Cleaning device and surface cleaning equipment

Abstract

The utility model discloses a sweeping device and surface cleaning equipment, and relates to the technical field of surface cleaning. The cleaning device comprises a shell assembly, a first driving unit, a rotating seat assembly, a second driving unit and a cleaning brush; the first driving unit is installed on the shell assembly. The rotating seat assembly is rotationally mounted on the shell assembly and is in transmission connection with the first driving unit, and the first driving unit is used for driving the rotating seat assembly to rotate around a first rotating axis; the second driving unit is mounted on the rotating seat assembly; the cleaning brush is rotationally mounted on one side of the rotating seat assembly and is in transmission connection with the second driving unit, the second driving unit is used for driving the cleaning brush to rotate around a second rotating axis, and the second rotating axis is parallel to the first rotating axis. The cleaning device provided by the utility model can realize cleaning of edges and corners.

Description

Technical Field

[0001] This application relates to the field of surface cleaning technology, and in particular to a cleaning device and surface cleaning equipment. Background Technology

[0002] Currently, robotic vacuum cleaners are increasingly appearing in people's daily lives, replacing users in cleaning floors and providing convenience for their lives.

[0003] However, existing robotic vacuum cleaners often fail to clean edges and corners properly, affecting the user experience. Utility Model Content

[0004] This application provides a cleaning device and surface cleaning equipment to improve the cleaning effect of the cleaning device.

[0005] This application provides a cleaning device, including:

[0006] Housing assembly;

[0007] The first drive unit is mounted on the housing assembly;

[0008] A rotating seat assembly is rotatably mounted on the housing assembly and is connected to the first drive unit, which drives the rotating seat assembly to rotate around a first rotation axis.

[0009] The second drive unit is mounted on the rotating base assembly;

[0010] A sweeping brush is rotatably mounted on one side of the rotating base assembly and is connected to the second drive unit. The second drive unit is used to drive the sweeping brush to rotate around a second rotation axis, which is parallel to the first rotation axis.

[0011] In some possible implementations, the first drive unit includes a first drive member and a first transmission mechanism, the first transmission mechanism being drively connected between the first drive member and the rotating seat assembly.

[0012] In some possible implementations, the first transmission mechanism includes a first engaging member and a second engaging member, the first engaging member being driven to the first driving member, and the second engaging member being driven to the rotating seat assembly.

[0013] The first driving member is used to drive the first engaging member to rotate, thereby causing the second engaging member to rotate and driving the rotating seat assembly to rotate around the first rotation axis.

[0014] In some possible implementations, the first transmission mechanism further includes a first transmission gear, a second transmission gear, and meshing teeth located around the rotating seat assembly;

[0015] The first transmission gear is connected to the second meshing member, and the second transmission gear is connected to both the first transmission gear and the meshing member.

[0016] In some possible implementations, the first transmission mechanism further includes an elastic element and a first mounting shaft, the first mounting shaft being rotatably mounted in the housing assembly and parallel to the first rotation axis, the second engaging element being fixedly sleeved on the first mounting shaft, and the first transmission gear being slidably sleeved on the first mounting shaft;

[0017] The first transmission gear has a first concave-convex portion on the side facing the second meshing member, and the first concave-convex portion is arranged around the first mounting shaft;

[0018] The second meshing member is provided with a second concave-convex portion that is complementary to the first concave-convex portion on the side facing the first transmission gear, and the second concave-convex portion is inserted into and connected to the first concave-convex portion.

[0019] The elastic element acts on the first transmission gear, and the elastic element is used to drive the first concave and convex portion to engage with the second concave and convex portion.

[0020] In some possible implementations, the first transmission mechanism further includes a first bushing and a second bushing, both of which are fixedly sleeved on the first mounting shaft. The first bushing is located on the side of the second meshing member opposite to the first transmission gear, and the second bushing is located on the side of the first transmission gear opposite to the second meshing member, and is spaced apart from the first transmission gear.

[0021] The elastic element abuts between the second bushing and the first transmission gear;

[0022] When the first transmission mechanism is not subjected to external force, the first concave and convex parts are engaged with each other, and the elastic element is in a natural elongation state or a compression state.

[0023] In some possible implementations, the first meshing element includes a worm gear, which is fixedly connected to and coaxial with the output shaft of the first drive element.

[0024] The second meshing element includes a first helical gear, which meshes with the worm gear.

[0025] In some possible implementations, the second drive unit includes a second drive member and a second transmission mechanism, the second transmission mechanism being drively connected between the second drive member and the cleaning brush.

[0026] In some possible implementations, the second transmission mechanism includes a second helical gear, a third helical gear, a third transmission gear, and a fourth transmission gear;

[0027] The second helical gear is fixedly connected to the output shaft of the second drive member. The second helical gear meshes with the third helical gear. The third transmission gear is coaxial with and fixedly connected to the third helical gear. The third transmission gear is fixedly connected to the fourth transmission gear. The fourth transmission gear is connected to the cleaning brush.

[0028] In addition, this application also provides a surface cleaning device, including the cleaning apparatus provided in the above embodiments.

[0029] The beneficial effects of this application are as follows: The cleaning device provided by this application can drive the cleaning brush to rotate via the second drive unit to achieve the cleaning function. When it is necessary to clean the edges and / or corners, the first drive unit can drive the rotating seat assembly to rotate, and drive the cleaning brush to rotate synchronously around the first rotation axis, so that the cleaning brush can clean the edges and / or corners. At the same time, the cleaning range of the cleaning brush can also be expanded, improving cleaning efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A three-dimensional structural schematic diagram of the cleaning device is shown in some embodiments;

[0032] Figure 2 A cross-sectional structural schematic diagram of the cleaning device in some embodiments is shown;

[0033] Figure 3 Exploded structural diagrams of the cleaning device in some embodiments are shown;

[0034] Figure 4 A partial exploded structural schematic diagram of the first transmission mechanism in some embodiments is shown;

[0035] Figure 5 An exploded structural diagram of the second drive unit in some embodiments is shown;

[0036] Figure 6 Schematic diagrams of surface cleaning devices in some embodiments are shown.

[0037] Explanation of key component symbols:

[0038] 1000 - Cleaning device;

[0039] 100 - Housing assembly; 101 - First assembly cavity; 110 - First housing; 111 - Stroke groove; 120 - Second housing; 121 - Receiving cavity; 130 - Protective cover;

[0040] 200 - First drive unit; 210 - First drive component; 220 - First transmission mechanism; 221 - First meshing component; 222 - Second meshing component; 2231 - First mounting shaft; 2232 - Second mounting shaft; 2241 - First transmission gear; 22411 - First concave-convex portion; 2242 - Second transmission gear; 225 - Elastic element; 2261 - First bushing; 2262 - Second bushing; 227 - Meshing tooth;

[0041] 300 - Rotary seat assembly; 301 - Second assembly cavity; 310 - First rotating seat; 311 - Trigger part; 320 - Second rotating seat;

[0042] 400 - Second drive unit; 410 - Second drive component; 420 - Second transmission mechanism; 421 - Second helical gear; 422 - Third helical gear; 423 - Third transmission gear; 424 - Fourth transmission gear; 4241 - Connecting part; 4251 - Third mounting shaft; 4252 - Fourth mounting shaft;

[0043] 510 - Cleaning brush; 520 - Connecting spring;

[0044] 610 - First sensor; 620 - Second sensor;

[0045] 700-Bearing;

[0046] 2000 - Main body of cleaning equipment. Detailed Implementation

[0047] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0048] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0050] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0051] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] like Figure 1 and Figure 6 As shown, the embodiment provides a cleaning device 1000, which can be applied in surface cleaning equipment to provide cleaning functions. The surface cleaning equipment can be a type of sweeper, floor scrubber, etc., and the cleaning device 1000 can be a side-sweeping structure within the surface cleaning equipment.

[0053] like Figures 1 to 3 , Figure 5 As shown, the cleaning device 1000 may include a housing assembly 100, a first drive unit 200, a rotating seat assembly 300, a second drive unit 400, and a cleaning brush 510.

[0054] The first drive unit 200 can be mounted on the housing assembly 100. The rotating seat assembly 300 is rotatably mounted on the housing assembly 100 and is drively connected to the first drive unit 200. Thus, the first drive unit 200 can drive the rotating seat assembly 300 to rotate relative to the housing assembly 100 about a first rotation axis.

[0055] The second drive unit 400 is mounted on the rotating base assembly 300. The sweeping brush 510 is rotatably mounted on one side of the rotating base assembly 300. The sweeping brush 510 can be connected to the second drive unit 400 via a transmission connection. During use, the second drive unit 400 can drive the sweeping brush 510 to rotate around a second rotation axis to achieve the sweeping function. The second rotation axis can be parallel to the first rotation axis.

[0056] During use, the second drive unit 400 can drive the sweeping brush 510 to rotate to achieve the sweeping function. When it is necessary to clean the edges and / or corners, the first drive unit 200 can drive the rotating seat assembly 300 to rotate, and drive the sweeping brush 510 to rotate synchronously around the first rotation axis. The sweeping brush 510 can clean the edges and / or corners, and at the same time, it can also expand the cleaning range of the sweeping brush 510 and improve cleaning efficiency.

[0057] like Figures 1 to 4 As shown, the housing assembly 100 includes a first housing 110 and a second housing 120. The first housing 110 and the second housing 120 are disposed opposite to each other and cooperate to form a first assembly cavity 101. In some embodiments, the first housing 110 and the second housing 120 can be fixedly connected by means of screw connection, snap-fit ​​or adhesive.

[0058] In some embodiments, the first drive unit 200 may include a first drive member 210 and a first transmission mechanism 220. The first transmission mechanism 220 is tractively connected between the first drive member 210 and the rotating seat assembly 300. The first drive member 210 can be used to drive the first transmission mechanism 220 to rotate, thereby causing the rotating seat assembly 300 to rotate around a first rotation axis.

[0059] In some embodiments, the first drive member 210 may be a motor. The first transmission mechanism 220 includes a first engaging member 221 and a second engaging member 222. Both the first engaging member 221 and the second engaging member 222 are located in the first assembly cavity 101. The output shaft of the first drive member 210 may pass through the housing assembly 100 and extend into the first assembly cavity 101. The first engaging member 221 may be connected to the output shaft of the first drive member 210.

[0060] One end of the rotating seat assembly 300 can pass through the housing assembly 100 and extend into the first assembly cavity 101. In the embodiment, the end of the rotating seat assembly 300 located in the first assembly cavity 101 can be rotatably mounted on the side of the first housing 110 facing the second housing 120 via a bearing 700, and is drively connected to the second engaging member 222.

[0061] In some embodiments, the first meshing member 221 may include a worm gear. One end of the worm gear may be fixedly connected to the output shaft of the first drive member 210. The worm gear may be coaxial with the output shaft of the first drive member 210 and perpendicular to the first rotation axis. The second meshing member 222 may be a first helical gear and meshes with the worm gear.

[0062] In other embodiments, the first driving member 210 may also be an electric push rod, cylinder, or other similar structure. The first engaging member 221 may also be a rack and pinion, and the first engaging member 221 is telescopically disposed in the first assembly cavity 101. The second engaging member 222 may be a spur gear and is engaged with the first engaging member 221. When the first driving member 210 drives the first engaging member 221 to extend or retract, it can drive the second engaging member 222 to rotate.

[0063] In some embodiments, the first transmission mechanism 220 further includes a first mounting shaft 2231, which is parallel to the first rotation axis. The first mounting shaft 2231 is disposed in the first assembly cavity 101. One end of the first mounting shaft 2231 is rotatably connected to the side of the first housing 110 facing the first assembly cavity 101 via a bearing 700, and the other end of the first mounting shaft 2231 is also rotatably connected to the side of the second housing 120 facing the first assembly cavity 101 via a bearing 700. The second engaging member 222 can be sleeved on the first mounting shaft 2231 and can be fixed relative to the first mounting shaft 2231 by means of interference fit or other methods. When the first driving member 210 drives the first engaging member 221 to rotate, the first engaging member 221 can drive the second engaging member 222 to rotate relative to the housing assembly 100.

[0064] In some embodiments, the first transmission mechanism 220 further includes a first transmission gear 2241, a second transmission gear 2242, and meshing teeth 227 located around the rotating seat assembly 300. The first transmission gear 2241 is slidably sleeved on the first mounting shaft 2231, and the first transmission gear 2241 is drively connected to the second meshing member 222. The second transmission gear 2242 can be rotatably mounted in the first assembly cavity 101 via the second mounting shaft 2232. The second mounting shaft 2232 is parallel to the first mounting shaft 2231. In addition, one side of the second transmission gear 2242 can mesh with the first transmission gear 2241. In some embodiments, both the first transmission gear 2241 and the second transmission gear 2242 are spur gears.

[0065] In this embodiment, the meshing tooth 227 may be located on the periphery of one end of the rotating seat assembly 300 located in the first assembly cavity 101, and is arranged around the first rotation axis. The meshing tooth 227 may mesh with the side of the second transmission gear 2242 opposite to the first transmission gear 2241.

[0066] In some embodiments, the first transmission gear 2241 has a first protrusion 22411 disposed on the side facing the second engagement member 222. The first protrusion 22411 may surround the first mounting shaft 2231. The second engagement member 222 may have a second protrusion (not shown) complementary to the first protrusion 22411 on the side facing the first transmission gear 2241. The second protrusion may engage with the first protrusion 22411.

[0067] When the first driving member 210 drives the second meshing member 222 to rotate through the first meshing member 221, it can drive the first transmission gear 2241 to rotate synchronously. Then, the power can be transmitted to the rotating seat assembly 300 in sequence through the first transmission gear 2241, the second transmission gear 2242 and the meshing teeth 227, so as to drive the rotating seat assembly 300 to rotate around the first rotation axis.

[0068] In some embodiments, the first transmission mechanism 220 further includes an elastic element 225, a first bushing 2261, and a second bushing 2262. The elastic element 225 may be a spring. Both the first bushing 2261 and the second bushing 2262 are fixedly sleeved on the first mounting shaft 2231. The first bushing 2261 abuts against the side of the second meshing member 222 opposite to the first transmission gear 2241, and the second bushing 2262 is located on the side of the first transmission gear 2241 opposite to the second meshing member 222, and is spaced apart from the first transmission gear 2241. The elastic element 225 may be sleeved on the first mounting shaft 2231. One end of the elastic element 225 abuts against the side of the first transmission gear 2241 opposite to the second meshing member 222, and the other end of the elastic element 225 abuts against the side of the second bushing 2262 facing the first transmission gear 2241. When the first transmission mechanism 220 is not subjected to external force, the elastic element 225 can be in a naturally extended or compressed state, and the first concave-convex portion 22411 can be engaged with the second concave-convex portion. Thus, the power can be smoothly transmitted to the first transmission gear 2241 by the second meshing member 222.

[0069] In other embodiments, the elastic element 225 may also be a flexible column or a sheet.

[0070] In other embodiments, one end of the elastic member 225 may be fixedly connected to the first transmission gear 2241, and the other end of the elastic member 225 may be fixedly connected to the second housing 120 or the first bushing 2261. When the first transmission mechanism 220 is not subjected to external force, the elastic member 225 may be in a naturally elongated state or a stretched state, and the first concave-convex portion 22411 may be engaged with the second concave-convex portion.

[0071] In this embodiment, the first transmission gear 2241 is floating relative to the second meshing member 222. When the first transmission mechanism 220 experiences jamming during operation (e.g., jamming between the first transmission gear 2241, the second transmission gear 2242, and the meshing teeth 227), the second meshing member 222 can press the first transmission gear 2241 and the elastic member 225, causing the first transmission gear 2241 to move away from the second meshing member 222, thus separating the first transmission gear 2241 from the second meshing member 222. When the first transmission gear 2241 separates from the second meshing member 222, the power transmission between the first transmission gear 2241 and the second meshing member 222 is temporarily interrupted. The second meshing member 222 can continue to rotate under the driving action of the first driving member 210, and the first transmission gear 2241, the second transmission gear 2242, and the rotating seat assembly 300 can temporarily stop rotating, preventing the power from continuing to flow to the first transmission gear 2241, the second transmission gear 2242, and the rotating seat assembly 300 and causing further jamming. Thus, it also provides an opportunity to adjust the jamming problem. Once the jamming is released, the first transmission gear 2241 can be reset under the action of the elastic member 225, and the first concave-convex part 22411 can be inserted into the second concave-convex part on the second meshing member 222. The first transmission gear 2241 can continue to rotate under the drive of the second meshing member 222 to realize power transmission.

[0072] In other embodiments, the first transmission gear 2241 may also be fixedly connected to the second meshing member 222 by means of screw connection, welding or integral molding.

[0073] like Figure 1 , Figure 5 and Figure 6 As shown, the first housing 110 also has a travel groove 111, into which the rotating seat assembly 300 can pass. Thus, the travel groove 111 can limit the rotational travel of the rotating seat assembly 300. In addition, the cleaning device 1000 also includes a first sensor 610 and a second sensor 620. Both the first sensor 610 and the second sensor 620 are fixedly installed on the side of the second housing 120 opposite to the first housing 110, wherein the first sensor 610 is disposed at one end of the travel groove 111, and the second sensor 620 is disposed at the other end of the travel groove 111.

[0074] Correspondingly, a trigger portion 311 protrudes from the side of the rotating seat assembly 300 facing the second housing 120. The trigger portion 311 can pass through the second housing 120 and protrude from the side of the second housing 120 opposite to the first housing 110. Accordingly, a through groove can be formed on the second housing 120 for the trigger portion 311 to pass through, and the through groove can be consistent with the extension direction and extension length of the stroke groove 111. In some embodiments, the first sensor 610, the second sensor 620, and other electrical components in the cleaning device 1000 can be electrically connected to the control unit of the cleaning device body 2000 in the surface cleaning device, so that the control unit can uniformly control the operation of each electrical component in the cleaning device 1000.

[0075] In some embodiments, both the first sensor 610 and the second sensor 620 can be tactile switches. The switches of both the first sensor 610 and the second sensor 620 can be located on the movement path of the trigger portion 311. When the trigger portion 311 passes by, it can squeeze the switch of the corresponding sensor to trigger the corresponding sensor to generate a sensing signal.

[0076] In other embodiments, the first sensor 610 and the second sensor 620 may also be photoelectric switches. The trigger part 311 may be a baffle or the like.

[0077] In some embodiments, the rotating seat assembly 300 and the cleaning brush 510 may have an initial position. In some embodiments, the end corresponding to the first sensing element 610 may be recorded as the initial position.

[0078] In some other embodiments, the position corresponding to the second sensing element 620 can be recorded as the initial position.

[0079] When the obstacle avoidance unit in the main body 2000 of the cleaning equipment detects that the surface cleaning equipment has reached the edge or corner position, the control unit can control the first drive member 210 to start, driving the rotating seat assembly 300 and the sweeping brush 510 to rotate around the first rotation axis, so that the rotating seat assembly 300 and the sweeping brush 510 move from the initial position to the other end of the stroke groove 111. When the rotating seat assembly 300 rotates to the correct position, the triggering part 311 can trigger the second sensor 620 at the corresponding position to generate a corresponding sensing signal, and send the sensing signal to the control unit. The control unit can control the first drive member 210 to stop moving and stop moving for a preset time. Afterwards, the control unit can control the first drive member 210 to reverse, so that the rotating seat assembly 300 drives the sweeping brush 510 to move in the opposite direction and reset to the initial position.

[0080] In this embodiment, when the rotating seat assembly 300 rotates to its position but the triggering part 311 does not trigger the corresponding sensing element, the rotating seat assembly 300 will collide with the housing assembly 100. During this process, the second engaging member 222 can squeeze the first transmission gear 2241, causing the first transmission gear 2241 to separate from the second engaging member 222. Thus, the first driving member 210 can continue to drive the second engaging member 222 to rotate, preventing the load on the first driving member 210 from suddenly increasing excessively and causing damage. This also reduces the possibility of damage to the first driving member 210.

[0081] like Figure 2 , Figure 3 and Figure 5 As shown, the rotating seat assembly 300 may include a first rotating seat 310 and a second rotating seat 320. The first rotating seat 310 may be disposed opposite to the second rotating seat 320 and cooperate to form a second assembly cavity 301. In some embodiments, the first rotating seat 310 and the second rotating seat 320 may be fixedly connected by means of screw connection or snap-fit.

[0082] In some embodiments, the side of the first rotating seat 310 opposite to the second rotating seat 320 can be rotatably mounted on the side of the first housing 110 facing the second housing 120 via a bearing 700. Engaging teeth 227 can be formed on the side of the second housing 120 opposite to the second assembly cavity 301 and disposed near one end of the first drive unit 200 for meshing with the second transmission gear 2242. That is, the engaging teeth 227 are formed on the outer side of the second rotating seat 320.

[0083] The second drive unit 400 may include a second drive member 410 and a second transmission mechanism 420. The second transmission mechanism 420 is tractively connected between the second drive member 410 and the sweeping brush 510. The second drive member 410 can drive the second transmission mechanism 420 to operate, thereby causing the sweeping brush 510 to rotate around a second rotation axis.

[0084] In some embodiments, the second drive member 410 may be a motor. The second drive member 410 may be disposed on the side of the second rotating seat 320 opposite to the first rotating seat 310 and installed in the receiving cavity 121 on the second housing 120. The receiving cavity 121 may communicate with the first assembly cavity 101 and the side of the second housing 120 opposite to the first housing 110, respectively. The end of the second drive member 410 away from the second rotating seat 320 may protrude relative to the side of the second housing 120 opposite to the first housing 110.

[0085] The output shaft of the second drive member 410 can pass through the second rotating seat 320 and extend into the second assembly cavity 301. The second transmission mechanism 420 can be installed in the second assembly cavity 301 and is drively connected to the output shaft of the second drive member 410. Furthermore, the output shaft of the second drive member 410 can be coaxial with the first rotation axis. The rotating seat assembly 300 can rotate relative to the second drive member 410.

[0086] In some embodiments, the housing assembly 100 further includes a protective cover 130, which may be disposed on the side of the second housing 120 opposite to the first housing 110, and may also be disposed on the end of the second drive member 410 opposite to the rotating seat assembly 300. Thus, the protective cover 130 can provide corresponding protection for the second drive member 410. In embodiments, the protective cover 130 may be fixedly connected to the second housing 120 by means of screw connection or snap-fit ​​connection.

[0087] In some embodiments, the second transmission mechanism 420 may include a second helical gear 421, a third helical gear 422, a third transmission gear 423, and a fourth transmission gear 424. The second helical gear 421 is fixedly connected to the output shaft of the second drive member 410 and is coaxially arranged with the output shaft of the second drive member 410. The third helical gear 422 is rotatably mounted in the second assembly cavity 301 via a third mounting shaft 4251, and one side of the third helical gear 422 can mesh with the second helical gear 421. In this embodiment, the third mounting shaft 4251 is parallel to the second rotation axis. Additionally, the third transmission gear 423 may also be sleeved on the third mounting shaft 4251, and the third transmission gear 423 and the third helical gear 422 are fixedly connected by integral connection or welding. In some embodiments, the third transmission gear 423 may be located on the side of the third helical gear 422 facing the first rotating seat 310.

[0088] In this embodiment, the transmission is achieved through the second helical gear 421 and the third helical gear 422. On the one hand, noise reduction can be achieved, and on the other hand, the second helical gear 421 and the third helical gear 422 can have a larger meshing area, thereby improving power transmission efficiency and ensuring smooth power transmission.

[0089] The fourth transmission gear 424 can be rotatably mounted in the second assembly cavity 301 via the fourth mounting shaft 4252. The fourth mounting shaft 4252 is parallel to the third mounting shaft 4251, and can also be coaxial with the second rotation axis. The fourth transmission gear 424 can mesh with the third transmission gear 423. In some embodiments, the fourth transmission gear 424 has a connecting portion 4241 protruding from the side facing the first rotating seat 310. The connecting portion 4241 can pass through the first rotating seat 310 and protrudes from the side of the first rotating seat 310 opposite to the second rotating seat 320.

[0090] In this embodiment, the cleaning device 1000 further includes a connecting spring 520, which can be fixedly connected to the connecting part 4241 by screws. The cleaning brush 510 can be snapped into the connecting spring 520 to achieve a detachable connection between the cleaning brush 510 and the fourth transmission gear 424, facilitating the user's disassembly and assembly of the cleaning brush 510. Thus, the fourth transmission gear 424 can drive the cleaning brush 510 to rotate around the second rotation axis. During use, the second driving member 410 can drive the second transmission mechanism 420 to operate, thereby driving the cleaning brush 510 to rotate around the second rotation axis.

[0091] like Figure 6 As shown, the embodiment also provides a surface cleaning device, which may include a cleaning device body 2000 and a sweeping device 1000 provided in the embodiment. The sweeping device 1000 may be installed on the near-ground side of the cleaning device body 2000 to provide a sweeping function.

[0092] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0093] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A cleaning device, characterized in that, include: Housing assembly; The first drive unit is mounted on the housing assembly; A rotating seat assembly is rotatably mounted on the housing assembly and is connected to the first drive unit, which drives the rotating seat assembly to rotate around a first rotation axis. The second drive unit is mounted on the rotating base assembly; A sweeping brush is rotatably mounted on one side of the rotating base assembly and is connected to the second drive unit. The second drive unit is used to drive the sweeping brush to rotate around a second rotation axis, which is parallel to the first rotation axis.

2. The cleaning device according to claim 1, characterized in that, The first drive unit includes a first drive member and a first transmission mechanism, wherein the first transmission mechanism is drively connected between the first drive member and the rotating seat assembly.

3. The cleaning device according to claim 2, characterized in that, The first transmission mechanism includes a first meshing member and a second meshing member that are engaged with each other. The first meshing member is driven by the first driving member, and the second meshing member is driven by the rotating seat assembly. The first driving member is used to drive the first engaging member to rotate, thereby causing the second engaging member to rotate and driving the rotating seat assembly to rotate around the first rotation axis.

4. The cleaning device according to claim 3, characterized in that, The first transmission mechanism further includes a first transmission gear, a second transmission gear, and meshing teeth located on the periphery of the rotating seat assembly; The first transmission gear is connected to the second meshing member, and the second transmission gear is connected to both the first transmission gear and the meshing member.

5. The cleaning device according to claim 4, characterized in that, The first transmission mechanism further includes an elastic element and a first mounting shaft. The first mounting shaft is rotatably mounted in the housing assembly and is parallel to the first rotation axis. The second meshing element is fixedly sleeved on the first mounting shaft, and the first transmission gear is slidably sleeved on the first mounting shaft. The first transmission gear has a first concave-convex portion on the side facing the second meshing member, and the first concave-convex portion is arranged around the first mounting shaft; The second meshing member is provided with a second concave-convex portion that is complementary to the first concave-convex portion on the side facing the first transmission gear, and the second concave-convex portion is inserted into and connected to the first concave-convex portion. The elastic element acts on the first transmission gear, and the elastic element is used to drive the first concave and convex portion to engage with the second concave and convex portion.

6. The cleaning device according to claim 5, characterized in that, The first transmission mechanism further includes a first bushing and a second bushing. Both the first bushing and the second bushing are fixedly sleeved on the first mounting shaft. The first bushing is located on the side of the second meshing member away from the first transmission gear, and the second bushing is located on the side of the first transmission gear away from the second meshing member, and is spaced apart from the first transmission gear. The elastic element abuts between the second bushing and the first transmission gear; When the first transmission mechanism is not subjected to external force, the first concave and convex parts are engaged with each other, and the elastic element is in a natural elongation state or a compression state.

7. The cleaning device according to any one of claims 3 to 6, characterized in that, The first meshing component includes a worm gear, which is fixedly connected to the output shaft of the first driving component and is coaxial with the output shaft of the first driving component. The second meshing element includes a first helical gear, which meshes with the worm gear.

8. The cleaning device according to claim 1, characterized in that, The second drive unit includes a second drive member and a second transmission mechanism, wherein the second transmission mechanism is drively connected between the second drive member and the cleaning brush.

9. The cleaning device according to claim 8, characterized in that, The second transmission mechanism includes a second helical gear, a third helical gear, a third transmission gear, and a fourth transmission gear; The second helical gear is fixedly connected to the output shaft of the second drive member. The second helical gear meshes with the third helical gear. The third transmission gear is coaxial with and fixedly connected to the third helical gear. The third transmission gear is fixedly connected to the fourth transmission gear. The fourth transmission gear is connected to the cleaning brush.

10. A surface cleaning device, characterized in that, Includes the cleaning device as described in any one of claims 1 to 9.

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