Mechanical false stepping prevention accelerator device

The invention relates to a mechanical false stepping prevention accelerator device which comprises a main body, a fixed block, a brake pressure block, a main body bracket, a knurling pressure shaft, a fastening belt, an adjustable clamping block and a rotating device. One end of the main body bracket is fixed on an upright baffle positioned on the right side of the main body; the other end of the main body bracket is rotationally connected with the upper part of the fixed block; one end of the brake pressure block is fixedly connected with the middle part of the main body bracket and the brake pressure block and the main body are respectively positioned on both sides of the main body bracket; the knurling pressure shaft is arranged between the upright baffles on both sides of the upper part of the main body; the two ends of the knurling pressure shaft can slide along chutes; the knurling pressure shaft slides to the adjustable clamping block along the chutes to be blocked; and one end of the fastening belt is fixed on the rotating device and the other end of the fastening belt is fixedly connected with an accelerator pedal shaft. The mechanical false stepping prevention accelerator device has a simple structure, is convenient to install, has stable performance and can still implement an emergency braking effect when a driver uses an accelerator pedal as a brake pedal for carrying out emergency braking under the emergency condition so as to avoid causing a major casualty accident.