Filter element, filter cartridge and mineral spring water purifier

Abstract

The utility model is suitable for the technical field of mineralized water purification, and discloses a filter element, a filter cartridge and a mineral spring water purifier. The filter element comprises a filter element main body; the filter element main body at least comprises a first mineralization filter body and a second mineralization filter body; and along a set direction, a part of the first mineralization filter body is overlapped with a part of the second mineralization filter body. The filter cartridge comprises the filter element. The mineral spring water purifier comprises the filter element or the filter cartridge. Due to the fact that the partially overlapped part exists, under the first condition, water flow can independently flow through the non-overlapped part of the first mineralization filter body, and first mineralization water is obtained. And under the second condition, the water flow independently flows through the non-overlapped part of the second mineralization filter body to obtain second mineralization water. And under the third condition, the water flow sequentially flows through the overlapped part of the first mineralization filter body and the second mineralization filter body to obtain third mineralization water, three different mineralization drinking water can be obtained through one filter element main body, and the high-end requirement that people select different mineralization water according to individual preferences is met.

Description

Technical Field

[0001] The utility model relates to the technical field of mineralized water purification, in particular to a filter element, a filter cartridge and a mineral water purifier. Background Art

[0002] As people's living standards improve, the demand for healthy water is getting higher and higher.

[0003] At present, household drinking water equipment generally adopts water purification equipment, which generally filters various impurities in the water body through pre-filter cartridges and RO membrane filter cartridges to obtain pure water. However, the pre-filter cartridges and RO membrane filter cartridges in the water purification equipment not only filter harmful substances, but also filter beneficial minerals in the water. In order to obtain drinking water containing trace elements necessary for the human body, the prior art also uses mineralized filter cartridges to mineralize and filter drinking water in order to add (dissolve) trace elements into the water body. However, the mineralized filter cartridges in the prior art are generally a single mineralized filter material combined with a single water path flowing through the filter cartridge, and can only output a single mineralized water. Users cannot choose different mineralized water according to their individual needs, and the user experience is poor. Utility Model Content

[0004] In order to solve the problem of mineral content in drinking water, the utility model provides a filter element, a filter cartridge and a mineral water purifier, which are conducive to meeting people's high-end needs of choosing different mineralized water according to individual needs, and the user experience is better.

[0005] The utility model provides a filter element, comprising a filter element body, wherein the filter element body at least comprises a first mineralized filter body and a second mineralized filter body;

[0006] Along a set direction, a portion of the first mineralized filter body overlaps a portion of the second mineralized filter body;

[0007] The filter element body is disposed in a filter cartridge having a first waterway channel, a second waterway channel and a third waterway channel;

[0008] The first water channel flows through the first mineralized filter alone;

[0009] The second water channel flows through the overlapping portion of the first mineralized filter body and the second mineralized filter body;

[0010] The third water channel flows through the second mineralized filter body alone.

[0011] Optionally, the first mineralized filter body has a first part and a second part that are integrally connected, and the second mineralized filter body has a third part and a fourth part that are integrally connected; in the projection of the filter element body along a set direction, the projection of the second part and the projection of the third part form an overlapping projection, the projection formed by the first part is located on one side of the overlapping projection, and the projection formed by the fourth part is located on the other side of the overlapping projection.

[0012] Optionally, the first mineralized filter body is in a cylindrical shape with openings at both ends, and has an inner cavity; the second mineralized filter body is in a cylindrical shape, and part of the second mineralized filter body is axially inserted into part of the inner cavity of the first mineralized filter body.

[0013] Optionally, the first mineralized filter body is provided with a stepped hole along the axial direction, the second mineralized filter body is stepped, and the second mineralized filter body is inserted into the stepped hole; the filter element also includes an isolating member arranged in the stepped hole, and the isolating member is arranged between the radial direction of the second mineralized filter body and the radial direction of the first mineralized filter body.

[0014] Optionally, the longitudinal cross-section of the first mineralized filter body is in a "concave" shape, the longitudinal cross-section of the second mineralized filter body is in a "convex" shape, the second mineralized filter body has an inserting portion, the first mineralized filter body has an inserting groove for inserting the inserting portion, the inserting portion is axially inserted into the inserting groove, the first mineralized filter body is provided with a first center hole along the axial direction, and the second mineralized filter body is provided with a second center hole along the axial direction.

[0015] Optionally, the first mineralized filter body has a mineralized filter material layer capable of dissolving minerals, and the second mineralized filter body has a promoting filter material layer for promoting the dissolution of minerals from the mineralized filter layer material;

[0016] Alternatively, the first mineralized filter body has a mineralized filter material layer that can dissolve minerals, and the second mineralized filter body has an anti-antagonistic filter material layer that can inhibit the mineralized filter material layer from dissolving minerals;

[0017] Alternatively, the first mineralized filter body has a mineralized filter material layer for adjusting the pH value of water quality, and the second mineralized filter body has a neutralizing filter material layer for neutralizing the pH value of water quality.

[0018] Optionally, the first mineralized filter body and the second mineralized filter body have a substrate, and the substrate is a carbon rod filter element, a ceramic filter element or a carbon fiber; the mineralized filter material layer, the promoting filter material layer, the anti-antagonistic filter material layer or the neutralizing filter material layer is arranged on the substrate.

[0019] The utility model also provides a filter cartridge, comprising a cartridge shell and the above-mentioned filter element, wherein the filter element is arranged in the cartridge shell.

[0020] Optionally, the cartridge shell is provided with a first waterway channel, a second waterway channel and a third waterway channel;

[0021] The first water channel flows through the first mineralized filter alone;

[0022] The second water channel flows through the overlapping parts of the first mineralized filter body and the second mineralized filter body in sequence;

[0023] The third water channel flows through the second mineralized filter body alone.

[0024] The utility model also provides a mineral water purifier, which includes the filter element mentioned above, or the mineral water purifier includes the filter cartridge mentioned above.

[0025] The utility model provides a filter element, a filter cartridge, and a mineral water purifier, wherein the filter element is a mineralized filter element, wherein part of the first mineralized filter body overlaps part of the second mineralized filter body. Due to the existence of the partial overlapping part, in the first case, the water flow can flow through the non-overlapping part of the first mineralized filter body alone to obtain the first mineralized water. In the second case, the water flow can also flow through the non-overlapping part of the second mineralized filter body alone to obtain the second mineralized water. In the third case, the water flow can flow through the overlapping part of the first mineralized filter body and the second mineralized filter body to obtain the third mineralized water. Through a filter element body and three parallel water flows, three different mineralized drinking water can be obtained, which is conducive to meeting people's high-end needs to choose different mineralized water according to individual needs, and the user experience is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A cross-sectional view of a filter element of the first structural form provided by an embodiment of the utility model;

[0027] Figure 2 A cross-sectional view of a filter element of a second structural form provided by an embodiment of the utility model;

[0028] Figure 3 A cross-sectional view of a filter element of a third structural form provided by an embodiment of the utility model;

[0029] Figure 4 A cross-sectional view of a filter element of a fourth structural form provided by an embodiment of the utility model;

[0030] Figure 5 A schematic diagram of a water path of a filter cartridge provided in an embodiment of the utility model;

[0031] Figure 6 A three-dimensional cross-sectional schematic diagram of a filter cartridge provided by an embodiment of the utility model;

[0032] Figure 7A water pH value variation trend diagram corresponding to the filter element provided in the embodiment of the utility model (the first mineralized filter body is a strongly alkaline filter body, and the second mineralized filter body is a weakly alkaline filter body);

[0033] Figure 8 The H2CO3-HCO3 provided by the embodiment of the utility model - -CO3 2- Dissolution diagram in water of different pH values. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0035] It should be noted that the terms “setting” and “connecting” should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.

[0036] In addition, if there are terms such as "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientation or positional relationship in the embodiments of the present invention, they are based on the orientation or positional relationship or the conventional placement state or use state shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure, feature, device or element referred to must have a specific orientation or positional relationship, nor must it be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0037] The various specific technical features and embodiments described in the specific implementation methods can be combined in any suitable manner unless there is any contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in the present utility model will not be described separately.

[0038] The utility model provides a filter element, such as Figures 1 to 4 as well as Figure 6As shown, the filter element body includes a filter element body, which includes at least a first mineralized filter body 110 and a second mineralized filter body 120; along a set direction, part of the first mineralized filter body 110 overlaps part of the second mineralized filter body 120, and the filter element body is arranged in a filter cartridge having a first water channel 241, a second water channel 242 and a third water channel 243; the first water channel 241 flows through the first mineralized filter body 110 alone; the second water channel 242 flows through the overlapping part of the first mineralized filter body 110 and the second mineralized filter body 120; the third water channel 243 flows through the second mineralized filter body 120 alone. Since there is a partial overlap between the two filter bodies, in the first case, the first water flow S1 of the first water channel 241 can flow through the non-overlapping part of the first mineralized filter body 110 alone to obtain mineralized water (also called mineral water) with the first kind of dissolved matter. In the second case, the second water flow S2 of the second water channel 242 can flow through the overlapping portion of the first mineralized filter 110 and the second mineralized filter 120 to obtain mineralized water with two kinds of dissolved substances. In the third case, the third water flow S3 of the third water channel 243 can also flow through the non-overlapping portion of the second mineralized filter 120 to obtain mineralized water with a third dissolved substance. Figure 1 The three groups of arrows shown in the figure can represent the flow directions of the three water flows, namely the first water flow S1, the second water flow S2 and the third water flow S3), and three different mineralized drinking water can be obtained, so that the water bodies of different mineralized drinking water contain different mineral components that are beneficial to human health, which is conducive to meeting users' high-end needs for drinking water that is beneficial to health.

[0039] In specific applications, for example, the first mineralized filter 110 may be a strongly alkaline filter, and the second mineralized filter 120 may be a weakly alkaline filter. In this embodiment, the strongly alkaline filter and the weakly alkaline filter may be relative concepts, and do not specifically refer to alkalinity being higher or lower than a set value. Different alkaline water (pH values ​​between 7 and 9) have different tastes, and users can choose according to their needs to meet different personalized needs. Moreover, different waterways can be switched according to the size of the required water outlet flow rate. When the water outlet setting is a larger flow rate and a higher pH value, it can be preferentially switched to the waterway flowing through the first mineralized filter 110. When the water outlet setting is a smaller flow rate and a lower pH value, it can be preferentially switched to the waterway that only flows through the second mineralized filter 120, so as to better meet different application scenarios.

[0040] Moreover, the inventors have found that the strong alkaline filter has an inhibitory effect on the dissolution of alkaline mineralization in the weak alkaline filter. The structural design of the filter body can significantly improve the overall service life of the mineralized filter. Figure 7This is a trend diagram of the pH value change when the water body (pure water) flows through the first mineralized filter material 110 and the second mineralized filter material 120. It can be seen that the water flows through the strong alkaline material (strong alkaline ore) of the first mineralized filter material 110 (strong alkali) to form a strong alkaline flow-through water with a relatively high pH value. In the early stage, it can meet the requirements of the alkaline water quality demand range. However, due to the rapid dissolution of the strong alkaline material, it is difficult to meet the requirements of the alkaline water quality demand range in the later stage. The weakly alkaline material (weakly alkaline ore) in the second mineralized filter material 120 (weakly alkaline) forms weakly alkaline flow water, and its initial pH value is relatively low. This is because the weakly alkaline material itself dissolves slowly and has poor water alkalization ability, so the pH value of the water body is relatively low in the initial stage. However, because the weakly alkaline material on the surface of the second mineralized filter material 120 is gradually dissolved, the pores inside the weakly alkaline material gradually become interconnected from closed, and water can pass not only from the surface of the material but also from the inside of the material, which increases the contact area between water molecules and the weakly alkaline material and increases the dissolution rate. Therefore, the pH value can meet the alkaline water quality demand range in the later stage. In the early stage, the porosity of weak alkaline ore is relatively low. Under the action of water flow, the internal porosity gradually increases, thereby enhancing its alkalization ability. As the porosity reaches a certain level, it enters a stable dissolution stage, and at this time the dissolution ability of strong alkaline ore decreases. The combination of the two overcomes the problem of low life of single alkaline filter material, and can well meet the design purpose of longevity of mineralized filter elements. Moreover, within the entire life range, the pH value of the outlet water can be kept in the range of 7.0 to 9.0. In this embodiment, the first mineralized filter material 110 and the second mineralized filter material 120 are used in combination and staggered. When the filter element is in a non-water production period (immersion) state, the first mineralized filter material 110 and the second mineralized filter material 120 are immersed in water at the same time. When the concentration of alkaline ions dissolved by the strong alkaline ore in the first mineralized filter material 110 is high, the dissolution of weak alkaline minerals in the second mineralized filter material 120 is inhibited, so that the weak alkaline minerals in the second mineralized filter material 120 can play a major role in the middle and late stages, and cooperate with the first mineralized filter material 110 whose alkalinity has been reduced. In the early stage of the life of the filter element, when the filter element stops making water (the water stops flowing), the first mineralized filter material 110 preferentially dissolves alkaline substances when the filter element body is immersed, thereby inhibiting the dissolution of alkaline substances in the second mineralized filter material 120, so that the second mineralized filter material 120 can maintain its alkalization ability for the water body. As the filter element is used, the alkalizing ability of the first mineralized filter material 110 decreases, and its inhibitory effect on the second mineralized filter material 120 is gradually alleviated, so that the second mineralized filter material 120 also gradually and slowly releases alkaline substances. The first mineralized filter material 110 and the second mineralized filter material 120 can work synergistically, so that the filter element can still alkalize the water body well in the middle and late stages of its life, so that the pH value of the water body remains within the standard range, providing users with long-lasting alkaline mineralized water that meets the pH standard range, which can meet users' high-end needs for drinking water. The filter element has a long service life, and users do not need to frequently replace the filter element, and the user experience is good.In specific applications, a suitable parallel water path can be selected according to the water flow rate. In the case of normal water discharge, the water flows through the first mineralized filter 110 and the second mineralized filter 120 in sequence or passes through the first mineralized filter 120 alone to obtain drinking water with a suitable pH value. In the case of low-flow water discharge, the water flows only through the second mineralized filter 120 alone to obtain drinking water with a suitable pH value.

[0041] In a specific application, for example, the first mineralized filter 110 can be a zinc-containing filter, that is, the first mineralized filter 110 can be a zinc mineralized filter. Zinc is one of the essential trace elements for the human body. According to the provisions of the "National Food Safety Standard for Drinking Natural Mineral Water" (GB8537-2018), the zinc content in mineral water is greater than or equal to 0.2 mg / L. Zinc is beneficial to promoting human growth and development and enhancing immunity, and is more suitable for young people. The second mineralized filter 120 can be a weakly alkaline filter, which can make the pH value of the water body greater than 7 to output weakly alkaline water. Weakly alkaline water helps to regulate the pH value in the human body and maintain the normal physiological functions of the body, and is more suitable for middle-aged and elderly people. By partially overlapping part of the first mineralized filter 110 and part of the second mineralized filter 120 in the direction of water flow, three types of mineralized water with different mineral types (whose tastes are also somewhat different) can be provided to users, zinc-containing zinc-rich mineral water, weak alkaline water and zinc-containing weak alkaline water. Users can choose the corresponding mineralized water according to their needs and taste preferences, and only one mineralized filter element combined with three parallel water paths is required, which meets the user's high-end personalized needs and provides a better user experience.

[0042] Moreover, the first mineralized filter 110 can dissolve zinc in the water body, and the second mineralized filter 120 can be a weakly alkaline filter. When the water flows normally through the first mineralized filter 110 and the second mineralized filter 120, the zinc element can be dissolved normally. Since the water at the filter element cannot be emptied when the water flow stops, the first mineralized filter 110 and the second mineralized filter 120 are in an immersion state, and the retained water at the filter element is the immersion water body. When the filter element is in an immersion state, if the immersion water body is conventional pure water (water filtered by an RO membrane), the amount of zinc element dissolved within a certain period of time will exceed the national safety limit, that is, the zinc concentration of the immersion water body does not meet the drinking standard, which is not conducive to human health. In this embodiment, by setting the second mineralized filter 120 as an alkaline filter, the immersion water body can be made weakly alkaline, thereby inhibiting the excessive dissolution of zinc elements in the first mineralized filter 110, so that the zinc concentration in the immersion water body also meets the national standard. The mineralized filter material in the first mineralized filter body 110 is smithsonite as an example. The dissolution reaction of smithsonite in water is: ZnCO3=Zn 2+ +CO3 2- . Zn 2+ The saturated solubility of Zn in pure water can reach 6.0 mg / L, far exceeding the national standard limit of 1.0 mg / L.2+ and CO3 2- is precipitated synchronously, CO3 2- The concentration of Zn can be controlled at a low level. 2+ The saturated precipitation concentration is controlled at a low level; - -CO3 2- Equilibrium diagram in water ( Figure 8 ) It can be seen that different alkaline water pH values ​​affect the zinc concentration in the soaking water. When the pH value is around 8.3, CO3 2- The concentration of Zn 2+ The concentration is also at the lowest level, theoretically calculated to be 0.36 mg / L, which meets the standard limit. By setting the alkaline second mineralized filter 120, the pH value of the water body in which the filter element is soaked can be adjusted to about 8.3, which can prevent the zinc element in the water body from exceeding the set range under soaking conditions. The mechanism of inhibiting the dissolution of zinc element by soaking in alkaline water can not only make the zinc element dissolve normally when flowing (water flows normally through the filter element), but also overcome the technical difficulty that the zinc-containing filter body is prone to exceeding the standard when soaking (water stops flowing).

[0043] Specifically, Figures 1 to 4 As shown, the first mineralized filter 110 has a first portion 111 and a second portion 112 that are integrally connected. Figure 1 and Figure 2 , along the axial direction, the first part 111 is the upper half of the first mineralized filter body 110, and the second part 112 is the lower half of the first mineralized filter body 110. The second mineralized filter body 120 has a third part 123 and a fourth part 124 connected in an integral manner; along the axial direction, the third part 123 is the upper half of the second mineralized filter body 120, and the fourth part 124 is the lower half of the second mineralized filter body 120. The second part 112 is sleeved outside the third part 123, and the fourth part 124 protrudes from the bottom of the first mineralized filter body 110. In the projection of the filter element body along the set direction, Figure 1 , Figure 2 , Figure 3 Taking the projection along the radial direction as an example, the projection of the second part 112 and the projection of the third part 123 form an overlapping projection, the projection formed by the first part 111 is located on one side of the overlapping projection, and the projection formed by the fourth part 124 is located on the other side of the overlapping projection.

[0044] like Figure 1 and Figure 2 As shown, the first mineralized filter 110 is in the shape of a cylinder with two ends open and has an inner cavity, and the second mineralized filter 120 is in the shape of a cylinder (such as Figure 1 as shown) or columnar (as Figure 2As shown in the figure, the second mineralized filter body 120 is partially inserted into the inner cavity of the first mineralized filter body 110 along the axial direction. The second mineralized filter body 120 and the first mineralized filter body 110 can be inserted at the same height and axially staggered, so that the second mineralized filter body 120 and the first mineralized filter body 110 form a filter element structure arranged inside and outside. The second mineralized filter body 120 is partially exposed outside the first mineralized filter body 110, and the second mineralized filter body 120 is not inserted into the inner cavity of the first mineralized filter body 110, that is, the first mineralized filter body 110 and the second mineralized filter body 120 are both staggered. The first mineralized filter body 110 and the second mineralized filter body 120 are separated and arranged radially, which is convenient for assembly. During production, they can be flexibly assembled according to needs.

[0045] In a specific application, the first mineralized filter 110 and the second mineralized filter 120 are separately provided, and the first mineralized filter 110 and the second mineralized filter 120 are respectively formed and then assembled to form a mineralized filter element. The mineralized filter element can be used in conjunction with a conventional filter element (such as an RO membrane filter element), and the mineralized filter element can be arranged downstream of the RO membrane filter element. The pure water formed by the RO membrane filter element passes through the mineralized filter element, and the mineralized filter element can dissolve an appropriate amount of minerals in the water body, and by switching / selecting the water path, mineral water with different tastes or containing different minerals can be formed, which is beneficial to the health of users.

[0046] In specific applications, the first water flow S1, the second water flow S2 and the third water flow S3 can be controlled separately, and one, two or three water flows can flow through the filter element separately or simultaneously. The first water flow S1, the second water flow S2 and the third water flow S3 can correspond to three water inlet channels, and the outlet water can be combined with the outlet water pipe. Figure 6 As shown, in a specific application, the filter cartridge can be provided with three filter cartridge water inlets 201, and the three filter cartridge water inlets 201 correspond to three water channels (the first water channel 241, the second water channel 242 and the third water channel 243). The three filter cartridge water inlets 201 can be independently controlled by control valves, and the outlets can share the filter cartridge water outlet 202. The first mineralized filter body 110 is cylindrical with openings at both ends, and the second mineralized filter body 120 is cylindrical with openings at both ends. When the first mineralized filter body 110 and the second mineralized filter body 120 are staggered up and down along the axial direction. The first water flow, the second water flow and the third water flow all flow along the radial direction of the filter element body to the central channel inside the filter element body and then flow out from the water outlet pipeline.

[0047] Specifically, Figure 4As shown, the first mineralized filter body 110 may be provided with a stepped hole along the axial direction, the second mineralized filter body 120 is stepped, the second mineralized filter body 120 is integrally inserted into the stepped hole, the second mineralized filter body 120 is flush with the first mineralized filter body 110 at both ends, and the filter element further includes an isolator 194 disposed in the stepped hole, and the isolator 194 is disposed between the radial direction of the second mineralized filter body 120 and the radial direction of the first mineralized filter body 110. The isolator 194 may be an annular water-proof pipe. The longitudinal cross-section of the second mineralized filter body 120 may be in the shape of a "convex" character, the first mineralized filter body 110 and the second mineralized filter body 120 are plugged and matched to form a filter element body with a cylindrical shape, and each water channel may be disposed along the axial direction.

[0048] In specific applications, such as Figure 3 and Figure 4 As shown, the longitudinal section of the first mineralized filter body 110 is in an inverted "concave" shape, and the longitudinal section of the second mineralized filter body 120 is in a "convex" shape. The second mineralized filter body 120 has a plug-in portion, and the first mineralized filter body 110 has a plug-in slot for inserting the plug-in portion. The plug-in portion is plugged into the plug-in slot along the axial direction, and the plug-in portion and the plug-in slot side wall form a radially overlapping portion. The first mineralized filter body 110 is provided with a first center hole 1101 along the axial direction, and the second mineralized filter body 120 is provided with a second center hole 1201 along the axial direction. The first center hole 1101 and the second center hole 1201 are coaxially arranged to form a water outlet channel. The first center hole 1101 and the second center hole 1201 can be connected to the water outlet pipeline. The water inlet side is located on the outside of the filter element body, and the water inlets of the three-way water inlet flow (three pipelines) can be arranged on the outside of the filter element body.

[0049] In a specific application, the first mineralized filter 110 may be an acidic filter material. The second mineralized filter 120 is a mineralized filter material containing calcium or / and magnesium. The first mineralized filter 110 includes a weakly acidic ore, and the second mineralized filter 120 includes an ore rich in calcium and magnesium. The acidic substance dissolved from the first mineralized filter 110 can promote the dissolution of calcium and magnesium elements in the second mineralized filter 120.

[0050] Alternatively, the first mineralized filter 110 is an alkaline filter material (weakly alkaline), and the second mineralized filter 120 is a metasilicic acid filter material. By allowing the water to flow through the first mineralized filter 110 and the second mineralized filter 120 in sequence, the dissolution of metasilicic acid can be promoted, so that the content of metasilicic acid reaches a set standard. The water flowing through the first mineralized filter 110 or the second mineralized filter 120 alone can also obtain the corresponding mineralized water quality to meet different user needs.

[0051] In a specific application, the first mineralized filter 110 includes at least one of brucite and sepiolite; the second mineralized filter 120 includes at least one of calcite and brucite.

[0052] Alternatively, the first mineralized filter 110 includes at least one of smithsonite and malachite; and the second mineralized filter 120 includes at least one of brucite, sepiolite, and calcite.

[0053] Alternatively, the first mineralized filter 110 includes at least one of hornblende, magnesium ore, and dolomite; and the second mineralized filter 120 includes at least one of brucite, sepiolite, and calcite.

[0054] Alternatively, the first mineralized filter 110 includes at least one of hornblende, magnesium ore, and dolomite; and the second mineralized filter 120 includes at least one of iron ore and silicate ore.

[0055] Specifically, the first mineralized filter body 110 may have a mineralized filter material layer (which may be a metasilicic acid filter material) that can dissolve minerals, and the second mineralized filter body 120 may have a promoting filter material layer (which may be an alkaline filter material) for promoting the dissolution of minerals in the mineralized filter material layer, so as to increase the concentration of metasilicic acid formed by the metasilicic acid filter material in a scenario with a large outflow of water.

[0056] Alternatively, the first mineralized filter body 110 has a mineralized filter material layer that can dissolve minerals, and the second mineralized filter body 120 has an anti-antagonistic filter material layer that can inhibit the dissolution of minerals in the mineralized filter material layer. The mineralized filter material layer may be a zinc-containing filter material, and the anti-antagonistic filter material layer may be an alkaline filter material, or the mineralized filter material layer may be a weak alkaline filter material (for example, a filter material containing calcite, stalactite, etc.), and the anti-antagonistic filter material layer may be a strong alkaline filter material (for example, a filter material containing brucite and sepiolite). In some scenarios, when the filter element is in an immersed state, the dissolution of certain minerals may exceed the set standard, and if it is drunk directly, it is also not good for health. By setting the anti-antagonistic filter material layer, the anti-antagonistic filter material layer can inhibit the dissolution of minerals in the mineralized filter material during immersion, thereby preventing the mineral content from exceeding the corresponding safety standard.

[0057] Alternatively, the first mineralized filter body 110 has a mineralized filter material layer (which may be an alkaline filter material) for adjusting the pH value of water quality, and the second mineralized filter body 120 has a neutralizing filter material layer (which may be an acidic filter material) for neutralizing the pH value of water quality.

[0058] Alternatively, the first mineralized filter 110 has a first mineralized filter material layer that can dissolve a first mineral, and the second mineralized filter 120 has a second mineralized filter material layer that can dissolve a second mineral. The first mineralized filter material layer and the second mineralized filter material layer are used in combination and do not affect each other, and are used to provide different minerals.

[0059] Alternatively, the first mineralized filter body 110 has a first mineralized filter material layer that can dissolve a first mineral, and the second mineralized filter body 120 can also be replaced with a non-mineralized filter material, that is, a non-mineralized filter material such as a pure carbon rod or a ceramic filter body is used in conjunction with the first mineralized filter body 110. The non-mineralized filter material is used to adsorb larger impurities and remove odors. The same filter element can meet three different drinking water needs: mineralized water, pure water, and mineralized water + pure water.

[0060] Specifically, the first mineralized filter body 110 and the second mineralized filter body 120 may have a substrate, and the substrate may be a carbon rod filter element, a ceramic filter element or a carbon fiber; the mineralized filter material layer, the promoting filter material layer, the anti-antagonistic filter material layer or the neutralizing filter material layer is arranged on the surface of the substrate in a structural form similar to the carburized layer, and the layer thickness can be set according to actual conditions.

[0061] The utility model also provides a filter cartridge, such as Figure 6 As shown, it includes a cartridge housing 210 and the above-mentioned filter element, which is arranged in the cartridge housing 210. The cartridge housing 210 is provided with a filter cartridge water inlet 201 and a filter cartridge water outlet 202, Figure 5 As shown, the filter cartridge water inlet 201 is used to connect to the filter cartridge water inlet pipeline 310 , and the filter cartridge water outlet 202 is used to connect to the filter cartridge water outlet pipeline 320 .

[0062] Specifically, Figure 6 As shown, a first end cap 220 and a second end cap 230 are disposed at both ends of the filter element body along the axial direction, and the first mineralized filter body 110 and the second mineralized filter body 120 can be disposed between the first end cap 220 and the second end cap 230. The shapes of the first end cap 220 and the second end cap 230 can match the shape of the filter element body.

[0063] like Figure 6 In the filter cartridge shown in the figure, a three-way parallel water channel structure may be provided in the cartridge shell 210, that is, three parallel water channels may be provided in the cartridge shell 210, corresponding to the upper, middle and lower positions of the filter element body respectively. Figure 5 and Figure 6 As shown, the first water channel 241 is used for the first water flow S1 to flow through the first mineralized filter 110 alone, the second water channel 242 is used for the second water flow S2 to flow through the first mineralized filter 110 and the second mineralized filter 120 in sequence, and the third water channel 243 is used for the third water flow S3 to flow through the second mineralized filter 120 alone. The three parallel water channels can be arranged along the inner wall of the shell 210.

[0064] Specifically, Figure 5 and Figure 6 As shown, the water flow direction is Figure 6 Taking the arrow direction as an example, the waterway diagram is as follows Figure 5As shown, the upper water flows radially through the first mineralized filter 110 to obtain the first mineralized water body (A); the lower water flows radially through the second mineralized filter 120 to obtain the second mineralized water body (B). The middle water flows radially through the first mineralized filter 110 and the second mineralized filter 120, and the first mineralized filter 110 and the second mineralized filter 120 can dissolve different minerals respectively to obtain a combined mineralized water body (A+B).

[0065] The utility model also provides a mineral water purifier, which includes the above-mentioned filter element, or the mineral water purifier includes the above-mentioned filter cartridge. Along the set direction, part of the first mineralized filter body 110 overlaps part of the second mineralized filter body 120. Since there are some overlapping parts of the filter bodies, in the first case, the water flow can flow through the non-overlapping part of the first mineralized filter body 110 alone to obtain the first mineralized water. In the second case, the water flow can also flow through the non-overlapping part of the second mineralized filter body 120 alone to obtain the second mineralized water. In the third case, the water flow can flow through the overlapping parts of the first mineralized filter body 110 and the second mineralized filter body 120 in turn to obtain the third mineralized water. Through a filter element main body and three parallel water flows, three different mineralized drinking water can be obtained without using multiple filter cartridges, which can meet the different usage needs of users.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter element, characterized in that: It comprises a filter element body, wherein the filter element body comprises at least a first mineralized filter body and a second mineralized filter body; Along a set direction, a portion of the first mineralized filter body overlaps a portion of the second mineralized filter body; The filter element body is disposed in a filter cartridge having a first waterway channel, a second waterway channel and a third waterway channel; The first water channel flows through the first mineralized filter alone; The second water channel flows through the overlapping portion of the first mineralized filter body and the second mineralized filter body; The third water channel flows through the second mineralized filter body alone.

2. The filter element according to claim 1, characterized in that: The first mineralized filter body has a first part and a second part that are integrally connected, and the second mineralized filter body has a third part and a fourth part that are integrally connected; in the projection of the filter element body along a set direction, the projection of the second part and the projection of the third part form an overlapping projection, the projection formed by the first part is located on one side of the overlapping projection, and the projection formed by the fourth part is located on the other side of the overlapping projection.

3. The filter element according to claim 1, characterized in that: The first mineralized filter body is in the shape of a cylinder with openings at both ends and has an inner cavity. The second mineralized filter body is in the shape of a cylinder, and part of the second mineralized filter body is axially inserted into part of the inner cavity of the first mineralized filter body.

4. The filter element according to claim 1, characterized in that The first mineralized filter body is provided with a stepped hole along the axial direction, the second mineralized filter body is stepped, and the second mineralized filter body is inserted into the stepped hole; the filter element also includes an isolating member arranged in the stepped hole, and the isolating member is arranged between the radial direction of the second mineralized filter body and the radial direction of the first mineralized filter body.

5. The filter element according to claim 1, characterized in that: The longitudinal cross-section of the first mineralized filter body is in a "concave" shape, and the longitudinal cross-section of the second mineralized filter body is in a "convex" shape. The second mineralized filter body has an inserting portion, and the first mineralized filter body has an inserting groove for inserting the inserting portion, and the inserting portion is axially inserted into the inserting groove. The first mineralized filter body is provided with a first center hole along the axial direction, and the second mineralized filter body is provided with a second center hole along the axial direction.

6. The filter element according to any one of claims 1 to 5, characterized in that: The first mineralized filter body has a mineralized filter material layer capable of dissolving minerals, and the second mineralized filter body has a promoting filter material layer for promoting the dissolution of minerals; Alternatively, the first mineralized filter body has a mineralized filter material layer that can dissolve minerals, and the second mineralized filter body has an anti-antagonistic filter material layer that can inhibit the mineralized filter material layer from dissolving minerals; Alternatively, the first mineralized filter body has a mineralized filter material layer for adjusting the pH value of water quality, and the second mineralized filter body has a neutralizing filter material layer for neutralizing the pH value of water quality.

7. The filter element according to claim 6, characterized in that The first mineralized filter body and the second mineralized filter body have a substrate, which is a carbon rod filter element, a ceramic filter element or a carbon fiber; the mineralized filter material layer, the promoting filter material layer, the anti-antagonistic filter material layer or the neutralizing filter material layer is arranged on the substrate.

8. A filter cartridge, characterized in that: The invention comprises a cartridge shell and a filter element as claimed in any one of claims 1 to 7, wherein the filter element is arranged in the cartridge shell.

9. The filter cartridge according to claim 8, characterized in that The cylinder shell is provided with a first water channel, a second water channel and a third water channel; The first water channel flows through the first mineralized filter alone; The second water channel flows through the overlapping parts of the first mineralized filter body and the second mineralized filter body in sequence; The third water channel flows through the second mineralized filter body alone.

10. A mineral water purifier, characterized in that: The mineral water purifier includes the filter element as described in any one of claims 1 to 7, or the mineral water purifier includes the filter cartridge as described in claim 8 or 9.

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