Rotating pivot assembly, cleaning device and cleaning system

Abstract

A rotating pivot assembly (30) and a cleaning device. The rotating pivot assembly (30) comprises: a first connector member (310), a second connector member (330) and an air guide pipe (320); the first connector member (310) comprises a first air inlet (311), a first air outlet (312) and a first air path; the second connector member (330) comprises a second air inlet (331), a second air outlet (332) and a second air path; the air guide pipe (320) comprises a third air inlet (321), a third air outlet (322) and a third air path; the third air inlet (321) is connected to the first air outlet (312); the third air outlet (322) is connected to the second air inlet (331); the second connector member (330) can rotate between a standing position and a lying position; when the second connector member (330) is located at the standing position, the air guide pipe (320) comprises a second air guide pipe section (2504) connected to the second connector member (330) and a first air guide pipe section (2506) connected to the first connector member (310); the second connector member (330) and the air guide pipe (320) have a mating surface (2500); a first included angle (ɑ) between the central axis of the second air guide pipe section (2504) and a direction (2508) that is parallel to the mating surface (2500) and extends in the retreating direction of a cleaning device is an obtuse angle.

Description

Shaft assemblies, cleaning equipment and cleaning systems

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application No. 202323666194.2 filed on December 29, 2023, which is incorporated herein by reference in its entirety. Technical Field

[0003] The present disclosure relates to the technical field of cleaning equipment, and in particular to a rotating shaft assembly, a cleaning equipment, and a cleaning system. Background Art

[0004] As society continues to develop and people's living standards improve, floor scrubbers are becoming increasingly popular in more and more households, saving time and effort compared to traditional manual cleaning. A floor scrubber typically consists of a main unit and a floor brush assembly. The floor brush assembly includes a cleaning roller for mopping. Cleaning fluid is sprayed onto the cleaning roller through a hose, and the roller rotates at high speed to scrub the floor.

[0005] However, during the cleaning process of current floor scrubbers, the floor brush assembly has low flexibility relative to the body of the scrubber.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0007] The purpose of the present disclosure is to provide a rotating shaft assembly, a cleaning device and a cleaning system.

[0008] According to one aspect of the present disclosure, there is provided a shaft assembly, the shaft assembly comprising:

[0009] a first connector, the first connector comprising a first air inlet, a first air outlet, and a first air duct located between the first air inlet and the first air outlet;

[0010] a second connector, the second connector comprising a second air inlet, a second air outlet, and a second air duct located between the second air inlet and the second air outlet; and

[0011] an air duct, the air duct comprising a third air inlet, a third air outlet, and a third air duct located between the third air inlet and the third air outlet, the third air inlet being connected to the first air outlet, and the third air outlet being connected to the second air inlet;

[0012] In which, the second joint part can rotate between a vertical position and a lying position; when the second joint part is in the vertical position, the air duct includes a second air duct section connected to the second joint part and a first air duct section connected to the first joint part; the second joint part and the air duct have a connecting surface; the first angle between the central axis of the second air duct section and a direction parallel to the connecting surface and extending in the backward direction of the cleaning equipment is an obtuse angle.

[0013] In an exemplary embodiment of the present disclosure, the shaft assembly further includes: a shaft member, the shaft member is formed with a first through hole, and the first connector member, the air duct and the second connector member are connected and then passed through the first through hole of the shaft member.

[0014] In an exemplary embodiment of the present disclosure, the shaft assembly further includes:

[0015] The third joint part is formed with a second through hole, and the first joint part, the air duct and the second joint part are connected and then passed through the second through hole of the rotating shaft part; the third joint part is located on the side of the rotating shaft part close to the second joint part.

[0016] In an exemplary embodiment of the present disclosure, the third air outlet of the air duct is rotatably connected to the second air inlet of the second joint member, and the third joint member is rotatably connected to the rotating shaft member.

[0017] In an exemplary embodiment of the present disclosure, when the second joint member is in the vertical position, in the direction extending toward the rearward direction of the cleaning device, the second angle between the rotating surface of the third joint member rotatably connected to the rotating shaft member and the plane parallel to the cleaning surface of the cleaning device is an obtuse angle.

[0018] In an exemplary embodiment of the present disclosure, the first angle is equal to the second angle.

[0019] In an exemplary embodiment of the present disclosure, the air duct and the second connector are connected by a snap fastener, which forms a restriction on the axial separation of the air duct and the second connector; or, the air duct and the second connector are axially snap-connected; or, the air duct and the second connector are magnetically connected.

[0020] In an exemplary embodiment of the present disclosure, the second connector includes a first body segment and a second body segment, the first body segment is connected to the second body segment, and the central axes of the first body segment and the second body segment intersect; the second air inlet is located on the first body segment, and the second air outlet is located on the second body segment;

[0021] Wherein, the central axis of the first body segment intersects with at least one of the central axis of the rotating shaft component and the central axis of the third joint component.

[0022] In an exemplary embodiment of the present disclosure, a central axis of the rotating shaft is parallel to a central axis of the third joint member.

[0023] In an exemplary embodiment of the present disclosure, the air guide duct includes:

[0024] an air duct body; and

[0025] The fourth connector includes a first end and a second end opposite to each other, the first end is connected to the second air inlet of the second connector, and the second end is connected to one end of the air duct body to form the third air outlet.

[0026] In an exemplary embodiment of the present disclosure, one end of the air duct body forming the third air inlet is connected to the first air outlet of the first connector.

[0027] According to another aspect of the present disclosure, there is provided a cleaning device, the cleaning device comprising:

[0028] body;

[0029] Floor brush assembly;

[0030] The above-mentioned rotating shaft assembly, the body and the floor brush assembly are rotatably connected through the rotating shaft assembly, and the body can be switched between an upright position and a lying position.

[0031] In an exemplary embodiment of the present disclosure, the rotating shaft assembly also includes a third joint member, on which a positioning portion is provided; the floor brush assembly includes a shell, on which a positioning groove is formed; when the machine body is in the vertical position, the positioning portion is located in the positioning groove.

[0032] In an exemplary embodiment of the present disclosure, the rotating shaft member includes a main body portion, a first rotating shaft portion, and a second rotating shaft portion, the main body portion forms the first through hole, the first rotating shaft portion and the second rotating shaft portion are located on two radially opposite sides of the main body portion, and the first rotating shaft portion and the second rotating shaft portion are rotatably connected to the floor brush assembly;

[0033] A protrusion is provided on the outer circumferential surface of at least one of the first rotating shaft portion and the second rotating shaft portion, and a trigger switch is provided in the floor brush assembly. When the machine body leaves the vertical position, the protrusion triggers the trigger switch.

[0034] In an exemplary embodiment of the present disclosure, the protrusions are respectively provided on the outer circumferences of the first rotating shaft portion and the second rotating shaft portion, and the protrusions on the outer circumferences of the first rotating shaft portion and the second rotating shaft portion are symmetrically arranged relative to the main body portion.

[0035] In an exemplary embodiment of the present disclosure, a limiting protrusion is provided on the outer peripheral surface of at least one of the first rotating shaft portion and the second rotating shaft portion in the circumferential direction; a damping assembly is provided in the floor brush assembly, and when the machine body is in a vertical position, the damping assembly forms a damping on the limiting protrusion in the rotation direction of the rotating shaft.

[0036] In an exemplary embodiment of the present disclosure, the damping assembly includes an elastic member and a damping block, and the damping block is arranged on the elastic member; when the machine body rotates from the upright position toward the lying position, the limiting protrusion squeezes the damping block, and the damping block retracts through the elastic member to allow the limiting protrusion to pass through the damping assembly.

[0037] According to another aspect of the present disclosure, a cleaning system is provided, comprising: a base station; and the above-mentioned cleaning device, which can be docked on the base station.

[0038] The rotary shaft assembly provided by the present disclosure is connected through the first joint member, the air guide duct and the second joint member, so that the first air duct, the second air duct and the third air duct are connected, thereby realizing the function of connecting the sewage suction port on the floor brush assembly in the cleaning device and the sewage tank on the machine body through the rotary shaft assembly; the second joint member can rotate between the upright position and the lying position through the rotary shaft member, driving the duct wind to bend, and providing a flexible air guide channel; after the first joint member, the air guide duct and the second joint member are connected, they are inserted into the first through hole of the rotary shaft member, and the rotary shaft member is rotatably connected to the floor brush assembly; when the rotary shaft member and the floor brush assembly rotate relative to each other, the air guide duct can be driven to rotate, so as to achieve the purpose of rotating the machine body relative to the floor brush assembly; since the first included angle between the central axis of the second air guide duct section and the direction parallel to the connecting surface and extending in the backward direction of the cleaning device is an obtuse angle, the air guide duct can be in the upright position and the lying position, so the machine body can be converted between the upright position and the lying position relative to the floor brush assembly, which can improve the flexibility of the floor brush assembly during cleaning operation.

[0039] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification, are used to explain the principles of the present disclosure. Obviously, the drawings described below are only some embodiments of the present disclosure, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0041] FIG1 is a perspective view of a cleaning device provided by an embodiment of the present disclosure in a vertical position.

[0042] FIG2 is a side view of a cleaning device provided in an embodiment of the present disclosure in an upright position.

[0043] FIG3 is a rear view of a cleaning device provided in an embodiment of the present disclosure in an upright position.

[0044] FIG4 is a side view of a cleaning device provided by an embodiment of the present disclosure in a lying position.

[0045] FIG5 is a side view of a shaft assembly provided in accordance with an embodiment of the present disclosure.

[0046] FIG6 is a front view of a rotating shaft assembly provided in an embodiment of the present disclosure.

[0047] FIG7 is a schematic diagram of a first connector provided in accordance with an embodiment of the present disclosure.

[0048] FIG8 is a schematic diagram of a first connector provided by an embodiment of the present disclosure from another perspective.

[0049] FIG9 is a schematic diagram of an air duct provided in an embodiment of the present disclosure.

[0050] FIG10 is a schematic diagram of a second connector provided in accordance with an embodiment of the present disclosure.

[0051] FIG11 is a schematic diagram of a rotating shaft provided in accordance with an embodiment of the present disclosure.

[0052] FIG12 is a schematic diagram of a rotating shaft provided by an embodiment of the present disclosure from another perspective.

[0053] FIG13 is a side view of a shaft assembly provided in accordance with an embodiment of the present disclosure.

[0054] FIG14 is a schematic diagram of a third connector provided in accordance with an embodiment of the present disclosure.

[0055] FIG15 is a side view of a third connector provided in accordance with an embodiment of the present disclosure.

[0056] FIG16 is a schematic diagram of a floor brush assembly provided in accordance with an embodiment of the present disclosure.

[0057] FIG17 is a schematic diagram of a floor brush assembly and a rotating shaft assembly provided in an embodiment of the present disclosure.

[0058] FIG18 is a schematic diagram of a rotating shaft and a trigger switch provided in an embodiment of the present disclosure.

[0059] FIG19 is a schematic diagram of a trigger switch provided in accordance with an embodiment of the present disclosure.

[0060] FIG20 is a schematic diagram of a damping assembly provided in accordance with an embodiment of the present disclosure.

[0061] FIG21 is a schematic diagram of a damping assembly provided by an embodiment of the present disclosure from another perspective.

[0062] FIG22 is a schematic diagram of the connection between the air duct and the second connector provided in an embodiment of the present disclosure.

[0063] FIG23 is a schematic diagram of the connection between the air duct and the second connector provided in another embodiment of the present disclosure.

[0064] FIG24 is a schematic diagram of the connection between the air duct and the second connector provided in yet another embodiment of the present disclosure.

[0065] FIG25 is a cross-sectional view of a rotating shaft assembly provided in accordance with an embodiment of the present disclosure.

[0066] Explanation of Reference Numerals: 10, housing; 110, sewage tank; 120, clean water tank; 20, floor brush assembly; 210, housing; 220, positioning slot; 230, trigger switch; 231, switch body; 232, elastic arm; 233, contact point; 240, damping assembly; 241, damping block; 242, elastic member; 243, guide member; 30, rotating shaft assembly; 310, first connector; 311, first air inlet; 312, first air outlet; 320, air duct; 321, third air inlet; 322, third air outlet; 323, air duct body; 324, fourth connector; 325, first magnetic member; 326, first latching slot; 327, third latching protrusion; 330, second connector; 331, second air inlet; 332, second air outlet; 333, first body section; 334, second body section; 335, second magnetic member; 336, first latching protrusion; 337, second latching protrusion; 338, second latching groove; 340, rotating shaft member; 341, first through hole; 342, rotating shaft connector; 343, body section; 344, first rotating shaft section; 345, second rotating shaft section; 346, protrusion; 347, limiting protrusion; 348, stopping protrusion; 350, third connector; 351, positioning section; 352, second through hole; 360, fastener; 2500, connecting surface; 2502, central axis of second air duct section; 2054, second air duct section; 2056, first air duct section; 2508, a direction parallel to the connecting surface 2500 and extending in the backward direction of the cleaning device; 3500, a rotating surface; 3502, a direction parallel to the cleaning surface and extending in the backward direction of the cleaning device. DETAILED DESCRIPTION

[0067] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the example embodiments to those skilled in the art. Like reference numerals in the figures represent like or similar structures, and thus their detailed description will be omitted.

[0068] Although relative terms such as "upper" and "lower" are used in this specification to describe the relationship of one illustrated component to another, these terms are used herein for convenience only, such as in accordance with the orientation of the illustrations in the accompanying drawings. It will be understood that if the illustrated device were flipped upside down, the component described as "upper" would become the component "lower." When a structure is referred to as "on" another structure, this may mean that the structure is integrally formed with the other structure, that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via the other structure.

[0069] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express open-ended inclusion and mean that additional elements / components / etc. may be present in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used only as labels and are not intended to limit the quantity of their objects.

[0070] Embodiments of the present disclosure provide a cleaning device, such as a floor scrubber. It should be noted that the present disclosure's description of the cleaning device using a floor scrubber is merely a preferred embodiment of the present disclosure and does not limit the scope of protection of the cleaning device of the present disclosure. For example, the cleaning device of the present disclosure may be a handheld floor scrubber with a handle and manually operated by a user, or a handheld floor sweeper with a handle and manually operated by a user.

[0071] In the following, the embodiments of the present disclosure will be described in detail by taking a handheld floor scrubber as an example of a cleaning device.

[0072] Specifically, as shown in Figures 1 to 3, the handheld floor scrubber includes a body 10, a floor brush assembly 20 and a shaft assembly 30. The floor brush assembly 20 is provided with components for cleaning the floor, such as a cleaning roller. When the floor brush assembly 20 cleans the floor to be cleaned, it is necessary to suck sewage and debris into the sewage tank 110 of the sewage suction assembly through the sewage suction assembly. The sewage tank 110 is usually provided on the body 10 to reduce the volume of the floor brush assembly 20 and reduce the weight of the floor brush assembly 20, thereby improving the flexibility of the floor brush assembly 20 and further improving the cleaning effect on the floor. Therefore, the shaft assembly 30 needs to realize two functions at the same time: one is to realize the rotatable connection between the body 10 and the floor brush assembly 20, and the other is to realize the connection between the sewage suction port on the floor brush assembly 20 and the sewage tank 110.

[0073] In one embodiment of the present disclosure, as shown in Figures 5 to 12, the rotating shaft assembly 30 includes: a first joint member 310, an air duct 320, and a second joint member 330. The first joint member 310 includes a first air inlet 311, a first air outlet 312, and a first air duct located between the first air inlet 311 and the first air outlet 312. The second joint member 330 includes a second air inlet 331, a second air outlet 332, and a second air duct located between the second air inlet 331 and the second air outlet 332. The air duct 320 includes a third air inlet 321, a third air outlet 322, and a third air duct located between the third air inlet 321 and the third air outlet 322. The third air inlet 321 is connected to the first air outlet 312, and the third air outlet 322 is connected to the second air inlet 331.

[0074] The second joint member 330 can rotate between a vertical position and a horizontal position. Fig. 25 is a cross-sectional view of the shaft assembly cut along the section line AA' in Fig. 6 . As shown in FIG25 , when the second connector 330 is in the upright position, the air duct includes a second air duct segment 2504 connected to the second connector 330 and a first air duct segment 2506 connected to the first connector. The second connector 330 and the air duct 320 have a connecting surface 2500. The first angle α between the central axis 2502 of the second air duct segment 2504 and a direction 2508 parallel to the connecting surface 2500 and extending in the backward direction of the cleaning device is an obtuse angle. That is, the first angle between the central axis of the air duct 320 and the plane of the third air outlet 322 on the air duct 320 is an obtuse angle in the direction of the air duct 320 transitioning from the upright position to the lying position and in the direction toward the second connector 330. That is, the connecting surface 2500 connecting the air duct 320 and the second connector 330 is an inclined surface. The forward direction of the cleaning device is the direction in which the user manually pushes the cleaning device forward when the cleaning device is in use. The backward direction of the cleaning device is the direction opposite to the forward direction of the cleaning device.

[0075] The shaft assembly 30 provided herein is connected via a first connector 310, an air duct 320, and a second connector 330, thereby connecting the first, second, and third air ducts. This connects the sewage suction port on the floor brush assembly 20 with the sewage tank 110 via the shaft assembly 30. The second connector 330 can rotate between an upright position and a reclining position, allowing the air duct 320 to switch between the upright and reclining positions, providing a flexible air-guiding channel.

[0076] In addition, the shaft assembly 30 may further include a shaft member 340. The shaft member 340 is formed with a first through hole 341. The first connector 310, the air duct 320 and the second connector 330 are connected and then passed through the first through hole 341 of the shaft member 340.

[0077] After being connected, the first connector 310, the air duct 320, and the second connector 330 are inserted into the first through hole 341 of the rotating shaft 340. The rotating shaft 340 is rotatably connected to the floor brush assembly 20. When the rotating shaft 340 and the floor brush assembly 20 rotate relative to each other, the air duct 320 can be driven to rotate, thereby achieving the purpose of rotating the machine body 10 relative to the floor brush assembly 20. Because the air duct includes a second air duct section connected to the second connector and a first air duct section connected to the first connector; the second connector and the air duct have a connecting surface; and the first angle between the central axis of the second air duct section and a direction parallel to the connecting surface and extending in the rearward direction of the cleaning device is an obtuse angle, the air duct 320 can be rotated between an upright position and a reclining position under the drive of the rotating shaft 340, as shown in Figures 1 and 4. Therefore, the machine body 10 can switch between an upright position and a reclining position relative to the floor brush assembly 20, improving the flexibility of the floor brush assembly 20 during cleaning operations.

[0078] As shown in Figures 13-15 , the shaft assembly 30 further includes a third connector 350 having a second through hole 352 formed therein. The first connector 310, the air duct 320, and the second connector 330 are connected and then passed through the second through hole 352 of the shaft 340. The third connector 350 is located on the side of the shaft 340 that is closest to the second connector 330.

[0079] The third connector 350 includes a first end and a second end in opposite directions. The second through hole 352 connects the first end and the second end of the third connector 350. The first end of the third connector 350 is rotatably connected to the rotating shaft 340. The third air outlet 322 of the air duct 320 is rotatably connected to the second air inlet 331 of the second connector 330, that is, the rotating shaft assembly 30 can be regarded as two groups of components that are rotatably connected. The second end of the third connector 350 is fixedly connected to the body 10. By controlling the body 10, the body 10 can be swung in the left and right directions relative to the floor brush assembly 20, thereby further improving the flexibility of the floor brush assembly 20 when cleaning the floor.

[0080] When the second connector 330 is in the upright position, a second angle β between a rotating surface 3500 of the third connector 350 rotatably connected to the rotating shaft 340 and a direction 3502 parallel to the cleaning surface of the cleaning device and extending in the rearward direction of the cleaning device is an obtuse angle. That is, the second angle β between the rotating surface of the third connector 350 rotatably connected to the rotating shaft 340 and the central axis of the air duct 320 is an obtuse angle in the direction in which the air duct 320 transitions from the upright position to the lying position and in the direction toward the second connector 330. The cleaning surface of the cleaning device is the cleaning surface provided by the cleaning roller brush in the floor brush assembly 20. After the cleaning surface of the floor brush assembly 20 contacts the surface to be cleaned, the cleaning surface of the floor brush assembly 20 becomes parallel or substantially parallel to the surface to be cleaned, so as to perform a cleaning operation on the surface to be cleaned. By making the second angle between the rotational surface of the third joint member 350 and the rotation shaft member 340 rotatably connected and the central axis of the air duct 320 an obtuse angle, that is, the rotational surface of the third joint member 350 and the rotation shaft member 340 rotatably connected is an inclined surface, the angle between the central axis of the third joint member 350 and the central axis of the body 10 is relatively small, for example, 5° to 20°, so that the body 10 can be positioned in a lying position relative to the floor brush assembly 20 through the rotation of the rotation shaft assembly 30. At the same time, by making the rotational surface of the third joint member 350 and the rotation shaft member 340 rotatably connected is an inclined surface, that is, the driving surface of the rotation assembly is an inclined surface, the floor brush assembly 20 can rotate relatively flexibly relative to the body 10 when the body 10 is in the lying position.

[0081] The first angle can be equal to the second angle, that is, the rotational plane of the third connector 350 and the rotating shaft 340 is parallel to the rotational plane of the third air outlet 322 of the air duct 320 and the second air inlet 331 of the second connector 330, further enhancing the flexibility of the rotation when driven by the body 10. Of course, the first angle and the second angle can also be different, and this disclosure is not limited to this.

[0082] As shown in Figures 5 and 10, the second connector 330 includes a first body section 333 and a second body section 334. The first body section 333 is connected to the second body section 334, and the central axes of the first body section 333 and the second body section 334 intersect. The second air inlet 331 is located on the first body section 333, and the second air outlet 332 is located on the second body section 334.

[0083] The central axis of the first body section 333 intersects the central axis of the rotating shaft 340; alternatively, the central axis of the first body section 333 intersects the central axis of the third connector 350; alternatively, the central axis of the first body section 333 intersects the central axis of the rotating shaft 340 and the central axis of the third connector 350. By intersecting the central axis of the first body section 333 with the central axis of the rotating shaft 340 or the central axis of the third connector 350, the rotational surface connecting the third air outlet 322 of the air duct 320 and the second air inlet 331 of the second connector 330 can be an inclined surface. Furthermore, the angle between the central axis of the third connector 350 and the central axis of the housing 10 can be relatively small, thereby improving the flexibility of the housing 10 when it is in a lying position relative to the floor brush assembly 20, thereby facilitating floor cleaning by the floor brush assembly 20.

[0084] The central axis of the rotating shaft 340 is parallel to the central axis of the third joint 350. The rotating shaft 340 and the third joint 350 can be coaxially arranged to enhance the relative rotational flexibility between the third joint 350 and the rotating shaft 340. Of course, the central axis of the rotating shaft 340 and the central axis of the third joint 350 can be non-parallel. For example, the central axis of the rotating shaft 340 and the central axis of the third joint 350 can have a small angle, which is not limited in this disclosure.

[0085] Specifically, the air duct 320 includes: an air duct body 323 and a fourth connector 324. The fourth connector 324 includes a first end and a second end opposite to each other. The first end of the fourth connector 324 is rotatably connected to the second air inlet 331 of the second connector 330. The second end of the fourth connector 324 is bonded to one end of the air duct body 323. By providing the fourth connector 324, the air duct body 323 and the second connector 330 are connected. The air outlet end of the air duct body 323 can be bonded to the first end of the fourth connector 324. The air duct body 323 can be inserted into the first end of the fourth connector 324. The air duct body 323 and the fourth connector 324 are bonded by applying adhesive or double-sided tape between the air duct body 323 and the fourth connector 324. By bonding, the number of components of the rotating shaft assembly 30 is reduced, the production cost is lowered, the assembly effect and maintenance economy are improved, and the connection reliability between the air duct body 323 and the fourth connector 324 is improved.

[0086] As shown in Figure 11, the fourth joint member 324 can be connected to the rotating shaft member 340. That is, the fourth joint member 324 and the rotating shaft member 340 can be an integrated joint, which reduces the number of components of the rotating shaft assembly 30 and improves the connection strength between the rotating shaft member 340 and the fourth joint member 324. Of course, the fourth joint member 324 and the rotating shaft member 340 can also be separate structures and can be connected together through bonding, welding, clamping, threading, etc., which is not limited in this disclosure.

[0087] As shown in Figures 5 and 6, the shaft assembly 30 further includes a snap member 360. After the first end of the fourth connector 324 is rotatably connected to the second air inlet 331 of the second connector 330, the snap member 360 is simultaneously engaged with the connection between the fourth connector 324 and the second connector 330, thereby limiting the axial separation of the fourth connector 324 and the second connector 330, thereby rotatably connecting the fourth connector 324 and the second connector 330.

[0088] The latching member 360 includes a first latching portion and a second latching portion. The first and second latching portions are cooperatively mounted at the connection between the fourth connector 324 and the second connector 330. The relative rotation between the fourth connector 324 and the second connector 330 is not affected. A first latching hole is provided at each end of the first latching portion. A second latching hole is provided at each end of the second latching portion. The fourth connector 324 is provided with a plurality of latching protrusions. After the first and second latching portions are cooperatively mounted at the connection between the fourth connector 324 and the second connector 330, the plurality of latching protrusions on the fourth connector 324 are respectively positioned in the first latching holes provided at each end of the first latching portion and in the second latching holes provided at each end of the second latching portion, thereby engaging with the connection between the fourth connector 324 and the second connector 330, thereby restricting axial separation between the fourth connector 324 and the second connector 330. Of course, the plurality of latching protrusions may also be provided on the second connector 33, and this is not limited in this disclosure.

[0089] In another embodiment, the air duct 320 and the second connector 330 are magnetically connected along the axial direction to form a restriction on the separation of the air duct 320 and the second connector 330 in the axial direction.

[0090] As shown in Figure 22, a first magnetic member 325 is provided on the fourth connector 324 of the air duct 320, and a second magnetic member 335 is provided on the second connector 330. The first magnetic member 325 and the second magnetic member 335 attract each other, thereby magnetically connecting the fourth connector 324 and the second connector 330 axially through a magnetic force, thereby preventing the fourth connector 324 and the second connector 330 from separating in the axial direction.

[0091] The first magnetic member 325 can be a magnet, such as an annular magnet. The annular magnet is sleeved on the fourth connector 324. The magnet can be fixed to the fourth connector 324 by screws, or by clamping, bonding, or other methods.

[0092] The second magnetic member 335 can be a magnetic metal member. This metal member can be embedded in the second connector 330 during the injection molding process when the second structural member 330 is formed. The magnetic attraction between the metal member and the magnet creates an axial magnetic connection between the fourth connector 324 and the second connector 330. This also ensures a rotational connection between the fourth connector 324 and the second connector 330.

[0093] Of course, the magnet can also be set on the fourth joint part 324, and the metal part can be set in the second joint part 330; or, magnets can be set on both the second joint part 330 and the fourth joint part 324 to connect the fourth joint part 324 and the second joint part 330 along the axial magnetic attraction. The present disclosure does not limit this.

[0094] As shown in Figure 22, the end of the second connector 330 can be inserted into the end of the fourth connector 324 to form a radial limit for the connection between the fourth connector 324 and the second connector 330. Of course, the end of the fourth connector 324 can also be inserted into the end of the second connector 330 to form a radial limit for the connection between the fourth connector 324 and the second connector 330.

[0095] In another embodiment, the air duct 320 and the second connector 330 are axially engaged with each other to form a restriction on the axial separation of the air duct 320 and the second connector 330 .

[0096] As shown in Figure 23, a first slot 326 is formed on the end of the fourth joint member 324 of the duct wind 320, and the notch of the first slot 326 faces the inner side of the fourth joint member 324; a first protrusion 336 is formed on the end of the second joint member 330, and the first protrusion 336 extends toward the periphery of the second joint member 330; after the second joint member 330 is connected to the fourth joint member 324, the first protrusion 336 is located in the first slot 326, and the first protrusion 336 is located in the first slot 326, so that the connection position of the fourth joint member 324 and the second joint member 330 is limited in the radial direction; at the same time, the fourth joint member 324 and the second joint member 330 are rotationally connected.

[0097] The first locking groove 326 can be an annular groove, and the first locking protrusion 336 can be an annular protrusion or protrusions arranged at intervals. The present disclosure does not limit this, and it only needs to achieve the radial limit of the connection position between the fourth connector 324 and the second connector 330.

[0098] As shown in Figure 24, a first latching groove 326 and a third latching protrusion 327 are formed on the end of the fourth connector 324 of the duct air duct 320. The notch of the first latching groove 326 faces the inner side of the fourth connector 324. A first latching protrusion 336 and a second latching protrusion 337 are formed on the end of the second connector 330. The first and second latching protrusions 336, 337 extend toward the periphery of the second connector 330. A second latching groove 338 is formed between the first and second latching protrusions 336, 337. The notch of the second latching groove 338 faces the periphery of the second connector 330. When the second connector 330 is connected to the fourth connector 324, the first latching protrusion 336 is located in the first latching groove 326, and the third latching protrusion 327 is located in the second latching groove 338. By having the first latching protrusion 336 located in the first latching groove 326 and the third latching protrusion 327 located in the second latching groove 338, the connection position between the fourth joint member 324 and the second joint member 330 is limited in the radial direction; at the same time, the fourth joint member 324 and the second joint member 330 are also rotationally connected.

[0099] The first engaging groove 326 can be an annular groove, and the first engaging protrusions 336 can be an annular protrusion or protrusions arranged at intervals. The second engaging groove 338 can be an annular groove, and the third engaging protrusions 327 can be an annular protrusion or protrusions arranged at intervals. This disclosure is not limited to this, and it is sufficient to achieve radial positioning of the connection between the fourth connector 324 and the second connector 330.

[0100] It should be noted that, in the present disclosure, when the fourth joint member 324 and the second joint member 330 are rotationally connected, the structure for limiting the axial separation of the fourth joint member 324 and the second joint member 330 is not limited to the technical solutions provided in the above-mentioned embodiments of the present disclosure. Any structure that can realize the connection position between the fourth joint member 324 and the second joint member 330 being at the radial upper limit position falls within the scope of protection of the present disclosure.

[0101] Specifically, the end of the air duct body 323 forming the third air inlet 321 is bonded to the first air outlet 312 of the first connector 310. The end of the air duct body 323 forming the third air inlet 321 can extend into the first air duct through the first air outlet 312 of the first connector 310. The air duct body 323 is bonded to the first connector 310 by applying adhesive or double-sided tape between the air duct 320 and the first connector 310. This bonding reduces the number of components in the rotating shaft assembly 30, lowers production costs, improves assembly efficiency and maintenance efficiency, and enhances the reliability of the connection between the air duct body 323 and the fourth connector 324.

[0102] The air duct body 323 can be a flexible tube, such as a plastic bellows, to enhance its bending performance and service life. Of course, the air duct body 323 can also be a smooth plastic hose, or a flexible, articulated rigid tube formed by connecting multiple rigid joints. The present disclosure does not limit the ability of the air duct body 323 to bend.

[0103] As shown in Figures 11 and 12, the rotating shaft member 340 includes a main body portion 343, a first rotating shaft portion 344, and a second rotating shaft portion 345. The main body portion 343 forms a first through hole 341. The first rotating shaft portion 344 and the second rotating shaft portion 345 are located on opposite sides of the main body portion 343 in the radial direction. The first rotating shaft portion 344 and the second rotating shaft portion 345 are rotatably connected to the floor brush assembly 20, thereby realizing the pivot connection between the rotating shaft assembly 30 and the floor brush assembly 20. The body 10 can swing left and right and back and forth through the rotating shaft assembly 30, thereby improving the flexibility of the relative movement between the body 10 and the floor brush assembly 20.

[0104] As shown in Figure 13, the shaft member 340 is provided with a shaft connecting member 342. One end of the shaft connecting member 342 is fixedly connected to the main body 343, and the other end of the shaft connecting member 342 is rotatably connected to the third joint member 350, thereby realizing the rotational connection between the shaft member 340 and the third joint member 350.

[0105] In one embodiment of the present disclosure, a cleaning device is provided, as shown in Figures 1 to 5 . The cleaning device includes a body 10, a floor brush assembly 20, and the shaft assembly 30 described in the above embodiments. The body 10 and the floor brush assembly 20 are rotatably connected via the shaft assembly 30, allowing the body 10 to switch between an upright position and a lying position.

[0106] As shown in Figures 13 and 16 , the third connector 350 is provided with a positioning portion 351. The floor brush assembly 20 includes a housing 210 having a positioning slot 220 formed therein. When the housing 10 is in the upright position, the positioning portion 351 is located in the positioning slot 220, restricting the left-right swing of the housing 10 in the upright position.

[0107] As shown in Figures 17 and 18, a protrusion 346 is provided on the outer circumferential surface of the first rotating shaft portion 344 and the second rotating shaft portion 345. A trigger switch 230 is provided in the floor brush assembly 20. When the body 10 leaves the upright position, the protrusion 346 triggers the trigger switch 230. By providing the protrusion 346 and the trigger switch 230, a convenient switch of the floor brush assembly 20 is achieved. When not in use, the body 10 is in the upright position, and the protrusion 346 abuts against the trigger switch 230, causing the trigger switch 230 to be in an off state. When the cleaning device needs to be used, the body 10 rotates relative to the floor brush assembly 20 and leaves the upright position. The protrusion 346 separates from the trigger switch 230, causing the trigger switch 230 to be in a closed state, and the floor brush assembly 20 starts working to clean the floor.

[0108] By providing protrusions 346 on the outer circumferential surfaces of the first rotating shaft portion 344 and the second rotating shaft portion 345, no matter whether the trigger switch 230 is located on the left or right side of the rotating shaft assembly 30, the rotating shaft member 340 can cooperate with the trigger switch 230, thereby improving the adaptability of the rotating shaft member 340.

[0109] As shown in Figure 8, a protrusion 346 is provided on the outer circumference of each of the first and second rotating shaft portions 344, 345. The protrusions 346 on the outer circumferences of the first and second rotating shaft portions 344, 345 are symmetrically arranged relative to the main body portion 343. The symmetrical arrangement of the protrusions 346 on the outer circumferences of the first and second rotating shaft portions 344, 345 relative to the main body portion 343 facilitates engagement with the trigger switch 230 in the floor brush assembly 20. Of course, the protrusion 346 may be provided on only the outer circumference of the first or second rotating shaft portion 344, 345, and this is not a limitation of the present disclosure.

[0110] As shown in FIG19 , the trigger switch 230 includes a switch body 231, an elastic arm 232 connected to the switch body 231, and a contact point 233 provided on the switch body 231. The elastic arm 232 and the trigger point 233 can be positive and negative. When the cleaning device is not in use, the body 10 is in a vertical position, and the protrusion 346 abuts against the trigger switch 230, causing the elastic arm 232 to abut against the contact point, thereby placing the trigger switch 230 in an open state. When the cleaning device is needed, the body 10 rotates relative to the brush assembly 20 and leaves the vertical position. The protrusion 346 separates from the elastic arm 232, causing the elastic arm 232 to recover its elastic deformation and be separated from the trigger point, thereby placing the trigger switch 230 in a closed state.

[0111] Alternatively, a trigger switch 230 with multiple trigger points can be configured so that the protrusion 346 triggers different points to close or open the trigger switch 230. Alternatively, a photoelectric sensor switch can be configured to close or open the switch by determining the position of the protrusion 346. This disclosure does not cover this issue; all technical solutions related to switch type conversion fall within the scope of this disclosure.

[0112] The trigger switch 230 can control the operation of the floor brush assembly 20. For example, by rotating the body 10 to trigger the trigger switch 230, the floor brush assembly 20 can be turned on to rotate the cleaning roller brush to clean the surface to be cleaned. Alternatively, after triggering the trigger switch 230, the entire machine can be controlled to operate, such as the fan in the dirt suction assembly on the body 10 and the liquid supply pump in the floor brush assembly 20. Of course, the trigger switch 230 can also control the opening and closing of certain components, so that the trigger switch 230 cooperates with other switching components to achieve complete control of the cleaning device, and this disclosure is not limited to this.

[0113] As shown in Figure 17, the outer circumferential surfaces of the first and second rotating shaft portions 344 and 345 are provided with limiting protrusions 347, and the floor brush assembly 20 is provided with a damping assembly 240. When the housing 10 is in the upright position, the damping assembly 240 damps the limiting protrusions 347 in the direction of rotation of the rotating shaft 340, thereby ensuring that the housing 10 remains relatively stable in the upright position when rotation is not required. When the housing 10 needs to be rotated from the upright position, an external force can be applied to rotate the housing 10, causing it to overcome the damping provided by the damping assembly 240 and rotate toward the reclining position.

[0114] Specifically, as shown in Figures 20 and 21, the damping assembly 240 includes an elastic member 242 and a damping block 241. The damping block 241 is disposed on the elastic member 242. When the machine body 10 rotates from the upright position to the reclining position, the first limiting protrusion 347 presses against the damping block 241. When the external force applied to the machine body 10 exceeds the damping provided by the elastic member 242, the damping block 241 is compressed by the elastic member 242 and retracts, allowing the first limiting protrusion 347 to bypass the damping block 241.

[0115] The damping can be adjusted by adjusting the compression ratio of the elastic member 242. The damping components 240 corresponding to the first shaft portion 344 and the second shaft portion 345 can be identical, thereby reducing the number of parts, lowering production costs, and improving assembly efficiency.

[0116] Of course, the limiting protrusion 347 may be provided circumferentially only on the outer circumference of the first rotating shaft portion 344 , or the limiting protrusion 347 may be provided circumferentially only on the outer circumference of the second rotating shaft portion 345 , and the present disclosure does not impose any limitation on this.

[0117] As shown in Figures 20 and 21, the damping assembly 240 further includes a guide member 243. The guide member 243 is formed with a guide groove. The guide member 243 is fixedly mounted in the floor brush assembly 20 and is in a squeeze position. When the damping block 241 is squeezed by the limiting protrusion 347, the damping block 241 can move downward in the guide groove of the guide member 243. When the damping block 241 is not squeezed by the limiting protrusion 347, the damping block 241 moves upward along the guide groove under the action of the elastic restoring force of the elastic member 242 and returns to the damping position.

[0118] The elastic member 242 can be a spring. The elastic force of the elastic member is linear and has high reliability. Of course, the elastic member 242 can also be a rubber member or other elastic structural member, and the present disclosure does not limit this.

[0119] As shown in Figures 11 and 12, stop protrusions 348 are further provided on the outer circumferences of the first and second rotational shaft portions 344, 345. When the machine body 10 rotates from the lying position toward the upright position, the stop protrusions 348 abut against the structure in the floor brush assembly 20, restricting the machine body 10 from further rotation away from the lying position, thereby positioning the machine body 10 in the upright position. This ensures that the machine body 10 is positioned in the upright position, facilitating user use and improving ease of use. Furthermore, this prevents the machine body 10 from continuing to rotate away from the lying position from the upright position, thereby improving the reliability of the cleaning device.

[0120] The outer circumferences of the first and second rotational shaft portions 344, 345 are each provided with a stopper protrusion 348. This means that the first and second rotational shaft portions 344, 345 on either side can be rotationally limited by the stopper protrusions 348, thereby improving the positioning of the housing 10 when the housing 10 is in the upright position. Alternatively, the stopper protrusion 348 may be provided on the outer circumference of only one of the first and second rotational shaft portions 344, 345, and this is not a limitation of the present disclosure.

[0121] The structure in the floor brush assembly 20 that abuts the stop protrusion 348 can be the guide member 243 in the damping assembly 240. The guide member 243 is fixedly mounted in the floor brush assembly 20. The limiting protrusion 347 cooperates with the damping block 241 in the guide member 243 to achieve damping when the body 10 is in the upright position. When the body 10 rotates toward the upright position, the stopping protrusion 348 can abut against the open side of the guide member 243, forming a limit to the continued rotation of the body 10, thereby positioning the body 10 in the upright position. Of course, the stopping protrusion 348 can also abut against other fixed structural members in the floor brush assembly 20 to achieve a limiting effect, such as the bottom shell of the floor brush assembly 20, or an independently provided abutting structure in the floor brush assembly 20, which can cooperate with the stopping protrusion 348 to limit the body 10 in the upright position. This disclosure does not impose any restrictions on this.

[0122] Specifically, a handle assembly may be further provided on the body 10. The handle assembly is connected to one end of the body 10 away from the floor brush assembly 20 and is used for a user to operate and hold. The user holds the handle assembly to control the floor brush assembly 20 to perform a cleaning task on the surface being cleaned (e.g., the floor).

[0123] The body 10 extends longitudinally, the handle assembly is connected to the upper end of the body 10, and the floor brush assembly 20 is connected to the lower end of the body 10. The body 10 and the floor brush assembly 20 are rotatably connected so that the handle assembly and the body 10 can rotate relative to the floor brush assembly 20, thereby changing the operating angle and flexibly adjusting the cleaning posture.

[0124] Specifically, the floor brush assembly 20 includes a cleaning component located at its bottom, such as a cleaning roller brush. The number of the cleaning roller brushes is, for example, one or more, for example, two. The cleaning roller brush can rotate at high speed to mop the floor.

[0125] Specifically, as shown in Figure 2, the cleaning device also includes a clean water tank 120. Both the clean water tank 120 and the dirty water tank 110 are mounted on the machine body 10. The clean water tank 120 contains cleaning fluid, such as clean water. This clean water is supplied to the cleaning roller via a clean water pipeline, which wets the surface of the cleaning roller and enables the cleaning roller to perform wet cleaning on the surface being cleaned. When the cleaning roller performs wet cleaning, it generates dirty water on the surface being cleaned. This dirty water can be recycled into the dirty water tank 110 via a wastewater recycling pipeline.

[0126] Specifically, the cleaning device also includes a fan. The fan is disposed within the body 10 and is configured to circulate air within the air duct, providing power for wastewater recovery. The suction generated by the fan draws wastewater through the air duct into the wastewater tank 110. After the cleaning device completes its cleaning operation, the wastewater collected in the wastewater tank 110 can be discarded. This maintains the entire air duct within the cleaning device, particularly the wastewater recovery duct, dryness within the wastewater tank 110 to prevent the accumulation of undesirable contaminants.

[0127] In addition, according to another aspect of the present disclosure, a cleaning system is provided, comprising: a base station; and the cleaning device described above. The cleaning device can be docked on the base station. For example, the base station is configured to charge the cleaning device. Alternatively, for example, the base station is also configured to perform cleaning on the cleaning device.

[0128] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the appended claims.

Claims

1. A rotating shaft assembly for a cleaning device, comprising: A first joint member, the first joint member includes a first air inlet, a first air outlet, and a first air duct located between the first air inlet and the first air outlet; A second joint member, the second joint member includes a second air inlet, a second air outlet, and a second air duct located between the second air inlet and the second air outlet; And A duct, the duct includes a third air inlet, a third air outlet, and a third air duct located between the third air inlet and the third air outlet, the third air inlet is connected to the first air outlet, and the third air outlet is connected to the second air inlet; Wherein, the second joint member can rotate between a vertical position and a lying position; when the second joint member is in the vertical position, the duct includes a second duct section connected to the second joint member and a first duct section connected to the first joint member; the second joint member and the duct have a connection surface; the first included angle between the central axis of the second duct section and the direction parallel to the connection surface and extending in the backward direction of the cleaning device is an obtuse angle.

2. The rotating shaft assembly according to claim 1, further comprising: A rotating shaft member, the rotating shaft member is formed with a first through hole, and the first joint member, the duct and the second joint member are connected and then passed through the first through hole of the rotating shaft member.

3. The rotating shaft assembly according to claim 2, further comprising: A third joint member, the third joint member is formed with a second through hole, and the first joint member, the duct and the second joint member are connected and then passed through the second through hole of the rotating shaft member; the third joint member is located on the side of the rotating shaft member close to the second joint member.

4. The rotating shaft assembly according to claim 3, wherein the third air outlet of the duct is rotatably connected to the second air inlet of the second joint member, and the third joint member is rotatably connected to the rotating shaft member.

5. The rotating shaft assembly according to claim 4, wherein when the second joint member is in the vertical position, the second included angle between the rotating surface of the third joint member and the rotating shaft member and the direction parallel to the cleaning surface of the cleaning device and extending in the backward direction of the cleaning device is an obtuse angle.

6. The shaft assembly according to claim 5, characterized in that, Wherein the first included angle is equal to the second included angle.

7. The rotating shaft assembly according to claim 4, wherein the duct and the second joint member are connected by a buckle member, and the buckle member forms a restriction on the axial separation of the duct and the second joint member; or, the duct and the second joint member are axially clamped; or, the duct and the second joint member are axially magnetically connected.

8. The rotating shaft assembly according to claim 3, wherein the second joint member includes a first body section and a second body section, the first body section is connected to the second body section, and the central axes of the first body section and the second body section intersect; the second air inlet is located on the first body section, and the second air outlet is located on the second body section; Among them, The central axis of the first body section intersects at least one of the central axis of the rotating shaft member and the central axis of the third joint member.

9. The rotating shaft assembly according to claim 8, wherein the central axis of the rotating shaft member is parallel to the central axis of the third joint member.

10. The rotating shaft assembly according to claim 1, wherein the air duct includes: An air duct body; And A fourth joint member, the fourth joint member including opposite first and second ends, the first end being connected to the second air inlet of the second joint member, and the second end being connected to one end of the air duct body.

11. The rotating shaft assembly according to claim 10, wherein one end of the air duct body forming the third air inlet is connected to the first air outlet of the first joint member.

12. A cleaning device, comprising: A body; A floor brush assembly; The rotating shaft assembly according to any one of claims 1 to 11, the body and the floor brush assembly being rotatably connected through the rotating shaft assembly, and the body being capable of switching between an upright position and a lying position.

13. The cleaning device according to claim 12, wherein the rotating shaft assembly further includes a third joint member, and a positioning portion is provided on the third joint member; the floor brush assembly includes a housing, and a positioning groove is formed on the housing; when the body is in the upright position, the positioning portion is located in the positioning groove.

14. The cleaning device according to claim 12, wherein the rotating shaft member includes a body portion, a first rotating shaft portion and a second rotating shaft portion, the body portion forms the first through hole, the first rotating shaft portion and the second rotating shaft portion are located on opposite sides in the radial direction of the body portion, and the first rotating shaft portion and the second rotating shaft portion are rotatably connected to the floor brush assembly; Among them, A raised portion is provided on the outer circumferential surface of at least one of the first rotating shaft portion and the second rotating shaft portion, and a trigger switch is provided in the floor brush assembly. When the body leaves the upright position, the raised portion triggers the trigger switch.

15. The cleaning device according to claim 14, wherein the raised portions are respectively provided on the outer circumferential surfaces of the first rotating shaft portion and the second rotating shaft portion, and the raised portions on the outer circumferential surfaces of the first rotating shaft portion and the second rotating shaft portion are symmetrically arranged relative to the body portion.

16. The cleaning device according to claim 14, wherein a limiting projection is provided on the outer circumferential surface of at least one of the first rotating shaft portion and the second rotating shaft portion along the circumferential direction; a damping assembly is provided in the floor brush assembly. When the body is in the upright position, the damping assembly forms a damping force for rotating the limiting projection in the rotating direction of the rotating shaft member.

17. The cleaning device according to claim 16, wherein the damping assembly includes an elastic member and a damping block, and the damping block is provided on the elastic member; when the body rotates from the upright position towards the lying position, the limiting projection presses the damping block, and the damping block retracts through the elastic member, so that the limiting projection passes through the damping assembly.

18. A cleaning system, comprising: A base station; And The cleaning device according to any one of claims 12 to 17, which can be docked on the base station.

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