Base station and cleaning system

Abstract

The utility model relates to a base station and a cleaning system. The base station comprises a base, and the base is provided with a cleaning groove. The cleaning part is arranged on the bottom surface of the cleaning groove, and the cleaning part is configured to clean a rag disc and a side brush of the cleaning equipment. According to the base station, the cleaning part is arranged on the bottom face of the cleaning groove of the base, the cleaning part can be used for cleaning the cleaning cloth disc and the side brush of the cleaning equipment, and therefore the problem that the cleaning effect and the service life are affected due to the fact that dirt is left on the cleaning cloth disc and the side brush for a long time can be avoided to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cleaning electrical appliances, in particular to a base station and cleaning system. BACKGROUND

[0002] In the related art, the sweeping robot has a side brush assembly and a cloth tray, the side brush assembly can realize the sweeping function, and the cloth tray can realize the mopping function. In the use process of the sweeping robot, the sweeping robot can return to the base station to perform charging, cloth tray cleaning and other operations. However, the side brush assembly of the sweeping robot cannot be cleaned for a long time, which causes these components to accumulate dirt for a long time, thereby affecting the cleaning effect and service life. SUMMARY

[0003] The utility model embodiment provides a kind of base station and cleaning system to solve at least one technical problem existing above.

[0004] The utility model embodiment provides a kind of base station, comprising:

[0005] Base, the base is equipped with cleaning groove;

[0006] Cleaning part, the cleaning part is equipped on the bottom surface of the cleaning groove, and the cleaning part is configured to clean the cloth tray and side brush of cleaning equipment.

[0007] In the above base station, the bottom surface of the cleaning groove of the base is equipped with cleaning part, the cloth tray and side brush of cleaning equipment can be cleaned using the cleaning part, so that the problem that dirt is accumulated in the cloth tray and side brush for a long time to affect the cleaning effect and service life can be avoided to a certain extent.

[0008] In some embodiments, the cleaning part includes a scraping strip and / or a comb tooth part, and the scraping strip and / or the comb tooth part is configured to clean the cloth tray and / or the side brush.

[0009] In the above base station, dirt and sundries on the cloth tray and side brush can be effectively cleaned.

[0010] In some embodiments, a plurality of scraping strips are arranged in the cleaning groove, and the plurality of scraping strips are arranged along the circumferential direction of the cleaning groove, and at least one comb tooth part is arranged between the adjacent two scraping strips.

[0011] In the above base station, the dirt removed can be collected into the cleaning groove.

[0012] In some embodiments, the length direction of the comb tooth part is radially distributed close to the center position of the cleaning groove, and the position of one end of the comb tooth part close to the cleaning groove is higher than the position of the other end away from the cleaning groove.

[0013] In the base station, the bristles can be uniformly contacted to the comb teeth when the bristles rotate.

[0014] In some embodiments, the bottom surface of the cleaning groove is provided with a drainage port, and the comb teeth are arranged at intervals along a direction from the sidewall of the cleaning groove to the drainage port.

[0015] In the base station, the hair or garbage adhered to the bristles can be separated from the bristles, and the dirt can be directly collected in the drainage port.

[0016] In some embodiments, the drainage port is provided with a filter.

[0017] In the base station, the large garbage or foreign matter can be prevented from entering the drainage system, and the drainage system can be prevented from being blocked to some extent.

[0018] In some embodiments, the base is provided with two cleaning grooves, and the two cleaning grooves are communicated with each other. The cleaning device includes two cloth pans, and the two cleaning grooves are arranged corresponding to the two cloth pans. The two cleaning grooves share one drainage port.

[0019] In the base station, the drainage flow can be concentrated, and the drainage efficiency can be improved to some extent.

[0020] In some embodiments, the base station includes a water inlet pipe, the scraping strip is provided with a water inlet groove, and the water inlet pipe is arranged above the water inlet groove. The water inlet groove is communicated with the cleaning groove.

[0021] In the base station, the cloth pan or the bristles can be uniformly and sufficiently cleaned when the cloth pan or the bristles are cleaned.

[0022] In some embodiments, the base is provided with a guide device configured to adjust the orientation of the cleaning device so that the cloth pan or the bristles of the cleaning device is located in the cleaning groove.

[0023] In the base station, the cloth pan or the bristles of the cleaning device can be accurately cleaned in the cleaning groove.

[0024] In some embodiments, the base is provided with an entrance, and the guide device includes a first guide wheel and a second guide wheel. The first guide wheel and the second guide wheel are arranged on opposite sides of the entrance, respectively.

[0025] In the base station, the position of the cloth pan or the bristles of the cleaning device can be adjusted by the guide wheels to accurately enter the cleaning groove for cleaning.

[0026] In some embodiments, the base station comprises a drying device configured to blow air into the cleaning tank when in operation to dry the mop tray or the edge brush.

[0027] In the base station described above, the mop tray and the edge brush can be dried shortly after cleaning, preventing bacteria from growing or odor from being generated due to moisture, and maintaining cleanliness and hygiene to some extent. In addition, the base station can prevent the cleaning equipment from causing water droplets to wet and slip on the ground when the cleaning equipment is moved away from the base station.

[0028] In some embodiments, the base station comprises a sterilization device configured to sterilize the mop tray or the edge brush in the cleaning tank when in operation.

[0029] In the base station described above, the sterilization device can sterilize the dried mop tray or the edge brush, thereby maintaining the hygiene and safety of the mop tray to some extent.

[0030] The cleaning system provided by the embodiments of the present application comprises a base station and a cleaning equipment, the base station is in communication connection with the cleaning equipment, the cleaning equipment comprises an edge brush and a mop tray, the base station comprises a cleaning tank and a cleaning part, the cleaning part is arranged on the bottom surface of the cleaning tank, and the cleaning system is configured to control the base station and the cleaning equipment to perform a first cleaning stage and a second cleaning stage.

[0031] The first cleaning stage comprises: arranging the edge brush in the cleaning tank, controlling the edge brush to rotate, and controlling the base station to clean the edge brush, the edge brush rotates to interfere with the cleaning part to cause dirt on the edge brush to fall into the cleaning tank.

[0032] The second cleaning stage comprises: arranging the mop tray in the cleaning tank, controlling the mop tray to rotate, and controlling the base station to clean the mop tray, the mop tray rotates to interfere with the cleaning part to cause dirt on the mop tray to fall into the cleaning tank.

[0033] In the cleaning system described above, the edge brush and the mop tray of the cleaning equipment are cleaned through the first cleaning stage and the second cleaning stage, thereby avoiding the problem that dirt is left on the mop tray and the edge brush for a long time, which affects the cleaning effect and the service life to some extent.

[0034] In some embodiments, the cleaning equipment comprises a filter screen part, a drying device, and a dust collection space.

[0035] The first cleaning stage and the second cleaning stage comprise: dirt falling into the cleaning tank is collected to the filter screen part, the drying device dries the filter screen part, and the dirt dried in the filter screen part can be collected into the dust collection space.

[0036] The cleaning system can further process the dirt removed, which is conducive to keeping the environment clean and hygienic.

[0037] In some embodiments, the cleaning device comprises a universal wheel.

[0038] The first cleaning stage comprises: placing the universal wheel in the cleaning tank, and the water flow carried by the rotating side brush is thrown to the universal wheel to clean the universal wheel by water flow impact.

[0039] The cleaning system can clean the universal wheel to some extent to prolong the service life of the universal wheel.

[0040] The additional aspects and advantages of the embodiments of the present application will be partially given in the following description, some will become apparent from the following description, or will be understood by those skilled in the art through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0041] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

[0042] Figure 1 is a structural schematic diagram of a base station of the embodiment of the present application;

[0043] Figure 2 is another structural schematic diagram of a base station of the embodiment of the present application;

[0044] Figure 3 is a module schematic diagram of a cleaning system of the embodiment of the present application.

[0045] Explanation of main element symbols:

[0046] Base-10, cleaning tank-20, first cleaning tank-23, second cleaning tank-26, cleaning part-30, scraping strip-32, convex point-34, comb tooth part-36, comb tooth-38, drain-43, filter-46, filter hole-49, water inlet pipe-53, water inlet tank-56, entrance-60, guide device-70, first guide wheel-73, second guide wheel-76, drying device-80, disinfection device-90, base station-100, first controller-150, cleaning device-200, side brush-210, universal wheel-220, cloth tray-230, second controller-250, cleaning system-1000. DETAILED DESCRIPTION

[0047] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are merely intended to explain the present application, and are not to be understood as limiting the present application.

[0048] In the description of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0049] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. It can be mechanically connected, or it can be electrically connected. It can be directly connected, or it can be indirectly connected through an intermediate medium. It can be the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or can include the contact of the first and second features through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include the vertical direction of the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the vertical direction of the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0051] The disclosures herein provide many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described herein. Of course, they are only examples and the purpose is not to limit the present application. In addition, the present application can repeatedly refer to numbers and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, which does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those skilled in the art can realize the application of other processes and / or the use of other materials.

[0052] Please refer to Figure 1 and Figure 2 , the base station 100 provided by the embodiment of the present application includes a base 10 and a cleaning part 30. The base 10 is provided with a cleaning groove 20, and the cleaning part 30 is arranged on the bottom surface of the cleaning groove 20. The cleaning part 30 is configured to clean the cloth tray 230 and the edge brush 210 of the cleaning device 200.

[0053] In the above base station 100, the cleaning part 30 is arranged on the bottom surface of the cleaning groove 20 of the base 10. The cleaning part 30 can be used to clean the cloth tray 230 and the edge brush 210 of the cleaning device 200, so that the problem that dirt is left on the cloth tray 230 and the edge brush 210 for a long time, affecting the cleaning effect and service life, can be avoided to some extent.

[0054] Specifically, the cleaning device 200 can be a device with cleaning capability. Alternatively, the cleaning device 200 includes but is not limited to a sweeper, a scrubber, a vacuum cleaner, a pressure washer and the like. The cleaning device 200 can be moved to the base station 100 for charging, cleaning and the like to ensure the continuous and efficient operation of the device.

[0055] In the related art, the cleaning device includes an edge brush assembly and a cloth tray. The edge brush assembly can drive the edge brush to rotate at high speed, which is used to sweep the dust and debris in the area that is difficult to reach, such as the corner of the wall and the edge of the furniture, into the suction port, thereby realizing the sweeping function. The cloth tray realizes the mopping function by carefully wiping the ground with the cloth tray. During use, the cleaning device can return to the base station for charging, cleaning of the cloth tray and the like. However, the edge brush assembly is easily neglected in maintenance. Since the edge brush frequently contacts the ground, it not only needs to clean the dust, but also may entangle hair, fibers and other sundries. In addition, due to the lack of regular cleaning and maintenance, dirt, dust and even oil may gradually accumulate on the edge brush, which not only reduces the cleaning efficiency of the cleaning device, greatly weakens the cleaning effect, but also accelerates the wear of the edge brush assembly, shortens its service life, and increases the maintenance cost and replacement frequency of the user.

[0056] In the embodiment of the present application, please refer toFigure 1 The cleaning tank 20 is provided on the base 10 of the cleaning device 200, which can be provided in the housing of the base station 100, which is provided with an opening to allow the cleaning device 200 to enter and exit the base station 100. The base 10 is used to carry the cleaning device 200 and perform various cleaning operations. The cleaning tank 20 provides a cleaning area for the cleaning of the cloth tray 230 and the edge brush 210. Optionally, the shape and size of the cleaning tank 20 match those of the cloth tray 230 and the edge brush 210. The cleaning portion 30 is provided on the bottom surface of the cleaning tank 20, which can contact the cloth tray 230 or the edge brush 210 when the cloth tray 230 or the edge brush 210 of the cleaning device 200 is provided in the cleaning tank 20. The cleaning portion 30 is used to contact clean the cloth tray 230 and the edge brush 210 of the cleaning device 200 to ensure that dirt, dust, and other impurities can be effectively removed.

[0057] In an embodiment, the edge brush 210 can be provided in the front half of the cleaning device 200, and the cloth tray 230 can be provided in the rear half of the cleaning device 200. When the cleaning device 200 needs to return to the base station 100 for charging or other reasons, it will automatically or through user-sent control instructions move to the base 10 of the base station 100, adjust its own orientation so that the cloth tray 230 or the edge brush 210 is located in the cleaning tank 20, and the base station 100 and the cleaning device 200 start cleaning the cloth tray 230 or the edge brush 210. During the cleaning process, the generated sewage and impurities will be collected in the cleaning tank 20, and the base station 100 can drain the sewage in the cleaning tank 20 after the cleaning process, or the user can easily pour and clean the cleaning tank 20 to maintain the hygiene of the base station 100.

[0058] In some embodiments, the cleaning portion 30 includes a scraping strip 32 and / or a comb portion 36 configured to clean the cloth tray 230 and / or the edge brush 210.

[0059] In this way, the dirt and debris on the cloth tray 230 and the edge brush 210 can be effectively cleaned.

[0060] Specifically, when the cleaning device 200 enters the base station 100 and performs cloth tray 230 cleaning, the tail of the cleaning device 200 enters the base station 100, so that the cloth tray 230 is placed in the cleaning tank 20. After the cleaning device 200 is in place, the cleaning device 200 can control the cloth tray 230 to rotate and contact the scraping strip 32 (such as an interference fit) so that the scraping strip 32 scrapes the dirt on the cloth tray 230 and collects it into the cleaning tank 20.

[0061] Optionally, the scraping strip 32 is provided with a plurality of convex points 34, by increasing the friction between the scraping strip 32 and the mop tray 230 to prevent slipping, the scraping effect of the cleaning mop tray 230 can be increased, so that the cleaning effect of the mop tray 230 is further improved. The shape of the convex point 34 can be specifically limited according to the actual situation, and the utility model does not make specific limitation. In one example, the shape of the convex point 34 is cylindrical.

[0062] When the cleaning device 200 enters the base station 100 and cleans the side brush 210, the front part of the cleaning device enters the base station 100, so that the side brush 210 is placed in the cleaning groove 20. After the cleaning device 200 is in place, the cleaning device 200 can control the side brush 210 to rotate, and contact the comb tooth part 36 (such as can be interference fit) so that the comb tooth part 36 separates the long strip-shaped sundries including but not limited to the hair, the fiber and the like wound on the side brush 210 from the side brush 210, and prevents these sundries from winding on the side brush 210 and being collected into the cleaning groove 20.

[0063] In some embodiments, a plurality of scraping strips 32 are arranged in the cleaning groove 20, the plurality of scraping strips 32 are arranged at intervals along the circumferential direction of the cleaning groove 20, and at least one pair of adjacent two scraping strips 32 is provided with a comb tooth part 36.

[0064] In this way, the dirt cleaned can be collected into the cleaning groove 20.

[0065] Specifically, please combine Figure 1 , a plurality of scraping strips 32 are arranged along the circumferential direction of the cleaning groove 20, and the plurality of scraping strips 32 are arranged at intervals, so that the mop tray 230 can be in full contact with the plurality of scraping strips 32 during cleaning rotation, and the effect of completely scraping off the dirt is achieved to a certain extent. At least one pair of adjacent two scraping strips 32 is provided with a comb tooth part 36, and optionally, please combine Figure 1 , the comb tooth part 36 is arranged between the two scraping strips 32 and close to the drain port 43 of the cleaning groove 20, so that the hair, the fiber or other long strip-shaped sundries wound on the side brush 210 can be combed and dropped, and these sundries are prevented from winding on the side brush 210 and being directly collected at the drain port 43.

[0066] The interval and the number of the scraping strip 32 and the comb tooth part 36 can be specifically limited according to the actual situation, and the utility model does not make specific limitation. In one example, please combine Figure 1 and Figure 2 , the number of the cleaning grooves 20 is 2, the two cleaning grooves 20 are communicated, the number of the scraping strips 32 arranged in each cleaning groove 20 is 2, and the number of the comb tooth parts 36 is 1. The two cleaning grooves 20 can be matched with the cleaning device 200 of the double-mop tray 230 and the double-side brush 210.

[0067] In some embodiments, the length direction of the comb tooth portion 36 is radially distributed along the position close to the center of the cleaning groove 20, and the position of the one end of the comb tooth portion 36 close to the cleaning groove 36 is higher than the position of the one end of the comb tooth portion 36 away from the cleaning groove 36.

[0068] In this way, the bristle brush 210 can be more uniformly contacted by the comb tooth portion 36 during the cleaning rotation.

[0069] Specifically, referring to Figure 1 , the length direction of the comb tooth portion 36 refers to the direction from the one end of the comb tooth portion 36 close to the cleaning groove 20 to the one end of the comb tooth portion 36 away from the cleaning groove 20, and the length direction of the comb tooth portion 36 is radially distributed along the position close to the center of the cleaning groove 20, that is, the comb tooth portion 36 extends outward along the position close to the center of the cleaning groove 20. Alternatively, because the outer side of the bristles of the bristle brush 210 is lower in height and the inner side is higher in height, the position of the one end of the comb tooth portion 36 close to the cleaning groove 36 is higher than the position of the one end of the comb tooth portion 36 away from the cleaning groove 36, so that the dirt cleaned off the bristle brush 210 can move along the inclined direction of the comb tooth portion 36 towards the center of the cleaning groove 20, helping to guide the dirt to concentrate in the cleaning groove 20, facilitating subsequent cleaning. At the same time, the residence time of the dirt on the comb tooth portion can be reduced, preventing the dirt from being re-deposited or spread during the cleaning process.

[0070] In some embodiments, the bottom surface of the cleaning groove 20 is provided with a drainage port 43, and the comb tooth portion 36 includes a plurality of comb teeth 38, and the plurality of comb teeth 38 are arranged in a spaced manner along the direction from the side wall of the cleaning groove 20 to the drainage port 43.

[0071] In this way, the hair or garbage adhered to the bristle brush 210 can be separated from the bristle brush 210 and directly collected at the drainage port 43.

[0072] Specifically, referring to Figure 1 , the comb tooth portion 36 includes a plurality of comb teeth 38, and the comb teeth 38 are optionally in the shape of an elongated cylinder. The plurality of comb teeth 38 are uniformly distributed in the direction from the side wall of the cleaning groove 20 to the drainage port 43, and the plurality of comb teeth 38 are arranged in a uniform manner along the direction from the side wall of the cleaning groove 20 to the drainage port 43, so that the bristle brush 210 can be fully and uniformly contacted by the plurality of comb teeth 38 during the cleaning rotation, thereby separating the hair or garbage adhered to the bristle brush 210 from the bristle brush 210 to clean the bristle brush 210. At the same time, the comb tooth portion 36 is close to the drainage port 43, so that the separated dirt can be directly collected at the drainage port 43.

[0073] The number, spacing and shape of the comb teeth 38 can be specifically defined according to actual conditions, which are not limited in the present application.

[0074] In some embodiments, the drainage port 43 is provided with a filter 46.

[0075] In this way, the large pieces of garbage or foreign matter can be prevented from entering the drainage system, and the drainage system can be prevented from being blocked to some extent.

[0076] Specifically, the drainage port 43 is located on the bottom surface of the cleaning tank 20, and is used to drain the sewage generated after the cleaning cloth tray 230 and the side brush 210 are cleaned. Optionally, the drainage port 43 is provided with a filter 46, which is used to filter large pieces of garbage or foreign matter including but not limited to hair, debris, etc., so as to prevent the drainage port 43 from being blocked, and to some extent, the drainage process is smooth, so that the base station 100 can continuously and efficiently perform the cleaning work. Optionally, the filter 46 is detachably arranged on the drainage port 43, so that the user can easily take down the filter 46 and clean the foreign matter on the filter 46.

[0077] The filter 46 is provided with a plurality of filter holes 49, so that the sewage or smaller size dirt generated after the cleaning cloth tray 230 and the side brush 210 are cleaned can enter the drainage port 43 through the filter holes 49.

[0078] The filter 46 and the cleaning tank 20 can be detachably connected by means including but not limited to screws, buckles, etc., so that the user can easily detach the filter 46, and clean the garbage or foreign matter filtered by the filter 46, so that the filtering effect of the filter 46 can be maintained to some extent.

[0079] The size and number of the filter holes 49 can be specifically limited according to the actual situation, and the utility model does not make specific limitation thereon.

[0080] In some embodiments, the base 10 is provided with two cleaning tanks 20, and the cleaning device 200 includes two cloth trays 230. The two cleaning tanks 20 are arranged corresponding to the two cloth trays 230, the two cleaning tanks 20 are communicated with each other, and the two cleaning tanks 20 share one drainage port 43.

[0081] In this way, the drainage flow can be concentrated, and the drainage efficiency can be improved to some extent.

[0082] Specifically, the base 10 is provided with two independent cleaning tanks 20, which are used to accommodate and clean the cloth trays 230 or the side brushes 210 at the corresponding positions of the cleaning device 200. Please refer to Figure 1 The cleaning tank 20 includes a first cleaning tank 23 and a second cleaning tank 26, which are respectively located on the left and right sides of the filter 46. The first cleaning tank 23 and the second cleaning tank 26 are communicated with each other, and the middle of the first cleaning tank 23 and the second cleaning tank 26 is provided with a shared drainage port 43, so that the sewage generated after the cleaning cloth tray 230 or the side brush 210 is cleaned can be drained through the drainage port 43, the drainage flow can be concentrated, the drainage efficiency can be improved to some extent, and the sewage and the foreign matter can be quickly drained.

[0083] Optionally, when the cleaning cloths 230 or the edge brushes 210 are being cleaned, the two cleaning cloths 230 or the two edge brushes 210 rotate in opposite directions to prevent dirt from splashing, so that the dirt is more easily controlled between the cleaning cloths 230 and the sewage is easily drained from the middle shared drain 43 without being thrown around. In the embodiments of the present application, please refer to Figure 1 , the cleaning cloths 230 or the edge brushes 210 arranged on the cleaning equipment 200 corresponding to the first cleaning groove 23 rotate in the clockwise direction when being cleaned, and the cleaning cloths 230 or the edge brushes 210 corresponding to the second cleaning groove 26 rotate in the counterclockwise direction when being cleaned. In other embodiments, the cleaning cloths 230 or the edge brushes 210 arranged on the cleaning equipment 200 corresponding to the first cleaning groove 23 rotate in the counterclockwise direction when being cleaned, and the cleaning cloths 230 or the edge brushes 210 corresponding to the second cleaning groove 26 rotate in the clockwise direction when being cleaned. In other embodiments, when the cleaning cloths 230 or the edge brushes 210 are being cleaned, the two cleaning cloths 230 or the two edge brushes 210 can rotate in the same direction.

[0084] It can be understood that each cleaning groove 20 can be independently cleaned. That is, when one of the cleaning cloths 230 or the edge brushes 210 is being cleaned in one of the cleaning grooves 20, the other cleaning cloth 230 or the edge brush 210 can not be cleaned in the other cleaning groove 20.

[0085] In some embodiments, the base station 100 includes a water inlet pipe 53, and the scraping strip 32 is provided with a water inlet groove 56, the water inlet pipe 53 is arranged above the water inlet groove 56, and the water inlet groove 56 is in communication with the cleaning groove 20.

[0086] In this way, when the cleaning cloths 230 or the edge brushes 210 are being cleaned, each part can be uniformly and sufficiently cleaned.

[0087] Specifically, please refer to Figure 1The scraper 32 includes a water inlet 56 that extends along the length of the scraper 32. The base station 100 may include a first controller 150 and a water pump. The first controller 150 is electrically connected to the water pump. A water inlet pipe 53 located above the water inlet 56 is connected to a clean water tank via the water pump to provide clean water and / or cleaning fluid to the cleaning cloth tray 230 and the side brush 210. The clean water and / or cleaning fluid can be driven by the water pump controlled by the first controller 150 to flow into the water inlet 56. The clean water and / or cleaning fluid flows onto the scraper 32, so that the cloth tray 230 or the side brush 210 can fully contact the clean water or cleaning fluid when passing through the scraper 32. After the cleaning equipment 200 returns to the base station 100, the wiping tray 230 or the side brush 210 enters the cleaning tank 20. The first controller 150 controls the water pump to deliver clean water and / or cleaning fluid from the clean water tank to the water inlet pipe 53. The water inlet pipe 53 inputs clean water and / or cleaning fluid into the water inlet 56 of the scraper 32. The water inlet 56 guides the clean water and / or cleaning fluid to be distributed on the scraper 32, so that the wiping tray 230 or the side brush 210 can rotate and clean while contacting the scraper 32, and can also fully contact the clean water and / or cleaning fluid. All parts are cleaned evenly and thoroughly, which improves the cleaning efficiency to a certain extent.

[0088] In some embodiments, the base 10 is provided with a guide device 70, which is configured to adjust the orientation of the cleaning device 200 so that the cloth tray 230 or the side brush 210 of the cleaning device 200 is located in the cleaning tank 20.

[0089] This allows the cleaning device 200's cloth tray 230 or side brush 210 to accurately enter the cleaning tank 20 for cleaning.

[0090] Specifically, during the process of the cleaning device 200 returning to the base station 100, the position of the cleaning device 200 and the position of the cleaning tank 20 may be misaligned. When the cleaning device 200 comes into contact with the guide device 70, the guide device 70 can automatically adjust the direction of the cleaning device 200, so that the mop tray 230 or the side brush 210 can be positioned in the cleaning tank 20 to facilitate subsequent cleaning. This improves the cleaning efficiency of the cleaning device 200 to a certain extent, and also effectively prevents the cleaning device 200 from getting stuck or damaged when entering the cleaning tank 20, thus extending the service life of the cleaning device 200 to a certain extent.

[0091] In some embodiments, the base 10 is provided with an entrance 60, and the guiding device 70 includes a first guide wheel 73 and a second guide wheel 76, which are respectively located on opposite sides of the entrance 60.

[0092] In this way, the position of the cleaning device 200's mop tray 230 or side brush 210 can be adjusted by the guide wheels to accurately enter the cleaning tank 20 for cleaning.

[0093] Specifically, please refer to Figure 1 The entrance 60 can be provided corresponding to the notch on the shell. The first guide wheel 73 and the second guide wheel 76 are respectively arranged on the opposite sides of the entrance 60. During the process of the cleaning device 200 entering the cleaning tank 20 through the entrance 60, if the position of the cleaning device 200 is not aligned with the position of the cleaning tank 20, the cleaning device 200 will contact the guide wheels, and the guide wheels can rotate when the cleaning device 200 abuts, thereby guiding the cleaning device 200 to the direction of the cleaning tank 20, so that the cloth disc 230 or the brush 210 can accurately fall into the cleaning tank 20.

[0094] In Figure 1 , the number of the first guide wheel 73 and the second guide wheel 76 is two. In the direction of the entrance 60 close to the cleaning tank 20, the size of the front guide wheel is smaller than the size of the rear guide wheel, so that the distance between the front first guide wheel 73 and the second guide wheel 76 is larger, which can coarsely guide the cleaning device 200, and the distance between the rear first guide wheel 73 and the second guide wheel 76 is smaller, which can finely guide the cleaning device 200, so that the cloth disc 230 or the brush 210 is more easily fallen into the cleaning tank 20 during the process of the cleaning device 200 entering the base station 100.

[0095] The number of the first guide wheel 73 and the second guide wheel 76 can be specifically limited according to actual conditions, and the utility model does not make specific limitation.

[0096] In some embodiments, the base station 100 includes a drying device 80, which is configured to blow air into the cleaning tank 20 to dry the cloth disc 230 or the brush 210 when working.

[0097] In this way, the cloth disc 230 and the brush 210 can recover to a dry state in a short time after cleaning, prevent bacteria from breeding or odor from being generated due to moisture, maintain cleanliness and hygiene to a certain extent, and also prevent the cleaning device 200 from causing water droplets to wet and slip on the ground when leaving the base station 100.

[0098] Specifically, please refer to Figure 3 The base station 100 includes a drying device 80, which can be arranged in the shell. The drying device 80 includes a fan responsible for generating airflow. Optionally, the fan includes but is not limited to a centrifugal fan, an axial flow fan or other types of fans, and the type of the fan can be specifically limited according to the required airflow intensity, and the utility model does not make specific limitation.

[0099] After the cleaning of the cleaning cloth tray 230 or the side brush 210 is completed, the cleaning device 200 returns to the base station 100, and the first controller 150 can control the drying device 80 to start. After the fan is powered on, an air flow is generated, and the air flow blows to the cleaning cloth tray 230 or the side brush 210 in the cleaning tank 20. The air flow accelerates the evaporation of moisture, so that the cleaning cloth tray 230 or the side brush 210 is quickly dried.

[0100] Optionally, the drying device 80 can further include a heating element to heat the air flow of the fan, helping the cleaning cloth tray 230 and the side brush 210 to further quickly dry.

[0101] In some embodiments, the base station 100 includes a disinfecting device 90 configured to disinfect the cleaning cloth tray 230 or the side brush 210 in the cleaning tank 20 when in operation.

[0102] In this way, the dried cleaning cloth tray 230 or the side brush 210 can be sterilized and disinfected, to some extent, to maintain the hygiene and safety of the cleaning cloth tray 230.

[0103] Specifically, in one embodiment, after the cleaning cloth tray 230 or the side brush 210 is dried, the first controller 150 can control the disinfecting device 90 to start. The disinfecting device 90 includes but is not limited to a UV (ultraviolet) lamp disinfection or a disinfectant spray disinfection device, and the present application does not make specific limitations thereon. In one embodiment, the disinfecting device 90 uses a UV lamp for disinfection, and the first controller 150 controls the UV lamp to emit ultraviolet rays to irradiate the cleaning cloth tray 230 or the side brush 210 to kill bacteria and viruses. In one embodiment, the first controller 150 controls the nozzle to spray disinfectant onto the cleaning cloth tray 230 or the side brush 210 to chemically disinfect bacteria and viruses.

[0104] Please refer to Figure 3 The cleaning system 1000 provided by the embodiments of the present application includes a base station 100 and a cleaning device 200, the base station 100 is in communication connection with the cleaning device 200, the cleaning device 200 includes a side brush 210 and a cleaning cloth tray 230, the base station 100 includes a cleaning tank 20 and a cleaning part 30, the cleaning part 30 is arranged on the bottom surface of the cleaning tank 20, and the cleaning system 1000 is configured to control the base station 100 and the cleaning device 200 to perform a first cleaning stage and a second cleaning stage.

[0105] The first cleaning stage includes: arranging the side brush 210 in the cleaning tank 20, and controlling the side brush 210 to rotate and controlling the base station 100 to clean the side brush 210, so that the dirt on the side brush 210 falls into the cleaning tank 20 when the side brush 210 rotates and interferes with the cleaning part 30.

[0106] The second cleaning stage includes: placing the cleaning cloth tray 230 in the cleaning tank 20, and controlling the rotation of the cleaning cloth tray 230 and the cleaning of the cleaning cloth tray 230 by the base station 100, and the dirt on the cleaning cloth tray 230 falls into the cleaning tank 20 when the cleaning cloth tray 230 rotates and interferes with the cleaning part 30.

[0107] In the cleaning system 1000, the side brush 210 and the cleaning cloth tray 230 of the cleaning device 200 are cleaned through the first cleaning stage and the second cleaning stage, so that the problem of affecting the cleaning effect and the service life caused by the long-term residue of dirt on the cleaning cloth tray 230 and the side brush 210 can be avoided to some extent.

[0108] Specifically, the cleaning system 1000 includes a base station 100 and a cleaning device 200, and the cleaning device 200 can be moved to the base station 100 to perform the first cleaning stage and the second cleaning stage. Optionally, the base station 100 can also charge, clean, and the like for the cleaning device 200. The cleaning device 200 can be a device with cleaning capability. Optionally, the cleaning device 200 includes but is not limited to a sweeper, a scrubber, a vacuum cleaner, a pressure washer, and the like.

[0109] Please refer to Figure 3 The base station 100 and the cleaning device 200 are communicatively connected, and the first cleaning stage and the second cleaning stage can be performed through interaction. The base station 100 includes a first controller 150, and the cleaning device 200 includes a second controller 250. The first controller 150 and the second controller 250 are communicatively connected through a communication module. In an embodiment, the cleaning device 200 and the base station 100 are directly communicatively connected. In an embodiment, the cleaning device 200 and the base station 100 are communicatively connected through a terminal device. The terminal device includes but is not limited to a mobile phone, a tablet computer, a personal computer, a server, a wearable smart device, and the like. The communicative connection includes but is not limited to Bluetooth communication, wifi communication, mobile network communication, and the like.

[0110] The first controller 150 and the second controller 250 cooperatively work through wireless communication to control the base station 100 and the cleaning device 200 to perform the first cleaning stage and the second cleaning stage. Optionally, in other embodiments, since the cleaning device 200 is located on the base 10 of the base station 100, the cleaning device 200 and the base station 100 can be serially communicatively connected, that is, the cleaning device 200 and the base station 100 are communicatively connected through a wire, so as to cooperatively work through wired communication to perform the first cleaning stage and the second cleaning stage.

[0111] It can be understood that in other embodiments, the cleaning device 200 can automatically return to the base station 100 after completing the cleaning task, and the first controller 150 and the second controller 250 cooperatively work through wireless communication to perform the first cleaning stage and the second cleaning stage.

[0112] When the cleaning system 1000 controls the base station 100 and the cleaning device 200 to perform the first cleaning stage and the second cleaning stage, the first controller 150 and the second controller 250 can control the cleaning device 200 and the base station 100 to send a reminder signal, for example, the first controller 150 controls the base station 100 and / or the second controller 250 controls the cleaning device 200 to send a signal reminder including but not limited to sound, light, etc., or send a reminder signal to the user's terminal, informing the user to check the status of the cleaning device 200 for self-cleaning. The user's terminal includes but is not limited to a mobile phone, a tablet computer, a personal computer, a wearable smart device, etc.

[0113] When the cleaning system 1000 controls the cleaning device 200 and the base station 100 to perform the first cleaning stage, one or more infrared sensors are arranged in the base station 100, which periodically sends infrared signals, and an infrared receiver is arranged on the cleaning device 200 for receiving the signals sent by the infrared sensor, and is electrically connected with the second controller 250. When the front end of the cleaning device 200 (i.e., the end where the brush 210 is located) approaches the base station 100, the infrared sensor guides the cleaning device 200 to enter the base station 100 by adjusting the emission direction and intensity of the infrared signal. The infrared receiver on the cleaning device 200 receives the signal in real time, and the second controller 250 adjusts the position and direction of the cleaning device 200 according to the intensity and direction of the signal, and approaches the base station 100, and the guiding device 70 guides the adjustment of the cleaning device 200, so that the brush 210 enters the cleaning groove 20 for cleaning.

[0114] When the brush 210 is located in the cleaning groove 20, the position sensor transmits the position information to the first controller 150, and the first controller 150 transmits the instruction that the first cleaning stage can be performed to the second controller 250 through wireless communication. During the preset cleaning time of the first cleaning stage, the second controller 250 controls the brush 210 to rotate, and the first controller 150 controls the base station 100 to clean the brush 210. During the rotation of the brush 210, the comb tooth part 36 can separate the long strip-shaped impurities including but not limited to the hair and fibers wound on the brush 210 from the brush 210, to prevent these impurities from winding on the brush 210 and being collected into the cleaning groove 20. The base station 100 includes a drain 43 and a sewage tank, and the drain 43 communicates the cleaning groove 20 with the sewage tank, so that the sewage generated during the cleaning of the brush 210 can flow into the sewage tank through the drain 43.

[0115] It can be understood that, optionally, during the execution of the first cleaning stage, the second controller 250 controls the brush 210 to rotate at a speed greater than the speed at which the brush 210 rotates during the execution of a cleaning task (such as a sweeping task), which can enhance the self-cleaning effect to a certain extent.

[0116] Optionally, the sewage tank is provided with a pollution degree sensor for detecting the pollution degree of the collected sewage to determine whether the current side brush 210 needs secondary or multiple cleaning. The pollution degree sensor can include a light emitter and a light receiver. The light emitter can emit light (hereinafter referred to as detection light) into the sewage in the sewage tank. The light receiver can receive the detection light scattered or transmitted by the sewage, and output the corresponding light intensity. The pollution degree of the sewage in the sewage tank is different, and the light intensity of the scattered or transmitted detection light is also different, so that the pollution degree of the water in the sewage tank can be detected by the light intensity of the scattered or transmitted detection light, and it can be determined whether the side brush 210 is clean. It can be understood that the light intensity threshold corresponding to the detection of the pollution degree of the water can be pre-calibrated and stored in the base station 100. Different light intensity thresholds correspond to different dirt degrees. The sewage contains suspended particles, grease, impurities and other suspended matters. The more suspended matters, the stronger the light intensity of the scattered detection light, and the higher the turbidity of the sewage, that is, the more serious the pollution degree. The lower the light intensity of the transmitted detection light, and the higher the turbidity of the sewage, that is, the more serious the pollution degree.

[0117] For the transmitted detection light, if the pollution degree sensor detects a light intensity threshold greater than the preset light intensity threshold when the side brush 210 is cleaned for a preset cleaning time, it indicates that the side brush 210 is cleaned, and the first controller 150 transmits a cleaning completion instruction to the second controller 250 through wireless communication. The second controller 250 controls the side brush 210 to stop rotating, and the first controller 150 controls the base station 100 to stop cleaning.

[0118] If the pollution degree sensor detects a light intensity threshold less than the preset light intensity threshold when the side brush 210 is cleaned for a preset cleaning time, the first controller 150 and the second controller 250 need to re-determine the cleaning time of the side brush 210 according to the light intensity threshold detected by the pollution degree sensor, and control the side brush 210 to clean according to the re-determined cleaning time until the light intensity threshold detected by the pollution degree sensor is greater than the preset light intensity threshold.

[0119] When the cleaning system 1000 controls the cleaning device 200 and the base station 100 to perform the second cleaning stage, the rear end of the cleaning device 200 (i.e. the end where the cloth tray 230 is located) approaches the base station 100, and the infrared sensor guides the cleaning device 200 into the base station 100 by adjusting the emission direction and intensity of the infrared signal. The infrared receiver on the cleaning device 200 receives the signal in real time, and the second controller 250 adjusts the position and direction of the cleaning device 200 according to the intensity and direction of the signal, and approaches the base station 100. The guide device 70 guides the adjustment of the cleaning device 200, so that the cloth tray 230 enters the cleaning groove 20 for cleaning.

[0120] When the cleaning cloth tray 230 is located in the cleaning tank 20, the position sensor transmits the position information to the first controller 150, and the first controller 150 transmits the instruction of the second cleaning stage to the second controller 250 through wireless communication. During the preset cleaning time of the second cleaning stage, the second controller 250 controls the cleaning cloth tray 230 to rotate, and the first controller 150 controls the base station 100 to clean the cleaning cloth tray 230. During the rotation of the cleaning cloth tray 230, the cleaning cloth tray 230 interferes with the scraping strip 32, and the scraping strip 32 scrapes the dirt on the cleaning cloth tray 230 and collects the dirt into the cleaning tank 20. The sewage generated by cleaning the cleaning cloth tray 230 can flow into the sewage tank through the drain 43.

[0121] Optionally, the sewage tank is provided with a pollution degree sensor for detecting the pollution degree of the collected sewage to determine whether the cleaning cloth tray 230 needs to be cleaned again or multiple times. For the transmitted detection light, if the light intensity threshold value detected by the pollution degree sensor is greater than the preset light intensity threshold value when the cleaning cloth tray 230 is cleaned for the preset cleaning time, it indicates that the cleaning of the cleaning cloth tray 230 is completed, and the first controller 150 transmits the cleaning completion instruction to the second controller 250 through wireless communication. The second controller 250 controls the cleaning cloth tray 230 to stop rotating, and the first controller 150 controls the base station 100 to stop cleaning.

[0122] If the light intensity threshold value detected by the pollution degree sensor is less than the preset light intensity threshold value when the cleaning cloth tray 230 is cleaned for the preset cleaning time, the first controller 150 and the second controller 250 need to re-determine the cleaning time of the cleaning cloth tray 230 according to the light intensity threshold value detected by the pollution degree sensor, and control the cleaning cloth tray 230 to be cleaned according to the re-determined cleaning time until the light intensity threshold value detected by the pollution degree sensor is greater than the preset light intensity threshold value.

[0123] Optionally, in an embodiment, the cleaning system 1000 can include a control device which can be in communication connection with the cleaning device 200 and the base station 100 to control the cleaning device 200 and the base station 100 to perform the first cleaning stage and the second cleaning stage. The control device can be a device independent of the cleaning device 200 or the base station 100, or a device provided on the cleaning device 200 or the base station 100.

[0124] In some embodiments, the cleaning device 200 includes a filter screen part, a drying device 80, and a dust collection space;

[0125] The first cleaning stage and the second cleaning stage include: the dirt falling into the cleaning tank is collected into the filter screen part, the drying device 80 dries the filter screen part, and the dried dirt in the filter screen part can be collected into the dust collection space.

[0126] In this way, the dirt removed can be further treated, which is conducive to keeping the environment clean and hygienic.

[0127] Specifically, the base station 100 comprises a filter screen part, a drying device 80 and a dust collection space. The filter screen part is arranged at the outlet of the drain port 43 and is used to collect the dirt removed from the edge brush 210 and / or the cloth tray 230. When the cleaning system 1000 performs the first cleaning stage and the second cleaning stage, the second controller 250 controls the edge brush 210 or the cloth tray 230 to rotate and interfere with the scraping strip 32. The scraping strip 32 scrapes the dirt on the edge brush 210 and / or the cloth tray 230, and the water flow impacts the dirt falling into the cleaning tank 20 and flows to the filter screen part. The filter screen part intercepts the dirt scraped by the scraping strip 32 or impacted by the water flow. Then, the first controller 150 can control the drying device 80 to perform a drying operation on the filter screen part to remove the moisture of the dirt in the filter screen part, prevent bacteria from breeding and odor from being generated. Alternatively, the base station 100 can comprise a suction device. The dried dirt can be sucked to the dust collection space by the suction device. The dust collection space comprises but is not limited to a dust bag, a dust cup and the like, which is convenient for the user to clean the dust collection space.

[0128] In some embodiments, the cleaning device 200 comprises a universal wheel 220. The first cleaning stage comprises: arranging the universal wheel 220 in the cleaning tank 20, and rotating the edge brush 210 to splash the water flow carried thereby to the universal wheel 220 to clean the universal wheel 220 by water flow impact.

[0129] In this way, the universal wheel 220 can be cleaned to prolong the service life of the universal wheel 220 to a certain extent.

[0130] Specifically, the universal wheel 220 is arranged at the front end of the cleaning device 200 and close to the position of the edge brush 210, and is used to support the movement and steering of the device. When the cleaning system 1000 controls the base station 100 and the cleaning device 200 to perform the first cleaning stage, the edge brush 210 and the universal wheel 220 are arranged in the cleaning tank 20. The second controller 250 controls the edge brush 210 to rotate. During the rotation, the water and / or cleaning liquid carried by the edge brush 210 is splashed out to form a water flow. The splashed water flow directly acts on the universal wheel 220 by impact to clean the surface and the inside of the universal wheel 200 and remove dirt and residues. Therefore, the damage of the dirt and moisture to the universal wheel 220 can be prevented, and the service life of the universal wheel 220 can be prolonged to a certain extent.

[0131] Alternatively, when the cleaning system 1000 performs the first cleaning stage, the second controller 250 can control the rotating speed of the edge brush 210 to increase to the maximum rotating speed of the edge brush 210 in stable operation, which can improve the effect of the water flow impacting the universal wheel 220, thereby achieving better cleaning effect to a certain extent.

[0132] Optionally, when the cleaning system 1000 performs the first cleaning stage, the second controller 250 can control the brush 210 to rotate forward and / or reverse, so that the universal wheel 220 can be impacted by water flow in two directions, further improving the cleaning effect.

[0133] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0134] Although the embodiments of the present application have been shown and described above, it should be understood that the above-described embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-described embodiments within the scope of the present application.

Claims

1. A base station, characterized by comprising: The base is provided with a cleaning tank. The cleaning part is arranged on the bottom surface of the cleaning tank and is configured to clean the cloth pad and the edge brush of the cleaning device. The cleaning part comprises a scraping strip and / or a comb tooth part, which are configured to clean the cloth pad and / or the edge brush.

2. The base station of claim 1, wherein, A plurality of scraping strips are arranged in the cleaning tank, and the scraping strips are arranged at intervals along the circumferential direction of the cleaning tank.

3. The base station of claim 2, wherein, The length direction of the comb tooth part is radially distributed along the position close to the center of the cleaning tank.

4. The base station of claim 3, characterized in that, The bottom surface of the cleaning tank is provided with a drain port, and the comb tooth part comprises a plurality of comb teeth arranged at intervals from the side wall of the cleaning tank to the drain port.

5. The base station of claim 2, wherein, The drain port is provided with a filter.

6. The base station of claim 5, characterized in that, The base is provided with two cleaning tanks, and the cleaning device comprises two cloth pads.

7. The base station of claim 5, wherein, The base is provided with a water inlet pipe, and the scraping strip is provided with a water inlet groove.

8. The base station of claim 2, wherein, The base is provided with a guide device configured to adjust the orientation of the cleaning device so that the cloth pad or the edge brush of the cleaning device is located in the cleaning tank.

9. The base station of claim 1, wherein, The base is provided with an entrance, and the guide device comprises a first guide wheel and a second guide wheel arranged on opposite sides of the entrance.

10. The base station of claim 9, characterized in that, The base is provided with a drying device configured to blow air into the cleaning tank to dry the cloth pad or the edge brush when working.

11. The base station of claim 1, wherein, The base is provided with a disinfection device configured to disinfect the cloth pad or the edge brush in the cleaning tank when working.

12. The base station of claim 1, wherein, The base and the cleaning device are communicatively connected, the cleaning device comprises an edge brush and a cloth pad, the base comprises a cleaning tank and a cleaning part arranged on the bottom surface of the cleaning tank, and the cleaning system is configured to control the base and the cleaning device to perform a first cleaning stage and a second cleaning stage.

13. A cleaning system characterized by, The first cleaning stage comprises: locating the edge brush in the cleaning tank, controlling the rotation of the edge brush, and controlling the base to clean the edge brush. The second cleaning stage comprises: locating the cloth pad in the cleaning tank, controlling the rotation of the cloth pad, and controlling the base to clean the cloth pad. The cleaning device comprises a filter screen part, a drying device, and a dust collection space.

14. The cleaning system of claim 13, wherein, ​ The first cleaning stage and the second cleaning stage include: collecting dirt falling into the cleaning tank to the filter screen part, the drying device drying the filter screen part, and the dried dirt in the filter screen part being collected into the dust collection space.

15. The cleaning system of claim 13, wherein, The cleaning device includes universal wheels. The first cleaning stage includes: locating the universal wheels in the cleaning tank, and the water carried by the rotating side brush being thrown to the universal wheels to clean the universal wheels by water impact.

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