Automatic pool cleaning device and water leaving detection mechanism thereof

Abstract

The utility model discloses an automatic pool cleaning device and a water leaving detection mechanism thereof. The water leaving detection mechanism comprises a rotatable part which comprises a first end installed on the water pool automatic cleaning device and a second end capable of rotating relative to the first end; and the detection part is positioned near the rotatable part and is configured to detect the rotation of the rotatable part so as to determine the water leaving state of the automatic cleaning device for the water pool.

Description

Technical Field

[0001] This utility model relates to an automatic water tank cleaning device and its water removal detection mechanism in the field of automatic cleaning. Background Technology

[0002] For pool facilities such as swimming pools, automatic pool cleaning devices can be used for automatic or assisted cleaning. For example, automatic pool cleaning devices can be designed to operate their cleaning mechanisms while moving along the bottom, walls, and / or surface of the pool to filter pool water and absorb waste. Utility Model Content

[0003] A water-out detection mechanism for an automatic pool cleaning device is disclosed, comprising: a rotatable component including a first end mounted on the automatic pool cleaning device and a second end rotatable relative to the first end; and a detection component located near the rotatable component and configured to detect the rotation of the rotatable component in order to determine the water-out state of the automatic pool cleaning device.

[0004] In one or more embodiments, the rotatable component includes a curved extension arm connected between the first end and the second end.

[0005] In one or more embodiments, the rotatable component includes a buoyancy block configured to rotate the rotatable component under the action of buoyancy in water, so as to move at least a second end of the rotatable component away from or towards the detection component.

[0006] In one or more embodiments, the buoyancy block comprises at least one of a foam body and an airtight structure.

[0007] In one or more embodiments, the rotatable component includes a limiting structure located at the first end and configured to limit the rotation range of the rotatable component.

[0008] In one or more embodiments, the first end is mounted on a limiting structure of the automatic water tank cleaning device to limit the rotation range of the rotatable component.

[0009] In one or more embodiments, the upper limit of the rotation range includes 20 degrees to 80 degrees.

[0010] In one or more embodiments, both the rotatable component and the detection component are disposed inside the housing of the automatic water tank cleaning device.

[0011] In one or more embodiments, at least a portion of the rotatable component is disposed in a chamber on the left or right side of the automatic pool cleaning device and is in communication with the outside of the automatic pool cleaning device.

[0012] In one or more embodiments, the detection component is disposed in a sealed cavity in the automatic water tank cleaning device.

[0013] In one or more embodiments, the detection component includes a Hall sensor, and the rotatable component includes a magnetic block.

[0014] An automatic water tank cleaning device is also disclosed, comprising: a first water-free detection mechanism as described above, disposed on the left side of the automatic water tank cleaning device, for determining the water-free state of the left side of the automatic water tank cleaning device when the automatic water tank cleaning device is tilted to the right in a vertical posture; and a second water-free detection mechanism as described above, disposed on the right side of the automatic water tank cleaning device, for determining the water-free state of the right side of the automatic water tank cleaning device when the automatic water tank cleaning device is tilted to the left in a vertical posture.

[0015] In one or more embodiments, the automatic pool cleaning device further includes a controller configured to control the water pump power and / or walking mechanism of the automatic pool cleaning device based on a determined left or right water-free state. Attached Figure Description

[0016] Figure 1 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0017] Figure 2 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0018] Figure 3 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0019] Figure 4 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0020] Figure 5 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0021] Figure 6 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0022] Figure 7 An example of a water separation detection mechanism, which can be used in an automatic pool cleaning device, is illustrated schematically according to an embodiment of this disclosure.

[0023] Figure 8 An example of an automatic water tank cleaning device configured with a water separation detection mechanism, according to an embodiment of the present disclosure, is shown schematically.

[0024] Figure 9 An example of the configuration of the water separation detection mechanism in the automatic water tank cleaning device of the present disclosure is shown schematically.

[0025] Figure 10 An example of the configuration of the water separation detection mechanism in the automatic water tank cleaning device of the present disclosure is shown schematically.

[0026] Figure 11 An example of an automatic pool cleaning device based on the detection results of a water separation detection mechanism, according to an embodiment of the present disclosure, is illustrated.

[0027] Figure 12 An example of an automatic pool cleaning device based on the detection results of a water separation detection mechanism, according to an embodiment of the present disclosure, is illustrated. Detailed Implementation

[0028] The embodiments of this disclosure will now be described in detail with reference to the accompanying drawings. In the drawings, the same or equivalent parts are given the same reference numerals, and their descriptions are not repeated.

[0029] When an automatic pool cleaning device moves laterally along the pool wall to clean the waterline, the device may tilt to the left or right, or even one side may completely leave the water, affecting the cleaning effect or causing the device to fall off the pool wall. Therefore, during the process of the automatic pool cleaning device moving laterally along the pool wall to clean the waterline, it is necessary to monitor its posture or state and then control the water pump power and / or the walking mechanism to keep the device near the waterline without excessively leaving the water.

[0030] Figure 1 and Figure 2 An example of a water-free detection mechanism 100 for use in an automatic pool cleaning device is shown. The water-free detection mechanism 100 includes a rotatable part 110 and a detection part 120 located near the rotatable part 110, wherein the detection part 120 is configured to detect rotation of the rotatable part 110 in order to determine the water-free state of the automatic pool cleaning device.

[0031] For example, such water separation detection mechanisms 100 can be installed on the left side (e.g., the front left part inside the housing) and the right side (e.g., the front right part inside the housing) of the automatic pool cleaning device, respectively. Such water separation detection mechanisms 100 can be used to determine whether the left or right side of the automatic pool cleaning device is currently separated from the water, thereby controlling the water pump power and / or the walking mechanism of the automatic pool cleaning device so that the automatic pool cleaning device stays near the water line without being excessively separated from the water.

[0032] like Figure 1 and Figure 2 As shown, the rotatable component 110 can be configured as a frame structure that can rotate on one side, having a first end 111 and a second end 112, wherein the first end 111 is a fixed end or mounting end that can be connected to or installed on an automatic water tank cleaning device, and the second end 112 is a rotating end or free end that can rotate relative to the first end 111.

[0033] For example, the first end 111 of the rotatable component 110 can be connected to or mounted on the automatic pool cleaning device using any suitable hinge structure, such as a single hinge or a double hinge, so that the rotatable component 110, or in other words, the second end 112 of the rotatable component 110, can rotate about the rotation axis, i.e., the hinge axis 113 in the hinge structure. For example, the rotatable component 110 can be configured such that the center of mass of the rotatable component 110 is offset from the hinge axis 113 of the rotatable component 110.

[0034] The rotatable component 110 can be configured such that when the rotatable component 110 is in water, the upward buoyancy force on the rotatable component 110 in the water is sufficient to overcome the weight of the rotatable component 110 itself, so that the rotatable component 110 can rotate under the action of the upward buoyancy force in the water, for example, it can rotate at least a threshold angle (e.g., 15 degrees or 20 degrees, etc.).

[0035] For example, the rotatable component 110 may be configured using a lightweight material with a density lower than that of water, such as foam or lightweight plastic, and / or may be configured in any shape and / or volume suitable for or readily buoyant in water. For example, the rotatable component 110 may be configured as an airtight structure.

[0036] Additionally, for example, components such as buoyancy blocks can be disposed on the rotatable component 110 to increase buoyancy in water and / or reduce the overall average density of the rotatable component 110. The buoyancy blocks can be implemented using any suitable one or more materials or structures, such as foam or airtight structures, and at least a portion of the buoyancy blocks can be disposed inside and / or outside the rotatable component 110. By configuring buoyancy blocks, it becomes possible to implement the rotatable component 110 using a wider range of materials and / or structures.

[0037] When the rotatable part 110 is not in water, such as Figure 1 As shown, the rotatable component 110 can, for example, be in a first state under the action of its own gravity G.

[0038] When the rotatable component 110 is submerged in water, it can overcome the influence of its own weight G under the action of an upward buoyancy force F in the water, and start from the previous first state, for example, according to... Figure 2 The solid arrow A1 in the diagram indicates a rotation around hinge axis 113 exceeding the aforementioned threshold angle, and thus becomes... Figure 2 The second state is shown.

[0039] When the rotatable component 110 leaves the water again, the buoyancy force F acting on it in the water decreases and disappears when it is completely out of the water. During this process, the rotatable component 110, at least under its own weight G, returns to its previous second state, for example, according to... Figure 2 The solid arrow A2 in the diagram indicates the direction of rotation around hinge 113, and eventually returns to its original position. Figure 1 The first state is shown.

[0040] In some embodiments, the rotatable component 110 may be configured with a non-uniform density structure. For example, the density or weight of the portion of the rotatable component 110 near the second end 112 may be greater than the density or weight of the portion of the rotatable component 110 near the first end 111, or a counterweight may be provided at the second end 112, so that the rotatable component 110 can more smoothly return from the second state to the first state when it is removed from the water.

[0041] In addition, such as Figure 2 As shown, a limiting structure 130 can also be provided, and the first end 111 of the rotatable component 110 can be connected to or mounted on the limiting structure 130, thereby limiting the rotation amplitude of the rotatable component 110 (or, in other words, the second end 112 of the rotatable component 110), for example, controlling the rotatable component 110 (or, in other words, the second end 112 of the rotatable component 110) to rotate to one side, and the maximum angle of rotation does not exceed another threshold angle (e.g., 80 degrees or 90 degrees). Thus, it is possible to prevent the rotatable component 110 from rotating excessively under the action of buoyancy F and failing to smoothly return from the second state to the first state.

[0042] The limiting structure 130 can be configured to any suitable shape or structure, provided that the rotation amplitude and / or rotation direction of the rotatable member 110 (or, the second end 112 of the rotatable member 110) can be limited.

[0043] The limiting structure 130 may be part of the rotatable component 110, for example, as part of the first end 111 of the rotatable component 110, or it may be independent of the rotatable component 110 and configured as a component of the automatic pool cleaning device, or it may be integrally formed, for example, with part of the housing of the automatic pool cleaning device or part of a support structure of the automatic pool cleaning device.

[0044] The limiting structure 130 can be installed in any suitable location on the automatic pool cleaning device by any suitable means. For example, the limiting structure 130 can be detachably installed on the housing (e.g., the inner or outer wall of the housing) or a frame or support structure (e.g., a support plate) inside the automatic pool cleaning device by any suitable means such as snap-fit ​​connection or screw fixing, or it can be fixed to the housing (e.g., the inner or outer wall of the housing) or a frame or support structure (e.g., a support plate) inside the automatic pool cleaning device by any suitable means such as adhesive or integral molding.

[0045] At least a portion of the aforementioned hinge structure (e.g., the hinge seat portion) can be mounted on or as part of the limiting structure 130 by any suitable means. For example, at least a portion of the hinge structure (e.g., the hinge seat portion) can be detachably mounted on the limiting structure 130 by any suitable means such as snap-fit ​​connection or screw fixing, and can also be fixed on the limiting structure 130 by any suitable means such as adhesive or integral molding.

[0046] like Figure 1 and Figure 2 As shown, the detection component 120 can be configured near the rotatable component 110 and can be configured to detect the rotation of the rotatable component 110, such as including but not limited to detecting changes in the position, angle and / or distance of the second end 112 of the rotatable component 110 relative to the detection component 120, so as to further determine whether the rotatable component 110 or the water separation detection mechanism 100 is currently separated from the water.

[0047] For example, the detection component 120 may include a Hall sensor, and correspondingly, the rotatable component 110 may include any object, structure, and / or component, such as a magnet, that can be sensed by the Hall sensor for changes in position, angle, and / or distance. Such an object, structure, or component may be configured or mounted on the rotatable component 110 by any suitable means such as embedding, attaching, or coating. For example, an object, structure, and / or component, such as a magnetic block or magnetic sheet, that can be sensed by the Hall sensor for changes in position, angle, and / or distance may be configured or mounted at the second end 112 of the rotatable component 110 by suitable means such as embedding, attaching, or coating.

[0048] As described above, the rotatable component 110 can rotate under the influence of buoyancy F or its own weight G in the water. When the rotation of the rotatable component 110 brings the second end 112 closer to the Hall sensor of the detection component 120 (e.g., into the sensing range of the Hall sensor), the intervention switch of the Hall sensor can be turned on. Conversely, when the rotation of the rotatable component 110 moves the second end 112 away from the Hall sensor of the detection component 120 (e.g., out of the sensing range of the Hall sensor), the intervention switch of the Hall sensor can be turned off. Thus, the detection component 120 can determine the state of the rotatable component 110, and thereby determine whether the water-out detection mechanism 100 is currently in the water.

[0049] In different embodiments, the detection component 120 can be configured at any suitable location near the rotatable component 110.

[0050] For example, such as Figure 1 and Figure 2 As shown, the detection component 120 can be configured below the second end 113 of the rotatable component 110.

[0051] In such a situation, when the water detection device 100 is not in water, such as Figure 1 As shown, the rotatable component 110 can be in a first state under its own weight G, and the second end 112 of the rotatable component 110 is close to the detection component 120. At this time, the intervention switch of the Hall sensor of the detection component 120 is turned on, thereby determining that the water-free detection mechanism 100 is currently in a water-free state.

[0052] When the water detection unit 100 is in water, such as Figure 2 As shown, the rotatable component 110 can, for example, be in a second state under the influence of buoyancy F in the water, and the second end 112 of the rotatable component 110 is away from the detection component 120. At this time, the intervention switch of the Hall sensor of the detection component 120 is disconnected, thereby determining that the water separation detection mechanism 100 is currently in the water.

[0053] When the water separation detection mechanism 100 leaves the water again, the buoyancy force F on the rotatable component 110 decreases and disappears when the water separation detection mechanism 100 is completely out of the water. During this process, the rotatable component 110, at least under the action of its own weight G, returns to its original position. Figure 1 The first state is shown. At this time, the intervention switch of the Hall sensor of the detection component 120 is turned on again, thereby confirming that the water separation detection mechanism 100 is currently in the water separation state.

[0054] In other examples, such as Figure 3 and Figure 4As shown, the detection component 120 can be configured on the side of the second end 113 of the rotatable component 110.

[0055] In such a situation, when the water detection device 100 is not in water, such as Figure 3 As shown, the rotatable component 110 can be in a first state under its own weight G, and the second end 112 of the rotatable component 110 is away from the detection component 120. At this time, the intervention switch of the Hall sensor of the detection component 120 is turned off, thereby determining that the water-free detection mechanism 100 is currently in a water-free state.

[0056] When the water detection unit 100 is in water, such as Figure 4 As shown, the rotatable component 110 can, for example, be in a second state under the action of buoyancy F in the water, and the second end 112 of the rotatable component 110 is close to the detection component 120. At this time, the intervention switch of the Hall sensor of the detection component 120 is turned on, thereby determining that the water separation detection mechanism 100 is currently in the water.

[0057] When the water separation detection mechanism 100 leaves the water again, the buoyancy force F on the rotatable component 110 decreases and disappears when the water separation detection mechanism 100 is completely out of the water. During this process, the rotatable component 110, at least under the action of its own weight G, returns to its original position. Figure 3 The first state is shown. At this time, the intervention switch of the Hall sensor of the detection component 120 is disconnected again, thereby confirming that the water separation detection mechanism 100 is currently in the water separation state.

[0058] In another embodiment, the detection component 120 may also be configured above the second end 113 of the rotatable component 110 or at any other suitable location.

[0059] The shape and / or structure of the rotatable component 110, the position of the first end 111 and / or the second end 112 of the rotatable component 110 on the rotatable component 110, the relative positional relationship between the first end 111 and the second end 112, the mounting structure and / or mounting method of the first end 111, the shape and / or structure of the hinge structure, the shape and / or structure of the limiting structure 130, the connection method between the rotatable component 110 and the limiting structure 130, the initial posture of the rotatable component 110 after being connected to the limiting structure 130, the relative positional relationship between the rotatable component 110 and the detection component 120, the shape and / or structure of the detection component 120, etc., are not limited to the above examples, but can be varied according to the position and space used to configure the water separation detection mechanism 100 in the automatic water cleaning device, while conforming to the above principles.

[0060] Figure 5 and Figure 6Another example of the rotatable component 110 of the water separation detection mechanism 100 is shown.

[0061] In this example, the first end 111 of the rotatable component 110 is configured as at least one rotating arm, with a protrusion at one end of each rotating arm that can be used as a hinge pin 113.

[0062] The rotatable component 110 also includes a large frame or box 150 connecting the first end 111 and the second end 112. The frame or box 150 may be configured, for example, by a lightweight material with a density lower than that of water, such as foam or lightweight plastic, and / or may be configured as an airtight structure, or may embed or accommodate a buoyancy block.

[0063] Additionally, the rotatable component 110 also includes an extension arm 140 that directly or indirectly connects the first end 111 and the second end 112. This extension arm 140 may, for example, be configured in a curved shape. By configuring the extension arm 140, the detection component 120 can be positioned at a location relatively far from the second end 112 of the rotatable component 110.

[0064] In this example, such as Figure 5 and Figure 6 As shown, the limiting structure 130 includes a side plate portion 131 and a hinge portion 132 of a hinge structure.

[0065] The hinge portion 132 may be integrally formed with the side plate portion 131, or it may be mounted or fixed to the side plate portion 131 by any suitable means. A through hole is provided on the hinge portion 132 that matches the hinge pin 113 on the first end 111 of the rotatable member 110. The hinge pin 113 on the first end 111 of the rotatable member 110 is inserted into this through hole and can rotate within it, thereby forming a hinged structure.

[0066] The side plate portion 131 can extend in a vertical plane, and together with the bottom portion of the hinge portion 132, it defines the rotation range of the rotatable member 110, such that the rotatable member 110 can only rotate within the space between the side plate portion 131 and the bottom portion of the hinge portion 132, preventing the rotatable member 110 from rotating excessively under the influence of upward buoyancy in water or its own weight. For example, the height of the side plate portion 131, the length of the bottom portion of the hinge portion 132, and / or the angle between the side plate portion 131 and the bottom portion of the hinge portion 132 can be configured so that the upper limit of the rotation range can be any suitable value in the range of 20 degrees to 80 degrees, or a value greater than 80 degrees and less than 90 degrees.

[0067] Figure 7Another example of a rotatable component 110 of a water separation detection mechanism 100 is shown, wherein the rotatable component 110 may be configured as a box or frame extending from a first end 111 to a second end 112. For example, the rotatable component 110 may be hollow, and a buoyancy block may be disposed therein.

[0068] It should be understood that the configuration of the water separation detection mechanism 100 disclosed herein (including but not limited to the shape and / or structure of the rotatable component 110, the position of the first end 111 and / or the second end 112 of the rotatable component 110 on the rotatable component 110, the relative positional relationship between the first end 111 and the second end 112, the mounting structure and / or mounting method of the first end 111, the shape and / or structure of the hinge structure, the shape and / or structure of the limiting structure 130, the connection method between the rotatable component 110 and the limiting structure 130, the initial posture of the rotatable component 110 after being connected to the limiting structure 130, the relative positional relationship between the rotatable component 110 and the detection component 120, the shape and / or structure of the detection component 120, etc.) is not limited to the above examples, but can have various variations while conforming to the above principles.

[0069] like Figure 8 As shown, a water separation detection mechanism 100 can be arranged on the left side of the automatic water cleaning device 200, and another water separation detection mechanism 100 can be arranged on the right side of the automatic water cleaning device 200. At least a portion of the rotatable component 110 of the left water separation detection mechanism 100 can be arranged, for example, in a cavity in the front left part of the automatic water cleaning device 200 that is connected to the outside, and at least a portion of the rotatable component 110 of the right water separation detection mechanism 100 can be arranged, for example, in a cavity in the front right part of the automatic water cleaning device 200 that is connected to the outside.

[0070] Figure 9 and Figure 10 Examples of two water separation detection mechanisms 100 respectively configured on the left and right sides of the automatic water cleaning device 200 are shown.

[0071] In addition, such as Figure 8As shown, the automatic sink cleaning device 200 may also include a controller 210. The controller 210 may include any circuitry and / or modules with data processing and / or instruction execution capabilities, such as a central processing unit (CPU), graphics processing unit (GPU), or field-programmable gate array (FPGA), and is suitable for the automatic sink cleaning device 200. It may be configured, for example, to perform data processing and / or control related to the cleaning operations and / or other functions of the automatic sink cleaning device 200, based on programs stored in a memory (not shown) within the automatic sink cleaning device 200 and / or instructions from a control panel (not shown) or control terminal (not shown) of the automatic sink cleaning device 200.

[0072] like Figure 11 As shown, when the automatic pool cleaning device 200 tilts to the right near the waterline, causing at least a portion of its left side to be out of the water, the water-out detection mechanism 100 located on the left side of the automatic pool cleaning device 200 is out of the water, and its rotatable component 110 is in a first state under its own weight. Meanwhile, the water-out detection mechanism 100 located on the right side of the automatic pool cleaning device 200 remains in the water, and its rotatable component 110 is in a second state under the influence of buoyancy. Therefore, the controller 210 can determine that the automatic pool cleaning device 200 is currently in a state where at least a portion of its left side is out of the water. Then, for example, it can control the water pump power and / or the walking mechanism of the automatic pool cleaning device 200 to adjust its posture so that the automatic pool cleaning device 200 does not tilt excessively to the right near the waterline.

[0073] like Figure 12 As shown, when the automatic pool cleaning device 200 tilts to the left near the waterline, causing at least a portion of the right side of the device to be out of the water, the water-out detection mechanism 100 located on the right side of the device is out of the water, and its rotatable component 110 is in a first state under its own weight. Meanwhile, the water-out detection mechanism 100 located on the left side of the device remains in the water, and its rotatable component 110 is in a second state under the influence of buoyancy. Therefore, the controller 210 can determine that the automatic pool cleaning device 200 is currently in a state where at least a portion of the right side is out of the water, and can then, for example, control the water pump power and / or the walking mechanism of the device 200 to adjust its posture so that the device does not tilt excessively to the left near the waterline.

[0074] The basic principles of this disclosure have been described above with reference to embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this disclosure are merely examples and not limitations, and should not be considered as essential features of the various embodiments of this disclosure. Furthermore, the foregoing details are for illustrative and facilitative purposes only, and are not limitations; the foregoing details do not limit the scope of this disclosure to its implementation.

[0075] The block diagrams of the devices, automatic pool cleaning apparatus, equipment, and systems disclosed herein are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. In various embodiments, these devices, automatic pool cleaning apparatus, equipment, and systems may be connected, arranged, and configured in any suitable manner.

[0076] Additionally, words such as "including," "containing," and "having" in the text are open-ended terms meaning "including but not limited to," and can be used interchangeably. The words "or" and "and" used here refer to the words "and / or," and can be used interchangeably unless the context explicitly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to," and can be used interchangeably.

[0077] It should also be noted that in the automatic water tank cleaning apparatus, equipment, and method disclosed herein, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions to this disclosure.

[0078] In this article, modifiers without quantifiers, such as "first" and "second," are intended to distinguish different components / parts / circuits / modules / automatic pool cleaning devices / steps, rather than to emphasize order, positional relationship, importance, or priority. In contrast, modifiers with quantifiers, such as "first" and "second," can be used to emphasize the order, positional relationship, importance, or priority of different components / parts / circuits / modules / automatic pool cleaning devices / steps.

[0079] The above description is given for illustrative and descriptive purposes only. This description is not intended to limit the embodiments of this disclosure to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations therein.

Claims

1. A water pool automatic cleaning device's water-leaving detecting mechanism, characterized in that, The water separation detection mechanism includes: A rotatable component includes a buoyancy block, a first end mounted on the automatic cleaning device of the pool, and a second end rotatable relative to the first end. The buoyancy block is configured to rotate the rotatable component under the action of buoyancy in the water, so as to at least move the second end of the rotatable component away from or towards the detection component; and A detection component, located near the rotatable component, is configured to detect the rotation of the rotatable component in order to determine the water-out state of the automatic pool cleaning device.

2. The water leaving detection mechanism according to claim 1, wherein The rotatable component includes: A curved extension arm connects the first end and the second end.

3. The water leaving detection mechanism according to claim 1, wherein The buoyancy block includes at least one of a foam body and an airtight structure.

4. The water separation detection mechanism as described in claim 1, characterized in that, The rotatable component includes a limiting structure located at the first end and configured to limit the rotation range of the rotatable component; or The first end is mounted on the limiting structure of the automatic cleaning device for the water tank in order to limit the rotation range of the rotatable component.

5. The water leaving detection mechanism according to claim 4, wherein The upper limit of the rotation range includes 20 degrees to 80 degrees.

6. The water-leaving detection mechanism according to any one of claims 1 to 5, wherein At least a portion of the rotatable component is disposed in a chamber on the left or right side of the automatic pool cleaning device and is in communication with the outside of the automatic pool cleaning device, and / or at least a portion of the detection component is disposed in a sealed cavity in the automatic pool cleaning device.

7. The water exit detection mechanism according to any one of claims 1 to 5, wherein The detection component includes a Hall sensor, and the rotatable component includes a magnetic block.

8. An automatic pool cleaning device characterized by, The automatic water tank cleaning device includes: The water-free detection mechanism as described in any one of claims 1 to 7 is disposed on the left side of the automatic water cleaning device for determining the water-free state of the left side of the automatic water cleaning device when the automatic water cleaning device is tilted to the right in a vertical posture; and Another water-free detection mechanism, which has the same structure as the water-free detection mechanism and is arranged on the right side of the automatic water cleaning device, is used to determine the water-free state of the right side of the automatic water cleaning device when the automatic water cleaning device is tilted to the left in a vertical posture.

9. The pool cleaning apparatus of claim 8, wherein, The automatic water tank cleaning device also includes: The controller is configured to control the pump power and / or walking mechanism of the automatic pool cleaning device based on the determined left or right water-free state.

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