Linked Rail Fall Arrester Assembly for Single-Shaft Installation
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Solution Overview
Problem
Existing rail-type fall arresters require cumbersome and inconvenient installation processes, often necessitating multiple individuals or conversion devices, which complicates their use in aerial climbing and transportation environments.
Innovation Solution
A linkage operation assembly that includes a fixed main body, second and third wheel body assemblies, and a linkage member, allowing the drive rotary shaft to rotate and drive the second and third wheel sets, facilitating the installation and disassembly of the fall protection device by rotating a single component.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rail-type fall arrester is installed using conventional methods, then the fall protection device can be securely mounted on the rail, but the installation process becomes cumbersome and requires multiple individuals or conversion devices
Solution Approach 1:
The patent employs a dynamic linkage mechanism that allows the fall protection device to automatically adjust its state between locked and unlocked positions. The linkage member connects the locking lever to the wheel assembly, enabling automatic state switching during installation and operation, thereby simplifying the installation process while maintaining secure mounting
Solution Approach 2:
The fall protection device incorporates a self-servicing mechanism where the locking lever automatically engages with the rail structure through the linkage mechanism. The device uses its own operational movements to trigger the locking and unlocking states, eliminating the need for external conversion devices or multiple operators during installation
2Reliability
If the fall protection device uses a secure locking mechanism, then safety is ensured, but the device becomes more complex and harder to operate
Solution Approach 1:
The patent merges the locking mechanism with the wheel assembly through the linkage member. The locking lever is mechanically integrated with the wheel rotation movement, so that the same operational movement that drives the wheel also triggers the locking action. This combination ensures reliable locking while maintaining simple operation, as users only need to rotate the wheel to both move the device and engage/disengage the lock
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
Simplifies the installation and disassembly of fall protection devices on rails by enabling the linkage operation assembly to be switched between states with minimal effort, reducing the need for multiple operators and streamlining the process.
Implementation Method 1
a sixth spring, having an end connected to an end of the sliding shaft, and the other end abutting against a bottom of the sliding hole
Implementation Method 2
a second wheel body assembly installed on the fixed main body and configured to roll along an inner support surface of the rail
Data Source
AI summary
The present application relates to the technical field of linkage mechanisms, and provides a linkage operation assembly, a fall protection device and a fall protection system. The linkage operation assembly includes a fixed main body configured to be installed on an outer support surface of a rail and move along the rail; a second wheel body assembly installed on the fixed main body for rolling along an inner support surface of the rail and including a second wheel set and a drive rotary shaft; a third wheel body assembly installed on the fixed main body for rolling along an inner support surface of the rail and including a third wheel set and a driven rotary shaft; and a linkage member disposed between the drive rotary shaft and the driven rotary shaft. When the drive rotary shaft of the linkage operating assembly rotates, the second wheel set is driven to rotate, and the driven rotary shaft and the third wheel set are driven to rotate through the linkage member. Therefore, during the installation process of the linkage operation assembly, only the drive rotary shaft needs to be rotated to switch the state of the linkage operation assembly, so as to facilitate the installation of the linkage operation assembly. Similarly, when the linkage operation assembly is disassembled, only the drive rotary shaft needs to be rotated.