Leakproofness gate valve

The utility model relates to the technical field of valves, especially, relate to a leakproofness gate valve, including valve body, valve gap, flashboard, valve rod, valve -stem?nut, pressure cap and hand wheel, be provided with the flashboard in the valve body, the inner wall upper end fixedly connected with valve -stem?nut of flashboard, the valve gap respectively with the valve body with cap fixed connection presses, the one end of valve rod and hand wheel fixed connection, the other end link up in proper order press cap, valve gap and stretch into the valve body in, be connected with the flashboard through valve -stem?nut, press the inside of cap setting on the valve gap top. The utility model discloses a leakproofness gate valve, this leakproofness gate valve set up in the inside on valve gap top, and be sealed effectual, be difficult to moreover destroyed and steal, and the simple structure of this gate valve moreover, the practicality is strong, and application scope is wide. 本实用新型涉及阀门技术领域，尤其涉及种密封性闸阀，包