High-temperature-resistant sealing ring

The utility model provides a high-temperature-resistant sealing ring which comprises a framework, a main sealing body is arranged on the framework, a main sealing lip is arranged on the main sealing body, a plurality of first protruding lip openings are formed in the main sealing lip, the cross section of each first lip opening is semicircular, a mounting groove is further formed in the main sealing body, and a tension spring is arranged in each mounting groove. The main sealing body is detachably provided with an auxiliary sealing body, the section of the auxiliary sealing body is in a Y shape, the auxiliary sealing body is provided with an auxiliary sealing lip, the auxiliary sealing lip is provided with a second protruding lip, the section of the second lip is in a sawtooth shape, and the auxiliary sealing body is further provided with a coating layer. The utility model has the advantage of good use effect. 本实用新型提供了一种耐高温密封圈，包括骨架，骨架上具有主密封体，主密封体上具有主密封唇，主密封唇上具有若干凸出的唇口一，唇口一的截面为半圆形，主密封体上还具有安装槽，安装槽内具有拉簧，主密封体上通过可