| 摘要 |
<p>The present invention provides a control handle for an excavation work vehicle, comprising a maneuvering valve for boom swivelling, a maneuvering valve for up-and-down boom rocking, a maneuvering valve for arm rocking, and a maneuvering valve for bucket pivoting, said maneuvering valves being disposed substantially in parallel and being interlockingly connected via four parallel interlocking systems employing push-pull rods to two maneuvering levers adapted for free rocking movement in both longitudinal and transverse directions relative to the machine body such that each lever is capable of actuating a pair of said maneuvering valves, simultaneously or separately, and an intermediate interlocking mode change-over mechanism for changing the mode of the interlocking between said two maneuvering levers and said four maneuvering valves.</p> |
