Convenient to detach's observation window for civil air defense engineering

The utility model discloses a convenient to detach's observation window for civil air defense engineering, including the mount, the bottom of mount is provided with the second cavity, be provided withspiral shell rasp bar in the second cavity, spiral shell rasp bar's both ends are rotated with the both sides of second cavity inner wall and are connected, spiral shell rasp bar goes up symmetricalthreaded connection has two movable blocks, the reverse setting of screw thread at spiral shell rasp bar both ends, the both sides of mount all are provided with first cavity, the interior bottom of first cavity is provided with the second opening that feeds through with the second cavity, the pillar of the vertical setting of top fixedly connected with of movable block, the pillar runs through the second opening and to extending in the first cavity. The utility model discloses a setting up steelframe and mount, fixing the mount with the concrete and treating installation department, meettingunder emergency escape's th