Plug Connector Locking Device With Fail-Safe Manual Release
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Solution Overview
Problem
Industrial plug connectors require a compact, reliable, and low-current locking mechanism that maintains the lock during power failures and allows for manual release, while being resistant to dirt, grime, and moisture, and capable of withstanding high withdrawal forces.
Innovation Solution
A locking device with a first and second locking means, featuring a blocking element and an actuator, where the blocking element is designed to prevent separation of the locking means, and includes a quick release ball lock pin mechanism with a mandrel and balls, and a manual activator for emergency unlocking, ensuring secure mechanical locking and fail-safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a complex locking device is used to withstand high withdrawal forces and protect against vandalism, then the locking strength is improved, but the device becomes space-intensive and complex
Solution Approach 1:
The locking device is divided into two separate locking means (first locking means on male connector, second locking means on female connector) that work together. Each locking means has a simplified structure with blocking elements that engage with each other, distributing the locking function across multiple simple components rather than one complex mechanism.
Solution Approach 2:
The first and second locking means are designed to be nested within the plug connector housing, with the locking means fitting inside the connector body. This nested arrangement protects the locking mechanism from external dirt and moisture while maintaining a compact overall structure.
2Object-affected harmful factors
If an internal locking device is used to protect from dirt, grime and moisture, then the protection from impurities is improved, but an external activator is still required adding complexity
Solution Approach 1:
The locking means are designed to automatically engage and lock when the male and female connectors are mated. The blocking elements automatically move into the locked position without requiring external activation, making the system self-servicing and eliminating the need for external actuators or complex control mechanisms.
3Volume of moving object
If a compact locking device is used for conventional industrial plug connectors, then the volume is reduced, but the ability to withstand high withdrawal forces may be compromised
Solution Approach 1:
The blocking elements are pre-positioned within the locking means during manufacturing. When the connectors are mated, the blocking elements are already in the correct position to engage and lock, eliminating the need for additional space for actuation mechanisms and maintaining strength in a compact design.
Data Source
AI summary
A locking arrangement for plug connectors, comprising a first locking device and a second locking device. The two locking devices can be plugged together and engaged with one another. At least one blocking element is provided for engaging the first locking device with the second locking device. The blocking element is suitable for mechanical engaging and can be actuated and released via an actuator. In addition, another actuator is arranged in the first locking device or in the second locking device to protect against failure of the locking arrangement. The engaging of the two locking devices can be released by the actuator, even when the actuator fails. The first locking device and the second locking device are provided for use in a plug and a corresponding counter plug.