Combined bag-type dust remover for process dust removal

Abstract

The invention relates to the technical field of bag-type dust removers, in particular to a combined bag-type dust remover for process dust removal, which comprises: a shell, the top of the shell is provided with an air outlet pipe, and the bottom of the shell is provided with a feed opening; a fixing ring is arranged at the end of the cloth bag, a circular ring is arranged outside the cloth bag, a vertical rod is arranged on the surface of the circular ring, a supporting frame is arranged in the shell, a butt joint opening is formed in the bottom of the shell, a round shell is arranged at the bottom of the butt joint opening, a rotating shaft is arranged in the round shell, and a rotating plate is arranged on the surface of the rotating shaft. The transverse plate is arranged in the dust outlet; the device has the beneficial effects that a vertical rod moves along with a connecting rod, a circular ring on the surface of the vertical rod moves along with the vertical rod, the circular ring makes contact with the surface of a cloth bag, dust on the surface of the cloth bag falls off, a second arc-shaped rod is connected to the surface of the bottom circular ring, the second arc-shaped rod moves along with the circular ring, and the second arc-shaped rod drives a rubbing rod to move; and the rubbing rod collides with the rubbing ball, so that the inner wall of the shell vibrates.

Description

Technical Field

[0001] The invention relates to the technical field of bag dust collectors, and in particular to a combined bag dust collector for process dust removal. Background Art

[0002] Bag dust collector is a very common dust removal equipment in industrial production process. Bag dust collector sends dusty air into the dust collector box through the air inlet pipe. The dusty air passes through the bag, and the dust in it is filtered by the bag and falls into the ash hopper for collection. The filtered air is discharged into the atmosphere. In the prior art, patent CN110075626B includes a box body and a plurality of cloth bags arranged in the box body, a partition plate fixedly connected to the inner wall of the box body, an air inlet pipe arranged on one side of the box body, a fan fixedly connected to the air inlet pipe, two first shunt pipes fixedly connected to the air inlet pipe, a first connecting pipe fixedly connected to the first shunt pipe, two second shunt pipes fixedly connected to both sides of the first connecting pipe, and a second connecting pipe fixedly connected to the second shunt pipe. The box body is divided into four chambers by three partition plates, the air inlet pipe sends the dust-containing air to the first shunt pipes on both sides respectively, the two first shunt pipes send the air evenly to the second shunt pipes on both sides of the first shunt pipe, and the four second shunt pipes send the air to the four chambers respectively, so that the air intake of the cloth bags in the four chambers is more uniform; However, when the existing bag filter is in use, a large amount of dust will remain on the surface of the bag, affecting the filtering effect, and the dust remaining inside the dust collector is difficult to remove because it adheres to the inner wall of the dust collector. Summary of the invention

[0003] The object of the present invention is to provide a combined bag filter for process dust removal to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: a combined bag dust collector for process dust removal, comprising: The outer shell has an air outlet pipe at the top and a material discharge port at the bottom; A cloth bag, a fixing ring is arranged at the end of the cloth bag, a circular ring is arranged outside the cloth bag, a vertical rod is arranged on the surface of the circular ring, a support frame is arranged inside the shell, a docking port is arranged at the bottom of the shell, a circular shell is arranged at the bottom of the docking port, a rotating shaft is arranged inside the circular shell, and a rotating plate is arranged on the surface of the rotating shaft; and a horizontal plate, which are arranged inside the dust outlet.

[0005] Preferably, a partition is fixed inside the shell, the partition is located at the top of the inside of the shell, a through hole is opened on the surface of the partition, fixing rings are provided at the top and bottom of the cloth bag, the fixing ring at the top of the cloth bag is connected to the bottom of the partition, the fixing ring at the bottom of the cloth bag is connected to the surface of the support frame, a first arc rod is fixed to the bottom of the support frame, the first arc rod is provided in multiple groups, and the other end of the first arc rod is fixed to the inside of the shell.

[0006] Preferably, the outside of the cloth bag is provided with multiple groups of rings, the surfaces of the rings are connected to vertical rods, the rings move with the vertical rods, and contact the surface of the cloth bag after movement, an air intake pipe is fixed to the surface of the outer shell, a second arc rod is fixed to the surface of the bottom vertical rod, a scratch rod is fixed to the end of the second arc rod, a round cover is fixed to the surface of the scratch rod, a rolling magnet is provided inside the round cover, a scratch ball is fixed to the inner wall of the outer shell, multiple groups of scratch balls are provided, and when the scratch rod moves, the surface of the scratch rod will hit the surface of the scratch ball.

[0007] Preferably, the docking port is fixed to the bottom of the discharge port by a screw, a round shell is fixed to the bottom of the docking port, a dust outlet is fixed to the bottom of the round shell, a round groove is opened inside the round shell, a rotating shaft is inserted in the round groove, the rotating shaft can rotate in the round groove, a motor is fixed to the surface of the round shell, the motor can drive the rotating shaft to rotate, and multiple groups of rotating plates are fixed to the surface of the rotating shaft, and the rotating plates rotate with the rotating shaft.

[0008] Preferably, a transverse plate is inserted in the dust outlet, and the transverse plate can move laterally in the dust outlet. A force-bearing plate is fixed on the surface of the transverse plate, and the force-bearing plate is located inside the dust outlet. The transverse plate moves with the force-bearing plate, and the rotating plate will hit the surface of the force-bearing plate during rotation, causing the force-bearing plate to move, and the force-bearing plate drives the transverse plate to move.

[0009] Preferably, a fixed block is fixed on the surface of the dust outlet, a spring is arranged on the surface of the fixed block, the other end of the spring is connected to an extension plate, the extension plate is fixed at both ends of the horizontal plate, the extension plate moves with the horizontal plate, a plug-in rod is fixed on the surface of the extension plate, the plug-in rod moves with the extension plate, a reinforcing rod is fixed on the end of the horizontal plate, the other end of the reinforcing rod is fixed on the surface of the plug-in rod, and the reinforcing rod moves with the plug-in rod.

[0010] Preferably, an extension block is fixed to the surface of the shell, a movable groove is provided inside the extension block, a movable block is arranged in the movable groove, the movable block can move in the movable groove, an extension rod is fixed to the bottom of the movable block, a plug-in hole is provided at the bottom of the extension rod, the bottom of the plug-in rod can be plugged into the plug-in hole, so that the extension rod moves with the plug-in rod.

[0011] Preferably, a connecting rod is fixed on the top of the moving block, the other end of the connecting rod is connected to the surface of the vertical rod, and the connecting rod can drive the vertical rod to move.

[0012] Preferably, the interior of the air inlet pipe is connected to the interior of the shell, and the air that needs to be dusted enters the interior of the shell through the air inlet pipe, the bag removes dust from the air, and the dusted air enters the interior of the air outlet pipe through the through hole and is discharged through the air outlet pipe.

[0013] Preferably, the second arc rod moves with the circular ring, the second arc rod drives the scratch rod to move, the scratch rod hits the scratch ball, causing the inner wall of the outer shell to vibrate, causing dust on the inner wall of the outer shell to fall off, and a circular cover is provided on the surface of the second arc rod, and the magnet on the surface of the circular cover is adsorbed on the inner wall of the outer shell.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The vertical rod proposed in the present invention moves with the connecting rod, and the ring on the surface of the vertical rod moves with the vertical rod, and the ring contacts the surface of the cloth bag, so that dust on the surface of the cloth bag falls off, and the surface of the bottom ring is connected with a second arc rod, and the second arc rod moves with the ring, and the second arc rod drives the scratch rod to move, and the scratch rod hits the scratch ball, so that the inner wall of the outer shell vibrates, so that dust on the inner wall of the outer shell falls off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the shell of the present invention.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the circular shell of the present invention.

[0018] Figure 4 It is a schematic structural diagram of the shell section from another viewing angle of the present invention.

[0019] Figure 5 It is a structural schematic diagram of the circular shell section from another viewing angle of the present invention.

[0020] Figure 6 It is a schematic diagram of the internal structure of the shell of the present invention.

[0021] Figure 7 for Figure 4 A schematic diagram of the enlarged structure in the middle.

[0022] Figure 8 for Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0023] Fig. 9 It is a schematic diagram of the structure of the scratch rod of the present invention.

[0024] Fig.10 for Figure 6Enlarged schematic diagram of the structure at point C in the middle.

[0025] In the figure: shell 1, partition 2, air outlet pipe 3, through hole 4, vertical rod 5, cloth bag 6, fixed ring 7, feeding port 8, support frame 9, first arc rod 10, air inlet pipe 11, circular ring 12, docking port 13, plug-in rod 14, rotating plate 15, reinforcing rod 16, rotating shaft 17, dust outlet 18, circular groove 19, round shell 20, motor 21, cross plate 22, force plate 23, connecting rod 24, extension block 25, movable groove 26, movable block 27, extension rod 28, plug-in hole 29, extension plate 30, fixed block 31, spring 32, second arc rod 33, circular cover 34, scratch rod 35, scratch ball 36. DETAILED DESCRIPTION

[0026] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0027] See also Figures 1 to 10 , the present invention provides a technical solution: Embodiment 1: A combined bag dust collector for process dust removal comprises: an outer shell 1, an air outlet pipe 3 is arranged on the top of the outer shell 1, and a feeding port 8 is arranged on the bottom of the outer shell 1; a bag 6, a fixing ring 7 is arranged on the end of the bag 6, a circular ring 12 is arranged on the outside of the bag 6, a vertical rod 5 is arranged on the surface of the circular ring 12, a support frame 9 is arranged inside the outer shell 1, a docking port 13 is arranged on the bottom of the outer shell 1, a circular shell 20 is arranged on the bottom of the docking port 13, a rotating shaft 17 is arranged inside the circular shell 20, and a rotating plate 15 is arranged on the surface of the rotating shaft 17; and a transverse plate 22 is arranged inside the dust outlet 18, the force plate 23 drives the transverse plate 22 to move, and after the transverse plate 22 moves, the springs 32 on both sides of the dust outlet 18 are compressed and stretched, and the transverse plate 22 drives the plug-in rod 14 to move, and the plug-in rod 14 is plugged into the plug-in hole 29 at the end of the extension rod 28, so that the extension rod 28 moves with the plug-in rod 14.

[0028] Embodiment 2: On the basis of embodiment 1, a partition 2 is fixed inside the shell 1, the partition 2 is located at the top inside the shell 1, a through hole 4 is opened on the surface of the partition 2, a fixing ring 7 is set at the top and bottom of the cloth bag 6, the fixing ring 7 at the top of the cloth bag 6 is connected to the bottom of the partition 2, the fixing ring 7 at the bottom of the cloth bag 6 is connected to the surface of the support frame 9, a first arc rod 10 is fixed at the bottom of the support frame 9, the first arc rod 10 is provided with multiple groups, the other end of the first arc rod 10 is fixed inside the shell 1, an extension block 25 is fixed on the surface of the shell 1, a moving groove 26 is opened inside the extension block 25, a moving block 27 is set in the moving groove 26, and the moving block 27 can move during movement. The movable groove 26 moves, an extension rod 28 is fixed to the bottom of the movable block 27, and a plug-in hole 29 is provided at the bottom of the extension rod 28. The bottom of the plug-in rod 14 can be plugged into the plug-in hole 29, so that the extension rod 28 moves with the plug-in rod 14, and a connecting rod 24 is fixed to the top of the movable block 27. The other end of the connecting rod 24 is connected to the surface of the vertical rod 5, and the connecting rod 24 can drive the vertical rod 5 to move. The surface of the movable block 27 is connected with the connecting rod 24, and the connecting rod 24 moves with the movable block 27. The other end of the connecting rod 24 is connected to the bottom of the vertical rod 5. The vertical rod 5 moves with the connecting rod 24, and the ring 12 on the surface of the vertical rod 5 moves with the vertical rod 5. The outside of the cloth bag 6 is provided with multiple groups of rings 12, and the surfaces of the rings 12 are connected to the vertical rods 5. The rings 12 move with the vertical rods 5, and the rings 12 contact the surface of the cloth bag 6 after moving. An air intake pipe 11 is fixed to the surface of the outer shell 1, and a second arc rod 33 is fixed to the surface of the bottom vertical rod 5, and a scratch rod 35 is fixed to the end of the second arc rod 33. A round cover 34 is fixed to the surface of the scratch rod 35, and a rolling magnet is arranged inside the round cover 34. Scratching balls 36 are fixed to the inner wall of the outer shell 1. There are multiple groups of scratching balls 36. When the scratching rods 35 move, the surface of the scratching rods 35 will collide with the surface of the scratching balls 36. The interior of the air intake pipe 11 is communicated with the interior of the outer shell 1, and the air that needs to be dusted enters the interior of the outer shell 1 through the air intake pipe 11. The cloth bag 6 The air is dust-removed, and the dust-removed air enters the interior of the air outlet pipe 3 through the through hole 4 and is discharged through the air outlet pipe 3. The second arc rod 33 moves with the ring 12, and the second arc rod 33 drives the scratch rod 35 to move. The scratch rod 35 hits the scratch ball 36, causing the inner wall of the outer shell 1 to vibrate, so that the dust on the inner wall of the outer shell 1 falls off, and a round cover 34 is provided on the surface of the second arc rod 33, and a magnet on the surface of the round cover 34 is adsorbed on the inner wall of the outer shell 1, and the scratch rod 35 hits the scratch ball 36, causing the inner wall of the outer shell 1 to vibrate, so that the dust on the inner wall of the outer shell 1 falls off, and a round cover 34 is provided on the surface of the second arc rod 33, and a magnet is provided on the surface of the round cover 34, so that the round cover 34 is adsorbed on the inner wall of the outer shell 1, so that the scratch rod 35 can always contact the scratch ball 36.

[0029] The docking port 13 is fixed to the bottom of the discharge port 8 by a screw, a round shell 20 is fixed to the bottom of the docking port 13, a dust outlet 18 is fixed to the bottom of the round shell 20, a round groove 19 is provided inside the round shell 20, a rotating shaft 17 is inserted in the round groove 19, the rotating shaft 17 can rotate in the round groove 19, a motor 21 is fixed to the surface of the round shell 20, the motor 21 can drive the rotating shaft 17 to rotate, a plurality of rotating plates 15 are fixed to the surface of the rotating shaft 17, the rotating plates 15 rotate with the rotating shaft 17, a transverse plate 22 is inserted in the dust outlet 18, the transverse plate 22 can move laterally in the dust outlet 18, a force plate 23 is fixed to the surface of the transverse plate 22, the force plate 23 is located inside the dust outlet 18, and the transverse plate 22 rotates with the The force-bearing plate 23 moves, and the rotating plate 15 will hit the surface of the force-bearing plate 23 during rotation, so that the force-bearing plate 23 moves, and the force-bearing plate 23 drives the cross plate 22 to move. A fixed block 31 is fixed on the surface of the dust outlet 18, and a spring 32 is provided on the surface of the fixed block 31. The other end of the spring 32 is connected to the extension plate 30, and the extension plate 30 is fixed at both ends of the cross plate 22. The extension plate 30 moves with the cross plate 22, and a plug-in rod 14 is fixed on the surface of the extension plate 30. The plug-in rod 14 moves with the extension plate 30. A reinforcing rod 16 is fixed on the end of the cross plate 22, and the other end of the reinforcing rod 16 is fixed on the surface of the plug-in rod 14. The reinforcing rod 16 moves with the plug-in rod 14.

[0030] The air enters the interior of the housing 1 through the air inlet pipe 11, and the bag 6 filters the air. The filtered air enters the interior of the air outlet pipe 3 through the through hole 4 and can be discharged. The dust stays on the surface of the bag 6. The bottom and top of the bag 6 are provided with a fixing ring 7. The top of the bag 6 is fixed to the bottom of the partition 2. The bottom of the bag 6 is fixed to the surface of the support frame 9. The support frame 9 is fixed to the interior of the housing 1 through the first arc rod 10. The surface of the discharge port 8 at the bottom of the housing 1 is connected to the docking port 13, and the bottom of the docking port 13 is provided with The circular shell 20 and the motor 21 drive the rotating shaft 17 to rotate, and the rotating shaft 17 drives the rotating plate 15 to rotate, so that when the dust inside the housing 1 falls into the circular groove 19, due to the rotation of the rotating plate 15, the dust will not be blown into the interior of the housing 1 again after falling. The rotating plate 15 touches the force plate 23 during the rotation process, so that the force plate 23 moves, and the force plate 23 drives the horizontal plate 22 to move. After the horizontal plate 22 moves, the springs 32 on both sides of the dust outlet 18 are compressed and stretched, and the horizontal plate 22 drives the plug rod 1 4 moves, the plug rod 14 is plugged into the plug hole 29 at the end of the extension rod 28, so that the extension rod 28 moves with the plug rod 14, and the extension rod 28 drives the moving block 27 to move in the moving groove 26. The surface of the moving block 27 is connected with the connecting rod 24, and the connecting rod 24 moves with the moving block 27. The other end of the connecting rod 24 is connected to the bottom of the vertical rod 5, and the vertical rod 5 moves with the connecting rod 24. The ring 12 on the surface of the vertical rod 5 moves with the vertical rod 5, and the ring 12 contacts the surface of the cloth bag 6, so that Dust on the surface of the cloth bag 6 falls off, and the surface of the bottom ring 12 is connected to a second arc rod 33, the second arc rod 33 moves with the ring 12, the second arc rod 33 drives the scratch rod 35 to move, the scratch rod 35 hits the scratch ball 36, causing the inner wall of the outer shell 1 to vibrate, causing dust on the inner wall of the outer shell 1 to fall off, and a round cover 34 is provided on the surface of the second arc rod 33, and a magnet is provided on the surface of the round cover 34, so that the round cover 34 is adsorbed on the inner wall of the outer shell 1, so that the scratch rod 35 can always contact the scratch ball 36.

[0031] Although the above describes the illustrative specific implementation methods of the present application so that technicians in this technical field can understand the present application, the present application is not limited to the scope of the specific implementation methods. For ordinary technicians in this technical field, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations using the concept of the present application are protected.

Claims

1. A combined bag dust collector for process dust removal, characterized in that: include: A housing (1), wherein an air outlet pipe (3) is provided at the top of the housing (1), and a material discharge port (8) is provided at the bottom of the housing (1); A cloth bag (6), a fixing ring (7) is arranged at the end of the cloth bag (6), a circular ring (12) is arranged outside the cloth bag (6), a vertical rod (5) is arranged on the surface of the circular ring (12), a support frame (9) is arranged inside the outer shell (1), a docking port (13) is arranged at the bottom of the outer shell (1), a circular shell (20) is arranged at the bottom of the docking port (13), a rotating shaft (17) is arranged inside the circular shell (20), a rotating plate (15) is arranged on the surface of the rotating shaft (17); and a horizontal plate (22) is arranged inside the dust outlet (18), a plurality of groups of circular rings (12) are arranged outside the cloth bag (6), the surfaces of the circular rings (12) are all connected to the vertical rod (5), and the circular rings (12) are connected to the vertical rod (5). The ring (12) moves along with the vertical rod (5), and the circular ring (12) contacts the surface of the cloth bag (6) after moving. An air inlet pipe (11) is fixed to the surface of the outer shell (1), a second arc rod (33) is fixed to the surface of the bottom vertical rod (5), a scratch rod (35) is fixed to the end of the second arc rod (33), a round cover (34) is fixed to the surface of the scratch rod (35), a magnet capable of rolling is arranged inside the round cover (34), a scratch ball (36) is fixed to the inner wall of the outer shell (1), and a plurality of groups of the scratch balls (36) are arranged. When the scratch rod (35) moves, the surface of the scratch rod (35) will collide with the surface of the scratch ball (36).

2. The combined bag dust collector for process dust removal according to claim 1 is characterized in that: A partition (2) is fixed inside the shell (1), the partition (2) is located at the top of the inside of the shell (1), a through hole (4) is opened on the surface of the partition (2), fixing rings (7) are arranged at the top and bottom of the cloth bag (6), the fixing ring (7) at the top of the cloth bag (6) is connected to the bottom of the partition (2), the fixing ring (7) at the bottom of the cloth bag (6) is connected to the surface of the support frame (9), a first arc rod (10) is fixed at the bottom of the support frame (9), a plurality of first arc rods (10) are arranged, and the other end of the first arc rod (10) is fixed inside the shell (1).

3. The combined bag dust collector for process dust removal according to claim 2 is characterized in that: The docking port (13) is fixed to the bottom of the material discharge port (8) by means of a screw rod; a round shell (20) is fixed to the bottom of the docking port (13); a dust outlet (18) is fixed to the bottom of the round shell (20); a round groove (19) is provided inside the round shell (20); a rotating shaft (17) is inserted into the round groove (19); the rotating shaft (17) can rotate in the round groove (19); a motor (21) is fixed to the surface of the round shell (20); the motor (21) can drive the rotating shaft (17) to rotate; a plurality of rotating plates (15) are fixed to the surface of the rotating shaft (17); the rotating plates (15) rotate along with the rotating shaft (17).

4. The combined bag dust collector for process dust removal according to claim 3 is characterized in that: A transverse plate (22) is inserted into the dust outlet (18), and the transverse plate (22) can move laterally in the dust outlet (18). A force-bearing plate (23) is fixed on the surface of the transverse plate (22), and the force-bearing plate (23) is located inside the dust outlet (18). The transverse plate (22) moves along with the force-bearing plate (23), and the rotating plate (15) will hit the surface of the force-bearing plate (23) during rotation, so that the force-bearing plate (23) moves, and the force-bearing plate (23) drives the transverse plate (22) to move.

5. The combined bag dust collector for process dust removal according to claim 4 is characterized in that: A fixing block (31) is fixed on the surface of the dust outlet (18), a spring (32) is arranged on the surface of the fixing block (31), the other end of the spring (32) is connected to an extension plate (30), the extension plate (30) is fixed to both ends of the transverse plate (22), the extension plate (30) moves along with the transverse plate (22), a plug-in rod (14) is fixed on the surface of the extension plate (30), the plug-in rod (14) moves along with the extension plate (30), a reinforcing rod (16) is fixed at the end of the transverse plate (22), the other end of the reinforcing rod (16) is fixed to the surface of the plug-in rod (14), and the reinforcing rod (16) moves along with the plug-in rod (14).

6. The combined bag dust collector for process dust removal according to claim 5 is characterized in that: An extension block (25) is fixed on the surface of the housing (1), a movable groove (26) is provided inside the extension block (25), a movable block (27) is arranged in the movable groove (26), and the movable block (27) can move in the movable groove (26), an extension rod (28) is fixed at the bottom of the movable block (27), a plug hole (29) is provided at the bottom of the extension rod (28), the cross plate (22) drives the plug rod (14) to move, and the plug rod (14) is plugged into the plug hole (29) at the end of the extension rod (28), so that the extension rod (28) moves along with the plug rod (14).

7. The combined bag dust collector for process dust removal according to claim 6 is characterized in that: A connecting rod (24) is fixed to the top of the moving block (27), the other end of the connecting rod (24) is connected to the surface of the vertical rod (5), the connecting rod (24) can drive the vertical rod (5) to move, the connecting rod (24) moves along with the moving block (27), the other end of the connecting rod (24) is connected to the bottom of the vertical rod (5), and the vertical rod (5) moves along with the connecting rod (24).

8. The combined bag dust collector for process dust removal according to claim 7 is characterized in that: The interior of the air inlet pipe (11) is in communication with the interior of the outer shell (1); air that needs to be dusted enters the interior of the outer shell (1) through the air inlet pipe (11); the bag (6) removes dust from the air; the dusted air enters the interior of the air outlet pipe (3) through the through hole (4) and is discharged through the air outlet pipe (3).

9. The combined bag dust collector for process dust removal according to claim 8 is characterized in that: The second arc-shaped rod (33) moves along with the circular ring (12), and the second arc-shaped rod (33) drives the scratch rod (35) to move. The scratch rod (35) hits the scratch ball (36), causing the inner wall of the outer shell (1) to vibrate, so that dust on the inner wall of the outer shell (1) falls off. A circular cover (34) is provided on the surface of the second arc-shaped rod (33), and a magnet on the surface of the circular cover (34) is adsorbed on the inner wall of the outer shell (1).

Images