Buffer device for packings

A buffer device for packings, comprising at least one base unit (1), the at least one base unit (1) respectively comprised of an elongated, channel-like base frame (2) and two supporting frames (3) joined by the base frame (2), the base frame (2) being made by folding up a punched cardboard (20) and, comprising a rectangular horizontal bottom wall (21A), two rectangular vertical side walls (22A) raised from two opposite long sides of the horizontal bottom walls (21A) and disposed in parallel with each other, and two mounting slots (210A) across the horizontal bottom wall (21A) near two opposite ends thereof and having each two opposite ends respectively extended through either vertical side wall (22A), each supporting frame (3) being made by folding up a respective punched cardboard (30) and, comprising a rectangular vertical side wall (31A) and a rectangular box (32A) side matched with the rectangular vertical side wall (31A), the rectangular vertical side wall (31A) of either supporting frame (3) comprising two vertical top notches (313A) spaced at the top, the mounting slots (210A) being engaged with the top notches (313A) permitting the horizontal bottom wall (21A) of the base frame (2) to be supported on the rectangular box (32A) of either supporting frame (3) and the vertical side walls (31A) of the two supporting frames (3) to block up two opposite open ends of the channel-like base frame (2).