The joint pipe for preventing stagnant water

摘要

The present invention is a joint pipe for preventing the occurrence 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 side ends of the joint pipe 10, and a set groove 11 along the circumferential direction on the inner circumferential surface Is formed, and a multi-stage ring-type packing ring 30 is inserted into the settling groove 11, and a flexible ring portion 31 is provided on the inner circumferential surface of the multi-stage ring-type packing ring 30 A plurality of pieces are formed at regular intervals, so that the inflow of stagnant water 4 causing corrosion at the tip of the outer circumferential surface of the branch pipe 3 is blocked.