Medium-efficiency filter cotton nanoscale particle blocking device
By using a medium-efficiency filter cotton nanoparticle barrier, and combining a pre-filter layer, a medium-efficiency filter layer, and a post-filter layer, the problem of low efficiency in handling nanoparticles in existing air filtration devices is solved, achieving high-efficiency filtration and ensuring gas quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-13
AI Technical Summary
In existing air filtration devices, HEPA filters or other high-efficiency filter materials have limited effectiveness in handling nano-sized particles, resulting in reduced efficiency.
It adopts a medium-efficiency filter cotton nano-particle barrier, including a shell, a pre-filter layer, a medium-efficiency filter layer and a post-filter layer. The pre-filter layer intercepts coarse particles, the medium-efficiency filter layer captures nano-sized particles, and the post-filter layer performs fine processing. Combined with the fan driving airflow and the stirring blades cleaning the filter layer, it ensures high-efficiency filtration.
It improves air filtration efficiency, ensures gas quality meets standards, prevents the spread of nano-sized particles, extends the service life of the filter layer, and reduces replacement frequency and cost.
Smart Images

Figure CN223988253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air filtration device technology, and in particular to a medium-efficiency filter cotton nanoparticle barrier. Background Technology
[0002] Medium-efficiency filter cotton nanoparticle blocker is a device made of medium-efficiency filter cotton that effectively blocks nanoparticles. It aims to intercept and block tiny nanoscale particles through its filtration mechanism, thereby playing an important role in ensuring air quality and preventing the spread of nanoscale pollutants in many fields such as air purification and specific production environments.
[0003] A search revealed Chinese patent publication number CN220860931U, which discloses a nanofiber material filtration device. The device includes a housing with a lower and upper partition fixed to its inner wall. Multiple nanofiber filter elements are located at the bottom of the lower partition. A dust collection drawer is located on the bottom inner wall of the housing, and a fan is located at the top of the upper partition. A drawer door is located on the front of the housing. This invention utilizes a suction pipe system including connecting pipes, slots, sleeves, retaining rings, locking blocks, a filter box, and filter plates. Before use, the filter box is installed on one side of the housing. During air filtration, air is drawn into the filter box, where the filter plates filter and block large particulate impurities, achieving primary air filtration. This prevents a large number of large particles from entering the device, effectively extending the lifespan of the nanofiber filter elements, reducing replacement frequency, and lowering operating costs. However, current market-common air filtration devices use HEPA filters or other high-efficiency filter materials. While these materials effectively remove most particulate matter, their effectiveness is limited when processing nanoscale particles, thus reducing work efficiency. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a medium-efficiency filter cotton nanoparticle barrier, which aims to improve the problem that the air filtration devices commonly used in the current market use HEPA filters or other high-efficiency filter materials. Although these materials can effectively remove most particulate matter, their effect is limited when dealing with nanoparticles, thus reducing work efficiency.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a medium-efficiency filter cotton nanoparticle barrier, comprising a housing, an air inlet pipe connected to the front right side of the housing, an air outlet pipe connected to the front left side of the housing, a fan installed in the middle right side of the housing, a pre-filter layer installed inside the right side of the housing, a medium-efficiency filter layer provided in the middle inner side of the housing, a post-filter layer installed inside the left side of the housing, a rotating rod rotatably connected to the rear top of the housing, a top cover fixedly connected to the front side of the rotating rod, and a stirring mechanism installed inside the housing for stirring the air.
[0006] Through the above technical solution: air enters the housing through the air intake pipe, the pre-filter layer first intercepts coarse particles and initially purifies the air, the air enters the medium-efficiency filter layer, in which nanofibers capture nano-sized particles to further improve the air purity, the post-filter layer performs fine processing to remove residual impurities and odors, ensuring that the quality of the discharged gas meets the standards, and the fan drives the airflow to improve the filtration efficiency.
[0007] As a further description of the above technical solution:
[0008] The stirring mechanism includes a rotating rod, which is installed on the left side of the fan. The left side of the rotating rod passes through the middle of the pre-filter layer, the medium-efficiency filter layer and the post-filter layer and is rotatably connected to a mounting plate. Multiple stirring blades are equidistantly installed on the outer side of the rotating rod. Multiple mounting rings are fixedly connected at equal intervals in the middle of the rotating rod. A fixing rod is fixedly connected to the top of the mounting ring. A cleaning brush is installed on the outer side of the fixing rod.
[0009] Through the above technical solution: after the device is started, the rotating rod drives the stirring blades to rotate, so that the air can fully contact the filter layer and ensure that particles of various sizes are effectively intercepted. The mounting ring in the middle of the rotating rod fixes the cleaning brush, which cleans the surface of the filter layer as the rod rotates, preventing blockage and maintaining the filtration performance.
[0010] As a further description of the above technical solution:
[0011] The right front end of the post-filter layer, the medium-efficiency filter layer, and the pre-filter layer are all fixedly connected with a female buckle, and a male buckle is installed on the right side of each female buckle. The right side of the female buckle engages with the left side of the male buckle.
[0012] The above technical solution allows for easy disassembly and replacement of each filter layer through the interlocking of the male and female buckles.
[0013] As a further description of the above technical solution:
[0014] A handle is installed on the top front side of the top cover, and screws are threaded to both the left and right ends of the handle.
[0015] The above technical solution facilitates the opening of the top cover by installing a handle.
[0016] As a further description of the above technical solution:
[0017] Both the air inlet pipe and the air outlet pipe are equipped with circular caps on opposite sides, and both circular caps are fixedly connected to short posts on opposite sides.
[0018] The above technical solution, through the installation of a circular cover, prevents dirt from entering when the device is not in use.
[0019] As a further description of the above technical solution:
[0020] A temperature measuring device is installed on the front left end of the housing.
[0021] The above technical solution allows the internal temperature of the device to be measured by installing a temperature measuring device.
[0022] As a further description of the above technical solution:
[0023] A slot plate is fixedly connected to the top of the middle section of the front side of the housing, and a notice board is installed inside the slot plate.
[0024] The above technical solution allows for the installation of notice boards to remind staff.
[0025] As a further description of the above technical solution:
[0026] A display screen is installed in the middle of the front side of the temperature measuring device.
[0027] The above technical solution allows the internal temperature of the device to be observed through the installation of a display screen.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, air enters the housing through the air intake pipe. The pre-filter layer first intercepts large particles and initially purifies the air. The air then enters the medium-efficiency filter layer, where nanofibers capture nano-sized particles to further improve air purity. The post-filter layer performs fine processing to remove residual impurities and odors, ensuring that the quality of the discharged gas meets the standards. The fan drives the airflow to improve filtration efficiency.
[0030] 2. In this utility model, after the device is started, the rotating rod drives the stirring blades to rotate, so that the air can fully contact the filter layer and ensure that particles of various sizes are effectively intercepted. The mounting ring in the middle of the rotating rod fixes the cleaning brush, which cleans the surface of the filter layer as the rod rotates, preventing clogging and maintaining the filtration performance. Attached Figure Description
[0031] Figure 1 This is a perspective view of a medium-efficiency filter cotton nanoparticle barrier proposed in this utility model;
[0032] Figure 2 This is a front view of a medium-efficiency filter cotton nanoparticle barrier proposed in this utility model;
[0033] Figure 3 This is a partial structural schematic diagram of a medium-efficiency filter cotton nanoparticle barrier proposed in this utility model.
[0034] Figure 4 This is a partial structural exploded view of a medium-efficiency filter cotton nanoparticle barrier proposed in this utility model.
[0035] Figure 5 This is a partial structural diagram of a medium-efficiency filter cotton nanoparticle barrier proposed in this utility model.
[0036] Legend:
[0037] 1. Housing; 2. Stirring mechanism; 201. Rotating rod; 202. Cleaning brush; 203. Stirring blade; 204. Mounting ring; 205. Fixing rod; 206. Mounting plate; 3. Top cover; 4. Handle; 5. Screw; 6. Rotating long rod; 7. Air outlet pipe; 8. Circular cover; 9. Fixing short column; 10. Notice board; 11. Slot plate; 12. Display screen; 13. Temperature measuring device; 14. Post-filter layer; 15. Fan; 16. Female buckle; 17. Female buckle; 18. Medium-efficiency filter layer; 19. Pre-filter layer; 20. Air inlet pipe. Detailed Implementation
[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0039] Reference Figure 1 , Figure 3 and Figure 4This utility model provides an embodiment of a medium-efficiency filter cotton nanoparticle barrier, comprising a housing 1, an air inlet pipe 20 connected to the front right side of the housing 1, an air outlet pipe 7 connected to the front left side of the housing 1, a fan 15 installed in the middle right side of the housing 1, a pre-filter layer 19 installed on the right side inside the housing 1, a medium-efficiency filter layer 18 installed in the middle inner side of the housing 1, a post-filter layer 14 installed on the left side inside the housing 1, a rotating rod 6 rotatably connected to the rear top of the housing 1, and a top cover 3 fixedly connected to the front side of the rotating rod 6. The installation of the post-filter layer 14 is used to improve the filtration effect and prevent air from being poorly filtered. The housing 1 is qualified. The internal part of the housing 1 is equipped with a stirring mechanism 2 for stirring the air. The right front end of the post-filter layer 14, the medium-efficiency filter layer 18 and the pre-filter layer 19 are all fixedly connected with a female buckle 17. The right side of the female buckle 17 is equipped with a male buckle 16. The right side of the female buckle 17 and the left side of the male buckle 16 are engaged. The side of the air inlet pipe 20 and the air outlet pipe 7 that are far apart are both equipped with a circular cover 8. The side of the circular cover 8 that is far apart is fixedly connected with a fixing short post 9. The installation of the circular cover 8 prevents dirt from entering when not in use. The top front side of the top cover 3 is equipped with a handle 4. The left and right ends of the handle 4 are threaded with screws 5.
[0040] Specifically, outside air flows into the internal space of the housing 1 through the intake pipe 20. During this process, the pre-filter layer 19 first begins to function, intercepting larger particulate impurities in the air, thus performing preliminary purification. The air passing through the pre-filter layer 19 has already removed most visible impurities. However, to further improve air quality, this air then enters the medium-efficiency filter layer 18. The nanofibers contained in the medium-efficiency filter layer 18, due to their extremely small pores and unique surface properties, can precisely capture nanoscale particles in the air. This layer's filtration enhances the purity of the air, ensuring that the tiny particles in the air are effectively removed. After the first two stages of filtration, the air continues to move forward and finally reaches the post-filter layer 14. The post-filter layer 14 performs final fine treatment on the air, removing any residual micro-impurities and odor molecules, ensuring that the quality of the gas discharged from the equipment fully meets the relevant standards and provides high-quality clean air for subsequent use scenarios. Throughout the process, the installation of the fan 15 propels the air to flow along a predetermined route, ensuring smooth airflow and improving the overall filtration efficiency. The installation of the handle 4 facilitates the opening of the top cover 3, and the engagement of the male buckle 16 and the female buckle 17 makes it easy to disassemble and replace each filter layer.
[0041] Reference Figure 1 , Figure 3 and Figure 5The stirring mechanism 2 includes a rotating rod 201, which is installed on the left side of the fan 15. The left side of the rotating rod 201 passes through the middle of the pre-filter layer 19, the medium-efficiency filter layer 18 and the post-filter layer 14 and is rotatably connected to a mounting plate 206. The installation of the mounting plate 206 makes the device more stable. Multiple stirring blades 203 are equidistantly installed on the outer side of the rotating rod 201. Multiple mounting rings 204 are fixedly connected at equal intervals in the middle of the rotating rod 201. A fixing rod 205 is fixedly connected to the top of the mounting ring 204. A cleaning brush 202 is installed on the outer side of the fixing rod 205. The installation of the mounting ring 204 facilitates the disassembly and replacement of the cleaning brush 202.
[0042] Specifically, when the device is started, the rotating rod 201 begins its rotational movement. Multiple stirring blades 203 are arranged at equal intervals on the outer side of the rotating rod 201. These stirring blades rotate synchronously with the movement of the rotating rod, allowing the air to make more comprehensive and in-depth contact with each filter layer within the device. This contact ensures that both larger dust particles and extremely small nanoparticles can be accurately intercepted by the corresponding filter layers in the device. Simultaneously, multiple mounting rings 204 are fixed at equal intervals in the middle of the rotating rod 201. With the installation of the mounting rings 204, a fixing rod 205 is connected to the top of each mounting ring. A cleaning brush 202 is installed on the outside of the fixing rod 205. As the rotating rod 201 continues to rotate, the cleaning brush 202 also begins to clean. As air flows through each filter layer, the cleaning brush 202 will continuously sweep across the surface of the filter layer, removing the dust and impurities accumulated on the surface of the pre-filter layer 19, the medium-efficiency filter layer 18, and the post-filter layer 14, thus avoiding the problem of filter layer pore blockage and ensuring that each filter layer can continuously maintain its filtration performance.
[0043] Reference Figure 1 , Figure 2 and Figure 3 A temperature measuring device 13 is installed on the front left side of the housing 1. A slot plate 11 is fixedly connected to the top of the front middle part of the housing 1. A notice board 10 is installed inside the slot plate 11. A display screen 12 is installed on the front middle part of the temperature measuring device 13.
[0044] Specifically, the installation of the notice board 10 facilitates reminders to staff, and the installation of the temperature measuring device 13 and the display screen 12 allows the internal temperature of the device to be observed.
[0045] Working principle: Outside air flows into the interior of the housing 1 through the air inlet pipe 20. At this time, the pre-filter layer 19 plays a role in blocking larger particulate impurities in the air, thus initially purifying the air. Then, the air that has passed the initial filtration enters the medium-efficiency filter layer 18. Because this layer contains nanofibers, which have extremely small pores and special surface properties, they can accurately capture nano-sized particles in the air, improving the purity of the air. Finally, the air reaches the post-filter layer 14. This layer further refines the air after the previous two filtration processes, removing residual tiny impurities and odor molecules, so that the quality of the gas discharged from the equipment fully meets the relevant standards, providing clean air for subsequent use scenarios. In the entire air purification process, the fan 15 pushes the air to flow along a predetermined route, improving the overall filtration efficiency.
[0046] When the device is turned on, the rotating rod 201 begins to rotate, and the multiple stirring blades 203 arranged at equal intervals on its outer side rotate synchronously at high speed, allowing the air to have more comprehensive and in-depth contact with each filter layer. This ensures that both large dust particles and nano-sized microparticles can be accurately intercepted and captured by the corresponding filter layers. At the same time, multiple mounting rings 204 are fixed at equal intervals in the middle of the rotating rod 201. Through the installation of the mounting rings 204, a fixing rod 205 is firmly connected to the top of each mounting ring 204. A cleaning brush 202 is installed on the outer side of the fixing rod 205. As the rotating rod 201 continues to rotate, the cleaning brush 202 begins to work. As the air continuously flows through each filter layer, it continuously sweeps across the surface of the filter layer, removing the dust and impurities accumulated on the surface of the pre-filter layer 19, the medium-efficiency filter layer 18, and the post-filter layer 14. This effectively avoids the problem of pore blockage and ensures that each filter layer can maintain its filtration performance.
[0047] 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 medium efficiency filter cotton nanoscale particle barrier comprising a housing (1) characterised in that: The right side of the front end of the shell (1) is communicated with an air inlet pipe (20), the left side of the front end of the shell (1) is communicated with an air outlet pipe (7), the right side of the middle of the shell (1) is installed with a fan (15), the inside right side of the shell (1) is installed with a pre-filter layer (19), the inside middle of the shell (1) is provided with a medium-efficiency filter layer (18), the inside left side of the shell (1) is installed with a rear filter layer (14), the top rear side of the shell (1) is rotatably connected with a rotating long rod (6), the front side of the rotating long rod (6) is fixedly connected with a top cover (3), the inside of the shell (1) is installed with a stirring mechanism (2), and the stirring mechanism (2) is used for stirring air.
2. A mesoporous filter according to claim 1, wherein: The stirring mechanism (2) comprises a rotating rod (201), the rotating rod (201) is installed on the left side of the fan (15), the left side of the rotating rod (201) penetrates the middle of the pre-filter layer (19), the medium-efficiency filter layer (18) and the rear filter layer (14) in sequence and is rotatably connected with a mounting plate (206), a plurality of stirring blades (203) are equidistantly installed on the outside of the rotating rod (201), a plurality of mounting rings (204) are equidistantly fixedly connected on the middle of the rotating rod (201), a fixed rod (205) is fixedly connected on the top of the mounting ring (204), and a cleaning brush (202) is installed on the outside of the fixed rod (205).
3. A mesoporous filter according to claim 1, wherein: The right side of the top end of the rear filter layer (14), the medium-efficiency filter layer (18) and the pre-filter layer (19) is fixedly connected with a female buckle (17), the right side of the female buckle (17) is installed with a male buckle (16), and the right side of the female buckle (17) is clamped with the left side of the male buckle (16).
4. A mesoporous filter according to claim 1, wherein: The top side of the front end of the top cover (3) is installed with a handle (4), and the left and right ends of the handle (4) are threadedly connected with screws (5).
5. A mesoporous filter according to claim 1, wherein: The side away from the air inlet pipe (20) and the air outlet pipe (7) is installed with a circular cover (8), and the side away from the circular cover (8) on both sides is fixedly connected with a fixed short column (9).
6. A mesoporous filter according to claim 1, wherein: The front side of the left end of the shell (1) is installed with a temperature measuring device (13).
7. A mesoporous filter according to claim 1, wherein: The front side of the middle of the shell (1) is fixedly connected with a clamping groove plate (11), and the inside of the clamping groove plate (11) is installed with a signboard (10).
8. A mesoporous filter cotton nanoscale particle barrier according to claim 6, wherein: The front side of the middle of the temperature measuring device (13) is installed with a display screen (12).
Citation Information
Patent Citations
Nanofiber material filtering device
CN220860931U