Protective cover of elevator pulley

The utility model discloses an elevator pulley protective cover which comprises two pulley mounting plates, pulley bodies are arranged on the opposite faces of the two pulley mounting plates, L-shaped clamping grooves are formed in the upper surfaces of the pulley mounting plates, concave plates are placed on the upper surfaces of the pulley mounting plates, and the concave plates are connected with the L-shaped clamping grooves through bolts. An L-shaped cavity is formed in the concave plate, a spring is fixedly connected to the inner wall of the L-shaped cavity, an L-shaped plate is slidably connected to the inner wall of the L-shaped cavity, and a cambered surface clamping block is fixedly connected to the lower surface of the L-shaped plate. According to the protective cover of the elevator pulley, the cambered surface clamping block is clamped with the L-shaped clamping groove in the pulley mounting plate, so that the concave plate can be conveniently fixed on the pulley mounting plate, meanwhile, the pu