Pedal, chassis and operation machine

The utility model relates to the technical field of operation machinery pedal plate design, in particular to a pedal plate, a chassis and an operation machinery, the pedal plate comprises a base plate which is provided with a rotating hole and an arc-shaped track which is arranged by taking the rotating hole as a circle center; a first-layer pedal; the first end of the connecting plate is rotationally connected with the base plate, and the second end of the connecting plate is connected with the first-layer pedal; the first connecting part and the second connecting part are both connected with the connecting plate, the first connecting part is rotatably connected into the rotating hole, and the second connecting part is slidably connected into the arc-shaped rail. The pedal is convenient for a person to go up and down for use, meanwhile, the first-layer pedal can be driven to rotate around the base plate by rotating the connecting plate according to needs, so that the space below the first-layer pedal is vaca