PROTECTIVE UNIT FOR FILLER NECK Russian patent published in 2003 - IPC

FIELD: space engineering; protection of inner surface of on-board detachable joint against dust and moisture. SUBSTANCE: proposed joint is made in form of base with bracket mounted on neck, rod, beaded bush, screw, sleeve and lever mounted on bracket. Rod is fitted in bracket for motion and engagement with object to be connected. Screw is spring-loaded relative to bush and bush is spring-loaded relative to base; bush is fitted inside base forming clearance between its bead and end face of base. One end of lever is engageable with rod and second end is kinematically linked with screw. Sleeve forming screw gear together with screw is mounted rotatably inside bush and cover is connected with sleeve. Spring force on screw exceeds that on bush and resistance force of screw gear in way of axial motion of screw. Rod is provided with limiter of its motion and free end of screw is provided with stop. EFFECT: enhanced efficiency of dust and moisture protection. 5 dwg