Movable water spraying mechanism of self-service car washing equipment

By combining 3D point cloud data generated by LiDAR with motor components, the problem of precise control and flexibility of the moving spray arm in self-service car wash equipment has been solved, improving the safety and effectiveness of car washing.

CN223508239UActive Publication Date: 2025-11-04ANHUI LIXIN INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202423226674.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-11-04
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing self-service car wash equipment has shortcomings in terms of precise control, flexibility, safety protection mechanisms, and control algorithms for mobile water spray cleaning arms, which makes the cleaning arms prone to colliding with vehicles, affecting the car wash effect and safety.

Method used

A high-resolution 3D point cloud data is generated using LiDAR to create an environmental model. Combined with the coordination of a moving motor, moving gear, and steering motor, and using an ultrasonic sensor to sense the vehicle's position, the washing arm can move and steer precisely to avoid collisions.

Benefits of technology

It enables precise control and flexible cleaning of the mobile spray arm of the self-service car wash equipment, improving the safety and effectiveness of car washing and avoiding damage to the vehicle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The movable water spraying mechanism of the self-service car washing equipment comprises a car washing frame, an I-shaped frame, a sliding frame, a surrounding cleaning arm, a displacement component, a correction assembly, a foam machine and a high-pressure cleaning machine, the two ends of the I-shaped frame are fixedly installed on the two sides of the top of the car washing frame, and the two ends of the sliding frame are connected to the I-shaped frame in a sliding and sleeved mode. The laser radar is started to generate high-resolution three-dimensional point cloud data for a to-be-cleaned vehicle in the vehicle cleaning frame, so that an accurate environment model is created, the position of the to-be-cleaned vehicle is determined, and the vehicle is cleaned; then a movable motor, a movable gear and a displacement straight tooth are matched to drive a sliding frame to move on a movable frame by an accurate distance, a steering motor is started, the steering motor rotates to drive a transmission gear, a steering gear and a surrounding cleaning arm to conduct steering work, and an ultrasonic sensor facilitates the surrounding cleaning arm to sense the position of the vehicle; and collision with a vehicle during reversing around the cleaning arm is avoided.
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Description

Technical Field

[0001] This utility model relates to the technical field, and in particular to a mobile water spraying mechanism for a self-service car wash device. Background Technology

[0002] In modern urban life, with the rapid increase in the number of private cars, people's demand for convenient and efficient car wash services is increasing. Self-service car wash equipment has been widely used in the market due to its ease of operation and low cost. However, existing self-service car wash equipment still has some obvious shortcomings in design and technology, especially in the precise control of the moving water spray arm. The arm is prone to hitting vehicles during movement, which not only affects the user experience but may also damage the vehicle, causing economic losses to the user.

[0003] The existing self-service car wash equipment lacks precise distance control during the movement of its mobile water spray arms. Due to varying vehicle sizes and potential discrepancies in vehicle parking positions, the arm needs to adjust its distance from the vehicle during movement. However, existing arms typically rely on pre-set paths and lack real-time distance monitoring and adjustment capabilities, making it difficult to accurately control the distance between the arm and the vehicle in practice. When the arm approaches the vehicle, its lack of sufficient obstacle avoidance capabilities increases the risk of collisions, potentially leaving scratches, damaging the paint, or even destroying the vehicle body.

[0004] The mobile spray arms of existing self-service car wash equipment lack sufficient design flexibility. To achieve a thorough cleaning, the arm typically needs to move in multiple directions within a certain range to ensure the water spray covers all parts of the vehicle. However, due to design limitations, existing arm movements often follow a fixed trajectory, unable to dynamically adjust to the specific vehicle. Especially when dealing with different car models, a fixed-path arm may not be suitable for all vehicles, resulting in incomplete cleaning and potentially causing collisions due to excessive proximity to the vehicle body, affecting both washing effectiveness and safety.

[0005] Existing self-service car wash equipment has shortcomings in the safety protection mechanisms for mobile water spray cleaning arms. Although some high-end equipment is equipped with sensors to monitor the distance between the cleaning arm and the vehicle, the sensitivity and reaction speed of these sensors are often not ideal. In practical applications, due to factors such as ambient light and water mist, the sensors may fail to accurately identify obstacles, causing the cleaning arm to continue approaching the vehicle until a collision occurs. Furthermore, even if the sensors are functioning properly, the information processing speed of the feedback to the control system is slow, making it difficult to stop the cleaning arm's movement in time before a collision, thus failing to effectively avoid damage to the vehicle.

[0006] The control algorithms for the mobile water spray cleaning arms in existing self-service car wash equipment also need optimization. Currently, most devices use a control method based on preset paths, lacking the ability to intelligently learn and adapt. This means that when faced with different car models or special situations, the equipment cannot plan the optimal cleaning path according to the actual conditions, but instead uses a fixed cleaning pattern. This may not only lead to unsatisfactory cleaning results, but also potentially cause collisions and damage to the vehicle due to the cleaning arms being too close to the car body.

[0007] Existing self-service car wash equipment has significant shortcomings in the design of its mobile water spray cleaning arms, particularly in terms of precise control, flexibility, safety protection mechanisms, and control algorithms. These issues not only affect the car wash results but may also damage the vehicle.

[0008] Therefore, how to provide a mobile water spray mechanism for self-service car wash equipment is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0009] One objective of this invention is to provide a mobile spray mechanism for a self-service car wash. This invention is activated by a lidar to generate high-resolution three-dimensional point cloud data for the vehicle to be washed within the car wash rack, thereby creating an accurate environmental model, determining the position of the vehicle to be washed, and starting the washing process. Then, through the cooperation of a mobile motor, a mobile gear, and a displacement spur gear, the slide is moved precisely a distance on the mobile rack. Additionally, the steering motor is activated, and the rotation of the steering motor drives the transmission gear, the steering gear, and the surrounding washing arm to perform steering operations. An ultrasonic sensor facilitates the surrounding washing arm to sense the position of the vehicle, preventing the surrounding washing arm from hitting the vehicle when changing direction.

[0010] A mobile spray mechanism for a self-service car wash according to an embodiment of the present invention includes a car wash frame, an I-beam frame, a sliding frame, a surrounding cleaning arm, a displacement component, a correction component, a foam machine, and a high-pressure washer. The two ends of the I-beam frame are fixedly installed on the top sides of the car wash frame. The two ends of the sliding frame are slidably sleeved on the I-beam frame. The top of the surrounding cleaning arm is rotatably installed on the sliding frame. The displacement component is installed on the I-beam frame and the sliding frame. The correction component is fixedly installed on the car wash frame and the surrounding cleaning arm. The foam machine is fixedly installed on one side inside the I-beam frame, and the high-pressure washer is fixedly installed on the other side inside the I-beam frame.

[0011] The displacement component includes a moving component and a steering component. The moving component is fixedly installed on the top of the I-beam frame, and the steering component is installed on the sliding frame.

[0012] Furthermore, the movable component includes a movable frame, a sliding groove, and a displacement straight tooth, wherein the bottom of the movable frame is fixedly installed on the top of the I-beam frame, the sliding groove is opened on both sides of the inner top of the movable frame, and the non-toothed end of the displacement straight tooth is fixedly installed on the inner bottom of the movable frame.

[0013] Furthermore, the moving assembly also includes a slide, a moving motor, and a moving gear, wherein the bottom slider of the slide is slidably inserted into the slide groove, the top of the slide is fixedly installed on the inner top of the sliding frame, the moving motor is fixedly installed on the slide, and the moving gear is fixedly installed on the rotating shaft of the moving motor, and the moving gear meshes with a displacement spur gear.

[0014] Furthermore, the steering assembly includes a steering motor, a transmission gear, and a steering gear, wherein the steering motor is fixedly mounted on the sliding frame, the transmission gear is fixedly mounted on the rotating shaft of the steering motor, and the steering gear is fixedly mounted on the top of the surrounding cleaning arm, and the transmission gear meshes with the steering gear.

[0015] Furthermore, the steering assembly also includes a cover plate and a fixing rod. The outer wall of the cover plate is rotatably mounted on the inner top of the surrounding cleaning arm. One end of the fixing rod is fixedly mounted on the cover plate, and the other end of the fixing rod is fixedly mounted on the sliding frame.

[0016] Furthermore, a water spray nozzle and a foam nozzle are fixedly provided on the outside of the surrounding cleaning arm.

[0017] Furthermore, the correction assembly includes a lidar and an ultrasonic sensor. The lidar is fixedly installed on the four sides of the car wash frame, and the ultrasonic sensor is fixedly installed on both sides surrounding the washing arm.

[0018] Furthermore, it also includes a delivery pipe and an electric switch valve, wherein there are two delivery pipes, one end of each delivery pipe is fixedly installed on the foam machine and the high-pressure washer, respectively, and the electric switch valve is fixedly installed on the delivery pipe.

[0019] The beneficial effects of this utility model are:

[0020] This invention uses a lidar to generate high-resolution 3D point cloud data for the vehicle to be cleaned within the car wash rack, thereby creating an accurate environmental model, determining the position of the vehicle, and starting the cleaning process. Then, through the cooperation of a moving motor, moving gears, and displacement spur gears, the slide is moved precisely a distance on the moving frame. Additionally, the steering motor is activated, and its rotation drives the transmission gears, steering gears, and the surrounding cleaning arm to perform steering operations. An ultrasonic sensor facilitates the surrounding cleaning arm in sensing the position of the vehicle, preventing it from hitting the vehicle when the surrounding cleaning arm changes direction. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the mobile water spray mechanism of a self-service car wash device proposed in this utility model;

[0023] Figure 2 This utility model proposes a mobile water spray mechanism for a self-service car wash device. Figure 1 Enlarged view of point A;

[0024] Figure 3 This is a schematic diagram of the foam machine of the mobile water spraying mechanism of a self-service car wash device proposed in this utility model.

[0025] Figure 4 This utility model proposes a mobile water spray mechanism for a self-service car wash device. Figure 3 Enlarged view of point B.

[0026] In the diagram: 1. Wash frame; 2. I-beam frame; 3. Sliding frame; 4. Circular washing arm; 4.1. Water spray nozzle; 4.2. Foam nozzle; 5. Displacement component; 6. Correction assembly; 6.1. LiDAR; 6.2. Ultrasonic sensor; 7. Foam machine; 8. High-pressure washer; 9. Moving assembly; 9.1. Moving frame; 9.2. Slide; 9.3. Displacement spur gear; 9.4. Slide; 9.5. Moving motor; 9.6. Moving gear; 10. Steering assembly; 10.1. Steering motor; 10.2. Transmission gear; 10.3. Steering gear; 10.4. Cover plate; 10.5. Fixing rod; 11. Delivery pipe; 12. Electric switch valve. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] Please refer to Figures 1 to 4This utility model provides a mobile spray mechanism for a self-service car wash, including a car wash frame 1, an I-beam frame 2, a sliding frame 3, a surrounding cleaning arm 4, a displacement component 5, a correction component 6, a foam machine 7, and a high-pressure washer 8. Both ends of the I-beam frame 2 are fixedly installed on the top sides of the car wash frame 1. Both ends of the sliding frame 3 are slidably sleeved onto the I-beam frame 2. The top of the surrounding cleaning arm 4 is rotatably installed on the sliding frame 3, allowing it to rotate around the front and rear of the car to complete the cleaning action. The displacement component 5 is installed on the I-beam frame 2 and the sliding frame 3, and the correction component 6 is fixedly installed... On the car wash frame 1 and the surrounding washing arm 4, the foam machine 7 is fixedly installed on one side inside the I-beam frame 2, and the high-pressure washer 8 is fixedly installed on the other side inside the I-beam frame 2. It also includes a delivery pipe 11 and an electric switch valve 12. There are two delivery pipes 11, and one end of the two delivery pipes 11 is fixedly installed on the foam machine 7 and the high-pressure washer 8 respectively. The electric switch valve 12 is fixedly installed on the delivery pipe 11. The displacement component 5 includes a moving component 9 and a steering component 10. The moving component 9 is fixedly installed on the top of the I-beam frame 2, and the steering component 10 is installed on the sliding frame 3.

[0029] Specifically, the moving component 9 includes a moving frame 9.1, a slide groove 9.2, and a displacement spur gear 9.3. The bottom of the moving frame 9.1 is fixedly installed on the top of the I-beam frame 2. The slide groove 9.2 is opened on both sides of the inner top of the moving frame 9.1. The non-toothed end of the displacement spur gear 9.3 is fixedly installed on the inner bottom of the moving frame 9.1. The moving component 9 also includes a slide 9.4, a moving motor 9.5, and a moving gear 9.6. The bottom slider of the slide 9.4 is slidably inserted into the slide groove 9.2. The top of the slide 9.4 is fixedly installed on the inner top of the sliding frame 3. The moving motor 9.5 is fixedly installed on the slide 9.4 and provides power for movement. The moving gear 9.6 is fixedly installed on the rotating shaft of the moving motor 9.5 and meshes with the displacement spur gear 9.3.

[0030] More specifically, the steering assembly 10 includes a steering motor 10.1, a transmission gear 10.2, and a steering gear 10.3. The steering motor 10.1 is fixedly mounted on the sliding frame 3 and facilitates the rotation of the surrounding cleaning arm 4. The transmission gear 10.2 is fixedly mounted on the rotating shaft of the steering motor 10.1, and the steering gear 10.3 is fixedly mounted on the top of the surrounding cleaning arm 4. The transmission gear 10.2 and the steering gear 10.3 mesh. The steering assembly 10 also includes a cover plate 10.4 and a fixing rod 10.5. The outer wall of the cover plate 10.4 is rotatably mounted on the inner top of the surrounding cleaning arm 4. One end of the fixing rod 10.5 is fixedly mounted on the cover plate 10.4, and the other end of the fixing rod 10.5 is fixedly mounted on the sliding frame 3.

[0031] More specifically, a water spray nozzle 4.1 and a foam nozzle 4.2 are fixedly installed around the outside of the washing arm 4. The correction assembly 6 includes a lidar 6.1 and an ultrasonic sensor 6.2. The lidar 6.1 is fixedly installed on the four sides of the car wash frame 1. The lidar 6.1 generates high-resolution three-dimensional point cloud data to create an accurate environmental model and determine the position of the vehicle. The ultrasonic sensor 6.2 is fixedly installed on both sides of the washing arm 4. The ultrasonic sensor 6.2 facilitates the washing arm 4 in sensing the position of the vehicle.

[0032] Furthermore, the vehicle to be cleaned is driven into the car wash rack 1, and the driver starts the self-service car wash equipment by scanning a code. The LiDAR 6.1 is activated to generate high-resolution three-dimensional point cloud data for the vehicle to be cleaned in the car wash rack 1, thereby creating an accurate environmental model, determining the position of the vehicle to be cleaned, and starting the cleaning process.

[0033] The moving motor 9.5 is started, and the rotation of the moving motor 9.5 drives the rotation of the moving gear 9.6. The moving motor 9.5 and the moving gear 9.6 move along the displacement spur gear 9.3. The moving motor 9.5 drives the slide 9.4 to move. The slide 9.4 moves within the moving frame 9.1. The slide 9.4 drives the sliding frame 3 to move. The sliding frame 3 drives the surrounding cleaning arm 4 to move. The water spray nozzle 4.1 or foam nozzle 4.2 on the surrounding cleaning arm 4 cleans the vehicle. The ultrasonic sensor 6.2 helps the surrounding cleaning arm 4 sense the position of the vehicle and prevents the surrounding cleaning arm 4 from hitting the vehicle.

[0034] When the surrounding cleaning arm 4 needs to change direction at the front or rear of the vehicle, the steering motor 10.1 is started. The rotation of the steering motor 10.1 drives the rotation of the transmission gear 10.2, which in turn drives the rotation of the steering gear 10.3. The rotation of the steering gear 10.3 drives the surrounding cleaning arm 4 to perform the steering operation.

[0035] The foam machine 7 and the high-pressure washer 8 are delivered to the foam nozzle 4.2 and the water nozzle 4.1 respectively through the delivery pipe 11 and the electric switch valve 12.

[0036] This invention uses a lidar 6.1 to generate high-resolution three-dimensional point cloud data for the vehicle to be cleaned within the car wash rack 1, thereby creating an accurate environmental model, determining the position of the vehicle to be cleaned, and starting the cleaning process. Then, through the cooperation of the moving motor 9.5, the moving gear 9.6, and the displacement spur gear 9.3, the slide 9.4 is moved precisely on the moving frame 9.1. Additionally, the steering motor 10.1 is activated, and the rotation of the steering motor 10.1 drives the transmission gear 10.2, the steering gear 10.3, and the surrounding cleaning arm 4 to perform steering operations. The ultrasonic sensor 6.2 facilitates the surrounding cleaning arm 4 to sense the position of the vehicle, preventing the surrounding cleaning arm 4 from hitting the vehicle when changing direction.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mobile water spray mechanism for a self-service car wash, characterized in that, The system includes a car wash frame (1), an I-beam frame (2), a sliding frame (3), a surrounding cleaning arm (4), a displacement component (5), a correction component (6), a foam machine (7), and a high-pressure washer (8). The two ends of the I-beam frame (2) are fixedly installed on the top sides of the car wash frame (1). The two ends of the sliding frame (3) are slidably sleeved on the I-beam frame (2). The top of the surrounding cleaning arm (4) is rotatably installed on the sliding frame (3). The displacement component (5) is installed on the I-beam frame (2) and the sliding frame (3). The correction component (6) is fixedly installed on the car wash frame (1) and the surrounding cleaning arm (4). The foam machine (7) is fixedly installed on one side inside the I-beam frame (2). The high-pressure washer (8) is fixedly installed on the other side inside the I-beam frame (2). The displacement component (5) includes a moving component (9) and a steering component (10). The moving component (9) is fixedly installed on the top of the I-beam frame (2), and the steering component (10) is installed on the sliding frame (3).

2. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, The moving component (9) includes a moving frame (9.1), a slide groove (9.2), and a displacement straight tooth (9.3). The bottom of the moving frame (9.1) is fixedly installed on the top of the I-beam frame (2). The slide groove (9.2) is opened on both sides of the top of the moving frame (9.1). The non-toothed end of the displacement straight tooth (9.3) is fixedly installed on the bottom of the moving frame (9.1).

3. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, The moving component (9) further includes a slide (9.4), a moving motor (9.5), and a moving gear (9.6). The bottom slider of the slide (9.4) is slidably inserted into the slide groove (9.2). The top of the slide (9.4) is fixedly installed on the inner top of the sliding frame (3). The moving motor (9.5) is fixedly installed on the slide (9.4). The moving gear (9.6) is fixedly installed on the rotating shaft of the moving motor (9.5). The moving gear (9.6) meshes with the displacement spur gear (9.3).

4. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, The steering assembly (10) includes a steering motor (10.1), a transmission gear (10.2), and a steering gear (10.3). The steering motor (10.1) is fixedly mounted on the sliding frame (3), the transmission gear (10.2) is fixedly mounted on the rotating shaft of the steering motor (10.1), and the steering gear (10.3) is fixedly mounted on the top of the surrounding cleaning arm (4). The transmission gear (10.2) and the steering gear (10.3) mesh with each other.

5. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, The steering assembly (10) also includes a cover plate (10.4) and a fixing rod (10.5). The outer wall of the cover plate (10.4) is rotatably mounted on the inner top of the surrounding cleaning arm (4). One end of the fixing rod (10.5) is fixedly mounted on the cover plate (10.4), and the other end of the fixing rod (10.5) is fixedly mounted on the sliding frame (3).

6. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, A water spray nozzle (4.1) is fixedly installed on the outside of the surrounding cleaning arm (4), and a foam nozzle (4.2) is fixedly installed on the outside of the surrounding cleaning arm (4).

7. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, The correction component (6) includes a lidar (6.1) and an ultrasonic sensor (6.2). The lidar (6.1) is fixedly installed on the four sides of the car wash frame (1), and the ultrasonic sensor (6.2) is fixedly installed on both sides of the surrounding cleaning arm (4).

8. The mobile water spray mechanism of a self-service car wash equipment according to claim 1, characterized in that, It also includes a delivery pipe (11) and an electric switch valve (12), wherein there are two delivery pipes (11), one end of each delivery pipe (11) is fixedly installed on the foam machine (7) and the high-pressure cleaner (8), and the electric switch valve (12) is fixedly installed on the delivery pipe (11).