Trigger Dispenser Head with Flexible Membrane Valve
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing manual trigger dispensers suffer from poor repeatability in dispensing due to structural complexities and inefficiencies in valve function integration.
Innovation Solution
A manual trigger dispenser head with a simplified structure integrating valve functions, featuring a flexible membrane and check valve mechanism, which ensures precise and repetitive dispensing through a combination of a pressure chamber, piston, and elastic return means, while maintaining structural simplicity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple valve functions are integrated in a single component, then device complexity is reduced and manufacturing is simplified, but dispensing repeatability deteriorates
Solution Approach 1:
The valve system is divided into separate functional components: a check valve assembly with a first valve element and a dispensing valve assembly with a second valve element. This segmentation allows each valve to be optimized for its specific function while maintaining overall system simplicity, resolving the contradiction between structural simplicity and dispensing repeatability.
Solution Approach 2:
A flexible membrane acts as an intermediary element between the pressure chamber and the dispensing valve. The membrane transmits pressure changes while providing a sealing function, enabling reliable dispensing repetition without requiring complex integrated valve structures.
2Measurement precision
If a flexible membrane is used for pressure transmission, then dispensing precision is improved, but structural complexity increases
Solution Approach 1:
A flexible membrane is employed to transmit pressure changes from the pressure chamber to the dispensing valve while maintaining a simple overall structure. The membrane's flexibility allows it to deform under pressure, providing precise control over dispensing timing without requiring complex mechanical linkages or rigid pressure transmission mechanisms.
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 achieves high repeatability and reliability in dispensing, with controlled deformation of the membrane under pressure, ensuring consistent liquid delivery and easy assembly, and does not compromise aesthetics or functionality.
Implementation Method 1
a piston (26), sealingly slidable in the pressure chamber (24) along a pressure axis (Y), between an initial position in which the volume of the pressure chamber (24) is maximum, and a limit dispensing position, in which the volume of the pressure chamber (24) is minimum, passing by intermediate dispensing positions
Implementation Method 2
comprising check valve means suitable for preventing the return of liquid from the pressure chamber (24) towards the container
Implementation Method 3
valve dispenser means suitable for preventing the dispensing of liquid from the pressure chamber towards the dispenser duct up to reaching a predetermined threshold pressure in the pressure chamber
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
A trigger dispenser head (20) for a container (C) comprises a pressure chamber (24) and a piston (26), a mouth (90), a dispenser duct (30), valve dispenser means, a frame (22), connection means for mechanically connecting the valve dispenser means to the frame (22). The frame (22) comprises an annular connection wall (100) and the valve dispenser means comprise a main body (200).