CN114886328B

CN114886328B - Cleaning system

Info

Publication number: CN114886328B
Application number: CN202210810863.XA
Authority: CN
Inventors: 杨永波
Original assignee: Suzhou Simple Youwei Technology Co Ltd
Current assignee: Suzhou Simple Youwei Technology Co Ltd
Priority date: 2022-07-11
Filing date: 2022-07-11
Publication date: 2022-09-27
Anticipated expiration: 2042-07-11
Also published as: CN115381333B; CN114886328A; CN115381333A

Abstract

A cleaning system includes a surface cleaning apparatus and a base station. The surface cleaning apparatus includes a fan assembly for generating a suction airstream and a dirt cup assembly for collecting dirt. And a first filter is arranged at the air outlet of the cyclone separation chamber. The first filter is rotated by the suction airflow generated by the fan assembly. The base station is for docking at least a portion of the surface cleaning apparatus, the base station defining a dirt collection chamber for receiving dirt transferred from the dirt discharge outlet of the dirt collection chamber. The base station is provided with a suction motor for generating a suction airstream. The suction motor is configured to generate a suction airflow to transfer dirt in the dirt cup assembly into the dirt collection chamber for a predetermined period of time after the surface cleaning apparatus is docked to the base station, and the blower assembly is operated to drive the first filter to rotate for a first predetermined period of time during the predetermined period of time during which the suction motor is operated.

Description

Cleaning system

Technical Field

The invention relates to the technical field of cleaning equipment, in particular to a cleaning system.

Background

Through basic station cooperation dust catcher, in transferring the dirty in the dust catcher to the basic station, can avoid the user to cause the phenomenon of raise dust when clearing up the dirt cup of dust catcher effectively.

However, the filter structure in the dust cup is likely to be entangled with impurities such as hair, and since the cyclone separation chamber and the dust collection chamber are separately arranged, after the dust collector is docked to the base station, the hair cannot be sucked from the filter structure by the suction airflow generated by the operation of the suction motor in the base station, and the hair needs to be handled by a user in person, which affects the user experience.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a cleaning system, which can drive a first filter to rotate by controlling a fan assembly to work simultaneously in the working period of a suction motor of a base station, so that centrifugal force is generated to throw away sundries, hair and the like attached to the first filter, and meanwhile, the sundries are sucked into a dust collecting cavity of the base station through the suction motor, thereby improving the cleaning efficiency.

In one aspect, the present invention provides a cleaning system comprising:

a surface cleaning apparatus comprising a fan assembly for generating a suction airstream and a dirt cup assembly for collecting dirt, the dirt cup assembly comprising a cyclonic separation chamber and a dirt collection chamber, the cyclonic separation chamber being disposed outside the dirt collection chamber and communicating with the dirt collection chamber through an ash slinger; a first filter is arranged at an air outlet of the cyclone separation chamber; the first filter is rotated by the suction airflow generated by the fan assembly;

a base station for docking at least a portion of the surface cleaning apparatus, the base station defining a dirt collection chamber for receiving dirt diverted from an ash discharge outlet of the dirt collection chamber, the base station being provided with a suction motor for generating a suction airflow;

wherein, upon docking of the surface cleaning apparatus to the base station, the suction motor is configured to generate a suction airflow to transfer dirt in the dirt cup assembly into the dirt collection chamber for a predetermined period of time, and the blower assembly is operable to drive the first filter to rotate for a first predetermined length of time during the predetermined period of time during which the suction motor is operable.

Optionally, the first filter is configured to start rotating and continue rotating for the first preset period of time after the suction motor is operated for a second preset period of time.

Optionally, the suction motor is configured to continue to operate for a third preset length of time after the first filter stops rotating.

Optionally, the suction motor and the fan assembly start to operate simultaneously.

Optionally, a cover is disposed at the dust outlet of the dust collecting chamber, and the cover includes a locked state and an openable state, wherein the cover is in the openable state after the surface cleaning device is docked to the base station.

Optionally, a cover opening mechanism is provided on the base station, the cover opening mechanism being configured to switch the cover from the locked state to the openable state after the surface cleaning apparatus is docked to the base station.

Optionally, the base station comprises a receiving slot for receiving the cover, and at least part of the lid opening mechanism is arranged in the receiving slot.

Optionally, the uncapping mechanism comprises a displacement member having an initial position and an uncapping position, the displacement member moving from the initial position to the uncapping position after the surface cleaning apparatus is docked to the base station.

Alternatively, the receiving groove is defined by a top wall through which the displacement member penetrates and a peripheral wall provided around the top wall.

Optionally, the surface cleaning apparatus is docked to the base station and the fan assembly, the dirt cup assembly, the dirt collection chamber and the suction motor are arranged in sequence from top to bottom in the direction of gravity.

The invention provides a cleaning system comprising a surface cleaning apparatus and a base station. The surface cleaning device comprises a fan assembly for generating suction airflow and a dust cup assembly for collecting dirt, wherein the dust cup assembly comprises a cyclone separating chamber and a dust collecting chamber, and the cyclone separating chamber is arranged outside the dust collecting chamber and communicated with the dust collecting chamber through an ash throwing port. And a first filter is arranged at the air outlet of the cyclone separation chamber. The first filter is rotated by the suction airflow generated by the fan assembly. The base station is for docking at least part of the surface cleaning apparatus, the base station defining a dirt collection chamber for receiving dirt diverted from an ash discharge port of the dirt collection chamber, the base station being provided with a suction motor for generating a suction airflow. The suction motor is configured to generate a suction airflow to transfer dirt in the dirt cup assembly into the dirt collection chamber for a predetermined period of time after the surface cleaning apparatus is docked to the base station, and the blower assembly is operated to drive the first filter to rotate for a first predetermined length of time during the predetermined period of time during which the suction motor is operated. According to the invention, the fan assembly is controlled to work simultaneously in the working period of the suction motor of the base station so as to drive the first filter to rotate, so that centrifugal force is generated to throw away sundries, hair and the like attached to the first filter, and then the sundries and the like are sucked into the dust collecting cavity of the base station through the suction motor, thereby improving the cleaning efficiency.

Drawings

FIG. 1 is a schematic view of a cleaning system according to an embodiment of the present invention;

FIG. 2 is a schematic view of a cover of the surface cleaning apparatus in a closed position according to an embodiment;

FIG. 3 is a schematic view of an embodiment of a surface cleaning apparatus with a cover in an open position;

FIG. 4 is a schematic diagram of an embodiment of the dirt cup assembly showing a locking structure;

FIG. 5 is a cross-sectional view taken along the line A-A in FIG. 4;

FIG. 6 is an enlarged view of the structure of the area C in FIG. 5;

FIG. 7 is a schematic view of a first filter with a fan disposed therein;

FIG. 8 is a cross-sectional view of another embodiment of a dirt cup assembly;

FIG. 9 is a cross-sectional view of a further embodiment of a dirt cup assembly;

FIG. 10 is a schematic view of the cover and locking structure cooperating;

FIG. 11 is a block diagram of a base station according to an embodiment;

FIG. 12 is an enlarged view of the structure of the area D in FIG. 11;

fig. 13 is a cross-sectional view of a base station in an embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.

Fig. 1 is a schematic structural diagram of a cleaning system according to an embodiment of the invention. FIG. 2 is a schematic view of a cover of the surface cleaning apparatus in a closed position according to an embodiment. FIG. 3 is a schematic structural view of an embodiment of a surface cleaning apparatus with a cover in an open position. FIG. 4 is a schematic diagram of an embodiment of a dirt cup assembly showing a locking structure. Fig. 5 is a sectional view taken along a-a direction in fig. 4. Fig. 6 is an enlarged view of a structure of a region C in fig. 5. Fig. 7 is a schematic structural view of a fan provided in the first filter. Figure 8 is a cross-sectional view of another embodiment of a dirt cup assembly. Figure 9 is a cross-sectional view of a dirt cup assembly in yet another embodiment. Fig. 10 is a schematic view of the cover and the locking structure. Fig. 11 is a schematic structural diagram of a base station in an embodiment. Fig. 12 is an enlarged view of a structure of a region D in fig. 11. Fig. 13 is a cross-sectional view of a base station in an embodiment. As shown in fig. 1, cleaning system 100 includes surface cleaning apparatus 10 and base station 20. Referring to fig. 2-5, the surface cleaning apparatus 10 includes a fan assembly 3 and a dirt cup assembly 1, the fan assembly 3 for generating a suction airstream to draw dirt from a surface to be cleaned into the dirt cup assembly 1. The dirt cup assembly 1 includes a cyclonic separation chamber 12 and a dirt collection chamber 13. The outlet of the cyclonic separating chamber 12 is provided with a rotatable first filter 7. The dust collecting chamber 13 is provided with an ash discharge port 131. The cyclone chamber 12 and the dirt collection chamber 13 may be in the same chamber, i.e. the cyclone chamber 12 is arranged above the dirt collection chamber 13. Or the cyclone chamber 12 is arranged outside the dust collecting chamber 13 and communicated with the dust throwing port 14 (refer to fig. 5).

Referring to fig. 5, the first filter 7 of the cyclone chamber 12 is typically suspended, i.e. one end is rotatably mounted on a corresponding structure of the dirt cup assembly 1, and the other end is suspended in the cyclone chamber 12, and the entangled hair can be dropped from the suspended end. Referring to FIG. 3, a lid 132 is provided at the dirt discharge opening 131 of the dirt collection chamber 13, the lid 132 including a locked state and an openable state, wherein the lid 132 is in the openable state after the surface cleaning apparatus 10 is docked to the base station 20. The locked state of the cover 132 means that the cover cannot be opened without being broken when the locking structure of the cover 132 is in the locked position. The openable state of the cover 132 means that the cover 132 can be opened by an external force, which means a suction force of the suction motor 21 or a force applied to the cover 132 by a user/driving mechanism. The cover 132 is provided with a retaining mechanism, which can make the cover 132 be in a position of closing the ash discharge port 131, but the cover 132 can be moved after receiving a certain external force, so as to open the ash discharge port 131. The retaining mechanism may be a torsion spring or other structure that can accomplish this function. Referring to FIG. 4, a latch structure 17 is also provided on the dirt cup assembly 1 to switch the cover 132 between a latched state and an openable state.

Referring to fig. 11-13, the base station 20 is for docking at least a portion of the surface cleaning apparatus 10, the base station 20 defines a dirt collection chamber 22 for receiving dirt transferred from the dirt discharge outlet 131 of the dirt cup assembly 1, the base station 20 defines an installation space within which is disposed a suction motor 21 for generating a suction airflow, the suction motor 21 being configured to generate the suction airflow to transfer at least a portion of the dirt in the dirt cup assembly 1 into the dirt collection chamber 22 for a predetermined period of time after the surface cleaning apparatus 10 is docked to the base station 20.

With continued reference to fig. 11-13, base station 20 is provided with a door opening mechanism configured to switch cover 132 from the locked state to the openable state after surface cleaning apparatus 10 is docked to base station 20. Base station 20 includes a receiving slot 286 for receiving cover 132, and at least a portion of the door release mechanism is disposed within receiving slot 286. The receiving slot is defined by a top wall 291 and a peripheral wall 294 disposed about the top wall 291. The lid opening mechanism includes a displacement member 231, and the displacement member 231 penetrates the top wall 291. The displacement member 231 has an initial position and an open lid position, and the displacement member 231 moves from the initial position to the open lid position after the surface cleaning apparatus 10 is docked to the base station 20. Referring to fig. 1-3 and 10-12, when the surface cleaning apparatus 10 is docked to the base station 20, the displacement member 231 comes into contact with the button 171 of the locking structure 17, and at this time, the displacement member 231 of the door opening mechanism is moved from the initial position to the door opening position and is held at the door opening position by the pressure of the button 171, and at the same time, the button 171 is also pushed by the displacement member 231 to move inward. When the surface cleaning apparatus is docked, the locking structure 17 is now in the unlocked position and the cover 132 is also switched from the locked state to the openable state and remains in the openable state. At the same time, when the displacement member 231 is in the open lid position, a micro switch within the base station 20 is triggered, which in turn sends a signal to the controller indicating that the surface cleaning apparatus has been docked to the base station 20. The suction motor 21 may be controlled to operate to generate suction force. When the suction motor 21 is operated, the cover 132 may be pivoted by the suction force generated by the suction motor 21 to open the dust discharge port 131. After the surface cleaning device 10 is docked to the base station 20, the fan assembly 3, the dust cup assembly 1, the dust collection chamber 22 and the suction motor 21 are sequentially arranged from top to bottom along the gravity direction, so that the surface cleaning device can be effectively prevented from toppling over.

When the surface cleaning apparatus 10 (handheld vacuum cleaner) is docked to the base station 20, the controller (not shown in the figure) can directly control the operation of the suction motor 21 according to a docking signal (which can be sent by a micro switch, various sensors and other structures), that is, after the handheld vacuum cleaner is placed, the suction motor 21 automatically operates without manual control, and since the cover 132 is in an openable state, the cover 132 moves under the action of suction force to open the dust discharge port 131, and dirt in the dust collection chamber 13 is transferred to a dust cup or a dust bag in the dust collection chamber 22 through a suction airflow generated by the suction motor 21. When the suction motor 21 stops operating, the cover 132 substantially closes the dust discharge port 131 by the holding mechanism. It will be appreciated that when the surface cleaning apparatus 10 (hand-held cleaner) is docked to the base station 20, the controller can control whether the suction motor 21 is operating in accordance with user operation, and if the user needs to empty the dirt cup assembly 1, only the operation of the suction motor 21 need be controlled by a button.

However, since hair may be entangled with the first filter 7, even the suction force generated by the suction motor 21 cannot completely detach all of the entanglement from the first filter 7, and eventually requires the user to manually clean it. Therefore, the present invention adopts a new control method to solve this problem. Specifically, when the hand-held cleaner is docked to the base station 20, the suction motor 21 may be operated automatically or after receiving a control command from a user for a preset period of time to empty the dirt cup, and the first filter 7 is simultaneously driven to rotate for a first preset duration during the preset period of time during which the suction motor 21 is operated. The first preset time period may be equal to or less than a preset time period, and may be set according to specific conditions. It will be understood that the first filter 7 is only required to be rotated for a first preset time during a preset time period of operation of the suction motor 21, and that the control outside the preset time period can be adjusted at will, and is not limited herein. The advantage of using this control is that at the beginning of the operation of the suction motor 21, the first filter 7 starts to rotate under the influence of external forces, creating centrifugal forces, which cause the elongated debris and/or dust attached to the first filter 7 to shake, so that under the air flow created by the suction motor 21, the elongated debris and/or dust can be detached from the first filter 7 and transferred to the dust collecting chamber 22 of the base station 20. The first filter 7 may be rotated in a forward or reverse direction, depending on the driving structure, and is not limited thereto.

Referring to fig. 5-7, the first filter 7 includes a first end 72 proximate the air outlet and a second end 73 distal from the air outlet, the second end 73 being disposed in air. The diameter of the first end 72 is greater than the diameter of the second end 73. The round table or the conical structure is adopted, so that hair wound on the first filter 7 can be separated quickly, and the cleaning efficiency is effectively improved. The first filter 7 comprises a filter frame 71 and a filter screen 74 fixed on the filter frame, a guide rib 76 is arranged around the filter screen 74, the first filter 7 is mounted on the filter bracket 51 through a fixed shaft, and the second end 73 of the first filter 7 is mounted on one end of the fixed shaft 752 far away from the filter bracket 51 through a bearing 753. The fan rotates about the rotation axis P, and a proximal shaft end (an end close to the rotation axis P) of the fan 8 in the radial direction is suspended with respect to a fixed shaft 752, and the fixed shaft 752 is fixedly mounted to the filter holder 51 or the air outlet. When the fan 8 rotates, the fixed shaft 752 does not move, and even if hair is wound around the fixed shaft, the rotation of the fan is not affected.

Cleaning system 100 also includes a controller that controls the operation of suction motor 21, which may be mounted on base station 20, or may be mounted on surface cleaning apparatus 10, and which may be electrically and/or signally connected to base station 20 when surface cleaning apparatus 10 is docked thereto. Of course, the controller may comprise a first controller located on the base station 20 and a second controller located on the surface cleaning apparatus 10, both controllers being operable to control the base station 20 and the surface cleaning apparatus 10 respectively in response to respective signals.

On the basis of the above-described embodiment, several implementations of the first filter 7 being driven in rotation are described below:

fan drive

Referring to fig. 5-8, surface cleaning apparatus 10 further includes a fan 8 disposed at the air outlet, first filter 7 configured to rotate with fan 8, and fan 8 may be disposed within first filter 7 or may be disposed outside first filter 7. The fan 8 may also be integrally formed with the first filter 7. The fan 8 may be driven by the suction airflow generated by the fan assembly 3 within the surface cleaning apparatus 10 (see figure 5) and may also be driven by the airflow generated by the suction motor 21 (see figure 8). The fan comprises a plurality of fan blades, and the fan blades can be arranged inside the first filter and also can be arranged on the periphery of the first filter, namely the periphery of the filter screen. Furthermore, the fan blade can be integrally formed with the guide rib, namely the guide rib plays a role of the fan blade. The guide rib can drive the first filter to rotate under the action of the airflow.

When the suction motor 21 is used to drive the fan 8, since the dirt-collection chamber 13 is in communication with the suction duct of the surface cleaning apparatus 10 via the cyclonic separation chamber 12, when the suction motor 21 is operated, a substantial portion of the airflow will flow in sequence from the suction duct into the cyclonic separation chamber 12, the dirt-collection chamber 13 and then to the dirt-collection chamber 22 of the base station 20, and only a small portion of the airflow will flow through the fan 8, which will not substantially rotate the fan 8 and can be ignored. Therefore, a new structure is required to be designed, and referring to fig. 8, the surface cleaning apparatus 10 is provided with a communication hole 302 for communicating the cyclone chamber 12 with the outside, the communication hole 302 is configured such that during operation of the suction motor 21, the communication hole 302 communicates the outside with the communication hole 302, and the fan 8 is rotated by the air current generated by the suction motor 21. The communication hole is configured to be openable and closable. When the surface cleaning apparatus is used alone, the communication hole is in a closed state. To ensure the rotational speed of the first filter 7, it may be necessary to restrict the air intake passage of the surface cleaning apparatus 10 after the surface cleaning apparatus 10 is docked to the base station 20, where the air intake passage refers to the air duct upstream of the air inlet of the cyclonic separation chamber 12, either with the air inlet of the cyclonic separation chamber 12 being restricted or with the suction opening of the cleaning head being restricted. The limitation here may be that it is completely sealed or partially sealed, only the rotation speed of the first filter 7 needs to be guaranteed. When the air inlet channel is limited and the communication hole is opened, most of the air flow generated by the suction motor passes through the fan and can drive the fan to rotate.

Drive motor drive

Referring to fig. 9, the surface cleaning apparatus 10 comprises a drive motor 301, the drive motor 301 being for driving the first filter 7. The driving motor 301 is an independent driving structure and is independent of the fan assembly 3, the driving motor 301 is in transmission connection with the first filter 7 through a transmission structure, the driving motor 301 can be controlled by the controller, and after the controller receives a control instruction, the first filter 7 can be controlled to rotate for a first preset time according to the control instruction.

Fan assembly drive

The first filter 7 is drivingly connected to a fan assembly 3 within the surface cleaning apparatus 10, the fan assembly 3 being arranged to rotate the first filter 7 whilst generating the suction airflow. The fan assembly 3 is in transmission connection with the first filter 7 through a transmission mechanism to drive the first filter 7 to rotate. Because the fan in the fan assembly 3 rotates at a relatively high speed, the fan and the first filter 7 can be in transmission connection through a speed reducing device.

In one control, the first filter 7 is configured to start rotating and continue rotating for a first preset period of time after the suction motor 21 is operated for a second preset period of time. Assuming that the total operation time of the suction motor 21 is 10S, that is, the suction motor 21 is operated for a certain period of time (3S) first to transfer most of the dirt in the dust collecting chamber 13 and the cyclone chamber 12 into the dust collecting chamber 22, then the first filter 7 is driven to rotate (5S) while the suction motor continues to operate, and the hair and dust attached to the first filter 7 are separated from the first filter 7 by the centrifugal force and the suction force and are sucked into the dust collecting chamber. The first filter 7 stops rotating. The suction motor 21 is configured to continue to operate for a third preset period of time (2S) after the first filter 7 stops rotating. Of course, in other embodiments, the first filter 7 and the suction motor 21 may stop rotating at the same time. By adopting the control method, the problem that the hair is wound on the first filter and cannot be transferred to the base station can be effectively solved.

In another control process, the suction motor 21 and the fan assembly 3 may start to operate simultaneously. After the surface cleaning device 10 is docked to the base station 20, the operation of emptying the dirt cup assembly may be automatically performed after a preset time, and during the emptying operation, the suction motor 21 and the fan assembly 3 may be controlled by the controller to operate simultaneously, the suction motor 21 and the fan assembly 3 may be controlled to stop simultaneously, or both may not stop simultaneously. In other embodiments, the controller may control the suction motor 21 and the fan assembly 3 to operate simultaneously, may control both to stop simultaneously, or may control both to stop simultaneously after the surface cleaning apparatus 10 is docked to the base station 20 and after receiving a control command from the user. By adopting the control method, the problem that the hair is wound on the first filter and cannot be transferred to the base station can be effectively solved.

While embodiments of the invention have been described above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.

Claims

1. A cleaning system, comprising:

a base station for docking at least part of the surface cleaning apparatus, the base station defining a dirt collection chamber for receiving dirt diverted from an ash discharge port of the dirt collection chamber, the base station being provided with a suction motor for generating a suction airflow;

2. The cleaning system of claim 1,

the first filter is configured to begin rotating and continue rotating for the first preset period of time after the suction motor has been operating for a second preset period of time.

3. The cleaning system of claim 1 or 2,

the suction motor is configured to continue operating for a third preset period of time after the first filter stops rotating.

4. The cleaning system of claim 1,

the suction motor and the fan assembly begin operation simultaneously.

5. The cleaning system of claim 1,

a cover body is arranged at the dust outlet of the dust collecting chamber and comprises a locking state and an openable state, wherein the cover body is in the openable state after the surface cleaning equipment is butted to the base station.

6. The cleaning system of claim 5,

a cover opening mechanism is disposed on the base station and configured to switch the cover from the locked state to the openable state after the surface cleaning apparatus is docked to the base station.

7. The cleaning system of claim 6,

the base station comprises a receiving groove for receiving the cover body, and at least part of the cover opening mechanism is arranged in the receiving groove.

8. The cleaning system of claim 7,

the uncapping mechanism comprises a displacement member having an initial position and an uncapping position, wherein the displacement member moves from the initial position to the uncapping position after the surface cleaning device is docked to the base station.

9. The cleaning system of claim 8,

the receiving groove is defined by a top wall through which the displacement member penetrates and a peripheral wall provided around the top wall.

10. The cleaning system of claim 1,

after the surface cleaning equipment is butted to the base station, the fan assembly, the dust cup assembly, the dust collection cavity and the suction motor are sequentially arranged from top to bottom along the gravity direction.