Magnetic Ring Assembly Utility Model Patent

A mounting mechanism for mounting the magnetic ring:

In general magnetic ring assembly device, the magnetic ring is ejected by the ejector rod and installed into the buzzer. The ejector pin is easily deformed, causing the machine to jam and damage the buzzer. We designed an installation structure to avoid these issue. Utilizing the principle of magnetic polarity, the magnetic ring can be installed into the buzzer without touching the buzzer.