Push-in Emergency Stop Cover With Plug-in Unit Locking
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Solution Overview
Problem
Existing emergency stop covers lack a plug-in unit, making them inconvenient and unsafe to use, as they require additional locking mechanisms to prevent accidental opening when the stop button is depressed, and the locking tongue can be inadvertently opened by direct pushing when not locked.
Innovation Solution
A push-in emergency stop cover with a plug-in unit that uses a single key to secure the cover, featuring a retainer cover, emergency stop button, lock cover, lock base, and slide blocks with springs, where the key's insertion and removal control the opening and closing of the cover, and a lock base allows for padlock securing without key removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional emergency stop cover without plug-in unit is used, then the structure is simple, but additional locking means are required to prevent accidental opening
Solution Approach 1:
The patent combines the plug-in unit with the emergency stop cover body, integrating the locking mechanism directly into the cover structure. The plug-in unit includes a locking tongue that engages with a lockstitch on the lock base, merging the functions of the cover and locking mechanism into a single integrated assembly, thereby eliminating the need for separate additional locking means.
Solution Approach 2:
The patent introduces a plug-in unit as an intermediary component between the cover and base. This plug-in unit includes a locking tongue that acts as a mediator to engage with the lockstitch, providing the necessary locking function. The plug-in unit serves as the intermediate element that enables secure connection without requiring complex additional locking mechanisms.
2Ease of operation
If the locking tongue projects through the stop button, then the cover can be opened by pushing the shutter, but this reduces safety when not locked
Solution Approach 1:
The patent implements preliminary action by requiring the plug-in unit to be inserted into the locking position before the cover can be opened. The locking tongue of the plug-in unit must first engage with the lockstitch on the lock base, establishing the locked state. This preliminary locking action ensures that the cover remains secure and cannot be accidentally opened by simply pushing the stop button, thereby improving safety while maintaining ease of operation through the designed unlocking mechanism.
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
The solution provides a convenient, safe, and reliable operation by preventing accidental opening when the key is removed, ensuring the cover remains locked and secure without the need for additional locking means, while also preventing foreign objects from entering the keyhole.
Implementation Method 1
a lock spring assembled in the lock cover together with the plug-in unit, slide blocks, a push button and associated springs
Implementation Method 2
the slide blocks and springs are located in a groove of the lock cover
Data Source
AI summary
A push-in emergency stop cover with a plug-in unit includes a retainer, a stop button, a lock cover, a lock base, a combination of a lock and lock spring assembled in the lock cover, a plug-in unit, a slide block, a push button and an associated spring, a slide block and associated spring, a groove provided in said lock cover, said plug-in unit having a key extending through an opening provided in said stop button and to one side of said slide block, the push button having a push rod provided with an inclined plane and a raised block having an inclined plane at the rear of the lock. When the plug-in unit is inserted in the stop button to separate the lock from a lockstitch of the lock base, the lock cover will open; the lock cover will not open when the plug-in unit is removed after the cover is locked. The stop button has a retainer to cover an opening in the stop button to prevent foreign obstacles from falling into the opening.