A safety hook includes a hook body defining a front opening, a swivel ring coupled to a rear side of the hook body, a latch pivotally connected to the hook body and movable between a latched position and an unlatched position to close/open the front opening of the hook body, a spring member stopped between the hook body and the latch to support the latch in the latched position, and a safety locking member mounted in the latch and movable between a locking position to lock the latch in the latched position and an unlocking position for allowing the latch to be moved from the latched position to the unlatched position.一種安全鉤,包含前端具有開口的鉤體,在鉤體的末端設有轉環,在鉤體的內部鉸接有防脫閂,並具有保持於防脫閂滑動的安全鎖,及支撐於鉤體和防脫閂間的彈簧,防脫閂的閂臂平時因為彈簧的彈性力而封閉開口的上部,閂臂的下方具有缺口,其與開口的下部界定出封閉孔,以便與所連接的扣環互相鎖扣。當安全鎖滑動至閉鎖位時,可對防脫閂產生閂鎖功能,避免防脫閂被誤動而使開口敞開,造成扣環從鉤體脫落的意外。當安全鎖滑動至解鎖位時,則允許防脫閂被操作而向外擺動,使閂臂離開鉤體的開口,以便解下扣環。10‧‧‧安全鉤20‧‧‧鉤體21‧‧‧開口22‧‧‧閂室23‧‧‧軸頸25‧‧‧扣件27‧‧‧下部28‧‧‧凹部30‧‧‧防脫閂31‧‧‧閂臂33‧‧‧缺口34‧‧‧封閉孔35‧‧‧滑槽36‧‧‧閉鎖穴37‧‧‧解鎖穴38‧‧‧槽口39‧‧‧尾翼40‧‧‧彈簧50‧‧‧安全鎖51‧‧‧操作柄52‧‧‧彈簧栓53‧‧‧突部60‧‧‧轉環61‧‧‧軸孔
