A ro cartridge
By setting an adjustment component on the filter cartridge body, the problem of water flow being difficult to adjust in the existing technology is solved, enabling flexible adjustment according to user needs and improving ease of use.
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
- 2026-07-10
AI Technical Summary
In the prior art, the flow rate of water in the inlet pipe of the filter cartridge is difficult to adjust during use, making it inconvenient for different users to adjust it according to their own needs for water quality and flow rate.
The flow rate of the inlet pipe can be adjusted by setting adjustment components on the filter element body, including threaded rods, drive blocks, passive blocks, inner grooves, guide rods and sliders. The water flow rate can be adjusted by turning the knob.
It enables flexible adjustment of water flow and water quality according to user needs, improving the convenience of use.
Smart Images

Figure CN224477974U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of filter technology, and in particular to an RO filter. Background Technology
[0002] Water purifier filter cartridges effectively remove impurities and pollutants from water, such as sediment, rust, suspended solids, colloids, large molecular organic matter, bacteria, viruses, and heavy metals, through physical or chemical methods, thereby ensuring the safety and purity of the water.
[0003] The flow rate of water in the inlet pipe of existing filter cartridges is difficult to adjust during use, and the flow rate of water has a certain impact on the filtration effect of the filter cartridge. As a result, it is difficult for different users to adjust according to their own needs for water quality and flow rate, which is inconvenient to use. Utility Model Content
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an RO filter element.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] An RO filter element includes a filter element body, a sealing ring and an outer layer of adhesive tape on the filter element body, a water inlet pipe on the filter element body, a housing fixedly installed on the water inlet pipe, a rotating pipe rotatably connected between the inner walls of the two sides of the water inlet pipe, an adjusting block fixedly installed on the outer wall of the rotating pipe, a through hole communicating with the housing and the rotating pipe on the water inlet pipe, and an adjusting assembly on the housing.
[0007] Preferably, the adjusting component has a threaded rod that passes through the outer wall of one side of the housing. One end of the threaded rod is rotatably connected to a drive block located inside the housing, and the other end of the threaded rod is fixedly installed with a knob located outside the housing. A passive block is provided inside the housing, and an inner groove is formed on the passive block. A round rod is fixedly installed on one side wall of the passive block. The round rod passes through a through hole and extends into the rotating tube. An outer sliding groove is formed on the outer side wall of the round rod, and an inner sliding block is fixedly installed on the inner wall of the rotating tube.
[0008] Preferably, two guide rods are fixedly installed on one inner wall of the housing, and two guide grooves are formed on one side wall of the drive block. The two guide rods are respectively located in the two guide grooves and are adapted to the two guide grooves respectively.
[0009] Preferably, the cross-sections of the drive block and the inner groove are both right-angled trapezoidal shapes, and the inclined surface of the drive block is adapted to the inclined surface of the inner groove.
[0010] Preferably, two telescopic rods are fixedly installed on the inner wall of the housing near the rotating tube. A fixing block is fixedly installed on the telescopic end of each of the two telescopic rods. Both fixing blocks are fixedly connected to the passive block. A tension spring is fixedly connected between each of the two fixing blocks and the inner wall of the housing.
[0011] Preferably, the outer slide groove is spiral-shaped, and the inner slider is located inside the outer slide groove and is slidably connected to the outer slide groove.
[0012] The beneficial effects of this utility model are:
[0013] By setting up an adjustment component, the adjustment block can be rotated by rotating the knob, thereby adjusting the water flow rate in the inlet pipe. The operation is simple and convenient, thus meeting the needs of different users for water quality and flow rate, and is easy to use. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of an RO filter element proposed in this utility model;
[0015] Figure 2 This is a schematic diagram of the planar structure of the water inlet pipe and the housing of this utility model;
[0016] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;
[0017] Figure 4 This is a top view of the internal structure of the shell and water inlet pipe of this utility model;
[0018] Figure 5 This is a three-dimensional structural diagram of the passive block and inner groove of this utility model;
[0019] Figure 6 This is a three-dimensional structural diagram of the internal structure of the filter element body of this utility model.
[0020] In the diagram: 1. Filter cartridge body, 2. Outer tape, 3. Inlet pipe, 4. Housing, 5. Knob, 6. Threaded rod, 7. Guide rod, 8. Drive block, 9. Passive block, 10. Inner groove, 11. Through hole, 12. Rotating tube, 13. Adjusting block, 14. Round rod, 15. Outer sliding groove, 16. Inner slider, 17. Tension spring, 18. Sealing ring, 19. Fixing block, 20. Telescopic rod, 21. Guide groove, 22. Outer sealing layer, 23. Pre-filter composite carbon fiber membrane, 24. RO membrane, 25. Post-filter carbon fiber membrane, 26. Post-filter PP cotton filter membrane, 27. Water-permeable mesh membrane. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Reference Figures 1-5 An RO filter element includes a filter element body 1, on which a sealing ring 18 and an outer tape 2 are provided. Inside the filter element body 1, there are an outer sealing layer 22, a pre-filter composite carbon fiber membrane 23, an RO membrane 24, a post-filter carbon fiber membrane 25, a post-filter PP cotton filter membrane 26, and a water-permeable mesh membrane 27. This is prior art and will not be described in detail. The filter element body 1 is provided with an inlet pipe 3, and a housing 4 is fixedly installed on the inlet pipe 3. A rotating pipe 12 is rotatably connected between the inner walls of the two sides of the inlet pipe 3. An adjusting block 13 is fixedly installed on the outer wall of the rotating pipe 12. The inlet pipe 3 is provided with a through hole 11 that communicates with the housing 4 and the rotating pipe 12. An adjusting component is provided on the housing 4.
[0023] An adjusting component is mounted on a threaded rod 6 that runs through the outer wall of one side of the housing 4. One end of the threaded rod 6 is rotatably connected to a drive block 8 located inside the housing 4, and the other end of the threaded rod 6 is fixedly mounted to a knob 5 located outside the housing 4. A passive block 9 is provided inside the housing 4, and an inner groove 10 is formed on the passive block 9. A round rod 14 is fixedly mounted on one side wall of the passive block 9. The round rod 14 passes through a through hole 11 and extends into a rotating tube 12. An outer sliding groove 15 is formed on the outer side wall of the round rod 14. An inner sliding block 16 is fixedly mounted on the inner wall of the rotating tube 12. Two guide rods 7 are fixedly mounted on one side inner wall of the housing 4, and two guide rods 7 are formed on one side wall of the drive block 8. The groove 21 has two guide rods 7 located in the two guide grooves 21 and adapted to the two guide grooves 21 respectively. The cross-section of the drive block 8 and the inner groove 10 is a right trapezoid. The inclined surface of the drive block 8 is adapted to the inclined surface of the inner groove 10. Two telescopic rods 20 are fixedly installed on the inner wall of the housing 4 near the rotating tube 12. The telescopic ends of the two telescopic rods 20 are fixedly installed with fixing blocks 19. The two fixing blocks 19 are fixedly connected to the passive block 9. Tension springs 17 are fixedly connected between the two fixing blocks 19 and the inner wall of the housing 4. The outer slide groove 15 is spiral. The inner slider 16 is located in the outer slide groove 15 and is slidably connected to the outer slide groove 15.
[0024] In use, rotating the knob 5 causes the threaded rod 6 to rotate forward. The guide rod 7 and guide groove 21 prevent the drive block 8 from rotating, and the threaded rod 6 is rotatably connected to the drive block 8, allowing the drive block 8 to move forward. During this forward movement, the inclined surface of the drive block 8 engages with the inclined surface of the inner groove 10, causing the passive block 9 to move away from the rotating tube 12. The passive block 9 drives the round rod 14. During the movement of the passive block 9 and the round rod 14, the fixed block 19 and extension... The retractable rod 20 and the tension spring 17 prevent the passive block 9 and the round rod 14 from rotating. When the tension spring 17 is stretched, the inner slider 16 slides in the spiral outer groove 15 during the movement of the round rod 14, thereby enabling the rotating tube 12 and the adjusting block 13 to rotate in one direction. This allows the flow rate of water in the inlet pipe 3 to be adjusted to meet the needs of different situations. When the knob 5 is turned to rotate the threaded rod 6 in the opposite direction, the tension generated by the stretching of the tension spring 17 will cause the rotating tube 12 and the adjusting block 13 to rotate in the other direction.
[0025] 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. An RO filter element, comprising a filter element body (1), characterized in that, The filter element body (1) is provided with a sealing ring (18) and an outer layer of adhesive tape (2). The filter element body (1) is provided with a water inlet pipe (3). A housing (4) is fixedly installed on the water inlet pipe (3). A rotating pipe (12) is rotatably connected between the inner walls on both sides of the water inlet pipe (3). An adjusting block (13) is fixedly installed on the outer wall of the rotating pipe (12). A through hole (11) is provided on the water inlet pipe (3) and communicates with the housing (4) and the rotating pipe (12). An adjusting component is provided on the housing (4).
2. The RO filter element according to claim 1, characterized in that, The adjustment component is a threaded rod (6) that is installed on the outer wall of one side of the housing (4). One end of the threaded rod (6) is rotatably connected to a drive block (8) located inside the housing (4). The other end of the threaded rod (6) is fixedly installed with a knob (5) located outside the housing (4). A passive block (9) is provided inside the housing (4). An inner groove (10) is provided on the passive block (9). A round rod (14) is fixedly installed on one side wall of the passive block (9). The round rod (14) passes through the through hole (11) and extends into the rotating tube (12). An outer sliding groove (15) is provided on the outer side wall of the round rod (14). An inner sliding block (16) is fixedly installed on the inner wall of the rotating tube (12).
3. An RO filter element according to claim 2, characterized in that, Two guide rods (7) are fixedly installed on one side inner wall of the housing (4), and two guide grooves (21) are opened on one side wall of the drive block (8). The two guide rods (7) are respectively located in the two guide grooves (21) and are respectively adapted to the two guide grooves (21).
4. An RO filter element according to claim 2, characterized in that, The cross-sections of the drive block (8) and the inner groove (10) are both right-angled trapezoidal shapes, and the inclined surface of the drive block (8) is adapted to the inclined surface of the inner groove (10).
5. An RO filter element according to claim 2, characterized in that, Two telescopic rods (20) are fixedly installed on the inner wall of the housing (4) near the rotating tube (12). A fixing block (19) is fixedly installed on the telescopic end of each of the two telescopic rods (20). Both fixing blocks (19) are fixedly connected to the passive block (9). A tension spring (17) is fixedly connected between the two fixing blocks (19) and the inner wall of the housing (4).
6. An RO filter element according to claim 2, characterized in that, The outer slide groove (15) is spiral-shaped, and the inner slide block (16) is located inside the outer slide groove (15) and is slidably connected to the outer slide groove (15).