FIELD: manufacturing technology.
SUBSTANCE: sealing device contains plug, made with possibility of arrangement in housing threaded hole and removal from it by screwing in and unscrewing. Plug comprises central body with thread, and locking and disengagement device, preventing spontaneous unscrewing of plug, automatically actuated by plug rotation and its corresponding displacement along longitudinal axis. Locking and disengagement device includes two detachable connecting elements, first of which in rotation is engaged with central body, and second is made with possibility of its rotation relative to housing locking. Plug comprises skirt, rigidly connected with central body and having support area, made with possibility of interacting directly with second element support area. First element is engaged with central body with possibility of their combined rotation by means of guiding devices, made on first element periphery and extending in radial direction relative to longitudinal axis. Guiding devices enter corresponding grooves, made inside skirt and extending along longitudinal axis, providing possibility of first element movement inside skirt along longitudinal axis.
EFFECT: invention enables eliminate plug unscrewing from housing under influence of aircraft engine vibrations.
18 cl, 5 dwg
