Pressure cooker

Abstract

The invention provides a pressure cooker which comprises a cooker cover and a cooker body, wherein a sealing ring is arranged between the cooker cover and the cooker body, a limiting valve is arrangedon the cooker cover; the limiting valve comprises a pressure limited valve body arranged on the cooker cover, a pressure limited valve element arranged in the pressure limited valve body, and a sealing hood arranged between the pressure limited valve element and the pressure limited valve body so as to hermetically connect the pressure limited valve element and the pressure limited valve body; aseam running through the pressure limited valve element is arranged on the pressure limited valve element; and the pressure limited valve element is made from flexile material. According to the pressure cooker disclosed by the invention, the flexible material is adopted as the pressure limited valve element; in a certain pressure scope, the seam of the pressure limited valve element is extruded tobe closed by the inherent characteristic of the flexible material of the pressure limited valve element, the seam of the pressure limited valve element is opened and pressure is released only when pressure exceeds a certain limitation, and after pressure recovers to a limited value, the opened seam is closed again, so that the stability of the pressure in the cooker is ensured. By adopting the flexible material as the pressure limited valve element, the airtightness of the structure is better, and pressure retaining is more steady.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to a pressure cooker. Background technique [0002] Pressure cookers are widely loved for their ability to cook quickly and with little loss of nutrition in the food they cook. The pressure cooker has become one of the fast-growing kitchen utensils in the cooking utensils industry because of its time-saving, power-saving, convenient and quick use and other advantages. The pressure limiting valve structure of the existing pressure cooker all adopts hard seal to realize the sealing state, such as the steel valve core and the steel exhaust pipe, etc., this structure is poor in sealing performance, and it is easy to cause the problem of poor pressure retention of the pressure cooker. Contents of the invention [0003] The purpose of the present invention is to solve the above problems and provide a pressure cooker with better sealing performance to ensure that the pressu...

AI Technical Summary

Problems solved by technology

The pressure limiting valve structure of the existing pressure cooker adopts hard seal to realize the sealing state, such as the steel valve core and the steel exhaust pipe, etc., this structure has poor sealing performance, and it is easy to cause the problem of poor pressure retention of the pressure cooker

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