Safety Valve Assembly With Two-Step Motion Lockout
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Solution Overview
Problem
Existing safety valves and faucets are complex and do not effectively distinguish between different groups of endangered users, such as children, and fail to prevent unauthorized release of potentially hazardous liquids, as they often require only simple movements for activation.
Innovation Solution
A safety valve assembly that requires a predefined sequence of movements, specifically a combination of translational and rotational movements, to open and close the valve, incorporating mechanical means like springs to ensure the valve remains closed unless the correct sequence is followed, thereby preventing accidental or unauthorized liquid release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing safety valves use simple movement mechanisms for activation, then ease of operation is improved, but safety against unauthorized access deteriorates
Solution Approach 1:
The valve mechanism transitions from static simple movement to dynamic multi-stage movement. The valve body must first be moved axially to uncover the valve seat, then rotated to open the flow path. This dynamic sequence ensures that simple accidental touches cannot activate the valve, while still allowing competent users to operate it through the defined two-step process.
Solution Approach 2:
The activation process is segmented into two distinct movements: an axial translation movement to position the valve body, followed by a rotational movement to open the valve. This segmentation prevents unauthorized activation because each movement alone is insufficient to open the valve, whereas the complete sequence enables proper operation.
2Reliability
If existing safety valves use complex mechanisms, then safety against unauthorized access is improved, but device complexity worsens
Solution Approach 1:
The valve body serves multiple functions: it acts as both the sealing element and the actuating mechanism. By integrating the valve body's movement actions (axial translation and rotation) directly into the opening process, the design eliminates the need for separate complex actuating mechanisms, achieving safety through functional integration rather than added complexity.
Solution Approach 2:
The valve mechanism uses the user's own operational movements to provide safety. The required two-step operation (axial then rotational movement) makes the valve self-protecting, as the design itself enforces the safety logic without requiring external safety systems or additional controlling mechanisms.
3Reliability
If existing safety valves require independent movements, then safety against unauthorized access is improved, but ease of operation worsens
Solution Approach 1:
The valve transitions from static simple operation to dynamic sequential operation. The valve body must first be moved axially to uncover the valve seat, then rotated to open the flow path. This dynamic sequence ensures that simple accidental touches cannot activate the valve, while still allowing competent users to operate it through the defined two-step process.
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 effectively prevents unauthorized access to hazardous liquids by requiring specific movements to activate the valve, enhancing safety for children and other vulnerable users by ensuring the valve remains closed unless the correct sequence is performed, thus minimizing the risk of accidental exposure to hot water or other dangerous liquids.
Implementation Method 1
shutting means configured to keep said valve in the closed position when the knob is left free
Data Source
Figure 1
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AI summary
The invention provides a device for safely dispensing liquids, enabling to manage the state of a releasing valve according to the user, for example a vulnerable user such as a child.