Adjusting unit and mobile cleaner

Abstract

The present disclosure provides a regulating unit and a mobile cleaner. The regulating unit comprises a power input shaft, a worm part, a transmission part and an eccentric part; the power input shaft is used to receive the torque of a power source assembly to rotate around its rotation axis; the worm part is arranged on the part of the power input shaft other than the input end; the worm part is arranged close to the input end of the power input shaft; the transmission part is rotatably arranged on a brush roller unit and is arranged to engage with the worm part; the eccentric part is connected with the transmission part and is configured to be fixed relative to the rotation axis of the transmission part and to slidably abut the chassis assembly of the mobile cleaner when rotating; the eccentric part is configured to change rotation during the rotation of the power input shaft to change the lift of the brush roller part relative to the chassis assembly of the mobile cleaner.

Description

Technical Field

[0001] This disclosure relates to an adjustment unit and a portable cleaner. Background Technology

[0002] With technological advancements, more and more families are using home cleaning robots to clean their indoor floors. During the cleaning process, these robots are programmed to automatically perform cleaning tasks on the surfaces to be cleaned.

[0003] Existing household cleaning robots generally include a side brush assembly and a roller brush assembly. The side brush assembly agitates the dirt on the surface to be cleaned, and the roller brush assembly further agitates the dirt, which is then sucked into the dust collection box and other components.

[0004] However, when a home cleaning robot encounters liquid on the surface to be cleaned, or is operating in pure wet mopping mode, or passes through a carpet on its way back to the base station, it usually needs to lift the roller brush to remove it from the ground.

[0005] To raise and lower the roller brush, existing technologies typically employ a separate drive unit. However, considering that mobile cleaners have multiple components that need to be driven to rotate, existing mobile cleaners often include multiple drive units, which increases their cost and makes them more difficult to control.

[0006] Therefore, it is necessary to design an adjustment unit for a mobile cleaner to accommodate a drive device that enables the rotation and lifting of the brush roller component. Utility Model Content

[0007] This disclosure provides an adjustment unit and a portable cleaner.

[0008] According to one aspect of this disclosure, an adjustment unit is provided for a mobile cleaner to adjust the distance between a brush roller component of the brush roller unit of the mobile cleaner and the surface to be cleaned, comprising: A power input shaft, which is used to receive torque from a power source assembly and rotate about its axis of rotation; A worm gear portion is disposed on the portion of the power input shaft other than the input end; wherein the worm gear portion is disposed close to the input end of the power input shaft; A transmission member, rotatably disposed on the brush roller unit and configured to mesh with the worm gear portion; and An eccentric member, connected to the transmission member, is configured to be fixed relative to the rotation axis of the transmission member and slidably abut against the chassis assembly of the mobile cleaner during rotation; the eccentric member is configured to rotate during the rotation of the power input shaft to change the lift of the brush roller assembly relative to the chassis assembly of the mobile cleaner.

[0009] According to at least one embodiment of the adjustment unit of the present disclosure, the power source assembly includes a drive device disposed at one end near the adjustment unit.

[0010] According to at least one embodiment of the adjustment unit of the present disclosure, the worm gear portion is within the extension length range of the drive device in the length direction of the adjustment unit.

[0011] According to at least one embodiment of the adjustment unit of this disclosure, the eccentric member includes a rotation axis, and the rotation axis of the eccentric member is coaxial with the axis of rotation of the transmission member.

[0012] According to at least one embodiment of the adjustment unit of this disclosure, the vertical distance between the rotation axis of the eccentric member and the outer periphery of the eccentric member is between 5 mm and 12 mm.

[0013] According to at least one embodiment of the adjustment unit of this disclosure, the vertical distance between the rotation axis of the eccentric member and the outer periphery of the eccentric member varies non-linearly.

[0014] According to at least one embodiment of the adjustment unit of this disclosure, the projection of the eccentric member onto a plane perpendicular to the axis of rotation is approximately teardrop-shaped.

[0015] According to at least one embodiment of the adjustment unit of this disclosure, the eccentric member rotates unidirectionally about the rotation axis.

[0016] According to at least one embodiment of the adjustment unit of the present disclosure, at least a first outer peripheral surface and a second outer peripheral surface are defined on the outer periphery of the eccentric member, wherein the first outer peripheral surface is at the greatest distance from the rotation axis and the second outer peripheral surface is at the smallest distance from the rotation axis.

[0017] According to at least one embodiment of the adjustment unit of this disclosure, the first outer peripheral surface and the second outer peripheral surface are disposed opposite to each other on the eccentric member.

[0018] According to at least one embodiment of the adjustment unit of this disclosure, when the first outer peripheral surface or the second outer peripheral surface abuts against the chassis assembly of the mobile cleaner, the eccentric member can trigger the trigger of the mobile cleaner to cut off the torque transmitted by the power input axial eccentric member.

[0019] According to at least one embodiment of the adjustment unit of this disclosure, at least one of the first outer peripheral surface and the second outer peripheral surface includes a curved surface or a circular arc surface.

[0020] According to at least one embodiment of the adjustment unit of the present disclosure, the outer periphery of the eccentric member further includes a third outer peripheral surface, the third outer peripheral surface being connected to the first outer peripheral surface and the second outer peripheral surface.

[0021] According to at least one embodiment of the adjustment unit of this disclosure, the third outer peripheral surface includes a plane, and the second outer peripheral surface includes a semi-circular surface.

[0022] The adjustment unit according to at least one embodiment of the present disclosure further includes: A support plate configured to support the rotation of the transmission member.

[0023] According to at least one embodiment of the adjustment unit of this disclosure, the power source assembly includes a drive device, and on a plane extending vertically in the vertical direction and passing through the output shaft axis of the drive device, the projection of the eccentric member is at least partially located within the projection range of the drive device.

[0024] According to another aspect of this disclosure, a portable cleaner is provided, which includes the aforementioned adjustment unit. Attached Figure Description

[0025] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0026] Figure 1 This is a structural schematic diagram of a portable cleaner according to one embodiment of the present disclosure.

[0027] Figure 2 This is a structural schematic diagram of a portable cleaner according to one embodiment of the present disclosure from another angle.

[0028] Figure 3 This is a schematic diagram of the structure of a brush roller assembly and a chassis assembly according to one embodiment of the present disclosure.

[0029] Figure 4 This is a schematic diagram of the structure of a trigger according to one embodiment of the present disclosure.

[0030] Figure 5 This is a schematic diagram of the interaction between a brush roller assembly and a trigger according to one embodiment of the present disclosure.

[0031] Figure 6 This is a schematic diagram of the structure of a brush roller assembly according to one embodiment of the present disclosure.

[0032] Figure 7 This is a structural schematic diagram of a brush roller assembly according to one embodiment of the present disclosure from another angle.

[0033] Figure 8 This is a schematic diagram of the structure of a gear unit according to one embodiment of the present disclosure.

[0034] Figure 9 This is a schematic diagram of the structure of an adjustment unit according to one embodiment of the present disclosure.

[0035] Figure 10 This is a schematic diagram of the clutch device according to one embodiment of the present disclosure.

[0036] Figure 11 This is a schematic diagram of the structure of a third gear according to one embodiment of the present disclosure.

[0037] Figure 12 This is a schematic diagram of the structure of a second clutch component according to one embodiment of the present disclosure.

[0038] Figure 13 This is a schematic diagram of the structure of an eccentric wheel according to one embodiment of the present disclosure.

[0039] Figure 14 This is a schematic diagram of the structure of an adjustment unit according to another embodiment of the present disclosure.

[0040] Figure 15 This is a structural schematic diagram of the adjustment unit according to another embodiment of the present disclosure from another angle. Detailed Implementation

[0041] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0042] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0044] Figure 1 This is a structural schematic diagram of a portable cleaner according to one embodiment of the present disclosure. Figure 2 This is a structural schematic diagram of a portable cleaner according to one embodiment of the present disclosure from another angle.

[0045] The self-moving cleaning robot disclosed herein can be a sweeping robot, a mopping robot, or a sweeping and mopping robot, etc.

[0046] by Figure 1 and Figure 2 Taking the self-moving cleaning robot shown as an example, let's consider the robot's forward direction as "forward". Figure 2 The view orientation is such that the self-moving cleaning robot's forward direction is upward to one side. The direction opposite to the self-moving cleaning robot's forward direction is backward. (Refer to...) Figure 2 The view direction from behind the mobile cleaning robot refers to the side below. Correspondingly, the direction perpendicular to the front-back direction can be defined as the left-right direction.

[0047] When the self-moving cleaning robot is working, it can move on a roughly horizontal surface to be cleaned. In this case, the direction perpendicular to the surface to be cleaned is the vertical direction (hereinafter referred to as the vertical direction).

[0048] The self-moving cleaning robot may include a chassis assembly 100, which can be formed as the body of the self-moving cleaning robot; In this disclosure, the chassis assembly 100 is further provided with a side brush assembly 200, wherein the side brush assembly 200 can be configured as one or two; Figure 2 In the implementation shown, the side brush assembly 200 is configured as one, and the side brush assembly 200 is positioned on the right side of the front end of the chassis assembly 100; thereby, by rotating the side brush assembly 200, dirt on the surface to be cleaned can be disturbed, and the surface to be cleaned can be cleaned.

[0049] In addition, a brush roller assembly 300 is also provided on the chassis assembly 100. The brush roller assembly 300 is located at the middle position in the front-rear direction of the chassis assembly 100, and its length direction is the width direction of the chassis assembly 100. Thus, the brush roller assembly 300 can agitate the dirt on the surface to be cleaned. This dirt can be sucked into a dust box or other device by negative pressure adsorption, and the solid particles are separated in the dust box or other device, thereby realizing the cleaning operation of the surface to be cleaned.

[0050] The bottom of the chassis assembly 100 is provided with an auxiliary wheel assembly 400 and a walking wheel assembly 500. The auxiliary wheel assembly 400 can cooperate with the walking wheel assembly 500 to enable the self-moving cleaning robot to walk and turn.

[0051] In this disclosure, the cleaning component 600 is rotatably connected to the bottom of the chassis component 100, and is located at the rear of the chassis component 100.

[0052] Figure 3 This is a schematic diagram of the structure of a brush roller assembly and a chassis assembly according to one embodiment of the present disclosure. Figure 4 This is a schematic diagram of the structure of a trigger according to one embodiment of the present disclosure. Figure 5 This is a schematic diagram of the interaction between a brush roller assembly and a trigger according to one embodiment of the present disclosure.

[0053] The chassis assembly 100 of this disclosure has a planar portion 110 formed thereon, the planar portion 110 including a horizontally extending surface, that is, the planar portion is formed as a generally horizontal surface.

[0054] Furthermore, the chassis assembly 100 of this disclosure is also provided with a downward-facing open cavity, in which the brush roller assembly 300 is movably disposed. Specifically, the movement of the brush roller assembly 300 enables at least a portion of the brush roller assembly 300 (e.g., brush roller component 312) to rise or fall. Thus, when the brush roller component 312 rises to its maximum lift (i.e., the maximum position in the upward direction), it can move away from the surface to be cleaned, allowing the portable cleaner to pass smoothly over surfaces such as carpets. When the brush roller component 312 falls to its minimum lift (i.e., the minimum position in the downward direction), it can contact the surface to be cleaned and clean it.

[0055] Figure 6 This is a schematic diagram of the structure of a brush roller assembly according to one embodiment of the present disclosure. Figure 7 This is a structural schematic diagram of a brush roller assembly according to one embodiment of the present disclosure from another angle.

[0056] The brush roller assembly 300 may include components such as a brush roller unit 310, a drive device 320, an adjustment unit 330, and a gear unit 340.

[0057] Specifically, the brush roller unit 310 of this disclosure includes components such as a housing portion 311 and a brush roller assembly 312. The housing portion 311 forms the basis for arranging other components of the brush roller assembly 300, and includes a guide member 311A. The guide member 311A ​​guides the movement of the brush roller unit 310 relative to the chassis assembly 100. In other words, the guide member 311A ​​can guide the movement of the brush roller unit 310 towards or away from the surface to be cleaned.

[0058] In this disclosure, the guide 311A ​​is coupled to the chassis assembly 100. Specifically, the guide 311A ​​is formed as an arm member, the free end of which is pivotally connected to the chassis assembly 100. Moreover, the pivot axis of the arm member relative to the chassis assembly 100 is parallel to the surface to be cleaned, thereby allowing the brush roller unit 310 to swing relative to the chassis assembly 100. Consequently, the brush roller unit 310 can maintain different distances from the surface to be cleaned, thus achieving the effect of raising and lowering the brush roller unit 310.

[0059] Although not shown in the accompanying drawings of this disclosure, those skilled in the art will recognize that the guide 311A ​​can also be configured to be slidably connected to the chassis assembly 100, thereby allowing the brush roller unit 310 to approach or move away from the surface to be cleaned by sliding the guide 311A ​​relative to the chassis assembly 100.

[0060] The housing portion 311 of this disclosure has a receiving cavity with an opening. Similar to the prior art, the opening faces downwards, i.e., towards the surface to be cleaned. Based on this, the brush roller component 312 of this disclosure is rotatably disposed in the housing portion 311. Correspondingly, a portion of the brush roller component 312 is located within the receiving cavity, i.e., within the opening of the housing portion 311. At this time, a portion of the brush roller component 312 can be located outside the opening. When the mobile cleaner is in operation, the contact between the brush roller component 312, located outside the opening, and the surface to be cleaned agitates dust and dirt on the surface, thereby achieving cleaning of the surface.

[0061] The drive device 320 disclosed herein is disposed in the housing portion 311 of the brush roller unit 310 and is used to drive the brush roller component 312 to rotate. In one specific embodiment, the drive device 320 may be a motor. In addition, the drive device 320 is disposed outside the housing portion 311, thereby preventing dust agitated by the brush roller component 312 from accumulating on the drive device 320, thus improving the service life of the drive device 320.

[0062] An adjustment unit 330 is disposed on the brush roller unit 310 and configured to drive the brush roller unit 310 to move in a direction perpendicular to the surface to be cleaned. In other words, the adjustment unit 330 can adjust the position of the brush roller unit 310 so that the brush roller unit 310 approaches or moves away from the surface to be cleaned.

[0063] The gear unit 340 of this disclosure is configured to transmit the torque of the drive device 320 to the adjustment unit 330 and the brush roller component 312 of the brush roller unit 310, respectively. That is, the gear unit 340 of this disclosure plays a role in power transmission. Specifically, the gear unit 340 is coupled to the adjustment unit 330 through at least one clutch device 350 so as to: maintain the torque transmission from the drive device 320 to the adjustment unit 330 when the drive device 320 outputs torque in a first direction (i.e., the drive device 320 rotates in the first direction); and disengage the torque transmission from the drive device 320 to the adjustment unit 330 when the drive device 320 outputs torque in a second direction (i.e., the drive device 320 rotates in the second direction).

[0064] When the portable cleaner is in operation, under normal circumstances, the drive unit 320 rotates in the second direction, and its torque is not transmitted to the adjustment unit 330. When it is necessary to raise the brush roller unit 310, the drive unit 320 can be controlled to rotate in the first direction. At this time, the torque of the drive unit 320 can be transmitted to the adjustment unit 330, and the brush roller unit 310 is raised through the adjustment unit 330. After the brush roller unit 310 rises to the predetermined position, the drive unit 320 can be controlled to stop rotating, and the brush roller unit 310 will be in a non-working state. In other words, since the brush roller unit 310 has left the surface to be cleaned, it can no longer clean the surface even if it is rotating.

[0065] When the brush roller unit 310 needs to descend, the drive device 320 can be controlled to continue rotating in the first direction. At this time, the torque of the drive device 320 can be transmitted to the adjustment unit 330, and the descent of the brush roller unit 310 is achieved through the adjustment unit 330. After the brush roller unit 310 descends to the preset position, the drive device 320 can be controlled to rotate in the second direction. At this time, the power between the drive device 320 and the adjustment unit 330 will be cut off, and the drive device 320 will transmit torque only to the brush roller component 312, thereby achieving the rotation of the brush roller component 312.

[0066] Figure 8 This is a schematic diagram of the structure of a gear unit according to one embodiment of the present disclosure. Figure 9 This is a schematic diagram of the structure of an adjustment unit according to one embodiment of the present disclosure.

[0067] The gear unit 340 is connected to the drive unit 320. The gear unit 340 is configured to transmit the torque in the first direction of the drive unit 320 to the brush roller component 312 and the adjustment unit 330 when the drive unit 320 outputs torque in the first direction, so as to drive the brush roller component 312 to rotate and simultaneously drive the adjustment unit 330 to adjust the distance between the brush roller component 312 and the surface to be cleaned. When the drive unit 320 outputs torque in the second direction, the gear unit 340 transmits the torque in the second direction of the drive unit 320 to the brush roller component 312 to drive the brush roller component 312 to rotate. At this time, the torque in the second direction of the drive unit 320 is not transmitted to the adjustment unit 330, and correspondingly, the distance between the brush roller component 312 and the surface to be cleaned is not adjusted.

[0068] The gear unit 340 disclosed herein includes a first gear train and a second gear train. The first gear train is disposed between the output shaft of the drive device 320 and the brush roller component 312 for transmitting power from the drive device 320 to the brush roller component 312 to actuate the brush roller component 312. The second gear train is disposed between the output shaft of the drive device 320 and the adjustment unit 330 for transmitting power from the drive device 320 to the adjustment unit 330. In other words, the first gear train of this disclosure is disposed between the output shaft of the drive unit 320 of the mobile cleaner and the brush roller unit 310 of the mobile cleaner for transmitting power from the drive unit 320 to the brush roller component 312 of the brush roller unit 310 to actuate the brush roller component 312; the second gear train is disposed between the output shaft of the drive unit 320 and the adjustment unit 330 of the mobile cleaner for selectively transmitting power from the drive unit 320 to the adjustment unit 330 of the mobile cleaner to activate the adjustment unit 330, the adjustment unit 330 being configured to adjust the distance between the brush roller unit 310 and the surface to be cleaned when activated.

[0069] Specifically, in one embodiment, the first gear train and the second gear train of this disclosure can be configured as independent transmission devices. That is, both the first gear train and the second gear train can be independently connected to the drive gear mounted on the output shaft of the drive device 320.

[0070] In another embodiment, the first gear train and the second gear train may have at least one shared gear. Alternatively, the second gear train can be considered to be drive-connected to an intermediate gear of the first gear train, thereby allowing the torque of the drive unit 320 to be transmitted to both the first and second gear trains. Correspondingly, this torque can be transmitted to the brush roller component 312 via the first gear train. This arrangement reduces the total number of gears in both the first and second gear trains, thereby reducing the manufacturing cost of the mobile cleaner.

[0071] The intermediate gear disclosed herein refers to the gear located in the middle position in the second gear train. This intermediate gear may also be referred to as the common gear (shared gear) of the first gear train and the second gear train.

[0072] In one specific embodiment, the gear unit 340 includes components such as a first gear 341, a second gear 342, a third gear 343, and an intermediate gear 344.

[0073] The first gear 341 is disposed on the output shaft of the drive device 320 and is formed as a driving gear; the second gear 342 is disposed on the rotating shaft of the brush roller component 312 and is formed as a driven gear, thereby transmitting driving force to the brush roller component 312 through the second gear 342; the third gear 343 is connected to the adjustment unit 330 for transmission; thereby transmitting torque to the adjustment unit 330 through the third gear 343.

[0074] The first gear 341, the second gear 342, and the third gear 343 are all drive-connected to the intermediate gear 344. Thus, the drive unit 320 of this disclosure first transmits power to the intermediate gear 344, and then distributes the power through the intermediate gear 344 to the second gear 342 and the third gear 343. This power is further supplied to the brush roller assembly 312 and the adjustment unit 330. Accordingly, the gear unit 340 of this disclosure has a simpler structure and a lower failure rate.

[0075] The gear unit 340 also includes a coaxial reduction gear 345, which includes a lower gear and an upper gear coaxially and integrally supported thereon. The lower gear meshes with the first gear 341, and the upper gear meshes with the intermediate gear 344. In other words, the coaxial reduction gear 345 of this disclosure forms a power transmission gear, and the number of teeth on the lower gear can be greater than the number of teeth on the upper gear, thereby the gear unit 340 of this disclosure has a certain speed reduction and torque increase effect.

[0076] The gear unit 340 includes a fourth gear 346, which meshes with both an intermediate gear 344 and a third gear 343. A second gear 342 meshes with the intermediate gear 344. Thus, through this arrangement of gears, the gear unit of this disclosure can achieve the required function while maintaining a small size.

[0077] Figure 10 This is a schematic diagram of the clutch device according to one embodiment of the present disclosure. Figure 11 This is a schematic diagram of the structure of a third gear according to one embodiment of the present disclosure. Figure 12 This is a schematic diagram of the structure of a second clutch component according to one embodiment of the present disclosure.

[0078] In one embodiment of this disclosure, the second gear train includes a clutch device 350, which is configured to cut off the power transmitted from the drive device 320 to the adjustment unit 330 when the drive device 320 outputs torque in a second direction, and to restore the power transmitted from the drive device 320 to the adjustment unit 330 when the torque output in the second direction by the drive device 320 changes to torque in a first direction.

[0079] Of course, the clutch device of this disclosure may not be part of the second gear train. In this case, it can be considered that a clutch device 350 is provided in the second gear train. The clutch device 350 is configured to open or close the transmission of the second gear train according to the rotation direction of the output shaft of the drive device 320.

[0080] Positionally, the clutch 350 is located downstream of the intermediate gear 344 and upstream of the adjustment unit 330; or, the clutch 350 is located downstream of the second gear train and upstream of the adjustment unit 330.

[0081] In one specific embodiment, the clutch device 350 includes an axial clutch, through which automatic power transmission and interruption can be achieved. Specifically, the clutch device 350 of this disclosure can achieve the engagement and disengagement of power transmission between the drive device 320 and the adjustment unit 330 without the application of an electrical signal. Accordingly, the mobile cleaner of this disclosure has a relatively simple structure and can be easily controlled.

[0082] Positionally, the clutch device 350 of this disclosure is located downstream of the second gear train and upstream of the regulating unit 330. More specifically, the clutch device 350 is located in the second gear train, and when the drive device 320 outputs torque in the second direction, the clutch closes the power transmission of the second gear train to cut off the power from the drive device 320 to the regulating unit 330; and when the drive device 320 outputs torque in the first direction, the clutch opens the power transmission of the second gear train to transmit power from the drive device 320 to the regulating unit 330.

[0083] Specifically, such as Figures 11 to 13 As shown, the clutch device 350 includes a disc-shaped clutch gear 351 located in the second gear train (the disc-shaped clutch gear 351 can be considered as the third gear 343 mentioned above). The disc-shaped clutch gear 351 includes an upper disc gear 351A and a first clutch component 351B that are coaxially and integrally supported, and a second clutch component 352 adapted to rotatably engage with the first clutch component 351B. The upper disc gear 351A is configured to mesh directly or indirectly with the drive device 320, and the second clutch component 352 is configured to be connected to the input end of the power input shaft 331 of the adjustment unit 330.

[0084] In this disclosure, the power input shaft 331 of the adjusting unit 330 is rotatably disposed on the housing portion 311 and has an input end and an output end. The second clutch component 352 is drive-connected to the input end of the power input shaft 331, that is, the second clutch component 352 can rotate synchronously with the power input shaft 331. In a preferred embodiment, the second clutch component 352 can be drive-connected to the power input shaft 331 via a coupling.

[0085] In a preferred embodiment, the second clutch component 352 is not fixed to the coupling, but is capable of axial displacement relative to the coupling. This axial displacement of the second clutch component 352 causes the first clutch component 351B and the second clutch component 352 to separate and engage. Although not shown in the drawings, those skilled in the art will recognize that the first clutch component 351B can also undergo axial displacement, causing the first clutch component 351B and the second clutch component 352 to separate and engage.

[0086] For example, the spring force can cause the second clutch component 352 to have a tendency to move closer to the first clutch component 351B, so that the second clutch component 352 and the first clutch component 351B can be pressed tightly against each other, so that the first clutch component 351B and the second clutch component 352 can be separated and engaged.

[0087] Specifically, the first clutch component 351B includes a first sloped gradually tapered protrusion 351B1, and the second clutch component 352 includes a second sloped gradually tapered protrusion 352B. The first sloped gradually tapered protrusion 351B1 and the second sloped gradually tapered protrusion 352B are configured such that when the drive device 320 rotates in a first direction, the two are locked together to axially couple the first clutch component 351B and the second clutch component 352 together; or, when the drive device 320 rotates in a second direction, the two are unlocked to axially separate the first clutch component 351B and the second clutch component 352 to decouple them.

[0088] The first sloping, gradually tapered protrusion 351B1 includes a first mating surface 351B2, and the second sloping, gradually tapered protrusion 352B includes a second mating surface 352B2. When the first clutch component 351B and the second clutch component 352 are coupled together, the first mating surface 351B2 and the second mating surface 352B2 are in contact with each other. When the first clutch component 351B and the second clutch component 352 are axially separated, the first mating surface 351B2 and the second mating surface 352B2 are separated from each other. In a specific embodiment, both the first mating surface 351B2 and the second mating surface 352B2 are surfaces parallel to the axis of the clutch device, thereby achieving stable power transmission between the first clutch component 351B and the second clutch component 352 through the engagement of the first mating surface 351B2 and the second mating surface 352B2.

[0089] Based on the above structure, the clutch device 350 of this disclosure can be easily controlled and will not be easily damaged.

[0090] In this disclosure, the sum of the maximum axial heights of the first sloping gradually tapered protrusion 351B1 and the second sloping gradually tapered protrusion 352B determines the maximum axial separation distance of the first clutch component 351B and the second clutch component 352. That is, the distance between the first clutch component 351B and the second clutch component 352 should not be too large; otherwise, the brush roller unit 310 may have a longer preparation time during lifting and lowering, meaning the entire mobile cleaner will not react quickly enough.

[0091] The first sloping, gradually tapered protrusion 351B1 and the second sloping, gradually tapered protrusion 352B extend in the circumferential direction to allow the first clutch component 351B and the second clutch component 352 to rotate relative to each other. In other words, when the drive unit 320 rotates in the second direction, the first clutch component 351B and the second clutch component 352 can generate relative motion. At this time, the second clutch component 352 can be in a stationary state, which can push the first clutch component 351B to move in a direction away from the second clutch component 352, so that the first clutch component 351B and the second clutch component 352 can disengage as quickly as possible.

[0092] The second clutch component 352 is detachably disposed in the adjustment unit 330. Thus, when the second clutch component 352 of this disclosure is damaged, the component can be quickly replaced.

[0093] Generally speaking, when the drive unit 320 outputs torque in the second direction, the first clutch component 351B and the second clutch component 352 decouple to cut off the power; when the drive unit 320 outputs torque in the first direction, the first clutch component 351B and the second clutch component 352 couple to transmit power.

[0094] Figure 13 This is a schematic diagram of the structure of an eccentric wheel according to one embodiment of the present disclosure.

[0095] The adjustment unit 330 disclosed herein can be used in a mobile cleaner that includes a brush roller unit 310. The adjustment unit 330 is used to change the position of the brush roller unit 310 in the vertical direction, so that the brush roller unit 310 can approach or move away from the surface to be cleaned.

[0096] In one specific embodiment, the adjustment unit 330 includes components such as a power input shaft 331, a worm gear 332, a transmission assembly 333, and an eccentric wheel 334.

[0097] The power input shaft 331 is mounted on the brush roller unit 310. For example, the power input shaft 331 is rotatably disposed on the housing portion 311 of the brush roller unit 310. The output end of the power input shaft 331 is configured to be driven so that the entire power input shaft 331 rotates on the brush roller unit 310 about its central axis (rotation axis); specifically, the power input shaft 331 of this disclosure can be driven by the torque transmitted by the clutch device 350 and can rotate relative to the brush roller unit 310.

[0098] The worm gear portion 332 is disposed on the portion other than the input end of the power input shaft 331. In a specific embodiment, the worm gear portion 332 is disposed on the output end of the power input shaft 331.

[0099] The transmission assembly 333 is rotatably disposed on the brush roller unit 310 and is configured to mesh with the worm gear portion 332; the eccentric wheel 334 is connected to the output shaft of the transmission assembly 333, is configured to be fixed relative to the output shaft, and is configured to slidably abut against the chassis assembly 100 of the mobile cleaner when rotating; wherein, during the rotation of the power input shaft 331, the eccentric wheel 334 undergoes a rotational change from 0 to at least 180° to change the lift (height) of the brush roller component 312 relative to the chassis assembly 100 of the mobile cleaner.

[0100] The eccentric wheel 334 includes a rotation axis, which is the same as the rotation axis of the output shaft of the transmission assembly 333, so that the eccentric wheel 334 can rotate synchronously with the output shaft of the transmission assembly 333.

[0101] In a preferred embodiment, the vertical distance between the rotation axis of the eccentric wheel 334 and the outer periphery of the eccentric wheel 334 is between 5 mm and 12 mm. That is, the central axis of the eccentric wheel 334 can be at different distances from different areas of the outer periphery. Thus, when different areas of the outer periphery of the eccentric wheel 334 come into contact with the planar portion 110 of the chassis assembly 100, the axis of the eccentric wheel 334 is at different distances from the planar portion 110 of the chassis assembly 100, thereby making the brush roller component 312 at different distances relative to the surface to be cleaned.

[0102] In this disclosure, the vertical distance between the rotation axis of the eccentric wheel 334 and its outer circumference changes linearly. Therefore, during rotation, the linear change in the outer circumference of the eccentric wheel 334 allows for gradual adjustment of the height of the brush roller component 312. Consequently, the height of the brush roller component 312 does not change abruptly during height adjustment.

[0103] The projection of the eccentric wheel 334 onto a plane perpendicular to the axis of rotation is approximately elliptical. Therefore, one rotation of the eccentric wheel 334 allows the brush roller assembly 312 to complete a cycle from its lowest position to its highest position and back to its lowest position. This allows for convenient control of the height of the brush roller assembly 312 during use of the mobile cleaner. In other words, the eccentric wheel 334 can rotate one full turn, from 0° to 360°.

[0104] In one specific embodiment, at least a first outer peripheral segment 334A and a second outer peripheral segment 334B are defined on the outer periphery of the eccentric wheel 334. The first outer peripheral segment 334A is at the largest distance from the rotation axis, and the second outer peripheral segment 334B is at the smallest distance from the rotation axis. Additionally, at least a third outer peripheral segment 334C is defined on the outer periphery of the eccentric wheel 334. The third outer peripheral segment 334C is located between the first outer peripheral segment 334A and the second outer peripheral segment 334B, and the distance of the third outer peripheral segment 334C from the rotation axis is between the distances of the first outer peripheral segment 334A and the second outer peripheral segment 334B from the rotation axis.

[0105] by Figure 3 In the indicated state, the distance between the eccentric wheel 334 and the planar portion 110 of the chassis assembly 100 is approximately equal to the minimum perpendicular distance between the rotation axis of the eccentric wheel 334 and the outer circumference of the eccentric wheel 334, which is 5 mm. In other words, the second outer circumferential segment 334B is in contact with the planar portion 110. At this point, the brush roller component 312 has its minimum lift (minimum distance) with the surface to be cleaned, and correspondingly, the brush roller component 312 is in a downward cleaning state. In other words, there is maximum positive pressure between the brush roller component 312 and the surface to be cleaned.

[0106] Specifically, the eccentric wheel 334 can be positioned above the planar portion 110 of the chassis assembly 100. In this case, the brush roller unit 310 can be subjected to a downward force by the spring-loaded component. When the positive pressure between the eccentric wheel 334 and the planar portion 110 can overcome the spring force, the brush roller unit 310 (i.e., the brush roller component 312) will move away from the surface to be cleaned. Conversely, when the eccentric wheel 334 moves to the position of gradually releasing the brush roller unit 310, the brush roller unit 310 will move downward under the action of the spring force to contact the surface to be cleaned, and may even make pressure contact with the surface to be cleaned.

[0107] according to Figure 3 As shown, when the eccentric wheel 334 rotates, different areas of its outer periphery will make pressure contact with the planar portion 110. When the eccentric wheel 334 moves to the point where the first outer periphery section 334A contacts the planar portion 110, the brush roller unit 310 (i.e., the brush roller component 312) will move to the maximum position in the upward direction (i.e., the maximum lift). At this time, the brush roller component 312 will have the maximum lift (i.e., the maximum distance) with the surface to be cleaned, and correspondingly, the brush roller component 312 will be in a suspended state.

[0108] When the eccentric wheel 334 moves to the point where the third outer peripheral section 334C contacts the flat portion 110, the brush roller unit 310 (i.e., the brush roller component 312) moves to the position corresponding to the middle stroke (i.e., the middle position) between the maximum stroke and the minimum stroke. At this time, the brush roller component 312 can contact the surface to be cleaned and clean the surface to be cleaned.

[0109] When the brush roller unit 310 is in the middle lift position, there is a first positive pressure between the brush roller component 312 and the surface to be cleaned; when the brush roller unit 310 is in the minimum lift position, there is a second positive pressure between the brush roller component 312 and the surface to be cleaned, and the first positive pressure is less than the second positive pressure.

[0110] In other words, the brush roller unit 310 at the middle lift can perform normal cleaning operations on the surface to be cleaned, while the brush roller unit 310 at the minimum lift can perform pressure cleaning operations on the surface to be cleaned, thereby removing stubborn stains on the surface to be cleaned through pressure cleaning operations.

[0111] Considering that the brush roller component 312 is a roller brush, when the brush roller unit 310 is in the middle lift position, there is a first interference depth between the brush roller component 312 and the surface to be cleaned; when the brush roller unit 310 is in the minimum lift position, there is a second interference depth between the brush roller component 312 and the surface to be cleaned, and the first interference depth is less than the second interference depth.

[0112] When either the first outer peripheral section 334A or the second outer peripheral section 334B is configured to abut against the chassis assembly 100 of the mobile cleaner, the eccentric wheel 334 can trigger the controller of the mobile cleaner to stop driving the input end of the power input shaft 331. Thus, in use, each action of the adjustment unit 330 of the mobile cleaner of this disclosure can only change the position of the brush roller component 312, without causing a cyclical change in the position of the brush roller component 312.

[0113] Specifically, when the brush roller component 312 is at its lowest position and needs to be raised, the eccentric wheel 334 rotates, and the first outer peripheral section 334A will abut against the flat part of the chassis assembly 100. At this time, the drive device 320 will stop providing torque to the adjustment unit 330, and the brush roller component 312 will be able to be stably maintained at the highest lift.

[0114] Furthermore, when the brush roller component 312 is at its highest lift, it cannot contact the surface to be cleaned. In this case, even if the brush roller component 312 rotates, it cannot clean the surface. Therefore, in this situation, the power supply to the drive unit 320 can be disconnected, i.e., the drive unit 320 can be controlled to stop rotating.

[0115] In another scenario, when the brush roller assembly 312 is at its highest position and needs to be lowered, the eccentric wheel 334 rotates, at which point the second outer peripheral section 334B or the third outer peripheral section 334C will abut against the planar portion of the chassis assembly 100. At this point, the drive device 320 stops providing torque to the adjustment unit 330, thus keeping the brush roller assembly 312 stably in the middle or minimum position.

[0116] That is, when the third outer peripheral section 334C is configured to abut against the chassis assembly 100 of the mobile cleaner, it triggers the trigger of the mobile cleaner to stop the drive to the input end of the power input shaft 331.

[0117] When the brush roller component 312 is in the middle or minimum position, it can contact the surface to be cleaned. At this time, the rotation direction of the drive device 320 changes, that is, it switches from rotating along the first direction to rotating along the second direction. Thus, the power output to the adjustment unit 330 can be disconnected, while the power output to the brush roller component 312 can be maintained, so that the brush roller component 312 can rotate continuously.

[0118] At least one of the first outer peripheral segment 334A and the second outer peripheral segment 334B includes a planar or near-planar curved surface. In a preferred embodiment, the third outer peripheral segment 334C is a planar or near-planar curved surface. Thus, when the first outer peripheral segment 334A, the second outer peripheral segment 334B, or the third outer peripheral segment 334C abuts against the planar portion 110, the eccentric wheel 334 is prevented from being driven to rotate by the force exerted on the eccentric wheel 334 by the planar portion 110 through the cooperation of the planar surfaces. As a result, the brush roller component 312 can be stably maintained at the maximum lift, minimum lift, or intermediate lift.

[0119] In another embodiment, the brush roller component 312 can also be stably maintained at its maximum lift, minimum lift, or intermediate lift through the self-locking of the worm gear portion 332. In other words, the connection between the worm gear portion 332 and the transmission assembly 333 is a self-locking connection, meaning that the worm gear portion 332 can drive the transmission assembly 333 to rotate, but the transmission assembly 333 cannot drive the worm gear portion 332 to rotate in the opposite direction.

[0120] In one specific embodiment, the transmission assembly 333 includes a first transmission gear 333A and a second transmission gear 333B. The first transmission gear 333A is configured to mesh with the worm gear portion 332, the second transmission gear 333B is connected to the first transmission gear 333A, and the eccentric wheel 334 is fixedly connected to the second transmission gear 333B.

[0121] The first transmission gear 333A includes an upper transmission gear and a lower transmission gear that are coaxially and integrally supported. The outer diameter of the upper transmission gear is larger than that of the lower transmission gear, and correspondingly, the number of teeth of the upper transmission gear is also larger than that of the lower transmission gear. The upper transmission gear is configured to mesh with the worm gear portion 332, and the lower transmission gear is configured to mesh with the second transmission gear 333B.

[0122] The outer diameter of the upper transmission gear is basically the same as the outer diameter of the second transmission gear 333B. Correspondingly, the number of teeth of the upper transmission gear is also basically the same as the number of teeth of the second transmission gear 333B. Thus, the upper transmission gear and the second transmission gear 333B can be arranged in a partially overlapping manner. Accordingly, the transmission component 333 of this disclosure only needs to occupy a small space to complete the arrangement.

[0123] Figure 14 This is a schematic diagram of the structure of an adjustment unit according to another embodiment of the present disclosure. Figure 15 This is a structural schematic diagram of the adjustment unit according to another embodiment of the present disclosure from another angle.

[0124] like Figure 14 and Figure 15As shown, the adjustment unit 330 in this embodiment and the adjustment unit 330 in the above embodiment both achieve the position adjustment of the brush roller unit 310 through the cam principle. However, the difference between the adjustment unit 330 in this embodiment and the adjustment unit 330 in the above embodiment is that the adjustment unit 330 in this embodiment does not include a transmission component.

[0125] Specifically, the adjustment unit 330 of this disclosure includes only a power input shaft 331, an eccentric member 335, and a transmission member 337. The power input shaft 331 has the same structure as the power input shaft 331 in the above embodiment, but its length is different. Functionally, the power input shaft 331 receives the rotational torque output by the power source assembly and rotates around its rotation axis. The power source assembly may include the aforementioned drive device 320, meaning that the drive device 320 is capable of driving the power input shaft 331 to rotate.

[0126] The transmission member 337 is rotatably disposed in the brush roller unit 310 and is configured to mesh with the worm portion 332. That is, when the worm portion 332 of this disclosure rotates, it can drive the transmission member 337 to rotate. In a specific embodiment, the rotation axis of the worm portion 332 is perpendicular to the rotation axis of the transmission member 337.

[0127] The transmission component 337 disclosed herein can be a worm gear or a gear, as long as the worm gear or gear can mesh with the worm portion 332.

[0128] The eccentric member 335 is connected to the transmission member 337 and is configured to be fixed relative to the rotation axis of the transmission member 337, and is configured to slidably abut against the chassis assembly 100 of the mobile cleaner when rotating; the eccentric member 335 is configured to rotate during the rotation of the power input shaft 331 to change the lift of the brush roller member 312 relative to the chassis assembly 100 of the mobile cleaner.

[0129] The eccentric member 335 disclosed herein can be disposed on one end face of the transmission member 337. In a preferred embodiment, the eccentric member 335 can be integrally formed with the transmission member 337.

[0130] Based on the structure of this disclosure, when the power input shaft 331 transmits power to the eccentric member 335, the shorter length of the power input shaft 331 reduces ineffective torque, improves transmission efficiency, and enhances system stability. Furthermore, by providing a shorter power input shaft 331, the adjustment unit 330 is smaller in size and can be easily installed in a mobile cleaner.

[0131] The adjustment unit 330 of this disclosure also includes a support plate 336 for supporting the rotation of the transmission member 337. In other words, the transmission member 337 is rotatably mounted on the support plate 336, which can be fixedly mounted on the housing portion 311.

[0132] In some embodiments, the drive device 320 is disposed at one end near the adjustment unit 330. Specifically, one end of the adjustment unit 330 is the end near the gear unit 340, and the drive device 320 is disposed at the end near the adjustment unit 330, which is also the end near the gear unit 340, thereby enabling the drive device 320 of this disclosure to be conveniently connected to the gear unit 340 for transmission.

[0133] In this disclosure, the worm gear portion 332 is located within the extended length of the drive device 320 along the length direction of the adjustment unit 330. Therefore, the worm gear portion 332, the transmission member 337, and the eccentric member 335 are all located to the side of the drive device 320, and correspondingly, these components can be tightly integrated together. In other words, in the embodiments of this disclosure, the power source assembly includes the drive device 320, and on the plane extending vertically and passing through the output shaft axis of the drive device 320, the projection of the eccentric member 335 is at least partially located within the projection range of the drive device 320.

[0134] Similar to the embodiments described above, the vertical distance between the rotation axis of the eccentric member 335 and the outer periphery of the eccentric member 335 is between 5 mm and 12 mm, thereby enabling the eccentric member 335 to adapt to the vertical movement stroke of the brush roller unit 310. Those skilled in the art should understand that this vertical distance is related to the vertical movement stroke of the brush roller unit 310, and can be adjusted accordingly.

[0135] The vertical distance between the rotation axis of the eccentric member 335 and its outer periphery varies non-linearly. In other words, in this embodiment, the outer contour of the eccentric member 335 can be modified to ensure that parameters such as the movement speed of the brush roller unit 310 meet design requirements. In a specific embodiment, the projection of the eccentric member 335 onto a plane perpendicular to the rotation axis is approximately teardrop-shaped.

[0136] Specifically, the outer periphery of the eccentric member 335 is defined by at least a first outer peripheral surface 335A, a second outer peripheral surface 335B, and a third outer peripheral surface 335C, wherein there is one first outer peripheral surface 335A, one second outer peripheral surface 335B, and two third outer peripheral surfaces 335C.

[0137] The first outer peripheral surface 335A is at its maximum distance from the rotation axis, and the second outer peripheral surface 335B is at its minimum distance from the rotation axis. Therefore, when the first outer peripheral surface 335A contacts the planar portion 110, the brush roller unit 310 is in the raised position (i.e., the highest position). When the second outer peripheral surface 335B contacts the planar portion 110, the brush roller unit 310 is in the lowered position (i.e., the lowest position).

[0138] like Figure 14 and Figure 15 As shown, the first outer peripheral surface 335A and the second outer peripheral surface 335B are disposed opposite to each other on the eccentric member 335. Preferably, at least one of the first outer peripheral surface 335A and the second outer peripheral surface 335B includes a curved surface or an arc surface, thereby enabling the brush roller unit 310 to be stably in a raised or lowered position when the first outer peripheral surface 335A and the second outer peripheral surface 335B of this disclosure are in contact with the planar portion 110.

[0139] In this disclosure, the third outer peripheral surface 335C connects the first outer peripheral surface 335A and the second outer peripheral surface 335B. In one embodiment, the third outer peripheral surface 335C includes a plane, and the second outer peripheral surface 335B includes a semicircular surface, thereby enabling the eccentric member 335 of this disclosure to be easily manufactured.

[0140] When the first outer peripheral surface 335A or the second outer peripheral surface 335B abuts against the chassis assembly of the mobile cleaner, the eccentric member 335 can trigger the trigger of the mobile cleaner to cut off the torque transmitted from the power input shaft 331 to the eccentric member 335. For example, a Hall sensor can be provided on the support plate of this disclosure, and a magnet can be provided on the eccentric member 335, so that the position detection of the eccentric member 335 can be realized by activating the Hall sensor through the magnet. When the eccentric member 335 is in the desired position, the Hall sensor transmits information to the controller, so that the power input shaft 331 no longer transmits torque to the eccentric member 335, so that the brush roller unit can be stably stopped in the desired position.

[0141] The eccentric component 335 of this disclosure rotates unidirectionally about the rotation axis. Accordingly, one rotation completes one cycle. During this cycle, the brush roller assembly can complete the rising and falling movements and stop at the initial position.

[0142] like Figure 15 and Figure 14 As shown, the eccentric component 335 of this disclosure can also contact and cooperate with the L-shaped component fixed on the chassis assembly 100 to realize the lifting and lowering of the brush roller unit 310. In other words, the L-shaped component of this disclosure can replace the aforementioned planar portion.

[0143] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0144] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0145] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An adjustment unit for a mobile cleaner, for adjusting the distance between the brush roller component of the brush roller unit of the mobile cleaner and the surface to be cleaned, characterized in that, include: A power input shaft, which is used to receive torque from a power source assembly and rotate about its axis of rotation; A worm gear portion is disposed on the portion of the power input shaft other than the input end; wherein the worm gear portion is disposed close to the input end of the power input shaft; A transmission member, rotatably disposed on the brush roller unit and configured to mesh with the worm gear portion; and An eccentric member, connected to the transmission member, is configured to be fixed relative to the rotation axis of the transmission member and slidably abut against the chassis assembly of the mobile cleaner during rotation; the eccentric member is configured to rotate during the rotation of the power input shaft to change the lift of the brush roller assembly relative to the chassis assembly of the mobile cleaner.

2. The adjustment unit according to claim 1, characterized in that, The power source assembly includes a drive device, which is disposed at one end near the adjustment unit.

3. The adjustment unit according to claim 2, characterized in that, In the length direction of the adjustment unit, the worm gear portion is within the extension length range of the drive device.

4. The adjustment unit according to claim 1, characterized in that, The eccentric component includes a rotation axis, and the rotation axis of the eccentric component is coaxial with the rotation axis of the transmission component.

5. The adjustment unit according to claim 1, characterized in that, The vertical distance between the rotation axis of the eccentric component and the outer periphery of the eccentric component is between 5 mm and 12 mm.

6. The adjustment unit according to claim 1, characterized in that, The vertical distance between the rotation axis of the eccentric component and the outer periphery of the eccentric component varies non-linearly.

7. The adjustment unit according to claim 1, characterized in that, The projection of the eccentric component onto a plane perpendicular to the axis of rotation is approximately teardrop-shaped.

8. The adjustment unit according to claim 1, characterized in that, The eccentric component rotates unidirectionally around the rotation axis.

9. The adjustment unit according to any one of claims 1-8, characterized in that, The eccentric component has at least one first outer peripheral surface and one second outer peripheral surface defined on its outer periphery. The first outer peripheral surface is at the largest distance from the rotation axis, and the second outer peripheral surface is at the smallest distance from the rotation axis. Optionally, the first outer peripheral surface and the second outer peripheral surface are disposed opposite to each other on the eccentric member; Optionally, when the first or second outer peripheral surface abuts against the chassis assembly of the mobile cleaner, the eccentric member can trigger the trigger of the mobile cleaner to cut off the torque transmitted by the power input axial eccentric member; Optionally, at least one of the first outer peripheral surface and the second outer peripheral surface includes a curved surface or a circular arc surface; Optionally, the outer periphery of the eccentric component further includes a third outer peripheral surface, which connects the first outer peripheral surface and the second outer peripheral surface; Optionally, the third outer peripheral surface includes a plane, and the second outer peripheral surface includes a semi-circular surface; Optionally, it also includes: A support plate configured to support the rotation of the transmission member; Optionally, the power source assembly includes a drive device, and on a plane extending vertically and passing through the output shaft axis of the drive device, the projection of the eccentric member is at least partially located within the projection range of the drive device.

10. A portable cleaner, characterized in that, Includes the adjustment unit as described in any one of claims 1-9.

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