A dusting mechanism for a vacuum cleaner

The spiral cleaning kit rotates between the dust cup and the filter cylinder, while the cleaning brush strips simultaneously clean both the filter cylinder and the dust cup, solving the problem of insufficient dust cup cleaning in existing technologies and improving cleaning effect and space utilization.

CN224483880UActive Publication Date: 2026-07-14NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DECHANG ELECTRICAL MACHINERY MFG CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The cleaning mechanism of existing vacuum cleaner filtration systems can only clean the filter cylinder, and cannot effectively clean the surface of the dust cup.

Method used

A spiral cleaning kit was designed. A rotating drive structure drives the spiral cleaning kit to rotate between the dust cup and the filter cylinder. The cleaning brush strip scrapes over the filter cylinder and the dust cup in the spiral motion, achieving simultaneous cleaning.

Benefits of technology

It enables simultaneous cleaning of the filter cylinder and dust cup, improving the cleaning effect and increasing the space utilization rate inside the dust cup.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224483880U_ABST
    Figure CN224483880U_ABST
Patent Text Reader

Abstract

The utility model discloses a dust catcher dusting mechanism. It includes: the organism, is provided with the dust cup and filter screen cylinder on the organism, and the filter screen cylinder is located the inside center position of dust cup, spiral cleaning suite, spiral cleaning suite is sleeved and is connected with its movably on filter screen cylinder, spiral guide piece, spiral guide piece sets up between the inner wall of dust cup and the outer wall of spiral cleaning suite, and spiral cleaning suite realizes spiral rotation between dust cup and filter screen cylinder under the direction of spiral guide piece, cleaning brush strip, cleaning brush strip is fixed on spiral cleaning suite, and one side of cleaning brush strip and filter screen cylinder contact, and the other side of cleaning brush strip and dust cup contact. The utility model has the beneficial effects that: spiral cleaning suite and the cleaning brush strip on it realize spiral formula and rotate upward between dust cup and filter screen cylinder, thereby reach the purpose of cleaning filter screen cylinder and dust cup simultaneously, improve the space utilization rate in dust cup interior.
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Description

Technical Field

[0001] This utility model relates to the technical field of vacuum cleaners, and in particular to a dust removal mechanism for a vacuum cleaner. Background Technology

[0002] Vacuum cleaners typically consist of multiple functional units, including an airflow generating unit, a filtration unit, and a dust collection unit. After the airflow generating unit draws in air, the air carrying dirt is filtered by the filtration unit, allowing the filtered air to be discharged back into the atmosphere, while the dust and other debris generated during filtration remain in the vacuum cleaner.

[0003] When using a vacuum cleaner, dust and other solid debris easily accumulate on the filter cylinder and dust cup, leading to a decrease in filtration efficiency. Currently, convenient cleaning of vacuum cleaners mainly relies on a dust removal mechanism within the filter system, a dust collection station, or a combination of both. Regarding dust removal via the filter system cleaning mechanism, UK Patent Publication No. GB2620160B, published on December 11, 2024, discloses a Dirt seperator. This patent utilizes the axial movement of the filter system cleaning mechanism to remove dust from the filter cylinder. The drawback of this patent is that the filter system cleaning mechanism can only clean the filter cylinder; the surface of the dust cup remains uncleaned.

[0004] In summary, there is a need for a vacuum cleaner dust removal mechanism that can clean both the filter cylinder and the dust cup simultaneously. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing technologies that can only clean the filter cylinder and cannot clean the surface of the dust cup, and provides a dust removal mechanism for vacuum cleaners that can clean both the filter cylinder and the dust cup at the same time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A dust removal mechanism for a vacuum cleaner includes:

[0008] The machine body is equipped with a dust cup and a filter cylinder, with the filter cylinder located at the center of the inner side of the dust cup;

[0009] A spiral cleaning kit, which is fitted onto and movably connected to a filter cylinder;

[0010] A spiral guide is disposed between the inner wall of the dust cup and the outer wall of the spiral cleaning kit. Under the guidance of the spiral guide, the spiral cleaning kit rotates spirally between the dust cup and the filter cylinder.

[0011] A cleaning brush strip is fixed to a spiral cleaning kit, with one side of the cleaning brush strip in contact with the filter cylinder and the other side of the cleaning brush strip in contact with the dust cup;

[0012] A rotary drive structure is mounted on the machine body and connected to the spiral cleaning kit.

[0013] During cleaning, a rotary drive structure propels the spiral cleaning kit, which, guided by a spiral guide, rotates upwards in a spiral motion between the dust cup and the filter cylinder. As the spiral cleaning kit moves, one side (inner side) of the cleaning brush scrapes across the filter cylinder, while the other side (outer side) sweeps across the dust cup, thus simultaneously cleaning both the filter cylinder and the dust cup, improving cleaning efficiency. Furthermore, the centered design of the spiral cleaning kit between the dust cup and the filter cylinder maximizes the utilization of space within the dust cup.

[0014] Preferably, the main body includes a housing, with the dust cup and filter cartridge both fixed to the outer surface of the housing. The rotary drive structure includes a push rod disposed inside the housing. A push rod clearance hole is provided on the housing, located between the dust cup and the filter cartridge. The push rod passes through the clearance hole and connects to the spiral cleaning kit. The user can control the spiral cleaning kit to rotate spirally upwards between the dust cup and the filter cartridge using the push rod. The structure is simple and easy to control.

[0015] Preferably, the spiral cleaning kit has an arc-shaped groove at one end near the housing, with the center of the groove located on the geometric center line of the filter cylinder. An arc-shaped inclined surface is provided at the bottom of the groove, gradually tilting towards the opening of the groove from one end to the other. One end of the push rod extends into the arc-shaped groove and rests on the inclined surface, while the other end is fixed with a rotating push button. A push button guide hole is provided on the surface of the housing, and the rotating push button is mounted on and movably connected to it. The plane of the push button guide hole is perpendicular to the geometric center line of the filter cylinder. When the rotating push button is pushed from one end of the guide hole to the other, the push rod also moves from one end of the inclined surface to the other. In standby mode, the push rod is located at one end of the inclined surface (i.e., the deepest part of the arc-shaped groove), while the rotating push button is located at one end of the guide hole. During cleaning, the user pushes the rotary knob from one end of the knob's movable guide hole to the other. Since the push rod is fixedly connected to the rotary knob, the push rod will also move from one end of the arc-shaped propulsion ramp to the other end. At this time, under the guidance of the arc-shaped propulsion ramp, the push rod will push the entire spiral cleaning kit to rotate spirally upward between the dust cup and the filter cylinder along the spiral guide. During the movement of the spiral cleaning kit, one side (inner side) of the cleaning brush strip scrapes across the filter cylinder, and the other side (outer side) of the cleaning brush strip sweeps across the dust cup, thereby achieving the purpose of cleaning both the filter cylinder and the dust cup at the same time, improving the cleaning effect.

[0016] Preferably, the spiral guide includes a spiral trajectory rib fixed to the inner wall of the dust cup. A guide protrusion, in contact with the spiral trajectory rib, is fixed to the outer wall of the spiral cleaning kit, positioned on the side of the spiral trajectory rib closer to the rotary drive structure. When the push rod pushes the entire spiral cleaning kit forward, the guide protrusion on the spiral cleaning kit moves spirally upward along the spiral trajectory rib on the inner wall of the dust cup. This causes the spiral cleaning kit and cleaning brush to rotate spirally upward between the dust cup and the filter cylinder. During the movement of the spiral cleaning kit, one side (inner side) of the cleaning brush scrapes across the filter cylinder, while the other side (outer side) sweeps across the dust cup, thus achieving simultaneous cleaning of both the filter cylinder and the dust cup, improving the cleaning effect.

[0017] Preferably, a vacuum fan is installed inside the housing, and the interior of the filter cylinder is connected to the interior of the housing. The vacuum fan generates suction to draw in external debris, and the air carrying the debris is filtered through the filter cylinder, allowing the filtered air to be discharged back into the atmosphere, while the debris remains in the dust cup.

[0018] The beneficial effects of this utility model are: the spiral cleaning kit and its cleaning brush strips rotate spirally upward between the dust cup and the filter cylinder, one side (inner side) of the cleaning brush strips scrapes across the filter cylinder, and the other side (outer side) of the cleaning brush strips sweeps across the dust cup, thereby achieving the purpose of cleaning the filter cylinder and the dust cup at the same time, improving the cleaning effect; improving the space utilization rate inside the dust cup; and having a simple structure and convenient control. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is an exploded view of this utility model;

[0021] Figure 3 This is a front view of the present invention;

[0022] Figure 4 yes Figure 3 Sectional view at point AA;

[0023] Figure 5 , Figure 6 and Figure 7 This is a schematic diagram of the spiral cleaning kit in standby mode;

[0024] Figure 8 , Figure 9 and Figure 10 This is a schematic diagram of the spiral cleaning kit after cleaning is completed.

[0025] In the diagram: 1. Dust cup, 2. Filter cylinder, 3. Cleaning brush strip, 4. Housing, 5. Push rod, 6. Arc-shaped swirl groove, 7. Arc-shaped propulsion ramp, 8. Rotary push button, 9. Push button movable guide hole, 10. Spiral trajectory rib, 11. Guide protrusion, 12. Vacuum fan, 13. Spiral cleaning kit. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-4 In the embodiments described above, a dust removal mechanism for a vacuum cleaner includes:

[0028] The main body is equipped with a dust cup 1 and a filter cylinder 2, with the filter cylinder 2 located at the center of the inner side of the dust cup 1.

[0029] Spiral cleaning kit, which is fitted onto and movably connected to filter cylinder 2;

[0030] A spiral guide is provided between the inner wall of the dust cup 1 and the outer wall of the spiral cleaning kit. Under the guidance of the spiral guide, the spiral cleaning kit rotates spirally between the dust cup 1 and the filter cylinder 2.

[0031] Cleaning brush 3 is fixed on the spiral cleaning kit. One side of the cleaning brush 3 is in contact with the filter cylinder 2, and the other side of the cleaning brush 3 is in contact with the dust cup 1.

[0032] A rotary drive structure is mounted on the machine body and connected to the spiral cleaning kit.

[0033] The main body includes a housing 4, a dust cup 1 and a filter cylinder 2, all of which are fixed on the outer surface of the housing 4. The rotary drive structure includes a push rod 5, which is located inside the housing 4. The housing 4 is provided with a push rod clearance hole, which is located between the dust cup 1 and the filter cylinder 2. The push rod 5 passes through the push rod clearance hole and is connected to the spiral cleaning kit.

[0034] The spiral cleaning kit has an arc-shaped groove 6 near one end of the housing 4. The center of the arc-shaped groove 6 is located on the geometric center line of the filter cylinder 2. An arc-shaped pushing slope 7 is provided at the bottom of the arc-shaped groove 6. The arc-shaped pushing slope 7 gradually slopes towards the opening of the arc-shaped groove 6 from one end to the other. One end of the push rod 5 extends into the arc-shaped groove 6 and is placed on the arc-shaped pushing slope 7. The other end of the push rod 5 is fixed with a rotating push button 8. The surface of the housing 4 is provided with a push button movable guide hole 9. The rotating push button 8 is installed on the push button movable guide hole 9 and is movably connected to it. The plane where the push button movable guide hole 9 is located is perpendicular to the geometric center line of the filter cylinder 2. When the rotating push button 8 is pushed from one end of the push button movable guide hole 9 to the other end, the push rod 5 also moves from one end of the arc-shaped pushing slope 7 to the other end.

[0035] The spiral guide includes a spiral track rib 10, which is fixed to the inner wall of the dust cup 1. A guide protrusion 11 that contacts the spiral track rib 10 is fixed on the outer wall of the spiral cleaning kit. The guide protrusion 11 is located on the side of the spiral track rib 10 close to the rotation drive structure.

[0036] The inside of the housing 4 is equipped with a dust extraction fan 12, and the inside of the filter cylinder 2 is connected to the inside of the housing 4.

[0037] like Figures 5-7 As shown, when the spiral cleaning kit 13 is in standby mode, the push rod 5 is located at one end of the arc-shaped propulsion slope 7 (i.e., the deepest position of the arc-shaped spiral groove 6), while the rotating push button 8 is located at one end of the push button movable guide hole 9.

[0038] During cleaning, the user pushes the rotary push button 8 from one end of the push button movable guide hole 9 to the other end. Since the push rod 5 is fixedly connected to the rotary push button 8, the push rod 5 will also move from one end of the arc-shaped push slope 7 to the other end. At this time, under the guidance of the arc-shaped push slope 7, the push rod 5 will push the entire spiral cleaning kit 13 to rotate spirally upward between the dust cup 1 and the filter cylinder 2 along the spiral guide. (When the push rod 5 pushes the entire spiral cleaning kit 13, the guide protrusion 11 on the spiral cleaning kit 13 will move spirally upward along the spiral trajectory rib 10 on the inner wall of the dust cup 1, thereby driving the spiral cleaning kit 13 and the cleaning brush 3 to rotate spirally upward between the dust cup 1 and the filter cylinder 2.) During the spiral rotation of the spiral cleaning kit 13, one side (inner side) of the cleaning brush 3 scrapes across the filter cylinder 2, and the other side (outer side) of the cleaning brush 3 sweeps across the dust cup 1, thereby achieving the purpose of cleaning the filter cylinder 2 and the dust cup 1 at the same time. The finished cleaning state of the Spiral Cleaning Kit 13 is as follows Figures 8-10 As shown.

Claims

1. A dust-removing mechanism for a vacuum cleaner, characterized in that it comprises: The machine body is provided with a dust cup (1) and a filter cylinder (2), and the filter cylinder (2) is located at the center of the inner side of the dust cup (1); Spiral cleaning kit (13), which is fitted onto and movably connected to the filter cylinder (2); A spiral guide is provided between the inner wall of the dust cup (1) and the outer wall of the spiral cleaning kit (13). The spiral cleaning kit (13) rotates spirally between the dust cup (1) and the filter cylinder (2) under the guidance of the spiral guide. Cleaning brush (3), the cleaning brush (3) is fixed on the spiral cleaning kit (13), one side of the cleaning brush (3) is in contact with the filter cylinder (2), and the other side of the cleaning brush (3) is in contact with the dust cup (1); A rotary drive structure is mounted on the body and connected to the spiral cleaning kit (13).

2. The dust-removing mechanism for a vacuum cleaner according to claim 1, characterized in that, The body includes a housing (4), the dust cup (1) and the filter cylinder (2) are fixed on the outer surface of the housing (4), the rotary drive structure includes a push rod (5), the push rod (5) is disposed on the inner side of the housing (4), the housing (4) is provided with a push rod clearance hole, the push rod clearance hole is located between the dust cup (1) and the filter cylinder (2), the push rod (5) passes through the push rod clearance hole and is connected to the spiral cleaning kit (13).

3. The dust-removing mechanism for a vacuum cleaner according to claim 2, characterized in that, The spiral cleaning kit (13) has an arc-shaped groove (6) at one end near the housing (4). The center of the arc-shaped groove (6) is located on the geometric center line of the filter cylinder (2). An arc-shaped pushing slope (7) is provided at the bottom of the arc-shaped groove (6). The arc-shaped pushing slope (7) gradually slopes towards the opening of the arc-shaped groove (6) from one end to the other. One end of the push rod (5) extends into the arc-shaped groove (6) and is placed on the arc-shaped pushing slope (7). The other end is fixed with a rotary push button (8). The surface of the housing (4) is provided with a push button movable guide hole (9). The rotary push button (8) is installed on the push button movable guide hole (9) and is movably connected to it. The plane where the push button movable guide hole (9) is located is perpendicular to the geometric center line of the filter screen cylinder (2). When the rotary push button (8) is pushed from one end of the push button movable guide hole (9) to the other end, the push rod (5) also moves from one end of the arc-shaped push slope (7) to the other end.

4. The dust-removing mechanism for a vacuum cleaner according to claim 3, characterized in that, The spiral guide includes a spiral track rib (10), which is fixed on the inner wall of the dust cup (1). The outer wall of the spiral cleaning kit (13) is fixed with a guide protrusion (11) that contacts the spiral track rib (10). The guide protrusion (11) is located on the side of the spiral track rib (10) near the rotation drive structure.

5. A dust-removing mechanism for a vacuum cleaner according to any one of claims 2-4, characterized in that, The housing (4) is equipped with a dust extraction fan (12), and the interior of the filter cylinder (2) is connected to the interior of the housing (4).