Multi-stage rolling brush driving device, floor brush assembly, cleaning equipment and cleaning system

Abstract

The utility model discloses a multi-stage rolling brush driving device, a floor brush assembly, cleaning equipment and a cleaning system, and belongs to the technical field of cleaning equipment.The multi-stage rolling brush driving device comprises a base frame; the transmission mechanism is arranged on the base frame and provided with a power input end, a first output shaft and a second output shaft, the first output shaft and the second output shaft are coaxially arranged, and the first output shaft and the second output shaft are in transmission connection with the power input end; the first output shaft can drive the first rolling brush to output a first rotating speed, the second output shaft can drive the second rolling brush to output a second rotating speed, and the first rotating speed is unequal to the second rotating speed; the driving part is arranged on the base frame, and the driving end of the driving part is connected with the power input end. Different rotating speeds are output through the same driving piece through the transmission mechanism, the different rotating speeds are matched with the working rotating speeds needed by different to-be-cleaned surfaces, different cleaning devices do not need to be replaced, and the convenience of cleaning operation is improved; the first output shaft and the second output shaft are coaxially arranged, so that the overall space occupation is reduced, and the influence on the appearance of a cleaning product is reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of cleaning equipment, and specifically relates to a multi-stage roller brush driving device, a floor brush assembly, a cleaning equipment and a cleaning system. Background Art

[0002] Cleaning equipment such as floor scrubbers are mostly only suitable for floor cleaning. With the popular use of laying products such as carpets in households, the cleaning needs in households are not limited to floor cleaning.

[0003] Since the materials of different surfaces to be cleaned are different, the corresponding cleaning methods will also be different. At the same time, it is necessary to adaptably replace roller brushes of different materials. Therefore, in order to achieve the demand for good cleaning effects on different surfaces to be cleaned (for example, there are different requirements for wet cleaning and dry cleaning for different surfaces to be cleaned), it is usually necessary to replace different cleaning equipment back and forth, which makes the cleaning operation inconvenient. Utility Model Content

[0004] Purpose of the utility model: to provide a multi-stage roller brush drive device to solve the above-mentioned technical problems; another purpose of the present application is to provide a floor brush assembly using the above-mentioned multi-stage roller brush drive device; another purpose of the present application is to provide a cleaning device using the above-mentioned floor brush assembly; another purpose of the present application is to provide a cleaning system using the above-mentioned cleaning device.

[0005] Technical solution: A multi-stage roller brush driving device, comprising:

[0006] Scaffolding;

[0007] A transmission mechanism, the transmission mechanism is arranged on the base frame, the transmission mechanism has a power input end, a first output shaft and a second output shaft, the first output shaft and the second output shaft are coaxially arranged, and the first output shaft and the second output shaft are respectively connected to the power input end in a transmission manner;

[0008] The first output shaft can drive the first roller brush to output a first rotational speed, and the second output shaft can drive the second roller brush to output a second rotational speed, and the first rotational speed is different from the second rotational speed;

[0009] A driving member is arranged on the base frame, and a driving end of the driving member is connected to the power input end.

[0010] By adopting the above technical solution, when using a multi-stage roller brush driving device, a first roller brush or a second roller brush suitable for the material of the surface to be cleaned is selected. If the first roller brush is used, the first roller brush is installed to the first output shaft, and power is input to the power input end of the transmission mechanism through the driving member, and the first roller brush is driven by the first output shaft to rotate at a first speed, so that the first roller brush cleans the surface to be cleaned at the first speed; similarly, if the second roller brush is used, the second roller brush is installed to the second output shaft, and power is input to the power input end of the transmission mechanism through the driving member, and the second roller brush is driven by the second output shaft to rotate at a second speed, so that the second roller brush cleans the surface to be cleaned at the second speed. At present, when the surface to be cleaned needs to be wet cleaned and dry cleaned, different cleaning equipment needs to be replaced. However, the technical solution of the present application does not need to replace different cleaning equipment, and only the roller brush needs to be replaced, which is more convenient. However, when the roller brush for dry cleaning is replaced, if the lower speed of the roller brush for wet cleaning is still used, it is difficult to achieve the dust collection effect. Therefore, further, in order to achieve dry cleaning and wet cleaning of different items to be cleaned in a more convenient way, the present application uses the power source of the same driving member to output different rotational speeds through the two output shafts of the transmission mechanism at the same time, so as to drive different roller brushes to output different rotational speeds, and then output a larger rotational speed when performing dry cleaning to achieve a better cleaning effect. When performing wet cleaning, a relatively small rotational speed is output to prevent water from being thrown out while cleaning, further improving the convenience of the cleaning operation; and it can also reduce the cost loss caused by replacing cleaning equipment. In addition, compared with the parallel arrangement, the coaxially arranged first output shaft and second output shaft of the present application reduce the overall space occupied by the multi-stage roller brush drive device and reduce the impact on the appearance of the cleaning product.

[0011] In some embodiments, the first output shaft is rotatably connected to the base frame and transmission-connected to the power input end, the first output shaft is provided with a through hole along its own axial direction, and the first output shaft has a first end away from the power input end in its own axial direction;

[0012] The second output shaft is partially inserted into the through hole and is coaxially arranged with the first output shaft. The second output shaft has a second end away from the power input end in its axial direction, and the second end protrudes from the first end.

[0013] The second rotation speed is greater than the first rotation speed.

[0014] By adopting the above technical solution, the first output shaft is sleeved on the outside of the second output shaft using a through-hole structure to realize the coaxial arrangement of the first output shaft and the second output shaft. At the same time, the second output shaft can output the second speed and the first output shaft can output the first speed to adapt to different surfaces to be cleaned and the speed requirements of the roller brush. In addition, the second end protrudes from the first end to ensure that the first output shaft and the second output shaft have reserved spaces for connecting the corresponding roller brushes respectively to avoid mutual interference.

[0015] In some embodiments, the transmission mechanism further includes a first sun gear, a first planet carrier, a second sun gear, and a second planet carrier sequentially arranged on the base frame along the axial direction of the first output shaft;

[0016] The first sun gear is connected to the driving end, and the connecting end of the first sun gear and the driving end constitutes the power input end, and the first sun gear is drivingly connected to the first planet carrier;

[0017] The second sun gear is fixedly connected to the first planet carrier, and the second sun gear is drivingly connected to the second planet carrier;

[0018] The first output shaft is fixedly connected to the second planet carrier, and the axis of the first output shaft is colinear with the rotation axis of the second planet carrier. The second output shaft passes through the second planet carrier and is coaxially fixed with the second sun gear.

[0019] By adopting the above technical solution, the driving end of the driving member is connected to the first sun gear, and the first sun gear is connected to the second output shaft via the first planetary carrier and the second sun gear, so that the second output shaft can output the second speed; the first sun gear is connected to the first output shaft via the first planetary carrier, the second sun gear and the second planetary carrier, so that the first output shaft can output the first speed, thereby realizing that the first output shaft and the second output shaft independently output different speeds to adapt to different roller brushes, surfaces to be cleaned and required cleaning speeds.

[0020] In some embodiments, the transmission mechanism further comprises:

[0021] A housing, the housing is connected to the base frame, the housing has a transmission cavity, the first output shaft is rotatably connected to the housing, a portion of the first output shaft and a portion of the second output shaft are both arranged in the transmission cavity, and an inner wall of the transmission cavity is provided with an inner gear ring around the axis of the first output shaft;

[0022] A plurality of first planetary gears, wherein the plurality of first planetary gears are respectively rotatably connected to the first planet carrier, and the plurality of first planetary gears are circumferentially arranged around a rotation center of the first sun gear, and the plurality of first planetary gears are respectively meshed with the first sun gear and the inner gear ring;

[0023] A plurality of second planetary gears are respectively rotatably connected to the second planet carrier, and the plurality of second planetary gears are circumferentially arranged around the rotation center of the second sun gear, and the plurality of second planetary gears are respectively meshed with the second sun gear and the inner gear ring.

[0024] By adopting the above technical solution, when it is necessary to drive the second output shaft to output the second speed, the driving member drives the first sun gear to rotate, and the first sun gear cooperates with the inner gear ring to drive each first planetary gear to rotate around its own axis, and at the same time each first planetary gear can revolve around the first sun gear, thereby driving the first planet carrier to rotate. At this time, the first planet carrier can directly drive the second output shaft to rotate through the second sun gear, thereby driving the second output shaft to output the second speed; when it is necessary to drive the first output shaft to output the first speed, the driving member drives the first sun gear to rotate, and the first sun gear cooperates with the inner gear ring to drive each first planetary gear to rotate around its own axis, and at the same time each first planetary gear can revolve around the first sun gear, thereby driving the first planet carrier and the second sun gear to rotate, and the second sun gear cooperates with the inner gear ring to drive each second planetary gear to rotate around itself The axis rotates, and at the same time, each second planetary gear can revolve around the second sun gear, thereby driving the second planetary carrier to rotate. At this time, the second planetary carrier can directly drive the first output shaft to rotate, thereby driving the first output shaft to output the first speed; the two-stage planetary gear transmission structure drives the first output shaft and the second output shaft to output different speeds respectively, and the planetary gear transmission structure is convenient for flexibly adjusting the transmission ratio according to the output speed requirements. At the same time, each first planetary gear and the second planetary gear can evenly share the load of the driving member transmission connecting the first output shaft and the second output shaft to meet the larger torque transmission capacity and improve the ability to adapt to the demand for higher output speeds; in addition, the planetary gear transmission structure has higher transmission stability, and the meshing structure of the planetary gear and the sun gear reduces the vibration and noise generated by the transmission, which is beneficial to reduce the noise generated during the operation of the roller brush.

[0025] In some embodiments, the transmission mechanism further includes a switching component, which is movably disposed between the first output shaft and the second output shaft, and the switching component can be respectively connected to the first roller brush and the second roller brush in a transmission manner;

[0026] The first roller brush is drivingly connected to the first output shaft through the switching assembly;

[0027] The second roller brush is drivingly connected to the second output shaft via the switching assembly.

[0028] By adopting the above technical solution, the movable switching component can be connected to the first output shaft and the second output shaft respectively. When replacing the first roller brush and the second roller brush, it is only necessary to move the switching component to connect the corresponding first output shaft and the second output shaft, and at the same time, connect the replaced first roller brush or the second roller brush to the switching component, so that the first roller brush can be correspondingly connected to the first output shaft and the second roller brush can be correspondingly connected to the second output shaft, thereby improving the convenience of replacing the first roller brush or the second roller brush.

[0029] In some embodiments, the switching assembly includes a switching part, which can be slidably mounted on the second output shaft, and at least part of the switching part is located between the first end and the second end, and the switching part is used to transmission connect the first roller brush and the first output shaft, or transmission connect the second roller brush and the second output shaft.

[0030] By adopting the above technical solution, space for the switching part to slide is reserved between the first end and the second end, and the switching part is sleeved on the second output shaft to improve the installation stability of the switching part. The second output shaft is used as a guiding structure to achieve a stable switching transmission position of the switching part, which is conducive to quickly realizing the transmission connection between the switching part and the first roller brush or the second roller brush.

[0031] In some embodiments, the transmission mechanism further includes a first pair of joints and a second pair of joints, the first pair of joints being coaxially fixedly connected to the first end, and the second pair of joints being coaxially fixedly connected to the second end;

[0032] A first docking groove for at least part of the first pair of joints to be embedded is provided on one side of the switching portion facing the first pair of joints, so as to transmission-connect the switching portion and the first pair of joints;

[0033] A second docking groove for at least partially embedding the second pair of joints is provided on one side of the switching portion facing the second pair of joints, so as to transmission-connect the switching portion and the second pair of joints.

[0034] By adopting the above technical solution, the switching part corresponds to the first pair of joints through the first docking groove, that is, the first pair of joints realizes transmission connection with the switching part by embedding into the first docking groove, thereby realizing transmission connection between the first output shaft and the switching part; similarly, the switching part corresponds to the second pair of joints through the second docking groove, that is, the second pair of joints realizes transmission connection with the switching part by embedding into the second docking groove, thereby realizing transmission connection between the second output shaft and the switching part; the first docking groove and the second docking groove improve the docking accuracy between the switching part and the first pair of joints and the second pair of joints, and the first docking groove and the second docking groove form a limiting effect on the first pair of joints and the second pair of joints, thereby improving the transmission stability of the switching part and the first output shaft and the second output shaft.

[0035] In some embodiments, the first pair of joints is provided with a plurality of first meshing teeth circumferentially around the axis of the first output shaft, and the inner groove wall of the first docking groove is provided with a plurality of first internal teeth circumferentially around the axis of the first output shaft, and when at least a portion of the first pair of joints is embedded in the first docking groove, the plurality of first meshing teeth and the plurality of first internal teeth are meshed;

[0036] And / or, the second pair of joints are provided with a plurality of second meshing teeth circumferentially around the axis of the second output shaft, the inner groove wall of the second docking groove is provided with a plurality of second internal teeth circumferentially around the axis of the second output shaft, and when at least part of the second pair of joints is embedded in the second docking groove, the plurality of second meshing teeth and the plurality of second internal teeth are meshed.

[0037] By adopting the above technical scheme, the first pair of joints are meshed with the first internal teeth in the first docking groove through the first meshing teeth arranged by themselves, and the second pair of joints are meshed with the second internal teeth in the second docking groove through the second meshing teeth arranged by themselves. On the basis of ensuring that the switching part can freely realize transmission connection with the first pair of joints or the second pair of joints along the axial direction of the second output shaft, the tooth meshing transmission structure is used to further improve the ability of the switching part and the first pair of joints and the second pair of joints to transmit larger torques, thereby improving the transmission stability of the switching part and the first pair of joints and the second pair of joints.

[0038] In some embodiments, the cross-sectional area of ​​the first pair of joints in a direction perpendicular to the axis of the first output shaft increases from an end close to the first docking groove to an end away from the first docking groove;

[0039] And / or, the area of ​​the cross section of the second pair of joints in the direction perpendicular to the axis of the second output shaft decreases from an end close to the second docking groove to an end away from the second docking groove.

[0040] By adopting the above technical scheme, the cross-sectional area of ​​the end of the first pair of joints facing the first docking groove is smaller than the cross-sectional area of ​​the end away from the first docking groove, that is, a guiding structure is preset on the first docking head, which is conducive to the first pair of joints facing the first docking groove. The end, and the first pair of joints and the first docking groove are gradually increased in the process of the first pair of joints being embedded in the first docking groove, thereby improving the docking accuracy and stability of the first pair of joints and the switching part; the cross-sectional area of ​​the end of the second pair of joints facing the second docking groove is smaller than the cross-sectional area of ​​the end away from the second docking groove, that is, a guiding structure is preset on the second docking head, which is conducive to the second pair of joints facing the second docking groove. The end, and the second pair of joints and the second docking groove are gradually increased in the process of the second pair of joints being embedded in the second docking groove, thereby improving the docking accuracy and stability of the second pair of joints and the switching part.

[0041] In some embodiments, the switching assembly further comprises an elastic member;

[0042] The elastic member connects the first pair of joints and the switching part, and when the second roller brush is connected to the switching part, the elastic member is configured to push the switching part and make the switching part connected to the second pair of joints;

[0043] Alternatively, the elastic member connects the second pair of joints and the switching portion, and when the first roller brush is connected to the switching portion, the elastic member is configured to push the switching portion and connect the switching portion to the first pair of joints.

[0044] By adopting the above technical solution, when the elastic member is arranged between the first pair of joints and the switching part, the elastic member can provide a preset force for the switching part to connect to the second pair of joints, that is, the elastic member can push the switching part to connect to the second pair of joints, so as to help maintain the transmission connection of the switching part to the second output shaft, thereby improving the stability of the transmission connection of the switching part to the second output shaft; when the elastic member is arranged between the second pair of joints and the switching part, the elastic member can provide a preset force for the switching part to connect to the first pair of joints, that is, the elastic member can push the switching part to connect to the first pair of joints, so as to help maintain the transmission connection of the switching part to the first output shaft, thereby improving the stability of the transmission connection of the switching part to the first output shaft.

[0045] In some embodiments, when the elastic member connects the first pair of joints and the switching portion, at least one of the first pair of joints and the switching portion is provided with a receiving groove toward the elastic member, and a portion of the elastic member is embedded in the receiving groove;

[0046] When the elastic member connects the second pair of joints and the switching part, at least one of the second pair of joints and the switching part is provided with a receiving groove toward the elastic member, and a portion of the elastic member is embedded in the receiving groove.

[0047] By adopting the above-mentioned technical scheme, the accommodating groove provided in at least one of the first pair of joints and the switching part is conducive to providing an installation reference for the elastic member, improving the installation stability of the elastic member, and at the same time, the accommodating groove can provide a guiding and limiting effect during the elastic deformation of the elastic member, improve the stability of the elastic member during the elastic deformation process, and reduce the problem of the elastic member interfering with other structures; similarly, the accommodating groove provided in at least one of the second pair of joints and the switching part is conducive to providing an installation reference for the elastic member, improving the installation stability of the elastic member, and at the same time, the accommodating groove can provide a guiding and limiting effect during the elastic deformation of the elastic member, improve the stability of the elastic member during the elastic deformation process, and reduce the problem of the elastic member interfering with other structures.

[0048] In some embodiments, the transmission mechanism also includes multiple connecting parts, the first output shaft and the second output shaft are respectively connected to at least one of the connecting parts, the first output shaft is detachably connected to the first roller brush through the connecting part, and the second output shaft is detachably connected to the second roller brush through the connecting part.

[0049] By adopting the above technical solution, the first output shaft and the second output shaft can be connected to at least one connecting part, and the corresponding first roller brush and second roller brush can be detachably connected through the connecting part, so as to realize the quick disassembly and assembly of the first output shaft and the second output shaft and the corresponding first roller brush and second roller brush, and different roller brushes and required cleaning speeds can be adapted without replacing different cleaning equipment, thereby improving the convenience of cleaning.

[0050] In some embodiments, the first speed is V 1 , meet: 480rpm / min≤V 1 ≤600rpm / min;

[0051] The second speed is V 2 , meet: 2300rpm / min≤V 2 ≤2600rpm / min.

[0052] By adopting the above technical solution, the first speed is set between 480rpm / min and 600rpm / min, which is different from the second speed being set between 2300rpm / min and 2600rpm / min. The first speed is more suitable for wet cleaning of the surface to be cleaned by cleaning equipment such as a floor scrubber. If the first speed is too low, the wet cleaning effect is poor. If the first speed is too high, it is easy to throw water on the surface to be cleaned, causing residual water stains, etc.; the second speed is more suitable for vacuuming the surface to be cleaned by cleaning equipment such as a floor scrubber. At this time, the surface to be cleaned can be a carpet. Using a higher speed can improve the cleaning effect on similar types of surfaces to be cleaned such as carpets.

[0053] Accordingly, a floor brush assembly described in an embodiment of the present application includes:

[0054] The floor brush base is formed with a receiving cavity;

[0055] A multi-stage roller brush driving device is arranged in the accommodating cavity, and the multi-stage roller brush driving device is connected to the floor brush base;

[0056] A first roller brush is disposed in the accommodating cavity and can rotate along the axial direction of the first roller brush; the first roller brush is drivingly connected to the first output shaft of the multi-stage roller brush driving device, so that the multi-stage roller brush driving device drives the first roller brush to rotate through the first output shaft; or,

[0057] The second roller brush is arranged in the accommodating cavity and can rotate along the axial direction of the second roller brush; the second roller brush is transmission-connected to the second output shaft of the multi-stage roller brush driving device, so that the multi-stage roller brush driving device drives the second roller brush to rotate through the second output shaft.

[0058] Wherein, the multi-stage roller brush driving device is the multi-stage roller brush driving device mentioned above.

[0059] By adopting the above technical solution, the multi-stage roller brush drive device can be installed in the floor brush base, and the floor brush assembly can be respectively adapted to install the first roller brush and the second roller brush. According to the type of the surface to be cleaned and the corresponding required rotation speed, the first roller brush or the second roller brush is selected, and the first roller brush is connected by the first output shaft to drive the first roller brush to clean the surface to be cleaned at the first rotation speed, and the second roller brush is connected by the second output shaft to drive the second roller brush to clean the surface to be cleaned at the second rotation speed. During the cleaning process, the floor brush base moves along the surface to be cleaned in a preset direction of travel, and the surface to be cleaned can be cleaned by the first roller brush or the second roller brush. It is only necessary to flexibly replace different roller brushes without replacing different cleaning equipment, thereby improving the convenience of cleaning operations.

[0060] In some embodiments, the floor brush assembly further includes a liquid pump and a liquid separator, wherein the liquid pump and the liquid separator are respectively disposed on the floor brush base, the liquid pump is configured to pump liquid to the liquid separator, and the liquid separator is used to spray liquid toward the first roller brush.

[0061] By adopting the above technical solution, when using the floor brush assembly to clean the surface to be cleaned, the liquid is pumped by the liquid pump and transported to the liquid separator, and the liquid separator sprays the liquid toward the first roller brush. At this time, the first roller brush is installed corresponding to the floor brush assembly, and the liquid separator can wet the first roller brush, thereby wet-cleaning the surface to be cleaned through the first roller brush.

[0062] In some embodiments, a first sensor is disposed on the first roller brush or the second roller brush, and a second sensor is disposed on the floor brush base. The first sensor and the second sensor can generate a sensing signal.

[0063] By adopting the above technical solution, the first sensing element and the second sensing element cooperate to generate a sensing signal, and the sensing signal can be used to quickly confirm the type of roller brush in use, which is conducive to quickly changing the cleaning type for different roller brush types.

[0064] Correspondingly, a cleaning device described in an embodiment of the present application includes a body and a floor brush assembly, and the floor brush assembly is the above-mentioned floor brush assembly; the body is rotatably connected to the floor brush assembly.

[0065] By adopting the above technical solution, when using the cleaning equipment, the floor brush assembly used can select the first roller brush or the second roller brush according to the type of the surface to be cleaned and the corresponding required rotation speed. The first roller brush is connected to the first output shaft to drive the first roller brush to clean the surface to be cleaned at a first rotation speed. The second roller brush is connected to the second output shaft to drive the second roller brush to clean the surface to be cleaned at a second rotation speed. During the cleaning process, the floor brush assembly is driven by the handheld body to move along the surface to be cleaned in a preset direction of travel, and the surface to be cleaned can be cleaned by the first roller brush or the second roller brush. It is only necessary to flexibly replace different roller brushes without replacing different cleaning equipment, thereby improving the convenience of cleaning operations.

[0066] In some embodiments, the cleaning device further comprises a control device;

[0067] The control device is in communication connection with at least one of the first induction member and the second induction member on the floor brush assembly to receive the induction signal generated by the first induction member and / or the second induction member;

[0068] The control device is communicatively connected with the liquid pump on the floor brush assembly.

[0069] By adopting the above technical solution, the control device can receive the induction signal generated by the cooperation of the first sensing element and the second sensing element, so as to quickly confirm the type of roller brush used. When it is confirmed that the floor brush assembly uses the second roller brush, the control device can control the liquid pump to stop pumping liquid, so that the second roller brush is in a suitable working environment, such as vacuuming, cleaning carpets and waiting to clean the surface; when it is confirmed that the floor brush assembly uses the first roller brush, the control device can control the liquid pump to pump liquid, so that the first roller brush is in a suitable working environment, such as wet cleaning the surface to be cleaned.

[0070] Correspondingly, a cleaning system described in an embodiment of the present application includes the above-mentioned cleaning device and also includes a base compatible with the cleaning device.

[0071] By adopting the above technical solution, when using a base station compatible with the cleaning equipment, the base station can provide the cleaning equipment with functions such as liquid supply, liquid discharge, self-cleaning, drying and charging.

[0072] Beneficial effect: When the embodiment of the present application uses a multi-stage roller brush driving device, it is possible to select a first roller brush or a second roller brush that is suitable for the material of the surface to be cleaned in advance. If the first roller brush is used, the first roller brush is installed correspondingly to the first output shaft, and power is input to the power input end of the transmission mechanism through the driving member, and the first output shaft drives the first roller brush to rotate at a first speed, so that the first roller brush cleans the surface to be cleaned at the first speed; similarly, if the second roller brush is used, the second roller brush is installed correspondingly to the second output shaft, and power is input to the power input end of the transmission mechanism through the driving member, and the second output shaft drives the second roller brush to rotate at a second speed, so that the second roller brush cleans the surface to be cleaned at the second speed; different speeds are output through the transmission mechanism by the power source of the same driving member to adapt to the working speeds required for different surfaces to be cleaned, without the need to replace different cleaning equipment, thereby improving the convenience of cleaning operations; in addition, the coaxially arranged first output shaft and second output shaft reduce the overall space occupation of the multi-stage roller brush driving device compared to the parallel arrangement, and reduce the impact on the appearance of the cleaning product. BRIEF DESCRIPTION OF THE DRAWINGS

[0073] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0074] Figure 1 It is a schematic diagram of the structure of the floor brush according to an embodiment of the present application;

[0075] Figure 2 It is a side structural schematic diagram of a multi-stage roller brush driving device according to an embodiment of the present application;

[0076] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure along line AA;

[0077] Figure 4 This is a schematic diagram of the exploded structure of a multi-stage roller brush driving device according to an embodiment of the present application;

[0078] Figure 5 is a structural schematic diagram of a multi-stage roller brush driving device according to another embodiment of the present application;

[0079] Figure 6 is a side structural schematic diagram of a multi-stage roller brush driving device according to another embodiment of the present application;

[0080] Figure 7 yes Figure 6 The schematic diagram of the cross-sectional structure along the BB line;

[0081] Figure 8is a cross-sectional structural schematic diagram of another state of a multi-stage roller brush driving device according to another embodiment of the present application;

[0082] Fig. 9 is a schematic diagram of an exploded structure of a multi-stage roller brush driving device according to another embodiment of the present application;

[0083] Figure numerals: 1, multi-stage roller brush driving device; 10, base frame; 100, main body; 101, cover; 11, transmission mechanism; 110, first output shaft; 1100, through hole; 1101, first end; 111, second output shaft; 1110, second end; 112, first planetary row; 1120, first sun gear; 1121, first planetary carrier; 1122, first planetary gear; 113, second planetary row; 1130, second sun gear; 1131, second planetary carrier; 1132, second planetary gear; 114, housing; 1140, transmission cavity; 1141, inner gear ring; 11 42. bearing; 115. switching assembly; 1150. switching part; 1151. first docking groove; 1152. second docking groove; 1153. first inner tooth; 1154. second inner tooth; 1155. elastic member; 116. first pair of joints; 1160. first meshing tooth; 117. second pair of joints; 1170. second meshing tooth; 118. accommodating groove; 119. connecting part; 12. driving member; 120. driving end; 121. fixing seat; 2. floor brush base; 20. accommodating cavity; 3. first roller brush; 30. push plate; 300. avoidance hole; 4. second roller brush; 5. fuselage. DETAILED DESCRIPTION

[0084] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0085] In the description of the present application, it should be understood that the terms "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, and at least one means one, two or more, unless otherwise clearly and specifically defined.

[0086] With the popularization of carpets and other floor coverings in homes, the demand for home cleaning is not limited to traditional floor cleaning. For surfaces of different materials to be cleaned, the cleaning equipment needs to adapt to different cleaning methods. As one of the core structures of the cleaning equipment, the roller brush also needs to be adapted to different materials.

[0087] At present, most floor scrubbers are only used for wet cleaning of floors. For carpet cleaning, the floor scrubber is usually directly replaced with a vacuum cleaner, and the carpet is cleaned by the vacuum cleaner directly using vacuum suction. When cleaning the floor, the floor scrubber is switched back to the floor scrubber. In this way, users need to switch between different cleaning equipments. Not only do they need to purchase two different cleaning equipments, which increases their equipment investment, but the users also have to switch back and forth between the two cleaning equipments, which makes daily cleaning work more troublesome.

[0088] In view of this, combined with Figures 1 to 9 , an embodiment of the present application provides a multi-stage roller brush driving device, aiming to overcome at least one of the above-mentioned technical problems.

[0089] Reference Figures 1 to 4 A multi-stage roller brush driving device 1 includes a base frame 10, a transmission mechanism 11 and a driving member 12.

[0090] It is understandable that in order to adapt to the roller brush structure and reduce space occupancy, the multi-stage roller brush driving device 1 of the embodiment of the present application is arranged inside the roller brush along the axial direction of the roller brush, that is, after the roller brush is installed, the roller brush is entirely sleeved on the outside of the multi-stage roller brush driving device 1.

[0091] The driving member 12 and the transmission mechanism 11 are arranged on the base frame 10 along the axial direction of the roller brush. The transmission mechanism 11 has a power input end, a first output shaft 110 and a second output shaft 111, the first output shaft 110 and the second output shaft 111 are coaxially arranged, the first output shaft 110 and the second output shaft 111 are respectively connected to the power input end, and the driving end 120 of the driving member 12 is connected to the power input end.

[0092] Specifically, refer to Figure 3 and Figure 4 The base frame 10 adopts a split structure, including a main body 100 with an opening at one end and a cover 101 covering the opening. In order to facilitate quick installation, the transmission mechanism 11 and the driving member 12 can be first fixed to the cover 101, and then the whole body 100 is covered.

[0093] Reference Figure 3 and Figure 4 The first output shaft 110 is provided with a through hole 1100 along its own axial direction, and has a first end 1101 away from the power input end in its own axial direction. The second output shaft 111 is partially provided through the through hole 1100 and is coaxially arranged with the first output shaft 110, and has a second end 1110 away from the power input end in its own axial direction, and the second end 1110 protrudes from the first end 1101.

[0094] The first output shaft 110 is sleeved on the outer side of the second output shaft 111 using a through hole 1100 structure to achieve coaxial arrangement of the first output shaft 110 and the second output shaft 111. The second end 1110 protrudes from the first end 1101 to ensure that the first output shaft 110 and the second output shaft 111 respectively have reserved space for connecting corresponding roller brushes to avoid mutual interference.

[0095] Corresponding to the first output shaft 110 and the second output shaft 111 of the embodiment of the present application, the embodiment of the present application introduces a first roller brush 3 and a second roller brush 4, wherein the first roller brush 3 may be a fluff brush, etc., mainly used to connect to the first output shaft 110 and used in wet cleaning operations. The second roller brush 4 may be a hard tooth brush, etc., mainly used to connect to the second output shaft 111 and used in conjunction with vacuuming operations.

[0096] Specifically, when cleaning a wooden floor or a tile to be cleaned, the first roller brush 3 can be selected to wet clean the surface to be cleaned, thereby increasing the contact area between the surface to be cleaned and the first roller brush 3 and improving the cleaning effect. When cleaning a carpet to be cleaned, the second roller brush 4 can be selected to vacuum the surface to be cleaned, thereby increasing the contact depth between the surface to be cleaned and the second roller brush 4 and improving the vacuuming effect.

[0097] The driving member 12 can be a motor, and power is output through the driving member 12 so that the first output shaft 110 can drive the first roller brush 3 to output a first speed, and the second output shaft 111 can drive the second roller brush 4 to output a second speed. The first speed is not equal to the second speed. In this embodiment, the actual second speed is greater than the first speed.

[0098] In other embodiments, the transmission mechanism 11 may also be provided with more output shafts, and corresponding roller brushes may be provided to ensure that the roller brushes operate at the corresponding operating speed.

[0099] When using the multi-stage roller brush driving device 1, the first roller brush 3 or the second roller brush 4 that is suitable for the material of the surface to be cleaned is selected. If wet cleaning of the floor is required, the first roller brush 3 is selected. At this time, the first roller brush 3 is installed correspondingly to the first output shaft 110, and power is input to the power input end of the transmission mechanism 11 through the driving member 12. The first output shaft 110 drives the first roller brush 3 to rotate at a first speed, so that the first roller brush 3 cleans the surface to be cleaned at the first speed.

[0100] Similarly, if the carpet needs to be vacuumed and cleaned, the second roller brush 4 is selected and installed correspondingly to the second output shaft 111. Power is input to the power input end of the transmission mechanism 11 through the driving member 12, and the second output shaft 111 drives the second roller brush 4 to rotate at a second speed, so that the second roller brush 4 cleans the surface to be cleaned at the second speed.

[0101] It can be understood that in order to simultaneously realize wet cleaning operations and vacuum cleaning operations, the multi-stage roller brush drive device 1 in this embodiment needs to be set on a cleaning device that can independently perform wet cleaning operations and vacuum cleaning operations. If the cleaning device adopts a floor scrubber, then during the vacuum cleaning operation, the cleaning device can stop spraying water toward the surface to be cleaned or the roller brush, and only suck the dust on the surface to be cleaned.

[0102] The power source of the same driving member 12 outputs different rotational speeds through the transmission mechanism 11 to adapt to the working rotational speeds required for different surfaces to be cleaned. There is no need to replace different cleaning equipment, thereby improving the convenience of cleaning operations. In addition, the coaxially arranged first output shaft 110 and second output shaft 111 reduce the overall space occupancy of the multi-stage roller brush drive device 1 compared to a parallel arrangement, thereby reducing the impact on the appearance of the cleaning product.

[0103] Specifically, in some embodiments, the first speed is V 1 , meet: 480rpm / min≤V 1 ≤600rpm / min.

[0104] Among them, V 1The speed may be any value between 480rpm / min and 600rpm / min; for example, the speed may be any value between 480rpm / min and 600rpm / min; for example, the speed may be any value between 480rpm / min, 485rpm / min, 490rpm / min, 495rpm / min, 500rpm / min, 505rpm / min, 510rpm / min, 515rpm / min, 520rpm / min, 525rpm / min, 530rpm / min, 535rpm / min, 540rpm / min, 545rpm / min, 550rpm / min, 555rpm / min, 560rpm / min, 565rpm / min, 570rpm / min, 575rpm / min, 580rpm / min, 585rpm / min, 590rpm / min, 595rpm / min, and 600rpm / min, or a range value consisting of any two of the values.

[0105] In some embodiments, the second speed is V 2 , meet: 2300rpm / min≤V 2 ≤2600rpm / min.

[0106] Among them, V 2The speed may be any value between 2300 rpm / min and 2600 rpm / min; for example, it may be 2300 rpm / min, 2305 rpm / min, 2310 rpm / min, 2315 rpm / min, 2320 rpm / min, 2325 rpm / min, 2330 rpm / min, 2335 rpm / min, 2340 rpm / min, 2345 rpm / min, 2350 rpm / min, 2355 rpm / min, 2360 rpm / min, 236 5rpm / min, 2370rpm / min, 2375rpm / min, 2380rpm / min, 2385rpm / min, 2390rpm / min, 2395rpm / min, 2400rpm / min, 2405r pm / min, 2410rpm / min, 2415rpm / min, 2420rpm / min, 2425rpm / min, 2430rpm / min, 2435rpm / min, 2440rpm / min, 2445rpm / min, 2450rpm / min, 2455rpm / min, 2460rpm / min, 2465rpm / min, 2470rpm / min, 2475rpm / min, 2480rpm / min, 2485rpm / mi n, 2490rpm / min, 2495rpm / min, 2500rpm / min, 2505rpm / min, 2510rpm / min, 2515rpm / min, 2520rpm / min, 2525rpm / min, 2 The speed is a range value consisting of any one of 530rpm / min, 2535rpm / min, 2540rpm / min, 2545rpm / min, 2550rpm / min, 2555rpm / min, 2560rpm / min, 2565rpm / min, 2570rpm / min, 2575rpm / min, 2580rpm / min, 2585rpm / min, 2590rpm / min, 2595rpm / min, and 2600rpm / min, or any two of them.

[0107] The first speed is set between 480rpm / min and 600rpm / min. The first speed is more suitable for wet cleaning of the surface to be cleaned by cleaning equipment such as a floor scrubber. If the first speed is too low, the wet cleaning effect is poor, and the frequency of cleaning the surface to be cleaned per unit time is low. Since the first roller brush 3 needs to be wetted before cleaning, if the first speed is too high, it is easy for the first roller brush 3 to throw water on the surface to be cleaned, resulting in residual water stains, etc.

[0108] The second speed is set between 2300rpm / min and 2600rpm / min. The second speed is more suitable for vacuuming the surface to be cleaned using cleaning equipment such as a floor scrubber. At this time, the surface to be cleaned can be a carpet. Using a higher speed can improve the cleaning effect on similar types of surfaces to be cleaned such as carpets. The second roller brush 4 can quickly brush out impurities mixed in the carpet, raise dust on the carpet, etc., to facilitate the absorption and collection of dust and other impurities.

[0109] The following mainly introduces how the transmission mechanism 11 used in the embodiment of the present application outputs different rotation speeds from the same driving member 12:

[0110] In some embodiments, reference Figure 3 , Figure 4 as well as Figure 7 , Figure 8 The transmission mechanism 11 further includes a housing 114 , a first planetary row 112 and a second planetary row 113 .

[0111] The housing 114 is disposed in the base frame 10. Specifically, the housing 114 can be fixed to the cover 101. The housing 114 has a transmission cavity 1140 and an opening toward the main body 100. The first output shaft 110 is rotatably connected to the housing 114 through a bearing 1142. Parts of the first output shaft 110 and parts of the second output shaft 111 are both inserted into the transmission cavity 1140. The inner wall of the transmission cavity 1140 is provided with an inner gear ring 1141 around the axis of the first output shaft 110. The driving member 12 is installed in the opening of the housing 114 through a fixing seat 121 and covers the opening, and the driving end 120 of the driving member 12 extends into the transmission cavity 1140. The first planetary row 112 and the second planetary row 113 are sequentially arranged in the transmission cavity 1140 along the axial direction of the first output shaft 110, and the first planetary row 112 is arranged on the side of the second planetary row 113 facing the driving member 12.

[0112] The first planet row 112 includes a first sun gear 1120 , a plurality of first planet gears 1122 , and a first planet carrier 1121 . The first sun gear 1120 and the first planet gears 1122 are respectively disposed on a side of the first planet carrier 1121 facing the driving member 12 .

[0113] The first sun gear 1120 is connected to the driving end 120, and the connection end between the first sun gear 1120 and the driving end 120 constitutes a power input end. The plurality of first planetary gears 1122 are respectively rotatably connected to the first planet carrier 1121, and the plurality of first planetary gears 1122 are arranged circumferentially around the rotation center of the first sun gear 1120, and the plurality of first planetary gears 1122 are respectively meshed with the first sun gear 1120 and the inner gear ring 1141.

[0114] The second planet row 113 includes a second sun gear 1130 , a plurality of second planet gears 1132 , and a second planet carrier 1131 . The second sun gear 1130 and the second planet gear 1132 are respectively disposed on one side of the second planet carrier 1131 facing the first planet carrier 1121 .

[0115] The second sun gear 1130 is fixedly connected to the first planet carrier 1121, and the plurality of second planetary gears 1132 are respectively rotatably connected to the second planet carrier 1131, and the plurality of second planetary gears 1132 are circumferentially arranged around the rotation center of the second sun gear 1130, and the plurality of second planetary gears 1132 are respectively meshed with the second sun gear 1130 and the inner gear ring 1141.

[0116] The first output shaft 110 is fixedly connected to the second planet carrier 1131 , and the axis of the first output shaft 110 is colinear with the rotation axis of the second planet carrier 1131 . The second output shaft 111 passes through the second planet carrier 1131 and is coaxially fixed with the second sun gear 1130 .

[0117] When it is necessary to drive the second output shaft 111 to output the second speed, the driving member 12 drives the first sun gear 1120 to rotate, and the first sun gear 1120 cooperates with the inner ring gear 1141 to drive each first planetary gear 1122 to rotate around its own axis. At the same time, each first planetary gear 1122 can revolve around the first sun gear 1120, thereby driving the first planetary carrier 1121 to rotate. At this time, the first planetary carrier 1121 can directly drive the second output shaft 111 to rotate through the second sun gear 1130, thereby driving the second output shaft 111 to output the second speed.

[0118] When the first output shaft 110 needs to be driven to output the first speed, the driving member 12 drives the first sun gear 1120 to rotate, and the first sun gear 1120 cooperates with the inner gear ring 1141 to drive each first planetary gear 1122 to rotate around its own axis, and each first planetary gear 1122 can revolve around the first sun gear 1120, thereby driving the first planet carrier 1121 and the second sun gear 1130 to rotate. The second sun gear 1130 cooperates with the inner gear ring 1141 to drive each second planetary gear 1132 to rotate around its own axis, and each second planetary gear 1132 can revolve around the second sun gear 1130, thereby driving the second planet carrier 1131 to rotate. At this time, the second planet carrier 1131 can directly drive the first output shaft 110 to rotate, thereby driving the first output shaft 110 to output the first speed.

[0119] The two-stage planetary gear transmission structure drives the first output shaft 110 and the second output shaft 111 to output different speeds respectively. The planetary gear transmission structure facilitates flexible adjustment of the transmission ratio according to the output speed requirements. At the same time, each of the first planetary gears 1122 and the second planetary gears 1132 can evenly share the load of the drive member 12 connecting the first output shaft 110 and the second output shaft 111 to meet the greater torque transmission capacity and improve the ability to adapt to the demand for higher output speeds.

[0120] In addition, it can be understood that the planetary gear transmission structure has a higher transmission stability, and the meshing structure of the planetary gear and the sun gear reduces the vibration and noise generated by the transmission, which is beneficial to reduce the noise generated during the operation of the roller brush.

[0121] In some embodiments, reference Figure 3 and Figure 4 The transmission mechanism 11 also includes a plurality of connecting parts 119, the first output shaft 110 and the second output shaft 111 are respectively connected to at least one connecting part 119, the first output shaft 110 is detachably connected to the first roller brush 3 through the connecting part 119, and the second output shaft 111 is detachably connected to the second roller brush 4 through the connecting part 119. In this embodiment, the first output shaft 110 and the second output shaft 111 are respectively fixed with a connecting part 119 as an example, the structure of the connecting part 119 is adapted to the corresponding connection structure in the first roller brush 3 and the second roller brush 4, and can be fixed in a snap-on manner, etc., which will not be described in detail here. In other embodiments, the number of connecting parts 119 on the first output shaft 110 and the second output shaft 111 can be flexibly increased according to the structure of the roller brush and the connection strength requirements.

[0122] Through each independent connection part 119, the first output shaft 110 and the second output shaft 111 and the corresponding first roller brush 3 and second roller brush 4 can be quickly disassembled and assembled, and different roller brushes and required cleaning rotation speeds can be adapted without replacing different cleaning equipment, thereby improving the convenience of cleaning.

[0123] Different from the first roller brush 3 and the second roller brush 4, which need to be connected to different connecting parts 119 to be connected to the corresponding first output shaft 110 and the second output shaft 111, in some embodiments, refer to Figures 5 to 9 The transmission mechanism 11 further includes a first pair of joints 116 and a second pair of joints 117. The first pair of joints 116 are coaxially fixedly connected to the first end 1101, and the second pair of joints 117 are coaxially fixedly connected to the second end 1110. The transmission mechanism 11 further includes a switching assembly 115. The switching assembly 115 is movably disposed between the first output shaft 110 and the second output shaft 111. The switching assembly 115 can be respectively connected to the first roller brush 3 and the second roller brush 4: the first roller brush 3 is connected to the first output shaft 110 through the switching assembly 115, and the second roller brush 4 is connected to the second output shaft 111 through the switching assembly 115.

[0124] Specifically, refer to Figures 7 to 9 The switching assembly 115 includes a switching part 1150 and an elastic member 1155. The switching part 1150 can be slidably mounted on the second output shaft 111, and at least a portion of the switching part 1150 is located between the first end 1101 and the second end 1110. The elastic member 1155 can be a spring and is mounted on the second output shaft 111, and the elastic member 1155 connects the first pair of joints 116 and the switching part 1150. The elastic member 1155 is configured to push the switching part 1150 and make the switching part 1150 transmission-connected to the second output shaft 111. That is, when the switching part 1150 is installed on the second output shaft 111, it is at least ensured that the elastic member 1155 abuts against the switching part 1150 when it is in a non-elastic deformation state and keeps the switching part 1150 connected to the second pair of joints 117.

[0125] The switching part 1150 and the first roller brush 3 and the second roller brush 4 can all adopt a tooth meshing structure. A gear ring structure is provided inside the first roller brush 3 and the second roller brush 4, and an external tooth structure is provided on the outer peripheral surface of the corresponding switching part 1150. When the first roller brush 3 or the second roller brush 4 is sleeved on the switching part 1150, the first roller brush 3 or the second roller brush 4 engages with the external tooth structure on the outer peripheral surface of the switching part 1150 through the gear ring structure to achieve a transmission connection between the two.

[0126] A first docking groove 1151 for at least partially embedding the first docking joint 116 is provided on one side of the switching part 1150 facing the first docking joint 116. The first docking joint 116 is provided with a plurality of first meshing teeth 1160 circumferentially arranged around the axis of the first output shaft 110. The inner groove wall of the first docking groove 1151 is provided with a plurality of first internal teeth 1153 circumferentially arranged around the axis of the first output shaft 110. When at least part of the first docking joint 116 is embedded in the first docking groove 1151, the plurality of first meshing teeth 1160 and the plurality of first internal teeth 1153 are meshed with each other, thereby realizing a transmission connection between the switching part 1150 and the first docking joint 116.

[0127] A second docking groove 1152 for at least partially embedding the second docking joint 117 is provided on one side of the switching part 1150 facing the second docking joint 117. The second docking joint 117 is circumferentially provided with a plurality of second meshing teeth 1170 around the axis of the second output shaft 111. The inner groove wall of the second docking groove 1152 is circumferentially provided with a plurality of second internal teeth 1154 around the axis of the second output shaft 111. When at least part of the second docking joint 117 is embedded in the second docking groove 1152, the plurality of second meshing teeth 1170 and the plurality of second internal teeth 1154 are meshed with each other, thereby realizing a transmission connection between the switching part 1150 and the second docking joint 117.

[0128] The elastic member 1155 can provide a preset force for the switching part 1150 to connect to the second pair of joints 117, which is conducive to maintaining the switching part 1150 in transmission connection with the second output shaft 111, thereby improving the stability of the switching part 1150 in transmission connection with the second output shaft 111. It can be understood that, on this basis, when the first roller brush 3 is used to connect the switching part 1150, the first roller brush 3 is preset with a push plate 30 structure that can push the switching part 1150 and compress the elastic member 1155. The push plate 30 structure is also provided with an avoidance hole 300 that can be penetrated by the second pair of joints 117 and the second output shaft 111 to avoid interference with the second pair of joints 117 and the second output shaft 111.

[0129] A space for the switching part 1150 to slide is reserved between the first end 1101 and the second end 1110. The switching part 1150 is sleeved on the second output shaft 111 to improve the installation stability of the switching part 1150. The second output shaft 111 is used as a guide structure to achieve a stable switching transmission position of the switching part 1150, which is conducive to quickly achieving a transmission connection between the switching part 1150 and the first roller brush 3 or the second roller brush 4. After the first pair of joints 116 is inserted into the first docking groove 1151, the first meshing teeth 1160 are meshed with the first internal teeth 1153 to achieve a transmission connection with the switching part 1150. After the second pair of joints 117 is inserted into the second docking groove 1152, the second meshing teeth 1170 are meshed with the second internal teeth 1154 to achieve a transmission connection with the switching part 1150. The first docking groove 1151, the second docking groove 1152 and the tooth meshing transmission structure improve the docking accuracy between the switching part 1150 and the first and second docking joints 116, 117. The first docking groove 1151 and the second docking groove 1152 form a limiting effect on the first and second docking joints 116, 117, thereby improving the transmission stability between the switching part 1150 and the first output shaft 110 and the second output shaft 111. At the same time, the tooth meshing transmission structure is beneficial to further improve the ability of the switching part 1150 and the first and second docking joints 116, 117 to transmit larger torque.

[0130] It is understandable that, in other embodiments, the elastic member 1155 may also be connected between the second pair of joints 117 and the switching portion 1150. When the corresponding first roller brush 3 is connected to the switching portion 1150, the elastic member 1155 can push the switching portion 1150 and make the switching portion 1150 transmission-connected to the first output shaft 110. This is conducive to maintaining the switching portion 1150 transmission-connected to the first output shaft 110, thereby improving the stability of the switching portion 1150 transmission-connected to the first output shaft 110.

[0131] In addition, in some embodiments, reference Figures 7 to 9The cross-sectional area of ​​the first pair of joints 116 in the direction perpendicular to the axis of the first output shaft 110 increases from the end close to the first docking groove 1151 to the end away from the first docking groove 1151. The first pair of joints 116 is provided with a guide structure, which is conducive to the first pair of joints 116 quickly inserting into the first docking groove 1151 at one end facing the first docking groove 1151, and gradually increases the matching tightness between the first pair of joints 116 and the first docking groove 1151 during the process of the first pair of joints 116 inserting into the first docking groove 1151, thereby improving the docking accuracy and stability of the first pair of joints 116 and the switching part 1150.

[0132] In some embodiments, reference Figures 7 to 9 The cross-sectional area of ​​the second pair of joints 117 in the direction perpendicular to the axis of the second output shaft 111 decreases from the end close to the second butting groove 1152 to the end away from the second butting groove 1152. The second pair of joints 117 is provided with a guide structure, which is conducive to the second pair of joints 117 quickly inserting into the second butting groove 1152 at one end toward the second butting groove 1152, and gradually increases the matching tightness between the second pair of joints 117 and the second butting groove 1152 during the process of the second pair of joints 117 inserting into the second butting groove 1152, thereby improving the butting accuracy and stability of the second pair of joints 117 and the switching part 1150.

[0133] In addition, in some embodiments, reference Figure 7 and Figure 8 At least one of the first pair of joints 116 and the switching part 1150 is provided with a receiving groove 118 toward the elastic member 1155, and a portion of the elastic member 1155 is embedded in the receiving groove 118. In this embodiment, the first pair of joints 116 is provided with the receiving groove 118 as an example. In other embodiments, the switching part 1150 or both the first pair of joints 116 and the switching part 1150 may be provided with the receiving groove 118, which will not be described in detail here.

[0134] The receiving groove 118 is helpful to provide an installation reference for the elastic member 1155, improve the installation stability of the elastic member 1155, and at the same time, the receiving groove 118 can provide a guiding and limiting function during the elastic deformation of the elastic member 1155, improve the stability of the elastic member 1155 during the elastic deformation process, and reduce the problem of the elastic member 1155 interfering with other structures.

[0135] Accordingly, a floor brush assembly according to an embodiment of the present application includes a floor brush base 2, the above-mentioned multi-stage roller brush driving device 1, and a first roller brush 3 and a second roller brush 4. The floor brush base 2 can move along the surface to be cleaned according to a preset direction of travel, and at the same time, the multi-stage roller brush driving device 1 drives the connected first roller brush 3 or the second roller brush 4 to roll and clean along the surface to be cleaned.

[0136] The floor brush base 2 has a receiving cavity 20 formed therein, and the multi-stage roller brush driving device 1 is disposed in the receiving cavity 20 and connected to the floor brush base 2. The first roller brush 3 and the second roller brush 4 can be disposed in the receiving cavity 20 and rotatably connected to the floor brush base 2. The first roller brush 3 is in transmission connection with the first output shaft 110 of the multi-stage roller brush driving device 1, so that the multi-stage roller brush driving device 1 drives the first roller brush 3 to rotate through the first output shaft 110. The second roller brush 4 is in transmission connection with the second output shaft 111 of the multi-stage roller brush driving device 1, so that the multi-stage roller brush driving device 1 drives the second roller brush 4 to rotate through the second output shaft 111.

[0137] In some embodiments, the floor brush assembly further includes a liquid pump, a liquid separator, a first sensor, and a second sensor. The liquid pump and the liquid separator are respectively arranged on the floor brush base 2, and the liquid pump is configured to pump liquid to the liquid separator, and the liquid separator is used to spray liquid toward the first roller brush 3. The first sensor can be arranged on the first roller brush 3, or on the second roller brush 4, and the second sensor is arranged on the floor brush base 2, and the first sensor and the second sensor can generate a sensing signal. It can be understood that a controller can also be installed on the floor brush base 2 to receive the sensing signal, and its induction communication principle is a prior art and will not be repeated here.

[0138] Taking the first roller brush 3 as an example, the first sensor is provided on the first roller brush 3:

[0139] When the floor brush assembly needs to wet clean the floor surface to be cleaned, the first roller brush 3 is used accordingly. At this time, the first output shaft 110 is connected to the first roller brush 3 to drive the first roller brush 3 to clean the surface to be cleaned at a first speed. The controller can receive the sensing signals generated by the first sensing element and the second sensing element. At this time, the controller can control the liquid pump to open and extract liquid to the liquid separator, so that the liquid separator sprays liquid toward the first roller brush 3, and the liquid separator can wet the first roller brush 3, so that the surface to be cleaned is wetted by the first roller brush 3.

[0140] When the floor brush assembly needs to perform only vacuuming operation on the carpet surface to be cleaned, the second roller brush 4 is used accordingly. At this time, the second output shaft 111 is connected to the second roller brush 4 to drive the second roller brush 4 to clean the surface to be cleaned at a second speed. The controller does not receive the sensing signals generated by the first sensing element and the second sensing element. At this time, the controller turns off the liquid pump, so that the second roller brush 4 can only perform the work of assisting in cleaning the surface to be cleaned during the vacuuming operation.

[0141] It is understandable that, taking the second roller brush 4 as an example, the first induction element is provided:

[0142] When the floor brush assembly needs to wet clean the floor surface to be cleaned, the first roller brush 3 is used accordingly. At this time, the first output shaft 110 is connected to the first roller brush 3 to drive the first roller brush 3 to clean the surface to be cleaned at a first speed. The controller does not receive the sensing signals generated by the first sensor and the second sensor. At this time, the controller can control the liquid pump to open and extract liquid to the liquid separator, so that the liquid separator sprays liquid toward the first roller brush 3, and the liquid separator can wet the first roller brush 3, so that the surface to be cleaned is wetted by the first roller brush 3.

[0143] When the floor brush assembly needs to perform vacuuming operation only on the surface of the carpet to be cleaned, the second roller brush 4 is used accordingly. At this time, the second output shaft 111 is connected to the second roller brush 4 to drive the second roller brush 4 to clean the surface to be cleaned at a second speed. The controller can receive the sensing signals generated by the first sensing element and the second sensing element. At this time, the controller turns off the liquid pump, so that the second roller brush 4 can only perform the work of assisting in cleaning the surface to be cleaned during the vacuuming operation.

[0144] When the floor brush assembly is used to clean the surface to be cleaned, the first sensing element and the second sensing element cooperate to generate a sensing signal, and the sensing signal can be used to quickly confirm the type of roller brush used, which is conducive to quickly changing the cleaning mode of the floor brush base 2 according to different roller brush types. Different roller brushes can be replaced quickly and flexibly, and the corresponding cleaning mode can be used without changing different cleaning equipment, thereby improving the convenience of cleaning operations.

[0145] Correspondingly, a cleaning device according to an embodiment of the present application includes a body 5 and the above-mentioned floor brush assembly, and the body 5 is rotatably connected to the floor brush assembly.

[0146] Different from the above-mentioned controller being arranged on the floor brush base 2, in some embodiments, a control device may be arranged on the cleaning device, and the control device may be arranged on the body 5. The control device is connected in communication with at least one of the first sensing element and the second sensing element on the floor brush assembly to receive the sensing signal generated by the first sensing element and / or the second sensing element. At the same time, the control device is connected in communication with the liquid pump on the floor brush assembly.

[0147] It can be understood that when using the cleaning equipment, the floor brush assembly used can select the first roller brush 3 or the second roller brush 4 according to the type of surface to be cleaned and the corresponding required rotation speed. The first roller brush 3 is connected by the first output shaft 110 to drive the first roller brush 3 to clean the surface to be cleaned at a first rotation speed. The second roller brush 4 is connected by the second output shaft 111 to drive the second roller brush 4 to clean the surface to be cleaned at a second rotation speed. The control device can receive the sensing signal generated by the cooperation of the first sensing element and the second sensing element, so as to quickly confirm the type of roller brush used. When it is confirmed that the floor brush assembly uses the second roller brush 4, the control device can control the liquid pump to stop pumping liquid, so that the second roller brush 4 is in a suitable working environment, such as vacuuming, cleaning carpets and waiting to clean the surface; when it is confirmed that the floor brush assembly uses the first roller brush 3, the control device can control the liquid pump to pump liquid, so that the first roller brush 3 is in a suitable working environment, such as wet cleaning the surface to be cleaned. During the cleaning process, the floor brush assembly is driven by the handheld body 5 to move along the surface to be cleaned in a preset direction, and the surface to be cleaned can be cleaned by the first roller brush 3 or the second roller brush 4. It only requires flexible replacement of different roller brushes without the need to replace different cleaning equipment, thereby improving the convenience of cleaning operations.

[0148] Accordingly, a cleaning system according to an embodiment of the present application includes the above-mentioned cleaning device and a base compatible with the cleaning device. It is understandable that in some embodiments, the cleaning device also includes a clean liquid tank and a dirty liquid tank, wherein the clean liquid tank is used to store the cleaning liquid source to be used, and the dirty liquid tank is used to store the dirty liquid generated after cleaning.

[0149] When a base station compatible with the cleaning device is used, the base station can provide functions for the cleaning device such as supplying liquid to the clean liquid tank, draining liquid from the dirty liquid tank, providing the first roller brush 3 and the second roller brush 4 with self-cleaning and drying, and charging the cleaning device.

[0150] The technical solution provided in the embodiments of the present application is described below in conjunction with specific embodiments.

[0151] Embodiment 1:

[0152] The multi-stage roller brush driving device 1 comprises a base frame 10 , a transmission mechanism 11 and a driving member 12 . The transmission mechanism 11 comprises a housing 114 , a first output shaft 110 , a second output shaft 111 , a first planetary gear 112 , a second planetary gear 113 and two connecting parts 119 .

[0153] The housing 114 is disposed in the base frame 10, and the housing 114 has a transmission cavity 1140 and an opening toward the main body 100. The first output shaft 110 is rotatably connected to the housing 114, and a portion of the first output shaft 110 and a portion of the second output shaft 111 are both inserted into the transmission cavity 1140, and an inner gear ring 1141 is provided on the inner wall of the transmission cavity 1140 around the axis of the first output shaft 110. The driving member 12 is mounted on the housing 114, and the driving end 120 of the driving member 12 extends into the transmission cavity 1140. The first planetary row 112 and the second planetary row 113 are sequentially arranged in the transmission cavity 1140 along the axial direction of the first output shaft 110.

[0154] The first planetary gear 112 includes a first sun gear 1120, a plurality of first planetary gears 1122, and a first planetary carrier 1121. The first sun gear 1120 and the first planetary gear 1122 are respectively arranged on the side of the first planetary carrier 1121 facing the driving member 12. The first sun gear 1120 is connected to the driving end 120, and the connecting end of the first sun gear 1120 and the driving end 120 constitutes a power input end. The plurality of first planetary gears 1122 are respectively rotatably connected to the first planetary carrier 1121, and the plurality of first planetary gears 1122 are circumferentially arranged around the rotation center of the first sun gear 1120, and the plurality of first planetary gears 1122 are respectively meshed with the first sun gear 1120 and the inner gear ring 1141.

[0155] The second planet row 113 includes a second sun gear 1130, a plurality of second planet gears 1132, and a second planet carrier 1131. The second sun gear 1130 and the second planet gear 1132 are respectively arranged on the side of the second planet carrier 1131 facing the first planet carrier 1121. The second sun gear 1130 is fixedly connected to the first planet carrier 1121, and the plurality of second planet gears 1132 are respectively rotatably connected to the second planet carrier 1131. The plurality of second planet gears 1132 are circumferentially arranged around the rotation center of the second sun gear 1130, and the plurality of second planet gears 1132 are respectively meshed with the second sun gear 1130 and the inner gear ring 1141. The first output shaft 110 is fixedly connected to the second planet carrier 1131, and the axis of the first output shaft 110 is colinear with the rotation axis of the second planet carrier 1131. The second output shaft 111 passes through the second planet carrier 1131 and is coaxially fixed with the second sun gear 1130.

[0156] The first output shaft 110 and the second output shaft 111 are respectively connected to a connecting portion 119 . The first output shaft 110 is detachably connected to the first roller brush 3 via the connecting portion 119 , and the second output shaft 111 is detachably connected to the second roller brush 4 via the connecting portion 119 .

[0157] When the surface to be cleaned needs to be wet cleaned, the first roller brush 3 is selected for use. The first roller brush 3 is connected to the connecting portion 119 to achieve transmission connection with the first output shaft 110 . At this time, when it is necessary to drive the first output shaft 110 to output the first speed, the driving member 12 drives the first sun gear 1120 to rotate, and the first sun gear 1120 cooperates with the inner ring gear 1141 to drive each first planetary gear 1122 to rotate around its own axis, and at the same time, each first planetary gear 1122 can revolve around the first sun gear 1120, thereby driving the first planetary carrier 1121 and the second sun gear 1130 to rotate, the second sun gear 1130 cooperates with the inner ring gear 1141 to drive each second planetary gear 1132 to rotate around its own axis, and at the same time, each second planetary gear 1132 can revolve around the second sun gear 1130, thereby driving the second planetary carrier 1131 to rotate, and at this time, the second planetary carrier 1131 can directly drive the first output shaft 110 to rotate, thereby driving the first output shaft 110 to output the first speed, so that the first roller brush 3 performs wet cleaning operations at the first speed.

[0158] When it is necessary to vacuum the surface to be cleaned, the second roller brush 4 is selected to be used. The second roller brush 4 is connected to the second output shaft 111 by connecting with the connecting part 119. At this time, it is necessary to drive the second output shaft 111 to output the second speed, and the driving member 12 drives the first sun gear 1120 to rotate. The first sun gear 1120 cooperates with the inner gear ring 1141 to drive each first planetary gear 1122 to rotate around its own axis. At the same time, each first planetary gear 1122 can revolve around the first sun gear 1120, thereby driving the first planet carrier 1121 to rotate. The first planet carrier 1121 can directly drive the second output shaft 111 to rotate through the second sun gear 1130, thereby driving the second output shaft 111 to output the second speed, so that the second roller brush 4 assists the vacuuming operation at the second speed.

[0159] Embodiment 2:

[0160] The multi-stage roller brush driving device 1 in this embodiment is different from the first embodiment in that two connecting parts 119 are not used, but a switching component 115 and a matching first connector and a second connector are used instead.

[0161] The first pair of joints 116 are coaxially fixedly connected to the first end 1101, and the second pair of joints 117 are coaxially fixedly connected to the second end 1110. The switching assembly 115 includes a switching portion 1150 and an elastic member 1155. The switching portion 1150 is slidably sleeved on the second output shaft 111, and at least a portion of the switching portion 1150 is located between the first end 1101 and the second end 1110. The elastic member 1155 is sleeved on the second output shaft 111 and connects the first pair of joints 116 and the switching portion 1150.

[0162] A first docking groove 1151 for at least partially embedding the first docking joint 116 is provided on one side of the switching portion 1150 facing the first docking joint 116. The first docking joint 116 is provided with a plurality of first meshing teeth 1160 circumferentially arranged around the axis of the first output shaft 110. The inner groove wall of the first docking groove 1151 is provided with a plurality of first inner teeth 1153 circumferentially arranged around the axis of the first output shaft 110.

[0163] A second docking groove 1152 for at least partially embedding the second docking joint 117 is provided on one side of the switching portion 1150 facing the second docking joint 117. The second docking joint 117 is provided with a plurality of second meshing teeth 1170 circumferentially arranged around the axis of the second output shaft 111. The inner groove wall of the second docking groove 1152 is provided with a plurality of second inner teeth 1154 circumferentially arranged around the axis of the second output shaft 111.

[0164] When the surface to be cleaned needs to be wet cleaned, the first roller brush 3 is selected for use, and the push plate 30 structure of the first roller brush 3 compresses the elastic member 1155 and connects the switching portion 1150 to the first pair of joints 116 . At this time, when it is necessary to drive the first output shaft 110 to output the first speed, the driving member 12 drives the first sun gear 1120 to rotate, and the first sun gear 1120 cooperates with the inner ring gear 1141 to drive each first planetary gear 1122 to rotate around its own axis, and at the same time, each first planetary gear 1122 can revolve around the first sun gear 1120, thereby driving the first planetary carrier 1121 and the second sun gear 1130 to rotate, the second sun gear 1130 cooperates with the inner ring gear 1141 to drive each second planetary gear 1132 to rotate around its own axis, and at the same time, each second planetary gear 1132 can revolve around the second sun gear 1130, thereby driving the second planetary carrier 1131 to rotate, and at this time, the second planetary carrier 1131 can directly drive the first output shaft 110 to rotate, thereby driving the first output shaft 110 to output the first speed, so that the first roller brush 3 performs wet cleaning operations at the first speed.

[0165] When it is necessary to vacuum the surface to be cleaned, the second roller brush 4 is selected to be used. When the second roller brush 4 is connected to the switching part 1150, the elastic member 1155 pushes the switching part 1150 to connect to the second joint 117. At this time, it is necessary to drive the second output shaft 111 to output the second speed, and the driving member 12 drives the first sun gear 1120 to rotate. The first sun gear 1120 cooperates with the inner gear ring 1141 to drive each first planetary gear 1122 to rotate around its own axis, and at the same time, each first planetary gear 1122 can revolve around the first sun gear 1120, thereby driving the first planet carrier 1121 to rotate. The first planet carrier 1121 can directly drive the second output shaft 111 to rotate through the second sun gear 1130, thereby driving the second output shaft 111 to output the second speed, so that the second roller brush 4 assists the vacuuming operation at the second speed.

[0166] Embodiment three:

[0167] The floor brush assembly can be applied to cleaning equipment such as a floor scrubber. The floor brush assembly includes a floor brush base 2, a multi-stage roller brush driving device 1 as in the first or second embodiment, and a first roller brush 3 and a second roller brush 4. The floor brush assembly also includes a liquid pump, a liquid separator, a first sensor, a second sensor, and a controller. The second sensor and the controller are provided on the floor brush base 2, and the first sensor is provided on the first roller brush 3.

[0168] The floor brush base 2 can move along the surface to be cleaned in a preset direction of travel. When the floor brush assembly needs to wet clean the floor surface to be cleaned, the first roller brush 3 is used accordingly. At this time, the first output shaft 110 is connected to the first roller brush 3 to drive the first roller brush 3 to clean the surface to be cleaned at a first speed. The controller can receive the sensing signals generated by the first sensing element and the second sensing element. At this time, the controller can control the liquid pump to open and extract liquid to transport it to the liquid separator, so that the liquid separator sprays liquid toward the first roller brush 3, and the liquid separator can wet the first roller brush 3, thereby wet-cleaning the surface to be cleaned through the first roller brush 3.

[0169] When the floor brush assembly needs to perform only vacuuming operation on the carpet surface to be cleaned, the second roller brush 4 is used accordingly. At this time, the second output shaft 111 is connected to the second roller brush 4 to drive the second roller brush 4 to clean the surface to be cleaned at a second speed. The controller does not receive the sensing signals generated by the first sensing element and the second sensing element. At this time, the controller turns off the liquid pump, so that the second roller brush 4 can only perform the work of assisting in cleaning the surface to be cleaned during the vacuuming operation.

[0170] Embodiment 4:

[0171] A cleaning device, which is a floor scrubber. It includes a body 5 and a floor brush assembly similar to that in the third embodiment, and the body 5 is rotatably connected to the floor brush assembly. It also includes a clean liquid tank and a dirty liquid tank provided on the body 5, the clean liquid tank is used to store a cleaning liquid source to be used, and the dirty liquid tank is used to store dirty liquid generated after cleaning. The difference is that a control device is provided on the body 5. The control device is communicatively connected to at least one of the first sensing element and the second sensing element on the floor brush assembly to receive the sensing signal generated by the first sensing element and / or the second sensing element. At the same time, the control device is communicatively connected to the liquid pump on the floor brush assembly.

[0172] When using the cleaning equipment, the floor brush assembly used can select the first roller brush 3 or the second roller brush 4 according to the type of surface to be cleaned and the corresponding required rotation speed. The first roller brush 3 is connected to the first output shaft 110 to drive the first roller brush 3 to clean the surface to be cleaned at a first rotation speed. The second roller brush 4 is connected to the second output shaft 111 to drive the second roller brush 4 to clean the surface to be cleaned at a second rotation speed. The control device receives the induction signal generated by the cooperation of the first sensor and the second sensor, so as to quickly confirm the type of roller brush used.

[0173] When it is confirmed that the floor brush assembly uses the second roller brush 4, the control device can control the liquid pump to stop pumping liquid, so that the second roller brush 4 is in a suitable working environment, such as vacuuming, cleaning carpets and waiting for cleaning surfaces. At this time, the sucked dust and other impurities can be collected in the dirty liquid tank.

[0174] When it is confirmed that the floor brush assembly uses the first roller brush 3, the control device can control the liquid pump to pump the liquid in the clear liquid tank, so that the first roller brush 3 is in a suitable working environment, such as wet cleaning the surface to be cleaned.

[0175] During the cleaning process, the floor brush assembly is driven by the handheld body 5 to move along the surface to be cleaned in a preset direction, and the surface to be cleaned can be cleaned by the first roller brush 3 or the second roller brush 4. It only requires flexible replacement of different roller brushes without the need to replace different cleaning equipment, thereby improving the convenience of cleaning operations.

[0176] Embodiment five:

[0177] A cleaning system includes the cleaning device of the fourth embodiment and a base compatible with the cleaning device.

[0178] Before using the cleaning device, the cleaning device can be placed in the base, and the base charges the cleaning device and replenishes the cleaning liquid source for the cleaning liquid tank.

[0179] After completing the cleaning operation, the cleaning device can be placed in the base, which charges the cleaning device. At the same time, the base can replenish the cleaning liquid source in the clean liquid tank of the cleaning device and drain the dirty liquid tank. In addition, the first roller brush 3 or the second roller brush 4 after use can be self-cleaned and dried in the base.

[0180] The above is a detailed introduction to a multi-stage roller brush drive device, a floor brush assembly, a cleaning device and a cleaning system provided in the embodiments of the present application, and specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-stage roller brush driving device (1), characterized in that: include: Base frame (10); A transmission mechanism (11), the transmission mechanism (11) being arranged on the base frame (10), the transmission mechanism (11) comprising a power input end, a first output shaft (110) and a second output shaft (111), the first output shaft (110) and the second output shaft (111) being coaxially arranged, and the first output shaft (110) and the second output shaft (111) being respectively transmission-connected to the power input end; The first output shaft (110) can drive the first roller brush (3) to output a first rotational speed, and the second output shaft (111) can drive the second roller brush (4) to output a second rotational speed, and the first rotational speed is different from the second rotational speed; A driving member (12), wherein the driving member (12) is arranged on the base frame (10), and a driving end (120) of the driving member (12) is connected to the power input end.

2. The multi-stage roller brush driving device (1) according to claim 1, characterized in that: The first output shaft (110) is rotatably connected to the base frame (10) and is transmission-connected to the power input end. The first output shaft (110) is provided with a through hole (1100) along its own axial direction. The first output shaft (110) has a first end (1101) away from the power input end in its own axial direction. The second output shaft (111) is partially inserted into the through hole (1100) and is coaxially arranged with the first output shaft (110); the second output shaft (111) has a second end (1110) away from the power input end in its axial direction, and the second end (1110) protrudes from the first end (1101); The second rotation speed is greater than the first rotation speed.

3. The multi-stage roller brush driving device (1) according to claim 2, characterized in that: The transmission mechanism (11) further comprises a first sun gear (1120), a first planet carrier (1121), a second sun gear (1130) and a second planet carrier (1131) which are sequentially arranged on the base frame (10) along the axial direction of the first output shaft (110); The first sun gear (1120) is connected to the driving end (120), and the connecting end of the first sun gear (1120) and the driving end (120) constitutes the power input end, and the first sun gear (1120) is drivingly connected to the first planet carrier (1121); The second sun gear (1130) is fixedly connected to the first planet carrier (1121), and the second sun gear (1130) is transmission-connected to the second planet carrier (1131); The first output shaft (110) is fixedly connected to the second planet carrier (1131), and the axis of the first output shaft (110) is colinear with the rotation axis of the second planet carrier (1131), and the second output shaft (111) passes through the second planet carrier (1131) and is coaxially fixed to the second sun gear (1130).

4. The multi-stage roller brush driving device (1) according to claim 3, characterized in that: The transmission mechanism (11) further comprises: a housing (114), the housing (114) being connected to the base frame (10), the housing (114) having a transmission cavity (1140), the first output shaft (110) being rotatably connected to the housing (114), a portion of the first output shaft (110) and a portion of the second output shaft (111) both being inserted into the transmission cavity (1140), and an inner toothed ring (1141) being provided on an inner wall of the transmission cavity (1140) surrounding the axis of the first output shaft (110); a plurality of first planetary gears (1122), the plurality of first planetary gears (1122) are respectively rotatably connected to the first planet carrier (1121), and the plurality of first planetary gears (1122) are circumferentially arranged around the rotation center of the first sun gear (1120), and the plurality of first planetary gears (1122) are respectively meshed with the first sun gear (1120) and the inner gear ring (1141); A plurality of second planetary teeth (1132), wherein the plurality of second planetary teeth (1132) are respectively rotatably connected to the second planet carrier (1131), and the plurality of second planetary teeth (1132) are circumferentially arranged around the rotation center of the second sun gear (1130), and the plurality of second planetary teeth (1132) are respectively meshed with the second sun gear (1130) and the inner gear ring (1141).

5. The multi-stage roller brush driving device (1) according to any one of claims 2 to 4, characterized in that: The transmission mechanism (11) further comprises a switching component (115), wherein the switching component (115) is movably arranged between the first output shaft (110) and the second output shaft (111), and the switching component (115) can be respectively connected to the first roller brush (3) and the second roller brush (4) in a transmission manner; The first roller brush (3) is transmission-connected to the first output shaft (110) via the switching assembly (115); The second roller brush (4) is transmission-connected to the second output shaft (111) via the switching assembly (115).

6. The multi-stage roller brush driving device (1) according to claim 5, characterized in that: The switching assembly (115) comprises a switching part (1150), and the switching part (1150) can be slidably mounted on the second output shaft (111), and at least a part of the switching part (1150) is located between the first end (1101) and the second end (1110), and the switching part (1150) is used to drive the connection between the first roller brush (3) and the first output shaft (110), or to drive the connection between the second roller brush (4) and the second output shaft (111).

7. The multi-stage roller brush driving device (1) according to claim 6, characterized in that: The transmission mechanism (11) further comprises a first pair of joints (116) and a second pair of joints (117), wherein the first pair of joints (116) are coaxially fixedly connected to the first end (1101), and the second pair of joints (117) are coaxially fixedly connected to the second end (1110); A first docking groove (1151) for at least partially embedding the first pair of joints (116) is provided on one side of the switching portion (1150) facing the first pair of joints (116), so as to transmission-connect the switching portion (1150) and the first pair of joints (116); A second docking groove (1152) for at least partially embedding the second pair of joints (117) is provided on one side of the switching portion (1150) facing the second pair of joints (117), so as to transmission-connect the switching portion (1150) and the second pair of joints (117).

8. The multi-stage roller brush driving device (1) according to claim 7, characterized in that: The first pair of joints (116) is provided with a plurality of first meshing teeth (1160) in a circumferential direction around the axis of the first output shaft (110); the inner groove wall of the first docking groove (1151) is provided with a plurality of first internal teeth (1153) in a circumferential direction around the axis of the first output shaft (110); when at least part of the first pair of joints (116) is embedded in the first docking groove (1151), the plurality of first meshing teeth (1160) and the plurality of first internal teeth (1153) are meshed; And / or, the second pair of joints (117) are provided with a plurality of second meshing teeth (1170) circumferentially around the axis of the second output shaft (111), and the inner groove wall of the second docking groove (1152) is provided with a plurality of second internal teeth (1154) circumferentially around the axis of the second output shaft (111), and when at least part of the second pair of joints (117) is embedded in the second docking groove (1152), the plurality of second meshing teeth (1170) and the plurality of second internal teeth (1154) are meshed.

9. The multi-stage roller brush driving device (1) according to claim 8, characterized in that: The cross-sectional area of ​​the first pair of joints (116) in a direction perpendicular to the axis of the first output shaft (110) increases gradually from an end close to the first docking groove (1151) to an end away from the first docking groove (1151); And / or, the area of ​​the cross section of the second joint (117) in a direction perpendicular to the axis of the second output shaft (111) decreases from an end close to the second docking groove (1152) to an end away from the second docking groove (1152).

10. The multi-stage roller brush driving device (1) according to claim 7, characterized in that: The switching assembly (115) further includes an elastic member (1155); The elastic member (1155) connects the first pair of joints (116) and the switching portion (1150); when the second roller brush (4) is connected to the switching portion (1150), the elastic member (1155) is configured to push the switching portion (1150) and enable the switching portion (1150) to connect to the second pair of joints (117); Alternatively, the elastic member (1155) connects the second pair of joints (117) and the switching portion (1150), and when the first roller brush (3) is connected to the switching portion (1150), the elastic member (1155) is configured to be able to push the switching portion (1150) and enable the switching portion (1150) to connect to the first pair of joints (116).

11. The multi-stage roller brush driving device (1) according to claim 10, characterized in that: When the elastic member (1155) is connected to the first pair of joints (116) and the switching portion (1150), at least one of the first pair of joints (116) and the switching portion (1150) is provided with a receiving groove (118) toward the elastic member (1155), and a portion of the elastic member (1155) is embedded in the receiving groove (118); When the elastic member (1155) is connected to the second pair of joints (117) and the switching portion (1150), at least one of the second pair of joints (117) and the switching portion (1150) is provided with a receiving groove (118) toward the elastic member (1155), and a portion of the elastic member (1155) is embedded in the receiving groove (118).

12. The multi-stage roller brush driving device (1) according to any one of claims 1 to 4, characterized in that: The transmission mechanism (11) further comprises a plurality of connecting parts (119), the first output shaft (110) and the second output shaft (111) being respectively connected to at least one of the connecting parts (119), the first output shaft (110) being detachably connected to the first roller brush (3) via the connecting part (119), and the second output shaft (111) being detachably connected to the second roller brush (4) via the connecting part (119).

13. The multi-stage roller brush driving device (1) according to any one of claims 1 to 4, characterized in that: The first speed is V1, which satisfies: 480 rpm / min≤V1≤600 rpm / min; The second rotation speed is V2, which satisfies: 2300rpm / min≤V2≤2600rpm / min.

14. A floor brush assembly, characterized in that: include: A floor brush base (2) is formed with a receiving cavity (20); A multi-stage roller brush driving device (1) is arranged in the accommodating cavity (20), and the multi-stage roller brush driving device (1) is connected to the floor brush base (2); The first roller brush (3) is arranged in the accommodating cavity (20) and can rotate along the axial direction of the first roller brush (3); the first roller brush (3) is drivingly connected to the first output shaft (110) of the multi-stage roller brush driving device (1), so that the multi-stage roller brush driving device (1) drives the first roller brush (3) to rotate through the first output shaft (110); or, A second roller brush (4) is arranged in the accommodating cavity (20) and can rotate along the axial direction of the second roller brush (4); the second roller brush (4) is transmission-connected to the second output shaft (111) of the multi-stage roller brush driving device (1), so that the multi-stage roller brush driving device (1) drives the second roller brush (4) to rotate via the second output shaft (111); Wherein, the multi-stage roller brush driving device (1) is the multi-stage roller brush driving device (1) according to any one of claims 1 to 13.

15. The floor brush assembly according to claim 14, characterized in that: It also comprises a liquid pump and a liquid separator, wherein the liquid pump and the liquid separator are respectively arranged on the floor brush base (2), the liquid pump is configured to be able to pump liquid to the liquid separator, and the liquid separator is used to spray liquid toward the first roller brush (3).

16. The floor brush assembly according to claim 15, characterized in that: The first roller brush (3) or the second roller brush (4) is provided with a first induction element, and the floor brush base (2) is provided with a second induction element. The first induction element and the second induction element are capable of generating induction signals.

17. A cleaning device, characterized in that: It comprises a body (5) and a floor brush assembly, wherein the floor brush assembly is the floor brush assembly described in any one of claims 14 to 16; the body (5) is rotatably connected to the floor brush assembly.

18. The cleaning device according to claim 17, characterized in that Also includes a control device; The control device is in communication connection with at least one of the first induction member and the second induction member on the floor brush assembly to receive the induction signal generated by the first induction member and / or the second induction member; The control device is communicatively connected with the liquid pump on the floor brush assembly.

19. A cleaning system, characterized in that: The cleaning device comprises the cleaning device as claimed in claim 17 or 18, and further comprises a base adapted to the cleaning device.

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