Vacuum-assisted brake device of right three-wheeled motorcycle

The utility model relates to a vacuum-assisted brake device of a right three-wheeled motorcycle, which comprises an engine, a vacuum pump, a vacuum-assisted device and a disc type brake, wherein the vacuum pump is fixedly arranged on an end cover at one side of the engine, a rotating shaft of the vacuum pump is connected with a motive power output shaft of the engine, an oil inlet pipe and an oil outlet gas pipe of the vacuum pump are connected with an oil cup of the vacuum pump, a gas inlet pipe of the vacuum pump is connected with an end opening of a vacuum one-way valve of the vacuum-assisted device through a vacuum tank, a brake main cylinder oil cup is connected with a hydraulic oil end opening arranged at the upper end of the vacuum-assisted device, the brake output end of the vacuum-assisted device is connected with the disc type brake, and the vacuum-assisted device is also connected with a brake pedal. Compared with the prior art, the utility model has the advantages of simple structure, convenient u