Transport vehicle in metal roof construction process

The utility model discloses a transport vehicle in the metal roof construction process, which comprises a transport mechanism, the transport mechanism comprises a vehicle body and a guide rail, the bottom of the vehicle body is provided with a moving mechanism, the moving mechanism comprises a clamping shaft and wheels, and the inner side of the vehicle body is provided with a wheel width adjusting mechanism. The transport vehicle is characterized in that the wheel width adjusting mechanism comprises a two-way screw rod and a sliding block, a rotating limiting assembly is installed on the two-way screw rod, a clamping resistance reducing mechanism is installed on the wheel, the transport vehicle in the metal roof construction process can adjust the distance between the guide rail and the wheel according to different distances between supporting beams at the bottom of a roof, and therefore the distance between the guide rail and the wheel is adjusted. When the distance between the wheels is narrow, the catch w