A filtration device for a pool robot and a pool robot

Abstract

The application relates to the technical field of pool cleaning equipment, in particular to a filtering device of a pool robot and the pool robot. The filtering device of the pool robot comprises a bottom wall, a filter bag, a support and a one-way valve, the circumferential wall of the support is used for providing an installation position for the filter bag, and the inside of the filter bag defines a filtering space of the filtering device. The quick disassembly of the filter bag is realized through the disassembly setting of the filter bag, the filter bag is suitable for a disposable filter bag, the filter bag does not need to be assembled to the filtering device again after cleaning, the maintainability of the pool robot is effectively improved, and the requirement of quick disassembly and cleaning-free is met.

Description

[0001] This application is based on and claims priority to patent application No. PCT / CN2025 / 107421, filed on July 7, 2025, entitled “Pool Robot and Pool Cleaning Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of pool cleaning equipment, and more particularly to a filtration device for a pool robot and a pool robot. Background Technology

[0003] With the increasing popularity of public and private backyard swimming pools, the need for water quality maintenance and waste removal is becoming more urgent. Traditional manual cleaning is inefficient, labor-intensive, and prone to missing trash from the bottom or corners of the pool. Therefore, pool cleaning robots have become the mainstream solution. Through autonomous movement, water suction filtration, or mechanical interception, they can collect various types of trash such as leaves, aquatic plants, and silt. Currently, most of these robots on the market rely on detachable filter baskets or perforated containers (i.e., the filtration device "trash basket") to collect trash. During operation, a water pump draws pool water containing trash into the robot body. The filter or perforated structure of the trash basket separates the trash from the water. The trapped trash is stored in the basket, while the filtered clean water is returned to the pool.

[0004] However, this collection solution centered around trash cans has significant drawbacks: once the trash cans are full, the robot must be manually removed from the pool, its outer casing disassembled to retrieve the trash cans, emptied, and then reassembled in the same manner. This process is cumbersome and time-consuming, and frequent disassembly and reassembly can wear down the machine's seals and increase the risk of leaks. Furthermore, sticky or fine-particle debris such as algae and mud easily adheres to the filter pores, inner walls, and corners of the trash cans. Because the trash cans are mostly three-dimensional structures with small filter pores, regular rinsing with water is insufficient to remove residue, and brushing can easily damage the filter. Long-term residue can also breed bacteria, leading to secondary water pollution. These problems increase maintenance costs, reduce user experience and cleaning efficiency, becoming a core pain point for technological upgrades. Utility Model Content

[0005] The purpose of this application is to overcome at least one of the shortcomings of the prior art and to provide a filtration device for a pool robot and a pool robot, so as to enable the pool robot to quickly disassemble and adapt to a disposable filter bag, thereby meeting the requirements of quick disassembly and assembly without cleaning.

[0006] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application.

[0007] According to one aspect of this application, a filtration device for a swimming pool robot is provided. The filtration device is connected to the inlet of the swimming pool robot and mainly includes: a bottom wall, a support member, and a filter bag. Along the height direction of the filtration device, a portion of the bottom wall extends away from the inlet to form a positioning part. The support member is detachably mounted on the positioning part, and the support member forms a passage for water to pass through. The circumferential wall of the support member is used to provide an installation position for the filter bag. The interior of the filter bag defines the filtration space of the filtration device, and water enters the filtration space sequentially through the inlet and the passage.

[0008] In this type of embodiment, the filtration device effectively solves the core pain points of traditional garbage baskets, such as cumbersome disassembly and assembly and the need for repeated cleaning. The above solution utilizes the detachable connection between the support component and the bottom wall positioning part, allowing for filter bag replacement simply by disassembling and assembling the support component, simplifying the operation and enabling rapid filter bag removal and installation.

[0009] Compared to traditional trash cans that require time to clean up residual algae and mud, the above solution allows the pool robot to be reused after completing the cleaning operation simply by removing the old filter bag and replacing it with a new one, without waiting for the cleaning process to finish. This enables the robot to resume operation in a short time, effectively improving overall cleaning efficiency.

[0010] The filter bag is designed for direct replacement, meeting the "no cleaning required" requirement and avoiding the problems of repeated rinsing of traditional trash cans and the need for brush cleaning of easily damaged filter screens. It's understandable that traditional trash cans are prone to corrosion due to prolonged contact with dirt, but this solution uses the filter bag as a consumable part for direct replacement, preventing dirt from adhering to the integrated filter unit for extended periods and reducing the risk of corrosion.

[0011] In summary, this design not only addresses the core shortcomings of traditional trash can assembly, disassembly, and cleaning, but also optimizes water quality protection through a one-way valve, significantly reducing maintenance costs, improving operational efficiency and cleaning reliability, and comprehensively enhancing the performance of the pool robot, thus meeting the core needs of technological upgrades.

[0012] In some example embodiments of this application, based on the aforementioned scheme, the filtering device of the pool robot further includes a first connector, which is disposed on the bottom wall and can move between a connected position and a retracted position along a first direction. A second connector is disposed on the circumferential wall of the support member. When the first connector moves to the connected position, the first connector and the second connector cooperate to connect, so that the support member is fixed relative to the bottom wall. When the first connector moves to the retracted position, the cooperation between the first connector and the second connector is released.

[0013] In this type of embodiment, the first connector only needs to be switched between the connection position and the retracted position in a single direction, without the need for additional disassembly of complex structures. When replacing the filter bag, the user only needs to switch the first connector to the retracted position to unlock it, and then quickly remove the support. After installing the new filter bag, the support is fitted into the positioning part and the first connector is pushed to the connection position to complete the fixation. The entire process is simple and improves the user's maintenance experience.

[0014] When the first connector moves to the connection position along the first direction, it can form a precise fit with the second connector on the circumferential wall of the support member. The mechanical locking structure firmly fixes the support member to the bottom wall, reducing the possibility of the filter bag falling off during dynamic operation, ensuring that the filtration space remains intact, preventing garbage from flowing back into the pool with the water, and further ensuring the stability of the cleaning effect.

[0015] In some example embodiments of this application, based on the aforementioned scheme, a groove is formed on the bottom wall, the groove extends along a first direction, and the first connector is slidably disposed in the groove.

[0016] In this type of embodiment, the directional extension structure of the chute along the first direction provides a clear motion trajectory constraint for the first connector, effectively avoiding the problem of the first connector deviating from the preset direction during the sliding process, ensuring that it can accurately slide to the "connection position" and "retreat position", thereby ensuring the positional accuracy of the first connector and the second connector when they dock, avoiding the failure of the fit due to misalignment, indirectly reducing the risk of the filter bag falling off during the cleaning operation, and improving the reliability of filtration.

[0017] The circumferential limiting effect of the slide groove on the first connector can restrict the circumferential rotation or shaking of the first connector during the sliding process, and avoid misalignment of the mating structure between the connector and the second connector due to the rotation of the connector. This ensures that both the "connection" operation during installation and the "retreat" operation during disassembly can be completed smoothly, reducing the occurrence of operational jams.

[0018] Meanwhile, the enveloping constraint of the groove can also disperse the force when the first connector slides, avoid local stress concentration that could lead to wear of the connector, extend the service life of the first connector and the bottom wall, indirectly reduce long-term maintenance costs, and the stable sliding process also makes it easier for users to operate when disassembling and assembling the support, further optimizing the overall user experience.

[0019] In some example embodiments of this application, based on the foregoing solution, the first connector includes a snap hole, and the second connector includes a snap fastener; the snap hole and the snap fastener form a snap-fit ​​engagement to fix the support member; and / or

[0020] The first connector includes a buckle, and the second connector includes a locking hole. The locking hole and the buckle form a snap-fit ​​engagement to fix the support.

[0021] In this type of embodiment, fixation is achieved through the snap-fit ​​of the locking holes and buckles, further optimizing the practicality and reliability of the filtration device. This fitting method eliminates the need for complex mechanical transmission components; fixation is accomplished simply by the corresponding engagement of the locking holes and buckles. Compared to screw locking, bolt connections, and other methods, it involves fewer parts and has a simpler structure.

[0022] The snap-fit ​​mechanism has a natural self-locking property. After the snap-fit ​​is inserted into the snap-fit ​​hole, a stable connection can be formed. It can effectively resist external forces caused by movement, water flow impact or body vibration during the cleaning operation of the pool robot, avoid relative displacement between the support and the bottom wall, and reduce the risk of filter bag falling off. Together with the circumferential limiting effect of the slide on the first connecting part, it forms a double guarantee for the positional stability of the filter bag during operation, ensuring the continuous effectiveness of garbage collection and filtration functions.

[0023] This type of connection has a low wear rate and is less prone to loosening during long-term use, thus extending the service life of the connectors and indirectly reducing the overall maintenance cost of the device. It further compensates for the shortcomings of traditional garbage baskets, such as easy disassembly and assembly and cumbersome maintenance.

[0024] In some example embodiments of this application, based on the aforementioned scheme, the first connector includes a first magnetic element, and the second connector includes a second magnetic element whose magnetic direction is opposite to that of the first magnetic element. The first connector moves to the connection position, and the first magnetic element and the second magnetic element magnetically engage to fix the support relative to the bottom wall.

[0025] In this type of embodiment, the magnetic attraction between the first magnetic component and the reverse second magnetic component does not require precise alignment or the application of specific force. When the first connector moves along the groove to the connection position, the magnetic attraction can automatically guide the two to fit together. This not only reduces the operational threshold for users during assembly, but also reduces the assembly time caused by manual alignment deviations, further improving the convenience of filter bag replacement and meeting the previous need for quick disassembly and assembly.

[0026] The magnetic attraction provides a continuous and uniform adsorption force. During the operation of the pool robot, even when faced with conditions such as body vibration and water flow impact, it can stably maintain the relative fixation between the support and the bottom wall, effectively avoiding the risk of displacement or detachment of the filter bag due to loose connection, and further enhancing the reliability of filtration.

[0027] The magnetic structure eliminates the frictional wear and deformation issues associated with mechanical clips, resulting in lower component wear, longer service life, and reduced maintenance and replacement costs over long-term use. Furthermore, the magnetic connection allows for easy disassembly by overcoming magnetic forces, eliminating the need to disassemble complex structures. This gentler operation minimizes damage to components and further optimizes the user's maintenance experience.

[0028] In some example embodiments of this application, based on the aforementioned scheme, the filtering device further includes a connector driving device, the driving end of which is connected to the first connector, and the first connector moves along a first direction between a connected position and a retracted position under the drive of the connector driving device.

[0029] In this type of embodiment, the connection drive device further enhances the automation level and ease of use of the filtration device, eliminating the need for user intervention and avoiding errors caused by manual operation. Furthermore, this design simplifies the user's operating process and reduces the overall time required for filter bag replacement.

[0030] In some example embodiments of this application, based on the foregoing scheme, the connector drive device includes a linear motor, a telescopic cylinder, or a servo cam assembly.

[0031] In this type of embodiment, the connector drive device uses a linear motor, telescopic cylinder, or servo cam assembly, which has high precision and reliability and is easy to control.

[0032] Linear motors can achieve linear drive without transmission backlash, strictly control the displacement distance and speed of the first connecting part according to the preset trajectory, and have a simple structure, few moving parts, low failure rate, and are not prone to mechanical wear after long-term use.

[0033] The air circuit components of the telescopic cylinder are waterproof, which can reduce the corrosive effects of the humid pool environment on the drive components and extend the maintenance cycle.

[0034] The servo cam assembly has a compact mechanical structure and strong vibration resistance, which can adapt to the bumpy environment when the robot moves in the pool and avoid the drive system from failing due to vibration.

[0035] All three drive devices mentioned above are mature industrial components with controllable procurement and replacement costs. They do not require complex customization, which not only ensures the long-term stable operation of the drive devices but also reduces the difficulty and cost of subsequent maintenance, further ensuring the continuity and stability of the pool robot's cleaning operations.

[0036] In some example embodiments of this application, based on the aforementioned scheme, the filtering device further includes an upper cover and a controller. The upper cover is provided with a detection device. After the upper cover is opened, the controller controls the connector drive device to move the first connector to the retracted position, thereby releasing the cooperation between the first connector and the second connector.

[0037] In this type of embodiment, the filter bag replacement process is optimized, making the automation experience more in line with the user's actual usage scenario. Specifically, this solution uses a detection device to sense the opening action of the top cover, and the controller directly links the drive device to automatically move the first connector to the retracted position and disengage from the second connector. The user does not need to operate the drive switch separately; simply opening the top cover is enough to simultaneously complete the disengagement, truly achieving the convenience of "opening the cover to remove the bag." This simplifies the manual intervention steps for filter bag replacement, and the operation logic is more in line with the user's operation.

[0038] The coordination between the detection device and the controller can prevent misoperation: the engagement is only triggered when the top cover is actually opened, preventing accidental unlocking of the connectors and loosening of the support due to accidental activation of the drive command during the cleaning operation, ensuring that the filter bag remains stable and fixed during the robot's patrol cleaning, and guaranteeing the continuity of garbage collection.

[0039] In addition, the above setup eliminates the need for users to manually adjust the connectors after opening the cover, reducing the frequency of hand contact with the internal structure of the device and lowering the risk of component wear or accidental user contact during operation.

[0040] In some example embodiments of this application, based on the aforementioned scheme, an annular groove is provided on the circumferential wall of the support member. After the filter bag is fitted onto the circumferential wall, it is fixed to the circumferential wall by an elastic member. After fixing, the filter bag is confined between the elastic member and the circumferential wall, and the elastic member is accommodated in the annular groove.

[0041] In this type of embodiment, the design of the annular groove and the elastic element further enhances the reliability of the filter bag fixation, while maintaining the advantage of ease of operation.

[0042] Users simply need to place the filter bag onto the circumferential wall of the support and embed the elastic element into the annular groove to complete the fixation. No tools are required, and the steps are simple and compatible with the convenient process of disassembling and installing the support, further shortening the filter bag replacement time. At the same time, the elastic element is confined within the annular groove, preventing excessive local tightening of the filter bag due to slippage, avoiding damage to the filter bag due to uneven force, extending the single service life of the filter bag, and indirectly reducing the user's consumable replacement costs.

[0043] Furthermore, the annular groove design enhances the overall stability of the filtration system. With the elastic element firmly fixed, the filter bag fits more tightly against the circumferential wall of the support, reducing the possibility of water leakage through the gap between the filter bag and the support. This ensures that all water containing debris passes through the filter bag, preventing unfiltered wastewater from flowing directly back into the pool. This complements the "anti-backflow" function of the one-way valve, guaranteeing the cleanliness of the pool water and comprehensively improving the filtration reliability of the equipment.

[0044] According to one aspect of this application, a pool robot is provided, which includes a filtration device as described above.

[0045] The pool robot, equipped with the aforementioned filtration device, features convenient assembly and disassembly of support components, a fixed annular groove, and a linked unlocking design for the top cover. Users can quickly replace the filter bag without disassembling the robot body, significantly reducing downtime for maintenance and solving the problems of cumbersome assembly and disassembly and the need for cleaning inherent in traditional models. At the same time, the operation process is simplified. The design of snap-fit ​​or magnetic fixation, anti-slip limit, and anti-backflow ensures the stability of the filter bag and prevents backflow of debris during dynamic operation, reducing malfunctions and lowering maintenance costs. In addition, the filter bag does not require repeated washing, avoiding the growth of bacteria from residual debris. Combined with its efficient interception capacity, it reduces secondary pollution of water quality, giving the robot both high-efficiency cleaning and water quality protection value, making it suitable for a wider range of scenarios.

[0046] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0047] 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.

[0048] Figure 1 A three-dimensional structural schematic diagram of a filtration device for a pool robot provided in one embodiment of this application is shown.

[0049] Figure 2 A three-dimensional structural schematic diagram of a swimming pool robot provided in one embodiment of this application is shown.

[0050] Figure 3 This paper shows a three-dimensional structural diagram of a swimming pool robot provided in one embodiment of the present application from a bottom-view perspective.

[0051] The above figures include the following reference numerals:

[0052] 10. Bottom wall; 11. Positioning part; 12. Slide groove; 13. Limiting post; 14. Guide post; 20. Filter bag; 30. Support component; 31. Circumferential wall; 32. Second connecting component; 321. Buckle; 40. One-way valve; 50. First connecting component; 51. Locking hole; 60. Connecting component drive device; 70. Top cover; 80. Liquid inlet; 90. Pool robot. Detailed Implementation

[0053] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0054] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0055] In the description of the embodiments of this application, the technical terms "first," "second," "third," "fourth," "fifth," etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0056] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0057] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0058] In the description of the embodiments of this application, the technical terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0059] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0060] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0061] Please see Figure 1 In some exemplary embodiments of this application, a filtration device for a swimming pool robot 90 is provided. The filtration device is connected to the inlet 80 of the swimming pool robot 90 and mainly includes: a bottom wall 10, a filter bag 20, and a support member 30. Along the height direction of the filtration device, a portion of the bottom wall 10 extends away from the inlet 80 to form a positioning part 11. The support member 30 is detachably mounted on the positioning part 11 and is arranged in a ring shape to form a passage for water to pass through. The circumferential wall 31 of the support member 30 is used to provide an installation position for the filter bag 20. The interior of the filter bag 20 defines the filtration space of the filtration device, and water enters the filtration space sequentially through the inlet and the passage.

[0062] For example, based on the above embodiments, the support member 30 is detachably connected to the positioning part 11. Therefore, when it is necessary to install or replace the filter bag 20, it is only necessary to remove the support member 30 from the positioning part 11. An annular groove is provided on the circumferential wall 31 of the support member 30. After the filter bag 20 is fitted onto the circumferential wall 31, it can be fixed to the circumferential wall 31 by an elastic element such as a rubber band. After fixing, the elastic element is accommodated in the annular groove, thereby reducing the possibility of slippage of the elastic element and improving the connection reliability of the filter bag 20. After installing the filter bag 20, the support member 30 is refitted onto the positioning part 11, thus achieving a fixed connection between the filter bag 20 and the bottom wall 10. The operation is simple and convenient.

[0063] It is understandable that the filter bag 20 refers to a bag-shaped structural component that can trap dirt while allowing fluid to pass through. After the pool robot 90 completes its cleaning operation, the filter bag 20 can be removed and replaced with a new one to complete the cleaning of the filtration device. This eliminates the need for frequent cleaning of the filtration device, saving time and allowing the pool robot 90 to resume cleaning operations quickly. Furthermore, it reduces the corrosion of the frame-type filter device by dirt, thus extending its service life.

[0064] The detachable design of the filter bag 20 not only shortens the maintenance time of the filtration device, but also avoids filter screen wear in the traditional structure, reduces cleaning time and cost, improves the user's operating experience, extends the service life of the core structure of the equipment, and reduces the user's long-term maintenance costs.

[0065] The filtration device of the pool robot 90 also includes a one-way valve 40, which is located in the passage of the support member 30 to prevent backflow of dirt. Specifically, the one-way valve 40 further improves cleaning reliability and water quality protection. Connecting the inlet to the filter bag, the one-way valve 40 effectively prevents dirt trapped in the filter bag from flowing back into the pool, avoiding secondary pollution of the water by collected debris. It also ensures that dirt is stably trapped within the filtration space. Combined with the efficient collection of the filter bag, this reduces the risk of bacterial growth in the pool, ensuring better pool water cleanliness and improving the overall stability of the cleaning effect compared to traditional solutions.

[0066] It should be noted that, along the height direction of the filter device, you can refer to... Figures 1 to 3 In this alternative scheme, the inlet 80 is located at the bottom of the pool robot 90 and extends along the vertical direction of the pool robot 90. It is easy to understand that the height of the filter device is the extension direction of the inlet 80, i.e., direction X.

[0067] The filtration device of this application is also applicable to the technical solution of having a liquid inlet 80 on the side of the pool robot. The phrase "a portion of the bottom wall 10 extends toward the direction away from the liquid inlet 80 to form a positioning part 11" can be understood as the extension direction of the liquid inlet 80 into the pool robot 90 being the height direction, or the guiding direction of the liquid inlet 80 being the height direction.

[0068] Please see Figure 1In some exemplary embodiments of this application, the filtering device of the pool robot 90 further includes a first connector 50, which is disposed on the bottom wall 10 and can move between a connected position and a retracted position along a first direction. A second connector 32 is disposed on the circumferential wall 31 of the support member 30. When the first connector 50 moves to the connected position, the first connector 50 and the second connector 32 cooperate to connect, so that the support member 30 is fixed relative to the bottom wall 10. When the first connector 50 moves to the retracted position, the cooperation between the first connector 50 and the second connector 32 is released.

[0069] After the filter bag 20 is fitted onto the support member 30, the support member 30 can be fixed relative to the bottom wall 10 through the cooperation of the first connector 50 and the second connector 32, thereby fixing the filter bag 20. This reduces the possibility of the filter bag 20 falling off during the cleaning operation of the pool robot 90, which helps to improve the filtration reliability of the pool robot 90.

[0070] Please see Figure 1 In some exemplary embodiments of this application, the bottom wall 10 is formed with a groove 12 extending in a first direction, and the first connector 50 is slidably disposed in the groove 12.

[0071] Please see Figure 1 In some exemplary embodiments of this application, the first connector 50 includes a snap hole 51, and the second connector 32 includes a snap fastener 321. The snap hole 51 and the snap fastener 321 form a snap-fit ​​engagement to fix the support member 30; and / or the first connector 50 includes a snap fastener 321, and the second connector 32 includes a snap hole 51. The snap hole 51 and the snap fastener 321 form a snap-fit ​​engagement to fix the support member 30.

[0072] The filter bag 20 can be fixed by the snap-fit ​​of the clip hole 51 and the buckle 321. The structure is simple, easy to assemble, and has low production cost and good connection stability.

[0073] Please see Figure 1 In some exemplary embodiments of this application, the first connector 50 includes a first magnetic element, and the second connector 32 includes a second magnetic element whose magnetic direction is opposite to that of the first magnetic element. When the first connector 50 moves to the connection position, the first magnetic element and the second magnetic element magnetically engage to fix the support member 30 relative to the bottom wall 10.

[0074] Please see Figure 1 In some exemplary embodiments of this application, the filtering device further includes a connector driving device 60, the driving end of the connector driving device 60 being connected to a first connector 50, and the first connector 50 moving between a connected position and a retracted position along a first direction under the drive of the connector driving device 60.

[0075] It is understood that the embodiments of this application do not limit the specific structure of the first connector 50 and the second connector 32. Any suitable connection structure can be adopted, as long as the support 30 can be fixed relative to the bottom wall 10.

[0076] Please see Figure 1 In some exemplary embodiments of this application, the connector drive device 60 includes a linear motor, a telescopic cylinder, or a servo cam assembly.

[0077] The above embodiment enables the filter bag 20 to be fixed automatically via the connector drive device 60, achieving a higher degree of automation. Furthermore, the drive device offers advantages such as fast response speed and high control precision, facilitating precise matching between the first connector 50 and the second connector 32 and improving connection stability.

[0078] Please see Figure 1 In some exemplary embodiments of this application, the filter device further includes an upper cover 70 and a controller. The upper cover 70 is provided with a detection device. After the upper cover 70 is opened, the controller controls the connector drive device 60 to move the first connector 50 to the retracted position, thereby releasing the cooperation between the first connector 50 and the second connector 32.

[0079] Please see Figure 1 In some exemplary embodiments of this application, the detection device includes a Hall sensor.

[0080] Specifically, when the user needs to replace the filter bag 20, they need to first open the top cover 70 of the pool robot 90. The top cover 70 of the pool robot 90 can be equipped with a Hall sensor or other detection device to identify whether the pool robot 90 is open or closed. When the detection device detects that the top cover 70 is open, it sends a signal to the controller. The controller then controls the connector drive device 60 to move the first connector 50 to a retracted position, thereby disengaging the first connector 50 and the second connector 32. This allows the user to remove the support member 30 and the filter bag 20 connected to the support member 30 for replacement. After replacement, the user re-attaches the support member 30 to the positioning part 11 and closes the top cover 70 of the pool robot 90. When the detection device detects that the top cover 70 is closed, it automatically controls the connector drive device 60 to move the first connector 50 to the connection position. Through the cooperation of the first connector 50 and the second connector 32, the support member 30 with the filter bag 20 is fixedly connected to the bottom wall 10.

[0081] In some exemplary embodiments of this application, an annular groove is provided on the circumferential wall 31 of the support member 30. After the filter bag 20 is sleeved on the circumferential wall 31, it is fixed to the circumferential wall 31 by an elastic member. After fixing, the filter bag 20 is limited between the elastic member and the circumferential wall, and the elastic member is accommodated in the annular groove.

[0082] In some embodiments, with the first connector 50 and the second connector 32 disengaged, the user can remove only the filter bag 20 connected to the support 30 and replace the filter bag 20, without removing the support 30 together with the filter bag 20. After replacing the filter bag 20, the new filter bag 20 is then reinstalled onto the support 30.

[0083] It is understandable that the annular groove provided in the circumferential wall 31 can accommodate elastic elements, such as elastic rubber rings. The cooperation between the annular groove and the elastic element can prevent the elastic element from moving up and down. The elastic element presses down on the filter bag 20 so that part of it is located between the elastic element and the annular groove, which can prevent the filter bag 20 from loosening, thereby achieving effective fixation of the filter bag.

[0084] In some embodiments of this application, the cleaning system further includes a positioning detection device disposed within the receiving cavity for detecting whether the filter device is connected to the positioning cavity.

[0085] Whether the filtered dirt is collected by using a filter bag 20 or directly by a frame-type filter device, the user needs to clean the filter device regularly. The filter device in this embodiment is detachably connected within the housing cavity. Detachable connection methods include, but are not limited to, snap-fit, threaded connection, fastener connection, and magnetic attraction.

[0086] In this embodiment, after the user disassembles and cleans the filter device, the system can automatically detect whether the filter device is properly connected using a positioning detection device, thereby further improving the automation level of the cleaning system. This reduces the possibility of malfunctions or poor cleaning results caused by improper connection during the cleaning operation of the pool robot 90, thus improving the reliability of the pool robot 90.

[0087] In some embodiments, the positioning detection device can promptly issue an alarm signal when it detects that the filter device is not connected in place and the user closes the top cover 70 of the pool robot 90. The alarm signal includes, but is not limited to, a visual alarm signal with flashing indicator lights, an audible alarm signal, or an alarm / abnormality notification displayed on the host computer.

[0088] In some embodiments, the base station of the pool robot 90 may be equipped with a second robotic arm, which can automatically replace the filter bag 20.

[0089] For example, when the pool robot 90 detects that the filter bag 20 needs to be replaced, the pool robot 90 can move towards the base station. When the base station detects the pool robot 90, the pool robot 90 can either go ashore and enter the base station, or remain on the water surface near the base station. The base station first controls the second robotic arm to open the top cover 70 of the pool robot 90, then removes the support member 30 and the filter bag 20 connected to the support member 30, and reconnects the new filter bag 20 to the support member 30, thereby completing the replacement of the filter bag 20. Finally, after the replacement is completed, the base station controls the second robotic arm to re-attach the support member 30 to the positioning part 11 and closes the top cover 70 of the pool robot 90 to achieve automated replacement of the filter bag 20. During the replacement process, when the pool robot 90 determines that the top cover 70 is in the open state, it controls the connector drive device 60 to drive the first connector 50 to the retracted position, thereby disengaging the first connector 50 and the second connector 32, so that the second robotic arm can remove the support member 30 and the filter bag 20 connected to the support member 30. In some implementations, the openness of the cover 70 can be detected by a detection device inside the pool robot 90, or by a base station.

[0090] Alternatively, the filter bag 20 can be replaced directly by a second robotic arm without removing the support member 30.

[0091] In some embodiments, the frame-type filter device can also be cleaned directly by a second robotic arm. For example, the second robotic arm can first remove the filter device from the receiving cavity of the pool robot 90, then empty and clean the waste inside the filter device, and finally reinstall the filter device into the receiving cavity, thereby completing the cleaning operation of the filter device. As another example, if there is no dirt inside the filter device, the second robotic arm can grip a wiping tool and insert it into the filter device to wipe it, thereby completing the cleaning operation of the filter device.

[0092] In addition to using Hall effect sensors or other detection devices to detect whether the top cover 70 is open or closed, mechanical structures can also be used to control whether the top cover 70 can be tightly closed with the main body of the pool robot 90. For example, if the frame of the filter device is not installed in place, the top cover 70 of the pool robot 90 cannot be closed tightly.

[0093] Please see Figure 1As shown, in some exemplary embodiments of this application, the first connector 50 has a U-shaped structure, with two connecting arms forming a receiving space, and the support 30 is located within the receiving space after assembly. The first connector 50 slides horizontally relative to the bottom wall 10, thereby locking and unlocking the support 30.

[0094] Furthermore, the first connector 50 includes two symmetrically arranged U-shaped arms with symmetrically arranged buckles 321 or buckles 51 on their upper surfaces. The corresponding buckles 51 or buckles 321 on the support 30 are also symmetrically arranged, which can form a snap-fit ​​engagement on both sides of the support 30, thereby increasing the connection strength and reliability.

[0095] Please see Figure 1 As shown in some exemplary embodiments of this application, a limiting post 13 and a guide post 14 are also provided on the bottom wall 10. The limiting post 13 is located at the end of the first connecting member 50 away from the connecting member driving device 60, and the support member 30 in the locked state is in a limiting fit with the limiting post 13. It can be understood that the limiting fit is a clearance fit, a contact fit, or abutment. The guide post 14 is located on the opposite outer side of the two U-shaped arms of the first connecting member 50, and a rolling bearing or roller is provided on its top. The outer ring of the rolling bearing or roller forms sliding friction with the two U-shaped arms to assist and guide the sliding of the first connecting member 50.

[0096] It is understood that in some alternative embodiments, the support member 30 may be rotatably connected to the positioning part 11, for example, by a threaded connection or a rotatable snap-fit, to achieve the cooperation between the support member 30 and the positioning part 11.

[0097] In some alternative embodiments, the connector drive device 60 specifically adopts a combination of a servo motor and a cam assembly to realize the reciprocating motion of the output end, thereby realizing the reciprocating sliding displacement of the first connector 50.

[0098] In some alternative embodiments, the snap-fit ​​relationship between the first connector 50 and the support 30 can also be selected from, for example, a snap-fit ​​and a slot, a structure that is nested and fixed to each other, a sliding block and a sliding cavity, etc.

[0099] It should be noted that the bottom wall 10 in the above embodiments can be the chassis area of ​​the pool robot, or it can be a separate structure connected to the chassis area. There are no special restrictions here. As for the liquid inlet 80, it can be located at the bottom of the chassis, and the filter device can be connected to it to allow water to enter.

[0100] Please see Figure 2 and Figure 3In some exemplary embodiments of this application, a swimming pool robot 90 is provided, which includes a filtration device as described in any of the above embodiments. The specific structure and beneficial effects of the filtration device of the swimming pool robot 90 are detailed in the above embodiments and will not be repeated here.

[0101] It is understandable that integrating the filtration device of the pool robot 90 in the aforementioned embodiment into the pool robot 90 can comprehensively improve the robot's overall performance, user experience, and operational reliability. In terms of cleaning efficiency, thanks to the detachable design of the support member 30 and the positioning part 11 of the bottom wall 10 in the filtration device, as well as the convenient fixing structure of the annular groove and elastic element, users do not need to disassemble the robot's main shell; they only need to quickly disassemble and assemble the support member 30 to replace the filter bag 20. Combined with the automated unlocking function of the top cover 70 detection and controller linkage, the robot's downtime for maintenance is significantly shortened, allowing the equipment to return to the pool more quickly and continue operating. This effectively solves the cleaning interruption problem caused by the cumbersome disassembly and assembly of trash cans in traditional robots, and is particularly suitable for the efficiency requirements of large pools or high-frequency cleaning scenarios.

[0102] In terms of ease of use and stability, the robot integrating this filtration device completely simplifies the user's operation process: there is no need to manually clean residual garbage or worry about filter wear; maintenance can be completed simply by replacing the filter bag 20, lowering the barrier to entry for non-professional users. At the same time, the reliable fixing of the snap-fit ​​or magnetic connectors in the filtration device, the anti-slip limit of the annular groove on the elastic element, and the anti-backflow design of the one-way valve 40 ensure that the filter bag 20 remains stably fixed and there is no risk of garbage backflow during dynamic operations such as autonomous movement and high-speed water pump suction. This reduces cleaning failures caused by filter component malfunctions, significantly improves the long-term reliability of the robot, and reduces the user's subsequent maintenance costs.

[0103] In addition, this integrated design can optimize the protection of pool water quality: the filter bag 20 does not need to be washed repeatedly, avoiding the hidden danger of bacteria growth from residual garbage in traditional garbage baskets. Combined with the high-efficiency interception capability of the filtration device, it can reduce the possibility of secondary pollution of the pool by garbage. This allows the robot to better ensure water cleanliness while completing garbage collection, which meets the core needs of pool maintenance. The robot has the dual value of "high-efficiency cleaning" and "water quality protection", further expanding its application scenario adaptability.

[0104] While this application has been described and illustrated in detail with reference to the accompanying drawings and the foregoing description, such description and illustration are intended to be illustrative or exemplary, not restrictive, and the application is not limited to the disclosed embodiments. Based on a study of the drawings, the disclosure, and the appended claims, those skilled in the art will understand and implement other embodiments and variations in carrying out the claimed invention. New embodiments can be obtained by combining any of the foregoing teachings.

[0105] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A filtration device for a swimming pool robot, the filtration device being connected to the liquid inlet of the swimming pool robot, characterized in that, include: The bottom wall, along the height direction of the filter device, has a portion of its wall surface extending away from the liquid inlet to form a positioning part; A support member, detachably fitted onto the positioning part, forms a passage for water to pass through; as well as Filter bags; The circumferential wall of the support member is used to provide an installation position for the filter bag, and the interior of the filter bag defines the filtration space of the filtration device. Water enters the filtration space sequentially through the inlet and the passage.

2. The filtration device for the pool robot according to claim 1, characterized in that, It also includes a first connector, which is disposed on the bottom wall and is movable in a first direction between a connecting position and a retracted position. A second connector is disposed on the circumferential wall of the support member. The first connector moves to the connecting position and the first connector and the second connector cooperate to connect, so that the support member is fixed relative to the bottom wall. The first connector moves to the retracted position, releasing the engagement between the first connector and the second connector.

3. The filtration device for the pool robot according to claim 2, characterized in that, The bottom wall is formed with a groove, and the first connector is slidably disposed in the groove.

4. The filtration device for the pool robot according to claim 2, characterized in that, The first connector includes a locking hole, and the second connector includes a snap fastener. The locking hole and the snap fastener form a snap-fit ​​engagement to secure the support member; and / or The first connector includes a buckle, and the second connector includes a locking hole. The locking hole and the buckle form a locking engagement to fix the support member.

5. The filtration device for the pool robot according to claim 2, characterized in that, The first connector includes a first magnetic element, and the second connector includes a second magnetic element with a magnetic direction opposite to that of the first magnetic element. When the first connector moves to the connection position, the first magnetic element and the second magnetic element magnetically engage to fix the support relative to the bottom wall.

6. The filtration device for the pool robot according to claim 2, characterized in that, The filtering device further includes a connector driving device, the driving end of which is connected to the first connector, and the first connector moves between a connected position and a retracted position along the first direction under the drive of the connector driving device.

7. The filtration device for the pool robot according to claim 6, characterized in that, The connecting component drive device includes a linear motor, a telescopic cylinder, or a servo cam assembly.

8. The filtration device for the pool robot according to claim 6, characterized in that, The filtration device also includes an upper cover and a controller. The upper cover is equipped with a detection device. After the upper cover is opened, the controller controls the first connector of the connector drive device to move to the retracted position, thereby releasing the cooperation between the first connector and the second connector.

9. The filtration device for the pool robot according to claim 1, characterized in that, The support member has an annular groove on its circumferential wall. After the filter bag is fitted onto the circumferential wall, it is fixed to the circumferential wall by an elastic member. After fixing, the filter bag is confined between the elastic member and the circumferential wall, and the elastic member is accommodated in the annular groove.

10. A swimming pool robot, characterized in that, The pool robot includes a filtration device as described in any one of claims 1 to 9.

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