Abstract: A pallet transport device having a securing element positioned between two longitudinal rails in projections of a non-driven pallet transport device. A shaped body is seated on an axle. When docking with a driven pallet transport device, each projection is pushed into a docking receptacle so that a lower, shaped activation surface contacts and pushes the shaped body into a specified position. The shaped body thus pivots about an axis and the pallet can be displaced as desired. When the pallet transport device is undocked, the shaped body pivots upwards and the securing surface locks the pallet in a locking direction. Thus, the pallet transport device can be locked or unlocked without external help and has a high degree of operational dependability.