Electric box convenient to open and maintain

The utility model relates to an electric box convenient to open and maintain. The electric box comprises a rack, an electric box main body, a movable mounting rack and an automatic door opening assembly. One side of the electric box main body is hinged with the rack; the movable installation frame is installed on the electric box body and used for controlling opening and closing of the electric box body and the rack. The insulating plate is mounted on the outer side of the electric box main body; the automatic door opening assembly comprises a front-end support, a rear-end support and a buffer gas spring, the front-end support is installed on the inner side of the electric box body and is concentrically installed with one end of the buffer gas spring through a nut, and the rear-end support is installed on the rack and is concentrically installed with the other end of the buffer gas spring through a nut. And the insulating plate is arranged on the outer side of the electric box main body, so that the safety ca