High-altitude operation device and leveling mechanism and high-altitude operation car of high-altitude operation device

The utility model provides a high-altitude operation device and a leveling mechanism and a high-altitude operation car of the high-altitude operation device. The leveling mechanism comprises a rotary table, an arm support, a fluctuating oil cylinder, a work platform, a first connecting rod, a second connecting rod, a first double-rod oil cylinder and a second double-rod oil cylinder. A parallelogram is formed by a hinged point A of the rotary table with the arm support, a hinged point B of the first connecting rod with the rotary table, a hinged point C of the first connecting rod with the second connecting rod and a hinged point D of the second connecting rod with the arm support; a cylinder body of the first double-rod oil cylinder is hinged with the arm support; a hinged point E is arranged on the cylinder body hinged with the arm support; a piston rod of the first double-rod oil cylinder is hinged to the hinged point C; a triangle DEC is formed by the hinged points D, E and C; a triangle D'E'C' is formed by a hinged point D' of the arm support with the work platform, a hinged point E' of the second double-rod oil cylinder with the arm support and a hinged point C' of the second double-rod oil cylinder with the work platform; the triangle DEC is identically equal to the triangle D'E'C'; an edge ED is equal to an edge E'D'; an edge DC is parallel and equal to an edge D'C'; and an edge EC is parallel and equal to an edge E'C'.