Inverted Compression Foam Generator for One-Handed Direct Discharge
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Solution Overview
Problem
Conventional foam generators for inverted compression receptacles require complex structures for air compression and liquid mixing, leading to increased assembly costs and user inconvenience, as they necessitate shaking the receptacle to produce foam and are difficult to use with one hand.
Innovation Solution
A foam generator for inverted compression receptacles that integrates a cap with a movement guide wall, a content discharge guide, a valve housing, an air check valve unit, and a filtration member, allowing direct compression to mix liquid contents with air and discharge foam through a simplified mechanism, enabling one-handed operation and stable product use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional foaming pump assembly is used to mix liquid contents with air and eject foam, then foam can be generated, but the structure becomes complicated and assembly productivity is lowered
Solution Approach 1:
The patent merges the air compression function and liquid mixing function into a single integrated chamber (air-liquid mixing chamber). The air valve device combines the air piston, liquid piston, and filtration net into one unified structure, eliminating the need for separate air compression and liquid mixing mechanisms. This integration directly reduces structural complexity while maintaining foam generation capability.
2Reliability
If a conventional foaming pump assembly with air cylinder and liquid cylinder is used, then foam can be generated, but assembly productivity is lowered and costs are increased
Solution Approach 1:
The air cylinder and liquid cylinder are merged into a single air-liquid mixing chamber with a unified piston structure. The air piston and liquid piston are integrated into one component that moves simultaneously, reducing the number of parts that need to be assembled. This integration significantly improves assembly productivity and reduces manufacturing costs while maintaining reliable foam generation.
3Reliability
If the nozzle is repeatedly pushed to generate foam, then liquid contents can be mixed with air, but it is inconvenient for users to receive foam with one hand while pushing the nozzle with another hand
Solution Approach 1:
The inverted compression receptacle is designed to be self-service by utilizing the user's hand compression action to directly drive the foam generation process. When the user compresses the flexible receptacle with one hand, the internal pressure automatically activates the air valve device to mix and eject foam, eliminating the need for a separate pushing motion with another hand. This self-service mechanism greatly improves user convenience.
4Reliability
If the receptacle is inclined, then the liquid filling the receptacle cannot be ejected in the form of foam, but maintaining a fixed upright position limits adaptability
Solution Approach 1:
The air valve device incorporates dynamic adaptive mechanisms including a flexible diaphragm that responds to pressure changes regardless of receptacle orientation, and a gravity-compensating piston system that maintains proper liquid-air mixing in any position. The filtration net is designed to function effectively in inclined positions, allowing the device to adapt to various user positions and orientations while maintaining reliable foam ejection capability.
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 simplifies the foam discharge mechanism, allowing direct and convenient one-handed operation of the foam generator, improving user experience and preventing liquid leakage during product distribution by utilizing the pressure generated in the compression receptacle.
Implementation Method 1
an inverted compression receptacle having liquid contents stored therein, the inverted compression receptacle being configured to be restored due to elastic force
Implementation Method 2
a content check valve, for selectively opening and closing the content suction port depending on whether the inverted compression receptacle is compressed, being received and disposed in the cylindrical coupling part
Implementation Method 3
liquid contents, discharged out of the inverted compression receptacle... are mixed with air in an air-liquid mixing chamber
Implementation Method 4
the liquid contents are mixed with air in the air and liquid mixing chamber, and the mixture is directly discharged in the form of foam
Implementation Method 5
a filtration member... configured to guide the discharge of foam formed as the result of the liquid contents being mixed with air... while homogenizing the foam
Data Source
AI summary
A foam generator is configured such that liquid contents pumped by an internal pressure as a result of directly compressing an inverted compression receptacle, having the liquid contents stored therein, are mixed with air in a gas-liquid mixing chamber and, at the same time, directly discharged in the form of foam. That is, direct compression of the inverted compression receptacle allows the liquid contents to be instantly discharged in the form of foam, thereby further improving product responsiveness.