INSPECTION HATCH AND METHOD OF ITS INSTALLATION Russian patent published in 2018 - IPC E04F19/08 E06B3/34 

FIELD: construction.

SUBSTANCE: invention relates to the construction, in particular to the arrangement of inspection hatches in the inspection apertures under the bathroom for the performance of preventive and repair work on the drain pipes. Inspection hatch consists of an outer frame fixed to the walls of the technological opening, the plane of the manhole cover, a mechanism for fixing the hatch cover in the frame, that the technological opening in the partition is made along the length and width is not more than the length and width of the hatch cover plane, in the lower part of the inner surface of the manhole cover on the plane, the counterweight to the height is rigidly fixed, not more than half the cover of the hatch in length and width is not more than the width of the technological opening, as well as the technical result is achieved by the fact that the method of mounting the inspection hatch includes the installation on the walls of the aperture of the partition along the perimeter of the supporting frame in the form of a seat for interaction with the inner peripheral surface of the hatch cover, installation of the lower part of the manhole cover into the seat of the bearing frame, turning the upper part of the manhole cover in the vertical plane towards the opening, resting the lower part on the frame of the opening, until the upper part of the manhole cover interacts with the frame of the opening, installation on the outer surface of the hatch cover decorative tile flush with installed tiles on the surface of the pier by installing to the adhesive solution, characterized in that a counterweight is installed on the inner surface of the manhole cover in the form of a decorative tile by mounting on an adhesive solution, and the seat for the interaction of the manhole cover with the frame of the opening is made with a glue solution on the same plane as the tile on the surface of the partition is flush with the inner surface of the latter.

EFFECT: simplification of the design and method of its installation.

2 cl, 5 dwg