A reverse osmosis cartridge

By introducing an auxiliary filtration mechanism into the filter cartridge, the problem of decreased filtration effect caused by clogging of traditional filter cartridges is solved, enabling convenient replacement and secondary filtration, and improving the filtration effect and service life of the water purifier.

CN224388167UActive Publication Date: 2026-06-23SHANGHAI WANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI WANCHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Filing Date
2025-05-19
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The fixed internal structure of traditional filter cartridges leads to a decrease in filtration efficiency after clogging, affecting drinking water quality and increasing replacement costs.

Method used

A reverse osmosis filter cartridge was designed, which includes an auxiliary filtration mechanism. The filter screen plate, connected by a telescopic rod, movable ring block and spring, can be easily installed and disassembled, thereby enhancing the secondary filtration effect.

Benefits of technology

It improves the filtration efficiency and ease of use of the filter element, extends its service life, and reduces the frequency of replacement.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224388167U_ABST
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Abstract

The utility model discloses a kind of reverse osmosis filter elements, including filter element body, sealing ring is arranged on the filter element body, drain pipe is arranged on the filter element body, the inside fixed mounting of drain pipe has first fixed ring block, auxiliary filtering mechanism is arranged in the drain pipe, the auxiliary filtering mechanism includes the fixed mounting of two telescopic rods in the first fixed ring block bottom, the telescopic end of two telescopic rods is fixedly connected with the same movable ring block, two springs are fixedly connected between the movable ring block and the first fixed ring block, movable bucket is fixedly installed in the top of movable ring block. The utility model is installed and disassembled to filter screen plate by setting auxiliary filtering mechanism, improve the practicability when using, it is easy to replace maintenance to filter screen plate, by setting filter screen plate, the treated water in drain pipe can be secondary filtered, improve filtering effect.
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Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a reverse osmosis filter element. Background Technology

[0002] Water purifier filter cartridges use various physical, chemical, or biological methods to filter or kill impurities, harmful substances, bacteria, viruses, etc. in tap water, providing clean and safe drinking water.

[0003] The filtration efficiency of traditional filter cartridges is limited by their internal structure. Because the internal channels are fixed, the filtration effect drops significantly once the cartridge becomes clogged with contaminants. This not only affects drinking water quality but can also lead to premature filter failure, increasing replacement costs for users. To improve the filtration efficiency of filter cartridges, we have proposed a reverse osmosis filter cartridge. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reverse osmosis filter element.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reverse osmosis filter element includes a filter element body, a sealing ring disposed on the filter element body, a drain pipe disposed on the filter element body, a first fixing ring block fixedly installed inside the drain pipe, and an auxiliary filtration mechanism disposed inside the drain pipe.

[0007] Preferably, the auxiliary filtration mechanism includes two telescopic rods fixedly installed at the bottom of the first fixed ring block, a movable ring block fixedly connected to the telescopic ends of the two telescopic rods, two springs fixedly connected between the movable ring block and the first fixed ring block, a movable bucket fixedly installed at the top of the movable ring block, a second fixed ring block fixedly connected to the inner wall of the drain pipe on the side of the movable ring block away from the first fixed ring block, two symmetrically arranged slots on the side wall of the second fixed ring block near the movable ring block, two symmetrically arranged mounting slots on the second fixed ring block, a filter screen plate inside the second fixed ring block, and two locking blocks fixedly installed on the outer wall of the filter screen plate.

[0008] Preferably, the movable bucket is located within the first fixed ring block.

[0009] Preferably, the card slot and the mounting slot are the same size.

[0010] Preferably, the card block is compatible with both the card slot and the mounting slot.

[0011] Preferably, the card block and the filter plate are integrally formed.

[0012] The beneficial effects of this utility model are:

[0013] By setting up an auxiliary filtration mechanism, the filter screen can be installed and disassembled more easily, improving its practicality during use and making it easier to replace and maintain. By setting up the filter screen, the treated water in the drain pipe can be filtered a second time, improving the filtration effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a reverse osmosis filter element proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of a reverse osmosis filter element proposed in this utility model;

[0016] Figure 3 Appendix to this utility model Figure 2 Enlarged structural diagram at point A;

[0017] Figure 4 This is a three-dimensional structural diagram of the second fixing ring block, the slot, and the mounting groove of this utility model;

[0018] Figure 5 This is a three-dimensional structural diagram of the internal structure of the filter element body of this utility model.

[0019] In the diagram: 1 Filter cartridge body, 2 Drain pipe, 3 Sealing ring, 4 First fixing ring block, 5 Telescopic rod, 6 Spring, 7 Locking block, 8 Filter screen plate, 9 Locking groove, 10 Movable ring block, 11 Movable hopper, 12 Second fixing ring block, 13 Installation groove, 101 Outer sealing layer, 102 Raw water guide net, 103 Reverse osmosis membrane layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A reverse osmosis filter element includes a filter element body 1. The filter element body 1 is provided with an outer sealing layer 101, a raw water guide net 102 and a reverse osmosis membrane layer 103. This is the prior art and will not be described in detail. A sealing ring 3 is provided on the filter element body 1. A drain pipe 2 is provided on the filter element body 1. A first fixing ring block 4 is fixedly installed inside the drain pipe 2. An auxiliary filtration mechanism is provided inside the drain pipe 2.

[0022] The auxiliary filtration mechanism includes two telescopic rods 5 fixedly installed at the bottom of the first fixed ring block 4. The same movable ring block 10 is fixedly connected to the telescopic ends of the two telescopic rods 5. Two springs 6 are fixedly connected between the movable ring block 10 and the first fixed ring block 4. A movable bucket 11 is fixedly installed at the top of the movable ring block 10. A second fixed ring block 12 is provided on the side of the movable ring block 10 away from the first fixed ring block 4 and is fixedly connected to the inner wall of the drain pipe 2. Two symmetrically arranged slots 9 are opened on the side wall of the second fixed ring block 12 near the movable ring block 10. Two symmetrically arranged mounting slots 13 are opened on the second fixed ring block 12. A filter screen plate 8 is provided inside the second fixed ring block 12. Two locking blocks 7 are fixedly installed on the outer side wall of the filter screen plate 8. The movable bucket 11 is located inside the first fixed ring block 4. The slots 9 and mounting slots 13 are the same size. The locking blocks 7 are adapted to both the slots 9 and mounting slots 13. The locking blocks 7 are integrally formed with the filter screen plate 8.

[0023] In use, the two locking blocks 7 on the filter plate 8 pass through the two mounting slots 13 respectively, positioning the filter plate 8 between the movable ring block 10 and the second fixed ring block 12. When the filter plate 8 is positioned between the movable ring block 10 and the second fixed ring block 12, the telescopic rod 5 retracts, compressing the spring 6. Then, the filter plate 8 and the locking blocks 7 are rotated by a certain angle, aligning the two locking blocks 7 with the two locking slots 9 respectively. Finally, the elastic force generated by the compression of the spring 6 causes the two locking blocks 7 to engage with the two locking slots 9 respectively (as shown in the attached diagram). Figure 3 (As shown in the figure) The movable ring block 10 presses the locking block 7 to fix the filter screen plate 8. When the filter element body 1 filters the wastewater and the filtered treated water enters the drain pipe 2, the filter screen plate 8 can perform secondary filtration of the treated water to improve the filtration effect. At the same time, the filter screen plate 8 can be disassembled through the above reverse operation, which is convenient to use.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reverse osmosis filter element, comprising a filter element body (1), characterized in that, A sealing ring (3) is provided on the filter element body (1), and a drain pipe (2) is provided on the filter element body (1). A first fixed ring block (4) is fixedly installed inside the drain pipe (2). An auxiliary filtration mechanism is provided inside the drain pipe (2). The auxiliary filtration mechanism includes two telescopic rods (5) fixedly installed at the bottom of the first fixed ring block (4). The telescopic ends of the two telescopic rods (5) are fixedly connected to the same movable ring block (10). Two springs (6) are fixedly connected between the movable ring block (10) and the first fixed ring block (4). A movable bucket (11) is fixedly installed on the top of the movable ring block (10). A second fixed ring block (12) is fixedly connected to the inner wall of the drain pipe (2) on the side of the movable ring block (10) away from the first fixed ring block (4). Two symmetrically arranged slots (9) are opened on the side wall of the second fixed ring block (12) close to the movable ring block (10). Two symmetrically arranged mounting slots (13) are opened on the second fixed ring block (12). A filter plate (8) is provided inside the second fixed ring block (12). Two locking blocks (7) are fixedly installed on the outer side wall of the filter plate (8).

2. A reverse osmosis filter element according to claim 1, characterized in that, The movable bucket (11) is located inside the first fixed ring block (4).

3. A reverse osmosis filter element according to claim 1, characterized in that, The card slot (9) and the mounting slot (13) are the same size.

4. A reverse osmosis filter element according to claim 1, characterized in that, The card block (7) is compatible with both the card slot (9) and the mounting slot (13).

5. A reverse osmosis filter element according to claim 1, characterized in that, The card block (7) and the filter plate (8) are integrally formed.