Combined water purifier filter element
By designing detachable outer and inner housing components, the problem of replacing the entire filter element in existing water purifiers has been solved, allowing for individual replacement of the filter element, reducing maintenance costs and avoiding waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KOROS TECH (SHENZHEN) CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-15
AI Technical Summary
Existing modular water purifier filters require the entire filter to be replaced, resulting in high costs and potential waste.
The design includes an outer shell assembly and an inner shell assembly. The outer shell assembly includes an outer cylinder and a sealing cover, while the inner shell assembly includes an inner cylinder, a filter plate, a sealing plate, and filter material. Individual replacement of the filter material is achieved through a detachable connection, and a stable connection is ensured by a fixing rod and a fixing stud.
This allows for individual replacement of the filter cartridge, reducing maintenance costs, avoiding waste, and improving the efficiency of the water purifier.
Smart Images

Figure CN224236292U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of water treatment technology, and in particular relates to a combined water purifier filter element. Background Technology
[0002] Water purifier filter cartridges are the core components of water purifiers used for filtering and purifying water. Their function is to remove residual chlorine, some heavy metal ions, and some organic pollutants from the water using filter materials (such as activated carbon, ultrafiltration membranes, etc.).
[0003] In general, most water purifiers do not use just one filter cartridge, but combine filter cartridges with different functions to form multi-layer filtration to achieve better purification effect. A common combination is "PP cotton + activated carbon + reverse osmosis membrane + post-activated carbon". In addition, filter cartridges will gradually become clogged or saturated during use, lose their filtration capacity, and even become a source of secondary pollution. Therefore, regularly replacing filter cartridges is the key to ensuring the normal operation of water purifiers and the quality of the output water.
[0004] However, existing modular water purifier filter cartridges integrate different functional filter units into a common shell or structure. It is connected to the water purifier as a whole, which means that when a filter unit needs to be replaced, the user needs to replace the entire modular water purifier filter cartridge, which is costly and wasteful. Therefore, a modular water purifier filter cartridge is needed to solve the above problems. Utility Model Content
[0005] The purpose of this utility model embodiment is to provide a combined water purifier filter element to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A combination water purifier filter element includes:
[0008] An outer casing assembly, the outer casing assembly including an outer cylinder and a sealing cap, the sealing cap being detachably mounted to the end of the outer cylinder;
[0009] The inner shell assembly includes an inner cylinder, filter plates, sealing plates, and filter element materials. Multiple filter plates, sealing plates, and filter element materials are provided. Each filter plate is horizontally installed at intervals inside the inner cylinder. Each sealing plate is detachably installed between two adjacent filter plates and is arc-shaped. Multiple filter element materials are respectively disposed between two adjacent sealing plates. The inner cylinder and sealing plates are both placed inside the outer cylinder, and the outer walls of the inner cylinder and sealing plates are in contact with the inner wall of the outer cylinder.
[0010] In a further technical solution, a pair of sealing caps are provided, and the upper and lower ends of the outer cylinder are respectively provided with mounting grooves, and each sealing cap is threadedly connected to each mounting groove.
[0011] In a further technical solution, the upper and lower ends of the inner cylinder are respectively provided with an inlet pipe and an outlet pipe, the sealing cover has an installation hole, the inlet pipe and the outlet pipe are both adapted to the installation hole, and the inlet pipe and the outlet pipe extend out of the outer side of the inner cylinder through the installation hole for a certain distance.
[0012] In a further technical solution, the inner cylinder has a limiting groove, the opposite sidewall of the sealing plate has a limiting block, the limiting groove is provided in multiple sets, each set of the limiting groove is provided in pairs, each set of the limiting groove is placed between two adjacent filter plates, and the limiting block is adapted to the limiting groove.
[0013] In a further technical solution, the inner housing assembly also includes a fixing rod, the side wall of the filter plate has a snap-fit block, the fixing rod abuts against the outer side wall of the sealing plate, and the fixing rod is detachably connected to a plurality of the snap-fit blocks.
[0014] In a further technical solution, the inner housing assembly also includes a fixing stud, the filter plate has a snap-fit groove at one end forming the snap-fit block, the fixing rod is disposed in the snap-fit groove, the upper end of the fixing rod is rotatably connected to the uppermost snap-fit block, the fixing stud is connected to the lower end of the fixing rod and the lowermost snap-fit block, and the fixing stud is threadedly connected to the lowermost snap-fit groove.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This utility model comprises an outer shell assembly and an inner shell assembly. The outer shell assembly includes an outer cylinder and a sealing cap, with the sealing cap detachably installed at the end of the outer cylinder. The inner shell assembly includes an inner cylinder, filter plates, sealing plates, and filter element materials. Each filter plate is horizontally installed at intervals inside the inner cylinder, and each sealing plate is detachably installed between two adjacent filter plates. Multiple filter element materials are respectively disposed between two adjacent sealing plates. The inner cylinder and sealing plates are both placed inside the outer cylinder, and the outer walls of the inner cylinder and sealing plates are in contact with the inner wall of the outer cylinder. The user first removes the sealing cap from the outer cylinder; then removes the inner cylinder from the outer cylinder; finally, the user removes the sealing plate corresponding to the filter element material that needs to be replaced. The user can replace multiple filter element materials separately, reducing maintenance costs and avoiding waste.
[0017] This invention features a fixed rod and a fixed stud. The filter plate has snap-fit blocks on its side wall, and the fixed rod abuts against the outer side wall of the sealing plate. The fixed rod is detachably connected to multiple snap-fit blocks. The filter plate has a snap-fit groove at one end forming the snap-fit block, and the fixed rod is positioned in the snap-fit groove. The upper end of the fixed rod is rotatably connected to the uppermost snap-fit block, and the fixed stud is connected to the lower end of the fixed rod and the lowermost snap-fit block. The fixed stud is threadedly connected to the lowermost snap-fit groove. The fixed rod is rotated to abut against the sealing plate, and the fixed stud is rotated to fix the lower end of the fixed rod to the last snap-fit block. The inner cylinder is then reinserted into the outer cylinder, and finally, the sealing cover is rotated to fix multiple sealing plates to the inner cylinder, preventing filter material leakage.
[0018] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0020] Figure 2 This is a partial exploded view of the present invention;
[0021] Figure 3 This is a partial exploded view of the inner shell assembly of this utility model.
[0022] In the diagram: 1. Outer shell assembly; 11. Outer cylinder; 111. Mounting groove; 12. Sealing cover; 121. Mounting hole; 2. Inner shell assembly; 21. Inner cylinder; 211. Inlet pipe; 212. Outlet pipe; 213. Limiting groove; 22. Filter plate; 221. Snap-fit block; 222. Snap-fit groove; 23. Sealing plate; 231. Limiting block; 24. Filter element material; 25. Fixing rod; 26. Fixing stud. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0025] like Figures 1 to 3 As shown, this utility model embodiment provides a combined water purifier filter element, comprising:
[0026] The outer shell assembly 1 includes an outer cylinder 11 and a sealing cover 12, the sealing cover 12 being detachably installed at the end of the outer cylinder 11;
[0027] The inner shell assembly 2 includes an inner cylinder 21, a filter plate 22, a sealing plate 23, and filter element material 24. Multiple filter plates 22, sealing plates 23, and filter element material 24 are provided. Each filter plate 22 is horizontally installed at intervals inside the inner cylinder 21. Each sealing plate 23 is detachably installed between two adjacent filter plates 22 and is arc-shaped. Multiple filter element materials 24 are respectively disposed between two adjacent sealing plates 23. The inner cylinder 21 and the sealing plate 23 are both placed inside the outer cylinder 11, and the outer walls of the inner cylinder 21 and the sealing plate 23 are in contact with the inner wall of the outer cylinder 11.
[0028] In this embodiment, the user first removes the sealing cap 12 from the outer cylinder 11; then the inner cylinder 21 is removed from the outer cylinder 11; finally, the user removes the sealing plate 23 corresponding to the filter material 24 that needs to be replaced; in this way, the user can replace multiple filter materials 24 separately, reducing maintenance costs and avoiding waste.
[0029] Specifically, a pair of sealing caps 12 are provided, and the upper and lower ends of the outer cylinder 11 are respectively provided with mounting grooves 111, and each sealing cap 12 is threadedly connected to each mounting groove 111.
[0030] In this embodiment, when one of the filter materials 24 needs to be replaced, the user first rotates one of the sealing caps 12 to disconnect the sealing cap 12 from the threaded connection in the mounting groove 111.
[0031] Specifically, the upper and lower ends of the inner cylinder 21 are respectively provided with an inlet pipe 211 and an outlet pipe 212, and the sealing cover 12 is provided with an installation hole 121. The inlet pipe 211 and the outlet pipe 212 are both adapted to the installation hole 121, and the inlet pipe 211 and the outlet pipe 212 extend out of the inner cylinder 21 by a certain distance through the installation hole 121.
[0032] In this embodiment, during use, water in the water purifier enters the inner cylinder 21 through the inlet pipe 211, and is filtered by multiple filter materials 24 and multi-layer filter plates 22 under the action of gravity, and finally flows out of the inner cylinder 21 from the outlet pipe 212.
[0033] Specifically, the inner cylinder 21 has a limiting groove 213, and the opposite sidewall of the sealing plate 23 has a limiting block 231. The limiting groove 213 is provided in multiple sets, and each set of limiting groove 213 is provided in pairs. Each set of limiting groove 213 is placed between two adjacent filter plates 22, and the limiting block 231 is adapted to the limiting groove 213.
[0034] In this embodiment, after the replacement is completed, the limiting block 231 on the sealing plate 23 is re-inserted into the limiting groove 213 on the inner cylinder 21. By setting the limiting block 231 and the limiting groove 213, the sealing plate 23 and the inner cylinder 21 are prevented from shifting.
[0035] Specifically, the inner housing assembly 2 also includes a fixing rod 25, the side wall of the filter plate 22 has a snap-fit block 221, the fixing rod 25 abuts against the outer side wall of the sealing plate 23, and the fixing rod 25 is detachably connected to a plurality of snap-fit blocks 221;
[0036] Specifically, the inner housing assembly 2 also includes a fixing stud 26, the filter plate 22 has a snap-fit groove 222 at one end forming the snap-fit block 221, the fixing rod 25 is disposed in the snap-fit groove 222, the upper end of the fixing rod 25 is rotatably connected to the uppermost snap-fit block 221, the fixing stud 26 is connected to the lower end of the fixing rod 25 and the lowermost snap-fit block 221, and the fixing stud 26 is threadedly connected to the lowermost snap-fit groove 222.
[0037] In this embodiment, the fixing rod 25 is rotated so that it abuts against the sealing plate 23, and the fixing stud 26 is rotated so that the lower end of the fixing rod 25 is fixedly connected to the last snap-fit block 221. Then, the inner cylinder 21 is reinserted into the outer cylinder 11, and finally the sealing cover 12 is rotated so that the sealing cover 12 is threadedly connected to the mounting groove 111 on the outer cylinder 11. In this way, by setting the fixing rod 25, multiple sealing plates 23 are fixedly connected to the inner cylinder 21 to prevent the filter material 24 from leaking out.
[0038] The working principle of this utility model is as follows:
[0039] When in use, water in the water purifier enters the inner cylinder 21 through the inlet pipe 211, and is filtered by multiple filter materials 24 and multiple filter plates 22 under the action of gravity, and finally flows out of the inner cylinder 21 through the outlet pipe 212.
[0040] When one of the filter element materials 24 needs to be replaced, the user first rotates one of the sealing caps 12 to disconnect the threaded connection between the sealing cap 12 and the mounting groove 111; then removes the inner cylinder 21 from the outer cylinder 11; next, disconnects the threaded connection between the fixing stud 26 and the bottommost snap-fit groove 222; then rotates the fixing rod 25 to move the fixing rod 25 away from the sealing plate 23; finally, the user removes the sealing plate 23 corresponding to the filter element material 24 that needs to be replaced; in this way, the user can replace multiple filter element materials 24 separately, reducing maintenance costs and avoiding waste;
[0041] After replacement, the limiting block 231 on the sealing plate 23 is repositioned into the limiting groove 213 on the inner cylinder 21, and the fixing rod 25 is rotated to make the fixing rod 25 abut against the sealing plate 23. The fixing stud 26 is rotated to make the lower end of the fixing rod 25 fixedly connected to the last snap-fit block 221. Then, the inner cylinder 21 is repositioned into the outer cylinder 11, and finally the sealing cover 12 is rotated to make the sealing cover 12 threadedly connected to the mounting groove 111 on the outer cylinder 11. In this way, by setting the limiting block 231 and the limiting groove 213, the sealing plate 23 is prevented from shifting from the inner cylinder 21, and by setting the fixing rod 25, multiple sealing plates 23 are fixedly connected to the inner cylinder 21 to prevent the filter material 24 from leaking out.
[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A combined water purifier filter element, characterized in that, include: The outer shell assembly (1) includes an outer cylinder (11) and a sealing cap (12), the sealing cap (12) being detachably mounted on the end of the outer cylinder (11); The inner shell assembly (2) includes an inner cylinder (21), a filter plate (22), a sealing plate (23), and a filter element material (24). Multiple filter plates (22), sealing plates (23), and filter element materials (24) are provided. Each filter plate (22) is horizontally installed at intervals inside the inner cylinder (21). Each sealing plate (23) is detachably installed between two adjacent filter plates (22) and the sealing plate (23) is arc-shaped. Multiple filter element materials (24) are respectively disposed between two adjacent sealing plates (23). The inner cylinder (21) and the sealing plate (23) are both placed inside the outer cylinder (11), and the outer walls of the inner cylinder (21) and the sealing plate (23) are in contact with the inner wall of the outer cylinder (11).
2. The combined water purifier filter element according to claim 1, characterized in that: The sealing cap (12) is provided in pairs, and the upper and lower ends of the outer cylinder (11) are respectively provided with mounting grooves (111), and each sealing cap (12) is threadedly connected to each mounting groove (111).
3. The combined water purifier filter element according to claim 2, characterized in that: The inner cylinder (21) has an inlet pipe (211) and an outlet pipe (212) at its upper and lower ends, respectively. The sealing cover (12) has an installation hole (121). The inlet pipe (211) and the outlet pipe (212) are both adapted to the installation hole (121), and the inlet pipe (211) and the outlet pipe (212) extend out of the inner cylinder (21) a certain distance through the installation hole (121).
4. A combined water purifier filter element according to claim 3, characterized in that: The inner cylinder (21) has a limiting groove (213), and the opposite sidewall of the sealing plate (23) has a limiting block (231). The limiting groove (213) is provided in multiple sets, and each set of the limiting groove (213) is provided with a pair. Each set of the limiting groove (213) is placed between two adjacent filter plates (22), and the limiting block (231) is adapted to the limiting groove (213).
5. A combined water purifier filter element according to claim 4, characterized in that: The inner housing assembly (2) further includes a fixing rod (25), the side wall of the filter plate (22) has a snap-fit block (221), the fixing rod (25) abuts against the outer side wall of the sealing plate (23), and the fixing rod (25) is detachably connected to a plurality of the snap-fit blocks (221).
6. A combined water purifier filter element according to claim 5, characterized in that: The inner housing assembly (2) further includes a fixing stud (26), the filter plate (22) has a snap-fit groove (222) at one end forming the snap-fit block (221), the fixing rod (25) is disposed in the snap-fit groove (222), the upper end of the fixing rod (25) is rotatably connected to the uppermost snap-fit block (221), the fixing stud (26) is connected to the lower end of the fixing rod (25) and the lowermost snap-fit block (221), and the fixing stud (26) is threadedly connected to the lowermost snap-fit groove (222).