| 摘要 |
PURPOSE:To make a manual valve temporarily into an automatic valve in such a way that the device is put on a valve handle, and the device is fixed to or dismounted from the valve handle by means of forward or reverse revolution of motors. CONSTITUTION:When the device is put on a valve handle 1, and a motor 19 is switched on, the valve handle 1 and the device are fixed to each other, and then when a motor 12 is swithced on, the valve handle 1 can be turned. When a torque limiter 25 works, and the valve handle 1 comes to no turning, then the motor 12 is switched off, and the motor 19 is turned in the reverse direction against the former so as to sparate the valve handle 1 from the device. In other words, except in case where the device is put on the vlve handle 1, all what is to be done is a remote switch control, and a manual valve can be temporarily made into an automatic valve. |
