CN2431813Y - Micro-voltage electric cooker - Google Patents

Abstract

The utility model relates to a micro-voltage electric cooker. A cooker cover is a shaping component which is provided with an inner cavity and a straight-way type or valve type air discharge hole, and a float valve is arranged in the air discharge hole which is a shoulder hole. The float valve comprises a barrel-shaped shell body of which inner part is provided with a floater, and the lower end of the shell body is provided with an L-shaped annular sealing ring for limiting the descending position of the floater forms a shape which is like a Chinese character 'zhong' and is hollow, and the upper end of the floater is a lug boss-shaped floater cover and the lower end is a funnel-shaped floater body and an outlet pipe of the funnel-shaped floater body. The pipe orifice of the outlet pipe is provided with a stop backflow plug. The overflow prevention function of the utility model is strong, and steam condensed water and overflowed juice can smoothly flow back the inner part of a pot. The inner part of the pot keeps constant micro-voltage, and the rice cooking effect is good. The mounting and the dismounting of the float valve are easy, and the cleaning is convenient.

Description

A kind of minute-pressure electric cooker

The utility model relates to a kind of minute-pressure electric cooker, is meant the pressure control device on the electric cooker pot cover especially.

Existing commercially available electric cooker generally all adopts the straight-line exhaust mode, promptly leaves a steam port on pot cover, and steam is directly discharged outside the pot by steam port.Though this mode is simple in structure, function singleness, steam directly goes out to leave hidden danger; No return-flow structure, the anti-overflow poor performance is prone to steam condensate and flows to live part, causes electric leakage, and the chance that causes accident is increased; Because a large amount of steam efflux, also can make pot interior rice dehydration too much and take away part nutrition, the reduction of rice quality; In addition, steam port is dirty easily, cleans to be difficult for.Chinese patent ZL97208889.X " a kind of energy-saving heat preserving formula electric cooker " has been shown a kind of pot cover that is provided with the minute-pressure air bleeding valve, and valve body is a structure open in usual, and the exhaust valve assembly is arranged, and the valve place leaves the gap of giving vent to anger.This structure is difficult in pot to form described minute-pressure state, and operating mode is difficult to unanimity normal operating condition is cooked in, and the valve assembly structure is difficult to miniaturization, and its dependability is not good.Chinese patent ZL93219329.3 " full-automatic energy-saving anti-overflow electric rice cooker " gives and has shown a kind of electric-controlled type minute-pressure Control Component, and the electrically-controlled component on the pot cover is realized insulation and transmission difficulty, causes complex structure thus, and practicality is low.

The purpose of this utility model provides a kind of simple in structure, and the anti-overflow performance is good, operating mode uniformity height in the pot, the electric cooker minute-pressure pressure control device that security performance is high.

According to a kind of minute-pressure electric cooker of above-mentioned purpose design, comprise outer pot, pot cover, electric hot tray, interior pot, electrically-controlled component, pot cover is the shaped component of a band inner chamber, and through type or valve formula exhaust hole are arranged on it, lays a float valve in the exhaust hole on pot cover.Wherein, described exhaust hole is a shoulder hole, and there is a platform counterbore step at pot cover upper surface exhaust hole place, and exhaust hole is positioned at counterbore central authorities, have on the pot cover lower surface one with the admission opening that connects at the bottom of the exhaust hole, the admission opening aperture is less than the exhaust hole aperture; Described float valve comprises the cartridge type housing, and the float with the cylindrical shell matched in clearance is housed in the housing, and the L type annular seal ring of restriction float downstream position is equipped with in the housing lower end.

The cartridge type housing upper end of float valve has makes housing be shelved on the interior upper edge of pot cover upper surface counterbore, and the upper edge fuses with annular cover, the cylindrical shell of restriction float upward position.Float is middle font, hollow, and the upper end is the float cover of boss type, the lower end is funnel type float main body and its outlet.This hopper outlet pipe and admission opening matched in clearance, its exit are provided with the dowel that radially distributes, and non-return stream plug is housed under the dowel.The size of float cover convex platform is less than annular cover, and table top is made of dowel, is the anti-overflow hole between dowel, also is evenly distributed with the anti-overflow hole on the boss sidewall.

The utility model is simple in structure, and the anti-overflow performance is good, and steam condensate refluxes smooth and easy, can not cause accident; It is constant that pot inner pressure keeps substantially, operating mode uniformity height, and it is effective to cook, and the rice nutritive loss is little, quality is high, can cook at different altitude height; The steam valve mounting or dismounting are cleaned conveniently easily.

Accompanying drawing 1 is the assembling schematic diagram of the utility model pot cover upward pressure control device;

Accompanying drawing 2 is solid assembling exploded perspective views of pressure control device.

By accompanying drawing 1 as seen, the exhaust hole on the pot cover 1 is a stepped bore, and the installment state of steam float valve is to be shelved on the counterbore step.Float valve comprises cartridge type housing 2, middle font float, L RunddichtringO 5, and float comprises that boss type float cover 3, funnel type float main body 4, bell mouth place are equipped with can only descending adverse current plug 6 that can not be up.During work, because pot cover edge sealing, steam drain is interior pot and unique outlet of airtight container that loam cake forms.When not reaching boiling in pot, the deadweight of float makes it to be pressed on the good sealing of formation on the sealing ring.Steam pressure progressively rises in the pot body of sealing, and after the air pressure total amount was enough to overcome the weight of float, float was jacked up, and pot inner pressure is big more, and the height that float is held up is high more, and at this moment steam then gushes from the gap between float and housing; Along with the outflow of steam, the pressure in the pot descends gradually, and the height of float also descends gradually, until realizing sealing causing pot inner pressure to rise once more again, repeats said process.This follows the substantially constant that process has also guaranteed pot inner pressure, and when steam flowed out, together the thin rice gruel that overflows from the gap directly entered under the water conservancy diversion of annular cover in the funnel type float of hollow, and gets back into through adverse current along funnel and to flow in the pot.

Claims (7)

1, a kind of minute-pressure electric cooker comprises outer pot, pot cover (1), electric hot tray, interior pot, electrically-controlled component, and pot cover is the shaped component of a band inner chamber, and through type or valve formula exhaust hole are arranged on it, it is characterized in that laying in the exhaust hole on pot cover a float valve.

2, electric cooker according to claim 1 is characterized in that exhaust hole is a shoulder hole, and there is a platform counterbore step at pot cover upper surface exhaust hole place, have on the pot cover lower surface one with the admission opening that connects at the bottom of the exhaust hole, the admission opening aperture is less than the exhaust hole aperture.

3, electric cooker according to claim 1 is characterized in that described float valve comprises cartridge type housing (2), and the float (4) with the cylindrical shell matched in clearance is housed in the housing, and the L type annular seal ring (5) of restriction float downstream position is equipped with in the housing lower end.

4, electric cooker according to claim 3 is characterized in that cartridge type housing upper end has to make housing be shelved on upper edge in the pot cover upper surface counterbore that the upper edge fuses with annular cover, the cylindrical shell of restriction float upward position.

5, according to claim 3 or 4 described electric cookers, it is characterized in that described float is middle font, hollow, the upper end is the float cover (3) of boss type, the lower end is funnel type float main body and its outlet.

6, electric cooker according to claim 5 is characterized in that hopper outlet pipe and admission opening matched in clearance, and its exit is provided with the dowel that radially distributes, and non-return stream plug (6) is housed under the dowel.

7, electric cooker according to claim 5, the size that it is characterized in that the float cover convex platform is less than annular cover, and table top is made of dowel, is the anti-overflow hole between dowel, also is evenly distributed with the anti-overflow hole on the boss sidewall.