Novel speed reducer device

The utility model belongs to the technical field of speed reducers, and particularly relates to a novel speed reducer device which comprises a driving motor, a speed reducer body, an output shaft, a worm, a worm gear, a voltage stabilizer main shaft, a gear pair and a crank. The driving motor is connected to the outer wall of the speed reducer body and drives the worm to rotate, and the guide limiting sleeve is installed on the outer wall of the speed reducer body through a bearing in a supported mode. The crank has the moving freedom degree in the horizontal direction. According to the speed reducer device for the voltage stabilizer, when a motor control system cannot work, the rocker is manually operated to enable the worm of the speed reducer to drive the main shaft of the voltage stabilizer to rotate, so that the voltage regulating function of the voltage stabilizer is achieved; the crank is designed to be butted with or separated from the end part of the worm, and when the driving motor works normally, t