Filter assembly of air purifier

By using a rubber ring auxiliary device in the air purifier filter assembly, the problem of reduced purification capacity caused by gaps is solved, achieving a more efficient air purification effect.

CN224246392UActive Publication Date: 2026-05-15GUANGDONG AIHANG ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG AIHANG ENVIRONMENTAL TECH CO LTD
Filing Date
2025-06-29
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Gaps may appear at the connection between the air purifier's filter assembly frame and the air purifier itself due to manufacturing errors, causing some air to escape directly without being purified by the filter assembly, thus reducing the purification capacity.

Method used

A rubber ring auxiliary device is used. Through the cooperation of the bidirectional threaded rod and the auxiliary ring, the deformation of the rubber ring is made to completely abut against the inner cavity of the air purifier, so as to achieve auxiliary sealing.

Benefits of technology

It effectively prevents unpurified air from leaking out through gaps, thus improving the purification capacity of the filter components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air purifier filtering assembly which comprises a frame, a primary filter screen, an activated carbon filter screen and an HEPA filter screen are sequentially installed on the inner wall of the frame, an auxiliary device is arranged on the outer surface of the frame, and the auxiliary device conducts auxiliary sealing on the portion between the frame and an inner cavity of an air purifier through a rubber ring. According to the air purifier, the rubber ring is arranged, the rubber ring is fixedly installed on the outer surface of the frame, the rubber ring is adjusted so that the rubber ring can deform till the outer surface of the rubber ring completely abuts against the inner cavity of the air purifier, and then the rubber ring can conduct auxiliary sealing on the portion between the frame and the inner cavity of the air purifier; according to the air purifier, part of air can be prevented from overflowing through a gap between the filtering assembly and an inner cavity of the air purifier without being purified by the filtering assembly, and therefore the air purifying capacity of the filtering assembly can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of air purifier technology, and in particular to an air purifier filter component. Background Technology

[0002] Air purifier filters are the core components of air purifiers used to filter pollutants and purify the air. Different types of filters can remove various pollutants from the air through multiple mechanisms such as physical interception, chemical adsorption, and catalytic decomposition.

[0003] When installing the filter assembly inside an air purifier, it needs to be inserted into the inner cavity of the air purifier. However, due to manufacturing errors or other reasons, the connection between the filter assembly frame and the air purifier may not be fully coupled, which may result in gaps. The presence of gaps may cause some air to leak out without being purified by the filter assembly, thereby reducing the filter assembly's ability to purify the air. Summary of the Invention

[0004] This invention provides an air purifier filter assembly to address the problem that gaps can easily appear at the connection between the filter assembly frame and the air purifier due to processing errors, which may cause some air to leak out without being purified by the filter assembly, thus reducing the filter assembly's air purification capacity.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an air purifier filter assembly, comprising a frame, wherein a pre-filter, an activated carbon filter, and a HEPA filter are sequentially installed on the inner wall of the frame, and an auxiliary device is provided on the outer surface of the frame, wherein the auxiliary device provides auxiliary sealing between the frame and the inner cavity of the air purifier by setting a rubber ring.

[0006] The effect achieved by the above components is as follows: by setting the rubber ring and adjusting the rubber ring so that the outer surface of the rubber ring abuts against the inner cavity of the air purifier, the rubber ring can provide an auxiliary seal between the frame and the inner cavity of the air purifier, which helps to prevent some air from escaping through the gaps without being purified by the filter components, thereby improving the air purification capacity of the filter components.

[0007] Preferably, the auxiliary device includes a rubber ring, which is fixedly installed in the middle of the outer surface of the frame. Auxiliary rings are symmetrically arranged on both sides of the rubber ring. The auxiliary rings are slidably arranged on the outer surface of the frame. Extension blocks are symmetrically fixedly installed on the inner side of the auxiliary rings. Bidirectional threaded rods are rotatably installed on both sides of the frame. The two extension blocks are symmetrically threaded to the outer surface of the bidirectional threaded rods.

[0008] The effect achieved by the above components is as follows: when the two bidirectional threaded rods are rotated respectively, the threads on both sides of the bidirectional threaded rods are of the same size but opposite in direction. The bidirectional threaded rods will drive a pressure plate connected to the screw hole block to move towards the rubber ring, so that the two auxiliary rings gradually squeeze the rubber ring, causing the rubber ring to deform outward until the outer surface of the rubber ring completely abuts against the inner cavity of the air purifier. Then the rubber ring can provide auxiliary sealing between the frame and the inner cavity of the air purifier.

[0009] Preferably, the rubber ring has a hollow structure.

[0010] The effect achieved by the above components is as follows: by setting a hollow rubber ring, the deformation capacity of the rubber ring can be effectively enhanced, which in turn facilitates the rapid deformation of the rubber ring during the compression process by the two auxiliary rings, sealing the space between the frame and the inner cavity of the air purifier, and facilitating the rapid adjustment of the rubber ring.

[0011] Preferably, the outer surface of the rubber ring is uniformly provided with a plurality of annular protrusions.

[0012] The effect achieved by the above components is that by setting an annular protrusion on the outer surface of the rubber ring, the friction of the outer surface of the rubber ring can be effectively increased, thereby making the connection and seal between the rubber ring and the inner cavity of the purifier more stable.

[0013] Preferably, rotating blocks are fixedly installed at both ends of the bidirectional threaded rod, and hidden grooves are symmetrically opened on both sides of the auxiliary ring, with the rotating blocks disposed inside the hidden grooves.

[0014] The effect achieved by the above components is that rotating the rotating block can drive the bidirectional threaded rod to rotate, and at the same time, by setting a hidden groove in which the rotating block is placed, it helps to prevent the rotating block from obstructing the installation of the filter assembly.

[0015] Preferably, a silicone ring is bonded to the side of each of the two auxiliary rings that are close to each other, and the silicone ring is fitted onto the outer surface of the frame.

[0016] The effect achieved by the above-mentioned components is that by setting a silicone ring, one side of the auxiliary ring can be used to abut against one side of the rubber ring, which helps to prevent the auxiliary ring from squeezing the rubber ring during the process and causing the hollow rubber ring to break.

[0017] Preferably, an elastic ring is installed on one side of the inner wall of the rubber ring, and one side of the elastic ring is inclined and abuts against the other side of the inner wall of the rubber ring.

[0018] The effects achieved by the above-mentioned components are as follows: by setting up an elastic ring, when the two auxiliary rings squeeze the rubber ring, they will also squeeze the elastic ring, causing the elastic ring to deform. One side of the elastic ring is inclined, which makes it easier for the inner wall of the rubber ring to squeeze the elastic ring and cause the elastic ring to deform in the direction of the rubber ring's deformation. This can assist the deformation of the rubber ring. At the same time, when the two auxiliary rings move away from each other, the elastic ring can assist the rubber ring to reset, thereby facilitating the quick disassembly and maintenance of the filter assembly.

[0019] Preferably, bolts are symmetrically threaded on both sides of the auxiliary ring, and one end of the bolt abuts against one side of the frame.

[0020] The effect achieved by the above components is that by rotating the bolt, one end of the bolt abuts against the outer surface of the frame, the bolt can provide auxiliary fixation between the auxiliary ring and the frame, which helps to prevent the bidirectional threaded rod from loosening and causing the auxiliary ring to shift.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, a rubber ring is fixedly installed on the outer surface of the frame. The rubber ring is adjusted to deform until its outer surface is in complete contact with the inner cavity of the air purifier. This rubber ring provides an auxiliary seal between the frame and the inner cavity of the air purifier, which helps prevent some air from leaking out through the gap between the filter assembly and the inner cavity of the air purifier without being purified by the filter assembly. This, in turn, helps improve the air purification capacity of the filter assembly. Attached Figure Description

[0023] Figure 1 This is a three-dimensional sectional view of the main body of the present utility model;

[0024] Figure 2 This is a three-dimensional structural diagram of the auxiliary device of this utility model;

[0025] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0026] Figure 4 This is a three-dimensional structural diagram of the frame of this utility model.

[0027] Legend: 1. Frame; 2. Pre-filter; 3. Activated carbon filter; 4. HEPA filter; 5. Auxiliary device; 51. Rubber ring; 52. Auxiliary ring; 53. Extension block; 54. Two-way threaded rod; 55. Rotating block; 56. Hidden groove; 57. Silicone ring; 58. Elastic ring; 59. Bolt. Detailed Implementation

[0028] Example 1, referring to Figures 1-3 As shown, this embodiment discloses an air purifier filter assembly, including a frame 1. A pre-filter 2, an activated carbon filter 3, and a HEPA filter 4 are sequentially installed on the inner wall of the frame 1. An auxiliary device 5 is provided on the outer surface of the frame 1. The auxiliary device 5 provides an auxiliary seal between the frame 1 and the inner cavity of the air purifier by setting a rubber ring 51. By setting the rubber ring 51 and adjusting it, the outer surface of the rubber ring 51 abuts against the inner cavity of the air purifier. Thus, the rubber ring 51 can provide an auxiliary seal between the frame 1 and the inner cavity of the air purifier, which helps to prevent some air from escaping through the gaps without being purified by the filter assembly, thereby improving the air purification capacity of the filter assembly.

[0029] Reference Figure 2 and Figure 3 As shown, the auxiliary device 5 includes a rubber ring 51, which is fixedly installed in the middle of the outer surface of the frame 1. Auxiliary rings 52 are symmetrically arranged on both sides of the rubber ring 51, and the auxiliary rings 52 are slidably disposed on the outer surface of the frame 1. Extension blocks 53 are symmetrically fixedly installed on the inner side of the auxiliary rings 52. Two bidirectional threaded rods 54 are rotatably installed on both sides of the frame 1. The two extension blocks 54 are symmetrically threaded onto the outer surface of the bidirectional threaded rods 54. When the two bidirectional threaded rods 54 are rotated, the threads on both sides of the bidirectional threaded rods 54 are of the same size but opposite in direction. This causes the bidirectional threaded rods 54 to drive a pressure plate connected to a screw hole block towards the rubber ring. The movement of ring 51 causes the two auxiliary rings 52 to gradually compress the rubber ring 51, causing the rubber ring 51 to deform outward until its outer surface is fully in contact with the inner cavity of the air purifier. This allows the rubber ring 51 to provide an auxiliary seal between the frame 1 and the inner cavity of the air purifier. The hollow structure of the rubber ring 51 effectively enhances its deformation capacity, enabling it to deform quickly during compression by the two auxiliary rings 52, thus sealing the space between the frame 1 and the inner cavity of the air purifier and facilitating rapid adjustment of the rubber ring 51.

[0030] Reference Figure 2 and Figure 3 As shown, the outer surface of the rubber ring 51 is uniformly provided with several annular protrusions. By providing annular protrusions on the outer surface of the rubber ring 51, the friction of the outer surface of the rubber ring 51 can be effectively increased, thereby making the connection and seal between the rubber ring 51 and the inner cavity of the purifier more stable. Both ends of the bidirectional threaded rod 54 are fixedly installed with rotating blocks 55. The auxiliary ring 52 has symmetrically opened hidden grooves 56 on both sides. The rotating blocks 55 are set inside the hidden grooves 56. Rotating the rotating blocks 55 can drive the bidirectional threaded rod 54 to rotate. At the same time, by setting the hidden grooves 56, the rotating blocks 55 are set in them, which helps to prevent the rotating blocks 55 from obstructing the installation of the filter components.

[0031] Reference Figure 2 and Figure 3 As shown, silicone rings 57 are adhered to the adjacent sides of the two auxiliary rings 52. The silicone rings 57 are fitted onto the outer surface of the frame 1. By providing the silicone rings 57, one side of the auxiliary ring 52 can abut against one side of the rubber ring 51, which helps prevent the auxiliary rings 52 from squeezing the rubber ring 51 and causing damage to the hollow rubber ring 51. An elastic ring 58 is installed on one side of the inner wall of the rubber ring 51. One side of the elastic ring 58 is inclined and abuts against the other side of the inner wall of the rubber ring 51. By providing the elastic ring 58… When the two auxiliary rings 52 squeeze the rubber ring 51, they also squeeze the elastic ring 58, causing the elastic ring 58 to deform. One side of the elastic ring 58 is inclined, which makes it easier for the inner wall of the rubber ring 51 to squeeze the elastic ring 58 and cause the elastic ring 58 to deform in the direction of the rubber ring 51's deformation. This can assist the deformation of the rubber ring 51. At the same time, when the two auxiliary rings 52 move away from each other, the elastic ring 58 can assist the rubber ring 51 to reset, thus facilitating the quick disassembly and maintenance of the filter assembly.

[0032] Reference Figure 4 As shown, bolts 59 are symmetrically threaded on both sides of the auxiliary ring 52. One end of the bolt 59 abuts against one side of the frame 1. By rotating the bolt 59, one end of the bolt 59 abuts against the outer surface of the frame 1. The bolt 59 can provide auxiliary fixation between the auxiliary ring 52 and the frame 1, which helps to prevent the bidirectional threaded rod 54 from loosening and causing the auxiliary ring 52 to shift.

[0033] Working principle: Rotating the rotating block 55 drives the bidirectional threaded rod 54 to rotate. The bidirectional threaded rod 54 drives a pressure plate connected to the threaded hole block to move towards the rubber ring 51. This causes the silicone ring 57 on one side of the two auxiliary rings 52 to gradually squeeze the rubber ring 51, causing the rubber ring 51 and the elastic ring 58 to deform outward until the side of the outer surface of the rubber ring 51 with the protrusion is completely in contact with the inner cavity of the air purifier. Then, rotating the bolt 59 causes one end of the bolt 59 to abut against the outer surface of the frame 1. The bolt 59 can then provide auxiliary fixation between the auxiliary ring 52 and the frame 1, which helps to prevent the bidirectional threaded rod 54 from loosening and causing the auxiliary ring 52 to shift. The rubber ring 51 can then provide auxiliary sealing between the frame 1 and the inner cavity of the air purifier. Rotating the bolt 59 away from the frame 1 and then rotating the rotating block 55 in the opposite direction causes the two auxiliary rings 52 to move away from each other. The elastic ring 58 can then assist the rubber ring 51 in resetting, which facilitates quick disassembly and maintenance of the filter assembly.

Claims

1. An air purifier filter assembly, comprising a frame (1), characterized in that: The inner wall of the frame (1) is sequentially equipped with a primary filter (2), an activated carbon filter (3), and a HEPA filter (4). An auxiliary device (5) is provided on the outer surface of the frame (1). The auxiliary device (5) provides auxiliary sealing between the frame (1) and the inner cavity of the air purifier by setting a rubber ring (51). The auxiliary device (5) includes a rubber ring (51), which is fixedly installed in the middle of the outer surface of the frame (1). Auxiliary rings (52) are symmetrically arranged on both sides of the rubber ring (51). The auxiliary rings (52) are slidably arranged on the outer surface of the frame (1). Extension blocks (53) are symmetrically fixedly installed on the inner side of the auxiliary rings (52). Two bidirectional threaded rods (54) are rotatably installed on both sides of the frame (1). The two extension blocks (53) are symmetrically threaded to the outer surface of the bidirectional threaded rods (54).

2. The air purifier filter assembly according to claim 1, characterized in that: The rubber ring (51) has a hollow structure.

3. The air purifier filter assembly according to claim 1, characterized in that: The outer surface of the rubber ring (51) is uniformly provided with several annular protrusions.

4. The air purifier filter assembly according to claim 1, characterized in that: Both ends of the bidirectional threaded rod (54) are fixedly installed with rotating blocks (55), and the auxiliary ring (52) is symmetrically provided with hidden grooves (56) on both sides, and the rotating blocks (55) are located inside the hidden grooves (56).

5. The air purifier filter assembly according to claim 1, characterized in that: A silicone ring (57) is glued to one side of each of the two auxiliary rings (52) that are close to each other, and the silicone ring (57) is fitted on the outer surface of the frame (1).

6. The air purifier filter assembly according to claim 1, characterized in that: An elastic ring (58) is installed on one side of the inner wall of the rubber ring (51). One side of the elastic ring (58) is an inclined surface and abuts against the other side of the inner wall of the rubber ring (51).

7. The air purifier filter assembly according to claim 1, characterized in that: The auxiliary ring (52) has bolts (59) symmetrically threaded on both sides, and one end of the bolts (59) abuts against one side of the frame (1).