Hydraulic Rescue Device Piston Rod Stroke Markings
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Solution Overview
Problem
Current hydraulic rescue devices face limitations in speed and efficiency due to technical limitations in pump performance, oil volume, and actuating forces, which can lead to delays and errors during rescue operations, potentially causing serious consequences.
Innovation Solution
Incorporating markings on the piston rod that indicate the remaining stroke of the hydraulic rescue device, allowing rescue personnel to accurately assess the available adjustment path and take timely measures to complete the rescue operation effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the pump performance and oil volume are increased to improve actuating speed, then the rescue operation speed is improved, but the device complexity and portability are worsened
Solution Approach 1:
The markings are applied to the piston rod in advance during manufacturing, providing rescue personnel with pre-prepared visual information about the remaining stroke. This preliminary action eliminates the need for complex real-time measurement systems during rescue operations, maintaining simple device architecture while improving operational efficiency.
2Adaptability or versatility
If the actuating stroke is extended to handle more severe cases, then the versatility is improved, but the device complexity and control difficulty are worsened
Solution Approach 1:
The markings on the piston rod provide visual feedback to rescue personnel about the current position and remaining stroke of the hydraulic cylinder. This feedback mechanism allows operators to accurately assess the actuating progress and make informed decisions about when to reposition the device or adjust the rescue strategy, effectively managing extended stroke ranges without increasing control complexity.
3Ease of operation
If the pump performance is limited to maintain portability, then the ease of operation is improved, but the productivity and rescue speed are worsened
Solution Approach 1:
The markings serve as an intermediary information carrier between the hydraulic system's internal state and the rescue personnel. By providing external visual indicators of the piston rod position, the markings enable operators to efficiently monitor and plan their rescue actions without needing to understand or manually calculate the complex hydraulic parameters, thus maintaining simple portable equipment while improving operational productivity.
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 solution enables targeted and efficient rescue operations by providing clear, readable information about the remaining stroke, preventing misjudgments and allowing for timely repositioning or use of additional tools, thereby enhancing the speed and safety of rescue processes.
Implementation Method 1
a hydraulic cylinder (5) with a cylinder tube (6) and with at least one piston rod (7), which can be extended relative to the cylinder tube (6) by applying hydraulic pressure
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a hydraulic rescue device (1) for manual operation by a rescuer. The rescue device (1) comprises a hydraulic cylinder (5) comprising a cylinder tube (6) and at least one piston rod (7, 7') that can be adjusted relative to the cylinder tube (6), at least one support surface (17) formed on the cylinder tube (6) for supporting the rescue device (1) in a load-transferring manner on first object surfaces that can be freely selected by a rescuer, at least one second support surface (19), formed on the at least one piston rod (7, 7'), for supporting the rescue device (1) in a load-transferring manner on second object surfaces that can be freely selected by a rescuer, and at least one control valve (14) that can be operated manually. On the casing surface (22, 22') of the at least one piston rod (7, 7'), at least one or more markings (23, 23'), which can be read by a rescuer, are formed, which at least one marking (23, 23') is provided at least to signal a remaining stroke (24) that is still available and/or an adjusting stroke (25) already travelled of the at least one piston rod (7, 7') with respect to the cylinder tube (6).