Hose Quick Coupling Buckle Device with Engaging Pin
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Solution Overview
Problem
Existing hose quick couplings have complex and costly safety mechanisms that complicate replacement and assembly, leading to high replacement costs and operational difficulties due to intricate designs and separate components like buckle plates and cam arms.
Innovation Solution
A hose quick coupling design featuring buckle devices with an engaging pin and locking piece, simplifying the structure by replacing the conventional buckle plate with a buckle handle, and allowing for secure buckling without replacing the entire coupling, using a pivotally connected buckle handle with an engaging pin and locking piece, and elastic members for easy operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a safety mechanism with buckle plate and cam arms is provided, then the buckling security is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines the buckle handle, engaging pin, and locking piece into a single integrated buckle device that pivots as one unit. This merging of previously separate components (buckle plate, cam arms, locking mechanism) into a unified pivoting assembly reduces structural complexity while maintaining the security function through the coordinated movement of integrated elements.
Solution Approach 2:
The pivoting buckle handle serves multiple functions simultaneously: it provides the buckling action through rotation, the engaging pin provides locking engagement, and the integrated design allows the same component to both secure and release the connection. This multi-functionality reduces the number of separate parts needed while maintaining reliability.
2Reliability
If a safety mechanism with separate buckle plate and cam arms is provided, then the buckling security is improved, but the ease of manufacture deteriorates
Solution Approach 1:
By merging the buckle handle, engaging pin, and locking piece into a single pivoting assembly, the patent reduces the number of separate manufacturing processes needed. Instead of manufacturing and assembling multiple separate components (buckle plate, cam arms, locking mechanism), the integrated design requires fewer manufacturing steps and assembly operations, thereby reducing manufacturing cost while maintaining security.
3Reliability
If a complex locking mechanism with cam arms is provided, then the buckling security is improved, but the ease of operation deteriorates
Solution Approach 1:
The patent employs a dynamic pivoting mechanism where the buckle handle rotates on a pivot axis to both engage and disengage the locking action. This dynamic design allows the user to operate the buckle by simply rotating the handle, which automatically coordinates the movement of the engaging pin and locking piece. This is simpler than static or multi-step locking mechanisms requiring separate actions for engagement and disengagement.
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
This design reduces manufacturing costs, simplifies assembly and operation, and provides a secure yet easy-to-use buckling mechanism without the need for replacing the entire hose coupling, enhancing user convenience and reducing replacement costs.
Implementation Method 1
an elastic member, such as a spring, for pushing the engaging pin to extend outward to engage with the buckle plate
Implementation Method 2
The buckle device comprises a buckle handle, an engaging pin and a locking piece, all of which are pivotally connected to each other in a pivot shaft
Data Source
AI summary
A hose quick coupling used to connect and buckle a nozzle includes a hose coupling main body and at least one buckle device. The buckle device includes a buckle handle pivotally connected to the hose coupling main body, an engaging pin movably disposed in the buckle handle, and a locking piece pivoted to the inner side of the buckle handle. When the engaging pin is biased by an elastic member, the upper end of the engaging pin extends out of the buckle handle and engages with the side wall of the hose coupling main body so that the buckle handle cannot be turned. Conversely, when the engaging pin is pulled to retract into the buckle handle, the engaging pin is disengaged and the buckle handle can be turned so that the nozzle can disengage from the hose coupling main body.