Combined carbon rod filter element capable of being quickly disassembled and assembled
By designing a modular, quick-release carbon rod filter element replacement and fastening assembly, the problem of cumbersome replacement process in existing carbon rod filter elements has been solved, achieving quick disassembly and assembly, improved stability, and extended filter element lifespan.
Patent Information
- Application Number
- CN202520241872.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-17
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-17
AI Technical Summary
The existing carbon rod filter cartridges are cumbersome to replace, resulting in low replacement efficiency. Furthermore, the end cap connections are not easily damaged, affecting the timely use of the filter cartridges.
A modular quick-release carbon rod filter element was designed, employing replacement and fastening components, including a shell rod, extension rod, through block, spring, stud, and knob, which simplifies the filter element assembly and disassembly process and improves the filter element's tightness within the end cap through the fastening components.
It enables quick installation and removal of filter elements, reduces the difficulty and time cost of replacement, improves replacement efficiency, reduces equipment downtime, and enhances the stability and service life of filter elements.
Smart Images

Figure CN223831979U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon rod filter technology, and in particular to a combined quick-assembly carbon rod filter. Background Technology
[0002] Carbon rod filter cartridges, also known as sintered activated carbon filter cartridges or CTO filter cartridges, are a type of filter cartridge made from high-quality activated carbon as raw material. They are formed by adding a low-heat-melting binder (such as PE resin) to create their structure, and then undergo continuous extrusion molding and low-temperature sintering curing. This new type of deep-layer filter cartridge possesses a certain strength, is not easily damaged, and has the adsorption properties of granular activated carbon. It can remove organic matter, particles, rust, residual chlorine, odors, and other impurities from water. It is a highly efficient, stable, and safe filter material, widely used in various water treatment fields.
[0003] Existing technology, patent number CN210261317U, discloses a composite carbon rod filter element that can effectively remove residual chlorine and odors from water, thereby effectively improving water quality and ensuring a better taste for the filtered water. However, traditional carbon rod filter elements typically require replacement after prolonged use. Since the end caps connecting the filter element are not easily damaged, they need to be peeled off from both ends of the element. This process of peeling off and reassembling the end caps and filter element is cumbersome and laborious, and the assembly is also troublesome, easily delaying the replacement of the filter element, thus reducing replacement efficiency and hindering timely use of the element. Therefore, further improvements are needed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a combined quick-disassembly carbon rod filter element.
[0005] This utility model is achieved through the following technical solution:
[0006] A modular, quick-release carbon rod filter element includes an upper cover, an inlet pipe that is connected through the upper surface of the upper cover, a steel wire mesh located below the upper cover, PP cotton inside the steel wire mesh, a filter element core inside the PP cotton, a first limiting shell fixedly connected to the lower surface of the upper cover, a lower cover located below the first limiting shell, a second limiting shell fixedly connected to the upper surface of the lower cover, and a replacement component located on the upper surface of the lower cover.
[0007] As a further description of the above technical solution: the replacement component includes a shell rod, which is fixedly connected to the upper surface of the lower end cover. Two first limiting blocks are fixedly connected to one end of the shell rod. An extension rod is slidably connected inside the shell rod. Multiple through grooves are opened inside the extension rod. A second limiting block is fixedly connected to one end of the extension rod.
[0008] As a further description of the above technical solution: a fixed shell is fixedly connected to one side of the shell rod, a pull rod is slidably connected to one side of the fixed shell, a through block is fixedly connected to one end of the pull rod, a spring is fixedly connected to one side of the through block, the spring is fixedly connected to the inner wall of the fixed shell, and through grooves are respectively opened on both sides of the shell rod, and a rubber sleeve is provided on the inner wall of the through groove.
[0009] As a further description of the above technical solution: a fastening assembly is provided inside the lower end cover, the fastening assembly including a positioning shell, the positioning shell being fixedly connected inside the lower end cover.
[0010] As a further description of the above technical solution: two mounting grooves are provided inside the lower end cover, and a connecting groove is provided on the upper surface of the mounting groove.
[0011] As a further description of the above technical solution: a stud is rotatably connected inside the mounting groove, one end of the stud is fixedly connected to a shaft, and one end of the shaft is fixedly connected to a knob.
[0012] As a further description of the above technical solution: the stud is externally threaded with a movable block, the upper surface of the movable block is fixedly connected with a connecting block, the upper surface of the connecting block is fixedly connected with a fastening plate, and the movable block is slidably connected inside the mounting groove.
[0013] The beneficial effects of this utility model are:
[0014] This invention, through the design of replacement components, facilitates the disassembly and replacement of the internal core of the carbon rod filter element. It eliminates the need for complex operations or tools, making it easy to separate the old core from the end caps at both ends, thereby installing the new core. This reduces the difficulty and time cost of replacing the filter element, improves replacement efficiency, significantly reduces equipment downtime, and facilitates the timely use of the filter element.
[0015] At the same time, the fastening components help improve the tightness of the filter element installed inside the end cap, reducing the vibration of the filter element during filtration and preventing damage. This improves the stability of the filter element during use and extends its service life. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure of this utility model is shown;
[0017] Figure 2 A schematic diagram of the steel wire mesh structure in this utility model is shown;
[0018] Figure 3 A schematic diagram of the shell rod structure in this utility model is shown;
[0019] Figure 4 A schematic diagram of the extension rod structure in this utility model is shown;
[0020] Figure 5 A schematic diagram of the cross-sectional structure of the fixed shell in this utility model is shown;
[0021] Figure 6 A schematic diagram of the connecting block structure in this utility model is shown.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Top cover; 2. Inlet pipe; 3. Steel wire mesh; 4. PP cotton; 5. Filter element; 6. First limiting shell; 7. Bottom cover; 8. Second limiting shell; 9. Shell rod; 10. First limiting block; 11. Extension rod; 12. Through groove; 13. Second limiting block; 14. Fixing shell; 15. Pull rod; 16. Through block; 17. Spring; 18. Through groove; 19. Rubber sleeve; 20. Positioning shell; 21. Mounting groove; 22. Connecting groove; 23. Stud; 24. Shaft; 25. Knob; 26. Moving block; 27. Connecting block; 28. Fastening plate. Detailed Implementation
[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0025] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0026] Example 1:
[0027] A modular quick-release carbon rod filter element includes an upper cover 1, an inlet pipe 2 connected through the upper surface of the upper cover 1, a steel wire mesh 3 disposed below the upper cover 1, PP cotton 4 disposed inside the steel wire mesh 3, a filter element core 5 disposed inside the PP cotton 4, a first limiting shell 6 fixedly connected to the lower surface of the upper cover 1, a lower cover 7 disposed below the first limiting shell 6, a second limiting shell 8 fixedly connected to the upper surface of the lower cover 7, and a replacement component disposed on the upper surface of the lower cover 7. The first limiting shell 6 and the second limiting shell 8 facilitate the external positioning of the filter element core 5.
[0028] Example 2:
[0029] The replacement component includes a housing rod 9, which is fixedly connected to the upper surface of the lower end cover 7. Two first limiting blocks 10 are fixedly connected to one end of the housing rod 9. An extension rod 11 is slidably connected inside the housing rod 9. Multiple through slots 12 are opened inside the extension rod 11. A second limiting block 13 is fixedly connected to one end of the extension rod 11. The cooperation between the first limiting block 10 and the second limiting block 13 helps to prevent the extension rod 11 from sliding out of the housing rod 9. The through slots 12 are used for the through engagement of the through block 16.
[0030] A fixed shell 14 is fixedly connected to one side of the shell rod 9. A pull rod 15 is slidably connected to one side of the fixed shell 14. A through block 16 is fixedly connected to one end of the pull rod 15. A spring 17 is fixedly connected to one side of the through block 16. The spring 17 is fixedly connected to the inner wall of the fixed shell 14. Through slots 18 are respectively opened on both sides of the shell rod 9. A rubber sleeve 19 is provided on the inner wall of the through slot 18. The through block 16 is convenient for limiting the position of the extension rod 11 after it moves. The spring 17 pushes and tightens the through block 16. The rubber sleeve 19 improves the tightness of the through block 16 after it passes through the through slot 18.
[0031] The lower end cover 7 has a fastening assembly inside, including a positioning shell 20, which is fixedly connected to the inside of the lower end cover 7. The lower end cover 7 has two mounting slots 21 inside, and a connecting slot 22 is formed on the upper surface of each mounting slot 21. A stud 23 is rotatably connected inside the mounting slot 21. One end of the stud 23 is fixedly connected to a shaft 24, and the other end of the shaft 24 is fixedly connected to a knob 25. A moving block 26 is threadedly connected to the outside of the stud 23. A connecting block 27 is fixedly connected to the upper surface of the moving block 26, and a fastening plate 28 is fixedly connected to the upper surface of the connecting block 27. The moving block 26 is slidably connected inside the mounting slot 21. The connecting slot 22 is used for the sliding of the connecting block 27. The stud 23 facilitates the movement of the moving block 26 under the action of the threads. The fastening plate 28 facilitates the fastening of the filter element 5 when it is in close contact with the steel wire mesh 3.
[0032] Working principle: When the internal filter element 5 needs to be replaced, pull the lever 15. The lever 15 drives the through block 16 to move, so that the through block 16 disengages from the corresponding through groove 12 and moves into the fixed shell 14. At this time, the spring 17 is compressed, and then the extension rod 11 is pulled, so that the extension rod 11 slides inside the shell rod 9. This causes the extension rod 11 to move the upper end cover 1 to a higher position. After the distance between the upper end cover 1 and the lower end cover 7 is increased, the filter element 5 is released from its limit. The filter element 5, together with the PP cotton 4 and the steel wire mesh 3, is then taken out. The new filter element 5 connected to the PP cotton 4 and the steel wire mesh 3 is installed above the lower end cover 7. Then the extension rod 11 is reset inside the shell rod 9, and the through block 16 is re-inserted into the corresponding through groove 12 under the action of the spring 17, completing the replacement.
[0033] When it is necessary to tighten the filter element 5 after installation, turn the knobs 25 on both sides. Under the connection of the shaft 24, the stud 23 will rotate. Under the action of the thread, the moving block 26 will move. The moving block 26, under the connection of the connecting block 27, will move the corresponding fastening plate 28 to fit tightly against one side of the steel wire mesh 3. Thus, the filter element 5 will be tightened by clamping force, reducing the phenomenon of the filter element 5 shaking.
[0034] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A modular, quick-release carbon rod filter element, comprising an upper end cap (1), characterized in that, The upper surface of the upper end cover (1) is connected to a water inlet pipe (2). A steel wire mesh (3) is provided below the upper end cover (1). PP cotton (4) is provided inside the steel wire mesh (3). A filter element (5) is provided inside the PP cotton (4). A first limiting shell (6) is fixedly connected to the lower surface of the upper end cover (1). A lower end cover (7) is provided below the first limiting shell (6). A second limiting shell (8) is fixedly connected to the upper surface of the lower end cover (7). A replacement component is provided on the upper surface of the lower end cover (7).
2. The combined quick-release carbon rod filter element according to claim 1, characterized in that, The replacement component includes a shell rod (9), which is fixedly connected to the upper surface of the lower end cover (7). Two first limiting blocks (10) are fixedly connected to one end of the shell rod (9). An extension rod (11) is slidably connected inside the shell rod (9). Multiple through grooves (12) are opened inside the extension rod (11). A second limiting block (13) is fixedly connected to one end of the extension rod (11).
3. The combined quick-release carbon rod filter element according to claim 2, characterized in that, A fixed shell (14) is fixedly connected to one side of the shell rod (9), and a pull rod (15) is slidably connected to one side of the fixed shell (14). A through block (16) is fixedly connected to one end of the pull rod (15), and a spring (17) is fixedly connected to one side of the through block (16). The spring (17) is fixedly connected to the inner wall of the fixed shell (14). Through grooves (18) are respectively opened on both sides of the shell rod (9), and a rubber sleeve (19) is provided on the inner wall of the through groove (18).
4. The combined quick-release carbon rod filter element according to claim 1, characterized in that, The lower end cover (7) is provided with a fastening assembly inside, the fastening assembly including a positioning shell (20), the positioning shell (20) being fixedly connected to the inside of the lower end cover (7).
5. The combined quick-release carbon rod filter element according to claim 4, characterized in that, The lower end cover (7) has two mounting slots (21) inside, and the upper surface of the mounting slots (21) has a connecting slot (22).
6. The combined quick-release carbon rod filter element according to claim 5, characterized in that, The mounting groove (21) is rotatably connected to a stud (23), one end of which is fixedly connected to a shaft (24), and one end of which is fixedly connected to a knob (25).
7. The combined quick-release carbon rod filter element according to claim 6, characterized in that, The stud (23) is externally threaded with a movable block (26), the upper surface of the movable block (26) is fixedly connected with a connecting block (27), the upper surface of the connecting block (27) is fixedly connected with a fastening plate (28), and the movable block (26) is slidably connected inside the mounting groove (21).
Citation Information
Patent Citations
Composite carbon rod filter element
CN210261317U