A car washing machine capable of adjusting the washing distance according to the size of the car

Abstract

The utility model discloses a car washing machine that adjusts car washing distance according to car size, relates to car washing machine technical field, including the bottom plate of cuboid, four support columns, a pair of roof beams, a pair of cross beams, car frame, rotating mechanism, moving mechanism and car arm, four support columns fixedly arranged at the four corners of bottom plate upper surface, and the both ends of a pair of roof beams are fixedly connected with the upper end of two support columns before bottom plate and the upper end of two support columns behind bottom plate respectively, and a pair of cross beams parallel design and its front and back two ends are fixedly connected with a pair of roof beams respectively, the utility model discloses the car size that the sensor detection system detected according to plc control system to adjust the rotation angle of car arm in the moving process, and the loss of transverse movement is compensated through deflection, thereby accurately controls the distance of car arm / nozzle and each part of car body side, guarantees the cleaning effect, avoids the scratch, and fundamentally guarantees the stable, efficient cleaning effect of various car types.

Description

Technical Field

[0001] This utility model relates to the field of car wash machine technology, specifically a car wash machine that adjusts the washing distance according to the size of the car. Background Technology

[0002] With the popularization of automation technology, unattended automatic car wash machines have been widely used in the commercial car wash sector due to their high efficiency and convenience. Existing automatic car wash machines can be mainly divided into the following two categories based on the movement of their walking and cleaning mechanisms: The first type of car wash machine adopts a composite motion mode of forward and backward movement (Y-axis), left and right movement (X-axis), and rotation of the arm (or car wash arm), such as... Figure 1 As shown. The arm of this type of equipment is usually mounted on a gantry or slide that can move laterally. Its advantages are: through complex multi-axis linkage, it can precisely control the distance between the arm or nozzle and the vehicle surface, thereby adapting to vehicles of different widths and contours, and achieving relatively good cleaning effect and coverage.

[0003] However, this type of car wash machine has significant drawbacks: its mechanical structure is exceptionally complex, integrating numerous motors, guide rails, belts, and sensors. This complex structure directly leads to high manufacturing costs, increased equipment failure rates, and cumbersome and costly maintenance. The stability of the X-axis lateral movement mechanism is particularly critical; any deviation or malfunction can, at best, affect the car wash results, and at worst, scratch the paint, causing economic losses and reputational risks for the operator.

[0004] To overcome the structural complexity of the first type of car wash machine, the second type adopts a simplified design. This means the car wash machine only moves forward and backward (Y-axis) in conjunction with the rotation of the arm, such as... Figure 1 As shown in the diagram. This design omits the entire lateral movement structure, greatly simplifying the mechanical structure, significantly reducing manufacturing costs, improving operational stability, and lowering the failure rate.

[0005] However, the drawbacks of this simplified design are also prominent: due to the lack of lateral movement capability, the path of the arm as it moves along both sides of the vehicle remains unchanged. For wider vehicles, the arm may get too close to the vehicle body, posing a risk of scratching; for narrower vehicles, the arm may not be able to effectively contact the sides of the vehicle body, resulting in incomplete cleaning, significantly reduced cleaning effect, and an inability to guarantee consistent car wash quality.

[0006] In summary, those skilled in the art face a long-standing contradiction: pursuing superior car washing results (requiring adaptive distance adjustment) necessitates accepting complex structures and high costs; conversely, pursuing structural simplicity and stability requires sacrificing washing performance and adaptability. Therefore, there is an urgent need for an innovative technical solution that can intelligently adapt to different car models without significantly increasing mechanical complexity, ensuring excellent car washing results. Utility Model Content

[0007] To address the aforementioned shortcomings of existing technologies, this utility model provides a car wash machine that adjusts the washing distance based on vehicle size. Through a PLC control system, the machine adjusts the rotation angle of the washing arm during movement based on the vehicle size detected by a sensor system. This deflection compensates for any lack of lateral movement, thereby precisely controlling the distance between the washing arm / nozzle and various parts of the vehicle's side. This ensures effective cleaning while preventing scratches, fundamentally guaranteeing stable and efficient cleaning results for various vehicle models.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a car wash machine that adjusts the washing distance according to the car size, comprising a rectangular base plate, four support columns, a pair of top beams, a pair of cross beams, a frame, a rotating mechanism, a moving mechanism, and a car arm. The four support columns are fixedly installed at the four corners of the upper surface of the base plate. The two ends of the pair of top beams are fixedly connected to the upper ends of the two front support columns and the two rear support columns of the base plate, respectively. The pair of cross beams are designed in parallel, and their front and rear ends are fixedly connected to the pair of top beams, respectively. The frame is installed between the pair of cross beams via the moving mechanism and can move on the cross beams. The rotating mechanism is located at the center of the frame. The car arm is fixedly connected to the rotating end of the rotating mechanism. The car arm consists of a horizontal section, an inclined section, and... The vertical sections are connected sequentially, and multiple nozzles are evenly arranged on the inner sidewall of the arm. Mounting plates are respectively installed on the two support columns at the front of the base plate. Each mounting plate has a pair of first sensors arranged front to back to monitor the position of the vehicle's front end after it enters the platform. Columns are fixedly installed at the center positions of the left and right sides of the base plate, and each column has a third sensor installed to monitor the vehicle's left and right distance. A support plate is fixedly installed on the frame, and a second sensor is installed on the support plate to monitor the position of the vehicle's rear end. The rotating and moving mechanisms are controlled by a PLC control system. The PLC control system acquires information from the second and third sensors, calculates the vehicle's dimensions, and controls the rotation angle of the arm to adjust the distance between the arm and the vehicle.

[0009] Preferably, the frame includes a pair of fixing plates and a base, with the pair of fixing plates fixedly disposed at both ends of the base.

[0010] Preferably, the rotating mechanism includes a first motor, a first reducer, and a rotating shaft. The first motor and the first reducer are fixedly mounted on the base. The output end of the first motor is connected to the first reducer, the output end of the first reducer is fixedly connected to the upper end of the rotating shaft, and the arm is fixedly connected to the lower end of the rotating shaft.

[0011] Preferably, the moving mechanism includes a second motor, a second reducer, a main shaft, and a pair of drive wheels. The second motor and the second reducer are fixedly mounted on the inner sidewall of the fixed plate. The output end of the second motor is connected to the second reducer, and the output end of the second reducer is connected to the main shaft. The main shaft rotates through the pair of fixed plates, and the pair of drive wheels are located at both ends of the main shaft. The drive wheels are able to travel on the crossbeam.

[0012] Preferably, a driven wheel is rotatably disposed on the outer side wall of the fixed plate, and the driven wheel is mounted on the crossbeam.

[0013] Preferably, the first sensor is a photoelectric switch sensor.

[0014] Preferably, the second and third sensors are ultrasonic sensors.

[0015] This utility model provides a car wash machine that adjusts the washing distance according to the size of the car, which has the following beneficial effects: 1. This utility model abandons the traditional complex X-axis lateral movement structure, retaining only the two core movements of forward and backward movement and arm rotation. By introducing a sensor detection system (composed of a second and a third sensor) to acquire real-time contour data such as the vehicle's width and length, the PLC control system dynamically and intelligently adjusts the arm's rotation angle during linear movement based on this data. This angular deflection compensates for the lack of lateral movement, thereby precisely controlling the distance between the arm / nozzle and various parts of the vehicle's side. This ensures both effective cleaning and prevents scratches, fundamentally guaranteeing stable and efficient cleaning results for various vehicle models. 2. The moving mechanism of this utility model is equipped with a driven wheel to balance the frame and make its movement more stable; two pairs of first sensors are set on the mounting plate on the front bracket, arranged in front and behind, to monitor the parking position after the vehicle enters. Specifically, after the vehicle enters, the front of the vehicle stops between the front and rear sensors to ensure the accuracy of the parking position so that the subsequent second sensor can accurately measure the size of the vehicle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram illustrating the adjustable arm distance in existing technology. Figure 2 This is a schematic diagram illustrating the non-adjustable arm distance in existing technology. Figure 3 This is a schematic diagram of the entire utility model; Figure 4 This is a partially enlarged view of the present invention; Figure 5 This is a schematic diagram of the adjustable arm distance of this utility model.

[0017] In the diagram: 1. Base plate; 2. Support column; 3. Top beam; 4. Crossbeam; 5. Mounting plate; 6. Frame; 7. Rotating mechanism; 8. Moving mechanism; 9. Arm; 10. Nozzle; 11. Support plate; 12. Second sensor; 13. Column; 14. Third sensor; 51. First sensor; 61. Fixing plate; 62. Base; 63. Fixing rod; 71. First motor; 72. First reducer; 73. Shaft; 81. Second motor; 82. Second reducer; 83. Main shaft; 84. Drive wheel; 85. Driven wheel. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-5As shown, a car wash machine that adjusts the washing distance according to the car size includes a rectangular base plate, four support columns, a pair of top beams, a pair of crossbeams, a frame, a rotating mechanism, a moving mechanism, and a car arm. The four support columns are fixedly installed at the four corners of the upper surface of the base plate. The two ends of the pair of top beams are fixedly connected to the upper ends of the two front support columns and the two rear support columns of the base plate, respectively. The pair of crossbeams are designed in parallel, and their front and rear ends are fixedly connected to the pair of top beams, respectively. The frame is installed between the pair of crossbeams through the moving mechanism and can move on the crossbeams. The rotating mechanism is located at the center of the frame. The car arm is connected to... The rotating end of the rotating mechanism is fixedly connected. The arm is composed of a horizontal section, an inclined section, and a vertical section connected sequentially. Multiple nozzles are evenly arranged on the inner wall of the arm. Mounting plates are respectively installed on the two front support columns of the base plate. Each mounting plate has a pair of first sensors arranged front-to-back to monitor the position of the vehicle's front end after it enters the platform. Columns are fixedly installed at the center positions of the left and right sides of the base plate, each column having a third sensor installed to monitor the vehicle's left and right distances. A support plate is fixedly installed on the frame, and a second sensor is installed on the support plate to monitor the position of the vehicle's rear end. The rotating... The mechanism and the moving mechanism are controlled by a PLC control system. The PLC control system acquires information and calculates the vehicle's dimensions through monitoring by a second and a third sensor, and controls the rotation angle of the arm to adjust the distance between the arm and the vehicle. The frame includes a pair of fixed plates and a base, with the fixed plates fixedly mounted at both ends of the base. The rotating mechanism includes a first motor, a first reducer, and a rotating shaft. The first motor and the first reducer are fixedly mounted on the base, with the output end of the first motor connected to the first reducer and the output end of the first reducer fixedly connected to the upper end of the rotating shaft. The arm is fixedly connected to the lower end of the rotating shaft. The moving mechanism includes a second motor, a second reducer, a main shaft, and a pair of drive wheels. The second motor and the second reducer are fixedly mounted on the inner wall of the fixed plates, with the output end of the second motor connected to the second reducer and the output end of the second reducer connected to the main shaft. The main shaft rotates through the pair of fixed plates, and the pair of drive wheels are located at both ends of the main shaft, allowing the drive wheels to travel on the crossbeam. A driven wheel is rotatably mounted on the outer wall of the fixed plates and sits on the crossbeam. The first sensor is a photoelectric switch sensor; the second and third sensors are ultrasonic sensors.

[0020] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows: According to the instruction manual Figure 1-5It is known that when this utility model is in operation, the frame is positioned at the center of the crossbeam, and the vehicle drives onto the base plate. The vehicle's front position is controlled by the first sensor. Specifically, the first sensor is connected to an external flow screen. When the front of the vehicle stops between the two first sensors on the mounting plate, the flow screen prompts the operator to stop the vehicle. This technology is existing technology. The second and third sensors form a sensor detection system. The second sensor can detect the position of the rear of the vehicle, and the two left and right third sensors can monitor the left and right positions of the vehicle. Since the position of the sensor detection system is determined, the vehicle's dimensions can be calculated by the PLC control system through the monitoring of the second and third sensors. By controlling the coordination of the moving and rotating mechanisms, the angle and movement of the arm are controlled during the car wash, thereby controlling the distance between the arm and the vehicle. The nozzles on the arm, connected to the external cleaning fluid supply system, perform a circumferential spray wash on the vehicle. For example, when the arm is to the left or right of the vehicle... Figure 5 As shown, when cleaning large vehicles (large sedans), the arm direction is at a 90-degree angle to the movement direction. At this angle, the arm is furthest from the center, expanding the arm's path range. When cleaning smaller vehicles, the arm direction forms an acute angle to the movement direction, thus getting closer to the vehicle. Here, the specific angle is related to the vehicle size, the length of the horizontal section of the arm, and the required distance between the arm and the vehicle. These are simple geometric and calculation relationships that can be understood by those skilled in the art. The principle is the same when cleaning the front and rear of a vehicle as it is for left and right cleaning. This invention abandons the traditional complex X-axis lateral movement structure, retaining only the two core movements: front-to-back movement and arm rotation. By introducing a sensor detection system to acquire the vehicle's width, length, and other contour data in real time, the PLC control system dynamically and intelligently adjusts the arm's rotation angle during linear movement based on this data. This angle deflection compensates for the lack of lateral movement, thereby precisely controlling the distance between the arm / nozzle and various parts of the vehicle's side. This ensures both cleaning effectiveness and avoids scratches, fundamentally guaranteeing stable and efficient cleaning results for various vehicle models.

[0021] The frame includes a pair of mounting plates and a base, with the mounting plates fixedly mounted at both ends of the base.

[0022] The rotating mechanism includes a first motor, a first reducer, and a rotating shaft. The first motor and the first reducer are fixedly mounted on the base. The output end of the first motor is connected to the first reducer, and the output end of the first reducer is fixedly connected to the upper end of the rotating shaft. The arm is fixedly connected to the lower end of the rotating shaft. During operation, the rotation of the first motor drives the rotating shaft to rotate via the first reducer, thereby driving the arm to rotate. The structure is simple and the drive is quick.

[0023] The moving mechanism includes a second motor, a second reducer, a main shaft, and a pair of drive wheels. The second motor and the second reducer are fixedly mounted on the inner wall of the fixed plate. The output end of the second motor is connected to the second reducer, and the output end of the second reducer is connected to the main shaft. The main shaft rotates through the pair of fixed plates. The pair of drive wheels are located at both ends of the main shaft, allowing the drive wheels to move on the crossbeam. During operation, the second motor drives the main shaft to rotate via the second reducer, which in turn drives the drive wheels to rotate, thus causing the frame to move on the crossbeam. The frame and its components have a certain weight, ensuring friction between the drive wheels and the crossbeam, guaranteeing stability and preventing slippage. The drive wheels are similar to train wheels, designed to limit movement and prevent deviation. Alternatively, existing limiting mechanisms can be added to ensure axial and vertical stability.

[0024] Among them, a driven wheel is rotatably installed on the outer wall of the fixed plate, and the driven wheel is mounted on the crossbeam, which is a drive wheel to improve stability.

[0025] The first sensor is a photoelectric switch sensor, which is used in conjunction with an external flow panel. The second and third sensors are ultrasonic sensors, which offer excellent accuracy and high safety for short-range distance measurement.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A car wash machine that adjusts the washing distance according to the size of the car, characterized in that, The vehicle includes a rectangular base plate, four support columns, a pair of top beams, a pair of crossbeams, a frame, a rotating mechanism, a moving mechanism, and a boom. The four support columns are fixedly mounted at the four corners of the upper surface of the base plate. The two ends of the pair of top beams are fixedly connected to the upper ends of the two front and two rear support columns of the base plate, respectively. The pair of crossbeams are parallel and their front and rear ends are fixedly connected to the pair of top beams, respectively. The frame is positioned between the pair of crossbeams via the moving mechanism and can move on the crossbeams. The rotating mechanism is located at the center of the frame. The boom is fixedly connected to the rotating end of the rotating mechanism. The boom consists of a horizontal section, an inclined section, and a vertical section connected sequentially. Multiple nozzles are evenly distributed on the inner wall of the boom. Mounting plates are respectively installed on the two support columns at the front of the base plate. Each mounting plate has a pair of first sensors arranged front to back to monitor the position of the front of the vehicle after it enters. Columns are fixedly installed at the center positions of the left and right sides of the base plate, and each column has a third sensor installed to monitor the left and right distance of the vehicle. A support plate is fixedly installed on the frame, and a second sensor is installed on the support plate to monitor the position of the rear of the vehicle. The rotating mechanism and the moving mechanism are controlled by a PLC control system. The PLC control system obtains information from the monitoring of the second and third sensors, calculates the size of the vehicle, and controls the rotation angle of the arm to adjust the distance between the arm and the vehicle.

2. A car wash machine that adjusts the washing distance according to the car size according to claim 1, characterized in that, The frame includes a pair of mounting plates and a base, with the pair of mounting plates fixedly mounted at both ends of the base.

3. A car wash machine that adjusts the washing distance according to the car size according to claim 2, characterized in that, The rotating mechanism includes a first motor, a first reducer, and a rotating shaft. The first motor and the first reducer are fixedly mounted on the base. The output end of the first motor is connected to the first reducer, and the output end of the first reducer is fixedly connected to the upper end of the rotating shaft. The arm is fixedly connected to the lower end of the rotating shaft.

4. A car wash machine that adjusts the washing distance according to the car size according to claim 2, characterized in that, The moving mechanism includes a second motor, a second reducer, a main shaft, and a pair of drive wheels. The second motor and the second reducer are fixedly mounted on the inner sidewall of the fixed plate. The output end of the second motor is connected to the second reducer, and the output end of the second reducer is connected to the main shaft. The main shaft rotates through the pair of fixed plates, and the pair of drive wheels are located at both ends of the main shaft. The drive wheels are able to travel on the crossbeam.

5. A car wash machine that adjusts the washing distance according to the car size according to claim 4, characterized in that, A driven wheel is rotatably mounted on the outer wall of the fixed plate, and the driven wheel sits on the crossbeam.

6. A car wash machine according to claim 1, wherein the washing distance is adjusted according to the car size, characterized in that, The first sensor is a photoelectric switch sensor.

7. A car wash machine according to claim 1, wherein the washing distance is adjusted according to the car size, characterized in that, The second and third sensors are ultrasonic sensors.

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