Thermal insulation canister

A thermal insulation canister, comprising:

• a canister body (1a) and a thermal insulation cover (1),
• wherein the thermal insulation cover (1) is configured to cover the canister body (1a);
• the thermal insulation cover (1) comprises an upper cover body (3), a sealing ring (4), an adjusting frame (5) and a trigger (7), the upper cover body (3) is configured to protect an inner structure of the thermal insulation cover (1);
• the adjusting frame (5) is configured to pass through the upper cover body (3) and is rotatably connected to the trigger (7);
• the sealing ring (4) is located between the upper cover body (3) and the adjusting frame (5);
• when the trigger (7) is turned to drive the adjusting frame (5) to move, then to compress the sealing ring (4), the sealing ring (4) deforms toward a side of the canister body (1a), and is in contact with the side of the canister body (1a),
• wherein the thermal insulation cover (1) further comprises an inner cover body (6), a lower end surface of the inner cover body (6) is provided with a sealing gasket (61), the sealing gasket (61) comprises an arc-shaped outer side, a plurality of reinforcing edges (62) are disposed on a lower end surface (6) of the inner cover body (6), and the plurality of reinforcing edges (62) are configured to increase strength of the inner cover body (6).