Container cover and vacuum preservation container
AssigneeThankhot Biotechnology Co., Ltd.
InventorHonghua WEI
Life of this patent
Estimating the term…
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.
Claims20
A container cover, comprising a cover body,
- wherein, a first through hole is provided at an upper surface of the cover body, the first through hole is provided with air extraction assembly,
- 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 at an upper surface of the inner cover,
- the second through hole is in communication with the first through hole,
- the second through hole is provided with a first one-way valve, and
- the third through hole is provided with a second one-way valve;
- the outer cover is made of elastic material and has an arch-shaped first top wall,
- the outer cover is arranged hermetically at an upper end of the inner cover,
- an air extraction cavity is enclosed between the outer cover and the inner cover,
- the first top wall constitutes a top wall of the air extraction cavity,
- the first through hole and the second through hole are located at a bottom of the air extraction cavity,
- an air flow direction of the first one-way valve is from outside of the air extraction cavity to inside of the air extraction cavity, and
- an air flow direction of the second one-way valve is from inside of the air extraction cavity to outside of the air extraction cavity.
A vacuum preservation container, comprising
- a body and a container cover arranged at an open end of the body,
- wherein,
- the container cover comprises a cover body, a first through hole is provided at an upper surface of the cover body,
- the first through hole is provided with air extraction assembly,
- 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 at an upper surface of the inner cover,
- the second through hole is in communication with a first through hole,
- the second through hole is provided with a first one-way valve,
- and the third through hole is provided with a second one-way valve;
- the outer cover is made of elastic material and has an arch-shaped first top wall,
- the outer cover is arranged at an upper end of the inner cover in a sealing manner,
- an air extraction cavity is enclosed between the outer cover and the inner cover,
- the first top wall constitutes a top wall of the air extraction cavity,
- the first through hole and the second through hole are located at a bottom of the air extraction cavity,
- an air flow direction of the first one-way valve is from inside of the body to inside of the air extraction cavity, and an air flow direction of the second one-way valve is from inside of the air extraction cavity to outside of the air extraction cavity.
Dependencies are inferred from the claim text.