Plug-in coupling for stop valve - has shaft with eccentric boss on end fitting in mating drillings

摘要

The plug-in coupling is esp. for torque transmission to the plug of a stop valve. A shaft (7) has at its end for coupling to the plug (2) a boss (6) eccentric to its axis. A drilling (4) in the plug accommodates the shaft end and has formed in its base a further eccentric drilling (5), into which the boss fits. There can be a peripheral groove in the shaft near its end, fitting inside the plug drilling and accommodating a sealing and/or locking ring.