FIELD: construction.
SUBSTANCE: proposed solution relates to the field of construction, in particular to inspection hatches providing access to concealed utilities. An inspection hatch comprising a rectangular frame with an upper and a lower receiving cup-guide for installing the door, a door, a hinge mechanism which rotates the door and a locking device of the door. Hinge mechanism is configured to adjust the vertical bolts of the frame, installed one in the upper hinge and the other in the lower hinge, wherein the central part of the bolts is connected by a threaded connection to the hinge, and the end part is a trunnion installed in the corresponding receiving cup-guide of the rectangular frame.
EFFECT: simplified adjustment of hatch door and reduced loads on hinge mechanism.
5 cl, 6 dwg
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