Befestigung für thermische Sonde

摘要

The twist lock comprises an annular shoulder on the structural member between the fluid medium chamber and the socket having an inside diameter and a circumferential array of a number of notches open through the inside diameter. A number of radial legs on the shell each having a hook and arranged in an angular array around the shell corresponding to the circumferential array of notches in the annular shoulder so that an unlocked position of the shell relative to the socket is defined by angular registry between the circumferential array of notches and the angular array of radial legs. A unit on the socket and on the shell is operative to limit penetration of the shell into the socket such that in the unlocked position of the shell the hooks are disposed in the fluid medium chamber closely adjacent the plane of a planar surface of the annular shoulder. When the shell is manually rotated in the socket from the unlocked position to a locked position the planar surface captures the hooks and prevents dislodgement of the shell from the socket. A cam and lug unit on the shell and on the socket affords tactile representation of the progress of the shell toward the locked position and of achievement of the locked position during manual rotation of the socket from the unlocked to the locked position and retaining the shell in the locked position.