn stains, thereby improving the cleaning effect of the road maintenance vehicle, and thereby improving the cleanliness of the road surface; when the water in the sealing cover is reduced (water leaks from the gap between the sealing piece and the road surface, and the road surface absorbs water, etc., which will reduce the water volume), the water pump's suction effect on the water will be reduced, thereby reducing the water flow rate, thereby reducing the flushing effect of the water on the road surface, and by setting a water replenishment component, the water supply will be increased. Water is replenished in the sealing cover, so that the amount of water in the sealing cover is maintained within a certain range, so as to achieve reliable circulation of water, so as to ensure the flushing effect on the water road surface, so as to ensure the cleaning effect of the road surface, so as to achieve reliable operation of the road maintenance vehicle; by arranging a filter between the No. 1 pipe and the suction chamber, the water entering the No. 1 pipe is filtered and purified, so that the water re-entering the discharge chamber is kept clean, so as to prevent the water in the sealing cover from becoming more and more dirty, so as to prevent the water from polluting the road surface after becoming dirty, so as to keep the road surface clean, so as to improve the cleaning effect of the road maintenance vehicle; when the existing road cleaning vehicle cleans the road surface, the staff needs to hold a water gun to flush the road surface, and a large amount of water is required to achieve The existing road flushing causes a waste of water resources, and the water cannot be controlled during the flushing process, which easily causes water to splash onto pedestrians, soiling their clothes and causing inconvenience to pedestrians. The present road maintenance vehicle realizes road flushing during the movement of the road maintenance vehicle, thereby avoiding the need for staff to flush the road with a hand-held water gun, thereby reducing the workload of the staff and improving the flushing efficiency, thereby saving time. By setting sealing members, the water can flush the road surface in a relatively sealed space, thereby saving flushing water and water resources. At the same time, the sealing member prevents water from splashing onto areas outside the sealing member, thereby preventing water from splashing onto pedestrians, thereby reducing the interference caused to pedestrians by road cleaning.

[0023] 2. In the present invention, when the amount of water in the sealing cover decreases, the water pumping effect on the water is weakened, thereby weakening the water circulation, thereby reducing the impact force of the water on the swing plate, and then the swing plate is rotated downward under the action of the elastic force of the No. 1 elastic member, thereby causing the swing plate to contact the sensor, thereby increasing the pressure on the sensor, thereby triggering the sensor, and then the sensor transmits the pressure signal to the judge, and then the judge compares the pressure on the sensor with the calibrated pressure. When the pressure of the sensor is greater than or equal to the calibrated upper limit pressure, the judge concludes that the sealing cover is short of water, and then sends a water replenishment signal to the controller. After the controller receives the water replenishment signal, the controller opens the No. 1 solenoid valve, and then the water pump generates suction on the water in the water tank, thereby The water in the water tank is sucked into the discharge cavity, and then the sealing cover is replenished with water, thereby increasing the amount of water in the sealing cover, thereby increasing the suction effect of the water pump on the water, thereby increasing the flow of water, thereby increasing the impact of water on the swing plate, thereby causing the swing plate to rotate upward, thereby reducing the pressure on the sensor. When the pressure of the sensor is less than the calibrated lower limit pressure, the judge determines that the amount of water is sufficient, and then sends a signal to the controller to stop replenishing water, and then the controller closes the solenoid valve, thereby stopping replenishing water into the sealing cover, thereby keeping the amount of water in the sealing cover within a certain range, thereby achieving reliable circulation of water, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thereby achieving reliable operation of the road maintenance vehicle.

[0024] 3. In the present invention, by setting a lifting component, when the road surface is not cleaned, the controller controls the hydraulic cylinder to work, thereby retracting the piston rod of the hydraulic cylinder, thereby driving the mounting frame to move upward, thereby driving the cleaning component and the seal to move upward, thereby causing the seal to separate from the road surface, thereby preventing the seal from being pressed on the road surface all the time when the maintenance vehicle is transferred, thereby reducing the friction between the seal and the ground, thereby slowing down the wear of the seal, thereby extending the service life of the seal; when the road surface is cleaned, the controller extends the piston rod of the hydraulic cylinder, thereby causing the mounting frame to move downward, thereby causing the cleaning component and the seal to move toward the road surface, thereby forming a sealed space on the road surface where the seal is pressed by the force of gravity, thereby facilitating the flushing of the road surface, thereby facilitating The road surface is cleaned; through the clearance fit between the piston rod and the mounting hole, the mounting plate and or the piston rod can slide relatively, so that the mounting frame can move up and down. When the road maintenance vehicle passes over a raised road surface, the road surface exerts a force on the seal, so that the mounting frame moves upward, thereby preventing the bottom of the mounting frame from being stuck at the protrusion, thereby preventing the mounting frame from being stuck at the protrusion and hindering the normal movement of the road maintenance vehicle, thereby achieving reliable movement of the road maintenance vehicle, thereby improving the applicability of the road maintenance vehicle. When the road maintenance vehicle passes over a concave road surface, the mounting frame moves downward under the action of gravity, so that the seal is reliably squeezed on the road surface, so that the sealing cover and the road surface are always kept sealed, thereby achieving reliable flow of water, thereby improving the applicability of the road maintenance vehicle.

[0025] 4. In the present invention, by providing a discharge port and a filter plate, during the water circulation process, water exerts a force on the debris on the road surface, thereby driving the debris to move. When the water and the debris pass through the filter plate, the water continues to flow upward from the mesh holes of the filter plate, while the debris is blocked under the filter plate. Then, under the action of the water flow, the debris slides upward along the surface of the filter plate, and then the debris enters the collection cover (the collection cover is sealed and connected to the side wall of the suction chamber) through the discharge port, and then the debris is collected, and then the debris is processed centrally, while reducing the debris in the water, thereby preventing the debris from hindering the flow of water, thereby realizing reliable circulation of water, thereby ensuring the flushing of the road surface by water, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thereby realizing reliable operation of the road maintenance vehicle.

[0026] 5. In the present invention, by setting a reflux hole, when stopping work, the water in the collection cover flows into the suction chamber through the reflux hole, and then all the water is discharged from the collection cover before opening the collection cover, thereby preventing water accumulation when opening the collection cover, and making it convenient to clean up the debris in the collection cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1It is a schematic diagram of the overall structure of the road maintenance vehicle of the present invention;

[0029] Figure 2 It is a schematic diagram of the internal structure of the road maintenance vehicle of the present invention;

[0030] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0031] Figure 4 It is a schematic diagram of the structure of the cleaning component in the present invention;

[0032] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle;

[0033] Figure 6 It is a structural schematic diagram of the water replenishment component in the present invention;

[0034] Figure 7 yes Figure 6 A partial enlarged view of point C in the middle;

[0035] Figure 8 yes Figure 6 A partial enlarged view of point D in the middle;

[0036] Fig. 9 It is a schematic diagram of the structure of the sealing member in the present invention;

[0037] Fig.10 yes Fig. 9 A partial enlarged view of point E in the middle;

[0038] Fig.11 It is a structural schematic diagram of the sealing cover in the present invention;

[0039] In the figure: maintenance vehicle body 1, mounting frame 2, mounting plate 21, No. 2 limit plate 212, cleaning component 3, No. 1 motor 31, rotating shaft 32, cleaning component 33, water pump 34, water replenishment component 35, swing plate 351, No. 1 elastic member 352, sensor 353, solenoid valve 354, water tank 36, No. 1 pipeline 37, vertical pipe structure 371, filter element 38, sealing element 4, through hole 41, wear-resistant layer 42, metal strip 421, mounting groove 43, magnetic strip 431, sealing cover 5, suction chamber 51, discharge port 511, filter plate 512, collection cover 513, reflux hole 514, discharge chamber 52, installation chamber 53, lifting component 6, fixing plate 61, hydraulic cylinder 62, guide column 63, No. 1 limit plate 631, No. 2 elastic member 64. DETAILED DESCRIPTION

[0040] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0041] like Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Fig. 9 and Fig.11 As shown, a road maintenance vehicle comprises a maintenance vehicle body 1, a mounting frame 2, a cleaning component 3, a seal 4 and a sealing cover 5; the mounting frame 2 is arranged in the maintenance vehicle body 1; the mounting frame 2 is connected to the maintenance vehicle body 1; the sealing cover 5 is arranged at the lower end of the mounting frame 2; the sealing cover 5 is fixedly connected to the mounting frame 2; a suction chamber 51 is arranged at one end of the sealing cover 5; a discharge chamber 52 is arranged at the other end of the sealing cover 5; a mounting chamber 53 is arranged at the lower end of the sealing cover 5; the mounting chamber 53 is arranged near the suction chamber 51 on one side The cleaning component 3 includes a No. 1 motor 31, a rotating shaft 32, a cleaning member 33, a water pump 34, a water replenishing assembly 35 and a water tank 36; the water tank 36 is arranged on the mounting frame 2; the water tank 36 is fixedly connected to the mounting frame 2; the cleaning member 33 is arranged in the mounting cavity 53; the rotating shaft 32 passes through the cleaning member 33; the rotating shaft 32 is fixedly connected to the cleaning member 33; the two ends of the rotating shaft 32 are respectively rotatably connected to the mounting frame 2; the water pump 34 is symmetrically arranged on the mounting frame 2; the water pump 34 and The mounting frame 2 is fixedly connected; one end of the water pump 34 is connected to the suction chamber 51 through the No. 1 pipe 37; one end of the No. 1 pipe 37 is connected to the water pump 34; the other end of the No. 1 pipe 37 is provided with a filter 38; one end of the filter 38 is connected to the No. 1 pipe 37; the other end of the filter 38 is connected to the suction chamber 51; a vertical pipe structure 371 is provided on the No. 1 pipe 37; the vertical pipe structure 371 is connected to the water tank 36; the other end of the water pump 34 is connected to the discharge chamber 52; The seal 4 is arranged at the lower end of the mounting frame 2; the seal 4 is fixedly connected to the lower end of the mounting frame 2; the seal 4 is used to achieve sealing between the sealing cover 5 and the road surface; the No. 1 motor 31 is arranged on the mounting frame 2; the No. 1 motor 31 is fixedly connected to the mounting frame 2; the rotating shaft of the No. 1 motor 31 and the rotating shaft 32 are driven by a belt; the water replenishing component 35 is arranged in the sealing cover 5; the water replenishing component 35 is connected to the sealing cover 5; the water replenishing component 35 is used to achieve automatic water replenishment into the sealing cover 5.

[0042] During operation, the road maintenance vehicle is driven onto the road surface that needs to be cleaned, so that the lower end of the sealing member 4 is pressed against the road surface, thereby forming a sealed space between the sealing cover 5 and the road surface, and then water is injected into the sealed space. After the injection of water is completed, the water pump 34 works, and then the water pump 34 generates suction force on the water in the suction chamber 51, thereby sucking the water in the suction chamber 51 into the water pump 34, and then the water re-enters the discharge chamber 52, thereby circulating the water in the sealing cover 5 (the water in the sealing cover 5 continuously enters the water pump 34 from the suction chamber 51, and then enters the sealing cover 5 from the discharge chamber 52). The water continuously flushes the road surface during the circulation process, thereby continuously flushing the stains and debris on the road surface, thereby removing the stains and debris on the road surface, thereby achieving road cleaning. The road surface is cleaned, and the road maintenance vehicle moves forward at the same time, thereby achieving the cleaning of the entire road surface; by setting the cleaning member 33, the water flushes the road surface while the No. 1 motor 31 rotates, and then the rotating shaft 32 is driven to rotate through the belt, and then the cleaning member 33 is driven to rotate, and then the cleaning structure of the cleaning member 33 rubs the road surface, and then the stubborn stains on the road surface are brushed off, thereby achieving the cleaning of stubborn stains, thereby improving the cleaning effect of the road maintenance vehicle, and thereby improving the cleanliness of the road surface; when the water in the sealing cover 5 is reduced (water leaks from the gap between the sealing member 4 and the road surface, and the road surface absorbs water, etc., which will reduce the water volume), the water pump 34 will reduce the water suction effect, thereby reducing the water flow speed, thereby reducing the water flushing effect on the road surface, and by setting The water replenishment component 35 replenishes water into the sealing cover 5, so that the amount of water in the sealing cover 5 is kept within a certain range, so as to achieve reliable circulation of water, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thus achieving reliable operation of the road maintenance vehicle; by setting a filter 38 between the No. 1 pipe 37 and the suction chamber 51, the water entering the No. 1 pipe 37 is filtered and purified, so that the water re-entering the discharge chamber 52 is kept clean, thereby preventing the water in the sealing cover 5 from becoming more and more dirty, and thereby preventing the water from polluting the road surface after becoming dirty, thereby keeping the road surface clean, thereby improving the cleaning effect of the road maintenance vehicle; when the existing road cleaning vehicle cleans the road surface, the staff needs to hold a water gun to flush the road surface , a large amount of water is needed to flush the road surface, resulting in a waste of water resources, and the water cannot be controlled during the flushing process, which easily causes water to splash onto pedestrians, soiling their clothes and causing inconvenience to pedestrians. The present road maintenance vehicle realizes road flushing during the movement of the road maintenance vehicle, thereby avoiding the need for staff to flush the road surface with a handheld water gun, thereby reducing the workload of the staff and improving the flushing efficiency, thereby saving time. By providing 4 sealing members, the water can flush the road surface in a relatively sealed space, thereby saving flushing water and thereby saving water resources. At the same time, the sealing member 4 prevents water from splashing onto areas outside the sealing member 4, thereby preventing water from splashing onto pedestrians, thereby reducing the interference caused to pedestrians by road cleaning.

[0043] like Figures 4 to 7 As shown, the water replenishment component 35 includes a swing plate 351, a first elastic member 352 and a sensor 353; the swing plate 351 is arranged in the suction chamber 51; the swing plate 351 is hinged to the side wall of the suction chamber 51; the swing plate 351 is provided with a first elastic member 352; the first elastic member 352 is arranged at intervals; one end of the first elastic member 352 is fixedly connected to the swing plate 351; the other end of the first elastic member 352 is fixedly connected to the side wall of the suction chamber 51; the The sensor 353 is arranged under the swing plate 351; the sensor 353 is fixedly connected to the side wall of the suction chamber 51; a controller and a judge are arranged on the mounting frame 2; the controller and the judge are both fixedly connected to the mounting frame 2; the sensor 353 is communicated with the judge; the judge is communicated with the controller; a solenoid valve 354 is arranged on the vertical pipe structure 371; the solenoid valve 354 is fixedly connected to the vertical pipe structure 371; the solenoid valve 354 is communicated with the controller.

[0044] When the amount of water in the sealing cover 5 decreases, the water suction effect of the water pump 34 is weakened, thereby weakening the water circulation, thereby reducing the impact force of water on the swing plate 351, and then the swing plate 351 is rotated downward under the action of the elastic force of the No. 1 elastic member 352, thereby causing the swing plate 351 to contact the sensor 353, thereby increasing the pressure on the sensor 353, thereby triggering the sensor 353, and then the sensor 353 transmits the pressure signal to the judge, and then the judge compares the pressure on the sensor 353 with the calibrated pressure. When the pressure of the sensor 353 is greater than or equal to the calibrated upper limit pressure, the judge concludes that the sealing cover 5 is short of water, and then sends a water replenishment signal to the controller. After the controller receives the water replenishment signal, the controller opens the No. 1 solenoid valve 354, and then the water pump 34 produces water in the water tank 36. Suction is generated, and the water in the water tank 36 is sucked into the discharge chamber 52, thereby replenishing water to the sealing cover 5, thereby increasing the amount of water in the sealing cover 5, thereby increasing the suction effect of the water pump 34 on water, thereby increasing the flow of water, thereby increasing the impact of water on the swing plate 351, thereby causing the swing plate 351 to rotate upward, thereby reducing the pressure on the sensor 353. When the pressure of the sensor 353 is less than the calibrated lower limit pressure, the judge obtains a result that the amount of water is sufficient, and then sends a signal to the controller to stop replenishing water, and then the controller closes the solenoid valve 354, thereby stopping replenishing water into the sealing cover 5, thereby keeping the amount of water in the sealing cover 5 within a certain range, realizing reliable water circulation, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thereby realizing reliable operation of the road maintenance vehicle.

[0045] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the road maintenance vehicle also includes a lifting component 6; the lifting component 6 includes a fixing plate 61, a hydraulic cylinder 62, a guide column 63 and a second elastic member 64; a mounting plate 21 is provided on the mounting frame 2; the mounting plate 21 is fixedly connected to the mounting frame 2; the fixing plate 61 is provided on the maintenance vehicle body 1; the fixing plate 61 is fixedly connected to the maintenance vehicle body 1; the guide column 63 is provided on the fixing plate 61; the guide columns 63 are evenly spaced; the guide column 63 is slidably connected to the fixing plate 61; the lower end of the guide column 63 is fixedly connected to the mounting plate 21; the upper end of the guide column 63 is provided with a first limiting plate 631; the first limiting plate 631 is fixedly connected to the guide The guide column 63 is fixedly connected; the second elastic member 64 is arranged between the fixed plate 61 and the first limit plate 631; the second elastic member 64 is sleeved on the guide column 63; a mounting hole is arranged in the middle of the mounting plate 21; the hydraulic cylinder 62 is arranged on the fixed plate 61; the hydraulic cylinder 62 is fixedly connected to the fixed plate 61; the hydraulic piston rod passes through the fixed plate 61; the piston rod of the hydraulic cylinder 62 passes through the mounting hole; the piston rod of the hydraulic cylinder 62 is clearance-matched with the mounting hole; a second limit plate 212 is arranged under the mounting plate 21; the second limit plate 212 is fixedly connected to the end of the piston rod of the hydraulic cylinder 62; the hydraulic cylinder 62 is connected to the controller.

[0046] By setting the lifting component 6, when the road surface is not cleaned, the controller controls the hydraulic cylinder 62 to work, thereby retracting the piston rod of the hydraulic cylinder 62, thereby driving the mounting frame 2 to move upward, thereby driving the cleaning component 3 and the seal 4 to move upward, thereby separating the seal 4 from the road surface, thereby preventing the seal 4 from being pressed on the road surface during the transfer of the maintenance vehicle, thereby reducing the friction between the seal 4 and the ground, thereby slowing down the wear of the seal 4, thereby extending the service life of the seal 4; when the road surface is cleaned, the controller extends the piston rod of the hydraulic cylinder 62, thereby moving the mounting frame 2 downward, thereby moving the cleaning component 3 and the seal 4 toward the road surface, thereby forming a sealed space on the road surface where the seal 4 is pressed by the force of gravity, thereby facilitating the flushing of the road surface, thereby The road surface can be cleaned; through the clearance fit between the piston rod and the mounting hole, the mounting plate 21 and or the piston rod can slide relatively, so that the mounting frame 2 can move up and down. When the road maintenance vehicle passes over the raised road surface, the road surface exerts a force on the seal 4, so that the mounting frame 2 moves upward, thereby preventing the bottom of the mounting frame 2 from being stuck at the protrusion, thereby preventing the mounting frame 2 from being stuck at the protrusion and hindering the normal movement of the road maintenance vehicle, thereby achieving reliable movement of the road maintenance vehicle, thereby improving the applicability of the road maintenance vehicle. When the road maintenance vehicle passes over a concave road surface, the mounting frame 2 moves downward under the action of gravity, thereby making the seal 4 reliably squeezed on the road surface, thereby keeping the sealing cover 5 and the road surface sealed at all times, thereby achieving reliable flow of water, thereby improving the applicability of the road maintenance vehicle.

[0047] like Figures 4 to 7 As shown, a discharge port 511 is provided on the side wall of the suction chamber 51; a filter plate 512 is provided inside the discharge port 511; the filter plate 512 is fixedly connected to the side wall of the suction chamber 51; the filter plate 512 is inclined; a collecting cover 513 is provided outside the discharge port 511; the collecting cover 513 is fixedly connected to the outer wall of the suction chamber 51.

[0048] By providing the discharge port 511 and the filter plate 512, during the water circulation process, the water exerts a force on the debris on the road surface, thereby driving the debris to move. When the water and the debris pass through the filter plate 512, the water continues to flow upward from the mesh holes of the filter plate 512, while the debris is blocked under the filter plate 512, and then under the action of the water flow, the debris slides upward along the surface of the filter plate 512, and then the debris passes through the discharge port 511 and enters the collecting cover 513 (the collecting cover 513 is sealed and connected to the side wall of the suction chamber 51), and then the debris is collected, and then the debris is processed in a centralized manner, while reducing the debris in the water, thereby preventing the debris from hindering the flow of water, thereby realizing the reliable circulation of water, thereby ensuring the flushing of the road surface by water, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thereby realizing the reliable operation of the road maintenance vehicle.

[0049] like Figure 5 and Figure 7 As shown, a reflux hole 514 is provided on the side wall where the suction chamber 51 is connected to the collecting cover 513 ; the reflux holes 514 are arranged at even intervals; and the reflux holes 514 are arranged within the sealing range of the collecting cover 513 .

[0050] By setting the reflux hole 514, when the work stops, the water in the collection cover 513 flows into the suction chamber 51 through the reflux hole 514, and then all the water is discharged from the collection cover 513 before opening the collection cover 513, thereby preventing water accumulation when opening the collection cover 513, and making it convenient to clean up the debris in the collection cover 513.

[0051] like Figures 8 to 10 As shown, the sealing member 4 is a rectangular ring structure; the sealing member 4 is made of a flexible material; a through hole 41 is provided in the sealing member 4; the through holes 41 are arranged along the circumferential direction of the sealing member 4; and the through holes 41 are arranged at even intervals.

[0052] By providing a through hole 41 along the annular direction of the seal 4, the ability of the seal 4 to deform is increased, thereby improving the fit between the seal 4 and the road surface, thereby improving the sealing effect between the seal 4 and the road surface, thereby slowing down water loss, thereby extending the use time of water in the water tank 36, thereby extending the continuous working time of the road maintenance vehicle, and thereby improving the working efficiency of the road maintenance vehicle.

[0053] like Figure 8 As shown, the seal 4 is provided with a wear-resistant layer 42 on the outside; the wear-resistant layer 42 is in contact with the surface of the seal 4; and the wear-resistant layer 42 is replaceable.

[0054] By providing a replaceable wear-resistant layer 42, the seal 4 is prevented from directly contacting the road surface, thereby reducing the friction on the seal 4, thereby slowing down the wear of the seal 4, thereby extending the service life of the seal 4, thereby avoiding frequent replacement of the seal 4, and saving costs.

[0055] like Figures 8 to 10 As shown, the seal 4 is symmetrically provided with mounting grooves 43 on both sides thereof; the mounting grooves 43 are arranged along the circumferential direction of the seal 4; a magnetic strip 431 is arranged on the bottom surface of the mounting groove 43; the magnetic strip 431 is arranged along the circumferential direction of the seal 4; the magnetic strip 431 is cast together with the seal 4; the upper ends of the inner and outer circles of the wear-resistant layer 42 are provided with metal strips 421; the metal strip 421 is snapped into the mounting groove 43.

[0056] By setting installation grooves 43 on the inner and outer sides of the seal 4, the metal strips 421 on the upper ends of the inner and outer circles of the wear-resistant layer 42 are clamped in the installation grooves 43 to complete the installation of the wear-resistant layer 42, thereby facilitating the installation and removal of the wear-resistant layer 42, and thereby facilitating the replacement of the wear-resistant layer 42. By setting a magnetic strip 431, the magnetic strip 431 generates suction on the metal strip 421, thereby making the metal strip 421 reliably clamped in the installation groove 43, thereby achieving reliable connection between the wear-resistant layer 42 and the seal 4, thereby achieving reliable operation of the seal 4.

[0057] During operation, the road maintenance vehicle is driven onto the road surface that needs to be cleaned, so that the lower end of the sealing member 4 is pressed against the road surface, thereby forming a sealed space between the sealing cover 5 and the road surface, and then water is injected into the sealed space. After the injection of water is completed, the water pump 34 works, and then the water pump 34 generates suction force on the water in the suction chamber 51, thereby sucking the water in the suction chamber 51 into the water pump 34, and then the water re-enters the discharge chamber 52, thereby circulating the water in the sealing cover 5 (the water in the sealing cover 5 continuously enters the water pump 34 from the suction chamber 51, and then enters the sealing cover 5 from the discharge chamber 52). The water continuously flushes the road surface during the circulation process, thereby continuously flushing the stains and debris on the road surface, thereby removing the stains and debris on the road surface, thereby achieving road cleaning. The road surface is cleaned, and the road maintenance vehicle moves forward at the same time, thereby achieving the cleaning of the entire road surface; by setting the cleaning member 33, the water flushes the road surface while the No. 1 motor 31 rotates, and then the rotating shaft 32 is driven to rotate through the belt, and then the cleaning member 33 is driven to rotate, and then the cleaning structure of the cleaning member 33 rubs the road surface, and then the stubborn stains on the road surface are brushed off, thereby achieving the cleaning of stubborn stains, thereby improving the cleaning effect of the road maintenance vehicle, and thereby improving the cleanliness of the road surface; when the water in the sealing cover 5 is reduced (water leaks from the gap between the sealing member 4 and the road surface, and the road surface absorbs water, etc., which will reduce the water volume), the water pump 34 will reduce the water suction effect, thereby reducing the water flow speed, thereby reducing the water flushing effect on the road surface, and by setting The water replenishment component 35 replenishes water into the sealing cover 5, so that the amount of water in the sealing cover 5 is kept within a certain range, so as to achieve reliable circulation of water, thereby ensuring the flushing effect on the water road surface, thereby ensuring the cleaning effect of the road surface, and thus achieving reliable operation of the road maintenance vehicle; by setting a filter 38 between the No. 1 pipe 37 and the suction chamber 51, the water entering the No. 1 pipe 37 is filtered and purified, so that the water re-entering the discharge chamber 52 is kept clean, thereby preventing the water in the sealing cover 5 from becoming more and more dirty, and thereby preventing the water from polluting the road surface after becoming dirty, thereby keeping the road surface clean, thereby improving the cleaning effect of the road maintenance vehicle; when the existing road cleaning vehicle cleans the road surface, the staff needs to hold a water gun to flush the road surface , a large amount of water is needed to flush the road surface, resulting in a waste of water resources, and the water cannot be controlled during the flushing process, which easily causes water to splash onto pedestrians, soiling their clothes and causing inconvenience to pedestrians. The present road maintenance vehicle realizes road flushing during the movement of the road maintenance vehicle, thereby avoiding the need for staff to flush the road surface with a handheld water gun, thereby reducing the workload of the staff and improving the flushing efficiency, thereby saving time. By providing 4 sealing members, the water can flush the road surface in a relatively sealed space, thereby saving flushing water and thereby saving water resources. At the same time, the sealing member 4 prevents water from splashing onto areas outside the sealing member 4, thereby preventing water from splashing onto pedestrians, thereby reducing the interference caused to pedestrians by road cleaning.

[0058] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. A road surface maintenance vehicle, characterized in that: The maintenance vehicle comprises a maintenance vehicle body (1), a mounting frame (2), a cleaning component (3), a sealing member (4) and a sealing cover (5); the mounting frame (2) is arranged inside the maintenance vehicle body (1); the mounting frame (2) is connected to the maintenance vehicle body (1); the sealing cover (5) is arranged at the lower end of the mounting frame (2); the sealing cover (5) is fixedly connected to the mounting frame (2); a suction chamber (51) is arranged at one end of the sealing cover (5); a discharge chamber (52) is arranged at the other end of the sealing cover (5); a mounting chamber (53) is arranged at the lower end of the sealing cover (5); the mounting chamber (53) is arranged close to one side of the suction chamber (51); the cleaning component The component (3) comprises a first motor (31), a rotating shaft (32), a cleaning component (33), a water pump (34), a water replenishment component (35) and a water tank (36); the water tank (36) is arranged on the mounting frame (2); the water tank (36) is fixedly connected to the mounting frame (2); the cleaning component (33) is arranged in the mounting cavity (53); the rotating shaft (32) passes through the cleaning component (33); the rotating shaft (32) is fixedly connected to the cleaning component (33); both ends of the rotating shaft (32) are respectively rotatably connected to the mounting frame (2); the water pump (34) is symmetrically arranged on the mounting frame (2); the water pump (34) The water pump (34) is fixedly connected to the mounting frame (2); one end of the water pump (34) is in communication with the suction chamber (51) via a No. 1 pipe (37); one end of the No. 1 pipe (37) is in communication with the water pump (34); a filter element (38) is provided at the other end of the No. 1 pipe (37); one end of the filter element (38) is in communication with the No. 1 pipe (37); the other end of the filter element (38) is in communication with the suction chamber (51); a vertical pipe structure (371) is provided on the No. 1 pipe (37); the vertical pipe structure (371) is in communication with the water tank (36); the other end of the water pump (34) is in communication with the discharge chamber (52); The sealing member (4) is arranged at the lower end of the mounting frame (2); the sealing member (4) is fixedly connected to the lower end of the mounting frame (2); the sealing member (4) is used to achieve sealing between the sealing cover (5) and the road surface; the No. 1 motor (31) is arranged on the mounting frame (2); the No. 1 motor (31) is fixedly connected to the mounting frame (2); the rotating shaft of the No. 1 motor (31) and the rotating shaft (32) are driven by a belt; the water replenishing component (35) is arranged in the sealing cover (5); the water replenishing component (35) is connected to the sealing cover (5); the water replenishing component (35) is used to achieve automatic water replenishment in the sealing cover (5); The water replenishment component (35) includes a swing plate (351), a first elastic member (352) and a sensor (353); the swing plate (351) is arranged in the suction chamber (51); the swing plate (351) is hinged to the side wall of the suction chamber (51); the swing plate (351) is provided with a first elastic member (352); the first elastic member (352) is arranged at intervals; one end of the first elastic member (352) is fixedly connected to the swing plate (351); the other end of the first elastic member (352) is fixedly connected to the side wall of the suction chamber (51); The sensor (353) is arranged under the swing plate (351); the sensor (353) is fixedly connected to the side wall of the suction chamber (51); a controller and a judge are arranged on the mounting frame (2); the controller and the judge are both fixedly connected to the mounting frame (2); the sensor (353) is communicated with the judge; the judge is communicated with the controller; an electromagnetic valve (354) is arranged on the vertical pipe structure (371); the electromagnetic valve (354) is fixedly connected to the vertical pipe structure (371); the electromagnetic valve (354) is communicated with the controller.

2. A road surface maintenance vehicle according to claim 1, characterized in that: The road maintenance vehicle further comprises a lifting component (6); the lifting component (6) comprises a fixing plate (61), a hydraulic cylinder (62), a guide column (63) and a second elastic component (64); a mounting plate (21) is provided on the mounting frame (2); the mounting plate (21) is fixedly connected to the mounting frame (2); the fixing plate (61) is provided on the maintenance vehicle body (1); the fixing plate (61) is fixedly connected to the maintenance vehicle body (1); the guide columns (63) are provided on the fixing plate (61); the guide columns (63) are evenly spaced; the guide columns (63) are slidably connected to the fixing plate (61); the lower end of the guide column (63) is fixedly connected to the mounting plate (21); the upper end of the guide column (63) is provided with a first limiting plate (631); the first limiting plate (631) is fixedly connected to the first limiting plate (631); The guide column (63) is fixedly connected; the second elastic member (64) is arranged between the fixed plate (61) and the first limiting plate (631); the second elastic member (64) is sleeved on the guide column (63); a mounting hole is arranged in the middle of the mounting plate (21); the hydraulic cylinder (62) is arranged on the fixed plate (61); the hydraulic cylinder (62) is fixedly connected to the fixed plate (61); the hydraulic piston rod passes through the fixed plate (61); the piston rod of the hydraulic cylinder (62) passes through the mounting hole; the piston rod of the hydraulic cylinder (62) is loosely matched with the mounting hole; a second limiting plate (212) is arranged under the mounting plate (21); the second limiting plate (212) is fixedly connected to the end of the piston rod of the hydraulic cylinder (62); the hydraulic cylinder (62) is connected to the controller.

3. A road surface maintenance vehicle according to claim 2, characterized in that: A discharge port (511) is provided on the side wall of the suction chamber (51); a filter plate (512) is provided inside the discharge port (511); the filter plate (512) is fixedly connected to the side wall of the suction chamber (51); the filter plate (512) is arranged at an angle; a collection cover (513) is provided outside the discharge port (511); the collection cover (513) is fixedly connected to the outer wall of the suction chamber (51).

4. A road surface maintenance vehicle according to claim 3, characterized in that: A reflux hole (514) is provided on the side wall connecting the suction chamber (51) and the collection cover (513); the reflux holes (514) are arranged at even intervals; and the reflux holes (514) are arranged within the sealing range of the collection cover (513).

5. A road surface maintenance vehicle according to claim 4, characterized in that: The sealing member (4) is a rectangular annular structure; the sealing member (4) is made of a flexible material; a through hole (41) is provided in the sealing member (4); the through hole (41) is arranged along the annular direction of the sealing member (4); and the through holes (41) are arranged at even intervals.

6. A road surface maintenance vehicle according to claim 5, characterized in that: The seal (4) is provided with a wear-resistant layer (42) on the outside; the wear-resistant layer (42) is in contact with the surface of the seal (4); and the wear-resistant layer (42) is replaceable.

7. A road surface maintenance vehicle according to claim 6, characterized in that: The sealing member (4) is symmetrically provided with mounting grooves (43) on both inner and outer sides; the mounting grooves (43) are arranged along the circumferential direction of the sealing member (4); a magnetic strip (431) is arranged on the bottom surface of the mounting groove (43); the magnetic strip (431) is arranged along the circumferential direction of the sealing member (4); the magnetic strip (431) and the sealing member (4) are cast together; the upper ends of the inner and outer circles of the wear-resistant layer (42) are provided with metal strips (421); the metal strip (421) is engaged in the mounting groove (43).

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