Chassis truck of voltage transformer handcart

The utility model discloses a chassis truck of a voltage transformer handcart. The chassis truck comprises a handle, a first transmission device and a first switch, wherein the first transmission device is connected with the handle; the first switch is connected with the first transmission device, so that the switch-on/off of the first switch is controlled; the first switch is provided with a plurality of auxiliary contacts; the handle rotates to drive the first transmission device to move; the first transmission device is connected with the first switch; the first transmission device moves to drive the first switch to move, so that the first switch is switched on/off for controlling the auxiliary contacts on the first switch to be switched on/off; the auxiliary contacts of the first switch are connected with secondary windings on a voltage transformer respectively; and when all auxiliary contacts on the first switch are switched on simultaneously, all secondary windings on the voltage transformer are switche