JUNCTION UNIT FOR SECTIONS WITH REMOVABLE FLANGES Russian patent published in 2021 - IPC B64C1/00 F42B15/36 B64G1/64 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aviation and rocket technology, primarily to aircraft junction units. The junction unit for sections with removable flanges, including pins, nuts, flanges of the connected sections, wherein the flange of one of the sections is made removable. The flange of the other compartment is also made removable. Protrusions distributed in diameter are therein made on the flanges, matching with profiled cuts made on the sections, ensuring fixation of the flanges in the longitudinal direction during installation and rotation thereof at the estimated angle. The flanges are blocked from rotation around the longitudinal axis by means of retainers installed through the walls of the sections in the holes made on the flanges.

EFFECT: provides reliable fixation of the flanges regardless of the operating temperature, allows installation of blocks with overall dimensions larger than the inner diameter of the flanges in any of the sections, increasing the filling coefficient of the product in general and ensuring that the sections are blocked from mutual rotation under conditions of vibration loading.

1 cl, 9 dwg