The joint pipe for preventing stagnant water

摘要

The present invention is a joint pipe for preventing the generation of stagnant water. Its specific configuration is a joint pipe 10 connected to the branch pipe 3 is provided, protrusions 12 are formed at both ends of the joint pipe 10, and the inner circumferential surface has a seating groove 11 along the circumferential direction. is formed, and the multi-stage annular packing ring 30 is inserted into the seating groove 11 , and the flexible ring part 31 is formed on the inner circumferential surface of the multi-stage annular packing ring 30 . By forming a plurality of spaced apart at regular intervals, the inflow of the stagnant water (4) causing corrosion at the tip of the outer peripheral surface of the branch pipe (3) is blocked.