| 摘要 |
<p>A manual controller of a hydraulic manipulator for opening and closing a valve is provided to control the flow rate of fluid flowing in a pipe easily by opening and closing a valve manually even in case electric power is not supplied. A manual controller(1000) of a hydraulic manipulator for a valve comprises: a first pump port(1160-1) connected in the discharge side of a hand pump; a second pump port(1160-2) connected in the suction side of the hand pump; a first supply port(1190-1) connected in the first pump port for the supply of working fluid; a second supply port(1190-2) connected in the second pump port for the supply of the working fluid; a first manipulator port(1110-1) and a second manipulator port connected in a hydraulic manipulator; a first direction port(1140-1) connected in the first manipulator port; a second port(1140-2) connected in the second manipulator port; and a solenoid valve(1150) changing the flow path of the working fluid.</p> |
