An air purification apparatus capable of hierarchical purification treatment

Abstract

The application relates to the technical field of air purification equipment, in particular to air purification equipment capable of performing graded purification treatment, which comprises an equipment shell, an air inlet treatment assembly is arranged at the top of the inside of the equipment shell, and a centrifugal separation assembly is arranged at the bottom of the air inlet treatment assembly. The air purification equipment capable of performing graded purification treatment is provided with the air inlet treatment assembly, air is sucked into the inside of an inner air inlet connecting box, a dust screen is inserted into the inside of the inner air inlet connecting box to intercept large-particle impurities (such as hair and paper scraps), then the air enters the inside of a treatment inner box through a wind guide frame, the fan in the inside of the wind guide fan barrel is closed after adsorption for a period of time, then the fan is reopened to make the air force downward, the air passes through three layers of inner placement plates, and the air is filtered by polyester fiber screens, active carbon fiber felt and HEPA filter paper in the inside of the inner placement plates, so that graded purification treatment is realized.

Description

Technical Field

[0001] This invention relates to the field of air purification equipment technology, specifically to an air purification device capable of graded purification. Background Technology

[0002] Against the backdrop of accelerated industrialization and increased urbanization, indoor and outdoor air quality problems are becoming increasingly serious. World Health Organization data shows that approximately 7 million people worldwide die each year from air pollution-related diseases, with indoor air pollution contributing 68% of these deaths. Air purification equipment, as a core component for improving air quality, directly impacts its purification effectiveness through its purification efficiency and adaptability.

[0003] The prior art discloses an environmentally friendly and energy-saving indoor air purification device, with announcement number CN114110898A. This device includes a purifier suspended inside a building and sliding guide devices installed at the bottom of the ceiling on both sides of the purifier. The purifier slides longitudinally along the sliding guide devices. A cylindrical filter element is built into the purifier. A dust collection device for collecting coarse particles is installed at the bottom of the purifier. A cleaning structure is provided at the top of the purifier. This cleaning structure acts on the inner wall of the filter element and sweeps the coarse particles adhering to the inner wall of the filter element downwards into the dust collection device. This device can clean the inner filter screen of the filter element during operation.

[0004] The aforementioned indoor air purification equipment is equipped with a cleaning structure that can remove particulate matter attached to the inner layer of the filter element. The removed particulate matter is then discharged into the dust collection device by the intake fan. However, its practicality is poor. Furthermore, the separation component only has a single-layer filter element, and the filter element is then cleaned. The air treatment component is singular and cannot perform graded purification, resulting in poor treatment effect. Therefore, it is necessary to design a more practical air purification equipment that can perform graded purification. Summary of the Invention

[0005] The purpose of this invention is to provide an air purification device capable of graded purification to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an air purification device capable of graded purification, comprising a device housing, an air intake processing component disposed near the top of the device housing, a centrifugal separation component disposed at the bottom of the air intake processing component, an adjustment collection component disposed near the bottom of the device housing, and an inner placement seat disposed on the right side of the device housing.

[0007] The air intake treatment assembly includes an air intake hood, which is fixedly connected to the top left side of the equipment housing. An inner air intake connection box is fixedly connected to the inside left side of the equipment housing near the top. A dustproof net is slidably connected to the front of the inner air intake connection box. A connecting plate is fixedly connected to the front of the dustproof net, and a connecting rod is fixedly connected to the back of the connecting plate. A processing inner box is fixedly connected to the right side of the inner air intake connection box. A guide fan is fixedly connected to the top of the processing inner box. An air guide frame is fixedly connected to the left side of the processing inner box. Inner placement plates are fixedly connected to both sides of the processing inner box. A polyester fiber filter is installed inside the top inner placement plate, an activated carbon fiber felt is installed inside the middle inner placement plate, and a HEPA filter paper is installed inside the bottom inner placement plate. A bottom guide ring is fixedly connected to the bottom of the processing inner box.

[0008] Preferably, the centrifugal separation assembly includes a spiral guide plate, a cylindrical cavity shell, an inner connecting ring plate, a surface ring, a connecting block, a magnetic sliding plate, a limiting sliding plate, and a magnetic carriage. The spiral guide plate is fixedly connected to the bottom of the bottom guide ring, the cylindrical cavity shell is fixedly connected to the top of the airbag, the inner connecting ring plate is fixedly connected to the inner ring of the cylindrical cavity shell, the surface ring is fixedly connected to the surface of the cylindrical cavity shell near the middle, the connecting block is fixedly connected to the side of the surface ring, the magnetic sliding plate is fixedly connected to the end of the connecting block away from the surface ring, the limiting sliding plate is fixedly connected to the left side of the inner wall of the equipment shell, and the magnetic carriage is fixedly connected to the right side of the limiting sliding plate.

[0009] Preferably, the adjusting collection assembly includes a bottom support, a connecting plate, a mounting screw, an airbag, a collection hopper, a placement frame, an elastic hollow pad, a cylindrical sponge pad, an air pump, a delivery air pipe, a placement protective frame, a hollow connecting block, a connecting pipe, and a circular plate. The bottom support is fixedly connected to the bottom of the cylindrical cavity shell, and the circular plate is slidably connected to the bottom of the bottom support. The circular plate has a threaded groove inside, and the bottom support has a connecting screw hole with the same diameter as the threaded groove inside. The connecting plate is fixedly connected to the top of the bottom support, and a limiting ring is fixedly connected to the top of the connecting plate. The inner ring of the limiting ring has an internal threaded groove. The mounting screw is threadedly connected to the inside of the connecting plate and to the top of the circular plate. The collection hopper is fixedly connected to the bottom of the circular plate, and the circular plate has an internal threaded groove inside. The device features a hollowed-out groove. The placement frame is fixedly connected to the bottom of both sides inside the equipment housing. The elastic hollow pad is fixedly connected to the inside of the placement frame. The elastic hollow pad has a hollowed-out groove inside. The diameter of the cylindrical sponge pad matches the thickness of the hollowed-out groove. The airbag component is fixedly connected to the bottom of the placement frame and to the inner wall of the elastic hollow pad. The air delivery pipe is fixedly connected to the side of the airbag component. The placement protective frame is fixedly connected to the bottom of the equipment housing. The air pump is fixedly connected to the bottom of the equipment housing. The connecting pipe is fixedly connected to the top of the air pump. The hollow connecting block is fixedly connected to the top of the placement protective frame. The air delivery pipe is connected to the inside of the hollow connecting block. The connecting pipe is fixedly connected to the bottom of the hollow connecting block.

[0010] Preferably, there are two magnetic carriages, and the right-side limiting sliding plate is fixedly connected to the left side of the inner placement seat.

[0011] Preferably, the width of the magnetic sliding plate is adapted to the distance between the front and rear adjacent magnetic slides, the magnetic sliding plate is slidably connected to the adjacent sides of the magnetic slides, and the magnetic sliding plate is magnetically connected to the magnetic slides.

[0012] Preferably, the front of the inner air intake connection box is provided with a rectangular slot, and the back area of ​​the dustproof mesh is adapted to the area of ​​the rectangular slot.

[0013] Preferably, there are three inner placement plates, which are arranged in a longitudinal array at equal intervals inside the inner placement plate. The inner placement plate at the top is provided with a polyester fiber filter screen, the inner placement plate in the middle is provided with an activated carbon fiber felt, and the inner placement plate at the bottom is provided with a HEPA filter paper. The bottom of the processing inner box is fixedly connected with a bottom guide ring. Different processing components are placed in close proximity to each other to ensure processing quality.

[0014] Preferably, the front of the inner air intake connecting box is provided with a through groove, the diameter of which is adapted to the diameter of the connecting rod. The connecting rod is inserted into the front of the inner air intake connecting box. The setting of the connecting rod limits the installation of the dustproof net, ensuring stable installation and preventing it from shifting under long-term wind force, thus affecting the treatment of large particulate impurities.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This graded purification air purification device, equipped with an air intake treatment component, draws in air by activating the guide fan at the top of the inner chamber. Inside the inner chamber, a dust filter is inserted to intercept large particles, such as hair and paper scraps. The air then passes through the air guide frame into the inner chamber. After a period of adsorption, the fan inside the guide fan can be turned off and then reopened to direct the airflow downwards, allowing the air to pass through three layers of inner placement plates. The air is then filtered using polyester fiber filters, activated carbon fiber felt, and HEPA filter paper installed within these inner placement plates, achieving graded purification.

[0016] 2. This graded air purification device, equipped with a centrifugal separation component, allows gas to undergo preliminary treatment before entering the inner wall of a spiral guide plate. Inside the spiral guide plate, the gas spirals downwards, creating a rotating airflow. Centrifugal force is used to separate particles larger than PM. A pneumatic propulsion component pushes the cylindrical cavity shell and inner connecting ring plate upwards. During this upward movement, the connecting block and magnetic slide ensure stable lifting and sliding, preventing lateral deviation and avoiding contact with the spiral guide plate. The cylindrical cavity shell and inner connecting ring plate continuously move upwards until their top contacts the bottom of the inner chamber, ensuring unobstructed airflow for centrifugal separation.

[0017] 3. This graded air purification device features an adjustable collection component that collects dust using a lower collection hopper. The collection hopper and circular plate are mounted on the bottom of the support component via mounting screws. The collected dust can be disassembled for processing, and a protective frame supports the bottommost collection hopper. It can be equipped with a multi-stage blowing component and has a collection device at the bottom that is easy to disassemble and assemble. The treated gas can be discharged normally through the exhaust pipe on the right side of the device housing, resulting in good performance. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the device housing, air intake treatment assembly, adjustment and collection assembly, and inner placement seat of the present invention. Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 5 This is a schematic diagram of the three-dimensional structure of the adjustment and collection component of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 7 This is a three-dimensional structural diagram of the air intake treatment component of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point D.

[0020] In the diagram: 1. Equipment housing; 2. Air intake treatment assembly; 201. Air intake hood; 202. Inner air intake connection box; 203. Connecting plate; 204. Connecting rod; 205. Dustproof net; 206. Inner treatment box; 207. Guide fan cylinder; 208. Air guide frame; 209. Inner placement plate; 210. Polyester fiber filter screen; 211. Activated carbon fiber felt; 212. HEPA filter paper; 213. Bottom guide ring; 3. Centrifugal separation assembly; 301. Spiral guide plate; 302. Cylindrical cavity shell; 303. Inner connecting ring plate 304. Surface ring; 305. Connecting block; 306. Magnetic sliding plate; 307. Limiting sliding plate; 308. Magnetic slide; 4. Adjustable collection assembly; 401. Bottom support; 402. Connecting plate; 403. Mounting screw; 404. Airbag; 405. Collection hopper; 406. Placement frame; 407. Elastic hollow pad; 408. Cylindrical sponge pad; 409. Air pump; 410. Air delivery pipe; 411. Placement protective frame; 412. Hollow connecting block; 413. Connecting pipe; 414. Circular plate; 5. Inner placement seat. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Please see Figure 1-8 The present invention provides the following technical solutions: An air purification device capable of graded purification includes a device housing 1, an air intake processing component 2 is disposed near the top inside the device housing 1, a centrifugal separation component 3 is disposed at the bottom of the air intake processing component 2, an adjustment collection component 4 is disposed near the bottom inside the device housing 1, and an inner placement seat 5 is disposed on the right side inside the device housing 1.

[0024] The air intake treatment assembly 2 includes an air intake shroud 201, which is fixedly connected to the top left side of the equipment housing 1. An inner air intake connection box 202 is fixedly connected to the inside of the equipment housing 1, near the top on the left side. A dustproof net 205 is slidably connected to the front of the inner air intake connection box 202. A connecting plate 203 is fixedly connected to the front of the dustproof net 205, and a connecting rod 204 is fixedly connected to the back of the connecting plate 203. An inner treatment box 206 is fixedly connected to the right side of the inner air intake connection box 202. A guide fan cylinder 207 is fixedly connected to the top of the inner chamber 206. An air guide frame 208 is fixedly connected to the left side of the inner chamber 206. Inner placement plates 209 are fixedly connected to both sides of the inner chamber 206. A polyester fiber filter screen 210 is installed inside the top inner placement plate 209. An activated carbon fiber felt 211 is installed inside the middle inner placement plate 209. A HEPA filter paper 212 is installed inside the bottom inner placement plate 209. A bottom end is fixedly connected to the bottom of the inner chamber 206. The guide ring 213 and the inner air intake connection box 202 have rectangular slots on their front sides. The back area of ​​the dust filter 205 matches the area of ​​the rectangular slots. There are three inner placement plates 209, which are arranged in a longitudinal array at equal intervals inside the inner placement plates 209. The top inner placement plate 209 has a polyester fiber filter 210 inside, the middle inner placement plate 209 has an activated carbon fiber felt 211 inside, and the bottom inner placement plate 209 has a HEPA filter paper 2 inside. 12. The bottom of the inner chamber 206 is fixedly connected to a bottom guide ring 213, which holds different processing components and keeps them close to each other to ensure processing quality. The front of the inner air intake connection box 202 has a through groove, the diameter of which is adapted to the diameter of the connecting rod 204. The connecting rod 204 is inserted into the front of the inner air intake connection box 202. The setting of the connecting rod 204 limits the installation of the dustproof net 205 to ensure stable installation and prevents it from shifting under long-term wind influence, thus affecting the processing of large particulate impurities.

[0025] The centrifugal separation assembly 3 includes a spiral guide plate 301, a cylindrical cavity shell 302, an inner connecting ring plate 303, a surface ring 304, a connecting block 305, a magnetic sliding plate 306, a limiting sliding plate 307, and a magnetic carriage 308. The spiral guide plate 301 is fixedly connected to the bottom of the bottom guide ring 213, the cylindrical cavity shell 302 is fixedly connected to the top of the airbag 404, the inner connecting ring plate 303 is fixedly connected to the inner ring of the cylindrical cavity shell 302, the surface ring 304 is fixedly connected to the surface of the cylindrical cavity shell 302 near the middle, and the connecting block 305 is fixedly connected to the surface. On the side of the ring 304, the magnetic sliding plate 306 is fixedly connected to the end of the connecting block 305 away from the surface ring 304. The limiting sliding plate 307 is fixedly connected to the left side of the inner wall of the equipment housing 1. The magnetic slide 308 is fixedly connected to the right side of the limiting sliding plate 307. There are two magnetic slides 308. The right limiting sliding plate 307 is fixedly connected to the left side of the inner placement seat 5. The width of the magnetic sliding plate 306 is adapted to the distance between the front and rear adjacent magnetic slides 308. The magnetic sliding plate 306 is slidably connected to the close side of the magnetic slide 308. The magnetic sliding plate 306 is magnetically connected to the magnetic slide 308.

[0026] The adjustable collection assembly 4 includes a bottom support 401, a connecting plate 402, a mounting screw 403, an airbag 404, a collection hopper 405, a placement frame 406, an elastic hollow pad 407, a cylindrical sponge pad 408, an air pump 409, a delivery air pipe 410, a placement protective frame 411, a hollow connecting block 412, a connecting pipe 413, and a circular plate 414. The bottom support 401 is fixedly connected to the bottom of the cylindrical cavity shell 302, and the circular plate 414 is slidably connected to the bottom support 401. At the bottom, the circular plate 414 has a threaded groove inside, and the bottom support 401 has a connecting screw hole with the same diameter as the threaded groove inside. The connecting plate 402 is fixedly connected to the top of the bottom support 401. A limiting ring is fixedly connected to the top of the connecting plate 402. The inner ring of the limiting ring has an internal threaded groove. The mounting screw 403 is threadedly connected to the inside of the connecting plate 402 and to the top of the circular plate 414. The collecting hopper 405 is fixedly connected to the bottom of the circular plate 414. The circular plate 414 has a hollowed-out groove inside. The frame 406 is fixedly connected to the bottom of both sides inside the equipment housing 1. The elastic hollow pad 407 is fixedly connected to the inside of the frame 406. The elastic hollow pad 407 has a hollowed-out groove inside. The cylindrical sponge pad 408 has a diameter that matches the thickness of the hollowed-out groove. The airbag component 404 is fixedly connected to the bottom of the frame 406 inside and is connected to the elastic hollow pad. The inner wall of 407 has an air delivery pipe 410 fixedly connected to the side of the airbag component 404, a protective frame 411 fixedly connected to the bottom of the equipment housing 1, an air pump 409 fixedly connected to the bottom of the equipment housing 1, a connecting pipe 413 fixedly connected to the top of the air pump 409, a hollow connecting block 412 fixedly connected to the top of the protective frame 411, an air delivery pipe 410 connected to the inside of the hollow connecting block 412, and a connecting pipe 413 fixedly connected to the bottom of the hollow connecting block 412.

[0027] In use, the guide fan duct 207 at the top of the inner processing chamber 206 is activated, generating an upward airflow. Guided by the inner air intake connecting chamber 202 and the air guide frame 208, air is drawn into the inner air intake connecting chamber 202 through the air intake hood 201. A dust filter 205 is inserted inside the inner air intake connecting chamber 202 to intercept large particles of impurities, such as hair and paper scraps. These particles then enter the inner processing chamber 206 through the air guide frame 208. After a period of adsorption, the fan inside the guide fan duct 207 can be turned off and then reopened to allow airflow. The air is forced downwards, passing through the three-layer inner plate 209. It is filtered by the polyester fiber filter 210, activated carbon fiber felt 211, and HEPA filter paper 212 installed inside the inner plate 209, achieving staged purification. After preliminary treatment, the air enters the inner wall of the spiral guide plate 301, spiraling downwards inside the spiral guide plate 301, creating a rotating airflow. Centrifugal force is used to separate particles larger than PM10. During use, the air pump 409 can be activated in conjunction with the connecting pipe 413 and the delivery pipe 410 to input air into the airbags 404 on both sides, causing the airbags 404 to... 4. Inflation expands the airbag component 404, causing its top to extend upwards. The elastic hollow pad 407, which houses the airbag component 404, works in conjunction with the internal cylindrical sponge pad 408, providing sufficient elastic space to ensure the airbag component 404 can expand normally. The airbag component 404 can push the cylindrical cavity shell 302 and the inner connecting ring plate 303 upwards. During the sliding of the cylindrical cavity shell 302, the connecting block 305 and the magnetic slide 308 ensure stable lifting and sliding, preventing lateral deviation and avoiding scraping against the spiral guide plate 301. The cylindrical cavity shell 302 and the inner connecting ring plate 303 continuously move upwards. The gas flows until the top contacts the bottom of the inner casing 206, ensuring unobstructed airflow and enabling centrifugal separation. The separated impurities can be collected using the collection hopper 405 below. The collection hopper 405 and the circular plate 414 are mounted on the bottom of the bottom support 401 via mounting screws 403. The collected dust can be disassembled for processing, and the protective frame 411 can support the bottommost collection hopper 405. A multi-stage blowing assembly can be installed, and a collection device that is easy to disassemble and assemble is provided below. The treated gas can be discharged normally through the exhaust pipe on the right side of the equipment housing 1, resulting in good performance.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An air purification device capable of graded purification, comprising a device housing (1), characterized in that: An air intake processing component (2) is provided near the top inside the device housing (1), a centrifugal separation component (3) is provided at the bottom of the air intake processing component (2), an adjustment collection component (4) is provided near the bottom inside the device housing (1), and an inner placement seat (5) is provided on the right side inside the device housing (1). The air intake treatment assembly (2) includes an air intake shroud (201), which is fixedly connected to the top left side of the equipment housing (1). An inner air intake connection box (202) is fixedly connected to the top left side of the equipment housing (1). A dustproof net (205) is slidably connected to the front of the inner air intake connection box (202). A connecting plate (203) is fixedly connected to the front of the dustproof net (205). A docking rod (204) is fixedly connected to the back of the connecting plate (203). An inner processing box (206) is fixedly connected to the right side of the inner air intake connection box (202). A guide fan cylinder (207) is fixedly connected to the top of the processing inner box (206). A guide frame (208) is fixedly connected to the left side of the inside of the processing inner box (206). An inner placement plate (209) is fixedly connected to both sides of the inside of the processing inner box (206). A polyester fiber filter screen (210) is provided inside the top inner placement plate (209). An activated carbon fiber felt (211) is provided inside the middle inner placement plate (209). A HEPA filter paper (212) is provided inside the bottom inner placement plate (209). A bottom guide ring (213) is fixedly connected to the bottom of the processing inner box (206).

2. The air purification device with graded purification function according to claim 1, characterized in that: The centrifugal separation assembly (3) includes a spiral guide plate (301), a cylindrical cavity shell (302), an inner connecting ring plate (303), a surface ring (304), a connecting block (305), a magnetic sliding plate (306), a limiting sliding plate (307), and a magnetic carriage (308). The spiral guide plate (301) is fixedly connected to the bottom of the bottom guide ring (213), the cylindrical cavity shell (302) is fixedly connected to the top of the airbag (404), and the inner connecting ring plate (303) is fixedly connected to the bottom of the airbag (404). The inner ring of the cylindrical cavity shell (302) is fixedly connected to the surface of the cylindrical cavity shell (302) near the middle. The connecting block (305) is fixedly connected to the side of the surface ring (304). The magnetic sliding plate (306) is fixedly connected to the end of the connecting block (305) away from the surface ring (304). The limiting sliding plate (307) is fixedly connected to the left side of the inner wall of the equipment housing (1). The magnetic slide (308) is fixedly connected to the right side of the limiting sliding plate (307).

3. The air purification device with graded purification function according to claim 2, characterized in that: The regulating collection assembly (4) includes a bottom support (401), a connecting plate (402), a mounting screw (403), an airbag (404), a collection hopper (405), a placement frame (406), an elastic hollow pad (407), a cylindrical sponge pad (408), an air pump (409), a delivery air pipe (410), a placement protective frame (411), a hollow connecting block (412), a connecting pipe (413), and a circular plate (414). The bottom support (401) is fixedly connected to the bottom of the cylindrical cavity shell (302), and the circular plate (414) is slidably connected to the bottom support (409). 1) At the bottom, the circular plate (414) has a threaded groove inside, and the bottom support (401) has a connecting screw hole with the same diameter as the threaded groove inside. The connecting plate (402) is fixedly connected to the top of the bottom support (401). A limiting ring is fixedly connected to the top of the connecting plate (402). The inner ring of the limiting ring has an internal threaded groove. The mounting screw (403) is threadedly connected to the inside of the connecting plate (402). The mounting screw (403) is threadedly connected to the top of the circular plate (414). The collecting hopper (405) is fixedly connected to the bottom of the circular plate (414). The circular plate (414) has a hollowed-out groove inside. The placement frame (406) is fixedly connected to the bottom of both sides inside the equipment housing (1). The elastic hollow pad (407) is fixedly connected to the inside of the placement frame (406). The elastic hollow pad (407) has a hollowed-out groove inside. The elastic hollow pad (407) is fixedly connected to the inside of the elastic hollow pad (407). The diameter of the cylindrical sponge pad (408) is adapted to the thickness of the hollowed-out groove. The airbag component (404) is fixedly connected to the bottom of the inside of the placement frame (406). The airbag component (404) is connected to the elastic hollow pad (408). 7) The inner wall of the air delivery pipe (410) is fixedly connected to the side of the airbag component (404), the protective frame (411) is fixedly connected to the bottom of the inner part of the equipment housing (1), the air pump (409) is fixedly connected to the bottom of the inner part of the equipment housing (1), the connecting pipe (413) is fixedly connected to the top of the air pump (409), the hollow connecting block (412) is fixedly connected to the top of the inner part of the protective frame (411), the air delivery pipe (410) is connected to the inside of the hollow connecting block (412), and the connecting pipe (413) is fixedly connected to the bottom of the hollow connecting block (412).

4. The air purification device with graded purification function according to claim 3, characterized in that: There are two magnetic carriages (308), and the right limiting slide plate (307) is fixedly connected to the left side of the inner placement seat (5).

5. The air purification device with graded purification function according to claim 4, characterized in that: The width of the magnetic sliding plate (306) is adapted to the distance between the front and rear adjacent magnetic slides (308). The magnetic sliding plate (306) is slidably connected to the adjacent side of the magnetic slide (308). The magnetic sliding plate (306) is magnetically connected to the magnetic slide (308).

6. The air purification device with graded purification function according to claim 5, characterized in that: The front of the inner air intake connecting box (202) is provided with a rectangular slot, and the back area of ​​the dustproof net (205) is adapted to the area of ​​the rectangular slot.

7. The air purification device with graded purification function according to claim 6, characterized in that: The number of inner placement plates (209) is three, and the three inner placement plates (209) are arranged in a longitudinal array at equal intervals inside the inner placement plate (209).

8. An air purification device capable of graded purification according to claim 7, characterized in that: The front of the inner air intake connecting box (202) is provided with a through groove, the diameter of which is adapted to the diameter of the connecting rod (204), and the connecting rod (204) is inserted into the front of the inner air intake connecting box (202).

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