Self-cleaning type air purifying and filtering device
By combining a motor-driven cleaning mechanism and a vacuum pump adsorption mechanism with a detachable dust collection box design, the problem of insufficient self-cleaning in traditional air filtration devices is solved, achieving automatic cleaning of the filter cartridge and efficient filtration, reducing maintenance difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI SHANQINGSHAN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-05-15
- Publication Date
- 2026-04-24
AI Technical Summary
Traditional air filtration devices lack effective self-cleaning functions, leading to the accumulation of pollutants on the surface of the filter media, reducing filtration efficiency, increasing maintenance costs and labor intensity, and frequent replacement of filter components will generate waste and health risks.
The system employs a motor-driven cleaning mechanism and a vacuum pump adsorption mechanism. It uses a brush to clean the inner wall of the filter cartridge and promptly removes contaminants. Combined with a detachable dust collection box, it enables automatic cleaning and convenient maintenance of the filter cartridge.
Ensure that the filter cartridges always maintain high-efficiency filtration performance, extend service life, reduce maintenance frequency and costs, provide clean air, and meet the purification needs of different environments.
Smart Images

Figure CN224156578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification technology, specifically a self-cleaning air purification filter device. Background Technology
[0002] With the acceleration of industrialization and the increasing severity of environmental pollution, air purification equipment is being used more and more widely in industrial production, public spaces, and homes. Traditional air filtration devices mostly rely on physical interception and adsorption, using filter media such as filter cartridges and screens to purify particulate matter and harmful gases in the air. However, in actual use, these filter media continuously trap pollutants, causing a large amount of dust and impurities to accumulate on their surfaces. This not only reduces filtration efficiency but also increases airflow resistance, thus affecting the normal operation of the equipment.
[0003] Currently, many air filtration devices lack effective self-cleaning capabilities, requiring regular manual disassembly, cleaning, or replacement of filter components. This not only increases maintenance costs and labor intensity but also poses a risk of contaminant leakage during disassembly, threatening the health of operators. Furthermore, frequent filter replacements generate substantial waste, which is environmentally unfriendly. In addition, some self-cleaning filters are not ideal in their cleaning performance, failing to completely remove contaminants from the filter media and thus failing to meet the ever-increasing demands for air purification. Therefore, developing an air filtration device that is highly efficient in self-cleaning, easy to maintain, and provides excellent filtration performance is of significant practical importance. Utility Model Content
[0004] In view of the problems existing in the prior art, this utility model discloses a self-cleaning air purification filter device. The technical solution adopted is as follows: it includes a housing, a control module is fixedly installed on the top of the housing, a filter cartridge is fixedly installed inside the housing, an air inlet on the top of the housing is connected to one end of an air inlet pipe, the air inlet pipe communicates with the interior of the filter cartridge, an air outlet on the side of the housing is connected to one end of an air outlet pipe, and a cleaning mechanism and an adsorption mechanism are installed on the housing.
[0005] The cleaning mechanism includes a drive gear, a motor, a transmission gear, a rotating rod, a fixed rod, a support plate, and brushes. The lower end of the rotating rod is rotatably connected to the middle of the bottom of the housing, and the upper end of the rotating rod extends to the outside through a through hole in the top of the housing. The side of the upper end of the rotating rod is fixedly connected to the inner side of the transmission gear. The motor is fixedly installed on the top of the housing, and the output shaft of the motor is fixedly connected to the middle of the end face of the drive gear. The drive gear meshes with the transmission gear. Several fixed rods are fixedly installed on the side of the rotating rod. One end of the fixed rod is fixedly connected to the side of the support plate. A row of brushes is fixedly installed on the other side of the support plate. The brushes contact the inner wall of the filter cartridge. The interiors of the rotating rod, the fixed rod, and the support plate are all hollow and interconnected.
[0006] The adsorption mechanism includes an air suction pipe, a connecting pipe, a dust filter box, a vacuum pump, a rotary joint, and a dust collection hopper. The rotary joint is fixedly installed on the top of the rotating rod and connects to the interior of the rotating rod. The dust filter box is fixedly installed on the top of the housing. The vacuum pump is fixedly installed on the side of the housing. One end of the air suction pipe is connected to the rotary joint, and the other end is connected to the air inlet on the top of the dust filter box. The air outlet on the side of the dust filter box is connected to the air inlet on the vacuum pump. The dust collection hopper is fixedly installed on the side of the support plate and is located outside the brush. The dust collection hopper connects to the interior of the support plate and has a notch facing the direction of brush rotation. The motor and vacuum pump are electrically connected to the control module.
[0007] As a preferred technical solution of this utility model, the dust filter box includes a box body, a fixing plate, a support frame, a dust filter bag and a sealing plate. A U-shaped fixing plate is fixedly installed inside the box body, the support frame is inserted into the fixing plate, and a dust filter bag is fixedly installed at the bottom of the support frame. The sealing plate is detachably installed at the opening on one side of the box body.
[0008] In a preferred embodiment of this invention, a magnetic ring is fixedly installed in a groove on the side of the box opening, and an iron ring that mates with the magnetic ring is fixedly installed in a groove on the side of the sealing plate. In another preferred embodiment, a rubber pad is fixedly installed on the side of the sealing plate, and the rubber pad mates with the side of the box.
[0009] As a preferred embodiment of this utility model, a U-shaped handle is fixedly installed on the side of the sealing plate.
[0010] The beneficial effects of this utility model are:
[0011] 1. This utility model uses a motor to drive a drive gear, which in turn rotates the transmission gear and rotating rod. This allows the brush fixed on the rotating rod to thoroughly clean the inner wall of the filter cartridge, removing dust and impurities adhering to it. Simultaneously, the vacuum pump in the adsorption mechanism uses a dust collection hopper to promptly remove the brushed-off contaminants, preventing them from re-entraining within the casing. This ensures the filter cartridge maintains excellent filtration performance, effectively extending its lifespan and reducing the frequency and cost of manual maintenance. The continuous and effective self-cleaning function ensures the filter cartridge remains in a high-efficiency filtration state, preventing filtration efficiency reduction and increased airflow resistance caused by filter clogging. This provides users with cleaner, fresher air, meeting air purification needs in various environments, and has promising application prospects and market value.
[0012] 2. The dust filter box adopts a detachable sealing plate design. The sealing plate can be quickly installed and removed through the cooperation of magnetic rings and iron rings. At the same time, the rubber gasket ensures the airtightness of the dust filter box. When the dust filter bag needs to be cleaned or replaced, the operator only needs to pull the handle to open the sealing plate, and easily and quickly take out the support frame and dust filter bag, which greatly reduces the difficulty of maintenance and improves work efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0015] Figure 3 This is a schematic cross-sectional view of the present invention.
[0016] Figure 4 This is a schematic diagram of the dust collection bucket structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the filter box structure of this utility model;
[0018] Figure 6 This is a schematic diagram of the dust filter bag being pulled out according to this utility model;
[0019] Figure 7 This is a partially enlarged structural diagram of part A of this utility model.
[0020] In the diagram: 1. Housing, 2. Control module, 3. Inlet pipe, 4. Outlet pipe, 5. Filter cartridge, 6. Cleaning mechanism, 61. Drive gear, 62. Motor, 63. Transmission gear, 64. Rotating rod, 65. Fixing rod, 66. Support plate, 67. Brush, 7. Adsorption mechanism, 71. Suction pipe, 72. Connecting pipe, 73. Dust filter box, 731, 732. Support plate, 733. Support frame, 734. Dust filter bag, 735. Sealing plate, 74. Vacuum pump, 75. Rotary joint, 76. Dust collection hopper, 8. Magnetic ring, 9. Iron ring, 10. Rubber pad, 11. Handle. Detailed Implementation
[0021] Example 1
[0022] like Figures 1 to 7 As shown, this utility model discloses a self-cleaning air purification filter device. The technical solution adopted is as follows: it includes a housing 1, a control module 2 is fixedly installed on the top of the housing 1, a filter cartridge 5 is fixedly installed inside the housing 1, the air inlet on the top of the housing 1 is connected to one end of the air inlet pipe 3, the air inlet pipe 3 communicates with the inside of the filter cartridge 5, the air outlet on the side of the housing 1 is connected to one end of the air outlet pipe 4, and a cleaning mechanism 6 and an adsorption mechanism 7 are installed on the housing 1.
[0023] The cleaning mechanism 6 includes a drive gear 61, a motor 62, a transmission gear 63, a rotating rod 64, a fixed rod 65, a support plate 66, and a brush 67. The lower end of the rotating rod 64 is rotatably connected to the middle of the bottom of the housing 1, and the upper end of the rotating rod 64 extends to the outside through a through hole in the top of the housing 1. The side of the upper end of the rotating rod 64 is fixedly connected to the inner side of the transmission gear 63. The motor 62 is fixedly mounted on the top of the housing 1, and the output shaft of the motor 62 is fixedly connected to the middle of the end face of the drive gear 61. The drive gear 61 meshes with the transmission gear 63, and the side of the rotating rod 64 is fixedly mounted with a brush 67. Several fixed rods 65 are installed. One end of the fixed rod 65 is fixedly connected to the side of the support plate 66. A row of brushes 67 is fixedly installed on the other side of the support plate 66. The brushes 67 are in contact with the inner wall of the filter cartridge 5. The interiors of the rotating rod 64, the fixed rod 65 and the support plate 66 are hollow and interconnected. The motor 62 drives the drive gear 61 to rotate, which in turn drives the transmission gear 63 and the rotating rod 64 to rotate. This allows the brushes 67 fixed on the rotating rod 64 to thoroughly clean the inner wall of the filter cartridge 5 and brush off the dust and impurities attached to the filter cartridge 5.
[0024] The adsorption mechanism 7 includes an air suction pipe 71, a connecting pipe 72, a dust filter box 73, a vacuum pump 74, a rotary joint 75, and a dust collection hopper 76. The rotary joint 75 is fixedly installed on the top of the rotating rod 64 and connects to the interior of the rotating rod 64. The dust filter box 73 is fixedly installed on the top of the housing 1, and the vacuum pump 74 is fixedly installed on the side of the housing 1. One end of the air suction pipe 71 is connected to the rotary joint 75, and the other end is connected to the air inlet on the top of the dust filter box 73. The air outlet on the side of the dust filter box 73 is connected to the air inlet on the vacuum pump 74. The dust filter box 73 includes a box body 731, a fixing plate 732, a support frame 733, a dust filter bag 734, and a sealing plate. 735, a U-shaped fixing plate 732 is fixedly installed inside the housing 731. A support frame 733 is inserted into the fixing plate 732. A dust filter bag 734 is fixedly installed at the bottom of the support frame 733. A sealing plate 735 is detachably installed at the opening on one side of the housing 731. A magnetic ring 8 is fixedly installed in the groove on the side of the opening of the housing 731. An iron ring 9 that mates with the magnetic ring 8 is fixedly installed in the groove on the side of the sealing plate 735. A rubber pad 10 is fixedly installed on the side of the sealing plate 735, and the rubber pad 10 mates with the side of the housing 731. A U-shaped handle 11 is fixedly installed on the side of the sealing plate 735. The dust filter box 73 adopts... The removable sealing plate 735 design allows for quick installation and removal via the cooperation of the magnetic ring 8 and the iron ring 9. Meanwhile, the rubber gasket 10 ensures the sealing of the dust filter box 73. When the dust filter bag 734 needs cleaning or replacement, the operator only needs to gently pull the handle 11 to open the sealing plate 735, allowing for convenient and quick removal of the support frame 733 and the dust filter bag 734, greatly reducing maintenance difficulty and improving work efficiency. The dust collection hopper 76 is fixedly installed on the side of the support plate 66, located outside the brush 67, and connected to the interior of the support plate 66. The dust collection hopper 76 faces the direction of rotation of the brush 66. With an opening, the motor 62 and vacuum pump 74 are electrically connected to the control module 2. The vacuum pump 74 uses the dust collection bucket 76 to promptly remove the pollutants brushed off, preventing them from flying back into the housing 1. This ensures that the filter cartridge 5 always maintains good filtration performance, effectively extending the service life of the filter cartridge 5, reducing the frequency and cost of manual maintenance. The continuous and effective self-cleaning function ensures that the filter cartridge 5 is always in a high-efficiency filtration state, avoiding problems such as decreased filtration efficiency and increased airflow resistance caused by filter cartridge 5 clogging. This provides users with cleaner and fresher air, meeting the air purification needs of different environments, and has good application prospects and market value.
[0025] The working principle of this invention is as follows: During the air filtration process, polluted air enters the filter cartridge 5 from the air inlet at the top of the housing 1 through the air inlet pipe 3. The filter cartridge 5 filters particulate matter and impurities in the air, and the purified air is discharged through the air outlet on the side of the housing 1 through the air outlet pipe 4.
[0026] When self-cleaning is required, control module 2 starts motor 62 and vacuum pump 74. The output shaft of motor 62 drives drive gear 61 to rotate. Drive gear 61 meshes with transmission gear 63, thereby causing transmission gear 63 to drive rotating rod 64 to rotate. Fixed rod 65 and support plate 66 fixed on rotating rod 64 rotate accordingly. Brush 67 on the side of support plate 66 cleans the inner wall of filter cartridge 5 during rotation, brushing off dust and impurities adhering to the inner wall of filter cartridge 5.
[0027] At the same time, the vacuum pump 74 starts to generate suction, which creates a negative pressure inside the rotating rod 64, the fixed rod 65, and the support plate 66 through the dust filter box 73, the suction pipe 71, and the rotary joint 75. The dust collection hopper 76 is located outside the brush 67 and is connected to the inside of the support plate 66. The notch opened in the direction of rotation of the brush 67 allows the dust and impurities to be quickly sucked into the dust collection hopper 76 when the brush 67 brushes off dust and impurities. The dust then enters the dust filter box 73 through the support plate 66, the fixed rod 65, the rotating rod 64, the rotary joint 75, and the suction pipe 71.
[0028] In the dust filter box 73, pollutants are trapped in the dust filter bag 734, and the purified air enters the vacuum pump 74 through the air outlet on the side of the dust filter box 73, and is finally discharged into the external environment.
[0029] When the dust filter bag 734 needs to be cleaned or replaced, the operator holds the U-shaped handle 11 on the side of the sealing plate 735. Since the iron ring 9 in the groove on the side of the sealing plate 735 cooperates with the magnetic ring 8 in the groove on the side of the opening of the housing 731, the sealing plate 735 can be opened by gently pulling the handle 11 to overcome the magnetic attraction. At this time, the support frame 733 inserted into the fixing plate 732 can be easily removed, allowing for the cleaning or replacement of the dust filter bag 734 at the bottom. After replacement, the support frame 733 is inserted back into the fixing plate 732, and the sealing plate 735 is then installed back into the opening of the housing 731. The magnetic ring 8 and the iron ring 9 facilitate quick installation, while the rubber gasket 10 on the side of the sealing plate 735 ensures the airtightness of the dust filter box 73. In actual use, an air pressure sensor can be installed inside the exhaust pipe 4 to monitor the air pressure at the exhaust end. When the air pressure is below a threshold, the cleaning mechanism 6 and the adsorption mechanism 7 can automatically operate to automatically clean the filter cartridge 5.
[0030] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.
[0031] Components not described in detail in this article are existing technologies.
[0032] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A self-cleaning air purification filter device, characterized in that, Includes a housing (1), a control module (2) is fixedly installed on the top of the housing (1), a filter cartridge (5) is fixedly installed inside the housing (1), the air inlet at the top of the housing (1) is connected to one end of the air inlet pipe (3), the air inlet pipe (3) communicates with the interior of the filter cartridge (5), the air outlet on the side of the housing (1) is connected to one end of the air outlet pipe (4), and a cleaning mechanism (6) and an adsorption mechanism (7) are installed on the housing (1); The cleaning mechanism (6) includes a drive gear (61), a motor (62), a transmission gear (63), a rotating rod (64), a fixed rod (65), a support plate (66), and a brush (67). The lower end of the rotating rod (64) is rotatably connected to the middle of the bottom of the housing (1), and the upper end of the rotating rod (64) extends to the outside through a through hole in the top of the housing (1). The side of the upper end of the rotating rod (64) is fixedly connected to the inner side of the transmission gear (63). The motor (62) is fixedly installed on the top of the housing (1), and the output shaft of the motor (62) is... The rotating rod (64) is fixedly connected to the middle of the end face of the drive gear (61), the drive gear (61) meshes with the transmission gear (63), a number of fixed rods (65) are fixedly installed on the side of the rotating rod (64), one end of the fixed rod (65) is fixedly connected to the side of the support plate (66), a row of brushes (67) is fixedly installed on the other side of the support plate (66), the brushes (67) are in contact with the inner wall of the filter cartridge (5), the interior of the rotating rod (64), the fixed rods (65) and the support plate (66) are all hollow, and the interiors of the three are interconnected; The adsorption mechanism (7) includes an air suction pipe (71), a connecting pipe (72), a dust filter box (73), a vacuum pump (74), a rotary joint (75), and a dust collection hopper (76). The rotary joint (75) is fixedly installed on the top of the rotating rod (64) and communicates with the interior of the rotating rod (64). The dust filter box (73) is fixedly installed on the top of the housing (1). The vacuum pump (74) is fixedly installed on the side of the housing (1). One end of the air suction pipe (71) is connected to the rotary joint (75). One end is connected to the air inlet at the top of the dust filter box (73), and the air outlet on the side of the dust filter box (73) is connected to the air inlet on the vacuum pump (74). The dust collection hopper (76) is fixedly installed on the side of the support plate (66). The dust collection hopper (76) is located outside the brush (67). The dust collection hopper (76) is connected to the interior of the support plate (66). The dust collection hopper (76) has a notch in the direction of rotation of the brush (67). The motor (62) and the vacuum pump (74) are electrically connected to the control module (2).
2. The self-cleaning air purification filter device according to claim 1, characterized in that: The dust filter box (73) includes a box body (731), a fixing plate (732), a support frame (733), a dust filter bag (734), and a sealing plate (735). A U-shaped fixing plate (732) is fixedly installed inside the box body (731). The support frame (733) is inserted into the fixing plate (732). A dust filter bag (734) is fixedly installed at the bottom of the support frame (733). The sealing plate (735) is detachably installed at the opening on one side of the box body (731).
3. The self-cleaning air purification filter device according to claim 2, characterized in that: A magnet ring (8) is fixedly installed in the groove on the side of the opening of the box (731), and an iron ring (9) that cooperates with the magnet ring (8) is fixedly installed in the groove on the side of the sealing plate (735).
4. The self-cleaning air purification filter device according to claim 2, characterized in that: A rubber pad (10) is fixedly installed on the side of the sealing plate (735), and the rubber pad (10) cooperates with the side of the box body (731).
5. The self-cleaning air purification filter device according to claim 2, characterized in that: A U-shaped handle (11) is fixedly installed on the side of the sealing plate (735).