Bolt used for passenger and goods elevator in construction site

The utility model provides a bolt for a passenger and goods elevator in a construction site, belonging to the technical field of machinery. The bolt disclosed by the utility model solves the technical problem that the existing bolt of the passenger and goods elevator in the construction site can be eroded easily and damaged in bad environment of the construction site. The bolt for the passenger and goods elevator in the construction site comprises a cylindrical shell and a bolt head; the bolt head is positioned inside the shell and can extend out of or retract to one end of the shell; a bolt rod is further arranged in the shell; one end of the bolt rod is connected with the bolt head, and the bolt rod can rotate along the axial direction of the bolt rod; and a limiting structure capable of preventing the bolt head from further extending out after the bolt head partially extends out of the shell is arranged between the bolt head and the shell. The bolt disclosed by the utility model has the advantages of preve