SAFETY CONNECTING STRUCTURE FOR PLASTIC PIPE USING HEAD

摘要

A safety connecting apparatus for a plastic pipe using a head is provided to employ a fixture unit having an anti-releasing ring to fix a rotation shaft so that the plastic pipe is not released. A safety connecting apparatus includes a pressure wheel(16) and a head(11). The pressure wheel has a protrusion part(12). The protrusion part extends from the head, and is formed at the outer circumference with a plurality of installation grooves(13) and a locking bar at a predetermined interval. The head is coupled to the pressure wheel, and has a plurality of coupling grooves for a fixture unit. The fixture unit is press-fitted into the coupling groove so that the head is coupled to the pressure wheel. The coupling groove includes protrusions extending from two opposite surfaces thereof, an opening at the central portion, and a space part provided at the left side of the protrusion.