Filter element device convenient to replace

Abstract

A filter element device convenient to replace comprises a filter barrel and a filter cover, the filter cover is arranged on the filter barrel, the filter cover comprises a circular cover body, an overturning handle, a pressing plate and a telescopic rack, a handle placing groove position is hollowed out in the middle of the cover body, and the overturning handle is assembled into the handle placing groove position through a rotating shaft and overturns relative to the cover body; a pressing plate is arranged between the overturning lifting handle and the lifting handle imbedding groove position, and a compression spring is clamped between the pressing plate and the telescopic rack; and a buckling position is arranged at the rear end of the overturning handle and is clamped on the convex strip of the telescopic rack. According to the filter element device convenient to replace, the telescopic rack can be driven by turning over the lifting handle, the telescopic rack is switched to the filter element locking / unlocking state in a push-pull mode, the operation can be completed only by pulling and turning over the lifting handle, the action process is simple, locking reliability and stability are guaranteed at the same time, and the filter element device is convenient to replace. The difficulty of autonomously replacing the filter element is reduced, and a user can use and replace the filter element more conveniently.

Description

[Technical Field]

[0001] This utility model relates to the field of water purification equipment filter element technology, and in particular to a filter element device that is easy to replace and has reliable locking. [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 invention addresses the problem that existing filter replacement structures require a large operating space by proposing a convenient filter replacement device that allows for easy and convenient replacement regardless of whether the filter is installed from the top or side.

[0004] This utility model relates to a convenient filter cartridge replacement device, which includes a filter barrel and a filter cover. The filter cover is fastened to the filter barrel. The filter cover is characterized by comprising a circular cover body, a flip handle, a pressure plate, and a telescopic rack. The cover body has a handle insertion slot hollowed out in the middle. The flip handle is assembled into the handle insertion slot via a pivot and flips relative to the cover body. A pressure plate is provided between the flip handle and the handle insertion slot, and a compression spring is clamped between the pressure plate and the telescopic rack. There is a buckle at the rear end of the flip handle, which is engaged with the protrusion of the telescopic rack.

[0005] The telescopic rack has two sections, namely the first telescopic rack and the second telescopic rack. The two racks are distributed on both sides of the same diameter of the circumference. At the same time, a small gear is provided at the symmetrical center of the two telescopic racks. The two telescopic racks mesh with the small gear at two points symmetrical to the center of the small gear.

[0006] A spring mounting shaft is provided on the side of the pressure plate facing the filter barrel. A compression spring is sleeved on the spring mounting shaft. A pinion mounting hole is opened on the spring mounting shaft. A mounting shaft is provided at the center of the pinion. The pinion is assembled into the pinion mounting hole with its mounting shaft.

[0007] The first telescopic rack is located below the flip handle buckle, and a protrusion is provided on the first telescopic rack.

[0008] The flip handle includes an integrally formed handle part, a pivot part, and a buckle position. The pivot part is connected between the handle part and the buckle position. The buckle position has a buckling structure in the opposite direction to the force direction of the handle part. The buckle position is engaged with the protrusion of the first telescopic rack by its buckling structure.

[0009] A bearing seat is provided on the inner wall of the filter barrel, and the rotating shaft of the flip handle is fitted into the bearing seat.

[0010] The filter barrel has a locking hole with a corresponding telescopic rack inside its circumferential wall. When the telescopic rack is inserted into the locking hole, the filter cover's degrees of freedom in the circumferential and axial directions are limited.

[0011] The present invention relates to a convenient filter replacement device, wherein the telescopic rack can be driven by flipping the handle, and the telescopic rack can be pushed and pulled to switch between locking and unlocking the filter. All actions can be completed by simply pulling the handle. The action process is simple and one-step, while ensuring the reliability and stability of locking, reducing the difficulty of self-replacing the filter, and making it more convenient for users to use and replace. [Attached Image Description]

[0012] Figure 1 This is a schematic diagram of the overall structure of a filter element that is easy to replace, as described in this utility model.

[0013] Figure 2 This is a schematic diagram of a filter element disassembly structure that allows for easy replacement, as described in this utility model.

[0014] Figure 3 This is a cross-sectional view of a filter element that is easy to replace, which is involved in this utility model;

[0015] Figure 4 This is a diagram of a pressure plate structure for a filter element that is easy to replace, as described in this utility model.

[0016] The components are as follows: 10. Filter barrel; 11. Bearing seat; 12. Locking hole; 20. Filter cover; 21. Cover body; 22. Flip handle; 221. Snap-on position; 2211. Snap-on structure; 222. Handle part; 223. Rotating shaft part; 23. Pressure plate; 231. Spring mounting shaft; 232. Pinion mounting hole; 24. Telescopic rack; First telescopic rack; 242. Second telescopic rack; 243. Protrusion; 25. Handle insertion slot; 30. Compression spring; 40. Pinion; 41. Mounting shaft.

Detailed Implementation Methods

[0017] 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.

[0018] 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.

[0019] Please refer to the attached document. Figure 1 and attached Figure 2 The invention illustrates a convenient filter cartridge replacement device, comprising a filter barrel 10 and a filter cover 20. The filter cover 20 is fastened onto the filter barrel 10. The filter cover 20 comprises a circular cover body 21, a flip handle 22, a pressure plate 23, and a telescopic rack 24. The cover body 21 has a handle insertion slot 25 hollowed out in the middle. The flip handle 22 is assembled into the handle insertion slot 25 via a pivot, flipping relative to the cover body 21. A pressure plate 23 is provided between the flip handle 22 and the handle insertion slot 25, and a compression spring 30 is clamped between the pressure plate 23 and the telescopic rack 24. A latching position 221 is located at the rear end of the flip handle 22, which latches onto the protrusion 243 of the telescopic rack 24.

[0020] The telescopic rack 24 has two sections, namely the first telescopic rack 241 and the second telescopic rack 242. The two racks are distributed on both sides of the same diameter of the circumference. At the same time, a pinion 40 is provided at the symmetrical center of the two telescopic racks. The two telescopic racks 24 mesh with the pinion 40 at two points symmetrical with respect to the center of the pinion 40.

[0021] Please refer to the attached document. Figure 2 and attached Figure 3 A spring mounting shaft 231 is provided on the side of the pressure plate 23 facing the filter barrel 10. This shaft is used to better fit and fix the compression spring 30 in the required position. At this time, the compression spring 30 needs to be pressed between the two telescopic racks 24, so it is limited by the spring mounting shaft 231 between the pinion 40 and the pressure plate 23. In order to better install the pinion 40, a pinion mounting hole 232 is opened on the spring mounting shaft 231 corresponding to the center position of the pinion 40. The pinion 40 is provided with a mounting shaft 41 at its center, and the pinion 40 is assembled into the pinion mounting hole 232 with its mounting shaft 41. The pinion 40 can rotate freely when its spatial position is fixed.

[0022] The first telescopic rack 241 is located below the buckle position 221 of the flip handle 22, and a protrusion 243 is provided on the first telescopic rack 241.

[0023] The flip handle 22 includes an integrally formed handle portion 222, a rotating shaft portion 223, and a latching position 221. The rotating shaft portion 223 connects the handle portion 222 and the latching position 221. The latching position 221 has a latching structure 2211 arranged in the opposite direction of the force direction of the handle portion. The latching position 221 uses its latching structure 2211 to lock onto the protrusion 243 of the first telescopic rack 241. As the flip handle 22 flips around the rotating shaft portion 223 as the center position, the handle portion 222 flips outward, while the latching position 221 moves inward in the opposite direction. The latching structure 2211 of the latching position 221 directly locks onto the protrusion 243 of the first telescopic rack 241, thus pulling the first telescopic rack 241 into the filter barrel. The first telescopic rack 241 is simultaneously engaged with the pinion 40. As the first telescopic rack 241 moves inward, it drives the pinion 40 to rotate. Meanwhile, the second telescopic rack 242, which is engaged at another point symmetrical to the center of the pinion 40, is driven to retract into the filter barrel as the pinion 40 rotates. The filter barrel 10 has a locking hole 12 corresponding to the telescopic rack in its circumferential wall. When the telescopic rack 24 is inserted into the locking hole 12, it limits the freedom of the filter cover 20 in the circumferential and axial directions. As both the first telescopic rack 241 and the second telescopic rack 242 are withdrawn from the locking hole 12 position of the filter barrel 10, the process of unlocking the filter barrel and the filter cover is realized.

[0024] The reverse unlocking process is as follows: After the flip handle 22 is lowered, the latching structure 2211 of the latch position 221 releases its pull on the protrusion 243 on the first telescopic rack 241. At this time, the compression spring, which is pressed between the telescopic racks, becomes the driving force for the racks to reset. The first telescopic rack 241 and the second telescopic rack 242 move outward relative to the pinion 40 and are inserted into the locking holes 12 on the corresponding filter barrel 10, thus locking the filter cover 20 onto the filter barrel 10.

[0025] A bearing seat 11 is provided on the inner wall of the filter barrel 10, and the rotating shaft 223 of the flip handle 22 is assembled and snapped into the bearing seat 11. The bearing seat 11 is used to support and receive the rotating shaft 223 of the flip handle 22, keeping the shaft from loosening and allowing for rotational freedom.

[0026] The present invention relates to a convenient filter replacement device, wherein the telescopic rack can be driven by flipping the handle, and the telescopic rack can be pushed and pulled to switch between locking and unlocking the filter. All actions can be completed simply by pulling and flipping the handle. The operation process is simple and complete in one step, while ensuring the reliability and stability of locking, reducing the difficulty of self-replacing the filter, and making it more convenient for users to use and replace.

[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 that facilitates easy replacement, comprising a filter cartridge and a filter cover, wherein the filter cover is snapped onto the filter cartridge, characterized in that, The filter cap includes a circular cap body, a flip handle, a pressure plate, and a telescopic rack. The cap body has a handle insertion slot cut out in the middle. The flip handle is assembled into the handle insertion slot via a pivot and flips relative to the cap body. A pressure plate is provided between the flip handle and the handle insertion slot, and a compression spring is clamped between the pressure plate and the telescopic rack. There is a buckle at the rear end of the flip handle, which is engaged with the protrusion of the telescopic rack.

2. The convenient filter replacement device according to claim 1, characterized in that, The telescopic rack has two sections, namely the first telescopic rack and the second telescopic rack. The two racks are distributed on both sides of the same diameter of the circumference. At the same time, a small gear is provided at the symmetrical center of the two telescopic racks. The two telescopic racks mesh with the small gear at two points symmetrical to the center of the small gear.

3. The convenient filter replacement device according to claim 2, characterized in that, A spring mounting shaft is provided on the side of the pressure plate facing the filter barrel. A compression spring is sleeved on the spring mounting shaft. A pinion mounting hole is opened on the spring mounting shaft. A mounting shaft is provided at the center of the pinion. The pinion is assembled into the pinion mounting hole with its mounting shaft.

4. The convenient filter replacement device according to claim 2, characterized in that, The first telescopic rack is located below the flip handle buckle, and a protrusion is provided on the first telescopic rack.

5. The convenient filter replacement device according to claim 4, characterized in that, The flip handle includes an integrally formed handle part, a pivot part, and a buckle position. The pivot part is connected between the handle part and the buckle position. The buckle position has a buckling structure in the opposite direction to the force direction of the handle part. The buckle position is engaged with the protrusion of the first telescopic rack by its buckling structure.

6. The convenient filter replacement device according to claim 5, characterized in that, A bearing seat is provided on the inner wall of the filter barrel, and the rotating shaft of the flip handle is fitted into the bearing seat.

7. The convenient filter replacement device according to any one of claims 1-6, characterized in that, The filter barrel has a locking hole with a corresponding telescopic rack inside its circumferential wall. When the telescopic rack is inserted into the locking hole, the filter cover's degrees of freedom in the circumferential and axial directions are limited.

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