CN103705107A - Delayed pressure-maintaining shutoff valve for electric pressure cooker - Google Patents

Abstract

The invention discloses a delayed pressure-maintaining shutoff valve for an electric pressure cooker. The delayed pressure-maintaining shutoff valve is characterized by comprising a steam inlet tube communicated with the inner cavity of the electric pressure cooker and a valve cover assembly, wherein a steam exhaust hole, a sealing plate and a temperature control sheet are arranged in the valve cover assembly, the sealing surface of the sealing plate is a plane, and the sealing surface is dead against the steam outlet of the steam inlet tube and forms a structure for sealing while pressing the steam outlet and releasing steam exhaust while leaving from the steam outlet with the steam outlet of the steam inlet tube; the temperature control sheet is located at one end of the sealing plate and in a position where the sealing plate is pushed to press the steam outlet of the steam inlet tube during the deformation of the temperature control sheet with heat. The delayed pressure-maintaining shutoff valve has the advantages of simple structure and good sealing performance; when rice is cooked in the electric pressure cooker to boil, rice in the cooker continues to boil until rice grains are about to fully absorb water, and then a pressure-maintaining rice cooking state is entered; the rice grains of the rice cooked through the process are mellow, dry, tenacious in taste and obvious in rice aroma; the delayed pressure-maintaining shutoff valve is reasonable in structure.

Description

Electric pressure cooking saucepan time delay pressurize shut off valve

Technical field

The present invention relates to electric cooking appliance technical field, particularly relate to a kind of electric pressure cooking saucepan time delay pressurize shut off valve.

Background technology

At present, electric pressure cooking saucepan is on the market because explosion prevention function needs, and its working procedure is all energising heating, to the of short duration boiling of food, produces pressure in pot, enters power-off packing state, and after pot inner pressure reduces, then energising is heated to power-off pressurize.Constantly circulation, until food boils, the process that boils like this, for the more soup group food of the moisture content that boils, is not only to have facilitated but also power saving, and for boiling rice, effect is not just so good, if while boiling rice, rice just seethes with excitement, electric pressure cooking saucepan just enters power-off packing state, and what now the grain of rice can only be static bubbles open in hot water.When electric pressure cooking saucepan is switched on heating again, the rice in pot can not seethe with excitement again, and there is Rice & peanut milk on the rice rice grain surface cooking like this, and rice is not soft, moisture content heavy, there is no a meter fragrance yet.

Summary of the invention

Object of the present invention is just to provide a kind of being contained on existing electric pressure cooking saucepan product, can change the electric pressure cooking saucepan time delay pressurize shutoff device of the rice process that boils.

Solution of the present invention is such:

The present invention includes steam inlet pipe and valve bonnet assembly that band is communicated with pot of electric pressure inner chamber, in valve bonnet assembly, be provided with exhaust hole, sealing plate and temperature control sheet, the sealing surface of described sealing plate is plane, this sealing surface is over against the venthole of steam inlet pipe, push down venthole with the formation of steam inlet pipe venthole and seal, leave the structure that venthole discharges steam discharge; Described temperature control sheet is positioned at one end of sealing plate, is in temperature control sheet heat when distortion will promote to push down the position of steam inlet pipe venthole with sealing plate.

Technical scheme also comprises more specifically: described steam inlet pipe is straight tube-like, is vertically installed on pot cover.

Further: described steam inlet pipe is bending, and its lower end is vertically installed on pot cover, upper end bending, venthole be positioned at after bending laterally.

Further: to coordinate the sealing plate periphery and the valve bonnet assembly that seal to connect into elastic construction with the venthole of described steam inlet pipe, under normal condition, keep sealing plate to leave the state of air inlet.

Further: described in flexibly connect as the periphery at sealing plate is flanging or arc ring, utilize the strain that flanging or arc ring produce to drive sealing plate to move.

Advantage of the present invention is simple in structure, good airproof performance, make electric pressure cooking saucepan boil rice when seething with excitement, allow pot interior rice boil to continuously the grain of rice and be about to full of water part, enter again the vexed meal state of pressurize, the soft solid carbon dioxide of rice rice grain cooking through this process, entrance has chewiness, and have obvious rice fragrance, rational in infrastructure.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention one.

Fig. 2 is the scheme of installation of structure shown in Fig. 1.

Fig. 3 is the structural representation of the opening of structure shown in Fig. 1.

Fig. 4 is the structural representation of the closed state of structure shown in Fig. 1.

Fig. 5 is the structural representation of embodiments of the invention two.

Fig. 6 is the scheme of installation of structure shown in Fig. 5.

Fig. 7 is the structural representation of the opening of structure shown in Fig. 5.

Fig. 8 is the structural representation of the closed state of structure shown in Fig. 5.

In accompanying drawing, the 1st, valve bonnet assembly, the 2nd, pressing plate, the 3rd, temperature control sheet, the 4th, sealing plate, the 5th, mounting, the 6th, connecting bolt, the 7th, exhaust hole, the 8th, steam exhausting way, the 9th, admission opening, the 10th, pot body, the 11st, pot cover, the 12nd, attaching nut, the 13rd, sealing plate, the 14th, pot body sealing plate, the 15th, square spline plate, the 16th, main body mounting, the 17th, stifled vapour thimble.

The specific embodiment

Embodiment mono-:

As shown in Figure 1, 2,steam inlet pipe 6 is straight tube, internal diameter is admission opening 9, outlet atadmission opening 9 is provided withsealing plate 4, the periphery ofsealing plate 4 is pressed into arc ring, utilize the strain that flanging or arc ring produce to drivesealing plate 4 to move in limited distance, for closing or be discharged into the venthole ofsteam pipe 6.

Temperature control sheet 3 is positioned at one end ofsealing plate 4, is in 3 heats whens distortion of temperature control sheet will promote to push down the position ofsteam inlet pipe 6 ventholes with sealing plate 4.As shown in Figure 2, at normal temperatures,temperature control sheet 3 is presented convex, andsealing plate 4 freely covers at admission opening 9, and when electric pressure cooking saucepan is when normally heating,sealing plate 4 covers admission opening 9 and seals, and electric pressure cooking saucepan heats.

As shown in Figure 3, when pressure cooker receipt is to when boiling, back downsealing plate 4, high temperature pressure in pot enters valve bonnet assembly inside to crossing admission opening 9, heat is delivered totemperature control sheet 3, whentemperature control sheet 3 reaches after critical-temperature, produces to the distortion pressing down, compressingsealing plate 4 seals admission opening 9, enters packing state.

After boiling, treat that kettle temperature drops to normal temperature,temperature control sheet 8 automatically restores and presents convex, releasing sealedplate 4.

Embodiment bis-:

As shown in Fig. 5,6,7,8,embodiment 2 is with the difference of embodiment mono-: describedsteam inlet pipe 6 is bending, andsteam inlet pipe 6 tops connect stifledvapour thimble 17 and realize bending, and its lower end is vertically installed on pot cover, upper end bending, venthole be positioned at after bending laterally.The course of work of embodiment bis-is identical withembodiment 1.

Claims (5)

1. an electric pressure cooking saucepan time delay pressurize shut off valve, comprise that band is communicated with steam inlet pipe (6) and the valve bonnet assembly (1) of pot of electric pressure inner chamber, in valve bonnet assembly (1), be provided with exhaust hole (7), sealing plate (4) and temperature control sheet (3), it is characterized in that: the sealing surface of described sealing plate (4) is plane, this sealing surface is over against the venthole of steam inlet pipe (6), push down venthole with the formation of steam inlet pipe (6) venthole and seal, leave the structure that venthole discharges steam discharge; Described temperature control sheet (3) is positioned at one end of sealing plate (4), while being in the distortion of temperature control sheet (3) heat, will promote to push down with sealing plate (4) position of steam inlet pipe (6) venthole.

2. electric pressure cooking saucepan time delay pressurize shut off valve according to claim 1, is characterized in that: described steam inlet pipe (6) is straight tube-like, is vertically installed on pot cover.

3. electric pressure cooking saucepan time delay pressurize shut off valve according to claim 1, is characterized in that: described steam inlet pipe (6) is bending, and its lower end is vertically installed on pot cover, upper end bending, venthole be positioned at after bending laterally.

4. according to the electric pressure cooking saucepan time delay pressurize shut off valve described in claim 1 or 2 or 3, it is characterized in that: coordinate sealing plate (4) periphery and the valve bonnet assembly (1) that seal to connect into elastic construction with the venthole of described steam inlet pipe (6), under normal condition, keep sealing plate (4) to leave the state of air inlet.

5. electric pressure cooking saucepan time delay pressurize shut off valve according to claim 4, is characterized in that: described in flexibly connect as the periphery at sealing plate (4) is flanging or arc ring, utilize the strain that flanging or arc ring produce to drive sealing plate (4) mobile.

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