Co-moulded Trigger Dispenser Valve Baffle
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Solution Overview
Problem
Existing triggered dispensing devices face issues with pre-compression valves opening excessively under liquid pressure, leading to inefficient liquid dispensing and high production costs due to complex designs and lengthy assembly times.
Innovation Solution
A triggered dispensing device with a delivery valve featuring a deformable baffle and support wall made from different polymers, co-moulded for simplicity and flexibility, which opens only when liquid pressure exceeds a threshold, ensuring optimal operation and economical production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pre-compression valve is added to improve liquid dispensing performance, then the liquid spray quality improves, but the device complexity increases
Solution Approach 1:
The delivery valve body and baffle are co-moulded as a single integrated component, merging two parts into one to simplify assembly while maintaining the pre-compression function. The valve body includes an integrated support wall that provides structural support without requiring separate components.
Solution Approach 2:
The delivery valve body serves multiple functions: it acts as a pre-compression valve to improve spray quality, provides structural support through the support wall, and serves as a mounting component for the baffle. This multi-functionality reduces the need for additional separate components.
2Manufacturing precision
If a complex pre-compression valve design is used to improve valve control precision, then the valve opening control improves, but the manufacturing cost and assembly time increase
Solution Approach 1:
The baffle's flexibility parameter is optimized to provide precise control over valve opening. By adjusting the flexibility of the baffle, the valve opens only when liquid pressure exceeds a specific threshold, ensuring precise control without complex mechanical adjustments or multiple components.
Solution Approach 2:
The delivery valve uses composite construction with a valve body made from a rigid polymer and a baffle made from a flexible polymer. This combination of materials allows the valve to achieve precise opening control through the flexible baffle's response to pressure, while the rigid valve body provides structural stability, all in a simple co-moulded design that reduces manufacturing 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 device achieves efficient liquid dispensing with controlled aperture and immediate return to initial shape, simplifying assembly and production while maintaining mechanical resistance and reliability, ensuring effective pre-compression and reliable operation.
Implementation Method 1
which opens only when liquid pressure exceeds a threshold
Implementation Method 2
A triggered dispensing device with a delivery valve featuring a deformable baffle
Implementation Method 3
immediate return to initial shape
Data Source
Figure 1~2
Figure 3a~5
Figure 6~7
AI summary
The present invention relates to a triggered dispensing device (1) for liquids comprising a delivery valve (20, 22, 24, 76), comprising a valve body (26) and a baffle (28) deformable to regulate the fluid flow between the pumping chamber (2) and the dispensing pipe (14), wherein a support wall (30) of the valve body (26) is coupled to the baffle (28) so as to follow it during its deformation. The invention further relates to a dispenser wherein the baffle (28) of a delivery valve (20, 22, 24,76) is co- moulded to a support wall (30) of the valve body (26).