Construction site personnel dynamic acquisition device

The utility model discloses a construction site personnel dynamic acquisition device, and relates to the technical field of construction site monitoring. Supporting columns are fixedly connected to the four corners of the upper surface of the base, a mounting plate is fixedly connected to the upper surfaces of the supporting columns, an insertion block is fixedly connected to the lower surface of a fixing sleeve rod, a through groove is formed in the upper surface of the mounting plate, and the insertion block extends into the through groove and is in sliding connection with the through groove. Two symmetrical mounting grooves are formed in the side wall of the part, extending into the through groove, of the inserting block, clamping blocks are slidably connected into the mounting grooves and extend out of the mounting grooves, compression springs are arranged on the inner side walls of the mounting grooves, and a camera is fixedly connected to the upper surface of the fixing sleeve rod through a lifting mech