CONNECTION DEVICE Russian patent published in 2003 - IPC

FIELD: machine engineering, namely devices for connecting-disconnecting. SUBSTANCE: connection device includes female and male parts having on their surfaces turned one to another matched annular recesses; ring of material with shape memory effect mounted in annular recess of male part and made with possibility of decreasing its diameter. Ring made of material with shape memory effect is slit one. Locking slit elastic ring is mounted coaxially inside ring of material with shape memory effect at initial radial pressure acting upon the last. Inner diameter of locking slit elastic ring is more than that of inner lateral surface of female part or it is equal to that. In annular recess of male part additional slit ring is placed; it is made of material with shape memory effect with possibility of increasing its diameter, has temperature of restoring its shape and rigidity values higher than those values of ring of material with shape memory effect placed in annular recess of female part. Outer diameter of additional slit ring made of material with shape memory effect is less than that of outer lateral surface of male part. EFFECT: possibility for providing multiple connection-disconnection of two parts without access to their butt, elimination of additional apparatuses for connecting-disconnecting parts. 2 cl, 6 dwg