Rolling brush assembly, cleaning device and cleaning system

Abstract

Provided in the embodiments of the present disclosure are a rolling brush assembly, a cleaning device and a cleaning system. The rolling brush assembly comprises: a rolling brush body; a driving assembly, wherein the driving assembly comprises a first output shaft and a second output shaft which are coaxially arranged, and the first output shaft and the second output shaft are each in transmission connection with the rolling brush body; and a drive motor, the first output shaft and the second output shaft being each in transmission connection with the drive motor, wherein the rotational speed ratio between the first output shaft and the second output shaft is within a range of 1:(0.11-0.5) or 1:(2-9), and the rotational speed ratio between the first output shaft and the drive motor is within a range of 1:(0.11-0.5) or 1:(2-9).

Description

Roller brush assembly, cleaning equipment and cleaning system

[0001] This application claims priority to Chinese Patent Application No. 202422899627.7, filed on November 26, 2024, entitled “Roller Brush Assembly, Cleaning Equipment and Cleaning System”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of cleaning equipment technology, and more specifically, to a roller brush assembly, cleaning equipment, and cleaning system. Background Technology

[0003] The widespread availability of cleaning equipment has made people's lives more convenient. Existing cleaning equipment includes, but is not limited to, vacuum cleaners, robotic vacuum cleaners, and floor scrubbers. These devices clean floors mechanically or in combination with chemical methods to maintain a clean and hygienic environment. Existing cleaning equipment includes dry cleaning and wet cleaning structures for sweeping or mopping floors.

[0004] Existing cleaning equipment, such as floor scrubbers, typically clean floors by adding water to a roller brush. This type of wet cleaning equipment cannot be fitted with a dry roller brush for cleaning carpets. Even floor scrubbers that can handle carpet cleaning require specialized brush head assemblies, which are often complex in structure, significantly increasing both the user's time cost and the manufacturing cost of the floor scrubber. (Application Content)

[0005] The purpose of this disclosure is to address the technical problems in the related art by providing a roller brush assembly, cleaning equipment, and cleaning system to solve at least one of the aforementioned technical problems. The specific solution is as follows:

[0006] This application provides a roller brush assembly, including:

[0007] Roller brush body;

[0008] A drive assembly, comprising a first output shaft and a second output shaft coaxially arranged, wherein the first output shaft and the second output shaft are respectively connected to the brush body for transmission.

[0009] A drive motor, wherein the first output shaft and the second output shaft are respectively connected to the drive motor for transmission, wherein...

[0010] The ratio of the rotational speed of the first output shaft to that of the second output shaft is in the range of 1:(0.11~0.5) or 1:(2~9), and the ratio of the rotational speed of the first output shaft to that of the drive motor is in the range of 1:(0.11~0.5) or 1:(2~9).

[0011] In some embodiments, the drive assembly includes a first planetary gear train and a second planetary gear train, the first planetary gear train and the second planetary gear train being sequentially connected to the drive motor, the first output shaft being driven by the first planetary gear train or the second planetary gear train, and the second output shaft being driven by the second planetary gear train.

[0012] In some embodiments, the drive assembly includes a first planetary gear train and a second planetary gear train, wherein...

[0013] The first planetary gear system includes: a first sun gear, a plurality of first planet gears, and a first planet carrier configured as a first transmission end, which are sequentially driven and axially arranged and connected to the drive motor; or, a first planet carrier, a plurality of first planet gears, and a first sun gear configured as a first transmission end, which are sequentially driven and axially arranged and connected to the drive motor.

[0014] The second planetary gear system includes: a second sun gear, a second planet gear, and a second planet carrier, which are sequentially driven and axially arranged and fixedly connected to the first transmission end and configured as the second transmission end; or, a second planet carrier, a second planet gear, and a second sun gear, which are sequentially driven and axially arranged and fixedly connected to the first transmission end and configured as the second transmission end.

[0015] In some embodiments, the second output shaft is fixedly connected to the third transmission end, and both the second output shaft and the third transmission end are provided with through holes along the axial direction. The first output shaft passes through the through holes and is fixedly connected to the second transmission end.

[0016] The second output shaft is fixedly connected to the third transmission end. The second output shaft, the third transmission end, and the second transmission end are provided with through holes along the axial direction. The first output shaft passes through the through holes and is fixedly connected to the first transmission end.

[0017] In some embodiments, the drive assembly includes a gear ring that meshes with a first planetary gear and a second planetary gear.

[0018] In some embodiments, the drive assembly further includes a first output terminal configured to drive the first output shaft to the brush body, wherein the first output terminal is coaxial with the first output shaft and is disposed at the end of the first output shaft away from the drive motor;

[0019] The drive assembly further includes a second output end, configured to drive the second output shaft to the brush body. The second output end has a through hole along the axial direction, the second output end is coaxial with the second output shaft, and the second output end is located at the end of the second output shaft away from the drive motor.

[0020] In some embodiments, the first output terminal and the second output terminal respectively engage with the brush body.

[0021] In some embodiments, the driver component further includes:

[0022] A switching element engages with the brush body, and the switching element engages with either the first output end or the second output end.

[0023] In some embodiments, the switching element is disposed between the first output terminal and the second output terminal, and the switching element is movably sleeved on the first output shaft.

[0024] In some embodiments, the switching element has external teeth, the brush body has internal teeth, and the external teeth mesh with the internal teeth.

[0025] In some embodiments, the driver component further includes:

[0026] An elastic element is configured to engage the switching element with the brush body in a first position or a second position, and the elastic element is disposed between the second output end and the switching element;

[0027] In the first position, the switching element is engaged with the first output shaft, and in the second position, the switching element is engaged with the second output shaft.

[0028] In some embodiments, the switching element further includes a first engagement groove and a second engagement groove, the first engagement groove being configured to engage with the first output terminal at the first position, and the second engagement groove being configured to engage with the second output terminal at the second position.

[0029] In some embodiments, the surface of the roller brush body is provided with flexible brush elements and / or rigid brush elements, and / or, the roller brush body includes a sensing element.

[0030] In some embodiments, the surface of the roller brush body is provided with flexible brush members and rigid brush members, wherein the flexible brush members and the rigid brush members are disposed on the surface of the roller brush body, or the flexible brush members are disposed on the surface of the roller brush body and the rigid brush members are disposed inside the roller brush body.

[0031] This disclosure provides a cleaning device including a roller brush assembly as described in any of the preceding claims, the roller brush assembly being mounted on the cleaning device for surface cleaning.

[0032] This disclosure provides a cleaning system, including the cleaning equipment described above and a base station that works in conjunction with it.

[0033] Compared with related technologies, the above-described solutions of this disclosure have at least the following beneficial effects:

[0034] The roller brush assembly of the cleaning device disclosed herein utilizes various transmission configurations, such as a first output shaft and a second output shaft connected to the roller brush body in the drive assembly (i.e., various transmission configurations of a first-stage planetary gear system and a second-stage planetary gear system), to allow the ratio of the rotational speeds of the first and second output shafts to be in the range of 1:(0.11–0.5) or 1:(2–9), and the ratio of the rotational speeds of the first output shaft and the drive motor to be in the range of 1:(0.11–0.5) or 1:(2–9). This allows for flexible selection of the output rotational speed of the roller brush assembly based on the surface conditions to be cleaned and / or the conditions of other components within the cleaning device. Furthermore, the connection method can be switched according to different cleaning tasks. When wet cleaning is required, the roller brush body is connected to either the first or second output shaft to perform wet cleaning at a preset rotational speed. When dry cleaning is required, the roller brush body is connected to either the first or second output shaft to increase the rotational speed and perform dry cleaning at a preset rotational speed. This allows the roller brush assembly to be used for both dry and wet cleaning with two sets of roller brushes. The roller brushes can be replaced quickly and easily, and the cost of the roller brush assembly can be saved, thus improving the user experience.

[0035] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0036] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure. It is obvious that the drawings described below are merely some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings:

[0037] Figure 1 is a schematic diagram of the overall structure of a floor brush for a cleaning device according to an exemplary embodiment.

[0038] Figure 2 is a schematic diagram of the overall structure of a roller brush assembly according to an exemplary embodiment.

[0039] Figure 3 is a schematic diagram of the split structure of a roller brush assembly according to an exemplary embodiment.

[0040] Figure 4 is an exploded view of the drive assembly according to an exemplary embodiment.

[0041] Figure 5 is an exploded structural diagram of a drive component according to another exemplary embodiment.

[0042] Figure 6 is a schematic diagram of the gear ring structure according to an exemplary embodiment.

[0043] Figure 7 is an exploded view of the drive assembly according to yet another exemplary embodiment.

[0044] Figure 8 is a schematic cross-sectional view of a roller brush assembly according to an exemplary embodiment.

[0045] Figure 9 is a schematic cross-sectional view of a roller brush assembly according to another exemplary embodiment.

[0046] Figure label:

[0047] The cleaning equipment includes a floor brush 1000, a base 100, a housing 200, a roller brush assembly 300, a roller brush fixing component 312, a roller brush body 311, a drive assembly 320, a drive assembly fixing component 322, a drive housing 3211, an end cap 32110, a drive motor 3210, a first planetary gear system 330, a first sun gear 3213, a first planetary gear 3214, a first planetary carrier 3215, a second planetary gear system 340, a second sun gear 3216, a second planetary gear 3217, a second planetary carrier 3218, a gear ring 3212, a first output end 32113, a first output shaft 32112, a second output end 32111, a second output shaft 3219, a switching element 350, a first meshing groove 351, a second meshing groove 352, an elastic element 360, an assembly structure 370, and a roller 400. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this disclosure clearer, the disclosure will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this disclosure, and not all of them. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0049] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the disclosure. The singular forms “a,” “the,” and “the” as used in the embodiments of this disclosure and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise; “multiple” generally includes at least two, and other quantifiers are similarly intended.

[0050] It should be understood that although the terms first, second, third, etc., may be used to describe embodiments of this disclosure, these descriptions should not be limited to these terms. These terms are only used to distinguish the described objects. For example, first may also be referred to as second without departing from the scope of embodiments of this disclosure, and similarly, second may also be referred to as first. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0052] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or device. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or device that includes said element.

[0053] The optional embodiments of this disclosure are described in detail below with reference to the accompanying drawings.

[0054] To more clearly describe the behavior of the cleaning equipment, as shown in Figure 1, the following directional definitions are made: The floor brush of the cleaning equipment can be calibrated using the following three mutually perpendicular axes: the horizontal axis Y, the front-to-back axis X, and the central vertical axis Z. The direction along the arrow on the front-to-back axis X is labeled "backward," and the direction opposite to the arrow on the front-to-back axis X is labeled "forward." The direction along the arrow on the horizontal axis Y is the "right side" of the floor brush, and the direction opposite to the arrow on the horizontal axis Y is the "left side" of the floor brush. The vertical axis Z extends upward along the bottom surface of the floor brush; the direction along the arrow on the vertical axis Z is the "top side" of the floor brush, and the direction opposite to the arrow on the vertical axis Z is the "bottom side" of the cleaning equipment.

[0055] As shown in Figure 1, this application embodiment provides a floor cleaning device brush 1000. The cleaning device, such as a floor scrubber, is used to clean surfaces (e.g., floors, walls, and countertops) manually or automatically. The floor cleaning device brush 1000 includes a base 100, a housing 200, a roller brush assembly 300, and rollers 400. The rollers 400 are disposed on the base 100, and the housing 200 is fastened to the base 100. The roller brush assembly 300 is detachably disposed on either the base 100 or the housing 200. The roller brush assembly 300 can be a wet or dry structure. In a dry structure, the roller brush rotates to sweep away dirt from the surface to be cleaned. In a wet structure, additional water is sprayed onto the roller brush to achieve wet cleaning of the surface.

[0056] Specifically, as shown in Figures 2 and 3, Figure 2 is an overall structural diagram of the roller brush assembly 300, and Figure 3 is a split structural diagram of the roller brush assembly 300. The roller brush assembly 300 includes a roller brush body 311, a roller brush fixing member 312, a drive assembly 320, and a drive assembly fixing member 322. Surface cleaning is performed by inserting the drive assembly 320 into the roller brush body 311 and driving the roller brush body 311 to rotate. The roller brush fixing member 312 is detachably connected to the base 100 or housing 200 shown in Figure 1. The roller brush body 311 can be a dry and / or wet structure, performing surface cleaning through rotation. The drive assembly fixing member 322 is detachably connected to the base 100 or housing 200 shown in Figure 1.

[0057] In some embodiments, as shown in Figures 4 and 5, the drive assembly 320 includes a drive housing 3211 and an end cover 32110, and a drive motor 3210, a first planetary gear train 330, a second planetary gear train 340, a gear ring 3212 disposed within the drive housing 3211, and a first output shaft 32112 and a second output shaft 3219 that at least partially pass through the end cover 32110 and are disposed outside the drive housing 3211. The first output shaft 32112 and the second output shaft 3219 are coaxially arranged. The drive motor 3210 is connected to the first output shaft 32112 and the second output shaft 3219 respectively. Specifically, the drive assembly 320 inputs driving force through the drive motor 3210. The first planetary gear system 330 is connected to the drive motor 3210, and the second planetary gear system 340 is connected to the first planetary gear system 330. The first output shaft 32112 and the second output shaft 3219 are connected to the second planetary gear system 340 respectively. The first output shaft 32112 outputs a driving force at a first speed, and the second output shaft 3219 outputs a driving force at a second speed. The first speed and the second speed are different. Optionally, the first speed is greater than the second speed, or the first speed is less than the second speed. Optionally, the ratio of the speeds of the first output shaft 32112 and the second output shaft 3219 is in the range of 1:(0.11 to 0.5) or 1:(2 to 9) (excluding the endpoints 0.5 and 2, the endpoint 0.11 can be equivalent to 1 / 9). Based on the range of the above-mentioned speed ratio, the speed ratio of the first output shafts 32112 and 3219 can be configured according to the actual driving needs, so as to meet the speed required by the roller brush body 311 to perform different cleaning tasks and improve the cleaning effect.

[0058] In some embodiments, as shown in FIG4, the first planetary gear system 330 includes a first sun gear 3213, a plurality of first planetary gears 3214, and a first planetary carrier 3215 configured as a first transmission end. The first sun gear 3213, the plurality of first planetary gears 3214, and the first planetary carrier 3215 are sequentially driven and arranged axially, and are all connected to the drive motor 3210. Specifically, the first sun gear 3213 and the first planetary gears 3214 are located on the side of the first planetary carrier 3215 near the drive motor 3210. The shaft of the drive motor 3210 is rotatably connected to the first sun gear 3213 of the first planetary gear system 330. The plurality of first planetary gears 3214 are connected to the first planetary carrier 3215. For example, there are at least three first planetary gears 3214. The first sun gear 3213 meshes with the plurality of first planetary gears 3214. The plurality of first planetary gears 3214 rotate synchronously under the drive of the first sun gear 3213, and drive the first planetary carrier 3215 to rotate synchronously. The speed ratio between the first sun gear 3213 and the first planetary gear 3214 is adjusted by setting the gear ratio of the first sun gear 3213 and the first planetary carrier 3215. Furthermore, in this transmission configuration, the speed ratio between the first sun gear 3213 and the first planetary carrier 3215 is greater than 1, for example, 1:(0.11 to 0.5) (excluding the endpoint 0.5; the endpoint 0.11 can be equivalent to 1 / 9). That is, the first planetary gear system 330 is in a deceleration transmission state, with the speed at the first transmission end being less than the speed of the drive motor 3210, and the torque at the first transmission end being greater than the torque of the drive motor 3210. When the first planetary gear system 330 is in deceleration motion, the speed at which the drive motor 3210 transmits power to the first output shaft 32112 is reduced, and the torque is increased, so that the speed of the first output shaft 32112 when driving the brush body 311 conforms to the preset working state.

[0059] In some embodiments, as shown in FIG4, the second planetary gear system 340 includes a second sun gear 3216, a plurality of second planetary gears 3217 and a second planetary carrier 3218. The second sun gear 3216, the plurality of second planetary gears 3217 and the second planetary carrier 3218 are sequentially driven and arranged along the axial direction. The second sun gear 3216 is fixedly connected to the first transmission end and is configured as the second transmission end, and the second planetary carrier 3218 is configured as the third transmission end. Specifically, the second sun gear 3216 and a plurality of second planetary gears 3217 are located on the side of the second planetary carrier 3218 near the first planetary gear train 330. The second sun gear 3216 is fixedly connected to the first planetary carrier 3215 and rotates synchronously with the rotation of the first planetary carrier 3215. The plurality of second planetary gears 3217 are drively connected to the second planetary carrier 3218. For example, there are at least three second planetary gears 3217. The plurality of second planetary gears 3217 mesh with the second sun gear 3216 and rotate synchronously under the drive of the second sun gear 3216, thereby driving the second planetary carrier 3218 to rotate. The speed ratio between the second sun gear 3216 and the second planetary gears 3217 is adjusted by setting the gear ratio of the second sun gear 3216 and the second planetary gears 3217. Furthermore, in this transmission configuration, the speed ratio between the second sun gear 3216 and the second planetary carrier 3218 is greater than 1, for example, 1:(0.11 to 0.5) (excluding the endpoint 0.5, the endpoint 0.11 can be equivalent to 1 / 9). That is, the second planetary gear system 340 is in a deceleration transmission state under this transmission condition, the speed of the third transmission end is less than the speed of the second transmission end, and the torque of the third transmission end is greater than the torque of the second transmission end. When the second planetary gear system 340 is in deceleration motion, the rotational speed of the drive motor 3210 transmitted to the second output shaft 3219 can be reduced, and the torque can be increased, so that the speed of the second output shaft 3219 when driving the brush body 311 meets the preset working state.

[0060] In some embodiments, as shown in FIG5, the first planetary gear system 330 includes a first planet carrier 3215, a plurality of first planetary gears 3214, and a first sun gear 3213 configured as a first transmission end. The first planet carrier 3215, the plurality of first planetary gears 3214, and the first sun gear 3213 are sequentially driven and arranged axially, and are all connected to the drive motor 3210. Specifically, the first sun gear 3213 and the first planetary gears 3214 are located on the side of the first planet carrier 3215 away from the drive motor 3210. The shaft of the drive motor 3210 is connected to the first planet carrier 3215 of the first planetary gear system 330. The first planet carrier 3215 drives the plurality of first planetary gears 3214 to rotate synchronously. The plurality of first planetary gears 3214 mesh with the first sun gear 3213 and drive the first sun gear 3213 to rotate. The speed ratio between the first sun gear 3213 and the first planetary gears 3214 is adjusted by setting the gear ratio of the first sun gear 3213 and the first planetary gears 3214. Furthermore, in this transmission configuration, the ratio of the rotational speed of the first planetary carrier 3215 to the rotational speed of the first sun gear 3213 is less than 1, for example, 1:(2 to 9) (excluding endpoint 2). That is, the first planetary gear system 330 is in an accelerating transmission state under this transmission condition, with the rotational speed of the first transmission end being greater than the rotational speed of the drive motor 3210, and the torque of the first transmission end being less than the torque of the drive motor 3210. When the first planetary gear system 330 is in an accelerating motion, the rotational speed of the drive motor 3210 transmitted to the first output shaft 32112 can be increased, and the torque can be reduced, so that the rotational speed of the first output shaft 32112 when driving the brush body 311 meets the preset working state.

[0061] In some embodiments, as shown in FIG5, the second planetary gear system 340 includes a second planetary carrier 3218, a plurality of second planetary gears 3217, and a second sun gear 3216. The second planetary carrier 3218, the plurality of second planetary gears 3217, and the second sun gear 3216 are sequentially driven and arranged axially. The second planetary carrier 3218 is fixedly connected to a first transmission end, and the second planetary carrier 3218 is configured as a second transmission end, while the second sun gear 3216 is configured as a third transmission end. Specifically, the plurality of second planetary gears 3217 and the second sun gear 3216 are located on the side of the second planetary carrier 3218 away from the drive motor 3210. The first sun gear 3213 is drivenly connected to the second planetary carrier 3218. The second planetary carrier 3218 rotates under the drive of the first sun gear 3213, which in turn drives the plurality of second planetary gears 3217 to rotate. The plurality of second planetary gears 3217 mesh with the second sun gear 3216 and drive the second sun gear 3216 to rotate. The speed ratio between the second sun gear 3216 and the second planetary gear 3217 is adjusted by setting the gear ratio of the second sun gear 3216. In this transmission mode, the speed ratio of the second planetary carrier 3218 to the second sun gear 3216 is less than 1, for example, 1:(2 to 9) (excluding endpoint 2). That is, the second planetary gear system 340 is in acceleration transmission under this transmission state, the speed of the third transmission end is greater than the speed of the second transmission end, and the torque of the third transmission end is less than the torque of the second transmission end.

[0062] In some embodiments, as shown in FIG4, both the first planetary gear train 330 and the second planetary gear train 340 are in a deceleration transmission; in other embodiments, as shown in FIG5, both the first planetary gear train 330 and the second planetary gear train 340 are in an acceleration transmission; in embodiments not shown, the first planetary gear train 330 is in a deceleration transmission and the second planetary gear train 340 is in an acceleration transmission. Specifically, the first planetary gear train 330 includes a first sun gear 3213, a plurality of first planetary gears 3214, and a first planet carrier 3215 configured as a first transmission end, which are sequentially driven and axially arranged and connected to the drive motor 3210; the second planetary gear train 340 includes a second planetary gear, which is sequentially driven and axially arranged and fixedly connected to the first transmission end and configured as a second transmission end. The first planetary gear system 330 comprises a carrier 3218, multiple second planetary gears 3217, and a second sun gear 3216 configured as a third transmission end; or, in other embodiments not shown, the first planetary gear system 330 is in acceleration transmission, and the second planetary gear system 340 is in deceleration transmission. Specifically, the first planetary gear system 330 includes a first planetary carrier 3215, multiple first planetary gears 3214, and a first sun gear 3213 configured as a first transmission end, which are sequentially driven and axially arranged and connected to the drive motor 3210. The second planetary gear system 340 includes a second sun gear 3216, multiple second planetary gears 3217, and a second planetary carrier 3218 configured as a third transmission end, which are sequentially driven and axially arranged and fixedly connected to the first transmission end. The technical solution of this disclosure allows for the configuration of the speed ratio of the first planetary gear system 330 and the combination of acceleration and deceleration according to the parameters of the actual drive motor 3210 and the needs of cleaning different surfaces, thereby meeting different cleaning tasks of the roller brush body and improving the cleaning effect.

[0063] In some embodiments, the drive assembly 320 includes a gear ring 3212, as shown in FIG6. The gear ring 3212 is fixedly disposed within the drive housing 3211 and meshes with the first planetary gear system 330 and the second planetary gear system 340. A plurality of first planetary gears 3214 and a plurality of second planetary gears 3217 are located within the gear ring 3212. The plurality of first planetary gears 3214 and the plurality of second planetary gears 3217 share the same gear ring 3212 and mesh with it for rotation. The drive housing 3211 is fixedly disposed within the drive assembly fixing member 322. Therefore, when the plurality of first planetary gears 3214 and the plurality of second planetary gears 3217 mesh with and rotate with the gear ring 3212, the gear ring 3212 does not rotate; that is, the gear ring 3212 remains stationary relative to the drive assembly fixing member 322.

[0064] In some embodiments, as shown in Figures 4 and 5, the first output shaft 32112 includes a first output end 32113, which is coaxially disposed at the end of the first output shaft 32112 away from the drive motor 3210. The second output shaft 3219 includes a second output end 32111, which is coaxially disposed at the end of the second output shaft 3219 away from the drive motor 3210. The first output end 32113 is detachably fixed to the first output shaft 32112, or the first output shaft 32112 and the first output end 32113 are integrally formed as a single part (not shown). The second output end 32111 is detachably fixed to the second output shaft 3219, or the second output shaft 3219 and the second output end 32111 are integrally formed as a single part (not shown). In addition, as shown in Figure 3, the inside of the roller brush body 311 is provided with a groove that matches the first output end 32113 and the second output end 32111. The first output end 32113 and the second output end 32111 can be engaged or meshed with the groove inside the roller brush body 311 to drive the roller brush body 311.

[0065] In some embodiments, the second output shaft 3219 is fixedly connected to the third transmission end and rotates with the rotation of the third transmission end. Specifically, the third transmission end is the second planetary carrier 3218 or the second sun gear 3216 configured as the third transmission end, as mentioned above. In some embodiments, as shown in FIG4, the second output shaft 3219 is fixedly connected to the second planetary carrier 3218, and the second output shaft 3219 rotates synchronously with the rotation of the second planetary carrier 3218, for outputting a driving force at a second rotational speed. In some embodiments, as shown in FIG5, the second output shaft 3219 is fixedly connected to the second sun gear 3216, and the second output shaft 3219 rotates synchronously with the rotation of the second sun gear 3216, for outputting a driving force at a second rotational speed. The second output shaft 3219 is fixedly connected to the second output end 32111, and the second output end 32111, after fixing the second output shaft 3219 to the brush body 311 shown in FIG3, causes the brush body 311 to rotate at a second rotational speed.

[0066] In some embodiments, the second output shaft 3219, the second output end 32111, and the third transmission end are provided with through holes along the axial direction. The first output shaft 32112 passes through the through holes and is fixedly connected to the second transmission end. The second transmission end is the second planetary carrier 3218 or the second sun gear 3216, which is configured as the second transmission end as mentioned above. In some embodiments, as shown in FIG4, the second output shaft 3219, the second output end 32111, and the second planetary carrier 3218 are hollow structures, for example, with a through hole in the center. The first output shaft 32112 passes through the hollow structure of the second output shaft 3219, the second output end 32111, and the second planetary carrier 3218 and is connected to the second sun gear 3216 for transmission. The first output shaft 32112 rotates with the rotation of the second sun gear 3216 to output the driving force of the first speed. In some embodiments, as shown in FIG5, the second output shaft 3219, the second output end 32111, and the second sun gear 3216 are hollow structures, for example, with a through hole in the center. The first output shaft 32112 passes through the hollow structure of the second output shaft 3219, the second output end 32111, and the second sun gear 3216 and is connected to the second planetary carrier 3218 for transmission. The first output shaft 32112 rotates with the rotation of the second planetary carrier 3218 to output the driving force of the first rotational speed. The first output shaft 32112 is fixedly connected to the first output end 32113. After the first output end 32113 fixes the first output shaft 32112 to the roller brush body 311 shown in FIG3, the roller brush body 311 rotates at the first rotational speed. In addition, a through hole corresponding to the third transmission end, the second output shaft 3219 and the second output end 32111 can be provided on the second transmission end. The first output shaft passes through the through hole in the center of the second output end 32111, the second output shaft 3219, the third transmission end and the second transmission end in sequence and is fixedly connected to the first transmission end. Since the first transmission end and the second transmission end are also fixedly connected, this connection method will not change the speed ratio between the first output shaft 32112 and the second output shaft 3219.

[0067] After the first output shaft 32112 and the second output shaft 3219 are connected to the roller brush body 311, the speed ratio between the first output shaft 32112 and the second output shaft 3219 is in the range of 1:(0.11~0.5) or 1:(2~9). Furthermore, the first output shaft 32112 and the drive motor 3210 can switch their connection modes according to different cleaning tasks. When wet cleaning is required, the roller brush body 311 is connected to the lower-speed output shaft 32112 or the second output shaft 3219 to perform wet cleaning. When dry cleaning is required, the roller brush body 311 is connected to the higher-speed output shaft 32112 or the second output shaft 3219 to perform dry cleaning. This allows the roller brush assembly to use two sets of roller brushes for both wet and dry cleaning, making roller brush replacement convenient and quick, saving on roller brush assembly costs, and improving the user experience.

[0068] In some other embodiments, as shown in FIG7, the drive assembly 320 includes a drive housing 3211, a drive motor 3210, a first planetary gear system 330, a second planetary gear system 340, a gear ring 3212, a first output end 32113, a first output shaft 32112, a second output end 32111, and a second output shaft 3219, etc. The drive motor 3210, the first planetary gear system 330, the second planetary gear system 340, the gear ring 3212, etc. are disposed within the drive housing 3211. The first output end 32113, the first output shaft 32112, the second output end 32111, and the second output shaft 3219, etc., are at least partially disposed within the drive housing 3211. The specific structure is as described above and will not be repeated here. The drive assembly 320 also includes a switching element 350, which is disposed between the first output end 32113 and the second output end 32111, and is movably sleeved on the first output shaft 32112. The switching element 350 is used to engage with the roller brush body 311 as shown in FIG3 and drive the roller brush body 311 to rotate.

[0069] In some embodiments, as shown in Figures 8 and 9, the switching element 350 has external teeth, and the brush body 311 has an assembly structure 370. The assembly structure 370 has a receiving space for accommodating the switching element 350, and the receiving space has internal teeth. When the brush body 311 is inserted into the drive assembly 320 to form the brush assembly 300, the switching element 350 engages with the internal teeth of the brush body 311 through the external teeth. Under the action of this engagement, the brush body 311 rotates as the switching element 350 rotates. Furthermore, the brush body 311 also has two assembly structures 370, one in a first position as shown in Figure 8 and the other in a second position as shown in Figure 9.

[0070] In some embodiments, as shown in FIG8, the drive assembly 320 further includes an elastic element 360, which is disposed between the switching element 350 and the second output end 32111, and is disposed on the first output shaft 32112 in a way that can be expanded or compressed. The elastic element 360 abuts against the switching element 350 so that it engages with the internal teeth of the assembly structure 370 in a first position. In the first position, the switching element 350 is engaged with the first output shaft 32112, and the brush body 311 rotates at a first speed. Specifically, as shown in Figures 8 and 9, the switching element 350 includes a first engagement groove 351, which is used to engage with the first output end 32113 in a first position. The first output end 32113 extends into the first engagement groove 351 and is fixed to the first output shaft 32112 by screws. Since the first output end 32113 has a helical engagement structure in the rotation direction of the brush body 311, it can engage with the first engagement groove 351, thereby ensuring stable engagement between the switching element 350 and the first output shaft 32112 in the rotation direction of the brush body 311. In the first position, since the brush body 311 is only fixedly connected to the first output shaft 32112, it can rotate with the first output shaft 32112 at a first rotational speed.

[0071] In some embodiments, as shown in FIG9, when the assembly structure 370 of the roller brush body 311 is in the second position, the elastic member 360 is compressed between the second output shaft 3219 and the switching element 350, and the switching element 350 engages with the internal teeth of the assembly structure 370 in the second position; wherein, in the second position, the switching element 350 is engaged with the second output shaft 3219, and the roller brush body 311 rotates at a second rotational speed. Specifically, as shown in FIG8 and FIG9, the switching element 350 includes a second engagement groove 352, which is used to engage with the second output end 32111 in the second position. The second output end 32111 extends into the second engagement groove 352 and is fixed to the second output shaft 3219. Since the second output end 32111 has an engagement structure in the rotation direction of the roller brush, it can engage with the second engagement groove 352, thereby enabling the switching element 350 and the second output shaft 3219 to be stably engaged in the rotation direction of the roller brush body 311. In the second position, since the brush body 311 is fixedly connected only to the second output shaft 3219, it can rotate with the second output shaft 3219 at the second rotational speed.

[0072] In some embodiments, as shown in FIG8, the assembly structure 370 has a roller brush body 311 in a first position, and as shown in FIG9, the assembly structure 370 has a roller brush body 311 in a second position. The two types of roller brush bodies 311 are respectively engaged with a first output shaft 32112 and a second output shaft 3219. By replacing the roller brush bodies 311 with different structures, the roller brush bodies 311 can operate at different speeds. The two structures of the roller brush body 311 are designed with brushes made of different materials adapted to the desired cleaning surface. For example, the first type of brush body can be a bristle brush, and the second type of brush body can be a soft brush or a cloth. Thus, the roller brush 311 with the first type of brush body can perform dry cleaning at a higher speed for cleaning carpets or floor mats; the roller brush 311 with the second type of brush body can perform wet cleaning at a lower speed for cleaning floors such as tiles, marble, or wooden floors.

[0073] In some embodiments, a roller brush with two different brush bodies is integrally formed. Specifically, the surface of the roller brush body 311 has flexible brush parts and hard brush parts. The flexible brush parts are made of materials such as wool or polyester fiber, and the hard brush parts are made of materials such as nylon or plastic. When the roller brush body 311 is at a slower speed in either the first or second rotational speed, the hard brush parts are attached to the roller brush body 311 at the second rotational speed, and detach from the roller brush body 311 at a faster speed in either the first or second rotational speed. Specifically, the assembly structure 370 can be configured as a movable structure, allowing it to move between a first and a second position via a manual switch. This design allows the roller brush body 311 to achieve two working modes. For example, the surface of the roller brush body 311 is covered with flexible brush parts for wet cleaning, and the roller brush body 311 has through holes, allowing the hard brush parts to extend and retract through the through holes for dry cleaning. Alternatively, the brush bristles can be switched by the centrifugal rotation of the roller brush. For example, the surface of the roller brush body 311 is covered with flexible brush parts for wet cleaning, and the longer hard brush parts are used for dry cleaning. The brush is mounted on the roller brush body 311. When the roller brush body 311 rotates at a low speed in the second position, the centrifugal force of the rotation of the roller brush body 311 is insufficient to extend the hard brush. At this time, wet cleaning is performed by the soft brush. When dry cleaning is required, the roller brush body 311 is switched to the first position, so that the roller brush body 311 rotates at a higher speed. The hard brush can then extend through centrifugal force for dry cleaning. In this way, the roller brush with two functions can be designed into one unit. The brush body material can be switched with an integrated design, saving consumables and improving cleaning efficiency.

[0074] In some embodiments, the roller brush body 311 includes a sensing element that senses each other with a corresponding sensing element on the base 100 to determine the type of the roller brush body 311, thereby determining whether a dry cleaning roller brush or a wet cleaning roller brush is currently being used, and thus executing different roller brush cleaning strategies and drying strategies.

[0075] This disclosure also provides a cleaning device, which includes a roller brush assembly 300 as described in any of the preceding embodiments, the roller brush assembly 300 being mounted on the cleaning device to perform surface cleaning.

[0076] This disclosure also provides a cleaning system, including a base station and the aforementioned cleaning equipment. After performing surface cleaning, the cleaning equipment performs at least one of the following at the cleaning base station: self-cleaning, drying, water replenishment, and charging. The structure and principle of the base station are described in related technologies and will not be elaborated here.

[0077] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A roller brush assembly, wherein, include: Roller brush body; A drive assembly, comprising a first output shaft and a second output shaft coaxially arranged, wherein the first output shaft and the second output shaft are respectively connected to the brush body for transmission. A drive motor, wherein the first output shaft and the second output shaft are respectively connected to the drive motor for transmission, wherein... The ratio of the rotational speed of the first output shaft to that of the second output shaft is in the range of 1:(0.11~0.5) or 1:(2~9), and the ratio of the rotational speed of the first output shaft to that of the drive motor is in the range of 1:(0.11~0.5) or 1:(2~9).

2. The roller brush assembly according to claim 1, wherein, The drive assembly includes a first planetary gear system and a second planetary gear system, which are sequentially connected to the drive motor. The first output shaft is driven by either the first planetary gear system or the second planetary gear system, and the second output shaft is driven by the second planetary gear system.

3. The roller brush assembly according to claim 2, wherein, The drive assembly includes a first planetary gear system and a second planetary gear system, wherein... The first planetary gear system includes: a first sun gear, a plurality of first planet gears, and a first planet carrier configured as a first transmission end, which are sequentially driven and axially arranged and connected to the drive motor; or, a first planet carrier, a plurality of first planet gears, and a first sun gear configured as a first transmission end, which are sequentially driven and axially arranged and connected to the drive motor; and / or, The second planetary gear system includes: a second sun gear, a second planet gear, and a second planet carrier, which are sequentially driven and axially arranged and fixedly connected to the first transmission end and configured as the second transmission end; or, a second planet carrier, a second planet gear, and a second sun gear, which are sequentially driven and axially arranged and fixedly connected to the first transmission end and configured as the second transmission end.

4. The roller brush assembly according to claim 3, wherein, The second output shaft is fixedly connected to the third transmission end. Both the second output shaft and the third transmission end have through holes along the axial direction. The first output shaft passes through the through hole and is fixedly connected to the second transmission end. Alternatively, The second output shaft is fixedly connected to the third transmission end. The second output shaft, the third transmission end, and the second transmission end are provided with through holes along the axial direction. The first output shaft passes through the through holes and is fixedly connected to the first transmission end.

5. The roller brush assembly according to claim 3, wherein, The drive assembly includes a gear ring that meshes with a first planetary gear and a second planetary gear.

6. The roller brush assembly according to any one of claims 1-5, wherein, The drive assembly further includes a first output end, configured to drive the first output shaft to the brush body, wherein the first output end is coaxial with the first output shaft and is located at the end of the first output shaft away from the drive motor. The drive assembly further includes a second output end, configured to drive the second output shaft to the brush body. The second output end has a through hole along the axial direction, the second output end is coaxial with the second output shaft, and the second output end is located at the end of the second output shaft away from the drive motor.

7. The roller brush assembly according to claim 6, wherein, The first output end or the second output end respectively engages or snaps into the brush body.

8. The roller brush assembly according to claim 6, wherein, The driving component also includes: A switching element engages with the brush body, and the switching element engages with either the first output end or the second output end.

9. The roller brush assembly according to claim 8, wherein, The switching element is disposed between the first output terminal and the second output terminal, and the switching element is movably sleeved on the first output shaft.

10. The roller brush assembly according to claim 8, wherein, The switching element has external teeth, and the brush body has internal teeth, with the external teeth meshing with the internal teeth.

11. The roller brush assembly according to claim 8, wherein, The driving component also includes: An elastic element is configured to engage the switching element with the brush body in a first position or a second position, and the elastic element is disposed between the second output end and the switching element; In the first position, the switching element is engaged with the first output shaft, and in the second position, the switching element is engaged with the second output shaft.

12. The roller brush assembly according to claim 11, wherein, The switching element further includes a first engagement groove and a second engagement groove, wherein the first engagement groove is configured to engage with the first output terminal at the first position, and the second engagement groove is configured to engage with the second output terminal at the second position.

13. The roller brush assembly according to claim 1, wherein, The surface of the roller brush body is provided with flexible brush elements and / or hard brush elements, and / or the roller brush body includes a sensing element.

14. The roller brush assembly according to claim 13, wherein, The roller brush body has a flexible brush and a hard brush on its surface, wherein the flexible brush and the hard brush are disposed on the surface of the roller brush body, or the flexible brush is disposed on the surface of the roller brush body and the hard brush is disposed inside the roller brush body.

15. A cleaning device comprising a roller brush assembly as claimed in any one of claims 1-14, the roller brush assembly being assembled to the cleaning device for surface cleaning.

16. A cleaning system comprising the cleaning equipment as described in claim 15 and a base station therewith.

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