Sealing Cap Symmetric Force Distribution for Balanced Sealing
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Solution Overview
Problem
Conventional sealing caps experience unbalanced forces during operation, leading to the inner cap becoming oblique relative to the outer cap due to centrally connected operator units and resilient members, which compromises the sealing effectiveness.
Innovation Solution
The sealing cap design features two spaced-apart resilient members and connectors that distribute forces symmetrically, allowing the inner cap to move uniformly between pressurizing and unpressurizing positions, preventing tilting and ensuring balanced operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the operator unit and resilient member are centrally connected to the outer and inner caps, then the structure is simplified and easier to manufacture, but the forces become localized at the center causing the inner cap to become oblique relative to the outer cap
Solution Approach 1:
The single central resilient member is segmented into two separate resilient members positioned at different locations between the outer cap and inner cap. This segmentation distributes the urging forces across multiple points rather than concentrating them at a single center point, preventing the inner cap from becoming oblique while maintaining structural simplicity
Solution Approach 2:
The operator unit is designed with an asymmetric configuration where the operator pivots about a point that is offset from the centerline of the inner cap. This asymmetric arrangement creates a moment that counteracts the tendency of the inner cap to become oblique under applied forces, ensuring the inner cap remains aligned with the outer cap during operation
2Device complexity
If the operator unit is centrally positioned, then the device complexity is reduced, but the force distribution becomes unbalanced causing oblique positioning of the inner cap
Solution Approach 1:
The resilient member is divided into two separate resilient members positioned at different locations between the outer cap and inner cap. This segmentation distributes the urging forces across multiple points, creating balanced force distribution that enables smooth, oblique-free operation while maintaining a simple overall device structure
Solution Approach 2:
The connector serves as an intermediary element that transmits forces from the operator unit to the inner cap through the resilient members. This intermediary mechanism ensures that forces are distributed evenly and the inner cap moves smoothly without becoming oblique during operation
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
This design ensures the inner cap remains balanced and uniformly pressurizes the air-tight gasket, effectively sealing the container by distributing forces symmetrically and maintaining alignment between the outer and inner caps.
Implementation Method 1
The resilient member 13 is abuttingly disposed between the outer and inner caps 11, 121
Data Source
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AI summary
A sealing cap includes an outer cap (3), an inner cap (41) and an air-tight gasket (42). The outer cap (3) is to be disposed on a container (2). The inner cap (41) is movably connected beneath the outer cap (3). The air-tight gasket (42) is sleeved around the inner and outer caps (3, 41). Two connectors (62) extend through the outer cap (3) and are connected to the inner cap (41). An operator (61) is disposed above the outer cap (3) and is pivotally connected to the connectors (62). The operator is operable to move the inner cap (41) relative to the outer cap (3) between a pressurizing position, where the inner cap (41) pressurizes the air-tight gasket (42) against the container (2), and an unpressurizing position, where the inner cap (41) unpressurizes the air-tight gasket (42) against the container (2).