CORRUGATED HOSE CONNECTION ASSEMBLY

The invention relates to a connecting device having a one-piece connecting piece and a corrugated pipe which is fluidically connected to the connecting piece. The connecting piece is provided with a penetrating channel extending along the central axis, and the penetrating channel is communicated with a mandrel formed on the connecting piece. The mandrel has a retaining region and a sealing region. At least two holding elements are arranged in the holding region in a way of being axially adjacent to the central axis. The corrugated pipe is inserted onto the mandrel and disposed within the retaining region and the sealing region. Furthermore, the retaining region and the sealing region are arranged axially consecutively with respect to the central axis, the mandrel has a smooth surface facing the corrugated pipe in the sealing region, and the outer diameter of the surface facing the corrugated pipe is greater than the inner diameter of the bellows facing the mandrel at the troughs. The at least one holding element is designed as a corrugated element, in particular of the entire circumference, of the mandrel relative to the central axis. An outer diameter of the corrugated element facing the corrugated tube at a corrugation maximum point of the corrugated element is greater than an inner diameter of the corrugated pipe at a trough.