Plastic Cylindrical Spring Pump Container for Stronger Liquid Suction

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Solution Overview

Problem

Conventional pump containers with steel springs face issues such as high viscosity liquids being pumped poorly, high manufacturing costs, and environmental concerns due to corrosion and non-recyclable materials, along with inconvenient operation and low pumping force.

Innovation Solution

A pump container with a cylindrical spring made of eco-friendly plastic material, featuring first and second spring members twistedly extended from a top ring plate and connection spring members, which reduces internal volume and enhances suction and pumping force, eliminating the need for steel springs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If a steel spring is used in the pump container, then the pumping force is sufficient, but the manufacturing cost increases and environmental friendliness deteriorates

Engineering Contradiction:

Improvepumping forceVSAvoidmanufacturing cost

Core Design Contradiction:

ForceVSEase of manufacture

Solution Approach 1:

The patent replaces the steel spring (metallic mechanical component) with a cylindrical spring made of plastic material. This substitution eliminates the need for metal parts while maintaining the elastic function required for pumping operation, thereby reducing manufacturing cost and improving environmental compatibility.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent uses a composite structure where the cylindrical spring is formed by twisting multiple plastic spring members (first and second spring members) together with connection spring members. This composite plastic structure achieves the required mechanical strength and elasticity to provide sufficient pumping force without using steel.

Inventive Principle:

Principle #40Composite materials

2Force

If a steel spring is used in the pump container, then the pumping force is sufficient, but the environmental friendliness deteriorates due to corrosion and non-recyclable materials

Engineering Contradiction:

Improvepumping forceVSAvoidcorrosion and non-recyclability

Core Design Contradiction:

ForceVSObject-affected harmful factors

Solution Approach 1:

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent makes all components of the pump container, including the cylindrical spring, pump body, and housing, from the same plastic material. This homogeneity ensures that the entire product can be recycled together as a single material type, eliminating the environmental problem of mixed materials and non-recyclable steel components.

Inventive Principle:

Principle #33Homogeneity

3Productivity

If the internal volume of the cylindrical housing is reduced, then the pumping efficiency is improved, but the space for spring installation is reduced

Engineering Contradiction:

Improvepumping efficiencyVSAvoidspace for spring installation

Core Design Contradiction:

ProductivityVSVolume of stationary object

Solution Approach 1:

The patent transforms the traditional linear/coiled spring structure into a cylindrical spring formed by twisting spring members around a central axis. This dimensional transformation allows the spring to occupy less radial space while maintaining its length, thereby fitting into the reduced internal volume of the housing without compromising pumping efficiency.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The cylindrical spring is segmented into multiple twisted spring members (first and second spring members) connected by connection spring members. This segmentation allows the spring to be compacted into a smaller volume while maintaining the necessary elasticity and pumping force, solving the space constraint in the reduced housing volume.

Inventive Principle:

Principle #1Segmentation

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 provides easy liquid suction, improved pumping force, and an eco-friendly product with reduced manufacturing costs and environmental impact, while preventing liquid quality deterioration.

Implementation Method 1

the pump is moved upward back by means of an elastic force of a spring disposed between the container and the pump

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP3854486B1Pump container

Publication Date: 2022.03.30 KANG MIN GU

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AI summary

The present invention relates to a pump container including a container body, a pump body having a cylindrical spring, a shoulder member, and a discharge nozzle, wherein 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 (in a counterclockwise direction) to the first spring member and the second spring member.