SEALING STRUCTURE OF ONE-TOUCH TYPE TUBE FITTING

摘要

PURPOSE: A sealing structure for one-touch type tube fitting is provided to improve a sealing effect of an O-ring installed to seal the one-touch type tube fitting by installing a backup ring between the O-ring and a hose stopper. CONSTITUTION: An O-ring(34) is inserted between an inner portion of a hole(32) formed at a center of a body(30) of a tube fitting and an outer peripheral portion of a hose(40). A calking ring(36) is fixed to a terminal end of the hole(32) of the body(30). A hose stopper(38) is inserted into the calking ring(36). The hose(40) makes contact with a locking protrusion of the hose stopper(38). A hose guide(42) is inserted into the terminal end of the hose(40). The terminal end of the hose(40) is supported by the hose guide(42). The hose guide(42) is locked with the body(30) by passing through the hole(32).