An air filter with high efficiency

Through a multi-stage filter structure and an automatic cleaning mechanism, the problem of dust accumulation in air filters is solved, achieving high-efficiency filtration and extending service life.

CN224524281UActive Publication Date: 2026-07-21JIAZHIHE AIR FILTER (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAZHIHE AIR FILTER (SUZHOU) CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing air filters, dust easily accumulates on other filters during the multi-stage filtration process, leading to reduced filtration efficiency, inconvenient cleaning, and affecting the overall service life.

Method used

It adopts a multi-stage filtration structure, including a primary filter, a secondary filter, and a tertiary filter. The filters are separated and cleaned through an electric telescopic rod and a linkage mechanism. Combined with the beating and cleaning of the roller and the arc-shaped fan blades, it ensures that each filter is effectively cleaned.

Benefits of technology

It achieves improved multi-stage filtration, effectively separating particles of different sizes, and extends the filter's lifespan through an automatic cleaning mechanism, thus improving filtration efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224524281U_ABST
    Figure CN224524281U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of air filters with high efficiency, including filter shell, the one end of filter shell is equipped with air inlet, the other end is equipped with air outlet, in the utility model, by the setting of primary filter screen, secondary filter screen and tertiary filter screen, the multi-stage filtration of the air filter is realized, effectively improve the filtering effect, and by the setting of first dust accumulation frame, second dust accumulation frame and third dust accumulation frame, and the cooperation of electric telescopic handle and linkage mechanism, the separation effect of primary filter screen, secondary filter screen and tertiary filter screen is realized, so that the different particle size particulate matter isolated on each filter screen and the separation effect between corresponding filter screen are formed, via the cooperation of motor, drum and arc fan blade, each filter screen and each dust accumulation frame are beaten and knocked, and then the cleaning effect of each filter screen and dust accumulation frame is realized, compared with prior art, the high efficiency effect of air filter is effectively realized.
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Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and in particular to an air filter with high efficiency. Background Technology

[0002] An air filter is a device that uses porous filter materials to capture dust from a gas-solid two-phase flow and purify the gas. It delivers purified air with low dust content into the room to ensure the process requirements of clean rooms and the air cleanliness of general air-conditioned rooms.

[0003] The utility model disclosed in CN222585922U provides a low-resistance high-efficiency air filter, including a housing. An air inlet is located at the left end of the housing, and an air outlet is located at the right end. A groove is located at the left end of the housing, and a pre-filter plate is slidably disposed inside the groove. A cleaning component is located at the left end of the pre-filter plate. A door is hinged to the top of the housing, and a handle is provided on the door. This low-resistance high-efficiency air filter not only intercepts larger dust particles and some impurities in the air through the pre-filter plate, reducing the workload of the high-efficiency filter, but also cleans the pre-filter plate through the cleaning component, preventing the entire filter from reaching its saturation point prematurely due to excessive clogging of the pre-filter layer, thereby extending the overall service life of the high-efficiency filter.

[0004] The existing technology achieves multi-stage filtration through multiple filters and cleans the filters through a cleaning component. However, since dust is filtered on all the filters, and the existing technology only cleans the filter at the air inlet, dust easily accumulates on the other filters, reducing the filtration effect. Therefore, a high-efficiency air filter is needed to meet people's needs. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency air filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency air filter, comprising a filter housing, an air inlet at one end of the filter housing, and an air outlet at the other end. Inside the filter housing, from the air inlet to the air outlet, a first dust collection frame, a primary filter screen, a second dust collection frame, a secondary filter screen, a third dust collection frame, and a tertiary filter screen are sequentially slidably connected. These three filters are connected by a linkage mechanism. An electric telescopic rod is provided on the inner wall of the filter housing near the air outlet, and the electric telescopic rod is connected to the frame of the tertiary filter screen. A collection housing is provided at the bottom of the filter housing, and a roller is rotatably connected inside the collection housing. The roller is driven by a motor, and several arc-shaped fan blades are rotatably connected to the roller, the arc-shaped fan blades being evenly arranged in a circular pattern.

[0007] Preferably, a guide rod is connected between the inner wall of the filter housing near the air inlet and the inner wall of the filter housing near the air outlet, and the first dust collection frame, the first-stage filter screen, the second dust collection frame, the second-stage filter screen, the third dust collection frame, and the third-stage filter screen are all slidably connected to the guide rod.

[0008] Preferably, a sealing ring is fitted on the same side of the first dust collection frame, the primary filter, the second dust collection frame, the secondary filter, the third dust collection frame, and the tertiary filter.

[0009] Preferably, the linkage mechanism consists of several sets of I-beams, connecting rods, and T-shaped shafts. The two ends of the connecting rods are rotatably connected to the I-beams and T-shaped shafts, respectively. Each I-beam is slidably connected to the same side of the first dust collection frame, the first-stage filter, the second dust collection frame, the second-stage filter, the third dust collection frame, and the third-stage filter. Each T-shaped shaft is connected to the filter housing, the first dust collection frame, the first-stage filter, the second dust collection frame, the second-stage filter, and the third dust collection frame, respectively.

[0010] Preferably, the roller and several arc-shaped fan blades are arranged in two sets, symmetrically arranged, and connected by a synchronous belt pulley set.

[0011] Preferably, a collection frame is slidably connected inside the collection housing, and the collection frame is arranged below the roller.

[0012] The beneficial effects of this utility model are:

[0013] This invention achieves multi-stage filtration of the air filter through the arrangement of a primary, secondary, and tertiary filter, effectively improving the filtration effect. Furthermore, the arrangement of a first, second, and third dust collection frame, along with the coordination of an electric telescopic rod and a linkage mechanism, achieves separation between the primary, secondary, and tertiary filter screens. This ensures that particles of different sizes isolated on each filter screen are separated from their corresponding screens. Through the cooperation of a motor, rollers, and arc-shaped fan blades, each filter screen and dust collection frame are tapped and struck, thereby achieving a cleaning effect. Compared to existing technologies, this invention effectively achieves a high-efficiency air filter. Attached Figure Description

[0014] Figure 1 This is a right-side structural schematic diagram of a high-efficiency air filter proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the left side of a high-efficiency air filter proposed in this utility model.

[0016] Figure 3 This is a front cross-sectional view of a high-efficiency air filter proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the linkage mechanism structure of a high-efficiency air filter proposed in this utility model;

[0018] Figure 5 This is a side view sectional diagram of a roller structure for a high-efficiency air filter proposed in this utility model.

[0019] Figure 6 This is a top view cross-sectional diagram of a roller structure for a high-efficiency air filter proposed in this utility model.

[0020] In the diagram: 1. Filter housing; 2. Air inlet; 3. Air outlet; 4. First dust collection frame; 5. Primary filter screen; 6. Secondary dust collection frame; 7. Secondary filter screen; 8. Third dust collection frame; 9. Tertiary filter screen; 10. Linkage mechanism; 11. Electric telescopic rod; 12. Collection housing; 13. Roller; 14. Motor; 15. Arc-shaped fan blade; 16. Guide rod; 17. Sealing ring; 18. I-beam shaft; 19. Connecting rod; 20. T-shaft; 21. Synchronous pulley set; 22. Collection frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-6 A high-efficiency air filter includes a filter housing 1, with an air inlet 2 at one end and an air outlet 3 at the other end. Inside the filter housing 1, from the air inlet 2 to the air outlet 3, are sequentially connected a first dust collection frame 4, a primary filter screen 5, a second dust collection frame 6, a secondary filter screen 7, a third dust collection frame 8, and a tertiary filter screen 9. These components are connected by a linkage mechanism 10. An electric telescopic rod 11 is installed on the inner wall of the filter housing 1 near the air outlet 3, and is connected to the frame of the tertiary filter screen 9. A collection housing 12 is installed at the bottom of the filter housing 1, and a roller 13 is rotatably connected inside the collection housing 12. The roller 13 is driven by a motor 14, and several arc-shaped fan blades 15 are rotatably connected to the roller 13, arranged evenly in a circular pattern.

[0023] When the air filter is in operation, the electric telescopic rod 11 is in the extended state. The first dust collection frame 4 is attached to the inner wall of the filter housing 1 near the air inlet 2. The first-stage filter screen 5 is attached to the first dust collection frame 4, the second dust collection frame 6 is attached to the first-stage filter screen 5, the second-stage filter screen 7 is attached to the second-stage filter screen 6, the third dust collection frame 8 is attached to the second-stage filter screen 7, and the third-stage filter screen 9 is attached to the third-stage filter screen 8. Under the action of the fan, the air inlet 2 draws in outside air, and air containing particles of different sizes passes through the first dust collection frame. The particles pass through frame 4 and undergo primary filtration via primary filter 5, isolating larger particles in the first dust collection frame 4. Medium-sized particles are filtered by secondary filter 7 and isolated in the second dust collection frame 6. Smaller particles are filtered by tertiary filter 9 and isolated in the third dust collection frame 8. After a period of use, the fan power is turned off, and the electric telescopic rod 11 is activated, causing the tertiary filter 9 to move towards the electric telescopic rod 11. Through the linkage mechanism 10, the third dust collection frame 8 and the secondary filter 6 are then filtered. The filter screen 7, the second dust collection frame 6, the primary filter screen 5, and the first dust collection frame 4 sequentially achieve the separation effect. Powering the drive motor 14 causes the drum 13 to rotate. As the drum 13 rotates, the unconnected end of the arc-shaped fan blade 15 generates centrifugal force, striking and tapping the bottom ends of the first dust collection frame 4, the primary filter screen 5, the second dust collection frame 6, the secondary filter screen 7, the third dust collection frame 8, and the tertiary filter screen 9. This causes the first dust collection frame 4, the primary filter screen 5, the second dust collection frame 6, the secondary filter screen 7, and the third dust collection frame 9 to... The 8 and 3rd stage filters produce a slight vibration effect, thereby removing the dust particles remaining on the 1st stage filter 5, 2nd stage filter 7, and 3rd stage filter 9, as well as the dust particle polymers accumulated on the 1st dust collection frame 4, 2nd stage dust collection frame 6, and 3rd stage dust collection frame 8. After cleaning, the power to the motor 14 is turned off, and the power to the electric telescopic rod 11 is driven, so that the 1st stage dust collection frame 4, 1st stage filter 5, 2nd stage dust collection frame 6, 2nd stage filter 7, 3rd stage dust collection frame 8, and 3rd stage filter 9 are combined, and can be put into operation again.

[0024] Specifically, in this embodiment, a guide rod 16 is connected between the inner wall of the filter housing 1 near the air inlet 2 and the inner wall of the filter housing 1 near the air outlet 3. The first dust collection frame 4, the first-stage filter screen 5, the second dust collection frame 6, the second-stage filter screen 7, the third dust collection frame 8, and the third-stage filter screen 9 are all slidably connected to the guide rod 16, providing a unified movement guide for the first dust collection frame 4, the first-stage filter screen 5, the second-stage filter screen 6, the second-stage filter screen 7, the third-stage filter screen 8, and the third-stage filter screen 9, while improving the stability of the connection between them.

[0025] Specifically, in this embodiment, sealing rings 17 are fitted on the same side of the first dust collection frame 4, the primary filter screen 5, the second dust collection frame 6, the secondary filter screen 7, the third dust collection frame 8, and the tertiary filter screen 9 to improve the sealing effect when they are combined and prevent air leakage at the connection point during operation.

[0026] Specifically, in this embodiment, the linkage mechanism 10 consists of several sets of I-beams 18, connecting rods 19, and T-shaped shafts 20. The two ends of the connecting rods 19 are rotatably connected to the I-beams 18 and the T-shaped shafts 20, respectively. Each I-beam 18 is slidably connected to the same side of the first dust collection frame 4, the first-stage filter screen 5, the second dust collection frame 6, the second-stage filter screen 7, the third dust collection frame 8, and the third-stage filter screen 9. Each T-shaped shaft 20 is connected to the filter housing 1, the first dust collection frame 4, the first-stage filter screen 5, the second dust collection frame 6, the second-stage filter screen 7, the third dust collection frame 8, and the third-stage filter screen 9, respectively. The filter screen 7 and the third dust collection frame 8 are connected to the first dust collection frame 4, the primary filter screen 5, the second dust collection frame 6, the secondary filter screen 7, the third dust collection frame 8 and the tertiary filter screen 9. At the same time, the movement of the tertiary filter screen 9 drives the movement of the third dust collection frame 8, the movement of the third dust collection frame 8 drives the movement of the secondary filter screen 7, the movement of the secondary filter screen 7 drives the movement of the second dust collection frame 6, the movement of the second dust collection frame 6 drives the movement of the primary filter screen 5, and the movement of the primary filter screen 5 drives the movement of the first dust collection frame 4.

[0027] Specifically, in this embodiment, the roller 13 and several arc-shaped fan blades 15 are arranged in two groups, symmetrically arranged, and connected by a synchronous belt pulley group 21 to prevent the roller 13 from contacting the falling dust and to prevent dust generation.

[0028] Specifically, in this embodiment, a collection frame 22 is slidably connected inside the collection shell 12. The collection frame 22 is arranged below the roller 13, which facilitates unified collection and subsequent cleaning.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-efficiency air filter, comprising a filter housing (1), characterized in that: The filter housing (1) has an air inlet (2) at one end and an air outlet (3) at the other end. Inside the filter housing (1), from the air inlet (2) to the air outlet (3), a first dust collection frame (4), a primary filter screen (5), a second dust collection frame (6), a secondary filter screen (7), a third dust collection frame (8), and a tertiary filter screen (9) are slidably connected in sequence. The first dust collection frame (4), the primary filter screen (5), the second dust collection frame (6), the secondary filter screen (7), the third dust collection frame (8), and the tertiary filter screen (9) are connected by means of air inlet (2) and air outlet (3). The filter housing (1) is connected by a linkage mechanism (10). An electric telescopic rod (11) is provided on the inner wall of the end of the filter housing (1) near the air outlet (3). The electric telescopic rod (11) is connected to the frame of the three-stage filter screen (9). A collection housing (12) is provided at the bottom of the filter housing (1). A roller (13) is rotatably connected inside the collection housing (12). The roller (13) is driven by a motor (14). Several arc-shaped fan blades (15) are rotatably connected on the roller (13). The arc-shaped fan blades (15) are evenly arranged in a circular shape.

2. The high-efficiency air filter according to claim 1, characterized in that: A guide rod (16) is connected between the inner wall of the filter housing (1) near the air inlet (2) and the inner wall of the filter housing (1) near the air outlet (3). The first dust collection frame (4), the first-stage filter screen (5), the second dust collection frame (6), the second-stage filter screen (7), the third dust collection frame (8), and the third-stage filter screen (9) are all slidably connected to the guide rod (16).

3. The high-efficiency air filter according to claim 1, characterized in that: A sealing ring (17) is fitted on the same side of the first dust collection frame (4), the first-stage filter (5), the second dust collection frame (6), the second-stage filter (7), the third dust collection frame (8), and the third-stage filter (9).

4. The high-efficiency air filter according to claim 1, characterized in that: The linkage mechanism (10) consists of several sets of I-beams (18), connecting rods (19) and T-shaped shafts (20). The two ends of the connecting rods (19) are rotatably connected to the I-beams (18) and the T-shaped shafts (20) respectively. Each I-beam (18) is slidably connected to the same side of the first dust collection frame (4), the first-stage filter screen (5), the second dust collection frame (6), the second-stage filter screen (7), the third dust collection frame (8) and the third-stage filter screen (9). Each T-shaped shaft (20) is connected to the filter housing (1), the first dust collection frame (4), the first-stage filter screen (5), the second dust collection frame (6), the second-stage filter screen (7) and the third dust collection frame (8) respectively.

5. The high-efficiency air filter according to claim 1, characterized in that: The roller (13) and several arc-shaped fan blades (15) are two sets arranged symmetrically to each other and connected by a synchronous belt pulley set (21).

6. The high-efficiency air filter according to claim 1, characterized in that: A collection frame (22) is slidably connected inside the collection shell (12), and the collection frame (22) is arranged below the roller (13).