Container Cap Closed-Curve Sealing Against Air and Bacteria
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Solution Overview
Problem
Existing container caps allow for leakage of contents and introduction of moisture and bacteria 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 external air and bacteria ingress, using a single material for the cap and container to facilitate recycling and reduce costs.
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 reduced
Solution Approach 1:
The container cap integrates the sealing function directly into its structure by forming a closed curve that encloses the container inlet, eliminating the need for separate sealing members. This merging of functions reduces component count and assembly steps while maintaining sealing effectiveness.
Solution Approach 2:
The container cap structure serves multiple functions simultaneously: it provides closure for the container, creates a sealed environment through the closed curve configuration, and maintains compatibility with the container inlet without requiring additional sealing components.
2Reliability
If an inner ring is formed on 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 structure is divided into multiple close contact portions distributed around the container inlet, with each portion contributing to the overall sealed configuration. This segmentation allows for better distribution of contact pressure and more comprehensive blocking of harmful factors.
Solution Approach 2:
The sealing approach transitions from a single-plane contact (inner ring on cap surface) to a multi-dimensional configuration where close contact portions engage at multiple locations around the inlet, creating a three-dimensional sealed barrier that effectively blocks moisture and bacteria.
3Object-affected harmful factors
If multiple close contact portions forming a closed curve are used, then complete blocking of external air and bacteria is achieved, but device complexity increases
Solution Approach 1:
The closed curve configuration is formed by integrating multiple close contact portions into a single continuous structure on the container cap, merging what would otherwise be separate sealing elements into one unified component that achieves comprehensive sealing.
Solution Approach 2:
The container cap features localized close contact portions positioned at specific locations around the inlet where sealing is most critical. These localized structures concentrate sealing functionality where needed while maintaining overall structural simplicity.
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.