Portable air purifier
By using a modular design and adjustable stand, the portable air purifier solves the problems of large size and poor purification effect of traditional air purifiers, and achieves portable and efficient air purification and cooling functions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHANGPIN MECHANICAL & ELECTRICAL ENG CO
- Filing Date
- 2025-04-02
- Publication Date
- 2026-05-19
AI Technical Summary
Traditional air purifiers are bulky and inconvenient to carry. Even when miniaturized, the filter area is small and the fan airflow is insufficient, making it difficult to meet the purification needs of people who move around frequently.
A portable air purifier has been designed, which can be easily disassembled and assembled through the threaded connection between the top and base of the purifier. The filter cylinders can be spliced according to needs to increase the filtration area. The bracket is adjustable in angle and uses telescopic rods and rubber blocks to form stable support, making it suitable for different scenarios.
It achieves efficient air filtration and fan functions in portable air purifiers, adapts to multiple usage scenarios, extends filter life, improves purification effect, and provides cooling effect in hot weather.
Smart Images

Figure CN224261889U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purification technology, specifically to a portable air purifier. Background Technology
[0002] In today's fast-paced life, people's activities are increasingly widespread, and whether commuting, working, or traveling, they are paying more and more attention to the air quality of their surroundings. Air pollution is becoming increasingly serious, not only outdoors but also indoors, where various pollutants frequently invade, such as PM2.5, dust, pollen, odors, formaldehyde and other pollutants from renovations, as well as bacteria, allergens, and other microorganisms. These pollutants seriously threaten human health, especially for people with respiratory diseases, making clean air an urgent need.
[0003] Traditional air purifiers are mainly categorized into household, commercial, industrial, and building types. However, these purifiers generally suffer from a large size, making them inconvenient to carry and only suitable for relatively fixed locations such as homes and offices. For people who frequently travel or need to move around often, traditional air purifiers cannot meet their need for air purification anytime, anywhere. Although some smaller air purifiers have appeared on the market in an attempt to solve the portability problem, their limited internal space, smaller filter area, and insufficient fan airflow significantly reduce their purification effect, making it difficult to achieve ideal air purification standards. Utility Model Content
[0004] This invention provides a portable air purifier to solve the problems existing in the background art.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A portable air purifier includes a purifier top base, a bracket fixedly connected to the top of the purifier top base, and a plurality of filter cylinders disposed at the bottom of the purifier top base, with a base threadedly connected to the bottom of each filter cylinder.
[0007] A further improvement of the present invention is that the filter cylinder includes a folded filter screen, a fixing seat 1 is fixedly connected to the upper part of the folded filter screen, and a fixing seat 2 is fixedly connected to the bottom of the folded filter screen.
[0008] A further improvement of the present invention is that a threaded seat is fixedly connected to the bottom of the base, and the inner wall of the threaded seat is threadedly connected to the outer wall of the fixing seat of one of the filter cylinders.
[0009] A further improvement of the present invention is that: the top base of the purifier includes a fixed shell, the fixed shell has a ventilation groove that runs vertically through the middle, the inner wall of the ventilation groove is fixedly connected to a support frame, the top surface of the support frame is fixedly connected to a motor, the output shaft of the motor is fixedly connected to a fan blade, the lower part of the ventilation groove of the fixed shell is fixedly connected to a card seat, and the outer wall of the card seat is threadedly connected to the inner wall of a fixed seat on the filter cylinder.
[0010] A further improvement of this utility model is that the diameter of the threaded seat is the same as the diameter of the fixed seat, and multiple filter cylinders can be threaded together by tightening the fixed seat at the bottom of the filter cylinder with the fixed seat.
[0011] A further improvement of the present invention is that the bracket includes a U-shaped seat, and telescopic rods are slidably connected to the inner walls of both ends of the U-shaped seat. A rubber block is fixedly connected to the other end of the telescopic rod, and a support base is fixedly connected to the bottom of the two rubber blocks. Threaded holes are opened on the inner side of the U-shaped seat, and a fixing mechanism is threadedly connected to the inner wall of the two threaded holes.
[0012] A further improvement of the present invention is that the fixing mechanism includes a square tube, a square column is slidably connected to the inner wall of the square tube, and a threaded rod is fixedly connected to the ends of the square tube and the square column that are far apart from each other. The threaded rod is threadedly connected to the inner wall of the threaded hole of the U-shaped seat, and the end of the threaded rod extending into the U-shaped seat is in close contact with the outer wall of the telescopic rod.
[0013] 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:
[0014] 1. This utility model provides a portable air purifier. The purifier can be directly threaded onto the base by the slot at the bottom of the top seat. This makes the overall size very small and easy to carry. When needed, the threads of the top seat and the base can be removed to remove the required number of filter cartridges. The filter cartridges can be spliced together. Splicing multiple filter cartridges together extends the filtration area of the folded filter, prolongs the filter life, improves the air filtration effect, and also makes it easier to replace the filter cartridges.
[0015] 2. This utility model provides a portable air purifier, which uses a telescopic rod and one corner of the base to form a stable triangular shape with the desktop for support. At the same time, since the rubber block is an elastic material, it can be deformed at the angle between the support base and the telescopic rod, so that the support base can support the desktop more stably. This allows the device to purify the air while adjusting the angle to achieve the effect of blowing air and cooling the desktop in hot weather. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the structure of this utility model after being exploded.
[0018] Figure 3 This is a three-dimensional schematic diagram of the top base of the air purifier according to the present invention;
[0019] Figure 4 This is a three-dimensional schematic diagram of the structural fixing shell of this utility model;
[0020] Figure 5 This is a three-dimensional schematic diagram of the structural support of this utility model;
[0021] Figure 6 This is a three-dimensional schematic diagram of the structural fixing mechanism of this utility model.
[0022] In the diagram: 1. Air purifier top; 2. Filter cylinder; 3. Base; 4. Bracket; 21. Folded filter; 22. Fixing seat one; 23. Fixing seat two; 31. Threaded seat; 11. Fixing shell; 12. Support frame; 13. Motor; 14. Card slot; 15. Fan blade; 41. U-shaped seat; 42. Telescopic rod; 43. Support seat; 44. Rubber block; 45. Fixing mechanism; 451. Square cylinder; 452. Square column; 453. Threaded rod. Detailed Implementation
[0023] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:
[0024] like Figure 1-2 As shown, this utility model provides a portable air purifier, comprising a top base 1, a bracket 4 fixedly connected to the top of the top base 1, and several filter cylinders 2 disposed at the bottom of the top base 1. A base 3 is threadedly connected to the bottom of each filter cylinder 2. Each filter cylinder 2 includes a folded filter 21, a fixing seat 22 fixedly connected to the top of the folded filter 21, and a fixing seat 23 fixedly connected to the bottom of the folded filter 21. A threaded seat 31 is fixedly connected to the bottom of the base 3, and the inner wall of the threaded seat 31 is connected to... The filter cartridge 2 is connected to the outer wall of the fixing seat 23 of the middle filter cartridge 2 by thread. It can be directly threaded to the threaded seat 31 on the base 3 through the card seat 14 at the bottom of the top seat 1 of the purifier. At this time, the overall volume becomes very small and easy to carry. When needed, the threads of the top seat 1 and the base 3 of the purifier can be removed, and the number of filter cartridges 2 can be taken out as needed. The filter cartridges 2 can be spliced together. After multiple filter cartridges 2 are spliced together, the filtration area of the folded filter 21 is extended, the service life of the filter is extended, and the air filtration effect is improved.
[0025] like Figure 3-4 As shown, this utility model provides a portable air purifier technical solution: Preferably, the purifier top base 1 includes a fixed shell 11, a ventilation groove extending vertically through the middle of the fixed shell 11, a support frame 12 fixedly connected to the inner wall of the ventilation groove, a motor 13 fixedly connected to the middle of the top surface of the support frame 12, a fan blade 15 fixedly connected to the output shaft of the motor 13, a retaining seat 14 fixedly connected to the lower part of the ventilation groove of the fixed shell 11, the outer wall of the retaining seat 14 being threadedly connected to the inner wall of the fixed seat 22 on the filter cylinder 2, and the diameter of the threaded seat 31 being the same as the diameter of the fixed seat 22. Multiple filter cylinders 2 can be screwed together by fixing the upper filter cylinder 2 to the bottom fixing seat 23 through fixing seat 1 22. Fixing seat 1 22 and fixing seat 2 23 are respectively connected to the top seat 1 and the base 3 of the purifier. At this time, the device can be placed vertically on the table or tabletop. The internal drive battery of the top seat 1 of the purifier provides power to the motor 13, which drives the fan blade 15 to blow air quickly. The air needs to be filtered by the folding filter 21 before entering the interior, and then blown out by the fan blade 15 to achieve air filtration, thereby achieving the effect of convenient portability and rapid air purification.
[0026] like Figure 1-5As shown, this utility model provides a portable air purifier technical solution: Preferably, the bracket 4 includes a U-shaped base 41, with telescopic rods 42 slidably connected to the inner walls of both ends of the U-shaped base 41, and rubber blocks 44 fixedly connected to the other ends of the telescopic rods 42. Support seats 43 are fixedly connected to the bottoms of the two rubber blocks 44. Threaded holes are opened on the inner side of the U-shaped base 41, and fixing mechanisms 45 are threadedly connected to the inner walls of the two threaded holes. The fixing mechanism 45 includes a square cylinder 451, with a square column 452 slidably connected to the inner wall of the square cylinder 451. Threaded rods 453 are fixedly connected to the ends of the square cylinder 451 and the square column 452 that are far apart from each other. The threaded rods 453 are threadedly connected to the inner walls of the threaded holes of the U-shaped base 41, and the end of the threaded rods 453 extending into the U-shaped base 41 is tightly attached to the outer wall of the telescopic rods 42. The bracket 4 at the top of the purifier top seat 1 can support the device to be placed horizontally on a table, and can be used as a desktop fan by blowing air through the fan blades 15. The device cools the air while purifying it. The telescopic rod 42 can be pulled out from inside the U-shaped base 41 to adjust the angle of the device when placed horizontally. Once adjusted to the appropriate position, the square cylinder 451 and square column 452 can be rotated. Since the telescopic rods are square, rotating one of them allows for simultaneous rotation. The threaded rods 453 on both sides are threaded into the U-shaped base 41 with opposite thread directions. The two threaded rods 453 move in opposite directions into the U-shaped base 41. The telescopic compression of the square cylinder 451 and square column 452 onto the surface of the telescopic rod 42 secures the U-shaped base 41 and the telescopic rod 42. The telescopic rod 42 and one corner of the base 3 form a stable triangular support with the tabletop. Simultaneously, because the rubber block 44 is an elastic material, it is supported by the support base 43, allowing for deformation at the angle between it and the telescopic rod 42, thus providing more stable support on the tabletop.
[0027] The working principle of this device will be explained in detail below.
[0028] like Figure 1-6As shown, the mounting bracket 14 at the bottom of the purifier top base 1 can be directly threaded onto the threaded seat 31 on the base 3. This makes the overall size very small and easy to carry. When needed, the threads of the purifier top base 1 and base 3 can be removed, and the required number of filter cartridges 2 can be taken out and spliced together. Splicing multiple filter cartridges 2 extends the filtration area of the folded filter 21, prolongs the filter's lifespan, improves air filtration efficiency, and also facilitates filter cartridge 2 replacement. This is achieved through the fixing seat 22 and the fixing base... The second part (23) is connected to the top base 1 and the base 3 of the purifier, respectively. The device can then be placed vertically on a table or countertop. The internal battery of the top base 1 powers the motor 13, driving the fan blades 15 to blow air quickly. The incoming air must pass through the folding filter 21 before entering the interior, and then be blown out by the fan blades 15, achieving air filtration. This results in convenient portability and rapid air purification. Simultaneously, the bracket 4 on top of the top base 1 can support the device horizontally on a table, allowing it to be used as a tabletop table. The fan blows air to cool the air and purifies it simultaneously. The telescopic rod 42 can be pulled out from inside the U-shaped base 41 to adjust the angle of the device when placed horizontally. Once adjusted to a suitable position, the square cylinder 451 and square column 452 can be rotated. Since the telescopic rods are square, rotating one of them allows for simultaneous rotation. The threaded rods 453 on both sides are threaded into the U-shaped base 41 with opposite thread directions. The two threaded rods 453 move in opposite directions into the U-shaped base 41. The telescopic rods 451 and 452, through their extension and retraction, press against the surface of the telescopic rod 42, fixing it to the U-shaped base 41 and the telescopic rod 42. The telescopic rod 42 and one corner of the base 3 form a stable triangular support with the desktop. Simultaneously, because the rubber block 44 is an elastic material, it is supported by the support base 43, allowing for angle deformation with the telescopic rod 42. This makes the support base 43 more stable on the desktop, enabling the device to purify the air while being angle-adjustable, achieving the effect of a desktop fan for cooling in hot weather.
[0029] 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 portable air purifier comprising a purifier top base (1), characterized in that: The top of the purifier top seat (1) is fixedly connected to a bracket (4), and the bottom of the purifier top seat (1) is provided with several filter cylinders (2). The bottom of the filter cylinder (2) is threadedly connected to a base (3). The filter cylinder (2) includes a folded filter (21). The top of the folded filter (21) is fixedly connected to a first fixing seat (22), and the bottom of the folded filter (21) is fixedly connected to a second fixing seat (23). The bottom of the base (3) is fixedly connected to a threaded seat (31). The inner wall of the threaded seat (31) is threadedly connected to the outer wall of the fixing seat (23) of one of the filter cylinders (2). The bracket (4) includes a U-shaped seat (41). The inner walls of both ends of the U-shaped seat (41) are slidably connected to telescopic rods (42). The other end of the telescopic rods (42) is fixedly connected to a rubber block (44). The bottom of the two rubber blocks (44) is fixedly connected to a support seat (43). The inner side of the U-shaped seat (41) is provided with threaded holes. The inner walls of the two threaded holes are threadedly connected to a fixing mechanism (45). The fixing mechanism (45) includes a square tube (451). The inner wall of the square tube (451) is slidably connected to a square column (452). The ends of the square tube (451) and the square column (452) that are far apart from each other are fixedly connected to threaded rods (453). The threaded rods (453) are threadedly connected to the inner wall of the threaded hole of the U-shaped seat (41), and the end of the threaded rods (453) that extends into the U-shaped seat (41) is in close contact with the outer wall of the telescopic rod (42).
2. The portable air cleaner of claim 1, wherein: The purifier top base (1) includes a fixed shell (11), and a ventilation groove that runs vertically through the middle of the fixed shell (11). A support frame (12) is fixedly connected to the inner wall of the ventilation groove. A motor (13) is fixedly connected to the middle of the top surface of the support frame (12). A fan blade (15) is fixedly connected to the output shaft of the motor (13). A card seat (14) is fixedly connected to the lower part of the ventilation groove of the fixed shell (11). The outer wall of the card seat (14) is threadedly connected to the inner wall of the fixed seat (22) on the filter cylinder (2).
3. The portable air cleaner of claim 2, wherein: The diameter of the threaded seat (31) is the same as the diameter of the fixed seat (22). Multiple filter cylinders (2) can be threaded together by tightening the fixed seat (22) at the bottom of the filter cylinder (2) with the fixed seat (23).