Bag-type dust collector

Abstract

The utility model relates to a bag-type dust remover, which belongs to the technical field of dust removal equipment and comprises a body, a plurality of bags arranged along the height direction of the body are arranged in the body, and a moving plate perpendicular to the height direction of the body is arranged in the body. The upper end of the cloth bag is provided with a clamping assembly which penetrates through the moving plate and is fixedly connected with the moving plate, the body is internally provided with a lifting assembly for driving the moving plate to move in the height direction of the body, and the body is provided with an unlocking piece for driving the cloth bag to be separated from the moving plate. The device has the effects of conveniently replacing the cloth bag needing to be replaced and improving the utilization rate of the cloth bag.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal equipment, and in particular to a bag dust collector. Background Art

[0002] A bag dust collector usually requires a cage to support the bags from the inside. After long-term use, a large amount of dust will adhere to the surface of the bags, affecting the ventilation effect of the bags. Therefore, the multiple groups of bags inside the dust collector need to be replaced regularly.

[0003] A Chinese patent with publication number CN218011654U discloses a bag dust collector that is easy to replace bags, including a dust collector body, a maintenance door installed on one side of the dust collector body, a baffle fixed inside the dust collector body, a vent hole opened on the baffle, and a movable mounting plate slidably arranged below the baffle. Multiple groups of bag covers can be installed on the movable mounting plate by pressing the mounting assembly, and then the movable mounting plate can drive the multiple groups of bag covers to move vertically upward at the same time by controlling the driving assembly. At this time, the multiple groups of bag covers can be nested on the outside of the cage at the same time. When the movable mounting plate contacts the bottom end of the baffle, the pressing assembly can simultaneously press and fix the multiple groups of bag covers between the baffle and the movable mounting plate, thereby completing the installation of the multiple groups of bag covers and saving a lot of manpower.

[0004] In the related art, when replacing bags on a bag filter, multiple bags need to be replaced as a whole. Therefore, when some bags need to be replaced, it is difficult to replace the bags that need to be replaced individually, which affects the utilization rate of the bags. Utility Model Content

[0005] In order to facilitate the replacement of bags that need to be replaced and improve the utilization rate of bags, the present application provides a bag dust collector.

[0006] The bag dust collector provided in this application adopts the following technical solution:

[0007] A bag dust collector comprises a main body, wherein a plurality of bags are arranged along the height direction of the main body inside the main body, a movable plate perpendicular to the height direction of the main body is provided inside the main body, a clamping assembly passing through the movable plate and fixedly connected to the movable plate is provided at the upper end of the bag, a lifting assembly for driving the movable plate to move along the height direction of the main body is provided inside the main body, and an unlocking member for driving the bag to disengage from the movable plate is provided on the main body.

[0008] By adopting the above technical solution, the unlocking member drives the clamping assembly at the upper end of the cloth bag that needs to be replaced to release the fixation from the movable plate. At this time, the cloth bag that needs to be replaced is separated from the movable plate under the action of the clamping assembly and its own gravity. At this time, the movable plate is driven down by the lifting assembly to facilitate the installation of a new cloth bag on the movable plate. At this time, the lifting assembly drives the movable plate to rise to facilitate the installation of the cloth bag in the main body, thereby achieving the effect of facilitating the replacement of the cloth bag that needs to be replaced and improving the utilization rate of the cloth bag.

[0009] Optionally, the clamping assembly includes a mounting tube fixedly connected to the upper end of the cloth bag, the movable plate is provided with a plurality of mounting holes adapted to the mounting tube, the upper end of the mounting tube passes through the mounting holes, and the upper end of the mounting tube is provided with a fixing member fixed to the movable plate.

[0010] By adopting the above technical solution, the unlocking member drives the fixing member to unlock the fixation of the mounting cylinder and the movable plate, thereby facilitating the removal of the cloth bag. When installing a new cloth bag, the upper end of the mounting cylinder passes through the mounting hole. At this time, the fixing member at the upper end of the mounting cylinder fixes the mounting cylinder and the movable plate, thereby facilitating the installation of the cloth bag on the movable plate, thereby facilitating the replacement of the cloth bag that needs to be replaced, thereby improving the utilization rate of the cloth bag.

[0011] Optionally, the fixing member includes a plurality of fixing blocks which are arranged along the circumference of the mounting tube, inserted in the mounting tube and slidably connected to the mounting tube, one end of the fixing block inserted in the mounting tube is fixedly connected to a first spring, the first spring is fixedly connected to a side wall of the mounting tube, and the upper side of one end of the fixing block away from the mounting tube is arranged to be an inclined surface which is inclined downward and away from the mounting tube.

[0012] By adopting the above technical solution, the fixed block is driven to move in the direction close to the side wall of the mounting cylinder until it completely enters the mounting cylinder, and the mounting cylinder falls under the action of its own gravity and the gravity of the cloth bag. When installing the cloth bag, the upper end of the mounting cylinder is inserted into the mounting hole. At this time, the inclined surface on the upper side of the fixed block abuts against the side wall of the movable plate, and the mounting cylinder continues to be moved. At this time, the fixed block completely enters the mounting cylinder under the squeezing of the side wall of the movable plate until the mounting cylinder passes through the mounting hole. At this time, the first spring recovers its deformation and pushes the fixed block to move until the upper side of the fixed block abuts against the upper side of the movable plate, thereby facilitating the replacement of the cloth bag that needs to be replaced and improving the utilization rate of the cloth bag.

[0013] Optionally, a mounting plate fixedly connected to the inner wall of the main body is provided on the upper side of the movable plate, a cage inserted into the cloth bag is provided on the lower side of the mounting plate, a through hole adapted to the cage is opened on the mounting plate, the unlocking member includes an unlocking rod passing through and slidably connected to the mounting plate and corresponding to the fixed block, the upper ends of the unlocking rods corresponding to the same cloth bag are fixedly connected to the same unlocking plate, and a hydraulic cylinder fixedly connected to the mounting plate is provided on the lower side of the unlocking plate.

[0014] By adopting the above technical solution, the telescopic rod of the hydraulic cylinder contracts and drives the unlocking plate to drive the unlocking rod to move downward until the fixed block is pushed along the side of the fixed block and completely enters the installation cylinder, thereby facilitating the removal of the cloth bag and further facilitating the replacement of the cloth bag that needs to be replaced, thereby improving the utilization rate of the cloth bag.

[0015] Optionally, the lifting assembly includes two screws symmetrically arranged at both ends of the mounting plate and parallel to the height direction of the main body, the upper end of the screw passes through and is rotatably connected to the mounting plate, the other end is rotatably connected to the inner wall of the main body, and a rotating part for driving the screw to rotate is provided on the main body.

[0016] By adopting the above technical solution, the rotating member drives the lead screw to rotate simultaneously and drives the movable plate to rise or fall in the height direction of the main body, thereby facilitating the installation of a new cloth bag on the movable plate and moving the cloth bag to a suitable height, further facilitating the installation of the cloth bag and improving installation efficiency.

[0017] Optionally, the rotating part includes a first bevel gear fixedly connected to the upper end of the screw, a second bevel gear is meshed with the side of the first bevel gears away from each other, a connecting rod is passed through and fixedly connected to the axis of the second bevel gears, and a motor fixedly connected to the main body is installed at one end of the connecting rod.

[0018] By adopting the above technical solution, the motor drives the connecting rod to rotate. At this time, the second bevel gear rotates with the connecting rod and drives the first bevel gear to rotate. At this time, the lead screw rotates with the first bevel gear and drives the movable plate to move in the length direction of the lead screw, thereby facilitating the installation of the cloth bag and improving the installation efficiency.

[0019] Optionally, a fixed column is fixedly connected to the upper end of the cage frame, a sliding plate is provided on the lower side of the fixed column, a second spring is fixedly connected between the sliding plate and the fixed column, and a control component for driving the hydraulic cylinder to shorten is provided on the side of the fixed column close to the sliding plate.

[0020] By adopting the above technical solution, when the cloth bag is working normally, the wind enters the cage through the cloth bag. At this time, the wind entering the cage blows the sliding plate to move toward the fixed column. At this time, the second spring is compressed. When the cloth bag is difficult to filter, the wind is difficult to enter the cage. At this time, the sliding plate does not move, and the control part drives the hydraulic cylinder to shorten. At this time, the mounting cylinder and the moving plate are released and drive the cloth bag to fall, thereby facilitating the removal of the cloth bag and improving the removal efficiency.

[0021] Optionally, the control member includes a pressure sensor mounted on the fixed column, the sliding plate is capable of contacting and squeezing the pressure sensor, the pressure sensor is wirelessly connected to a control host, and the control host is wirelessly connected to the hydraulic cylinder.

[0022] By adopting the above technical solution, when the cloth bags are working normally, wind enters the cage through the cloth bags. At this time, the wind entering the cage blows the sliding plate to move toward the direction close to the fixed column and squeezes the pressure sensor. At this time, the control host receives an electrical signal. When some cloth bags are difficult to filter, the sliding plate does not move and the pressure sensor does not transmit an electrical signal. At this time, the control host controls the hydraulic cylinder to contract, thereby facilitating the removal of the cloth bags and improving the disassembly efficiency.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The unlocking member drives the clamping assembly on the upper end of the cloth bag to be replaced to release the fixation with the movable plate. At this time, the cloth bag to be replaced is separated from the movable plate under the action of the clamping assembly and its own gravity. At this time, the lifting assembly drives the movable plate to descend, so that a new cloth bag can be installed on the movable plate. At this time, the lifting assembly drives the movable plate to rise, so that the cloth bag can be installed in the body, so as to facilitate the replacement of the cloth bag to be replaced and improve the utilization rate of the cloth bag;

[0025] 2. Drive the fixed block to move toward the side wall of the installation cylinder until it completely enters the installation cylinder. The installation cylinder falls under the action of its own gravity and the gravity of the cloth bag. When installing the cloth bag, the upper end of the installation cylinder is inserted into the installation hole. At this time, the inclined surface on the upper side of the fixed block abuts against the side wall of the movable plate. Continue to move the installation cylinder. At this time, the fixed block completely enters the installation cylinder under the pressure of the side wall of the movable plate until the installation cylinder passes through the installation hole. At this time, the first spring recovers its deformation and pushes the fixed block to move until the upper side of the fixed block abuts against the upper side of the movable plate, thereby facilitating the replacement of the cloth bag that needs to be replaced and improving the utilization rate of the cloth bag;

[0026] 3. The telescopic rod of the hydraulic cylinder contracts and drives the unlocking plate to move the unlocking rod downward until the fixed block is pushed along the side of the fixed block and completely enters the installation cylinder, thereby facilitating the removal of the cloth bag and further facilitating the replacement of the cloth bag that needs to be replaced, thereby improving the utilization rate of the cloth bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the bag dust collector in the embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram reflecting the positional relationship between the rotating member and the main body in the embodiment of the present application.

[0029] Figure 3 yes Figure 2 A magnified view of the structure in the middle.

[0030] Explanation of the reference numerals: 1. body; 11. inspection port; 12. inspection plate; 2. mounting plate; 21. cage; 22. through hole; 23. mounting slot; 24. positioning slot; 3. movable plate; 31. cloth bag; 32. mounting hole; 4. lifting assembly; 41. lead screw; 42. rotating member; 421. first bevel gear; 422. second bevel gear; 423. connecting rod; 424. motor; 5. clamping assembly; 51. mounting cylinder; 511. plug-in slot; 52. fixing member; 521. fixing block; 522. first spring; 6. unlocking member; 61. unlocking rod; 62. unlocking plate; 63. fixing rod; 64. hydraulic cylinder; 7. fixing column; 71. sliding plate; 72. second spring. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application embodiment discloses a bag dust collector. Figure 1 and Figure 2 A bag dust collector includes a body 1, a maintenance opening 11 is provided on one side of the body 1 in the vertical direction, and a maintenance plate 12 for blocking the maintenance opening 11 is installed on the side of the body 1 close to the maintenance opening 11. A horizontal mounting plate 2 is fixedly connected inside the body, and a plurality of vertical cages 21 are fixedly connected to the lower side of the mounting plate 2. In the embodiment of the present application, nine cages are provided, and nine through holes 22 adapted to the cages 21 are provided on the mounting plate 2.

[0033] A horizontal moving plate 3 is provided at the lower side of the mounting plate 2, and the moving plate 3 is slidably connected to the inner wall of the body 1, and a lifting assembly 4 for driving the moving plate 3 to slide is provided on the body 1. A cloth bag 31 adapted to the cage 21 is provided at the lower side of the moving plate 3, and the cloth bag 31 opens upwards and a clamping assembly 5 fixedly connected to the moving plate 3 is provided at the upper end of the cloth bag 31.

[0034] Reference Figure 2 and Figure 3 The clamping assembly 5 includes a mounting tube 51 fixedly connected to the upper end of the cloth bag 31, a mounting hole 32 adapted to the mounting tube 51 is opened on the movable plate 3, the upper end of the mounting tube 51 passes through the corresponding mounting hole 32, and a fixing piece 52 clamped to the movable plate 3 is provided at the upper end of the mounting tube 51.

[0035] Reference Figure 2 The lifting assembly 4 includes vertical screws 41 symmetrically arranged on both sides of the moving plate 3. The upper end of the screw 41 passes through the mounting plate 2 and is rotatably connected to the mounting plate 2. The lower end of the screw 41 is rotatably connected to the inner wall of the body 1. The two sides of the moving plate 3 are sleeved on the screw 41 and are threadedly connected to the screw 41. A rotating member 42 for driving the screw 41 to rotate is provided on the upper side of the mounting plate 2.

[0036] The driving fixing part 52 unlocks the fixation of the mounting cylinder 51 and the movable plate 3. At this time, the cloth bag 31 that needs to be replaced is separated from the movable plate 3 under the action of its own gravity. The rotating part 42 drives the lead screw 41 to rotate at the same time and drives the movable plate 3 to descend. At this time, the upper end of the mounting cylinder 51 is passed through the mounting hole 32. The fixing part 52 at the upper end of the mounting cylinder 51 fixes the mounting cylinder 51 and the movable plate 3. The rotating part 42 drives the lead screw 41 to drive the movable plate 3 to rise until it contacts the side wall of the mounting plate 2. At this time, the cloth bag 31 is sleeved on the corresponding cage frame 21, and the replacement of the cloth bag 31 is completed.

[0037] Reference Figure 2 and Figure 3 The fixing member 52 includes a plurality of fixing blocks 521 symmetrically arranged along the axis of the outer wall of the upper end of the mounting tube 51. In the embodiment of the present application, four fixing blocks are arranged. The upper end of the mounting tube 51 is provided with a plug-in groove 511 adapted to the fixing block 521. One end of the fixing block 521 close to the rotation axis of the mounting tube 51 is plugged into the corresponding plug-in groove 511 and is slidably connected to the side wall of the mounting tube 51, and the fixing block 521 can completely enter the corresponding plug-in groove 511.

[0038] The plug-in slot 511 is provided with a first spring 522, one end of which is fixedly connected to the side wall of the mounting tube 51 and faces the fixed block 521. The other end of the first spring 522 is fixedly connected to the corresponding fixed block 521, and the end of the fixed block 521 away from the plug-in slot 511 is arranged as an inclined surface inclined upward and toward the side close to the rotation axis of the mounting tube 51.

[0039] Drive the fixed block 521 to move toward the side wall of the mounting cylinder 51 until it completely enters the mounting cylinder 51. The mounting cylinder 51 falls under the action of its own gravity and the gravity of the cloth bag 31. When installing the cloth bag 31, the upper end of the mounting cylinder 51 is inserted into the mounting hole 32. At this time, the inclined surface on the upper side of the fixed block 521 abuts against the side wall of the movable plate 3. Continue to move the mounting cylinder 51. At this time, the fixed block 521 completely enters the mounting cylinder 51 under the squeezing of the side wall of the movable plate 3 until the mounting cylinder 51 passes through the mounting hole 32. The first spring 522 restores its deformation and pushes the fixed block 521 to move until the upper side of the fixed block 521 abuts against the upper side of the movable plate 3, and the cloth bag 31 is installed on the movable plate 3 through the mounting cylinder 51.

[0040] Reference Figure 1 and Figure 2 The rotating member 42 includes two horizontal first bevel gears 421 respectively sleeved and fixedly connected to the upper end of the lead screw 41, and a vertical second bevel gear 422 is meshed on the side of the first bevel gears 421 away from each other. A connecting rod 423 of the same level is passed through and fixedly connected to the axis of the second bevel gear 422, and both ends of the connecting rod 423 pass through the side wall of the body 1 and are rotatably connected to the side wall of the body 1, and a motor 424 fixedly connected to the outer side wall of the body 1 is installed at one end of the connecting rod 423.

[0041] The motor 424 drives the connecting rod 423 to rotate. At this time, the second bevel gear 422 rotates with the connecting rod 423 and drives the first bevel gear 421 to rotate. The lead screw 41 rotates with the first bevel gear 421 and drives the movable plate 3 to move in the length direction of the lead screw 41, which is convenient for installing the cloth bag 31.

[0042] Reference Figure 2 and Figure 3 , a mounting groove 23 adapted to the fixed block 521 is provided on the lower side of the mounting plate 2, and a positioning groove 24 adapted to the mounting tube 51 is provided on the lower side of the mounting plate 2. When the mounting tube 51 is engaged with the movable plate 3 through the fixed block 521, the fixed block 521 is inserted into the corresponding mounting groove 23, the upper end of the mounting tube 51 is inserted into the positioning groove 24, and an unlocking member 6 for driving the mounting tube 51 to release the fixing of the movable plate 3 is provided on the mounting plate 2. The unlocking member 6 includes a plurality of vertical unlocking rods 61 adapted to the fixed block 521, and the lower ends of the unlocking rods 61 all pass through the mounting plate 2 and are slidably connected to the mounting plate 2.

[0043] The upper ends of the unlocking rods 61 corresponding to the same mounting tube 51 are fixedly connected to the same unlocking plate 62, and one side of the unlocking plate 62 is fixedly connected to a horizontal fixing rod 63. A vertical hydraulic cylinder 64 fixedly connected to the mounting plate 2 is provided on the lower side of the fixing rod 63, and the telescopic rod of the hydraulic cylinder 64 faces the fixing rod 63 and is fixedly connected to the fixing rod 63.

[0044] The telescopic rod of the hydraulic cylinder 64 contracts and drives the unlocking plate 62 through the fixed rod 63 to drive the unlocking rod 61 to move downward, and squeeze the inclined surface of the fixed block 521, and continue to drive the unlocking rod 61 to move downward until the fixed block 521 is pushed along the side of the fixed block 521 and completely enters the mounting tube 51, so as to facilitate the removal of the cloth bag 31. When the cloth bag 31 falls, the telescopic rod of the hydraulic cylinder 64 extends and drives the unlocking plate 62 through the fixed rod 63 to drive the unlocking rod 61 to reset, thereby completing the removal of the cloth bag 31.

[0045] Reference Figure 3 The upper end of the cage 21 is fixedly connected with a vertical fixed column 7, and a horizontal sliding plate 71 is provided on the lower side of the fixed column 7. A second spring 72 is fixedly connected to the side of the sliding plate 71 close to the fixed column 7. The end of the second spring 72 away from the sliding plate 71 is fixedly connected to the upper side wall of the cage 21, and a control component for driving the hydraulic cylinder 64 to retract is provided on the side of the fixed column 7 close to the sliding plate 71.

[0046] The control part includes a pressure sensor (not shown in the figure) installed on the side of the fixed column 7 close to the sliding plate 71. The pressure sensors are all wirelessly connected to the same control host, and the control host is wirelessly connected to the hydraulic cylinder 64.

[0047] When the cloth bag 31 is working normally, the wind enters the cage 21 through the cloth bag 31. At this time, the wind entering the cage 21 blows the sliding plate 71 to move toward the direction close to the fixed column 7 and squeezes the pressure sensor. At this time, the control host receives the electrical signal, and the second spring 72 is compressed. After the work is completed, the second spring 72 recovers its deformation and drives the sliding plate 71 to reset; when the cloth bag 31 is difficult to filter, the wind is difficult to enter the cage 21. At this time, the sliding plate 71 does not move, and the pressure sensor does not transmit an electrical signal. When the work stops, the control host controls the hydraulic cylinder 64 to contract and unlock the cloth bag 31 that is difficult to work, thereby completing the disassembly of the cloth bag 31.

[0048] The implementation principle of a bag dust collector in an embodiment of the present application is as follows: the hydraulic cylinder 64 drives the unlocking rod 61 to unlock the fixation of the mounting cylinder 51 and the movable plate 3, and the bag 31 that needs to be replaced is separated from the movable plate 3 under its own gravity, and the motor 424 drives the screw 41 to rotate at the same time and drives the movable plate 3 to descend. At this time, the upper end of the mounting cylinder 51 is passed through the mounting hole 32, and the fixing block 521 at the upper end of the mounting cylinder 51 fixes the mounting cylinder 51 and the movable plate 3, and the driving screw 41 drives the movable plate 3 to rise until it contacts the side wall of the mounting plate 2. At this time, the bag 31 is sleeved on the corresponding cage frame 21, and the replacement of the bag 31 is completed.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bag dust collector, characterized in that: The invention comprises a main body (1), wherein a plurality of cloth bags (31) are arranged along the height direction of the main body (1) inside the main body (1), a movable plate (3) perpendicular to the height direction of the main body (1) is arranged inside the main body (1), a clamping assembly (5) passing through the movable plate (3) and fixedly connected to the movable plate (3) is arranged at the upper end of the cloth bag (31), a lifting assembly (4) is arranged inside the main body (1) for driving the movable plate (3) to move along the height direction of the main body (1), and an unlocking member (6) is arranged on the main body (1) for driving the cloth bag (31) to separate from the movable plate (3).

2. A bag dust collector according to claim 1, characterized in that: The clamping assembly (5) comprises a mounting tube (51) fixedly connected to the upper end of the cloth bag (31); a plurality of mounting holes (32) adapted to the mounting tube (51) are provided on the movable plate (3); the upper end of the mounting tube (51) passes through the mounting holes (32); and a fixing piece (52) fixed to the movable plate (3) is provided at the upper end of the mounting tube (51).

3. A bag dust collector according to claim 2, characterized in that: The fixing member (52) comprises a plurality of fixing blocks (521) which are arranged along the circumference of the mounting tube (51), are inserted into the mounting tube (51), and are slidably connected to the mounting tube (51); one end of each fixing block (521) inserted into the mounting tube (51) is fixedly connected to a first spring (522); the first spring (522) is fixedly connected to a side wall of the mounting tube (51); and the upper side of one end of each fixing block (521) away from the mounting tube (51) is arranged as an inclined surface which is away from the mounting tube (51) and inclined downward.

4. A bag dust collector according to claim 3, characterized in that: The upper side of the movable plate (3) is provided with a mounting plate (2) fixedly connected to the inner side wall of the body (1); the lower side of the mounting plate (2) is provided with a cage (21) inserted into the cloth bag (31); the mounting plate (2) is provided with a through hole (22) adapted to the cage (21); the unlocking member (6) comprises an unlocking rod (61) passing through and slidably connected to the mounting plate (2) and corresponding to the fixed block (521); the upper ends of the unlocking rods (61) corresponding to the same cloth bag (31) are all fixedly connected to the same unlocking plate (62); and the lower side of the unlocking plate (62) is provided with a hydraulic cylinder (64) fixedly connected to the mounting plate (2).

5. A bag dust collector according to claim 4, characterized in that: The lifting assembly (4) comprises two lead screws (41) symmetrically arranged at both ends of the mounting plate (2) and parallel to the height direction of the body (1); the upper end of the lead screw (41) passes through and is rotatably connected to the mounting plate (2), and the other end is rotatably connected to the inner wall of the body (1); and a rotating member (42) for driving the lead screw (41) to rotate is provided on the body (1).

6. A bag dust collector according to claim 5, characterized in that: The rotating member (42) comprises a first bevel gear (421) fixedly connected to the upper end of the lead screw (41); a second bevel gear (422) is meshed with each other on the side of the first bevel gear (421) that is away from each other; a connecting rod (423) is passed through the axis of the second bevel gear (422) and is fixedly connected thereto; a motor (424) fixedly connected to the body (1) is mounted on one end of the connecting rod (423).

7. A bag dust collector according to claim 6, characterized in that: A fixed column (7) is fixedly connected to the upper end of the cage frame (21), a sliding plate (71) is provided at the lower side of the fixed column (7), a second spring (72) is fixedly connected between the sliding plate (71) and the fixed column (7), and a control member for driving the hydraulic cylinder (64) to shorten is provided on the side of the fixed column (7) close to the sliding plate (71).

8. A bag dust collector according to claim 7, characterized in that: The control member comprises a pressure sensor mounted on the fixed column (7), the sliding plate (71) is capable of contacting and pressing the pressure sensor, the pressure sensor is wirelessly connected to a control host, and the control host is wirelessly connected to the hydraulic cylinder (64).

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