US Patent 10047948 Torch tail cap and torch

A torch tail cap includes a tail cap base which has a middle portion provided with an inner cavity, a life hammer which is axially inserted into the inner cavity of the tail cap base, and a retractable ring which is rotationally installed on the periphery of the tail cap base and is connected with the life hammer. The retractable ring drives the life hammer to extend out of or retract back into the inner cavity during rotation. The life hammer can be conveniently accommodated in the tail cap when not in use.