A protection helmet, comprising: - a body made of a rigid material, said body being provided with a shaped front edge; - a visor provided with an upper edge; - a pair of handling devices anchored to said body and designed to promote the movement of said visor between a lowered position, wherein the upper edge thereof is substantially positioned in proximity to said front edge of said body, and a lifted position, wherein said upper edge is positioned above said front edge and facing the back portion of said body; wherein each handling device comprises: - a first connection member connected to the visor; - a first movable pin associated with said first connection member; - a first shaped seat designed to house said first movable pin in a sliding manner; - a fixed pivot operatively connected to said first connection member; - a second connection member distinct from said first connection member and having ends (26, 27) respectively hinged to said first connection member and to said fixed pivot; the protection helmet being characterized in that each handling device further comprises: - a second movable pin placed in proximity to the hinge point between said first connection member and said second connection member, said second movable pin being movable along a substantially arch-like shaped path during the movement of said visor between said lowered position and said lifted position; said substantially arch-like shaped path Z extending below said fixed pivot. - a body made of a rigid material, said body being provided with a shaped front edge; - a visor provided with an upper edge; - a pair of handling devices anchored to said body and designed to promote the movement of said visor between a lowered position, wherein the upper edge thereof is substantially positioned in proximity to said front edge of said body, and a lifted position, wherein said upper edge is positioned above said front edge and facing the back portion of said body; wherein each handling device comprises: - a first connection member connected to the visor; - a first movable pin associated with said first connection member; - a first shaped seat designed to house said first movable pin in a sliding manner; - a fixed pivot operatively connected to said first connection member; - a second connection member distinct from said first connection member and having ends (26, 27) respectively hinged to said first connection member and to said fixed pivot; the protection helmet being characterized in that each handling device further comprises: - a second movable pin placed in proximity to the hinge point between said first connection member and said second connection member, said second movable pin being movable along a substantially arch-like shaped path during the movement of said visor between said lowered position and said lifted position; - a first connection member connected to the visor; - a first movable pin associated with said first connection member; - a first shaped seat designed to house said first movable pin in a sliding manner; - a fixed pivot operatively connected to said first connection member; - a second connection member distinct from said first connection member and having ends (26, 27) respectively hinged to said first connection member and to said fixed pivot; the protection helmet being characterized in that each handling device further comprises: - a second movable pin placed in proximity to the hinge point between said first connection member and said second connection member, said second movable pin being movable along a substantially arch-like shaped path during the movement of said visor between said lowered position and said lifted position; - a second movable pin placed in proximity to the hinge point between said first connection member and said second connection member, said second movable pin being movable along a substantially arch-like shaped path during the movement of said visor between said lowered position and said lifted position; said substantially arch-like shaped path Z extending below said fixed pivot.