Multistage voltage change-over switch device

The invention discloses a multistage voltage change-over switch device which comprises an insulating cylinder, an organic glass base is fixed to the bottom of the insulating cylinder, an upper baffleis arranged in the insulating cylinder, a lower baffle is arranged in the insulating cylinder, and the upper baffle and the lower baffle are jointly and rotationally connected with an insulating rod.Rubber sleeves are arranged at the joints of the upper baffle and the insulating rod and the joints of the lower baffle and the insulating rod, a first conductive shaft is connected to the top of theinsulating rod and penetrates through the insulating cylinder, a short conductive rod is welded and fixed to the end, located in the insulating cylinder, of the first conductive shaft, and a second conductive shaft is connected to the bottom of the insulating rod. A straight rod is welded and fixed to the end, located in the organic glass base, of the second conductive shaft, and the straight rodis connected with a long con