Air filtering device of compressed air pump

By introducing a cleaning brush and a rotating collection system into the air filtration device, the problem of filter cartridge clogging was solved, enabling automatic dust cleaning and reducing the labor intensity of workers and the frequency of equipment downtime for maintenance.

CN224167181UActive Publication Date: 2026-04-28NANJING HUAWEI MEDICAL EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HUAWEI MEDICAL EQUIP
Filing Date
2025-05-15
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The filter cartridges of existing air filtration devices are prone to clogging, requiring frequent disassembly and cleaning, which affects the use of air pumps and increases the workload of workers.

Method used

An air filtration device with a cleaning brush was designed. The cleaning brush rotates and cleans the surface of the filter cartridge by the movement of the air pump when it is turned on and off, and the dust is collected by a turntable, reducing the frequency of manual cleaning.

Benefits of technology

It enables automatic cleaning of dust on the surface of the filter cartridge, reducing the workload of workers and preventing dust accumulation from affecting the working efficiency of the air pump.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air filtering device of a compressed air pump, which relates to the technical field of air filtering, and comprises a cylinder body, a placing plate is arranged in the cylinder body, a filter cartridge is arranged at the top of the placing plate, a plurality of cleaning brushes are arranged on the outer side of the filter cartridge, and a plurality of air inlets are formed in the cleaning brushes. One side of each cleaning brush is attached to the filter cylinder, a limiting cylinder is fixedly connected to the bottom of the containing plate, a plurality of sliding grooves are formed in the outer side of the limiting cylinder in a circumferential array mode, a mounting plate is arranged on the outer side of the bottom of the limiting cylinder, and a plurality of rotating wheels are rotationally connected to the inner side of the mounting plate. When the air pump is turned on and off, the limiting cylinder moves up and down and drives the rotating wheel to move through the sliding groove, so that the mounting plate rotates to drive the cleaning brushes at the top to clean the surface of the filter cylinder, the labor burden of workers is reduced, and the filter cylinder does not need to be frequently manually disassembled for manual cleaning.
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Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, specifically an air filtration device for a compressed air pump. Background Technology

[0002] A compressed air pump is a device that converts mechanical energy into gas pressure energy. It is mainly used to compress air and store or transport it to other equipment. Particulate impurities in the air are extremely harmful to high-speed compressed air pumps, as they can wear down cylinders and pistons or block air passages. Therefore, it is necessary to install an air filter at the air intake to filter impurities in the air.

[0003] Existing air filtration devices typically use filter cartridges for filtration. As the filter cartridges are used over time, impurities in the air gradually accumulate on their surface, leading to a decrease in filtration efficiency. Therefore, the filtration device needs to be cleaned frequently. The fixed structure of the filter cartridges is relatively complex, and a lot of dust accumulates on their surface, making cleaning and replacement inconvenient for workers. When the air pump operates in a dusty environment or for extended periods, the air pump also needs to be stopped to clean the clogged filter cartridges, affecting the operation of the air pump. Utility Model Content

[0004] The purpose of this invention is to provide an air filtration device for a compressed air pump to solve the problem in the prior art where the filter cartridge is easily clogged and requires frequent disassembly and cleaning by workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air filtration device for a compressed air pump, comprising a cylinder, a placement plate inside the cylinder, a filter cartridge placed on top of the placement plate, and multiple cleaning brushes arranged in a circumferential array on the outer side of the filter cartridge, each cleaning brush having one side in contact with the filter cartridge. A limiting cylinder is fixedly connected to the bottom of the placement plate, and multiple sliding grooves are arranged in a circumferential array on the outer side of the limiting cylinder. An installation plate is provided on the outer side of the bottom of the limiting cylinder, and multiple rotating wheels are rotatably connected to the inner side of the installation plate. One end of each of the rotating wheels is rolled and connected to the inside of the sliding groove. When the air pump is turned on or off, the limiting cylinder moves up and down, driving the rotating wheels through the sliding grooves, thereby causing the rotating wheels to rotate the installation plate. At this time, the installation plate drives the multiple cleaning brushes on its top to rotate and clean the surface of the filter cartridge.

[0006] Preferably, a transmission ring is provided inside the cylinder, and a support rod is fixedly connected between the bottom of the transmission ring and the inner wall of the cylinder. The mounting plate is rotatably connected to the top of the transmission ring, and a plurality of first gears and a plurality of second gears are rotatably connected to the bottom of the mounting plate. The plurality of first gears are respectively meshed with the plurality of second gears.

[0007] Preferably, the inner side of the transmission ring is provided with locking teeth that are adapted to multiple first gears. The multiple first gears are all connected to the transmission ring through the locking teeth. The multiple cleaning brushes rotate on the top of the mounting plate. The bottom ends of the multiple cleaning brushes are respectively fixedly connected to multiple second gears. When the mounting plate rotates, the first gears rotate under the action of the locking teeth of the transmission ring.

[0008] Preferably, a first air outlet pipe is fixedly connected to the bottom of the placement plate, a second air outlet pipe is provided at the bottom of the first air outlet pipe, the bottom end of the first air outlet pipe passes through the second air outlet pipe and is slidably connected to the second air outlet pipe, a collection plate is fixedly connected to the outside of the second air outlet pipe, a spring is fixedly connected to the top of the collection plate, and the top of the spring is fixedly connected to the placement plate.

[0009] Preferably, a turntable is provided at the bottom of the cylinder, the turntable is rotatably connected between the spring and the cylinder, a baffle is fixedly connected to the inner side of the turntable, a collection groove adapted to the baffle is opened at the top of the collection plate, the baffle is slidably connected to the inside of the collection groove, a scraper is fixedly connected to one side of the baffle, the bottom of the scraper is in contact with the inclined surface at the top of the collection plate, a collection port is opened at the bottom of the collection port, and a collection box adapted to the collection port is provided at the bottom of the collection port. Workers can quickly collect the dust swept down inside the cylinder by rotating the turntable without stopping the machine to disassemble the filter cartridge for cleaning, thus reducing the labor burden of workers.

[0010] Preferably, a fixing plate is fixedly connected to the top of the inner cylinder, and the tops of the plurality of cleaning brushes are rotatably connected to the fixing plate. A pressure plate is provided on the top of the filter cartridge, and two limiting rods are fixedly connected to the top of the placement plate. The top ends of the limiting rods penetrate the pressure plate and are slidably connected to the pressure plate. Nuts are threaded onto the top ends of the limiting rods, and the filter cartridge is fixed between the placement plate and the limiting rods by the nuts.

[0011] Preferably, a top cover is threaded to the top of the cylinder, and a push rod is fixedly connected to the top of the pressure plate. The top end of the push rod passes through the top cover and is slidably connected to the top cover. Workers can also pull the push rod to move the filter cartridge inside the cylinder up and down, thereby causing the cleaning brush to rotate and clean the filter cartridge, preventing dust on the surface of the filter cartridge from not being cleaned in time when working for a long time.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, when the air pump is turned on or off, the limit cylinder moves up and down through the slide groove and the rotating wheel, thereby causing the rotating wheel to drive the mounting plate to rotate. At this time, the mounting plate drives the multiple cleaning brushes on its top to rotate and clean the surface of the filter cartridge. Through the suction of the air pump and the elasticity of the spring, the device cleans the filter cartridge once when it is turned on or off, preventing dust accumulation caused by untimely cleaning of the filter cartridge, which would affect the operation of the air pump.

[0014] 2. With this application, workers can quickly collect dust inside the cylinder by using a turntable, thus eliminating the need for frequent disassembly of the filter cartridge for cleaning and reducing the workload of workers. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a cross-sectional view of the mounting plate structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the bottom structure of the mounting plate of this utility model;

[0019] Figure 5 This is a schematic diagram of the limiting cylinder structure of this utility model.

[0020] The following are the labels in the diagram: 1. Cylinder; 2. Placement plate; 3. Filter cartridge; 4. Cleaning brush; 5. Limiting cylinder; 6. Slide groove; 7. Mounting plate; 8. Rotary wheel; 9. Transmission ring; 10. Support rod; 11. First gear; 12. Second gear; 13. First air outlet pipe; 14. Second air outlet pipe; 15. Collection plate; 16. Spring; 17. Turntable; 18. Baffle; 19. Scraper; 20. Fixing plate; 21. Pressure plate; 22. Limiting rod; 23. Nut; 24. Push rod; 25. Top cover; 26. Collection box. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0022] Example: Figure 1 - Figure 5As shown, this utility model provides a technical solution for an air filtration device for a compressed air pump, including a cylinder 1, a placement plate 2 inside the cylinder 1, a filter cartridge 3 on the top of the placement plate 2, and multiple cleaning brushes 4 arranged in a circumferential array on the outer side of the filter cartridge 3, with one side of each cleaning brush 4 in contact with the filter cartridge 3. A limiting cylinder 5 is fixedly connected to the bottom of the placement plate 2, and multiple sliding grooves 6 are arranged in a circumferential array on the outer side of the limiting cylinder 5. An installation plate 7 is provided on the outer side of the bottom of the limiting cylinder 5, and multiple rotating wheels 8 are rotatably connected to the inner side of the installation plate 7. One end of each rotating wheel 8 is rolled and connected to the inside of the sliding groove 6. When the air pump is turned on or off, the limiting cylinder 5 moves up and down, driving the rotating wheels 8 through the sliding grooves 6, thereby causing the rotating wheels 8 to drive the installation plate 7 to rotate. At this time, the installation plate 7 drives the multiple cleaning brushes 4 on its top to rotate and clean the surface of the filter cartridge 3.

[0023] A transmission ring 9 is provided inside the cylinder 1. A support rod 10 is fixedly connected between the bottom of the transmission ring 9 and the inner wall of the cylinder 1. A mounting plate 7 is rotatably connected to the top of the transmission ring 9. Multiple first gears 11 and multiple second gears 12 are rotatably connected to the bottom of the mounting plate 7. The multiple first gears 11 are respectively meshed with the multiple second gears 12.

[0024] The inner side of the transmission ring 9 is provided with a locking tooth that is adapted to multiple first gears 11. Multiple first gears 11 are connected to the transmission ring 9 through the locking tooth. Multiple cleaning brushes 4 rotate on the top of the mounting plate 7. The bottom ends of multiple cleaning brushes 4 are fixedly connected to multiple second gears 12 respectively. When the mounting plate 7 rotates, the first gears 11 rotate under the action of the locking tooth of the transmission ring 9.

[0025] The bottom of the placement plate 2 is fixedly connected to a first air outlet pipe 13, and a second air outlet pipe 14 is provided at the bottom of the first air outlet pipe 13. The bottom end of the first air outlet pipe 13 passes through the second air outlet pipe 14 and is slidably connected to the second air outlet pipe 14. A collection plate 15 is fixedly connected to the outside of the second air outlet pipe 14, and a spring 16 is fixedly connected to the top of the collection plate 15. The top of the spring 16 is fixedly connected to the placement plate 2.

[0026] A turntable 17 is provided at the bottom of the cylinder 1. The turntable 17 is rotatably connected between the spring 16 and the cylinder 1. A baffle 18 is fixedly connected to the inner side of the turntable 17. A collection groove adapted to the baffle 18 is opened at the top of the collection plate 15. The baffle 18 is slidably connected to the inside of the collection groove. A scraper 19 is fixedly connected to one side of the baffle 18. The bottom of the scraper 19 is in contact with the top inclined surface of the collection plate 15. A collection port is opened at the bottom of the collection port. A collection box 26 adapted to the collection port is provided at the bottom of the collection port. Workers can quickly collect the dust swept down inside the cylinder 1 by rotating the turntable 17 without stopping the machine to disassemble the filter cartridge 3 for cleaning, thus reducing the labor burden of workers.

[0027] A fixing plate 20 is fixedly connected to the top of the inner cylinder 1. The tops of multiple cleaning brushes 4 are rotatably connected to the fixing plate 20. A pressure plate 21 is provided on the top of the filter cartridge 3. Two limiting rods 22 are fixedly connected to the top of the placement plate 2. The tops of the limiting rods 22 all pass through the pressure plate 21 and are slidably connected to the pressure plate 21. Nuts 23 are threaded to the tops of the limiting rods 22. The filter cartridge 3 is fixed between the placement plate 2 and the limiting rods 22 by the nuts 23.

[0028] The top of the cylinder 1 is threadedly connected to a top cover 25, and the top of the pressure plate 21 is fixedly connected to a push rod 24. The top of the push rod 24 passes through the top cover 25 and is slidably connected to the top cover 25. Workers can also pull the push rod 24 to drive the filter cartridge 3 inside the cylinder 1 to move up and down, thereby causing the cleaning brush 4 to rotate to clean the filter cartridge 3, preventing the dust on the surface of the filter cartridge 3 from not being cleaned in time when the working time is long.

[0029] When this utility model is in use: the bottom of the second air outlet pipe 14 is connected to the air inlet of the compressed air pump, and the air enters the interior of the cylinder 1 through the through hole on one side of the top of the cylinder 1. After being filtered by the filter cartridge 3, the air is sucked away from the second air outlet pipe 14.

[0030] The first air outlet duct 13 is slidably connected to the inside of the second air outlet duct 14. Before operation, the placement plate 2, under the elastic force of the spring 16, lifts the filter cartridge 3. When the air pump starts working, the inside of the second air outlet duct 14 is under negative pressure. Air can only enter the second air outlet duct 14 after being filtered by the filter cartridge 3. The air pump generates suction on the filter cartridge 3. At this time, the first air outlet duct 13, under the suction of the air pump, drives the placement plate 2 at its top to move downwards. The rotating wheel 8 is rotatably connected to the sliding groove 6 on the outside of the placement plate 2. The mounting plate 7 is rotatably connected to... At the top of the transmission ring 9, when the placement plate 2 moves downward, the inclined surface of the slide groove 6 pushes the rotating wheel 8 to move along the inclined surface of the slide groove 6, thereby causing the rotating wheel 8 to drive the mounting plate 7 to rotate counterclockwise at the top of the transmission ring 9. The first gear 11 meshes with the transmission ring 9. When the mounting plate 7 rotates, it drives the first gear 11 to revolve. The first gear 11 rotates under the action of the tooth surface of the transmission ring 9. At this time, the first gear 11 drives the cleaning brush 4 to rotate through the second gear 12 to clean the surface of the filter cartridge 3. When the device stops working, the placement plate 2 returns to its original position under the action of the spring 16, and at the same time drives the mounting plate 7 and the cleaning brush 4 on the top of the mounting plate 7 to rotate again to clean the filter cartridge 3. The surface of the filter cartridge 3 is cleaned by the cleaning brush 4 every time the air pump starts and ends, so as to prevent too much dust on the surface of the filter cartridge 3 from affecting the filtration effect of the filter cartridge 3 and increasing the energy consumption of the device. The dust swept off the surface of the filter cartridge 3 falls into the top of the collection plate 15. The scraper 19 is set at an angle and fits against the collection plate 15. The worker can manually rotate it periodically. The turntable 17 rotates and collects the dust falling on the top of the collection plate 15 through the baffle 18 and scraper 19. The dust on the top of the collection plate 15 is scraped along the inclined surface of the scraper 19 towards the front of the baffle 18. When the baffle 18 moves above the collection box 26, the dust falls into the collection box 26 through the collection port, making it convenient for workers to handle the dust. The dust inside the cylinder 1 is cleaned and collected by the cleaning brush 4 and the scraper 19, so that workers do not need to disassemble and clean the cleaning brush 4, reducing the labor burden of workers.

[0031] A push rod 24 is provided on the top of the pressure plate 21. When the machine is in a dusty working environment and the working time is long, the push rod 24 can be manually pulled to make the filter cartridge 3 inside the cylinder 1 move up and down, thereby driving the cleaning brush 4 to revolve and rotate to clean the filter cartridge 3 and prevent the filter cartridge 3 from being blocked and affecting the operation of the air pump.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An air filtration device for a compressed air pump, comprising a cylinder (1), characterized in that: The cylinder (1) is provided with a placement plate (2) inside. A filter cartridge (3) is placed on the top of the placement plate (2). Multiple cleaning brushes (4) are arranged in a circular array on the outside of the filter cartridge (3). One side of each of the multiple cleaning brushes (4) is in contact with the filter cartridge (3). A limiting cylinder (5) is fixedly connected to the bottom of the placement plate (2). Multiple sliding grooves (6) are arranged in a circular array on the outside of the limiting cylinder (5). An installation plate (7) is provided on the bottom outside of the limiting cylinder (5). Multiple rotating wheels (8) are rotatably connected to the inside of the installation plate (7). One end of each of the multiple rotating wheels (8) is rotatably connected to the inside of the sliding groove (6).

2. The air filtration device for a compressed air pump according to claim 1, characterized in that: The cylinder (1) is provided with a transmission ring (9) inside. A support rod (10) is fixedly connected between the bottom of the transmission ring (9) and the inner wall of the cylinder (1). The mounting plate (7) is rotatably connected to the top of the transmission ring (9). Multiple first gears (11) and multiple second gears (12) are rotatably connected to the bottom of the mounting plate (7). The multiple first gears (11) are respectively meshed with the multiple second gears (12).

3. The air filtration device for a compressed air pump according to claim 2, characterized in that: The inner side of the transmission ring (9) is provided with a locking tooth that is compatible with a plurality of first gears (11). The plurality of first gears (11) are meshed with the transmission ring (9) through the locking tooth. The plurality of cleaning brushes (4) rotate on the top of the mounting plate (7). The bottom ends of the plurality of cleaning brushes (4) are respectively fixedly connected to a plurality of second gears (12).

4. The air filtration device for a compressed air pump according to claim 1, characterized in that: The bottom of the placement plate (2) is fixedly connected to a first air outlet pipe (13), and a second air outlet pipe (14) is provided at the bottom of the first air outlet pipe (13). The bottom end of the first air outlet pipe (13) passes through the second air outlet pipe (14) and is slidably connected to the second air outlet pipe (14). A collection plate (15) is fixedly connected to the outside of the second air outlet pipe (14), and a spring (16) is fixedly connected to the top of the collection plate (15). The top of the spring (16) is fixedly connected to the placement plate (2).

5. The air filtration device for a compressed air pump according to claim 4, characterized in that: The bottom of the cylinder (1) is provided with a turntable (17), which is rotatably connected between the spring (16) and the cylinder (1). A baffle (18) is fixedly connected to the inner side of the turntable (17). The top of the collecting plate (15) is provided with a collecting groove that matches the baffle (18). The baffle (18) is slidably connected to the inside of the collecting groove. A scraper (19) is fixedly connected to one side of the baffle (18). The bottom of the scraper (19) is in contact with the top inclined surface of the collecting plate (15). The bottom of the collecting plate (15) is provided with a collecting port. A collecting box (26) that matches the collecting port is provided at the bottom of the collecting port.

6. The air filtration device for a compressed air pump according to claim 3, characterized in that: A fixing plate (20) is fixedly connected to the top of the inner cylinder (1). The tops of the multiple cleaning brushes (4) are rotatably connected to the fixing plate (20). A pressure plate (21) is provided on the top of the filter cylinder (3). Two limiting rods (22) are fixedly connected to the top of the placement plate (2). The tops of the limiting rods (22) penetrate the pressure plate (21) and are slidably connected to the pressure plate (21). Nuts (23) are threadedly connected to the tops of the limiting rods (22).

7. The air filtration device for a compressed air pump according to claim 6, characterized in that: The top of the cylinder (1) is threadedly connected to a top cover (25), and the top of the pressure plate (21) is fixedly connected to a push rod (24). The top end of the push rod (24) passes through the top cover (25) and is slidably connected to the top cover (25).