In-place detection device and shared bicycle

The utility model discloses an in-place detection device and a shared bicycle. The in-place detection device comprises a shell, a first through hole is formed in the side wall of the shell, and a switch is fixedly arranged in the shell; the triggering assembly is located in the shell; the elastic piece is located in the shell, the elastic piece is connected with the trigger assembly, and the elastic piece can drive the end of the trigger assembly to stretch out of the first through hole of the shell; in a state that the end part of the trigger assembly extends out of the first through hole of the shell, the trigger assembly triggers the switch; when the end portion of the trigger assembly is compressed back to the first through hole of the housing, the trigger assembly does not trigger the switch. According to the invention, after the part on the bicycle is separated from the preset position, the trigger assembly abutting against the separation part generates displacement due to pressure release, so that the