The utility model relates to the technical field of
building construction, and discloses a material lifting mechanism for building a steel structure shed, which comprises a base, a lifting component is mounted at the top of the base, a lifting bin is fixedly connected to the top of the lifting component, a winding roller is rotatably connected to the inside of the lifting bin, a lifting
rope is fixedly connected to the periphery of the winding roller, and the lifting
rope is fixedly connected to the top of the lifting component. A mounting plate is fixedly connected to the outer wall of the hoisting bin, a motor is fixedly connected to the top of the mounting plate, a self-locking
assembly is mounted in the middle of the mounting plate, a lubricating
assembly is mounted in the middle of the hoisting bin, and an output
assembly is mounted at the bottom of the mounting plate. According to the self-locking device, after the motor stops running, the self-locking assembly can rapidly trigger a
locking mechanism, it is ensured that the lifting
rope is firmly fixed through the
friction effect of the self-locking wheel and the
rubber ring and the cooperation of the clamping column and the spring, and the risk of loosening of the lifting rope or falling of materials can be effectively avoided even in unforeseen circumstances.