Bagged filter

Abstract

The invention relates to the technical field of filtering devices, and discloses a bagged filter, which comprises: a box body, the top side of which is provided with an air inlet and the bottom side of which is provided with an air outlet; the filtering mechanism comprises a fixing frame, a filter bag and a flapping assembly, the fixing frame is connected into the box body, the filter bag is connected into the fixing frame, a plurality of upper openings are formed in the top side of the filter bag, a plurality of lower openings are formed in the bottom side of the filter bag at intervals in the left-right direction, the flapping assembly is connected to the fixing frame, and the flapping assembly is provided with a flapping plate capable of swinging in a reciprocating mode in the left-right direction; the plurality of beating plates are respectively inserted into the plurality of upper openings; the closing assembly comprises a plurality of electromagnets which are connected into the box body in a sliding mode in the left-right direction, the electromagnets are arranged on the left side and the right side of any lower opening correspondingly, and the two electromagnets attract each other when powered on and tightly close the bottoms of the filter bags so as to close the lower openings. Therefore, the service life of the filter bag is prolonged, and the use cost of the bagged filter is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of filtering devices, and in particular to a bagged filter. Background Art

[0002] Bag-type air filter device is an air filter classified according to its product form. The filter material of this device is specially designed into a bag-like structure to effectively filter particulate matter in the air. As a common air filtration equipment widely used in many fields, bag-type air filter device plays an important role in industrial production, environmental protection, indoor air purification and many other aspects.

[0003] As the core component of the bag-type air filter device, the filter bag is mainly used to intercept and filter particulate matter in the air. However, during use, the filter bag will gradually become clogged, resulting in a gradual decrease in filtration efficiency. Therefore, in order to ensure the air filtration effect of the filter bag, the filter bag needs to be replaced frequently, which results in a high overall maintenance cost. Therefore, there is an urgent need for a bag filter that can extend the service life of the filter bag, thereby reducing the cost of use. Summary of the invention

[0004] The object of the present invention is to provide a bag filter to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0005] The solution of the present invention to solve its technical problem is: A bag filter comprises: a box body, a top side of which is provided with an air inlet, and a bottom side of which is provided with an air outlet; a filtering mechanism, which comprises a fixed frame, a filter bag and a flapping assembly, the fixed frame is connected to the box body, the filter bag is connected to the fixed frame, the top side of the filter bag is provided with a plurality of upper openings at intervals along the left and right directions, the bottom side of the filter bag is provided with a plurality of lower openings at intervals along the left and right directions, the plurality of upper openings and the plurality of lower openings are staggered with each other, the flapping assembly is connected to the fixed frame, the flapping assembly has a flapper that can swing back and forth along the left and right directions, the flapping assembly is provided with a plurality of flappers along the left and right directions, and the plurality of flappers are respectively inserted into the plurality of upper openings; a closing assembly, which comprises a plurality of electromagnets slidably connected to the box body along the left and right directions, the electromagnets are respectively provided on the left and right sides of any one of the lower openings, and when the two electromagnets are energized, they attract each other and tighten the bottoms of the filter bag to each other to close the lower opening.

[0006] This technical solution has at least the following beneficial effects: when in use, the electromagnets located on the left and right sides of the lower opening in the closing component are energized to attract each other, and the lower opening at the bottom of the filter bag is closed together, thereby closing the lower opening at the bottom of the filter bag, and the gas to be filtered is introduced from the air inlet on the top side of the box body. The gas enters the box body, and after being filtered by the filter bag, large particles are intercepted in the filter bag, and the gas passes through the filter bag and is discharged from the air outlet on the bottom side of the box body. When the filter bag needs to be cleaned or the filter bag has been used for a long time, the flapping component installed in the fixed frame is turned on, and the flapper inserted into the upper opening in the flapping component swings back and forth in the left and right directions to flap the filter bags on the left and right sides of the upper opening, and the large particles attached to the filter bag are knocked off, thereby reducing the phenomenon of reduced filtration efficiency due to the clogging of the filter bag by large particles during the gas purification process, and the gas The magnetic particles in the filter bag can be adsorbed to the bottom of the filter bag due to the attraction of the electromagnet, which is beneficial to remove metal particles such as iron and copper in the gas. When the material in the filter bag needs to be cleared out, the electromagnets on the left and right sides of the lower opening in the closed assembly are energized to repel each other, thereby removing the force that tightens the bottom of the filter bag. Then the electromagnet is stopped from being energized, so that the material accumulated in the filter bag can fall from the lower opening to the bottom of the box, and the filtered material is collected from the bottom of the box. After completion, the electromagnets on the left and right sides of the lower opening in the closed assembly are energized to attract each other, so that the lower opening at the bottom of the filter bag can be re-tightened. In this way, by beating the filter bag, the phenomenon of large particles clogging the filter bag during the purification process can be reduced, which is beneficial to ensure the filtration efficiency of the filter bag, thereby extending the service life of the filter bag and reducing the use cost of bag filters.

[0007] As a further improvement of the above technical solution, the fixed frame includes a lower frame body, a support rod, an upper frame body and a frame bar, the bottom side of the frame bar is provided with a mounting groove, a plurality of the frame bars are connected in the upper frame body at intervals along the left and right directions, the support rod is connected to the upper frame body, the plurality of support rods are respectively opposite to the front and rear sides of the frame bar, the plurality of upper openings are respectively opposite to the plurality of mounting grooves, the plurality of flapping assemblies are respectively arranged in the plurality of mounting grooves, the upper frame body is connected to the top side of the lower frame body, and the frame bar presses the top side of the filter bag against the support rod. When the fixed frame and the filter bag are assembled with each other, the filter bag is placed on the top side of the lower frame, and the two supporting rods facing the same frame bar in the lower frame are a supporting group. Multiple supporting groups are arranged at intervals in the lower frame, and the bag body of the filter bag passes through the gaps between the multiple supporting groups. The supporting group is used to support the connecting position between two adjacent bag bodies, and then the upper frame is connected to the lower frame. The frame bar in the upper frame is used to press the top side of the filter bag against the supporting rod. At this time, the clapping board in the clapping assembly passes through the spacing area between the two supporting rods in the supporting group, thereby entering between the two bag bodies, so that the filter bag can be fixed in the fixed frame. When the clapping assembly is working, the clapping board can clap the two adjacent bag bodies.

[0008] As a further improvement of the above technical solution, the upper frame and the lower frame are detachably connected. The upper frame can be removed from the lower frame to replace the filter bag, thereby improving the convenience of use and maintenance.

[0009] As a further improvement of the above technical solution, the bottom sides of the plurality of frame bars are respectively connected with first elastic pads, and the plurality of first elastic pads respectively extend around the plurality of mounting grooves. When the frame bar presses the filter bag down to the top side of the support rod, the filter bag is pressed by the first elastic pad, which can improve the pressing effect of the filter bag, thereby better fixing the filter bag, especially pressing and fixing the positions on both sides of the upper opening of the filter bag.

[0010] As a further improvement of the above technical solution, a motor is arranged in the upper frame, and the beating assembly includes a screw, a corrugated plate, a slider, a transmission rod, a rack, a gear, a first spring and a connecting seat, the motor is connected to the screw by transmission, the screw is connected to the mounting groove along the axis of the front-to-back direction, the corrugated plate is connected to the bottom of the mounting groove, the bottom surface of the corrugated plate is formed with a corrugated surface extending along the front-to-back direction, the slider is connected to the mounting groove in a sliding manner along the front-to-back direction, the slider is threadedly connected to the screw, the transmission rod and the rack are connected to the slider in a sliding manner along the up-down direction, the bottom end of the transmission rod is connected to the rack, the first spring is located at the bottom end of the rack, the first spring has a tendency to press the rack upward and make the top end of the transmission rod against the corrugated surface, the top of the connecting seat is connected to the bottom side of the slider along the axis of the front-to-back direction, the gear is synchronously connected to the connecting seat, the gear and the rack are meshed with each other, and the top end of the clapper is connected to the connecting seat. When it is necessary to use a clapper to beat the filter bag, the motor is used to drive the screw to rotate. Since the slider is threadedly connected to the screw and the slider is slidably connected to the installation groove along the front-to-back direction, the slider can move in the installation groove along the front-to-back direction, driving the transmission rod in the slider to move along the front-to-back direction. Since the first spring presses the transmission rod through the rack, the top of the transmission rod is against the corrugated surface. As the corrugated surface rises and falls, the transmission rod moves up and down. At this time, the rack can drive the gear to rotate back and forth through the meshing with the gear. The gear transmits power to the clapper through the connecting seat, thereby driving the clapper to swing back and forth. In this way, the clapper can move in the front-to-back direction and swing back and forth in the left and right directions to beat the filter bags on both sides, thereby improving the cleaning effect of the filter bags.

[0011] As a further improvement of the above technical solution, the motor is connected to the plurality of screw rods. The same motor drives the plurality of screw rods to rotate, so that the plurality of flapping assemblies can be driven to flap the plurality of bag bodies at the same time, thereby reducing the driving source of the flapping assemblies and making the overall structure more concise.

[0012] As a further improvement of the above technical solution, a ball is connected to the top of the transmission rod, and the ball abuts against the corrugated surface. When the transmission rod moves along the corrugated surface, the ball abuts against the corrugated surface, which can reduce the friction between the transmission rod and the corrugated surface and improve the convenience of sliding the transmission rod.

[0013] As a further improvement of the above technical solution, the electromagnets located on both sides of the lower opening are connected to second elastic pads on the sides facing each other. The two electromagnets press the bottom of the filter bag tightly through the second elastic pads, thereby improving the effect of tightening and closing the lower opening of the filter bag.

[0014] As a further improvement of the above technical solution, the two electromagnets located on both sides of the lower opening are respectively provided with receiving grooves facing each other, and a second spring is respectively connected between the two receiving grooves. When the two electromagnets close the lower opening at the bottom of the filter bag, the two electromagnets compress the second spring, and when the electromagnets are stopped from being energized, the elastic force of the spring can spread the two electromagnets apart from each other, thereby reducing the energization of the electromagnets and making them more energy-efficient.

[0015] As a further improvement of the above technical solution, a dust collection drawer is provided at the bottom of the box body. When the filtered material in the filter bag is poured out from the lower opening, it falls into the dust collection drawer at the bottom of the box body, and then the dust collection drawer can be pulled out from the bottom of the box body for cleaning and recycling, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly describes the drawings required for use in the description of the embodiments. Obviously, the drawings described are only part of the embodiments of the present invention, not all of the embodiments, and those skilled in the art can also obtain other design solutions and drawings based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention, wherein the box body is partially cut away.

[0018] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0019] Figure 3 It is a schematic diagram of the filter mechanism structure of the present invention, wherein the fixing frame and the filter bag are partially cut away.

[0020] Figure 4 yes Figure 3 A partial enlarged schematic diagram of part B.

[0021] Figure 5 yes Figure 3 A partial enlarged schematic diagram of part C.

[0022] Figure 6 It is a schematic diagram of the structure of the beating assembly of the present invention, in which the slider is partially cut away.

[0023] In the accompanying drawings: 1-box, 11-air inlet, 12-air outlet, 31-fixed frame, 311-lower frame, 312-support rod, 313-upper frame, 314-frame bar, 315-installation groove, 316-first elastic pad, 32-filter bag, 331-clapper, 332-screw, 333-corrugated plate, 334-slider, 335-transmission rod, 336-rack, 337-gear, 338-first spring, 339-connecting seat, 340-ball, 41-electromagnet, 42-second elastic pad, 43-second spring, 5-dust drawer. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection relationships mentioned in the text do not refer to the direct connection of components, but refer to the fact that a better connection structure can be formed by adding or reducing connecting accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0025] Reference Figures 1 to 3A bag filter comprises: a box body 1, a top side of which is provided with an air inlet 11, and a bottom side is provided with an air outlet 12; a filtering mechanism, which comprises a fixing frame 31, a filter bag 32 and a flapping assembly, wherein the fixing frame 31 is connected to the box body 1, and the filter bag 32 is connected to the fixing frame 31, and the top side of the filter bag 32 is provided with a plurality of upper openings at intervals along the left-right direction, and the bottom side of the filter bag 32 is provided with a plurality of lower openings at intervals along the left-right direction, and the plurality of upper openings and the plurality of lower openings are staggered with each other. In actual application, the filter bag 32 has a plurality of bag bodies connected to each other along the left-right direction, and the top sides of the plurality of bag bodies are connected to each other. At this time, the upper The opening is arranged at the connection between the top sides of two adjacent bag bodies, and the lower opening is arranged at the bottom side of the bag body. The flapping assembly is connected to the fixed frame 31, and the flapping assembly has a flapper 331 that can swing back and forth along the left and right directions. The flapping assembly is arranged in multiple in the left and right directions, and the multiple flappers 331 are respectively inserted into the multiple upper openings; the closing assembly includes multiple electromagnets 41 slidably connected to the box body 1 along the left and right directions, and the electromagnets 41 are respectively arranged on the left and right sides of any one of the lower openings. When the two electromagnets 41 are energized, they attract each other and tighten the bottom of the filter bag 32 to close the lower opening.

[0026] The filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32. The filter bag 32 is filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32. The filter bag 32 is filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag 32 is then filtered out of the filter bag 32 and the filter bag The magnetic particles can be adsorbed to the bottom of the filter bag 32 due to the energized attraction of the electromagnet 41, which is beneficial to removing metal particles such as iron and copper in the gas. When the material in the filter bag 32 needs to be cleared out, the electromagnets 41 located on the left and right sides of the lower opening in the closed assembly are energized to repel each other, thereby removing the force that tightens the bottom of the filter bag 32 together. Then, the electromagnet 41 is stopped from being energized, so that the material accumulated in the filter bag 32 can fall from the lower opening to the bottom of the box body 1, and the filtered material is collected from the bottom of the box body 1. After completion, the electromagnets 41 located on the left and right sides of the lower opening in the closed assembly are energized to attract each other, so that the lower opening at the bottom of the filter bag 32 can be re-tightened. In this way, by beating the filter bag 32, the phenomenon of large particles clogging the filter bag 32 during the purification process can be reduced, which is beneficial to ensuring the filtration efficiency of the filter bag 32, thereby extending the service life of the filter bag 32 and reducing the use cost of the bag filter.

[0027] The fixing frame 31 can be used to fix the filter bag 32 and the beating assembly. There are many structural forms. In this embodiment, for example, Figure 3 and Figure 4As shown, the fixed frame 31 includes a lower frame body 311, a support rod 312, an upper frame body 313 and a frame bar 314, the bottom side of the frame bar 314 is provided with a mounting groove 315, a plurality of the frame bars 314 are connected in the upper frame body 313 at intervals along the left and right directions, the support rod 312 is connected to the upper frame body 313, a plurality of the support rods 312 are respectively opposite to the front and rear sides of the frame bar 314, a plurality of the upper openings are respectively opposite to the plurality of the mounting grooves 315, a plurality of the flapping assemblies are respectively arranged in the plurality of the mounting grooves 315, the upper frame body 313 is connected to the top side of the lower frame body 311, and the frame bar 314 presses the top side of the filter bag 32 onto the support rod 312. When the fixed frame 31 and the filter bag 32 are assembled with each other, the filter bag 32 is placed on the top side of the lower frame 311, and the two supporting rods 312 facing the same frame strip 314 in the lower frame 311 are a supporting group. A plurality of supporting groups are arranged at intervals in the lower frame 311. The bag body of the filter bag 32 passes through the gaps between the plurality of supporting groups, and the supporting groups are used to support the connection position between two adjacent bag bodies. Then the upper frame 313 is connected to the lower frame 311, and the frame strip 314 in the upper frame 313 is used to press the top side of the filter bag 32 against the supporting rod 312. At this time, the clapping board 331 in the clapping assembly passes through the spacing area between the two supporting rods 312 in the supporting group, thereby entering between the two bag bodies. In this way, the filter bag 32 can be fixed in the fixed frame 31. When the clapping assembly is working, the clapping board 331 can clap the two adjacent bag bodies.

[0028] Furthermore, the upper frame 313 is detachably connected to the lower frame 311. The upper frame 313 can be removed from the lower frame 311, so that the filter bag 32 can be replaced, thereby improving the convenience of use and maintenance.

[0029] When the frame strips 314 directly press the filter bag 32 against the support rod 312, the friction between the frame strips 314 and the filter bag 32 is small and easy to slip. Therefore, in order to better fix the filter bag 32 at the positions on both sides of the upper opening, in this embodiment, the bottom sides of the plurality of frame strips 314 are respectively connected with first elastic pads 316, and the plurality of first elastic pads 316 respectively extend around the plurality of mounting grooves 315. When the frame strips 314 press the filter bag 32 down against the top side of the support rod 312, the filter bag 32 is pressed against by the first elastic pads 316, which can improve the pressing effect of the filter bag 32, thereby better fixing the filter bag 32, especially the positions on both sides of the upper opening of the filter bag 32.

[0030] The flapping assembly has a driving source that can drive the flapper 331 to swing in the left and right directions. For example, a rotating driving source is directly installed in the upper frame 313, and the flapper 331 is directly driven to swing back and forth by the rotating driving source. In order to increase the flapper 331 to flap the filter bag 32, the flapper 331 can cover the filter bag 32. Figure 5 and Figure 6As shown, in this embodiment, a motor is provided in the upper frame 313, and the beating assembly includes a screw 332, a corrugated plate 333, a slider 334, a transmission rod 335, a rack 336, a gear 337, a first spring 338 and a connecting seat 339. The motor is transmission-connected to the screw 332, and the screw 332 is rotationally connected to the mounting groove 315 along the axis of the front-to-back direction. The corrugated plate 333 is connected to the bottom of the mounting groove 315, and a corrugated surface extending along the front-to-back direction is formed on the bottom surface of the corrugated plate 333. The slider 334 is slidably connected to the mounting groove 315 along the front-to-back direction, and the slider 334 is threadedly connected to the screw 332. The transmission rod 335 and the rack 336 are connected in a sliding manner in the up-down direction in the slider 334. The bottom end of the transmission rod 335 is connected to the rack 336. The first spring 338 is located at the bottom end of the rack 336. The first spring 338 has a tendency to press the rack 336 upward and make the top end of the transmission rod 335 abut against the corrugated surface. The top of the connecting seat 339 is rotatably connected to the bottom side of the slider 334 along the axis in the front-to-back direction. The gear 337 is synchronously connected to the connecting seat 339. The gear 337 and the rack 336 are meshed with each other. The top end of the clapper 331 is connected to the connecting seat 339. When it is necessary to use the clapper 331 to slap the filter bag 32, the motor is used to drive the screw rod 332 to rotate. Since the slider 334 is threadedly connected to the screw rod 332, and the slider 334 is slidably connected to the mounting groove 315 along the front-to-back direction, the slider 334 can move in the mounting groove 315 along the front-to-back direction, driving the transmission rod 335 in the slider 334 to move along the front-to-back direction. Since the first spring 338 presses the transmission rod 335 through the rack 336, the top of the transmission rod 335 is against the corrugated surface. As the corrugated surface rises and falls, the transmission rod 335 moves up and down. At this time, the rack 336 can drive the gear 337 to reciprocate forward and reverse rotation through meshing with the gear 337. The gear 337 transmits the power to the clapper 331 through the connecting seat 339, thereby driving the clapper 331 to swing back and forth. In this way, the clapper 331 can move in the front-to-back direction, and at the same time, it swings back and forth in the left and right directions to slap the filter bags 32 on both sides, thereby improving the cleaning effect of the filter bags 32.

[0031] Furthermore, the motor is in transmission connection with the plurality of screw rods 332. The same motor drives the plurality of screw rods 332 to rotate, so that the plurality of flapping components can be driven to flap the plurality of bag bodies at the same time, thereby reducing the driving source of the flapping components and making the overall structure more concise.

[0032] In some embodiments, a ball 340 is connected to the top of the transmission rod 335, and the ball 340 abuts against the corrugated surface. When the transmission rod 335 moves along the corrugated surface, the ball 340 abuts against the corrugated surface, which can reduce the friction between the transmission rod 335 and the corrugated surface and improve the convenience of sliding of the transmission rod 335.

[0033] In order to improve the closing effect of the electromagnet 41 when tightening the filter bag 32, in this embodiment, the electromagnets 41 located on both sides of the lower opening are connected to the second elastic pads 42 on the opposite sides of the two electromagnets 41. The two electromagnets 41 press the bottom of the filter bag 32 through the second elastic pads 42, thereby improving the closing effect of the lower opening of the filter bag 32.

[0034] Furthermore, in the electromagnets 41 located on both sides of the lower opening, two electromagnets 41 are respectively provided with receiving grooves facing each other, and a second spring 43 is respectively connected between the two receiving grooves. When the two electromagnets 41 close the lower opening at the bottom of the filter bag 32, the two electromagnets 41 compress the second spring 43, and when the electromagnets 41 are stopped from being energized, the elastic force of the spring can spread the two electromagnets 41 apart from each other, so that the energization of the electromagnets 41 can be reduced, and the use is more energy-saving.

[0035] In some embodiments, a dust drawer 5 is provided at the bottom of the housing 1. When the filtered material in the filter bag 32 is poured out from the lower opening, it falls into the dust drawer 5 at the bottom of the housing 1, and then the dust drawer 5 can be pulled out from the bottom of the housing 1 for cleaning and recycling, thereby improving the convenience of use.

[0036] The preferred embodiments of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A bag filter, characterized in that: include: A box body (1) having an air inlet (11) on its top side and an air outlet (12) on its bottom side; A filtering mechanism, comprising a fixed frame (31), a filter bag (32) and a flapping assembly, wherein the fixed frame (31) is connected to the box body (1), the filter bag (32) is connected to the fixed frame (31), a plurality of upper openings are arranged at intervals along the left-right direction on the top side of the filter bag (32), a plurality of lower openings are arranged at intervals along the left-right direction on the bottom side of the filter bag (32), the plurality of upper openings and the plurality of lower openings are staggered, the flapping assembly is connected to the fixed frame (31), the flapping assembly has a flapper (331) that can swing back and forth along the left-right direction, a plurality of the flapping assemblies are arranged along the left-right direction, and the plurality of flappers (331) are respectively inserted into the plurality of upper openings; The closing assembly comprises a plurality of electromagnets (41) slidably connected to the box body (1) along the left-right direction, wherein the electromagnets (41) are respectively arranged on the left and right sides of any one of the lower openings, and when the two electromagnets (41) are energized, they attract each other and tighten the bottoms of the filter bags (32) to close the lower opening.

2. A bag filter according to claim 1, characterized in that: The fixed frame (31) comprises a lower frame body (311), a supporting rod (312), an upper frame body (313) and a frame bar (314); a mounting groove (315) is arranged on the bottom side of the frame bar (314); a plurality of the frame bars (314) are connected in the upper frame body (313) at intervals along the left-right direction; the supporting rod (312) is connected to the upper frame body (313); the plurality of supporting rods (312) are respectively opposite to the front and rear sides of the frame bar (314); the plurality of upper openings are respectively opposite to the plurality of mounting grooves (315); the plurality of beating assemblies are respectively arranged in the plurality of mounting grooves (315); the upper frame body (313) is connected to the top side of the lower frame body (311), and the frame bar (314) presses the top side of the filter bag (32) against the supporting rod (312).

3. A bag filter according to claim 2, characterized in that: The upper frame (313) and the lower frame (311) are detachably connected.

4. A bag filter according to claim 2, characterized in that: The bottom sides of the plurality of frame strips (314) are respectively connected to first elastic pads (316), and the plurality of first elastic pads (316) respectively extend around the plurality of mounting grooves (315).

5. A bag filter according to claim 2, characterized in that: A motor is arranged in the upper frame (313); the beating assembly comprises a screw (332), a corrugated plate (333), a slider (334), a transmission rod (335), a rack (336), a gear (337), a first spring (338) and a connecting seat (339); the motor is transmission-connected to the screw (332); the screw (332) is rotationally connected to the mounting groove (315) along an axis in the front-to-back direction; the corrugated plate (333) is connected to the bottom of the mounting groove (315); a corrugated surface extending in the front-to-back direction is formed on the bottom surface of the corrugated plate (333); the slider (334) is slidably connected to the mounting groove (315) along the front-to-back direction; the slider (334) is threadedly connected to the screw (332); The transmission rod (335) and the rack (336) are slidably connected in the slider (334) along the up-down direction; the bottom end of the transmission rod (335) is connected to the rack (336); the first spring (338) is located at the bottom end of the rack (336); the first spring (338) has a tendency to press the rack (336) upward and make the top end of the transmission rod (335) abut against the corrugated surface; the top of the connecting seat (339) is rotatably connected to the bottom side of the slider (334) along the axis in the front-back direction; the gear (337) is synchronously connected to the connecting seat (339); the gear (337) and the rack (336) are meshed with each other; and the top end of the clapper (331) is connected to the connecting seat (339).

6. A bag filter according to claim 5, characterized in that: The motor is drivingly connected to the plurality of screw rods (332).

7. A bag filter according to claim 5, characterized in that: A ball (340) is connected to the top end of the transmission rod (335), and the ball (340) abuts against the corrugated surface.

8. A bag filter according to claim 1, characterized in that: In the electromagnets (41) located on both sides of the lower opening, the sides of the two electromagnets (41) facing each other are respectively connected to second elastic pads (42).

9. A bag filter according to claim 1, characterized in that: In the electromagnets (41) located on both sides of the lower opening, two electromagnets (41) are respectively provided with receiving grooves facing each other, and a second spring (43) is respectively connected between the two receiving grooves.

10. The bag filter according to claim 1, characterized in that: A dust collection drawer (5) is provided on the bottom side of the box body (1).

Images