A thermal insulation canister includes a canister body and a thermal insulation cover. The thermal insulation cover is covered on the canister body. The thermal insulation cover includes an upper cover body, a sealing ring, an adjusting frame and a trigger, the upper cover body is configured to protect an internal structure of the thermal insulation cover. The adjusting frame is rotatably connected to the trigger through the upper cover body. The sealing ring is provided between the upper cover body and the adjusting frame. The adjusting frame is driven by the rotating trigger to compress the sealing ring, which deforms to the side and abuts against the canister body, the sealing ring deforms to the side of the canister body and abuts against the canister body.

A thermal insulation canister includes a canister body and a thermal insulation cover. The thermal insulation cover is covered on the canister body. The thermal insulation cover includes an upper cover body, a sealing ring, an adjusting frame and a trigger, the upper cover body is configured to protect an internal structure of the thermal insulation cover. The adjusting frame is rotatably connected to the trigger through the upper cover body. The sealing ring is provided between the upper cover body and the adjusting frame. The adjusting frame is driven by the rotating trigger to compress the sealing ring, which deforms to the side and abuts against the canister body, the sealing ring deforms to the side of the canister body and abuts against the canister body.