Sealing Cover Double Seal Ring Vacuum Retention
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Solution Overview
Problem
Conventional sealing covers for containers with varying openings are prone to breakage, require high effort for latching and alignment, and do not maintain vacuum conditions effectively, leading to air leakage and deformation issues.
Innovation Solution
A sealing cover design featuring an annular jutting portion with two blade-type seal rings and an air permeable parasol valve that allows for secure sealing and vacuuming without anchor jutting portions or air vents, ensuring easy operation and maintaining container shape integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If latch ledges are rotated and latched repeatedly, then the cover can be securely fastened, but the latch ledges are prone to break or fracture at the joined locations
Solution Approach 1:
The latch ledge is divided into a body portion and a latch portion connected by a groove, allowing relative movement between segments. This segmentation enables the latch portion to rotate and latch while the body portion remains stable, reducing stress concentration at the joined location and preventing breakage through repeated operation
Solution Approach 2:
The groove between the body portion and latch portion changes the structural parameters by creating a flexible connection. This allows the latch portion to rotate and engage with anchor portions while accommodating stress through the groove geometry, thereby improving durability without compromising strength
2Strength
If the thickness at the joined locations is increased to reduce the risk of breaking or fracturing, then the latch ledge strength is improved, but a greater effort is required to latch and disengage the latch ledges
Solution Approach 1:
Instead of increasing overall thickness, the latch ledge is segmented into body and latch portions connected by a groove. This allows the latch portion to be thinner and more flexible, reducing the effort needed to rotate and engage it, while the body portion maintains sufficient thickness for strength
Solution Approach 2:
The groove creates a local quality difference where the latch portion has different structural properties than the body portion. The latch portion is designed to be more flexible and easier to move, while the body portion maintains strength, thereby reducing latching effort without compromising overall strength
3Manufacturing precision
If the apertures of the latch ledges are aligned accurately with the anchor portions, then a tight coupling is formed, but the opening of the container becomes difficult to maintain a desired integrity
Solution Approach 1:
Instead of requiring precise alignment of apertures with anchor portions, the design inverts the approach by using a continuous annular jutting portion that surrounds the opening. This eliminates the need for precise point-to-point alignment while maintaining tight coupling through the continuous contact of the seal ring along the entire circumference
Solution Approach 2:
The discrete aperture-and-anchor portion alignment system is extracted and replaced with a continuous annular structure. This removes the alignment requirement entirely while maintaining the sealing function through the continuous seal ring that contacts the container opening along its entire perimeter
4Shape
If a blade type sealing ring with an air vent is used, then the opening of the container can maintain the original shape, but the air vent damages the sealing effect
Solution Approach 1:
The air vent is extracted from the seal ring structure entirely. Instead of having an air vent in the center of the seal ring, the design uses a continuous annular seal ring without openings, maintaining the sealing effect while the annular jutting portion maintains the opening shape through its surrounding structure
5Adaptability or versatility
If conventional sealing covers are used, then sealing function is provided, but vacuuming function is not provided
Solution Approach 1:
The cover is designed with multi-functionality by integrating both sealing and vacuuming capabilities into a single structure. The annular seal ring provides sealing function, while the air permeable membrane with valve structure provides vacuuming function, allowing the same cover to perform both sealing and vacuum extraction without requiring separate components
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 double seal ring design provides enhanced sealing and vacuum retention, preventing air leakage and deformation, while simplifying fabrication and operation, allowing for secure sealing and vacuuming without alignment issues or air vent damage.
Implementation Method 1
an air permeable parasol valve installed on the coupling opening
Implementation Method 2
the double seal ring design provides enhanced sealing and vacuum retention, preventing air leakage
Data Source
AI summary
A sealing cover includes a cover coupling with a seal ring which has two blades to form a double sealing effect. Thus a container can be sealed by the cover more securely and the opening of the container can be maintained intact. The cover also has a coupling opening and a plurality of air vents. The coupling opening is coupled with an air permeable parasol valve which can release air to facilitate capping of the cover on the opening of the container. Through an air suction means the container can be vacuumed.