A bag-type dust collector
By designing structures such as fixing rings, baffles, and limiting columns, the problem of time-consuming and laborious filter bag replacement in existing baghouse dust collectors has been solved, enabling convenient installation and removal of filter bags and improving replacement efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN HONGMAO HVAC MASCH EQUIP CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-14
Smart Images

Figure CN224485305U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of bag dust collectors, and in particular relates to a bag dust collector that is easy to disassemble. Background Technology
[0002] A baghouse dust collector is a high-efficiency dry dust collection device that uses fiber filter bags to capture dust particles in dust-laden gas. When the dust-laden gas passes through the filter bags, the dust is trapped outside the bags, while clean air is discharged through the filter bags. Over time, the dust layer on the surface of the filter bags will gradually thicken. At this point, the accumulated dust on the filter bags can be removed by vibration or reverse airflow to restore its dust collection efficiency. Baghouse dust collectors have the advantages of simple structure, stable operation, and strong adaptability, and are widely used in industrial dust control and air purification.
[0003] The problem with existing technology is that when replacing filter bags in existing baghouse dust collectors, operators need to first remove the frame one by one, and then manually press each bag opening to detach it from the placement hole before the old filter bag can be removed and the new filter bag can be installed. This process requires repeated pressing operations on multiple filter bags, which is time-consuming and labor-intensive, affecting the overall replacement efficiency. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a bag filter that is easy to disassemble. It has the advantage of being easy to install and remove filter bags, and solves the problem that when replacing filter bags in existing bag filters, operators must first remove the frame one by one, and then manually press each bag opening to detach it from the placement hole before they can take out the old filter bag and install the new filter bag. This process requires repeated pressing of multiple filter bags, which is time-consuming and labor-intensive, affecting the overall replacement efficiency.
[0005] This utility model is implemented as follows: a bag filter that is easy to disassemble includes a bag filter body, multiple placement holes, and multiple filter bags. The filter bags are disposed in the inner cavity of the placement holes, with their tops passing through the placement holes and extending to the outside of the placement holes. A fixing ring is fixedly connected to the top of the filter bags. A first baffle and a second baffle are respectively provided on the left and right sides of the fixing ring. Limiting posts are fixedly connected to the front and rear sides of the inner top of the bag filter body. A fixing box is fixedly connected to the middle of the top of the first baffle. A snap-fit connector is fixedly connected to the middle of the top of the second baffle. Fixing grooves are provided on the front and rear sides of the snap-fit connector. A fixing device that works with the fixing grooves is provided at the bottom of the inner cavity of the fixing box. A control device that works with the fixing device is provided at the top of the inner cavity of the fixing box.
[0006] In a preferred embodiment of this invention, the front and rear sides of the first and second baffles are both sleeved on the surface of the limiting post, and the left side of the snap-fit connector penetrates the fixed box and extends into the inner cavity of the fixed box.
[0007] In a preferred embodiment of this utility model, the sides of the first baffle and the second baffle that are close to the fixing ring both pass through the inner side of the fixing ring and are in contact with the inner side of the fixing ring. The left side of the first baffle is provided with multiple limiting grooves, and the right side of the second baffle is fixedly connected with multiple limiting blocks. The left side of the limiting blocks passes through the limiting grooves and extends into the inner cavity of the limiting grooves to contact the inside of the limiting grooves.
[0008] As a preferred embodiment of this utility model, the fixing device includes two sliding columns, each with a spring sleeved on its front and rear sides, and a fixing block provided on the opposite side of each of the two springs. A compression hole is provided on the left side of the top of the fixing block.
[0009] In a preferred embodiment of this invention, the control device includes a control board, with pressing columns provided on the front and rear sides of the bottom of the control board, and support columns provided on the front and rear sides of the left side of the control board, with a toggle plate provided on the left side of the support columns.
[0010] In a preferred embodiment of this invention, the front and rear sides of the sliding column are fixedly connected to the inner wall of the fixed housing, the front and rear sides of the spring are fixedly connected to the inner wall of the fixed housing and the fixing block, respectively, the fixing block is sleeved on the surface of the sliding column, and the side of the fixing block near the fixing groove passes through the fixing groove and extends into the inner cavity of the fixing groove to contact the inner wall of the fixing groove.
[0011] In a preferred embodiment of this invention, the top of the extrusion column is fixedly connected to the control plate, the bottom of the extrusion column passes through the extrusion hole and extends into the inner cavity of the extrusion hole to contact the inner wall of the extrusion hole, the right side of the support column is fixedly connected to the control plate, and the left side of the support column passes through the fixed housing and extends to the outside of the fixed housing to be fixedly connected to the actuating plate.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. This utility model solves the problem of existing baghouse dust collectors where, when replacing filter bags, operators must first remove the filter frames one by one, and then manually press each bag opening to detach it from the placement hole before the old filter bag can be removed and the new filter bag installed. This process requires repeated pressing of multiple filter bags, which is time-consuming and labor-intensive, affecting the overall replacement efficiency.
[0014] 2. This utility model can limit the first baffle and the second baffle by setting a limiting post, can connect and fix the first baffle and the second baffle by setting a snap joint, and can protect the fixing device and the control device by setting a fixing box.
[0015] 3. This utility model can fix the fixing ring by setting the first baffle and the second baffle, and fix the filter bag by setting the fixing ring, which makes it convenient for operators to install the filter bag. The first baffle and the second baffle can be limited by setting the limiting block and the limiting groove.
[0016] 4. This utility model, by setting a fixing device, can fix the snap-fit connector, making it convenient for operators to fix the first baffle and the second baffle.
[0017] 5. By setting up a control device, this utility model can control the fixing device, making it convenient for operators to open the first and second baffles and disassemble the filter bag.
[0018] 6. This utility model can support and limit the spring and the fixed block by setting a sliding column. By setting a spring, the fixed block can be pushed to move in the opposite direction and reset by the rebound force released after compression. By setting a fixed block, the snap-fit connector can be fixed. By setting a compression hole, the compression column can compress the fixed block during the movement of the compression hole cavity, push the fixed block to move, and compress the spring.
[0019] 7. This utility model, by setting a control plate, can drive the extrusion column to move within the extrusion hole. By setting the extrusion column, it can extrude the fixing block and push the fixing block to move during the movement within the extrusion hole. By setting a support column, it can support and limit the control plate. By setting a toggle plate, it can be turned by the operator to drive the support column and the control plate to move synchronously, controlling the fixing block to open or close. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure provided in an embodiment of the present utility model;
[0021] Figure 2 This is a three-dimensional structural diagram of the placement hole provided in an embodiment of the present utility model;
[0022] Figure 3 This is a three-dimensional structural diagram of the filter bag and fixing ring provided in this embodiment of the utility model;
[0023] Figure 4 This is a three-dimensional structural diagram of the first and second baffles provided in an embodiment of the present utility model;
[0024] Figure 5 This is provided by the embodiment of the present utility model. Figure 4 Enlarged view at point A;
[0025] Figure 6This is a three-dimensional structural diagram of the fixing device and control device provided in the embodiment of this utility model.
[0026] In the diagram: 1. Baghouse dust collector body; 2. Placement hole; 3. Filter bag; 4. Fixing ring; 5. First baffle; 6. Second baffle; 7. Limiting post; 8. Fixing box; 9. Clip connector; 10. Fixing groove; 11. Fixing device; 12. Control device; 13. Limiting groove; 14. Limiting block; 1101. Sliding post; 1102. Spring; 1103. Fixing block; 1104. Extrusion hole; 1201. Control board; 1202. Extrusion post; 1203. Support post; 1204. Actuating plate. Detailed Implementation
[0027] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.
[0028] The structure of this utility model will now be described in detail with reference to the accompanying drawings.
[0029] like Figures 1 to 6 As shown in the figure, the present invention provides a bag filter that is easy to disassemble, including a bag filter body 1, multiple placement holes 2 and multiple filter bags 3. The filter bags 3 are disposed in the inner cavity of the placement holes 2, and their tops pass through the placement holes 2 and extend to the outside of the placement holes 2. A fixing ring 4 is fixedly connected to the top of the filter bags 3. A first baffle 5 and a second baffle 6 are respectively provided on the left and right sides of the fixing ring 4. Limiting posts 7 are fixedly connected to the front and rear sides of the top inner side of the bag filter body 1. A fixing box 8 is fixedly connected to the middle of the top of the first baffle 5. A snap connector 9 is fixedly connected to the middle of the top of the second baffle 6. A fixing groove 10 is provided on the front and rear sides of the snap connector 9. A fixing device 11 that works with the fixing groove 10 is provided at the bottom of the inner cavity of the fixing box 8. A control device 12 that works with the fixing device 11 is provided at the top of the inner cavity of the fixing box.
[0030] refer to Figure 1 , Figure 2 and Figure 3 The front and rear sides of the first baffle 5 and the second baffle 6 are both sleeved on the surface of the limiting post 7. The left side of the snap connector 9 penetrates through the fixed box 8 and extends into the inner cavity of the fixed box 8.
[0031] The above scheme is adopted as follows: by setting the limiting post 7, the first baffle 5 and the second baffle 6 can be limited; by setting the snap connector 9, the first baffle 5 and the second baffle 6 can be connected and fixed; by setting the fixed box 8, the fixing device 11 and the control device 12 can be protected.
[0032] refer to Figure 3 and Figure 4The first baffle 5 and the second baffle 6 both pass through the inner side of the fixed ring 4 on the side closest to the fixed ring 4 and are in contact with the inner side of the fixed ring 4. The left side of the first baffle 5 is provided with multiple limiting grooves 13, and the right side of the second baffle 6 is fixedly connected with multiple limiting blocks 14. The left side of the limiting block 14 passes through the limiting groove 13 and extends into the inner cavity of the limiting groove 13 and is in contact with the inside of the limiting groove 13.
[0033] The above scheme is adopted: by setting the first baffle 5 and the second baffle 6, the fixing ring 4 can be fixed, the filter bag 3 can be fixed, and the operator can install the filter bag 3 conveniently. By setting the limiting block 14 and the limiting groove 13, the first baffle 5 and the second baffle 6 can be limited.
[0034] refer to Figure 6 The fixing device 11 includes two sliding columns 1101. Springs 1102 are sleeved on the front and rear sides of the two sliding columns 1101. Fixing blocks 1103 are provided on the opposite side of the two springs 1102. A compression hole 1104 is opened on the left side of the top of the fixing block 1103.
[0035] The above solution is adopted: by setting the fixing device 11, the snap-fit connector 9 can be fixed, which makes it convenient for the operator to fix the first baffle 5 and the second baffle 6.
[0036] refer to Figure 6 The control device 12 includes a control plate 1201. Extrusion columns 1202 are provided on the front and rear sides of the bottom of the control plate 1201. Support columns 1203 are provided on the front and rear sides of the left side of the control plate 1201. A toggle plate 1204 is provided on the left side of the support column 1203.
[0037] By adopting the above solution, the control device 12 can control the fixing device 11, making it convenient for operators to open the first baffle 5 and the second baffle 6 and disassemble the filter bag 3.
[0038] refer to Figure 5 and Figure 6 The front and rear sides of the sliding column 1101 are fixedly connected to the inner wall of the fixed housing 8. The front and rear sides of the spring 1102 are fixedly connected to the inner wall of the fixed housing 8 and the fixing block 1103, respectively. The fixing block 1103 is sleeved on the surface of the sliding column 1101. The side of the fixing block 1103 near the fixing groove 10 passes through the fixing groove 10 and extends into the inner cavity of the fixing groove 10 to contact the inner wall of the fixing groove 10.
[0039] The above solution is as follows: by setting the sliding column 1101, the spring 1102 and the fixing block 1103 can be supported and limited; by setting the spring 1102, the spring force released after compression can push the fixing block 1103 to move in the opposite direction and reset; by setting the fixing block 1103, the snap connector 9 can be fixed; by setting the compression hole 1104, the compression column 1202 can compress the fixing block 1103 during the movement of the compression hole 1104, push the fixing block 1103 to move, and compress the spring 1102.
[0040] refer to Figure 5 and Figure 6 The top of the extrusion column 1202 is fixedly connected to the control plate 1201. The bottom of the extrusion column 1202 passes through the extrusion hole 1104 and extends into the inner cavity of the extrusion hole 1104 to contact the inner wall of the extrusion hole 1104. The right side of the support column 1203 is fixedly connected to the control plate 1201. The left side of the support column 1203 passes through the fixed housing 8 and extends to the outside of the fixed housing 8 to be fixedly connected to the actuating plate 1204.
[0041] The above solution is as follows: By setting up a control plate 1201, the extrusion column 1202 can be moved within the cavity of the extrusion hole 1104. By setting up the extrusion column 1202, the fixing block 1103 can be extruded and pushed to move during the movement within the cavity of the extrusion hole 1104. By setting up a support column 1203, the control plate 1201 can be supported and limited. By setting up a toggle plate 1204, the operator can toggle the toggle plate 1204 to move the support column 1203 and the control plate 1201 synchronously, thereby controlling the fixing block 1103 to open or close.
[0042] The working principle of this utility model:
[0043] In use, the operator sequentially places multiple filter bags 3 into the inner cavity of the bag filter body 1 through the placement hole 2. After placement, the first baffle 5 and the second baffle 6 are pushed to move closer to each other. The first baffle 5 and the second baffle 6 will respectively drive the fixed box 8 and the snap connector 9 to move closer to each other. When the first baffle 5 and the second baffle 6 pass through the inner side of the fixed ring 4 and come into contact with the inner side of the fixed ring 4, the limiting block 14 will pass through the limiting groove 13 to limit the first baffle 5 and the second baffle 6.
[0044] Simultaneously, the snap-fit connector 9 penetrates the fixed housing 8 and enters the inner cavity of the fixed housing 8. During the process of the snap-fit connector 9 entering the inner cavity of the fixed housing 8, the inclined surface of the snap-fit connector 9 will contact the inclined surface of the fixed block 1103 and generate compression. The compression force generated at this time will push the two fixed blocks 1103 to move away from each other and compress the spring 1102. During the movement of the fixed block 1103, it will compress the compression column 1202 through the compression hole 1104. The compression force generated at this time will push the two compression columns 1202 to move to the left. The compression columns 1202 will drive the control plate 1201 to move to the left synchronously. The control plate 1201 will drive the toggle plate 1204 to move to the left synchronously through the support column 1203. When the snap-fit connector... After the head 9 enters the inner cavity of the fixed housing 8, the position of the fixing block 1103 will correspond to the position of the fixing groove 10. At this time, the fixing block 1103 will no longer be squeezed. The rebound force released after the spring 1102 is squeezed will push the two fixing blocks 1103 to move in opposite directions, so that the two fixing blocks 1103 move closer to each other and enter the inner cavity of the fixing groove 10 to fix the snap connector 9. During the reverse movement, the fixing block 1103 will squeeze the squeezing column 1202 through the squeezing hole 1104, so that the squeezing column 1202 moves to the right. The squeezing column 1202 will drive the control plate 1201 to move to the right synchronously. The control plate 1201 will drive the toggle plate 1204 to move to the right synchronously through the support column 1203 and reset, thus completing the fixation.
[0045] When the filter bag 3 needs to be disassembled, the operator moves the toggle plate 1204 to the left, causing the support column 1203 and the control plate 1201 to move to the left simultaneously. The control plate 1201 will drive the squeezing column 1202 to move in the inner cavity of the squeezing hole 1104. During the movement of the squeezing column 1202 in the inner cavity of the squeezing hole 1104, it will squeeze the fixing block 1103. The squeezing force generated at this time will push the two fixing blocks 1103 to move away from each other. After the fixing block 1103 is disengaged from the inner cavity of the fixing groove 10, the operator can move the first baffle 5 and the second baffle 6 to move away from each other. When the first baffle 5 and the second baffle 6 are moved to the appropriate position and no longer in contact with the fixing ring 4, the filter bag 3 can be taken out, and the disassembly is completed.
[0046] In summary, this easily disassembled bag filter, through the coordinated use of a fixing ring 4, a first baffle 5, a second baffle 6, a limiting post 7, a fixing housing 8, a snap connector 9, a fixing groove 10, a fixing device 11, and a control device 12, solves the problem of existing bag filters where, when replacing filter bags, operators must first remove the filter cages one by one, then manually press each bag opening to detach it from the placement hole before removing the old filter bag and installing the new one. This process requires repeated pressing of multiple filter bags, which is time-consuming and labor-intensive, affecting the overall replacement efficiency.
[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A bag filter that is easy to disassemble, comprising a bag filter body (1), a plurality of placement holes (2) and a plurality of filter bags (3), wherein the filter bags (3) are disposed in the inner cavity of the placement holes (2), and the top of the filter bags (3) passes through the placement holes (2) and extends to the outside of the placement holes (2), characterized in that: The top of the filter bag (3) is fixedly connected to a fixing ring (4). The left and right sides of the fixing ring (4) are respectively provided with a first baffle (5) and a second baffle (6). The front and rear sides of the top inner side of the bag dust collector body (1) are fixedly connected to limit posts (7). The middle of the top of the first baffle (5) is fixedly connected to a fixing box (8). The middle of the top of the second baffle (6) is fixedly connected to a snap connector (9). The front and rear sides of the snap connector (9) are provided with fixing grooves (10). The bottom of the inner cavity of the fixing box (8) is provided with a fixing device (11) that works with the fixing groove (10). The top of the inner cavity of the fixing box is provided with a control device (12) that works with the fixing device (11).
2. The bag filter for easy disassembly as described in claim 1, characterized in that: The front and rear sides of the first baffle (5) and the second baffle (6) are both sleeved on the surface of the limiting post (7). The left side of the snap connector (9) penetrates the fixed box (8) and extends into the inner cavity of the fixed box (8).
3. The bag filter for easy disassembly as described in claim 1, characterized in that: The first baffle (5) and the second baffle (6) both pass through the inner side of the fixed ring (4) on the side closest to the fixed ring (4) and are in contact with the inner side of the fixed ring (4). The left side of the first baffle (5) is provided with multiple limiting grooves (13), and the right side of the second baffle (6) is fixedly connected with multiple limiting blocks (14). The left side of the limiting block (14) passes through the limiting groove (13) and extends into the inner cavity of the limiting groove (13) and is in contact with the inside of the limiting groove (13).
4. The bag filter that is easy to disassemble as described in claim 1, characterized in that: The fixing device (11) includes two sliding columns (1101), and springs (1102) are sleeved on the front and rear sides of the two sliding columns (1101). A fixing block (1103) is provided on the opposite side of the two springs (1102), and a compression hole (1104) is provided on the left side of the top of the fixing block (1103).
5. A bag filter that is easy to disassemble as described in claim 1, characterized in that: The control device (12) includes a control plate (1201), with a squeezing column (1202) on the front and rear sides of the bottom of the control plate (1201), a support column (1203) on the front and rear sides of the left side of the control plate (1201), and a toggle plate (1204) on the left side of the support column (1203).
6. A bag filter that is easy to disassemble as described in claim 4, characterized in that: The front and rear sides of the sliding column (1101) are fixedly connected to the inner wall of the fixed box (8). The front and rear sides of the spring (1102) are fixedly connected to the inner wall of the fixed box (8) and the fixing block (1103) respectively. The fixing block (1103) is sleeved on the surface of the sliding column (1101). The side of the fixing block (1103) near the fixing groove (10) passes through the fixing groove (10) and extends into the inner cavity of the fixing groove (10) to contact the inner wall of the fixing groove (10).
7. A bag filter that is easy to disassemble as described in claim 5, characterized in that: The top of the extrusion column (1202) is fixedly connected to the control plate (1201). The bottom of the extrusion column (1202) passes through the extrusion hole (1104) and extends into the inner cavity of the extrusion hole (1104) to contact the inner wall of the extrusion hole (1104). The right side of the support column (1203) is fixedly connected to the control plate (1201). The left side of the support column (1203) passes through the fixed housing (8) and extends to the outside of the fixed housing (8) to be fixedly connected to the actuating plate (1204).