Drinking lid for a drinking container, and drinking container having such a lid
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Solution Overview
Problem
Existing 360° drinking caps face challenges in assembly after cleaning, as alignment of components is laborious and not always precise, leading to suboptimal sealing and air flow issues, which can result in liquid leakage and pulsation during use.
Innovation Solution
The 360° drinking attachment features a sealing disc with stiffening ribs and a clamping flange that does not require alignment with the drinking rim, along with air inlet passages designed as labyrinth seals between the drinking rim and sealing disc, or between the external and internal threads, to ensure stable assembly and efficient air flow without liquid leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the clamping flange and sealing disc are designed to require precise alignment during assembly, then the sealing performance is improved, but the assembly process becomes laborious and time-consuming
Solution Approach 1:
The sealing system is segmented into a sealing disc with integrated sealing elements and a clamping flange, where the sealing disc can be independently positioned and secured without requiring precise alignment with the clamping flange. The sealing elements are distributed around the periphery, allowing the sealing disc to be clamped securely at any rotational position.
Solution Approach 2:
The sealing disc is designed with self-aligning features where the sealing elements automatically engage with the corresponding surfaces of the clamping flange and drinking rim upon insertion, eliminating the need for manual alignment. The elastic deformation of the sealing elements ensures automatic seating and sealing contact.
2Ease of operation
If the sealing disc is made entirely elastic to enable lifting by suction, then the drinking function is improved, but the structural stability and resistance to unintended displacement deteriorate
Solution Approach 1:
The sealing disc exhibits different mechanical properties in different regions: the peripheral sealing elements are highly elastic to enable suction-induced lifting and sealing contact, while the central and radial structures have increased stiffness to provide structural stability and resist unintended displacement during assembly and use.
Solution Approach 2:
The sealing disc is constructed as a composite structure combining elastic materials for the sealing elements with stiffer materials for the structural framework, allowing simultaneous achievement of flexibility for drinking function and rigidity for structural stability.
3Reliability
If air inlet passages are designed as labyrinth seals, then liquid leakage is prevented, but the complexity of the structure increases
Solution Approach 1:
The labyrinth seal acts as an intermediary structure between the air inlet passages and the liquid flow path. The series of alternating seal elements and gaps create a tortuous flow path that allows air to pass through while preventing liquid from penetrating, effectively decoupling the air and liquid flow requirements.
4Reliability
If the sealing elements are made soft and elastic, then the sealing contact and adaptability to surface variations are improved, but the manufacturing precision and dimensional control become more difficult
Solution Approach 1:
The sealing elements are designed with specific elastomeric material properties and geometric parameters (cross-section shape, thickness, mounting depth) that provide sufficient compliance to accommodate surface variations while maintaining dimensional control during manufacturing. The elastomeric material's inherent elasticity compensates for minor dimensional variations.
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
This design simplifies assembly, prevents liquid leakage, and ensures consistent air flow, enhancing the usability and durability of the drinking cap while allowing for different material selections for the fastening and drinking sections.
Implementation Method 1
which is dimensioned such that it is pulled over a stamp head projecting from a cylindrical stamp stem by elastic deformation
Implementation Method 2
which can be partially lifted from the drinking rim by a suction action of a user of the drinking attachment in order to release a passage to the intermediate space
Implementation Method 3
an air inlet passage can be formed between the drinking rim and the sealing disc... which are designed in such a way that air can always pass through, drinks such as water, tea
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a drinking lid (10) for drinking containers (12) comprising a funnel-like, circumferential drinking edge (14), which is open to the drinking container (12), having a fastening section (16) for fastening the drinking lid (10) to an edge region surrounding an opening of the drinking container (12), and a bowl-shaped, elastic gasket (20), which can be inserted into the drinking edge (14), for sealing the drinking edge (14). The gasket (20) circumferentially contacts the drinking edge (14) in the region of the free end of the drinking edge (14), when the drinking lid (10) is properly installed on the drinking container (12), forming an intermediate chamber (22) which is open to the drinking container (12), and is designed such that it can be partially raised from the drinking edge (14) by a suction action of a user of the drinking lid (10), in order to free a passage to the intermediate chamber (22). The gasket (20) has, in the region of the base thereof, an outwardly protruding circumferential flange (26), which is designed to contact the edge surrounding the opening of the drinking container (12), and the drinking edge (14) has a clamping flange (32), which projects toward the gasket, in order to clamp the flange (26) of the gasket (20) against the edge of the opening of the drinking container (12) as the drinking lid (10) is fastened to a drinking container (12), the flange (26) of the gasket (20) having a number of openings (28) to the intermediate chamber (22), with the clamping flange (32) ending before the openings (28) provided in the flange (26) of the gasket (20).