Milk cow three-dimensional size measuring mechanism

The utility model relates to a dairy cow three-dimensional size measuring mechanism, which comprises a bottom plate, a scanning table arranged at the top of the bottom plate, a three-dimensional scanner body arranged at the top of the bottom plate, and an adjusting group arranged at the top of the bottom plate. According to the dairy cow three-dimensional size measuring mechanism, the dairy cow is pulled to the scanning table, the position of the three-dimensional scanner body is adjusted according to the specification and size of the dairy cow to be measured, the first motor is started to drive the line roller to rotate, and the line roller rotates forwards and backwards to drive the sliding plate and the three-dimensional scanner body to be adjusted up and down; meanwhile, a second motor is started to drive a first gear to rotate, the first gear rotates to drive a second gear, a rotating shaft and the dairy cow on the scanning table to rotate slowly, meanwhile, a third motor can be started to drive the thre