Novel distribution box screw anti-falling mechanism

The utility model relates to the technical field of screws, and discloses a novel distribution box screw anti-falling mechanism which comprises a pentagonal shell, a sliding groove is formed in the outer surface of the pentagonal shell, a sliding block is connected into the sliding groove in a sliding mode, the lower end of the sliding block is an inclined face, and the upper end of the sliding block is fixedly connected with a ball. The surface of the ball is slidably connected with the interior of the sliding groove, limiting grooves are formed in the front side and the rear side of the interior of the sliding groove correspondingly, limiting blocks are slidably connected with the interiors of the two limiting grooves correspondingly, the surfaces of the limiting blocks are fixedly connected with the surface of the sliding block, first springs are fixedly connected with the lower surfaces of the limiting blocks, and a fixing device is arranged in the pentagonal shell. According to the novel anti-falling mec