Vacuum cleaner, cleaning equipment and vacuum cleaner system

Abstract

The utility model discloses a vacuum cleaner, a cleaning device and a vacuum cleaner system, the vacuum cleaner is used for filtering airflow, the vacuum cleaner comprises a dust cup, the dust cup is provided with an air inlet, an air outlet and a dust cup opening, the airflow enters the dust cup through the air inlet and is discharged through the air outlet, and the dust cup opening is provided with a dust cup cover which can be opened and closed; the filtering assembly is arranged in the dust cup, the filtering assembly comprises a first-stage cyclone filter and a second-stage cyclone filter located at the downstream of the first-stage cyclone filter, and the second-stage cyclone filter is configured to filter airflow filtered by the first-stage cyclone filter; wherein the vacuum cleaner has a working state when the dust cup cover is closed and a cleaning state when the dust cup cover is opened; and in the working state, the primary cyclone filter can rotate relative to the secondary cyclone filter.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning equipment technology, specifically relating to a vacuum cleaner, cleaning equipment, and vacuum cleaner system. Background Technology

[0002] As living standards improve, people have higher and higher requirements for their home environment. To meet these growing needs, a variety of smart home appliances have emerged on the market. Vacuum cleaners, due to their ease of operation and use, are increasingly becoming part of people's lives, integrated into homes and offices, and have become an important and popular member of the small appliance category.

[0003] The dust cup is an important component of a vacuum cleaner. Dirty airflow is delivered to the dust cup, where the filter components separate hair and dust from the dirty airflow. The clean airflow is then delivered to the main unit and finally discharged into the external environment by the main unit.

[0004] In existing technologies, filter components often malfunction due to clogged filter pores caused by dirt. This is because, as the dirty airflow rotates around the filter component, larger debris such as hair easily becomes entangled on it, affecting the filter's airflow efficiency. Therefore, it is necessary to improve the existing technology to overcome these shortcomings. Utility Model Content

[0005] Therefore, the technical problem to be solved by this utility model is to provide a vacuum cleaner, cleaning equipment and vacuum cleaner system that can solve the problem of hair entanglement.

[0006] To solve the above-mentioned technical problems, this utility model provides a vacuum cleaner for filtering airflow, comprising: a dust cup having an air inlet, an air outlet, and a dust cup opening, wherein airflow enters the dust cup through the air inlet and exits through the air outlet, and a dust cup cover is provided at the dust cup opening; and a filter assembly disposed within the dust cup, the filter assembly including a primary cyclone filter; wherein the vacuum cleaner has a working state when the dust cup cover is closed and a cleaning state when the dust cup cover is open; in the working state, the primary cyclone filter is rotatable relative to the dust cup.

[0007] Preferably, the primary cyclone filter is rotated by the airflow entering the dust cup from the air inlet, wherein the rotation direction of the primary cyclone filter is consistent with the rotation direction of the airflow entering the dust cup from the air inlet.

[0008] Preferably, the primary cyclone filter includes a filter support, a filter screen disposed on the filter support, and a blade assembly disposed on the outer peripheral surface of the filter support, wherein the blade assembly is configured to cooperate with the airflow entering the dust cup from the air inlet to drive the primary cyclone filter to rotate.

[0009] Preferably, the blade group includes at least a first blade group located below the filter screen, and the air inlet is distributed above the first blade group.

[0010] Preferably, the first blade group includes a plurality of first blades spaced apart circumferentially along the filter support; wherein the first blades extend in a direction parallel to the axial direction of the filter support, or the first blades are inclined at a preset angle relative to the rotation axis of the primary cyclone filter, the preset angle being an acute angle.

[0011] Preferably, the blade group further includes a second blade group, which is located above the filter screen and at a height position of the filter screen support corresponding to the air inlet.

[0012] Preferably, the filtration assembly includes a secondary cyclone filter located downstream of the primary cyclone filter. The secondary cyclone filter is configured to filter the airflow filtered by the primary cyclone filter. The primary cyclone filter is rotatable relative to the secondary cyclone filter. The secondary cyclone filter includes a multi-cone filter structure and a secondary dust collection section disposed below the multi-cone filter structure. The primary cyclone filter is rotatably disposed between the top end of the multi-cone filter structure and the bottom end of the secondary dust collection section.

[0013] Preferably, the primary cyclone filter is rotatably disposed on the outer periphery of the multi-cone filter structure and the secondary dust collection section via a bearing assembly; the bearing assembly includes at least a first bearing located between the primary cyclone filter and the secondary dust collection section, the first bearing being sleeved on the secondary dust collection section and interference-fitted to the bottom end of the primary cyclone filter;

[0014] The secondary dust collection unit is also fitted with a limiting member located below the first bearing, and the limiting member is configured to support the first bearing from the bottom.

[0015] Preferably, the bearing assembly further includes a plurality of second bearings located between the primary cyclone filter and the multi-cone filter structure. The plurality of second bearings are disposed on the inner peripheral wall of the primary cyclone filter or the outer peripheral wall of the multi-cone filter structure. The plurality of second bearings are configured such that the friction between the primary cyclone filter and the multi-cone filter structure is rolling friction.

[0016] The multi-cone filter structure is fixedly provided with an upper cover, which is located above the primary cyclone filter and is used to limit the primary cyclone filter from the top.

[0017] This utility model provides a vacuum cleaner for filtering airflow, comprising: a dust cup having an air inlet, an air outlet, and a dust cup opening, wherein airflow enters the dust cup through the air inlet and exits through the air outlet, and a dust cup cover is provided at the dust cup opening; and a filter assembly disposed within the dust cup, the filter assembly comprising a primary cyclone filter and a secondary cyclone filter located downstream of the primary cyclone filter, the secondary cyclone filter being configured to filter the airflow filtered by the primary cyclone filter; wherein the vacuum cleaner has an operating state when the dust cup cover is closed and a cleaning state when the dust cup cover is open;

[0018] In the operating state, the primary cyclone filter is rotatable relative to the secondary cyclone filter. A first dust-blocking structure is provided between the primary cyclone filter and the dust cup and / or between the primary cyclone filter and the secondary cyclone filter. The first dust-blocking structure is configured to block airflow entering the dust cup from the air inlet from entering between the primary cyclone filter and the secondary cyclone filter through the top gap between them.

[0019] Preferably, the first dust-blocking structure consists of bristles arranged circumferentially on the outer peripheral wall of the top of the primary cyclone filter, the bristles abutting against the inner wall of the dust cup; or,

[0020] The first dust-blocking structure is a sponge arranged circumferentially on the outer peripheral wall of the top of the primary cyclone filter, and the sponge abuts against the inner wall of the dust cup.

[0021] Preferably, an installation groove is recessed on the outer peripheral wall of the top of the primary cyclone filter, and a portion of the first dust-blocking structure is accommodated in the installation groove.

[0022] Preferably, the secondary cyclone filter includes a multi-cone filtration structure and a secondary dust collection section located below the multi-cone filtration structure, and the primary cyclone filter is rotatably disposed between the top end of the multi-cone filtration structure and the bottom end of the secondary dust collection section;

[0023] The first dust-blocking structure is configured to block the airflow entering the dust cup from the air inlet from entering between the primary cyclone filter and the multi-cone filter structure through the top gap between them;

[0024] A second dust-blocking structure is also provided between the primary cyclone filter and the secondary dust collection unit. The second dust-blocking structure is configured to prevent dirt filtered by the multi-cone filter structure from entering the gap between the primary cyclone filter and the secondary dust collection unit.

[0025] Preferably, the second dust-blocking structure includes a first baffle rib disposed on the top edge of the secondary dust collection section and a second baffle rib disposed on the inner wall of the primary cyclone filter, wherein the first baffle rib and the second baffle rib form a labyrinth-type sealing structure.

[0026] This utility model provides a vacuum cleaner for filtering airflow, comprising: a dust cup having an air inlet and an air outlet, wherein airflow enters the dust cup through the air inlet and exits through the air outlet; and a filter assembly disposed within the dust cup, the filter assembly comprising a primary cyclone filter and a secondary cyclone filter located downstream of the primary cyclone filter, the secondary cyclone filter being configured to filter the airflow filtered by the primary cyclone filter; wherein the bottom end of the primary cyclone filter is mounted on the secondary cyclone filter via a first bearing, thereby enabling the primary cyclone filter to rotate relative to the secondary cyclone filter.

[0027] Preferably, the first bearing is sleeved on the secondary cyclone filter and is interference-fitted to the bottom end of the primary cyclone filter;

[0028] The bottom end of the secondary cyclone filter is fitted with a limiting member located below the first bearing, and the limiting member is configured to support the first bearing from the bottom.

[0029] Preferably, the secondary cyclone filter has a top cover that limits the primary cyclone filter from the top.

[0030] Preferably, the secondary cyclone filter includes a multi-cone filter structure, a secondary dust collection section disposed below the multi-cone filter structure, and a top cover disposed above the multi-cone filter structure. The primary cyclone filter is located on the outer periphery of the secondary cyclone filter and is rotatably disposed between the top end of the multi-cone filter structure and the bottom end of the secondary dust collection section via the first bearing.

[0031] Preferably, a plurality of second bearings are provided between the primary cyclone filter and the multi-cone filter structure. The plurality of second bearings are disposed on the inner peripheral wall of the primary cyclone filter or the outer peripheral wall of the multi-cone filter structure. The plurality of second bearings are configured such that the friction between the primary cyclone filter and the multi-cone filter structure is rolling friction.

[0032] This utility model provides a vacuum cleaner for filtering airflow, comprising: a dust cup; and a filter assembly disposed within the dust cup, the filter assembly including a rotatable primary cyclone filter and a secondary cyclone filter at least partially located within the primary cyclone filter, the secondary cyclone filter being configured to filter the airflow filtered by the primary cyclone filter; wherein the bottom of the filter assembly and the bottom of the dust cup are spaced apart in the vertical direction to form a dust storage space.

[0033] Preferably, the primary cyclone filter is rotatably disposed on the outer periphery of the secondary cyclone filter via a bearing assembly, wherein the bearing assembly is located between the primary cyclone filter and the secondary cyclone filter, and the primary cyclone filter is driven to rotate by the airflow in the dust cup.

[0034] Preferably, the dust cup is provided with an air inlet and an air outlet, and the primary cyclone filter is rotated by the airflow entering the dust cup from the air inlet, wherein the rotation direction of the primary cyclone filter is consistent with the rotation direction of the airflow entering the dust cup from the air inlet.

[0035] Preferably, the primary cyclone filter includes a filter screen support sleeved on the outer periphery of the secondary cyclone filter, a filter screen disposed on the filter screen support, and a blade assembly disposed on the outer peripheral surface of the filter screen support, wherein the blade assembly is configured to cooperate with the airflow entering the dust cup from the air inlet to drive the primary cyclone filter to rotate.

[0036] Preferably, the blade group includes at least a first blade group located below the filter screen, and the air inlet is distributed above the first blade group.

[0037] Preferably, the blade group further includes a second blade group, which is located above the filter screen and at a height position of the filter screen support corresponding to the air inlet.

[0038] Preferably, the secondary cyclone filter includes a multi-cone filter structure and a secondary dust collection section disposed below the multi-cone filter structure, and the primary cyclone filter is rotatably disposed between the top end of the multi-cone filter structure and the bottom end of the secondary dust collection section.

[0039] Preferably, the bearing assembly includes at least a first bearing located between the primary cyclone filter and the secondary dust collection section, the first bearing being sleeved on the secondary dust collection section and interference-fitted to the bottom end of the primary cyclone filter;

[0040] The secondary dust collection unit is also fitted with a limiting member located below the first bearing, and the limiting member is configured to support the first bearing from the bottom.

[0041] Preferably, the bearing assembly further includes a plurality of second bearings located between the primary cyclone filter and the multi-cone filter structure. The plurality of second bearings are disposed on the inner peripheral wall of the primary cyclone filter or the outer peripheral wall of the multi-cone filter structure. The plurality of second bearings are configured such that the friction between the primary cyclone filter and the multi-cone filter structure is rolling friction.

[0042] The multi-cone filter structure is fixedly provided with an upper cover, which is located above the primary cyclone filter and is used to limit the primary cyclone filter from the top.

[0043] Preferably, the bottom of the secondary cyclone filter is provided with a suspended secondary dust discharge port, which is set lower than the bottom of the primary cyclone filter.

[0044] Preferably, the bottom opening of the primary cyclone filter is provided, and the secondary dust discharge port extends below the bottom opening of the primary cyclone filter.

[0045] This utility model provides a cleaning device, including the vacuum cleaner as described above.

[0046] This utility model discloses a vacuum cleaner system, comprising: a vacuum cleaner and a dust collection station connected to the vacuum cleaner; the vacuum cleaner includes: a dust cup with an air inlet, an air outlet, and a dust cup opening, the dust cup opening being closable with a dust cup cover; a filter assembly disposed within the dust cup, the filter assembly including a primary cyclone filter and a secondary cyclone filter located downstream of the primary cyclone filter, the primary cyclone filter being rotatably disposed relative to the secondary cyclone filter; the secondary cyclone filter being configured to filter the airflow filtered by the primary cyclone filter;

[0047] The vacuum cleaner has a working state when the dust cup cover is closed and a cleaning state when the dust cup cover is open after docking with the dust collection station. In the working state, the primary cyclone filter is driven to rotate by the airflow entering the dust cup from the air inlet. In the cleaning state, the primary cyclone filter can rotate under the action of the negative pressure suction airflow provided by the dust collection station.

[0048] The technical solution provided by this utility model has the following advantages:

[0049] In this embodiment, the primary cyclone filter can rotate relative to the dust cup body and the secondary cyclone filter. After the primary cyclone filter rotates, there is a relative motion tendency between the hair and the primary cyclone filter. As a result, the hair is less likely to get tangled on the outer circumferential wall of the primary cyclone filter, reducing the occurrence of clogging of the primary cyclone filter due to hair entanglement. This improves the air outlet efficiency of the primary cyclone filter while ensuring the filtration effect.

[0050] In addition, when the primary cyclone filter rotates, the dust and impurities attached to it will be partially removed by the centrifugal force generated by the primary cyclone filter, which can achieve self-cleaning to a certain extent. Attached Figure Description

[0051] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0052] Figure 1 A diagram showing the positional relationship between the vacuum cleaner and the main unit provided by this utility model;

[0053] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0054] Figure 3 for Figure 2 A diagram showing the dust cup opening when the dust cup lid is open;

[0055] Figure 4 This is a cross-sectional structural diagram of the filter assembly;

[0056] Figure 5 This is a schematic diagram showing the exploded structure of the filter component;

[0057] Figure 6 This is a three-dimensional structural diagram of a primary cyclone filter;

[0058] Figure 7 This is a schematic diagram showing the exploded structure between the secondary dust collection unit and the limiting component;

[0059] Figure 8 A three-dimensional structural diagram of a multi-cone filter structure;

[0060] Figure 9 This is a schematic diagram of the three-dimensional structure of the top cover;

[0061] Figure 10 for Figure 4Enlarged structural diagram of region A in the middle;

[0062] Figure 11 for Figure 3 One of the enlarged structural diagrams of region B in the middle;

[0063] Figure 12 for Figure 3 Second enlarged structural diagram of region B in the middle;

[0064] Figure 13 for Figure 4 A magnified structural diagram of region C in the middle. Detailed Implementation

[0065] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0066] It should be noted that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0067] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0068] Example 1

[0069] This utility model provides a vacuum cleaner, which in one application scenario is a dust cup device on a vacuum cleaner used to filter airflow (dirty air). It is understood that the vacuum cleaner can also be a filter structure used to filter dirty air in other application scenarios, such as an air purifier. The following description uses the dust cup assembly of a vacuum cleaner as an example, but based on the above description, the scope of protection of this specification is not limited thereto.

[0070] like Figures 1 to 3As shown, the vacuum cleaner 1000 includes a dust cup 100 and a filter assembly 300 disposed within the dust cup 100 for filtering dirty air. The dust cup 100 includes a dust cup body 110 and a dust cup cover 120. The dust cup body 110 has an air inlet 111, an air outlet 112, and a dust cup opening 113. The dust cup cover 120 is closable at the dust cup opening 113. Preferably, one side of the dust cup cover 120 is hinged to the dust cup body 110 via a hinge shaft 121, and the opposite side is connected to the dust cup body 110 via a snap-fit ​​structure 122. The air inlet 111 is connected to the dust inlet pipe (not shown) of the vacuum cleaner, and the air outlet 112 is connected to the air inlet of the main motor (not shown) of the vacuum cleaner. The main motor creates a negative pressure state inside the dust cup body 110, and the dirty airflow in the dust inlet pipe enters the dust cup body 110 through the air inlet 111. Finally, after being filtered by the filter assembly 300, it is discharged from the dust cup body 110 through the air outlet 112. For ease of description, the direction of the dust cup cover 120 is defined as downward, that is, the dust cup cover 120 is located at the bottom of the dust cup 100; the direction of the air outlet 112 is defined as upward, that is, the air outlet 112 is located at the top of the dust cup 100.

[0071] The filter assembly 300 is disposed inside the dust cup body 110 of the dust cup 100 and is used to filter the dirty airflow entering the dust cup body 110. The bottom of the filter assembly 300 and the bottom of the dust cup 100 (dust cup cover 120) are spaced apart in the vertical direction to form a dust storage space. When the dust storage space is full and the dust cup 100 needs to be cleaned, the above-mentioned snap-fit ​​structure 122 is operated to disengage the other side of the dust cup cover 120 from the dust cup body 110; after the dust cup 100 is cleaned, the operator rotates the dust cup cover 120 and presses the dust cup cover 120, and the snap-fit ​​structure 122 causes the dust cup cover 120 to be fastened to the dust cup opening 113.

[0072] like Figure 4 and Figure 5 As shown, the filter assembly 300 includes a primary cyclone filter 310 and a secondary cyclone filter 320 located downstream of the primary cyclone filter 310, wherein the secondary cyclone filter 320 is at least partially located within the primary cyclone filter 310. The primary cyclone filter 310 performs initial filtration to remove hair and larger dust particles from the dirty airflow. The secondary cyclone filter 320 performs further filtration based on the primary cyclone filter 310 to remove smaller dust and impurities from the dirty airflow.

[0073] This can be understood as follows: the secondary cyclone filter 320 is used to filter the airflow filtered by the primary cyclone filter 310, thereby achieving step-by-step filtration. The filter assembly 300 includes, but is not limited to, the primary cyclone filter 310 and the secondary cyclone filter 320. The filter assembly 300 may also include a tertiary cyclone filter (not shown) or a quaternary cyclone filter (not shown) located downstream of the secondary cyclone filter 320. The number of filtration stages of the cyclone filters can be determined according to actual usage. The following description uses the filter assembly 300 including the primary cyclone filter 310 and the secondary cyclone filter 320 as an example; however, based on the above description, the scope of protection of this utility model is not limited thereto.

[0074] The air inlet 111 is located on the circumferential wall of the dust cup body 110. After the dirty airflow enters the dust cup body 110 through the air inlet 111, it moves spirally along the inner circumferential wall of the dust cup body 110. Since the inner circumferential wall of the dust cup body 110 is a circular surface, the dirty airflow can rotate around the circumference of the primary cyclone filter 310.

[0075] The vacuum cleaner has an operating state when the dust cup cover 120 is closed and a cleaning state when the dust cup cover 120 is open. In the operating state, to reduce or prevent hair from becoming entangled on the primary cyclone filter 310, the primary cyclone filter 310 is rotatably disposed within the dust cup body 110. The primary cyclone filter 310 has a rotation axis X, which extends vertically. That is, the primary cyclone filter 310 can rotate relative to the dust cup body 110 and the secondary cyclone filter 320. After the primary cyclone filter 310 rotates, there is relative movement between the hair and the primary cyclone filter 310, making it less likely for hair to become entangled on the outer circumferential wall of the primary cyclone filter 310. It should be noted that the axial, radial, and circumferential directions mentioned in this specification refer to the axial, radial, and circumferential directions of the primary cyclone filter 310.

[0076] The power source driving the primary cyclone filter 310 to rotate can come from the airflow entering the dust cup 100 from the air inlet 111. For ease of explanation, the airflow entering the dust cup from the air inlet (111) is defined as the dust cup airflow. The primary cyclone filter 310 rotates under the action (driven) of the dust cup airflow. Therefore, the rotation direction of the primary cyclone filter 310 is consistent with the rotation direction of the dust cup airflow, and also the same as the direction of hair rotation and entanglement. After the dust cup airflow rotates a certain number of times in the dust cup 100, compared with the case where the primary cyclone filter 310 does not rotate, the hair rotates fewer times relative to the primary cyclone filter 310, that is, the hair entangles less, which is conducive to loosening the hair entangled on the surface of the primary cyclone filter 310, reducing the occurrence of the primary cyclone filter 310 being blocked by hair entanglement, and thus improving the air outlet efficiency of the primary cyclone filter 310 while ensuring the filtration effect.

[0077] The power source for rotating the primary cyclone filter 310 can also come from a drive mechanism (not shown), which drives the primary cyclone filter 310 to rotate within the dust cup 100 via a drive mechanism (drive motor). Alternatively, the power source for rotating the primary cyclone filter 310 can come from the user. In this case, the primary cyclone filter 310 is externally connected to an operating terminal (not shown), allowing the user to rotate the primary cyclone filter 310 via the operating terminal.

[0078] like Figure 6 As shown, the primary cyclone filter 310 has a hollow interior and openings at the top and bottom, and is disposed on the outer periphery of the secondary cyclone filter 320. The primary cyclone filter 310 includes a filter screen support 311 sleeved on the outer periphery of the secondary cyclone filter 320 and a filter screen 312 disposed on the filter screen support 311. The filter screen 312 includes a plurality of filter holes, which are configured to allow airflow from the dust cup to flow toward the secondary cyclone filter 320. The filter screen 312 prevents large foreign objects (hair, large-diameter particles) from entering the secondary cyclone filter 320 while allowing air to pass through and enter the secondary cyclone filter 320 for deep filtration.

[0079] To ensure that the primary cyclone filter 310 can rotate easily under the action of the airflow in the dust cup, a set of blades for cooperating with the airflow in the dust cup is also provided on the outer peripheral surface of the filter support 311. The blade set includes a first blade set 313 located below the filter 312 and a second blade set 314 located above the filter 312. The air inlet 111 is positioned higher than the first blade set 313, and the second blade set 314 is located at the height of the filter support 311 corresponding to the air inlet 111.

[0080] Considering the downward spiral flow of the airflow in the dust cup, when the airflow first enters the dust cup body 110, it acts on the second blade group 314, which is distributed at the same height as the air inlet 111. At this time, the primary cyclone filter 310 can rotate under the action of the airflow in the dust cup. As the airflow in the dust cup flows downward, it acts on the first blade group 313 as it passes through the filter screen 312, continuing to drive the primary cyclone filter 310 to rotate. In other words, the airflow in the dust cup continuously acts on the primary cyclone filter 310 before entering the secondary cyclone filter 320, thereby ensuring the efficient rotation of the primary cyclone filter 310.

[0081] The first blade group 313 includes a plurality of first blades circumferentially spaced along the filter support 311. The first blades extend in a direction parallel to the axial direction of the filter support 311, or the first blades are tilted at a preset angle relative to the rotation axis X of the first-stage cyclone filter 310, so that the normal phase of each first blade is as parallel as possible to the flow direction of the dust cup airflow, thereby optimizing the driving effect of the dust cup airflow on the first blades.

[0082] The aforementioned preset angle is an acute angle (less than 90°), and further, less than 45°. The value of the aforementioned preset angle can be 40°, 35°, 30°, 25°, 20°, 15°, 10°, 5°, etc., or it can decrease in increments of 1°.

[0083] The second blade assembly 314 includes multiple second blades circumferentially spaced along the filter support 311. The axial extension length of the second blades is less than that of the first blades. Since the overall axial length of the primary cyclone filter 310 is limited, and the airflow in the dust cup flows downwards towards the filter 312 due to the reduced flow cross-section, the longer first blades can fully utilize the airflow, thus improving the driving effect. Because the second blades are shorter in axial length, they are arc-shaped to ensure a better driving effect from the airflow in the dust cup.

[0084] like Figure 4 and Figure 5 As shown, the secondary cyclone filter 320 includes a multi-cone filter structure 321 located within the filter support 311, a secondary dust collection section 322 located below the multi-cone filter structure 321, and an upper cover 323 located above the multi-cone filter structure 321. The upper cover 323 is fixed above the multi-cone filter structure 321 and is partially located above the primary cyclone filter 310.

[0085] In one embodiment, such as Figure 8 As shown, the top edge of the multi-cone filter structure 321 is provided with at least one pair of connecting posts 3211. The multi-cone filter structure 321 is connected to the upper cover 323 through the connecting posts 3211. Fasteners 3212 are provided on the connecting posts 3211, and the multi-cone filter structure 321 is fastened to the underside of the upper cover 323 by the fasteners 3212. The fasteners 3212 can be bolts, screws, pins, etc.

[0086] The secondary dust collection unit 322 is fixed directly below the multi-cone filter structure 321. The secondary dust collection unit 322 is used to collect the smaller dust particles filtered by the multi-cone filter structure 321. The lower end (bottom end) of the secondary dust collection unit 322 has a secondary dust discharge port 3221, which is used to discharge the smaller dust particles filtered by the multi-cone filter structure 321.

[0087] Furthermore, the lower ends of both the secondary dust discharge port 3221 and the primary cyclone filter 310 are suspended to form the aforementioned dust storage space between them and the dust cup cover 120 (the bottom of the dust cup). In one embodiment, the secondary dust discharge port 3221 extends below the bottom opening of the primary cyclone filter 310, and is positioned below the bottom opening of the primary cyclone filter 310.

[0088] like Figure 4 and Figure 7 As shown, an elastic baffle 3222 is also provided at the secondary dust discharge port 3221. One side of the elastic baffle 3222 is fixed to the secondary dust discharge port 3221, and the opposite side is a free end. The elastic baffle 3222 has a first state covering the secondary dust discharge port 3221 and a second state in which the free end of the elastic baffle 3222 bends toward the dust cup cover 120 under the action of external force. In the second state, the secondary dust discharge port 3221 is in the open state, and at this time, the dust in the secondary dust collection section 322 can fall into the aforementioned dust storage space.

[0089] The external force that causes the free end of the elastic baffle 3222 to bend toward the dust cup cover 120 is the negative pressure suction force provided by the dust collection station (not shown) connected to the vacuum cleaner. When the vacuum cleaner is connected to the dust collection station, the dust cup cover 120 is in the open state under the action of the dust collection station. At this time, the negative pressure suction force provided by the dust collection station can not only suck the dirt in the dust cup body 110 into the dust collection station, but also switch the elastic baffle 3222 from the first state to the second state, so that the secondary dust discharge port 3221 is in the open state, and the smaller dust particles in the secondary dust collection section 322 can be sucked into the dust collection station together.

[0090] The primary cyclone filter 310 is rotatably mounted within the dust cup 100 in two ways: first, the primary cyclone filter 310 is rotatably mounted on the dust cup 100 via a bearing assembly; second, the primary cyclone filter 310 is rotatably mounted on the outer periphery of the secondary cyclone filter 320 via a bearing assembly. In either case, the primary cyclone filter 310 can rotate relative to the secondary cyclone filter 320, or in other words, the primary cyclone filter 310 can rotate relative to the dust cup 100.

[0091] Preferably, the primary cyclone filter 310 is rotatably disposed on the outer periphery of the secondary cyclone filter 320 via a bearing assembly. Further, the primary cyclone filter 310 is rotatably disposed between the top end of the multi-cone filter structure 321 and the bottom end of the secondary dust collection section 322.

[0092] like Figure 4 As shown, the bearing assembly includes at least a first bearing 340. The bottom end of the primary cyclone filter 310 is mounted on the secondary cyclone filter 320 via the first bearing 340, so that the primary cyclone filter 310 can rotate relative to the secondary cyclone filter 320. The first bearing 340 is located between the primary cyclone filter 310 and the secondary dust collection section 322.

[0093] Specifically, the first bearing 340 is sleeved on the secondary dust collection section 322 and is interference-fitted to the bottom end of the primary cyclone filter 310. For example... Figure 4 and Figure 7As shown, a limiting member 341 located below the first bearing 340 is fitted on the secondary dust collection unit 322. The limiting member 341 is ring-shaped and is used to support the first bearing 340 from the bottom to limit the downward displacement of the primary cyclone filter 310 along the axial direction.

[0094] The secondary dust collection section 322 is funnel-shaped and includes a dust collection cone connected to the multi-cone filter structure 321 and a cylindrical ring connected below the dust collection cone. A first bearing 340 and a limiting member 341 are fitted onto the cylindrical ring. Multiple limiting blocks 3223 are spaced circumferentially at the connection between the dust collection cone and the cylindrical ring, limiting the position of the first bearing 340 in the axial upward direction. A limiting rib 315 is provided on the inner circumferential wall of the bottom of the primary cyclone filter 310 corresponding to the position of the limiting block 3223. The limiting rib 315 also limits the position of the first bearing 340 in the axial upward direction. The limiting rib 315 and the limiting block 3223 cooperate to achieve complete limiting of the inner and outer rings of the first bearing 340, thereby ensuring stable and reliable rotation of the primary cyclone filter 310 relative to the secondary cyclone filter 320.

[0095] The limiting member 341 and the cylindrical ring of the secondary dust collection unit 322 are connected by a thread. When the limiting member 341 is installed on the cylindrical ring, the top of the limiting member 341 abuts against the bottom of the first bearing 340.

[0096] like Figure 4 As shown, the upward displacement of the primary cyclone filter 310 along the axial direction is limited by the upper cover 323. Specifically, the upper cover 323 is located above the primary cyclone filter 310 and is used to limit the primary cyclone filter 310 from the top.

[0097] Considering that the primary cyclone filter 310 has a certain length in the axial direction, although the first bearing 340 can meet the requirement that the primary cyclone filter 310 rotates on the secondary cyclone filter 320, in order to make the rotation of the primary cyclone filter 310 more stable and reliable, the bearing assembly also includes multiple second bearings 350 located between the top of the primary cyclone filter 310 and the top of the multi-cone filter structure 321. The multiple second bearings 350 are evenly spaced in the circumferential direction, and the rotation axes of the second bearings 350 are parallel to the rotation axis X.

[0098] The first bearing 340 and the second bearing 350 support the primary cyclone filter 310 from the bottom and top, respectively, making its rotation smoother and more reliable. This effectively prevents the primary cyclone filter 310 from shaking under the influence of airflow in the dust cup, thus reducing vibration and noise. Furthermore, the second bearing 350 at the top changes the friction between the primary cyclone filter 310 and the multi-cone filter structure 321 from sliding friction to rolling friction, thereby reducing the rotational resistance of the primary cyclone filter 310 and improving its anti-hair entanglement effect.

[0099] Regarding the placement of the second bearings 350, multiple second bearings 350 can be disposed on the inner peripheral wall of the primary cyclone filter 310, or on the outer peripheral wall of the multi-cone filter structure 321. In one embodiment, as... Figure 4 and Figure 8 As shown, multiple second bearings 350 are disposed on the outer peripheral wall of the multi-cone filter structure 321. Specifically, multiple lower support portions 3213 are provided on the edge of the top of the multi-cone filter structure 321. The multiple lower support portions 3213 are evenly distributed in the circumferential direction and are alternately arranged with the connecting column 3211 in the circumferential direction. The top of the lower support portion 3213 is provided with a first protruding column 3214 extending in the axial direction.

[0100] like Figure 9 As shown, the upper cover 323 has multiple upper support portions 3231 corresponding to the lower support portions 3213. The bottom of each upper support portion 3231 has a second protrusion 3232 extending axially, which is inserted into a first protrusion 3214. One of the first protrusion 3214 and the second protrusion 3232 has an axially extending insertion hole, while the other is located within the insertion hole. The second bearing 350 is sleeved on the one with the insertion hole.

[0101] In one embodiment, the second protrusion 3232 is provided with the aforementioned insertion hole, the first protrusion 3214 is disposed in the insertion hole, and the second bearing 350 is sleeved on the second protrusion 3232. After the multi-cone filter structure 321 and the upper cover 323 are assembled, the second bearing 350 is constrained between the multi-cone filter structure 321 and the upper cover 323.

[0102] like Figure 10 As shown, the top edge of the filter support 311 is provided with a limiting rib ring 3111 extending axially. The limiting rib ring 3111 forms a receiving groove around the top of the filter support 311, and multiple second bearings 350 are located in the receiving groove. The limiting rib ring 3111 is arranged around the outer periphery of the multiple second bearings 350, and can limit the multiple second bearings 350 in the circumferential direction.

[0103] To prevent airflow from entering the space between the primary cyclone filter 310 and the secondary cyclone filter 320 through the top gap between them, specifically, to prevent airflow from entering the space between the primary cyclone filter 310 and the multi-cone filter structure 321, and more specifically, to prevent airflow from entering the second bearing 350, the aforementioned first dust-blocking structure 330 is provided between the primary cyclone filter 310 and the dust cup and / or between the primary cyclone filter 310 and the secondary cyclone filter 320. This avoids the problem of increased rotational resistance of the primary cyclone filter 310 due to the accumulation of dirt over a long period of time because the second bearing 350 cannot be cleaned.

[0104] like Figure 11 As shown, when the first dust-blocking structure 330 is located between the primary cyclone filter 310 and the dust cup, the first dust-blocking structure 330 is a brush bristle circumferentially arranged on the outer peripheral wall of the top of the primary cyclone filter 310, with the bristle abutting against the inner wall of the dust cup 100; or, the first dust-blocking structure 330 is a sponge circumferentially arranged on the outer peripheral wall of the top of the primary cyclone filter 310, with the sponge abutting against the inner wall of the dust cup. A mounting groove is recessed on the outer peripheral wall of the top of the primary cyclone filter 310, and a portion of the first dust-blocking structure 330 is accommodated within the mounting groove. The mounting groove reduces the radial space occupied by the first dust-blocking structure 330, making the structure more compact. Of course, the first dust-blocking structure 330 can be, but is not limited to, brush bristles and sponge, and can also be made of other materials, which will not be elaborated here.

[0105] like Figure 12 As shown, when the first dust-blocking structure 330 is disposed between the primary cyclone filter 310 and the secondary cyclone filter 320, the first dust-blocking structure 330 is circumferentially disposed on the top surface of the primary cyclone filter 310, and the first dust-blocking structure 330 abuts against the upper cover 323.

[0106] like Figure 13 As shown, a second dust-blocking structure 360 ​​is also provided between the primary cyclone filter 310 and the secondary dust collection unit 322. The second dust-blocking structure 360 ​​is configured to prevent dirt filtered by the multi-cone filter structure 321 from entering the gap between the primary cyclone filter 310 and the secondary dust collection unit 322. More specifically, the second dust-blocking structure 360 ​​is used to prevent dirt filtered by the multi-cone filter structure 321 from intruding into the first bearing 340, causing the first bearing 340 to be unable to be cleaned. The dirt accumulates for a long time, which increases the rotational resistance of the primary cyclone filter 310, eventually causing the primary cyclone filter 310 to jam.

[0107] The second dust-blocking structure 360 ​​includes a first baffle 361 located at the top edge of the secondary dust collection section 322 and a second baffle 362 located on the inner wall of the primary cyclone filter 310. The second baffle 362 is located in the lower middle part of the primary cyclone filter 310 and above the first bearing 340. The first baffle 361 and the second baffle 362 form a labyrinth-type sealing structure. The labyrinth-type sealing structure can extend the path that dust and debris take when passing through the gap, increasing the difficulty for dust and debris to pass through.

[0108] Example 2

[0109] like Figure 1 As shown, this utility model also provides a cleaning device, which is a vacuum cleaner in one application scenario. The vacuum cleaner includes a main unit 2000, a vacuum cleaner 1000 connected to the main unit 2000, a dust inlet pipe (not shown) connected to the vacuum cleaner 1000, and a floor brush connected to the dust inlet pipe. A fluid connection is formed between the main unit 2000 and the vacuum cleaner 1000. Dirty airflow drawn in by the floor brush enters the vacuum cleaner 1000 through the dust inlet pipe, is filtered by the vacuum cleaner 1000, enters the main unit 2000, and is finally discharged to the external environment through the main unit 2000. The vacuum cleaner 1000 described above is the vacuum cleaner described in Embodiment 1.

[0110] Example 3

[0111] This utility model provides a vacuum cleaner system, including a cleaning device (not shown) and a dust collection station (not shown), wherein the cleaning device can be connected to the dust collection station. Specifically, the cleaning device includes a vacuum cleaner 1000, which is the vacuum cleaner 1000 described in Embodiment 1.

[0112] Specifically, the cleaning equipment is connected to the dust collection station via the vacuum cleaner 1000. The vacuum cleaner 1000 has an operating state when the dust cup cover 120 is closed and a cleaning state when the dust cup cover 120 is open after docking with the dust collection station. In the operating state, the primary cyclone filter 310 is rotated by the airflow entering the dust cup 100 from the air inlet 111. In the cleaning state, the primary cyclone filter 310 can rotate under the action of the negative pressure suction airflow provided by the dust collection station.

[0113] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, those skilled in the art can make other variations or modifications without creative effort, and all such variations or modifications should fall within the protection scope of this utility model.

Claims

1. A vacuum cleaner for filtering airflow, characterized in that, include: The dust cup (100) has an air inlet (111), an air outlet (112) and a dust cup opening (113). Airflow enters the dust cup (100) through the air inlet (111) and is discharged through the air outlet (112). A dust cup cover (120) is provided at the dust cup opening (113) in an openable and closable manner. A filter assembly (300) is disposed within the dust cup (100), the filter assembly (300) including a primary cyclone filter (310). The vacuum cleaner has a working state when the dust cup cover (120) is closed and a cleaning state when the dust cup cover (120) is open; In the operating state, the primary cyclone filter (310) is able to rotate relative to the dust cup.

2. The vacuum cleaner as described in claim 1, characterized in that, The primary cyclone filter (310) is rotated by the airflow entering the dust cup (100) from the air inlet (111), wherein the rotation direction of the primary cyclone filter (310) is consistent with the rotation direction of the airflow entering the dust cup (100) from the air inlet (111).

3. The vacuum cleaner as described in claim 1, characterized in that, The primary cyclone filter (310) includes a filter support (311), a filter screen (312) disposed on the filter support (311), and a blade assembly disposed on the outer peripheral surface of the filter support (311). The blade assembly is configured to cooperate with the airflow entering the dust cup (100) from the air inlet (111) to drive the primary cyclone filter (310) to rotate.

4. The vacuum cleaner as described in claim 3, characterized in that, The blade group includes at least a first blade group (313) located below the filter (312), and the air inlet (111) is distributed above the first blade group (313).

5. The vacuum cleaner as described in claim 4, characterized in that, The first blade group (313) includes a plurality of first blades spaced apart circumferentially along the filter support (311); Wherein, the first blade extends in a direction parallel to the axial direction of the filter support (311), or the first blade is tilted at a preset angle relative to the rotation axis of the first-stage cyclone filter (310), the preset angle being an acute angle.

6. The vacuum cleaner as described in claim 3, characterized in that, The blade group also includes a second blade group (314), which is located above the filter (312) and at the height of the filter support (311) corresponding to the air inlet (111).

7. The vacuum cleaner as described in claim 1, characterized in that, The filter assembly (300) includes a secondary cyclone filter (320) located downstream of the primary cyclone filter (310). The secondary cyclone filter (320) is configured to filter the airflow filtered by the primary cyclone filter (310). The primary cyclone filter (310) is rotatable relative to the secondary cyclone filter (320). The secondary cyclone filter (320) includes a multi-cone filter structure (321) and a secondary dust collection section (322) disposed below the multi-cone filter structure (321). The primary cyclone filter (310) is rotatably disposed between the top end of the multi-cone filter structure (321) and the bottom end of the secondary dust collection section (322).

8. The vacuum cleaner as described in claim 7, characterized in that, The primary cyclone filter (310) is rotatably mounted on the outer periphery of the multi-cone filter structure (321) and the secondary dust collection unit (322) via a bearing assembly; The bearing assembly includes at least a first bearing (340) located between the primary cyclone filter (310) and the secondary dust collection unit (322). The first bearing (340) is sleeved on the secondary dust collection unit (322) and is interference-fitted to the bottom end of the primary cyclone filter (310). The secondary dust collection unit (322) is also fitted with a limiting member (341) located below the first bearing (340), and the limiting member (341) is configured to support the first bearing (340) from the bottom.

9. The vacuum cleaner as described in claim 8, characterized in that, The bearing assembly further includes a plurality of second bearings (350) located between the primary cyclone filter (310) and the multi-cone filter structure (321). The plurality of second bearings (350) are disposed on the inner peripheral wall of the primary cyclone filter (310) or the outer peripheral wall of the multi-cone filter structure (321). The plurality of second bearings (350) are configured such that the friction between the primary cyclone filter (310) and the multi-cone filter structure (321) is rolling friction. The multi-cone filter structure (321) is fixedly provided with an upper cover (323), which is located above the primary cyclone filter (310) and is used to limit the primary cyclone filter (310) from the top.

10. A vacuum cleaner for filtering airflow, characterized in that, include: The dust cup (100) has an air inlet (111), an air outlet (112) and a dust cup opening (113). Airflow enters the dust cup (100) through the air inlet (111) and is discharged through the air outlet (112). A dust cup cover (120) is provided at the dust cup opening (113) in an openable and closable manner. A filter assembly (300) is disposed within the dust cup, the filter assembly (300) including a primary cyclone filter (310) and a secondary cyclone filter (320) located downstream of the primary cyclone filter (310), the secondary cyclone filter (320) being configured to filter the airflow filtered by the primary cyclone filter (310); The vacuum cleaner has a working state when the dust cup cover (120) is closed and a cleaning state when the dust cup cover (120) is open; In the operating state, the primary cyclone filter (310) is rotatable relative to the secondary cyclone filter (320). A first dust-blocking structure (330) is provided between the primary cyclone filter (310) and the dust cup and / or between the primary cyclone filter (310) and the secondary cyclone filter (320). The first dust-blocking structure (330) is configured to block airflow entering the dust cup from the air inlet (111) from entering between the primary cyclone filter (310) and the secondary cyclone filter (320) through the top gap between them.

11. The vacuum cleaner as claimed in claim 10, characterized in that, The first dust-blocking structure (330) consists of bristles arranged circumferentially on the outer peripheral wall of the top of the primary cyclone filter (310), the bristles abutting against the inner wall of the dust cup; or, The first dust-blocking structure (330) is a sponge that is circumferentially arranged on the outer peripheral wall of the top of the primary cyclone filter (310), and the sponge abuts against the inner wall of the dust cup.

12. The vacuum cleaner as described in claim 10, characterized in that, An installation groove is formed on the outer peripheral wall of the top of the primary cyclone filter (310), and part of the first dust-blocking structure (330) is accommodated in the installation groove.

13. The vacuum cleaner as described in claim 10, characterized in that, The secondary cyclone filter (320) includes a multi-cone filter structure (321) and a secondary dust collection section (322) located below the multi-cone filter structure (321). The primary cyclone filter (310) is rotatably disposed between the top end of the multi-cone filter structure (321) and the bottom end of the secondary dust collection section (322). The first dust-blocking structure (330) is configured to block airflow from entering the dust cup from the air inlet (111) from entering between the primary cyclone filter (310) and the multi-cone filter structure (321); A second dust-blocking structure (360) is also provided between the primary cyclone filter (310) and the secondary dust collection unit (322). The second dust-blocking structure (360) is configured to prevent dirt filtered by the multi-cone filter structure (321) from entering the gap between the primary cyclone filter (310) and the secondary dust collection unit (322).

14. The vacuum cleaner as claimed in claim 13, characterized in that, The second dust-blocking structure (360) includes a first baffle (361) located at the top edge of the secondary dust collection section (322) and a second baffle (362) located on the inner wall of the primary cyclone filter (310). The first baffle (361) and the second baffle (362) form a labyrinth-type sealing structure.

15. A vacuum cleaner for filtering airflow, characterized in that, include: The dust cup has an air inlet (111) and an air outlet (112). Airflow enters the dust cup through the air inlet (111) and is discharged through the air outlet (112). A filter assembly (300) is disposed within the dust cup, the filter assembly (300) including a primary cyclone filter (310) and a secondary cyclone filter (320) located downstream of the primary cyclone filter (310), the secondary cyclone filter (320) being configured to filter the airflow filtered by the primary cyclone filter (310); The bottom end of the primary cyclone filter (310) is mounted on the secondary cyclone filter (320) via a first bearing (340) so that the primary cyclone filter (310) can rotate relative to the secondary cyclone filter (320).

16. The vacuum cleaner as claimed in claim 15, characterized in that, The first bearing (340) is sleeved on the secondary cyclone filter (320) and is interference-fitted to the bottom end of the primary cyclone filter (310); The bottom end of the secondary cyclone filter (320) is fitted with a limiting member (341) located below the first bearing (340), and the limiting member (341) is configured to support the first bearing (340) from the bottom.

17. The vacuum cleaner as claimed in claim 16, characterized in that, The secondary cyclone filter (320) has a top cover (323) at its top, which limits the primary cyclone filter (310) from the top.

18. The vacuum cleaner as claimed in claim 17, characterized in that, The secondary cyclone filter (320) includes a multi-cone filter structure (321), a secondary dust collection section (322) located below the multi-cone filter structure (321), and a top cover (323) located above the multi-cone filter structure (321). The primary cyclone filter (310) is located on the outer periphery of the secondary cyclone filter (320) and is rotatably disposed between the top end of the multi-cone filter structure (321) and the bottom end of the secondary dust collection section (322) via the first bearing (340).

19. The vacuum cleaner as claimed in claim 18, characterized in that, A plurality of second bearings (350) are located between the primary cyclone filter (310) and the multi-cone filter structure (321). The plurality of second bearings (350) are disposed on the inner peripheral wall of the primary cyclone filter (310) or the outer peripheral wall of the multi-cone filter structure (321). The plurality of second bearings (350) are configured such that the friction between the primary cyclone filter (310) and the multi-cone filter structure (321) is rolling friction.

20. A vacuum cleaner for filtering airflow, characterized in that, include: Dust cup; A filter assembly (300) is disposed within the dust cup, the filter assembly (300) including a rotatable primary cyclone filter (310) and a secondary cyclone filter (320) located at least partially within the primary cyclone filter (310), the secondary cyclone filter (320) being configured to filter the airflow filtered by the primary cyclone filter (310); The bottom of the filter assembly (300) and the bottom of the dust cup are spaced apart in the vertical direction to form a dust storage space.

21. The vacuum cleaner as claimed in claim 20, characterized in that, The primary cyclone filter (310) is rotatably disposed on the outer periphery of the secondary cyclone filter (320) via a bearing assembly, wherein the bearing assembly is located between the primary cyclone filter (310) and the secondary cyclone filter (320), and the primary cyclone filter (310) is driven to rotate by the airflow in the dust cup.

22. The vacuum cleaner as claimed in claim 21, characterized in that, The dust cup is provided with an air inlet (111) and an air outlet (112). The primary cyclone filter (310) is rotated by the airflow entering the dust cup from the air inlet (111). The rotation direction of the primary cyclone filter (310) is consistent with the rotation direction of the airflow entering the dust cup from the air inlet (111).

23. The vacuum cleaner as claimed in claim 22, characterized in that, The primary cyclone filter (310) includes a filter support (311) sleeved on the outer periphery of the secondary cyclone filter (320), a filter screen (312) disposed on the filter support (311), and a blade assembly disposed on the outer periphery of the filter support (311). The blade assembly is configured to cooperate with the airflow entering the dust cup from the air inlet (111) to drive the primary cyclone filter (310) to rotate.

24. The vacuum cleaner as claimed in claim 23, characterized in that, The blade group includes at least a first blade group (313) located below the filter (312), and the air inlet (111) is distributed above the first blade group (313).

25. The vacuum cleaner as claimed in claim 23, characterized in that, The blade group also includes a second blade group (314), which is located above the filter (312) and at the height of the filter support (311) corresponding to the air inlet (111).

26. The vacuum cleaner as claimed in claim 21, characterized in that, The secondary cyclone filter (320) includes a multi-cone filter structure (321) and a secondary dust collection section (322) located below the multi-cone filter structure (321). The primary cyclone filter (310) is rotatably disposed between the top end of the multi-cone filter structure (321) and the bottom end of the secondary dust collection section (322).

27. The vacuum cleaner as claimed in claim 26, characterized in that, The bearing assembly includes at least a first bearing (340) located between the primary cyclone filter (310) and the secondary dust collection unit (322). The first bearing (340) is sleeved on the secondary dust collection unit (322) and is interference-fitted to the bottom end of the primary cyclone filter (310). The secondary dust collection unit (322) is also fitted with a limiting member (341) located below the first bearing (340), and the limiting member (341) is configured to support the first bearing (340) from the bottom.

28. The vacuum cleaner as claimed in claim 26, characterized in that, The bearing assembly further includes a plurality of second bearings (350) located between the primary cyclone filter (310) and the multi-cone filter structure (321). The plurality of second bearings (350) are disposed on the inner peripheral wall of the primary cyclone filter (310) or the outer peripheral wall of the multi-cone filter structure (321). The plurality of second bearings (350) are configured such that the friction between the primary cyclone filter (310) and the multi-cone filter structure (321) is rolling friction. The multi-cone filter structure (321) is fixedly provided with an upper cover (323), which is located above the primary cyclone filter (310) and is used to limit the primary cyclone filter (310) from the top.

29. The vacuum cleaner as claimed in claim 20, characterized in that, The bottom of the secondary cyclone filter (320) is provided with a suspended secondary dust discharge port (3221), which is set lower than the bottom of the primary cyclone filter (310).

30. The vacuum cleaner as claimed in claim 29, characterized in that, The primary cyclone filter (310) has a bottom opening, and the secondary dust outlet (3221) extends below the primary cyclone filter (310) through the bottom opening.

31. A cleaning device, characterized in that, Includes the vacuum cleaner as described in any one of claims 1 to 9, or the vacuum cleaner as described in any one of claims 10 to 14, or the vacuum cleaner as described in any one of claims 15 to 19, or the vacuum cleaner as described in any one of claims 20 to 30.

32. A vacuum cleaner system, characterized in that, include: A vacuum cleaner and a dust collection station connected to the vacuum cleaner; the vacuum cleaner includes: The dust cup is provided with an air inlet (111), an air outlet (112) and a dust cup opening (113), and a dust cup cover (120) is provided at the dust cup opening (113) in an openable and closable manner. A filter assembly (300) is disposed within the dust cup. The filter assembly (300) includes a primary cyclone filter (310) and a secondary cyclone filter (320) located downstream of the primary cyclone filter (310). The primary cyclone filter (310) is rotatably disposed relative to the secondary cyclone filter (320). The secondary cyclone filter (320) is configured to filter the airflow filtered by the primary cyclone filter (310). The vacuum cleaner has a working state when the dust cup cover (120) is closed, and a cleaning state when the dust cup cover (120) is opened after docking with the dust collection station; In the operating state, the primary cyclone filter (310) is driven to rotate by the airflow entering the dust cup from the air inlet (111); in the cleaning state, the primary cyclone filter (310) can rotate under the action of the negative pressure suction airflow provided by the dust collection station.

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