PET layer filter element replacement structure

By designing a replacement structure for the PET layer filter element, the disassembly and assembly process of the filter element is simplified, solving the problem of complex replacement in existing technologies, and improving user experience and filter element lifespan.

CN224024582UActive Publication Date: 2026-03-24ANHUI YUNNUO ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-24
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The current replacement process for PET layer filters in air purifiers is complicated, affecting user experience and filtration efficiency, and may even damage the filter.

Method used

Design a PET layer filter cartridge replacement structure, including a replacement structure body, a collar, a second handle, a base ring, a spring, and an insert post. It simplifies the filter cartridge disassembly and assembly process by connecting it to the base plate through a buckle.

Benefits of technology

It enables convenient replacement of PET filter elements, improves user experience, and ensures stable operation of the purification system and the service life of the filter elements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PET (Polyethylene Terephthalate) layer filter element replacement structure, which relates to the technical field of filter element replacement, and comprises a replacement structure main body, a PET filter element is movably sleeved on the replacement structure main body, the replacement structure main body consists of a ferrule, two second handles, a base ring, a spring and an insertion column, the second handles are symmetrically and fixedly arranged on the outer wall of the ferrule, and the base ring is sleeved on the base ring. The base ring is fixedly installed on the inner wall of the ferrule, the spring is fixedly installed at the upper end of the base ring, the multiple insertion columns are annularly distributed at the lower end of the base ring, two connecting buckles are symmetrically and fixedly installed on the outer wall of the ferrule, the connecting buckles are slidably installed on the PET filter element at the same time, and each connecting buckle is composed of a connecting block, an elastic plate and a connecting clamping block. The replacement structure main body is arranged on the PET filter element, the connection buckle is arranged on the replacement structure main body, and meanwhile, the replacement structure main body is matched with the bottom plate and the air purifier, so that the disassembly and assembly of the PET filter element are simpler and more convenient, and the replacement of the PET filter element is more convenient.
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Description

TECHNICAL FIELD

[0001] The utility model relates to filter core replacement technical field, especially in a kind of PET layer filter core replacement structure. BACKGROUND

[0002] PET layer filter core is a filter core made of PET (polyester fiber) material, and the main material of PET layer filter core is polyester fiber, which is a synthetic fiber with good physical and chemical properties. PET layer filter core has various forms, such as folded filter core and conical filter core. These forms help to increase the filtering area and efficiency of the filter core. PET layer filter core has high filtering precision and can effectively remove particles, dust and other impurities in the air. PET layer filter core is widely used in air purifiers to remove particles, dust, pollen and other impurities in the air and improve indoor air quality.

[0003] The PET layer filter core in the air purifier will have a lot of dust attached to it during use, so the PET layer filter core needs to be replaced after a period of use. The convenience of replacing the PET layer filter core has an important impact on its use effect and user experience. Convenient replacement design can ensure that users easily and quickly replace the filter core, avoid inconvenience or delay caused by the complex replacement process, and ensure the long-term stable operation of the purification system. On the contrary, if the replacement process is complex, it will not only reduce the user's enthusiasm, but also may cause damage to the filter core or improper installation, affecting the filtering efficiency and service life of the PET layer filter core. Therefore, the convenience of filter core replacement is one of the important indicators of the quality and user-friendliness of PET layer filter core. Therefore, the present application provides a PET layer filter core replacement structure. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a PET layer filter core replacement structure, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is:

[0006] The utility model provides a PET layer filter core replacement structure, including replacement structure main part, PET filter core is movably sleeved on the replacement structure main part, the replacement structure main part is composed of sleeve ring, second handle, base ring, spring and insert post, the second handle is two and is fixedly installed on the outer wall of sleeve ring symmetry, the base ring is fixedly installed on the inner wall of sleeve ring, the spring is fixedly installed on the upper end of base ring, the insert post is a plurality of and is annularly distributed on the lower end of base ring, the outer wall of sleeve ring is fixedly installed with two connecting buckles symmetry, connecting buckle is simultaneously slidably installed on PET filter core, the connecting buckle is composed of connecting block, elastic plate and connecting buckle block, the elastic plate is fixedly installed on the upper end of connecting block, the connecting buckle block is fixedly installed on the inner end of elastic plate, PET filter core is installed on the bottom plate through replacement structure main part, the bottom plate is fixedly installed in air purifier.

[0007] Preferably, the PET filter core is composed of a filter core body and an end cap, and the end cap is symmetrically fixedly sleeved on the filter core body.

[0008] Preferably, the outer wall of the lower end cap is symmetrically fixedly installed with two first handles, and the outer wall of the lower end cap is symmetrically provided with two guide grooves.

[0009] Preferably, the upper end of the bottom plate is annularly provided with a plurality of mounting blind holes.

[0010] Preferably, the sleeve ring on the replacement structure main part is movably sleeved on the lower end cap, the base ring is located on the lower inner wall of the sleeve ring, the spring is located below the lower end cap, the insert post is fixedly connected with the base ring, and the insert post is simultaneously inserted into the mounting blind hole provided on the upper end of the bottom plate.

[0011] Preferably, the connecting block on the connecting buckle is fixedly installed on the outer wall of the sleeve ring, and the connecting buckle block is movably embedded in the guide groove provided on the outer wall of the lower end cap.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By setting the replacement structure main part on the PET filter core, setting the connecting buckle on the replacement structure main part, and making the replacement structure main part cooperate with the bottom plate and the air purifier, the disassembly and assembly of the PET filter core are relatively simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure schematic view of the PET filter core installation in the air purifier of the utility model;

[0015] Figure 2 It is the structure schematic view of the replacement structure main body and bottom plate split after of the utility model;

[0016] Figure 3 It is the overhead view of the replacement structure main body and connecting buckle of the utility model;

[0017] Figure 4 It is the bottom view of the replacement structure main body and connecting buckle of the utility model.

[0018] In the drawing: 1, replacement structure main body, 2, PET filter core, 3, bottom plate, 4, air purifier, 5, connecting buckle, 6, installation blind hole, 7, filter core main body, 8, end cover, 9, first handle, 10, guide rail slot, 11, sleeve ring, 12, second handle, 13, base ring, 14, spring, 15, insertion column, 16, connecting block, 17, elastic plate, 18, connecting buckle block. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0020] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a PET layer filter core replacement structure includes a replacement structure body 1, a PET filter core 2 movably sleeved on the replacement structure body 1, the replacement structure body 1 is composed of a sleeve ring 11, a second handle 12, a base ring 13, a spring 14 and a plug column 15, the second handle 12 is two and symmetrically fixedly installed on the outer wall of the sleeve ring 11, the base ring 13 is fixedly installed on the inner wall of the sleeve ring 11, the spring 14 is fixedly installed on the upper end of the base ring 13, the plug column 15 is annularly distributed on the lower end of the base ring 13, two connecting buckles 5 are symmetrically fixedly installed on the outer wall of the sleeve ring 11, the connecting buckles 5 are simultaneously slidably installed on the PET filter core 2, the connecting buckles 5 are composed of a connecting block 16, an elastic plate 17 and a connecting clamping block 18, the elastic plate 17 is fixedly installed on the upper end of the connecting block 16, the connecting clamping block 18 is fixedly installed on the inner end of the elastic plate 17, the PET filter core 2 is installed on a bottom plate 3 through the replacement structure body 1, the bottom plate 3 is fixedly installed in an air purifier 4, the replacement structure body 1 is arranged on the PET filter core 2, the connecting buckles 5 are arranged on the replacement structure body 1, the replacement structure body 1 is matched with the bottom plate 3 and the air purifier 4, and the PET filter core 2 is relatively simple and convenient to disassemble and assemble, when the PET filter core 2 is disassembled, only the plug column 15 on the replacement structure body 1 is pulled out of the bottom plate 3, then the PET filter core 2 is separated from the replacement structure body 1 through the connecting buckles 5, when the PET filter core 2 is installed, only the connecting buckles 5 are connected with the PET filter core 2, the replacement structure body 1 is sleeved on the PET filter core 2, finally the plug column 15 on the replacement structure body 1 is inserted into the bottom plate 3, so that the replacement of the PET filter core 2 is relatively convenient.

[0021] Specific, PET filter core 2 is composed of filter core body 7 and end cap 8, end cap 8 has two and is symmetrically fixed on filter core body 7, the outer wall of the lower end cap 8 is symmetrically fixed with two first handles 9, the outer wall of the lower end cap 8 is symmetrically provided with two guide grooves 10, the upper end of the bottom plate 3 is annularly provided with a plurality of mounting blind holes 6, the sleeve 11 on the replacement structure body 1 is movably sleeved on the lower end cap 8, the base ring 13 is located on the lower inner wall of the sleeve 11, the spring 14 is located below the lower end cap 8, the insertion column 15 is fixedly connected with the base ring 13, and the insertion column 15 is simultaneously inserted into the mounting blind hole 6 provided on the upper end of the bottom plate 3, when the PET filter core 2 is installed in the air purifier 4, the upper end of the PET filter core 2 is in contact with the upper inner wall of the air purifier 4, when the PET filter core 2 is disassembled from the air purifier 4, first, simultaneously hold the first handle 9 and the second handle 12, then push the second handle 12 towards the first handle 9, at this time, the second handle 12 will move upwards with the sleeve 11, the base ring 13 and the insertion column 15, so that the base ring 13 cooperates with the PET filter core 2 to compress the spring 14, when the insertion column 15 moves out of the mounting blind hole 6 provided on the upper end of the bottom plate 3, the PET filter core 2, the replacement structure body 1 and the connecting buckle 5 can be taken out of the air purifier 4; when it is needed to install the PET filter core 2 into the air purifier 4, first, push the second handle 12 towards the first handle 9, so that the base ring 13 cooperates with the PET filter core 2 to compress the spring 14, then the PET filter core 2, the replacement structure body 1 and the connecting buckle 5 can be moved into the air purifier 4, finally, release the first handle 9 and the second handle 12, at this time, under the elastic force of the spring 14, the sleeve 11, the second handle 12, the base ring 13 and the insertion column 15 will move downwards, finally, the insertion column 15 is inserted into the mounting blind hole 6.

[0022] Specific, the connecting block 16 on the connecting buckle 5 is fixedly installed on the outer wall of the sleeve 11, the connecting block 18 is movably embedded in the guide groove 10 provided on the outer wall of the lower end cap 8, when the second handle 12 is pushed towards the first handle 9, or the sleeve 11, the second handle 12, the base ring 13 and the insertion column 15 move downwards under the elastic force of the spring 14, the connecting block 18 will slide in the guide groove 10, when the PET filter core 2 is replaced, when it is needed to separate the PET filter core 2 and the replacement structure body 1, the connecting block 18 can be buckled outwards, so that the connecting block 18 moves out of the guide groove 10, at this time, the elastic plate 17 will bend outwards to produce elastic deformation, when it is needed to install the PET filter core 2 and the replacement structure body 1 together, the sleeve 11 on the replacement structure body 1 can be sleeved on the PET filter core 2, and the connecting block 18 is embedded in the guide groove 10 under the elastic force of the elastic plate 17.

[0023] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application. The protection scope of the present application is defined by the appended claims and equivalents thereof.

Claims

1. A PET layer filter element replacement structure, characterized in that: The device includes a replacement structure body (1), on which a PET filter element (2) is movably fitted. The replacement structure body (1) consists of a collar (11), a second handle (12), a base ring (13), a spring (14), and inserts (15). There are two second handles (12) symmetrically fixedly installed on the outer wall of the collar (11). The base ring (13) is fixedly installed on the inner wall of the collar (11). The spring (14) is fixedly installed on the upper end of the base ring (13). There are several inserts (15) arranged in a ring around the lower part of the base ring (13). At the end, two connecting buckles (5) are symmetrically fixed on the outer wall of the collar (11). The connecting buckles (5) are simultaneously slidably installed on the PET filter element (2). The connecting buckle (5) is composed of a connecting block (16), an elastic plate (17) and a connecting block (18). The elastic plate (17) is fixedly installed on the upper end of the connecting block (16), and the connecting block (18) is fixedly installed on the inner end of the elastic plate (17). The PET filter element (2) is installed on the base plate (3) by replacing the main body (1). The base plate (3) is fixedly installed inside the air purifier (4).

2. The PET layer filter element replacement structure according to claim 1, characterized in that: The PET filter element (2) consists of a filter element body (7) and end caps (8). There are two end caps (8) that are symmetrically fixedly fitted onto the filter element body (7).

3. The PET layer filter element replacement structure according to claim 2, characterized in that: Two first handles (9) are symmetrically fixed on the outer wall of the lower end cap (8), and two guide rail grooves (10) are symmetrically opened on the outer wall of the lower end cap (8).

4. The PET layer filter element replacement structure according to claim 3, characterized in that: The upper end of the base plate (3) is provided with a number of blind holes (6) in a ring shape.

5. The PET layer filter element replacement structure according to claim 4, characterized in that: The collar (11) on the main body (1) of the replacement structure is movably fitted on the lower end cap (8). The base ring (13) is located on the lower inner wall of the collar (11). The spring (14) is located below the lower end cap (8). The insert (15) is fixedly connected to the base ring (13), and the insert (15) is also inserted into the blind hole (6) opened at the upper end of the base plate (3).

6. The PET layer filter replacement structure according to claim 5, characterized in that: The connecting block (16) on the connecting buckle (5) is fixedly installed on the outer wall of the collar (11), and the connecting block (18) is movably embedded in the guide groove (10) opened on the outer wall of the lower end cover (8).