FIELD: machine building.
SUBSTANCE: invention relates to machine building, particularly, to quick-release hatch designs, and can be used in shipbuilding. Hatch with quick-release cover includes cover (2), hold-down (3) and fastening device, wrench for installation. Hatch has a ledge in depth equal to the cover thickness, and on the lower platform it is equipped with at least one sealing ring (1.1). Cover in the centre has a through hole, around which on the inner surface there is a cup with a through hole in the bottom. Clamping device has at least two clamping surfaces and nut (3.4), which is conjugated with lower surface of clamping device, or central hole with thread and nut (3.4), which is conjugated with lower surface of clamping device. In the cap of the cover there is a fastening element in the form of bolt (4.1) so that the cap is in the cap of the cover, the bolt passes through the central hole of the clamping device and the nut of the clamping device.
EFFECT: invention provides reliability, tightness of safety and possibility of quick closing/opening of hatch.
9 cl, 13 dwg
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