Dual-Structure Stopper With Interlocking Protrusions Prevents Leakage
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Solution Overview
Problem
Existing container stoppers often leak when discharging liquid substances, causing inconvenience to users due to gaps between the stopper and container body.
Innovation Solution
A stopper and container design featuring a dual structure with protrusions and grooves that interlock to prevent leakage, including a first protrusion on the inner part, a second protrusion on the coupling portion, and a third protrusion on the external part, providing a stable and secure coupling mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple stopper structure is used, then the device complexity is reduced, but leakage occurs between the container body and stopper
Solution Approach 1:
The stopper body is divided into multiple functional parts: an inner part with a first protrusion for sealing against the container's inner surface, and an external part with a third protrusion for engagement with the container's outer surface. The coupling portion connects these parts and includes a second protrusion. This segmentation allows each part to perform its specific function while collectively preventing leakage.
Solution Approach 2:
Different regions of the stopper have different structural characteristics tailored to their specific functions: the inner part has a protrusion for creating a seal against the inner surface, the coupling portion has a protrusion for structural connection, and the external part has a protrusion for external engagement. This local differentiation of structural quality ensures optimal performance at each interface.
2Reliability
If a dual structure with protrusions and grooves is used, then leakage prevention is improved, but the device complexity increases
Solution Approach 1:
The coupling portion merges the inner part and external part into a unified structure, connecting them through a shared body that includes the second protrusion. This merging ensures coordinated movement and sealing between the inner and external parts while maintaining structural integrity, achieving reliable leakage prevention without excessive complexity.
3Manufacturing precision
If multiple protrusions are used for coupling, then assembly precision is improved, but the manufacturing complexity increases
Solution Approach 1:
The protrusions and corresponding grooves are pre-formed during the stopper manufacturing process, establishing precise alignment features before assembly. The first protrusion aligns with the container's inner surface, the second protrusion aligns with the coupling portion, and the third protrusion aligns with the external surface, ensuring accurate assembly without requiring complex post-manufacturing adjustments.
Data Source
AI summary
Disclosed is a stopper and a container having the same including a stopper body including an upper part having a discharge hole, and a side part, having at least a dual structure, including an inner part and an external part which are spaced apart from each other and a coupling portion coupling the inner part and the external part at a top of the inner part and the external part, wherein the side part may include a first protrusion at the top of the inner part, a first groove at the coupling portion and a second protrusion between the first groove and the external part.