Crank arm type elevator work platform

The invention discloses a crank arm type elevator work platform which comprises a platform body, a base, a turn plate, an operating panel and a platform mounting ladder. The bottom end of the platform mounting ladder is hinged to the platform body, and a lock catch is arranged between the platform mounting ladder and a guard bar. The turn plate comprises a driving gear, a driven gear and a fixed base. The fixed base is fixed to the base. The driven gear is arranged on the fixed base. The driven gear is fixedly connected with the bottom face of the platform body. The driving gear is connected with the operating panel through a connecting rod. The crank arm type elevator work platform is rotated by rotating the operating panel, no line or hydraulic pipeline needs to be laid on a front arm, and the crank arm type elevator work platform is simple in structure, low in cost and nor prone to damage; workers can reach and leave the work platform by climbing the platform mounting ladder, the platform mounting ladder can be used as the guard bar after the workers reach the work platform, and the crank arm type elevator work platform is simple in structure and convenient to use.