Cleaning apparatus and drive device

Abstract

The application provides a cleaning device and a driving device, which comprises a driving member, a transmission assembly and a rolling brush assembly. The transmission assembly is provided with a first speed reduction mechanism and a second speed reduction mechanism. At least part of the second speed reduction mechanism is arranged in the rolling brush assembly, so as to reduce the occupation of the axial space, so that the rolling brush assembly can be arranged to be longer in the axial direction, thereby increasing the cleaning area, reducing the cleaning dead angle, and further improving the cleaning effect. In addition, the length of the second speed reduction mechanism is shorter than the length of the driving member for driving the rolling brush assembly. Through the arrangement, not only the overall occupation space of the second speed reduction mechanism in the axial direction is reduced, but also the length of the second speed reduction mechanism located inside the rolling brush assembly is reduced when the length of the part located outside the rolling brush assembly is the same, so as to avoid affecting the installation of the rolling brush assembly.

Description

Technical Field

[0001] This application relates to the field of cleaning equipment technology, specifically to a cleaning device and its driving mechanism. Background Technology

[0002] Cleaning equipment typically includes a cleaning head, such as a floor brush. The floor brush comprises a motor, a gear reducer, and a roller brush assembly connected in sequence. After being reduced in speed by the gear reducer, the roller brush assembly is driven and rotated by the motor assembly. Here, the gear reducer is positioned on one axial side of the roller brush assembly, which prevents the roller brush assembly from achieving bilateral cleaning. That is, the edge of the roller brush assembly closest to the gear reducer cannot be cleaned by the gear reducer due to its obstruction, creating a cleaning dead zone.

[0003] Existing solutions achieve bilateral cleaning by placing the motor and transmission assembly in the middle, and the roller brush assembly on either side of the motor and transmission assembly along their axial direction, or by placing the motor inside the roller brush assembly. However, these solutions are structurally and technologically complex, resulting in higher costs. Furthermore, for the solution where the motor is built into the roller brush assembly, water can easily enter the motor during use, affecting its normal operation. Summary of the Invention

[0004] This application provides a cleaning device and a drive mechanism to improve the performance of the cleaning device.

[0005] This application provides a cleaning device, which includes a housing, a drive member, a support member, a transmission assembly, and a roller brush assembly. The drive member and the support member are installed inside the housing. The transmission assembly is disposed on the support member, connected to the output end of the drive member, and includes a first reduction mechanism and a second reduction mechanism connected in sequence. The roller brush assembly is disposed at the output end of the second reduction mechanism. The roller brush assembly has an axial direction and an inner receiving space. The receiving space extends along the axial direction and has an opening facing the second reduction mechanism.

[0006] Wherein, at least a portion of the second deceleration mechanism is located within the accommodating space, the length of the roller brush assembly along the axial direction is L3, and on the side of the roller brush assembly near the transmission assembly, the length of the support member and the housing along the axial direction outside the roller brush assembly is L5, and the value of L3:(L3+L5) is greater than or equal to 95%.

[0007] In some embodiments, the length of the second deceleration mechanism along the axial direction is shorter than the length of the drive member.

[0008] In some embodiments, the first reduction mechanism includes a first pulley, a second pulley, and a V-belt, wherein the V-belt is disposed on the first pulley and the second pulley.

[0009] In some embodiments, the transmission ratio of the V-belt is in the range of 1:1 to 1:6; and / or, the circumference of the V-belt is in the range of 160mm-250mm; and / or, the width of the V-belt is not greater than 5mm.

[0010] In some embodiments, the length of the accommodating space is L4 in the axial direction, the length of the roller brush is L3, the range of L3 / L4 is 1 / 4-1 / 2, the length range of the roller brush is 240-260mm, and the length of the accommodating space is not less than 70mm.

[0011] In some embodiments, the cleaning device further includes a coupling; the second reduction mechanism is a planetary gear reduction structure and has a planetary carrier output shaft, the coupling connects the planetary carrier output shaft and the roller brush assembly, and the length of the second reduction mechanism connected to the coupling along the axial direction is shorter than the length of the drive member.

[0012] In some embodiments, the support member is provided with a transmission connector, which is coaxially arranged with the roller brush assembly; the planetary gear reduction mechanism includes a housing, which is connected to the transmission connector.

[0013] In some embodiments, the transmission connector is further provided with a stabilizing bearing, the stabilizing bearing including a bearing portion and an additional portion disposed around the bearing portion.

[0014] In some embodiments, the length of the second reduction mechanism connected to the coupling along the axial direction is less than 100 mm.

[0015] In some embodiments, the cleaning device further includes a suction port disposed on the radial side of the roller brush assembly, and the end of the coupling away from the planetary carrier output shaft is located axially at a position not exceeding the suction port.

[0016] In some embodiments, the length of the portion of the second deceleration mechanism located axially within the accommodating space is LX, and the length of the roller brush assembly axially is L3, wherein LX is less than or equal to 2 / 5 of L3.

[0017] In some embodiments, the length of the portion of the second deceleration mechanism located axially within the accommodating space is LX, and the length of the roller brush assembly axially is L3, wherein LX is less than or equal to 1 / 4 of L3.

[0018] In some embodiments, the cleaning device further includes a support member, and the second deceleration mechanism and the drive member are both connected to the support member; the second deceleration mechanism further includes a housing connected to the support member, and the housing and the support member at least partially overlap each other in the axial direction.

[0019] Accordingly, this application also provides a driving device for a roller brush assembly. The driving device includes a driving member and a transmission assembly. The driving member has an axial direction. The transmission assembly is disposed at the output end of the driving member and includes a first reduction mechanism and a second reduction mechanism connected in sequence. The second reduction mechanism is used to connect to the roller brush assembly.

[0020] The second deceleration mechanism is shorter in the axial direction than the drive member.

[0021] In some embodiments, the drive device further includes a coupling; the second reduction mechanism is a planetary gear reduction structure and has a planetary carrier output shaft, the coupling connects the planetary carrier output shaft and the roller brush assembly, and the axial length of the second reduction mechanism after being connected to the coupling is shorter than the axial length of the drive member.

[0022] Accordingly, this application also provides a cleaning device, which includes a drive component, a transmission assembly, and a roller brush assembly. The transmission assembly is disposed at the output end of the drive component and includes a first reduction mechanism and a second reduction mechanism connected in sequence. The roller brush assembly is disposed at the output end of the second reduction mechanism. The roller brush assembly has an axial direction and an inner accommodating space. The accommodating space extends along the axial direction and has an opening facing the second reduction mechanism.

[0023] In some embodiments, at least a portion of the second deceleration mechanism is located within the accommodating space, the length of the roller brush assembly along the axial direction is L3, and on the side of the roller brush assembly near the transmission assembly, the length of the support member and the housing along the axial direction outside the roller brush assembly is L5, and the value of L3:(L3+L5) is greater than or equal to 90%.

[0024] This application has the following beneficial effects: This application provides a cleaning device and a driving device. The transmission component is provided with a first reduction mechanism and a second reduction mechanism, and at least a part of the second reduction mechanism is disposed in the roller brush assembly to reduce the occupation of axial space, so that the roller brush assembly can be set longer in the axial direction, thereby increasing the cleaning area, reducing cleaning dead corners, and thus improving the cleaning effect.

[0025] In some embodiments, the length of the roller brush assembly along the axial direction is L3, and the length of the support and the housing along the axial direction outside the roller brush assembly on the side of the roller brush assembly near the transmission assembly is L5. The value of L3:(L3+L5) is greater than or equal to 95%, and the roller brush assembly is set to be relatively long in order to achieve better cleaning.

[0026] In some embodiments, the length of the second deceleration mechanism is shorter than the length of the drive member used to drive the roller brush assembly. This arrangement not only helps to reduce the overall axial space occupied by the second deceleration mechanism, but also helps to reduce the length of the second deceleration mechanism located on the inner side of the roller brush assembly when the length of the portion located on the outer side of the roller brush assembly is the same, so as not to affect the installation of the roller brush assembly. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 An exemplary structural diagram of a cleaning device is shown.

[0029] Figure 2 Exemplary schematic diagrams show the connection of the drive unit and transmission components in some embodiments.

[0030] Figure 3 An exploded view of the drive unit and transmission assembly is shown as an example in some embodiments.

[0031] Figure 4 The diagram illustrates the connection of the second deceleration mechanism portion in some embodiments.

[0032] Figure 5 Cross-sectional views of the drive and transmission components in a cleaning device of some embodiments are shown as examples.

[0033] Figure 6 Exemplary schematic diagrams show the connection of the drive unit and transmission components in other embodiments.

[0034] Figure 7 An exploded view of the drive unit and transmission assembly is shown as an example in some other embodiments.

[0035] Figure 8 An exemplary schematic diagram of the connection of the second deceleration mechanism portion is shown in some other embodiments.

[0036] Figure 9Cross-sectional views of the drive and transmission components in a cleaning device of other embodiments are shown as examples.

[0037] Key component markings in the embodiments of this application:

[0038] Cleaning equipment 10, drive components 100

[0039] Transmission assembly 200 First reduction mechanism 210

[0040] First pulley 211 Second pulley 212

[0041] V-belt 213, second reduction mechanism 220

[0042] Center input shaft 221 Planetary gear set 222

[0043] Internal gear ring 223 Planetary carrier 224

[0044] Planetary carrier output shaft 2241 Connecting shaft 2242

[0045] Housing 225, Bearing 226

[0046] Transmission connector 227 Stabilizing bearing 228

[0047] Roller brush assembly 300, opening 310

[0048] Storage space 320; First outer casing 410

[0049] Second outer shell 420, cover 430

[0050] Inner cavity 440, support component 500

[0051] Coupling 600, Dust extraction port 700 Detailed Implementation

[0052] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature.

[0054] This application provides a cleaning device and a driving mechanism, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0055] Please see Figure 1 This application provides a cleaning device 10, which can be a handheld vacuum cleaner, floor scrubber, carpet cleaner, desktop cleaner, cleaning robot, or other cleaning devices, and this embodiment does not limit it. Here, the cleaning device 10 includes a drive unit 100, a transmission assembly 200, and a roller brush assembly 300.

[0056] Here, the roller brush assembly 300 has an axis A. In the embodiments of this application, the axial, radial, and circumferential directions refer to the axis A. The axial direction refers to the direction in which the axis A extends, the radial direction refers to the direction perpendicular to the axis A, and the circumferential direction refers to the direction along a circumferential line extending concentrically around the axis A.

[0057] Here, the cleaning device 10 includes a housing; please refer to [link / reference needed]. Figure 1 The outer casing includes a first outer casing 410, a second outer casing 420, and a cover 430. The first outer casing 410 and the second outer casing 420 cooperate to form an inner cavity 440, within which the driving member 100, the transmission assembly 200, and the roller brush assembly 300 can be disposed. Figure 1In the illustrated direction, the first outer shell 410 is the upper shell, and the second outer shell 420 is the lower shell. The upper shell has a cover 430 at a position corresponding to the roller brush assembly 300. When the cover 430 is removed, the receiving position of the roller brush assembly 300 is exposed, facilitating the installation and removal of the roller brush assembly 300. When the cover 430 is installed on the upper shell, the roller brush assembly 300 is concealed, thus helping to protect the roller brush assembly 300 and other components within the inner cavity 440. The lower shell typically also has a perforated portion (not shown) corresponding to the position of the roller brush assembly 300, through which the roller brush assembly 300 is exposed downwards and can be used to clean the surface to be cleaned. Of course, in other embodiments, the cleaning device 10 may not have an outer shell, or the outer shell may not be limited to the above limitations; this embodiment does not impose such limitations.

[0058] The drive element 100 provides the driving force for moving the roller brush assembly 300. Typically, the drive element 100 is housed within a housing and can be a motor. The motor is generally arranged parallel to axis A, meaning its axial direction is parallel to the extending direction of axis A, to facilitate a transmission connection with the roller brush assembly 300. (See also...) Figure 2 and Figure 3 The cleaning device 10 described herein also includes a support member 500 disposed within the housing, and the drive member 100 is mounted on the support member 500, thereby allowing the drive member 100 to be held in the desired installation position.

[0059] When the motor is working, it can drive the roller brush assembly 300 to rotate. However, the motor speed is usually too high to provide suitable torque to the roller brush assembly 300. Therefore, a transmission assembly 200 needs to be set at the output end of the drive member 100. The drive member 100 is connected to the roller brush assembly 300 through the transmission assembly 200. The transmission assembly 200 is used to reduce the speed to increase the torque of the roller brush assembly 300.

[0060] Therefore, in the embodiments of this application, please refer to Figure 3 The transmission assembly 200 includes a first reduction mechanism 210 and a second reduction mechanism 220 connected in sequence. By setting two-stage reduction mechanisms, the rotational speed and torque of the roller brush assembly 300 can be better adjusted to the required range.

[0061] Please see here. Figure 2The first reduction mechanism 210 is a V-belt reduction structure, which includes a first pulley 211, a second pulley 212, and a V-belt 213. The V-belt 213 is wound around the first pulley 211 and the second pulley 212 to achieve a transmission connection between them. The radius of the first pulley 211 is smaller than the radius of the second pulley 212. The first pulley 211 is torsionalally connected to the output shaft of the drive member 100 and can rotate with the rotation of the output shaft of the drive member 100. The second pulley 212 is transmitted to the first pulley 211 via the V-belt 213, and the rotation of the first pulley 211 drives the rotation of the second pulley 212.

[0062] Here, the transmission ratio of the V-belt 213 ranges from 1:1 to 1:6, the circumference of the V-belt ranges from 160mm to 250mm, and the width of the V-belt 213 is no greater than 5mm. This configuration results in a smaller axial dimension (i.e., its width) of the V-belt 213, allowing the roller brush to be set longer for better cleaning. For example, the transmission ratio of the V-belt 213 is 1:3, the circumference is 214mm, and the width is 4mm. Another example is a transmission ratio of 1:6, a circumference of 250mm, and a width of 5mm. Yet another example is a transmission ratio of 1:1.1, a circumference of 160mm, and a width of 4mm. In yet another example, the transmission ratio of the V-belt 213 is 1:1.1, the circumference is 200mm, and the width is 5mm. Of course, the above examples do not show all possible values ​​for the V-belt parameters, and these examples do not constitute an undue limitation on this application. It is understood that the dimensions of the V-belt 213 may also satisfy at least one of the following: a transmission ratio range of 1:1 to 1:6, a circumference range of 160mm to 250mm, and a width of no more than 5mm. The example in this embodiment does not constitute an undue limitation.

[0063] Here, in the reduction mechanism applied to the cleaning device 10, a synchronous belt reduction structure is typically used instead of a V-belt reduction structure. This is because the reduction mechanism of the cleaning device 10 usually uses a single-stage reduction, which results in a large reduction ratio. In cases of large reduction, the V-belt 213 generates a lot of heat, which is detrimental to the use of the cleaning device 10. Therefore, in the cleaning device 10, the conventional approach in the art is to use a synchronous belt reduction structure to achieve the transmission connection between the motor and the roller brush assembly 300. However, the inventors of this application have discovered that when a two-stage reduction is applied, the heat generation of the V-belt 213 is significantly reduced, no longer causing a significant adverse effect on the use of the cleaning device 10. In particular, in this application, if a synchronous belt reduction mechanism is used and the size of the synchronous belt is set to be similar to the size of the V-belt 213, the toothed structure on the inner circumference of the synchronous belt is prone to wear, resulting in poor service life and stability. Therefore, in some embodiments of this application, the first reduction mechanism 210 uses the aforementioned V-belt reduction structure, which can provide better transmission stability and a longer service life.

[0064] Of course, it is understood that in other embodiments, the first reduction mechanism 210 can also be a synchronous belt reduction structure, a sprocket reduction structure, etc. This embodiment does not limit it. For example, in applications where transmission accuracy and stability are relatively low, such as household cleaning equipment 10, which cleans relatively flat surfaces, a synchronous belt reduction structure can be used as the first reduction mechanism 210, as it has the advantage of low cost. However, compared to synchronous belt reduction structures, the V-belt reduction structure provided in this embodiment can achieve better technical effects such as higher transmission stability and longer service life while having a shorter width (i.e., a shorter axial dimension in the roller brush assembly 300).

[0065] Please see here. Figure 5 In some embodiments, the support member 500 is located on the side of the roller brush assembly 300 near the first reduction mechanism 210 and the second reduction mechanism 220, and the support member 500 is connected to the housing of the cleaning device. The first pulley 211 and the second pulley 212 of the first reduction mechanism 210 are located inside the support member 500. Here, the axial length of the roller brush assembly 300 is L3, and the axial length of the support member 500 and the housing of the cleaning device 10 outside the roller brush assembly 300 is L5. The value of L3:(L3+L5) is greater than or equal to 95%, so that the roller brush assembly 300 can be set relatively long axially within the housing of the cleaning device 10 to reduce cleaning dead angles on the sides. For example, the length of L3 is 250 mm, the length of L5 is 11.4 mm, and the value of L3:(L3+L5) is 95.6%.

[0066] Please see here. Figure 3 The second reduction mechanism 220 is a planetary gear reduction structure, which includes a central input shaft 221, a planetary gear set 222, an internal gear ring 223, and a planet carrier 224.

[0067] Please combine Figure 4 The central input shaft 221 is torsionally connected to the second pulley 212. Here, the central input shaft 221 is connected to the second pulley 212 by screws, and the axis of the central input shaft 221 passes through the center of the second pulley 212. Furthermore, the central input shaft 221 is coaxial with axis A. When the second pulley 212 rotates, it synchronously drives the central input shaft 221 to rotate. Of course, it is understood that in other embodiments, the specific connection method between the central input shaft 221 and the second pulley 212 may be different. For example, the central input shaft 221 may be integrally formed with the second pulley 212, etc. This embodiment does not limit this.

[0068] An external gear is mounted on the central input shaft 221, and the external gear meshes with the planetary gear set 222. Exemplarily, the planetary gear set 222 includes three planetary driven gears (not shown in the figure). The three planetary driven gears are evenly arranged circumferentially around the straight line containing the central input shaft 221 as their axis, and all mesh with the central input shaft 221 at its center. Thus, when the central input shaft 221 rotates, it drives the three planetary driven gears to rotate. It is understood that in other embodiments, the planetary gear set 222 may also employ four or more planetary driven gears; this embodiment does not limit this.

[0069] Furthermore, the planetary gear set 222 meshes within the internal gear ring 223. In the example where three planetary driven gears are provided, all three planetary driven gears mesh radially inside the internal gear ring 223. The planetary driven gears can rotate within the internal gear ring 223. The internal gear ring 223 and the central input shaft 221 mesh with the inner and outer sides of the planetary gear set 222, respectively, so that the planetary gear set 222 can stably perform revolution and rotation.

[0070] Meanwhile, the planetary gear set 222 is mounted on the planet carrier 224, and a connecting shaft 2242 is provided on the planet carrier 224 corresponding to the planetary driven gear of the planetary gear set 222 (see [link]). Figure 3The connecting shaft 2242 is used to connect the planetary driven gear. When the planetary driven gear of the planetary gear set 222 revolves about the axis A, it can drive the planet carrier 224 to rotate. Furthermore, the planet carrier 224 has a planet carrier output shaft 2241, which is connected to the brush assembly 300 via a connecting shaft 2242. Therefore, when the planetary gear set 222 rotates, it can drive the planet carrier 224 to rotate, thereby transmitting power to the brush assembly 300 through the planet carrier output shaft 2241, and causing the brush assembly 300 to rotate circumferentially along the axis A.

[0071] In some embodiments, to protect the components, the second transmission mechanism further includes a housing 225, which can be connected to the support member 500, thereby holding the second transmission mechanism in a desired position. The central input shaft 221, planetary gear set 222, internal gear ring 223, and planet carrier 224 are disposed within the housing 225. The central input shaft 221 extends from inside the housing 225 towards the outside near the second pulley 212, and the planet carrier output shaft 2241 of the planet carrier 224 extends from inside the housing 225 towards the outside near the roller brush assembly 300. Furthermore, for the portion of the planetary carrier output shaft 2241 located within the housing 225, a bearing 226 or similar may be provided between the radially outer side of the planetary carrier output shaft 2241 and the radially inner side of the housing 225. Similarly, for the portion of the central input shaft 221 located within the housing 225, a bearing may also be provided between the radially outer side of the central input shaft 221 and the radially inner side of the housing 225. This embodiment does not impose any limitations on these provisions. Additionally, for assembly accuracy and other requirements, shims and retaining rings may be provided in the second transmission mechanism. This embodiment does not impose any limitations on these provisions.

[0072] The planetary gear reduction structure has been illustrated above. However, it is understood that those skilled in the art can modify the various components of the planetary gear reduction structure and still achieve the function of speed reduction transmission. It is only necessary that the second reduction mechanism 220 is connected to the first reduction mechanism 210 and that the second reduction mechanism 220 has an output end for outputting power to the roller brush assembly 300. This embodiment does not impose undue limitations on the specific components and connection structure of the planetary gear reduction structure in this application.

[0073] For example, in some other embodiments, please refer to Figures 6 to 9 This illustrates the second reduction mechanism 220 and its connection relationships with other components. Here, the second reduction mechanism 220 is connected to... Figures 1 to 5The structure of the second reduction mechanism 220 shown is largely the same. The difference lies in the details shown here; please refer to [the relevant documentation / reference]. Figure 7 The second deceleration mechanism 220 further includes a transmission connector 227 and a stabilizing bearing 228. The transmission connector 227 is disposed on the support member 500 and extends axially toward the roller brush assembly 300. Here, the transmission connector 227 is coaxially arranged with axis A, that is, the transmission connector 227 has axis A as its centerline. Please refer to... Figure 8 The stabilizing bearing 228 is disposed radially outside the support member 500. The stabilizing bearing 228 includes a bearing portion and an additional portion disposed around the bearing portion. Exemplarily, the stabilizing bearing 228 can be a plastic-coated bearing, and the additional portion is made of nylon PA, polyoxymethylene POM, or engineering plastic polypropylene, etc. Here, because the roller brush assembly 300 will come into contact with external objects when rotating, the roller brush assembly 300 may vibrate. This vibration may drive the second reduction mechanism 220, which is in transmission with it, to vibrate, causing the central axis of components such as the central input shaft 221 and the planetary carrier output shaft 2241 of the second reduction mechanism 220 to deviate from axis A. Consequently, the stability of the planetary gear set 222 meshing with the central input shaft 221 and the planetary carrier output shaft 2241 will decrease. Figures 6 to 9 In the example shown, the transmission connector 227, coaxially arranged with axis A, keeps the central axis of housing 225 within the housing 225 without deviating from axis A. This limits the movement of components within housing 225, such as the central input shaft 221, planetary gear set 222, and planetary carrier output shaft 2241, ensuring each component remains in a preset position. The stabilizing bearing 228 supports the transmission connector 227, contributing to its stability. In some embodiments, the stabilizing bearing 228 may be omitted; this embodiment does not impose such limitations. This arrangement makes the transmission of the second reduction mechanism 220 more stable, less susceptible to interference from external forces. The transmission connector 227 can be a single piece or a structure composed of multiple components. For example, it may include a first part connected to housing 225 and a second part connected to support member 500. The first and second parts are connected by bolts, welding, snap-fitting, or other methods; this embodiment does not impose such limitations.

[0074] As stated above, please refer to Figure 1 and combined Figure 5The cleaning device 10 further includes a roller brush assembly 300, which is disposed at the output end of the second reduction mechanism 220. Exemplarily, the roller brush assembly 300 includes a base and roller brush strips and / or bristles (not shown) disposed on the base. Typically, the base is generally cylindrical, and the roller brush strips and / or bristles are disposed on the outer surface of the base. Please refer to [further details omitted]. Figure 5 The substrate has an accommodating space 320 on its axial inner side. The accommodating space 320 extends along the axial direction and penetrates the substrate near the end of the second deceleration mechanism 220, so as to form an opening 310 at the end of the substrate near the second deceleration mechanism 220 (please refer to...). Figure 1 The opening 310 is used to allow at least a portion of the second reduction mechanism 220 to extend into the receiving space 320. Exemplarily, the planet carrier output shaft 2241 of the planetary gear reduction structure extends into the receiving space 320 through the opening 310 and is connected to the base.

[0075] Here, as Figure 5 As shown, the axial length L2 of the second reduction mechanism 220 is shorter than the axial length L1 of the drive member 100, meaning that the free end of the drive member 100 is further away from the first reduction mechanism 210 in the axial direction than the free end of the second reduction mechanism 220. Specifically, the axial length L1 of the drive member 100 includes the length of its output shaft, and the axial length L2 of the second reduction mechanism 220 includes the length of its output shaft. Correspondingly, the axial length of the accommodating space for accommodating the second reduction mechanism 220 can also be shorter than the axial length L1 of the drive member 100. Of course, it is understood that in other embodiments, the axial length of the accommodating space can also be longer than the axial length L1 of the drive member 100.

[0076] Here, at least a portion of the second deceleration mechanism 220 is located within the accommodating space, with the remaining portion located axially outside the roller brush assembly 300. The more of the second deceleration mechanism 220 is located within the accommodating space, the smaller the space occupied by the second deceleration mechanism 220 outside the roller brush assembly 300. This allows for a longer axial length of the roller brush assembly 300 within the housing, resulting in fewer cleaning dead zones and a better cleaning effect. For example, when the second deceleration mechanism 220 is entirely located within the accommodating space, only the support member and the first deceleration mechanism 210 are located axially outside the accommodating space. Therefore, the base of the roller brush assembly 300 can be axially longer, and only the axial area occupied by the support member and the second pulley 212 of the first deceleration mechanism 210, projected onto the surface to be cleaned, cannot be cleaned, thus reducing the cleaning dead zones of the roller brush assembly 300.

[0077] However, it is understandable that because the roller brush assembly 300 is surrounded by a housing, the axial displacement of the roller brush assembly 300 is limited during installation and removal. If the axial dimension of the portion of the second deceleration mechanism 220 extending into the accommodating space of the roller brush assembly 300 is too long, the operation of extending the second deceleration mechanism 220 into and connecting it to the roller brush assembly 300, as well as the operation of removing the roller brush assembly 300 from the second deceleration mechanism 220, will be inconvenient.

[0078] Here, the axial length L2 of the second deceleration mechanism 220 is set to be relatively short, thereby reducing the space occupied by the second deceleration mechanism 220 in the axial direction. Thus, when the second deceleration mechanism 220 is inserted into the roller brush assembly 300, it helps to ensure that the axial dimension of its inserted portion is small, while also ensuring that the axial dimension of its portion located on the outer side of the roller brush assembly 300 is also small. For example, even when the second deceleration mechanism 220 is fully inserted into the receiving space 320 of the roller brush assembly 300, its small axial dimension does not significantly affect the installation and disassembly of the roller brush assembly 300. Therefore, through the above arrangement, the roller brush can be made longer to reduce cleaning dead zones and achieve better cleaning results, while also ensuring the ease of installation and disassembly of the roller brush assembly 300. Of course, in other embodiments, the second deceleration mechanism 220 may also be partially located outside the accommodating space 320 on the axial side away from the roller brush assembly 300. Since a portion of the second deceleration mechanism 220 has been accommodated within the accommodating space 320, and the overall axial length of the second deceleration mechanism 220 is relatively small, the axial length of the remaining second deceleration mechanism 220 located outside the accommodating space 320 will also be relatively small, which helps to reduce the impact on the length of the roller brush and reduce the cleaning dead angles of the cleaning device 10.

[0079] For example, in some embodiments, the length of the portion of the second deceleration mechanism 220 located within the accommodating space 320 along the axial direction is LX, then the length of the portion of the second deceleration mechanism 220 located outside the accommodating space 320 along the axial direction is L2-LX, the length of the roller brush assembly 300 along the axial direction is L3, and LX is less than or equal to 2 / 5 of L3.

[0080] As previously mentioned, in some embodiments, the second reduction mechanism 220 is connected to the roller brush assembly 300 via a coupling 600. Therefore, the axial length L4 of the second reduction mechanism 220 after connection with the coupling 600 also affects the cleaning effect and ease of installation of the roller brush assembly 300. Thus, in these embodiments, the axial length L4 of the second reduction mechanism 220 after connection with the coupling 600 is set to be shorter than the axial length L1 of the drive member 100.

[0081] In some embodiments, the axial length of the accommodating space 320 is L4, the length of the roller brush assembly 300 is L3, the ratio of L3 to L4 is between 1 / 4 and 1 / 2, and the length of the roller brush assembly 300 is between 240 and 260 mm. The length of the accommodating space 320, L4, is not less than 70 mm. This facilitates the installation of the roller brush assembly 300 into the accommodating space 320. For example, the value of L3 / L4 is 1 / 4; for another example, the value of L3 / L4 is 1 / 2; and for yet another example, the value of L3 / L4 is 1 / 3. In some embodiments, the axial length L4 of the second reduction mechanism 220 after connection with the coupling 600 is less than 100 mm. Here, for example, the axial length of the roller brush assembly 300 is set between 235 mm and 250 mm. In some embodiments, please refer to... Figure 1 The cleaning device 10 also includes a suction port 700, which is located on the radial side of the roller brush assembly 300, typically in the middle region of the floor brush. Here, the direction in which the cleaning device 10 moves during operation is considered forward (please refer to...). Figure 3 The suction port 700 is typically located at the rear of the roller brush assembly 300, but this embodiment is not limited to this, and the suction port 700 can also be located at other positions on the roller brush assembly 300. Furthermore, the suction port 700 connects to the inner cavity 440, and the suction port 700 connects to a dust collection assembly (not shown) provided in the cleaning device 10 through a suction channel (not shown). The dust collection assembly can be a dust bin, dust bag, etc. A suction source is configured in the suction channel to generate suction pressure; the suction source can be a pump, etc. In use, dust and other foreign objects stirred up by the roller brush assembly 300 will be sucked into the dust collection assembly through the suction port 700 and the suction channel under the action of suction pressure.

[0082] Here, a significant amount of dust will accumulate at the suction port 700. If the second reduction mechanism 220 or the coupling 600 extends to the front of the vacuum cleaner, dust will easily adhere to the second reduction mechanism 220 and / or the coupling 600 due to the inability to achieve a complete assembly seal. This reduces the cleanliness of the second reduction mechanism 220 and / or the coupling 600, and the intrusion of dust may affect the connection between the components, thereby affecting the stability of the transmission. Furthermore, since the second reduction mechanism 220 and / or the coupling 600 are typically fixed within the housing of the cleaning device 10, they are not easily disassembled or cleaned.

[0083] Therefore, in some embodiments, the end of the second reduction mechanism 220 extending into the accommodating space is axially positioned no more than the suction port 700, i.e., the suction port 700 is exposed to allow for the removal of contaminants accumulated in the suction port 700 after disassembly of the roller brush assembly. Exemplarily, when the second reduction mechanism 220 is connected to the roller brush assembly 300 via a coupling 600, the end of the coupling 600 remote from the planetary carrier output shaft 2241 is axially positioned no more than the suction port 700.

[0084] In some embodiments, please refer to Figure 4 The housing 225 is connected to the support member 500, and the housing 225 and the support member 500 overlap each other at least partially in the axial direction, that is, in Figure 4 In the Z-section, the housing 225 and the support member 500 overlap each other. Here, a portion of the housing 225 is disposed radially outside the support member 500. The axial overlap of the two ensures structural strength and sealing while minimizing the axial dimension of the housing 225 and the support member 500 after connection. This allows the roller brush assembly 300 to be set longer, resulting in better cleaning performance.

[0085] In other embodiments, please refer to Figure 8 The housing 225 is connected to the transmission connector 227, and the housing 225 and the transmission connector 227 overlap each other at least partially in the axial direction, that is, in Figure 8 In the Y-section, the housing 225 and the transmission connector 227 overlap. Here, a portion of the housing 225 is located radially outside the transmission connector 227. The axial overlap ensures structural strength and sealing while minimizing the axial dimension of the housing 225 and the transmission connector 227 after connection. This allows the roller brush assembly 300 to be longer, resulting in better cleaning performance.

[0086] Accordingly, embodiments of this application also provide a driving device for driving a roller brush assembly 300 to rotate. The driving device includes a driving member 100 and a transmission assembly 200. The driving member 100 has an axial direction, and its axial direction is parallel to the axial direction of the roller brush assembly 300. The transmission assembly 200 is disposed at the output end of the driving member 100 and includes a first reduction mechanism 210 and a second reduction mechanism 220 connected in sequence. The second reduction mechanism 220 is used to connect to the roller brush assembly 300.

[0087] The second deceleration mechanism 220 is shorter in the axial direction than the drive member 100.

[0088] In some embodiments, the first deceleration mechanism 210 includes a first pulley 211, a second pulley 212, and a V-belt 213, wherein the V-belt 213 is disposed on the first pulley 211 and the second pulley 212.

[0089] In some embodiments, the drive device is further provided with a coupling 600, the second reduction mechanism 220 is a planetary gear reduction structure and has a planetary carrier output shaft 2241, the coupling 600 connects the planetary carrier output shaft 2241 and the roller brush assembly 300, and the length of the second reduction mechanism 220 connected to the coupling 600 along the axial direction is shorter than the length of the drive member 100.

[0090] In some embodiments, the axial length of the second reduction mechanism after being connected to the coupling is less than 100 mm.

[0091] In some embodiments, the length of the portion of the second deceleration mechanism 220 located axially within the accommodating space is LX, and the length of the roller brush assembly 300 axially is L3, wherein LX is less than or equal to 2 / 5 of L3.

[0092] In some embodiments, the drive device further includes a support member 500, and the second deceleration mechanism 220 and the drive member 100 are both connected to the support member 500; the second deceleration mechanism 220 further includes a housing 225, the housing 225 is connected to the support member 500, and the housing 225 and the support member 500 overlap each other at least partially in the axial direction.

[0093] In some embodiments, the length of the roller brush assembly 300 along the axial direction is L3, and the length of the support member 500 and the housing of the cleaning device located axially outside the roller brush assembly 300 along the side of the roller brush assembly 300 near the transmission assembly 200 is L5, and the value of L3:(L3+L5) is greater than or equal to 95%.

[0094] Accordingly, embodiments of this application also provide a cleaning device 10, which includes a floor brush. The floor brush includes a drive member 100, a transmission assembly 200, and a roller brush assembly 300. The transmission assembly 200 is disposed at the output end of the drive member 100 and includes a first reduction mechanism 210 and a second reduction mechanism 220 connected in sequence. The roller brush assembly 300 is disposed at the output end of the second reduction mechanism 220. Here, the roller brush assembly 300 has an axial direction and an inner accommodating space 320. The accommodating space 320 extends along the axial direction and has an opening facing the second reduction mechanism 220.

[0095] At least a portion of the second deceleration mechanism 220 is located within the accommodating space 320, and the length of the second deceleration mechanism 220 along the axial direction is shorter than the length of the drive member 100.

[0096] In some embodiments, at least a portion of the second deceleration mechanism 220 is located within the accommodating space 320, the roller brush assembly 300 has an axial length of L3, and on the side of the roller brush assembly 300 near the transmission assembly 200, the support member 500 and the housing have an axial length of L5 outside the roller brush assembly 300, where the value of L3:(L3+L5) is greater than or equal to 90%.

[0097] For example, the value of L3:(L3+L5) is 90%; for another example, the value of L3:(L3+L5) is 92.5%; for yet another example, the value of L3:(L3+L5) is 95%; furthermore, in other examples, the value of L3:(L3+L5) may also be 96%, 97.5%, 98.3%, 99%, etc. It is understood that the above examples do not show all possible values, and the examples do not constitute an undue limitation on this application.

[0098] Here, the roller brush assembly 300 has a relatively long axial length L3, while the support member 500 and the outer shell have a shorter axial length L5 outside the roller brush assembly 300. This allows the roller brush assembly 300 to better clean the surface to be cleaned, with fewer cleaning dead spots on the side near the transmission component 200. Typically, the length of the roller brush assembly 300 can be set between 235mm and 250mm. In a preferred embodiment, the axial length of the roller brush assembly 300 can be set to 250mm. This represents a significant improvement in length compared to roller brush assemblies 300 in the prior art.

[0099] It is understood that the relevant settings in the aforementioned embodiments of the cleaning device 10 and the drive device can be applied to this embodiment, and will not be repeated here.

[0100] Application Example 1

[0101] In application example one, a cleaning device 10 is provided, which is a floor scrubber. The cleaning device 10 includes a floor brush, which comprises a motor, a transmission assembly 200, and a roller brush assembly 300 connected in sequence. The transmission assembly 200 includes a two-stage transmission structure: a first-stage transmission structure is a V-belt reduction structure, and a second-stage transmission structure is a planetary gear reduction structure. Part or all of the planetary gear reduction structure extends into the radially inner side of the roller brush assembly 300. Furthermore, the cleaning device 10 also includes a housing, on which a support member 500 is disposed. The motor and the transmission assembly 200 are disposed on the support member 500. The axial length of the roller brush assembly 300 is L3. On the side of the roller brush assembly 300 closest to the transmission assembly 200, the axial length of the support member 500 and the housing of the cleaning device 10 outside the roller brush assembly is L5, and the value of L3:(L3+L5) is greater than or equal to 95%.

[0102] Application Example 2

[0103] In application example two, a cleaning device 10 is provided. The cleaning device 10 is a carpet cleaner, which includes a floor brush. The floor brush includes a motor, a transmission assembly 200, and a roller brush assembly 300 connected in sequence. The transmission assembly 200 includes a two-stage transmission structure: a first-stage transmission structure is a V-belt reduction structure, and a second-stage transmission structure is a planetary gear reduction structure. Part or all of the planetary gear reduction structure extends radially inward into the roller brush assembly 300. Furthermore,

[0104] The axial dimension of the planetary gear reduction structure is smaller than that of the motor in the axial direction.

[0105] Application Example 3

[0106] In application example three, a cleaning device 10 is provided, which is a desktop cleaner and has a structure that is roughly the same as the cleaning device 10 provided in application example two. The difference is that the planetary carrier output shaft 2241 of the planetary gear reduction structure is connected to the roller brush assembly 300 through a coupling 600, and the axial dimension of the planetary gear reduction structure after being connected to the coupling 600 is smaller than the axial dimension of the motor.

[0107] Application Example 4

[0108] In application example four, a cleaning device 10 is provided, which has a structure largely the same as the cleaning device 10 provided in application example three. The difference is that it also includes a support member 500, specifically a support frame, and the motor and the second reduction mechanism 220 are both connected to the support member 500. A transmission connector 227 is provided on the support member 500, and the transmission connector 227 is coaxially arranged with the roller brush assembly 300; the planetary gear reduction mechanism includes a housing 225, which is sleeved on the transmission connector 227, and a stabilizing bearing 228 is provided between the housing 225 and the transmission connector 227.

[0109] Application Example 5

[0110] In application example five, a cleaning device 10 is provided, which has a structure largely the same as the cleaning device 10 provided in application example three. The difference is that it also includes a support member 500, specifically a support frame, to which both the motor and the second reduction mechanism 220 are connected. The longer of the axial length of the support member 500 and the axial length of the pulley of the V-belt reduction structure is 11.4 ± 2 mm. That is, on the side of the roller brush assembly 300 near the second reduction mechanism 220, the support member 500 and the V-belt reduction structure occupy approximately 11.4 ± 2 mm of length, and only the projected area of ​​this part on the surface to be cleaned cannot be cleaned by the roller brush assembly 300. The axial length of the roller brush assembly 300 can be set to 250 mm ± 2 mm, providing a larger cleaning range.

[0111] It is understood that the terms used in the embodiments of this application have the same meaning. For any content not described in detail in a certain embodiment, the specific implementation details can be referred to the descriptions in other embodiments. The examples and technical effects shown in the foregoing embodiments can be implemented accordingly. For repeated parts, this embodiment will not elaborate further.

[0112] The cleaning equipment and driving device provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A cleaning device, characterized in that, include, shell; The driving component is mounted on the housing; The driving component is a motor; Support member, mounted on the outer casing; A transmission assembly is disposed on the support member, connected to the output end of the drive member, and includes a first reduction mechanism and a second reduction mechanism connected in sequence. as well as A roller brush assembly is disposed at the output end of the second deceleration mechanism. The roller brush assembly has an axial direction and an inner receiving space. The receiving space extends along the axial direction and has an opening facing the second deceleration mechanism. Wherein, at least a portion of the second deceleration mechanism is located within the accommodating space, the length of the roller brush assembly along the axial direction is L3, and on the side of the roller brush assembly near the transmission assembly, the length of the support member and the housing along the axial direction outside the roller brush assembly is L5, and the value of L3:(L3+L5) is greater than or equal to 95%; the second deceleration mechanism and the drive member are both connected to the support member; the second deceleration mechanism also includes a housing, the housing being connected to the support member, and the housing and the support member at least partially overlap each other in the axial direction.

2. The cleaning equipment as described in claim 1, characterized in that, The length of the second deceleration mechanism along the axial direction is shorter than the length of the drive member.

3. The cleaning equipment as described in claim 1, characterized in that, The first reduction mechanism includes a first pulley, a second pulley, and a V-belt, wherein the V-belt is disposed on the first pulley and the second pulley.

4. The cleaning equipment as described in claim 3, characterized in that, The transmission ratio of the V-belt is in the range of 1:1 to 1:6; and / or, The circumference of the V-belt ranges from 160mm to 250mm; and / or, The width of the V-belt is no more than 5mm.

5. The cleaning equipment as described in claim 1, characterized in that, In the axial direction, the length of the accommodating space is L4, the length of the roller brush assembly is L3, the range of L3 / L4 is 1 / 4-1 / 2, and the length range of the roller brush assembly L3 is 240-260mm, and the length of the accommodating space L4 is not less than 70mm.

6. The cleaning equipment as described in claim 1, characterized in that, It also includes couplings; The second reduction mechanism is a planetary gear reduction structure and has a planetary carrier output shaft. The coupling connects the planetary carrier output shaft and the roller brush assembly. The length of the second reduction mechanism after being connected to the coupling along the axial direction is shorter than the length of the drive component.

7. The cleaning equipment as described in claim 6, characterized in that, The support member is provided with a transmission connector, which is coaxially arranged with the roller brush assembly. The second reduction mechanism includes a housing, which is connected to the transmission connector.

8. The cleaning equipment as described in claim 7, characterized in that, The transmission connector is also provided with a stabilizing bearing, which includes a bearing portion and an additional portion disposed around the bearing portion.

9. The cleaning equipment as described in claim 6, characterized in that, The length of the second reduction mechanism connected to the coupling along the axial direction is less than 100 mm.

10. The cleaning equipment as described in claim 6, characterized in that, It also includes a suction port, which is located on the radial side of the roller brush assembly, and the end of the coupling away from the planetary carrier output shaft is located axially at a position not exceeding the suction port.

11. The cleaning equipment as claimed in claim 1, characterized in that, The length of the portion of the second deceleration mechanism located within the accommodating space along the axial direction is LX, and the length of the roller brush assembly along the axial direction is L3, where LX is less than or equal to 2 / 5 of L3.

12. A cleaning device, characterized in that, include, Drive components; The transmission assembly is disposed at the output end of the drive component and includes a first reduction mechanism and a second reduction mechanism connected in sequence. as well as A roller brush assembly is disposed at the output end of the second deceleration mechanism. The roller brush assembly has an axial direction and an inner receiving space. The receiving space extends along the axial direction and has an opening facing the second deceleration mechanism. Wherein, at least a portion of the second deceleration mechanism is located within the accommodating space, and the remaining portion is located axially outside the roller brush assembly, and the length of the second deceleration mechanism along the axial direction is shorter than the length of the drive member; both the second deceleration mechanism and the drive member are connected to the support member; the second deceleration mechanism also includes a housing, which is connected to the support member, and the housing and the support member at least partially overlap each other in the axial direction.

13. The cleaning equipment as described in claim 12, characterized in that, At least a portion of the second deceleration mechanism is located within the accommodating space, the length of the roller brush assembly along the axial direction is L3, and on the side of the roller brush assembly near the transmission assembly, the length of the support member and the housing along the axial direction outside the roller brush assembly is L5, and the value of L3:(L3+L5) is greater than or equal to 90%.

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