Extraction fresh-keeping electric pressure cooker

Abstract

The invention relates to the technical field of pressure cookers, and provides an extraction fresh-keeping electric pressure cooker which comprises a cooker body, an outer pot, an inner pot, an outer cover and an inner cover, wherein a circumferential groove with an opening facing upwards is formed in the outer side of the opening of the inner pot; a seal ring is arranged between the inner cover and the inner pot, and comprises an upper lip and a lower lip; the upper lip is clung to the inner side of the inner cover; the lower lip is a vertical annular ring; when the inner cover is in a closed state, the lower lip extends into the circumferential groove; a hose is connected onto the inner cover; one end of the hose is communicated to the inner side of the inner cover in a sealed manner; a mini-type vacuum pump is arranged in the cooker body; the other end of the hose is communicated to the mini-type vacuum pump. The extraction fresh-keeping electric pressure cooker has the advantages that the problem of short fresh-keeping time of residual food in the conventional cooker is solved; the mini-type vacuum pump is started to extract residual air in the extraction fresh-keeping electric pressure cooker, so that pressure in the extraction fresh-keeping electric pressure cooker becomes lower, the lower lip is clung to the inner side wall of the circumferential groove, and external air cannot enter the extraction fresh-keeping electric pressure cooker, that is, the purpose of keeping the residual food fresh for a long time can be realized; as a user needs not to pour the residual food out of the extraction fresh-keeping electric pressure cooker for fresh-keeping in another container, the use is more convenient.

Description

technical field [0001] The invention relates to the technical field of pressure cookers, and more particularly relates to an electric pressure cooker for air extraction and preservation. 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 pr...

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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