COOLANT SEALING STRUCTURE OF PROJECTION TELEVISION

摘要

PURPOSE: A coolant sealing structure is provided to prevent foreign materials from putting in the coolant by preventing the coat-peeling phenomenon generated on sealing after injecting the coolant into the cathode ray tube. CONSTITUTION: A sealing cock(20) of a plastic resin material is used to seal a coolant injection hole(11) of a coupler(10). An engaging boss(13) on both of which cut portions(12) are formed is formed on the upper side of the coolant injection hole(11) of the coupler(10). A bridging groove(14) is formed in the circumferential direction at the inner periphery of the engaging boss(13). An engaging protrusion(15) is formed one side of both cutting portions(12). A clamping groove(21) is formed on the center of the sealing cock(20) and a stopper(22) is formed on both of the upper outer periphery of the sealing cock(20).