Leak-proof fastening device and assembly method thereof
A fastening device, leak-proof technology, applied in the field of aeronautics, can solve the problems of increasing the time and cost of installing fasteners, difficult tasks, etc.
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[0088] Figure 1A A cross-sectional view of an assembly according to one embodiment of the invention is shown. The assembly 10 comprises a washer 11 assembled to a fastening nut 12 .
[0089] The gasket 11 comprises an annular base 15 and a surrounding substantially cylindrical skirt 13 arranged along an axis 14 on the outer periphery of the annular base 15 .
[0090] The skirt 13 and the annular base 15 form a cavity in which the collar 16 of the fastening nut 12 is housed. The collar 16 has a substantially cylindrical shape surrounding the axis 14 . The collar 16 extends axially through a substantially frustoconical portion 17 , the diameter of which decreases the farther it is from the collar 16 along the axis 14 .
[0091] The annular base 15 has a circular aperture 18 arranged along the axis 14 . Likewise, the fastening nut 12 passes axially through the threaded hole 19 . At the collar 16 a threaded bore 19 is axially extended by a counterbore 20 having a larger diame...
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