A water purifying device with filter core convenient to replace

By using a locking groove and a locking block, rotating the threaded rod pushes the pressure block down to lock the cover, solving the problem of complicated filter replacement in water purification devices and achieving the effects of quick replacement and reduced maintenance costs.

CN224370832UActive Publication Date: 2026-06-19SICHUAN AIJING ZHONGHUA TRADING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN AIJING ZHONGHUA TRADING CO LTD
Filing Date
2025-03-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The replacement process for existing water purification devices is complex, time-consuming, and labor-intensive, especially when there is a lack of specialized tools. Furthermore, quick replacement devices with integrated housings are expensive and wasteful of resources.

Method used

The filter cartridge and filter unit are fastened and disassembled by using a locking groove and locking block in combination, and by rotating the threaded rod to push the pressure block down to lock the cover. The sealing performance is improved by using a sealing rubber layer and sealing texture, and the filter cartridge can be reused.

Benefits of technology

It enables quick replacement of filter elements, reduces maintenance costs, simplifies the operation process, and allows the filter unit to be reused.

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    Figure CN224370832U_ABST
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Abstract

This utility model relates to the technical field of water purification devices, specifically to a water purification device that facilitates filter replacement. It includes a mounting base and a filter unit. The mounting base has a locking cavity, and a locking cover is slidably mounted inside the locking cavity. The upper side of the locking cover is a first inclined surface sloping downwards from front to back. A pressure block is slidably mounted on the upper side of the locking cover, and the lower side of the pressure block is a second inclined surface that slides and fits against the first inclined surface. A threaded hole and a threaded rod communicating with the locking cavity are provided on the rear side of the mounting base, aligned with the pressure block. An insertion hole communicating with the locking cavity is provided on the lower side of the mounting base. A filter element is placed inside the filter unit, and the upper ends of the filter unit and the filter element are in contact with the lower side of the locking cover. A locking groove is provided on the wall of the insertion hole, and a locking block matching the locking groove is provided on the outer wall of the filter unit. This invention solves the problem that most filter replacements in the prior art are relatively complicated.
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