A water tank assembly, cleaning equipment and cleaning system

By incorporating an overflow structure and a one-way valve inside the water tank to control fluid flow, the problem of limited installation space for cleaning equipment is solved, resulting in more efficient space utilization and improved equipment stability.

CN224269245UActive Publication Date: 2026-05-26麦悦未来智能科技(苏州)有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
麦悦未来智能科技(苏州)有限公司
Filing Date
2025-07-01
Publication Date
2026-05-26

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Abstract

This disclosure provides a water tank assembly, a cleaning device, and a cleaning system. The water tank assembly is installed on the cleaning device and includes a water tank and an overflow structure. The water tank includes a receiving cavity. The overflow structure includes an overflow pipe and a first overflow port and a second overflow port respectively disposed at both ends of the overflow pipe. The first overflow port and at least a portion of the overflow pipe are disposed within the receiving cavity, and the first overflow port is located at a predetermined overflow height within the receiving cavity. The second overflow port is positioned below the first overflow port and connects to the outside of the receiving cavity. By placing the overflow structure within the receiving cavity inside the water tank, the encroachment of traditional external overflow structure designs on the compact installation space of the cleaning device is avoided, reducing the overall volume and space occupation of the water tank assembly and improving the overall layout optimization of the cleaning device. Simultaneously, the overflow structure offers greater design freedom and fewer spatial constraints.
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Description

Technical Field

[0001] This disclosure relates to the field of cleaning equipment technology, and in particular to a water tank assembly, cleaning equipment and cleaning system. Background Technology

[0002] Currently, cleaning equipment typically includes a water tank assembly to fill the cleaning module with water, achieving a good cleaning effect. The water tank assembly generally features an overflow structure. During the liquid filling process, air in the tank is expelled through the overflow structure, ensuring stable internal pressure. When the water level exceeds the set level, excess liquid is discharged through the overflow structure, thus achieving the drainage function. Given the limited installation space of the cleaning equipment itself, how to incorporate an overflow structure within this compact space is a problem that urgently needs to be solved. Utility Model Content

[0003] This disclosure provides a water tank assembly, cleaning equipment, and cleaning system to solve the technical problem of how to reasonably arrange the overflow structure within the compact installation space of the cleaning equipment body.

[0004] This disclosure provides a water tank assembly installed in a cleaning device. The water tank assembly includes a water tank and an overflow structure. The water tank includes a receiving cavity. The overflow structure includes an overflow pipe and a first overflow port and a second overflow port respectively disposed at both ends of the overflow pipe. The first overflow port and at least a portion of the overflow pipe are disposed within the receiving cavity, and the first overflow port is located at a predetermined overflow height within the receiving cavity. The second overflow port is positioned below the first overflow port and connects to the outside of the receiving cavity.

[0005] In the above technical solution, the overflow structure is placed inside the receiving cavity of the water tank, avoiding the encroachment of traditional external overflow structure designs on the compact installation space of the cleaning equipment body. This reduces the overall volume and space occupation of the water tank components, improving the overall layout optimization of the cleaning equipment. Simultaneously, the larger internal space of the receiving cavity allows for greater freedom in the overflow structure layout design with fewer spatial constraints. Furthermore, the built-in overflow structure eliminates concerns about damage to the overflow structure causing malfunctions in other components of the cleaning equipment, thereby enhancing the stability and reliability of the cleaning equipment.

[0006] In one embodiment of this disclosure, the water tank further includes a fluid switch, which is disposed on the overflow pipe to control the flow of fluid in the overflow pipe.

[0007] In the above technical solution, the fluid switch is installed on the overflow pipe between the first overflow port and the second overflow port, which can effectively control the flow of fluid in the overflow pipe and ensure that the liquid in the water tank will not leak during the operation, rotation or transfer of the cleaning equipment.

[0008] In one embodiment of this disclosure, the fluid switch is a one-way valve.

[0009] In the above technical solution, the check valve automatically controls its on / off state based on fluid pressure, eliminating the need for external power or control wiring within the water tank. This simplifies the design and operation of the fluid on / off switch within the water tank and reduces the design, manufacturing, and maintenance costs of the water tank components. Furthermore, the check valve's automatic fluid pressure control ensures that during the operation, rotation, or transfer of the cleaning equipment, the pressure difference between the liquid stored inside the tank and the outside is relatively small, preventing leakage. Conversely, during the process of adding liquid to the tank, the pressure difference between the tank and the outside continuously increases, and the check valve automatically switches on and off based on this pressure difference to achieve an overflow function.

[0010] In one embodiment of this disclosure, the overflow height is set to match the height of the top wall of the receiving cavity, and the opening direction of the first overflow port faces the top wall of the receiving cavity.

[0011] In the above technical solution, by setting the overflow height to match the height of the top wall of the receiving cavity, the internal space of the water tank can be fully utilized, thereby maximizing the storage capacity of the water tank. Simultaneously, further optimizing the opening direction of the first overflow port further reduces the ineffective space at the top of the water tank, avoiding waste of the effective storage capacity of the receiving cavity due to an unreasonable overflow port position. It also reduces the problem of leakage caused by liquid sloshing within the water tank during cleaning equipment operation.

[0012] In one embodiment of this disclosure, the water tank further includes a recess, which is formed on the top wall of the receiving cavity, and the first overflow port is located in the recess.

[0013] In the above technical solution, a localized recess or thinning area is provided on the top wall of the water tank to maximize the tank's volume, allowing it to store more liquid without increasing its external dimensions. This further reduces the ineffective space at the top of the tank, preventing wasted storage capacity due to improper overflow port placement.

[0014] In one embodiment of this disclosure, the overflow structure further includes an adapter, and the overflow pipe includes a first pipe section and a second pipe section. One end of the first pipe section is provided with a first overflow port, and the other end of the first pipe section is connected to the second pipe section by the adapter, so that the first overflow port is located at a set overflow height of the receiving cavity.

[0015] In the above technical solution, the overflow structure is designed as a segmented plug-in structure, which simplifies the installation process of the overflow structure in the receiving cavity, adapts to the irregular box structure of the water tank, reduces the difficulty of installing and laying out the overflow structure in the receiving cavity, and enhances the flexibility and adaptability of installation. At the same time, the design of connecting the overflow pipe through the adapter allows for reasonable adjustment of the position of the first overflow port, optimizes the effective storage volume of the receiving cavity, and ensures efficient utilization of the receiving cavity space.

[0016] In one embodiment of this disclosure, the adapter further includes a sealing ring disposed at the insertion connection of the first pipe segment and / or the second pipe segment of the adapter.

[0017] In the above technical solution, the sealing ring effectively prevents liquid leakage at the connection between the first and second pipe sections, thereby preventing liquid seepage and ensuring the overflow function of the overflow structure. Simultaneously, the elastic properties of the sealing ring enhance the connection stability at the plug-in joint, preventing loosening or detachment of the connection.

[0018] In one embodiment of this disclosure, the second overflow port is located at the bottom of the water tank.

[0019] In the above technical solution, the second overflow port is located at the bottom of the water tank, which allows the overflowing liquid to fall to the ground as quickly as possible. This not only speeds up the liquid discharge but also reduces the risk of damage or malfunction to other components of the cleaning equipment that may be caused by the liquid during the discharge process.

[0020] A second aspect of this disclosure also provides a cleaning device that includes a water tank assembly according to any of the above claims.

[0021] In the above technical solution, the cleaning equipment utilizes the aforementioned water tank assembly, which effectively reduces the installation space occupied by the water tank assembly. The compact water tank assembly design allows for a more rational layout of other components within the cleaning equipment, improving the overall space utilization rate and reducing installation space waste caused by excessive water tank assembly space occupation, thus optimizing the overall layout of the cleaning equipment. This also reduces the risk of cleaning equipment malfunction due to liquid leakage, improving the stability and reliability of the cleaning equipment.

[0022] A third aspect of this disclosure also provides a cleaning system, which includes the cleaning equipment described above and a base station adapted to the cleaning equipment described above.

[0023] In the above technical solution, by adopting the aforementioned cleaning equipment, the overall layout is more compact, reducing space occupation. This not only improves the space utilization rate of the cleaning equipment itself but also makes the cleaning equipment more flexible in its cooperation with base stations, reducing the space requirements of the base stations.

[0024] The beneficial effects of this disclosure are as follows: This disclosure proposes a water tank assembly, cleaning equipment, and cleaning system. In this water tank assembly, the overflow structure is set inside the receiving cavity of the water tank, avoiding the encroachment of traditional external overflow structure designs on the compact installation space of the cleaning equipment body, reducing the overall volume and space occupation of the water tank assembly, and improving the optimization of the overall layout of the cleaning equipment. At the same time, the internal space of the receiving cavity is larger, allowing for greater freedom in the layout design of the overflow structure and less spatial constraint. Furthermore, the built-in overflow structure eliminates concerns that damage to the overflow structure may cause malfunctions in other components of the cleaning equipment, thereby improving the stability and reliability of the cleaning equipment. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the water tank assembly structure in one embodiment of the present disclosure;

[0028] Figure 2 This is a schematic diagram of the exploded structure of a water tank assembly in one embodiment of the present disclosure. Figure 1 ;

[0029] Figure 3 This is a schematic diagram of the exploded structure of a water tank assembly in one embodiment of the present disclosure. Figure 2 ;

[0030] Figure 4 This is a schematic diagram of the first pipe segment and its connection structure in one embodiment of this disclosure;

[0031] Figure 5 yes Figure 4 A magnified structural diagram at point A;

[0032] Figure 6 This is a schematic diagram of the second pipe segment and its connection structure in one embodiment of this disclosure;

[0033] Figure 7 This is a schematic diagram of the exploded structure of the second pipe segment and its connection in one embodiment of this disclosure;

[0034] Figure 8 This is a top view of the water tank assembly structure in one embodiment of this disclosure.

[0035] The attached figures are labeled as follows:

[0036] 10. Water tank assembly; 20. Inlet pump; 30. Outlet pump; 100. Water tank; 101. Top cover; 102. Bottom cover; 110. Receiving cavity; 120. Recess; 130. Inlet; 140. Outlet; 200. Overflow structure; 210. Overflow pipe; 211. First pipe section; 2111. Rigid pipe section; 2112. First flexible pipe section; 2113. Second flexible pipe section; 212. Second pipe section; 220. First overflow port; 230. Second overflow port; 240. Adapter; 241. Sealing ring; 250. Fluid switch. Detailed Implementation

[0037] The following specific examples illustrate the implementation of this disclosure. Those skilled in the art can easily understand other advantages and effects of this disclosure from the content disclosed in this specification. This disclosure can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this disclosure. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this disclosure. The drawings only show components related to this disclosure and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0039] Numerous details are explored in the following description to provide a more thorough explanation of embodiments of the present disclosure. However, it will be apparent to those skilled in the art that embodiments of the present disclosure may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present disclosure.

[0040] Currently, the overflow structure in water tank assemblies is usually located on the outside of the water tank body. An overflow port is opened on the water tank, and the overflow port is connected to other parts of the cleaning equipment body through a connecting water pipe or guide structure located on the outside of the water tank, thereby expelling excess air and liquid in the water tank to achieve the function of ventilation and overflow. However, the overflow structure located on the outside of the water tank will take up the compact installation space of the cleaning equipment body, limiting the optimization of the overall layout of the cleaning equipment.

[0041] Therefore, please see Figures 1 to 8 This disclosure provides a water tank assembly, cleaning equipment, and a cleaning system, such as Figure 1As shown, the water tank assembly 10 is installed on a cleaning device and is used to inject liquid into the cleaning module of the cleaning device to achieve a better cleaning effect. The cleaning device can be a sweeping robot, a floor scrubber, a vacuum cleaner, etc., but is not limited to these. Taking a sweeping robot as an example, the water tank assembly 10 includes a water tank 100 and an overflow structure 200. The water tank 100 includes a receiving cavity 110, which serves as a storage chamber for the liquid. The receiving cavity 110 is typically a closed chamber structure. The liquid in the receiving cavity 110 can be water, cleaning fluid, or disinfectant solution, etc., but is not limited to these. In this embodiment, water is used as an example of the liquid stored in the receiving cavity 110. The structure of the water tank 100 is not limited; the water tank 100 can be a semi-open split structure or an integral open-top structure. Specifically, in this embodiment, the water tank 100 adopts a split structure design, including an upper cover 101 and a lower cover 102. The upper cover 101 and the lower cover 102 are sealed together to form a closed receiving cavity 110. The water tank 100 formed by the closed upper cover 101 and the lower cover 102 allows for the convenient installation of components such as an overflow structure 200 and a liquid level detector within the receiving cavity 110.

[0042] Please see Figure 2The overflow structure 200 includes an overflow pipe 210 and a first overflow port 220 and a second overflow port 230 respectively disposed at both ends of the overflow pipe 210. The first overflow port 220 serves as an overflow inlet and is disposed inside the receiving cavity 110 to connect the overflow pipe 210 and the receiving cavity 110, facilitating the overflow of gas or water from the receiving cavity 110 to the outside of the receiving cavity 110 and maintaining the pressure balance inside and outside the receiving cavity 110. At least a portion of the overflow pipe 210 is disposed inside the receiving cavity 110 to reduce the space occupied by the overflow pipe 210 outside the water tank 100. The proportion of the overflow pipe 210 inside the receiving cavity 110 and the proportion outside the receiving cavity 110 are not limited. It is possible that most of the overflow pipe 210 is inside the receiving cavity 110, or that the entire pipe body of the overflow pipe 210 is located inside the receiving cavity 110, to further reduce the space occupied by the overflow pipe 210 outside the water tank 100 and avoid bending or difficult installation of the overflow pipe 210. The first overflow port 220 is set at the set overflow height of the receiving cavity 110. The set overflow height of the receiving cavity 110 is not limited. With the height direction of the cleaning equipment as the reference direction, the set overflow height can be located at any height position from the middle to the top of the receiving cavity 110. For example, the set overflow height is the height corresponding to the middle, upper middle or top of the receiving cavity 110. The second overflow port 230 serves as an overflow outlet. The second overflow port 230 is positioned lower than the first overflow port 220 and connects to the outside of the receiving cavity 110. When the water level in the receiving cavity 110 reaches or exceeds the set overflow height of the first overflow port 220, the water in the water tank 100 flows out of the receiving cavity 110 through the first overflow port 220, overflow pipe 210, and second overflow port 230, thereby realizing the overflow function of the overflow structure 200. The location of the second overflow port 230 is not limited; it can be located on the lower part of the side wall of the water tank 100, on the bottom wall of the water tank 100, or on a small portion of the overflow pipe 210 extending out of the wall of the water tank 100, but is not limited thereto. The material of the overflow pipe 210 is not limited; it can be a rigid plastic pipe, a metal pipe, or a flexible hose.

[0043] In this water tank assembly 10, the main body of the overflow structure 200 is located within the receiving cavity 110 inside the water tank 100. This avoids the encroachment of traditional external overflow structure designs on the compact installation space of the cleaning equipment, reducing the overall volume and space occupation of the water tank assembly 10 and optimizing the overall layout of the cleaning equipment. Simultaneously, the larger internal space of the receiving cavity 110 allows for greater design freedom and less spatial constraint on the overflow structure 200. Furthermore, most of the overflow pipe 210 of the overflow structure 200 is built into the receiving cavity 110. Even if the overflow pipe 210 is damaged, causing liquid leakage during the overflow process, the leaked liquid will simply flow back into the receiving cavity 110, eliminating concerns about malfunctions to other components or structures external to the water tank 100, thereby improving the stability and reliability of the cleaning equipment.

[0044] Please see Figure 3 In one embodiment of this disclosure, the water tank 100 further includes a fluid switch 250, which is disposed on the overflow pipe 210 to control the flow of fluid in the overflow pipe 210. The fluid switch 250 is disposed on the overflow pipe 210 between the first overflow port 220 and the second overflow port 230, effectively controlling the flow of fluid in the overflow pipe 210. This ensures that water in the water tank 100 will not leak during the operation, rotation, or transfer of the cleaning equipment, thereby improving the safety and reliability of the cleaning equipment. The type of fluid switch 250 is not limited; it can be a one-way valve, a solenoid valve, a pinch valve, or other commonly used valve structures for controlling the flow of fluid in a pipeline, but is not limited thereto.

[0045] In one embodiment of this disclosure, the fluid on / off switch 250 is a one-way valve. The one-way valve automatically controls its on / off state based on fluid pressure, eliminating the need for external power or control wiring within the water tank 100. This simplifies the design and operation of the fluid on / off switch 250 within the water tank 100 and reduces the design, manufacturing, and maintenance costs of the water tank assembly 10. Utilizing the one-way valve's automatic on / off control characteristic based on fluid pressure, the pressure difference between the liquid stored in the water tank 100 and the atmospheric pressure outside the water tank 100 is small during the operation, rotation, or transfer of the cleaning equipment, thus ensuring no water leakage. However, during the process of adding water to the water tank 100, the pressure difference between the inside and outside of the water tank 100 continuously increases. When the pressure difference exceeds the pressure control threshold of the one-way valve, the one-way valve automatically opens based on the pressure difference, allowing water in the receiving cavity 110 to overflow out of the receiving cavity 110.

[0046] Please see Figure 2In one embodiment of this disclosure, the overflow height is set to match the height of the top wall of the receiving cavity 110, and the opening direction of the first overflow port 220 faces the top wall of the receiving cavity 110. Specifically, the overflow height is the position of the first overflow port 220 in the receiving cavity 110. Along the height direction of the cleaning equipment, since the water tank 100 is usually an irregular shape, that is, the upper part of the water tank 100 is an uneven non-planar structure, and the top wall of the receiving cavity 110 is the inner wall of the highest point of the cleaning equipment in the height direction, the distance between the first overflow port 220 and the inner wall of the highest point can be 0.5mm, 0.8mm or 1mm, etc., but is not limited to this, as long as the water in the water tank 100 can enter the overflow pipe 210 through the gap between the first overflow port 220 and the inner wall of the highest point. By setting the overflow height to match the height of the top wall of the receiving cavity 110, overflow can be made from the gap between the first overflow port 220 and the top wall of the receiving cavity 110, ensuring full utilization of the space inside the receiving cavity 110 of the water tank 100 and maximizing its storage capacity. Simultaneously, the opening direction of the first overflow port 220 is further optimized. The opening direction of the first overflow port 220 faces the top wall, meaning the opening section of the first overflow port 220 is on a horizontal plane. Compared to an opening section on a vertical plane, this reduces the impact of the opening size of the first overflow port 220 in the height direction of the cleaning equipment and the diameter of the overflow pipe 210, further minimizing the ineffective space at the top of the receiving cavity 110 and preventing waste of the effective storage capacity of the receiving cavity 110 due to an unreasonable position of the first overflow port 220. It also reduces the problem of water sloshing and leakage in the water tank 100 during operation of the cleaning equipment, lowering the probability of water entering the overflow pipe 210.

[0047] Please see Figure 4 and Figure 5In one embodiment of this disclosure, the water tank 100 further includes a recess 120, which is formed on the top wall of the receiving cavity 110, and the first overflow port 220 is located within the recess 120. That is, the cavity formed by the recess 120 is a protruding cavity protruding from the top surface of the receiving cavity 110 and communicating with the receiving cavity 110. Specifically, the recess 120 can be a groove structure formed on the top wall of the upper cover 101, with the opening of the groove facing the receiving cavity 110 and communicating with it. The recess 120 can also be a thinned area of ​​the cover 101 during design. In the height direction of the cleaning device, the recess 120 is located at the top of the receiving cavity 110, and the protruding cavity corresponding to the recess 120 is an extended cavity of the receiving cavity 110. By setting a local recess or local thinning area on the top wall of the water tank 100, the water tank 100 can maximize the effective storage volume of the receiving cavity 110 without increasing the external size, further reducing the ineffective space at the top of the receiving cavity 110, and avoiding the waste of the effective storage volume of the receiving cavity 110 due to the unreasonable setting of the first overflow port 220.

[0048] Please see Figure 6 and Figure 7In one embodiment of this disclosure, the overflow structure 200 further includes an adapter 240. The overflow pipe 210 includes a first pipe section 211 and a second pipe section 212. One end of the first pipe section 211 is provided with a first overflow port 220, and the other end of the first pipe section 211 is connected to the second pipe section 212 via the adapter 240, so that the first overflow port 220 is located at a set overflow height of the receiving cavity 110. The first pipe section 211 and the second pipe section 212 can be made of rigid pipe material, or they can be a combination of rigid pipe and flexible pipe. Specifically, in this embodiment, the first pipe section 211 includes a rigid pipe part 2111, a first flexible pipe part 2112, and a second flexible pipe part 2113. The rigid pipe part 2111 and the top wall of the receiving cavity 110 are integrally formed, that is, the rigid pipe part 2111 and the top cover 101 are integrally formed. The top end of the rigid pipe part 2111 is provided with a first overflow port 220, and the first overflow port 220 is located in the recess 120. The first flexible hose section 2112 is plugged into the rigid hose section 2111. The first flexible hose section 2112 and the second flexible hose section 2113 are plugged into each other via a fluid switch 250. The second flexible hose section 2113 is plugged into an adapter 240, which is made of rigid plastic or metal. The second pipe section 212 is made of rigid pipe. The upper end of the second pipe section 212 is plugged into the adapter 240, and the lower end extends out of the receiving cavity 110. The second pipe section 212 and the lower cover 102 are an integral structure. The second overflow port 230 is provided on the second pipe section 212, thus serving as the overflow outlet of the receiving cavity 110. The overflow structure 200 is designed as a segmented plug-in structure, which simplifies the installation process of the overflow structure 200 in the receiving cavity 110, adapts to the irregular box structure of the water tank 100, reduces the difficulty of installing the overflow structure 200 in the receiving cavity 110, and enhances the flexibility and adaptability of the installation. Meanwhile, the design of the overflow pipe 210 connected by the adapter 240 can reasonably adjust the position of the first overflow port 220, optimize the effective storage volume of the water tank 100's receiving cavity 110, and ensure the efficient use of the space of the receiving cavity 110.

[0049] Please see Figure 7In one embodiment of this disclosure, the adapter 240 further includes a sealing ring 241, which is disposed at the insertion connection of the first pipe segment 211 and / or the second pipe segment 212 at the adapter 240. Specifically, when both the first pipe segment 211 and the second pipe segment 212 are made of rigid material, to ensure the stability of the insertion connection between the first pipe segment 211 and the second pipe segment 212 and the adapter 240 and to prevent leakage, sealing rings 241 are respectively disposed at the insertion ends of the first pipe segment 211 and the second pipe segment 212. In this embodiment, the first pipe segment 211 adopts a flexible tube structure and is inserted into the adapter 240, while the second pipe segment 212 adopts a rigid tube structure, with the sealing ring 241 fixedly installed at one end of the second pipe segment 212. The sealing ring 241 can effectively prevent liquid leakage at the connection between the first pipe segment 211 and the second pipe segment 212, thereby preventing liquid leakage and ensuring the overflow function of the overflow structure 200. Meanwhile, the elastic properties of the sealing ring 241 enhance the connection stability at the plug-in connection, preventing the connection from becoming loose or falling off.

[0050] Please see Figure 3 In one embodiment of this disclosure, the second overflow port 230 is disposed at the lower part of the water tank 100. Specifically, the second overflow port 230 is located at the lower part of the cleaning equipment. The placement of the second overflow port 230 at the lower part of the water tank 100 allows the overflowing water to fall to the ground as quickly as possible, not only accelerating the water discharge speed but also reducing the risk of damage or malfunction to other components of the cleaning equipment that may occur during the discharge process.

[0051] Please see Figure 8 In one embodiment of this disclosure, the water tank assembly 10 further includes an inlet 130 and an outlet 140. The inlet 130 is located on one side wall of the water tank 100 and connects to the interior of the receiving cavity 110. The inlet 130 is connected to the water inlet pump 20 of the cleaning equipment via a pipeline, and water is injected into the receiving cavity 110 of the water tank 100 by the water inlet pump 20. The outlet 140 is located on the other side wall of the water tank 100 and is connected to the water outlet pump 30 of the cleaning equipment via a pipeline. The water outlet pump 30 delivers water from the water tank 100 to the cleaning component of the cleaning equipment through the outlet 140 via a pipeline.

[0052] A second aspect of this disclosure also provides a cleaning device including a water tank assembly 10 from any of the above embodiments. By using the water tank assembly 10 from any of the above embodiments, the cleaning device can effectively reduce the space occupied by the water tank assembly 10 within the device body. The compact design of the water tank assembly 10 allows for a more rational layout of other components within the cleaning device, improving the overall space utilization of the cleaning device, reducing the waste of installation space caused by excessive space occupation of the water tank assembly 10, and optimizing the overall layout of the cleaning device. It also reduces the risk of cleaning device malfunction due to liquid leakage, improving the stability and reliability of the cleaning device. It should be noted that the cleaning device in this disclosure may also include conventional modular components of existing cleaning devices such as a sweeping module, a vacuuming module, a navigation module, a drive module, and a control module, which will not be described in detail here.

[0053] A third aspect of this disclosure also provides a cleaning system comprising the aforementioned cleaning equipment and a base station adapted to the cleaning equipment. By employing the aforementioned cleaning equipment, the overall layout is more compact, reducing space occupation. This not only improves the space utilization rate of the cleaning equipment itself but also makes the cleaning equipment more flexible in its cooperation with the base station, reducing the space requirements of the base station.

[0054] The water tank assembly, cleaning equipment, and cleaning system disclosed herein feature an overflow structure housed within an internal cavity of the water tank. This avoids the encroachment of traditional external overflow structures on the compact installation space of the cleaning equipment, reducing the overall volume and space occupied by the water tank assembly and optimizing the overall layout of the cleaning equipment. Furthermore, the larger internal space of the cavity allows for greater design freedom and less spatial constraint on the overflow structure. The built-in overflow structure also eliminates concerns about damage to other components of the cleaning equipment causing malfunctions, thus improving the stability and reliability of the cleaning equipment. This addresses the technical problem of externally mounted overflow structures encroaching on the compact installation space of the cleaning equipment and limiting the optimization of its overall layout.

[0055] The above embodiments are merely illustrative of the principles and effects of this disclosure and are not intended to limit this disclosure. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this disclosure. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this disclosure should still be covered by the claims of this disclosure.

Claims

1. A water tank assembly installed in a cleaning apparatus, characterized in that, include: A water tank (100) including a receiving cavity (110); An overflow structure (200) includes an overflow pipe (210) and a first overflow port (220) and a second overflow port (230) respectively disposed at both ends of the overflow pipe (210); The first overflow port (220) and at least part of the overflow pipe (210) are disposed in the receiving cavity (110), and the first overflow port (220) is disposed at a set overflow height of the receiving cavity (110), and the second overflow port (230) is located below the first overflow port (220) and communicates with the outside of the receiving cavity (110).

2. The water tank assembly of claim 1, wherein, The water tank (100) also includes a fluid switch (250), which is disposed on the overflow pipe (210) to control the flow of fluid in the overflow pipe (210).

3. The water tank assembly of claim 2, wherein, The fluid switch (250) is a one-way valve.

4. The water tank assembly of claim 1, wherein, The set overflow height is adapted to the height of the top wall of the receiving cavity (110), and the opening direction of the first overflow port (220) faces the top wall of the receiving cavity (110).

5. The water tank assembly according to claim 1, characterized in that, The water tank (100) also includes a recess (120) which is formed on the top wall of the receiving cavity (110), and the first overflow port (220) is located in the recess (120).

6. The water tank assembly according to claim 1, characterized in that, The overflow structure (200) further includes an adapter (240), and the overflow pipe (210) includes a first pipe section (211) and a second pipe section (212). One end of the first pipe section (211) is provided with the first overflow port (220), and the other end of the first pipe section (211) is connected to the second pipe section (212) through the adapter (240) so that the first overflow port (220) is located at the set overflow height of the receiving cavity (110).

7. The water tank assembly according to claim 6, characterized in that, The adapter (240) further includes a sealing ring (241), which is disposed at the insertion connection of the first pipe segment (211) and / or the second pipe segment (212) of the adapter (240).

8. The water tank assembly according to claim 1, characterized in that, The second overflow port (230) is located at the lower part of the water tank (100).

9. A cleaning device, characterized in that, The water tank assembly (10) includes any one of claims 1 to 8.

10. A cleaning system, characterized in that, It includes the cleaning equipment as described in claim 9 and a base station adapted to the cleaning equipment.