Dispensing Valve Sealing Mechanism for Leak-Free Refilling
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Solution Overview
Problem
Existing dispensing bottles with filling valves lack reliable sealing and compatibility with various outlet tube configurations, leading to inefficient and leak-prone refilling processes, especially during aspiration-based filling.
Innovation Solution
A dispensing bottle equipped with a filling valve featuring a nozzle with an internal channel and a ring that translates between stable and constrained positions, along with an external seal and actuation zone, ensuring secure communication with the outlet tube and preventing leaks, while accommodating a wide range of outlet tube diameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a filling valve is added to enable refilling, then the bottle can be refilled multiple times, but the seal reliability between outlet tube and valve deteriorates
Solution Approach 1:
The outlet tube is nested within the actuation zone of the external seal, with the seal surrounding the tube to create a nested sealing structure. This ensures reliable sealing while maintaining compatibility with various tube configurations
Solution Approach 2:
The external seal acts as an intermediary element between the outlet tube and the valve body, providing a reliable sealing interface that accommodates different tube diameters and configurations while maintaining seal integrity
2Reliability
If the valve is designed for specific outlet tube configurations, then the seal reliability improves, but the adaptability to various outlet tube configurations deteriorates
Solution Approach 1:
The external seal is designed with an actuation zone that can universally accommodate different outlet tube configurations through pressing action. The seal's geometric features (chamfered edge, hole diameter smaller than opening) allow it to function reliably with various tube sizes and shapes
Solution Approach 2:
The seal design incorporates parameter variations including a hole diameter that is deliberately smaller than the opening external diameter, creating an actuation zone that adapts to different tube configurations while maintaining reliable sealing through the pressing mechanism
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 solution enhances the reliability and tightness of the filling process, allowing for efficient and leak-free refilling of the dispensing bottle, regardless of the source bottle's outlet tube configuration, and supports both aspiration and injection-based filling methods.
Implementation Method 1
said valve further comprising a seal external which is interposed between said external wall and said internal bearing
Implementation Method 2
said edge forming a chamfer having an external diameter which is less than its internal diameter
Implementation Method 3
a nozzle provided with an internal channel which extends between an upstream orifice opening onto an external wall of said nozzle and a downstream orifice
Data Source
Figure 1
Figure 2~4
AI summary
The bottle has a valve (16) that includes a jet (18) which is provided with internal channel that extends between upstream and downstream orifices (19a,19b). The valve comprises an external seal (32) that is located between external wall and internal length (26). The seal has a hole (24a) that is arranged opposite to upstream orifice and an actuation area is arranged in opening opposite to central length. The actuation area is arranged so as to allow filling by putting outlet tube in sealed abutment on area so as to move jet into communication position.