Abstract: Disclosed are a container cover and a vacuum preservation container. The container cover comprises a cover body and an air extraction assembly, wherein a first through hole is provided in the cover body, the air extraction assembly comprises an outer cover and an inner cover, the inner cover is arranged on an upper end of the first through hole in a sealing manner, a second through hole and a third through hole are provided in the inner cover, the second through hole is in communication with the first through hole, a first one-way valve is arranged in the second through hole, and a second one-way valve is arranged in the third through hole.

Abstract: A vacuum canister includes a canister body and a cover body, wherein the cover body has a cover seat with an opening facing upwards, a through rod is disposed on a bottom wall of the cover seat, a valve seat is disposed at a lower opening end of the through rod, and a check valve is disposed on the valve seat. The cover seat is provided with an air extracting device including an inner barrel and an outer barrel. An opening end of the outer barrel is sleeved on the inner barrel. A through hole is axially opened in the inner barrel. The through rod passes through the through hole. The air extracting device includes a pressing handle sleeved on the outer barrel, wherein a lower end of the pressing handle abuts the push block. A limiting block is disposed on an outer circumferential wall of the pressing handle.

Abstract: Disclosed are a container cover and a vacuum preservation container. The container cover comprises a cover body and an air extraction assembly, wherein a first through hole is provided in the cover body, the air extraction assembly comprises an outer cover and an inner cover, the inner cover is arranged on an upper end of the first through hole in a sealing manner, a second through hole and a third through hole are provided in the inner cover, the second through hole is in communication with the first through hole, a first one-way valve is arranged in the second through hole, and a second one-way valve is arranged in the third through hole.

Abstract: A vacuum canister includes a canister body and a cover body, wherein the cover body has a cover seat with an opening facing upwards, a through rod is disposed on a bottom wall of the cover seat, a valve seat is disposed at a lower opening end of the through rod, and a check valve is disposed on the valve seat. The cover seat is provided with an air extracting device including an inner barrel and an outer barrel. An opening end of the outer barrel is sleeved on the inner barrel. A through hole is axially opened in the inner barrel. The through rod passes through the through hole. The air extracting device includes a pressing handle sleeved on the outer barrel, wherein a lower end of the pressing handle abuts the push block. A limiting block is disposed on an outer circumferential wall of the pressing handle.