Rapid power supply switching device

The utility model discloses a rapid power supply switching device, which comprises a limiting mechanism, a conductive block arranged in a switching box, the conductive block is provided with the limiting mechanism, a pressing plate, a push rod and a spring, the conductive block is provided with a threading groove, the pressing plate is positioned in the threading groove, one end of the push rod is fixedly connected with the pressing plate, and the other end of the push rod is fixedly connected with the spring. Through grooves are symmetrically formed in the top end of the inner wall of the transfer box, the push rods are connected with the through grooves in a sliding and penetrating mode, the outer walls of the push rods are connected with rotating rings in a threaded and penetrating mode, the springs are fixedly connected with the top ends of the inner walls of the threading grooves, and the other ends of the springs are fixedly connected with the pressing plates. According to the utility model, through mut