Cosmetic Container Slit Valve Sealing
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Solution Overview
Problem
Existing cosmetic containers face issues with inconsistent discharge of cosmetics due to valve mechanisms that are not user-friendly, leading to variability in the amount of cosmetic dispensed and potential obstruction during use.
Innovation Solution
A cosmetic container design featuring a moving part with a discharge cylinder and slits, allowing for visual confirmation of flowability and secure, consistent dispensing by positioning the moving part to either seal or expose the slits, ensuring a controlled and stable discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a valve body is used to seal the cosmetic container, then the cosmetic can be sealed to maintain virginity, but the valve hole is not opened sufficiently and the amount of cosmetic discharged varies
Solution Approach 1:
The valve body is segmented into multiple radial slits instead of a single valve hole, allowing the cosmetic to flow through multiple paths simultaneously. This segmentation ensures sufficient opening while maintaining consistent discharge amount across different usage scenarios.
Solution Approach 2:
The valve body is designed to be elastically deformable, transitioning from a sealed state to an opened state with radial slits when pressed. This dynamic structure allows automatic adjustment of the opening degree based on applied force, ensuring reliable sealing when not in use and consistent discharge during use.
2Productivity
If the valve hole opening degree is increased to improve discharge, then the cosmetic flows out more, but the sealing reliability deteriorates
Solution Approach 1:
The valve body employs elastic deformation to dynamically adjust between a fully sealed state (when not pressed) and an opened state with radial slits (when pressed). This dynamic mechanism ensures that the opening degree automatically adapts to usage conditions, maintaining sealing reliability when closed and enabling sufficient cosmetic discharge when opened.
Solution Approach 2:
The physical state of the valve body changes from undeformed (sealed) to elastically deformed (opened), altering the geometry from a closed structure to one with radial slits. This parameter change allows the system to switch between sealing and discharge functions based on applied force.
3Ease of operation
If the valve mechanism is simplified for ease of use, then operability improves, but the cosmetic may not discharge securely and consistently
Solution Approach 1:
The valve body automatically opens and closes based on applied force without requiring manual intervention or complex control mechanisms. The elastic deformation self-regulates the opening degree, ensuring consistent cosmetic discharge through radial slits while maintaining simple, intuitive operation.
4Reliability
If a seal ball is used to close the connection hole, then the cosmetic can be sealed, but the seal ball may become an obstacle and prevent cosmetic flow
Solution Approach 1:
Instead of a single seal ball blocking a connection hole, the valve body is divided into multiple radial slits that open simultaneously. This segmentation eliminates the risk of a single obstacle blocking flow, ensuring reliable cosmetic discharge through multiple parallel paths.
Solution Approach 2:
The seal ball mechanism is completely removed and replaced with an elastic valve body structure that integrates sealing and discharge functions. This extraction eliminates the potential problem of the seal ball becoming an obstacle while maintaining effective sealing through the elastic deformation mechanism.
Data Source
AI summary
To make a cosmetic container convenient, a closing part 6b of a discharge cylinder 6 closes an insertion hole 2h of a middle cylinder part 2 and seals a cosmetic A when a moving part 3 is positioned at a first stopping position, the discharge cylinder 6 protrudes by a predetermined length from an end face of the insertion hole 2h and slits 6c of the discharge cylinder 6 are exposed when the moving part 3 is moved from the first stopping position to a second stopping position separating in an axial direction, so that a user can visually confirm that the cosmetic can flow out through the slits 6c, the discharge cylinder and a discharge cylinder opening part 6a, and the moving part 3 is left at the second stopping position, so that the cosmetic A can securely flow out without variation when in use.