CLEANING DEVICE

CROSS REFERENCE TO RELATED APPLICATION

[0001]The present disclosure is a Bypass Continuation Application of PCT International Application No. PCT/CN2024/091233, filed on May 6, 2024, which claims priority to Chinese Patent Application No. 2023223184199 filed on Aug. 25, 2023, the both of which are incorporated herein by reference in their entireties for all purposes.

TECHNICAL FIELD

[0002]The present disclosure belongs to the field of intelligent control technologies, and particularly relates to a cleaning device.

BACKGROUND OF THE INVENTION

[0003]A cleaning apparatus of the current cleaning device, such as a sweeper, usually adopts a self-adaptive floating design, that is, the cleaning apparatus always sticks close to the ground. In this way, when passing through an obstacle such as a carpet, there will be a case of hindering the movement of the cleaning device due to inconsistent heights of a surface to be swept.

SUMMARY OF THE INVENTION

[0004]Embodiments of the present disclosure provide a cleaning device. The cleaning device includes: a body, a driving apparatus and a cleaning apparatus, wherein the driving apparatus is fixedly connected to the body, the cleaning apparatus is movably connected to the body, and the driving apparatus drives the cleaning apparatus to lift relative to the body through an eccentric rotating member.

BRIEF DESCRIPTION OF DRAWINGS

[0005]FIG. 1 is a first schematic structural diagram of a cleaning device according to an embodiment of the present disclosure;

[0006]FIG. 2 is a second schematic structural diagram of a cleaning device according to an embodiment of the present disclosure;

[0007]FIG. 3 is a partial schematic structural diagram of an eccentric rotating member and a driven member in a cleaning device according to an embodiment of the present disclosure; and

[0008]FIG. 4 is a schematic structural diagram of an eccentric rotating member in a cleaning device according to an embodiment of the present disclosure.

DETAILED DESCRIPTION

[0011]In the descriptions of the present disclosure, it is to be understood that the orientation or positional relationships indicated by the terms such as “central”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise” and “counterclockwise” are the orientation or positional relationships shown on the basis of the accompanying drawings, only for the purposes of the ease in describing the present disclosure and simplification of its descriptions, without indicating or implying that the specified apparatus or element has to be specifically located, and structured and operated in a specific direction, and therefore should not be understood as limitations to the present disclosure.

[0012]Moreover, the terms “first” and “second” are only for the descriptive purpose and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined by “first” and “second” may include one or more of the features either explicitly or implicitly. In the descriptions of the present disclosure, unless otherwise clearly and specifically defined, “a plurality of” means two or more.

[0013]In the present disclosure, unless otherwise clearly specified and defined, the terms such as “mounting”, “connected with/to”, “connection” and “fixed” should be broadly understood. For example, “connection” may be fixed connection, detachable connection or integrated connection, or may be mechanical connection or electrical connection, or may be direct connection or indirect connection by an intermediation, or internal communication of two elements. Those of ordinary skill in the art may understand the specific meanings of the above terms in the present disclosure in accordance with specific conditions.

[0014]The embodiments of the present disclosure will be described below in combination with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0015]In combination with and referring to FIGS. 1 to 4, according to an embodiment of the present disclosure, a cleaning device includes a body 10, a driving apparatus 11 and a cleaning apparatus 12. The driving apparatus 11 is fixedly connected to the body 10, the cleaning apparatus 12 is movably connected to the body 10, and the driving apparatus 11 drives the cleaning apparatus 12 to lift relative to the body 10 through an eccentric rotating member 13. The eccentric rotating member 13 is driven by the driving apparatus 11 to rotate, so as to drive the cleaning apparatus 12 to move relative to the body 10, so that the cleaning apparatus 12 is lifted relative to the body 10. Further, the cleaning apparatus 12 can avoid an obstacle on a surface to be swept and stay at a preset height, such that the cleaning apparatus 12 has obstacle-avoiding and obstacle-crossing capabilities. The sweeping performance of the cleaning device is improved, the working requirement that the cleaning apparatus 12 does not need to be in contact with the surface to be swept is met, the requirement of consumers for independent selection of functions is met, and the use range of the product is expanded. At the same time, by lifting the cleaning apparatus 12 upward, the problem that the dirty cleaning apparatus 12 after cleaning causes secondary pollution to the swept surface in the process of moving along with the body 10 can also be avoided, and the sweeping effectiveness of the cleaning device is improved, thereby improving the overall cleanness after sweeping and achieving a good sweeping effect.

[0016]Further, when the cleaning device is used, it is necessary to place the cleaning device on the surface to be swept. The cleaning apparatus 12 is movably connected to one side of the body 10 close to the surface to be swept, and the driving apparatus 11 and the eccentric rotating member 13 are mounted on one side of the body 10 away from the surface to be swept. The eccentric rotating member 13 drives the cleaning apparatus 12 to move, thus completing a lifting action of the cleaning apparatus 12, so that the cleaning device has the obstacle-crossing capability.

[0017]Further, after the cleaning apparatus 12 is lifted, at least part of the cleaning apparatus 12 can be embedded into the body 10, so as to increase a distance between the cleaning apparatus 12 and the surface to be swept, so that the cleaning apparatus 12 has a greater obstacle-crossing height, and the use range of the cleaning device is expanded.

[0018]In the above embodiment, the cleaning device may be a self-moving cleaning robot or other cleaning robots that meet the requirements, wherein the self-moving cleaning robot is a device that automatically performs a cleaning operation within a certain area to be cleaned without user operation.

[0019]In some examples, the cleaning device may include a floor sweeper, a floor washer, a sweeping and mopping all-in-one machine, etc. Accordingly, the cleaning apparatus 12 may be a main brush, a mop and other cleaning components.

[0020]As an embodiment, as shown in FIGS. 1, 3 and 4, the cleaning apparatus 12 is provided with a driven member 1, the driven member 14 is rotatably connected to the cleaning apparatus 12, and a contact part 15 is arranged on the driven member 14 to be in contact with the eccentric rotating member 13. By arranging the driven member 14 on the cleaning apparatus 12, the driven member 14 is driven to move by rotation of the eccentric rotating member 13, and then the cleaning apparatus 12 is driven to move relative to the body 10, so that the cleaning apparatus 12 is driven to lift relative to the body 10 by the eccentric rotating member 13. By rotatably connecting the driven member 14 to the cleaning apparatus 12, the driven member 14 freely rotates relative to the cleaning apparatus 12 with an own center line thereof as a rotation axis. When the driving apparatus 11 drives the eccentric rotating member 13 to rotate, the contact part 15 will rotate along with the change of a contact position between the eccentric rotating member 13 and the contact part 15, so as to improve the contact stability between the eccentric rotating member 13 and the contact part 15, prevent the driven member 14 from shaking, and ensure a uniform stress of the cleaning apparatus 12, thereby ensuring the stability of the cleaning apparatus 12 in the lifting process.

[0021]The surface of the contact part 15 is a flat surface, so that the contact part 15 and the eccentric rotating member 13 are in matching contact in a line contact way. By enabling the surface of the contact part 15 to be the flat surface, when the driving apparatus 11 drives the eccentric rotating member 13 to rotate, the contact part 15 will rotate along with the change of the contact position between the eccentric rotating member 13 and the contact part 15, so that the eccentric rotating member 13 is always only in contact with the flat contact part 15, thereby keeping the contact part 15 and the eccentric rotating member 13 to be in line contact, further improving the contact stability between the eccentric rotating member 13 and the contact part 15, and ensuring the stability of the cleaning apparatus 12 in the lifting process.

[0022]That is to say, when the driven member 14 is fixed and incapable of rotating correspondingly along with the rotation of the eccentric rotating member 13, the contact part 15 is in point contact with the eccentric rotating member 13, and the rotation of the eccentric rotating member 13 will generate a larger friction force on the driven member 14. In the long run, the contact position between the eccentric rotating member 13 and the driven member 14 will be seriously worn. As a result, a gap between the eccentric rotating member 13 and the driven member 14 increases. Under the driving of the eccentric rotating member 13, a moving distance of the driven member 14 is reduced or the driven member 14 cannot move in time, leading to an insufficient lifting height or lifting incapability of the cleaning apparatus 12 and limited obstacle-crossing capability. By rotatably connecting the driven member 14 to the cleaning apparatus 12, the contact position between the driven member 14 and the eccentric rotating member 13 constantly changes. Since the contact position between the driven member 14 and the eccentric rotating member 13 is not fixed and the driven member 14 rotates along with the eccentric rotating member 13, not only can the friction force between the driven member 14 and the eccentric rotating member 13 be reduced, but also the problem of seriously worn contact point caused by the fixed contact position can be solved, thereby ensuring that the cleaning apparatus 12 is stably lifted to a specified height to pass through the obstacle.

[0023]It should be noted that when the cleaning apparatus 12 needs to be lifted to cross the obstacle, the driving apparatus 11 drives the eccentric rotating member 13 to rotate to an extreme position farthest from the sweeping surface. At this time, the driven member 14 moves to a position farthest from the sweeping surface, so that the cleaning apparatus 12 is lifted to the maximum height. When the cleaning apparatus 12 is required to descend for sweeping, the driving apparatus 11 drives the eccentric rotating member 13 to rotate by the extreme position farthest from the sweeping surface. At this time, the eccentric rotating member 13 has no supporting effect on the driven member 14, and the cleaning apparatus 12 and the driven member 14 descend under their own gravity until the driving apparatus 11 drives the eccentric rotating member 13 to rotate to an extreme position closest to the sweeping surface, so that the cleaning apparatus 12 can be in contact with the sweeping surface with a certain downward pressure, which simplifies the power output of the cleaning apparatus 12 in a descending process, is beneficial for saving energy consumption and reduces the use cost.

[0024]Further, the cleaning apparatus 12 includes a floating bracket 121 and a cleaning module 122. The floating bracket 121 is movably connected to the body through an elastic reset apparatus. When the cleaning apparatus 12 is lifted upward, the floating bracket 121 compresses the elastic reset apparatus. After the eccentric rotating member 13 rotates by the extreme position to cancel the position limiting for the driven member 14, the elastic reset apparatus restores the elastic deformation to generate a downward thrust for the floating bracket 121, so that the cleaning apparatus 12 falls quickly, and the sweeping timeliness of the cleaning apparatus 12 is improved. At the same time, the problem of jamming caused by poor lubrication of the cleaning apparatus in a falling process after long-term use can be avoided, and the flexibility and continuity of the lifting action of the sweeping apparatus can be ensured, thereby being beneficial for improving the use experience.

[0025]In some examples, the elastic reset apparatus may be a compression spring, a leaf spring or other elastic members that meet the requirements.

[0026]As shown in FIGS. 3 and 4, when the contact part 15 is in contact with the eccentric rotating member 13, the eccentric rotating member 13 and the contact part 15 are in a positive pressure state. By enabling the contact part 15 and the eccentric rotating member 13 to be in the positive pressure state, an acting force of the eccentric rotating member 13 on the contact part 15 is perpendicular to the sweeping surface, and then a response speed of the driven member 14 is improved, thereby improving the flexibility of the lifting action of the cleaning apparatus 12, ensuring the working continuity of the cleaning device and improving the working efficiency of the cleaning device.

[0027]Further, when the contact part 15 is in contact with the eccentric rotating member 13, the direction of the acting force of the eccentric rotating member 13 on the contact part 15 is perpendicular to the sweeping surface. The response speed of the driven member 14 can be further improved by enabling the direction of the acting force of the eccentric rotating member 13 on the contact part 15 to be perpendicular to the sweeping surface. At the same time, the moving distance of the cleaning apparatus is a lifting distance of the cleaning apparatus, so that the cleaning apparatus can be quickly lifted to the preset height to quickly avoid the obstacle.

[0028]It should be noted that the positive pressure state means that a stress direction of the contact part 15 is always perpendicular to the surface to be swept. When the contact part 15 is in a non-positive pressure state, there will be an angle between the stress direction of the contact part 15 and a plane where the sweeping surface is located, and a horizontal force instead of an effective action force for lifting the cleaning apparatus 12 will be generated. However, when the driven member 14 is in the positive pressure state, the eccentric rotating member 13 only applies a force perpendicular to the direction of the sweeping surface to the driven member 14, so that the stress direction of the cleaning apparatus is consistent with the lifting direction of the cleaning apparatus, which is beneficial for the quick lifting of the cleaning apparatus.

[0029]In the above embodiment, the driven member 14 is of a columnar structure, and the contact part 15 is arranged on a side surface of the driven member 14 in a height direction of the driven member 14. When the product is assembled, it is necessary to rotate the contact part 15 to one side of the driven member 14 close to the eccentric rotating member 13 in advance, so that the eccentric rotating member 13 is in contact with the contact part 15 and then drives the driven member 14 to move.

[0030]As another embodiment, as shown in FIGS. 3 and 4, the eccentric rotating member 13 sleeves an output shaft of the driving apparatus 11, is fixedly connected to the output shaft, and rotates synchronously with the output shaft. By directly fixing the eccentric rotating member 13 on the output shaft of the driving apparatus 11 to drive the driven member 14 to rotate, it can be ensured that the cleaning apparatus 12 is lifted in place without a complicated eccentric rotating mechanism, thereby achieving the stability and reliability of the cleaning apparatus 12. At the same time, the space occupied by the eccentric mechanism is reduced, the spatial layout of the product is reasonably utilized, and the weight and volume of the product are reduced.

[0031]As shown in FIG. 4, the mounting part 131 sleeves the output shaft, and the mounting part 131 is fixedly connected to the output shaft. An eccentric part 132 is arranged at one end of the mounting part 131 away from the driving apparatus 11, and the eccentric part 132 protrudes towards a direction away from an axis of the mounting part 131 to drive the driven member 14 to move. The mounting part 131 is fixed on the output shaft to ensure the synchronization of the rotation of the whole eccentric rotating member 13 and the output shaft, thereby facilitating the precise control on the lifting height of the driven member 14. By enabling the eccentric part 132 to protrude towards the direction away from the axis of the mounting part 131, the eccentric part 132 protrudes from the outer surface of the mounting part 131, and the eccentric part 132 rotates eccentrically relative to the output shaft, which further drives the driven member 14 to shift relative to the body 10. The lifting action of the cleaning apparatus 12 can be achieved through the eccentric rotating member 13 with a simple structure, so that the cleaning apparatus 12 has the obstacle-crossing capability.

[0032]In the above embodiment, the eccentric part 132 is of a rod-shaped structure. A side surface of the eccentric part 132 is arranged parallel to the axis of the output shaft, and the driven member 14 is arranged perpendicular to the axis of the output shaft. Therefore, the side wall of the eccentric part 132 is in vertical contact with the driven member 14, which avoids a lateral pressure on the driven member 14 when the eccentric part 132 rotates, prevents the driven member 14 from shaking due to the constantly changing stress direction, and ensures the stability of the driven member 14 in the moving process. Further, the stability of the cleaning apparatus 12 in the lifting process is ensured, and the wearing condition at the movable connection between the cleaning apparatus 12 and the body 10 is alleviated, thereby prolonging the service life of the product.

[0033]Further, the connection between the eccentric part 132 and the mounting part 131 is in smooth transition, so as to reduce stress concentration, prevent the eccentric part 132 from inclining or deforming, and ensure that the contact surface between the eccentric part 132 and the driven member 14 is always parallel to the output shaft. Further, the driven member 14 is driven to move smoothly, thereby ensuring the stability of the cleaning apparatus 12 in the lifting process.

[0034]In some examples, the eccentric part 132 may be integrated with the mounting part 131, with high connection strength, reliable structure and convenience in manufacture, which is beneficial for improving the production efficiency and reducing the production cost.

[0035]As shown in FIGS. 3 and 4, the eccentric part 132 rotates to drive the driven member 14 to move, such that the driven member 14 can be lifted relative to the body 10 to adjust the lifting height of the cleaning apparatus 12. Due to the eccentric rotation of the eccentric part 132 relative to the output shaft, the driven member 14 is driven to move relative to the body 10. When the driven member 14 moves towards a direction close to the body 10, the cleaning apparatus 12 is lifted relative to the body 10, thereby playing a role of adjusting the lifting height of the cleaning apparatus 12 by the rotation of the eccentric part 132.

[0036]Further, the eccentric rotating member 13 is driven by the driving apparatus 11 to rotate, and then the position of the eccentric part 132 is adjusted. When the height of the obstacle on the surface to be swept is lower, the eccentric part 132 may not be rotated to an extreme position of a highest point, such that the cleaning apparatus 12 can pass through the obstacle, thereby ensuring that the cleaning apparatus 12 can quickly descend and fall back after crossing the obstacle, and improving the working efficiency of the cleaning device.

[0037]As shown in FIG. 1, the eccentric part 132 is disposed on a side of the driven member 14 facing the body 10. When the eccentric part 132 rotates upward, the eccentric part 132 drives the cleaning apparatus 12 to move and lift the cleaning apparatus 12. The eccentric part 132 is disposed between the driven member 14 and the body 10. When the eccentric part 132 drives the driven member 14 to rotate upward, the eccentric part 132 drives the driven member 14 to move upward away from the sweeping surface, which further drives the cleaning apparatus 12 to move towards a direction away from the sweeping surface, thereby completing the lifting action of the cleaning apparatus 12.

[0038]When the eccentric part 132 rotates downward, the cleaning apparatus 12 descends. When the eccentric part 132 rotates downward, the driven member 14 is no longer pushed or supported by the eccentric part 132, and the cleaning apparatus 12 falls and moves towards a direction close to the sweeping surface, thus completing the descending action of the cleaning apparatus 12, enabling the cleaning apparatus 12 to reach the sweeping height quickly after avoiding the obstacle, and ensuring the working continuity of the cleaning device.

[0039]As shown in FIG. 1, a position detection apparatus 16 is arranged on the cleaning apparatus 12, and the position detection apparatus 16 is configured to send a control signal to the driving apparatus 11 when the cleaning apparatus 12 moves to the preset height. By arranging the position detection apparatus 16 on the cleaning apparatus 12, when the position detection apparatus 16 detects that the cleaning apparatus 12 is lifted to the preset height, the position detection apparatus 16 sends a signal to stop the rotation of the driving apparatus 11, so that the cleaning apparatus 12 stops at the preset height and is lifted in place.

[0040]It can be understood that the upward rotation of the eccentric part 132 means that the eccentric part 132 rotates towards a direction away from the sweeping surface. The downward rotation of the eccentric part 132 means that the eccentric part 132 rotates towards a direction close to the sweeping surface.

[0041]The position detection apparatus 16 may be a photoelectric sensor, a contact sensor, or other sensors that meet the requirements, which is not limited in the present disclosure.

[0042]In the above embodiment, the position detection apparatus 16 is arranged on at least one of the floating bracket 121 and/or the cleaning module. That is, the position detection apparatus 16 may be arranged on the floating bracket 121 or the cleaning module, or the position detection apparatus 16 may be arranged on the floating bracket 121 and the cleaning module at the same time. It can be understood that the position detection apparatus 16 may also be arranged in other positions that meet the requirements, so as to meet different types of requirements of the position detection apparatus 16 and expand the use range of the product.

[0043]Further, when the position detection apparatus 16 is arranged on the floating bracket 121, the body 10 is provided with a baffle thereon. When the floating bracket 121 moves to a preset position, the baffle can trigger the position detection apparatus 16 on the floating bracket 121 to send the signal. That is to say, through the arrangement of the baffle, it is beneficial to improve the timeliness and accuracy of the signal sent by the position detection apparatus 16.

[0044]It is easy for those skilled in the art to understand that the above embodiments may be freely combined and superimposed without conflict.

[0045]The foregoing is merely preferred embodiments of the present disclosure, and not used to limit the present disclosure. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure. The foregoing is merely the embodiments of the present disclosure, and it should be pointed out that for a person of ordinary skill in the art, several improvements and variations may be made without departing from the technical principles of the present disclosure, and these improvements and variations should also be regarded as the protection scope of the present disclosure.