Automatic cleaning equipment for bag filter

Abstract

The invention discloses automatic cleaning equipment for a bag filter, and relates to the technical field of cleaning equipment, the automatic cleaning equipment comprises a conveying belt used for conveying the position of a placing rack, and is characterized in that the conveying belt is arranged on the conveying belt; the auxiliary cleaning mechanism is used for carrying out preorder treatment on the bag type filter; the variable cleaning mechanism is used for improving the cleaning effect aiming at different bag type filters; the transmission mechanism is used for controlling the variable cleaning mechanism to work; and the auxiliary shaking mechanism is used for improving the cleaning effect of the variable cleaning mechanism. When the cleaning equipment is used for cleaning the bag type filter, the variable cleaning mechanism can be converted into a state similar to the shape of the bag type filter, so that the variable cleaning mechanism can be in contact with the inner wall of the bag type filter, and meanwhile, through the auxiliary shaking mechanism, the variable cleaning mechanism can clean the inner wall of the bag type filter. And the cleaning brush on the cleaning brush presents two different movement tracks, so that the cleaning degree is improved while the cleaning contact effect is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning equipment, and in particular to an automatic cleaning device for a bag filter. Background Art

[0002] A bag filter is a multi-purpose filtering device with novel structure, small volume, simple and flexible operation, energy saving, high efficiency, sealed operation and strong applicability. The bag filter is a new type of filtering system. Inside the bag filter, a filter bag is supported by a metal wire basket. Liquid flows in from the inlet, passes through the filter bag and flows out from the outlet, and impurities are intercepted in the filter bag.

[0003] After the bag filter is used for a long time, a large amount of impurities will adhere to its interior, causing its through holes to be blocked, so that normal filtering cannot be carried out. In order to make the bag filter work properly, it needs to be cleaned. During the cleaning process, in order to improve the cleaning efficiency, batch cleaning is required. When the existing cleaning equipment cleans the bag filter, a rotatable brush is often inserted into the filter to rotate back and forth to achieve the cleaning effect. However, in this cleaning method, the diameter of the brush is constant, while the bag filter has a shape that is smaller at the top and larger at the bottom. The brush with a constant size cannot adapt to the shape of the bag filter, resulting in poor cleaning effect. At the same time, during the cleaning process, many impurities will adhere to the brush and cannot be cleaned, and the cleaning track is relatively single, which will also affect the cleaning effect. Summary of the Invention

[0004] The technical solution of the present invention provides a solution significantly different from the prior art for the technical problem that the prior art solution is too single. The embodiment of the present invention provides an automatic cleaning device for a bag filter to solve the technical problem that due to the special shape of the existing bag filter, the cleaning effect is poor when using an ordinary rotating brush for cleaning.

[0005] The embodiment of the present invention adopts the following technical solution: An automatic cleaning device for a bag filter includes a placement rack for fixing the position of the bag filter, a conveyor belt for transporting the placement rack, and is characterized in that; it further includes an auxiliary cleaning mechanism for pre-processing the bag filter, a variable cleaning mechanism for improving the cleaning effect for different bag filters, a transmission mechanism for controlling the variable cleaning mechanism to work, and an auxiliary jitter mechanism for improving the cleaning effect of the variable cleaning mechanism.

[0006] Further, the cleaning mechanism includes a cleaning box, where a motorized lifting platform is arranged at the bottom inside the cleaning box. A support plate is arranged on the top of the lifting platform. An eccentric disk is arranged on the upper surface of the support plate. A reciprocating transmission rack is arranged beside the eccentric disk. The transmission rack and the eccentric disk are connected by a connecting rod. The eccentric disk is driven by a driving motor arranged below it. A matching plate is arranged above the support plate. A water spraying pipe is arranged above the matching plate. The water spraying pipe is connected to a water pump through a connecting pipe, and the water pump is located inside the cleaning box.

[0007] Further, the variable cleaning mechanism includes a variable connecting rod, a transmission belt, and a side cleaning component. First connecting rods and second connecting rods are respectively arranged on both sides of the variable connecting rod. A rotating sleeve is arranged at the end of the variable connecting rod. An electric telescopic rod is arranged below the rotating sleeve. The electric telescopic rod is located above the matching plate. The first connecting rod, the second connecting rod, and the variable connecting rod are connected by a connecting frame, and the connecting frame is slidably connected to the first connecting rod and the second connecting rod. A top connecting rod is arranged above the variable connecting rod. A telescopic guide rod is arranged between the top connecting rod and the rotating sleeve for position limitation. One section of the transmission belt is made of an elastic and stretchable material. The transmission belt sequentially passes through the top connecting rod, the first connecting rod, the variable connecting rod, and the second connecting rod to form a circulating conveyor. A number of cleaning brushes are arranged on the surface of the transmission belt, and a torsion spring top block is arranged on the side surface of the transmission belt.

[0008] Further, the first connecting rod and the second connecting rod are at the same height, and the variable connecting rod is higher than the first connecting rod. The first connecting rod, the second connecting rod, and the variable connecting rod are distributed in a triangular shape.

[0009] Further, the side cleaning component includes a retractable side wall scraper, and the retractable side wall scraper is limited by a deformable expansion sleeve between it and the telescopic guide rod.

[0010] Further, the transmission mechanism includes a transmission gear column, which is divided into a transmission tooth and a rotating column. The transmission tooth is meshed with the transmission rack. A ratchet connection is arranged between the transmission tooth and the rotating column. A bevel gear is arranged at the end of the rotating column. A matching bevel gear is arranged beside the bevel gear, and the matching bevel gear is arranged on the first connecting rod.

[0011] Furthermore, the auxiliary jitter mechanism includes a connecting block disposed on one side of the mating bevel gear, and the connecting block and the mating bevel gear are connected by a return spring. A guiding groove for limiting the lateral movement of the mating bevel gear is formed on the first connecting rod. A rotating rod is disposed inside the first connecting rod and the second connecting rod, and the rotating rod is slidably connected to the first connecting rod and the second connecting rod. A rotating block is disposed at the end of the rotating rod, and the rotating block is slidably connected to the support plate through a connecting rod. A mating abutting block is disposed inside the rotating block. End sleeves are disposed at the ends of the first connecting rod and the second connecting rod, and a plurality of abutting blocks for cooperating with the mating abutting block are distributed on one side of the end sleeve.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] First, by providing a variable cleaning mechanism, the cleaning effect is better than that of a traditional rotary brush during the cleaning process. During the cleaning process using the variable cleaning mechanism, first, a cleaning tool with a smaller upper part and a larger lower part that fits the shape of the bag filter can be formed, and during use, the movement trajectory is also a circular motion. Compared with the existing rotary brush with a rotary trajectory, each cleaning brush inside it contacts the inner wall of the bag filter at different positions during movement, and during its movement, it can also scrape the dust on the inner wall (the brush head with a circular motion has a relatively single cleaning track, and during the cleaning process, a large amount of particulate matter may still adhere to the inner wall. In the way of scraping and driving it to move downward, even if it adheres to the inner wall, it can be scraped down from top to bottom, so relatively speaking, the cleaning effect is better;

[0014] At the same time, when the brush moves to the bottom, it will contact the support plate, and the lower half is located in the water, which can achieve the effect of cleaning the brush in real time;

[0015] Secondly, because it presents the same trajectory as the bag filter, during the contact process with the bag filter, the size of the lower gap can be adjusted according to the cleaning of different bag filters, so as to ensure full contact with the bag filter. Compared with a rotary brush with a single size (if the upper and lower diameters of the bag filter vary greatly, at this time, the upper part of the rotary brush can enter, but the lower half cannot contact the bag filter, which will affect the cleaning effect, or a rotary brush with a larger diameter is selected. At this time, the lower half can be contacted, but the upper part may not be able to move to the top due to the large diameter of the rotary brush, resulting in certain limitations in the cleaning effect);

[0016] Second, during the use process, at this time, through the transmission mechanism and the reciprocating transmission rack, a plurality of auxiliary cleaning mechanisms can be moved in one direction, so that multiple bag filters can be cleaned simultaneously;

[0017] Thirdly, through the auxiliary jitter mechanism, when the auxiliary cleaning mechanism is working, it can also perform a certain degree of longitudinal movement, thereby reducing the influence brought by the transmission mechanism, and making the cleaning brush present two-directional movements in the horizontal and vertical directions during movement, further improving the cleaning effect.

[0018] In summary, when the cleaning device cleans the bag filter, by setting the variable cleaning mechanism, it can be transformed into a state similar to the shape of the bag filter, so as to ensure contact with the inner wall of the bag filter. At the same time, through the auxiliary jitter mechanism, when the variable cleaning mechanism is cleaning, the cleaning brush on it presents two different movement trajectories, thus improving the cleaning cleanliness while ensuring the cleaning contact effect. Brief Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the cleaning box of the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the auxiliary cleaning mechanism of the present invention;

[0023] Figure 4 It is of the present invention Figure 3 The enlarged schematic diagram of part A in it;

[0024] Figure 5 It is a schematic diagram of the structure of the variable cleaning mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the position structure of the first connecting rod, the second connecting rod and the variable connecting rod of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the first connecting rod of the present invention;

[0027] Figure 8 It is of the present invention Figure 7 The enlarged schematic diagram of part B in it;

[0028] Figure 9 It is of the present invention Figure 7 The enlarged schematic diagram of part C in it.

[0029] Reference Numerals:

[0030] 1. Auxiliary cleaning mechanism; 11. Support plate; 12. Driving motor; 13. Eccentric disk; 14. Connecting rod; 15. Connecting pipe; 16. Water outlet pipe; 17. Matching plate; 18. Lifting platform; 2. Variable cleaning mechanism; 21. Cleaning brush; 22. Transmission belt; 23. Contact sensor; 24. Top connecting rod; 25. Variable connecting rod; 26. First connecting rod; 261. Guide groove; 27. Connecting frame; 28. Second connecting rod; 29. Electric control telescopic rod; 210. Rotating sleeve; 211. Torsion spring top block; 212. Retractable side wall scraper; 213. Telescopic guide rod; 214. Deformable expansion sleeve; 3. Transmission mechanism; 31. Transmission gear column; 32. Bevel gear; 33. Matching bevel gear; 4. Auxiliary jitter mechanism; 41. Connecting block; 42. Return spring; 43. End collar; 44. Contact block; 45. Rotating block; 46. Matching contact block; 5. Cleaning box; 6. Conveyor belt. Detailed Embodiment

[0031] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention claimed, but merely represents the selected embodiments of the present invention.

[0033] All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] As shown in the following Figures 1 to 9 An automatic cleaning device for a bag filter is provided in an embodiment of the present invention, which includes a placement rack for fixing the position of the bag filter, a conveyor belt 6 for conveying the placement rack, and also includes an auxiliary cleaning mechanism 1 for pre-processing the bag filter, a variable cleaning mechanism 2 for improving the cleaning effect for different bag filters, a transmission mechanism 3 for controlling the variable cleaning mechanism 2 to work, and an auxiliary shaking mechanism 4 for improving the cleaning effect of the variable cleaning mechanism 2.

[0037] During operation, when the cleaning device cleans the bag filter, by setting the variable cleaning mechanism 2, it can be transformed into a state similar to the shape of the bag filter, so as to ensure contact with the inner wall of the bag filter. At the same time, through the auxiliary shaking mechanism 4, when the variable cleaning mechanism 2 is cleaning, the cleaning brush 21 on it presents two different movement trajectories, thereby improving the cleaning degree while ensuring the cleaning contact effect.

[0038] Specifically, the cleaning mechanism includes a cleaning box 5. An electrically controlled lifting platform 18 is arranged at the bottom inside the cleaning box 5. A support plate 11 is arranged on the top of the lifting platform 18. An eccentric disk 13 is arranged on the upper surface of the support plate 11. A plurality of transmission racks 19 are arranged beside the eccentric disk 13 and a connecting block 41 slidably connected to the plurality of transmission racks 19. The connecting block 41 and the eccentric disk 13 are connected by a connecting rod 14. The eccentric disk 13 is driven by a driving motor 12 arranged below it. A matching plate 17 is arranged above the support plate 11. A water spraying pipe is arranged above the matching plate 17. The water spraying pipe is connected to a water pump through a communicating pipe 15, and the water pump is located inside the cleaning box 5.

[0039] Specifically, the variable cleaning mechanism 2 includes a variable connecting rod 25, a transmission belt 22 and a side cleaning assembly. First connecting rods 26 and second connecting rods 28 are respectively arranged on both sides of the variable connecting rod 25. A rotating sleeve 210 is arranged at the end of the variable connecting rod 25. An electric control telescopic rod 29 is arranged below the rotating sleeve 210. The electric control telescopic rod 29 is located above the matching plate 17. The first connecting rod 26, the second connecting rod 28 and the variable connecting rod 25 are connected by a connecting frame 27, and the connecting frame 27 is slidably connected to the first connecting rod 26 and the second connecting rod 28. A top connecting rod 24 is arranged above the variable connecting rod 25. The position of the top connecting rod 24 and the rotating sleeve 210 is limited by a telescopic guide rod 213. One section of the transmission belt 22 is made of an elastic and stretchable material. The transmission belt 22 sequentially passes through the top connecting rod 24, the first connecting rod 26, the variable connecting rod 25 and the second connecting rod 28 to form a circulating conveyor. A plurality of cleaning brushes 21 are arranged on the surface of the transmission belt 22. A torsion spring top block 211 is arranged on the side surface of the transmission belt 22.

[0040] Specifically, the first connecting rod 26 and the second connecting rod 28 are at the same height, and the variable connecting rod 25 is higher than the first connecting rod 26. The first connecting rod 26, the second connecting rod 28 and the variable connecting rod 25 are distributed in a triangle.

[0041] During operation, since the bag filter often has a shape that is smaller at the top and larger at the bottom, and during use, since the first connecting rod 26, the second connecting rod 28 and the variable connecting rod 25 are distributed in a triangle, at this time, by adjusting the height of the variable connecting rod 25, the effect of adjusting the distance between the first connecting rod 26 and the second connecting rod 28 can be achieved (since the length of the connecting frame 27 arranged in the middle will not change, when the variable connecting rod 25 descends, at this time, the first connecting rod 26 and the second connecting rod 28 will be pushed outwards by the connecting frame 27, so as to achieve the effect of adjusting the bottom size. And the top is connected together, so the degree of size change is smaller.

[0042] Specifically, the side cleaning assembly includes a retractable side wall scraper 212. The retractable side wall scraper 212 is limited by a deformable expansion sleeve between it and the telescopic guide rod 213. During use, the problem of side wall cleaning also needs to be considered. For this reason, the retractable side wall scraper 212 can follow the transmission belt 22 to move up and down along the telescopic guide rod 213. However, since the diameters of the upper and lower sections of the telescopic guide rod 213 are different, a deformable expansion sleeve 214 is arranged in the retractable side wall scraper 212, so that it can always be in frictional contact with the telescopic guide rod 213, so as to achieve the limiting effect on the retractable side wall scraper 212.

[0043] Specifically, the first connecting rod 26, the second connecting rod 28, and the top connecting rod 24 are distributed in a triangular shape.

[0044] Specifically, the transmission mechanism 3 includes a transmission gear column 31, which is divided into a transmission gear and a rotating column. The transmission gear is meshed and connected with the transmission rack 19. A ratchet connection is provided between the transmission gear and the rotating column. A bevel gear 32 is provided at the end of the rotating column, and a mating bevel gear 33 is provided beside the bevel gear 32. The mating bevel gear 33 is arranged on the first connecting rod 26.

[0045] Specifically, the auxiliary jitter mechanism 4 includes a connecting block 41, which is arranged on one side of the mating bevel gear 33, and the connecting block 41 and the mating bevel gear 33 are connected by a return spring 42. A guiding groove 261 for laterally limiting the movement of the mating bevel gear 33 is formed on the first connecting rod 26. A rotating rod is arranged inside the first connecting rod 26 and the second connecting rod 28, and the rotating rod is slidably connected between the first connecting rod and the second connecting rod 28. A rotating block 45 is provided at the end of the rotating rod. The rotating block 45 is slidably connected to the support plate 11 through a connecting rod. A mating abutting block 46 is arranged inside the rotating block 45. End sleeves 43 are provided at the ends of the first connecting rod 26 and the second connecting rod 28. A plurality of abutting blocks 44 for cooperating with the mating abutting block 46 are distributed on one side of the end sleeve 43. A contact sensor 23 is arranged on the rotating block 45. A return spring block 47 for resetting is arranged at the other ends of the first connecting rod 26 and the second connecting rod 28.

[0046] Working principle: During use, multiple bag filters to be cleaned are placed on the placement rack, and then the conveyor belt 6 is started to move the placement rack above the cleaning box 5. At this time, the lifting rack is started to move the conveyor belt 22 into the bag filter, so that the conveyor belt 22 wrapped around the top connecting rod 24 contacts the inner top of the bag filter. Then the electric control telescopic rod 29 is started to contract. During the contraction of the electric control telescopic rod 29, since its top is connected to the rotating sleeve 210, and the rotating sleeve 210 is connected to the variable connecting rod 25, the contraction of the electric telescopic rod will drive the variable connecting rod 25 to descend. The variable connecting rod 25 is respectively connected to the first connecting rod 26 and the second connecting rod 28 through the connecting frame 27, and the length of the connecting frame 27 does not change. Therefore, when the variable connecting rod 25 descends and drives the connecting frame 27 to move synchronously, at this time, it will push the first connecting rod 26 and the second connecting rod 28 to move outwards. After the first connecting rod 26 and the second connecting rod 28 move outwards (when the positions of the first connecting rod 26 and the second connecting rod 27 change, since one section of the conveyor belt 22 is made of a highly elastic stretchable material, the tension can be ensured), at this time, it will drive the rotating block 45 connected thereto and the connecting rod connected to the rotating block 45 to move synchronously. At this time, after the electric control telescopic rod 29 moves, the synchronous displacement rod that works synchronously with the electric control telescopic rod 29 pushes the transmission rack 19 to move, so that the transmission rack 19 can be used to mesh with the transmission gear column 31. When the contact sensor 23 provided on the end collar 43 touches, it means that the inner wall of the bag filter is contacted at this time, thus completing the adaptive adjustment;

[0047] Then, start the drive motor 12 and the water pump. The water pump transports water through the connecting pipe 15 into the outlet pipe 16, and the water sprayed from the outlet pipe 16 cleans the bag filter. The drive motor 12 rotates to drive the eccentric disk 13 to rotate. The movement of the eccentric disk 13 finally drives the transmission rack 19 to reciprocate through the connecting rod 14. Since the transmission rack 19 meshes with the transmission gear column 31, it will deflect synchronously and reciprocally. However, due to the ratchet connection between the transmission gear and the rotating column, the rotating column rotates in one direction. Its rotation drives the conical gear 32 at the top to drive the mating conical gear 33 to rotate. The rotation of the mating conical gear 33 drives the first connecting rod 26 to rotate. The rotation of the first connecting rod 26 drives the external transmission belt 22 to move. The movement of the transmission belt 22 drives the cleaning brush 21 arranged thereon to move, so as to achieve the process of cleaning the inside of the bag filter. When the cleaning brush 21 moves to the bottom, it will contact the support plate 11, thereby scraping the cleaning brush 21 to remove the impurities attached thereto. When the transmission belt 22 moves, the torsion spring top block 211 arranged thereon pushes the retractable side wall scraper 212 to move, so as to clean the side wall machine. When the retractable side wall scraper 212 retracts to the limit, it means that the retractable side wall scraper 212 moves to the top of the bag filter. At this time, the retractable side wall scraper 212 cannot move anymore, which is greater than the torsion spring force in the torsion spring top block 211, and the torsion spring top block 211 deflects to ensure the normal movement of the transmission belt 22. When it moves to the other side, at this time, the torsion spring top block 211 will push the retractable side wall scraper 212 to move downward, so as to achieve effective scraping of the side wall;

[0048] At the same time, when the first connecting rod 26 rotates, it will drive the contact block 44 thereon to rotate. When the contact block 44 contacts the mating contact block 46, the first connecting rod 26 will longitudinally slide along the rotating rod, thereby driving the cleaning brush 21 to change its position and improving the cleaning effect.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic cleaning device for a bag filter, comprising a placement rack for fixing the position of the bag filter, and a conveyor belt (6) for conveying the placement rack to a certain position, characterized in that; It also includes an auxiliary cleaning mechanism (1) for performing pre-processing on the bag filter, a variable cleaning mechanism (2) for improving the cleaning effect for different bag filters, a transmission mechanism (3) for controlling the operation of the variable cleaning mechanism (2), and an auxiliary shaking mechanism (4) for improving the cleaning effect of the variable cleaning mechanism (2).

2. The automatic cleaning device for bag filters according to claim 1, characterized in that; The cleaning mechanism comprises a cleaning box (5), wherein an electrically controlled lifting platform (18) is arranged at the bottom of the cleaning box (5), a support plate (11) is arranged at the top of the lifting platform (18), an eccentric disk (13) is arranged on the upper surface of the support plate (11), a plurality of transmission racks (19) and a connecting block (41) slidably connected to the plurality of transmission racks (19) are arranged beside the eccentric disk (13), a synchronous displacement rod for controlling the movement of the connecting block (41) and the transmission rack (19) is arranged between the connecting block (41) and the transmission rack (19), the connecting block (41) and the eccentric disk (13) are connected by a connecting rod (14), the eccentric disk (13) is driven by a driving motor (12) arranged below, a matching plate (17) is arranged above the support plate (11), a water spray pipe is arranged above the matching plate (17), the water spray pipe is connected to a water pump through a connecting pipe (15), and the water pump is located in the cleaning box (5).

3. The automatic cleaning device for bag filters according to claim 1, characterized in that: The variable cleaning mechanism (2) comprises a variable connecting rod (25), a transmission belt (22) and a side cleaning assembly. A first connecting rod (26) and a second connecting rod (28) are respectively provided on both sides of the variable connecting rod (25). A rotating sleeve (210) is provided at the end of the variable connecting rod (25). An electrically controlled telescopic rod (29) is provided below the rotating sleeve (210). The electrically controlled telescopic rod (29) is located above the matching plate (17). The first connecting rod (26), the second connecting rod (28) and the variable connecting rod (25) are connected via a connecting frame (27). The connecting frame (27) is connected to the first connecting rod (26) and the second connecting rod (28). The connecting rod (28) is slidably connected, a top connecting rod (24) is arranged above the variable connecting rod (25), a telescopic guide rod (213) is arranged between the top connecting rod (24) and the rotating sleeve (210) for position limiting, one section of the transmission belt (22) is made of elastic and stretchable material, the transmission belt (22) passes through the top connecting rod (24), the first connecting rod (26), the variable connecting rod (25) and the second connecting rod (28) in sequence to form a circular conveying, a plurality of cleaning brushes (21) are arranged on the surface of the transmission belt (22), and a torsion spring top block (211) is arranged on the side surface of the transmission belt (22).

4. The automatic cleaning device for bag filters according to claim 3, characterized in that: The first connecting rod (26) and the second connecting rod (28) are at the same height, and the variable connecting rod (25) is higher than the first connecting rod (26); the first connecting rod (26), the second connecting rod (28) and the variable connecting rod (25) are distributed in a triangular shape.

5. The automatic cleaning device for bag filters according to claim 3, characterized in that: The side cleaning assembly comprises a retractable side wall scraper (212), and sliding restriction is performed between the retractable side wall scraper (212) and the telescopic guide rod (213) via a deformable expansion sleeve (214).

6. The automatic cleaning device for bag filters according to claim 3, characterized in that: The first connecting rod (26), the second connecting rod (28) and the top connecting rod (24) are distributed in a triangular shape.

7. The automatic cleaning device for bag filters according to claim 1, characterized in that: The transmission mechanism (3) comprises a transmission gear column (31), the transmission gear column (31) being divided into transmission teeth and a rotating column, the transmission teeth being meshedly connected with the transmission rack (19), the transmission teeth and the rotating column being connected via a ratchet, a bevel gear (32) being arranged at the end of the rotating column, a matching bevel gear (33) being arranged beside the bevel gear (32), and the matching bevel gear (33) being arranged on the first connecting rod (26).

8. The automatic cleaning device for bag filters according to claim 3, characterized in that: The auxiliary shaking mechanism (4) comprises a connecting block (41), the connecting block (41) is arranged on one side of the matching bevel tooth (33), and the connecting block (41) and the matching bevel tooth (33) are connected via a return spring (42); the first connecting rod (26) is provided with a guide groove (261) for limiting the lateral movement of the matching bevel tooth (33); a rotating rod is arranged inside the first connecting rod (26) and the second connecting rod (28), and the rotating rod is slidably connected to the first connecting rod and the second connecting rod (28); and a rotating block (45) is arranged at the end of the rotating rod. The rotating block (45) is slidably connected to the support plate (11) via a connecting rod, a matching stop block (46) is arranged on the inner side of the rotating block (45), end rings (43) are arranged at the ends of the first connecting rod (26) and the second connecting rod (28), a plurality of contact blocks (44) for use with the matching stop block (46) are distributed on one side of the end rings (43), a contact sensor (23) is arranged on the rotating block (45), and a reset spring block (47) for resetting the first connecting rod (26) and the second connecting rod (28) is arranged at the other end thereof.

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