Pump-Type Airtight Liquid Container Vacuum Discharge

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Solution Overview

Problem

Existing pump-type liquid containers face challenges in completely discharging remaining content and maintaining airtightness, especially after repeated use, due to complex structures and leakage issues.

Innovation Solution

A pump-type airtight liquid container design featuring a cylindrical body, a connection cover with a communication port, an elastic pump, a discharge button, and a sealing protrusion ring, which uses vacuum pressure to effectively discharge liquid content while maintaining airtightness through a simplified structure and sealing mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a complex structure is used in traditional pump-type liquid containers, then the discharge function is achieved, but complete discharge of remaining content becomes difficult and airtightness deteriorates after repeated use

Engineering Contradiction:
ImproveairtightnessVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The container is divided into distinct functional modules: a discharge unit with pump element, a sealing unit with valve mechanism, and a storage chamber. This segmentation allows each component to perform its specific function optimally while maintaining overall simplicity, resolving the contradiction between reliability and device complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The valve element is extracted as a separate, movable component that can be independently controlled. This allows the valve to be opened only when necessary for discharge and closed otherwise, maintaining airtightness while enabling complete content discharge, thus improving reliability without adding complex structure

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If traditional pump structures are used, then liquid discharge is enabled, but leakage occurs through gaps between internal elements

Engineering Contradiction:
Improveleakage preventionVSAvoidsealing structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

A flexible sealing ring made of elastic material is used around the pump element and valve mechanism. This flexible sealing structure adapts to movement and deformation during operation, maintaining contact and preventing leakage through gaps without requiring complex rigid sealing mechanisms

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing ring is pre-installed in positions where gaps are most likely to occur between internal elements. By anticipating potential leakage paths and providing sealing in advance, the design prevents leakage before it occurs, improving reliability without adding complex reactive sealing structures

Inventive Principle:
Principle #9Preliminary anti-action

3Duration of action of moving object

If repeated use of traditional containers occurs, then discharge function continues, but airtightness is difficult to maintain

Engineering Contradiction:
Improveservice lifeVSAvoidairtightness maintenance
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

The valve element is designed to be movable rather than fixed, allowing it to dynamically adjust its position between open and closed states. This dynamic capability ensures the valve can fully close after each discharge cycle, maintaining airtightness over extended service life without degrading performance

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pump element and valve mechanism are designed for easy disassembly and reassembly. After prolonged use, components can be recovered, cleaned, and reinstalled to restore optimal sealing contact, extending the service life while maintaining airtightness through periodic maintenance rather than replacing the entire container

Inventive Principle:
Principle #34Discarding and recovering

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 allows for complete and effective discharge of liquid or gel content while preventing leakage, ensuring high airtightness and simplifying the structure to address the issues of incomplete discharge and leakage in existing containers.

Implementation Method 1

the discharge button when lowered generates the vacuum pressure in the movement passage to deform a shape of the discharge tube of the elastic pump closely adhering to the sealing protrusion ring

Methodology Applied
Scientific EffectVacuum pressure: Vacuum

Implementation Method 2

an elastic pump including a flexible material, having a long shape, and arranged in the arrangement space of the connection cover to move the content accommodated in the accommodation space

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 3

an opening and closing member having a shape corresponding to an inner shape of the communication port and opening or closing the communication port, wherein the opening and closing member is raised when the opening and closing member is connected to the insertion ring

Methodology Applied
Scientific EffectVacuum pressure: Vacuum

Data Source

PatentUS20190381528A1Pump type liquid airtight container
Publication Date: 2019.12.19 DONGGI P&I CO LTD
  • US20190381528A1 patent drawing
  • US20190381528A1 patent drawing
  • US20190381528A1 patent drawing

AI summary

Provided is a pump-type airtight liquid container, and more particularly, to a pump-type airtight liquid container having an improved, simplified structure that provides higher airtightness and effectively allows total discharge of liquid content therefrom.