Electric cleaning tricycle

Abstract

The utility model discloses an electric three-wheeled cleaning vehicle, which takes an electric tricycle as a carrier, is matched with a mechanical part, operates and controls the mechanical part through an electric appliance circuit consisting of a left turning handle and a power supply reversing switch, sucks garbage on the ground and stores and transfers the garbage; the mechanical part comprises a suction cup rotating arm assembly, a rotating transmission mechanism, a lifting mechanism, a garbage channel pipe assembly, a dust storage box assembly and a negative pressure system assembly. A right turning handle of the vehicle controls running of the vehicle, a left turning handle of the vehicle controls a rotation transmission mechanism and a suction cup rotation arm assembly to rotate in a scanning mode, a centrifugal fan is started to enable a dust storage box assembly, a garbage channel pipe and a suction cup rotation arm to form negative pressure, and a negative pressure suction cup sucks away ground garbage near the ground and stores the garbage into a dust storage box. And dust-containing air is discharged after being filtered by the coarse filter screen, the cylindrical filter element and the fine filter at the air outlet of the centrifugal fan. The storage battery serves as energy, turning is flexible, operation is convenient and fast, functions are complete, and the vehicle is applied to ground cleaning of urban centers, tourist attractions and residential districts.

Description

Technical Field

[0001] This utility model relates to environmental protection equipment, specifically to an electric tricycle cleaning vehicle. Background Technology

[0002] Currently, the commonly known equipment for cleaning roads and floors consists of large and medium-sized rotary broom-type fuel-powered sweepers. These typically have four to five fixed-position rotary brooms for sweeping, and a dustpan-type negative pressure suction port for vacuuming. Such equipment is classified as a special motor vehicle, requiring a special motor vehicle driver's license to operate, and is also large, noisy, and expensive. Additionally, there are commonly known small battery-powered sweepers, with four to five motors driving rotary brooms. These consume a lot of electricity, and the battery life is short, making them only suitable for sweeping and cleaning small areas such as courtyards and lobbies in government offices. Given these shortcomings of sweepers, the traditional method of manually sweeping with brooms, followed by the removal of garbage and leaves by handcarts, still persists in busy urban areas, tourist attractions, and residential communities. This manual sweeping method is inefficient, labor-intensive, requires a large workforce, and reflects a low level of civility, hindering the presentation of a modern city's sophistication. Summary of the Invention

[0003] The purpose of this utility model is to design an electric tricycle cleaning vehicle that uses a storage battery as its power source, consumes little energy, is small in size, is flexible in turning, is easy to operate, and has complete cleaning functions, and can be used for ground cleaning in urban centers, tourist attractions and residential areas.

[0004] The technical solution of this utility model is: an electric tricycle cleaning vehicle, which uses an electric tricycle as a carrier and is equipped with mechanical components. The mechanical parts are operated and controlled by an electrical circuit consisting of a left-hand turn handle and a power reversing switch. The vehicle sucks up and stores and transports ground garbage. Its features are: the mechanical components include a suction cup rotating arm assembly, a rotating transmission mechanism, a lifting mechanism, a garbage channel pipe assembly, a dust collection box assembly, and a negative pressure system assembly. The suction cup rotating arm assembly, which is front-low and rear-high, and reciprocates for scanning, lifting, and near-ground suction, is suspended behind the front wheels and under the chassis of the vehicle. The rotating transmission mechanism, which drives the suction cup rotating arm assembly to perform reciprocating scanning, is installed behind the driver's seat and on the longitudinal beam of the chassis. The lifting mechanism is installed on the upper part of the rotating transmission mechanism. The dust collection box assembly is installed on the two rear wheels of the vehicle. The negative pressure system assembly is installed in the upper part of the dust collection box assembly. The garbage channel pipe assembly is installed behind the driver's seat to form a garbage transfer channel from the suction cup rotating arm assembly and the rotating transmission mechanism to the dust collection box assembly.

[0005] The suction cup rotary arm assembly consists of a suction cup and a rotary arm. The rotary arm is a welded structure. The suction cup is formed by connecting a ball, a nylon ring, a sleeve, a push rod, a compression spring, a switch base, a contact switch, a small cover plate, and screws. The suction cup is installed under the rotary arm. The rotary arm is connected to the rotary transmission mechanism through a flange and bolts.

[0006] Furthermore, a ground-contact buzzer assembly is installed at the corresponding position of the suction cup.

[0007] The rotary transmission mechanism is assembled from a guide sleeve, a base, an external spline sleeve, a combined flange assembly, an internal spline large sprocket, a motor, a gearbox, a small sprocket, a nylon guide sleeve, a limit disc contact pin assembly, a nylon stop, a nylon ring, an external spline sleeve lower flange, a long nylon ring, a short nylon ring, a roller chain, and a support plate. The combined flange assembly consists of a combined flange, a nut, a locating pin, and balls. The limit disc contact pin assembly consists of an internal spline limit disc, a contact pin, and a... The device consists of a limit switch and screws, which automatically reverses the limit travel. The motor, small sprocket, internal splined large sprocket, external splined sleeve, and internal splined limit plate are all splined for transmission. The combined flange assembly of the transmission mechanism is a pin-positioned assembly structure with ball grooves on the upper end face to counteract the torque generated during the lifting and rotating process. The internal splined limit plate of the transmission mechanism rotates synchronously with the splined sleeve and is fixed to the reversing limit switch on the base by a contact pin, forming a limit reversing device.

[0008] The lifting mechanism consists of a lifting control lever assembly mounted on a lower pulley. This lifting control lever assembly is composed of bolts, shafts, bearings, bearing seats, control levers, pins, small shafts, torsion springs, clips, handles, fan-shaped grooved wheels, upright square steel pipes, and fan-shaped perforated plates. A spring balancing mechanism, composed of spring pull rod screws, spring seats, bolts, tension springs, lifting rods, wire ropes, hollow bolts, left pulleys, middle pulleys, A-frame brackets, and right pulleys, is used to balance the weight of the suction cup rotating arm. The pulley shafts of the left, middle, and right pulleys of the lifting mechanism are supported by the steel pipe behind the left seat of the vehicle, with the center lines of the left and middle pulleys higher than the center line of the right pulley. The lifting control lever assembly is fixed to the lower steel pipe upright on the right side of the driver's seat via bearing seats. Operating the control lever pushes and pulls to rotate the fan-shaped grooved wheel, pulling the wire rope to raise and lower the lifting mechanism. The lifting mechanism is stepped, with the pin of the control lever and the pin perforated plate fixed to the right side of the driver's seat providing stepped lifting.

[0009] The garbage channel pipe assembly is composed of a straight pipe, an upper side flange, bolts, an inclined pipe, a square hole flange, a sealing gasket, and a round hole flange. The lower end of the garbage channel pipe assembly is connected to the guide sleeve of the transmission mechanism by a flange, and the upper side of the garbage channel pipe assembly is fastened to the garbage inlet of the dust collection box assembly by a flange, forming a complete channel for garbage to be sucked into the dust collection box by the suction cup.

[0010] The dust collection box assembly is located above the two rear wheels of the vehicle and includes a garbage outlet door, an internally threaded throttle, a sloping bottom plate, a partition column, a sealing gasket, a vertical partition, a box panel, a frame tube, a top cover, and a top cover sealing gasket.

[0011] Furthermore, the dust collection box has a garbage inlet at the top front, a power button and a buzzer at the top front, a top cover, a garbage outlet at the bottom rear, and an open compartment at the rear to store larger human-discarded items that cannot be sucked up by the suction cup.

[0012] The negative pressure system assembly is built into the dust collection box assembly and mounted on the vertical partition of the dust collection box. It creates negative pressure for the suction cups and pipes to suck up ground garbage and filter dusty air. It is assembled from a motor, an air outlet fine filter, a centrifugal fan, a cylindrical filter element, a filter element support, an impeller support, bearings, keys, an impeller shaft, an impeller pressure plate, an inertial impeller, a coarse filter, bolts, and a cylindrical assembly. The inertial impeller is coaxially mounted on the vertical partition and frame pipe from back to front, with the inertial impeller facing the garbage inlet of the dust collection box. The fine filter is installed at the centrifugal fan outlet.

[0013] Advantages of this utility model compared with the prior art:

[0014] 1. The vehicle chassis is equipped with a negative pressure rotary suction cup that rotates 180 degrees left and right, is manually raised and lowered, and is close to the ground for vacuuming. During operation, the negative pressure suction cup is electrically controlled to rotate in a semi-circular scanning mode. While driving, it is close to the ground to suck up cigarette butts, fallen leaves, and small and light human-made waste and put them into the dust collection box.

[0015] 2. Compared with manual sweeping, it significantly improves work efficiency and reduces the labor intensity of cleaning staff.

[0016] 3. Compared with the common rotary sweeper, the electric tricycle cleaning vehicle consumes less energy, is more efficient, smaller in size, more flexible in turning, has a larger working range, is easy to operate, does not require a driver's license, is inexpensive and easy to popularize, requires less investment and is easy to maintain. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the electric tricycle cleaning vehicle assembly;

[0018] Figure 2 yes Figure 1 N-direction view of the schematic diagram of the electric tricycle cleaning vehicle assembly;

[0019] Figure 3 yes Figure 1 Schematic diagram of the suction cup rotary arm assembly;

[0020] Figure 4 yes Figure 1 A schematic diagram of the rotary transmission mechanism;

[0021] Figure 5 yes Figure 4 Enlarged view of the rotary transmission mechanism W section in the middle;

[0022] Figure 6 yes Figure 4 Schematic diagram of the combined flange assembly in the diagram;

[0023] Figure 7 yes Figure 6 A-direction view of the combined flange assembly in the middle;

[0024] Figure 8 yes Figure 4 BB section view of the inner spline limit plate in the middle;

[0025] Figure 9 yes Figure 1 A schematic diagram of the lifting mechanism;

[0026] Figure 10 yes Figure 9 Enlarged view of section C of the lifting control lever assembly;

[0027] Figure 11 yes Figure 10 A D-direction view of the lifting joystick assembly in the middle;

[0028] Figure 12 yes Figure 1 Schematic diagram of garbage chute pipe assembly;

[0029] Figure 13 yes Figure 12 View of the garbage chute assembly from direction E;

[0030] Figure 14 yes Figure 1 Schematic diagram of the dust collection box assembly;

[0031] Figure 15 yes Figure 14 View of the central dust collection box assembly from direction F;

[0032] Figure 16 yes Figure 1 Schematic diagram of the negative pressure system assembly;

[0033] Figure 17 yes Figure 16 GG cross-sectional view of the negative pressure system assembly in the middle;

[0034] Figure 18 yes Figure 1 A schematic diagram of the operation of an electric tricycle cleaning vehicle.

[0035] In the diagram: 1. Vehicle body assembly; 3. Suction cup rotating arm assembly; 4. Rotary transmission mechanism; 5. Lifting mechanism; 6. Waste channel pipe assembly; 7. Dust collection box assembly; 8. Negative pressure system assembly; 9. Reverse / forward switch; 10. Left turn handle; 11. Power button; 2-01. Buzzer; 2-01. Ball; 2-02. Nylon ring; 2-03. Sleeve; 2-04. Push rod; 2-05. Compression spring; 2-06. Switch base; 2-07. Contact switch; 2-08. Small cover plate; 2-09. Screw; 2-10. Suction cup; 2-11. Rotating arm; 2-12. Connecting flange. 2-13 Bolts, 2-14 Bolts, 3-01 Guide Sleeve, 3-02 Machine Base, 3-03 External Spline Sleeve, 3-04 Combined Flange Assembly, 3-05 Internal Spline Large Sprocket, 3-06 Motor, 3-07 Gearbox, 3-08 Small Sprocket, 3-09 Nylon Guide Sleeve (Left, Right), 3-10 Limiting Disc Contact Pin Assembly, 3-11 Nylon Stop (Left, Right), 3-12 Nylon Ring, 3-13 External Spline Sleeve Lower Flange, 3-14 Long Nylon Ring, 3-15 Short Nylon Ring, 3-16 Roller chain, 3-17 support plate, 3-04-3 combination flange, 3-04-2 nut, 3-04-1 locating pin, 3-04-4 ball bearing, 3-10-1 internal spline limit plate, 3-10-2 contact pin, 3-10-3 reversing limit switch (left), 3-10-4 screw, 3-10-5 reversing limit switch (right), 3-11 nylon stop (x2), 4-01 pulley, 4-02 lifting control lever, 4-03 spring pull rod screw, 4-04 spring seat, 4- 05 Bolt, 4-06 Tension Spring, 4-07 Lifting Rod, 4-08 Steel Wire Rope, 4-09 Hollow Bolt, 4-10 Left 1 Pulley, 4-11 Left Pulley, 4-12 Middle Pulley, 4-13 A-frame Bracket, 4-14 Right Pulley, 4-15 Screw, 4-16 Screw, 4-02-1 Bolt, 4-02-2 Shaft, 4-02-3 Bearing, 4-02-4 Bearing Housing, 4-02-5 Control Lever, 4-02-6 Pin, 4-02-7 Small Shaft and Torsion Spring, 4-02-8 U-shaped clip, 4-02-9 handle, 4-02-10 fan-shaped grooved wheel, 4-02-11 upright square steel pipe, 4-02-12 fan-shaped perforated plate, 5-01 straight pipe, 5-02 upper side flange, 5-03 bolt, 5-04 bolt, 5-05 oblique pipe, 5-06 square hole flange, 5-07 sealing gasket, 5-08 round hole flange, 6-01 garbage outlet door, 6-02 internal threaded handle, 6-03 sloping bottom plate, 6-04 partition column, 6-05 sealing gasket, 6-06 vertical partition, 6-07 box panel, 6-08 frame tube, 6-09 top cover, 6-10 top cover sealing gasket, 6-11 hinge, 6-12 battery compartment door, 7-01 motor, 7-02 fine filter screen, 7-03 centrifugal fan, 7-04 cylindrical filter element, 7-05 filter element support. 7-06 Impeller support, 7-07 Bearing, 7-08 Key, 7-19 Impeller shaft, 7-10 Small pressure plate, 7-11 Inertial impeller, 7-12 Coarse filter screen.7-13 bolts, 7-14 U-shaped sleeves. Detailed Implementation

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings, but this should not be construed as a limitation on the technical solution. Any improvements made based on this description are within the protection scope of this utility model.

[0037] Figure 1 The electric tricycle cleaning vehicle uses an electric tricycle 1 as a carrier and is equipped with six mechanical functional components numbered 2 to 7. The rotary transmission mechanism 3 drives the suction cup rotary arm 2 to scan and rotate. The lifting control lever assembly 4-02 of the lifting mechanism 4 adjusts the distance of the suction cup rotary arm 2 from the ground. The negative pressure suction cup 2 under the chassis sucks up the garbage close to the ground. The dust suction channel pipe 5 serves as the channel for the garbage to enter the dust collection box 6. The negative pressure system 7 installed in the dust collection box 6 creates negative pressure in the channel from the suction cup 2 to the dust collection box 6, thus completing the garbage suction process on the ground.

[0038] Figure 2 yes Figure 1 The N-direction view shows that the right turn handle controls the vehicle's movement. The vehicle body must meet the assembly conditions for installing this utility model. Other mature technologies for the vehicle body are omitted from the description. The vehicle body should meet all safety conditions and traffic regulations. The electric tricycle's steering handle is equipped with a left turn handle 9 for stepless voltage adjustment, a reversing switch 8, a power button 10, and a buzzer 11. Both the left and right turn handles are hand-held rotary stepless voltage adjustments. The sliding rheostat-type left turn handle 9 is used in conjunction with the power reversing switch 8 and the reversing travel switches 3-10-3 and 3-10-5 to control the forward and reverse rotation of the rotary transmission mechanism 3. The electric tricycle cleaning vehicle is equipped with two power supply systems: battery group a and battery group b. The cleaning vehicle's driving and rotary transmission mechanism is powered by battery group a, which is located under the driver's seat. The centrifugal fan 7-03 of the negative pressure system 7 is powered by battery group b, which is located at the lower front of the dust collection box 6.

[0039] Figure 3The suction cup rotating arm assembly 2, with a lower front and higher rear, is suspended behind the front wheels and under the chassis of the vehicle. Under negative pressure, it serves as the suction inlet and channel for waste. The front end of the suction cup rotating arm assembly 2 is a suction cup 2-10, and the rear end is a rotating arm 2-11. The rear end of the rotating arm 2-11 has a flange 2-12 connected to the lower flange 3-13 of the outer spline sleeve 3-03 of the rotary transmission mechanism 3 by bolts 2-13. The suction cup rotating arm assembly 2 is driven by the rotary transmission mechanism 3 and the lifting mechanism 4. The reciprocating rotation and linear lifting of the suction cup 2-10 enable it to scan and rotate close to the ground for dust suction. The rotating arm 2-11 is the channel for the waste to enter the storage box 6. To prevent the suction cup 2-10 from touching the ground and damaging the machine parts, a ground-touching buzzer warning and power-off device is provided. This device consists of a ball 2-01, a sleeve 2-03, a top rod 2-04, a compression spring 2-05, a switch base 2-06, a contact switch 2-07, a cover plate 2-08, a screw 2-09, and a buzzer 11.

[0040] Figure 4 The rotary transmission mechanism 3 is a mechanical transmission device that drives the chuck rotary arm 2. Figure 5 yes Figure 4The enlarged view of the middle W section shows it positioned vertically behind the driver's seat of the electric tricycle cleaning vehicle, above the longitudinal beam of the chassis. It consists of a supporting iron plate 3-17, a base 3-02, a guide sleeve 3-01, an external spline sleeve 3-03, nylon sheets 3-14 and 3-15, a combined flange assembly 3-04, ball bearings 3-04-4, a lower flange of the external spline sleeve 3-13, an internal spline large sprocket 3-05, a nylon stop block 3-11, and an internal spline limit disc assembly. The machine base 3-02 is composed of component 3-10, contact pin 3-10-2, nylon washer 3-12, left limit switch 3-10-3, right limit switch 3-10-5, motor 3-06, gearbox 3-07, small sprocket 3-08, nylon sleeve 3-09, and roller chain 3-16; the machine base 3-02 is fastened to the support plate 3-17 on the upper plane of the longitudinal beam of the vehicle chassis, and the upper plane of the machine base 3-02 has a mounting hole for the guide sleeve 3-01 in the middle. The left and right sides have holes for installing nylon sleeves 3-09 to guide the lifting rod 4-07; the guide sleeve 3-01 is tightly fitted into the middle vertical hole on the upper surface of the base 3-02 and fixed with flange bolts 5-04; the middle hole of the guide sleeve 3-01 is the garbage channel, and the outer surface guides the rotation and lifting of the outer spline sleeve 3-03; the upper surface of the guide sleeve 3-01 has an upper flange 5-08 and a lower flange 5-06 of the garbage channel pipe 5, which are fixed with bolts 5-03; the inner surface of the outer spline sleeve 3-03 has two circumferential grooves, in which nylon tiles 3-14 and 3-15 are embedded for rotation and axial movement with the outer surface of the guide sleeve 3-01. Wear parts; the lower end of the outer spline sleeve 3-03 has a flange 3-13 that is connected to the flange 2-12 of the suction cup rotary arm assembly 2 by bolts 2-13; the outer spline sleeve 03-03, the combined flange assembly 3-04, the inner spline large sprocket 3-5, the limit plate contact pin assembly 3-10, the nylon washer 3-12, and the lower flange 3-13 of the outer spline sleeve are sequentially assembled on the outer circular surface of the guide sleeve 3-1 along the same axis; the upper plane of the inner spline large sprocket 3-5 has a nylon stop 3-11 that is fixed to the upper plane of the base plate of the machine base 3-2, and the nylon stop 3-11 restricts the inner spline large sprocket 3-5 from moving upward due to the lifting and lowering of the outer spline sleeve 3-3.

[0041] Figure 6 , Figure 7 All are combined flange assemblies 3-04. Figure 7 yes Figure 6 The A-direction view consists of a locating pin bolt 3-04-1, a nut 3-04-2, a combination flange 3-04-3, and ball bearings 3-04-4. The combination flange 3-04-3 needs to be made into two semicircles to be fastened into a complete circle by the locating bolt 3-04-1. It is assembled in the relief groove at the upper end of the external spline sleeve 3-03. The upper concave surface of the combination flange 3-04-3 has ball bearing grooves with ball bearings 3-04-4 arranged therein. The ball bearings act on the relative sliding of the external spline sleeve 3-03 during linear lifting and rotation.

[0042] Figure 8 The internal spline limiting plate assembly 3-10 consists of an internal spline limiting plate 3-10-1, a contact pin 3-10-2, a left reversing limit switch 3-10-3, a bolt 3-10-4, a right reversing limit switch 3-10-5, and two nylon blocks 3-11. A protruding contact pin 3-10-2 is mounted on the outer circular surface of the limiting plate 3-10-1. When the limiting plate 3-10-1 rotates 90 degrees to the left or 90 degrees to the right with the external spline sleeve 3-03, the contact pin 3-10-2 triggers the left reversing limit switch 3-10-3 and the right reversing limit switch 3-10-5, which are fixed to the base 3-02 at 180-degree intervals. This causes the current to change direction and the motor 3-06 to reverse, realizing the emergency stop and reverse rotation of the suction cup rotary arm assembly 2.

[0043] Figure 9 , Figure 10 , Figure 11The manual control lever assembly 4-02 of the lifting mechanism 4 is located on the upper part of the rotary transmission mechanism 3. The lifting mechanism 4 is composed of a combination flange 3-04-3, ball bearings 3-04-4, left and right lifting rods 4-07, nylon guide sleeves 3-09, a herringbone bracket 4-13, left pulley 4-10, left pulley 4-11, middle pulley 4-12, right pulley 4-14, wire rope 4-08, left and right tension springs 4-06, and tension spring seat 4-04. The upper surface of the combination flange 3-04-3 has holes on both sides at 180-degree circumferential intervals for assembling the left and right lifting rods 4-07. The lower end of the left and right lifting rods 4-07 has a step that mates with the holes of the combination flange 3-4-3 and is secured with screws 4-16. The upper end of the left and right lifting rods 4-07 passes through the vertical holes of the nylon guide sleeves 3-09 on both sides of the upper surface of the base 3-02. Then, it is connected and secured to the U-shaped grooves at both ends of the upper herringbone bracket 4-13 with bolts 4-09 to form a frame-shaped lifting assembly; the upper part of the herringbone bracket 4-13 has four pulleys fixed at different heights to the horizontal square steel pipe above the backrest of the seat, namely the left pulley 4-10, the left pulley 4-11, the middle pulley 4-12, and the right pulley 4-14. Steel wire ropes are fixed to the bolt holes 4-09 at both ends of the herringbone bracket 4-13 respectively. The cable then passes upwards through the R-groove of the upper left pulley 4-11 and the R-groove of the upper right pulley 4-14, and downwards from the outside, connecting to the upper ends of the left and right tension springs 4-06 on both sides. The lower ends of the left and right tension springs 4-06 are fastened to the left and right tension spring seats 4-04 fastened to both sides of the machine base 3-02, forming a balanced combination to overcome the weight of the suction cup rotating arm assembly 2 and the outer spline sleeve 3-03. Additionally, one end of the steel wire rope 4-08 is fixed to the middle hole of the herringbone bracket 4-13, and the other end passes upwards through the R-groove of the upper middle pulley 4-12 to the R-groove of the first left pulley 4-10, downwards to the R-groove of the left lower pulley 4-01, and then to the fan-shaped grooved wheel 4-02-10. The other end of the R groove is fixed; the left lower pulley 4-01 is vertically aligned with the first left pulley 4-10 above it, and the left lower pulley 4-01 is parallel to the right side of the sector groove wheel 4-02-10. The support of the left lower pulley 4-01 is fixed to the upper surface of the vehicle chassis with bolts; the lifting control lever 4-02-5 is operated to rotate the sector groove wheel 4-02-10, pulling the wire rope, which in turn pulls the herringbone bracket 4-13, the left and right lifting levers 4-07, and the combined flange 3-04-3 to achieve the lifting of the mechanism; the adjustment distance of the lifting mechanism is H between the lower surface of the combined flange 3-04-3 and the nylon stop 3-11, see Figure 4 This is equivalent to the lifting distance H from the lower plane of suction cup 2-10 to the ground, see... Figure 1 The aforementioned lifting control lever assembly 4-02 is located on the right side of the driver's seat, see... Figure 10 , Figure 11It consists of a control lever 04-02-5, a grip 04-02-9, a U-shaped clamp 4-02-8, a pin 4-02-7, a torsion spring, a pin 4-02-6, a bearing seat 4-02-4, a shaft 4-02-2, and a stop plate 4-02-1. The grip 4-02-9, U-shaped clamp 4-02-8, pin 4-02-7, torsion spring, and pin 4-02-6 form a small lever assembly located below the handle of the control lever 4-02-5. (See...) Figure 10 , Figure 9 The location of the double-dotted square in section C; the lower end of the control lever 4-02-5 is mounted on the outer journal of the shaft 4-02-2 in the middle of the bearing seat 4-02-4 on the lower right side of the seat pillar; the sector-shaped grooved wheel 4-02-10 is mounted on the inner journal of the shaft 4-02-2 of the bearing seat 4-02-4 under the seat, both connected to the journal by keys; the stop plate 4-02-11 is fixed to the corresponding part of the steel tube on the right side of the seat and the pin 4-02-6; during operation, the right hand exerts force on the upper end of the handle 4-02-9, and due to the leverage, the pin 4-02-6 is pulled out, see Figure 10 The diagram illustrates the removal of the right pin. Push or pull the control lever to the appropriate position and release the grip 4-02-9. The torsion spring returns to its original position, allowing the pin 4-02-6 to insert into the hole in the stop plate 4-02-11. (See diagram) Figure 11 , Figure 10 The view from direction D in the diagram.

[0044] The aforementioned dust suction channel pipe assembly 5 is a waste transfer channel between the guide sleeve 3-01 and the dust collection box assembly 6. It is located behind the driver's seat and above the rotary transmission mechanism 3. It consists of a straight pipe 5-01, an upper flange 5-02, bolts 5-03 and 5-04, an inclined pipe 5-05, a square hole flange 5-06, a sealing gasket 5-07, and a round hole flange 5-08. The upper side of the dust suction channel pipe assembly 5 is connected to the waste inlet flange 6-10 of the storage box 6 by a rectangular flange 5-02 and bolts 5-03. The lower side is connected to the round hole flange 5-08 on the upper surface of the guide sleeve 3-01 by a square hole flange 5-06.

[0045] The dust collection box assembly is located behind the driver's seat, above the chassis of the cleaning vehicle's rear two wheels. The dust collection box assembly 6 consists of a garbage outlet door 6-01, an internally threaded handle 6-02, a sloping bottom plate 6-03, partition uprights 6-04, a sealing gasket 6-05, vertical partitions 6-06, a box body skin 6-07, a frame steel pipe 6-08, a top cover 6-09, a battery compartment door 6-12, a sealing gasket 6-10, and a hinge 6-11. The dust collection box assembly 6 is fully enclosed, and a negative pressure system assembly 7-00 is installed in the upper part of the box. Figure 1The slanted guide line 7 leads to the battery compartment B at the lower front end, which provides power to the centrifugal fan 7-03. The battery compartment B is a separate atmospheric pressure compartment from the dust collection box. The lower part of the dust collection box is the garbage compartment. The garbage channel inlet is located on the front face of the dust collection box, and the garbage outlet door 6-01 is located at the lower rear of the dust collection box. The top inspection hole cover 6-07 and the garbage outlet door 6-01 are both connected to the dust collection box with screws by hinges 6-12 and tightened and sealed with an internal thread handle 6-14.

[0046] The negative pressure system assembly 7 is located in the upper part of the storage box and is composed of a DC motor 7-01, a fine filter 7-02, a centrifugal fan 7-03, a cylindrical filter element 7-04, a filter element support 7-05, an impeller support 7-06, a bearing 7-07, a key 7-08, an impeller shaft 7-09, a pressure plate 7-10, an inertial impeller 7-11, a coarse filter screen 7-12, bolts 7-13, and a U-shaped cylinder 7-14, assembled from back to front along the same axis. The centrifugal fan is bolted to the vertical partition 6-06 slightly rearward inside the dust storage box, and the DC motor 7-01 is mounted at the corresponding position behind the centrifugal fan 7-03. The upper sides of the U-shaped cylinder 7-14 are bolted to the frame steel pipe 6-08 of the dust storage box. The rear end of the U-shaped cylinder 7-14 is close to the air inlet of the centrifugal fan 7-03, and the front end of the U-shaped cylinder 7-14 faces the waste inlet of the dust storage box. The function of the U-shaped cylinder 7-14 is to guide negative pressure airflow from the dust collection bin's waste inlet to the centrifugal fan 7-03 and to isolate waste. The filter element bracket 07-05 is fastened to the front wall of the U-shaped cylinder 07-14 with bolts 7-13, serving as a support for the front end of the cylindrical filter element 7-04. The rear end of the cylindrical filter element 7-04 is fitted onto the stop ring at the air inlet of the centrifugal fan 7-03. The impeller bracket 7-06 is mounted in front of the filter element bracket 7-0 and fastened to the front wall of the U-shaped cylinder 7-10 with bolts 7-13. Between filter element support 7-05 and filter element support 6 is coarse filter screen 7-12; the impeller support 7-06 has a bearing 7-07, impeller shaft 7-09, and key 7-08 installed in the middle hole; an inertial impeller 7-11 is installed in front of impeller support 7-06; the end face of the inertial impeller 7-11 faces the dust collection box garbage inlet and rotates under the action of negative pressure air intake, knocking off leaves, garbage and other debris sucked in from the dust collection box air inlet; the dusty air enters the U-shaped cylinder 7-14 after coarse filtration by coarse filter screen 7-12, is filtered by cylindrical filter element 7-04, enters the centrifugal fan 7-03, is finely filtered by fine filter screen 7-02 and then discharged.

[0047] Figure 1Using an electric tricycle 1 as a carrier, the suction cup rotating arm assembly 2 is suspended under the chassis of the vehicle. The rotating transmission mechanism 3 is located behind the driver's seat and on the longitudinal beam of the chassis. The lifting mechanism 4 is mounted on the rotating transmission mechanism and integrated with it. The lifting mechanism is operated on the right side of the driver's seat, and its function is to drive the rotation and lifting of the suction cup rotating arm assembly 2. The dust suction channel pipe assembly 5 serves as a garbage channel connecting the guide sleeve 3-01 of the rotating transmission mechanism 3 to the inlet of the dust collection box assembly 6. The dust collection box assembly 6 is located above the two rear wheels of the tricycle and has a built-in negative pressure system 7. The negative pressure system 7 is located slightly above and slightly behind the dust collection box. The function of the negative pressure system 7 is to filter the garbage air and create negative pressure from the suction cup rotating arm to the dust collection box; the flange 2-12 of the suction cup rotating arm assembly 2 is bolted to the lower flange 3-13 of the outer spline sleeve 3-03 of the rotary transmission mechanism 3; the guide sleeve 3-01 of the rotary transmission mechanism 3 is bolted to the flanges 5-08 and 5-06 of the dust collection channel pipe assembly 5; and the upper side of the dust collection channel pipe assembly 5 is fastened to the garbage inlet of the dust collection box assembly 6 by flange 5-02 and bolt 5-03.

[0048] Figure 2 Left turn handle 9 and power reversing switch 8 and Figure 8 The left reversing limit switch 3-10-4 and the right reversing limit switch 3-10-5 in the middle form an electrical circuit to control the rotary transmission mechanism; Figure 1 The battery compartment a supplies power to the driving and rotation transmission mechanism 3 of the electric tricycle cleaning vehicle. Figure 1 Battery compartment b supplies power to the centrifugal fan 7-01 of the electric tricycle cleaning vehicle; Figure 1 The suction cup of the suction cup rotary arm assembly 2 is adjusted to lift off the ground by a distance H. Figure 1 The top view shows that the rotation angle of the suction cup rotating arm assembly 2 is 180 degrees, and its amplitude arm span is L; Figure 1 The other parts are the carrier of the cleaning vehicle, which is a conventional and mature technology, so I will not go into details about it.

[0049] Figure 3The suction cup rotating arm assembly 2 of this utility model for an electric tricycle cleaning vehicle consists of a suction cup 2-10 and a rotating arm 2-11 welded together via a flange 2-12. The right side of the rotating arm 2-11 has a flange 2-12 connected to the lower flange of the outer spline sleeve 3-03 by bolts 2-13. The suction cup 2-10 is equipped with a ground-contact buzzer power-off protection device. The assembly comprises a ball 2-01, an outer sleeve 2-03, a push rod 2-04, a compression spring 2-05, a switch base 2-06, and a contact switch. The device consists of a switch 2-07, a cover plate 2-08, a screw 2-09, and a buzzer 11. The outer sleeve 2-03 is fixed to the hole at the corresponding position of the suction cup 2-10. During operation, when the ball 2-01 touches the ground, it pushes up the push rod 2-04 and compresses the spring 2-05. The push rod 2-04 then pushes up the contact switch 2-07, the circuit is connected, and the buzzer 11 sounds. The relay de-energizes the motor 3-06, and the rotary transmission mechanism 3 and the suction cup rotary arm assembly 2 stop rotating. When the lifting control lever 4-02-5 is operated to raise the suction cup rotary arm, the ball 2-01 leaves the ground, the compression spring 2-05 rebounds, the push rod 2-04 leaves the contact point of the contact switch 2-07, the buzzer circuit is de-energized, and the buzzer stops. The relay activates the motor of the rotary transmission mechanism 3, and the circuit is connected and returns to normal.

[0050] Figure 4 This is an assembly drawing of the rotary transmission mechanism 3 of the electric tricycle cleaning vehicle of this utility model. The base 3-02 is fixed to the upper plane of the support plate 3-17 on the longitudinal beam of the chassis behind the driver's seat of the cleaning vehicle. The guide sleeve 3-01 is installed in the middle hole of the upper plane of the base 3-02 and fastened with bolt 5-04. The holes of the nylon sleeves 3-09 on both sides of the upper plane of the base 3-02 are the guide holes of the left and right lifting rods 4-07. The combined flange assembly 3-04 is installed in the relief groove at the upper end of the outer spline sleeve 3-03. The outer spline sleeve 3-03 is assembled on the outer circular surface of the guide sleeve 3-01. The inner circular surface of the outer spline sleeve 3-03 has two grooves, in which nylon tiles 3-15 and 3-14 are embedded as a friction pair with the outer circular surface of the guide sleeve 3-01. The motor 3-06 is installed on the front vertical surface of the base 3-02, and the motor mounting bolts are... The small sprocket 3-08 is used to adjust the distance between the motor 3-06 and the large internal spline sprocket 3-05 to tension the transmission chain; the small sprocket 3-08 is mounted on the output shaft journal of the gearbox 3-07 and fixed with a key. The small sprocket 3-08 and the large internal spline sprocket 3-05 are on the same horizontal plane and are driven by a roller chain 3-16. The large internal spline sprocket 3-05 and the limit plate contact pin assembly 3-10 are sequentially assembled on the outer circular surface of the outer spline sleeve 3-03 with spline engagement; the lower end face of the limit plate 3-10-1 is a nylon ring 3-12 mounted on the flat recess of the base plate of the machine base 3-02 as a wear part; the upper end face of the large internal spline sprocket 3-05 has opposing nylon stops 3-11, which are bolted to the flat surface of the base plate of the machine base 3-02 to prevent the large internal spline sprocket 3-05 from moving upward; during operation, start the power reversing switch 8 and turn the left handle 9 (see... Figure 1(N-direction view), start the motor 3-06 to rotate, the small sprocket 3-08 on the gearbox shaft 3-07 drives the inner spline large sprocket 3-05 and the outer spline sleeve to rotate 3-03 through the chain 3-16, and drives the suction cup rotary arm assembly 2 to rotate synchronously through the connecting flanges 3-13 and 2-12.

[0051] Figure 5 yes Figure 4 The enlarged view of part W in the assembly drawing of the rotary transmission mechanism 3 shows the structure of a planar thrust bearing formed by the combined flange 3-04-3, the ball bearing 3-04-4, and the upper side of the tool relief groove of the external spline sleeve 3-03.

[0052] Figure 6 , Figure 7 The combined flange assembly 3-04 in the rotary transmission mechanism 3 of the electric tricycle cleaning vehicle of this utility model is assembled in the upper relief groove of the external spline sleeve 3-03. Due to the assembly process requirements, the combined flange 3-04-3 is made into a combination structure of two semicircles positioned by positioning pins and fastened by bolts. The combined flange 3-04-3 has mounting holes for lifting rods 4-07 on both sides. The upper concave step has ball grooves for arranging balls, which together with the upper side plane of the relief groove of the external spline sleeve 3-03 form a planar rolling friction pair to replace the planar thrust rolling bearing. The function of the combined flange 3-04-3 is to overcome the rotational torque of the external spline sleeve 3-03 when it is raised and lowered by the rolling of the balls.

[0053] Figure 8 Figure 3-10 shows the inner spline limit plate assembly 3-10 in the rotary transmission mechanism 3 of the electric tricycle cleaning vehicle of this utility model. The inner spline of the limit plate 3-10-1 rotates synchronously with the outer spline of the outer spline sleeve 3-03. There is a protruding contact pin 3-10-2 on the outer circular surface of the limit plate 3-10-1. There are two fixed left limit travel switches 3-10-3 and right limit travel switches 3-10-5, which are 180 degrees apart from each other, on the bottom plate of the base 3-02. When the limit plate 3-10-1 rotates 180 degrees, the protruding contact pin 3-10-2 of the limit plate touches the other right limit travel switch 3-10-5. Through the action of the electrical circuit, the current is reversed, the motor 3-06 reverses, and the rotary transmission mechanism 3 and the suction cup rotary arm assembly 2 reverse synchronously, completing the 180-degree reciprocating rotary function.

[0054] Figure 9 This is an assembly drawing of the lifting mechanism 4 of the electric tricycle cleaning vehicle of this utility model, including a lifting control lever 4-02. The lifting mechanism 4 is located on the upper part of the rotary transmission mechanism 3. Figure 6As shown, the combined flange 3-04-3 is assembled in the relief groove of the external spline sleeve 3-03. The lower ends of the left and right lifting rods 4-07 are fastened to the holes on both sides of the combined flange 3-04-3 with screws 4-16. The upper ends of the left and right lifting rods 4-07 pass through the guide holes of the nylon sleeves 3-09 on both sides of the machine base 3-02, and are fastened to the holes of the U-shaped grooves at both ends of the herringbone bracket 4-13 with hollow bolts 4-09, forming a frame-shaped lifting assembly guided by the holes 3-09 of the nylon sleeves. A steel wire rope is fastened to each of the bolt holes 4-09 at both ends of the herringbone bracket 4-13 and passes upward through the R of the left pulley 04-11 and the right pulley 4-14 respectively. The grooves are fastened downwards to the upper ends of the left and right tension springs 4-06, while the lower ends of the left and right tension springs 4-06 are fastened to the tension spring seats 4-04 bolted to both sides of the machine base 3-02. The function of the left and right tension springs 4-06 is to balance the weight of the suction cup rotating arm and the outer spline sleeve 3-03, reducing the operator's effort. The lifting and lowering of the mechanism is achieved by fixing a steel wire rope 4-08 through the hole in the middle of the herringbone bracket 4-13. The other end of the steel wire rope 4-08 passes through the R-groove of the middle pulley 4-12, the R-groove of the first left pulley 4-10, down to the R-groove of the lower pulley 4-01, and then to the R-groove of the fan-shaped grooved wheel 4-02-10 before being fixed. See Figure 10 , Figure 11 , Figure 9 The first left pulley 4-10 is vertically aligned with the lower pulley 4-01. The lower pulley 4-01 is parallel to the fan-shaped grooved wheel 4-02-10. The center of the first left pulley 4-10 and the middle pulley 4-12 is higher than the center of the left pulley 4-11. The wire rope 4-08 will not interfere with each other.

[0055] Figure 10 This is a utility model electric tricycle cleaning vehicle. Figure 9 Enlarged view of the lifting control lever assembly 4-02 and part C of the lifting mechanism 4. Figure 11 yes Figure 10View from direction D; the lifting control lever assembly 4-02 is located on the right side of the driver's seat and consists of bolt 4-02-1, shaft 4-02-2, bearing 4-02-3, bearing seat 4-02-4, control lever 4-02-5, pin 4-02-6, small shaft 4-02-7, torsion spring, U-shaped clip 4-02-8, grip 4-02-9, gear shift hole plate 4-02-12, and sector groove wheel 4-02-10. Assemble it as a lever structure as shown in the diagram, positioned slightly below the hand grip of the control lever 4-02-5; the bearing seat 4-02-4 is bolted to the steel pipe column 4-02 below the right side of the seat. On bearing housing 4-02-4, the cylindrical part is assembled into the hole of steel pipe column 4-02-11. Bearing 4-02-3 and shaft 4-02-2 are installed in the bearing hole of bearing housing 4-02-4. Operating lever 4-02-5 is mounted on the journal of shaft 4-02-2 on the outside of bearing housing 4-02-4. Sector-shaped grooved wheel 4-02-10 is mounted on the journal of shaft 4-02-2 on the inside of steel pipe column 4-02-11 (under the seat), assembled with a key and nut as shown in the diagram. The operating method is as follows: hold operating lever 4-02-5 and grip handle 4-02-9; due to the lever action, pull out the stop pin 4-02-6. See... Figure 10 Right, diagram of pin removal. Visually assess the required height of suction cup 2-10 from the ground, push or pull the control lever 4-02-5 to the appropriate position and release the grip 4-02-9. Under the torque of torsion spring 4-02-7, the gear shift pin 4-02-6 is inserted into the hole of gear shift eyelet plate 4-02-12 for positioning.

[0056] Figure 12 This is a schematic diagram of the dust suction channel pipe assembly 5 of the electric tricycle cleaning vehicle of this utility model. Figure 13 yes Figure 12 The dust collection channel pipe assembly 5 is a welded structure consisting of a straight pipe 5-01, an inclined pipe 5-05, and upper and lower flanges 5-02 and 5-06. The lower end has a square hole flange 5-06, a round hole flange 5-08, and a sealing gasket stacked on top of each other. The square hole flange 5-06, the round hole flange 5-08, and the sealing gasket 5-07 are fastened to the upper end face of the guide sleeve 2-01 with bolts 5-04. The rectangular flange 5-02 and the sealing gasket on the upper side of the dust collection channel pipe assembly 5 are fastened to the inlet of the dust collection box with bolts 5-03. Ground garbage is sucked in by the negative pressure of the suction cup 2-10, passes through the rotating arm 2-11, and enters the dust collection box through the guide sleeve 3-01.

[0057] Figure 14This is a schematic diagram of the dust collection box assembly 6 of the electric tricycle cleaning vehicle of this utility model. The dust collection box assembly is located behind the driver's seat, above the two rear wheels of the electric tricycle. The dust collection box assembly operates under a negative pressure environment. The dust collection box assembly 6 consists of a garbage outlet door 6-01, an internally threaded handle 6-02, a sloping bottom plate 6-03, partition columns 6-04, a sealing gasket 6-05, a vertical partition 6-06, a box panel 6-07, a frame tube 6-08, a top cover 6-09, a top cover sealing gasket 6-10, and a hinge 6-11. The garbage inlet of the dust collection box assembly 6 is at the front, and the garbage outlet door 6-01 is located slightly below the rear of the dust collection box assembly. The battery compartment b is located at the lower front of the dust collection box assembly. Battery compartment b is an independent atmospheric pressure compartment. The upper part of the dust collection box assembly is the built-in negative pressure system assembly 7. The dust collection box is pre-installed with a vertical partition 6-06 and a frame tube 6-08 for installing the negative pressure system assembly 7. The top inspection hole cover 04-7 and the garbage outlet door 06-01 are both fastened to the dust collection box screws with hinges 06-12 and then tightened and sealed with an internal thread handle 06-14. All doors and covers are sealed with gaskets. An open garbage compartment is set at the rear upper part of the dust collection box assembly to hold larger discarded items that cannot be sucked up by the suction cup.

[0058] Figure 16 This is a schematic diagram of the negative pressure system assembly 7 of the electric tricycle cleaning vehicle of this utility model. Figure 17 yes Figure 16The negative pressure system assembly diagram shows a cross-sectional view (GG). Installed in the upper middle part of the dust collection box, it consists of a motor 7-01, a fine filter 7-02, a centrifugal fan 7-03, a cylindrical filter element 7-04, a filter element support 7-05, an impeller support 7-06, a bearing 7-07, a key 7-08, an impeller shaft 7-09, a small pressure plate 7-10, an inertial impeller 7-11, a coarse filter screen 7-12, bolts 7-13, and a U-shaped cylinder 7-14. The centrifugal fan 7-03 is mounted on the front side of the partition 6-06. The motor 7-01 is installed behind the partition 6-06 and at the corresponding position of the centrifugal fan 7-03; the air filter 7-02 is installed at the air outlet of the centrifugal fan 7-03 and on the rear side of the partition 6-06; the U-shaped cylinder 7-14 is an airflow guide component for negative pressure airflow from the waste inlet of the storage box assembly to the air inlet of the centrifugal fan 7-03, and the upper end of the U-shaped cylinder 7-14 is bolted to the frame steel of the dust collection box assembly 6. On pipe 6-08, the front end faces the inertial impeller 7-11 and the waste inlet of the dust collection box assembly, and the rear end is close to the air inlet end face of the centrifugal fan 7-03; the filter element bracket 7-05 is installed at the front end of the U-shaped cylinder 7-14 and is fastened to the wall of the U-shaped cylinder with bolts to support the front end of the cylindrical filter element 7-04, and the rear end of the cylindrical filter element 7-04 is fitted on the stop ring of the air inlet of the centrifugal fan 7-03; the impeller bracket 7-06 is installed in front of the filter element bracket 7-05 and is fastened to the wall of the U-shaped cylinder 7-14 with bolts 7-13, and the coarse filter screen 6-12 is between the impeller bracket 7-06 and the filter element bracket 7-05. The bearing hole in the middle of the impeller bracket 7-06 is equipped with the bearing 7-07, the key 7-08, and the impeller shaft 7-09. The inertial impeller 7-11 is installed on the shaft head of the impeller shaft 7-09, and the inertial impeller 7-11 faces the waste inlet of the dust collection box assembly; During operation, the inertial impeller 7-11 rotates and is knocked down by the wind pressure of the garbage inlet of the storage box assembly. The leaves, paper scraps and other debris sucked in from the garbage inlet are sent to the lower part of the storage box. The garbage dust gas is filtered through the coarse filter 7-12, the U-shaped cylinder 7-14 and the cylindrical filter element 7-04 for further filtration. After passing through the centrifugal fan 7-03, it is then filtered through the fine filter 7-01 before being discharged. The method for cleaning the negative pressure system 7 is to open the top cover 6-09 of the dust collection box assembly 6 and purge it with compressed air.

[0059] Figure 18 This is a schematic diagram of the vacuuming operation of the electric tricycle cleaning vehicle of this utility model. The operation process is as follows: (1) Press the power button 10 to turn on the power, start the DC motor 7-01, and the centrifugal fan 7-03 rotates to suck air. The dust collection box, garbage channel pipe, guide sleeve, and suction cup rotating arm pipe space are all in a negative pressure state; (2) Operation Figure 1 Turn the handle to the right, put the electric tricycle cleaning vehicle in driving mode and control the working speed; (3) Operate the turn Figure 1The left turn handle 9 in the middle, together with the reversing switch 8, controls the rotation speed of the suction cup rotating arm scanning; (4) Operate the lifting handle 4-02-5, visually and control the distance of suction cup 02-10 from the ground 2-4CM, and the garbage such as leaves and cigarette butts on the ground are sucked in by negative pressure. The garbage enters the dust collection box inlet through the middle hole of suction cup 2-10, rotating arm 2-11, and guide sleeve 3-01, and is knocked down into the lower part of the dust collection box by the rotating inertial impeller 7-08. The dust and air are coarsely filtered by coarse filter screen 7-12 and then filtered by U-shaped cylinder 7-14 and cylindrical filter element 7-04. After fine filtration by fine filter screen 7-02, it is discharged; The cleaning method of the negative pressure system is to open the top cover 6-09 of the dust collection box assembly 6 and clean it with compressed air.

Claims

1. An electric tricycle cleaning vehicle, using an electric tricycle as its carrier and equipped with mechanical components, operates and controls the mechanical parts via an electrical circuit consisting of a left-hand turn handle and a power reversing switch, to vacuum up, store, and transport ground garbage; its characteristics are: The mechanical components include a suction disc rotary arm assembly, a rotary transmission mechanism, a lifting mechanism, a garbage channel pipe assembly, a dust storage box assembly, and a negative pressure system assembly. The suction disc rotary arm assembly is installed in front of the front wheels of the vehicle, under the chassis of the vehicle, and has a high front bottom and rear height, and performs reciprocating rotary scanning, lifting, and near-ground dust suction. The rotary transmission mechanism is installed behind the driver's seat of the vehicle, on the longitudinal beam of the chassis of the vehicle, and drives the suction disc rotary arm assembly to perform reciprocating rotary scanning. The lifting mechanism is installed on the upper part of the rotary transmission mechanism. The dust storage box assembly is installed above the rear wheels of the vehicle. The negative pressure system assembly is installed in the upper part of the dust storage box assembly. The garbage channel pipe assembly is installed behind the driver's seat of the vehicle to form a garbage channel between the suction disc rotary arm assembly, the rotary transmission mechanism, and the dust storage box assembly.

2. The electrically driven three-wheeled cleaning vehicle according to claim 1, characterized in that: The suction disc rotary arm assembly is composed of a suction disc and a rotary arm. The rotary arm is a welded structure, and the suction disc is composed of a ball, a nylon ring, a sleeve, a jacking rod, a compression spring, a switch base, a contact switch, a small cover plate, and a screw connection. The suction disc is installed below the rotary arm, and the rotary arm is connected to the rotary transmission mechanism through a flange and a bolt.

3. The electrically driven three-wheeled cleaning vehicle according to claim 2, characterized in that: The ground-touching buzzer assembly is installed at a corresponding position of the suction disc.

4. The electrically driven three-wheeled cleaning vehicle according to claim 1, characterized in that: The rotary transmission mechanism is composed of a guide sleeve, a machine base, an outer spline sleeve, a combined flange assembly, an inner spline large sprocket, a motor, a gear box, a small sprocket, a nylon guide sleeve, a limit disc contact pin assembly, a nylon stop block, a nylon ring, a lower flange of the outer spline sleeve, a long nylon ring, a short nylon ring, a roller chain, and a support iron plate. The combined flange assembly is composed of a combined flange, a nut, a positioning pin shaft, and a ball. The limit disc contact pin assembly is composed of an inner spline limit disc, a contact pin, a reversing travel switch, and a rivet, and is a limit travel automatic reversing combination. The motor, the small sprocket, the inner spline large sprocket, the outer spline sleeve, and the inner spline limit disc are all in spline transmission. The combined flange assembly of the transmission mechanism is a combined structure positioned by a pin shaft. The upper end face has a ball groove to arrange balls to offset the torque of the rotary mechanism. The inner spline limit disc of the transmission mechanism is in spline transmission with the spline sleeve to rotate synchronously. The reversing travel switch is fixed to the machine base by the contact pin to form a limit reversing device.

5. The electrically driven three-wheeled cleaning vehicle according to claim 1, characterized in that: The lifting mechanism is composed of a lifting control lever combination installed on the upper pulley. The lifting control lever combination is composed of a bolt, a shaft, a bearing, a bearing seat, a control lever, a latch, a small shaft, a torsion spring, a shape card, a handle, a fan-shaped groove wheel, a vertical column square steel pipe, and a fan-shaped eye plate. A spring balance mechanism composed of a spring pull rod screw, a spring seat, a bolt, a tension spring, a lifting rod, a steel wire rope, a hollow bolt, a left pulley, a middle pulley, a herringbone support, and a right pulley is used to balance the weight of the suction disc rotary arm. The pulley shafts of the left pulley, the middle pulley, and the right pulley of the lifting mechanism are supported by the left rear steel pipe of the vehicle. The center lines of the left pulley and the middle pulley are higher than that of the right pulley. The lifting control lever combination is fixed to the lower steel pipe vertical column on the right side of the driver's seat by the bearing seat. The operation of the control lever pushes and pulls the fan-shaped groove wheel to pull the steel wire rope to make the lifting mechanism lift. The latch of the control lever and the latch eye plate fixed to the right side of the driver's seat are used for step lifting.

6. The electrically driven three-wheeled cleaning vehicle according to claim 1, characterized in that: The garbage passage pipe assembly is assembled by a straight pipe, an upper flange, bolts, an inclined pipe, a square hole flange, a sealing gasket and a round hole flange; the lower end of the garbage passage pipe assembly is connected with a guide sleeve of a transmission mechanism through a flange, and the upper side of the garbage passage pipe assembly is fastened and connected with a garbage inlet of a dust storage box assembly through a flange, so as to form a complete passage for garbage being sucked into the dust storage box by a suction disc.

7. The electrically driven three-wheeled cleaning vehicle according to claim 1, characterized in that: The dust storage box assembly is located above the rear two wheels of the vehicle, and is provided with a garbage outlet door, an internally threaded handle, an inclined bottom plate, a partition column, a sealing gasket, a vertical partition, a box panel, a frame pipe, a top cover and a top cover sealing gasket.

8. The electrically driven three-wheeled cleaning vehicle according to claim 7, characterized in that: The garbage inlet is arranged above the front end of the dust storage box, a power button and a buzzer are arranged above the front end, the top cover is arranged on the top of the dust storage box, the garbage outlet door is arranged below the rear of the dust storage box, and a clear storage is arranged at the rear of the dust storage box to store larger artificial abandoned objects which cannot be sucked by the suction disc.

9. The electrically driven three-wheeled cleaning vehicle according to claim 1, characterized in that: The negative pressure system assembly is arranged in the dust storage box assembly and is assembled on the vertical partition of the dust storage box, so as to generate negative pressure for the suction disc and the pipeline to suck and filter dust and air; the negative pressure system assembly is assembled by a motor, an air outlet fine filter screen, a centrifugal fan, a cylindrical filter element, a filter element support, an impeller support, a bearing, a key, an impeller shaft, an impeller pressing plate, an inert impeller, a coarse filter screen, bolts and a cylindrical shape, the inert impeller is coaxially arranged on the vertical partition and the frame pipe from back to front, the inert impeller faces the garbage inlet of the dust storage box, and the fine filter screen is arranged at the outlet of the centrifugal fan.

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