Cleaning device

Abstract

The utility model provides a cleaning device. A shell is provided with an air inlet, an air outlet and an air supplementing opening. The self-cleaning valve is used for opening the exhaust channel from the air outlet of the motor to the air outlet and closing the self-cleaning channel from the air outlet of the motor to the filter, or closing the exhaust channel and opening the self-cleaning channel; the air supply valve is used for opening or closing an air supply channel from the air supply port to the air inlet of the motor; the baffle is used for opening or closing a filtering channel from the filter to the air inlet of the motor; the first driving mechanism is used for driving the self-cleaning valve to open the exhaust passage and close the self-cleaning passage in a first state and driving the self-cleaning valve to close the exhaust passage and open the self-cleaning passage in a second state; the second driving mechanism is used for driving the air supply valve to close the air supply channel and driving the baffle to open the filtering channel in the first state and driving the air supply valve to open the air supply channel and driving the baffle to close the filtering channel in the second state.

Description

Technical Field

[0001] This application relates to the field of vacuum cleaner technology, and more particularly to a cleaning device. Background Technology

[0002] In the field of vacuum cleaner technology, canister vacuum cleaners are typically used for household or industrial cleaning, characterized by their large capacity and ease of disassembly and cleaning. To improve cleaning efficiency and extend filter life, related technologies generally incorporate a functional module inside the vacuum cleaner that can automatically clean the filter. This module uses high-pressure or negative-pressure airflow generated by a fan to blow or vibrate the filter surface, removing dust particles accumulated on the filter media and thus maintaining the vacuum cleaner's continuous suction power.

[0003] In existing technology, vacuum cleaners typically have a flap in the filter channel connecting the filter and the fan inlet, supplemented by a torsion spring structure. In the non-working state, the torsion spring biases the flap in the closed position, closing the filter channel. In the dust collection working state, the airflow blows towards the flap, overcoming the force of the torsion spring, causing the flap to move to the open position, thereby opening the filter channel and ensuring unobstructed airflow. In the self-cleaning working state, the torsion spring is expected to resist the impact of the airflow from the self-cleaning air duct, keeping the filter channel closed to ensure self-cleaning efficiency.

[0004] However, in self-cleaning mode, due to the limitations of the torsion spring structure, the flap can still easily overcome the force of the torsion spring and at least partially open the filter channel under the impact of the airflow in the self-cleaning duct. This causes the airflow in the self-cleaning duct to be partially diverted from the filter channel, thereby reducing the self-cleaning efficiency. Summary of the Invention

[0005] To address the aforementioned technical problems, this application proposes a cleaning device to solve the problem of low self-cleaning efficiency.

[0006] To achieve the aforementioned objectives, one embodiment of this application provides a cleaning apparatus, comprising:

[0007] The housing has an air inlet, an air outlet, and a supplementary air inlet;

[0008] An electric motor is disposed within the housing. The motor has an air inlet and an air outlet for generating negative pressure to form an airflow channel.

[0009] A filter, disposed within the housing and located in the airflow channel, is used to filter contaminants in the airflow;

[0010] The cleaning device also includes:

[0011] A self-cleaning valve is used to open the exhaust passage and close the self-cleaning passage, or close the exhaust passage and open the self-cleaning passage, wherein the exhaust passage is a passage from the motor air outlet to the air outlet, and the self-cleaning passage is a passage from the motor air outlet to the filter;

[0012] The air inlet is connected to the air inlet of the motor.

[0013] An air supply valve is used to open or close the air supply channel, which is a channel from the air supply port to the motor air inlet;

[0014] A baffle is used to open or close a filter channel, wherein the filter channel is a channel from the filter to the motor air inlet;

[0015] A first driving mechanism is used to drive the self-cleaning valve to open the exhaust passage and close the self-cleaning passage in a first state, and to drive the self-cleaning valve to close the exhaust passage and open the self-cleaning passage in a second state.

[0016] The second driving mechanism is used to drive the air supply valve to close the air supply channel and drive the baffle to open the filter channel in the first state, and to drive the air supply valve to open the air supply channel and drive the baffle to close the filter channel in the second state.

[0017] As a further improvement of one embodiment of this application, the second driving mechanism includes a driving member, a transmission member, and an elastic member;

[0018] In the second state, the driving member drives the transmission member to act on the baffle, so that the baffle closes the filter channel and the elastic member undergoes compression deformation;

[0019] In the first state, the driving member drives the transmission member to move in a direction away from the baffle, and the elastic member drives the baffle to open the filter channel under the action of its own elastic restoring force.

[0020] As a further improvement of one embodiment of this application, the cleaning device further includes a rotating shaft disposed on the baffle, and the second driving mechanism drives the baffle to rotate around the rotating shaft to open or close the filter channel.

[0021] As a further improvement of one embodiment of this application, the filter channel has a filter outlet, the filter and the motor are connected through the filter outlet, the baffle includes a main body section, a connecting section and an action section arranged in sequence, the main body section is used to open or close the filter outlet, the rotating shaft is located at the end of the main body section away from the connecting section, the action section is located on the side of the main body section away from the filter outlet, and the elastic member abuts against the action section and is located on the side of the action section facing the filter outlet.

[0022] As a further improvement of one embodiment of this application, one end of the transmission member is connected to the drive member through the air replenishment valve, and the other end of the transmission member abuts against the side of the action section opposite to the filter outlet.

[0023] As a further improvement of one embodiment of this application, the connecting segment has a first surface facing the filter outlet, the first surface gradually moving away from the filter outlet from the main body segment toward the functional segment.

[0024] As a further improvement of one embodiment of this application, the driving element is an electromagnetic driver.

[0025] As a further improvement of one embodiment of this application, the second driving mechanism further includes a guide rod, which is connected to the driving member. The air supply valve is disposed on the guide rod, and the transmission member is connected to the guide rod. The driving member drives the guide rod to move so that the air supply valve opens or closes the air supply channel.

[0026] As a further improvement of one embodiment of this application, the cleaning device includes an air replenishment chamber, the air replenishment channel has an air replenishment control port, the air replenishment control port is at least partially in fluid communication with an air replenishment port disposed on the housing, the air replenishment control port corresponds one-to-one with the air replenishment valve and there are two of each, the air replenishment control port is connected to the motor air inlet through the inner cavity of the air replenishment chamber, the air replenishment chamber includes a first side wall and a second side wall disposed opposite to each other, the two air replenishment control ports are respectively disposed on the first side wall and the second side wall, the guide rod passes through the two air replenishment control ports, and the two air replenishment valves are disposed at intervals along the guide rod and are respectively used to open or close their respective corresponding air replenishment control ports.

[0027] As a further improvement of one embodiment of this application, the filter has two filter surfaces arranged opposite to each other, the filter surfaces being arranged along a direction perpendicular to the axis of the motor.

[0028] Compared with the prior art, this application has the following beneficial effects:

[0029] The cleaning device of this application drives the air supply valve and the baffle to move through the second driving mechanism, and the first driving mechanism drives the self-cleaning valve to control the opening and closing of the exhaust channel, thereby enabling the cleaning device to switch between a first state and a second state to perform vacuuming or self-cleaning as needed; moreover, it can effectively control the opening and closing of the baffle, the air supply valve, and the self-cleaning valve, solving the problem of incomplete closing or opening of the baffle due to relying solely on airflow and torsion spring mechanism, so that the airflow of the cleaning device can reach the maximum in the first state, thereby improving the vacuuming efficiency, and in the second state, the self-cleaning airflow can act more concentratedly on the self-cleaning of the filter, thereby improving the self-cleaning efficiency. Attached Figure Description

[0030] The accompanying drawings provided herein are intended to illustrate a further understanding of this application and form part of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0031] Figure 1 This is a three-dimensional structural diagram of a cleaning device according to an embodiment of this application;

[0032] Figure 2 for Figure 1 An explosion diagram;

[0033] Figure 3 This is a schematic longitudinal cross-sectional view of a cleaning device according to an embodiment of this application;

[0034] Figure 4 This is a longitudinal cross-sectional view of a cleaning device according to an embodiment of this application, illustrating a first state;

[0035] Figure 5 This is a longitudinal cross-sectional view of a cleaning device according to an embodiment of this application, illustrating a second state;

[0036] Figure 6 This is a cross-sectional structural diagram of a cleaning device according to an embodiment of this application, which illustrates a first state;

[0037] Figure 7 This is a cross-sectional structural diagram of a cleaning device according to an embodiment of this application, illustrating a second state;

[0038] Figure 8 This is a cross-sectional view of a cleaning device according to an embodiment of the present application, showing a first state.

[0039] Figure 9 This is a cross-sectional view of a cleaning device according to an embodiment of the present application, illustrating a second state.

[0040] Figure 10 This is a schematic diagram of the structure of the second drive mechanism and the baffle according to an embodiment of this application;

[0041] Figure 11 This is a cross-sectional view of a cleaning device according to an embodiment of the present application, showing the first state.

[0042] Figure 12 This is a cross-sectional view of a cleaning device according to an embodiment of the present application, illustrating a second state.

[0043] Figure 13 This is a longitudinal cross-sectional view of the first drive mechanism and filter according to an embodiment of this application, illustrating the first state;

[0044] Figure 14 This is a longitudinal cross-sectional view of the first drive mechanism and filter according to an embodiment of this application, illustrating the second state.

[0045] Figure label:

[0046] 100. Cleaning device; 1. Housing; 11. Air inlet; 12. Air outlet; 13. Air replenishment port; 14. Filter outlet; 2. Motor; 21. Motor air inlet; 22. Motor air outlet; 3. Filter; 31. Filter surface; 4. Self-cleaning valve; 5. Air replenishment valve; 6. Baffle; 61. Rotating shaft; 62. Main body section; 63. Connecting section; 631. First surface; 64. Acting section; 7. First drive mechanism; 71. Driver; 72. Push rod; 8. Second drive mechanism; 81. Drive component; 82. Transmission component; 83. Elastic component; 84. Guide rod; 9. Air replenishment chamber; 91. First side wall; 92. Second side wall; 93. Air replenishment control port; 10. Air guide component; 101. Air guide channel; 200. Dust bin. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0048] In the various figures of this application, for ease of illustration, certain dimensions of structures or parts are enlarged relative to other structures or parts; therefore, they are only used to illustrate the basic structure of the subject matter of this application.

[0049] It should be understood that, unless otherwise expressly specified and limited, in the description of this application, the terms "inner," "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0050] See Figure 1 and Figure 2 This embodiment provides a cleaning device 100, including a head assembly and a dust bin 200. The head assembly is mounted on top of the dust bin 200. The head assembly is used to provide a power structure, a filter section, and a control structure, etc. The dust bin 200 is mainly used to collect dust. The head assembly is detachably mounted on the dust bin 200.

[0051] See Figures 1 to 14 The cleaning device 100 includes a housing 1, a motor 2, and a filter 3. The housing 1 includes the outer shell of the head assembly and the dust bin 200. The housing 1 has an air inlet 11, an air outlet 12, and a replenishment air inlet 13.

[0052] The motor 2 is disposed within the housing 1. The motor 2 has a motor air inlet 21 and a motor air outlet 22, which are used to generate negative pressure to form an airflow channel. The airflow channel referred to here refers to the channel formed by the airflow along the entire path within the housing 1 under the action of the motor 2, including the channel inside the motor 2 and the channel outside the motor 2.

[0053] The filter 3 is disposed inside the housing 1 and located in the airflow channel, and is used to filter dirt in the airflow.

[0054] In this embodiment, the air inlet 11 is located in the dust bin 200, and the air outlet 12 and the air replenishment port 13 are located in the outer shell of the head assembly.

[0055] The cleaning device 100 also includes a self-cleaning valve 4, an air supply valve 5, and a baffle 6.

[0056] The self-cleaning valve 4 is used to open the exhaust channel and close the self-cleaning channel, or close the exhaust channel and open the self-cleaning channel, wherein the exhaust channel is a channel from the motor air outlet 22 to the air outlet 12, and the self-cleaning channel is a channel from the motor air outlet 22 of the motor 2 to the filter 3.

[0057] The air supply valve 5 is used to open or close the air supply channel, which is a channel from the air supply port 13 to the motor air inlet 21.

[0058] The baffle 6 is used to open or close the filter channel, wherein the filter channel is a channel from the filter 3 to the motor air inlet 21.

[0059] The cleaning device 100 has a first state and a second state and can switch between the two states. In the first state, the cleaning device 100 performs a vacuuming operation, and in the second state, the cleaning device 100 performs a filter self-cleaning operation.

[0060] See Figure 4 , 6 In the first state, the baffle 6 opens the filter channel, the air supply valve 5 closes the air supply channel, and the self-cleaning valve 4 opens the exhaust channel and closes the self-cleaning channel. Under the action of the motor 2, the airflow carrying dust enters the dust bin 200 through the air inlet 11, the dust falls into the dust bin 200, the airflow passes through the filter 3, then through the filter channel into the motor air inlet 21, and then exits the cleaning device 100 through the exhaust channel from the motor air outlet 22, thereby achieving the effect of dust collection.

[0061] See Figure 5 , 7 In the second state, the baffle 6 closes the filter channel, the air supply valve 5 opens the air supply channel, and the self-cleaning valve 4 opens the self-cleaning channel and closes the exhaust channel. Under the action of the motor 2, outside air enters the motor air inlet 21 from the air supply port 13 through the air supply channel, and then flows from the motor air outlet 22 through the self-cleaning channel to the filter 3. After self-cleaning the filter 3, it is discharged from the cleaning device 100 through the air inlet 11 on the dust bin 200.

[0062] The cleaning device 100 also includes a first drive mechanism 7 and a second drive mechanism 8.

[0063] See Figures 11 to 14 The first drive mechanism 7 is used to drive the self-cleaning valve 4 to open the exhaust passage and close the self-cleaning passage in a first state, and to drive the self-cleaning valve 4 to close the exhaust passage and open the self-cleaning passage in a second state.

[0064] See Figures 4 to 10The second driving mechanism 8 is used to drive the air supply valve 5 to close the air supply channel and drive the baffle 6 to open the filter channel in the first state, and to drive the air supply valve 5 to open the air supply channel and drive the baffle 6 to close the filter channel in the second state.

[0065] The second driving mechanism 8 drives the air supply valve 5 and the baffle 6 to move, and the first driving mechanism 7 drives the self-cleaning valve 4 to control the opening and closing of the exhaust channel, thereby enabling the cleaning device 100 to switch between a first state and a second state, so as to perform vacuuming or self-cleaning as needed; moreover, it can effectively control the opening and closing of the baffle 6, the air supply valve 5, and the self-cleaning valve 4, solving the problem that the baffle 6 is not completely closed or opened due to reliance on airflow and torsion spring mechanism alone. In the first state, the airflow of the cleaning device 100 can reach the maximum, thereby improving the vacuuming efficiency. In the second state, the self-cleaning airflow can act more concentratedly on the self-cleaning of the filter 3, thereby improving the self-cleaning efficiency.

[0066] See Figure 10 The second drive mechanism 8 includes a drive member 81, a transmission member 82, and an elastic member 83.

[0067] See Figure 7 In the second state, the driving member 81 drives the transmission member 82 to act on the baffle 6, so that the baffle 6 closes the filter channel and the elastic member 83 undergoes compression deformation.

[0068] See Figure 6 In the first state, the driving member 81 drives the transmission member 82 to move in a direction away from the baffle 6, and the elastic member 83 drives the baffle 6 to open the filter channel under the action of its own elastic restoring force.

[0069] The drive member 81 and the transmission member 82 can improve the control accuracy of the baffle 6, so as to control the opening or closing state of the baffle 6. The elastic member 83 can provide the power to open the filter channel of the baffle 6 when the transmission member 82 is away from the baffle 6, and the structure is simple.

[0070] Specifically, in the first state, when the baffle 6 opens the filter channel, the elastic element 83 still has a certain compressive deformation, so that the elastic element 83 still provides a certain force to the baffle 6, thereby keeping the baffle 6 open under the combined action of the transmission element 82 and the elastic element 83. It should be noted that in other implementations, in the first state, when the baffle 6 opens the filter channel, the elastic element 83 has no compressive deformation, and the baffle 6 and the transmission element 82 are only in contact without interaction force, or the baffle 6 and the transmission element 82 are not in contact but have a gap.

[0071] The cleaning device 100 also includes a rotating shaft 61 disposed on the baffle 6. The second driving mechanism 8 drives the baffle 6 to rotate around the rotating shaft 61 to open or close the filter channel. In this way, the baffle 6 can be opened or closed by simply controlling the movement of the side of the baffle 6 away from the rotating shaft 61, making the operation simple.

[0072] The filter channel has a filter outlet 14, and the filter 3 and the motor 2 are connected through the filter outlet 14.

[0073] Specifically, the rotating shaft 61 is fixed to the structure of the machine head assembly, specifically located on one side of the filter outlet 14 along the extension direction. One end of the baffle 6 is pivotally connected to the rotating shaft 61, while the elastic member 83 is located on the other side of the filter outlet 14 along the extension direction. That is, the rotating shaft 61 and the elastic member 83 are respectively located on opposite sides of the filter outlet 14 along the extension direction, and one end of the elastic member 83 is connected to the structure of the machine head assembly corresponding to the filter outlet 14, while the other end of the elastic member 83 is a free end.

[0074] In the second state, the drive member 81 can overcome the elastic force of the elastic member 83 through the transmission member 82 and drive the baffle 6 to rotate around the rotating shaft 61 to close the filter channel; in the first state, the elastic restoring force of the elastic member 83 drives the baffle 6 to open around the rotating shaft 61 until the baffle 6 is in the position of opening the filter channel, so as to form a stable dust suction airflow channel.

[0075] In this embodiment, the elastic element 83 is configured as a spring; in other embodiments, the elastic element 83 may also be configured as a sheet, a torsion spring, or a shape memory structure, etc.

[0076] See Figure 10The baffle 6 includes a main body section 62, a connecting section 63, and an action section 64 arranged in sequence. The main body section 62 is used to open or close the filter outlet 14. The rotating shaft 61 is located at the end of the main body section 62 away from the connecting section 63. The action section 64 is located on the side of the main body section 62 away from the filter outlet 14. The elastic member 83 abuts against the action section 64 and is located on the side of the action section 64 facing the filter outlet 14.

[0077] The segmented structure of the baffle 6 provides sufficient space for the installation and movement of the elastic element 83, allowing for a reasonable arrangement of the second drive mechanism 8 within a limited space. It also ensures that the baffle 6 fits the filter outlet 14 more closely when closing the filter outlet 14, thus improving the sealing performance.

[0078] One end of the transmission component 82 is connected to the drive component 81 via the air replenishment valve 5, and the other end of the transmission component 82 abuts against the side of the action section 64 opposite to the filter outlet 14. This allows for synchronous movement and linkage control of the baffle 6 and the air replenishment valve 5, enabling the drive component 81 to simultaneously drive both the baffle 6 and the air replenishment valve 5. Furthermore, it simplifies the connection relationships between components and improves the overall operational reliability and sealing of the second drive mechanism 8.

[0079] The connecting segment 63 has a first surface 631 facing the filter outlet 14, which gradually moves away from the filter outlet 14 from the main body segment 62 toward the actuating segment 64. This allows the actuating segment 64 to be positioned a distance away from the filter outlet 14 relative to the main body segment 62, providing sufficient space for the installation and movement of the elastic element 83, and preventing mechanical interference between the connecting segment 63 and the motor 2.

[0080] Specifically, in this embodiment, the driving component 81 is an electromagnetic actuator. Thus, compared with the airflow-driven flap opening, the electromagnetic drive has the advantages of reliable operation and rapid switching. It can not only effectively reduce the diversion of the self-cleaning airflow in the second state, but also enable the driven components of the cleaning device 100 to react quickly and timely when switching between the first and second states, thereby improving the self-cleaning efficiency and dust collection efficiency in practical applications.

[0081] The second drive mechanism 8 also includes a guide rod 84, which is connected to the drive member 81. The air supply valve 5 is located on the guide rod 84, and the transmission member 82 is connected to the guide rod 84. The drive member 81 drives the guide rod 84 to move, causing the air supply valve 5 to open or close the air supply channel. Thus, by driving the guide rod 84 with the drive member 81, the air supply valve 5 and the baffle 6 can be moved simultaneously. This linkage design allows the drive member 81 to drive the guide rod 84 to move when switching to the first state and activating the vacuuming mode, thereby closing the air supply valve 5 and opening the filter channel, and simultaneously opening the filter channel with the baffle 6. When switching to the second state and activating the self-cleaning mode, the drive member 81 drives the guide rod 84 to move, thereby opening the air supply valve 5 and closing the filter channel with the baffle 6, quickly achieving mode switching and airflow path opening and closing.

[0082] See Figures 4 to 5 The cleaning device 100 also includes an air replenishment chamber 9, which is located inside the housing 1, and the inner cavity of the air replenishment chamber 9 is connected to the motor air inlet 21.

[0083] The air replenishment channel has an air replenishment control port 93, which is located in the air replenishment chamber 9 and at a position corresponding to the air replenishment port 13, thereby shortening the airflow path between the air replenishment port 13 and the air replenishment control port 93 to improve air replenishment efficiency. The air replenishment control port 93 is at least partially in fluid communication with the air replenishment port 13 located in the housing 1. The air replenishment control port 93 corresponds one-to-one with the air replenishment valve 5, and there are two of each valve. The air replenishment control port 93 is connected to the motor air inlet 21 through the inner cavity of the air replenishment chamber 9. The air replenishment chamber 9 includes a first side wall 91 and a second side wall 92 arranged opposite to each other. The two air replenishment control ports 93 are respectively located on the first side wall 91 and the second side wall 92. The guide rod 84 passes through the two air replenishment control ports 93. The two air replenishment valves 5 are spaced apart along the guide rod 84 and are used to open or close their respective corresponding air replenishment control ports 93.

[0084] Thus, in the first state, the driving member 81 drives the guide rod 84 to move, thereby causing the air supply valve 5 to close the air supply control port 93, and thus close the air supply channel; in the second state, the driving member 81 drives the guide rod 84 to move, thereby causing the air supply valve 5 to open the air supply control port 93, and thus open the air supply channel. Under the action of the motor 2, outside air can enter the air supply control port 93 from the air supply port 13 and enter the motor air inlet 21 through the air supply channel, thereby realizing the self-cleaning of the cleaning device 100.

[0085] In this embodiment, the air replenishment valve 5, which is relatively close to the driving member 81, is located inside the air replenishment chamber 9, and the transmission member 82 is connected to the air replenishment valve 5. Thus, the transmission member 82 and the baffle 6 can be arranged using the space inside the air replenishment chamber 9. The other air replenishment valve 5, which is relatively far from the driving member 81, is located outside the air replenishment chamber 9. In this way, when the driving member 81 drives the guide rod 84 to move, it can drive the two air replenishment valves 5 to move synchronously, and the two air replenishment valves 5 can open or close their respective air replenishment control ports 93 at the same time.

[0086] In this embodiment, see Figure 3 The filter 3 and the motor 2 are arranged side by side with a gap between them, see reference. Figures 13 to 14 The filter 3 has two opposing filter surfaces 31. Airflow enters the filter 3 through one of the filter surfaces 31 and exits the filter 3 through the other filter surface 31. The filter surfaces 31 are arranged along a direction perpendicular to the axis of the motor 2.

[0087] The baffle 6 is located between the filter 3 and the motor 2, which facilitates the airflow passing through the filter 3 to be delivered into the motor 2 as quickly as possible in the first state.

[0088] See Figures 13 to 14 The first drive mechanism 7 is located above the filter 3. The first drive mechanism 7 includes a driver 71 and a push rod 72. The self-cleaning valve 4 is disposed on the push rod 72. The driver 71 drives the push rod 72 to move, thereby driving the self-cleaning valve 4 to move, so as to open the exhaust channel and close the self-cleaning channel, or close the exhaust channel and open the self-cleaning channel.

[0089] Thus, in the first state, under the action of the motor 2, the airflow carrying dust enters the dust bin 200 through the air inlet 11, and the dust falls into the dust bin 200. The airflow passes through the filter surface 31 at the bottom of the filter 3, and then exits the filter 3 from the filter surface 31 at the top of the filter 3. After that, it enters the motor air inlet 21 through the filter channel, and then exits the cleaning device 100 from the motor air outlet 22 through the exhaust channel and out of the air outlet 12, thereby achieving the effect of dust suction.

[0090] In the second state, under the action of the motor 2, outside air enters the air supply channel inside the housing 1 from the air supply port 13, enters the motor air inlet 21 after passing through the air supply control port 93, and then flows from the motor air outlet 22 through the self-cleaning channel to the filter surface 31 on the upper part of the filter 3, passes through the filter 3, and then exits the filter 3 from the filter surface 31 on the lower part of the filter 3 to achieve self-cleaning of the filter 3. After that, the airflow exits the cleaning device 100 through the air inlet 11 on the dust bin 200.

[0091] In this embodiment, the driver 71 is an electromagnetic driver.

[0092] In order to ensure that the airflow from the self-cleaning duct is evenly and directly blown toward the filter 3 to improve the self-cleaning effect, an air guide 10 is provided in the self-cleaning duct. The air guide 10 has multiple air guide channels 101, and the air guide channels 101 are perpendicular to the filter surface 31.

[0093] In summary, the cleaning device 100 provided in this application drives the air supply valve 5 and the baffle 6 to move via the second driving mechanism 8, and the first driving mechanism 7 drives the self-cleaning valve 4 to control the opening and closing of the exhaust channel, thereby enabling the cleaning device 100 to switch between a first state and a second state for vacuuming or self-cleaning as needed. Furthermore, it effectively controls the opening and closing of the baffle 6, the air supply valve 5, and the self-cleaning valve 4, solving the problem of incomplete closure or opening of the baffle 6 due to reliance solely on airflow and the torsion spring mechanism. This allows the airflow of the cleaning device 100 to reach its maximum in the first state, thereby improving vacuuming efficiency. In the second state, the self-cleaning airflow can act more concentratedly on the self-cleaning of the filter 3, thereby improving self-cleaning efficiency.

[0094] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0095] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this application, and these all fall within the protection scope of this application.

Claims

1. A cleaning device, comprising: a housing having an air inlet, an air outlet, and a supplementary air inlet; a motor arranged in the housing, the motor having a motor air inlet and a motor air outlet, and configured to generate a negative pressure to form an air flow channel; a filter arranged in the housing and located in the air flow channel, and configured to filter dirt in the air flow; characterized in that the cleaning device further comprises: a self-cleaning valve configured to open an exhaust channel and close a self-cleaning channel, or close the exhaust channel and open the self-cleaning channel, wherein the exhaust channel is a channel from the motor air outlet to the air outlet, and the self-cleaning channel is a channel from the motor air outlet to the filter; a supplementary air valve configured to open or close a supplementary air channel, wherein the supplementary air channel is a channel from the supplementary air inlet to the motor air inlet; a baffle configured to open or close a filtering channel, wherein the filtering channel is a channel from the filter to the motor air inlet; a first driving mechanism configured to drive the self-cleaning valve to open the exhaust channel and close the self-cleaning channel in a first state, and drive the self-cleaning valve to close the exhaust channel and open the self-cleaning channel in a second state; a second driving mechanism configured to drive the supplementary air valve to close the supplementary air channel and drive the baffle to open the filtering channel in the first state, and drive the supplementary air valve to open the supplementary air channel and drive the baffle to close the filtering channel in the second state.

2. The cleaning device of claim 1, wherein, The second driving mechanism comprises a driving member, a transmission member, and an elastic member; in the second state, the driving member drives the transmission member to act on the baffle to make the baffle close the filtering channel and the elastic member generate compression deformation; in the first state, the driving member drives the transmission member to move in a direction away from the baffle, and the elastic member drives the baffle to open the filtering channel under the action of its elastic restoring force.

3. The cleaning device of claim 2, wherein, The cleaning device further comprises a rotating shaft arranged on the baffle, and the second driving mechanism drives the baffle to rotate around the rotating shaft to open or close the filtering channel.

4. The cleaning device of claim 3, wherein, The filtering channel has a filtering outlet, the filter and the motor communicate through the filtering outlet, the baffle comprises a main body segment, a connecting segment, and an acting segment arranged in sequence, the main body segment is configured to open or close the filtering outlet, the rotating shaft is located at one end of the main body segment away from the connecting segment, the acting segment is located on a side of the main body segment away from the filtering outlet, and the elastic member abuts against the acting segment and is located on a side of the acting segment facing the filtering outlet.

5. The cleaning device of claim 4, wherein, One end of the transmission member is connected with the driving member through the supplementary air valve, and the other end of the transmission member abuts against a side of the acting segment away from the filtering outlet.

6. The cleaning device of claim 4, wherein, The connecting segment has a first surface facing the filtering outlet, and the first surface gradually moves away from the filtering outlet from the main body segment to the acting segment.

7. The cleaning device of claim 2, wherein, The driving member is an electromagnetic driver.

8. The cleaning device of claim 2, wherein, The second driving mechanism further comprises a guide rod connected with the driving member, the air supplement valve is arranged on the guide rod, and the transmission member is connected with the guide rod.

9. The cleaning device of claim 8, wherein, The cleaning device comprises an air supplement chamber, the air supplement passage has air supplement control ports which are at least partially in fluid communication with air supplement ports arranged on the shell, the air supplement control ports correspond to the air supplement valves one by one and are each provided with two, the air supplement control ports are communicated with the motor air inlet through the inner cavity of the air supplement chamber, the air supplement chamber comprises oppositely arranged first and second side walls, the two air supplement control ports are arranged on the first and second side walls respectively, the guide rod passes through the two air supplement control ports, and the two air supplement valves are arranged along the guide rod and are used for opening or closing the corresponding air supplement control ports respectively.

10. The cleaning device of claim 1, wherein, The filter has two oppositely arranged filter surfaces, and the filter surfaces are arranged along the direction perpendicular to the axis of the motor.

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