A filter screen and drain convenient to clean

By designing a flexible detachable filter screen structure and using a flap and switch assembly, the problem of difficult cleaning of traditional filter screens is solved, enabling convenient disassembly and efficient cleaning.

CN224931146UActive Publication Date: 2026-11-03XIAMEN DICHUANG MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202522695041.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-12-19
Publication Date
2026-11-03
Estimated Expiration
2035-12-19

AI Technical Summary

Technical Problem

Traditional drain filters have a closed design, making them difficult to clean, especially after they trap hair, fibers, and other tangled debris.

Method used

Design a flexible detachable water filter structure, using a flap and a switch assembly. The flap is installed by hinge and locked or unlocked by the switch assembly, making it easy to disassemble and clean.

Benefits of technology

It enables easy disassembly and cleaning of the water filter screen, avoids cleaning dead corners, and improves the cleanliness of the cleaning process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a filter water net and water drainer convenient to clean, including filter screen main part, flap and switch assembly. Filter screen main part is tubular, and the water inlet and the open mouth are wrapped. The flap sets up at the bottom of filter screen main part, and one end is articulated with filter screen main part, and the flap is closed or opens the open mouth of filter screen main part through swing. The switch assembly sets up between filter screen main part and flap, and includes movable element and operating element, and the movable element is movably installed in filter screen main part, and is equipped with the limiting portion to the flap, and the limiting portion forms the locking state to the flap under the open mouth state of flap, and the operating element releases the flap through the unlocking operation and drives the limiting portion of movable element. The filter water net provided by the utility model provides the convenience for cleaning, and the dead angle of cleaning is not easy to exist, and dirt is not easy to hide, and the cleaning degree of cleaning can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of kitchen and bathroom technology, and in particular to a water filter and drain that are easy to clean. Background Technology

[0002] Currently, kitchen and bathroom drains such as sinks and washbasins are generally equipped with filters to trap debris and prevent pipe blockage. However, traditional drain filters often use a fixed, one-piece structure with a closed design, leaving internal corners prone to accumulating dirt and grime. Cleaning is particularly difficult after trapping tangled debris like hair and fibers, often requiring repeated scrubbing with tools. Therefore, there is an urgent need for a removable, movable filter structure with an openable base to solve the problem of inconvenient cleaning. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model proposes a water filter structure that is flexibly detachable and easy to clean.

[0004] Firstly, a water filter screen that is easy to clean is provided, comprising a filter screen body, a flap, and a switch assembly, wherein, The filter body is tubular, with an inlet at the top and an open opening at the bottom.

[0005] The flap is located at the bottom of the filter body and is hinged to the filter body at one end. The flap can block or open the opening of the filter body by swinging, and is used in water filtration and filter cleaning scenarios respectively.

[0006] The switch assembly is disposed between the filter body and the flap, and includes a movable part and an operating part. The movable part is movably installed inside the filter body and has a limiting part facing the flap. The limiting part locks the flap in the open state when the flap is blocked, thereby preventing the flap from separating from the open state of the filter body. The operating part is movably installed on the filter body. The operating part releases the flap by driving the limiting part of the movable part through an unlocking operation. Thus, when needed, the user can release the flap and open the open state through the switch assembly.

[0007] The water filter screen provided by this utility model has an openable and closable assembly structure for its flap, and is equipped with a switch component to restrict the opening and closing state of the flap. Thus, during cleaning, the bottom of the water filter screen can be opened, which on the one hand facilitates cleaning, and on the other hand, makes it less likely to have cleaning dead corners and dirt to accumulate, thereby improving the cleanliness of the cleaning.

[0008] Preferably, the movable component is slidably or rotatably installed inside the filter body, while the operating component is slidably or rotatably installed on the filter body, and is linked to the movable component by pressing or rotating.

[0009] Preferably, the limiting part is a limiting hook, and the flap has a limiting opening. In the locked state, the limiting hook passes through and hooks into the limiting opening, resulting in a simple structure and good limiting effect. The switch assembly also includes a return spring, which provides elastic force for the limiting hook to lock the limiting opening, preventing the limiting hook from automatically disengaging. When unlocking is required, the limiting hook is further inserted into the limiting opening through a movable part to release the limiting opening, or the limiting hook is released by swinging in the limiting opening, thereby allowing the flap to separate from the open opening of the filter body.

[0010] Preferably, to provide an installation position for the switch assembly, the filter body is provided with a mounting base, the movable part is movably installed in the mounting base, and the limiting part protrudes from the bottom of the mounting base. The operating part is movably installed on the upper part of the mounting base and is exposed, allowing the user to unlock and operate it.

[0011] Preferably, the main body of the mounting base is columnar, with a receiving cavity at the bottom and an end mounting groove at the top, and the receiving cavity and the mounting groove are connected by a constriction hole. The movable member is telescopically installed within the receiving cavity, with its top extending into the end mounting groove, and a limiting rod extending downward along the periphery of the receiving cavity and protruding from the bottom edge, the limiting part being located at the bottom end of the limiting rod. The operating member is a button, movably installed in the end mounting groove and engaging with the top of the movable member. The return spring is compressed and installed in the end mounting groove, providing elastic force for the button and the movable member to move to their extreme positions and form a locked state. The button, when pressed, causes the movable member and the limiting hook to move downward, releasing the limiting port and thus unlocking.

[0012] Preferably, the main body of the mounting base is columnar, with a receiving cavity at the bottom and a side mounting groove on the top side, the receiving cavity and the side mounting groove communicating with each other. The movable component is generally Z-shaped, with its middle part swinging within the receiving cavity via a horizontal pivot, its top being a pressing rod extending into the side mounting groove, and its bottom being a limiting rod protruding from the bottom opening of the receiving cavity. The limiting hook is located at the bottom end of the limiting rod. The operating component is a button, movably mounted in the side mounting groove and engaging with the end of the pressing rod. The return spring is compressed and mounted in the side mounting groove, providing elastic force for the button and movable component to move to their extreme positions and form a locked state. Pressing the button causes the movable component and the limiting hook to swing, releasing the limiting opening and thus unlocking the device.

[0013] Preferably, the movable part and the operating part are integrally formed. The filter body also includes a mounting bracket with a mounting port. The movable part is pre-swinged and mounted on the mounting port of the mounting bracket. The mounting bracket is installed in the receiving cavity through an inverted structure. The top of the mounting bracket is provided with a side plate extending into the side mounting groove. The side plate is spaced opposite to the button. The return spring is compressed and installed between the side plate and the button. The inverted structure is located between the side plate away from the button and the side mounting groove. The side wall of the side mounting groove is also provided with a disassembly hole aligned with the inverted structure. During disassembly, a rod-shaped tool can be inserted through the disassembly hole and pushed against the inverted structure to remove the mounting bracket from the mounting base.

[0014] Preferably, the flap is provided with a clearance opening, and the clearance opening is connected to the bottom opening of the receiving cavity when the flap is in the state of blocking the open opening, so that the top of the bouncing mechanism can be inserted into the bottom of the receiving cavity, thereby realizing the assembly of the water filter and the bouncing mechanism.

[0015] Preferably, the bottom surface of the flap is provided with a protrusion, at least one of which allows the user to press the protrusion to push the flap closed.

[0016] Preferably, the filter body has peripheral water filtration holes on its periphery. The peripheral water filtration holes are strip-shaped and open on one side, communicating with the open opening. During washing, hair wrapped around the peripheral water filtration holes can be directly removed from top to bottom. And / or, the flap has bottom water filtration holes. The bottom water filtration holes are strip-shaped and open on one side, with the open end away from the hinged end of the flap. During washing, hair wrapped around the bottom water filtration holes can be directly removed from one end to the other.

[0017] In a second aspect, a drain device is provided, comprising a spring-loaded mechanism and a water filter screen as described in the first aspect, wherein the spring-loaded mechanism is installed at the bottom of the water filter screen.

[0018] As can be seen from the above description of this utility model, this utility model has the following beneficial effects: The water filter screen provided by this utility model has an openable and closable movable assembly structure for its flap, and is equipped with a switch component to restrict the opening and closing state of the flap. Thus, during cleaning, the bottom of the water filter screen can be opened, which on the one hand facilitates cleaning, and on the other hand, it is not easy to have cleaning dead corners, not easy to hide dirt and grime, and can improve the cleanliness of cleaning. The limiting part is a limiting hook, and the flap is provided with a limiting opening. The structure is simple and the limiting effect is good. The limiting part can be unlocked by sliding or rotating, and the operating part can be linked with the moving part by sliding or rotating, which has a relatively flexible and varied design space. Attached Figure Description

[0019] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0020] in: Figure 1 An isometric view of a water filter screen that is easy to clean. Figure 1 ; Figure 2 An isometric view of a water filter screen that is easy to clean. Figure 2 ; Figure 3 A cross-section of a water filter screen that is easy to clean. Figure 1 ; Figure 4 A cross-section of a water filter screen that is easy to clean. Figure 2 ; Figure 5 An isometric view of a drain assembly Figure 1 ; Figure 6 A cross-section of a drain device Figure 1 ; Figure 7 An isometric view of a water filter screen that is easy to clean. Figure 3 ; Figure 8 An isometric view of a water filter screen that is easy to clean. Figure 4 ; Figure 9 An isometric view of a water filter screen that is easy to clean. Figure 5 ; Figure 10 A cross-section of a water filter screen that is easy to clean. Figure 3 ; Figure 11 A cross-section of a water filter screen that is easy to clean. Figure 4 ; Figure 12 An isometric view of a drain assembly Figure 2 ; Figure 13 A cross-section of a drain device Figure 2 ; Figures 1 to 13The markings are as follows: filter body 1, water inlet 11, open opening 12, mounting base 13, receiving cavity 131, end mounting groove 132, side mounting groove 133, disassembly hole 134, mounting bracket 14, side plate 141, peripheral filter hole 15, flap 2, limit port 21, clearance port 22, bottom filter hole 23, protrusion 24, switch assembly 3, moving part 31, limit part 311, limit rod 312, pressing rod 313, operating part 32, reset spring 33, and spring mechanism 4. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] Please see Figures 1 to 13 A water filter screen that is easy to clean includes a filter screen body 1, a flap 2, and a switch assembly 3, wherein, The filter body 1 is tubular, with an inlet 11 at the top and an open opening 12 at the bottom.

[0023] The flap 2 is located at the bottom of the filter body 1, and one end is hinged to the filter body 1. The flap 2 can be opened or closed by swinging to seal or open the opening 12 of the filter body 1, respectively, for use in water filtration and filter cleaning scenarios. Preferably, the bottom surface of the flap 2 is provided with a protrusion 24, at least one of which can be pressed by the user to push the flap closed.

[0024] The switch assembly 3 is disposed between the filter body 1 and the flap 2, and includes a movable part 31 and an operating part 32. The movable part 31 is movably installed inside the filter body 1 and has a limiting part 311 facing the flap 2. The limiting part 311 locks the flap 2 in the state where the flap 2 blocks the opening 12, thereby preventing the flap 2 from separating from the opening 12 of the filter body 1. The operating part 32 is movably installed on the filter body 1. The operating part 32 releases the flap 2 by driving the limiting part 311 of the movable part 31 through the unlocking operation. Thus, when needed, the user can release the flap 2 and open the opening 12 through the switch assembly 3.

[0025] Optionally, the movable part 31 is slidably or rotatably installed inside the filter body 1, while the operating part 32 is slidably or rotatably installed on the filter body 1, and is linked to the movable part 31 by pressing or rotating.

[0026] In one embodiment, the limiting part 311 is a limiting hook, and the flap 2 is provided with a limiting opening 21. In the locked state, the limiting hook passes through and hooks the limiting opening 21, which has a simple structure and good limiting effect. The switch assembly 3 also includes a return spring 33, which provides elastic force for the limiting hook to lock the limiting opening 21, preventing the limiting hook from automatically disengaging. When unlocking is required, the limiting hook is further inserted into the limiting opening 21 through the movable part 31 to release the limiting opening 21, or the limiting hook is released by swinging the limiting opening 21, so that the flap 2 can be separated from the open opening 12 of the filter body 1.

[0027] Furthermore, to provide an installation position for the switch assembly 3, a mounting base 13 is provided inside the filter body 1. The movable part 31 is movably installed inside the mounting base 13, and the limiting part 311 protrudes from the bottom of the mounting base 13. The operating part 32 is movably installed on the upper part of the mounting base 13 and is exposed, allowing the user to unlock it.

[0028] Please see Figures 1 to 6 Based on the above embodiment, the main body of the mounting base 13 is columnar, with a receiving cavity 131 at the bottom and an end mounting groove 132 at the top, and the receiving cavity 131 and the mounting groove are connected by a constriction hole. The movable member 31 is telescopically installed in the receiving cavity 131, and its top extends into the end mounting groove 132, while the bottom edge is provided with a limiting rod 312 extending downward along the periphery of the receiving cavity 131 and protruding therefrom, and the limiting part 311 is located at the bottom end of the limiting rod 312. The operating member 32 is a button, which is movably installed in the end mounting groove 132 and docks with the top of the movable member 31. The return spring 33 is compressed and installed in the end mounting groove 132, and provides elastic force for the button and the movable member 31 to move to the limit position and form a locked state. The button, when pressed, drives the movable member 31 and the limiting hook to move down and releases the limiting port 21, thereby unlocking.

[0029] Alternatively, in other embodiments, please refer to Figures 7 to 13The main body of the mounting base 13 is columnar, with a receiving cavity 131 at the bottom and a side mounting groove 133 on the top side, the receiving cavity 131 and the side mounting groove 133 being connected. The movable part 31 is generally Z-shaped, with its middle part swinging within the receiving cavity 131 via a horizontal pivot. Its top is a pressing rod 313 extending into the side mounting groove 133, and its bottom is a limiting rod 312 protruding from the bottom opening of the receiving cavity 131. The limiting part 311 is located at the bottom end of the limiting rod 312. The operating part 32 is a button, movably mounted in the side mounting groove 133 and engaging with the end of the pressing rod 313. The return spring 33 is compressed within the side mounting groove 133, providing elastic force for the button and movable part 31 to move to their extreme positions and form a locked state. Pressing the button causes the movable part 31 and the limiting hook to swing, releasing the limiting port 21 and unlocking the device.

[0030] Optionally, the movable part 31 and the operating part 32 are integrally formed. The filter body 1 also includes a mounting bracket 14, which has a mounting port. The movable part 31 is pre-swinged and mounted on the mounting port of the mounting bracket 14. The mounting bracket 14 is mounted in the receiving cavity 131 by an inverted structure. The top of the mounting bracket 14 is provided with a side plate 141 extending into the side mounting groove 133. The side plate 141 is spaced opposite to the button. The return spring 33 is compressed and mounted between the side plate 141 and the button. The inverted structure is located between the side plate 141 away from the button and the side mounting groove 133. The side wall of the side mounting groove 133 is also provided with a disassembly hole 134 for aligning with the inverted structure. During disassembly, a rod-shaped tool can be inserted through the disassembly hole 134 and pushed against the inverted structure to remove the mounting bracket 14 from the mounting base 13.

[0031] In one embodiment, the flap 2 is provided with a clearance opening 22, and the clearance opening 22 is connected to the bottom opening of the receiving cavity 131 when the flap 2 blocks the open opening 12, so that the top of the bouncing mechanism 4 can be inserted into the bottom of the receiving cavity 131, thereby realizing the assembly of the water filter and the bouncing mechanism 4.

[0032] In one embodiment, the filter body 1 has peripheral water filter holes 15 around its periphery. The peripheral water filter holes 15 are strip-shaped and open on one side, communicating with the open opening 12. During washing, the hair wrapped around the peripheral water filter holes 15 can be directly removed from top to bottom. And / or, the flap 2 has bottom water filter holes 23. The bottom water filter holes 23 are strip-shaped and open on one side, with the open end away from the hinged end of the flap 2. During washing, the hair wrapped around the bottom water filter holes 23 can be directly removed from one end to the other.

[0033] In another embodiment, a drain device is provided, including a spring mechanism 4 and the aforementioned easy-to-clean filter screen, wherein the spring mechanism 4 is installed at the bottom of the filter screen.

[0034] The water filter screen provided by this utility model has an openable and closable movable assembly structure for its flap 2, and is equipped with a switch component 3, which can restrict the opening and closing state of the flap 2. Thus, during cleaning, the bottom of the water filter screen can be opened, which on the one hand facilitates cleaning, and on the other hand, it is not easy to have cleaning dead corners, not easy to hide dirt and grime, and can improve the cleanliness of cleaning.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly 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, an electrical connection, or a connection that allows communication between them; 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0039] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0040] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A water filter screen that is easy to clean, characterized in that, Includes the filter body, flap, and switch assembly; The filter screen body is tubular, with a water inlet at the top and an open opening at the bottom; The flap is located at the bottom of the filter body and is hinged to the filter body at one end. The flap can block or open the opening of the filter body by swinging. The switch assembly is disposed between the filter body and the flap, and includes a movable part and an operating part. The movable part is movably installed inside the filter body and has a limiting part facing the flap. The limiting part locks the flap when the flap is in the open state. The operating part is movably installed on the filter body. The operating part releases the flap by driving the limiting part of the movable part through an unlocking operation.

2. The easy-to-clean water filter screen according to claim 1, characterized in that, The movable component is slidably or rotatably installed inside the filter body, and the operating component is slidably or rotatably installed on the filter body, and is linked to the movable component by pressing or rotating.

3. The easy-to-clean water filter screen according to claim 1, characterized in that, The limiting part is a limiting hook, and the flap is provided with a limiting port. In the locked state, the limiting hook passes through and hooks the limiting port to fix the flap. The switch assembly also includes a reset spring, which provides elastic force for the limiting hook to lock the limiting port. The limiting hook is further inserted into the limiting port through a movable part to release the limiting port, or the limiting hook is released by swinging the limiting port.

4. A water filter screen that is easy to clean according to claim 3, characterized in that, The filter body is provided with a mounting base, the movable part is movably installed in the mounting base, and the limiting part protrudes from the bottom of the mounting base; the operating part is movably installed on the upper part of the mounting base and protrudes.

5. A water filter screen that is easy to clean according to claim 4, characterized in that, The main body of the mounting base is columnar, with a receiving cavity at the bottom and an end mounting groove at the top, and the receiving cavity and the mounting groove are connected by a constriction hole; the movable part is telescopically installed in the receiving cavity, and its top extends into the end mounting groove, while the bottom edge has a limiting rod extending downward along the periphery of the receiving cavity and protruding therefrom, and the limiting hook is located at the bottom end of the limiting rod; the operating part is a button, which is movably installed in the end mounting groove and docks with the top of the movable part; the return spring is compressed and installed in the end mounting groove, and provides elastic force for the button and the movable part to move to the limit position and form a locked state; the button, when pressed, drives the movable part and its limiting hook to move downward and releases the limiting port.

6. A water filter screen that is easy to clean according to claim 4, characterized in that, The main body of the mounting base is columnar, with a receiving cavity at the bottom and a side mounting groove on the top side, the receiving cavity and the side mounting groove being connected; the movable part is generally Z-shaped, with the middle part swinging and mounted in the receiving cavity via a horizontal pivot, the top being a pressing rod extending into the side mounting groove, and the bottom being a limiting rod protruding from the bottom opening of the receiving cavity, the limiting part being located at the bottom end of the limiting rod; the operating part is a button, movably mounted in the side mounting groove and engaging with the end of the pressing rod; the return spring is compressed and mounted in the side mounting groove, providing elastic force for the button and movable part to move to the limit position and form a locked state; the button, when pressed, drives the movable part and the limiting hook to swing, and releases the limiting port.

7. A water filter screen that is easy to clean according to claim 6, characterized in that, The movable part and the operating part are integrally formed; the filter body also includes a mounting bracket, the mounting bracket is provided with a mounting port, the movable part is pre-swung and installed on the mounting port of the mounting bracket, the mounting bracket is installed in the receiving cavity through an inverted structure, and the top of the mounting bracket is provided with a side plate extending into the side mounting groove, the side plate is spaced opposite to the button, the return spring is compressed and installed between the side plate and the button, the inverted structure is provided between the side of the side plate away from the button and the side mounting groove, and the side wall of the side mounting groove is also provided with a disassembly hole for aligning the inverted structure.

8. A water filter screen that is easy to clean according to claim 5 or 6, characterized in that, The flap is provided with a clearance opening, and the clearance opening is connected to the bottom opening of the receiving cavity when the flap is in the state of blocking the open opening; the bottom surface of the flap is provided with a protrusion, and there is at least one protrusion.

9. A water filter screen that is easy to clean according to claim 1, characterized in that, The filter body has peripheral water filtration holes on its periphery. The peripheral water filtration holes are strip-shaped and open on one side, communicating with the open opening. And / or, the flap has bottom water filtration holes. The bottom water filtration holes are strip-shaped and open on one side, with the open end away from the end of the flap that is hinged to it.

10. A drain device, characterized in that, It includes a bouncy mechanism and a water filter screen that is easy to clean as described in any one of claims 1 to 9, wherein the bouncy mechanism is installed at the bottom of the water filter screen.