Self-cleaning photovoltaic module

Abstract

The utility model discloses a self-cleaning photovoltaic module. The self-cleaning photovoltaic module comprises a mounting frame for fixing a photovoltaic panel; the cleaning mechanism is located above the photovoltaic panel, one end of the cleaning mechanism is hinged to an angular point formed by connecting the two linear borders of the mounting frame, the cleaning mechanism can rotate around the hinged point to clean the upper surface of the photovoltaic panel, and the rotating track of the cleaning mechanism at least covers the upper surface of the photovoltaic panel; the driving mechanism is arranged on the mounting frame, located below the photovoltaic panel and used for driving the cleaning mechanism to rotate. The self-cleaning photovoltaic module provided by the utility model is provided with the cleaning mechanism and the driving mechanism, so that the photovoltaic panel is self-cleaned, and the light receiving efficiency of the photovoltaic panel is ensured. Meanwhile, the cleaning mechanism is arranged on the mounting frame, can incline along with the photovoltaic module, is not influenced by the inclination angle of the photovoltaic panel, and is always attached to the upper surface of the photovoltaic panel, so that the cleaning effect is good. In addition, one end of the cleaning mechanism is hinged to the mounting frame, the cleaning mechanism is driven by the driving mechanism to rotate around the hinge point to clean the photovoltaic panel, the mounting structure is simple, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic power generation, in particular to a self-cleaning photovoltaic component. Background Art

[0002] Photovoltaic generation system, referred to as photovoltaic, refers to a power generation system that uses the photovoltaic effect of photovoltaic cells to directly convert solar radiation energy into electrical energy.

[0003] As a core component of the photovoltaic power generation system, the light receiving efficiency of the photovoltaic module directly affects the power generation efficiency of the entire system. In order to fully absorb light energy, photovoltaic modules usually need to be exposed to the external environment. However, long-term use will cause a lot of dust to accumulate on the surface of the photovoltaic module. This dust will become moist under the action of moisture in the air, and then dry again to form dirt, which will firmly adhere to the surface of the photovoltaic panel. Since this dirt is difficult to be washed away by rainwater, the photovoltaic panel is blocked, resulting in its light receiving efficiency being affected, thereby reducing the power generation performance of the system.

[0004] At present, most photovoltaic panels are cleaned by operators using cleaning equipment. Since the angle of the photovoltaic panels needs to change with the angle of the sun, the cleaning head of the cleaning equipment is difficult to fit the surface of the photovoltaic panels during cleaning, resulting in incomplete cleaning of the photovoltaic panel surface. Utility Model Content

[0005] The utility model aims to provide a self-cleaning photovoltaic component, which can self-clean dirt attached to the surface and is not affected by the tilt angle of the photovoltaic panel, and has a good cleaning effect.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A self-cleaning photovoltaic module, comprising:

[0008] A mounting frame for fixing the photovoltaic panel;

[0009] A cleaning mechanism is located above the photovoltaic panel, one end of the cleaning mechanism is hinged to a corner point formed by connecting two straight frames of the mounting frame, and can rotate around the hinge point to clean the upper surface of the photovoltaic panel, and the rotation track of the cleaning mechanism at least covers the upper surface of the photovoltaic panel;

[0010] The driving mechanism is arranged on the installation frame and located below the photovoltaic panel, and is used for driving the cleaning mechanism to rotate.

[0011] In some embodiments, the length of the cleaning mechanism is adjustable.

[0012] In some embodiments, the cleaning mechanism includes an inner scraping unit and an outer scraping unit sleeved outside the inner scraping unit, and the inner scraping unit can move relative to the outer scraping unit in the axial direction under the action of the power member to extend or retract the outer scraping unit;

[0013] The outer scraping unit is in contact with the upper surface of the photovoltaic panel, and the inner scraping unit penetrates the outer scraping unit in a radial direction to be in contact with the upper surface of the photovoltaic panel.

[0014] In some embodiments, the installation frame includes a guide frame and a fixed frame connected to each other, the fixed frame includes two connected straight frame frames, and the top of the guide frame is higher than the top of the fixed frame;

[0015] One end of the cleaning mechanism is hinged on a corner point of the fixing frame, and the other end is in rolling contact with the inner side wall of the guiding frame.

[0016] In some embodiments, a roller is rotatably provided at the other end of the cleaning mechanism, and the cleaning mechanism is in rolling contact with the inner side wall of the guide frame through the roller.

[0017] In some embodiments, the power member is an elastic member, and both ends of the elastic member act on the outer scraping unit and the inner scraping unit respectively. The direction of the elastic force of the elastic member on the inner scraping unit is the axial direction of the inner scraping unit, and the elastic member applies a force to the inner scraping unit to extend out of the outer scraping unit.

[0018] In some embodiments, a top end of the external scraping unit is provided with a clearance groove along the axial direction, and a first matching block is provided at one end of the clearance groove in the axial direction;

[0019] The top end of the inner scraper unit is provided with a second matching block inserted into the giving way groove, and when the inner scraper unit is received in the outer scraper unit, the second matching block is located at an end of the inner scraper unit away from the first matching block;

[0020] The elastic member is connected between the first matching block and the second matching block, and the elastic member is continuously stretched.

[0021] In some embodiments, a protective shell is further provided on the external scraping unit, and the first matching block, the second matching block, and the elastic member are accommodated in the protective shell.

[0022] In some embodiments, a drain hole is hollowed out at a corner point of the guide frame in a horizontal direction, and a bottom surface of the drain hole is flush with an upper surface of the photovoltaic panel.

[0023] In some embodiments, the driving mechanism comprises:

[0024] A driving member, fixed to the bottom of the installation frame via a connecting seat;

[0025] A gear, sleeved on the driving shaft of the driving member;

[0026] The toothed disc is sleeved on a rotating shaft and meshed with the gear. The rotating shaft is passed through the installation frame and is used for hingedly connecting the installation frame and the cleaning mechanism.

[0027] Due to the application of the above technical solution, the beneficial effects of the present application compared with the prior art are:

[0028] 1. The cleaning mechanism and driving mechanism are set on the photovoltaic module to realize the self-cleaning of the photovoltaic panel, avoid dirt adhering to and blocking the photovoltaic panel, and ensure the light receiving efficiency of the photovoltaic panel;

[0029] 2. The cleaning mechanism of the photovoltaic module is set on the installation frame, which can be tilted along with the photovoltaic module, so that the cleaning mechanism is not affected by the tilt angle of the photovoltaic panel, and always fits with the upper surface of the photovoltaic panel, so the cleaning effect is good;

[0030] 3. One end of the cleaning mechanism of the photovoltaic module is hinged on the corner point formed by connecting two adjacent straight frames of the installation frame, and rotates around the hinge point under the drive of the driving mechanism to clean the photovoltaic panel. The overall installation structure is simple and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 This is a schematic diagram of the structure of a self-cleaning photovoltaic module in one embodiment of the utility model;

[0033] Figure 2 This is a structural schematic diagram of an external scraping unit in one embodiment of the utility model;

[0034] Figure 3 This is a structural schematic diagram of an inner scraping unit in one embodiment of the utility model;

[0035] Figure 4 It is a structural schematic diagram of an installation frame in one embodiment of the utility model.

[0036] Description of reference numerals:

[0037] 1-installation frame; 11-guide frame; 12-fixed frame; 2-cleaning mechanism; 21-external scraping unit; 211-outer outer shell; 212-external scraping strip; 213-through groove; 214-yield groove; 215-first matching block; 22-inner scraping unit; 221-slide rod; 222-inner scraping strip; 223-second matching block; 23-power member; 3-driving mechanism; 31-driving member; 32-gear; 33-toothed disc; 34-connecting seat; 4-photovoltaic panel; 5-roller; 6-protective shell; 7-drain hole; 8-rotating shaft; 9-limiting member. DETAILED DESCRIPTION

[0038] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0041] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0042] In addition, the terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] The self-cleaning photovoltaic module provided in this application can be applied to photovoltaic buildings, or used to provide power for street lights, signal lights, etc., or used to provide power for communication equipment. This application does not specifically limit the application scenarios of the self-cleaning photovoltaic module.

[0045] Figure 1 A schematic structural diagram of a self-cleaning photovoltaic module according to an embodiment of the present application is shown.

[0046] See also Figure 1 The self-cleaning photovoltaic assembly includes a mounting frame 1, a cleaning mechanism 2 and a driving mechanism 3. The mounting frame 1 is used to fix a photovoltaic panel 4. The cleaning mechanism 2 is arranged on the mounting frame 1 and located above the photovoltaic panel 4, and is used to clean the photovoltaic panel 4. The driving mechanism 3 is arranged on the mounting frame 1 and located below the photovoltaic panel 4, and is used to provide a driving force for the cleaning mechanism 2.

[0047] In one embodiment, one end of the cleaning mechanism 2 is hinged at a corner point formed by connecting two straight frames of the mounting frame 1, and can rotate around the hinge point to clean the photovoltaic panel 4. The rotation track of the cleaning mechanism 2 at least covers the upper surface of the photovoltaic panel 4.

[0048] It is worth noting that the cleaning mechanism 2 has an initial position, which is located above one of the two linear frames at the corner point where the hinge point is located. When not cleaning, the cleaning mechanism 2 is located above the linear frame where the initial position is located; when cleaning, the cleaning mechanism 2 rotates around the hinge point to move from the linear frame where the initial position is located toward the other linear frame; when cleaning is completed, the cleaning mechanism 2 is reset to the position above the linear frame where the initial position is located.

[0049] In one embodiment, in order to reduce the space occupied by the cleaning mechanism 2, the length of the cleaning mechanism 2 is set to be adjustable. In this way, the cleaning mechanism 2 can change its length in accordance with the shape of the photovoltaic panel 4 during the rotation process, and while ensuring that the entire upper surface of the photovoltaic panel 4 is cleaned, the cleaning mechanism 2 does not need to be set too long, which is convenient for the arrangement and use of multiple photovoltaic modules.

[0050] In detail, the cleaning mechanism 2 includes an inner scraping unit 22 and an outer scraping unit 21 sleeved outside the inner scraping unit 22. The inner scraping unit 22 can move relative to the outer scraping unit 21 in the axial direction under the action of the power member 23 to extend or retract the outer scraping unit 21. The outer scraping unit 21 is against the upper surface of the photovoltaic panel 4, and the inner scraping unit 22 penetrates the outer scraping unit 21 in the radial direction to be against the upper surface of the photovoltaic panel 4.

[0051] Please combine Figure 2 In one embodiment, the external scraping unit 21 includes an outer shell 211 and an outer scraping strip 212 arranged on one side of the outer shell 211 in the width direction, the bottom end of the outer scraping strip 212 contacts the upper surface of the photovoltaic panel 4, and a through groove 213 is opened axially at the bottom end of the outer shell 211.

[0052] Please combine Figure 3 In one embodiment, the inner scraping unit 22 includes a slide rod 221 and an inner scraping strip 222 arranged on the slide rod 221. The slide rod 221 is accommodated in the outer shell 211, and the inner scraping strip 222 extends out of the outer shell 211 through the through groove 213 to contact the upper surface of the photovoltaic panel 4.

[0053] The outer scraper strip 212 and the inner scraper strip 222 may be made of elastic material, such as wear-resistant rubber material, which is not specifically limited in the present application.

[0054] In one embodiment, in order to facilitate the subsequent replacement of the outer scraper strip 212 and the inner scraper strip 222, the outer scraper strip 212 and the outer shell 211 are detachably connected, and the inner scraper strip 222 and the slide bar 221 are detachably connected. Specifically, the outer scraper strip 212 and the outer shell 211, and the inner scraper strip 222 and the slide bar 221 are plug-connected and fixed by gluing, which is a conventional method.

[0055] In one embodiment, in order to facilitate the control of the length change of the cleaning mechanism 2, the length change of the cleaning mechanism 2 is guided by the remaining frames of the installation frame 1 except the two straight frames where the hinge points are located.

[0056] For details, please combine Figure 4 The installation frame 1 includes a guide frame 11 and a fixed frame 12 connected to each other, and the fixed frame 12 includes two connected straight frame frames. One end of the cleaning mechanism 2 is hinged at a corner point of the fixed frame 12. The present application does not specifically limit the shape of the installation frame 1. The installation frame 1 is described as a rectangular frame with four straight frame frames. That is, the above-mentioned guide frame 11 also includes two connected straight frame frames, and the guide frame 11 and the fixed frame 12 are in an "L"-shaped structure with the same shape and size.

[0057] In one embodiment, the top of the guide frame 11 is higher than the top of the fixed frame 12. The other end of the cleaning mechanism 2 is in rolling contact with the inner wall of the guide frame 11. This guides the length change of the cleaning mechanism 2 and reduces the friction between the cleaning mechanism 2 and the guide frame 11. Herein, the outer scraping unit 21 is hinged at the corner of the fixed frame 12, and the inner scraping unit 22 is in rolling contact with the inner wall of the guide frame 12 as an example for explanation.

[0058] In an optional embodiment, a roller 5 is rotatably provided at the end of the inner scraping unit 22, and the cleaning mechanism 2 is in rolling contact with the inner side wall of the guide frame 11 through the roller 5. Figure 3 shown.

[0059] In another optional embodiment, a rolling groove is provided at the end of the inner scraping unit 22, and a ball is movably embedded in the rolling groove, and the cleaning mechanism 2 is in rolling contact with the inner side wall of the guide frame 11 through the ball.

[0060] In yet another optional embodiment, a roller is rotatably provided at the end of the inner scraping unit 22 , and the cleaning mechanism 2 is in rolling contact with the inner side wall of the guide frame 11 via the roller.

[0061] In one embodiment, the power member 23 for driving the inner scraping unit 22 to extend or retract into the outer scraping unit 21 is an elastic member, and the two ends of the elastic member act on the outer scraping unit 21 and the inner scraping unit 22 respectively. The direction of the elastic force of the elastic member on the inner scraping unit 22 is the axial direction of the inner scraping unit 22, and the inner scraping unit 22 is exerted with a force to extend out of the outer scraping unit 21.

[0062] In one embodiment, a clearance groove 214 is provided at the top of the outer scraping unit 21 in the axial direction, and a first matching block 215 is provided at one end of the clearance groove 214 in the axial direction. A second matching block 223 is provided at the top of the inner scraping unit 22 to be inserted into the clearance groove 214. When the inner scraping unit 22 is received in the outer scraping unit 21, the second matching block 223 is located at one end of the inner scraping unit 22 away from the first matching block 215. An elastic member is connected between the first matching block 215 and the second matching block 223, and the elastic member is continuously stretched. The elastic member is specifically a tension spring.

[0063] In one embodiment, a protective shell 6 is further provided on the external scraping unit 21, and the first matching block 215, the second matching block 223, and the elastic member are accommodated in the protective shell 6 to reduce the oxidation rate of the elastic member and increase the service life.

[0064] It is worth noting that in order to improve the photoelectric conversion efficiency of the photovoltaic module, the photovoltaic panel 4 needs to be kept perpendicular to the sunlight, so the photovoltaic module is usually set at an angle.

[0065] In order to facilitate the discharge of dirt on the surface of the photovoltaic panel 4, in one embodiment, a drainage hole 7 is hollowed out in the horizontal direction at the corner point of the guide frame 11, and the bottom surface of the drainage hole 7 is flush with the upper surface of the photovoltaic panel 4. That is, in the horizontal direction, the height of the guide frame 11 is lower than the height of the fixing frame 12, so that the photovoltaic module is tilted upward from the corner point of the guide frame 11 to the corner point of the fixing frame 12, forming a height difference, and the dirt can be scraped off by the cleaning mechanism 2 and discharged from the drainage port.

[0066] In one embodiment, the driving mechanism 3 includes a driving member 31, a gear 32 and a toothed disc 33. The driving member 31 is fixed to the bottom of the mounting frame 1 through a connecting seat 34. The gear 32 is sleeved on a driving shaft (not shown) of the driving member 31. The toothed disc 33 is sleeved on a rotating shaft 8 and meshes with the gear 32. The rotating shaft 8 is penetrated in the mounting frame 1 and is used to hinge the mounting frame 1 and the cleaning mechanism 2. The driving member 31 can be a progressive motor, which is a conventional structure.

[0067] As described above, the toothed disc 33 is sleeved on the rotating shaft 8 for hingedly connecting the mounting frame 1 and the cleaning mechanism 2, and the cleaning mechanism 2 is hinged at the corner point formed by connecting two straight frames of the mounting frame 1, so that part of the toothed disc 33 extends out of the mounting frame 1, occupying a large space. At the same time, it can be known from the above that after cleaning is completed, the cleaning mechanism 2 is reset to the upper part of the straight frame where the initial position is located.

[0068] In order to reduce the space occupied by the driving mechanism 3 and facilitate the resetting of the cleaning mechanism 2, in one embodiment, the toothed disc 33 of the driving mechanism 3 is a sector-shaped toothed disc 33. The sector angle of the toothed disc 33 is the same as the angle of the corner point where the rotating shaft 8 is located, and the two straight edges of the toothed disc 33 coincide with the two straight frames of the corner point where the rotating shaft 8 is located.

[0069] At the same time, the photovoltaic assembly is also provided with a limiter 9 for limiting the rotation angle of the toothed disc 33. The limiter 9 is arranged on the mounting frame 1 and is located below the photovoltaic panel 4. The limiter 9 and the driving member 31 are respectively arranged on two straight line frames at the corner points where the rotating shaft 8 is located, and the limiter 9 is located on the straight line frame where the initial position is located. The limiter 9 can specifically be a block arranged on the straight line frame where the initial position is located. This application does not limit this.

[0070] It should be noted that the self-cleaning photovoltaic assembly of the present application can utilize rainy days to clean the photovoltaic panel 4 while the rainwater washes the surface of the photovoltaic panel 4, or spray water on the surface of the photovoltaic panel 4 through a water spraying device to clean it.

[0071] Specifically, the photovoltaic module can be provided with a detection member (not shown), which is connected to the driving mechanism 3 by signal. The detection member is used to detect whether it is raining. When rain is detected, a signal is sent to trigger the driving mechanism 3, and the driving mechanism 3 drives the cleaning mechanism 2 to clean the surface of the photovoltaic panel 4; or the driving mechanism 3 is connected to the remote control end (not shown) by signal, and the driving mechanism 3 is started or stopped by manual control; or the detection member is connected to the driving mechanism 3 by signal, and the driving mechanism 3 is connected to the remote control end by signal, that is, the cleaning can be automatic or manually controlled. The detection member can be specifically a rainfall sensor for detecting the amount of rain; or a humidity sensor for detecting the humidity level in the environment. It is a conventional structure.

[0072] Finally, it should be noted that the above are only preferred embodiments of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A self-cleaning photovoltaic module, characterized in that: include: A mounting frame for fixing the photovoltaic panel; A cleaning mechanism is located above the photovoltaic panel, one end of the cleaning mechanism is hinged to a corner point formed by connecting two straight frames of the mounting frame, and can rotate around the hinge point to clean the upper surface of the photovoltaic panel, and the rotation track of the cleaning mechanism at least covers the upper surface of the photovoltaic panel; The driving mechanism is arranged on the installation frame and located below the photovoltaic panel, and is used for driving the cleaning mechanism to rotate.

2. The self-cleaning photovoltaic module according to claim 1, characterized in that: The length of the cleaning mechanism is adjustable.

3. The self-cleaning photovoltaic module according to claim 2, characterized in that: The cleaning mechanism comprises an inner scraping unit and an outer scraping unit sleeved outside the inner scraping unit, wherein the inner scraping unit can move relative to the outer scraping unit in the axial direction under the action of the power member to extend out of or retract into the outer scraping unit; The outer scraping unit is in contact with the upper surface of the photovoltaic panel, and the inner scraping unit penetrates the outer scraping unit in a radial direction to be in contact with the upper surface of the photovoltaic panel.

4. The self-cleaning photovoltaic module according to claim 3, characterized in that: The installation frame includes a guide frame and a fixed frame connected to each other, the fixed frame includes two connected straight frame frames, and the top of the guide frame is higher than the top of the fixed frame; One end of the cleaning mechanism is hinged on a corner point of the fixing frame, and the other end is in rolling contact with the inner side wall of the guiding frame.

5. The self-cleaning photovoltaic module according to claim 4, characterized in that: A roller is rotatably provided at the other end of the cleaning mechanism, and the cleaning mechanism is in rolling contact with the inner side wall of the guide frame through the roller.

6. The self-cleaning photovoltaic module according to claim 4, characterized in that: The power member is an elastic member, and both ends of the elastic member act on the outer scraping unit and the inner scraping unit respectively. The direction of the elastic force of the elastic member on the inner scraping unit is the axial direction of the inner scraping unit, and the elastic member applies a force to the inner scraping unit to extend out of the outer scraping unit.

7. The self-cleaning photovoltaic module according to claim 6, characterized in that: The top end of the outer scraping unit is provided with a clearance groove along the axial direction, and the clearance groove is provided with a first matching block at one end in the axial direction; The top end of the inner scraper unit is provided with a second matching block inserted into the giving way groove, and when the inner scraper unit is received in the outer scraper unit, the second matching block is located at an end of the inner scraper unit away from the first matching block; The elastic member is connected between the first matching block and the second matching block, and the elastic member is continuously stretched.

8. The self-cleaning photovoltaic module according to claim 7, characterized in that: The outer scraping unit is also provided with a protective shell, and the first matching block, the second matching block and the elastic member are accommodated in the protective shell.

9. The self-cleaning photovoltaic module according to claim 4, characterized in that: A drainage hole is hollowed out in the horizontal direction at the corner point of the guide frame, and the bottom surface of the drainage hole is flush with the upper surface of the photovoltaic panel.

10. The self-cleaning photovoltaic module according to claim 1, characterized in that: The driving mechanism comprises: A driving member, fixed to the bottom of the installation frame via a connecting seat; A gear, sleeved on the driving shaft of the driving member; The toothed disc is sleeved on a rotating shaft and meshed with the gear. The rotating shaft is passed through the installation frame and is used for hingedly connecting the installation frame and the cleaning mechanism.

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