Cleaning base station and cleaning method and cleaning system thereof

Abstract

The invention provides a cleaning base station, a cleaning method thereof and a cleaning system, a cleaning device comprises a rolling brush, the cleaning base station comprises a base and an ultrasonic generator, and a cleaning tank is arranged on the top wall of the base; the bottom wall of the cleaning tank is obliquely arranged relative to the height direction of the base, and the orthographic projection of the bottom wall of the cleaning tank on the base in the height direction is located on the rear side of the orthographic projection of the axis of the rolling brush on the base in the height direction. The ultrasonic generator arranged in the base is positioned below the tank bottom wall and is in contact with the tank bottom wall; when the cleaning device is placed on the base, part of the structure of the rolling brush is located in the cleaning tank of the cleaning base station so as to conduct self-cleaning on the rolling brush. According to the cleaning base station, the distance between the ultrasonic generator and the rolling brush is reduced, so that the cleaning effect is better under the condition that the change of the capacity of the cleaning liquid in the cleaning tank is small.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cleaning devices, in particular to a cleaning base station, a cleaning method thereof and a cleaning system. BACKGROUND

[0002] With the improvement of people's living standards, cleaning devices are increasingly applied to people's daily life. In addition to the traditional dust collection function, the cleaning device also has a rolling brush for relative rotation with the ground to clean the ground. This type of cleaning device is generally equipped with a cleaning base station, and the cleaning base is provided with a cleaning tank, which can immerse the rolling brush in the cleaning tank containing water or cleaning liquid for cleaning. However, the cleaning base station in the related art can only solve some conventional dirt adhesion, but has poor self-cleaning ability for oil stains. After cleaning the kitchen or dining room, a large amount of oil stains on the rolling brush are still attached after self-cleaning by the cleaning base station, which is obviously visible. Therefore, users usually need to remove the rolling brush from the cleaning device for manual cleaning or directly replace the new rolling brush, resulting in a decrease in experience and a waste of accessories. SUMMARY

[0003] The embodiments of the present application provide a cleaning base station, a cleaning method thereof and a cleaning system, which are used to solve the problem of incomplete self-cleaning of the rolling brush of the cleaning device by the cleaning base station in the related art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: In a first aspect, the embodiments of the present application provide a cleaning base station for self-cleaning of a rolling brush of a cleaning device, the cleaning base station comprising: a base and an ultrasonic generator, a cleaning tank is arranged on the top wall of the base, the bottom wall of the cleaning tank is arranged in a tilted manner relative to the height direction of the base, and in the forward direction of the cleaning device, the lowest end of the bottom wall in the height direction of the base is in the orthographic projection of the base along the height direction, located on the rear side of the orthographic projection of the axis of the rolling brush along the height direction of the base; the ultrasonic generator is arranged in the base, and the ultrasonic generator is located below the bottom wall and in contact with the bottom wall; wherein part of the structure of the rolling brush can be located in the cleaning tank of the cleaning base station to perform self-cleaning of the rolling brush of the cleaning device.

[0005] In some implementations, the cleaning tank has a long strip structure, the length direction of the cleaning tank is parallel to the axis of the rolling brush, and the length direction of the cleaning tank, the forward direction and the height direction of the base are perpendicular to each other; the cleaning tank comprises a first end wall, a second end wall and a bottom wall connected between the first end wall and the second end wall, and in the forward direction, the depth between the opening of the cleaning tank and the bottom wall first increases and then decreases.

[0006] In some implementations, the bottom wall of the cleaning tank comprises a flat surface and / or a curved surface.

[0007] In some implementations, the bottom wall comprises a first bottom wall and a second bottom wall, the first bottom wall is flat, the second bottom wall is flat, the first bottom wall is arranged obliquely relative to the height direction of the base, the second bottom wall is arranged obliquely relative to the height direction of the base, the second bottom wall is connected to the rear side of the first bottom wall in the advancing direction, the included angle between the first bottom wall and the second bottom wall is obtuse, and the edge line formed between the first bottom wall and the second bottom wall is the bottommost end of the cleaning tank, which is parallel to the length direction of the cleaning tank.

[0008] In some implementations, the bottommost end is parallel to the length direction of the cleaning tank.

[0009] In some implementations, the first bottom wall and the second bottom wall are further connected by a third bottom wall, the included angle between the first bottom wall and the third bottom wall is obtuse, and the included angle between the second bottom wall and the third bottom wall is obtuse.

[0010] In some implementations, the third bottom wall is flat, the third bottom wall is arranged obliquely relative to the height direction of the base, and the edge formed between the third bottom wall and the second bottom wall is the bottommost end of the bottom wall; or, the third bottom wall is curved.

[0011] In some implementations, the cleaning tank further comprises a side wall, the side wall is flat, and the side wall is connected between the bottom wall and the first end wall and the second end wall.

[0012] In some implementations, the ultrasonic generator comprises a vibration part, and the top end surface of the vibration part is in close contact with the bottom wall of the cleaning tank.

[0013] In some implementations, the intersection of the axis of the vibration part and the bottom wall of the cleaning tank is in the orthographic projection of the base along the height direction, and is located in front of the orthographic projection of the rolling brush along the height direction of the base in the advancing direction.

[0014] In some implementations, the top end surface of the vibration part is in close contact with the first bottom wall; and / or, the top end surface of the vibration part is in close contact with the second bottom wall.

[0015] In some implementations, the ultrasonic generator comprises a transducer, or the ultrasonic generator comprises a transducer and a horn.

[0016] In some embodiments, the transducer is a piezoelectric transducer or a magnetostrictive transducer; and / or, the number of the ultrasonic generators is multiple, and the multiple ultrasonic generators are arranged at intervals along the length direction of the cleaning tank.

[0017] In some embodiments, the base comprises a seat body and an upper cover, the upper cover is arranged on the seat body, and the cleaning tank is arranged on the upper cover.

[0018] In some embodiments, the upper cover is provided with a clearance, the cleaning tank is arranged in the clearance, and the tank opening periphery of the cleaning tank is stopped at the clearance.

[0019] In some embodiments, the upper cover is connected with a pressing plate, and the cleaning tank is detachably connected with the upper cover through the pressing plate.

[0020] In some embodiments, the clearance is provided with a waterproof strip, and the waterproof strip is wrapped between the tank opening of the cleaning tank and the clearance.

[0021] In some embodiments, the cleaning tank and the upper cover are integrally formed.

[0022] In some embodiments, the cleaning tank is made of metal or plastic.

[0023] In some embodiments, when the rolling brush is located in the cleaning tank, the outermost side of the rolling brush is in contact with the tank bottom wall, or there is a gap between the outermost side of the rolling brush and the tank bottom wall.

[0024] In some embodiments, the rolling brush comprises a roller and brush hairs arranged on the roller, and when the rolling brush is located in the cleaning tank, the maximum depth of the rolling brush in the cleaning tank in the height direction of the base is greater than half the length of the brush hairs, and the maximum depth is less than or equal to the length of the brush hairs.

[0025] In some embodiments, the cleaning base station further comprises a first heating module arranged in the base, and the first heating module is located below the cleaning tank.

[0026] In some embodiments, the cleaning base station further comprises a drying module, the drying module comprises a drying assembly arranged in the base and a drying channel, an air inlet of the drying channel is connected with the drying assembly, the drying assembly and an air outlet of the drying channel are respectively located on two sides of the cleaning tank along the forward direction, and the air outlet of the drying channel is located above the cleaning tank and faces the cleaning tank.

[0027] In some embodiments, the drying assembly is located on the side of the cleaning tank close to the inlet of the negative pressure air duct.

[0028] In a second aspect, the embodiments of the present application provide a cleaning system, comprising: the cleaning base station according to the first aspect and the cleaning device according to the second aspect, wherein the cleaning device comprises a roller brush, and a part of the roller brush is capable of being located in the cleaning tank of the cleaning base station to perform self-cleaning of the roller brush of the cleaning device by the cleaning base station.

[0029] In some implementations, the cleaning device comprises a housing, a water supplement channel and a negative pressure air duct, the roller brush is rotatably connected to the housing, the water supplement channel is arranged on the housing, a water outlet of the water supplement channel is located on a front side of the roller brush in a forward direction of the cleaning device, and the negative pressure air duct is arranged on the housing, an inlet of the negative pressure air duct is located on a rear side of the roller brush in the forward direction of the cleaning device.

[0030] In some implementations, the cleaning base station comprises a base, a cleaning tank is arranged on a top wall of the base, a tank bottom wall of the cleaning tank is arranged in a tilted manner relative to a height direction of the base, and a lowest end of the tank bottom wall in the height direction of the base is located on a side close to the inlet of the negative pressure air duct in the forward direction of the cleaning device.

[0031] In some implementations, when the roller brush is located in the cleaning tank, a gap is formed between an outermost side of the roller brush and the tank bottom wall.

[0032] In some implementations, the roller brush comprises a roller and brush hairs arranged on the roller, when the roller brush is located in the cleaning tank, a maximum depth of the roller brush in the cleaning tank in the height direction of the base is greater than half a length of the brush hairs, and the maximum depth is less than or equal to the length of the brush hairs.

[0033] In some implementations, the housing is provided with a plurality of water outlets, and the plurality of water outlets are arranged in a spaced manner below the water outlet of the water supplement channel along an axis of the roller brush.

[0034] In some implementations, the water supplement channel comprises a water tank arranged on the housing and a water injection pipeline, one end of the water injection pipeline is in communication with the water tank, and the other end of the water injection pipeline is the water outlet of the water supplement channel.

[0035] In some implementations, the water injection pipeline is provided with a cleaning outlet, the water injection pipeline comprises a water inlet section and a water outlet section above the roller brush, the water inlet section is in communication between the water tank and the water outlet section, the water outlet section extends along a circumferential direction of the roller brush, one end of the water outlet section close to the inlet of the negative pressure air duct is provided with the cleaning outlet, and the other end of the water outlet section away from the inlet of the negative pressure air duct is the water outlet of the water supplement channel.

[0036] In some implementations, the cleaning device further comprises a second heating module arranged on the housing, and the second heating module is in communication with the water injection pipeline.

[0037] In some implementations, the negative pressure air duct comprises a negative pressure device and a waste liquid pipeline, the negative pressure device is in communication with the waste liquid pipeline to make the waste liquid pipeline in a negative pressure state, and an outlet of the negative pressure air duct is connected with a waste liquid tank, and cleaning liquid in a cleaning tank of the cleaning base station is recovered into the waste liquid tank through the waste liquid pipeline under the action of the negative pressure device.

[0038] In some implementations, the negative pressure device is a negative pressure fan or an air pump arranged at an outlet of the waste liquid pipeline.

[0039] In a third aspect, the embodiments of the present application provide a cleaning method of a cleaning base station, applied to the cleaning base station of the first aspect, and the cleaning method comprises the following steps: reversing the roller brush of the cleaning device; cleaning a target area of the roller brush of the cleaning device, and a central angle a corresponding to the target area satisfies a relationship of 10°≤a≤180°.

[0040] In some implementations, the cleaning of the target area of the roller brush of the cleaning device comprises the following steps: a water injection stage: injecting cleaning liquid into a cleaning tank of the cleaning base station through a water supplement channel of the cleaning device; an immersion vibration cleaning stage: performing immersion cleaning on the target area through an ultrasonic generator of the cleaning base station; a kneading cleaning and waste discharge stage: the roller brush is rotated forward by an angle a, the roller brush is reversed by an angle a, and a≥360°; and the cleaning liquid in the cleaning tank is discharged through a negative pressure air duct of the cleaning device.

[0041] In some implementations, the ultrasonic generator has a first working mode and a second working mode; a vibration frequency of the ultrasonic generator in the first working mode is lower than a vibration frequency of the ultrasonic generator in the second working mode.

[0042] In some implementations, in the immersion vibration cleaning stage, the immersion cleaning on the target area comprises the following steps: in the first working mode, performing rough cleaning on the target area; in the second working mode, performing deep cleaning on the target area.

[0043] In some implementations, during the soaking vibration cleaning phase, the total soaking cleaning time t2 of the target area satisfies the relationship: t2=n*t1, where t1 is a single soaking cleaning time of the target area, and n is the number of times of soaking cleaning of the target area, n≥2.

[0044] In some implementations, the cleaning of the target area of the rolling brush of the cleaning device includes: The circumference of the rolling brush of the cleaning device is divided into m areas, each of which is a target area, and a target area corresponds to a central angle α=360° / m; where m≥2. The m target areas of the rolling brush are sequentially cleaned.

[0045] In some implementations, before the cleaning of the target area of the rolling brush of the cleaning device, the method further includes: Rotating the rolling brush, obtaining the dirtiness information of different positions of the rolling brush through a photoelectric sensor, and determining the target area of the rolling brush according to the dirtiness information.

[0046] In some implementations, the kneading cleaning and decontamination phase includes: The rolling brush is rotated forward by an angle α; The cleaning liquid in the cleaning tank is discharged by using the negative pressure air duct of the cleaning device; The rolling brush is rotated reversely by an angle α.

[0047] In some implementations, the kneading cleaning and decontamination phase includes: The rolling brush is rotated forward by an angle α; The rolling brush is rotated reversely by an angle α; The cleaning liquid in the cleaning tank is discharged by using the negative pressure air duct of the cleaning device.

[0048] In some implementations, after the cleaning of the target area of the rolling brush of the cleaning device, the method further includes: The target area and the cleaning tank are dried by using the drying module of the cleaning device.

[0049] The cleaning base station provided by the application has the beneficial effects that, compared with the related art, the cleaning device is placed on the cleaning base station to perform self-cleaning on the rolling brush, part of the structure of the rolling brush of the cleaning device is located in the cleaning tank, the ultrasonic generator located below the tank bottom wall of the cleaning tank is used to perform ultrasonic soaking cleaning on the rolling brush soaked in the cleaning liquid in the cleaning tank, meanwhile, the tank bottom wall of the cleaning tank is arranged to be inclined relative to the height direction of the base, in this way, under the condition that the length and volume of the semi-cylindrical cleaning tank in the related art are the same, the center of gravity of the cleaning tank is located behind in the advancing direction of the cleaning device, which indirectly reduces the distance between the axis of the rolling brush and the tank bottom wall located directly below the axis of the rolling brush in the height direction of the base, in this way, the capacity of the cleaning liquid in the cleaning tank is reduced or even unchanged, thereby improving the self-cleaning effect. In addition, part of the structure of the rolling brush is located in the cleaning tank, on the basis of this structure, the rolling brush can be segmented and soaked multiple times in combination with the rotation of the rolling brush, or a certain segment or each segment can be soaked multiple times, thereby making the self-cleaning effect of the rolling brush better. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0051] Figure 1 is an assembly structure schematic diagram of the cleaning device and the cleaning base station in one perspective view provided by the embodiments of the present application; Figure 2 is a cross-sectional schematic diagram of part of the assembly structure in Figure 1 ; Figure 3 is an enlarged view of the connection between the cleaning base station and the cleaning device in Figure 2 ; Figure 4 is a cross-sectional schematic diagram of the cleaning base station provided by the embodiments of the present application; Figure 5 is an exploded view of the cleaning base station in another perspective view provided by the embodiments of the present application; Figure 6 is an assembly structure schematic diagram of the cleaning base station in Figure 5 ; Figure 7 is an assembly structure schematic diagram of the cleaning device and the cleaning base station in another perspective view provided by the embodiments of the present application; Figure 8 is a cross-sectional schematic diagram of part of the assembly structure in Figure 7Assembled structure of the base of the cleaning device in Figure 9 is Figure 8 Exploded view of the base in Figure 10 is a flow chart of the cleaning method of the cleaning base provided by some embodiments of the present application; Figure 11 is Figure 10 Flow chart of step S230 in the cleaning device in Figure 12 is Figure 10 Flow chart of step S230 in another implementation manner in the cleaning device; Figure 13 is Figure 10 Flow chart of step S200 in some other implementation manners in the cleaning device.

[0052] Reference signs: 10, cleaning base; 11, base; 111, seat body; 112, upper cover; 113, avoiding opening; 114, pressing plate; 115, waterproof strip; 12, cleaning tank; 120, tank bottom wall; 121, first bottom wall; 122, second bottom wall; 123, first end wall; 124, second end wall; 13, ultrasonic generator; 130, vibration part; 14, drying module; 140, air outlet; 141, drying assembly; 142, drying channel; 20, cleaning device; 201, base; 202, wheel set; 203, handle; 21, water outlet; 22, roller brush; 221, roller; 222, bristles; 223, gap; 23, water supplement channel; 231, water tank; 232, water injection pipeline; 2320, cleaning outlet; 2321, water inlet section; 2322, water outlet section; 24, negative pressure air duct; 241, negative pressure device; 242, waste liquid pipeline; 243, waste liquid tank; 25, second heating module. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0054] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0055] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; 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.

[0056] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0057] With the improvement of people's living standards, cleaning devices 20 are increasingly applied to people's daily life. In addition to the traditional dust collection function, the cleaning device 20 also has a rolling brush for relative rotation with the ground to clean the ground. This type of cleaning device 20 is generally equipped with a cleaning base station 10, and the cleaning base 11 is provided with a cleaning tank 12, and the rolling brush can be immersed in the cleaning tank 12 containing water or cleaning liquid for cleaning. However, the cleaning base station 10 in the above related art can only solve some conventional dirt adhesion, but has poor self-cleaning ability for oil stains, which is manifested by the fact that after the product sweeps the kitchen or dining room, a large amount of oil stains on the rolling brush still adhere to the cleaning base station 10, which is obviously visible. Therefore, users usually need to remove the rolling brush from the cleaning device 20 for manual cleaning or directly replace the new rolling brush, resulting in a decrease in experience and a waste of accessories. In addition, the cleaning base station 10 in the related art occupies a relatively large space.

[0058] In order to solve the above problems, the present application provides a cleaning system. Referring to Figures 1 to 3 , the cleaning system includes a cleaning device 20, and the cleaning device 20 includes a housing and a rolling brush 22 disposed on the housing.

[0059] The above-mentioned rolling brush 22 is rotatably connected to the housing, so as to clean the ground or other cleaning surface. The axis of the rolling brush 22 refers to the axis around which the rolling brush rotates.

[0060] When the cleaning device 20 finishes cleaning the surface to be cleaned, dirt and the like will be attached to the roller brush 22, so the roller brush 22 of the cleaning device 20 needs to be cleaned. Usually, the cleaning base 11 is used to clean the roller brush 22 of the cleaning device 20.

[0061] Reference Figures 2 to 4 The cleaning base station 10 comprises a base 11 and an ultrasonic generator 13. The top wall of the base 11 is provided with a cleaning tank 12. The tank bottom wall 120 of the cleaning tank 12 is arranged to be inclined relative to the height direction of the base 11. In the advancing direction of the cleaning device 20, the lowest end of the tank bottom wall 120 of the cleaning tank 12 in the height direction of the base 11 is located on the rear side of the projection of the axis of the roller brush 22 on the height direction of the base 11. The ultrasonic generator 13 is arranged in the base 11. The ultrasonic generator 13 is located below the cleaning tank 12 and in contact with the tank bottom wall 120. When the cleaning device 20 is placed on the base 11, part of the structure of the roller brush 22 is located in the cleaning tank 12 of the cleaning base station 10 to clean the roller brush 22 of the cleaning device 20.

[0062] The height direction of the above-mentioned base 11 can be but is not limited to parallel to the height direction of the cleaning device 20. The advancing direction can be but is not limited to perpendicular to the height direction of the cleaning device 20.

[0063] The above-mentioned cleaning tank 12 corresponds to the position of the roller brush 22 of the cleaning device 20. The cleaning tank 12 is used to contain part of the roller brush 22 to clean the roller brush 22. The above-mentioned cleaning tank 12 can have a strip-shaped structure. The cleaning tank 12 can contain the roller brush 22 in the length direction. Along the circumferential direction of the roller brush 22, part of the structure of the roller brush 22 is located in the cleaning tank 12. When the cleaning device 20 is placed on the cleaning base station 10, part of the area in the circumferential direction of the roller brush 22 is located in the cleaning tank 12. That is, when there is cleaning liquid in the cleaning tank 12, the cleaning liquid will soak part of the area in the circumferential direction of the roller brush 22. Each time, only the area soaked in the cleaning liquid is cleaned by ultrasonic immersion cleaning through the vibration of the vibration part 130 of the ultrasonic generator 13.

[0064] The above-mentioned strip-shaped structure refers to a structure whose size in the cross section perpendicular to the length direction of the cleaning tank 12 is smaller than or much smaller than the length of the cleaning tank 12. The length direction of the cleaning tank 12 can be but is not limited to parallel to the axis of the roller brush 22.

[0065] The above-mentioned lowest end of the cleaning tank 12 is located on the tank bottom wall 120 of the cleaning tank 12. That is, if the opening of the cleaning tank 12 is parallel to the horizontal plane, the lowest end of the cleaning tank 12 refers to the position with the largest depth in the cleaning tank 12.

[0066] The bottom wall 120 of the cleaning tank 12 is inclined relative to the height direction of the base 11, forming the lowest end of the cleaning tank 12. The bottom wall 120 of the cleaning tank 12 can be composed of one or more planes, some or all of which are inclined relative to the height direction of the base 11; or the bottom wall 120 of the cleaning tank 12 can be composed of planes and curved surfaces, with the planes being inclined relative to the height direction of the base 11. Of course, since a curved surface can be considered to be composed of multiple planes, the bottom wall 120 of the cleaning tank 12 can also be composed of one or more curved surfaces.

[0067] With reference to Figure 3 and Figure 4 The bottom wall 120 of the cleaning tank 12 is inclined relative to the height direction of the base 11, forming the lowest end of the cleaning tank 12. The bottom wall 120 of the cleaning tank 12 can be composed of one or more planes, some or all of which are inclined relative to the height direction of the base 11; or the bottom wall 120 of the cleaning tank 12 can be composed of planes and curved surfaces, with the planes being inclined relative to the height direction of the base 11. Of course, since a curved surface can be considered to be composed of multiple planes, the bottom wall 120 of the cleaning tank 12 can also be composed of one or more curved surfaces. Figure 3 Figure 4 The bottom wall 120 of the cleaning tank 12 is inclined relative to the height direction of the base 11, forming the lowest end of the cleaning tank 12. The bottom wall 120 of the cleaning tank 12 can be composed of one or more planes, some or all of which are inclined relative to the height direction of the base 11; or the bottom wall 120 of the cleaning tank 12 can be composed of planes and curved surfaces, with the planes being inclined relative to the height direction of the base 11. Of course, since a curved surface can be considered to be composed of multiple planes, the bottom wall 120 of the cleaning tank 12 can also be composed of one or more curved surfaces.

[0068] The ultrasonic generator 13, also commonly known as an ultrasonic power supply or ultrasonic generator, is the "brain" and "heart" of the ultrasonic system. Its core function is to convert ordinary power (e.g., 220V 50Hz AC power) into a high-frequency AC signal that matches the ultrasonic transducer, thereby driving the transducer to work. That is, the electrical energy is converted into mechanical vibration (ultrasonic waves), i.e., the vibration part 130. By locating the vibration part 130 below the cleaning tank 12, that is, the vibration part 130 can be in close contact with the cleaning tank 12, the vibration of the vibration part 130 causes the cleaning tank 12 to vibrate, thereby ultrasonically immersing and cleaning the roll brush 22 immersed in the cleaning liquid.

[0069] ​The application sets the cleaning tank 12 on the top and bottom of the base 11 of the cleaning base station 10. When the cleaning device 20 is placed on the cleaning base station 10 to perform self-cleaning on the roller brush 22, the partial structure of the roller brush 22 of the cleaning device 20 is located in the cleaning tank 12. The ultrasonic generator 13 located below the tank bottom wall 120 of the cleaning tank 12 can be used to perform ultrasonic immersion cleaning on the roller brush 22 immersed in the cleaning liquid in the cleaning tank. At the same time, the tank bottom wall 120 of the cleaning tank 12 is inclined relative to the height direction of the base 11. In this way, under the condition that the length and volume of the semi-cylindrical cleaning tank 12 in the related art are the same, the cleaning base station 10 of the application can make the center of gravity of the cleaning tank 12 located behind in the advancing direction of the cleaning device 20, thereby indirectly reducing the distance between the axis of the roller brush 22 and the tank bottom wall 120 located directly below the axis of the roller brush 22 in the height direction of the base 11. In this way, the capacity of the cleaning liquid in the cleaning tank 12 is reduced or even unchanged, thereby improving the self-cleaning effect. In addition, the partial structure of the roller brush 22 is located in the cleaning tank 12. Based on this structure, the roller brush 22 can be segmented and immersed multiple times in combination with the rotation of the roller brush 22. Each segment can also be immersed multiple times, thereby improving the self-cleaning effect of the roller brush 22.

[0070] It should be noted that in the design process of the cleaning tank 12, in addition to the length of the cleaning tank 12 being greater than the length of the roller brush 22, the depth of the cleaning tank 12 also needs to be determined according to the circumferential dimension of the roller brush 22.

[0071] In one of the possible implementations, the roller brush 22 can include a roller 221 and bristles 222 arranged on the roller 221. When the roller brush 22 is located in the cleaning tank 12, the maximum depth of the roller brush 22 in the height direction of the base 11 is greater than half the length of the bristles 222, and the maximum depth is less than or equal to the length of the bristles 222. In this way, the bristles 222 of the roller brush 22 can be fully cleaned. At the same time, in the design process of the cleaning tank 12, the depth of the cleaning tank 12 is referenced to the length of the bristles 222, thereby optimizing the design of the cleaning tank 12.

[0072] In addition, the outermost side of the roller brush 22 can be in contact with the bottom wall 120 of the cleaning tank 12 when the roller brush 22 is located in the cleaning tank 12. In this way, the roller brush 22 can be located in the cleaning tank 12 as much as possible, which is conducive to thoroughly cleaning part of the roller brush 22. Of course, there can also be a gap 223 between the outermost side of the roller brush 22 and the bottom wall 120 of the cleaning tank 12 when the roller brush 22 is located in the cleaning tank 12. That is, there is a gap 223 between the outermost side of the bristles 222 and the bottom wall 120 of the cleaning tank 12. The gap 223 is reserved so that after the ultrasonic immersion cleaning of the roller brush 22 is completed, the air blown out of the air outlet 140 of the drying module 14 can pass through the gap 223 when the air is blown out of the air outlet 140 of the drying module 14, so that the roller brush 22 and the cleaning tank 12 are dried at the same time, improving the drying efficiency. Of course, when the outermost side of the bristles 222 is in contact with the bottom wall 120 of the cleaning tank 12, the air blown out of the air outlet 140 of the drying module 14 can also pass through the gap between the bristles 222 on the roller brush 22, so that the roller brush 22 and the cleaning tank 12 are dried. The drying module 14 will be described in detail later.

[0073] The structure of the cleaning tank 12 will be described in detail below.

[0074] Reference Figures 2 to 3 In this embodiment, the length direction of the cleaning tank 12 is parallel to the axis of the roller brush; the cleaning tank 12 includes a first end wall 123, a second end wall 124, and a bottom wall 120 connected between the first end wall 123 and the second end wall 124, and the depth between the opening of the cleaning tank 12 and the bottom wall 120 increases first and then decreases in the forward direction.

[0075] The first end wall 123 and the second end wall 124 refer to the two side walls of the cleaning tank 12 in the length direction of the cleaning tank 12.

[0076] The first end wall 123, the second end wall 124, and the bottom wall 120 can be but are not limited to an integral structure.

[0077] The length direction of the cleaning tank 12, the forward direction, and the height direction of the base 11 are perpendicular to each other.

[0078] The depth between the opening of the cleaning tank 12 and the bottom wall 120 of the cleaning tank 12 increases first and then decreases in the forward direction. In this way, when the waste liquid in the cleaning tank 12 decreases, not only is the residue of the waste liquid on the tank wall of the cleaning tank 12 further reduced, but the waste liquid can also flow from both sides of the forward direction to the bottom end of the cleaning tank 12, so that the liquid level of the waste liquid slowly decreases, reducing the probability of the waste liquid splashing outside the cleaning tank 12.

[0079] Reference Figure 4In one implementation, the groove bottom wall 120 includes a first bottom wall 121 and a second bottom wall 122, the first bottom wall 121 is a plane, the second bottom wall 122 is a plane, the first bottom wall 121 is arranged obliquely relative to the height direction of the base 11, the second bottom wall 122 is arranged obliquely relative to the height direction of the base 11, the second bottom wall 122 is connected to the rear side of the first bottom wall 121 in the advancing direction, the included angle between the first bottom wall 121 and the second bottom wall 122 is obtuse, the edge line formed between the first bottom wall 121 and the second bottom wall 122 is the lowest end of the groove bottom wall 120, and the lowest end is parallel to the length direction of the cleaning tank 12. That is, in the cross section perpendicular to the length direction of the cleaning tank 12, the cross-sectional profile of the cleaning tank 12 is triangular, the groove opening of the cleaning tank 12 forms the base of the triangle, and the first bottom wall 121 and the second bottom wall 122 form two waists of the triangle.

[0080] The first bottom wall 121 and the second bottom wall 122 described above can be but are not limited to an integral structure.

[0081] The length of the first bottom wall 121 is greater than or equal to the length of the second bottom wall 122.

[0082] By arranging the first bottom wall 121 and the second bottom wall 122 as planes, the structure of the cleaning tank 12 is simplified, and processing is facilitated.

[0083] In another implementation, a third bottom wall (not shown in the figure) is further connected between the first bottom wall 121 and the second bottom wall 122, the included angle between the third bottom wall and the first bottom wall 121 is obtuse, and the included angle between the third bottom wall and the second bottom wall 122 is obtuse. That is, in the cross section perpendicular to the length direction of the cleaning tank 12, the cross-sectional profile of the cleaning tank 12 is trapezoidal, the groove opening of the cleaning tank 12 forms the lower base of the trapezoid, the third bottom wall forms the upper base of the trapezoid, and the first bottom wall 121 and the second bottom wall 122 form two waists of the trapezoid.

[0084] The first bottom wall 121, the second bottom wall 122, and the third bottom wall described above can be but are not limited to an integral structure.

[0085] The third bottom wall described above can be but is not limited to perpendicular to the height direction of the base 11.

[0086] The third bottom wall described above can be a plane, the third bottom wall is arranged obliquely relative to the height direction of the base 11, and the edge between the third bottom wall and the second bottom wall 122 is the lowest end of the groove bottom wall 120; or the third bottom wall can also be a curved surface.

[0087] In the case that the length of the cleaning tank 12 is the same as the length of the bottom end of the cleaning tank 12 in the embodiment in which the depth of the bottom end of the cleaning tank 12 is the same as the depth of the bottom end of the cleaning tank 12 in the above-mentioned embodiment in which the cross-sectional shape of the cleaning tank 12 is triangular, by designing the cross-sectional shape of the cleaning tank 12 to be trapezoidal, the volume of the cleaning tank 12 can be increased.

[0088] With reference to Figure 4 , the top end surface of the vibration portion 130 is in contact with the tank bottom wall 120. That is, the axis of the vibration portion 130 is perpendicular to the tank bottom wall 120. In this way, the contact area of the vibration portion 130 with the cleaning tank 12 is increased, and the energy transmission efficiency is improved.

[0089] The intersection of the axis of the above-mentioned vibration portion 130 with the tank bottom wall 120 can be located in the front side of the advancing direction of the projection of the roller brush 22 on the projection of the base 11 in the height direction of the base 11. That is, with reference to Figure 3 , the intersection of the axis of the vibration portion 130 with the tank bottom wall 120, i.e., the intersection of the axis of the vibration portion 130 with the tank bottom wall 120 in the plane perpendicular to the axial direction of the roller brush 22, can be located in the lower left of the axis of the roller brush 22. Figure 3 and Figure 4 Under the perspective view, it is located in the lower left of the axis of the roller brush 22.

[0090] It should be noted that the top end surface of the vibration portion 130 can be in contact with the first bottom wall 121, i.e., tightly attached to the first bottom wall 121, or the top end surface of the vibration portion 130 can be in contact with the second bottom wall 122, i.e., tightly attached to the second bottom wall 122, or the vibration portion 130 can be tightly attached to the third bottom wall. Regardless of which wall of the tank bottom wall 120 the vibration portion 130 is tightly attached to, the axis of the vibration portion 130 is perpendicular to the corresponding wall on which the vibration portion 130 is arranged, so that the vibration portion 130 is tightly attached to the tank bottom wall 120.

[0091] The above-mentioned ultrasonic generator 13 can only include a transducer, and the output end of the transducer is the above-mentioned vibration portion 130. Alternatively, the ultrasonic generator 13 can include a transducer and an amplitude transformer (not shown in the figure), and the amplitude transformer is connected to the output end of the transducer to form the vibration portion 130.

[0092] The above-mentioned transducer can be a piezoelectric transducer, or the transducer can be a magnetostrictive transducer.

[0093] The above-mentioned amplitude transformer is also called an ultrasonic concentrator or an amplitude transformer. Its core functions are two: one is to amplify the amplitude: the mechanical vibration amplitude generated by the transducer itself is very small (usually only a few microns), which cannot meet the requirements of most industrial applications. The amplitude transformer can amplify this amplitude through its specific geometry, usually by 2-20 times; the second is to transmit energy: it serves as a transmission channel for mechanical vibration, efficiently concentrates and transmits the ultrasonic wave energy generated by the transducer to the tool head at the end, and then acts on the work object.

[0094] By connecting the amplitude rod at the output end of the transducer, the vibration of the output end of the transducer is amplified and transmitted, thereby further improving the energy transmission efficiency.

[0095] The working mode of the ultrasonic generator 13 can include a first working mode and a second working mode, and the vibration frequency of the ultrasonic generator 13 in the first working mode is lower than the vibration frequency of the ultrasonic generator 13 in the second working mode. When the ultrasonic generator 13 is in the first working mode, the vibration intensity of the vibration part 130 is relatively large, and the penetration force is relatively weak, which is suitable for rough cleaning of the cleaning part; when the ultrasonic generator 13 is in the second working mode, the vibration intensity of the vibration part 130 is relatively small, and the penetration force is relatively strong, which is suitable for deep cleaning of the cleaning part.

[0096] In this way, when the cleaning part is cleaned, the first working mode and the second working mode can be selected in turn to soak the same position for multiple times, or the first working mode is selected for rough cleaning of part of the area of the roller brush 22, and the second working mode is selected for deep cleaning of part of the area of the roller brush 22, so that the roller brush 22 is thoroughly cleaned.

[0097] The number of the ultrasonic generators 13 arranged on the base 11 can be one or more, and when the number of the ultrasonic generators 13 is multiple, the multiple ultrasonic generators 13 are arranged along the length direction of the cleaning tank 12.

[0098] The multiple ultrasonic generators 13 can be but not limited to arranged at equal intervals along the length direction of the cleaning tank 12.

[0099] The arrangement of the multiple ultrasonic generators 13 not only enables the cleaning liquid in the cleaning tank 12 to vibrate sufficiently, but also enables the vibration energy to be uniformly distributed, so that the cleaning effect is relatively good.

[0100] It should be noted that the working mode of each ultrasonic generator 13 in the multiple ultrasonic generators 13 described above can include the first working mode and the second working mode, or a part of the number of ultrasonic generators 13 includes the first working mode and the second working mode, and a part of the number of ultrasonic generators 13 includes the first working mode or the second working mode; or the working mode of each ultrasonic generator 13 only includes one kind of working mode, and all the number of ultrasonic generators 13 includes the ultrasonic generator 13 with the first working mode and the ultrasonic generator 13 with the second working mode.

[0101] The cleaning base station 10 described above further includes a controller, and the controller is electrically connected with the ultrasonic generator 13, and the controller controls the corresponding ultrasonic generator 13 to select different working modes to soak the roller brush 22.

[0102] In some implementations, the cleaning tank 12 further comprises a tank side wall (not shown in the figure), which is planar and connected between the tank bottom wall 120 and the first end wall 123 and the second end wall 124. In this way, the main depth of the cleaning tank 12 can be determined by reasonably selecting the depth of the tank side wall in the height direction of the base 11, and then the bottommost depth can be determined by designing the shape of the tank bottom wall 120, thereby improving the flexibility of the design of the cleaning tank 12 and the wide range of applications.

[0103] It should be noted that the material of the cleaning tank 12 described above can be metal. The metal can be one of iron, copper, aluminum, etc., and the metal can also be an alloy such as aluminum alloy, copper alloy, stainless steel, etc. The metal material cleaning tank 12 has relatively high strength, strong durability, and relatively strong thermal conductivity. Of course, in addition to metal, the cleaning tank 12 described above can also be an alloy such as aluminum alloy, or the cleaning tank 12 can also be plastic. In this way, it is beneficial to save costs.

[0104] In some implementations, the cleaning base 10 can further comprise a first heating module (not shown in the figure) disposed below the cleaning tank 12.

[0105] The first heating module described above can be disposed adjacent to the outside of the cleaning tank 12.

[0106] By disposing the first heating module in the base 11, the cleaning liquid in the cleaning tank 12 can be heated by the first heating module, so that the cleaning liquid is quickly and fully heated, which is beneficial to improve the cleaning strength and cleanliness of the rolling brush 22. At the same time, the first heating module is disposed below the cleaning tank 12, which not only makes the cleaning tank 12 relatively close to the first heating module and shortens the pipeline between the first heating module and the cleaning tank 12, but also reasonably utilizes the space below the cleaning tank 12, thereby reducing the occupied space of the base 11.

[0107] It should be noted that if the cleaning device 20 uses the water replenishment channel 23 to inject hot cleaning liquid into the cleaning tank 12, the first heating module can also not be disposed in the base 11.

[0108] The structure of the base 11 will be described below.

[0109] Reference Figures 4 to 5 In the present embodiment, the base 11 comprises a seat body 111 and an upper cover 112, the upper cover 112 is disposed on the seat body 111, and the cleaning tank 12 is disposed on the upper cover 112.

[0110] The cleaning tank 12 can be integrally formed with the upper cover 112. In this way, the strength of the cleaning tank 12 is improved, and the structure and manufacturing process of the base 11 are simplified. Of course, the cleaning tank 12 can also be detachably connected with the upper cover 112. In this way, the cleaning tank 12 can be easily detached for cleaning.

[0111] Referring to Figures 4 to 5 In one implementation, the upper cover 112 is provided with a clearance 113, and the cleaning tank 12 is arranged in the clearance 113, and the peripheral edge of the opening of the cleaning tank 12 is stopped at the clearance 113. That is, the peripheral edge of the opening of the cleaning tank 12 overlaps the edge of the clearance 113, so that the main body of the cleaning tank 12 is fixed in the clearance 113. The cleaning tank 12 can be fixed in the clearance 113 by means of gluing, screwing or clamping.

[0112] In this way, the cleaning tank 12 is arranged in the shell, so that the space utilization in the base 11 is improved, and the occupied space of the base 11 is reduced.

[0113] Referring to Figures 4 to 5 In one implementation, the upper cover 112 is connected with a pressing plate 114, and the cleaning tank 12 is detachably connected with the upper cover 112 through the pressing plate 114.

[0114] The pressing plate 114 can be detachably connected with the upper cover 112, and the pressing plate 114 is fixedly connected with the cleaning tank 12, so that the cleaning tank 12 is detachably connected with the upper cover 112 through the pressing plate 114. The detachable connection can be one or both of screwing and clamping.

[0115] The pressing plate 114 is arranged to ensure that the cleaning tank 12 is firmly connected with the upper cover 112 and can be detached.

[0116] Referring to Figures 4 to 5 In some implementations, the clearance 113 is provided with a waterproof strip 115, and the waterproof strip 115 is wrapped between the opening of the cleaning tank 12 and the clearance 113.

[0117] The waterproof strip 115 can be, but is not limited to, a sealing ring or an O-ring.

[0118] The waterproof strip 115 is arranged to improve the sealing between the shell and the cleaning tank 12, reduce the probability of the cleaning liquid in the cleaning tank 12 flowing into the base 11 through the gap between the shell and the cleaning tank 12, and improve the sealing and waterproof performance of the base 11.

[0119] Referring to Figures 4 to 5In some implementations, the cleaning base station 10 further comprises a drying module 14, the drying module 14 comprising a drying assembly 141 arranged in the base 11 and a drying channel 142, an air inlet of the drying channel 142 being connected to the drying assembly 141, the air outlet 140 of the drying assembly 141 and the drying channel 142 being respectively located on two sides of the cleaning tank 12 along the advancing direction, the air outlet 140 of the drying channel 142 being located above the cleaning tank 12 and facing the cleaning tank 12.

[0120] The drying module 14 described above is electrically connected to the controller, and the controller controls the drying module 14 to blow air to the cleaning tank 12 to accelerate the evaporation of the cleaning liquid.

[0121] The ultrasonic generator and the drying module 14 described above are combined to kill microorganisms and avoid the spread of odors and bacteria.

[0122] Through the arrangement of the drying module 14, the roll brush 22 can be dried or dried after being soaked and cleaned, so as to accelerate the evaporation of the cleaning liquid in the cleaning tank 12 and the roll brush 22, which is beneficial to keep the cleaning tank 12 clean and beneficial to dry the roll brush 22, thereby prolonging the service life of the roll brush 22 and improving the cleaning efficiency of the cleaning base station 10 for cleaning the cleaning part.

[0123] Reference Figure 4 In the embodiment, the drying assembly 141 is located on one side of the cleaning tank 12 close to the inlet of the negative pressure air duct 24.

[0124] Through the above arrangement, when the air outlet 140 of the drying channel 142 is waterlogged, it will not directly affect the normal work of the drying assembly 141, thereby reducing the risk of the drying assembly 141, and further improving the reliability of the drying assembly 141. At the same time, by arranging the drying assembly 141 on one side of the cleaning tank 12 close to the inlet of the negative pressure air duct 24, the drying assembly 141, the cleaning tank 12 and the ultrasonic generator 13 are staggered in the advancing direction, so that the space in the base 11 can be fully utilized, thereby further reducing the overall space occupied by the base 11.

[0125] The structure of the cleaning device 20 will be described below.

[0126] Reference Figures 1 to 3The cleaning device 20 comprises a housing, a rolling brush 22, a water supplement channel 23 and a negative pressure air duct 24. The rolling brush 22 is rotatably connected to the housing. The water supplement channel 23 is arranged on the housing, and the water outlet of the water supplement channel 23 is located above the rolling brush 22. The negative pressure air duct 24 is arranged on the housing, and the inlet of the negative pressure air duct 24 is located above the rolling brush 22. The water outlet of the water supplement channel 23 and the inlet of the negative pressure air duct 24 are located on both sides of the rolling brush 22 along the advancing direction. The water supplement channel 23 comprises a water tank 231 arranged on the housing and a water injection pipeline 232. One end of the water injection pipeline 232 is in communication with the water tank 231, and the other end of the water injection pipeline 232 is the water outlet of the water supplement channel 23. The axial direction of the rolling brush 22, the advancing direction and the height direction of the cleaning device 20 are perpendicular to each other.

[0127] The cleaning device 20 can be a handheld scrubber, and the housing is a general term for the shell of the cleaning device 20.

[0128] The water outlet of the water supplement channel 23 and the inlet of the negative pressure air duct 24 can be located on both sides of the rolling brush 22 along the advancing direction of the cleaning device 20. Generally, the water outlet of the water supplement channel 23 is located in front of the rolling brush 22 in the advancing direction. In this way, water flows out of the water outlet of the water supplement channel 23 under the action of gravity and falls on the surface to be cleaned, so as to wet the surface to be cleaned and facilitate the cleaning of the surface to be cleaned by the rolling brush 22. The negative pressure air duct 24 is located behind the rolling brush 22 in the advancing direction, so as to recycle the dirt on the surface to be cleaned.

[0129] The cleaning system of the present application is characterized in that a cleaning tank 12 is arranged on the top of the base 11 of the cleaning base station 10, when the cleaning device 20 is placed on the cleaning base station 10, the part of the rolling brush 22 of the cleaning device 20 is located in the cleaning tank 12, and the cleaning device 20 itself can inject water or cleaning liquid into the cleaning tank 12 through the water supplement channel 23, so that the cleaning liquid falls into the cleaning tank 12 under the action of its own gravity, and on this basis, the vibration part 130 of the ultrasonic generator 13 close to the cleaning tank 12 is used to perform ultrasonic immersion cleaning on the part of the rolling brush 22 immersed in the cleaning liquid, and only part of the rolling brush 22, that is, a section of the rolling brush 22 is cleaned each time, so that the whole rolling brush 22 is cleaned by multiple immersion cleaning, and a certain section or each section can also be cleaned by multiple immersion cleaning, so that the rolling brush 22 is cleaned thoroughly; secondly, the part of the rolling brush 22 of the cleaning device 20 is located in the cleaning tank 12, which indirectly reduces the depth of the cleaning tank 12 compared with the cleaning tank 12 in the related art, thereby reducing the occupied space of the cleaning tank 12, and the bottom wall 120 of the cleaning tank 12 is arranged to be inclined relative to the height direction of the base 11, and the bottom end of the bottom wall 120 of the cleaning tank 12 is close to the inlet of the negative pressure air duct 24 of the cleaning device 20, so that the waste liquid after cleaning is recycled in time by the negative pressure air duct 24 of the cleaning device 20, and there is no need to arrange a waste liquid recycling channel in the cleaning base station 10, and the waste liquid is always concentrated at the bottom end during the waste liquid recycling process, which not only reduces the residue of the waste liquid and is beneficial to keeping the cleaning tank 12 clean, but also the cleaning liquid is injected again before each cleaning, so that clean cleaning liquid is used for each cleaning, thereby being beneficial to cleaning the rolling brush 22 thoroughly without manual secondary cleaning; in addition, there is no need to arrange a water injection circuit and a waste liquid recycling channel in the cleaning base station 10, which simplifies the structure of the cleaning base station and reduces the occupied space of the cleaning base station 10.

[0130] Reference Figures 1 to 3 The cleaning device 20 comprises a base 201, a wheel set 202 arranged on the base 201, and a handle 203 arranged on the base 201, the shell comprises the outer shell of the base 201 and the handle 203, the wheel set 202 is rotatably connected to the base 201 to provide power for the cleaning device 20, the rolling brush 22 is rotatably connected to the front end of the base 201, and the handle 203 is rotatably connected to the other end of the base 201. The cleaning device 20 usually further comprises a main machine arranged on the handle 203. The end of the handle 203 can be but is not limited to a handrail connected to the handle, which is convenient for holding. The handrail can be an integral structure with the handle.

[0131] The water supplement channel 23 can be arranged on the base 201, and is used for supplementing water to the roller brush 22, so as to clean the ground and the cleaning surface. The water supplement channel 23 is also used for supplementing cleaning liquid to the cleaning tank 12, so that the cleaning base station 10 does not need to be provided with a pipeline for supplementing cleaning liquid to the cleaning tank 12, the structure of the cleaning base station 10 is simplified, and the occupied space of the cleaning base station 10 is reduced.

[0132] With reference to Figure 2 The negative pressure air duct 24 comprises a negative pressure device 241 and a waste liquid pipeline 242. The negative pressure device 241 is in communication with the waste liquid pipeline 242, so that the waste liquid pipeline 242 is in a negative pressure state. The outlet of the negative pressure air duct 24 is connected with a waste liquid tank 243. The cleaning liquid in the cleaning tank 12 of the cleaning base station 10 is recovered to the waste liquid tank 243 under the action of the negative pressure device 241.

[0133] The negative pressure device 241 can be a negative pressure fan arranged at the outlet of the waste liquid pipeline 242. The waste liquid pipeline is in a negative pressure state under the action of the negative pressure device 241, so that the cleaning liquid in the cleaning tank 12 is recovered to the waste liquid tank 243 under the action of suction.

[0134] The negative pressure fan is also called an exhaust fan, an industrial exhaust fan or an air extractor, which is a ventilation equipment for forcibly discharging indoor air to outdoor by mechanical means, so as to form a negative pressure environment in the indoor.

[0135] Of course, the negative pressure device 241 can also be a gas pump. In this case, the negative pressure device 241 can also be arranged on the cleaning base station 10, which is not limited herein.

[0136] The waste liquid tank 243 is arranged in the cleaning device 20. Thus, the cleaning liquid in the cleaning tank 12 after each cleaning can be recovered to the waste liquid tank 243. After the overall cleaning of the roller brush 22 is completed, the waste liquid in the waste liquid tank 243 can be treated at one time.

[0137] With reference to Figures 2 to 3 The water supplement channel 23 can be arranged on the base 201, and is used for supplementing water to the roller brush 22, so as to clean the ground and the cleaning surface. The water supplement channel 23 is also used for supplementing cleaning liquid to the cleaning tank 12, so that the cleaning base station 10 does not need to be provided with a pipeline for supplementing cleaning liquid to the cleaning tank 12, the structure of the cleaning base station 10 is simplified, and the occupied space of the cleaning base station 10 is reduced.

[0138] The cleaning outlet 2320 can inject water to the ground or the rolling brush 22 when the cleaning part is working, so as to better clean the surface to be cleaned. Meanwhile, the cleaning outlet 2320 can also serve as another water outlet for injecting cleaning liquid into the cleaning tank 12.

[0139] The water outlet section 2322 extends along the circumference of the rolling brush 22, so that when the cleaning liquid in the water tank 231 flows through the water outlet section 2322, it flows slowly, avoiding the risk of splashing of the cleaning liquid due to too large change of drop in the vertical direction. Meanwhile, the two ends of the water outlet section 2322 are respectively the cleaning outlet 2320 and the water outlet of the water supplement channel 23, that is, there are two water outlets on the water outlet section 2322, so that the efficiency of injecting cleaning liquid into the cleaning tank 12 is improved.

[0140] Reference Figure 3 In some implementations, the cleaning device 20 further comprises a second heating module 25 arranged on the housing, and the second heating module 25 is in communication with the water injection pipeline 232.

[0141] The second heating module 25 can be in communication with the water outlet section 2322, but is not limited thereto.

[0142] The second heating module 25 can heat the cleaning liquid flowing through the water supplement channel 23, so that the cleaning liquid injected into the cleaning tank 12 is hot, which is beneficial to improve the cleaning strength of the cleaning part.

[0143] Reference Figure 9 The housing is provided with a plurality of water outlets 21, and the plurality of water outlets 21 are arranged below the water outlet of the water supplement channel 23 along the axial direction of the rolling brush 22.

[0144] By arranging the plurality of water outlets 21 below the water outlet of the water supplement channel 23 along the axial direction of the rolling brush 22, that is, the plurality of water outlets 21 are arranged along the axial direction of the rolling brush 22 and above the cleaning tank 12, so that the cleaning liquid or water can be injected into the cleaning tank 12 through the plurality of water outlets 21 at the same time, and the water or cleaning liquid falls into the cleaning tank 12 under the action of gravity, improving the injection efficiency of the cleaning liquid, and reducing the risk of splashing of the cleaning liquid outside the cleaning tank 12.

[0145] To solve the above problems, the embodiment of the present application further provides a cleaning method of the cleaning base station 10, referring to Figure 10 The cleaning method comprises the following steps. Step S100: The rolling brush 22 of the cleaning device 20 is reversed.

[0146] The rolling brush 22 is a rolling brush.

[0147] The reverse rotation of the rolling brush 22 refers to the direction opposite to the rotation direction of the rolling brush 22 during the operation of the rolling brush 22. Assuming that the rolling brush 22 rotates clockwise during the cleaning of the surface to be cleaned, the reverse rotation herein refers to the counterclockwise rotation of the rolling brush 22. The reverse rotation before the cleaning of the cleaning part helps to make the bristles 222 of the rolling brush stand up, avoids the bristles 222 sticking together to cause incomplete cleaning of the rolling brush 22, and facilitates the subsequent cleaning of the rolling brush 22.

[0148] Step S200: cleaning the target area of the rolling brush 22 of the cleaning device 20, and the central angle a corresponding to the target area satisfies the relationship: 10°≤a≤180°.

[0149] The target area refers to the area included by the central angle a corresponding to the rolling brush 22 along the circumferential direction, and the central angle a corresponding to the target area is a segment of 360°. That is, each time a segment of the rolling brush 22 is cleaned, the entire rolling brush 22 can be cleaned in segments in sequence, or the target area is first determined, and then the target area is cleaned.

[0150] Reference Figure 10 In this embodiment, the target area of the rolling brush 22 of the cleaning device 20 is cleaned, including: Step S210: water injection stage: injecting cleaning liquid into the cleaning tank 12 of the cleaning base station 10 by using the water supplement channel 23 of the cleaning device 20.

[0151] The cleaning liquid is injected into the cleaning tank 12 to soak the target area in the cleaning liquid. This prepares for the subsequent cleaning of the target area.

[0152] Step S220: soaking and vibration cleaning stage: soaking and cleaning the target area by using the ultrasonic generator 13 of the cleaning base station 10.

[0153] In one implementation, the step S220 of cleaning the target area of the rolling brush 22 of the cleaning device 20 includes: The circumference of the rolling brush 22 of the cleaning device 20 is divided into m areas, each area is a target area, and the central angle a corresponding to one target area is a=360° / m; wherein m≥2; The m target areas of the rolling brush 22 are sequentially cleaned.

[0154] That is, when the rolling brush 22 is cleaned, the positions and quantities of the target areas are first determined, and then the m target areas of the rolling brush 22 are sequentially soaked and cleaned. In this way, the cleaning efficiency is improved.

[0155] It should be noted that, in the above-mentioned m target soaking cleaning of the rolling brush 22, each target area can be cleaned once or n times, or some of the m target areas can be cleaned once and some of the target areas can be cleaned multiple times, which is not limited here.

[0156] In this embodiment, after step S220, a first judgment step is further included; the total soaking time t2 of the target area soaking cleaning satisfies the relationship: t2=n*t1, wherein t1 is the single soaking time of the target area soaking cleaning; n is the number of soaking cleaning, n≥2.

[0157] The above-mentioned t2 is greater than or equal to t1. The above-mentioned first judgment step is executed by the controller through the program.

[0158] The above-mentioned t2 is the total soaking time of the target area soaking cleaning, and the controller determines the single soaking time of the target area soaking cleaning according to the total soaking time t2 of the target area soaking cleaning and the number n of the target area soaking cleaning, controls the ultrasonic generator to perform at least one soaking cleaning on the same target area, so that the target area is cleaned. When the target area is relatively dirty, the above-mentioned number n can also be set to clean the same target area n times, so that the target area is cleaned, and when t2 is less than t1, the above-mentioned steps S210 to S220 are repeated until t2 is equal to t1.

[0159] After the controller executes the above-mentioned first judgment step, the controller needs to control the rolling brush 22 to rotate forward β, and then perform a second judgment step, that is, judge the size relationship between t2 and t3 again, wherein t3 is the total soaking time of the target area soaking cleaning of the rolling brush 22, which is set in advance. If t2=t3, the steps after step S200 are performed, such as step S230 and step S300; if t2

[0160] It should be noted that the above-mentioned ultrasonic generator 13 can but not limited to include a first working mode and a second working mode; the vibration frequency of the ultrasonic generator 13 in the first working mode is lower than the vibration frequency of the ultrasonic generator 13 in the second working mode. The above-mentioned first working mode can also be called low frequency mode, and the vibration frequency of the first working mode can but not limited to be 28KHz, and the second working mode is called high frequency mode, and the vibration frequency of the second working mode can but not limited to be 40KHz.

[0161] In the above-mentioned soaking vibration cleaning stage, the target area is soaked and cleaned, including: In the first working mode, the target area is roughly cleaned; In the second working mode, the target area is subjected to deep cleaning.

[0162] The user can control the controller to sequentially perform soaking cleaning and rubbing cleaning on the same target area in the first working mode and the second working mode respectively; or, the user can sequentially perform soaking cleaning and rubbing cleaning on part of the target areas in the first working mode and the second working mode respectively; or, the user can first sequentially perform soaking cleaning on all the target areas in the first working mode, and then sequentially perform secondary soaking cleaning on all the target areas in the second working mode, or perform secondary soaking cleaning on part of the target areas.

[0163] After the step S220, there is further a step S230: rubbing cleaning and pollution discharge stage: the roller brush 22 is positively rotated by an angle α, and is reversely rotated by the angle α, and α≥360°; the cleaning liquid in the cleaning tank 12 is discharged by the negative pressure air duct 24 of the cleaning device 20.

[0164] After the soaking cleaning of the roller brush 22, the rubbing cleaning is performed in the bidirectional rotation manner, so that the cleaning of the target area is more thorough, and the roller brush 22 returns to the original target position after the bidirectional rubbing cleaning is completed, and the cleaning liquid is discharged, that is, the waste liquid after cleaning can be discharged in time after a target area is cleaned, and clean cleaning liquid can be injected before the next target area is cleaned, so that each target area of the roller brush 22 can be thoroughly cleaned. In addition, the angle of each positive and reverse rotation is greater than 360°, that is, the bidirectional rubbing cleaning stage can rub and clean the whole roller brush 22 after the soaking cleaning of each target area, so that the cleaning liquid after the soaking cleaning and the rubbing cleaning of each target area is cleaner than the cleaning liquid after the last cleaning, and the cleaning liquid is cleaner and cleaner, so that the user can directly judge whether the roller brush 22 is thoroughly cleaned by judging the cleanliness of the cleaning liquid.

[0165] Reference Figure 11 In one implementation, the step S230: rubbing cleaning and pollution discharge stage includes: Step S231a: the roller brush 22 is positively rotated by an angle α; Step S231b: the cleaning liquid in the cleaning tank 12 is discharged by the negative pressure air duct 24 of the cleaning device 20; Step S231c: the roller brush 22 is reversely rotated by the angle α.

[0166] Through the steps S231a to S231c, the rubbing cleaning and pollution discharge of the target area are completed, and the roller brush 22 is rotated to the position before the rubbing cleaning, so as to perform soaking cleaning on the next target area.

[0167] Of course, referenceFigure 12 In another implementation, the step S230 of kneading cleaning and sewage discharge includes: The step S232a of rotating the roller brush 22 forward by an angle a; The step S232b of rotating the roller brush 22 backward by the angle a; The step S232c of discharging the cleaning liquid in the cleaning tank 12 by using the negative pressure air duct 24 of the cleaning device 20.

[0168] Through the steps S232a to S232c, the kneading cleaning and sewage discharge of the target area can be completed, and before the step S232c, i.e., the sewage discharge, the roller brush 22 is rotated backward by the angle a, so that the roller brush 22 is rotated to the position before the kneading cleaning, thereby facilitating the soaking cleaning of the next target area. In addition, the roller brush 22 is subjected to secondary kneading cleaning during the backward rotation, so that the cleaning of the roller brush 22 is more thorough.

[0169] Reference Figure 10 In the embodiment, after the step S200 of cleaning the target area of the roller brush 22 of the cleaning device 20, the following steps are further included: The step S300 of drying the target area and the cleaning tank 12 by using the drying module 14 of the cleaning device 20.

[0170] The drying module 14 includes a drying assembly 141 arranged in the base 11 and a drying channel 142. The air inlet of the drying channel 142 is connected with the drying assembly 141. The air outlets 140 of the drying assembly 141 and the drying channel 142 are respectively arranged on the two sides of the cleaning tank 12 along the forward direction. The air outlet 140 of the drying channel 142 is arranged above the cleaning tank 12 and faces the cleaning tank 12 by using the drying module 14. The air outlet 140 of the drying assembly 141 of the drying module 14 blows air to the cleaning tank 12 and the roller brush 22, so as to accelerate the evaporation of the cleaning liquid on the target area and the cleaning tank 12, thereby drying the target area and the cleaning tank 12.

[0171] Especially when the gap 223 exists between the roller brush 22 and the tank bottom wall 120 of the cleaning tank 12, the air blown out of the air outlet 140 of the drying module 14 can pass through the gap 223, so that the roller brush 22 and the cleaning tank 12 are dried at the same time, thereby improving the drying efficiency.

[0172] Of course, the outermost circle of the roller brush 22 can also be in contact with the tank bottom wall 120 of the cleaning tank 12, so that the air blown out of the air outlet 140 of the drying module 14 can also pass through the gaps between the bristles 222 of the roller brush 22, thereby drying the roller brush 22 and the cleaning tank 12.

[0173] It should be noted that the above step S300 is not required to be performed after each execution of the above step S200, and can be performed only once after the final execution of step S200, that is, after the execution of step S220 and step S230 on all target areas in turn, that is, after the completion of soaking cleaning and rubbing cleaning on all target areas of the roller brush 22. Alternatively, the above step S300 can also be performed once after the execution of step S220 and step S230 on the same target area, which is not specifically limited here.

[0174] Reference Figure 13 In some implementations, the cleaning system further comprises a photoelectric sensor, which is electrically connected with the controller. After the above step S220, step S240 is further included: the controller controls the rotation of the roller brush 22, and obtains the dirtiness information at different positions of the roller brush 22 through the photoelectric sensor. The controller determines the dirtiest position through the dirtiness information obtained by the photoelectric sensor, and determines the target area of the roller brush 22 according to the dirtiness information.

[0175] That is, after the soaking cleaning of the m target areas of the roller brush 22 as a whole, the most dirty area of the roller brush 22 is subjected to secondary soaking cleaning through the photoelectric sensor. In this way, the local area of the roller brush 22 can be subjected to multiple soaking cleanings, so that the cleaning of the roller brush 22 is more thorough.

[0176] Of course, the above step S230 can be arranged after the above step S240, or can be arranged before the above step S210, that is, the target area of the roller brush 22 is determined before the soaking cleaning of another target area. In this way, the most dirty target area of the roller brush 22 is subjected to soaking cleaning each time, so that the cleaning liquid after soaking cleaning is cleaner as the process of soaking cleaning of the subsequent target area to be soaked goes on.

[0177] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A clean base station, characterized in that, The cleaning base station is used for self-cleaning of the roller brush (22) of the cleaning device (20), wherein the cleaning base station (10) includes: The base (11) has a cleaning groove (12) on its top wall. The bottom wall (120) of the cleaning groove (12) is inclined relative to the height direction of the base (11). In the forward direction of the cleaning device (20), the bottom end of the bottom wall (120) of the groove in the height direction of the base (11) is located behind the axis of the roller brush (22) in the height direction of the base (11) in the orthogonal projection of the roller brush (22) in the height direction of the base (11). An ultrasonic generator (13) is disposed in the base (11). The ultrasonic generator (13) is located below the bottom wall (120) of the tank and is in contact with the bottom wall (120) of the tank. The roller brush (22) is partially located in the cleaning tank (12) of the cleaning base station (10) to perform self-cleaning of the roller brush (22) of the cleaning device (20).

2. The clean base station according to claim 1, characterized in that, The cleaning tank (12) has a long strip structure. The length direction of the cleaning tank (12) is parallel to the axis of the roller brush (22). The length direction of the cleaning tank (12), the forward direction and the height direction of the base (11) are perpendicular to each other. The cleaning tank (12) includes a first end wall (123), a second end wall (124) and a bottom wall (120) connected between the first end wall (123) and the second end wall (124). Along the forward direction, the depth between the opening of the cleaning tank (12) and the bottom wall (120) first increases and then decreases.

3. The clean base station according to claim 2, characterized in that, The bottom wall (120) of the tank includes a first bottom wall (121) and a second bottom wall (122). The first bottom wall (121) is a plane and the second bottom wall (122) is a plane. The first bottom wall (121) is inclined relative to the height direction of the base (11), and the second bottom wall (122) is inclined relative to the height direction of the base (11). The second bottom wall (122) is connected to the rear side of the first bottom wall (121) in the forward direction. The included angle formed between the first bottom wall (121) and the second bottom wall (122) is an obtuse angle. The ridge line formed between the first bottom wall (121) and the second bottom wall (122) is the bottom end of the cleaning tank (12). The bottom end is parallel to the length direction of the cleaning tank (12).

4. The clean base station according to claim 3, characterized in that, The bottom end is parallel to the length direction of the cleaning tank (12).

5. The clean base station according to claim 3, characterized in that, A third bottom wall is connected between the first bottom wall (121) and the second bottom wall (122). The angle formed between the third bottom wall and the first bottom wall (121) is an obtuse angle.

6. The clean base station according to claim 5, characterized in that, The third bottom wall is a plane, and the third bottom wall is inclined relative to the height direction of the base (11). The edge formed between the third bottom wall and the second bottom wall (122) is the bottom end of the groove bottom wall (120). Alternatively, the third bottom wall may be a curved surface.

7. The clean base station according to any one of claims 3-6, characterized in that, The cleaning tank (12) also includes a tank sidewall, which is a plane and is connected between the bottom wall (120) and the first end wall (123) and the second end wall (124).

8. The clean base station according to any one of claims 1-6, characterized in that, The ultrasonic generator (13) includes a vibrating part (130), the top surface of which is in contact with the bottom wall (120) of the tank.

9. The clean base station according to claim 8, characterized in that, The intersection of the axis of the vibrating part (130) and the bottom wall (120) of the groove is located on the front side of the orthogonal projection of the roller brush (22) on the base (11) along its height direction in the forward direction.

10. The clean base station according to any one of claims 3-6, characterized in that, The top surface of the vibrating part (130) is in contact with the first bottom wall (121); and / or, the top surface of the vibrating part (130) is in contact with the second bottom wall (122).

11. The clean base station according to any one of claims 1-10, characterized in that, The base (11) includes a seat body (111) and a top cover (112), the top cover (112) is placed on the seat body (111), and the top cover (112) is provided with the cleaning groove (12).

12. The clean base station according to claim 11, characterized in that, The top cover (112) is provided with a clearance opening (113), and the cleaning tank (12) is disposed in the clearance opening (113). The periphery of the opening of the cleaning tank (12) is blocked at the clearance opening (113).

13. The clean base station according to claim 12, characterized in that, The upper cover (112) is connected to a pressure plate (114), and the cleaning tank (12) is detachably connected to the upper cover (112) through the pressure plate (114).

14. The clean base station according to claim 12 or 13, characterized in that, The clearance opening (113) is provided with a waterproof strip (115), which covers the space between the opening of the cleaning tank (12) and the clearance opening (113).

15. The clean base station according to any one of claims 1-14, characterized in that, The cleaning base station (10) also includes a first heating module disposed on the base (11), the first heating module being located below the cleaning tank (12).

16. The clean base station according to any one of claims 1-14, characterized in that, The cleaning base station (10) also includes a drying module (14), which includes a drying component (141) and a drying channel (142) disposed in the base (11). The air inlet of the drying channel (142) is connected to the drying component (141). The air outlets (140) of the drying component (141) and the drying channel (142) are respectively located on both sides of the cleaning tank (12) along the forward direction. The air outlet (140) of the drying channel (142) is located above the cleaning tank (12) and faces the cleaning tank (12).

17. The clean base station according to claim 16, characterized in that, The drying assembly (141) is located on the side of the cleaning tank (12) near the inlet of the negative pressure air duct (24).

18. A cleaning system, characterized in that, include: Cleaning device (20), including roller brush (22); Clean base station (10) according to any one of claims 1-17; The roller brush (22) is partially located in the cleaning tank (12) of the cleaning base station (10) so that the roller brush (22) of the cleaning device (20) can be self-cleaned by the cleaning base station (10).

19. The cleaning system according to claim 18, characterized in that, The cleaning device (20) includes: The housing, wherein the roller brush (22) is rotatably connected to the housing; A water supply channel (23) is provided on the housing, and the outlet of the water supply channel (23) is located above the roller brush (22); A negative pressure air duct (24) is provided on the housing. The inlet of the negative pressure air duct (24) is located above the roller brush (22). The outlet of the water supply channel (23) is located in front of the roller brush (22) in the forward direction of the cleaning device (20). The inlet of the negative pressure air duct (24) is located in rear of the roller brush (22) in the forward direction of the cleaning device (20).

20. The cleaning system according to claim 19, characterized in that, The clean base station (10) includes a base (11), and a cleaning tank (12) is provided on the top wall of the base (11). The bottom wall (120) of the cleaning tank (12) is inclined relative to the height direction of the base (11). The bottom end of the trough wall (120) in the height direction of the base (11) is located on the side near the inlet of the negative pressure air duct (24) in the forward direction of the cleaning device (20).

21. The cleaning system according to any one of claims 18-20, characterized in that, When the roller brush (22) is located in the cleaning tank (12), there is a gap (223) between the outermost part of the roller brush (22) and the bottom wall (120) of the tank.

22. The cleaning system according to any one of claims 18-20, characterized in that, The roller brush (22) includes a roller (221) and bristles (222) disposed on the roller (221). When the roller brush (22) is located in the cleaning tank (12), the maximum depth of the roller brush (22) in the height direction of the base (11) is greater than half the length of the bristles (222), and the maximum depth is less than or equal to the length of the bristles (222).

23. The cleaning system according to any one of claims 19-22, characterized in that, The housing is provided with a plurality of water outlet holes (210), which are arranged at intervals along the axis of the roller brush (22) below the water outlet of the water supply channel (23).

24. A cleaning method for a clean base station, applied to the cleaning system as described in any one of claims 18-23, characterized in that, The cleaning method includes: Receive operation instructions and enter self-cleaning mode; The cleaning device's roller brush is controlled to reverse at a first preset angle; The ultrasonic cleaner is controlled to clean the target area of ​​the cleaning device's roller brush, and the central angle α corresponding to the target area satisfies the relationship: 10°≤α≤180°.

25. The cleaning method according to claim 24, characterized in that, The cleaning of the target area of ​​the cleaning device's roller brush includes: Water injection stage: Cleaning fluid is injected into the cleaning tank of the cleaning base station using the water replenishment channel of the cleaning device; Immersion vibration cleaning stage: The target area is immersed and cleaned by using the ultrasonic generator of the cleaning base station to vibrate. The rubbing, cleaning, and waste removal stage: the roller brush rotates forward at an angle α, and the roller brush rotates backward at an angle α, where α ≥ 360°; the cleaning liquid located in the cleaning tank is discharged using the negative pressure air duct of the cleaning device.

26. The cleaning method according to claim 25, characterized in that, The ultrasonic generator has a first operating mode and a second operating mode. The vibration frequency of the ultrasonic generator in the first working mode is lower than the vibration frequency of the ultrasonic generator in the second working mode.

27. The cleaning method according to claim 26, characterized in that, In the soaking and vibration cleaning stage, the soaking and cleaning of the target area includes: In the first working mode, the target area is roughly washed; In the second working mode, the target area is deeply cleaned.

28. The cleaning method according to any one of claims 25-27, characterized in that, During the soaking and vibration cleaning stage, the total soaking time t2 for the target area satisfies the following formula: t2=n*t1, where t1 is the soaking time for a single soaking of the target area; n is the number of times the same target area is soaked and cleaned, and n≥2.

29. The cleaning method according to any one of claims 25-27, characterized in that, The cleaning of the target area of ​​the cleaning device's roller brush includes: Divide the circumference of the roller brush of the cleaning device into m regions, then each region is a target region, and the central angle α corresponding to a target region is 360° / m; where m≥2; The m target areas of the roller brush are cleaned sequentially.

30. The cleaning method according to any one of claims 25-28, characterized in that, Also includes: The roller brush is rotated, and the dirt level information at different positions of the roller brush is obtained through a photoelectric sensor. The target area of ​​the roller brush is determined based on the dirt level information.

31. The cleaning method according to any one of claims 25-28, characterized in that, The kneading, washing, and sewage removal stage includes: The rotation angle α of the roller brush; The cleaning fluid located in the cleaning tank is discharged using the negative pressure air duct of the cleaning device. The roller brush reverses at an angle α.

32. The cleaning method according to any one of claims 25-28, characterized in that, The kneading, washing, and sewage removal stage includes: The rotation angle α of the roller brush; The roller brush reverses at an angle α; The cleaning fluid located in the cleaning tank is discharged using the negative pressure air duct of the cleaning device.

33. The cleaning method according to any one of claims 24-29, characterized in that, After cleaning the target area of ​​the cleaning device's roller brush, the process further includes: The target area and the cleaning tank are dried using the drying module of the cleaning device.

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