A bypass valve filter cartridge assembly capable of adjusting the water mixing ratio

Abstract

The utility model discloses a bypass valve filter core subassembly that can adjust water mixing ratio, including filter core body, with the fixed bypass valve body of filter core body connection, filter core body can filter the calcium, magnesium ion in drinking water, get the second filtration water, and the bypass valve body can adjust the mixing ratio of drinking water and second filtration water, and filter core connecting seat is connected with the bypass valve connecting seat, and the upper end of drinking water inlet joint is fastened with the bypass valve water pipe, and the second soft water outlet channel is communicated with the bypass valve outlet channel, and the bypass valve outlet channel is communicated with the bypass valve outlet pipe again, the utility model discloses filter core body can filter the calcium, magnesium ion in drinking water, get the second filtration water, and the bypass valve body can freely adjust the mixing ratio of drinking water and second filtration water, and the water of different softness is provided for the user to select.

Description

Technical Field

[0001] This utility model relates to the field of drinking water filter technology, specifically to a bypass valve filter assembly that can adjust the water mixing ratio. Background Technology

[0002] Drinking water filter cartridges are the core filtration components in water purification equipment. They are composed of porous materials or functional media, including ceramic filter cartridges, hollow fiber ultrafiltration membranes, activated carbon, ion exchange resins, etc. They remove impurities and harmful substances (such as heavy metals, bacteria, residual chlorine, etc.) from tap water through physical interception, chemical adsorption, ion exchange, or biodegradation to improve water safety and taste, meeting the standards for direct drinking. For example, the utility model with authorization announcement number CN204224368U discloses a filter cartridge for a drinking water device. The filter cartridge body includes a cylinder and caps at both ends of the cylinder; an activated carbon layer disposed within the filter cartridge body; and a magnesium ion layer disposed within the filter cartridge body, located downstream of the activated carbon layer, forming a composite filtration layer with the activated carbon layer of the drinking water device filter cartridge. The filter cartridge of this drinking water device uses a composite filtration layer consisting of an activated carbon layer and a magnesium ion layer to directly adsorb, filter, deodorize, eliminate taste, energize, alkalize, and break down the water quality passing through the filter cartridge, thus providing clean water that is beneficial to human health.

[0003] The key difference between hard water and soft water lies in the concentration of calcium and magnesium ions. Hard water contains a high concentration of calcium and magnesium ions, with a total hardness typically exceeding 120 ppm. Soft water contains a lower concentration of calcium and magnesium ions, with a total hardness typically below 60 ppm.

[0004] Take brewing tea and coffee as examples. Using soft water enhances purity and aroma, but weakens extraction, resulting in a thin flavor. Using hard water increases concentration and body, but easily introduces bitterness and off-flavors, disrupting the flavor balance. Therefore, choosing drinking water with different hardness levels can improve and adjust the flavor and taste of tea or coffee, meeting the needs and personal preferences of different users for high-quality beverages.

[0005] Existing drinking water filter cartridges, such as ion exchange resin cartridges and reverse osmosis (RO) cartridges, can remove or significantly reduce calcium and magnesium ions in drinking water to obtain soft water. However, users cannot freely adjust the water hardness using these cartridges to obtain drinking water with different hardness levels; furthermore, they cannot obtain drinking water with different hardness levels after using the cartridge for a certain period of time, as the cartridge's ability to remove calcium and magnesium ions decreases. Utility Model Content

[0006] In order to at least overcome one of the technical problems existing in the prior art, this utility model provides a bypass valve filter element assembly that can adjust the water mixing ratio. The filter element body can filter calcium and magnesium ions in drinking water to obtain re-filtered water. The bypass valve body can freely adjust the mixing ratio of drinking water and re-filtered water, allowing users to select water with different hardness.

[0007] A bypass valve filter cartridge assembly capable of adjusting the water mixing ratio includes a filter cartridge body and a bypass valve body fixedly connected to the filter cartridge body. The filter cartridge body filters calcium and magnesium ions from drinking water to obtain re-filtered water. The bypass valve body adjusts the mixing ratio of drinking water and re-filtered water. The bypass valve body includes a bypass valve inlet pipe and a bypass valve outlet pipe arranged side by side, with a water baffle between the bypass valve inlet pipe and the bypass valve outlet pipe. A valve core mounting pipe is provided on the upper wall of one end of the bypass valve inlet pipe. It also includes multiple first mixing holes that penetrate one side wall of the valve core mounting pipe and the water baffle. A rotatable water volume regulating valve core is installed inside the valve core mounting pipe. The valve core includes a valve core rotating handle and a valve core tube. Multiple second mixing holes, corresponding to the positions and numbers of the multiple first mixing holes, are opened on the tube wall of the valve core tube. The valve core tube is connected to the bypass valve inlet pipe. Rotating the water volume regulating valve core controls the mixing ratio of the first mixing holes. The number of interconnected water holes and the second mixing hole allows some drinking water in the bypass valve inlet pipe to directly enter the bypass valve outlet pipe through the first and second mixing holes, thereby adjusting the mixing ratio of drinking water and re-filtered water. A bypass valve drain pipe is provided on the lower wall of one end of the bypass valve inlet pipe, which is arranged parallel to the valve core mounting pipe and is connected to the bypass valve inlet pipe. It also includes a bypass valve connecting seat, and a bypass valve outlet channel is formed between the bypass valve connecting seat and the bypass valve drain pipe. The filter element body includes a filter element connecting seat, a drinking water inlet connector sleeved in the filter element connecting seat, and a second soft water outlet channel formed between the filter element connecting seat and the drinking water inlet connector. The filter element connecting seat is connected to the bypass valve connecting seat, the upper end of the drinking water inlet connector is fastened to the bypass valve drain pipe, the second soft water outlet channel is connected to the bypass valve outlet channel, and the bypass valve outlet channel is connected to the bypass valve outlet pipe.

[0008] In some embodiments, the filter cartridge body further includes a bottle body, inside which a hollow tube is installed. An upper filter screen holder and a lower filter screen holder are installed at both ends of the hollow tube. The bottle body between the upper and lower filter screen holders is filled with filter media capable of filtering calcium and magnesium ions from the water. At least one filter screen is installed on both the upper and lower filter screen holders to block the filter media. A water-containing cavity is formed between the lower filter screen holder and the inner bottom wall of the bottle body. The hollow tube communicates with the water-containing cavity. An upper end cap is installed at the upper end of the upper filter screen holder, which includes an end cap shell and an axially disposed end cap. The drinking water inlet connector at the upper end of the shell has a hollow tube that passes through the upper filter screen frame axially and is then inserted into the lower end of the drinking water inlet connector. A filter element connecting seat is installed at the upper end of the upper cover, which includes a filter element connecting seat outer cover and a filter element connecting seat tube that is axially arranged at the upper end of the filter element connecting seat outer cover. The drinking water inlet connector is sleeved inside the filter element connecting seat tube. The filter element connecting seat is fastened to the top opening of the bottle body. A first soft water outlet channel is formed between the two end faces of the upper filter screen frame and the upper cover, and between the two end faces of the upper cover and the filter element connecting seat.

[0009] In some embodiments, both the upper and lower filter screen holders include a disc, a disc sleeve disposed axially at the center of one end face of the disc, and an end cap sleeve disposed axially within the end cap housing. The lower end of the hollow tube is inserted and fixed within the disc sleeve of the lower filter screen holder, and the upper end of the hollow tube passes sequentially through the disc sleeve and end cap sleeve of the upper filter screen holder, and is then inserted and fixed within the drinking water inlet connector. The outer wall of the disc is in close contact with the inner wall of the bottle body, and multiple reinforcing plates are evenly distributed on one end face of the disc. Multiple through holes are evenly opened on the disc, and the mesh diameter of the filter screen is smaller than the diameter of the through holes.

[0010] In some embodiments, the outer ring of the end cap housing is pressed tightly against multiple reinforcing plates of the upper filter screen holder, and an annular gap is formed between the outer wall of the end cap housing and the inner wall of the bottle body, allowing water to pass through for further filtration.

[0011] In some embodiments, the outer wall of the filter element connector cover is in close contact with the inner wall of the bottle body, and multiple reinforcing blocks are evenly distributed inside the filter element connector cover. The multiple reinforcing blocks press tightly against the upper end face of the end cap housing. An annular gap is also formed between the inner wall of the filter element connector cover and the outer wall of the end cap housing, allowing water to pass through for further filtration.

[0012] In some embodiments, at least one sealing ring is fitted on the outer wall of the water flow regulating valve core, the filter element connecting seat, and the drinking water inlet connector.

[0013] In some embodiments, a knob is mounted on the valve core rotating handle, and multiple markings are provided on the side wall of the knob to indicate the number of connections between the first mixing hole and the second mixing hole.

[0014] In some embodiments, the filter media is cation exchange resin particles.

[0015] In some embodiments, there are three first mixing holes and three second mixing holes, and the filter screen is arranged in multiple layers. The filter screen is a polypropylene filter screen, a ceramic filter screen, or an activated carbon filter screen.

[0016] Compared with the prior art, the technical solution of this utility model has the following advantages:

[0017] The filter cartridge can filter calcium and magnesium ions from drinking water to produce re-filtered water, which is soft water. The bypass valve can freely adjust the mixing ratio of drinking water and re-filtered water, allowing users to select water with different hardness for brewing different flavors and tastes of tea or coffee and other beverages.

[0018] Additional aspects and advantages of this invention will continue to be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of this invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the front view structure of this application;

[0021] Figure 2 This is a schematic diagram of the right-side planar structure of this application;

[0022] Figure 3 This is a cross-sectional structural diagram of this application;

[0023] Figure 4 This is a cross-sectional structural diagram of the bypass valve body;

[0024] Figure 5 This is a three-dimensional structural diagram of the filter element body;

[0025] Figure 6 This is a schematic diagram of the split structure of this application;

[0026] Figure 7 yes Figure 6 A further breakdown diagram of the structure at point A;

[0027] Figure 8 This is a bottom view of the structure of the water flow regulating valve core;

[0028] Figure 9 This is a bottom view of the filter element connector.

[0029] Figure 10 This is a schematic diagram of the top cover from below. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as the terms "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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 this utility model.

[0032] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model based on the specific circumstances.

[0034] Reference Figures 1-10 A bypass valve filter element assembly capable of adjusting the water mixing ratio includes a filter element body 1 and a bypass valve body 2 connected and fixed to the filter element body 1. The two can be connected by a threaded structure or by a snap-fit ​​block and snap-fit ​​groove connection structure, which is convenient for connection and disassembly and facilitates replacement of the filter element body 1. Water purifiers are generally composed of multiple filter elements connected in series, such as activated carbon filter elements, ceramic filter elements, composite filter elements (activated carbon + PP cotton), etc., to filter tap water to obtain drinking water.

[0035] This bypass valve filter assembly is typically installed in the last stage of a water purifier. Tap water, after passing through the upstream filter, already meets drinking water standards, but still contains a significant amount of calcium and magnesium ions. The filter body 1 of this application can filter out calcium and magnesium ions from the drinking water, resulting in re-filtered water. The bypass valve body 2 allows for free adjustment of the mixing ratio of drinking water and re-filtered water, enabling users to select water with different hardness levels. Furthermore, a water quality analyzer can be used to determine the calcium and magnesium ion content, which can then be used to brew teas or coffees with different flavors and textures.

[0036] The bypass valve body 2 includes a bypass valve inlet pipe 3 and a bypass valve outlet pipe 4 arranged side by side, roughly at the same horizontal plane. A baffle plate 5 is provided between the bypass valve inlet pipe 3 and the bypass valve outlet pipe 4 to prevent the application water in the bypass valve inlet pipe 3 from flowing directly to the bypass valve outlet pipe 4. A hollow valve core mounting tube 6 is provided on the upper wall of one end of the bypass valve inlet pipe 3 (the end near the bypass valve outlet pipe 4), and also includes multiple first mixing holes 7, which penetrate one side of the pipe wall of the valve core mounting tube 6 and the baffle plate 5, forming through holes. A rotatable water flow regulating valve core 8 is installed inside the valve core mounting tube 6. The valve core mounting tube 6 is roughly perpendicular to the bypass valve inlet pipe 3 and extends into the middle of the bypass valve inlet pipe 3. The lower end face of the regulating valve core 8 is approximately on the same horizontal plane as the lower end face of the valve core mounting tube 6. The water volume regulating valve core 8 includes a valve core rotating handle 9 and a valve core tube 91, which is a round tube with one open end. The valve core rotating handle 9 is used to achieve forward or reverse rotation. Multiple second mixing holes 10 are opened on the tube wall of the valve core tube 91, corresponding to the positions and numbers of multiple first mixing holes 7. The number of first mixing holes 7 and second mixing holes 10 can be two, three, or four of equal number. The lower end of the valve core tube 91 is connected to the bypass valve inlet pipe 3. Rotating the water volume regulating valve core 8 can control the number of first mixing holes 7 and second mixing holes 10 connected, so that some drinking water in the bypass valve inlet pipe 3 can directly enter the bypass valve through the first mixing holes 7 and second mixing holes 10. The bypass valve outlet pipe 4 is used to adjust the mixing ratio of drinking water and re-filtered water. For example, all the first mixing holes 7 and all the second mixing holes 10 can be connected, or they can be partially connected, thereby controlling the flow rate of drinking water directly flowing from the bypass valve inlet pipe 3 into the bypass valve outlet pipe 4. Alternatively, they can be completely blocked to prevent drinking water from flowing directly from the bypass valve inlet pipe 3 into the bypass valve outlet pipe 4. A bypass valve drain pipe 11 (close to the bypass valve outlet pipe 4) is provided on the lower wall of one end of the bypass valve inlet pipe 3. It is arranged vertically alongside the valve core mounting pipe 6. The bypass valve drain pipe 11 is connected to the bypass valve inlet pipe 3. Drinking water can enter the filter element body 1 for re-filtration through the bypass valve inlet pipe 3 and the bypass valve drain pipe 11. The filter element 1 is filtered to obtain second-filtered water, which then flows into the bypass valve outlet pipe 4. Simultaneously, some drinking water can enter the bypass valve outlet pipe 4 through the bypass valve inlet pipe 3, the first mixing hole 7, and the second mixing hole 10. The two types of water mix in the bypass valve outlet pipe 4 before being output to the user. The filter element 1 also includes a bypass valve connector 12 for installing the filter element body 1. A bypass valve outlet channel 13 is formed between the bypass valve connector 12 and the bypass valve downpipe 11, allowing the second-filtered water to flow into the bypass valve outlet pipe 4. The filter element body 1 includes a filter element connector 14, a drinking water inlet connector 15 fitted inside the filter element connector 14, and a second soft water outlet channel 16 formed between the filter element connector 14 and the drinking water inlet connector 15.The filter element connector 14 is connected to the bypass valve connector 12. The upper end of the drinking water inlet connector 15 is fastened to the bypass valve drain pipe 11. The second soft water outlet channel 16 is connected to the bypass valve outlet channel 13, and the bypass valve outlet channel 13 is connected to the bypass valve outlet pipe 4.

[0037] In use, the filter element body 1 is installed and fixed at the lower end of the bypass valve body 2. The bypass valve inlet pipe 3 is connected to the outlet of the previous stage filter element through a hose, allowing drinking water to enter the bypass valve inlet pipe 3. At this time, the drinking water can flow in one or two streams.

[0038] First path: Drinking water in the bypass valve inlet pipe 3 can enter the filter body 1 through the bypass valve outlet pipe 11 for secondary filtration, which is used to filter calcium and magnesium ions to obtain secondary filtered water (i.e. soft water). The secondary filtered water finally flows into the bypass valve outlet pipe 4.

[0039] The second route: Drinking water in the bypass valve inlet pipe 3 can also partially enter the bypass valve outlet pipe 4 through the first mixing hole 7 and the second mixing hole 10. The two types of water mix in the bypass valve outlet pipe 4 before being output to the user. By controlling the rotation of the water flow regulating valve core 8, the number of openings of the first mixing hole 7 and the second mixing hole 10 can be controlled, allowing some drinking water in the bypass valve inlet pipe 3 to directly enter the bypass valve outlet pipe 4 through the first mixing hole 7 and the second mixing hole 10, thereby adjusting the mixing ratio of drinking water and re-filtered water. For example, all of the first mixing holes 7 and all of the second mixing holes 10 can be opened, or they can be partially opened, thereby controlling the flow rate of drinking water directly flowing from the bypass valve inlet pipe 3 into the bypass valve outlet pipe 4; alternatively, they can be completely closed, preventing drinking water from directly flowing from the bypass valve inlet pipe 3 into the bypass valve outlet pipe 4.

[0040] When the filter cartridge body 1 is used for the first time, its ability to filter calcium and magnesium ions is the strongest. Therefore, the first mixing hole 7 and the second mixing hole 10 can be fully opened. At this time, the drinking water flowing directly into the bypass valve outlet pipe 4 is the largest.

[0041] After the filter body 1 has been used for a certain period of time, its ability to filter calcium and magnesium ions weakens. The number of connections between the first mixing hole 7 and the second mixing hole 10 can be gradually reduced, thereby reducing the amount of drinking water that flows directly into the bypass valve outlet pipe 4.

[0042] When the filter cartridge body 1 has been used for a longer period of time, its ability to filter calcium and magnesium ions becomes weaker. It can close all the above-mentioned mixing holes so that drinking water cannot directly enter the bypass valve outlet pipe 4, but must be filtered through the filter cartridge body 1.

[0043] Users can also use a water quality tester to obtain the content of calcium and magnesium ions and know the water hardness parameters, thereby controlling the number of the above-mentioned mixing holes; the bypass valve body 2 can freely adjust the mixing ratio of drinking water and re-filtered water, allowing users to select water with different hardness for brewing tea or coffee with different flavors and tastes.

[0044] In some embodiments, the filter cartridge body 1 further includes a bottle body 17, which is generally a hollow cylinder. A hollow tube 18 is installed inside the bottle body 17. An upper filter screen holder 19 and a lower filter screen holder 20 are installed at both ends of the hollow tube 18, which can be used to limit the movement range of the filter media 21 and to install filter screens. The bottle body 17 between the upper filter screen holder 19 and the lower filter screen holder 20 is filled with filter media 21, which can filter calcium and magnesium ions in the water. At least one filter screen 22 is installed on both the upper filter screen holder 19 and the lower filter screen holder 20, preferably multiple layers, which can be used to block the filter media 21 and further improve the water quality. A water-containing cavity 23 is formed between the lower filter screen holder 20 and the inner bottom wall of the bottle body 17. The hollow tube 18 communicates with the water-containing cavity 23, which increases the contact area between the drinking water and the filter media 21, thereby optimizing the filtration efficiency and effect. The upper end of the upper filter screen holder 19 is equipped with an upper end cover 24, which includes an end cover housing 25 and a drinking water inlet connector 15 axially disposed on the upper end of the end cover housing 25. The upper end of the hollow tube 18 passes through the upper filter screen holder 19 axially and is inserted into the lower end of the drinking water inlet connector 15. The upper end of the upper end cover 24 is equipped with a filter element connecting seat 14, which includes a filter element connecting seat outer cover 26 and a filter element connecting seat tube 27 axially disposed on the upper end of the filter element connecting seat outer cover 26. The drinking water inlet connector 15 is sleeved in the filter element connecting seat tube 27. The filter element connecting seat 14 is fastened to the top opening of the bottle body 17 to prevent water from overflowing. A first soft water outlet channel 28 is formed between the two end faces of the upper filter screen holder 19 and the upper end cover 24, and between the two end faces of the upper end cover 24 and the filter element connecting seat 14.

[0045] In use, drinking water enters the water chamber 23 through the bypass valve inlet pipe 3, the bypass valve outlet pipe 11, the drinking water inlet connector 15, and the hollow pipe 18. After being filtered by the filter media 21, it becomes filtered water again. Then, it flows from the first soft water outlet channel 28 between the upper filter screen frame 19 and the upper end cover 24 to the first soft water outlet channel 28 between the upper end cover 24 and the filter element connecting seat 14, then to the second soft water outlet channel 16 formed between the filter element connecting seat 14 and the drinking water inlet connector 15, then to the bypass valve outlet channel 13, and finally to the bypass valve outlet pipe 4.

[0046] In some embodiments, both the upper filter tray frame 19 and the lower filter tray frame 20 include a disc 29, a disc sleeve 30 axially disposed at the center of one end face of the disc 29, and an end cap sleeve 31 axially disposed within the end cap housing 25. The lower end of the hollow tube 18 is inserted and fixed within the disc sleeve 30 of the lower filter tray frame 20, and the upper end of the hollow tube 18 passes sequentially through the disc sleeve 30 and the end cap sleeve 31 of the upper filter tray frame 19, and is then inserted and fixed within the drinking water inlet connector 15. This structure enables rapid connection between the components. Quick assembly and disassembly facilitate the production of various components, saving costs and improving production efficiency. Sealing components can be installed at the joints between components to further improve waterproof performance. The outer wall of the disc 29 is tightly attached to the inner wall of the bottle body 17 to prevent the filter material 21 from overflowing. Multiple reinforcing plates 32 are evenly distributed on one end face of the disc 29. They are roughly triangular and used to improve compressive strength. A space for water supply is formed between the multiple reinforcing plates 32. Multiple through holes 290 are evenly opened on the disc 29. The mesh diameter of the filter screen 22 is smaller than the diameter of the through holes.

[0047] In some embodiments, the outer ring of the end cap housing 25 is pressed tightly against a plurality of reinforcing plates 32 of the upper filter screen holder 19; an annular gap is formed between the outer wall of the end cap housing 25 and the inner wall of the bottle body 17, allowing water to pass through for further filtration.

[0048] In some embodiments, the outer wall of the filter element connector outer cover 26 is tightly attached to the inner wall of the bottle body 17. A plurality of reinforcing blocks 33 are evenly distributed inside the filter element connector outer cover 26. These blocks are approximately triangular in shape and are used to improve compressive strength. A space for water to pass through is formed between the plurality of reinforcing blocks 33. The plurality of reinforcing blocks 33 press tightly against the upper end face of the end cap housing 25. An annular gap is also formed between the inner wall of the filter element connector outer cover 26 and the outer wall of the end cap housing 25, allowing water to pass through again for filtration.

[0049] In some embodiments, at least one sealing ring 34, preferably two or more, is fitted on the outer wall of the water flow regulating valve core 8, the filter element connecting seat tube 27, and the drinking water inlet connector 15 to improve the water leakage prevention performance.

[0050] In some embodiments, a knob 35 is mounted on the valve core rotating handle 9. Multiple markings 36 are arranged side-by-side on the side wall of the knob 35 to indicate the number of connected orifices 7 and 10. Specifically, the multiple markings 36 are multiple numbers; for example, when there are three of each of the first and second mixing holes 7 and 10, the multiple markings are 0, 1, 2, and 3; where 0 represents that the number of connected orifices 7 and 10 is 0, 1 represents that the number of connected orifices is 1, and so on. This facilitates intuitive and convenient observation.

[0051] In some embodiments, the filter media 21 is preferably cation exchange resin particles, but it can also be nano-aluminosilicate particles. Cation exchange resin particles have the following advantages: high-efficiency softening, large throughput, regenerative and recyclable, long-term economic efficiency, mature technology, and strong adaptability. Nano-aluminosilicate particles have the following advantages: the filter element can be directly replaced after adsorption saturation, eliminating the need for salt or acid regeneration, avoiding wastewater discharge, and some modified models (such as silver-loaded types) also have antibacterial functions. They can be combined with activated carbon and ultrafiltration membranes to simultaneously remove organic matter and particulate matter.

[0052] In some embodiments, there are three of each of the first mixing holes 7 and the second mixing holes 10, which facilitates layout and provides an appropriate number; the filter screen 22 is arranged in multiple layers for better filtration effect, and the filter screen 22 is one of polypropylene filter screen, ceramic filter screen or activated carbon filter screen, or a combination of two or three layers.

[0053] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A bypass valve filter cartridge assembly capable of adjusting the water mixing ratio, comprising a filter cartridge body and a bypass valve body fixedly connected to the filter cartridge body, wherein the filter cartridge body can filter calcium and magnesium ions in drinking water to obtain re-filtered water, characterized in that: The bypass valve body can adjust the mixing ratio of drinking water and re-filtered water. The bypass valve body includes a bypass valve inlet pipe and a bypass valve outlet pipe arranged side-by-side, with a baffle plate between them. A valve core mounting pipe is installed on the upper wall of one end of the bypass valve inlet pipe. It also includes multiple first mixing holes that penetrate one side of the valve core mounting pipe and the baffle plate. A rotatable water flow regulating valve core is installed inside the valve core mounting pipe, which includes a valve core rotating handle and a valve core tube. Multiple second mixing holes, corresponding to the positions and numbers of the multiple first mixing holes, are opened on the wall of the valve core tube. The valve core tube is connected to the bypass valve inlet pipe. Rotating the water flow regulating valve core controls the number of first and second mixing holes that are open, allowing some of the drinking water in the bypass valve inlet pipe to pass through the first mixing holes. The first hole and the second mixing hole directly enter the bypass valve outlet pipe to adjust the mixing ratio of drinking water and re-filtered water. A bypass valve drain pipe is provided on the lower wall of one end of the bypass valve inlet pipe, which is arranged parallel to the valve core mounting pipe and is connected to the bypass valve inlet pipe. It also includes a bypass valve connecting seat, and a bypass valve outlet channel is formed between the bypass valve connecting seat and the bypass valve drain pipe. The filter element body includes a filter element connecting seat, a drinking water inlet connector sleeved in the filter element connecting seat, and a second soft water outlet channel formed between the filter element connecting seat and the drinking water inlet connector. The filter element connecting seat is connected to the bypass valve connecting seat, the upper end of the drinking water inlet connector is fastened to the bypass valve drain pipe, the second soft water outlet channel is connected to the bypass valve outlet channel, and the bypass valve outlet channel is connected to the bypass valve outlet pipe.

2. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 1, characterized in that: The filter cartridge body also includes a bottle body, inside which a hollow tube is installed. An upper filter screen holder and a lower filter screen holder are installed at both ends of the hollow tube. The bottle body between the upper and lower filter screen holders is filled with filter media, capable of filtering calcium and magnesium ions from the water. At least one filter screen is installed on both the upper and lower filter screen holders to block the filter media. A water-containing cavity is formed between the lower filter screen holder and the inner bottom wall of the bottle body. The hollow tube communicates with the water-containing cavity. An upper end cap is installed at the upper end of the upper filter screen holder, which includes an end cap housing and an axially positioned upper end of the end cap housing. The drinking water inlet connector has a hollow tube whose upper end passes through the upper filter screen frame along the axial direction and is then inserted into the lower end of the drinking water inlet connector; the upper end of the upper cover is equipped with a filter element connecting seat, which includes a filter element connecting seat outer cover and a filter element connecting seat tube arranged axially on the upper end of the filter element connecting seat outer cover. The drinking water inlet connector is sleeved in the filter element connecting seat tube. The filter element connecting seat is fastened to the top opening of the bottle body. A first soft water outlet channel is formed between the two end faces of the upper filter screen frame and the upper cover, and between the two end faces of the upper cover and the filter element connecting seat.

3. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 2, characterized in that: Both the upper and lower filter screen holders include a disc and a disc sleeve tube axially positioned at the center of one end face of the disc. An end cap sleeve tube is axially positioned inside the end cap housing. The lower end of the hollow tube is inserted and fixed inside the disc sleeve tube of the lower filter screen holder. The upper end of the hollow tube passes through the disc sleeve tube and the end cap sleeve tube of the upper filter screen holder in sequence, and is then inserted and fixed inside the drinking water inlet connector. The outer wall of the disc is in close contact with the inner wall of the bottle. Multiple reinforcing plates are evenly distributed on one end face of the disc. Multiple through holes are evenly opened on the disc, and the mesh diameter of the filter screen is smaller than the diameter of the through holes.

4. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 3, characterized in that: The outer ring of the end cap housing is pressed tightly against multiple reinforcing plates of the upper filter screen frame. An annular gap is formed between the outer wall of the end cap housing and the inner wall of the bottle body, allowing water to pass through for further filtration.

5. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 4, characterized in that: The outer wall of the filter element connector cover is tightly attached to the inner wall of the bottle. Multiple reinforcing blocks are evenly distributed inside the filter element connector cover. These reinforcing blocks press tightly against the upper end face of the end cap housing. An annular gap is also formed between the inner wall of the filter element connector cover and the outer wall of the end cap housing, allowing water to pass through for further filtration.

6. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 5, characterized in that: At least one sealing ring is fitted on the outer wall of the water flow regulating valve core, the filter element connecting seat, and the drinking water inlet connector.

7. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in any one of claims 1 to 6, characterized in that: A knob is installed on the valve core rotating handle, and multiple markings are provided on the side wall of the knob to indicate the number of connections between the first mixing hole and the second mixing hole.

8. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 2, characterized in that: The filter media is cation exchange resin particles.

9. The bypass valve filter element assembly capable of adjusting the water mixing ratio as described in claim 8, characterized in that: There are three mixing holes in both the first and second mixing holes. The filter screen is made of multiple stacked pieces, and the filter screen is a polypropylene filter screen, a ceramic filter screen, or an activated carbon filter screen.

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