Filter cartridge and water tank

Abstract

This application relates to a filter cartridge mechanism and a water tank. The filter cartridge mechanism includes a housing and a timer. The housing extends along a first direction and encloses a filter cavity filled with filter media. The housing includes a bottom plate and a top plate located at both ends in the first direction. A first protrusion and a plurality of first engaging portions surrounding the first protrusion are provided on the side of the bottom plate away from the filter cavity. A first slot is formed between two adjacent first engaging portions. An inlet communicating between the filter cavity and the first slot is provided on the bottom plate. An outlet communicating between the inside and outside of the filter cavity is provided on the first protrusion. The timer is installed on the side of the top plate away from the filter cavity. The filter cartridge mechanism provided by this application, by setting a timer, allows users to directly record the time for replacing the filter cartridge, reducing the risk of water quality deterioration due to the filter cartridge exceeding its service life and improving the user experience. By placing both the inlet and outlet on one side of the bottom plate, the timer can be placed on the top plate for convenient user operation.

Description

Technical Field

[0001] This application relates to the field of filtration technology, and in particular to a filter cartridge mechanism and a water tank. Background Technology

[0002] Most instant hot water dispensers in the industry are usually supplied with water by their own water tank, and the water quality inside the tank directly affects the quality of the water dispenser.

[0003] To improve the quality of water from a water dispenser, a common practice is to add a filter cartridge inside the water tank. However, the filter media has a limited lifespan, known as the saturation period, after which the filter cartridge needs to be replaced. Traditional filter cartridges lack a reminder function for this lifespan, causing inconvenience to users. Utility Model Content

[0004] Therefore, it is necessary to provide a filter element mechanism that can record filter element replacement time to address the above-mentioned technical problems.

[0005] An embodiment of this application provides a filter cartridge mechanism, including a housing and a timer. The housing extends along a first direction and encloses a filter cavity, which is filled with filter media. The housing includes a bottom plate and a top plate located at both ends in the first direction. The bottom plate has a first protrusion and a plurality of first snap-fit ​​parts arranged around the first protrusion on the side away from the filter cavity. A first snap-fit ​​groove is formed between two adjacent first snap-fit ​​parts. The bottom plate has an inlet that communicates with the filter cavity and the first snap-fit ​​groove. The first protrusion has an outlet that communicates with the inside and outside of the filter cavity. The timer is installed on the top plate on the side away from the filter cavity.

[0006] In one embodiment, the housing further includes an annular side plate connecting the bottom plate and the top plate; the filter element mechanism further includes an annular partition, which is located inside the filter cavity and connected to the housing. The annular partition extends along a first direction and divides the filter cavity into an inner cavity and an outer cavity. The inner cavity is formed by the annular partition, and the outer cavity is located between the annular partition and the annular side plate.

[0007] In one embodiment, the annular partition is connected to the bottom plate, and a notch connecting the inner cavity and the outer cavity is provided between the annular partition and the top plate.

[0008] In one embodiment, the inlet is connected to the outer cavity, and the outlet is connected to the inner cavity.

[0009] In one embodiment, the ratio of the length of the annular partition in the first direction to the length of the annular side plate in the first direction is greater than or equal to three-quarters.

[0010] In one embodiment, the water outlet extends through the first protrusion along a first direction; the filter element mechanism also includes a sealing member, which is movably connected to the housing. When the sealing member is not subjected to external force, it blocks the water outlet, and when the sealing member is subjected to external force, the water outlet connects the inside and outside of the filter cavity.

[0011] In one embodiment, the sealing element includes: a connecting rod, at least partially located inside the outlet and extending along a first direction; a sealing block, connected to the connecting rod and located on the side of the outlet facing the filter cavity, the sealing block sealing the outlet when it abuts against the wall of the first boss on the side facing the filter cavity; when the sealing block moves away from the first boss, the outlet connects the inside and outside of the filter cavity; and an elastic element, sleeved on the connecting rod, the elastic element being used to drive the sealing block closer to the first boss.

[0012] In one embodiment, the timer includes a dial and a pointer, the dial being mounted on the side of the top plate away from the filter chamber, and the pointer being rotatably connected to the top plate.

[0013] In one embodiment, it further includes a handle, mounted on the side of the top plate away from the filter chamber.

[0014] The second aspect of this application provides a water tank, including a tank body and a filter element mechanism as provided in any of the first aspect embodiments above. The tank body is provided with a receiving cavity for accommodating the filter element mechanism, and the tank body is provided with a plurality of second snap-fit ​​portions on the side facing the receiving cavity, which are aligned with the first snap-fit ​​slot.

[0015] The filter cartridge mechanism provided in this application, by incorporating a timer, allows users to directly record the filter cartridge replacement time, reducing the risk of water quality deterioration due to overuse of the filter cartridge and improving the user experience. By placing both the inlet and outlet on one side of the base plate, the timer can be positioned on the top plate, facilitating user operation and time observation, further enhancing the user experience. The base plate features multiple first locking portions surrounding the first protrusion, with adjacent first locking portions forming first slots. This allows the filter cartridge to be placed directly into the water tank from top to bottom during replacement, where it is secured to the tank via the first locking portions, improving replacement efficiency and further enhancing the user experience. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a front view structural schematic diagram of the filter element mechanism of some embodiments of this application.

[0018] Figure 2 A schematic diagram of an example filter element mechanism is shown.

[0019] Figure 3 A schematic diagram of another example of a filter cartridge mechanism is shown.

[0020] Figure 4 An example is shown. Figure 1 A cross-sectional view of the filter element mechanism from an AA perspective.

[0021] Figure 5 An example is shown. Figure 4 A partially enlarged schematic diagram of the filter element mechanism.

[0022] Figure 6 A cross-sectional view of an example water tank is shown.

[0023] Figure label:

[0024] 10. Filter element mechanism; 20. Water tank; 21. Housing; 22. Receiving cavity;

[0025] 100. Shell; 110. Filter chamber; 111. Filter media; 112. Inner cavity; 113. Outer cavity; 120. Bottom plate; 121. First boss; 122. First snap-fit ​​part; 123. First slot; 124. Inlet; 125. Outlet; 126. Second boss; 127. Transition cavity; 130. Top plate; 140. Annular side plate;

[0026] 200. Timer; 210. Dial; 220. Hand;

[0027] 300. Annular partition; 310. Notch;

[0028] 400. Sealing component; 410. Connecting rod; 420. Sealing block; 430. Elastic component;

[0029] 500. Handle;

[0030] x, the first direction. Detailed Implementation

[0031] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0032] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0035] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0036] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0037] The filter element mechanism provided in the embodiments of this application will be described below with reference to the accompanying drawings. It should be noted that the x-direction in the drawings is the first direction. In the drawings, for ease of drawing, the dimensions are not necessarily proportional to the actual dimensions.

[0038] Please refer to Figures 1 to 4 , Figure 1 This is a front view structural schematic diagram of the filter element mechanism of some embodiments of this application. Figure 2 A schematic diagram of an example filter element mechanism is shown. Figure 3 A schematic diagram of another example of a filter cartridge mechanism is shown. Figure 4 An example is shown. Figure 1 A cross-sectional view of the filter element mechanism from an AA perspective.

[0039] like Figures 1 to 4 As shown, an embodiment of this application provides a filter element mechanism 10, including a housing 100 and a timer 200. The housing 100 extends along a first direction (x direction in the figure) and encloses a filter cavity 110, which is filled with filter material 111. The housing 100 includes a bottom plate 120 and a top plate 130 located at both ends in the first direction x. The bottom plate 120 has a first boss 121 and a plurality of first snap-fit ​​portions 122 arranged around the first boss 121 on the side away from the filter cavity 110. A first snap-fit ​​groove 123 is formed between two adjacent first snap-fit ​​portions 122. The bottom plate 120 has an inlet 124 communicating with the filter cavity 110 and the first snap-fit ​​groove 123. The first boss 121 has an outlet 125 communicating with the inside and outside of the filter cavity 110. The timer 200 is installed on the top plate 130 on the side away from the filter cavity 110.

[0040] Optionally, the filter material 111 can be at least one of activated carbon, PP cotton, and RO (Reverse Osmosis) membrane.

[0041] It should be noted that when the filter element mechanism 10 is installed on the water tank, the bottom plate 120 faces down and the top plate 130 faces up, so that the user can directly observe and operate the timer 200 on the top plate 130 from above.

[0042] Optionally, the number of first snap-fit ​​parts 122 is four, that is, the number of first snap-fit ​​slots 123 is also four. Since the four first snap-fit ​​parts 122 are arranged around the first protrusion 121, when the filter element mechanism 10 is snapped into the water tank, the first snap-fit ​​parts 122 will restrict the filter element mechanism 10 from rotating in the circumferential direction.

[0043] The filter cartridge mechanism 10 of this application embodiment, by setting a timer 200, allows the user to directly record the replacement time of the filter cartridge mechanism 10, reducing the risk of water quality deterioration due to overuse of the filter cartridge mechanism 10 and improving the user experience. By setting both the inlet 124 and the outlet 125 on one side of the base plate 120, the timer 200 can be arranged on the top plate 130, making it convenient for the user to operate the timer 200 and for the user to observe the time on the timer 200, further improving the user experience. By setting multiple first locking portions 122 surrounding the first protrusion 121 on the base plate 120, and forming a first locking groove 123 between two adjacent first locking portions 122, the filter cartridge mechanism 10 can be placed directly into the water tank from top to bottom when replacing the filter cartridge mechanism 10, and can be fixed to the water tank by locking the first locking portions 122, improving the replacement efficiency of the filter cartridge mechanism 10, and further improving the user experience.

[0044] In some embodiments, the housing 100 further includes an annular side plate 140 connecting the bottom plate 120 and the top plate 130. The filter element mechanism 10 also includes an annular partition 300, which is located within the filter cavity 110 and connected to the housing 100. The annular partition 300 extends along a first direction x and divides the filter cavity 110 into an inner cavity 112 and an outer cavity 113. The inner cavity 112 is formed by the annular partition 300, and the outer cavity 113 is located between the annular partition 300 and the annular side plate 140.

[0045] Optionally, the inlet 124 is connected to the outer cavity 113, and the outlet 125 is connected to the inner cavity 112. The base plate 120 has multiple inlets 124 corresponding one-to-one with the first slots 123, used to improve the water intake efficiency of the filter element mechanism 10. Furthermore, when the filter element mechanism 10 is installed in the water tank, because the first locking part 122 protrudes from the base plate 120, a gap is formed between the inlet 124 and the bottom of the water tank, facilitating the flow of water from the tank into the filter cavity 110 through the gap.

[0046] Optionally, the annular partition 300 is connected to the bottom plate 120, and a notch 310 connecting the inner cavity 112 and the outer cavity 113 is provided between the annular partition 300 and the top plate 130. The annular partition 300 is made of a waterproof and non-toxic material, so that the water flowing into the filter cavity 110 from the inlet 124 cannot pass through the annular partition 300, but can only move upward along the first direction x in the outer cavity 113, then enter the inner cavity 112 through the notch 310, and then move downward along the first direction x to the outlet 125 and flow out of the filter cavity 110. This significantly increases the path length of the water flow in the filter cavity 110, thereby improving the filtration effect of the filter element mechanism 10 on the water flow, and making full use of the volume in the filter cavity 110, thus improving the effective utilization rate of the filter material 111 in the filter cavity 110.

[0047] Optionally, the ratio of the length of the annular baffle 300 in the first direction x to the length of the annular side plate 140 in the first direction x is greater than or equal to three-quarters. By increasing the length of the annular baffle 300 in the first direction x, the path length of the water flow in the filter chamber 110 can be further increased, thereby further improving the filtration effect of the filter element mechanism 10.

[0048] It should be noted that in this embodiment, both the inlet 124 and the outlet 125 are located below the filter element mechanism 10. Water is drawn into the filter chamber 110 through the inlet 124 via a siphon principle, and then flows out of the filter chamber 110 through the outlet 125. Compared with the scheme that uses gravity as the water flow force, in this embodiment, the filter element mechanism 10 and the water tank do not need to be arranged vertically, which can make full use of the height space and significantly increase the length dimension of the filter element mechanism 10 in the first direction x, thereby increasing the volume of the filter material 111 inside the filter element mechanism 10 and the filtration effect of the filter element mechanism 10. In addition, the water pressure in the water tank and the air pressure difference inside and outside the filter chamber 110 can also force water in the water tank into the filter chamber 110 through the inlet 124, thereby improving the water intake efficiency of the filter element mechanism 10.

[0049] The filter element mechanism 10 of this application embodiment has a plurality of water inlets 124 on the base plate 120 that correspond one-to-one with the first slots 123, which improves the water intake efficiency of the filter element mechanism 10. When the filter element mechanism 10 is installed in the water tank, since the first snap-fit ​​part 122 protrudes from the base plate 120, a gap is formed between the water inlet 124 and the bottom of the water tank, which facilitates the flow of water in the water tank through the gap from the water inlet 124 into the filter chamber 110. By providing an annular side plate 140 in the filter chamber 110 to divide the filter chamber 110 into an inner chamber 112 and an outer chamber 113, and by providing a notch 310 between the annular partition 300 and the top plate 130 to connect the inner chamber 112 and the outer chamber 113, the water flowing into the filter chamber 110 from the inlet 124 cannot pass through the annular partition 300. Instead, the water can only move upward along the first direction x in the outer chamber 113, then enter the inner chamber 112 through the notch 310, and then move downward along the first direction x to the outlet 125 and flow out of the filter chamber 110. This significantly increases the path length of the water flow in the filter chamber 110, thereby improving the filtration effect of the filter element mechanism 10 and making full use of the volume in the filter chamber 110, thus improving the effective utilization rate of the filter media 111 in the filter chamber 110. By increasing the length of the annular partition 300 in the first direction x, the path length of the water flow in the filter chamber 110 can be further increased, thereby further improving the filtration effect of the filter element mechanism 10. By using the siphon principle to draw water into the filter chamber 110 from the inlet 124 below, compared with the scheme that uses gravity as the water flow force, the filter element mechanism 10 and the water tank in this embodiment do not need to be arranged vertically, which can make full use of the height space, greatly increase the length dimension of the filter element mechanism 10 in the first direction x, and thus increase the volume of the filter material 111 inside the filter element mechanism 10 and the filtration effect of the filter element mechanism 10.

[0050] Please refer to Figure 4 and Figure 5 , Figure 5 An example is shown. Figure 4 A partially enlarged schematic diagram of the filter element mechanism.

[0051] like Figure 4 and Figure 5 As shown, in some embodiments, the outlet 125 extends through the first boss 121 along the first direction x. The filter element mechanism 10 also includes a sealing member 400, which is movably connected to the housing 100. When the sealing member 400 is not subjected to external force, it blocks the outlet 125. When the sealing member 400 is subjected to external force, the outlet 125 connects the inside and outside of the filter chamber 110.

[0052] Optionally, the sealing element 400 includes a connecting rod 410, a sealing block 420, and an elastic element 430. The connecting rod 410 is at least partially located within the outlet 125 and extends along a first direction x. The sealing block 420 is connected to the connecting rod 410 and is located on the side of the outlet 125 facing the filter cavity 110. When the sealing block 420 abuts against the wall of the first boss 121 facing the filter cavity 110, it seals the outlet 125. When the sealing block 420 moves away from the first boss 121, the outlet 125 connects the inside and outside of the filter cavity 110. The elastic element 430 is sleeved on the connecting rod 410 and is used to drive the sealing block 420 closer to the first boss 121.

[0053] Optionally, a second boss 126 is provided between the base plate 120 and the first boss 121. The second boss 126 has a transition cavity 127 that connects the filter chamber 110 and the outlet 125. The sealing block 420 is located in the transition cavity 127 and can move along the first direction x within the transition cavity 127. The elastic element 430 is a spring, with one end connected to the connecting rod 410 and the other end connected to the first boss 121.

[0054] The filter cartridge mechanism 10 of this embodiment, by providing a sealing member 400, can block the water outlet 125 when no external force is applied, thus enabling the filter cartridge mechanism 10 to have a water-locking function. When the water tank containing the filter cartridge mechanism 10 is installed on the water purifier, the water nozzle on the water purifier will push the elastic member 430 and the sealing block 420 upwards, so that the sealing block 420 is away from the water outlet 125 in the transition cavity 127, thereby allowing the water outlet 125 to communicate with the filter cavity 110 through the transition cavity 127. When it is necessary to replace the filter cartridge mechanism 10, the filter cartridge mechanism 10 is lifted to separate the filter cartridge mechanism 10 from the water nozzle. The elastic member 430 will drive the connecting rod 410 to move the sealing block 420 closer to the water outlet 125 and block the water outlet 125, preventing water leakage when the filter cartridge mechanism 10 is lifted, thereby improving the user experience.

[0055] In some embodiments, the timer 200 includes a dial 210 and a pointer 220, with the dial 210 mounted on the side of the top plate 130 away from the filter chamber 110, and the pointer 220 rotatably connected to the top plate 130.

[0056] Optionally, the dial 210 includes 12 numbers from 1 to 12, representing 12 months. The 12 numbers are set around the pointer 220. When replacing the filter cartridge 10, the user can move the pointer 220 to align with the numbers on the dial 210 to record the month when the filter cartridge 10 is replaced, reducing the risk of water quality deterioration caused by the filter cartridge 10 being used beyond its expiration date and improving the user experience.

[0057] In other embodiments, the timer 200 can also be a countdown timer. When the user replaces the filter element mechanism 10, the user sets the countdown duration of the timer 200. When the timer 200 reaches zero, it means that the filter element mechanism 10 can be replaced.

[0058] In some embodiments, the filter element mechanism 10 also includes a handle 500, which is mounted on the side of the top plate 130 away from the filter chamber 110. The handle 500 is used to facilitate the user to lift the filter element mechanism 10, thereby improving the user experience of the filter element mechanism 10.

[0059] Please refer to Figures 1 to 6 , Figure 6 A cross-sectional view of an example water tank is shown.

[0060] like Figures 1 to 6 As shown, an embodiment of the second aspect of this application also provides a water tank 20, including a tank body 21 and a filter element mechanism 10 of any of the first aspects described above. Since the water tank 20 provided in the second aspect of this application includes the filter element mechanism 10 of any of the above embodiments, the water tank 20 provided in the second aspect of this application has the beneficial effects of the filter element mechanism 10 of any of the above embodiments, which will not be repeated here.

[0061] Optionally, the housing 21 has a receiving cavity 22 for accommodating the filter element mechanism 10. The housing 21 has multiple second engaging portions (not shown) aligned with the first engaging slots 123 on the side facing the receiving cavity 22. A second engaging slot (not shown) is formed between two adjacent second engaging portions. When the filter element mechanism 10 is placed into the water tank 20, the multiple first engaging portions 122 on the filter element mechanism 10 are aligned with the multiple second engaging slots in the water tank 20, and the multiple first engaging slots 123 on the filter element mechanism 10 are aligned with the multiple second engaging portions in the water tank 20, preventing the filter element mechanism 10 from rotating circumferentially within the water tank 20.

[0062] Optionally, the volume of the receiving cavity 22 should be larger than the overall volume of the filter element mechanism 10. After the filter element mechanism 10 is placed in the receiving cavity 22, the receiving cavity 22 also has a certain space for storing the water to be filtered.

[0063] Optionally, the size of the second snap-fit ​​part in the first direction x is slightly smaller than the size of the first snap-fit ​​part 122 in the first direction x, so that when the filter element mechanism 10 is installed in the water tank 20, there is a certain gap between the bottom plate 120 and the second snap-fit ​​part, so that the water in the water tank 20 can flow into the inlet 124 through the gap and finally flow into the filter chamber 110.

[0064] Optionally, the bottom of the water tank 20 is provided with a through hole (not shown) to allow the first boss 121 of the filter mechanism 10 in the receiving cavity 22 to extend out from the receiving cavity 22, so that the water outlet 125 and the sealing member 400 on the first boss 121 can cooperate with the water tap on the water purifier.

[0065] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A filter element mechanism, characterized in that, include: A housing extends along a first direction, the housing encloses a filter cavity, the filter cavity is filled with filter media, the housing includes a bottom plate and a top plate located at both ends in the first direction, the bottom plate has a first protrusion on the side away from the filter cavity and a plurality of first snap-fit ​​parts arranged around the first protrusion, a first snap-fit ​​groove is formed between two adjacent first snap-fit ​​parts, the bottom plate has an inlet communicating with the filter cavity and the first snap-fit ​​groove, and the first protrusion has an outlet communicating with the inside and outside of the filter cavity; A timer is installed on the side of the top plate opposite to the filter cavity.

2. The filter element mechanism according to claim 1, characterized in that, The housing also includes an annular side plate connecting the bottom plate and the top plate; The filter element mechanism further includes an annular partition, which is located inside the filter cavity and connected to the housing. The annular partition extends along the first direction and divides the filter cavity into an inner cavity and an outer cavity. The inner cavity is formed by the annular partition, and the outer cavity is located between the annular partition and the annular side plate.

3. The filter element mechanism according to claim 2, characterized in that, The annular partition is connected to the bottom plate, and a notch is provided between the annular partition and the top plate to connect the inner cavity and the outer cavity.

4. The filter element mechanism according to claim 2, characterized in that, The water inlet is connected to the outer cavity, and the water outlet is connected to the inner cavity.

5. The filter element mechanism according to claim 2, characterized in that, The ratio of the length of the annular partition in the first direction to the length of the annular side plate in the first direction is greater than or equal to three-quarters.

6. The filter element mechanism according to claim 1, characterized in that, The water outlet penetrates the first protrusion along the first direction; The filter element mechanism also includes a sealing element, which is movably connected to the housing. When the sealing element is not subjected to external force, it blocks the water outlet. When the sealing element is subjected to external force, the water outlet connects the inside and outside of the filter cavity.

7. The filter element mechanism according to claim 6, characterized in that, The sealing component includes: The connecting rod is at least partially located inside the outlet and extends along the first direction; A blocking block is connected to the connecting rod and located on the side of the outlet facing the filter cavity. When the blocking block abuts against the wall of the first protrusion on the side facing the filter cavity, it blocks the outlet. When the blocking block is away from the first protrusion, the outlet connects the inside and outside of the filter cavity. An elastic element is sleeved on the connecting rod, and the elastic element is used to drive the sealing block closer to the first boss.

8. The filter element mechanism according to claim 1, characterized in that, The timer includes a dial and a pointer. The dial is mounted on the side of the top plate away from the filter chamber, and the pointer is rotatably connected to the top plate.

9. The filter element mechanism according to claim 1, characterized in that, Also includes: A handle is installed on the side of the top plate opposite to the filter cavity.

10. A water tank, characterized in that, The device includes a housing and a filter element mechanism as described in any one of claims 1-9. The housing has a receiving cavity for accommodating the filter element mechanism, and the housing has a plurality of second snap-fit ​​portions on the side facing the receiving cavity that are aligned with the first snap-fit ​​slot.

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