Steering limiting device and transport vehicle

The utility model discloses a steering limiting device which can be applied to a transport vehicle and comprises a gear ring and a clamping block, the gear ring is arranged on a wheel module of the transport vehicle, a clamping groove is formed in the clamping block, clamping teeth are arranged in the clamping groove, the clamping block can be meshed with the gear ring through the clamping teeth, an abutting part is further arranged on the clamping block, and when the clamping teeth are meshed with the gear ring, the abutting part can abut against the gear ring. The abutting part can abut against a main beam of the transport vehicle. By the adoption of the technical scheme, the relative angle between the wheel module and the main beam can be conveniently and rapidly fixed, so that the assembling time and labor of the limiting device are greatly saved, and a transport vehicle is more convenient to transfer. The utility model further discloses a transport vehicle which comprises a main beam and a wheel module,