Multi-Coupling Handle Assembly for One-Handed Fluid Line Locking
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Solution Overview
Problem
Conventional multi-coupling systems for connecting multiple fluid lines in high-pressure systems, such as hydraulic systems, face challenges with size, weight, and operational complexity, particularly in compact equipment, where they require two-handed operation and are not compatible with loose couplers.
Innovation Solution
A multi-coupling system that uses a single cam mechanism for locking, incorporating a locking pin assembly with a torsion and compression spring, allowing one-handed operation and automatic resetting, and enabling connection with both integrated and loose couplers through a handle assembly and guide pins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional multi-coupling systems use multiple cam locking mechanisms to secure multiple fluid lines, then connection reliability is improved, but device size and weight increase
Solution Approach 1:
The patent combines multiple cam locking mechanisms into a single integrated cam structure that simultaneously secures multiple fluid lines. This single cam mechanism performs the function of what would traditionally require multiple separate cams, reducing overall device weight while maintaining connection reliability through unified locking action.
Solution Approach 2:
The single cam mechanism is designed to perform multiple locking functions simultaneously, securing several fluid lines with one component. This multi-functional approach allows the cam to replace multiple specialized locking mechanisms, achieving weight reduction without compromising the reliability of individual line connections.
2Reliability
If conventional multi-coupling systems use multiple cam locking mechanisms, then connection security is improved, but device complexity increases
Solution Approach 1:
Multiple separate cam locking mechanisms are merged into a single integrated cam structure with unified actuation. This consolidation reduces the number of independent components and simplifies the overall locking mechanism while maintaining connection security through the combined locking action on multiple fluid lines.
Solution Approach 2:
The single cam mechanism is designed to perform multiple locking functions simultaneously, reducing device complexity by eliminating the need for multiple specialized components. The universal cam structure handles all locking operations through one mechanism, making the system easier to manufacture, maintain, and operate.
3Reliability
If conventional multi-coupling systems require two-handed operation for locking, then connection security is improved, but ease of operation worsens
Solution Approach 1:
The operating functions previously requiring two hands are merged into a single-handed operation mechanism. The unified cam structure can be actuated by one hand while maintaining secure locking, eliminating the need for one hand to hold a lock feature while the other operates the handle.
Solution Approach 2:
The locking mechanism incorporates automatic features that reduce manual intervention requirements. The cam mechanism is designed to self-lock or self-secure during operation, allowing one-handed control while maintaining connection security without requiring the operator to simultaneously manage multiple manual tasks.
4Adaptability or versatility
If conventional multi-coupling systems are designed for compact equipment, then adaptability is improved, but device size must be reduced
Solution Approach 1:
Multiple functional components are merged into a compact integrated structure that fits within space-constrained environments. The single cam mechanism and unified locking system occupy less volume than multiple separate mechanisms, enabling adaptation to compact equipment while maintaining full functionality.
Solution Approach 2:
The multi-coupling system employs a nested arrangement where components are arranged concentrically or in space-efficient configurations. The single cam structure is positioned to engage multiple lines simultaneously, maximizing space utilization and reducing the overall volume required for the device.
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 system reduces size and weight, simplifies operation to one-handed use, prevents accidental disconnection, and allows connection with loose couplers, enhancing usability and efficiency in compact equipment.
Implementation Method 1
incorporating a locking pin assembly with a torsion and compression spring
Implementation Method 2
incorporating a locking pin assembly with a torsion and compression spring
Data Source
AI summary
A multi-coupling system includes first and second multi-coupling components that can be connected and disconnected. When connected, opposing fluid couplers on the components are connected. The second multi-coupling component has a handle assembly including a hook retainer, and the first coupling component has a roller, and the handle assembly is rotatable to connect and disconnect the components. As the handle assembly rotates for connection, the hook retainer interacts as a single cam with the roller to pull the components together. A locking pin assembly has a locking pin that is moveable between extended and retracted positions, and when extended locks in a housing of the second component to prevent rotation of the handle assembly. A user manipulates the locking pin assembly to retract the locking pin, which is automatically retained in the retracted position. The locking pin automatically resets when the handle assembly is rotated to disconnect the multi-coupling components.