Novel gate valve device

The invention discloses a novel gate valve device which comprises a gate valve device body. A valve center ring is arranged around the right side of the gate valve device body, a valve rod is connectedly arranged on the lower portion of an electric device, a support is arranged on the right side of the valve rod, a spacer ring is arranged on the lower portion of a filling device, a valve cover isarranged on the lower portion of a stud, a gasket is arranged on the left side of the valve cover and comprises an isolation sleeve and washers, the isolation sleeve is arranged on left and right sides of the inner side of the gasket, the washers are arranged on two sides in the isolation sleeve, and a hand wheel is arranged on the center connection upper portion of the valve center ring; the handwheel comprises an antiskid pad and a stay bar, the antiskid pad is arranged on the inner wall of the hand wheel, the stay bar is arranged at the inner-side connection center of the antiskid pad, a flashboard is arranged at t