An electric pressure cooker

Abstract

A sudden jump pressure control device belongs to kitchen household electrical appliance technical field. It is located under the handle of electrical cooking utensils (1) and includes steam moving parts (6) and control valve (2), the steam moving parts (6) is installed in liner (7) and slide matching with it, control valve (2)is interlocked with steam moving parts (6),It is also characterized by equipped with flexible element (8), lever (5), rotate plate (15), magnet steel (16) fixed under the rotate plate and the dry spring (18); flexible components (8) pulls the lever, one end of lever which rotates at the fulcrum (51) is located between the lower surface of control valve and the steam moving parts, the other end pulls the rotate plate. The sudden jump pressure control device in the invention has advantages for simple structure, easy assemblage and use, reliable pressure control, swift movement, small amount of drift, high accuracy, low requirements of component materials of controlelements and reducing material cost. And it can achieve step regulation through setting the rotate lever equipped in control valve and the cam device of lifter rod.

Description

technical field [0001] The invention belongs to the technical field of kitchen cooking appliances, and in particular relates to an electric pressure cooker. Background technique [0002] Electric pressure cooker has become one of indispensable cooking utensils for people's daily life because of its energy saving, time saving, convenience and practicality. At present, there are two types of electric pressure cookers on the market according to the pressure adjustment method. One is non-adjustable pressure, that is, only a certain pressure can be used to cook different kinds of food; the other is adjustable pressure, which can adjust the appropriate pressure according to cooking needs. [0003] In the prior art, the pressure control of the pressure cooker is usually through the push rod of the fixed electric heating plate and the elastic touch piece located at the lower part of the electric heating plate. The installation and adjustment of this pressure control device is relati...

AI Technical Summary

Problems solved by technology

This structure does not drop the pressure sharply after reaching the peak value, but the pressure drop rate is still high, and it cannot be stabilized in the peak area at regular intervals, and the randomness of use is poor, and the structure is complex

[0006] Chinese patent CN1692865A "an electric heating pressure device" adopts a rigid connection between the pot cover and the elastic element end, and sets a switch at the displacement end and the static end to be connected in series to the circuit to realize the pressure closed-loop control, but the structure is still complex and the pressure control is reliable. Poor performance, outer pot material consistency, high strength requirements, increased manufacturing cost

[0007] Chinese patent CN2503818 "electric cooker pressure device" controls the switch through the piston rod; and in the adjustable pressure electric cooker technology CN2322253 "displacement adjustable control switch", it is proposed that the displacement signal of the drive rod drives the drive plate to move, and the circuit is switched on and off. contact switch; and CN233919 "a kind of timing pressure maintaining and regulating mechanism for electric voltage cooker", which cooperates with the flashing pressure regulating switch and the timer to realize the pressure maintaining function. Mechanical procedures, complex structure, resulting in high failure rate

The disadvantage of this type of technology is that the inner pot and other parts need to be consistent with the material performance and size of the outer pot; the processing accuracy of the electric heating plate is also high, and the high precision requirements of the parts increase the manufacturing cost. At the same time, the reliability of the pressure control device is poor, low precision

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