Connector sealing anti-falling rubber sealing ring for AGR pipeline

The utility model belongs to the technical field of sealing rings, and particularly relates to an AGR pipeline connector sealing anti-disengaging rubber sealing ring which comprises a sealing plug body and a heat-resisting layer, a clamping groove is formed in the side of the sealing plug body, a sliding groove is formed in the side of the clamping groove, a fixing block is fixed to the inner side of the sliding groove, one side of the fixing block is connected with a first reset spring, and the other side of the fixing block is connected with a second reset spring. The sealing plug body is arranged on the outer side of the heat-resisting layer, the inner side of the heat-resisting layer is connected with a hollow layer, a supporting pipe is fixed to the inner side of the hollow layer, a reinforcing pipe is arranged on the inner side of the hollow layer, and a second reset spring is installed on the inner side of the reinforcing pipe. The side of the second reset spring is connected with a threaded connecting