A cleaning roller brush device for a vehicle

Abstract

This utility model relates to the field of cleaning vehicles, specifically to a roller brush device for cleaning vehicles. It includes a roller brush frame, a hanger for connecting external equipment in the middle of the frame, water spraying mechanisms on both sides of the frame, and a cover on the outside of the frame. An angle adjustment mechanism is arranged along the length of the frame, with one end connected to the hanger and the other end connected to the frame. A roller brush rotation assembly is installed inside the frame and includes a rotary motor. The output end of the motor is connected to a long roller brush shaft, and a bristle assembly is mounted on the shaft. This utility model solves the manufacturing and maintenance problems of large-size roller brush devices. Damaged brushes can be replaced individually, and the cleaning angle can be dynamically adjusted according to the actual scene based on the perceived distance to the cleaning surface, thereby improving the adaptability of the device to the surface to be cleaned and enhancing the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of cleaning machinery, and in particular to a roller brush device for cleaning vehicles. Background Technology

[0002] Solar panels in photovoltaic power plants are installed in arrays at an angle in the open air. Sand, dust, debris, and corrosive substances in the atmosphere easily adhere to their surfaces. If not cleaned promptly, the solar panel surfaces become covered, affecting power generation efficiency. Similarly, heliostats, in large-scale installations, require regular surface cleaning due to their open-air working environment. Cleaning is also essential for fragile panels in structures like subway entrances and covered bridges. Currently, the cleaning of glass panels, heliostats, and solar panels is primarily done using mechanized cleaning vehicles. Taking photovoltaic power plants as an example, each row of photovoltaic array panels is nearly 5 meters wide or even wider. Therefore, to efficiently complete the cleaning work, the design of the cleaning rollers must consider both the length of the rollers to cover the width of the photovoltaic array panels and the cleaning effect.

[0003] Most existing roller brush structures are monolithic and relatively short. Manufacturing monolithic roller brushes for longer lengths is difficult and maintenance is challenging. Assembled roller brushes are often too large to maintain or replace, and their large size limits the flexibility of adjusting the cleaning angle. For example, Chinese utility model patent CN205042784U discloses a modular solar panel cleaning head, which is assembled from two independent modules—a roller brush assembly and a brush holder assembly—through a detachable connection. While this modular design facilitates overall assembly and disassembly, the use of a robotic arm still means that angle adjustment relies on the arm's movement. Furthermore, the monolithic structure of the roller brush assembly makes individual brush replacement difficult. Utility Model Content

[0004] To address the technical problems of complex manufacturing structure, inconvenient maintenance, and difficulty in flexibly adjusting the cleaning angle of existing cleaning truck roller brushes, this utility model provides a roller brush device for cleaning trucks.

[0005] This utility model provides a car cleaning roller brush device, including: a roller brush frame, a hanger for connecting external equipment in the middle of the roller brush frame, water spraying mechanisms on both sides of the roller brush frame, and a cover on the outside of the roller brush frame; the hanger is hinged to the roller brush frame at both ends; an angle adjustment mechanism is arranged along the length of the roller brush frame, one end is connected to the hanger, and the other end is connected to the roller brush frame; and a roller brush rotation assembly is installed on the inner side of the roller brush frame, including a rotary motor, the output end of which is connected to a long roller brush shaft, and the long roller brush shaft is equipped with a bristle assembly.

[0006] Furthermore, the angle adjustment mechanism includes: a sway cylinder, a connecting rod, and a spring connected in sequence; one end of the sway cylinder is connected to a hanger, and the other end is hinged to a connecting rod, the other end of which is hinged to a roller brush frame; one end of the spring is connected to the connecting rod, and the other end is connected to the roller brush frame; wherein, the center lines of the sway cylinder, the connecting rod, and the spring are in the same plane.

[0007] Furthermore, it also includes an adjusting rod, one end of which is connected to the spring and the other end is hinged to the roller brush holder.

[0008] Furthermore, the long shaft of the roller brush is a hollow shaft, with a drive shaft and a driven shaft respectively connected to both ends by tension sleeves, and several bristle assemblies are detachably sleeved on the outer periphery of the long shaft of the roller brush.

[0009] Furthermore, both the drive shaft and the driven shaft are provided with grooved nuts and pressure plates for restricting the movement of the brush assembly.

[0010] Furthermore, a lower fixing plate is provided at one end of the roller brush holder away from the angle adjustment mechanism, and an upper fixing plate is provided at the other end. A rotary motor mounting plate is installed on the lower fixing plate, and the rotary motor is installed on the motor mounting plate. The drive shaft passes through a bearing seat and is connected to the output end of the rotary motor. The driven shaft is connected to the upper fixing plate through a bearing seat.

[0011] Furthermore, the inner hole of the bristle assembly is non-circular, and the outer periphery is provided with at least one ring of bristles.

[0012] Furthermore, the water spraying mechanism includes a high-pressure pipeline and a low-pressure pipeline. The low-pressure pipeline is used to spray low-pressure water to wet and reduce dust, and the high-pressure pipeline is used to spray high-pressure water for rinsing.

[0013] Furthermore, the high-pressure pipeline includes a first high-pressure water pipe and a second high-pressure water pipe, which are installed on one side of the hanger and simultaneously located outside the housing. A ball valve is provided between the first and second high-pressure water pipes. The first and second high-pressure water pipes are respectively connected to high-pressure spray bars on both sides of the housing. The low-pressure pipeline includes a first low-pressure water pipe and a second low-pressure water pipe installed on the other side of the hanger. A ball valve is also provided between the first and second low-pressure water pipes. The first and second low-pressure water pipes are respectively connected to low-pressure spray bars on both sides of the housing. The ball valve connects to an external water circuit. A high-pressure nozzle is installed on one end face of the high-pressure spray bar corresponding to the cleaning end face, and a low-pressure nozzle is installed on one end face of the low-pressure spray bar corresponding to the cleaning end face. The high-pressure nozzles are inclined towards the direction of the brush assembly.

[0014] Furthermore, the roller brush holder is also equipped with a distance sensor, which is used to detect the distance between the roller brush and the cleaning surface and feed it back to the vehicle controller so that the sway cylinder can make corresponding extension and retraction adjustments.

[0015] Beneficial effects:

[0016] This utility model's cleaning roller brush device solves the manufacturing and maintenance problems of large-size roller brush devices. It employs a detachable manufacturing process for the roller brush's long shaft, drive shaft, driven shaft, and brush assembly, facilitating individual replacement of damaged brushes and reducing operating costs. An angle adjustment mechanism, utilizing a sway cylinder, connecting rod, spring, and distance sensor, limits the swing amplitude using springs and adjusting rods to ensure bristle compression against the cleaning surface. It also dynamically adjusts the cleaning angle based on the perceived distance to the cleaning surface, improving the device's compatibility with the surface and enhancing cleaning effectiveness. The device uses a combination of high and low pressure water for rinsing, with two asynchronous switches. Low-pressure water is sprayed from the forward side to wet and reduce dust, while high-pressure water is sprayed from the rear side for rinsing. The high-pressure nozzles are angled towards the forward direction, resulting in better cleaning performance compared to existing technologies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort. In the drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.

[0018] Figure 1 This is a schematic diagram of the structure of a car cleaning roller brush device according to the present invention;

[0019] Figure 2 This is a side view of the cleaning roller brush device for vehicles according to this utility model;

[0020] Figure 3 This is a schematic diagram of the roller brush frame structure of the cleaning roller brush device for vehicles according to this utility model;

[0021] Figure 4 This is a schematic diagram of the roller brush rotation assembly in the cleaning vehicle roller brush device of this utility model;

[0022] Figure 5 This is a schematic diagram of the bristle assembly structure;

[0023] Figure 6 This is a schematic diagram of an embodiment of a cleaning vehicle provided by this utility model. Detailed Implementation

[0024] 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.

[0025] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is referred to as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0026] It should also be noted that if the embodiments of this utility model involve directional indicators, such as up, down, left, right, front, back, etc., these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. Furthermore, if the embodiments of this utility model involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance, or implicitly indicating the number of technical features indicated or the order of execution of the method. Those skilled in the art will understand that anything within the scope of the utility model's technical concept that does not violate its essential points should be included in the protection scope of this utility model.

[0027] An embodiment of the present invention is a roller brush device for cleaning vehicles, such as... Figures 1 to 5 As shown, the device includes a roller brush frame 2 for providing support and a roller brush rotary assembly 1 for cleaning. A hanger 9 for connecting external equipment such as a telescopic beam is located in the middle of the roller brush frame 2. Water spraying mechanisms are located on both sides of the roller brush frame 2, and a cover 4 is located on the outside of the roller brush frame 2. The hangers 9 are hinged to the roller brush frame at both ends. Thus, the entire roller brush device is suspended below the telescopic beam of the external equipment via the hangers, allowing for multi-angle swinging. Compared to the prior art method of directly connecting the roller brush to a robotic arm, its angle adjustment is more flexible.

[0028] An angle adjustment mechanism is provided along the length of the roller brush frame 2, with one end connected to the hanger 9 and the other end connected to the roller brush frame 2;

[0029] A roller brush rotary assembly 1 is installed inside the roller brush frame 2 and includes a rotary motor 101. The output end of the rotary motor 101 is connected to a long roller brush shaft 112, and a bristle assembly 113 is installed on the long roller brush shaft 112.

[0030] In this embodiment, the present invention employs a split manufacturing process for the roller brush, with the roller brush rotating assembly and roller brush frame being detachably connected. This reduces the assembly and maintenance difficulty and cost of the roller brush device, allowing for a significant increase in the size of the roller brush device to accommodate the cleaning of photovoltaic module panels of various sizes. Simultaneously, an angle adjustment mechanism is used to ensure that the bristles are compressed and adhered to the cleaning surface, and to dynamically adjust the cleaning angle according to the actual scene based on the sensed distance to the cleaning surface. This improves the adaptability of the device to the surface to be cleaned, resulting in a significant cleaning effect.

[0031] In a preferred embodiment, the angle adjustment mechanism includes: a sway cylinder 14, a connecting rod 15, and a spring 16 connected in sequence; one end of the sway cylinder 14 is connected to the hanger 9, and the other end is hinged to the connecting rod 15; one end of the connecting rod 15 is hinged to the sway cylinder 14, and the other end is hinged to the roller brush frame 2. One end of the spring 16 is connected to the connecting rod 15, and the other end is connected to the roller brush frame 2; wherein the center lines of the sway cylinder 14, the connecting rod 15, and the spring 16 are in the same plane.

[0032] In this embodiment, the hinge point between the hanger and the sway cylinder and the hinge point between the hanger and the roller brush frame can be considered as being connected by a rigid connecting rod, referred to as the first rigid rod; the hinge point between the hanger and the roller brush frame and the hinge point between the connecting rod and the roller brush frame can also be considered as being connected by a rigid connecting rod, referred to as the second rigid rod. The first rigid rod, the second rigid rod, the connecting rod, and the sway cylinder form a four-bar linkage. With the hanger position relatively stationary relative to the vehicle body, the four-bar linkage causes the roller brush assembly to swing at only one angle, thereby giving the roller brush rotation assembly inside the roller brush frame a certain tilt angle to conform to the surface to be cleaned. Due to the inherent characteristics of the four-bar linkage, it has a certain range of motion, allowing the roller brush frame to swing freely within a certain range to better adapt to the surface to be cleaned. At the same time, the spring prevents the roller brush assembly from swinging too much. Therefore, the roller brush device of this invention adaptively adjusts according to the unevenness of the panel to be cleaned, resulting in higher adjustment accuracy and sensitivity, and better cleaning effect compared to existing technologies.

[0033] Preferably, the connection between the spring 16 and the roller brush frame 2 further includes an adjusting rod 17, one end of which is connected to the spring 16, and the other end is hinged to the roller brush frame 2. In this embodiment, the adjusting rod is used to adjust the tension of the spring, making the spring more sensitive to the adjustment of the oscillation cylinder.

[0034] In one embodiment, reference Figure 2 and Figure 3A cover 4 is installed on the outside of the roller brush holder 2. A lower fixing plate 201 and an upper fixing plate 205 are respectively provided at both ends of the roller brush holder 2. The lower fixing plate and the upper fixing plate are welded and fixed to the roller brush holder 2. The roller brush rotating assembly 1 is installed between the lower fixing plate and the upper fixing plate and is located inside the roller brush holder. A hanger 9 is installed in the middle of the upper end of the roller brush holder. The hanger 9 is connected to the roller brush holder through a hanger hinge plate 202.

[0035] In a preferred embodiment, the long shaft 112 of the roller brush is arranged along the length of the roller brush frame and is a hollow shaft. Both ends are connected to a drive shaft 106 and a driven shaft 114 respectively via tensioning sleeves 111. Tensioning screws 110 are installed on the side of the tensioning sleeve near the drive and driven shafts, and the tension is controlled by tightening or loosening, allowing the hollow shaft to be detachably fixed to the two shafts. Preferably, the drive shaft 106 is connected to the output shaft of the rotary motor 101 via a mating key 105, and the driven shaft 114 is fixed to the upper fixing plate via a bearing with a mounting seat. A plurality of bristle assemblies 113 are detachably fitted onto the outer periphery of the long shaft 112 of the roller brush.

[0036] In a preferred embodiment, the inner hole of the bristle assembly 113 is non-circular and is provided with several elastic holes 206 to facilitate fitting onto the long shaft of the roller brush, and it cannot rotate on the outer periphery of the long shaft of the roller brush. The outer ring of the bristle assembly is planted with one or more rings of bristle bundles.

[0037] As a preferred embodiment, refer to Figure 4 Both the drive shaft 106 and the driven shaft 114 are equipped with grooved nuts 107 and pressure plates 109 for restricting the movement of the brush assembly. When the brush assembly is fitted onto the long shaft of the roller brush, rotating the grooved nuts on the drive shaft and the driven shaft causes the pressure plates to press against the brush assembly, thus easily securing the brush assembly. When the brush assembly needs to be replaced, the grooved nuts are loosened, and the pressure plates 109 are removed, allowing for easy removal of the brush assembly.

[0038] In this embodiment, the long shaft, drive shaft, and driven shaft of the roller brush are manufactured separately and connected and fixed by a tensioning sleeve. A tensioning screw is installed on the side of the tensioning sleeve near the drive and driven shafts, and the tension is controlled by tightening or loosening the screw, allowing the hollow shaft to be detachably fixed to the two shafts. When it is necessary to replace the brush on the roller, the tensioning screw is loosened, allowing the entire long shaft of the roller to be removed, thus facilitating device maintenance.

[0039] In a preferred embodiment, the end face of the pressure plate 109 is also provided with a locking washer 108, which is used in conjunction with the grooved nut 107 to further improve the tightening effect.

[0040] In a preferred embodiment, a motor mounting plate 102 is mounted on the lower fixed plate 201 via bolts and fasteners 3. A rotary motor 101 is fixed to the motor mounting plate 102 and extends out of the lower fixed plate 201. A drive shaft 106 is mounted on a seated bearing 104, and the inner bore of the drive shaft 106 is connected to the output end of the rotary motor 101 via a mating key 105. The seated bearing 104 is mounted on the inner side of the motor mounting plate 102 via bearing seat bolts 103. The driven shaft 114 is connected to the upper fixed plate via the seated bearing 104. Preferably, a seated spherical roller bearing is used, which allows for self-alignment at both ends, ensuring the coaxiality of the drive shaft and the driven shaft, resulting in smooth rotation.

[0041] In this invention, the roller brush rotary assembly is connected and fixed by lower and upper fixing plates on both sides of the roller brush frame. The detachable design allows the entire roller brush rotary assembly to be removed, greatly facilitating the installation and maintenance of large-size roller brushes. The materials of the long roller brush shaft and the drive and driven shafts can be different. The long roller brush shaft can be made of lightweight materials such as aluminum alloy, reducing the overall weight of the assembly. The drive and driven shafts, requiring higher strength, can be made of steel, increasing wear resistance and extending service life. Furthermore, the long roller brush shaft and the drive and driven shafts are installed in sections, avoiding the need to make them a single unit as in existing technologies. This also facilitates subsequent maintenance and reduces operating costs.

[0042] As a preferred embodiment, refer to Figure 1 and Figure 2 The water spraying mechanism includes a high-pressure pipeline and a low-pressure pipeline. The low-pressure pipeline is used to spray low-pressure water to wet and reduce dust, and the high-pressure pipeline is used to spray high-pressure water for rinsing.

[0043] Specifically, the high-pressure pipeline includes a first high-pressure water pipe 8 and a second high-pressure water pipe 11. The first high-pressure water pipe 8 and the second high-pressure water pipe 11 are installed on one side of the hanger 9 and are located on the outside of the housing 4. A ball valve 12 is provided between the first high-pressure water pipe 8 and the second high-pressure water pipe 11. Preferably, the ball valve is a three-way ball valve. The first high-pressure water pipe 8 and the second high-pressure water pipe 11 are located on both sides of the housing 4 and are respectively connected to the high-pressure spray bar 5. The low-pressure pipeline includes a first low-pressure water pipe 10 installed on the other side of the hanger 9. A ball valve 12 is also provided between the first low-pressure water pipe 10 and the second low-pressure water pipe 13. The first low-pressure water pipe 10 and the second low-pressure water pipe 13 are located on both sides of the cover 4 and are respectively connected to the low-pressure spray bar 6. The high-pressure spray bar 5 and the low-pressure spray bar 6 are installed on both sides of the roller brush frame 2 by U-bolts 18. The ball valve 12 is connected to the external water supply circuit. A high-pressure nozzle 19 is installed on the cleaning end face of the high-pressure spray bar 5, and a low-pressure nozzle 20 is installed on the cleaning end face of the low-pressure spray bar 6.

[0044] refer to Figure 2In a preferred embodiment, the high-pressure nozzle is positioned close to the brush holder, and the low-pressure nozzle is positioned away from the brush holder. The high-pressure nozzle is tilted toward the bristle assembly, and the low-pressure nozzle is tilted away from the bristle assembly.

[0045] In this invention, the water spraying mechanism uses a combination of high and low pressure water for rinsing, and employs two asynchronous switches to control a three-way ball valve. When moving forward, low-pressure water is sprayed from the front to wet and reduce dust, while high-pressure water is sprayed from the rear to rinse. Furthermore, the high-pressure nozzles are installed at an angle towards the brush assembly. Compared to existing cleaning methods, this method is more efficient, saves water, and significantly improves the cleaning effect.

[0046] In a preferred embodiment, two distance sensors 7 are respectively provided on both sides of the roller brush frame. The distance sensors are used to detect the distance between the roller brush and the cleaning surface and feed the feedback to the vehicle controller so that the sway cylinder (14) can make corresponding extension and retraction adjustments. On the one hand, the angle adjustment mechanism adjusts the swing angle of the roller brush in time to make dynamic adjustments (including lifting and obstacle avoidance protection or adjusting the optimal cleaning angle); on the other hand, if the cleaning vehicle encounters a sudden situation, causing the roller brush device to suddenly press against the panel to be cleaned (such as photovoltaic panels, glass panels and other fragile panels), the distance sensor sends a signal to the vehicle controller in time according to the preset distance threshold, so that the hanger can be lifted to avoid the obstacle.

[0047] This utility model also provides a photovoltaic module cleaning vehicle, which employs the roller brush device of this utility model. Due to the performance characteristics of the roller brush device, the photovoltaic module cleaning vehicle also possesses corresponding functions, which will not be elaborated further here. Although this is a cleaning vehicle specifically for photovoltaic modules, those skilled in the art will readily recognize from the background information of this application that the same method can be used for cleaning glass panels, heliostats, and other similar panels.

[0048] As one embodiment, reference Figure 6 This is a schematic diagram of the working part of a cleaning vehicle including the roller brush device of this utility model. The roller brush device is fixed to the telescopic crossbeam of the cleaning vehicle via a first hinge seat 312. A second hinge seat 313 is provided on the hanger 9. The first and second hinge seats are connected by two intersecting folding limiting rods (used to limit the left-right and forward-backward swing of the roller brush frame, not shown in the figure) and a tension spring 411. In this way, the entire roller brush device is suspended below the telescopic crossbeam. During operation, the roller brush device is placed on the surface to be cleaned by the lifting system of the cleaning vehicle. Compared with the existing method of using an excavator boom or other folding boom to connect and adjust the cleaning angle of the roller brush device, the adjustment method of this utility model is more sensitive and reliable.

[0049] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A roller brush device for cleaning vehicles, characterized in that: include, The roller brush frame (2) is provided with a hanger (9) for connecting external equipment in the middle part, a water spraying mechanism on both sides of the roller brush frame (2), and a cover (4) on the outside of the roller brush frame (2). The hanger (9) is hinged to the roller brush frame at both ends. An angle adjustment mechanism is set along the length of the roller brush frame (2), with one end connected to the hanger (9) and the other end connected to the roller brush frame (2); A roller brush rotary assembly (1) is installed inside the roller brush frame (2) and includes a rotary motor (101). The output end of the rotary motor (101) is connected to a roller brush long shaft (112), and a bristle assembly (113) is installed on the roller brush long shaft (112). The roller brush device is fixed to the telescopic crossbeam of the cleaning vehicle by the first hinge seat (312), and the second hinge seat (313) is provided on the hanger (9). The first hinge seat (312) and the second hinge seat (313) are connected by two intersecting folding limit rods and tension springs (411).

2. The vehicle cleaning roller brush device according to claim 1, characterized in that: The angle adjustment mechanism includes: a sway cylinder (14), a connecting rod (15), and a spring (16) connected in sequence; one end of the sway cylinder (14) is connected to the hanger (9), and the other end is hinged to the connecting rod (15), and the other end of the connecting rod (15) is hinged to the roller brush frame (2); one end of the spring (16) is connected to the connecting rod (15), and the other end is connected to the roller brush frame (2); wherein, the center lines of the sway cylinder (14), the connecting rod (15), and the spring (16) are in the same plane.

3. The vehicle cleaning roller brush device according to claim 2, characterized in that: It also includes an adjusting rod (17), one end of which is connected to the spring (16), and the other end is hinged to the roller brush holder (2).

4. The vehicle cleaning roller brush device according to claim 1, characterized in that: The long shaft (112) of the roller brush is a hollow shaft, and the two ends are connected to the drive shaft (106) and the driven shaft (114) respectively through the tension sleeve (111). Several bristle assemblies are detachably sleeved on the outer periphery of the long shaft of the roller brush.

5. The vehicle cleaning roller brush device according to claim 4, characterized in that: Both the drive shaft (106) and the driven shaft (114) are provided with a grooved nut (107) and a pressure plate (109) for limiting the movement of the bristle assembly.

6. The vehicle cleaning roller brush device according to claim 5, characterized in that: The roller brush holder (2) has a lower fixing plate (201) at one end away from the angle adjustment mechanism and an upper fixing plate (205) at the other end. The lower fixing plate (201) is equipped with a rotary motor mounting plate (102), and the rotary motor (101) is mounted on the motor mounting plate (102). The drive shaft (106) passes through a seated bearing (104) and is connected to the output end of the rotary motor (101). The driven shaft (114) is connected to the upper fixing plate (205) through the seated bearing (104).

7. The vehicle cleaning roller brush device according to claim 1, characterized in that: The inner hole of the bristle assembly is non-circular, and the outer periphery is provided with at least one ring of bristles.

8. The vehicle cleaning roller brush device according to claim 1, characterized in that: The water spraying mechanism includes a high-pressure pipeline and a low-pressure pipeline. The low-pressure pipeline is used to spray low-pressure water to wet and reduce dust, and the high-pressure pipeline is used to spray high-pressure water for rinsing.

9. The vehicle cleaning roller brush device according to claim 8, characterized in that: The high-pressure pipeline includes a first high-pressure water pipe (8) and a second high-pressure water pipe (11). The first high-pressure water pipe (8) and the second high-pressure water pipe (11) are installed on one side of the hanger (9) and are located on the outside of the cover (4). A ball valve (12) is provided between the first high-pressure water pipe (8) and the second high-pressure water pipe (11). The first high-pressure water pipe (8) and the second high-pressure water pipe (11) are located on both sides of the cover (4) and are respectively connected to high-pressure spray bars (5). The low-pressure pipeline includes a first low-pressure water pipe installed on the other side of the hanger (9). A high-pressure water pipe (10) and a second low-pressure water pipe (13) are provided. A ball valve (12) is also provided between the first low-pressure water pipe (10) and the second low-pressure water pipe (13). The first low-pressure water pipe (10) and the second low-pressure water pipe (13) are located on both sides of the cover (4) and connected to the low-pressure spray bar (6). The ball valve (12) is connected to the external water circuit. The high-pressure spray bar (5) is equipped with a high-pressure nozzle (19). The low-pressure spray bar (6) is equipped with a low-pressure nozzle (20). The high-pressure nozzle is inclined toward the direction of the brush assembly.

10. The vehicle cleaning roller brush device according to claim 1, characterized in that: The roller brush holder (2) is also equipped with a distance sensor (7), which is used to detect the distance between the roller brush and the cleaning surface and feed it back to the vehicle controller so that the sway cylinder (14) can make corresponding extension and retraction adjustment actions.

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