Patent ID: 11564530

Abstract:
A two-end-through vacuum heat-insulated container outer tube sealing structure includes a vacuum heat-insulated container outer tube, where a shoulder part of the vacuum heat-insulated container outer tube is provided with a plane; a vacuum cavity is formed in the plane; a vacuum hole for vacuum pumping is formed in the vacuum cavity; the vacuum cavity is filled with a sealing material; a side surface of the plane of the shoulder part is provided with a circular step from top to bottom; a shielding cover is subjected to primary welding on the circular step; a weld bead of the welding is removed by polishing; the shielding cover and the circular step are in gap-free fit; the other end of the shielding cover is subjected to secondary welding with a mouth part of a bottle body; and the weld bead of the welding is removed by sanding the mouth.