Quick-Sealing Cover With Wedge Ring Compression for Non-Round Mouths
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Solution Overview
Problem
Existing cup and bottle covers with threaded connections cause friction that damages the seal ring, leading to rubber debris inside the container and are not suitable for non-round mouth shapes, and previous solutions like the gland-type vacuum cup are aesthetically unpleasing and inconvenient to store or carry.
Innovation Solution
A quickly-sealing cover with a cover body that has a partially embedded lower end with an inward-retracted bevel edge forming a wedge-shaped opening, a push pedal with a sealing ring that moves upward to embed into the opening, and a rotating lifting element with a spiral guide groove to secure the seal, eliminating the need for screws and allowing for non-circular mouth shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a threaded connection with seal ring is used for the cover, then airtightness is improved, but friction damages the seal ring causing rubber debris and the design is limited to round mouths only
Solution Approach 1:
The patent extracts the seal ring from the threaded connection structure and places it in a separate sealing cavity. The seal ring is compressed axially by a pushing component rather than being subjected to rotational friction, separating the sealing function from the fastening function and eliminating rubber debris generation.
Solution Approach 2:
Instead of rotating the cover to tighten the seal ring along the thread, the patent inverts the sealing mechanism by using axial compression of the seal ring through the pushing component. This reverses the sealing action from rotational to linear, eliminating friction-based damage.
2Reliability
If a threaded connection with seal ring is used for the cover, then airtightness is improved, but the design is limited to round mouths only
Solution Approach 1:
The patent creates a universal sealing structure where the sealing cavity and seal ring can accommodate various mouth shapes (round, square, oval, etc.). The pushing component applies axial force that works effectively regardless of the mouth geometry, making the cover adaptable to multiple container types.
3Reliability
If a gland-type vacuum cup with exposed steel wire and moving piece is used, then sealing is achieved, but aesthetic appearance is compromised and storage convenience is reduced
Solution Approach 1:
The patent nests the pushing component, seal ring, and sealing cavity within the cover body structure. All sealing components are hidden inside the cover, with only the exterior surface visible, eliminating exposed wires and moving pieces while maintaining the sealing function.
4Ease of operation
If manual tightening of cup cover is used to compress seal ring, then sealing is achieved, but the structure is simple yet causes friction damage
Solution Approach 1:
The patent replaces the rotational mechanical tightening system with a linear pushing mechanism. The lifting component converts rotational motion into axial linear motion that directly compresses the seal ring, substituting the friction-based rotational system with a friction-free linear compression system.
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 solution achieves a perfect sealing effect without rubber debris and allows for secure attachment to any mouth shape, enhancing usability and aesthetics by eliminating exposed metal components and improving handling.
Implementation Method 1
The bearing spring is placed between the push pedal and cover body
Implementation Method 2
The bearing spring is placed between the push pedal and cover body
Implementation Method 3
a guide block that is flexibly embedded into a spiral guide groove that is placed on the outer wall of the lifting element; when the lifting element rotates, the guide block may move in the spiral guide groove, driving the push pedal to move upward and downward
Implementation Method 4
cover is firmly attached to the mouth edge of cup body or bottle body due to static friction force increased
Data Source
AI summary
A quickly-sealing cover having a cover body matched with a cup body or bottle body, in which the lower end of cover body is partially embedded. The outer wall at the lower end is equipped with an inward-retracted bevel edge, forming a wedge-shaped opening surrounding the lower end. Below the cover body a push pedal is flexibly installed on which a sealing ring is equipped. The upper edge of the sealing ring is opposite the wedge-shaped opening. The upper edge of the sealing ring is embedded into the wedge-shaped opening when the push pedal moves upward. This achieves a perfect sealing effect between cover body and cup body or bottle body. The cover is firmly attached to the mouth edge of cup body or bottle body due to static friction force increased, without screw connection, thus the mouth edge may be in any form in addition to circle.