A kind of safeguard construction of high pressure steam sterilization machine,Sterilizer includes cover structure,Cover structure include lid,Turning handle and swingle ' swingle extend from turning handle and are pivotally connected what lid,Safeguard construction includes sleeve and safety lock； Sleeve covers outside solid what swingle,And between position what turning handle and lid； Safety lock include ontology,Hollow screw and flexible latch lever,Body interior has cavity and is connected to the air inlet of cavity,Hollow screw extends from ontology and is connected to cavity and sleeve,Flexible latch lever is worn in what hollow screw,Flexible latch lever is telescopically fixed with swingle stopper； Thereby,To reach the effect for the structural strength for increasing safety lock.一種高壓蒸汽滅菌機的安全結構，滅菌機包含鍋蓋結構，鍋蓋結構包含蓋體、轉柄及旋轉桿’旋轉桿自轉柄延伸並樞接於蓋體，安全結構包括套筒及安全鎖；套筒套固於旋轉桿外部，且位於轉柄與蓋體之間；安全鎖包含有本體、中空螺桿及伸縮閂桿，本體內部具有容腔及連通容腔的進氣口，中空螺桿自本體延伸且連通容腔和套筒，伸縮閂桿穿設於中空螺桿內，伸縮閂桿可伸縮地與旋轉桿卡摯固定；藉此，以達到增加安全鎖的結構強度之效果。
