Self-cleaning air filter

Abstract

The application discloses a self-cleaning air filter, which comprises an air filter assembly and a main pipeline installed at the input end of the air filter assembly, and further comprises: a transposition cylinder one and a transposition cylinder two which are rotatably connected at the interfaces of the two ends of the main pipeline respectively; a transposition cylinder three and a transposition cylinder four which are rotatably connected at the interfaces of the two ends of the auxiliary pipeline respectively, the interfaces of the transposition cylinder two and the transposition cylinder three are connected in communication through a backflow pipeline, and the interfaces of the transposition cylinder one and the transposition cylinder four are connected in communication through a cleaning pipeline; and the cleaning block moves in circulation along the inner cavities of the main pipeline, the backflow pipeline, the auxiliary pipeline and the cleaning pipeline in sequence. The application utilizes the flow of air to push the cleaning block to scrape water and impurities from the inner wall of the main pipeline during the movement, and then the cleaning block moves to the cleaning pipeline to collect the water and impurities, so that the inner wall of the pipeline can be cleaned regularly, and the service life of the air filter body is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air filters, in particular to a self-cleaning air filter. BACKGROUND

[0002] In modern industry, safe and inexhaustible compressed air is the second largest power source next to electricity, and is also a process gas source with multiple purposes. When compressed air is needed, an air filter needs to be installed in the middle of the pipeline to filter harmful substances such as a large amount of dust, condensed water, rust, oil stains, etc. in the air to avoid affecting the compressed air source.

[0003] In the prior art, there are impurities and moisture in the air in the pipeline system in front of the air filter. The accumulation of impurities and moisture in the pipeline can cause the pipeline to rust, and rust can also enter the pipeline, which can cause the pipeline to rust, thereby easily causing the air filter to be blocked, affecting the continuous production of the air equipment, and affecting the service life of the air filter. SUMMARY

[0004] Therefore, it is necessary to provide a self-cleaning air filter to solve the above technical problems. The flow of air pushes the cleaning block to move in the main pipeline towards the position of the second transposition barrel. The cleaning block scrapes water and impurities from the inner wall of the main pipeline during the movement and is collected at the cleaning pipeline, thereby facilitating regular cleaning of the inner wall of the pipeline and improving the service life of the air filter body.

[0005] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0006] A self-cleaning air filter, comprising an air filter assembly and a main pipeline installed at the input end of the air filter assembly, further comprising:

[0007] A first transposition barrel and a second transposition barrel are rotatably connected at the interfaces at both ends of the main pipeline;

[0008] A secondary pipeline, a third transposition barrel and a fourth transposition barrel are rotatably connected at the interfaces at both ends of the secondary pipeline, the interfaces at the second transposition barrel and the third transposition barrel are connected in communication through a return pipeline, and the interfaces at the first transposition barrel and the fourth transposition barrel are connected in communication through a cleaning pipeline;

[0009] A cleaning block, the cleaning block moves in circulation along the inner cavities of the main pipeline, the return pipeline, the secondary pipeline and the cleaning pipeline in sequence, and the middle parts of the first transposition barrel, the second transposition barrel, the third transposition barrel and the fourth transposition barrel are provided with through holes matched with the outer diameter of the cleaning block.

[0010] As one preferred implementation form of the self-cleaning air filter, the end of the cleaning block is arc-shaped structure, the outer ring of the cleaning block is provided with a plurality of annular structure containing grooves, the end of the transposition cylinder two away from the transposition cylinder one is provided with a stopper, the cleaning block scrapes the moisture and impurities on the inner wall of the main pipeline when moving in the main pipeline, and collects in the containing groove, the stopper limits the movement of the cleaning block, and makes the air normally flow into the air purifier, so that the cleaning block moves in the transposition cylinder two.

[0011] As one preferred implementation form of the self-cleaning air filter, the cleaning pipeline is provided with an adsorption chamber, the adsorption chamber is connected with the inner cavity of the cleaning pipeline, one side of the adsorption chamber is connected with an adsorption pump assembly, and the adsorption pump assembly is provided with a driving assembly for driving the adsorption pump assembly to operate.

[0012] As one preferred implementation form of the self-cleaning air filter, the cleaning pipeline is provided with an adsorption chamber, the adsorption chamber is connected with the inner cavity of the cleaning pipeline, one side of the adsorption chamber is connected with an adsorption pump assembly, and the adsorption pump assembly is provided with a driving assembly for driving the adsorption pump assembly to operate.

[0013] As one preferred implementation form of the self-cleaning air filter, the cleaning pipeline is provided with an adsorption chamber, the adsorption chamber is connected with the inner cavity of the cleaning pipeline, one side of the adsorption chamber is connected with an adsorption pump assembly, and the adsorption pump assembly is provided with a driving assembly for driving the adsorption pump assembly to operate.

[0014] As one preferred implementation form of the self-cleaning air filter provided by the present application, the connecting rods of the transposition cylinders two, three and four are connected in series through the linkage chain assembly, and the linkage chain assembly is connected with a driving rod for driving the linkage chain assembly to operate.

[0015] As one preferred implementation form of the self-cleaning air filter provided by the present application, the driving assembly comprises a driving motor and a rotating shaft connected with the driving motor, and the rotating shaft is connected with the rotating shaft of the adsorption pump assembly through the gear set, and the driving motor drives the rotating shaft to rotate and drives the adsorption pump assembly to operate.

[0016] As one preferred implementation form of the self-cleaning air filter provided by the present application, the rotating shaft of the driving motor is provided with a bevel gear one, the two sides of the bevel gear one are respectively engaged with a bevel gear two and a bevel gear three, and the rotating shaft is connected with the bevel gear two and the bevel gear three, and a one-way ratchet assembly is installed between the rotating shaft and the bevel gear two and the bevel gear three, for controlling the bevel gear two or the bevel gear three to drive the rotating shaft to rotate alone, and through the one-way driving action of the one-way ratchet assembly, when the bevel gear one rotates forward, the bevel gear two rotates and drives the rotating shaft to rotate forward through the one-way ratchet assembly, and when the bevel gear one reverses, the bevel gear three rotates and drives the rotating shaft to rotate forward through the one-way ratchet assembly, so that the rotating shaft can still rotate in the same direction through the forward and reverse rotation of the bevel gear one, and continuously drive the adsorption pump assembly to rotate.

[0017] As one preferred implementation form of the self-cleaning air filter provided by the present application, the one-way ratchet assembly comprises a ratchet and a pawl, the pawl at the bevel gear two and the bevel gear three is installed with the bevel gear two and the bevel gear three, and the ratchet at the bevel gear two and the bevel gear three is installed with the rotating shaft, and the ratchets on the bevel gear two and the bevel gear three are arranged in parallel, so that the rotating shaft can still rotate in the same direction through the forward and reverse rotation of the bevel gear one, and continuously drive the adsorption pump assembly to rotate.

[0018] As a preferred embodiment of the self-cleaning air filter provided by the application, the driving shaft of the driving motor is connected with the rotating disc through a belt pulley assembly, the rotating disc and the driving rod are rotationally connected, and a one-way ratchet assembly is installed between the rotating disc and the driving rod, so that when the rotating shaft of the driving motor reversely rotates, the rotating disc rotates to drive the driving rod to rotate through the one-way ratchet assembly, and the rotation of the displacement ball cylinder two, the displacement ball cylinder three and the displacement ball cylinder four is controlled, and when the rotating shaft of the driving motor forwardly rotates, the rotating disc does not drive the driving rod to operate, so that the independent operation of the adsorption pump assembly and the driving rod is controlled through the forward and reverse rotation of the rotating shaft of the driving motor, and the independent operation and the linkage operation of the two are controlled.

[0019] Compared with the prior art, the application has the following beneficial effects:

[0020] 1. The self-cleaning air filter provided by the application can control the orientation of the through hole by controlling the rotation of the displacement ball cylinder one, the displacement ball cylinder two, the displacement ball cylinder three and the displacement ball cylinder four, so that the cleaning block located in the main pipeline can be sequentially moved along the inner cavities of the main pipeline, the return pipeline, the auxiliary pipeline and the cleaning pipeline, the air flow is used to push the cleaning block to move in the main pipeline to the displacement ball cylinder two, the water and impurities on the inner wall of the main pipeline are scraped by the cleaning block during the movement, and the cleaning block is moved to the cleaning pipeline for collection, so that the inner wall of the pipeline can be regularly cleaned, and the service life of the air filter body is improved.

[0021] 2. The self-cleaning air filter provided by the application uses the air flow to push the cleaning block to move in the main pipeline to the displacement ball cylinder two, the water and impurities on the inner wall of the main pipeline are scraped by the cleaning block during the movement, and the cleaning block is moved to the cleaning pipeline for collection, the driving assembly is used to drive the adsorption pump assembly to operate, a negative pressure adsorption effect is achieved on the inner cavity of the adsorption chamber, and the air is moved through the main pipeline, the return pipeline, the auxiliary pipeline and the cleaning pipeline, and the water and impurities on the cleaning block moved to the cleaning pipeline are collected by negative pressure adsorption.

[0022] 3. The self-cleaning air filter provided by the application uses the one-way driving effect of the one-way ratchet assembly, when the bevel gear one forwardly rotates, the bevel gear two rotates and drives the rotating shaft to forwardly rotate through the one-way ratchet assembly, when the bevel gear one reversely rotates, the bevel gear three rotates and drives the rotating shaft to forwardly rotate through the one-way ratchet assembly, so that the rotating shaft can still be driven to rotate in the same direction through the forward and reverse rotation of the bevel gear one, and the adsorption pump assembly is continuously driven to rotate; when the rotating shaft of the driving motor reversely rotates, the rotating disc rotates to drive the driving rod to rotate through the one-way ratchet assembly, and the rotation of the displacement ball cylinder two, the displacement ball cylinder three and the displacement ball cylinder four is controlled, and when the rotating shaft of the driving motor forwardly rotates, the rotating disc does not drive the driving rod to operate, so that the independent operation of the adsorption pump assembly and the driving rod is controlled through the forward and reverse rotation of the rotating shaft of the driving motor, and the independent operation and the linkage operation of the two are controlled. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a partial structural cross-sectional view provided by the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the cleaning block provided by the present invention after cleaning the main pipeline;

[0027] Figure 4 This is a schematic diagram of the cleaning block structure provided by the present invention;

[0028] Figure 5 A schematic diagram of the linkage chain assembly and drive rod structure provided by the present invention;

[0029] Figure 6 A schematic diagram of the one-way ratchet assembly structure at three points of the bevel gear provided by the present invention;

[0030] Figure 7 This is a schematic diagram of the one-way ratchet assembly structure at the second bevel gear provided by the present invention.

[0031] The markings in the diagram are explained as follows:

[0032] 1. Main pipe; 2. Return pipe; 3. Secondary pipe; 4. Cleaning pipe; 5. Adsorption chamber; 6. Adsorption pump assembly; 7. Drive assembly; 8. Transposition ball cylinder one; 9. Transposition ball cylinder two; 10. Transposition ball cylinder three; 11. Transposition ball cylinder four; 12. Push rod; 13. Cleaning block; 14. Stopper; 15. Linkage chain assembly; 16. Drive rod; 17. Limiting grid; 18. Drive motor; 19. Turntable; 20. One-way ratchet assembly; 21. Bevel gear one; 22. Bevel gear two; 23. Bevel gear three; 24. Rotating shaft. Detailed Implementation

[0033] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should belong to the protection scope of the present application.

[0034] As described in the background, there are impurities and moisture in the pipeline system air in front of the air filter, and the accumulation of impurities and moisture in the pipeline will cause the pipeline to rust, and the rust will also enter the pipeline, which will cause the pipeline to rust, thereby easily causing the air filter to be blocked.

[0035] Specifically, refer to Figures 1 to 7 An air filter with self-cleaning function comprises an air filter assembly and a main pipeline 1 installed at the input end of the air filter assembly, and further comprises:

[0036] A displacement cylinder 1 8 and a displacement cylinder 2 9 are rotatably connected at the interfaces of both ends of the main pipeline 1 respectively;

[0037] A sub-pipeline 3 is rotatably provided with a displacement cylinder 3 10 and a displacement cylinder 4 11 at the interfaces of both ends of the sub-pipeline 3, the interfaces of the displacement cylinder 2 9 and the displacement cylinder 3 10 are connected in communication through a backflow pipeline 2, and the interfaces of the displacement cylinder 1 8 and the displacement cylinder 4 11 are connected in communication through a cleaning pipeline 4;

[0038] A cleaning block 13 is circularly movable along the inner cavities of the main pipeline 1, the backflow pipeline 2, the sub-pipeline 3 and the cleaning pipeline 4 in sequence, and the middle parts of the displacement cylinder 1 8, the displacement cylinder 2 9, the displacement cylinder 3 10 and the displacement cylinder 4 11 are all provided with through holes matched with the outer diameter of the cleaning block 13.

[0039] The air filter with self-cleaning function provided by the present application can control the orientation of the through holes by controlling the rotation of the displacement cylinder 1 8, the displacement cylinder 2 9, the displacement cylinder 3 10 and the displacement cylinder 4 11, so that the cleaning block 13 in the main pipeline 1 can be circularly movable along the inner cavities of the main pipeline 1, the backflow pipeline 2, the sub-pipeline 3 and the cleaning pipeline 4 in sequence. The flow of air can push the cleaning block 13 to move in the main pipeline 1 towards the displacement cylinder 2 9, the cleaning block 13 can scrape water and impurities from the inner wall of the main pipeline 1 during the movement, and the cleaning block 13 can be collected at the cleaning pipeline 4, so that the inner wall of the pipeline can be regularly cleaned, and the service life of the air filter body can be improved.

[0040] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings of the embodiments of the present application, so that those skilled in the art can better understand the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should belong to the protection scope of the present application.

[0041] It should be noted that the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other without conflict.

[0042] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Embodiments

[0043] Please refer to Figures 1 to 3 A self-cleaning air filter includes an air filter assembly and a main pipeline 1 installed at the input end of the air filter assembly, a transposition cylinder one 8 and a transposition cylinder two 9 are rotatably connected at the interfaces at both ends of the main pipeline 1, a transposition cylinder three 10 and a transposition cylinder four 11 are rotatably connected at the interfaces at both ends of the auxiliary pipeline 3, by controlling the rotation of the transposition cylinder one 8, the transposition cylinder two 9, the transposition cylinder three 10 and the transposition cylinder four 11, the orientation of the through hole thereof can be controlled, and the cleaning block 13 can be conveniently transferred to different pipelines.

[0044] It is worth mentioning that, as Figure 2 and Figure 3 shown, the interfaces at the transposition cylinder two 9 and the transposition cylinder three 10 are connected through the return pipeline 2, and the interfaces at the transposition cylinder one 8 and the transposition cylinder four 11 are connected through the cleaning pipeline 4, which can connect the inner cavities of the main pipeline 1, the return pipeline 2, the auxiliary pipeline 3 and the cleaning pipeline 4 in series, facilitate the discharge of impurities after cleaning the inner cavity of the main pipeline 1, and the outer circle of the transposition cylinder three 10 and the transposition cylinder four 11 is provided with a through hole, which facilitates the continuous connection of the return pipeline 2, the auxiliary pipeline 3 and the cleaning pipeline 4 during the rotation of the transposition cylinder three 10 and the transposition cylinder four 11, a through hole is formed on one side of the transposition cylinder two 9, by controlling the orientation of the through hole on the transposition cylinder two 9, the connection and closing of the main pipeline 1 and the return pipeline 2 can be controlled, and when the main pipeline 1 normally conveys air, the rotation of the transposition cylinder two 9 and the transposition cylinder one 8 is controlled to limit the connection of the main pipeline 1 with the return pipeline 2 and the cleaning pipeline 4.

[0045] In addition, the cleaning pipeline 4 is provided with an adsorption chamber 5, the adsorption chamber 5 is connected with the inner cavity of the cleaning pipeline 4, one side of the adsorption chamber 5 is connected with an adsorption pump assembly 6, and a driving assembly 7 is installed on the adsorption pump assembly 6 to drive the adsorption pump assembly 6 to operate, the driving assembly 7 drives the adsorption pump assembly 6 to operate, which has a negative pressure adsorption effect on the inner cavity of the adsorption chamber 5, and moves the air through the main pipeline 1, the return pipeline 2, the auxiliary pipeline 3 and the cleaning pipeline 4, and collects the moisture and impurities on the cleaning block 13 in the cleaning pipeline 4 by negative pressure adsorption.

[0046] In this embodiment, asFigures 2 to 4 As shown, the cleaning block 13 is sequentially moved along the inner cavities of the main pipeline 1, the return pipeline 2, the auxiliary pipeline 3 and the cleaning pipeline 4, the end of the cleaning block 13 is arc-shaped, a plurality of annular accommodating grooves are arranged on the outer ring of the cleaning block 13, when the cleaning block 13 moves in the main pipeline 1, the water and impurities on the inner wall of the main pipeline 1 are scraped and collected in the accommodating grooves, the blocking plug 14 is installed at the end of the transposition cylinder two 9 away from the transposition cylinder one 8, the blocking plug 14 limits the movement of the cleaning block 13, and makes the air flow into the air purifier normally, so that the cleaning block 13 moves in the transposition cylinder two 9, and the middle parts of the transposition cylinder one 8, the transposition cylinder two 9, the transposition cylinder three 10 and the transposition cylinder four 11 are provided with through holes matched with the outer diameter of the cleaning block 13, by controlling the rotation of the transposition cylinder one 8, the transposition cylinder two 9, the transposition cylinder three 10 and the transposition cylinder four 11, the orientation of the through holes can be controlled, so that the cleaning block 13 in the main pipeline 1 can be sequentially moved along the inner cavities of the main pipeline 1, the return pipeline 2, the auxiliary pipeline 3 and the cleaning pipeline 4, the air flow is used to push the cleaning block 13 to move in the main pipeline 1 to the transposition cylinder two 9, and the water and impurities on the inner wall of the main pipeline 1 are scraped by the cleaning block 13 during the movement and moved to the cleaning pipeline 4 for collection.

[0047] In the embodiment, as shown in the figure, Figure 3 The limiting grid 17 is installed between the cleaning pipeline 4 and the inner cavity of the adsorption chamber 5, the pushing rod 12 is vertically inserted at the top interface of the cleaning pipeline 4, the outer ring of the cleaning block 13 is limited by the installed limiting grid 17, so that the impurities on the outer ring of the cleaning block 13 can be easily collected by the adsorption pump assembly 6 and the adsorption chamber 5, the cleaning block 13 in the cleaning pipeline 4 is pushed into the transposition cylinder one 8 by the pushing rod pushing rod 12 and transferred into the main pipeline 1.

[0048] In addition, as shown in the figure, Figure 5 The connecting rods are fixed on the sides of the transposition cylinder one 8, the transposition cylinder two 9, the transposition cylinder three 10 and the transposition cylinder four 11 perpendicular to the through holes, the connecting rods of the transposition cylinder two 9, the transposition cylinder three 10 and the transposition cylinder four 11 are connected in series through the linkage chain assembly 15, the driving rod 16 is connected to the linkage chain assembly 15 for driving the linkage chain assembly 15 to operate, the driving rod 16 drives the transposition cylinder two 9, the transposition cylinder three 10 and the transposition cylinder four 11 to rotate by controlling the rotation of the connecting rods, so as to control the orientation of the through holes, and the rotation of the transposition cylinder one 8 can be manually controlled to control whether the main pipeline 1 is communicated with the cleaning pipeline 4. Embodiment

[0049] The self-cleaning air filter provided in embodiment 1 is further optimized, specifically, as shown in the figure, Figures 6 to 7As shown, the driving assembly 7 comprises a driving motor 18 and a rotating shaft 24 connected with the driving motor 18, the rotating shaft 24 is connected with the rotating shaft of the adsorption pump assembly 6 through a gear set, the rotating shaft 24 is driven to rotate by the driving motor 18, and the adsorption pump assembly 6 is driven to operate.

[0050] It is worth mentioning that the rotating shaft of the driving motor 18 is provided with a bevel gear one 21, the two sides of the bevel gear one 21 are respectively provided with a bevel gear two 22 and a bevel gear three 23, the rotating shaft 24 is rotatably connected with the bevel gear two 22 and the bevel gear three 23, and a one-way ratchet assembly 20 is arranged between the rotating shaft 24 and the bevel gear two 22 and the bevel gear three 23, so as to control the bevel gear two 22 or the bevel gear three 23 to drive the rotating shaft 24 to rotate alone, through the one-way driving action of the one-way ratchet assembly 20, when the bevel gear one 21 rotates forward, the bevel gear two 22 is driven to rotate and the rotating shaft 24 is driven to rotate forward through the one-way ratchet assembly 20, when the bevel gear one 21 reverses, the bevel gear three 23 is driven to rotate and the rotating shaft 24 is driven to rotate forward through the one-way ratchet assembly 20, so that the rotating shaft 24 can still be driven to rotate in the same direction through the forward and reverse rotation of the bevel gear one 21, and the adsorption pump assembly 6 is continuously driven to rotate.

[0051] As shown in Figure 6 and Figure 7 As shown, the one-way ratchet assembly 20 comprises a ratchet and a pawl, the pawl located at the bevel gear two 22 and the bevel gear three 23 is installed with the bevel gear two 22 and the bevel gear three 23, the ratchet located at the bevel gear two 22 and the bevel gear three 23 is installed with the rotating shaft 24, and the ratchets located on the bevel gear two 22 and the bevel gear three 23 are arranged in parallel, so that the rotating shaft 24 can still be driven to rotate in the same direction through the forward and reverse rotation of the bevel gear one 21, and the adsorption pump assembly 6 is continuously driven to rotate.

[0052] In the embodiment, the driving shaft of the driving motor 18 is connected with the rotating disc 19 through a belt wheel assembly, the rotating disc 19 and the driving rod 16 are rotatably connected, and the one-way ratchet assembly 20 is arranged between the rotating disc 19 and the driving rod 16, so that when the rotating shaft of the driving motor 18 reverses, the rotating disc 19 drives the driving rod 16 to rotate through the one-way ratchet assembly 20, the displacement cylinder two 9, the displacement cylinder three 10 and the displacement cylinder four 11 are controlled to rotate, and when the rotating shaft of the driving motor 18 rotates forward, the rotating disc 19 does not drive the driving rod 16 to operate, so as to control the independent operation of the adsorption pump assembly 6 and the driving rod 16 through the forward and reverse rotation of the rotating shaft of the driving motor 18, and control the linkage operation of the two.

[0053] In this application, unless otherwise clearly indicated and limited, the terms "mounting", "connection", "connecting", "fixed", and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0054] Obviously, the above-described embodiments are only a part of the embodiments of the present application, and are not all the embodiments. The preferred embodiments of the present application are shown in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or make equivalent substitutions for part of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly applied to other related technical fields, is also within the patent protection scope of the present application.

Claims

1. A self-cleaning air filter comprising an air filter assembly and a main duct (1) mounted at the input of the air filter assembly, characterized in that, Also include: The interface at both ends of the main pipeline (1) is respectively connected with transposition cylinder one (8) and transposition cylinder two (9) rotatingly; The secondary pipeline (3) is respectively rotatingly provided with transposition cylinder three (10) and transposition cylinder four (11) at the interface at both ends of the secondary pipeline (3), the interface at the transposition cylinder two (9) and the transposition cylinder three (10) is connected through the backflow pipeline (2), the interface at the transposition cylinder one (8) and the transposition cylinder four (11) is connected through the cleaning pipeline (4); The cleaning block (13) is sequentially circulated in the inner cavity of the main pipeline (1), the backflow pipeline (2), the secondary pipeline (3) and the cleaning pipeline (4), and the middle part of the transposition cylinder one (8), the transposition cylinder two (9), the transposition cylinder three (10) and the transposition cylinder four (11) is provided with a through hole matched with the outer diameter of the cleaning block (13); The outer circle of the transposition cylinder three (10) and the transposition cylinder four (11) is provided with a through hole, which is convenient for the backflow pipeline (2), the secondary pipeline (3) and the cleaning pipeline (4) to be always connected during the rotation of the transposition cylinder three (10) and the transposition cylinder four (11), the side of the transposition cylinder two (9) is provided with a through hole, the connection and closing of the main pipeline (1) and the backflow pipeline (2) can be controlled by controlling the direction of the through hole on the transposition cylinder two (9), the rotation of the transposition cylinder two (9) and the transposition cylinder one (8) is controlled when the main pipeline (1) normally transports air, and the connection of the main pipeline (1) and the backflow pipeline (2) and the cleaning pipeline (4) is limited; The cleaning pipeline (4) is provided with an adsorption chamber (5), the adsorption chamber (5) and the inner cavity of the cleaning pipeline (4) are connected, one side of the adsorption chamber (5) is connected with an adsorption pump assembly (6), the adsorption pump assembly (6) is installed with a driving assembly (7) for driving the adsorption pump assembly (6) to operate, the side of the transposition cylinder one (8), the transposition cylinder two (9), the transposition cylinder three (10) and the transposition cylinder four (11) perpendicular to the through hole is fixed with a connecting rod, the connecting rods at the transposition cylinder two (9), the transposition cylinder three (10) and the transposition cylinder four (11) are connected through a linkage chain assembly (15), the linkage chain assembly (15) is connected with a driving rod (16) for driving the linkage chain assembly (15) to operate, the driving assembly (7) includes a driving motor (18) and a rotating shaft (24) connected with the driving motor (18), the rotating shaft (24) is connected with the rotating shaft of the adsorption pump assembly (6) through a gear set, the driving shaft of the driving motor (18) is connected with a rotating disc (19) through a belt wheel assembly, the rotating disc (19) and the driving rod (16) are rotatingly connected, and a one-way ratchet assembly (20) is installed between the rotating disc (19) and the driving rod (16); The rotation shaft of the driving motor (18) is provided with a bevel gear I (21), the two sides of the bevel gear I (21) are respectively provided with a bevel gear II (22) and a bevel gear III (23), the rotation shaft (24) is rotatably connected with the bevel gear II (22) and the bevel gear III (23), and the rotation shaft (24) is provided with a one-way ratchet assembly (20) between the bevel gear II (22) and the bevel gear III (23) for controlling the bevel gear II (22) or the bevel gear III (23) to drive the rotation shaft (24) to rotate.

2. A self-cleaning air filter according to claim 1, wherein The end of the cleaning block (13) is of an arc structure, a plurality of annular accommodating grooves are formed in the outer ring of the cleaning block (13), and a plug (14) is arranged at the end of the transposition cylinder II (9) away from the transposition cylinder I (8).

3. A self-cleaning air filter according to claim 2, wherein A limiting grid (17) is arranged between the cleaning pipeline (4) and the inner cavity of the adsorption chamber (5), and a push rod (12) is vertically inserted into the top interface of the cleaning pipeline (4).

4. A self-cleaning air filter according to claim 1, wherein The one-way ratchet assembly (20) comprises a ratchet and a pawl, the pawl at the bevel gear II (22) and the bevel gear III (23) is arranged on the bevel gear II (22) and the bevel gear III (23), and the ratchet at the bevel gear II (22) and the bevel gear III (23) is arranged on the rotation shaft (24).

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