Filter element and water purifying device

Abstract

The utility model relates to a filter element and a water purifying device. The filter element comprises a shell, a first filter pipe and a second filter pipe; the first filter pipe and the second filter pipe are both arranged in the shell, a plurality of filter material areas are arranged on the periphery of the first filter pipe, each filter material area is provided with a water passing hole corresponding to the first filter pipe, the second filter pipe is rotatably arranged in the first filter pipe, and the water passing hole is communicated with the first filter pipe. A plurality of groups of water inlet runners are arranged on the periphery of the second filter pipe in the circumferential direction of the second filter pipe; the second filter pipe is provided with a plurality of preset positions, and when the second filter pipe is located at the preset positions, one set of water inlet flow channels coincide with the water passing holes, so that water flows into the second filter pipe after passing through the filter material area. The filter element can output corresponding mineralized drinking water according to requirements of users.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of water purification, and particularly relates to a filter element and a water purification device. BACKGROUND

[0002] The water purifier is a device for producing purified water, and is a water treatment device for deep filtration and purification of water quality with municipal tap water as raw water. The purified water formed after the current water purifier filters does not contain trace elements and is not suitable for long-term drinking. Based on this, mineralization filter elements begin to appear. The mineralization filter element can release trace elements, but the content of the trace elements released by the mineralization filter element in the related technology cannot be well controlled, so that the trace elements output by the water purifier can only be fixed and cannot be adjusted according to actual needs. SUMMARY

[0003] Therefore, the utility model provides a filter element and a water purification device. The filter element can output corresponding mineralized drinking water according to the needs of users.

[0004] The utility model provides the following technical scheme:

[0005] A filter element comprises a shell, a first filter pipe and a second filter pipe.

[0006] The first filter pipe and the second filter pipe are arranged in the shell, the first filter pipe is provided with a plurality of filter material areas around the first filter pipe, each filter material area is provided with a water passing hole corresponding to the first filter pipe, the second filter pipe is rotatably arranged in the first filter pipe, and a plurality of water inlet flow channels are arranged around the second filter pipe along the circumference of the second filter pipe.

[0007] The second filter pipe has a plurality of preset positions, when the second filter pipe is located at the preset position, one group of water inlet flow channels is coincided with the water passing hole, so that water flows into the second filter pipe after passing through the filter material area.

[0008] In some embodiments, each group of water inlet flow channels comprises at least one water inlet hole arranged at intervals in a first direction and a water outlet hole communicated with a plurality of water inlet holes, the size of the water passing hole is matched with the size of the water inlet hole, and the number of each group of water inlet holes is different.

[0009] In some embodiments, further comprising a plurality of baffles.

[0010] The plurality of baffles are arranged at intervals around the first filter pipe, and a plurality of filter material areas are formed between adjacent two baffles.

[0011] In some embodiments, the areas of the plurality of filter material areas gradually increase.

[0012] In some embodiments, further comprising a first cover plate and a second cover plate.

[0013] The first cover plate is arranged at one end of the first filter pipe, and the second cover plate is arranged at the other end of the first filter pipe.

[0014] In some embodiments, two ends of the first filter pipe are arranged between the first cover plate and the second cover plate; the second cover plate has a through hole penetrating through the second cover plate, wherein one end of the second filter pipe is away from the first cover plate, the second filter pipe partially penetrates through the through hole and extends to outside the second cover plate, and the second filter pipe portion abuts against the second cover plate.

[0015] In some embodiments, the bottom of the shell is provided with a water supply hole, and each of the baffles has a gap with the inner side wall of the shell, and a plurality of the gaps form flow channels; water flows into the shell through the water supply hole, and enters the second filter pipe through the water inlet hole and the water outlet hole.

[0016] In some embodiments, the second filter pipe is coaxially arranged with the first filter pipe, and one end of the second filter pipe extends from the axial direction of the first filter pipe to outside the shell.

[0017] One end of the second filter pipe extends from the shell to outside the shell, and the inside of the second filter pipe is arranged as a cavity, and water flows out of the cavity to outside the shell.

[0018] In some embodiments, the water purifying device further comprises a driving member.

[0019] The driving member is connected with the second filter pipe, and the driving member is used to drive the second filter pipe to rotate in the first filter pipe, so that the water inlet hole is matched with each group of water inlet flow channels.

[0020] The utility model also provides a kind of water purifying device, comprising:

[0021] Body, and the filter core of the filter core.

[0022] The filter core comprises a shell, the first filter pipe and the second filter pipe are arranged in the shell, a plurality of filter material areas are arranged on the outer periphery of the first filter pipe, at least one water passing hole is arranged in each filter material area, and water flow can be mineralized after flowing through the filter material areas; the second filter pipe is arranged in the first filter pipe, a plurality of groups of water inlet flow channels are arranged on the second filter pipe, and the plurality of groups of water inlet flow channels are different in position and number; the second filter pipe has a plurality of preset positions, each preset position corresponds to a setting position and number, when the second filter pipe is located at a preset position, one group of water inlet flow channels matches the position and number of the water passing hole of the corresponding filter material area, so that water flow enters the water inlet flow channel through the water passing hole after flowing through the filter material area, and then enters the second filter pipe and is discharged through the water inlet flow channel, therefore, when the second filter pipe is located at different preset positions, the filter core can discharge a plurality of mineralized drinking water containing different trace elements, so that the user can select the corresponding preset position according to the current demand, so that the filter core can discharge water according to the current selection of the user, and the selection diversity of the filter core is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0024] Figure 1 The overall structure schematic diagram of the filter core provided by the embodiments of the present application is shown.

[0025] Figure 2 The cross-sectional view of the filter core provided by the embodiments of the present application is shown.

[0026] Figure 3 The cooperation structure schematic diagram of the first filter pipe and the second filter pipe provided by the embodiments of the present application is shown.

[0027] Figure 4 The cooperation structure schematic diagram of the first filter pipe and the baffle provided by the embodiments of the present application is shown.

[0028] Figure 5 The expanded structure schematic diagram of the second filter pipe provided by the embodiments of the present application is shown.

[0029] Figure 6 The structure schematic diagram of the filter core provided by the embodiments of the present application is shown.

[0030] Figure 7 The cooperation structure schematic diagram of the filter core and the driving member provided by the embodiments of the present application is shown.

[0031] Figure 8 A structure schematic diagram of the water purifying device is provided.

[0032] Mark explanation:

[0033] 100 - filter core; 10 - shell; 11 - water supply hole; 20 - first filter pipe; 21 - filter material area; 22 - water passing hole; 30 - second filter pipe; 31 - water inlet flow channel; 311 - water inlet hole; 312 - water outlet hole; 40 - baffle; 50 - first cover plate; 51 - second cover plate; 60 - driving member; 200 - water purifying device; 210 - body. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] The terms "first", "second", etc. in the specification and claims of the present application and the above drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device.

[0036] In this document, the term "embodiment" or "implementation" means that the specific features, structures or characteristics described in connection with the embodiment or implementation can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0037] The water purifier is a device for producing purified water, which is a water treatment device for deep filtration and purification of water quality with municipal tap water as raw water. The purified water formed after the current water purifier is filtered does not contain trace elements, which is not suitable for long-term drinking. Based on this, mineralization filter cores begin to appear, which can release trace elements, but the content of trace elements released by the mineralization filter core in the related technology cannot be well controlled, so that the trace elements output by the water purifier can only be fixed and cannot be adjusted according to actual needs.

[0038] In view of this, the present embodiment provides a filter core 100 and a water purification device 200. The filter core 100 can output corresponding mineralized drinking water according to the needs of the user.

[0039] Please refer to Figure 1 and Figure 2 , a filter core 100, comprising: a shell 10, a first filter tube 20 and a second filter tube 30;

[0040] The first filter tube 20 and the second filter tube 30 are both arranged in the shell 10, the outer periphery of the first filter tube 20 is provided with a plurality of filter material areas 21, each of the filter material areas 21 is provided with a water passing hole 22 corresponding to the first filter tube 20, and the second filter tube 30 is rotationally arranged in the first filter tube 20, and the outer periphery of the second filter tube 30 is provided with a plurality of groups of water inlet flow channels 31 along the circumferential direction of the second filter tube 30.

[0041] The second filter tube 30 has a plurality of preset positions, when the second filter tube 30 is located at the preset position, a group of the water inlet flow channels 31 coincides with the water passing hole 22, so that the water flow flows into the second filter tube 30 after passing through the filter material area 21.

[0042] The above-mentioned filter core 100 comprises a shell 10, a first filter tube 20 and a second filter tube 30, both of which are arranged in the shell 10, a plurality of filter material areas 21 are arranged on the outer periphery of the first filter tube 20, and at least one water passing hole 22 is arranged corresponding to each filter material area 21, so that the water flow can be mineralized after the filter material flows through the filter material area 21 into the shell 10; the second filter tube 30 is arranged in the first filter tube 20, and a plurality of groups of water inlet flow channels 31 are arranged on the second filter tube 30, and the arrangement of the plurality of groups of water inlet flow channels 31 is different, that is, the position and number are different; the second filter tube 30 has a plurality of preset positions, each of which corresponds to a setting position and number, when the second filter tube 30 is located at the preset position, a group of water inlet flow channels 31 matches the position and number of the water passing hole 22 of the corresponding filter material area 21, so that the water flow flows through the filter material area 21, enters the water inlet flow channel 31 through the water passing hole 22, and then enters the second filter tube 30 and is discharged through the water inlet flow channel 31. Therefore, when the second filter tube 30 is located at different preset positions, the filter core 100 can discharge a plurality of mineralized drinking water containing different trace elements, so that the user can select the corresponding preset position according to the current needs, so that the filter core 100 can output water according to the current selection of the user, thereby improving the selection diversity of the filter core 100.

[0043] It can be understood that the filter element 100 includes a shell 10, the first filter tube 20 and the second filter tube 30 are arranged in the shell 10, a plurality of filter material areas 21 are arranged on the outer periphery of the first filter tube 20, and each filter material area 21 is correspondingly provided with a water passing hole 22, so that the water flow can flow to the water passing hole 22 after flowing through the filter material area 21, and the second filter tube 30 is rotatably arranged in the first filter tube 20, and a plurality of groups of water inlet channels 31 are arranged on the second filter tube 30, each group of water inlet channels is matched with the water passing hole 22, and thus when the second filter tube 30 rotates in the first filter tube 20, one group of water inlet channels 31 of the second filter tube 30 is matched with the water passing hole 22 of the corresponding filter material area 21, so that the water flow can flow through the corresponding filter material area 21 and then flow to the water passing hole 22, and then enter the second filter tube 30 through the water inlet channel 31 and flow out through the second filter tube 30.

[0044] It can be understood that the second filter tube 30 can have N preset positions, and the number of preset positions can be arranged according to the number of filter material areas 21, for example, when there is one filter material area 21, only one preset position can be arranged, and the position of the water inlet channel 31 is matched with the position of the water inlet hole 311, so that the filter element 100 can only output drinking water containing one kind of mineral substance.

[0045] When there are two filter material areas 21, three preset positions, i.e. a first preset position, a second preset position and a third preset position, can be arranged, and the three preset positions correspond to the first filter material area 21, the second filter material area 21, the first filter material area 21 and the second filter material area 21 respectively; and the number of water inlet channels 31 is the same as the number of preset positions, which is three, so that when the second filter tube 30 is located at the first preset position, the water flow can flow through the first filter material area 21 and flow out of the filter element 100 through the water inlet channel 31 of the first preset position; when the second filter tube 30 is located at the second preset position, the water flow can flow through the second filter material area 21 and flow out of the filter element 100 through the water inlet channel 31 of the second preset position; and when the second filter tube 30 is located at the third preset position, the water flow can flow through the first filter material area 21 and the second filter material area 21 and flow out of the filter element 100 through the water inlet channel 31 of the third preset position, so that multiple modes of water output can be realized according to the user's needs.

[0046] Please refer to Figure 2 , Figure 3 and Figure 5 In some embodiments, each group of water inlet channels 31 includes at least one water inlet hole 311 arranged at intervals in a first direction and a water outlet hole 312 communicating with a plurality of water inlet holes 311, the water passing hole 22 is matched with the size of the water inlet hole 311, and the number of each group of water inlet holes 311 is different.

[0047] Understandably, each set of inlet channels 31 includes at least one along a first direction (e.g., Figure 5 The water inlet holes 311 (shown in the top-to-bottom direction) are spaced apart, meaning one or more water inlet holes 311 can be provided. The size and position of the multiple water inlet holes 311 are adapted to the water passage holes 22. When the second filter tube 30 is in the preset position, the water passage holes 22 can be adapted to the water inlet holes 311 so that the water flow can enter the second filter tube 30 after flowing through the filter media area 21, through the water passage holes 22 and the water inlet holes 311. The multiple water inlet holes 311 are all connected to the water outlet holes 312. Therefore, when the water flows into the second filter tube 30, it can be discharged into the filter element 100 through the water outlet holes 312. This realizes the water inlet and outlet of the second filter element 100.

[0048] For example, the first filter tube 20 has three filter media areas 21, and the second filter tube 30 has seven sets of water inlet channels 31. The first set of water inlet channels 31 has only one channel, corresponding to the first filter media area 21; the second set of water inlet channels 31 has only one channel, corresponding to the second filter media area 21; the third set of water inlet channels 31 has only one channel, corresponding to the third filter media area 21; and the fourth set of water inlet channels 31 has two channels. 31, corresponding to the first filter media area 21 and the second filter media area 21; the fifth group of water inlet channels 31 has two water inlet channels 31, corresponding to the second filter media area 21 and the third filter media area 21; the sixth group of water inlet channels 31 has two water inlet channels 31, corresponding to the first filter media area 21 and the third filter media area 21; the seventh group of water inlet channels 31 has three water inlet channels 31, corresponding to the first filter media area 21, the second filter media area 21, and the third filter media area 21 (the arrangement method can be found in the...). Figure 5 ).

[0049] The seven sets of water inlet channels 31 mentioned above can be set to seven preset positions, which correspond to the first preset position, the second preset position, the third preset position, the fourth preset position, the fifth preset position, the sixth preset position, and the seventh preset position in sequence. Therefore, when the second filter tube 30 is located in the first preset position, the water passage hole 22 on the first filter tube 20 is adapted to the first set of water inlet channels 31 on the second filter tube 30. In this way, the water can flow through the first filter material area 21 and then flow to the water passage hole 22 corresponding to the first filter material area 21. After that, it flows through the first set of water inlet channels 31 and is discharged to the outside of the filter element 100 through the water inlet channels 31. In this way, the water only passes through the first filter material area 21 to mineralize the water. The other preset positions are the same. You only need to rotate the second filter element 100 to the preset position.

[0050] Please see Figure 4 In some embodiments, it also includes: a plurality of baffles 40;

[0051] The plurality of baffles 40 are arranged at intervals around the outer periphery of the first filter tube 20, and a plurality of filter material areas 21 are formed between adjacent two baffles 40.

[0052] It can be understood that the plurality of baffles 40 are arranged at intervals around the outer periphery of the filter tube, so that the filter material areas 21 for mounting the filter material are formed between adjacent two baffles 40, and a plurality of filter materials can be mounted in the filter material areas 21, so that the filter core 100 has a plurality of filter materials, and the filter core 100 can produce drinking water with a plurality of minerals, thereby improving the diversity of use of the filter core 100.

[0053] Specifically, in the embodiments of the utility model, two baffles 40 are arranged, and the two baffles 40 form three filter material areas 21, and the three filter material areas 21 can be respectively provided with, for example, the first filter material area 21 is provided with brucite, the second filter material area 21 is provided with sepiolite, and the third filter core 100 is provided with silicate ore; in this way, when the water flow flows through different filter material areas 21, the water flow can be mineralized by different minerals, so as to realize the mineralization of the water flow.

[0054] Please refer to Figure 4 In some embodiments, the areas of the plurality of filter material areas 21 gradually increase.

[0055] It can be understood that the plurality of filter material areas 21 in some technical solutions can be provided with one filter material, but the area of each filter material area 21 can be provided with different areas. When the area of the filter material area 21 increases and the size of the water inlet hole 311 remains unchanged, the time for the water flow to be mineralized can be relatively long. In this way, when the water flow flows through a larger filter material area, the contact time of the water flow with the filter material is longer, so that the water flow can be mineralized for a longer time, so that the water flow discharged from the filter material areas 21 with different areas contains different amounts of minerals, so that the same filter core 100 can produce water flow containing different amounts of minerals, and the same can also improve the diversity of user selection. For example, the filter material area 21 in the filter core 100 can be provided with calcium or zinc and other trace elements, and such trace elements are often lacking in children during growth. Therefore, when children drink, the filter material area 21 with a larger amount of content can be selected for water discharge. Adults can select normal content for water discharge, or when adults lack trace elements at a certain time, the filter material area 21 with a larger amount of content can also be selected for water discharge, so that the body's trace elements can be supplemented, thereby realizing healthy drinking water.

[0056] Please refer to Figure 6 In some embodiments, the utility model further comprises a first cover plate 50 and a second cover plate 51.

[0057] The first cover plate 50 is arranged at one end of the first filter tube 20, and the second cover plate 51 is arranged at the other end of the first filter tube 20, and gaps are formed between the first cover plate 50, the second cover plate 51 and the shell 10.

[0058] It can be understood that the first cover plate 50 and the second cover plate 51 are also included, wherein the first cover plate 50 is arranged at one end of the first filter tube 20, and the second cover plate 51 is arranged at the other end of the second filter tube 30, that is, the first cover plate 50 and the second cover plate 51 are arranged at opposite ends of the filter tube respectively, and the diameters of the first cover plate 50 and the second cover plate 51 are greater than the diameter of the first filter tube 20, so that the water flow can flow into the filter material area 21 after flowing through the first cover plate 50 or the second cover plate 51; and gaps are arranged between the first cover plate 50 and the second cover plate 51 and the shell 10, so that the water flow can flow into the filter material area 21 through the gaps between the first cover plate 50 or the second cover plate 51 and the shell 10, and the water flow flows through the filter material area 21 and then enters the second filter tube 30 through the water inlet hole 311 and the water outlet hole 312, and then is discharged, so that the water inlet of the filter element 100, the treatment of the water flow and the water outlet of the filter element 100 can be realized.

[0059] Please refer to Figure 6 and Figure 7 In some embodiments, the two ends of the first filter tube 20 are arranged between the first cover plate 50 and the second cover plate 51; the second cover plate 51 has a through hole penetrating through the second cover plate 51, wherein one end of the second filter tube 30 is away from the first cover plate 50, the second filter tube 30 partially penetrates through the through hole and extends out of the second cover plate 51, and the part of the second filter tube 30 abuts against the second cover plate 51.

[0060] It can be understood that the two ends of the first filter tube 20 are arranged between the first cover plate 50 and the second cover plate 51, the first filter tube 20 can abut against the first cover plate 50 and the second cover plate 51, or the first filter tube 20 is connected with the first cover plate 50 and the second cover plate 51, and a through hole penetrating through the second cover plate 51 is arranged on the second cover plate 51, the second filter tube 30 penetrates through the through hole on the second cover plate 51 and extends out of the second cover plate 51, and the diameter of the part of the second filter tube 30 extending out of the second cover plate 51 is smaller than the diameter of the main body of the second filter tube 30, so that the second cover plate 51 can also limit the movement of the second filter tube 30, and since the part extending out of the second cover plate 51 is located in the lower half of the second cover plate 51, the second filter tube 30 can also be limited to displace by the second cover plate 51. In this way, the rotation of the second filter tube 30 can be facilitated.

[0061] Please refer to Figure 7In some embodiments, the bottom of the shell 10 is provided with a water supply hole 11, and each of the baffles 40 has a gap with the inner side wall of the shell 10, and a plurality of gaps form a flow channel. The water flow enters the shell 10 through the water supply hole 11, and then enters the second filter tube 30 through the water inlet hole 311 and the water passing hole 22.

[0062] It can be understood that the bottom of the shell 10 is provided with a water supply hole 11, so that the water flow can enter the shell 10 (i.e. the filter core 100) through the water supply hole 11. After entering the shell 10, the water flow can enter the filter material area 21 through the gap between the first cover plate 50 or the second cover plate 51 and the shell 10. After flowing through the filter material area 21, if the second filter tube 30 is located at a predetermined position and the water passing hole 22 is in communication with the water inlet hole 311, the water flow can enter the water inlet hole 311 through the water passing hole 22, and then flow into the cavity of the second filter tube 30, and then be discharged from the water outlet hole on the second filter tube 30 to the second filter tube 30, so as to realize the water inlet and outlet of the filter core 100.

[0063] Please refer to Figure 7 In some embodiments, the second filter tube 30 is coaxially arranged with the first filter tube 20, and one end of the second filter tube 30 extends from the axis of the first filter tube 20 to the outside of the shell 10.

[0064] One end of the second filter tube 30 extends from the shell 10 to the outside of the shell 10, and the inside of the second filter tube 30 is provided as a cavity. The water flow is discharged from the cavity to the outside of the shell 10.

[0065] It can be understood that the first filter tube 20 and the second filter tube 30 are coaxially arranged, so that the water passing hole 22 on the first filter tube 20 can better cooperate with the water inlet hole 311 on the second filter tube 30, and the second filter tube 30 can rotate more smoothly in the first filter tube 20, avoiding friction between the second filter tube 30 and the first filter tube 20 during rotation, and improving the stability of the second filter tube 30 during rotation.

[0066] It can be understood that the second filter tube 30 extends from the first filter tube 20 to the outside of the first filter tube 20, so as to better drive the second filter tube 30 to rotate in the first filter tube 20. The inside of the second filter tube 30 is provided as a cavity, so that the water flow can flow from the water inlet hole 311 to the cavity, and the cavity is in communication with the water outlet hole 312. Thus, when the water flow flows into the cavity, it can be discharged from the cavity through the water outlet hole 312, thereby realizing the water discharge of the filter core 100.

[0067] Please refer to Figure 7 In some embodiments, the drive member 60 is further included.

[0068] The driving member 60 is connected with the second filter tube 30, and the driving member 60 is used to drive the second filter tube 30 to rotate in the first filter tube 20, so that the water inlet hole 311 is matched with each group of water inlet flow channels 31.

[0069] It can be understood that the driving member 60 is connected with the second filter tube 30, so that the driving member 60 can drive the second filter tube 30 to rotate in the first filter tube 20, the driving member 60 can improve the rotation efficiency of the second filter tube 30 in the first filter tube 20, and a plurality of preset positions can be arranged on the driving member 60, so that the driving member 60 can drive the second filter tube 30 to rotate to the preset position in the first filter tube 20 and match the second filter tube 30 with the first filter tube 20, so that the positioning accuracy of the second filter tube 30 in the first filter tube 20 can be improved, so that the water inlet of the second filter tube 30 can be better matched with the water inlet hole 22 on the first filter tube 20, so that the water flow can flow through the water inlet hole 22 and enter the second filter tube 30, so that the mineralized water flow is discharged.

[0070] Please refer to Figure 8 The utility model also provides a kind of water purifying device 200, comprising:

[0071] Body 210, and the filter core 100 described above.

[0072] The above-mentioned water purifying device 200 includes a body 210 and a filter core 100, so the filter core 100 in the above-mentioned water purifying device 200 is also provided with a first filter tube 20 and a second filter tube 30 in the shell 10, the first filter tube 20 and the second filter tube 30 are both arranged in the shell 10, a plurality of filter material areas 21 are arranged on the outer periphery of the first filter tube 20, and at least one water passing hole 22 is arranged corresponding to each filter material area 21, and the water flow can be mineralized after the filter material flows through the filter material area 21 into the shell 10;The second filter tube 30 is arranged in the first filter tube 20, and a plurality of groups of water inlet flow channels 31 are arranged on the second filter tube 30, and the plurality of groups of water inlet flow channels 31 are different in arrangement, i.e. the position and the number are different;The second filter tube 30 has a plurality of preset positions, each preset position corresponds to a position and a number, and when the second filter tube 30 is located at the preset position, one group of water inlet flow channels 31 matches the position and the number of the water passing hole 22 of the corresponding filter material area 21, so that the water flow flows through the filter material area 21, enters the water inlet flow channel 31 through the water passing hole 22, and then enters the second filter tube 30 and is discharged through the water inlet flow channel 31, so that when the second filter tube 30 is located at different preset positions, the filter core 100 can discharge a plurality of mineralized drinking water containing different trace elements, so that the user can select the corresponding preset position according to the current demand, so that the filter core 100 can discharge water according to the current selection of the user, and the selection diversity of the filter core 100 is improved.

[0073] In the present application, the phrase "embodiment" or "embodiments" means that the specific features, structures, or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it necessarily mutually exclusive or alternative to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application can be combined with other embodiments. In addition, it should be understood that the features, structures or characteristics described in the embodiments of the present application can be combined with each other without contradiction, to form another embodiment which does not deviate from the spirit and scope of the technical scheme of the present application.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical scheme of the present application and are not limiting. Although the present application has been described in detail with reference to the above preferred embodiments, it should be understood by those skilled in the art that the technical scheme of the present application can be modified or replaced by equivalent without departing from the spirit and scope of the technical scheme of the present application.

Claims

1. A filter cartridge, characterized by, The filter cartridge comprises: a housing, a first filter tube and a second filter tube; the first filter tube and the second filter tube are arranged in the housing, the first filter tube is provided with a plurality of filter material areas, each filter material area is provided with a water passing hole, the second filter tube is arranged in the first filter tube, and the second filter tube is provided with a plurality of groups of water inlet flow channels along the circumferential direction of the second filter tube; the second filter tube has a plurality of preset positions, when the second filter tube is located at the preset position, one group of the water inlet flow channels coincides with the water passing hole, so that water flows into the second filter tube after passing through the filter material area.

2. The filter cartridge of claim 1, wherein, Each group of the water inlet flow channels comprises at least one water inlet hole arranged in a first direction and a water outlet hole communicated with a plurality of water inlet holes, the water passing hole is matched with the water inlet hole in size, and the number of each group of the water inlet holes is different.

3. The filter cartridge of claim 2, wherein, Further comprising: a plurality of baffles; the plurality of baffles are arranged at the outer periphery of the first filter tube, and a plurality of filter material areas are formed between adjacent baffles.

4. The filter cartridge of claim 3, wherein, The areas of the plurality of filter material areas increase in sequence.

5. The filter cartridge of claim 4, wherein, Further comprising: a first cover plate and a second cover plate; the first cover plate is arranged at one end of the first filter tube, the second cover plate is arranged at the other end of the first filter tube, and gaps are formed between the first cover plate, the second cover plate and the housing.

6. The filter cartridge of claim 5, wherein, the two ends of the first filter tube are arranged between the first cover plate and the second cover plate; the second cover plate has a through hole penetrating through the second cover plate, one end of the second filter tube is away from the first cover plate, the second filter tube partially penetrates through the through hole and extends to the outside of the second cover plate, and the second filter tube partially abuts against the second cover plate.

7. The filter cartridge of claim 6, wherein, the bottom of the housing is provided with a water supply hole, gaps are formed between each baffle and the inner side wall of the housing, a plurality of flow channels are formed, water flows into the housing through the water supply hole, and then flows into the second filter tube through the water inlet hole and the water passing hole.

8. The filter cartridge of claim 7, wherein, the second filter tube is coaxially arranged with the first filter tube, one end of the second filter tube extends to the outside of the housing from the axial direction of the first filter tube; one end of the second filter tube extends to the outside of the housing from the housing, the inside of the second filter tube is provided with a cavity, and water flows out of the cavity to the outside of the housing.

9. The filter cartridge of claim 8, wherein, Further comprising: a driving member; the driving member is connected with the second filter tube, and the driving member is used to drive the second filter tube to rotate in the first filter tube, so that the water inlet hole is matched with each group of the water inlet flow channels.

10. A water purifying apparatus characterized by comprising: The filter cartridge comprises: a body, and the filter cartridge as claimed in any one of claims 1 to 9.

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