Actuator switching frequency detection device

The utility model relates to the technical field of frequency detection, in particular to an actuator on-off frequency detection device which comprises an actuator shell, a rotating shaft is installed at the upper end of the actuator shell, a rectangular strip is connected to the outer surface of the side end of the rotating shaft, and a housing is arranged on the outer side of the rectangular strip. A counter is installed on the outer surface of one side of the counter, a transmitting head is installed at the top end of the interior of the counter, a receiving head is installed on the lower side of the transmitting head, a through groove is formed in the position, located on the housing, of the joint of the counter and the housing, and limiting plates are connected to the outer surfaces of the left side and the right side of the housing; through the arrangement of a rectangular strip, a housing, a counter, a transmitting head, a receiving head and a through groove, when the pneumatic actuator operates, the c