FIELD: construction.
SUBSTANCE: invention relates to the lockable inspection hatch for the full-assembly construction. Inspection hatch comprises a plate provided with channels and opening, and comprises a cover, provided with channels and intended for closing the opening. A plate comprises the edge, limiting the opening, and cover, having the cover edge. Channels provided in the plate and cover, are arranged so that they are located far from the edge of the opening and from the edge of the cover, and arranged in the raster. Raster comprises the lines of grid, in the point of intersection of which the channels are situated. The lines of grid attributed to the opening edge and cover edge, don't have channels.
EFFECT: invention makes it possible to increase the operating reliability and efficiency of the inspection hatch.
9 cl, 2 dwg
