Electric pressure cooker with air extraction function

Abstract

The invention relates to the technical field of a pressure cooker and discloses an electric pressure cooker with an air extraction function. The electric pressure cooker comprises a cooker body, a cooker cover, an external pot and an internal pot, wherein the cooker cover comprises an internal cover and an external cover; a flanged edge extends outward from the upper edge of the internal pot; a circle of folded edge extends outward from the external edge of the flanged edge; an internal seal ring and an external seal ring are arranged between the internal cover and the internal pot; the internal side of the lower part of the external seal ring is attached to the external side of the folded edge of the internal pot; the upper part of the external seal ring is attached to the internal side of the internal cover; the internal cover is connected with a hose; one end of the hose is communicated to the internal side of the internal cover; a mini-type vacuum pump is arranged inside the pot body; the other end of the hose is communicated to the mini-type vacuum pump. The electric pressure cooker solves the problem that remaining food in the cooker has short freshness lifetime; the mini-type vacuum pump is started to extract residual air in the cooker, meanwhile, pressure inside the cooker is reduced, so that the external seal ring is clung to the external side of the folded edge, outside air cannot enter the cooker, a purpose of keeping fresh the residual food is achieved, and the electric pressure cooker is convenient for users to use.

Description

technical field [0001] The invention relates to the technical field of pressure cookers, and more particularly relates to an electric pressure cooker with air extraction. Background technique [0002] Ordinary pressure cooker, also known as pressure cooker in our daily life, heats water and food in a sealed state in the pot. After the water is boiled, steam is generated, which increases the air pressure in the pot and the pressure in the pot. Afterwards, the boiling point of water also rises thereupon, thereby greatly increasing the temperature in the pot, so as to achieve the purpose of fast cooking food. [0003] With the development of science and technology, electric pressure cookers that adopt more energy-saving and safe methods begin to appear in the market. From the market performance point of view, it has gradually replaced the traditional pressure cooker. Electric pressure cooker is an upgraded product of the optimized combination of traditional pressure cooker an...

AI Technical Summary

Problems solved by technology

[0004] With the enrichment of people's material conditions, sometimes users use electric pressure cookers to cook more food, and there are often some food left in the pot after eating. Throwing away these foods will feel a bit wasteful. If they are kept in the pot, due to the residual oxygen in the pot , and the pressure inside and outside the pot is basically balanced so that the sealing ring cannot be completely sealed, and the air can circulate freely. fresh preservation

Both methods of storage require pouring out the food, and when eating again, the food needs to be introduced into the pot for reheating, especially cold storage requires more energy to reheat the food, which brings inconvenience to the user

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