A high-efficiency and durable air filter
By improving the structural design of the air filter, the filter screen can be quickly disassembled and replaced without stopping the machine, which solves the problems of low disassembly efficiency and replacement during downtime in the existing technology, and improves maintenance efficiency and the continuity of filter use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO QIANGYA IND & TRADE
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing air filters require multiple screws for installation and specialized tools for disassembly, reducing maintenance efficiency and requiring shutdown for replacement, thus affecting operation.
The design incorporates a filter housing, connecting housing, mounting groove, mounting frame, support frame, and filter screen. A combination of a rotating rod, handle, spring, fixing plate, and fixing rod enables quick disassembly and replacement. Simultaneously, the rotating shaft, baffle plate, gears, limit frame, and screw allow for filter screen replacement without shutting down the machine. A guide groove, drain pipe, and valve body are used for impurity collection and cleaning.
It enables quick disassembly and replacement of the filter screen without the need for professional tools, improving maintenance efficiency. It also allows for filter screen replacement without shutting down the machine, ensuring the normal use and filtration effect of the filter and increasing the durability of the filter screen.
Smart Images

Figure CN224270544U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and more specifically, to a high-efficiency and durable air filter. Background Technology
[0002] An air filter is a device that removes particulate matter from the air through physical interception and electrostatic adsorption. Its core function is to ensure air cleanliness. It is generally used in cleanrooms, clean factories, laboratories, and clean rooms, or for dust prevention in electronic, mechanical, and communication equipment. However, with the accumulation of impurities and dust over time, existing air filters require regular cleaning and replacement to maintain filtration efficiency. These filters typically require multiple screws for installation, and disassembly necessitates the use of specialized tools to loosen these screws, reducing the efficiency of filter removal and maintenance. Furthermore, replacing the filter in existing air filters requires stopping the entire filter from operation, disrupting its normal use. Utility Model Content
[0003] (a) Technical problems to be solved
[0004] To address the problems existing in the prior art, this utility model provides a high-efficiency and durable air filter, which solves the technical problem mentioned in the background art that existing air filters typically require multiple screws for installation and professional tools to loosen them during use, thus reducing the efficiency of filter disassembly and maintenance.
[0005] (II) Technical Solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency and durable air filter, comprising a filter housing, the filter housing being orifice-shaped, connecting shells being fixedly provided at both ends of the filter housing, a connecting pipe being fixedly provided on one side of each connecting shell, two mounting slots being provided inside the filter housing, a mounting frame being movably provided in each mounting slot, a support frame and a filter screen being fixedly provided in each mounting frame, a movable chamber being provided on the mounting frame, a rotating rod being rotatably provided on the mounting frame, a handle being fixedly provided at the upper end of the rotating rod, a spring being movably provided on the outer side of the rotating rod, a fixing plate being fixedly provided at the lower end of the rotating rod extending into the movable chamber, two fixing rods being fixedly provided on the fixing plate, a movable groove cooperating with the fixing plate being provided inside the filter housing, a fixing hole cooperating with the fixing rod being provided at the upper end of the movable groove, two rotating shafts being rotatably provided inside the filter housing, and a baffle plate being fixedly provided on each rotating shaft.
[0007] The present invention is further configured such that a gear is fixedly provided at the lower end of the rotating shaft through the filter shell, which facilitates the rotation of the rotating shaft.
[0008] The present invention is further provided with a limiting frame fixed on the filter shell to facilitate the limiting of the bidirectional rack.
[0009] The present invention is further configured such that a screw is rotatably provided inside the limiting frame, and one end of the screw passes through the limiting frame and is fixedly provided with a handle to facilitate the rotation of the screw.
[0010] The present invention is further configured such that the screw threaded connection is provided with a bidirectional rack, and the bidirectional rack is meshed with both gears to facilitate gear rotation.
[0011] The present invention is further provided with guide grooves in the filter shells on both sides of each filter screen to facilitate the collection of impurities.
[0012] The present invention is further provided that the guide groove is fixedly connected to a drain pipe for easy cleaning of impurities.
[0013] The present invention is further provided that the sewage pipe is equipped with a valve body for easy control of the sewage pipe.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a high-efficiency and durable air filter with the following advantages:
[0016] 1. The filter screen can be quickly disassembled and replaced by a combination of filter housing, connecting housing, connecting pipe, mounting groove, mounting frame, support frame, filter screen, movable chamber, rotating rod, rotating handle, spring, fixing plate, fixing rod, movable groove and fixing hole. The entire disassembly process can be completed without the use of professional tools to tighten multiple screws. The operation is simple and the replacement is convenient, which improves the work efficiency of filter screen disassembly and maintenance, and ensures the filtration effect of the entire filter. The support frame can support the filter screen to prevent the filter screen from deforming and increase the durability of the filter screen.
[0017] 2. Through the cooperation of the rotating shaft, baffle plate, gear, limit frame, screw, handle and double rack, when one filter is replaced, the air can be filtered through the other filter. The entire filter does not need to be stopped, ensuring the normal use of the filter.
[0018] 3. Through the cooperation of the guide groove, drain pipe and valve body, the impurities intercepted by the filter screen are collected in the guide groove under the action of gravity, and the drain pipe is controlled to clean the impurities by opening the valve body. Attached Figure Description
[0019] Figure 1This is a schematic diagram of the overall structure of a high-efficiency and durable air filter according to the present invention;
[0020] Figure 2 This is a schematic diagram of the overall structure of a high-efficiency and durable air filter according to this utility model from another perspective;
[0021] Figure 3 This is a cross-sectional schematic diagram of the filter housing and its connecting components in the filter screen installation state.
[0022] Figure 4 This is a schematic cross-sectional view of the filter housing and its connecting components when the baffle plate is rotating.
[0023] Figure 5 This is a cross-sectional structural diagram of the filter housing and its connecting components in the installed state of the mounting frame.
[0024] Figure 6 for Figure 5 A magnified view of part A in the diagram.
[0025] In the diagram: 1. Filter housing; 2. Connecting housing; 3. Connecting pipe; 4. Mounting groove; 5. Mounting frame; 6. Support frame; 7. Filter screen; 8. Movable chamber; 9. Rotating rod; 10. Rotating handle; 11. Spring; 12. Fixing plate; 13. Fixing rod; 14. Movable groove; 15. Fixing hole; 16. Rotating shaft; 17. Baffle plate; 18. Gear; 19. Limiting frame; 20. Screw; 21. Handle; 22. Double-sided rack; 23. Guide groove; 24. Drain pipe; 25. Valve body. Detailed Implementation
[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0029] Please see Figures 1-6A high-efficiency and durable air filter includes a filter housing 1, which is orifice-shaped. Connecting housings 2 are fixedly attached to both ends of the filter housing 1. A connecting pipe 3 is fixedly attached to one side of each connecting housing 2. Two mounting slots 4 are provided inside the filter housing 1. A mounting frame 5 is movably mounted in each mounting slot 4. A support frame 6 and a filter screen 7 are fixedly mounted inside the mounting frame 5. A movable chamber 8 is provided on the mounting frame 5. A rotating rod 9 is rotatably mounted on the mounting frame 5. A handle 10 is fixedly attached to the upper end of the rotating rod 9. A spring 11 is movably mounted on the outer side of the rotating rod 9. A fixing plate 12 is fixedly attached to the lower end of the rotating rod 9 into the movable chamber 8. Two fixing rods 13 are fixedly mounted on the fixing plate 12. A movable groove 14 that mates with the fixing plate 12 is provided inside the filter housing 1. A fixing hole 15 that mates with the fixing rod 13 is provided at the upper end of the movable groove 14. Guide grooves 23 are provided on both sides of the filter housing 1 for each filter screen 7. A drain pipe 24 is fixedly connected to the guide groove 23. A valve body 25 is provided on the drain pipe 24.
[0030] In this embodiment, one of the connecting pipes 3 is connected to an air pump, allowing the air to be filtered to enter the connecting housing 2 from one connecting pipe 3, then pass through the filter housing 1 and be filtered by a filter screen 7, before passing through another connecting housing 2 and finally exiting from another connecting pipe 3. Impurities intercepted by the filter screen 7 fall into the guide groove 23. Opening the valve body 25 allows for the cleaning of these impurities. The support frame 6 supports the filter screen 7, preventing deformation and damage, thereby increasing the durability of the filter screen 7. When the filter screen 7 needs to be disassembled and replaced, press down on the handle 10, compress the spring 11, the handle 10 drives the rotating rod 9 to move, the rotating rod 9 drives the fixing plate 12 to move, and the fixing plate 12 drives the two fixing rods 13 to move, so that the fixing rods 13 move out of the fixing hole 15. Rotate the handle 10, the handle 10 drives the fixing plate 12 and the two fixing rods 13 to rotate 90 degrees, so that they rotate into the movable chamber 8. At this time, the fixing of the mounting frame 5 is released. Pull the handle 10, the handle 10 drives the fixing plate 12 to move through the rotating rod 9, the fixing plate 12 drives the mounting plate to move, so that the mounting frame 5 moves out of the mounting groove 4, thereby removing the mounting frame 5 and the filter screen 7. The cleaning or replacement mounting frame 5 and the filter screen 7 can be installed by using the reverse operation, so that the filter screen 7 can be quickly disassembled and replaced, thus ensuring the filtration efficiency.
[0031] Please see Figures 1-6 As one embodiment for partially shielding the filter housing: two rotating shafts 16 are rotatably provided inside the filter housing 1, and a baffle plate 17 is fixedly provided on each rotating shaft 16. A gear 18 is fixedly provided through the filter housing 1 at the lower end of the rotating shaft 16. A limiting frame 19 is fixedly provided on the filter housing 1. A screw 20 is rotatably provided inside the limiting frame 19. A handle 21 is fixedly provided through the limiting frame 19 at one end of the screw 20. A double-sided rack 22 is threadedly connected to the screw 20. The double-sided rack 22 is meshed with both gears 18.
[0032] More specifically, during the entire operation of the device, the two baffles 17 block one side of the filter housing 1, allowing air to pass through only the other side and be filtered by a filter screen 7. Before replacing the filter screen 7, turn the handle 21. The handle 21 drives the screw 20 to rotate. Since the screw 20 is threadedly connected to the bidirectional rack 22, the bidirectional rack 22 moves along the inside of the limiting frame 19. The bidirectional rack 22 drives the two gears 18 to rotate, the gears 18 drive the rotating shaft 16 to rotate, and the rotating shaft 16 drives the baffles 17 to rotate, so that the two baffles 17 block the other side of the filter housing 1. The air is filtered by the clean filter screen 7. At this time, the side of the filter housing 1 with the used filter screen 7 is blocked and can be replaced.
[0033] In summary, during use or operation of the overall equipment: the two baffles 17 block one side of the filter housing 1, allowing air to pass only from the other side. One of the connecting pipes 3 is connected to an air pump, allowing the air to be filtered to enter the connecting housing 2 from one connecting pipe 3, then pass through the filter housing 1 and be filtered by a filter screen 7, before passing through the other connecting housing 2 and finally being discharged from the other connecting pipe 3. Impurities intercepted by the filter screen 7 will fall into the guide groove 23. Opening the valve body 25 allows for the cleaning of impurities. The support frame 6 supports the filter screen 7, preventing deformation and increasing its durability. Before disassembling one of the filter screens 7, turn the handle 21. The handle 21 drives the screw 20 to rotate. Since the screw 20 is threadedly connected to the double-sided rack 22, the double-sided rack 22 moves along the inside of the limiting frame 19. The double-sided rack 22 drives the two gears 18 to rotate. The gears 18 drive the rotating shaft 16 to rotate. The rotating shaft 16 drives the baffle plate 17 to rotate, so that the two baffle plates 17 block the other side of the filter housing 1. The air is filtered through the clean filter screen 7. At this time, the side of the filter housing 1 with the used filter screen 7 is blocked and can be replaced.
[0034] When the filter screen 7 needs to be disassembled, this prevents deformation and damage, thus increasing its durability. To remove and replace the filter screen 7, press down on the handle 10, compressing the spring 11. The handle 10 moves the rotating rod 9, which in turn moves the fixing plate 12. The fixing plate 12 then moves the two fixing rods 13, causing them to move out of the fixing hole 15. Rotating the handle 10 causes the fixing plate 12 and the two fixing rods 13 to rotate 90 degrees into the movable chamber 8, releasing the fixing of the mounting frame 5. Pulling the handle 10 moves the fixing plate 12 via the rotating rod 9, which in turn moves the mounting plate, causing the mounting frame 5 to move out of the mounting slot 4. This removes the mounting frame 5 and the filter screen 7. After cleaning or replacing, the mounting frame 5 and filter screen 7 can be installed using the reverse operation. This allows for quick removal and replacement of the filter screen 7, ensuring filtration efficiency.
[0035] In the overall use of the device, for all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. 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 variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A high-efficiency and durable air filter, comprising a filter housing (1), characterized in that: The filter housing (1) is mouth-shaped. Connecting shells (2) are fixedly provided at both ends of the filter housing (1). A connecting pipe (3) is fixedly provided on one side of each connecting shell (2). Two mounting slots (4) are provided inside the filter housing (1). A mounting frame (5) is movably provided in each mounting slot (4). A support frame (6) and a filter screen (7) are fixedly provided in the mounting frame (5). An movable chamber (8) is provided on the mounting frame (5). A rotating rod (9) is rotatably provided on the mounting frame (5). A handle (10) is fixedly provided at the upper end of the rotating rod (9). A spring (11) is movably provided on the outside of the rotating rod (9). A fixing plate (12) is fixedly provided in the moving chamber (8) at the lower end of the rotating rod (9). Two fixing rods (13) are fixedly provided on the fixing plate (12). A movable groove (14) that cooperates with the fixing plate (12) is provided in the filter shell (1). A fixing hole (15) that cooperates with the fixing rod (13) is provided at the upper end of the movable groove (14). Two rotating shafts (16) are rotatably provided in the filter shell (1). A baffle plate (17) is fixedly provided on each of the rotating shafts (16).
2. The high-efficiency and durable air filter according to claim 1, characterized in that: The lower end of the rotating shaft (16) passes through the filter shell (1) and is fixedly equipped with a gear (18).
3. The high-efficiency and durable air filter according to claim 2, characterized in that: A limiting frame (19) is fixedly provided on the filter shell (1).
4. The high-efficiency and durable air filter according to claim 3, characterized in that: A screw (20) is rotatably provided inside the limiting frame (19), and a handle (21) is fixedly provided at one end of the screw (20) through the limiting frame (19).
5. A high-efficiency and durable air filter according to claim 4, characterized in that: The screw (20) is threadedly connected to a bidirectional rack (22), which meshes with two gears (18).
6. A high-efficiency and durable air filter according to claim 1, characterized in that: Each of the filter screens (7) has a guide groove (23) in the filter shell (1) on both sides.
7. A high-efficiency and durable air filter according to claim 6, characterized in that: The guide groove (23) is fixedly connected to a drain pipe (24).
8. A high-efficiency and durable air filter according to claim 7, characterized in that: The drain pipe (24) is equipped with a valve body (25).