Filter element device and water purifier

Abstract

The filter element device comprises a base, a filter element, a locking piece and a driving mechanism, the base is provided with a first sliding guide structure extending in the vertical direction and further provided with a second sliding guide structure extending in the transverse direction, and the filter element is connected to the first sliding guide structure and can slide in the vertical direction; the lower end of the filter element is provided with a first buckling part, the locking piece is connected to the second guide sliding structure and can slide in the transverse direction, the locking piece is provided with a second buckling part, the second buckling part is used for being connected with the first buckling part in a clamped mode so that the filter element can be fixed to the base, and the driving mechanism is connected to the locking piece and used for driving the locking piece to slide in the transverse direction. Therefore, the first buckling part and the second buckling part are locked or unlocked. The filter element can be fixed on the base or detached from the base through the locking piece, a threaded connection structure does not need to be arranged on the filter element, so that the filter element does not need to be rotated manually, the situation that threads are stuck does not exist, operation is easy and labor is saved, and a user can replace the filter element quickly and conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to a filter element device and water purifier. BACKGROUND

[0002] The bottom of the traditional filter element is provided with a rotating buckle, and the waterway plate is provided with a locking mechanism. The filter element is fixed on the waterway plate by cooperation of the rotating buckle and the locking mechanism. When the filter element is installed and disassembled, the filter element needs to be rotated. Since the filter element is a smooth cylindrical structure, there are few force application positions, which makes it very inconvenient to install and disassemble the filter element and the operation is laborious. SUMMARY

[0003] The utility model wants to solve the technical problem that the filter element is inconvenient to disassemble in the prior art, and provides a filter element device and water purifier.

[0004] The utility model solves the above technical problem through the following technical scheme:

[0005] A filter element device comprises a base, a filter element, a locking piece and a driving mechanism. The base has a first guide sliding structure extending in the vertical direction. The base also has a second guide sliding structure extending in the horizontal direction. The filter element is connected to the first guide sliding structure and can slide in the vertical direction. The lower end of the filter element has a first buckle part. The locking piece is connected to the second guide sliding structure and can slide in the horizontal direction. The locking piece has a second buckle part. The second buckle part is used for buckling connection with the first buckle part, so that the filter element is fixed to the base. The driving mechanism is connected to the locking piece and is used for driving the locking piece to slide in the horizontal direction, so that the first buckle part and the second buckle part are locked or unlocked.

[0006] In the scheme, the filter element of the filter element device is slid on the base in the vertical direction through the first guide sliding structure. The locking piece is slid on the base in the horizontal direction through the second guide sliding structure. The first buckle part on the filter element can be buckled and connected with the second buckle part on the locking piece. Since the locking piece is connected to the second guide sliding structure on the base, the filter element can be fixed to the base or disassembled from the base through the locking piece. When the filter element is installed, the filter element is pressed downward, and when the filter element is slid downward to the position of the locking piece, the first buckle part on the filter element is buckled and connected with the second buckle part on the locking piece. The filter element is fixed to the base. When the filter element is disassembled, the locking piece is driven to slide in the horizontal direction away from the filter element by the driving mechanism. The first buckle part and the second buckle part are separated from each other and unlocked, so that the filter element is disassembled from the base. Since there is no threaded connection structure on the filter element, the filter element does not need to be manually rotated during the installation and disassembly of the filter element, and there is no threaded jamming situation. Therefore, the operation is simple and labor-saving, and the user can quickly replace the filter element.

[0007] Preferably, the filter core device further comprises an elastic assembly arranged between the base and the locking member for applying a force to make the locking member approach the filter core in the transverse direction.

[0008] In this scheme, the elastic assembly applies a force to make the locking member approach the filter core, so that the first clamping part and the second clamping part are in the clamped connection state, that is, the filter core is kept in the state of being fixed to the base, preventing the filter core from being unlocked accidentally and improving the reliability. At the same time, after the driving mechanism drives the locking member to be unlocked, the elastic assembly can also provide a restoring force to make the locking member automatically return to the locking position, without the need for manual operation of the locking member, which is convenient for the next installation and fixation of the filter core.

[0009] Preferably, the elastic assembly comprises a first elastic element and a second elastic element, the first elastic element is arranged between one end of the locking member and the base, and the second elastic element is arranged between the other end of the locking member and the base.

[0010] In this scheme, the first elastic element and the second elastic element are arranged at the two ends of the locking member respectively, so that the locking member is uniformly stressed and smoothly slides, avoiding jamming.

[0011] Preferably, the first guide sliding structure comprises a guide sliding cavity, the guide sliding cavity is arranged in the vertical direction on the base, the upper end of the guide sliding cavity has an opening, and the filter core is embedded in the guide sliding cavity and exposed to the opening.

[0012] And / or, the second guide sliding structure comprises a guide sliding limiting cavity, the guide sliding limiting cavity is arranged in the transverse direction inside the base, the guide sliding limiting cavity is in communication with the guide sliding cavity, and the locking member is embedded and slid in the transverse direction in the guide sliding limiting cavity.

[0013] In this scheme, the guide sliding cavity arranged in the vertical direction can not only accommodate and limit the movement of the filter core in the transverse direction, but also make the filter core slide in the vertical direction, which is simple in structure and convenient to install. The filter core is exposed to the opening, which is convenient for users to take the filter core when performing the core replacement operation.

[0014] The guide sliding limiting cavity arranged in the transverse direction can not only accommodate and limit the movement of the locking member up and down, but also make the locking member slide in the transverse direction, which is simple in structure and convenient to install.

[0015] Of course, in other alternative schemes, the first guide sliding structure and the second guide sliding structure can be any one of a sliding rail, a guide sliding rod or a guide sliding groove.

[0016] Preferably, the driving mechanism comprises an unlocking lever, a vertically extending channel is arranged on the base, the channel is communicated with the guide sliding limiting cavity, the unlocking lever is slidably arranged in the channel, the lower end of the unlocking lever is provided with a driving slope, the upper surface of the locking member is provided with a guide sliding slope, the driving slope is used for abutting against the guide sliding slope to drive the locking member to slide in the transverse direction away from the filter element.

[0017] In the scheme, by arranging a vertically extending channel in the base and inserting an unlocking lever in the channel, the unlocking lever is pressed from the upper surface of the base to operate the locking member in the base to unlock the first and second clamping portions. When unlocking, the unlocking lever is pressed and slides downward, the driving slope of the unlocking lever abuts against the guide sliding slope of the locking member, and the unlocking lever drives the locking member to slide in the transverse direction away from the filter element.

[0018] In an alternative scheme, the driving mechanism comprises a connecting member connected to the locking member, the connecting member drives the locking member to slide in the transverse direction away from the filter element by being pulled in the transverse direction to achieve the unlocking between the filter element and the base.

[0019] In another alternative scheme, the driving mechanism comprises a motor and a control panel, the control panel controls the motor, the motor drives the locking member to slide in the transverse direction away from the filter element to achieve the unlocking between the filter element and the base. The driving mechanism facilitates the arrangement of an unlocking button on the control panel, and the unlocking button can be pressed to achieve the unlocking, which is simple and convenient to operate.

[0020] Preferably, a resilient member is arranged between the unlocking lever and the base, and the resilient member applies a force to restore the unlocking lever to the initial position.

[0021] In the scheme, when the unlocking lever is released, the unlocking lever is restored to the initial position under the action of the resilient member, so that the locking member returns to the locking position.

[0022] Preferably, the lower end of the first clamping portion is provided with a first guide sliding surface for clamping the second clamping portion into the first clamping portion.

[0023] And / or, the upper end of the second clamping portion is provided with a second guide sliding surface for clamping the first clamping portion into the second clamping portion.

[0024] In the scheme, the first clamping portion is a protruding portion, the second clamping portion is an inverted L-shaped clamping slot, and the protruding portion is clamped into the L-shaped clamping slot. Of course, in other alternative schemes, the first clamping portion and the second clamping portion can also be replaced by other structures that are convenient to clamp and separate. For example, the first clamping portion is a telescopic rod, and the second clamping portion is a limiting hole, and the telescopic rod is inserted into the limiting hole.

[0025] By setting the first guide sliding surface on the first buckle part and the second guide sliding surface on the second buckle part, the first buckle part and the second buckle part are smoothly connected.

[0026] Preferably, the locking member comprises a HuaZi frame structure, opposite side walls of the lower end of the filter element are recessed inward to form two parallel planes, the lower end of the filter element is embedded in the HuaZi frame structure, the HuaZi frame structure slides on the planes, the first buckle part is located in the planes and protrudes outward, and the second buckle part is arranged on the opposite side walls of the HuaZi frame structure.

[0027] In the scheme, the HuaZi frame structure of the locking member facilitates the lower end of the filter element to be buckled in to achieve the clamping connection of the first buckle part and the second buckle part. Meanwhile, the opposite side walls of the lower end of the filter element are arranged as the inwardly recessed planes, which facilitates the HuaZi frame structure to slide on the surface of the filter element and reduces the volume of the filter element and the locking member.

[0028] Preferably, a plurality of first buckle parts are arranged in each of the two opposite planes, and a plurality of second buckle parts corresponding to the plurality of first buckle parts are arranged on the opposite side walls of the HuaZi frame structure.

[0029] In the scheme, the filter element is clamped by the first buckle parts on two sides and the second buckle parts on two sides of the locking member, which can make the filter element and the locking member bear force evenly and improve the fixing effect of the filter element.

[0030] A water purifier comprises the filter element device.

[0031] On the basis of common knowledge in the art, the above-mentioned preferred conditions can be combined arbitrarily, that is, the preferred embodiments of the present application are obtained.

[0032] The positive progress effect of the filter element device is that the filter element slides in the vertical direction on the base through the first guide sliding structure, and the locking member slides in the horizontal direction on the base through the second guide sliding structure, so that the first buckle part on the filter element can be clamped and connected with the second buckle part on the locking member, and since the locking member is connected to the second guide sliding structure on the base, the filter element can be fixed to or detached from the base through the locking member. When installing the filter element, the filter element is pressed downward, and when the filter element is slid downward to the position of the locking member, the first buckle part on the filter element is clamped and connected with the second buckle part on the locking member, so that the filter element is fixed to the base. When detaching the filter element, the locking member is driven to slide in the horizontal direction away from the filter element by the driving mechanism, so that the first buckle part and the second buckle part are separated from each other and unlocked, thereby realizing the detachment of the filter element from the base. Since no threaded connection structure is arranged on the filter element, the filter element does not need to be manually rotated during the installation and detachment of the filter element, and there is no situation of thread jamming, so that the operation is simple and labor-saving, and the user can quickly replace the filter element. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 Structure diagram of filter core device of a preferred embodiment of the present application Figure 1 .

[0034] Figure 2 Structure diagram of filter core device of a preferred embodiment of the present application Figure 2 .

[0035] Figure 3 Structure diagram of filter core device of a preferred embodiment of the present application Figure 3 .

[0036] Figure 4 For Figure 3 Sectional view along line A-A in the figure.

[0037] Figure 5 Structure diagram of base of a preferred embodiment of the present application.

[0038] Figure 6 Structure diagram of filter core of a preferred embodiment of the present application.

[0039] Figure 7 Structure diagram of filter core device of a preferred embodiment of the present application after hiding the base.

[0040] Figure 8 Structure diagram of filter core device of a preferred embodiment of the present application after hiding the base and the filter core.

[0041] Explanation of reference signs:

[0042] Base 1

[0043] First guide and sliding structure 11

[0044] Second guide and sliding structure 12

[0045] Passage 13

[0046] Filter core 2

[0047] First clamping part 21

[0048] First guide and sliding surface 211

[0049] Locking part 3

[0050] Second clamping part 31

[0051] Second guide and sliding surface 311

[0052] Guide and sliding inclined surface 32

[0053] Chinese character-shaped frame structure 33

[0054] drive mechanism 4

[0055] unlocking rod 41

[0056] drive slope 411

[0057] elastic assembly 5

[0058] first elastic element 51

[0059] second elastic element 52

[0060] elastic component 6

[0061] vertical direction 100

[0062] horizontal direction 200 DETAILED DESCRIPTION

[0063] The utility model will be more clearly and completely explained below by way of examples and in connection with the drawings, but the utility model is not limited in the scope of the examples by this.

[0064] As Figures 1-8 shown, the embodiment discloses a filter element device, which comprises a base 1, a filter element 2, a locking piece 3 and a drive mechanism 4, the base 1 is provided with a first guide sliding structure 11 extending along a vertical direction 100, the base 1 is also provided with a second guide sliding structure 12 extending along a horizontal direction 200, the filter element 2 is connected to the first guide sliding structure 11 and can slide along the vertical direction 100, the lower end of the filter element 2 is provided with a first buckle part 21, the locking piece 3 is connected to the second guide sliding structure 12 and can slide along the horizontal direction 200, the locking piece 3 is provided with a second buckle part 31, the second buckle part 31 is used for being connected with the first buckle part 21 in clamping, so that the filter element 2 is fixed to the base 1, the drive mechanism 4 is connected to the locking piece 3 and is used for driving the locking piece 3 to slide along the horizontal direction 200, so that the first buckle part 21 and the second buckle part 31 are locked or unlocked.

[0065] As Figures 1-8As shown, in this embodiment, the filter element 2 of the filter element device is slidably mounted vertically on the base 1 via the first guide slide structure 11, and the locking member 3 is slidably mounted horizontally on the base 1 via the second guide slide structure 12. The first latching part 21 on the filter element 2 can be engaged with the second latching part 31 on the locking member 3. Since the locking member 3 is connected to the second guide slide structure 12 on the base 1, the filter element 2 can be fixed to the base 1 or removed from the base 1 via the locking member 3. When installing the filter element 2, pressing down on the filter element 2 and sliding it down to the position of the locking member 3 causes the driving mechanism 4 to drive the locking member 3, so that the first latching part 21 on the filter element 2 is engaged with the second latching part 31 on the locking member 3, and the filter element 2 is fixed to the base 1. When disassembling filter element 2, the locking part 3 is driven by the drive mechanism 4 to slide laterally 200 degrees away from filter element 2. This causes the first latching part 21 and the second latching part 31 to separate and unlock, thus removing filter element 2 from the base 1. Since filter element 2 does not require a threaded connection structure, there is no need to manually rotate it during installation and removal, and there is no risk of thread jamming. Therefore, the operation is simple and effortless, allowing users to quickly replace the filter element.

[0066] Of course, in other alternative embodiments, the vertical and horizontal directions can also be set to other directions.

[0067] like Figure 3 and Figure 4 As shown, in this embodiment, the filter element device further includes an elastic component 5, which is disposed between the base 1 and the locking member 3. The elastic component 5 applies a force that causes the locking member 3 to move laterally 200 toward the filter element 2, keeping the first latching part 21 and the second latching part 31 in a engaged connection state, preventing the filter element 2 from being accidentally unlocked and improving reliability. Simultaneously, after the driving mechanism 4 unlocks the locking member 3, the elastic component 5 also provides a restoring force, causing the locking member 3 to automatically return to the locked position without manual operation, facilitating the next fixation of the filter element 2.

[0068] like Figure 7 and Figure 8 As shown, in this embodiment, the elastic component 5 includes a first elastic element 51 and a second elastic element 52. The first elastic element 51 is disposed between one end of the locking member 3 and the base 1, and the second elastic element 52 is disposed between the other end of the locking member 3 and the base 1. The first elastic element 51 and the second elastic element 52 are respectively disposed at both ends of the locking member 3 to ensure that the locking member 3 is subjected to uniform force and to slide smoothly, avoiding jamming.

[0069] like Figures 1-5As shown in the drawings, in the embodiment, the first guide structure 11 comprises a guide cavity, the guide cavity is arranged on the base 1 along the vertical direction 100, the upper end of the guide cavity has an opening, and the filter element 2 is embedded in the guide cavity and exposed to the opening. The guide cavity arranged along the vertical direction 100 can not only accommodate and limit the movement of the filter element 2 along the horizontal direction 200, but also guide the filter element 2 along the vertical direction 100, which is simple in structure and convenient to install. Exposing the filter element 2 to the opening facilitates the user to take the filter element 2 when performing the replacement operation.

[0070] As shown in the drawings, Figures 2-4 the second guide structure 12 comprises a guide limiting cavity, the guide limiting cavity is arranged in the interior of the base 1 along the horizontal direction 200, the guide limiting cavity is in communication with the guide cavity, and the locking piece 3 is embedded and slid along the horizontal direction 200 in the guide limiting cavity. The guide limiting cavity arranged along the horizontal direction 200 can not only accommodate and limit the up-down movement of the locking piece 3, but also guide the locking piece 3 along the horizontal direction 200, which is simple in structure and convenient to install.

[0071] Of course, in other alternative embodiments, the first guide structure and the second guide structure can be any one of a sliding rail, a guide rod or a guide groove.

[0072] As shown in the drawings, Figures 1-8 in the embodiment, the driving mechanism 4 comprises an unlocking rod 41, the base 1 is provided with a channel 13 extending along the vertical direction 100, the channel 13 is in communication with the guide limiting cavity, the unlocking rod 41 is slid in the channel 13, the lower end of the unlocking rod 41 has a driving slope 411, and the upper surface of the locking piece 3 has a guide slope 32, the driving slope 411 is used for abutting against the guide slope 32 to drive the locking piece 3 to slide along the horizontal direction 200 away from the filter element 2. By arranging the channel 13 extending along the vertical direction 100 in the base 1 and inserting the unlocking rod 41 in the channel 13, it is convenient to press the unlocking rod 41 from the upper surface of the base 1 to operate the locking piece 3 in the base 1, so as to realize the unlocking of the first buckle part 21 and the second buckle part 31. When unlocking, the unlocking rod 41 is pressed and slides downward, the driving slope 411 of the unlocking rod 41 abuts against the guide slope 32 of the locking piece 3, and the unlocking rod 41 will drive the locking piece 3 to slide along the horizontal direction 200 away from the filter element 2.

[0073] In an alternative embodiment, the driving mechanism comprises a connecting piece, the connecting piece is connected to the locking piece, by pulling the connecting piece along the horizontal direction, the connecting piece will drive the locking piece to slide along the horizontal direction away from the filter element, so as to realize the unlocking between the filter element and the base.

[0074] In another alternative embodiment, the driving mechanism comprises a motor and a control board, the control board controls the motor, the motor drives the locking member to slide in a direction transversely away from the filter element, so as to realize the unlocking between the filter element and the base. The driving mechanism of the motor and the control board cooperates, which is convenient to set the unlocking button on the control panel, and the unlocking can be realized by pressing the control button, which is simple and convenient to operate.

[0075] As shown in Figure 7 and Figure 8 , in the embodiment, the elastic component 6 is arranged between the unlocking rod 41 and the base 1, and the elastic component 6 applies an action force to make the unlocking rod 41 return to the initial position. When the unlocking rod 41 is released, the unlocking rod 41 returns to the initial position under the action force of the elastic component 6, so that the locking member 3 returns to the locking position, and it is also convenient for pressing the unlocking rod 41 next time.

[0076] As shown in Figure 4 , Figure 6 and Figure 8 , the lower end of the first clamping part 21 has a first guide sliding surface 211, which is used for the second clamping part 31 to be clamped into the first clamping part 21. The upper end of the second clamping part 31 has a second guide sliding surface 311, which is used for the first clamping part 21 to be clamped into the second clamping part 31. In the embodiment, the first clamping part 21 is a protruding part, and the second clamping part 31 is an inverted L-shaped clamping groove, and the protruding part is clamped into the L-shaped clamping groove. By arranging the first guide sliding surface 211 on the first clamping part 21 and the second guide sliding surface 311 on the second clamping part 31, the first clamping part 21 and the second clamping part 31 are conveniently and smoothly clamped.

[0077] Of course, in other alternative embodiments, the first clamping part and the second clamping part can also be replaced by other structures convenient for clamping and separating. For example, the first clamping part is a telescopic rod, and the second clamping part is a limiting hole, the telescopic rod moves downward and slides into the limiting hole to realize locking, and when unlocking, the locking member is moved to unlock. For example, the first clamping part is a fixed hole, and the second clamping part is a locking rod, and the locking rod is inserted into the fixed hole, and the filter element 2 can also be fixed.

[0078] As shown in Figures 6-8As shown, in this embodiment, the locking member 3 includes a U-shaped frame structure 33. The opposite side walls of the lower end of the filter element 2 are recessed inwards to form parallel planes. The lower end of the filter element 2 can be embedded in the U-shaped frame structure 33, which slides on the plane. The first latching part 21 is located in the plane and protrudes outwards, while the second latching part 31 is disposed on the opposite side walls of the U-shaped frame structure 33. The U-shaped frame structure 33 of the locking member 3 facilitates the insertion of the lower end of the filter element 2, thereby achieving the engaging connection between the first latching part 21 and the second latching part 31. Simultaneously, setting the opposite side walls of the lower end of the filter element 2 as inwardly recessed planes not only facilitates the sliding of the U-shaped frame structure 33 on the surface of the filter element 2 but also reduces the volume of the filter element 2 and the locking member 3.

[0079] like Figures 6-8 As shown, in this embodiment, multiple first latching portions 21 are provided in both opposite planes of the filter element 2, and multiple second latching portions 31 corresponding to the first latching portions 21 are provided on both opposite side walls of the U-shaped frame structure 33. The filter element 2 is engaged with the second latching portions 31 on both sides of the locking member 3 through the first latching portions 21 on both sides, which can make the filter element 2 and the locking member 3 bear force evenly and improve the fixing effect of the filter element 2.

[0080] This embodiment also discloses a water purifier, which includes the filter cartridge device described above.

[0081] In the description herein, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0082] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A filter cartridge device, characterized in that, It includes a base, a filter element, a locking member, and a driving mechanism. The base has a first guide slide structure extending vertically and a second guide slide structure extending laterally. The filter element is connected to the first guide slide structure and can slide vertically. The lower end of the filter element has a first latching portion. The locking member is connected to the second guide slide structure and can slide laterally. The locking member has a second latching portion for engaging with the first latching portion to fix the filter element to the base. The driving mechanism is connected to the locking member and drives the locking member to slide laterally to lock or unlock the first latching portion and the second latching portion.

2. The filter element device as described in claim 1, characterized in that, The filter element device further includes an elastic component disposed between the base and the locking member, for applying a force that causes the locking member to move laterally closer to the filter element.

3. The filter element device as described in claim 2, characterized in that, The elastic component includes a first elastic element and a second elastic element. The first elastic element is disposed between one end of the locking member and the base, and the second elastic element is disposed between the other end of the locking member and the base.

4. The filter element device as described in claim 1, characterized in that, The first guide structure includes a guide cavity, which is vertically disposed on the base. The upper end of the guide cavity has an opening, and the filter element is embedded in the guide cavity and exposed through the opening. And / or, the second guide slide structure includes a guide slide limiting cavity, the guide slide limiting cavity is disposed laterally inside the base, the guide slide limiting cavity is connected to the guide slide cavity, and the locking member is embedded in and slidably disposed laterally in the guide slide limiting cavity.

5. The filter element device as described in claim 4, characterized in that, The driving mechanism includes an unlocking rod. A vertically extending channel is provided on the base, and the channel communicates with the guide sliding limiting cavity. The unlocking rod is slidably disposed in the channel. The lower end of the unlocking rod has a driving inclined surface, and the upper surface of the locking member has a guide sliding inclined surface. The driving inclined surface is used to abut against the guide sliding inclined surface to drive the locking member to slide laterally away from the filter element.

6. The filter element device as described in claim 5, characterized in that, An elastic component is provided between the unlocking rod and the base, and the elastic component applies a force to return the unlocking rod to its initial position.

7. The filter element device as described in claim 1, characterized in that, The lower end of the first latching part has a first guide surface, which is used for the second latching part to engage with the first latching part; And / or, the upper end of the second latching part has a second guide surface, the second guide surface being used for the first latching part to engage with the second latching part.

8. The filter element device as described in claim 1, characterized in that, The locking component includes a U-shaped frame structure. The opposite side walls of the lower end of the filter element are recessed inward to form parallel planes. The lower end of the filter element can be embedded in the U-shaped frame structure. The U-shaped frame structure slides on the plane. The first buckle is located in the plane and protrudes outward. The second buckle is disposed on the opposite side walls of the U-shaped frame structure.

9. The filter element device as described in claim 8, characterized in that, Multiple first buckle portions are provided in both of the two opposing planes, and multiple second buckle portions corresponding one-to-one with the multiple first buckle portions are provided on the opposite side walls of the U-shaped frame structure.

10. A water purifier, characterized in that, The water purifier includes a filter cartridge device as described in any one of claims 1-9.

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