Hydraulic Quick-Coupling With Automatic Center Adjustment
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Solution Overview
Problem
Existing emergency rescue equipment faces challenges with slow and inefficient tool switching due to mechanical errors, wear, and complex operation requirements, leading to low rescue efficiency and safety risks.
Innovation Solution
A multi-degree-of-freedom automatic center-adjusting device and hydraulic quick-coupling device that includes an active coupling valve set and dynamic adjustment swing rack, allowing for flexible movement and error compensation to facilitate smooth coupling of hydraulic power oil lines, addressing alignment issues and mechanical errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual tool switching is used in rescue equipment, then operational control is simple, but assembly and disassembly time exceeds 30 minutes and rescue efficiency is low
Solution Approach 1:
The hydraulic coupling valve core automatically performs centering and alignment through spring force and guide slots when coupling occurs, eliminating the need for manual positioning and adjustment during tool switching operations
Solution Approach 2:
The patent replaces manual mechanical operation with an automatic mechanical system where spring force and guide slot geometry automatically achieve valve core alignment and coupling, reducing tool switching time from over 30 minutes to a rapid automatic process
2Manufacturing precision
If hydraulic coupling valve core alignment is achieved through precise mechanical manufacturing, then coupling accuracy is high, but manufacturing cost and complexity increase
Solution Approach 1:
The guide slot acts as an intermediary mechanism that transforms the coupling motion into automatic valve core centering, simplifying the coupling process while maintaining high alignment accuracy without requiring complex precision mechanical structures
Solution Approach 2:
The patent uses spring force to dynamically adjust the valve core position, changing the mechanical state from rigid fixed positioning to flexible spring-based centering, which simplifies manufacturing while achieving accurate alignment
3Stability of the object's composition
If rigid coupling structure is used for hydraulic connections, then structural stability is high, but mechanical errors and wear prevent proper alignment
Solution Approach 1:
The patent introduces dynamic elements including spring force and guide slot geometry that allow the valve core to automatically adjust its position during coupling, transforming a static rigid structure into a dynamic self-adjusting system that compensates for mechanical errors and wear
4Ease of operation
If operator leaves cab for tool loading and unloading, then tool switching can be performed, but safety risks increase due to dangerous rescue site conditions
Solution Approach 1:
The automatic coupling mechanism performs tool switching without requiring operator intervention, with the spring-based valve core centering and guide slot alignment occurring automatically during coupling, allowing operators to remain safely in the cab throughout the process
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
Enhances coupling accuracy and speed, reducing the risk of mechanical damage and improving rescue efficiency by enabling quick and safe tool switching without manual intervention.
Implementation Method 1
a hydraulic valve core, a guide sleeve, limit screws, and a spring, the spring limit hole is disposed at a back side of the hydraulic valve core, the spring limit hole is used to constrain the spring, the hydraulic valve core is supported by the springs
Data Source
AI summary
A multi-degree-of-freedom automatic center-adjusting device, a hydraulic quick-coupling device, and rescue equipment are provided. The automatic center-adjusting device includes an active coupling valve set, a spring, and a dynamic adjustment swing rack. A first end of the dynamic adjustment swing rack is fixed to operation tools, and a second end of the dynamic adjustment swing rack is connected to the active coupling valve set through the spring. The dynamic adjustment swing rack includes a frame, a limit slot, and a spring limit cylinder, wherein the frame is used to support and fix the active coupling valve set, the limit slot is used to define a limit activity position of the active coupling valve set, and the spring limit cylinder is used to constrain the spring. The automatic center-adjusting device is used to solve technical problems of position errors and a center mismatch in a coupling process.