Filter bag with step-by-step filtering function
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HUACHEN ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
Existing filter bags accumulate dust on their surface after prolonged use, affecting gas flow and filtration efficiency. Furthermore, the presence of only a single filter bag inside results in poor dust removal performance.
设计了一种具备逐级过滤功能的滤袋,包含固定组件、过滤组件和清理组件,通过设置第一滤袋和第二滤袋进行逐级过滤,并利用振片和接触针防止灰尘附着,采用振片和接触针的组合结构使滤网抖动以防止灰尘附着。
It improves the smoothness of gas flow and the dust removal effect. Through the design of the step-by-step filtration and cleaning components, it effectively prevents dust adhesion and improves the performance of the filter bag.
Smart Images

Figure CN224220981U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter bag technology, specifically to a filter bag with a step-by-step filtration function. Background Technology
[0002] In the production process, in order to ensure the cleanliness of the air inside the workshop, it is usually necessary to use filters to extract the air from the workshop and filter it. Filter bags are an important part of the filter. Filter bags have excellent chemical stability and heat resistance. They are representative of the filter media industry and are also one of the best performing products among all commonly used filter materials. They have achieved high levels in terms of filtration efficiency and filtration accuracy. The air impacts the surface of the filter bag, and the filter bag intercepts the particulate matter in the air.
[0003] However, when existing filter bags filter air, they trap particulate matter in the air. After prolonged use, a lot of dust accumulates on the surface of the filter bags, affecting the smooth flow of subsequent gas and the filtration effect. Furthermore, because they only contain a single filter bag, the dust removal effect is poor, making them unsuitable for widespread use.
[0004] To address this problem, this application provides a filter bag with a step-by-step filtration function. Utility Model Content
[0005] The purpose of this utility model is to provide a filter bag with a step-by-step filtration function to solve the problems mentioned in the background art, such as the filter bag surface accumulating a lot of dust after long-term use, the filter bag having only a single filter bag inside, which affects the smoothness of subsequent gas flow and filtration effect, and the poor filtration and dust removal effect and poor performance.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A filter bag with a step-by-step filtration function includes a fixing component, a filtering component, and a cleaning component. The fixing component includes a fixing cage and a double-ended stud, the double-ended stud being movably installed inside the fixing cage. The filtering component is fixedly installed inside the fixing component. The filtering component includes a fixing frame, a first filter bag, and a second filter bag, both of which are fixedly installed inside the fixing frame. The cleaning component is disposed inside the fixing component and includes a vibrating plate, the vibrating plate being fixedly installed outside the fixing frame.
[0008] A further improvement of this utility model is that: the fixed cage is externally fixed with connecting ears, and both ends of the double-ended stud are threaded with nuts.
[0009] A further improvement of this utility model is that: a movable block is movably installed inside the fixed cage, and a connecting column is fixedly installed outside the fixed frame.
[0010] A further improvement of this utility model is that: a washer is movably mounted on the outside of the double-ended stud, a spring is movably mounted on the outside of the double-ended stud, the washer is disposed at one end of the spring, and the other end of the spring is movably connected to one side of the fixing frame.
[0011] A further improvement of this utility model is that a sleeve is movably mounted on the outside of the double-ended stud, and the two ends of the sleeve are movably connected to one side of the gasket.
[0012] A further improvement of this utility model is that a contact needle is fixedly installed on one side of the vibrating plate, and the other end of the contact needle is movably connected to one side of the first filter bag and the second filter bag.
[0013] A further improvement of this utility model is that a sealing gasket is fixedly installed inside the fixed cage, and the other side of the sealing gasket is movably connected to one side of the fixed frame.
[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0015] 1. This utility model provides a filter bag with a step-by-step filtration function. Through the combined action of the vibrating plate and the contact needle, the vibrating plate is set on the upper surface of the filter screen. When the air enters the fixed cage, it will first impact the vibrating plate, causing the vibrating plate to vibrate. This causes the contact needle on the vibrating plate to contact the filter screen, making the filter screen shake and preventing dust from adhering to its surface, thus affecting the smoothness of subsequent gas flow and the filtration effect.
[0016] 2. This utility model provides a filter bag with a step-by-step filtration function. Through the combined action of the first filter bag and the second filter bag, and by simultaneously setting the first filter bag and the second filter bag inside the fixed cage, the particulate matter contained in the air can be better intercepted during filtration, thereby improving the filtration and dust removal effect. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the filter bag with step-by-step filtration function of this utility model.
[0018] Figure 2 This is a schematic diagram of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of this utility model.
[0021] In the diagram: 1. Fixing assembly; 2. Filtering assembly; 3. Cleaning assembly; 10. Fixing cage; 11. Connecting lug; 12. Double-ended stud; 13. Nut; 14. Washer; 15. Spring; 16. Sleeve; 20. First filter bag; 21. Second filter bag; 22. Connecting post; 23. Sealing gasket; 24. Fixing frame; 30. Vibrating plate; 31. Moving block; 32. Contact pin. Detailed Implementation
[0022] The present invention will be further described in detail below with reference to embodiments:
[0023] like Figure 1-4 As shown, this utility model provides a filter bag with a step-by-step filtration function, including a fixing component 1, a filtering component 2, and a cleaning component 3. The fixing component 1 includes a fixing cage 10 and double-ended studs 12. The double-ended studs 12 are movably installed inside the fixing cage 10. A connecting ear 11 is fixedly connected to the outside of the fixing cage 10, and the device is connected to a pipeline through the connecting ear 11. Nuts 13 are threaded to both ends of the double-ended studs 12. A washer 14 and a spring 15 are movably installed on the outside of the double-ended studs 12. 14 is set at one end of spring 15, and the other end of spring 15 is movably connected to one side of fixed frame 24. A sleeve 16 is movably installed on the outside of double-ended stud 12. The two ends of sleeve 16 are movably connected to one side of gasket 14. When the two fixed cages 10 are connected by nut 13 and double-ended stud 12, nut 13 will press the fixed cage 10 at the connection of the two fixed cages 10, and then the fixed cage 10 will press the fixed frame 24, so that the fixed frame 24 compresses spring 15, so that the fixed frame 24 is tightly pressed against the surface of sealing gasket 23 to seal and prevent gas from leaking without filtration.
[0024] like Figure 2-4 As shown, the filter assembly 2 is fixedly installed inside the fixed assembly 1. The filter assembly 2 includes a fixed frame 24, a first filter bag 20, and a second filter bag 21. Both the first filter bag 20 and the second filter bag 21 are fixedly installed inside the fixed frame 24. A connecting column 22 is fixedly installed on the outside of the fixed frame 24. A sealing gasket 23 is fixedly installed inside the fixed cage 10. The other side of the sealing gasket 23 is movably connected to one side of the fixed frame 24. When the gas to be filtered enters the fixed cage 10, it first passes through the first filter bag 20 for the first filtration, and then passes through the second filter bag 21 for the second filtration. By simultaneously setting the first filter bag 20 and the second filter bag 21 inside the fixed cage 10, the particulate matter contained in the air can be better intercepted during filtration. The filtration and dust removal effect is improved through the combined action of the first filter bag 20 and the second filter bag 21.
[0025] like Figure 2 and Figure 4 As shown, the cleaning component 3 is located inside the fixed component 1. The cleaning component 3 includes a vibrating plate 30, which is fixedly installed on the outside of the fixed frame 24. A movable block 31 is movably installed inside the fixed cage 10. A contact pin 32 is fixedly installed on one side of the vibrating plate 30, and the other end of the contact pin 32 is movably connected to one side of the first filter bag 20 and the second filter bag 21. When air enters the fixed cage 10, it will first impact the vibrating plate 30 on the fixed frame 24, causing the vibrating plate 30 to vibrate and the contact pin 32 on the vibrating plate 30 to contact the filter screen, causing the filter screen to shake. Through the combined action of the vibrating plate 30 and the contact pin 32, dust is prevented from adhering to the surface of the filter screen, affecting the smoothness of subsequent gas flow and the filtration effect. The intercepted particles fall to the bottom inside the fixed cage 10. When cleaning these particles, the movable block 31 can be pulled out to export the particles inside the fixed cage 10.
[0026] The working principle of this filter bag with step-by-step filtration function will be explained in detail below.
[0027] like Figure 1-4 As shown, when using this filter bag with a step-by-step filtration function, when the two fixed cages 10 are connected by the nut 13 and the double-ended stud 12, the nut 13 will press the fixed cages 10 at the connection point, and then the fixed cages 10 will press the fixed frame 24, causing the fixed frame 24 to compress the spring 15, so that the fixed frame 24 is tightly pressed against the surface of the sealing gasket 23 to seal and prevent unfiltered gas leakage. The device is connected to the pipeline through the connecting ear 11. When the gas to be filtered enters the fixed cage 10, it first passes through the first filter bag 20, which performs the first filtration, and then passes through the second filter bag 21 for the second filtration. By simultaneously setting the first filter bag inside the fixed cage 10, the gas is effectively filtered. The first filter bag 20 and the second filter bag 21 enable the air to be filtered more effectively, and the dust removal effect is improved through the combined action of the first filter bag 20 and the second filter bag 21. When the air enters the fixed cage 10, it will first impact the vibrating plate 30 on the fixed frame 24, causing the vibrating plate 30 to vibrate and the contact pin 32 on the vibrating plate 30 to contact the filter screen, causing the filter screen to shake. Through the combined action of the vibrating plate 30 and the contact pin 32, dust is prevented from adhering to the surface of the filter screen, which would affect the smoothness of subsequent gas flow and the filtration effect. The intercepted particles fall to the bottom of the fixed cage 10. When cleaning these particles, the moving block 31 can be pulled out to export the particles inside the fixed cage 10.
[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A filter bag with a step-by-step filtration function, comprising a fixing component (1), a filtering component (2), and a cleaning component (3), characterized in that: The fixing component (1) includes a fixing cage (10) and a double-headed stud (12). The double-headed stud (12) is movably installed inside the fixing cage (10). The filter component (2) is fixedly installed inside the fixing component (1). The filter component (2) includes a fixing frame (24), a first filter bag (20), and a second filter bag (21). The first filter bag (20) and the second filter bag (21) are both fixedly installed inside the fixing frame (24). The cleaning component (3) is located inside the fixing component (1). The cleaning component (3) includes a vibrating plate (30). The vibrating plate (30) is fixedly installed outside the fixing frame (24).
2. The filter bag with step-by-step filtration function according to claim 1, characterized in that: The fixed cage (10) is externally fixed with connecting ears (11), and both ends of the double-headed stud (12) are threaded with nuts (13).
3. A filter bag with a step-by-step filtration function according to claim 2, characterized in that: The fixed cage (10) is movably installed with a movable block (31), and the fixed frame (24) is fixedly installed with a connecting column (22) on the outside.
4. A filter bag with a step-by-step filtration function according to claim 1, characterized in that: A washer (14) is movably mounted on the outside of the double-ended stud (12), and a spring (15) is movably mounted on the outside of the double-ended stud (12). The washer (14) is disposed at one end of the spring (15), and the other end of the spring (15) is movably connected to one side of the fixing frame (24).
5. A filter bag with a step-by-step filtration function according to claim 4, characterized in that: A sleeve (16) is movably mounted on the outside of the double-ended stud (12), and the two ends of the sleeve (16) are movably connected to one side of the gasket (14).
6. A filter bag with a step-by-step filtration function according to claim 1, characterized in that: A contact needle (32) is fixedly installed on one side of the vibrating plate (30), and the other end of the contact needle (32) is movably connected to one side of the first filter bag (20) and the second filter bag (21).
7. A filter bag with a step-by-step filtration function according to claim 1, characterized in that: A sealing gasket (23) is fixedly installed inside the fixed cage (10), and the other side of the sealing gasket (23) is movably connected to one side of the fixed frame (24).