Base components, cleaning system and self-cleaning method

Abstract

This invention relates to a base assembly, a cleaning system, and a self-cleaning device. The base assembly includes a base body and a charging terminal. The base body includes a cleaning tank and a support portion located outside the cleaning tank. The support portion supports the floor brush body of a cleaning device, and the cleaning tank accommodates the roller brush of the cleaning device. The charging terminal is located on the support portion and is used to charge the cleaning device. When the cleaning device is located on the base body, the charging terminal is located behind the cleaning tank along a first preset direction perpendicular to the roller brush axis. Along the first preset direction, the cleaning tank includes a front inner wall, a bottom wall, and a rear inner wall arranged sequentially from front to back. The height of the front inner wall is greater than the height of the bottom wall. When the roller brush is located inside the cleaning tank, the suction port of the floor brush body is located inside the cleaning tank, and there is a gap between the brush bristles and the rear inner wall, while also having interference contact with at least a portion of the front inner wall. This application can improve the cleaning effect of the inner wall of the cleaning tank and reduce the residue of dense, hard debris.

Description

Technical Field

[0001] This invention relates to the field of cleaning technology, and in particular to a base assembly, a cleaning system, and a self-cleaning method. Background Technology

[0002] As people's demands for home cleaning efficiency and hygiene increase, cleaning equipment with self-cleaning functions is becoming increasingly popular. Take floor scrubbers as an example; they are equipped with roller brushes that directly contact dirt. After cleaning, the floor scrubber needs to perform self-cleaning, drying, and charging operations on its base assembly.

[0003] During the self-cleaning process, the rotating roller brush agitates the liquid in the cleaning tank, and most of the debris is sucked away with the wastewater. However, some debris inevitably remains in the cleaning tank. For example, stains adhering to the inner wall surface of the cleaning tank, or dense, hard solid debris such as mud, sand, and small stones, which are difficult to be sucked away with the wastewater and remain. After long-term use, the amount of debris remaining on the base assembly increases, not only increasing the difficulty of cleaning but also potentially affecting the roller brush and its self-cleaning effect. In such cases, manual secondary cleaning of the base assembly is required, resulting in a poor user experience. Summary of the Invention

[0004] To address at least one technical problem raised in the background art, embodiments of this application provide a base assembly, a cleaning system, and a self-cleaning method.

[0005] To achieve the above objectives, the embodiments of this application provide the following technical solutions: A first aspect of this application provides a base assembly, the base assembly comprising: The base body includes a cleaning tank and a support portion located outside the cleaning tank. The support portion is used to support the floor brush body of the cleaning equipment, and the cleaning tank is used to accommodate the roller brush of the cleaning equipment. A charging terminal, located on the support portion, is used to charge the cleaning device; When the cleaning device is located on the base body, the charging terminal is located behind the cleaning tank along a first preset direction perpendicular to the axis of the roller brush. Along the first preset direction, the cleaning tank includes a front inner wall, a bottom wall, and a rear inner wall arranged sequentially from front to back; wherein, the height of the front inner wall is higher than the height of the bottom wall; when the roller brush is located in the cleaning tank, the suction port of the floor brush body is located in the cleaning tank, the bristles of the roller brush have a gap with the rear inner wall, and are in interference contact with at least a portion of the front inner wall.

[0006] After the cleaning equipment has finished cleaning the floor, it is placed on the base assembly with the roller brush inside the cleaning tank and the base body above the support. Because the brush bristles make interference contact with the inner front wall of the cleaning tank, the rotating roller brush repeatedly wipes the inner front wall during self-cleaning, reducing dirt adhesion. Furthermore, when the roller brush reverses direction, the aforementioned denser, harder debris has difficulty passing through the gap between the roller brush and the inner front wall and leaving the cleaning tank via the higher inner wall. Instead, it is swept backward towards the suction port by the roller brush during forward rotation, making it easier to suck up. When there is cleaning liquid in the cleaning tank, the wastewater surge generated by the rotating roller brush is mainly concentrated at the rear of the roller brush. This surge not only helps to carry denser, harder debris towards the suction port but also washes the bottom and rear walls of the cleaning tank, improving the overall cleaning effect of the inner wall of the cleaning tank.

[0007] For roller brushes, the bristles are fluffy and can be formed through flocking or weaving, for example, using nylon fibers, resulting in a soft texture. When the bristles make interference contact with the front inner wall, although they are compressed and adhere to the wall, there are not gaps between the bristles and the wall, and the bristles are relatively fluffy. The drying airflow can enter the cleaning tank through the gaps between the bristles. In particular, there are also gaps between the roller brush bristles and the rear side wall, allowing the drying airflow entering the cleaning tank to flow over a larger area of ​​the roller brush surface, essentially without affecting the drying effect after self-cleaning.

[0008] Optionally, the acute angle between the front inner wall and the vertical direction is 30° to 40°, and the acute angle between the rear inner wall and the vertical direction is 65° to 75°.

[0009] Optionally, the cleaning tank includes a rear blocking portion, which is a protruding structure protruding upwards from the supporting portion and is used to prevent dirt in the cleaning tank from flowing out through the rear inner wall.

[0010] Optionally, the cleaning tank further includes a front blocking portion that protrudes upwards from the support portion and is used to prevent dirt in the cleaning tank from flowing out through the front inner wall.

[0011] Optionally, the base body also has an air outlet capable of blowing out an airflow for drying the roller brush; the front blocking portion has a guide surface opposite to the air outlet, the guide surface smoothly transitioning from the support portion to the top of the front blocking portion.

[0012] Optionally, the height of the bottom wall is lower than the height of the rear inner wall.

[0013] Optionally, the floor brush body is provided with a scraper on the rear side of the suction port. When the roller brush is located in the cleaning tank, the scraper includes a connecting part connected to the floor brush body and a working part extending downward from the connecting part. The projection of the working part in the vertical direction is located in the cleaning tank.

[0014] Optionally, the rear blocking portion abuts against the connecting portion.

[0015] Optionally, there is a gap between the working part and the rear inner wall.

[0016] Optionally, along a second preset direction parallel to the axis of the roller brush, the inner walls at both ends of the cleaning tank further include a left inner wall and a right inner wall, both of which extend upward from the bottom wall.

[0017] Optionally, the left inner wall and the right inner wall are symmetrically distributed along an axis of symmetry parallel to the first preset direction and passing through the center of the roller brush axis, and both the left inner wall and the right inner wall are arc surfaces.

[0018] Optionally, the acute angle between the left inner wall and the vertical direction, and the acute angle between the right inner wall and the vertical direction, are both 30° to 45°.

[0019] Optionally, the base body includes a main housing and a tray, the tray forming at least the front inner wall, the rear inner wall, the left inner wall and the right inner wall, and the tray is detachably mounted to the main housing.

[0020] Optionally, the tray is made of a hydrophobic material, or the tray has a hydrophobic coating.

[0021] A second aspect of this application provides a cleaning system, including a cleaning device and a base assembly as described in any embodiment of the first aspect. The cleaning device includes a floor brush assembly and a body, the body being rotatably disposed on the floor brush assembly. The floor brush assembly includes a floor brush body and a roller brush rotatably disposed on the floor brush body.

[0022] A third aspect of this application provides a self-cleaning method applied to the cleaning system described in the second aspect embodiment, the self-cleaning method comprising: When the cleaning device is located on the base body, in response to a self-cleaning command, the roller brush is controlled to alternately rotate forward and reverse while maintaining interference contact with the front inner wall. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This application provides schematic diagrams of the structure of cleaning equipment according to some embodiments; Figure 2 This is a schematic diagram of the structure of the base assembly provided in some embodiments of this application; Figure 3 Cross-sectional views of a cleaning system provided in some embodiments of this application; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 2 Schematic diagram of the structure of the middle tray; Figure 6 for Figure 5 A cross-sectional view of the middle tray along a first preset direction; Figure 7 for Figure 5 A cross-sectional view of the middle tray along the second preset direction; Figure 8 This is a flowchart illustrating a self-cleaning method in some embodiments of this application; Figure 9 The following is a structural block diagram of a self-cleaning device in some embodiments of this application.

[0025] Explanation of reference numerals in the attached figures: 100. Cleaning equipment; 110. Body; 120. Floor brush assembly; 121. Floor brush body; 122. Roller brush; 1221. Brush bristles; 123. Wheels; 130. Wastewater tank; 140. Clean water tank; 150. Suction motor; 160. Scraper; 161. Connecting part; 162. Working part; 200. Base assembly; 210. Base body; 211. Main housing; 212. Tray; 220. Cleaning tank; 221. Front blocking part; 2211. Guide surface; 222. Front inner wall; 223. Bottom wall; 224. Rear inner wall; 225. Rear blocking part; 226. Left inner wall; 227. Right inner wall; 230. Bearing part; 231. Protruding column; 232. Air outlet; 10. Self-cleaning device; 11. Control module. Detailed Implementation

[0026] To make the technical solution and beneficial effects of the present invention more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0027] In the description of this invention, the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this invention and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limiting this invention.

[0028] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature defined as "first" or "second" can explicitly include at least one of those features. In the description of this invention, "a plurality of" means at least two, such as two, three, etc.

[0029] In this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] like Figure 1 As shown, the cleaning system includes a cleaning device 100 and a base assembly 200. When the surface to be cleaned needs to be cleaned, the cleaning device 100 can be detached from the base assembly 200. When maintenance such as self-cleaning, drying, or charging of the cleaning device 100 is required, the base assembly 200 can support the cleaning device 100.

[0031] The cleaning device 100 includes a floor brush assembly 120. During operation, the floor brush assembly 120 can move forward or backward along the direction of travel on the surface to be cleaned. During this process, the floor brush assembly 120 cleans the surface by contacting and rubbing against the surface through the roller brush 122 at its bottom. For the cleaning device, the "left side" corresponds to the user's left side, and the "right side" corresponds to the user's left side. The left-right direction of the cleaning device is substantially parallel to the axis of the roller brush.

[0032] The base assembly contains a drying system, which includes a fan and a heating element. The heating element heats the airflow blown out by the fan into a hot airflow, which dries the roller brush when it is blown onto the roller brush. The heating element can be any of the following: heating wire, PTC (Positive Temperature Coefficient) heating, or infrared heating element.

[0033] Cleaning equipment 100 includes, but is not limited to, floor scrubbers, electric mops, etc.

[0034] For ease of description, the cleaning system of this application embodiment will be described below using a floor scrubber as an example of the cleaning equipment 100.

[0035] The floor brush assembly 120 may further include a floor brush body 121 and wheels 123. The floor brush body 121 is the main support structure of the floor brush assembly 120, and the roller brush 122 and wheels 123 can both be mounted on the floor brush body 121. For example, the floor brush body 121 may have a roller brush 122 cavity, the roller brush 122 may be located inside the roller brush cavity, and the roller brush 122 may rotate around its own axis. When the cleaning device 100 performs cleaning work, the roller brush 122 contacts the surface to be cleaned. The roller brush 122 is driven to rotate at high speed by the roller brush motor installed in the floor brush body 121, so that the roller brush 122 can make frictional contact with the surface to be cleaned to clean the surface. The wheels contact the surface to be cleaned and roll along the surface to be cleaned to assist the cleaning device 100 in moving on the surface to be cleaned, which can improve the stability of the floor brush assembly 120 in moving on the surface to be cleaned.

[0036] The cleaning device 100 also includes a clean water tank 140 and a wastewater tank 130. The wastewater tank 130 is used to store wastewater or solid dirt generated after cleaning. The clean water tank 140 can provide cleaning liquid to the roller brush 122, wetting the roller brush 122 to achieve wet cleaning. When the cleaning device 100 is located on the base assembly 200, the cleaning liquid provided by the clean water tank 140 can also be used for self-cleaning.

[0037] The cleaning equipment 100 also includes a suction motor 150, and the floor brush body 121 is also provided with a suction port, which is located on the rear side of the roller brush. A suction channel is provided between the suction port and the wastewater tank 130, and the suction motor 150 can suck the dirt near the suction port into the wastewater tank 130 in sequence through the suction port and the suction channel.

[0038] The cleaning equipment 100 also includes a body 110, which is rotatably connected to the base assembly 200. The aforementioned suction motor 150, wastewater tank 130, clean water tank 140, etc., can all be mounted on the body 110, but not always.

[0039] Other structures of the cleaning device 100 may be the same as those in the prior art, and will not be described in detail here.

[0040] like Figure 2 As shown, the base assembly 200 is provided with a cleaning tank 220 for placing the roller brush 122. When the cleaning device 100 finishes cleaning and stops on the base assembly 200, the cleaning device 100 can perform self-cleaning, and the roller brush 122 is cleaned and dried in the cleaning tank 220.

[0041] To improve the residue retention on the base components, especially residue from dense, hard debris such as sand and pebbles, combined with Figures 1 to 9 The embodiments of this application provide the following technical solutions.

[0042] See Figures 2 to 6 This application provides a base assembly 200, which includes a base body 210 and a charging terminal. The base body 210 includes a cleaning tank 220 and a support portion 230 located outside the cleaning tank 220. The support portion 230 supports the floor brush body 121 of the cleaning device 100, and the cleaning tank 220 accommodates the roller brush 122 of the cleaning device 100. The charging terminal is located in the support portion 230 and is used to charge the cleaning device 100.

[0043] When the cleaning device 100 is located on the base body 210, the charging terminal is located behind the cleaning tank 220 along a first preset direction perpendicular to the axis of the roller brush 122. Along the first preset direction, the cleaning tank 220 includes a front inner wall 222, a bottom wall 223, and a rear inner wall 224 arranged sequentially from front to back. The height of the front inner wall 222 is higher than the height of the bottom wall 223. When the roller brush 122 is located within the cleaning tank 220, the suction port of the floor brush body 121 is located within the cleaning tank 220. There is a gap between the bristles 1221 of the roller brush 122 and the rear inner wall 224, and the bristles 1221 of the roller brush 122 are in interference contact with at least a portion of the front inner wall 222.

[0044] For the base assembly 200, "front" and "rear" refer to directions relative to a first preset direction, and "left" and "right" (mentioned below) also refer to directions relative to the first preset direction. The orientations or positional relationships of "front," "rear," "left," and "right" are consistent with the cleaning device 100. That is, when the cleaning device 100 is located on the base body 210, the front of the cleaning device 100 corresponds to the front of the base body 210, and the rear of the cleaning device 100 corresponds to the rear of the base body 210. The left side of the cleaning device 100 also corresponds to the left side of the base body 210, and the right side of the cleaning device 100 also corresponds to the right side of the base body 210. For the roller brush 122, "forward rotation" refers to the direction of rotation that assists the forward movement of the cleaning device 100, and "reverse rotation" is opposite to the direction of "forward rotation." Figure 3 The structure shown is the reference point; clockwise rotation can be counter-clockwise, and counter-clockwise rotation can be clockwise.

[0045] After the cleaning device 100 completes its cleaning work on the ground, it is placed on the base assembly 200 with the roller brush 122 positioned inside the cleaning tank 220 and the base body 210 positioned above the support portion 230. Because the bristles 1221 of the roller brush 122 are in interference contact with the front inner wall 222 of the cleaning tank 220, during self-cleaning, the rotating roller brush 122 repeatedly wipes the front inner wall 222, reducing dirt adhesion. Furthermore, when the roller brush 122 reverses direction, the aforementioned denser, harder debris has difficulty passing through the gap between the roller brush 122 and the front inner wall 222 and leaving the cleaning tank 220 via the higher front inner wall 222. Instead, it is swept backward by the roller brush 122 towards the suction port when the roller brush 122 rotates forward, making it easier to suck up such debris. When there is cleaning liquid in the cleaning tank 220, the sewage surge agitated by the rotation of the roller brush 122 is mainly concentrated on the rear side of the roller brush 122. The surge is not only more conducive to carrying denser hard debris toward the suction port, but also can wash the bottom wall 223 and the rear side wall of the cleaning tank 220, improving the overall cleaning effect of the inner wall of the cleaning tank 220.

[0046] The bristles 1221 of the roller brush 122 can be in interference contact or non-interference contact with the bottom wall 223 of the cleaning tank 220. For example, there can be a gap between the bristles 1221 and the bottom wall 223.

[0047] For the roller brush 122, the bristles 1221 are fluffy and can be formed by flocking or weaving, for example, using nylon fibers, which are relatively soft. When the bristles 1221 are in interference contact with the front inner wall 222, although the bristles 1221 are compressed and adhere to the front inner wall 222, there are not gaps between the bristles 1221 and the front inner wall 222, and the bristles 1221 are relatively fluffy. The drying airflow can enter the cleaning tank 220 through the gaps between the bristles 1221. In particular, there are also gaps between the bristles 1221 and the rear side wall of the roller brush 122, allowing the drying airflow entering the cleaning tank 220 to flow over a larger area of ​​the roller brush 122 surface, which basically does not affect the drying effect after self-cleaning.

[0048] When the cleaning device 100 is placed on the base body 210, the charging interface of the cleaning device 100 is also connected to the charging terminal on the base body 210 to meet the charging needs of the cleaning device 100.

[0049] For example, a protrusion 231 is provided on the support portion, and the charging terminal is provided on the protrusion 231. This can raise the height of the charging terminal and reduce the impact of liquid on the charging terminal.

[0050] See Figure 6In some alternative embodiments, the acute angle α between the front inner wall 222 and the vertical direction is 30° to 40°, and the acute angle β between the rear inner wall 224 and the vertical direction is 65° to 75°. In the cleaning tank 220 that meets these parameters, the slope of the front inner wall 222 is greater than that of the rear inner wall 224. This is beneficial for the brush bristles 1221 of the roller brush 122 to make interference contact with the front inner wall 222, and also for leaving a gap between the roller brush 122 and the rear side wall, so that the debris can be swept towards the suction port on the rear side of the roller brush 122.

[0051] The front inner wall 222 and the rear inner wall 224 can each be independently an arc-shaped inner wall, an inclined planar inner wall, or a combination of arc-shaped and planar inner walls. For arc-shaped inner walls, see [reference needed]. Figure 6 The front inner wall 222 and the rear inner wall 224 are respectively the raised arc-shaped sidewalls on the front and rear sides. The aforementioned acute angles α and β refer to the acute angles between the tangent plane at any position of the arc-shaped inner wall and the vertical direction. If it is a planar inner wall, the aforementioned acute angles α and β refer to the acute angles between the plane containing the planar inner wall and the vertical direction.

[0052] For example, the aforementioned acute angle α can be 30°, 32°, 35°, 38°, or 40°. The aforementioned acute angle β can be 65°, 68°, 70°, 73°, or 75°.

[0053] See Figure 4 , Figure 5 and Figure 6 In some alternative embodiments, the cleaning tank 220 includes a rear blocking portion 225, which is a protruding structure protruding above the support portion 230 and is used to prevent dirt in the cleaning tank 220 from flowing out through the rear inner wall 224.

[0054] In addition to facing the aforementioned dense, hard waste residue, the base assembly 200 is also prone to waste flowing with the wastewater to the support portion 230 outside the cleaning tank 220 due to the agitation of the liquid in the cleaning tank 220 by the rotating roller brush 122. In this embodiment, the rear blocking portion 225 helps to better confine the wastewater and waste within the cleaning tank 220, reducing the risk of wastewater in the cleaning tank 220 flowing out through the rear inner wall 224 and contaminating the support portion 230.

[0055] In some alternative embodiments, the cleaning tank 220 further includes a front blocking portion 221 that protrudes above the support portion 230 and serves to prevent dirt and grime from flowing out of the cleaning tank 220 via the front inner wall 222. The front blocking portion 221 reduces the risk of wastewater from the cleaning tank 220 flowing out via the front inner wall 222 and contaminating the support portion 230. The front blocking portion 221 and the rear blocking portion 225 work together to better confine wastewater and debris within the cleaning tank 220, further improving the cleaning challenges of the base assembly 200.

[0056] See also Figures 4 to 5In some alternative embodiments, the base body 210 also has an air outlet 232 capable of blowing airflow for drying the roller brush 122. This airflow can be hot drying airflow or unheated airflow. The front blocking portion 221 has a guide surface 2211 opposite to the air outlet 232, which smoothly transitions from the support portion 230 to the top of the front blocking portion 221. The smoothly transitioning guide surface 2211 can better guide the drying airflow into the cleaning tank 220, reducing the resistance during the flow of the drying airflow.

[0057] After the drying airflow is blown out from the air outlet 232, it is smoothly guided upward through the guide surface 2211 into the cleaning tank 220, and then guided through the bottom wall 223 of the roller brush 122 into the gap between the bristles of the roller brush 122 and the front inner wall 222 for flow to the rear end of the roller brush 122.

[0058] In some alternative embodiments, the height of the bottom wall 223 is lower than the height of the front inner wall 222 and the rear inner wall 224, respectively. Since the bottom wall 223 is located between the front inner wall 222 and the rear inner wall 224, and the bottom wall 223 is at the lowest position, sewage is more likely to concentrate on the bottom wall 223, reducing the risk of sewage overflowing to the rear inner wall 224.

[0059] In the embodiments illustrated in this application, see... Figure 4 The vertical surface that passes through the axis of the roller brush 122 and is perpendicular to the first preset direction is defined as the reference surface, which also roughly passes through the middle of the bottom wall 223.

[0060] In some alternative embodiments, the floor brush body 121 is provided with a scraper 160 on the rear side of the suction port. When the roller brush 122 is located in the cleaning tank 220, the scraper 160 includes a connecting part 161 connected to the floor brush body 121 and a working part 162 extending downward from the connecting part 161. The projection of the working part 162 in the vertical direction is located in the cleaning tank 220.

[0061] During the cleaning process, when the user pushes the cleaning device 100 forward, the working part 162 of the squeegee 160 can scrape the ground, pushing the water stains forward towards the suction port, where they are sucked away. Therefore, there is also debris on the squeegee 160. When the cleaning device 100 returns to the base assembly 200 for self-cleaning, the suction port is located between the roller brush 122 and the rear stop 225. The roller brush 122 uses the wastewater surge generated by its rotation in the cleaning tank 220 to wash the squeegee 160, expanding the cleaning area of ​​the cleaning device 100.

[0062] In some alternative embodiments, the rear blocking portion 225 abuts against the connecting portion 161. The scraper 160 is generally made of soft rubber, and the hardness of the rear blocking portion 225 is greater than that of the scraper 160. The abutment between the rear blocking portion 225 and the connecting portion 161 makes it easier to form a seal at the abutment point, further preventing sewage from flowing out of the cleaning tank 220.

[0063] In other implementations, the rear stop 225 may also abut against other parts of the base assembly 200, as long as a seal is formed at the abutment point to seal the cleaning tank 220. For example, the rear stop 225 abuts against the base body 210.

[0064] In some alternative embodiments, a gap exists between the working part 162 and the rear inner wall 224. This eliminates the pressure between the working part 162 and the rear inner wall 224, reducing elastic fatigue of the scraper blade 160 caused by compression deformation of the working part 162 and ensuring the service life of the scraper blade 160. Furthermore, when sewage surges and washes the scraper blade 160, it can flow through the gap between the working part 162 and the rear inner wall 224 to the rear side of the scraper blade 160, providing a certain cleaning effect on the rear surface of the scraper blade 160.

[0065] See Figure 7 In some alternative embodiments, along a second preset direction parallel to the axial direction of the roller brush 122, the inner walls at both ends of the cleaning tank 220 also include a left inner wall 226 and a right inner wall 227, both of which extend upward from the bottom wall 223.

[0066] The second preset direction is approximately perpendicular to the first preset direction. The left inner wall 226 and the right inner wall 227 also form a blocking effect on the left and right sides of the cleaning tank 220, respectively, further reducing the outflow of sewage from the cleaning tank 220. In conjunction with the foregoing description, the front inner wall 222, the rear inner wall 224, the left inner wall 226, and the right inner wall 227 work together to enclose the cleaning tank 220, better confining the sewage within the cleaning tank 220.

[0067] In some alternative embodiments, the left inner wall 226 and the right inner wall 227 are aligned with an axis of symmetry (Z) parallel to a first preset direction and passing through the axial center of the brush 122. Figure 2 (As shown by the dotted line) Symmetrically distributed, both the left inner wall 226 and the right inner wall 227 are curved surfaces. The curved surfaces make it easier to smoothly transition with the bottom wall 223, reducing stain adhesion and hard-to-clean corners. Of course, the left inner wall 226 and the right inner wall 227 can also be inclined straight inner walls.

[0068] In some alternative embodiments, the acute angle between the left inner wall 226 and the vertical direction, and the acute angle between the right inner wall 227 and the vertical direction, are both 30° to 45°. For example: see Figure 7 The acute angle γ1 between the left inner wall 226 and the vertical direction is 30°, 35°, 40°, or 45°. The acute angle γ2 between the right inner wall 227 and the vertical direction is 30°, 32°, 35°, 40°, 43°, or 45°. The left inner wall 226 and right inner wall 227, which meet the above parameters, can better prevent sewage from flowing out of the cleaning tank 220.

[0069] If the left inner wall 226 and the right inner wall 227 are curved inner walls, see Figure 7 Acute angles γ1 and γ2 refer to the acute angles between the tangent plane at any position on the curved inner wall and the vertical direction. If it is a planar inner wall, acute angles γ1 and γ2 refer to the acute angles between the plane containing the planar inner wall and the vertical direction.

[0070] See Figure 2 In some alternative embodiments, the base body 210 includes a main housing 211 and a tray 212. See also Figures 5 to 7 The tray 212 forms at least a front inner wall 222, a rear inner wall 224, a left inner wall 226, and a right inner wall 227, and is detachably mounted on the main housing 211. In the prior art, the portion of the base body 210 that forms the cleaning groove 220 is usually fixed and cannot be disassembled separately. During cleaning, the entire base assembly 200 needs to be cleaned, which is inconvenient. In this embodiment, the charging terminal and the support portion 230 are both located on the main housing 211, and the tray 212 can be removed and cleaned separately, which not only makes cleaning more convenient but also reduces the impact of the cleaning process on the charging terminal. In addition, the tray 212 can be directly installed on top of the base assembly using a traditional cleaning groove, which can improve the self-cleaning and residue-preventing effect of the traditional structure without replacing the entire base assembly, and reduce the cost of re-molding and product replacement.

[0071] In some alternative embodiments, the tray 212 is made of a hydrophobic material. The hydrophobic material reduces the adhesion of stains to the base body 210, improving cleaning effectiveness.

[0072] For example, the hydrophobic material can be polytetrafluoroethylene, fluorosilicone resin, glass, etc.

[0073] In some alternative embodiments, the tray 212 is provided with a hydrophobic coating. The hydrophobic coating can also reduce the adhesion of stains to the base body 210, improving cleaning effectiveness.

[0074] For example, the hydrophobic coating may be a fluorosilicone resin composite coating, a silica coating, etc.

[0075] See Figure 5 The tray 212 also forms the surfaces of the aforementioned front blocking portion 221, rear blocking portion 225, and part of the support portion 230. In other words, the tray 212 is placed in an area where dirt is easily retained, and the hydrophobicity of the surface of the tray 212 can reduce the adhesion of stains, thereby reducing the frequency of manual cleaning of the tray 212.

[0076] To further reduce the amount of waste remaining in the cleaning tank 220, the inner wall of the cleaning tank 220 can also be mirror polished.

[0077] This application also provides a cleaning system, characterized in that it includes a cleaning device 100 and a base assembly 200 as described in any of the preceding embodiments. The cleaning device 100 includes a floor brush assembly 120 and a body 110. The body 110 is rotatably disposed on the floor brush assembly 120. The floor brush assembly 120 includes a floor brush body 121 and a roller brush 122 rotatably disposed on the floor brush body 121.

[0078] The cleaning system has the same technical effect as the aforementioned base assembly 200, and will not be described again.

[0079] See Figure 8 This application also provides a self-cleaning method, applied to the cleaning system described in any of the foregoing embodiments. The self-cleaning method includes: In step S110, when the cleaning device 100 is located on the base body 210, while the roller brush 122 is in interference contact with the front inner wall 222, in response to the self-cleaning command, the roller brush 122 is controlled to alternately rotate forward and reverse.

[0080] Sensors can be used to detect whether the cleaning device 100 is located on the base body 210. Alternatively, the presence of a charging circuit between the cleaning device 100 and the base assembly 200 can be detected to determine whether the cleaning device 100 is connected to the base assembly 200.

[0081] After the cleaning device 100 is connected to the base assembly 200, it can automatically generate a self-cleaning command. Alternatively, after the cleaning device 100 is connected to the base assembly 200, it can automatically generate a self-cleaning command when the dirt sensor detects that the roller brush 122 is dirty. Of course, the self-cleaning command can also be passively generated during human-computer interaction. For example, the user can press the corresponding button on the device 110, or the user can speak the self-cleaning command, or the user can remotely send the self-cleaning command to the controller using a mobile phone or other terminal.

[0082] After the self-cleaning process is initiated, power is supplied to the roller brush 122 motor, controlling the motor to drive the roller brush 122 to rotate forward or backward. During the self-cleaning process, the roller brush 122 rotates forward and backward in a cyclical manner to pick up and suck up the debris that has settled to the bottom of the cleaning tank 220. When the roller brush 122 rotates forward, it can sweep sewage and solid debris towards the suction port on the rear side. When the roller brush 122 rotates backward, it can create waves of sewage in the cleaning tank 220 and also make the bristles 1221 stand up, fluffing the bristles 1221 and ensuring that the bristles 1221 adhere to the front side wall. Alternating between forward and reverse rotation can better achieve the cleaning effect of the roller brush 122 and the cleaning tank 220.

[0083] In some embodiments, the self-cleaning method may further include: step S120, controlling the suction motor 150 to suction. Step S120 may be performed after step S110 or simultaneously with step S110. After the suction motor 150 is started, the dirt in the cleaning tank 220 is sucked into the wastewater tank 130.

[0084] See Figure 9 This application embodiment also provides a self-cleaning device 10, which is applied to the cleaning system described in any of the foregoing embodiments. The self-cleaning device 10 includes a control module 11. When the cleaning device 100 is located on the base body 210, and the roller brush 122 is kept in interference contact with the front inner wall 222, the control module 11 is used to control the roller brush 122 to alternately rotate forward and reverse in response to the self-cleaning command.

[0085] In this embodiment, the execution entity of the control method can be a controller installed in the cleaning device 100 or a controller installed in the cleaning base. Alternatively, the execution entity can also be a server corresponding to the cleaning device 100 and the base assembly 200. This server is located in the cloud, connected to the cleaning device 100 via a network, and issues user commands to the cleaning device 100 and the base assembly 200, or forwards user commands sent by the user through a terminal device (such as a mobile phone, wearable device, or computer) to the cleaning device 100 and the base assembly 200.

[0086] The controller described above may include a microcontroller unit (MCU). Of course, the controller may also include other devices capable of control functions.

[0087] This application also provides a computer-readable storage medium that stores computer-executable instructions. When the processor executes the computer-executable instructions, the above self-cleaning method is implemented.

[0088] The computer-readable storage medium provided in this embodiment can execute the self-cleaning method of the above embodiment. Its implementation principle and technical effect are similar, and will not be described again in this embodiment.

[0089] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0090] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Of course, the readable storage medium can also be a component of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in an electronic device or a host device.

[0091] Those skilled in the art will understand that all or part of the steps of the above-described method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When executed, the program performs the steps of the above-described method embodiments; and the aforementioned storage medium includes various media capable of storing program code, such as ROM, RAM, magnetic disks, or optical disks.

[0092] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0093] In the description of this specification, references to "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A base assembly, characterized in that, The base assembly includes: The base body includes a cleaning tank and a support portion located outside the cleaning tank. The support portion is used to support the floor brush body of the cleaning equipment, and the cleaning tank is used to accommodate the roller brush of the cleaning equipment. A charging terminal, located on the support portion, is used to charge the cleaning device; When the cleaning device is located on the base body, the charging terminal is located behind the cleaning tank along a first preset direction perpendicular to the axis of the roller brush. Along the first preset direction, the cleaning tank includes a front inner wall, a bottom wall, and a rear inner wall arranged sequentially from front to back; wherein, the height of the front inner wall is higher than the height of the bottom wall; when the roller brush is located in the cleaning tank, the suction port of the floor brush body is located in the cleaning tank, the bristles of the roller brush have a gap with the rear inner wall, and are in interference contact with at least a portion of the front inner wall.

2. The base assembly according to claim 1, characterized in that, The acute angle between the front inner wall and the vertical direction is 30° to 40°, and the acute angle between the rear inner wall and the vertical direction is 65° to 75°.

3. The base assembly according to claim 1, characterized in that, The cleaning tank includes a rear blocking part, which is a protruding structure that protrudes upward from the supporting part and is used to prevent dirt in the cleaning tank from flowing out through the rear inner wall.

4. The base assembly according to claim 3, characterized in that, The cleaning tank also includes a front blocking part, which protrudes upward from the supporting part and is used to prevent dirt in the cleaning tank from flowing out through the front inner wall.

5. The base assembly according to claim 4, characterized in that, The base body also has an air outlet that can blow out an airflow for drying the roller brush; the front blocking part has a guide surface opposite to the air outlet, and the guide surface smoothly transitions from the support part to the top of the front blocking part.

6. The base assembly according to claim 1, characterized in that, The height of the bottom wall is lower than the height of the rear inner wall.

7. The base assembly according to claim 3, characterized in that, The floor brush body is provided with a scraper on the rear side of the suction port. When the roller brush is located in the cleaning tank, the scraper includes a connecting part connected to the floor brush body and a working part extending downward from the connecting part. The projection of the working part in the vertical direction is located in the cleaning tank.

8. The base assembly according to claim 7, characterized in that, The rear blocking portion abuts against the connecting portion.

9. The base assembly according to claim 7, characterized in that, There is a gap between the working part and the rear inner wall.

10. The base assembly according to claim 1, characterized in that, Along a second preset direction parallel to the axis of the roller brush, the inner walls at both ends of the cleaning tank also include a left inner wall and a right inner wall, both of which extend upward from the bottom wall.

11. The base assembly according to claim 10, characterized in that, The left inner wall and the right inner wall are symmetrically distributed along a symmetry axis parallel to the first preset direction and passing through the center of the roller brush axis, and both the left inner wall and the right inner wall are arc surfaces.

12. The base assembly according to claim 11, characterized in that, The acute angle between the left inner wall and the vertical direction, and the acute angle between the right inner wall and the vertical direction, are both between 30° and 45°.

13. The base assembly according to claim 10, characterized in that, The base body includes a main shell and a tray, the tray forming at least the front inner wall, the rear inner wall, the left inner wall and the right inner wall, and the tray is detachably mounted on the main shell.

14. The base assembly according to claim 13, characterized in that, The tray is made of a hydrophobic material, or the tray has a hydrophobic coating.

15. A cleaning system, characterized in that, The invention includes a cleaning device and a base assembly as described in any one of claims 1 to 14. The cleaning device includes a floor brush assembly and a body, the body being rotatably disposed on the floor brush assembly. The floor brush assembly includes a floor brush body and a roller brush rotatably disposed on the floor brush body.

16. A self-cleaning method, characterized in that, The self-cleaning method, applied to the cleaning system of claim 15, comprises: When the cleaning device is located on the base body, in response to a self-cleaning command, the roller brush is controlled to alternately rotate forward and reverse while maintaining interference contact with the front inner wall.

Images