Self-cleaning environment-friendly filter bag
By designing a limiting block, a return spring, and a clamping plate structure on the filter bag, the problem of cumbersome filter bag replacement is solved, enabling quick disassembly and replacement of the filter bag, extending the service life of the equipment, and simplifying the operation process.
Patent Information
- Application Number
- CN202521187953.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
- Estimated Expiration
- 2035-06-11
AI Technical Summary
Existing self-cleaning environmentally friendly filter bags are prone to damage after prolonged use, resulting in cumbersome, time-consuming, and labor-intensive replacements, which affects filtration efficiency and equipment lifespan.
A self-cleaning environmentally friendly filter bag has been designed. By setting a limit block, a return spring, and a clamping plate structure on the mounting frame, the filter bag can be quickly disassembled and replaced, simplifying the operation process and saving time and effort.
It enables quick replacement of filter bags, maintains filtration efficiency, extends equipment lifespan, simplifies operation, and requires no special tools.
Smart Images

Figure CN224270523U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental filtration technology, and in particular to a self-cleaning environmentally friendly filter bag. Background Technology
[0002] Filter bags are a key component in the operation of baghouse dust collectors. Cylindrical filter bags are typically suspended vertically in the dust collector. Filter bags have excellent chemical stability and heat resistance, representing the highest performance among filter media and the most advanced type of commonly used filter materials. They achieve high levels in terms of filtration efficiency and filtration accuracy.
[0003] Traditional self-cleaning environmentally friendly filter bags are prone to damage after prolonged use. Damaged filter bags cannot effectively filter particulate matter in the air and may even allow pollutants to be directly released into the environment, causing pollution. Therefore, the filter bags need to be replaced frequently. However, the existing filter bag replacement methods are cumbersome and require specific tools, which is time-consuming and labor-intensive, thus reducing work efficiency. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing self-cleaning environmentally friendly filter bags are not easy to replace. Therefore, we propose a self-cleaning environmentally friendly filter bag.
[0005] To achieve the above objectives, this application adopts the following technical solution: a self-cleaning environmentally friendly filter bag, including a mounting frame, a mounting groove at the bottom of the mounting frame, a boss fixed at the bottom of the mounting frame, a filter bag body installed inside the mounting groove, a pulse valve installed at the top of the mounting frame, an air guide pipe at the top of the pulse valve, a connecting pipe at the bottom of the boss, multiple air jets fixed on the surface of the connecting pipe, a mounting ring fixed on the top surface of the filter bag body, clamping plates fixed on both sides of the mounting ring, clamping slots for cooperating with the clamping plates on both sides of the mounting groove, a housing fixed on both sides of the bottom of the mounting frame, a pull plate threaded to the side wall of the housing, a limit block fixed at one end of the pull plate inside the housing, a fixed plate with a spring-loaded mechanism slidably connected inside the housing, a rod fixed on one side of the fixed plate, a slot on the surface of the clamping plate, and the rod penetrating the interior of the mounting frame and inserting into the slot.
[0006] Preferably, the rebound mechanism includes return springs installed at both ends on one side of the fixed plate, and the other end of the return spring is fixed to the inside of the housing.
[0007] Preferably, the limiting block is elliptical in shape.
[0008] Preferably, guide rods are fixed on both sides inside the housing, and grooves that cooperate with the guide rods are provided at both ends of the fixing plate.
[0009] Preferably, the surface of the pull plate is provided with a gasket, and the gasket is made of rubber.
[0010] Preferably, the interior of the card slot is an L-shaped groove.
[0011] Preferably, the diameter of the boss is slightly smaller than the diameter of the inner side of the mounting ring.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] In this invention, by twisting the pull plate, the limiting block is rotated 90 degrees laterally, moving the limiting block away from the fixed plate. Then, the return force of the reset spring pushes the fixed plate to disengage the insertion rod from the inside of the slot. Then, by twisting the mounting ring, the clamping plate is disengaged from the inside of the slot, and the filter bag body can be disassembled. This facilitates the replacement of the filter bag body, maintains the filtration effect, extends the service life of the equipment, and is simple to operate. No special tools are required, saving time and effort. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the ash removal pipe structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the bottom structure of the mounting bracket of this utility model;
[0018] Figure 5 This is a schematic diagram of the internal structure of the shell of this utility model.
[0019] Legend: 1. Mounting bracket; 2. Mounting groove; 3. Boss; 4. Filter bag body; 5. Pulse valve; 6. Air guide pipe; 7. Connecting pipe; 8. Air nozzle; 9. Mounting ring; 10. Clamping plate; 11. Housing; 12. Pull plate; 13. Limiting block; 14. Fixing plate; 15. Insert rod; 16. Slot; 17. Return spring; 18. Gasket; 19. Guide rod; 20. Groove; 21. Slot. Detailed Implementation
[0020] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.
[0021] Reference Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a self-cleaning environmentally friendly filter bag, including a mounting frame 1, a mounting groove 2 at the bottom of the mounting frame 1, a boss 3 fixed at the bottom of the mounting frame 1, a filter bag body 4 installed inside the mounting groove 2, a pulse valve 5 installed at the top of the mounting frame 1, an air guide pipe 6 provided at the top of the pulse valve 5, a connecting pipe 7 provided at the bottom of the boss 3, multiple air jets 8 fixed on the surface of the connecting pipe 7, a mounting ring 9 fixed on the top surface of the filter bag body 4, a retaining plate 10 fixed on both sides of the mounting ring 9, a retaining groove 21 for cooperating with the retaining plate 10 on both sides of the mounting groove 2, a housing 11 fixed on both sides of the bottom of the mounting frame 1, a pull plate 12 threadedly connected to the side wall of the housing 11, a limit block 13 fixed at one end of the pull plate 12 inside the housing 11, and the housing 11 sliding inside. A fixed plate 14 with a rebound mechanism is connected. A rod 15 is fixed to one side of the fixed plate 14. A slot 16 is opened on the surface of the clamping plate 10. The rod 15 passes through the interior of the mounting bracket 1 and is inserted into the slot 16. The rebound mechanism includes a return spring 17 installed at both ends on one side of the fixed plate 14. The other end of the return spring 17 is fixed to the interior of the housing 11. By turning the pull plate 12, the limiting block 13 is rotated 90 degrees laterally, so that the limiting block 13 moves away from the fixed plate 14. Then, the rebound force of the return spring 17 can push the fixed plate 14 to drive the rod 15 out of the interior of the slot 16. Then, the mounting ring 9 is turned to make the clamping plate 10 out of the interior of the clamping groove 21, so that the filter bag body 4 can be disassembled, which is convenient for replacing the filter bag body 4, maintaining the filtration effect, extending the service life of the equipment, and is simple to operate, requiring no special tools, saving time and effort.
[0022] Reference Figure 5 As shown in this embodiment, the limiting block 13 is elliptical in shape. By designing the limiting block 13 into an elliptical shape, the contact area between the limiting block 13 and the fixing plate 14 can be reduced, thereby making the movement between the limiting block 13 and the fixing plate 14 smoother and less strenuous, and avoiding jamming.
[0023] Reference Figure 5 As shown in this embodiment: guide rods 19 are fixed on both sides inside the housing 11, and grooves 20 that cooperate with the guide rods 19 are provided at both ends of the fixing plate 14. Through the structure of the guide rods 19 and the grooves 20, the movement of the fixing plate 14 inside the housing 11 can be restricted to prevent it from deviating and improve stability.
[0024] Reference Figure 5 As shown in this embodiment, a gasket 18 is provided on the surface of the pull plate 12. The gasket 18 is made of rubber. By using the properties of the rubber material, the firmness between the pull plate 12 and the housing 11 can be further improved, and loosening can be avoided, thus affecting the fixing effect.
[0025] Reference Figure 4 As shown in this embodiment: the inside of the card slot 21 is an L-shaped groove. By adopting an L-shaped design inside the card slot 21, the card plate 10 can be limited by the L-shaped structure after being inserted into the card slot 21, which facilitates the user to fix the card plate 10 and further improves the convenience of installing the filter bag body 4.
[0026] Reference Figure 4 As shown in this embodiment, the diameter of the boss 3 is slightly smaller than the inner diameter of the mounting ring 9. By designing the diameter of the boss 3 to be slightly smaller than the inner diameter of the mounting ring 9, the outer side of the boss 3 can be tightly attached to the inner side of the mounting ring 9 when the mounting ring 9 and the mounting bracket 1 are connected, thereby improving the tightness of the connection and avoiding air leakage during use, thus ensuring the filtration effect.
[0027] Working principle: By turning the pull plate 12, the user rotates the limiting block 13 horizontally by 90 degrees, moving the limiting block 13 away from the fixed plate 14. Then, the return force of the return spring 17 pushes the fixed plate 14, causing the insertion rod 15 to disengage from the slot 16. Finally, turning the mounting ring 9 disengages the retaining plate 10 from the slot 21, thus completing the disassembly of the filter bag body 4. This facilitates replacement of the filter bag body 4, maintains filtration efficiency, and extends the equipment's lifespan. The operation is simple, requiring no special tools, saving time and effort. The elliptical design of the limiting block 13 reduces the contact area between the limiting block 13 and the fixed plate 14, making their movement smoother and less strenuous, preventing jamming. The structure of the guide rod 19 and the groove 20 allows the fixed plate 14 to move smoothly within the housing 11. The movement of the part is restricted to prevent it from shifting and improve stability. By setting the gasket 18, the properties of its rubber material can be used to further improve the firmness between the pull plate 12 and the housing 11, and prevent loosening that would affect the fixing effect. By adopting an L-shaped design inside the slot 21, the card plate 10 can be limited by the L-shaped structure after being inserted into the slot 21, which makes it easier for the user to fix the card plate 10 and further improves the convenience of installing the filter bag body 4. By designing the diameter of the boss 3 to be slightly smaller than the inner diameter of the mounting ring 9, the outer side of the boss 3 can be tightly attached to the inner side of the mounting ring 9 when the mounting ring 9 and the mounting frame 1 are connected, which improves the tightness of the connection and prevents air leakage during use, thereby ensuring the filtration effect.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A self-cleaning environmentally friendly filter bag, comprising a mounting frame (1), characterized in that: The mounting frame (1) has a mounting groove (2) at its bottom and a boss (3) fixed at its bottom. A filter bag body (4) is installed inside the mounting groove (2). A pulse valve (5) is installed at the top of the mounting frame (1). An air guide pipe (6) is provided at the top of the pulse valve (5). A connecting pipe (7) is provided at the bottom of the boss (3). Multiple air jets (8) are fixed on the surface of the connecting pipe (7). A mounting ring (9) is fixed on the top surface of the filter bag body (4). A retaining plate (10) is fixed on both sides of the mounting ring (9). The mounting groove (2) has multiple air jets (8) fixed on both sides of the mounting ring (1). Each of the mounting brackets (1) has a slot (21) for use with the card plate (10). The bottom sides of the mounting bracket (1) are fixed with housings (11). The side wall of the housing (11) is threaded with a pull plate (12). One end of the pull plate (12) inside the housing (11) is fixed with a limit block (13). The inside of the housing (11) is slidably connected with a fixing plate (14) with a spring-loaded mechanism. One side of the fixing plate (14) is fixed with a plug rod (15). The surface of the card plate (10) has a slot (16). The plug rod (15) passes through the inside of the mounting bracket (1) and is inserted into the slot (16).
2. The self-cleaning environmentally friendly filter bag according to claim 1, characterized in that: The rebound mechanism includes a return spring (17) installed at both ends on one side of the fixed plate (14), and the other end of the return spring (17) is fixed to the inside of the housing (11).
3. The self-cleaning environmentally friendly filter bag according to claim 1, characterized in that: The limiting block (13) is elliptical in shape.
4. The self-cleaning environmentally friendly filter bag according to claim 1, characterized in that: Guide rods (19) are fixed on both sides inside the housing (11), and grooves (20) that cooperate with the guide rods (19) are opened at both ends of the fixing plate (14).
5. The self-cleaning environmentally friendly filter bag according to claim 1, characterized in that: The surface of the pull plate (12) is provided with a gasket (18), and the gasket (18) is made of rubber.
6. The self-cleaning environmentally friendly filter bag according to claim 1, characterized in that: The interior of the card slot (21) is an L-shaped groove.
7. The self-cleaning environmentally friendly filter bag according to claim 1, characterized in that: The diameter of the boss (3) is slightly smaller than the diameter of the inner side of the mounting ring (9).