Automatic car washer

Abstract

The utility model provides a kind of automatic car washer, is equipped with top brush subassembly, including the top brush pedestal of liftable motion, top brush pedestal is equipped with top brush and height detector, wherein height detector is located top brush front part, including two groups of opposite radiation type sensor, is divided into low sensor and high sensor, low sensor measurement position is not lower than top brush bottom end.The utility model sets up two groups of opposite radiation type sensor in top brush front part, detects vehicle height variation, and cooperates low sensor continuous unshading delay drop, high sensor shielding immediate rise control logic, reduces interference misjudgment, realizes dynamic self-adaptive adjustment to top brush working position with vehicle body contour.

Description

Technical Field

[0001] This utility model belongs to the field of automated car wash technology, specifically relating to an automatic car wash machine. Background Technology

[0002] Automatic car wash machines continuously monitor the vehicle's dimensions during operation to dynamically adjust the height of the top brush, automatically adapting to the vehicle's contours. To achieve this, the following measurement and control methods are currently the main approaches:

[0003] One approach is to control the top brush using mechanical counterweight or current feedback, but this only works when the top brush is running, and the structure is relatively complex and requires a large amount of space.

[0004] The second method is to use ultrasonic sensors for vehicle body detection, but this method is prone to misjudgment due to deviations in the reflection angle.

[0005] Thirdly, laser sensors are used, but due to the ease with which the beam can penetrate car windows and the interference of water vapor, there is also a high false alarm rate. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic car wash machine to solve the problem of stable vehicle body detection.

[0007] This utility model achieves the above-mentioned technical objectives through the following technical means.

[0008] An automatic car wash machine, equipped with a top brush assembly, includes:

[0009] The top brush base is capable of lifting and lowering.

[0010] Top brush, mounted on top brush base;

[0011] The height detector is set on the top brush base and located at the front of the top brush. It includes two sets of through-beam sensors, namely a low-position sensor and a high-position sensor. The measurement position of the low-position sensor is not lower than the bottom end of the top brush.

[0012] Furthermore, each group of the through-beam sensors is arranged on both sides of the car wash aisle.

[0013] Furthermore, the top brush is a rolling brush that spans across the car wash aisle.

[0014] Furthermore, the top brush base is equipped with a top spray track, which is parallel to the width of the car wash aisle and located above the front side of the top brush, on which a top spray assembly is movably connected.

[0015] Furthermore, the top spray assembly is provided in two sets.

[0016] Furthermore, the top spray assembly is equipped with a boundary detector for detecting the left and right boundaries of the vehicle body.

[0017] Furthermore, the boundary detector is a diffuse reflection photoelectric sensor, an ultrasonic sensor, or a lidar.

[0018] Furthermore, it includes walking tracks located on both sides of the car wash aisle, with columns movably connected to the walking tracks, and the top brush base being vertically and flexibly connected between the columns on both sides.

[0019] Furthermore, the low-position sensor is positioned 0-2 cm above the bottom of the top brush.

[0020] Furthermore, the high-position sensor is located 3 to 10 cm directly above the low-position sensor.

[0021] The beneficial effects of this utility model are as follows:

[0022] (1) This utility model provides an automatic car wash machine. By setting two sets of through-beam sensors in front of the top brush to detect changes in the height of the car body, and in conjunction with the control logic of the low-position sensor continuously unobstructed for a delayed descent and the high-position sensor immediately rising when obstructed, interference and misjudgment are reduced, and the working position of the top brush is dynamically and adaptively adjusted according to the contour of the car body.

[0023] (2) By adding a boundary detector to the top spray assembly, the top spray assembly is prevented from exceeding the vehicle body range, thus reducing ineffective water spraying and improving resource utilization. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the automatic car wash machine of this utility model;

[0025] Figure 2 This is a schematic diagram of the top brush assembly in this utility model;

[0026] Figure 3 This is a schematic diagram showing the operating status of the automatic car wash machine of this utility model.

[0027] Figure label:

[0028] 11-Travel track; 12-Column; 13-Top brush base; 14-Top spray track;

[0029] 2-Top brush; 3-Top spray assembly; 4-Height detector; 41-Low position sensor;

[0030] 42 - High-position sensor. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein similar or identical reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] like Figure 1 The automatic car wash machine shown includes a rectangular frame with a car wash aisle inside the frame, capable of holding cars (sedans, SUVs, and other passenger vehicles). Walking tracks 11 are provided on both sides of the aisle. Each walking track 11 has a column 12, which can move along the walking track 11. Lifting tracks are provided on the columns 12, and a top brush base 13 is connected between the lifting tracks of the two columns 12. The top brush base 13 spans across the aisle and can move back and forth along the aisle (via the walking track 11) and can also move up and down along the columns 12 in the aisle. A top brush assembly is provided on the top brush base 13.

[0033] Note 1: Except Figure 1 In addition to the rectangular frame structure shown, other equivalent structures can be used in practice to ensure that the top brush base 13 (and its top brush assembly) spans across the car wash aisle and can move back and forth and rise and fall relative to the vehicle to be washed; for example, a gantry structure can be used, that is, a gantry frame that can move above the aisle is set up, and the top brush base 13 is suspended in the gantry frame. In addition, if the car is driven autonomously during the car wash process, the walking track 11 can be eliminated.

[0034] Note 2: Figure 1 The automatic car wash shown only shows the top brush assembly; in actual car washes, other components can be added as needed, such as side brush assemblies for side cleaning of cars.

[0035] like Figure 2 The top brush assembly shown includes a top brush 2 and a top spray assembly 3, wherein:

[0036] Top brush 2 is a roller brush that spans across the car wash aisle and is driven by a motor to continuously rotate and wash the top surface of the vehicle.

[0037] Two sets of top spray components 3 are movably connected to the top spray track 14. Each set has downward-facing nozzles (the water supply lines connecting the nozzles are omitted in the figure) for spraying detergent onto the vehicle's roof. The top spray track 14 is fixed above and in front of the top brush 2 (along the direction of travel of the top brush 2 during car washing) by a bracket, parallel to the axis of the top brush 2. This allows adjustment of the position of the top spray components 3, enabling the two top spray components 3 to perform a back-and-forth sweeping spray along the left-right direction of the vehicle during washing. To reduce ineffective spraying, each set of top spray components 3 is equipped with a boundary detector to detect the left and right boundaries of the vehicle body, preventing the top spray components 3 from moving beyond the vehicle's boundaries. The boundary detector can specifically employ a diffuse reflection photoelectric sensor, ultrasonic sensor, lidar, etc.

[0038] A height detector 4 is installed on the top brush base 13 to detect the height of the vehicle's roof. This embodiment specifically uses two sets of through-beam sensors: a low-position sensor 41 and a high-position sensor 42. The two sets of through-beam sensors are fixed to the front of the top brush 2 by brackets (as close to the top brush 2 as possible without interference). Each set of through-beam sensors is positioned on the left and right sides of the car wash aisle; the measurement position (horizontal plane) of the low-position sensor 41 is close to the bottom of the top brush 2 (i.e., as shown in the image). Figure 3 As shown, the high-position sensor 42 is located about 5cm above the low-position sensor 41 (0-2cm above the lowest point of the top brush 2).

[0039] like Figure 3 As shown, after the vehicle to be washed enters the car wash aisle, the top brush base 13, carrying its top brush assembly, moves from the left to the right side of the diagram. During this movement, based on the detection data from the low-position sensor 41 and the high-position sensor 42, the lifting and lowering of the top brush assembly is dynamically adjusted to achieve adaptive cleaning of the vehicle's roof surface. The control logic is as follows:

[0040] The top brush base 13 starts from the set initial height position and moves from the front of the vehicle to the rear. During the movement:

[0041] 1) If the low-position sensor 41 is not blocked (by the vehicle body), after a set delay, the top brush base 13 will be controlled to descend until the low-position sensor 41 is blocked and then stops.

[0042] 2) If the high-position sensor 42 is blocked, the top brush base 13 will be immediately triggered to rise until it is free from the blockage and then stop.

[0043] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0044] This utility model is not limited to the above-described embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of this utility model shall fall within the protection scope of this utility model.

Claims

1. An automatic car wash machine characterized by: A top brush assembly is provided, including: The top brush base (13) is capable of vertical movement; Top brush (2) is mounted on top brush base (13); The height detector (4) is set on the top brush base (13) and located in front of the top brush (2). It includes two sets of through-beam sensors, namely a low-position sensor (41) and a high-position sensor (42). The measurement position of the low-position sensor (41) is not lower than the bottom of the top brush (2).

2. The automatic car wash machine according to claim 1, characterized in that: Each group of through-beam sensors is arranged on both sides of the car wash aisle.

3. The automatic car wash machine of claim 1, wherein: The top brush (2) is a rolling brush that spans across the car wash aisle.

4. The automatic car wash machine of claim 1, wherein: The top brush base (13) is provided with a top spray track (14), which is parallel to the width direction of the car wash aisle and located above the front side of the top brush (2). A top spray assembly (3) is movably connected to it.

5. The automatic car wash machine of claim 4, wherein: The top spray assembly (3) has two sets.

6. The automatic car wash machine of claim 4, wherein: The top spray assembly (3) is equipped with a boundary detector for detecting the left and right boundaries of the vehicle body.

7. The automatic car wash machine according to claim 6, characterized in that: The boundary detector is a diffuse reflection photoelectric sensor, an ultrasonic sensor, or a lidar.

8. The automatic car wash of claim 1, wherein: It includes a walking track (11) on both sides of the car wash aisle, with a column (12) movably connected on the walking track (11), and the top brush base (13) being vertically connected between the two columns (12).

9. The automatic car wash machine of claim 1, wherein: The low-position sensor (41) measures a position 0-2cm above the bottom of the top brush (2).

10. The automatic car wash of claim 1, wherein: The high-position sensor (42) is located 3 to 10 cm directly above the low-position sensor (41).

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