A water tank assembly and cleaning apparatus

Abstract

This application provides a water tank assembly and a cleaning device. The water tank assembly includes: a clean water tank assembly, comprising a clean water tank for holding clean water, and a clean water outlet assembly for discharging the clean water from the clean water tank; and a wastewater tank assembly disposed within the clean water tank, the volume of which can change with the amount of clean water in the clean water tank. By placing the wastewater tank assembly within the clean water tank assembly, and allowing its volume to vary with the amount of clean water in the clean water tank assembly, the space of the water tank is utilized as much as possible, reducing the space occupied by the cleaning device in the water tank design, thereby reducing the size of the cleaning device and enabling better miniaturization. Furthermore, the wastewater tank assembly and the clean water tank assembly can be simultaneously accessed and removed in a single operation, improving the user experience.

Description

Technical Field

[0001] This application relates to the field of water tank structure technology, and in particular to a water tank component and cleaning equipment. Background Technology

[0002] The water tanks in existing cleaning equipment have the following problems:

[0003] 1. The clean water tank and the waste water tank are placed front to back or top to bottom on the main unit, which means that users need to use different water tanks to fill clean water and empty waste water separately.

[0004] 2. The clean water tank and the waste water tank are placed separately. The clean water in the clean water tank is used until it is used up, and this space is always in a useless state, which affects the product volume.

[0005] Chinese invention patent CN113679314B discloses a water tank structure and a cleaning robot, including a water tank and a partition. The partition is slidably disposed within the water tank, dividing it into a clean water chamber and a wastewater chamber, which are distributed vertically. The partition can move according to changes in the water volume in the clean water chamber. The clean water tank is located above the wastewater tank, and the clean water outlet in the clean water tank is located on the partition. The movement of the partition is achieved by the combined action of gravity of the water in the clean water tank and an elastic element. Additionally, Chinese utility model patent CN216933066U discloses a water tank and a cleaning robot, including a first tank and a second tank, with the second tank housed within the first tank. The second tank includes a rigid component and a telescopic portion with elasticity in a predetermined direction, allowing the second tank to expand and contract to change its accommodating space. However, its second tank uses a rigid structural component and a telescopic portion for connection, resulting in a relatively complex structure that is difficult to implement. The telescopic portion is prone to detaching from the rigid structural component or aging, affecting its usability. Summary of the Invention

[0006] The purpose of this application is to provide a water tank assembly and cleaning equipment to solve the problems of large size and inconvenience of use caused by the separate setting of the clean water tank and the wastewater tank in the prior art.

[0007] The embodiments of this application adopt the following technical solution: a water tank assembly, applied to cleaning equipment, the water tank assembly comprising:

[0008] A clean water tank assembly, comprising a clean water tank for holding clean water, and a clean water outlet assembly for discharging clean water from the clean water tank;

[0009] A wastewater tank assembly is installed inside the clean water tank, and the volume of the wastewater tank assembly can change with the amount of clean water in the clean water tank.

[0010] By placing the wastewater tank assembly within the clean water tank assembly, and allowing the volume of the wastewater tank assembly to vary depending on the amount of clean water in the clean water tank assembly, the space of the water tanks is utilized to the maximum extent. This minimizes the space occupied by the cleaning equipment in its tank design, thereby reducing the overall size of the cleaning equipment and enabling better miniaturization. Furthermore, both the wastewater tank assembly and the clean water tank assembly can be accessed and removed simultaneously in a single operation, improving the user experience.

[0011] In some embodiments, the wastewater tank assembly includes a movable liner and a fixed liner;

[0012] The fixed inner liner is a cylindrical body with openings at both ends, and the fixed inner liner is detachably installed in the clean water tank;

[0013] The movable inner liner is a cylindrical body with an opening at the top and a seal at the bottom; the top of the movable inner liner is movably fitted onto the fixed inner liner along the axial direction of the fixed inner liner, and the fixed inner liner and the movable inner liner are combined to form a sewage space for holding sewage, and the volume of the sewage tank assembly is the volume of the sewage space.

[0014] The wastewater tank assembly is designed with interlocking movable and fixed liners. When the amount of clean water in the clean water tank decreases, wastewater enters the wastewater space. The movable liner descends under the combined action of the gravity of the wastewater and the pressure inside the clean water tank, thereby increasing the wastewater space. The structure is simple and easy to implement.

[0015] In some embodiments, the tank assembly further includes a HEPA filter assembly and a wastewater return pipe;

[0016] The top of the fixed liner has two openings. The HEPA assembly is detachably mounted on the top of the clear water tank. The HEPA assembly includes a HEPA body, which covers one of the openings of the fixed liner.

[0017] The bottom end of the sewage return pipe is the sewage inlet, and the other end of the sewage return pipe is connected to another opening at the top of the fixed lining, for discharging sewage into the sewage space.

[0018] The two openings of the fixed liner are used to connect with the HEPA module and the wastewater return pipe, respectively. On the one hand, wastewater can be recycled into the wastewater tank module through the wastewater return pipe, and on the other hand, the HEPA module and one of the openings can provide wind support for wastewater recycling to the tank module.

[0019] In some embodiments, a partition is provided inside the fixed liner, the partition being located between two openings at the top of the fixed liner to separate the two openings.

[0020] The airflow will flow around the partition, passing through the lower half of the sewage tank assembly and then upwards. The suction force carries the sewage through the sewage return pipe to the inner lining assembly. Because the suction force is dispersed in the tank assembly, the sewage flows more effectively to the bottom of the movable inner lining due to its own gravity.

[0021] In some embodiments, the wastewater return pipe includes a straight section and a bend section;

[0022] The straight pipe section is installed on the clean water tank assembly and located outside the clean water tank assembly, and the lower end of the straight pipe section forms the bottom end of the sewage return pipe;

[0023] One end of the bend is inserted into one end of the straight pipe section, and a sealing element is provided at the insertion point of the bend and the straight pipe section. The other end of the bend extends into the sewage space through another opening at the top of the fixed liner.

[0024] Designing the wastewater return pipe as a two-section structure facilitates the inspection and cleaning of the bend section and makes better use of the space in the water tank assembly.

[0025] In some embodiments, the movable inner liner is placed on the outer wall of the fixed inner liner, and the outer wall of the movable inner liner is in contact with the inner wall of the clean water tank;

[0026] When the clean water in the clean water tank is discharged from the clean water outlet assembly, the sewage return pipe discharges sewage into the sewage space, and the movable liner moves downward under the gravity of the sewage and its own weight.

[0027] The outer wall of the movable liner is attached to the inner wall of the clean water tank. There is a vacuum between the clean water tank and the liner assembly. When the amount of clean water in the clean water tank decreases, the movable liner will be sucked downward accordingly. Correspondingly, the recycled wastewater will be retained in the wastewater space, and the movable liner will also move downward due to the increased weight of the wastewater inside.

[0028] In some embodiments, the bottom of the fixed liner is provided with an annular sealing scraper for scraping the inner wall of the movable liner;

[0029] One end of the sealing scraper is fixed to the bottom of the fixed liner, and the other end of the sealing scraper abuts against the inner wall of the movable liner.

[0030] The sealing scraper is installed between the inner walls of the fixed liner and the movable liner to provide a seal and scrape away stains, thereby preventing the accumulation of stains on the inner wall of the movable liner.

[0031] This application also discloses a cleaning device including a water tank assembly as described in any of the above embodiments. The use of this water tank assembly in the cleaning device allows the water tank assembly to occupy less space, making the cleaning device more compact and lightweight.

[0032] In some embodiments, the cleaning device further includes a handle assembly, a body assembly, a suction motor assembly, and a floor brush assembly disposed on the body assembly;

[0033] The body assembly includes a fixed shell and a water outlet pipe assembly that cooperates with the clean water outlet assembly of the water tank assembly; the handle assembly is disposed on the body assembly, the water tank assembly is fixed on the body assembly, and when the water tank assembly is fixed on the body assembly, the water outlet pipe assembly opens the clean water outlet assembly;

[0034] The suction motor assembly is disposed on the body assembly. The air intake of the suction motor assembly is connected to the HEPA assembly disposed on the top of the wastewater tank assembly. The connection between the air intake and the HEPA assembly is directly opposite one of the openings of the fixed inner liner. When the suction motor assembly is turned on, it provides suction to the cleaning equipment.

[0035] Connect the air intake of the suction motor assembly to the HEPA assembly located on top of the wastewater tank assembly, with the air intake facing one of the openings of the fixed liner. This ensures that when the suction motor assembly is turned on, it can provide sufficient airflow to the cleaning equipment, thereby improving the cleaning effect.

[0036] In some embodiments, the handle assembly is further provided with a button control module, which is provided with a power switch button, a gear adjustment button for adjusting the gear of the motor assembly, and a mode button for switching the working mode of the cleaning equipment.

[0037] The cleaning equipment also includes a base assembly for cleaning the floor brush assembly and for charging the cleaning equipment.

[0038] The control module allows adjustment of the cleaning equipment's on / off status, cleaning intensity, and operating mode. The base assembly allows for cleaning of the floor brush assembly and charging of the cleaning equipment.

[0039] The beneficial effects of the embodiments of this application are as follows:

[0040] By placing the wastewater tank assembly within the clean water tank assembly, and allowing the volume of the wastewater tank assembly to vary depending on the amount of clean water in the clean water tank assembly, the space of the water tanks is utilized to the maximum extent. This minimizes the space occupied by the cleaning equipment in its tank design, thereby reducing the overall size of the cleaning equipment and enabling better miniaturization. Furthermore, both the wastewater tank assembly and the clean water tank assembly can be accessed and removed simultaneously in a single operation, improving the user experience. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments or related technologies of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the water tank assembly of this application;

[0043] Figure 2 This is an exploded structural diagram of the water tank assembly of this application;

[0044] Figure 3 This is a schematic diagram of the cross-sectional structure of the water tank assembly of this application;

[0045] Figure 4 This is another cross-sectional structural diagram of the water tank assembly of this application;

[0046] Figure 5 This is a schematic diagram of the cleaning equipment used in this application;

[0047] Figure 6 This is a schematic diagram of the exploded structure of the cleaning equipment in this application;

[0048] Figure 7 This is a schematic diagram of the cross-sectional structure of the cleaning equipment in this application.

[0049] Reference numerals: 1. Clean water tank assembly; 2. Wastewater tank assembly; 21. Movable liner; 22. Fixed liner; 23. Handle; 24. Wastewater space; 25. Partition; 26. Sealing scraper; 3. Clean water outlet assembly; 4. HEPA filter assembly; 41. HEPA filter body; 42. HEPA filter shell; 5. Wastewater return pipe; 51. Straight pipe section; 511. Connecting part; 52. Bend section; 6. Handle assembly; 7. Body assembly; 8. Suction motor assembly; 9. Floor brush assembly; 91. Roller brush assembly; 92. Hose; 93. Clean water pump assembly; 10. Rechargeable battery assembly; 11. Display screen assembly; 12. Button control module; 13. Base assembly. Detailed Implementation

[0050] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0051] It should be understood that various modifications can be made to the embodiments described herein. Therefore, the above description should not be considered as limiting, but merely as an example of embodiments. Other modifications within the scope and spirit of this application will be apparent to those skilled in the art.

[0052] The accompanying drawings, which are included in and form part of this specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0053] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0054] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features of the above "Summary of the Invention" and are therefore all within the scope of protection defined herein.

[0055] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0056] Specific embodiments of this application are described below with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that could obscure the application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the foregoing "Summary of the Invention" to teach those skilled in the art to use this application in a variety of substantially any suitable detailed structures.

[0057] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0058] To address the problems in the background art, the present invention provides a water tank assembly that is applied to cleaning equipment.

[0059] The water tank assembly includes a clean water tank assembly 1 and a wastewater tank assembly 2.

[0060] Among them, the clean water tank assembly 1 includes a clean water tank for holding clean water. The clean water tank is a tank with a certain volume, and the volume of the clean water tank can be set according to the needs of the cleaning equipment.

[0061] A clean water outlet assembly 3 is provided on the clean water tank for discharging clean water from the tank.

[0062] The clean water outlet component 3 can be set at the bottom of the clean water tank. Specifically, an opening is set at the bottom of the clean water tank, and the clean water outlet component 3 is installed at the opening.

[0063] For cleaning equipment, the clean water outlet component 3 can be a conventional structure. When the clean water tank component 1 is installed on the body of the cleaning equipment, the clean water outlet component 3 is opened and is normally open. When the water tank component is removed from the body of the cleaning equipment, the clean water outlet component 3 is closed and is normally closed.

[0064] Wastewater tank assembly 2 is installed inside the clean water tank, meaning the volume of the clean water tank is sufficient to hold a certain amount of clean water while also accommodating wastewater tank assembly 2. Furthermore, the volume of wastewater tank assembly 2 can change according to the amount of clean water in the clean water tank.

[0065] For example, when clean water is added to the clean water tank, as the amount of clean water in the tank increases, the clean water in the tank will exert an upward force on the sewage tank assembly 2. Under the force of the clean water in the tank, the volume of the sewage tank assembly 2 decreases. When the clean water in the tank is discharged through the clean water outlet assembly 3, that is, when the amount of clean water in the tank decreases, sewage is also being injected into the sewage tank assembly 2 at the same time, that is, the amount of sewage in the sewage tank assembly 2 is also increasing at the same time. The sewage tank assembly 2 will deform downward under its own weight and the gravity of the sewage inside, and the volume of the sewage tank assembly 2 will increase.

[0066] Both the clean water tank assembly 1 and the wastewater tank assembly 2 can be made of rust-resistant materials, such as hard plastic or metal with an anti-rust coating, and these materials are not prone to aging.

[0067] Wastewater tank assembly 2 is placed inside clean water tank assembly 1, and the volume of wastewater tank assembly 2 can vary with the amount of clean water in clean water tank assembly 1. This maximizes the use of space in the tank assembly, reducing the space occupied by the cleaning equipment and thus its overall size, allowing for better miniaturization. Furthermore, both wastewater tank assembly 2 and clean water tank assembly 1 can be accessed and removed simultaneously in a single operation, improving the user experience.

[0068] In some embodiments, the wastewater tank assembly 2 includes a movable liner 21 and a fixed liner 22.

[0069] The fixed inner liner 22 is a cylindrical body with openings at both ends, and it is detachably installed in the clean water tank. For example, the fixed inner liner 22 can be detachably snapped into the clean water tank. Specifically, snap-fit ​​protrusions and snap-fit ​​grooves can be provided at corresponding positions on the top of the fixed inner liner 22 and the top of the inner wall of the clean water tank, respectively, so that the two can be detachably connected by the cooperation of the snap-fit ​​protrusions and snap-fit ​​grooves.

[0070] In addition, to facilitate the removal and placement of the fixed liner 22 from the clean water tank, a handle 23 can be provided on the fixed liner 22. The handle 23 can be located at the top of the fixed liner 22. When removing or placing the wastewater tank assembly 2, the wastewater tank assembly 2 can be placed into the clean water tank or removed from the clean water tank by holding the handle 23.

[0071] The movable inner liner 21 is a cylindrical body with an opening at the top and a sealed bottom. The top of the movable inner liner 21 is movably fitted onto the fixed inner liner 22 along its axial direction. That is, the movable inner liner 21 is fitted onto the fixed inner liner 22, and the two together form a variable-volume sewage tank assembly 2. The volume of the sewage tank assembly 2 changes through the sliding of the movable inner liner 21 along the axial direction of the fixed inner liner 22. The fixed inner liner 22 and the movable inner liner 21 combine to form a sewage space 24 for holding sewage. The volume of the sewage tank assembly 2 is the volume of this sewage space 24, meaning the sewage space 24 is variable.

[0072] A limiting platform protruding from the outer wall can be provided at the bottom of the outer wall of the fixed inner liner 22 to limit the movable inner liner 21. The fixed inner liner 22 can be formed by molding the corresponding structure and then assembling the corresponding structure to form the fixed inner liner 22. For example, the upper and lower halves of the fixed inner liner 22 can be demolded separately and then sealed and fixed by adhesive. When installing the movable inner liner, the movable inner liner 21 can be installed on the lower half of the fixed inner liner 22 first, and then the upper and lower halves of the fixed inner liner 22 can be assembled to limit the movable inner liner 21 to the fixed inner liner 22.

[0073] When the active liner 21 moves to the bottom of the clean water tank, the cleaning equipment will indicate that the clean water tank is low on water and stop working.

[0074] The wastewater tank assembly 2 is designed with a nested movable liner 21 and a fixed liner 22. When the amount of clean water in the clean water tank decreases, wastewater enters the wastewater space 24. Under the combined action of the gravity of the wastewater and the pressure inside the clean water tank, the movable liner 21 descends, thereby increasing the volume of the wastewater tank assembly 2, which in turn increases the size of the wastewater space 24. Structurally, this tank assembly is simple and easy to implement. The fit between the movable liner 21 and the fixed liner 22 is more secure, eliminating the problem of the movable liner 21 detaching from the fixed liner 22 or aging.

[0075] The sewage tank assembly 2 can be configured with a telescopic tank structure to change its volume.

[0076] In some embodiments, the water tank assembly further includes a HEPA component 4 and a wastewater return pipe 5.

[0077] The fixed inner liner 22 has two openings at its top, which are respectively adapted to the HEPA filter assembly 4 and the wastewater return pipe 5. Specifically, the HEPA filter assembly 4 is detachably mounted on top of the clean water tank, which is also above the wastewater tank assembly 2. The HEPA filter assembly 4 includes a HEPA filter body 41, which covers one of the openings at the top of the fixed inner liner 22 and is used for filtration. Specifically, the HEPA filter assembly 4 also includes a HEPA filter shell 42, which has a space for installing the HEPA filter body 41. This space is directly opposite to and communicates with one of the openings at the top of the fixed inner liner 22, and the HEPA filter body 41 is fixed within this space of the HEPA filter shell 42. The top of the HEPA filter shell 42 also has an opening communicating with this space, allowing airflow through the opening at the top of the fixed inner liner 22, the HEPA filter body 41, and this opening.

[0078] The bottom end of the sewage return pipe 5 is the sewage inlet, and the other end of the sewage return pipe 5 is connected to another opening at the top of the fixed liner 22. Sewage enters the sewage return pipe 5 from the sewage inlet and is then discharged into the sewage space 24 through the top of the sewage return pipe 5. The power source for the sewage to enter the sewage space 24 after entering the sewage return pipe 5 from the sewage inlet can be the suction motor assembly 8 of the cleaning equipment.

[0079] The two openings of the fixed liner 22 are used to connect with the HEPA module 4 and the sewage return pipe 5 respectively. On the one hand, sewage can be recycled into the sewage tank module 2 through the sewage return pipe 5. On the other hand, the HEPA module 4 and one of the openings can provide wind support for sewage recycling to the tank module.

[0080] In some embodiments, a partition 25 is provided inside the fixed liner 22, and the partition 25 is located between two openings at the top of the fixed liner 22 to separate the two openings.

[0081] Specifically, one end of the partition 25 can be located at the top of the fixed liner 22, and the other end extends into the interior of the fixed liner 22. The partition 25 can extend to the middle or lower part of the fixed liner 22, and the sidewall of the partition 25 is tightly attached to the inner wall of the fixed liner 22 to separate the two openings. The airflow will pass around the partition 25 through the lower half of the sewage tank assembly 2 and then be discharged upwards, preventing the sewage from being sucked into the HEPA assembly 4 as soon as it enters the fixed liner 22 due to the airflow. When the suction carries the sewage through the sewage return pipe 5 to the liner assembly, the suction is dispersed in the tank assembly, allowing the sewage to flow better to the bottom of the movable liner 21 due to its own gravity.

[0082] In some embodiments, the wastewater return pipe 5 includes a straight section 51 and a bend section 52.

[0083] The straight pipe section 51 is installed on the clean water tank assembly 1 and located outside the clean water tank assembly 1. Specifically, the straight pipe section 51 is not located in the part of the clean water tank that contains clean water, but is located outside the clean water tank. The lower end of the straight pipe section 51 forms the bottom end of the sewage return pipe 5, and the top end of the straight pipe section 51 is connected to one end of the bend. The straight pipe section 51 can be installed close to the outer wall of the clean water tank, or a space can be formed on the outer wall of the clean water tank for the straight pipe section 51 to pass through from bottom to top.

[0084] The top of the straight pipe section 51 may extend beyond the top of the clean water tank, forming a connecting part 511 with a protrusion on the outer wall. The connecting part 511 is used to connect with the bent pipe section 52. In addition, the connecting part 511 may be equipped with a sealing element for sealing connection with the bent pipe section 52.

[0085] One end (bottom) of the bend section 52 is inserted into one end (top) of the straight section 51. As mentioned earlier, a sealing element, such as a rubber sealing ring, is provided at the insertion point to prevent sewage leakage. The other end of the bend section 52 extends into the sewage space 24 through another opening at the top of the fixed liner 22. Sewage enters the straight section 51 from its bottom end, then enters the bend section 52 from its bottom end, and is then discharged into the sewage space 24 through the other end of the bend section 52, thus completing the sewage recycling process.

[0086] Additionally, an installation space can be provided on the HEPA assembly 4 for installing the bend section 52. The bend section 52 can be fixed in this installation space by clamping or other fixing methods, or it can simply be placed in the installation space without being connected to it. If the bend section 52 is clamped in the installation space, it can be removed along with the HEPA assembly when the HEPA assembly 4 is removed from the fixed liner 22. If the bend section 52 is not connected to the installation space, it will remain connected to the straight section 51 when the HEPA assembly 4 is removed from the fixed liner 22.

[0087] Designing the wastewater return pipe 5 as a two-section structure facilitates the inspection and cleaning of the bend section 52 and makes better use of the space in the water tank assembly. In addition, the bend can be a U-shaped pipe with a circular cross-section to ensure that wastewater is smoothly discharged into the wastewater space 24, while minimizing the accumulation of dirt in the wastewater return pipe 5.

[0088] In some embodiments, the movable inner liner 21 is fitted onto the outer wall of the fixed inner liner 22, and the outer wall of the movable inner liner 21 is in contact with the inner wall of the clean water tank. The inner wall of the clean water tank and the outer wall of the movable inner liner 21 are in a sealed vacuum state. As the clean water in the clean water tank is continuously discharged, the sewage in the sewage tank assembly 2 will increase synchronously, generating gravity, and the movable inner liner 21 will slide as the amount of clean water decreases.

[0089] When the clean water in the clean water tank is discharged from the clean water outlet component 3, the sewage return pipe 5 discharges the sewage into the sewage space 24. The movable liner 21 moves downward under the gravity of the sewage and its own weight to increase the size of the sewage space 24, that is, to increase the volume of the sewage tank.

[0090] The outer wall of the movable liner 21 is attached to the inner wall of the clean water tank. There is a vacuum between the clean water tank and the liner assembly. When the amount of clean water in the clean water tank decreases, the movable liner 21 will be sucked downward accordingly. Correspondingly, the recycled wastewater will be retained in the wastewater space 24, and the movable liner 21 will also move downward due to the increased weight of the wastewater inside.

[0091] In some embodiments, the bottom of the fixed liner 22 is provided with an annular sealing scraper 26 for scraping the inner wall of the movable liner 21. The sealing scraper 26 may be made of, but is not limited to, rubber.

[0092] One end of the sealing scraper 26 is fixed to the bottom of the fixed inner liner 22, and the other end of the sealing scraper 26 abuts against the inner wall of the movable inner liner 21. That is, the sealing scraper 26 is in the shape of a downward-opening trumpet. When the movable inner liner 21 slides relative to the fixed inner liner 22, the sealing scraper 26 scrapes the inner wall of the movable inner liner 21 to clean the inner wall of the movable inner liner 21.

[0093] The sealing scraper 26 is disposed between the inner walls of the fixed inner liner 22 and the movable inner liner 21, and serves to seal and scrape away stains to prevent the accumulation of stains on the inner wall of the movable inner liner 21.

[0094] This application also discloses a cleaning device including a water tank assembly as described in any of the above embodiments. The use of this water tank assembly in the cleaning device allows the water tank assembly to occupy less space, making the cleaning device more compact and lightweight. The cleaning device can be a robotic vacuum cleaner or a handheld washer-mop combo.

[0095] In some embodiments, the cleaning device is a handheld washer-mop combo. The cleaning device also includes a handle assembly 6, a body assembly 7, a suction motor assembly 8, and a floor brush assembly 9 disposed on the body assembly 7.

[0096] The body assembly 7 includes a fixed housing and a water outlet pipe assembly that mates with the clean water outlet assembly 3 of the water tank assembly. The handle assembly 6 is mounted on the body assembly 7. With the water tank assembly secured to the body assembly 7, the water outlet pipe assembly opens the clean water outlet assembly 3. A leak-proof seal is provided between the clean water outlet assembly 3 in the clean water tank assembly and the body assembly 7.

[0097] The suction motor assembly 8 is located on the body assembly 7. The air intake of the suction motor assembly 8 is connected to the HEPA assembly 4 located on the top of the wastewater tank assembly 2. The connection between the air intake and the HEPA assembly 4 is directly opposite one of the openings of the fixed inner liner 22. When the suction motor assembly 8 is turned on, it provides suction for the cleaning equipment.

[0098] The floor brush assembly 9 includes a housing and a roller brush assembly 91, a roller brush assembly 91 motor, a hose 92, and a clean water pump assembly 93 mounted on the housing. The clean water pump assembly 93 is connected to the clean water outlet assembly 3 of the water tank assembly to drain clean water from the water tank to the roller brush assembly 91. One end of the hose 92 is an air inlet located diagonally below the roller brush assembly 91, and the other end is an air outlet connected to the bottom of the wastewater return pipe 5 to drain wastewater to the wastewater return pipe 5. The roller brush assembly 91 motor is connected to the roller brush in the roller brush assembly 91 to drive the roller brush to rotate and clean the ground and other areas.

[0099] The roller brush assembly 91 is driven by a motor to make contact with the surface of the object and generate friction. At the same time, the clean water pump assembly 93 sends clean water to the roller brush to clean the surface of the object or the ground.

[0100] The roller brush assembly 91 also includes a roller brush scraper, which interferes with the roller brush to scrape off the wastewater generated by the friction between the clean water in the roller brush assembly 91 and the surface of an object or the ground, making it easier to recycle the wastewater.

[0101] The suction port of the suction motor assembly 8 is connected to the HEPA assembly 4 set on the top of the wastewater tank assembly 2, and the suction port is directly opposite one of the openings of the fixed liner 22, so that when the suction motor assembly 8 is turned on, it can provide sufficient airflow to the cleaning equipment and improve the cleaning effect of the cleaning equipment.

[0102] In some embodiments, the handle assembly 6 is further provided with a button control module 12, which includes a power switch, a gear adjustment button for adjusting the motor assembly gear, and a mode button for switching the working mode of the cleaning device. The working mode includes a self-cleaning mode.

[0103] The cleaning equipment also includes a rechargeable battery assembly 10 and a display screen assembly 11. The rechargeable battery assembly 10 and the display screen assembly 11 can be mounted on the body assembly 7; specifically, the rechargeable battery assembly 10 can be housed within the body assembly 7, and the display screen assembly 11 can be mounted on the outer surface of the body assembly 7. The rechargeable battery assembly 10 can provide power to the display screen assembly 11, the suction motor assembly 8, the motor of the roller brush assembly 91, the clean water pump, etc., through cyclic charging. The display screen assembly 11 can display the equipment's operating status and provide feedback on the cleaning equipment.

[0104] The cleaning equipment also includes a base assembly 13 for cleaning the floor brush assembly 9 and charging the cleaning equipment. The base assembly 13 is equipped with water spray holes. When the cleaning equipment is placed on the base assembly 13, a self-cleaning mode can be selected. The base assembly 13 sprays water onto the roller brush assembly 91 through the water spray holes, causing the roller brushes in the roller brush assembly 91 to rotate and complete the self-cleaning process. Additionally, the base assembly 13 is equipped with a plug, which, when plugged into a power outlet, can charge the cleaning equipment.

[0105] When this cleaning equipment is in operation, the suction motor assembly 8 and the roller brush begin to work; the water pump delivers clean water to the roller brush; the suction generated by the suction motor in the suction motor assembly 8 collects the wastewater generated by the friction between the roller brush and the ground into the liner. Due to gravity and the structural design of the clean water tank and the movable liner 21, the wastewater is retained in the wastewater tank assembly 2. The suction then passes through the HEPA assembly 4 and the suction motor assembly 8 before being discharged through the exhaust port. As the clean water in the clean water tank decreases, the movable liner 21 moves synchronously, and the wastewater collected by the movable liner 21 continuously increases, so that the collected wastewater automatically fills the space where the clean water decreases.

[0106] Additionally, when the movable liner 21 moves to the bottom of the clean water tank, the cleaning equipment can indicate that the clean water tank is low on water via the display screen assembly 11, and the cleaning equipment will stop working.

[0107] The water tank assembly can be removed separately from the main body assembly 7. After opening the HEPA assembly 4, the wastewater in the wastewater tank assembly 2 can be emptied. By pulling the handle 23 on the fixed inner liner 22, the wastewater tank assembly 2 can be lifted from the clean water tank assembly 1, allowing clean water to be added to the clean water tank assembly 1. After adding clean water, the wastewater tank assembly 2 is then installed into the clean water tank. At this point, the volume of the wastewater tank assembly 2 is affected by the buoyancy of the clean water in the clean water tank. When the clean water tank is full or reaches the set water level, the movable inner liner 21 moves upward to its highest limit, and the top of the movable inner liner 21 can rest against the fixed inner liner 22. Then, the HEPA assembly 4 is reinstalled, and the entire water tank assembly is reinstalled onto the main body assembly 7. At this point, the entire process of emptying wastewater and adding clean water is completed, and the cleaning equipment can be put into operation again.

[0108] Using a single tank to hold both clean and wastewater makes operation easier for users. It also reduces product size, resulting in a more streamlined design and a more attractive appearance.

[0109] The cleaning equipment can be turned on / off, and its cleaning intensity and operating mode can be adjusted via the control module. The base assembly 13 can be used to clean the floor brush assembly 9 and charge the cleaning equipment.

[0110] The foregoing has described in detail several embodiments of this application, but this application is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications based on the concept of this application, and all such variations and modifications should fall within the scope of protection claimed in this application.

Claims

1. A water tank assembly used in cleaning equipment, characterized in that, The water tank assembly includes: A clean water tank assembly (1) includes a clean water tank for holding clean water, and a clean water outlet assembly (3) for discharging clean water from the clean water tank is provided on the clean water tank. A wastewater tank assembly (2) is disposed inside the clean water tank, and the volume of the wastewater tank assembly (2) can change with the amount of clean water in the clean water tank; the wastewater tank assembly (2) includes a movable inner liner (21) and a fixed inner liner (22); The fixed inner liner (22) is a cylindrical body with openings at both ends, and the fixed inner liner (22) is detachably installed in the clean water tank; The movable inner liner (21) is a cylindrical body with an opening at the top and a seal at the bottom; the top of the movable inner liner (21) is movably fitted onto the fixed inner liner (22) along the axial direction of the fixed inner liner (22), and the fixed inner liner (22) and the movable inner liner (21) are combined to form a sewage space (24) for holding sewage, and the volume of the sewage tank assembly (2) is the volume of the sewage space (24).

2. The water tank assembly according to claim 1, characterized in that, The water tank assembly also includes a HEPA assembly (4) and a wastewater return pipe (5); The top of the fixed liner (22) has two openings. The HEPA assembly (4) is detachably mounted on the top of the clean water tank. The HEPA assembly (4) includes a HEPA body (41), which covers one of the openings of the fixed liner (22). The bottom end of the sewage return pipe (5) is the sewage inlet, and the other end of the sewage return pipe (5) is connected to another opening at the top of the fixed inner lining (22) for discharging sewage into the sewage space (24).

3. The water tank assembly according to claim 2, characterized in that, A partition (25) is provided inside the fixed liner (22), and the partition (25) is located between two openings at the top of the fixed liner (22) to separate the two openings.

4. The water tank assembly according to claim 2, characterized in that, The sewage return pipe (5) includes a straight pipe section (51) and a bend pipe section (52); The straight pipe section (51) is disposed on the clean water tank assembly (1) and located outside the clean water tank assembly (1), and the lower end of the straight pipe section (51) forms the bottom end of the sewage return pipe (5); One end of the bent pipe section (52) is inserted into one end of the straight pipe section (51), and a sealing element is provided at the insertion point of the bent pipe section (52) and the straight pipe section (51). The other end of the bent pipe section (52) extends into the sewage space (24) through another opening at the top of the fixed inner liner (22).

5. The water tank assembly according to claim 2, characterized in that, The movable inner liner (21) is fitted onto the outer wall of the fixed inner liner (22), and the outer wall of the movable inner liner (21) is attached to the inner wall of the clean water tank; When the clean water in the clean water tank is discharged from the clean water outlet assembly (3), the sewage return pipe (5) discharges sewage into the sewage space (24), and the movable liner (21) moves downward under the gravity of the sewage and the weight of the movable liner (21).

6. The water tank assembly according to claim 1, characterized in that, The bottom of the fixed liner (22) is provided with an annular sealing scraper (26) for scraping the inner wall of the movable liner (21); One end of the sealing scraper (26) is fixed to the bottom of the fixed liner (22), and the other end of the sealing scraper (26) abuts against the inner wall of the movable liner (21).

7. A cleaning device, characterized in that, Includes the water tank assembly as described in any one of claims 1 to 6.

8. The cleaning equipment according to claim 7, characterized in that, The cleaning device also includes a handle assembly (6), a body assembly (7), a suction motor assembly (8), and a floor brush assembly (9) disposed on the body assembly (7); The body assembly (7) includes a fixed shell and a water outlet pipe assembly that cooperates with the clean water outlet assembly (3) of the water tank assembly; the handle assembly (6) is disposed on the body assembly (7), the water tank assembly is fixed on the body assembly (7), and when the water tank assembly is fixed on the body assembly (7), the water outlet pipe assembly opens the clean water outlet assembly (3); The suction motor assembly (8) is disposed on the body assembly (7). The air intake of the suction motor assembly (8) is connected to the HEPA assembly (4) disposed on the top of the sewage tank assembly (2). The connection between the air intake and the HEPA assembly (4) is directly opposite one of the openings of the fixed inner liner (22). When the suction motor assembly (8) is turned on, it provides suction to the cleaning equipment.

9. The cleaning equipment according to claim 8, characterized in that, The handle assembly (6) is also provided with a button control module (12), which is provided with a switch button, a gear button for adjusting the gear of the motor assembly, and a mode button for switching the working mode of the cleaning equipment. The cleaning device also includes a base assembly (13) for cleaning the floor brush assembly (9) and for charging the cleaning device.

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