Surface cleaning system

Abstract

The utility model discloses a surface cleaning system which comprises a surface cleaning device and a base, the surface cleaning device comprises a ground brush with a cleaning roller and a dirt scraping piece, the base is provided with a cleaning tank corresponding to the cleaning roller, and the surface cleaning device is in butt joint with the base so that the cleaning roller can conduct self-cleaning in the cleaning tank. A blocking part is arranged between the roller brush cover and the base, the floor brush further comprises a driver, and the driver drives the cleaning roller to move towards the blocking part. According to the scheme, the cleaning roller is driven to move forwards to be close to the blocking part while the blocking part is arranged, so that the sectional area of the guide channel in the rotating direction of the cleaning roller is relatively reduced, dirt on the guide channel is better cleaned, and the dirt is prevented from being accumulated in the area of the guide channel.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a surface cleaning system. Background Art

[0002] With the continuous improvement of people's living standards, surface cleaning equipment for household use has begun to be widely used. Vacuum cleaners, floor scrubbers, robots and other products are increasingly being used in auxiliary cleaning scenarios. In order to further improve the user experience, existing products are equipped with an automatic cleaning function. After the cleaning operation is completed, they can return to the base or the corresponding position for self-cleaning. However, in existing products, in order to achieve the edging effect on the front side of the floor brush, the roller brush cover only partially blocks the roller brush from above the floor brush, so that when the roller brush is docked with the base and self-cleaning, sewage and dirty liquid may be thrown out and pollute the ground.

[0003] In order to solve the above problems, the prior art with Chinese patent application number CN2021224193660 sets a shielding component between the roller brush cover and the base on the front side of the floor brush for sealing and closure to prevent the problem of sewage splashing out. Although this solution solves the problem of sewage and dirt splashing out, it is easy for dirt to be hidden in the area between the shielding component and the base, which is outside the cleaning range of the cleaning roller. Especially when there are tangled objects, it is easy for the tangled objects to get stuck and accumulate in this area due to their flexibility, forming a self-cleaning "dead zone". Utility Model Content

[0004] In order to at least partially solve the shortcomings and deficiencies existing in the above-mentioned prior art, the utility model provides a surface cleaning system, including a surface cleaning device and a base, the surface cleaning device including a floor brush having a cleaning roller and a scraping member, the base being provided with a cleaning groove corresponding to the cleaning roller, the surface cleaning device being docked with the base so that the cleaning roller can self-clean in the cleaning groove, and characterized in that a blocking portion is provided between the roller brush cover and the base, the floor brush also comprising a driver, and the driver drives the cleaning roller to move toward the blocking portion.

[0005] Further, the cleaning roller includes a first state interfering with the scraper and a second state separated from the scraper, and the driver drives the cleaning roller to move toward the blocking portion to form the second state; the driver drives the cleaning roller to move toward the scraper to form the first state.

[0006] Furthermore, the base is also provided with a rotary drive, which drives the cleaning roller to rotate forward and reversely.

[0007] Furthermore, the cleaning tank includes a rib that forms the cleaning tank, one end of the blocking portion is detachably mounted on the rib, and the other end cooperates with the roller brush cover.

[0008] Furthermore, one end of the blocking portion includes a first side plate and a second side plate, and one end of the first side plate intersects with one end of the second side plate to form a groove that is clamped on the rib.

[0009] Furthermore, an elastic member for abutting against the roller brush cover is provided on the other end of the blocking portion.

[0010] Furthermore, a first arcuate surface is formed on the inner side of the front portion of the roller brush cover, and a second arcuate surface facing the roller brush is formed on the blocking portion, and there is a non-smooth transition between the first arcuate surface and the second arcuate surface.

[0011] Furthermore, the second arc-shaped surface is coaxial with the cleaning roller, and the radius of the second arc-shaped surface is greater than the radius of the first arc-shaped surface.

[0012] Furthermore, the cleaning roller includes side plates pivotally connected to each other, and the driver drives the side plates to move, wherein the side plates are exposed to the side walls of the floor brush.

[0013] Furthermore, in a first state where the cleaning roller and the scraping member interfere with each other, there is a first interference amount between the cleaning member and the scraping member, and in a second state where the cleaning roller and the scraping member are separated from each other, there is a first gap amount between the cleaning member and the scraping member, wherein the first gap amount is greater than or equal to the first interference amount.

[0014] The beneficial effects of adopting the technical solution include: by setting a blocking portion to fill the gap between the roller brush cover and the base as much as possible, and at the same time setting a driver to drive the cleaning roller to move forward to approach the blocking portion, so that the cross-sectional area of ​​the guide channel in the rotation direction of the cleaning roller is significantly reduced compared with the prior art, and dirt such as clumped entangled objects will be driven by the cleaning roller to the suction port and sucked away, thereby eliminating the "dead zone". On the other hand, the significant reduction in the cross-sectional area of ​​the guide channel here can speed up the flow rate of the airflow, thereby further preventing the entangled objects from being trapped in the "dead zone". BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a complete machine diagram of the surface cleaning device;

[0016] Figure 2 A schematic diagram of the internal structure of a floor brush in a possible implementation of a surface cleaning device;

[0017] Figure 3 It is a schematic diagram of the structure of a water distribution plate in a surface cleaning device;

[0018] Figure 4 An exploded view of a water distribution plate in a surface cleaning device;

[0019] Figure 5 Schematic diagram of the cross-sectional structure of the water distribution plate;

[0020] Figure 6 For attachment Figure 2 A schematic diagram of a state of the local cross-section structure in the AA direction;

[0021] Figure 7 For attachment Figure 2 Schematic diagram of another state of the local cross-section structure in the AA direction;

[0022] Figure 8 For attachment Figure 2 A schematic diagram of a state of the local cross-section structure in the middle BB direction;

[0023] Fig. 9 It is a schematic diagram of the internal structure of the floor brush in a preferred embodiment of the surface cleaning device;

[0024] Fig.10 for Fig. 9 A partial enlarged view of the middle D part;

[0025] Fig.11 It is a schematic diagram of a partial cross-sectional structure of a preferred embodiment of a surface cleaning device;

[0026] Fig.12 It is a partial cross-sectional structural schematic diagram of the surface cleaning device when it is docked with the base and the cleaning element is in a first state;

[0027] Fig.13 It is a partial cross-sectional structural schematic diagram of the surface cleaning device when it is docked with the base and the cleaning member is in the second state;

[0028] Fig.14 A schematic flow chart of a self-cleaning method for a surface cleaning device;

[0029] Fig.15 This is a preferred self-cleaning method implementation method of a surface cleaning device in Example 1;

[0030] Fig.16 This is an implementation method of a self-cleaning method for a surface cleaning device of Example 2;

[0031] Fig.17 This is a preferred self-cleaning method implementation method of the surface cleaning device of Example 3;

[0032] Fig.18 This is a preferred self-cleaning method implementation method of the surface cleaning device of Example 4;

[0033] Fig.19 This is a preferred self-cleaning method implementation method of the surface cleaning device of Example 5;

[0034] Fig. 20 This is a preferred self-cleaning method implementation method of the surface cleaning device of Example 6;

[0035] Fig.21 This is a preferred self-cleaning method implementation method for the surface cleaning device of Example 7. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model. In the description of the utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance, let alone relative order or precedence priority.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] It should be noted that the surface cleaning device in the embodiment of the present invention can be a dry vacuum cleaner or a wet and dry floor scrubber / mop device. Specifically, the surface cleaning device can be a handheld cleaning machine with a handle and manually operated by a user, such as a handheld floor scrubber, a handheld floor mopper, a handheld vacuum cleaner, etc.; it can also be a cleaning robot with a driving wheel, which can control the driving wheel to move according to a program stored in itself and control the cleaning roller to clean the floor. The following is a further description of the present invention using a handheld surface cleaning device as an example in conjunction with the accompanying drawings and specific embodiments.

[0039] As the surface cleaning device of the utility model, Figure 1-13As shown, it includes a body 10 and a floor brush 20, and the body 10 and the floor brush 20 are hinged. The floor brush 20 includes a floor brush shell 210. The floor brush 20 is provided with a driving assembly, a roller brush chamber, a cleaning member 202, a scraping member 203 and a roller brush cover 204. The driving assembly includes a rotary driver 201. The cleaning member 202 and the scraping member 203 are arranged in the roller brush chamber. The rotary driver 201 is rotatably connected with the cleaning member 202 to drive the cleaning member to rotate forward and reversely, at least when the cleaning member rotates forward, the dirt on the surface to be cleaned is wiped. The cleaning member 202 and the scraping member 203 have a first state of mutual abutment, and a preset interference amount is formed between the cleaning member 202 and the scraping member 203. For example, when cleaning the surface to be cleaned, at least the first state is present, so that the dirt carried by the cleaning member can be scraped off by the scraping member. Specifically, the cleaning member 202 is a cleaning roller, and the scraping member 203 can be a scraping bar, a comb tooth member, or a combination thereof, and can be made of metal, plastic, or rubber. Preferably, the scraping bar 2032 and the comb tooth 2031 are combined to form the scraping member 203. The surface cleaning device also includes a water supply component and a sewage suction component. The water supply component includes a clean water tank, a water pump 205 and a water diversion plate 206. The clean water tank, the water pump 205 and the water diversion plate 206 are connected in sequence through pipelines to supply the cleaning liquid in the clean water tank to the cleaning parts through multiple water outlets on the water diversion plate 206. The water outlets are arranged along the axial direction of the cleaning roller corresponding to the cleaning roller, and the comb teeth are located below the water outlets, so that the dirt in the comb tooth gap can be flushed during the self-cleaning process; the sewage suction component includes a suction port 207, a sewage bucket and a sewage suction fan. The suction port 207, the sewage bucket and the sewage suction fan are connected in sequence through pipelines. The suction port 207 is connected to the roller brush chamber so that the dirt on the surface to be cleaned, the cleaning parts or the dirt scraped off by the scraping parts is sucked away and stored in the sewage bucket. The fuselage 10 is also provided with a battery assembly and a control panel, and the control panel is electrically connected to the rotary drive, the sewage suction fan, and the battery assembly to control the battery assembly to supply power to the rotary drive and the sewage suction fan and control them to start, stop, and other actions.

[0040] In this embodiment, the cleaning member 202 and the scraping member 203 also have a second state of being separated from each other. In a possible implementation, the cleaning member 202 is fixedly mounted on the floor brush, the scraping member 203 is movably mounted on the floor brush, and the scraping member 203 can move relative to the cleaning member to control the distance between the scraping member 203 and the cleaning member; in another possible implementation, the cleaning member and the scraping member are both movably mounted on the floor brush, and the cleaning member and the scraping member 203 can move relative to each other at the same time to adjust the distance between the scraping member and the cleaning member; in a preferred implementation, the scraping member 203 is fixedly mounted on the floor brush, the cleaning member is movably mounted on the floor brush, and the cleaning member can move relative to the scraping member to control the distance between the scraping member and the cleaning member.

[0041] The above two moving modes are described below.

[0042] In one possible implementation manner described above, combined with Figures 2 to 8As shown, the water-dividing plate is connected with the wiping member to form an integrated component structure. When the first state is switched, the water-dividing plate 206 moves together with the wiping member 203. The floor brush housing 210 is provided with an active groove with an opening facing the roller brush direction, and the integrated component structure is installed in the active groove. Specifically, the water-dividing plate 206 includes a main housing 2061, a middle plate 2062, and a top cover 2063. The main housing 2061 is provided with a water outlet, and an inner concave portion is provided on the top surface of the main housing 2061. The middle plate 2062 and the top cover 2063 are successively embedded in the inner concave portion, wherein a second flow channel connected to the water supply port is formed between the lower surface of the main housing 2061 and the middle plate 2062, and a first flow channel connected to the second flow channel is formed between the upper surface of the middle plate 2062 and the top cover 2063. The first flow channel is located above the second flow channel, and the cleaning liquid is evenly diverted through the first flow channel and the second flow channel. The top surface of the comb tooth member 2031 is provided with a screw column 20311, and the screw column 20311 sequentially penetrates the scraper strip 2032, the main housing 2061, the middle plate 2062, and the top cover 2063 from the top and bottom directions, and is finally fixed by the fastening screw 2064, so that the water dividing plate 205 is connected to the wiper member 203 to form an integrated component structure. The middle plate 2062 is provided with a water inlet 20621, and the water inlet 20621 is connected to the first flow channel. The water inlet 20621 takes in water from the horizontal direction, so that the water inlet direction of the water inlet 20621 is perpendicular to the arrangement direction of the first and second flow channels. The integrated component structure also includes a seal 2065, which is annularly arranged on the outer periphery of the main housing 2061 and the comb tooth 2031 and contacts the peripheral wall of the movable groove. The seal of the corresponding part of the main housing 2061 is closer to the roller brush surface than the seal of the corresponding part of the comb tooth 2031, so that the seal 2031 is inclined and approximately tangent to the roller brush. The main housing 2061 is also provided with a transmission wall 20611 and a limit column 20612, which are formed by extending backward from the rear wall surface of the main housing 2061, that is, the extension direction of the transmission wall 20641 and the limit column 20642 is parallel to the extension direction of the water inlet or the water inlet direction. The bottom of the movable groove is provided with an opening structure for the transmission wall 20611 to extend out, and an elastic member such as a spring is also provided between the limit column 20612 and the movable groove. The floor brush housing 210 also has a driver 208, and the output end of the driver 208 is connected to the transmission wall 20611 through a transmission component 209, so that the integrated component structure moves forward and backward, thereby realizing the switching control of the cleaning member and the scraping member between the first state and the second state.The transmission assembly 209 includes a threaded column 2091 and a threaded sleeve 2092, one end of the threaded column 2091 is fixedly connected to the output end of the driver 208, the outer surface of the threaded column 2091 is provided with a transmission thread, and the threaded sleeve 2092 includes a first end with an internal thread and a second end with a limiting protrusion 20921, and the limiting protrusion 20921 of the second end extends into the hole or groove 206111 on the transmission wall 20611 to realize the transmission connection.

[0043] In this embodiment, after the integrated component structure moves backward into position so that the integrated component structure contacts the bottom of the movable groove, the wiping member is at least partially still located outside the movable groove and extends into the roller brush cavity, so that although the wiping member is separated from the roller brush, it can still scrape and block large clumps of dirt in the roller brush cavity. The driver 208 preferably adopts a motor, and the output end of the driver rotates to transmit power to the threaded column, the threaded sleeve, and the limit column 2062, thereby driving the integrated component structure to move. The extension direction of the limit column is the same as the extension direction of the water inlet joint. There are two drivers, which are asymmetrically arranged about the central axis of the floor brush and located on both sides of the sewage suction port.

[0044] In a preferred embodiment, in combination Figures 9 to 11As shown, the cleaning member 202 includes a side plate 2021 and a roller 2022, and the side plate 2021 and the roller 2022 are pivotally connected. The floor brush housing 210 includes an upper shell 210a, a lower shell 210b and a buckle cover 210c. The 210b is provided with a mounting groove 2101, a first groove 2102 and a second groove 2103 for placing the driver 208. The first groove and the second groove are respectively arranged on two opposite side walls of the floor brush housing. The first groove 2102 is formed by at least partially concavely forming one side wall of the floor brush housing, and the second groove 2103 is formed by at least partially concavely forming the other side wall of the floor brush housing. The buckle cover 210 is installed on the lower shell 210b, and the bottom wall of the first groove is at least partially concavely formed with a sliding groove 2104. The driving assembly includes a driver 208, a bracket, an end cover 2012 and a transmission assembly 209'. The rotary driver is installed on the bracket, and the bracket 21 is pivotally linked with the end cover 2012. When installing in a cleaning room, the user holds the side plate 2021 and inserts it from the first groove 2102 side of the floor brush housing to the second groove 2103 side. After installation, the side plate 2021 is embedded in the first groove 2102 and flush with the side wall of the floor brush housing, and the output end of the rotary driver is connected to the roller 2022. The side plate 2021 and the end cover 2102 are connected to the output end of the driver 208 through the transmission assembly 209', respectively, and the cleaning member is driven to move forward and backward by a distance S through the side plate 2021 and the end cover 2102, so as to switch control between the first state and the second state relative to the scraping member. The transmission assembly 209' includes a threaded column 2091', a threaded sleeve 2092', and a slider 2093'. The outer surface of the threaded column 2091' is provided with a transmission thread. The threaded sleeve 2092' includes a first part with an internal thread and a second part formed on the peripheral wall of the first part. The second part extends along the axial direction of the thread to form a platform surface 20922'. The platform surface 20922' is provided with a limit screw column 20921' extending radially outward along the internal thread. The threaded sleeve 2092' is fixedly connected to the slider 2093' via the limit screw column 20921'. Specifically, a sliding groove 2104 is further provided at the bottom of the first groove 2102 of the buckle cover, at least a portion of the slider 2093' is provided in the sliding groove 2104, the limiting screw column 20921' extends into the sliding groove 2104 after passing through the first wall 2105 on the floor brush housing from the inside of the floor brush housing, and then at least partially extends into the groove inside the slider 2093' and is fixedly connected to the limiting screw column 20921' from the outside of the slider 2093' through the fixing member. A limiting groove arranged around the fixing member is provided on the outside of the slider 2093', and a limiting rib 20211 corresponding to the limiting groove is provided on the inner side wall of the side plate 2021, and the limiting rib and the limiting groove can be a closed ring or a partially disconnected approximately ring structure.After the roller brush is installed, the limiting rib 20211 extends into the limiting groove on the slider 2093' to achieve detachable installation.

[0045] Furthermore, the wall surface outside the slider 2093' within the region where the limiting ribs 20211 are arranged is lower than the region outside the region where the limiting ribs 20211 are arranged. Preferably, the limiting ribs 20211 are partially disconnected, and the space between the wall surface and the side plate 2021 is connected through the partially disconnected position, thereby avoiding the problem that the side plate 2021 cannot be removed due to the negative pressure suction of the space.

[0046] Furthermore, a first slide groove 20931 is provided on the peripheral side of the slider 2093', and a second slide groove 21041 corresponding to the first slide groove 20931 is provided on the side wall of the slide groove 2104. A steel ball is provided between the first slide groove 20931 and the second slide groove 21041 to reduce the resistance when the slider moves.

[0047] Furthermore, the movable side panel 2021 and the end cover 2012 are exposed to the side wall of the floor brush housing 210. Preferably, the area of ​​the side panel and / or the end cover 2012 is similar to the area of ​​the side wall of the floor brush housing, and the ratio of the area of ​​the side panel and / or the end cover 2012 to the area of ​​the side wall of the floor brush housing is in the range of 0.8 to 1.

[0048] As part of this utility model, Fig.12 As shown, it also includes a cleaning tank 310 for accommodating the cleaning member 202. In one form of the cleaning tank, the cleaning tank 310 is formed on the base 30, and a rib 330 is provided around the cleaning tank. When the user needs to self-clean or charge the battery assembly, the surface cleaning device is placed on the base so that the two are adapted to be connected. In another form of the cleaning tank, the cleaning tank is formed with a slot plate, and the slot plate can be movably arranged in the floor brush. When a self-cleaning operation is required, the slot plate moves to the bottom of the cleaning member to form a cleaning tank for the self-cleaning operation of the cleaning member.

[0049] In the prior art, there is also the problem that during the self-cleaning process of the surface cleaning device docking with the base, dirty liquid will be thrown out from the gap between the roller brush cover and the base during the rotation of the cleaning roller, causing pollution. When there are tangled objects, the tangled objects will be stuck in the gap, which will not only cause the cleaning roller to be unable to drive the tangled objects and form a "dead zone", but also because the gap is far away from the suction port, the suction force is not enough to suck them away. Therefore, a blocking portion 320 is further provided between the base 30 and the roller brush cover 204, and the cleaning roller 202, the roller brush cover 204, the blocking portion, and the base together form a guide channel, and the driver 208 drives the roller brush to move forward to approach the second state of the blocking portion, so as to reduce the cross-sectional area of ​​the guide channel in the rotation direction of the cleaning roller. The movement direction of the dirt in the guide channel is as shown in FIG. Fig.12 Indicated by the dotted arrow direction.

[0050] By providing a blocking portion to fill the gap between the roller brush cover and the base as much as possible, it is possible to prevent the cleaning roller from rotating and throwing out the dirty liquid during the self-cleaning process. At the same time, a driver is provided to drive the cleaning roller to move forward to approach the blocking portion. Compared with the first state, when the cleaning roller is in the second state, the cross-sectional area of ​​the guide channel in the rotation direction of the cleaning roller is significantly reduced, and dirt such as clumped entanglements will be driven by the cleaning roller to the dirt suction port and sucked away, thereby eliminating the "dead zone". On the other hand, the significantly reduced cross-sectional area of ​​the guide channel here can speed up the flow rate of the airflow, thereby further preventing the entanglements from being trapped in the "dead zone".

[0051] Furthermore, the ratio of the maximum distance between the cleaning roller and the roller brush cavity in the first state to the maximum distance between the cleaning roller and the inner wall of the blocking portion in the second state is in the range of 0.7 to 1.3. Fig.12 In S1, the maximum distance between the cleaning roller and the inner wall of the blocking portion when the cleaning roller is in the second position is as follows: Fig.12 In S2, the ratio of S1 / S2 ranges from 0.7 to 1.3. Specifically, the ratio of S1 / S2 can be 0.7, 0.8, 0.9, 1, 1.1, 1.2, 1.3. When the ratio is greater than 1.3, the entire blocking portion will be too close to the floor brush, making it more difficult for the user to dock and install the surface cleaning device with the base, and it is easy to cause unnecessary bumps during the installation process, causing scratches or damage to the surface. When the ratio is less than 0.7, it will affect the speed at which the cross-sectional area of ​​the guide channel decreases, thereby affecting the cleaning effect of the cleaning area.

[0052] In the preferred implementation of this embodiment, one end 3210 of the blocking portion 320 is detachably mounted on the rib 330, and the other end 3220 cooperates with the roller brush cover 204. It is understandable that the other end 3220 is close to the roller brush cover, specifically, there may be a very small gap, or they may be directly abutted. By detachably setting the blocking portion on the base, it is convenient for users to disassemble and clean it. Specifically, one end 3210 of the blocking portion 320 includes a first side plate 3211 and a second side plate 3212, and one end of the first side plate and the second side plate intersect to form a groove 3230 mounted on the rib 330. By arranging a groove 3230 with an opening facing downward on the blocking portion and using it to be mounted on the outer surface of the rib 330, it is directly mounted on the rib from top to bottom, which makes installation more convenient, and its installation direction is consistent with the forward tangent direction of the cleaning roller, which can reduce the dirt and dirty liquid thrown out when the cleaning roller rotates forward and enters between the groove and the rib. More specifically, an elastic member for contacting with the roller brush cover is provided on the other end 3220. By providing the elastic member on the other end 3220, the user can reduce the hard collision between the floor brush and the blocking part 320 when docking the surface cleaning device with the base, and utilize the elasticity of the elastic member to facilitate the docking installation of the user.

[0053] In a possible implementation of this embodiment, the blocking portion 320 is formed on the roller brush cover 204, and the blocking portion 320 extends from the front edge of the roller brush cover toward the base 30. Specifically, the blocking portion is detachably arranged on the front side of the roller brush cover or integrally fixed to the roller brush cover, and the other end of the blocking portion is also provided with an elastic member for abutting against the base.

[0054] Furthermore, a first arcuate surface 2041 is formed on the inner side of the front portion of the roller brush cover, and a second arcuate surface 3240 facing the roller brush is formed on the blocking portion, and a non-smooth transition is formed between the first arcuate surface 2041 and the second arcuate surface 3240. Specifically, in the present embodiment, the first arcuate surface 2041 and the second arcuate surface 3240 form a non-smooth transition at the second end 3220 of the blocking portion 320. By setting the first arcuate surface and the second arcuate surface as a non-smooth transition, the cross-sectional area of ​​the guide channel is suddenly changed here, increasing the sudden change of state of the winding objects, especially the clumped winding objects, here, thereby increasing the probability of being driven to the sewage suction port by the cleaning roller. More specifically, the second arcuate surface is coaxial with the cleaning roller, and the radius of the second arcuate surface is greater than the radius of the first arcuate surface, thereby further increasing the probability of being driven to the sewage suction port by the cleaning roller.

[0055] The cleaning roller is separated from the scraping member in the second state to form a gap between the scraping member and the cleaning roller that is connected to the guide channel. More specifically, when the cleaning roller and the scraping member are in a self-cleaning state in which they interfere with each other, there is a first interference amount between the cleaning member and the scraping member, and when the cleaning roller and the scraping member are in a self-cleaning state in which they are separated from each other, there is a first gap amount between the cleaning member and the scraping member, wherein the first gap amount is greater than or equal to the first interference amount. When the cleaning roller moves a certain distance relative to the comb teeth, the width of the first gap can be increased as much as possible to reduce the probability of dirt being blocked by the wiping member, especially when there are strips or clumps of entangled objects, it is reduced that the dirt is affected by the wiping member and hooked on the comb teeth and other parts of the wiping member, thereby improving the effect of removing the entangled objects, and can also improve the wiping effect of the roller brush cavity during the rotation of the clumps of entangled objects driven by the cleaning roller.

[0056] After cleaning the surface to be cleaned, the surface cleaning device docks with the base 30 so that the roller brush is located in the cleaning tank and starts self-cleaning automatically or in response to a user manually triggering a start switch. The technical solution of the self-cleaning method of the surface cleaning system is described below.

[0057] In this embodiment, the self-cleaning method of the surface cleaning device includes a soaking stage and a decontamination stage. In the soaking stage, the water supply component is controlled to work so as to provide cleaning liquid to the cleaning tank and / or the roller brush. As described in the background technology, the cleaning liquid is first provided to the cleaning tank through the water distribution plate, so that the cleaning member can fully absorb water, thereby dissolving the dirt on the cleaning member. During the rotation of the cleaning member, it is easier to throw off the dissolved dirt or scrape it with a wiping member. As an optional embodiment of this embodiment, in the soaking stage, the cleaning member and the scraping member are in a first state. As a preferred embodiment of this embodiment, in the soaking stage, the cleaning member and the scraping member are in a second state. When the water outlet on the water distribution plate supplies liquid, the cleaning liquid washes the large volume of dirt adhering to the back of the scraping member or the area between the water outlet and the wiping member, so that it is washed and falls into the cleaning tank through the gap between the cleaning member and the scraping member.

[0058] In the decontamination stage of this embodiment, Fig.14 As shown, the first state and the second state are switched at least once, and the cleaning member is switched forward and reverse.

[0059] In this embodiment, the first state and the second state are switched during the dirt removal stage, and in particular, in the second state, there is a gap between the cleaning member and the wiping member, so that the gap forms a transfer channel for large particles or large volumes of dirt during the self-cleaning process, reducing or even avoiding the accumulation of surface dirt on the back of the wiping member or other areas of the roller brush chamber. In the first state, the cleaning member is in interference contact with the wiping member, and the cleaning member can scrape or throw out the dirt attached or stuck between the bristles of the roller brush by scraping against the wiping member when the cleaning member rotates. In addition, during the dirt removal stage, the cleaning member also switches between forward and reverse rotations, and can scrape or throw out the dirt mixed between the bristles from both the forward and reverse directions by rotating the cleaning member in two directions, further improving the cleaning effect.

[0060] It can be understood that the forward and reverse switching of the cleaning member can be first forward and then reverse, or first reverse and then forward; the switching of the first state and the second state can be from the first state to the second state, or from the second state to the first state; the cleaning member can be switched forward and reverse in the first state, or in the second state, or in both the first state and the second state. Figures 6 to 8 For example, based on the reference direction of the attached figure, if the counterclockwise rotation of the cleaning member is defined as positive rotation, then the clockwise rotation of the cleaning member is reverse rotation; if the clockwise rotation of the cleaning member is defined as positive rotation, then the counterclockwise rotation of the cleaning member is reverse rotation. The following embodiments will be described by taking the counterclockwise rotation of the cleaning member as positive rotation as an example. The preset number of cycles is the cycle period, which can be 1, 2, 3 or more. The following is an example of the self-cleaning method of the surface cleaning system.

[0061] Embodiment 1:

[0062] In this embodiment, the dirt removal stage includes a first dirt removal step, in which the cleaning member is in a first state and the cleaning member switches between forward and reverse rotations.

[0063] In one implementation of this embodiment, the cleaning member is in the second state and keeps rotating forward or reverse for a preset time before entering the first decontamination step, so that the cleaning member is in the first state and switches between forward and reverse rotation. It is understandable that when the cleaning member is in the second state, the cleaning member can continue to rotate forward, can continue to rotate reversely, or can alternately rotate forward and reversely. In the second state, the cleaning member that is fully soaked and absorbed rotates, and large particles of dirt are more affected by centrifugal force and are more likely to be thrown off; on the other hand, most of the liquid is thrown out and impacts the roller brush cavity wall under the action of centrifugal force, thereby vigorously flushing the dirt adhered to the roller brush cavity wall, especially the large particles of dirt, so as to flush the large particles of dirt first, avoiding the large particles of dirt from being stuck in the first state. Then the control is switched from the second state to the first state, at which time the water content of the cleaning member itself has been significantly reduced, the cleaning member and the wiping member are in contact, and the scraped cleaning liquid flushes the small particles of dirt that may remain adhered to the back of the wiping member in the case of reversal.

[0064] like Fig.15 As shown, in a preferred implementation of this embodiment, the cleaning member maintains the first state in the first decontamination step, and the cleaning member switches to the second state after continuously rotating forward and reversely for a preset time, and rotates forward or reversely in the second state. It can be understood that after switching to the second state, the cleaning member can continue to rotate forward, can continue to rotate reversely, or can rotate forward and reverse alternately. The cleaning member that has been soaked and absorbed water is first switched forward and reversely in the first state, which can not only use the centrifugal force when the cleaning member rotates to brush out and separate the dirt dissolved in the water, but also use the soaked cleaning member to abut against the wiping member, so that the dirt dissolved in the water is separated from the cleaning member together with the liquid scraped off by the wiping member. Then switch to the second state and keep rotating forward or reversely, so that the dirty liquid that is partially brushed out and flows down along the wall of the roller brush cavity in the second state can flow smoothly through the gap between the cleaning member and the wiping member. Especially when there are entangled objects in the roller brush cavity at the same time, there may be problems such as hair entangled on the outer surface of the cleaning roller and hair hooked on the comb teeth of the wiping element or the metal scraping strip. These dirts are light, loose and sparse, and are difficult to remove by forward or reverse rotation alone. In the first state, the cleaning element rotates alternately in forward and reverse directions, and the contact between the cleaning element and the wiping element is utilized to simulate the working principle of "rubbing hemp rope", so as to rub this type of dirt into strips of dirt, thereby increasing its removability.

[0065] Furthermore, in the preferred implementation of this embodiment, the first decontamination stage includes steps S100 and S200. In step S100, the roller brush switches forward and reverse for a preset number of times; in step S200, the roller brush switches forward and reverse for a preset number of times. Between steps S100 and S200, the water supply component supplies liquid for a preset time, and during the period when the water supply component supplies liquid, the roller brush and the fan both stop working. On the one hand, the cleaning liquid is relatively concentrated, and the area where the bristles expand is also relatively concentrated, so that the loosening effect of the entanglement is better, and the cleaning liquid is prevented from being dispersed by the rotation of the roller brush or directly sucked away by the fan.

[0066] In the preferred implementation of this embodiment, the dirt suction assembly operates continuously during the rotation of the cleaning element in the dirt removal stage. During the entire dirt removal stage, dirt separated from the roller brush chamber, the cleaning element or the back of the wiping element is sucked away through the dirt suction port and stored in the sewage bucket, so as to prevent dirt from being carried by the cleaning element and stuck on the back of the wiping element or adhering to the roller brush chamber to cause secondary pollution.

[0067] In a preferred implementation of this embodiment, before the cleaning member switches to the second state, it also includes a water supply step and keeps the cleaning member stopped. When the cleaning member is still in the first state, the liquid supply is turned on. Since the water supply port is located above the wiping member, the cleaning liquid is blocked by the wiping member and accumulates in the area above the wiping member, and the bristles in this area can absorb water faster and more evenly. In particular, when there are entangled objects in the roller brush chamber at the same time, the liquid supply component starts the liquid supply first, so that the strip-shaped dirt that has not been removed in the aforementioned first decontamination step absorbs water and further expands. When the cleaning member is in the second state, the distance between the cleaning roller and the wiping member increases to form a gap. At this time, the forward or reverse rotation of the cleaning roller can drive the strip-shaped entangled objects to the dirt suction port more quickly.

[0068] A specific implementation of the above preferred embodiment is: control the cleaning part to switch to the first state, turn on the fan and reverse for 2 seconds, then forward for 2 seconds and cycle 6 times; keep the fan and cleaning roller stopped in the first state, and the cleaning part switches to the second state after the water supply component supplies 14 grams of liquid.

[0069] In this embodiment, the self-cleaning method also includes a dirt suction stage: the cleaning member is in the first state, the cleaning member keeps rotating and the fan keeps running. In the dirt removal stage, the fan keeps running while the cleaning member rotates, and there may be some dirt that cannot be taken away by the fan. By adding a dirt suction step, in which the cleaning member is in the first state, the roller brush chamber space above the wiping member is not within the effective area of ​​the fan due to the isolation of the wiping member, thereby increasing the suction force of the fan and ensuring that the remaining dirt is completely sucked away. In order to further improve the cleaning effect, the fan power at this time can be higher than the fan power in the dirt removal stage.

[0070] Furthermore, in the dirt suction stage, the cleaning member in the first state rotates alternately in forward and reverse directions. In order to further improve the cleaning effect, the forward rotation duration of the cleaning member is set to be greater than or equal to the reverse rotation duration of the cleaning member. The cleaning member rotates alternately in forward and reverse directions so that the dirt on both sides of the bristles can be sucked away by the fan. When the cleaning member rotates forward, under the joint action of the wiping member, most of the dirt can be scraped by the wiping member and sucked away by the fan. At this time, a small amount of dirt on the other side of the bristles only needs a shorter reverse rotation to be sucked away by the fan. In this case, setting the forward rotation duration of the cleaning member to be greater than or equal to the reverse rotation duration of the cleaning member can better improve the cleaning efficiency of the cleaning member while taking into account the cleaning effect, and avoid the bristles being scratched by the wiping member due to the long-term rotation of the cleaning member, which shortens the life of the bristles.

[0071] As mentioned above, there may still be some dirt in the roller brush cavity that is sucked away by the fan during the dirt removal stage. This part of the dirt is likely to be light in weight and has strong adhesion. In order to further deal with this part of the dirt, before the dirt suction component in the dirt suction stage is operated, the water supply component also includes a preset liquid supply time, so that the dirt group remaining in the roller brush cavity increases in weight due to water absorption, and is more easily sucked away by the fan.

[0072] In this embodiment, a specific implementation of the above-mentioned sewage suction stage is: after the liquid supply component supplies liquid for 30 seconds, the fan is started, and at the same time, the roller brush rotates forward for 20 seconds in the first state, then reverses for 5 seconds, and finally ends after rotating forward for 20 seconds.

[0073] Embodiment 2:

[0074] In this embodiment, the dirt removal stage includes a second dirt removal step, in which the cleaning member is in a second state and the cleaning member switches between forward and reverse rotations.

[0075] In one implementation of this embodiment, Fig.16As shown, the cleaning member is in the first state and keeps rotating forward or reverse for a preset time before entering the second dirt removal step, so that the cleaning member is in the second state and switches forward or reverse. When the cleaning member is in the first state and keeps rotating forward for a preset time, the cleaning member, after soaking and absorbing water, first rotates forward or reverse in the first state, and the dirt dissolved in the water can be brushed out and separated by the centrifugal force when the cleaning member rotates, and the soaked cleaning member can also be used to abut against the wiping member, so that the dirt dissolved in the water is separated from the cleaning member together with the liquid scraped off by the wiping member. Then the cleaning member is in the second state, so that a gap is formed between the cleaning member and the wiping member, on the one hand, the dirt or dirty liquid accumulated on the back of the wiping member or adhered to the wall of the roller brush cavity in the first state of the cleaning member passes through the gap between the cleaning member and the wiping member; on the other hand, the dirt or dirty liquid adhered to the wall of the roller brush cavity thrown out by the cleaning member when switching forward or reverse in the second state can also pass through the gap between the cleaning member and the wiping member. Especially when there are entangled objects in the roller brush chamber, in the second state, the pressure of the entangled objects hooked on the comb teeth or metal scraper strip of the wiping member is released and the volume changes, and the entangled objects are driven to detach from the comb teeth or metal scraper strip and pass through the gap by switching the cleaning member forward and reverse.

[0076] In another implementation of this embodiment, the cleaning member maintains the second state in the second decontamination step and performs forward and reverse switching operation for a preset time, and then maintains the first state and rotates forward or reversely. When the cleaning member is in the second state, the forward and reverse cycle is maintained for a preset time. The cleaning member after soaking and absorbing water uses the centrifugal force during rotation to brush out most of the dirt mixed in the cleaning liquid and separate from the cleaning member. The dirt or dirty liquid that is partially separated from the cleaning member may be thrown into the roller brush chamber and flow downward along the roller brush chamber under gravity and pass through the gap between the cleaning liquid and the wiping member. Then the cleaning member is kept in the first state and rotates forward or reversely, so as to further scrape off the dirt hidden at the root of the bristles on the cleaning member. As a specific implementation method in this embodiment, it rotates forward in the first state. When there is a tangled object in the roller brush chamber, the pressure of the tangled object scraped at the comb teeth or metal scraping strip of the wiping member in the second state is released and the volume changes. Through the forward and reverse switching of the cleaning member, the bristles are driven to separate from the comb teeth or metal scraping strip and pass through the gap. Compared with the aforementioned embodiment, the cleaning effect of the tangled object in this embodiment is earlier.

[0077] In the above implementation of this embodiment, the dirt suction assembly operates continuously during the rotation of the cleaning element in the dirt removal stage, so that during the entire dirt removal stage, dirt separated from the roller brush chamber, the cleaning element or the back of the wiping element is sucked away through the dirt suction port and stored in the sewage bucket, thereby preventing dirt from being carried by the cleaning element and stuck on the back of the wiping element or adhering to the roller brush chamber to cause secondary pollution.

[0078] In the above-mentioned embodiment, before the second decontamination step, a water supply step is also included and the cleaning member is kept stationary. When the cleaning member is still in the first state, the liquid supply is turned on. Since the water supply port is located above the wiping member, the cleaning liquid is blocked by the wiping member and accumulates in the area above the wiping member, and the bristles in this area can absorb water faster and more evenly. In particular, when there are entanglements in the roller brush chamber, the liquid supply component starts the liquid supply first, so that when the cleaning member rotates forward or reversely, the dirt accumulated on the back of the wiping member can be washed toward both ends along the axial direction of the cleaning member. When there are entanglements in the roller brush chamber, the entanglements scraped on the comb teeth or metal scraping strips of the wiping member absorb water and expand and change in weight, so as to facilitate the detachment of the comb teeth or metal scraping strips in the second state.

[0079] Furthermore, in this embodiment, after the dirt removal stage, a dirt suction stage as described in the first embodiment is also included. The working process of the dirt suction stage is the same as that of the first embodiment and will not be repeated here.

[0080] Embodiment three:

[0081] In this embodiment, the dirt removal stage includes a first dirt removal step and a second dirt removal step, wherein in the first dirt removal step, the cleaning element is in a first state, and the cleaning element switches between forward and reverse directions; in the second dirt removal step, when the cleaning element is in a second state, the cleaning element switches between forward and reverse directions.

[0082] In one implementation of this embodiment, the second decontamination step is first run, in which the cleaning element is in the second state and switches forward and reverse; then the first decontamination step is entered, in which the cleaning element is in the first state and switches forward and reverse. The second decontamination step is first run, in which the cleaning element is in the second state and switches forward and reverse. After the cleaning element is soaked and absorbed, the cleaning element uses the centrifugal force during rotation to brush most of the dirt mixed in the cleaning liquid out of the cleaning element. Some of the dirt or dirty liquid that has been separated from the cleaning element may be thrown into the roller brush chamber and flow downward along the roller brush chamber under gravity and pass through the gap between the cleaning liquid and the wiping element. Before entering the first decontamination step, the cleaning element is in the first state and switches forward and reverse, so that the dirt mixed in the roots of the bristles can be further scraped off by the wiping element, further improving the cleaning effect. When there are still entangled objects in the roller brush chamber, in the second dirt removal stage, the pressure of the entangled objects scraped on the comb teeth of the wiping member or the metal scraping strip is released and the volume changes, and the forward and reverse cycles during the rotation of the roller brush can remove it, and the entangled objects can be basically cleaned up in the second dirt removal stage.

[0083] In the preferred implementation of this embodiment, Fig.17As shown, the first dirt removal step is first run, and the cleaning member switches forward and reverse in the first dirt removal step; then the second dirt removal step is entered, and the cleaning member switches forward and reverse in the second dirt removal step. The first dirt removal step is first run, and the cleaning member is in the first state and switches forward and reverse. On the one hand, the centrifugal force of the cleaning member during rotation is used to brush out the dirt dissolved in the water to separate from the cleaning member. On the other hand, the soaked cleaning member is brought into contact with the wiping member, and the dirt dissolved in the water is separated from the cleaning member along with the liquid scraped off by the wiping member, thereby achieving better cleaning of the cleaning member. Then it switches to the second state, and in the second state, part of the dirty liquid that is brushed out and flows down along the wall of the roller brush chamber flows smoothly through the space between the cleaning member and the wiping member, so that the roller brush chamber can be better cleaned and the cleaned dirt can be transferred in a timely and effective manner. In addition, especially when there are a lot of hair, pets and other entanglements during the cleaning process, there may be problems such as hair entangled on the outer surface of the cleaning roller and hair hooked on the comb teeth of the wiping piece or the metal scraping strip. These dirt are light, loose and sparse, and are difficult to remove by forward or reverse rotation alone. By alternating forward and reverse rotations and making contact between the cleaning piece and the wiping piece, the working principle of "rubbing hemp rope" is simulated to rub this type of dirt into strips, thereby increasing its removability.

[0084] In addition, in the above preferred embodiment, in the presence of entanglements, it is still possible that a small amount of entanglements are entangled on the surface of the cleaning roller brush and cannot be rubbed into strips. For this reason, in the first decontamination step, before at least one forward and reverse switching cycle of the cleaning member, the water supply component is also controlled to supply liquid. This allows the cleaning liquid to be absorbed more by the cleaning roller brush. In addition, when entanglements are involved in the cleaning process, the strip-shaped dirt rubbed into one of the above embodiments absorbs water and expands, making it easier to be scraped off by the wiping member; on the other hand, for the small amount of entanglements still entangled on the surface of the cleaning roller in the aforementioned embodiment, the bristles of the cleaning roller absorb water and expand, and the entanglements wrapped on its surface are loosened by its expansion force, untangled and gradually peeled off the surface of the roller brush under the scraping action of the wiping member, and then formed into strips or directly sucked away. Preferably, in this embodiment, the first decontamination stage includes steps S100 and S200, in which the roller brush switches forward and reverse for a preset number of times in step S100; in step S200, the roller brush switches forward and reverse for a preset number of times, and between steps S100 and S200, the water supply component supplies liquid for a preset time, and during the period when the water supply component supplies liquid, the roller brush and the fan both stop working. On the one hand, the cleaning liquid is relatively concentrated, and the area where the bristles expand is also relatively concentrated, so that the loosening effect of the entanglement is better, and the cleaning liquid is prevented from being dispersed by the rotation of the roller brush or directly sucked away by the fan.

[0085] Furthermore, in the second decontamination step, after the liquid supply component supplies liquid for a preset time, the cleaning member is controlled to be in the second state, and then the cleaning member switches forward and reverse. First, the liquid supply is turned on when the cleaning member is still in the first state. Since the water supply port is located above the wiping member, the cleaning liquid is blocked by the wiping member and accumulates in the area above the wiping member. When the cleaning member reverses, the bristles first absorb the cleaning liquid and then are scraped off by the wiping member, thereby scraping off the dirt on the bristles and flushing to the two ends of the wiping member with the cleaning liquid, thereby preventing dirt from accumulating on the back of the wiping member. When there are entanglements during the cleaning process, the liquid supply component first starts the liquid supply, so that the strip-shaped dirt that has not been removed in the aforementioned first decontamination step absorbs water and further expands. When the cleaning member is in the second state, the distance between the cleaning roller and the wiping member becomes larger to form a gap. At this time, the forward and reverse rotation of the cleaning roller can make the strip-shaped entanglements further gather to form a larger mass or a thicker and shorter strip, which is easier to remove. Specifically, while the cleaning element is switching between forward and reverse rotations, the fan is continuously turned on to transfer the entangled objects to the outside of the roller brush cavity.

[0086] As a specific method of this embodiment, in step S100: the cleaning part first reverses for 2 seconds and then rotates forward for 2 seconds as a cycle, and the forward and reverse cycles are repeated 6 times, and at the same time, the fan is continuously turned on. In step S200: after the liquid supply component supplies liquid for N seconds, wait for 10 seconds, and then the cleaning part first reverses for 2 seconds and then rotates forward for 2 seconds as a cycle, and the forward and reverse cycles are repeated 6 times, and the fan is continuously turned on while the cleaning part rotates. Then enter the second decontamination step: after the liquid supply component supplies liquid for N seconds, control the cleaning part to be in the second state, and the cleaning part first reverses for 2 seconds and then rotates forward for 2 seconds as a cycle, and the forward and reverse cycles are repeated 5 times, and the fan is continuously turned on while the cleaning part rotates.

[0087] Furthermore, in this embodiment, after the dirt removal stage, a dirt suction stage as described in the first embodiment is also included. The working process of the dirt suction stage is the same as that of the first embodiment and will not be repeated here.

[0088] Embodiment 4:

[0089] In this embodiment, the dirt removal stage includes a third dirt removal step, in which the cleaning member rotates forward in the first state and reverses in the second state, and / or the cleaning member rotates forward in the second state and reverses in the first state, and the first state or the second state is switched. That is, in the third dirt removal step, the cleaning member rotates unidirectionally in the first state or the second state.

[0090] In this embodiment, possible implementations include but are not limited to the following:

[0091] Situation 1: First, the cleaning element rotates forward for a preset time in the first state, and then rotates reversely for a preset time in the second state, and the cycle repeats for a preset number of times;

[0092] Situation 2: First, the cleaning element in the first state rotates in reverse for a preset time, and then in the second state, the cleaning element rotates forward for a preset time, and the cycle repeats for a preset number of times;

[0093] Situation 3: First, the cleaning element rotates forward for a preset time in the second state, and then reverses for a preset time in the first state, and repeats for a preset number of times;

[0094] Situation 4: First, the cleaning element in the second state rotates in reverse for a preset time, and then in the first state, the cleaning element rotates forward for a preset time, and the cycle repeats for a preset number of times;

[0095] Situation 5: First, the cleaning element rotates forward for a preset time in the second state, then reverses for a preset time in the first state, and repeats for a preset number of times; then, the cleaning element rotates forward for a preset time in the first state, then reverses for a preset time in the second state, and repeats for a preset number of times;

[0096] Scenario 6: First, the cleaning element rotates forward for a preset time in the second state, then reverses for a preset time in the first state, and repeats a preset number of times; then, the cleaning element switches to the second state and reverses for a preset time, then rotates forward for a preset time in the first state, and repeats a preset number of times;

[0097] Scenario 7: After the cleaning element rotates forward for a preset time in the first state, it rotates reversely for a preset time in the second state, and the cycle repeats for a preset number of times; after the cleaning element rotates forward for a preset time in the second state, it rotates reversely for a preset time in the first state, and the cycle repeats for a preset number of times;

[0098] Situation 8: In the first state, the cleaning element rotates forward for a preset time, then reverses for a preset time in the second state, and cycles a preset number of times; after switching to the first state, the cleaning element reverses for a preset time, then rotates forward for a preset time in the second state, and cycles a preset number of times.

[0099] The following is an explanation of situation 7 as a preferred implementation of this embodiment. Fig.18As shown, in this preferred embodiment, the third decontamination step includes step S300: the cleaning member rotates forward for a preset time in the first state and then reverses for a preset time in the second state, and the cycle is preset times; step S400: the cleaning member rotates forward for a preset time in the second state and then reverses for a preset time in the first state, and the cycle is preset times. While the cleaning member rotates in steps S300 and S400, the fan is continuously turned on. In the first state, the roller brush rotates forward, and the wiping element is used to scrape off most of the dirt particles on the surface of the roller brush. At this time, the dirt that is hooked or mixed between the cleaning element and the wiping element is the most, so the cleaning element is switched to the second state and reversed, thereby shaking out or taking off the dirt mixed between the cleaning element and the wiping element, so that the dirt can be quickly sucked away by the brush; then, the cleaning element is kept in the second state, and the cleaning element rotates forward to shake out the dirt on the other side of the bristles; finally, it is switched back to the first state, at which time the dirty liquid on the roller brush has been basically thrown out, and the bristles of the roller brush can stand up during the reversal of the cleaning element, and the dirt attached to the water dividing plate and / or the comb teeth can be taken away by the standing bristles, especially the dirt adhering to the back of the wiping element can be wiped clean. As a specific implementation method of this situation: Step S300: the roller brush rotates forward for 10 seconds in the first state, then switches to the second state and reverses for 10 seconds, and repeats twice; then Step S400: stays in the second state and rotates forward for 10 seconds, then switches to the first state and reverses for 10 seconds, and repeats twice.

[0100] Furthermore, in this embodiment, after the dirt removal stage, a dirt suction stage as described in the first embodiment is also included. The working process of the dirt suction stage is the same as that of the first embodiment and will not be repeated here.

[0101] Embodiment five:

[0102] In this embodiment, the decontamination stage includes the first decontamination step in the first embodiment and the third decontamination step in the fourth embodiment.

[0103] As an optional implementation of this embodiment, in the decontamination stage, the third decontamination step is performed first and then the first decontamination step.

[0104] As a preferred implementation of this embodiment, Fig.19 As shown, in the decontamination stage, the first decontamination step is performed first and then the third decontamination step is performed. Since the cleaning element is in the first state in the first decontamination step, it is first switched to the second state in the third decontamination step, and then switched to the first state again and reversed for a preset time after running forward for a preset time, or switched to the first state again and ran forward for a preset time after running reversely for a preset time, and the cycle is repeated for a preset number of times.

[0105] As a situation of this preferred embodiment: the cleaning element maintains the first state of forward and reverse circulation and the fan runs for a preset time at the same time, and enters the third decontamination step after the preset cycle.

[0106] As another situation of this preferred embodiment: the first decontamination stage includes step S100 and step S200, in step S100, the roller brush switches forward and reverse for a preset number of times; in step S200, the roller brush switches forward and reverse for a preset number of times, between steps S100 and S200, the water supply component supplies liquid for a preset time, and during the period when the water supply component supplies liquid, the roller brush and the fan both stop working. On the one hand, the cleaning liquid is relatively concentrated, and the area where the bristles expand is also relatively concentrated, so that the loosening effect of the entanglement is better, and the cleaning liquid is prevented from being dispersed by the rotation of the roller brush or directly sucked away by the fan.

[0107] For example, one specific method is: control the cleaning part to switch to the first state, turn on the fan and reverse for 2 seconds, then forward for 2 seconds and cycle 6 times; switch to the second state and rotate forward for 10 seconds, then switch to the first state and reverse for 10 seconds and cycle 2 times.

[0108] Furthermore, in this embodiment, after the dirt removal stage, a dirt suction stage as described in the first embodiment is also included. The working process of the dirt suction stage is the same as that of the first embodiment and will not be repeated here.

[0109] Embodiment six:

[0110] In this embodiment, the decontamination stage includes the second decontamination step in the second embodiment and the third decontamination step in the fourth embodiment.

[0111] As an optional implementation of this embodiment, in the decontamination stage, the third decontamination step is performed first and then the second decontamination step.

[0112] As a preferred implementation of this embodiment, Fig. 20 As shown, in the decontamination stage, the second decontamination step is performed first and then the third decontamination step is performed. Specifically, since the cleaning element is in the second state in the second decontamination step, the third decontamination step is first switched to the first state, and the fan is rotated forward and runs for a preset time, then switched to the second state, and the fan is reversed and runs for a preset time, and the cycle is repeated for a preset number of times.

[0113] Furthermore, in this embodiment, after the dirt removal stage, a dirt suction stage as described in the first embodiment is also included. The working process of the dirt suction stage is the same as that of the first embodiment and will not be repeated here.

[0114] Embodiment seven:

[0115] In this embodiment, the decontamination stage includes the first decontamination step and the second decontamination step in the third embodiment and the third decontamination step in the fourth embodiment.

[0116] As a preferred implementation of this embodiment, Fig.21As shown, in the decontamination stage, the first decontamination step, the second decontamination step, and the third decontamination step are sequentially arranged. Specifically, the first decontamination stage includes steps S100 and S200. In step S100, the cleaning roller is switched to the first state, the fan is turned on, and the roller brush switches forward and reverse for a preset number of cycles. The roller brush and the fan stop working. After the water supply component supplies liquid for a preset time, the fan is turned on, and the roller brush switches forward and reverse for a preset number of cycles to enter the second decontamination step. In the second decontamination step, the liquid supply component switches to the second state after the liquid supply is preset for a preset time, the fan is turned on, and the roller brush switches forward and reverse for a preset number of cycles to enter the third decontamination step. In the third decontamination step, the fan is started and the cleaning roller switches to the first state, the roller brush switches to the second state after the preset forward rotation time, the roller brush reverses for a preset time, and after the preset number of cycles, the cleaning roller keeps rotating forward in the second state, and the roller brush switches to the first state after the preset forward rotation time and reverses for a preset time, and cycles for a preset number of times.

[0117] Furthermore, in this embodiment, after the dirt removal stage, a dirt suction stage as described in the first embodiment is also included. The working process of the dirt suction stage is the same as that of the first embodiment and will not be repeated here.

[0118] A specific self-cleaning method process of the preferred implementation mode of this embodiment is as follows:

[0119] Flushing stage: the cleaning element is controlled to be in the second state, the liquid supply component supplies liquid, and after the liquid supply is completed, the cleaning element switches to the first state;

[0120] The first decontamination step: the fan is turned on, and the cleaning part reverses for 2 seconds and then rotates forward for 2 seconds and cycles 6 times; the water supply component supplies liquid for 10 seconds and then enters step S200, in which the fan is turned on, and the cleaning part reverses for 2 seconds and then rotates forward for 2 seconds and cycles 6 times;

[0121] The second decontamination step: after the liquid supply component supplies 14 grams of liquid, the cleaning element is controlled to be in the second state, the cleaning element first reverses for 2 seconds and then rotates forward for 2 seconds as a cycle, and the forward and reverse cycles are repeated 5 times, and the fan is continuously turned on while the cleaning element rotates;

[0122] The third dirt removal step: the roller brush switches to the first state, rotates forward for 10 seconds in the first state, then switches to the second state and reverses for 10 seconds, and repeats twice; then remains in the second state and rotates forward for 10 seconds, then switches to the first state and reverses for 10 seconds, and repeats twice.

[0123] Sewage suction stage: After the liquid supply component supplies liquid for 30 seconds, the fan starts, and the roller brush rotates forward for 20 seconds in the first state, then reverses for 5 seconds, and finally ends after rotating forward for 20 seconds.

Claims

1. A surface cleaning system, comprising a surface cleaning device and a base, wherein the surface cleaning device comprises a floor brush having a cleaning roller, a roller brush cover and a scraping member, wherein the base is provided with a cleaning groove corresponding to the cleaning roller, wherein the surface cleaning device is docked with the base so that the cleaning roller can self-clean in the cleaning groove, wherein: A blocking portion is provided between the roller brush cover and the base, and the floor brush further comprises a driver, which drives the cleaning roller to move toward the blocking portion.

2. The surface cleaning system according to claim 1, characterized in that The cleaning roller comprises a first state interfering with the scraping member and a second state separated from the scraping member, and the driver drives the cleaning roller to move toward the blocking portion to form the second state; The driver drives the cleaning roller to move toward the scraping member to form a first state.

3. The surface cleaning system according to claim 2, characterized in that The base is also provided with a rotary driver, which drives the cleaning roller to rotate forward and reversely.

4. The surface cleaning system according to claim 1, characterized in that The cleaning tank comprises a rib forming the cleaning tank, one end of the blocking portion is detachably mounted on the rib, and the other end is matched with the roller brush cover.

5. The surface cleaning system according to claim 4, characterized in that One end of the blocking portion includes a first side plate and a second side plate, and one end of the first side plate intersects with one end of the second side plate to form a groove clamped on the rib.

6. The surface cleaning system according to claim 4, characterized in that An elastic member for contacting with the roller brush cover is arranged on the other end of the blocking portion.

7. The surface cleaning system of claim 1, wherein: A first arcuate surface is formed on the inner side of the front portion of the roller brush cover, and a second arcuate surface facing the roller brush is formed on the blocking portion, and there is a non-smooth transition between the first arcuate surface and the second arcuate surface.

8. The surface cleaning system according to claim 7, characterized in that The second arc-shaped surface is coaxial with the cleaning roller, and a radius of the second arc-shaped surface is greater than a radius of the first arc-shaped surface.

9. The surface cleaning system of claim 1, wherein: The cleaning roller includes side plates pivotally connected to each other, and the driver drives the side plates to move, wherein the side plates are exposed to the side walls of the floor brush.

10. The surface cleaning system of claim 1, wherein: In a first state where the cleaning roller and the scraping member interfere with each other, there is a first interference between the cleaning member and the scraping member. In a second state where the cleaning roller and the scraping member are separated from each other, there is a first gap between the cleaning member and the scraping member, wherein the first gap is greater than or equal to the first interference.

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