SUN YEH ELECTRICAL IND. CO., LTD. Patent applications |
Patent application number | Title | Published |
20160053913 | Electric Valve Actuator - An electric valve actuator, including a power output member having a first engagement section; a rod member fixedly disposed on the power output member; a first transmission member pivotally disposed on the power output member and having a second engagement section and a first worm gear section; a second transmission member pivotally disposed on the rod member and having a shaft body section and an eccentric shaft section; a third transmission member pivotally disposed on the eccentric shaft section and having a third engagement section, a lower section of the third engagement section being engaged with the first engagement section, an upper section being engaged with the second engagement section; a fourth transmission member fixedly disposed on the shaft body section and having a second worm gear section; a first worm engaged with the first worm gear section; and a second worm engaged with the second worm gear section. | 02-25-2016 |
20120135833 | ELECTRICAL DRIVE APPARATUS FOR VALVES - An electrical drive apparatus for valves includes: a main body having an internal first receiving space in which a transmission unit is received; a drive unit disposed on one side of the main body for driving the transmission unit to rotate; a hand wheel fixed with a top section of the transmission unit, a lower section of the hand wheel being formed with several sockets; and a switch unit for controlling whether the hand wheel and the first transmission shaft can be rotated so as to switch the electrical drive apparatus between an electrical drive operation mode and a manual drive operation mode. | 05-31-2012 |