Twisted Plastic Spring Pump Container for High-Viscosity Liquids
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Solution Overview
Problem
Conventional pump containers with steel springs face issues such as low pumping force, high viscosity liquid handling difficulties, corrosion of the spring, increased manufacturing costs, and environmental concerns due to non-recyclable materials, particularly when used in shampoo dispensers.
Innovation Solution
A pump container design featuring a cylindrical spring made of eco-friendly plastic material with twisted first and second spring members and connection spring members, which are extended from the top ring plate, allowing for easy suction and improved pumping force without the need for a steel spring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If a steel spring is used in the pump container, then the pumping force is improved, but the spring corrodes the liquid and increases manufacturing cost
Solution Approach 1:
The steel spring is completely removed from the pump container structure. The invention replaces the steel spring with a plastic elastic member that has elastic properties, thereby eliminating the source of liquid contamination while maintaining the necessary elastic function for pump operation.
Solution Approach 2:
The material property of the elastic member is changed from metal (steel) to plastic. This parameter change maintains the elastic functionality required for pumping while eliminating corrosion and liquid quality deterioration, and reducing manufacturing cost.
2Stability of the object's composition
If a steel spring is used in the pump container, then the elastic function is provided, but the manufacturing cost is raised
Solution Approach 1:
The material is changed from steel to plastic, which reduces manufacturing cost while maintaining the elastic function through the elastic properties of the plastic material.
Solution Approach 2:
The elastic member is integrated with the pump body structure, forming a unified plastic component that provides both structural support and elastic function, thereby simplifying manufacturing and reducing costs.
3Productivity
If the pump container is pressed to discharge liquid, then the liquid is discharged, but the pumping force is low for high viscosity liquids
Solution Approach 1:
The elastic member has a curved or spiral structure that provides mechanical advantage and distributes force more effectively, increasing the pumping force available for discharging high viscosity liquids.
Solution Approach 2:
The elastic member extends in multiple dimensions (spiral or twisted structure) rather than a simple linear spring, providing greater mechanical leverage and pumping force for viscous liquid discharge.
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 design enhances the pumping force and ease of liquid suction while providing an eco-friendly solution by using recyclable plastic components, reducing manufacturing costs and minimizing liquid quality deterioration.
Implementation Method 1
a cylindrical spring located inside the cylindrical housing... having first and second spring members twistedly extended from the undersurface of a top ring plate
Data Source
AI summary
Provided is a pump container including a container body, a pump body having a cylindrical spring, a shoulder member, and a discharge nozzle. The cylindrical spring is made of a plastic material and includes: a top ring plate having a hole formed at the center thereof; a first spring member erectly extended downward from one side undersurface of the top ring plate, while rotating in a clockwise direction; a second spring member erectly extended downward from the other side undersurface of the top ring plate which is a position symmetrical to one side undersurface thereof, while rotating in the same direction as the first spring member; and a pair of connection spring members erectly extended downward from two center surfaces between one side undersurface and the other side undersurface of the top ring plate, while rotating in the opposite direction to the first spring member and the second spring member.