Emergency brake auxiliary device for automobile vacuum booster

The utility model relates to a safety protection device of a vehicle, in particular to an emergency brake auxiliary device of a vehicle vacuum booster. The utility model solves the problems that the brake reaction time is slow, and the braking distance is long, etc. during the emergency brake of the prior vehicle. The utility model comprises a casing and a baffle plate which separates the casing into an excitation cavity and a boosting cavity and is arranged in the casing, an air inlet hole arranged on the baffle plate, a push rod arranged in the middle of the baffle plate which penetrates through, a diaphragm fixed at the front end of the push rod, a striking ball arranged in the excitation cavity, an air inlet hole arranged on the rear end surface of the excitation cavity, and a spring arranged in the boosting cavity; wherein, one end of the spring is fixed with the diaphragm, and the other end is clipped and connected with a retaining ring at the front end of the boosting cavity. The utility model aims at