Water purifier case and water purifier

By using a retractable locking assembly in the water purifier housing to work with the raised filter element, the installation and removal process of the filter element is simplified, the problems of complex rotating structures and easy wear are solved, and the convenience of filter element replacement and sealing performance are improved.

CN224100167UActive Publication Date: 2026-04-10SHENZHEN TAIPU ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

The rotating structure of existing water purifier filter elements is complex, which increases manufacturing costs and makes them prone to wear, affecting sealing performance and filtration effect.

Method used

The filter cartridge uses a retractable locking assembly that works with a bottom protrusion, allowing the filter cartridge to be installed or removed by pressing, simplifying the structure.

Benefits of technology

This achieves convenient and stable filter replacement, reduces manufacturing costs, and improves the sealing performance and filtration effect of the filter element.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a water purifier case and a water purifier, belongs to the technical field of water purification equipment, and comprises a shell as well as a filter element seat and a waterway plate which are arranged in the shell, the filter element seat is arranged on the waterway plate, a telescopic locking assembly is arranged on the peripheral side of the filter element seat, the locking assembly is connected with the filter element seat through a first elastic piece, and the locking assembly is connected with the waterway plate through a second elastic piece. The first elastic piece applies force towards the inner side of the filter element base to the locking assembly, a limiting hole used for installing the filter element is formed in the side, facing the interior of the filter element base, of the locking assembly, a sliding buckle is movably installed in the limiting hole, and the sliding buckle can drive the locking assembly to move towards the outer side of the filter element base when stressed. Compared with the prior art, the water purifier provided by the utility model has the advantages that the filter element can be mounted or dismounted in a pressing manner without using a rotating structure, so that the structure is simplified.
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Description

TECHNICAL FIELD

[0001] The utility model relates to water purification equipment technical field, especially a water purifier case and water purifier. BACKGROUND

[0002] With people's continuous improvement of drinking water safety consciousness, water purifier has become an indispensable household appliance in modern family life. The water purifier filters tap water through the filter element, removes impurities, bacteria, heavy metals and other harmful substances in water, thereby providing cleaner and safer drinking water. However, the filter element of the water purifier as a core component, its convenience of replacement directly affects the user's experience. Based on this, some manufacturers have developed a press-eject type filter element structure, which is similar in structure to the press structure type of a press ball pen. The original intention of this structure design is to facilitate users to quickly replace the filter element. However, this type of press-eject filter element structure generally includes a rotating structure. However, during actual use, this rotating structure has some problems. On the one hand, the rotating structure is relatively complex and involves the coordinated work of multiple components. This increases the manufacturing cost, on the other hand, the rotating structure is prone to wear and looseness during long-term use. This not only affects the ejection effect of the filter element, but also may cause the sealing performance of the filter element to decline, thereby affecting the filtering effect of the water purifier.

[0003] Therefore, the above technical problems need to be solved. CONTENT OF THE UTILITY MODEL

[0004] In view of the problems in the prior art, the utility model provides a water purifier case and a water purifier, which simplifies the structure while ensuring the convenience of filter element replacement.

[0005] The technical scheme of the utility model provides a water purifier case, which comprises a shell, a filter element seat and a waterway plate arranged in the shell, the filter element seat is installed on the waterway plate, a telescopic locking assembly is arranged on the periphery of the filter element seat, the locking assembly is connected with the filter element seat through a first elastic member, the first elastic member applies a force to the locking assembly towards the inside of the filter element seat, a limiting hole for installing a filter element is arranged on the side of the locking assembly towards the inside of the filter element seat, and a sliding buckle is movably installed in the limiting hole and can drive the locking assembly to move towards the outside of the filter element seat when subjected to a force.

[0006] Further, the locking assembly comprises a movable block, a locking block and a mounting block are arranged on the side of the movable block close to the inside of the filter element seat, the limiting hole is the gap between the locking block and the mounting block, and the first elastic member is arranged between the movable block and the filter element seat.

[0007] Further, a guide rod is further arranged in the limiting hole, both ends of the guide rod are fixed on the locking block and the mounting block respectively, the sliding buckle is movably installed on the guide rod, and the sliding buckle can move along the setting direction of the guide rod.

[0008] Further, the locking block is provided with a locking section on the side away from the sliding buckle, the sliding buckle is provided with a releasing section on the side away from the sliding buckle, the contact surface between the sliding buckle and the locking block is a plane, and the sliding buckle can move along the guide rod to a position closely combined with the locking block.

[0009] Further, the sliding buckle is provided with a wedge-shaped block on the side facing the locking block, and the locking block is provided with a containing groove containing the wedge-shaped block, and the wedge-shaped block enters or exits the containing groove along with the movement of the sliding buckle.

[0010] Further, the locking assembly is two, and the two locking assemblies are symmetrically arranged along the central axis of the filter element seat.

[0011] Further, the filter element seat is further provided with a second elastic member, and the second elastic member is located between the filter element seat and the filter element and is used for applying a force away from the filter element seat to the filter element.

[0012] The application also provides a water purifier, which comprises the water purifier cabinet and a filter element, and the filter element is provided with a boss on the bottom side, and the boss on the filter element is in abutting cooperation with the locking assembly on the filter element seat to make the locking assembly reciprocate, so that the water purifier cabinet can install or remove the filter element.

[0013] Compared with the prior art, the application is provided with the locking assembly on the filter element seat of the water purifier cabinet, and the filter element with the boss on the bottom is matched, so that the water purifier can install or remove the filter element through pressing without using a rotating structure, and the structure is simplified. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the assembly structure of the filter element and the filter element seat of the present application.

[0017] Figure 3 It is a schematic diagram of the structure of the filter element and the filter element seat of the present application.

[0018] Figure 4 It is a schematic diagram of the cross section of the filter element and the filter element seat of the present application.

[0019] Figure 5The utility model discloses a filter element seat section view schematic diagram.

[0020] Figure 6 The utility model discloses a locking assembly structure schematic diagram.

[0021] Figure 7 The utility model discloses a filter element and filter element seat assembly structure section view schematic diagram.

[0022] Reference signs:

[0023] Shell 1;Filter element seat 2;Locking assembly 21;First elastic part 211;Limiting hole 212;Movable block 213;Locking block 214;Mounting block 215;Guide rod 216;Locking section 217;Accommodating groove 218;Sliding buckle 22;Wedge block 221;Unlocking section 222;Second elastic part 23;Filter element 3;Boss 31. DETAILED DESCRIPTION

[0024] In order to make the technical problem, technical scheme and beneficial effect that the utility model wants to solve more clearly obvious, the following combines the drawing and example, and the utility model is further detailedly explained.It should be understood that the specific example described here is only used to explain the utility model, and is not used to limit the utility model.

[0025] Therefore, one feature indicated in the specification will be used to explain one feature of one embodiment of the utility model, and not imply that each embodiment of the utility model must have the explained feature.In addition, it should be noted that the specification describes many features.Although certain features can be combined together to show possible system design, these features can also be used in other combinations that are not explicitly explained.Thus, unless otherwise stated, the explained combination is not intended to limit.

[0026] In the description of the present application, the terms "first", "second" are only used for description purposes, and can not be understood as indicating or implying relative importance.

[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawing, and are only used for the convenience of describing the present application and simplifying the description, and not to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as limiting the present application.

[0028] The principles and structure of the utility model will be described in detail below in combination with the drawings and examples.

[0029] Please refer to Figures 1 to 7The application provides a water purifier, which comprises a water purifier case and a filter core 3. A plurality of filter core seats 2 for mounting the filter core 3 and a water circuit board are arranged in the shell 1 of the water purifier case, one end of the filter core seat 2 away from the filter core 3 is mounted on the water circuit board, and the water inlet and outlet interfaces at the bottom of the filter core seat 2 are connected with the water circuit board.

[0030] Wherein, as shown in the orientation of Figures 2 to 4 two accommodating cavities are arranged at the two sides of the bottom end of the filter core seat 2, the two accommodating cavities are provided with locking assemblies 21, and the two locking assemblies 21 are symmetrically arranged along the central axis of the filter core seat 2. This design makes the two ends of the filter core seat 2 bear force uniformly, thereby improving the reliability of the whole.

[0031] The locking assembly 21 is connected with the filter core seat 2 through a first elastic member 211, and each locking assembly 21 is further provided with a limiting hole 212 on the side facing the inside of the filter core seat 2. When the filter core 3 needs to be mounted on the filter core seat 2, the filter core 3 is pressed towards the filter core seat 2, the filter core 3 will contact the locking assembly 21, the locking assembly 21 is extruded by the boss 31 at the bottom of the filter core 3 and moves to the outside of the filter core seat 2, so that the filter core 3 can continue to move towards the filter core seat 2. Since the first elastic member 211 continuously applies force to the locking assembly 21 towards the inside of the filter core seat 2, when the boss 31 at the bottom of the filter core 3 reaches the position where the limiting hole 212 is located, the locking assembly 21 will move towards the inside of the filter core seat 2, at this time, the limiting hole 212 accommodates the boss 31 at the bottom of the filter core 3, so that the filter core 3 is clamped with the filter core seat 2, thereby completing the operation of mounting the filter core 3 in the water purifier case.

[0032] The sliding buckle 22 is arranged in the limiting hole 212 and can move up and down in the limiting hole 212. When the filter element 3 needs to be replaced, the filter element 3 in the water purifier cabinet needs to be disassembled, at this time, the filter element 3 is continuously pressed towards the filter element seat 2, the filter element 3 first contacts the upper end of the sliding buckle 22, and drives the sliding buckle 22 to move downwards in the limiting hole 212. When the sliding buckle 22 reaches the bottom of the limiting hole 212, the sliding buckle 22 cannot move downwards any more, at this time, the sliding buckle 22 is extruded by the boss 31 at the bottom of the filter element 3 and drives the locking assembly 21 to move towards the outside of the filter element seat 2, until the boss 31 at the bottom of the filter element 3 passes the upper end of the sliding buckle 22 and reaches the lower end of the sliding buckle 22, the locking assembly 21 moves towards the inside of the filter element seat 2 under the action of the first elastic element 211, so that the lower end of the sliding buckle 22 abuts against the boss 31 at the bottom of the filter element 3. At this time, the filter element 3 is pulled out in the direction away from the filter element seat 2, when the filter element 3 rises, the boss 31 at the bottom of the filter element 3 drives the sliding buckle 22 to move upwards in the limiting hole 212. When the sliding buckle 22 reaches the top of the limiting hole 212, the sliding buckle 22 cannot move upwards any more, at this time, the sliding buckle 22 is extruded by the boss 31 at the bottom of the filter element 3 and drives the locking assembly 21 to move towards the outside of the filter element seat 2, so that the filter element 3 can pass the locking assembly 21 and continue to move upwards until it is disengaged from the filter element seat 2, thereby completing the operation of disassembling the filter element 3 from the water purifier cabinet.

[0033] Further, please refer to Figure 5 and Figure 6 The locking assembly 21 comprises a movable block 213, a locking block 214 and a mounting block 215, the movable block 213 is installed in the accommodating cavities on both sides of the bottom end of the filter element seat 2 and can move left and right in the accommodating cavities. The locking block 214 and the mounting block 215 are installed on the side of the movable block 213 facing the inside of the filter element seat 2, it is noted that the locking block 214 and the mounting block 215 are arranged in parallel, and the locking block 214 is above the mounting block 215, and the gap between the locking block 214 and the mounting block 215 is the limiting hole 212. The first elastic element 211 is installed between the movable block 213 and the filter element seat 2, specifically, one end of the first elastic element 211 is connected to the side of the movable block 213 away from the locking block 214 and the mounting block 215, and the other end of the first elastic element 211 is connected to the inner wall of the bottom end of the filter element seat 2, in this embodiment, the first elastic element 211 is a spring. This makes the boss 31 at the bottom of the filter element 3 have a tendency to move close to the inside of the filter element seat 2 when it reaches the limiting hole 212 between the locking block 214 and the mounting block 215, the movable block 213 moves towards the inside of the filter element seat 2 under the action of the first elastic element 211, so that the limiting hole 212 and the boss 31 at the bottom of the filter element 3 are engaged together, to ensure that the filter element 3 can be stably installed on the water purifier cabinet.

[0034] The limiting hole 212 is further provided with a guide rod 216, the two ends of which are connected to the locking block 214 and the mounting block 215 respectively, and the guide rod 216 is arranged perpendicular to the plane on which the locking block 214 and the mounting block 215 are located. The sliding buckle 22 is provided with a through hole for the guide rod 216 to pass through. The sliding buckle 22 is movably mounted on the guide rod 216 through the through hole and can move up and down between the locking block 214 and the mounting block 215 along the guide rod 216.

[0035] Specifically, such as Figure 6 As shown, the top of the locking block 214 is the locking section 217, which has a sloping design. When the filter element 3 needs to be installed on the filter element holder 2, the boss 31 at the bottom of the filter element 3 contacts the locking section 217 at the top of the locking block 214. The movable block 213 will gradually move outward from the filter element holder 2 under the interaction force of the boss 31 and the locking block 214. The sloping design of the locking section 217 makes it difficult for the boss 31 and the locking block 214 to get stuck, ensuring the overall reliability.

[0036] Here, a wedge-shaped block 221 is provided on the top of the sliding buckle 22. The side of the wedge-shaped block 221 facing the locking block 214 is designed to be inclined. At the bottom of the locking block 214, there is also a receiving groove 218 for accommodating the wedge-shaped block 221. The contact surfaces of the bottom of the locking block 214 and the top of the sliding buckle 22 are both flat. When the sliding buckle 22 and the locking block 214 are tightly fitted, the wedge-shaped block 221 enters the receiving groove 218. Specifically, when it is necessary to remove the filter element 3 from the filter element seat 2, the filter element 3 is pressed towards the filter element seat 2. The downward movement of the filter element 3 will drive the sliding buckle 22 to move downward along the guide rod 216 within the limiting hole 212. When the sliding buckle 22 moves to the bottom of the limiting hole 212 and abuts against the mounting block 215, the sliding buckle 22 can no longer move downward, and the boss 31 at the bottom of the filter element 3 will contact the wedge-shaped block 221 on the top of the sliding buckle 22. The movable block 213 gradually moves outward from the filter element seat 2 under the interaction force of the boss 31 and the wedge block 221, allowing the boss 31 at the bottom of the filter element 3 to pass over the top of the sliding buckle 22 and reach the release section 222 at the bottom of the sliding buckle 22. Then, under the action of the first elastic element 211, the movable block 213 moves inward from the filter element seat 2, causing the boss 31 to abut against the release section 222 at the bottom of the sliding buckle 22. At this time, the filter element 3 is pulled out away from the filter element seat 2, and the sliding buckle 22 moves upward along with the filter element 3. When the sliding buckle 22 moves to abut against the locking block 214, the sliding buckle 22 can no longer move upward. The movable block 213 moves outward from the filter element seat 2 under the interaction force of the boss 31 and the release section 222 at the bottom of the sliding buckle 22, allowing the filter element 3 to continue to move upward, thereby removing the filter element 3 from the filter element seat 2. To ensure that the sliding buckle 22 can move together with the filter element 3, the length of the sliding buckle 22 is greater than the length of the locking block 214. In order to avoid the filter element 3 getting stuck with the sliding buckle 22 and thus being unable to be smoothly removed from the filter element seat 2, the release section 222 at the bottom of the sliding buckle 22 is also designed as a slope.

[0037] Furthermore, such as Figure 5 As shown, a second elastic element 23 is also provided inside the filter element holder 2. Specifically, one end of the second elastic element 23 is connected to the bottom inner wall of the filter element holder 2, and the other end is a free end. When the filter element 3 is installed on the filter element holder 2, the end face of the filter element 3 facing the filter element holder 2 will abut against the free end of the second elastic element 23. The filter element 3 is constantly inclined to move away from the filter element holder 2 due to the force exerted by the second elastic element 23. When it is necessary to install the filter element 3 on the filter element holder 2, the second elastic element 23 applies an upward force to the filter element 3, thus strengthening the abutment between the upper end of the boss 31 and the lower end of the locking block 214, making the installation between the filter element 3 and the filter element holder 2 more stable and preventing the filter element 3 from shaking during use. In this embodiment, the second elastic element 23 is a spring.

[0038] The application also provides a water purifier comprising the filter element 3. As shown in the orientation, the filter element 3 is provided with a boss 31 on both sides of the bottom, the top of the boss 31 is designed as a plane, and the bottom of the boss 31 is designed as an inclined surface. The plane on the top of the boss 31 can abut against the plane on the bottom of the locking block 214, so that the boss 31 can be clamped in the limiting hole 212, and the inclined surface on the bottom of the boss 31 can cooperate with the locking segment 217 on the top of the locking block 214 and the wedge-shaped block 221 on the top of the sliding buckle 22, so that the movable block 213 can smoothly move towards the outside of the filter element seat 2. Figure 3

[0039] In actual use, as shown in the orientation, Figure 4 and Figure 7 when it is needed to install the filter element 3 into the water purifier case, first, the filter element 3 is aligned with the filter element seat 2 and pressed towards the filter element seat 2, the boss 31 on the bottom of the filter element 3 will first contact the locking segment 217 on the top of the locking block 214 after the filter element 3 enters the filter element seat 2, and under the action of the boss 31, the locking block 214 will drive the movable block 213 to move towards the outside of the filter element seat 2, so that the filter element 3 can continue to move towards the filter element seat 2. When the boss 31 on the bottom of the filter element 3 passes over the top of the locking block 214 to the bottom of the locking block 214, the movable block 213 will move towards the inside of the filter element seat 2 under the action of the first elastic member 211, so that the boss 31 of the filter element 3 is clamped with the limiting hole 212. And the bottom surface of the filter element 3 contacts the second elastic member 23 in the filter element seat 2, under the action of the second elastic member 23, the boss 31 of the filter element 3 is tightly abutted with the locking block 214, thereby completing the operation of installing the filter element 3 into the water purifier case.

[0040] ​When the filter core 3 needs to be replaced, the original filter core 3 in the filter core seat 2 needs to be disassembled. First, press the filter core 3 towards the filter core seat 2, the boss 31 at the bottom of the original filter core 3 is located between the locking block 214 and the sliding buckle 22, the boss 31 at the bottom of the filter core 3 will contact the sliding buckle 22 with the movement of the filter core 3, the sliding buckle 22 moves towards the filter core seat 2 with the filter core 3, when the sliding buckle 22 moves to abut against the mounting block 215, it cannot move again, the bottom of the boss 31 abuts against the wedge-shaped block 221 at the top of the sliding buckle 22, with the continuous movement of the filter core 3 towards the filter core seat 2, the boss 31 extrudes the wedge-shaped block 221 to make the sliding buckle 22 drive the movable block 213 to move towards the outside of the filter core seat 2, until the boss 31 moves to the release section 222 at the bottom of the sliding buckle 22. Because the second elastic member 23 is compressed during the downward movement of the filter core 3, when the filter core 3 is pressed towards the filter core seat 2, the filter core 3 is upwardly moved under the action of the rebound force of the second elastic member 23, at this time the boss 31 drives the sliding buckle 22 to rise together, when the sliding buckle 22 abuts against the locking block 214, it cannot rise again, the release section 222 at the bottom of the sliding buckle 22 is extruded by the upward force of the boss 31, so that the movable block 213 moves towards the outside of the filter core seat 2, so that the filter core 3 can continue to move upwards until it is separated from the filter core seat 2, when the filter core 3 is separated from the filter core seat 2, the movable block 213 is reset under the action of the first elastic member 211, thereby completing the work of disassembling the filter core 3 from the water purifier case.

[0041] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water purifier cabinet, comprising a shell (1) and a filter element seat (2) and a waterway board arranged in the shell (1), characterized in that, The filter element seat (2) is mounted on the waterway plate, a telescopic locking assembly (21) is arranged on the circumferential side of the filter element seat (2), the locking assembly (21) is connected with the filter element seat (2) through a first elastic member (211), the first elastic member (211) applies a force to the locking assembly (21) towards the inside of the filter element seat (2), and a limiting hole (212) for mounting a filter element (3) is arranged on the side of the locking assembly (21) towards the inside of the filter element seat (2), a sliding buckle (22) is movably arranged in the limiting hole (212), and the sliding buckle (22) can drive the locking assembly (21) to move towards the outside of the filter element seat (2) when subjected to a force.

2. The water purifier cabinet according to claim 1, characterized in that, The locking assembly (21) comprises a movable block (213), the movable block (213) is provided with a locking block (214) and a mounting block (215) on the side close to the inside of the filter element seat (2), the limiting hole (212) is a gap between the locking block (214) and the mounting block (215), and the first elastic member (211) is arranged between the movable block (213) and the filter element seat (2).

3. The water purifier cabinet according to claim 2, characterized in that, A guide rod (216) is further arranged in the limiting hole (212), both ends of the guide rod (216) are fixed on the locking block (214) and the mounting block (215) respectively, the sliding buckle (22) is movably arranged on the guide rod (216), and the sliding buckle (22) can move along the arrangement direction of the guide rod (216).

4. The water purifier cabinet according to claim 3, characterized in that, A locking section (217) is arranged on the side of the locking block (214) away from the sliding buckle (22), the locking section (217) is designed as an inclined surface, a release section (222) is arranged on the side of the sliding buckle (22) away from the sliding buckle (22), the release section (222) is designed as an inclined surface, the contact surface between the sliding buckle (22) and the locking block (214) is designed as a plane, and the sliding buckle (22) can move along the guide rod (216) to a position closely combined with the locking block (214).

5. The water purifier cabinet according to claim 4, wherein, A wedge-shaped block (221) is arranged on the side of the sliding buckle (22) towards the locking block (214), a containing groove (218) containing the wedge-shaped block (221) is arranged on the locking block (214), and the wedge-shaped block (221) enters or exits the containing groove (218) along with the movement of the sliding buckle (22).

6. The water purifier cabinet according to claim 1, wherein There are two locking assemblies (21), and the two locking assemblies (21) are symmetrically arranged along the central axis of the filter element seat (2).

7. The water purifier cabinet according to claim 1, wherein A second elastic member (23) is further arranged in the filter element seat (2), the second elastic member (23) is located between the filter element seat (2) and the filter element (3), and is used for applying a force to the filter element (3) away from the filter element seat (2).

8. A water purifier characterized by comprising: The water purifier comprises the water purifier cabinet according to any one of claims 1 to 7; the water purifier further comprises a filter core (3), the bottom outer side of the filter core (3) is provided with a boss (31), the boss (31) on the filter core (3) is in abutment with the locking assembly (21) on the filter core seat (2) to make the locking assembly (21) reciprocate, so that the water purifier cabinet can install or remove the filter core (3).