Press-Type Cosmetic Bottle Cap with Elastic Middle Ring
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Solution Overview
Problem
Cosmetic bottles in carry-on bags often experience leakage due to loose bottle caps caused by external forces like vibration, as the cap threads become disengaged from the bottle mouth.
Innovation Solution
A press-type cosmetic bottle design featuring a bottle body and cap connected via an elastic middle ring, which is deformed by a press block to securely engage or disengage from the bottle interface, preventing leakage and allowing easy cap removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional threaded bottle caps are used, then the structure is simple and easy to manufacture, but the bottle cap becomes loose under external force causing leakage
Solution Approach 1:
The middle ring is designed as an elastic component that can dynamically deform under pressure from the press block, transitioning between engaged and disengaged states. This dynamic elasticity allows the connection to adapt to external forces while maintaining secure attachment during normal use.
Solution Approach 2:
The elastic middle ring changes its physical state (deformed vs. restored shape) in response to applied force. When the press block applies pressure, the middle ring deforms to disengage; when pressure is released, it restores its shape to engage with the bottle interface, utilizing parameter changes in its elastic properties.
2Ease of operation
If the middle ring is made elastic to enable easy removal, then the cap can be easily detached, but the connection may be less secure under impact
Solution Approach 1:
The elastic middle ring automatically engages with the bottle interface without requiring additional fastening operations. The press block mechanism self-activates when pressure is applied, causing the middle ring to deform and disengage, then automatically returns to its engaged state when pressure is released, providing self-service functionality.
Solution Approach 2:
The system transitions between two stable states: engaged state for secure connection during normal use, and disengaged state for easy removal when pressure is applied. The dynamic elasticity allows the middle ring to switch between these states, providing both security and ease of operation.
3Ease of operation
If the middle ring deforms under pressure to disengage, then cap removal is simplified, but the pressing mechanism adds complexity
Solution Approach 1:
The pressing function is extracted as a separate, simple press block component that can be independently manufactured and assembled. This modular extraction allows the pressing mechanism to be added without redesigning the entire bottle cap structure, maintaining simplicity while enabling easy removal.
Solution Approach 2:
The bottle cap is segmented into distinct functional components: the outer cap, the elastic middle ring, and the press block. This segmentation allows each component to be optimized independently and simplifies the overall mechanism by dividing the pressing function from the sealing function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design ensures the bottle cap remains securely attached during external impacts, preventing leakage while allowing simple and effective cap removal, facilitating mass production with a practical and leak-tight structure.
Implementation Method 1
the middle ring is pressed by the press block to make the middle ring deform, so that by means of the deformation of the middle ring, the middle ring is controlled to hold the bottle interface or disengage from the bottle interface
Data Source
AI summary
A press-type cosmetic bottle has a bottle body and a bottle cap. The bottle body comprises a bottle base and a bottle interface which are integrated as a whole. The bottle cap comprises an outer cap, a connector connected to the outer cap, and a middle ring fixed on the connector. The outer cap is provided with a press hole, and a press block is provided in the press hole. The bottle interface is held by the middle ring so that the bottle body is tightly connected to the bottle cap, and thus the bottle cap is not easy to get loose under the impact of an external force. The middle ring is configured to be pressed by the press block to make the middle ring deform, so that the middle ring disengages from the bottle interface, thereby removing the bottle cap from the bottle body.