Thermal container

A thermal container, comprising a cover, a main body, an opening-closing assembly, and a sealing ring;

• the main body being formed with a storage space;
• the opening-closing assembly including an upper connecting member and a lower connecting member, the upper connecting member being hermetically connected to the cover, the lower connecting member being hermetically connected to an opening of the storage space;
• rear ends of the upper connecting member and the lower connecting member being pivotally connected together, front ends of the upper connecting member and the lower connecting member being provided with a locking mechanism;
• the lower connecting member being formed with a through hole communicating with the storage space, the upper connecting member being provided with a protruding portion matching the through hole, the sealing ring being hermetically fitted between the through hole and the protruding portion;
• wherein the cover includes a first outer layer, a first interlayer and a first inner layer that are stacked in sequence, the upper connecting member is provided with a hollow structure passing through upper and lower surfaces of the upper connecting member, the first interlayer is fitted in the hollow structure, the first outer layer and the first inner layer are hermetically connected to the upper surface and the lower surface of the upper connecting member, respectively;
• the main body includes a second outer layer, a second interlayer and a second inner layer that are stacked in sequence, a lower surface of the lower connecting member is formed with an annular mounting groove, an upper end of the second interlayer is fitted in the mounting groove, the second outer layer and the second inner layer are attached to an outer side and an inner side of the second interlayer respectively, and upper ends of the second outer layer and the second inner layer are hermetically connected to an outer side and an inner side of the mounting groove, respectively.