The utility model discloses a material transportation
system which comprises a stair, a U-shaped sliding way, a transverse buffering groove, an
inertia prevention baffle and a damping mechanism, the U-shaped sliding way is of a strip-shaped U-shaped structure and is fixedly arranged on the upper surface of the stair, and the damping mechanism is arranged on the inner side surface of the U-shaped sliding way. The transverse buffer groove is horizontally formed in a floor below the stair, located at the
tail end of the lowest position of the U-shaped sliding way and communicated with the U-shaped sliding way, the groove direction of the transverse buffer groove is perpendicular to the groove direction of the U-shaped sliding way, and the
inertia prevention baffle is vertically arranged above the opposite groove walls, communicated with the U-shaped sliding way, of the transverse buffer groove. By using the slideway structure, the function of downward transportation is realized through the gravity of materials, so that the slideway can reduce the occupation of the width of
stairs as much as possible, and meanwhile, the
inertia influence is reduced and the
friction force is increased through the damping mechanism. And the transverse buffer groove is formed, materials are guided laterally when making contact with the bottom, and deceleration is achieved through friction between the objects and the bottom face after the objects lose the gravity acceleration effect.