Suction device and wet-type surface cleaning equipment

Abstract

The utility model provides a suction device. The suction device comprises a motor, a frame and an impeller. The motor comprises a rotor assembly; the frame is used for supporting a rotor assembly of the motor and comprises a top wall, and at least part of the rotor assembly penetrates through the top wall and is located outside the frame; the impeller is arranged on the rotor assembly and is driven by the rotor assembly to rotate; the impeller comprises a rotating disc, a plurality of main blades are arranged on one surface of the rotating disc, and at least one auxiliary blade is arranged on the other surface of the rotating disc. The utility model further provides wet type surface cleaning equipment.

Description

Technical Field

[0001] The present disclosure relates to a suction device and a wet surface cleaning device, belonging to the technical field of cleaning devices. Background Art

[0002] What is provided in this part is only background information related to the present disclosure, and it is not necessarily prior art.

[0003] Household floor washing machines can use cleaning liquids to clean surfaces such as floors waiting to be cleaned, thereby improving the cleaning effect of the surfaces waiting to be cleaned. Therefore, in recent years, household floor washing machines have been widely popularized.

[0004] To collect dirt during floor cleaning by a floor washing machine, a suction device is included in floor washing machines in the prior art. The suction device can provide negative pressure and collect solid dirt and cleaning liquid through this negative pressure.

[0005] Particularly, since there is liquid flowing in the recycling path, the gas flowing through the suction device generally carries some water droplets. If these water droplets enter the interior of the motor of the suction device, it will reduce the service life of the motor and even cause damage to the motor. Summary of the Utility Model

[0006] To solve one of the above technical problems, the present disclosure provides a suction device and a wet surface cleaning device.

[0007] According to one aspect of the present disclosure, a suction device is provided, which includes:

[0008] A motor, the motor includes a rotor assembly;

[0009] A frame, the frame is used to support the rotor assembly of the motor. The frame includes a top wall, and at least a part of the rotor assembly passes through the top wall and is located outside the frame; and

[0010] An impeller, the impeller is arranged on the rotor assembly and is driven and rotated by the rotor assembly; wherein, the impeller includes a turntable, and a plurality of main blades are arranged on one surface of the turntable, and at least one auxiliary blade is arranged on the other surface of the turntable.

[0011] The suction device according to at least one embodiment of the present disclosure further includes:

[0012] A housing, the housing is used to form an air inlet and an air outlet of the suction device. When the turntable rotates, the main blades are used to generate an air flow from the air inlet to the air outlet.

[0013] The suction device according to at least one embodiment of the present disclosure, wherein the main blades are disposed on the surface of the turntable away from the frame, and the auxiliary blades are disposed on the surface of the turntable close to the frame.

[0014] The suction device according to at least one embodiment of the present disclosure, wherein at least one of the auxiliary blades extends outward from a position close to the rotation center.

[0015] The suction device according to at least one embodiment of the present disclosure, wherein at least one of the auxiliary blades has a height extending from the surface of the turntable, and the height gradually decreases outward from a position close to the rotation center of the turntable.

[0016] The suction device according to at least one embodiment of the present disclosure, wherein each of the at least one auxiliary blade has the same radian.

[0017] The suction device according to at least one embodiment of the present disclosure, wherein at least one of the auxiliary blades has the same radian as the main blade.

[0018] The suction device according to at least one embodiment of the present disclosure, wherein the at least one auxiliary blade includes a plurality of auxiliary blades, and the plurality of auxiliary blades are equally spaced around the turntable center on the outer surface of the turntable.

[0019] The suction device according to at least one embodiment of the present disclosure, wherein the at least one auxiliary blade is six auxiliary blades.

[0020] The suction device according to at least one embodiment of the present disclosure, wherein the impeller is adjacent to a diffuser mounted on the frame, and the diffuser includes a plurality of diffuser blades.

[0021] The suction device according to at least one embodiment of the present disclosure, wherein a circular groove is formed on the plane of the diffuser facing the impeller.

[0022] The suction device according to at least one embodiment of the present disclosure, wherein the circular groove has a bottom surface, and the highest point of the at least one auxiliary blade has a first distance from the bottom surface, and the first distance is less than 1 mm.

[0023] According to another aspect of the present disclosure, there is provided a wet surface cleaning device having the above suction device. Brief Description of the Drawings

[0024] The drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, are used to explain the principles of the present disclosure. The drawings are included to provide a further understanding of the present disclosure and are included in this specification and form a part of this specification.

[0025] Figure 1 It is a schematic structural diagram of a surface cleaning device according to an embodiment of the present disclosure.

[0026] Figure 2 It is a schematic structural diagram of a cleaning base according to an embodiment of the present disclosure.

[0027] Figure 3 It is a schematic structural diagram of another angle of the cleaning base according to an embodiment of the present disclosure.

[0028] Figure 4 It is a partial schematic structural diagram of the cleaning base according to an embodiment of the present disclosure.

[0029] Figure 5 It is a schematic structural diagram of a liquid distribution system according to an embodiment of the present disclosure.

[0030] Figure 6 It is a schematic structural diagram of another angle of a partial structure of the cleaning base according to an embodiment of the present disclosure.

[0031] Figure 7 is Figure 6 an enlarged schematic view of part A.

[0032] Figure 8 It is a schematic structural diagram of a dispensing component (part) according to an embodiment of the present disclosure.

[0033] Figure 9 is Figure 8 an enlarged schematic view of part B.

[0034] Figure 10 It is a schematic structural diagram of another angle of the dispensing component according to an embodiment of the present disclosure.

[0035] Figure 11 It is a schematic structural diagram of a partial structure of a surface cleaning device according to an embodiment of the present disclosure.

[0036] Figure 12 It is a schematic structural diagram of a recycling storage part and a suction device according to an embodiment of the present disclosure.

[0037] Figure 13 It is a schematic structural diagram of another angle of the recycling storage part and the suction device according to an embodiment of the present disclosure.

[0038] Figure 14 It is a schematic structural diagram of another angle of the box part according to an embodiment of the present disclosure.

[0039] Figure 15 It is a schematic structural diagram of a solid-liquid separation device according to an embodiment of the present disclosure.

[0040] Figure 16It is a schematic structural view from another angle of a solid-liquid separation device according to an embodiment of the present disclosure.

[0041] Figure 17 It is a schematic structural view of a first latch and a second latch according to an embodiment of the present disclosure.

[0042] Figure 18 It is a schematic structural view of a first operation part according to an embodiment of the present disclosure.

[0043] Figure 19 It is a schematic structural view of an actuating member according to an embodiment of the present disclosure.

[0044] Figure 20 It is a schematic structural view of a surface cleaning device in a flat state (lying flat state) according to an embodiment of the present disclosure.

[0045] Figure 21 It is a schematic structural view of a surface cleaning device according to another embodiment of the present disclosure.

[0046] Figure 22 It is Figure 21 An enlarged schematic view of part C.

[0047] Figure 23 It is a schematic structural view of a suction device according to an embodiment of the present disclosure.

[0048] Figure 24 It is a sectional structural view of a suction device according to an embodiment of the present disclosure.

[0049] Figure 25 It is Figure 24 An enlarged structural view of part D.

[0050] Figure 26 It is a schematic structural view of an impeller according to an embodiment of the present disclosure.

[0051] Figure 27 It is a schematic structural view from another angle of an impeller according to an embodiment of the present disclosure.

[0052] Specifically, the reference numerals in the figure are:

[0053] 100 Cleaning base

[0054] 110 Seat member

[0055] 120 Travel mechanism

[0056] 130 Cleaning liquid storage part

[0057] 140 Liquid distribution system

[0058] 141 Water pump

[0059] 142 Distribution component

[0060] 142A Base part

[0061] 142B Rib structure

[0062] 142C Fluid distribution channel

[0063] 142D Drain hole

[0064] 142E Flow guiding structure

[0065] 142F Rear side wall

[0066] 142G Bottom wall

[0067] 150 Cover part

[0068] 160 Cleaning component

[0069] 170 Cleaning part

[0070] 180 Support

[0071] 190 Suction port

[0072] 200 Main body part

[0073] 300 Connection part

[0074] 400 Recycling and storage part

[0075] 410 Box part

[0076] 411 Sewage pipe

[0077] 420 Solid-liquid separation device

[0078] 421 Upper component

[0079] 422 Lower component

[0080] 423 Connection plate

[0081] 424 Filter structure

[0082] 425 First latch

[0083] 425A First operation part

[0084] 425A1 Second actuating surface

[0085] 425B Claw

[0086] 426 Actuating component

[0087] 426A First actuating surface

[0088] 427 Housing part

[0089] 500 Gas-liquid separator

[0090] 600 Suction device

[0091] 610 Frame

[0092] 620 Cover

[0093] 630 Motor

[0094] 631 Stator assembly

[0095] 632 Rotor assembly

[0096] 640 Impeller

[0097] 641 Turntable

[0098] 642 Main blade

[0099] 643 Sub-blade

[0100] 650 Diffuser

[0101] 651 Circular groove

[0102] 700 Second latch

[0103] 710 Second operating part

[0104] 720 Lock hook

[0105] 800 Rechargeable battery

[0106] 900 Operating handle

[0107] 910 Connecting rod

[0108] 950 Sliding support part. Detailed implementation mode

[0109] The present disclosure will be further described in detail below in conjunction with the accompanying drawings and the implementation mode. It can be understood that the specific implementation mode described herein is only used to explain the relevant content and does not limit the present disclosure. In addition, it should be noted that for the convenience of description, only the parts related to the present disclosure are shown in the accompanying drawings.

[0110] It should be noted that, without conflict, the implementation modes and the features in the implementation modes in the present disclosure can be combined with each other. The technical solutions of the present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with the implementation modes.

[0111] Unless otherwise specified, the illustrated exemplary embodiments will be understood to provide exemplary features of various details of some ways in which the technical conceptions of the present disclosure can be implemented in practice. Accordingly, unless otherwise specified, features of various embodiments can be additionally combined, separated, interchanged, and / or rearranged without departing from the technical conceptions of the present disclosure.

[0112] In the drawings, cross-hatching and / or shading are generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of cross-hatching or shading does not convey or imply any preference or requirement regarding the specific materials, material properties, dimensions, proportions, commonalities between the components shown, and / or any other characteristics, attributes, properties, etc. of the components. Additionally, in the drawings, for clarity and / or descriptive purposes, the dimensions and relative dimensions of components may be exaggerated. When the exemplary embodiments can be implemented differently, the specific process orders may be performed in an order different from that described. For example, two consecutively described processes may be performed substantially simultaneously or in an order opposite to that described. Further, the same reference numerals denote the same components.

[0113] When a component is referred to as being "on" or "above" another component, "connected to" or "coupled to" another component, the component can be directly on, directly connected to, or directly coupled to the other component, or there may be intervening components. However, when a component is referred to as being "directly on" another component, "directly connected to" or "directly coupled to" another component, there are no intervening components. For this reason, the term "connected" can refer to physical connection, electrical connection, etc., and can have or not have intervening components.

[0114] For descriptive purposes, the present disclosure may use spatial relative terms such as "under", "below", "beneath", "down", "above", "on", "over", "upper", and "side (e.g., as in "sidewall")" to describe the relationship of one component to another (other) component as shown in the drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacturing. For example, if the device in the drawings is flipped, a component described as "under" or "beneath" another component or feature will then be positioned "above" the other component or feature. Thus, the exemplary term "under" can encompass both "above" and "below" orientations. Additionally, the device may be otherwise positioned (e.g., rotated 90 degrees or at other orientations), and accordingly, the spatial relative descriptors used herein are to be interpreted.

[0115] The terms used herein are for the purpose of describing particular embodiments and are not intended to be limiting. As used herein, unless the context clearly dictates otherwise, the singular forms "a", "an" and "the" are also intended to include the plural forms. In addition, when the terms "comprising" and / or "including" and their variants are used in this specification, it is stated that there are the stated features, integers, steps, operations, components, assemblies and / or groups thereof, but does not preclude the presence or addition of one or more other features, integers, steps, operations, components, assemblies and / or groups thereof. It should also be noted that, as used herein, the terms "substantially", "about" and other similar terms are used as approximate terms and not as terms of degree, and thus they are used to explain the inherent deviations of measured, calculated and / or provided values that would be recognized by a person of ordinary skill in the art.

[0116] Figure 1 is a schematic structural view of a surface cleaning device according to an embodiment of the present disclosure.

[0117] As Figure 1 shown, the surface cleaning device of the present disclosure may include components such as a cleaning base 100, a main body portion 200, a connecting portion 300, a recovery storage portion 400, a gas-liquid separator 500, and a suction device 600. Moreover, components such as the recovery storage portion 400, the gas-liquid separator 500, and the suction device 600 of the present disclosure may be referred to as a recovery system.

[0118] The cleaning base 100 is arranged to be adapted to move on the surface to be cleaned, and as the cleaning base 100 moves on the surface to be cleaned, the cleaning of the surface to be cleaned can be achieved.

[0119] Figure 2 is a schematic structural view of a cleaning base according to an embodiment of the present disclosure. Figure 3 is a schematic structural view of the cleaning base from another angle according to an embodiment of the present disclosure. Figure 4 is a partial schematic structural view of a cleaning base according to an embodiment of the present disclosure. Figure 5 is a schematic structural view of a liquid distribution system 140 according to an embodiment of the present disclosure.

[0120] As Figures 2 to 5 shown, the cleaning base 100 of the present disclosure may include a longitudinal direction and a transverse direction. Taking the cleaning base 100 moving on a substantially horizontal surface to be cleaned and cleaning the surface to be cleaned as an example, the front-back movement direction of the cleaning base 100 is the longitudinal direction, and the transverse direction is a horizontal direction perpendicular or substantially perpendicular to the longitudinal direction. In other words, both the longitudinal direction and the transverse direction of the present disclosure may be horizontal directions.

[0121] The cleaning base 100 may include a base member 110, and a traveling mechanism 120 may be mounted on the base member 110 so that the cleaning base 100 can move on the surface to be cleaned through the traveling mechanism 120. The traveling mechanism 120 may include two rollers, which may be disposed at the rear in the longitudinal direction of the base member 110 and respectively disposed at two ends in the transverse direction, whereby the base member 110 can be supported by these two rollers. In this embodiment, since the cleaning member 170 of the cleaning base 100 can also contact the surface to be cleaned and at least partially support the base member 110 when cleaning the surface to be cleaned, correspondingly, the base member 110 can be supported by the cleaning member 170 and the two rollers.

[0122] In another embodiment, the traveling mechanism 120 may include four rollers, which are respectively located at the four corners of the portion of the base member 110 close to the surface to be cleaned. Accordingly, the base member 110 can be stably supported by these four rollers. At this time, when the cleaning member 170 contacts the surface to be cleaned, the normal pressure between the cleaning member 170 and the surface to be cleaned can be adjusted and controlled.

[0123] A cleaning liquid storage portion 130 is also provided on the base member 110. That is, different from the prior art, the cleaning liquid storage portion 130 of the present disclosure is part of the cleaning base 100. Water or a cleaning liquid is stored in the cleaning liquid storage portion 130. At the same time, the water or cleaning liquid stored in the cleaning liquid storage portion 130 can be provided to the cleaning member 170 through a liquid distribution system 140. Moreover, since the surface cleaning device of the present disclosure includes the cleaning liquid storage portion 130, it can perform wet cleaning on the surface to be cleaned. Correspondingly, it can also be called a wet surface cleaning device.

[0124] In a specific embodiment, the cleaning liquid storage portion 130 is located in the rear half of the cleaning base 100. In other words, the cleaning liquid storage portion 130 can be disposed above the base member 110 and at the rear in the longitudinal direction of the base member 110.

[0125] Preferably, the cleaning liquid storage portion 130 of the present disclosure can be removed from the base member 110 by pulling it backward. That is, when the amount of the cleaning liquid in the cleaning liquid storage portion 130 is small, the cleaning liquid storage portion 130 can be taken out by pulling it backward, and after adding water or cleaning liquid to the cleaning liquid storage portion 130 again, the cleaning liquid storage portion 130 can be mounted on the base member 110 by pushing it forward.

[0126] The cleaning base 100 of the present disclosure may further include a cover body portion 150; the cover body portion 150 is disposed on the seat member 110 and is located at the front part in the longitudinal direction of the seat member 110. A receiving space is jointly formed by the cover body portion 150 and the front end of the seat member 110, and a cleaning member 170 may be disposed in the receiving space. In a preferred embodiment, the cover body portion 150 can be detached from the seat member 110, and thus the cover body portion 150 can be conveniently cleaned, and correspondingly, the cleaning base 100 can also be conveniently cleaned.

[0127] The cover body portion 150 has a circumferential first end and a second end. Among them, the circumferential first end of the cover body portion 150 is formed as a free end, and the circumferential second end of the cover body portion 150 is disposed close to the upper surface of the seat member 110 and has a preset interval from the upper surface of the seat member 110.

[0128] A suction port 190 is formed on the seat member 110, and the suction port 190 is located behind the cleaning member 170. Moreover, a cleaning member 160 is disposed above the seat member 110. At least a part of the cleaning member 160 extends out from within the preset interval and can contact the fluff of the cleaning member 170 to scrape off the dirt attached to the cleaning member 170; and after the dirt is scraped off by the cleaning member 160, under the action of gravity and the negative pressure adsorption of the suction port 190, it will enter the recovery storage portion 400 through the suction port 190.

[0129] The cleaning member 170 is detachably disposed on the seat member 110, and at least a part of the cleaning member 170 is located in the receiving space. The cleaning member 170 of the present disclosure can rotate, and through the frictional contact with the surface to be cleaned during its rotation process, the cleaning of the surface to be cleaned is realized.

[0130] The cleaning member 170 of the present disclosure can be implemented by using the structure in the prior art, and the present disclosure will not elaborate on this one by one.

[0131] In the present disclosure, the liquid distribution system 140 may include a water pump 141 and a distribution member 142. Among them, the water pump 141 is used to extract the cleaning liquid in the cleaning liquid storage portion 130 and pressurize the cleaning liquid and provide it to the distribution member 142. The distribution member 142 is disposed on the seat member 110 and is located behind the cover body portion 150. The lower end of the distribution member 142 is located above the cleaning member 160, and at least a part of the liquid provided by the distribution member 142 can be discharged to the cleaning member 160 and provided to the cleaning member 170 via the cleaning member 160.

[0132] Figure 6 It is a schematic structural diagram of another angle of a partial structure of a cleaning base according to an embodiment of the present disclosure. Figure 7 is Figure 6 An enlarged schematic view of part A of Figure 8Schematic structural diagram of a dispensing component (part) according to an embodiment of the present disclosure. Figure 9 is Figure 8 An enlarged schematic view of part B of Figure 10 Schematic structural diagram of the dispensing component from another angle according to an embodiment of the present disclosure.

[0133] Specifically, the dispensing component 142 includes a base portion 142A, the base portion 142A having a front surface and a rear surface, wherein a liquid dispensing channel 142C is formed on the rear surface of the base portion 142A, and the liquid pressurized by the water pump 141 can be supplied to the liquid dispensing channel 142C and distributed by the liquid dispensing channel 142C. In a preferred embodiment, the liquid dispensing channel 142C has a plurality of ends, and drainage holes 142D are formed at the ends of the liquid dispensing channel 142C. Correspondingly, the drainage holes 142D are provided in plurality, and the drainage holes 142D penetrate through the base portion 142A. Thus, the cleaning liquid can flow to the front surface of the base portion 142A via the drainage holes 142D.

[0134] A rib structure 142B is provided on the front surface of the base portion 142A; in the present disclosure, the rib structures 142B can be distributed at substantially equal intervals along the length direction of the base portion 142A (i.e., along the transverse direction of the cleaning base 100), whereby a liquid dispensing space is formed between two adjacent rib structures 142B.

[0135] In a specific embodiment, some of the rib structures 142B in the rib structure 142B are correspondingly arranged with the drainage holes 142D, and at least a part of the rib structures 142B correspondingly arranged with the drainage holes 142D are spaced from the front surface of the base portion 142A. Thus, the drainage holes 142D can communicate with the liquid dispensing spaces on both sides of the rib structure 142B, so that the cleaning liquid can be discharged to the liquid dispensing space via the drainage holes 142D.

[0136] In a specific embodiment, the connection between the drainage hole 142D and the liquid dispensing space is located at a corner of the liquid dispensing space, wherein, taking Figure 8 the direction shown in

[0137] A diversion structure 142E is provided on the rib structure 142B, and the diversion structure 142E is configured such that the liquid discharged from the drainage hole 142D is diverted by the diversion structure 142E to the middle region in the transverse direction of the liquid dispensing space.

[0138] Moreover, the liquid distribution space includes a rear side wall 142F which is formed as a part of the front surface of the base portion 142A. The rear side wall 142F inclines forward in the lateral direction, away from the diversion structure 142E, so that the liquid entering the liquid distribution space can be discharged to the front portion of the liquid distribution space as soon as possible and flow out of the liquid distribution space from the front end of the liquid distribution space.

[0139] In addition, the liquid distribution space further includes a bottom wall 142G which is arranged as a V-shaped surface. And the bottom wall 142G gradually descends and then gradually ascends in the lateral direction. Thus, the bottom wall 142G includes a low region which is roughly located at the approximate middle position of the liquid distribution space in the lateral direction to form a liquid flow path through this low region.

[0140] Moreover, the bottom wall 142G inclines downward in the direction from the rear to the front, so that the cleaning liquid can flow forward on the bottom wall 142G under the action of gravity and flow to the cleaning member 160. At this time, at least part of the cleaning member 160 (for example, the part located below the distribution member 142) is arranged to incline downward in the direction from the rear to the front, so that the cleaning liquid can be provided to the cleaning part 170 via the cleaning member 160 under the action of gravity.

[0141] In the present disclosure, through the redesigned liquid distribution system, the cleaning liquid can be more evenly distributed on the cleaning part, effectively avoiding the phenomenon of uneven wet and dry on the cleaning part 170 and improving the cleaning effect of the surface cleaning device of the present disclosure.

[0142] Figure 11 It is a schematic structural view of a part of the structure of a surface cleaning device according to an embodiment of the present disclosure. Figure 12 It is a schematic structural view of a recovery storage part and a suction device according to an embodiment of the present disclosure. Figure 13 It is a schematic structural view of the recovery storage part and the suction device from another angle according to an embodiment of the present disclosure.

[0143] As Figure 1 and Figures 11 to 13 shown, the cleaning base 100 of the present disclosure is operably connected to the main body portion 200. Specifically, in the present disclosure, the cleaning base 100 further includes a support 180 which can be fixed to the seat member 110; a connecting portion 300 is rotatably arranged on the support 180. In one embodiment, the connecting portion 300 can rotate relative to the support 180, and the rotation axis of the connecting portion 300 relative to the support 180 is a straight line extending in the lateral direction. At the same time, there is also a preset height between this rotation axis and the surface to be cleaned.

[0144] The lower end of the main body portion 200 is fixed to the connecting portion 300, whereby the main body portion 200 rotates relative to the cleaning base portion 100. Accordingly, on the one hand, the main body portion 200 can be supported on the cleaning base portion 100 in a self-supporting state. At this time, the cleaning base portion 100 is disposed substantially horizontally, while the main body portion 200 is disposed substantially vertically, or the main body portion 200 is in a forwardly inclined posture, that is, in the projection of the main body portion 200 on the horizontal plane, the upper end of the main body portion 200 is closer to the front of the surface cleaning device (cleaning base portion) than the lower end. On the other hand, the main body portion 200 can be supported on the surface to be cleaned in a laid-flat posture (lying-down posture / lying-down state), wherein the laid-flat posture means that the axis of the main body portion 200 is disposed parallel to the horizontal plane, or the angle between the axis of the main body portion 200 and the horizontal plane is about 0-5°, whereby at least a part of the rear surface of the main body portion 200 can approach the surface to be cleaned.

[0145] The main body portion 200 of the present disclosure has a height direction. Specifically, when the main body portion 200 is in an upright state and is disposed substantially vertically, this vertical direction is the height direction (axis direction) of the main body portion 200. Unless otherwise specified, the following height direction refers to the height direction of the main body portion 200.

[0146] In a specific embodiment, the main body portion 200 can be formed as a frame structure so that the main body portion 200 can accommodate components such as a recycling and storage portion 400, a gas-liquid separator 500, and a suction device 600.

[0147] In the present disclosure, when the recycling and storage portion 400 is installed on the main body portion 200, the recycling and storage portion 400 forms a part of the upper surface of the surface cleaning device. In a preferred embodiment, the upper surface of the recycling and storage portion 400 forms a part of the upper surface of the surface cleaning device. The side surface of the recycling and storage portion 400 forms a part of the side surface of the surface cleaning device, and the rear surface of the recycling and storage portion 400 forms a part of the rear surface of the surface cleaning device.

[0148] In particular, when the recycling and storage portion 400 is installed on the main body portion 200, the upper surface of the main body portion 200 and the upper surface of the solid-liquid separation device 420 together form the upper surface of the surface cleaning device. In other words, the main body portion 200 includes a first upper surface, and the recycling and storage portion 400 includes a second upper surface. When the recycling and storage portion 400 is installed on the main body portion 200, the first upper surface and the second upper surface together form the upper surface of the surface cleaning device.

[0149] Figure 14 It is a schematic structural view of another angle of the box portion according to an embodiment of the present disclosure. Figure 15 It is a schematic structural view of the solid-liquid separation device according to an embodiment of the present disclosure. Figure 16It is a schematic structural diagram of the solid-liquid separation device from another angle according to an embodiment of the present disclosure.

[0150] As Figures 14 to 16 shown, in a specific embodiment, the recycling storage unit 400 includes a box body part 410 and a solid-liquid separation device 420; wherein, a sewage pipe 411 is arranged in the box body part 410, a through hole is opened on the bottom wall of the box body part 410, the liquid inlet of the sewage pipe 411 is communicated with the through hole, and the sewage pipe 411 can be communicated with the suction port 190 of the cleaning base 100 through a pipeline, so that when a negative pressure is applied to the recycling storage unit 400, the mixture of dirt and cleaning liquid can be sucked into the recycling storage unit 400 through the pipeline and the sewage pipe 411 and stored in the recycling storage unit 400.

[0151] The upper end of the box body part 410 of the present disclosure is open, the solid-liquid separation device 420 is arranged in the box body part 410, and at least part of the solid-liquid separation device 420 is located inside the box body part 410 and at least part of it is located outside the box body part 410. Correspondingly, the upper surface of the solid-liquid separation device 420 forms a part of the upper surface of the surface cleaning device.

[0152] Figure 15 It is a schematic structural diagram of the solid-liquid separation device according to an embodiment of the present disclosure. Figure 16 It is a schematic structural diagram of the solid-liquid separation device from another angle according to an embodiment of the present disclosure.

[0153] As Figure 15 and Figure 16 shown, the solid-liquid separation device 420 of the present disclosure includes an upper member 421, and a sealing part is arranged around the upper member 421. When the solid-liquid separation device 420 is installed in the box body part 410, the upper opening of the box body part 410 is sealed by the cooperation of the sealing part and the inner peripheral surface of the box body part 410.

[0154] Moreover, the solid-liquid separation device 420 further includes a lower member 422, the lower member 422 is arranged at an interval from the upper member 421 and is connected by a connecting plate 423. A filtering structure 424 is arranged on the lower surface of the lower member 422. Wherein, sealing rings are arranged around part of the periphery of the lower member 422 and the periphery of the filtering structure 424. Thus, a sealed space can be enclosed by the lower member 422, the filtering structure 424 and the inner wall of the box body part 410. When the solid dirt and the cleaning liquid are transported into the sealed space through the sewage pipe, the cleaning liquid therein can be filtered through the filtering structure 424, and the solid dirt can be stored in the sealed space, thereby realizing the solid-liquid separation of the dirt.

[0155] Figure 17Schematic structural diagram of a first latch and a second latch according to an embodiment of the present disclosure. Figure 18 Schematic structural diagram of a first operating part according to an embodiment of the present disclosure. Figure 19 Schematic structural diagram of an actuating member according to an embodiment of the present disclosure.

[0156] The solid-liquid separation device 420 of the present disclosure further includes a first latch 425, and the first latch 425 is used to lock the solid-liquid separation device 420 at the opening of the box body part 410; wherein, the first latch 425 has a first operable stroke to unlock the solid-liquid separation device 420 from the box body part 410; specifically, the first latch 425 of the present disclosure includes a first operating part 425A, and the first operating part 425A can be formed in the form of a button. In the present disclosure, when a downward pressure is applied to the first operating part 425A, the first operating part 425A will move downward, and the two claws 425B of the first latch 425 will retract, thereby enabling the solid-liquid separation device 420 to be unlocked from the box body part 410.

[0157] In the reverse process, a bayonet is formed on the inner side wall of the box body part 410. When the first operating part 425A is not operated, under the action of the restoring force of the spring, the first operating part 425A will move upward or be held at the maximum upward displacement, whereby the two claws 425B of the first latch 425 extend and are at least partially located in the bayonet of the box body part 410, thereby locking the solid-liquid separation device 420 to the box body part 410.

[0158] The solid-liquid separation device 420 of the present disclosure further includes a housing part 427, and the housing part 427 is arranged on the upper member 421, and at least part of the first latch 425 is located in the housing part 427; in the present disclosure, the upper surface of the housing part 427 is formed as a part of the upper surface of the surface cleaning device, and a through hole is formed on the upper surface of the housing part 427, and at least part of the first operating part 425A is located in the through hole of the housing part 427 to facilitate the user to operate the first operating part 425A. In a preferred embodiment, when the first operating part 425A is at the maximum position in the upward direction, the upper surface of the first operating part 425A can be flush or substantially flush with the upper surface of the housing part 427.

[0159] In the present disclosure, the first latch 425 has a first operable stroke; wherein, the first operable stroke of the first latch 425 can be the downward movement stroke of the first operating part 425A.

[0160] The solid-liquid separation device 420 may further include an actuating member 426 operably connected to the first latch 425 such that when the first latch 425 is operated, the actuating member 426 can move outward relative to the upper member 421. That is, when the first operating portion 425A is driven to move downward, the actuating member 426 can move leftward (in the Figure 17 direction shown).

[0161] In addition, the surface cleaning device of the present disclosure may further include a second latch 700 that can be disposed on the main body portion 200. Moreover, the second latch 700 has a second operable stroke to unlock the recovery storage portion 400 from the main body portion 200; when the recovery storage portion 400 is installed on the main body portion 200, the first operable stroke is limited by the second operable stroke.

[0162] Specifically, the second latch 700 includes a second operating portion 710 and a locking hook 720, wherein the second operating portion 710 is arranged to be able to move up and down relative to the main body portion 200. In a preferred embodiment, the second operating portion 710 and the locking hook 720 may be integrally formed. When a downward external force is applied to the second operating portion 710 and it moves downward, the second operating portion 710 and the locking hook 720 move downward together, thereby releasing the recovery storage portion 400.

[0163] Specifically, when the second operating portion 710 is at the maximum position in the upward direction, the locking hook 720 can pass through the housing portion 427 and be at least partially located within the housing portion 427, and the locking hook 720 can cooperate with the side wall of the housing portion 427 to lock the recovery storage portion 400 to the main body portion 200. When the second operating portion 710 is at the maximum position in the downward direction, the locking hook 720 can be disengaged from the side wall of the housing portion 427, thereby unlocking the recovery storage portion 400 from the main body portion 200.

[0164] A through hole is provided on the upper surface of the main body portion 200 of the present disclosure, and at least a part of the second operating portion 710 is located within the through hole of the main body portion 200 to facilitate the user to operate the second operating portion 710. In a preferred embodiment, when the second operating portion 710 is at the maximum position in the upward direction, the upper surface of the second operating portion 710 can be flush or substantially flush with the upper surface of the main body portion 200 (i.e., the first upper surface).

[0165] Wherein, the second operable stroke may be the stroke of the downward movement of the second operating portion 710. Accordingly, the first operable stroke being limited by the second operable stroke means that the first operable stroke cannot be started when the second operable stroke has not started.

[0166] Based on the above structure, in the present disclosure, when the second operation part 710 is at the maximum position in the upward direction and the recycling and storage part 400 is installed on the main body part 200, the actuating member 426 can be blocked by the second latch 700 so that the first operable stroke is limited. Specifically, the actuating member 426 can be restricted by the locking hook 720. Thus, when the user presses the first operation part 425A downward, since the locking hook 720 does not allow the actuating member 426 to move leftward (outward), the first operation part 425A cannot move downward to the position where the first latch 425 is opened. At this time, the first latch 425 cannot be opened, and further, the solid-liquid separation device 420 cannot be detached from the box body part 410.

[0167] In another case, when the recycling and storage part 400 is not installed on the main body part 200, the movement of the actuating member 426 is not restricted. At this time, when the first operation part 425A is driven and moves downward, the first latch 425 can be opened and the solid-liquid separation device 420 can be released. At the same time, by applying an upward acting force to the solid-liquid separation device 420, the solid-liquid separation device 420 can be separated from the box body part 410.

[0168] In a specific embodiment, the actuating member 426 includes a push rod having a free end and an operating end opposite to the free end. The operating end is operably connected to the first operation part 425A of the first latch 425. More specifically, the first operation part 425A includes an actuating groove, and at least a part of the operating end of the push rod is located in the actuating groove to provide an actuating force to the operating end of the push rod when the first operation part 425A is operated. Thus, when the first operation part 425A moves downward, the actuating member 426 can be made to move leftward (outward).

[0169] In the present disclosure, the operating end of the push rod includes a first actuating surface 426A, and a second actuating surface 425A1 is formed in the actuating groove. When the first operation part 425A is operated, the first actuating surface 426A and the second actuating surface 425A1 cooperate to slide to drive the push rod to move. Among them, both the first actuating surface 426A and the second actuating surface 425A1 are inclined surfaces.

[0170] Correspondingly, when the recycling and storage part 400 is installed on the main body part 200, the free end is operably restricted by at least a part of the second latch 700 to restrict the movement of the push rod. Specifically, the locking hook 720 of the second latch 700 abuts against the free end of the push rod to restrict the movement of the push rod.

[0171] Thus, in the surface cleaning device of the present disclosure, through the cooperation of the first latch 425 and the second latch 700, the solid-liquid separation device can be effectively prevented from being improperly disassembled, thereby effectively preventing damage to the surface cleaning device.

[0172] Refer again toFigure 11 and Figure 19 The surface cleaning device of the present disclosure further includes a rechargeable battery 800, which is used to provide operating power for the surface cleaning device. Specifically, the rechargeable battery 800 can provide electrical energy for the cleaning base 100 (such as components like the water pump and cleaning parts of the cleaning base 100), the suction device 600, the gas-liquid separator 500, etc.

[0173] Moreover, the suction device 600 of the present disclosure can be fixed to the main body 200 and is used to provide a vacuum suction force (negative pressure) from the cleaning base 100 to the recovery storage part 400. That is to say, after the suction device 600 of the present disclosure applies negative pressure to the recovery storage part 400, this negative pressure can be provided to the suction port 190 of the cleaning base 100. Dirt and recovered liquid can, under the action of this negative pressure, enter the recovery storage part 400 through the suction port 190 and the pipeline and be stored in the box part 410 of the recovery storage part 400.

[0174] The gas-liquid separator 500 of the present disclosure can be fixed to the main body 200 and is at least partially arranged inside the recovery storage part 400. That is to say, when the recovery storage part 400 is located on the main body 200, at least part of the gas-liquid separator 500 is inside the recovery storage part 400, so that the liquid passing through the gas-liquid separator 500 can be filtered by the gas-liquid separator 500, and the gas between the gas-liquid separator 500 and the suction device 600 can be kept as dry as possible, or in other words, the gas entering the suction device 600 can be kept as dry as possible.

[0175] That is to say, in the gas flow direction, the gas-liquid separator 500 can be located upstream of the suction device 600, that is, the gas flowing out of the recovery storage part 400 first passes through the gas-liquid separator 500 for gas-liquid separation and then enters the air inlet of the suction device 600, and then is discharged from the exhaust port of the suction device 600. At this time, the air inlet of the suction device 600 is used to connect to the exhaust port of the gas-liquid separator 500.

[0176] In the present disclosure, the positions of the suction device 600 and the rechargeable battery 800 on the main body 200 are closer to the cleaning base 100 than the gas-liquid separator 500. Thus, compared with the prior art, the center of gravity of the surface cleaning device of the present disclosure is lower, and when the user operates the surface cleaning device, it has the technical effects of being easy to operate and more labor-saving.

[0177] In addition, when the surface cleaning device of the present disclosure is in use, it can be in a lying-down state, and in this lying-down state, the operation is more labor-saving.

[0178] In a preferred embodiment, the rechargeable battery 800 is closer to the cleaning base 100 than the suction device 600. This design mainly takes into account that surface cleaning devices generally require a long battery life. Correspondingly, the rechargeable battery 800 has a relatively large weight. Therefore, placing the rechargeable battery 800 at a lower position will lower the center of gravity of the surface cleaning device of the present disclosure.

[0179] Moreover, since the rechargeable battery 800 is connected to the components that need to be powered by a cable, it is the most reasonable design to place the rechargeable battery 800 at the position closest to the cleaning base 100, which will not affect the positions of other components of the surface cleaning device, such as the recycling storage unit 400, the gas-liquid separator 500, and the suction device 600.

[0180] In a preferred embodiment, the recycling storage unit 400 and the suction device 600 are disposed opposite to each other in the front-rear direction of the main body 200; relatively speaking, the recycling storage unit 400 is located at the rear side of the main body 200, while the suction device 600 is located at the front side of the main body 200. Thus, when the surface cleaning device of the present disclosure lies down, the disturbance of the liquid in the recycling storage unit 400 will be minimized; at this time, when the main body 200 is supported on the surface to be cleaned in a flat state, one surface (the rear surface) of the recycling storage unit 400 is arranged to be close to the surface to be cleaned, and the gas-liquid separator 500, the suction device 600, and the rechargeable battery 800 are all away from the surface to be cleaned relative to the recycling storage unit 400.

[0181] In the present disclosure, the gas-liquid separator 500 includes a rotatable impeller. The rotation axis of the impeller is perpendicular to the rotation axis of the suction device 600, or the rotation axis of the impeller intersects the rotation axis of the suction device 600 at an obtuse angle. Thus, in the surface cleaning device of the present disclosure, the rotation axes of the two motors are arranged in this way, which can reduce the vibration of the entire surface cleaning device and improve the user experience.

[0182] Preferably, the extension line of the rotation axis of the suction device 600 does not pass through the impeller, and the impeller of the suction device 600 and the gas-liquid separator 500 are arranged staggeredly in the front-rear direction, so that the positions of the components of the surface cleaning device of the present disclosure are arranged more reasonably, thereby reducing the volume of the surface cleaning device.

[0183] In some embodiments, at least part of the solid-liquid separation device 420 is located between the gas-liquid separator 500 and the suction device 600 in the height direction. Thus, in the height direction, the recycling storage unit 400 of the present disclosure can overlap with the gas-liquid separator 500 and the suction device 600, and correspondingly, the size of the main body 200 in the height direction can be reduced.

[0184] In a preferred embodiment, when the main body 200 is supported on the surface to be cleaned in a flat state, at least a part of the sewage pipe 411 is located below the suction device 600; and at least a part of the sewage pipe 411 is located below the rechargeable battery 800. Thus, the recycling and storage part 400 of the present disclosure can have an overlapping part with the rechargeable battery 800 and the suction device 600 in the height direction. Correspondingly, the size of the main body 200 in the height direction can be reduced.

[0185] Figure 20 FIG. is a schematic structural diagram of a surface cleaning device in a flat state (lying flat state) according to an embodiment of the present disclosure.

[0186] As Figure 20 shown, the surface cleaning device of the present disclosure further includes an operation handle 900. The operation handle 900 is detachably connected to the main body 200 through a connecting rod 910 (the connecting rod 910 is linear, and at this time the connecting rod 910 can also be referred to as an upright connecting rod); and the connecting rod 910 is arranged such that in the height direction of the main body 200, the extension line of the connecting rod 910 sequentially passes through the gas-liquid separator 500, the suction device 600, and the rechargeable battery 800, and does not pass through the recycling and storage part 400. Preferably, the connecting rod 910 is detachably connected to the first upper surface of the main body 200.

[0187] That is to say, in the present disclosure, the connection part of the connecting rod 910 and the main body 200 is located at the front part of the upper surface of the surface cleaning device. Correspondingly, the recycling and storage part 400 is located at the rear part of the main body 200, and the gas-liquid separator 500, the suction device 600, and the rechargeable battery 800 are located at the front part of the main body 200.

[0188] For the surface cleaning device of the present disclosure, through the position setting of the operation handle 900, the surface cleaning device of the present disclosure is more convenient to operate. Especially during the cleaning operation, the center of gravity of the surface cleaning device is lower, improving the user experience.

[0189] Moreover, when the surface cleaning device of the present disclosure is in a lying-down state, the connecting rod 910 is located at a position away from the surface to be cleaned. Thus, the surface cleaning device of the present disclosure can be more easily laid flat, thereby realizing the cleaning operation in a low space.

[0190] Figure 21 FIG. is a schematic structural diagram of a surface cleaning device according to another embodiment of the present disclosure. Figure 22 is Figure 21 an enlarged schematic view of part C of

[0191] As Figure 21 and Figure 22As shown, the surface cleaning device of the present disclosure may further include a sliding support portion 950. At this time, the operation handle 900 may include a hand-held portion, and the hand-held portion is set to a shape that is convenient for gripping. In other words, the hand-held portion is formed as a part of the operation handle 900, and the posture of the surface cleaning device is controlled by gripping the hand-held portion.

[0192] As Figure 22 shown, the sliding support portion 950 is provided on the hand-held portion. When the main body portion 200 is in a flat state relative to the cleaning base portion 100, the sliding support portion 950 contacts the flat surface to be cleaned and slidably supports the hand-held portion, so that the main body portion 200 does not contact the flat surface to be cleaned.

[0193] Thus, one end of the main body portion 200 of the surface cleaning device of the present disclosure (i.e., the front end in the lying state and the lower end in the upright state) can be supported by the cleaning base portion 100, and the other end of the main body portion 200 of the surface cleaning device (i.e., the rear end in the lying state and the lower end in the upright state) can be supported by the sliding support portion 950. Thus, when the main body portion 200 is in a flat state, components such as the main body portion 200 and the recycling and storage portion 400, the gas-liquid separator 500, the suction device 600, and the rechargeable battery 800 mounted on the main body portion 200 can all form supports with the flat surface to be cleaned.

[0194] By arranging the sliding support portion 950 of the surface cleaning device of the present disclosure rearward, the surface cleaning device in a lying state can be supported more stably; moreover, the rearward arranged sliding support portion 950 is far from the overall center of gravity of components such as the main body portion 200, the recycling and storage portion 400, the gas-liquid separator 500, the suction device 600, and the rechargeable battery 800 of the surface cleaning device, and the force exerted on the main body portion 200 is small. Correspondingly, the friction during the left and right movement on the surface to be cleaned is also small, thereby facilitating the user to move the surface cleaning device left and right.

[0195] In a preferred embodiment, the main body portion 200 can be in a flat state relative to the cleaning base portion 100 in a first direction, and the first direction is the rearward direction of the surface cleaning device, that is, the main body portion 200 of the surface cleaning device can be laid down backward. More preferably, when the main body portion 200 is in a flat state, the main body portion 200 and the flat surface to be cleaned form a first angle, and the first angle is 0-5°.

[0196] Accordingly, the recovery storage part 400 of the present disclosure is located at the rear side of the main body part 200 and is formed as at least a part of the outer surface of the surface cleaning device; when the sliding support part 950 contacts the flat surface to be cleaned, the recovery storage part 400 does not contact the flat surface to be cleaned, so that the surface cleaning device of the present disclosure is supported only by the cleaning base 100 and the sliding support part 950, facilitating the movement of the surface cleaning device on the surface to be cleaned.

[0197] In a preferred embodiment, the sliding support part 950 includes at least one of parallel rollers, universal wheels, and bidirectional wheels.

[0198] Figure 23 is a schematic structural view of the suction device 600 according to an embodiment of the present disclosure. Figure 24 is a schematic cross-sectional structural view of the suction device 600 according to an embodiment of the present disclosure. Figure 25 is Figure 24 an enlarged schematic structural view of part D of Figure 26 is a schematic structural view of the impeller 640 according to an embodiment of the present disclosure. Figure 27 is a schematic structural view of the impeller 640 from another angle according to an embodiment of the present disclosure.

[0199] As Figures 23 to 27 shown, the suction device 600 of the present disclosure may include a frame 610 and a housing 620.

[0200] Wherein, one end (lower end) of the housing 620 is open, and an air inlet of the suction device 600 is formed at the other end (upper end) of the housing 620; at least part of the upper end of the frame 610 is located inside the open end of the housing 620, and an exhaust port of the suction device is formed between the outer peripheral surface of the frame 610 and the inner peripheral surface of the housing 620.

[0201] Regarding the specific structures of the frame 610 and the housing 620, reference may be made to the content disclosed in the Chinese utility model patent publication document CN216907776U, and details are not described herein again in the present disclosure.

[0202] The suction device 600 of the present disclosure includes a motor 630 and an impeller 640. Among them, the motor 630 may include a stator assembly 631 and a rotor assembly 632. The stator assembly 631 may be fixed inside the frame 610 by fastening elements such as screws, and the rotor assembly 632 is rotatably arranged in the frame 610.

[0203] Specifically, taking Figure 23In the direction shown, the frame 610 includes a top wall, and the rotor assembly 632 is rotatably disposed on the top wall of the frame 610 through bearings. Therefore, during the rotation of the rotor assembly 632, some gas may enter the interior of the frame 610 through the gap between the rotor and the top wall of the frame 610, affecting the normal operation of the motor 630. The suction device of the present disclosure is a structure designed to solve this technical problem.

[0204] In the present disclosure, at least a part of the rotor assembly 632 passes through the top wall and is located outside the frame 610; that is, Figure 23 in the direction shown, at least a part (the rotating shaft) of the rotor assembly 632 is located above the frame 610.

[0205] The impeller 640 is disposed on the rotor assembly 632 and is driven by the rotor assembly 632 to rotate; in the present disclosure, the impeller 640 includes a turntable 641, and a plurality of main blades 642 are disposed on one surface of the turntable 641, and at least one auxiliary blade 643 is disposed on the other surface of the turntable 641.

[0206] Thus, by adding a set of auxiliary blades 643, the suction device 600 of the present disclosure can effectively prevent water vapor from entering the interior of the motor through the shaft gap and affecting the normal operation of the motor; correspondingly, the service life of the suction device 600 of the present disclosure is greatly improved.

[0207] In the present disclosure, when the turntable 641 rotates, the main blades 642 are used to generate an air flow from the air inlet to the air outlet, so that the suction device 600 of the present disclosure can generate a suction force, that is, can generate a negative pressure.

[0208] In one embodiment, the main blades 642 are disposed on the surface of the turntable 641 away from the frame 610, and the auxiliary blades 643 are disposed on the surface of the turntable 641 close to the frame 610. That is to say, the auxiliary blades 643 of the present disclosure can at least partially surround the shaft gap, so as to effectively prevent gas from entering the interior of the motor through the shaft gap.

[0209] As Figure 27 shown, at least one auxiliary blade 643 extends outward from a position close to the rotation center; thus, when the turntable 641 rotates, a disturbed air flow can be formed through the auxiliary blades 643, and this air flow can form a negative pressure on the shaft gap, and the gas can flow to the outside of the frame 610 through the shaft gap, effectively avoiding the reverse flow of the gas. In other words, through the arrangement of the auxiliary blades 643, the air flow generated by its rotation can blow the water or water vapor originally flowing towards the shaft gap to a position away from the shaft gap, so as to achieve the purpose of waterproofing.

[0210] More preferably, at least one auxiliary blade 643 has a height extending from the surface of the turntable 641, and the height gradually decreases outward from a position close to the rotation center of the turntable 641. Thus, on the one hand, a disturbed air flow can be effectively formed between the turntable 641 and the frame 610, and on the other hand, it can also prevent the auxiliary blade 643 from colliding with the frame 610 due to the swing of the rotating shaft during rotation.

[0211] In the present disclosure, at least one auxiliary blade 643 has the same radian. More preferably, at least one auxiliary blade 643 has the same radian as the main blade 642.

[0212] Moreover, at least one auxiliary blade 643 includes a plurality of auxiliary blades 643, and the plurality of auxiliary blades 643 are equally spaced around the center of the turntable 641 on the outer surface of the turntable 641; thus, the static balance and dynamic balance accuracy of the main blade 642 and the auxiliary blade 643 of the present disclosure are both relatively high. Correspondingly, the motor of the present disclosure can operate at a relatively high rotational speed. For example, the rotational speed of the motor of the present disclosure can reach 20,000 rps.

[0213] In a specific embodiment, at least one auxiliary blade 643 is six auxiliary blades 643. Of course, the number of auxiliary blades 643 of the present disclosure can also be set to other values.

[0214] The suction device 600 of the present disclosure further includes a diffuser 650. The impeller 640 is adjacent to the diffuser 650 installed on the frame 610. The diffuser 650 includes a plurality of diffuser blades. Moreover, the diffuser 650 is disposed in the path of the air flow from the air inlet to the air outlet, and thus the gas diffused by the diffuser 650 is discharged outward through the air outlet.

[0215] Preferably, a circular groove 651 is formed on the plane of the diffuser 650 facing the impeller 640. More preferably, the circular groove 651 has a bottom surface, and the highest point of at least one auxiliary blade 643 has a first distance from the bottom surface, and the first distance is less than 1 mm; thus, in the present disclosure, even if there are auxiliary blades in the present disclosure, the distance between the turntable 641 and the diffuser 650, and the distance between the turntable 641 and the frame 610 can be controlled within a preset range, so as not to increase the size of the suction device in the axial direction.

[0216] According to another aspect of the present disclosure, a surface cleaning system is provided, which includes the above-mentioned surface cleaning device.

[0217] The surface cleaning system of the present disclosure may further include a base station, and the surface cleaning device can dock at the base station and be charged by the base station, etc.

[0218] The base station can be implemented by adopting the technical solutions in the prior art, and the present disclosure will not elaborate on them one by one here.

[0219] In the description of this specification, the descriptions with reference to the terms "one embodiment / way", "some embodiments / ways", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment / way or example are included in at least one embodiment / way or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment / way or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments / ways or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments / ways or examples described in this specification and the features of different embodiments / ways or examples.

[0220] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0221] Those skilled in the art should understand that the above embodiments are only for clearly explaining the present disclosure and are not intended to limit the scope of the present disclosure. For those skilled in the art, other changes or modifications can be made based on the above disclosure, and these changes or modifications are still within the scope of the present disclosure.

Claims

1. A suction device, characterized in that, Comprising: A motor, the motor including a rotor assembly; A frame for supporting the rotor assembly of the motor, the frame including a top wall, at least a part of the rotor assembly passing through the top wall and being located outside the frame; And An impeller provided on the rotor assembly and driven by the rotor assembly to rotate; wherein the impeller includes a turntable, a plurality of main blades being provided on one surface of the turntable, and at least one secondary blade being provided on the other surface of the turntable.

2. The suction device according to claim 1, characterized in that, Further comprising: A housing for forming an air inlet and an air outlet of the suction device, when the turntable rotates, the main blades being used for generating an air flow from the air inlet to the air outlet.

3. The suction device according to claim 1, characterized in that, The main blades are provided on the surface of the turntable away from the frame, and the secondary blades are provided on the surface of the turntable close to the frame.

4. The suction device according to claim 1, characterized in that, At least one of the secondary blades extends outward from a position close to the rotation center.

5. The suction device according to claim 1, characterized in that, At least one of the secondary blades has a height extending from the surface of the turntable, the height gradually decreasing outward from a position close to the rotation center of the turntable.

6. The suction device according to claim 1, characterized in that, Each of the at least one secondary blade has the same radian.

7. The suction device according to claim 1, characterized in that, The at least one secondary blade has the same radian as the main blade.

8. The suction device according to claim 1, characterized in that, The at least one secondary blade includes a plurality of secondary blades, the plurality of secondary blades being evenly spaced around the turntable center on the outer surface of the turntable.

9. The suction device according to claim 1, characterized in that, The at least one secondary blade is six secondary blades; Optionally, the impeller is adjacent to a diffuser mounted on the frame, the diffuser including a plurality of diffuser blades; Optionally, a circular groove is formed on the plane of the diffuser facing the impeller; Optionally, the circular groove has a bottom surface, and a first distance is provided between the highest point of the at least one secondary blade and the bottom surface, the first distance being less than 1 mm.

10. A wet surface cleaning device, characterized in that, Including the suction device according to any one of claims 1-9.

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