Pool cleaning device

Abstract

The utility model discloses a pool cleaning device. The pool cleaning device comprises a shell, a driving assembly and a water spraying shell. The shell is provided with a water inlet and a water outlet. The drive assembly is disposed inside the housing and includes an output shaft. The water spraying assembly is rotatably arranged on the shell and is in fluid communication with the water outlet. The water spraying assembly comprises a water spraying shell and an impeller, and the impeller is arranged in the water spraying shell and connected with the output shaft. When the pool cleaning device is used, water is driven by the driving assembly to flow into the water spraying assembly and then sprayed out of the water spraying assembly to provide power for the pool cleaning device. And a water pump does not need to be additionally provided for the pool cleaning device, so that the pool cleaning device is convenient to use.

Description

Technical Field

[0001] This application relates to the field of pool cleaning equipment, and particularly to a pool cleaning device. Background Art

[0002] With the increasing living standards, people have a growing demand for above-ground pools. Correspondingly, there is a need for some convenient and fast cleaning equipment to meet the need for cleaning pools. For above-ground swimming pools, as the usage time of the pool increases, algae, debris, leaves and other dirt will be generated inside the pool. At this time, we need to use a pool cleaning device to frequently clean the pool, especially the bottom of the pool, to maintain hygiene.

[0003] In the prior art, a pool cleaning device is usually equipped with a hydraulic drive component to drive the pool cleaning device to move inside the pool and then clean the bottom of the pool. When using the pool cleaning device, an additional water pump needs to be provided, and the water pump is connected to the hydraulic drive component through a water pipe to supply high-pressure water to the hydraulic drive component. The hydraulic drive component drives the pool cleaning device to move in the pool by means of the high-pressure water provided by the water pump. Since the water pump is arranged outside the pool and the water pipe in the pool will be wound during the movement of the pool cleaning device, this will affect the normal operation of the pool cleaning device, and thus the pool cleaning device is inconvenient to use. Summary of the Utility Model

[0004] In view of the above technical problems, this application proposes a pool cleaning device. The pool cleaning device includes: a housing, including a water inlet and a water outlet; a drive component, arranged inside the housing and including an output shaft that at least partially extends through the water outlet; and a water spraying component, rotatably arranged on the housing and in fluid communication with the water outlet, including: a water spraying housing; and an impeller, arranged inside the water spraying housing and connected to the output shaft.

[0005] In one embodiment, the housing is further provided with at least one through hole, and the pool cleaning device further includes a charging base, the charging base includes: at least one base, one of the at least one bases is arranged at the position of one of the at least one through holes; at least one charging post, one of the at least one charging posts extends vertically on one of the at least one bases, and includes: a conductive rod, the conductive rod extends vertically in a corresponding one of the at least one through holes; and a sealing layer, arranged on the conductive rod and covering at least a part of the conductive rod.

[0006] In one embodiment, at least one base includes: a first base including a first extension portion extending along a sidewall of the first base; a second base spaced apart from the first base and including a second extension portion extending along a sidewall of the second base toward the first extension portion; wherein the first extension portion and the second extension portion are spaced apart from each other, thereby defining a slot between the first extension portion and the second extension portion.

[0007] In one embodiment, the drive assembly includes: a motor housing including a first portion and a second portion sealingly connected to the first portion; and a motor assembly disposed in a second chamber defined jointly by the first portion and the second portion; wherein a conductive rod extends from the interior of the second chamber through the first portion and is sealingly connected to the first portion.

[0008] In one embodiment, the motor housing further includes a mounting plate disposed on an inner surface of the first portion and extending toward the interior of the second chamber, the mounting plate and the first portion of the motor housing defining a mounting space; the motor assembly includes: a motor including an output shaft extending vertically through a water outlet; a PCB board disposed in the mounting space and spaced apart from the first portion, a sealant being disposed between the PCB board and the first portion; a battery pack including a battery pack housing and battery cells located within the battery pack housing, a sealant being disposed between the battery pack housing and the battery cells.

[0009] In one embodiment, the housing includes an upper housing and a lower housing, a water outlet is disposed on the upper housing, a water inlet is disposed on the lower housing, and the upper housing and the lower housing are detachably connected to define a first chamber.

[0010] In one embodiment, the pool cleaning device further includes: a handle assembly disposed on the upper housing and including: a handle frame connected to the upper housing and extending downward toward the lower housing; an elastic handle disposed on the handle frame and hingedly connected to the handle frame, the handle including a boss extending toward the interior of the first chamber.

[0011] In one embodiment, the lower housing includes a flange extending toward the exterior of the first chamber, and the boss of the handle is adapted to the flange to disassemble or assemble the upper housing and the lower housing.

[0012] In one embodiment, the pool cleaning device further includes a commutation assembly, the commutation assembly including: a commutation piece disposed on the housing and including a rotating shaft and an opening having a first end wall, the commutation piece being rotatably connected to the housing through the rotating shaft; and a sliding plate including a baffle extending from a surface of the sliding plate toward the interior of the opening, the sliding plate being mounted on the opening of the commutation piece and adapted to slide relative to the commutation piece toward or away from the rotating shaft of the commutation piece; an elastic member disposed inside the opening and between the baffle and the first end wall of the opening, the elastic member being configured to switch between a compressed state and a released state.

[0013] In one embodiment, a limiting protrusion is provided on the housing. The limiting protrusion includes a first wall and a second wall extending upward in the vertical direction. When the elastic member is in a compressed state, the sliding plate abuts against the second wall, so that the commutator forms a first angle with the vertical direction. When the elastic member is in a released state, the sliding plate rotates over the second wall and abuts against the first wall, so that the commutator forms a second angle with the vertical direction. The first angle is greater than the second angle.

[0014] In one embodiment, a guide groove extending along the sliding direction of the sliding plate is provided on one of the commutator and the sliding plate, and a guide rail matching the guide groove is provided on the other of the commutator and the sliding plate.

[0015] In one embodiment, the pool cleaning device further includes: a wheel bin extending in a first direction and provided on the lower housing of the housing; a first constraint structure and a second constraint structure are respectively provided on two sides of the wheel bin in a second direction perpendicular to the first direction; and a front wheel including: a wheel body spaced apart and provided in the wheel bin; and a wheel shaft spanning the wheel bin in the second direction and including a first end and a second end. The first end of the wheel shaft is rotatably connected to the first constraint structure, and the second end of the wheel shaft swings in the first direction within the constraint range of the second constraint structure to steer the front wheel.

[0016] In one embodiment, the second constraint structure includes: a limiting plate; and an adjustment switch provided on the lower housing of the housing and including a stop bar. The stop bar is opposite to and spaced apart from the limiting plate in the first direction. The second end is configured to swing between the limiting plate and the stop bar.

[0017] In one embodiment, the adjustment switch further includes a lever connected to the stop bar, and an angle greater than 90 degrees and less than or equal to 180 degrees is formed between the stop bar and the lever.

[0018] In one embodiment, the pool cleaning device further includes: a wheel bin cover provided on the lower housing of the housing and including an arc-shaped chute. The chute includes a first limiting end and a second limiting end. The end of the lever is provided in the chute and is slidably located between the first limiting end and the second limiting end. Wherein, the wheel shaft is provided between the wheel bin cover and the lower housing of the housing. When the end of the lever is located at the first limiting end of the chute, a first swing range of the second end of the wheel shaft is defined between the stop bar and the limiting plate. When the end of the lever is located at the second limiting end of the chute, a second swing range of the second end of the wheel shaft is defined between the stop bar and the limiting plate. The first swing range is greater than the second swing range.

[0019] In one embodiment, the first constraint structure includes a first stop post and a second stop post, and the first stop post and the second stop post are spaced apart in the first direction. The first end of the wheel shaft is provided between the first stop post and the second stop post and is rotatably in contact with the first stop post and the second stop post.

[0020] The beneficial effects of the present application are as follows: The pool cleaning device of the present application is configured with a driving component and a water spraying component. The water in the pool is driven by the driving component to flow into the water spraying component and then sprayed out from the water spraying component to provide power for the pool cleaning device. Therefore, there is no need to provide an additional water pump for the pool cleaning device of the present application, nor is it necessary to use a water pipe to connect to the pool cleaning device inside the pool, which facilitates the use of the pool cleaning device of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] With reference to non-limiting examples of exemplary embodiments of the present application, the present application will be further described based on multiple drawings in the following detailed description. The drawings are not drawn to actual scale.

[0022] Figure 1 Schematically shows a pool cleaning device according to an embodiment of the present application.

[0023] Figure 2 Schematically shows a cross-sectional view of the pool cleaning device.

[0024] Figure 3 Schematically shows a charging base.

[0025] Figure 4 Schematically shows a cross-sectional view of the charging base.

[0026] Figure 5 Schematically shows a charging plug.

[0027] Figure 6 Schematically shows the state where the charging plug is engaged with the charging base.

[0028] Figure 7 Schematically shows a motor housing and a motor assembly.

[0029] Figure 8 Schematically shows a cross-sectional view of a battery pack.

[0030] Figure 9 Schematically shows the connection relationship between the upper housing and the lower housing of the housing.

[0031] Figure 10 Schematically shows a handle assembly.

[0032] Figure 11a Schematically shows the mating relationship between the commutation component and the housing, where the commutation piece forms a first angle with the vertical direction.

[0033] Figure 11b Schematically shows the mating relationship between the commutation component and the housing, where the commutation piece forms a second angle with the vertical direction.

[0034] Figure 12aSchematically shows the sliding plate.

[0035] Figure 12b Schematically shows a partial view of the commutator segment.

[0036] Figure 12c Schematically shows the state where the sliding plate and the commutator segment are assembled together.

[0037] Figure 13a Schematically shows the wheel assembly mounted on the bottom wall of the housing.

[0038] Figure 13b Schematically shows the mounting structure of the front wheel.

[0039] Figure 14 Schematically shows the state of the front wheel when the pool cleaning device moves in a rectangular pool.

[0040] Figure 15 Schematically shows the first state of the front wheel.

[0041] Figure 16 Schematically shows the second state of the front wheel.

[0042] Figure 17 Schematically shows the movement trajectory of the pool cleaning device in a rectangular pool.

[0043] Figure 18 Schematically shows the state of the front wheel when the pool cleaning device moves in a circular pool.

[0044] Figure 19 Schematically shows the third state of the front wheel.

[0045] Figure 20 Schematically shows the fourth state of the front wheel.

[0046] Figure 21 Schematically shows the movement trajectory of the pool cleaning device in a circular pool.

[0047] List of reference numerals

[0048] 1 Pool cleaning device

[0049] 2 Housing

[0050] 20 Water flow channel

[0051] 201 Inlet 202 Outlet

[0052] 203 Filter screen 204 Axle hole

[0053] 205a First through hole 205b Second through hole

[0054] 206 First chamber 207 Bearing

[0055] Upper housing 21

[0056] Gap 210

[0057] Handle assembly 212 and boss 214

[0058] Handle 213 and flexible connection part 216

[0059] Handle frame 215 and screw 217

[0060] Lower housing 22

[0061] Wheel bin 222 and flange 224

[0062] Side wall of wheel bin 225

[0063] Cover plate 24

[0064] First wall 241 and second wall 242

[0065] Limit projection 243

[0066] First constraint structure 25

[0067] First stop post 251 and second stop post 252

[0068] Second constraint structure 26

[0069] Limit plate 261 and adjustment switch 262

[0070] Stop rod 263 and shift lever 264

[0071] Wheel bin cover 27

[0072] First limit end 271 and second limit end 272

[0073] Chute 273

[0074] Reversing assembly 3

[0075] Commutator segment 31

[0076] Rotating shaft 311 and opening 312

[0077] First end wall 313 and second end wall 314

[0078] Guide rail 315

[0079] Sliding plate 32

[0080] Baffle 324 and guide groove 325

[0081] Elastic member 33

[0082] Water spraying assembly 4

[0083] 401 Upper housing 402 Lower housing

[0084] 403 Water spraying housing 404 Water spraying port

[0085] 41 Impeller

[0086] 5 Wheel assembly

[0087] 51 Front wheel

[0088] 511 Wheel body 512 Wheel axle

[0089] 521 First end of the wheel axle 522 Second end of the wheel axle

[0090] 52 Rear wheel

[0091] 6 Drive assembly

[0092] 60 Motor housing

[0093] 601 Mounting plate 602 Mounting space

[0094] 603 Second chamber

[0095] 61 Motor assembly

[0096] 611 Motor 612 Battery pack

[0097] 613 PCB board 614 Output shaft

[0098] 615 Battery pack housing 616 Battery cell

[0099] 617 Sealing glue

[0100] 621 First part 622 Second part

[0101] 7 Charging stand

[0102] 71a First charging post 71b First charging post

[0103] 711 Conductive rod 713 Top surface

[0104] 714 Sealing layer 72a First base

[0105] 72b Second base 722a First extension

[0106] 722b Second extension 723 Slot

[0107] 73 Charging plug

[0108] 731 Partition board 732 Bottom plate

[0109] 733 Top box 734a First electrode plate

[0110] 734b Second electrode plate, mating plate of the top box 735

[0111] 736a First spring, 736b Second spring

[0112] 737 Power connector, 738 Conducting wire

[0113] 8 Rectangular pool

[0114] 81 First position within the rectangular pool, 82 Second position within the rectangular pool

[0115] 83 Third position within the rectangular pool, 84 Pool wall of the rectangular pool

[0116] 85 Trajectory of the pool cleaning device within the rectangular pool

[0117] 9 Circular pool

[0118] 91 First position within the circular pool, 92 Second position within the circular pool

[0119] 93 Third position within the circular pool, 94 Pool wall of the circular pool

[0120] 95 Trajectory of the pool cleaning device within the circular pool

[0121] L First direction, H Vertical direction

[0122] W Second direction, A Sliding direction of the sliding plate

[0123] B Water flow path

[0124] X Minor axis, Y Major axis

[0125] α1 First angle, α2 Second angle Detailed implementation manners

[0126] To make the objectives, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and the corresponding drawings. Apparently, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0127] In this application, the directional term "vertical direction" refers to the direction generally along the height direction of the pool cleaning device; the directional term "up" refers to the direction away from the ground along the vertical direction; the directional term "down" refers to the direction towards the ground along the vertical direction. The directional term "first direction" refers to the direction of the forward or backward movement of the pool cleaning device generally, and for the elliptical pool cleaning device of this application, it generally refers to the direction along the long axis of the pool cleaning device; the directional term "second direction" refers to the direction generally perpendicular to the first direction, and for the elliptical pool cleaning device of this application, it generally refers to the direction along the short axis of the pool cleaning device. The directional term "rear" refers to the direction of the pool cleaning device moving backward generally; the directional term "front" refers to the direction generally opposite to the "rear".

[0128] Figure 1 Schematically shows a pool cleaning device 1 according to an embodiment of the present application. In combination with Figure 1 and Figure 2 , the pool cleaning device 1 includes a housing 2, a drive assembly 6, and a water spraying assembly 4.

[0129] The housing 2 has a water inlet 201 and a water outlet 202. For example, the housing 2 includes an upper housing 21 and a lower housing 22, and the upper housing 21 and the lower housing 22 are detachably assembled together to form the housing 2 and define a first chamber 206 inside the housing 2. A water flow channel 20 is formed inside the housing 2. The water inlet 201 is the inlet of the water flow channel 20 and is provided on the lower housing 22, and the water outlet 202 is the outlet of the water flow channel 20 and is provided on the upper housing 21.

[0130] The drive assembly 6 is arranged inside the housing 2 (i.e., in the first chamber 206) and includes an output shaft 614 that at least partially extends through the water outlet 202.

[0131] The water spraying assembly 4 is rotatably arranged on the housing 2 and is in fluid communication with the water outlet 202. For example, the water spraying assembly 4 is rotatably arranged at the position of the water outlet 202 through an optional bearing 207. It can be understood that in other embodiments, the water spraying assembly 4 can be rotatably connected to the housing 2 in other ways. For example, the water spraying assembly 4 is provided with an annular sliding groove, and the housing 2 has a flange embedded in the sliding groove. The water spraying assembly 4 includes a water spraying housing 403 and an impeller 41 arranged inside the water spraying housing 403. The impeller 41 is connected to the output shaft 614, and the output shaft 614 is used to drive the impeller 41 to rotate axially. In this embodiment, the water spraying housing 403 optionally includes an upper housing 401 and a lower housing 402, and the upper housing 401 and the lower housing 402 are connected to form the water spraying housing 403. It can be understood that in other embodiments, the water spraying housing 403 may also have other structures. For example, the water spraying housing 403 is integrally formed.

[0132] When using the pool cleaning device 1 of the present application, the output shaft 614 in the drive assembly 6 drives the impeller 41 to rotate at a high speed. In this way, driven by the impeller 41, the water in the pool will enter the water flow channel 20 through the water inlet 201, then enter the spraying assembly 4 through the water outlet 202, and finally be sprayed out from the spraying assembly 4. For example, a water spraying port 404 is provided on the circumferential side wall of the spraying assembly 4, and water is sprayed out from the water spraying port 404. The corresponding water flow path B is generally as shown by the arrow in Figure 2 The water flow sprayed out from the spraying assembly 4 provides power for the pool cleaning device 1 to drive the pool cleaning device 1 to move in a direction opposite to the direction of the water flow sprayed out from the spraying assembly 4. When the spraying assembly 4 rotates relative to the housing 2, the direction of the water flow sprayed out from the spraying assembly 4 also changes accordingly, thereby providing power for the pool cleaning device 1 in other directions. It can be seen that when using the pool cleaning device 1 of the present application, there is no need to additionally provide a water pump for the pool cleaning device 1 (as described in the prior art), which reduces the production cost of the pool cleaning device 1 and facilitates the use of the pool cleaning device 1 of the present application. Moreover, since there is no need to additionally provide a water pump, there is no need for a water pipe connected between the water pump and the pool cleaning device (as described in the prior art), thus avoiding the problem that the water pipe gets entangled during the use of the pool cleaning device 1, or even the water pipe gets entangled on the pool cleaning device 1, which further facilitates the use of the pool cleaning device 1 of the present application.

[0133] In one embodiment, the pool cleaning device 1 is generally oval, and the pool cleaning device 1 is adapted to move forward or backward along the first direction L (i.e., the direction of the long axis Y of the pool cleaning device 1). It should be understood that the housing 2 can also be of other shapes, such as circular or polygonal, etc., which will not be elaborated here. In the present application, the technical solution of the present application is described by taking the housing 2 being generally oval as an example.

[0134] In one embodiment, the output shaft 614 is directly connected to the impeller 41. In other words, the output shaft 614 is not connected to the impeller 41 through any speed reduction mechanism. This helps to reduce the noise generated during the operation of the pool cleaning device 1, thereby improving the user experience. It can be understood that in other embodiments, the output shaft 614 can also be coupled to the impeller 41 through a speed reduction mechanism (such as a gearbox), so as to reduce the speed of the impeller 41 when the speed of the output shaft 614 is too high, thereby reducing the load of the impeller 41 and extending the service life of the impeller 41.

[0135] Also as Figure 2As shown, a filter screen 203 is provided inside the housing 2. The filter screen 203 can be used to filter sediment or other debris in the water entering the water flow channel 20, which helps to keep the debris sucked into the water flow channel 20 inside the housing 2 and avoid these debris getting stuck between the movable parts of the pool cleaning device 1 and causing malfunctions. In one embodiment, the upper housing 21 and the lower housing 22 can be disassembled to remove the filter screen 203 from the first chamber 206 for cleaning.

[0136] As Figure 4 shown, the housing 2 is provided with two through holes (i.e., the first through hole 205a and the second through hole 205b). For example, the first through hole 205a and the second through hole 205b are provided on the upper housing 21. Combining Figure 1 , Figure 3 and Figure 4 , the pool cleaning device 1 further includes a charging base 7. The charging base 7 includes two bases (i.e., the first base 72a and the second base 72b) and two charging posts (i.e., the first charging post 71a and the second charging post 71b). The two bases are respectively arranged at the positions of the two through holes (i.e., arranged on the upper housing 21). It can be understood that the position of the first base 72a corresponds to the position of the first through hole 205a, and the position of the second base 72b corresponds to the position of the second through hole 205b. The two charging posts are respectively arranged on the two bases and extend along the vertical direction H.

[0137] The first charging post 71a is arranged in the first through hole 205a, and the second charging post 71b is arranged in the second through hole 205b. Each charging post includes a conductive rod 711 and an optional sealing layer 714. Each conductive rod 711 is arranged in the corresponding through hole. Optionally, each conductive rod 711 extends along the vertical direction H. The sealing layer 714 is arranged on the conductive rod 711 and covers at least a part of the conductive rod 711 to prevent water from seeping from the gap between the conductive rod 711 and the corresponding through hole to the electrical part of the pool cleaning device 1. For example, the sealing layer 714 covers the circumferential side of the conductive rod 711, and the top surface 713 of the conductive rod 711 is exposed from the sealing layer 714. After the pool cleaning device 1 is taken out of the water, since the conductive rod 711 protrudes upward from the housing 2 along the vertical direction H, when there is water on the conductive rod 711, the water will flow downward under the action of gravity and quickly leave the conductive rod 711, and it is difficult to remain on the conductive rod 711 to form accumulated water. Furthermore, there will be no accumulated water on the first base 72a and the second base 72b of the charging base to cause corrosion of the conductive rod 711.

[0138] In one embodiment, the conductive rod 711 is made of an inert metal material. For example, the inert metal material can be, but is not limited to, stainless steel, titanium, etc. In this way, the conductive rod 711 has good rust prevention ability. In a humid environment, an oxide layer with poor conductivity is not easily formed on the top surface 713 of the conductive rod 711, thereby avoiding an increase in the contact resistance between the charging plug (described below) and the charging post and / or a decrease in the charging efficiency of the pool cleaning device 1 due to the formation of an oxide layer on the top surface 713 of the conductive rod 711.

[0139] Also as Figure 4 shown, the top surface 713 of the conductive rod 711 is a flat surface. The flat top surface 713 of the conductive rod 711 is easy to process and clean. On the other hand, the flat top surface can enable the two charging posts to have the largest possible effective contact area with the corresponding electrode plates (detailed below) of the charging plug 73 respectively, which can reduce the accumulation of heat at the positions of the charging post and the electrode plate when charging the pool cleaning device 1 through the charging plug 73.

[0140] Also as Figure 3 and Figure 4 shown, the first base 72a and the second base 72b are spaced apart from each other. The first base 72a includes a first extension 722a extending from its side wall, and the second base 72b includes a second extension 722b extending from its side wall. The first extension 722a and the second extension 722b face each other and are spaced apart, thereby defining a slot 723 between the first extension 722a and the second extension 722b. For example, the first extension 722a and the second extension 722b are spaced apart in a second direction W that is substantially perpendicular to the first direction L (i.e., the second direction W is substantially parallel to the direction of the short axis X of the pool cleaning device 1). As Figure 4 shown, along the vertical direction H, the upper opening size of the slot 723 is smaller, while the internal size is larger.

[0141] Figure 5 Schematically shows the charging plug 73. As Figure 5 shown, the charging plug 73 has a structure matching the charging seat 7. For example, the charging plug 73 includes a partition plate 731 extending along the vertical direction H, a bottom plate 732 connected to the first end of the partition plate 731, and a top box body 733 connected to the second end of the partition plate 731. Two electrode plates (i.e., a first electrode plate 734a and a second electrode plate 734b) are provided on the intermediate plate 735 of the top box body 733 facing the bottom plate 732. The first electrode plate 734a and the second electrode plate 734b are separated by the partition plate 731.

[0142] When connecting the charging plug 73 to the charging seat 7, as Figure 6As shown, the bottom plate 732 is inserted into the slot 723, the partition plate 731 is located between the first extension portion 722a and the second extension portion 722b, and the first electrode piece 734a and the second electrode piece 734b are in electrical contact with the top surfaces 713 of the two conductive rods 711 respectively. In this way, the charging plug 73 can only be plugged and mated with the charging base 7 in the first direction L. The charging plug 73 cannot be separated from the charging base 7 in the vertical direction H, nor can it shake relative to the charging base 7 in the second direction W. Thereby, it is ensured that the electrode piece is stably in electrical contact with the corresponding conductive rod, which in turn helps to improve the charging efficiency of the pool cleaning device 1.

[0143] Also as Figure 6 shown, two springs (i.e., the first spring 736a and the second spring 736b) are also provided in the top box body 733. The two springs are respectively used to abut against the two electrode pieces so that the two electrode pieces are respectively kept in good electrical contact with the top surfaces of the two conductive rods to reduce the contact resistance.

[0144] As Figure 5 shown, the charging plug 73 also has a power connector 737 to connect to an external power source (which can be an AC or DC power source, not shown in the figure). The power connector 737 is electrically connected to the charging plug 73 through a wire 738. In this embodiment, the power connector 737 is a USB connector. It can be understood that in other embodiments, the power connector 737 can also have other structures. For example, the power connector 737 is an AC / DC adaptor.

[0145] As Figure 2 and Figure 7 shown, the drive assembly 6 includes a motor housing 60 and a motor assembly 61. The motor housing 60 may include a first part 621 and a second part 622. The first part 621 and the second part 622 are hermetically connected together and define a second chamber 603. The motor assembly 61 is located in the second chamber 603.

[0146] The conductive rod 711 extends from the second chamber 603 of the motor housing 60 through the first part 621 to the outside of the motor housing 60. The conductive rod 711 is hermetically connected to the first part 621 to prevent water in the external environment from entering the second chamber 603 along the conductive rod 711 and causing a failure of the motor assembly 61. In one embodiment, the conductive rod 711 is provided on the first part 621 of the motor housing 60 through a rubber coating structure, so that the sealing layer 714 is hermetically connected to the first part 621 of the motor housing 60.

[0147] As Figure 7As shown, the motor assembly 61 includes a motor 611, a battery pack 612, a PCB board 613, etc. The conductive rod 711, the motor 611, and the battery pack 612 are electrically connected to the PCB board 613 respectively. The battery pack 612 is used to supply power to the PCB board and the motor 611, and the conductive rod 711 is used to charge the battery pack 612. The motor 611 includes an output shaft 614.

[0148] The first part 621 and the second part 622 of the motor housing 60 are detachably connected. In this way, the motor housing 60 can be opened as needed to maintain or replace the motor 611, the battery pack 612, the PCB board 613, etc.

[0149] Also as Figure 7 shown, the motor housing 60 further includes a mounting plate 601. The mounting plate 601 is disposed on the inner surface of the first part 621 of the motor housing 60 (i.e., the surface facing the second chamber 603) and extends toward the interior of the second chamber 603. The mounting plate 601 extends circumferentially to form a closed shape and defines a mounting space 602 with the first part 621 of the motor housing 60. The PCB board 613 is mounted in the mounting space 602. A sealant (not shown in the figure) is provided between the PCB board 613 and the first part 621 of the motor housing 60. This avoids the adverse effects of the water vapor entering the second chamber 603 on the PCB board 613, and thus helps to improve the service life of the pool cleaning device 1.

[0150] As Figure 8 shown, the battery pack 612 includes a battery pack housing 615 and battery cells 616 disposed within the battery pack housing 615. A sealant 617 is filled between the battery pack housing 615 and the battery cells 616. In this way, the battery cells 616 are isolated from the external environment through the sealant 617 and the battery pack housing 615, avoiding the battery cells 616 from malfunctioning or having a shortened lifespan due to the influence of water vapor. In some embodiments, a packaging layer (not shown in the figure) is further provided outside the battery cells 616. In this case, the sealant 617 is filled between the packaging layer and the battery pack housing 615.

[0151] Also as Figure 9 shown, the pool cleaning device 1 further includes two handle assemblies 212. The two handle assemblies 212 are disposed on the upper housing 21 and are oppositely disposed along the second direction W. Each handle assembly 212 includes a handle frame 215 and an elastic handle 213. It can be understood that in other embodiments, the pool cleaning device 1 may have fewer or more handle assemblies 212.

[0152] The following description is based on Figure 9 the handle assembly 212 on the right side in the orientation shown below.

[0153] Combined with Figure 9 and Figure 10, the handle frame 215 is fixedly connected to the upper housing 21 (for example, connected to the upper housing 21 by screws 217) and extends toward the lower housing 22. The handle 213 is connected to the handle frame 215 and is movable relative to the housing 21. The handle 213 includes a boss 214 that extends toward the interior of the first chamber 206.

[0154] Also as Figure 9 shown, the lower housing 22 has a flange 224 that extends toward the exterior of the first chamber 206, and the flange 224 corresponds to the boss 214.

[0155] The upper housing 21 is above the lower housing 22 in the vertical direction H, and the handle 213 extends downward in the vertical direction H. Thus, when assembling the upper housing 21 and the lower housing 22 together, it is necessary to align the upper housing 21 and the lower housing 22 and press downward toward the lower housing 22. The flange 224 will push the corresponding boss 214 outward in the second direction W, and the handle 213 will elastically deform away from the upper housing 21 in the second direction W accordingly. After the boss 214 passes over the corresponding flange 224, the handle 213 will reset and approach the upper housing 21 in the second direction W so that the boss 214 engages with the corresponding flange 224, thereby connecting the upper housing 21 and the lower housing 22 together. This facilitates the assembly operation of the upper housing 21 and the lower housing 22.

[0156] When separating the upper housing 21 and the lower housing 22, manually slightly pull the handle 213 outward to separate the boss 214 from the corresponding flange 224. Then move the upper housing 21 upward so that the upper housing 21 leaves the lower housing 22. Thus, the various components provided in the housing 2 can be maintained. For example, the filter screen 203 can be taken out of the housing 2 and cleaned. In the prior art, the upper housing and the lower housing are usually connected by the cooperation of a buckle and a hook. However, the cooperation of the buckle and the hook is easily affected by sediment and is difficult to separate, which results in difficulty in separating the upper housing and the lower housing. However, according to the technical solution of the present application, the user only needs to manually slightly pull the handle 213 outward to separate the boss 214 and the flange 224, and then the upper housing 21 and the lower housing 22 can be separated. The entire operation process is basically not affected by sediment, which facilitates the operation of the user.

[0157] As Figure 10As shown, a gap 210 is provided between the handle 213 and the handle frame 215. This gap 210 is discontinuous, thereby forming two flexible connection portions 216 between the handle 213 and the handle frame 215. The strength and stiffness of the flexible connection portions 216 are relatively weak while the elasticity is relatively good. Thus, when an external force acts on the handle 213 (for example, when the user manually operates the handle 213 or it is pushed outward by the flange 224), the flexible connection portions 216 can elastically move away from or close to the upper housing 21. In other embodiments, only one flexible connection portion 216 may be provided. It should be understood that other forms of connection portions may also be used to connect the handle and the handle frame according to actual situations, which are not limited herein.

[0158] In one embodiment, the handle frame 215 and the handle 213 are integrally formed for ease of manufacturing. In other embodiments, the handle frame 215 and the upper housing 21 may also be integrally formed, and then the handle is connected to the handle frame.

[0159] As Figure 1 shown, the pool cleaning device 1 further includes a commutation assembly 3. As Figure 1 and Figure 11a shown, the commutation assembly 3 includes a commutation piece 31. The commutation piece 31 is generally U-shaped and both ends are rotatably connected to the housing 2. For example, a rotating shaft 311 is configured at each end of the commutation piece 31, and a corresponding shaft hole 204 is provided on the housing 2. The commutation piece 31 generally spans across the housing 2 along the second direction W and the two rotating shafts 311 are respectively inserted into the corresponding shaft holes 204, thereby realizing the rotational connection between the commutation piece 31 and the housing 2. In this case, the two rotating shafts 311 become the rotation centers of the commutation piece 31.

[0160] The commutation piece 31 is used to allow or prevent the rotation of the water spraying assembly 4 relative to the housing 2 to achieve the conversion of the movement direction of the pool cleaning device 1. For example, when the water spraying port 404 of the water spraying assembly 4 faces backward (as Figure 1 shown), the pool cleaning device 1 moves forward and the commutation assembly 3 tilts backward under the action of the water resistance. When the pool cleaning device 1 stops moving (for example, when the pool cleaning device 1 contacts the pool wall of the pool), the commutation piece 31 rotates from the backward tilted state to the state along the vertical direction H under the action of the buoyancy of the water. The stop member provided on the commutation piece 31 no longer abuts against the corresponding member on the circumferential side wall of the water spraying housing. At this time, the commutation piece allows the water spraying assembly 4 to rotate 180 degrees relative to the housing 2 so that the water spraying port 404 of the water spraying assembly 4 faces forward (as Figure 1In the direction opposite to the shown water spraying direction, i.e., the first direction), the stop member provided on the commutator 31 abuts against the corresponding member on the circumferential side wall of the water spraying housing at this time to prevent the water spraying assembly from continuing to rotate. In this way, the water spraying assembly sprays water towards the first direction L, pushing the pool cleaning device 1 to move rearward (i.e., move in the direction opposite to the first direction L) and the commutator 31 tilts forward under the action of the water resistance.

[0161] The commutator 31 can also be used as a handle for the pool cleaning device 1, so that there is no need to configure an additional handle for the pool cleaning device 1, which reduces the number of parts of the pool cleaning device 1 and thus reduces the cost of the pool cleaning device 1.

[0162] Also as Figure 1 shown, the commutation assembly 3 further optionally includes two sliding plates 32 respectively slidably mounted at both ends of the commutator 31 and two elastic members 33, and each elastic member 33 is respectively located between the corresponding sliding plate 32 and the commutator 31. The sliding plate 32 can rotate together with the commutator 31 and slide relative to the commutator 31 towards or away from the rotation center of the commutator 31 (i.e., the rotating shaft 311), and put the corresponding elastic member 33 in a released state or a compressed state.

[0163] Specifically, as Figure 12a shown, the sliding plate 32 is configured with a baffle 324. As Figure 12b and Figure 12c shown, one end of the commutator 31 is configured with an opening 312 extending towards the rotating shaft 311. The opening 312 has a first end wall 313 away from the rotating shaft 311 and a second end wall 314 close to the rotating shaft. As Figure 11a and Figure 11b shown, the sliding plate 32 is mounted in the opening 312, and the baffle 324 is arranged facing the first end wall 313 and the second end wall 314. The elastic member 33 is arranged in the opening 312 and its two ends respectively abut against the baffle 324 and the first end wall 313 (i.e., the two ends of the elastic member 33 respectively abut against the corresponding commutator 31 and sliding plate 32). In this embodiment, the elastic member 33 is a helical spring. Of course, in other embodiments, other types of elastic members (such as torsion springs) can also be used, which will not be elaborated here.

[0164] Also as Figure 1 shown, at least two limit protrusions 243 are provided on the housing 2, and these two limit protrusions 243 are opposite to each other along the second direction W. Each limit protrusion 243 is within the rotation path of the corresponding commutator 31, and each sliding plate 32 is adapted to contact the corresponding limit protrusion 243. As Figure 11aAs shown, optionally, each limiting protrusion 243 includes a first wall 241 and a second wall 242. The second wall 242 extends upward along the vertical direction H and deviates from the rotating shaft 311 of the corresponding commutator segment 31 along the first direction L. The first wall 241 extends downward and obliquely from the upper end of the second wall 242 toward the rotating shaft 311 of the commutator segment 31. For example, the first wall 241 extends downward and obliquely from the upper end of the second wall 242 and is parallel to a certain radial direction of the rotation path of the commutator segment 31. In other embodiments, the first wall 241 may also extend downward and obliquely from the middle of the second wall 242. Optionally, in other embodiments, the limiting protrusion 243 may be made into a solid structure for use in cooperation with the corresponding sliding plate.

[0165] As Figure 11a shown, when the sliding plate 32 abuts against the second wall 242, the commutator segment 31 forms a first angle α1 with the vertical direction H. At this time, the elastic member 33 is pressed between the baffle 324 and the first end wall 313. In this way, under the thrust of the elastic member 33, the sliding plate 32 abuts tightly against the second wall 242 to prevent the commutator segment 31 from rotating relative to the housing 2. As Figure 11b shown, when the commutator segment 31 is pushed to rotate so that the sliding plate 32 rotates over the second wall 242, the elastic member 33 is released and pushes the sliding plate 32 to move toward the rotating shaft 311. When the commutator segment 31 (or the sliding plate 32) is substantially parallel to the first wall 241, the commutator segment 31 forms a second angle α2 with the vertical direction H, and the first angle α1 is greater than the second angle α2. According to this structure, when the sliding plate 32 abuts against the second wall 242, the height of the commutator segment 31 is lower; when the sliding plate 32 rotates over the second wall 242, the height of the commutator segment 31 is higher. Therefore, after the producer manufactures the pool cleaning device, in order to reduce the specification of the packaging box of the pool cleaning device, the commutator segment 31 can be rotated relative to the housing 2 until the sliding plate 32 abuts against the second wall 242 (as Figure 11a shown in the state) to reduce the height of the commutator segment 31, which can reduce the space occupied by the pool cleaning device 1 in the packaging box to facilitate the storage of the pool cleaning device 1. When the user first uses the pool cleaning device, only need to slightly lift the commutator segment 31 to rotate the sliding plate 32 over the second wall 242 (as Figure 11b shown in the state), so that the pool cleaning device is in a state where it can work properly, avoiding the situation that the pool cleaning device cannot effectively clean the pool bottom because the stop structure on the commutator segment 31 cannot cooperate with the corresponding structure on the water spraying housing.

[0166] It should be noted that when the sliding plate 32 abuts against the second wall 242, the commutator segment 31 is prevented from rotating freely relative to the housing 2 by the friction between the sliding plate 32 and the second wall 242 in its rotation direction, so the pool cleaning device 1 cannot automatically reverse in the pool. Therefore, when the user uses the pool cleaning device 1 for the first time, he needs to first move the commutator segment 31 upward in the vertical direction H to rotate relative to the housing 2 until the sliding plate 32 rotates over the second wall 242. At this time, when the pool cleaning device is used, the commutator segment 31 can swing between the first walls of the two relatively arranged limiting protrusions 243 to cooperate with the corresponding structure on the water spray assembly to achieve automatic reversal operation of the pool cleaning device in the pool. Since the first wall 241 extends downwardly from the upper end of the second wall 242 toward the rotating shaft 311 of the commutator segment 31, the first wall 241 will not hinder the rotation of the commutator segment 31 under the combined action of the buoyancy and thrust of the water. In this way, when the pool cleaning device 1 moves in the water, the reversing piece 31 can rotate relative to the housing 2 under the combined action of the buoyancy and thrust of the water, and the pool cleaning device 1 can automatically reverse in the water.

[0167] According to the reversing assembly 3 of this structure, the elastic member 33 is protected by the opening 312, which makes the pool cleaning device 1 less prone to malfunction. It should be noted that after the sliding plate 32 rotates over the second wall 242, the baffle 324 abuts against the second end wall 314 of the opening 312 (such as Figure 11b As shown), this helps to prevent the sliding plate 32 from sliding too far relative to the commutator segment 31 and falling off the commutator segment 31.

[0168] In an alternative embodiment, the sliding plate 32 may be provided only at one end of the commutator segment 13. In this way, only one side of the housing 2 along the second direction W needs to be provided with a limiting protrusion.

[0169] Also like Figure 1 As shown, two cover plates 24 are provided on the housing 2 (or upper housing 21). The two cover plates 24 are arranged opposite to each other along the second direction W, and define the shaft hole 204 together with the upper housing 21 respectively. Both ends of each cover plate 24 along the first direction L have the above-mentioned limiting protrusions 243. In this embodiment, the two limiting protrusions 243 are integrally formed with the corresponding cover plates 24 to facilitate manufacturing. It can be understood that in other embodiments, the two limiting protrusions 243 and the corresponding cover plates 24 can also be manufactured separately and then assembled together.

[0170] like Figure 12b As shown, two guide rails 315 are provided on the commutator segment 31, and the two guide rails 315 are located on both sides of the opening 312 along a direction perpendicular to the sliding direction A of the sliding plate. Figure 12aAs shown, two guide grooves 325 are correspondingly formed on the sliding plate 32, and the openings of the two guide grooves 325 face each other. The baffle 324 is located between the two guide grooves 325. In this way, the two guide rails 315 are respectively slidably engaged into the two guide grooves 325, and the sliding plate 32 straddles the opening 312 and is slidable relative to the commutator 31. Along the direction perpendicular to the sliding direction A of the sliding plate 32, the two guide rails 315 and the two guide grooves 325 play a constraining role on the sliding plate 32 to prevent the sliding plate 32 from falling off the commutator 31. It should be understood that the guide rails can also be provided on the sliding plate, and correspondingly, the guide grooves are provided on the commutator.

[0171] Also as Figure 1 and Figure 13a shown, the pool cleaning device 1 further includes a wheel assembly 5 provided on the lower housing 22. As Figure 13a shown, the wheel assembly 5 includes a front wheel 51 and two rear wheels 52, so that the pool cleaning device 1 can move smoothly on the bottom of the pool. The front wheel 51 is generally located on the long axis Y of the pool cleaning device 1, and the two rear wheels 52 are symmetrically arranged relative to the long axis Y.

[0172] Optionally, as Figure 13b shown, a wheel chamber 222 for mounting the front wheel 51 is provided on the lower housing 22. For example, the wheel chamber 222 generally extends along the first direction L. First constraint structures 25 and second constraint structures 26 are respectively provided on both sides of the wheel chamber 222 along the second direction W.

[0173] The front wheel 51 includes a wheel body 511 and a wheel axle 512. The wheel body 511 is arranged in the wheel chamber 222 and is spaced apart from the two side walls 225 of the wheel chamber 222. The wheel axle 512 straddles the wheel chamber 222 along the second direction W, and the first end 521 of the wheel axle 512 is rotatably connected to the first constraint structure 25, and the second end 522 of the wheel axle 512 is adapted to swing along the first direction L within the constraint range of the second constraint structure 26. In this way, when using the pool cleaning device 1, the swing of the second end 522 of the wheel axle 512 can be controlled according to the actual situation, so that the wheel body 511 can be properly turned, and thereby the movement track of the pool cleaning device 1 can be changed.

[0174] Also as Figure 13bAs shown, the first constraint structure 25 optionally includes a first stop post 251 and a second stop post 252. The first stop post 251 has an arcuate first circumferential side wall, the second stop post 252 has an arcuate second circumferential side wall, and the first stop post 251 and the second stop post 252 are spaced apart along a first direction L. In one embodiment, the first stop post 251 is a cylinder, and the second stop post 252 is also a cylinder. The first end 521 of the wheel axle 512 is disposed within the gap between the first stop post 251 and the second stop post 252. In this way, the first end 521 of the wheel axle 512 is rotatably in contact with the first stop post 251 and the second stop post 252, so that the second end 522 of the wheel axle 512 can swing along the first direction L.

[0175] Also as Figure 13b shown, the second constraint structure 26 includes a limit plate 261 and an adjustment switch 262. The limit plate 261 extends generally along a second direction W. The adjustment switch 262 includes a stop lever 263 rotatably disposed on the lower housing 22. The stop lever 263 is opposite to and spaced apart from the limit plate 261 along the first direction L. The second end 522 of the wheel axle 512 is located between the stop lever 263 and the limit plate 261, and the stop lever 263 and the limit plate 261 define the swing range of the second end 522 of the wheel axle 512. According to this structure, the distance between the stop lever 263 and the limit plate 261 can be adjusted by rotating the stop lever 263, so as to change the swing range of the second end 522 of the wheel axle 512, and further enable the wheel body 511 to turn appropriately.

[0176] Also as Figure 13b shown, the adjustment switch 262 also optionally includes a lever 264 connected to the stop lever 263, and an angle greater than 90 degrees and less than or equal to 180 degrees is formed between the stop lever 263 and the lever 264. The pool cleaning device 1 further includes a wheel housing cover 27 disposed on the lower housing 22 (as Figure 1 and Figure 15 shown). The wheel housing cover 27 covers the wheel housing 222, so that the wheel axle 512 of the front wheel 51 is located between the lower housing 22 and the wheel housing cover 27.

[0177] Also as Figure 15 shown, an arcuate chute 273 is provided on the wheel housing cover 27. The chute 273 includes a first limit end 271 and a second limit end 272. The end of the lever 264 away from the stop lever 263 is disposed within the chute 273 and can slide between the first limit end 271 and the second limit end 272.

[0178] The user can toggle the stop lever 263 or the lever 264 to make the end of the lever 264 located at the first limit end 271 of the chute 273, so that a first swing range of the second end 522 of the wheel axle 512 is formed between the stop lever 263 and the limit plate 261 (as Figure 15As shown). In this state, when the second end 522 of the wheel axle 512 abuts against the shift lever 263 (i.e., the first state of the front wheel 51), the range of the angle formed by the wheel axle 512 tilting backward and the second direction W is 0° - 10°. Optionally, the wheel axle 512 tilts backward and forms an angle of approximately 5°, 6°, 7°, 8°, 9° or 10° with the second direction W. Specifically, the angle formed by the wheel axle 512 tilting backward and the second direction W is 8°, and the wheel body 511 is deflected to the left with respect to the first direction L (as Figure 15 shown). When the second end 522 of the wheel axle 512 abuts against the limit plate 261 (i.e., the second state of the front wheel 51), the range of the angle formed by the wheel axle 512 tilting forward and the second direction W is 0° - 10°. Optionally, the wheel axle 512 tilts forward and forms an angle of approximately 2°, 2.5°, 3°, 3.5°, 4°, 4.5°, 5°, 5.5°, 6°, 6.5°, 7°, 7.5°, 8°, 8.5°, 9°, 9.5° or 10° with the second direction W. Specifically, the angle formed by the wheel axle 512 tilting forward and the second direction W is 3.5°, and the wheel body 511 is deflected to the right with respect to the first direction L (as Figure 16 shown).

[0179] The user can also toggle the shift lever 263 or the lever 264 so that the end of the lever 264 is located at the second limit end 272 of the chute 273, thus forming a second swing range of the second end 522 of the wheel axle 512 between the shift lever 263 and the limit plate 261 (as Figure 19 shown). In this state, when the second end 522 of the wheel axle 512 abuts against the shift lever 263 (i.e., the third state of the front wheel 51), the range of the angle formed by the wheel axle 512 and the second direction W is 0° - 2°. Optionally, the wheel axle 512 forms an angle of approximately 0°, 0.5°, 0.8°, 1°, 1.5° or 2° with the second direction W. Specifically, the angle formed by the wheel axle 512 and the second direction W is 0° (as Figure 19 shown), and the wheel body 511 is not deflected or basically not deflected with respect to the first direction L. When the second end 522 of the wheel axle 512 abuts against the limit plate 261 (i.e., the fourth state of the front wheel 51), the range of the angle formed by the wheel axle 512 tilting forward and the second direction W is 0° - 10°. Optionally, the wheel axle 512 tilts forward and forms an angle of approximately 2°, 2.5°, 3°, 3.5°, 4°, 4.5°, 5°, 5.5°, 6°, 6.5°, 7°, 7.5°, 8°, 8.5°, 9°, 9.5° or 10° with the second direction W. Specifically, the angle formed by the wheel axle 512 tilting forward and the second direction W is 3.5°, and the wheel body 511 is deflected to the right with respect to the first direction L (as Figure 20As shown. Therefore, the first swing range of the second end 522 of the axle 512 is greater than the second swing range.

[0180] As Figure 14 shown, when the pool cleaning device 1 is used in the rectangular pool 8, the stop bar 263 can be abutted against the first limit end 271 of the sliding groove 273, so that the second end 522 of the axle 512 can swing within the first swing range. When the pool cleaning device 1 is at the first position 81 in the rectangular pool 8, the front wheel 51 is in the first state, that is, the axle 512 is tilted backward and forms an angle of approximately 8° with the second direction W, and the wheel body 511 is deflected to the left with respect to the first direction L (as Figure 15 shown). The water spraying assembly sprays water in the direction opposite to the first direction L to provide the pool cleaning device with the power to move forward. In this way, the pool cleaning device 1 moves forward and leftward in the rectangular pool 8 to the second position 82 in the rectangular pool 8 and is blocked by the pool wall 84 of the rectangular pool 8. Next, the pool cleaning device stops moving due to the blockage of the pool wall. At this time, the commutator piece is no longer tilted by the impact of the water flow. Instead, the commutator piece of the pool cleaning device floats up due to its own buoyancy and then swings to a position substantially perpendicular to the housing. At this time, the stop structure on the commutator piece is disengaged from the corresponding structure on the circumferential side wall of the water spraying housing, and the water spraying assembly rotates to spray water in the direction of the first direction L. When the pool cleaning device 1 is pushed to move from the second position 82, the commutator piece swings to the tilted position again due to the impact of the water flow, and the stop structure on the commutator piece will be in stop cooperation with the corresponding structure on the circumferential side wall of the water spraying housing to position the water spraying assembly to spray water in the direction of the first direction L. The pool cleaning device 1 moves slightly backward from the second position 82. Under the action of the frictional resistance at the bottom of the pool, the front wheel 51 is converted to the second state, that is, the axle 512 is tilted forward and forms an angle of approximately 3.5° with the second direction W, and the wheel body 511 is deflected to the right with respect to the first direction L (refer to Figure 16 ). In this way, the pool cleaning device 1 moves rightward and backward in the rectangular pool 8 to the third position 83 in the rectangular pool 8. Subsequently, the pool cleaning device 1 will repeat the above actions in the rectangular pool 8 and finally complete the cleaning of the bottom of the rectangular pool 8. Figure 17 Schematically shows the movement track 85 of the pool cleaning device 1 in the rectangular pool 8. From Figure 17 it can be seen that the movement track 85 of the pool cleaning device 1 basically covers the bottom of the rectangular pool 8, realizing the effective cleaning of the rectangular pool 8.

[0181] As Figure 18As shown, when the pool cleaning device 1 is used in the circular pool 9, the lever 264 can be abutted against the second limiting end 272 of the sliding groove 273, so that the second end 522 of the wheel axle 512 can swing within the second swinging range. When the pool cleaning device 1 is at the first position 91 inside the circular pool 9, the front wheel 51 is in the third state, that is, an angle of approximately 0° is formed between the wheel axle 512 and the second direction W, that is, the wheel body 511 is not skewed or basically not skewed with respect to the first direction L (as Figure 19 shown). The water spraying assembly sprays water in the direction opposite to the first direction L to provide the pool cleaning device with the power to move forward. In this way, the pool cleaning device 1 moves forward inside the circular pool 9 to the second position 92 inside the circular pool 9 and is blocked by the pool wall 94 of the circular pool 9. Next, the pool cleaning device stops moving due to the blockage of the pool wall. At this time, the commutator piece is no longer tilted by the impact of the water flow. On the contrary, the commutator piece of the pool cleaning device floats up due to its own buoyancy and then swings to a position substantially perpendicular to the housing. At this time, the stop structure on the commutator piece is disengaged from the corresponding structure on the circumferential side wall of the water spraying housing, and the water spraying assembly rotates to spray water in the direction of the first direction L. When the pool cleaning device 1 is pushed to move from the second position 92, the commutator piece swings to the tilted position again due to the impact of the water flow, and the stop structure on the commutator piece will be in stop cooperation with the corresponding structure on the circumferential side wall of the water spraying housing to position the water spraying assembly to spray water in the direction of the first direction L. The pool cleaning device 1 moves slightly backward from the second position 92. Under the action of the frictional resistance on the pool bottom, the front wheel 51 is converted to the fourth state, that is, the wheel axle 512 tilts forward and forms an angle of approximately 3.5° with the second direction W, and the wheel body 511 is skewed to the right with respect to the first direction L (as Figure 20 shown). In this way, the pool cleaning device 1 moves to the right rear inside the circular pool 9 to the third position 93 inside the circular pool 9. Subsequently, the pool cleaning device 1 will repeat the above actions inside the circular pool 9 and finally complete the cleaning of the bottom of the circular pool 9. Figure 21 Schematically shows the movement track 95 of the pool cleaning device 1 inside the circular pool 9. From Figure 21 it can be seen that the movement track 95 of the pool cleaning device 1 basically covers the bottom of the circular pool 9, realizing the effective cleaning of the circular pool 9.

[0182] The following describes the usage instructions of the pool cleaning device 1 based on an optional embodiment.

[0183] First, turn on the power switch of the pool cleaning device 1, and the indicator light of the first color (for example, green) lights up and blinks. At this time, the pool cleaning device 1 is in the standby state. Next, place the pool cleaning device 1 in the standby state into the pool to be cleaned. The water level sensor of the pool cleaning device 1 is turned on, the indicator light of the first color stays on, and the motor starts working after 5 seconds. During the working process, the motor pauses for 10 seconds every 3 minutes. During the pause, the indicator light of the first color stays on. When it is necessary to stop using the pool cleaning device 1, take the pool cleaning device 1 out of the water and turn off the power switch of the pool cleaning device 1 to stop the pool cleaning device 1.

[0184] When the supply voltage of the battery pack is lower than 6.5V, the indicator light of the second color (for example, red) lights up and blinks. After blinking for 2 to 5 minutes, the indicator light of the second color goes out and the pool cleaning device 1 stops working.

[0185] When the pool cleaning device 1 is being charged, the indicator light of the second color lights up and blinks. After the pool cleaning device 1 is fully charged, the indicator light of the first color stays on.

[0186] The charging protection voltage of the pool cleaning device 1 is 8.4V. The charging power source is the DC power supply provided by the USB interface, the charging voltage is 5V, and the charging current is 1A to 2A. Whether the power switch of the pool cleaning device 1 is turned on or not does not affect charging.

[0187] The above are only embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. A pool cleaning device, characterized in that: The pool cleaning device comprises: A shell, including a water inlet and a water outlet; a drive assembly disposed within the housing and including an output shaft extending at least partially through the water outlet; and A water spray assembly, rotatably disposed on the housing and in fluid communication with the water outlet, comprises: water spray housing; and An impeller is arranged in the water spray housing and connected to the output shaft.

2. The pool cleaning device according to claim 1, characterized in that The housing is further provided with at least one through hole, and the pool cleaning device further comprises a charging base, wherein the charging base comprises: at least one base, one of the at least one base being disposed at a position of a corresponding one of the at least one through hole; At least one charging column, one of the at least one charging column is extended in a vertical direction and is disposed on a corresponding one of the at least one base, and comprises: a conductive rod extending in a vertical direction and disposed in a corresponding one of the at least one through hole; and A sealing layer is disposed on the conductive rod and covers at least a portion of the conductive rod.

3. The pool cleaning device according to claim 2, characterized in that: The at least one base comprises: A first base, comprising a first extension portion extending along a side wall of the first base; a second base, spaced apart from the first base and comprising a second extending portion extending along a side wall of the second base toward the first extending portion; The first extension portion and the second extension portion are spaced apart from each other, so that a slot is defined between the first extension portion and the second extension portion.

4. The pool cleaning device according to claim 2, characterized in that: The drive assembly comprises: a motor housing including a first portion and a second portion sealingly connected to the first portion; and a motor assembly disposed in a second chamber defined by the first portion and the second portion; The conductive rod extends from the inside of the second chamber through the first part and is sealed and connected to the first part.

5. The pool cleaning device according to claim 4, characterized in that The motor housing further comprises a mounting plate disposed on an inner surface of the first portion and extending toward the interior of the second chamber, wherein the mounting plate and the first portion of the motor housing define a mounting space; The motor assembly comprises: a motor, comprising the output shaft extending vertically through the water outlet; A PCB board is arranged in the installation space and is spaced apart from the first part, and a sealant is arranged between the PCB board and the first part; A battery pack comprises a battery pack shell and a battery cell in the battery pack shell, wherein a sealant is arranged between the battery pack shell and the battery cell.

6. The pool cleaning device according to claim 1, characterized in that: The shell includes an upper shell and a lower shell, the water outlet is arranged on the upper shell, the water inlet is arranged on the lower shell, and the upper shell is detachably connected to the lower shell to define a first chamber.

7. The pool cleaning device according to claim 6, characterized in that The pool cleaning device further comprises: a handle assembly disposed on the upper housing and comprising: A handle frame connected to the upper shell and extending downward toward the lower shell; An elastic handle is arranged on the handle frame and is hingedly connected to the handle frame, wherein the handle comprises a boss extending toward the interior of the first cavity.

8. The pool cleaning device according to claim 7, characterized in that The lower housing includes a flange extending toward the outside of the first chamber, and the boss of the handle is adapted to the flange to disassemble or assemble the upper housing and the lower housing.

9. The pool cleaning device of claim 1, wherein: The pool cleaning device also includes a reversing assembly, the reversing assembly comprising: A commutator segment, the commutator segment being disposed on the housing and comprising a rotating shaft and an opening having a first end wall, the commutator segment being rotatably connected to the housing via the rotating shaft; and A sliding plate, comprising a baffle extending from a surface of the sliding plate toward the inside of the opening, the sliding plate being mounted on the opening of the commutator segment and being adapted to slide relative to the commutator segment toward or away from the rotating shaft of the commutator segment; An elastic member is arranged inside the opening and between the baffle and the first end wall of the opening, and the elastic member is configured to switch between a compressed state and a released state.

10. The pool cleaning device of claim 9, wherein: A limiting protrusion is provided on the housing, and the limiting protrusion includes a first wall and a second wall extending upward in a vertical direction; When the elastic member is in the compressed state, the sliding plate abuts against the second wall so that the commutator segment forms a first angle with the vertical direction; and when the elastic member is in the released state, the sliding plate rotates over the second wall and abuts against the first wall so that the commutator segment forms a second angle with the vertical direction; the first angle is greater than the second angle.

11. The pool cleaning device of claim 9, wherein: A guide groove extending along the sliding direction of the sliding plate is arranged on one of the commutator segment and the sliding plate; a guide rail matching the guide groove is arranged on the other of the commutator segment and the sliding plate.

12. The pool cleaning device of claim 6, wherein: The pool cleaning device also includes: A wheel bin extending along a first direction and arranged on the lower shell of the shell; a first restraint structure and a second restraint structure are respectively arranged on both sides of the wheel bin along a second direction perpendicular to the first direction; and A front wheel, the front wheel comprising: A wheel body, spaced apart and arranged in the wheel chamber; and A wheel axle spans the wheel bay along the second direction and includes a first end and a second end; the first end of the wheel axle is rotatably connected to the first constraint structure, and the second end of the wheel axle swings along the first direction within the constraint range of the second constraint structure to steer the front wheels.

13. The pool cleaning device of claim 12, wherein: The second constraint structure comprises: Limiting plates; and an adjusting switch, the adjusting switch being arranged on the lower shell of the shell and comprising a blocking rod, the blocking rod being opposite to the limiting plate and spaced apart along the first direction; The second end is configured to swing between the limiting plate and the blocking rod.

14. The pool cleaning device of claim 13, wherein: The regulating switch also includes a lever connected to the blocking rod, and an angle greater than 90 degrees and less than or equal to 180 degrees is formed between the blocking rod and the lever.

15. The pool cleaning device of claim 14, wherein: The pool cleaning device also includes: A wheel well cover is arranged on the lower shell of the shell and comprises an arc-shaped slide groove; the slide groove comprises a first limit end and a second limit end, and the end of the lever is arranged in the slide groove and is slidably located between the first limit end and the second limit end; Wherein, the wheel axle is arranged between the wheel compartment cover and the lower shell of the shell; when the end of the shift rod is located at the first limit end of the slide slot, the first swing range of the second end of the wheel axle is limited between the shift rod and the limit plate; when the end of the shift rod is located at the second limit end of the slide slot, the second swing range of the second end of the wheel axle is limited between the shift rod and the limit plate; the first swing range is greater than the second swing range.

16. The pool cleaning device of claim 12, wherein: The first restraining structure includes a first stopper and a second stopper, wherein the first stopper and the second stopper are spaced apart along the first direction; the first end of the wheel axle is disposed between the first stopper and the second stopper, and is rotatably in contact with the first stopper and the second stopper.

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