Removable Lid Seal Structure for Cleanable Liquid Container Closures
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Solution Overview
Problem
Existing lids for liquid containers, particularly beverage bottles, face issues with inadequate cleaning of seals leading to mold and deposit formation and unreliable sealing over time, resulting in potential leakage.
Innovation Solution
A lid design featuring a lid element with a sealing retaining element and an elastically deformable sealing element, where the sealing element is held by a projection and can be easily removed for thorough cleaning, ensuring a secure and reliable seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing element is securely held in the lid element by a projection, then the sealing reliability is improved, but the cleaning accessibility deteriorates
Solution Approach 1:
The sealing element is designed as a separate, removable component from the lid element. This segmentation allows the sealing element to be easily detached for cleaning while maintaining its secure positioning during use through the projection-retaining section engagement mechanism.
Solution Approach 2:
The sealing element incorporates elastic deformability, allowing it to dynamically change shape during removal and reinstallation. The elastic retaining section can deform to pass over the projection during cleaning maintenance, then return to its original shape to securely engage with the projection during sealing operation.
2Ease of operation
If the sealing element is made elastically deformable for easy removal, then the ease of operation is improved, but the sealing effectiveness may deteriorate
Solution Approach 1:
The sealing element's material properties are carefully selected to provide specific elastic characteristics. The elastic modulus and deformability parameters are optimized so the element can be removed by controlled deformation but maintains sufficient rigidity when engaged to provide effective sealing.
Solution Approach 2:
The sealing element transitions between two states: a flexible state during removal/installation where elastic deformation enables easy manipulation, and a rigid state during sealing where the engaged configuration provides stable, effective sealing contact.
3Reliability
If the projection extends radially outwards to hold the sealing element, then the sealing reliability is improved, but the device complexity increases
Solution Approach 1:
The projection serving the sealing retention function is merged with the sealing retaining element structure. This integration means the projection is not an additional separate component but rather a feature of the existing retaining element, thereby providing the needed retention function without increasing overall device complexity.
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 allows for easy cleaning of the sealing element, preventing mold and deposits while maintaining a reliable sealing effect, ensuring the lid remains functional over time.
Implementation Method 1
the sealing element can be removed from the cover element by means of elastic deformation of the sealing element
Data Source
Figure 1a~1c
Figure 2
Figure 3
AI summary
The invention relates to a lid (1) for closing a liquid container (2). The lid (1) comprises a lid element (20) which has a lid thread (24) on its inner side for a threaded connection with a container thread (2c) of a liquid container (2). A sealing retaining element (30) is provided, which is connected to the lid element (20). The sealing retaining element (30) has a projection (31) which extends outwards in a radial direction (R) from an outer circumference of the sealing retaining element (30). The projection (31) is arranged and designed such that an undercut (60) formed by the projection (31) is created between the projection (31) and the lid element (20) for holding a sealing element (40).Furthermore, a sealing element (40) is provided which is elastically deformable, at least in sections, and has a retaining section (48) that extends inwards in the radial direction (R). The sealing element (40) can be arranged in a sealing position in which it is located inside the cover element (20) and is held within the cover element (20) by means of the projection (31) of the sealing retaining element (30). The sealing element (40) can be removed from the cover element (20) by means of elastic deformation of the sealing element (40).