Sewage tank and cleaning device

Abstract

The embodiment of the present application provides a sewage tank and a cleaning device, the sewage tank comprises a tank body and a solid-liquid separation piece, the tank body has an inlet channel, a negative pressure port, a first chamber and a second chamber, the inlet channel is used for conveying sewage to the first chamber under the action of a negative pressure source; the second chamber is communicated with the first chamber; the solid-liquid separation piece is installed in the first chamber, the solid-liquid separation piece is used for filtering solid sewage conveyed from the inlet channel into the first chamber, and liquid sewage is conveyed into the second chamber through a first communication channel. The sewage tank and the cleaning device provided by the embodiment of the present application, the ground brush is provided with the sewage tank, compared with the related art that the sewage tank is arranged on the machine body, the gravity center of the machine body can be reduced, and then the user can use conveniently. Then the loss of sewage and garbage in the transmission process can be reduced, the cleaning efficiency is improved, and it is ensured that the sewage on the surface to be cleaned can be rapidly and effectively collected.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, and more particularly to a wastewater tank and cleaning equipment. Background Technology

[0002] Cleaning equipment has advantages such as being environmentally friendly, energy-saving, and highly efficient. As people become increasingly aware of the importance of household cleaning efficiency, cleaning equipment has gradually become widely used in daily production and life.

[0003] Currently, after cleaning equipment finishes its work, users usually clean the wastewater tank promptly to drain the wastewater and garbage inside. The wastewater tank is an important component of the cleaning equipment, its main function being the collection of both wet and dry waste, and it typically contains a separation structure for separating wet and dry waste.

[0004] However, wastewater tanks with separation structures are usually installed on the machine body, and solid-liquid separation is achieved by gravity and separation structure. The machine body is relatively heavy, which is inconvenient for users. Utility Model Content

[0005] The present application provides a sewage tank and cleaning equipment, which aims to solve the technical problem in related technologies where the sewage tank with a separation structure is installed on the machine body and solid-liquid separation is achieved by gravity and the separation structure. However, the machine body is heavy and inconvenient for users to use.

[0006] In a first aspect, embodiments of this application provide a wastewater tank and a floor brush installed on a cleaning device. The wastewater tank includes a tank body and a solid-liquid separation component. The tank body has:

[0007] The waste inlet channel is used to connect to the waste inlet of the floor brush;

[0008] Negative pressure port, used to connect to the negative pressure source of cleaning equipment;

[0009] The first chamber is connected to the sewage inlet channel and the negative pressure port. The sewage inlet channel is used to transport sewage into the first chamber under the action of the negative pressure source.

[0010] The second chamber is arranged side by side with the first chamber, and the second chamber is connected to the first chamber;

[0011] The solid-liquid separator is installed in the first chamber and is used to filter solid waste transported from the inlet channel to the first chamber. Liquid waste is transported to the second chamber via the first connecting channel.

[0012] The wastewater tank provided in this embodiment is integrated into the floor brush. Compared to related technologies where the wastewater tank is located on the machine body, this lowers the machine's center of gravity, making it easier for users to operate. Firstly, it reduces wastewater and debris loss during transport, improving cleaning efficiency and ensuring that dirt on the surface to be cleaned is collected quickly and effectively. Secondly, because the wastewater tank is close to the floor brush, users can easily empty the wastewater and debris directly after cleaning, reducing operation steps and cleaning time.

[0013] Furthermore, by installing a solid-liquid separator in the first chamber to filter out liquid contaminants, solid-liquid separation is achieved, facilitating cleaning for different types of contaminants and reducing the time required to clean the wastewater tank. The separated solid contaminants are stored in the first chamber, preventing them from clogging gas flow and ensuring the normal operation of the cleaning equipment and system.

[0014] Optionally, in the aforementioned sewage tank, the tank body further comprises a first connecting channel, the first connecting channel having a connected input end and an output end, the input end being connected to the downstream of the first chamber, and the output end being connected to the upstream of the second chamber;

[0015] The bottom surface of the first chamber is not higher than the input end.

[0016] Through the above design, the wastewater tank can efficiently complete solid-liquid separation. Liquid waste smoothly enters the second chamber, while solid waste remains in the first chamber for easy subsequent cleaning by the user. Furthermore, this operation requires no user intervention, increasing the automation level of the cleaning equipment and thus enhancing user convenience.

[0017] In the aforementioned sewage tank, optionally, the bottom surface of the first chamber is inclined, and the side closer to the first connecting channel is lower than the side farther from the first connecting channel; the extending direction of the bottom surface of the first chamber intersects the horizontal direction, and the angle of intersection is in the range of 3°-45°.

[0018] With the above setup, if the bottom inclination angle is less than 3°, the liquid flow velocity under gravity decreases, which may cause liquid to accumulate in the first chamber, increasing cleaning difficulty. If the bottom inclination angle is greater than 45°, although the liquid flow velocity increases, the liquid impact force is also greater, which may cause liquid splashing in the second chamber, affecting the liquid collection effect. In addition, an excessively large angle may result in an excessively high bottom inclination, affecting the structural stability of the sewage tank and even leading to the risk of the sewage tank tipping over during use.

[0019] Optionally, in the aforementioned sewage tank, the first chamber and the second chamber are separated by a first baffle.

[0020] At least a portion of the first baffle is formed between the bottom surface of the first chamber and the bottom surface of the first chamber, and the drain groove is connected to the input end of the first connecting channel.

[0021] The above-described design improves separation efficiency by preventing liquid accumulation in the first chamber and ensuring smooth flow into the second chamber. Furthermore, the first baffle enhances the structural strength of the wastewater tank, preventing deformation due to liquid flow during operation.

[0022] In the aforementioned sewage tank, optionally, the input end of the first connecting channel faces the bottom surface of the first chamber.

[0023] With the above configuration, the first connecting channel can be connected to the top of the drain tank, and the input end faces the bottom of the first chamber, meaning the opening of the first connecting channel faces downwards. This allows liquid entering the drain tank to easily enter the first connecting channel via the input end. After the liquid enters the drain tank and contacts its top surface, it can continue to flow upwards into the first connecting channel. In this case, the volume of liquid required to achieve a vacuum state in the second chamber for suction is relatively small, meaning the driving component can operate with relatively low power to draw liquid from the drain tank into the first connecting channel.

[0024] In the aforementioned wastewater tank, optionally, the height of the drainage trough is in the range of 3-8 mm;

[0025] And / or, the width of the drainage trough is in the range of 9-13 mm;

[0026] And / or, the volume of the drainage tank is in the range of 1500-2000 mm². 3 ;

[0027] And / or, the cross-sectional area of ​​the first connecting channel ranges from 75 to 125 mm². 2 ;

[0028] And / or, the volume of the first connecting channel ranges from 4500 to 5500 mm. 3 .

[0029] A drainage tank or first connecting channel that meets the above parameters can optimize liquid flow efficiency, improve solid-liquid separation effect, and enhance structural stability. This can avoid the adverse effects of being too large or too small, ensure the efficient operation of the sewage tank, and improve the user experience.

[0030] In the aforementioned sewage tank, optionally, the input end of the first connecting channel is higher than the output end of the first connecting channel, so that the liquid waste flows from the input end to the output end under the action of gravity;

[0031] Alternatively, the input end of the first connecting channel is lower than the output end of the first connecting channel, and at least one of the first chamber, the second chamber, and the first connecting channel is connected to a driving member for driving the liquid contaminant from the first chamber through the first connecting channel into the second chamber.

[0032] With the above configuration, the drive unit ensures that liquid waste flows from the first chamber to the second chamber, reducing the residence time of liquid waste in the first chamber and preventing the liquid waste from mixing with solid waste again after solid-liquid separation. The height difference between the input and output ends further optimizes the flow path, ensuring smooth flow of liquid waste.

[0033] Furthermore, since liquid waste can flow from the first chamber to the second chamber, users only need to handle solid waste in the first chamber and liquid waste in the second chamber separately when emptying the wastewater tank. This design simplifies the user's operation, reduces cleaning time, and thus improves the user experience.

[0034] Optionally, the wastewater tank described above may also include a drive unit connected to the second chamber. The drive unit is used to generate a negative pressure in the second chamber so that the liquid in the first chamber enters the second chamber via the first connecting channel.

[0035] With the above configuration, the drive unit ensures that liquid waste can flow from the first chamber to the second chamber, reducing the residence time of liquid waste in the first chamber and preventing the liquid waste after solid-liquid separation from mixing with solid waste again.

[0036] In the aforementioned sewage tank, optionally, the driving component is disposed outside the tank body, and the driving component is connected to the second chamber via a pipeline;

[0037] And / or, the speed range of the drive is 80-120 ml / s;

[0038] And / or, the volume of the drainage tank and the volume of the first connecting channel are both less than the volume of liquid driven per second by the driving component.

[0039] By using an external drive unit, damage caused by liquid leaks or splashes can be avoided, thus improving the drive unit's lifespan and reliability. Furthermore, separating the drive unit from the housing allows users or maintenance personnel to inspect or repair the drive unit without disassembling the housing, simplifying maintenance procedures. Secondly, external drive unit placement reduces the space occupied within the housing, increasing the integration of the cleaning equipment and facilitating its miniaturization.

[0040] Optionally, in the aforementioned sewage tank, the output end of the first connecting channel has a connecting port, the connecting port facing the second chamber along the horizontal direction, and the connecting port is higher than the input end of the first connecting channel.

[0041] With the above configuration, the connection port being higher than the input end ensures that the liquid will not flow back due to pressure changes during the flow process. This ensures that the liquid can only flow from the first chamber to the second chamber, preventing liquid stagnation or backflow in the first connection channel. The unidirectional flow characteristic of the first connection channel provides stability to the fluid flow, ensuring reliable operation of the sewage tank under different operating conditions.

[0042] Optionally, in the aforementioned sewage tank, the sewage inlet channel has an input end and an output end, the input end of the sewage inlet channel is used to connect to the sewage inlet of the floor brush, and the output end of the sewage inlet channel is disposed on the side wall of the first chamber.

[0043] At least a portion of the sewage inlet channel is embedded within the second chamber.

[0044] With the above configuration, dirt can directly enter the dirt inlet channel from the floor brush, reducing the time dirt spends in the channel and preventing blockages caused by dirt accumulation. The buried dirt inlet channel also reduces its footprint on the external space of the enclosure, improving the compactness of the floor brush. Furthermore, the buried design enhances the structural stability of the dirt inlet channel, reducing the risk of damage from external impacts.

[0045] In the aforementioned sewage tank, optionally, the negative pressure port is located in the second chamber, and the flow area of ​​the sewage inlet channel is the same as the cross-sectional area of ​​the negative pressure port.

[0046] With the above setup, the inlet channel and the negative pressure port have the same area, ensuring that the airflow can evenly draw in dirt and avoid dirt residue caused by uneven airflow. This also improves cleaning efficiency, ensuring that dirt is efficiently sucked into the wastewater tank from the floor brush.

[0047] Optionally, in the above-mentioned sewage tank, the sewage tank further includes a top cover, which is connected to the tank body and covers the first chamber and the second chamber;

[0048] The upper cover has a second connecting channel, which connects the first chamber to the negative pressure port.

[0049] By designing a hinged top cover, the internal structural layout of the wastewater tank can be optimized, reducing the need for external connectors and enhancing the integration and overall cohesion of the tank and floor brush, thus lowering costs. Furthermore, the hinged top cover allows users to easily open and close the tank when cleaning, reducing operational steps and cleaning time. Additionally, the sealed design of the top cover prevents liquid leakage, improving the user experience.

[0050] With the above configuration, the suction airflow provided by the negative pressure source can connect to the first chamber through the negative pressure port, the connecting piece and the second connecting channel, and then connect to the sewage inlet of the floor brush through the sewage inlet channel to provide suction to pick up the sewage and ensure that the sewage can be sucked into the sewage tank from the floor brush.

[0051] Optionally, in the aforementioned sewage tank, the second communication channel includes a first opening and a second opening, wherein the first opening and the second opening are respectively connected to the first chamber and the negative pressure port;

[0052] A second baffle is provided in the second connecting channel, and the second baffle is used to change the length of the airflow path in the second connecting channel.

[0053] With the above configuration, the second connecting channel equipped with a second baffle has a longer airflow path compared to a second connecting channel without a second baffle. Under the influence of the negative pressure source, the airflow and the water vapor generated in the first chamber enter the second connecting channel together. This longer airflow path facilitates the separation of gas and liquid.

[0054] Optionally, a grating is provided at the first opening in the aforementioned sewage tank;

[0055] And / or,

[0056] The upper cover is also provided with a third baffle, which is located upstream of the first opening and there is a gap between the third baffle and the first opening.

[0057] Through the above configuration, the grille ensures that airflow enters the second connecting channel evenly, avoiding eddies or pressure losses caused by uneven airflow; in other words, the grille optimizes airflow distribution. The grille also enhances the structural strength of the first opening and prevents contaminants entering the first chamber via the inlet channel from directly entering the second connecting channel. The third baffle effectively prevents contaminants entering the first chamber via the inlet channel from directly entering the second connecting channel, thus preventing liquid or solid waste from entering the airflow path and causing blockage of the second connecting channel or damage to the negative pressure source.

[0058] In the aforementioned wastewater tank, optionally, the opening of the solid-liquid separator faces upward, and the dimensions of the solid-liquid separator gradually decrease from top to bottom along the height direction Z;

[0059] The solid-liquid separator is spaced apart from the wall of the first chamber.

[0060] The above design ensures that waste entering the first chamber via the inlet channel can smoothly enter the solid-liquid separator. Simultaneously, solid waste settles more easily to the bottom of the separator under gravity. The conical structure of the separator facilitates the settling of solid waste, while the liquid gradually concentrates during flow, making it easier to discharge, thus improving the efficiency of solid-liquid separation. Furthermore, the airflow can smoothly pass through the space between the solid-liquid separator and the wall of the first chamber, preventing direct impact of liquid on the first chamber wall, reducing splashing, and preventing solid waste from adhering to the wall, facilitating user cleaning.

[0061] In the aforementioned sewage tank, optionally, the wall of the first chamber includes a bottom wall and a side wall connecting the bottom wall;

[0062] The distance between the solid-liquid separator and the bottom wall of the first chamber is in the range of 3mm-7mm;

[0063] And / or, the distance between the solid-liquid separation element and the sidewall of the first chamber is in the range of 0.5mm-2mm;

[0064] And / or, when at least a drainage groove is formed between the first baffle and the bottom surface of the first chamber, the distance between the bottom walls of the first chamber in the height direction Z is greater than or equal to the height of the drainage groove.

[0065] By setting the intervals as described above, the liquid flow path is optimized, reducing the risk of solid waste entering the drainage tank and thus preventing solid waste blockage.

[0066] In the aforementioned wastewater tank, optionally, the solid-liquid separation component includes a filter section and an enclosure section, wherein the filter section has filter holes and is close to the bottom wall of the first chamber, and the enclosure section surrounds the periphery of the filter section.

[0067] The enclosure has a through hole; and / or, the enclosure is provided with a raised rib, the raised rib being located on the opposite side of the sewage inlet channel and extending toward the sewage inlet channel.

[0068] The above-described design increases the filtration area through the through-holes, allowing more contaminants to enter the filter section simultaneously and improving filtration efficiency. The raised ribs, located on the opposite side of the inlet channel, guide contaminants before they enter the filter section, effectively reducing direct impact from contaminants and thus lowering the risk of wear and clogging. Furthermore, the ribs extend towards the inlet channel, ensuring direct contact with incoming contaminants, optimizing the flow path and reducing residence time. In addition, the ribs enhance the structural strength of the enclosure, preventing damage caused by external impacts or internal pressure changes.

[0069] Optionally, the wastewater tank described above may also include a guide member located on the periphery of the output end of the wastewater inlet channel, and the guide member extending in a direction away from the second chamber.

[0070] The guide is connected to one of the housing, the top cover, and the solid-liquid separator.

[0071] By incorporating the aforementioned guide components, it is ensured that waste can smoothly enter the first chamber, preventing it from stagnating in the inlet channel and ensuring that waste exits only into the first chamber, while also preventing splashing within the first chamber. The connection of the guide components enhances their structural strength, preventing damage from impacts by waste. Furthermore, the guide components, used to direct waste into the first chamber, optimize the internal layout of the wastewater tank.

[0072] Optionally, in the aforementioned wastewater tank, the guide and the solid-liquid separator are integrated as a single unit.

[0073] The integrated design can improve the structural strength of the guide, prevent damage to the guide due to the impact of dirt, and thus improve the durability of the guide and the solid-liquid separation component.

[0074] In the aforementioned wastewater tank, optionally, when the top cover is closed and connected to the tank body,

[0075] The guide abuts against the upper cover;

[0076] And / or, the upper cover is further provided with a third baffle, the third baffle abutting against the guide; along the orientation of the output end of the sewage inlet channel, the third baffle is not located downstream of the sewage inlet channel.

[0077] Through the above-described design, the guide ensures that the wastewater tank maintains a good seal during use, preventing liquid leakage and thus improving the tank's reliability. Furthermore, when the cover is closed, the guide provides additional support to the cover, preventing deformation due to external impacts or internal pressure changes, ensuring stable operation of the wastewater tank.

[0078] The third baffle and guide components work together seamlessly to ensure smooth airflow and liquid flow. This also enhances the structural strength of the wastewater tank, preventing damage from external impacts or internal pressure changes, thus improving the tank's reliability. Furthermore, the third baffle is not located downstream of the inlet channel, meaning it does not obstruct the entry of waste into the first chamber, ensuring that waste is effectively drawn into the first chamber.

[0079] Optionally, in the aforementioned wastewater tank, when the top cover is also provided with a third baffle,

[0080] The third baffle is located upstream of the second connecting channel of the upper cover and abuts against the side wall of the first chamber and the guide.

[0081] And / or, the height of the third baffle is greater than or equal to the height of the first opening;

[0082] And / or, in the height direction, the distance between the side of the third baffle away from the upper cover and the bottom surface of the solid-liquid separator is greater than or equal to the height of the first opening;

[0083] And / or, the height of the third baffle is in the range of 10-30mm.

[0084] With the above configuration, the third baffle can effectively prevent dirt entering the first chamber through the inlet channel from directly entering the second connecting channel, thereby preventing liquid or solid waste from entering the airflow path and causing blockage of the second connecting channel or damage to the negative pressure source.

[0085] Optionally, in the aforementioned wastewater tank, the top cover is provided with a concealed handle;

[0086] And / or, one of the top cover or the housing is provided with a locking element for locking the top cover and the housing.

[0087] With the above design, the hidden handle can be built into or embedded in the top cover, so that the handle will not protrude from the surface of the top cover when not in use, thus achieving concealment. This avoids the snagging or collision problems that may be caused by traditional exposed handles, thereby improving the user's operating experience and enhancing convenience and safety.

[0088] In the aforementioned sewage tank, optionally, both ends of the handle are connected to the side of the top cover away from the tank body, and at least the middle portion of the handle is elastic so that the handle can fit against the top cover;

[0089] Alternatively, the top cover may have a receiving groove on the side opposite to the box body, the handle may be located in the receiving groove, and one end of the handle may be connected to the top cover by a torsion spring.

[0090] With the above design, the handle will not protrude from the surface of the cover when not in use, thus not taking up space above the cover. At the same time, it can maintain the flatness of the cover surface and improve the aesthetics of the sewage tank and cleaning equipment.

[0091] In the aforementioned sewage tank, optionally, a first rotating shaft is provided on the side of the top cover and the tank body away from the locking member, and the first rotating shaft has a through groove recessed toward the locking member; a second rotating shaft is provided on the side of the other top cover and the tank body away from the locking member, and the second rotating shaft is rotatably disposed in the through groove.

[0092] When the sewage tank is in a closed state, the first rotating shaft and the second rotating shaft cooperate with each other to restrict the upper cover from moving relative to the tank body along the axial extension direction of the first rotating shaft;

[0093] When the sewage tank is in the open state, the first rotating shaft and the second rotating shaft cooperate with each other to allow the top cover to move relative to the tank body along the axial extension direction of the first rotating shaft.

[0094] Through the above-described configuration, the cooperation between the first and second rotating shafts prevents the sewage tank from accidentally opening due to external impacts or vibrations, ensuring the stability of the connection between the cover and the tank body. Simultaneously, this tight connection enhances the sealing between the cover and the tank body, effectively preventing liquid leakage and improving the reliability of the sewage tank and the cleaning equipment.

[0095] Optionally, in the above-mentioned sewage tank, the tank body is provided with the first rotating shaft, the first rotating shaft having a rotating shaft opening that connects the through groove with the external environment, and the rotating shaft opening is disposed away from the locking member;

[0096] The upper cover is provided with a second rotating shaft, and a fixing part is provided on at least one side of the second rotating shaft. The second rotating shaft is connected to the box body through the fixing part.

[0097] When the sewage tank is in the closed state, the fixing part is located in the through groove and is disposed away from the opening of the rotating shaft. The fixing part is located on one side of the first rotating shaft to restrict the upper cover from moving relative to the tank body along the axial extension direction of the first rotating shaft.

[0098] When the sewage tank is in the open state, the fixing part can be rotated to the opening of the rotating shaft so that the fixing part is located at the opening of the rotating shaft, thereby allowing the upper cover to move relative to the tank body along the axial extension direction of the first rotating shaft.

[0099] Through the above-described configuration, the cooperation between the first and second rotating shafts prevents the sewage tank from accidentally opening due to external impacts or vibrations, ensuring the stability of the connection between the cover and the tank body. Simultaneously, this tight connection enhances the sealing between the cover and the tank body, effectively preventing liquid leakage and improving the reliability of the sewage tank and the cleaning equipment.

[0100] In the aforementioned sewage tank, optionally, the locking member is rotatably connected to the tank body, and a limit protrusion is provided on the side of the locking member away from the tank body;

[0101] The limiting protrusion is configured to abut against the limiting groove of the tank body when the locking member is in the locked state and the sewage tank is located on the floor brush, so that the locking member cannot rotate.

[0102] With the above-described design, the limiting protrusion and the limiting part can cooperate to prevent liquid leakage and improve the reliability and safety of the cleaning equipment. Furthermore, the cooperation between the limiting protrusion and the limiting groove ensures simple and reliable locking operation, optimizing the user experience.

[0103] In the aforementioned wastewater tank, optionally, the volume of the first chamber is greater than or equal to 450 ml; the rate at which the negative pressure source draws in gas is greater than or equal to 1100 ml / s; and the ratio between the volume of gas drawn in by the negative pressure source per second and the volume of the first chamber is in the range of 2-3.

[0104] And / or, the minimum volume of liquid submerging the input end of the first communication channel is in the range of 40-60 ml, and the speed range of the drive is 80-120 ml / s;

[0105] And / or, along the horizontal direction, the length of the first chamber is L1, the length of the second chamber is L2, and the relationship between L1 and L2 is: 1 / 2≤L2 / L1≤3 / 4;

[0106] And / or, the distance between the top surface of the floor brush and the axis of rotation of the roller brush of the floor brush is H1, the height of the floor brush is H2, and the relationship between H1 and H2 is: 0.7≤H1 / H2≤0.8;

[0107] And / or, when the wastewater tank is located on the floor brush, in the height direction, the centerline of the wastewater tank is located between the axis of rotation of the roller brush and the top surface of the roller brush of the floor brush.

[0108] By setting the parameters of the first chamber as described above, it can be ensured that the first chamber has sufficient space for collecting and initially separating contaminants, while the second chamber has sufficient space to store liquid. Furthermore, the aforementioned proportional relationship can optimize the chamber layout within the tank, ensuring that both the first and second chambers meet the requirements.

[0109] Secondly, this application also provides a cleaning device, including a floor brush, a body, and a wastewater tank. The wastewater tank is disposed on the floor brush, and a negative pressure source is disposed inside the body, with the negative pressure source located at the lower part of the body. Attached Figure Description

[0110] To more clearly illustrate the implementation methods in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings.

[0111] Figure 1 This is a schematic diagram of the structure of the cleaning system provided in the embodiments of this application;

[0112] Figure 2 This is a schematic diagram of the structure of the cleaning equipment body provided in the embodiments of this application;

[0113] Figure 3 This is a schematic diagram of the first exploded structure of the cleaning equipment provided in the embodiments of this application;

[0114] Figure 4 This is a schematic diagram of a second exploded structure of the cleaning equipment provided in the embodiments of this application;

[0115] Figure 5 An exploded structural diagram of a portion of the floor brush and a portion of the wastewater tank of the cleaning equipment provided in an embodiment of this application;

[0116] Figure 6 A first exploded structural diagram of the floor brush of the cleaning equipment provided in this application embodiment;

[0117] Figure 7 This is a schematic diagram of a first structure of a sewage tank provided in an embodiment of this application;

[0118] Figure 8 This is a second exploded view of the floor brush of the cleaning equipment provided in the embodiments of this application;

[0119] Figure 9 This is a schematic diagram of the structure of the sewage tank provided in the embodiments of this application;

[0120] Figure 10 A schematic diagram of a first cross-sectional structure of the sewage tank provided in an embodiment of this application;

[0121] Figure 11 A schematic diagram of a second cross-sectional structure of the sewage tank provided in an embodiment of this application;

[0122] Figure 12 This is a schematic diagram of the first exploded structure of a sewage tank provided in an embodiment of this application;

[0123] Figure 13 This is a schematic diagram of a second structure of a sewage tank provided in an embodiment of this application;

[0124] Figure 14 A three-dimensional structural diagram of the top cover of the sewage tank provided in an embodiment of this application;

[0125] Figure 15 A cross-sectional view of the top cover of the sewage tank provided in an embodiment of this application;

[0126] Figure 16 This is a schematic diagram of the solid-liquid separation component of the sewage tank provided in the embodiments of this application;

[0127] Figure 17 A top view of the floor brush of the cleaning equipment provided in this embodiment of the application, excluding the top cover;

[0128] Figure 18 A schematic cross-sectional view of the floor brush of the cleaning equipment provided in this application embodiment;

[0129] Figure 19 A second cross-sectional view of the floor brush of the cleaning equipment provided in this application embodiment;

[0130] Figure 20 This is a schematic diagram of the sewage tank in a closed state, provided in an embodiment of this application.

[0131] Figure 21 This is a schematic diagram of the sewage tank in the open state provided in an embodiment of this application;

[0132] Figure 22 A first cross-sectional view of a portion of the structure of the floor brush of the cleaning equipment provided in this application embodiment;

[0133] Figure 23 A second cross-sectional view of a portion of the structure of the floor brush of the cleaning equipment provided in this application embodiment;

[0134] Figure 24 A three-dimensional structural diagram of a portion of the floor brush structure of the cleaning equipment provided in this application embodiment;

[0135] Figure 25 This is a third cross-sectional view of a portion of the structure of the floor brush of the cleaning equipment provided in this application embodiment.

[0136] Explanation of reference numerals in the attached figures:

[0137] 10. Cleaning system; X: Horizontal direction; Y: Preset travel direction; Z: Vertical direction;

[0138] 20. Cleaning equipment;

[0139] 100. Floor brush; 101. Sewage inlet; 102. Groove; 103. Mounting cavity; 104. Limiting groove;

[0140] 110. Roller brush; 120. Filter element; 130. Drive motor; 140. Sewage inlet pipe; 141. Horizontal section; 142. Vertical section;

[0141] 200. Body; 210. Negative pressure source; 220. Battery pack;

[0142] 300. Sewage tank;

[0143] 310. Housing; 311. Sewage inlet channel; 312. Negative pressure port; 313. First chamber; 3131. Bottom wall; 3132. Side wall; 314. Second chamber; 315. First connecting channel; 3151. Connecting port; 316. First baffle; 317. First rotating shaft; 3171. Through groove; 3172. Rotating shaft opening; 318. Limiting part; 319. Drainage trough;

[0144] 320. Solid-liquid separation component; 321. Filter section; 322. Enclosing section; 323. Through hole; 324. Rib; 330. Drive component;

[0145] 340. Top cover; 341. Second connecting channel; 342. Connecting component; 343. First opening; 344. Second opening; 345. Grille; 346. Second baffle; 347. Third baffle; 348. Receiving groove; 349. Second rotating shaft; 3491. Fixing part;

[0146] 350. Handle;

[0147] 360. Guide component; 370. Locking component; 371. Limiting protrusion; 380. Sealing component;

[0148] 400. Clean water tank; 410. Clean water piping;

[0149] 500. Steering structure;

[0150] 600. Pipeline; 610. Rotating pipe; 620. Connecting pipe. Detailed Implementation

[0151] To make the objectives, implementation methods and advantages of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only some embodiments of this application, and not all embodiments.

[0152] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0153] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a series of components is not necessarily limited to those that are explicitly listed, but may include other components that are not explicitly listed or that are inherent to such product or device.

[0154] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0155] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0156] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0157] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0158] Reference Figure 1In one aspect, embodiments of this application provide a cleaning system 10, including a base station 11 and a cleaning device 20, wherein the cleaning device 20 can be placed on the base station 11.

[0159] Understandably, after cleaning the surface, the cleaning device 20 can be placed on the base station 11 for positioning, charging, self-cleaning, drying, or water supply and drainage. The base station 11 has a designated placement location for the cleaning device 20, enabling its precise placement. The base station 11 also has a charging interface for charging the cleaning device 20. The base station 11 may be equipped with a water inlet pipe and a wastewater outlet pipe to fill the clean water tank of the cleaning device 20 and drain the wastewater tank 300. The base station 11 may also have a drying device for drying the cleaned cleaning device 20.

[0160] It should be noted that the base station 11 generally needs to be fixed on the surface to be cleaned in order to support the operation of the cleaning equipment 20.

[0161] It is understood that the cleaning device 20 can be of different types. For example, the cleaning device 20 can be a robot vacuum cleaner, a robot mop, a robot vacuum and mop combo, or a floor scrubber, etc. Different types of cleaning devices 20 all have corresponding base stations 11.

[0162] The following explanation uses the cleaning equipment 20, a floor scrubber, as an example.

[0163] Reference Figures 1-5 Secondly, this application also provides a cleaning device 20, including a floor brush 100, a body 200, and a wastewater tank 300. The floor brush 100 is provided with a wastewater tank 300 and has a wastewater inlet 101. When the body 200 is working on the surface to be cleaned, dirt can enter the wastewater tank 300 through the wastewater inlet 101, that is, the wastewater tank 300 is used to collect the dirt sucked up by the floor brush 100 through the wastewater inlet 101.

[0164] Understandably, the floor brush 100 is equipped with a wastewater tank 300. Firstly, this reduces wastewater and debris loss during transport, improving cleaning efficiency and ensuring that dirt on the surface to be cleaned is collected quickly and effectively. Secondly, because the wastewater tank 300 is located close to the floor brush 100, it allows users to directly empty the wastewater and debris after cleaning, reducing operating steps and cleaning time.

[0165] Furthermore, referring to Figure 2The main body 200 contains a negative pressure source 210 and a battery pack 220. The negative pressure source 210 can refer to a suction fan used to provide suction power. The negative pressure source 210 is located at the lower part of the main body 200, close to the floor brush 100 and the wastewater tank 300, thereby shortening the distance between the negative pressure source 210 and the wastewater tank 300 and reducing suction power loss.

[0166] Reference Figure 2 In some embodiments, the cleaning device 20 further includes a clean water tank 400, which provides clean water to the cleaning device 20 for the floor brush 100 to perform mopping. The clean water tank 400 is located on the body 200 and above the negative pressure source 210 and the battery pack 220.

[0167] Understandably, the placement of the clean water tank 400 at the top helps to balance the weight distribution of the cleaning equipment 20, preventing it from wobbling or tipping over during cleaning due to an unstable center of gravity, thus improving the stability and operability of the cleaning equipment 20. Furthermore, the clean water tank 400 is placed separately from the negative pressure source 210 and the battery pack 220, reducing mutual interference. For example, the water in the clean water tank 400 will not directly affect the negative pressure source 210 and the battery pack 220 below, avoiding electrical malfunctions caused by water splashes or leaks, and improving the safety and reliability of the cleaning equipment 20.

[0168] Reference Figure 2 In some embodiments, the body 200 also includes a circuit board 230, which is located above the negative pressure source 210 and the battery pack 220. That is, the circuit board 230 and the water tank 400 are both located above the negative pressure source 210 and the battery pack 220. When the body 200 is in a flat position, the circuit board 230 can be located above the water tank 400 to avoid the water in the water tank 400 affecting the circuit board 230.

[0169] Reference Figure 5 , Figure 6 and Figure 7 Thirdly, this application also provides a sewage tank 300, which includes a tank body 310 and a solid-liquid separator 320. The tank body 310 has a sewage inlet channel 311 and a negative pressure port 312.

[0170] Specifically, the inlet channel 311 is used to connect to the inlet 101 of the floor brush 100, and the negative pressure port 312 is used to connect to the negative pressure source 210 of the cleaning equipment 20. That is, under the action of the negative pressure source 210 of the machine body 200, the dirt is sucked up by the cleaning equipment 20 by the airflow. The dirt and airflow can enter the housing 310 and stay in the wastewater tank 300 through the inlet 101 and the inlet channel 311 in sequence. The airflow can enter the housing 310 through the inlet 101 and the inlet channel 311 in sequence and flow to the negative pressure source 210 through the negative pressure port 312 to complete the airflow circulation.

[0171] It should be noted that the floor brush 100 is equipped with a wastewater tank 300, which includes different situations.

[0172] In some embodiments, if the sewage tank 300 and the floor brush 100 are integrated, the sewage inlet channel 311 and the sewage inlet 101 are integrated, that is, the sewage inlet 101 is the entrance of the sewage inlet channel 311, so as to form a connection between the sewage inlet channel 311 and the sewage inlet 101.

[0173] It should be noted that the sewage tank 300 can be a solid structure, such as having a shell, which refers to the aforementioned tank 310. The shell forms a cavity for containing sewage and the aforementioned sewage inlet channel 311. In this case, the sewage tank 300 and the floor brush 100 are an integral part, meaning that the shell of the sewage tank 300 and the floor brush 100 are integrally formed.

[0174] In some other embodiments, if the wastewater tank 300 does not have a solid structure, for example, if the floor brush 100 has a cavity formed on it to hold waste, and this cavity forms the wastewater tank 300, then the wastewater tank 300 and the floor brush 100 are an integral part, meaning that the wastewater tank 300 is formed on the floor brush 100. In this case, part of the structure of the cavity formed on the floor brush 100 is the aforementioned tank 310. Similarly, the floor brush 100 has the aforementioned wastewater inlet channel 311 and wastewater inlet 101.

[0175] In some other embodiments, if the wastewater tank 300 and the floor brush 100 are independent structures, the wastewater tank 300 can be installed on the floor brush 100. In this case, the wastewater inlet channel 311 is formed on the wastewater tank 300, and the wastewater inlet 101 is formed on the floor brush 100. When the wastewater tank 300 is located on the floor brush 100, the wastewater inlet 101 is located at the input position of the wastewater inlet channel 311, so as to form a connection between the wastewater inlet channel 311 and the wastewater inlet 101.

[0176] It is understood that the cleaning device 20 can move along a preset travel direction Y on the surface to be cleaned in order to complete the cleaning process. The preset travel direction Y refers to the travel direction of the cleaning device 20.

[0177] Reference Figure 6In the preset travel direction Y, the roller brush 110 is located at the front of the sewage tank 300, and the machine body 200 is located at the rear of the sewage tank 300, so that the sewage enters the sewage tank 300 through the roller brush 110 under the suction of the airflow, and finally flows to the negative pressure source 210 through the negative pressure port 312.

[0178] Reference Figure 8 The housing 310 also has a first chamber 313 and a second chamber 314.

[0179] It is understood that waste may include sewage liquid and solid waste. In order to facilitate the user to clean the sewage tank 300, the first chamber 313 and the second chamber 314 may be a solid chamber and a liquid chamber for collecting solid waste and sewage liquid, respectively.

[0180] Reference Figure 9 In some embodiments, the first chamber 313 and the second chamber 314 are connected, meaning the solid chamber and the liquid chamber are connected. Along the suction airflow direction of the negative pressure source 210, the second chamber 314 is located downstream of the first chamber 313, meaning the airflow first enters the first chamber 313 and then flows from the first chamber 313 to the second chamber 314.

[0181] Furthermore, the solid-liquid separator 320 is used to achieve solid-liquid separation. For example, the solid-liquid separator 320 is installed within the first chamber 313.

[0182] It is understood that the solid-liquid separator 320 can be one or more of the following structures or devices with a certain pore size: filter screen, filter plate, centrifugal separator, etc. In this way, the solid-liquid separator 320 can filter solid waste transported from the sewage inlet channel 311 to the first chamber 313, while liquid waste is transported to the second chamber 314 via the first connecting channel 315, thereby achieving the separation of solid waste and liquid waste, facilitating subsequent separate treatment, and improving the sewage treatment efficiency and effect of the sewage tank 300.

[0183] Specifically, when the cleaning equipment 20 is working, the floor brush 100 sucks up the waste (including solid waste and liquid waste) through the waste inlet 101 and enters the first chamber 313 of the wastewater tank 300. The solid-liquid separator 320 utilizes its own structural characteristics, such as the pore size of the filter screen and the rotation speed of the centrifuge, to trap solid waste on one side or surface of the solid-liquid separator 320, while liquid waste flows to the other side through the pores of the solid-liquid separator 320 or under the action of centrifugal force, and flows to the downstream second chamber 314 through the first connecting channel 315, thereby achieving solid-liquid separation.

[0184] The wastewater tank 300 provided in this embodiment is integrated into the floor brush 100. Compared to related technologies where the wastewater tank 300 is mounted on the body 200, this lowers the center of gravity of the body 200, making it easier for users to operate. It also reduces wastewater and debris loss during transport, improving cleaning efficiency and ensuring that dirt on the surface to be cleaned is collected quickly and effectively. Furthermore, because the wastewater tank 300 is close to the floor brush 100, users can easily empty the wastewater and debris directly after cleaning, reducing operation steps and cleaning time.

[0185] Furthermore, by installing a solid-liquid separator 320 in the first chamber 313 to filter out liquid contaminants, solid-liquid separation is achieved, facilitating cleaning for different types of contaminants and reducing the time required for cleaning the wastewater tank 300. The separated solid contaminants are stored in the first chamber 313, preventing them from clogging gas flow and ensuring the normal operation of the cleaning equipment 20 and the cleaning system 10.

[0186] Reference Figure 9 In some embodiments, the first chamber 313 and the second chamber 314 may be arranged side by side along the horizontal direction X.

[0187] Understandably, because the two chambers are arranged side by side, the flow path of waste within the wastewater tank 300 is relatively simple and smooth, without complex detours or ascending / descending movements. This reduces energy loss and collisions with the tank walls during flow, thereby improving waste collection efficiency. Simultaneously, this side-by-side arrangement makes the overall structure of the wastewater tank 300 more compact, enabling a larger wastewater collection capacity within a limited space and improving space utilization.

[0188] It should be noted that the horizontal direction X refers to the direction of extension of the horizontal plane. Therefore, the side-by-side arrangement can include various possibilities, such as left and right side-by-side, front and back side-by-front, partially top and bottom side-by-top, or left front and right back side-by-side, etc. The embodiments of this application do not limit the various forms of side-by-side arrangement, nor are they limited to the above examples. That is, any side-by-side arrangement that satisfies the horizontal direction X is within the protection scope of this application.

[0189] It should be noted that the housing 310 is also provided with chamber openings for opening the first chamber 313 and the second chamber 314. The chamber openings can be located at any position on the housing 310, such as the side or the top. In this embodiment, the chamber opening is located on the top surface of the housing 310.

[0190] Reference Figure 9As an optional implementation, the housing 310 also has a first connecting channel 315, which has an input end and an output end connected together. The input end is connected to the downstream of the first chamber 313, and the output end is connected to the upstream of the second chamber 314, so as to form a connection between the first chamber 313 and the second chamber 314. This can ensure that liquid waste can flow from the first chamber 313 to the second chamber 314 according to a preset path, thereby achieving effective separation of liquid waste and solid waste.

[0191] Understandably, when the cleaning equipment 20 is working, the dirt first enters the first chamber 313. After preliminary solid-liquid separation and sedimentation in the first chamber 313, the separated wastewater liquid can flow into the second chamber 314 through the first connecting channel 315 for collection.

[0192] Without the first connecting channel 315, all the waste would accumulate in the first chamber 313, which could cause the first chamber 313 to fill up quickly, affecting the continuous working capacity of the cleaning equipment 20. The presence of the first connecting channel 315 allows the wastewater tank 300 to make fuller use of the space and function of the two chambers, thereby improving the overall waste treatment efficiency.

[0193] It should be noted that the downstream of the input end connected to the first chamber 313 means that, in the direction of fluid flow, the fluid first passes through the first chamber 313 and then through the input end of the first connecting channel 315. The upstream of the output end connected to the second chamber 314 means that, in the direction of fluid flow, the fluid enters the first connecting channel 315 and then enters the second chamber 314.

[0194] It is understandable that, since the first chamber 313 is provided with a solid-liquid separator 320, the fluid flowing downstream of the first chamber 313 refers to the liquid after being separated by the solid-liquid separator 320.

[0195] The bottom surface of the first chamber 313 is not higher than the input end. It is understood that this condition (the bottom surface of the first chamber 313 not being higher than the input end) can occur in various ways. For example, the bottom surface of the first chamber 313 may be an inclined plane, with the bottom end of the inclined plane close to the input end. Under gravity, liquid contaminants can flow into the first connecting channel 315, preventing liquid accumulation in the first chamber 313. Another example is that the bottom surface of the first chamber 313 may be a flat plane, with the entire bottom surface of the first chamber 313 higher than the input end. There is a height difference between the bottom surface of the first chamber 313 and the input end, allowing liquid output from the first chamber 313 to automatically fall into the input end.

[0196] Meanwhile, the input end of the first connecting channel 315 is connected to the downstream of the first chamber 313. As can be seen from the foregoing, the input end of the first connecting channel 315 is higher than the first chamber 313, so liquid cannot flow back from a lower position to a higher position, thereby preventing the backflow of liquid contaminants.

[0197] The output end of the first connecting channel 315 is connected to the upstream of the second chamber 314. In some embodiments, for example, the second chamber 314 is lower than the output end of the first connecting channel 315, so that the liquid in the first connecting channel 315 can flow directly to the second chamber 314. In other embodiments, the first connecting channel 315 is connected to a power structure, which can drive the liquid to flow from the first connecting channel 315 to the second chamber 314. With the above configuration, the liquid in the first connecting channel 315 can flow to the second chamber 314 through the output end, thereby preventing liquid contaminants from accumulating in the first connecting channel 315.

[0198] Through the above design, the wastewater tank 300 can efficiently complete solid-liquid separation. Liquid waste smoothly enters the second chamber 314, while solid waste remains in the first chamber 313, facilitating subsequent cleaning by the user. Furthermore, the above operation requires no user intervention, increasing the automation level of the cleaning equipment 20 and thus improving user convenience.

[0199] Reference Figure 10 As an optional implementation, the bottom surface of the first chamber 313 is inclined, and the side closer to the first connecting channel 315 is lower than the side farther from the first connecting channel 315, i.e., the two sides of the first chamber 313 have different heights, thus forming a height difference. In this way, the centers of gravity on both sides of the first chamber 313 are different, and under the action of gravity, liquid waste can flow smoothly from the higher area to the lower area of ​​the first chamber 313, then flow into the first connecting channel 315, and finally enter the second chamber 314. The inclined bottom surface of the first chamber 313 can effectively prevent liquid from accumulating in the first chamber 313, ensuring efficient liquid flow.

[0200] Furthermore, the extension direction a of the bottom surface of the first chamber 313 intersects the horizontal direction X, and the intersection angle A ranges from 3° to 45°.

[0201] By setting the angle A between the bottom surface and the horizontal direction X within the range of 3°-45°, a balance between fluid flow efficiency and structural stability can be ensured. Smaller angles (such as 3°) provide sufficient structural stability, while larger angles (such as 45°) ensure high fluid flow efficiency. The aforementioned angle range can balance flow efficiency and structural strength.

[0202] It should be noted that the angle between the extending direction of the bottom surface of the first chamber 313 and the horizontal direction X can be any angle within the range described above. For example, the angle between the extending direction of the bottom surface of the first chamber 313 and the horizontal direction X can be any one of 3°, 4°, 5°, 6°, 7°, 8°, 9°, 10°, 20°, 40°, 41°, 42°, 43°, 44°, 45°, etc. The embodiments of this application do not limit this, nor are they limited to the above examples.

[0203] For example, if the bottom inclination angle is less than 3°, the liquid flow velocity under gravity decreases, which may cause liquid to accumulate in the first chamber 313, increasing the difficulty of cleaning. If the bottom inclination angle is greater than 45°, although the liquid flow velocity increases, the liquid impact force is also greater, which may cause liquid to splash in the second chamber 314, affecting the liquid collection effect. In addition, an excessively large angle may cause the bottom inclination to be too high, affecting the structural stability of the sewage tank 300, and even causing the sewage tank 300 to tip over during use.

[0204] With the above setup, users only need to clean the solid waste in the first chamber 313 and the liquid waste in the second chamber 314 separately, without having to deal with mixed waste, thereby shortening cleaning time and improving user experience.

[0205] Reference Figure 10 As an optional implementation, the first chamber 313 and the second chamber 314 are separated by a first baffle 316. The first baffle 316 acts as a physical barrier, effectively preventing solid waste from entering the second chamber 314 and ensuring that the solid waste remains in the first chamber 313.

[0206] Reference Figure 10 and Figure 11 A drain groove 319 is formed between at least a portion of the first baffle 316 and the bottom surface of the first chamber 313, and the drain groove 319 is connected to the input end of the first connecting channel 315. The drain groove 319 allows liquid to flow to the first connecting channel 315 so that the liquid can enter the second chamber 314.

[0207] Without the first baffle 316 or the drain trough 319, liquid and solid waste may mix, making cleaning difficult. Liquid may not flow smoothly and could accumulate in the first chamber 313, further increasing cleaning difficulty. Furthermore, the lack of a physical barrier could allow solid waste to enter the second chamber 314, reducing separation efficiency and increasing the user's cleaning burden.

[0208] Through the above-described configuration, the drainage trough 319 improves separation efficiency while preventing liquid accumulation in the first chamber 313, ensuring smooth entry of liquid into the second chamber 314. Furthermore, the first baffle 316 enhances the structural strength of the wastewater tank 300, ensuring that structural deformation does not occur due to liquid flow during use.

[0209] It should be noted that the drain trough 319 can be opened at the bottom of the first baffle 316, and the drain trough 319 can extend along the extension direction of the first baffle 316, that is, to form a drain trough 319 with a relatively large length, which is conducive to the liquid in the first chamber 313 flowing into the first flow channel.

[0210] It is understandable that the first connecting channel 315 can be connected to the top of the drain tank 319, so that the flow area of ​​the first connecting channel 315 and the drain tank 319 is large, which can increase the speed at which liquid flows from the drain tank 319 into the first connecting channel 315.

[0211] Reference Figure 11 As an optional implementation, the input end of the first communication channel 315 faces the bottom surface of the first chamber 313.

[0212] It is understood that, as can be seen from the foregoing, the first connecting channel 315 can be connected to the top of the drain tank 319, and the bottom surface of the first chamber 313 is facing downwards, meaning that the opening of the first connecting channel 315 is facing downwards. In this way, the liquid entering the drain tank 319 can easily enter the first connecting channel 315 through the input end.

[0213] For example, after the liquid enters the drain tank 319 and contacts the top surface of the drain tank 319, the liquid can continue to flow upward into the first connecting channel 315. In this case, the volume of liquid required to achieve the vacuum state of the second chamber 314 for suction is small, that is, the drive unit 330 can operate with relatively low power to draw the liquid from the drain tank 319 into the first connecting channel 315.

[0214] Furthermore, the cross-sectional area of ​​the first connecting channel 315 ranges from 75 to 125 mm². 2 In some embodiments, the volume of the first connecting channel 315 ranges from 4500 to 5500 mm. 3 .

[0215] For example, if the cross-sectional area is less than 75 square millimeters, the liquid flow path is narrower, and the liquid flow resistance is greater. This may increase the residence time of the liquid in the first connecting channel 315, thereby increasing the possibility of liquid mixing with solid waste and reducing separation efficiency. Furthermore, an excessively small cross-sectional area may result in insufficient structural strength of the first connecting channel 315, thus affecting the overall stability of the wastewater tank 300. The volume of the first connecting channel 315 is less than 4500 mm². 3 Similarly, I will not elaborate further here.

[0216] Another example is that if the cross-sectional area is greater than 125 square millimeters, the liquid flow velocity will be too fast, resulting in excessive liquid impact force and causing liquid splashing, which may affect the liquid collection effect of the second chamber 314. At the same time, an excessively large cross-sectional area may lead to a bulky structure in the first connecting channel 315, occupying too much space and thus affecting the overall layout and structural strength of the sewage tank 300. The volume of the first connecting channel 315 is greater than 5500 mm². 3 Similarly, I will not elaborate further here.

[0217] The first connecting channel 315, with a cross-sectional area within the aforementioned range, can optimize liquid flow efficiency, improve solid-liquid separation, and enhance structural stability. This can avoid the adverse effects of an excessively small or large cross-sectional area, ensuring the efficient operation of the sewage tank 300 and improving the user experience.

[0218] In some embodiments, the shape of the drain trough 319 can be arbitrary. For example, the shape of the drain trough 319 can be a cuboid, a cube, a cylinder, etc. The embodiments of this application do not limit the specific shape of the drain trough 319, nor are they limited to the above examples.

[0219] The following explanation uses the cuboid shape of the drain tank 319 as an example.

[0220] Furthermore, in some embodiments, the height of the drain trough 319 ranges from 3mm to 8mm, where height refers to the dimension of the drain trough 319 in the vertical direction Z, and the width of the drain trough 319 ranges from 9mm to 13mm, where width refers to the dimension of the drain trough 319 in the horizontal direction X. In some embodiments, the volume of the drain trough 319 ranges from 1500 to 2000 mm². 3 .

[0221] For example, if the height of the drain trough 319 is less than 3 mm, the liquid flow path is narrower, and the liquid flow resistance is greater. This may increase the residence time of the liquid in the first connecting channel 315, thereby increasing the possibility of liquid mixing with solid waste and reducing separation efficiency. The width of the drain trough 319 is less than 9 mm, and the volume of the drain trough 319 is less than 1500 mm². 3The same principle applies to all cases, so I will not elaborate further here.

[0222] For example, if the height of the drain trough 319 is greater than 8mm, an excessively high drain trough 319 may result in lower structural strength of the first baffle 316, thereby affecting the stability of the sewage tank 300. The width of the drain trough 319 is greater than 13mm, and the volume of the drain trough 319 is greater than 2000mm². 3 The same principle applies to all cases, so I will not elaborate further here.

[0223] The drainage tank 319 that meets the above parameters can optimize liquid flow efficiency, improve solid-liquid separation effect, and enhance structural stability. This can avoid the adverse effects of being too large or too small, ensure the efficient operation of the sewage tank 300, and improve the user experience.

[0224] As an alternative implementation, there may be different possibilities between the input and output terminals of the first communication channel 315.

[0225] In some embodiments, the input end of the first connecting channel 315 is higher than the output end of the first connecting channel 315, so that the liquid waste flows from the input end to the output end under the action of gravity. That is, the sewage tank 300 can realize the flow of liquid without setting additional structures, which is low cost.

[0226] In some embodiments, the input end of the first communication channel 315 is lower than the output end of the first communication channel 315, and at least one of the first chamber 313, the second chamber 314 and the first communication channel 315 is connected to a drive member 330 for driving liquid waste from the first chamber 313 through the first communication channel 315 into the second chamber 314.

[0227] It should be noted that the power of the drive unit 330 needs to be sufficient to allow the liquid to flow smoothly through the drain tank 319 and the first connecting channel 315. For example, the volume of the drain tank 319 and the volume of the first connecting channel 315 are both less than the volume of liquid driven by the drive unit 330 per second.

[0228] It is understood that the drive element 330 can be of different types of structures. For example, the drive element 330 can be a motor providing positive pressure. In this case, the drive element 330 can be located within the first chamber 313 and provide pressure to drive liquid into the first connecting channel 315, such as a pump that provides compressed air, nitrogen, or other compressed gas toward the first flow channel. Another example is that the drive element 330 can be a motor providing negative pressure, such as a vacuum pump. In this case, the drive element 330 can be located within the second chamber 314 and provide suction to draw liquid into the second chamber 314. Yet another example is that the drive element 330 can also be a liquid pump located within the first connecting channel 315, which can draw liquid from the first chamber 313 and deliver it to the second chamber 314. The foregoing embodiments can be combined in any way.

[0229] The following explanation uses a vacuum machine that provides negative pressure, with drive component 330, as an example.

[0230] Understandably, if the volume of the drain tank 319 is greater than the power of the drive component 330, the drive component 330 is prone to air leakage when it is suctioning, resulting in insufficient suction, and thus the liquid cannot pass smoothly through the drain tank 319; if the volume of the first connecting channel 315 is greater than the power of the drive component 330, the drive component 330 is prone to air leakage when it is suctioning, and there is a whistling sound, resulting in insufficient suction, and thus the liquid cannot pass smoothly through the drain tank 319.

[0231] It should be noted that if the volume of the drain tank 319 is too small, solid dirt such as mud and sand that cannot be completely separated will clog the drain tank 319 or the first connecting channel 315, and the cleaning equipment 20 will not be able to continue to work; if the volume of the first connecting channel 315 is too small, the liquid cannot be drained in time, and there will be a lot of liquid in the first chamber 313.

[0232] Understandably, the power of the drive unit 330 is also related to the clean water pump connected to the clean water tank 400. For example, the rate at which the drive unit 330 draws in liquid needs to be greater than the rate at which the clean water pump discharges water, so that the clean water exiting the clean water tank 400 can be promptly drawn into the second chamber 314 by the drive unit 330.

[0233] As can be seen from the foregoing, when using the drive unit 330, if the height of the drain tank 319 is too high, the liquid in the first chamber 313 cannot be drawn into the second chamber 314 in time, resulting in the airflow of the drive unit 330 blowing water.

[0234] As can be seen from the foregoing, when using the drive component 330, if the volume is smaller than the vacuum pump's speed, a large volume will cause air leakage and a whistling sound, while a small volume will not be able to expel the air in time, resulting in a large amount of water in the dry chamber.

[0235] With the above configuration, the drive unit 330 ensures that liquid waste can flow from the first chamber 313 to the second chamber 314, reducing the residence time of liquid waste in the first chamber 313 and preventing the liquid waste after solid-liquid separation from mixing with solid waste again. The height difference between the input end and the output end further optimizes the flow path, ensuring smooth flow of liquid waste.

[0236] Furthermore, since liquid waste can flow from the first chamber 313 to the second chamber 314, when cleaning the wastewater tank 300, the user only needs to handle the solid waste in the first chamber 313 and the liquid waste in the second chamber 314 separately. This design simplifies the user's operation, reduces cleaning time, and thus improves the user experience.

[0237] The following explanation uses the example of the drive unit 330 connecting to the second chamber 314. That is, the drive unit 330 is used to generate negative pressure in the second chamber 314 so that the liquid in the first chamber enters the second chamber 314 through the first connecting channel 315.

[0238] In some embodiments, refer to Figure 17 The clean water tank 400 can be connected to the roller brush 110 via a clean water pipe 410 embedded in the floor brush 100. In this way, clean water can be transferred from the clean water tank 400 to the roller brush via the clean water pipe 410. The clean water can be used to clean the roller brush or to clean the surface to be cleaned. Understandably, the portion of the clean water pipe 410 away from the roller brush 110 can continue to extend until it connects to the clean water tank 400 on the machine body 200.

[0239] By setting up the water pipe 410 buried on the floor brush 100, the space of the water pipe 410 can be reduced, making it easier to miniaturize and lighten the cleaning equipment 20 and the cleaning system 10.

[0240] In some embodiments, refer to Figure 12 The drive unit 330 is disposed in the second chamber 314 within the housing 310. Specifically, the input end of the drive unit 330 corresponds to the first connecting channel 315, and the output end of the drive unit 330 is located within the second chamber. The drive unit 330 is used to draw liquid from the first chamber 313 into the first connecting channel 315. In this case, the drive unit 330 is a liquid pump, disposed in the second chamber 314. The inlet of the liquid pump connects to the first chamber 313, meaning the inlet is equivalent to the input end of the first connecting channel 315; the outlet of the liquid pump is located in the second chamber 314, meaning the outlet is equivalent to the output end of the first connecting channel 315. Therefore, the flow channel between the inlet and outlet is equivalent to the first connecting channel 315.

[0241] As an optional implementation, the drive unit 330 is disposed outside the housing 310, and the drive unit 330 is connected to the second chamber 314 through a pipeline. For example, the drive unit 330 is a vacuum machine that provides negative pressure, and the external drive unit 330 is connected to the negative pressure port 312 of the second chamber 314 to cause the second chamber 314 to be in a vacuum state.

[0242] Understandably, by using an external drive unit 330, damage to the drive unit 330 due to liquid leakage or splashing can be avoided, thereby improving the service life and reliability of the drive unit 330. Furthermore, by separating the drive unit 330 from the housing 310, users or maintenance personnel can inspect or repair the drive unit 330 without disassembling the housing 310, simplifying maintenance operations. Secondly, the external placement of the drive unit 330 reduces the space occupied inside the housing 310, improving the integration of the cleaning equipment 20 and facilitating its miniaturization.

[0243] In some embodiments, the minimum volume of liquid submerging the input end of the first communication channel 315 ranges from 40 to 60 ml. It is understood that the minimum volume can be any value within the above range, such as 40 ml, 45 ml, 50 ml, 55 ml, 60 ml, etc. This application embodiment does not limit this, nor is it limited to the above examples.

[0244] Furthermore, in order to ensure that the liquid can flow under the drive of the drive member 330, the speed of the drive member 330 needs to be greater than the minimum volume of the liquid submerging the input end of the first connecting channel 315. Specifically, the speed range of the drive member 330 is 80-120 ml / s, that is, the speed at which the drive member 330 drives the liquid per second is 1.5 times to 3 times the minimum volume of the liquid submerging the input end of the first connecting channel 315.

[0245] If the speed of the drive unit 330 is too low or the aforementioned minimum volume is too large, the drive unit 330 cannot extract the liquid in the first chamber 313 in time, and thus cannot complete the solid-liquid separation. If the speed of the drive unit 330 is too high or the aforementioned minimum volume is too small, since the first chamber 313 is connected to the second chamber 314, the liquid in the second chamber 314 is easily drawn out by excessive suction, which affects the solid-liquid separation effect of the sewage tank 300.

[0246] Reference Figure 11 As an optional implementation, the output end of the first communication channel 315 is formed with a communication port 3151, which faces the second chamber 314 in the horizontal direction X, to ensure that the liquid can smoothly enter the second chamber 314. This can reduce the possibility of liquid splashing and ensure that the liquid is evenly distributed in the second chamber 314.

[0247] The connecting port 3151 is higher than the input end of the first connecting channel 315 to ensure that the liquid will not splash due to height difference during flow. Based on this, the liquid enters the second chamber 314 in the horizontal direction X, avoiding liquid rebound caused by vertical impact, thereby reducing liquid splashing and improving liquid collection efficiency.

[0248] Furthermore, the fact that the connecting port 3151 is higher than the input end allows the first connecting channel 315 to store a larger amount of liquid, ensuring that the liquid will not flow back due to pressure changes during flow. This ensures that the liquid can only flow from the first chamber 313 to the second chamber 314, preventing liquid stagnation or backflow in the first connecting channel 315. The unidirectional flow characteristic of the first connecting channel 315 improves flow stability, ensuring reliable operation of the sewage tank 300 under different operating conditions.

[0249] It is understood that the shape of the connection port 3151 can be arbitrary. For example, the shape of the connection port 3151 can be a square, rectangle, circle, triangle, etc. The embodiments of this application do not limit the specific shape of the connection port 3151, nor are they limited to the above examples.

[0250] Reference Figure 9 As an optional implementation, the sludge inlet channel 311 has an input end 311a and an output end 311b. The input end 311a of the sludge inlet channel 311 is used to connect to the sludge inlet 101 of the floor brush 100, ensuring that dirt can directly enter the sludge inlet channel 311 from the floor brush 100, which can reduce the residence time of dirt in the sludge inlet channel 311 and avoid the blockage problem caused by dirt accumulation.

[0251] The output end 311b of the sewage inlet channel 311 is located on the side wall 3132 of the first chamber 313. It is understood that in order to ensure that the sewage output from the sewage inlet channel 311 can pass through the solid-liquid separator 320, the output end 311b of the sewage inlet channel 311 needs to be higher than the solid-liquid separator 320 so that the solid-liquid separator 320 can receive the sewage output from the sewage inlet channel 311 and perform solid-liquid separation.

[0252] At least part of the sewage inlet channel 311 is embedded in the second chamber 314. That is, by utilizing the second chamber 314, the space occupied by the sewage inlet channel 311 on the external space of the housing 310 and the first chamber 313 can be reduced, thereby improving the compactness of the floor brush 100. At the same time, the embedded design can enhance the structural stability of the sewage inlet channel 311 and reduce the risk of damage caused by external impacts.

[0253] As an optional implementation, the negative pressure port 312 is opened in the second chamber 314. The flow area of ​​the sewage inlet channel 311 is the same as the cross-sectional area of ​​the negative pressure port 312, ensuring that the airflow will not have eddies or pressure loss due to changes in cross-sectional area during the flow process, that is, reducing energy loss and improving the overall efficiency of airflow.

[0254] Furthermore, the above-mentioned configuration, with the inlet channel 311 and the negative pressure port 312 having the same area, ensures that the airflow can evenly draw in dirt, avoiding dirt residue caused by uneven airflow. It also improves cleaning efficiency, ensuring that dirt is efficiently drawn from the floor brush 100 into the wastewater tank 300.

[0255] It is understandable that the areas of the sewage inlet channel 311 and the negative pressure port 312 are the same and both larger than the area of ​​the air intake of the negative pressure source 210. If either the area of ​​the sewage inlet channel 311 or the area of ​​the negative pressure port 312 is smaller than the area of ​​the air intake of the negative pressure source 210, on the one hand, the airflow generated by the negative pressure source 210 will produce a whistling sound, resulting in significant noise; on the other hand, the suction power loss of the negative pressure source 210 for extracting sewage will be greater, affecting the normal operation of the cleaning equipment 20.

[0256] It should be noted that, referring to Figure 7 The negative pressure port 312 being located in the second chamber 314 means that the entrance of the negative pressure source 210 to the housing 310 is located in the second chamber 314, and the negative pressure port 312 is connected to the first chamber 313. That is, the second chamber 314 is provided with a structure that connects the negative pressure port 312 and the first chamber 313.

[0257] Reference Figure 8 and Figure 13 As an optional implementation, the wastewater tank 300 also includes a top cover 340, which is closable and connected to the tank body 310. The top cover 340 covers the first chamber 313 and the second chamber 314, allowing the user to open or close the wastewater tank 300. By providing the closable top cover 340, the internal structural layout of the wastewater tank 300 can be optimized, reducing the need for external connectors to the tank body 310. This enhances the integration and overall cohesion of the wastewater tank 300 and the floor brush 100, reducing costs. Furthermore, the closable connection of the top cover 340 allows users to easily open and close the tank body 310 when cleaning the wastewater tank 300, reducing operation steps and cleaning time. Additionally, the sealing design of the top cover 340 prevents liquid leakage, improving the user experience.

[0258] Furthermore, referring to Figure 13 and Figure 14 The upper cover 340 has a second connecting channel 341, which connects the first chamber 313 and the negative pressure port 312. That is, the negative pressure port 312 is connected to the first chamber 313 through the second connecting channel 341 formed by the upper cover 340.

[0259] The top cover 340, as described above, ensures that airflow can flow smoothly from the first chamber 313 to the negative pressure port 312, thereby reducing airflow resistance in the channel and improving the continuity and stability of airflow.

[0260] Reference Figure 8In some embodiments, a sealing element 380 may be provided between the top cover 340 and the housing 310. The sealing element 380 can seal between the first chamber 313 and the second chamber 314 in the horizontal direction X, and seal between the top cover 340 and the housing 310 in the vertical direction Z. That is, the sealing element 380 is disposed on the periphery of the first chamber 313 and the second chamber 314.

[0261] It should be noted that, as mentioned above, the pouring opening is located on the top surface of the box 310, that is, the top cover 340 is connected to the top of the box 310 when it opens and closes.

[0262] In some embodiments, refer to Figure 13 In order for the negative pressure port 312 to connect to the second connecting channel 341, the negative pressure port 312 can be opened on the side of the second chamber 314 and located near the top cover 340. Furthermore, a connecting member 342 can be provided between the negative pressure port 312 and the second connecting channel 341. The connecting member 342 can be integrally connected to the housing 310 or integrally connected to the top cover 340.

[0263] In this embodiment, the connecting member 342 is integrally connected to the box body 310, so that when the top cover 340 covers the box body 310, the connecting member 342 can correspond to the second connecting channel 341.

[0264] With the above configuration, the suction airflow provided by the negative pressure source 210 can connect to the first chamber 313 via the negative pressure port 312, the connecting piece 342 and the second connecting channel 341, and then connect to the sewage inlet 101 of the floor brush 100 via the sewage inlet channel 311 to provide suction to pick up the sewage and ensure that the sewage can be sucked into the sewage tank 300 from the floor brush 100.

[0265] Reference Figure 14 In some embodiments, the second communication channel 341 includes a first opening 343 and a second opening 344, the first opening 343 and the second opening 344 respectively connecting the first chamber 313 and the negative pressure port 312. (Refer to...) Figure 15 A second baffle 346 is provided in the second connecting channel 341, and the second baffle 346 is used to change the length of the airflow path in the second connecting channel 341.

[0266] It is understood that the second baffle 346 is located between the second connecting channels 341, and the extension direction of the second baffle 346 intersects with the airflow direction to change the airflow path, thereby changing the length of the airflow path in the second connecting channel 341.

[0267] It should be noted that the second connecting channel 341 equipped with the second baffle 346 has a longer airflow path compared to the second connecting channel 341 without the second baffle 436. Under the action of the negative pressure source 210, the airflow and the water vapor generated in the first chamber 313 enter the second connecting channel 341 together. The longer airflow path facilitates the separation of gas and liquid.

[0268] Reference Figures 13-15 As an optional implementation, a grille 345 is provided at the first opening 343. The grille 345 may extend along the orientation of the first opening 343, or it may be arranged to intersect with the orientation of the first opening 343.

[0269] Understandably, the grille 345 can ensure that the airflow can enter the second connecting channel 341 evenly, avoiding eddies or pressure loss caused by uneven airflow, that is, the grille 345 can optimize the airflow distribution.

[0270] Furthermore, the grille 345 can enhance the structural strength at the first opening 343 and prevent dirt, especially solid dirt, that enters the first chamber 313 through the sewage inlet channel 311 from directly entering the second connecting channel 341.

[0271] Reference Figures 13-15 As an optional implementation, the top cover 340 is also provided with a third baffle 347. The third baffle 347 is located upstream of the first opening 343. The third baffle 347 can effectively prevent dirt entering the first chamber 313 through the dirt inlet channel 311 from directly entering the second connecting channel 341, so as to prevent liquid or solid waste from entering the airflow path, thereby causing the second connecting channel 341 to be blocked or the negative pressure source 210 to be damaged.

[0272] Furthermore, there is a gap between the third baffle 347 and the first opening 343 to maintain the mutual communication between the first chamber 313 and the first opening 343.

[0273] In some embodiments, the third baffle 347 has a certain height, for example, the height of the third baffle 347 is in the range of 10-30mm.

[0274] If the height of the third baffle 347 is less than 10mm, the airflow guiding effect may be weakened, leading to airflow dispersion and increased turbulence and pressure loss. At the same time, a lower height may not effectively prevent liquid splashing and solid waste from entering, affecting water vapor separation.

[0275] Conversely, if the height of the third baffle 347 exceeds 30mm, the resistance when the airflow enters the second connecting channel 341 may increase, leading to increased energy loss and thus reducing the efficiency of airflow circulation. Excessive height may also occupy too much space, affecting the internal layout and structural compactness of the sewage tank 300. Furthermore, manufacturing and installation costs may increase due to the increased height.

[0276] In some embodiments, the height of the third baffle 347 is greater than or equal to the height of the first opening 343, so that the third baffle 347 can block liquid splashing, thereby achieving the effect of blocking water vapor.

[0277] In some embodiments, in the height direction Z, the distance between the side of the third baffle 347 away from the upper cover 340 and the bottom surface of the solid-liquid separator 320 is greater than or equal to the height of the first opening 343. This ensures that the wind speed at the first opening 343 is the same as the wind speed at which the opening between the third baffle 347 and the bottom surface of the solid-liquid separator 320 is formed. If the distance between the side of the third baffle 347 away from the upper cover 340 and the bottom surface of the solid-liquid separator 320 is less than the height of the first opening 343, the wind speed at which the opening between the third baffle 347 and the bottom surface of the solid-liquid separator 320 is larger, the airflow will carry more water vapor, and this water vapor will enter the negative pressure source 210, thus affecting the normal use of the cleaning equipment 20.

[0278] Reference Figure 12 As an optional implementation, the top cover 340 is provided with a hidden handle 350, which means that when not in use, the handle 350 can be close to the outer surface of the top cover 340 to achieve concealment.

[0279] For example, the handle 350 can be built into or embedded in the cover 340, so that the handle 350 does not protrude from the surface of the cover 340 when not in use, thus achieving concealment. The above arrangement avoids the snagging or collision problems that may occur with traditional exposed handles 350, thereby improving the user's operating experience and enhancing convenience and safety.

[0280] In addition, the concealed handle 350 reduces space occupation, making the wastewater tank 300 more compact when stored or used. At the same time, the concealed handle 350 makes the surface of the top cover 340 relatively flat, which can improve the aesthetics of the wastewater tank 300 and the cleaning equipment 20, conforming to the minimalist aesthetics of modern home appliances.

[0281] In some embodiments, the two ends of the handle 350 are connected to the side of the top cover 340 away from the box body 310, and at least the middle portion of the handle 350 is elastic so that the handle 350 can fit against the top cover 340.

[0282] Specifically, the two ends of the handle 350 are connected to the side of the top cover 340 away from the tank body 310, ensuring that users can easily grasp the handle 350 and optimize the operating experience. The middle part of the handle 350 is flexible and can fit the top cover 340 to avoid taking up space, making the sewage tank 300 more compact when stored or used, while maintaining the flatness of the surface of the top cover 340 and improving the appearance.

[0283] For example, the concealed handle 350 can be made of an elastic strip of fabric with both ends connected to the top cover 340 on the side opposite to the box body 310.

[0284] Reference Figure 12 In some other embodiments, the top cover 340 has a receiving groove 348 on the side opposite to the housing 310, and the handle 350 is located in the receiving groove 348. The receiving groove 348 provides storage space for the handle 350. In this way, the handle 350 will not protrude from the surface of the top cover 340 when not in use, without occupying the space above the top cover, while maintaining the flatness of the surface of the top cover 340, which can improve the aesthetics of the sewage tank 300 and the cleaning equipment 20.

[0285] One end of the handle 350 is connected to the top cover 340 via a torsion spring, allowing the handle 350 to pop out easily when in use and retract automatically when not in use, thus optimizing the user's operating experience.

[0286] In addition, the torsion spring can enhance the structural strength of the handle 350, enabling it to withstand greater tensile forces during use and reducing the risk of damage caused by external impacts.

[0287] As an optional implementation, when the opening of the sewage tank 300 faces upwards, the solid-liquid separator 320 can also be configured to have its opening facing upwards. This ensures that waste entering the first chamber 313 via the sewage inlet channel 311 can smoothly enter the solid-liquid separator 320, while solid waste settles more easily to the bottom of the solid-liquid separator 320 under gravity. This makes it convenient for the solid-liquid separator 320 to hold solid waste and also makes it easy for the user to remove and empty the solid-liquid separator 320.

[0288] The solid-liquid separator 320 has a tapered shape formed by gradually decreasing dimensions from top to bottom along the height direction Z. This tapered structure facilitates the settling of solid waste and allows the liquid to gradually concentrate during flow, making it easier to discharge and thus improving the efficiency of solid-liquid separation. In addition, the tapered structure makes it easy for the user to remove the separator from the first chamber 313 and also facilitates the user to install the cleaned solid-liquid separator 320 into the first chamber 313.

[0289] The solid-liquid separator 320 is spaced apart from the wall of the first chamber 313 to ensure that airflow can pass smoothly through the space between them, preventing liquid from directly impacting the wall of the first chamber 313, reducing splashing, and preventing solid waste from adhering to the wall, making it easier for the user to clean. Furthermore, the aforementioned spacing facilitates the user's installation and removal of the solid-liquid separator 320, and the airflow through the waste inlet channel 311 is buffered by this spacing, thereby reducing the airflow velocity and preventing the airflow carrying waste from impacting the solid-liquid separator 320 and the first chamber 313, causing dents in these components.

[0290] Understandably, the aforementioned solid-liquid separator 320 helps to expand the receiving area of ​​waste, allowing more waste to smoothly enter the separator for separation. Specifically, under the influence of gravity, solid waste, due to its larger mass, gradually sinks to the bottom of the separator 320, while liquid waste is relatively concentrated at the top. This natural stratification creates favorable conditions for subsequent solid-liquid separation, improving the efficiency and effectiveness of the separation.

[0291] In some embodiments, the solid-liquid separator 320 has a filter structure for solid-liquid separation. Specifically, the filter structure has a specific pore size and mesh distribution to intercept solid waste and allow liquid waste to flow out through the mesh, thereby achieving solid-liquid separation.

[0292] Understandably, when waste containing solid debris and liquid contaminants enters the solid-liquid separator 320, under the influence of the airflow generated by the negative pressure source 210, the liquid contaminants flow through the mesh of the filter screen and into the second chamber 314 via the first connecting channel 315, while the solid debris, being larger than the filter screen's pore size, is intercepted on the filter screen. By appropriately selecting the pore size of the filter screen, targeted separation can be achieved based on the particle distribution of contaminants during the actual cleaning process. For example, larger solid debris such as dust particles, hair, and paper scraps can be intercepted, while liquid contaminants and smaller particles are allowed to pass through, thereby achieving efficient solid-liquid separation.

[0293] Reference Figure 16 Furthermore, in some embodiments, the wall of the first chamber 313 includes a bottom wall 3131 and a side wall 3132 connecting the bottom wall 3131. Thus, the spacing between the solid-liquid separator 320 and the wall of the first chamber 313 can refer to the bottom wall 3131, the side wall 3132, or both the solid-liquid separator 320 and the bottom wall 3131 and the side wall 3132 of the first chamber 313 are spaced apart.

[0294] For example, if the solid-liquid separator 320 is spaced apart from the bottom wall 3131 of the first chamber 313, the distance between the solid-liquid separator 320 and the bottom wall 3131 of the first chamber 313 ranges from 3mm to 7mm. If the distance is less than 3mm, the liquid flow path narrows, which may lead to liquid accumulation and splashing, and also increases the risk of solid waste entering the drain tank 319. If the distance is greater than 7mm, the liquid flow path widens, which may lead to slow liquid flow, increase the residence time of liquid below the separator, and reduce separation efficiency.

[0295] As can be seen from the foregoing, when the tank body 310 of the sewage tank 300 has a drain trough 319, the distance between the solid-liquid separator 320 and the bottom wall 3131 of the first chamber 313 is greater than or equal to the height of the drain trough 319. This ensures that the solid waste is higher than the drain trough 319, which can reduce the impact of the suction force of the drive component 330 on the solid waste and prevent the solid waste from detaching from the solid-liquid separator 320 and entering the drain trough 319, causing blockage.

[0296] For example, if the solid-liquid separator 320 is spaced apart from the side wall 3132 of the first chamber 313, the distance between the solid-liquid separator 320 and the side wall 3132 of the first chamber 313 ranges from 0.5mm to 2mm. If the distance is less than 0.5mm, the airflow path narrows, which may increase airflow resistance and affect the cleaning efficiency of the system. If the distance is greater than 2mm, liquid may splash on the side wall 3132, increasing liquid residence time, reducing separation efficiency, and potentially increasing the risk of solid waste adhesion.

[0297] By setting the intervals as described above, the liquid flow path is optimized, reducing the risk of solid waste entering the drain tank 319 and thus preventing solid waste blockage.

[0298] Reference Figure 16 As an optional implementation, the solid-liquid separator 320 includes a filter section 321 and a surrounding section 322. The filter section 321 has filter holes 3211 and is close to the bottom wall 3131 of the first chamber 313. The surrounding section 322 surrounds the periphery of the filter section 321.

[0299] As can be seen from the foregoing, the filter section 321 refers to the aforementioned filter screen structure, and the enclosure section 322 is used to enclose the filter section 321 so that dirt can enter the filter section 321 along the enclosure section 322 to complete solid-liquid separation.

[0300] Reference Figure 16 In some embodiments, the enclosure 322 has through holes 323. The through holes 323 can increase the filtration area, allowing more contaminants to enter the filtration section 321 simultaneously, thereby improving filtration efficiency.

[0301] It should be noted that there can be multiple through holes 323, and these multiple through holes 323 can be arranged at intervals.

[0302] Reference Figure 16 In some embodiments, the enclosure portion 322 is provided with a protruding rib 324, which is located on the opposite side of the sewage inlet channel 311 and extends toward the sewage inlet channel 311. The protruding rib 324 may extend along the height direction Z.

[0303] Understandably, the raised rib 324, located on the opposite side of the inlet channel 311, guides the wastewater before it flows into the filter section 321, thereby ensuring that the raised rib 324 effectively reduces the direct impact of wastewater on the filter section 321, thus reducing the risk of wear and clogging of the filter section 321. Simultaneously, the raised rib 324 extends towards the inlet channel 311, ensuring it can directly act on the entering wastewater, optimizing the flow path and reducing residence time. Furthermore, the raised rib 324 enhances the structural strength of the enclosure section 322, preventing damage caused by external impacts or internal pressure changes.

[0304] It should be noted that there can be multiple ribs 324, and multiple ribs 324 can be arranged at intervals.

[0305] Reference Figure 16 In this embodiment of the application, the rib 324 may be located between two adjacent through holes 323.

[0306] Reference Figure 17 As an optional implementation, the wastewater tank 300 also includes a guide 360 ​​located around the output end of the wastewater inlet channel 311 to ensure that waste can smoothly enter the first chamber 313 and prevent waste from accumulating in the wastewater inlet channel 311. Furthermore, the guide 360 ​​prevents the distance between the output end of the wastewater inlet channel 311 and the first opening 343 from being too close. Without a guide structure, the airflow carrying liquid waste exiting from the output end of the wastewater inlet channel 311 could easily be sucked into the first opening 343, causing the cleaning device 20 to malfunction.

[0307] The guide 360 ​​extends in a direction away from the second chamber 314 to ensure that dirt can be discharged only toward the first chamber 313, while avoiding dirt splashing in the first chamber 313.

[0308] The guide 360 ​​is connected to one of the tank body 310, the top cover 340, and the solid-liquid separator 320 to enhance the structural strength of the guide 360 ​​and prevent it from being damaged by the impact of dirt. Furthermore, the guide 360 ​​is used to guide dirt into the first chamber 313, which can optimize the internal layout of the wastewater tank 300.

[0309] Reference Figure 16In this embodiment of the application, the guide 360 ​​is connected to the solid-liquid separator 320.

[0310] Furthermore, in some embodiments, the guide 360 ​​and the solid-liquid separator 320 are integrated. This integrated design improves the structural strength of the guide 360, prevents damage from contaminant impact, and thus enhances the durability of both the guide 360 ​​and the solid-liquid separator 320.

[0311] As an optional implementation, when the wastewater tank 300 includes an openable and closable top cover 340, and the top cover 340 is closedly connected to the tank body 310, the guide 360 ​​abuts against the top cover 340. Specifically, the top surface of the guide 360 ​​abuts against the top cover 340 to form a seal and prevent liquid leakage between the top cover 340 and the tank body 310.

[0312] Through the above-mentioned design, the guide 360 ​​ensures that the wastewater tank 300 maintains good sealing during use, preventing liquid leakage and thus improving the reliability of the wastewater tank 300. Additionally, when the top cover 340 is closed, the guide 360 ​​provides extra support for the top cover 340, preventing deformation of the top cover 340 due to external impacts or internal pressure changes, ensuring stable operation of the wastewater tank 300.

[0313] It should be noted that when the cover 340 is closed, the guide 360 ​​can automatically abut against the cover 340 without the need for additional seals or fixing devices, thereby reducing the manufacturing cost of the sewage tank 300.

[0314] Reference Figures 13-15 As an optional implementation, the top cover 340 is also provided with a third baffle 347, which abuts against the guide 360; along the orientation of the output end of the sewage inlet channel 311, the third baffle 347 is not located downstream of the sewage inlet channel 311.

[0315] Understandably, by setting the third baffle 347, the third baffle 347 and the guide 360 ​​can form a tight fit, ensuring that the air and liquid can flow smoothly, and can also improve the internal structural strength of the sewage tank 300, avoiding damage to the sewage tank 300 caused by external impact or internal pressure changes, thus improving the reliability of the sewage tank 300.

[0316] In addition, the third baffle 347 is not located downstream of the sewage inlet channel 311, meaning that the third baffle 347 will not block the sewage inlet channel 311 from entering the first chamber 313, thus ensuring that the sewage is sucked into the first chamber 313.

[0317] By setting a third baffle 347 to abut against the guide 360 ​​and ensuring that the third baffle 347 is not located downstream of the sewage inlet channel 311, this application optimizes the airflow path, reduces liquid splashing, prevents solid waste accumulation, enhances structural stability, and optimizes the liquid flow path. This design ensures the efficient operation of the sewage tank 300 and improves the user experience.

[0318] Furthermore, the third baffle 347 is located upstream of the second connecting channel 341 of the upper cover 340. The third baffle 347 can effectively prevent the dirt that enters the first chamber 313 through the dirt inlet channel 311 from directly entering the second connecting channel 341, so as to prevent liquid or solid waste from entering the airflow path, thereby causing the second connecting channel 341 to be blocked or the negative pressure source 210 to be damaged.

[0319] Reference Figure 18 The third baffle 347 abuts against the side wall 3132 of the first chamber 313 and the guide 360, so that the side wall 3132 of the first chamber 313, the guide 360 ​​and the third baffle 347 can form a tight fit, which can improve the internal structural strength of the sewage tank 300, avoid damage to the sewage tank 300 caused by external impact or internal pressure changes, and thus improve the reliability of the sewage tank 300.

[0320] Reference Figure 19 In some embodiments, one of the top cover 340 or the housing 310 is provided with a locking element 370 for locking the top cover 340 and the housing 310.

[0321] Understandably, the locking element 370 ensures a tight connection between the top cover 340 and the tank 310, preventing accidental opening due to external impacts or internal pressure changes. The locking element 370 also improves the stability of the wastewater tank 300, ensuring it remains sealed under various operating conditions.

[0322] It should be noted that the locking component 370 can achieve the locking function through mechanical structure (such as buckle, pin, etc.) to ensure the sealing between the top cover 340 and the box 310 and prevent liquid leakage.

[0323] In this embodiment of the application, a limiting part 318 may be provided on the housing 310, and the locking member 370 may rotate until it engages with the limiting part 318 to achieve locking between the upper cover 340 and the housing 310.

[0324] Reference Figure 19 As an optional implementation, the locking element 370 is rotatably connected to the housing 310 so that the position between the housing 310 and the top cover 340 can be flexibly adjusted to switch between locking and unlocking.

[0325] A limiting protrusion 371 is provided on the side of the locking member 370 away from the housing 310. The limiting protrusion 371 is configured to abut against the limiting groove 104 of the housing 310 when the locking member 370 is in the locked state and the sewage tank 300 is located on the floor brush 100, so that the locking member 370 cannot rotate, that is, the locking member 370 cannot be unlocked when the sewage tank 300 is installed on the floor brush 100.

[0326] With the above configuration, the limiting protrusion 371 and the limiting groove 104 can cooperate with each other to prevent liquid leakage and improve the reliability and safety of the cleaning equipment 20. Furthermore, the cooperation between the limiting protrusion 371 and the limiting groove 104 ensures that the locking operation is simple and reliable, optimizing the user's operating experience.

[0327] Reference Figure 9 , Figure 20 and Figure 21 As an optional implementation, a first rotating shaft 317 is provided on the side of the top cover 340 and the housing 310 away from the locking member 370. The first rotating shaft 317 has a through groove 3171 recessed toward the locking member 370. A second rotating shaft 349 is provided on the other side of the top cover 340 and the housing 310 away from the locking member 370. The second rotating shaft 349 is rotatably disposed in the through groove 3171. That is, the first rotating shaft 317 and the second rotating shaft 349 can be used together to allow relative rotation between the top cover 340 and the housing 310.

[0328] For example, the first rotating shaft 317 is disposed on the upper cover 340, and the second rotating shaft 349 is disposed on the housing 310, that is, the upper cover 340 forms a through groove 3171. In another example, the first rotating shaft 317 is disposed on the housing 310, and the second rotating shaft 349 is disposed on the upper cover 340, that is, the housing 310 forms a through groove 3171. The embodiments of this application do not limit the specific installation positions of the first rotating shaft 317 and the second rotating shaft 349, nor are they limited to the above examples.

[0329] Reference Figure 20 When the wastewater tank 300 is in the closed state, the first rotating shaft 317 and the second rotating shaft 349 cooperate to restrict the relative movement of the upper cover 340 and the tank body 310 along the axial extension direction of the first rotating shaft 317. This prevents the wastewater tank 300 from being accidentally opened due to external impact or vibration, ensuring the stability of the connection between the upper cover 340 and the tank body 310. Simultaneously, this tight connection enhances the sealing between the upper cover 340 and the tank body 310, effectively preventing liquid leakage and improving the reliability of the wastewater tank 300 and the cleaning equipment 20.

[0330] Reference Figure 9 and Figure 21When the sewage tank 300 is in the open state, the first rotating shaft 317 and the second rotating shaft 349 cooperate with each other to allow the upper cover 340 to move relative to the tank body 310 along the axial extension direction of the first rotating shaft 317, so as to disconnect the tank body 310 from the upper cover 340, making it convenient for users to repair or replace the upper cover 340, tank body 310, etc. as needed.

[0331] Reference Figure 9 and Figure 21 As an optional implementation, the housing 310 is provided with a first rotating shaft 317, the first rotating shaft 317 having a rotating shaft opening 3172 that connects the through groove 3171 to the external environment, and the rotating shaft opening 3172 is disposed away from the locking member 370.

[0332] The top cover 340 is provided with a second rotating shaft 349, and at least one side of the second rotating shaft 349 is provided with a fixing part 3491. The second rotating shaft 349 is connected to the housing 310 through the fixing part 3491. It is understood that the number of fixing parts 3491 can be one, two, or three, etc. The embodiments of this application do not limit the specific number of fixing parts 3491, nor are they limited to the above examples.

[0333] Reference Figure 20 When the wastewater tank 300 is in the closed state, the top cover 340 is placed on the tank body 310. The fixing part 3491 is located in the through groove 3171 and is positioned away from the pivot opening 3172. The through groove 3171 communicates with the external environment through the pivot opening 3172. The fixing part 3491 is located on one side of the first pivot 317, such as the left or right side of the pivot direction of the first pivot 317. When the top cover 340 is placed on the tank body 310, since the fixing part 3491 and the pivot opening 3172 are located on the front and rear sides of the first pivot 317, the fixing part 3491 can restrict the movement of the first pivot 317, thereby restricting the top cover 340 from moving relative to the tank body 310 along the axial extension direction of the first pivot 317.

[0334] Reference Figure 9 and Figure 21 When the sewage tank 300 is in the open state, the top cover 340 can rotate relative to the tank body 310, allowing the fixing part 3491 to rotate to the pivot opening 3172, so that the fixing part 3491 is located at the pivot opening 3172. At this time, the fixing part 3491 and the pivot opening 3172 are located on the same side of the first pivot 317, and the positions of the fixing part 3491 and the pivot opening 3172 correspond in the rotation direction of the first pivot 317. The first pivot 317 can move through the pivot opening 3172, allowing the top cover 340 to move relative to the tank body 310 along the axial extension direction of the first pivot 317.

[0335] In this embodiment of the application, there are two fixing parts 3491, which are respectively disposed on opposite sides of the second rotating shaft 349.

[0336] Reference Figure 17 As an optional implementation, along the horizontal direction X, the length of the first chamber 313 is L1, the length of the second chamber 314 is L2, and the relationship between L1 and L2 is: 1 / 2≤L1 / L2≤3 / 4.

[0337] On the one hand, if the length L1 of the first chamber 313 is less than half of L2, the space in the first chamber 313 may be insufficient, leading to the accumulation of waste and affecting the solid-liquid separation efficiency. On the other hand, an excessively short first chamber 313 may not be able to effectively settle solid waste, resulting in an increase in the solid waste content and affecting the purity of the liquid entering the second chamber 314.

[0338] On the other hand, if the length L1 of the first chamber 313 is greater than 3 / 4 of L2, the first chamber 313 may occupy too much space, resulting in insufficient space in the second chamber 314 and affecting liquid storage. An excessively long first chamber 313 may also lead to structural imbalance, increasing manufacturing costs and complexity.

[0339] By setting the parameters of the first chamber 313 as described above, it can be ensured that the first chamber 313 has sufficient space for collecting and initially separating contaminants, while ensuring that the second chamber 314 has sufficient space for storing liquid. In addition, the above proportional relationship can optimize the chamber layout within the housing 310, ensuring that both the first chamber 313 and the second chamber 314 meet the requirements.

[0340] As an optional implementation, the volume of the first chamber 313 is greater than or equal to 450 ml to ensure that the first chamber 313 can hold a large amount of solid waste and liquid sludge. A larger first chamber 313 can reduce the frequency of cleaning the wastewater tank 300 by the user, improving ease of use. In addition, the larger volume provides sufficient space for sludge to settle and separate, thereby ensuring that solid waste can settle sufficiently and improving the efficiency of solid-liquid separation.

[0341] Meanwhile, the large volume design ensures that the sewage tank 300 will not be deformed or damaged due to changes in internal pressure during use, which can improve the overall stability and durability of the sewage tank 300.

[0342] Understandably, if the volume of the first chamber 313 is less than 450 ml, the capacity of the tank 310 may be insufficient, requiring the user to frequently clean the wastewater tank 300, thus increasing the user's burden. A smaller volume may also limit the settling space for waste, resulting in insufficient sedimentation of solid waste, an increase in the solid waste content in the liquid, and a decrease in separation efficiency.

[0343] In some embodiments, the rate at which the negative pressure source 210 draws in gas is greater than or equal to 1100 ml / s, and the ratio between the volume of gas drawn in by the negative pressure source 210 per second and the volume of the first chamber 313 is in the range of 2-3.

[0344] Understandably, if the ratio is less than 2, there is a wind-gathering effect, resulting in a higher wind speed in the first chamber 313. Liquids such as water droplets in the first chamber 313 cannot fall in a straight line and are easily carried by the airflow, making water vapor separation impossible. If the ratio is greater than 3, the negative pressure source 210 cannot provide sufficient suction, thus failing to extract heavier contaminants.

[0345] The following describes in detail the cleaning equipment 20 applied to the aforementioned wastewater tank 300.

[0346] As an optional implementation method, refer to Figure 6 The floor brush 100 has a groove 102 for placing the sewage tank 300. The floor brush 100 is equipped with a roller brush 110, which is located in front of the input end of the sewage inlet channel 311 of the sewage tank 300, ensuring that during the cleaning process, dirt can be effectively scraped off from the surface to be cleaned and sent into the sewage inlet channel 311 by the roller brush 110.

[0347] The roller brush 110 is connected to a drive motor 130. It is understood that the drive motor 130 is used to drive the roller brush 110 to rotate. The roller brush 110 typically has a hollow space, and the drive motor 130 can be disposed within this hollow space. Furthermore, the floor brush 100 is connected to the drive motor 130 via a connecting portion to fix the roller brush 110 in place.

[0348] It should be noted that, in the direction of extension of the rotation axis of the roller brush 110, the size of the drive motor 130 is usually smaller than the size of the roller brush 110, that is, the drive motor 130 is located on one side of the roller brush 110.

[0349] When the cleaning equipment 20 is working, the amount of dirt in the sewage tank 300 gradually increases, the amount of solid waste in the first chamber 313 gradually increases, and the amount of sewage liquid in the second chamber 314 gradually increases.

[0350] Understandably, the solid waste in the first chamber 313 typically includes dust, hair, etc. As the cleaning process progresses, the weight of the wastewater in the second chamber 314 will exceed the weight of the solid waste in the first chamber 313.

[0351] In order to evenly distribute the weight of the brush 100 on the horizontal plane, the drive motor 130 and the second chamber 314 of the sewage tank 300 are respectively located near the opposite ends of the roller brush 110, that is, the connecting part is located near the first chamber 313, so that the drive motor 130 and the second chamber 314 can be diagonally distributed, thereby forming a floor brush 100 with even weight distribution, which can improve the stability of the cleaning equipment 20 and facilitate user operation.

[0352] Reference Figure 17 As an optional implementation, along the extension direction of the rotating shaft of the roller brush 110, the length of the second chamber 314 is L2, the length of the roller brush 110 is L3, and the relationship between L2 and L3 is: 1 / 2≤L2 / L3≤2 / 3.

[0353] Understandably, by setting the ratio between the length L2 of the second chamber 314 and the length L3 of the roller brush 110 to between 1 / 2 and 2 / 3, it can be ensured that the second chamber 314 has sufficient space for processing and storing liquid waste. This ratio optimizes the layout of the first chamber 313 and the second chamber 314, enabling the first chamber 313 to effectively receive and process waste transported from the roller brush 110. Simultaneously, this ratio ensures that the second chamber 314 can hold sufficient liquid waste.

[0354] Furthermore, an appropriate length ratio ensures the structural stability of the cleaning device 20. The balanced design between the length of the second chamber 314 and the length of the roller brush 110 prevents the cleaning device 20 from tilting or becoming unstable due to uneven weight distribution.

[0355] It should be noted that if the length L2 of the second chamber 314 is less than half the length L3 of the roller brush 110, the shorter second chamber 314 may not be able to hold enough liquid contaminants, leading to liquid overflow or inadequate treatment. Additionally, the cleaning device 20 may tilt during use due to uneven weight distribution, potentially reducing structural stability and thus affecting cleaning performance.

[0356] If the length L2 of the second chamber 314 is greater than 2 / 3 of the length L3 of the roller brush 110, the excessively long second chamber 314 may occupy too much space, affecting the layout of other components and the compactness of the overall design. In addition, an excessively long second chamber 314 may increase manufacturing complexity and cost, and may also lead to an increase in the overall weight of the equipment, which may increase manufacturing costs, and at the same time affect the miniaturization of the cleaning equipment 20.

[0357] Reference Figure 22As an optional implementation, the cleaning device 20 also includes a filter element 120, which is located inside the floor brush 100 outside the tank 310 of the wastewater tank 300. That is, the filter element 120 and the wastewater tank 300 form a relatively independent structure. This optimizes the use of the internal space of the cleaning device 20, avoids the filter element 120 occupying the waste collection space inside the wastewater tank 300, and facilitates the maintenance and replacement of the filter element 120 without affecting the normal function of the wastewater tank 300.

[0358] The filter element 120 is located downstream of the negative pressure port 312 of the wastewater tank 300. It can intercept and filter residual particulate matter in the airflow, further improving air cleanliness. If the filter element 120 were located upstream of the negative pressure port 312, that is, filtering before the air enters the wastewater tank 300, it might quickly become clogged with a large amount of dirt, leading to a decrease in filtration efficiency and requiring frequent cleaning or replacement. Its downstream location allows the filter element 120 to handle relatively cleaner air, reducing its filtration burden and extending its service life.

[0359] It should be noted that the filter element 120 can also be located upstream of the negative pressure source 210, that is, the airflow can flow through the filter element 120 to the negative pressure source 210, and the filter element 120 can protect the negative pressure source 210.

[0360] Reference Figure 22 As an optional implementation, the drive unit 330 of the sewage tank 300 is located inside the floor brush 100 outside the tank body 310. The drive unit 330 can be connected to the second chamber 314 so that the liquid in the first chamber 313 can enter the second chamber 314 through the first connecting channel 315, thereby completing solid-liquid separation.

[0361] Along the extension direction of the roller brush 110 axis, i.e., along the horizontal direction, the drive component 330 and the filter component 120 are located on opposite sides of the body 200, which can balance the weight distribution of the cleaning equipment 20 and enhance structural stability.

[0362] As an optional implementation, exemplaryly, the filter element 120 may include, but is not limited to, a HEPA filter, which is a high-efficiency particulate air filter (HEPA) with high filtration performance, capable of effectively intercepting fine particulate matter in the air, such as dust, pollen, and bacteria. HEPA filters can significantly improve the filtration efficiency of the cleaning device 20, ensuring cleaner exhaust air, reducing environmental pollution, and enhancing the user experience.

[0363] It should be noted that getting the HEPA filter wet will affect its filtration efficiency. When the user removes the wastewater tank 300 for cleaning, the HEPA filter mounted on the floor brush 100 will not come into contact with water and will not get wet. This ensures the HEPA filter's filtration performance, extends its lifespan, and ultimately improves the user experience.

[0364] Reference Figure 23 In some embodiments, the floor brush 100 is also provided with a mounting cavity 103 for placing a HEPA filter. The opening of the mounting cavity 103 is connected to the negative pressure port 312 of the sewage tank 300, ensuring that airflow can smoothly enter the negative pressure port 312 from the mounting cavity 103. The above arrangement can optimize the airflow path, reduce the airflow resistance in the mounting cavity 103, and thus improve the gas flow efficiency between the negative pressure port 312 and the negative pressure source 210.

[0365] The bottom surface of the mounting cavity 103 is a slope, and the side of the bottom surface near the negative pressure port 312 is lower than the side of the bottom surface away from the negative pressure port 312.

[0366] Understandably, the sloping bottom surface ensures smooth gas flow to the negative pressure port 312, allowing the filter element 120 to filter out impurities and reduce the risk of blockage at the negative pressure port 312. Simultaneously, the sloping surface also enhances the structural strength of the floor brush 100, preventing damage caused by external impacts or internal pressure changes.

[0367] It should be noted that when using the aforementioned mounting cavity 103, if liquid is present within the mounting cavity 103, the inclined surface can achieve good backflow; for example, after the wastewater tank 300 is removed from the floor brush 100, the liquid in the mounting cavity 103 can flow into the floor brush 100 under gravity; another example is that when cleaning the wastewater tank 300, the mounting cavity 103 can backflow any liquid that splashes into it. It should also be noted that the angle between the bottom surface of the mounting cavity 103 and the horizontal direction X can be arbitrary; in this embodiment, the angle b between the bottom surface and the horizontal direction X is not less than 3°.

[0368] Reference Figure 22 As an optional implementation, a steering structure 500 is provided between the body 200 and the floor brush 100. The steering structure 500 allows the body 200 and the floor brush 100 to rotate, thereby improving maneuverability.

[0369] The mounting cavity 103 and the negative pressure source 210 are connected by a pipe 600, which ensures that the airflow can flow smoothly from the mounting cavity 103 to the negative pressure source 210. This can optimize the airflow path, reduce the airflow resistance, and thus improve the working efficiency of the negative pressure source 210.

[0370] Along the extension direction of the axis of the roller brush 110, at least part of the pipe 600 is located within the turning structure 500. This location can reduce the space occupied by the pipe 600 in the cleaning device 20, making the cleaning device 20 more compact.

[0371] Understandably, the steering structure 500 can also enhance the connection strength between the body 200 and the floor brush 100, prevent damage caused by external impact or internal pressure changes, and improve the structural stability of the cleaning equipment 20.

[0372] As an optional implementation, the diameter of the pipe 600 ranges from 21.5mm to 26mm. It is understood that a pipe 600 within this range ensures smooth airflow, optimizes the airflow path, and improves the gas flow efficiency of the cleaning device 20. Furthermore, the pipe 600 with these parameters ensures that the negative pressure source 210 can provide sufficient suction to effectively remove dirt, thereby improving cleaning efficiency.

[0373] Meanwhile, the pipes 600 within the aforementioned range have sufficient structural strength to prevent damage caused by external impacts or internal pressure changes, thereby improving the structural stability of the cleaning equipment 20 and ensuring reliable performance under different conditions.

[0374] It should be noted that if the diameter of pipe 600 is less than 21.5 mm, airflow resistance will increase, leading to increased energy loss and reduced cleaning efficiency. Furthermore, a smaller diameter may easily clog pipe 600 and cleaning equipment 20, potentially causing malfunction of cleaning equipment 20. If the diameter of pipe 600 is greater than 26 mm, the larger diameter pipe 600 may occupy too much space, affecting the layout and compactness of cleaning equipment 20. A larger diameter pipe 600 has thinner walls, affecting its structural strength and increasing the risk of damage.

[0375] As an optional implementation, the ratio between the diameter of the pipe 600 and the diameter of the air intake of the negative pressure source 210 is in the range of 1.0-1.5, that is, the diameter of the pipe 600 is larger than the diameter of the air intake of the negative pressure source 210, in order to compensate for the loss of airflow during the flow process.

[0376] Understandably, if the above ratio is less than 1.0, that is, the diameter of the pipe 600 is small or the air intake is large, there is a certain amount of wind resistance and the noise is relatively large, and the suction power of the negative pressure source 210 is lost; if the above ratio is greater than 1.5, that is, the diameter of the pipe 600 is large or the air intake is small, the wind speed is low, resulting in insufficient suction, and thus the cleaning work cannot be completed.

[0377] As an optional implementation, the cross-sectional area of ​​the suction port of the negative pressure source 210 is smaller than the cross-sectional area of ​​the negative pressure port 312 of the wastewater tank 300. This means the airflow velocity at the negative pressure port 312 is higher than the airflow velocity at the suction port, thus ensuring an increased airflow velocity upon entering the suction port. This configuration increases the airflow velocity, thereby enhancing the suction power of the negative pressure source 210, enabling the effective extraction of waste into the wastewater tank 300 and improving cleaning efficiency.

[0378] Secondly, the above settings can reduce eddies, reduce suction loss, thereby reducing energy consumption and improving the energy utilization efficiency of the cleaning equipment 20.

[0379] As an optional implementation, the cross-sectional area of ​​the air intake of the negative pressure source 210 is 320-380 square millimeters. It is understood that the cross-sectional area of ​​the air intake of the negative pressure source 210 can be any value within the range of 320-380 square millimeters. This application embodiment does not limit this, nor is it limited to the above example.

[0380] As an optional implementation, the cross-sectional area of ​​the sewage inlet channel 311 of the sewage tank 300 is 360-500 square millimeters. It is understood that the cross-sectional area of ​​the sewage inlet channel 311 of the sewage tank 300 can be any value within the range of 360-500 square millimeters. This application embodiment does not limit this, nor is it limited to the above examples.

[0381] As an optional implementation, the cross-sectional area of ​​the negative pressure port 312 of the sewage tank 300 is 360-400 square millimeters. It is understood that the cross-sectional area of ​​the negative pressure port 312 of the sewage tank 300 can be any value within the range of 360-400 square millimeters. This application does not limit this aspect, nor is it limited to the above examples.

[0382] Furthermore, the cross-sectional area of ​​the output side of the sewage inlet channel 311 of the sewage tank 300 is the same as the cross-sectional area of ​​the input side of the sewage inlet channel 311 of the sewage tank 300, and is also the same as the cross-sectional area of ​​the negative pressure port 312 of the sewage tank 300, so as to provide suction evenly.

[0383] It is understandable that Pipe 600 can be used in different applications.

[0384] Reference Figure 24In some embodiments, the conduit 600 includes a rotating pipe 610 and a connecting pipe 620, ensuring that airflow can flow smoothly from the mounting cavity 103 to the rotating pipe 610. The mounting cavity 103 is fixedly connected to and communicates with the rotating pipe 610, and the rotating pipe 610 is connected to the negative pressure source 210 through the connecting pipe 620. The rotating pipe 610 and the connecting pipe 620 are rotatably connected and communicate with each other, which can ensure that the conduit 600 can be flexibly adjusted in position, thereby improving flexibility and avoiding restrictions on the movement of the cleaning equipment 20.

[0385] Furthermore, the rotating pipe 610 can refer to a rotary joint, through which the connecting pipe 620 bends and rotates within a certain range with the mounting cavity 103.

[0386] In some embodiments, the pipe 600 is a flexible pipe, one end of which is connected to the mounting cavity 103 and the other end is connected to the negative pressure source 210. When the body 200 rotates relative to the brush 100, the flexible pipe can bend or twist to a certain extent to adapt to the positional changes between the negative pressure source 210 and the mounting cavity 103.

[0387] In some embodiments, the pipe 600 includes a flexible pipe and a rotating pipe 610, wherein the flexible pipe and the rotating pipe 610 are fixedly connected and communicate with each other or rotatably connected and communicate with each other. As can be seen from the foregoing, the rotating pipe 610 may include a rotary joint, that is, the flexible pipe is connected to a rotary joint, thereby realizing rotation.

[0388] It should be noted that by setting up a flexible pipe connected with a rotary joint, the range of rotation between the body 200 and the floor brush 100 is large, which can adapt to more usage scenarios, such as laying the body 200 flat so that the floor brush 100 can reach under the table, under the bed, etc., to clean such surfaces.

[0389] In some embodiments, the steering structure 500 is formed with a connecting pipe with openings at both ends. One end of the connecting pipe is connected to the mounting cavity 103, and the other end is connected to the negative pressure source 210. The steering structure 500 is rotatably connected to and connected to the mounting cavity 103.

[0390] It is understandable that the steering structure 500 can refer to a universal joint. The steering structure 500 has a connecting pipe inside to transmit gas. In this way, the gas path connection between the negative pressure source 210 and the sewage tank 300 can be achieved without the need to set up an additional pipe 600.

[0391] With the above settings, when the machine body 200 rotates relative to the brush 100, the pipe 600 can maintain the connection between the negative pressure source 210 and the sewage tank 300, thereby ensuring the normal operation of the cleaning equipment 20.

[0392] As an optional implementation, the floor brush 100 has a sewage inlet pipe 140 that connects to the sewage inlet channel 311 of the sewage tank 300. The sewage inlet pipe 140 includes a horizontal section 141 and a vertical section 142 that are connected to each other. The horizontal section 141 is located upstream of the vertical section 142. The sewage inlet end of the sewage inlet pipe 140 is located on the side of the horizontal section 141 away from the vertical section 142. The sewage inlet end is used to connect to the sewage inlet 101 of the floor brush 100.

[0393] With the above configuration, the connection between the horizontal section 141 and the vertical section 142 ensures that waste can smoothly enter the waste inlet pipe 140 from the waste inlet 101 of the floor brush 100 and eventually flow into the wastewater tank 300. The layout of the horizontal section 141 and the vertical section 142 reduces the residence time of waste in the pipe 600 and lowers the risk of blockage.

[0394] The inlet is located on the side of the horizontal section 141 away from the vertical section 142, ensuring that waste can be effectively sucked into the inlet pipe 140. With the above arrangement, the connection between the horizontal section 141 and the vertical section 142 allows waste to enter the wastewater tank 300 after bending, which can prevent waste from flowing back out of the inlet 101.

[0395] It should be noted that, in order to facilitate the installation of the sewage tank 300, the output end of the vertical section 142 can be opened upwards, so that the sewage inlet 101 of the sewage tank 300 can be connected to the top of the vertical section 142 without the need for manual alignment by the user, which is convenient for the user.

[0396] Reference Figure 19 As an optional implementation, the height of the vertical section 142 is h1, and the height of the body 310 of the sewage tank 300 is h2. The relationship between h1 and h2 is: 3 / 7≤h1 / h2≤4 / 7, that is, the height of the body 310 of the sewage tank 300 is similar to the height of the vertical section 142.

[0397] If the ratio between the height h1 of the vertical section 142 and the height h2 of the box 310 is less than 3 / 7, that is, the height of the vertical section 142 is lower and the height of the box 310 is higher, it will be more difficult to connect the sewage inlet pipe 140 to the sewage inlet 101 of the sewage box 310, which may cause leakage and thus affect the cleaning efficiency.

[0398] If the ratio between the height h1 of the vertical section 142 and the height h2 of the box 310 is greater than 4 / 7, that is, the height of the vertical section 142 is higher and the height of the box 310 is lower, the sewage inlet pipe 140 is too high, which will cause a depression between the sewage tank 300 and the floor brush 100. The sewage tank 300 has a small capacity, resulting in low cleaning efficiency of the cleaning equipment 20.

[0399] The above configuration ensures that the vertical section 142 has sufficient height for collecting and guiding waste without excessively occupying the overall space of the wastewater tank 300. An appropriately sized vertical section 142 ensures that waste can smoothly enter the vertical section 142 from the horizontal section 141 and ultimately flow into the wastewater tank 300, thereby improving cleaning efficiency.

[0400] As an optional implementation, the extension length of the horizontal segment 141 is not less than 20 mm. It is understood that the extension length of the horizontal segment 141 can be any value greater than 20 mm. This application does not limit this aspect, nor is it limited to the above example.

[0401] Understandably, by setting a sufficiently long horizontal section 141, it is ensured that dirt can smoothly enter the vertical section 142 from the dirt inlet 101 of the floor brush 100. If the extension length of the horizontal section 141 is less than 20mm, the residence time of dirt in the horizontal section 141 is short, and the impact of dirt on the vertical section 142 is greater. When dirt impacts the vertical section 142, the dirt suction process is affected, which may cause dirt to flow back into the horizontal section 141, causing blockage, and thus affecting the cleaning efficiency of the cleaning equipment 20.

[0402] As an optional implementation, the distance between the top surface of the floor brush 100 and the pivot of the roller brush 110 along the height direction Z is H1, with H1 ranging from 50-60mm. This provides sufficient space between the floor brush 100 and the roller brush 110 for effective dirt collection and treatment, while maintaining the overall compactness of the cleaning device 20. The appropriate distance ensures that the roller brush 110 can effectively scrape dirt into the wastewater tank 300, preventing dirt residue on the surface to be cleaned and improving cleaning efficiency.

[0403] In addition, the above settings can ensure that the cleaning equipment 20 will not collide due to being too close or be insufficiently collected due to being too far away during operation, thereby enhancing the structural stability of the cleaning equipment 20.

[0404] It should be noted that if the distance is less than 50mm, it may result in insufficient space, limiting the collection area for waste and affecting the cleaning effect. In addition, a small distance may cause the wastewater tank 300 and the roller brush 110 to collide during operation, affecting the stability and service life of the equipment.

[0405] If the distance is greater than 60mm, the dirt may not be effectively scraped into the wastewater tank 300, and dirt may remain on the surface to be cleaned, which will affect the cleaning efficiency of the cleaning equipment 20.

[0406] Furthermore, along the height direction Z, the height of the floor brush 100 is H2. The height of the floor brush 100 is the distance between the top and bottom surfaces of the floor brush 100. The relationship between H1 and H2 is: 0.7 ≤ H1 / H2 ≤ 0.8.

[0407] Understandably, when selecting roller brushes 110 of the same size, the smaller the distance between the top surface of the floor brush 100 and the pivot of the roller brush 110, that is, the smaller the thickness of the floor brush 100, the easier it is for the cleaning equipment 20 to clean surfaces under the bed and table, which is conducive to the miniaturization and thinning of the cleaning equipment 20 and the cleaning system 10.

[0408] If the ratio is less than 0.7, the space for the roller brush 110 to rotate is too small, which may result in insufficient space, limiting the collection space for dirt and affecting the cleaning effect. In addition, the small distance may cause the sewage tank 300 and the roller brush 110 to collide during operation, affecting the stability and service life of the equipment.

[0409] If the above ratio is greater than 0.8, the top surface of the floor brush 100 will be too high, which is not conducive to the miniaturization and thinning of the cleaning equipment 20 and the cleaning system 10, and does not meet the user's expectations for miniaturization and thinning.

[0410] Reference Figure 25 As an optional implementation, when the sewage tank 300 is located on the floor brush 100, in the height direction Z, the center line of the sewage tank 300 is located between the rotating shaft of the roller brush 110 and the top surface of the roller brush 110.

[0411] Understandably, when selecting roller brushes 110 of the same size, the center line of the wastewater tank 300 is located between the axis of rotation of the roller brush 110 and the top surface of the roller brush 110. That is, the distance between the top surface of the floor brush 100 and the axis of rotation of the roller brush 110 is small, and the thickness of the floor brush 100 is small. This makes it easier for the cleaning equipment 20 to clean surfaces under the bed and table, which is conducive to the miniaturization and thinning of the cleaning equipment 20 and the cleaning system 10.

[0412] As an optional implementation, the distance between the outer bottom surface of the wastewater tank 300 and the outer bottom surface of the floor brush 100 is no more than 5mm, that is, the bottom wall thickness of the floor brush 100 is no more than 5mm. With this setting, the floor brush 100 can have a larger space to accommodate more waste. If the distance is greater than 5mm, the height of the floor brush 100 will be too large, which is not conducive to achieving miniaturization and thinness of the cleaning equipment 20 and the cleaning system 10, and does not meet the user's expectations for miniaturization and thinness.

[0413] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0414] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A sewage tank, characterized in that, A floor brush (100) is installed on the cleaning equipment (20). The wastewater tank (300) includes a tank body (310) and a solid-liquid separator (320). The tank body (310) has: The sewage inlet channel (311) is used to connect the sewage inlet (101) of the floor brush (100); Negative pressure port (312) is used to connect to the negative pressure source (210) of the cleaning equipment (20); The first chamber (313) is connected to the sewage inlet channel (311) and the negative pressure port (312). The sewage inlet channel (311) is used to transport sewage to the first chamber (313) under the action of the negative pressure source (210). The second chamber (314) is arranged side by side with the first chamber (313), and the second chamber (314) is connected to the first chamber (313); The solid-liquid separator (320) is installed in the first chamber (313). The solid-liquid separator (320) is used to filter solid contaminants transported from the inlet channel (311) to the first chamber (313). Liquid contaminants are transported to the second chamber (314) via the first connecting channel (315).

2. The sewage tank according to claim 1, characterized in that, The housing (310) also has a first communication channel (315), which has an input end and an output end connected to each other. The input end is connected to the downstream of the first chamber (313), and the output end is connected to the upstream of the second chamber (314). The bottom surface of the first chamber (313) is not higher than the input end.

3. The sewage tank according to claim 2, characterized in that, The bottom surface of the first chamber (313) is inclined, and the side closer to the first connecting channel (315) is lower than the side away from the first connecting channel (315); the extension direction of the bottom surface of the first chamber (313) intersects the horizontal direction (X), and the angle of intersection is in the range of 3°-45°.

4. The sewage tank according to claim 2, characterized in that, The first chamber (313) and the second chamber (314) are separated by a first baffle (316); At least a portion of the first baffle (316) and the bottom surface of the first chamber (313) are formed with a drain groove (319), which is connected to the input end of the first connecting channel (315).

5. The sewage tank according to claim 4, characterized in that, The input end of the first communication channel (315) faces the bottom surface of the first chamber (313).

6. The sewage tank according to claim 4, characterized in that, The height of the drain trough (319) ranges from 3 to 8 mm; And / or, the width of the drain trough (319) is in the range of 9-13 mm; And / or, the volume range of the drainage tank (319) is 1500-2000 mm3; And / or, the cross-sectional area of ​​the first connecting channel (315) ranges from 75 to 125 mm2; And / or, the volume range of the first connecting channel (315) is 4500-5500 mm3.

7. The sewage tank according to claim 2, characterized in that, The input end of the first connecting channel (315) is higher than the output end of the first connecting channel (315), so that the liquid waste flows from the input end to the output end under the action of gravity; Alternatively, the input end of the first communication channel (315) is lower than the output end of the first communication channel (315), and at least one of the first chamber (313), the second chamber (314) and the first communication channel (315) is connected to a drive member (330) for driving the liquid contaminant from the first chamber (313) through the first communication channel (315) into the second chamber (314).

8. The sewage tank according to claim 4, characterized in that, It also includes a drive unit (330) connected to the second chamber (314), the drive unit (330) being used to generate a negative pressure in the second chamber (314) so ​​that the liquid in the first chamber (313) enters the second chamber (314) through the first connecting channel (315).

9. The sewage tank according to claim 8, characterized in that, The drive unit (330) is disposed outside the housing (310), and the drive unit (330) is connected to the second chamber (314) through a pipeline; And / or, the rate range of the drive (330) is 80-120 ml / s; And / or, the volume of the drain tank (319) and the volume of the first connecting channel (315) are both smaller than the volume of liquid driven per second by the drive unit (330).

10. The sewage tank according to claim 3, characterized in that, The output end of the first communication channel (315) is formed with a communication port (3151), which faces the second chamber (314) along the horizontal direction (X), and the communication port (3151) is higher than the input end of the first communication channel (315).

11. The sewage tank according to any one of claims 1-10, characterized in that, The sewage inlet channel (311) has an input end and an output end. The input end of the sewage inlet channel (311) is used to connect to the sewage inlet (101) of the floor brush (100). The output end of the sewage inlet channel (311) is located on the side wall (3132) of the first chamber (313). At least part of the sewage inlet channel (311) is buried in the second chamber (314).

12. The sewage tank according to any one of claims 1-10, characterized in that, The negative pressure port (312) is located in the second chamber (314), and the flow area of ​​the sewage inlet channel (311) is the same as the cross-sectional area of ​​the negative pressure port (312).

13. The sewage tank according to any one of claims 1-10, characterized in that, The sewage tank (300) also includes a top cover (340), which is connected to the tank body (310) and covers the first chamber (313) and the second chamber (314); The upper cover (340) has a second communication channel (341) that connects the first chamber (313) to the negative pressure port (312).

14. The sewage tank according to claim 13, characterized in that, The second communication channel (341) includes a first opening (343) and a second opening (344), wherein the first opening (343) and the second opening (344) are respectively connected to the first chamber (313) and the negative pressure port (312); A second baffle (346) is provided in the second connecting channel (341), and the second baffle (346) is used to change the length of the airflow path in the second connecting channel (341).

15. The sewage tank according to claim 14, characterized in that, A grille (345) is provided at the first opening (343); And / or, The upper cover (340) is also provided with a third baffle (347), which is located upstream of the first opening (343) and there is a gap between the third baffle (347) and the first opening (343).

16. The sewage tank according to any one of claims 1-10, characterized in that, The opening of the solid-liquid separator (320) faces upward, and the dimensions of the solid-liquid separator (320) gradually decrease from top to bottom along the height direction (Z); The solid-liquid separator (320) is spaced apart from the wall of the first chamber (313).

17. The sewage tank according to claim 16, characterized in that, The walls of the first chamber (313) include a bottom wall (3131) and a side wall (3132) connecting the bottom wall (3131); The distance between the solid-liquid separator (320) and the bottom wall (3131) of the first chamber (313) is in the range of 3mm-7mm; And / or, the distance between the solid-liquid separator (320) and the sidewall (3132) of the first chamber (313) is in the range of 0.5mm-2mm; And / or, when at least the first baffle (316) and the bottom surface of the first chamber (313) form a drain groove (319), in the height direction (Z), the distance between the bottom walls (3131) of the first chamber (313) is greater than or equal to the height of the drain groove (319).

18. The sewage tank according to claim 16, characterized in that, The solid-liquid separation component (320) includes a filter section (321) and a surrounding section (322). The filter section (321) has filter holes and is close to the bottom wall (3131) of the first chamber (313). The surrounding section (322) surrounds the periphery of the filter section (321). The enclosure (322) has a through hole (323); and / or, the enclosure (322) is provided with a rib (324), the rib (324) is located on the opposite side of the sewage inlet channel (311), and the rib (324) extends toward the sewage inlet channel (311).

19. The sewage tank according to claim 13, characterized in that, It also includes a guide (360) located on the periphery of the output end of the sewage inlet channel (311), and the guide (360) extends in a direction away from the second chamber (314); The guide (360) is connected to one of the housing (310), the top cover (340), and the solid-liquid separator (320).

20. The sewage tank according to claim 19, characterized in that, The guide (360) and the solid-liquid separation component (320) are integrated.

21. The sewage tank according to claim 20, characterized in that, When the upper cover (340) is closed and connected to the housing (310), The guide (360) abuts against the upper cover (340); And / or, the upper cover (340) is further provided with a third baffle (347) that abuts against the guide (360); the third baffle (347) is not located downstream of the sewage inlet channel (311) along the orientation of the output end of the sewage inlet channel (311).

22. The sewage tank according to claim 21, characterized in that, When the upper cover (340) is also provided with a third baffle (347), The third baffle (347) is located upstream of the second communication channel (341) of the upper cover (340) and abuts against the side of the first chamber (313) and the guide (360); And / or, the height of the third baffle (347) is greater than or equal to the height of the first opening (343); And / or, in the height direction (Z), the distance between the side of the third baffle (347) away from the upper cover (340) and the bottom surface of the solid-liquid separator (320) is greater than or equal to the height of the first opening (343); And / or, the height of the third baffle (347) is in the range of 10-30mm.

23. The sewage tank according to claim 13, characterized in that, The top cover (340) is provided with a concealed handle (350); And / or, one of the top cover (340) or the housing (310) is provided with a locking element (370) for locking the top cover (340) and the housing (310).

24. The sewage tank according to claim 23, characterized in that, The handle (350) is connected at both ends to the side of the top cover (340) away from the box body (310), and at least the middle part of the handle (350) is elastic so that the handle (350) can fit the top cover (340). Alternatively, the top cover (340) may have a receiving groove (348) on the side opposite to the box body (310), the handle (350) may be located in the receiving groove (348), and one end of the handle (350) may be connected to the top cover (340) by a torsion spring.

25. The sewage tank according to claim 23, characterized in that, A first pivot (317) is provided on the side of the top cover (340) and the housing (310) away from the locking member (370), and the first pivot (317) has a through groove (3171) recessed toward the locking member (370); a second pivot (349) is provided on the side of the other of the top cover (340) and the housing (310) away from the locking member (370), and the second pivot (349) is rotatably disposed in the through groove (3171); When the sewage tank (300) is in a closed state, the first rotating shaft (317) and the second rotating shaft (349) cooperate with each other to restrict the upper cover (340) from moving relative to the tank body (310) along the axial extension direction of the first rotating shaft (317); When the sewage tank (300) is in the open state, the first rotating shaft (317) and the second rotating shaft (349) cooperate with each other to allow the top cover (340) to move relative to the tank body (310) along the axial extension direction of the first rotating shaft (317).

26. The sewage tank according to claim 25, characterized in that, The housing (310) is provided with the first rotating shaft (317), the first rotating shaft (317) has a rotating shaft opening (3172) that connects the through groove (3171) with the external environment, and the rotating shaft opening (3172) is disposed away from the locking member (370); The upper cover (340) is provided with a second rotating shaft (349), and a fixing part (3491) is provided on at least one side of the second rotating shaft (349). The second rotating shaft (349) is connected to the box body (310) through the fixing part (3491). When the sewage tank (300) is in the closed state, the fixing part (3491) is located in the through groove (3171) and is disposed away from the shaft opening (3172). The fixing part (3491) is located on one side of the first shaft (317) to restrict the upper cover (340) from moving relative to the tank body (310) along the axial extension direction of the first shaft (317). When the sewage tank (300) is in the open state, the fixing part (3491) can be rotated to the pivot opening (3172) so that the fixing part (3491) is located at the pivot opening (3172) to allow the top cover (340) to move relative to the tank body (310) along the axial extension direction of the first pivot (317).

27. The sewage tank according to claim 23, characterized in that, The locking member (370) is rotatably connected to the housing (310), and a limit protrusion (371) is provided on the side of the locking member (370) away from the housing (310); The limiting protrusion (371) is configured to abut against the limiting groove (104) of the tank body (310) when the locking member (370) is in the locked state and the sewage tank (300) is located on the floor brush (100), so that the locking member (370) cannot rotate.

28. The sewage tank according to claim 7, characterized in that, The volume of the first chamber (313) is greater than or equal to 450 ml; the rate at which the negative pressure source (210) draws in gas is greater than or equal to 1100 ml / s; the ratio between the volume of gas drawn by the negative pressure source (210) per second and the volume of the first chamber (313) is in the range of 2-3. And / or, the minimum volume of liquid submerging the input end of the first communication channel (315) ranges from 40 to 60 ml, and the speed range of the drive (330) ranges from 80 to 120 ml / s; And / or, along the horizontal direction (X), the length of the first chamber (313) is L1, the length of the second chamber (314) is L2, and the relationship between L1 and L2 is: 1 / 2≤L2 / L1≤3 / 4; And / or, the distance between the top surface of the floor brush (100) and the pivot of the roller brush (110) of the floor brush (100) is H1, the height of the floor brush (100) is H2, and the relationship between H1 and H2 is: 0.7≤H1 / H2≤0.8; And / or, when the wastewater tank (300) is located on the floor brush (100), in the height direction (Z), the centerline of the wastewater tank (300) is located between the axis of rotation of the roller brush (110) of the floor brush (100) and the top surface of the roller brush (110).

29. A cleaning device comprising a floor brush (100), a body (200), and a wastewater tank (300) as claimed in any one of claims 1-28, wherein the wastewater tank (300) is disposed on the floor brush (100), and a negative pressure source (210) is disposed inside the body (200), the negative pressure source (210) being located at the lower part of the body (200).

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