Container Cap With Elastic Ring and Cone Section for Airtight Sealing
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Solution Overview
Problem
The existing container with a cap fails to maintain high airtightness, especially when the internal pressure exceeds external pressure, and cannot store volatile contents effectively due to the weak sealing mechanism that relies on elastic deformation for cap removal.
Innovation Solution
A container design featuring a cap that can be easily removed by elastic deformation of an elastic ring body, with a cone section on the container body and a fitting section that engages the cap, ensuring a stronger seal and airtightness through a dual engagement mechanism with adjustable engaging strengths and angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cap is designed to be easily removed by elastic deformation of the ring body, then the ease of operation is improved, but the airtightness deteriorates
Solution Approach 1:
The engagement structure is divided into two independent sections: the first engaging section with the elastic ring body for easy cap removal, and the second engaging section with the cone section for maintaining airtightness. This segmentation allows each section to optimize its function without compromising the other.
Solution Approach 2:
Different regions of the cap-container interface have different engagement strengths. The first engaging section (elastic ring) provides weak engagement for easy removal, while the second engaging section (cone section) provides strong engagement for airtight sealing. This local differentiation of engagement quality resolves the contradiction between ease of operation and airtightness.
2Reliability
If the engaging strength is increased to maintain airtightness, then the reliability is improved, but the ease of operation deteriorates
Solution Approach 1:
The engagement structure is divided into two independent parts: the first engaging section with the elastic ring body that provides easy removal capability, and the second engaging section with the cone section that ensures strong airtight sealing. This segmentation allows the system to achieve both easy operation and high reliability simultaneously.
Solution Approach 2:
The elastic ring body provides dynamic engagement that can be easily activated by finger pressure, allowing the cap to be removed with minimal force. This dynamic characteristic of the first engaging section contrasts with the static strong engagement of the second section, enabling both ease of operation and airtightness.
3Ease of operation
If the elastic deformation mechanism is used for cap removal, then the ease of operation is improved, but the sealing performance deteriorates
Solution Approach 1:
The sealing function is separated from the elastic deformation mechanism. The first engaging section uses elastic deformation for easy removal, while the second engaging section (cone section) maintains the sealing function through a different mechanism that is not compromised by elastic deformation.
Solution Approach 2:
The cone section acts as an intermediary structure that maintains the sealing relationship between the cap and container body independently of the elastic ring body's deformation. This intermediary engagement structure ensures that sealing performance is not degraded when the elastic ring deforms for cap removal.
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 container achieves easy cap removal with a light operating force while maintaining high airtightness, allowing for the storage of volatile contents and withstanding increased internal pressure without leakage.
Implementation Method 1
an elastic ring body surrounded by the peripheral side wall to be elastically deformable in a radial direction
Data Source
AI summary
A cap is engaged with a container at two positions, one being a fitting section between the container and an elastic ring body provided inside of the cap to be deformable from outside of the cap, the other being an engaging section between the container and engaging pieces provided on the cap. An engaging strength of the fitting section is set stronger than an engaging strength of the engaging section. The engagement at the fitting section is released when the elastic ring body is pushed from outside of the cap and deformed.