Motorcycle washing device

Abstract

The motorcycle washing device comprises a guide rail, a walking device arranged on the guide rail and moving along the direction of the guide rail, a side brush module arranged on the walking device and used for brushing the two sides of a vehicle to be washed, a top brush module used for brushing the top of the vehicle to be washed, a washing module used for spraying cleaning liquid and clean water to the vehicle to be washed, a parking positioning unit comprising a bearing unit used for bearing the vehicle to be washed, a front wheel positioning unit used for positioning the front wheel of the vehicle to be washed, and a rear wheel positioning unit used for positioning the rear wheel of the vehicle to be washed. In the motorcycle washing device, the side brush module is responsible for brushing the vertical surface areas of the two sides of the motorcycle body, wheels, mudguards and the like, and the top brush module is specially used for deep brushing of the conventional cleaning blind areas such as the top of the motorcycle, the seat, the handlebar and the rearview mirror, so that the cleaning dead angle is greatly reduced and the cleaning effect of the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of car wash equipment technology, and in particular to a motorcycle car wash device. Background Technology

[0002] During operation, motorcycles accumulate a large amount of mud, dust, oil, brake dust, and various pollutants from the road. If these pollutants are not cleaned in time, they will not only affect the appearance of the vehicle but also accelerate the aging and corrosion of the paint. They may even enter the vehicle's mechanical parts and electronic systems, leading to wear, malfunctions, and even safety hazards.

[0003] Currently, motorcycle cleaning is mainly divided into two methods: manual cleaning and machine cleaning. Manual cleaning is the most traditional method, usually using a high-pressure water gun in conjunction with manual wiping. This cleaning method has many disadvantages: First, manual cleaning is extremely inefficient, and it takes a long time to clean a motorcycle, which cannot meet the needs of high-volume commercial operations; second, manual cleaning is labor-intensive and has high labor costs.

[0004] While existing machine cleaning methods can automate motorcycle cleaning, current equipment typically only features side brush modules, meaning it can only effectively clean the sides of the motorcycle, failing to clean the roof. This results in large cleaning blind spots and unsatisfactory cleaning results. Secondly, existing cleaning equipment simply places the motorcycle in the cleaning area without taking effective measures to secure it. This makes the motorcycle prone to tipping over due to water flow and brush impacts during the cleaning process, potentially causing damage. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of the prior art and provide a motorcycle washing device.

[0006] The objective of this invention is achieved through the following technical solution: a motorcycle washing device, comprising:

[0007] guide; The traveling device is mounted on a guide rail and moves along the direction of the guide rail; the traveling device is equipped with a side brush module for brushing the sides of the vehicle to be cleaned, a top brush module for brushing the top of the vehicle to be cleaned, and a cleaning module for spraying cleaning liquid and clean water onto the vehicle to be cleaned. The parking positioning unit includes a support unit for carrying the vehicle to be cleaned, a front wheel positioning unit for positioning the front wheels of the vehicle to be cleaned, and a rear wheel positioning unit for positioning the rear wheels of the vehicle to be cleaned.

[0008] Preferably, the side brush module includes side brushes arranged on both sides of the walking device and a side brush motor for driving the side brushes to rotate; a brushing area is formed between the side brushes on both sides.

[0009] Preferably, the side brush includes an upper roller brush body and a lower roller brush body, wherein the diameter of the lower roller brush body is larger than that of the upper roller brush body.

[0010] Preferably, the top brush module includes a lifting device, a top brush motor mounted on the lifting device, and a top brush connected to the top brush motor.

[0011] Preferably, the top of the walking device is also provided with a blower module.

[0012] Preferably, the cleaning module includes a clean water pipeline and a cleaning agent pipeline. The clean water pipeline is equipped with a clean water nozzle for spraying clean water onto the vehicle to be cleaned, and the cleaning agent pipeline is equipped with a cleaning agent nozzle for spraying cleaning agent onto the vehicle to be cleaned.

[0013] Preferably, the support unit includes a base, a carrier plate located above the base for parking the vehicle to be cleaned, and a roller guide mechanism is provided between the carrier plate and the base so that the carrier plate can move along the axial direction of the base.

[0014] Preferably, the front wheel positioning unit includes a main support frame, on which are provided a side positioning component for lateral positioning of the front wheels of the vehicle to be cleaned and an axial positioning component for axial positioning of the front wheels of the vehicle to be cleaned; the rear wheel positioning unit includes a shifting drive mechanism and a positioning frame disposed on the shifting drive mechanism for positioning the rear wheels of the vehicle to be cleaned, wherein the shifting drive mechanism drives the positioning frame to switch between a working position and a clearance position; when the positioning frame is in the working position, the positioning frame is located above the carrier plate; when the positioning frame is in the clearance position, the positioning frame is moved away from above the carrier plate.

[0015] Preferably, the repositioning drive mechanism includes a base plate, a guide groove plate, a movable arm, and a telescopic drive device. The guide groove plate is disposed on the base plate and has a first guide groove, a second guide groove, and a third guide groove. The first guide groove is a straight groove. The second guide groove includes a first straight groove segment parallel to and of equal length to the first guide groove and a first arc groove segment located at one end of the first straight groove segment. The third guide groove includes a second straight groove segment parallel to and of equal length to the second guide groove and a second arc groove segment located at one end of the second straight groove segment. The movable arm is provided with a first sliding shaft, a second sliding shaft, and a third sliding shaft, which are respectively connected to the first guide groove, the second guide groove, and the third guide groove. One end of the telescopic drive device is connected to the base plate, and the other end is connected to the second sliding shaft. A positioning frame is disposed at one end of the movable arm.

[0016] Preferably, an upper limit plate is provided above the guide groove plate, and an interlayer space is provided between the upper limit plate and the guide groove plate, with the movable arm located in the interlayer space; a wheel frame is provided on the movable arm, and an upper limit wheel and a lower limit wheel are provided on the wheel frame, with the upper limit wheel abutting against the upper limit plate and the lower limit wheel abutting against the guide groove plate.

[0017] The beneficial effects of this invention are: 1. In this invention, the side brush module is responsible for brushing the vertical areas such as the sides of the motorcycle body, wheels, and mudguards, while the top brush module is specifically designed for deep brushing of traditional cleaning blind spots such as the motorcycle top, seat, handlebars, and rearview mirrors, forming a full coverage of all major external surfaces of the motorcycle body, greatly reducing cleaning dead spots and improving the cleaning effect of the vehicle.

[0018] 2. During the cleaning process, the walking device drives the side brush, top brush and cleaning module to move synchronously along the guide rail, realizing gradual cleaning along the length of the vehicle. The cleaning process involves spraying cleaning fluid to soften and decompose dirt, then brushing with a brush, and finally rinsing with clean water. This process can evenly and thoroughly remove stubborn pollutants such as mud, oil, and brake dust attached to the vehicle body, and the cleaning effect is greatly improved compared with traditional single cleaning mode equipment.

[0019] 3. During the cleaning process, the front wheel positioning unit and the rear wheel positioning unit precisely engage and fix the front and rear wheels of the vehicle, forming a two-way mechanical constraint. This effectively resists the impact of high-pressure water flow and the lateral thrust generated by the high-speed rotating brush, preventing the vehicle to be cleaned from shifting or tipping over during the cleaning process and ensuring the stability of the vehicle during cleaning and parking. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a structural diagram of the side brush module, top brush module, and cleaning module.

[0022] Figure 3 This is a structural diagram of the blower module.

[0023] Figure 4 This is a structural diagram of the parking positioning module.

[0024] Figure 5 This is a schematic diagram of the front wheel alignment unit.

[0025] Figure 6 This is a schematic diagram of the rear wheel alignment unit.

[0026] Figure 7 This is a schematic diagram of the rear wheel positioning unit after removing the upper limit plate.

[0027] Figure 8 This is a structural schematic diagram of the load-bearing unit.

[0028] Figure 9 This is a diagram showing a motorcycle parked on a parking positioning unit.

[0029] In the diagram: 1. Walking device; 2. Guide rail; 3. Front wheel positioning unit; 3-1. Main support frame; 3-2. Side positioning component; 3-3. First flexible sleeve; 3-4. Axial positioning component; 3-5. First sensor; 4. Rear wheel positioning unit; 4-1. Positioning frame; 4-2. Second flexible sleeve; 4-3. Second sensor; 4-4. Guide groove plate; 4-4a. First guide groove; 4-4b. Second guide groove; 4-4c. Third guide groove; 4-5. Upper limit plate; 4-6. Telescopic drive device; 4-7. Spring component; 4- 8. Movable arm; 4-9. Wheel frame; 4-10. Lower limit wheel; 4-11. Upper limit wheel; 4-12. First guide wheel; 4-13. Second guide wheel; 4-14. Base plate; 5. Bearing unit; 5-1. Base; 5-1a. Roller guide groove; 5-2. Carrier plate; 5-3. Roller; 6. Side brush; 6-1. Upper roller brush body; 6-2. Lower roller brush body; 7. Blowing module; 8. Side brush motor; 9. Lifting device; 10. Top brush motor; 11. Top brush; 12. Clean water pipeline; 13. Clean water nozzle; 14. Cleaning agent nozzle. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0031] like Figures 1 to 8 As shown, a motorcycle washing device includes: Guide rail 2; The walking device 1 is mounted on the guide rail 2 and moves along the direction of the guide rail 2. The walking device 1 is equipped with a side brush module for brushing the sides of the vehicle to be cleaned, a top brush module for brushing the top of the vehicle to be cleaned, and a cleaning module for spraying cleaning liquid and clean water onto the vehicle to be cleaned. The parking positioning unit includes a support unit 5 for carrying the vehicle to be cleaned, a front wheel positioning unit 3 for positioning the front wheels of the vehicle to be cleaned, and a rear wheel positioning unit 4 for positioning the rear wheels of the vehicle to be cleaned.

[0032] In this invention, the side brush module is responsible for cleaning the vertical areas of the motorcycle body, such as the sides, wheels, and mudguards, while the top brush module is specifically designed for deep cleaning of traditional blind spots such as the motorcycle top, seat, handlebars, and rearview mirrors, forming a full coverage of all major external surfaces of the motorcycle body, greatly reducing cleaning dead spots and improving the cleaning effect of the vehicle.

[0033] The walking device 1 drives the side brush 6, top brush 11 and cleaning module to move synchronously along the guide rail 2 to achieve gradual cleaning along the length of the vehicle. During the cleaning process, the cleaning module first sprays cleaning liquid to soften and decompose dirt, then brushes the dirt, and finally rinses it with clean water. This process can evenly and thoroughly remove stubborn pollutants such as mud, oil, and brake dust attached to the vehicle body, and the cleaning effect is greatly improved compared with traditional single cleaning mode equipment.

[0034] During the cleaning process, the front wheel positioning unit 3 and the rear wheel positioning unit 4 precisely engage and fix the front and rear wheels of the vehicle, forming a two-way mechanical constraint. This effectively resists the impact of high-pressure water flow and the lateral thrust generated by the high-speed rotating brush, preventing the vehicle to be cleaned from shifting or tipping over during the cleaning process and ensuring the stability of the vehicle during cleaning and parking.

[0035] Specifically, the side brush module includes side brushes 6 arranged on both sides of the walking device 1 and side brush motors 8 for driving the side brushes 6 to rotate; a brushing area is formed between the side brushes 6 on both sides. During the cleaning process, the vehicle to be cleaned passes through the brushing area between the side brushes 6 on both sides, and the rotating side brushes 6 brush both sides of the vehicle to be cleaned.

[0036] The side brush 6 comprises an upper roller brush body 6-1 and a lower roller brush body 6-2, with the lower roller brush body 6-2 having a larger diameter than the upper roller brush body 6-1. The side of a motorcycle body is wider and protruding at the top, and narrower and tapering at the bottom. Traditional single-diameter roller brushes cannot simultaneously adhere to the different areas, resulting in cleaning blind spots due to poor contact. This invention addresses the different morphological characteristics of the upper and lower parts of the motorcycle by designing the side brush 6 with a non-uniform diameter—smaller at the top and larger at the bottom. During brushing, it can adhere to the entire side of the vehicle being cleaned, reducing cleaning blind spots and improving cleaning effectiveness.

[0037] The top brush module includes a lifting device 9, a top brush motor 10 mounted on the lifting device 9, and a top brush 11 connected to the top brush motor 10. The top brush 11 is driven to rotate by the top brush motor 10, and its height is adjusted by the lifting device 9. Since the top of a traditional motorcycle has an uneven profile—for example, the dashboard area is higher than the seat area—the real-time height adjustment of the top brush 11 during cleaning effectively matches the varying heights of the motorcycle's top, increasing the contact area between the top brush 11 and the motorcycle's top, and reducing blind spots in cleaning the motorcycle's top.

[0038] The top of the walking device 1 is also equipped with a blower module 7. The blower module 7 uses a high-power centrifugal fan to output high-speed airflow to dry the entire motorcycle after cleaning and remove water stains. After the vehicle is cleaned, the blower module 7 quickly dries the vehicle, reducing the waiting time for drying and avoiding corrosion of metal parts caused by prolonged moisture retention on the vehicle surface, which is a problem with traditional air drying.

[0039] The cleaning module includes a clean water pipeline 12 and a cleaning agent pipeline. The clean water pipeline 12 is equipped with clean water nozzles 13 for spraying clean water onto the vehicle to be cleaned, and the cleaning agent pipeline is equipped with cleaning agent nozzles 14 for spraying cleaning agent onto the vehicle to be cleaned. There are four clean water nozzles 13, distributed in four positions: "upper left", "lower left", "upper right", and "lower right", which can thoroughly wash the vehicle from multiple angles and avoid cleaning dead spots.

[0040] The cleaning agent nozzle 14 is used to spray cleaning fluid onto the body of the vehicle to be cleaned. The cleaning agent nozzle 14 is installed on the lifting device 9 together with the top brush 11 and rises and falls synchronously with the top brush 11.

[0041] The support unit 5 includes a base 5-1 and a carrier plate 5-2 located above the base 5-1 for parking the vehicle to be cleaned. A roller guide mechanism is provided between the carrier plate 5-2 and the base 5-1 to allow the carrier plate 5-2 to move along the axial direction of the base 5-1. The carrier plate 5-2 is provided with a groove arranged along the axial direction of the carrier plate 5-2. The cross-section of the groove is trapezoidal. The vehicle is parked in the groove, and the groove provides initial restraint for the vehicle.

[0042] The roller guide mechanism includes roller guide grooves 5-1a disposed on both sides of the base 5-1 and rollers 5-3 disposed on both sides of the carrier plate 5-2 and corresponding to the roller guide grooves 5-1a. The rollers 5-3 are located in the roller guide grooves 5-1a and can roll linearly along the roller guide grooves 5-1a. Through the cooperation between the rollers 5-3 and the roller guide grooves 5-1a, the rollers 5-3 can move with low resistance in a straight line on the base 5-1.

[0043] Before cleaning, the vehicle to be cleaned is moved onto the carrier plate 5-2. Then, the carrier plate 5-2 is moved as a whole so that the vehicle to be cleaned can be accurately positioned for cleaning. The front wheel positioning unit 3 and the rear wheel positioning unit 4 limit the front and rear wheels of the vehicle respectively, so that the vehicle is stably parked in the current cleaning position, effectively fixing the vehicle and preventing the vehicle from overturning during the cleaning process.

[0044] Specifically, the front wheel positioning unit 3 includes a main support frame 3-1, on which a side positioning component 3-2 for side positioning of the front wheels of the vehicle to be cleaned and an axial positioning component 3-4 for axial positioning of the front wheels of the vehicle to be cleaned are provided; the rear wheel positioning unit 4 includes a shifting drive mechanism and a positioning frame 4-1 provided on the shifting drive mechanism for positioning the rear wheels of the vehicle to be cleaned. The shifting drive mechanism drives the positioning frame 4-1 to switch between a working position and a clearance position; when the positioning frame 4-1 is in the working position, the positioning frame 4-1 is located above the carrier plate 5-2; when the positioning frame 4-1 is in the clearance position, the positioning frame 4-1 is moved away from above the carrier plate 5-2.

[0045] The main support frame 3-1 is fixed to the base (or ground) of the car wash device. The side positioning component 3-2 is arranged in a figure-eight shape, with the vehicle's front wheels locked into the middle area of ​​the side positioning component 3-2, restricting the left and right movement of the front wheels. The axial positioning component 3-4 has a horizontally placed "U"-shaped structure, with the vehicle's front wheels embedded in the axial positioning component 3-4 to achieve axial positioning of the front wheels. The rear wheel positioning unit 4 achieves rapid position switching of the positioning frame 4-1 through a switching drive mechanism: when the vehicle is mounted on or off the loading plate 5-2, the positioning frame 4-1 moves completely to the clearance position outside the loading plate 5-2, thus avoiding the vehicle's up and down path; when the vehicle is parked on the loading plate 5-2, the positioning frame 4-1 can quickly switch to the working position above the loading plate 5-2 and lock the vehicle's rear wheels to achieve rear wheel positioning.

[0046] Specifically, the displacement drive mechanism includes a base plate 4-14, a guide groove plate 4-4, a movable arm 4-8, and a telescopic drive device 4-6. The guide groove plate 4-4 is mounted on the base plate 4-14 and has a first guide groove 4-4a, a second guide groove 4-4b, and a third guide groove 4-4c. The first guide groove 4-4a is a straight groove. The second guide groove 4-4b includes a first straight groove segment parallel to and of equal length to the first guide groove 4-4a and a first arc groove segment located at one end of the first straight groove segment. The third guide groove... 4-4c includes a second straight groove segment that is parallel to and of equal length to the second guide groove 4-4b and a second arc groove segment located at one end of the second straight groove segment; the movable arm 4-8 is provided with a first sliding shaft, a second sliding shaft and a third sliding shaft, which are respectively connected to the first guide groove 4-4a, the second guide groove 4-4b and the third guide groove 4-4c; one end of the telescopic drive device 4-6 is connected to the base plate 4-14 and the other end is connected to the second sliding shaft; the positioning frame 4-1 is provided at one end of the movable arm 4-8.

[0047] When the positioning frame 4-1 switches from the working position to the avoidance position, the telescopic drive device 4-6 pushes the second sliding shaft to move in one direction. The first sliding shaft first moves in a pure straight line along the first straight groove, while the second and third sliding shafts also move synchronously along their respective straight groove segments. This moves the positioning frame 4-1 from the working position along the length of the carrier plate 5-2 so that the rear wheels of the vehicle can be removed from the positioning frame 4-1. After the second and third sliding shafts enter the arc groove segment, the movable arm 4-8 rotates around the first sliding shaft as the center, causing the positioning frame 4-1 to flip outwards from the carrier plate 5-2, thus removing the positioning frame 4-1 from above the carrier plate 5-2. This composite motion trajectory of "translation first, then rotation" ensures that the positioning frame 4-1 will not interfere with the rear wheels of the vehicle during the switching process.

[0048] Similarly, when the positioning frame 4-1 switches from the avoidance position to the working position, the telescopic drive device 4-6 pushes the second sliding shaft to move in another direction, and the positioning frame 4-1 moves in the opposite order, that is, a compound motion trajectory of "rotation first and then translation". The positioning frame 4-1 first rotates to the top of the carrier plate 5-2, and then translates along the length of the carrier plate 5-2 so that the rear wheels of the vehicle are engaged in the positioning frame 4-1, thereby achieving the positioning of the rear wheels of the vehicle.

[0049] In this embodiment, the telescopic drive device 4-6 is an electric cylinder.

[0050] A spring component 4-7 is provided between the base plate 4-14 and the third sliding shaft. In this embodiment, the spring component 4-7 is a gas spring, with one end of the gas spring hinged to the base plate 4-14 and the other end hinged to the third sliding shaft.

[0051] A first guide wheel 4-12 is provided on the first sliding shaft. The first guide wheel 4-12 is located in the first guide groove 4-4a and rolls along the first guide groove 4-4a. The diameter of the first guide wheel 4-12 is the same as the groove width of the first guide groove 4-4a.

[0052] The third sliding shaft is provided with a second guide wheel 4-13, which is located in the third guide groove 4-4c and rolls along the third guide groove 4-4c. The diameter of the second guide wheel 4-13 is the same as the groove width of the third guide groove 4-4c.

[0053] Furthermore, an upper limit plate 4-5 is provided above the guide groove plate 4-4, and a sandwich space is provided between the upper limit plate 4-5 and the guide groove plate 4-4. The movable arm 4-8 is located in the sandwich space. A wheel frame 4-9 is provided on the movable arm 4-8, and an upper limit wheel 4-11 and a lower limit wheel 4-10 are provided on the wheel frame 4-9. The upper limit wheel 4-11 abuts against the upper limit plate 4-5, and the lower limit wheel 4-10 abuts against the guide groove plate 4-4. The movable arm 4-8 is constrained within the sandwich space formed by the guide groove plate 4-4 and the upper limit plate 4-5. The upper and lower limit wheels respectively abut against the two plates, forming a bidirectional vertical limit on the movable arm 4-8, preventing vertical jumping, warping, and skew during the operation of the mechanism and the switching of work positions, and ensuring that the movable arm 4-8 always maintains a horizontal posture.

[0054] The side positioning component 3-2 is wrapped with a first flexible sleeve 3-3, and the positioning frame 4-1 is wrapped with a second flexible sleeve 4-2. Both the first flexible sleeve 3-3 and the second flexible sleeve 4-2 are made of rubber. Rubber has good elasticity, and when a vehicle enters the positioning area, the first flexible sleeve 3-3 and the second flexible sleeve 4-2 can buffer the impact force, preventing hard metal parts from directly impacting the tires, rims, and body, effectively avoiding scratches, bumps, and dents, and protecting the vehicle's appearance and accessories.

[0055] The side positioning component 3-2 is equipped with a first sensor 3-5 for detecting whether the wheel is stuck, and the positioning frame 4-1 is equipped with a second sensor 4-3 for detecting whether the wheel is stuck. Both the first sensor 3-5 and the second sensor 4-3 are infrared sensors.

[0056] This invention is not limited to the preferred embodiments described above. Anyone can derive other products in various forms under the guidance of this invention. However, regardless of any changes in shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this invention.

Claims

1. A motorcycle washing device, characterized in that, include: guide; The traveling device is mounted on a guide rail and moves along the direction of the guide rail; the traveling device is equipped with a side brush module for brushing the sides of the vehicle to be cleaned, a top brush module for brushing the top of the vehicle to be cleaned, and a cleaning module for spraying cleaning liquid and clean water onto the vehicle to be cleaned. The parking positioning unit includes a support unit for carrying the vehicle to be cleaned, a front wheel positioning unit for positioning the front wheels of the vehicle to be cleaned, and a rear wheel positioning unit for positioning the rear wheels of the vehicle to be cleaned.

2. The motorcycle washing device according to claim 1, characterized in that, The side brush module includes side brushes arranged on both sides of the walking device and a side brush motor for driving the side brushes to rotate; a brushing area is formed between the side brushes on both sides.

3. The motorcycle washing device according to claim 2, characterized in that, The side brush includes an upper roller brush body and a lower roller brush body, with the diameter of the lower roller brush body being larger than that of the upper roller brush body.

4. The motorcycle washing device according to claim 1, characterized in that, The top brush module includes a lifting device, a top brush motor mounted on the lifting device, and a top brush connected to the top brush motor.

5. The motorcycle washing device according to claim 1, characterized in that, The top of the walking device is also equipped with a blower module.

6. The motorcycle washing device according to claim 1, characterized in that, The cleaning module includes a clean water pipeline and a cleaning agent pipeline. The clean water pipeline is equipped with a clean water nozzle for spraying clean water onto the vehicle to be cleaned, and the cleaning agent pipeline is equipped with a cleaning agent nozzle for spraying cleaning agent onto the vehicle to be cleaned.

7. The motorcycle washing device according to claim 1, characterized in that, The support unit includes a base and a carrier plate located above the base for parking vehicles to be cleaned. A roller guide mechanism is provided between the carrier plate and the base so that the carrier plate can move along the axial direction of the base.

8. The motorcycle washing device according to claim 7, characterized in that, The front wheel positioning unit includes a main support frame, on which are mounted a side positioning component for lateral positioning of the front wheels of the vehicle to be cleaned and an axial positioning component for axial positioning of the front wheels of the vehicle to be cleaned. The rear wheel positioning unit includes a shifting drive mechanism and a positioning frame mounted on the shifting drive mechanism for positioning the rear wheels of the vehicle to be cleaned. The shifting drive mechanism drives the positioning frame to switch between a working position and a clearance position. When the positioning frame is in the working position, it is located above the carrier plate. When the positioning frame is in the clearance position, it moves away from above the carrier plate.

9. The motorcycle washing device according to claim 8, characterized in that, The displacement drive mechanism includes a base plate, a guide groove plate, a movable arm, and a telescopic drive device. The guide groove plate is disposed on the base plate and is provided with a first guide groove, a second guide groove, and a third guide groove. The first guide groove is a straight groove. The second guide groove includes a first straight groove segment that is parallel to the first guide groove and of equal length, and a first arc groove segment located at one end of the first straight groove segment. The third guide groove includes a second straight groove segment that is parallel to the second guide groove and of equal length, and a second arc groove segment located at one end of the second straight groove segment. The movable arm is equipped with a first sliding shaft, a second sliding shaft, and a third sliding shaft, which are respectively connected to the first guide groove, the second guide groove, and the third guide groove; one end of the telescopic drive device is connected to the base plate, and the other end is connected to the second sliding shaft; a positioning frame is set at one end of the movable arm.

10. The motorcycle washing device according to claim 9, characterized in that, An upper limit plate is provided above the guide groove plate, and a sandwich space is provided between the upper limit plate and the guide groove plate. The movable arm is located in the sandwich space. A wheel frame is provided on the movable arm, and an upper limit wheel and a lower limit wheel are provided on the wheel frame. The upper limit wheel abuts against the upper limit plate, and the lower limit wheel abuts against the guide groove plate.

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