Heavy centrifugal trigger type safety lock

The utility model belongs to the technical field of aloft work safety devices of construction machinery. The utility model relates to a safety lock, in particular to a heavy centrifugal trigger safetylock. Including a panel, the panel is provided with a rope inlet, a rope outlet and a steel wire rope channel. A rope pressing mechanism located in the panel is arranged on one side of the steel wirerope channel. A centrifugal triggering mechanism rotationally connected to the panel is arranged on the other side of the panel; an unlocking and locking mechanism is also arranged on the panel; thecentrifugal triggering mechanism is in transmission connection with the unlocking and locking mechanism in a triggering state; a guide shaft and a base which are positioned below the rope pressing mechanism are arranged in the panel; a wedge-shaped groove surrounding the steel wire rope channel is formed in the base, the guide shaft is parallel to the steel wire rope channel and fixedly installedat the top of the base, a ro