Folding sleeving type filter element

By introducing a snap-fit ​​structure of plug-in blocks, snap plates, and protrusions into the folded set filter cartridge, combined with the design of the mounting plate and sleeve, the problem of inconvenient filter cartridge disassembly and assembly is solved, enabling convenient replacement of filter cotton and improving the stability of the filter cartridge.

CN224056798UActive Publication Date: 2026-03-31SHANGHAI BAOHUI ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing folded filter cartridges are inconvenient to install and remove the filter cotton during regular replacement, resulting in inconvenience in use.

Method used

A structure including a first frame, folded filter cotton, a second frame, a snap plate, a protrusion, and a plug-in block is designed. By engaging the plug-in block with the snap plate and the protrusion, combined with the use of the mounting plate and the sleeve, the filter element is designed to be detachable, ensuring convenient replacement of the folded filter cotton.

Benefits of technology

It enables convenient disassembly and assembly of the filter element, improves the ease of filter cotton replacement, and enhances the sealing and stability of the filter element.

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Abstract

The utility model relates to the technical field of folding sleeve type filter elements, and discloses a folding sleeve type filter element which comprises a first framework, folding filter cotton is sleeved on the outer side of the first framework, and two second frameworks are buckled on the outer side of the folding filter cotton; a plurality of openings are formed in the walls of the second framework and the first framework; a plurality of buckle plates are fixedly arranged in an inner cavity between the second framework and the first framework, and two protruding blocks are fixedly arranged on one side of each buckle plate. Inserting blocks are inserted in the positions, close to the two ends, of an inner cavity between the first framework and the second framework, and the inserting blocks are internally provided with parts allowing the buckling plates to be connected with the protruding blocks in an inserted mode. Wherein one inserting block is connected with a bottom plate, the other inserting block is connected with a connecting structure, a water guide pipe is arranged on the connecting structure in a penetrating mode, and the water guide pipe is communicated with the interior of the folding sleeving type filter element. The folding sleeve type filter element is convenient to disassemble and assemble, so that the folding filter cotton is convenient to replace.
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Description

Technical Field

[0001] This utility model relates to the field of foldable filter cartridge technology, specifically a foldable filter cartridge. Background Technology

[0002] Pleated filter cartridges are high-efficiency filter elements widely used in various filtration systems. Through their multi-layered pleated structure, pleated filter cartridges increase the filtration area, improving filtration efficiency and capacity. They typically use polypropylene composite filter membranes as the main filter material. These cartridges are manufactured using a unique hot-melt welding process, without any adhesives, ensuring no foreign matter is released. They are suitable for industries such as food, beverage, chemical, and pharmaceutical. However, the currently available pleated cartridge sets are inconvenient to replace during regular use due to the difficulty in disassembling and replacing the filter cotton. Therefore, there is a need to research and develop a pleated cartridge set that facilitates practical use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a foldable kit filter element that facilitates the disassembly and replacement of filter cotton.

[0004] The technical solution of this utility model is a foldable sleeve-type filter element, including a first frame, a folded filter cotton sleeve on the outside of the first frame, and two second frames fastened to the outside of the folded filter cotton; multiple openings are provided on the walls of both the second and first frames; multiple fastening plates are fixedly provided in the inner cavity between the second and first frames, and two protrusions are fixedly provided on one side of each fastening plate; insertion blocks are inserted into the inner cavity between the first and second frames near both ends, and the insertion blocks have internal parts for the fastening plates and protrusions to be inserted into;

[0005] One of the plug-in blocks is connected to a base plate, and the other plug-in block is connected to a connecting structure. A water guide pipe is installed through the connecting structure and communicates with the interior of the folded, fitted filter element. When the folded, fitted filter element is connected, the buckle and protrusion are fastened inside the plug-in block. The bottom of the plug-in block has an integrally machined base plate.

[0006] The first and second skeletons have multiple openings, and their internal cavities are interconnected.

[0007] According to a foldable, fitted filter element of this utility model, preferably, the connecting structure includes a mounting plate, the mounting plate being connected to a sleeve which is fitted around the outer periphery of two second frames; the mounting plate is fixedly connected to the insertion block; the sleeve is connected to a snap-fit ​​device for fastening to the inner wall of the second frame. When one end of the mounting plate is placed upwards, the insertion block is located at the bottom of the mounting plate.

[0008] Furthermore, the inner wall of the sleeve is provided with a sealing ring.

[0009] Furthermore, the inner wall of the sleeve is provided with a snap groove, and the sealing ring is snapped into the snap groove.

[0010] Furthermore, the snap-fit ​​device includes an elastic plate connected to the bottom of the sleeve, with a snap-fit ​​plate connected to one end of the elastic plate. Multiple elastic plates are included. The elastic plates and snap-fit ​​plates can be integrally machined. The snap-fit ​​plate fastens to the inner wall of the second frame.

[0011] Furthermore, the water guide pipe is installed through the mounting plate.

[0012] Furthermore, the top of the mounting plate is provided with reinforcing ribs, and one side of the reinforcing ribs is fixedly connected to the water guide pipe.

[0013] Furthermore, a through hole is provided on the top of the mounting plate, and the water guide pipe is connected to the through hole.

[0014] According to the present invention, a foldable set-type filter element is preferably provided with insertion slots on both sides of the insertion block, and the buckle plate and the protrusion are inserted into the insertion slots.

[0015] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0016] This utility model, by setting up folded filter cotton, second frame, buckle plate, protrusion and plug-in block, allows for the following usage: the folded filter cotton is placed on the outside of the first frame, then the two second frames are placed on the outside of the folded filter cotton, and the plug-in block is fastened into the inner cavity between the first and second frames to limit the position of the second frame. The mounting plate is installed on the top of the second frame through the plug-in block, and the elastic plate at the bottom of the sleeve and the buckle plate fasten to the inner wall of the second frame, facilitating the disassembly and assembly of the second frame and thus facilitating the replacement of the folded filter cotton. Attached Figure Description

[0017] Figure 1 This is a side view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the connection structure between the first frame and the plug-in block of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. First frame; 2. Folded filter cotton; 3. Second frame; 4. Buckle plate; 5. Protrusion; 6. Insert block; 7. Base plate; 8. Mounting plate; 9. Sleeve; 10. Sealing ring; 11. Elastic plate; 12. Buckle plate; 13. Water guide pipe. Detailed Implementation

[0021] 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.

[0022] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0023] Example

[0024] In the existing technology, the folded filter cartridges currently used in the market are inconvenient to disassemble and replace when changing them regularly, which leads to inconvenience in use.

[0025] Please see Figure 1-3 This utility model provides a technical solution: a foldable filter cartridge, including a first frame 1, a foldable filter cotton 2 on the outside of the first frame 1, two second frames 3 fastened to the outside of the foldable filter cotton 2, multiple fastening plates 4 fixedly arranged inside the two second frames 3, and two protrusions 5 fixedly arranged on one side of each of the multiple fastening plates 4. Insertion blocks 6 are inserted into the upper and lower ends of the inner cavity between the first frame 1 and the second frames 3. The fastening plates 4 and protrusions 5 are fastened inside the insertion blocks 6. The bottom of one insertion block 6 is integrally machined with a bottom plate 7, and the top of the other insertion block 6 is provided with a connecting structure. In use, the foldable filter cotton 2 is put on the outside of the first frame 1, then the two second frames 3 are covered on the outside of the foldable filter cotton 2, and then the insertion blocks 6 are fastened into the inner cavity between the first frame 1 and the second frames 3. The fastening plates 4 and protrusions 5 on the inner wall of the second frames 3 will be fastened inside the insertion blocks 6, thereby limiting the second frames 3, facilitating disassembly and assembly, and thus facilitating the replacement of the foldable filter cotton 2.

[0026] The connection structure includes a mounting plate 8, which is fixedly mounted on the top of the plug-in block 6. A sleeve 9 is integrally machined on the bottom of the mounting plate 8 and is fastened to the outside of the two second frames 3. A sealing ring 10 is fastened to the inner wall of the sleeve 9. Multiple elastic plates 11 are fixedly provided on the bottom of the sleeve 9. A buckle plate 12 is integrally machined on one end of the multiple elastic plates 11 and is fastened to the inner wall of the second frame 3. A water guide pipe 13 is fixedly connected to the top of the mounting plate 8. In use, the mounting plate 8 is installed on the top of the second frame 3 through the plug-in block 6. The sleeve 9 at the bottom of the mounting plate 8 is fitted onto the outside of the second frame 3. At the same time, the elastic plates 11 and buckle plates 12 at the bottom of the sleeve 9 are fastened to the inner wall of the second frame 3, thereby fixing the two second frames 3. The sealing ring 10 inside the sleeve 9 improves the sealing between the sleeve 9 and the second frame 3.

[0027] Both sides of the plug-in block 6 are provided with plug-in slots. The buckle plate 4 and the protrusion 5 are plugged into the plug-in slots. The two second skeletons 3 are limited and fixed by the plug-in block 6.

[0028] The top of the mounting plate 8 is provided with a reinforcing rib, and one side of the reinforcing rib is fixedly connected to the water pipe 13 to improve the stability of the water pipe 13.

[0029] The top of the mounting plate 8 has a through hole, and the water pipe 13 is connected to the through hole to drain water.

[0030] The inner wall of the sleeve 9 is provided with a snap groove, and the sealing ring 10 is snapped into the snap groove to improve the sealing between the sleeve 9 and the second skeleton 3.

[0031] The working principle or structural principle is as follows: In use, the folded filter cotton 2 is placed on the outside of the first frame 1, and then the two second frames 3 are placed on the outside of the folded filter cotton 2. Then, the plug-in block 6 is fastened into the inner cavity between the first frame 1 and the second frame 3. The buckle plate 4 and protrusion 5 on the inner wall of the second frame 3 will be fastened into the inside of the plug-in block 6, thereby limiting the second frame 3. The mounting plate 8 is installed on the top of the second frame 3 through the plug-in block 6. The sleeve 9 at the bottom of the mounting plate 8 is placed on the outside of the second frame 3. At the same time, the elastic plate 11 and buckle plate 12 at the bottom of the sleeve 9 are fastened to the inner wall of the second frame 3, thereby fixing the two second frames 3. The sealing ring 10 inside the sleeve 9 improves the sealing between the sleeve 9 and the second frame 3, making it easy to disassemble and assemble the second frame 3, and thus making it easy to replace the folded filter cotton 2.

[0032] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A folded-in-pack filter cartridge comprising a first skeleton (1), characterized in that: The first skeleton (1) is sleeved with a folded filter cotton (2), and the outer side of the folded filter cotton (2) is buckled with two second skeletons (3); the second skeleton (3) and the first skeleton (1) are both provided with a plurality of openings on the wall; a plurality of first buckling plates (4) are fixedly arranged in the inner cavity between the second skeleton (3) and the first skeleton (1), and each first buckling plate (4) is fixedly provided with two protrusions (5) on one side; the inner cavity between the first skeleton (1) and the second skeleton (3) is inserted with an insertion block (6) near both ends, and the insertion block (6) is internally provided with a position for inserting the first buckling plate (4) and the protrusion (5). One of the insertion blocks (6) is connected with a bottom plate (7), and the other insertion block is connected with a connecting structure, the connecting structure is provided with a water guide pipe (13) penetrating through, and the water guide pipe (13) is in communication with the inside of the folded sleeved filter core.

2. The fold-and-wrap filter cartridge of claim 1 wherein: The connecting structure comprises a mounting plate (8), the mounting plate (8) is connected with a sleeve (9) and the sleeve (9) is sleeved on the outer periphery of the two second skeletons (3); the mounting plate (8) is fixedly connected with the insertion block (6); the sleeve (9) is connected with a buckle device for buckling on the inner wall of the second skeleton.

3. A fold and wrap filter cartridge according to claim 2 wherein: The inner wall of the sleeve (9) is provided with a sealing ring (10).

4. The fold-and-wrap filter cartridge of claim 3 wherein: The inner wall of the sleeve (9) is provided with a buckling groove, and the sealing ring (10) is buckled in the buckling groove.

5. The fold-and-wrap filter cartridge of claim 2 wherein: The buckle device comprises an elastic plate (11) connected to the bottom of the sleeve (9), and the second buckling plate (12) is connected to one end of the elastic plate (11).

6. The fold-and-wrap filter cartridge of claim 2 wherein: The water guide pipe (13) is provided on the mounting plate (8) penetratingly.

7. The fold-and-wrap filter cartridge of claim 2 wherein: The top of the mounting plate (8) is provided with a reinforcing rib, and one side of the reinforcing rib is fixedly connected with the water guide pipe (13).

8. The fold-and-wrap filter cartridge of claim 2 wherein: The top of the mounting plate (8) is provided with a through hole, and the water guide pipe (13) is in communication with the through hole.

9. The fold-and-wrap filter cartridge of claim 1 wherein: Both sides of the insertion block (6) are provided with an insertion groove, and the first buckling plate (4) and the protrusion (5) are inserted in the insertion groove.