Filter mechanism with press-type filter element assembly capable of being quickly disassembled and assembled

Abstract

The utility model relates to a filter mechanism with a press-type filter element assembly capable of being quickly disassembled and assembled, the filter mechanism comprises an outer shell, the filter element assembly and an elastic clamping assembly, the filter element assembly is arranged in an accommodating cavity of the outer shell and is detachably connected with the accommodating cavity through the elastic clamping assembly; a pressing part is arranged at one end of the filter element assembly and extends out of the containing cavity, a first elastic part is arranged between the end, away from the pressing part, of the filter element assembly and the outer shell, a clamping groove is formed in the side wall of the filter element assembly, the elastic clamping assembly can stretch into the clamping groove, and a movable part is movably arranged in the clamping groove; under the action of external pressing force and / or the elastic force of the first elastic piece, the filter element assembly can move relative to the accommodating cavity. According to the filtering mechanism disclosed by the utility model, whether the filter element assembly is mounted or dismounted, only the pressing part of the filter element assembly needs to be pressed towards the direction of the first elastic piece, other parts do not need to be dismounted, and the operation is simple and convenient.

Description

Technical Field

[0001] This utility model relates to the technical field of filtration mechanisms, and in particular to a filtration mechanism with a press-type quick-release filter element assembly, which can be applied to products such as shower equipment, faucets, and water purifiers. Background Technology

[0002] With industrial development and urbanization, water pollution is becoming increasingly serious. Tap water often contains impurities, heavy metal ions, organic gases, residual chlorine, and other harmful substances. To reduce the harm of these substances, some faucets and shower equipment are equipped with filter cartridges. However, these cartridges become contaminated after a period of use. To prevent secondary pollution, the filter cartridges need to be cleaned or replaced regularly. For example, Chinese utility model patent CN201832727U discloses a filter shower head. A water purification device (filter cartridge) is movably mounted in the water inlet of the shower head handle via a plug nut with a through-flow water channel. By applying force to unscrew the plug from the plug nut, the water purification device can be removed from the shower head handle for cleaning or replacement. For example, Chinese utility model patent CN220572866U discloses a faucet water purifier that can be installed quickly. It achieves the fixed installation of the filter tube and valve tube by inserting the elastic pin of the frame into the insertion hole on the plug. Furthermore, by placing the filter element assembly for purifying and filtering tap water on the support ring on the inner wall of the filter tube, the faucet water purifier makes it easy to disassemble and replace the filter element assembly.

[0003] However, when assembling or disassembling the filter element of the aforementioned shower head or faucet water purifier, other parts need to be assembled or disassembled in order to complete the assembly or disassembly of the filter element. The steps are relatively cumbersome, inconvenient to operate, and time-consuming and laborious.

[0004] Therefore, it is necessary to provide a technical solution to address the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a filter mechanism with a press-type quick-release filter element assembly, which can solve the technical problem that the disassembly and assembly steps of the filter element assembly in the prior art are relatively cumbersome.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A filter mechanism with a press-type quick-release filter element assembly includes a housing, a filter element assembly, and an elastic snap-fit ​​assembly. The housing has an inlet and an outlet, and a receiving cavity is provided inside the housing. The filter element assembly is disposed in the receiving cavity and is detachably connected to the receiving cavity via the elastic snap-fit ​​assembly. One end of the filter element assembly has a pressing part that extends to the outside of the receiving cavity. A first elastic element is provided between the end of the filter element assembly away from the pressing part and the housing. A snap-fit ​​groove is provided on the side wall of the filter element assembly, and the elastic snap-fit ​​assembly can extend into the snap-fit ​​groove. A movable element is movably disposed in the snap-fit ​​groove. Under the action of external pressing force and / or the elastic force of the first elastic element, the filter element assembly can move relative to the receiving cavity. During the movement of the filter element assembly, the elastic snap-fit ​​assembly can extend and retract under the action of the movable element, and the movable element can move in the snap-fit ​​groove under the action of the elastic snap-fit ​​assembly.

[0008] Furthermore, at least two mounting slots are provided around the outer periphery of the snap-fit ​​groove in the accommodating cavity, and each mounting slot is equipped with one of the elastic snap-fit ​​components.

[0009] Furthermore, the elastic snap-fit ​​assembly includes a second elastic member and a snap-fit ​​block connected to the end of the second elastic member near the filter element assembly. The snap-fit ​​block can extend into the snap-fit ​​groove. The end of the snap-fit ​​block near the filter element assembly is provided with a first inclined surface, and the end of the movable member away from the filter element assembly is provided with a second inclined surface.

[0010] Furthermore, along the direction from the pressing part to the first elastic member, the distance between the point on the first inclined surface and the central axis of the filter element assembly gradually decreases, while the distance between the point on the second inclined surface and the central axis of the filter element assembly gradually increases.

[0011] Furthermore, the filter element assembly includes a filter element cartridge, the inside of which is provided with a filter media cavity, one end of which is connected to the water inlet and the other end of which is connected to the water outlet.

[0012] Furthermore, one end of the filter cartridge is provided with a first opening, and the other end is provided with multiple first through holes. A filter cover is detachably connected to the first opening, and multiple second through holes are provided on the filter cover.

[0013] Furthermore, the filter element assembly also includes a mounting base with an installation cavity inside. The end of the filter element tube near the pressing part is detachably disposed in the installation cavity and communicates with the installation cavity. A through groove is provided on the mounting base or between the mounting base and the filter element tube. The installation cavity communicates with the water outlet through the through groove. A snap-fit ​​groove is provided on the side wall of the mounting base, and the pressing part is provided at the end of the mounting base away from the first elastic member.

[0014] Furthermore, the filter assembly also includes an aromatherapy component, which is detachably mounted in the mounting cavity.

[0015] Furthermore, the filter cartridge assembly also includes a movable cylinder, which is disposed in the receiving cavity. The end of the movable cylinder away from the pressing part is connected to the water inlet, and the end near the pressing part is provided with a second opening. The end of the filter cartridge away from the pressing part is detachably disposed in the movable cylinder through the second opening. A first elastic element is disposed between the end of the movable cylinder away from the pressing part and the outer shell. The side wall of the mounting base away from the pressing part abuts against the end of the movable cylinder near the pressing part. Under the action of external pressing force and / or the elastic force of the first elastic element, the movable cylinder can move relative to the receiving cavity.

[0016] The beneficial effects of this utility model are:

[0017] (1) The filter mechanism of this utility model is made possible by the clever cooperation of the elastic snap-fit ​​component, the movable part, and the snap-fit ​​groove, as well as the cooperation of the external pressing force and the elastic force of the first elastic component. Whether installing or removing the filter element assembly, it is only necessary to press the pressing part of the filter element assembly in the direction of the first elastic component. There is no need to install or remove other parts. The operation steps are simple and quick. Moreover, during the installation or removal of the filter element assembly, there is no need to remove the filter mechanism. It can be well applied to various types of shower equipment, faucets or water purifiers and other products.

[0018] (2) By setting up a movable cylinder, the filtration mechanism can be used normally regardless of whether a filter cartridge is installed, thus meeting the different usage needs of users. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the filter mechanism in Examples 1 and 2 applied to a shower head.

[0020] Figure 2 This is a partial structural exploded view of the filtration mechanism in Examples 1 and 2 applied to a shower head.

[0021] Figure 3 This is a cross-sectional view of the filter mechanism in Example 1 applied to a shower head.

[0022] Figure 4 for Figure 3 A magnified structural diagram of point A in the middle.

[0023] Figure 5 This is a schematic diagram showing the exploded structure of the filter mechanism in Example 1 applied to a shower head.

[0024] Figures 6(a)-6(c) This is a schematic diagram of the filter element assembly disassembly process in Example 1.

[0025] Figure 7 This is a cross-sectional view of the filter mechanism in Example 2 applied to a shower head.

[0026] Figure 8 This is a cross-sectional view of the filtration mechanism in Example 2 applied to a shower head without a filter cartridge.

[0027] Figure 9 This is a schematic diagram showing the exploded structure of the filter mechanism in Example 2 applied to a shower head. Detailed Implementation

[0028] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0029] Example 1

[0030] Taking the application of this press-type quick-release filter assembly in a shower head as an example, combined with the attached... Figure 1 -6. This embodiment describes the structure of a filter mechanism for a press-type quick-release filter cartridge assembly.

[0031] like Figure 1 As shown in Figure 6, the filter mechanism of the pressable quick-release filter element assembly in this embodiment includes a housing 1, a filter element assembly 2, and an elastic snap-fit ​​assembly 3. The housing 1 is provided with an inlet 11 and an outlet 12. A receiving cavity 10 is provided inside the housing 1. The filter element assembly 2 is disposed in the receiving cavity 10 and is detachably connected to the receiving cavity 10 through the elastic snap-fit ​​assembly 3. One end of the filter element assembly 2 is provided with a pressing part 22, which extends to the outside of the receiving cavity 10. A first elastic element is provided between the end of the filter element assembly away from the pressing part 22 and the housing 1. 4. The side wall of the filter element assembly 2 is provided with a snap-fit ​​groove 25, into which the elastic snap-fit ​​assembly 3 can extend. A movable member 5 is movably disposed in the snap-fit ​​groove 25. Under the action of external pressing pressure F1 and / or the elastic force of the first elastic member 4, the filter element assembly 2 can move relative to the receiving cavity 10. During the movement of the filter element assembly 2, the elastic snap-fit ​​assembly 3 and the movable member 5 can come into contact with each other, and the elastic snap-fit ​​assembly 3 can extend and retract under the action of the movable member 5. The movable member 5 can move in the snap-fit ​​groove 25 under the action of the elastic snap-fit ​​assembly 3. The first elastic member 4 is a spring. Specifically, when the filtration mechanism in this embodiment is applied to a shower head, a connector 13 is installed in the inlet 11, and a water outlet panel 14 is installed in the outlet 12. A first through hole 141 for the filter element assembly 2 to pass through is provided in the middle of the water outlet panel 14, so that the filter element assembly 2 can be inserted and installed in the shower head through the first through hole 141. The pressing part 22 extends to the outside of the receiving cavity 10 through the first through hole 141, so that the user can apply pressing pressure on the pressing part. A plurality of water outlet holes 143 are provided on the outer periphery of the first through hole 141 on the water outlet panel 14. The connector 13 is a universal connector, which facilitates the adjustment of the shower head angle.

[0032] In actual use, when it is necessary to disassemble the filter element assembly 2 in the filter mechanism, press the pressing part 22 by hand, as shown in Figure 6(a), that is, apply pressing force F1 to the pressing part 22. Under the action of pressing force F1, the filter element assembly 2 moves towards the first elastic member 4, and the movable member 5 moves along with it. During the movement, the first elastic member 4 is compressed, and the movable member 5 contacts the elastic locking component 3 and applies force to the elastic locking component 3, so that the elastic locking component 3 is compressed. When the filter element assembly 2 is pressed all the way down, the movable member 5 passes over the elastic locking component 3, that is, the movable member 5 is closer to the first elastic member 4 than the elastic locking component 3. The elastic locking component 3 returns to its original position. At this time, release the hand to remove the pressing force F1, and the first elastic member 4 returns to its original position, driving the filter element assembly 2 to move away from the first elastic member 4, as shown in Figure 6(b). At this time, the elastic locking component 3 blocks the movable member 5. As the filter element assembly 2 moves together, the movable part 5 gradually moves towards the side of the locking groove 25 closer to the first elastic member 4. When the movable part 5 contacts the side of the locking groove 25 closer to the first elastic member 4, under the elastic force of the first elastic member 4, the locking groove 25 drives the movable part 5 to move away from the first elastic member 4. At this time, the movable part 5 applies force to the elastic locking assembly 3, causing the elastic locking assembly 3 to be compressed again. The movable part 5 passes over the elastic locking assembly 3, that is, the movable part 5 is closer to the pressing part 22 than the elastic locking assembly 3. At this time, the elastic locking assembly 3 no longer blocks the filter element assembly 2, that is, the elastic locking assembly 3 no longer blocks the filter element assembly 2. As shown in Figure 6(c), at least part of the structure of the filter element assembly 2 leaves the receiving cavity 10 under the elastic force of the first elastic member 4, and the user can easily remove the filter element assembly 2 from the filter mechanism. When the filter element assembly 2 needs to be installed in the filtration mechanism, the filter element assembly 2 is inserted into the receiving cavity 10. At this time, the side wall of the filter element assembly 2 squeezes the elastic snap-fit ​​component 3, causing the elastic snap-fit ​​component 3 to be compressed and pressed towards the first elastic member 4, so that it overcomes the elastic force of the first elastic member 4 and moves towards the first elastic member 4. Due to gravity, the movable part 5 is located on the side of the snap-fit ​​groove near the pressing part 22. Therefore, a gap is formed on the side of the snap-fit ​​groove 25 near the first elastic member 4. When the filter element assembly 2 continues to move towards the first elastic member 4, so that the gap of the snap-fit ​​groove 25 is aligned with the elastic snap-fit ​​component 3, since there is no structure to block the elastic snap-fit ​​component 3, the elastic snap-fit ​​component 3 returns to its original position and is inserted into the gap. Thus, the elastic snap-fit ​​component 3 fixes the filter element assembly 2 in the receiving cavity 10 of the filtration mechanism, thereby completing the installation of the filter element assembly 2.

[0033] In this embodiment, through the ingenious cooperation of the elastic snap-fit ​​component 3, the movable part 5, and the snap-fit ​​groove 25, as well as the elastic cooperation between the external pressing force F1 and the first elastic part 4, whether installing or removing the filter element assembly 2, it is only necessary to press the pressing part 22 of the filter element assembly 2 in the direction of the first elastic part 4. There is no need to install or remove other parts, and the operation steps are simple and quick. Moreover, during the installation or removal of the filter element assembly 2, there is no need to remove the filter mechanism. The filter mechanism in this embodiment can be well applied to various types of shower equipment, faucets, or water purifiers.

[0034] Furthermore, at least two mounting slots 145 are provided around the outer periphery of the snap-fit ​​groove 25 in the accommodating cavity 10, and each mounting slot 145 is equipped with one of the elastic snap-fit ​​components 3. Specifically, when the filter mechanism in this embodiment is applied to a shower head, a cover plate 15 is connected to the inner side 144 of the water outlet panel 14. A second through hole 151 for the filter element assembly 2 to pass through is provided in the middle of the cover plate 15, and at least two mounting slots 145 are provided between the cover plate 15 and the water outlet panel 14. In this embodiment, the mounting slots 145 are provided to facilitate the installation of the elastic snap-fit ​​component 3, and the provision of at least two mounting slots 145 and the elastic snap-fit ​​component 3 ensures the fixing effect of the elastic snap-fit ​​component 3 on the filter element assembly 2.

[0035] Furthermore, the elastic snap-fit ​​assembly 3 includes a second elastic member 31 and a snap-fit ​​block 32 connected to the end of the second elastic member 31 near the filter element assembly 2. The snap-fit ​​block 32 can extend into the snap-fit ​​groove 25. The end of the snap-fit ​​block 32 near the filter element assembly 2 is provided with a first inclined surface 322, and the end of the movable member 5 away from the filter element assembly 2 is provided with a second inclined surface 52. Preferably, along the direction from the pressing part 22 to the first elastic member 4, the distance d1 between a point on the first inclined surface 322 and the central axis X of the filter element assembly 2 gradually decreases, and the distance d2 between a point on the second inclined surface 52 and the central axis X of the filter element assembly 2 gradually increases. Specifically, the second elastic member 31 is also a spring. In this embodiment, by setting the first inclined surface 322, it is convenient for the filter element assembly 2 or the movable part 5 to apply force to the first inclined surface 322, thereby driving the elastic snap-fit ​​assembly 3 to be compressed; by setting the second inclined surface 52, it is convenient for the movable part 5 to pass over the elastic snap-fit ​​assembly 3 when the filter element assembly is disassembled, so that at least part of the structure of the filter element assembly 2 can smoothly leave the receiving cavity 10 under the elastic force of the first elastic part 4.

[0036] Furthermore, the filter element assembly 2 includes a filter element cylinder 27, the interior of which is provided with a filter media cavity 273. One end of the filter element cylinder 27 is connected to the water inlet 11, and the other end is connected to the water outlet 12. Preferably, one end of the filter element cylinder 27 is provided with a first opening 272, and the other end is provided with a plurality of first through holes 271. A filter element cover 28 is detachably connected to the first opening 272, and the filter element cover 28 is provided with a plurality of second through holes 281. Preferably, the filter element assembly 2 further includes a mounting base 26, which has a mounting cavity 262 inside. The end of the filter element cylinder 27 near the pressing part 22 is detachably disposed in and communicates with the mounting cavity 262. A through groove 263 is provided on the mounting base 26 or between the mounting base 26 and the filter element cylinder 27. The mounting cavity 262 communicates with the water outlet 12 through the through groove 263. A snap-fit ​​groove 25 is provided on the side wall of the mounting base 26, and the pressing part 22 is provided at the end of the mounting base 26 away from the first elastic member 4. In actual use, water enters the filter element cylinder 27 through the second through hole 281 on the filter element cover 28. The filter material cavity 273 inside the filter element cylinder 27 is filled with filter material. After being filtered by the filter material, the water flows out from the first through hole 271, then enters the mounting cavity 262 of the mounting base 26, and finally flows into the water outlet 12 through the through groove 263. In this embodiment, by providing a filter cover 28 that is detachably connected to the filter cartridge 27, it is convenient for users to regularly replace the filter material in the filter media cavity 273 without having to discard the entire filter cartridge 27, thus reducing usage costs and saving energy and being environmentally friendly.

[0037] Furthermore, the filter assembly 2 also includes an aromatherapy component 29, which is detachably disposed in the mounting cavity 262. In this embodiment, by providing the aromatherapy component 7, the aromatherapy function can be enjoyed while showering.

[0038] Specifically, when the filtration mechanism in this embodiment is applied to a shower head, a first inner shell 6 is also provided inside the outer shell 1. One end of the first inner shell 6 is connected to the connector 13, and the other end is connected to the water outlet panel 14. A first water passage chamber 63 is formed between the first inner shell 6 and the water outlet panel 14. A first elastic member 4 is disposed between the end of the filter element assembly 2 away from the pressing part 22 and the first inner shell 6. The filter element assembly 2 is disposed inside the first inner shell 6. The inner side wall of the first inner shell 6 and the outer side wall of the filter element assembly 2 are fitted together, and a sealing ring 65 is provided between them. In this way, when water flows in from the connector 13, the water can only enter the filter element assembly 2 and cannot flow out from between the inner side wall of the first inner shell 6 and the outer side wall of the filter element assembly 2, ensuring that the water flowing out from the water outlet 12 is filtered by the filter element assembly 2. The water flowing out from the filter element assembly 2 passes through the through groove 263 and then enters the first water passage chamber 63, and finally flows out from the water outlet panel 14.

[0039] Example 2

[0040] Taking the application of this press-type quick-release filter assembly in a shower head as an example, combined with the attached... Figure 1-2 Sections 7-9 provide a detailed description of the structure of a filter mechanism for a press-type quick-release filter element assembly in this embodiment.

[0041] like Figure 1-2 As shown in Figures 7-9, compared with Embodiment 1, the difference in this embodiment is that the filter element assembly 2 further includes a movable cylinder 8, which is disposed in the accommodating cavity 10. The end of the movable cylinder 8 away from the pressing part 22 is connected to the water inlet 11, and the end near the pressing part 22 is provided with a second opening 83. The end of the filter element cylinder 27 away from the pressing part 22 is detachably disposed in the movable cylinder 8 through the second opening 83. The first elastic member 4 is disposed between the end of the movable cylinder 8 away from the pressing part 22 and the outer shell 1. The side wall of the mounting base 26 away from the pressing part 22 abuts against the end of the movable cylinder 8 near the pressing part 22. Under the action of the external pressing force F1 and / or the elastic force of the first elastic member 4, the movable cylinder 8 can move relative to the accommodating cavity 10.

[0042] Specifically, when the filtration mechanism in this embodiment is applied to a shower head, a second inner shell 9 is also provided inside the outer shell 1. One end of the second inner shell 9 is connected to the outer shell 1, and the other end is connected to the water outlet panel 14. A second water passage chamber 93 is formed between the second inner shell 9 and the water outlet panel 14. Part of the filter element assembly 2 is disposed in the movable cylinder 8, and another part is disposed in the second inner shell 9. The outer side wall of the movable cylinder 8 and the inner side wall of the outer shell 1 are fitted together, and a sealing ring 65 is provided between them. The inner side wall of the movable cylinder 8 and the filter element assembly 2 are... The outer walls are also fitted together and a sealing ring 65 is provided between them; thus, when water flows in from the connector 13, the water can only enter the movable cylinder 8 and then the filter element assembly 2, and cannot flow out from between the inner wall of the movable cylinder 8 and the outer wall of the filter element assembly 2, or between the outer wall of the movable cylinder 8 and the inner wall of the outer shell 1, ensuring that the water flowing out from the outlet 12 is filtered by the filter element assembly 2; the water flowing out from the filter element assembly 2 passes through the through groove 263 and then enters the second water passage chamber 93, and finally flows out from the water outlet panel 14.

[0043] The filter mechanism of the press-type quick-release filter element assembly in Example 1 requires the filter element cartridge 27 to be installed for normal use; in this example, a movable cartridge 8 is provided, such as Figure 7-8As shown, regardless of whether the filter cartridge 27 is installed, under the action of the first elastic member 4, the end of the side wall of the mounting base 26 away from the pressing part 22 is always in contact with the end of the movable cylinder 8 near the pressing part 22. This arrangement ensures that the filtration mechanism in this embodiment can be used normally regardless of whether the filter cartridge 27 is installed, meeting the different usage needs of users. The installation and disassembly process of the filter assembly 2 or the mounting base 26 in this embodiment is similar to that in Embodiment 1. It is achieved through the clever cooperation of the elastic snap-fit ​​assembly 3, the movable member 5, and the snap-fit ​​groove 25, as well as the elastic cooperation of the external pressing force F1 and the first elastic member 4. Whether installing or disassembling the filter assembly 2 or the mounting base 26, it is only necessary to press the pressing part 22 towards the first elastic member 4. Therefore, the specific disassembly and installation process will not be described in detail here.

[0044] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A filter mechanism with a press-type quick-release filter element assembly, the filter mechanism comprising a housing, a filter element assembly, and an elastic snap-fit ​​assembly, wherein the housing is provided with an inlet and an outlet, and a receiving cavity is provided inside the housing, the filter element assembly is disposed in the receiving cavity and is detachably connected to the receiving cavity by the elastic snap-fit ​​assembly, characterized in that: One end of the filter core assembly is provided with a pressing portion extending to the outside of the accommodating cavity, a first elastic member is arranged between the other end of the filter core assembly away from the pressing portion and the outer shell body, a clamping groove is formed in the side wall of the filter core assembly, the elastic clamping assembly can extend into the clamping groove, and a movable member is movably arranged in the clamping groove; under the action of external pressing force and / or elastic force of the first elastic member, the filter core assembly can move relative to the accommodating cavity, the elastic clamping assembly can perform telescopic movement under the action of the movable member in the process of movement of the filter core assembly, and the movable member can move in the clamping groove under the action of the elastic clamping assembly.

2. The filter mechanism of claim 1, wherein: At least two mounting grooves are arranged around the outer circumferential side of the clamping groove in the accommodating cavity, and each mounting groove is provided with one elastic clamping assembly.

3. The filter mechanism of claim 1, wherein: The elastic clamping assembly comprises a second elastic member and a clamping block connected to one end of the second elastic member close to the filter core assembly, the clamping block can extend into the clamping groove, one end of the clamping block close to the filter core assembly is provided with a first inclined surface, and one end of the movable member away from the filter core assembly is provided with a second inclined surface.

4. The filter mechanism of claim 3, wherein: In the direction from the pressing portion to the first elastic member, the distance between the point on the first inclined surface and the central axis of the filter core assembly gradually decreases, and the distance between the point on the second inclined surface and the central axis of the filter core assembly gradually increases.

5. The filter mechanism of any one of claims 1-4, wherein: The filter core assembly comprises a filter core barrel, the inside of the filter core barrel is provided with a filter material cavity, one end of the filter core barrel is communicated with the water inlet, and the other end is communicated with the water outlet.

6. The filter mechanism of claim 5, wherein: One end of the filter core barrel is provided with a first opening, the other end is provided with a plurality of first through holes, a filter core cover is detachably connected in the first opening, and a plurality of second through holes are formed in the filter core cover.

7. The filter mechanism of claim 5, wherein: The filter core assembly further comprises a mounting seat, the inside of the mounting seat is provided with a mounting cavity, one end of the filter core barrel close to the pressing portion is detachably arranged in the mounting cavity and communicated with the mounting cavity, a through groove is arranged on the mounting seat or between the mounting seat and the filter core barrel, the mounting cavity is communicated with the water outlet through the through groove, the clamping groove is arranged on the side wall of the mounting seat, and the pressing portion is arranged at one end of the mounting seat away from the first elastic member.

8. The filter mechanism of claim 7, wherein: The filter core assembly further comprises a fragrance assembly, and the fragrance assembly is detachably arranged in the mounting cavity.

9. The filter mechanism of claim 7, wherein: The filter core assembly further comprises a movable barrel, the movable barrel is arranged in the accommodating cavity, one end of the movable barrel away from the pressing portion is communicated with the water inlet, one end of the movable barrel close to the pressing portion is provided with a second opening, one end of the filter core barrel away from the pressing portion is detachably arranged in the movable barrel through the second opening, the first elastic member is arranged between one end of the movable barrel away from the pressing portion and the outer shell body, and one end of the side wall of the mounting seat away from the pressing portion and one end of the movable barrel close to the pressing portion abut each other, under the action of external pressing force and / or elastic force of the first elastic member, the movable barrel can move relative to the accommodating cavity.

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