Position arrival switch assembly and automatic cleaning apparatus

This invention describes a specialized mechanical switch for robotic floor cleaners. It helps the cleaner detect when it has reached a specific location, such as its charging station or a designated area on a carpet. When the cleaner bumps into something at that spot, a button is pressed, which then uses an elastic arm and a trigger piece to activate an internal switch, signaling its arrival. The claims specify a version where the internal switch itself has an elastic part that is squeezed by the trigger, and a stopper prevents it from being over-compressed, ensuring durability.