Bidirectional friction-free hard sealed elastic valve seat ball valve

The utility model relates to a bidirectional hard sealed elastic valve seat ball valve without friction, which is composed of a valve body, a valve cover and a control end, wherein, an elastic valve seat, a through hole ball body, a joint bearing and a bearing seat are arranged in the valve body, and the control end comprises a supporting sleeve in the valve cover, a valve rod, a soft sealed assembly, a bearing, a supporting block, a handwheel arranged on the end part of the supporting block, a gland bush and fastening bolts. The outer side of the supporting sleeve is provided with two L-shaped slide ways which can slide after embedded with a positioning screw on the valve cover, the upper end of the supporting sleeve is provided with a spring lock matched with a groove at the lower side of the valve rod, the inner side of the lower end of the supporting sleeve is provided with two cylindrical sliding shafts contacted with inclined columns at the upper part of the ball body, and the lower end of the valve rod is connected with the upper part of the supporting sleeve by a threaded buckle. The elastic valve seat is welded with a long tube from the inner side of a valve seat body, and the valve seat body is provided with an inner side slot and an outer side slot. The utility model has characteristics of compact structure, good tightness, no accumulated media, no gas expansion pressure, fire prevention, safety, portability for opening and closing, double flow direction, high temperature and high pressure resistance, etc.