Floor brush mechanism, cleaning equipment and cleaning system

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a floor brush mechanism, cleaning equipment and a cleaning system. The floor brush mechanism comprises a water tank assembly and a rolling brush assembly. The water tank assembly comprises a sewage tank which comprises a tank body. An inner cavity of the box body is divided into a first cavity and a second cavity by the dry-wet separation part, the first cavity is located on the upper side of the dry-wet separation part, the second cavity is located on the lower side of the dry-wet separation part, the dry-wet separation part is provided with a water outlet communicating with the first cavity and the second cavity, a fence is arranged around the water outlet, and the fence is provided with an overflowing opening communicating with the two sides of the fence; the backflow prevention device is arranged at the water outlet and is constructed to enable the sewage in the first chamber to flow to the second chamber in a one-way manner; the rolling brush assembly is arranged on the side, in the first direction, of the sewage tank and is constructed to drive sewage to flow into the first cavity through rotation of the rolling brush assembly. According to the floor brush mechanism, dry and wet separation of sewage can be achieved, sewage recycling is smoother, and sewage backflow and overflow are prevented.

Description

[0001] The present application claims priority to the Chinese patent application No. 202422390491.7, filed on September 29, 2024, entitled "Floor brush assembly and cleaning device", the whole content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of cleaning devices, in particular to a floor brush mechanism, a cleaning device and a cleaning system. BACKGROUND

[0003] Generally, a vacuum cleaner can be used to suck up dust, debris, hair and other garbage on the ground, which can meet the daily household cleaning needs of people. However, in daily life, sometimes there will be water stains on the ground, and the traditional vacuum cleaner cannot clean the position with water stains well.

[0004] In order to solve the above technical problems, a scrubber or a mop can be used to process the ground with water stains. However, the scrubber and the mop cannot well process dry dust, debris and the like, and are relatively troublesome to use, and the scrubber is relatively high in price and cannot be universally applied to ordinary families. CONTENT OF THE INVENTION

[0005] In view of the above problems, the present application provides a floor brush mechanism, a cleaning device and a cleaning system, which can solve the problem that the floor brush assembly of the vacuum cleaner in the prior art cannot process sewage.

[0006] In one aspect, the present application provides a floor brush mechanism, comprising a water tank assembly and a roller brush assembly. The water tank assembly comprises a sewage tank. The sewage tank comprises: a tank body; a dry-wet separation piece, which separates an inner cavity of the tank body into a first chamber and a second chamber, the first chamber is located on the upper side of the dry-wet separation piece, and the second chamber is located on the lower side of the dry-wet separation piece, the dry-wet separation piece is provided with a drain opening communicating the first chamber and the second chamber, a fence is provided around the drain opening, and the fence has a flow opening communicating both sides of the fence; and an anti-backflow device, which is arranged at the drain opening and is configured to allow the sewage in the first chamber to flow to the second chamber in one direction. The roller brush assembly is arranged on one side of the sewage tank along a first direction and is configured to drive the sewage to flow into the first chamber through rotation of the roller brush assembly.

[0007] Thus, by arranging the dry-wet separation piece, solid impurities and liquid in the sewage can be effectively separated, so that the solid impurities in the sewage are separated to the first chamber through the dry-wet separation piece, and the sewage can flow to the second chamber, thereby facilitating the user to separately treat the solid-liquid dirt. By arranging the anti-backflow device at the drain opening, the one-way flow of the sewage in the first chamber to the second chamber can be ensured, and the overflow caused by backflow of the sewage can be avoided, thereby improving the cleaning effect and user experience. By arranging the fence around the drain opening, larger impurities in the sewage can be effectively filtered and blocked, and the risk of blockage caused by the impurities directly entering the drain opening can be reduced.

[0008] In a possible implementation, the fence comprises a plurality of blocking columns, and the plurality of blocking columns are spaced apart along the circumference of the drain opening, and the flow passage is defined between adjacent two blocking columns.

[0009] Thus, the blocking columns can break the water film formed by the sewage, destroy the surface tension of the water, accelerate the downward flow of the sewage, and make the sewage more easily enter the second chamber through the drain opening, thereby preventing the sewage from overflowing. At the same time, the sewage in the form of a water film can also be prevented from remaining on the upper surface of the dry-wet separation piece, and the dry-wet separation piece can be kept cleaner.

[0010] In a possible implementation, the spacing between adjacent two blocking columns is 1 mm-10 mm.

[0011] Thus, the water film can be sufficiently destroyed while ensuring that the sewage can smoothly flow through the flow passage without being significantly slowed down by the blocking columns.

[0012] In a possible implementation, the height of the blocking column in the vertical direction is 1 mm-10 mm.

[0013] Thus, the height of the blocking column is sufficient to sufficiently agitate the water film of the sewage within a reasonable water volume range, and the appearance of the dry-wet separation piece is also ensured to be neat and beautiful.

[0014] In a possible implementation, the minimum distance between the blocking column and the edge of the drain opening is not greater than 10 mm.

[0015] Thus, the distance between the blocking column and the drain opening can be shortened, so that the structure arrangement is compact and beautiful, and the sewage can be prevented from forming a water film again after passing through the blocking column.

[0016] In a possible implementation, the anti-backflow device is arranged in the second chamber.

[0017] Thus, the filtered sewage can be effectively prevented from flowing back to the first chamber from the second chamber, and the one-way flow of the sewage can be ensured.

[0018] In a possible implementation, the anti-backflow device is connected to at least one of the dry-wet separation member and the box body.

[0019] In this way, the position of the anti-backflow device can be fixed, thereby playing a reliable anti-backflow role.

[0020] In a possible implementation, the anti-backflow device defines a flow passage inside, and has a first state and a second state, wherein in the first state, the flow passage is closed, and in the second state, the flow passage is opened under the water pressure of the first chamber.

[0021] In this way, the anti-backflow device can quickly respond to the change of water pressure on the first chamber side, and ensure that the flow passage can be opened in time when needed, and closed quickly when not needed, thereby ensuring stable operation of the brush mechanism.

[0022] In a possible implementation, the anti-backflow device is a flexible deformation member.

[0023] In this way, the anti-backflow device can realize the anti-backflow function only by deforming itself, and has a simple and stable structure.

[0024] In a possible implementation, at least part of the structure of the anti-backflow device is a plastic member.

[0025] In this way, the good sealing performance of the plastic member can ensure that the connection between the anti-backflow device and the dry-wet separation member is sealed well, thereby preventing water leakage.

[0026] In a possible implementation, the anti-backflow device has an inlet connected to the drain outlet and an outlet away from the drain outlet, and the opening direction of the inlet and the opening direction of the outlet form an included angle.

[0027] In this way, the included angle can increase the difficulty of the sewage flowing back from the second chamber to the first chamber.

[0028] In a possible implementation, the drain outlet includes a plurality of drain holes.

[0029] In this way, the plurality of drain holes increases the total flow area, improves the passing capacity of the water flow, and accelerates the speed of the sewage flowing from the first chamber to the second chamber.

[0030] In a possible implementation, the spacing between two adjacent drain holes is 1mm-10mm; and / or, the total area S of the plurality of drain holes satisfies: S≥50mm 2 .

[0031] Therefore, by limiting the distance between the drain holes and the total area of the drain holes, the total flow area can be increased and the drainage efficiency can be improved while ensuring the structural strength of the dry-wet separation piece.

[0032] In a possible implementation, the dry-wet separation piece includes a filter part, and the drain holes are formed in the filter part; and a water guide part having a water guide slope that is inclined relative to the height direction, and the bottom end of the water guide slope is connected to the filter part, and the water guide part is configured to guide the sewage to the drain holes.

[0033] Therefore, the filter part can filter out solid impurities and large particles in the sewage, preventing the impurities from entering the drain holes and the backflow prevention device, and reducing the risk of blockage. The water guide part can effectively guide the sewage from the roller brush assembly to the filter part and then to the drain holes.

[0034] In a possible implementation, the height difference of the water guide slope of the water guide part along the height direction is 3 mm-50 mm.

[0035] Therefore, the sewage can obtain a certain kinetic energy when passing through the drain holes, which can accelerate the sewage passing through the drain holes and improve the drainage efficiency.

[0036] In a possible implementation, the water guide part surrounds the filter part.

[0037] Therefore, the sewage can be uniformly distributed around the filter part, reducing the risk of blockage and overflow caused by local water flow concentration.

[0038] In a possible implementation, the box body has a first side wall close to the roller brush assembly along the first direction and a second side wall away from the roller brush assembly, and the distance between the filter part and the first side wall is less than the distance between the filter part and the second side wall.

[0039] Therefore, the distance of the sewage flow to the filter part can be reduced, and the inclination angle of the water guide slope close to the first side wall can be greater than the inclination angle of the water guide slope close to the second side wall, thereby accelerating the speed of the sewage from the roller brush assembly to the filter part.

[0040] In a possible implementation, the filter part is a plurality of filter parts spaced apart along the second direction, the water guide part corresponds to the filter part one by one, and the edges of two water guide parts corresponding to adjacent two filter parts are connected to each other.

[0041] Therefore, compared with the case that the filter part is only one, the plurality of filter parts can make the filter parts closer to the edge of the roller brush in the second direction, which is conducive to the sewage flowing down from the edge to flow into the second chamber of the sewage tank along the water guide part as soon as possible, and overall shortens the time for the sewage to flow into the second chamber, thereby reducing the risk of the sewage overflowing before falling in the first chamber. The edges of the two water guide parts corresponding to the adjacent two filter parts are connected to each other, so that a continuous water guide path can be formed to reduce the resistance of the sewage in the water guide process. At the same time, it can ensure that the sewage quickly flows to the nearest filter part after entering the tank body, reduce the residence time of the sewage in the tank body, and reduce the risk of sewage overflow.

[0042] In a possible implementation, the anti-backflow device corresponds to the filter part one by one.

[0043] In this way, the one-way conduction feature of the anti-backflow device can further reduce the risk of sewage backflow.

[0044] In a possible implementation, the dry-wet separation piece is further provided with an exhaust passage, one end of the exhaust passage is connected with the first chamber, and the other end of the exhaust passage is connected with the second chamber.

[0045] In this way, the exhaust passage can ensure the air pressure balance between the first chamber and the second chamber, which is conducive to the rapid flow of the sewage in the first chamber into the second chamber, and also conducive to avoiding sewage backflow or air bubble accumulation caused by air pressure difference.

[0046] In a possible implementation, the exhaust passage is arranged on the side of the dry-wet separation piece away from the roller brush assembly in the first direction.

[0047] In this way, the air flow can be exchanged in a place away from the main sewage flow area, so as to prevent the sewage from blocking the exhaust hole.

[0048] In a possible implementation, the exhaust passage is arranged away from the two ends of the dry-wet separation piece in the second direction.

[0049] In this way, the exhaust passage can be arranged as far away from the two end walls of the sewage tank in the second direction as possible, so that in the extreme case that the sewage overflows from the exhaust passage, it is still difficult to splash out of the sewage tank.

[0050] In a possible implementation, the exhaust passage has an exhaust outlet located on one side of the first chamber, and the height difference between the exhaust outlet and the drain outlet in the height direction is 5mm-30mm.

[0051] In this way, the air pressure balance between the first chamber and the second chamber can be ensured to effectively regulate the air flow and ensure smooth flow of the air flow in the exhaust passage.

[0052] In a possible implementation, the dry-wet separation piece further comprises a connecting portion configured to connect with the box body.

[0053] In this way, the stability and sealing of the dry-wet separation piece in the box body can be ensured.

[0054] In a possible implementation, the connecting portion is formed with a flow guide inclined surface inclined relative to the height direction on a side of the rolling brush assembly.

[0055] In this way, the part of the connecting portion facing the direction of the sewage flow can better receive and guide the sewage falling from the rolling brush assembly.

[0056] In a possible implementation, the flow guide inclined surface protrudes from the dry-wet separation piece in the second direction.

[0057] In this way, the area of the flow guide inclined surface receiving the sewage can be increased, so that the flow rate of the sewage is slowed down and the sewage is not splashed on the ground.

[0058] In a possible implementation, the length of the flow guide inclined surface in the second direction is greater than the length of the rolling brush bristles in the second direction.

[0059] In this way, it can be ensured that the sewage falling from the rolling brush is completely received by the flow guide inclined surface and does not splash on the ground.

[0060] In a possible implementation, the part of the flow guide inclined surface protruding in the second direction is inclined towards the drain.

[0061] In this way, the sewage received by the part of the flow guide inclined surface protruding from the dry-wet separation piece in the second direction can be guided towards the center of the dry-wet separation piece, preventing the sewage on this part of the flow guide inclined surface from flowing into the sewage tank and flowing to the ground.

[0062] In a possible implementation, the outer peripheral wall of the connecting portion is provided with a sealing groove, the groove opening of the sealing groove faces the side wall of the second chamber, and the sewage tank further comprises a sealing piece fixed to the sealing groove to seal the gap between the dry-wet separation piece and the box body.

[0063] In this way, it can be ensured that the sealing piece closely fits on the side wall of the second chamber when installed to form an effective seal.

[0064] In a possible implementation, the inner wall of the sealing groove comprises a groove bottom wall opposite the groove opening, the groove bottom wall is provided with a mounting rib protruding towards the groove opening, and the sealing piece is provided with a mounting groove matched with the mounting rib, and the mounting rib is embedded in the mounting groove.

[0065] In this way, the installation of the sealing piece can be facilitated.

[0066] In a possible implementation, the connecting portion is provided with a fixing structure, the box body is provided with a fixing matching structure matched with the fixing structure, and the dry-wet separation piece and the box body are connected through the fixing structure and the fixing matching structure.

[0067] In this way, stable connection of the dry-wet separation piece and the box body can be achieved.

[0068] In a possible implementation, the fixing structure is arranged at a side edge of the dry-wet separation piece facing the roller brush assembly in the first direction, the fixing structure is formed as a fixing rib protruding toward the roller brush assembly in the first direction, and the fixing matching structure is formed as a fixing clamping groove matched with the fixing rib, and the fixing rib is clamped into the fixing clamping groove.

[0069] In this way, positioning and alignment of the dry-wet separation piece during installation can be facilitated, and the user can be guided to correctly install the dry-wet separation piece.

[0070] In a possible implementation, the dry-wet separation piece further includes a handle structure, and the handle structure is arranged at a side edge of the dry-wet separation piece away from the roller brush assembly in the first direction.

[0071] In this way, installation and disassembly of the dry-wet separation piece can be facilitated. The handle structure and the fixing structure are arranged at two sides of the dry-wet separation piece in the first direction, which is ergonomic. For example, when the user installs the dry-wet separation piece, the fixing rib is first clamped into the fixing clamping groove, and then the handle structure is held and pressed along the edge of the box body. In this way, the annular sealing piece can be tightly connected with the box body in the circumferential direction, and the dry-wet separation piece can be ensured to be installed in place.

[0072] In a possible implementation, the dry-wet separation piece is further provided with an exhaust passage, and the exhaust passage is arranged at the handle structure.

[0073] In this way, the space of the handle can be fully utilized, the space occupied by the additional pipeline or passage can be reduced, and the overall design can be more compact and simple.

[0074] On the other hand, the present application provides a cleaning device, including the floor brush mechanism in any of the above possible implementations.

[0075] Therefore, according to the cleaning device provided by the application, by arranging the above-mentioned brush mechanism, the solid impurities in the sewage can be effectively separated from the liquid, so that the solid impurities in the sewage are separated to the first chamber by the dry-wet separation piece, while the sewage can flow to the second chamber, thereby avoiding the sewage tank from being blocked, and facilitating the user to clean. By arranging the anti-backflow device at the drain outlet, the sewage in the first chamber can flow to the second chamber in one direction, thereby avoiding the overflow caused by the backflow of the sewage, and improving the cleaning effect and user experience.

[0076] In another aspect, the application also provides a cleaning system, comprising: a cleaning base station; and the above-mentioned cleaning device, wherein the cleaning base station is configured to clean at least the sewage tank of the cleaning device.

[0077] Therefore, according to the cleaning system provided by the application, by arranging the above-mentioned cleaning device, the cleaning efficiency and reliability of the whole system can be improved. By arranging the dry-wet separation piece and the anti-backflow device, the effective filtration of the sewage and the prevention of the backflow of the sewage can be ensured, thereby reducing the risk of blockage and leakage, improving the stability and service life of the system. In addition, the burden of the cleaning base station can be reduced, the service life of the sewage tank can be prolonged, and the cleaning base station can efficiently clean and process the sewage tank of the cleaning device.

[0078] The brush mechanism provided by the application and the cleaning device and cleaning system having the same can separate the inner cavity of the tank body of the sewage tank into the first chamber located on the upper side of the dry-wet separation piece and the second chamber located on the lower side of the dry-wet separation piece, so that the sewage can flow to the second chamber under the action of gravity. By arranging the dry-wet separation piece, the solid impurities in the sewage can be effectively separated from the liquid, so that the solid impurities in the sewage are separated to the first chamber by the dry-wet separation piece, while the sewage can flow to the second chamber, thereby avoiding the water tank assembly from being blocked. In addition, the dry-wet separation piece is provided with a drain outlet communicating the first chamber and the second chamber, and by arranging the anti-backflow device at the drain outlet, the sewage in the first chamber can flow to the second chamber in one direction, thereby avoiding the overflow caused by the backflow of the sewage, and improving the cleaning effect and user experience. BRIEF DESCRIPTION OF DRAWINGS

[0079] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0080] Figure 1 The structural schematic diagram of the cleaning device provided by the embodiments of the application is shown in the following figure;

[0081] Figure 2 Structure diagram of a brush mechanism provided for an embodiment of the present application Figure One ;

[0082] Figure 3 Structure diagram of a brush mechanism provided for an embodiment of the present application Figure Two ;

[0083] Figure 4 Structure diagram of a brush mechanism provided for an embodiment of the present application Figure Three ;

[0084] Figure 5 Structure diagram of a brush mechanism provided for an embodiment of the present application Figure Four ;

[0085] Figure 6 Structure diagram of a brush mechanism provided for an embodiment of the present application Figure 5 Enlarged view of the structure at A in FIG. 1;

[0086] Figure 7 Structure diagram of a brush mechanism provided for an embodiment of the present application Figure Five ;

[0087] Figure 8 Structure diagram of a dry-wet separation piece in a brush mechanism provided for an embodiment of the present application.

[0088] BRIEF DESCRIPTION OF THE DRAWINGS

[0089] 10 - water tank assembly; 20 - rolling brush assembly; 30 - upper cover assembly; 11 - sewage tank; 12 - clean water tank;

[0090] 110 - tank main body; 111 - first chamber; 112 - second chamber; 113 - first side wall; 114 - second side wall; 115 - sealing piece; 116 - fixed fitting structure;

[0091] 120 - dry-wet separation piece;

[0092] 121 - lower water inlet; 1211 - lower water hole; 122 - filter part; 123 - water guide part; 124 - exhaust passage; 125 - blocking column; 126 - connecting part; 1261 - sealing groove; 1262 - fixing structure; 127 - handle structure; 130 - anti-backflow device. DETAILED DESCRIPTION

[0093] In order to make the above objectives, characteristics and advantages of the embodiments of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0094] The existing wet cleaning brush mechanism usually directly sucks the sewage into the sewage tank on the hand rod for storage. However, this scheme makes the overall weight of the cleaning mechanism large and difficult to manipulate. If the sewage tank is placed inside the brush mechanism, in order to ensure the volume of the sewage tank, the brush structure must be simplified, so that it is difficult to use the way of using the suction motor to generate vacuum to suck the sewage. If the sewage is thrown into the sewage tank under the action of gravity, the problem of splashing of the sewage due to movement or rotation of the brush will be faced.

[0095] Therefore, the present application provides a brush mechanism, a cleaning device and a cleaning system having the same. By arranging a dry-wet separation piece, the inner cavity of the tank body of the sewage tank can be divided into a first chamber located on the upper side of the dry-wet separation piece and a second chamber located on the lower side of the dry-wet separation piece, so that the solid impurities in the sewage can be effectively separated from the liquid, the solid impurities in the sewage are separated to the first chamber through the dry-wet separation piece, and the sewage can flow to the second chamber, thereby avoiding the blockage of the sewage tank. In addition, the anti-backflow device is designed by the overflow channel and the flexible deformation piece on the inner side, which can be opened under the action of water pressure on the first chamber side and closed without water pressure, thereby ensuring the one-way flow of the sewage. The dry-wet separation piece is provided with a filter part having a plurality of drain holes and a water guide part having an inclined water guide slope, which can effectively guide the sewage to the drain, further improving the falling speed of the sewage.

[0096] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail in the specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings:

[0097] It should be noted that the brush mechanism provided by the embodiments of the present application can be applied to various cleaning devices. For example, a dust collector, a floor washing machine, a floor sweeping robot, an outdoor cleaning device, etc.

[0098] Referring to Figure 1 The brush mechanism of the embodiments of the present application includes a water tank assembly 10 and a roller brush assembly 20.

[0099] The water tank assembly 10 includes a clean water tank 12 and a dirty water tank 11. The clean water tank 12 can provide clean water for the rolling brush assembly, and the dirty water tank 11 can temporarily store the ground dirty water recovered from the rolling brush assembly 20.

[0100] The water tank assembly 10 can further be provided with a cover assembly 30. The cover assembly 30 can cover the top of the water tank assembly 10, and can seal and protect the water tank assembly 10 from leakage of dirty water and entry of external contaminants.

[0101] Referring to Figure 3 As shown, the clean water tank 12 and the dirty water tank 11 can be arranged adjacently. Alternatively, the dirty water tank 11 can be arranged close to the rolling brush assembly 20, and the clean water tank 12 can be arranged on the side of the dirty water tank 11 away from the rolling brush assembly 20.

[0102] Further, the rolling brush assembly 20 can be arranged on one side of the dirty water tank 11 along a first direction, and can be configured to drive the dirty water to flow into the first chamber 111 through rotation of the rolling brush assembly.

[0103] It can be understood that the first direction can be perpendicular to the axial direction of the rolling brush assembly 20. Alternatively, the first direction can also be perpendicular to the connecting line of the tank bodies of the clean water tank 12 and the dirty water tank 11. The dirty water tank 11 can include a tank body 110, a dry-wet separation piece 120, and an anti-backflow device 130.

[0104] The dry-wet separation piece 120 can separate the inner cavity of the tank body 110 into a first chamber 111 and a second chamber 112. The first chamber 111 can be located on the upper side of the dry-wet separation piece 120, and the second chamber 112 can be located on the lower side of the dry-wet separation piece 120. The first chamber 111 can temporarily store the dirty water scraped off from the rolling brush assembly 20. The temporarily stored dirty water can be subjected to dry-wet separation under the action of the dry-wet separation piece 120, and then the dry-wet separated dirty water can enter the second chamber 112.

[0105] It can be understood that in the first chamber 111, part of the solid impurities and liquid in the dirty water can start to separate. Larger solid impurities can be blocked in the first chamber 111. The first chamber 111 can also serve as a buffer to reduce the impact force of the dirty water flowing into the second chamber 112, prevent the dirty water from directly impacting the bottom of the second chamber 112, and reduce the risk of water splashing and backflow of dirty water.

[0106] In one possible design, a filter screen or a filtering device can be further arranged in the first chamber 111 to further filter the solid impurities in the dirty water, so as to ensure that the dirty water entering the second chamber 112 is more pure.

[0107] The dry-wet separation piece 120 is further provided with a drain 121 communicating the first chamber 111 and the second chamber 112. The drain 121 serves as a passage for the sewage flowing from the first chamber 111 to the second chamber 112. To ensure one-way flow of the sewage, the drain 121 is provided with an anti-backflow device 130 to prevent the sewage from flowing back from the second chamber 112 to the first chamber 111. The anti-backflow device 130 is configured to allow the sewage in the first chamber 111 to flow to the second chamber 112 in one direction.

[0108] As shown in Figure 8 The dry-wet separation piece 120 further includes a fence. The fence surrounds the drain 121 and can be fixed above the filter 122. The fence can be connected to the filter 122 by welding, bonding or buckling, etc. to ensure the stability of the structure. The fence is further provided with overflow openings communicating the two sides of the fence. The overflow openings can be uniformly distributed on the outer periphery of the fence to ensure uniform distribution of the sewage before entering the drain 121. By providing the fence, the solid waste can be prevented from flowing to the drain 121 and blocking the drain 121, thereby better achieving solid-liquid separation and ensuring smooth flow of the sewage from the first chamber 111 to the second chamber 112.

[0109] In this way, by providing the dry-wet separation piece 120, the inner cavity of the tank body 110 of the sewage tank 11 can be divided into the first chamber 111 on the upper side of the dry-wet separation piece 120 and the second chamber 112 on the lower side of the dry-wet separation piece 120, so that the sewage can flow to the second chamber 112 under the action of gravity. By providing the dry-wet separation piece 120, the solid impurities in the sewage can be effectively separated from the liquid, so that the solid impurities in the sewage are separated to the first chamber 111 by the dry-wet separation piece 120, while the sewage can flow to the second chamber 112, thereby avoiding blockage of the tank assembly 10 and facilitating separate treatment of the solid-liquid waste by the user. In addition, the dry-wet separation piece 120 is provided with the drain 121 communicating the first chamber 111 and the second chamber 112. By providing the anti-backflow device 130 at the drain 121, the one-way flow of the sewage in the first chamber 111 to the second chamber 112 can be ensured, and the overflow caused by backflow of the sewage can be avoided, thereby improving the cleaning effect and user experience.

[0110] In one possible implementation, as shown in Figure 8 The fence includes a plurality of blocking columns 125. The blocking columns 125 can be cylindrical, square, oval or other suitable geometric shapes to adapt to different design requirements. The blocking columns 125 can be made of corrosion-resistant and wear-resistant materials such as stainless steel, ABS plastic, PVC, etc. to adapt to the chemical composition and solid impurities in the sewage.

[0111] Further, the plurality of blocking columns 125 are arranged at intervals along the circumference of the downcomer 121, and the flow passages are defined between adjacent two blocking columns 125.

[0112] In a possible design, the number of flow passages on the two water guide slopes opposite in the first direction of the water guide part 123 of the dry-wet separation piece 120 is greater than the number of flow passages on the two water guide slopes opposite in the second direction of the water guide part 123.

[0113] It can be understood that, by arranging the plurality of blocking columns 125 at intervals along the circumference of the downcomer 121, larger impurities in the sewage, such as hair, fibers, paper scraps and the like, can be effectively filtered and blocked, and the risk of blockage caused by the impurities directly entering the downcomer 121 can be reduced. Secondly, the flow passages between the blocking columns 125 can ensure uniform distribution of the sewage, reduce local flow concentration, and improve the stability and uniformity of the flow, thereby optimizing the flow path. In addition, when the sewage passes through the downcomer 121, due to the action of tension, the sewage will form a continuous water film around the downcomer 121, and the existence of the water film is not conducive to the smooth entry of the sewage into the second chamber 112. By arranging the plurality of blocking columns 125, the water film can be broken when the sewage passes through the blocking columns 125, so that the sewage can more easily enter the second chamber 112 through the downcomer 121.

[0114] In a possible implementation, the spacing between adjacent two blocking columns 125 is 1 mm-10 mm. For example, the spacing can be 1 mm, 2 mm, 4 mm, 6 mm, 8 mm or 10 mm. Of course, the spacing can also be other values, which are not limited in the present application.

[0115] It can be understood that, by reasonably designing the spacing between adjacent two blocking columns 125 in the present application, the water film can be broken by the blocking columns 125 while ensuring that the sewage can flow smoothly through the flow passages without significantly slowing down the flow rate due to the blocking of the blocking columns 125.

[0116] In a possible implementation, the minimum distance between the blocking column 125 and the edge of the downcomer 121 is not greater than 10 mm.

[0117] It can be understood that, by reasonably designing the minimum distance between the blocking column 125 and the edge of the downcomer 121 in the present application, the distance between the blocking column 125 and the downcomer 121 can be shortened, so that the structure arrangement is compact and beautiful, and the water film can be prevented from being formed again after the sewage passes through the blocking column 125.

[0118] In one possible implementation, the backflow prevention device 130 is located in the second chamber 112. For example, the backflow prevention device 130 can be a check valve installed at the drain outlet 121 of the second chamber 112. The check valve only allows sewage to flow from the first chamber 111 to the second chamber 112 and prevents sewage backflow. The valve body of the check valve can be a flap-shaped structure made of rubber or similar material. When sewage flows in, the flap-shaped structure opens; when the sewage stops flowing or attempts to flow back, the flap-shaped structure closes, thereby blocking sewage backflow. The check valve can be fixed at the drain outlet 121 by means of threads, snaps, or welding.

[0119] Alternatively, the backflow prevention device 130 can also be a float valve. A float can be installed in the second chamber 112, which can rise as the water level in the second chamber 112 rises. Furthermore, the float can be connected to a baffle via a lever mechanism, and the baffle is installed at the drain outlet 121. When the water level in the second chamber 112 rises, the float drives the lever mechanism, causing the baffle to block the drain outlet 121 and prevent sewage backflow.

[0120] Understandably, by installing an anti-backflow device 130 in the second chamber 112, it can fit more tightly with the drain outlet 121, effectively preventing sewage backflow. Even when the floor brush mechanism is tilted or moved, it can maintain good anti-backflow performance.

[0121] In one possible implementation, see Figures 2-6 As shown, the anti-backflow device 130 is connected to at least one of the wet / dry separation component 120 and the main body 110. For example, the anti-backflow device 130 is connected to the wet / dry separation component 120, or the anti-backflow device 130 is connected to the main body 110, or the anti-backflow device 130 is connected to both the wet / dry separation component 120 and the main body 110. The connection method can be bolted, snap-fit, glued, or other connection methods. In this way, the position of the anti-backflow device 130 can be fixed, thereby playing a reliable role in preventing backflow. Furthermore, the installation method of the anti-backflow device 130 is diverse and can be flexibly selected according to needs.

[0122] Optionally, the backflow prevention device 130 can be a duckbill valve. One end (i.e. the inlet end) of the backflow prevention device 130 is connected to the dry-wet separation piece 120. The other end (i.e. the outlet end) of the backflow prevention device 130 is duckbill-shaped and made of elastic material (e.g. rubber or silicone). The backflow prevention device 130 defines a flow passage. When the water pressure in the first chamber 111 is large enough, the duckbill-shaped outlet of the backflow prevention device 130 will open to allow sewage to flow through the backflow prevention device 130 into the second chamber 112. When the water pressure decreases or disappears, the duckbill-shaped outlet of the backflow prevention device 130 will automatically close to prevent backflow of sewage. The inlet portion of the backflow prevention device 130 can be fixed at the drain opening 121 of the dry-wet separation piece 120 by screwing, buckling or adhesion, etc. The backflow prevention device 130 can also be fixed on the inner wall of the tank body 110 to ensure its stable position.

[0123] In one possible implementation, the inside of the backflow prevention device 130 defines a flow passage, and the backflow prevention device 130 has a first state and a second state. In the first state, the flow passage is closed, and in the second state, the flow passage is opened under the action of the water pressure on the first chamber 111 side.

[0124] In one possible design, the outlet portion of the flow passage of the backflow prevention device 130 is tapered and made of elastic material (e.g. rubber or silicone). The tapered outlet has a gradually widening channel inside. When the water pressure on the first chamber 111 side increases, the tapered outlet will be pushed open by the water flow, thereby opening the flow passage of the backflow prevention device 130.

[0125] It can be understood that in the first state, the flow passage is closed, which can effectively prevent the sewage in the second chamber 112 from flowing back to the first chamber 111, can avoid the circulation of sewage inside the cleaning device, and reduce the risk of secondary pollution. In the first state, the flow passage is closed, which can prevent sewage from overflowing from the water tank assembly 10 during the tilting or movement of the cleaning device, thereby maintaining the cleanliness of the ground and the cleaning device. In the second state, the flow passage is opened under the action of the water pressure on the first chamber 111 side, which can ensure smooth flow of sewage from the first chamber 111 to the second chamber 112, improving the water circulation efficiency of the entire brush mechanism. The backflow prevention device 130 can quickly respond to changes in water pressure on the first chamber 111 side, ensuring that the flow passage can be opened in time when needed, and quickly closed when not needed, to ensure stable operation of the brush mechanism.

[0126] In one possible implementation, the backflow prevention device 130 is a flexible deformation member. That is, the backflow prevention device 130 can achieve the backflow prevention function by deforming itself. For example, the flexible deformation member can naturally close under no or low water pressure to prevent the sewage in the second chamber 112 from flowing back to the first chamber 111, and deform to open the overflow passage when the water pressure on the side of the first chamber 111 is greater.

[0127] In one possible implementation, at least part of the structure of the backflow prevention device 130 is made of plastic. For example, only a part of the backflow prevention device 130 (e.g., the part away from the end of the dry-wet separation member 120) can be made of plastic, or the backflow prevention device 130 can be made of plastic as a whole.

[0128] Optionally, the inlet part of the backflow prevention device 130 can be made of plastic for connecting the drain port 121 of the dry-wet separation member 120.

[0129] It can be understood that the plastic material has good sealing performance, which can ensure that the connection between the inlet part of the backflow prevention device 130 and the dry-wet separation member 120 is sealed well to prevent water leakage. In addition, the plastic material has good corrosion resistance and is suitable for the sewage treatment environment of various cleaning equipment.

[0130] In one possible implementation, the backflow prevention device 130 has an inlet and an outlet, wherein the inlet is used to connect the drain port 121, the outlet is away from the drain port 121 and discharges the sewage into the second chamber 112, and the opening direction of the inlet and the opening direction of the outlet form an included angle.

[0131] Specifically, the inlet of the backflow prevention device 130 connects the drain port 121 of the dry-wet separation member 120, and the opening direction of the inlet of the backflow prevention device 130 can be parallel to the axial direction of the drain port 121. The outlet of the backflow prevention device 130 is away from the drain port 121, and the opening direction of the outlet of the backflow prevention device 130 can form an included angle with the opening direction of the inlet, or the opening direction of the outlet of the backflow prevention device 130 can form an included angle with the box body 110.

[0132] Further, the included angle between the opening direction of the inlet and the opening direction of the outlet of the backflow prevention device 130 can be between 30° and 60°. Preferably, the included angle between the opening direction of the inlet and the opening direction of the outlet of the backflow prevention device 130 can be 45°.

[0133] It can be understood that the angle between the opening direction of the inlet and the opening direction of the outlet can increase the difficulty of the sewage flowing back from the second chamber 112 to the first chamber 111. The angle can also reduce the turbulence of the water flow when entering the second chamber 112, making the water flow more stable. In addition, the angle can also reduce the bubbles generated when the water flow enters the second chamber 112, avoiding the influence of the bubbles on the water flow.

[0134] In one possible implementation, referring to Figures 2-6 As shown, the drain 121 includes a plurality of drain holes 1211, which are arranged at intervals. The shape of the drain hole 1211 can be circular, square, oval or any other shape, which is not limited in the embodiment.

[0135] The drain 121 is composed of a plurality of drain holes 1211, each of which can serve as a separate water flow passage. The drain holes 1211 can be arranged in multiple columns and multiple rows to form a grid-like structure.

[0136] Further, a plurality of drain holes 1211 can be arranged in each column, and 3-10 drain holes 1211 can be arranged in each column. The specific number is determined according to actual needs, which is not limited in the application. 3-15 or more columns can be arranged, and the spacing between the columns is moderate to ensure uniform distribution of water flow. The diameter and spacing of the drain holes 1211 can be adjusted according to the properties and flow of the sewage to ensure smooth water flow, which is not limited in the application.

[0137] It can be understood that the plurality of drain holes 1211 increases the total flow area and improves the water flow capacity, thereby accelerating the speed of the sewage flowing from the first chamber 111 to the second chamber 112. The plurality of drain holes 1211 can disperse solid impurities and reduce the possibility of single-hole blockage. The design of the plurality of drain holes 1211 can reduce the turbulence of the water flow when entering the anti-backflow device 130, making the water flow more stable.

[0138] In one possible implementation, the spacing between adjacent two drain holes 1211 is 1mm-10mm, or the total area S of the plurality of drain holes 1211 satisfies: S≥50mm 2 .

[0139] In one possible design, the spacing between adjacent two drain holes 1211 is 1mm-10mm. For example, the spacing between adjacent two drain holes 1211 can be 1mm, 3mm, 5mm, 7mm, 9mm or 10mm. Of course, the spacing between adjacent two drain holes 1211 can also be other sizes, which is not limited in the application.

[0140] It is understandable that by setting the above spacing reasonably, the increased processing difficulty and reduced overall structural strength of the dry and wet separation component 120 caused by too small a spacing can be avoided, as can the problem of reduced number of drain holes 1211 and reduced total drainage area caused by too large a spacing can also be avoided.

[0141] In another possible design, the total area S of the multiple drain holes 1211 satisfies: S≥50mm 2 For example, the total area S of multiple drain holes 1211 can be 50 mm². 2 100mm 2 250mm 2 350mm 2 Of course, the total area S of the multiple drain holes 1211 can be other values, and this application does not impose any restrictions.

[0142] Understandably, by limiting the total area S of multiple drain holes 1211, the total flow area can be significantly increased, the flow velocity of sewage can be improved, and the drainage efficiency can be accelerated.

[0143] In another possible design, the distance between two adjacent drain holes 1211 is 1mm-10mm, and the total area S of the multiple drain holes 1211 satisfies: S≥50mm² 2 .

[0144] Preferably, the number of drain holes 1211 can be around 130. The total area S of the multiple drain holes 1211 is 350 mm². 2 Left and right. The spacing between two adjacent drain holes 1211 can be 1mm. Multiple drain holes 1211 can be arranged in a 10-row, 15-column pattern, and the drain holes 1211 in adjacent rows can be staggered. For example, the drain holes 1211 in adjacent rows can be arranged in a honeycomb pattern.

[0145] In one possible implementation, see Figures 2-8 As shown, the wet-dry separation unit 120 includes a filter section 122 and a water guiding section 123. The main function of the filter section 122 is to filter out solid impurities and large particles from the wastewater, preventing these impurities from entering the drain outlet 121 and the anti-backflow device 130, thus reducing the risk of clogging. The water guiding section 123 effectively guides wastewater from the roller brush assembly 20 to the filter section 122, and then smoothly into the drain outlet 121 via the filter section 122.

[0146] In the specific implementation, the drain outlets 121 are all formed on the filter section 122, so that the sewage in the first chamber 111 first passes through the filter section 122 and then enters the second chamber 112 through the drain outlets 121. The water guiding section 123 can be set on the filter section 122 and has a water guiding slope inclined relative to the height direction. The bottom end of the water guiding slope is connected to the filter section 122, and the water guiding section 123 is used to guide the sewage to the drain outlets 121.

[0147] In one possible design, the inclination angle of the guide ramp can be determined according to actual needs, and this application does not impose any limitations. Furthermore, the surface of the guide ramp can be slightly textured or grooved to prevent sewage from splashing when flowing at high speeds.

[0148] In one possible implementation, see Figures 7-8 As shown, the water guiding part 123 surrounds the filter part 122.

[0149] Understandably, the water guiding section 123 surrounding the filter section 122 can ensure that the sewage is evenly distributed around the filter section 122, reducing the risk of blockage and overflow caused by local water flow concentration.

[0150] In one possible implementation, see Figure 7 As shown, the main body 110 of the filter box has a first sidewall 113 and a second sidewall 114. The first sidewall 113 and the second sidewall 114 are disposed opposite each other along a first direction. The first sidewall 113 is close to the roller brush assembly 20. The second sidewall 114 is away from the roller brush assembly 20 along the first direction. The distance between the filter section 122 and the first sidewall 113 is less than the distance between the filter section 122 and the second sidewall 114.

[0151] In other words, the distance between the filter section 122 and the first sidewall 113 is less than the distance between the filter section 122 and the second sidewall 114. This reduces the distance the sewage needs to travel to reach the filter section 122 and also results in the inclination angle of the guide slope near the first sidewall 113 being greater than that of the guide slope near the second sidewall 114. After the sewage flows out of the roller brush assembly 20, it first contacts the guide slope near the first sidewall 113. Because the guide slope near the first sidewall 113 has a larger inclination angle, it can quickly guide the sewage from the roller brush assembly 20 to the filter section 122. Meanwhile, the guide slope near the second sidewall 114 ensures that the sewage enters the drain outlet 121 smoothly, reducing turbulence and splashing.

[0152] In a possible implementation, the filter portions 122 are multiple. The multiple filter portions 122 can be spaced apart along the second direction. The water guide portions 123 can correspond to the filter portions 122 one by one, and edges of two water guide portions 123 corresponding to two adjacent filter portions 122 can be connected to each other. Compared with the case where there is only one filter portion 122, the multiple filter portions 122 can make the filter portions 122 closer to the edges of the roller brush in the second direction, which is conducive to the sewage flowing down from the edges to flow into the second chamber 112 of the sewage tank 11 along the water guide portions 123 as soon as possible, and overall shorten the time for the sewage to flow into the second chamber 112, which is conducive to reducing the risk of the sewage overflowing before falling in the first chamber 111.

[0153] It can be understood that the second direction can be the axial direction of the roller brush assembly 20, or the second direction can be perpendicular to the first direction.

[0154] In a possible design, two groups of filter portions 122 and water guide portions 123 can be arranged on the dry-wet separation piece 120. The two filter portions 122 can be spaced apart along the second direction, and each filter portion 122 is surrounded by the water guide portions 123. The bottom end of the water guide slope of the water guide portion 123 corresponding to each filter portion 122 is connected to the filter portion 122 to form a water guide area. The two water guide areas formed by the two groups of filter portions 122 and water guide portions 123 can be spaced apart along the second direction. The edges of the two water guide portions 123 corresponding to the two adjacent filter portions 122 are connected to each other to form a continuous water guide path.

[0155] It can be understood that the edges of the two water guide portions 123 corresponding to the two adjacent filter portions 122 are connected to each other to form a continuous water guide path, which can reduce the resistance of the sewage during the water guide process, so that the sewage is more easily flowed from the first chamber 111 to the second chamber 112. In addition, the two filter portions 122 are spaced apart along the second direction, which can ensure that the sewage quickly flows to the nearest filter portion 122 after entering the tank body 110, reduce the residence time of the sewage in the tank body 110, and reduce the risk of sewage overflow.

[0156] In a possible implementation, the number of the backflow prevention devices 130 is the same as the number of the filter portions 122. That is, the backflow prevention devices 130 correspond to the filter portions 122 one by one.

[0157] In a possible design, two groups of filter portions 122 and water guide portions 123 can be arranged on the dry-wet separation piece 120. The two filter portions 122 can be spaced apart along the second direction. The backflow prevention devices 130 can be arranged at the drain port 121 and configured to correspond to two filter portions 122.

[0158] Understandably, each filter section 122 has an independent backflow prevention device 130. Even if one backflow prevention device 130 fails, the other can still work normally, which can reduce the risk of sewage backflow.

[0159] In one possible implementation, the dry-wet separator 120 is further provided with an exhaust passage 124. One end of the exhaust passage 124 is connected to the first chamber 111, and the other end is connected to the second chamber 112.

[0160] Understandably, the exhaust channel 124 can ensure the air pressure balance between the first chamber 111 and the second chamber 112, avoid sewage backflow or bubble accumulation caused by air pressure difference, and make it easier for sewage to flow from the first chamber 111 into the second chamber 112.

[0161] In one possible implementation, see [link to relevant documentation] Figures 2-6 As shown, the exhaust passage 124 can be located on one side of the dry-wet separator 120. Furthermore, the exhaust passage 124 can be located on the side away from the roller brush assembly 20 along the first direction.

[0162] In one possible design, the exhaust channel 124 can be located at the edge connection of the two water guides 123 corresponding to the two adjacent filter sections 122, and at one end away from the roller brush assembly 20 in the first direction.

[0163] Understandably, the exhaust channel 124 is located at the edge connection of the water guide section 123 and at one end away from the roller brush assembly 20 in the first direction, which can ensure that the airflow is exchanged away from the main sewage flow area and prevent sewage from clogging the exhaust hole.

[0164] In one possible design, the exhaust passage 124 is located at both ends in a second direction away from the wet-dry separator 120.

[0165] Understandably, this design allows the exhaust channel 124 to be kept as far away as possible from the two end sidewalls of the sewage tank 11 in the second direction, so that even in extreme cases, when sewage overflows from the exhaust channel 124, it is still difficult for it to splash out of the sewage tank 11.

[0166] In one possible implementation, see [link to relevant documentation] Figure 4 As shown, the exhaust channel 124 has an exhaust outlet. The exhaust outlet of the exhaust channel 124 is located on the side of the first chamber 111 away from the second chamber 112. There is a height difference H1 between the exhaust outlet and the drain outlet 121 in the vertical direction. The height difference H1 between the exhaust outlet and the drain outlet 121 is 5mm-30mm. For example, the height difference H1 between the exhaust outlet and the drain outlet 121 can be 5mm, 15mm, 20mm, 25mm, or 30mm. Of course, the height difference H1 between the exhaust outlet and the drain outlet 121 can also be other values, and this application does not impose any restrictions.

[0167] It can be understood that the height difference H1 between the exhaust outlet and the drain outlet 121 can ensure the air pressure balance between the first chamber 111 and the second chamber 112, so as to effectively regulate the air flow and ensure the smooth flow of the air flow in the exhaust passage 124. The height difference H1 between the exhaust outlet and the drain outlet 121 can avoid the difference being too high to compress the water storage space of the second chamber 112, and can also avoid the difference being too low to cause the sewage to overflow from the exhaust passage 124.

[0168] In a possible implementation manner, referring to Figure 6 , the height difference H2 of the water guide inclined surfaces of the two water guide portions 123 in the height direction is 3mm-50mm. For example, the height difference H2 of the water guide inclined surfaces of the two water guide portions 123 can be 3mm, 10mm, 20mm, 30mm, 40mm or 50mm. Of course, the height difference H2 can also be other values, which are not limited in the present application.

[0169] It can be understood that the height difference H2 of the water guide inclined surfaces of the two water guide portions 123 in the height direction is 3mm-50mm, which can make the sewage obtain a certain kinetic energy when passing through the drain outlet 121. When the sewage flows from the higher water guide portion 123 to the lower drain outlet 121, the potential energy is converted into kinetic energy to increase the speed of the water flow, so as to accelerate the sewage to pass through the drain outlet 121, improve the drainage efficiency, and reduce the residence time of the sewage in the first chamber 111. The height difference H2 of the water guide inclined surfaces can avoid the slow water flow speed caused by the too small height difference, which cannot quickly pass through the drain outlet 121, and can also avoid the water flow impact and splashing caused by the too large height difference H2 of the water guide inclined surfaces, which generates more air bubbles.

[0170] In a possible implementation manner, referring to Figure 2 , Figure 3 , Figure 8 , the dry-wet separation piece 120 further includes a connecting portion 126. The dry-wet separation piece 120 can be connected to the box body 110 through the connecting portion 126.

[0171] In a possible design, the connecting portion 126 can be an annular structure arranged around the edge of the water guide portion 123. The connecting portion 126 can be arranged at the top of the dry-wet separation piece 120 and connected to the top edge of the box body 110. The top connection can ensure the stability and sealing performance of the dry-wet separation piece 120 in the box body 110, and reduce the risk of sewage leakage. Alternatively, the connecting portion 126 can be arranged on the side of the dry-wet separation piece 120 and connected to the side wall of the box body 110. The side connection can provide an additional support point to enhance the structural stability of the dry-wet separation piece 120 and reduce the shaking caused by the water flow impact.

[0172] In a possible design, the connecting portion is formed with a flow guide inclined surface on a side thereof facing the rolling brush assembly, the flow guide inclined surface being inclined relative to a height direction.

[0173] It can be understood that the flow guide inclined surface on the side of the connecting portion facing the rolling brush assembly can better receive and guide the sewage falling from the rolling brush assembly.

[0174] In a possible design, the flow guide inclined surface protrudes in the second direction beyond the dry-wet separation piece.

[0175] It can be understood that this can increase the area of the flow guide inclined surface for receiving the sewage, so that the flow rate of the sewage is slowed down and the sewage is not splashed on the ground.

[0176] In a possible design, the length of the flow guide inclined surface in the second direction is greater than the length of the rolling brush in the second direction.

[0177] It can be understood that this can ensure that the sewage falling from the rolling brush is completely received by the flow guide inclined surface and is not splashed on the ground.

[0178] In a possible design, the part of the flow guide inclined surface protruding in the second direction is directed towards the drain.

[0179] This can guide the sewage received by the part of the flow guide inclined surface protruding in the second direction beyond the dry-wet separation piece towards the center of the dry-wet separation piece, so that the sewage on the part of the flow guide inclined surface is prevented from flowing to the ground instead of flowing into the sewage tank.

[0180] In a possible implementation, referring to FIG. 12, Figure 4 The outer peripheral wall of the connecting portion 126 is provided with a sealing groove 1261. The sealing groove 1261 is provided with a groove opening, and the groove opening of the sealing groove 1261 faces the side wall of the second chamber 112.

[0181] Further, the sewage tank 11 further comprises a sealing member 115. The sealing member 115 can be shaped to fit the sealing groove 1261, so that the sealing member 115 can be fixed in the sealing groove 1261. The sealing member 115 can seal the gap between the dry-wet separation piece 120 and the tank body 110.

[0182] In a possible design, the sealing member 115 can be made of natural rubber, chloroprene rubber, silicone rubber, thermoplastic vulcanized rubber, or the like, to ensure good elasticity and aging resistance of the sealing member 115.

[0183] It can be understood that the groove opening of the sealing groove 1261 faces the side wall of the second chamber 112, which can ensure that the sealing member 115 can be closely attached to the side wall of the second chamber 112 when installed, to form an effective seal and prevent the sewage in the second chamber 112 from penetrating around the dry-wet separation piece 120 to the first chamber 111.

[0184] In a possible implementation, referring to Figure 4 As shown, the inner wall of the sealing groove 1261 can include a groove bottom wall opposite the notch. In order to facilitate the installation of the sealing member 115 and achieve the fixation of the sealing member 115 in the sealing groove 1261, the groove bottom wall of the sealing groove 1261 is further provided with a mounting rib. The mounting rib protrudes towards the notch. The sealing member 115 is provided with a mounting groove matched with the mounting rib, so that the mounting rib is embedded in the mounting groove.

[0185] In a possible implementation, the connecting portion 126 is provided with a fixing structure 1262. The box body 110 is provided with a fixing matching structure 116 matched with the fixing structure 1262. The dry-wet separation member 120 and the box body 110 are connected through the fixing structure 1262 and the fixing matching structure 116.

[0186] Optionally, the fixing structure 1262 can be a buckle structure, connected with the corresponding part of the box body 110 through buckling; or the fixing structure 1262 can also be a threaded structure, connected with the corresponding part of the box body 110 through threading.

[0187] In a possible implementation, the fixing structure 1262 is arranged on one side of the dry-wet separation member 120. Specifically, the fixing structure 1262 can be arranged on the side of the dry-wet separation member 120 close to the roller brush assembly 20.

[0188] In a possible design, the fixing structure 1262 can be two. The two fixing structures 1262 can be arranged at the two ends of the outer edge of the side of the dry-wet separation member 120 close to the roller brush assembly 20, and the two fixing structures 1262 are oppositely distributed along the second direction.

[0189] Further, the fixing structure 1262 can be formed as a fixing rib. The fixing rib can protrude towards the roller brush assembly 20 along the first direction. In order to achieve the connection of the dry-wet separation member 120 and the box body 110, the fixing matching structure 116 on the box body 110 can be designed as a fixing buckle groove matched with the fixing rib, so that the fixing rib of the dry-wet separation member 120 can be buckled into the fixing buckle groove on the box body 110.

[0190] During the installation process, the upper part of the fixing rib of the dry-wet separation member 120 can be in contact with the inside of the fixing buckle groove of the box body 110, and the contact point of the fixing rib and the inside of the fixing buckle groove can serve as the rotation center of the dry-wet separation member 120 during the installation process. By pressing the side of the dry-wet separation member 120 away from the roller brush assembly 20 downward, the dry-wet separation member 120 can be rotated around the rotation center until the dry-wet separation member 120 is installed on the box body 110.

[0191] In a possible implementation, referring to Figures 2-7As shown, in order to facilitate opening of the dry-wet separation piece 120 for cleaning of the second chamber 112, the dry-wet separation piece 120 can further comprise a handle structure 127. The handle structure 127 is arranged at a side edge of the dry-wet separation piece 120 facing away from the roller brush assembly 20 in the first direction, and can extend in the vertical direction.

[0192] It can be understood that arranging the handle structure 127 at a side edge of the dry-wet separation piece 120 facing away from the roller brush assembly 20 in the first direction can make the handle structure 127 away from the roller brush assembly 20 and other components, ensuring sufficient space for the user to operate and reducing the limitation of the operation space.

[0193] In one possible implementation, referring to Figure 8 As shown, the exhaust passage 124 of the dry-wet separation piece 120 can be arranged in the handle structure 127.

[0194] It can be understood that arranging the exhaust passage 124 in the handle structure 127 can make full use of the space of the handle, reducing the space occupied by additional pipes or passages, and making the overall design more compact and simple.

[0195] In another aspect, the present application provides a cleaning device comprising the floor brush mechanism of any one of the above possible implementations.

[0196] In another aspect, the present application further provides a cleaning system comprising a cleaning base station and the cleaning device described above, the cleaning base station being configured to at least clean the sewage tank 11 of the cleaning device.

[0197] Specifically, the cleaning base station of the present embodiment is used to adapt the floor brush mechanism of the cleaning device, for example, the cleaning base station can perform sewage discharge, self-cleaning, charging, etc. for the floor brush mechanism of the cleaning device. The cleaning device can be a dust collector, a floor washing machine or other devices. In addition to the floor brush mechanism, the cleaning device generally comprises a body and the like, and the user can control and hold the body to drive the outside cleaning operation of the floor brush mechanism.

[0198] The cleaning device and the cleaning system of the present application can effectively separate the solid impurities and the liquid in the sewage due to the use of the above-mentioned floor brush mechanism, so that the solid impurities in the sewage are separated to the first chamber 111 by the dry-wet separation piece 120, and the sewage can flow to the second chamber 112, thereby avoiding the blockage of the water tank assembly 10. In addition, the dry-wet separation piece 120 is provided with a drain 121 communicating the first chamber 111 and the second chamber 112, and by arranging the anti-backflow device 130 at the drain 121, the one-way flow of the sewage in the first chamber 111 to the second chamber 112 can be ensured, and the overflow caused by backflow of the sewage can be avoided, thereby improving the cleaning effect and user experience.

[0199] The embodiments or examples in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be mutually referred to.

[0200] It should be noted that the embodiments referred to in the specification as "one embodiment", "an embodiment", "example embodiment", "some embodiments", etc. can include a specific feature, structure or characteristic, but not necessarily every embodiment. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to implement such a feature, structure or characteristic in combination with other embodiments that are explicitly or implicitly described.

[0201] Generally, the terms should be understood at least in part by the context of their use. For example, the term "one or more" as used herein, depending at least in part upon the context of their use, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures or characteristics in a plural sense. Similarly, terms such as "a" and "the" can be understood to convey a singular usage or a plural usage, depending at least in part upon the context in which such terms are used.

[0202] It should be readily understood that "on", "above", and "over" in the present disclosure should be interpreted in the broadest context to mean not only "directly on", but also to include the meaning of "on" with intermediate features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over", but also can include the meaning of "above" or "over" without intermediate features or layers therebetween (i.e., directly on).

[0203] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A floor brush mechanism, characterized in that, include: Water tank assembly (10) and roller brush assembly (20); The water tank assembly (10) includes a sewage tank (11), which comprises: Box body (110); A wet and dry separation component (120) divides the inner cavity of the main body (110) into a first chamber (111) and a second chamber (112). The first chamber (111) is located on the upper side of the wet and dry separation component (120), and the second chamber (112) is located on the lower side of the wet and dry separation component (120). The wet and dry separation component (120) is provided with a drain outlet (121) that connects the first chamber (111) and the second chamber (112). A fence is provided around the drain outlet (121), and the fence has an overflow port that connects the two sides of the fence. A backflow prevention device (130) is provided at the drain outlet (121) and is configured to allow sewage in the first chamber (111) to flow unidirectionally to the second chamber (112); The roller brush assembly (20) is located on one side of the sewage tank (11) along the first direction and is configured to drive sewage into the first chamber (111) by rotating the roller brush assembly (20).

2. The floor brush mechanism according to claim 1, characterized in that, The fence includes a plurality of barrier posts (125) that are spaced apart circumferentially along the drain outlet (121), and the flow outlet is defined between two adjacent barrier posts (125).

3. The floor brush mechanism according to claim 2, characterized in that, The distance between two adjacent barrier posts (125) is 1mm-10mm.

4. The floor brush mechanism according to claim 2, characterized in that, The height of the barrier post (125) in the vertical direction is 1mm-10mm.

5. The floor brush mechanism according to claim 2, characterized in that, The minimum distance between the barrier post (125) and the edge of the drain outlet (121) is no more than 10 mm.

6. The floor brush mechanism according to claim 1, characterized in that, The anti-backflow device (130) is located in the second chamber (112).

7. The floor brush mechanism according to claim 1, characterized in that, The backflow prevention device (130) is connected to at least one of the dry-wet separation component (120) and the main body of the box (110).

8. The floor brush mechanism according to claim 1, characterized in that, The anti-backflow device (130) defines a flow passage on its inner side. The anti-backflow device (130) has a first state and a second state. In the first state, the flow passage is closed. In the second state, the flow passage is opened under the water pressure of the first chamber (111).

9. The floor brush mechanism according to claim 8, characterized in that, The backflow prevention device (130) is a flexible deformable component.

10. The floor brush mechanism according to claim 8, characterized in that, At least a portion of the structure of the anti-backflow device (130) is made of plastic.

11. The floor brush mechanism according to claim 1, characterized in that, The backflow prevention device (130) has an inlet connected to the drain outlet (121) and an outlet away from the drain outlet (121), with an angle between the opening direction of the inlet and the opening direction of the outlet.

12. The floor brush mechanism according to claim 1, characterized in that, The drain outlet (121) includes multiple drain holes (1211).

13. The floor brush mechanism according to claim 12, characterized in that, The spacing between two adjacent drain holes (1211) is 1mm-10mm; and / or, The total area S of the plurality of drain holes (1211) satisfies: S≥50mm 2 .

14. The floor brush mechanism according to claim 1, characterized in that, The dry-wet separation component (120) includes: The filter section (122) and the drain outlet (121) are both formed in the filter section (122); The water guide section (123) has a water guide slope that is inclined relative to the height direction. The bottom end of the water guide slope is connected to the filter section (122). The water guide section (123) is used to guide sewage to the drain outlet (121).

15. The floor brush mechanism according to claim 14, characterized in that, The height difference of the water guiding slope of the water guiding part (123) along the height direction is 3mm-50mm.

16. The floor brush mechanism according to claim 14, characterized in that, The water guide section (123) surrounds the filter section (122).

17. The floor brush mechanism according to claim 14, characterized in that, The box body (110) has a first sidewall (113) close to the roller brush assembly (20) along the first direction and a second sidewall (114) away from the roller brush assembly (20). The distance between the filter section (122) and the first sidewall (113) is less than the distance between the filter section (122) and the second sidewall (114).

18. The floor brush mechanism according to claim 14, characterized in that, The filter section (122) consists of a plurality of sections spaced apart along the second direction. The water guide section (123) corresponds one-to-one with the filter section (122), and the edges of the two water guide sections (123) corresponding to two adjacent filter sections (122) are connected to each other.

19. The floor brush mechanism according to claim 18, characterized in that, The anti-backflow device (130) corresponds one-to-one with the filter section (122).

20. The floor brush mechanism according to claim 1, characterized in that, The dry-wet separation component (120) is also provided with an exhaust channel (124), one end of which is connected to the first chamber (111) and the other end is connected to the second chamber (112).

21. The floor brush mechanism according to claim 20, characterized in that, The exhaust channel (124) is located on the side of the dry-wet separator (120) away from the roller brush assembly (20) along the first direction.

22. The floor brush mechanism according to claim 20, characterized in that, The exhaust passage (124) is located at both ends of the dry-wet separator (120) along the second direction away from the dry-wet separator.

23. The floor brush mechanism according to claim 20, characterized in that, The exhaust channel (124) has an exhaust outlet located on one side of the first chamber (111), and the height difference between the exhaust outlet and the drain outlet (121) along the height direction is 5mm-30mm.

24. The floor brush mechanism according to claim 1, characterized in that, The dry and wet separation component (120) further includes a connecting part (126) for connecting to the main body of the box (110).

25. The floor brush mechanism according to claim 24, characterized in that, The connecting part (126) has a guide slope that is inclined relative to the height direction on the side facing the roller brush assembly (20).

26. The floor brush mechanism according to claim 25, characterized in that, The guide slope protrudes from the dry-wet separator (120) in the second direction.

27. The floor brush mechanism according to claim 26, characterized in that, The length of the guide slope in the second direction is greater than the length of the brush bristles of the brush assembly (20) in the second direction.

28. The floor brush mechanism according to claim 26, characterized in that, The portion of the guide slope that protrudes along the second direction points towards the drain outlet (121).

29. The floor brush mechanism according to claim 24, characterized in that, The outer peripheral wall of the connecting part (126) is provided with a sealing groove (1261), and the opening of the sealing groove (1261) faces the side wall of the second chamber (112). The sewage tank (11) also includes: A sealing element (115) is fixed to the sealing groove (1261) to seal the gap between the dry and wet separation element (120) and the box body (110).

30. The floor brush mechanism according to claim 29, characterized in that, The inner wall of the sealing groove (1261) includes a bottom wall opposite to the groove opening. The bottom wall has mounting ribs protruding towards the groove opening. The sealing member (115) is provided with a mounting groove that matches the mounting ribs. The mounting ribs are embedded in the mounting grooves.

31. The floor brush mechanism according to claim 24, characterized in that, The connecting part (126) is provided with a fixing structure (1262), and the main body of the box (110) is provided with a fixing fit structure (116) adapted to the fixing structure (1262). The dry and wet separation component (120) and the main body of the box (110) are connected through the fixing structure (1262) and the fixing fit structure (116).

32. The floor brush mechanism according to claim 31, characterized in that, The fixing structure (1262) is located on the edge of the dry and wet separation member (120) along the first direction towards the roller brush assembly (20). The fixing structure (1262) is formed as a fixing rib protruding towards the roller brush assembly (20) along the first direction. The fixed fitting structure (116) is formed as a fixed groove that is adapted to the fixed rib, and the fixed rib is inserted into the fixed groove.

33. The floor brush mechanism according to claim 31, characterized in that, The wet and dry separation component (120) further includes a handle structure (127), which is disposed on the side edge of the wet and dry separation component (120) facing away from the roller brush assembly (20) along the first direction.

34. The floor brush mechanism according to claim 33, characterized in that, The dry and wet separation component (120) is also provided with an exhaust channel (124), which is located in the handle structure (127).

35. A cleaning device, characterized in that, Includes: the floor brush mechanism as described in any one of claims 1-34.

36. A cleaning system, characterized in that, include: Clean base stations; The cleaning equipment of claim 35, wherein the cleaning base station is configured to clean at least the wastewater tank (11) of the cleaning equipment.

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