Bag replacing and cleaning device based on bag-type dust collector
By designing an automated filter bag replacement and cleaning device, which utilizes a combination of electric cylinders and springs, automated cleaning and rapid disassembly of the filter screen are achieved, solving the problems of time-consuming, labor-intensive, and resource-wasting processes in existing technologies and improving cleaning efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG XINGYAN INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
Existing baghouse dust collectors require shutdown and bag removal during cleaning, which is time-consuming and labor-intensive. Pulse jet cleaning has limited effectiveness for mild clogging, and traditional rigid connection devices are prone to loosening or breaking due to vibration. They are difficult to meet the cleaning needs of different degrees of clogging, resulting in resource waste.
A filter bag replacement and cleaning device was designed, which includes an installation mechanism, a cleaning mechanism, and a connection mechanism. The combination of an electric cylinder and a spring enables automated cleaning and quick disassembly of the filter screen. The electric cylinder pushes the fixing block and cleaning brush to clean minor blockages, while the triangular block and spring work together to achieve quick disassembly for severe blockages.
It enables automated cleaning and quick disassembly of the filter, reducing manual operation time, improving cleaning efficiency, avoiding resource waste, and adapting to cleaning needs with different degrees of clogging.
Smart Images

Figure CN224236364U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cleaning devices, specifically relating to a bag replacement and cleaning device based on a bag filter dust collector. Background Technology
[0002] The bag replacement and cleaning device is mainly used for the maintenance of the filter bags in baghouse dust collectors. Its core operations include the removal of old filter bags, the installation of new filter bags, and the cleaning of old filter bags.
[0003] Existing technologies require manual cleaning of the equipment, which necessitates stopping the machine and disassembling the cloth bag, which is time-consuming and labor-intensive. Pulse jet cleaning has limited effectiveness for mild blockages and easily leaves dust residue. Traditional rigid connection devices are prone to loosening or breaking due to vibration during long-term operation. A single cleaning method is difficult to meet the needs of different levels of blockage, resulting in wasted resources. Utility Model Content
[0004] To overcome the problems of existing technologies where manual cleaning requires stopping the machine to disassemble the filter bags, which is time-consuming and labor-intensive; pulse jet cleaning has limited effectiveness for mild clogging and easily leaves dust residue; traditional rigid connection devices are prone to loosening or breaking due to vibration during long-term operation; and a single cleaning method is difficult to meet the needs of different clogging levels, resulting in resource waste, a filter bag replacement and cleaning device based on bag dust collectors is proposed.
[0005] The technical solution of this utility model is as follows: a bag replacement and cleaning device based on a bag dust collector, including a bag body and an installation mechanism; the installation mechanism is provided on the inner wall of the bag body, and a cleaning mechanism is provided at the lower end of the installation mechanism, and a connecting mechanism is provided inside the cleaning mechanism; the installation mechanism includes a slot, a first electric cylinder, a first spring, a first limiting block, a triangular block, a locking block, and a filter screen; four slots are opened on the circumference of the inner wall of the bag body, the first electric cylinder is fixedly connected to the inner wall of the slot, one end of the first spring is fixedly connected to both sides of the slot, the other end of the first spring is fixedly connected to the first limiting block, the two first limiting blocks are fixedly connected to the triangular block at their close ends, the locking block is slidably installed on the inner wall of the slot, and the filter screen is fixedly connected to all four locking blocks.
[0006] Furthermore, the cleaning mechanism includes a support block, a clamping block, a second groove, a second electric cylinder, and a fixing block; clamping blocks are fixed to both sides of the bag body, and a support block is fixed to the lower end of the clamping blocks. A second groove is opened at the upper end of the support block, and a second electric cylinder is fixed to the inner wall of the second groove. A fixing block is fixed to the output end of the second electric cylinder.
[0007] Furthermore, the cleaning mechanism also includes a fourth tank, a motor, a fixed column, and cleaning brushes; the upper end of the fixed block has a fourth tank, the inner wall of the fourth tank is fixedly connected to a motor, the upper end of the motor is fixedly connected to a fixed column, and the side wall of the fixed column is fixedly connected to multiple cleaning brushes.
[0008] Furthermore, the connecting mechanism includes a fifth groove, a stop block, a second limiting block, and a second spring; the lower end of the bag body has a fifth groove, the inner wall of the fifth groove is rotatably mounted with a stop block, the inner walls of the second groove are fixedly connected to both sides of the second groove, the upper end of the second limiting block is fixedly connected to one end of the second spring, and the other end of the second spring is fixedly connected to the lower end of the stop block.
[0009] Furthermore, the end of the card block furthest from the filter screen is attached to the output end of the first electric cylinder, both ends of the card block are attached to the sidewalls of the slot, and the sidewalls of the card block are attached to the sidewalls of the two triangular blocks.
[0010] Furthermore, the connecting mechanism is located on one side of the filter screen, and after movement, the side wall of the cleaning brush fits into the side wall of the filter screen.
[0011] Furthermore, the fifth slot corresponds one-to-one with the fourth slot, the output end of the electric cylinder retracts into the cylinder body, and the locking block can slide normally on the inner wall of the slot.
[0012] The beneficial effects of this utility model are as follows: When the filter screen is lightly clogged, the second electric cylinder can be activated. The output end of the second electric cylinder pushes the fixed block upward. When the second electric cylinder pushes the fixed column upward, the upper end of the fixed column pushes the stop block. The stop block is rotatably mounted at one end of the fifth groove, so the stop block will rotate along one end of the fifth groove. Since the lower end of the stop block is in contact with the upper end of the second spring, the upward rotation of the stop block will pull the second spring to stretch. When the fixed column extends to one end of the filter screen, the motor is activated. The motor rotates the fixed column, and the fixed column rotates the cleaning brush on the side wall. When cleaning is complete, the second electric cylinder can be activated to stop the cleaning. The output end of the second electric cylinder retracts into the cylinder body. The second electric cylinder drives the cleaning brush to move into the interior of the second groove. The second spring pulls the stop block back to the side wall of the bag body to achieve the purpose of cleaning the dust on the surface of the filter screen. When the filter screen is severely clogged, the first electric cylinder can be opened. The first electric cylinder pushes the locking block, which squeezes the triangular block. When the triangular block is squeezed, it will squeeze the first spring. When the triangular block retracts into the first spring, the locking block can pass through. When the locking block is pushed away from the interior of the groove, the first spring pushes the first limit block and the triangular block, which can realize the quick disassembly of the filter screen. Attached Figure Description
[0013] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;
[0014] Figure 2 The diagram shown is a cross-sectional three-dimensional structural schematic of the installation mechanism of this utility model.
[0015] Figure 3 The diagram shown is a partially enlarged cross-sectional perspective view of point A of this utility model.
[0016] Figure 4The diagram shown is a first cross-sectional perspective view of the cleaning mechanism of this utility model.
[0017] Figure 5 The diagram shown is a second cross-sectional perspective view of the cleaning mechanism of this utility model.
[0018] Figure 6 The diagram shown is a cross-sectional perspective view of the connection mechanism of this utility model.
[0019] The labels in the attached diagram are as follows: 1. Installation mechanism; 11. Bag body; 12. Groove; 13. First electric cylinder; 14. First spring; 15. First limiting block; 16. Triangular block; 17. Locking block; 18. Filter screen; 2. Cleaning mechanism; 21. Support block; 22. Clamping block; 23. Second groove; 24. Second electric cylinder; 25. Fixing block; 26. Fourth groove; 27. Motor; 28. Fixing column; 29. Cleaning brush; 3. Connecting mechanism; 31. Fifth groove; 32. Stop block; 33. Second limiting block; 34. Second spring. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-6 This utility model provides an embodiment of a bag replacement and cleaning device based on a bag dust collector, including a bag body 11 and an installation mechanism 1; the installation mechanism 1 is provided on the inner wall of the bag body 11, and a cleaning mechanism 2 is provided at the lower end of the installation mechanism 1, with a connecting mechanism 3 provided inside the cleaning mechanism 2; the installation mechanism 1 includes slots 12, a first electric cylinder 13, a first spring 14, a first limiting block 15, a triangular block 16, a locking block 17, and a filter screen 18; four slots 12 are opened circumferentially on the inner wall of the bag body 11, the first electric cylinder 13 is fixedly connected to the inner wall of the slots 12, one end of the first spring 14 is fixedly connected to both sides of the slots 12, the other end of the first spring 14 is fixedly connected to the first limiting block 15, the two first limiting blocks 15 are both fixedly connected to the ends that are close to each other, the locking block 17 is slidably installed on the inner wall of the slots 12, and the filter screen 18 is fixedly connected to all four locking blocks 17.
[0022] In use, when the filter screen 18 is lightly clogged, the second electric cylinder 24 can be opened. The output end of the second electric cylinder 24 pushes the fixed block 25 upward. When the second electric cylinder 24 pushes the fixed column 28 upward, the upper end of the fixed column 28 pushes the stop block 32. The stop block 32 is rotatably mounted at one end of the fifth groove 31, so the stop block 32 will rotate along one end of the fifth groove 31. Since the lower end of the stop block 32 is in contact with the upper end of the second spring 34, the upward rotation of the stop block 32 will pull the second spring 34 to stretch. When the fixed column 28 extends to one end of the filter screen 18, the motor 27 is turned on. The motor 27 rotates the fixed column 28, and the fixed column 28 rotates the cleaning brush 29 on the side wall. When cleaning is completed, the second electric cylinder 24 is turned on. The output end of the moving cylinder 24 retracts into the cylinder body. The second electric cylinder 24 drives the cleaning brush 29 to move into the interior of the second groove 23. The second spring 34 pulls the stop block 32 back to the side wall of the bag body 11 to achieve the purpose of cleaning the dust on the surface of the filter screen 18. When the filter screen 18 is severely clogged, the first electric cylinder 13 can be opened. The first electric cylinder 13 pushes the locking block 17, and the locking block 17 squeezes the triangular block 16. When the triangular block 16 is squeezed, it will squeeze the first spring 14. When the triangular block 16 retracts into the first spring 14, the locking block 17 can pass through. When the locking block 17 is pushed away from the interior of the groove 12, the first spring 14 pushes the first limit block 15 and the triangular block 16, which can realize the quick disassembly of the filter screen 18.
[0023] Please see Figure 4 In this embodiment, the cleaning mechanism 2 includes a support block 21, a clamping block 22, a second groove 23, a second electric cylinder 24, and a fixing block 25. The clamping blocks 22 are fixed to both sides of the bag body 11, and the support block 21 is fixed to the lower end of the clamping blocks 22. The second groove 23 is opened at the upper end of the support block 21. The second electric cylinder 24 is fixed to the inner wall of the second groove 23. The fixing block 25 is fixed to the output end of the second electric cylinder 24. The fixing block 25 is moved upward by the second electric cylinder 24.
[0024] Please see Figure 5 In this embodiment, the cleaning mechanism 2 also includes a fourth groove 26, a motor 27, a fixing column 28, and cleaning brushes 29; the upper end of the fixing block 25 is provided with a fourth groove 26, the inner wall of the fourth groove 26 is fixedly connected to a motor 27, the upper end of the motor 27 is fixedly connected to a fixing column 28, and the side wall of the fixing column 28 is fixedly connected to multiple cleaning brushes 29. The cleaning brushes 29 can be used to clean the filter screen 18 that is not severely clogged.
[0025] Please see Figure 6In this embodiment, the connecting mechanism 3 includes a fifth groove 31, a stop block 32, a second limiting block 33, and a second spring 34. The lower end of the bag body 11 is provided with a fifth groove 31. The inner wall of the fifth groove 31 is rotatably mounted with a stop block 32. The inner walls of the second groove 23 are fixedly connected to both sides of the second limiting block 33. The upper end of the second limiting block 33 is fixedly connected to one end of the second spring 34, and the other end of the second spring 34 is fixedly connected to the lower end of the stop block 32. The stop block 32 can be restored by using the second spring 34, and the stop block 32 blocks the fifth groove 31.
[0026] Please see Figure 2 and Figure 3 In this embodiment, the end of the card block 17 away from the filter screen 18 is attached to the output end of the first electric cylinder 13, the two ends of the card block 17 are attached to the side wall of the slot 12, and the side wall of the card block 17 is attached to the side wall of the two triangular blocks 16. The first electric cylinder 13 pushes the card block 17, which can push the card block 17 away from the inside of the slot 12.
[0027] Please see Figure 5 In this embodiment, the connecting mechanism 3 is located on one side of the filter screen 18. After it is moved, the side wall of the cleaning brush 29 is attached to the side wall of the filter screen 18, and the cleaning brush 29 cleans the surface of the filter screen 18.
[0028] Please see Figure 6 In this embodiment, the fifth groove 31 corresponds one-to-one with the fourth groove 26, the output end of the electric cylinder 13 retracts into the cylinder body, and the locking block 17 can slide normally on the inner wall of the slot 12, which facilitates the fixed connection of the device.
[0029] Working principle: When the filter screen 18 is lightly clogged, the second electric cylinder 24 can be opened. The output end of the second electric cylinder 24 pushes the fixed block 25 upward. When the second electric cylinder 24 pushes the fixed column 28 upward, the upper end of the fixed column 28 pushes the stop block 32. The stop block 32 is rotatably mounted at one end of the fifth groove 31, so the stop block 32 will rotate along one end of the fifth groove 31. Since the lower end of the stop block 32 is in contact with the upper end of the second spring 34, the upward rotation of the stop block 32 will pull the second spring 34 to stretch. When the fixed column 28 extends to one end of the filter screen 18, the motor 27 is opened. The motor 27 rotates the fixed column 28, and the fixed column 28 rotates the cleaning brush 29 on the side wall. When cleaning is completed, the second electric cylinder 24 is opened, and the second electric cylinder 25 is activated. The output end of the moving cylinder 24 retracts into the cylinder body. The second electric cylinder 24 drives the cleaning brush 29 to move into the interior of the second groove 23. The second spring 34 pulls the stop block 32 back to the side wall of the bag body 11 to achieve the purpose of cleaning the dust on the surface of the filter screen 18. When the filter screen 18 is severely clogged, the first electric cylinder 13 can be opened. The first electric cylinder 13 pushes the locking block 17, and the locking block 17 squeezes the triangular block 16. When the triangular block 16 is squeezed, it will squeeze the first spring 14. When the triangular block 16 retracts into the first spring 14, the locking block 17 can pass through. When the locking block 17 is pushed away from the interior of the groove 12, the first spring 14 pushes the first limit block 15 and the triangular block 16, which can realize the quick disassembly of the filter screen 18.
Claims
1. A bag replacement and cleaning device based on a bag filter dust collector, characterized in that, It includes a bag body (11) and an installation mechanism (1); the inner wall of the bag body (11) is provided with the installation mechanism (1), the lower end of the installation mechanism (1) is provided with a cleaning mechanism (2), and the interior of the cleaning mechanism (2) is provided with a connecting mechanism (3); the installation mechanism (1) includes a slot (12), a first electric cylinder (13), a first spring (14), a first limiting block (15), a triangular block (16), a locking block (17), and a filter screen (18); the bag body (11) The inner wall of the device has four slots (12) on its circumference. A first electric cylinder (13) is fixed to the inner wall of the slot (12). One end of a first spring (14) is fixed to both sides of the slot (12). A first limiting block (15) is fixed to the other end of the first spring (14). A triangular block (16) is fixed to the end of the two first limiting blocks (15) that are close to each other. A locking block (17) is slidably installed on the inner wall of the slot (12). A filter screen (18) is fixed together by the four locking blocks (17).
2. The bag replacement and cleaning device based on a bag filter dust collector according to claim 1, characterized in that, The cleaning mechanism (2) includes a support block (21), a clamping block (22), a second groove (23), a second electric cylinder (24), and a fixing block (25); the clamping blocks (22) are fixed to both sides of the bag body (11), the lower ends of the clamping blocks (22) are fixed to the support block (21), the upper end of the support block (21) is provided with a second groove (23), the inner wall of the second groove (23) is fixed to the second electric cylinder (24), and the output end of the second electric cylinder (24) is fixed to the fixing block (25).
3. The bag replacement and cleaning device based on a bag filter dust collector according to claim 2, characterized in that, The cleaning mechanism (2) also includes a fourth tank (26), a motor (27), a fixed column (28), and a cleaning brush (29); the upper end of the fixed block (25) is provided with a fourth tank (26), the inner wall of the fourth tank (26) is fixedly connected to a motor (27), the upper end of the motor (27) is fixedly connected to a fixed column (28), and the side wall of the fixed column (28) is fixedly connected to multiple cleaning brushes (29).
4. The bag replacement and cleaning device based on a bag filter dust collector according to claim 3, characterized in that, The connecting mechanism (3) includes a fifth groove (31), a stop (32), a second limiting block (33), and a second spring (34); the lower end of the bag body (11) is provided with a fifth groove (31), the inner wall of the fifth groove (31) is rotatably mounted with a stop (32), the inner walls of the second groove (23) are fixedly connected to both sides of the second limiting block (33), the upper end of the second limiting block (33) is fixedly connected to one end of the second spring (34), and the other end of the second spring (34) is fixedly connected to the lower end of the stop (32).
5. The bag replacement and cleaning device based on a bag filter dust collector according to claim 1, characterized in that, The end of the card block (17) away from the filter screen (18) is in contact with the output end of the first electric cylinder (13), the two ends of the card block (17) are in contact with the side wall of the slot (12), and the side wall of the card block (17) is in contact with the side wall of the two triangular blocks (16).
6. The bag replacement and cleaning device based on a bag filter dust collector according to claim 3, characterized in that, The connecting mechanism (3) is located on one side of the filter screen (18), and after it is moved, the side wall of the cleaning brush (29) fits against the side wall of the filter screen (18).
7. The bag replacement and cleaning device based on a bag filter dust collector according to claim 3, characterized in that, The fifth groove (31) corresponds one-to-one with the fourth groove (26). The output end of the electric cylinder (13) retracts into the cylinder body, and the locking block (17) can slide normally on the inner wall of the groove (12).