Lifting shaft for automobile

The invention provides a lifting shaft for an automobile. The lifting shaft for the automobile comprises a lifting shaft body, wherein the lifting shaft body comprises an I-shaped supporting shaft and two shaft fists, the two shaft fists are arranged at the two ends of the I-shaped supporting shaft, a main pin hole for connecting a steering knuckle is formed in each shaft fist, the cross section of the I-shaped supporting shaft is I-shaped, two bosses for mounting a connecting bracket assembly are arranged on an upper wing plate of the I-shaped supporting shaft, and two oil cylinder assembly bracket mounting holes for mounting an oil cylinder assembly bracket are formed in one side of an I-shaped supporting shaft web. The lifting shaft for the automobile has functions of assisting automobile wheels to lift and steer; furthermore, the integral supporting rigidity is large, and the bearing capacity is high; additionally, the lifting shaft can connect a steel plate spring assembly, a steering knuckle assembly, an oil cylinder assembly and a gas bag assembly into a whole body, so that the integral structure is more compact, which can make up the deficiency of automobile chassis assembly space limitation.