An air purifier

Abstract

The application discloses an air purifier and belongs to the technical field of air purifiers. The air purifier comprises a base, a shell, a purification mechanism and a self-cleaning mechanism. The shell is fixedly connected to the top of the base, the top of the shell is fixed with an upper seat, the bottom of the shell is fixed with a cavity dividing plate, and the cavity dividing plate divides the bottom of the shell into a driving cavity and an adsorption cavity which are independent of each other. The purification mechanism is arranged inside the shell and comprises at least one large-particle dust separating net. The self-cleaning mechanism is used for cleaning the outer wall of the large-particle dust separating net. The air purifier is provided with a dust suction ring which is sleeved outside the large-particle dust separating net. The dust suction ring is matched with a lifting driving structure to realize synchronous lifting along the axial direction of the filter screen. Negative pressure is generated through the dust suction port which is inclined to the filter screen, dust attached to the surface of the filter screen is automatically removed, manual dismounting and cleaning are not needed, the maintenance frequency is significantly reduced, the service life of the filter screen is prolonged, the annular dust suction structure can realize 360-degree dead angle-free cleaning of the filter screen, and the cleaning effect is stable and reliable.

Description

Technical Field

[0001] This invention belongs to the field of air purifier technology, specifically an air purifier. Background Technology

[0002] With social development, air pollution has become a major factor affecting people's health. In order to reduce the harm caused by air pollution to human life, people have developed various types of air purifiers. Air purifiers are small household appliances used to purify indoor air, mainly to solve indoor air pollution problems caused by decoration or other reasons.

[0003] However, existing air purifiers still have the following technical problems in actual use:

[0004] 1. Most existing air purifiers rely solely on external power grids for power, resulting in high standby and operating energy consumption. They lack effective auxiliary power supply methods, and solar energy resources are not fully utilized in environments with sufficient sunlight, causing the equipment to still consume a large amount of mains electricity during long-term operation.

[0005] 2. The large-particle dust filter of existing air purifiers is prone to accumulating dust during use, and needs to be manually disassembled, cleaned or replaced regularly. Otherwise, it will lead to obstructed air intake and reduced purification efficiency. However, users often find it difficult to accurately grasp the cleaning time, and the disassembly and cleaning process is also cumbersome, affecting the user experience. At the same time, although some devices have a cleaning reminder function, they lack an automatic cleaning structure, which cannot fundamentally reduce the frequency of manual maintenance.

[0006] 3. Many existing air purifiers only use single-layer or double-layer filtration structures, which are difficult to simultaneously and efficiently intercept large particles, fine particles (such as PM2.5) and gaseous pollutants (such as formaldehyde, odors, etc.). At the same time, they lack effective sterilization methods and have limited ability to remove bacteria and viruses in the air. In addition, the airflow channel design is not reasonable enough, with a single air inlet and outlet direction or insufficient circulation area, which leads to limited purification efficiency and makes it difficult to meet the increasingly higher requirements for indoor air quality. Summary of the Invention

[0007] The purpose of this invention is to achieve synchronous lifting and lowering along the filter's axial direction by using a suction ring fitted around the outside of a large-particle dust filter, in conjunction with a lifting drive structure. Negative pressure is generated by the suction port tilted towards the filter, automatically removing dust adhering to the filter surface without manual disassembly and cleaning, significantly reducing maintenance frequency and extending filter lifespan. Simultaneously, the annular suction structure enables 360° cleaning of the filter without dead angles, providing stable and reliable cleaning results. Solar energy is converted into electrical energy by a solar panel on the top of the unit, and stored in a battery compartment within the base. This energy can directly power the equipment or provide low-power operation in the absence of sunlight / at night. The device utilizes a self-powered system, significantly reducing reliance on mains power, lowering long-term energy consumption, and reducing carbon emissions through renewable energy, aligning with energy conservation and environmental protection principles. It employs a three-stage filtration structure consisting of a large-particle dust filter, a small-particle filter, and an activated carbon adsorption layer, nested from the outside in. Combined with a central ultraviolet lamp for sterilization and disinfection, it efficiently removes various pollutants from the air, including large particulate dust, PM2.5, formaldehyde odors, bacteria, and viruses. Furthermore, the side-inlet and top-outlet airflow channels, with air intake through the side wall vents and exhaust through the top vents, work in conjunction with a flow-controlled motor and fan blades to create a stable airflow, significantly improving purification efficiency.

[0008] The technical solution adopted in this invention is as follows: an air purifier, comprising a base, a shell, a purification mechanism, and a self-cleaning mechanism;

[0009] The outer shell is fixedly connected to the top of the base, and an upper seat is fixed to the top of the outer shell. A cavity plate is fixed to the bottom of the outer shell, and the cavity plate divides the bottom of the outer shell into an independent driving cavity and an adsorption cavity.

[0010] The purification mechanism is located inside the outer casing and includes at least one large-particle dust filter.

[0011] The self-cleaning mechanism is used to clean the outer wall of the large particle dust filter, and includes a lifting component, an adsorption component, and an annular dust suction ring. The dust suction ring is sleeved on the outside of the large particle dust filter, and the inner wall of the dust suction ring has a suction port that is inclined towards the large particle dust filter. The lifting component is used to drive the dust suction ring to move up and down along the axial direction of the large particle dust filter. The adsorption component is connected to the dust suction ring to provide a suction negative pressure.

[0012] The upper seat has a solar panel fixed at the top center, and the base has an energy storage battery compartment. The solar panel is electrically connected to the energy storage battery compartment to convert solar energy into electrical energy and store it in the energy storage battery compartment. A limit ring is fixedly connected to the bottom of the upper seat, and a sealing plate is installed inside the limit ring.

[0013] The solar panel is electrically connected to the energy storage battery compartment via a charge / discharge management module.

[0014] The purification mechanism further includes a small particle filter and an activated carbon adsorption layer nested inside the large particle dust-proof mesh from the outside to the inside. An ultraviolet lamp is also provided at the center of the outer shell, and a control module is installed at the bottom of the ultraviolet lamp. The control module is installed inside the adsorption chamber.

[0015] The upper seat is equipped with a flow control mechanism, which includes a flow control motor and a fan blade. The side wall of the outer shell has multiple flow ports that communicate with the purification mechanism, and the upper seat has an air outlet to form a side-in and top-out purified air flow.

[0016] The lifting component includes:

[0017] The control components are located inside the drive cavity;

[0018] The transmission assembly is provided in multiple sets, all of which are located in the drive cavity and are connected to the control assembly.

[0019] The moving component is provided in multiple sets, each set of the moving component is provided on each set of transmission components, and the multiple sets of moving components are connected to the dust suction ring.

[0020] The control components include a drive gear and a lifting motor. The lifting motor is fixedly connected to the center of the drive cavity, and the drive gear is fixedly connected to the output end of the lifting motor. Each transmission component includes a driven gear and a rotating shaft. The rotating shaft is rotatably connected to the drive cavity, and the driven gear is fixedly connected to the rotating shaft and meshes with the drive gear. Each moving component includes a lifting screw and a connecting rod. The lifting screw is fixedly connected to the rotating shaft, and the connecting rod is threadedly connected to the lifting screw and fixedly connected to the dust collection ring.

[0021] The adsorption component includes a vacuum pump, a dust collection ring, and telescopic tubes. The vacuum pump is fixedly connected to the adsorption chamber, the dust collection ring is installed in the adsorption chamber and connected to the vacuum pump, and multiple telescopic tubes are provided. One end of each telescopic tube is connected to the dust collection ring, and the other end of each telescopic tube is connected to the vacuum pump.

[0022] The large-particle dustproof mesh is movably inserted into the outer shell, and its surface is coated with an antibacterial coating.

[0023] The outer casing adopts an overall sealed design.

[0024] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0025] (1) The present invention uses a suction ring fitted on the outside of the large particle dust filter, combined with a lifting drive structure to achieve synchronous lifting along the filter axis. By tilting the suction port towards the filter to generate negative pressure, the dust attached to the filter surface is automatically removed. No manual disassembly and cleaning is required, which significantly reduces the maintenance frequency and extends the service life of the filter. At the same time, the ring suction structure can achieve 360° cleaning of the filter without dead angles, and the cleaning effect is stable and reliable.

[0026] (2) The present invention converts solar energy into electrical energy through the solar panel on the top of the seat, and stores electrical energy in conjunction with the energy storage battery compartment in the base. It can directly power the equipment or power the equipment for low-power operation in the absence of light / night, greatly reducing the dependence on mains power, reducing the long-term energy consumption of the equipment, and using renewable energy to reduce carbon emissions, which is in line with the concept of energy conservation and environmental protection.

[0027] (3) The present invention forms a three-stage filtration structure by nesting large particle dust screen, small particle filter screen and activated carbon adsorption layer from the outside to the inside. Combined with the ultraviolet lamp in the center, it can achieve sterilization and disinfection. It can simultaneously and efficiently remove large particulate dust, PM2.5, formaldehyde odor, bacteria and viruses and other pollutants in the air. At the same time, the side-in and top-out airflow channel, which enters through the flow port on the side wall of the outer shell and exits through the air outlet on the top of the upper seat, combined with the flow control motor and fan blades, forms a stable airflow, which greatly improves the purification efficiency.

[0028] (4) Through the synergy of the self-cleaning mechanism and the three-stage filtration, the self-cleaning mechanism regularly removes the dust attached to the surface of the large particle dust filter, maintaining its low resistance state. This not only avoids manual disassembly and cleaning, but also significantly reduces the load on the small particle filter and the activated carbon adsorption layer, extending the service life of the downstream filter. At the same time, the unobstructed large particle filter reduces the air intake resistance and fan power consumption, further enhancing the low energy consumption advantage.

[0029] (5) The present invention uses solar power supply and self-cleaning mechanism to cooperate. The electrical energy converted by the solar panel is stored in the energy storage battery compartment, which can provide an independent power supply for the lifting motor and vacuum pump of the self-cleaning mechanism. Even if the equipment is in an outdoor environment without mains power or in a low power standby mode at night, the self-cleaning mechanism can still run automatically according to the preset cycle to ensure that the filter screen is unobstructed for a long time, thereby achieving "self-sustaining" low maintenance operation.

[0030] (6) In this invention, through the coordination of the self-cleaning mechanism and the airflow channel, the dust sucked by the dust ring through the negative pressure during the operation of the self-cleaning mechanism is collected independently by the telescopic tube and the dust collection ring, and is completely isolated from the main purification airflow channel (side in and top out) to avoid secondary pollution. At the same time, the side in and top out airflow makes the dirty air flow upward from the bottom of the shell through the filter screen, and large particles naturally settle in the low wind speed area outside the filter screen, which makes it easy for the dust ring to clean efficiently from the outside.

[0031] (6) This invention improves the single-pass purification efficiency by combining three-stage filtration with solar power supply. The fan running time required to achieve the target cleanliness is shortened, the power consumption of the whole machine is reduced, and the solar power supply system can more easily meet the all-weather operation requirements of the equipment, reduce the energy storage battery capacity requirements, and achieve overall low energy consumption. Attached Figure Description

[0032] Figure 1 This is a perspective view of the present invention;

[0033] Figure 2 This is an exploded cross-sectional view of the present invention;

[0034] Figure 3 This is a partial cross-sectional view of the present invention;

[0035] Figure 4 This is an exploded cross-sectional view of the self-cleaning mechanism of the present invention;

[0036] Figure 5 This is a partial cross-sectional view of the self-cleaning mechanism of the present invention;

[0037] Figure 6 This is a partial cross-sectional view of the purification mechanism of the present invention;

[0038] Figure 7 This is a partial cross-sectional view of the flow control mechanism of the present invention;

[0039] Figure 8 For the present invention Figure 3 A magnified view of A in the middle.

[0040] The diagram shows the following components: 1. Base; 2. Drive gear; 3. Lifting motor; 4. Drive chamber; 5. Adsorption chamber; 6. Telescopic tube; 7. Dust pump; 8. Driven gear; 9. Rotating shaft; 10. Flow port; 11. Large particle dust filter; 12. Small particle filter; 13. Activated carbon adsorption layer; 14. Ultraviolet lamp; 15. Sealing plate; 16. Air outlet; 17. Solar panel; 18. Flow control motor; 19. Fan blade; 20. Upper seat; 21. Limiting ring; 22. Control module; 23. Chamber plate; 24. Dust collection ring; 25. Dust suction ring; 26. Outer shell; 27. Connecting rod; 28. Dust suction port; 29. ​​Lifting screw. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] Example 1, refer to Figure 1-8An air purifier, characterized in that it includes a base 1, a housing 26, a purification mechanism, and a self-cleaning mechanism;

[0043] The outer shell 26 is fixedly connected to the top of the base 1, and the upper seat 20 is fixed to the top of the outer shell 26. The bottom of the outer shell 26 is fixed with a cavity plate 23, which divides the bottom of the outer shell 26 into an independent driving cavity 4 and an adsorption cavity 5.

[0044] The purification mechanism is located inside the outer casing 26 and includes at least one large particle dust filter 11;

[0045] The self-cleaning mechanism is used to clean the outer wall of the large particle dust filter 11. It includes a lifting component, an adsorption component, and an annular suction ring 25. The suction ring 25 is fitted on the outer side of the large particle dust filter 11. The inner wall of the suction ring 25 has a suction port 28 that is inclined towards the large particle dust filter 11. The lifting component is used to drive the suction ring 25 to move up and down along the axial direction of the large particle dust filter 11. The adsorption component is connected to the suction ring 25 to provide suction negative pressure.

[0046] In this embodiment: the base 1 supports the weight of the entire purifier. Anti-slip pads or vibration damping structures can be installed at the bottom as needed to ensure stable placement of the device. An internal power interface or battery compartment can be reserved for energy storage or connection to an external power source. The outer shell 26 is fixedly connected to the top of the base 1, serving as the main support structure of the purifier. The outer shell 26 is entirely sealed to prevent unfiltered air leakage from the sides. The purification mechanism is located inside the outer shell 26, used for multi-layer filtration and sterilization of the incoming air to ensure clean exhaust air. A self-cleaning mechanism is used to periodically clean dust adhering to the surface of the purification mechanism, extending the service life of the filter components and reducing the frequency of manual maintenance. A lifting component is located inside the outer shell 26, used to drive the suction ring 25 to move up and down, thus controlling the movement of the purifier. The self-cleaning mechanism is designed for cleaning at different heights. The adsorption component is located inside the outer shell 26 and connected to the suction ring 25 to generate negative pressure. The suction ring 25 sucks in and collects dust from the surface of the purification mechanism. The suction ring 25 is located on the lifting component and has a ring structure, surrounding the outside of the purification mechanism for uniform dust suction. The suction port 28 is inclined and has a certain distance from the purification mechanism to prevent dust from being blocked outside the suction ring 25 during descent. The partition plate 23 divides the bottom of the inner shell 26 into an independent drive chamber 4 and an adsorption chamber 5. The drive chamber 4 is used to accommodate the drive element in the lifting component, and the adsorption chamber 5 is used to accommodate the suction component, thereby physically isolating dust and preventing dust flying during the suction process from entering the drive mechanism and causing malfunctions, thus improving the long-term reliability of the self-cleaning mechanism.

[0047] Specifically: A solar panel 17 is fixed at the top center of the upper seat 20, and an energy storage battery compartment is provided inside the base 1. The solar panel 17 is electrically connected to the energy storage battery compartment to convert solar energy into electrical energy and store it in the energy storage battery compartment. A limit ring 21 is fixedly connected to the bottom of the upper seat 20, and a sealing plate 15 is installed inside the limit ring 21.

[0048] In this embodiment: Solar panel 17 is used to convert solar energy into electrical energy. Solar panel 17 is a monocrystalline silicon photovoltaic panel with a power of 20W. Solar panel 17 works in conjunction with the internal battery compartment to reduce standby power consumption. The energy storage battery compartment uses a 12V / 10Ah lithium iron phosphate battery and is located inside the base 1. Solar panel 17 is electrically connected to the energy storage battery compartment through a charge and discharge management module. The charge and discharge management module is a mature existing technology that can realize solar charging, overcharge and over-discharge protection, and automatic switching between mains power and battery power. Limiting ring 21 and sealing plate 15 are used to fix and limit the purification mechanism to prevent it from shifting or loosening during use. At the same time, it ensures that air must be discharged through the purification mechanism.

[0049] Specifically: Solar panel 17 is electrically connected to the energy storage battery compartment via a charge / discharge management module.

[0050] Specifically, the purification mechanism also includes a small particle filter 12 and an activated carbon adsorption layer 13 nested inside the large particle dust-proof mesh 11 from the outside to the inside. An ultraviolet lamp 14 is also provided in the center of the outer shell 26. A control module 22 is installed at the bottom of the ultraviolet lamp 14 and is installed in the adsorption chamber 5.

[0051] In this embodiment: the large-particle dust filter 11 intercepts large particles such as dust, hair, and pollen, playing a primary filtration role. The large-particle dust filter 11 is movably inserted into the outer casing 26 to ensure stability. The large-particle dust filter 11 is washable and, combined with an antibacterial coating (such as silver ions or photocatalyst), improves the filter's reusability and antibacterial effect. The small-particle filter 12 intercepts fine particles such as PM2.5, smoke, and bacteria, improving filtration accuracy. The activated carbon adsorption layer 13 adsorbs gaseous pollutants such as formaldehyde, odors, and volatile organic compounds, improving air quality. The ultraviolet lamp 14 is used to sterilize the filtered air with ultraviolet light, killing bacteria and viruses and improving purification effect. The control module 22 controls the use of the ultraviolet lamp 14. Its internal structure is an application of existing technology. The control module 22 not only connects to the ultraviolet lamp 14 but also to the lifting component and the dust collection component, and is used to initiate self-cleaning at regular intervals or based on pressure difference signals.

[0052] Specifically: the upper seat 20 is equipped with a flow control mechanism, which includes a flow control motor 18 and a fan blade 19. The side wall of the outer shell 26 is provided with multiple flow ports 10 that communicate with the purification mechanism. The upper seat 20 is provided with an air outlet 16, forming a side-in and top-out purified air flow.

[0053] In this embodiment: the model of the flow control motor 18 can be selected from those available on the market as needed. The flow control motor 18 drives the fan blade 19 to rotate, providing airflow power and promoting airflow. The flow port 10 and the air outlet 16 are set together to form an airflow path, guiding air to enter from the side of the outer shell 26 and exit from the top. The flow port 10 is located on three sides of the outer shell 26, serving as an air inlet to ensure that air enters the purifier evenly. The air outlet 16 is used to discharge clean air that has been purified and sterilized.

[0054] Specifically, the lifting components include:

[0055] The control components are located inside the drive cavity 4;

[0056] The transmission assembly is provided in multiple sets, all of which are located in the drive cavity 4 and are connected to the control assembly.

[0057] The moving components are provided in multiple sets, each set of moving components is located on each set of transmission components, and all sets of moving components are connected to the suction ring 25.

[0058] In this embodiment, the control component, transmission component, and moving component cooperate with each other to control the movement of the suction ring 25 to complete its use.

[0059] Specifically: The control components include a drive gear 2 and a lifting motor 3. The lifting motor 3 is fixedly connected to the center of the drive cavity 4. The drive gear 2 is fixedly connected to the output end of the lifting motor 3. Each transmission component includes a driven gear 8 and a rotating shaft 9. The rotating shaft 9 is rotatably connected to the drive cavity 4. The driven gear 8 is fixedly connected to the rotating shaft 9 and meshes with the drive gear 2. Each moving component includes a lifting screw 29 and a docking rod 27. The lifting screw 29 is fixedly connected to the rotating shaft 9. The docking rod 27 is threadedly connected to the lifting screw 29 and is fixedly connected to the dust collection ring 25.

[0060] In this embodiment: the model of the lifting motor 3 can be selected from those available on the market as needed. The lifting motor 3 controls the rotation of the drive gear 2, and the drive gear 2 transmits the power of the lifting motor 3 to the transmission component. The lifting motor 3 can rotate in both directions. The driven gear 8 is used to receive the power of the drive gear 2 and drive the rotating shaft 9 to rotate. The rotating shaft 9 is used to transmit the rotational power to the lifting screw 29 to achieve overall use. The control component and the transmission component cooperate to make multiple lifting screws 29 rotate synchronously and control the lifting and lowering of multiple docking rods 27. The docking rods 27 are used to convert the rotational motion of the lifting screws 29 into the linear lifting and lowering motion of the suction ring 25, thus completing the lifting and lowering of the suction ring 25.

[0061] Specifically: The adsorption component includes a dust pump 7, a dust collection ring 24, and a telescopic tube 6. The dust pump 7 is fixedly connected to the adsorption chamber 5. The dust collection ring 24 is installed in the adsorption chamber 5 and connected to the dust pump 7. There are multiple telescopic tubes 6. One end of each telescopic tube 6 is connected to the dust collection ring 24, and the other end of each telescopic tube 6 is connected to the dust collection ring 25.

[0062] In this embodiment: the model of the vacuum pump 7 can be selected from those available on the market as needed. The vacuum pump 7 generates negative pressure to suck up the dust at the suction ring 25 and transport it to the dust collection ring 24. The dust collection ring 24 is used to collect the dust sucked up by the vacuum pump 7, which is convenient for regular cleaning or replacement. The telescopic tube 6 is used to keep the suction channel connected during the lifting and lowering of the suction ring 25.

[0063] Specifically: The large particle dustproof mesh 11 is movably inserted into the outer casing 26, and its surface is provided with an antibacterial coating.

[0064] Specifically: the outer casing 26 adopts an overall sealed design.

[0065] When in use, place the purifier stably on the indoor floor where purification is needed, ensuring the base 1 is stable and unobstructed. The flow control motor 18 drives the fan blades 19 to rotate, generating negative pressure to draw indoor air into the purifier through the vent 10 on the outer surface of the outer casing 26. The air passes sequentially through the large particle dust filter 11, the small particle filter 12, the activated carbon adsorption layer 13, and the ultraviolet lamp 14 for processing. The purified and sterilized air is discharged from the air outlet 16 of the upper base 20, completing one purification cycle. After a certain period of use, self-cleaning begins. During self-cleaning, the lifting motor 3 starts, controlling the drive gear 2 to rotate and transmitting power to the driven gear 8, causing the driven gear 8 to drive the corresponding rotating shaft 9 to rotate, causing the lifting screw 29 to rotate synchronously. The connecting rod 27 drives the suction ring 25 to move up and down along the outer wall of the large particle dust filter 11. At the same time, the dust pump 7 starts, generating negative pressure through the telescopic tube 6 and the suction port 28 on the suction ring 25, sucking in the dust attached to the surface of the large particle dust filter 11. The sucked-in dust is transported to the dust collection ring 24 via the telescopic tube 6 for temporary storage. After self-cleaning, it returns to its original position. The dust in the dust collection ring 24 is cleaned regularly. During use, the solar panel 17 automatically converts solar energy into electrical energy to power the equipment or charge the battery, reducing external energy consumption. The electrical energy consumed in the self-cleaning process comes primarily from the energy stored by the solar panel during the day, without the need for additional mains power. After self-cleaning, the large particle dust filter is unobstructed, reducing air intake resistance and decreasing the load on the fan blades driven by the subsequent flow control motor. The overall power consumption is lower than before cleaning. At the same time, because the large particle dust filter 11 remains unobstructed, the replacement cycle of the small particle filter 12 and the activated carbon adsorption layer 13 is extended, significantly reducing user maintenance costs. In addition, the drive chamber 4 and the adsorption chamber 5 are physically isolated by the partition plate 23, which separates the drive component and the dust collection component in the self-cleaning mechanism in space, preventing dust from entering the drive mechanism and causing jamming, thus ensuring the long-term reliability of the self-cleaning mechanism.

[0066] The control method of this invention is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air purifier, characterized in that, Includes a base (1), a housing (26), a purification mechanism, and a self-cleaning mechanism; The outer shell (26) is fixedly connected to the top of the base (1), and the top of the outer shell (26) is fixed with an upper seat (20). The bottom of the outer shell (26) is fixed with a partition plate (23), which divides the bottom of the outer shell (26) into an independent driving cavity (4) and an adsorption cavity (5). The purification mechanism is located inside the outer shell (26) and includes at least one large particle dust filter (11). The self-cleaning mechanism is used to clean the outer wall of the large particle dust filter (11), including a lifting component, an adsorption component and an annular dust suction ring (25). The dust suction ring (25) is sleeved on the outer side of the large particle dust filter (11). The inner wall of the dust suction ring (25) is provided with a suction port (28) that is inclined towards the large particle dust filter (11). The lifting component is used to drive the dust suction ring (25) to rise and fall along the axial direction of the large particle dust filter (11). The adsorption component is connected to the dust suction ring (25) to provide suction negative pressure.

2. An air purifier according to claim 1, characterized in that, A solar panel (17) is fixed at the top center of the upper seat (20). An energy storage battery compartment is provided inside the base (1). The solar panel (17) is electrically connected to the energy storage battery compartment and is used to convert solar energy into electrical energy and store it in the energy storage battery compartment. A limiting ring (21) is fixedly connected to the bottom of the upper seat (20). A sealing plate (15) is installed inside the limiting ring (21).

3. An air purifier according to claim 2, characterized in that, The solar panel (17) is electrically connected to the energy storage battery compartment through the charge and discharge management module.

4. An air purifier according to claim 1, characterized in that, The purification mechanism also includes a small particle filter (12) and an activated carbon adsorption layer (13) nested inside the large particle dust screen (11) from the outside to the inside. An ultraviolet lamp (14) is also provided at the center of the outer shell (26). A control module (22) is installed at the bottom of the ultraviolet lamp (14). The control module (22) is installed in the adsorption chamber (5).

5. An air purifier according to claim 1, characterized in that, The upper seat (20) is provided with a flow control mechanism, which includes a flow control motor (18) and a fan blade (19). The side wall of the outer shell (26) is provided with multiple flow ports (10) that communicate with the purification mechanism. The upper seat (20) is provided with an air outlet (16) to form a side-in and top-out purified air flow.

6. An air purifier according to claim 1, characterized in that, The lifting component includes: The control components are located inside the drive cavity (4); The transmission assembly is provided in multiple sets, all of which are located in the drive cavity (4) and are connected to the control assembly. The moving component is provided in multiple sets, each set of the moving component is provided on each set of transmission components, and the multiple sets of moving components are connected to the dust suction ring (25).

7. An air purifier according to claim 6, characterized in that, The control components include a drive gear (2) and a lifting motor (3). The lifting motor (3) is fixedly connected to the center of the drive cavity (4). The drive gear (2) is fixedly connected to the output end of the lifting motor (3). Each set of transmission components includes a driven gear (8) and a rotating shaft (9). The rotating shaft (9) is rotatably connected to the drive cavity (4). The driven gear (8) is fixedly connected to the rotating shaft (9), and the driven gear (8) meshes with the drive gear (2). Each set of moving components includes a lifting screw (29) and a docking rod (27). The lifting screw (29) is fixedly connected to the rotating shaft (9), and the docking rod (27) is threadedly connected to the lifting screw (29) and fixedly connected to the dust suction ring (25).

8. An air purifier according to claim 1, characterized in that, The adsorption component includes a vacuum pump (7), a dust collection ring (24), and a telescopic tube (6). The vacuum pump (7) is fixedly connected to the adsorption chamber (5). The dust collection ring (24) is installed in the adsorption chamber (5) and connected to the vacuum pump (7). There are multiple telescopic tubes (6). One end of each telescopic tube (6) is connected to the dust collection ring (24), and the other end of each telescopic tube (6) is connected to the vacuum ring (25).

9. An air purifier according to claim 1, characterized in that, The large particle dustproof net (11) is movably inserted into the outer shell (26), and its surface is provided with an antibacterial coating.

10. An air purifier according to claim 1, characterized in that, The outer casing (26) adopts an overall sealed design.

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