Pre-embedded hoisting piece for prefabricated staircase

The utility model discloses a pre-embedded hoisting part for a prefabricated stair, which relates to the field of hoisting of prefabricated stairs and comprises a pre-embedded body used for being pre-embedded in reinforced concrete. The hoisting pipe is inserted into one end of the embedded body, the embedded body is used for fixing the hoisting pipe, and the hoisting pipe is used for hoisting a prefabricated stair; the built-in locking mechanism is movably arranged at the position, close to the embedded body, in the hoisting pipe; by arranging the built-in locking mechanism, on one hand, the hoisting pipe can be tightly fixed in the embedded body to ensure the stability of the hoisting pipe, and on the other hand, the hoisting pipe can be detached from the interior of the embedded body through the built-in locking mechanism to realize the reutilization of the hoisting pipe; the built-in locking mechanism is located at the butt joint of the embedded body and the hoisting pipe, so that the strength of the butt