Inside a variety of factories, some large and medium-sized machinery and equipment or electrical appliances can be seen on the eye-catching red button, the standard should be marked with the same meaning of "Emergency Stop" red font. These buttons are collectively known as emergency stop buttons. This button is simply pressed downwards. This button can be pressed directly downwards to quickly and immediately stop the whole machine or release some parts of the drive. In order to start the machine again, the button must be released, i.e. simply rotate it clockwise by approximately 45° and release it, and the pressed part will spring up. That's "release".
In the industrial safety requirements where some of the transmission parts will be directly or indirectly in the event of anomalies that can cause harm to the human body of the machine must be protected, the emergency stop button is one of them. Therefore, in the design of some machines with transmission parts must be added to the emergency stop button function. And to be set in the personnel can be easily pressed on the surface of the machine, there can not be any obstruction.