A primary air filter integrated with a self-cleaning mechanism

Abstract

The utility model discloses a primary efficiency air filter of integrated self -cleaning mechanism relates to primary efficiency air filter technical field, and its technical scheme is: including air filter main part, and the air filter main part one side is provided with the installation cavity, and the installation cavity inside is equipped with self -cleaning filter mechanism, and the self -cleaning filter mechanism includes the installation shell, and the installation shell inside is installed with the folding filter material, and the installation shell one side is equipped with the filter component, and the installation shell other side is equipped with the back -blow component, and the filter component includes the second ventilating hood, and the second ventilating hood fixedly is established in the installation shell one side, and the second ventilating hood one side fixedly is equipped with the inner ventilating board, and the beneficial effect is: compressed air is blown into the cover shell through the air outlet pipe and electric three -way valve, and the folding filter material is back -blow, makes the folding filter material swelling deformation, and the impurity adhered on the surface falls off due to vibration and airflow scouring, and the cleaning effect is remarkable, can effectively restore the filtering performance of folding filter material, prolongs its life.

Description

Technical Field

[0001] This utility model relates to the field of primary air filter technology, specifically to a primary air filter with an integrated self-cleaning mechanism. Background Technology

[0002] A primary air filter is the initial filtration unit in air conditioning, ventilation, and air purification systems, primarily intercepting dust particles in the air.

[0003] As existing filters are used for a longer period of time, a large amount of impurities will accumulate on the surface, which will gradually reduce the filtration efficiency and affect the air purification effect. When the impurities accumulate to a certain extent, they will also increase the resistance to airflow, leading to increased operating costs. Pre-filters lack effective self-cleaning functions and need to be manually disassembled for cleaning or replacement regularly. This not only consumes a lot of manpower and time, but may also damage the filter during disassembly and installation, affecting its normal use. Utility Model Content

[0004] To address this issue, this utility model provides a pre-filter with an integrated self-cleaning mechanism to solve the problem that as the filter surface accumulates a large amount of impurities over time, the filtration efficiency gradually decreases, affecting the air purification effect. When the impurities accumulate to a certain extent, they also increase the resistance to airflow, leading to increased operating costs. Pre-filters lack effective self-cleaning functions and require regular manual disassembly for cleaning or replacement. This not only consumes a lot of manpower and time, but may also damage the filter during disassembly and installation, affecting its normal use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a primary air filter with an integrated self-cleaning mechanism, comprising an air filter body, wherein an installation cavity is provided on one side of the air filter body, and a self-cleaning filtration mechanism is provided inside the installation cavity;

[0006] The self-cleaning filtration mechanism includes a mounting shell, inside which a pleated filter media is installed. A filter assembly is provided on one side of the mounting shell, and a backflushing assembly is provided on the other side of the mounting shell. The filter assembly includes a second ventilation hood, which is fixedly mounted on one side of the mounting shell. An inner ventilation plate is fixedly mounted on one side of the second ventilation hood. A first ventilation hood is rotatably connected to the outside of the second ventilation hood. An outer ventilation plate is fixedly mounted on one side of the first ventilation hood. Multiple ventilation holes are provided on one side of both the second and first ventilation hoods. An arc-shaped toothed plate is fixedly mounted on the outside of the first ventilation hood. A motor is fixedly mounted on one side of the mounting shell, and a gear is fixedly connected to the output end of the motor. The gear meshes with the arc-shaped toothed plate.

[0007] Preferably, the backflush assembly includes a housing, which is fixedly disposed on one side of the mounting housing. An electric three-way valve is installed on one side of the housing. A round pipe is installed at one end of the electric three-way valve, and an air outlet pipe is installed at the top of the electric three-way valve. A compressor is installed on the top of the mounting housing, and the output end of the compressor is fixedly connected to the air outlet pipe.

[0008] Preferably, a collection unit is provided on one side of the first ventilation hood. The collection unit includes a connecting cover. The connecting cover is connected to the first ventilation hood through a sealed bearing. A fan is installed inside the connecting cover. A connecting pipe is fixedly connected to one side of the connecting cover. A dust collection bag is connected to one side of the connecting pipe. A card plate is fixedly provided on one side of the dust collection bag. A card holder is fixedly provided on one side of the mounting shell. The card plate and the card holder are slidably connected.

[0009] Preferably, a protective shell is fixedly provided on the top of the mounting shell, and two limiting holes are provided on one side of the protective shell.

[0010] Preferably, two threaded sleeves are fixedly provided inside the mounting cavity, the threaded sleeves pass through the limiting hole, and a threaded rod is connected to one side of the threaded sleeve by a thread.

[0011] Preferably, two chucks are fixedly provided on one side of the air filter body, and filter plates are provided inside the two chucks.

[0012] Preferably, a sleeve is installed inside the mounting cavity, and the sleeve is connected to the round tube.

[0013] Preferably, both the inner and outer ventilation panels have multiple ventilation openings on their surfaces.

[0014] The present invention has the following advantages:

[0015] 1. This utility model achieves automatic cleaning of pleated filter media by setting a self-cleaning filtration mechanism, including the coordinated work of the filter component and the back-blowing component. When too many impurities are intercepted on the surface of the pleated filter media, the electric three-way valve and motor are activated to rotate the first ventilation hood at a certain angle, changing the ventilation path. At the same time, the compressor is activated to blow compressed air into the hood through the air outlet pipe and the electric three-way valve to back-blow the pleated filter media. This back-blowing method can cause the pleated filter media to expand and deform, and the impurities attached to the surface are detached due to vibration and airflow. The cleaning effect is significant, which can effectively restore the filtration performance of the pleated filter media and extend its service life.

[0016] 2. A collection unit is set on one side of the first ventilation hood, including components such as a connecting cover, a fan, a connecting pipe, and a dust collection bag. During the backflushing process, the fan is turned on, which can suck away the fallen impurities and put them into the dust collection bag through the connecting pipe for centralized collection. A card plate is provided on one side of the dust collection bag, which is slidably connected to the card holder on the side of the mounting shell, which facilitates the installation and removal of the dust collection bag and makes it easy to clean the impurities in the dust collection bag regularly, ensuring the continuity and stability of the self-cleaning process. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Figure 1 A schematic diagram of the overall structure of this utility model;

[0020] Figure 2 A schematic diagram of the internal structure of the mounting cavity provided by this utility model;

[0021] Figure 3 Top sectional view of the overall structure provided by this utility model;

[0022] Figure 4 A perspective view of the self-cleaning filter mechanism provided by this utility model;

[0023] Figure 5 A cross-sectional view of the self-cleaning filter mechanism provided by this utility model;

[0024] Figure 6 Exploded view of the filter assembly parts provided by this utility model.

[0025] In the diagram: 1. Air filter body; 2. Chuck; 3. Filter plate; 4. Mounting cavity; 5. First ventilation hood; 6. Connecting pipe; 7. Holder; 8. Holder plate; 9. Dust collection bag; 10. Sleeve; 11. Round pipe; 12. Electric three-way valve; 13. Air outlet pipe; 14. Threaded sleeve; 15. Threaded rod; 16. Protective shell; 17. Compressor; 18. Mounting shell; 19. Connecting cover; 20. Motor; 21. Gear; 22. Arc-shaped toothed plate; 23. Cover; 24. Folded filter media; 25. Second ventilation hood; 26. Inner ventilation plate; 27. Outer ventilation plate; 28. Fan. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See attached document Figure 1 -Appendix Figure 6 The present invention provides a primary air filter with an integrated self-cleaning mechanism, comprising an air filter body 1, wherein an installation cavity 4 is provided on one side of the air filter body 1, and a self-cleaning filtration mechanism is provided inside the installation cavity 4;

[0028] The self-cleaning filter mechanism includes a mounting shell 18, inside which a pleated filter material 24 is installed. A filter assembly is provided on one side of the mounting shell 18, and a backflushing assembly is provided on the other side of the mounting shell 18. The filter assembly includes a second ventilation hood 25, which is fixedly mounted on one side of the mounting shell 18. An inner ventilation plate 26 is fixedly mounted on one side of the second ventilation hood 25. A first ventilation hood 5 is rotatably connected to the outside of the second ventilation hood 25. An outer ventilation plate 27 is fixedly mounted on one side of the first ventilation hood 5. Multiple ventilation holes are provided on one side of both the second ventilation hood 25 and the first ventilation hood 5. An arc-shaped toothed plate 22 is fixedly mounted on the outside of the first ventilation hood 5. A motor 20 is fixedly mounted on one side of the mounting shell 18. A gear 21 is fixedly connected to the output end of the motor 20. The gear 21 meshes with the arc-shaped toothed plate 22. Multiple ventilation openings are provided on the surfaces of both the inner ventilation plate 26 and the outer ventilation plate 27.

[0029] In this embodiment, when the air filter body 1 is working, the compressor inside it works and generates suction, causing the air to pass through the pleated filter material 24 for secondary interception and filtration. At this time, the outer ventilation plate 27 blocks the ventilation opening of the inner ventilation plate 26, and the purified air is blown out through the air filter body 1.

[0030] To achieve the backflushing purpose, this device employs the following technical solution: The backflushing assembly includes a housing 23, which is fixedly mounted on one side of the mounting housing 18. An electric three-way valve 12 is installed on one side of the housing 23. A round pipe 11 is installed at one end of the electric three-way valve 12, and an air outlet pipe 13 is installed at the top of the electric three-way valve 12. A compressor 17 is installed on the top of the mounting housing 18, and the output end of the compressor 17 is fixedly connected to the air outlet pipe 13. When the electric three-way valve 12 is activated, it closes the channel on one side of the round pipe 11 while simultaneously connecting the channel between the electric three-way valve 12 and the air outlet pipe 13. Simultaneously, the motor is started. 20. Motor 20 controls gear 21 to rotate. Gear 21 drives arc-shaped toothed plate 22 to rotate. Arc-shaped toothed plate 22 drives first ventilation hood 5 to rotate. After the first ventilation hood 5 rotates to a certain angle, it blocks the ventilation holes on the second ventilation hood 25. When the first ventilation hood 5 rotates, it will drive the outer ventilation plate 27 to rotate, so that the ventilation port between the outer ventilation plate 27 and the second ventilation hood 25 is connected. Start compressor 17. Compressed air is blown out by compressor 17 and then blown into the cover 23 through air outlet pipe 13 and electric three-way valve 12. The air back-blowing on pleated filter material 24 causes pleated filter material 24 to expand and deform. Impurities attached to the surface are shed due to vibration and airflow.

[0031] To achieve the collection purpose, the device adopts the following technical solution: A collection unit is provided on one side of the first ventilation hood 5. The collection unit includes a connecting cover 19. The connecting cover 19 is connected to the first ventilation hood 5 through a sealed bearing. A fan 28 is installed inside the connecting cover 19. A connecting pipe 6 is fixedly connected to one side of the connecting cover 19. A dust collection bag 9 is connected to one side of the connecting pipe 6. A card plate 8 is fixedly provided on one side of the dust collection bag 9. A card holder 7 is fixedly provided on one side of the mounting shell 18. The card plate 8 and the card holder 7 are slidably connected. When the fan 28 is started, the fan 28 sucks away the impurities and enters the dust collection bag 9 through the connecting pipe 6 for centralized collection.

[0032] To achieve the installation purpose, the device adopts the following technical solution: a protective shell 16 is fixedly provided on the top of the mounting shell 18, two limiting holes are opened on one side of the protective shell 16, two threaded sleeves 14 are fixedly provided inside the mounting cavity 4, the threaded sleeves 14 pass through the limiting holes, and a threaded rod 15 is threadedly connected to one side of the threaded sleeve 14. The threaded sleeve 14 passes through the limiting holes on the protective shell 16 and is then fixed by the threaded rod 15.

[0033] In order to achieve the purpose of filtration, the device adopts the following technical solution: two chucks 2 are fixedly provided on one side of the air filter body 1, and filter plates 3 are provided inside the two chucks 2. The filter plates 3 are installed between the two chucks 2, and large particles such as dust, hair and fibers can be efficiently intercepted through the filter plates 3.

[0034] To achieve the docking purpose, the device adopts the following technical solution: a sleeve 10 is installed inside the mounting cavity 4, the sleeve 10 is docked with the round tube 11, the self-cleaning filter mechanism is installed inside the mounting cavity 4, the round tube 11 is inserted into the sleeve 10, and the sleeve 10 is connected to the compressor inside the air filter body 1.

[0035] The usage process of this utility model is as follows: When using this utility model, the self-cleaning filter mechanism is installed inside the mounting cavity 4. The round tube 11 is inserted into the sleeve 10, and the sleeve 10 is connected to the compressor inside the air filter body 1. The threaded sleeve 14 passes through the limiting hole on the protective shell 16 and is then fixed by the threaded rod 15. Then, the filter plate 3 is installed between the two chucks 2. The filter plate 3 can efficiently intercept large particles such as dust, hair, and fibers. When the air filter body 1 is working, the compressor inside it works and generates suction, causing the air to undergo secondary interception and filtration after passing through the pleated filter material 24. At this time, the outer ventilation plate 27 blocks the ventilation opening of the inner ventilation plate 26, and the purified air is blown out through the air filter body 1. When too many impurities are intercepted on the surface of the pleated filter material 24, the electric three-way valve 12 is activated. The electric three-way valve 12 closes the channel on one side of the round tube 11, and at the same time, the electric three-way valve 12 connects the channel between the round tube 11 and the outlet pipe 13, and the motor is started. 20. Motor 20 controls gear 21 to rotate, gear 21 drives arc-shaped toothed plate 22 to rotate, arc-shaped toothed plate 22 drives first ventilation hood 5 to rotate, so that after the first ventilation hood 5 rotates to a certain angle, it blocks the ventilation holes on the second ventilation hood 25. When the first ventilation hood 5 rotates, it will drive the outer ventilation plate 27 to rotate, so that the ventilation port between the outer ventilation plate 27 and the second ventilation hood 25 is connected. Compressor 17 is started, compressor 17 blows out compressed air, and then blows it into the housing 23 through air outlet pipe 13 and electric three-way valve 12. The air back-blowing on pleated filter material 24 causes pleated filter material 24 to expand and deform. Impurities attached to the surface are detached due to vibration and airflow. At the same time, fan 28 is started, fan 28 sucks away impurities and enters dust collection bag 9 through connecting pipe 6 for centralized collection. While dust collection bag 9 intercepts impurities, air is discharged from the surface gaps and enters installation cavity 4, and then back-blowing on filter plate 3, completing the self-cleaning of pleated filter material 24 and improving the service life of pleated filter material 24.

[0036] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A pre-filter with an integrated self-cleaning mechanism, comprising an air filter body (1), characterized in that: The air filter body (1) has an installation cavity (4) on one side, and a self-cleaning filter mechanism is provided inside the installation cavity (4); The self-cleaning filter mechanism includes a mounting shell (18), inside which a folded filter material (24) is installed. A filter assembly is provided on one side of the mounting shell (18), and a backflushing assembly is provided on the other side of the mounting shell (18). The filter assembly includes a second ventilation hood (25), which is fixedly mounted on one side of the mounting shell (18). An inner ventilation plate (26) is fixedly mounted on one side of the second ventilation hood (25). A first ventilation hood (5) is rotatably connected to the outside of the second ventilation hood (25). An outer ventilation plate (27) is fixedly mounted on one side of the first ventilation hood (5). Multiple ventilation holes are provided on one side of both the second ventilation hood (25) and the first ventilation hood (5). An arc-shaped toothed plate (22) is fixedly mounted on the outside of the first ventilation hood (5). A motor (20) is fixedly mounted on one side of the mounting shell (18). A gear (21) is fixedly connected to the output end of the motor (20), and the gear (21) meshes with the arc-shaped toothed plate (22).

2. A pre-filter with an integrated self-cleaning mechanism according to claim 1, characterized in that: The backflush assembly includes a cover (23), which is fixedly mounted on one side of the mounting shell (18). An electric three-way valve (12) is installed on one side of the cover (23). A round pipe (11) is installed at one end of the electric three-way valve (12). An air outlet pipe (13) is installed at the top of the electric three-way valve (12). A compressor (17) is installed at the top of the mounting shell (18). The output end of the compressor (17) is fixedly connected to the air outlet pipe (13).

3. A pre-filter with an integrated self-cleaning mechanism according to claim 1, characterized in that: A collection unit is provided on one side of the first ventilation hood (5). The collection unit includes a connecting cover (19). The connecting cover (19) is connected to the first ventilation hood (5) by a sealed bearing. A fan (28) is installed inside the connecting cover (19). A connecting pipe (6) is fixedly connected to one side of the connecting cover (19). A dust collection bag (9) is connected to one side of the connecting pipe (6). A card plate (8) is fixedly provided on one side of the dust collection bag (9). A card holder (7) is fixedly provided on one side of the mounting shell (18). The card plate (8) and the card holder (7) are slidably connected.

4. A pre-filter with an integrated self-cleaning mechanism according to claim 1, characterized in that: The top of the mounting shell (18) is fixedly provided with a protective shell (16), and two limiting holes are opened on one side of the protective shell (16).

5. A pre-filter with an integrated self-cleaning mechanism according to claim 4, characterized in that: The mounting cavity (4) is fixedly provided with two threaded sleeves (14), which pass through the limiting hole, and a threaded rod (15) is connected to one side of the threaded sleeve (14) by thread.

6. A pre-filter with an integrated self-cleaning mechanism according to claim 1, characterized in that: Two chucks (2) are fixedly provided on one side of the air filter body (1), and filter plates (3) are provided inside the two chucks (2).

7. A pre-filter with an integrated self-cleaning mechanism according to claim 1, characterized in that: The mounting cavity (4) is equipped with a sleeve (10), which is connected to the round tube (11).

8. A pre-filter with an integrated self-cleaning mechanism according to claim 1, characterized in that: Both the inner ventilation panel (26) and the outer ventilation panel (27) have multiple ventilation openings on their surfaces.

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