62 results about "Road sweeper" patented technology

This invention relates to a high-speed sweeper, comprising a dust collection device (6) and a sweeping device (7) disposed below a chassis (1); the dust collection device (6) includes a plurality of suction ports (62), a front rubber plate (63), a side rubber plate (64), and a roller brush (67) mounted on a suction cup body (61); the sweeping device (7) includes two front sweeping discs (71) and two rear sweeping discs (72); wherein the outermost edges of the two rear sweeping discs (72) respectively cover more than 1 / 3 of the area from the center to the outermost edge of the corresponding front sweeping disc (71) in the left and right directions; the suction area of ​​the suction cup body (61) respectively covers more than 1 / 4 of the area from the center to the outermost edge of the rear sweeping discs (72). This invention provides a high-speed sweeper with fast suction speed, no missed areas during high-speed sweeping, high sweeping efficiency, and good cleaning effect.

The application discloses a kind of pneumatic dust removal systems of rolling sweeping road sweeper, comprising: lifting frame, side rubber, rolling brush, dust suction fan, filter dust box, dust collection box, front rubber, rolling brush box, dust baffle, rolling brush box is opened in front upper portion one air inlet, when the rolling brush works, dust in the rolling brush box can be effectively guided into filter cartridge box and dust collection box inside, dust baffle is arranged on the upper portion of dust collection box, dust effectively increased to the inside of dust collection box, reduce the dust into filter cartridge, extend the plugging time of filter cartridge, enhance the filtering effect of filter cartridge to reduce the dust in the process of operation, effectively avoid the influence on passerby and secondary pollution to environment in operation, improve the cleaning quality of road sweeper.

1. The name of the design product: road sweeper. 2. The use of the design product: the product is used for road sweeping operation. 3. The design points of the design product: the shape of the product, the combination of shape and color, and the combination of shape, pattern and color. 4. The picture or photo that best shows the design points: perspective view 1. 5. The design claimed contains color. 6. The top view is omitted because the part is not easy to see or cannot be seen when in use.

The utility model discloses a sweeper garbage collection device based on unmanned operation, and relates to the field of garbage collection. The device comprises a garbage can, a connecting ring pipe is arranged on the garbage can, an air pipe, a high-pressure fan, a rolling brush, a pulse air pressure cabin and a filter screen are arranged outside the connecting ring pipe, the air pipe is fixedly connected to the front end of the connecting ring pipe, the high-pressure fan is installed at the top end of the connecting ring pipe and provides suction force for garbage collection, and the rolling brush is rotationally connected to the bottom of the air pipe. The pulse air pressure cabin is installed at the side end of the air pipe and used for spraying air into the air pipe, and the filter screen is fixedly connected to the upper end of the connecting ring pipe and used for intercepting garbage to be conveyed upwards continuously. According to the device, through cooperation of the pulse system and the high-pressure fan, the garbage collection efficiency and quality are effectively improved, thorough garbage collection is ensured, meanwhile, garbage and gas are separated through the filter screen, the possibility that the garbage collection device is blocked is reduced, and the stability of the device is improved.

The utility model discloses garbage separation equipment of a sweeping truck or a washing and sweeping truck, which belongs to the technical field of garbage separation and comprises a shell, a first flushing device, a first conveying device, a second conveying device, a first separation tank and a second separation tank. The first separating tank is communicated with the feeding port and the first discharging port, the second separating tank is communicated with the second discharging port, a filtering piece is arranged between the first separating tank and the second separating tank, the first flushing device is installed at the feeding port, the first conveying device is installed in the first separating tank, and the second conveying device is installed in the second separating tank. Liquid is sprayed through the first cleaning device, the effects of dust falling, liquid supplementing and garbage cleaning are achieved, mud and sand can be separated into water and enter the second separation tank through the filtering piece, the separation equipment is simple in structure and low in cost, and the mud and sand separation effect can be improved by cleaning garbage through the first flushing device.

The invention provides automatic cleaning equipment for a livestock trough and a sweeper truck, and relates to livestock feeding equipment, and the equipment comprises a mounting frame which can be fixedly mounted on one side of the sweeper truck; the rear end of the rotating frame is rotatably connected with the mounting frame; the suction pipe is a foldable corrugated pipe, is connected with negative pressure pumping equipment and is fixedly mounted on the rotating frame; the sucking disc mechanism comprises a disc body and a plurality of rollers arranged at the bottom of the disc body; the lifting mechanism drives the sucker mechanism to lift; and the swinging mechanism drives the rotating frame to rotate. The device has the beneficial effects that the swing mechanism drives the suction cup mechanism to extend outwards, the lifting mechanism drives the suction cup mechanism to descend and fall into the livestock feed trough, the road sweeper walks to drive the suction cup mechanism to walk in the livestock feed trough, residual feed in the livestock feed trough is adsorbed and collected under the negative pressure action of a suction pipe, and automatic cleaning of the residual feed in the livestock feed trough is achieved; the working efficiency is greatly improved; the cleaning degree of the trough is improved, and feed health is guaranteed.

The utility model provides a preceding-stage sweeping system of a road sweeper, which is characterized in that a left liftable garbage sweeping head and a right liftable garbage sweeping head are hung below the middle part of a girder of a frame through a hanging bracket, and an inclined garbage conveying belt with a low front part and a high rear part is arranged at the middle line position behind the two garbage sweeping heads; the front end of the garbage conveying belt extends into the overlapping position of the strip brushes on the adjacent sides of the two garbage cleaning heads, and the two garbage cleaning heads are provided with limiting mechanisms so that the strip brushes can be automatically lifted when rotating to pass through the front end of the garbage conveying belt. In the working process, the strip brushes with the two garbage sweeping heads rotating reversely can continuously sweep garbage from the side of the vehicle body to the middle line of the vehicle body and feed the garbage into the front end of the garbage conveying belt which is obliquely erected, and then the garbage conveying belt conveys the garbage to the rear upper portion. The system is short in garbage sweeping and conveying path, reasonable in structural connection, high in working efficiency and simple in component, the manufacturing cost can be reduced, and the garbage sweeping head can move out of the left side or the right side of the vehicle body by a certain distance to sweep curbstone corners on the two sides of a road.

The utility model discloses a dust suction port, fallen leaf collecting device and sweeper truck relates to urban cleaning technical field, including shell and suction port flashboard, the interior of shell is provided with a dust suction channel, the dust suction channel vertically extends upwards from shell bottom, the bottom of dust suction channel is provided with bottom opening, the side face of dust suction channel close to bottom is provided with suction port, and the suction port flashboard is provided with the bottom opening. The bottom opening is connected and communicated with the suction port, a suction port insertion plate is arranged at the suction port, the suction port insertion plate can move towards the suction port to cover the suction port and move away from the suction port to expose the suction port, and the size of the suction port can be changed through the shape and the structure of the suction port to prevent blockage; the dust collection effect of the fallen leaf collecting device using the dust collection opening and the sweeping machine is greatly improved.

The utility model relates to the technical field of electric road sweeping vehicles, and provides a pneumatic pipe cleaning anti-freezing device for an electric road sweeping vehicle, which comprises a pneumatic pipe cleaning anti-freezing component, the pneumatic pipe cleaning anti-freezing component consists of a protective shell, a three-way ball valve and an air pipe, the three-way ball valve is mounted in the protective shell, and the air pipe is mounted in the protective shell. Two straight-through ports of the three-way ball valve are connected with the water tank and the water filter through pipelines respectively, one side of the water filter is connected with the water drainage ball valve through a pipeline, the top end of the water filter is connected with the water-cooled oil cooler through a pipeline, the water-cooled oil cooler is connected with the water pump through a pipeline, and the water pump is connected with the spray head through a pipeline. By means of the filtering structure and the filtering net, a high-pressure air source sprayed out of the air pipe can be filtered, the situation that dust and impurities block the pipeline is avoided, the first adjusting lead screw is rotated, the first sealing disc and the second sealing disc are separated, the filtering net is taken out of the groove, and the purpose of replacing the filtering net can be achieved.

The embodiment of the application provides a fan system and a road sweeper, and relates to the technical field of sanitation sweepers. The road sweeper comprises a fan system, the fan system comprises a first fan module, a second fan module and a converging air outlet piece. The first fan module has a first air outlet channel, the second fan module has a second air outlet channel, the converging air outlet piece comprises a converging section and first and second air outlet channels arranged at an angle and connected in communication, one end of the first air outlet channel is connected with the first air outlet channel, the other end of the first air outlet channel is connected with the converging section, one end of the second air outlet channel is connected with the second air outlet channel, and the other end of the second air outlet channel is connected with the converging section. The cross-sectional dimension of the converging section is greater than the cross-sectional dimension of the first air outlet channel and the cross-sectional dimension of the second air outlet channel, and the converging air outlet piece can converge the first air outlet channel and the second air outlet channel and reduce the loss when air flows converge. While meeting the high-speed road sweeper's demand for large air volume, the space occupation of the fan system is compressed.

The embodiment of the utility model provides a kind of suction nozzle and road sweeper, it is related to road sweeper field.The suction nozzle is used for road sweeper, it includes suction nozzle body and rotating shaft structure, rotating shaft structure is connected in suction nozzle body, rotating shaft structure includes rotating shaft, first bearing, first rotary seat, reset piece, driving part, second bearing and second rotary seat, first bearing is sleeved in rotating shaft, first rotary seat is sleeved in first bearing, first rotary seat is connected by first bearing and rotating shaft, first rotary seat includes connecting plate, reset piece and connecting plate are connected, and reset piece is used to and water jet rod is connected, driving part and connecting plate are connected to drive connecting plate movement, second bearing is sleeved in rotating shaft, and second bearing and first bearing are up and down distribution.First rotary seat and second rotary seat form up and down structure by first bearing and second bearing, reduce the overall outline dimension of rotating shaft structure, reduce the number of bearing, simplify overall structure, realize light weight design.

The utility model relates to the technical field of road sweeping, in particular to a small road sweeper efficient dust collection filtering device which comprises a sweeping vehicle body, a fixed box is fixedly installed on the inner wall of the sweeping vehicle body, and a movable box is connected to the inner wall of the sweeping vehicle body in a sliding mode. The cleaning device has the advantages that through cooperation of the cleaning vehicle body, the fixed box, the movable box, the opening, the sealing seat, the filter screen, the corrugated pipeline, the air suction cover, the motor, the lead screw and the connecting seat, the lead screw can be driven to rotate through operation of the motor, so that the movable box and the fixed box are separated; and through cooperation of a sealing groove, a first sealing block and an extrusion block, the sealing performance between the fixed box and the movable box can be improved, and the sealing effect of the movable box and the fixed box is improved. And the dust collecting and filtering effects can be better when the sweeping vehicle conducts sweeping operation.

The application discloses a dust removal system and a dry road sweeper, and relates to the dust removal field. The dust removal system comprises a dust removal device, a suction device and a self-cleaning device. The dust removal device is provided with a separation cavity, an air inlet, a filter outlet and a self-cleaning opening. The outlet of the suction device is connected with the air inlet, and the self-cleaning device is configured to cooperate with the self-cleaning opening to clean the dust removal device. The self-cleaning device can selectively connect the dust removal device and the suction device to realize the self-cleaning of the dust removal system or the switching of the dust removal mode. According to the dust removal system and the dry road sweeper, dust can be cleaned and maintained by using the suction mode, and the dust raising is low. Meanwhile, the road sweeper can be cleaned and maintained at any time and any place by using the road sweeper as a power source and the self-cleaning device, and the suction performance is better.

The utility model provides a kind of automatic driving road sweeper with solid-liquid separation device, including garbage collection box, the garbage collection box front end is equipped with box door by multiple hinges, the garbage collection box upper end is equipped with hydraulic rod, the movable end of hydraulic rod is equipped with pressing plate, and the pressing plate is horizontally located in the garbage collection box inside upper end, garbage inlet is opened in the garbage collection box right end upper side, the garbage collection box right end is equipped with two bending seats by multiple bolts, the design solves the existing sweeper due to lack of special solid-liquid separation device, garbage is in the form of "mud" after collection, leading to garbage storage tank volume utilization rate is low;And liquid is easy to leak and pollute the road in the process of transportation, the utility model adopts garbage collection and hydraulic structure, can collect, compress and multiple solid-liquid separation to the solid-liquid mixed road garbage, to achieve the effective separation of liquid, solid particle and solid garbage.

The utility model relates to the technical field of road sweeping brushes, and provides a road sweeping brush with an anti-collision function, which comprises a support frame, a plurality of groups of mounting holes are uniformly arranged on the support frame, a protection device for protecting the road sweeping brush is arranged on the support frame, and a cleaning device for preventing dust particles from diffusing is arranged on the support frame. The supporting column rotates to drive the gear to rotate, the gear rotates to drive the gear rings on the two sides of the gear to rotate, the gear rings synchronously rotate on the reciprocating lead screw so that the reciprocating lead screw can do up-and-down reciprocating motion on the supporting frame, and the reciprocating lead screw drives the supporting ring and the protective ring on the supporting ring to move up and down. Under the condition that work of the sweeping brush is not affected, the protection range of the sweeping brush is expanded, and the situation that the sweeping brush is damaged due to the fact that the sweeping brush collides with other objects during work is avoided.

The utility model discloses a road sweeper rolling brush structure easy to maintain, which comprises a housing, the housing comprises a roller cavity and a garbage throwing and sweeping cavity which are obliquely arranged, the garbage throwing and sweeping cavity is formed at the upper end of the roller cavity, a plurality of rollers are arranged in the roller cavity, the rollers are rotatably connected between two inner walls of the housing, and the garbage throwing and sweeping cavity is arranged in the housing. A side cover plate assembly is fixed to one side of the housing, a positioning plate is fixed to the other side of the housing, a belt wheel assembly is fixedly inserted into the positioning plate, a second inserting shaft is connected to the side cover plate assembly through a bearing, the diameter of the side cover plate assembly is larger than that of the roller, the second inserting shaft is inserted into one end of the roller, and the roller is connected with the belt wheel assembly through a bearing. The roller is positioned through the first inserting shaft and the second inserting shaft, and meanwhile, the roller is inserted into the housing from the side cover plate assembly, so that the roller is convenient to disassemble and maintain, and the maintenance efficiency is improved.

The embodiment of the present specification provides a smart city traffic road cleaning management method and an Internet of Things system. The method is executed by a traffic management platform, and includes: acquiring a road video of a time period captured by a camera on a road; extracting a target image from the road video, and processing the target image through a prediction model to predict road cleanliness; processing the road video to predict traffic corresponding to the road; and controlling a road sweeper to clean the road based on the predicted traffic and road cleanliness. The smart city traffic road cleaning management method according to some embodiments of the present specification can realize real-time monitoring of road health cleaning, can timely process cleaning conditions that may affect traffic safety and cause traffic congestion, and can allocate road sweepers on demand, thereby saving labor costs and social resources.

Method for regulating the operation of a cleaning equipment on a self-propelled road cleaning vehicle. The invention relates to a method for regulating the operation of a cleaning equipment fitted to a self-propelled road cleaning vehicle, as a function of the forward speed Va of said vehicle, said comprising a rotating circular brush, means for vacuuming dust and / or waste, and means for spraying said brush with water, said equipment being capable of moving from an inactive position, raised relative to the ground, to an active working position in which it is lowered, said brush in contact with the ground, and vice versa.In this process, the positioning of the equipment and the rotation of the brush are managed according to a correlation with the vehicle speed Va, based on at least one speed threshold chosen from at least Vamin (minimum forward speed) and Vamax (maximum forward speed) previously defined. Figure for the abbreviation: Fig. 1.

The utility model relates to road engineering technical field provides a road sweeper for road engineering, include: sweeping roller subassembly, conveyance subassembly, recycling box subassembly, sweeping vehicle body, sweeping roller drive subassembly, conveyance drive subassembly and shovel ash and keep out ash cross board, sweeping roller subassembly sets up in sweeping vehicle body front side, and conveyance subassembly is obliquely arranged in sweeping roller subassembly back and uses with sweeping roller subassembly, recycling box subassembly sets up in conveyance subassembly back, sweeping roller drive subassembly and conveyance drive subassembly set up in sweeping vehicle body, sweeping roller drive subassembly output and sweeping roller subassembly input connection, conveyance drive subassembly output and conveyance subassembly input connection, shovel ash and keep out ash cross board set up in sweeping vehicle body front side lower part, the utility model discloses reasonable in structure, convenient to use can send the dust and sundries of sweeping into recycling box subassembly to prevent dust more or meet the problem of the blockage when big piece dust or sundries.

The utility model relates to a ball cage type coupler double-fan power transmission mechanism in the technical field of road sweeping equipment, which comprises a base, a first fan and a second fan are arranged on the base, the first fan and the second fan are connected through a ball cage type coupler, and the first fan is connected with a power part. The power part outputs power to the first fan, the first fan conveys power to the second fan through the ball cage type coupler, the first fan and the second fan work to sweep the road surface below, and the sweeping efficiency is improved.

The utility model relates to the technical field of special vehicles, and discloses a pure electric road sweeper with a double-fan structure, which comprises a frame, a garbage can, a sweeping device, a first fan, a second fan and a driving motor, the first fan and the second fan are used for generating negative pressure in a box body of the garbage can, and the driving motor is used for directly driving the first fan and the second fan. The first draught fan and the second draught fan are connected to the two ends of a rotating shaft of the driving motor in a direct drive mode correspondingly and communicate with an inner cavity of the dustbin through a first pipeline and a second pipeline correspondingly. The bottom of the garbage can is connected with a suction structure used for sucking garbage into a box of the garbage can, and the suction structure is arranged close to the sweeping equipment. According to the utility model, motor rotation stability and vehicle energy efficiency are effectively improved.

The road sweeper rolling brush device with the self-cleaning function comprises a driving device structure, a cleaning brush structure, a telescopic frame structure and a replacement brush structure, the cleaning brush structure is fixedly installed on the surface of the driving device structure, the telescopic frame structure is fixedly installed on the surface of the driving device structure, and the replacement brush structure is fixedly installed on the surface of the cleaning brush structure. According to the road sweeper rolling brush device with the self-cleaning function, the driving device structure and the cleaning brush structure are arranged to conveniently sweep dust on the ground, and the driving device structure and the cleaning brush structure are connected to facilitate mounting, dismounting, replacement and maintenance; the cleaning brush structure is convenient to clean by arranging the telescopic frame structure and the replacement brush structure, so that sundries or branches wound on the surface are cleaned and fall, and the cleaning brush structure is driven by the electric push rod, so that the surface of the cleaning brush structure is cleaned by the mounting frame provided with the replacement brush structure.

The invention relates to the technical field of sweeping equipment of environment-friendly vehicles, and discloses a sweeping mechanism and a sweeping method of a road sweeper, the sweeping mechanism comprises a lifting assembly, a transverse moving assembly and a cleaning and suction main body, the lifting assembly comprises a mounting side plate and a first oil cylinder, and the inner side of the mounting side plate is fixedly connected with a transverse column; a first hinge is fixedly mounted on the outer side of the transverse column, an L-shaped column is hinged to the transverse column through the first hinge, and a mounting plate is fixedly connected to the bottom of the L-shaped column. Compared with the prior art, the road cleaning and sucking device has the following advantages and effects that the cleaning and sucking main body can achieve the cleaning effect on a road and can also conduct air drying on the road, so that the device has high convenience and a powerful cleaning effect when cleaning the road.

The utility model provides a raised dust treatment system of a road sweeper. The raised dust treatment system is characterized in that corresponding raised dust suction hoods are respectively arranged above the periphery of each sweeping part of the road sweeper; a raised dust processor and a clear water tank are arranged above the middle part of the frame, and a sewage tank is arranged below the rear part of the frame; the interior of the upper-layer cavity of the raised dust processor is sequentially divided into an air inlet chamber, a dust removal chamber and an air outlet chamber from right to left through two waterproof and breathable shutters. A primary water pump, a central pipeline water purifier, a water storage tank and a secondary water pump are arranged on the lower layer of the raised dust processor; dust blocking rubber plates are installed between the front wheels and the rear wheels on the left side and the right side of the vehicle bottom. The flying dust treatment system can basically and completely absorb flying dust raised during road sweeping, the purification treatment effect on spraying dust removal sewage is good, water pumped back for repeated use is not prone to causing blockage of a spraying dust removal nozzle of the dust removal chamber, in addition, the water storage tank is provided with an automatic water supplementing design, and circulating water can be automatically supplemented in time.

This invention provides a brushing device for a road sweeper's garbage sweeping head, comprising a brushing assembly and a limiting assembly. The brushing assembly has a brush head mounting base connected to the lower part of the main shaft, and a set of brush head modules are hinged to the brush head mounting base. A strip brush and a positioning pulley are mounted on the front end of the brush handle of each brush head module. The limiting assembly includes a central support frame and a limiting ring frame. The central support frame is rotatably supported and connected to the middle section of the main shaft. The limiting ring frame has a pair of limiting rings connected to the central support frame, and the limiting rings have a horizontal section, an upward-curving section, and an obstacle-crossing section. The positioning pulleys of each brush head module are rolled and supported between the two limiting rings. When rotating, the brush head modules of this brushing device can automatically raise, cross obstacles, and lower themselves by following the undulations of the end faces of the two limiting rings. The rotation is lighter, more continuous, and smoother, reducing power consumption and rotational noise. Furthermore, the brush bristles of the brush head module are not impacted when crossing the longitudinal sliding frame beside the garbage conveyor belt, reducing bristle wear.

The application provides an automatic obstacle-avoiding unmanned road sweeper, and belongs to the technical field of unmanned environmental sanitation equipment. The automatic obstacle-avoiding unmanned road sweeper comprises a vehicle-mounted heterogeneous multi-sensor sensing unit, a main controller, a chassis, a linkable cleaning operation unit and a safety redundancy unit; the main controller is internally provided with a coverage rate calibration module, a two-dimensional sensing processing module, a coverage rate priority obstacle-avoiding decision module, a binding type path planning module and a synchronous linkage control module which are sequentially connected by signals. The automatic obstacle-avoiding unmanned road sweeper can simultaneously consider high-definition scanning coverage rate and high obstacle-avoiding safety, linkage of obstacle-avoiding driving and cleaning operation, and has a multi-stage safety redundancy design.

A side brush assembly and an anti-splashing assembly are arranged between front wheels and rear wheels on the left side and the right side of a vehicle chassis, a water spraying frame is arranged on the front side of a vehicle head of the vehicle chassis, a water tank and a material storage compartment are arranged on the rear side of the vehicle head, and a first partition plate is arranged in the material storage compartment and divides a cavity of the material storage compartment into a mounting cavity and a garbage recycling cavity; an engine and an air blower are arranged in the mounting cavity, a first ventilation pipe is arranged at the top of the mounting cavity, one end of the first ventilation pipe is communicated with an air inlet of the air blower, and the other end of the first ventilation pipe penetrates through the first partition plate to be connected with a filter at the top of the garbage recycling cavity; an air storage chamber is arranged on the outer bottom face of the storage compartment, a suction cup is arranged on the automobile chassis, an inlet in one side of the air storage chamber is connected with an air outlet of an air blower, the other side of the air storage chamber is connected with an air blowing pipe of the suction cup through a second ventilation pipe, a garbage suction pipe of the suction cup is connected with a lower port of the suction pipe, and a material door and an anti-collision bag are arranged on the rear side of the storage compartment.

The invention provides a novel road sweeper. The novel road sweeper comprises a sweeper body, a garbage can, a battery pack, a garbage conveying device, an electric push rod, a connecting angle plate support, a garbage sweeping device and a dustproof outer cover device. A battery pack is arranged at the front part of the vehicle body; the front section of the garbage conveying device is obliquely arranged in the middle of the front left and right of the vehicle body, the rear section integrally extends to the middle above the garbage can according to the front section inner inclination angle, and a supporting groove frame of the garbage conveying device continuously extends to the middle behind the vehicle body; electric push rods are symmetrically arranged below the front end of the vehicle body and close to the two outer sides of the garbage conveying device, and the front ends of the electric push rods are installed on the garbage sweeping device. A connecting angle plate bracket is arranged between the garbage conveying device and the garbage cleaning device; garbage cleaning devices are arranged on the left and right of the front end of the garbage conveying device; dustproof outer cover devices are arranged on the upper face and the outer side face of the garbage cleaning device.

The utility model relates to the technical field of environmental sanitation equipment, and provides a novel wide suction nozzle assembly for an electric sweeper truck, which comprises a frame, and an adjusting structure is fixed on one side of the bottom end of the frame. By arranging the adjusting structure and starting the servo motor, the servo motor rotates to drive the mounting base to rotate, the mounting base rotates to drive the suction nozzle body to rotate, the suction nozzle body rotates to adjust the garbage suction range of the suction nozzle body, the garbage collection efficiency is improved, the use height of the suction nozzle body can be adjusted through lifting of the first electric push rod, and the use is convenient. The distance between the suction nozzle body and the ground can be conveniently adjusted according to needs, one end of the suction nozzle body is externally connected with a suction fan and a garbage collecting box, the suction fan can suck impurities and dust into an air suction pipe through one end of the air suction pipe, and then the impurities and the garbage are conveyed to the garbage collecting box under the action of wind power. According to the novel wide suction nozzle assembly for the electric road sweeper, the function of conveniently collecting garbage is achieved, and the working efficiency of the novel wide suction nozzle assembly for the electric road sweeper during use is improved.

The application discloses a self-cleaning device, a dust removal system and a road sweeper. The self-cleaning device comprises a shell assembly, an inner shell assembly and a cleaning assembly. The shell assembly is provided with a negative pressure cavity and a suction port communicated with the negative pressure cavity. The inner shell assembly is sleeved in the shell assembly and is retractable along the axial direction of the shell assembly between a first position and a second position. The inner cavity of the inner shell assembly is communicated with the negative pressure cavity. The peripheral wall of the inner shell assembly is provided with filter screen holes. The filter screen holes are exposed outside the shell assembly when the inner shell assembly is in the first position. The inner shell assembly is retracted into the shell assembly relative to the first position when the inner shell assembly is in the second position. The cleaning assembly is connected with the shell assembly and is arranged to move along the peripheral surface of the inner shell assembly to clean the filter screen holes when the inner shell assembly moves between the first position and the second position. The inner shell assembly of the self-cleaning device is retractable in the shell assembly, the filter screen holes of the inner shell assembly are cleaned by the cleaning assembly, and the self-cleaning function is realized.