A cosmetic combination bottle structure

CN224440626UActive Publication Date: 2026-07-03JIANGSU NANFANG PACKAGING CO LTD

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: JIANGSU NANFANG PACKAGING CO LTD
Filing Date: 2025-08-08
Publication Date: 2026-07-03

AI Technical Summary

Technical Problem

The inner liner of existing cosmetic bottles does not hold well, making them prone to bacterial growth after prolonged use. Furthermore, they are inconvenient to replace, resulting in waste of cosmetic bottles.

Method used

Design a cosmetic combination bottle structure, which adopts a combination of an outer can, an inner liner, a return spring and a limiting ball. The inner liner is stably fixed by the cooperation of the limiting ball with the limiting groove and the return spring, and quick disassembly and assembly are achieved by the cooperation of the positioning groove and positioning buckle of the outer and inner caps.

Benefits of technology

It improves the efficiency and stability of inner liner replacement, enhances the sealing performance of bottle caps, facilitates the replacement of inner liner and bottle caps quickly, and reduces waste.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN224440626U_ABST

Patent Text Reader

Abstract

This utility model provides a cosmetic combination bottle structure, relating to the field of cosmetic bottle technology. It includes an outer can, with a storage tube fixedly connected to the inner side of the outer can. A return spring is fixedly connected to the inner side of the storage tube, and a limiting ball is fixedly connected to the end of the return spring. After prolonged use, the inner liner needs to be replaced. By grasping the gripping block, the inner liner is moved upwards, causing it to press against the limiting ball. This causes the limiting ball to press against the return spring and retract into the storage tube. The heat-sealed film is then removed, and the replacement inner liner is inserted into the outer can, pressing against the limiting ball. Once the inner liner is fully inserted, the return spring pushes the limiting ball into a limiting groove for fixation. Simultaneously, the gripping block engages with the locking groove, and the combination of fixing stripes and grooves increases the stability of the inner liner during fixation, improving replacement efficiency.

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