Automatic cleaning device for pool

Abstract

The utility model provides an automatic pool cleaning device which is used for cleaning a pool and comprises a bottom water inlet, a water outlet, a water pump and a filtering device, the water pump is used for guiding water flow to enter from the bottom water inlet and be discharged to the outside from the water outlet after passing through the filtering device, and the automatic pool cleaning device further comprises a first working bin and a second working bin, the first working bin is located on the front portion of the automatic pool cleaning device and comprises a communicating structure, and the communicating structure is used for communicating the interior of the first working bin with the outside; the second working bin is located on the rear portion of the automatic pool cleaning device and used for containing the water pump, the bottom water inlet, the water outlet and the filtering device; and the first working bin is not communicated with the second working bin.

Description

Technical Field

[0001] This application relates to the field of cleaning device technology, and in particular to an automatic cleaning device for water tanks. Background Technology

[0002] With the increasing popularity of swimming pools and significant advancements in robotics technology, more and more consumers are opting for automated pool cleaning systems to perform their pool cleaning tasks. These systems offer various cleaning modes, such as bottom mode, wall mode, surface mode, and waterline mode. To efficiently and effectively remove dirt from different locations, the system needs to switch between these modes depending on the specific situation. Currently, the internal structure of these systems is typically a single unit. When switching between underwater and above-water modes in wall mode, the system's stability is often significantly affected. When switching from underwater to above-water mode, water inside the cleaning unit drains through gaps, while outside air enters. However, when the automatic pool cleaning device switches from above-water to underwater mode (i.e., when it re-enters the water), the air inside the device's chamber may not be expelled in time. This results in significant buoyancy within the chamber, making it difficult for the device to quickly submerge, or even causing it to float on the surface. Consequently, this affects the device's efficiency and cleaning effectiveness. Therefore, there is an urgent need to develop a novel approach to circumvent these problems, improve the air-liquid exchange efficiency during mode switching, and ensure that the automatic pool cleaning device can switch efficiently and stably between different modes. Summary of the Invention

[0003] This application addresses the shortcomings of the prior art by providing an automatic water tank cleaning device for cleaning water tanks. The device includes a bottom inlet, a drain outlet, a water pump, and a filter. The water pump guides water flow from the bottom inlet, through the filter, and out through the drain outlet. The automatic water tank cleaning device further includes: a first working compartment located at the front of the device, the first working compartment including a connecting structure for connecting the interior of the first working compartment to the outside; and a second working compartment located at the rear of the device, the second working compartment for accommodating the water pump, the bottom inlet, the drain outlet, and the filter. The first and second working compartments are not connected.

[0004] Furthermore, when the automatic water tank cleaning device is in the first working state and at least part of the first working chamber extends out of the water surface, outside air can enter the interior of the first working chamber through the connecting structure; when the automatic water tank cleaning device is in the second working state and the first working chamber is below the water surface, outside water can enter the interior of the first working chamber through the connecting structure.

[0005] Furthermore, there are multiple connecting structures, and each of the multiple connecting structures can connect the interior of the first working chamber with the outside world.

[0006] Furthermore, the connecting structure is located in the area of ​​the first working compartment closer to the front of the automatic water tank cleaning device.

[0007] Furthermore, the first working state includes the automatic pool cleaning device cleaning the pool wall or waterline when the head of the device is exposed above the water surface, and the second working state includes the automatic pool cleaning device cleaning the pool wall or waterline when the head of the device is below the water surface.

[0008] Furthermore, the size of the first working chamber is related to the height above the water surface set by the automatic pool cleaning device during pool wall cleaning or waterline cleaning.

[0009] Furthermore, the communication structure includes a communication hole, a valve structure, a gate structure, or a grid opening structure.

[0010] Furthermore, a filter assembly is provided on the connecting structure, which is used to block impurities from entering the first working chamber.

[0011] Furthermore, the automatic water tank cleaning device also includes a partition component for separating the first working compartment and the second working compartment.

[0012] Furthermore, the automatic water tank cleaning device is equipped with a water outlet detection device, which is used to detect the water outlet status of the automatic water tank cleaning device.

[0013] The embodiments described in this application have the following beneficial effects:

[0014] The automatic water tank cleaning device provided in this application includes a first working compartment and a second working compartment, which are not connected. A connecting structure in the first working compartment connects its interior to the outside. The second working compartment houses a water pump, a bottom inlet, a drain, and a filter. The first working compartment connects the interior of the automatic water tank cleaning device to the outside, preventing problems such as low cleaning efficiency or poor stability due to water level changes during operation, ensuring the device can efficiently and stably switch between different positions. The centralized layout of the second working compartment, housing the water pump, bottom inlet, drain, and filter, optimizes the water flow path and improves the cleaning effect. Furthermore, the functional separation of the two compartments allows for more targeted maintenance, thereby reducing maintenance costs and time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are merely exemplary embodiments of this application.

[0016] Figure 1 This is a schematic diagram illustrating the structure of an automatic water tank cleaning device according to an embodiment of this application.

[0017] Reference numerals: 10-Automatic cleaning device for water tank; 101-Water pump; 102-First working compartment; 1021-Connecting structure; 103-Second working compartment; 104-Separation component. Detailed Implementation

[0018] The technical solutions in this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0019] This application provides an automatic pool cleaning device 10, which is capable of cleaning pools. The pool is, for example, a pool-shaped structure. The pool-shaped structure can be a swimming pool, a water storage tank, a spa pool, a water tank, a water storage trough, etc. The automatic pool cleaning device 10 can be a device such as an automatic cleaning device or a pool cleaning robot, capable of cleaning the pool-shaped structure. The automatic pool cleaning device 10 includes a bottom inlet, a drain outlet, a water pump 101, and a filter device. The water pump 101 guides water flow from the bottom inlet into the automatic pool cleaning device 10, and after passing through the filter device, discharges it to the outside through the drain outlet. Specifically, the water pump 101 is the core power component of the entire automatic pool cleaning device 10. By pumping water, it draws water from the pool into the automatic pool cleaning device 10 from the bottom inlet and filters it through the filter device to remove dirt from the water flow. The filtered clean water flow is discharged from the automatic pool cleaning device 10 through the drain outlet. This application does not limit the specific presentation of the automatic pool cleaning device 10 or the pool-shaped structure, as long as the principle of this application can be achieved. In the following description, unless otherwise specified, a robot will be used as an example of the automatic pool cleaning device 10, and a swimming pool will be used as an example of a pool or pool-shaped structure. In the following description, unless otherwise specified, the terms "pool bottom," "pool bottom surface," and "pool base" all refer to the bottom surface of the swimming pool.

[0020] The automatic water tank cleaning device 10 of this application will be described in detail below with reference to the accompanying drawings. Figure 1 A schematic diagram of an automatic water tank cleaning device 10 according to an embodiment of this application is shown. The automatic water tank cleaning device 10 includes: a first working chamber 102 and a second working chamber 103. The following will be combined with... Figure 1 The first working compartment 102 and the second working compartment 103 are described in detail.

[0021] The first working compartment 102 is located at the front of the automatic water tank cleaning device 10. The first working compartment 102 includes a connecting structure 1021, which is used to connect the interior of the first working compartment 102 with the outside.

[0022] The second working chamber 103 is located at the rear of the automatic water tank cleaning device 10. The second working chamber 103 is used to accommodate the water pump 101, the bottom water inlet, the drain outlet and the filter device; wherein, the first working chamber 102 and the second working chamber 103 are not connected.

[0023] For example, the first working compartment 102 is located at the front of the robot, that is, at the head position of the robot's body. In other words, if the robot moves in the direction its head points, the first working compartment 102 is at the very front of the robot in the direction of movement. The first working compartment 102 has a certain internal space that can be used to contain water and air. The compartment body of the first working compartment 102 has a certain strength to provide support and protection for the components and space inside the first working compartment 102. The first working compartment 102 can be made of plastic, for example.

[0024] A connecting structure 1021 is disposed on the first working chamber 102, and the connecting structure 1021 enables communication between the first working chamber 102 and the outside world. Specifically, the connecting structure 1021 can be disposed on the chamber wall of the first working chamber 102. The connecting structure 1021 connects the internal space of the first working chamber 102 with the external environment. In other words, the connecting structure 1021 allows the exchange of air or water from the outside with the first working chamber 102, thereby enabling the robot to quickly and effectively adjust the amount of air and water in the first working chamber 102 when switching between above and below water during cleaning operations. This ensures that the robot's buoyancy matches the switching action between above and below water, avoiding problems such as robot instability or abnormal operation caused by the inability of air or water to be quickly expelled from the robot when switching between above and below water. It is understandable that the robot usually needs to switch positions between above and below water when cleaning the waterline of the pool wall and when cleaning the water surface. For example, when the robot is cleaning the waterline along the pool wall, its head can move from an underwater position to an above-water position. In this case, water in the first working chamber 102 can be discharged from the first working chamber 102 through the connecting structure 1021, and air can enter the first working chamber 102 through the connecting structure 1021. When the robot finishes cleaning the waterline along the pool wall, its head can move from an above-water position to an underwater position. In this case, air in the first working chamber 102 can be discharged from the first working chamber 102 through the connecting structure 1021, and water in the pool can enter the first working chamber 102 through the connecting structure 1021. Thus, during the robot's position switching between above and below water, water and air can freely and efficiently enter and exit the first working chamber 102, thereby adapting to the robot's position switching actions. The principle of the connecting structure 1021 will be explained below with specific examples.

[0025] The second working chamber 103 is located at the rear of the robot, for example, at the tail of the robot's body. In other words, if the robot moves in the direction its head points, the second working chamber 103 is located at the rear of the robot in the direction of movement. The second working chamber 103 is mainly used to house the robot's core components, including: a water pump 101, a bottom water inlet, a drain outlet, and a filter device. The water pump 101 drives the water flow, providing the power required for the robot to perform cleaning tasks; the bottom water inlet is usually located at the bottom of the robot and can suck in dirt in the robot's direction of travel; the drain outlet is used to discharge filtered water from inside the robot; and the filter device is used to filter dirt from the water flow. When the robot switches between above-water and underwater modes, the second working chamber 103 can always remain underwater, thereby avoiding interference from air and water flow on the above-mentioned components in the second working chamber 103, ensuring that the robot can perform cleaning tasks efficiently and stably.

[0026] There is no direct connection between the first working compartment 102 and the second working compartment 103. The first and second working compartments 102 and 103 perform different functions. The first working compartment 102, through a connecting structure 1021, ensures that air and water can quickly enter the first working compartment 102 during the robot's exit and entry into the water, thus adapting the robot's buoyancy to the exit and entry actions and ensuring the robot's posture stability. Simultaneously, the second working compartment 103 remains submerged, ensuring the stable operation of the robot's core components. This compartmentalized design optimizes the robot's operational performance, improves its cleaning effect and stability, and also facilitates maintenance and management. For example, if a component in one compartment malfunctions, only the compartment containing that component needs to be repaired or replaced.

[0027] When the automatic water tank cleaning device 10 is in the first working state and at least part of the first working chamber 102 extends out of the water surface, outside air can enter the interior of the first working chamber 102 through the connecting structure 1021; when the automatic water tank cleaning device 10 is in the second working state and the first working chamber 102 is below the water surface, outside water can enter the interior of the first working chamber 102 through the connecting structure 1021.

[0028] For example, Figure 1 A schematic diagram of the robot in its first working state is shown. (For example...) Figure 1As shown, the pool's sidewalls include the pool wall above the water surface and the pool wall below the water surface. When the robot performs cleaning tasks on the pool wall above the water surface or at the waterline, at least a portion of the robot will be exposed above the water surface. In other words, at least a portion of the robot's first working chamber 102 will be exposed above the water surface, meaning the robot is in its first working state. When the robot performs cleaning tasks on the pool wall below the water surface, the entire robot is below the water surface. In other words, the entire first working chamber 102 is below the water surface, meaning the robot is in its second working state. Specifically, when the robot is in its first working state, the robot's first working chamber 102 can directly contact the outside air through the connecting structure 1021. That is, outside air can enter the interior of the first working chamber 102 through the connecting structure 1021. At the same time, the water inside the first working chamber 102 can also be discharged through the connecting structure 1021, ensuring that the robot can operate smoothly during the water exposure process and that its posture or function is not affected by any part of its structure being exposed above the water surface. When the robot is in the second working state, the robot can directly contact the water in the pool through the communication structure 1021 of the first working chamber 102. That is, the water in the pool can enter the interior of the first working chamber 102 through the communication structure 1021. At the same time, the air inside the first working chamber 102 can also be discharged through the communication structure 1021, so as to avoid the robot's sinking speed and attitude stability being affected by the air occupying the volume inside the chamber.

[0029] The first working state includes the automatic pool cleaning device 10 cleaning the pool wall or waterline when the head of the device is exposed above the water surface, and the second working state includes the automatic pool cleaning device 10 cleaning the pool wall or waterline when the head of the device is below the water surface.

[0030] For example, such as Figure 1 As shown, when the robot is in its first working state, i.e., when it is performing cleaning tasks on the pool wall or the waterline, the robot needs to move on the pool wall (e.g., the pool wall above the water surface) or clean along the waterline, so that the robot's head is above the water surface during the movement. When the robot is in its second working state, i.e., when it is performing cleaning tasks on the pool wall or the waterline, the robot needs to move on the pool wall (e.g., the pool wall below the water surface) or move along the waterline below the water surface, so that the robot's head is below the water surface during the movement.

[0031] There are multiple connecting structures 1021, and each of the multiple connecting structures 1021 can connect the interior of the first working chamber 102 with the outside world.

[0032] For example, to improve the efficiency and reliability of connectivity and ensure that the first working chamber 102 can effectively exchange air and water with the outside world, multiple connectivity structures 1021 can be used. Each connectivity structure 1021 can have the same or similar structure and function, that is, it can connect the internal space of the first working chamber 102 with the external environment, so that the robot can achieve free and efficient exchange of air and water between the first working chamber 102 and the outside world through the connectivity structures 1021 when it is in the first working state and the second working state. At the same time, by setting multiple connectivity structures 1021, the number of exchange channels between the first working chamber 102 and the outside world can be increased. For example, when the robot is in the first working state and its head is above the water surface, multiple connectivity structures 1021 can simultaneously introduce air, accelerating the air inflow speed; when the robot is in the second working state and its head is below the water surface, multiple connectivity structures 1021 can simultaneously introduce external water flow, quickly filling the space inside the chamber. Furthermore, even if one or more of the connecting structures 1021 fail to function properly due to dirt or blockage, the other connecting structures 1021 can still continue to function, ensuring that the connectivity between the first working chamber 102 and the outside world is not affected, thereby improving the reliability and stability of the robot.

[0033] The connecting structure 1021 is located in the area of ​​the first working chamber 102 closer to the front of the automatic water tank cleaning device 10.

[0034] For example, the connecting structures 1021 can be evenly distributed across various locations in the first working chamber 102, or they can be concentrated in an area closer to the front of the robot. This allows the robot to exchange with the outside environment more quickly when performing cleaning tasks on the pool wall or waterline, meaning the first working chamber 102 can adjust its buoyancy more quickly when the robot enters or exits the water. For instance, when the robot switches from the first working state to the second working state, the air in the first working chamber 102 can be quickly discharged through the connecting structures 1021 in the area closer to the front of the robot. This allows water from the pool to quickly enter the first working chamber 102 through connecting structures in other areas, preventing air residue inside the first working chamber 102 and thus improving the robot's stability and cleaning effect.

[0035] The communication structure 1021 includes a communication hole, a valve structure, a door structure, or a grid opening structure.

[0036] For example, the connecting structure 1021 may include structures such as connecting holes, valve structures, door structures, or grid opening structures. Specifically, connecting holes are typically holes opened in the outer shell of the first working chamber 102, allowing free exchange of air or water between the inside and outside of the first working chamber 102. The design of the connecting holes can be circular, square, or other shapes, and their size and number can be adjusted according to actual needs.

[0037] The valve structure is a device that controls the opening and closing of the connecting structure 1021. Through the valve structure, the exchange of media inside and outside the first working chamber 102 can be controlled. For example, in some cases, it may be necessary to close the connecting structure 1021 to prevent external water and air from entering the first working chamber 102, or in other cases, it may be necessary to open the connecting structure 1021 to allow air or water inside the first working chamber 102 to flow out. The valve structure can be manually controlled or automatically controlled, for example, by using sensors and controllers to achieve automatic opening and closing.

[0038] A door structure is a movable or rotatable component used to cover or open the connecting structure 1021. Similar to a valve structure, a door structure can also control the opening and closing of the connecting structure 1021, but it usually offers greater flexibility and adjustability. Door structures can be designed as sliding doors, revolving doors, etc., to adapt to different installation locations and usage requirements. A grid opening structure is a structure with multiple small holes or slits used to provide multiple communication channels between the inside and outside of the first working chamber 102. The grid opening structure not only enables media exchange but also acts as a filter, preventing larger contaminants from entering the interior of the first working chamber 102. The grid or slit design of the grid opening structure can be regular or irregular, depending on the communication and filtration requirements.

[0039] It should be noted that the above description of the connection structure 1021 is merely exemplary. Those skilled in the art can select the connection structure 1021 according to the actual situation, as long as it can achieve the technical principles of this application.

[0040] A filter assembly is provided on the connecting structure 1021, which is used to block impurities from entering the first working chamber 102.

[0041] For example, the filter assembly is installed at the inlet of the connecting structure 1021, that is, the filter assembly is installed in the channel connecting the first working chamber 102 to the outside world. In other words, all air or water entering the first working chamber 102 through the connecting structure 1021 will pass through the filter assembly. The filter assembly can use physical filter materials (e.g., metal mesh, plastic mesh, porous ceramic, sponge, etc.) or chemical filter materials (e.g., activated carbon, etc.) to prevent external dirt (e.g., dirt, particles, dust, large aquatic organisms, etc.) from entering the first working chamber 102, thereby avoiding damage to or interference with the normal operation of the robot's internal components (e.g., sensors, mechanical parts, etc.). The filter assembly can be fixed at the inlet of the connecting structure 1021, for example, by screws, clips, or welding. The filter assembly can also be detachably installed at the inlet of the connecting structure 1021, allowing users or maintenance personnel to clean or replace the filter assembly periodically to ensure filtration effectiveness.

[0042] The size of the first working chamber 102 is related to the height above the water surface set by the automatic pool cleaning device 10 when cleaning the pool wall or the waterline.

[0043] For example, the size of the first working chamber 102 can be determined based on the height above the water surface set when the robot performs cleaning tasks on the pool wall or waterline. Specifically, when the robot performs cleaning tasks on the pool wall or waterline, the robot's head may be partially or completely above the water surface. If the set height above the water surface is large, the size of the first working chamber 102 also needs to be increased accordingly to provide more space to accommodate more connecting structures 1021, thereby better realizing the exchange between the first working chamber 102 and the outside air or water flow. By increasing the size of the first working chamber 102, it can be ensured that the robot can efficiently and quickly exchange with the outside air or water flow through the connecting structures 1021 when the set height above the water surface is high, thereby achieving pressure balance inside the robot, ensuring the robot's posture stability, and providing greater flexibility for the robot's operation at different cleaning heights.

[0044] The automatic water tank cleaning device 10 also includes a separating component 104, which is used to separate the first working compartment 102 and the second working compartment 103.

[0045] For example, the partition assembly 104 can separate the first working compartment 102 and the second working compartment 103, ensuring that the two compartments do not interfere with each other during operation, i.e., preventing the flow of media (e.g., air, water, or impurities) between the two compartments. The partition assembly 104 can be made of a highly sealing material, such as rubber, silicone, or polytetrafluoroethylene (PTFE), to ensure good sealing performance. It can also be made of metal (e.g., aluminum alloy, stainless steel) or high-strength plastic materials to provide sufficient strength and rigidity for the robot. The partition assembly 104 can be fixed to the robot's shell by welding, screw connection, or snap-fit ​​connection, and installed between the first working compartment 102 and the second working compartment 103.

[0046] It should be noted that, in order to improve the separation effect, the separation component 104 can also adopt a multi-layer structure design. For example, sealing layers can be provided on both sides of the separation component 104 to enhance the sealing performance.

[0047] The automatic water tank cleaning device 10 is equipped with a water outlet detection device, which is used to detect the water outlet status of the automatic water tank cleaning device 10.

[0048] For example, the robot is also equipped with a water discharge detection device, which can detect the robot's water discharge status and position information during movement. Understandably, the placement of the water discharge detection device affects the sensitivity of detecting the height of the robot's body above the water surface. For instance, if the water discharge detection device is installed at the robot's head, it can detect the robot's water discharge status and position information when at least a portion of the robot's head is above the water surface while the robot is cleaning the waterline or the pool wall. If the water discharge detection device is installed in the middle of the robot, it can detect the robot's water discharge status and position information when at least a portion of the middle of the robot is above the water surface while cleaning the waterline or the pool wall. The height of the robot's body above the water surface corresponding to the water discharge detection device being installed at the robot's head is lower than the height corresponding to the water discharge detection device being installed in the middle of the robot; that is, the detection sensitivity of the water discharge detection device installed at the robot's head is higher than that installed in the middle. Those skilled in the art can set the position of the water discharge detection device as needed. The water discharge detection device may include a water discharge detection sensor, such as a pressure sensor, which determines whether the robot has reached the waterline by measuring changes in external pressure. Alternatively, the water discharge detection sensor may be a capacitive sensor, which determines the water level by measuring changes in the dielectric constant of the water. Those skilled in the art can select the appropriate water discharge detection sensor based on actual needs, as long as it achieves the technical principles of this application.

[0049] The automatic water tank cleaning device 10 provided in this application includes a first working chamber 102 and a second working chamber 103, which are not connected. A connecting structure 1021 in the first working chamber 102 connects the interior of the first working chamber 102 to the outside. The second working chamber 103 accommodates a water pump 101, a bottom inlet, a drain, and a filter. The first working chamber 102 connects the interior of the automatic water tank cleaning device 10 to the outside, preventing problems such as low cleaning efficiency or poor posture stability caused by water level changes during operation, ensuring that the automatic water tank cleaning device 10 can efficiently and stably switch between different positions. The second working chamber 103 accommodates the water pump 101, the bottom inlet, the drain, and the filter; the centralized layout of these components optimizes the water flow path and improves the cleaning effect of the automatic water tank cleaning device 10. Meanwhile, due to the functional separation of the two compartments, the maintenance of the automatic water tank cleaning device 10 is more targeted, thereby reducing the maintenance cost and maintenance time of the automatic water tank cleaning device 10.

[0050] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0053] In this application, unless otherwise stated, directional terms such as "up" and "down" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" are generally used in relation to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this application.

[0054] The above description is merely an exemplary embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope described in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic water tank cleaning device (10) for cleaning a water tank, comprising a bottom water inlet, a drain outlet, a water pump (101), and a filter device, wherein the water pump (101) guides water flow into the tank from the bottom water inlet, and after passing through the filter device, discharges water to the outside from the drain outlet, wherein... The automatic water tank cleaning device (10) also includes: A first working compartment (102) is located at the front of the automatic water tank cleaning device (10). The first working compartment (102) includes a connecting structure (1021) for communicating the interior of the first working compartment (102) with the outside world; and The second working compartment (103) is located at the rear of the automatic cleaning device (10) for the water tank. The second working compartment (103) is used to accommodate the water pump (101), the bottom water inlet, the drain outlet and the filter device. The first working compartment (102) and the second working compartment (103) are not connected.

2. The automatic water tank cleaning device (10) according to claim 1, wherein, When the automatic water tank cleaning device (10) is in the first working state and at least part of the first working chamber (102) extends out of the water surface, outside air can enter the interior of the first working chamber (102) through the connecting structure (1021); when the automatic water tank cleaning device (10) is in the second working state and the first working chamber (102) is below the water surface, outside water can enter the interior of the first working chamber (102) through the connecting structure (1021).

3. The automatic water tank cleaning device (10) according to claim 1, wherein, There are multiple connecting structures (1021), and each of the multiple connecting structures (1021) can connect the interior of the first working chamber (102) with the outside world.

4. The automatic water tank cleaning device (10) according to claim 1, wherein, The connecting structure (1021) is located in the area of ​​the first working chamber (102) closer to the front of the automatic water tank cleaning device (10).

5. The automatic water tank cleaning device (10) according to claim 2, wherein, The first working state includes when the automatic pool cleaning device (10) is cleaning the pool wall or the water line, the head of the machine body is exposed above the water surface. The second working state includes when the automatic pool cleaning device (10) is cleaning the pool wall or the water line, the head of the machine body is below the water surface.

6. The automatic water tank cleaning device (10) according to claim 1, wherein, The size of the first working chamber (102) is related to the height above the water surface set by the automatic pool cleaning device (10) when cleaning the pool wall or the waterline.

7. The automatic water tank cleaning device (10) according to any one of claims 1 to 6, wherein, The communication structure (1021) includes a communication hole, a valve structure, a gate structure, or a grid opening structure.

8. The automatic water tank cleaning device (10) according to claim 7, wherein, A filter assembly is provided on the connecting structure (1021) to block impurities from entering the first working chamber (102).

9. The automatic water tank cleaning device (10) according to claim 2, wherein, The automatic water tank cleaning device (10) further includes a partition component (104) for separating the first working compartment (102) and the second working compartment (103).

10. The automatic water tank cleaning device (10) according to claim 1, wherein, The automatic water tank cleaning device (10) is equipped with a water outlet detection device, which is used to detect the water outlet status of the automatic water tank cleaning device (10).

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