Rotary-Push Cosmetic Container Sealing Mechanism
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Solution Overview
Problem
Conventional cosmetic containers face issues with cosmetic quality degradation due to air exposure and contamination, inaccurate dispensing, and waste, as they often leak or allow foreign substances to enter, especially when carrying cream-type cosmetics.
Innovation Solution
A rotary-push type cosmetic container design featuring a lower and upper case with a thread-fastened rotary plate, a piston, and a nozzle plate with a decompression mechanism, allowing the internal container to move up for controlled dispensing while maintaining a sealed extraction hole to prevent leakage and air contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the outlet hole is always open to allow cosmetic dispensing, then the cosmetic can be easily extracted, but the cosmetic leaks and contacts air when not in use
Solution Approach 1:
The nozzle plate is designed to move dynamically between open and closed positions relative to the extraction hole. The spring mechanism enables the nozzle plate to automatically open when the rotary plate rotates (allowing cosmetic dispensing) and close when the rotary plate returns to initial position (preventing leakage and air contact), thus resolving the contradiction between ease of operation and reliability.
2Productivity
If the internal container is moved up by rotary plate rotation to dispense cosmetic, then cosmetic can be discharged, but the structure becomes complex and large in size
Solution Approach 1:
The invention merges multiple functions into the rotary plate: it serves as both the rotation actuator and the lifting mechanism for the internal container. The thread engagement between the rotary plate and internal container combines rotational motion with linear lifting motion, eliminating the need for separate lifting mechanisms and reducing overall structural complexity while maintaining efficient cosmetic dispensing.
Solution Approach 2:
The rotary plate performs multiple functions simultaneously: it rotates to drive the lifting mechanism, lifts the internal container to dispense cosmetic, and its rotation also controls the opening/closing of the extraction hole through the nozzle plate mechanism. This multi-functionality reduces the number of separate components needed, simplifying the overall structure.
3Ease of operation
If the extraction hole remains open for cosmetic extraction, then cosmetic can be accessed easily, but foreign substances and air enter the container
Solution Approach 1:
The nozzle plate dynamically adjusts its position to open the extraction hole only when needed for cosmetic extraction and close it when not in use. The spring mechanism ensures automatic closing action, creating a dynamic seal that prevents contamination and air contact while allowing easy cosmetic extraction when the hole is open.
4Productivity
If the piston assembly is moved up by rotary unit rotation to discharge cosmetic, then cosmetic can be ejected, but the cosmetic may flow down through gaps due to gravity
Solution Approach 1:
The invention extracts the cosmetic from the internal container through a controlled opening (extraction hole) rather than allowing it to flow freely through gaps. The nozzle plate with extraction hole provides a dedicated discharge path that prevents cosmetic from leaking through unintended gaps, eliminating waste while maintaining ejection functionality.
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
Enables precise and sanitary dispensing of cosmetics, preventing waste and quality degradation by ensuring the extraction hole is only open when needed, maintaining internal pressure control to prevent leakage and contamination.
Implementation Method 1
a nozzle plate (60) elastically supported by a spring (55) between the rotary plate (70) and the piston (50)
Implementation Method 2
a rotary plate (70) thread-fastened to a thread (31) formed around the outer side of the internal container (30)
Data Source
AI summary
The present invention provides a rotary-push type cosmetic container. The rotary-push type cosmetic container includes: a lower case; an upper case opening up and closing down with respect to the lower case; an internal container disposed in the lower case and filled with a cosmetic through the back; a rotary plate having an extraction hole at the center and moving up the internal container by rotating about a middle case in the lower case; a piston combined to the lower portion of the rotary plate to generate pressure for extracting the cosmetic in the internal container; and a nozzle plate elastically moved up and down by a spring between the piston and the rotary plate.