High-temperature-resistant intake and exhaust valve for vehicle

The utility model provides a high-temperature-resistant intake and exhaust valve for a vehicle, which comprises a valve body component, a valve body ring, a valve rod, a valve rod, a valve rod, a valve rod, a valve rod and a valve rod, and is characterized in that the valve body ring is fixedly connected with an intake/exhaust pipe; the upper rotating shaft is arranged in the valve body column; the lower shaft system assembly is arranged on the inner side of the valve body ring and symmetrically arranged on the two sides of the circle center of the valve body ring with the upper rotating shaft; the stabilizing assembly is arranged on the upper rotating shaft in a sleeving mode and used for providing axial supporting and radial supporting so that the upper rotating shaft can be kept stable; the valve plate is fixed in the valve body ring through an upper rotating shaft and a lower shaft system assembly; the limiting mechanism comprises a limiting disc which is nested at one end of the valve body column; one en