Rescue system for vertical roller coaster

The rescue system for the vertical roller coaster comprises a speed reducer, an overrun clutch, a hydraulic motor and a hydraulic control system, an output shaft of the speed reducer is in transmission connection with the roller coaster through chain wheel and chain transmission, and an input shaft of the speed reducer is in transmission connection with the hydraulic motor through the overrun clutch; the hydraulic control system is electrically connected with the hydraulic motor through an oil pipe, the overrun clutch is provided with a wheel brake with a braking function, and the brake is in a braking state when not needed for rescue. The rescue system is high in safety and convenient to operate, and rescue tasks can be rapidly completed when accidents happen. When unforeseen circumstances such as power failure occur, the roller coaster tends to move downwards under the action of gravity, the speed reducer is driven to rotate reversely, the overrun clutch is in a connected state at the moment, and the brake