CN101953628A - Automatic steam exhausting electric pressure cooker - Google Patents

Abstract

The invention provides an automatic steam exhausting electric pressure cooker. The cooker comprises a cooker cover, a cooker inner container, a cooker body and a cantilever hinged with the cooker body, wherein the center of the cooker cover is rotationally pivoted to the cantilever; the cooker cover is rotationally buckled with or separated from the cooker body and provided with a counter weight pressure limiting valve; the cantilever is provided with an electromagnetic push rod; when the cooker cover is buckled with the cooker body, the electromagnetic push rod is close to the counter weight pressure limiting valve and can drive the counter weight pressure limiting valve to exhaust steam and release pressure; and when the cooker cover is separated from the cooker body, the electromagnetic push rod is far away from the counter weight pressure limiting valve. Compared with the prior art, the electric pressure cooker of the invention has the advantages of realizing automatic steam exhausting and pressure releasing through cooperating action of the electromagnetic push rod and the pressure limiting valve, ensuring that the cooker can only be opened under the condition that foods are boiled completely, eliminating the safety potential hazard of user scalding, further expanding application range and saving cost, along with simpler structure, more convenient installation and no occupation of internal space.

Description

A kind of electric pressure cooking saucepan of automatic steam discharge

Technical field

The present invention relates to culinary cuisine vessel electric pressure cooking saucepan, relate in particular to a kind of electric pressure cooking saucepan of automatic steam discharge.

Background technology

Electric pressure cooking saucepan in when culinary art because inside is hyperbaric environment, thereby the user is after electric calorifie installation stops heating work, need to wait in the pot that a high-temperature steam is liquefied as the water lid that could safety hit boils fully, generally be electric pressure cooking saucepan stop the heating waiting for a period of time after, implement manual steam discharge pressure release by manual turn Weight type pressure limiting valve, open pot cover then.But the method for above-mentioned manual steam discharge is difficult to before steam discharge confirm whether food fully boils in the pot, and steam bleeding cooling too early is owing to the temperature retention time deficiency, and food may not boil fully; And also might be owing to user's misoperation in manual steam discharge process, the high-temperature steam that the Weight type pressure limiting valve is discharged is scalded the user safety problem of causing danger.And owing to can only pass through manual steam discharge, some foods that need air circulation could realize better cooking in the process of cooking and cook effect are cooked in electric pressure cooking saucepan with regard to inconvenient, have limited the scope of application of electric pressure cooking saucepan.And because electric pressure cooking saucepan inside is hyperbaric environment, therefore in cooking process, generally can't realize boiling, food generally can only mix by the convective motion of molecule under the hyperbaric environment of electric pressure cooking saucepan, mix abundant inadequately, the boiling in can not realizing in a big way and fully mixing.For the food of congee soup class, the culinary art poor effect.

Also have some electric pressure cooking saucepans can realize automatic steam discharge in the market, but existing automatic steam exhaust device is arranged on electric pressure cooking saucepan inside usually, needs bigger installing space, and when automatic steam exhaust device breaks down, keep in repair also very inconvenient.

Summary of the invention

The invention provides a kind of simple in structure, easy for installation, electric pressure cooking saucepan of not taking the automatic steam discharge of inner space, overcome above-mentioned the deficiencies in the prior art.

In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of electric pressure cooking saucepan of automatic steam discharge comprises pot cover, pot courage, pot body and the cantilever hinged with the pot body; The central authorities of described pot cover rotatably are pivotally attached on the cantilever, and pot cover fastens with the pot body by rotation mode or separates, and pot cover is provided with the Weight type pressure limiting valve, and described cantilever is provided with the electromagnetism push rod; When described pot cover was in the position that fastens with the pot body, described electromagnetism push rod was near the Weight type pressure limiting valve and can promote the pressure release of Weight type pressure limiting valve steam discharge; When described pot cover was in the position of separating with the pot body, described electromagnetism push rod was away from the Weight type pressure limiting valve.

Described cantilever is provided with waterproof dustproof protection box, and described electromagnetism push rod is installed in the protection box.

Described Weight type pressure limiting valve comprises the sealed valve core of the steam drain of gland steam exhauster and sealing gland steam exhauster, and described electromagnetism push rod can promote the steam drain that sealed valve core departs from gland steam exhauster.

Be fixed with the sliding cover that rises on the described sealed valve core, described pot cover is provided with position-limiting cover, and described sliding the liter is provided with the sliding mechanism that rises between cover and the position-limiting cover; Described electromagnetism push rod acts on sliding the liter on the cover, makes sealed valve core depart from the steam drain steam discharge.

The described sliding mechanism that rises comprises the slope that is located at the projection on the sliding liter cover and is located at the position-limiting cover upper peripheral edge, and described projection can slide on slope and move up and down.

Described sealed valve core is cone poppet or the spherical spool that has rubber seal.

The described sliding cover that rises comprises sliding piece, and described electromagnetism push rod acts on the sliding piece.

Be equipped with on the described sliding piece can with the reset magnet of electromagnetism push rod adhesive.

The central authorities of described pot cover are provided with the post that revolves with the cantilever pivot joint, and the described post that revolves is the metal capsule that the center is provided with blind hole, in the described metal capsule temperature sensor is installed.

Can drive the elasticity pressure relief device that pot courage moves down after being provided with pressurized between the bottom of described pot courage and the pot body.

Compared with prior art, the present invention is by being provided with the Weight type pressure limiting valve fixedly installing on the cantilever on electromagnetism push rod, the pot cover, and when pot cover rotated, the Weight type pressure limiting valve rotated along with the rotation of pot cover on pot cover; When pot cover was in the position that fastens with the pot body, the electromagnetism push rod was near the Weight type pressure limiting valve and can promote the pressure release of Weight type pressure limiting valve steam discharge; When pot cover was in the position of separating with the pot body, the electromagnetism push rod was away from the Weight type pressure limiting valve.Electric pressure cooking saucepan of the present invention is realized automatic steam discharge pressure release by the interoperation of electromagnetism push rod and Weight type pressure limiting valve, guarantees that food could realize under the state boiling boiling; And need not the manual steam discharge of user, eliminated the potential safety hazard that the user is scalded, in addition owing to realized that automatic steam discharge pressure release function has also further expanded the scope of application of electric pressure cooking saucepan.Compared with prior art, electric pressure cooker structure of the present invention is also simpler, installation is more convenient and do not take the inner space, has saved cost.

And, by the electromagnetism push rod is installed in the protection box, electromagnetism push rod and external environment condition are isolated, make the electromagnetism push rod avoid the pollution of other impurity in water vapour that dust in the external environment condition and Weight type pressure limiting valve discharge or the external environment condition.In addition owing to can realize automatic steam discharge, therefore can also be in the process of cooking food according to the culinary art needs of different foods, thereby thereby can promote the automatic steam discharge of Weight type pressure limiting valve by the electromagnetism push rod realizes that the food boiling realizes stirring well-mixed effect in the electric pressure cooking saucepan.

Description of drawings

Fig. 1 is the structural representation of the electromagnetism push rod of the embodiment of the invention near the Weight type pressure limiting valve.

Fig. 2 is the structural representation of the electromagnetism push rod of the embodiment of the invention away from the Weight type pressure limiting valve.

Fig. 3 is the complete machine blast structural representation of the embodiment of the invention.

Fig. 4 is an embodiment of the invention cooker cover portion separation structure schematic diagram.

Fig. 5 is an embodiment of the invention pot cover part vertical view.

Fig. 6 is an embodiment of the invention Weight type pressure limiting valve cutaway view.

Fig. 7 is embodiment of the invention electromagnetism push rod and protection box phantom.

Fig. 8 is embodiment of the invention electromagnetism push rod and protection box blast structural representation.

Among the figure:

1. pot cover; 10. temperature sensor; The pot courage; The pot body;

31. stay-warm case; 32. outer cover; 4. cantilever; 5. Weight type pressure limiting valve;

51. sliding piece; 511. reset magnet; 52. gland steam exhauster; 521. steam drain;

53. sealed valve core; 54. the sliding cover that rises; 541. projection; 55. position-limiting cover;

551. slope; 6. protection box; 61. lid; 62. base;

63. fixing compressing tablet; 64. sealing shroud; 7. handle; 8. electromagnetism push rod;

81. back-moving spring; 9. elasticity pressure relief device; 91. central lid assembly; 92. dish spring;

93. pressure switch; 110. electric calorifie installation.

The specific embodiment

Further specify technical scheme of the present invention below in conjunction with drawings and Examples.

Please refer to Fig. 1 to shown in Figure 5, be the structural representation of the embodiment of the invention.The electric pressure cooking saucepan of a kind of automatic steam discharge of the present invention, comprise pot cover 1, pot courage 2, pot body 3 and the cantilever 4 hinged with pot body 3, pot body 3 comprises stay-warm case 31 and outer cover 32, the central authorities of pot cover 1 rotatably are pivotally attached on the cantilever 4, pot cover 1 fastens with pot body 3 by rotation mode or separates, handle 7 is fixedly mounted on pot cover 1 and revolving on the post that cantilever 4 is connected, revolves post and rotates and drive pot cover 1 rotation and fasten with pot body 3 or separate thereby can drive during swing handle 7.Pot cover 1 is provided with Weight type pressure limiting valve 5, and when electric pressure cooking saucepan was worked, when pot inner pressure reached a certain limit value, Weight type pressure limiting valve 5 was opened the steam discharge pressure release.As shown in Figure 1, cantilever 4 is provided with on electromagnetism push rod 8, the pot cover 1 Weight type pressure limiting valve 5 is set, Weight type pressure limiting valve 5 rotates along with the rotation of pot cover on pot cover, when pot cover 1 was in the position that fastens with pot body 3, electromagnetism push rod 8 was near Weight type pressure limiting valve 5 and can promote the 5 steam discharge pressure releases of Weight type pressure limiting valve; As shown in Figure 2, when pot cover 1 was in the position of separating with pot body 3, electromagnetism push rod 8 was away from Weight type pressure limiting valve 5.

Electromagnetism push rod 8 is arranged on thecantilever 4, whenpot cover 1 is in the position that fastens withpot body 3,electromagnetism push rod 8 is near Weight typepressure limiting valve 5, the steam discharge pressure release of Weight typepressure limiting valve 5 meeting not timing in cooking process, the water vapour of its discharge can release, near thereby theelectromagnetism push rod 8 polluting,electromagnetism push rod 8 exposes and also is easy in environment by the dust in the environment or other contaminating impurities in addition, in order to prevent thatelectromagnetism push rod 8 is by the duty of pollution effectelectromagnetism push rods 8 such as steam or dust,protection box 6 is set oncantilever 4, describedelectromagnetism push rod 8 is installed in theprotection box 6, andprotection box 6 can play dustproof and waterproof.

As shown in Figure 7 and Figure 8, be the structural representation ofelectromagnetism push rod 8 and protection box 6.Electromagnetism push rod 8 of the present invention is installed in theprotection box 6, andprotection box 6 comprises lid 61,base 62; For the ease ofelectromagnetism push rod 8 fixing inprotection box 6, also being provided with fixedly, compressingtablet 63 is pressed abd fixed on the electromagnetism push rod earlier on thebase 62, be covered with lid 61 sealing protections then, fixedly between compressingtablet 63 and thebase 62 and all can or be threaded fixing between lid 61 and the base 62 by snapping.The tail end ofelectromagnetism push rod 8 is provided with back-moving spring 81, and the position ofprotection box 6 correspondingelectromagnetism push rod 8 head ends has through hole, andelectromagnetism push rod 8 stretches out from through hole and can promote the 5 steam discharge pressure releases of Weight type pressure limiting valve.For anti-sealing or dust etc.enter protection box 6 inside from this through hole, between the through hole ofelectromagnetism push rod 8 head ends andprotection box 6, be provided with sealingshroud 64, described sealingshroud 64 is set in the head end ofelectromagnetism push rod 8, forms hermetically-sealed construction betweenelectromagnetism push rod 8 andprotection box 6.

Please refer to shown in Figure 6ly, be the cutaway view of Weight type pressure limiting valve 5.Weight type pressure limiting valve 5 comprises gland steam exhauster 52 and sealed valve core 53 in the present embodiment, is provided with the steam discharge through hole in the middle of the gland steam exhauster 52, and its top is a steam drain 521, sealed valve core 53 sealing steam drains 521.Described Weight type pressure limiting valve 5 also comprises sliding cover 54 and the position-limiting cover 55 of rising, and position-limiting cover 55 fixedly is located on the pot cover 1, and the sliding cover 54 of rising is fixedlyed connected with sealed valve core 53, slidingly rises cover 54 can be done rising or decline on position-limiting cover 55 actions.The sliding liter is provided with the sliding mechanism that rises between cover 54 and the position-limiting cover 55, the sliding mechanism that rises comprises the slope 551 that is located at the projection 541 on the sliding liter cover 54 and is located at position-limiting cover 55 upper peripheral edges, projection 541 is symmetrical arranged sliding the liter on the cover 54, and projection 541 can slide on slope 551 and move up and down.Described symmetrically arranged projection 541 can make that sliding to rise cover 54 more stable during lifting in position-limiting cover 55.In the present embodiment, slope 551 is arranged on position-limiting cover 55 upper peripheral edges, and slope 551 is located in the position-limiting cover 55; Slope 551 is located at structures in the position-limiting cover 55 to make and slidingly rises the elevating movements of cover 54 in position-limiting cover 55 and compare that sliding to rise cover 54 more stable in the structural elevating movement that slope 551 is set directly at position-limiting cover 55 upper peripheral edges.The sliding liter on the cover 54 also is provided with sliding piece 51, and electromagnetism push rod 8 body of rod levels are installed, when pot cover 1 and a pot body 3 are in the position of fastening, and the sliding piece 51 of electromagnetism push rod 8 on the Weight type pressure limiting valve 5.When promoting 5 pressure releases of Weight type pressure limiting valve, realizes electromagnetism push rod 8 by promoting sliding piece 51, thereby 8 less motive forces of needs of electromagnetism push rod act on and just can promote sliding piece 51 on the sliding piece 51 and promote 5 actions of Weight type pressure limiting valves like this, and then promote the sliding cover 54 that rises and do ascending motion make sealed valve core 53 depart from the steam drain 521 steam discharge pressure releases of gland steam exhauster 52 on the slope 551 of position-limiting cover 55.

When electromagnetism pushrod 8 homings, Weight typepressure limiting valve 5 descends alongslope 551 by the self gravitation effect and returns to initial position, and sealedvalve core 53 is returned to the position of sealing steam drain 521.But this resetting only relies on the gravity of Weight typepressure limiting valve 5 self to slide onslope 551, if frictional force is bigger betweenslope 551 and the slidingliter cover projection 541, then may exist and hinder the decline smoothly onslope 551 of Weight typepressure limiting valve 5, then just may not have sealing to put in place between sealedvalve core 53 and thesteam drain 521 and have the problem of gas leakage.In order to address this problem, embodiments of the invention are realized byreset magnet 511 is installed on slidingpiece 51,reset magnet 511 be installed inelectromagnetism push rod 8 over against slidingpiece 51 on, betweenreset magnet 511 and theelectromagnetism push rod 8 electromagnetic attraction is arranged,reset magnet 511 can with 8 adhesives of electromagnetism push rod, drive and slidingly risecover 54 and then drive the position that sealedvalve core 53 is returned to sealingsteam drain 521 thereby under the adhesive graviational interaction, drive slidingpiece 51 actions.

Sealed valve core 53 is for cone poppet or have the spherical spool of rubber seal in an embodiment of the present invention, wherein has on the spherical spool of rubber seal the steel ball for peripheral parcel one deck rubber seal.

When the electric pressure cooking saucepan steam discharge, the slidingcover 54 that rises is done ascending motion in position-limitingcover 55 therebyelectromagnetism push rod 8 promotes slidingpiece 51 promotions, thereby makes sealedvalve core 53 depart from thesteam drain 521 steam discharge pressure releases of gland steam exhauster 52.When electromagnetism pushrod 8 homings, in position-limitingcover 55, do descending motion therebyelectromagnetism push rod 8 drives the slidingcover 54 that rises of slidingpiece 51 drives withreset magnet 511 adhesives, thereby make sealedvalve core 53 be returned to the position of sealingsteam drain 521.

As another embodiment of the present invention, be fixed with the slidingcover 54 that rises on the identical sealedvalve core 53 with previous embodiment, be fixed with position-limitingcover 55 on thepot cover 1, whereinelectromagnetism push rod 8 also can act directly on to slide and rise on thecover 54, and the slidingliter cover 54 of promotion is done ascending motion in position-limitingcover 55 makes sealedvalve core 53 depart from thesteam drain 521 steam discharge pressure releases ofgland steam exhauster 52.

As shown in Figure 3, describedpot cover 1 is provided with the temperature sensor 10 that detects temperature in thepot courage 2, described temperature sensor 10 is installed in the central authorities ofpot cover 1 and revolving on the post ofcantilever 4 pivot joints, and wherein revolving post is the metal capsule that the center is provided with blind hole, and temperature sensor 10 is installed in the metal capsule.Between the bottom ofpot courage 2 and thepot body 3electric calorifie installation 110 and elasticity pressure relief device 9 are installed, elasticity pressure relief device 9 can be experienced culinary art pressure inpot courage 2 and drivepot courage 2 andelectric calorifie installation 110 moves down, and elasticity pressure relief device 9 comprisescentral lid assembly 91,dish spring 92 andpressure switch 93; The structure of described elasticity pressure relief device 9 adopts existing techniques in realizing, therefore repeats no more in the present invention.The heating power ofelectric calorifie installation 110 is 300 ~ 3000W in embodiments of the present invention, and adopts 500-1200W for well in actual use, and better heating power adopts 800W.

Owing in electric pressure cooking saucepan, be provided with temperature sensor 10 and elasticity pressure relief device 9 simultaneously; thereby can realize temperature control and pressure control control simultaneously; can guarantee that pot inner pressure increases to after the dangerous pressure elasticity pressure relief device 9 and drivespot courages 2 and move down decompression protection; effectively overcome Temperature Control Type electric pressure cooking saucepan in the prior art and can't realize the defective of safety relief protection, largely improved the security performance of Temperature Control Type electric pressure cooking saucepan.And owing to temperature difference in the different pressures correspondence, thereby the utilization that can also pass through temperature sensor 10 realizes the pressure step-less adjustment of electric pressure cooking saucepan, make different foods can adopt the different pressures culinary art, both can significantly improve the mouthfeel of food, can eliminate the security performance defective of Temperature Control Type electric pressure cooking saucepan again, more help the marketing of electric pressure cooking saucepan.

Will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.

Claims (10)

1. the electric pressure cooking saucepan of an automatic steam discharge comprises pot cover, pot courage, pot body and the cantilever hinged with the pot body; The central authorities of described pot cover rotatably are pivotally attached on the cantilever, and pot cover fastens with the pot body by rotation mode or separates, and pot cover is provided with the Weight type pressure limiting valve, it is characterized in that: described cantilever is provided with the electromagnetism push rod; When described pot cover was in the position that fastens with the pot body, described electromagnetism push rod was near the Weight type pressure limiting valve and can promote the pressure release of Weight type pressure limiting valve steam discharge; When described pot cover was in the position of separating with the pot body, described electromagnetism push rod was away from the Weight type pressure limiting valve.

2. the electric pressure cooking saucepan of a kind of automatic steam discharge according to claim 1, it is characterized in that: described cantilever is provided with waterproof dustproof protection box, and described electromagnetism push rod is installed in the protection box.

3. the electric pressure cooking saucepan of a kind of automatic steam discharge according to claim 1, it is characterized in that: described Weight type pressure limiting valve comprises the sealed valve core of the steam drain of gland steam exhauster and sealing gland steam exhauster, and described electromagnetism push rod can promote the steam drain that sealed valve core departs from gland steam exhauster.

4. the electric pressure cooking saucepan of a kind of automatic steam discharge according to claim 3 is characterized in that: be fixed with the sliding cover that rises on the described sealed valve core, described pot cover is provided with position-limiting cover, and described sliding the liter is provided with the sliding mechanism that rises between cover and the position-limiting cover; Described electromagnetism push rod acts on sliding the liter on the cover, makes sealed valve core depart from the steam drain steam discharge.

5. the electric pressure cooking saucepan of a kind of automatic steam discharge according to claim 4 is characterized in that: the described sliding mechanism that rises comprises and is located at the sliding slope that rises the projection on the cover and be located at the position-limiting cover upper peripheral edge that described projection can slide and move up and down on slope.

6. will remove the electric pressure cooking saucepan of 3 or 4 described a kind of automatic steam discharges according to right, it is characterized in that: described sealed valve core is cone poppet or the spherical spool that has rubber seal.

7. according to the electric pressure cooking saucepan of claim 4 or 5 described a kind of automatic steam discharges, it is characterized in that: the described sliding cover that rises comprises sliding piece, and described electromagnetism push rod acts on the sliding piece.

8. the electric pressure cooking saucepan of a kind of automatic steam discharge according to claim 7 is characterized in that: be equipped with on the described sliding piece can with the reset magnet of electromagnetism push rod adhesive.

9. according to the electric pressure cooking saucepan of each described a kind of automatic steam discharge of claim 1 to 4, it is characterized in that: the central authorities of described pot cover are provided with the post that revolves with the cantilever pivot joint, the described post that revolves is the metal capsule that the center is provided with blind hole, in the described metal capsule temperature sensor is installed.

10. the electric pressure cooking saucepan of a kind of automatic steam discharge according to claim 9 is characterized in that: can drive the elasticity pressure relief device that pot courage moves down after being provided with pressurized between the bottom of described pot courage and the pot body.

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