683 results about "Road sweeper" patented technology

The invention relates to a sweeping and sucking type wet and dry road sweeper, belonging to the special-purpose vehicle technology field. The road sweeper comprises an automobile chassis. A main fan is arranged at the upper part of the beam in the middle of the chassis and a rotary sweeper brush is installed at the lower part. A blowback type suction nozzle is arranged at the back of the rotary sweeper brush. The upper part at the back of the chassis is provided with a dedusting and dust collecting device and a water tank. The water tank is connected with nozzle at the rotary sweeper brush. The dedusting and dust collecting device comprises a dustbin and a dust filtering chamber. One part of the dustbin is communicated with the suction nozzle through a dust pipe and the other part is connected with an air inlet of the centrifugal separator through a filter screen. The air outlet of the centrifugal separator is communicated with the inlet of the main fan. The dust outlet goes to the back door of the dustbin. The outlet of the main fan is communicated with the blowback mouth at the suction nozzle by the blowback pipe and is communicated with the air outlet and the dust filtering chamber. The upper part of the dust filtering chamber is communicated with the air by a filter barrel. The road sweeper can sweep in a dry way or a wet way, is not limited by the climatic condition, combines suction and sweeping, has high cleaning rate, simple structure and easy sanitary tipping.

The invention discloses an urban road sweeper which comprises a sweeper body. A rear axle is rotatably arranged at the bottom of the sweeper body, and driving wheels are fixedly mounted at the two ends of the rear axle. A front axle is rotatably arranged at the bottom of the sweeper body, and front wheels are fixedly mounted at the two ends of the front axle. A rotatable shaft is vertically rotatably arranged on the sweeper body in a penetrating mode, and an incomplete gear is fixedly mounted at the upper end of the rotatable shaft in a sleeving mode. A fixed shaft is rotatably sleeved with adriven gear connected with a second rack in an engaged mode, and a swing rod is fixedly mounted on the driven gear. A plurality of sweeping brush plates are arranged at the bottom of a sweeping rotating disc. According to the urban road sweeper, through driving of a driving motor, the driving wheels rotate, and the sweeper body moves accordingly; meanwhile, the second rack transversely moves backand forth along with a guiding rod to drive the swing rod to swing, and the sweeping rotating disc which is driven by a rotary motor to rotate is driven by the swing rod to swing to sweep the ground;and the ground is sufficiently swept while the sweeper body moves for forward traveling, the sweeping efficiency of the ground is improved, and operation is easy and convenient.

A power management system for a surface maintenance machine, such as a street sweeper is disclosed. The system includes a variable speed engine for transporting the surface maintenance machine, a hydraulic pump powered by the engine, a vacuum fan motor powered by the hydraulic pump, an engine speed sensor coupled to the engine, an electric proportional valve coupled between the hydraulic pump and the vacuum fan motor, said valve for selectively restricting a flow rate to the vacuum fan motor, and a control unit operatively coupled to the engine speed sensor and the proportional valve, said control unit receiving engine speed information from the engine speed sensor and communicating a predetermined signal to the proportional valve to control the flow rate to the vacuum fan motor as a function of engine speed. A method of managing engine power from a single-engine street sweeper is also disclosed.

The invention relates to an additional sweeping device of a road sweeper and the road sweeper. The additional sweeping device of the road sweeper comprises an extension arm assembly, a front arm assembly, a sweeping assembly and a first driving part (4), wherein the front arm assembly is arranged between the extension arm assembly and the sweeping assembly, a first end of the extension arm assembly is detachably mounted on a chassis frame of the road sweeper and can horizontally swing under the driving of the first driving part (4), and accordingly, the front arm assembly drives the sweeping assembly to realize switching of a left side sweeping area and a right side sweeping area. The additional sweeping device can be controlled independently, the sweeping assembly can be flexibly controlled to swing leftwards and rightwards according to requirements of the sweeping road condition, and the position of the sweeping assembly is adjusted, so that controllability and accuracy of the sweeping position of the sweeping assembly are improved, and the stability of the additional sweeping device during working is improved; besides, the additional sweeping device can be independently mounted on the chassis frame of the road sweeper, and is convenient to mount, dismount and maintain.

The invention discloses a multifunctional street sweeper. The street sweeper comprises a chassis, vehicle tires arranged under the chassis, a cab arranged above the chassis and a large dustbin, and is mainly characterized in that: a plurality of fan-blade type reversely rotating sweeping brush rollers are matched with one another, arranged transversely and vertically upward or obliquely forward or obliquely backward, connected with one another through driving belts or driving chains and driven by power output by an internal combustion engine or a direct current motor to completely gather thegarbage on the road, sweep snow off the road and drain the water on the road, thereby facilitating the garbage disposal of dumps.

The invention disclose an adsorption road sweeper with combined nozzle, comprising a chassis, a fan, a dust-cleaning box, a dustbin and an air channel mounted on the chassis. The chassis mounted with a left absorber, a middle absorber and a right absorber under, while the left and right absorbers are hinged at two sides of the middle absorber to connect a left absorber control cylinder and a right absorber control system in the middle absorber. The left, right and middle absorbers are respectively communicated with the dustbin via a left adsorption tube, a right adsorption tube and a middle adsorption tube. The invention has compact structure, strong adsorption and easy operation or the like.

The invention discloses a multifunctional road sweeper, which comprises a vehicle body, a control module, a dust collecting device, a sweeping device and a watering device. The dust collecting device comprises a fan, a garbage can, a first suction pipeline, a second suction pipeline, a first dust collecting cover and a second dust collecting cover; the sweeping device comprises a first sweeping unit, a second sweeping unit, a third sweeping unit and a fourth sweeping unit; the first sweeping unit, the second sweeping unit, the third sweeping unit and the fourth sweeping unit respectively comprise a hydraulic telescopic rod, a motor, a shell, a rotary shaft, a sweeping plate and a brush sweeper; the watering device comprises a water tank, a first water pipe, a second water pipe, a first electromagnetic valve, a second electromagnetic valve, a first watering unit and a second watering unit; the control module controls the dust collecting device, the sweeping device and the watering device to work. The multifunctional road sweeper provided by the invention has a high adaptive capacity to environment and a good sweeping effect, can be used in winter, has the functions of bulldozing, shoveling snow, raising snow and the like, and has a high energy utilization ratio.

The invention discloses a sweeping device of a road sweeping vehicle, comprising a sweeping mechanism, a garbage conveying system, a garbage can and a chassis. The sweeping device is characterized in that the sweeping mechanism is installed at the bottom of the chassis and comprises a main rolling sweeper, a main rolling sweeper outer cover, an auxiliary rolling sweeper and an auxiliary rolling sweeper outer cover, wherein the auxiliary rolling sweeper outer cover provided with the auxiliary rolling sweeper is adjacent to the main rolling sweeper outer cover, and communicated auxiliary rolling sweeper conveying ports are arranged at the adjacent positions of the main rolling sweeper outer cover and the auxiliary rolling sweeper outer cover which are both provided with appropriate openings as garbage inlets opposite to the ground; the upper part of the main rolling sweeper outer cover is provided with a main rolling sweeper garbage outlet connected to the garbage conveying system; the garbage conveying system comprises a chain, conveying belts with garbage buckets, a conveying belt motor, a driving chain wheel, a transmission chain wheel and a regulating chain wheel; and the conveying belts are arranged around the left side and the right side as well as the upper surface and the lower surface of the garbage can, and the conveying belt motor drives the conveying belts to run. Therefore, the sweeping device can be used for sweeping in rugged environments and pouring the swept garbage into the garbage can through the conveying belts.

The invention relates to a road sweeper as well as a cleaning operational method. The road sweeper comprises a water tank, a garbage box and a filter screen arranged on a vehicle frame, a water pump made of copper, aluminum or stainless steel material and communicated with the water tank is also disposed on the vehicle frame, a butterfly shape brush and a suction cup are arranged at both sides of the vehicle frame respectively, a suction roll communicated with the garbage box is arranged on the suction cup, a fan communicated with the garbage box is mounted on the vehicle frame, a semi-closed dust-collecting curtain is arranged under the vehicle frame for covering the butterfly shape brush, and the suction cup is communicated with the semi-closed dust-collecting curtain, the fan sucks dust and garbage swept by the butterfly shape brush by dry method in the semi-closed dust-collecting curtain to form a dusty airflow to enter the garbage box through the suction cup and the suction roll, and the water pump pumps snow-melting agent aqueous solution in the water tank and sprinkles the solution to the dusty airflow through a nozzle arranged in the suction cup and / or the suction roll, the fan pumps the clean airflow undergoing gravity settling and filtration by the filter screen in the garbage box and discharges the airflow through an exhaustion channel, and the road sweeper can be used for sweeping operations by dry method or wet method, and has advantages of good wet-type dust control effect and environmental protection of operations.

The invention discloses a vacuum suction and high-pressure water jet combined road sweeper. The vacuum suction and high-pressure water jet combined sweeper comprises a vehicle chassis, a vacuum negative-pressure device, a filtering device, a material storage bin and a suction hose, wherein the vacuum negative-pressure device, the filtering device, the material storage bin and the suction hose are arranged on the vehicle chassis; and the filtering device is respectively communicated with the vacuum negative-pressure device and the material storage bin through passages arranged on the vehicle chassis. The road sweeper further comprises a water tank, a high pressure water system and a sweeping main body, wherein the the water tank, the high pressure water system and the sweeping main body are arranged on the vehicle chassis; and the water tank is communicated with a water inlet end of the high pressure water system. The vacuum suction and high-pressure water jet combined road sweeper disclosed by the invention has the advantages of strong cleaning capacity, high speed, high efficiency and the like and is suitable for various roads.

The invention discloses a sweeping mechanism of a road sweeper, comprising a main rolling-sweep shell, a main rolling sweeper, an assistant rolling-sweep shell and an assistant rolling sweeper. The sweeping mechanism of the road sweeper is characterized in that the adjacent position of the main rolling-sweep shell and the assistant rolling-sweep shell is provided with a communicated louver-type delivery port; the main rolling-sweep shell is communicated and connected with the assistant rolling-sweep shell through the louver-type delivery port arranged on the adjacent position; the main rolling-sweep shell and the assistant rolling-sweep shell are respectively provided with a main rolling-sweep elastic dust guide plate and an assistant rolling-sweep elastic dust guide plate at the lower part of the adjacent position; openings arranged on the main rolling-sweep shell and the assistant rolling-sweep shell relative to the ground are rubbish inlets; the upper part of the main rolling-sweep shell is provided with a main rolling-sweep rubbish outlet so that assistant rolling-sweep rubbishes can be smoothly delivered into a main rolling-sweep cavity, rubbishes inside the main rolling-sweep cavity can not fall into an assistant rolling-sweep cavity in a rolling-sweep way under the action of a dust baffle, thus the invention is especially suitable for sweeping on wetter road surfaces, and a small quantity of rubbishes can not be bonded on a fur brush of the assistant rolling sweeper any more under the action of the dust baffle so as to be smoothly delivered into the main rolling-sweep cavity.

The invention discloses an efficient and clean multifunctional sweeping vehicle, which comprises a sweeping vehicle body, a telescopic rod, a camera, a turntable, a water spray pipe, a display screen, a water storage tank, stirring blades, a vacuum cleaner, a roller, a cleaning handle and a garbage bucket. The vehicle speed tester is installed in the sweeping vehicle body, the output shaft of the first motor is connected to the telescopic rod, the bottom end of the telescopic rod is fixedly connected to the center of the turntable, brushes are laid on the lower surface of the turntable, and a vacuum cleaner is installed inside the sweeping car body. There is a roller on the bottom surface of the carriage, and the cleaning handle is laid on the outer surface of the roller. The garbage bucket is connected to the bottom surface of the sweeping car body through the lifting rod. There is a water storage tank in the sweeping car body. A flow rate measuring instrument is installed on the pipe, and a display screen and a data processor are arranged on the body of the sweeping vehicle. The invention is convenient for cleaning the road surface, reduces its flying at the same time, ensures the freshness of the air quality, avoids splashing water on the body, has a simple structure, is convenient to use, and is beneficial to popularization.

The invention relates to a road sweeper and a sweeping device thereof. The sweeping device comprises a connection frame, a sweeping body and a floating regulation device. The sweeping body is mounted on the connection frame, a first end of the connection frame is connected with a chassis frame of the road sweeper, and the connection frame is capable of rotating relative to a connection point of the first end of the connection frame and the chassis frame. A position close to a second end of the connection frame is connected with the chassis frame through the floating regulation device to make the connection frame float up and down along with up-down changes of a swept road surface under the action of the floating regulation device so as to drive the sweeping body to float up and down. By the floating regulation device, the connection frame connected with the sweeping body is capable of floating up and down along with up-down changes of the swept road surface so as to drive the sweeping body to float up and down, damages caused by hard collision of the sweeping body and the swept road surface in up-down changes can be avoided, the service life of the sweeping device is prolonged, and sweeping efficiency is improved.

Street sweeper having dust control from two or more cleaning heads with one air source where one fan provides vacuum for a centrally located rotating broom which is surrounded by a vacuumized chamber and for a gutter broom which is surrounded by a vacuumized chamber. A plenum having a unique valving system and a filter shaker mechanism provides for filter cleaning and for a dirt and debris path from the plenum to a hopper bottom during filter cleaning.

The invention provides a road sweeper, and relates to the technical field of environmental sanitation. The road sweeper includes an aggregate bin, a sweeping roller and a garbage shovel, wherein the aggregate bin is a rectangular box with an open upper end, wheels for allowing the aggregate bin to move are symmetrically arranged on two opposite side walls of the aggregate bin, and a first transmission wheel is also arranged on the aggregate bin and matched with the wheels for rotating; a second transmission wheel is arranged on the end face of the sweeping roller and in transmission with the first transmission wheel by a conveying belt or a conveying chain, the end face of the sweeping roller is connected with one end of the strut, and the other end of the strut is rotationally connected with the side wall, on which the wheel is arranged, of the aggregate bin; the garbage shovel is arranged between the aggregate bin and the sweeping roller, for collecting garbage. The road sweeper provided by the invention is applicable to cleaning various road surfaces, particularly applicable to sweeping sandy roads or unsurfaced roads, does not damage the road surfaces when in sweeping, meanwhile has a certain leveling function, and is good in sweeping effect and high in cleaning efficiency.

The invention, which belongs to the technical field of the analysis measurement and control, discloses a vehicle-mounted monitoring system of an all-electric road sweeper that is mainly used for carrying out real-time monitoring and controlling on the working process of a small all-electric road sweeper. The system comprises an information acquisition and conditioning module, a touch screen display module, a three-color LED alarm module, a power module, a visual detection module, a controller module, and an execution mechanism module, wherein the information acquisition and conditioning module is formed by a plurality of sensors and conditioning circuits and the like. The system is used for measurement, analyses and control of working units during the working process of the small all-electric road sweeper; and real-time measurement and display of working parameters, real-time control of the working units, and early warning an determination of the working faults can be realized. With the system, the working efficiency of the sweeper can be improved; fault rates of the working units can be reduced; and the automatic level of the sweeper can be improved. Therefore, the working strength of the cleaner can be reduced.

The invention relates to a road sweeper. The road sweeper comprises a vehicle body, wherein a disc brush sweeper and a material centralizer are correspondingly arranged on the two sides on the front part of the vehicle body; a material collecting and lifting device is hung between front wheels and rear wheels; the material collecting and lifting device inputs collected materials into a material collecting box through a material guide groove; the material collecting and lifting device is powered by a power supply in the vehicle body; the tail part of the vehicle body is provided with a dust adsorbing and removing device; the material collecting and lifting device comprises a horizontal bracket, a vertical bracket, a front rolling sweep group and a rear rolling sweep group; the vertical bracket is provided with a transport device; the transport device comprises an annular transport tape of which the middle part is provided with a C-shaped collecting and lifting groove and a drive shaft which is driven by a hydraulic motor for driving two drive wheels and driven wheels to rotate, so that the annular transport tape moves in the circumferential direction of the vertical direction; a collecting shovel is arranged inside the upper part of the vertical bracket; and when the materials in the C-shaped collecting and lifting groove move to the top along with the annular transport tape, the materials in the C-shaped collecting and lifting groove naturally fall into the collecting shovel and slide in the material collecting box in the vehicle body along the material guide groove. The road sweeper can be widely used for sweeping under various road conditions.

The invention discloses a road-sweeper sweeping mechanism with variable-plane sweeping disks, which comprises a power system and sweeping disks driven thereby, wherein each sweeping disk comprises a broom and a turntable, and each turntable is provided with one broom; the back end of the broom handle of each broom is connected with the turntable in an axial rotation mode; the front end of the broom handle is provided with a broom brush; the broom handle is limited by a device which can limit the broom handle to swing on the turntable plane and enable the broom handle to move up and down in the axial space of the turntable to perform the guide function; and the broom handle is also limited by a support device which can limit the axial falling of the broom handle in the axial direction of the turntable. The invention is characterized in that the sweeping mechanism is provided with at least a pair of sweeping disks; each pair of the sweeping disks is composed of two sweeping disks which are adjacently arranged; one sweeping disk rotates clockwise, and the other sweeping disk rotates counterclockwise; and the mesh position or joint of the two sweeping disks is provided with a waste-conveying dust-guide plate. The waste is conveyed along the waste-conveying dust-guide plate into a waste bin or waste conveying mechanism, so that the sweeping mechanism can sweep different dust substances in different environments.

The invention relates to a dry-wet dual purpose road sweeper, which comprises a vehicle frame as well as an auxiliary engine, a garbage bin, a suction fan, a chuck and dust removers which are arranged on the vehicle frame, wherein the chuck is arranged at the lower part of the vehicle frame and is connected to a garbage inlet of the garbage bin through a suction tube, the suction fan is connected with an air outlet of the garbage bin through an air duct, an air vent of the suction fan is connected with the dust removers, the auxiliary engine drives the suction fan, the suction fan is a double suction fan which is respectively communicated with the wet type diagonal flow dust removers. The road sweeper remedies the disadvantages that a suction sweeping road sweeper widely used on the market fails to be normally used in winter and is easy to spray ash and fly dust, and a suction road sweeper fails to perform wet operation and has poor sweeping efficiency and high use cost. The dry-wet dual purpose road sweeper uses a technology that the dry operation and the wet operation can both be performed, the design of the double suction fan with ultra-strong suction, and a unique wet type diagonal flow dust removal technology, and is the all-weather road sweeper.

The invention relates to a double-pneumatic control lifting device for a road sweeper plate. In the invention, a gasholder is connected with a filter via an air tube; the filter is connected with a solenoid valve I, wherein one of two connectors of the solenoid valve I passes through a check valve while the other one passes through a pressure regulating valve and the check valve, and then the two connectors are converged by a tee joint to be connected with a solenoid valve II; the solenoid valve II is connected with a lifting cylinder, wherein one end of the lifting cylinder is arranged on a fixed plate of a four-bar mechanism and the other end thereof is arranged on a movable plate of the four-bar mechanism, a motor is fixedly arranged on the movable plate of the four bar mechanism, and an output shaft of the motor is connected with the sweeper plate; pressure gages are arranged on the filter and the pressure regulating valve. In the invention, the scheme of arranging exhaust components at the connectors of the solenoid valve II and the lifting cylinder overcomes the defects of the traditional hydraulic system, such as high cost of parts, complex oil-way connection and operation mechanism, and non-compact structure. The invention is suitable for mating with various road sweepers.

The invention provides a road sweeper which breaks through the structure form of a traditional road sweeper. Under the action of exhaust force of an exhaust fan, dust swept up from the ground can enter a dustbin along with air through a conveying device, the dust and air in the dustbin enter dust removal filter drums together through an exhaust opening of the dustbin; the air mixed with the dust is filtered by the dust removal filter drums, so that the dust is filtered out of the dust removal filter drums, and then the dust gathered outside the dust removal filter drums is stirred to fall in the dustbin through a stirring device; and all the dust is taken as garbage to be adsorbed, and clean air passes through the dust removal filter drums and then is exhausted to the outside through an outlet of the exhaust fan. When the road sweeper encounters with obstacles which cannot be swept away, main brushes swing upwards with the pivot position of a swing arm and the conveying device as a rotating point through the swing arm, so that the main brushes float vertically in a self-adaption manner according to road conditions, and the main brushes are prevented from being damaged. After the road sweeper encounters with large garbage, a first elastic baffle can be upwards lifted by a lifting mechanism so that the large garbage can smoothly enter main brush shells and then be swept away by the main brushes.

The invention provides a novel oil-electric hybrid power road sweeper which comprises a motor vehicle, a sweeping device and a garbage box; the motor vehicle is mainly provided with a secondary chassis with a non-power taking window gearbox, an engine and a generator arranged at the lower left part of the front end; a crankshaft pulley on the front end of the engine uses two V belts to drive a generator belt pulley; the configuration requirements of the generator are as follows: 28V, 100A DC generator, and about 2000r / min rotating speed; the sweeping device mainly comprises a double-rotating brush, a side brush, a hydraulic power unit and all oil cylinders controlled by the same and all working motors; the whole sweeping device is in electric transmission, and each motor is connected with the generator through a single circuit; and the garbage box and the sweeping device are arranged on the motor vehicle. The oil-electric hybrid power road sweeper solves an oil-electric hybrid power model which not only adopts the single engine but also adopts an electric driving system to drag a sweeping operation system.

The invention discloses a power-driven system for a large-scale oil-electricity hybrid power road sweeper and a control strategy of the power-driven system for the large-scale oil-electricity hybrid power road sweeper. The power-driven system for the large-scale oil-electricity hybrid power road sweeper comprises: power of an engine is delivered by a transmission, the power is switched between an operation system and a running system through a power switching device, one end of a battery pack is connected with a 220V charger, the other end of the battery pack is connected with an electrical machine, the coupling is carried out on the electrical machine and the power, switched to the running system through the power switching device, of the engine through a torsion coupler, and the power is output to a driving wheel. By using the power system to drive the system, the power system only needs one engine, and the power of the engine equivalent to the power of an assistant engine of an original vehicle. Under the mode of the cleaning and the transition, the engine is capable of operating at a higher load rate. The fuel economy and the discharge are clearly improved.

The invention discloses a novel road sweeper. The novel road sweeper comprises a storage battery set, a chassis, a main lifting mechanism, a garbage placing device, an integrated circuit controller, a side brushing mechanism, a driving mechanism, a turning mechanism and a dust collecting mechanism, wherein the main brush lifting mechanism is located in the middle of the chassis bottom; the main brush mechanism comprises an electric pushing rod, a fixed rotation support, a roll brush and a rotary force arm; a vaporific nozzle is arranged on the front brush handle of the road sweeper, is connected to a water tank through water pipe, and is supplied with water through a water pump; the water pump adjusts and controls the water pressure state through the integrated circuit controller, so that the dust is prevented from being raised up during sweeping; the removal of raised dust caused by roll brush mainly depends on the working condition of a dust absorbing mechanism; vibratory dust removal for a filter board is added to the original dust absorbing mechanism, and the dust absorbed by the filter board is removed, so that the whole air sucking channel is clear, and the raised dust is completely eliminated; besides, the electric pushing rod is adopted to lift a garbage box, so that garbage is automatically placed into a dustbin.

A hydraulic control system based on a single-engine road sweeper comprises a walking hydraulic control system and a sweeping hydraulic control system. The walking hydraulic control system comprises a three-position four-way valve with the control end connected with an accelerator pedal, the output end of the three-position four-way valve is connected with a bidirectional variable pump through an electromagnetic floating valve, and the bidirectional variable pump is respectively connected with an oil inlet and an oil outlet of a bidirectional constant displacement motor to form a circulating loop. The sweeping hydraulic control system comprises an oil tank and transfer cases arranged in parallel, the transfer cases are controlled by two electromagnetic reversing valves with the opposite control actions, the oil tank is connected with the transfer cases through pipelines, and hydraulic pumps are arranged on the connecting pipelines. A disc sweeping motor is controlled by an independent motor electromagnetic reversing valve, and two electromagnetic reversing valves used for flow division are arranged between the electromagnetic reversing valve and the oil tank in parallel. An overflow valve and an unloading electromagnetic reversing valve are respectively connected between the oil tank and the transfer cases. An auxiliary engine is eliminated, the habit of a drive for driving a vehicle is not changed, and a large amount of fuel is saved.

The invention discloses a novel road sweeper, which comprises a cleaning mechanism, and is characterized in that the cleaning mechanism comprises a main roll sweep outer cover, a sub-roll sweep outercover and a secondary transport roll sweep outer cover, wherein a main roll sweep, a sub-roll sweep and a secondary transport roll sweep are arranged in the three outer covers respectively; the position adjacent to the main roll sweep outer cover is provided with the sub-roll sweep outer cover; the main roll sweep outer cover is fixedly connected with the sub-roll sweep outer cover and is communicated with the sub-roll sweep outer cover through a transport opening; the upper part of the main roll sweep outer cover is provided with the secondary transport roll sweep outer cover and is communicated and connected with the secondary transport roll sweep outer cover through a garbage transport port; the top of the secondary transport roll sweep outer cover, which deviates from one side of a garbage box, is provided with a delivery outlet; the front deviating direction of the main roll sweep outer cover relative to the ground and the back deviating direction of the sub-roll sweep outer coverrelative to the ground are provided with a garbage inlet respectively; the main roll sweep and the secondary transport roll sweep adopt laddering hairbrushes similar to vanes; the main roll sweep, the sub-roll sweep and the secondary transport roll sweep are rotated in opposite directions; and the lower part of the main roll sweep outer cover is fixedly provided with a movable joint arc dust guiding plate so as to clean the rugged ground, and the cleaning effect is good.

The present invention provides a road sweeper, comprising a body, a first suction pipeline, sweeping devices, a second suction pipeline and a fan. The body is provided with a dustbin; the first end of the first suction pipeline extends towards the position below the body and the second end of the first suction pipeline extends into the dustbin; the sweeping devices are provided with dust collection air pipes; the second suction pipeline is independent of the first suction pipeline, the dust collection air pipes are communicated with the first end of the second suction pipeline, and the second end of the second suction pipeline extends into the dustbin; the fan is arranged on the body, the air inlet side of the fan is communicated with the dustbin, and thus a negative pressure zone is formed in the dustbin. By applying the road sweeper, accidents caused by icy roads due to water spraying for dust removal can be effectively avoided, and the reliability of road construction is improved on the premise of guaranteeing the dust removal effect. The road sweeper can be used in winter, thus effectively solving the problem that the equipment is idle.

The invention discloses a multi-functional road sweeper, which is characterized in that a rolling-brush support frame which can flexibly slide upwards and downwards is arranged in front of a bucket-tipping waste bin; the inside of the rolling-brush support frame is provided with a plurality of gradually-accelerated fan-blade type counter-rotating sweeping rolling-brushes which are horizontally arranged upwards; a garbage guide cover which is provided with arc upper and lower ends and tangent to all the counter-rotating sweeping rolling-brushes is fixedly arranged in front of the rolling-brush support frame; and the fan-blade type counter-rotating sweeping rolling-brushes are driven to simultaneously carry out counter-rotating operation by the powers output by an internal-combustion engine or a direct-current motor, thereby achieving the purpose of sweeping the garbage on road surfaces; and a dust collecting cover is arranged at a dust-raising part above a sweeping scrap chopper, and connected with a dust guide pipe so as to lead dust in a dust-filtrating water storage tank, thereby achieving the purpose of dust purification. According to the invention, through setting up a dust-filtrating water storage tank at a proper position at the top of a cab, and leading dust in the places under or above the water surface of the dust-filtrating water storage tank by the dust guide pipe, and under the actions of a powerful suction fan, water and dust-filtrating rolling brushes, the purposes of purifying the dust in bucket-tipping waste bins and producing the negative pressure are achieved.