A composite filter core water purifier
By integrating composite filter cartridges and reverse osmosis membrane filter cartridges, the filter cartridge connection of water purifiers is simplified, solving the problem of complex filter cartridge connection in existing technologies, and realizing convenient replacement and improved overall machine performance.
Patent Information
- Application Number
- CN202410296223.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2044-03-15
AI Technical Summary
Existing water purifiers have complex filter cartridge connections, resulting in messy structures, inconvenient replacement, and high costs, which affects the overall performance reliability and user experience.
It adopts an integrated structure of composite filter element and reverse osmosis membrane filter element to form a multi-stage filter element composite, which simplifies the connection and reduces the overall size of the machine. The reverse osmosis membrane filter element is set in the middle of the composite filter element, and the filter bottle cap is removable for easy inspection and replacement of filter elements.
This design simplifies filter element connection, reduces size, facilitates replacement and inspection, and improves the overall reliability and economy of the machine.
Smart Images

Figure CN118026351B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of water purifier technology, and more specifically, to a composite filter water purifier. Background Technology
[0002] Existing water purifiers are basically composed of a main machine frame, multi-stage filter cartridges, booster pump, solenoid valve, power supply, etc.
[0003] Based on the above, the inventors have discovered that the existing filter cartridges and water-contacting components involve many materials, requiring multi-stage connections during assembly, resulting in a complex overall structure. In particular, the pipe connections are also equipped with filter cartridges, leading to a messy internal arrangement of various components. This not only makes replacement troublesome and costly but also negatively impacts the overall reliability of the machine and the user experience. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a composite filter cartridge water purifier, aiming to achieve a more practical and valuable solution. Summary of the Invention
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this invention is to provide a composite filter water purifier that can adopt an integrated structure of composite filter and reverse osmosis membrane filter to form a multi-stage filter composite. This reduces the connection between filter elements, making the whole machine simpler and smaller in size. At the same time, the reverse osmosis membrane filter is located in the middle of the composite filter, providing thorough pre-filtration. The filter bottle cap is removable, allowing for easy inspection of filter hygiene and convenient replacement, making it more economical.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A composite filter water purifier includes a main support frame. A filter bottle and a booster pump are installed inside the main support frame and are fixedly connected to the main support frame by screws. An end cap is sealed to the bottom inner side of the filter bottle. A composite filter element is sealed to the inner wall of the annular rib of the end cap. A reverse osmosis membrane filter element is installed inside the composite filter element. The bottom center rod of the reverse osmosis membrane filter element passes through the end cap. A filter bottle cap is threaded to the top of the filter bottle and the inner top of the filter bottle cap is engaged with the top center rod of the reverse osmosis membrane filter element.
[0009] The upper part of the main support is provided with a recessed platform, which is engaged with the top of the filter bottle. The lower part of the main support is provided with a base, which contacts the bottom of the filter bottle and is fixed by screws. The main support is also provided with a rectangular bent panel, and the booster pump is fixed to one side of the rectangular bent panel by screws.
[0010] Both sides of the main support are provided with side plates, and the side plates are fixedly connected to the main support by slots and buckles. The end of the main support near the filter bottle is snapped with a front cover plate, and the top of the main support is fixedly connected with a top cover by screws, and the two ends of the top cover are respectively snapped and fixed to the top of the corresponding side plate.
[0011] Furthermore, the bottom of the filter bottle is provided with a concentrate outlet, a pure water outlet, and a raw water outlet, with the concentrate outlet and the raw water outlet located on either side of the pure water outlet.
[0012] Furthermore, the bottom center rod of the reverse osmosis membrane filter element extends into the pure water outlet and is sealed to the inner wall of the pure water outlet through a sealing ring.
[0013] Furthermore, the bottom of the inner side of the filter bottle is sealed to the bottom of the end cap by a sealing gasket.
[0014] Furthermore, the bottom outer periphery of the composite filter element is sealed to the inner wall of the annular rib of the end cap by a water-proof sealing ring.
[0015] Furthermore, the bottom outer periphery of the reverse osmosis membrane filter element is sealed to the inner wall of the end cap by a water-proof sealing ring.
[0016] Furthermore, a number of support ribs are fixedly connected to the inner bottom of the end cap, and the number of support ribs are evenly distributed in a ring.
[0017] Furthermore, a central hole is provided at the center of the end cap, and the bottom central rod of the reverse osmosis membrane filter element passes through the central hole through the end cap. Several first limiting ribs are evenly distributed on the side wall of the central hole, and several second limiting ribs are evenly distributed on the outer side wall of the end cap.
[0018] 3. Beneficial effects
[0019] Compared with the prior art, the advantages of this invention are:
[0020] This solution adopts an integrated structure of composite filter cartridges and reverse osmosis membrane filter cartridges to form a multi-stage filter cartridge composite. The connection between the filter cartridges is simplified, making the whole machine more compact and reducing its size. At the same time, the reverse osmosis membrane filter cartridge is located in the middle of the composite filter cartridges, which provides thorough pre-filtration. The filter bottle cap is removable, which can be opened at any time to check the hygiene of the filter cartridge, making replacement convenient and more economical. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the disassembled structure of the present invention;
[0022] Figure 2 This is a three-dimensional structural diagram of the present invention;
[0023] Figure 3 This is a schematic diagram of a partial cross-sectional structure of the present invention;
[0024] Figure 4 This is a schematic diagram of the internal structure of the present invention;
[0025] Figure 5 This is a schematic diagram of the end cap position structure of the present invention;
[0026] Figure 6 This is a schematic diagram of the main support structure of the present invention;
[0027] Figure 7 For the present invention Figure 6 Rear structure diagram;
[0028] Figure 8 This is a schematic diagram of the main support and side plate structure of the present invention.
[0029] Explanation of the labels in the diagram:
[0030] 1. Main support frame;
[0031] 2. Filter bottle;
[0032] 3. Booster pump;
[0033] 4. End caps;
[0034] 5. Composite filter element;
[0035] 6. Reverse osmosis membrane filter element;
[0036] 7. Filter bottle cap;
[0037] 8. Sunken platform;
[0038] 9. Base;
[0039] 10. Rectangular bent panel;
[0040] 11. Side panels;
[0041] 12. Front cover;
[0042] 13. Top cover;
[0043] 14. Concentrate outlet;
[0044] 15. Pure water outlet;
[0045] 16. Raw water outlet;
[0046] 17. Supporting reinforcement;
[0047] 18. Center hole;
[0048] 19. First limiting reinforcement bar;
[0049] 20. Second limiting reinforcement bar. Detailed Implementation
[0050] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0051] Example:
[0052] Please see Figure 1-8 A composite filter water purifier includes a main support frame 1. A filter bottle 2 and a booster pump 3 are housed inside the main support frame 1, and the filter bottle 2 and booster pump 3 are fixedly connected to the main support frame 1 by screws. An end cap 4 is sealed to the inner bottom of the filter bottle 2. A composite filter element 5 is sealed to the inner wall of the annular rib of the end cap 4. A reverse osmosis membrane filter element 6 is housed inside the composite filter element 5. The bottom center rod of the reverse osmosis membrane filter element 6 passes through the end cap 4. A filter bottle cap 7 is threaded to the top of the filter bottle 2, and the inner top of the filter bottle cap 7 engages with the top center rod of the reverse osmosis membrane filter element 6. During use, the sealing gaskets on the end cap 4, the composite filter element 5, and the sealing rings on the reverse osmosis membrane filter element 6, along with the filter bottle cap 7 and filter bottle 2, must be properly installed to ensure effective sealing and connection for the purifier to function. Obstructions between water channels are blocked through the cooperation of the various sealing components.
[0053] The main support 1 has a recessed platform 8 on its upper part, which engages with the top of the filter bottle 2. The main support 1 also has a base 9 on its lower part, which contacts the bottom of the filter bottle 2 and is fixed with screws. A rectangular bent panel 10 is also provided on the main support 1, and the booster pump 3 is fixed to one side of the rectangular bent panel 10 with screws. During use, the recessed platform 8 engages with the filter bottle 2 to support it. The base 9 at the bottom of the recessed platform 8 has evenly distributed limiting grooves to ensure that the filter bottle 2 does not loosen or detach during operation. The base 9 is tightly fitted to the filter bottle 2.
[0054] Both sides of the main support 1 are provided with side plates 11, and the side plates 11 are fixedly connected to the main support 1 by slots and buckles. The end of the main support 1 near the filter bottle 2 is snapped with a front cover plate 12. The top of the main support 1 is fixedly connected with a top cover 13 by screws, and the two ends of the top cover 13 are respectively snapped and fixed to the top of the corresponding side plate 11. In use, the top cover 13 is a connecting part between the main support 1 and the side plates 11, that is, it is the appearance part of the whole machine. It cooperates with the main support 1 and the side plates 11 through slots and limiting ribs to ensure the fit gap between them and achieve the required aesthetic effect.
[0055] See Figure 3 and Figure 4 The bottom of filter bottle 2 is provided with a concentrate outlet 14, a pure water outlet 15 and a raw water outlet 16, with the concentrate outlet 14 and the raw water outlet 16 located on both sides of the pure water outlet 15.
[0056] See Figure 3 The bottom center rod of the reverse osmosis membrane filter element 6 extends into the pure water outlet 15 and is sealed to the inner wall of the pure water outlet 15 through a sealing ring.
[0057] See Figure 3 and Figure 4 The bottom of the inner side of the filter bottle 2 is sealed to the bottom of the end cap 4 by a sealing gasket.
[0058] See Figure 4 The bottom outer periphery of the composite filter element 5 is sealed to the inner wall of the annular rib of the end cap 4 by a water-proof sealing ring.
[0059] See Figure 3 The bottom outer periphery of the reverse osmosis membrane filter element 6 is sealed to the inner wall of the end cap 4 by a water-proof sealing ring.
[0060] See Figure 5 Several support ribs 17 are fixedly connected to the bottom inner side of the end cap 4, and the support ribs 17 are evenly distributed in a ring. During use, the support ribs 17 are designed with a certain height to ensure that the concentrated water flows out smoothly.
[0061] See Figure 5 The end cap 4 has a central hole 18 at its center. The bottom center rod of the reverse osmosis membrane filter element 6 passes through the central hole 18 through the end cap 4. Several first limiting ribs 19 are evenly distributed on the side wall of the central hole 18, and several second limiting ribs 20 are evenly distributed on the outer side wall of the end cap 4. During use, the setting of the first limiting ribs 19 can ensure that the concentrated water has enough space to flow out, while the setting of the second limiting ribs 20 can ensure that the gap between the filter bottle 2 and the composite filter element 5 is uniform, ensuring that the raw water can enter smoothly and filter the raw water thoroughly.
[0062] When using: Unscrew the filter bottle cap 7 on filter bottle 2, then place the composite filter element 5 inside filter bottle 2, then insert the reverse osmosis membrane filter element 6 into the composite filter element 5, and finally screw the filter bottle cap 7 on and tighten it. The water-proof sealing ring on the reverse osmosis membrane filter element 6 is sealed to the inner wall of the end cap 4 of the composite filter element 5 to complete the installation process (the disassembly is the reverse operation, and the whole machine is easy to install and disassemble). Then connect the booster pump 3 to the raw water inlet 16 at the bottom of filter bottle 2. At this time, the raw water enters the filter bottle 2 from the raw water inlet 16 and passes through the composite filter element 5 and the reverse osmosis membrane filter element 6 in sequence. The concentrated water is discharged from the concentrated water inlet 14, and the pure water is discharged from the pure water inlet 15.
[0063] The entire machine adopts an integrated structure of composite filter element 5 and reverse osmosis membrane filter element 6 to form a multi-stage filter element composite. The connection between the filter elements makes the whole machine simpler and smaller in size. At the same time, the reverse osmosis membrane filter element 6 is located in the middle of the composite filter element 5, which provides sufficient pre-filtration. Moreover, the filter bottle cap 7 is detachable, which can be opened at any time to check the hygiene of the filter element, making replacement convenient and more economical.
[0064] Finally, it should be noted that in the description of this invention, the terms "vertical," "upper," "lower," "horizontal," 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 this invention 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 this invention.
[0065] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0066] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.
Claims
1. A composite filter water purifier, comprising a main support frame (1), wherein a filter bottle (2) and a booster pump (3) are disposed inside the main support frame (1), and the filter bottle (2) and the booster pump (3) are fixedly connected to the main support frame (1) by screws, characterized in that: The bottom inner side of the filter bottle (2) is sealed with an end cap (4), the inner wall of the annular rib of the end cap (4) is sealed with a composite filter element (5), the composite filter element (5) is provided with a reverse osmosis membrane filter element (6), the bottom center rod of the reverse osmosis membrane filter element (6) passes through the end cap (4), the top of the filter bottle (2) is threaded with a filter bottle cap (7), and the top inner side of the filter bottle cap (7) is engaged with the top center rod of the reverse osmosis membrane filter element (6); The main support (1) is provided with a recessed platform (8) on the upper part, which is engaged with the top of the filter bottle (2). The main support (1) is provided with a base (9) on the lower part, which is in contact with the bottom of the filter bottle (2) and fixed by screws. The main support (1) is also provided with a rectangular bent panel (10), and the booster pump (3) is fixed to one side of the rectangular bent panel (10) by screws. The main support (1) has side plates (11) on both sides, and the side plates (11) are fixedly connected to the main support (1) by a slot and a buckle. The main support (1) is attached to a front cover plate (12) at one end near the filter bottle (2). The top of the main support (1) is fixedly connected to a top cover (13) by screws, and the two ends of the top cover (13) are respectively engaged and fixed to the top of the corresponding side plate (11).
2. The composite filter water purifier according to claim 1, characterized in that: The bottom of the filter bottle (2) is provided with a concentrate outlet (14), a pure water outlet (15) and a raw water outlet (16), with the concentrate outlet (14) and the raw water outlet (16) located on both sides of the pure water outlet (15).
3. A composite filter water purifier according to claim 1, characterized in that: The bottom center rod of the reverse osmosis membrane filter element (6) extends into the pure water outlet (15) and is sealed to the inner wall of the pure water outlet (15) by a sealing ring.
4. A composite filter water purifier according to claim 1, characterized in that: The bottom of the inner side of the filter bottle (2) is sealed to the bottom of the end cap (4) by a sealing gasket.
5. A composite filter water purifier according to claim 1, characterized in that: The bottom outer periphery of the composite filter element (5) is sealed to the inner wall of the annular rib of the end cap (4) by a water-proof sealing ring.
6. A composite filter water purifier according to claim 1, characterized in that: The bottom outer periphery of the reverse osmosis membrane filter element (6) is sealed to the inner wall of the end cap (4) by a water-proof sealing ring.
7. A composite filter water purifier according to claim 1, characterized in that: The inner bottom of the end cap (4) is fixedly connected with several support ribs (17), and the several support ribs (17) are evenly distributed in a ring.
8. A composite filter water purifier according to claim 1, characterized in that: The end cap (4) has a central hole (18) at its center. The bottom center rod of the reverse osmosis membrane filter element (6) passes through the end cap (4) through the central hole (18). The side wall of the central hole (18) is evenly distributed with several first limiting ribs (19), and the outer side wall of the end cap (4) is evenly distributed with several second limiting ribs (20).
Citation Information
Patent Citations
Composite filter element with reverse osmosis filter element and water purifier
CN215712120U