Drinking Vessel Vent Channel for Leak-Proof Cap Ventilation
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Solution Overview
Problem
Existing drinking containers with drinking attachments face challenges in achieving reliable ventilation while maintaining leak-proof integrity, especially when subjected to different tightening torques and angles, leading to high production costs and inefficiencies in sealing and ventilation.
Innovation Solution
A drinking container design featuring a ventilation channel in the annular flange that extends radially and circumferentially around the vessel opening, with a cross-sectional area between 0.02 to 0.08 mm² and a modulus of elasticity of at least 0.2 kN/mm², ensuring liquid-tight contact and adequate ventilation, preventing leakage even when the container is tipped.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ventilation channels are made larger or more numerous to improve ventilation, then air flow is improved, but liquid leakage risk increases
Solution Approach 1:
The patent employs a flexible membrane structure that forms the wall of the ventilation channel. This membrane can deform elastically under pressure: it remains open during normal ventilation to allow air flow, but automatically closes when liquid pressure exceeds a certain threshold, preventing leakage. This resolves the contradiction by making the ventilation channel dynamically adaptive rather than statically fixed.
Solution Approach 2:
The patent changes the physical state and properties of the ventilation channel by using an elastomeric material whose mechanical properties (flexibility, elasticity) allow it to respond to pressure changes. The material's ability to deform and recover enables the channel to transition between open and closed states based on pressure conditions, simultaneously achieving reliable ventilation and leakage prevention.
2Reliability
If different setting angles of sealing surfaces are used to improve sealing, then sealing reliability is improved, but production costs increase due to soft components
Solution Approach 1:
The patent changes the material parameter from rigid to elastomeric for the annular flange containing the ventilation channel. This material selection allows the sealing surfaces to be set at fixed angles during manufacturing, eliminating the need for complex adjustments or soft components. The elastomeric material's inherent flexibility provides sealing capability while maintaining simple, cost-effective manufacturing processes.
3Object-generated harmful factors
If radial grooves are made shorter to prevent liquid leakage, then leakage prevention is improved, but ventilation capability deteriorates
Solution Approach 1:
The ventilation channel is formed as a groove in the elastomeric material of the annular flange. When the screw ring is tightened, the elastomeric material compresses but the groove structure maintains its ventilation function due to the material's elasticity. The flexible nature of the elastomeric material allows it to deform under compression while still maintaining the structural integrity of the ventilation groove, preventing complete closure even under high tightening torque.
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 design ensures reliable ventilation and prevents liquid leakage by maintaining the ventilation channel's functionality despite varying tightening forces, reducing production costs and enhancing the container's leak-proof performance.
Implementation Method 1
The annular flange is made of an elastomeric material with a modulus of elasticity of at least 0.2 kN/mm²
Implementation Method 2
By sucking on the mouthpiece while drinking, a negative pressure is generated in the drinking vessel, which has to be relieved
Data Source
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AI summary
Drinking vessel with a drinking vessel, a drinking cap and a screw ring, wherein - the drinking vessel has an interior, a circular vessel opening, an opening rim surrounding the vessel opening and an external thread next to the vessel opening, - the drinking cap has a base wall, an annular flange surrounding the base wall for attachment to the opening edge of the drinking vessel, a drinking element protruding outwards from the bottom wall and a blocking means for blocking and opening a passage from the interior to the outside of the mouthpiece, which can be opened for drinking and otherwise closed, - a ventilation channel in the underside of the annular flange or in the upper side of the opening edge is present, which extends from an inner channel opening that is radially further inwards and open towards the interior of the drinking vessel to an outer channel opening that is radially further outwards and open to the environment, between these two channel openings at least 0.7 5 times around the center of the vessel opening, has a cross-sectional area in the range from 0.02 to 0.08 mm2 and is made of a rigid material with a modulus of elasticity of at least 0.2 kN/mm2 and - the annular flange by means of the screw ring in liquid-tight system can be fixed at the edge of the opening.