Elevator emergency braking response monitoring device

The utility model belongs to the technical field of elevator safety, and particularly relates to an elevator emergency braking response monitoring device which comprises a shell, the bottom of the shell is fixedly connected with a base, two rows of installation holes are formed in the surface of the base, and a shell cover is installed on the top of the shell. A lithium battery is placed in the shell, a circuit control board is further installed in the shell, and a timer module and a photoelectric digital measurement module are welded to the surface of the circuit control board; a connecting shaft is arranged at one end of the shell in a penetrating mode, the two ends of the connecting shaft are fixedly connected with a transmission gear and a measuring gear respectively, and a bearing is fixedly connected to the center of the connecting shaft in a sleeving mode. According to the utility model, through the operation of the timer module and the photoelectric digital measurement module, the rotating speed and t