A low resistance energy-saving air filter

Abstract

The present invention provides a low-resistance energy-saving air filter, comprising a filter housing and a filter body installed inside the filter housing, a purification device is arranged outside the filter body, the filter body is a closed ring and comprises at least two filter covers, the purification device comprises a purification component 1 arranged outside the filter body and a purification component 2 arranged inside the filter body, the purification component 1 comprises a first purification part and a first sealing part installed on both sides of the first purification part, the purification component 2 comprises a second purification part and a second sealing part installed on both sides of the second purification part; a purification mechanism is installed between the first sealing part and the second sealing part. The invention has a compact structure, occupies a small space, and is convenient for the arrangement of other structures; at the same time, the filter cover can be efficiently cleaned, the low resistance of air purification is ensured, and the energy consumption of the air filter is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of filters, and in particular to a low-resistance energy-saving air filter. Background Art

[0002] As the filtering time increases, the impurities attached to the surface of the filter element and filter screen inside the air filter increase accordingly. The increased impurities accumulate on the surface of the filter element and filter screen, affecting the normal air flow on the surface of the filter element and filter screen, causing the filtration resistance of the air filter to increase and the energy consumption to increase.

[0003] The above problems can be solved by regularly replacing and cleaning the filter element and filter screen on the surface of the air filter. The traditional manual replacement method requires opening the air filter and manually disassembling and replacing it, which is a cumbersome operation. During the operation, the air filter is in standby mode, which affects the air filtration efficiency.

[0004] Some designs can achieve automatic purification and cleaning without stopping the machine by designing a rotatable filter structure and setting up independent filter chambers and cleaning chambers, which reduces the filtering resistance of the air filter and solves the problem of cumbersome manual replacement of filter elements and filter screens. However, the existing automatically replaced filter screen structure is usually a disc-shaped structure, which occupies a large volume and affects the design of the internal structure of the air filter. In addition, since the internal sealing structure is relatively simple, the filter screen containing more impurities rubs against the inner wall of the structure during rotation, affecting the subsequent cleaning and purification effects as well as the normal use of the air filter. Summary of the invention

[0005] In view of the above problems, the present invention provides a low-resistance energy-saving air filter, which has a compact structure, occupies a small space, and is convenient for the arrangement of other structures; at the same time, it can efficiently clean the filter cover, ensure low resistance for air purification, and reduce the energy consumption of the air filter.

[0006] To solve the above problems, the technical solution adopted by the present invention is:

[0007] A low-resistance energy-saving air filter comprises a filter housing and a filter body installed inside the filter housing, a purification device is arranged on the outside of the filter body, the filter body is a closed ring and comprises at least two filter covers, the purification device comprises a purification component 1 arranged on the outside of the filter body and a purification component 2 arranged on the inside of the filter body, the purification component 1 comprises a first purification part and a first sealing part installed on both sides of the first purification part, the purification component 2 comprises a second purification part and a second sealing part installed on both sides of the second purification part; a purification mechanism is installed between the first sealing part and the second sealing part; wherein, after impurities on the surface of the filter cover exceed a set threshold value, the filter cover is controlled to rotate between the purification component 1 and the purification component 2, the first sealing part moves toward the second sealing part, and the sealing and purification of the filter cover are continuously completed.

[0008] Through the above-mentioned structural design, purification and cleaning can be completed by controlling the filter cover to rotate between purification component one and purification component two, avoiding long-term blockage of the filter cover surface and ensuring low wind resistance of airflow for filtering; at the same time, through the structural design of the first sealing part and the second sealing part, the sealing effect on both sides of the filter cover can be quickly adjusted to allow the filter cover to rotate efficiently without friction, and at the same time, the filter cover can be cleaned in a closed environment to avoid affecting the filter cover for normal air filtering on the outside, thereby ensuring efficient and stable air filtration; and the annular filter body has a compact structure and occupies a small space, which is convenient for the arrangement of other structures.

[0009] In addition, the first sealing part pushes the corresponding filter cover from the outside toward the inside and seals with the second sealing part. Double-sided sealing can be achieved through a set of telescopic structure, which simplifies the structural design inside the air filter and achieves efficient sealing design. At the same time, the filter cover here adopts a flexible design. During the process of the first sealing part pushing the two sides of the filter cover toward the inside from both sides, the middle position of the filter cover slightly bulges toward the outside. At this time, the outer surface of the filter cover is in a slightly expanded state, and its outer surface area increases and changes, and the strength between the filter cover and the dust and impurities attached to its surface is reduced, which is convenient for subsequent purification mechanism to clean and improves the efficiency of cleaning the filter cover surface.

[0010] Preferably, a positioning device is installed on the outside of the filter body, the filter body includes at least two vertically arranged positioning bars, the filter cover is installed between adjacent positioning bars, the positioning bars and the filter cover together form an annular filter body, and a driving component for controlling the rotation of the filter body is installed on the surface of the positioning device.

[0011] Preferably, two positioning bars are symmetrically arranged, and the purification device includes a continuous purification component 1 and a continuous purification component 2.

[0012] Preferably, the positioning strips are arranged in an even number, and the purification device comprises a plurality of purification components 1 arranged at intervals and a plurality of purification components 2 arranged at intervals.

[0013] Preferably, the first sealing portion side wall is provided with an extendable first sealing component, and the second sealing portion side wall is provided with a second sealing component. After the first sealing component is extended, it moves toward the second sealing component to push the filter cover and the second sealing component tightly to complete the sealing.

[0014] The first sealing component is extended to be pressed against the outer surface of the filter cover, and as the first sealing component continues to extend, it can push both sides of the filter cover to move inward, ultimately allowing the inner surface of the filter cover to be pressed against the surface of the second sealing component, thereby achieving double-sided sealing of the filter cover.

[0015] Preferably, the first sealing assembly comprises a vertically arranged sealing block and an elastic airbag located inside the sealing block, and a surface of the elastic airbag is connected to a surface of the sealing block.

[0016] Preferably, the first purification part is concave to form a first purification chamber, the second purification part is concave to form a second purification chamber, the purification mechanism includes a pump air pipeline connected to the second purification chamber, the first purification chamber is connected to a negative pressure pipeline, and a purified airflow is formed between the pump air pipeline and the negative pressure pipeline.

[0017] Preferably, a pneumatic cleaning device is provided inside the first purification chamber, and the pneumatic cleaning device is abutted against the outer surface of the convex filter cover. The pneumatic cleaning device moves toward the first side of the first purification chamber under the action of gas, and the filter cover drives the pneumatic cleaning device to move toward the second side of the first purification chamber during rotation.

[0018] The above-mentioned structural design further improves the cleaning effect on the surface of the filter cover; at the same time, during the rotation of the filter cover, the pneumatic cleaning device is driven to move toward the second side of the first purification chamber, and the rotation of the filter cover can drive the pneumatic cleaning device to reset to the initial position, thereby realizing automatic resetting of the pneumatic cleaning device and preparing for the next cleaning of the filter cover surface; the above-mentioned structure further simplifies the internal structural design of the air filter and simplifies the control process.

[0019] Preferably, the pneumatic cleaning device comprises a cleaning base slidably connected to the first cleaning chamber, a pneumatic cleaning rod is fixed to the upper end of the cleaning base, and a cleaning protrusion and an air blowing opening are installed on the side wall of the pneumatic cleaning rod.

[0020] Preferably, a plurality of guide plates facing downward are arranged inside the air blowing opening, and the plurality of guide plates are arranged at intervals and extend along the vertical direction.

[0021] The beneficial effects of the present invention are:

[0022] 1. Through the above-mentioned structural design, purification and cleaning can be completed by controlling the filter cover to rotate between purification component 1 and purification component 2, avoiding long-term blockage of the filter cover surface and ensuring low wind resistance of airflow for filtering; at the same time, through the structural design of the first sealing part and the second sealing part, the sealing effect on both sides of the filter cover can be quickly adjusted, allowing the filter cover to rotate efficiently without friction, and at the same time, the filter cover can be cleaned in a closed environment, avoiding affecting the filter cover for normal air filtering on the outside, ensuring efficient and stable air filtration; and the annular filter body has a compact structure and occupies a small space, which is convenient for the arrangement of other structures.

[0023] 2. The first sealing part pushes the corresponding filter cover from the outside toward the inside and seals with the second sealing part. Double-sided sealing can be achieved through a set of telescopic structure, which simplifies the internal structural design of the air filter and realizes efficient sealing design. At the same time, the filter cover here adopts a flexible design. During the process of the first sealing part pushing the two sides of the filter cover toward the inside from both sides, the middle position of the filter cover slightly bulges toward the outside. At this time, the outer surface of the filter cover is in a slightly expanded state, and its outer surface area increases and changes. The strength between the filter cover and the dust and impurities attached to its surface is reduced, which is convenient for subsequent purification mechanism to clean and improves the efficiency of cleaning the filter cover surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 2 It is a schematic diagram of the explosion structure of the present invention.

[0026] Figure 3 This is a schematic diagram of a first embodiment of the filter body of the present invention.

[0027] Figure 4 It is a schematic diagram of the first embodiment of the purification device of the present invention.

[0028] Figure 5 This is a schematic diagram of a second embodiment of the filter body of the present invention.

[0029] Figure 6 It is a schematic diagram of a second embodiment of the purification device of the present invention.

[0030] Figure 7 For the present invention Figure 6 Schematic diagram of the main structure.

[0031] Figure 8 For the present invention Figure 7 AA section structure schematic diagram.

[0032] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at B.

[0033] In the figure: 100, filter housing; 110, lower housing; 111, air inlet channel; 120, upper housing; 121, air outlet channel; 200, filter body; 210, positioning strip; 211, first sealing opening; 212, second sealing opening; 220, filter cover; 221, filter hole; 230, drive assembly; 300, positioning device; 310, upper positioning assembly; 311, exhaust pipe; 320, lower positioning assembly; 400, purification device; 410 , purification component one; 411, first sealing part; 4111, sealing block; 4112, elastic airbag; 412, first purification part; 4121, first purification chamber; 420, purification component two; 421, second sealing part; 4211, second sealing component; 422, second purification part; 4221, second purification chamber; 500, pneumatic cleaning device; 510, cleaning base; 520, pneumatic cleaning rod; 521, air blowing opening; 522, cleaning protrusion. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] The inside of an air filter is usually equipped with filter elements, filter screens and other structures, which can adsorb impurities in the air onto the surface to achieve efficient air purification. It is widely used in various fields of industry and life.

[0036] As the filtering time increases, the impurities attached to the surface of the filter element and filter screen inside the air filter increase accordingly. The increased impurities accumulate on the surface of the filter element and filter screen, affecting the normal air flow on the surface of the filter element and filter screen, causing the filtration resistance of the air filter to increase and the energy consumption to increase.

[0037] The above problems can be solved by regularly replacing and cleaning the filter element and filter screen on the surface of the air filter. The traditional manual replacement method requires the air filter to be opened and manually disassembled and replaced, which is cumbersome to operate, and the air filter is in standby mode during the operation, which affects the air filtration efficiency. Some designs can achieve automatic purification and cleaning without stopping the machine by designing a rotatable filter structure and setting up independent filter chambers and cleaning chambers, which reduces the filtration resistance of the air filter and solves the problem of cumbersome manual replacement of filter elements and filter screens. However, the existing automatically replaceable filter screen structure is usually a disc-shaped structure, which occupies a large volume and affects the design of the internal structure of the air filter. In addition, since the internal sealing structure is relatively simple, the filter screen containing more impurities rubs against the inner wall of the structure during rotation, affecting the subsequent cleaning and purification effects and the normal use of the air filter.

[0038] In order to solve the above problems, refer to the attached Figure 1 -Attached Fig. 9 A low-resistance energy-saving air filter comprises a filter housing 100 and a filter body 200 installed inside the filter housing 100, a purification device 400 is arranged on the outside of the filter body 200, the filter housing 100 comprises a detachably connected lower housing 110 and an upper housing 120, the side wall of the lower housing 110 is provided with an air inlet channel 111, and the top of the upper housing 120 is provided with an air outlet channel 121, when the air filter is working, the internal pumping element controls the airflow to flow in from the air inlet channel 111 in a directional manner and the air outlet channel 121 flows out in a directional manner, in this process the airflow passes through the filter body 200 in a directional manner for filtering and purifying, thereby filtering and purifying the air; the purification device 400 can regularly clean the surface of the filter body 200 to purify impurities accumulated on the surface, ensure the efficient ventilation efficiency of the surface of the filter body 200, realize the low-resistance flow of the airflow, and reduce the energy consumption of the air filter.

[0039] Specifically, the filter body 200 is a closed ring, and the filter body 200 includes at least two filter covers 220, and the filter covers 220 are arc-shaped. Multiple filter covers 220 are combined to form an annular filter body 200. The improved purification device 400 includes a purification component 410 arranged on the outside of the filter body 200 and a purification component 420 arranged on the inside of the filter body 200. The purification component 1 410 and the purification component 2 420 are designed relatively to each other, and the purification component 1 410 and the purification component 2 420 are located in the same arc-shaped area.

[0040] More specifically, the purification component 1 410 includes a first purification part 412 and a first sealing part 411 installed on both sides of the first purification part 412, and the purification component 2 420 includes a second purification part 422 and a second sealing part 421 installed on both sides of the second purification part 422; a purification mechanism is installed between the first sealing part 411 and the second sealing part 421, and the surface of the filter cover 220 can be cleaned by the purification mechanism to remove dust and impurities accumulated on the outer surface thereof; wherein, when the impurities on the surface of the filter cover 220 exceed a set threshold value, the filter cover 220 is controlled to rotate between the purification component 1 410 and the purification component 2 420, and the first sealing part 411 is moved toward the second sealing part 421. 1 direction, continuously completing the sealing and purification of the filter cover 220. In this process, the first sealing part 411 and the second sealing part 421 are first in a state of being pressed against each other, which can ensure that the two sides of the filter cover 220 are in a relatively closed state, separate the filter cover 220, and avoid affecting the normal filtering of the filter cover 220 on the outside; after the sealing is completed, the purification mechanism is controlled to perform deep cleaning on the surface of the filter cover 220 to remove the dust and impurities accumulated on the outside of the filter cover 220, and collect these dust and impurities in a targeted manner to ensure that the surface of the filter cover 220 is in a clean state, and avoid continuous clogging of the filter holes 221 on the surface of the filter cover 220, which increases the resistance of the airflow.

[0041] The rotation of the filter cover 220 is preferably controlled electrically, and the detection of impurities on the surface of the filter cover 220 can be determined by reverse calculation through airflow resistance, or by image analysis through an image analysis element.

[0042] Through the above-mentioned structural design, purification and cleaning can be completed by controlling the filter cover 220 to rotate between the purification component 1 410 and the purification component 2 420, thereby avoiding long-term blockage of the surface of the filter cover 220 and ensuring low wind resistance filtering of the airflow; at the same time, through the structural design of the first sealing part 411 and the second sealing part 421, the sealing effect on both sides of the filter cover 220 can be quickly adjusted to allow the filter cover 220 to rotate efficiently without friction, and at the same time, the filter cover 220 can be cleaned in a closed environment to avoid affecting the filter cover 220 that is filtering air normally on the outside, thereby ensuring efficient and stable air filtration; and the annular filter body 200 has a compact structure and occupies a small space, which is convenient for the arrangement of other structures.

[0043] It should also be noted that the first sealing portion 411 pushes the corresponding filter cover 220 from the outside to move inward and seal with the second sealing portion 421, and double-sided sealing can be achieved through a set of telescopic structures, which simplifies the structural design inside the air filter and achieves an efficient sealing design; at the same time, the filter cover 220 here is designed to be flexible. During the process of the first sealing portion 411 pushing the two sides of the filter cover 220 to move inward from both sides, the middle position of the filter cover 220 slightly bulges toward the outside. At this time, the outer surface of the filter cover 220 is in a slightly expanded state, and its outer surface area increases and changes, and the strength between the filter cover 220 and the dust and impurities attached to its surface is reduced, which is convenient for subsequent purification mechanisms to clean, thereby improving the efficiency of cleaning the surface of the filter cover 220.

[0044] Furthermore, a positioning device 300 is installed on the outside of the filter body 200, and the positioning device 300 can be used to limit the installation of the filter body 200 and the purification device 400; the filter body 200 here includes at least two vertically arranged positioning bars 210, and the filter cover 220 is installed between adjacent positioning bars 210. The positioning bars 210 and the filter cover 220 together form a ring-shaped filter body 200, and a driving component 230 for controlling the rotation of the filter body 200 is installed on the surface of the positioning device 300. The driving component 230 here is selected as an annular structure, and the bottom is connected to multiple positioning bars 210, and the top is connected to an electric control device; the positioning bars 210 and the filter cover 220 are detachably connected to each other, and together form a ring-shaped filter body 200; the filter body 200 designed with the above structure is easy to disassemble and replace, and at the same time, the positioning bars 210 can enhance the sealing and strengthen the overall structure.

[0045] It should be noted here that the positioning device 300 here includes an upper positioning component 310 and a lower positioning component 320. An exhaust pipe 311 is arranged on the top of the upper positioning component 310 and is connected to the air outlet channel 121. Purification component 1 410 and purification component 2 420 are both installed between the upper positioning component 310 and the lower positioning component 320 to achieve limited fixation and ensure the stability of the overall structure.

[0046] Please refer to the attached Figure 3 -Attached Figure 4, as the first embodiment of the filter body 200; the positioning strips 210 here are symmetrically arranged as two, the purification device 400 includes a continuous purification component 1 410 and a continuous purification component 2 420, the filter cover 220 only needs to be designed as two groups, and the angle between the arc edges on both sides of the filter cover 220 is designed to be between 170°-175°, which solves the semicircular design; the angle formed by the edges of the continuous purification component 1 410 and the purification component 2 420 on both sides is designed to be greater than 180°; the two filter covers 220 can be alternately in the filtering and cleaning states to achieve continuous clean filtration of the air.

[0047] Through the above structural design, the internal structure is simple, and the subsequent disassembly and maintenance are relatively simple, which is suitable for air filters with smaller surface sizes.

[0048] Please refer to the attached Figure 5 -Attached Figure 6 , as the second embodiment of the filter body 200; the positioning strips 210 here are set to an even number of multiple, the purification device 400 includes a plurality of purification components 410 arranged at intervals and a plurality of purification components 420 arranged at intervals. Taking the four shown in the accompanying drawings as an example, the filter body 200 is composed of four identical filter covers 220 to form a ring structure; at the same time, the purification components 410 and the purification components 420 here are symmetrically designed into two groups; during the rotation of the multiple filter covers 220, the filter covers 220 in different areas can enter between the corresponding purification components 410 and the purification components 420, and symmetrically realize cleaning and purification.

[0049] Through the above structural design, the cleaning and filtering filter covers 220 are both symmetrically designed, and the airflow can pass through the filter cover 220 from different directions for efficient purification. The above structural size is a larger air filter.

[0050] Please refer to the attached Figure 8 And attached Fig. 9 Specifically, the side wall of the first sealing portion 411 is provided with a protractable first sealing component, and the side wall of the second sealing portion 421 is provided with a second sealing component 4211. After the first sealing component is extended, it moves toward the second sealing component 4211, pushing the filter cover 220 and the second sealing component 4211 to press tightly together to complete the sealing. The first sealing component is extended to press tightly against the outer surface of the filter cover 220, and in the process of the first sealing component continuing to extend, it can push the two sides of the filter cover 220 to move inward, and finally the inner surface of the filter cover 220 is pressed tightly against the surface of the second sealing component 4211, thereby realizing the double-sided sealing of the filter cover 220.

[0051] A second sealing opening 212 is opened on the outside of the first sealing opening 211, and a first sealing opening 211 is opened on the inside. The first sealing component can extend into the second sealing opening 212 to form a sealing structure with a U-shaped cross-section. Similarly, the second sealing component 4211 can extend into the first sealing opening 211 to also form a sealing structure with a U-shaped cross-section, thereby further enhancing the sealing effect on both sides of the filter cover 220.

[0052] The preferred first sealing component includes a vertically arranged sealing block 4111 and an elastic airbag 4112 located on the inner side of the sealing block 4111. The surface of the elastic airbag 4112 is connected to the surface of the sealing block 4111. The elastic airbag 4112 is externally connected to an electrically controlled air pump. By pumping gas into the elastic airbag 4112, the elastic airbag 4112 is controlled to expand in a predetermined direction, thereby pushing the sealing block 4111 to move outward, thereby achieving a tight seal on the filter cover 220. The elastic airbag 4112 is controlled to deflate. During this process, the elastic airbag 4112 deflates and contracts, and under the action of elasticity, it can pull the sealing block 4111 to move inward and return to its initial position. Through the above-mentioned structural design, the overall structural control is simple, the control efficiency is high, and the final sealing effect is good.

[0053] Specifically; the first purification part 412 is concave to form a first purification chamber 4121, and the second purification part 422 is concave to form a second purification chamber 4221. The purification mechanism includes a pump air pipeline connected to the second purification chamber 4221. The first purification chamber 4121 is connected to a negative pressure pipeline. A purified air flow is formed between the pump air pipeline and the negative pressure pipeline. The pump air pipeline is externally connected to a high-pressure pump air cleaning device to control the second purification chamber 4221 to be in a high-pressure state. The high-pressure gas passes through the multiple filter holes 221 in reverse, and can reversely flush the dust impurities accumulated in the filter holes 221, thereby ensuring the cleanliness of the inside of the filter holes 221 and the outer surface of the filter cover 220.

[0054] Reverse cleaning can be performed through the above-mentioned structure, and combined with the filter cover 220 that is bent toward the outside, the high-pressure airflow can accelerate the rapid detachment of impurities attached to the outer surface of the filter cover 220, and the impurities are discharged centrally through the negative pressure pipe to achieve centralized collection, thereby avoiding repeated contamination of the outer surface of the filter cover 220 caused by remaining in the first purification chamber 4121, thereby ensuring that the outer surface of the filter cover 220 is thoroughly cleaned.

[0055] Furthermore, in order to further improve the purification and cleaning effect on the surface of the filter cover 220, a pneumatic cleaning device 500 is arranged inside the first purification chamber 4121, and the pneumatic cleaning device 500 is against the outer surface of the convex filter cover 220. The pneumatic cleaning device 500 moves toward the first side of the first purification chamber 4121 under the action of gas, and the pneumatic cleaning device 500 can blow out an airflow tangential to the surface of the filter cover 220, and clean the difficult-to-clean area of ​​the outer surface of the filter cover 220 on the outside. At the same time, the pneumatic cleaning device 500 moves toward the first side During the process, the outer side of the filter cover 220 can be frictionally cleaned, further improving the cleaning effect of the surface of the filter cover 220; at the same time, during the rotation of the filter cover 220, the pneumatic cleaning device 500 is driven to move toward the second side of the first purification chamber 4121, and the rotation of the filter cover 220 can drive the pneumatic cleaning device 500 to reset to the initial position, thereby realizing automatic resetting of the pneumatic cleaning device 500 and preparing for the next cleaning of the surface of the filter cover 220; the above structure further simplifies the internal structural design of the air filter and simplifies the control process.

[0056] A magnetic attraction device may be designed between the pneumatic cleaning device 500 and the filter cover 220 to achieve synchronous movement of the two. Similarly, a retractable locking and cross structure may be designed to drive the pneumatic cleaning device 500 to move toward the second side.

[0057] Specifically; the pneumatic cleaning device 500 includes a cleaning base 510 slidably connected to the first purification chamber 4121, a pneumatic cleaning rod 520 is fixed to the upper end of the cleaning base 510, and a cleaning protrusion 522 and an air blowing opening 521 are installed on the side wall of the pneumatic cleaning rod 520. The air blowing opening 521 continuously blows out gas, which can enhance the cleaning of the surface of the filter cover 220 and accelerate the sedimentation of impurities; and the cleaning protrusion 522 can be tightly pressed against the outer surface of the filter cover 220 after the protrusion, to achieve friction cleaning of the surface of the filter cover 220, and enhance the cleaning effect of the surface of the filter cover 220.

[0058] Specifically, a plurality of guide plates facing downward are arranged inside the air blowing opening 521, and the plurality of guide plates are arranged at intervals and extend in the vertical direction. Through the action of the guide plates, the airflow blown out from the air blowing opening 521 flows toward the lower side, which can blow the impurities in the first purification chamber 4121 toward the downward direction, thereby accelerating the sedimentation of dust impurities. The gas blown out from the air blowing opening 521 can carry negative ions, which can further accelerate the sedimentation of some dust impurities under the action of the electric field.

[0059] The present invention is further described below in conjunction with an air filtration method.

[0060] The specific steps include:

[0061] S1. Control the airflow to pass through the filter cover 220 from the outside to the inside, so as to achieve efficient filtering and purification of the airflow.

[0062] S2, when the impurities on the surface of the filter cover 220 exceed a set threshold, the filter cover 220 is controlled to rotate between the purification component 1 410 and the purification component 2 420.

[0063] S3. Control the first sealing part 411 to move toward the second sealing part 421, continuously complete the sealing of the filter cover 220, and then complete the purification and cleaning of the surface of the filter cover 220 through the purification structure; at the same time, the second group of filter covers 220 can be located at the outer position to achieve continuous purification of the airflow, greatly improving the efficiency of air purification, and no manual operation is required, the operation is simpler, and the cleaning effect of the surface of the filter cover 220 is also improved. Good sealing and isolation also avoids affecting normal airflow filtration.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-resistance energy-saving air filter, comprising a filter housing (100) and a filter body (200) installed inside the filter housing (100), wherein a purification device (400) is arranged outside the filter body (200), characterized in that: The filter body (200) is in a closed annular shape and comprises at least two filter covers (220); the purification device (400) comprises a purification component 1 (410) arranged on the outside of the filter body (200) and a purification component 2 (420) arranged on the inside of the filter body (200); the purification component 1 (410) comprises a first purification part (412) and a first sealing part (411) installed on both sides of the first purification part (412); the purification component 2 (420) comprises a second purification part (422) and a second sealing part (421) installed on both sides of the second purification part (422); a purification mechanism is installed between the first sealing part (411) and the second sealing part (421); When the amount of impurities on the surface of the filter cover (220) exceeds a set threshold, the filter cover (220) is controlled to rotate between the purification component 1 (410) and the purification component 2 (420), and the first sealing portion (411) located on the outside moves toward the second sealing portion (421) located on the inside, so that the middle position of the filter cover (220) is controlled to bulge slightly toward the outside, thereby continuously completing the sealing and purification of the filter cover (220); The side wall of the first sealing portion (411) is provided with a protruding first sealing component, and the side wall of the second sealing portion (421) is provided with a second sealing component (4211); after the first sealing component is protruded, it moves towards the second sealing component (4211) to push the filter cover (220) and the second sealing component (4211) tightly together to complete the sealing; After the surface of the filter cover (220) is cleaned, the sealing effects of the first sealing portion (411) and the second sealing portion (421) and the two sides of the filter cover (220) are adjusted to allow the filter cover (220) to rotate efficiently without friction.

2. A low resistance energy-saving air filter according to claim 1, characterized in that: A positioning device (300) is installed on the outside of the filter body (200); the filter body (200) comprises at least two vertically arranged positioning bars (210); the filter cover (220) is installed between adjacent positioning bars (210); the positioning bars (210) and the filter cover (220) together form an annular filter body (200); and a driving component (230) for controlling the rotation of the filter body (200) is installed on the surface of the positioning device (300).

3. A low resistance energy-saving air filter according to claim 2, characterized in that: The positioning strips (210) are symmetrically arranged in two, and the purification device (400) comprises a continuous purification component one (410) and a continuous purification component two (420).

4. A low resistance energy-saving air filter according to claim 2, characterized in that: The positioning bars (210) are arranged in an even number, and the purification device (400) comprises a plurality of purification components one (410) arranged at intervals and a plurality of purification components two (420) arranged at intervals.

5. The low resistance energy-saving air filter according to claim 1, characterized in that: The first sealing assembly comprises a vertically arranged sealing block (4111) and an elastic airbag (4112) located inside the sealing block (4111), and a surface of the elastic airbag (4112) is connected to a surface of the sealing block (4111).

6. A low resistance energy-saving air filter according to claim 1, characterized in that: The first purification part (412) is concave to form a first purification chamber (4121), and the second purification part (422) is concave to form a second purification chamber (4221). The purification mechanism includes a pump air pipeline connected to the second purification chamber (4221), and the first purification chamber (4121) is connected to a negative pressure pipeline, and a purified airflow is formed between the pump air pipeline and the negative pressure pipeline.

7. A low resistance energy-saving air filter according to claim 6, characterized in that: A pneumatic cleaning device (500) is arranged inside the first purification chamber (4121), and the pneumatic cleaning device (500) is in contact with the outer surface of the protruding filter cover (220). The pneumatic cleaning device (500) moves toward the first side of the first purification chamber (4121) under the action of gas, and the filter cover (220) drives the pneumatic cleaning device (500) to move toward the second side of the first purification chamber (4121) during rotation.

8. A low resistance energy-saving air filter according to claim 7, characterized in that: The pneumatic cleaning device (500) comprises a cleaning base (510) slidably connected to the first cleaning chamber (4121); a pneumatic cleaning rod (520) is fixed to the upper end of the cleaning base (510); a cleaning protrusion (522) and an air blowing opening (521) are installed on the side wall of the pneumatic cleaning rod (520).

9. A low resistance energy-saving air filter according to claim 8, characterized in that: A plurality of guide plates arranged downward are arranged inside the air blowing opening (521), and the plurality of guide plates are arranged at intervals and extend in the vertical direction.

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