Valve element sealing structure of hydrogen fuel cell cooling liquid regulating valve

The utility model relates to a valve core sealing structure of a hydrogen fuel cell cooling liquid regulating valve, which comprises a shell, and the shell is provided with a pipe joint, a rotary sealing device and a valve core from outside to inside; the pipe connector is fixedly connected with the shell through a screw, a spring is arranged between the pipe connector and the rotary sealing device, and the valve element rotates in the rotary sealing device. The rotary sealing device comprises a rubber pad base, a rubber soft pad and a polytetrafluoroethylene sheet, the polytetrafluoroethylene sheet is installed on the rubber soft pad, runner holes are formed in the centers of the polytetrafluoroethylene sheet and the rubber soft pad, and the rubber soft pad is fixed in the rubber pad base. The device is simple in structure and small in occupied space; and a layer of polytetrafluoroethylene material with a certain thickness is adhered to the cambered surface of the rubber combined pad matched with the valve c