Pouch-Based Return Valve for Leak-Tight Fluid Dispensing
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Solution Overview
Problem
Existing fluid dispensing devices, such as those with return means like resilient tongues, do not achieve optimal leak-tightness, leading to potential leaks and inefficiencies in dispensing soap or cosmetics.
Innovation Solution
A fluid dispensing device with a return means comprising a pouch that forms a cavity within the dispensing pipe, which is deformed by compression to exert a force on the dispensing valve, ensuring a more homogeneous and stable return force, enhancing leak-tightness by pressing against inner walls of the pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pouch forming a cavity is used as a return means, then a more homogeneous return force is provided, but the device complexity increases
Solution Approach 1:
The pouch is constructed from a single flexible material that inherently forms a cavity when compressed. This eliminates the need for separate rigid housing structures or complex mechanical assemblies, achieving a homogeneous return force distribution while keeping the overall structure simple and integrated.
Solution Approach 2:
The pouch acts as an intermediary element between the compression force and the valve, translating external compression into a distributed return force on the valve surface. This mediator approach simplifies the force transmission mechanism compared to direct rigid linkages or multiple spring elements.
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 significantly improves leak-tightness by providing a more uniform return force and stability during assembly, preventing leaks and ensuring precise control over fluid dispensing.
Implementation Method 1
the pouch being deformed by compression when the dispensing valve is in the open state
Implementation Method 2
a return means arranged in order to exert a force on the dispensing valve, this force bringing the dispensing valve back from its open state to its closed state
Data Source
AI summary
The invention relates to a device for dispensing a fluid including: a tank arranged so as to contain the fluid; a dispensing pipe arranged so as to guide the fluid in a dispensing direction; a dispensing opening connecting the tank to the dispensing pipe; a dispensing valve which, in an open state, allows fluid to pass from the inside of the tank to the dispensing pipe via the dispensing opening and, in a closed state, does not allow fluid to pass from the inside of the tank to the dispensing pipe; and a return means arranged so as to exert a force on the dispensing valve. Said force moves the dispensing valve from the open state thereof to the closed state thereof. The return means includes a pouch forming a cavity. Said pouch is located in the dispensing pipe. The shape of the pouch is changed via compression when the dispensing valve is in the open state.