Filtering device and mineral water mineralization plant

Abstract

The application relates to the technical field of mineral spring mineralization equipment, in particular to a filtering device and mineral spring mineralization equipment. The filtering device comprises a device main body and a mineralization filter core. The device main body comprises an outer shell and an inner shell. The outer shell is sleeved on the outer periphery of the inner shell. A first cavity is formed between the outer shell and the outer side of the inner shell. The outer shell is provided with a first interface communicating with the first cavity. The inner side of the inner shell is provided with a second cavity. The inner shell is provided with a second interface communicating with the second cavity. The device main body is provided with one or at least two first one-way conduction structures. The first one-way conduction structure is used for being opened under the action of one-way water pressure to conduct the first cavity and the second cavity. The mineralization filter core is contained in the first cavity or the second cavity. Compared with the prior art, the total amount of minerals in the mineralized water output by the filtering device can be effectively controlled, and the problem that the mineral content in the water body is prone to exceeding the standard during the soaking of the mineralization filter core is solved.

Description

Technical Field

[0001] This application relates to the field of mineral spring mineralization equipment technology, specifically to filtration devices and mineral spring mineralization equipment. Background Technology

[0002] With the improvement of productivity, people's demand for quality of life and convenience is also increasing. Mineralized water is a type of water containing mineral salts and is rich in essential macro- and micro-elements for the human body. Therefore, mineralized water has become popular as drinking water. At the same time, there is also a certain demand for mineralized water containing specific mineral salts during production and experimental processes.

[0003] Currently, mineralized water is typically prepared using mineralization filter cartridges. The mineral salts in these cartridges are released into the water as it flows through or is immersed in the cartridge, transforming the water into mineralized water. However, it's difficult to effectively control the mineral content of mineralized water prepared using this method, especially when the filter cartridge is immersed in water. Because the filter cartridge is in contact with the water for a prolonged period, and because the mineralized filter media is housed within a casing, it is completely submerged in the water. This can easily lead to a high concentration of minerals in the water and a high total amount dissolving, potentially causing the mineral content to exceed safe levels. When the mineral content is excessive, the mineralized water can actually have negative effects on the user. Utility Model Content

[0004] In view of this, this application provides a filtration device and a mineral water mineralization equipment, which can solve the problem that the mineral content in the water is prone to exceed the standard when the mineralization filter is soaked, and effectively control the total amount of minerals in the mineralized water.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a filtration device, including a device body and a mineralizing filter element. The device body includes an outer shell and an inner shell. The outer shell is sleeved on the outer periphery of the inner shell. A first cavity is formed between the outer shell and the outer side of the inner shell. The outer shell has a first interface communicating with the first cavity. A second cavity is formed on the inner side of the inner shell. The inner shell has a second interface communicating with the second cavity. The device body has one or at least two first unidirectional conduction structures. The first unidirectional conduction structures are used to open under unidirectional water pressure to conduct the first cavity and the second cavity. The mineralizing filter element is accommodated in the first cavity or the second cavity.

[0006] In one specific embodiment, the filtration device further includes a pre-filter element; the main body of the device is also provided with a pre-filter chamber, a first pre-filter water passage communicating with the pre-filter chamber and a second pre-filter water passage communicating with the pre-filter chamber, and the pre-filter element is disposed in the pre-filter chamber; the first pre-filter water passage is used to connect a first end of the pre-filter element and an inlet pipe, the second pre-filter water passage is used to connect a second end of the pre-filter element and an outlet pipe, and the pre-filter chamber is isolated from the first chamber and the second chamber.

[0007] In one specific embodiment, the main body of the device includes an isolation member disposed within the outer shell, the first cavity, the second cavity, and the inner shell are located on one side of the isolation member, the front cavity is located on the other side of the isolation member, and the first front water passage and the second front water passage are disposed within the outer shell.

[0008] In one specific embodiment, the main body of the device further includes a first central tube and a second central tube. The first central tube is sleeved outside the second central tube, and a first central channel is formed between the outer sides of the first central tube and the second central tube. The first central channel connects the first cavity and the first interface. The outer shell is provided with a third interface. The inner side of the second central tube is provided with a second central channel, which connects the second interface and the third interface. The front cavity is located between the outer peripheral surface of the first central tube and the inner wall of the outer shell.

[0009] In one specific embodiment, the first unidirectional conduction structure includes a one-way valve; or, the first unidirectional conduction structure includes a magnetic attraction component, the magnetic attraction component including a first magnetic element and a second magnetic element, the first magnetic element and the second magnetic element having opposite polarities, the first magnetic element being used to separate from the second magnetic element under unidirectional water pressure to open the first unidirectional conduction structure.

[0010] In one specific embodiment, the first unidirectional conduction structure includes an elastic valve, the elastic valve having a closed elastic channel, the elastic valve being used to deform under unidirectional water pressure to open the elastic channel.

[0011] In one specific embodiment, the main body of the device is further provided with a second unidirectional flow structure; the mineralized filter element is located in the first cavity, and the second unidirectional flow structure is used to open under unidirectional water pressure to connect the first interface and the first cavity; or, the mineralized filter element is located in the second cavity, and the second unidirectional flow structure is used to open under unidirectional water pressure to connect the second interface and the second cavity.

[0012] In one specific embodiment, the second unidirectional conduction structure includes a one-way valve; or, the second unidirectional conduction structure includes a magnetic attraction assembly, the magnetic attraction assembly including a first magnetic element and a second magnetic element, the first magnetic element and the second magnetic element having opposite polarities, the first magnetic element being used to separate from the second magnetic element under unidirectional water pressure to open the first unidirectional conduction structure; or, the second unidirectional conduction structure includes an elastic valve, the elastic valve having a closed elastic channel, the elastic valve being used to deform under unidirectional water pressure to open the elastic channel.

[0013] In one specific embodiment, the filtration device further includes a buffer filter element, wherein the mineralizing filter element is housed in one of the first cavity and the second cavity, and the buffer filter element is housed in the other of the first cavity and the second cavity; when the first unidirectional conduction structure is open, the buffer filter element is located upstream of the mineralizing filter element, and the buffer filter element includes an antagonistic filter element for inhibiting the release of minerals from the mineralizing filter element into the water; or, when the first unidirectional conduction structure is open, the buffer filter element is located downstream of the mineralizing filter element, and the buffer filter element includes an adsorption filter element for adsorbing the minerals released from the mineralizing filter element into the water.

[0014] To solve the above-mentioned technical problems, this application also adopts a technical solution: providing a mineral spring mineralization device, including a water outlet component and a filtration device as described in any of the above specific embodiments, wherein the water outlet component is provided with a mineralized water outlet, and the mineralized water outlet is connected to a first interface or a second interface of the filtration device.

[0015] The beneficial effects of this application include: by the nesting relationship between the outer shell and the inner shell, a first cavity and a second cavity are formed that can only be selectively connected through a first unidirectional conduction structure, and the first unidirectional conduction structure can only be opened under the action of unidirectional water flow to connect the first cavity and the second cavity. Only one of the first cavity and the second cavity is used to contain the mineralization filter element. When the filter device is in an immersion state without water flow, the mineralization filter element can only contact the water in one of the first cavity and the second cavity and release minerals. That is, it only contacts and releases minerals with a portion of the water entering the filter device. The total amount of minerals released by the filter device during the immersion process can be reduced by reducing the volume of water in contact with the mineralization filter element.

[0016] When the filtration device finishes soaking and outputs water, the chamber with mineralization filter cartridges in the first and second chambers will output water with a higher mineral concentration, while the chamber without mineralization filter cartridges will output water with a lower mineral content or even no minerals released by the mineralization filter cartridges. The mixing of these two waters with different mineral concentrations ensures that even if the mineral concentration of the water output from the chamber with mineralization filter cartridges in the first and second chambers reaches saturation, the final mineral concentration of the water output by the filtration device will still be moderate. This effectively controls the mineral content in the mineralized water output by the filtration device and, to some extent, solves the problem of excessive mineral content in the water during the soaking of mineralization filter cartridges. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementations of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the filtering device provided in this application;

[0019] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section AA;

[0020] Figure 3 This is a cross-sectional view of another embodiment of the filtering device provided in this application, corresponding to the section shown in AA.

[0021] Figure 4 This is a cross-sectional view of the cross section shown in AA corresponding to another embodiment of the filtering device provided in this application;

[0022] Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section BB;

[0023] Figure 6 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section CC;

[0024] Figure 7 This is a cross-sectional view of another embodiment of the filtering device provided in this application, corresponding to the section shown in BB.

[0025] Figure 8 This is a cross-sectional structural diagram of another embodiment of the filtering device provided in this application, corresponding to the cross-section shown in CC.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Filtering device; 2. Device body; 21. Outer shell; 211. First cavity; 212. First interface; 213. Third interface; 214. Pre-filter chamber; 215. First pre-filter water channel; 216. Second pre-filter water channel; 22. Inner shell; 221. Second cavity; 222. Second interface; 23. Isolating element; 231. First socket; 232. Second socket; 24. First central tube; 241. First central channel; 25. Second central tube; 251. Second... 261. Central channel; 262. First unidirectional flow structure; 263. Second unidirectional flow structure; 27. One-way valve; 28. Magnetic suction assembly; 281. First magnetic component; 282. Second magnetic component; 29. ​​Elastic rubber valve; 291. Elastic channel; 3. Buffer filter element; 4. Mineralization filter element; 5. Pre-filter element; 51. First end; 52. Second end; 6. Third central tube; 61. Third central channel; 62. Third socket; 71. First socket; 72. Second socket. Detailed Implementation

[0028] In this application, the terms "set up," "equipped with," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0029] The terms “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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 application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] With the improvement of productivity, people's demand for quality of life and convenience is also increasing. Mineralized water is a type of water containing mineral salts and is rich in essential macro- and micro-elements for the human body. Therefore, mineralized water has become popular as drinking water. At the same time, there is also a certain demand for mineralized water containing specific mineral salts during production and experimental processes.

[0034] Currently, mineralized water is typically prepared using mineralization filter cartridges. The mineral salts in these cartridges are released into the water as it flows through or is immersed in the cartridge, transforming the water into mineralized water. However, it's difficult to effectively control the mineral content of mineralized water prepared using this method, especially when the filter cartridge is immersed in water. Because the filter cartridge is in contact with the water for a prolonged period, and because the mineralized filter media is housed within a casing, it is completely submerged in the water. This can easily lead to a high concentration of minerals in the water and a high total amount dissolving, potentially causing the mineral content to exceed safe levels. When the mineral content is excessive, the mineralized water can actually have negative effects on the user.

[0035] In order to improve or solve the above technical problems, the inventors of this application, after long-term research, have proposed at least the following embodiments.

[0036] See Figure 1 , Figure 2 , Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the filtering device provided in this application. Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section AA. Figure 2 The water flow path through the first cavity 211 and the second cavity 221 is shown by dashed lines with arrows. A specific embodiment of this application provides a filtration device 1, which includes a device body 2 and a mineralization filter element 4.

[0037] The main body 2 of the device includes an outer shell 21 and an inner shell 22, with the outer shell 21 fitted over the inner shell 22. A first cavity 211 is formed between the outer shell 21 and the outer side of the inner shell 22, and the outer shell 21 has a first interface 212 communicating with the first cavity 211. A second cavity 221 is formed on the inner side of the inner shell 22, and the inner shell 22 has a second interface 222 communicating with the second cavity 221. The main body 2 of the device has one or at least two first one-way conduction structures 261, which are used to open under unidirectional water pressure to conduct water between the first cavity 211 and the second cavity 221. When there is no water pressure, the first one-way conduction structures 261 remain closed, and the first cavity 211 and the second cavity 221 are relatively isolated, that is, the water in the first cavity 211 and the water in the second cavity 221 will not flow. The mineralization filter element 4 is housed in the first cavity 211 or the second cavity 221.

[0038] Of these, one of the first interface 212 and the second interface 222 is used to introduce water into the device body 2, and the other is used to output water from the device body 2. For example, in Figure 2 In this process, the water flows from the first interface 212 into the first cavity 211, and then, under the water pressure, enters the second cavity 221 through the first one-way conduction structure 261 and exits the filter device 1 from the second interface 222. The mineralization filter element 4 is located in the second cavity 221. Since the water first flows into the first cavity 211 and then into the second cavity 221, there is no water pressure in the water path when the filter device 1 is in the soaking state. The first one-way conduction structure 261 remains closed, and the first cavity 211 and the second cavity 221 are relatively isolated. The water in the first cavity 211 will not contain the minerals released by the mineralization filter element 4.

[0039] See Figure 3 , Figure 4 , Figure 3 This is a cross-sectional structural schematic diagram of another filtering device embodiment provided in this application, corresponding to the section shown in AA. Figure 4 This is a cross-sectional structural diagram of another embodiment of the filtering device provided in this application, corresponding to the cross section shown in AA. Figure 3 , Figure 4 The water flow path through the first cavity 211 and the second cavity 221 is shown by dashed lines with arrows. Figure 3In this process, the water flows from the second interface 222 into the second cavity 221, and then, under water pressure, enters the first cavity 211 through the first one-way conduction structure 261 and exits the filter device 1 from the first interface 212. The mineralization filter element 4 is located in the first cavity 211. Since the water first flows into the second cavity 221 and then into the first cavity 211, there is no water pressure in the water path when the filter device 1 is in the soaking state. The first one-way conduction structure 261 remains closed, and the first cavity 211 and the second cavity 221 are relatively isolated. The water in the second cavity 221 will not contain the minerals released by the mineralization filter element 4.

[0040] exist Figure 4 In this process, water flows from the second interface 222 into the second chamber 221, then through the first unidirectional flow structure 261 into the first chamber 211 and out of the filter device 1 from the first interface 212. The mineralization filter element 4 is located in the second chamber 221. Since the water first flows into the second chamber 221 and then into the first chamber 211, the water in the first chamber 211 contains minerals released by the mineralization filter element 4. However, due to the presence of the first unidirectional flow structure 261, the water in the first chamber 211 does not continuously soak the mineralization filter element 4. Therefore, when the filter device 1 is in a soaking state, the mineral content of the water in the first chamber 211 will not continue to rise, that is, the mineral content of the first chamber 211 will remain at a relatively low level. Even if the mineral content of the water in the second chamber 221 is high, when the filter device 1 outputs water again, the water in the second chamber 221 mixes with the water in the first chamber 211, which can effectively reduce the overall mineral content of the water output by the filter device 1.

[0041] The number of first unidirectional conduction structures 261 can be one or more. One first unidirectional conduction structure 261 is sufficient to satisfy the requirement of selectively connecting the first cavity 211 and the second cavity 221. For example... Figure 2 , 3 As shown in Figure 4, the number of first unidirectional conduction structures 261 can be two, and the two first unidirectional conduction structures 261 can be opened simultaneously under the action of unidirectional water pressure, thereby connecting the first cavity 211 and the second cavity 221, so that water can flow evenly between the first cavity 211 and the second cavity 221 through the first unidirectional conduction structure 261.

[0042] Furthermore, a first unidirectional flow structure 261 can be arranged along the central axis of the filter device 1, and two or more first unidirectional flow structures 261 can be arranged symmetrically relative to the central axis of the filter device 1. When the water flows between the first cavity 211 and the second cavity 221 through the first unidirectional flow structure 261, the water flow is more uniform and stable, which can improve the structural stability of the filter device 1.

[0043] In the structure provided in this specific embodiment, the outer shell 21 and the inner shell 22 are fitted together to form a first cavity 211 and a second cavity 221 that can only be selectively connected through the first unidirectional flow structure 261. The first unidirectional flow structure 261 can only be opened under the action of unidirectional water flow to connect the first cavity 211 and the second cavity 221. Only one of the first cavity 211 and the second cavity 221 is used to contain the mineralization filter element 4. When the filter device 1 is in an immersion state without water flow, the mineralization filter element 4 can only contact the water in one of the first cavity 211 and the second cavity 221 and release minerals. That is, it only contacts and releases minerals from a portion of the water entering the filter device 1. The total amount of minerals released by the filter device 1 during the immersion process can be reduced by reducing the volume of water in contact with the mineralization filter element 4.

[0044] When the filtration device 1 finishes the soaking process and outputs water, the one with the mineralization filter element 4 in the first chamber 211 and the second chamber 221 will output water with a higher mineral concentration, while the water output from the other chamber without the mineralization filter element 4 will have a lower mineral content or even not contain the minerals released by the mineralization filter element 4. The mixing of the two waters with different mineral concentrations ensures that even if the mineral concentration of the water output from the one with the mineralization filter element 4 in the first chamber 211 and the second chamber 221 reaches saturation, the mineral concentration of the final water output by the filtration device 1 can still be moderate. This effectively controls the mineral content in the mineralized water output by the filtration device 1 and solves the problem of excessive mineral content in the water during the soaking of the mineralization filter element 4 to a certain extent.

[0045] In a specific embodiment of this application, see [reference]. Figures 2-6 , Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section BB. Figure 6 yes Figure 1 A schematic diagram of the cross-sectional structure shown in section CC. Figure 5 The dashed line with arrows shows one possible water flow direction through the first pre-water passage 215 and the pre-cavity 214. Figure 6 The dashed line with an arrow indicates one possible water flow direction through the pre-filter chamber 214 and the second pre-filter water path 216. The filter device 1 may also include a pre-filter element 5. The device body 2 is also provided with a pre-filter chamber 214, a first pre-filter water path 215 communicating with the pre-filter chamber 214, and a second pre-filter water path 216 communicating with the pre-filter chamber 214.

[0046] Optionally, the pre-filter element 5 is disposed within the pre-filter chamber 214. A first pre-filter water passage 215 connects the first end 51 of the pre-filter element 5 to the inlet pipe, and a second pre-filter water passage 216 connects the second end 52 of the pre-filter element 5 to the outlet pipe. The pre-filter chamber 214 is isolated from the first chamber 211 and the second chamber 221. That is... Figure 5, Figure 6 As shown, an internal inlet and external outlet water path is formed. Water in the inlet pipe flows into the pre-filter chamber 214 through the first pre-filter water path 215 and contacts the first end 51 of the pre-filter element 5. The filtered water enters the second pre-filter water path 216 from the second end 52 of the pre-filter element 5 and is output from the outlet pipe through the second pre-filter water path 216.

[0047] Optionally, see Figure 7 , Figure 8 , Figure 7 This is a cross-sectional structural schematic diagram of another filtering device embodiment provided in this application, corresponding to the cross-section shown in BB. Figure 8 This is a cross-sectional view of another filtration device embodiment provided in this application, corresponding to the section shown in CC. The pre-filter element 5 is disposed within the pre-filter chamber 214. The first pre-filter water path 215 connects the first end 51 of the pre-filter element 5 to the outlet pipe, and the second pre-filter water path 216 connects the second end 52 of the pre-filter element 5 to the inlet pipe. The pre-filter chamber 214 is isolated from the first chamber 211 and the second chamber 221. That is, the water flow direction within the pre-filter chamber 214 is... Figure 5 , Figure 6 The water flows in opposite directions, forming an external inlet and internal outlet water path. The water in the inlet pipe flows into the pre-filter chamber 214 through the second pre-filter water path 216 and contacts the second end 52 of the pre-filter element 5. The filtered water enters the first pre-filter water path 215 from the first end 51 of the pre-filter element 5 and is output from the outlet pipe through the first pre-filter water path 215.

[0048] The inlet pipe can be connected to a water source and is used to input water into the pre-filter chamber 214, while the outlet pipe is used to output water from the pre-filter chamber 214. In actual use, the inlet and outlet pipes can be connected to the body of a device that interfaces with the filter device 1, such as a mineral water purifier or other mineralizing equipment.

[0049] In the structure provided in this specific embodiment, the filtration device 1 is further provided with a pre-filter chamber 214 isolated from the first chamber 211 and the second chamber 221. A pre-filter element 5 is provided inside the pre-filter chamber 214. The pre-filter element 5 is used to filter the water entering the pre-filter chamber 214 from the inlet pipe by cooperating with the first pre-filter water passage 215 and the second pre-filter water passage 216. This allows the filtration device 1 to not only prepare mineralized water with appropriate mineral content using the first chamber 211 and the second chamber 221, but also to output the water filtered by the pre-filter element 5 through the outlet pipe.

[0050] Furthermore, when the filter device 1 is connected to the outlet pipe, the end of the outlet pipe away from the second pre-filter 216 can be connected to one of the first interface 212 and the second interface 222, so that the water filtered by the pre-filter 5 is input into the first cavity 211 or the second cavity 221, and mineralized water with better water quality is prepared by using the water filtered by the pre-filter 5.

[0051] Optionally, when the filter device 1 is connected to the outlet pipe, the end of the outlet pipe away from the second pre-filter 216 can be connected to the water input end of the reverse osmosis filter element. The pure water second end of the reverse osmosis filter element is connected to one of the first interface 212 and the second interface 222, so that the water filtered by the pre-filter element 5 is further filtered by the reverse osmosis filter element. The water filtered by the pre-filter element 5 and the reverse osmosis filter element is then used to contact the mineralization filter element 4 to prepare mineralized water, so that the filter device 1 can output mineralized water with better water quality.

[0052] Optionally, the pre-filter 5 may include at least one of a PP cotton filter (polypropylene melt-blown filter) and an activated carbon filter, which can filter out impurities such as pigments, odor molecules, solid particles, and grease in the water, thereby improving the water quality.

[0053] In a specific embodiment of this application, see [reference]. Figures 2-6 The main body 2 of the device may specifically include an isolation member 23. The isolation member 23 may be disposed inside the outer shell 21, the first cavity 211 and the second cavity 221 are formed on one side of the isolation member 23, the front cavity 214 is located on the other side of the isolation member 23, and the first front water passage 215 and the second front water passage 216 are disposed in the outer shell 21.

[0054] In the structure provided in this specific embodiment, the isolation member 23 can abut against the inner wall of the outer shell 21 on the side facing the inner shell 22. The isolation member 23 divides the inner shell 21 into two mutually isolated areas, thereby realizing an independently set front cavity 214 using the simple and reliable isolation member 23 structure, avoiding the minerals that may be contained in the first cavity 211 and the second cavity 221 from affecting the water quality of the water in the front cavity 214.

[0055] Optionally, the isolation element 23 can be connected to the inner shell 22 to achieve relative fixation between the isolation element 23 and the inner shell 22, thereby reducing the probability of the isolation element 23 shaking inside the outer shell 21 due to water flow impact and improving the structural stability of the filter device 1.

[0056] In a specific embodiment of this application, see [reference]. Figure 2 , Figure 3 , Figure 4The main body 2 of the device may further include a first central tube 24 and a second central tube 25, with the first central tube 24 sleeved over the second central tube 25. A first central channel 241 is formed between the outer sides of the first central tube 24 and the second central tube 25, and the first central channel 241 connects the first cavity 211 and the first interface 212. The outer shell 21 is provided with a third interface 213, and the inner side of the second central tube 25 is provided with a second central channel 251, which connects the second interface 222 and the third interface 213. The front cavity 214 is located between the outer peripheral surface of the first central tube 24 and the inner wall of the outer shell 21.

[0057] In the structure provided in this specific embodiment, the first interface 212 and the first cavity 211 are connected by the first central tube 24 passing through the front cavity 214, and the second cavity 221 and the third interface 213 are connected by the second central tube 25 passing through the front cavity 214. This allows the first cavity 211 and the second cavity 221 to be connected to the structure outside the outer shell 21, enabling water to enter and exit the first cavity 211 and the second cavity 221, so that the filtration device 1 can use the externally input water to prepare mineralized water and output it.

[0058] Optionally, the first central tube 24 may not be fitted outside the second central tube 25, but may be set relatively independently of the second central tube 25. The first central channel 241 is set inside the first central tube 24, and the second central channel 251 is set inside the second central tube 25. The first central channel 241 connects the first cavity 211 and the first interface 212, and the second central channel 251 connects the second interface 222 and the third interface 213. In this case, the front cavity 214 may be located between the outer peripheral surface of the first central tube 24, the outer peripheral surface of the second central tube 25, and the inner wall of the outer shell 21.

[0059] Optionally, either the first central tube 24 or the second central tube 25 may be located on the side of the first cavity 211 or the second cavity 221 away from the front cavity 214, so that it is not set through the front cavity 214, but is directly connected to the outer shell 21.

[0060] Specifically, see Figure 4The isolation member 23 may specifically be provided with a first socket 231 and a second socket 232. The filter device 1 may also include a first socket 71 and a second socket 72 disposed within the housing 21. One end of the first central tube 24 is fitted into the first socket 231, and the other end of the first central tube 24 is fitted into the first socket 71. The first socket 71 is fitted and fixed to the housing 21, thereby isolating the first central channel 241 within the first central tube 24 from the front cavity 214 and realizing the communication between the first central channel 241 and the first cavity 211 and the first interface 212. One end of the second central tube 25 is fitted into the second sleeve portion 232, and the other end of the second central tube 25 is fitted into the second sleeve member 72. The second sleeve member 72 is fitted and fixed to the outer shell 21, thereby isolating the second central channel 251 in the second central tube 25 from the front cavity 214 and the first central channel 241, and realizing the connection between the second central channel 251 and the second interface 222 and the third interface 213.

[0061] Optionally, one end of the mineralizing filter element 4 can abut against the side of the isolation member 23 away from the pre-cavity 214, and the other end of the mineralizing filter element 4 can abut against the inner wall of the inner shell 22 or the inner wall of the outer shell 21. Water entering one of the first cavities 211 and the second cavities 221 must flow through the mineralizing filter element 4 inside before it can be output to the outside or enter the other of the first cavities 211 and the second cavities 221 through the first unidirectional conduction structure 261.

[0062] Further, see Figures 4-6 The filter device 1 may further include a third central tube 6, which can be sleeved around the outer periphery of the first central tube 24. A third central channel 61 is formed between the inner wall of the third central tube 6 and the outer wall of the first central tube 24, and one end of the third central channel 61 is connected to the first end 51 of the pre-filter element 5. The third central tube 6 is also provided with a third sleeve portion 62, which is sleeved and fixed to the outer shell 21, and the third sleeve portion 62 is connected to the third central channel 61 and the first pre-filter water passage 215, thereby realizing the connection between the first end 51 of the pre-filter element 5 and the first pre-filter water passage 215.

[0063] Optionally, one end of the pre-filter element 5 abuts against one side of the separator 23, and the other end of the pre-filter element 5 abuts against the side of the third central pipe 6 away from the third sleeve 62. The water entering the pre-filter chamber 214 must flow through one of the first end 51 and the second end 52 of the pre-filter element 5 and be filtered before it can be output through the other of the first end 51 and the second end 52 of the pre-filter element 5.

[0064] In a specific embodiment of this application, see [reference]. Figure 3The first one-way flow structure 261 may specifically include a one-way valve 27. Specifically, the first one-way flow structure 261 may include an opening in the inner shell 22 corresponding to the one-way valve 27, which can be opened under the action of one-way water flow. For example, the one-way valve 27 may be a duckbill valve.

[0065] When there is water flow in the opposite direction to the one-way valve 27 or no water flow (i.e., water immerses the mineralized filter element 4), the one-way valve 27 is located inside the opening and blocks the opening, thereby keeping the first one-way conduction structure 261 closed, and water cannot flow freely between the first chamber 211 and the second chamber 221 through the opening. When there is water flow in the forward direction of the one-way valve 27, the one-way valve 27 can be moved out of the opening under the pressure of the water flow, thereby opening the first one-way conduction structure 261, allowing water to flow between the first chamber 211 and the second chamber 221 through the opening.

[0066] Optionally, see Figure 4 The first unidirectional conduction structure 261 may also include a magnetic component 28, which may include a first magnetic element 281 and a second magnetic element 282. The polarities of the first magnetic element 281 and the second magnetic element 282 facing each other are opposite, and they can attract each other. The first magnetic element 281 is used to separate from the second magnetic element 282 under unidirectional water pressure to open the first unidirectional conduction structure 261.

[0067] Specifically, the second magnetic element 282 can be disposed in the inner shell 22, and the second magnetic element 282 can have an opening connecting the first cavity 211 and the second cavity 221. The first magnetic element 281 has a top abutment. When the first magnetic element 281 and the second magnetic element 282 are attracted, the top abutment is used to abut against the second magnetic element 282 around the opening, thereby blocking the opening and keeping the first one-way conduction structure 261 closed, preventing water from flowing between the first cavity 211 and the second cavity 221 through the opening. When water flows through, the water pressure pushes against the first magnetic element 281 to counteract the magnetic force, causing the first magnetic element 281 and the second magnetic element 282 to separate, opening the opening, thereby opening the first one-way conduction structure 261, allowing water to flow between the first cavity 211 and the second cavity 221 through the opening.

[0068] In a specific embodiment of this application, see [reference]. Figure 4 The first unidirectional conduction structure 261 may also include an elastic valve 29 (which may be a duckbill valve). The elastic valve 29 is provided with an elastic channel 291 that can be automatically closed under the action of an elastic restoring force. The elastic valve 29 is used to deform under the action of unidirectional water pressure to open the elastic channel 291.

[0069] Specifically, the elastic valve 29 may have a guide surface on the side facing the water flow direction, and the elastic channel 291 is located at the end of the guide surface. Under the guidance of the guide surface, the water flow impacts the elastic valve 29, compresses the elastic valve 29 around the elastic channel 291, thereby opening the elastic channel 291 and connecting the first cavity 211 and the second cavity 221 through the elastic channel 291.

[0070] In a specific embodiment of this application, the device body 2 may also be provided with a second unidirectional conduction structure 262.

[0071] Optionally, when the mineralizing filter element 4 is located inside the first cavity 211, the second unidirectional flow structure 262 is used to open under unidirectional water pressure to connect the first interface 212 and the first cavity 211. This isolates the first cavity 211, where the mineralizing filter element 4 is located, from the outside when no water flows through it, preventing the mineralizing filter element 4 from releasing minerals into the water outside the first cavity 211 through the first interface 212. This effectively controls the total amount of minerals released by the filtration device 1 and, to some extent, solves the problem of excessive mineral content in the water when the mineralizing filter element 4 is soaked.

[0072] Optionally, when the mineralizing filter element 4 is located within the second cavity 221, the second unidirectional flow structure 262 is used to open under unidirectional water pressure to connect the second interface 222 and the second cavity 221. This isolates the second cavity 221, where the mineralizing filter element 4 is located, from the outside environment when no water flows through it, preventing the mineralizing filter element 4 from releasing minerals into the water outside the second cavity 221 through the second interface 222. This effectively controls the total amount of minerals released by the filtration device 1 and, to some extent, solves the problem of excessive mineral content in the water when the mineralizing filter element 4 is soaked.

[0073] In one specific embodiment of this application, the second one-way conduction structure 262 may include a one-way valve 27.

[0074] Specifically, when the mineralizing filter element 4 is located within the first cavity 211, the second one-way flow structure 262 can be located at the first interface 212, and the one-way valve 27 can move relative to the first interface 212 under the action of water flow. When there is water flow in the opposite direction to the one-way valve 27 or when there is no water flow (i.e., the mineralizing filter element 4 is soaked in water), the one-way valve 27 is located within the first interface 212 and blocks the first interface 212, thereby keeping the second one-way flow structure 262 closed, and water cannot flow into or out of the first cavity 211 through the first interface 212. When there is water flow in the forward direction of the one-way valve 27, the one-way valve 27 can be moved out of the first interface 212 under the pressure of the water flow, thereby opening the second one-way flow structure 262, allowing water to flow into or out of the first cavity 211 through the first interface 212.

[0075] Specifically, when the mineralizing filter element 4 is located within the second cavity 221, the second one-way flow structure 262 can be located within the second central pipe 25, and the one-way valve 27 can be fitted inside the second central pipe 25 and can move relative to the second central pipe 25 under the action of water flow. When there is water flow in the opposite direction to the one-way valve 27 or no water flow (i.e., water immerses the mineralizing filter element 4), the one-way valve 27 is fitted inside the second central pipe 25 and blocks the second central pipe 25, thereby keeping the second one-way flow structure 262 closed, and water cannot flow into or out of the second cavity 221 through the second central pipe 25. When there is water flow in the forward direction of the one-way valve 27, the one-way valve 27 can be moved out of the second central pipe 25 under the pressure of the water flow, thereby opening the second one-way flow structure 262, allowing water to flow into or out of the second cavity 221 through the second central pipe 25.

[0076] Optionally, see Figure 4 The second unidirectional conduction structure 262 may also include a magnetic attraction component 28, which may include a first magnetic element 281 and a second magnetic element 282. The first magnetic element 281 and the second magnetic element 282 have opposite polarities and can attract each other. The first magnetic element 281 is used to separate from the second magnetic element 282 under unidirectional water pressure to open the second unidirectional conduction structure 262.

[0077] Specifically, when the mineralized filter element 4 is located within the first cavity 211, the second magnetic element 282 can be disposed around the first interface 212. The first magnetic element 281 has a top abutment. When the first magnetic element 281 and the second magnetic element 282 are attracted, the top abutment abuts against the second magnetic element 282 around the first interface 212, thereby blocking the first interface 212 and keeping the second one-way conduction structure 262 closed, preventing water from flowing into or out of the first cavity 211 through the first interface 212. When water flows through, the water pressure pushes against the magnetic force, causing the first magnetic element 281 and the second magnetic element 282 to separate, opening the first interface 212, thereby opening the second one-way conduction structure 262, allowing water to flow into or out of the first cavity 211 through the first interface 212.

[0078] When the mineralizing filter element 4 is located inside the second cavity 221, the second magnetic element 282 can be disposed at one end of the second central tube 25 connecting to the second cavity 221. The first magnetic element 281 has a top abutment. When the first magnetic element 281 and the second magnetic element 282 are attracted, the top abutment is used to abut against one end of the second central tube 25 connecting to the second cavity 221, thereby blocking the second central tube 25 and keeping the second one-way conduction structure 262 closed, preventing water from flowing into or out of the second cavity 221 through the second central tube 25. When water flows through, the water pressure pushes against the magnetic force, causing the first magnetic element 281 and the second magnetic element 282 to separate, and the second central tube 25 connects to the second cavity 221, thereby opening the second one-way conduction structure 262, allowing water to flow into or out of the second cavity 221 through the second central tube 25.

[0079] See Figure 4 The second unidirectional conduction structure 262 may also include a resilient valve 29. The resilient valve 29 has a closed resilient channel 291, and the resilient valve 29 is used to deform under unidirectional water pressure to open the resilient channel 291.

[0080] Specifically, the elastic valve 29 may have a guide surface on the side facing the water flow direction, and the elastic channel 291 is located at the end of the guide surface. Under the guidance of the guide surface, the water flow impacts the elastic valve 29 and compresses the elastic valve 29 around the elastic channel 291, thereby opening the elastic channel 291. The elastic channel 291 allows water to flow into or out of one of the first cavity 211 and the second cavity 221.

[0081] In a specific embodiment of this application, see [reference]. Figures 2-6 The filtration device 1 may also include a buffer filter element 3, a mineralization filter element 4 housed in one of the first cavity 211 and the second cavity 221, and a buffer filter element 3 housed in the other of the first cavity 211 and the second cavity 221.

[0082] Optionally, the buffer filter element 3 may include at least one of a nanofiltration filter element, an activated carbon filter element, a zeolite filter element, a bamboo charcoal filter element, and a PP cotton filter element (polypropylene melt-blown filter element), which can effectively filter out impurities such as pigments, odor molecules, solid particles, and grease in the water, thereby improving the water quality.

[0083] Nanofiltration cartridges are a type of filter cartridge that is innovatively invented through the cross-fertilization of advanced nanotechnology and traditional filtration technology, falling between ultrafiltration and reverse osmosis. Their separation performance relies on the nanoscale microporous structure in their active separation layer, and their separation mechanism follows the adsorption-dissolution-diffusion-filtration model. While retaining organic matter and heavy metals that can pass through ultrafiltration, they also allow some minerals that would otherwise be retained by reverse osmosis to pass through, enabling the concentration and salt permeation processes to occur simultaneously, thereby achieving specific separation and purification requirements.

[0084] See Figures 2-6 One end of the buffer filter element 3 abuts against the side of the isolation member 23 away from the front chamber 214, and the other end of the buffer filter element 3 abuts against the inner wall of the inner shell 22 or the inner wall of the outer shell 21. The water entering one of the first chamber 211 and the second chamber 221 must pass through the buffer filter element 3 before it can be output to the outside or enter the other of the first chamber 211 and the second chamber 221 through the first unidirectional conduction structure 261 and come into contact with the mineralization filter element 4.

[0085] Optionally, when the first unidirectional flow structure 261 is open and the buffer filter element 3 is located upstream of the mineralization filter element 4, the buffer filter element 3 may include an antagonistic filter element. The antagonistic filter element is used to inhibit the release of minerals from the mineralization filter element 4 into the water. The antagonistic filter element can dissolve antagonistic substances into the water, which are used to inhibit the release of minerals from the mineralization filter element 4. When water is introduced into the filtration device 1, the water first contacts the antagonistic filter element and then the mineralization filter element 4. The antagonistic substances dissolved by the antagonistic filter element come into contact with the mineralization filter element 4 along with the water, thereby inhibiting excessive dissolution of minerals in the mineralization filter element 4. This controls the mineral content in the mineralized water output by the filtration device 1, reducing the probability of excessively high mineral content in the mineralized water.

[0086] For example, the mineralizing filter element 4 can be a zinc mineralizing filter element or a copper mineralizing filter element, that is, the mineralizing filter element 4 contains zinc and / or copper. The antagonistic filter element can be an alkaline filter element. The water flow first contacts the alkaline filter element and then contacts the mineralizing filter element 4. The alkaline substances dissolved in the water by the alkaline filter element can come into contact with the mineralizing filter element 4 with the water flow, thereby inhibiting the dissolution of zinc and copper elements in the mineralizing filter element 4 to a certain extent. Optionally, the antagonistic filter element can include at least one of materials such as calcite, aragonite, magnesite, and dolomite. The mineralizing filter element 4 can include at least one of materials such as smithsonite, calamine, and hydrozinc ore.

[0087] Specifically, taking mineralized filter element 4 as an example of a zinc mineralized filter element, the dissolution reaction of zinc element (containing zinc filter material, such as smithsonite) in water is: ZnCO3=Zn 2+ +CO3 2- Under normal conditions (e.g., pure water obtained after RO membrane filtration), Zn 2+ The saturated solubility of Zn in water can reach 6.0 mg / L, far exceeding the national standard limit of 1.0 mg / L. Furthermore, under constant water quality conditions, Zn... 2+ and CO3 2- It is dissolved simultaneously. Therefore, CO3 2- By controlling the concentration of Zn to the lowest possible level, 2+ The saturated dissolution concentration is controlled at the lowest level.

[0088] When the pH of the water is acidic, due to the presence of H+ in the system...+ Excessive plasma inhibits the continued release of H2CO3 through hydrolysis. + As the pH value of the water gradually increases, the H in the system... + As plasma gradually decreases, the inhibitory effect on H2CO3 hydrolysis gradually decreases, and H... + As ions are gradually released through hydrolysis, H2CO3 in the water is first converted into HCO3-. 3- As the pH value of the water continues to rise, HCO3- 3- H in + Ions also continued to be released, HCO3- 3- Gradually converted into CO3 2- It is not difficult to see that CO3 2- Its content in water is clearly correlated with the pH value of the water.

[0089] Optionally, when the first unidirectional flow structure 261 is open and the buffer filter element 3 is downstream of the mineralization filter element 4, the buffer filter element 3 may include an adsorption filter element. The adsorption filter element is used to adsorb the minerals released into the water by the mineralization filter element 4. When the filtration device 1 discharges water, the water containing the minerals dissolved from the mineralization filter element 4 still needs to come into contact with the adsorption filter element so that the minerals in the water can be partially adsorbed by the adsorption filter element, thereby reducing the mineral content in the mineralized water output by the filtration device 1 and reducing the probability of excessively high mineral content in the mineralized water.

[0090] For example, the adsorption filter element may include at least one of ion exchange resin filter element, reverse osmosis filter element, activated alumina filter element, KDF (high purity copper-zinc alloy) filter element, and zeolite filter element.

[0091] Ion exchange resin filter cartridges can adsorb at least one of the following mineral elements: calcium, magnesium, lead, and copper. Reverse osmosis filter cartridges can adsorb at least one of the following mineral elements: calcium, magnesium, sodium, fluorine, arsenic, and nitrates. Activated alumina filter cartridges can adsorb fluorides, arsenic, and sulfides. KDF (high-purity copper-zinc alloy) filter cartridges can adsorb lead, mercury, chlorine, hydrogen sulfide, and some calcium- and magnesium-containing minerals. Zeolite filter cartridges can adsorb ammonia nitrogen, some heavy metals, and radioactive substances.

[0092] To solve the above-mentioned technical problems, this application also provides a mineral spring mineralization device, including a water outlet component and a filter device 1 as described in any of the above embodiments. The water outlet component is provided with a mineralized water outlet, which is connected to one of the first interface 212 and the second interface 222 of the filter device 1.

[0093] Furthermore, the mineral water mineralization equipment may also be equipped with a mineralization inlet, which is connected to the other of the first interface 212 and the second interface 222, so that external water can enter the first interface 212 or the second interface 222 through the mineralization inlet, thereby using the mineralization filter element 4 to prepare mineralized water and output it through the mineralization outlet.

[0094] In the structure provided in this specific embodiment, the outer shell 21 and the inner shell 22 are fitted together to form a first cavity 211 and a second cavity 221 that can only be selectively connected through the first one-way conduction structure 261. The first one-way conduction structure 261 can only be opened under the action of unidirectional water flow to connect the first cavity 211 and the second cavity 221. Only one of the first cavity 211 and the second cavity 221 is used to contain the mineralization filter element 4. When the filter device 1 is in an immersion state without water flow, the mineralization filter element 4 can only contact the water in one of the first cavity 211 and the second cavity 221 and release minerals. The total amount of minerals released in the filter device 1 can be controlled by controlling the volume of the water in contact with the mineralization filter element 4.

[0095] When the filtration device 1 finishes the soaking process and outputs water, the one with the mineralization filter element 4 in the first chamber 211 and the second chamber 221 will output water with a higher mineral concentration, while the water output from the other chamber without the mineralization filter element 4 will have a lower mineral content or even no minerals released by the mineralization filter element 4. The mixing of the two waters with different mineral concentrations makes the mineral concentration of the mineralized water output through the mineralization outlet moderate, thereby effectively controlling the mineral content in the mineralized water and solving to some extent the problem that the mineral content in the mineralized water output after the mineralization filter element 4 has been soaked is prone to exceed the standard.

[0096] In this application, the terms "embodiment" and "implementation" mean that a specific feature, part, or characteristic described in connection with an embodiment can be included in at least one embodiment of this application. The appearance of these phrases in various places in the specification does not necessarily refer to the same embodiment, nor are they independent or alternative embodiments mutually exclusive with other embodiments. Those skilled in the art will understand, explicitly and implicitly, that the embodiments described in this application can be combined with other embodiments. Furthermore, it should be understood that the features, parts, or characteristics described in the various embodiments of this application can be arbitrarily combined to form another embodiment that does not depart from the spirit and scope of the technical solution of this application, provided there is no contradiction between them.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A filtration device, characterized in that, include: The main body (2) of the device includes an outer shell (21) and an inner shell (22). The outer shell (21) is fitted over the inner shell (22). A first cavity (211) is formed between the outer shell (21) and the outer side of the inner shell (22). The outer shell (21) is provided with a first interface (212) communicating with the first cavity (211). A second cavity (221) is formed on the inner side of the inner shell (22). The inner shell (22) is provided with a second interface (222) communicating with the second cavity (221). The main body (2) of the device has one or at least two first unidirectional conduction structures (261). The first unidirectional conduction structure (261) is used to open under unidirectional water pressure to conduct the first cavity (211) and the second cavity (221). The mineralized filter element (4) is housed in the first cavity (211) or the second cavity (221).

2. The filtration device according to claim 1, characterized in that, The filtration device also includes a pre-filter (5); The main body (2) of the device is also provided with a pre-filter chamber (214), a first pre-filter water passage (215) connecting the pre-filter chamber (214) and a second pre-filter water passage (216) connecting the pre-filter chamber (214), and the pre-filter element (5) is disposed in the pre-filter chamber (214); the first pre-filter water passage (215) is used to connect the first end (51) of the pre-filter element (5) and the water inlet pipe, and the second pre-filter water passage (216) is used to connect the second end (52) of the pre-filter element (5) and the water outlet pipe, and the pre-filter chamber (214) is isolated from the first cavity (211) and the second cavity (221).

3. The filtration device according to claim 2, characterized in that, The main body (2) of the device includes an isolation member (23), which is disposed inside the outer shell (21). The first cavity (211), the second cavity (221), and the inner shell (22) are located on one side of the isolation member (23), and the front cavity (214) is located on the other side of the isolation member (23). The first front water passage (215) and the second front water passage (216) are disposed on the outer shell (21).

4. The filtration device according to claim 3, characterized in that, The main body (2) of the device also includes a first central tube (24) and a second central tube (25). The first central tube (24) is sleeved on the outside of the second central tube (25). A first central channel (241) is formed between the outer sides of the first central tube (24) and the second central tube (25). The first central channel (241) connects the first cavity (211) and the first interface (212). The outer shell (21) is provided with a third interface (213). The inner side of the second central tube (25) is provided with a second central channel (251). The second central channel (251) connects the second interface (222) and the third interface (213). The front cavity (214) is located between the outer peripheral surface of the first central tube (24) and the inner wall of the outer shell (21).

5. The filtration device according to any one of claims 1 to 4, characterized in that, The first one-way conduction structure (261) includes a one-way valve (27); or, The first unidirectional conduction structure (261) includes a magnetic attraction component (28), which includes a first magnetic element (281) and a second magnetic element (282). The first magnetic element (281) and the second magnetic element (282) have opposite polarities. The first magnetic element (281) is used to separate from the second magnetic element (282) under unidirectional water pressure to open the first unidirectional conduction structure (261).

6. The filtration device according to any one of claims 1 to 4, characterized in that, The first unidirectional conduction structure (261) includes an elastic valve (29), which has a closed elastic channel (291) and is used to deform under unidirectional water pressure to open the elastic channel (291).

7. The filtration device according to any one of claims 1 to 4, characterized in that, The main body (2) of the device is also provided with a second unidirectional conduction structure (262); The mineralized filter element (4) is located inside the first cavity (211), and the second unidirectional conduction structure (262) is used to open under unidirectional water pressure to connect the first interface (212) and the first cavity (211); or, The mineralized filter element (4) is located inside the second cavity (221), and the second unidirectional conduction structure (262) is used to open under unidirectional water pressure to connect the second interface (222) and the second cavity (221).

8. The filtration device according to claim 7, characterized in that, The second one-way conduction structure (262) includes a one-way valve (27); or, The second unidirectional conduction structure (262) includes a magnetic attraction component (28), which includes a first magnetic element (281) and a second magnetic element (282). The first magnetic element (281) and the second magnetic element (282) have opposite polarities. The first magnetic element (281) is used to separate from the second magnetic element (282) under unidirectional water pressure to open the first unidirectional conduction structure (261); or, The second unidirectional conduction structure (262) includes an elastic valve (29) having a closed elastic channel (291) and the elastic valve (29) being deformed under unidirectional water pressure to open the elastic channel (291).

9. The filtration device according to any one of claims 1 to 4, characterized in that, The filtration device (1) further includes a buffer filter element (3), the mineralization filter element (4) is housed in one of the first cavity (211) and the second cavity (221), and the buffer filter element (3) is housed in the other of the first cavity (211) and the second cavity (221); When the first unidirectional conduction structure (261) is open, the buffer filter element (3) is located upstream of the mineralization filter element (4), and the buffer filter element (3) includes an antagonistic filter element used to inhibit the release of minerals into the water by the mineralization filter element (4); or, When the first unidirectional conduction structure (261) is open, the buffer filter element (3) is located downstream of the mineralization filter element (4). The buffer filter element (3) includes an adsorption filter element, which is used to adsorb the minerals released into the water by the mineralization filter element (4).

10. A mineral spring mineralization device, characterized in that, The filter includes a water outlet component and a filter device (1) as described in any one of claims 1 to 9, wherein the water outlet component is provided with a mineralized water outlet, and the mineralized water outlet is connected to a first interface (212) or a second interface (222) of the filter device (1).

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