A water purifier with a double snap-fit ​​structure

By adopting a double-clamp structure and locking mechanism in the water purifier, the problem of filter cartridges loosening under water flow impact is solved, achieving stable connection and easy installation of the filter cartridges, and improving the operational reliability and filtration effect of the water purifier.

CN224422200UActive Publication Date: 2026-06-30FO SHAN HANHUA FILTER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FO SHAN HANHUA FILTER CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

In traditional water purifiers, the filter cartridges are connected by a single snap-fit, which makes them prone to loosening under the impact of water flow, resulting in unstable connections and affecting the reliability and filtration effect of the water purifier.

Method used

It adopts a double-clamp structure, including a first clamp structure and a second clamp structure, combined with a locking component, which clamps the filter element to the upper and lower body at the top and bottom respectively, and restricts the rotation of the filter element by the locking component, thereby enhancing the connection stability.

Benefits of technology

It improves the efficiency of filter cartridge installation and removal, enhances the structural reliability of the water purifier, prevents filter cartridges from loosening and falling off, and ensures the stable operation and filtration effect of the water purifier.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a water purifier with a double-clamp structure, including a lower body, an upper body, a locking component, and multiple filter elements. The top of each filter element is engaged with the upper body via a first clamping structure, and the bottom of each filter element is engaged with the lower body via a second clamping structure. Rotating the filter element simultaneously engages or disengages the upper and lower bodies. The locking component engages with the bottoms of each filter element, restricting rotation of the filter elements around their own axes. By incorporating the first clamping structure, the second clamping structure, and the locking component, this utility model solves the problem in traditional water purifiers where filter elements are connected only by a single clamp, leading to easy loosening of the filter elements.
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Description

Technical Field

[0001] This utility model relates to the field of water purifier technology, specifically a water purifier with a double-clamp structure. Background Technology

[0002] A water purifier mainly consists of two parts: the filter cartridge and the main body. The filter cartridge, as the core component of the water purifier, undertakes the crucial tasks of filtering impurities and adsorbing harmful substances in the water. The main body provides the space for installing and supporting the filter cartridge, and also contains important components such as a water flow plate to guide water flow through the filter cartridge, thereby purifying the water.

[0003] Traditional water purifiers typically have a clip on the top of the unit, allowing the filter cartridge to be detachably installed. However, during operation, water flows through the filter cartridge at a certain speed and pressure, generating impact force. Because a single clip only provides basic fixation for the filter cartridge and lacks sufficient support and stability, the connection between the clip, the filter cartridge, and the unit gradually wears down and loosens under the continuous impact of the water flow. Utility Model Content

[0004] To address the aforementioned shortcomings, this utility model proposes a water purifier with a double-clamp structure. By setting a first clamp structure, a second clamp structure, and a locking component, it can solve the problem that in traditional water purifiers, the filter element is connected using only a single clamp, which makes the filter element prone to loosening.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A water purifier with a double-clamp structure includes a lower body, an upper body, a locking component, and multiple filter cartridges. The top of each filter cartridge is interlocked with the upper body via a first clamping structure, and the bottom of each filter cartridge is interlocked with the lower body via a second clamping structure. Rotating the filter cartridge simultaneously engages or disengages the upper body and the lower body.

[0007] The locking member engages with the bottom of the plurality of filter elements respectively. When the locking member engages with the bottom of the plurality of filter elements respectively, the rotation of the plurality of filter elements around their own axis is restricted.

[0008] The first snap-fit ​​structure includes a first snap-fit ​​component, which is fixedly installed on the upper body. The first snap-fit ​​component has multiple first snap-fit ​​slots arranged side by side, and the first snap-fit ​​slots vertically penetrate the top and bottom of the first snap-fit ​​component.

[0009] The top of the filter element is engaged with the first snap-fit ​​groove, and the plurality of filter elements correspond one-to-one with the plurality of the first snap-fit ​​grooves.

[0010] Two first snap-fit ​​blocks are provided around the top periphery of the filter element, and the two first snap-fit ​​blocks are positioned opposite each other on both sides of the filter element;

[0011] The first buckle structure also includes a first buckle limiting block. Two first buckle limiting blocks are provided on the inner wall of the first buckle groove. A gap is provided between the two ends of the two first buckle limiting blocks. The gap is an active channel for the first buckle block to move in the vertical direction.

[0012] When the top of the first latching limiting block abuts against the bottom of the first latching block, the top of the filter element is lifted vertically upward by the first latching component, while its movement is restricted in the horizontal plane.

[0013] The first buckle limiting block includes a guide part, a connecting part and an abutting part in sequence. The connecting part connects the guide part and the abutting part. The bottom of the connecting part and the bottom of the guide part are flush with the bottom of the first buckle groove, and the top of the abutting part is flush with the top of the first buckle groove.

[0014] The gap between the top wall of the guide portion and the bottom wall of the adjacent abutting portion is the movable channel of the first snap-fit ​​block;

[0015] The top wall of the connecting part and the side wall of the abutting part form the snapping space of the first snapping block. The side wall of the first snapping block abuts against the side wall of the abutting part, and the bottom of the first snapping block abuts against the top of the connecting part.

[0016] The top of the connecting part is provided with a protruding part, and the bottom of the first snap-fit ​​block is provided with a recessed part. The protruding part and the recessed part are arranged opposite to each other and snap-fit ​​each other.

[0017] The bottom of the filter element is provided with two second snap-fit ​​blocks, which are arranged opposite to each other;

[0018] The second snap-fit ​​structure includes an arc-shaped snap-fit ​​block; the lower body is provided with a plurality of receiving slots, which are arranged side by side and correspond one-to-one with the filter element; the bottom of the receiving slot is provided with two second snap-fit ​​slots, which are arranged opposite to each other, and the second snap-fit ​​slots are interconnected with the receiving slots, and the bottom of the second snap-fit ​​slots are connected to the outside.

[0019] The bottom of the lower body is provided with two third buckle slots, which are connected to the second buckle slots. The bottom of the third buckle slots is connected to the outside. The arc-shaped buckle block is detachably installed in the third buckle slot.

[0020] The top wall of the arc-shaped locking block abuts against the bottom wall of the second locking block, and the top wall of the second locking groove abuts against the top wall of the second locking block.

[0021] The top of the second snap-fit ​​groove includes an arc-shaped portion, a horizontal portion, and a vertical portion. The arc-shaped portion smoothly connects the bottom wall of the lower body and the horizontal portion. The vertical portion vertically connects the bottom of the lower body and the horizontal portion. The third snap-fit ​​groove is located at the end of the second snap-fit ​​groove near the vertical portion.

[0022] The bottom of the filter element is provided with a handle; when all the filter elements are installed, the length directions of the multiple handles are parallel to each other and located on the same horizontal line;

[0023] The locking component is provided with multiple parallel limiting holes, which are engaged with the handles, and the multiple limiting holes correspond one-to-one with the multiple handles.

[0024] The locking member has inwardly recessed gripping portions on both sides.

[0025] The sidewalls of the limiting holes located on both sides are connected to the outside.

[0026] The technical solution of this utility model can include the following beneficial effects:

[0027] 1. Rotating the filter element allows for simultaneous connection or disconnection of the upper and lower body, simplifying the installation and disassembly process. No complicated steps are required; simply rotating the filter element connects or separates it from the upper and lower body, greatly improving installation and disassembly efficiency and saving users time and effort.

[0028] 2. The locking mechanism engages with multiple filter cartridges simultaneously, restricting their rotation and further enhancing their stability. During operation, the water purifier may be affected by factors such as water flow impact and equipment vibration. The locking mechanism prevents individual filter cartridges from rotating due to external forces, thereby improving the overall reliability of the water purifier structure. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a water purifier according to one embodiment of the present invention;

[0030] Figure 2 This is an exploded view of a water purifier according to one embodiment of this utility model;

[0031] Figure 3 This is a schematic diagram of the first snap-fit ​​component according to one embodiment of the present utility model;

[0032] Figure 4 yes Figure 2 Enlarged view of point A in the middle;

[0033] Figure 5 This is a schematic diagram of a filter element according to one embodiment of this utility model;

[0034] The components are as follows: 1. Lower body; 11. Second latching block; 12. Arc-shaped latching block; 13. Receiving groove; 14. Second latching groove; 15. Third latching groove; 16. Arc-shaped part; 17. Horizontal part; 18. Vertical part; 2. Upper body; 21. First latching component; 22. First latching groove; 23. First latching block; 24. First latching limiting block; 25. Guide part; 26. Connecting part; 27. Abutting part; 28. Protruding part; 29. ​​Recessed part; 3. Locking component; 31. Limiting hole; 32. Grip part; 4. Filter element; 41. Handle. Detailed Implementation

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.

[0037] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" 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 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.

[0039] The following is combined Figures 1 to 5 This describes a water purifier with a double-clamp structure according to an embodiment of the present invention.

[0040] A water purifier with a double-clamp structure includes a lower body 1, an upper body 2, a locking component 3, and multiple filter elements 4. The top of each filter element 4 is interlocked with the upper body 2 via a first clamping structure, and the bottom of each filter element 4 is interlocked with the lower body 1 via a second clamping structure. Rotating the filter element 4 simultaneously clamps and fixes or separates the upper body 2 and the lower body 1.

[0041] The locking member 3 is engaged with the bottom of the plurality of filter elements 4 respectively. When the locking member is engaged with the bottom of the plurality of filter elements 4 respectively, the rotation of the plurality of filter elements 4 around their own axis is restricted.

[0042] The filter element 4 is connected to the upper body 2 using a first snap-fit ​​structure and to the lower body 1 using a second snap-fit ​​structure, forming a double snap-fit ​​fixing method. This enhances the connection stability between the filter element 4 and the body, effectively preventing problems such as loosening or falling off during use, ensuring the water purifier can operate stably and guaranteeing the filtration effect.

[0043] Moreover, rotating the filter element 4 can simultaneously connect or disconnect the upper body 2 and the lower body 1, making the installation and disassembly process of the filter element 4 simpler. No complicated operating steps are required; simply rotating the filter element 4 is enough to connect or separate it from the upper body 2 and the lower body 1, greatly improving the efficiency of installation and disassembly and saving users time and effort.

[0044] Furthermore, the locking element 3 simultaneously engages with multiple filter elements 4, restricting their rotation and further enhancing their stability. During operation, the water purifier may be affected by factors such as water flow impact and equipment vibration. The presence of the locking element 3 prevents individual filter elements 4 from rotating due to external forces, thereby improving the overall reliability of the water purifier structure.

[0045] Therefore, by setting the first snap-fit ​​structure, the second snap-fit ​​structure and the locking element 3 in this application, the problem that the filter element in traditional water purifiers is easily loosened due to the filter element being connected by only a single snap-fit ​​is solved.

[0046] The first snap-fit ​​structure includes a first snap-fit ​​member 21, which is fixedly installed on the upper body 2. The first snap-fit ​​member 21 has a plurality of first snap-fit ​​slots 22 arranged side by side, and the first snap-fit ​​slots 22 vertically penetrate the top and bottom of the first snap-fit ​​member 21.

[0047] The top of the filter element 4 is engaged with the first snap-fit ​​groove 22, and the multiple filter elements 4 correspond one-to-one with the multiple first snap-fit ​​grooves 22.

[0048] Multiple first snap-fit ​​slots 22 are arranged side by side and vertically penetrate the top and bottom of the first snap-fit ​​member 21. The top of the filter element 4 is snapped into each of the first snap-fit ​​slots 22, ensuring that the multiple first snap-fit ​​slots 22 effectively wrap and fix the top of the corresponding filter element 4, making the connection between the filter element 4 and the upper body 2 more secure. During the operation of the water purifier, even if subjected to external forces such as water flow impact and equipment vibration, the filter element 4 can remain stable and is not prone to loosening or falling off, ensuring the normal operation and filtration effect of the water purifier.

[0049] Since each filter element 4 is precisely positioned and installed independently through the first snap-fit ​​groove 22, when a specific filter element 4 malfunctions, only that specific filter element 4 needs to be replaced, avoiding unnecessary component replacement and reducing material costs.

[0050] Two first snap-fit ​​blocks 23 are provided around the top periphery of the filter element 4, and the two first snap-fit ​​blocks 23 are arranged opposite each other on both sides of the filter element 4.

[0051] The first buckle structure also includes a first buckle limiting block 24. Two first buckle limiting blocks 24 are provided on the inner wall of the first buckle groove 22. A gap is provided between the two ends of the two first buckle limiting blocks 24. The gap is the movable channel for the first buckle block 23 to move in the vertical direction.

[0052] When the top of the first latching limit block 24 abuts against the bottom of the first latching block 23, the top of the filter element 4 is lifted vertically upward by the first latching member 21, while its movement is restricted in the horizontal plane.

[0053] When installing filter element 4, the user simply aligns the first snap-fit ​​block 23 on top of filter element 4 with the movable channel between the first snap-fit ​​limiting block 24 and inserts it. Then, the user rotates filter element 4 so that the side wall of the first snap-fit ​​limiting block 24 abuts against the side wall of the first snap-fit ​​block 23. This allows for quick and accurate installation of filter element 4, avoiding problems such as loose connection between filter element 4 and water circuit due to installation position deviations, thus improving installation quality and efficiency. Furthermore, the abutment between the top of the first snap-fit ​​limiting block 24 and the bottom of the first snap-fit ​​block 23 not only restricts the vertical movement of filter element 4 but also its horizontal movement, preventing filter element 4 from falling off due to gravity or water flow impact.

[0054] When filter element 4 needs to be replaced, the user simply rotates filter element 4 in the reverse direction to disengage the first locking block 23 from the first locking limit block 24, and then pulls filter element 4 out of the first locking slot 22. This operation method is simple and easy to understand, and even users without professional knowledge can easily replace filter element 4, improving the user experience.

[0055] The first latching limiting block 24 includes a guide part 25, a connecting part 26 and an abutting part 27 in sequence. The connecting part 26 connects the guide part 25 and the abutting part 27. The bottom of the connecting part 26 and the guide part 25 are flush with the bottom of the first latching groove 22, and the top of the abutting part 27 is flush with the top of the first latching groove 22.

[0056] The gap between the top wall of the guide portion 25 and the bottom wall of the adjacent abutment portion 27 is the movable channel of the first snap-fit ​​block 23;

[0057] The top wall of the connecting part 26 and the side wall of the abutting part 27 form the snapping space of the first snapping block 23. The side wall of the first snapping block 23 abuts against the side wall of the abutting part 27, and the bottom of the first snapping block 23 abuts against the top of the connecting part 26.

[0058] When installing the filter element 4, the guide part 25 provides guidance for the first snap-fit ​​block 23, making it easier for the first snap-fit ​​block 23 to enter the snap-fit ​​space along the movable channel. Even if there is a certain deviation in the filter element 4 during installation, the guide part 25 can guide it to the correct installation direction, which greatly improves the convenience and accuracy of filter element 4 installation and reduces the extension of installation time and installation errors caused by installation difficulties.

[0059] The sidewall of the first locking block 23 abuts against the sidewall of the abutment part 27, and its bottom abuts against the top of the connecting part 26, ensuring that the filter element 4 remains stable after installation and does not wobble in the horizontal or vertical directions. The sidewall of the abutment part 27 restricts the horizontal movement of the filter element 4, while the top of the connecting part 26 restricts the downward vertical movement of the filter element 4, ensuring a tight connection between the filter element 4 and the upper body 2, and improving the overall stability and reliability of the water purifier.

[0060] The top of the connecting part 26 is provided with a protruding part 28, and the bottom of the first snap-fit ​​block 23 is provided with a recessed part 29. The protruding part 28 and the recessed part 29 are arranged opposite to each other and snap-fit ​​each other.

[0061] The relative arrangement of the protruding part 28 and the recessed part 29 plays a crucial role in precise positioning during the installation of the filter element 4. When installing the filter element 4, the user simply aligns the recessed part 29 at the bottom of the first locking block 23 with the protruding part 28 at the top of the connecting part 26, allowing for quick and accurate installation of the filter element 4. This precise positioning reduces errors during installation, avoiding problems such as loose connections between the filter element 4 and the water circuit due to inaccurate installation, thus improving installation quality and efficiency.

[0062] In one embodiment, the protrusion 28 is preferably made of rubber material. The protrusion 28 has a certain elastic deformation capability, so when the user disassembles the filter element 4, he / she can clearly feel the separation process of the snap-fit ​​structure without causing damage to the protrusion 28, making the disassembly process of the filter element 4 smoother.

[0063] The bottom of the filter element 4 is provided with two second snap-fit ​​blocks 11, which are arranged opposite to each other;

[0064] The second snap-fit ​​structure includes an arc-shaped snap-fit ​​block 12; the lower body 1 is provided with a plurality of receiving slots 13, the receiving slots 13 are arranged side by side, and the receiving slots 13 correspond one-to-one with the filter element 4; the bottom of the receiving slot 13 is provided with two second snap-fit ​​slots 14, the two second snap-fit ​​slots 14 are arranged opposite to each other, the second snap-fit ​​slots 14 are interconnected with the receiving slots 13, and the bottom of the second snap-fit ​​slots 14 are connected to the outside.

[0065] The bottom of the lower body 1 is provided with two third buckle slots 15, the third buckle slots 15 are connected to the second buckle slots 14, the bottom of the third buckle slots 15 are connected to the outside, and the arc-shaped buckle block 12 is detachably installed in the third buckle slots 15.

[0066] The top wall of the arc-shaped locking block 12 abuts against the bottom wall of the second locking block 11, and the top wall of the second locking groove 14 abuts against the top wall of the second locking block 11.

[0067] When installing filter element 4, first place filter element 4 into receiving groove 13, allowing the second locking block 11 to enter the second snap-fit ​​groove 14, and then install the arc-shaped locking block 12 to complete the fixing of filter element 4; when disassembling, simply remove the arc-shaped locking block 12 to easily remove filter element 4 from receiving groove 13. This simplifies the installation and disassembly process of filter element 4, reduces the difficulty of operation, and can be easily completed even by users without professional knowledge.

[0068] The second locking block 11 abuts against the top wall of the second locking groove 14 and the top wall of the arc-shaped locking block 12, effectively preventing the filter element 4 from shifting in the vertical direction and ensuring the stability of the filter element 4 installation. Even when the water flow is strong or the water purifier is subjected to external vibration, the filter element 4 can remain stable and will not affect the water purification effect or cause equipment failure due to loosening.

[0069] The top of the second snap-fit ​​groove 14 includes an arc-shaped portion 16, a horizontal portion 17, and a vertical portion 18. The arc-shaped portion 16 smoothly connects the bottom wall of the lower body 1 and the horizontal portion 17. The vertical portion 18 vertically connects the bottom of the lower body 1 and the horizontal portion 17. The third snap-fit ​​groove 15 is disposed at the end of the second snap-fit ​​groove 14 near the vertical portion 18.

[0070] When installing the filter element 4, the arc-shaped portion 16 provides good guidance for the second snap-fit ​​block 11. When the second snap-fit ​​block 11 enters the second snap-fit ​​groove 14 from the bottom of the lower body 1, the smooth transition of the arc-shaped portion 16 can reduce the friction and collision between the second snap-fit ​​block 11 and the third snap-fit ​​groove 15, making it easier and smoother for the second snap-fit ​​block 11 to enter the third snap-fit ​​groove 15, reducing the installation difficulty and improving the installation efficiency.

[0071] After the second locking block 11 enters along the arc-shaped part 16, it can accurately reach the designated position under the restriction of the horizontal part 17 and the vertical part 18, ensuring the accuracy of the filter element 4 installation and avoiding problems such as loose connection between the filter element 4 and the water circuit due to installation position deviation, thus ensuring the normal operation of the water purifier.

[0072] The third latching groove 15 is located at the end of the second latching groove 14 near the vertical part 18, ensuring that the arc-shaped latching block 12 can accurately abut against the second latching block 11, thereby achieving the abutment and fixation of the second latching block 11.

[0073] The bottom of the filter element 4 is provided with a handle 41; when all the filter elements 4 are installed, the length directions of the multiple handles 41 are parallel to each other and located on the same horizontal line.

[0074] The locking member 3 is provided with a plurality of parallel limiting holes 31, which are engaged with the handle 41, and the plurality of limiting holes 31 correspond one-to-one with the plurality of handles 41.

[0075] After multiple filter elements 4 are installed, the handles 41 are parallel to each other in the length direction and located on the same horizontal line, which allows the installer to more accurately determine the installation position and direction of the filter elements 4 during the operation, reducing problems such as loosening and leakage of filter elements 4 caused by improper installation, and improving installation quality and efficiency.

[0076] Multiple limiting holes 31 on the locking member 3 are respectively engaged with multiple handles 41, so that the locking member 3 simultaneously restricts the rotation of multiple filter elements 4, ensuring that each filter element 4 can work normally in a fixed position and angle, and further preventing individual filter elements 4 from rotating.

[0077] The locking member 3 has inwardly recessed grip portions 32 on both side walls. The inwardly recessed structure of the grip portions 32 increases the contact area and friction between the fingers and the locking member 3, reducing the risk of the locking member 3 slipping out of the hand during operation. Especially when force is required to operate the locking member 3, such as overcoming resistance during installation or removal, the grip portions 32 ensure that the user firmly holds the locking member 3, preventing accidents caused by slippage and ensuring operational safety.

[0078] The side walls of the limiting holes 31 on both sides are connected to the outside. When replacing the filter element 4, the handle 41 of the filter element 4 to be replaced is engaged with the limiting hole 31 at the end. The user can quickly replace the filter element 4 by twisting the locking piece 3, which improves the comfort of operation.

[0079] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A water purifier of double snap-on structure, characterized in that, It includes a lower body, an upper body, a locking component, and multiple filter elements. The top of each filter element is engaged with the upper body via a first snap-fit ​​structure, and the bottom of each filter element is engaged with the lower body via a second snap-fit ​​structure. Rotating the filter element simultaneously engages and secures or separates the upper body and the lower body. The locking member engages with the bottom of the plurality of filter elements respectively. When the locking member engages with the bottom of the plurality of filter elements respectively, the rotation of the plurality of filter elements around their own axis is restricted.

2. A water purifier with a double-clamp structure according to claim 1, characterized in that, The first snap-fit ​​structure includes a first snap-fit ​​component, which is fixedly installed on the upper body. The first snap-fit ​​component has multiple first snap-fit ​​slots arranged side by side, and the first snap-fit ​​slots vertically penetrate the top and bottom of the first snap-fit ​​component. The top of the filter element is engaged with the first snap-fit ​​groove, and the plurality of filter elements correspond one-to-one with the plurality of the first snap-fit ​​grooves.

3. A water purifier with a double-clamp structure according to claim 2, characterized in that, Two first snap-fit ​​blocks are provided around the top periphery of the filter element, and the two first snap-fit ​​blocks are positioned opposite each other on both sides of the filter element; The first buckle structure also includes a first buckle limiting block. Two first buckle limiting blocks are provided on the inner wall of the first buckle groove. A gap is provided between the two ends of the two first buckle limiting blocks. The gap is an active channel for the first buckle block to move in the vertical direction. When the top of the first latching limiting block abuts against the bottom of the first latching block, the top of the filter element is lifted vertically upward by the first latching component, while its movement is restricted in the horizontal plane.

4. A water purifier with a double-clamp structure according to claim 3, characterized in that, The first buckle limiting block includes a guide part, a connecting part and an abutting part in sequence. The connecting part connects the guide part and the abutting part. The bottom of the connecting part and the bottom of the guide part are flush with the bottom of the first buckle groove, and the top of the abutting part is flush with the top of the first buckle groove. The gap between the top wall of the guide portion and the bottom wall of the adjacent abutting portion is the movable channel of the first snap-fit ​​block; The top wall of the connecting part and the side wall of the abutting part form the snapping space of the first snapping block. The side wall of the first snapping block abuts against the side wall of the abutting part, and the bottom of the first snapping block abuts against the top of the connecting part.

5. A water purifier with a double-clamp structure according to claim 4, characterized in that, The top of the connecting part is provided with a protruding part, and the bottom of the first snap-fit ​​block is provided with a recessed part. The protruding part and the recessed part are arranged opposite to each other and snap-fit ​​each other.

6. A water purifier with a double-clamp structure according to claim 2, characterized in that, The bottom of the filter element is provided with two second snap-fit ​​blocks, which are arranged opposite to each other; The second snap-fit ​​structure includes an arc-shaped snap-fit ​​block; the lower body is provided with a plurality of receiving slots, which are arranged side by side and correspond one-to-one with the filter element; the bottom of the receiving slot is provided with two second snap-fit ​​slots, which are arranged opposite to each other, and the second snap-fit ​​slots are interconnected with the receiving slots, and the bottom of the second snap-fit ​​slots are connected to the outside. The bottom of the lower body is provided with two third buckle slots, which are connected to the second buckle slots. The bottom of the third buckle slots is connected to the outside. The arc-shaped buckle block is detachably installed in the third buckle slot. The top wall of the arc-shaped locking block abuts against the bottom wall of the second locking block, and the top wall of the second locking groove abuts against the top wall of the second locking block.

7. A water purifier with a double-clamp structure according to claim 6, characterized in that, The top of the second snap-fit ​​groove includes an arc-shaped portion, a horizontal portion, and a vertical portion. The arc-shaped portion smoothly connects the bottom wall of the lower body and the horizontal portion. The vertical portion vertically connects the bottom of the lower body and the horizontal portion. The third snap-fit ​​groove is located at the end of the second snap-fit ​​groove near the vertical portion.

8. A water purifier with a double-clamp structure according to claim 2, characterized in that, The bottom of the filter element is provided with a handle; when all the filter elements are installed, the length directions of the multiple handles are parallel to each other and located on the same horizontal line; The locking component is provided with multiple parallel limiting holes, which are engaged with the handles, and the multiple limiting holes correspond one-to-one with the multiple handles.

9. A water purifier with a double-clamp structure according to claim 8, characterized in that, The locking member has inwardly recessed gripping portions on both sides.

10. A water purifier with a double-clamp structure according to claim 9, characterized in that, The sidewalls of the limiting holes located on both sides are connected to the outside.