Preset single riser whirl amortization tee junction device of bushing type

The utility model relates to a building water supply and drainage is the whirl structure for the pipeline, specifically is preset single riser whirl amortization tee junction device of bushing type, including the longitudinal tie pipe, with the fixed transverse connecting tube as an organic whole of longitudinal tie pipe, wherein: the longitudinal tie pipe is big -end -up's reducing tapering pipe,transverse connecting tube and longitudinal tie pipe converges side direction dilatation pipe through horizontal branch pipe to be connected as an organic wholely, and it is the curved pipe that thishorizontal branch pipe converges side direction dilatation pipe, horizontal branch pipe converges side direction dilatation pipe's inner chamber for the horizontal branch pipe dilatation cavity thatconverges, and this horizontal branch pipe converges and is provided with the earial drainage guide way on the inner wall of dilatation cavity, inner wall that the delivery port next -door neighbour longitudinal tie of this ear