Foldable miter saw with safety device

A foldable miter saw with safety device, comprising:

• a base unit comprising a substantially horizontal working surface and an axle holder connected to said working surface, said axle holder forming a folding axis parallel to said working surface;
• and
• a cutting unit comprising a rotating member arranged on said axle holder so as to rotate around said folding axis, a supporting arm pivotally connected to said rotating member, a blade pivoted to said supporting arm, a handle connected to said supporting arm, a driving unit operable to drive said blade to rotate and a safety assembly set on said handle;
• wherein:
• said handle comprises a first shell portion, a second shell portion aligned with said first shell portion, a chamber defined by said first shell portion and said second shell portion, and a first through hole and a second through hole corresponding to each other and passing through said first shell portion and said second shell portion respectively;
• said safety assembly comprises a safety switch and a safety member movably inserted in said first through hole and said second through hole, said driving unit being operable to drive said blade to rotate when said safety switch is operated, said driving unit being unable to drive said blade to rotate when said safety switch is not operated, said safety member comprising a first operation section and a second operation section set oppositely and corresponding to said first through hole and said second through hole respectively, and a retaining section connected between said first operation section and said second operation section;
• said rotating member is rotatable around said folding axis relative to said axle holder to drive said blade to rotate between a working position and a folded position relative to said working surface, said blade being relatively far away from said working surface when said blade is in said working position, said blade being relatively close to said working surface when said blade is in said folded position;
• during the rotation of said blade from said working position to said folded position, a rotation included angle generated between said blade and said working surface gradually decreases, and said safety member falls downward under the action of gravity and moves from a free position to an engaged position relative to said safety switch, said retaining portion being relatively far away from said safety switch so that said safety switch is operable when said safety member is in said free position, said retaining portion being relatively close to said safety switch and said safety switch is not operable when said safety member is in said engaged position.