Lift apparatus (10) comprising:at least an anchor assembly (11) fixable to the frame of a vehicle；a platform (12) suitable to support a wheelchair；at least a support assembly (13) mechanically connected to said platform (12)；two arms (14), each connected to said support assembly (13) to support said platform (12)； said arms (14) being rotatably connected to said anchor assembly (11) to rotate with respect to the latter, between a rest configuration and an operating configuration；characterized in that said platform (12) comprises two parts (121, 122), of which, each has a support surface (121a, 122a) for a wheelchair, a back (121b, 122b) opposite said support surface (121a, 122a) and a lateral edge (121c, 122c) along which said parts (121, 122) are mutually hinged to rotate mutually between a close configuration, in which the backs (121b, 122b) of said parts (121, 122)) are facing, and an open configuration in which the support surfaces (121a, 122a) of said parts (121, 122) are substantially coplanar to define a support plane for a wheelchair； said lift apparatus (10) comprising actuating means to mutually rotate the parts (121, 122) of said platform (12) from said close configuration to said open configuration and vice versa； said support assembly (13) comprising, for each arm (14) of said arms (14):a connecting element (131), pivoted to said arm (14)；a first connecting rod element (132) pivoted to said connecting element (131) and to a first of said parts (121, 122)；a second connecting rod element (133) pivoted to said connecting element (131) and to the second of said parts (121, 122).
