Rotary Valve Actuator for Liquid Cosmetics Case
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Solution Overview
Problem
Existing liquid cosmetics cases have complex structures, high manufacturing costs, and issues with airtightness and contamination due to the button type and rotary type designs, which lead to inconvenience and germ propagation.
Innovation Solution
A simplified liquid cosmetics case design featuring a valve nozzle that opens and closes through rotation, using a valve actuator unit to convert rotational movement into vertical linear movement, with a magnetic cosmetic puff unit for sealing fine discharge holes to prevent content volatilization and contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a button type structure is installed on the upper or side portion of the case body, then the liquid content can be discharged, but the case becomes complicated in structure and manufacturing cost increases
Solution Approach 1:
The invention extracts the button structure from the case body by providing a separate applicator that can be inserted into and removed from the case. This eliminates the need for a built-in button mechanism, simplifying the case structure while maintaining the liquid discharge function through the applicator's button pressing action on the valve nozzle.
Solution Approach 2:
The invention divides the liquid cosmetics case into separate functional components: the case body, the applicator with button, and the valve nozzle assembly. This segmentation allows each component to be optimized independently, reducing overall structural complexity while preserving the discharge function.
2Ease of operation
If a button is applied to a lower portion of the case body, then the liquid content can be discharged, but the total length of the case body increases causing deterioration in outer appearance and inconvenience in use
Solution Approach 1:
Instead of extending the case body lengthwise to accommodate a lower button position, the invention moves the button function to the applicator which operates in a different spatial dimension. The applicator is inserted vertically into the case opening, allowing button operation without increasing the case's overall length.
3Ease of operation
If a rotary type structure is used to discharge liquid content, then the liquid can be discharged by rotation, but the discharging portion is always opened causing content discharge regardless of user intention and airtightness limitations
Solution Approach 1:
The invention implements a dynamic valve nozzle that can move between open and closed positions. The valve nozzle is elastically biased to remain closed by default and only opens when the applicator button is pressed. This dynamic mechanism ensures airtightness when not in use while maintaining ease of operation when needed.
4Ease of operation
If a cosmetic pad is disposed on an upper portion of the applicator, then the pad can be seated in a circular tube shape groove, but the content remains on the inside of the circular tube-shaped rim causing dirtiness and germ propagation
Solution Approach 1:
The invention removes the circular tube-shaped rim structure that caused content accumulation. Instead, the cosmetic pad is directly seated on the applicator button surface, eliminating the rim where content could remain and cause contamination while maintaining the pad seating function.
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 reduces the number of parts, lowers manufacturing costs, enhances airtightness, and prevents contamination, allowing for convenient and efficient use with all liquid viscosities while maintaining cleanliness.
Implementation Method 1
a cosmetic puff unit which is detachably installed on an upper portion of the applicator unit by a magnetic property to maintain sealing of the fine discharge holes through the applicator unit
Data Source
AI summary
A liquid cosmetics case in which the number of parts is reduced and a liquid content is discharged by opening or closing a valve nozzle through rotation. The liquid cosmetics case includes a case body having an opened upper portion and filled with a liquid content therein, a solder unit coupled to the opened upper portion of the case body and having a discharge tube in which a discharge hole is defined in a central portion thereof, a valve unit inserted into the discharge tube to open or close the discharge hole according to elevation of a valve nozzle, a valve actuator unit rotatably coupled to an upper portion of the solder unit to convert the rotation movement into a vertical linear movement of the valve nozzle and open or close the discharge hole, and an applicator unit coupled to an upper end of the valve actuator unit.