Cosmetic Pump Nozzle Automatic Closing Mechanism
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Solution Overview
Problem
Cosmetic containers with discharge pumps face issues of air and foreign substances entering the nozzle, leading to content degradation and hardening, which reduces product reliability.
Innovation Solution
An opening/closing nozzle system with a cylindrical shoulder member, inner cap, discharge pump, and a mechanism using a circular rod, closing ball, and conical spring to control the discharge port, ensuring it opens only during use and closes when not in use, preventing air entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nozzle is always opened to allow content discharge, then the ease of operation is improved, but air and foreign substances enter the nozzle causing content degradation and hardening
Solution Approach 1:
The nozzle transitions from a static always-open state to a dynamic state that automatically opens during use and closes when not in use. The opening/closing member (54) with closing ball (542) responds to discharge pressure to open the discharge port (53), then automatically closes when pressure is released, preventing air entry while maintaining ease of use.
Solution Approach 2:
The nozzle system performs self-service by automatically opening and closing based on discharge pressure without requiring manual intervention. The opening/closing member (54) is driven by the discharge pressure itself to open the port, and the conical spring (545) automatically closes it when pressure is released, eliminating the need for separate control mechanisms.
2Productivity
If the nozzle remains open for continuous use, then the productivity is improved, but the content oxidizes and degrades due to air contact
Solution Approach 1:
The nozzle operates with periodic opening and closing actions rather than remaining continuously open. The discharge port (53) opens periodically during content discharge when pressure is applied, then closes periodically when pressure is released, minimizing air contact time while maintaining discharge efficiency during active use.
Solution Approach 2:
The system applies preliminary anti-action by closing the nozzle immediately after discharge to prevent air from entering and oxidizing the content. The automatic closing action occurs before air can significantly contaminate the discharged content, and the sealed state prevents further oxidation during storage periods between uses.
3Ease of operation
If the nozzle is kept open for easy access, then the ease of operation is improved, but the content hardens on the nozzle inlet side
Solution Approach 1:
The nozzle transitions from a static always-open state to a dynamic state that automatically opens during use and closes when not in use. The opening/closing member (54) with closing ball (542) responds to discharge pressure to open the discharge port (53), then automatically closes when pressure is released, preventing air entry while maintaining ease of use.
4Reliability
If an opening/closing mechanism is added to the nozzle, then the reliability is improved by preventing air entry, but the device complexity increases
Solution Approach 1:
The nozzle system performs self-service by automatically opening and closing based on discharge pressure without requiring manual intervention. The opening/closing member (54) is driven by the discharge pressure itself to open the port, and the conical spring (545) automatically closes it when pressure is released, eliminating the need for separate control mechanisms.
Solution Approach 2:
The conical spring (545) acts as an intermediary element that facilitates the opening/closing action. It stores energy during the closed state and releases it to assist the closing ball (542) in sealing the discharge port (53), simplifying the overall control mechanism while maintaining reliable operation.
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
Prevents air from entering the nozzle, thereby maintaining the cosmetic content's integrity and improving product reliability by preventing degradation and hardening.
Implementation Method 1
a conical spring (545) which is inserted into the outer side surface of the inclined disc (543) and extends when the discharge pressure of the cosmetic content is released to return the inclined disc (543) to its original state
Data Source
AI summary
An opening/closing nozzle of a discharge pump for a cosmetic container is configured such that it is advantageous in that inflow of air into a nozzle of the cosmetic container can be prevented such that not only degeneration of the content and hardening of the content inside the nozzle, which would otherwise occur if air flows into the nozzle, can be prevented, but the reliability of the product can also be improved.