CN2605799Y - Safety automatic pressure controller of electric pressure pot - Google Patents

Abstract

Disclosed is a pressure safety servomechanism for a pressure cooker, comprising a cooker crust(1), a cooker endoconch(2) and a cooker liner(4). The bottom of a heater(3) is provided with a ring lug(5) boss and at least three curb pins(7); the curb pins(7) are provided with springs which prop up between the heater(3) and the cooker endoconch(2); a mandirl (8)is arranged at the bottom of the heater(3) corresponding to a safety switch (9) on the underside of the cooker endoconch(2); the mandirl (8) passes through a hole on the cooker endoconch(2) and matches with the safety switch(9). With reasonable design and sensitive overpressure controlment, the utility model works safely and reliably. The servomechanism, simple in structure, low in cost and good in utilization effect, can improve heating effect and boiling quality.

Description

Electric pressure rice cooker pressure insurance automaton

Technical field

The utility model relates to a kind of household electrical appliance, particularly a kind of electric pressure rice cooker pressure insurance automaton that improves electrical appliance safety.

Background technology

Electric cooker is a kind of popularization household electrical appliance, and common electric cooker does not have pressure when cooking, and it is second-rate to boil, and power consumption consuming time is big; Electric pressure rice cooker has effectively improved the quality that boils, but its control circuit complex structure has certain pressure when boiling, brought unsafe factor, and cost cost height; The computer-shape electric pressure rice cooker utilizes computer chip and fuzzy technology control, has optimized the combination property of electric cooker, has both improved reliability, the stability of work, improved the quality that boils again, but significantly increase product cost simultaneously, the selling price costliness is difficult to popularization and application.Existing electric pressure rice cooker has pot shell, pot inner casing, pot courage, pot lid, easing valve, pressure hammer, heat-generating disc, control circuit, pot courage is packed in pot inner casing, pot covers spiral-lock pot inner casing, pot courage, make the sealing of pot courage, the easing valve that pot covers, pressure hammer plays safety, the pressure limiting effect, heat-generating disc is contained in pot inner casing and directly contacts with pot courage, if easing valve, pressure hammer control is malfunctioning, can cause security incident, so pot inner casing bottom surface of electric pressure rice cooker heat-generating disc correspondence is equiped with pressure sensitive switch, plays the effect of insurance, when the pressure superpressure in pot courage, pot courage is to the lower compression heat-generating disc, heat-generating disc compressing pot inner casing is out of shape downwards, makes pressure sensitive switch disconnect the electric cooker power supply, because the inner casing intensity of being stewed, the influence of the factor of aspects such as material, its precise control is poor, thereby the functional reliability that has reduced product is poor.

Summary of the invention

The purpose of this utility model is that a kind of improved electric pressure rice cooker pressure insurance automaton is provided for the shortcoming that overcomes above-mentioned prior art, optimizes product structure, and improves its security performance, thereby improves reliability of products.

The purpose of this utility model can realize by following technical measures: this device is the part of electric pressure rice cooker, it is the improvement of on the basis of above-mentioned electric pressure rice cooker, being done, its heating element bottom is provided with annular boss, the heating element bottom surface is provided with three locating pins at least, each locating pin is distributed in different angle positions, locating pin is passed the perforate of pot inner casing and is connected heating element, leave the gap between heating element and pot inner casing, locating pin is provided with spring and withstands between heating element and pot inner casing, heating element can be shifted to the lower compression spring, the bottom surface of pot inner casing is provided with discharge cock, position corresponding with discharge cock at the bottom of the heating element is provided with push rod, and push rod passes the perforate of pot inner casing and cooperates with discharge cock, and heating element moves down can push the discharge cock outage open, when heating element moves down into its annular boss contact pot inner casing, then form base stably.During normal the use, heating element is withstood by spring is close to pot courage, improve and add thermal effect, if easing valve, pressure hammer are controlled malfunctioning, pressure in pot courage raises and makes pot courage to the lower compression heating element, the spring that the heating element compression set nails on moves down, and push rod is pushed discharge cock open and cut off the electric cooker power supply, plays the security insurance effect.

Of the present utility model reasonable in design, superpressure control is sensitive, safe and reliable, control device is simple in structure, low cost of manufacture, and result of use is good, raising adds thermal effect and the quality that boils, and is fit to apply, and is a kind of safe and practical electric pressure rice cooker pressure insurance automaton.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

The utility model is described in further detail below with reference to accompanying drawing, with reference to Fig. 1, this minute-pressure electric cooker has pot shell [1], be equiped with pot inner casing [2] in pot shell [1], pot courage [4], heating element [3], control circuit, heating element [3] can adopt slowly-releasing heat heat-generating disc and chassis to form, annular boss [5] is arranged in garden week at heating element [3] bottom, the height of annular boss [5] is 3～9mm, heating element annular boss [5] inner bottom surface is equipped with three locating pins [7], locating pin [7] is the thumb screw nail, three locating pins [7] distributing position is three angles of equilateral triangle, locating pin [7] is passed the perforate of pot inner casing, spring [6] is housed on the locating pin [7] to withstand between heating element [3] and pot inner casing [2], between heating element [3] end and pot inner casing [2] certain interval is arranged, heating element [3] can be shifted to lower compression spring [6], discharge cock [9] is equipped with in bottom surface at pot inner casing [2], push rod [8] is equipped with in heating element [3] position, the end that discharge cock [9] is corresponding, push rod [8] passes the perforate of pot inner casing [2] and cooperates with discharge cock [9], heating element [3] moves down can push discharge cock [9] outage open, when heating element moves down into its annular boss [5] contact pot inner casing [2], then form base stably, the pressure of pot courage can be controlled between 30～60 kPas, the realization minute-pressure is boiled.

Claims (2)

1, a kind of electric pressure rice cooker pressure insurance automaton, pot shell [1] is arranged, pot inner casing [2], pot courage [4], heating element [3], control circuit, it is characterized in that heating element [3] bottom is provided with annular boss [5], heating element [3] bottom surface is provided with three locating pins [7] at least, locating pin [7] is passed the perforate of pot inner casing [2] and is connected heating element [3], locating pin [7] is provided with spring [6] and withstands between heating element [3] and pot inner casing [2], leave the gap between heating element [3] and pot inner casing [2], the bottom surface of pot inner casing [2] is provided with discharge cock [9], the position corresponding with discharge cock [9] is provided with push rod [8] at heating element [3] end, and push rod [8] passes the perforate of pot inner casing [2] and cooperates with discharge cock [9].

2, pressure insurance automaton according to claim 1 is characterized in that the annular boss [5] of heating element [3] bottom highly is 3～9mm.

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