Maintenance bypass switch locking device for EPS emergency power supply

The utility model discloses a maintenance bypass switch locking device for an EPS emergency power supply, and relates to the technical field of electric appliance installation. The utility model discloses a maintenance bypass switch locking device for an EPS emergency power supply. The bypass switch comprises a mounting body, a substrate and a maintenance bypass switch body, a third sliding grooveis formed in the mounting body; a lifting sliding block is slidably mounted in the third sliding groove. The number of the lifting sliding blocks is two. A two-way threaded rod is rotationally mounted in the third sliding groove; the lifting slide block is in threaded connection with the bidirectional threaded rod; limiting locking plates are fixedly connected to the outer surfaces of the front sides of the lifting sliding blocks; the base plate is located on the outer surface of the front side of the mounting body, a back groove is formed in the rear side of the base plate, limiting groovesare formed in the top and