| 摘要 |
locking of objects needing sealing. SUBSTANCE: in two variants of invention lateral surface of inner cavity of housing is cone along its whole length. In two other variants of invention inner cone surface has insert. Two variants of making holder are offered. In both variants holder includes two circular flat discs of different diameter rigidly joined one with another by means of three pairs of rigid rods in such a way that two flat circular discs are mutually spaced by length of inner cone cavity of housing or insert. Holder may be in the form of truncated cone having through lengthwise slits for placing in each slit spring-loaded fixing member. In all variants of invention device has sliding bearing in the form of fluoroplast washer. EFFECT: enhanced reliability of locking, easiness in operation, simplified manufacture. 10 cl, 5 dwg |
