Portable Gas Safety Valve With Melt-Release Flow Blocking
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Solution Overview
Problem
Existing safety valves for portable gas containers fail to effectively block gas flow when overheating, leading to potential explosions due to incomplete sealing, assembly defects, and high manufacturing costs.
Innovation Solution
A flow-blocking safety valve with a bridge holder that melts at elevated temperatures, allowing a pin or ball to move and seal the gas flow channel, preventing gas discharge, featuring a simple structure for easy assembly and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the gas channel member protruding on the outer surface of the adhering incline melts, then the adhering incline also melts, but this causes an opening (crack) between the two, resulting in incomplete gas flow blocking
Solution Approach 1:
The invention separates the gas channel member from the adhering incline, making them independent components. The gas channel member is positioned such that when it melts due to overheating, it does not cause the adhering incline to melt, thereby preventing the formation of openings or cracks that would compromise sealing. This segmentation ensures reliable gas flow blocking without the manufacturing precision issues of integrated designs.
2Reliability
If the adhering incline in a truncated conical shape is used to close the opening/closing channel section, then gas flow can be blocked, but accurate settlement during assembly is required to prevent gas leakage
Solution Approach 1:
By separating the gas channel member from the adhering incline, the invention reduces assembly precision requirements. The gas channel member and adhering incline can be assembled independently, and the segmented structure allows for easier positioning and settlement during assembly, reducing the risk of gas leakage while maintaining effective gas flow blocking.
3Reliability
If the interlocking blocking section is made of material melting at predetermined temperature, then gas discharge can be blocked when temperature rises, but the structure becomes complicated and assembly becomes difficult
Solution Approach 1:
The invention divides the safety valve into separate functional components: the gas channel member, the adhering incline, and the blocking pin member. This segmentation simplifies the overall structure compared to integrated designs, while maintaining temperature-responsive gas blocking functionality. Each component has a specific function, making assembly easier and reducing structural complexity.
Solution Approach 2:
The invention extracts the gas channel member as a separate component from the adhering incline, allowing it to be positioned and sized independently. This extraction enables the gas channel member to be optimized for melting at predetermined temperatures without compromising the structural integrity or increasing the complexity of the overall device.
4Ease of manufacture
If multiple components are assembled in separate constitutions, then manufacturing flexibility is improved, but assembly time and manpower increase significantly
Solution Approach 1:
The segmented structure of the invention, with separate gas channel member and adhering incline, allows for flexible manufacturing of each component independently. The simplified assembly process, enabled by the specific positioning and interaction mechanisms between segmented parts, reduces the time and manpower required compared to assembling complex integrated structures.
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 safety valve effectively prevents gas container explosions by sealing the flow channel during overheating, ensuring safe operation with reduced assembly complexity and lower manufacturing costs.
Implementation Method 1
a bridge holder supporting a pin of the safety valve melts to close a flow channel through which the gas flows
Data Source
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AI summary
There is provided a flow-blocking safety valve to prevent an explosion of a portable gas container, wherein, when the portable gas container overheats during use and the temperature rises above a predetermined level, a bridge hold supporting a pin of the safety valve melts and thus a pin or ball securely supported in the bridge holder becomes free to move to close a flow channel through which the gas flows, thereby blocking the gas discharge and preventing an accident occurring when the gas container bursts by overheating.