A dust cup grading solid-liquid-gas three-phase separation structure device

By designing an automated filter plate reversal structure, high-pressure airflow is used to blow hair into the separation chamber, solving the filter plate clogging problem and making the vacuum cleaner easy to use.

CN122163111APending Publication Date: 2026-06-09SUZHOU SITU ELECTRIC APPLIANCE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SUZHOU SITU ELECTRIC APPLIANCE CO LTD
Filing Date
2026-04-10
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

In traditional vacuum cleaners, the dust cup has a three-phase separation structure of solid, liquid, and gas. The filter screen is prone to clogging after filtering hair and other particles, requiring frequent manual cleaning and causing inconvenience.

Method used

A three-phase separation structure for solid-liquid-gas separation in the dust cup of a vacuum cleaner was designed. The drive component drives the transmission component to rotate, causing the filter plate and the rotating shaft to reverse. High-pressure airflow is used to blow the hair adhering to the surface of the filter plate into the second separation chamber for collection, thus achieving automatic cleaning.

Benefits of technology

It eliminates the need for frequent manual cleaning of the filter screen, improving ease of use and enabling an automated hair removal process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to the technical field of dust collectors and discloses a dust-collector dust cup hierarchical solid-liquid-gas three-phase separation structure device which comprises a dust cup shell, a first separation chamber is fixedly connected to the inner side of the dust cup shell, a second separation chamber is fixedly connected to the inner side of the first separation chamber, a cover plate is rotationally connected to the upper end of the dust cup shell, hair is pretreated and filtered through a filter screen plate, when the hair filtered on the upper side of the filter screen plate needs to be cleaned, a driving assembly is driven to drive a transmission assembly to operate, the transmission assembly drives a rotating assembly, an extrusion assembly, a connecting assembly, a sealing assembly and an elastic assembly to operate, so that the sealing assembly moves downward and the filter screen plate and the rotating shaft are reversed, so that when the dust collector sucks in gas, the hair adhered to the surface of the filter screen plate is blown into the second separation chamber by the high-pressure airflow to be collected (at this time, solid particles in the second separation chamber have been separated from sewage), the user does not need to manually clean frequently, automatic cleaning can be realized, and the use convenience is improved.
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Description

Technical Field

[0001] This invention relates to the field of vacuum cleaner technology, specifically to a vacuum cleaner dust cup staged solid-liquid-gas three-phase separation structure device. Background Technology

[0002] The dust cup of a vacuum cleaner features a three-phase separation structure that separates solid, liquid, and gas phases. This structure is the core component of wet and dry vacuum cleaners. Through a combination of multi-stage cyclone centrifugation, gravity settling, and physical interception, it gradually separates the inhaled solid (dust, debris), liquid (water, oil), and gas (air) phases within a single dust cup chamber, collecting them separately and finally expelling clean, dry air. This protects the motor and prevents secondary pollution.

[0003] The vacuum cleaner's dust cup features a three-phase separation structure for solids, liquids, and gases. This structure utilizes a tangential air inlet, a guide spiral, a large particle settling chamber, and a baffle plate. The principle is as follows: 1. Dust-laden air and water enter at high speed tangentially, forming an external cyclone. 2. Large particles of debris and a large amount of water, due to their mass, are thrown against the cup wall by centrifugal force and slide down to the bottom primary dust / water collection chamber. 3. The baffle plate prevents water droplets from splashing, achieving initial gas-liquid separation, separating over 80% of large solid particles and free water, thus reducing subsequent load.

[0004] Traditional vacuum cleaners employ a three-phase separation structure for the dust cup, which first pre-filters large particles of debris, such as hair, entering through a filter screen (hair and large particles enter the settling chamber simultaneously, and hair tends to adhere to many particles and wastewater, hindering solid-liquid separation). Other solid particles and wastewater then pass through the filter screen into the settling chamber for separation. However, after filtering hair, excessive hair can clog the filter screen, requiring users to frequently open the cover to clean the surface of the filter screen, making the vacuum cleaner inconvenient to use. Summary of the Invention

[0005] The purpose of this invention is to provide a three-phase separation structure for solid-liquid-gas separation in the dust cup of a vacuum cleaner, which solves the problem that in the existing three-phase separation structure for solid-liquid-gas separation in the dust cup of a vacuum cleaner, after the filter plate filters hair and other substances, too much hair can easily clog the filter plate, requiring the user to frequently open the cover to clean the hair and other substances on the surface of the filter plate, making the use of the vacuum cleaner inconvenient.

[0006] This invention provides the following technical solution: a dust cup three-phase separation structure device for vacuum cleaners, comprising a dust cup shell, a first separation chamber fixedly connected to the inner side of the dust cup shell, and a second separation chamber fixedly connected to the inner side of the first separation chamber, a cover plate rotatably connected to the upper end of the dust cup shell, and an inlet at one end of the cover plate, a pull handle fixedly connected to the upper end of the cover plate, and a mounting shell fixedly connected to the inner side of the upper end of the dust cup shell, a filter plate inserted into the inner side of the mounting shell, and a rotating shaft fixedly connected inside the filter plate, one end of the rotating shaft rotatably connected to the mounting shell, and a rotating component disposed through the mounting shell at the other end of the rotating shaft, a transmission component disposed at the end of the rotating component away from the rotating shaft, a drive component disposed at the end of the transmission component away from the rotating component, a compression component disposed below the transmission component, a connecting component disposed below the compression component, a sealing component disposed above one end of the connecting component, and an elastic component disposed below the end of the connecting component away from the sealing component.

[0007] The above technical solution pre-filters hair using a filter plate. When the hair filtered from the upper part of the filter plate needs to be cleaned later, the drive component drives the transmission component to operate. The transmission component drives the rotating component, squeezing component, connecting component, sealing component, and elastic component to operate. This causes the sealing component to move down while the filter plate and the rotating shaft reverse. When the vacuum cleaner draws in air, the high-pressure airflow blows the hair adhering to the surface of the filter plate into the second separation chamber for collection (at this time, the solid particles in the second separation chamber have been separated from the sewage). This eliminates the need for frequent manual cleaning by the user, achieving automatic cleaning and improving ease of use.

[0008] As a preferred embodiment of the above technical solution, the rotating assembly includes a first gear fixedly connected to the end of the rotating shaft away from the filter plate, and the lower end of the first gear meshes with a toothed plate.

[0009] Through the above technical solution, after the toothed plate rotates, it drives the rotating shaft and filter plate to rotate by meshing with the teeth of the first gear.

[0010] As a preferred embodiment of the above technical solution, the transmission assembly includes a gear ring fixedly connected to the lower side of the gear plate, and the end of the gear ring near the mounting housing is rotatably connected to the mounting housing via a flange, while the upper side of the end of the gear ring away from the mounting housing is fixedly connected to a through plate.

[0011] Through the above technical solution, after the second gear rotates, it drives the gear ring and the gear plate to rotate through the meshing of the teeth on the through plate, and the rotation of the gear ring drives the gear plate to rotate.

[0012] As a preferred embodiment of the above technical solution, the two sets of toothed plates are arranged in a mirror image relative to the rotating shaft.

[0013] Through the above technical solution, after the second gear rotates, it drives the gear ring and the gear plate to rotate through the meshing of the teeth on the through plate, and the rotation of the gear ring drives the gear plate to rotate.

[0014] As a preferred embodiment of the above technical solution, the drive assembly includes a micro servo motor fixedly connected to the upper side of one end of the mounting housing, and a transmission rod fixedly connected to the output shaft of the micro servo motor. The lower end of the transmission rod passes through the mounting housing, and a second gear is fixedly connected to the lower end of the transmission rod. One end of the second gear meshes with a through-plate gear.

[0015] Through the above technical solution, after the micro servo motor starts, the output shaft drives the transmission rod and the second gear to rotate. After the second gear rotates, it drives the gear ring and the plate to rotate through the meshing of the teeth of the plate.

[0016] As a preferred embodiment of the above technical solution, the extrusion assembly includes a pressure plate fixedly connected to the lower side of the toothed ring away from the mounting shell, and a positioning plate is provided at one end of the pressure plate.

[0017] Through the above technical solution, the pressure plate moves and squeezes the positioning plate, thereby allowing the positioning plate to push the connecting plate, baffle, connecting ring and sealing gasket downward.

[0018] As a preferred embodiment of the above technical solution, two sets of pressure plates and positioning plates are arranged in a circular array, and the pressure plates and positioning plates are provided with an arc-shaped chamfer at opposite ends.

[0019] Through the above technical solution, the pressure plate moves and squeezes the positioning plate, thereby allowing the positioning plate to push the connecting plate, baffle, connecting ring and sealing gasket downward.

[0020] As a preferred embodiment of the above technical solution, the connecting component includes a connecting plate fixedly connected to the lower end of the positioning plate, and one end of the connecting plate penetrates through the mounting shell. A baffle is fixedly connected to the lower side of one end of the connecting plate, and the inner side of the baffle fits against the inner side of the mounting shell.

[0021] Through the above technical solution, the pressure plate moves and squeezes the positioning plate, thereby allowing the positioning plate to push the connecting plate, baffle, connecting ring and sealing gasket downward.

[0022] As a preferred embodiment of the above technical solution, the sealing assembly includes a connecting ring fixedly connected to the upper side of the connecting plate near the baffle, and a sealing gasket fixedly connected to the upper end of the connecting ring, with the upper side of the sealing gasket fitting against the filter screen.

[0023] The above technical solution uses a connecting ring and a sealing gasket to lock and seal the lower outer end of the filter screen.

[0024] As a preferred embodiment of the above technical solution, the elastic component includes a rod fixedly connected to the lower side of the connecting plate away from the baffle, and a positioning cylinder is sleeved on the outer side of the lower end of the rod. The lower end of the positioning cylinder is fixedly connected to the mounting shell. A spring is sleeved on the outer side of the rod and the positioning cylinder. The upper end of the spring is fixedly connected to the connecting plate, and the lower end of the spring is fixedly connected to the mounting shell.

[0025] With the above technical solution, as the connecting plate moves down, it drives the insertion rod to be inserted into the positioning cylinder to compress the spring. After the pressure plate and the positioning plate are misaligned, the elastic potential energy of the spring pushes the connecting plate and the baffle to reset.

[0026] Compared with the prior art, the beneficial effects of the present invention are: This vacuum cleaner dust cup features a three-phase solid-liquid-gas separation structure. It pre-filters hair using a filter screen. When the hair filtered from the upper part of the filter screen needs to be cleaned, a drive assembly rotates the transmission assembly, which in turn drives a rotating assembly, a squeezing assembly, a connecting assembly, a sealing assembly, and a spring assembly. This causes the sealing assembly to move downwards while simultaneously reversing the filter screen and the rotating shaft. When the vacuum cleaner draws in air, the high-pressure airflow blows the hair adhering to the filter screen surface into the second separation chamber for collection (at this point, the solid particles in the second separation chamber have been separated from the wastewater). This eliminates the need for frequent manual cleaning by the user, achieving automatic cleaning and improving ease of use. Attached Figure Description

[0027] Figure 1 A schematic diagram of a three-phase separation structure for a dust cup of a vacuum cleaner; Figure 2 A schematic cross-sectional view of a dust cup staged solid-liquid-gas three-phase separation structure for a vacuum cleaner. Figure 3 A schematic diagram of the inner structure of the cover plate of a dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner. Figure 4 This is an enlarged schematic diagram of the inner side structure of the first separation chamber of a dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner. Figure 5 A magnified first-view structural diagram of the filter plate of a dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner. Figure 6 A magnified second-view structural diagram of the filter plate of a dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner. Figure 7 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 for Figure 5 Enlarged schematic diagram of the structure at point B.

[0028] In the diagram: 1. Dust cup housing; 11. First separation chamber; 12. Second separation chamber; 13. Cover plate; 14. Inlet; 15. Pull handle; 16. Mounting shell; 21. Filter screen plate; 22. Rotating shaft; 3. Rotating assembly; 31. First gear; 32. Gear plate; 4. Transmission assembly; 41. Gear ring; 42. Through plate; 5. Drive assembly; 51. Micro servo motor; 52. Transmission rod; 53. Second gear; 6. Extrusion assembly; 61. Pressure plate; 62. Positioning plate; 7. Connecting assembly; 71. Connecting plate; 72. Baffle; 8. Sealing assembly; 81. Connecting ring; 82. Sealing gasket; 9. Elastic assembly; 91. Insert rod; 92. Positioning cylinder; 93. Spring. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0030] like Figure 1 - Figure 8 As shown, the present invention provides a technical solution: a three-phase separation structure device for a dust cup of a vacuum cleaner, comprising a dust cup shell 1, a first separation chamber 11 fixedly connected to the inner side of the dust cup shell 1, and a second separation chamber 12 fixedly connected to the inner side of the first separation chamber 11, a cover plate 13 rotatably connected to the upper end of the dust cup shell 1, an inlet 14 opened at one end of the cover plate 13, a handle 15 fixedly connected to the upper end of the cover plate 13, and a mounting shell 16 fixedly connected to the inner side of the upper end of the dust cup shell 1. A filter plate 21 is inserted into the inner side of the mounting shell 16, and a rotating shaft 22 is fixedly connected inside the filter plate 21. One end of the rotating shaft 22 is rotatably connected inside the mounting shell 16, and the other end of the rotating shaft 22 passes through the mounting shell 16 and is provided with a rotating component 3. A transmission component 4 is provided at the end of the rotating component 3 away from the rotating shaft 22, and a drive component 5 is provided at the end of the transmission component 4 away from the rotating component 3. A compression component is provided below the transmission component 4. 6. A connecting component 7 is provided on the lower side of the squeezing component 6, and a sealing component 8 is provided on the upper side of one end of the connecting component 7. An elastic component 9 is provided on the lower side of the connecting component 7 away from the sealing component 8. The hair is pre-filtered by the filter plate 21. When the hair filtered on the upper side of the filter plate 21 needs to be cleaned later, the drive component 5 is driven to drive the transmission component 4 to rotate. The transmission component 4 drives the rotating component 3, squeezing component 6, connecting component 7, sealing component 8 and elastic component 9 to rotate. This causes the sealing component 8 to move down and the filter plate 21 and the rotating shaft 22 to reverse. When the vacuum cleaner draws in air later, the high-pressure airflow blows the hair adhering to the surface of the filter plate 21 into the second separation chamber 12 for collection. At this time, the solid particles in the second separation chamber 12 have been separated from the sewage. The user does not need to clean it frequently, and automatic cleaning can be achieved, thereby improving the convenience of use.

[0031] like Figure 7As shown, the rotating assembly 3 includes a first gear 31 fixedly connected to the end of the rotating shaft 22 away from the filter plate 21, and the lower end of the first gear 31 is engaged with a toothed plate 32. After the toothed plate 32 rotates, it drives the rotating shaft 22 and the filter plate 21 to rotate by meshing with the teeth of the first gear 31.

[0032] like Figure 8 As shown, the transmission assembly 4 includes a gear ring 41 fixedly connected to the lower side of the gear plate 32, and the end of the gear ring 41 near the mounting housing 16 is rotatably connected to the mounting housing 16 via a flange. The upper side of the end of the gear ring 41 away from the mounting housing 16 is fixedly connected to a through plate 42. After the second gear 53 rotates, it drives the gear ring 41 and the through plate 42 to rotate through the meshing of the teeth of the through plate 42. After the gear ring 41 rotates, it drives the gear plate 32 to rotate.

[0033] like Figure 7 As shown, the two sets of toothed plates 32 are mirror images of the rotating shaft 22. After the second gear 53 rotates, it drives the toothed ring 41 and the toothed ring 42 to rotate through the meshing of the teeth of the through plate 42. After the toothed ring 41 rotates, it drives the toothed plate 32 to rotate.

[0034] like Figure 7 As shown, the drive assembly 5 includes a micro servo motor 51 fixedly connected to the upper side of one end of the mounting housing 16, and a transmission rod 52 fixedly connected to the output shaft of the micro servo motor 51. The lower end of the transmission rod 52 passes through the mounting housing 16, and a second gear 53 is fixedly connected to the lower end of the transmission rod 52. One end of the second gear 53 is meshed with the teeth of the through plate 42. After the micro servo motor 51 is started, the output shaft drives the transmission rod 52 and the second gear 53 to rotate. After the second gear 53 rotates, it drives the gear ring 41 and the through plate 42 to rotate through the meshing of the teeth of the through plate 42.

[0035] like Figure 7 As shown, the extrusion assembly 6 includes a pressure plate 61 fixedly connected to the lower side of the toothed ring 41 away from the mounting shell 16, and a positioning plate 62 is provided at one end of the pressure plate 61. After the pressure plate 61 moves, it extrudes the positioning plate 62, thereby causing the positioning plate 62 to push the connecting plate 71, the baffle 72, the connecting ring 81 and the sealing gasket 82 to move downward.

[0036] like Figure 7 As shown, two sets of pressure plates 61 and positioning plates 62 are arranged in a circumferential array, and the pressure plates 61 and positioning plates 62 are provided with arc-shaped chamfers at opposite ends. After the pressure plates 61 move, they squeeze the positioning plates 62, thereby allowing the positioning plates 62 to push the connecting plate 71, baffle 72, connecting ring 81 and sealing gasket 82 downward.

[0037] like Figure 7As shown, the connecting assembly 7 includes a connecting plate 71 fixedly connected to the lower end of the positioning plate 62, and one end of the connecting plate 71 is disposed through the mounting shell 16. A baffle 72 is fixedly connected to the lower side of one end of the connecting plate 71, and the inner side of the baffle 72 is fitted with the inner side of the mounting shell 16. After the pressure plate 61 moves, it squeezes the positioning plate 62, thereby allowing the positioning plate 62 to push the connecting plate 71, the baffle 72, the connecting ring 81 and the sealing gasket 82 to move downward.

[0038] like Figure 7 As shown, the sealing assembly 8 includes a connecting ring 81 fixedly connected to the upper side of the connecting plate 71 near the baffle 72, and a sealing gasket 82 fixedly connected to the upper end of the connecting ring 81. The upper side of the sealing gasket 82 is fitted to the filter screen plate 21, and the lower outer end of the filter screen plate 21 is locked and sealed by the connecting ring 81 and the sealing gasket 82.

[0039] like Figure 7 As shown, the elastic component 9 includes a rod 91 fixedly connected to the lower side of the connecting plate 71 away from the baffle 72, and a positioning cylinder 92 is sleeved on the outer side of the lower end of the rod 91. The lower end of the positioning cylinder 92 is fixedly connected to the mounting shell 16. A spring 93 is sleeved on the outer side of the rod 91 and the positioning cylinder 92. The upper end of the spring 93 is fixedly connected to the connecting plate 71, and the lower end of the spring 93 is fixedly connected to the mounting shell 16. When the connecting plate 71 moves down, it drives the rod 91 to be inserted into the positioning cylinder 92 and compress the spring 93. After the pressure plate 61 and the positioning plate 62 are misaligned, the elastic potential energy of the spring 93 pushes the connecting plate 71 and the baffle 72 to reset.

[0040] Working principle: After the filter screen 21 filters the hair, the filtered wastewater and particulate impurities pass through the filter screen 21 and enter the first separation chamber 11 and the second separation chamber 12 for separation. When it is necessary to clean the hair attached to the surface of the filter screen 21, first turn off the vacuum cleaner, and then start the micro servo motor 51. After the micro servo motor 51 starts, the output shaft drives the transmission rod 52 and the second gear 53 to rotate. After the second gear 53 rotates, it drives the gear ring 41 and the gear ring 42 to rotate through the meshing of the teeth of the through plate 42. After the gear ring 41 rotates, it drives the gear plate 32 to rotate. At the same time, the gear ring 41 drives the pressure plate 61 to rotate and move. After the gear plate 32 rotates, it drives the rotating shaft 22 and the filter screen 21 to rotate through the meshing of the teeth of the first gear 31. At the same time, the pressure plate 61 moves and squeezes the positioning plate 62, thereby allowing the positioning plate 62 to push the connecting plate 71, the baffle 72, and the connecting ring 81. As the sealing gasket 82 moves downward, the connecting ring 81 and the sealing gasket 82 release their locking position on the filter plate 21. Simultaneously, the connecting plate 71 moves downward, causing the insertion rod 91 to be inserted into the positioning cylinder 92. The spring 93 is compressed. At the same time as the connecting ring 81 and the sealing gasket 82 move downward, the filter plate 21 rotates and flips. When the filter plate 21 flips 180 degrees, the toothed plate 32 is misaligned with the first gear 31, and another set of toothed plates 32 moves below the first gear 31. Similarly, the pressure plate 61 and the positioning plate 62 are misaligned, and another set of positioning plates 62 moves below the pressure plate 61. After the pressure plate 61 and the positioning plate 62 are misaligned, the elastic potential energy of the spring 93 pushes the connecting plate 71 and the baffle 72 to reset. Then, the vacuum cleaner is started to blow high-pressure air onto the flipped filter plate 21, blowing off the hair originally attached to the surface of the filter plate 21 and storing it in the second separation chamber 12 for later unified cleaning.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner, comprising a dust cup shell (1), wherein a first separation chamber (11) is fixedly connected to the inner side of the dust cup shell (1), and a second separation chamber (12) is fixedly connected to the inner side of the first separation chamber (11), a cover plate (13) is rotatably connected to the upper end of the dust cup shell (1), and an inlet (14) is opened at one end of the cover plate (13), a pull handle (15) is fixedly connected to the upper end of the cover plate (13), and an mounting shell (16) is fixedly connected to the inner side of the upper end of the dust cup shell (1), characterized in that: A filter plate (21) is inserted inside the mounting shell (16), and a rotating shaft (22) is fixedly connected inside the filter plate (21). One end of the rotating shaft (22) is rotatably connected inside the mounting shell (16), and the other end of the rotating shaft (22) passes through the mounting shell (16) and is provided with a rotating component (3). A transmission component (4) is provided at the end of the rotating component (3) away from the rotating shaft (22). A drive component (5) is provided at the end of the transmission component (4) away from the rotating component (3). A pressing component (6) is provided on the lower side of the transmission component (4). A connecting component (7) is provided on the lower side of the pressing component (6). A sealing component (8) is provided on the upper side of one end of the connecting component (7). An elastic component (9) is provided on the lower side of the end of the connecting component (7) away from the sealing component (8).

2. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The rotating assembly (3) includes a first gear (31) fixedly connected to one end of the rotating shaft (22) away from the filter plate (21), and the lower end of the first gear (31) is engaged with a toothed plate (32).

3. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The transmission assembly (4) includes a toothed ring (41) fixedly connected to the lower side of the toothed plate (32), and the toothed ring (41) is rotatably connected to the mounting shell (16) via a flange at one end near the mounting shell (16), and a through plate (42) is fixedly connected to the upper side of the toothed ring (41) away from the mounting shell (16).

4. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 3, characterized in that: The two sets of toothed plates (32) are mirror images of each other relative to the rotating shaft (22).

5. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The drive assembly (5) includes a micro servo motor (51) fixedly connected to the upper side of one end of the mounting shell (16), and a transmission rod (52) fixedly connected to the output shaft of the micro servo motor (51). The lower end of the transmission rod (52) passes through the mounting shell (16), and a second gear (53) is fixedly connected to the lower end of the transmission rod (52). One end of the second gear (53) meshes with the teeth of the through plate (42).

6. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The extrusion assembly (6) includes a pressure plate (61) fixedly connected to the lower side of the toothed ring (41) away from the mounting shell (16), and a positioning plate (62) is provided at one end of the pressure plate (61).

7. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 6, characterized in that: The two sets of pressure plates (61) and positioning plates (62) are arranged in a circumferential array, and the pressure plates (61) and positioning plates (62) are provided with arc-shaped chamfers at opposite ends.

8. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The connecting component (7) includes a connecting plate (71) fixedly connected to the lower end of the positioning plate (62), and one end of the connecting plate (71) is set through the mounting shell (16). A baffle (72) is fixedly connected to the lower side of one end of the connecting plate (71), and the inner side of the baffle (72) is fitted with the inner side of the mounting shell (16).

9. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The sealing assembly (8) includes a connecting ring (81) fixedly connected to the upper side of the connecting plate (71) near the baffle (72), and a sealing gasket (82) is fixedly connected to the upper end of the connecting ring (81). The upper side of the sealing gasket (82) is fitted to the filter plate (21).

10. The dust cup staged solid-liquid-gas three-phase separation structure device for a vacuum cleaner according to claim 1, characterized in that: The elastic component (9) includes a rod (91) fixedly connected to the lower side of the end of the connecting plate (71) away from the baffle (72), and a positioning cylinder (92) is sleeved on the lower outer side of the rod (91). The lower end of the positioning cylinder (92) is fixedly connected to the mounting shell (16), and a spring (93) is sleeved on the outer side of the rod (91) and the positioning cylinder (92). The upper end of the spring (93) is fixedly connected to the connecting plate (71), and the lower end of the spring (93) is fixedly connected to the mounting shell (16).