Screw Closure Plug Sealing Sleeve and Spring Tongues
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional screw caps for containers, especially those used for pressure-generating substances like carbonated beverages, face issues with resealability and corrosion, and existing solutions are not effective in preventing fluid leakage or contact corrosion.
Innovation Solution
A screw cap design featuring a sealing sleeve with spring tongues for secure retention, a conical sealing ring for fluid-tight sealing, and a hollow-cylindrical threaded piece that allows for easy insertion and removal, while preventing corrosion and maintaining sealing even under pressure fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional screw cap is used for sealing containers with corrosive liquids, then the filling process can be optimized with a large opening, but contact corrosion occurs at the opening edge and the plug seal becomes conditionally secure
Solution Approach 1:
The patent introduces a sealing sleeve as an intermediary component between the corrosive liquid and the screw cap. This sealing sleeve is in direct contact with the corrosive liquid, while the screw cap contacts only the sealing sleeve, not the corrosive liquid directly. This mediator prevents contact corrosion at the opening edge and ensures reliable sealing by distributing the sealing function across specialized components.
2Stability of the object's composition
If a screw cap is designed for pressure-generating substances, then pressure fluctuations can be absorbed, but the cap is not resealable or fluid-tight sealing cannot be ensured
Solution Approach 1:
The patent employs dynamic elements including spring tongues that can flex and adapt to pressure changes, and a deformable sealing ring that maintains contact under varying pressure conditions. The spring tongues provide resilient retention while allowing the sealing sleeve to maintain fluid-tight sealing even when pressure fluctuations occur, enabling both pressure absorption and reliable resealing.
3Reliability
If a sealing plug with spring tongues is used for retention, then the stopper is secured against falling out, but material consumption increases and manufacturing complexity rises
Solution Approach 1:
The patent applies spring tongues only at specific locations where retention is needed, rather than using a completely different retention mechanism for the entire device. The spring tongues are integrated into the sealing sleeve at strategic positions to provide secure retention while minimizing overall material consumption and maintaining relatively simple manufacturing processes.
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 screw cap provides reliable, leak-proof sealing and corrosion resistance, enabling safe transportation and storage of gas-forming and corrosive substances, and can be easily reused without compromising the container's integrity.
Implementation Method 1
the spring tongues snap away radially outwards after the stopper has been pressed in and thus form a resistance against being pulled out
Implementation Method 2
the sealing element prevents corrosive contact at the container opening in which the stopper is seated
Implementation Method 3
The sealing sleeve tapers conically pointing away from the annular flange
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a detachable screw-on plug (1) for arrangement in an opening of a container (10) and to the container (10) with the screw-on plug (1). The screw-on plug (1) has an annular flange (11) from the plane of the annular flange a sealing sleeve (12) extends longitudinally axially to a first side, which is designed to form a sealing recess in the opening of the container (10). The sealing sleeve (12) has at least one retaining element (13) on its outer surface (121), which, when the screw-on plug (1) is in use, bears against an edge (102) of the opening, and carries a sealing element (2). A hollow cylindrical threaded piece (14) extends longitudinally axially from the ring plane of the ring flange (11) to a second side, and the sealing sleeve (12) is conically tapered away from the ring flange (11).Furthermore, a container (10) is disclosed which is fluid-tight sealed with a screw cap plug (1) according to the invention.