Maintenance room protection device

The utility model relates to the technical field of maintenance protection, in particular to a maintenance room protection device which comprises a base, two symmetrically-arranged measuring mechanisms are welded to the two ends of the front side of the upper surface of the base, supporting columns are welded to the middle positions of the front end and the rear end of the upper surface of the base, and a supporting cross beam is welded to the upper end between the supporting columns. A plurality of air cylinders are fixedly installed on the lower surface of the supporting cross beam, hooks are welded to the tail ends of the air cylinders, and a box-type transformer is placed on the upper surface of the base. In the process of separating the upper cover of the transformer, the upper cover of the transformer is firstly fixed through the rope, then the upper cover of the transformer is directly hung and stretched through the hook, the hook is pushed to the position close to the transformer through the air cylin