Single torsion rod turnover mechanism and automobile

The invention discloses a single torsion rod turnover mechanism and an automobile. The single torsion rod turnover mechanism comprises a first turnover supporting seat, a second turnover supporting seat, a shaft tube which is rotatably arranged on the first turnover supporting seat and the second turnover supporting seat, a first cab supporting seat fixed on the shaft tube, a second cab supportingseat fixed on the shaft tube, and a torsion rod spring penetrating through the shaft tube, wherein the first end of the torsion rod spring is in transmission connection with the shaft tube, and the second end of the torsion rod spring is a pre-torque applying end; the first end of the torsion rod spring, the first cab supporting seat, the second cab supporting seat and the second end of the torsion rod spring are sequentially distributed in the axial direction of the shaft tube; and the distance from the cab fixed point of the first cab supporting seat to the axis of the shaft tube is shorterthan that from the cab fixed point of the second cab supporting seat to the axis of the shaft tube. According to the adoption of the single torsion rod turnover mechanism, difference between force applied to the cab fixed point of the first cab supporting seat and the force applied to the cab fixed point of the second cab supporting seat is reduced, so that the force balance of the cab is improved, and the tilting degree of the cab is reduced.