Automatic adjusting type two-way composite sealing structure of butterfly valve

The utility model discloses an automatic adjusting type two-way composite sealing structure of a butterfly valve, which belongs to the field of butterfly valve sealing and comprises an end cover and a valve body, the end cover is fixedly mounted at the bottom end of the valve body, a short valve shaft is arranged at the bottom of an inner cavity of the valve body, a valve shaft is arranged at the top of the inner cavity of the valve body, and a limiting mechanism is arranged on one side of the valve body. A butterfly plate pin is arranged in the valve body, one end of the short valve shaft is fixedly connected with a butterfly plate through the butterfly plate pin, the outer portion of the butterfly plate is movably sleeved with a sealing ring, and a valve body sealing seat is arranged in the valve body. According to the automatic adjusting type two-way composite sealing structure of the butterfly valve, the main sealing structure of the butterfly valve is arranged to be in an adjustable reliable two-way seal