COUPLING PIPE FOR DRAINPIPE

摘要

A coupling pipe for a drainpipe is provided to insert a packing assembly into an inlet of a joint pipe and connect a drainpipe to the joint pipe by maintaining the packing assembly into ring shape and forming a single body. A coupling pipe for a drainpipe prevents the leak of fluid by inserting a packing assembly(5) into an inlet of a joint pipe. A connection film(9) is connected to outer circumference of the front and rear packing ring part with the front and rear packing ring part maintained at regular interval. A blade part(11) is formed in the inner circumference of the rear packing ring part and integrated with a ductile packing(6). An arc contacting with inner surface of the packing ring part is formed on the front and rear surface between the front and rear packing ring part. A hard supportive ring(12) having a pointy fitting part(14) is detachably inserted.