Sewage cleaning tank assembly and sweeping robot base station

By designing a water tank assembly that is easy to disassemble and reassemble, the problem of users having difficulty cleaning the automatic water tank is solved, enabling rapid cleaning and sealing, and improving the user experience.

CN224055934UActive Publication Date: 2026-03-31SHENZHEN HUA XIN INFORMATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The automatic water tank assembly and disassembly of existing smart robotic vacuum cleaners are complex, making it difficult for users to clean them themselves. This leads to odors and bacterial growth, negatively impacting the user experience.

Method used

A clean water tank assembly was designed, including a tank body, a cover, a clean water chamber, and a filter chamber. The assembly and disassembly are made convenient through a simple interface design and sealant. Combined with the wastewater filter and snap-fit ​​connection, it enables rapid cleaning.

Benefits of technology

Users can quickly clean the sewage module through simple disassembly and assembly, reducing bacterial growth, improving user experience, and enhancing sealing and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sewage cleaning tank assembly and a sweeping robot base station. The sewage cleaning tank assembly comprises a tank body, a cover body and a sewage discharging module. The box body is provided with a clear water cavity and a filtering cavity, and openings of the clear water cavity and the filtering cavity face the same side. The cover body is detachably connected with the box body and is used for covering the openings of the clear water cavity and the filtering cavity. The filtering cavity is used for containing the sewage discharging module, and the sewage discharging module comprises an upper shell, a containing part, a sewage discharging pipe, a pump body and a bottom shell. The filtering cavity is provided with a first sewage discharging connector and a first sewage inlet connector. The containing part is provided with a second sewage discharging connector and a second sewage inlet connector, the second sewage discharging connector is connected with the first sewage discharging connector, and the second sewage inlet connector is connected with the first sewage inlet connector. The sewage discharging module is simple in structure, the sewage discharging module can be installed in the filtering cavity of the sewage cleaning tank assembly through butt joint of the four connectors, and rapid and convenient disassembly and assembly of the sewage discharging module can be achieved without a complex installation structure.
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Description

Technical Field

[0001] This application relates to the field of robotic vacuum cleaner technology, and in particular to a wastewater tank assembly. Background Technology

[0002] In existing smart robotic vacuum cleaners on the market, the automatic water tank loading and unloading module is typically complex to install, making it difficult for users and requiring professional after-sales personnel for on-site installation. Originally designed to facilitate mop cleaning and water tank refilling, reducing the need for frequent emptying of wastewater and adding fresh water, the complex and difficult-to-disassemble automatic water tank modules on the market, while significantly freeing up user effort, make it challenging for users to clean the wastewater tank themselves. This can lead to unpleasant odors and, over time, the growth of bacteria and fungi, negatively impacting the user experience. Summary of the Invention

[0003] This application aims to provide a wastewater tank assembly to improve the technical problem that the wastewater tank module produces odors and easily breeds bacteria and fungi because users cannot disassemble and install the automatic upper and lower water tank structure module to clean the wastewater tank themselves.

[0004] In a first aspect, this application proposes a clean water tank assembly, including a tank body, a cover, and a sewage discharge module. The tank body is provided with a clean water chamber and a filter chamber, the openings of which face the same side. The cover is detachably connected to the tank body and covers the openings of the clean water chamber and the filter chamber. The filter chamber is used to house the sewage discharge module, which includes an upper shell, a receiving portion, a sewage discharge pipe, a pump body, and a bottom shell. The filter chamber is provided with a first sewage discharge port and a first sewage inlet port. The receiving portion is provided with a second sewage discharge port and a second sewage inlet port, the second sewage discharge port being connected to the first sewage discharge port and the second sewage inlet port being connected to the first sewage inlet port. One end of the sewage discharge pipe is connected to the second sewage discharge port, and the other end is connected to the pump body. The bottom shell is connected to the receiving portion, and the pump body is disposed between the receiving portion and the bottom shell, connecting the sewage discharge pipe to an external sewage discharge channel.

[0005] In the above solution, the openings of the clear water chamber and the filter chamber face the same side. During installation, the sewage discharge module can be directly placed in the filter chamber, and the second sewage discharge port can be directly connected to the first sewage discharge port, as well as the second sewage inlet port can be directly connected to the first sewage inlet port. Without the need for a complicated installation structure, users can quickly and easily disassemble and assemble the sewage discharge module by opening the water tank cover. This facilitates easier and faster cleaning of the sewage discharge module, thereby improving the problem of bacteria and germs easily growing inside the sewage discharge module.

[0006] In some embodiments, a first sealant is provided between the first drain port and the second drain port, and a second sealant is provided between the first inlet port and the second inlet port. The sealant not only enhances the sealing at the ports but also makes the connection more secure.

[0007] In some embodiments, the wastewater tank assembly further includes a wastewater filter element disposed in the receiving portion. The wastewater filter element has a filtration space, and the second wastewater inlet communicates with the filtration space. The filter element can filter larger solid substances in the wastewater, thus mitigating the problem of these substances clogging the inlet.

[0008] In some embodiments, the wastewater filter element has multiple filter holes communicating with the filtration space on its wall surface. The porous filter element has a simple structure, is easy to install, and the hole size can be adjusted to adapt to different wastewater conditions.

[0009] In some embodiments, the wastewater filter element has a first opening, which faces the same side as the openings of the clear water chamber and the filter chamber. The wastewater discharge module also includes a third sealant, which is disposed at the opening of the filter chamber. The upper shell has a second opening, through which the third sealant protrudes. The sealant enhances the sealing performance at the opening of the filter chamber. The openings in the filter element and the upper shell allow for easy removal of filtered solids.

[0010] In some embodiments, the upper shell includes a first snap-fit ​​and a second snap-fit. The first cavity portion has a first engaging groove and a second engaging groove. The first snap-fit ​​engages with the first engaging groove, and the second snap-fit ​​engages with the second engaging groove. This snap-fit ​​and engaging groove connection improves the stability of the connection between the upper shell and the receiving portion, while also providing a simple structure and easy disassembly.

[0011] In some embodiments, the receiving portion includes a first receiving cavity and a second receiving cavity, with a first partition disposed between the first receiving cavity and the second receiving cavity. The first receiving cavity has a protrusion, and the second drain port and the second inlet port are disposed on the protrusion. The protrusion facilitates the connection and disassembly of the ports.

[0012] In some embodiments, the clear water chamber is equipped with a first float. By setting the float, the water level in the clear water chamber can be observed, and the user can be reminded to control the water flow.

[0013] In some embodiments, the housing is provided with a second partition, which separates the clear water chamber from the filter chamber. The cover is provided with a third partition, which is positioned corresponding to the second partition, and when the cover is closed, the second partition and the third partition are in contact. By providing partitions, the sealing between the chambers can be improved.

[0014] Secondly, this application also proposes a robot vacuum cleaner base station, including a wastewater tank assembly as described in any of the embodiments of the first aspect above, and further including a water inlet pipe, an internal water inlet pipe, a cleaning component, an internal suction pipe, a water inlet pressure reducing component, a water supply pump, an internal air extraction pipe, an air pump, and a main control board. One end of the water inlet pipe is connected to an external water source, and the other end is connected to the water inlet pressure reducing component; one end of the internal water inlet pipe is connected to the water inlet pressure reducing component, and the other end is connected to the wastewater tank assembly. The internal water outlet pipe is connected to the water supply pump, the wastewater tank assembly, and the cleaning component; one end of the internal suction pipe is connected to the cleaning component, and the other end is connected to the wastewater tank assembly. One end of the internal air extraction pipe is connected to the receiving portion, and the other end is connected to the air pump. The main control board is disposed on the side panel of the wastewater tank.

[0015] Additional aspects and advantages of the embodiments of this application will be described, shown, or illustrated in part by way of implementation of the embodiments of this application in the following description. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are not intended to limit the embodiments, and elements having the same reference numerals in the drawings are designated as similar elements.

[0017] Figure 1 This is a schematic diagram of the structure of the clean water tank assembly in some embodiments of this application (the sewage discharge module is not placed in the filter chamber);

[0018] Figure 2 This is an exploded structural diagram of the sewage discharge module according to some embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the sewage discharge module according to some embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the structure of the sewage discharge module according to some embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the cavity of the clean water tank assembly according to some embodiments of this application;

[0022] Figure 6 This is a schematic diagram of the structure of a robot vacuum cleaner base station according to some embodiments of this application.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Cover; 12. Third partition;

[0025] 2. Housing; 21. Clear water chamber; 211. First float; 22. Filter chamber; 221. First drain port; 222. First inlet port; 223. First sealant; 23. Second partition;

[0026] 3. Sewage discharge module; 31. Upper shell; 311. First buckle; 312. Second buckle; 313. Second opening; 32. Receiving part; 321. Second sewage discharge interface; 322. Second sewage inlet interface; 323. Second sealant; 324. First snap-fit ​​groove; 325. Second snap-fit ​​groove; 326. Protrusion; 327. First receiving cavity; 328. Second receiving cavity; 33. Sewage pipe; 34. Pump body; 35. Bottom shell; 36. Sewage filter element; 361. First opening; 362. Third sealant;

[0027] 10. Wastewater tank assembly; 20. Water inlet pipe; 30. Water inlet pressure reducing assembly; 40. Internal water inlet pipe; 50. Internal suction pipe; 60. Water supply pump; 70. Internal water outlet pipe; 80. Air pump; 90. Internal air extraction pipe; 100. Main control board. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0029] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0030] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0031] The technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0032] Firstly, this application proposes a wastewater tank assembly 10, please refer to... Figure 1 The wastewater tank assembly 10 includes a cover 1, a tank 2, and a sewage discharge module 3.

[0033] Specifically, please refer to Figure 1 The housing 2 is equipped with a clean water chamber 21 and a filter chamber 22. The openings of the clean water chamber 21 and the filter chamber 22 face the same side; for example, both the clean water chamber 21 and the filter chamber 22 have openings at their tops. The cover 1 is detachably connected to the housing 2 and is used to cover the openings of the clean water chamber 21 and the filter chamber 22. The filter chamber 22 is used to accommodate the sewage discharge module 3. It is understood that the detachable connection is mainly for easy opening of the cover 1; a hinged connection or a snap-fit ​​connection can be used here.

[0034] Please refer to Figure 2 and Figure 3 The sewage discharge module 3 includes an upper shell 31, a receiving part 32, a sewage discharge pipe 33, a pump body 34, and a bottom shell 35. The filter chamber 22 is provided with a first sewage discharge port 221 and a first sewage inlet port 222.

[0035] Please refer to Figure 4 The receiving part 32 is provided with a second sewage discharge port 321 and a second sewage inlet port 322. The second sewage discharge port 321 is connected to the first sewage discharge port 221, and the second sewage inlet port 322 is connected to the first sewage inlet port 222. One end of the sewage pipe 33 is connected to the second sewage discharge port 321, and the other end is connected to the pump body 34.

[0036] The bottom shell 35 is connected to the receiving part 32, and the pump body 34 is disposed between the receiving part 32 and the bottom shell 35. The pump body 34 is connected to the sewage pipe 33 and the external sewage channel.

[0037] In the above scheme, the openings of the clear water chamber 21 and the filter chamber 22 face the same side. During installation, the sewage discharge module 3 can be directly placed in the filter chamber 22, and the second sewage discharge port 321 can be directly connected to the first sewage discharge port 221, and the second sewage inlet port 322 can be directly connected to the first sewage inlet port 222. Without the need for a complicated installation structure, users can quickly and conveniently disassemble and assemble the sewage discharge module 3 by directly opening the water tank cover 1. This facilitates easier and faster cleaning of the sewage discharge module 3, thereby improving the problem of bacteria and germs easily growing inside the sewage discharge module 3.

[0038] In some embodiments, please refer to Figure 4 and Figure 5 A first sealant 223 is provided between the first drain port 221 and the second drain port 321, and a second sealant 323 is provided between the first inlet port 222 and the second inlet port 322. The use of the first sealant 223 and the second sealant 323 not only enhances the sealing performance at the drain port and the inlet port, but also makes the connection between the drain port and the inlet port more secure. The first sealant 223 can be made of at least one of the following materials: nitrile rubber, silicone rubber, EPDM rubber, fluororubber, or polytetrafluoroethylene. Each material has good corrosion resistance and high-temperature resistance, which helps to extend the service life of the first sealant 223.

[0039] In some embodiments, please refer to Figure 2 The wastewater tank assembly 10 also includes a wastewater filter element 36, which can be disposed in the receiving section 32. The wastewater filter element 36 can be square, round, or similar shapes, adapted to the shape of the receiving cavity 32. The wastewater filter element 36 encloses a filtration space, and the second wastewater inlet 322 communicates with the filtration space. Wastewater can enter the filtration space through the second wastewater inlet 322 and then be filtered by the wastewater filter element 36. It is understood that a wastewater inlet pipe can be provided to connect the second wastewater inlet 322 to the filtration space, or they can be directly connected. The filter element can filter larger solid substances in the wastewater, improving the problem of these substances clogging the inlet.

[0040] In some embodiments, please refer to Figure 2 The wastewater filter element 36 has multiple filter holes on its wall surface that communicate with the filtration space. The porous filter element has a simple structure, is easy to install, and the size of the holes can be adjusted to adapt to different wastewater conditions.

[0041] In some embodiments, please refer to Figure 2The wastewater filter element 36 has a first opening 361, which faces the same side as the openings of the clear water chamber 21 and the filter chamber 22. The wastewater discharge module 3 also includes a third sealant 362, which is located at the first opening 361. The upper shell 31 has a second opening 313 through which the third sealant 362 protrudes. The third sealant 362 enhances the sealing performance at the first opening 361. The first opening 361 and the second opening 313 at the wastewater filter element 36 and the upper shell 31 allow for easy cleaning of filtered solids. For example, when filtration time is prolonged or the wastewater volume is large, solids can easily clog the filter holes of the wastewater filter element 36, affecting filtration efficiency. Users can then easily and quickly clean the clogged material through the first opening 361 and the second opening 313.

[0042] In some embodiments, the receiving portion 32 includes a first receiving cavity 327 and a second receiving cavity 328, with a first partition (not shown) disposed between the first receiving cavity 327 and the second receiving cavity 328. The first receiving cavity 327 is provided with a protrusion 326, and a second drain port 321 and a second inlet port 322 are disposed on the protrusion 326. The protrusion 326 facilitates the connection between the second drain port 321 and the first drain port 221 and the second inlet port 322 and the first inlet port 222, and also facilitates disassembly.

[0043] In some embodiments, please refer to Figure 2 and Figure 3 The upper shell 31 includes a first snap fastener 311 and a second snap fastener 312; the first receiving cavity 327 has a first engaging groove 324 and a second engaging groove 325. The first snap fastener 311 engages with the first engaging groove 324, and the second snap fastener 312 engages with the second engaging groove 325. When the upper shell 31 is closed, the hook-shaped parts or other engaging parts of the first snap fastener 311 and the second snap fastener 312 are inserted into the grooves of the first engaging groove 324 and the second engaging groove 325, thus completing the engagement between the upper shell 31 and the first receiving cavity 327. When separating, the engaging parts of the first snap fastener 311 and the second snap fastener 312 are released from the grooves of the first engaging groove 324 and the second engaging groove 325, completing the separation. The snap fastener and engaging groove connection method can improve the stability of the connection between the upper shell 31 and the receiving part 32, and the snap fastener connection method has a simple structure and is easy to disassemble.

[0044] In some embodiments, please refer to Figure 5 The clear water chamber 21 is equipped with a first float 211. By setting the first float 211, the water level in the clear water chamber 21 can be observed, which can remind the user to control the water level.

[0045] In some embodiments, the housing 2 is provided with a second partition 23, which separates the clean water chamber 21 from the filter chamber 22. The cover 1 is provided with a third partition 12, which is positioned correspondingly to the second partition 23. When the cover 1 is closed, the second partition 23 and the third partition 12 are in contact. By providing the second partition 23 and the third partition 12, the sealing between the chambers can be improved.

[0046] In this application, the clean water chamber 21 of the clean water tank assembly 10 can store clean water. After the mop is cleaned with the cleaning device, the cleaned wastewater can be discharged into the sewage discharge module 3 in the filter chamber 22 through the suction pipe for filtration, and then discharged through the sewage discharge pipe 33.

[0047] Secondly, this application also proposes a base station for a robotic vacuum cleaner, please refer to... Figure 6 The robot vacuum base station includes a wastewater tank assembly 10 as described in any of the embodiments of the first aspect above. It also includes a water inlet pipe 20, an internal water inlet pipe 40, an internal water outlet pipe 70, a cleaning component (not shown), an internal suction pipe 50, a water inlet pressure reducing component 30, a water supply pump 60, an internal air extraction pipe 90, an air pump 80, and a main control board 100. One end of the water inlet pipe 20 is connected to an external water source, and the other end is connected to the water inlet pressure reducing component 30. One end of the internal water inlet pipe 40 is connected to the water inlet pressure reducing component 30, and the other end is connected to the wastewater tank assembly 10. The internal water outlet pipe 70 is connected to the water supply pump 60, the wastewater tank assembly 10, and the cleaning component. One end of the internal suction pipe 50 is connected to the cleaning component, and the other end is connected to the wastewater tank assembly 10. One end of the internal air extraction pipe 90 is connected to the receiving portion 32, and the other end is connected to the air pump 80.

[0048] Understandably, the internal air extraction pipe 90 can be directly connected to the receiving section 32, or it can be connected to the inside of the receiving section 32 through an air extraction interface and an air extraction pipe. The main control board 100 is located on the side panel of the clean water tank. In use, the main control board 100 can control the water supply pump 60 to introduce water from the clean water chamber 21 into the cleaning component through the internal water outlet pipe 70 to clean the robot vacuum cleaner's mop. After cleaning, the air pump 80 is started to extract the internal air from the receiving section 32, creating a negative pressure. Wastewater can then enter the sewage discharge module 3 through the internal sewage suction pipe 50 for filtration, and then the wastewater is discharged outward through the sewage discharge pipe 33.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these 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 clean-up water tank assembly characterized by, The sewage tank assembly comprises a box body, a cover body and a sewage discharging module; The box body is provided with a clean water cavity and a filter cavity, and the openings of the clean water cavity and the filter cavity are located on the same side; the cover body is detachably connected with the box body, and the cover body is used for covering the openings of the clean water cavity and the filter cavity; The filter cavity is used for accommodating the sewage discharging module, and the sewage discharging module comprises an upper shell, a containing part, a sewage discharging pipe, a pump body and a bottom shell; the filter cavity is provided with a first sewage discharging interface and a first sewage inlet interface; The containing part is provided with a second sewage discharging interface and a second sewage inlet interface, the second sewage discharging interface is connected with the first sewage discharging interface, and the second sewage inlet interface is connected with the first sewage inlet interface; one end of the sewage discharging pipe is connected with the second sewage discharging interface, and the other end is connected with the pump body; The bottom shell is connected with the containing part, the pump body is arranged between the containing part and the bottom shell, and the pump body is connected with the sewage discharging pipe and an external sewage discharging passage.

2. The clean-up water tank assembly of claim 1, wherein A first sealing glue is arranged between the first sewage discharging interface and the second sewage discharging interface, and a second sealing glue is arranged between the first sewage inlet interface and the second sewage inlet interface.

3. The clean-up water tank assembly of claim 1, wherein, The sewage tank assembly further comprises a sewage filter, which is arranged in the containing part; the sewage filter has a filter space, and the second sewage inlet interface communicates with the filter space.

4. The clean-up tank assembly of claim 3, wherein, A plurality of filter holes are formed in the wall surface of the sewage filter and communicate with the filter space.

5. The clean-up tank assembly of claim 4, wherein, The sewage filter is provided with a first opening, and the openings of the clean water cavity and the filter cavity are located on the same side; The sewage discharging module further comprises a third sealing glue, which is arranged at the opening of the filter cavity; The upper shell is provided with a second opening, and the third sealing glue is exposed from the second opening.

6. The clean-up water tank assembly of claim 1, wherein, The containing part comprises a first containing cavity and a second containing cavity, and a first partition plate is arranged between the first containing cavity and the second containing cavity; The first containing cavity is provided with a protruding part, and the second sewage discharging interface and the second sewage inlet interface are arranged on the protruding part.

7. The clean-up tank assembly of claim 6, wherein, The upper shell comprises a first buckle and a second buckle; the first containing cavity is provided with a first clamping groove and a second clamping groove; the first buckle is clamped with the first clamping groove, and the second buckle is clamped with the second clamping groove.

8. The clean-up tank assembly of claim 1, wherein, The clean water cavity is provided with a first floating object.

9. The clean-up tank assembly of claim 1, wherein, The box body is provided with a second partition plate, which is used for separating the clean water cavity and the filter cavity; The cover body is provided with a third partition plate, which is arranged in position correspondence with the second partition plate, and the second partition plate and the third partition plate are attached when the cover body is closed.

10. A base station of a robot sweeper, characterized in that, The sewage tank assembly comprises the sewage tank assembly according to claim 9; further comprising a water inlet pipe, an internal water inlet pipe, an internal water outlet pipe, a cleaning assembly, an internal sewage suction pipe, a water inlet pressure reducing assembly, a water supply pump, an internal air suction pipe, an air pump and a main control panel; One end of the water inlet pipe is connected with an external water source, and the other end is connected with the water inlet pressure reducing assembly; one end of the internal water inlet pipe is connected with the water inlet pressure reducing assembly, and the other end is connected with the sewage tank assembly; The internal water outlet pipe is connected to the water supply pump, the sewage water tank assembly and the cleaning assembly; one end of the internal sewage suction pipe is connected to the cleaning assembly, and the other end is connected to the sewage water tank assembly; One end of the internal air suction pipe is connected to the containing part, and the other end is connected to the air pump; The main control board is arranged on the side plate of the sewage water tank.