Safety protection device for hoist

The invention relates to the technical field of electric rotating shaft protection, and provides a safety protection device for a hoist, the safety protection device comprises a protection device main body, a fixing assembly, a protection assembly and a noise reduction assembly, one side of the protection device main body is provided with a display and a control button, and the fixing assembly comprises a driving motor; the driving motor is installed at the top of the protection device body, a shaft of the protection device is firstly clamped into the four arc-shaped fixing plates through the arc-shaped fixing plates, the telescopic rods and other structures, the self-centering and preliminary positioning effects are achieved through the automatic adjusting effect of reset springs, then a rotating disc is rotated to achieve rotation of a two-way screw rod, and the rotation of the two-way screw rod is achieved. The two-way screw drives the two clamping plates to move, when the two clamping plates move mutually