A filter cartridge device and a mineral water mineralization apparatus having the same

Abstract

The application relates to the technical field of mineral spring mineralization equipment, in particular to a filter core device and a mineral spring mineralization equipment with the same. The filter core device comprises a device main body, the device main body has a shell, a first space and a second space are arranged in the shell in the axial direction, a mineralization cavity and a second buffer cavity are arranged in the second space, a mineralization filter core is arranged in the mineralization cavity; a first buffer cavity is arranged in the first space; the mineralization cavity and the second buffer cavity are arranged in the radial direction of the shell, or the second buffer cavity and the mineralization cavity are arranged in the radial direction of the shell; the first buffer cavity and the mineralization cavity are provided with a first pressure conduction structure which can be conducted under the action of water pressure; a second pressure conduction structure which can be conducted under the action of water pressure is arranged between the mineralization cavity and the second buffer cavity, the mineralization water concentration flowing out of the filter core can be effectively prevented from exceeding the standard, the user can be prevented from drinking the mineralization water exceeding the standard, and the safety and reliability are relatively good.

Description

Technical Field

[0001] This application relates to the field of mineralized drinking water equipment technology, specifically to a filter element device and mineralized water equipment having the filter element device. Background Technology

[0002] As people's living standards continue to improve, their demand for drinking water is also increasing, and mineralized water has become a popular choice for drinking water.

[0003] Currently, mineralized water is typically prepared using mineralization filter cartridges. The minerals 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, when the filter cartridge is immersed in water, the prolonged contact time between the cartridge and the water, and the fact that the filter media is housed within a casing and submerged in all the water within the casing, can easily lead to a high concentration of minerals in the water and a significant amount of dissolution. This can result in excessively high mineral content in the water, which may have negative effects on human health. Utility Model Content

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

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a filter element device, comprising: a device body, the device body having a shell, a first space and a second space being arranged axially within the shell, a mineralization chamber and a second buffer chamber being arranged within the second space, and a mineralization filter element being arranged within the mineralization chamber; a first buffer chamber being arranged within the first space; the mineralization chamber and the second buffer chamber being arranged radially inward and outward from the shell, or the second buffer chamber and the mineralization chamber being arranged radially inward and outward from the shell;

[0006] The first buffer chamber and the mineralization chamber are provided with a first pressure conducting structure that can be connected under water pressure;

[0007] A second pressure conduction structure that can be connected under water pressure is provided between the mineralization cavity and the second buffer cavity.

[0008] Optionally, the main body of the device is provided with a series water passage, and along the water flow direction of the series water passage, the mineralization chamber is disposed between the second buffer chamber and the first buffer chamber;

[0009] Alternatively, the second buffer cavity can be connected in parallel with the first buffer cavity and then connected in series with the mineralization cavity.

[0010] Optionally, a transverse partition is provided inside the housing, the outer periphery of the transverse partition abuts against the inner peripheral wall of the housing, the second space is located on one side of the transverse partition, and the first space is located on the other side of the transverse partition;

[0011] The second space is provided with a cylindrical isolation cylinder, and the mineralization cavity and the second buffer cavity are respectively located on the inner and outer sides of the isolation cylinder, or the second buffer cavity and the mineralization cavity are respectively located on the inner and outer sides of the isolation cylinder.

[0012] Optionally, a transverse partition is provided inside the housing, the outer periphery of the transverse partition abuts against the inner peripheral wall of the housing, the second space is located on one side of the transverse partition, and the first space is located on the other side of the transverse partition;

[0013] The second space is provided with a cylindrical isolation cylinder, and the mineralization cavity and the first buffer cavity are respectively located on the inner and outer sides of the isolation cylinder, or the first buffer cavity and the mineralization cavity are respectively located on the inner and outer sides of the isolation cylinder.

[0014] Optionally, the transverse partition is provided with a first installation channel communicating with the first buffer chamber and the mineralization chamber, and the first pressure conduction structure is provided in the first installation channel.

[0015] Optionally, the isolation cylinder is connected to an end cap, the mineralization filter element is disposed in the mineralization cavity inside or outside the isolation cylinder, the end cap is provided with a second installation channel communicating with the mineralization cavity and the second buffer cavity, and the second pressure conduction structure is disposed in the second installation channel;

[0016] Alternatively, the first pressure conduction structure may be disposed within the isolation cylinder.

[0017] Optionally, the first pressure-conducting structure is a check valve; and / or, the second pressure-conducting structure is a check valve.

[0018] Optionally, the main body of the device has an inlet and an outlet, the inlet being connected to one of the second buffer chamber and the first buffer chamber, and the outlet being connected to the other of the second buffer chamber and the first buffer chamber.

[0019] Optionally, a pre-filter is provided in the second buffer chamber; and a post-filter is provided in the first buffer chamber.

[0020] Optionally, an antagonistic filter element is provided in the first buffer chamber, which is used to inhibit the release of minerals into the water by the mineralizing filter element.

[0021] This application also provides a mineral spring mineralization device, including a main body and the aforementioned filter element device, wherein the filter element device is connected to the main body of the device.

[0022] This application provides a filter element device and a mineral spring mineralization device having the filter element device. The housing contains a first space and a second space arranged axially and are relatively isolated from each other. A first buffer chamber is provided within the first space; a mineralization chamber and a second buffer chamber are provided within the second space. The first buffer chamber and the mineralization chamber are provided with a first pressure conducting structure that allows unidirectional water pressure to conduct. A second pressure conducting structure that allows unidirectional water pressure to conduct is provided between the mineralization chamber and the second buffer chamber. A mineralization filter element is disposed within the mineralization chamber. The mineralization chamber and the second buffer chamber are arranged radially inward and outward along the shell, or the second buffer chamber and the mineralization chamber are arranged radially inward and outward along the shell. The arrangement of the first buffer chamber, the mineralization chamber, and the second buffer chamber is compact, and the volume of the mineralization chamber can be designed to be relatively small. Compared with the prior art where the interior of the filter element device is entirely or mostly a mineralization chamber, the technical solution of this application can significantly limit the water storage volume of the mineralization chamber. Thus, when the water flow stops, that is, when there is no water flow in the water path of the filter element device, there is no water pressure, and the water in the mineralization chamber will not communicate with the water in the second buffer chamber, nor will the water in the mineralization chamber communicate with the water in the first buffer chamber. In this way, the water volume for soaking the mineralization filter element will be significantly smaller than that in the prior art. Even after prolonged soaking, the mineralized filter cartridge dissolves into the water in the mineralization chamber, forming high-concentration mineralized water. However, due to the small volume of the mineralization chamber, the total amount of minerals is significantly reduced compared to existing mineralized filter cartridges. Since the water in the second and first buffer chambers is not connected to the water in the mineralization chamber when the water flow is static, the mineral content in the second and first buffer chambers is low or even nonexistent. Therefore, the next time the filter cartridge is used, the high-concentration mineralized water in the mineralization chamber enters the second / first buffer chamber under the action of water flow. This high-concentration mineralized water is diluted by the water in the second / first buffer chamber, effectively preventing the concentration of mineralized water flowing out of the filter cartridge from exceeding the standard, thus avoiding the consumption of excessively mineralized water by users. This results in relatively better safety and reliability. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the assembly planar structure of the filter element device provided in the embodiments of this application;

[0025] Figure 2 yes Figure 1A schematic diagram of the cross-sectional structure of section AA in the middle filter element device (when there is no filter element in the second buffer chamber);

[0026] Figure 3 yes Figure 1 A schematic diagram of the cross-sectional structure of section AA (first water flow direction) in the middle filter element device (when there is a filter element in the second buffer chamber);

[0027] Figure 4 yes Figure 1 A cross-sectional view of the AA section (second water flow direction) in the middle filter element device (when the second buffer chamber has a filter element). 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] As people's living standards continue to improve, their demand for drinking water is also increasing, and mineralized water has become a popular choice for drinking water.

[0034] Currently, mineralized water is typically prepared using mineralization filter cartridges. The minerals 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, when the filter cartridge is immersed in water, the prolonged contact time between the cartridge and the water, and the fact that the filter media is housed within a casing and submerged in all the water within the casing, can easily lead to a high concentration of minerals in the water and a significant amount of dissolution. This can result in excessively high mineral content in the water, which may have negative effects on human health.

[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 2This embodiment provides a filter element device 100, including a device body 10. The device body 10 has a housing 190, and a first space 110 and a second space 120 are axially disposed within the housing 190. In this embodiment, the first space 110 is close to a first end of the device body 10, and the second space 120 is close to a second end of the device body 10. The first space 110 and the second space 120 are relatively isolated and connected by a pressure conducting structure. A first buffer chamber 111 is disposed within the first space 110; a mineralization chamber 121 and a second buffer chamber 122 are disposed within the second space 120, and the mineralization chamber 121 and the second buffer chamber 122 are relatively isolated and connected by another pressure conducting structure. A mineralized filter element 200 is disposed within the mineralization chamber 121; the mineralization chamber 121 and the second buffer chamber 122 are disposed radially along the inner and outer sides of the housing 190, or the second buffer chamber 122 and the mineralization chamber 121 are disposed radially along the inner and outer sides of the housing 190. A first pressure conducting structure 151, which can be opened under water pressure, is provided between the first buffer chamber 111 and the mineralization chamber 121. Under no water pressure, the first pressure conducting structure 151 remains closed. A second pressure conducting structure 152, which can be opened under water pressure, is provided between the mineralization chamber 121 and the second buffer chamber 122. Under no water pressure, the second pressure conducting structure 152 remains closed. In this embodiment, the mineralization chamber 121 is arranged around the outside of the second buffer chamber 122. The arrangement of the first buffer chamber 111, the mineralization chamber 121, and the second buffer chamber 122 is compact, and the volume of the mineralization chamber 121 can be designed to be relatively small. Compared to the prior art where the internal volume of the filter cartridge is entirely or mostly mineralization chambers, the technical solution of this application can significantly reduce the water storage volume of the mineralization chamber 121.Thus, when the water flow stops, i.e., when no water flows through the filter element device 100, the water in the mineralization chamber 121 will not communicate with the water in the second buffer chamber 122, nor with the water in the first buffer chamber 111. The amount of water used to soak the mineralization filter element 200 will be significantly reduced compared to existing technologies. Even after prolonged soaking, when the mineralization filter element 200 is saturated and dissolves into the water in the mineralization chamber 121, forming highly concentrated mineralized water, the volume of the highly concentrated mineralized water is small due to the small volume of the mineralization chamber 121. Therefore, the total amount of mineralized material is also significantly reduced compared to existing mineralization filter elements. This is because, in a static state (without water flow), the water in the mineralization chamber 121 will not communicate with the water in the second buffer chamber 122, nor with the water in the first buffer chamber 111. (During the water flow pressure state), the water in the second buffer chamber 122 and the first buffer chamber 111 is not connected to the water in the mineralization chamber 121. Therefore, the mineral content in the second buffer chamber 122 and the first buffer chamber 111 is low or even non-existent. Thus, when the filter cartridge device 100 is used again, under the action of water flow, the high-concentration mineralized water in the mineralization chamber 121 enters the second buffer chamber 122 and / or the first buffer chamber 111. The high-concentration mineralized water is diluted by the water in the second buffer chamber 122 and the first buffer chamber 111, thereby effectively preventing the concentration of mineralized water flowing out of the filter cartridge from exceeding the standard, so as to avoid the user drinking the excessive mineralized water. The safety and reliability are relatively good.

[0037] For specific applications, please refer to Figure 2 , Figure 3 The device body 10 has an inlet 131 and an outlet 132, which can be located at the first end of the device body 10. The inlet 131 is connected to one of the second buffer chamber 122 and the first buffer chamber 111, and the outlet 132 is connected to the other of the second buffer chamber 122 and the first buffer chamber 111. The inlet 131 can be connected to a water supply line, which can be a pure water pipeline, such as the outlet pipe of an RO filter. The outlet 132 can be connected to a water outlet device, such as a faucet. In this embodiment, the inlet 131 is connected to the first buffer chamber 111, and the second buffer chamber 122 is connected to the outlet 132.

[0038] Specifically, Figure 2 , Figure 3The arrows in the diagram indicate the direction of water flow in this embodiment. The main body 10 of the device may be provided with a series water passage. Along the direction of water flow in the series water passage, the mineralization chamber 121 is located between the first buffer chamber 111 and the second buffer chamber 122. That is, after the water flows into the filter device 100 from the inlet 131, it can flow to the first buffer chamber 111, and from the first buffer chamber 111 through the first pressure conducting structure 151 to the mineralization chamber 121, and then from the mineralization chamber 121 through the second pressure conducting structure 152 to the second buffer chamber 122, and then flow out of the filter device 100 from the outlet 132. Due to the arrangement of the first pressure conducting structure 151 and the second pressure conducting structure 152, the water in the mineralization chamber 121 cannot flow back to the first buffer chamber 111, and the water in the first buffer chamber 122 cannot flow back to the mineralization chamber 121. The first pressure conducting structure 151 and the second pressure conducting structure 152 can be one-way valves. Under the action of unidirectional water flow pressure, the first pressure conducting structure 151 and the second pressure conducting structure 152 can allow water to flow unidirectionally through the mineralization chamber 121, preventing the water in the mineralization chamber 121 from diffusing into the second buffer chamber 122 and the first buffer chamber 111 in a static state. In specific applications, as an alternative, the water flow direction can also be... Figure 2 The direction indicated by the middle arrow is opposite, that is: in the second space 120, as... Figure 4 As shown, the direction of water flow can be radially outward and inward (first flowing through the mineralization chamber 121, then through the second buffer chamber 122). The conduction direction of the first pressure conduction structure 151 and the second pressure conduction structure 152 can be adjusted according to the selected water flow direction.

[0039] As an alternative to the series water circuit, the second buffer chamber 122 and the first buffer chamber 111 can be connected in parallel and then connected in series with the mineralization chamber 121. In specific applications, the second buffer chamber 122 and the first buffer chamber 111 can be connected in parallel to form a parallel structure through the connection and connection of internal pipelines, and the mineralization chamber 121 can be connected in series with the parallel structure to meet different usage scenarios.

[0040] Specifically, see Figure 2 , Figure 3 The housing 190 is provided with a transverse partition 180, the outer periphery of which abuts against the inner peripheral wall of the housing 190. The second space 120 is located on one side of the transverse partition 180, and the first space 110 is located on the other side of the transverse partition 180. The structure is simple and compact.

[0041] Specifically, see Figure 2 , Figure 3The second space 120 is provided with a cylindrical isolation cylinder 170. The mineralization chamber 121 and the second buffer chamber 122 are respectively located on the inner and outer sides of the isolation cylinder 170, or the second buffer chamber 122 and the mineralization chamber 121 are respectively located on the inner and outer sides of the isolation cylinder 170. One end of the isolation cylinder 170 can be fixed or integrally connected to the transverse partition 180. In some optional embodiments, the isolation cylinder 170 can be connected to the transverse partition 180 by means of rotation buckle, threaded connection, etc.

[0042] Specifically, see Figure 2 , Figure 3 The transverse partition 180 is provided with a first installation channel communicating with the first buffer chamber 111 and the mineralization chamber 121, and the first pressure conducting structure 151 is disposed in the first installation channel. When water flows (i.e., when the filter device 100 is in use), the water flows into the first buffer chamber 111 and then enters the mineralization chamber 121 through the first pressure conducting structure 151 of the first installation channel. The water in the mineralization chamber 121 cannot flow back to the first buffer chamber 111 through the first pressure conducting structure 151. Even when the water flow stops or there is reverse water pressure, the water in the mineralization chamber 121 cannot flow back to the first buffer chamber 111 through the first pressure conducting structure 151.

[0043] Specifically, see Figure 2 , Figure 3 The other end of the isolation cylinder 170 can be connected to an end cap 171. The mineralization filter element 200 is disposed in the mineralization chamber 121 inside or outside the isolation cylinder 170. In this embodiment, the mineralization filter element 200 is disposed on the outside of the isolation cylinder 170, and the inside of the isolation cylinder 170 is a second buffer chamber 122. The end cap 171 is provided with a second installation channel communicating with the mineralization chamber 121 and the second buffer chamber 122. The second pressure conducting structure 152 is disposed in the second installation channel; or, the second pressure conducting structure 152 is disposed in the isolation cylinder 170. When the water flows (i.e., when the filter device 100 is in use), the water enters the mineralization chamber 121 and then enters the second buffer chamber 122 through the second pressure conduction structure 152 of the second installation channel. The water in the second buffer chamber 122 cannot flow back to the mineralization chamber 121 through the second pressure conduction structure 152. When the water flow stops, since there is no water pressure, the second pressure conduction structure 152 remains in a closed state, and the water in the mineralization chamber 121 cannot flow to the second buffer chamber 122 through the second pressure conduction structure 152.

[0044] Specifically, the first pressure-conducting structure 151 is a one-way valve, and the second pressure-conducting structure 152 is also a one-way valve. The one-way valve can be a duckbill valve, which has a simple structure, no impact on water quality, and low application cost. Duckbill valves are typically made of rubber and are shaped like a duck's bill. When there is no internal pressure, the duckbill outlet closes due to its own elasticity; as the internal pressure gradually increases, the duckbill outlet gradually widens, allowing liquid to flow out. When the liquid flows forward, the pressure pushes the duckbill-shaped rubber valve open, allowing the liquid to pass smoothly; if the liquid stops or flows in reverse, the valve's elasticity will automatically close it, preventing backflow.

[0045] Of course, check valves can also be magnetic check valves, ball check valves, spring check valves, etc. The structure of a ball check valve mainly consists of a valve body, valve seat, and valve ball. The valve ball is generally a silicone or rubber ball, and can be hollow or solid. When the fluid pressure on the inlet side exceeds the opening pressure, the valve ball moves away from the valve seat, allowing fluid flow; when the inlet pressure does not exceed the opening pressure or there is back pressure, the valve ball, with the help of back pressure or spring force, tightly adheres to the valve seat, effectively preventing reverse flow of fluid. A spring check valve consists of a valve body, valve disc, and spring, with the valve disc connected to the spring. When water enters through inlet 131, the water pressure overcomes the spring force, opening the valve disc and allowing water to flow smoothly; when the water flow stops or reverses, the spring force pushes the valve disc back to its original position, tightly adhering to the valve seat and preventing backflow.

[0046] Specifically, a first non-mineralized filter element may be provided in the first buffer chamber 111; the first non-mineralized filter element may be a pre-filter composite element, such as PP cotton + activated carbon filter element, etc. Alternatively, no filter element may be provided in the first buffer chamber 111.

[0047] Specifically, such as Figure 3 As shown, a second non-mineralized filter element 310 may be installed in the second buffer chamber 122. The second non-mineralized filter element 310 may be a post-composite filter element, and may be one or at least two of nanofiltration, activated carbon, and zeolite filters. Nanofiltration can be used to remove hardness, heavy metal ions, organic matter, microorganisms, and other impurities from water, reducing the total dissolved solids content and improving water quality. Alternatively, no filter element may be installed in the second buffer chamber 122.

[0048] In specific applications, an antagonistic filter element can also be installed in the first buffer chamber 111. This antagonistic filter element is used to inhibit the release of minerals from the mineralization filter element 200 into the water. When the first buffer chamber 111 is located upstream of the mineralization chamber 121, an antagonistic filter element is installed in the first buffer chamber 111. This antagonistic filter element can dissolve antagonistic substances into the water, which are used to inhibit the release of minerals from the mineralization filter element 200 into the water. The water first flows through the antagonistic filter element and then through the mineralization filter element 200. The antagonistic substances dissolved by the antagonistic filter element come into contact with the mineralization chamber 121 along with the water, thereby inhibiting excessive dissolution of minerals in the mineralization chamber 121 and reducing the mineral content in the mineralized water during immersion.

[0049] In specific applications, the mineralizing filter element 200 can be a zinc mineralizing filter element or a copper mineralizing filter element. The antagonistic filter element can be an alkaline filter element. The water flow first contacts the alkaline filter element and then contacts the mineralization chamber 121. The alkaline substances dissolved in the water by the alkaline filter element can come into contact with the mineralization chamber 121 with the water flow, thereby inhibiting the excessive dissolution of zinc and copper elements in the mineralization chamber 121 to a certain extent. Optionally, the antagonistic filter element can include at least one of the following materials: calcite, aragonite, magnesite, dolomite, etc.

[0050] This application also provides a mineral spring mineralization device, including a main body and the aforementioned filter element device 100, wherein the filter element device 100 is connected to the main body.

[0051] In specific applications, the mineral water mineralization equipment can also be equipped with a pure water supply pipeline. The pure water supply pipeline can be connected in parallel with the filter element device 100. The pure water supply pipeline and the outlet pipeline of the filter element device 100 can be connected to a mixing regulating valve to further regulate the concentration of mineralized water in the outlet device.

[0052] In this application, the terms "embodiment" and "implementation" mean that a specific feature, element, 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 locations throughout 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, elements, 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.

[0053] 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 filter cartridge device, characterized in that, include: The device body has a shell, and a first space and a second space are arranged axially inside the shell. A first buffer cavity is arranged in the first space; a mineralization cavity and a second buffer cavity are arranged in the second space, and a mineralization filter element is arranged in the mineralization cavity; the mineralization cavity and the second buffer cavity are arranged radially inside and outside the shell, or the second buffer cavity and the mineralization cavity are arranged radially inside and outside the shell. The first buffer chamber and the mineralization chamber are provided with a first pressure conducting structure that can be connected under water pressure; A second pressure conduction structure that can be connected under water pressure is provided between the mineralization cavity and the second buffer cavity.

2. The filter element device according to claim 1, characterized in that, The main body of the device is provided with a series water passage, and along the water flow direction of the series water passage, the mineralization chamber is located between the second buffer chamber and the first buffer chamber; Alternatively, the second buffer cavity can be connected in parallel with the first buffer cavity and then connected in series with the mineralization cavity.

3. The filter element device according to claim 1, characterized in that, A transverse partition is provided inside the housing, and the outer periphery of the transverse partition abuts against the inner peripheral wall of the housing. The second space is located on one side of the transverse partition, and the first space is located on the other side of the transverse partition. The second space is provided with a cylindrical isolation cylinder, and the mineralization cavity and the second buffer cavity are respectively located on the inner and outer sides of the isolation cylinder, or the second buffer cavity and the mineralization cavity are respectively located on the inner and outer sides of the isolation cylinder.

4. The filter element device according to claim 3, characterized in that, The transverse partition is provided with a first installation channel connecting the first buffer chamber and the mineralization chamber, and the first pressure conduction structure is provided in the first installation channel.

5. The filter element device according to claim 3, characterized in that, The isolation cylinder is connected to an end cap, the mineralization filter element is disposed in the mineralization cavity inside or outside the isolation cylinder, the end cap is provided with a second installation channel communicating with the mineralization cavity and the second buffer cavity, and the second pressure conduction structure is disposed in the second installation channel; Alternatively, the first pressure conduction structure may be disposed within the isolation cylinder.

6. The filter element device according to any one of claims 1 to 5, characterized in that, The first pressure-conducting structure is a check valve; and / or, the second pressure-conducting structure is a check valve.

7. The filter element device according to any one of claims 1 to 5, characterized in that, The main body of the device has an inlet and an outlet. The inlet is connected to one of the second buffer chamber and the first buffer chamber, and the outlet is connected to the other of the second buffer chamber and the first buffer chamber.

8. The filter element device according to any one of claims 1 to 5, characterized in that, The second buffer chamber is equipped with a pre-filter; the first buffer chamber is equipped with a post-filter.

9. The filter element device according to any one of claims 1 to 5, characterized in that, An antagonistic filter element is provided in the first buffer chamber, which is used to inhibit the release of minerals into the water by the mineralization filter element.

10. A mineral spring mineralization device, characterized in that, It includes a main body and a filter element device as described in any one of claims 1 to 9, wherein the filter element device is connected to the main body.

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