Rolling brush height adjustment mechanism suitable for photovoltaic panel cleaning robot and cleaning robot

Abstract

The utility model discloses a kind of height-adjusting mechanism of roller brush suitable for photovoltaic panel cleaning robot and cleaning robot, photovoltaic panel cleaning robot includes the robot body and roller brush component connected by height-adjusting mechanism of roller brush, height-adjusting mechanism of roller brush includes roller brush support frame, first support column and second support column, roller brush support frame is connected with roller brush component, first support column and second support column are set on robot body;First adjusting hole and second adjusting hole are provided on roller brush support frame, first adjusting hole is set in the position close to roller brush component compared with second adjusting hole;First adjusting hole is matched with first support column, second adjusting hole is connected with second support column cooperation, and roller brush support frame is rotatably connected with second support column.The height-adjusting mechanism of roller brush provided by the utility model can realize coarse adjustment and fine adjustment of roller brush height, to meet various different use scenes, and can always maintain good cleaning effect in various use scenes.

Description

Technical Field

[0001] This utility model relates to the fields of intelligent robots and photovoltaic technology, and in particular to a roller brush height adjustment mechanism and a cleaning robot suitable for photovoltaic panel cleaning robots. Background Technology

[0002] As the global energy structure accelerates its shift towards renewable energy, the capacity of individual photovoltaic (PV) power plants has rapidly increased from megawatts to hundreds of megawatts. This has amplified the impact of accumulated dust, bird droppings, industrial debris, and salt spray on the surface of PV panels on power generation efficiency. In typical high-irradiance, high-dust areas, dust accumulation on PV panels can lead to a power degradation of over 15% in just two weeks. If mud belts form during the rainy season, localized hot spot effects can cause annual power generation losses of up to 25% or more, and accelerate backsheet yellowing, cell microcracks, and shorten module lifespan by 3–5 years.

[0003] Traditional manual water washing or vehicle-mounted spraying methods are restricted by policy in areas with scarce water resources, and also suffer from drawbacks such as short cleaning windows, high labor costs, easy trampling of panels, and insufficient uniformity. While fixed spraying systems can partially replace manual labor, problems such as pipe freezing and cracking in winter, nozzle clogging, blind spots in rinsing, and chemical cleaning agent residue remain unresolved. To improve upon these shortcomings of traditional photovoltaic panel cleaning methods, photovoltaic panel cleaning robots have emerged.

[0004] Photovoltaic panel cleaning robots typically clean the glass panel surface by continuously rubbing it with rotating brushes. Since photovoltaic panels have aluminum alloy frames and require metal pressure plates for fixation, the entire cleaning process for photovoltaic panels is not completely flat, but rather involves many protrusions.

[0005] When the cleaning robot's wheels pass over these protrusions, the machine and the roller brush move up and down together. This can lead to inconsistent cleaning performance of the fixed-height roller brush mechanism, and may result in missed areas. Furthermore, the duration of use and the environment in which the photovoltaic panels are located can cause varying degrees of dirt on the panel surface. Therefore, existing fixed-height roller brushes are not suitable for different scenarios.

[0006] The above background information is provided only to assist in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this application, nor does it necessarily provide technical guidance. In the absence of clear evidence that the above information was disclosed before the filing date of this application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0007] The purpose of this invention is to provide a roller brush height adjustment mechanism and a cleaning robot suitable for photovoltaic panel cleaning robots. This mechanism enables coarse and fine adjustments to the roller brush height, thereby meeting various usage scenarios and maintaining good cleaning performance in all scenarios.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0009] A roller brush height adjustment mechanism is provided for a photovoltaic panel cleaning robot. The photovoltaic panel cleaning robot includes a robot body and a roller brush component connected by the roller brush height adjustment mechanism. The roller brush height adjustment mechanism includes a roller brush support frame, a first support column and a second support column. The roller brush support frame is connected to the roller brush component. The first support column and the second support column are disposed on the robot body.

[0010] The roller brush support frame is provided with a first adjustment hole and a second adjustment hole, and the first adjustment hole is located closer to the roller brush component than the second adjustment hole;

[0011] The first adjustment hole engages with the first support column, the second adjustment hole engages with the second support column, and the roller brush support frame is rotatably connected to the second support column.

[0012] Furthermore, based on any one or a combination of the aforementioned technical solutions, the first adjustment hole is an arc-shaped hole with an opening structure, and the opening direction of the opening structure of the first adjustment hole is downward.

[0013] Furthermore, based on any or a combination of the aforementioned technical solutions, the roller brush height adjustment mechanism further includes a roller brush mounting bracket and an adjusting screw, wherein the roller brush mounting bracket is connected to the roller brush component;

[0014] The roller brush mounting bracket and the roller brush support bracket are connected by the adjusting screw, which is configured to adjust the vertical relative positions of the roller brush mounting bracket and the roller brush support bracket.

[0015] Furthermore, based on any or a combination of the aforementioned technical solutions, the roller brush mounting bracket includes a first side and a second side that are interconnected, wherein the first side is connected to the roller brush component by fasteners.

[0016] The second side includes a guide rail groove arranged in a vertical direction, and the upper and lower ends of the guide rail groove are provided with first through holes, through which the adjusting screw passes;

[0017] One end of the roller brush support frame is disposed in the guide rail groove, and the end of the roller brush support frame disposed in the guide rail groove is provided with a threaded hole, which is threadedly connected to the adjusting screw.

[0018] Furthermore, following any one or a combination of the aforementioned technical solutions, the first side portion has a C-shaped structure, with mounting holes provided at both the upper and lower ends of the C-shaped structure, and the first side portion is fixedly connected to the roller brush component by fasteners passing through the mounting holes.

[0019] Furthermore, based on any or a combination of the aforementioned technical solutions, the adjusting screw includes an adjusting knob, a screw, and a limiting part, wherein the adjusting knob and the limiting part are disposed at both ends of the screw, and the screw passes through the second side portion.

[0020] Furthermore, following any one or a combination of the aforementioned technical solutions, the centerlines of the first support column and the second support column are located at the same horizontal height, and the centers of the first adjustment hole and the second adjustment hole are also located at the same horizontal height.

[0021] Furthermore, in accordance with any or a combination of the aforementioned technical solutions, the second adjustment hole is also an arc-shaped hole with an opening structure, and the opening direction of the second adjustment hole is horizontal and away from the direction of the roller brush component.

[0022] Furthermore, based on any one or a combination of the aforementioned technical solutions, there are multiple roller brush height adjustment mechanisms corresponding to one roller brush component, and these multiple roller brush height adjustment mechanisms are distributed at a certain interval along the length direction of the roller brush component.

[0023] Furthermore, following any one or a combination of the aforementioned technical solutions, each of the roller brush components is provided with two roller brush height adjustment mechanisms, the two roller brush height adjustment mechanisms are symmetrically arranged along a virtual center line, and the distances from both sides of the roller brush component to the center line in the length direction are equal.

[0024] According to another aspect of the present invention, a cleaning robot is provided, comprising a robot body, a roller brush component, and a roller brush height adjustment mechanism for a photovoltaic panel cleaning robot as described in any one or a combination of the above technical solutions, wherein the robot body and the roller brush component are connected through the roller brush height adjustment mechanism.

[0025] The beneficial effects of the technical solution provided by this utility model are as follows:

[0026] a. The roller brush height adjustment mechanism for photovoltaic panel cleaning robots provided by this utility model uses a roller brush support frame to drive the roller brush with the first support column as the rotation axis and the second support column as the lowest support axis. Under the action of the roller brush component's own weight, the brush bristles are kept in contact and compressed with the photovoltaic panel. The roller brush component can adaptively adjust with the concavity and convexity of the photovoltaic panel surface, so as to always maintain a good cleaning effect and achieve maximum cleaning efficiency.

[0027] b. The roller brush height adjustment mechanism provided by this utility model not only includes a roller brush component height fine adjustment mechanism composed of a roller brush support frame, a first support column and a second support column, but also includes a roller brush component height wide range adjustment mechanism composed of a roller brush mounting frame, an adjusting screw and a roller brush support frame. For different usage scenarios, the roller brush height can be coarsely adjusted first and then finely adjusted using the fine adjustment mechanism, which can meet more usage scenarios.

[0028] c. The roller brush height adjustment mechanism provided by this utility model has a simple structure and low cost. Attached Figure Description

[0029] 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 will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 A three-dimensional structural diagram of a photovoltaic panel cleaning robot equipped with a roller brush height adjustment mechanism, provided as an exemplary embodiment of the present invention;

[0031] Figure 2 for Figure 1 A magnified view of a portion of point A in the diagram;

[0032] Figure 3 An exploded view of a brush height adjustment mechanism provided as an exemplary embodiment of the present invention;

[0033] Figure 4 A three-dimensional structural diagram of a roller brush support frame provided for an exemplary embodiment of the present invention;

[0034] Figure 5 A first-angle perspective view of a roller brush mounting bracket provided as an exemplary embodiment of the present invention;

[0035] Figure 6 A second-angle perspective view of a roller brush mounting bracket provided as an exemplary embodiment of the present invention;

[0036] Figure 7A perspective view of the second angle of the adjusting screw provided as an exemplary embodiment of the present invention;

[0037] Figure 8 A schematic diagram showing the roller brush component adjusted to its lowest height, provided as an exemplary embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram showing the roller brush component adjusted to its highest height, as provided in an exemplary embodiment of the present invention.

[0039] The reference numerals in the attached drawings include: 1-roller brush component, 2-roller brush mounting bracket, 21-first side, 211-mounting hole, 22-second side, 221-guide rail groove, 222-first through hole, 3-adjusting screw, 31-adjusting knob, 32-screw, 33-limiting part, 4-roller brush support frame, 41-first adjusting hole, 42-second adjusting hole, 43-threaded hole, 51-first support column, 52-second support column, 6-robot body. Detailed Implementation

[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0041] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, apparatus, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0042] In one embodiment of this utility model, a roller brush height adjustment mechanism suitable for photovoltaic panel cleaning robots is provided, see [link to relevant documentation]. Figures 1 to 8As shown, the photovoltaic panel cleaning robot includes a robot body 6 and a roller brush component 1 connected by a roller brush height adjustment mechanism. The roller brush height adjustment mechanism includes a first adjustment mechanism and a second adjustment mechanism. The first adjustment mechanism is used to adaptively fine-tune the height of the roller brush component, controlling the roller brush component to follow the surface concavity and convexity of the photovoltaic panel to adaptively fine-tune the roller brush height so as to always keep the roller brush bristles in close contact with the photovoltaic panel and maintain a good cleaning effect. The second adjustment mechanism is used to coarsely adjust the height of the roller brush component, adjusting the height of the roller brush component within a large range to meet different usage scenarios.

[0043] like Figure 2 , Figure 3 As shown, the first adjustment mechanism includes a brush support frame 4, a first support column 51, and a second support column 52. The brush support frame 4 is connected to the brush component 1, and the first support column 51 and the second support column 52 are mounted on the robot body 6. The brush support frame 4 is provided with a first adjustment hole 41 and a second adjustment hole 42, with the second adjustment hole 42 located further away from the brush component 1 than the first adjustment hole 41. The first adjustment hole 41 engages with the first support column 51, and the second adjustment hole 42 engages with the second support column 52. The brush support frame 4 is rotatably connected to the second support column 52, allowing the end of the brush support frame 4 with the second adjustment hole 42 to rotate around the second support column 52, thereby moving the brush component up and down. Figure 4 As shown, the roller brush support frame 4 serves as a support frame for the roller brush component, and it is preferably a thicker metal plate to reduce and ensure rigidity. Limiting elements are provided at the outer ends of the first support column 51 and the second support column 52 to prevent the roller brush support frame from detaching from the two support columns.

[0044] Preferably, the centerlines of the first support column 51 and the second support column 52 are at the same horizontal height, and the centers of the first adjustment hole 41 and the second adjustment hole 42 are also at the same horizontal height. The first adjustment hole 41 is an arc-shaped hole with an opening structure, and the opening direction of the first adjustment hole 41 is downward. For ease of assembly, the second adjustment hole 42 is also an arc-shaped hole with an opening structure, and the opening direction of the second adjustment hole 42 is horizontal and away from the direction of the roller brush component 1, i.e., a half-hole structure with an opening facing the second support column 52. Thus, during assembly, it is only necessary to first insert the second support column 52 into the second adjustment hole 42, and then rotate the roller brush support frame 4 to allow the first support column 51 to enter the first adjustment hole 41. By cooperating with the first adjustment hole 41 and the first support column 51, and with the second adjustment hole 42 and the second support column 52, the roller brush component 1 of the cleaning robot can be freely lifted. For example, when the cleaning robot is moving, the roller brush component 1 rolls over an obstacle or moves to a rising surface. At this time, the front end of the roller brush component 1 (the end away from the robot body 6) is subjected to an upward lifting force. Based on the lever action with the second support column 52 as the fulcrum, the first adjustment hole 41 of the roller brush support frame 4 is lifted upward relative to the second adjustment hole 42 and disengages from the first support column 51. When the cleaning robot returns to the plane, the roller brush support frame 4 returns to the initial position and continues to be supported by the first support column 51 and the second support column 52.

[0045] like Figure 2 , Figure 3 As shown, the second adjustment mechanism includes a roller brush mounting bracket 2, an adjustment screw 3, and a roller brush support bracket 4. One side of the roller brush mounting bracket 2 is connected to the roller brush component 1; the other side of the roller brush mounting bracket 2 and the roller brush support bracket 4 are connected through the adjustment screw 3. The adjustment screw 3 is configured to adjust the vertical relative position of the roller brush mounting bracket 2 and the roller brush support bracket 4.

[0046] The roller brush mounting bracket 2 includes a first side 21 and a second side 22 that are connected to each other. The first side 21 is connected to the roller brush component 1 by fasteners. Figure 5 , Figure 6 As shown, the first side portion 21 has a C-shaped structure, and mounting holes 211 are provided at both the upper and lower ends of the C-shaped structure. The first side portion 21 is fixedly connected to the roller brush component 1 by fasteners passing through the mounting holes 211. Specifically, the C-shaped structure partially encircles the upper and lower sides of the crossbeam of the roller brush component 1, and the upper and lower sides of the C-shaped structure are respectively tightened and fixed to the roller brush component 1 by two screws. Preferably, the side of the C-shaped structure is flat.

[0047] like Figure 5As shown, the second side portion 22 includes a guide rail groove 221 arranged / extending in a vertical direction. Both the upper and lower ends of the guide rail groove are provided with first through holes 222, and the adjusting screw 3 passes through both the upper and lower first through holes 222. The roller brush support frame 4 includes a threaded hole 43. The end of the roller brush support frame 4 with the threaded hole 43 is disposed within the guide rail groove 221, and the threaded hole 43 is threadedly connected to the adjusting screw 3.

[0048] like Figure 7 As shown, the adjusting screw 3 includes an adjusting knob 31, a screw 32, and a limiting part 33. The adjusting knob 31 and the limiting part 33 are located at both ends of the screw 32, which passes through the second side portion 22. Preferably, the adjusting knob 31 is located at the upper part of the screw 32 so that the height of the roller brush can be adjusted by turning the adjusting knob. The limiting part 33 is located at the lower end of the screw 32, and the adjusting knob 31 and the limiting part 33 are located on the outer sides of the upper and lower ends of the second side portion 22. Specifically, the connection between the adjusting knob 31 and the screw 32 can optionally be a threaded connection, a pin connection, a welded connection, etc., or the adjusting knob 31 and the screw 32 can also be integrally formed. The connection between the limiting part 33 and the screw 32 can also optionally be a threaded connection, a pin connection, or an interference fit connection. For example, the limiting part 33 can be a non-slip nut.

[0049] Rotating the adjustment knob will cause the roller brush support frame and the roller brush mounting frame to move relative to each other. The roller brush support frame is rigidly connected to the entire roller brush component, thereby forming the entire roller brush mechanism to move up and down relative to the vehicle. Figure 8 This is a diagram showing the roller brush component adjusted to its lowest height. Figure 9 This is a diagram showing the roller brush component adjusted to its highest height.

[0050] In this embodiment, the photovoltaic panel cleaning robot is provided with roller brush components 1 on both sides. Each roller brush component 1 is provided with two roller brush height adjustment mechanisms. The two roller brush height adjustment mechanisms are symmetrically arranged along the center line of the roller brush component 1. The distance from the two sides of the roller brush component 1 to the center line in the length direction is equal, which can better support the roller brush component.

[0051] In one embodiment of this utility model, a cleaning robot is provided, such as Figures 1 to 3As shown, it includes a robot body 6, a roller brush component 1, and a roller brush height adjustment mechanism for a photovoltaic panel cleaning robot as described in any or a combination of the above embodiments. The robot body 6 and the roller brush component 1 are connected by the roller brush height adjustment mechanism, which is configured to adjust the height of the roller brush component, including coarse adjustment and adaptive fine adjustment, to suit different usage scenarios and to always maintain a good cleaning effect.

[0052] It should be noted that the above-described cleaning robot embodiment and the roller brush height adjustment mechanism embodiment are based on the same concept. By reference, all the contents of the roller brush height adjustment mechanism embodiment are incorporated into the cleaning robot embodiment.

[0053] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0054] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A roller brush height adjustment mechanism for a photovoltaic panel cleaning robot, the photovoltaic panel cleaning robot comprising a robot body (6) and a roller brush component (1) connected by the roller brush height adjustment mechanism, characterized in that, The roller brush height adjustment mechanism includes a roller brush support frame (4), a first support column (51) and a second support column (52). The roller brush support frame (4) is connected to the roller brush component (1), and the first support column (51) and the second support column (52) are mounted on the robot body (6). The roller brush support frame (4) is provided with a first adjustment hole (41) and a second adjustment hole (42), and the first adjustment hole (41) is located closer to the roller brush component (1) than the second adjustment hole (42); The first adjustment hole (41) cooperates with the first support column (51), the second adjustment hole (42) cooperates with the second support column (52), and the roller brush support frame (4) is rotatably connected to the second support column (52).

2. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 1, characterized in that, The first adjustment hole (41) is an arc-shaped hole with an opening structure, and the opening direction of the opening structure of the first adjustment hole (41) is downward.

3. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 1, characterized in that, The roller brush height adjustment mechanism includes a roller brush mounting bracket (2) and an adjusting screw (3), wherein the roller brush mounting bracket (2) is connected to the roller brush component (1); The roller brush mounting bracket (2) and the roller brush support bracket (4) are connected by the adjusting screw (3), which is configured to adjust the vertical relative position of the roller brush mounting bracket (2) and the roller brush support bracket (4).

4. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 3, characterized in that, The roller brush mounting bracket (2) includes a first side (21) and a second side (22) connected to each other, wherein the first side (21) is connected to the roller brush component (1) by fasteners; The second side (22) includes a guide rail groove (221) arranged in a vertical direction, and the upper and lower ends of the guide rail groove are provided with first through holes (222), and the adjusting screw (3) passes through the first through holes (222); One end of the roller brush support frame (4) is disposed in the guide rail groove (221), and the end of the roller brush support frame (4) disposed in the guide rail groove (221) is provided with a threaded hole (43), and the threaded hole (43) is threadedly connected to the adjusting screw (3).

5. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 4, characterized in that, The first side (21) has a C-shaped structure, and mounting holes (211) are provided at the upper and lower ends of the C-shaped structure. The first side (21) is fixedly connected to the roller brush component (1) by fasteners passing through the mounting holes (211).

6. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 4, characterized in that, The adjusting screw (3) includes an adjusting knob (31), a screw (32) and a limiting part (33). The adjusting knob (31) and the limiting part (33) are disposed at both ends of the screw (32), and the screw (32) passes through the second side part (22).

7. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 1, characterized in that, The second adjustment hole (42) is also an arc-shaped hole with an opening structure, and the opening direction of the second adjustment hole (42) is horizontal and away from the direction of the roller brush component (1).

8. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 1, characterized in that, There are multiple roller brush height adjustment mechanisms corresponding to one roller brush component (1), and the multiple roller brush height adjustment mechanisms are distributed at a certain interval along the length direction of the roller brush component (1).

9. The roller brush height adjustment mechanism for a photovoltaic panel cleaning robot according to claim 8, characterized in that, Each of the roller brush components (1) is provided with two roller brush height adjustment mechanisms. The two roller brush height adjustment mechanisms are symmetrically arranged along a virtual center line. The distances from the two sides of the roller brush component (1) to the center line in the length direction are equal.

10. A cleaning robot, characterized in that, The system includes a robot body, a roller brush component, and a roller brush height adjustment mechanism as described in any one of claims 1-9, wherein the robot body and the roller brush component are connected via the roller brush height adjustment mechanism.

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