Container Cap Sealing Structure for Blocking Air and Bacteria
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Solution Overview
Problem
Existing container caps allow moisture and bacteria to enter or contents to leak due to gaps between the container inlet and cap, and existing solutions either increase manufacturing costs or fail to completely block external air and bacteria.
Innovation Solution
A container cap design with multiple close contact portions forming a closed curve around the container inlet to prevent moisture, air, and bacteria ingress, using a single material like synthetic resin for the cap and container to facilitate recycling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member is mounted to the top surface of the container inlet, then sealing performance is improved, but manufacturing cost increases and recyclability is lost
Solution Approach 1:
The sealing function is merged into the container cap structure itself through the close contact portions that form a closed curve around the container inlet. The cap body integrates the sealing mechanism, eliminating the need for separate sealing members and reducing manufacturing steps while maintaining effective sealing performance.
Solution Approach 2:
The container cap structure inherently provides sealing functionality through its close contact portions that automatically engage with the container inlet. The design allows the cap to seal itself without requiring additional components or complex assembly processes, reducing both cost and enhancing recyclability.
2Reliability
If an inner ring is formed on the inner bottom surface of the container cap, then sealing is improved, but complete blocking of moisture and bacteria cannot be achieved due to tolerance gaps
Solution Approach 1:
The sealing function is divided into multiple close contact portions distributed around the container inlet, forming a closed curve. This segmentation creates multiple contact points that collectively provide complete sealing, eliminating the tolerance gaps present in single-ring designs and preventing moisture and bacteria ingress.
Solution Approach 2:
The close contact portions are strategically positioned at specific locations around the container inlet to maximize sealing effectiveness. Each contact portion is designed with optimized geometry to ensure intimate contact with the inlet surface, creating a comprehensive barrier against harmful factors.
3Reliability
If packing is mounted to the inner space of the container cap, then sealing is improved, but device complexity increases
Solution Approach 1:
The sealing function is merged directly into the container cap body through integrated close contact portions, eliminating the need for separate packing components. This integration simplifies the overall structure while maintaining effective sealing, reducing both device complexity and manufacturing steps.
Data Source
AI summary
A container cap which is combined with a container containing a beverage or the like, and a container combined with the container cap. The container cap is combined with a container inlet of a container body. A plurality of close contact portions in contact with the container inlet are formed, and the close contact portions form a closed curve enclosing the container inlet so as to block inflow of external air from the outside into the container body.