Prevent falling electric actuator box of lacquer

The utility model relates to a prevent falling electric actuator box of lacquer. Including the box body, be equipped with a plurality of screw counter sinks around the junction of the lower extreme of box body, be equipped with a plurality of archs on the step face of screw counter sink, a plurality of protruding evenly distributed are around the screw counter sink. The utility model discloses simple structure through addding a plurality of archs on the step face at box screwing counter sink, reduces the area of contact of screw and box, need not add spring washer when the assembly, and the arch just can play locking effect, when needing to dismantle the screw behind the box surface paint, because the screw is not the dead contact with the box, the screw can not drive paint on every side, has reduced the possibility that paint peeled off, has guaranteed whole outward appearance effect.