Trigger Dispenser Vent Valve Segmentation for Rapid Air Entry
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Solution Overview
Problem
Simplified trigger dispensing devices often suffer from excessive rigidity, which hinders rapid air entry during the suction phase of liquids, leading to functional drawbacks.
Innovation Solution
The integration of a vent valve with a deformable bulb creates a pressure chamber, where a vent lip and auxiliary wall allow air entry during suction and prevent liquid leakage, while a snap connection simplifies assembly and reduces production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the vent valve is integrated with the deformable bulb to simplify structure, then device complexity and production costs are reduced, but the bulb becomes excessively rigid which prevents rapid air entry during suction
Solution Approach 1:
The vent valve is separated from the deformable bulb into an independent component. This segmentation allows the bulb to remain highly deformable for rapid air entry while the vent valve can be designed with optimal rigidity and flexibility characteristics independent of the bulb's material constraints.
Solution Approach 2:
A flexible membrane is introduced as an intermediary element between the vent valve and the bulb. This membrane allows rapid deformation to enable quick air entry while the vent valve itself maintains structural integrity. The membrane acts as a mediator that decouples the rigidity requirements of the vent valve from the deformability requirements of the suction mechanism.
2Ease of manufacture
If the vent valve is integrated with the deformable bulb, then assembly is simplified and production costs are reduced, but functionality deteriorates due to inability to rapidly allow air entry
Solution Approach 1:
The vent valve, flexible membrane, and bulb are combined into a single integrated assembly that functions as a unified component. This merging maintains the simplicity of assembly and production while allowing each sub-component to be optimized independently for its specific function, thereby preserving both ease of manufacture and functional reliability.
Solution Approach 2:
A flexible membrane is used to create a lightweight, rapidly deformable structure that enables quick air entry. This thin film approach allows the venting system to respond rapidly to pressure changes while maintaining structural integrity, thus improving functional performance without complicating the overall assembly.
3Strength
If the bulb is made rigid to support integrated vent valve, then structural strength is improved, but the rapid suction phase is hindered
Solution Approach 1:
The system transitions from a static rigid structure to a dynamic configuration where the flexible membrane can rapidly deform during suction while the vent valve maintains its structural strength. This dynamic approach allows the system to exhibit both strength and rapid responsiveness depending on the operational phase.
Solution Approach 2:
The flexible membrane serves as a dynamic structural element that can rapidly deform to enable high-speed suction while the integrated vent valve provides the necessary structural strength. This combination of flexible film and rigid components resolves the contradiction between strength and suction speed.
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 design maintains excellent functionality with rapid air entry during suction and prevents liquid leakage, achieving constructive simplicity and efficient production and assembly processes.
Implementation Method 1
a deformable bulb (70) which creates a pressure chamber (71) and allows rapid entry of air into the bottle during the suction phase of the liquid
Implementation Method 2
prevents the escape of liquid from the bottle to the external environment during the other operating phases
Data Source
AI summary
A head (10) of a trigger dispenser device includes a bulb (70) having an elastically deformable casing (72) that includes a vent lip (90), molded in one piece. With the casing (72), the vent lip (90) forms a venting valve.