Double-hard-sealing sleeve type regulating valve with flexible structure

The utility model belongs to a pressure balance type sealing structure for valves, in particular to a double-hard-sealing sleeve type regulating valve with a flexible structure. The double-hard-sealing sleeve type regulating valve comprises a valve body. A valve seat is arranged in the valve body. A flexible double-hard-sealing valve core component is arranged on the valve seat. A sleeve is fixed on the flexible double-hard-sealing valve core component. The valve body is fixedly connected with a valve deck through a middle flange bolt. A valve rod penetrates through a middle through hole of the valve deck and is connected with the flexible double-hard-sealing valve core component. The double-hard-sealing sleeve type regulating valve with the flexible structure has the advantages that the valve core structure enables the valve to simultaneously meet various complex required combined action working conditions of big caliber, high temperature, high pressure, high differential pressure, high reliability and the like, and can achieve low leakage rate.