Self-inspection type filter element structure for filtering equipment and use method of self-inspection type filter element structure

Abstract

The invention discloses a self-inspection type filter element structure for filtering equipment and a using method thereof.The self-inspection type filter element structure comprises a filter body and a filter element body, a supporting plate is fixedly connected to the interior of the filter body, and the upper end face of the supporting plate is rotationally sleeved with the filter element body. When the pressure of gas exhausted by the gas outlet pipe is low, the flow sensor senses the pressure, and when the gas pressure is low, it means that the filter element body is blocked, at the moment, the opening and closing mechanism can be controlled to be opened through the driving mechanism and the clutch mechanism, and then under the help of the clutch mechanism, the filter element body can be opened. The knocking frame knocks the filter element main body to generate vibration at the moment, the filter element main body rotates under the help of the driving mechanism, and the cleaning flexible plate fixed on the extension plate can clean the outer wall of the filter element main body at the moment, so that the air inlet rate of the filter element main body is increased.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, and in particular to a self-checking filter element structure for filtering equipment and a use method thereof. Background Art

[0002] In the field of filtration equipment, filter elements, as their core components, play a vital role. The main function of filter elements is to effectively remove impurities such as suspended matter, particulate matter, colloids, microorganisms, chemicals, etc. in the fluid through physical barriers, adsorption or chemical reactions, thereby improving the purity and quality of the fluid. With the continuous advancement of industrial technology and increasingly stringent environmental protection requirements, the performance requirements for filter elements are also increasing. Traditional filter elements are mostly made of fiber materials, activated carbon, ceramics, metal mesh and other materials. Each material has its unique filtering characteristics and application scenarios.

[0003] In current filtration technology, the cleaning and maintenance of the filter element body is crucial to the performance and efficiency of the equipment. Usually, the cleaning of the filter element relies on manual periodic replacement or cleaning, which is time-consuming and labor-intensive, and it is difficult to ensure that the filter element is always kept in the optimal state. Some filtration systems only clean according to a fixed schedule and fail to take into account the dynamic changes in the degree of filter element blockage, which may result in unnecessary cleaning operations before the filter element is seriously blocked, or cleaning is performed only after the filter element is seriously blocked, which has an adverse effect on the filtration performance. For this reason, we propose a self-checking filter element structure for filtration equipment and a method for using the same. Summary of the invention

[0004] The object of the present invention is to provide a self-checking filter element structure for a filtering device and a method of using the same, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a self-checking filter element structure for filtering equipment, comprising a filter body and a filter element body, a support plate is fixedly connected inside the filter body, the filter element body is rotatably sleeved on the upper end surface of the support plate, a knocking ring is fixedly connected to the outer wall of the filter element body, a filter cloth for gas filtering is arranged inside the filter element body, a transmission mechanism for driving the filter element body to rotate is arranged on the upper end surface of the support plate, a plurality of knocking mechanisms for knocking the filter element body to generate vibration are arranged on the inner side wall of the filter body, an upper sealing member is integrally connected to the upper end surface of the filter body, an opening and closing mechanism for preventing gas from passing through is arranged at the boundary between the filter body and the upper sealing member, a side frame is fixedly connected to the outer side wall of the filter body, a driving mechanism for driving the transmission mechanism and the opening and closing mechanism to work is arranged inside the side frame, a clutch mechanism for regulating the transmission mechanism and the opening and closing mechanism kinetic energy is arranged inside the side frame, and a negative pressure mechanism for extracting gas is symmetrically arranged on the inner top of the upper sealing member.

[0006] As a preferred embodiment of the above technical solution, the filter body includes an ash discharge pipe which is symmetrically fixedly connected to the upper end face of the upper seal, the internal sealing connection of the ash discharge pipe is provided with a removable sealing plug, the outer side wall of the filter body and the side frame form a symmetrical position with an air inlet pipe for delivering air into the filter body, the lower end face of the filter body is bolted to a lower seal cover, the lower end face of the lower seal cover is fixedly connected to an air outlet pipe, and the end of the air outlet pipe extends to the interior of the filter body, the extended end of the air outlet pipe is rotatably sleeved with the interior of the filter element body, the inner side wall of the air outlet pipe is provided with a flow sensor for detecting gas flow and pressure, and the outer side wall of the side frame is provided with a control panel for receiving electrical signals from the flow sensor.

[0007] As a preferred embodiment of the above technical solution, the transmission mechanism includes a fixed sleeve fixedly connected to the inside of the filter body, the fixed sleeve is symmetrically fixedly connected with an extension plate on one side close to the filter element body, and the two extension plates are fixedly connected with a cleaning flexible plate in contact with the outer wall of the filter element body on the side away from each other, and the fixed sleeve is rotatably connected with a gear ring inside, and the interior of the filter body is located above the filter element body and fixedly connected with a plurality of second fixed shafts, and the intersection points of the plurality of second fixed shafts are fixedly connected with a first bearing frame, the interior of the first bearing frame is fixedly connected with a first fixed shaft via a bearing, the end of the first fixed shaft is fixedly connected to the center of the upper end surface of the filter element body, and the outer wall of the first fixed shaft is fixedly sleeved with a first synchronous wheel.

[0008] As a preferred embodiment of the above technical scheme, the knocking mechanism includes a fixed plate fixedly connected to the inner wall of the filter body and a fixed bracket fixedly connected to one side of the fixed plate, the upper end surface of the fixed plate is fixedly connected to a gear box, the inner bottom end of the gear box is rotatably sleeved with a first bevel gear through a bearing, the inner side wall of the gear box is rotatably sleeved with a second bevel gear through a bearing, and the first bevel gear and the second bevel gear are meshed for transmission, the lower end surface of the first bevel gear is coaxially fixedly connected with a first gear meshed with a gear ring for transmission, the first gear is located below the gear box, the end of the second bevel gear away from the first bevel gear is fixedly connected to a first synchronous shaft, and the first synchronous shaft is rotatably sleeved with the gear box, the end of the first synchronous shaft is fixedly connected to an inclined plate, the bottom end of the inclined plate away from the gear box is fixedly connected to a stop shaft, the internal rotation of the fixed bracket is connected to a knocking frame, the knocking frame is symmetrically fixedly connected to an arc plate on the side close to the gear box, and the stop shaft is sleeved inside the arc plate.

[0009] As a preferred embodiment of the above technical solution, the opening and closing mechanism includes a limit frame fixedly connected to the junction of the filter body and the upper seal, the outer wall of the limit frame is rotatably sleeved with a ring, the outer wall of the ring is fixedly connected with an arc-shaped rack, the outer wall of the ring is fixedly connected with a plurality of connecting rods in a circular array, the upper end surface of the first bearing frame is coaxially fixedly connected with a concentric plate, the outer wall of the concentric plate is rotatably sleeved with a plurality of fan blades in a circular array, and a sealing strip is provided at the overlapping end of each of the fan blades, one end of the fan blade away from the concentric plate is fixedly connected with an auxiliary rod, and the auxiliary rod extends to the outer wall of the limit frame, one end of the auxiliary rod away from the fan blade is fixedly connected with a limit buckle, and the connecting rod is rotatably sleeved inside the limit buckle.

[0010] As a preferred embodiment of the above technical solution, the driving mechanism includes a driving motor fixedly connected to the bottom end of the side frame, the output end of the driving motor is fixedly connected to a driving shaft, a spline groove is opened on the outer wall of the driving shaft, and a second synchronous wheel is rotatably sleeved on the outer wall of the driving shaft, and a second bearing frame is symmetrically fixedly connected to the inner side wall of the filter body close to the side frame, and a limiting shaft is rotatably sleeved on the interior of the second bearing frame through a bearing, and one end of the limiting shaft close to the fixed sleeve is fixedly connected to a second gear meshing with a gear ring for transmission, and one end of the limiting shaft away from the second gear is fixedly connected to a third synchronous wheel, and the outer walls of the second synchronous wheel and the third synchronous wheel are sleeved with a second synchronous belt, and the outer walls of the first synchronous wheel and the third synchronous wheel are located below the second synchronous belt and are sleeved with the first synchronous belt.

[0011] As a preferred embodiment of the above technical solution, a sealing plate is symmetrically fixedly connected inside the side frame, a sealing bearing is fixedly connected inside the sealing plate, and the drive shaft is fixedly connected to the inside of the sealing bearing.

[0012] As a preferred embodiment of the above technical scheme, the clutch mechanism includes an electric push rod symmetrically fixedly connected to the upper end surface of the sealing plate close to the driving motor side, the telescopic end of the electric push rod is fixedly connected to a push plate, the inner side wall of the push plate is symmetrically fixedly connected to a clamping shaft, the outer wall of the driving shaft is located at the position of the spline groove and is slidably sleeved with a two-way gear disk, and the clamping shaft is rotatably sleeved on the outer wall of the two-way gear disk, the second synchronous wheel is fixedly connected to a first gear disk on the side close to the two-way gear disk, and the first gear disk is rotatably sleeved with the driving shaft, and the inner side wall of the other sealed bearing is fixedly connected to a second synchronous shaft, and the sealed bearing is fixedly connected to the longitudinal center of the second synchronous shaft, the two ends of the second synchronous shaft are respectively fixedly connected with a third gear and a second gear disk, the third gear is meshed with an arc rack for transmission, and the first gear disk and the second gear disk are both meshed with the two-way gear disk for transmission.

[0013] As a preferred embodiment of the above technical solution, the negative pressure mechanism includes an outer frame symmetrically fixedly connected to the top inner side of the upper seal, a negative pressure fan is arranged inside the outer frame, and a protective cover is fixedly connected to the inner side of the outer frame below the negative pressure fan.

[0014] A method for using a self-checking filter element structure for a filtering device, S1. When in use, first remove the sealing plug from the end of the ash discharge pipe, then use the clutch mechanism to transfer the kinetic energy of the driving mechanism to the opening and closing mechanism, so that the opening and closing mechanism can be opened. When the opening and closing mechanism is opened and the fan blades form a certain angle, the kinetic energy of the opening and closing mechanism can be disconnected. At this time, the filter body and the interior of the upper seal are connected. Then, after the external power source is connected to the negative pressure fan, the clutch mechanism can be used to transfer the kinetic energy again to the mechanism that needs to work next; S2. With the help of the clutch mechanism, the kinetic energy of the driving mechanism is transmitted to the transmission mechanism, so that the filter element body can rotate. A cleaning flexible plate is arranged inside the filter body. When the filter element body rotates, the attachments on its outer wall can be cleaned to avoid clogging of the holes. S3. With the help of the clutch mechanism, the second synchronous wheel and the second synchronous belt, the rotation of the limit shaft can be realized, and the limit shaft can drive the knocking mechanism to move through the second gear and the gear ring. When the knocking mechanism starts to work, the knocking frame can realize the knocking movement on the knocking ring, so that the filter element body vibrates when rotating, which is more convenient to clean the attachments. Since the negative pressure mechanism has been turned on, the inside of the filter body and the upper seal will rise rapidly under the influence of the negative pressure fan, and drive the dust to be discharged through the dust discharge pipe to avoid accumulation inside it; S4. After working for a period of time, the attachments on the filter element body will be effectively reduced. At this time, the kinetic energy of the transmission mechanism and the knocking mechanism is still disconnected through the clutch mechanism, and the kinetic energy is connected to the opening and closing mechanism to close the fan blades again to prevent a large amount of gas from entering the interior of the upper seal when the equipment is in use, resulting in contamination with a large amount of attachments.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention is provided with a driving mechanism as the main power source, and a clutch mechanism is used to adjust the operation of the knocking mechanism and the opening and closing mechanism, wherein when the exhaust gas pressure of the outlet pipe is low, it is sensed by the flow sensor. When the air pressure is low, it means that the filter element body is blocked. At this time, the opening and closing mechanism can be controlled to open by the driving mechanism and the clutch mechanism, and then the knocking mechanism is operated with the help of the clutch mechanism. At this time, the knocking frame knocks on the filter element body to make it vibrate, and with the help of the driving mechanism, the filter element body will rotate, and the cleaning flexible plate fixed on the extension plate will realize the cleaning of the outer wall of the filter element body to improve the air intake rate of the filter element body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall side structure of the present invention; Figure 3 It is a schematic diagram of the overall dissected structure of the present invention; Figure 4 This is a schematic diagram of the split structure of the filter body of the present invention; Figure 5 This is a schematic diagram of the specific structure of the filter body of the present invention; Figure 6 It is a schematic diagram of the filter element structure of the present invention; Figure 7 It is a schematic diagram of the side structure of the filter element mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the opening and closing mechanism of the present invention; Fig. 9 This is a schematic diagram of the split structure of the opening and closing mechanism of the present invention; Fig.10 It is a schematic diagram of the structure of the knocking mechanism of the present invention; Fig.11 It is a schematic diagram of the clutch mechanism and the driving mechanism structure of the present invention; Fig.12 It is a schematic diagram of the partial structure of the clutch mechanism of the present invention; Fig.13 It is a schematic diagram of the disassembled structure of the negative pressure mechanism of the present invention; Fig.14 It is a schematic diagram of the split structure of the filter element body of the present invention.

[0017] In the figure: 1. filter body; 11. upper sealing member; 12. ash discharge pipe; 13. sealing plug; 14. air inlet pipe; 15. lower sealing cover; 16. air outlet pipe; 17. side frame; 18. control panel; 19. flow sensor; 2. transmission mechanism; 21. filter element body; 211. knocking ring; 212. filter cloth; 22. support plate; 23. fixed sleeve; 231. extension plate; 232. cleaning flexible plate; 24. gear ring; 25. first fixed shaft; 26. first bearing frame; 27. second fixed shaft; 28. first synchronous wheel; 29. ​​first synchronous belt; 3. knocking mechanism; 31. fixed plate; 32. gear box; 321. first bevel gear; 322. second bevel gear; 33. first gear; 34. fixed bracket; 35. first synchronous shaft; 36. tilting plate; 37. stop shaft; 38. knocking frame ;381, arc plate;4, opening and closing mechanism;41, limit frame;42, collar;421, arc rack;43, connecting rod;44, concentric plate;45, fan blade;46, auxiliary rod;461, limit buckle;5, driving mechanism;51, driving motor;511, driving shaft;512, spline groove;52, sealing plate;521, sealing bearing;53, limit shaft;531, second bearing frame;532, second gear;533, third synchronous wheel;54, second synchronous wheel;541, second synchronous belt;6, clutch mechanism;61, electric push rod;611, push plate;612, clamping shaft;62, two-way gear disc;63, first gear disc;64, second gear disc;65, second synchronous shaft;66, third gear;7, negative pressure mechanism;71, outer frame;72, negative pressure fan;73, protective cover. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1 - Fig.14The present invention provides a technical solution: a self-checking filter element structure for a filtering device, comprising a filter body 1 and a filter element body 21, wherein a support plate 22 is fixedly connected inside the filter body 1, the filter element body 21 is rotatably sleeved on the upper end surface of the support plate 22, a knocking ring 211 is fixedly connected to the outer wall of the filter element body 21, a filter cloth 212 for filtering gas is arranged inside the filter element body 21, a transmission mechanism 2 for driving the filter element body 21 to rotate is arranged on the upper end surface of the support plate 22, and a plurality of filter elements 21 are arranged on the inner side wall of the filter body 1. A knocking mechanism 3 is provided for generating vibration by knocking, an upper end surface of the filter body 1 is integrally formed and connected with an upper seal 11, an opening and closing mechanism 4 for preventing gas from passing through is provided at the boundary between the filter body 1 and the upper seal 11, an outer side wall of the filter body 1 is fixedly connected with a side frame 17, a driving mechanism 5 for driving the transmission mechanism 2 and the opening and closing mechanism 4 is provided inside the side frame 17, a clutch mechanism 6 for regulating the opening and closing of the transmission mechanism 2 and the kinetic energy of the opening and closing mechanism 4 is provided inside the side frame 17, and a negative pressure mechanism 7 for extracting gas is symmetrically provided at the inner top end of the upper seal 11.

[0020] By adopting the above technical scheme, the knocking ring 211 on the filter element main body 21 cooperates with the knocking mechanism 3 on the inner wall of the filter main body 1. When the driving mechanism 5 is started, the filter element main body 21 can be knocked periodically to effectively shake off and remove impurities and particulate matter accumulated on the filter cloth 212, thereby avoiding the clogging problem of the filter element main body 21 caused by long-term use, thereby ensuring the continuous and efficient filtration efficiency. The setting of the clutch mechanism 6 allows the kinetic energy of the transmission mechanism 2 and the opening and closing mechanism 4 to be opened and closed as needed, thereby realizing intelligent control of the filtration process. The opening and closing mechanism 4 between the upper seal 11 and the filter main body 1 ensures the complete sealing of the gas during the filtration process, prevents the unfiltered gas from escaping directly through the gap, and further improves the filtration quality. The negative pressure mechanism 7 at the top of the upper seal 11 can effectively extract the gas remaining in the filter element and the filter by generating a negative pressure environment after the filtration is completed, thereby avoiding secondary pollution and ensuring the purity of the filtration result.

[0021] See also Figure 1 - Figure 4The filter body 1 includes an ash discharge pipe 12 which is symmetrically fixedly connected to the upper end surface of the upper sealing member 11, and the interior of the ash discharge pipe 12 is sealed and connected with a removable sealing plug 13. The outer wall of the filter body 1 and the side frame 17 form a symmetrical position with an air inlet pipe 14 for delivering air into the interior of the filter body 1. The lower end surface of the filter body 1 is bolted with a lower cover 15, and the lower end surface of the lower cover 15 is fixedly connected with an air outlet pipe 16, and the end of the air outlet pipe 16 extends to the interior of the filter body 1, and the extended end of the air outlet pipe 16 is rotatably sleeved with the interior of the filter element body 21. A flow sensor 19 for detecting gas flow and pressure is installed on the inner side wall of the air outlet pipe 16, and a control panel 18 for receiving electrical signals from the flow sensor 19 is installed on the outer side wall of the side frame 17.

[0022] By adopting the above technical solution, the dust discharge pipe 12 added to the filter body 1 and the sealing plug 13 inside thereof provide the user with a convenient and safe dust discharge channel. As the filtering process continues, the dust and impurities accumulated on the filter element body 21 can be cleaned by regularly opening the sealing plug 13, which effectively avoids the problem of reduced filtering efficiency and filter element clogging caused by dust accumulation. The ingenious layout of the air inlet pipe 14 and the air outlet pipe 16 ensures that the gas can smoothly enter the interior of the filter body 1 and be output from the air outlet pipe 16 after being efficiently filtered by the filter element body 21. The air outlet pipe 16 and the interior of the filter element body 21 are connected. The rotating sleeve design not only ensures the continuous flow of gas, but also avoids the gas leakage problem caused by the rotation of the filter element, further improving the filtration efficiency. The flow sensor 19 installed on the inner wall of the outlet pipe 16 can detect the gas flow and pressure in real time, providing users with accurate data support. The use of the flow sensor 19 and the control panel 18 realizes the intelligent monitoring of the filtration process. The user can intuitively view the changes in gas flow and pressure through the control panel 18 and take timely measures to ensure the stable operation of the filtration equipment. The flow sensor 19 can adopt the model AG2-25.

[0023] See also Figure 3 - Figure 6 The transmission mechanism 2 includes a fixed sleeve 23 fixedly connected to the inside of the filter body 1, and an extension plate 231 is symmetrically fixedly connected to the side of the fixed sleeve 23 close to the filter element body 21, and a clean flexible plate 232 in contact with the outer wall of the filter element body 21 is fixedly connected to the side of the two extension plates 231 away from each other, and a gear ring 24 is rotatably connected inside the fixed sleeve 23. A plurality of second fixed shafts 27 are fixedly connected to the inside of the filter body 1 above the filter element body 21, and a first bearing frame 26 is fixedly connected to the intersection of the plurality of second fixed shafts 27. A first fixed shaft 25 is fixedly connected to the inside of the first bearing frame 26 through a bearing, and an end of the first fixed shaft 25 is fixedly connected to the center of the upper end surface of the filter element body 21, and a first synchronous wheel 28 is fixedly sleeved on the outer wall of the first fixed shaft 25.

[0024] By adopting the above technical solution, the transmission mechanism 2 realizes continuous and gentle cleaning of the outer wall of the filter element main body 21 through the cleaning flexible plate 232 fixed on the fixed sleeve 23 and its extension plate 231. As the gear ring 24 rotates, the fixed sleeve 23 and its auxiliary structures move accordingly, and the cleaning flexible plate 232 contacts the outer wall of the filter element main body 21 and generates a slight friction force, which effectively removes dust and impurities attached to the surface of the filter element main body 21, which not only improves the cleaning efficiency of the filter element main body 21, but also avoids the problem of damage to the filter element main body 21 caused by excessive cleaning force.

[0025] See also Figure 6 , Figure 7 and Fig.10 The knocking mechanism 3 includes a fixing plate 31 fixedly connected to the inner wall of the filter body 1 and a fixing bracket 34 fixedly connected to one side of the fixing plate 31. The upper end surface of the fixing plate 31 is fixedly connected to a gear box 32. The inner bottom end of the gear box 32 is rotatably sleeved with a first bevel gear 321 through a bearing. The inner side wall of the gear box 32 is rotatably sleeved with a second bevel gear 322 through a bearing, and the first bevel gear 321 is meshed with the second bevel gear 322 for transmission. The lower end surface of the first bevel gear 321 is coaxially fixedly connected with a first gear 33 meshed with the gear ring 24 for transmission. The first gear 33 is located below the gear box 32, and the end of the second bevel gear 322 away from the first bevel gear 321 is fixedly connected to the first synchronization shaft 35, and the first synchronization shaft 35 is rotatably sleeved with the gear box 32, and the end of the first synchronization shaft 35 is fixedly connected to an inclined plate 36, and the bottom end of the inclined plate 36 away from the gear box 32 is fixedly connected to a stop shaft 37, and the inside of the fixed bracket 34 is rotatably connected to a knocking frame 38, and the knocking frame 38 is symmetrically fixedly connected to a side of the gear box 32 with an arc plate 381, and the stop shaft 37 is sleeved inside the arc plate 381.

[0026] By adopting the above technical solution, as the gear ring 24 rotates, the first gear 33 rotates accordingly, and through the meshing transmission with the first bevel gear 321, drives the second bevel gear 322 and the first synchronization shaft 35 to rotate. Finally, the rotation of the inclined plate 36 causes the blocking shaft 37 to move inside the arc plate 381, thereby driving the knocking frame 38 to produce a knocking action, thereby achieving precise control of the knocking force and frequency, effectively removing stubborn stains on the filter element body 21, and improving the cleaning efficiency. The gear transmission system in the knocking mechanism 3 (including the first bevel gear 321, the second bevel gear 322 and the first gear 33) adopts a precise meshing design to ensure stability and synchronization during the transmission process, avoid inconsistent or failure problems of knocking actions due to transmission errors, and improve the reliability and durability of the equipment.

[0027] See also Figure 6 - Fig. 9The opening and closing mechanism 4 includes a limit frame 41 fixedly connected to the junction of the filter body 1 and the upper sealing member 11, the outer wall of the limit frame 41 is rotatably sleeved with a ring 42, the outer wall of the ring 42 is fixedly connected with an arc-shaped rack 421, and the outer wall of the ring 42 is fixedly connected with a plurality of connecting rods 43 in a circular array. The upper end surface of the first bearing frame 26 is coaxially fixedly connected with a concentric plate 44, and the outer wall of the concentric plate 44 is rotatably sleeved with a plurality of fan blades 45 in a circular array, and each of the overlapping ends of the fan blade 45 is provided with a sealing strip, and one end of the fan blade 45 away from the concentric plate 44 is fixedly connected with an auxiliary rod 46, and the auxiliary rod 46 extends to the outer wall of the limit frame 41, and one end of the auxiliary rod 46 away from the fan blade 45 is fixedly connected with a limit buckle 461, and the connecting rod 43 is rotatably sleeved inside the limit buckle 461.

[0028] By adopting the above technical solution, when the ring 42 rotates under the action of external force, the arc-shaped rack 421 on its outer wall will interact with the third gear 66, thereby driving the ring 42 and its auxiliary structures (including the connecting rod 43, the auxiliary rod 46, etc.) to rotate. In this process, the fan blade 45 will expand or close with the center of the circle as the center under the guidance of the concentric plate 44, forming a unique opening and closing effect, which not only simplifies the opening and closing operation, but also improves the automation level of the equipment. The overlapping ends of the fan blade 45 are provided with sealing strips. When the fan blade 45 is fully closed, these sealing strips will fit tightly together to form an effective sealing barrier, which effectively prevents gas leakage problems that may occur during the filtration process and ensures the stability and reliability of the filtration efficiency. At the same time, the use of the sealing strip also extends the service life of the opening and closing mechanism 4 and reduces the maintenance cost caused by gas leakage. By adjusting the rotation angle of the ring 42, the user can easily control the opening and closing degree of the fan blade 45, so that the opening and closing mechanism 4 can be flexibly adjusted according to different filtration requirements and working conditions.

[0029] See also Figure 5 - Fig.11 The driving mechanism 5 includes a driving motor 51 fixedly connected to the inner bottom end of the side frame 17, the output end of the driving motor 51 is fixedly connected to a driving shaft 511, the outer wall of the driving shaft 511 is provided with a spline groove 512, the outer wall of the driving shaft 511 is rotatably sleeved with a second synchronous wheel 54, the inner side wall of the filter body 1 is symmetrically fixedly connected to a second bearing frame 531 on one side close to the side frame 17, the interior of the second bearing frame 531 is rotatably sleeved with a limiting shaft 53 through a bearing, one end of the limiting shaft 53 close to the fixed sleeve 23 is fixedly connected to a second gear 532 meshing with the gear ring 24 for transmission, and one end of the limiting shaft 53 away from the second gear 532 is fixedly connected to a third synchronous wheel 533, the outer walls of the second synchronous wheel 54 and the third synchronous wheel 533 are sleeved with a second synchronous belt 541, and the outer walls of the first synchronous wheel 28 and the third synchronous wheel 533 are located below the second synchronous belt 541 and are sleeved with a first synchronous belt 29.

[0030] By adopting the above technical solution, the driving mechanism 5 provides a stable power output through the driving motor 51. Through the coordinated use of the second synchronous wheel 54, the third synchronous wheel 533 and the second synchronous belt 541, the driving mechanism 5 can effectively distribute the power to the various transmission components in the filter body 1, such as the gear ring 24 and the first synchronous wheel 28, etc., thereby realizing the coordinated and efficient operation of the entire filtering equipment. In the driving mechanism 5, the introduction of the first synchronous belt 29 and the second synchronous belt 541 provides a reliable guarantee for the synchronous transmission of the equipment. These two synchronous belts respectively connect the first synchronous wheel 28 and the third synchronous wheel 533, and the second synchronous wheel 54 and the third synchronous wheel 533, ensuring the precise synchronization between them, which not only avoids the equipment failure or performance degradation caused by transmission error, but also improves the stability and reliability of the equipment.

[0031] See also Figure 5 and Fig.11 A sealing plate 52 is symmetrically fixedly connected inside the side frame 17 , a sealing bearing 521 is fixedly connected inside the sealing plate 52 , and the driving shaft 511 is fixedly connected to the inside of the sealing bearing 521 .

[0032] By adopting the above technical solution, the sealing plate 52 and the sealing bearing 521 inside it provide a tight and reliable sealing environment for the driving shaft 511, effectively preventing liquid or gas leakage problems that may occur during the filtration process, and ensuring the filtration efficiency and performance stability of the equipment. The symmetrical fixed connection of the sealing plate 52 not only enhances the structural strength of the side frame 17, but also provides a stable support point for the driving shaft 511. At the same time, the introduction of the sealing plate 52 and the sealing bearing 521 also simplifies the installation and disassembly process of the equipment, and improves the convenience and efficiency of maintenance.

[0033] See also Figure 5 , Fig.11 and Fig.12 The clutch mechanism 6 includes an electric push rod 61 symmetrically fixedly connected to the upper end surface of the sealing plate 52 near one side of the driving motor 51, the telescopic end of the electric push rod 61 is fixedly connected to a push plate 611, and the inner side wall of the push plate 611 is symmetrically fixedly connected to a clamping shaft 612, the outer wall of the driving shaft 511 is located at the position of the spline groove 512 and is slidably sleeved with a two-way gear disk 62, and the clamping shaft 612 is rotatably sleeved on the outer wall of the two-way gear disk 62, the second synchronous wheel 54 is fixedly connected to a first gear disk 63 on one side close to the two-way gear disk 62, and the first gear disk 63 is rotatably sleeved with the driving shaft 511, and the inner side wall of another sealed bearing 521 is fixedly connected to a second synchronous shaft 65, and the sealed bearing 521 is fixedly connected at the longitudinal center of the second synchronous shaft 65, and the two ends of the second synchronous shaft 65 are respectively fixedly connected to a third gear 66 and a second gear disk 64, the third gear 66 is meshed with the arc rack 421 for transmission, and the first gear disk 63 and the second gear disk 64 are both meshed with the two-way gear disk 62 for transmission.

[0034] By adopting the above technical solution, the clutch mechanism 6 realizes precise control of the push plate 611 and the clamping shaft 612 through the telescopic movement of the electric push rod 61. When the electric push rod 61 is extended, the push plate 611 drives the clamping shaft 612 to clamp into the outer wall of the two-way gear plate 62, and can simultaneously realize meshing transmission with the first gear plate 63 or the second gear plate 64. It can drive the first gear plate 63 and the second gear plate 64 to rotate synchronously, and then transmit power to other parts of the equipment through transmission elements such as the second synchronous wheel 54 and the third gear 66, thereby ensuring the synchronous movement between the various components of the equipment and avoiding performance degradation or failure problems caused by transmission errors.

[0035] See also Figure 5 and Fig.13 The negative pressure mechanism 7 includes an outer frame 71 symmetrically fixedly connected to the top of the upper sealing member 11, a negative pressure fan 72 is arranged inside the outer frame 71, and a protective cover 73 is fixedly connected to the inside of the outer frame 71 below the negative pressure fan 72.

[0036] By adopting the above technical solution, the negative pressure mechanism 7 generates a strong suction force through the high-speed rotation of the negative pressure fan 72, thereby discharging the air inside the filter body 1 and the upper seal 11, and impurities, dust and other particulate matter in the discharged air are effectively taken out. The high efficiency performance of the negative pressure fan 72 ensures that the equipment can handle a large amount of air or gas in a short time, thereby improving the discharge efficiency. The protective cover 73 is located below the negative pressure fan 72, which can effectively prevent objects or particulate matter inside the filter body 1 and the upper seal 11 from entering the fan, thereby avoiding equipment failure caused by fan blockage or damage.

[0037] A method for using a self-checking filter element structure for a filtering device, please refer to Figure 1 - Fig.14 , S1. When in use, first remove the sealing plug 13 from the end of the ash discharge pipe 12, then use the clutch mechanism 6 to transfer the kinetic energy of the driving mechanism 5 to the opening and closing mechanism 4, so that the opening and closing mechanism 4 can be opened. When the opening and closing mechanism 4 is opened and the fan blades 45 form a certain angle, the kinetic energy of the opening and closing mechanism 4 can be disconnected. At this time, the filter body 1 and the interior of the upper sealing member 11 are connected. Then, after the external power source is connected to the negative pressure fan 72, the clutch mechanism 6 can be used to transfer the kinetic energy again to the mechanism that needs to work next; S2. With the help of the clutch mechanism 6, the kinetic energy of the driving mechanism 5 is transmitted to the transmission mechanism 2, so that the filter element body 21 can be rotated. A cleaning flexible plate 232 is provided inside the filter body 1. When the filter element body 21 rotates, the attachments on its outer wall can be cleaned to avoid clogging of the holes. S3. With the help of the clutch mechanism 6, the second synchronous wheel 54 and the second synchronous belt 541, the rotation of the limit shaft 53 can be realized, and the limit shaft 53 can drive the knocking mechanism 3 to move through the second gear 532 and the gear ring 24. When the knocking mechanism 3 starts to work, the knocking frame 38 can realize the knocking movement of the knocking ring 211, so that the filter element body 21 vibrates when rotating, which is more convenient to clean the attachments. Since the negative pressure mechanism 7 has been turned on, the airflow inside the filter body 1 and the upper sealing member 11 will rise rapidly under the influence of the negative pressure fan 72, and drive the dust to be discharged through the dust discharge pipe 12 to avoid accumulation inside. S4. After working for a period of time, the attachments on the filter element main body 21 will be effectively reduced. At this time, the kinetic energy of the transmission mechanism 2 and the knocking mechanism 3 is still disconnected through the clutch mechanism 6, and the kinetic energy is connected to the opening and closing mechanism 4, and the fan blades 45 are closed again to prevent a large amount of gas from entering the interior of the upper seal 11 when the equipment is in use, resulting in contamination with a large amount of attachments.

[0038] Self-checking instructions for the filter element main body 21: input gas into the filter main body 1 through the air inlet pipe 14, and then connect the suction device to the end of the air outlet pipe 16. After the gas inside the filter main body 1 is sucked, it will pass through the filter element main body 21 and enter the inside of the air outlet pipe 16. A filter cloth 212 is arranged inside the filter element main body 21 to filter the gas, and a flow sensor 19 is arranged inside the air outlet pipe 16 to detect the pressure of the gas. The pressure and flow when the equipment is working at full capacity are different from those when the filter element main body 21 is in a blocked state. Therefore, when the flow sensor 19 detects When it is detected that the equipment is working at full capacity but the flow rate is low, the data will be transmitted to the control panel 18 through an electrical signal, and then the control panel 18 controls the drive motor 51 to work through the wire, and the output end of the drive motor 51 drives the drive shaft 511 to rotate, and the opening and closing work of the opening and closing mechanism 4 needs to be controlled by the clutch mechanism 6. At this time, with the help of the clutch mechanism 6, the rotation of the second synchronization shaft 65 and the third gear 66 can be realized, and the third gear 66 is meshed with the arc-shaped rack 421 for transmission, so the collar 42 drives a plurality of connecting rods 43 to rotate. Due to the limit between the connecting rod 43 and the outer wall of the fan blade 45, the connecting rod 43 and the outer wall of the fan blade 45 are locked. The locking clasp 461 is connected with the locking clasp 461, so under the rotation of the collar 42, the fan blade 45 will gradually open, and the interior of the filter body 1 is connected with the interior of the upper sealing member 11. Similarly, with the help of the clutch mechanism 6, the kinetic energy of the opening and closing mechanism 4 is disconnected, and then the second synchronous wheel 54 is driven by the driving shaft 511 to rotate, and the second synchronous belt 541 and the third synchronous wheel 533 are driven to rotate synchronously. Since the second gear 532 fixedly connected to the other end of the third synchronous wheel 533 is meshed with the fixed sleeve 23 for transmission, and the first gear 33 is meshed with the fixed sleeve 23 for transmission, after the fixed sleeve 23 rotates, the first gear 3 3 can drive the first bevel gear 321 and the second bevel gear 322 to rotate, and synchronously drive the first synchronization shaft 35 and the inclined plate 36 to perform arc motion. One end of the blocking shaft 37 is connected to the inclined plate 36, and the other end is rotatably engaged in the interior of the arc plate 381. Therefore, when the blocking shaft 37 performs arc motion, the arc plate 381 and the knocking frame 38 will be driven to perform arc motion. The end of the knocking frame 38 will knock the knocking ring 211 with the help of the arc motion. The knocking motion of the knocking frame 38 on the knocking ring 211 can make the filter element body 21 vibrate, so that the dust attached to the outer wall and the interior thereof will fall off. After the limit shaft 53 rotates, since the third synchronous wheel 533 is bidirectional, it can drive the first synchronous wheel 28 to rotate through the first synchronous belt 29, and the first synchronous wheel 28 can drive the first fixed shaft 25 and the filter element body 21 below to move. Under the continuous rotation of the first synchronous wheel 28, the cleaning flexible plate 232 contacts the outer wall of the first synchronous wheel 28, and the dust on the outer wall of the first synchronous wheel 28 can be swept off by the cleaning flexible plate 232. At this time, the negative pressure mechanism 7 is turned on. When the external power mechanism is connected to the negative pressure fan 72, the negative pressure fan 72 will rotate rapidly and drive the air inside the filter body 1 and the upper seal 11 to flow rapidly. , and then the gas inside is discharged through the dust discharge pipe 12. Since there is dust inside the filter body 1 and the upper seal 11 that is shaken off by the first synchronous wheel 28, the dust can be taken out synchronously after the negative pressure fan 72 rotates to avoid accumulation inside the filter body 1 and the upper seal 11. After cleaning for a period of time, the dust adhering to the first synchronous wheel 28 will be significantly reduced. At this time, the opening and closing mechanism 4 can be closed with the help of the clutch mechanism 6, and the interior of the filter body 1 and the upper seal 11 will no longer be connected, so as to avoid entering the interior of the upper seal 11 when the air intake pipe 14 is intake, resulting in a large amount of dust or attachments inside the upper seal 11; Supplement to the clutch mechanism 6: the second toothed disc 64 is fixedly connected to the end of the second synchronous shaft 65, and the first toothed disc 63 is fixedly connected to the side opposite to the second synchronous wheel 54, and the first toothed disc 63 and the second synchronous wheel 54 are both rotatably connected to the drive shaft 511. Therefore, when the second synchronous wheel 54 or the second synchronous wheel 54 needs to rotate, it is necessary to control the telescopic end of the electric push rod 61 to drive the push plate 611 and the clamping shaft 612 to move upward, and the end of the clamping shaft 612 is clamped in the inside of the two-way toothed disc 62. Therefore, after the two-way toothed disc 62 moves upward and meshes with the second toothed disc 64, the second synchronous shaft 65 and the third gear 66 can be rotated, and the two-way toothed disc 62 moves downward and meshes with the first toothed disc 63, which can realize the rotation of the second synchronous wheel 54, and at this time, it can drive the rotation of the second synchronous belt 541 and the limit shaft 53.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-checking filter element structure for a filtering device, comprising a filter body (1) and a filter element body (21), characterized in that: A support plate (22) is fixedly connected to the inside of the filter body (1); the filter element body (21) is rotatably sleeved on the upper end surface of the support plate (22); a knocking ring (211) is fixedly connected to the outer wall of the filter element body (21); a filter cloth (212) for filtering gas is arranged inside the filter element body (21); a transmission mechanism (2) for driving the filter element body (21) to rotate is arranged on the upper end surface of the support plate (22); a plurality of knocking mechanisms (3) for knocking the filter element body (21) to generate vibration are arranged on the inner side wall of the filter body (1); The end surface is integrally formed and connected to an upper sealing member (11); an opening and closing mechanism (4) for preventing gas from passing through is provided at the boundary between the filter body (1) and the upper sealing member (11); an outer wall of the filter body (1) is fixedly connected to a side frame (17); a driving mechanism (5) for driving the transmission mechanism (2) and the opening and closing mechanism (4) is provided inside the side frame (17); a clutch mechanism (6) for regulating the kinetic energy of the transmission mechanism (2) and the opening and closing mechanism (4) is provided inside the side frame (17); and a negative pressure mechanism (7) for extracting gas is symmetrically provided at the inner top end of the upper sealing member (11).

2. A self-checking filter element structure for filtering equipment according to claim 1, characterized in that: The filter body (1) comprises an ash discharge pipe (12) symmetrically fixedly connected to the upper end surface of the upper sealing member (11); the interior of the ash discharge pipe (12) is sealedly connected to a removable sealing plug (13); an air inlet pipe (14) for supplying air into the interior of the filter body (1) is fixedly connected at a symmetrical position between the outer wall of the filter body (1) and the side frame (17); a lower cover (15) is bolted to the lower end surface of the filter body (1); an air outlet pipe (16) is fixedly connected to the lower end surface of the lower cover (15); an end of the air outlet pipe (16) extends into the interior of the filter body (1); an extended end of the air outlet pipe (16) is rotatably sleeved with the interior of the filter element body (21); a flow sensor (19) for detecting gas flow and pressure is installed on the inner wall of the air outlet pipe (16); and a control panel (18) for receiving electrical signals from the flow sensor (19) is installed on the outer wall of the side frame (17).

3. A self-checking filter element structure for filtering equipment according to claim 2, characterized in that: The transmission mechanism (2) comprises a fixed sleeve (23) fixedly connected to the inside of the filter body (1); an extension plate (231) is symmetrically fixedly connected to one side of the fixed sleeve (23) close to the filter element body (21); a cleaning flexible plate (232) in contact with the outer wall of the filter element body (21) is fixedly connected to the sides of the two extension plates (231) away from each other; a gear ring (24) is rotatably connected to the inside of the fixed sleeve (23); a plurality of second fixed shafts (27) are fixedly connected to the inside of the filter body (1) above the filter element body (21); a first bearing frame (26) is fixedly connected to the intersection of the plurality of second fixed shafts (27); a first fixed shaft (25) is fixedly connected to the inside of the first bearing frame (26) via a bearing; an end of the first fixed shaft (25) is fixedly connected to the center of the upper end surface of the filter element body (21); and a first synchronous wheel (28) is fixedly sleeved on the outer wall of the first fixed shaft (25).

4. The self-checking filter element structure for filtering equipment according to claim 3, characterized in that: The knocking mechanism (3) comprises a fixing plate (31) fixedly connected to the inner side wall of the filter body (1) and a fixing bracket (34) fixedly connected to one side of the fixing plate (31); the upper end surface of the fixing plate (31) is fixedly connected to a gear box (32); the inner bottom end of the gear box (32) is rotatably sleeved with a first bevel gear (321) via a bearing; the inner side wall of the gear box (32) is rotatably sleeved with a second bevel gear (322) via a bearing; the first bevel gear (321) and the second bevel gear (322) are meshed for transmission; the lower end surface of the first bevel gear (321) is coaxially fixedly connected to a first gear (33) meshed for transmission with a gear ring (24); the first gear The first bevel gear (33) is located below the gear box (32); one end of the second bevel gear (322) away from the first bevel gear (321) is fixedly connected to the first synchronization shaft (35); the first synchronization shaft (35) is rotatably sleeved with the gear box (32); an end of the first synchronization shaft (35) is fixedly connected to an inclined plate (36); a bottom end of the inclined plate (36) away from the gear box (32) is fixedly connected to a stop shaft (37); a knocking frame (38) is rotatably connected inside the fixed bracket (34); a side of the knocking frame (38) close to the gear box (32) is symmetrically fixedly connected to an arc plate (381); and the stop shaft (37) is sleeved inside the arc plate (381).

5. A self-checking filter element structure for filtering equipment according to claim 4, characterized in that: The opening and closing mechanism (4) comprises a limit frame (41) fixedly connected to the junction of the filter body (1) and the upper sealing member (11); a collar (42) is rotatably sleeved on the outer wall of the limit frame (41); an arc-shaped rack (421) is fixedly connected to the outer wall of the collar (42); a plurality of connecting rods (43) are fixedly connected to the outer wall of the collar (42) in a circular array; a concentric plate (44) is coaxially fixedly connected to the upper end surface of the first bearing frame (26); and the concentric plate (44) is fixedly connected to the outer wall of the collar (42). A plurality of fan blades (45) are rotatably sleeved in a circular array on the outer wall of the concentric plate (44), and a sealing strip is provided at the overlapping end of each of the fan blades (45); one end of the fan blade (45) away from the concentric plate (44) is fixedly connected to an auxiliary rod (46), and the auxiliary rod (46) extends to the outer wall of the limit frame (41); one end of the auxiliary rod (46) away from the fan blade (45) is fixedly connected to a limit buckle (461), and the connecting rod (43) is rotatably sleeved inside the limit buckle (461).

6. A self-checking filter element structure for filtering equipment according to claim 5, characterized in that: The driving mechanism (5) comprises a driving motor (51) fixedly connected to the inner bottom end of the side frame (17); the output end of the driving motor (51) is fixedly connected to a driving shaft (511); the outer wall of the driving shaft (511) is provided with a spline groove (512); the outer wall of the driving shaft (511) is rotatably sleeved with a second synchronous wheel (54); the inner side wall of the filter body (1) is symmetrically fixedly connected to a second bearing frame (531) on one side close to the side frame (17); the interior of the second bearing frame (531) is rotatably sleeved with a bearing to limit the rotation of the bearing. A shaft (53), one end of the limiting shaft (53) close to the fixed sleeve (23) is fixedly connected to a second gear (532) meshing with the gear ring (24) for transmission, one end of the limiting shaft (53) away from the second gear (532) is fixedly connected to a third synchronous wheel (533), the outer walls of the second synchronous wheel (54) and the third synchronous wheel (533) are sleeved with a second synchronous belt (541), and the outer walls of the first synchronous wheel (28) and the third synchronous wheel (533) are located below the second synchronous belt (541) and are sleeved with a first synchronous belt (29).

7. A self-checking filter element structure for filtering equipment according to claim 6, characterized in that: A sealing plate (52) is symmetrically fixedly connected inside the side frame (17), a sealing bearing (521) is fixedly connected inside the sealing plate (52), and the drive shaft (511) is fixedly connected to the inside of the sealing bearing (521).

8. The self-checking filter element structure for filtering equipment according to claim 7, characterized in that: The clutch mechanism (6) comprises an electric push rod (61) symmetrically fixedly connected to the upper end surface of a sealing plate (52) near one side of the drive motor (51); a push plate (611) is fixedly connected to the telescopic end of the electric push rod (61); a clamping shaft (612) is symmetrically fixedly connected to the inner side wall of the push plate (611); a bidirectional toothed disc (62) is slidably sleeved on the outer wall of the drive shaft (511) at the position of the spline groove (512); the clamping shaft (612) is rotatably sleeved on the outer wall of the bidirectional toothed disc (62); and the second synchronous wheel (54) is fixedly connected to the side near the bidirectional toothed disc (62). A first toothed disc (63) is connected, and the first toothed disc (63) is rotatably sleeved with the drive shaft (511); a second synchronous shaft (65) is fixedly connected to the inner side wall of another sealed bearing (521), and the sealed bearing (521) is fixedly connected at the longitudinal center of the second synchronous shaft (65); two ends of the second synchronous shaft (65) are respectively fixedly connected to a third gear (66) and a second toothed disc (64); the third gear (66) is meshed with the arc-shaped rack (421) for transmission; and the first toothed disc (63) and the second toothed disc (64) are both meshed with the bidirectional toothed disc (62) for transmission.

9. A self-checking filter element structure for filtering equipment according to claim 8, characterized in that: The negative pressure mechanism (7) comprises an outer frame (71) symmetrically fixedly connected to the top end of the upper sealing member (11), a negative pressure fan (72) is arranged inside the outer frame (71), and a protective cover (73) is fixedly connected to the inside of the outer frame (71) below the negative pressure fan (72).

10. The method for using the self-checking filter element structure for filtering equipment according to claim 9, characterized in that: S1. When in use, first remove the sealing plug (13) from the end of the ash discharge pipe (12), then use the clutch mechanism (6) to transfer the kinetic energy of the driving mechanism (5) to the opening and closing mechanism (4), so that the opening and closing mechanism (4) can be opened. When the opening and closing mechanism (4) is opened and the fan blades (45) form a certain angle, the kinetic energy of the opening and closing mechanism (4) can be disconnected. At this time, the filter body (1) and the interior of the upper sealing member (11) are connected. Then, after the external power source is connected to the negative pressure fan (72), the clutch mechanism (6) can be used to transfer the kinetic energy again to the mechanism that needs to work next; S2. With the help of the clutch mechanism (6), the kinetic energy of the driving mechanism (5) is transmitted to the transmission mechanism (2), so that the filter element body (21) can be rotated. A cleaning flexible plate (232) is provided inside the filter body (1). When the filter element body (21) rotates, the attachments on the outer wall thereof can be cleaned to avoid clogging of the holes. S3. With the help of the clutch mechanism (6), the second synchronous wheel (54) and the second synchronous belt (541), the limit shaft (53) can be rotated, and the limit shaft (53) can drive the knocking mechanism (3) to move through the second gear (532) and the gear ring (24). When the knocking mechanism (3) starts to work, the knocking frame (38) can realize the knocking movement of the knocking ring (211), so that the filter element body (21) vibrates when rotating, which makes it easier to clean the attached matter. Since the negative pressure mechanism (7) is turned on, the air flow inside the filter body (1) and the upper sealing member (11) will rise rapidly under the influence of the negative pressure fan (72), and drive the dust to be discharged through the dust discharge pipe (12) to avoid accumulation inside. S4. After working for a period of time, the attachments on the filter element body (21) will be effectively reduced. At this time, the kinetic energy of the transmission mechanism (2) and the knocking mechanism (3) is still disconnected through the clutch mechanism (6), and the kinetic energy is connected to the opening and closing mechanism (4), and the fan blade (45) is closed again to prevent a large amount of gas from entering the interior of the upper sealing member (11) when the device is in use, resulting in contamination with a large amount of attachments.

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