Small household reverse osmosis water purifier
By designing an easy-to-disassemble press block and sliding block structure, combined with a sealing design of rubber pads and sealing grooves, the problems of inconvenient filter replacement and contamination of the inner wall of the shell in reverse osmosis water purifiers are solved, enabling quick replacement and effective sealing of the filter element and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-04-03
AI Technical Summary
Existing reverse osmosis water purifiers are inconvenient to replace filter cartridges during use, and impurities and scale easily adhere to the inner wall of the filter cartridge housing, affecting the lifespan of the filter cartridge.
A small household reverse osmosis water purifier was designed, which adopts a press block, sliding block and spring structure to facilitate quick disassembly of the shell. It combines rubber gasket and sealing groove to achieve a seal to prevent leakage, and uses cleaning blocks and vertical rods to clean impurities from the inner wall of the shell.
It enables quick filter replacement and effective sealing, prevents water leakage, extends the service life of the filter, and reduces the risk of contamination.
Smart Images

Figure CN224077117U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water purifier technology, and in particular to a small household reverse osmosis water purifier. Background Technology
[0002] A water purifier is a water treatment device that performs deep filtration and purification of water according to usage requirements. Water purifiers effectively filter out rust, sand, colloids, and adsorb residual chlorine, odors, discoloration, pesticides, and other chemical agents, as well as bacteria, germs, toxins, heavy metals, and other impurities. With technological advancements, reverse osmosis water purifiers have developed significantly, bringing great convenience to users, and their types and quantities are increasing daily.
[0003] Most reverse osmosis water purifiers on the market are inconvenient to replace filter cartridges during use, and are not easy to prevent water leakage. Moreover, the inner wall of the housing that fixes the filter cartridge in many reverse osmosis water purifiers will have some impurities and scale that the filter cartridge does not filter, which will affect the service life of the new filter cartridge. Utility Model Content
[0004] The technical problem to be solved by this utility model is that most existing reverse osmosis water purifiers are inconvenient to replace the filter element during use, and are not easy to prevent water leakage. Moreover, the inner wall of the housing where the filter element is fixed in many reverse osmosis water purifiers will have some impurities and scale that the filter element has not filtered, which will affect the service life of the new filter element.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A small household reverse osmosis water purifier includes a body with an installation tube connected to the bottom. A cylindrical ring is fixedly connected inside the installation tube, and a first rubber pad is fixedly connected to the outer surface of the cylindrical ring. A housing adapted to the installation tube is provided between the inside of the installation tube and the outside of the rubber pad. An L-shaped cylindrical shell is connected to the top outer wall of the housing, and the cylindrical shell and the housing are an integral structure. A recessed cavity is symmetrically opened on the left and right sides of the middle position of the outer surface of the cylindrical shell. A sliding block is slidably connected inside the recessed cavity. A spring is fixedly connected to the bottom of the recessed cavity, and the other end of the spring is connected to the bottom of the sliding block. A through cavity is opened in the outer shell of the installation tube at the position of the recessed cavity, and a pressing block is slidably connected inside the through cavity.
[0007] Furthermore, several fixing strips are arranged in a ring below the cylindrical shell on the outer surface of the shell. A recessed hole is opened on the horizontal inner surface of the cylindrical shell at the position of the fixing strip. A vertical rod is provided inside the recessed hole. A cleaning block is provided between the outer surface of the shell and the vertical inner surface of the cylindrical shell, and the lower surface of the cleaning block is connected to the top of the vertical rod.
[0008] Furthermore, a first sealing groove is formed in the middle of the inner surface of the cylindrical ring, a filter element is installed inside the housing, and a rubber ring is connected to the top of the filter element near the first sealing groove.
[0009] Furthermore, a second sealing groove is provided on the side of the shell opposite to the cylindrical shell and above the cleaning block, and a second sealing gasket adapted to the second sealing groove is installed between the shell and the cylindrical shell.
[0010] Furthermore, a water inlet is installed on one side of the machine body, a water outlet is installed on the top right side of the machine body, and a display is installed on the front of the machine body.
[0011] Working principle and beneficial effects:
[0012] This invention utilizes the combined action of a pressing block, a sliding block, and a spring. Pressing the pressing block causes it to squeeze the sliding block, allowing for quick disassembly of the housing and convenient replacement of the filter element. After placing the new filter element inside the housing, the housing is inserted into the mounting tube. When the sliding block moves to the position of the through cavity, the compressed spring releases its elasticity, locking the sliding block in the through groove, thus quickly fixing the housing and enabling convenient and quick replacement of the filter element.
[0013] This utility model is equipped with a first rubber pad, a rubber ring, and a second sealing gasket. After the housing is installed, the first rubber pad will deform under the pressure of the inner wall of the housing, thereby sealing the outer wall of the cylindrical ring with the inner wall of the housing to prevent water leakage. Similarly, the inner wall of the cylindrical ring and the filter element are sealed by the rubber ring and the first sealing groove to prevent the water to be treated from seeping out due to excessive pressure after entering the filter element, thus preventing water leakage. The second sealing gasket can further seal the inner wall of the installation tube and the top of the housing. After the first sealing gasket leaks water, the second sealing gasket can seal the installation tube and the housing again, effectively preventing water leakage.
[0014] This invention uses a cleaning block and a vertical rod to clean impurities and scale adhering to the inner wall of the bottom of the housing, preventing new filter cartridges from being contaminated after being placed inside the housing and reducing their service life. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the internal half-section structure of the installation pipe of this utility model;
[0017] Figure 3 This is a schematic diagram of the internal half-section structure of the shell of this utility model;
[0018] Figure 4 This is a schematic diagram of the internal cross-sectional structure of the mounting pipe of this utility model.
[0019] In the diagram: 1. Body; 2. Mounting tube; 3. Cylindrical ring; 4. First rubber pad; 5. Housing; 6. Cylindrical shell; 7. Cavity; 8. Sliding block; 9. Spring; 10. Through cavity; 11. Pressing block; 12. Fixing strip; 13. Recessed hole; 14. Vertical rod; 15. Cleaning block; 16. First sealing groove; 17. Filter element; 18. Rubber ring; 19. Second sealing groove; 20. Second sealing gasket; 21. Display. Detailed Implementation
[0020] The present invention can be better understood from the following embodiments.
[0021] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.
[0022] like Figure 1-4 As shown:
[0023] Example 1:
[0024] A small household reverse osmosis water purifier includes a body 1. A mounting pipe 2 is connected to the bottom of the body 1. A cylindrical ring 3 is fixedly connected inside the mounting pipe 2. A first rubber pad 4 is fixedly connected to the outer surface of the cylindrical ring 3. A housing 5, adapted to the mounting pipe 2, is provided between the inside of the mounting pipe 2 and the outside of the first rubber pad 4. An L-shaped cylindrical shell 6 is connected to the top outer wall of the housing 5, and the cylindrical shell 6 and the housing 5 are an integral structure. A recessed cavity 7 is symmetrically provided on both sides of the middle of the outer surface of the cylindrical shell 6. A sliding block 8 is slidably connected inside the recessed cavity 7. A spring 9 is fixedly connected to the bottom of the recessed cavity 7, and the other end of the spring 9 is connected to the bottom of the sliding block 8. A through cavity 10 is provided on the outer shell of the mounting pipe 2 at the position of the recessed cavity 8, and a pressing block 11 is slidably connected inside the through cavity 10.
[0025] The outer surface of the housing 5 is arranged in a ring below the cylindrical housing 6 with several fixing strips 12. The horizontal inner surface of the cylindrical housing 6 is provided with a recess 13 at the position of the fixing strip 12. A vertical rod 14 is provided inside the recess 13. A cleaning block 15 is provided between the outer surface of the housing 5 and the vertical inner surface of the cylindrical housing 6, and the lower surface of the cleaning block 15 is connected to the top of the vertical rod 14.
[0026] A first sealing groove 16 is provided in the middle of the inner surface of the cylindrical ring 3. A filter element 17 is installed inside the housing 5. A rubber ring 18 is connected to the top of the filter element 17 near the first sealing groove 16.
[0027] A second sealing groove 19 is provided on the side of the housing 5 opposite to the cylindrical shell 6 and above the cleaning block 15. A second sealing gasket 20 adapted to the second sealing groove 19 is installed between the housing 5 and the cylindrical shell 6.
[0028] A water inlet is installed on one side of the body 1, a water outlet is installed on the top right side of the body, and a display 21 is installed on the front of the body 1.
[0029] In use, the filter element 17 is placed inside the housing 5 and connected to the mounting pipe 2 at the bottom of the body 1. Water is then connected to the water pipe via the inlet pipe, allowing water to flow into the body 1. After being filtered by the filter element 17, the filtered water is discharged from the outlet. When the filter element 17 needs to be replaced, the pressing block 11 on the mounting pipe 2 is pressed. The pressing block 11 slides inward within the passage cavity 10, simultaneously squeezing the sliding block 8, causing it to separate from the passage cavity 10. This allows the housing 5 and the filter element 17 to be removed, and the replacement filter element 17 can then be taken out. Remove the second sealing gasket 20 between the housing 5 and the cylindrical housing 6, take out the cleaning block 15 and the vertical rod 14 inside, clean the inner wall of the bottom of the housing 1, and after cleaning, put the cleaning block 15 and the vertical rod 14 back in place. Install the second sealing gasket 20 between the housing 5 and the cylindrical housing 6, put the new filter element 17 into the housing 5, and insert the housing 5 into the inner surface of the installation tube 2. When the sliding block 8 moves to the position of the through cavity 10, the spring 9 squeezed by the inner wall of the installation tube 2 releases its elastic force outward, and the sliding block 8 is stuck in the through cavity 10, thus completing the fixation of the housing 5.
[0030] This invention allows for quick disassembly of the housing 5 by pressing the pressing block 11, which compresses the sliding block 8 and simultaneously pulls the housing 5 downwards, facilitating the replacement of the filter element 17. After placing the new filter element inside the housing 5, the housing 5 is inserted into the mounting tube 2. When the sliding block 8 moves to the position of the through cavity 10, the compressed spring 9 releases its elasticity, locking the sliding block 8 in the through groove 10, which can quickly fix the housing 5 and facilitate convenient and quick replacement of the filter element 17.
[0031] This utility model is equipped with a first rubber pad 4, a rubber ring 18, and a second sealing gasket 20. After the housing 5 is installed, the first rubber pad 4 will deform under the pressure of the inner wall of the housing 5, thereby sealing the outer wall of the cylindrical ring 3 with the inner wall of the housing 5 to prevent water leakage. Similarly, the inner wall of the cylindrical ring 3 and the filter element 17 are sealed by the rubber ring 18 and the first sealing groove 16 to prevent the water to be treated from entering the filter element 17 and leaking out due to excessive pressure, thus preventing water leakage. The second sealing gasket 20 can further seal the inner wall of the installation tube 2 and the top of the housing 5. After the first sealing gasket 4 leaks water, the second sealing gasket 20 can seal the installation tube 2 and the housing 5 again, effectively preventing water leakage.
[0032] This invention uses the cleaning block 15 and the vertical rod 14 to clean the impurities and scale attached to the bottom inner wall of the housing 5, preventing the new filter element 17 from being contaminated after being placed in the housing 5, thus reducing the service life of the filter element 17.
Claims
1. A small household reverse osmosis water purifier comprising a machine body (1), characterized in that: The bottom of the body (1) is connected with the mounting pipe (2), the inside of the mounting pipe (2) is fixedly connected with the cylindrical ring (3), the outer surface of the cylindrical ring (3) is fixedly connected with the first rubber pad (4), the inside of the mounting pipe (2) and the outside of the first rubber pad (4) are provided with the shell (5) matched with the mounting pipe (2), the top outer wall of the shell (5) is connected with the cylindrical shell (6) with the section of "L" type, and the cylindrical shell (6) and the shell (5) are integrated structure, the outer surface of the cylindrical shell (6) is symmetrically provided with the recess cavity (7) at the middle position, the inside of the recess cavity (7) is slidably connected with the sliding block (8), the inside bottom of the recess cavity (7) is fixedly connected with the spring (9), the other end of the spring (9) is connected with the bottom of the sliding block (8), the position of the shell of the mounting pipe (2) in the recess cavity (7) is provided with the through cavity (10), and the inside of the through cavity (10) is slidably connected with the pressing block (11).
2. A small-sized domestic reverse osmosis water purifier according to claim 1, characterized in that: The outer surface of the shell (5) is arranged with a plurality of fixed strips (12) in the form of an annular array below the cylindrical shell (6), the horizontal inner surface of the cylindrical shell (6) is provided with the recess hole (13) at the position of the fixed strip (12), the inside of the recess hole (13) is provided with the vertical rod (14), the outer surface of the shell (5) and the vertical inner surface of the cylindrical shell (6) are provided with the cleaning block (15), and the lower surface of the cleaning block (15) is connected with the top of the vertical rod (14).
3. The small-sized domestic reverse osmosis water purifier according to claim 1, characterized in that: The inner surface of the cylindrical ring (3) is provided with the first sealing groove (16) in the middle, the inside of the shell (5) is provided with the filter core (17), and the top of the filter core (17) is connected with the rubber ring (18) near the position of the first sealing groove (16).
4. The compact domestic reverse osmosis water purifier as claimed in claim 1 wherein: The opposite side of the shell (5) and the cylindrical shell (6) and above the cleaning block (15) are provided with the second sealing groove (19), and the second sealing pad (20) matched with the second sealing groove (19) is installed between the shell (5) and the cylindrical shell (6).
5. The compact domestic reverse osmosis water purifier as claimed in claim 1 wherein: The water inlet is installed on one side of the body (1), the water outlet is installed on the top right side of the body, and the display (21) is installed in front of the body (1).