Dust collector dust removal device, dust collector, and method

Abstract

A dust collector dust removal device, a dust collector, and a method. The dust collector dust removal device comprises a cup body (210) having a hollow interior, a filter assembly (220) arranged in the cup body (210) and provided with a filter screen part (222), a filter screen dust scraping member (260) sleeved on the outer side of the filter screen part (222), and a push button assembly (400) arranged on one side of the cup body (210) and driving the filter assembly (220) to move, wherein when the filter assembly (220) moves, the filter assembly (220) is in interference fit with or in clearance fit with the filter screen dust scraping member (260), and dust on the outer surface of the filter screen part (222) is scraped. The present invention implements dust removal of a filter screen to prevent meshes from being blocked, and can remove accumulated dust on the inner wall of the cup body (210), ensuring working reliability and cyclone filtering performance.

Description

Dust removal device for vacuum cleaner, vacuum cleaner and method Technical Field

[0001] The present invention relates to the technical field of household cleaning, and in particular to a dust removal device for a vacuum cleaner, a vacuum cleaner and a method. Background Art

[0002] With the development of the times and the improvement of people's living standards, floor cleanliness has a significant impact on the working and living environment. Vacuum cleaners are becoming increasingly important in the lives of domestic families. They include a main unit and a removable dust removal device mounted on the vacuum cleaner. The dust removal device of a vacuum cleaner typically includes a cyclone mesh cover located within the primary cyclone chamber and a secondary cyclone located downstream of the cyclone mesh cover. During operation, the cyclone mesh cover easily accumulates dust, which affects its usability. Therefore, it is usually necessary for the user to disassemble and clean it, which makes cleaning cumbersome and affects the user's usability. Summary of the Invention

[0003] The object of the present invention is to provide a dust removal device for a vacuum cleaner, a vacuum cleaner and a method thereof, so as to realize dust cleaning of a filter screen, prevent mesh clogging, and ensure reliable operation and cyclone filtering performance.

[0004] To achieve the purpose of the present invention, the present invention provides the following first technical solution: a dust removal device for a vacuum cleaner, which includes a cup body with a hollow interior, a filter assembly arranged in the cup body and having a filter mesh portion, a filter mesh scraper arranged on the outside of the filter mesh portion, and a push button assembly arranged on one side of the cup body and driving the filter assembly to move, wherein the filter assembly interferes with the filter mesh scraper when moving, and the outer surface of the filter mesh portion is scraped to clean the filter mesh and prevent the mesh from being clogged.

[0005] On the basis of the above-mentioned first technical solution, the following subsidiary technical solutions are further included:

[0006] Preferably, the filter assembly includes a supporting portion located at one end of the filter mesh portion and in contact with one end of the push button assembly to achieve movement of the filter assembly relative to the cup body.

[0007] Preferably, the push button assembly includes a push button member, a push rod member movably connected to the push button member, and an elastic member sleeved on the push rod member, so as to realize the reciprocating motion of the filter screen scraper member.

[0008] Preferably, the central axis direction of the cup body is parallel to the movement direction of the push button assembly, wherein the radial gap between the filter scraper and the outer surface of the filter portion is less than 5 mm to ensure that the movement of the filter scraper is more reliable and smooth.

[0009] Preferably, the filter assembly further comprises a secondary cyclone located downstream of the filter mesh portion and at least partially surrounded by the filter mesh portion, and a secondary dust collecting chamber located at one end of the secondary cyclone for further cyclonic filtration and airflow classification processing.

[0010] The present invention provides the following second technical solution: a vacuum cleaner, which includes a body, a vacuum cleaner dust removal device connected to the body, and a motor located in the body and downstream of the vacuum cleaner dust removal device, wherein the vacuum cleaner dust removal device is the vacuum cleaner dust removal device described in the first technical solution.

[0011] On the basis of the above second technical solution, the following subsidiary technical solutions are further included:

[0012] Preferably, the body includes an air inlet pipe, a motor housing portion for housing the motor, and a handle portion connected to the motor housing portion at one end, wherein the vacuum cleaner dust removal device is simultaneously connected and fixed to the air inlet pipe and the motor housing portion to achieve reliable fixation of the vacuum cleaner dust removal device.

[0013] Preferably, the dust removal device of the vacuum cleaner also includes a dust cup scraper that is in contact with the other end of the push button assembly and can scrape dust on the inner wall of the cup body, wherein the radial gap between the dust cup scraper and the inner wall of the cup body is less than 5 mm, so as to achieve timely cleaning of the inner wall of the cup body and prevent dust accumulation.

[0014] Preferably, the filter scraper includes an annular wall, a hollow scraper ring extending from the bottom of the annular wall and made of soft material, a central cavity at least partially surrounded by the annular wall, and a sealing ring integrally formed with the scraper ring and located on the outside of the annular wall, so as to scrape and clean the filter.

[0015] Preferably, the filter scraper includes an opening for separating the two ends of the annular wall and communicating with the central cavity, and a guide section extending from the bottom of the annular wall and located outside the scraper ring, wherein the radial section passes through the opening and is at least partially exposed on the outside of the cup body, and is in contact with one end of the push button assembly.

[0016] Preferably, the filter assembly includes an integrally formed filter wall body located above the filter mesh portion, a rest portion located at one end of the filter mesh portion and in abutment contact with one end of the push button assembly, a secondary cyclone located downstream of the filter mesh portion and at least partially surrounded by the filter mesh portion, and a secondary dust collecting chamber located at one end of the secondary cyclone, wherein the rest portion is located between the filter mesh portion and the filter wall body and isolates the air paths of the two, and the rest portion is provided with a radial section radially extending from the filter wall body, and a plurality of circumferentially arranged perforations to ensure reliable movement of the filter assembly, and the primary and secondary airflows are isolated from each other and do not affect each other.

[0017] Preferably, the dust cup scraper is fixedly arranged at the lower end of the cup body and away from the top cover of the cup body and close to the bottom cover of the cup body. It includes a hollow truncated conical ring, a dust cup scraper cavity surrounded by the truncated conical ring, a seal integrally formed on the truncated conical ring, and a lug integrally formed on the truncated conical ring, wherein the lug is provided with a sealing extension section integrally formed with the seal to scrape the dust accumulated on the inner wall of the cup body.

[0018] Preferably, the push button assembly includes a push button member, a push rod member connected to the push button member, and a push rod elastic member sleeved on the push rod member, wherein the push button member includes a push button, a push button body integrally formed with the push button on one side and extending axially, and a push button block integrally formed with the other side of the push button body to realize the movement of the push rod member.

[0019] The present invention provides the following third technical solution: a method, which is applied to the dust removal device of the vacuum cleaner described in the second technical solution, comprising the following steps:

[0020] Step S1: Push the push button assembly in a first direction to move the filter assembly, and then proceed to step S2;

[0021] Step S2: The dust on the outer surface of the filter is scraped off by the stationary filter scraper.

[0022] On the basis of the above third technical solution, the following subsidiary technical solutions are further included:

[0023] Step S3: Pushing the push button assembly in the second direction to move the dust cup scraper, and then proceeding to step S4, wherein the first direction and the second direction are opposite to each other;

[0024] Step S4: The dust on the inner wall of the cup body is scraped by the dust cup scraper until it is finished.

[0025] Compared with the prior art, the present invention has the following positive effects: it allows the filter assembly to move, which not only cleans the dust on the filter screen, but also reduces the dust accumulation on the outer surface of the filter assembly. At the same time, the dust cup scraper also reduces the dust accumulation on the inner wall of the dust cup, making the cleaning more thorough and ensuring reliable operation and cyclone filtering performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] FIG1 is a cross-sectional view of a push button in an initial state according to a first embodiment of the present invention;

[0028] FIG2 is a cross-sectional view of the push button in the downward position according to the first embodiment of the present invention;

[0029] FIG3 is a cross-sectional view of the push button in an upward position according to the first embodiment of the present invention;

[0030] FIG4 is an exploded view of the first embodiment of the present invention;

[0031] FIG5 is a side view of the first embodiment of the present invention, wherein part of the structure is removed to reveal the internal structure;

[0032] FIG6 is a perspective view of a partial structure of the first embodiment of the present invention, illustrating the movement of the push rod;

[0033] FIG7 is a perspective view of a filter assembly according to a first embodiment of the present invention;

[0034] FIG8 is a perspective view of the filter screen scraper in the first embodiment of the present invention;

[0035] FIG9 is a perspective view of the dust cup scraping member in the first embodiment of the present invention;

[0036] FIG10 is a perspective view of a second embodiment of the present invention. DETAILED DESCRIPTION

[0037] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "front end", "back end", "head", "tail", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0038] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0039] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] Embodiment: As shown in Figures 1-9, the present invention discloses a first embodiment of a dust removal device for a vacuum cleaner, which includes: a cup body 210 with a hollow interior and open at both ends, a filter assembly 220 disposed in the cup body 210 and having a filter mesh portion 222, a cup body top cover 230 that at least partially covers the top of the cup body 210, a cup body bottom cover 240 that can rotatably cover the bottom end of the cup body 210, a cup body side cover 250 located on one side of the cup body 210 and having a hollow interior, a filter mesh scraper sleeved on the outside of the filter mesh portion 222, and a filter mesh scraper sleeve. The cup 210 includes a dust cup scraper 270, a push button assembly 400 disposed on one side of the cup 210 and driving the filter assembly 220 to move and at least partially shielded by the cup side cover 250, a dust cup scraper 270 abutting against the other end of the push button assembly 400 and capable of scraping the inner wall of the cup 210, and a filter element 290 located downstream of the filter 222 and upstream of the motor. When the filter assembly 220 moves, it has an interference fit or a clearance fit with the filter scraper 260, scraping dust from the outer surface of the filter 222. When the clearance fit is achieved, the radial clearance between the filter scraper 260 and the outer surface of the filter 222 is less than 5 mm and greater than 0 mm. The central axis of the cup 210 is parallel to the direction of movement of the push button assembly 400. The cup bottom cover 240 is provided with a bottom cover shaft 242 on one side and a bottom cover lock 244 on the other side.

[0041] The cup body 210 is generally a hollow cylinder with both ends open, creating a primary cyclone inside. It includes a cup cavity 212, a bottom cover shaft hole 213 located on one side of the cup cavity 212, an ash inlet 214 located on one side of the cup cavity 212 and above the bottom cover shaft hole 213, a notch 215 located at the upper end and communicating with the cup cavity 212, and an unlocking button 216 located on the other side of the cup cavity 212 for unlocking the cup bottom cover 240. The bottom cover shaft 242 is coaxially connected to the bottom cover shaft hole 213, allowing the cup bottom cover 240 to rotate about the bottom cover shaft 242. The unlocking button 216 locks with the bottom cover lock 244.

[0042] The filter assembly 220 includes an integrally formed filter wall body 223 positioned above the filter mesh portion 222; a support portion 224 located at one end of the filter mesh portion 222 and abutting against one end of the push button assembly 400; a secondary cyclone 280 located downstream of the filter mesh portion 222 and at least partially surrounded by the filter mesh portion 222; and a secondary dust collection chamber 282 located at one end of the secondary cyclone 280. The support portion 224 is located between the filter mesh portion 222 and the filter wall body 223, isolating the air flow between the two. The support portion 224 is provided with a radial section 227 extending radially from the filter wall body 223 and a plurality of circumferentially arranged perforations 228. Within the filter wall body 223 is a secondary receiving chamber 229 that at least partially accommodates the secondary cyclone 280 and communicates with the secondary dust collection chamber 282. The projected area of ​​the support portion 224 in the axial direction is greater than the projected area of ​​the filter mesh portion 222 or the filter wall body 223. The filter 222 is provided with multiple meshes to prevent large dust particles from entering the meshes and flowing into the secondary cyclone 280. In this embodiment, there are multiple secondary cyclones 280, but a single one is also possible. The secondary cyclone 280 is roughly truncated conical, with a larger upper end and a smaller lower end. The radial segment 227 reciprocates within the notch 215.

[0043] The filter scraper 260 is fixedly mounted at the upper end of the cup body 210, away from the cup bottom cover 240 and shielded by the cup top cover 230. It comprises a non-closed annular wall 261, a hollow scraper ring 262 made of a soft material extending from the bottom of the annular wall 261, a central cavity 263 at least partially surrounded by the annular wall 261, a sealing ring 264 integrally formed with the scraper ring 262 and located outside the annular wall 261, an opening 265 separating the ends of the annular wall 261 and communicating with the central cavity 263, and a guide section 266 extending from the bottom of the annular wall 261 and located outside the scraper ring 262. Both the guide section 266 and the scraper ring 262 are located at the bottom of the sealing ring 264. The scraper ring 262 is mounted outside the filter portion 222 and has the shape of a truncated cone with a larger upper end and a smaller lower end. The sealing ring 264 ensures a circumferential seal for the filter scraper 260. Opening 265 is connected to notch 215, and radial section 227 extends through opening 265 and notch 215, at least partially exposed outside cup body 210, and abuts against one end of push button assembly 400. Guide section 266 is used to guide the airflow from ash inlet 214 in a tangential direction to form a primary cyclone.

[0044] The dust cup scraper 270 is fixedly disposed at the lower end of the cup body 210, away from the cup body top cover 230 and close to the cup body bottom cover 240. It includes a hollow frustoconical ring 272, a dust cup scraper cavity 274 surrounded by the frustoconical ring 272, a seal 276 integrally formed with the frustoconical ring 272, and a lug 278 integrally formed with the frustoconical ring 272. The lug 278 is provided with a sealing extension integrally formed with the seal 276. The dust cup scraper 270 and the inner wall of the cup body have an interference fit or a clearance fit. When the clearance fit is used, the radial clearance between the dust cup scraper 270 and the inner wall of the cup body is less than 5 mm and greater than 0 mm.

[0045] This embodiment further includes a support rod 225 located in the annular wall 261 and extending axially to the cup body top cover 230 , and a support elastic member 226 sleeved on the support rod 225 .

[0046] The filter element 290 is cylindrical and is preferably made of high-density sponge or HEPA, and is used to re-filter the airflow flowing out of the secondary cyclone 280.

[0047] The push button assembly 400 includes a push button member, a push rod member 420 connected to the push button member, and a push rod elastic member 440 mounted on the push rod member 420. The push button member includes a push button 402, a push button body 404 integrally formed with the push button 402 on one side and extending axially, and a push button block 406 integrally formed with the push button body 404 on the other side. The axial projection area of ​​the push button block 406 is much larger than the axial projection area of ​​the push button body 404 and also larger than the axial projection area of ​​the radial section 227. The upper end of the push button block 406 abuts against the radial section 227. The push button block 406 is disposed adjacent to the ash inlet 214. The push rod member 420 includes a fixed block 422 located at the upper end, which fixes one end of the push rod elastic member 440 and abuts against the lower end of the push button block 406, and a positioning slot 424 integrally connected to the fixed block 422. The cup body 210 is provided with a positioning rib that cooperates with the positioning groove 424 to position the push rod 420. A space is formed between the interior of the cup side cover 250 and the cup body 210 to allow movement of the radial section 227, the push button, and the push rod 420. The push rod 420 abuts against the sealing extension of the lug 278 to promote axial reciprocating motion of the dust cup scraping member 270.

[0048] As shown in Figure 10, based on the first embodiment, the present invention further discloses a second embodiment of a vacuum cleaner, which includes a body 100, a vacuum cleaner dust removal device 200 connected to the body 100, a motor located in the body 100 and downstream of the vacuum cleaner dust removal device 200, and a battery 300 for supplying power to the motor, wherein the vacuum cleaner dust removal device 200 is the vacuum cleaner dust removal device in the first embodiment.

[0049] The body 100 includes an air inlet duct 120, a motor housing portion 140 for housing the motor, a handle portion 160 connected to the motor housing portion 140 at one end, a gripping space 150 located between the motor housing portion 140 and the handle portion 160 and for accommodating the user's fingers, and a battery housing portion 180 connected to the other end of the handle portion 160, wherein the vacuum cleaner dust removal device 200 is connected and fixed to the air inlet duct 120 and the motor housing portion 140 at the same time.

[0050] The dust removal device 200 of the vacuum cleaner further includes a dust cup scraper 270 that abuts against the other end of the push button assembly 400 and can scrape the inner wall of the cup body 210 .

[0051] The battery 300 is preferably a rechargeable battery such as a lithium battery or a nickel-metal hydride battery.

[0052] Initially, push button block 406 is inactive and at rest, and support elastic member 226 and push rod elastic member 440 are in their initial elastic state, meaning they are undeformed. To clean filter 222, the user's finger pushes push button 402 axially upward. Push button block 406 pushes radial segment 227 upward within notch 215, compressing support elastic member 226 and causing it to deform. The scraping ring 262 then scrapes the outer surface of filter 222, reducing mesh blockage. The filter element 290 protrudes from the cup cover 230 and becomes exposed. During this movement, dust accumulated on the outer surface of the filter assembly also slides off. When the dust cup inner wall needs to be cleaned, the user pushes the push button 402 downward along the axial direction. The push button block 406 pushes the fixed block 422 of the push rod 420 downward, compressing the push rod elastic member 440 to deform. The lug 278 then moves downward and drives the frustoconical ring 272 to scrape the inner wall of the cup, thereby promptly cleaning the dust cup inner wall. At the same time, a limit ring is provided on the inner wall of the cup to prevent the dust cup scraper 270 from moving further upward.

[0053] Based on the second embodiment, the present invention further includes a third embodiment of a method, which includes the following steps:

[0054] Step S1: Push the push button assembly 400 in a first direction to move the filter assembly 220 and proceed to step S2;

[0055] Step S2: The dust on the outer surface of the filter mesh portion 222 is scraped by the stationary filter mesh scraper 260 until the first stage of cleaning is completed, wherein the scraping ring 262 of the filter mesh scraper 260 is a truncated cone with a larger upper end and a smaller lower end and is mounted on the outer side of the filter mesh portion 222, that is, the outer side of the top end of the filter assembly 220.

[0056] This embodiment also includes the following steps:

[0057] Step S3: Push the push button assembly 400 in the second direction to move the dust cup scraper 270, and proceed to step S4, wherein the first direction and the second direction are opposite to each other;

[0058] Step S4: The dust on the inner wall of the cup is scraped by the dust cup scraper 270 until the second stage of cleaning is completed, wherein the truncated cone ring 272 is sleeved on the outer side of the bottom end of the filter assembly 220.

[0059] The advantages of the present invention are: allowing the filter assembly to move, which not only cleans the dust on the filter screen, but also reduces the dust accumulation on the outer surface of the filter assembly. At the same time, the dust cup scraper also reduces the dust accumulation on the inner wall of the dust cup, making the dust cleaning more thorough and ensuring reliable operation and cyclone filtering performance.

[0060] The above are only preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can make several modifications and improvements without departing from the creative concept of the present invention, which should be included in the scope of protection of the present invention.

Claims

1. A dust removal device for a vacuum cleaner, characterized in that The invention comprises a cup body (210) with a hollow interior, a filter assembly (220) arranged in the cup body (210) and having a filter mesh portion (222), a filter mesh scraper (260) sleeved on the outside of the filter mesh portion (222), and a push button assembly (400) arranged on one side of the cup body (210) and driving the filter assembly (220) to move, wherein the filter assembly (220) is interference-fitted or clearance-fitted with the filter mesh scraper (260) when moving, and dust on the outer surface of the filter mesh portion (222) is scraped.

2. The dust removal device for a vacuum cleaner according to claim 1, characterized in that: The filter assembly (220) comprises a supporting portion (224) located at one end of the filter mesh portion (222) and in abutment contact with one end of the push button assembly (400).

3. The dust removal device for a vacuum cleaner according to claim 2, characterized in that: The push button assembly (400) comprises a push button member, a push rod member (420) movably connected to the push button member, and an elastic member (440) sleeved on the push rod member (420).

4. The dust removal device for a vacuum cleaner according to claim 3, characterized in that: The central axis direction of the cup body (210) is parallel to the movement direction of the push button assembly (400), wherein the radial clearance between the filter screen scraper (260) and the outer surface of the filter screen portion (222) is less than 5 millimeters.

5. The dust removal device for a vacuum cleaner according to claim 2, characterized in that: The filter assembly (220) further comprises a secondary cyclone (280) located downstream of the filter mesh portion (222) and at least partially surrounded by the filter mesh portion (222), and a secondary dust collecting chamber (282) located at one end of the secondary cyclone (280).

6. A vacuum cleaner, characterized in that It comprises a machine body (100), a vacuum cleaner dust removal device (200) connected to the machine body (100), and a motor located inside the machine body (100) and downstream of the vacuum cleaner dust removal device (200), wherein the vacuum cleaner dust removal device (200) is the vacuum cleaner dust removal device according to claim 1.

7. The vacuum cleaner according to claim 6, characterized in that: The body (100) comprises an air inlet pipe (120), a motor housing portion (140) for housing a motor, and a handle portion (160) having one end connected to the motor housing portion (140), wherein the vacuum cleaner dust removal device (200) is connected to and fixed to the air inlet pipe (120) and the motor housing portion (140).

8. The vacuum cleaner according to claim 6, characterized in that: The vacuum cleaner dust removal device (200) further comprises a dust cup scraper (270) which abuts against the other end of the push button assembly (400) and can scrape dust from the inner wall of the cup body (210), wherein the radial clearance between the dust cup scraper (270) and the inner wall of the cup body is less than 5 millimetres.

9. The vacuum cleaner according to claim 6, characterized in that: The filter screen scraper (260) comprises an annular wall (261), a scraper ring (262) extending from the bottom of the annular wall (261) and made of soft material and hollow, a central cavity (263) at least partially surrounded by the annular wall (261), and a sealing ring (264) integrally formed with the scraper ring (262) and located outside the annular wall (261); the filter assembly (220) comprises a filter wall body (223) integrally formed and located above the filter screen portion (222), and a supporting portion (224) located at one end of the filter screen portion (222), wherein the supporting portion (224) is provided with a radial section (227) extending radially from the filter wall body (223) and in contact with one end of the push button assembly (400).

10. The vacuum cleaner according to claim 9, characterized in that: The filter screen scraper (260) comprises an opening (265) for spacing the two ends of the annular wall (261) and communicating with the central cavity (263), and a guide section (266) extending from the bottom of the annular wall (261) and located outside the scraper ring (262), wherein the radial section (227) passes through the opening (265) and is at least partially exposed outside the cup body (210), and is in abutment with one end of the push button assembly (400).

11. The vacuum cleaner according to claim 9, characterized in that: The dust cup scraper (270) is fixedly arranged at the lower end of the cup body (210) and is away from the cup body top cover (230) and close to the cup body bottom cover (240), and comprises a hollow truncated cone ring (272), a dust cup scraper cavity (274) surrounded by the truncated cone ring (272), a sealing member (276) integrally formed on the truncated cone ring (272), and a lug (278) integrally formed on the truncated cone ring (272), wherein the lug (278) is provided with a sealing extension section integrally formed with the sealing member (276).

12. The vacuum cleaner according to claim 9, characterized in that: The filter assembly (220) comprises a filter wall body (223) formed in one piece and located above the filter mesh portion (222), a support portion (224) located at one end of the filter mesh portion (222) and in contact with one end of the push button assembly (400), a secondary cyclone (280) located downstream of the filter mesh portion (222) and at least partially surrounded by the filter mesh portion (222), and a secondary dust collecting chamber (282) located at one end of the secondary cyclone (280), wherein the support portion (224) is located between the filter mesh portion (222) and the filter wall body (223) and isolates the air paths of the two, and the support portion (224) is provided with a radial section (227) extending radially from the filter wall body (223), and a plurality of circumferentially arranged perforations (228).

13. The vacuum cleaner according to claim 9, characterized in that: The push button assembly (400) comprises a push button member, a push rod member (420) connected to the push button member, and a push rod elastic member (440) sleeved on the push rod member (420), wherein the push button member comprises a push button (402), a push button body (404) integrally formed with the push button (402) on one side and extending axially, and a push button block (406) integrally formed with the other side of the push button body (404).

14. A method, applied to the vacuum cleaner according to claim 8, characterized in that It includes the following steps: Step S1: pushing the push button assembly (400) in a first direction to move the filter assembly (220), and then proceeding to step S2; Step S2: The dust on the outer surface of the filter screen portion (222) is then scraped by the stationary filter screen scraper (260) until it is completely scraped.

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