Manual actuating mechanism for multiway valve - has lever with handle lockable to fixed structure to prevent operation

摘要

The actuating mechanism for a multi-way valve has a handle (24) supported on a lever (15) and selectively lockable to fixed structure (19) to prevent operation of the lever. The handle is a rod having a hand knob at one end supported for axial and rotary motion in a bearing (18) on the lever. In the locked position of the handle, the other end of the rod engages a hole (23) in the fixed structure. Rotation of the knob about the rod axis releases a latch (33) and allows the rod to withdraw axially, under pressure of a spring (28), from the hole to free the lever for angular movement about its pivot axis.