Rail Vehicle Coupling Head Pneumatic Unlocking Mechanism
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Solution Overview
Problem
Existing coupling mechanisms for rail vehicles have complex locking and unlocking mechanisms that are not simplified while maintaining safety, and they do not efficiently utilize existing energy sources for automatic coupling and uncoupling.
Innovation Solution
The coupling head integrates an unlocking element connected to the main air line, allowing compressed air to unlock the locking mechanism, simplifying the design and enabling automatic coupling and uncoupling through a control means, using a pneumatic piston/cylinder unit and lever system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex locking and unlocking mechanism is used in the coupling head, then the coupling can be securely locked and unlocked, but the device complexity increases and safety may be compromised
Solution Approach 1:
The patent applies pneumatic principles by connecting the unlocking mechanism to the main air line of the rail vehicle. Compressed air is used to actuate the unlocking element, which simplifies the mechanical structure while maintaining reliable locking and unlocking functions. The pneumatic system leverages the existing air supply infrastructure of rail vehicles, eliminating the need for complex mechanical actuators or external power sources.
2Ease of operation
If manual unlocking mechanisms are used, then the coupling can be unlocked, but the productivity and efficiency of coupling operations are reduced
Solution Approach 1:
The unlocking mechanism is designed to automatically utilize the vehicle's own compressed air supply system to perform the unlocking function. When the coupling needs to be unlocked, the system automatically directs compressed air to the unlocking element through the existing air line infrastructure, eliminating the need for manual intervention and significantly improving operational efficiency.
3Extent of automation
If existing energy sources are not utilized for unlocking, then the locking mechanism can be simple, but the automation capability and operational efficiency are limited
Solution Approach 1:
The main air line, which is already part of the rail vehicle's braking and pneumatic systems, is given an additional function by connecting it to the unlocking mechanism. This multi-functional use of the existing air supply system enables automatic unlocking capability without requiring separate energy sources or additional complex systems, thereby improving automation while avoiding extra energy infrastructure.
Data Source
Figure 1~2
Figure 3~4
AI summary
A coupling, particularly for a rail vehicle, is equipped with a coupling head incorporating an integrated locking/unlocking mechanism (40). This mechanism is associated with a release element (50) for uncoupling, which is actuated by a control device. A main air line (61) carrying an operating pressure for the brakes passes through the coupling head (10). This release element (50), associated with the locking/unlocking mechanism (40), is connectable to the main air line (11). The compressed air in the line unlocks this locking/unlocking mechanism (40), thus uncoupling the coupling. This results in a simpler design of the locking/unlocking mechanism.