Filter element replacement device with locking structure

Abstract

The utility model relates to a filter core replacement device with locking structure, which comprises a filter barrel, a filter cover and a handle, wherein the filter cover is arranged on the filter barrel, the handle is arranged on the filter cover, a handle slot is arranged on the top of the filter cover, a locking slot is arranged on the side, and the handle is connected to the water inlet and outlet push rod through a rotary pushing structure; a water inlet and outlet butt joint end seat is arranged on the top of the filter barrel, and the water inlet and outlet push rod is movably inserted into the butt joint end seat and is driven by the rotary pushing structure along the axial direction to switch between the state of extending out of the locking slot and the state of retracting into the filter cover, the filter core replacement device with locking structure, by the handle driving the swing gear and the meshed fan-shaped gear, the water inlet and outlet push rod is pushed into and pushed out of the two action positions, and the state of locking and unlocking the filter cover and the filter barrel is switched, the space structure of replacing the filter core is optimized, the replacement mode is simplified, and the user replacement experience is improved.

Description

[Technical Field]

[0001] This utility model relates to the field of water purification equipment filter cartridge technology, and in particular to a filter cartridge replacement device with a convenient replacement and a locking structure. [Background Technology]

[0002] As living standards improve, people's demands for quality of life are also constantly increasing, leading to continuous upgrades and improvements in household appliances. Water purifiers are one such household electronic product that has become increasingly widespread in recent years, providing purified drinking water. The most important consumable in a water purifier is the filter cartridge. To maintain good purification performance, the filter cartridge needs to be replaced regularly. Therefore, a product that allows users to quickly, conveniently, and easily replace the filter cartridge is crucial for a positive user experience. Currently, the most common cartridge replacement methods are screw-on fastening and flip-lock mechanisms, which are extremely inconvenient and space-constrained, requiring the removal of the side panel for replacement. Furthermore, after replacement, the filter cartridge needs to be securely and stably locked to continue the water purification process. Therefore, the design requirement is to improve the design to create a filter cartridge replacement device that is convenient to use and reliably locks in place. [Summary of the Invention]

[0003] This utility model addresses the problem that existing filter replacement structures require a large operating space by proposing a convenient filter replacement device. It also improves the structural design of the inlet and outlet, and combines the functions of connecting the inlet and outlet nozzles with limiting and locking.

[0004] This utility model relates to a filter cartridge replacement device with a built-in locking structure. The device includes a filter barrel, a filter cover, and a handle. The filter cover is placed on the filter barrel, and the handle is provided on the filter cover. The filter cover has a handle groove on the top and a locking groove on the side. The handle is connected to the inlet / outlet push rod via a rotary push structure. The filter barrel has an inlet / outlet docking end seat on the top. The inlet / outlet push rod is movably inserted into the docking end seat and is axially driven by the rotary push structure to switch between extending out of the locking groove and retracting into the filter cover.

[0005] The rotary push structure includes a swing gear, a rotating shaft, a bearing seat, and a fan-shaped swing rod. The bearing seat is mounted on the docking end seat, the rotating shaft is pinned to the swing gear mounted on the bearing seat, and the swing gear is mounted on the handle side through a connector. The swing gear meshes perpendicularly with the axis of the fan-shaped swing rod, and the fan-shaped swing rod drives the inlet and outlet push rods.

[0006] The swing gear is an incomplete gear shape, with teeth evenly distributed on 1 / 4 to 1 / 2 of its circumference. A pivot hole is provided at the center of the pivot, and the pivot is installed on the swing gear through the pivot hole. The part of the swing gear without teeth on its circumference is connected to the handle through a folded connector.

[0007] The fan-shaped rocker arm includes a fan-shaped gear and a rotating shaft. The axis of the rotating shaft is perpendicular to the axis of the rotating shaft of the rocker gear. One side of the fan-shaped gear has teeth that mesh with the rocker gear, and the other side has a protruding rod that pushes the inlet and outlet water inlet.

[0008] The inlet / outlet push rod includes two pipes and a middle rod connecting the two pipes. A groove is provided on the middle rod in the direction of the handle, which is horizontally positioned between the two pipes. Waterproof rubber rings are fitted on the outer walls of the two pipes, and the waterproof rubber rings are adapted between the outer circumferential surfaces of the two pipes and the inner wall surface of the docking end seat.

[0009] The inlet / outlet push rod has a groove on its middle rod, and the fan-shaped rocker arm is connected to the inlet / outlet push rod in a transmission manner by having its protrusion engage with the groove.

[0010] The filter cartridge replacement device with a built-in locking structure involved in this utility model uses a handle to drive a swing gear and a meshing sector gear, thereby pushing the inlet and outlet water in two action positions: retracting and pushing out. This switches between locking / unlocking the filter cover and filter canister, optimizing the spatial structure for replacing the filter cartridge, simplifying the replacement method, and improving the user replacement experience. [Attached Image Description]

[0011] Figure 1 This is a schematic diagram of the overall structure of a filter replacement device with a built-in locking structure involved in this utility model;

[0012] Figure 2 This is a schematic diagram of the disassembled structure of a filter replacement device with a built-in locking structure involved in this utility model;

[0013] Figure 3 This is a schematic diagram of the rotating push structure of a filter replacement device with a built-in locking structure, which relates to this utility model.

[0014] Figure 4 This is a cross-sectional view of a filter replacement device with a built-in locking structure, which relates to this utility model.

[0015] The components are as follows: 10. Filter barrel; 11. Connecting end seat; 20. Filter cover; 21. Handle groove; 22. Locking groove; 30. Handle; 40. Rotary push structure; 41. Swing gear; 411. Shaft hole; 42. Shaft; 43. Shaft seat; 44. Fan-shaped swing rod; 441. Fan-shaped gear; 442. Shaft; 443. Protruding rod; 50. Inlet / outlet push rod; 51. Pipe; 52. Intermediate rod; 53. Groove; 54. Waterproof rubber ring;

Detailed Implementation Methods

[0016] The present invention will now be described in detail with reference to the embodiments. The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0017] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship, and 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, and therefore should not be construed as a limitation of this utility model.

[0018] Please refer to the attached document. Figure 1 The invention relates to a filter cartridge replacement device with a built-in locking structure. The device includes a filter barrel 10, a filter cover 20, and a handle 30. The filter cover 20 is placed on the filter barrel 10, and the handle 30 is provided on the filter cover 20. The filter cover 20 has a handle groove 21 on its top and a locking groove 22 on its side. The handle 30 is connected to the inlet / outlet push rod 50 via a rotary push structure 40. The filter barrel 10 has an inlet / outlet docking end seat 11 on its top. The inlet / outlet push rod 50 is movably inserted into the docking end seat 11 and is driven axially by the rotary push structure 40, switching between extending out of the locking groove 22 and retracting into the filter cover 20.

[0019] When replacing the filter element using this filter element replacement device, simply lift the handle 30 and rotate the handle 30 to push the structure 40, which will automatically retract the inlet / outlet push rod 50. The rod will then retract into the filter cover 20 via the locking groove 22, allowing the filter element to be easily removed. After replacing the filter element, simply press the handle 30 into the filter element holder, which will push the inlet / outlet push rod 50 to extend automatically. Resetting the filter element handle fixing seat will lock the filter element body in place.

[0020] The rotary push structure 40 includes a swing gear 41, a rotating shaft 42, a bearing seat 43, and a fan-shaped swing rod 44. The bearing seat 43 is mounted on the docking end seat 11. The rotating shaft 42 is pinned to the swing gear 41, which is mounted on the bearing seat 43. The swing gear 41 is mounted on the handle side via a connector. The swing gear 41 meshes perpendicularly with the axis of the fan-shaped swing rod 44, which drives the inlet / outlet push rod 50. The rotary push structure essentially converts the lifting / lowering action of the handle into the pulling / pushing action of the inlet / outlet push rod 50. This action is achieved through the coordinated action of the swing gear 41 and the fan-shaped swing rod 44.

[0021] The swing gear 41 is an incomplete gear, with teeth evenly distributed on a circumference of 1 / 4 to 1 / 2. Since the swing gear 41 is directly driven to rotate by the handle 30, and the rotation range of the handle 30 is limited, the swing gear 41 only needs to move the next transmission component within a limited range. Therefore, it is designed as a partial gear, and the part without gears can be used to connect with the handle 30.

[0022] A pivot hole 411 is provided at its center position. The pivot 42 passes through the pivot hole 411 and is mounted on the swing gear 41. The part of the swing gear without teeth is connected to the handle 30 through a folded connector 31.

[0023] The fan-shaped swing arm 44 includes a fan-shaped gear 441 and a rotating shaft 442. The axis of the rotating shaft 442 is perpendicular to the axis of the rotating shaft 42 of the swing gear 41. The fan-shaped gear 441 has teeth on one side that mesh with the swing gear 41 and a protruding rod 443 that pushes the inlet and outlet water inlet on the other side.

[0024] The inlet / outlet push rod 50 includes two pipes and a middle rod 52 connecting the two pipes 51. A groove running horizontally between the two pipes is provided on the middle rod 52 facing the handle. Waterproof rubber rings 54 are fitted onto the outer walls of the two pipes 51, fitting between the outer circumferential surface of the two pipes 51 and the inner wall surface of the connecting end seat 11. The waterproof rubber rings 54 are used to prevent water leakage.

[0025] A groove is provided on the intermediate rod 52 of the inlet / outlet push rod 50. The fan-shaped swing rod 44 is connected to the inlet / outlet push rod 50 in a transmission manner by having its protrusion 443 engage with the groove. When the fan-shaped swing rod 44 rotates, the protrusion 443 also rotates, resulting in displacement in both the lateral and longitudinal directions. The lateral displacement is achieved by the width spanned by the groove itself, while the longitudinal displacement is achieved by pulling / pushing the inlet / outlet push rod.

[0026] The filter cartridge replacement device with a built-in locking structure involved in this utility model uses a handle to drive a swing gear and a meshing sector gear, thereby pushing the inlet and outlet water in two action positions: retracting and pushing out. This switches between locking / unlocking the filter cover and filter canister, optimizing the spatial structure for replacing the filter cartridge, simplifying the replacement method, and improving the user replacement experience.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A filter cartridge replacement device with a built-in locking structure, the device comprising a filter barrel, a filter cover, and a handle, wherein the filter cover is disposed on the filter barrel, and a handle is provided on the filter cover, characterized in that, The filter cover has a handle groove on the top and a locking groove on the side. The handle is connected to the inlet / outlet push rod by a rotating push structure. The filter barrel has an inlet / outlet docking end seat on the top. The inlet / outlet push rod is movably inserted into the docking end seat and is driven axially by the rotating push structure to switch between extending out of the locking groove and retracting into the filter cover.

2. The filter replacement device with a built-in locking structure according to claim 1, characterized in that, The rotary push structure includes a swing gear, a rotating shaft, a bearing seat, and a fan-shaped swing rod. The bearing seat is mounted on the docking end seat, the rotating shaft is pinned to the swing gear mounted on the bearing seat, and the swing gear is mounted on the handle side through a connector. The swing gear meshes perpendicularly with the axis of the fan-shaped swing rod, and the fan-shaped swing rod drives the inlet and outlet push rods.

3. The filter element replacement device with a built-in locking structure according to claim 2, characterized in that, The swing gear is an incomplete gear shape, with teeth evenly distributed on 1 / 4 to 1 / 2 of its circumference. A pivot hole is provided at the center of the pivot, and the pivot is installed on the swing gear through the pivot hole. The part of the swing gear without teeth on its circumference is connected to the handle through a folded connector.

4. The filter element replacement device with a built-in locking structure according to claim 2, characterized in that, The fan-shaped rocker arm includes a fan-shaped gear and a rotating shaft. The axis of the rotating shaft is perpendicular to the axis of the rotating shaft of the rocker gear. One side of the fan-shaped gear has teeth that mesh with the rocker gear, and the other side has a protruding rod that pushes the inlet and outlet water inlet.

5. The filter element replacement device with a built-in locking structure according to claim 4, characterized in that, The inlet / outlet push rod includes two pipes and a middle rod connecting the two pipes. A groove is provided on the middle rod in the direction of the handle, which is horizontally positioned between the two pipes. Waterproof rubber rings are fitted on the outer walls of the two pipes, and the waterproof rubber rings are adapted between the outer circumferential surfaces of the two pipes and the inner wall surface of the docking end seat.

6. The filter element replacement device with a built-in locking structure according to claim 5, characterized in that, The inlet / outlet push rod has a groove on its middle rod, and the fan-shaped rocker arm is connected to the inlet / outlet push rod in a transmission manner by having its protrusion engage with the groove.

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