Quick Connect Coupling for Gas Appliance Canisters
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Solution Overview
Problem
Existing torches with threaded connections require multiple turns to secure the fuel canister to the torch head, making the process time-consuming and inconvenient, and it is difficult to determine when the connection is fully tightened.
Innovation Solution
A quick connect coupling system using a first connector with screw threads and a groove on the canister and a second connector with a slip ring on the appliance, allowing axial movement to lock the canister without rotating it, facilitating secure attachment without the need for multiple turns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a threaded connection is used to secure the fuel canister to the torch head, then the connection is secure and reliable, but the attachment process becomes time-consuming and inconvenient requiring multiple turns
Solution Approach 1:
The connection system is segmented into two distinct functional components: a threaded connector for secure attachment and a quick-connect coupling mechanism for rapid connection. This segmentation allows each component to specialize in its optimal function while working together to resolve the contradiction between security and speed.
Solution Approach 2:
A quick-connect coupling acts as an intermediary mechanism between the threaded connector and the torch head. This intermediary enables rapid connection by providing a guided insertion path and automatic engagement features, eliminating the need for manual threading while maintaining the security provided by the underlying threaded structure.
2Reliability
If a threaded connection is used to secure the fuel canister to the torch head, then the connection can be tightened, but it is difficult to determine when the connection is fully tightened
Solution Approach 1:
The quick-connect coupling incorporates visual and tactile feedback mechanisms that provide immediate indication when the connection is fully engaged. Users can clearly perceive when the canister is properly connected, eliminating the uncertainty associated with threaded connections.
Solution Approach 2:
The coupling mechanism employs visual indicators such as color-coded components or visible alignment features that change appearance or position to signal proper connection. This makes it immediately obvious when the canister is fully tightened and secured.
3Ease of operation
If a quick connect coupling is used to enable rapid attachment, then the attachment process is simplified, but the connection mechanism becomes more complex
Solution Approach 1:
The quick-connect coupling integrates multiple functions into a single unified mechanism: guided alignment, secure engagement, and visual indication are combined in one component. This merging reduces the number of separate parts and simplifies the overall system despite the enhanced functionality.
Solution Approach 2:
The coupling mechanism is designed to perform multiple functions simultaneously: it provides mechanical connection, ensures proper alignment, maintains secure engagement, and offers visual feedback. This multi-functionality is achieved through a single integrated design rather than multiple separate components.
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 rapid and secure attachment of the fuel canister to the torch head, eliminating the need for multiple turns and providing a clear indication of a secure connection, thus improving convenience and efficiency.
Implementation Method 1
The slip ring is biased to engage the groove and retain the canister on the appliance
Data Source
AI summary
A coupling for attaching a canister to an appliance comprises a first connector on the canister comprising screw threads and a groove and a second connector on the appliance that comprises a slip ring. The slip ring retains the canister on the appliance. An appliance comprises a canister having screw threads. A coupling connects the canister to the appliance separate from the screw threads where the coupling locks the appliance to the canister without rotating the appliance relative to the canister. The coupling locks the appliance to the canister when the canister is moved axially relative to the appliance. A canister is provided that has a connector comprising a set of screw threads for attaching the canister to a first type of appliance, and a groove for attaching the canister to a second type of appliance. A method of connecting a canister to an appliance is also provided.