Pressure-Responsive Dispenser Nozzle for Smooth Liquid Dosing
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Solution Overview
Problem
Existing dispensers for liquid contents struggle to discharge an appropriate amount smoothly while maintaining user convenience and reducing manufacturing costs.
Innovation Solution
A dispenser design featuring an outer cap with support columns, an inertial member, and an elastic member that adjusts internal pressure to control the nozzle's opening and closing, utilizing a siphon effect for smooth discharge and simplifying components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a dispenser is designed to discharge liquid contents by pressurizing the container, then the discharge amount can be controlled, but the device complexity increases due to additional components like inertial members and elastic members
Solution Approach 1:
The inertial member and elastic member are integrated into a unified pressurization mechanism within the dispenser. The inertial member moves in response to container pressurization while the elastic member provides restoring force, and both are combined in a single assembly that controls the nozzle opening/closing action, reducing overall system complexity despite achieving controlled discharge.
Solution Approach 2:
The dispenser uses a dynamic inertial member that moves automatically in response to changes in container internal pressure. This dynamic component opens and closes the nozzle based on pressure fluctuations without requiring external control mechanisms, achieving controlled discharge while minimizing device complexity.
2Ease of operation
If the dispenser uses an inertial member to open and close the nozzle, then smooth discharge can be achieved, but the manufacturing cost increases
Solution Approach 1:
The inertial member operates autonomously based on the natural pressure changes within the container during dispensing. It automatically opens and closes the nozzle in response to pressure fluctuations without requiring external actuators, control systems, or complex mechanical linkages, thereby achieving smooth discharge while keeping manufacturing costs low.
3Productivity
If the container is pressurized to discharge contents, then the discharge amount increases, but the reliability decreases due to potential leakage or uncontrolled flow
Solution Approach 1:
The elastic member provides a feedback mechanism that responds to pressure changes within the container. As pressure increases to drive discharge, the elastic member compresses and subsequently restores, automatically regulating the inertial member's position and controlling the nozzle opening/closing timing. This feedback loop ensures reliable controlled discharge without leakage or uncontrolled flow.
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 dispenser achieves smooth and controlled discharge of liquid contents while reducing manufacturing costs by simplifying components and utilizing a siphon effect for efficient liquid flow.
Implementation Method 1
an inertial member guided by the plurality of support columns, moving toward the nozzle when the internal pressure of the container increases, and opening and closing the nozzle
Implementation Method 2
an elastic member pushing the inertial member away from the nozzle
Implementation Method 3
the second flow path may allow the contents to flow into the nozzle by a siphon effect when the inertial member moves toward the nozzle when compressing the elastic member
Data Source
AI summary
A dispenser according to an embodiment of the present disclosure includes an outer cap fastened to an inlet of a container capable of increasing internal pressure by an external force and having a nozzle discharging contents contained in the container; a support portion having a plurality of support columns spaced apart from each other around the nozzle in the outer cap; an inertial member guided by the plurality of support columns, moving toward the nozzle when the internal pressure of the container increases, and opening and closing the nozzle; and an elastic member pushing the inertial member away from the nozzle, wherein a first inflow path is formed by a space between the plurality of support columns in a discharge direction of the nozzle, and wherein the first inflow path is configured to allow the contents to press the inertial member when the internal pressure of the container increases.