Sealing stopper for heat-tube radiator

The utility model relates to a sealing stopper for a heat-tube radiator which comprises a base plate capable of superposition on an object to be radiated and a plurality of radiation fins for radiating heat and arranged at the exterior of the base plate, wherein both ends of the center through hole of the base plate in a heat pipe structure is provided with jacks in a larger orifice diameter, and angular ends are formed among the through hole and the jacks. The jacks are closed in the way of tight fit extrusion by embolisms. The outer margin of the embolism is provided with a ring groove to form a decompression zone for containing the gas and the soft flocks in the extrusion process. When the plugging end of the embolism is extruded to the angular end, the angular end deforms because of extrusion under stress. The utility model can prevent the enclosed space formed by the through hole from being destroyed.