A mobile air purification device
The design of the limiting mechanism solves the problem of dust accumulation on the air purifier fan blades, enabling rapid cleaning of the fan blades and improving the maintenance efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YOUJIE ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-07-07
AI Technical Summary
The fan blades of existing air purifiers tend to accumulate dust after prolonged use, causing them to rotate under excessive load and requiring regular cleaning and maintenance. However, current technology makes it difficult to clean them quickly and effectively.
A limiting mechanism was designed, including a limiting unit and a transmission unit. Through the combination of a rotating column, a connecting column, a transmission block, a pulling block, a limiting block and a guide block, the fan blade cover can be quickly separated to expose the fan blades for easy cleaning.
This enables rapid cleaning of the fan blades, reduces maintenance time and labor intensity, and improves the efficiency and reliability of the equipment.
Smart Images

Figure CN224470394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purifiers, specifically a portable air purification device. Background Technology
[0002] Air purifiers are products that can adsorb, decompose, or transform various air pollutants (generally including dust, pollen, odors, bacteria, allergens, and decoration pollution such as formaldehyde), effectively improving air cleanliness.
[0003] In existing technologies, such as the Ecovacs air purifying robot, the robot can move back and forth in the home environment through an internal controller to purify and filter harmful gases in the air. Air purifiers, on the other hand, draw outside air into the purifier through a fan and filter impurities through an activated carbon plate and filter screen inside the purifier. During long-term use, the fan blades will accumulate a lot of dust, causing the fan blades to be overloaded and affecting their rotation. Regular cleaning and maintenance are required. Based on this, this utility model proposes a mobile air purification device. Utility Model Content
[0004] The purpose of this invention is to provide a mobile air purification device in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a mobile air purifier, including a purifier housing, and an air inlet cover fixed to the top of the purifier housing for air intake. The top of the air inlet cover is provided with an upper cover that provides protection for the fan blades. The top cavity of the purifier housing is provided with fan blades connected to a drive motor, and the device also includes a limiting mechanism that provides a limiting position for the connection between the air inlet cover and the upper cover.
[0006] The limiting mechanism includes a limiting unit and a transmission unit;
[0007] The limiting unit is used to limit the connection between the air inlet end cover and the top cover;
[0008] The transmission unit is used to provide power for the movement of the limiting unit.
[0009] As a further embodiment of this utility model: the limiting unit includes a rotating column, a connecting column, a transmission block, a pulling block, a limiting block, and a guide block;
[0010] The rotating column is rotatably installed in the inner cavity of the top of the cover and extends to the outer side of the top of the cover. The rotating column drives the transmission block to rotate circumferentially through the connecting column fixedly connected to the bottom. The transmission block is fixed to the outer side of the bottom end of the connecting column. The transmission block is used to pull the pull block rotatably connected at the end to rotate synchronously circumferentially.
[0011] The limiting block is axially slidably installed on the bottom of the upper cover via a guide block fixed at the top. The bottom of the upper cover is formed with a sliding groove for the guide block to move axially. The end of the limiting block near the connecting column is rotatably connected to the end of the pull block.
[0012] As a further embodiment of this utility model: the transmission unit includes a push plate, a guide rod, and a spring;
[0013] The push plate is fixed to the outer wall of the connecting column and located inside the cavity of the upper cover for the push plate to rotate. The inner wall of the push plate is sleeved on the outer wall of the guide rod. The other end of the guide rod is fixed to the inner wall of the upper cover. The spring is wrapped around the outer wall of the guide rod, and the two ends of the spring are respectively engaged with the inner wall of the upper cover and the outer wall of the push plate. The spring is used to provide a restoring force for the push plate after rotation.
[0014] As a further improvement of this utility model, the number of the limiting block, guide block, and pull block is set to two, and the two pull blocks, limiting blocks, and guide blocks are symmetrically distributed at the bottom of the upper cover.
[0015] As a further improvement of this utility model, the bottom of the ends of the limiting blocks that are far apart from each other is inclined.
[0016] As a further improvement of this utility model, the top of the air inlet end cover is formed with multiple air inlets that penetrate the air inlet end cover.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] By setting a limiting mechanism, when it is necessary to clean the dust adhering to the fan blades, the rotating column can be given rotational power to drive one end of the pull block to rotate circumferentially, so that the limiting block connected to the other end of the pull block moves axially along the axial groove of the guide block, so that the limiting block moves out from the bottom of the air inlet cover, thereby quickly separating the top cover from the air inlet cover, exposing the fan blades underneath, which facilitates quick cleaning and maintenance of the fan blades. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the upper cover of this utility model in its separated state.
[0021] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model.
[0022] In the diagram: 1. Purifier housing; 2. Air inlet cover; 3. Top cover; 4. Fan blade; 5. Limiting mechanism; 501. Rotating column; 502. Connecting column; 503. Transmission block; 504. Pull block; 505. Limiting block; 506. Guide block; 507. Push plate; 508. Guide rod; 509. Spring. Detailed Implementation
[0023] 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.
[0024] Please see Figures 1-3 In this embodiment of the utility model, a mobile air purifier includes a purifier housing 1 and an air inlet cover 2 fixed to the top of the purifier housing 1 for air intake. The top of the air inlet cover 2 is provided with an upper cover 3 that provides protection for the fan blades 4. The top cavity of the purifier housing 1 and the fan blades 4 connected to the drive motor are provided directly below the upper cover 3. The device also includes a limiting mechanism 5 that provides a limiting for the connection between the air inlet cover 2 and the upper cover 3.
[0025] The limiting mechanism 5 includes a limiting unit and a transmission unit;
[0026] The limiting unit is used to limit the connection between the air inlet end cover 2 and the upper cover 3;
[0027] The transmission unit is used to provide power for the movement of the limit unit;
[0028] The limiting unit includes a rotating column 501, a connecting column 502, a transmission block 503, a pulling block 504, a limiting block 505, and a guide block 506;
[0029] The rotating column 501 is rotatably installed in the top inner cavity of the upper cover 3 and extends to the outside of the top of the upper cover 3. The rotating column 501 drives the transmission block 503 to rotate circumferentially through the connecting column 502 fixedly connected to the bottom. The transmission block 503 is fixed to the outside of the bottom end of the connecting column 502. The transmission block 503 is used to pull the pull block 504 rotatably connected at the end to rotate synchronously.
[0030] The limiting block 505 is axially slidably installed on the bottom of the upper cover 3 via the guide block 506 fixed at the top. The bottom of the upper cover 3 is formed with a sliding groove for the guide block 506 to move axially. The end of the limiting block 505 near the connecting column 502 is rotatably connected to the end of the pull block 504.
[0031] The transmission unit includes a push plate 507, a guide rod 508, and a spring 509;
[0032] The push plate 507 is fixed to the outer wall of the connecting column 502 and is located inside the cavity of the upper cover 3 for the push plate 507 to rotate. The inner wall of the push plate 507 is sleeved on the outer wall of the guide rod 508. The other end of the guide rod 508 is fixed to the inner wall of the upper cover 3. The spring 509 is wrapped around the outer wall of the guide rod 508, and the two ends of the spring 509 are respectively engaged with the inner wall of the upper cover 3 and the outer wall of the push plate 507. The spring 509 is used to provide a restoring force for the push plate 507 after rotation.
[0033] The top of the air inlet end cover 2 is formed with multiple air inlets that penetrate through the air inlet end cover 2.
[0034] In this embodiment: when the fan blade 4 needs to be cleaned and maintained, by applying rotational force to the rotating column 501, the rotating connecting column 502 will synchronously drive the bottom connecting column 502 to rotate, causing the outer wall of the connecting column 502 and the push plate 507 and transmission block 503 fixed at the bottom to rotate synchronously. The rotating push plate 507 will move circumferentially along the outer wall of the guide rod 508 and apply compressive force to the spring 509 surrounding the outer wall of the guide rod 508. Meanwhile, the rotation of the transmission block 503 will pull a pull block that is rotatably connected at one end. When 504 rotates circumferentially, the limiting block 505 connected to the other end of the pull block 504 is subjected to the pulling force from the pull block 504. Through the guide block 506, it slides axially along the bottom of the upper cover 3. The two limiting blocks 505 approach each other under the pulling force of the pull block 504, so that the top of one end of the limiting block 505 moves out of the inner cavity of the upper cover 3. At this time, the upper cover 3 can be given an upward pulling force, so that the air inlet end cover 2 and the upper cover 3 are separated, exposing the fan blade 4 directly below the upper cover 3, which is convenient for maintenance and repair of the fan blade 4.
[0035] Please refer to this carefully. Figures 1-3 There are two limit blocks 505, guide blocks 506, and pull blocks 504. The two pull blocks 504, limit blocks 505, and guide blocks 506 are symmetrically distributed at the bottom of the upper cover 3. The bottom of the limit blocks 505 at the ends that are far apart from each other is inclined.
[0036] In this embodiment: With this structure, when installing the upper cover 3 and the air inlet cover 2, one end of the inclined force-bearing surface of the limiting block 505 at the bottom of the upper cover 3 will contact the groove ring wall of the air inlet cover 2. The inclined force-bearing surface of the limiting block 505 will give the limiting block 505 an axial movement compressive force, causing the limiting block 505 to push the pull block 504, the transmission block 503, and the connecting column 502 to rotate in the opposite direction until the limiting block 505 contacts the bottom of the inner cavity of the air inlet cover 2. Then the limiting block 505 will also be reset under the elastic force of the spring 509, completing the rapid splicing of the air inlet cover 2 and the upper cover 3.
[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A portable air purifier, comprising a purifier housing (1), characterized in that, It also includes an air inlet end cap (2) fixed to the top of the purifier housing (1) for air intake, the top of the air inlet end cap (2) is provided with an upper cover (3) to protect the fan blade (4), the top cavity of the purifier housing (1) and the fan blade (4) connected to the drive motor are provided directly below the upper cover (3), and it also includes a limiting mechanism (5) to limit the connection between the air inlet end cap (2) and the upper cover (3); The limiting mechanism (5) includes a limiting unit and a transmission unit; The limiting unit is used to limit the connection between the air inlet end cover (2) and the upper cover (3); The transmission unit is used to provide power for the movement of the limiting unit.
2. The mobile air purification device according to claim 1, characterized in that, The limiting unit includes a rotating column (501), a connecting column (502), a transmission block (503), a pulling block (504), a limiting block (505), and a guide block (506); The rotating column (501) is rotatably installed in the top inner cavity of the upper cover (3) and extends to the outside of the top of the upper cover (3). The rotating column (501) drives the transmission block (503) to rotate circumferentially through the connecting column (502) fixedly connected to the bottom. The transmission block (503) is fixed to the outside of the bottom end of the connecting column (502). The transmission block (503) is used to pull the pull block (504) rotatably connected to the end to rotate circumferentially. The limiting block (505) is axially slidably installed on the bottom of the upper cover (3) via the guide block (506) fixed at the top. The bottom of the upper cover (3) is formed with a sliding groove for the guide block (506) to move axially. The end of the limiting block (505) near the connecting column (502) is rotatably connected to the end of the pull block (504).
3. A mobile air purification device according to claim 1, characterized in that, The transmission unit includes a push plate (507), a guide rod (508), and a spring (509); The push plate (507) is fixed to the outer wall of the connecting column (502) and located inside the upper cover (3) in the cavity for the push plate (507) to rotate. The inner wall of the push plate (507) is sleeved on the outer wall of the guide rod (508). The other end of the guide rod (508) is fixed to the inner wall of the upper cover (3). The spring (509) surrounds the outer wall of the guide rod (508), and the two ends of the spring (509) are respectively engaged with the inner wall of the upper cover (3) and the outer wall of the push plate (507). The spring (509) is used to provide a restoring force for the push plate (507) after rotation.
4. A mobile air purification device according to claim 2, characterized in that, The number of the limiting block (505), guide block (506), and pull block (504) is set to two, and the two pull blocks (504), limiting blocks (505), and guide blocks (506) are symmetrically distributed at the bottom of the upper cover (3).
5. A mobile air purification device according to claim 2, characterized in that, The bottom of the opposite ends of the limiting blocks (505) is inclined.
6. A mobile air purification device according to claim 1, characterized in that, The top of the air inlet end cover (2) is formed with multiple air inlets that penetrate through the air inlet end cover (2).