Aerosol Head Cap Elastic Locking for Residual Gas Discharge
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Solution Overview
Problem
Aerosol type atomizers face issues with residual gas remaining in containers after use, posing explosion risks during disposal, and existing solutions either complicate the process with additional components or risk false operation during normal use.
Innovation Solution
A head cap design with elastically deformable side faces that locks the movable member in the spray position upon a specific user operation, allowing safe and easy discharge of residual gas without accidental spraying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a needle or drilling tool is provided separately to drill the container for discharging residual gas, then the residual gas can be discharged, but the number of parts increases and the operation becomes troublesome and hazardous
Solution Approach 1:
The patent combines the residual gas discharge function with the existing movable member for spray operation. The movable member serves dual purposes: spraying contents during normal use and discharging residual gas when the container is empty, eliminating the need for separate needles or drilling tools.
Solution Approach 2:
The movable member is designed to perform multiple functions: it acts as a spray mechanism during normal operation and transforms into a discharge mechanism for residual gas when the container is depleted, maximizing the utility of existing components.
2Reliability
If a needle or drilling tool is provided separately to drill the container for discharging residual gas, then the residual gas can be discharged, but the operation becomes hazardous due to residual gas flying about
Solution Approach 1:
The movable member acts as an intermediary mechanism that safely channels and directs the residual gas discharge through the fluid channel, preventing uncontrolled gas release and reducing hazards associated with direct piercing of the container.
3Reliability
If the movable member is largely moved downwards to fix it at the lower position for discharging residual gas, then the residual gas can be discharged, but false operation may cause the movable member to be fixed automatically during normal spray
Solution Approach 1:
The cap body is designed with a specific shape that preliminarily guides the user's fingers to press the correct area. This preliminary design prevents accidental activation by ensuring that only intentional pressing of the designated area triggers the discharge mechanism.
Solution Approach 2:
The mechanism provides tactile feedback through the push button and movable member positioning, allowing users to confirm the atomizer's state (normal operation vs. empty) and preventing unintended activation of the discharge function.
4Reliability
If the movable member is fixed at the lower position by pushing it intensely, then the residual gas can be fully discharged, but the operation becomes troublesome
Solution Approach 1:
The mechanism is designed to be activated by the user's natural grasping motion when holding the cap body, eliminating the need for separate操作步骤. The shape of the cap body guides the user's fingers to automatically engage the discharge mechanism.
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 simple and safe discharge of residual gas without increasing the number of components, preventing false spraying during normal use by engaging the movable member with the cap body's side faces, thus ensuring safe operation and reducing the risk of explosion.
Implementation Method 1
the cap body has a side face elastically deformable so that when the push button of the movable member for spray operation is pushed down to take the spray position, pressing the side face of the cap body inwards locks the movable member for spray operation with the side face to hold the movable member for spray operation at the spray position
Data Source
AI summary
A head cap for an aerosol type atomizer is proposed in which a residual gas that remains in the container after the use of the aerosol type atomizer is ended are discharged easily and safely, and which is so structured that the aerosol type atomizer cannot be falsely operated while it is being used. It comprises a cap body mounted over a top of a container accommodating its contents, and a movable member for spray operation disposed inside of the cap body and having a fluid channel extending from a stem fitting part for fitting with a stem and leading to a spray port, the movable member for spray operation having a push button such that pushing down the push button to take a spray position sprays contents of the container from the spray port via the fluid channel, wherein the cap body has a side face elastically deformable so that when the push button of the movable member for spray operation is pushed down to take the spray position, pressing the side face of the cap body inwards locks the movable member for spray operation with the side face to hold the movable member for spray operation at the spray position.