Upper cover of pressure electric cooker

Abstract

The invention discloses an upper cover of a pressure electric rice cooker. The upper cover comprises an internal cover articulated with a cooker body, a snapclose connected with the internal cover and capable of rotating around a center, a rotary handle arranged above the internal cover and driving the snapclose to rotate, a steam channel with a steam discharge hole arranged on the internal cover and a steam discharge mechanism consisting of a pressure bulb and positioned above the steam discharge hole, wherein, the internal cover is further provided with a self-reset anti-negative pressure push rod, a first end of the anti-negative pressure push rod passes through the steam channel wall and is directly opposite to the pressure bulb, and a second end corresponds to the rotary handle and is driven by the rotary handle. In the cooker, the rotation of the rotary handle generates displacement of the anti-negative pressure push rod and drives the pressure bulb to open the steam channel so as to connect the cooker with atmosphere and prevent difficult opening of the upper cover due to negative pressure generated by failure of a float valve and other steam discharge devices.

Description

technical field [0001] The invention relates to a cover of a pressure electric cooker, in particular to an upper cover of a pressure electric cooker capable of ensuring that the upper cover can be opened smoothly during the working process of the electric cooker, which belongs to the improvement technology of the existing pressure electric cooker. Background technique [0002] Existing pressure rice cookers generally have the upper cover of the following two structures: the first structure, when the electromagnet is not energized and working, the pressure ball is placed on the exhaust hole for a long time, so that the exhaust hole is closed. The small hole in the float valve is connected to the atmospheric pressure, and the cold air is discharged from the float valve; when the steam is heated and pressurized, the steam lifts the float valve and seals the pot body, thus forming a closed space to realize pressure cooking ; The thrust generated after the electromagnet is energi...

AI Technical Summary

Problems solved by technology

Although this structure cancels the float valve, there is no problem of clogging the small hole of the float valve, but the suction force generated by the electromagnet needs to overcome its own elastic recovery force, which requires a relatively large suction force, resulting in high cost, and the electromagnet is in the process of working for a long time. In the suction state, the heat is large, and it is easy to fail and cause danger

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