An air filter with air filter element convenient to dismount

The modular design and snap-fit ​​fastening components facilitate easy disassembly and assembly of the filter element, solving the problem of complex replacement of existing air filter elements and improving user experience and equipment maintenance efficiency.

CN224485376UActive Publication Date: 2026-07-14HUBEI SHENLONG AIR INTAKE SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI SHENLONG AIR INTAKE SYST CO LTD
Filing Date
2025-07-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing air filter element replacement process is complicated, resulting in inconvenience in disassembly and assembly, time and effort consumption, impacting user experience and potentially causing equipment damage or poor sealing.

Method used

It adopts a detachable design, which enables convenient installation and removal of the filter element through snap-fit ​​components and fastening components. It includes modular connection of air inlet shell, air outlet shell, fan and filter mechanism, and uses snap-fit ​​components and fasteners to realize quick replacement of filter element.

Benefits of technology

It enables convenient installation and removal of filter elements, simplifies the maintenance process, avoids equipment damage and sealing problems, and improves the user experience.

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Abstract

The utility model discloses an air filter convenient to dismount air filter core in the technical field of air filter, including base, the base upper end is firmly connected with reinforcing ring, still includes air inlet shell, fan and filter mechanism, the air inlet shell is firmly connected in reinforcing ring, the fan is installed and is sealedly connected on the air inlet shell upper end, the filter mechanism is installed on the fan upper end. The utility model has the advantages that: the utility model embodiment air inlet shell, air outlet shell and fan all adopt detachable installation mode, and it is convenient to separately dismount and clean maintenance to each part, and the filter core is inserted and connected after installation, and the air outlet shell is installed on the mounting ring of fan through the buckle assembly of both sides, and the fastening assembly is used to control the fastener extrusion filter core, so that the sealing installation of filter core can be realized, when needing to replace the filter core, the air outlet shell is disassembled by pulling the puller, and the filter can be taken down, and the operation is simple and convenient.
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Description

Technical Field

[0001] This utility model relates to the field of air filter technology, specifically to an air filter with an easy-to-disassemble and install air filter element. Background Technology

[0002] Air filters are widely used in various air purification devices to remove pollutants such as particulate matter and harmful gases from the air. With increasing attention being paid to air quality, the frequency of use and maintenance needs of air filters are constantly increasing.

[0003] In the current technology, most air filters on the market adopt a fixed design, and the filter element replacement process is complicated, requiring professional tools or disassembly of multiple parts, which causes inconvenience to users. In addition, frequent disassembly and assembly operations may damage the equipment or cause poor sealing, affecting the filtration effect. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing air filters suffer from inconvenient disassembly and assembly, time-consuming and labor-intensive filter element replacement, resulting in a poor user experience.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] An air filter with an easy-to-disassemble air filter element includes a base, a reinforcing ring fixedly connected to the upper end of the base, an air inlet housing, a fan, and a filter mechanism. The air inlet housing is fixedly connected inside the reinforcing ring, the fan is installed and sealed to the upper end of the air inlet housing, and the filter mechanism is installed at the upper end of the fan.

[0007] The filtration mechanism includes an air outlet shell, a filter element, a fastening assembly, and a snap-fit ​​assembly. The air outlet shell is installed on the upper end of the fan via the snap-fit ​​assembly, the filter element is inserted into the upper end of the fan, and the fastening assembly is used to press and fix the filter element.

[0008] Furthermore, the air intake shell is provided with an air intake grille, and a first filter screen covering the air intake grille is adhered to the inner wall of the air intake shell.

[0009] Furthermore, a support ring is fixedly connected to the inner wall of the air intake housing, located on the upper side of the air intake grille. The upper end of the support ring is provided with a first sealing ring. The lower end of the fan is fixedly connected with a connecting ring threaded to the air intake housing. The lower end of the connecting ring abuts against the first sealing ring. The lower end of the fan is provided with a plurality of air extraction holes located inside the connecting ring.

[0010] Furthermore, an installation ring is fixedly connected to the upper end of the fan, and several air outlet holes are opened on the upper end of the fan located inside the installation ring. A second sealing ring is provided in the installation ring, and the filter element is inserted into the installation ring and abuts against the second sealing ring.

[0011] Furthermore, the buckle assembly is symmetrically arranged on both sides of the air outlet shell. The buckle assembly includes a sliding plate and a sliding rod. The air outlet shell is provided with a sliding groove. Two parallel sliding rods are horizontally fixed in the sliding groove. A spring is sleeved on the sliding rod. The sliding plate is slidably connected to the sliding rod and slidably engaged in the sliding groove, with the rear end of the sliding plate abutting against the spring. A locking block is fixedly connected to the front end of the sliding plate. The mounting ring is symmetrically provided with locking grooves on both sides. The locking block is inserted into the locking groove. A pull-out component is fixedly connected to the rear end of the sliding plate. The pull-out component slides out of the outside of the air outlet shell.

[0012] Furthermore, the fastening assembly includes a knob, a screw, and a fastener. The screw is threaded to the upper wall of the air outlet housing, the knob is fixed to the upper end of the screw, the lower end of the screw is rotatably connected to the fastener through a limiting piece, and the fastener is pressed against the upper end of the filter element.

[0013] Furthermore, the air outlet shell is provided with an air outlet grille, and a second filter screen covering the air outlet grille is adhered to the inner wall of the air outlet shell.

[0014] The beneficial effects of this utility model by adopting the above structure are as follows:

[0015] In this embodiment of the utility model, the air inlet shell, the air outlet shell, and the fan are all installed in a detachable manner, which facilitates the individual disassembly, cleaning, and maintenance of each component.

[0016] In this embodiment of the invention, after the filter element is inserted and installed, the air outlet shell is fastened to the mounting ring of the fan by the snap-fit ​​components on both sides. The fastening components control the fasteners to squeeze the filter element, thereby achieving a sealed installation of the filter element. When the filter element needs to be replaced, the air outlet shell can be removed by pulling the pull-out component. The operation is simple and convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire machine of this utility model.

[0018] Figure 2 This is a cross-sectional view of the air intake shell of this utility model.

[0019] Figure 3 This is a schematic diagram of the lower end of the fan of this utility model.

[0020] Figure 4 This is a schematic diagram of the upper part of the fan of this utility model.

[0021] Figure 5 This is a cross-sectional view of the filter mechanism component of this utility model.

[0022] Figure 6 This is a schematic diagram of the buckle assembly of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base, 101. Reinforcing ring, 2. Air inlet shell, 201. Air inlet grille, 202. First filter screen, 203. Support ring, 204. First sealing ring, 3. Fan, 301. Connecting ring, 302. Air extraction hole, 303. Mounting ring, 304. Slot, 305. Air outlet, 306. Second sealing ring, 4. Filtering mechanism, 401. Air outlet shell, 402. Air outlet grille, 403. Slide groove, 404. Second filter screen, 5. Buckle assembly, 501. Slide plate, 502. Locking block, 503. Slide rod, 504. Spring, 505. Pull-out piece, 6. Fastening assembly, 601. Knob, 602. Screw, 603. Fastener, 7. Filter element. Detailed Implementation

[0025] like Figure 1-6 As shown, an air filter with an easy-to-disassemble air filter element 7 includes a base 1, a reinforcing ring 101 fixedly connected to the upper end of the base 1, an air inlet shell 2, a fan 3 and a filter mechanism 4. The air inlet shell 2 is fixedly connected to the reinforcing ring 101, the fan 3 is installed and sealed to the upper end of the air inlet shell 2, and the filter mechanism 4 is installed on the upper end of the fan 3.

[0026] like Figure 2 , 3 As shown, the air intake shell 2 is provided with an air intake grille 201. A first filter screen 202 covering the air intake grille 201 is adhered to the inner wall of the air intake shell 2 to prevent the entry of particulate impurities. A support ring 203 located above the air intake grille 201 is fixed to the inner wall of the air intake shell 2. A first sealing ring 204 is provided at the upper end of the support ring 203. A connecting ring 301 threadedly connected to the air intake shell 2 is fixed to the lower end of the fan 3. The lower end of the connecting ring 301 abuts against the first sealing ring 204. Several air extraction holes 302 located inside the connecting ring 301 are provided at the lower end of the fan 3. Under the action of the fan 3, air passes through the air intake grille 201 and is initially filtered by the first filter screen 202 before entering the fan 3. The air intake shell 2 is easy to disassemble and clean.

[0027] like Figure 4-6As shown, the filtration mechanism 4 includes an air outlet shell 401, a filter element 7, a fastening assembly 6, and a snap-fit ​​assembly 5. An mounting ring 303 is fixedly connected to the upper end of the fan 3. The upper end of the fan 3 has several air outlet holes 305 located inside the mounting ring 303. The air outlet shell 401 is installed on the upper end of the fan 3 via the snap-fit ​​assembly 5. The snap-fit ​​assembly 5 is symmetrically arranged on both sides of the air outlet shell 401. The snap-fit ​​assembly 5 includes a sliding plate 501 and sliding rods 503. A sliding groove 403 is provided in the air outlet shell 401, and two parallel sliding rods 503 are horizontally fixed to the sliding groove 403. Inside the 3rd section, a spring 504 is fitted onto the slide rod 503. The slide plate 501 is slidably connected to the slide rod 503 and slidably fitted into the slide groove 403, with the rear end of the slide plate 501 abutting against the spring 504. A locking block 502 is fixedly connected to the front end of the slide plate 501. The mounting ring 303 has symmetrically provided slots 304 on both sides, and the locking block 502 is inserted into the slot 304. A pull-out member 505 is fixedly connected to the rear end of the slide plate 501. The pull-out member 505 slides out from the outside of the air outlet shell 401. By pulling the locking block 502 to both sides through the pull-out member 505, the air outlet can be opened. After the air housing 401 is fastened onto the mounting ring 303, the pull-out piece 505 is released. Under the action of the spring 504, the locking block 502 is inserted into the locking groove 304, realizing the installation of the air housing 401. The filter element 7 is inserted into the upper end of the fan 3. The fastening assembly 6 is used to compress and fix the filter element 7. The mounting ring 303 is provided with a second sealing ring 306. The filter element 7 is inserted into the mounting ring 303 and abuts against the second sealing ring 306. The fastening assembly 6 includes a knob 601, a screw 602, and a fastener 603. The screw 602 is threadedly connected to the air housing 401. 1. On the upper wall, the knob 601 is fixed to the upper end of the screw 602. The lower end of the screw 602 is rotatably connected to the fastener 603 through a limiting piece. The fastener 603 presses against the upper end of the filter element 7. The air outlet shell 401 is provided with an air outlet grille 402. The inner wall of the air outlet shell 401 is adhered with a second filter screen 404 covering the air outlet grille 402. After the filter element 7 and the air outlet shell 401 are installed, rotating the knob 601 causes the fastening ring to press the filter element 7, causing the filter element 7 to press the second sealing ring 306 inside the mounting ring 303, thereby achieving the sealed installation of the filter element 7.

[0028] When in use, the connecting ring 301 at the lower end of the fan 3 is threaded to the upper end of the air inlet shell 2 and abuts against the first sealing ring 204, so as to achieve a sealed connection between the fan 3 and the air inlet shell 2. Air enters the fan 3 through the air intake grille 201, is filtered by the first filter screen 202, and then enters the fan 3 through the air intake hole.

[0029] After vertically inserting the filter element 7 into the mounting ring 303, pull the T-shaped pull-out piece 505 towards both sides of the air outlet housing 401, thereby causing the locking block 502 to retract. Then, fasten the air outlet housing 401 onto the mounting ring 303 at the upper end of the fan 3, and release the pull-out piece 505. Under the action of the spring 504, the slide plate 501 slides on the slide rod 503, thereby driving the locking block 502 to insert into the slot 304, realizing the installation of the air outlet housing 401 and the fan 3. Then, turn the knob 601. This causes the screw 602 to spiral downwards on the upper wall of the air outlet shell 401, which in turn causes the fastener 603 to squeeze the filter element 7, thereby causing the filter element 7 to squeeze the second sealing ring 306 inside the mounting ring 303, thus achieving the sealed installation of the filter element 7. The air drawn by the fan 3 enters the filter element 7 through the air outlet 305 for filtration, and then is discharged through the air outlet grille 402. The second filter screen 404 on the inner wall of the air outlet shell 401 is used to prevent particulate impurities from entering the air outlet shell 401 through the air outlet grille 402.

[0030] When the filter element 7 needs to be replaced, pull the pull-out piece 505 to both sides of the air outlet shell 401, thereby disengaging the locking block 502 from the locking groove 304, and then the air outlet shell 401 can be removed from the mounting ring 303, and then the filter element 7 can be replaced.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An air filter with an easy-to-install and remove air filter element (7), comprising a base (1), wherein a reinforcing ring (101) is fixedly connected to the upper end of the base (1), characterized in that: It also includes an air intake shell (2), a fan (3) and a filter mechanism (4). The air intake shell (2) is fixed inside the reinforcing ring (101). The fan (3) is installed and sealed to the upper end of the air intake shell (2). The filter mechanism (4) is installed on the upper end of the fan (3). The filtration mechanism (4) includes an air outlet shell (401), a filter element (7), a fastening assembly (6), and a snap-fit ​​assembly (5). The air outlet shell (401) is installed on the upper end of the fan (3) through the snap-fit ​​assembly (5). The filter element (7) is inserted into the upper end of the fan (3). The fastening assembly (6) is used to squeeze and fix the filter element (7).

2. An air filter with an easily detachable air filter element (7) according to claim 1, characterized in that: The air intake shell (2) is provided with an air intake grille (201), and a first filter screen (202) covering the air intake grille (201) is adhered to the inner wall of the air intake shell (2).

3. An air filter with an easily detachable air filter element (7) according to claim 2, characterized in that: The inner wall of the air intake shell (2) is fixedly connected to a support ring (203) located on the upper side of the air intake grille (201). The upper end of the support ring (203) is provided with a first sealing ring (204). The lower end of the fan (3) is fixedly connected to a connecting ring (301) threadedly connected to the air intake shell (2). The lower end of the connecting ring (301) abuts against the first sealing ring (204). The lower end of the fan (3) is provided with a plurality of air extraction holes (302) located inside the connecting ring (301).

4. An air filter with an easily detachable air filter element (7) according to claim 1 or 3, characterized in that: The upper end of the fan (3) is fixedly connected to an installation ring (303). The upper end of the fan (3) is provided with a plurality of air outlet holes (305) located inside the installation ring (303). The installation ring (303) is provided with a second sealing ring (306). The filter element (7) is inserted into the installation ring (303) and abuts against the second sealing ring (306).

5. An air filter with an easily detachable air filter element (7) according to claim 4, characterized in that: The latching assembly (5) is symmetrically arranged on both sides of the air outlet shell (401). The latching assembly (5) includes a sliding plate (501) and sliding rods (503). The air outlet shell (401) is provided with a sliding groove (403). Two parallel sliding rods (503) are horizontally fixed in the sliding groove (403). A spring (504) is sleeved on the sliding rod (503). The sliding plate (501) is slidably connected to the sliding rod (503) and slides to engage with it. The slide (501) is fitted into the groove (403) and the rear end of the slide (501) abuts against the spring (504). The front end of the slide (501) is fixedly connected to a locking block (502). The mounting ring (303) has symmetrically provided slots (304) on both sides. The locking block (502) is inserted into the slot (304). The rear end of the slide (501) is fixedly connected to a pull-out member (505). The pull-out member (505) slides out from the outside of the air outlet shell (401).

6. An air filter with an easily detachable air filter element (7) according to claim 4, characterized in that: The fastening assembly (6) includes a knob (601), a screw (602), and a fastener (603). The screw (602) is threaded to the upper wall of the air outlet shell (401). The knob (601) is fixed to the upper end of the screw (602). The lower end of the screw (602) is rotatably connected to the fastener (603) through a limiting piece. The fastener (603) presses against the upper end of the filter element (7).

7. An air filter with an easily detachable air filter element (7) according to claim 5, characterized in that: The air outlet shell (401) is provided with an air outlet grille (402), and a second filter screen (404) covering the air outlet grille (402) is adhered to the inner wall of the air outlet shell (401).