Cross beam, binocular vision device and unmanned aerial vehicle thereof

The utility model relates to the technical field of camera shooting acquisition, in particular to a cross beam, a binocular vision device and an unmanned aerial vehicle, the cross beam comprises a cross beam body, and first mounting holes are formed in the two ends of the cross beam body respectively; and the included angle adjusting assembly comprises a piezoelectric stack, and the piezoelectric stack is installed on the cross beam body and used for deforming after being powered on so as to drive the cross beam body to act, so that the included angle between the axes of the two installation holes is adjusted, and the axes of the two installation holes are parallel. In the use process of the cross beam, if the cross beam body deforms, the piezoelectric stack of the included angle adjusting assembly can drive the cross beam body to act so as to adjust the included angle between the axes of the two mounting holes, so that the axes of the two mounting holes are parallel, and therefore, when lenses mounted in the