Clamping device capable of easily replacing water purification filter element

By designing an easy-to-replace snap-fit ​​device, and using a pressure bar and inclined groove structure to simplify the installation and removal steps of the filter element, the problem of complicated filter element replacement in water purifiers is solved, and a convenient and efficient filter element replacement process is achieved.

CN223969619UActive Publication Date: 2026-03-06NINGBO ZHENYU ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520542661.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-03-06
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

The existing water purifier filter cartridges have a complex fixing structure, which makes filter cartridge replacement difficult, may damage the filter cartridge or the water purifier, and is inconvenient to operate.

Method used

Design an easy-to-replace snap-fit ​​device that uses a pressure rod, inclined through groove and limiting inclined groove structure to unlock and fix the filter element, simplifying the operation steps. The filter element can be easily replaced through the cooperation of snap-fit ​​bracket and snap fastener.

Benefits of technology

It reduces the difficulty and time cost of filter replacement, improves user experience, ensures the efficiency and safety of the replacement process, and avoids filter damage or water purifier leakage caused by improper operation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223969619U_ABST
    Figure CN223969619U_ABST
Patent Text Reader

Abstract

The utility model discloses a clamping device easy to replace a water purification filter element, which comprises a fixing plate, a support base is fixedly connected onto the fixing plate, a through hole is arranged on the outer wall of one side of the support base, a clamping support is sleeved on the support base, a fixing buckle is arranged at the position of the clamping support corresponding to the through hole, and the fixing buckle is sleeved in the through hole. A guide seat is arranged on the outer wall of one side of the clamping bracket; the clamping support is driven to move towards one side through the pressing rod, the inclined face through groove and the limiting inclined groove structure, the fixing buckle on the clamping support retreats from the support base, the buckle piece is jacked to rotate through the clamping column, the purpose of unlocking the filter element is achieved, the structure is simple, the difficulty and complexity when a user installs or replaces the filter element are greatly reduced, and the user experience is improved. Compared with the prior art, the filter element can be easily replaced without professional tools or complex steps, the user experience is greatly improved, the time required for replacing the filter element is effectively shortened, and the whole maintenance process becomes more efficient and worry-saving.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, and in particular to a snap-fit ​​device for easy replacement of water purifier filter cartridges. Background Technology

[0002] A water purifier is a device specifically designed to purify water, removing impurities and harmful substances and improving its taste and appearance. Through physical, chemical, or biological treatment processes, water purifiers remove contaminants from tap water or other water sources, providing cleaner and safer drinking water. As a key component of a water purifier, the filter cartridge has a limited lifespan. Therefore, regularly replacing the filter cartridge is crucial to maintaining the purifier's high-efficiency filtration performance, preventing filter clogging or failure, and avoiding potential secondary pollution.

[0003] Currently, the filter cartridge fixing structure of water purifiers on the market is usually quite complex, which undoubtedly brings inconvenience to daily filter replacement. The complex structure may require users to use specific tools or follow complicated procedures to complete the removal or installation of the filter cartridge. This design not only increases the difficulty and time cost for users, but may also lead to problems such as filter cartridge damage or water purifier leaks due to improper operation. Utility Model Content

[0004] The purpose of this invention is to provide a snap-fit ​​device for easy replacement of water purifier filter cartridges, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a snap-fit ​​device for easy replacement of water purification filter cartridges, including a fixing plate, a bracket base fixedly connected to the fixing plate, a through hole opened on one side outer wall of the bracket base, a snap-fit ​​bracket sleeved on the bracket base, a fixing buckle provided on the snap-fit ​​bracket at the position corresponding to the through hole, and the fixing buckle sleeved in the through hole, a guide seat provided on one side outer wall of the snap-fit ​​bracket, a sloping through groove opened on the guide seat, a limiting groove opened downward in the middle of the sloping through groove, a pressure rod provided in the sloping through groove, a limiting block provided at the end of the pressure rod, and the limiting block placed in the limiting groove.

[0006] As a further technical solution of this utility model, a filter element body is fixedly connected inside the bracket base, and a locking block is provided on the outer walls of both sides of the filter element body, and the fixing buckle is locked onto the locking block.

[0007] As a further technical solution of this utility model, a protective cover is fitted onto the filter element body, and a limit buckle is fixedly connected to one side of the outer wall of the protective cover, and the limit buckle is fitted onto the pressure rod.

[0008] As a further technical solution of this utility model, a fixing frame is provided on one outer wall of the bracket base. A spring 25 is fixedly connected to the fixing frame 10. The other end of the spring 25 is fixedly connected to the buckle 11. A buckle is rotatably connected inside the fixing frame. A rotating shaft is sleeved on the buckle and the rotating shaft is fixedly connected to the fixing frame. The buckle is snapped onto the buckle block. A buckle post is provided at the bottom of the buckle. The buckle post is placed in a buckle groove provided at one end of the buckle bracket.

[0009] As a further technical solution of this utility model, a water channel plate is fixedly connected to the lower surface of the fixing plate, and a housing is fixedly connected to the water channel plate. The lower surface of the water channel plate is provided with inlet and outlet water connectors.

[0010] As a further technical solution of this utility model, a first fixing seat is provided on the outer wall of the bracket base.

[0011] As a further technical solution of this utility model, a second fixing seat is provided on the outer wall of the protective cover.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model has a novel snap-fit ​​structure. The snap-fit ​​bracket is moved to one side by the pressure rod, the inclined through groove and the limiting inclined groove structure, so that the fixed buckle on it is disengaged from the bracket base. The buckle is rotated by the snap pin, so as to unlock the filter element. Its structure is simple and easy to operate, which greatly reduces the difficulty and complexity for users when installing or replacing the filter element. The filter element can be easily replaced without the need for professional tools or complicated steps, which greatly improves the user experience, effectively shortens the time required for filter element replacement, and makes the whole maintenance process more efficient and worry-free. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0016] Figure 3 This is an exploded view of the snap-fit ​​structure of this utility model;

[0017] Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle;

[0018] Figure 5 This is a three-dimensional structural diagram of the snap-fit ​​bracket of this utility model.

[0019] In the diagram: 1. Outer shell; 2. Water circuit board; 3. Fixing plate; 4. Snap-fit ​​bracket; 5. Guide seat; 6. Angled through groove; 7. Fixing buckle; 8. Bracket base; 9. Through hole; 10. Fixing frame; 11. Snap-fit ​​component; 12. Snap groove; 13. Rotating shaft; 14. First fixing seat; 15. Filter element body; 16. Snap block; 17. Protective cover; 18. Second fixing seat; 19. Limit buckle; 20. Pressure rod; 21. Inlet / outlet water connector; 22. Snap post; 23. Limiting inclined groove; 24. Limiting block; 25. Spring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see the appendix Figure 1 -Appendix Figure 5This utility model provides an embodiment of a snap-fit ​​device for easy replacement of water purifier filter cartridges, including a fixing plate 3, a bracket base 8 fixedly connected to the fixing plate 3, a through hole 9 on one outer wall of the bracket base 8, a snap-fit ​​bracket 4 sleeved on the bracket base 8, a fixing buckle 7 provided on the snap-fit ​​bracket 4 at the position corresponding to the through hole 9, and the fixing buckle 7 sleeved in the through hole 9, a guide seat 5 provided on one outer wall of the snap-fit ​​bracket 4, a sloping through groove 6 provided on the guide seat 5, a limiting sloping groove 23 provided downward in the middle of the sloping through groove 6, and a pressure rod 20 provided in the sloping through groove 6. The end of the pressure rod 20 is provided with a limiting block 24, which is placed in the limiting inclined groove 23. A filter element body 15 is fixedly connected inside the bracket base 8. The outer walls on both sides of the filter element body 15 are provided with locking blocks 16, and the fixing buckle 7 is engaged with the locking blocks 16. The locking blocks 16 are used to cooperate with the fixing buckle 7 and the locking piece 11 to achieve the purpose of fixing the filter element body 15. A protective cover 17 is sleeved on the filter element body 15. A limiting buckle 19 is fixedly connected to one outer wall of the protective cover 17, and the limiting buckle 19 is sleeved on the pressure rod 20. The protective cover 17 is used to protect the internal filter element body 15 and limit the movement of the filter element body 15. Buckle 19 is used to limit the movement of pressure rod 20; a fixed frame 10 is provided on one outer wall of the bracket base 8, and a spring 25 is fixedly connected to the fixed frame 10. The other end of the spring 25 is fixedly connected to the buckle 11. The buckle 11 is rotatably connected inside the fixed frame 10. A rotating shaft 13 is sleeved on the buckle 11 and fixedly connected to the fixed frame 10. The buckle 11 is snapped into the buckle block 16. A buckle post 22 is provided at the bottom of the buckle 11. The buckle post 22 is placed in the buckle groove 12 provided at one end of the buckle bracket 4. The buckle post 22 is used to drive the buckle 11 when the buckle bracket 4 moves. 1. Rotate outward around the pivot 13 to move away from the locking block 16; at the same time, compress the spring 25 and wait for reset. The lower surface of the fixing plate 3 is fixedly connected to the water channel plate 2, and the outer shell 1 is fixedly connected to the water channel plate 2. The lower surface of the water channel plate 2 is provided with inlet and outlet water connectors 21. The water channel plate 2 is used to guide, distribute and control the water flow, and the inlet and outlet water connectors 21 are used to connect the inlet and outlet water system. The outer wall of the bracket base 8 is provided with a first fixing seat 14, which is used to fix the bracket base 8. The outer wall of the protective cover 17 is provided with a second fixing seat 18, which is used to fix the protective cover 17.

[0022] Working principle: When replacing the filter element body 15 using this utility model, first open the outer shell 1, press down the pressure rod 20. The pressure rod 20 moves downward along the limiting buckle 19 on the protective cover 17 of the fixing plate 3 and enters the inclined groove 6 on the guide seat 5. Under the action of the inclined groove 6, the clamping bracket 4 moves to one side. The limiting block 24 at the end of the pressure rod 20 enters the limiting inclined groove 23, causing the fixing buckle 7 on it to leave the through hole 9 on the bracket base 8. At the same time, during the process of the clamping bracket 4 moving to one side, it pushes the locking post 22, thereby causing the locking piece 11 to rotate outward around the rotating shaft 13 and leave the locking block 16. The spring 25 on the frame 10 is compressed, which unlocks the filter body 15. After the filter body 15 is removed and replaced with a new filter body 15, the spring 25 resets the clip bracket 4 back to its original position, the clip post 22 returns to its original position, the clip bracket 4 returns to its original position, and the fixing buckle 7 and the clip 11 reset and re-clamp the clip block 16 on the filter body 15 to fix the filter body 15. The water circuit plate 2 is used to guide, distribute and control the water flow, the first fixing seat 14 is used to fix the bracket base 8, the second fixing seat 18 is used to fix the protective cover 17, and the inlet and outlet water connector 21 is used to connect the inlet and outlet water system.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A snap connection device for easily replacing a water purification filter cartridge, comprising a fixing plate (3), characterized in that: The fixed plate (3) is fixedly connected with a support base (8), a through hole (9) is formed in the outer wall of one side of the support base (8), a clamping support (4) is sleeved on the support base (8), a fixed buckle (7) is arranged at the position corresponding to the through hole (9) of the clamping support (4), the fixed buckle (7) is sleeved in the through hole (9), a guide seat (5) is arranged on the outer wall of one side of the clamping support (4), an inclined slot (6) is formed in the guide seat (5), a limiting inclined slot (23) is formed in the middle of the inclined slot (6), a pressing rod (20) is arranged in the inclined slot (6), a limiting block (24) is arranged at the end of the pressing rod (20), and the limiting block (24) is arranged in the limiting inclined slot (23).

2. The snap connection of claim 1, wherein: The support base (8) is fixedly connected with a filter core body (15), clamping blocks (16) are arranged on the outer walls of the two sides of the filter core body (15), and the fixed buckle (7) is clamped on the clamping blocks (16).

3. The snap connection of claim 2, wherein: The filter core body (15) is sleeved with a protective cover (17), a limiting buckle (19) is fixedly connected to the outer wall of one side of the protective cover (17), and the limiting buckle (19) is sleeved on the pressing rod (20).

4. The snap connection of claim 1, wherein: A fixed frame (10) is arranged on the outer wall of one side of the support base (8), a spring (25) is fixedly connected to the fixed frame (10), the other end of the spring (25) is fixedly connected to a buckle piece (11), the buckle piece (11) is rotatably connected in the fixed frame (10), a rotating shaft (13) is sleeved on the buckle piece (11), and the rotating shaft (13) is fixedly connected to the fixed frame (10), the buckle piece (11) is clamped on the clamping block (16), a clamping column (22) is arranged at the bottom of the buckle piece (11), and the clamping column (22) is arranged in a clamping groove (12) arranged at one end of the clamping support (4).

5. The snap connection of claim 1, wherein: The lower surface of the fixed plate (3) is fixedly connected with a waterway plate (2), the waterway plate (2) is fixedly connected with a shell (1), and the lower surface of the waterway plate (2) is provided with a water inlet and outlet connector (21).

6. The snap connection of claim 4, wherein: A first fixing seat (14) is arranged on the outer wall of the support base (8).

7. The snap connection of claim 3, wherein: A second fixing seat (18) is arranged on the outer wall of the protective cover (17).