Hydraulic Quick Coupler Decompression Tool for Flat-Face Pressure Release
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Solution Overview
Problem
Existing hydraulic quick couplers, particularly ISO 16028 conforming couplers, are difficult to depress manually due to their flat face and small area, making it challenging to release pressure before connecting or disconnecting hydraulic lines.
Innovation Solution
A tool comprising an upper brace, lower brace, cutout, and plunger release mechanism is designed to engage with the coupler, allowing for controlled pressure release via a threaded plunger and clamps to secure the tool around the coupler, with a release socket matching the coupler's release ring to depress it effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a manual plunger is used to depress the release ring on a flat-faced quick coupler, then the coupler can be operated, but the small area and flat face make it very difficult to release pressure
Solution Approach 1:
The tool transitions from a one-dimensional manual plunger to a three-dimensional mechanical advantage system using a fulcrum (leeche bar), leverage arms, and hydraulic ram. This multi-dimensional approach concentrates force from multiple directions onto the release ring, making depression feasible despite the small area.
Solution Approach 2:
The tool introduces intermediary components including a fulcrum point, leverage arms, and hydraulic ram as mediators between the operator's input force and the release ring. These intermediaries amplify and transmit force effectively to the small release area that would otherwise be impossible to depress manually.
2Productivity
If the hydraulic circuit remains under pressure during connection, then system operation continues, but it becomes very difficult to attach hydraulic lines
Solution Approach 1:
The tool enables preliminary action by allowing the release ring to be depressed and the coupler to be opened while the hydraulic circuit is still under pressure. This preliminary opening action permits safe line connection without requiring complete pressure release first, thereby maintaining productivity while improving ease of operation.
3Ease of operation
If a tool with mechanical advantage components is used, then pressure release becomes feasible, but the device complexity increases
Solution Approach 1:
The tool achieves multi-functionality by integrating multiple functions into a single device: the fulcrum provides leverage, the hydraulic ram provides controlled force, and the overall structure serves as both a depressor and a holder. This universality reduces the need for multiple separate tools while maintaining ease of operation.
Solution Approach 2:
The tool employs self-service mechanisms where the hydraulic ram automatically provides the necessary force once activated, and the fulcrum system self-regulates the leverage ratio. This self-service approach reduces the operational burden on the user despite the inherent complexity of the mechanical advantage system.
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
Facilitates easy and controlled pressure release in hydraulic circuits, enabling safe and efficient connection or disconnection of hydraulic lines without manual strain.
Implementation Method 1
at least one threaded clamp engaged with the lower brace and configured to tighten the cutout around a coupler
Implementation Method 2
a plunger release engaged with the upper brace and aligned with the cutout in the lower brace... the plunger release further comprises a handle, a threaded shaft extending from the handle, and a release socket on an end of the threaded shaft
Data Source
AI summary
A system, method, and apparatus for opening a coupler and releasing pressure in a hydraulic circuit comprises an upper brace, a lower brace, a cutout formed in the lower brace, and a plunger release engaged with the upper brace and aligned with the cutout in the lower brace, where the plunger release further comprises a handle, a threaded shaft extending from the handle, and a release socket on an end of the threaded shaft.