Sewage tank assembly and cleaning equipment

Abstract

The invention relates to a sewage tank assembly and cleaning equipment, the sewage tank assembly comprises a sewage tank, a cover assembly and an unlocking assembly, and the sewage tank is provided with a containing cavity, a sewage inlet and a tank opening; the cover assembly is detachably arranged at the bin opening, the cover assembly is provided with a mounting position for mounting the filter screen, and the filter screen is used for filtering garbage entering the containing cavity through the sewage inlet; the unlocking assembly is arranged on the cover assembly, the unlocking assembly can move relative to the cover assembly so as to be at least switched between a locking position and an unlocking position, and when the unlocking assembly is located at the locking position, the filter screen is limited to the mounting position; when the unlocking assembly is located at the unlocking position, the filter screen can be separated from the cover assembly. The filter screen can be detached by one-key pressing, and the operation is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of surface cleaning technology, and in particular to a wastewater tank assembly and cleaning equipment. Background Technology

[0002] Floor scrubbers and other cleaning equipment have become mainstream tools for household cleaning. These devices are usually equipped with a wastewater tank to temporarily store wastewater and solid waste sucked in during the cleaning process. To achieve solid-liquid separation and facilitate subsequent waste disposal, a filtration structure is often installed inside the wastewater tank.

[0003] A common filtration method involves installing fixed filter screens in the wastewater tank to intercept solid waste such as hair and paper scraps, separating them from the wastewater. However, this fixed filter structure leaves a lot of dirt on its surface after use, requiring manual cleaning by the user. This is not only cumbersome but also makes hands very dirty, resulting in a poor user experience.

[0004] To address these issues, some improvements have proposed incorporating a disposable filter screen inside the wastewater tank. This involves placing a filter bag inside the tank to intercept solid waste. However, in practical applications, this solution still suffers from the following drawbacks: the disposable bag filter screen inevitably becomes contaminated with dirty water and small debris. Manually replacing the filter screen also results in dirty hands and negatively impacts the user experience. Summary of the Invention

[0005] To address at least one of the technical problems mentioned in the background art, embodiments of this application provide a wastewater tank assembly and a cleaning device.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions: A first aspect of this application provides a wastewater tank assembly, comprising: A sewage tank has a receiving cavity, and a sewage inlet and a tank opening respectively communicating with the receiving cavity; A cover assembly is detachably disposed at the box opening, and the cover assembly is provided with a mounting position for installing a filter screen, the filter screen being used to filter garbage entering the receiving cavity through the sewage inlet; An unlocking component is disposed on the cover assembly, the unlocking component being movable relative to the cover assembly to switch at least between a locked position and an unlocked position, wherein when the unlocking component is in the locked position, the filter is confined to the mounting position; and when the unlocking component is in the unlocked position, the filter is detachable from the cover assembly.

[0007] When the filter needs to be replaced, simply switch the unlocking component from the locked position to the unlocked position to release the filter. The user can then detach the filter from the cover assembly without touching it. In other words, when the unlocking component is in the unlocked position, the filter can be separated from the cover assembly, achieving the goal of removing the filter without getting your hands dirty. If the user manually presses the trigger button to switch the unlocking component between the locked and unlocked positions, then a single press is all it takes to remove the filter, making the operation simple and convenient.

[0008] Optionally, as the unlocking component moves away from the filter screen from the locked position to the unlocked position, and when the unlocking component is in the unlocked position, the unlocking component separates from the filter screen, and the filter screen can slide off the mounting position to separate from the cover assembly.

[0009] In this implementation, the mounting position has limited restraint on the filter. The unlocking component, in its locked position, needs to further limit the filter's movement relative to the mounting position. When the unlocking component switches to the unlocked position, its restraining effect disappears, and the filter can detach from the mounting position. Furthermore, during the movement from the locked to the unlocked position, the unlocking component itself moves away from the filter, eliminating the need to move the filter along with it. Consequently, the external force required for unlocking is smaller, and if this external force is manually triggered by the user, the unlocking process is even less strenuous.

[0010] Optionally, the mounting position includes a mounting groove and a mounting port communicating with the mounting groove, the filter screen includes a mesh opening and a filter body, and the mesh opening is installed in the mounting groove from the mounting port; When the unlocking component is in the locked position, the unlocking component partially extends into the filter screen to prevent the filter screen from sliding off the mounting port.

[0011] Optionally, when the unlocking component is in the unlocked position, the unlocking component is located outside the filter screen, and the cover assembly is tilted so that the filter screen can slide off from the mounting port.

[0012] Optionally, the mounting groove has an inner wall that is inclined toward the mounting port. When the unlocking component is in the unlocked position, the unlocking component is located outside the filter screen, and the filter screen can slide along the inclined inner wall toward the mounting port.

[0013] Optionally, the unlocking component includes: A driving component, one end of which is provided with a trigger key and the other end of which is provided with driving teeth; Transmission components, having transmission teeth; An actuator has mating teeth, and the transmission component meshes with the drive teeth and the mating teeth respectively through the transmission teeth; When the trigger key is activated by an external force, the driving component drives the actuator to switch from the locked position to the unlocked position via the transmission component.

[0014] Optionally, the unlocking component further includes a first elastic element, which is connected to the driving element and the cover assembly respectively, to provide elastic force for the driving element to reset from the unlocked position to the locked position.

[0015] Optionally, the transmission component includes a gear, and the actuator includes a rack meshing with the gear and a push rod connected to the rack; When the unlocking component is in the locked position, the push rod extends into the filter screen from the mesh opening; when the unlocking component is in the unlocked position, the push rod rises above the mounting slot.

[0016] Optionally, the unlocking component moves relative to the cover component in a preset direction to leave the locked position, and pushes the filter screen to separate from the mounting position during the movement.

[0017] The unlocking component moves the filter screen synchronously during the unlocking process. Once the unlocking component has pushed the filter screen a certain distance to the unlocking position, the filter screen is no longer constrained by the mounting position and automatically detaches. This method of removing the filter screen is relatively reliable; even if the gap between the screen opening and the mounting groove is small and gets stuck, the unlocking component can still push it off.

[0018] Optionally, the mounting position includes a mounting groove, and a mounting port and a clearance port communicating with the mounting groove. The filter screen includes a mesh opening and a filter body. The mesh opening is installed in the mounting groove from the mounting port, and the clearance port is used to avoid the filter body. The preset direction includes vertically downward, and the unlocking component pushes the filter screen to fall from the avoidance opening during its vertically downward movement.

[0019] Optionally, the unlocking component includes a movable part, one end of which has a trigger key. When an external force triggers the trigger key, the movable part moves from the locked position to the unlocked position.

[0020] Optionally, the unlocking component further includes a second elastic element, which is connected to the movable element and the cover assembly respectively, and the elastic element provides an elastic force for the movable element to reset from the unlocked position to the unlocked position.

[0021] Optionally, the cover assembly includes a handle position for user operation, and the trigger key is adjacent to or located within the handle position.

[0022] Optionally, the cover assembly has a top surface facing away from the sewage tank and a side surface adjacent to the top surface, the side surface of the cover being provided with the handle, and the top surface of the cover being provided with the trigger button.

[0023] Optionally, the cover assembly includes: Top cover; A bracket is connected to the upper cover. When the cover assembly is connected to the sewage tank, the bracket extends at least partially into the receiving cavity, and the bracket divides the receiving cavity into an air intake space and a sewage intake space. The air intake space has an airflow channel that penetrates the upper cover. The sewage intake space is connected to the sewage inlet. The mesh portion surrounds the sewage intake space, and the side wall of the sewage tank blocks the installation port.

[0024] A second aspect of this application provides a cleaning device, including a body, a floor brush, a suction motor, and a wastewater tank assembly as described above. The body is rotatably connected to the floor brush, which has a suction port. The suction motor provides a suction flow to sequentially draw debris from the surface to be cleaned into the wastewater tank of the wastewater tank assembly through the suction port and the wastewater inlet. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 A schematic diagram of the structure of the cleaning equipment is provided for some embodiments of this application; Figure 2 A schematic diagram of the structure of the sewage tank assembly is provided for some embodiments of this application; Figure 3 for Figure 2 An exploded structural diagram of a wastewater tank assembly; Figure 4 A schematic diagram of the filter screen structure is provided for some embodiments of this application; Figure 5 This is a longitudinal sectional view of the cover assembly in Embodiment 1; Figure 6 This is a schematic diagram of the unlocking component in Embodiment 1, wherein the first elastic element is not installed on the driving element; Figure 7 This is a structural schematic diagram of the cover assembly from another perspective in Embodiment 1; Figure 8 This is a cross-sectional view of the mounting position in some implementations of Example 1; Figure 9 This is a longitudinal sectional view of the cover assembly in Embodiment 2; Figure 10 for Figure 9 Another cross-sectional view of the middle cover component; Figure 11 This is a structural schematic diagram of the cover assembly from another perspective in Embodiment 2.

[0027] Explanation of reference numerals in the attached figures: 1. Body; 101. Handle; 2. Wastewater tank assembly; 3. Floor brush; 301. Roller brush; 4. Clean water tank; 5. Suction motor; 10. Cover assembly; 11. Top cover; 12. Bracket; 121. Mounting position; 1211. Mounting port; 1212. Clearance port; 1213. Top wall; 1214. Bottom wall; 1215. Sloping inner wall; 122. Guide groove; 1221. Limiting step; 124. First partition; 125. Second partition; 1251. Suction space; 1252. Suction space; 126. Airflow channel; 13. 14. Top surface of the cover; 111. Side surface of the cover; 20. Handle position; 21. Wastewater tank; 22. Receiving cavity; 23. Wastewater inlet; 24. Tank opening; 35. Unlocking component; 36. Driving component; 37. Driving gear; 38. Trigger key; 39. Transmission component; 30. Transmission gear; 31. Gear shaft; 32. Actuator; 33. Rack; 33. Mating gear; 34. Push rod; 35. Moving part; 36. Mounting column; 47. First elastic element; 48. HEPA filter; 19. Filter screen; 100. Filter opening; 110. Filter body. Detailed Implementation

[0028] To make the technical solution and beneficial effects of the present invention more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0029] In the description of this invention, the terms "thickness", "height", "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 purpose of simplifying the description of this invention and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limiting this invention.

[0030] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature defined as "first" or "second" can explicitly include at least one of those features. In the description of this invention, "a plurality of" means at least two, such as two, three, etc.

[0031] In this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] The cleaning equipment described in this application includes, but is not limited to, floor scrubbers, electric mops, steam mops, and sweeper-mop combos. For ease of description, a floor scrubber will be used as an example to provide a detailed description of the cleaning equipment below.

[0033] like Figure 1 As shown, the cleaning equipment generally includes a body 1 and a floor brush 3. During the cleaning process, the user holds the brush 101 on the top of the body 1 and swings the body 1 to move the floor brush 3 across the surface to be cleaned. The floor brush 3 is equipped with a roller brush 301, a conveyor belt, and other cleaning components. As the floor brush 3 moves across the surface to be cleaned, the cleaning components come into frictional contact with the surface, thus cleaning it. Surfaces to be cleaned include floors, carpets, walls, tabletops, etc.

[0034] The cleaning equipment may also include a water supply system, which includes a clean water tank 4, a water pump, a liquid distributor, etc. The clean water tank 4 stores cleaning liquid, and the water pump can deliver the cleaning liquid in the clean water tank 4 to the cleaning components through the liquid distributor to wet the cleaning components and achieve wet cleaning of the ground by the cleaning components.

[0035] The cleaning equipment may also include a sludge suction system, which comprises a sludge tank assembly 2 and a suction motor 5. The sludge tank assembly 2 has a receiving cavity 21. Typically, the floor brush 3 is equipped with a suction port (not shown), and a fluid channel exists between the suction port and the suction motor 5. The negative pressure suction generated by the high-speed operation of the suction motor 5 can penetrate the entire fluid channel. Under the action of negative pressure suction, the solid-liquid mixture of dirt generated from wet cleaning can enter the receiving cavity 21 through the suction port of the floor brush 3 and the fluid channel. To improve the solid-liquid separation effect of dirt in the receiving cavity 21, related technologies add a disposable filter screen 100 to the sludge tank assembly 2 (see...). Figure 4), filter screen 100 traps solid waste, while liquid flows through filter screen 100 into the bottom of receiving cavity 21. To improve the issue of users getting their hands dirty when changing filter screen 100, combined with Figures 1 to 11 The present application proposes the following technical solutions in its embodiments.

[0036] Example 1

[0037] See Figure 2 and Figure 7 ,in, Figure 4 An exemplary structure of filter 100 is shown.

[0038] Example 1 provides a wastewater tank assembly 2, which includes a wastewater tank 20, a cover assembly 10, and an unlocking assembly 30 (see...). Figure 5 and Figure 6 The wastewater tank 20 has a receiving cavity 21, and a wastewater inlet 22 and a tank opening 23 respectively communicating with the receiving cavity 21. The cover assembly 10 is detachably provided at the tank opening 23, and the cover assembly 10 has a mounting position 121 for installing a filter screen 100, which is used to filter garbage entering the receiving cavity 21 through the wastewater inlet 22.

[0039] See Figure 5 and Figure 7 The unlocking component 30 is disposed on the cover component 10 and is movable relative to the cover component 10 to switch at least between a locked position and an unlocked position. Figure 5 and Figure 7 In the example cover assembly 10, the unlocking component 30 is in the locked position. When the unlocking component 30 is in the locked position, the filter 100 is restricted to the mounting position 121. When the unlocking component 30 is in the unlocked position, the filter 100 can be separated from the cover assembly 10.

[0040] When the filter 100 needs to be replaced, the unlocking component 30 is switched from the locked position to the unlocked position, releasing the filter 100 from its restriction. The user can then separate the filter 100 from the cover assembly 10 without touching it. In other words, when the unlocking component 30 is in the unlocked position, the filter 100 can be separated from the cover assembly 10, achieving the goal of removing the filter 100 without getting your hands dirty. If the switching between the locked and unlocked positions of the unlocking component 30 is achieved by the user manually pressing the trigger button 312, then the filter 100 can be removed with a single press, making the operation simple and convenient.

[0041] In some applications, the wastewater tank assembly 2 is detachably mounted on the body 1 of the cleaning equipment. When replacing the filter 100, the wastewater tank assembly 2 must first be removed from the body 1, then the wastewater tank 20 and the cover assembly 10 must be separated, and finally the filter 100 must be removed. Before removing the filter 100, locking the unlocking component 30 can reduce or even prevent the filter 100 from falling off prematurely during the removal of the wastewater tank assembly 2 or the wastewater tank 20. After the wastewater tank 20 is separated from the cover assembly 10, the unlocking component 30 is then switched to the unlocked position.

[0042] When the unlocking component 30 is in the locked position, the filter 100 is limited to the mounting position 121, meaning that the filter 100 is locked and cannot be removed. This limiting function can be achieved by the unlocking component 30 alone, by the mounting position 121 alone, or by the unlocking component 30 and the mounting position 121 working together.

[0043] Figure 5 and Figure 7 In the implementation shown, when the unlocking component 30 is in the locked position, the unlocking component 30 and the mounting position 121 work together to limit the position of the filter screen 100.

[0044] In some alternative embodiments, the unlocking component 30 moves away from the filter 100 as it moves from the locked position to the unlocked position. When the unlocking component is in the unlocked position, it separates from the filter 100, allowing the filter 100 to slide off the mounting position 121 and separate from the cover assembly 10. In this implementation, the mounting position 121 has a limited restrictive effect on the filter 100, requiring the unlocking component 30 in the locked position to further restrict the filter 100 and prevent it from sliding relative to the mounting position 121. When the unlocking component 30 switches to the unlocked position, its restrictive effect disappears, and the filter 100 can separate from the mounting position 121. Moreover, during the movement from the locked position to the unlocked position, the unlocking component 30 itself moves away from the filter 100, without needing to move the filter 100 along with it. Consequently, the external force required for the unlocking process is smaller, and if this external force is manually triggered by the user, the manual unlocking process is even less strenuous.

[0045] See Figure 7 In some alternative embodiments, the mounting position 121 includes a mounting slot and a mounting port 1211 communicating with the mounting slot. See also Figure 4 The filter 100 includes a mesh opening 110 and a filter body 120. The mesh opening 110 is installed in the mounting slot through the mounting port 1211. When the unlocking component 30 is in the locked position, a portion of the unlocking component 30 extends into the filter 100 to prevent the filter 100 from sliding off the mounting port 1211. Figure 5 and Figure 7An example is shown of the unlocking component 30 in the locked position, showing the network port 110, but not the filter body 120.

[0046] The filter screen 100 is installed and fixed through the mesh opening 110. The mesh opening 110 is ring-shaped, and the unlocking component 30 extends into the mesh opening 110 to prevent the filter screen 100 from sliding towards the mounting port 1211, thereby locking the filter screen 100.

[0047] The network port 110 is inserted into the mounting slot through the mounting port 1211. For example... Figure 7 As shown, the mesh opening 110 can be a ring-shaped thin sheet with a greater rigidity than the filter body 120, so as to better support the filter body 120. The mounting groove includes a top wall 1213 and a bottom wall 1214 distributed vertically. The mesh opening 110 is sandwiched between the top wall 1213 and the bottom wall 1214, limiting the vertical movement of the filter screen 100. The height of both the mounting groove and the mounting opening 1211 is greater than the thickness of the mesh opening 110, which facilitates the filter screen 100 sliding out of the mounting groove after unlocking.

[0048] In a non-limiting manner, in Embodiment 1, when the unlocking component 30 is in the locked position, the unlocking component 30 can contact the filter screen 100, reducing the shaking of the filter screen 100 in the mounting slot.

[0049] See Figure 5 The mounting position 121 also includes a clearance opening 1212 communicating with the mounting groove, which is used to avoid the filter body 120. Dirt entering the receiving cavity 21 enters the filter body 120 through the mesh opening 110, and the filter body 120 is used to intercept solid waste.

[0050] Mounting position 121 is used to mount the filter 100. In other embodiments not illustrated in this application, mounting position 121 may also take the form of a mounting platform. In this case, the mesh opening 110 of the filter 100 may adopt a slot structure, with the slot inserted into the mounting platform to achieve the installation of the filter 100. It is understood that, relatively speaking, in the implementation shown in the illustrations of this application, the filter 100 structure is simpler, the cost is lower, and the connection between the filter 100 and the mounting slot is simpler and more convenient.

[0051] In some alternative embodiments, when the unlocking component 30 is in the unlocked position, the unlocking component 30 is located outside the filter screen 100, and the cover component 10 is tilted so that the filter screen 100 slides off the mounting port 1211.

[0052] When the filter screen 100 is removed, it contains debris and has a certain weight. Consequently, the unlocking component 30 separates from the filter screen 100, releasing its restraining effect. The user then moves towards the installation port 1211 (see...). Figure 5(In the direction of the middle arrow) the tilted cover assembly 10 is tilted, and the filter screen 100 can automatically slide down from the mounting port 1211 under its own gravity. In this case, the inner wall of the mounting groove can be set horizontally.

[0053] See Figure 8 In some alternative embodiments, the mounting slot has an inner wall 1215 inclined toward the mounting opening 1211. When the unlocking component 30 is in the unlocked position, the unlocking component 30 is located outside the filter screen 100, and the filter screen 100 can automatically slide toward the mounting opening 1211 along the inclined inner wall 1215. Utilizing the guiding effect of the inclined inner wall 1215 on the filter screen 100, after the unlocking component 30 is switched to the unlocked position, the filter screen 100 can automatically fall off without the need for the inclined cover component 10, reducing the number of operation steps.

[0054] See Figure 5 and Figure 6 In some optional embodiments, the unlocking component 30 includes a driving member 31, a transmission member 32, and an actuating member 33. One end of the driving member 31 is provided with a trigger key 312, and the other end is provided with a driving tooth 311. The transmission member 32 has a transmission tooth 321. The actuating member 33 has a mating tooth 3311, and the transmission member 32 engages with both the driving tooth 311 and the mating tooth 3311 via the transmission tooth 321. When an external force triggers the trigger key 312, the driving member 31 drives the actuating member 33 to switch from the locked position to the unlocked position via the transmission member 32.

[0055] The external force can be the force exerted by the user on the trigger button 312, such as the pressure of a finger pressing. When the unlocking component 30 is in the locked position, the actuator 33 extends into the filter screen 100, preventing the mesh opening 110 from sliding towards the mounting opening 1211. After the user presses the trigger button 312, the drive component 31 moves downward, and the transmission component 32 moves upward under the action of the drive gear 311 and the transmission gear 321. Under the action of the transmission gear 321 and the mating gear 3311, the transmission component 32 drives the actuator 33 upward to a position away from the filter screen 100, such as the actuator 33 rising above the mounting slot, releasing the restriction on the filter screen 100.

[0056] See Figure 4 In some optional embodiments, the unlocking component 30 further includes a first elastic element 36, which is connected to the driving component 31 and the cover component 10 respectively, to provide elastic force for the driving component 31 to reset from the unlocked position to the locked position. After the user manually triggers the unlocking component 30 to unlock, the first elastic element 36 automatically resets the unlocking component 30 from the unlocked position to the locked position, eliminating the need for the user to manually reset the unlocking component 30 again, making the operation simpler and more convenient.

[0057] The first elastic element 36 includes a spring, a sheet, or an elastic rubber component, etc.

[0058] When the filter 100 needs to be removed, the user presses the trigger button 312. The drive member 31 compresses the first elastic member 36 downwards, storing elastic force in the first elastic member 36. Based on the foregoing description, the pressing force of the drive member 31 is transmitted to the actuator 33 via the transmission member 32, causing the actuator 33 to switch from the locked position to the unlocked position. After the filter 100 is separated from the cover assembly 10, the user releases the pressing force, the first elastic member 36 releases its elastic force, and under the action of the elastic force, the drive member 31 moves upwards, thereby resetting the actuator 33 from the unlocked position back to the locked position.

[0059] See Figure 5 and Figure 6 In some alternative embodiments, the transmission component 32 includes a gear, and the actuator 33 includes a rack 331 meshing with the gear and a push rod 332 connected to the rack 331. When the unlocking component 30 is in the locked position, the push rod 332 extends into the filter screen 100 from the mesh opening 110; when the unlocking component 30 is in the unlocked position, the push rod 332 rises above the mounting slot.

[0060] The part of the drive component 31 that meshes with the gear is also similar to a rack and pinion structure. The unlocking component 30 switches between the unlocked and locked positions by using the gear and rack 331 in cooperation. The structure is compact, simple and reliable.

[0061] See Figure 6 Multiple driving teeth 311 and multiple mating teeth 3311 are arranged side by side in a vertical direction, with the driving teeth 311 and mating teeth 3311 facing each other. The gear is clamped between the driving member 31 and the rack 331. A guide groove 122 can be provided on the cover assembly 10, and the gear (i.e., the transmission member 32) and the rack 331 are placed in the guide groove 122. The driving member 31 extends into the guide groove 122, and the gear shaft 322 is rotatably connected to the bracket 12. The limiting function of the guide groove 122 is used to maintain the meshing relationship between the driving teeth 311, the transmission teeth 321, and the mating teeth 3311. At the same time, the inner wall of the guide groove 122 can also guide the up and down movement of the driving member 31 and the actuator 33, thereby improving the stability of the actuator 33 during multiple position switching processes.

[0062] See Figure 5 A limiting step 1221 can also be set in the guide groove 122. When the actuator 33 moves down to abut against the limiting step 1221, it can no longer descend.

[0063] For example, see Figure 6 The drive component 31 is provided with a mounting post 35, and the first elastic element 36 is sleeved on the mounting post 35 to facilitate the connection between the first elastic element 36 and the drive component 31.

[0064] See Figure 3In some alternative embodiments, the cover assembly 10 includes an upper cover 11 and a bracket 12. The bracket 12 is connected to the upper cover 11. When the cover assembly 10 is connected to the sewage tank 20, the bracket 12 extends at least partially into the receiving cavity 21, and the bracket 12 divides the receiving cavity 21 into an air intake space 1252 and a sludge intake space 1251. The air intake space 1252 has an airflow channel 126 that penetrates the upper cover 11. The sludge intake space 1251 communicates with the sludge inlet 22. The mesh opening 110 surrounds the sludge intake space 1251, and the side wall of the sewage tank 20 is sealed with an installation port 1211.

[0065] Cleaning the sewage tank assembly 2 includes emptying the sewage from the sewage tank 20 and cleaning the solid waste trapped by the filter screen 100. Furthermore, considering the different subsequent treatment methods for sewage and solid waste, sewage is generally discharged into the sewer, while solid waste is placed in a garbage can. The replacement of the filter screen 100 primarily occurs after the sewage tank 20 and the cover assembly 10 are separated, i.e., after the sewage tank 20 is separated from the cover assembly 10, the mounting port 1211 is in an open state. When the sewage tank 20 is connected to the cover assembly 10, the mounting port 1211 is sealed, ensuring the reliability of the filter screen 100 being locked when the sewage tank 20 is not disassembled, and reducing the risk of the filter screen 100 falling off prematurely.

[0066] The top cover 11 covers the box opening 23. The bracket 12 can be used to form the mounting position 121 as a mounting carrier for the filter screen 100, and can also divide the space inside the receiving cavity 21 to guide the dirt to flow along the expected path, reducing the risk of sewage entering the airflow channel 126. For example, dirt first enters the suction space 1251 through the sewage inlet 22, flows downward through the suction space 1251 into the filter screen 100, and after being filtered by the filter screen 100, the heavier sewage continues to flow downward into the bottom space below the bracket 12. The suction space 1252 is located outside the suction space 1251. The lighter airflow flowing out of the suction space 1251 flows upward and enters the suction motor 5 in sequence through the suction space 1252 and the airflow channel 126. The top cover 11 is generally equipped with a filter component such as HEPA 40 to filter the airflow flowing out of the suction space 1252 again to reduce the moisture content of the airflow flowing to the suction motor 5.

[0067] The aforementioned guide groove 122 can be installed inside the bracket 12.

[0068] See Figure 7The support 12 includes a first partition 124 and a second partition 125. When the cleaning equipment is in a horizontal position, the second partition 125 is located above the first partition 124. The second partition 125 divides the space above the first partition 124 into a suction space 1251 and an air suction space 1252. The air suction space 1252 is located around the suction space 1251 and is effectively isolated, reducing the risk of sewage being sucked into the suction motor. The space below the first partition 124 is in fluid communication with the space above the first partition 124. The aforementioned mounting position 121 is located at the bottom of the second partition 125 and is arranged around the suction space 1251. Dirt flowing out of the suction space 1251 can flow down into the space below the first partition 124 after being filtered by the filter screen 100.

[0069] See Figure 2 In some alternative embodiments, the cover assembly 10 includes a handle position 111 for user operation, with a trigger key 312 adjacent to the handle position 111. The handle position 111 is for the user to easily remove the sewage tank assembly 2 from the body 1. Positioning the trigger key 312 adjacent to the handle position 111 makes it easier for the user to manually operate the trigger key 312, thus making it more convenient to use.

[0070] See Figure 2 In some optional embodiments, the cover assembly 10 has a top surface 13 facing away from the sewage tank 20, and a side surface 14 adjacent to the top surface 13. The side surface 14 is provided with a handle 111, and the top surface 13 is provided with a trigger button 312. When the trigger button 312 is in this position, the user can operate the trigger button 312 with their thumb while holding the handle 111, enabling one-handed operation, which is more in line with the user's daily usage habits and provides a better user experience. In the embodiment illustrated in this application, the handle 111 is recessed, and the trigger button 312 is exposed on the top of the upper cover 11 and adjacent to the handle 111. The user's four fingers other than the thumb can be inserted into the handle 111, and the thumb exposed outside the handle 111 can press the trigger button 312. The user can pick up the cover assembly 10 with one hand and release the filter screen 100 with one button, making the operation simple and efficient. In other implementations, the trigger button 312 can be located in other positions, and it is not necessary for the trigger button 312 to be exposed outside the cover component 10. For example, the trigger button 312 can be located inside the handle position 111, and the user can operate the trigger button 312 by inserting a finger inside the handle position 111.

[0071] Example 2

[0072] Figures 9 to 11 A schematic diagram of the structure of the cover assembly 10 in Embodiment 2 is shown as an example.

[0073] The wastewater tank assembly 2 in Embodiment 2 is largely the same in structure as the wastewater tank assembly 2 in Embodiment 1. For example, the unlocking component 30 in Embodiment 2 is movable relative to the cover assembly 10 to switch between at least a locked position and an unlocked position. When the unlocking component 30 is in the locked position, the filter screen 100 is confined to the mounting position 121; when the unlocking component 30 is in the unlocked position, the filter screen 100 can be separated from the cover assembly 10. The similarities between these two embodiments will not be repeated here; the following focuses on describing the differences between Embodiment 2 and Embodiment 1.

[0074] The unlocking process in Embodiment 2 differs from that in Embodiment 1. In the wastewater tank assembly 2 of Embodiment 2, the unlocking component 30 moves relative to the cover assembly 10 in a preset direction to leave the locked position, and pushes the filter screen 100 to separate from the mounting position 121 during the movement.

[0075] In Example 2, the unlocking component 30 drives the filter screen 100 to move synchronously during the unlocking process. When the unlocking component 30 pushes the filter screen 100 a certain distance to the unlocking position, the filter screen 100 is no longer constrained by the mounting position 121 and falls off. This method of removing the filter screen 100 is relatively reliable. Even if the gap between the mesh opening 110 and the mounting groove is small and gets stuck, it can still be pushed off by the unlocking component 30.

[0076] Figure 10 and Figure 11 An exemplary schematic diagram of the unlocking component 30 in the locked position is shown. In some implementations, when the unlocking component 30 is in the locked position, it can be moved away from the mounting position 121 or the filter 100, which is secured by the mounting position 121. This arrangement can reduce or even avoid interference from the unlocking component 30 with the installation of the filter 100. For example, the mounting groove includes a top wall 1213 and a bottom wall 1214 distributed vertically, with the mesh opening 110 sandwiched between the top wall 1213 and the bottom wall 1214, limiting the vertical movement of the filter 100. The mounting opening 1211 is located on the side, and the mesh opening 110 contacts the inner wall of the mounting groove, with a certain friction between them, so that the filter 100 will not easily fall off from the open mounting opening 1211.

[0077] The preset direction can be horizontal. For example, the unlocking component 30 horizontally pushes the filter 100 towards the mounting port 1211, causing the filter 100 to detach from the mounting port 1211. Of course, the preset direction can also be vertically downward (see [link]). Figure 10 (As indicated by the middle arrow), the unlocking component 30 pushes the filter 100 downwards, causing the filter 100 to fall downwards from the clearance opening 1212. The following description of Embodiment 2 uses a preset direction of vertically downwards as an example.

[0078] In some alternative embodiments, the mounting position 121 includes a mounting groove, and a mounting port 1211 and a clearance port 1212 communicating with the mounting groove. The filter screen 100 includes a mesh opening portion 110 and a filter body 120. The mesh opening portion 110 is installed in the mounting groove from the mounting port 1211, and the clearance port 1212 is used to avoid the filter body 120. The preset direction includes vertically downward, and the unlocking component 30 pushes the filter screen 100 to fall from the clearance port 1212 during vertically downward movement.

[0079] When it is necessary to disassemble the filter screen 100, an external force is applied to the unlocking component 30. Under the action of the external force, the unlocking component 30 moves vertically downward, pushing the mesh opening 110 of the filter screen 100, causing the mesh opening 110 to gradually disengage from the limit of the mounting groove. After the filter screen 100 has been pushed downward a certain distance, under the action of gravity of the debris inside the filter screen 100, the filter screen 100 can automatically fall off and separate from the cover component 10.

[0080] The unlocking component 30 pushes down the filter screen 100 in a vertically downward direction, making it easier to utilize the vertical space of the sewage tank component 2 and making it easier to implement.

[0081] In some alternative embodiments, the unlocking component 30 includes a movable member 34, one end of which has a trigger button 312. When the trigger button 312 is triggered by external force, the movable member 34 moves from the locked position to the unlocked position. If the user operates the trigger button 312 by pressing, since the pressing force is in the same direction as the movable member 34 pushing the filter 100 off, the unlocking component 30 can eliminate the need for a complex transmission structure. A guide groove 122 is provided in the bracket 12 to accommodate the movable member 34. Unlocking can be achieved by guiding the movable member 34 to move using the guide groove 122, resulting in a simpler structure.

[0082] During the unlocking process, the filter 100 is moved by the other end of the movable part 34, which is away from the trigger button 312. The trigger button 312 can be part of the movable part 34, with the two being integrally formed. Of course, the trigger button 312 can also be a separate component independent of the movable part 34.

[0083] For example, the active member 34 is a rod.

[0084] In some alternative embodiments, the unlocking component 30 further includes a second elastic element connected to the movable component 34 and the cover component 10, respectively, and the elastic element provides elastic force for the movable component 34 to reset from the unlocked position to the unlocked position.

[0085] After the user manually triggers the unlocking component 30 to unlock, the second elastic element automatically resets the unlocking component 30 from the unlocked position to the locked position, eliminating the need for the user to manually reset the unlocking component 30 again, making the operation simpler and more convenient.

[0086] See Figure 10 The movable part 34 can also be equipped with a mounting post 35, and the second elastic element can be connected to the movable part 34 through the mounting post 35.

[0087] The two ends of the second elastic element can be connected to the movable element 34 and the bracket 12, respectively.

[0088] The second elastic element includes springs, sheet metal, or elastic rubber components, etc.

[0089] When the filter 100 needs to be removed, the user presses the trigger button 312. The movable part 34 compresses the second elastic element downwards, storing elastic force in the second elastic element. Under the action of external force, the movable part 34 pushes the filter 100 downwards until the filter 100 separates from the cover assembly 10. The user then releases the pressure. The second elastic element releases its elastic force, and under the action of the elastic force, the movable part 34 moves upwards, thus resetting from the unlocked position to the locked position.

[0090] Other structures of the sewage tank assembly 2 in Example 2 can be set with reference to Example 1, and will not be described again.

[0091] Example 3

[0092] Based on the foregoing description, Embodiment 3 provides a cleaning device, which includes a body 1, a floor brush 3, a suction motor 5, and a wastewater tank assembly 2 of any of the foregoing embodiments. The body 1 is rotatably connected to the floor brush 3, which has a suction port. The suction motor 5 provides a suction flow to suck the garbage on the surface to be cleaned into the wastewater tank 20 of the wastewater tank assembly 2 through the suction port and the wastewater inlet 22.

[0093] The cleaning equipment has the technical effects described in any of the foregoing embodiments, and will not be described again.

[0094] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0095] In the description of this specification, references to "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0096] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A sewage tank assembly, characterized in that, include: The sewage tank (20) has a receiving cavity (21), and a sewage inlet (22) and a tank opening (23) respectively communicating with the receiving cavity (21); A cover assembly (10) is detachably disposed at the box opening (23). The cover assembly (10) is provided with a mounting position (121) for installing a filter screen (100). The filter screen (100) is used to filter garbage that enters the receiving cavity (21) through the sewage inlet (22). An unlocking component (30) is disposed on the cover assembly (10), the unlocking component (30) being movable relative to the cover assembly (10) to switch at least between a locked position and an unlocked position, wherein when the unlocking component (30) is in the locked position, the filter (100) is restricted to the mounting position (121); when the unlocking component (30) is in the unlocked position, the filter (100) is detachable from the cover assembly (10).

2. The sewage tank assembly according to claim 1, characterized in that, As the unlocking component (30) moves away from the filter (100) from the locked position to the unlocked position, and when the unlocking component (30) is in the unlocked position, the unlocking component (30) separates from the filter (100), and the filter (100) can slide off the mounting position (121) to separate from the cover component (10).

3. The sewage tank assembly according to claim 1 or 2, characterized in that, The mounting position (121) includes a mounting groove and a mounting port (1211) communicating with the mounting groove. The filter screen (100) includes a mesh opening (110) and a filter body (120). The mesh opening (110) is installed in the mounting groove from the mounting port (1211). When the unlocking component (30) is in the locked position, the unlocking component (30) extends into the filter (100) to prevent the filter (100) from sliding off the mounting port (1211).

4. The sewage tank assembly according to claim 3, characterized in that, When the unlocking component (30) is in the unlocked position, the unlocking component (30) is located outside the filter screen (100), and the cover component (10) is tilted so that the filter screen (100) can slide off from the mounting port (1211).

5. The sewage tank assembly according to claim 3, characterized in that, The mounting groove has an inner wall (1215) that is inclined toward the mounting port (1211). When the unlocking component (30) is in the unlocked position, the unlocking component (30) is located outside the filter screen (100), and the filter screen (100) can slide along the inclined inner wall (1215) toward the mounting port (1211).

6. The sewage tank assembly according to claim 4, characterized in that, The unlocking component (30) includes: A driving component (31) is provided with a trigger key (312) at one end and a driving tooth (311) at the other end. The transmission component (32) has a transmission tooth (321); The actuator (33) has a mating tooth (3311), and the transmission member (32) meshes with the drive tooth (311) and the mating tooth (3311) respectively through the transmission tooth (321); When the trigger key (312) is triggered by an external force, the drive member (31) drives the actuator (33) to switch from the locked position to the unlocked position through the transmission member (32).

7. The sewage tank assembly according to claim 6, characterized in that, The unlocking component (30) further includes a first elastic element (36), which is connected to the drive element (31) and the cover component (10) respectively, to provide elastic force for the drive element (31) to reset from the unlocked position to the locked position.

8. The sewage tank assembly according to claim 6, characterized in that, The transmission component (32) includes a gear, and the actuator (33) includes a rack (331) meshing with the gear, and a push rod (332) connected to the rack (331). When the unlocking component (30) is in the locked position, the push rod (332) extends into the filter screen (100) from the mesh opening (110); when the unlocking component (30) is in the unlocked position, the push rod (332) rises above the mounting slot.

9. The sewage tank assembly according to claim 1, characterized in that, The unlocking component (30) moves relative to the cover component (10) in a preset direction to leave the locked position, and pushes the filter (100) to separate from the mounting position (121) during the movement.

10. The wastewater tank assembly according to claim 9, characterized in that, The mounting position (121) includes a mounting groove, and a mounting port (1211) and a clearance port (1212) communicating with the mounting groove. The filter screen (100) includes a mesh opening (110) and a filter body (120). The mesh opening (110) is installed in the mounting groove from the mounting port (1211), and the clearance port (1212) is used to avoid the filter body (120). The preset direction includes vertically downward, and the unlocking component (30) pushes the filter (100) to fall from the avoidance opening (1212) during the vertically downward movement.

11. The wastewater tank assembly according to claim 10, characterized in that, The unlocking component (30) includes a movable part (34), one end of which has a trigger key (312). When an external force triggers the trigger key (312), the movable part (34) moves from the locked position to the unlocked position.

12. The wastewater tank assembly according to claim 11, characterized in that, The unlocking component (30) further includes a second elastic element, which is connected to the movable component (34) and the cover component (10) respectively. The elastic element provides elastic force for the movable component (34) to reset from the unlocking position to the unlocking position.

13. The wastewater tank assembly according to claim 11, characterized in that, The cover assembly (10) includes a handle position (111) for user operation, and the trigger key (312) is adjacent to or located within the handle position (111).

14. The wastewater tank assembly according to claim 13, characterized in that, The cover assembly (10) has a top surface (13) facing away from the sewage tank (20) and a side surface (14) adjacent to the top surface (13). The side surface (14) is provided with the handle position (111), and the top surface (13) is provided with the trigger key (312).

15. The wastewater tank assembly according to claim 3, characterized in that, The cover assembly (10) includes: Top cover (11); A bracket (12) is connected to the upper cover (11). When the cover assembly (10) is connected to the sewage tank (20), the bracket (12) extends at least partially into the receiving cavity (21), and the bracket (12) divides the receiving cavity (21) into an air suction space (1252) and a sludge suction space (1251). The air suction space (1252) has an airflow channel (126) that penetrates the upper cover (11). The sludge suction space (1251) is connected to the sludge inlet (22). The mesh opening (110) surrounds the sludge suction space (1251). The side wall of the sewage tank (20) blocks the installation port (1211).

16. A cleaning device, characterized in that, The assembly includes a body (1), a floor brush (3), a suction motor (5), and a wastewater tank assembly (2) according to any one of claims 1 to 15. The body (1) is rotatably connected to the floor brush (3), the floor brush (3) having a suction port, and the suction motor (5) providing a suction flow to draw the debris on the surface to be cleaned into the wastewater tank (20) of the wastewater tank assembly (2) in sequence through the suction port and the wastewater inlet (22).

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