Base station, cleaning system and swimming pool robot

Abstract

A base station (2000) and a cleaning system. The base station (2000) comprises a base station body (20001), and a second filter cartridge (21102) and a second cleaning assembly (2170) which are arranged on the base station body (20001). The second filter cartridge (21102) is used for receiving waste from a first filter cartridge (1051) of a swimming pool robot (1000); the second cleaning assembly (2170) comprises at least one first spray head (2173) and at least one liquid inlet component (21731); the first spray head (2173) comprises at least one nozzle (21732) rotatably connected to the liquid inlet component (21731); the nozzle (21732) is provided with at least one first spray outlet (217321), and the first spray outlet (217321) is communicated with the liquid inlet component (21731); liquid sprayed from the first spray outlet (217321) drives the nozzle (21732) to rotate relative to the liquid inlet component (21731); the first spray head (2173) sprays liquid to the first filter cartridge (1051) at least by means of the first spray outlet (217321), so as to clean the first filter cartridge (1051). The structure achieves high-speed steady-flow spraying of the first spray head (2173), automatic and all-round cleaning of the first filter cartridge (1051), and centralized waste collection.

Description

A base station, a cleaning system, and a pool robot

[0001] This disclosure claims priority to PCT application No. PCT / CN2025 / 085184, filed on March 26, 2025, entitled “Control Method and Cleaning System for Cleaning System”, the entire contents of which are incorporated herein by reference.

[0002] This disclosure claims priority to Chinese Patent Application No. 2025108644645, filed on June 25, 2025, entitled “A Base Station and a Cleaning System”, the entire contents of which are incorporated herein by reference.

[0003] This disclosure claims priority to Chinese Patent Application No. 2025111810532, filed on August 22, 2025, entitled "A Base Station, a Cleaning System, a Cleaning System Control Method and a Pool Robot", the entire contents of which are incorporated herein by reference.

[0004] This disclosure claims priority to PCT application No. PCT / CN2025 / 126025, filed on September 30, 2025, entitled "A base station, a cleaning system, a cleaning system control method and a pool robot", the entire contents of which are incorporated herein by reference.

[0005] This disclosure claims priority to Chinese Patent Application No. 2026200058424, filed on January 5, 2026, entitled "A Base Station and a Cleaning System", the entire contents of which are incorporated herein by reference.

[0006] This disclosure claims priority to Chinese Patent Application No. 2026100071673, filed on January 5, 2026, entitled "A Base Station", the entire contents of which are incorporated herein by reference. Technical Field

[0007] This invention belongs to the technical field of swimming pool cleaning equipment, and particularly relates to a base station, a cleaning system, and a swimming pool robot. Background Technology

[0008] With the improvement of people's living standards, swimming pools have become a common facility in many homes and public places. To maintain the cleanliness of swimming pools, pool robots, as an automated cleaning device, are widely used. During the use of pool robots, the filter box, as a key component for collecting impurities, is crucial, and its cleaning and maintenance directly affect the robot's working efficiency and lifespan.

[0009] Currently, pool robots on the market are typically equipped with a removable first filter box for collecting pool debris. To facilitate cleaning of this first filter box, existing technology uses a base station to transfer debris from the first filter box into its internal cavity before discharging it outside. In other words, the base station merely acts as a transfer station or transition channel, moving debris from the first filter box outside. If the debris is directly discharged from outside the base station into the outdoors, sewers, or the pool, it can easily cause secondary pollution. (Invention Content)

[0010] This invention aims to solve the aforementioned problems by proposing a base station and cleaning system that can automatically re-filter waste within the base station and promptly discharge liquids outside. This reduces the space occupied by waste within the base station and prevents secondary pollution through solid-liquid separation, while also preventing the waste inside the base station from emitting foul odors. Furthermore, a second cleaning component is disclosed that can automatically spray the first filter box, achieving automatic cleaning of the first filter box and centralized collection of waste, effectively improving the system's automation, hygiene, and ease of use. In addition, a nozzle driving device is disclosed that can drive the first nozzle to automatically enter the pool robot and rinse the first filter box, enabling cleaning without manual intervention and accurately targeting the cleaning area, ultimately achieving stable automatic cleaning of the first filter box and improving overall cleaning efficiency.

[0011] The first objective of this application is to disclose a base station, comprising: a base station body; a second filter box disposed on the base station body; for receiving waste from the first filter box of a pool robot; a second cleaning component disposed on the base station body; the second cleaning component including at least one first nozzle; at least one liquid inlet component for communicating with a water source; the first nozzle including at least one nozzle rotatably connected to the liquid inlet component; the nozzle having at least one first spray nozzle communicating with the liquid inlet component, liquid sprayed from the first spray nozzle driving the nozzle to rotate relative to the liquid inlet component; the first nozzle spraying liquid onto the first filter box at least through the first spray nozzle to clean the first filter box.

[0012] This application also discloses a base station, wherein the liquid inlet component includes at least one second liquid inlet assembly fluidly connected to the first nozzle and fluidly connected to a water supply component; a drive assembly for driving the first nozzle to move, such that the first nozzle switches between at least a first position and a second position; when the first nozzle moves from the second position to the first position, the first nozzle extends from outside the pool robot into the pool robot to spray liquid into the first filter box, and the debris in the first filter box is received by the second filter box to achieve automatic cleaning of the first filter box, the cleaning process of the first filter box does not require manual intervention by the user; when the first nozzle moves from the first position to the second position, the first nozzle retracts outside the pool robot.

[0013] The second objective of this application is to disclose a cleaning system, including

[0014] Base station; the base station is the base station described above;

[0015] A swimming pool robot; the swimming pool robot includes a first filter box; when the swimming pool robot stops at the base station, the first nozzle sprays liquid onto the first filter box to clean the first filter box.

[0016] This application sets up a second filter box to receive the waste in the first filter box, so as to automatically transfer the waste in the first filter box to the second filter box; in addition, the waste from the first filter box is further filtered by the second filter box, and the filtered liquid is discharged from the base station in a timely manner, which can prevent the waste from smelling bad in the second filter box.

[0017] This application provides a nozzle drive device that can actively drive the first nozzle to move, so that the first nozzle can automatically move from the storage position to the working position and back to the storage position according to the control signal during the cleaning process. This eliminates the need for the user to manually connect or align the nozzle with the first filter box, allowing the first filter box to be fully and evenly rinsed without user intervention.

[0018] The first nozzle of this application can generate liquid impact forces in different directions through the first water spray nozzle set on the nozzle, which drives the nozzle to rotate and realize synchronous rinsing of the filter box at different angles; the nozzle of this application can realize rotational spraying without the need for an additional motor, which reduces system energy consumption and manufacturing costs. Attached Figure Description

[0019] Figure 1 is a schematic diagram of a structure of a base station according to an embodiment of the present disclosure;

[0020] Figure 2 is a schematic diagram of the structure of the base station provided in this disclosure with a second filter box;

[0021] Figure 3 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0022] Figure 4 is a side view of the structure shown in Figure 3.

[0023] Figure 5 is a schematic diagram of the exploded structure shown in Figure 3;

[0024] Figure 6 is a schematic diagram of an embodiment of the water outlet section in the base station provided in this disclosure;

[0025] Figure 7 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0026] Figure 8 is a side view of the structure shown in Figure 7;

[0027] Figure 9 is a schematic diagram of the exploded structure shown in Figure 8;

[0028] Figure 10 is a cross-sectional view of the structure shown in Figure 8;

[0029] Figure 11 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0030] Figure 12 is a schematic diagram of the structure of several embodiments of the nozzle in the base station provided in this disclosure;

[0031] Figure 13 is a schematic diagram of an embodiment of a base station provided in this disclosure, in which a third water spray nozzle is provided on the first nozzle.

[0032] Figure 14 is a schematic diagram of an embodiment of nozzle installation in a base station provided in this disclosure;

[0033] Figure 15 is a side view of the structure shown in Figure 14.

[0034] Figure 16 is a schematic diagram of an embodiment of the nozzle and liquid inlet component in the base station provided in this disclosure without the installation of a gasket;

[0035] Figure 17 is a cross-sectional structural diagram of the structure shown in Figure 16;

[0036] Figure 18 is a schematic diagram of an embodiment of the nozzle and liquid inlet component assembly with gaskets in the base station provided in this disclosure;

[0037] Figure 19 is a cross-sectional structural schematic diagram of an embodiment of the nozzle and liquid inlet component assembly with gasket provided in this disclosure in the base station;

[0038] Figure 20 is a structural schematic diagram of the assembly of the first nozzle, support arm, and second shielding cover in the base station provided in this disclosure.

[0039] Figure 21 is a partial structural schematic diagram of an embodiment in which the first nozzle and the support arm are locked together by a plug-in pin in Figure 20;

[0040] Figure 22 is a partial structural schematic diagram of an embodiment in which the first nozzle and the support arm are locked together by a plug-in post in Figure 20;

[0041] Figure 23 is a schematic diagram of the exploded structure shown in Figure 22;

[0042] Figure 24 is a partial cross-sectional schematic diagram of an embodiment of the assembly of the first nozzle, support arm, and second shielding cover in the base station provided in this disclosure.

[0043] Figure 25 is an exploded structural diagram of an embodiment of the first nozzle and support arm and the second shielding cover in the base station provided in this disclosure.

[0044] Figure 26 is a side view of the structure shown in Figure 25.

[0045] Figure 27 is a schematic diagram of the chamfered guide structure provided for the liquid inlet component, support arm, and second shielding cover in the base station provided in this disclosure.

[0046] Figure 28 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0047] Figure 29 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0048] Figure 30 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0049] Figure 31 is a schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0050] Figure 32 is a partial structural schematic diagram of an embodiment of the first nozzle in the base station provided in this disclosure;

[0051] Figure 33 is a cross-sectional schematic diagram of an embodiment of the pool robot provided in this disclosure;

[0052] Figure 34 is a partial structural schematic diagram of the first bottom cover of the first filter box in an embodiment of the pool robot provided in this disclosure, with the first cover in the first state open;

[0053] Figure 35 is a structural schematic diagram of an embodiment of the pool robot provided in this disclosure performing a cleaning operation on the first filter box located on the base station body;

[0054] Figure 36 is a schematic diagram of the rotation angle of the first nozzle in the base station provided in this disclosure;

[0055] Figure 37 is a structural schematic diagram of an embodiment of the base station provided in this disclosure;

[0056] Figure 38 is a schematic diagram of the partial exploded structure of the base station in Figure 37;

[0057] Figure 39 is a cross-sectional view of the liquid inlet assembly of the base station in Figure 37;

[0058] Figure 40 is a side view of the structure shown in Figure 39;

[0059] Figure 41 is a schematic diagram of the second liquid inlet assembly structure of the base station in Figure 37;

[0060] Figure 42 is a side view of the structure shown in Figure 41.

[0061] Figure 43 is a partial exploded view of the assembly of the drive component and the first liquid inlet component provided in this disclosure;

[0062] Figure 44 is a cross-sectional structural diagram of the structure shown in Figure 41;

[0063] Figure 45 is a partial structural schematic diagram of part A of the structure shown in Figure 44;

[0064] Figure 46 is a schematic diagram of the partial explosion structure of the first liquid inlet component of the base station in Figure 37;

[0065] Figure 47 is a schematic diagram of an embodiment of the assembly of the second connecting pipe and the second transmission wheel of this disclosure;

[0066] Figure 48 is an exploded view of the assembly structure of the second connecting pipe and the second transmission wheel in Figure 47.

[0067] Figure 49 is a partial cross-sectional schematic diagram of the clutch device provided in this disclosure;

[0068] Figure 50 is a structural schematic diagram of the telescopic component, the second connecting pipe, and the second transmission wheel assembly in Figure 49;

[0069] Figure 51 is a cross-sectional structural diagram of the structure shown in Figure 49;

[0070] Figure 52 is a schematic diagram of an embodiment of the telescopic component provided in this disclosure;

[0071] Figure 53 is a schematic diagram of an embodiment of the second transmission wheel provided in this disclosure;

[0072] Figure 54 is a cross-sectional structural schematic diagram of an embodiment of the second cleaning component provided in this disclosure;

[0073] Figure 55 is a partial structural schematic diagram of part B of the structure shown in Figure 54;

[0074] Figure 56 is a schematic diagram of a partial exploded structure of the structure shown in Figure 54;

[0075] Figure 57 is a structural schematic diagram of the assembly of the positioning bead, the second connecting pipe, and the second transmission wheel in Figure 55.

[0076] Figure 58 is a cross-sectional structural diagram of the structure shown in Figure 57;

[0077] Figure 59 is a schematic diagram of the exploded structure of the structure shown in Figure 57;

[0078] Figure 60 is a schematic diagram of an embodiment of the second transmission wheel shown in Figure 57;

[0079] Figure 61 is a structural schematic diagram of the positioning bead shown in Figure 54 located in the recessed area of ​​the first mating part;

[0080] Figure 62 is a cross-sectional view of the positioning bead extending out of the first mounting cavity in Figure 54;

[0081] Figure 63 is a structural schematic diagram of the positioning bead shown in Figure 54 located in the protruding area of ​​the first mating part;

[0082] Figure 64 is a schematic diagram of the positioning bead located in the first mounting cavity in Figure 54;

[0083] Figure 65 is a schematic diagram of an embodiment of a base station provided in this disclosure, in which a second cleaning component is provided.

[0084] Figure 66 is a front view structural diagram of the second cleaning component provided in this disclosure;

[0085] Figure 67 is a side view of the structure shown in Figure 66.

[0086] Figure 68 is a schematic diagram of the exploded structure of the structure shown in Figure 66;

[0087] Figure 69 is a cross-sectional view of the connection between the support arm and the first and second connecting pipes in Figure 66.

[0088] Figure 70 is a partially enlarged structural schematic diagram of the structure shown in Figure 69;

[0089] Figure 71 is a side view of an embodiment of the bushing provided in this disclosure;

[0090] Figure 72 is a side view of the structure shown in Figure 71 from a second perspective;

[0091] Figure 73 is a side view of the first connecting tube provided in this disclosure;

[0092] Figure 74 is a side view of the second connecting pipe provided in this disclosure;

[0093] Figure 75 is a schematic diagram of an embodiment of a detection component provided in the base station according to the present disclosure;

[0094] Figure 76 is a schematic diagram of the support arm rotation limit setting in the base station provided in this disclosure;

[0095] Figure 77 is a side view of the structure shown in Figure 66;

[0096] Figure 78 is a schematic diagram of an embodiment of a base station provided in this disclosure in which the detection component is located in a second position;

[0097] Figure 79 is a side view of the structure shown in Figure 78;

[0098] Figure 80 is a schematic diagram of an embodiment of a base station provided in this disclosure in which a detection component is positioned in a first location;

[0099] Figure 81 is a side view of the structure shown in Figure 80.

[0100] Figure 82 is a schematic diagram of an embodiment of the base station provided in this disclosure in which the detection component is located in a third position;

[0101] Figure 83 is a side view of the structure shown in Figure 82;

[0102] Figure 84 is a structural schematic diagram of an embodiment of the base station provided in this disclosure;

[0103] Figure 85 is a cross-sectional view of the base station in Figure 84;

[0104] Figure 86 is a structural schematic diagram of the second cleaning component in Figure 84;

[0105] Figure 87 is a cross-sectional structural diagram of the structure shown in Figure 86;

[0106] Figure 88 is a schematic diagram of the exploded structure shown in Figure 86;

[0107] Figure 89 is a partial exploded structural diagram of the structure shown in Figure 86;

[0108] Figure 90 is a schematic diagram of the exploded structure of the structure shown in Figure 86;

[0109] Figure 91 is a structural schematic diagram of the fourth protective cover provided in this disclosure;

[0110] Figure 92 is a side view of the structure shown in Figure 91.

[0111] Figure 93 is a structural schematic diagram of an embodiment of the pool robot provided in this disclosure;

[0112] Figure 94 is a cross-sectional view of the first bottom cover of the first filter box of the pool robot in Figure 95 with the first cover closed;

[0113] Figure 95 is a structural schematic diagram of an embodiment of the pool robot provided in this disclosure on a base station.

[0114] The markings in the diagram represent: 1000 - Pool robot; 1001 - First main body; 10531 - Third opening; 1016 - Fourth inlet; 1031 - First water inlet; 1032 - Second water inlet; 1041 - First water outlet; 1051 - First filter box; 1054 - First bottom cover; 1061 - Main water pump; 2000 - Base station; 20001 - Base station body; 2054 - Third receiving cavity; 2055 - Fourth opening; 21101 - Third inlet; 21102 - Second filter box; 2170 - Second cleaning component; 2171-Support base; 21711-First protective cover; 217111-Second connecting hole; 21712-Second protective cover; 21713-Third protective cover; 21714-Fourth protective cover; 217141-Flat surface; 217142-First protrusion; 217143-Receiving portion; 2172-Support arm / nozzle support arm; 21721-Insertion interface; 217211-Ninth step; 21722-Connecting baffle; 217221-First insertion hole; 217223-First inclined surface; 217224-Second inclined surface; 21723-Anti-collision part; 21724-First connecting arm; 21725-Second connecting arm; 217251-First sliding groove; 21726-First connecting cover; 217261-Third connecting hole; 21727-Insertion end; 217271-Guide protrusion; 2173-First nozzle; 21731-Liquid inlet component; 217311-First connecting part; 2173111-Second protrusion; 217312-Second connecting part; 2173121-Flow guide part; 2173122-Third mounting part; 217313-Third boss; 217314-Second insertion hole; 217315-Second groove; 217316-Waterproof sealing ring; 217318-Third spray nozzle; 21732-Nozzle; 217321-First spray nozzle; 217322-Second spray nozzle; 217323-Extension part; 217324-Water outlet part; 2173241-First mounting part; 2173242-First diffuser part; 2173243-Third groove; 2173244- First water outlet; 217325 - Side; 217326 - Support; 217327 - Fluid cavity; 21733 - First sub-nozzle; 21734 - Second sub-nozzle; 21735 - First mounting base; 217351 - First connecting inner ring; 217352 - First connecting outer ring; 21736 - Second mounting base; 217361 - Second connecting outer ring; 217362 - Third connecting outer ring; 217363 - Limiting ring; 217364 - Transition piece; 217365 - Washer; 2173651 - Groove; 21737 - Insert post; 217381 - First step; 217382 - Second step; 217383 - Third step; 217384 - Fourth step; 217385 - Fifth step;217386 - Sixth step; 2174 - Motor; 2175 - First gear; 2176 - Second gear; 21761 - Fifth groove; 21762 - Fourth connecting hole; 21763 - Fourth groove; 2177 - Second cover; 21771 - Second mounting part; 217711 - First groove; 21772 - Blocking part; 217721 - Eighth groove; 2178 - Drive assembly; 21781 - Motor base; 217811 - First limiting seat; 2 1782-Sleeve; 217821-Second limiting seat; 217822-First limiting groove; 217823-First limiting boss; 217824-Second limiting boss; 217825-First connecting hole; 21783-Second bearing; 21784-First connecting pipe; 217841-First boss; 217842-First pipe body; 217843-Sixth groove; 217844-First mounting hole; 21784 5-Limiting protrusion; 21785-Second connecting pipe; 217851-Second pipe body; 217852-Seventh groove; 217853-Second limiting part; 217854-Third connecting part; 217855-Eighth step; 21786-Telescopic assembly; 217861-Telescopic head; 217862-Third tooth; 217863-Third limiting part; 217864-Sliding rod; 217865-Elastic element; 21 7866 - Third mounting base; 217867 - First mounting cavity; 21787 - Sealing assembly; 217871 - First sealing ring; 217872 - Second sealing ring; 21788 - First bearing; 21789 - Position detection mechanism; 217891 - First detection component; 217892 - Second detection component; 217893 - Second mating component; 2178931 - First sub-mating component; 2178932 - Second sub-mating component; 2179-Second liquid inlet assembly; 21791-Second liquid inlet component; 21792-Check valve; 21793-Second delivery pipe; 21794-Third delivery pipe; 21795-Fourth mounting base; 2180-First liquid inlet assembly; 21801-First liquid inlet component; 21802-First delivery pipe; 2181-Transmission assembly; 21811-Second transmission wheel; 218111-Seventh step; 21812-Clutch mechanism; 21813-Positioning bead; 21814-First mating part; 218141-Recessed area; 218142-Protruding area; 218143-First concave tooth; 218144-First convex tooth; 21815-Second boss; 21816-Second convex tooth; 21817-Retaining ring. Detailed Implementation

[0115] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0116] It should be noted that all directional and positional terms used in this invention, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing the invention and do not require the invention to be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0117] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0118] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0119] To achieve automatic cleaning of the first filter box of a swimming pool robot, this application proposes a spray rinsing technology, as shown in Figures 1-95. This application discloses a swimming pool robot cleaning system, including a swimming pool robot 1000 and a base station 2000. The base station is used at least to clean the first filter box 1051 of the swimming pool robot, so that the waste in the first filter box is transferred from the swimming pool robot or temporarily stored in the base station. Further, in some embodiments, the base station includes at least a base station body and a second filter box 21102. At least a portion of the second filter box is located in the base station body. The second filter box is used to receive waste from the first filter box and further filter it.

[0120] The Pool Robot 1000 is the main working unit of the cleaning system, responsible for performing cleaning tasks in the pool.

[0121] Base station 2000 serves as the support center for the cleaning system, providing services such as docking, cleaning, and charging for the pool robots. The base station body 20001 constitutes the main support structure of the base station, with a resting surface on its top for the pool robots to dock.

[0122] The base station disclosed in this application can be used on land, for example, by placing it on the bank of a pool or on the ground. In this case, the base station is in an air environment, and the pool robot can automatically get out of the pool and walk onto the base station. For example, the base station also includes a support component, one end of which is attached to the base station body, and the other end extending below the surface of the water in the pool, allowing the pool robot to walk from the pool to the support component and then back to the base station body. Alternatively, the pool robot can be manually carried onto the base station body by a user.

[0123] When the base station is used on shore or on the ground, the first filter box is in the air, and the first nozzle sprays water at least to the side and / or bottom of the first filter box to rinse the side and / or bottom of the first filter box, not only flushing the garbage inside the first filter box out of the first filter box, but also washing away the garbage attached to the side and / or bottom of the first filter box.

[0124] When the base station is placed on the shore or on the ground, the water source for cleaning the first filter box can be municipal water from the user's home. For example, water from a tap. Since municipal water is pumped to the user's tap, the base station may or may not need to have a first water pump. Alternatively, the water source for cleaning the first filter box can be other types of water, such as water from a pool or river. In this embodiment, the base station needs to include at least one first water pump, which draws water from the pool or river to the first nozzle, causing the nozzle to spray water.

[0125] The liquid filtered by the second filter can be discharged into the user's sewer or outdoor lawn; alternatively, it can be discharged into a pool for reuse. Furthermore, the base station also includes a second water pump, which is used to pump the liquid filtered by the second filter out of the base station to accelerate the discharge of the liquid from the base station.

[0126] The base station disclosed in this application can also be placed inside a pool or in a placement area connected to the pool. For example, the base station can be placed on a raised platform inside the pool. For example, the raised platform can be a sun deck or steps within the pool, wherein the sun deck and steps can be separated in the pool, or the sun deck can serve as a step surface of the steps. Alternatively, a recessed placement area can be provided on the pool bank, and the placement area can be connected to the pool through an opening in the pool wall, where the base station can be installed. Alternatively, the base station can be installed on the pool wall; or on the bottom of the pool; or it can be placed in other locations within the pool. When the base station is installed inside the pool or in a placement area, a pool robot can automatically walk back to the base station body from the pool; or, the pool robot can be manually carried to the base station body by a user.

[0127] The base station also includes a drainage channel for discharging the liquid filtered by the second filter box outside the base station; one end of the drainage channel connects to the third receiving cavity, and the other end serves as the final drain outlet. In scenarios where the base station is placed in a pool or placement area, when the pool robot is stationary on the base station body, if the final drain outlet is at least partially or completely below the first liquid level in the pool, the base station also includes at least one second water pump for pumping the liquid filtered by the second filter box out of the base station. If the final drain outlet is above the first liquid level in the pool, the base station may or may not have a second water pump.

[0128] If the base station is placed in a pool or within a designated area, when the pool robot is stationary on the base station, if the first liquid level in the pool is lower than or roughly level with the fourth opening of the base station, the first filter box is located above the fourth opening and is therefore in the air. Alternatively, if the first liquid level in the pool is lower than the bottom of the first filter box, the first filter box is also in the air. The first nozzle sprays liquid onto the first filter box to clean it. The cleaning effect of the first nozzle on the first filter box is roughly the same as if the base station were on land or ground. In other words, the first nozzle sprays water onto the first filter box located in the air to clean the debris inside and adhering to the inner wall of the first filter box.

[0129] The main body of the pool robot is provided with at least one first water outlet, and at least part of the first water outlet is located on the top of the main body. When the pool robot cleans the liquid in the pool, the liquid filtered by the first filter box is discharged out of the pool robot through the first water outlet.

[0130] In scenarios where the base station is placed in a pool or within a designated area, when the pool robot is stationary on the base station, if the first liquid level in the pool is between the bottom of the first filter box and the first outlet, at least a portion of the side of the first filter box is positioned below the first liquid level, creating a second liquid level within the first filter box. This second liquid level can be higher, lower, or equal to the first liquid level. For example, when the pool robot is stationary on the base station, before the first nozzle and second water pump are running, the first liquid level in the pool is between the bottom of the first filter box and the first outlet; or, when at least one of the first nozzle and second water pump is running, the first liquid level in the pool is between the bottom of the first filter box and the first outlet.

[0131] For example, for ease of description, the side portion of the first filter box located below the second liquid surface is referred to as the first side portion, and the side portion of the first filter box located above the second liquid surface is referred to as the second side portion. Since the first side portion is located below the second liquid surface and the second side portion is located above the second liquid surface, that is, the second side portion is in the air environment, when the first nozzle sprays water onto the first side portion and the second side portion, the first impact force of the water sprayed onto the first side portion is greatly reduced, while the second impact force of the water sprayed onto the second side portion is not reduced. The first impact force is less than the second impact force. Therefore, the water sprayed by the first nozzle can clean the garbage attached to the second side portion, but cannot clean the garbage attached to the first side portion.

[0132] Therefore, in order to clean the debris attached to the first side of the first filter box, in this embodiment, the liquid in the first filter box is continuously drawn into the second filter box by operating the aforementioned second water pump (e.g., turning it on or increasing the operating parameters). The liquid is then filtered by the second filter box, making the outflow of water from the first filter box greater than the flow rate of liquid sprayed from the first nozzle into the first filter box (i.e., the inflow of water into the first filter box); or the drainage volume of the second water pump per unit time is greater than the spray volume of the first nozzle per unit time, causing the second liquid level in the first filter box to drop. This keeps the side of the first filter box continuously exposed above the second liquid level, i.e., in the air environment, thereby reducing the proportion of the first side on the side of the first filter box. This allows the water flow sprayed by the first nozzle to clean the second side above the second liquid level.

[0133] For example, in some embodiments, by operating the second water pump, the second liquid level in the first filter box is lowered to or below the third opening of the first filter box. This means that most of the sides of the first filter box are above the second liquid level, allowing the water jet from the first nozzle to clean most of the sides of the first filter box. For instance, if the second water pump is off before adjusting the second liquid level, the controller turns it on when adjustment is needed. Alternatively, if the second water pump is running before adjusting the second liquid level, the controller increases its operating parameters when adjustment is required. Furthermore, the base station also includes a sensor to detect the second liquid level, allowing the controller to control the second water pump to start or adjust its operating parameters based on the sensor's detection signal.

[0134] Alternatively, in some embodiments, the operation of the second water pump adjusts the height of the second liquid level in the first filter box to a preset height; once the second liquid level reaches the preset height, it is kept at the preset height to facilitate the first nozzle spraying liquid to clean the side of the first filter box.

[0135] For example, a first filter screen is provided on the side of the first filter box to form a first filter surface. Debris easily adheres to the first filter screen, so when the first nozzle cleans the side of the first filter box, it primarily cleans the first filter screen. The second water pump adjusts the height of the second liquid level to ensure that the first filter screen is positioned above the second liquid level, i.e., in the air environment. Alternatively, in some embodiments, a first filter screen may or may not be provided at the bottom of the first filter box. If a first filter screen is provided at the bottom of the first filter box, the second water pump adjusts the second liquid level to ensure that the first filter screen at the bottom of the first filter box is also positioned above the second liquid level, facilitating the cleaning of debris adhering to the first filter screen when the first nozzle sprays liquid onto the bottom of the first filter box.

[0136] In other words, if most or all of the first filter screen is below the second liquid surface, the liquid in the first filter box needs to be sucked away by the operation of the second water pump, so that most of the first filter screen is above the second liquid surface, that is, the first filter screen is in the air environment, which makes it easier for the first nozzle to spray liquid onto the first filter screen to wash away the garbage attached to the first filter screen.

[0137] In some embodiments, if the base station is placed in a pool or within a designated area, the water source for cleaning the first filter box can be liquid from the pool. In this case, the base station also includes the aforementioned first water pump to pump the liquid from the pool to the first nozzle. Alternatively, the water source for cleaning the first filter box can be municipal water from the user's home, such as tap water. In this embodiment, the liquid filtered by the second filter box can be discharged back into the pool for reuse; alternatively, it can be pumped into the user's sewer or onto the user's outdoor lawn by the operation of the second water pump.

[0138] Furthermore, regardless of whether the base station is used on land or on the ground, or placed in a pool or designated area, the base station also includes a pressurization component to ensure a high-speed water flow from the first nozzle. The pressurization component can be located in the waterway between the clean water source and the first nozzle. For example, the pressurization component includes, but is not limited to, a booster pump, a water hammer pump, a pressure tank, a mechanical pressurization device, an elevated water tank, etc., or it can increase the water flow velocity by reducing the diameter of the pipe adjacent to and connected to the first nozzle and / or reducing the orifice diameter at the water outlet (e.g., the nozzle).

[0139] In some embodiments, the way the pool robot docks with the base station can be: the pool robot docks with the base station underwater or on the water, and the positional relationship between the pool robot and the base station when docking can be arranged left and right or up and down. For example, when the pool robot is located on the base station, it can lie on the base station body or carrier in a roughly vertical posture; or, it can be located on the base station body or carrier in a roughly horizontal posture.

[0140] For example, in some embodiments, the base station is located on the water, and at least a portion of the carrier is located underwater. When the base station docks with the pool robot, both the carrier and the pool robot are in a generally vertical position. At this time, the pool robot lies on the carrier to achieve docking between the base station and the pool robot, and the pool robot is located on one side of the carrier. Alternatively, in another embodiment, the base station is located underwater, and when the base station docks with the pool robot, both the base station and the pool robot are in a generally horizontal position, and the pool robot is located above the base station body. Alternatively, in other embodiments, the base station is located on the water, and when the base station docks with the pool robot, both the base station and the pool robot are in a generally horizontal position, and the pool robot is located above the base station body.

[0141] In some embodiments, as shown in Figures 1, 35, 37, 84, and 95, the base station further includes at least one second cleaning component 2170; the second cleaning component includes at least one first nozzle, which cleans the first filter box by spraying liquid onto it. When the pool robot stops on the base station body, it sprays liquid through the first nozzle to clean the first filter box, causing debris in the first filter box to fall into the second filter box, thereby transferring the debris from the first filter box to the second filter box.

[0142] The pool robot 1000 is used to perform tasks such as cleaning, disinfection, and rescue in a target area. The target area can be any water-containing area where the pool robot 1000 can move. For example, the target area can include, but is not limited to, swimming pools, water tanks, oil wells, sewers, etc. The following description uses a swimming pool (or water tank) as an example. For a swimming pool, the pool includes at least a pool bottom and pool walls.

[0143] In one embodiment, as shown in Figures 33-35 and 93-94, the pool robot includes a first body 1001, at least one liquid inlet, at least one first filter box 1051, at least one liquid outlet, and at least one suction assembly. The liquid inlet allows liquid from the pool to enter the pool robot body 1001, enabling the pool robot to clean at least one of the pool bottom, pool walls, waterline, and water surface. The liquid outlet discharges the liquid filtered by the first filter box from the first body. The suction assembly generates suction force to guide the liquid flow. The first filter box 1051 filters dust-laden water, retaining debris within the filter box.

[0144] Under the action of the suction component, the dust-laden water in the pool is drawn into the first filter box 1051 through the liquid inlet and filtered by the first filter box 1051. The garbage carried in the liquid remains in the first filter box 1051. After being filtered, the liquid is discharged from the first main body through the liquid outlet after passing through the suction component.

[0145] In one embodiment, as shown in Figures 33, 34, and 94, the liquid inlet section includes at least a first inlet 1031, the liquid outlet section includes at least one first outlet 1041, and the suction assembly includes a main water pump 1061. The first inlet 1031, the first filter box 1051, the main water pump 1061, and the first outlet 1041 are sequentially fluidly connected to form a first water path for cleaning the bottom wall, side wall, or waterline of the pool. For example, in one embodiment, there is one first outlet. Alternatively, in other embodiments, there are multiple first outlets; for example, there are two, three, or more first outlets.

[0146] In other embodiments, as shown in Figures 33, 34, and 94, the liquid inlet section includes at least a second water inlet 1032, the liquid outlet section includes at least a first water outlet 1041, and the suction assembly includes a main water pump 1061; the second water inlet 1032, the first filter box 1051, the main water pump 1061, and the first water outlet 1041 are sequentially connected to form a second water path for cleaning the water surface and water line.

[0147] In other embodiments, the liquid inlet section includes at least the aforementioned first inlet and second inlet. The first inlet 1031, the first filter assembly, the suction assembly, and the first outlet 1041 are sequentially fluidly connected to form a first water path for cleaning the bottom of the pool, the side wall of the pool, or the waterline. The second inlet 1032, the first filter assembly, the suction assembly, and the first outlet 1041 are sequentially fluidly connected to form a second water path for cleaning the water surface and the waterline.

[0148] In some embodiments, as shown in Figures 33, 34, 93, and 94, a fourth inlet 1016 is provided on the first body. The fourth inlet communicates with the first filter box, allowing the first nozzle to extend into or exit the pool robot through the fourth inlet. Since the first nozzle can extend into the first body to spray liquid onto the first filter box, the liquid sprayed by the first nozzle can reach the first filter box, ensuring the cleaning effect of the first filter box.

[0149] In some embodiments, a fourth inlet is provided on the first body, but the first nozzle does not extend into the first body. The first nozzle is located outside the first body, and the first nozzle sprays liquid from outside the first body through the fourth inlet to the first filter box, which can also achieve cleaning of the first filter box.

[0150] In some embodiments, the fourth inlet may be the first water inlet or the second water inlet; when the first body is provided with a pick-up and drop-off port, the fourth inlet may also be a pick-up and drop-off port, which is used for the user to put the first filter box into the first body or take out the first filter box from the first body; or, in other embodiments, the fourth inlet may be independent of the first water inlet and the second water inlet, and the pick-up and drop-off port may be provided on the first body.

[0151] In some embodiments, the pool robot also includes a baffle movably disposed at a fourth entrance, the baffle being used to open or close the fourth opening.

[0152] In some embodiments, to discharge waste from the first filter box, as shown in Figures 33-35 and 94, the first filter box includes at least one third opening 10531 and a first bottom cover 1054, which can open or close the third opening. At least a portion of the third opening is located on the bottom of the first filter box. When the pool robot stops on the base station body, after the first bottom cover opens the third opening, the third opening can communicate with the third inlet of the second filter box, allowing waste and liquid in the first filter box to be discharged from the third opening and fall into the second filter box through the third inlet.

[0153] In some embodiments, the second filter box has at least one filter surface for filtering liquid and waste entering therein, and retaining the waste inside the second filter box. The second filter box is provided with at least one third inlet 21101, which serves as the entry point for waste into the second filter box. As shown in Figure 35, when the pool robot is stationary on the base station body, the third inlet can communicate with the third opening of the first filter box, allowing waste in the first filter box to enter the second filter box through the third opening and the third inlet. When the pool robot is stationary on the base station body, the first nozzle sprays liquid onto the first filter box. After the first bottom cover of the first filter box opens the third opening, the waste in the first filter box and the liquid sprayed into the first filter box by the first nozzle enter the second filter box through the third opening and the third inlet. The waste remains in the second filter box, and the liquid is discharged from the base station body after being filtered by the second filter box, thereby temporarily storing the waste in the first filter box in the second filter box and completing the cleaning of the first filter box. During the cleaning process of the first filter box, no user intervention is required, achieving automatic cleaning of the first filter box.

[0154] In some embodiments, the second filter box includes a second frame and a second filter screen. The second filter screen is disposed on the second frame to form a filter surface. Alternatively, in other embodiments, the second filter box is a first filter bag, which can be a disposable filter bag or a reusable filter bag. If the second filter box is a disposable filter bag, when the first filter bag is full of garbage, the first filter bag can be directly discarded to replace it with a new one, without the need to clean the first filter bag. Alternatively, the second filter screen can be replaced with filter cotton, which can be disposed outside or inside the second frame.

[0155] In some embodiments, the second filtration assembly further includes a second filter bag (not shown in the figure), which is disposed within a second filter box. The second filter bag has a fifth inlet that communicates with a third opening. The second filter bag is used at least to collect waste falling from the first filter box. The second filter box is used at least for secondary filtration of the liquid filtered by the second filter bag. The dual-layer filtration of the second filter bag and the second filter box further improves the waste filtration effect. Furthermore, the second filter bag is detachably disposed within the second filter box for easy periodic replacement.

[0156] In some embodiments, the base station body includes a third receiving cavity, and at least one fourth opening is disposed on the base station body and communicates with the third receiving cavity; at least a portion of the second filter box is disposed in the third receiving cavity; the fourth opening and the third inlet are communicated; when the pool robot stops on the base station body and the first bottom cover rotates outward toward the pool robot to open the third opening, at least a portion of the first bottom cover engages with the fourth opening, so that the waste in the first filter box falls sequentially from the third opening, the fourth opening, and the third inlet into the second filter box.

[0157] In some embodiments, as shown in Figures 1, 2, 35, and 95, this application discloses a base station, including a base station body 20001, at least one second filter box 21102, and at least one second cleaning component 2170. The second filter box is at least partially disposed on the base station body and configured to receive waste from the first filter box of the pool robot. The second cleaning component is disposed on the base station body and includes at least one first nozzle 2173 and at least one liquid inlet component 21731. The liquid inlet component is used to communicate with a water source. The first nozzle 2173 includes at least one nozzle 21732, and the nozzle is rotatably connected to the liquid inlet component.

[0158] This application discloses a base station, with the base station body 20001 as the main functional integration entity. A detachable second filter box 21102 is provided within the base station body, and a fluid channel is constructed connecting it to the bottom of the first filter box 1051 of the pool robot. This achieves physical separation and functional integration of the cleaning, sewage discharge, and waste re-filtration and recycling processes. When the pool robot completes its work and is automatically or manually guided to the base station's docking position, the first filter box on the pool cleaning machine docks with the fourth opening 2055 on the base station body. The third opening of the first filter box 1051 and the third inlet of the second filter box form a communication path in this state. Subsequently, the base station starts the cleaning program. The first nozzle 2173 obtains liquid from an external water source and sprays it into the inner cavity of the first filter box 1051 through the nozzle. The liquid impacts the filter screen and inner wall, peeling off the attached waste and dirt, which then sink with the water flow. The liquid flows through the third opening into the fourth opening 2055 and then into the second filter box 21102, achieving waste transfer. Sewage and solid waste are separated and concentrated in the second filter box 21102. In 102; the second filter box 21102 is used to filter the mixed rinsing liquid, store the rinsing waste, and the sewage flows into the third receiving cavity 2054 and is discharged through the second filter box 21102, thereby achieving cleaning and discharge at the same time; or, the sewage filtered by the second filter box 21102 can also be temporarily stored in the third receiving cavity 2054 and discharged periodically. After cleaning is completed, the base station 2000 automatically closes the water circuit and discharges the residual sewage, and the pool robot can leave again to perform the cleaning task. The user only needs to periodically take out the second filter box 21102 for emptying or rinsing. The whole process does not require manual disassembly or cleaning of the robot body, thereby realizing a fully automated closed-loop operation of cleaning, recycling and resetting.

[0159] In some embodiments, the liquid sprayed by the first nozzle, i.e., the cleaning water source or cleaning liquid, can be water from a swimming pool, pool, or river; or tap water supplied to a water tank, faucet, or shower head; or cleaning liquid to further remove oil stains, stubborn dirt, etc. from the filter screen; or a mixture of any two or more of the above water sources, for example, a mixture of tap water and cleaning liquid; or a mixture of water from a swimming pool, pool, or river and cleaning liquid.

[0160] In some embodiments, the cleaning water source is provided by a water supply component. For example, when the cleaning water source is liquid in a swimming pool, pond, river, or water tank, the water supply component can be a swimming pool, pond, river, or water tank. In this case, the second cleaning component may also include a first water pump to supply liquid from the swimming pool, pond, river, or water tank to the first spray head. Alternatively, when the cleaning water source is an indoor or outdoor faucet in a user's home or a sprinkler head on a lawn, the water supply component can be a faucet or a sprinkler head. In this case, the second cleaning component may also include a first water pump connected to the faucet or sprinkler head to provide cleaning water to the first spray head. Alternatively, in this case, the second cleaning component does not include a first water pump, and the faucet or sprinkler head directly provides cleaning water to the first spray head.

[0161] In some embodiments, the first nozzle is detachably disposed relative to the base station body to facilitate replacement of the first nozzle. The first nozzle 2173 can be selected from a single-hole nozzle, a multi-hole nozzle, a rotating nozzle, a non-rotating nozzle, a high-pressure nozzle, a low-pressure nozzle, etc. In some embodiments, the rotating nozzle is a mechanically driven rotating nozzle, that is, the rotation of the nozzle is achieved by a mechanical structure; or, the rotating nozzle is a recoil-driven rotating nozzle, that is, the rotation of the nozzle is achieved by the reaction force of the water flow, also known as a self-spinning nozzle.

[0162] In some embodiments, the nozzle is provided with at least one or more water outlets, the shape of which is not limited and can be selected from at least one of circular, fan-shaped, square, or slit-shaped. The shape of the nozzle is also not specifically limited; it can be circular, elliptical, polygonal, bowl-shaped, or disc-shaped.

[0163] In order for the nozzles to clean different side walls and bottom walls inside the first filter box, in some embodiments, the nozzles are stationary relative to the liquid inlet component, and there are at least two or at least three nozzles. By setting multiple nozzles on the liquid inlet component, the outlet directions of the multiple nozzles are different, so that the direction of liquid spraying by different nozzles is different, so as to spray liquid onto different side walls and bottom walls inside the first filter box, thereby ensuring the cleaning effect of the first filter box.

[0164] Alternatively, in other embodiments, the nozzle can rotate relative to the liquid inlet component, thereby causing the outlet on the nozzle to rotate, enabling the nozzle to spray liquid onto different side walls, bottom walls, and / or top of the first filter box, thus performing comprehensive cleaning of the side walls, bottom walls, and / or top of the first filter box. In other words, by providing a rotatable first nozzle, comprehensive cleaning of the different side walls, bottom walls, and / or top of the first filter box can be achieved.

[0165] In one embodiment, the first nozzle can be selected as a spinning nozzle. A spinning nozzle does not require an external motor to drive the nozzle rotation. During the water spraying process of the first nozzle, liquid enters the inlet component and is ejected from the nozzle. The ejected liquid forms a high-speed liquid, which exerts a reaction force on the nozzle to drive it to rotate, causing the nozzle to spray liquid in different directions within the first filter box, thereby enabling thorough cleaning of the first filter box. Alternatively, in other embodiments, the second cleaning component further includes a motor for driving the nozzle to rotate relative to the inlet component.

[0166] In some embodiments, the outlet on the nozzle is configured to have an offset angle, or is guided to an inclined flow path before the water flow is ejected; when the high-speed water flow is ejected from the offset outlet, it generates a reverse thrust on the nozzle, which has a component force in the direction perpendicular to the rotation axis, and this component force forms a torque on the rotation center of the nozzle, under the continuous action of this torque, the nozzle begins to rotate around its axis.

[0167] For example, in some specific embodiments, as shown in Figures 5, 7, and 11, at least one first spray nozzle 217321 is provided on the nozzle 21732. The first spray nozzle is connected to the liquid inlet component. Since the size of the first spray nozzle is smaller than the size of the liquid inlet component, the liquid sprayed from the first spray nozzle forms a high-speed liquid to drive the nozzle to rotate relative to the liquid inlet component. The arrangement of the first spray nozzle enables the sprayed liquid to generate a high-speed direct current flushing force while simultaneously forming a tangential thrust on the nozzle, driving the nozzle to rotate continuously around its own axis. When the cleaning process is initiated, water flows into the inlet component of the first nozzle through a pipeline. The liquid flows along the inner cavity of the inlet component to the nozzle and is sprayed out through the first spray nozzle. The liquid sprayed through the first spray nozzle generates an eccentric tangential torque on the outer wall of the nozzle at the moment of exit. This tangential force drives the nozzle to rotate smoothly around the connecting shaft of the inlet component. During the rotation, the nozzle continuously changes the spray direction, causing the sprayed liquid flow to form a spiral or circular trajectory, achieving dynamic rinsing of the inner wall and bottom of the first filter box. As the nozzle continues to rotate, the water flow can act on the bottom and / or side walls and / or top of the first filter box from multiple angles, peeling off the adhering dirt. Throughout the process, the nozzle rotates continuously by the energy of the water flow itself, without the need for motor assistance. At the same time, the sprayed liquid flow can push the garbage towards the discharge port, causing the garbage to fall into the second filter box of the base station with the water flow, accelerating the garbage discharge rate. In the above embodiment, the first spray nozzle is a powered spray nozzle.

[0168] In one specific embodiment, as shown in Figures 5, 9, 11, 12, and 13, at least a portion of the first water nozzle 217321 is disposed on the side of the nozzle 21732 so that the sprayed liquid impacts the side wall of the first filter box laterally to remove attached dirt.

[0169] In one specific embodiment, as shown in FIG12, at least a portion of the first spray nozzle 217321 is disposed at the bottom of the nozzle 21732, so that the sprayed liquid impacts the bottom area of ​​the first filter box downwards, for removing deposited debris and forming a three-dimensional spray network with the side outlet. In the example of this application, the top of the nozzle is the side communicating with the liquid inlet component, and the bottom of the nozzle refers to its liquid outlet side. When the nozzle is disposed above the liquid inlet component, the bottom of the nozzle is located at the top of the first nozzle head, as shown in FIG17 and FIG18. When the nozzle is disposed below the liquid inlet component, the bottom of the nozzle is located at the bottom of the first nozzle head, as shown in FIG13, FIG14 and FIG15.

[0170] In another specific embodiment, as shown in Figures 11 and 12, at least a portion of the first water nozzle 217321 is disposed on the side of the nozzle 21732 and at least a portion is disposed at the bottom of the nozzle, so as to clean the first filter box in all directions.

[0171] In one embodiment, at least two first water spray nozzles 217321 are provided, and the two first water spray nozzles are non-axisymmetrically distributed so that the reaction forces exerted by each water outlet on the nozzle during spraying do not cancel each other out, but instead form a resultant force acting on the nozzle. This avoids the problem of torque imbalance and nozzle ineffective rotation caused by symmetrical arrangement. At the same time, the liquid spray angle changes dynamically during rotation, forming a dynamic coverage cleaning trajectory, so that the bottom, side walls or corners of the first filter box can be impacted and cleaned.

[0172] In one embodiment, the nozzle 21732 includes a side portion 217325 and a support portion 217326 connected to the side portion 217325. The side portion and the support portion form a fluid cavity 217327 with one end open. At least a portion of the first water nozzle 217321 is disposed on the side portion and / or the support portion. The open end of the nozzle is rotatably connected to the liquid inlet component 21731.

[0173] In one embodiment, the side portion 217325 is configured as a ring shape, at least a portion of the ring side portion being an annular arc shape; or, at least a portion of the ring side portion being planar; or, at least a portion of the ring side portion being an annular arc shape and at least a portion of the ring side portion being planar.

[0174] In one embodiment, the support portion 217326 is planar or arc-shaped.

[0175] In one specific embodiment, as shown in Figures 14 and 15, the side portion 217325 is configured as an annular shape, with at least a portion of the annular side portion forming an annular arc. At least a portion of the first water spray nozzle is disposed on the annular side portion, thereby enabling liquid to be sprayed onto the side wall area of ​​the filter box. Combined with the rotation of the nozzle, this generates a circumferential water flow, achieving 360° coverage cleaning. The support portion is planar, and at least a portion of the first water spray nozzle is disposed on the support portion, thereby enabling liquid to be sprayed onto the bottom area of ​​the filter box. In this embodiment, the nozzle is bowl-shaped or disc-shaped.

[0176] In another specific embodiment, as shown in Figures 8 to 10, the side portion 217325 is configured as an annular shape, at least a portion of the annular side portion is an annular arc shape, and at least a portion of the annular side portion is planar. The first water spray nozzle is provided on the annular side portion, so that liquid can be sprayed onto the top, bottom and / or at least part of the side wall area of ​​the filter box; the support portion is arc-shaped, and the second water spray nozzle is provided on the support portion, so that liquid can be sprayed onto the side wall area of ​​the filter box.

[0177] In one embodiment, as shown in Figures 8, 10, and 12, at least one second spray nozzle 21732 is also provided on the nozzle 21732. At least a portion of the second spray nozzle is located on the side and / or at least a portion at the bottom of the nozzle. The second spray nozzle is designed not to participate in the nozzle drive. It works in conjunction with the first spray nozzle to achieve omnidirectional cleaning. After the cleaning mode is activated, the liquid inlet component 21731 pressurizes external water and delivers it to the internal cavity of the nozzle. The liquid is distributed to the first spray nozzle 217321 and the second spray nozzle 217322 through the internal flow channel. When the first spray nozzle sprays liquid, it drives the nozzle to rotate continuously around the liquid inlet component, thereby forming a dynamic annular cleaning path to perform high-speed rinsing on most areas of the first filter box. Simultaneously, the second spray nozzle sprays high-speed liquid as it moves integrally with the nozzle, supplementing the cleaning of the blind spots sprayed by the first spray nozzle. In the above embodiment, the second spray nozzle is a non-powered spray nozzle.

[0178] In one embodiment, the first spray nozzle 217321 and the second spray nozzle 217322 are configured as perforations or slits. Perforated nozzles deliver a strong water jet impact, suitable for removing stubborn dirt such as grease and algae; slit-shaped nozzles spray a large water curtain, suitable for rinsing loose impurities over a wide area. Furthermore, the shapes of the first spray nozzle and the second outlet can be arbitrarily combined. By using different forms at different outlet positions, differentiated cleaning strategies can be formed for different areas of the first filter box.

[0179] In one embodiment, as shown in Figures 3, 5, 9, 11, and 12, when the first nozzle 217321 is configured as a slit, the tangent at any position does not intersect with the axis of rotation of the nozzle, so as to generate a reverse force on the nozzle and thus push the nozzle to rotate.

[0180] In one embodiment, as shown in FIG12, when the second nozzle 217322 is configured as a slit, its tangent at any position intersects the axis of rotation of the nozzle, so as not to generate a reverse force on the nozzle, thereby not driving the nozzle to rotate. Furthermore, in some embodiments, the second nozzle may be in the form of a straight line, a cross, an X, or other structures.

[0181] In one embodiment, as shown in Figures 3-10, when the first nozzle 217321 is configured as a circular hole, its center line does not intersect with or parallel to the axis of rotation of the nozzle, so as to generate a reverse force on the nozzle and thus push the nozzle to rotate.

[0182] In one embodiment, when the second nozzle 217322 is configured as a circular hole, its centerline intersects or is parallel to the axis of rotation of the nozzle, so as not to generate a reverse force on the nozzle and thus not to drive the nozzle to rotate.

[0183] In one embodiment, the first and second water nozzles can be combined in various ways. For example, some of the first water nozzles extend from the side of the nozzle to the bottom, some of the first water nozzles are located on the side of the nozzle, and the second water nozzle is located at the bottom of the nozzle. The first water nozzle serves as a powered water nozzle, with some extending from the side of the nozzle to the bottom, combining the functions of sidewall cleaning and bottom rinsing. Some of the first water nozzles are specifically used for sidewall cleaning, while the second water nozzle, as a non-powered water nozzle, is specifically used for bottom cleaning. Any combination of different water outlets can be flexibly configured according to the contamination distribution of the first filter box, as shown in the structural diagrams a, b, c, d, e, and f in Figure 12, ensuring that the nozzle maintains optimal rinsing performance in different cleaning scenarios.

[0184] In one embodiment, the first spray nozzle and / or the second spray nozzle are arranged in a hole shape, as shown in Figures 5 and 8 to 10. The nozzle 21732 also includes a water outlet 217324, which includes a first mounting part 2173241 and a first diffuser part 2173242. The first mounting part is detachably connected to the first spray nozzle or the second spray nozzle. The first diffuser part is used to diffuse and spray water. The first mounting part is connected to the first diffuser part.

[0185] In one embodiment, as shown in FIG6, the first diffuser is provided with at least one first water outlet 2173244 and at least one slit-shaped third groove 2173243. The first water outlet is connected to the first water nozzle or the second water nozzle, and the third groove is connected to the first water outlet, so as to diffuse the sprayed water column into a mist curtain-like liquid and expand the spray range.

[0186] In one embodiment, as shown in FIG5, the nozzle 21732 further includes at least one extension 217323, which communicates with the first or second water nozzle. The first mounting portion is integrally formed with or detachably connected to the extension portion. In one embodiment, the extension portion is integrally formed with the nozzle, the first or second water nozzle is located in the axial direction of the extension portion, and the first mounting portion and the extension portion are connected by threads.

[0187] In one embodiment, as shown in Figures 3, 7, 9, 10, 11 and 28 to 32, the nozzle 21732 can rotate relative to the horizontal axis L1 or the vertical axis L2 or other axes. During the rotation, the spray direction of each water outlet changes continuously, and the spray trajectory expands from a local fixed point to a dynamic annular area, thereby achieving full coverage of the first filter box 1051 and effectively eliminating cleaning dead corners.

[0188] For example, in some specific embodiments, as shown in Figures 9, 10, and 28, the nozzle 21732 is rotatable relative to the horizontal axis L1. The nozzle is provided with multiple first spray nozzles 217321 and at least one second spray nozzle 217322, wherein the first spray nozzles face the bottom and / or top of the first filter box, and correspondingly, the second spray nozzles face the sidewall of the first filter box. In this embodiment, the nozzle adopts a multi-directionally distributed outlet design, dividing the spray direction into three regions: bottom, sidewall, and / or top, creating a layered coverage effect for the cleaning water flow. Simultaneously, the nozzle can rotate relative to the horizontal axis L1 without the need for additional motors and gear mechanisms. During rotation, the spray range of each outlet dynamically expands, and the spray angle continuously changes, allowing the water flow to dynamically cover a wider area, creating a continuous rinsing effect at the bottom, sidewall, and top, thereby significantly improving the uniformity and thoroughness of cleaning inside the filter box. Preferably, the first nozzle using this structure can be a single nozzle structure.

[0189] In one embodiment, as shown in FIG3, the nozzle is rotatable relative to the vertical axis L2. The nozzle is provided with a plurality of first spray nozzles and at least one second spray nozzle, wherein the water outlet of at least one nozzle is detachably connected to an extension via a first mounting portion, the first spray nozzles are at least facing the side wall of the first filter box, and further, the second spray nozzles are at least facing the bottom of the first filter box.

[0190] In one embodiment, as shown in Figures 11 and 29, the nozzle is rotatable relative to the vertical axis L2. The nozzle is provided with a plurality of first spray nozzles and at least one second spray nozzle. The first spray nozzles are at least directed toward the sidewall of the first filter box, and further, the second spray nozzles are at least directed toward the bottom of the first filter box.

[0191] In some embodiments, as shown in Figures 3, 4, 5, 16, 30, 31, and 32, the nozzle includes at least a first sub-nozzle 21733 and a second sub-nozzle 21734, wherein both the first and second sub-nozzles are connected to the liquid inlet component, the first sub-nozzle is located above the second sub-nozzle, and the first sub-nozzle is used at least to spray liquid onto the side wall of the first filter box; the second sub-nozzle is used at least to spray liquid onto the side wall and bottom of the first filter box.

[0192] In one embodiment, at least a portion of the outlets of the first sub-nozzle and the second sub-nozzle face the sidewall of the first filter box. The liquid sprayed by the first and second sub-nozzles onto the sidewall of the first filter box overlaps, allowing the liquid sprayed in cooperation to cover the entire sidewall of the first filter box. At least a portion of the outlet of the second sub-nozzle faces the bottom of the first filter box, thus spraying liquid onto the bottom of the first filter box. This cleans the bottom of the first filter box and flushes debris from inside the first filter box to the third opening at the bottom, accelerating the flow of debris into the second filter box.

[0193] Furthermore, in some other embodiments, if the top of the first filter box is provided with a first cover, the first cover is used to open or close the top opening of the first filter box, then at least a portion of the outlet of the first sub-nozzle faces the first cover, and when the first sub-nozzle sprays liquid, it can spray liquid onto the first cover to clean the first cover.

[0194] In one embodiment, the first nozzle has two nozzles, namely a first sub-nozzle 21733 and a second sub-nozzle 21734, both of which are connected to the liquid inlet component. The first and second sub-nozzles can be arranged horizontally side by side, vertically side by side, or staggered. The first and second sub-nozzles can rotate relative to a horizontal axis, a vertical axis, or other axes (not horizontal or vertical axes).

[0195] For example, in some specific embodiments, as shown in Figures 3, 30, and 31, both the first sub-nozzle 21733 and the second sub-nozzle 21734 are rotatable relative to the vertical axis, with the first sub-nozzle located above the second sub-nozzle. In some examples of this application, the first nozzle adopts an upper and lower dual-sub-nozzle structure. By setting the first and second sub-nozzles at different heights and corresponding to the upper and lower areas of the first filter box respectively, a three-dimensional division of labor and functional complementarity in the cleaning space is achieved, avoiding cleaning blind spots caused by the limitation of a single nozzle in spray angle or height, and significantly improving cleaning efficiency and uniformity. Preferably, the first sub-nozzle is located at the top, and its sprayed liquid flow can act on the upper side wall and / or top area of ​​the first filter box, thereby keeping the upper filtration space unobstructed and clean; the second sub-nozzle is located at the bottom, and its sprayed liquid flow can concentrate on the lower side wall and / or bottom of the first filter box. Both sub-nozzles can rotate around the vertical axis L2, so that the originally fixed spray trajectory forms an all-round dynamic sweep.

[0196] In other embodiments, both the first sub-nozzle 21733 and the second sub-nozzle 21734 are rotatable relative to the horizontal axis, and the first sub-nozzle and the second sub-nozzle are arranged horizontally side by side.

[0197] In one embodiment, as shown in Figures 13, 14, and 15, the liquid inlet component is provided with at least one third spray nozzle 217318. This third spray nozzle is used to spray liquid onto the side of the first filter box, providing an additional directional rinsing path beyond the rotating cleaning of the nozzle. By directly arranging the third spray nozzle on the liquid inlet component, without changing the main structure of the nozzle or adding an additional nozzle module, a highly efficient spray channel can be added within a limited space, significantly expanding the spray range. In the example of this application, the third spray nozzle works synergistically with the rotating jet of the nozzle. The upper area is covered by the third spray nozzle, while the middle and lower areas are cleaned by the rotating nozzle, forming a continuous three-dimensional cleaning path from top to bottom. The entire sidewall area of ​​the filter box can be thoroughly cleaned under impact at different angles. In some embodiments, the third spray nozzle 217318 can be in the form of a line, cross, or X.

[0198] In one embodiment, a plurality of water outlets are provided on the first spray head, some of which are rotating water outlets, including powered water outlets and non-powered water outlets, such as the first water outlet 217321 and / or the second water outlet 217322. When the powered water outlet sprays liquid, it generates a reverse force on the nozzle to drive the nozzle to rotate, while the non-powered water outlet cannot drive the nozzle to rotate. Some of the water outlets are fixed water outlets, such as the third water outlet 217318. The fixed water outlets are used to spray liquid into a fixed area of ​​the first filter box to supplement cleaning.

[0199] In one embodiment, as shown in Figures 16-19, the first nozzle 2173 further includes a connecting assembly for rotatably connecting the open end of the nozzle 21732 to the liquid inlet component 21731. The connecting assembly is located between the nozzle and the liquid inlet component, ensuring the sealing of the nozzle during rotation and maintaining a stable rotational posture during long-term operation.

[0200] In one embodiment, as shown in Figures 16 and 17, the connecting assembly includes a first mounting base 21735, which is connected to the opening end of the nozzle; the connecting assembly also includes a second mounting base 21736, which is connected to the liquid inlet component 21731; the first mounting base is fitted over the second mounting base; or, the second mounting base is fitted over the first mounting base; further, the connecting assembly also includes a transition member 217364, disposed between the first and second mounting bases, so that the first mounting base can rotate relative to the second mounting base; the inner cavity of the liquid inlet component, the inner cavity of the second mounting base, the inner cavity of the first mounting base, and the fluid cavity of the nozzle are in communication, so that the inner cavity of the liquid inlet component is in fluid communication with the nozzle.

[0201] In some embodiments, the inlet component and the second mounting base are detachably connected. The inlet component is sleeved on one end of the second mounting base; or, one end of the second mounting base is sleeved outside one end of the inlet component; the other end of the second mounting base extends into the first mounting base and is rotatably connected to the first mounting base; or, the second mounting base is sleeved outside the first mounting base and is rotatably connected to the first mounting base. This sleeved arrangement of the first and second mounting bases creates a compact and stable hollow connection system between the nozzle and the inlet component. The two mounting bases can be sleeved in opposite directions, accommodating structural adaptability under different assembly orientations. In one embodiment, the second mounting base and the inlet component are connected by threads.

[0202] In some embodiments, the open end of the nozzle 21732 and the first mounting base 21735 are detachably connected. The open end of the nozzle is sleeved outside the first mounting base, and the first mounting base is sleeved outside one end of the second mounting base; alternatively, the open end of the nozzle is embedded inside the first mounting base, and the first mounting base is embedded inside the second mounting base. In one embodiment, the first mounting base and the open end of the nozzle are connected by threads. During routine maintenance, the user can directly unscrew the nozzle for cleaning or replacement, which not only avoids the waste of replacing the entire nozzle set due to nozzle clogging, but also reduces parts maintenance costs and downtime.

[0203] In one embodiment, the transition member 217364 is a rotating bearing, which enables the nozzle to rotate smoothly, avoids jamming, and ensures that the spray trajectory is continuous, stable, and without interruption.

[0204] In one embodiment, a rotating bearing is installed inside the first connecting inner ring 217351 of the first mounting base and then fitted onto the outside of the second connecting outer ring 217361 of the second mounting base. The nozzle is fixedly fitted onto the outside of the first connecting outer ring 217352 of the first mounting base (e.g., threaded connection). The third connecting outer ring 217362 of the second mounting base is fixedly installed inside the first connecting portion 217311 of the liquid inlet component (e.g., threaded connection).

[0205] In one embodiment, the diameter of the second connecting outer ring of the second mounting base is larger than the diameter of the third connecting outer ring, thus naturally forming a stepped structure. This step serves to limit the assembly depth of the first mounting base and also acts as a guide and leak-proof mechanism in the liquid flow channel. The limiting effect formed by the diameter difference prevents the first mounting base from being over-fitted during installation, ensuring that the fluid channel is unobstructed and not blocked. The surface of the step can also serve as a sealing surface, enhancing the fit and pressure resistance of the sealing ring and improving the overall structural stability.

[0206] In one embodiment, the second mounting base 21736 includes a limiting ring 217363, a second connecting outer ring 217361, and a third connecting outer ring 217362 arranged sequentially. The maximum diameter of the limiting ring is greater than the outer ring diameter of the second connecting outer ring and greater than the inner ring diameter of the rotating bearing, so as to fix the rotating bearing and the first mounting base 21735 on the liquid inlet component 21731.

[0207] In another embodiment, as shown in Figures 18 and 19, the second mounting base 21736 further includes a washer 217365. The washer is disposed between the liquid inlet component and the second mounting base, effectively preventing liquid from leaking out from the gap between the two, thus ensuring a constant internal pressure in the nozzle and preventing a decrease in cleaning power due to water leakage.

[0208] In one embodiment, the gasket 217365 is detachably installed inside the liquid inlet component 21731. For example, the gasket and the liquid inlet component are fixed by the engagement of the groove 2173651 and the protrusion 2173111. This structure can remain stable and not shift under high-speed liquid flow and nozzle rotation vibration, ensuring the sealing and stability of the fluid channel. Furthermore, the third connecting outer ring 217362 of the second mounting base is detachably installed inside the gasket 217365. For example, the third connecting outer ring and the gasket are fixed by a threaded connection. This combination arrangement forms a closed and continuous fluid delivery path between the liquid inlet component, the gasket and the second mounting base, providing a reliable fluid support foundation for the high-speed cleaning system.

[0209] In one embodiment, a stepped structure is provided in at least one of the following: between the first mounting base and the nozzle, between the first mounting base and the rotary bearing, between the first mounting base and the washer, between the first mounting base and the liquid inlet component, between the second mounting base and the rotary bearing, between the second mounting base and the washer, and between the washer and the liquid inlet component.

[0210] In one embodiment, as shown in Figures 17 and 19, a first step 217381 is provided between the first mounting base and the nozzle, a second step 217382 is provided between the first mounting base and the rotating bearing, a third step or a third step 217383 is provided between the first mounting base and the washer, a fourth step 217384 is provided between the second mounting base and the rotating bearing, a fifth step 217385 or a fifth step 217385 is provided between the second mounting base and the liquid inlet component, and a sixth step 217386 is provided between the washer and the liquid inlet component. The multi-step limiting structure enables precise spatial positioning of different components within the connecting assembly. Each step undertakes a corresponding limiting function, forming a complete mechanical constraint system between the nozzle, mounting base, bearing, washer, and liquid inlet component.

[0211] The first step is located between the nozzle and the first mounting base to prevent the nozzle from slipping during rotation. The second step is located between the first mounting base and the rotating bearing to control the bearing's embedding depth and prevent it from being over-pressurized or loosening. The third step is located between the first mounting base and the washer or between the first mounting base and the liquid inlet component to abut against the end face of the first mounting base and prevent it from shifting towards the liquid inlet component. The fourth step is located between the second mounting base and the rotating bearing to ensure that the rotating bearing maintains the correct support position. The fifth step is located between the second mounting base and the washer or between the second mounting base and the liquid inlet component to prevent the fixed part from sliding due to vibration. The sixth step is located between the washer and the liquid inlet component to ensure that the washer remains stably fitted under pressure. The steps cooperate to form a multi-level limiting system, thereby eliminating the displacement risks at each connection interface and ensuring that the entire nozzle rotation mechanism remains stable under high-speed conditions.

[0212] In one embodiment, PTFE tape is provided between the nozzle and the first mounting base to further enhance the sealing at the connection between the two. For example, the PTFE tape is provided at the threaded connection between the nozzle and the first mounting base. During installation, the PTFE tape can be wrapped around the threaded connection of the nozzle or the first mounting base first, and then the two can be fixed together.

[0213] In one embodiment, when the second mounting base is not equipped with a gasket 217365, the second mounting base is connected to the liquid inlet component by a thread, so that the liquid transmission path is stable and reliable, and the connection is not loosened due to the impact of high-speed water flow.

[0214] In one embodiment, as shown in Figures 1, 2, 20, 25, 28-32, 39, and 84, the second cleaning assembly 2170 further includes a support arm 2172 (which can also be described as a nozzle support arm). One end of the support arm is disposed on the base station body, and the other end is connected to the first nozzle. For example, one end of the support arm is fixedly or movably disposed on the base station body, and the other end of the support arm is connected to a liquid inlet component (such as a first delivery pipe). Further, for example, one end of the support arm is fixedly or movably disposed on the top or side wall of the base station body, so that the first nozzle is located above the top of the base station body.

[0215] In one embodiment, the first nozzle 2173 is detachably connected to the base station body 20001 via a support arm 2172. In one embodiment, the first nozzle and the support arm are detachably connected; or, in another embodiment, the first nozzle and the support arm are integrally formed.

[0216] In one embodiment, as shown in Figures 21, 23, and 25, the support arm 2172 is provided with a first insertion hole 217221, and the liquid inlet component 21731 is provided with a second insertion hole 217314. The first insertion hole and the second insertion hole are fixed by insertion pins 21737. In the example of this application, the first nozzle and the support arm are detachably connected by an insertion structure. The support arm is provided with a first insertion hole 217221, and the liquid inlet component 21731 is provided with a second insertion hole 217314. The two are fixed by insertion pins. During installation, the user only needs to align the two insertion holes and insert the insertion pins to complete the secure fixation. During disassembly, the insertion pins can be pulled out to complete the separation. The whole process does not require a screwdriver, making the operation convenient and the maintenance cycle short.

[0217] In one embodiment, a first inclined surface 217223 and a second inclined surface 217224 are respectively provided on opposite sides of the first insertion hole 217221 to facilitate the user to directly and manually remove the insertion post, so as to realize the quick assembly and disassembly of the support arm and the liquid inlet component.

[0218] The detachable design allows the first nozzle and the base station body to be packaged and transported separately, significantly reducing volume and weight, lowering logistics costs and reducing the risk of damage during transportation. In addition, the modular nature of the plug-in structure gives the first nozzle good compatibility and scalability. If it is necessary to upgrade or replace different models of nozzles in the future, only the nozzle part needs to be replaced, without modifying the base station body or the liquid supply structure, which greatly improves the system's maintenance flexibility and ease of use.

[0219] In one embodiment, as shown in FIG24, a seal is provided at the connection between the support arm and the liquid inlet component to achieve a waterproof seal at the connection. The seal can be a waterproof sealing ring 217316, sealant, gasket, etc. In the example of this application, a seal with an annular groove and a waterproof sealing ring 217316 is used between the support arm and the liquid inlet component. At least one second groove 217315 is provided on the side of the liquid inlet component away from the nozzle. The waterproof sealing ring 217316 is embedded in the second groove 217315 and fits tightly against the inner wall of the support arm to form a stable and reliable waterproof barrier.

[0220] In some embodiments, when the fourth inlet is provided with the aforementioned baffle, the baffle is used to open or close the fourth opening; the baffle opens the fourth inlet before the first nozzle switches from the retracted position to the extended position; and the baffle closes the fourth inlet after the first nozzle switches from the extended position to the retracted position.

[0221] In some embodiments, since the first nozzle extends into the first body through the fourth inlet and the baffle on the fourth inlet is in the open state, some of the liquid sprayed by the first nozzle into the first filter box will splash out of the pool robot from the fourth inlet. The splashed liquid will scatter on the base station or the pool shore, causing a poor user experience.

[0222] Therefore, in some embodiments, as shown in Figures 20, 24, and 25, the second cleaning assembly further includes a second shielding cover 2177 for closing or shielding the fourth inlet when the first nozzle extends into the fourth inlet to clean the first filter cartridge. For example, the second shielding cover 2177 is used to close or shield the fourth inlet when the first nozzle is in the extended position; when the first nozzle is in the retracted position, the second shielding cover opens the fourth inlet. The second shielding cover 2177 is disposed on at least one of the liquid inlet component (such as the first delivery pipe) and the support arm, and moves synchronously with the liquid inlet component (such as the first delivery pipe) and the first nozzle. When the first nozzle switches from the retracted position to the extended position, the second shielding cover shields the fourth inlet. When some liquid sprayed from the first nozzle splashes onto the fourth inlet, the second shielding cover blocks this portion of liquid within the first body, preventing this portion of liquid from splashing out of the pool robot from the fourth inlet. When the first nozzle switches from the extended position to the retracted position, the second shielding cover moves with the first nozzle away from the fourth inlet, thereby not shielding the fourth inlet.

[0223] In one embodiment, the area of ​​the second shield 2177 is greater than or equal to the area of ​​the fourth inlet to ensure shielding of all splashing water.

[0224] In one embodiment, the second shield may be made of a flexible or rigid material.

[0225] In one embodiment, the second shield 2177 is disposed on at least a portion of the liquid inlet component; or, the second shield is disposed on at least a portion of the support arm; or, at least a portion of the second shield 2177 is disposed on at least a portion of the liquid inlet component and at least a portion of the second shield 2177 is disposed on at least a portion of the support arm.

[0226] In some implementations, the second shielding cover is detachably connected to the liquid inlet component and / or support arm to facilitate the disassembly, transportation, and replacement of parts of the equipment. Alternatively, in another embodiment, the second shielding cover is integrally formed with the liquid inlet component and / or support arm.

[0227] In one embodiment, as shown in FIG25, the second shield 2177 includes at least a second mounting portion 21771 and a blocking portion 21772. The second mounting portion is used to connect the second shield to the liquid inlet component and / or support arm, and the blocking portion is used to block splashed cleaning liquid.

[0228] In one embodiment, as shown in Figures 24-26, the second mounting portion 21771 is sleeved on the outside of a portion of the liquid inlet component 21731 and a portion of the support arm 2172. Further, the second mounting portion and the liquid inlet component are detachably connected to the second shielding cover and the first nozzle through a convex-concave engagement of the third boss 217313 and the first groove 217711. The second mounting portion and the support arm are sealed together through a stepped snap-fit ​​engagement of the eighth groove 217721 and the ninth step 217211. For example, as shown in Figure 24, a third boss 217313 is provided on the second connecting portion 217312, and correspondingly, a first groove 217711 is provided on the second mounting portion 21771. The third boss can engage with the first groove to achieve a detachable connection between the second shielding cover and the first nozzle.

[0229] In one embodiment, the support arm is provided with an insertion interface 21721 at one end near the first nozzle. Preferably, the insertion interface is inclined, and a connecting baffle 21722 is provided at the insertion interface in the direction of extension towards the first nozzle. The first insertion hole 217221 is provided on the connecting baffle 21722.

[0230] In one embodiment, the liquid inlet component 21731 further includes a first connecting portion 217311 and a second connecting portion 217312. The first connecting portion 217311 is used to connect to the nozzle 21732, and the second connecting portion 217312 is used to connect to at least the support arm 2172 and / or the second shielding cover 2177. The second connecting portion, the first connecting portion, and the nozzle are in fluid communication. In one embodiment, the inner cavity of the first connecting portion extends substantially vertically, and the inner cavity of the second connecting portion extends substantially horizontally. The first connecting portion and the second connecting portion are connected and their inner cavities are in communication. The first connecting portion is used to change the flow direction of liquid from the second connecting portion from a substantially horizontal direction to a substantially vertical direction. The nozzle is mounted on the first connecting portion and rotates substantially vertically.

[0231] In one embodiment, at least a portion of the second connecting portion extends into at least a portion of the support arm; or, at least a portion of the second connecting portion is fitted over at least a portion of the support arm. Alternatively, in another embodiment, at least a portion of the second connecting portion extends into at least a portion of the second cover; or, at least a portion of the second connecting portion is fitted over at least a portion of the second cover. Alternatively, in another embodiment, at least a portion of the second connecting portion extends into both the support arm and the second cover; or, at least a portion of the second connecting portion extends over both the support arm and the second cover.

[0232] In one embodiment, when a third water nozzle 217318 is provided on the liquid inlet component, the third water nozzle is provided on the first connecting part 217311.

[0233] In one embodiment, the second connecting portion 217312 includes a flow guide portion 2173121 and a third mounting portion 2173122. One end of the flow guide portion is connected to the first connecting portion, and the other end is connected to the third mounting portion. The third mounting portion is at least used to connect to the support arm and / or the second shielding cover. The third mounting portion, the flow guide portion, and the first connecting portion are in fluid communication with the nozzle.

[0234] In one embodiment, the cross-section of the second connecting portion 217312 is larger than the cross-section of the first connecting portion 217311; or, the diameter of the second connecting portion is larger than the diameter of the first connecting portion. For example, the diameter gradually decreases from the second connecting portion to the first connecting portion to form a high-speed water flow. For example, in a specific embodiment, as shown in the figure, the cross-section of the third mounting portion 2173122 is larger than the cross-section of the guide portion 2173121; or, the diameter of the third mounting portion is larger than the diameter of the guide portion. Since the diameter of the third mounting portion is larger than the diameter of the guide portion, when the fluid flows from the larger diameter to the smaller diameter, the fluid is further accelerated to form a high-speed fluid. This setup eliminates the need for additional pressurization components, such as booster pumps, elevated water tanks, compressors, etc., to achieve fluid acceleration, resulting in a simple structure.

[0235] In one embodiment, in the vertical direction, the lowest point of the nozzle is lower than the lowest point of the second mounting portion; or, the highest point of the nozzle is higher than the highest point of the second mounting portion, so that the second mounting portion can only be fitted onto the liquid inlet component from one end of the second connecting portion of the liquid inlet component, and cannot be fitted onto the liquid inlet component from one end of the first connecting portion.

[0236] When installing the second shielding cover 2177, the first nozzle 2173, and the support arm 2172, firstly, slide the second mounting portion 21771 of the second shielding cover onto the second connecting portion of the liquid inlet component 21731 until at least a portion of the second shielding cover is fitted onto the outside of the guide portion, exposing the second insertion hole; then, insert the second connecting portion 217312 of the liquid inlet component along the side of the support arm where the insertion interface 21721 is located into the inside of the support arm until the second insertion hole 217314 on the second connecting portion 217312 is aligned with the first insertion hole 217221 on the connecting baffle. Insert the insertion pins sequentially into the first insertion hole 217221 and the second insertion hole 217314 to lock and position the first nozzle and the support arm, completing the installation and fixation of the first nozzle and the support arm; finally, slide the second shielding cover 2177 so that the second mounting portion 21771's second mounting portion 21731... A groove 217711 engages with the third protrusion 217313 of the second connecting part 217312 (to fix the second shielding cover to the first nozzle), while the eighth groove 217721 at one end of the second mounting part is sealed to the ninth step 217211 (to fix the second shielding cover to the support arm). At the same time, the second mounting part of the second shielding cover covers the plug-in post to prevent it from being exposed, thus completing the installation and fixation of the second shielding cover. When disassembling, first slide the second shielding cover towards the nozzle or away from the support arm, so that the third protrusion 217313 disengages from the first groove 217711 and the ninth step 217211 disengages from the eighth groove 217721. Then, the plug-in post is exposed. Pull out the plug-in post 21737 to separate the liquid inlet component from the support arm. Finally, remove the second shielding cover 2177 from the second connecting part 217312.

[0237] During use, the second mounting part can shield the plug-in structure, which can protect the plug-in structure, prevent the plug pin from sliding out of the plug-in hole, and prevent users or external structures from accidentally touching the plug-in structure; at the same time, the blocking part rotates synchronously with the support arm, always facing the direction of water splash, intercepting the water splash generated when the first nozzle 2173 sprays, and preventing it from splashing onto the base station, the ground, or the user.

[0238] In one embodiment, a chamfer is provided at the end of the third mounting part away from the nozzle to make the assembly process smoother.

[0239] In one embodiment, the second shielding cover 2177 and the support arm 2172 form a sealed connection through a stepped fit, and a chamfered structure is provided at the step to guide assembly. For example, as shown in FIG27, a chamfer is provided at the connection between the second mounting part and the support arm. By adopting a stepped sealing fit between the second shielding cover 2177 and the support arm 2172 and supplementing it with a chamfered guiding structure, the assembly process is smoother, the contact point is more tightly sealed, which can effectively prevent liquid from seeping into the support arm, protect the plug-in structure from water erosion or accidental contact, and ensure the stability and durability of the nozzle assembly during long-term operation.

[0240] In one embodiment, the first nozzle is stationary relative to the base station body, and the first nozzle is passively inserted into the first filter box or removed from the pool robot by the movement of the pool robot through the fourth inlet.

[0241] In one embodiment, the first nozzle is movably disposed relative to the base station body, and the first nozzle has an extended position and a retracted position, and the first nozzle can switch between the retracted position and the extended position.

[0242] In one embodiment, when the first nozzle moves actively or passively to the extended position, its nozzle is positioned above at least a portion of the second filter box of the pool robot.

[0243] It should be noted that "the first nozzle is stationary or fixed relative to the base station body" refers to the liquid inlet component (such as the first delivery pipe) of the first nozzle being stationary or fixed relative to the base station body, not the nozzle of the first nozzle being stationary or fixed relative to the base station body. "The first nozzle is movable relative to the base station body" means that the liquid inlet component (such as the first delivery pipe) of the first nozzle is movable relative to the base station body, not the nozzle being movable relative to the base station body.

[0244] In one embodiment, as shown in Figures 28-29, 31-32, 37, and 84, the second cleaning component further includes a support base 2171, through which a support arm is mounted on the base station body. For example, one end of the support base is mounted on the base station body, and the other end is detachably or non-detachably connected to the support arm. For example, one end of the support base is mounted on the top or side wall of the base station body.

[0245] In one embodiment, the first nozzle 2173 has an extended position and a retracted position relative to the support base or base station body. When the first nozzle moves from the retracted position to the extended position, the first nozzle extends from outside the pool robot into the first body through the fourth inlet. At this cleaning position, the first nozzle can spray liquid onto the first filter box to clean the first filter box. When the first nozzle moves from the extended position to the retracted position, the first nozzle exits outside the pool robot through the fourth inlet.

[0246] Furthermore, in some embodiments, the first nozzle is rotatably mounted on the base station body, and the first nozzle can switch between an extended position and a retracted position by rotation. For example, a support arm drives the first nozzle to rotate synchronously, and the support arm can pivot relative to the base station body to allow the first nozzle to extend into the first filter box or retract from the pool robot. For example, the support arm is rotatably mounted on a support base, which is fixed to the base station body; or, no support base is provided, and the support arm is rotatably connected to the base station body.

[0247] For example, in some embodiments, the first nozzle rotates horizontally about a generally vertical axis so that, during rotation, the first nozzle rotates into or out of the first body via the fourth inlet. For example, as shown in FIG35, the fourth inlet is a second water inlet, and the first nozzle rotates about a generally vertical axis to switch between an extended position and a retracted position.

[0248] Alternatively, in other embodiments, the first nozzle rotates vertically about a generally horizontal axis, such that during rotation, the first nozzle rotates into or out of the first body via a fourth inlet. For example, the fourth inlet is a pick-and-place port, and the first nozzle rotates about a generally horizontal axis to switch between an extended position and a retracted position. Alternatively, in other embodiments, the first nozzle rotates about a third axis, which intersects the horizontal axis but is not a vertical axis.

[0249] In some embodiments, the first nozzle rotates from the retracted position to the extended position by a first angle. The first angle can be any angle between 0 and 360 degrees, for example, approximately 10, 15, 30, 45, 52, 53, 60, 75, 80, 85, 90 degrees, etc. Conversely, the first nozzle rotates approximately from the extended position to the retracted position by a second angle, the second angle being any angle between 0 and 360 degrees. The sum of the first and second angles can be 0 degrees (i.e., the direction of rotation of the first nozzle from the retracted position to the extended position is opposite to the direction of rotation of the first nozzle from the extended position to the retracted position), or 180 degrees (i.e., the direction of rotation of the first nozzle from the retracted position to the extended position is the same as the direction of rotation of the first nozzle from the extended position to the retracted position); or other angles between 0 and 360 degrees.

[0250] In one specific embodiment, as shown in FIG36, the first nozzle 2173 rotates from the retracted position C to the extended position D by a first angle, and rotates from the extended position D to the retracted position C by a second angle. The direction and angle of the two rotations can be the same or different. For example, the first angle is 52 degrees, the second angle is -52 degrees, and the sum of the first angle and the second angle is 0 degrees.

[0251] In other embodiments, the first nozzle is retractably mounted on the base station body, and the first nozzle can switch between an extended position and a retracted position by telescopic movement. For example, the support arm drives the first nozzle to extend, so that the first nozzle extends into the first body; or, the support arm drives the first nozzle to retract, so that the first nozzle exits the first body.

[0252] Furthermore, in some embodiments, the first nozzle performs a telescopic movement in the horizontal direction. For example, when the fourth inlet is the second water inlet, the first nozzle performs a telescopic movement in the horizontal direction to extend into the first body through the second water inlet, or to exit the first body from the second water inlet.

[0253] Alternatively, in some embodiments, the first nozzle retracts or extends vertically. For example, when the fourth inlet is a pick-and-place port, the first nozzle retracts or extends vertically to pass through the pick-and-place port into the first body, or to exit the first body from the pick-and-place port.

[0254] In other embodiments, the first nozzle can extend and retract in a fifth direction, which intersects both the vertical and horizontal directions, allowing the first nozzle to pass through the fourth inlet and extend into or exit the first body. For example, the fifth direction may intersect the horizontal direction at angles of 5, 10, 15, 20, 30, 45, 60, 75, or 85 degrees.

[0255] In some embodiments, when the first nozzle sprays liquid into the first filter box, the nozzle is positioned above at least a portion of the second filter box, causing the liquid sprayed by the nozzle to fall downwards into the second filter box along with the debris in the first filter box. For example, when the first nozzle sprays liquid into the first filter box, the nozzle 21732 is positioned at the center of the first filter box, i.e., at the intersection of the diagonals, position E.

[0256] In some embodiments, the maximum rotation path of the first nozzle 2173 is related to the width of the second inlet 1032 (the distance between A and B). For example, if the line connecting the rotation center of the first nozzle to point A is L3 and the line connecting it to point B is L4, then the maximum rotation angle of the first nozzle inside the pool robot is the included angle α formed by L3 and L4.

[0257] In some embodiments, the liquid inlet component includes at least one second liquid inlet assembly 2179, the first nozzle 2173 is in fluid communication with the second liquid inlet assembly 2179 and the second liquid inlet assembly is in fluid communication with an external water supply component to provide cleaning liquid to the first nozzle.

[0258] For example, in some embodiments, a first nozzle is rotatably mounted on the base station body relative to a second liquid inlet assembly, and the first nozzle can be switched between a first position and a second position by rotation.

[0259] In one specific embodiment, at least one end of a second liquid inlet component is rotatably embedded in one end of a first liquid inlet component, or rotatably sleeved on one end of the first liquid inlet component, so that the inner cavity of the second liquid inlet component communicates with the inner cavity of the first liquid inlet component. When a rotatable embedded fit is used, one end of the second liquid inlet component is a cylindrical structure adapted to the inner cavity of the first liquid inlet component; when a rotatable sleeve fit is used, one end of the second liquid inlet component can be an annular sleeve structure. Both fit methods ensure that the inner cavities of the two components are coaxially aligned and that fluid communication is uninterrupted during rotation.

[0260] Furthermore, in some embodiments, the second cleaning component further includes at least one driving component 2178, which drives the first nozzle to switch between a first position and a second position, such that when the first nozzle moves from the second position to the first position, the first nozzle extends from outside the pool robot into the pool robot to spray liquid onto the first filter box, and when the first nozzle moves from the first position to the second position, the first nozzle retracts outside the pool robot to avoid the robot stopping or leaving the base station.

[0261] In one specific embodiment, as shown in FIG40, the second cleaning assembly 2170 further includes a first liquid inlet assembly 2180. The first liquid inlet assembly includes at least a first liquid inlet component 21801, and the second liquid inlet assembly 2179 includes at least a second liquid inlet component 21791. One end of the first liquid inlet component and one end of the second liquid inlet component are rotatably connected, and the other end of the first liquid inlet component is connected to the first nozzle. The other end of the second liquid inlet component is used to connect to the water supply component. The drive assembly drives the first liquid inlet component to rotate relative to the second liquid inlet component. This arrangement allows the first nozzle 2173 to rotate around the connecting axis with the first liquid inlet component 21801 without affecting the stable delivery of liquid. The power of the drive assembly 2178 directly acts on the first liquid inlet component 21801, causing it and the first nozzle 2173 to switch positions in the same manner of movement.

[0262] In the above embodiment, the water supply component, the second liquid inlet component, the first liquid inlet component, and the first nozzle are sequentially fluidly connected to form a fourth water path, thereby delivering clean water to the first nozzle, and the first nozzle sprays liquid onto the first filter box to clean the first filter box.

[0263] In some embodiments, the second liquid inlet component can be fixed to the faucet, shower head or water pump by one or more detachable connection methods such as threaded connection (with waterproof seal), quick-connect connector (quick-connect male and quick-connect female), snap-fit ​​connection, pagoda connector + hose clamp connection, magnetic connection, flange connection, etc.

[0264] In some embodiments, the user can manually or automatically control the faucet to open or close, thereby controlling the first nozzle to spray liquid onto or stop spraying liquid onto the first filter box.

[0265] Alternatively, in other embodiments, the second cleaning component further includes at least one valve located on the fourth water line, upstream of the first nozzle, for connecting or disconnecting the water flow between the faucet (or cleaning water source) and the first nozzle, thereby controlling the first nozzle to spray liquid onto or stop spraying liquid onto the first filter box. Due to the valve, the faucet can be normally open, and the processor on the base station or pool robot controls the opening or closing of the valve to control the first nozzle to start or stop spraying liquid. In this embodiment, the faucet is normally open, eliminating the need for manual control by the user, further eliminating the need for user intervention during the cleaning process of the first filter box; or, in other words, no faucet is required between the water supply component and the first nozzle. The valve can be located on at least one of the support arm, support base, and the pipeline between the first nozzle and the faucet. In some embodiments, the valve can be selected as a one-way valve, for example, at least one of a solenoid valve, baffle valve, ball valve, butterfly valve, etc.

[0266] In some embodiments, the valve may be disposed on the first inlet component and / or the second inlet component. For example, in some embodiments, the valve is disposed on the first delivery pipe, the support arm, or the first connecting pipe; or, the inlet end of the valve is connected to the support arm and the outlet end of the valve is connected to the first delivery pipe; or, the inlet end of the valve is connected to the first connecting pipe and the outlet end of the valve is connected to the support arm. In other embodiments, the valve is disposed on the second connecting pipe, the second delivery pipe, or the third delivery pipe; or, the inlet end of the valve is connected to the second delivery pipe and the outlet end of the valve is connected to the second connecting pipe; or, the inlet end of the valve is connected to the third delivery pipe and the outlet end of the valve is connected to the second connecting pipe.

[0267] For example, in one specific embodiment, the second liquid inlet component further includes at least one one-way valve, which is provided on the second liquid inlet component to allow water from the water supply component to flow unidirectionally from the second liquid inlet component to the first liquid inlet component. This arrangement ensures that the movement path of the liquid is always maintained in a single direction, from the external water supply component into the second liquid inlet component 21791 to the first liquid inlet component 21801.

[0268] In one specific embodiment, as shown in Figures 39, 40, 41, and 42, the second liquid inlet component includes at least a second connecting pipe, one end of which is rotatably connected to the first liquid inlet component; the second liquid inlet component also includes a second delivery pipe, one end of which is connected to the second connecting pipe, and the other end of which is used to connect to the water supply component; a one-way valve is provided on the second connecting pipe or the second delivery pipe; or, the inlet end of the one-way valve is connected to the second delivery pipe, and the outlet end of the one-way valve is connected to the second connecting pipe.

[0269] In some embodiments, the second delivery pipe 21793 can be a rigid pipe, a flexible pipe, or an explosion-proof pipe, etc., so that the liquid circuit can maintain a stable connection under different water supply environments and installation conditions, and provide high safety under high-speed impact or external force pulling.

[0270] In some embodiments, the drive component may be disposed within the base station body or within the support base. The drive component includes, but is not limited to, motor drive, hydraulic drive, pneumatic drive, magnetic drive, mechanical drive, etc.

[0271] For example, in some embodiments, the drive assembly includes a motor 2174 disposed within a support base. The motor is rotatably connected to the first nozzle, and drives the first nozzle to rotate to switch between an extended position and a retracted position. In some embodiments, the drive assembly may employ a DC motor, a brushless motor, a stepper motor, or a geared motor as a power source.

[0272] Alternatively, in some embodiments, the drive assembly further includes at least one transmission assembly disposed between the drive assembly and the first nozzle, for transmitting the driving force provided by the drive assembly to the first nozzle to achieve rotation of the first nozzle. The transmission assembly may be configured as a gear mechanism, linkage mechanism, cam mechanism, etc.

[0273] In one specific embodiment, as shown in Figures 44, 47, and 56, the drive assembly 2178 includes at least a motor 2174 and at least one transmission assembly 2181. The transmission assembly 2181 includes at least a second transmission wheel 21811, which is connected to the first liquid inlet component. The motor drives the second transmission wheel to rotate, thereby driving the first liquid inlet component and the first nozzle to rotate. When the motor drives the second transmission wheel to rotate around a preset axis, the transmission assembly structure drives the first liquid inlet component to rotate synchronously, thereby driving the support arm and the first nozzle to switch between a first position and a second position. The rotation process does not affect the liquid delivery function of the first liquid inlet component. Furthermore, the second transmission wheel is rotatably sleeved on the second liquid inlet component. One end of the second liquid inlet component passes through the second transmission wheel and is rotatably connected to one end of the first liquid inlet component. The second transmission wheel is drively connected to the first liquid inlet component, so that the motor drives the second transmission wheel to rotate, thereby driving the first liquid inlet component and the first nozzle to rotate and switch between the first position and the second position.

[0274] In some embodiments, the transmission assembly further includes at least one first transmission wheel, the output shaft of the motor is connected to the first transmission wheel, and the first transmission wheel is drivingly connected to a second transmission wheel. In some embodiments, the first transmission wheel and the second transmission wheel transmit power through any one or a combination of gear meshing transmission, belt transmission, sprocket transmission, and track transmission; furthermore, the transmission assembly also includes at least one third gear to change the transmission direction or adjust the reduction ratio.

[0275] For example, in some embodiments, as shown in Figures 87, 88, 89, and 32, the first transmission wheel is a first gear 2175, and the second transmission wheel is a second gear 2176. The first gear is fixed to the motor output shaft, and the second gear is installed at one end of the support arm. The first gear and the second gear mesh. When the motor drives the first gear to rotate, it drives the second gear and the support arm connected thereto to rotate, thereby driving the first nozzle to rotate to switch between the extended position and the retracted position.

[0276] For example, in one specific embodiment, as shown in FIG44, the first liquid inlet component 21801 includes at least a support arm 2172, one end of which is rotatably connected to one end of the second liquid inlet component 21791 and forms fluid communication, and the other end is detachably connected to the first nozzle 2173; further, the transmission assembly is driven to the support arm, and the motor 2174 drives the transmission assembly 2181 to rotate so as to drive the first liquid inlet component and the first nozzle to rotate synchronously relative to the second liquid inlet component.

[0277] In some embodiments, the support arm is a one-piece hollow tube; or, the support arm is composed of multiple segments connected by a sealed pivot. In some embodiments, the support arm and the first nozzle may be connected by a snap-fit ​​connection, a threaded connection, or a quick-release structure to facilitate daily maintenance and disassembly / cleaning. In other embodiments, the support arm and the second liquid inlet component are connected by a rotary joint, a sealed bearing, or a spherical seal structure to prevent leakage at the connection.

[0278] In one specific embodiment, as shown in Figures 44, 45, 54, 55, 56, 68, and 69, the first liquid inlet component further includes a first connecting pipe 21784. One end of the first connecting pipe is rotatably connected to one end of the second liquid inlet component, and the other end of the first connecting pipe is fixedly connected to one end of the support arm. The first connecting pipe is connected to a transmission assembly for transmission, thereby connecting the support arm to the transmission assembly. When the motor drives the transmission assembly to rotate, the first connecting pipe drives the support arm to rotate around the axis of the second liquid inlet component, thereby causing the first nozzle to switch positions. In some embodiments, the first connecting pipe adopts an integrally formed or segmented hollow pipe structure.

[0279] In one specific embodiment, one end of the first connecting tube is rotatably sleeved on or embedded in one end of the second liquid inlet component; the other end of the first connecting tube is sleeved on or embedded in one end of the support arm, so that the inner cavity of the first liquid inlet component, the inner cavity of the first connecting tube, and the inner cavity of the support arm are sequentially connected.

[0280] In one specific embodiment, as shown in FIG43, the support arm 2172 includes a first connecting arm 21724 and a second connecting arm 21725. One end of the second connecting arm forms a transmission engagement with the transmission assembly to receive rotational force. One end of the first connecting arm intersects and is fixedly connected to the other end of the second connecting arm to change the direction of water flow within the second connecting arm. The other end of the first connecting arm is connected to the first nozzle. When the second connecting arm rotates with the transmission assembly, it drives the first connecting arm and the first nozzle to rotate synchronously around the axis of the second liquid inlet component to switch between a first position and a second position. In some embodiments, the intersection angle between the first connecting arm and the second connecting arm can be a right angle, an acute angle, or an obtuse angle to meet different spray angle requirements.

[0281] In some embodiments, as shown in FIG44, the first liquid inlet component 21801 further includes at least one first delivery pipe 21802, one end of which is connected to the other end of the support arm, and the other end of which is connected to the first nozzle. Water from an external water source or a pool first flows into the first delivery pipe, and then the liquid flows through the first delivery pipe to the nozzle, which is used to spray liquid into the first filter box. When the first nozzle sprays liquid into the first filter box, the nozzle is positioned above at least a portion of the second filter box, causing the liquid sprayed by the nozzle to fall downwards into the second filter box from above, along with debris in the first filter box.

[0282] For example, in some embodiments, the nozzle is provided with at least one powered jet nozzle (e.g., a first jet nozzle), from which liquid is ejected to form a high-speed liquid, driving the nozzle to rotate at least relative to the first delivery pipe. The powered jet nozzle is configured such that the ejected liquid generates a tangential thrust while producing a high-speed direct current flush, driving the nozzle to rotate continuously about its own axis.

[0283] In other embodiments, the nozzle is further provided with at least one non-powered spray nozzle (e.g., a second spray nozzle), from which liquid cannot drive the nozzle to rotate relative to the first delivery pipe. The non-powered spray nozzle is used to spray liquid into the area of ​​the first filter box to supplement the cleaning blind spots of the powered spray nozzle.

[0284] For example, in some embodiments, the first delivery pipe includes a first connection portion 217311 and a second connection portion 217312, the first connection portion being used to connect to a nozzle, and the second connection portion being used to connect to at least a support arm and / or a second shielding cover, the second connection portion and the first connection portion being in fluid communication with the nozzle.

[0285] Furthermore, in some embodiments, at least a portion of the first delivery pipe near the first nozzle (such as the first connecting portion or the guide portion) has a longitudinal cross-sectional area smaller than the longitudinal cross-sectional area of ​​the first delivery pipe near the corresponding region of the support arm (such as the second connecting portion), thereby forming a liquid delivery path that gradually narrows from the support arm to the first nozzle. In specific embodiments, the first delivery pipe can be a rigid pipe or a flexible pipe, etc. In some embodiments, the first delivery pipe can be a multi-segment structure or a one-piece molded structure. In some embodiments, the first delivery pipe can be a tapered pipe or a constant-diameter pipe.

[0286] In some embodiments, when the motor 2174 is not turned on, the user can manually drive the support arm to rotate or extend the first nozzle, thereby switching the first nozzle between the extended and retracted positions. For example, when the user wants to manually intervene to drive the first nozzle to rotate; or when the first nozzle fails to switch between the retracted and extended positions, the user can manually drive the first nozzle to rotate, thereby switching the first nozzle between the retracted and extended positions.

[0287] As a preferred example of this application, the first nozzle can be driven by a motor or manually. The drive assembly 2178 also includes a clutch structure configured to disconnect the motor drive connection during manual operation. As the core switching mechanism between the two drive modes, the clutch structure can stably transmit torque during motor drive and automatically disengage the power coupling during manual operation, thereby preventing structural damage to the internal gear system of the motor caused by human operation and significantly improving the safety and service life of the system.

[0288] For example, in some specific embodiments, as shown in FIG55, the drive assembly further includes a clutch mechanism 21812. The clutch mechanism can be assembled between the first liquid inlet component and the second transmission wheel, so that when the motor is driven (i.e., when the motor is running), the first liquid inlet component and the second transmission wheel have a first state of synchronous rotation; and a second state when the motor is not driven (i.e., when the motor is not running but under the action of an external driving force (e.g., manual drive), the first liquid inlet component rotates relative to the second transmission wheel. That is, the clutch mechanism has two working states: the first state is when the motor outputs power, the clutch mechanism fixes the first liquid inlet component and the second transmission wheel, and the two rotate synchronously; the second state is when the motor stops driving and the first liquid inlet component is subjected to an external driving force, the clutch mechanism releases the fixation between the first liquid inlet component and the second transmission wheel, allowing the first liquid inlet component to rotate independently relative to the second transmission wheel.

[0289] In some embodiments, the clutch mechanism may employ a ball pin slot structure to allow the ball pin to automatically slip when the torque exceeds a threshold, or a friction clutch structure in which an elastic pressure plate and meshing teeth cooperate to generate relative sliding under external force, or a magnetic attraction structure to allow separation and relative rotation when the magnetic attraction force is insufficient.

[0290] In some specific embodiments, as shown in Figures 49, 50-53, and 54-64, the clutch mechanism 21812 includes at least one telescopic component 21786 and at least two first mating members. The at least two first mating members are spaced apart along the rotation direction of the first liquid inlet component. Each first mating member 21814 has a recessed area 218141, and a protruding area 218142 is formed between two adjacent first mating members. One of the telescopic component and the first mating member is disposed on the second transmission wheel, and the other is disposed on the first liquid inlet component. In the first state, the telescopic component is embedded in the recessed area so that the first liquid inlet component rotates synchronously with the second transmission wheel. In the second state, the telescopic component can pass through at least one protruding area and rotate from the previous recessed area to the next recessed area, so as to allow the first liquid inlet component to rotate independently relative to the second transmission wheel under the action of external force.

[0291] In some embodiments, the telescopic component may be in the form of an elastic push rod, with a spring providing preload so that it naturally embeds into the recessed area when there is no external force interference; in other embodiments, the telescopic component may be a sliding column or a structure with a flexible deformable section; and the multiple first mating parts may be evenly distributed or non-equidistantly arranged; the raised area formed between adjacent first mating parts may be a stepped slope or an arc surface, etc.

[0292] In one specific embodiment, as shown in FIG53, the first mating component 21814 is a first concave tooth 218143, the groove of each first concave tooth forms a recessed area 218141, and the tooth tip between two adjacent first concave teeth forms a first convex tooth 218144, i.e., a raised area 218142. Further, one of the telescopic component and the first concave tooth is assembled on the end face or outer periphery of the second transmission wheel 21811, and the other is assembled on the corresponding end face or outer periphery of the first liquid inlet component 21801; in the first state, the telescopic component 21786 is embedded in the groove of the first concave tooth 218143 to achieve circumferential fixation, so that the first liquid inlet component and the second transmission wheel rotate synchronously; in the second state, the telescopic component overcomes its own elastic force under the action of external force, disengages from the current groove, slides along the tooth tip of the first convex tooth, and then embeds into the groove of the adjacent first concave tooth, so as to realize the independent rotation of the first liquid inlet component 21801 relative to the second transmission wheel 21791. In some embodiments, the first concave teeth may be arranged at equal intervals or at non-equal intervals. In some embodiments, the sidewalls of the first concave teeth may be designed as straight walls, inclined walls, or composite curved surfaces. In some embodiments, the first convex teeth may be pointed or arc-shaped.

[0293] In some specific embodiments, as shown in Figures 59 and 60, the first mating component 21814 consists of grooves or holes circumferentially spaced along the rotation direction of the first liquid inlet component. The groove cavity or the inner cavity of the hole forms a recessed area 218141, and the solid area between two adjacent grooves or holes forms a raised area 218142. In some embodiments, the groove can be a straight groove, an arc groove, a conical groove, or a closed hole, a semi-through hole, or a stepped hole. In some embodiments, the raised area can be arc-shaped, pointed, planar, etc. In some embodiments, the grooves and raised areas can be arranged at equal or unequal intervals.

[0294] In some specific embodiments, as shown in Figures 50, 51, 57, 59, and 60, the first connecting pipe 21784 is provided with an outwardly extending first boss 217841, and the second transmission wheel 21811 is provided with a second boss 21815 distributed opposite to the first boss 217841. One of the telescopic component and the first mating component is assembled on the first boss, and the other is assembled on the second boss. In some embodiments, the first boss may be integrally formed on the first liquid inlet component, or it may be a separate component fixedly connected to its outer periphery. In some embodiments, the second boss may be integrally formed on the second transmission wheel, or it may be a separate component fixedly connected to its outer periphery. In some embodiments, a groove, hole, or tooth may be formed on the first boss, and the telescopic component may be disposed on the second boss; or, a groove, hole, or tooth may be disposed on the second boss, and the telescopic component may be disposed on the first boss. In some embodiments, the shapes of the first boss and the second boss may be wedge-shaped, annular, fan-shaped, or multi-segmented structures, etc.

[0295] In some specific embodiments, as shown in Figures 56, 57, and 89, the second transmission wheel 21811 is the second gear 2176, the second tooth 21816 is located on one end of the second gear, the second boss is disposed on one end of the second gear, and the distribution area of ​​the second boss avoids the area where the second tooth of the second gear is located.

[0296] In some specific embodiments, as shown in Figures 52 and 35, the telescopic assembly 21786 includes at least a telescopic head 217861 and at least one elastic element 217865. The elastic element applies a preload, elastic force, or bias force to the telescopic head. Under the action of the preload, elastic force, or bias force, the telescopic head tends to remain within the recessed area (without external force). When the telescopic head abuts against the protruding area 218142, the elastic element deforms to store energy. When rotating to the next recessed area 218141, the elastic element releases the elastic force, allowing the telescopic head to re-enter the current recessed area. That is, in the first state, at least a portion of the telescopic head extends into the recessed area; in the second state, the telescopic head can pass through at least one protruding area and rotate from the previous recessed area to the next recessed area. The telescopic head retracts to abut against the protruding area, forcing the elastic element to deform and store energy. When the telescopic head rotates to the next recessed area, the elastic element releases the stored energy, allowing at least a portion of the telescopic head to extend into the current recessed area. In actual use, in the initial state, as shown in Figure 61, the ball head of the telescopic head abuts into the recessed area 218141, and the telescopic head is in the first state. Under the action of external force, the telescopic head rotates together with the support arm, and the telescopic head squeezes the elastic element 217865 to make a retracting movement, and then abuts against the protruding area 218142. At this time, the telescopic head is in the second state, as shown in Figures 63 and 64. Then the telescopic head rotates further with the support arm to the next recessed area 218141, and the ball head makes an extension movement under the action of the elastic element, so that at least part of the ball head extends into the recessed area. At this time, the telescopic head returns to the first state, and its structural form is shown in Figure 61.

[0297] In some embodiments, the telescopic assembly further includes a third mounting base 217866, a first mounting cavity 217867 having at least one open end, and a telescopic head slidably disposed at least at the open end of the mounting cavity; an elastic element is disposed within the first mounting cavity; in a first state, at least a portion of the telescopic head is located outside the open end to extend into a second recessed area; in a second state, at least a portion of the telescopic head retracts into the first mounting cavity, allowing the telescopic head to pass through a protruding area; when the telescopic head rotates to the next recessed area, at least a portion of the telescopic head extends out of the open end to extend into the current recessed area.

[0298] In some embodiments, the telescopic head can be cylindrical, spherical, toothed, frustum-shaped, or irregularly shaped. In other embodiments, the elastic element can be a compression spring, leaf spring, bending spring, rubber elastomer, or magnetic elastic element. In some embodiments, the elastic element can be located inside the telescopic assembly, on the first boss, or on the second boss.

[0299] In some embodiments, when the telescopic assembly is disposed on the first liquid inlet component, one end of the elastic element is connected to the first liquid inlet component and the other end is connected to the telescopic head; or, in another embodiment, when the telescopic assembly is disposed on the second transmission wheel, one end of the elastic element is connected to the second transmission wheel and the other end is connected to the telescopic head. Further, when the telescopic assembly is assembled on the first boss, one end of the elastic element is engaged with the first boss or the first liquid inlet component, and the other end is engaged with the telescopic head; when the telescopic assembly is assembled on the second boss, one end of the elastic element is engaged with the second boss or the second transmission wheel, and the other end is engaged with the telescopic head, and the elastic element always applies a preload force to the telescopic head.

[0300] In some embodiments, the connection between the two ends of the elastic element 217865 and the telescopic head and the first liquid inlet component or the second transmission wheel can be direct or indirect. For example, as shown in FIG52, in one embodiment, the telescopic head 217861 is toothed, the elastic element is a compression spring, one end of the compression spring is directly connected to the telescopic head, and the other end is directly connected to the first liquid inlet component; or, in another embodiment, as shown in FIG58, FIG35, and FIG64, the telescopic head 217861 is spherical, the elastic element is a compression spring, one end of the compression spring is directly connected to the telescopic head, and the other end is indirectly connected to the first liquid inlet component. For example, the compression spring is installed inside the telescopic head, and the other end of the compression spring is indirectly connected to the first liquid inlet component through the telescopic head.

[0301] In some specific embodiments, as shown in Figures 49 and 52, the telescopic head is toothed. For example, a third tooth 217862 is provided on the telescopic head 217861. The telescopic head is also provided with a third limiting part 217863 to limit the axial movement of the telescopic head. Furthermore, the telescopic head is also provided with a sliding rod 217864. The third tooth is provided on the side of the telescopic head near the second gear 2176, and the sliding rod is provided on the telescopic head and extends away from the third tooth. Correspondingly, a first groove 217251 is provided at the end of the second connecting arm 21725 near the first boss 217841. An elastic element (such as a compression spring) is sleeved on the sliding rod and extends into the first groove. The telescopic head is embedded on the first boss and can be limited in stroke by the third limiting part.

[0302] In some specific embodiments, as shown in Figures 58 to 64, the telescopic head is spherical. For example, the telescopic component 21786 is a positioning bead 21813. The positioning bead includes a ball head (i.e., the telescopic head), an elastic element 217865, and a third mounting base. The elastic element is disposed in the first mounting cavity of the third mounting base. The ball head is slidably disposed at least at the opening end of the first mounting cavity. One end of the elastic element is connected to the ball head, and the other end is connected to the mounting base. The ball head can slide and rotate relative to the third mounting base simultaneously.

[0303] In some specific embodiments, as shown in Figures 68, 49, and 55, the first transmission wheel is a first gear 2175, the second transmission wheel is a second gear 2176, the first gear is connected to the output shaft of the motor 2174, and the second gear meshes with the first gear for transmission. In this embodiment, after the motor starts, it drives the first gear to rotate. The first gear meshes with the second gear for transmission. At this time, the elastic element 217865 pushes the telescopic head 217861 so that the third tooth 217862 or the ball head automatically embeds into the fifth groove 21761 of the second gear. The power is transmitted to the first liquid inlet component 21801 through the clutch mechanism. The motor outputs torque and transmits power steadily between it and the support arm 2172, thereby driving the support arm to drive the first nozzle to rotate. When manual intervention is required, the user can directly rotate the support arm manually. At this time, the motor is in the off state, so the motor will not drive the second gear to rotate. The fifth groove on the second gear is fixed. At this time, the support arm drives the telescopic head to overcome the elastic force of the elastic element, so that the third tooth 217862 or the ball head disengages from the fifth groove 21761 to disconnect the transmission connection, avoid reverse torque acting on the motor, and prevent damage to the motor. When the driving force is removed, the elastic element releases the stored energy and the third tooth or the ball head continues to be embedded in the fifth groove and enters the standby state. By setting up a clutch mechanism, the first nozzle can smoothly switch between motor-driven and manual-driven operation modes, thus meeting the needs of both automated operation and manual control.

[0304] Alternatively, in other embodiments, the second telescopic head is the first friction plate, and the second mating part is the second friction plate. In this case, there is no need to provide a second recessed area on the second mating part. The first liquid inlet component and the second transmission wheel have a first state and a second state only through the conversion between the static friction force and the dynamic friction force between the first friction plate and the second friction plate.

[0305] In some embodiments, a sealing assembly 21787 is provided between the first connecting pipe 21784 and the support arm 2172, and / or between the first connecting pipe 21784 and the second connecting pipe 21785. The sealing assembly may be a sealing ring, gasket, oil seal, etc.

[0306] For example, in some specific embodiments, as shown in FIG73, the first connecting pipe 21784 includes a first pipe body portion 217842, a first boss may be disposed at one end of the first pipe body portion, the first boss and the first pipe body portion are steppedly disposed, the first boss is disposed on the side near the second gear, a sixth groove 217843 is disposed on the side of the first pipe body portion away from the first boss, and a first sealing ring 217871 is disposed in the sixth groove to achieve a sealed connection between the first connecting pipe and the support arm. The first boss and the first pipe body portion may be disposed separately or integrally.

[0307] In some specific embodiments, as shown in FIG74, the second connecting pipe 21785 includes a second pipe body portion 217851. A seventh groove 217852 is provided at one end of the second pipe body portion, and a second sealing ring 217872 is provided in the seventh groove to achieve a sealed connection between the second pipe body portion and the first pipe body portion. Further, the second connecting pipe also includes a second limiting portion 217853. The second pipe body portion is embedded inside the first pipe body portion and is limited by the second limiting portion cooperating with the first boss. The other end of the second pipe body portion extends into the second gear 2176 and is connected through a first bearing, so that while the first connecting pipe rotates with the second gear, the second connecting pipe remains stationary.

[0308] In some specific embodiments, as shown in FIG45, at least two first bearings 21788 are assembled between the second gear 2176 and the second connecting pipe 21785. The two first bearings are distributed along the axial direction of the second connecting pipe 21785 to form a double bearing support. The two first bearings share the load and limit the circumferential movement of the second gear. The double support structure enables self-alignment to allow for smaller installation and rotational errors. In some embodiments, the first bearings may be deep groove ball bearings, needle roller bearings, angular contact bearings, or ceramic bearings to adapt to different load environments and corrosion resistance requirements.

[0309] In some specific embodiments, as shown in FIG45, limiting members disposed on the second gear 2176 and / or the second connecting pipe 21785 axially limit the first bearing between the second gear and the second connecting pipe. For example, the limiting members include at least one seventh step 218111 formed on the second gear and at least one eighth step 217855 formed on the second connecting pipe, so that each first bearing abuts against the corresponding step in the installed state and is limited to a preset axial position, thereby maintaining stable support and rotational engagement between the first bearing and the gear transmission assembly.

[0310] In some specific embodiments, as shown in FIG45, at least one retaining ring 21817 for axially limiting the second gear is provided between the second connecting pipe 21785 and the second gear 2176, so that the second gear is held in a preset axial position without axial displacement in the working state. In some embodiments, the retaining ring can be a metal retaining ring or an elastic retaining ring, etc. In some instances, the retaining ring can adopt a combined structure or a segmented retaining ring.

[0311] In some examples, this application also discloses an embodiment of a clutchless mechanism in which the second gear and the support arm are fixedly connected. As shown in Figures 84 to 90, the second gear drives the support arm to rotate. For example, the second gear and the support arm are fixedly engaged by a groove, a protrusion, or a screw. Further, as shown in Figures 89 and 90, a first connecting cover 21726 is provided on the side of the support arm 2172 connected to the drive assembly 2178. The first connecting cover is provided with an insertion end 21727, which can be inserted into the inner surface of the second gear 2176 to realize the connection between the second gear and the support arm. Further, the insertion end and the second gear are limited by the cooperation of the guide protrusion 217271 and the fourth groove 21763. For example, the guide protrusion is provided on the outer surface of the insertion end, and the fourth groove is correspondingly provided on the inner side of the second gear.

[0312] Furthermore, in some embodiments, the first connecting cover is also provided with a third connecting hole 217261, and the second gear is provided with a fourth connecting hole 21762 corresponding to the third connecting hole. The third connecting hole and the fourth connecting hole are fixed by connecting screws to realize the connection between the support arm and the second gear. Further, in this embodiment, the bushing 21782 is provided with a first connecting hole 217825, and the first protective cover 21711 is provided with a second connecting hole 217111 corresponding to the first connecting hole. The first connecting hole and the second connecting hole are fixed by screws to realize the connection between the bushing and the first protective cover.

[0313] In some examples, as shown in Figures 43, 46, 47, 56, and 88, the support base includes at least a motor mount 21781, which is used to mount the motor and fix it to the base station body.

[0314] In some embodiments, as shown in Figures 38, 43, 47, 56, and 90, the support base further includes a first protective cover 21711. The first protective cover 21711 is fixed to the motor mount or the base station body, and the first protective cover 21711 at least partially protrudes from the base station body or is flush with the top of the base station body; or, the first protective cover is at least partially embedded in the base station body. In some embodiments, the motor and the base station body, and the first protective cover and the motor mount or base station, can be stably connected by any of the following methods: screws, clips, welding, or sleeves.

[0315] In some embodiments, the support base further includes at least one bushing 21782, which is fixedly connected to the motor base and / or the first protective cover. For example, the first protective cover and the bushing are fixedly connected by at least one of the following methods: protrusion, groove, and screw. In some embodiments, the first protective cover is positioned by a protrusion embedded in a groove on the outer periphery of the bushing, or it can be locked by multiple screws to the threaded holes of the bushing, or the groove can be engaged with the annular flange on the outer wall of the bushing for limiting. In some embodiments, as shown in Figures 68 and 70, the bushing 21782 can be equivalent to the first protective cover, which on the one hand prevents dust, and on the other hand serves as the bushing.

[0316] In some examples, as shown in Figure 45, at least one second bearing 21783 is provided between the support arm and the first protective cover. The second bearing 21783 is used to support the rotation of the support arm 2172 relative to the first protective cover 21711 and improve rotational stability. In another embodiment, two second bearings are provided vertically between the support arm and the first protective cover.

[0317] In some embodiments, as shown in Figures 38, 43, and 56, the support base 2171 further includes a second protective cover 21712, which covers the first protective cover and is detachably connected to it. For example, the first protective cover and the second protective cover are connected by screws.

[0318] In other embodiments, as shown in Figures 43 and 56, the support base 2171 further includes a third protective cover 21713, which covers the second protective cover and is detachably connected to it. For example, the second and third protective covers are magnetically connected. In some embodiments, the top of the third protective cover is substantially flush with the top of the base station body or at least partially protrudes upward from the top of the base station body. In the base station structure provided in this application, the support base introduces a multi-layered protective assembly of a first, second, and third protective cover, forming a closed protection system that covers the base station body from the inside out. The first protective cover is fixedly installed and integrally embedded inside the base station body, protecting the internal drive structure, rotating parts, and liquid inlet connection area from external water flow, impurity particles, and user operation interference during daily use. The second protective cover is detachably installed and covers the first protective cover, allowing for quick assembly and disassembly. This enables maintenance personnel to easily remove the second protective cover without damaging the base station body, and then simultaneously remove the third protective cover, the first liquid inlet component, the first nozzle, and other structures fixed to the second protective cover for disassembly. Meanwhile, the second protective cover further shields the outer surface of the first protective cover, preventing it from aging or being damaged by long-term exposure to water splashes, sunlight, or chemical substances. The third protective cover, as the outermost protective structure, is also detachably installed and covers the second protective cover to improve the overall appearance of the base station. In some embodiments, the outer surface of the third protective cover may be provided with anti-slip textures, water-guiding ribs, or curved structures to enhance user experience and environmental adaptability. In other embodiments, a flexible sealing ring or annular water-blocking plate may be configured between any two of the first, second, and third protective covers to improve sealing performance.

[0319] In some examples of this application, as shown in Figures 91 and 92, the support base 2171 further includes a fourth protective cover 21714 for at least protecting the second connecting pipe during base station transportation. The fourth protective cover 21714 includes a flat portion 217141, a first protrusion 217142, and a receiving portion 217143. The first protrusion is disposed on the upper surface of the flat portion, and the receiving portion is disposed on the lower surface of the first protrusion and extends through the flat portion. In the installed state, the flat portion of the fourth protective cover is flush with or at least partially protrudes from the top of the base station body. During base station transportation, the first nozzle and the first liquid inlet component need to be removed from the base station body to avoid damage during transportation. At this time, the second and third protective covers can be removed simultaneously with the first nozzle and the first liquid inlet component. Since the second connecting pipe 21785 and part of the clutch mechanism are exposed, the fourth protective cover can be placed on the first protective cover to prevent dust from falling in or structural damage during transportation. At this time, the top of the second connecting pipe 21785 extends into the receiving portion 217143 on the lower surface of the first protrusion 217142. During base station installation, the fourth protective cover can be removed from the first protective cover, and then the second protective cover, the third protective cover, the first nozzle, and the first liquid inlet component can be simultaneously assembled onto the base station body.

[0320] In some embodiments, the fourth protective cover may be made of flexible or soft rubber material or elastic material, etc.

[0321] In some examples, as shown in Figures 71-76, the base station further includes a rotation limiting structure. This structure includes a limiting protrusion 217845 and a first limiting groove 217822. The limiting protrusion and the first limiting groove cooperate to restrict the rotation path of the support arm 2172, allowing the first nozzle to switch between a retracted position and an extended position. In the examples of this application, the limiting protrusion is disposed on the support arm or on a structure that moves synchronously with the support arm, and the first limiting groove is disposed on the base station body or on a structure fixed relative to the base station body. In a specific example of this application, the limiting protrusion is disposed on the first boss 217841 of the first connecting pipe, and the first limiting groove is disposed on the bushing 21782. A first limiting boss 217823 and a second limiting boss 217824 are formed on opposite sides of the first limiting groove to limit the rotation range of the support arm 2172, allowing the first nozzle 2173 to switch between a retracted position and an extended position.

[0322] In some examples, as shown in Figures 43, 47, 56, 75 and 79-84, the base station also includes a positioning detection mechanism 21789. The positioning detection mechanism 21789 is disposed on the base station body or the second cleaning component and is used at least to detect whether the first nozzle 2173 has reached the preset first position and second position, so as to feed back the position signal to the control unit of the base station and assist in achieving accurate docking of the first nozzle at the target cleaning position.

[0323] In some embodiments, the positioning detection mechanism 21789 includes at least two detection elements and at least one second mating element. The two detection elements are disposed on the base station body or on a structure fixed relative to the base station body, respectively corresponding to the storage position (second position) and extension position (first position) of the first nozzle. The second mating element is disposed on the support arm or on a structure that moves synchronously with the support arm.

[0324] As a preferred example of this application, the detection element is at least one of a Hall sensor, a micro switch, a photoelectric sensor, a pressure sensor, a capacitive sensor, and an inductive sensor. The second mating element is adapted to the detection element; for example, when the detection element is a Hall sensor, the second mating element is a magnet; when the detection element is a micro switch, the second mating element is a pusher; when the detection element is a photoelectric sensor, the second mating element is a light-shielding element, etc. The position signal of the first nozzle is generated by the interaction between the detection element and the second mating element to determine whether the first nozzle is in the retracted or extended position.

[0325] In some examples, the positioning detection mechanism 21789 includes a first detection element 217891 and a second detection element 217892, as well as at least one second mating element 217893. One of the detection elements and the second mating element is disposed on the first liquid inlet component 21801, and the other is disposed on the base station body 20001. When the first detection element detects the second mating element, the first nozzle is in a first position, and when the second detection element detects the second mating element, the first nozzle is in a second position.

[0326] For example, in one specific embodiment, as shown in Figures 78 to 83, a first detection element 217891 and a second detection element 217892 are disposed on a motor base 21781 and / or a bushing. The first detection element is used to detect whether the first nozzle is in the retracted or extended position, and the second detection element is used to detect whether the first nozzle is in the extended or retracted position. A second mating element is disposed on a first connecting pipe 21784, which cooperates with the first and second detection elements to realize the position detection of the first nozzle.

[0327] This application achieves high precision and high reliability in the position recognition of the first nozzle 2173 by arranging a positioning detection mechanism 21789 consisting of "dual detection components + synchronous cooperation components". The two detection components are used to detect whether the nozzle is in the retracted position or the extended position, respectively. The detection cooperation component set on the support arm 2172 moves synchronously with it, so that its detection behavior is consistent with the actual position of the first nozzle. Regardless of whether the first nozzle is driven by a motor or manually rotated by the user, the detection result can reflect the nozzle status in real time.

[0328] In one embodiment, as shown in Figures 75-77, both the first and second detection elements are Hall sensors, which are disposed on the first limiting seat 217811 of the motor base 21781 and can be covered by the second limiting seat 217821 on the bushing 21782. The second mating element is a magnet, which can be disposed on the support arm or the first connecting tube. For example, the magnet is disposed on the first connecting tube 21784. Further, the magnet is disposed in the first mounting hole 217844 of the first boss 217841.

[0329] When the first filter cartridge needs cleaning, the first nozzle can be reset first. The drive motor is turned on, causing the first nozzle to rotate to the second position (retracted position). When the second detector detects a magnet, it indicates that the first nozzle is in the second position. Then, the drive motor causes the first nozzle to rotate from the second position to the first position (extended position). When the second detector does not detect a magnet, but the first detector does, it indicates that the first nozzle is in the first position, and the processor on the base station or pool robot can control the first nozzle to start spraying liquid. After the first filter cartridge is cleaned, the processor on the base station or pool robot can control the first nozzle to stop spraying liquid. The drive motor causes the first nozzle to rotate from the first position to the second position. When the second detector detects a magnet, but the first detector does not, it indicates that the first nozzle is in the retracted position, and then the drive motor can be turned off.

[0330] In some embodiments, the first nozzle further has a third position located between the first and second positions, wherein the third position is a dynamically changing position. For example, the third position is an intermediate position between the first and second positions.

[0331] Therefore, in some embodiments, there are at least two second mating parts; wherein, the two second mating parts are distributed at intervals along the rotation direction of the first liquid inlet component; when the first detection element abuts against the second mating part, the second detection element separates from the other second mating part, and the first nozzle is in a first position; when the first detection element separates from the second mating part, and the second detection element separates from the other second mating part, the first nozzle is in a second position; when the first detection element abuts against the second mating part, and the second detection element abuts against the other second mating part, the first nozzle is in a third position.

[0332] In one specific embodiment, as shown in Figures 78 to 83, both the first detection element 217891 and the second detection element 217892 are microswitches. There are two second mating parts, namely the first sub-matting part 2178931 and the second sub-matting part 2178932. Both the first sub-matting part and the second sub-matting part are pushers. Furthermore, the first detection element and the second detection element are disposed on the motor base, and the pushers are disposed on the first connecting pipe 21784 and are spaced apart along the rotation direction of the first connecting pipe. Furthermore, the pushers are disposed on the first boss.

[0333] As shown in Figures 78 and 79, when the first sub-component does not trigger the first detection element and the second sub-component does not trigger the second detection element, the first nozzle is in the second position, i.e., the first nozzle is in the initial state. As shown in Figures 82 and 83, when the first sub-component triggers the first detection element and the second sub-component triggers the second detection element, the first nozzle is in the third position. As shown in Figures 80 and 81, when the first sub-component triggers the first detection element and the second sub-component does not trigger the second detection element, the first nozzle is in the first position, i.e., the first nozzle is in the working state.

[0334] To implement the above triggering logic, in one specific embodiment, as shown in Figures 78, 80, and 82, the length of the first sub-fitting component is longer than the length of the second sub-fitting component. This allows the first sub-fitting component to trigger the first detection element at both the first and third positions of the first nozzle, but the second sub-fitting component can only trigger the second detection element at the third position and cannot trigger the second detection element at the first position. Alternatively, in another embodiment, along the rotation direction of the first liquid inlet component, the distance between the first sub-fitting component and the first detection element at the second position is longer than the distance between the second sub-fitting component and the second detection element at the second position.

[0335] In the above embodiments, the positioning detection mechanism can identify the first position, second position and third position of the first nozzle to accurately know the working status of the first nozzle.

[0336] In some specific embodiments, as shown in Figures 41, 42, and 43, a second delivery pipe 21793 is also provided on one side of the basic body. The second delivery pipe is connected to the first nozzle and is used to provide cleaning liquid to the first nozzle. For example, the second delivery pipe is connected to a second connecting pipe, and the connection method can be threaded, snap-fit, or plug-in. In some embodiments, the second connecting pipe can adopt a straight pipe, bent pipe, or flexible hose structure according to the internal layout of the base station.

[0337] In some specific embodiments, as shown in Figures 41 and 42, a third delivery pipe 21794 is also provided on one side of the base station body. The third delivery pipe is detachably connected to the second delivery pipe. The end of the third delivery pipe away from the second delivery pipe extends out from one side or bottom of the base station body and is used to connect to a household faucet to supply cleaning liquid to the second delivery pipe. In some embodiments, the third delivery pipe serves as the inlet for external water supply and can be a rigid pipe, corrugated hose, etc. In some embodiments, the third delivery pipe is connected to the second delivery pipe through a quick-connect coupling, threaded coupling, or locking coupling to facilitate quick disassembly or replacement during transportation, installation, and subsequent maintenance.

[0338] In some embodiments, if there is a height difference or distance difference between the faucet and the base station, at least a fourth delivery pipe may be provided between the third delivery pipe and the household faucet to connect the third delivery pipe and the household faucet.

[0339] In some specific embodiments, as shown in FIG39, a one-way valve 21792 is disposed between the second delivery pipe and the third delivery pipe to control the flow of water, thereby controlling the flow of water from the first nozzle. For example, one end of the one-way valve is detachably connected to the second delivery pipe, and the other end of the one-way valve is detachably connected to the third delivery pipe; further, one end of the one-way valve is connected to the second delivery pipe via a connecting joint; the other end of the one-way valve is connected to the third delivery pipe via a connecting joint.

[0340] In some embodiments, as shown in FIG39, a fourth mounting base 21795 is also provided on one side of the base station body, and a one-way valve 21792 (solenoid valve) is provided in the fourth mounting base 21795.

[0341] In some embodiments, the second connecting pipe and the second conveying pipe are interference-fitted; furthermore, after the second connecting pipe and the second conveying pipe are connected, a cable tie is provided on the outside of the second connecting pipe to ensure a tight connection between the two. Specifically, as shown in FIG55, a third connecting part 217854 is provided at the lower end of the second connecting pipe, and the third connecting part is fixed to the upper end of the second conveying pipe by an interference-fitting connection method of embedding or sleeve.

[0342] In one embodiment, the second cleaning component further includes a bumper to prevent the first nozzle or support arm from colliding with the pool robot during rotation. The bumper may be located on the first nozzle or support arm. The bumper may be recessed; alternatively, it may be made of soft, impact-resistant rubber. In another embodiment, the bumper may also be located on the pool robot.

[0343] In one embodiment, as shown in Figures 26 and 36, in order to avoid collision with the side wall of the second water inlet 1032 during the rotation of the support arm, the support arm or the pool robot is provided with a collision protection part 21723. For example, the collision protection part is provided at the position where the support arm contacts the side wall of the second water inlet (e.g., position A).

[0344] In some embodiments, the second cleaning component can be configured as a detachable modular structure. For example, the second cleaning component can be integrated into a whole to form a modular structure, thereby realizing modular assembly. This allows the second cleaning component to be assembled into modules separately before being installed on the base station. This makes installation and disassembly convenient and easy to produce. At the same time, it also makes it easy to disassemble or replace parts during after-sales maintenance.

[0345] The detachable and fixed connections mentioned in this application can be made by using at least one of the following methods: threaded connection, magnetic connection, snap-fit ​​connection, key pin connection, locking connection, plug connection, grooved connection, screw connection, etc.

[0346] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A base station, comprising: Base station body; The second filter box is installed on the base station body; Used to receive trash from the first filter box of the pool robot; A second cleaning component is disposed on the base station body; the second cleaning component includes... At least one first nozzle; At least one liquid inlet component; The first nozzle includes At least one nozzle is rotatably connected to the liquid inlet component; at least one first spray nozzle is provided on the nozzle, the first spray nozzle is in communication with the liquid inlet component, and the liquid sprayed from the first spray nozzle drives the nozzle to rotate relative to the liquid inlet component. The first nozzle sprays liquid onto the first filter box at least through the first spray nozzle to clean the first filter box.

2. The base station as described in claim 1, characterized in that, At least a portion of the first spray nozzle is located on the side of the nozzle.

3. The base station as described in claim 2, characterized in that, At least a portion of the first spray nozzle is located at the bottom of the nozzle.

4. The base station as described in claim 1, characterized in that, The nozzle is further provided with at least one second spray nozzle; at least a portion of the second spray nozzle is provided on the side of the nozzle and / or at least a portion is provided on the bottom of the nozzle; the liquid sprayed from the second spray nozzle cannot drive the nozzle to rotate relative to the liquid inlet component.

5. The base station as described in claim 1, characterized in that, The nozzle has a fluid cavity open at one end; The first nozzle further includes a connecting assembly for rotatably connecting the opening end of the nozzle to the liquid inlet component; The connection component includes A first mounting base is connected to the opening end of the nozzle; A second mounting base is connected to the liquid inlet component; the first mounting base is fitted over the second mounting base; or, the second mounting base is fitted over the first mounting base. A transition element is provided between the first mounting base and the second mounting base so that the first mounting base can rotate relative to the second mounting base; The inner cavity of the liquid inlet component, the inner cavity of the second mounting base, the inner cavity of the first mounting base, and the fluid cavity of the nozzle are connected to each other so that the inner cavity of the liquid inlet component is connected to the fluid cavity of the nozzle.

6. The base station as described in claim 5, characterized in that, The first mounting base and the opening end of the nozzle are connected by threads; and / or, the second mounting base is connected to the liquid inlet component by threads.

7. The base station as described in claim 1, characterized in that, The first nozzle is configured as either a hole or a slit; when the first nozzle is configured as a slit, the tangent of the first nozzle does not intersect the axis of rotation of the nozzle.

8. The base station as described in claim 1, characterized in that, The second cleaning assembly further includes at least one second shielding cover, which is disposed on the first nozzle and avoids the nozzle; When at least the nozzle extends into the pool robot through the fourth inlet and sprays liquid into the first filter box, the second shielding cover closes or blocks the fourth inlet. The pool robot also includes A fourth inlet, which communicates with the inner cavity of the first filter box; At least the nozzle extends into the first filter box through the fourth inlet for spraying liquid into the first filter box.

9. The base station as described in claim 1, characterized in that, The liquid inlet component includes At least one second liquid inlet assembly is in fluid communication with the first nozzle and is also in fluid communication with a water supply component; The second cleaning component also includes A drive component is used to drive the first nozzle to move, such that the first nozzle switches between at least a first position and a second position; When the first nozzle moves from the second position to the first position, the first nozzle extends from outside the pool robot into the pool robot to spray liquid onto the first filter box; when the first nozzle moves from the first position to the second position, the first nozzle retracts outside the pool robot.

10. The base station as described in claim 9, characterized in that, The first nozzle is rotatably mounted on the base station body relative to the second liquid inlet assembly, and the first nozzle can switch between the first position and the second position by rotating.

11. The base station as described in claim 10, characterized in that, The liquid inlet component also includes A first liquid inlet assembly; the first liquid inlet assembly includes at least a first liquid inlet component; The second liquid inlet assembly includes at least a second liquid inlet component; One end of the first liquid inlet component is rotatably connected to one end of the second liquid inlet component, and the other end of the first liquid inlet component is connected to the first nozzle; the other end of the second liquid inlet component is used to connect to the water supply component. The drive assembly drives the first liquid inlet component to rotate relative to the second liquid inlet component.

12. The base station as described in claim 11, characterized in that, The second liquid inlet component includes at least A second connecting tube, one end of which is rotatably connected to the first liquid inlet component; The second delivery pipe has one end connected to the second connecting pipe and the other end used to connect to the water supply component; The second liquid inlet assembly also includes At least one check valve allows water from the water supply component to flow unidirectionally from the second inlet component to the first inlet component; The one-way valve is installed on the second connecting pipe or the second conveying pipe; or, the inlet end of the one-way valve is connected to the second conveying pipe, and the outlet end of the one-way valve is connected to the second connecting pipe.

13. The base station as described in claim 11, characterized in that, The drive assembly includes at least a motor and at least one transmission component; The transmission assembly includes at least a second transmission wheel, which is connected to the first liquid inlet component; the motor drives the second transmission wheel to rotate, thereby driving the first liquid inlet component and the first nozzle to rotate.

14. The base station as described in claim 13, characterized in that, The drive assembly further includes a clutch mechanism, so that the first liquid inlet component and the second transmission wheel have a first state of synchronous rotation under the drive of the motor; and a second state in which the first liquid inlet component rotates relative to the second transmission wheel under the action of an external driving force but not under the drive of the motor.

15. The base station as described in claim 14, characterized in that, The clutch mechanism includes At least one telescopic component; At least two first mating parts are provided, and the at least two first mating parts are distributed at intervals along the rotation direction of the first liquid inlet component; each first mating part has a recessed area, and a raised area is formed between two adjacent first mating parts; One of the telescopic component and the first mating part is located on the second transmission wheel, and the other is located on the first liquid inlet component; In the first state, the telescopic component is embedded within the recessed area; In the second state, the telescopic component is able to rotate from the recessed area of ​​the previous first mating member to the recessed area of ​​the next first mating member by passing through at least one of the protruding areas.

16. The base station as described in claim 15, characterized in that, The telescopic component includes at least: Telescopic head; At least one elastic element; In the first state, at least a portion of the telescopic head extends into the recessed area; In the second state, the telescopic head is able to pass through at least one of the raised areas and rotate from the previous recessed area to the next recessed area; wherein the telescopic head retracts to abut against the raised area and forces the elastic element to deform to store energy; when the telescopic head rotates to the next recessed area, the elastic element releases the stored energy so that at least a portion of the telescopic head extends into the current recessed area.

17. The base station as described in claim 11, characterized in that, The second cleaning component also includes At least one second shielding cover is provided on the first liquid inlet component and rotates synchronously with the first liquid inlet component; When the first nozzle is in the first position, the first nozzle extends into the pool robot through the fourth inlet of the pool robot to spray liquid into the first filter box; The second shielding cover is used to shield the fourth inlet.

18. The base station as described in claim 11, characterized in that, The base station also includes an on-site detection mechanism, including... The detection assembly includes at least a first detection element and a second detection element; and At least two second mating parts; wherein the two second mating parts are spaced apart along the rotation direction of the first liquid inlet component; One of the detection component and the second mating component is disposed on the first liquid inlet component, and the other is disposed on the base station body; When the first detection element abuts against the second mating element, the second detection element separates from the other second mating element, and the first nozzle is in the first position; When the first detection element separates from the second mating element, and the second detection element separates from another second mating element, the first nozzle is in the second position; When the first detection element abuts against the second mating element, and the second detection element abuts against another second mating element, the first nozzle is in a third position, which is located between the first position and the second position.

19. A cleaning system, characterized in that, include Base station; the base station is any one of claims 1-18; Pool robot; The pool robot includes a first filter box; when the pool robot stops at the base station, the first nozzle sprays liquid onto the first filter box to clean the first filter box.

20. The cleaning system as claimed in claim 19, characterized in that, The first filter box is at least partially located inside the pool robot.

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