Expandable Sealing Cover for Container Opening Closure
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Solution Overview
Problem
Conventional containers, such as wine cups, lack a sealing mechanism, leading to wine waste when not fully consumed and are inconvenient to carry due to increased weight and bulk when multiple containers are carried.
Innovation Solution
A sealing cover comprising an outer cover, inner baffle cover, screw rod, and flexible sealing ring that expands to seal the container's opening when the rotary knob is turned, utilizing a threaded connection and guide planes for reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a conventional open container (wine cup) is used, then the container is simple in structure and easy to manufacture, but the liquid cannot be sealed leading to waste when not fully consumed
Solution Approach 1:
The sealing cover is divided into multiple functional components: an outer cover for covering the opening, an inner baffle cover for supporting the sealing ring, a screw rod for transmitting force, and a flexible sealing ring for creating the seal. This segmentation allows each component to perform its specific function efficiently while maintaining overall simplicity
Solution Approach 2:
The patent employs a flexible sealing ring made of elastic material that can deform under compression to conform to the inner peripheral wall of the container opening, creating an effective seal. The flexibility of this thin film component enables adaptation to slight variations in opening shape while maintaining sealing integrity
2Quantity of substance
If a full wine bottle and wine glass are carried for travel, then sufficient wine is available, but the carrying weight and bulk increase making transport inconvenient
Solution Approach 1:
The sealing cover components are designed to nest within each other: the inner baffle cover fits within the outer cover, and the flexible sealing ring can be stored within the cover assembly when not in use. This nested arrangement minimizes the space required for carrying the sealing components
Solution Approach 2:
The sealing mechanism transforms from a static rigid structure to a dynamic system where the flexible sealing ring can expand and contract. When sealed, the ring expands to contact the container opening; when not in use, it contracts to a smaller profile, enabling compact storage and portability
3Reliability
If a sealing mechanism is added to the container, then liquid sealing is achieved, but the device complexity increases
Solution Approach 1:
The sealing function is extracted as a separate removable component (the flexible sealing ring) that can be independently installed and removed from the cover assembly. This extraction allows the sealing mechanism to be maintained separately from the main container structure, simplifying both the container design and the sealing component design
Solution Approach 2:
The flexible sealing ring utilizes its own elastic properties to create the sealing action. When compressed by the inner baffle cover moving upward, the ring automatically expands and conforms to the container opening shape without requiring additional sealing surfaces or complex adjustment mechanisms. The elastic material itself provides the sealing force
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 sealing cover effectively prevents wine waste by sealing the container, allowing for convenient storage and transport of a suitable amount of liquid without increasing carrying weight or bulk.
Implementation Method 1
the flexible sealing ring is forced to expand to be fitted and sealed with the inner peripheral wall of the opening
Implementation Method 2
the upper end of the screw is in threaded connection with the knob; when the rotary knob rotates, the screw rod drives the inner baffle cover to move upwards
Data Source
AI summary
Disclosed is a sealing cover, which is suitable for sealing an opening of a container, comprising an extrusion lid and a flexible sealing ring, wherein the container has an opening, the extrusion lid comprises an outer cover, an inner shield cover, a screw rod and a knob, the outer cover covers the opening, and the inner shield cover is arranged in the opening and is located under the outer cover; the screw rod movably penetrates the outer cover, the lower end of the screw rod is fixedly connected to the inner shield cover, and the upper end of the screw rod is connected in a threaded manner to the knob; and the flexible sealing ring is sheathed on the screw rod and is located between the outer cover and the inner shield cover, and when the knob is rotated, the screw rod drives the inner shield cover to move upwards and squeezes the flexible sealing ring to force the flexible sealing ring to be attached to an inner circumferential wall of the opening after expansion to form a seal. The sealing cover provided by the present invention can seal the opening of a container, and the sealing cover has a simple structure, is convenient to use, and has a good sealing effect.