Drinking bottle closure
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Solution Overview
Problem
Existing drinking bottle closures with pressure-latching units have a limited axial stroke due to the necessary angle of attack for rotating elements, which restricts the diameter and pouring efficiency, making it difficult to achieve a larger axial stroke without increasing the diameter excessively.
Innovation Solution
The design incorporates a long guide tongue that can freely rebound and a compression spring to determine the axial stroke, allowing for a larger movement while maintaining sealing, with a form-fit coupling between parts and a secondary seal for leakage protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the axial stroke is extended by increasing the diameter of the drinking bottle closure, then the axial stroke is increased, but the device takes up more space in luggage and the pouring behavior changes negatively
Solution Approach 1:
The guide tongue is designed as a resilient element that can dynamically deflect laterally when contacting the guide baffle, allowing the system to achieve greater axial stroke without increasing diameter by utilizing elastic deformation rather than rigid geometric extension
Solution Approach 2:
The invention changes the mechanical parameters of the pressure-latching unit by replacing the rotating element with a resilient guide tongue that undergoes lateral deflection, transforming the stroke mechanism from rotational to elastic deformation-based, thereby achieving longer stroke in the same space
2Length of moving object
If a rotating element with certain angle of attack is used in the pressure-latching unit, then the latching function is achieved, but the axial stroke is limited and cannot be extended
Solution Approach 1:
Instead of using a rotating element that requires a specific angle of attack, the invention inverts the approach by using a resilient guide tongue that deflects laterally upon contact, reversing the mechanical principle from rotational motion to elastic bending, thereby eliminating the angle of attack constraint
Solution Approach 2:
The guide tongue is implemented as a flexible, resilient element that can bend and deflect laterally when contacting the guide baffle, replacing the rigid rotating element and enabling greater axial stroke through elastic deformation
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 solution enables a larger axial stroke without increasing the diameter, improving the user's ability to visually recognize the opening position and enhancing liquid flow, while maintaining effective sealing and leakage protection.
Implementation Method 1
a compression spring (40) acting between the valve support element (50) and the upper part (31) in order to effect the closing of the valve unit (30) and/or to hold the open position of the valve unit (30)
Implementation Method 2
the guide tongue (34) with its hook projection (35) interact with a guide baffle (54), which is formed on an inner wall in the guide recess (53) in the valve support element (50)
Implementation Method 3
an upper sealing disk (33) resting against a sealing edge (13) at the pouring rim (12) and/or a lower sealing element (21) pressing against an inner wall in the housing (10)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Drinking bottle cap (100), comprising at least: - a housing (10) with a ring edge (14) which surrounds an inlet opening (1), and with a pouring rim (12) which surrounds a outlet opening (2) and on whose inner circumference an inwardly projecting, circumferential sealing rim (13) is formed; - a valve unit (30) with an actuating element and with a lower part (20) which covers the inlet opening (1) and has a sealing element (21) and - an upper valve disc (33; 33'), which is arranged inside the housing (10) and which maintains a distance from the sealing edge (13) in an open position of the valve unit (30) and which abuts the sealing edge (13) in a closed position; characterised in that - in that a valve carrier element (50) is provided which is to be detachably connected to the housing (10) and in which the valve unit (30) is guided axially displaceably against the force of at least one spring element (40), and - in that at least one axially extending, resiliently deflectable guide tongue (34; 34') with an end hook extension (35) is formed or fitted on the valve unit (30), which hook extension (35) is guided along a guide link (54, 55) on the valve carrier element (50) and/or can be fixed thereon in a form-fitting manner.