Air purifier filter screen structure convenient to disassemble
By using the sliding engagement of the connecting rod and locking tongue, along with magnetic adsorption, the problem of inconvenient filter removal and insufficient sealing in traditional air purifiers is solved, achieving convenient removal and secure locking, thus improving user experience and purification effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU JDJIA ENVIRONMENTAL SCI&TECH CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional air purifier filters are inconvenient to install and remove, have insufficient sealing, and poor locking reliability, which affects user experience and purification effect.
The locking mechanism employs a linkage, locking tongue, and limiting components. The linkage drives the locking tongue to slide in the groove of the filter screen, combined with magnetic adsorption, to achieve convenient installation and removal of the filter screen, ensuring a secure lock.
It significantly improves filter replacement efficiency, ensures a secure and tight fit after installation, prevents loosening, enhances sealing, prevents air leakage, and guarantees purification effect.
Smart Images

Figure CN224534479U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air purifier technology, and in particular to an air purifier filter structure that is easy to disassemble and assemble. Background Technology
[0002] In recent years, with the increasing severity of air pollution, air purifiers have been used more and more widely in home, office and industrial environments. As the core component of air purifiers, the performance of the filter directly affects the purification effect. However, the filter structure of traditional air purifiers usually adopts a fixed or simple snap-on design, which has problems such as inconvenient disassembly and assembly, insufficient sealing and poor locking reliability, affecting the user experience and filter replacement efficiency.
[0003] Currently, the most common way to fix filters on the market is to use screws to secure them to the housing. While this provides good stability, the disassembly and assembly process is cumbersome and requires tools. Using elastic clips to fix filters simplifies the installation process, but after long-term use, the clips are prone to deformation or wear, causing the filter to loosen and affecting the sealing and purification effect. The filter is pushed into the housing via a slide rail, but if the slide rail is not precise enough, the filter may not be installed properly, or even cause air leakage. The locking mechanisms in existing technologies are often complex in structure or rely on additional springs or other components, which may fail to lock due to component aging.
[0004] Therefore, it is necessary to provide a new air purifier filter structure that is easy to disassemble and assemble to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an air purifier filter structure that is easy to disassemble and assemble.
[0006] This utility model provides an easy-to-assemble and disassemble air purifier filter structure, comprising: a mounting frame for placing the filter, a locking mechanism, and a housing. The housing is fixedly connected to the mounting frame. The locking mechanism is located on the top of the mounting frame and includes a connecting rod, a locking tongue, and a limiting component for restricting the rotation of the locking tongue. The top of the mounting frame has a through hole, through which the connecting rod is fixedly connected to the locking tongue. The top of the filter has a groove, and the locking tongue slides in the groove. The middle of the connecting rod is provided with multiple protrusions, and the output end of the limiting component is connected to the protrusions.
[0007] Preferably, the limiting component includes a fixed seat and a locking block. The fixed seat is fixedly connected to the top of the mounting frame, and the locking block is rotatably connected to the fixed seat. An elastic element is provided at the bottom of one side of the locking block, and the locking block is placed between two protrusions.
[0008] Preferably, the elastic element includes a placement frame and a spring, the placement frame is fixedly connected to the top of the mounting frame, one side of the spring is fixedly connected to the placement frame, and the other side of the spring is fixedly connected to the locking block.
[0009] Preferably, the top of the connecting rod is provided with a handle, and the rotation plane of the handle is parallel to the rotation plane of the latch.
[0010] Preferably, the mounting frame has a mounting groove, and the filter screen slides within the mounting frame.
[0011] Preferably, a magnet is provided in the groove, and the latch is attracted to the magnet.
[0012] Compared with related technologies, the air purifier filter structure that is easy to disassemble and assemble provided by this utility model has the following beneficial effects:
[0013] The locking tongue slides into the filter groove via a connecting rod, allowing users to easily install or remove the filter by simply pushing and pulling without the need for tools. This significantly improves the efficiency of filter replacement. The locking tongue and filter groove's working structure ensures that the filter is securely locked in place after installation, preventing it from loosening due to vibration or airflow impact, improving sealing, preventing air leakage, and ensuring purification effect. Attached Figure Description
[0014] Figure 1 A schematic diagram of a preferred embodiment of an air purifier filter structure that is easy to disassemble and assemble, provided by this utility model;
[0015] Figure 2 for Figure 1 The diagram shown illustrates the structure of the filter screen.
[0016] Figure 3 for Figure 1 The diagram shows the structure of the locking mechanism.
[0017] The following are the labels in the diagram: 1. Filter screen; 2. Mounting frame; 3. Housing; 4. Connecting rod; 5. Locking tongue; 6. Protrusion; 7. Fixing base; 8. Locking block; 9. Placement frame; 10. Spring; 11. Handle; 12. Mounting groove; 13. Groove; 14. Display screen; 15. Handle; 16. Air outlet; 17. Air inlet. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0019] Please refer to the following: Figure 1 , Figure 2 , Figure 3 ,in, Figure 1A schematic diagram of a preferred embodiment of an air purifier filter structure that is easy to disassemble and assemble, provided by this utility model; Figure 2 for Figure 1 The diagram shown illustrates the structure of the filter screen. Figure 3 for Figure 1 The diagram shows the structure of the locking mechanism.
[0020] In the specific implementation process, such as Figures 1-3 As shown, an air purifier filter structure that is easy to disassemble and assemble includes a mounting frame 2 for placing the filter 1, a locking mechanism, a housing 3, a display screen 15, a handle 16, and other components. Through the coordinated operation of these components, the air purifier filter can be easily disassembled and assembled, while also having functions such as air purification and status display.
[0021] The housing 3 serves as the outer shell of the entire air purifier, protecting the internal components and supporting other parts. A display screen 14 is located on one side of the housing 3, which displays information such as the working status of the air purifier and air quality parameters, allowing users to understand the equipment's operation in real time. A handle 15 is located on the other side of the housing 3, making it easy for users to carry and move the air purifier. The air inlet 17 is located at the bottom of the handle 15. This layout ensures that the air intake efficiency is not affected by the obstruction of the handle 15 when the air enters the purifier. An air outlet 16 is located on the top of the housing 3, from which the purified air is discharged, achieving indoor air circulation and purification.
[0022] Filter 1 is a pre-filter, a G4 cotton pre-filter, mainly used to filter dust particles larger than 5μm. The outer frame is made of aluminum. The filter materials include non-woven fabric, nylon mesh, activated carbon, filter media, metal mesh, etc. The protective netting includes double-layer powder coating, wire mesh, and double-sided galvanized wire mesh.
[0023] The mounting frame 2 is used to place the filter 1. It has a mounting groove 12 inside, and the filter 1 can slide in the mounting groove 12. This design makes it easier to install and remove the filter 1. The mounting frame 2 is fixedly connected to the housing 3 to ensure the stability of the mounting frame 2 during the operation of the air purifier.
[0024] The locking mechanism is located at the top of the mounting frame 2 and mainly includes a connecting rod 4, a locking tongue 5, and a limiting component that restricts the rotation of the locking tongue 5. The top of the mounting frame 2 has a through hole through which the connecting rod 4 passes and is fixedly connected to the locking tongue 5. Multiple protrusions 6 are arranged around the middle of the connecting rod 4. These protrusions 6 are used to cooperate with the limiting component to limit the position of the connecting rod 4 and the locking tongue 5. The top of the connecting rod 4 has a handle 11, and the rotation plane of the handle 11 is parallel to the rotation plane of the locking tongue 5. This design allows the user to drive the locking tongue 5 to rotate more smoothly when operating the handle 11, which facilitates the removal and installation of the filter. The top of the filter 1 has a groove 13, into which the locking tongue 5 can slide. When the locking tongue 5 slides into the groove 13, it can fix the filter 1 in the mounting frame 2, preventing it from shaking or falling off during the operation of the air purifier.
[0025] The limiting component includes a fixed base 7 and a locking block 8. The fixed base 7 is fixedly connected to the top of the mounting frame 2, providing stable support for the locking block 8. The locking block 8 is rotatably connected to the fixed base 7. An elastic element is provided at the bottom of one side of the locking block 8, and the locking block 8 is placed between two protrusions 6. The elastic element includes a placement frame 9 and a spring 10. The placement frame 9 is fixedly connected to the top of the mounting frame 2. One side of the spring 10 is fixedly connected to the placement frame 9, and the other side is fixedly connected to the locking block 8. In its natural state, the elastic force of the spring 10 makes the locking block 8 tightly placed between the two protrusions 6, thereby limiting the rotation of the connecting rod 4, and thus limiting the rotation of the locking tongue 5, ensuring that the locking tongue 5 is stably fixed in the groove 13 of the filter screen 1.
[0026] A magnet is provided in the groove 13. When the locking tongue 5 slides into the groove 13, the locking tongue 5 is attracted to the magnet. The attraction force of the magnet further enhances the connection stability between the locking tongue 5 and the filter screen 1, preventing the locking tongue 5 from sliding out of the groove 13 due to air flow or equipment vibration during the operation of the air purifier, and ensuring that the filter screen 1 is always firmly installed in the mounting frame 2.
[0027] The working principle provided by this utility model is as follows:
[0028] The user holds the filter screen 1 and slides it into the mounting groove 12 inside the mounting frame 2, aligning the top of the filter screen 1 with the top of the mounting frame 2. The filter screen 1 is then fully pushed into the mounting frame 2. One hand presses down the locking block 8, while the other hand rotates the handle 11 at the top of the connecting rod 4. The connecting rod 4 drives the locking tongue 5 to rotate. When the locking tongue 5 rotates to the position corresponding to the groove 13 at the top of the filter screen 1, the locking tongue 5 slides into the groove 13. At this point, the locking block 8 is released. Under the action of the spring 10, the locking block 8 is tightly fitted between the two protrusions 6, restricting the rotation of the connecting rod 4. At the same time, the locking tongue 5 is attracted to the magnet in the groove 13, further fixing the position of the locking tongue 5, thus completing the installation of the filter screen 1.
[0029] Press the locking block 8 to move it away from the position between the two protrusions 6. Rotate the handle 11 at the top of the connecting rod 4. The connecting rod 4 drives the locking tongue 5 to rotate, causing the locking tongue 5 to slide out of the groove 13 at the top of the filter screen 1. The user holds the filter screen 1 and pulls it out along the mounting groove 12 in the mounting frame 2 to complete the removal of the filter screen 1.
[0030] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An air purifier filter structure that is easy to assemble and disassemble, comprising a mounting frame (2) for holding the filter (1), a locking mechanism, and a housing (3), characterized in that, The housing (3) is fixedly connected to the mounting frame (2). The locking mechanism is located on the top of the mounting frame (2). The locking mechanism includes a connecting rod (4), a locking tongue (5), and a limiting component that restricts the rotation of the locking tongue (5). The top of the mounting frame (2) is provided with a through hole. The connecting rod (4) passes through the through hole and is fixedly connected to the locking tongue (5). The top of the filter screen (1) is provided with a groove (13). The locking tongue (5) slides with the groove (13). The middle part of the connecting rod (4) is provided with multiple protrusions (6). The output end of the limiting component is connected to the protrusions (6).
2. The air purifier filter structure for easy disassembly and assembly according to claim 1, characterized in that, The limiting component includes a fixed seat (7) and a locking block (8). The fixed seat (7) is fixedly connected to the top of the mounting frame (2). The locking block (8) is rotatably connected to the fixed seat (7). An elastic element is provided at the bottom of one side of the locking block (8). The locking block (8) is placed between two protrusions (6).
3. The air purifier filter structure for easy disassembly and assembly according to claim 2, characterized in that, The elastic element includes a placement frame (9) and a spring (10). The placement frame (9) is fixedly connected to the top of the mounting frame (2). One side of the spring (10) is fixedly connected to the placement frame (9), and the other side of the spring (10) is fixedly connected to the locking block (8).
4. The air purifier filter structure for easy disassembly and assembly according to claim 3, characterized in that, The top of the connecting rod (4) is provided with a handle (11), and the rotation plane of the handle (11) is parallel to the rotation plane of the latch (5).
5. The air purifier filter structure for easy disassembly and assembly according to claim 4, characterized in that, The mounting frame (2) is provided with a mounting groove (12), and the filter screen (1) slides within the mounting frame (2).
6. The air purifier filter structure for easy disassembly and assembly according to claim 5, characterized in that, A magnet is provided in the groove (13), and the latch (5) is attracted to the magnet.