Vacuum cleaner and cleaning system

Abstract

The utility model discloses a vacuum cleaner and a cleaning system. The vacuum cleaner comprises a cleaning body, a dust cup and a filtering device. A cleaning body; the dust cup is detachably arranged on the cleaning main body; the filtering device is fixed to the cleaning body, and at least part of the filtering device is located in the dust cup cavity; the filtering device comprises a first-stage filter and a second-stage filter located at the filtering downstream of the first-stage filter, and the first-stage filter or the second-stage filter has a rotating state; when the dust cup is detached from the cleaning main body, the filtering device is still kept connected with the cleaning main body. On one hand, dirt in the dust cup is cleaned, on the other hand, the primary filter is cleaned, a cleaning mechanism does not need to be additionally arranged for cleaning the primary filter, the structure is simpler, and the cost is lower.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cleaning tools, and particularly relates to a vacuum cleaner and cleaning system. BACKGROUND

[0002] The dust separating device of some cleaners in the prior art comprises a cylindrical cyclone filter located in a dust cup, and the surface of the filter is provided with a filter screen in the form of a ring. When the cleaner is working, the airflow with dirt sucked in enters the dust cup through the air inlet on the dust cup and rotates around the cylindrical cyclone filter, at which time the airflow filtered by the filter screen of the cyclone filter can enter the next stage of filtration. However, when the cleaner sucks in some long filamentary objects (such as long hair and wool strips), due to the principle of the cyclone filter, the airflow drives the hair to rotate around the cyclone assembly, and after a long time, the long hair will be entangled on the surface of the cyclone filter, causing the cyclone filter to be blocked and affecting the efficiency of dust suction and filtration. SUMMARY

[0003] To solve the above technical problems, the main purpose of the utility model is to provide a vacuum cleaner and cleaning system, which aims to solve the problem that the surface of the cyclone filter of the conventional cleaner is easy to entangle filamentary objects such as hair, which causes the filter to be easily blocked and affects the normal work of the cleaner.

[0004] To achieve the above purpose, the utility model provides a vacuum cleaner, which comprises:

[0005] a cleaning main body;

[0006] a dust cup, which is detachably arranged on the cleaning main body;

[0007] a filtering device, which is fixed to the cleaning main body and at least partially located in the dust cup; the filtering device comprises a primary filter and a secondary filter located downstream of the primary filter, and the primary filter or the secondary filter has a rotating state;

[0008] When the dust cup is detached from the cleaning main body, the filtering device still remains connected to the cleaning main body.

[0009] Optionally, the filtering device is detachably connected to the cleaning main body through the secondary filter, and the primary filter is rotatably arranged on the secondary filter.

[0010] Optionally, the dust cup comprises a dust cup cavity and a dust cup cover capable of opening and closing the dust cup cavity, the vacuum cleaner has a cleaning working state when the dust cup cover is closed and a dirt discharging state when the dust cup cover is opened; when in the dirt discharging state, a dirt discharging airflow is formed in the dust cup and the primary filter is driven to rotate under the action of the dirt discharging airflow; the cleaning main body comprises at least one damping part, and the at least one damping part is used to limit the rotation of the primary filter when in the cleaning working state.

[0011] Optionally, the at least one damping part is arranged on the dust cup cover and abuts against the primary filter when the dust cup cover closes the dust cup cavity.

[0012] Optionally, the cleaning main body comprises a first damping part and a second damping part, and the first damping part and the second damping part abut against the two axial ends of the primary filter respectively when in the cleaning working state.

[0013] Optionally, the first damping part is arranged on the secondary filter and is in pressure contact with the top end of the primary filter when in the cleaning working state;

[0014] the second damping part is arranged on the dust cup cover and is in pressure contact with the bottom end of the primary filter when in the cleaning working state.

[0015] Optionally, the primary filter has an axial movement stroke.

[0016] Optionally, when in the dirt discharging state, the first damping part is in contact with or separated from the primary filter, and the second damping part is separated from the primary filter;

[0017] When the dust cup cover moves from the opened state to the closed state, the second damping part is driven to abut against the primary filter and move the primary filter towards the first damping part under the action of the closing force of the dust cup cover, and the first damping part and the second damping part abut against the two ends of the primary filter respectively when the dust cup cover completely closes the dust cup cavity.

[0018] Optionally, the secondary filter comprises:

[0019] a multi-cone filter structure;

[0020] a secondary dust collecting part connected to the bottom end of the multi-cone filter structure;

[0021] the two ends of the primary filter are rotationally connected to the multi-cone filter structure and the secondary dust collecting part respectively.

[0022] Optionally, the upper end of the primary filter is rotatably connected with the multi-cone filter structure through an upper bearing structure.

[0023] Optionally, the secondary filter further comprises a cover plate, the cover plate is arranged on the top end of the multi-cone filter structure and detachably connected with the cleaning main body, the upper bearing structure is arranged between the cover plate and the multi-cone filter structure, and the primary filter is sleeved on the outer circumferential side of the upper bearing structure and in rolling contact with the upper bearing structure.

[0024] Optionally, the upper bearing structure comprises an extension part arranged on the multi-cone filter structure and a plurality of upper bearings arranged on the extension part, and the cover plate is arranged on the plurality of upper bearings.

[0025] The primary filter comprises a contact part, which is annularly arranged on the outer side of the plurality of upper bearings and in rolling contact with the plurality of upper bearings.

[0026] Optionally, one of the cover plate and the cleaning main body is provided with a clamping groove, and the other is provided with a clamping block matched with the clamping groove, one side of the clamping groove is provided with a gap, and the clamping block can be clamped in the clamping groove from the gap.

[0027] Optionally, the lower end of the primary filter is rotatably connected with the secondary dust collecting part through a lower bearing structure.

[0028] Optionally, the lower bearing structure comprises a lower bearing sleeved on the outer side of the secondary dust collecting part and a limiting piece.

[0029] The primary filter is provided with a stop part, and the stop part and the limiting piece abut on the two ends of the axial direction of the lower bearing, respectively.

[0030] Optionally, the primary filter comprises a filter support, the filter support is annularly arranged on the outer circumferential side of the secondary dust collecting part, the stop part comprises a stop protrusion protruding on the inner ring side of the filter support; and / or,

[0031] The limiting piece comprises a limiting ring screwed with the secondary dust collecting part, and the limiting ring abuts on the bottom of the lower bearing.

[0032] Optionally, the primary filter comprises a filter support and a filter screen arranged on the filter support, and the filter screen is annularly arranged on the outer circumferential side of the multi-cone filter structure.

[0033] At least part of the filter support is annularly arranged on the outer circumferential side of the secondary dust collecting part and matched with the shape of the secondary dust collecting part, and at least part of the upper end of the secondary dust collecting part is overlapped on the inner side of the filter support.

[0034] Optionally, the bottom end of the filter support is open; the bottom of the secondary dust collecting part is provided with a secondary dust discharging port, which is located in the filter support and communicates with the filter support.

[0035] Optionally, the outer periphery of the filter support is provided with a plurality of first vanes, the plurality of first vanes are arranged at intervals along the circumference of the filter support, and the plurality of first vanes are arranged around the outside of the secondary dust collecting part.

[0036] Optionally, the cleaning main body is formed with a dust suction pipeline adapted to communicate with the outside;

[0037] The circumferential wall of the dust cup is provided with an air inlet, which communicates the dust cup cavity and the dust suction pipeline, and the height of the air inlet is higher than the arrangement height of the plurality of first vanes.

[0038] Optionally, the outer periphery of the filter support is provided with a plurality of second vanes, the plurality of second vanes are located above the plurality of first vanes and are arranged corresponding to the air inlet.

[0039] The utility model also provides a kind of cleaning system, comprising:

[0040] The vacuum cleaner described above;

[0041] Dust collecting station, to place the vacuum cleaner;

[0042] When the vacuum cleaner is in a cleaning working state, the primary filter of the vacuum cleaner is in a non-rotating state; when the vacuum cleaner is placed on the dust collecting station and is in a sewage discharging state, the primary filter can be rotated under the action of sewage discharging airflow formed in the dust cup of the vacuum cleaner.

[0043] Optionally, the vacuum cleaner further comprises a first suction device, which can form a dust suction airflow in a first direction when in a cleaning working state, and in the direction of the dust suction airflow, the first suction device is located downstream of the secondary filter of the vacuum cleaner.

[0044] Optionally, when the vacuum cleaner is placed on the dust collecting station and is in a sewage discharging state, the first suction device can form a sewage discharging airflow in a second direction, and the second direction is opposite to the first direction;

[0045] The sewage discharging airflow can flow from the first suction device towards the secondary filter and enter the dust cup after flowing through the primary filter, so as to flow towards the dust collecting station, and under the action of the sewage discharging airflow, the primary filter can be rotated.

[0046] Optionally, the dust collection station comprises a second suction device, which forms a blowdown air flow flowing from the dust cup towards the dust collection station when the vacuum cleaner is placed on the dust collection station and is in a blowdown state.

[0047] The technical scheme provided by the utility model has the following beneficial effects:

[0048] The vacuum cleaner provided by the utility model comprises a cleaning main body, a dust cup and a filtering device, wherein the dust cup is detachably arranged on the cleaning main body, and when the dust cup needs to be replaced or cleaned, the dust cup is more convenient to disassemble and assemble; in addition, the filtering device is connected with the cleaning main body, therefore, the disassembly and assembly of the dust cup will not affect the disassembly and assembly of the filtering device, the dust cup can be cleaned separately, and after the dust cup is disassembled, at least part of the filtering device is exposed, thereby facilitating the cleaning of the filtering device.

[0049] The filtering device comprises a primary filter and a secondary filter, after one-time filtration by the primary filter, secondary filtration can be carried out by the secondary filter, double filtration ensures that the filtration effect of the vacuum cleaner is better, and therefore dirt can be better retained in the dust cup; in addition, when the vacuum cleaner normally performs a cleaning work, the primary filter will not rotate, thereby ensuring the stability of the vacuum cleaner; when the vacuum cleaner is in a blowdown state, the primary filter can be driven to rotate by a blowdown air flow, so that hair and other filamentous substances wound on the primary filter can be loosened when the vacuum cleaner performs a dust cleaning work, the filamentous substances are more likely to fall off, and therefore dirt on the outer surface of the primary filter is more likely to be sucked off, on the one hand, the cleaning of the dirt in the dust cup is realized, and on the other hand, the cleaning of the primary filter is simultaneously realized, a cleaning mechanism for cleaning the primary filter does not need to be additionally arranged, the structure is simpler, the cost is lower, the primary filter is less likely to be blocked, and the vacuum cleaner can continuously maintain a better cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without paying creative labor.

[0051] Figure 1 It is an embodiment of the structure schematic diagram of the vacuum cleaner (in a cleaning work state) provided by the utility model;

[0052] Figure 2 It is an embodiment of the structure schematic diagram of the vacuum cleaner (in a cleaning work state) provided by the utility model; Figure 1 It is a sectional structure schematic diagram of the vacuum cleaner described in the utility model;

[0053] Figure 3 for Figure 1 A schematic diagram of the vacuum cleaner described above (in the sewage discharge state);

[0054] Figure 4 for Figure 3 A cross-sectional structural diagram of the vacuum cleaner described herein;

[0055] Figure 5 for Figure 1 An exploded view of the vacuum cleaner described herein;

[0056] Figure 6 for Figure 1 A schematic diagram of the structure of the intermediate filtration device;

[0057] Figure 7 for Figure 6 A cross-sectional structural schematic diagram of the filtration device described herein;

[0058] Figure 8 for Figure 7 A magnified structural diagram of detail A in the middle;

[0059] Figure 9 for Figure 7 A magnified structural diagram of detail B in the middle;

[0060] Figure 10 for Figure 7 An exploded view of the filter device described herein;

[0061] Figure 11 A schematic diagram of an embodiment of a cleaning system provided by this utility model;

[0062] Figure 12 for Figure 11 A partial cross-sectional structural diagram of the cleaning system described herein.

[0063] Explanation of icon numbers:

[0064] 1000 - cleaning system; 100 - vacuum cleaner; 1 - dust cup; 11 - dust cup cavity; 111 - air inlet; 12 - dust cup cover; 2 - filtering device; 21 - primary filter; 211 - filtering support; 2111 - contact part; 2112 - abutment part; 212 - filtering screen; 213 - stop part; 2131 - stop protrusion; 214 - first blade; 22 - secondary filter; 221 - multi-cone filtering structure; 2211 - first positioning column; 2212 - extension part; 222 - cover plate; 2221 - second positioning column; 2222 - clamping groove; 223 - secondary dust collection part; 224 - secondary dust outlet; 225 - limiting piece; 2251 - limiting ring; 3 - cleaning main body; 31 - dust suction pipeline; 32 - clamping block; 4 - upper bearing structure; 41 - upper bearing; 5 - lower bearing structure; 51 - lower bearing; 6 - first suction device; 71 - first damping part; 72 - second damping part; 200 - dust collection station.

[0065] The purposes, functional features and excellent effects of the utility model are described further below in combination with specific embodiments and drawings. DETAILED DESCRIPTION

[0066] The technical solutions in the embodiments of the utility model will be described clearly and completely below in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0067] It should be noted that if the embodiments of the utility model involve directional indications, the directional indications are only used to explain the relative positional relationship, movement condition and the like between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0068] In addition, if the embodiments of the utility model involve descriptions such as "first", "second" and the like, the descriptions of "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is also not within the scope of protection required by the utility model.

[0069] The utility model provides a vacuum cleaner 100, specifically, please refer to Figures 1 to 4 In the embodiment, the vacuum cleaner 100 includes a cleaning main body 3, a dust cup 1 and a filter device 2; the dust cup 1 is detachably arranged on the cleaning main body 3, and the dust cup 1 includes a dust cup cavity 11 and a dust cup cover 12 capable of opening and closing the dust cup cavity 11; the filter device 2 is fixedly connected to the cleaning main body 3 and at least partially located in the dust cup 1, and the filter device 2 includes a primary filter 21 and a secondary filter 22 located downstream of the primary filter 21, and the primary filter 21 or the secondary filter 22 has a rotating state.

[0070] In the embodiment, the dust cup 1 is detachably arranged on the cleaning main body 3, and when it is necessary to replace or clean the dust cup 1, the dust cup 1 is convenient to disassemble and assemble; moreover, the filter device 2 and the cleaning main body 3 are fixedly connected, so that the disassembly of the dust cup 1 does not affect the disassembly of the filter device 2, the dust cup 1 can be cleaned alone, and moreover, after the dust cup 1 is disassembled, at least part of the filter device 2 is exposed, so that the filter device 2 is also convenient to clean; the filter device 2 includes the primary filter 21 and the secondary filter 22, and after one-time filtration by the primary filter 21, secondary filtration can be performed by the secondary filter 22, so that double filtration ensures that the filtration effect of the vacuum cleaner 100 is better, so that dirt can be better retained in the dust cup 1. Specifically, the filter device 2 and the cleaning main body 3 are detachably fixedly connected, and after the dust cup 1 is disassembled, if it is necessary to clean the filter device 2 more thoroughly, the filter device 2 can also be disassembled from the cleaning main body 3.

[0071] In one embodiment, the filter device 2 is detachably connected to the cleaning main body 3 through the secondary filter 22, and the primary filter 21 is rotatably arranged on the secondary filter 22.

[0072] In one embodiment, the vacuum cleaner 100 has a cleaning working state when the dust cup cover 12 is closed and a dirt discharging state when the dust cup cover 12 is opened; when in the dirt discharging state, a dirt discharging air flow can be formed in the dust cup 1, and the primary filter 21 can be driven to rotate under the action of the dirt discharging air flow;

[0073] Further, when the vacuum cleaner 100 is normally used for cleaning, the primary filter 21 does not rotate, ensuring the stability of the vacuum cleaner 100; when the vacuum cleaner 100 is in the state of discharging dirt, the primary filter 21 is driven to rotate by the airflow, so that the hair and other filamentous materials wound on the primary filter 21 can be loosened, and the filamentous materials are more likely to fall off, so that the dirt on the outer surface of the primary filter 21 is more likely to be sucked away, thereby realizing the cleaning of the dirt in the dust cup 1 and the cleaning of the primary filter 21, without the need for an additional cleaning mechanism to clean the primary filter 21, thus being simpler in structure and lower in cost, and preventing the primary filter 21 from being easily blocked, so that the vacuum cleaner 100 can continuously maintain a better cleaning effect.

[0074] The cleaning body 3 can include a cleaning shell and a first suction device 6 arranged in the cleaning shell, the first suction device 6 being in communication with the secondary filter 22, and a dust suction pipeline 31 being formed on the cleaning body 3 and adapted to be in communication with the outside. An air inlet 111 is formed on the peripheral wall of the dust cup 1, and the air inlet 111 is in communication with the dust cup cavity 11 and the dust suction pipeline 31. When the vacuum cleaner 100 is normally used for cleaning, the first suction device 6 forms an airflow, so that the dirt from the outside can enter the dust cup 1 through the dust suction pipeline 31, and then pass through the primary filter 21 and the secondary filter 22 for double filtration, and then the clean airflow enters the first suction device 6, and the filtered dirt remains in the dust cup 1. After the vacuum cleaner 100 is completely cleaned, the dirt in the dust cup 1 can be treated in a centralized manner.

[0075] Preferably, the dust cup 1 is substantially cylindrical, and a primary dust discharge port is formed at the bottom of the dust cup 1, and the dust cup cover 12 can open and close the primary dust discharge port. It should be noted that, in combination with the directions shown in Figure 1 and Figure 3 When the vacuum cleaner 100 is normally used, the axial direction of the dust cup 1 is set to be along the up-down direction, and the dust cup cover 12 is arranged at the bottom of the dust cup 1. Preferably, the secondary filter 22 is arranged inside the primary filter 21, and the primary filter 21 and the secondary filter 22 are coaxially arranged with the dust cup 1. The cleaning shell is connected to the upper end of the dust cup 1, and the first suction device 6 is arranged in the cleaning shell and in communication with the air outlet end of the secondary filter 22. The following description of the orientation can be referred to the above orientation unless otherwise specified.

[0076] The filter device 2 can be directly or indirectly fixedly connected to the cleaning body 3 through the secondary filter 22, so that the secondary filter 22 remains in a stationary state relative to the cleaning body 3, and the primary filter 21 can rotate relative to the cleaning body 3 when in the state of discharging dirt.

[0077] It can be understood that the rotation of the primary filter 21 can be active rotation or passive rotation. For example, the primary filter 21 can be driven by a driving component to control the rotation and the rest of the primary filter 21.

[0078] Preferably, the primary filter 21 is rotated by the action of the exhaust air flow and is at rest by the action of the damping part, which is simpler in structure and lower in cost. Specifically, the cleaning body 3 comprises at least one damping part for limiting the rotation of the primary filter 21 in the cleaning working state, and the primary filter 21 is abutted or limited by the at least one damping part, so that the primary filter 21 can be better at rest in the cleaning working state, thereby ensuring the stability of the vacuum cleaner 100.

[0079] In an embodiment, the limiting of the primary filter 21 can be achieved by the movement of the damping part and / or the movement of the primary filter 21, so that the primary filter 21 is limited when the damping part and the primary filter 21 are in contact, and so that the primary filter 21 can rotate relative to the secondary filter 22 when the damping part and the primary filter 21 are separated.

[0080] Preferably, the at least one damping part is arranged on the dust cup cover 12, and the at least one damping part is abutted on the primary filter 21 when the dust cup cover 12 closes the dust cup cavity 11, thereby limiting the primary filter 21. In the exhaust state, since the dust cup cover 12 opens the primary dust outlet, the dust cup cover 12 and the damping part are away from the primary filter 21, and when the dust cup cover 12 is closed, the dust cup cover 12 and the damping part move towards the primary filter 21, and when the dust cup cover 12 is completely closed, the damping part abuts on the primary filter 21, thereby limiting the rotation of the primary filter 21 under the resistance of the damping part.

[0081] Further preferably, the damping part is provided with two. Specifically, the cleaning body 3 comprises a first damping part 71 and a second damping part 72, and in the cleaning working state, as shown in FIG. 4, the first damping part 71 and the second damping part 72 are respectively abutted on the two axial ends of the primary filter 21, so that the two axial ends of the primary filter 21 are respectively limited by the first damping part 71 and the second damping part 72, and the primary filter 21 is more stable in the rest state and is not easy to shake. Figure 2

[0082] ​The first damping part 71 is arranged on the secondary filter 22 and is pressed on the top end of the primary filter 21 in the cleaning state, and the second damping part 72 is arranged on the dust cup cover 12 and is pressed on the bottom end of the primary filter 21 in the cleaning state. The first damping part 71 can better limit the upper end of the primary filter 21, and the first damping part 71 and the second damping part 72 are cooperated to clamp the two axial ends of the primary filter 21, so that the primary filter 21 can better keep static state relative to the secondary filter 22 and is not easy to shake and produce abnormal sound.

[0083] Preferably, the primary filter 21 has an axial activity stroke, so that the primary filter 21 can have a small movement stroke in the up-down direction, thereby better interacting with and separating from the first damping part 71 and the second damping part 72, so that the primary filter 21 can rotate more smoothly and has better stability when static.

[0084] Specifically, in combination with the figures shown in Figure 3 and Figure 4 When in the state of discharging dirt, the first damping part 71 is in contact with or separated from the primary filter 21, and the primary filter 21 can only contact the first damping part 71 without generating relative abutting force, so that the primary filter 21 can still rotate in this state, and the second damping part 72 is separated from the primary filter 21. When the dust cup cover 12 moves from the open state to the closed state, the second damping part 72 can be driven to abut on the primary filter 21 under the action of the closing force of the dust cup cover 12 and drive the primary filter 21 to move towards the first damping part 71, and when the dust cup cover 12 completely closes the dust cup cavity 11, the first damping part 71 and the second damping part 72 abut on the two ends of the primary filter 21, respectively.

[0085] In the process of closing the dust cup cover 12, the second damping part 72 is pressed against the lower end of the primary filter 21, which promotes the upward movement of the primary filter 21, so that the upper end of the primary filter 21 gradually approaches the first damping part 71 and forms a pressing action, and at the same time, the second damping part 72 also gradually approaches the lower end of the primary filter 21 and forms a pressing action, so that when the primary dust discharge port is completely closed by the dust cup cover 12, the upper and lower ends of the primary filter 21 are both restricted to be completely fixed in the dust cup 1. In the process of opening the dust cup cover 12, the dust cup cover 12 moves away from the primary filter 21 together with the second damping part 72, the bottom end of the primary filter 21 is no longer limited by the abutting action of the second damping part 72, and under the action of its own gravity, the primary filter 21 can move slightly downward, so that the upper end of the primary filter 21 is in light contact or separated from the first damping part 71. Therefore, when the exhaust gas flow is formed in the dust cup 1, the primary filter 21 can rotate more smoothly, so that the dirt wrapped around the outer circumferential side of the primary filter 21 is easily loosened and falls down, and the primary filter 21 is better cleaned.

[0086] Specifically, the first damping part 71 can be provided as a rubber ring to be sleeved on the outer circumferential side of the upper end of the secondary filter 22. The second damping part 72 can be provided as a rubber pad arranged on the inner side of the dust cup cover 12.

[0087] For the primary filter 21, as shown in Figure 6 and Figure 10 The primary filter 21 comprises a filter support 211 and a filter screen 212 arranged on the filter support 211. The filter support 211 is arranged in a substantially open-ended cylindrical shape, and at least part of the circumferential surface thereof is arranged in a hollowed-out manner. The filter screen 212 is arranged in a ring shape at the hollowed-out region of the filter support 211. For the secondary filter 22, the secondary filter 22 comprises a multi-cone filter structure 221 and a secondary dust collecting part 223 connected to the bottom end of the multi-cone filter structure 221. The two ends of the filter support 211 are rotatably connected to the multi-cone filter structure 221 and the secondary dust collecting part 223, respectively, so that the two ends of the primary filter 21 are connected to the multi-cone filter structure 221 and the secondary dust collecting part 223. The filter support 211 is arranged around the outer circumferential side of the secondary dust collecting part 223, the top end of the filter support 211 is connected to the upper end of the multi-cone filter structure 221, and the bottom end of the filter support 211 is connected to the lower end of the secondary dust collecting part 223. The multi-cone filter structure 221 is connected to the cleaning main body 3, so that the primary filter 21 is connected to the cleaning main body 3. The disassembly of the dust cup 1 does not affect the filter device 2, and after the dust cup 1 is disassembled, the filter device 2 is still connected to the cleaning main body 3, so that the cleaning of the dust cup 1 and the filter device 2 is more convenient.

[0088] Preferably, in combination with Figure 7 and Figure 8 As shown in the drawings, the upper end of the primary filter 21 is rotatably connected with the multi-cone filter structure 221 through the upper bearing structure 4, so that the rotation of the primary filter 21 is smoother.

[0089] Furthermore, the upper end of the primary filter 21 is in abutting fit with the upper bearing structure 4 to limit the upward displacement of the primary filter 21, and the upward movement of the primary filter 21 is limited by the upper bearing structure 4.

[0090] Further, the secondary filter 22 further comprises a cover plate 222, which is arranged on the top end of the multi-cone filter structure 221 and detachably connected with the cleaning body 3, the upper bearing structure 4 is arranged between the cover plate 222 and the multi-cone filter structure 221, and the primary filter 21 is sleeved on the outer circumferential side of the upper bearing structure 4 and in rolling contact with the upper bearing structure 4.

[0091] Preferably, in combination with Figure 7 , Figure 8 and Figure 10 As shown in the drawings, the upper bearing structure 4 can be formed on the circumferential side of the secondary filter 22, specifically, the upper bearing structure 4 comprises an extension part 2212 arranged on the multi-cone filter structure 221 and an upper bearing 41 arranged on the extension part 2212; the primary filter 21 comprises a contact part 2111, which is annularly arranged on the outer side of the upper bearing 41 and in rolling fit with the upper bearing 41. Through the rolling fit between the upper bearing 41 and the contact part 2111, the upper end of the primary filter 21 can be in rotational fit with the secondary filter 22, and the size of the upper bearing 41 is relatively smaller, so that the installation is more convenient and the cost is lower.

[0092] Further preferably, the primary filter 21 further comprises an abutting part 2112, which can be in abutting fit with the extension part 2212 to limit the upward movement of the primary filter 21 when the vacuum cleaner is in the cleaning state with the dust cup cover (12) closed; the bottom surface of the extension part 2212 is obliquely arranged, specifically, in the radial direction of the dust cup 1 and from the inside to the outside, the bottom surface of the extension part 2212 is obliquely arranged upward, and the top surface of the abutting part 2112 is obliquely arranged in a shape matching the bottom surface of the extension part 2212 to better fit the bottom surface of the extension part 2212, so that the structure is more compact and the abutting effect is better.

[0093] In an embodiment, as Figure 10As shown in the drawings, the extension part 2212 is provided with a plurality of extension parts 2212, and the plurality of extension parts 2212 are arranged along the circumference of the secondary filter 22 to be uniformly arranged on the circumference of the secondary filter 22. The upper bearing 41 is provided with a plurality of upper bearings 41, and the plurality of upper bearings 41 are arranged one by one on the plurality of extension parts 2212; the contact part 2111 is arranged on the outer circumferential side of the plurality of upper bearings 41 and is in rolling contact with the plurality of outer bearings; the plurality of upper bearings 41 are in rolling connection with the contact part 2111, so that the contact between the primary filter 21 and the secondary filter 22 is more balanced, and the rotation is more smooth.

[0094] Specifically, in combination with Figure 8 As shown in the drawings, the first positioning column 2211 is arranged on each extension part 2212, the second positioning column 2221 is arranged on the cover plate 222, and the positioning hole is arranged on each second positioning column 2221; the first positioning column 2211 is inserted into the positioning hole one by one, and the upper bearing 41 is sleeved on the outer side of the second positioning column 2221 one by one; and the surface where the first positioning column 2211 is located and the surface where the second positioning column 2221 is located are respectively pressed on the two ends of the upper bearing 41 along the axial direction, so as to completely limit the inner ring of each upper bearing 41, and make the outer ring of each upper bearing 41 in rolling contact with the filter support 211.

[0095] Moreover, the first connecting hole is arranged on the multi-cone filter structure 221, the second connecting hole is arranged on the cover plate 222, the first connecting hole and the second connecting hole are arranged one by one, and are fixedly connected by a connecting piece such as a screw or a bolt. The connection stability of the multi-cone filter structure 221 and the cover plate 222 is better.

[0096] In addition, the upper end of the cover plate 222 is in contact with the inner side wall of the dust cup 1, and the annular hole is arranged on the outer circumferential side of the cover plate 222. The sealing piece is arranged in the annular hole, and the sealing between the dust cup 1 and the filter device 2 is better realized by the sealing piece, so as to avoid the leakage of dust from the gap between the dust cup 1 and the cover plate 222.

[0097] In order to facilitate the disassembly of the filter device 2, the clamping groove 2222 is arranged on one of the cover plate 222 and the cleaning main body 3, and the clamping block 32 is arranged on the other one in clamping cooperation with the clamping groove 2222. The clamping block 32 can be clamped in the clamping groove 2222 from the notch.

[0098] Preferably, in combination with Figure 5 , Figure 6 and Figure 10As shown, the bottom of the cleaning shell is annularly arranged, the upper end of the cover plate 222 is provided with a flange, the flange is sleeved on the cleaning shell, the clamping block 32 is arranged on the inner ring side of the cleaning shell, and the clamping groove 2222 is arranged on the outer circumferential side of the flange. Moreover, the clamping groove 2222 is provided with a plurality of clamping grooves 2222, and the plurality of clamping grooves 2222 are arranged at intervals along the circumference of the flange. The clamping block 32 is also provided with a plurality of clamping blocks 32, and the plurality of clamping blocks 32 are arranged in one-to-one correspondence with the plurality of clamping grooves 2222. When the filter device 2 is installed, the plurality of clamping blocks 32 can be correspondingly matched with the plurality of notches on the clamping grooves 2222. After each clamping block 32 is inserted into the corresponding clamping groove 2222, the filter device 2 is rotated, so that each clamping block 32 is misaligned with the notch on the corresponding clamping groove 2222, thereby fixing the filter device 2 to the cleaning main body 3. Moreover, a clamping protrusion can be arranged on the groove side wall of each clamping groove 2222, and a corresponding groove is arranged on each clamping block 32. When each clamping block 32 is rotated and the corresponding clamping protrusion is clamped with the groove, it indicates that the filter device 2 is installed in place. Moreover, each clamping block 32 is not easy to rotate relative to the clamping groove 2222 under the action of the clamping protrusion and the groove, which can better ensure the stability of the installation of the filter device 2.

[0099] Preferably, the lower end of the primary filter 21 is rotatably connected with the secondary dust collecting part 223 through the lower bearing structure 5, further making the rotation of the primary filter 21 more smooth.

[0100] Among them, in combination with Figure 7 and Figure 9 As shown, the lower bearing structure 5 includes a lower bearing 51 sleeved on the outer side of the secondary dust collecting part 223, and a limiting piece 225; a stop portion 213 is arranged on the primary filter 21, and the stop portion 213 and the limiting piece 225 respectively abut on the two ends of the axial direction of the lower bearing 51. The limiting piece 225 limits the lower bearing 51, and further limits the primary filter 21.

[0101] Preferably, in combination with Figure 9 and Figure 10 As shown, the limiting piece 225 includes a limiting ring 2251, and the limiting ring 2251 is screwed on the lower end of the secondary dust collecting part 223. Among them, the limiting ring 2251 is roughly annular, and an internal thread is arranged on the inner side of the limiting ring 2251. An external thread is arranged on the outer circumferential side of the secondary dust collecting part 223. The limiting ring 2251 can be sleeved on the secondary dust collecting part 223 from the bottom of the secondary filter 22 and screwed with the secondary dust collecting part 223, so as to abut on the bottom end of the lower bearing 51 along the axial direction. It can be understood that the setting mode of the limiting piece 225 includes but is not limited to the above-mentioned one. In other embodiments, the limiting piece 225 can also be set as a limiting clamping protrusion, a limiting convex block or an elastic limiting piece 225, etc. However, through the screwing mode of the limiting ring 2251, the disassembly of the limiting ring 2251 is more convenient, and the assembly of the primary filter 21 and the secondary filter 22 is also more convenient.

[0102] As shown in Figure 9 The stop portion 213 includes a stop protrusion 2131 protruding inwardly from the filter support 211, which is press-fitted to the upper end of the lower bearing 51 along the axial direction thereof, and the limiting ring 2251 abuts against the bottom end of the lower bearing 51 along the axial direction thereof, so that the position of the primary filter 21 in the dust cup 1 is more accurate and stable.

[0103] Further, at least part of the filter support 211 is annularly arranged at the outer circumferential side of the secondary dust collecting portion 223 and is adapted to the shape of the secondary dust collecting portion 223, and at least part of the upper end of the secondary dust collecting portion 223 overlaps the inner side of the filter support 211. Specifically, as shown in Figure 7 The secondary dust collecting portion 223 is substantially funnel-shaped, the flared end of the secondary dust collecting portion 223 faces upward and toward the dust falling end of the multi-cone filter structure 221, so that the dust falling from the multi-cone filter structure 221 can better enter the secondary dust collecting portion 223; the constricted end of the secondary dust collecting portion 223 faces downward and is in communication with the dust cup cavity 11. A one-way cover plate can be arranged at the secondary dust discharging port 224, and when the suction airflow is formed in the dust cup 1, the one-way cover plate can rotate toward the direction of opening the secondary dust discharging port 224 to open the secondary dust discharging port 224, so that the dirt in the secondary dust collecting portion 223 can fall out. The part of the filter support 211 annularly arranged at the outer side of the secondary dust collecting portion 223 is funnel-shaped and is adapted to the secondary dust collecting portion 223, so that the gap between the filter support 211 and the secondary dust collecting portion 223 is smaller, and the dust flow path is extended, the dust in the dust cup 1 is less likely to flow reversely between the filter support 211 and the secondary dust collecting portion 223, and a better barrier is formed.

[0104] Moreover, the bottom end of the filter support 211 is open; the bottom of the secondary dust collecting portion 223 is provided with the secondary dust discharging port 224, which is located in the filter support 211 and is in communication with the filter support 211. At least part of the bottom end of the filter support 211 is spaced apart from the outer side of the secondary dust collecting portion 223 and abuts against the dust cup cover 12 when the dust cup cover 12 is closed. The secondary dust discharging port 224 is spaced apart from the dust cup cover 12, so that when the secondary dust discharging port 224 is opened, the dust in the secondary dust collecting portion 223 can better fall out and is less likely to be blocked.

[0105] In an embodiment, in combination with Figure 5 and Figure 6As shown, a plurality of first vanes 214 are arranged on the outer circumferential side of the filter support 211, the plurality of first vanes 214 are arranged at intervals along the circumferential direction of the filter support 211, and the plurality of first vanes 214 are arranged on the outer side of the secondary dust collecting part 223 in a ring shape. The plurality of first vanes 214 are pushed by the exhaust gas flow, so that the primary filter 21 can be more easily rotated. Each first vane 214 extends along the axial direction of the primary filter 21; or each first vane 214 extends along the axial direction of the primary filter 21 and inclines to the same side, and the rotation direction of the plurality of first vanes 214 is consistent with the first direction, so that the normal of each first vane 214 is as parallel as possible to the direction of the gas flow, and the pushing effect of the gas flow on the vanes is optimized. Preferably, the angle between the first vane 214 and the rotation axis of the primary filter 21 is less than 90°, preferably less than 45°. In the case of very small gas flow, the primary filter 21 can be better rotated.

[0106] Preferably, the height of the air inlet 111 of the dust cup 1 is higher than the arrangement height of the plurality of first vanes 214, that is, in the up-down direction, the air inlet 111 is located above the plurality of first vanes 214, and the exhaust gas flow flows downward in the dust cup 1, so that the gas flow can better blow to the plurality of first vanes 214 to push the primary filter 21 to rotate.

[0107] Furthermore, a plurality of second vanes (not shown in the drawings) are arranged on the outer circumferential side of the filter support 211, the plurality of second vanes are located above the plurality of first vanes 214 and correspond to the air inlet 111, and the gas flow entering the dust cup 1 from the air inlet 111 can better blow to the second vanes to further improve the rotation efficiency of the primary filter 21.

[0108] The utility model also provides a kind of cleaning system 1000, in combination Figure 11 And Figure 12 As shown, the cleaning system 1000 includes the above-mentioned vacuum cleaner 100 and dust collecting station 200, which can be used to place the vacuum cleaner 100, provide power to the vacuum cleaner 100 and / or clean the dust cup 1 of the vacuum cleaner 100. Specifically, when the vacuum cleaner 100 is in a cleaning state, the primary filter 21 of the vacuum cleaner 100 is in a non-rotating state; when the vacuum cleaner 100 is placed on the dust collecting station 200 and is in an exhaust state, the primary filter 21 can be rotated under the action of the exhaust gas flow formed in the dust cup 1 of the vacuum cleaner 100, so that the dirt wrapped outside the primary filter 21 can be better loosened and discharged, and the cleaning effect in the dust cup 1 of the vacuum cleaner 100 is better.

[0109] The forming power of the exhaust air flow can be derived from the vacuum cleaner 100 itself, or the forming power of the exhaust air flow can be derived from the dust collection station 200, or the forming power of the exhaust air flow can be derived from an external power device.

[0110] In an embodiment, the first suction device 6 is arranged on the vacuum cleaner 100, and when the vacuum cleaner 100 is in a cleaning state, the first suction device 6 can form a suction air flow in a first direction, and the first suction device 6 is located downstream of the secondary filter 22 in the direction of the suction air flow. The suction air flow formed by the first suction device 6 enters the dust cup cavity 11 from the air inlet 111 through the dust suction pipe 31, passes through the primary filter 21 for primary filtration, enters the secondary filter 22, and the clean air flow filtered by the secondary filter 22 enters the first suction device 6 and is discharged through the air outlet end of the first suction device 6. The first suction device 6 provides the suction power for the vacuum cleaner 100 to work, so that the cleaning effect of the vacuum cleaner 100 is better.

[0111] Further, when the vacuum cleaner 100 is placed on the dust collection station 200 and is in an exhaust state, the first suction device 6 can form an exhaust air flow in a second direction opposite to the first direction; the exhaust air flow can flow from the first suction device 6 towards the secondary filter 22 and pass through the primary filter 21, then enter the dust cup 1 to flow towards the dust collection station 200, and the primary filter 21 can be driven to rotate under the action of the exhaust air flow. That is, the first suction device 6 can form a reverse air flow, so that the air flow blows out from the first suction device 6, enters the secondary filter 22, then enters the primary filter 21, and finally enters the dust cup 1 to flow towards the dust collection station 200, which can not only drain the dirt in the dust cup 1 into the dust collection station 200, but also realize reverse soot blowing of the primary filter 21 and the secondary filter 22, effectively cleaning the residual dirt in the primary filter 21 and the secondary filter 22 to avoid blockage.

[0112] Specifically, the first suction device 6 can be provided with a first motor, and the air flow direction can be changed by forward rotation or reverse rotation of the first motor. Alternatively, a wind channel switching structure can also be arranged on the vacuum cleaner 100 to switch the air flow, so that the first suction device 6 can form a suction air flow in the first direction in the dust cup 1 and an exhaust air flow in the second direction, and the dust collection station 200 does not need to be additionally provided with an exhaust power device, the structure of the entire cleaning system 1000 is simpler, and the cost is also lower.

[0113] In another embodiment, as Figure 12As shown in the drawings, the dust collecting station 200 can include a second suction device, which can form a blowdown air flow flowing from the dust cup 1 to the dust collecting station 200 when the vacuum cleaner 100 is placed on the dust collecting station 200 and in the blowdown state, so as to realize self-cleaning of the dust cup 1. Specifically, when the vacuum cleaner 100 is placed on the base station, the dust cup cover 12 of the vacuum cleaner 100 is opened, and the primary dust outlet is communicated with the dust collecting station 200. The dust collecting station 200 can be provided with a sewage storage cavity or directly communicated with a sewage pipe, and the sewage storage cavity or the sewage pipe is communicated with the primary dust outlet. When the second suction device is started, a negative pressure is formed in the sewage storage cavity or the sewage pipe, so that an air flow is formed from the air inlet 111 to the dust cup 1 and flows to the dust collecting station 200. Under the action of the air flow, the dirt in the dust cup 1 is brought into the sewage storage cavity or the sewage pipe. At the same time, under the action of the blowdown air flow, the primary filter 21 rotates relative to the secondary filter 22, so that the dirt outside the primary filter 21 is more easily loosened, and the dirt can fall into the dust collecting station 200 together under the action of the blowdown air flow, thereby realizing cleaning of the primary filter 21 and better ensuring the cleaning effect of the vacuum cleaner 100.

[0114] It should be noted that the utility model does not limit the form of the primary filter 21 and the secondary filter 22, and in the embodiments, the two are any one of a cyclone separator or a non-cyclone separator without specific description.

[0115] The above only describes the preferred embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or direct or indirect application in other related technical fields based on the content of the utility model specification and drawings is also included in the patent protection range of the utility model.

Claims

1. A vacuum cleaner characterised in that, The vacuum cleaner comprises: a cleaning body; a dust cup detachably arranged on the cleaning body; a filtering device fixed to the cleaning body and at least partially located in the dust cup, the filtering device comprising a primary filter and a secondary filter located downstream of the primary filter, the primary filter and / or the secondary filter having a rotating state; when the dust cup is detached from the cleaning body, the filtering device remains connected to the cleaning body.

2. The vacuum cleaner of claim 1, wherein, The filtering device is detachably connected to the cleaning body through the secondary filter, and the primary filter is rotatably arranged on the secondary filter.

3. The vacuum cleaner of claim 1, wherein, The dust cup comprises a dust cup cavity and a dust cup cover capable of opening and closing the dust cup cavity, and the vacuum cleaner has a cleaning working state with the dust cup cover closed and a pollution discharging state with the dust cup cover opened. In the pollution discharging state, a pollution discharging air flow is formed in the dust cup, and the primary filter is driven to rotate under the action of the pollution discharging air flow, and the cleaning body comprises at least one damping part for limiting the rotation of the primary filter in the cleaning working state.

4. The vacuum cleaner of claim 3, wherein, At least one damping part is arranged on the dust cup cover and abuts against the primary filter when the dust cup cover closes the dust cup cavity.

5. The vacuum cleaner of claim 3, wherein, The cleaning body comprises a first damping part and a second damping part, and the first damping part and the second damping part abut against the two axial ends of the primary filter respectively in the cleaning working state.

6. The vacuum cleaner of claim 5, wherein, The first damping part is arranged on the secondary filter and is in pressure contact with the top end of the primary filter in the cleaning working state. The second damping part is arranged on the dust cup cover and is in pressure contact with the bottom end of the primary filter in the cleaning working state.

7. The vacuum cleaner of claim 5, wherein, The primary filter has an axial movement stroke.

8. The vacuum cleaner of claim 7, wherein, In the pollution discharging state, the first damping part is in contact with or separated from the primary filter, and the second damping part is separated from the primary filter. When the dust cup cover moves from the opened state to the closed state, the second damping part is driven to abut against the primary filter and move the primary filter towards the first damping part under the action of the closing force of the dust cup cover, and the first damping part and the second damping part abut against the two ends of the primary filter respectively when the dust cup cover completely closes the dust cup cavity.

9. The vacuum cleaner of claim 3, wherein, The secondary filter comprises: a multi-cone filter structure; a secondary dust collecting part connected to the bottom end of the multi-cone filter structure; the two ends of the primary filter are rotatably connected to the multi-cone filter structure and the secondary dust collecting part respectively.

10. The vacuum cleaner of claim 9, wherein, The upper end of the primary filter is rotatably connected to the multi-cone filter structure through an upper bearing structure.

11. The vacuum cleaner of claim 10, wherein, The secondary filter further comprises a cover plate arranged on the top end of the multi-cone filter structure and detachably connected to the cleaning body, the upper bearing structure is arranged between the cover plate and the multi-cone filter structure, and the primary filter is arranged on the outer circumferential side of the upper bearing structure and in rolling contact with the upper bearing structure.

12. The vacuum cleaner of claim 11, wherein, The upper bearing structure comprises an extension part arranged on the multi-cone filter structure, and a plurality of upper bearings arranged on the extension part, and the cover plate is arranged on the plurality of upper bearings; The primary filter comprises a contact part arranged on the outer side of the plurality of upper bearings and in rolling contact with the plurality of upper bearings.

13. The vacuum cleaner of claim 11, wherein, One of the cover plate and the cleaning body is provided with a clamping groove, and the other is provided with a clamping block matched with the clamping groove, one side of the clamping groove is provided with a notch, and the clamping block can be clamped in the clamping groove from the notch.

14. The vacuum cleaner of claim 9, wherein, The lower end of the primary filter is rotatably connected to the secondary dust collecting part through a lower bearing structure.

15. The vacuum cleaner of claim 14, wherein, The lower bearing structure comprises a lower bearing arranged on the outer side of the secondary dust collecting part and a limiting piece; The primary filter is provided with a stop part, and the stop part and the limiting piece respectively abut the two ends of the axial direction of the lower bearing.

16. The vacuum cleaner of claim 15, wherein, The primary filter comprises a filter support arranged on the outer circumferential side of the secondary dust collecting part, and the stop part comprises a stop protrusion protruding on the inner ring side of the filter support; and / or, The limiting piece comprises a limiting ring screwed with the secondary dust collecting part, and the limiting ring abuts the bottom of the lower bearing.

17. The vacuum cleaner of claim 9, wherein, The primary filter comprises a filter support and a filter screen arranged on the filter support, and the filter screen is arranged on the outer circumferential side of the multi-cone filter structure; At least part of the filter support is arranged on the outer circumferential side of the secondary dust collecting part and is matched with the shape of the secondary dust collecting part, and at least part of the upper end of the secondary dust collecting part overlaps the inner side of the filter support.

18. The vacuum cleaner of claim 17, wherein, The bottom end of the filter support is arranged in an open manner; the bottom of the secondary dust collecting part is provided with a secondary dust discharging port, and the secondary dust discharging port is located in the filter support and communicates with the filter support.

19. The vacuum cleaner of claim 17, wherein, The outer circumferential side of the filter support is provided with a plurality of first vanes, and the plurality of first vanes are arranged at intervals along the circumferential direction of the filter support and correspondingly arranged on the outer side of the secondary dust collecting part.

20. The vacuum cleaner of claim 19, wherein, The cleaning body is formed with a dust suction pipeline adapted to communicate with the outside; The circumferential wall of the dust cup is provided with an air inlet, and the air inlet communicates the dust cup cavity and the dust suction pipeline, and the height of the air inlet is higher than the arrangement height of the plurality of first vanes.

21. The vacuum cleaner of claim 20, wherein, The outer circumferential side of the filter support is provided with a plurality of second vanes, and the plurality of second vanes are located above the plurality of first vanes and correspondingly arranged at the air inlet.

22. A cleaning system characterized by, The vacuum cleaner comprises: The vacuum cleaner according to any one of claims 1 to 21; A dust collecting station for placing the vacuum cleaner; When the vacuum cleaner is in a cleaning state, a primary filter of the vacuum cleaner is in a non-rotating state; when the vacuum cleaner is placed on the dust collecting station and is in a sewage discharging state, the primary filter can rotate under the action of a sewage discharging airflow formed in a dust cup of the vacuum cleaner.

23. The cleaning system of claim 22, wherein, The vacuum cleaner further comprises a first suction device, which, when the vacuum cleaner is in a cleaning state, forms a suction airflow in a first direction, and is located downstream of a primary filter of the vacuum cleaner in the direction of the suction airflow.

24. The cleaning system of claim 23, wherein, When the vacuum cleaner is placed on the dust collection station and is in a dirt discharging state, the first suction device forms a dirt discharging airflow in a second direction opposite to the first direction. The dirt discharging airflow flows from the first suction device towards the primary filter, passes through the primary filter, enters the dust cup, and flows to the dust collection station, and the primary filter is driven to rotate under the action of the dirt discharging airflow.

25. The cleaning system of claim 22, wherein, The dust collection station comprises a second suction device, which, when the vacuum cleaner is placed on the dust collection station and is in a dirt discharging state, forms a dirt discharging airflow flowing from the dust cup towards the dust collection station.

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