| 摘要 |
PURPOSE: A pot lid with vacuum ability and a pot thereof are provided to form a concave groove along the circumference of a ring-shaped rim protruded downward between the front and the rear end side of the packing body, thereby securely maintaining the lift function of packing wings by preventing the packing wings from sticking to the packing body. CONSTITUTION: A pot lid with vacuum ability comprises a lid body, a check valve(330), a mounting groove(350), and a packing(370). The check valve is mounted on a mounting hole(311) formed on the lid body. The mounting groove is formed on the edge of the lid body. The packing is mounted on the mounting groove. The packing with a ring shape comprises a packing body(371) and a packing wing(373) supported by the rear end to be lifted up and down corresponding to the packing body. The mounting groove comprises an upward bending part(351) bent upwards from the rim of the lid, an outside horizontal bending part(353) bent horizontally to the outside from the upper direction bending part and a downward bending part(355) bent downwards from the outside horizontal bending part. The inner surface of the downward bending part is formed with a hanging protrusion(356) hanged by the front end side of the lower surface of the packing body. The hanging protrusion is formed by the pressurization from the outer side between the upper and lower ends the downward bending part to the inner side. |
