A pull retainer emergency safety switch includes a plastic housing and a
switch module, wherein, the plastic housing has a push block device and a
pull retainer piece has a ring retainer. The ring retainer abuts on a
rotating handle configured in an upper portion of the push block device,
and causes an underside of the rotating handle to abut on a triangular
push block, and a bottom surface of the triangular push block is utilized
to abut on a top surface of another triangular push block, thereby
enabling a side surface of the second triangular push block to abut upon
a push button of the switch module. When pulling on the pull retainer
pieces the rotating handle with an anticlockwise rotating force produced
that actuates the triangular push block and enables a horizontal
displacement thereby pressing the switch module to actualize rapid
cutting off of power supply.