Telescopic buckle device for water purifier filter element

By designing a retractable buckle device and utilizing the sliding structure of the pull ring driving the movable push plate and locking block, the problem of inconvenient installation of water purifier filter cartridges is solved, enabling quick and reliable replacement and stable installation of filter cartridges, thus improving the user experience of water purifiers.

CN223950755UActive Publication Date: 2026-02-27NINGBO YIFANG WATER PURIFICATION TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520477936.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-27
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Existing water filter cartridge fixing methods, such as rotary, pop-up, and threaded types, are inconvenient to install and affect replacement efficiency.

Method used

Design a retractable buckle device that uses a pull ring to drive a movable push plate to push a locking block, enabling the filter cartridge body to be quickly locked and unlocked at the water purifier interface. The buckle mechanism is made stable and flexible by using mechanical structures such as a slide groove, sliding seat, spring and inclined surface.

Benefits of technology

It enables quick and reliable filter replacement, reduces operational difficulty and time, improves installation stability and sealing, and enhances the user experience of the water purifier.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of water purifier filter elements, and particularly relates to a telescopic buckle device for a water purifier filter element, which comprises a filter element main body mounted on a water purifier, a buckle mechanism for fixing or releasing the filter element main body is arranged on the filter element main body, and the buckle mechanism comprises a base arranged at the top of the filter element main body. A fixed pressing plate is arranged on the base, a pull ring is hinged to the edge of one side of the fixed pressing plate, a movable push plate is movably connected between the fixed pressing plate and the base, locking blocks are arranged on the two sides of the movable push plate, and the pull ring on the water purification filter element drives the movable push plate on the buckle mechanism to push the locking blocks. The filter element main body can be directly unlocked or locked at the connector of the water purifier, the replacement is convenient, the quality is reliable, the filter element can be quickly taken out only by gently hooking, and time and labor are saved.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of filter core of purifier, specifically relates to a retractable buckle device for filter core of purifier. BACKGROUND

[0002] With the continuous progress of people's quality of life, the demand for drinking water is also increasing, and tap water generally adopts chlorination for disinfection, although it can achieve good disinfection and sterilization effect, but chlorine reacts with natural organic matter and humus in tap water to generate new more intense organic pollutants such as chloroform, tetrachloromethane and haloacetic acid; at the same time, the residual chlorine in water will affect the taste and smell of water, and the special irritating smell makes the quality of water greatly discounted, which poses a great threat to human health.

[0003] In the past, people mostly drink boiled tap water, but in today's increasingly serious water pollution, it has not met people's drinking water requirements. With the emergence of various water purification devices on the market, filter cores are provided in the water purification devices. The filter core needs to be replaced after long-term use, and in the existing water purification filter core fixing scheme, there are rotary type, pop-out type and threaded type, which are not very convenient to install. CONTENT OF THE UTILITY MODEL

[0004] I. Technical problems to be solved

[0005] The utility model is in view of the above-mentioned defects existing in the prior art, and a retractable buckle device for filter core of purifier is provided, the movable push plate on the buckle mechanism is driven by the pull ring on the water purification filter core to push the locking block, which can directly unlock or lock the filter core main body in the purifier interface, and solves the problem that the existing water purification filter core fixing scheme has rotary type, pop-out type and threaded type, and these structures are not very convenient to install.

[0006] II. Technical scheme

[0007] In order to solve the above technical problems, the utility model provides a retractable buckle device for filter core of purifier, which comprises a filter core main body for installing on a purifier, a buckle mechanism for fixing or releasing the filter core main body is arranged on the filter core main body, the buckle mechanism comprises a base arranged at the top of the filter core main body, a fixed pressing plate is arranged on the base, a pull ring is hinged to one side edge of the fixed pressing plate, a movable push plate is movably connected between the fixed pressing plate and the base, locking blocks are arranged on both sides of the movable push plate, the movable push plate and the locking blocks abut, and the locking blocks are driven to move along the movable push plate by the pull ring when the movable push plate is driven to move.

[0008] Preferably, the first sliding groove, the second sliding groove and the third sliding groove are arranged in a straight line along the center of the movable push plate in the length direction, a positioning column capable of sliding in the second sliding groove is arranged on the base, and a sliding seat capable of sliding in the first sliding groove is arranged on the same straight line of the positioning column.

[0009] Preferably, a spring member is arranged in the first sliding groove, one end of the spring member is fixedly installed on the sliding seat, and the other end of the spring member is fixedly installed on the inner wall of the first sliding groove.

[0010] Preferably, the two sides of the movable push plate are provided with triangular extension edges, a sliding column is arranged on the extension edge, a fourth sliding groove is arranged at the bottom of the locking block, and the sliding column can slide in the fourth sliding groove.

[0011] Preferably, the extension edge has an inclined surface, one side of the locking block is provided with a triangular inclined surface matched with the extension edge, and the triangular inclined surface and the inclined surface are connected through a sliding mechanism.

[0012] Preferably, one end of the pull ring is provided with a ring convenient for holding or hanging, and the other end of the pull ring is provided with a fixed push block in contact with the movable push plate.

[0013] Preferably, the movable push plate is provided with a blocking block, and the fixed push block and the blocking block abut against each other.

[0014] Preferably, the base is sleeved with a shell, the shell is provided with a placing groove matched with the pull ring, and the base and the shell are provided with openings through which the locking block passes.

[0015] III. Beneficial effects

[0016] Compared with the prior art, the pull ring on the water purification filter element drives the movable push plate on the buckle mechanism to push the locking block, so that the filter element main body can be directly unlocked or locked on the water purifier interface, replacement is convenient, quality is reliable, and the filter element can be quickly taken out only by gently hooking, thereby saving time and effort. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the filter element main body of the utility model.

[0018] Figure 2 It is a three-dimensional structure schematic view of the buckle mechanism of the utility model.

[0019] Figure 3 It is an exploded view of the three-dimensional structure of the buckle mechanism of the utility model.

[0020] Figure 4 It is a sectional view of the buckle mechanism of the utility model.

[0021] Figure 5 It is a three-dimensional structure schematic view of the movable push plate of the utility modelFigure 1 .

[0022] Figure 6 The utility model discloses an activity push plate three -dimensional structure shows Figure 2 .

[0023] Figure 7 The utility model discloses an activity push plate three -dimensional structure decomposition Figure 1 .

[0024] Figure 8 The utility model discloses an activity push plate three -dimensional structure decomposition Figure 2 .

[0025] In the drawing:

[0026] 1 is the filter core main body;2 is the buckle mechanism;3 is the base;31 is the positioning column;32 is the sliding seat;4 is the fixed pressing plate;5 is the pull ring;51 is the circular ring;52 is the fixed push block;6 is the movable push plate;61 is the first sliding groove;611 is the spring piece;62 is the second sliding groove;63 is the third sliding groove;64 is the extension edge;641 is the sliding column;642 is the inclined surface;65 is the blocking block;7 is the locking block;71 is the fourth sliding groove;72 is the triangular inclined surface;8 is the shell;81 is the placing groove;9 is the opening. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model are described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0028] Example 1:

[0029] In combination with Figure 1 , Figure 2 , Figure 3 and Figure 4 , a kind of telescopic buckle device for filter core of water purifier, including the filter core main body 1 for installing on water purifier, filter core main body 1 is filled with high-efficiency water purification material inside, for filtering the impurity, peculiar smell and harmful substance in water.The shape design of filter core main body 1 meets the installation space requirement inside water purifier, ensure close fitting, reduce the risk of water leakage.

[0030] Buckle mechanism 2 for fixing or releasing filter core main body 1 is arranged on filter core main body 1, buckle mechanism 2 is the key of connecting filter core main body 1 and water purifier main body, buckle mechanism 2 allows user to easily install or disassemble filter core without the aid of tool.

[0031] The buckle mechanism 2 comprises a base 3 arranged at the top of the filter core body 1, a fixed pressing plate 4 arranged on the base 3, a pull ring 5 hingedly connected to one side edge of the fixed pressing plate 4, and an active push plate 6 movably connected between the fixed pressing plate 4 and the base 3. Locking blocks 7 are arranged on both sides of the active push plate 6. The active push plate 6 abuts against the locking blocks 7, and the active push plate 6 is driven to move by the pull ring 5, thereby driving the locking blocks 7 to move along the sides of the active push plate 6.

[0032] The base 3 is provided with the fixed pressing plate 4, which keeps the filter core body 1 stable by a certain pressure. The fixed pressing plate 4 is hingedly connected to the pull ring 5 on one side edge, so that the user can overcome the friction between the fixed pressing plate 4 and the base 3 by a simple pulling action, thereby unlocking the buckle mechanism 2 and facilitating the replacement of the filter core.

[0033] The fixed pressing plate 4 is movably connected with the base 3 through the active push plate 6, which is movably connected through a certain form of mechanical connection (such as spring, sliding rail, etc.). The active push plate 6 provides an outward pushing force to assist the filter core body 1 to smoothly come out of the water purifier when the buckle mechanism 2 is unlocked.

[0034] Locking blocks 7 are arranged on both sides of the active push plate 6. When the buckle mechanism 2 is in the locked state, the locking blocks 7 cooperate with the corresponding structure of the water purifier body to form a firm locking mechanism. The shape and position of the locking blocks 7 are carefully designed to ensure that they remain stable when subjected to external forces and prevent the filter core from accidentally falling off.

[0035] This telescopic buckle device for the filter core of the water purifier, through the ingenious mechanical structure design, not only improves the convenience of replacing the filter core, but also ensures the stability and sealing of the filter core installation, which is an important innovation to improve the use experience and performance of the water purifier.

[0036] As shown in Figure 5 , Figure 6 , Figure 7 and Figure 8 , a first sliding groove 61, a second sliding groove 62 and a third sliding groove 63 are arranged along the center of the length direction of the active push plate 6 in a straight line. A positioning column 31 is arranged on the base 3 and can slide in the second sliding groove 62. A sliding seat 32 is arranged on the same straight line of the positioning column 31 and can slide in the first sliding groove 61.

[0037] Specifically, the first sliding groove 61, the second sliding groove 62 and the third sliding groove 63 are arranged along the center of the length direction of the active push plate 6 in a straight line, which not only enhances the functionality of the buckle device, but also ensures the coordination and stability of the action between the components.

[0038] The first sliding groove 61 is located at one end of the movable push plate 6 and is designed to accommodate the sliding seat 32. The sliding seat 32 not only can slide freely in the first sliding groove 61, but also is connected to other components on the base 3 through some form of connecting structure (such as bolts, pins, or buckles). When the movable push plate 6 moves under the action of external force, the sliding seat 32 slides along the trajectory of the first sliding groove 61, and this sliding mechanism helps to realize the locking and unlocking actions of the buckle mechanism 2.

[0039] The second sliding groove 62 accommodates the positioning column 31 on the base 3. The role of the positioning column 31 is to provide a stable guide and support point during the movement of the movable push plate 6. Due to the width design of the second sliding groove 62, the positioning column 31 can slide smoothly therein while maintaining the relative position with the movable push plate 6, which is crucial for ensuring the stability and reliability of the buckle mechanism 2.

[0040] The positioning column 31 is arranged in line with the sliding seat 32, ensuring that the positioning column 31 and the sliding seat 32 can act synchronously when the movable push plate 6 moves, thereby maintaining the relative positional relationship between the components inside the buckle mechanism 2. This is crucial for achieving quick and accurate locking and unlocking of the buckle mechanism 2.

[0041] In combination with Figure 5 , Figure 6 , Figure 7 and Figure 8 , the first sliding groove 61 is internally provided with a spring member 611. The spring member 611 not only enhances the functionality and flexibility of the buckle device, but also ensures the stability and reset ability of the sliding seat 32 during movement. One end of the spring member 611 is fixedly installed on the sliding seat 32, and the other end is fixedly installed on the inner wall of the first sliding groove 61.

[0042] The spring member 611 is installed inside the first sliding groove 61, with one end fixedly connected to the sliding seat 32 and the other end fixedly connected to the inner wall of the first sliding groove 61. This ensures that the spring member 611 can provide continuous elastic support when the sliding seat 32 moves, while maintaining the cooperation between the spring member 611 and the first sliding groove 61 and the sliding seat 32.

[0043] When the movable push plate 6 moves, the sliding seat 32 slides along the trajectory of the first sliding groove 61, while compressing or stretching the spring member 611. Once the external force disappears, the elastic force of the spring member 611 will push the sliding seat 32 back to its original position, thereby achieving the quick and accurate locking and unlocking function of the buckle mechanism 2.

[0044] In combination with Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the movable push plate 6 has triangular extension sides 64 on both sides. These triangular extension sides 64, through their stable geometry, provide additional support and strength to the movable push plate 6. This helps resist external forces from twisting or deforming the movable push plate 6, ensuring the stability and reliability of the latching device during long-term use.

[0045] A sliding post 641 is provided on the extension edge 64, and a fourth sliding groove 71 is provided at the bottom of the locking block 7, allowing the sliding post 641 to slide within the fourth sliding groove 71. The extension edge 64 ensures that the sliding post 641 can be fixed on the extension edge 64, while allowing it to move in a specific direction when needed. The sliding post 641 can slide freely within the fourth sliding groove 71. This allows the locking block 7 to adjust its position accordingly based on the movement of the movable push plate 6, thereby realizing the locking and unlocking functions of the latching mechanism 2.

[0046] The fourth groove 71 not only provides a sliding track for the sliding column 641, but also ensures that the locking block 7 can accurately lock and unlock when the movable push plate 6 moves.

[0047] When the movable push plate 6 moves under the action of an external force, the sliding column 641 slides along the trajectory of the fourth slide groove 71. This allows the locking block 7 to adjust its locking state accordingly based on the position change of the movable push plate 6. Once the movable push plate 6 reaches the predetermined position, the sliding column 641 pushes the locking block 7 into or pulls it out of the locking groove of the water purifier interface, thereby realizing the locking or unlocking function of the latching mechanism 2.

[0048] Combination Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the extension edge 64 has an inclined surface 642, and a triangular inclined surface 72 matching the extension edge 64 is provided on one side of the locking block 7. The triangular inclined surface 72 and the inclined surface 642 are connected to each other through a sliding mechanism.

[0049] Specifically, the extended edge 64 not only provides a stable installation base for the sliding column 641, but also forms a sliding engagement mechanism with the triangular inclined surface 72 on the locking block 7 through its unique inclined surface 642 design.

[0050] The inclined surface 642 is typically designed as a gradually decreasing or increasing slope, which helps to gradually change the relative position between the locking block 7 and the movable push plate 6 during sliding. The main function of the inclined surface 642 is to guide the locking block 7 to move in a specific direction and ensure that it maintains engagement with the triangular inclined surface 72 during sliding. This helps to achieve smooth locking and unlocking of the latching device.

[0051] When the movable push plate 6 moves under the action of external force, the inclined surface 642 slides relative to the triangular slope 72. This allows the locking block 7 to adjust its position and direction accordingly according to the position of the movable push plate 6. During the sliding process, the inclined surface 642 gradually pushes or pulls the triangular slope 72, causing the locking block 7 to move along a predetermined trajectory to the locked or unlocked position. Once the locking block 7 reaches the predetermined position, the locking block 7 will tightly fit with the locking slot of the water purifier interface, realizing the locking function of the buckle device; conversely, when unlocking is needed, the sliding fit of the inclined surface 642 and the triangular slope 72 will guide the locking block 7 to leave the locking slot, realizing the unlocking function.

[0052] In combination with Figure 2 , Figure 3 , Figure 4 and Figure 5 , one end of the pull ring 5 is provided with a circular ring 51 for easy holding or hanging. The design of the circular ring 51 fully considers the principle of ergonomics and is optimized to be suitable for the fingers of most people. Not only does this make it easy for users to exert force when pulling the pull ring 5, but it also reduces hand fatigue. In addition to being easy to hold, the circular ring 51 can also serve as a hanging point, allowing users to hang the buckle device at a certain location for storage or carrying when not in use. This increases the practicality and convenience of the buckle device.

[0053] The bottom of the other end of the pull ring 5 is provided with a fixed push block 52 that contacts the movable push plate 6. When the user pulls the circular ring 51, the force is transmitted to the fixed push block 52 through the pull ring 5, which in turn pushes the movable push plate 6 to move along a predetermined trajectory. This force transmission path design is simple and clear, ensuring effective force transmission and action execution.

[0054] The pull ring 5 allows users to easily exert force and quickly complete the locking and unlocking actions of the buckle device. This not only improves operational efficiency, but also reduces the difficulty and complexity of user operations.

[0055] In combination with Figure 2 , Figure 3 , Figure 4 and Figure 5 , the movable push plate 6 is provided with a blocking block 65 that ensures tight and stable abutment with the fixed push block 52. This helps prevent the movable push plate 6 from shifting or shaking during movement, ensuring the accuracy and reliability of the buckling action.

[0056] The fixed push block 52 abuts against the blocking block 65. When the user pulls the pull ring 5, the fixed push block 52 will move along a predetermined trajectory and eventually abut against the blocking block 65. Not only does this achieve force transmission, but it also ensures that the movable push plate 6 moves in the intended direction and distance. During the abutment process, the fixed push block 52 will exert a certain pressure on the blocking block 65, thereby pushing the movable push plate 6 to complete the buckling or unlocking action.

[0057] Embodiment 2:

[0058] Compared with Embodiment 1, as shown in Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the base 3 is sleeved with the shell 8, and the assembly between the base 3 and the shell 8 is usually designed to be easily disassembled, such as screw fixing or buckle connection. Not only is it convenient for users to easily separate the base 3 and the shell 8 during installation or maintenance, but it also helps to reduce the workload when the internal components need to be replaced or repaired.

[0059] The shell 8 is provided with a placing groove 81 matched with the pull ring 5, and the placing groove 81 is matched with the shape and size of the pull ring 5. Not only can the pull ring 5 be stably placed in the placing groove 81 to prevent it from shaking or falling off when not in use, but it also provides a convenient storage and carrying method for users. Users only need to pull gently to take out the pull ring 5 from the placing groove 81 and operate it. Not only does it improve the operation efficiency, but it also reduces the operation difficulty and complexity of the user.

[0060] The base 3 and the shell 8 are provided with openings 9 through which the locking blocks 7 pass. The openings 9 ensure that the locking blocks 7 can smoothly pass through and be locked in the predetermined position when needed. The openings 9 not only meet the sliding needs of the locking blocks 7, but also enhance the structural strength of the base 3 and the shell 8 through reasonable layout and size design. It helps to prevent damage to the shell 8 or the base 3 during the sliding process of the locking blocks 7, and improves the durability and reliability of the entire device.

[0061] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, some improvements and refinements can be made, and these improvements and refinements should be considered as the protection range of the present application.

Claims

1. A retractable snap device for a water filter cartridge, comprising: The retractable buckle device for the filter core of a water purifier comprises a filter core body (1) for being mounted on the water purifier, and a buckle mechanism (2) for fixing or releasing the filter core body (1) is arranged on the filter core body (1); The buckle mechanism (2) comprises a base (3) arranged on the top of the filter core body (1), a fixed pressing plate (4) arranged on the base (3), a pull ring (5) hingedly arranged on one side edge of the fixed pressing plate (4), a movable pressing plate (6) movably connected between the fixed pressing plate (4) and the base (3), and locking blocks (7) arranged on both sides of the movable pressing plate (6), wherein the movable pressing plate (6) abuts against the locking blocks (7), and the locking blocks (7) are driven to move along the both sides of the movable pressing plate (6) while the movable pressing plate (6) is driven to move by the pull ring (5).

2. A retractable snap device for a filter cartridge of a water purifier according to claim 1, wherein A first sliding groove (61), a second sliding groove (62) and a third sliding groove (63) are arranged in a straight line along the center of the length direction of the movable pressing plate (6), and a positioning column (31) capable of sliding in the second sliding groove (62) is arranged on the base (3).

3. A retractable snap device for a water filter cartridge according to claim 2, wherein, A spring member (611) is arranged in the first sliding groove (61), one end of the spring member (611) is fixedly installed on the sliding seat (32), and the other end of the spring member (611) is fixedly installed on the inner wall of the first sliding groove (61).

4. A retractable snap device for a water filter cartridge according to claim 3, wherein, The movable pressing plate (6) is provided with triangular extension edges (64) on both sides, the extension edges (64) are provided with sliding columns (641), the bottom of the locking block (7) is provided with a fourth sliding groove (71), and the sliding column (641) can slide in the fourth sliding groove (71).

5. A retractable snap device for a water filter cartridge according to claim 4 wherein, The extension edges (64) have an inclined surface (642), one side of the locking block (7) is provided with a triangular inclined surface (72) matched with the extension edges (64), and the triangular inclined surface (72) and the inclined surface (642) are connected through a sliding mechanism.

6. The retractable snap of claim 1, wherein, One end of the pull ring (5) is provided with a ring (51) for convenient holding or hanging, and the other end of the pull ring (5) is provided with a fixed pushing block (52) in contact with the movable pressing plate (6).

7. A retractable catch device for a water filter cartridge according to any one of claims 1-6, wherein, The movable pressing plate (6) is provided with a blocking block (65), and the fixed pushing block (52) and the blocking block (65) abut against each other.

8. A retractable snap device for a water filter cartridge according to claim 7, wherein, The base (3) is sleeved with an outer shell (8), the outer shell (8) is provided with a placing groove (81) matched with the pull ring (5), and the base (3) and the outer shell (8) are provided with openings (9) through which the locking blocks (7) pass.