CN1146317A - Safety automatic multi-function pressure cooker - Google Patents

Abstract

The invented pressure cooker features that its work pressure is adjutable between 25-150 KPa, on the lid the composite valve and safety device for closing and opening lid aref ixed. It is fitted with a starter for pneumatically turning off the fire, which is installed together with the tap of many kinds of kitchen range through flexible shaft to implement the automatic control of turning off fire for mang kinds of kitchen range. Said cooker is fitted with an inner enamel cooker to avoid the pollution of aluminium and improve the special flavour of the food and implement multipurpose. Said composite valve can be used to transform the existent pressure cooker to make it avoid explosion under the condition of careless misuse and it can be fitted to multikind of kitchenrange to implement the automatic control of pneumatically turning off the fire.

Description

Safety automatic multi-function pressure cooker

The present invention is about the invention of pressure cooker (revolving type), particularly safety automatic multi-function pressure cooker (hereinafter to be referred as this pot), and this pot is constructed as accompanying drawing 1,2, by pot body [1], pot cover [3], upper and lower handle [11], [12] and miniature lever formations such as [2].Feature is: operating pressure 25-150kpa, and adjustable.Be fixed with combination valve [9] on the pot cover and close lid, the safety device of uncapping [10].The supporting pressure that has adjustable gyp to make pressure closes fiery starter [5], and the pass firearm (Figure 13,14) of flexible axle of this device [4] and corresponding multiple cooking stove (gas furnace, petroleum furnace, coal stove, coal kitchen range etc.) is fitted together, and constitutes the pot inner pressure automatic control and closes ignition system.When this pot is joined the electrothermal furnace seat, also available pot inner pressure automatic control outage, also available temperature control outage.Spill is made in this pot of the bottom of a pan, also can be supporting with the electrothermal furnace seat of existing electric pressure cooking saucepan.Also can specially join the electrothermal furnace seat.This pot of combination valve has enough row pressure choke preventing functions, boils congee or soup such as beans, corn, dried mushroom, sea-tangle, piles pot, after placing on the stove heating, as user's error, very hot oven burns burnt to doing (being called for short " error state "), peak overpressure in the pot≤1.4 times of maximum working pressure (MWP)s far can not exploded.Existing partial pressure pot can not appear in this pot yet, because of the standard cushion rubber is produced shear stress and flexure stress, cause in operating pressure or in the safe pressure cushion rubber break or be extruded pot outside the blast that causes.The row pressure ability of this pot of combination valve is the large and small design by the bottom of a pan calorific intensity; Close lid, the safe pressure of uncapping is by the size design of pressing the cross section gross pressure in the pot cover, and is both safe and reliable, again in manufacturing and designing, large-scale and super-huge (more than the 200L) pressure cooker preparatory condition.The pot cover height of pressure cooker also is one of safety factor, and this pot pot cover height is by 1/4 design of pot footpath size.Combination valve can not fly out and hurt sb.'s feelings, and does not have annoying fuse sheet safety valve and rubber safety valve yet, does not need regularly to change part, does not worry that its quality problems influence safety yet.This pot of capacity utilization can reach 100%, and this pot is joined pot in the enamel, can avoid aluminum pollution, also improves the local flavor and the multi-purpose pot of cooking food.This pot of upper handle is contained in pot cover radially between the two curved teeth, avoids existing most pressure cooker handles to be contained on the perpendicular wall of curved tooth, because of the riveting handle set causes distortion, causes the cushion rubber gas leakage of dripping in early days at the handle place.This pot of upper and lower handle, miniature lever member all improve to some extent, and make it handy, and is durable, and easy-maintaining.This pot of combination valve can be used for transforming existing traditional pressure cooker, makes it when " error state " uses, avoids exploding, and can realize joining multiple cooking stove and can close fire automatically.

Known existing pressure cooker instructions for use is high and loaded down with trivial details, never allows to use down at " error state ", but in fact is difficult to accomplish fully.Pressure limiting valve can fly out and hurt sb.'s feelings in addition, Wu Hegai, the safety device of uncapping.Therefore in use blast frequently or scald people's accident (attached " Xiao expense person newspaper " reported), so pressure cooker is miniaturization always.Also have handle perishable, screw of handle easily rust is dead, inconvenient maintenance etc.

Task of the present invention is: at pressure limiting valve, safety valve, He Gai, the security of uncapping, automatically close fire, avoid aluminum pollution, multi-purpose pot, simplification using method, guarantee aspects such as safe, handy, durable, adopt new and existing advanced technology scheme.In also being, large-scale pressure cooker manufacture and design preparatory condition.And find out traditional pressure cookers a large amount of in user's hand, blastproof remodeling method.Also to realize conventional multiple lasting thermal source cooking stove, join the pressure cooker use and can close fire automatically.

Below in conjunction with accompanying drawing embodiment of this pot is described.

Fig. 1, this pot front view.

Fig. 2, this pot vertical view.

Fig. 3, this pot combination valve.

Fig. 4, combination valve Anti-stop cover vertical view.

Fig. 5, this pot close lid, the safety device of uncapping.

Fig. 6, Fig. 5 A-A profile.

Fig. 7, the slide plate vertical view.

Fig. 8, the piston seat upward view.

Fig. 9, this pot upper handle upward view.

Figure 10, this pot lower handle vertical view.

Figure 11, this pot lower handle side view.

Figure 12, this pot pressure closes fiery starter.

Figure 13, firearm is closed in this pot cock.

Figure 14, this pot air door closes firearm.

Fig. 1 and Fig. 2 are this pot front view and vertical view, and the combination valve structure on it presses safety valve to be made up of pressure-limiting safety valve with showing as Fig. 3, and the former and the latter have dual-use function, and the former is at skin, in the middle of the latter is rolled in.Existing pressure cooker also refills safety valve after the dress pressure limiting valve, and the one, easily stifled because of the valve opening of pressure limiting valve is little, so refill safety valve; The 2nd, the safety valve of being adorned is meltable chip, once perforation, just trample on a pot liquor, also is tired of in processing, and institute is so that a little safe pressure Ding Degao, and as lowly fixed, it is too frequent to bore a hole, the use of falling the overslaugh; The 3rd, the fuse sheet quality is difficult to be grasped, the safe pressure narrow range, the difficult realization.This combination valve is highly sensitive, and wave amplitude is little, and valve opening is big, and anti-block apparatus is arranged again, and is not jet once subtracting fire during the superpressure exhaust, do not trample on food, can reuse.So pressure limiting valve that is to say safety valve; Show that pressing safety valve mainly is to show to press and realize closing automatically fire, but its latus rectum sectional area but is 7-17 times of the fuse sheet safety valve, and have by food capsid, short grained ability, have again and can prevent that the food bulky grain from entering the Anti-stop cover of the passage of valve, therefore be enough to do safety valve and use, promote safety with outer pressure-limiting safety valve.Combination valve by valve body [21], valve plug [33], plunger [24], big spring [22], show depression bar [28], medi-spring [30], little spring [32], steel washer [31], primary nut [7], large washer [27], Anti-stop cover [25], big nut [35], row pressure bar formations such as [8].The row pressure bar is pincerlike curved bar, resembles Fig. 1,2 they [8].Valve body flange [20] can be extended by valve body [21], but also the two is divided into two close-fitting combinations.The size of pressure-limiting safety valve latus rectum D according to the decision of pressure cooker the bottom of a pan calorific intensity, is a foundation with the bottom of a pan diameter, the bottom of a pan greatly then heating surface area is big, and promptly calorific intensity is big, and greatly then gas making speed of calorific intensity is fast, after pressure-limiting safety valve reached operating pressure, the speed of superpressure exhaust also will adapt with it.What the cooking food superpressure was discharged is not pure water vapor, is also carrying capsid, powder and the particle of food secretly, and the time of boiling is long more, and the many more thickness more of gas entrainment are also big more by the frictional resistance of valve opening and passage.Frictional resistance is directly proportional with effluxvelocity again, reaches a certain limit, and frictional resistance just increases with geometric progression, so row pressure valve opening and passage should have enough sectional areas, also wants to pass through food capsid and particle.The decision of this valve opening latus rectum parameter, to boil easily stifled food, as mung bean (capsid is arranged), lotus rice (being divided into granule during fragmentation), red bean (boiling powdering of a specified duration and pastel), sea-tangle (tablet), red date, dried mushroom soup classes such as (light weight are floating), be with water to pile pot, boil burnt to doing (being called for short " error state ") pot inner pressure maximum with very hot oven and be no more than maximum working pressure (MWP) 40% for spending.This pot of pressure-limiting safety valve is by this design, and in certain limit, the latus rectum D of valve directly increases at the bottom of with pressure cooker and increases, and this bottom of a pan directly that is to say this pot specification, the abbreviation type is a unit with cm, and respective volume is unit with L, this pot: special small-sized (16,18,2-3L), D=15 ± 1 (mm); Small-sized (20,22,24,26,4-l0L) D=20 ± 2; Medium-sized (28,32,36,40,13-35L), D=30 ± 3; Large-scale (44,48,52,56,45-100L), D=40 ± 4; Super-huge (60,64,68,72,120-200L), D=50 ± 5.When specification is big more by that analogy.This pot of specification can be made into any even number or odd number.This valve passage is a ring-type, and its sectional area is 1.1-1.2 a times of latus rectum D cross section; This valve has pressure releasing hole [34] 4-5-6 at the top, in order to avoid row pressure jeopardizes the person.The pressure releasing hole single hole can pass through the big particle of 4-5mm, and each hole sectional area adds up to 1.2 times of latus rectum D sectional area.

Show and press safety valve latus rectum size to show that to satisfy depression bar [28] intensity is as the criterion,, show that the depression bar diameter between 6-12mm, increases with the pressure-limiting safety valve latus rectum according to the variation of pressure-limiting safety valve latus rectum D.Plunger [24] is that air-tightness cooperates with the inner orifice of valve plug [33], and medi-spring [30] is free body when not working, and little spring [32] is to keep plunger [24] to be parked in sealing station at ordinary times, and the weight of balance plunger assembly is shown the sensitivity of depression bar [28] with raising.Little spring [32] also has an effect, and when the cooling of pot internal cause produced negative pressure, little spring just sank to being compressed because of plunger is subjected to atmospheric pressure, plunger is moved down in the disengaging sealing station pot just communicate with atmosphere, eliminates negative pressure.During the artificial row pressure of this combination valve, row pressure bar [8] flicking down.But do not advocate artificial row pressure, secondly preferably cooling step-down naturally is that water drenches step-down.Because in the steam that artificial step-down is discharged, generate a kind of carcinogen chloroform, the people breathes harmful.The hypomere of plunger [24] is flat, and convenient twisting taken off primary nut [7] so that mounting or dismounting are cleaned.There are [26] two of pressure releasing holes, aperture 6-7-8mm in valve plug [33] middle part.

Uniform anti-blocking air channel [23] 4 roads, combination of valve body lower surface, groove depth * wide=4 * 4 ± 1 (mm), Anti-stop cover [25] also is housed under the valve body, its internal diameter is than the big 7mm of valve body external diameter, do not allow the food greater than 4mm enter in the cover, the cover bottom has 4mm big hole 6-7, is used for observing the cleaning and the water that disappears in the cover, also uses for row pressure.The internal diameter of cover has 4 guidance tape muscle [37], overlooks as Fig. 4, is used for waling the valve body wasp waist part.Combination valve most sinks in the pot cover, makes more attractive in appearance.

The pot cover height also is one of pressure cooker safety factor, do not pile pot in the hope of safety if only require user's cooking food, be insecure, this pot of pot cover middle part inner surface is 1/4 of a pot footpath size to pot height of mouthful line, keep certain volume space, surpass a pot mouthful line and charge into pot cover in case the user steams, boils swell thing such as rice cake, beans etc.As this thing happens, just Anti-stop cover work, the main row pressure feeder connection of Anti-stop cover up, the expansion of solids thing is difficult to reach the top and shuts passage, during as rare thick thing admission passage, because of passage has a fixed gap, can discharge outward.

Because of this combination valve uses down at " error state ", pot inner pressure also is no more than maximum working pressure (MWP) 40%, so this pot maximum safety pressure power is designed to 1.3-1.4 doubly to maximum working pressure (MWP).And pressure-limiting safety valve begins pressure at expulsion is 1.05 times of maximum working pressure (MWP), shows that the pressure at expulsion of pressing safety valve is 1.1 times of maximum working pressure (MWP).

This pot of breakdown pressure is divided into taking off and covers two kinds of pressure and pot body radial crack pressure, and the former is decided to be 2 times of this pot safe pressure, and the latter is decided to be 3 times of this pot safe pressure.Why again and again existing traditional pressure cooker (revolving type) blast, mainly is not can do with aforesaid " error state " to use, and this pot addresses this problem from design, so breakdown pressure there is no need Ding Detaigao, in order to avoid increase cost.The aspect is not properly settled as anti-blocking explosion-proof problem in addition, and the intensity of pot is high more, and it is just big more to destroy the loss that causes.

Another effect of showing the valve rod [28] of pressing safety valve is exactly when rising to selected operating pressure, drives starter [5] pass fire, and like this, it is synchronous with pot inner pressure both to have guaranteed to close fire, makes things convenient for again with multiple cooking stove and can both realize closing automatically fire.As burn faggot, and be manually to fuel, need not adorn starter, just reaching required pressure, heating ceases fire.Do not occur as there being " error state ", the not jet soup that do not overflow of use combination valve, pot cover and valve are difficult for dirty, as because of using error to cause jet spray soup, then will inspect combination valve and piston [54] (Fig. 5), just there is foul to clean afterwards.Normally use at ordinary times, only look and see two valves, not dirtyly just can.

This pot of combination valve can be used for improving existing traditional pressure cooker (revolving type), can cancel the fuse sheet safety valve, if any rubber safety valve also cancellation in the lump, seal its valve opening, thereby also can avoid blast malfunctioning because of fuse sheet or that ageing of rubber causes, the trouble of also avoiding the leading perforation of fuse sheet frequently to cause.The pressure cooker that just has part factory to make produces shear stress and flexure stress to cushion rubber, and the blast that causes sometimes then needs the safe permanent seal cooling gasket cement of pressure cooker circle of adapted patent applied for to avoid, and this kind cushion rubber is when selling in the lump with combination valve.Existing pressure side pot uses this valve, also can join automatic pass ignition system and realize that joining multiple cooking stove closes fire automatically.

In the standard JIS S 2051-85 of Japan's " family expenses pressure cooker and steamer ", the 72nd page of accompanying drawing 2 has three kinds of pressure limiting valves, be " pressure regulation device " among the figure, (1) plants the weights formula is adopted by China, (2), (3) kind is that pressure limiting valve divides combination with showing splenium, and these two kinds of valve problems are: one, inconvenience is manually exitted; Two, can not eliminate negative pressure in the pot (pot in drop to room temperature by high temperature, contraction of gas causes negative pressure), the difficulty of uncapping will reheat, and the user differs to establish a capital and understands like this and do, also inconvenience; Though three, the valve opening latus rectum is bigger, laterally pressure releasing hole is still aperture, by food slag seed ability; Four, show that the splenium branch just shows pressure, do not have the row pressure effect, also do not have pressure automatic control to close fiery device; Five, there are not anti-blocking structure or device; Six is the same with first kind of pressure limiting valve, is general-purpose type, is not the latus rectum according to the bottom of a pan calorific intensity valve design.So its function still belongs to the category of existing pressure cooker safety valve, just, lack operability owing to there is first and second problem.

Fig. 5 closes lid for this pot, the safety device of uncapping, by piston [54], piston seat [55], packing ring [56], spring [57], split pin [59], nut [61], last cover [58], three fork arms [60], pin [62], packing ring [63], slide plate [13], cover plate, [51], bolt [65] (Fig. 9), nut with cover [14] is (Fig. 2), door bolt nail [64], spring [50], upper handle [11], lower handle [12], seat board [70] (Figure 10) wait the parts composition.The fixing means of last cover (58) is: the cover top has crisperding to collude the outer fissure that nut spy into is equipped with; There is anti-limit [52] both sides, lower surface to overhanging, with the prong of upper handle anti-limit are pushed down.There is the shirt rim seat board both sides, and overhead kick is arranged on the limit, with the lower handle alloying.During the work of this device, the pot internal gas pressure reaches authorized pressure and just promotes door bolt nail [64] in piston [54], three fork arms [60] and the upper handle [11], door bolt nail foot just injects in the hole of seat board [70] of lower handle [12] (seeing Figure 10,11), fastenes lower handle and makes it and can not uncap.When closing lid when not in place, piston is pressed to down by three fork arm upper arm and is broken away from sealing station, the groove discharge of steam from the piston rod during heating, and pot inner pressure is controlled in below the regulation.When closing lid when putting in place, lower handle seat board [70] (Figure 10) stops slide plate [13] (see figure 6) to make slide plate towards the outside slippage 3-4mm of vertical upper handle.Meanwhile, inject the perpendicular arm of three fork arms of slide plate inclined hole, passed about 2mm by the inclined hole of slide plate [13] towards the pot cover direction, the upper arm of three fork arms is just raised 3-4mm up, spring [57] is just raised piston, make it to enter sealing station, the foot of this moment door bolt nail [64] does not inject in the hole of lower handle seat board [70] (Figure 10) as yet, heating back pot inner pressure is raised to a certain degree, and the piston pressurized raises, and drives three fork arm upper arm, its transverse arm just forces down door bolt nail [64], allow door bolt nail lower end inject in the hole of lower handle seat board [70], upper and lower handle is latched in together, make it and to uncap.When closing lid (being that upper and lower handle does not line up) not in place, inject the perpendicular arm of three fork arms of slide plate [13] inclined hole, blocked (promoting slide plate) by the inclined hole of slide plate, make the top of three fork arms break away from sealing station to piston rod toward pressing to piston by spring [65].Raise with the restriction pot inner pressure.Depress the power that door bolt nail [64] injects the lower handle base plate hole, be designed to 0.5N, piston diameter D1 increases with the pot type in certain limit, and Ben Guote is small-sized and small-sized: D ₁=17 ± 2 (mm); Medium-sized: D ₁=30 ± 3; Large-scale and super-huge: D ₁=47 ± 4; Again when more large-scale extension by that analogy, various specification sees for details in " combination valve " literary composition.

China GB13623-92 aluminum pressure cooker new standard is worked out with reference to Japanese aluminum pressure cooker standard, closes lid, the safe pressure of uncapping is 5kpa. like this, and the pressure cooker of a bite 20cm presses sum to reach 157N (16kgf) in the pot cover cross section; The pressure cooker of a bite 26cm presses sum to reach 265.5N (27kgf) in the pot cover cross section, with user experience, use existing pressure cooker, and is full slightly as soup, takes off pressure limiting valve after the chilling step-down, uncap just spray soon gas, a pot interior soup also can waft bold and vigorous scald into.So close lid, the safe pressure of uncapping decides the still difficult safety of 5kpa, in the more difficult adaptation, large-scale pressure cooker.This pot close lid, the safe pressure of uncapping, be that for it, unit is this pot of kpa. with P according to the size design of making a concerted effort of pressing in the pot cover cross section: special small-sized and small-sized, P≤2.5: medium-sized P≤0.75: large-scale and super-huge, P≤0.3: usefulness adjustment piston diameter D ₁Adapted to.Show that the pressure in the pot has or not because show depression bar on this pot of combination valve in addition, Gu Hegai not in place and when uncapping the side of pressure, pot cover cross section sum be controlled at 40-120N (about 4-12kgf).Reduce and close along with the increase of pot type, in the time of the safe pressure of uncapping, satisfy the power that the shuts 0.5N that can not uncap again, institute is so that the diameter of oversize piston, thereby increases the pressurized cross section of piston, with the satisfied power that shuts.

As for the method for testing of the security of uncapping, the 6th page of 6.2.7 of GB13623-92 5-is decided to be pot inner pressure when 5kpa, can not uncap with the 100N pulling force.The sealing that the sealing pair of pressure cooker constitutes is interference fit and cushion rubber self-locking and usefulness.These members have tolerance range when making, also have foozle, when some cushion rubber and the assembling of some pressure cooker, oiling can close lid reluctantly, uncap.Same cushion rubber, the new magnitude of interference were greater than using, and the resistance of therefore uncapping is a parameter, even 100N power can not be uncapped during test, but big as sealed increscence amount, pressure cooker is completely without interior pressure, and 100N does not open lid yet.Otherwise cushion rubber has been used a period of time, produces permanent deformation, and the magnitude of interference is little or 0, or negative, though pot inner pressure 〉=5kpa then, the power of 100N still can be uncapped.So this pot adopts the door bolt nail upper and lower two handles door bolt extremely together, gets rid of the extraneous factor influence.Safe pressure in this pot of pot of uncapping reduces though increase with the pot type, is a parameter, guarantee the power that shuts of 0.5N, thus with the method for adjustment piston diameter (function) to adapt to it.Air discharge duct [53] 3-4 road is arranged on the piston rod, and piston lower surface also has cross air discharge duct (Fig. 8).

Figure 12 closes fiery starter for this pot pressure, is made of the adjustment part of operating pressure pointer [88], dials [86], band handle nut [87] etc.; Form energy storage section by outer tube [80], piston [82], spring [83], interior cover [84], flexible axle [4], end cap [85] etc.; The front end of outer tube [80] vertically has the bucket kerve, and pincerlike flat spring [6] is housed in the groove, uses flat key [89] that flat spring is fixed again.The lower end of flexible axle [4] is closed firearm with corresponding supporting cooking stove and is connected.Do not discuss the large, medium and small specification of this pot, the leaf spring of starter [6] is injected in the steam vent of combination valve (seeing Fig. 1, Fig. 2) at once.

Cook, congee, stew or boil difficult crisp food such as soya bean, peanut, corn etc., all use operating pressure 150kpa; Boil vegetables, hot old food 50kpa; Boil water and use 25kpa, so further the fuel saving meets hygienic requirements again.During work as adjusting pressure, just band handle nut [87] is unscrewed, then the needle point of pointer [88] is aligned the relevant pressure scale of dial plate, fastening nut again, just the depression bar that shows on the combination valve is raised when producing air pressure in the pot, by primary nut [7] pointer [88] is propped up (Fig. 3, Figure 12), dial plate [86] also rises thereupon, (Figure 12) break away from up to dial plate below lobe [81] with piston [82] top, sleeve pipe [80] bottom just shifted piston onto by spring [83], and pulling flexible axle core drives the pass firearm that is contained on the cooking stove and closes fire.

This pot of pass firearm has cock-type and throttle type, and cock-type (Figure 13) is made up of cock [91], brace [93], flexible axle seat [95] etc.Cock is contained on the tracheae of gas furnace or on the oil pipe [96] of petroleum furnace, flexible axle seat [95] is contained on the grate, the axle core of flexible axle [4], and brace [93] is hinged with the wire nail on the cock shank [92].Flexible axle telescopic adjustment pipe [94] is arranged, with the switch angle of adjustment cock shank on the flexible axle seat.

Starter and cooking stove connect together; during use the leaf spring of starter [6] (Fig. 1; Fig. 2) inject in the steam vent on combination valve top; then cock shank [92] is down connect; pulling flexible axle core; the upper end of flexible axle core just spurs the piston [82] of starter (Figure 12); spring [83]; compressed energy-storage; till dial plate lobe [81] falls the seized piston top, the pot in reach pressure selected after, show that depression bar [28] (Fig. 3) just (Figure 12) lifts dial plate [86]; make the lobe under the dial plate break away from piston; spring just promotes piston, and flexible axle is upwards drawn, and cut-out tap is to cease fire.

Throttle type closes firearm (Figure 14) to be made up of square or rectangular air duct [101], air door plate [102], crank axle [103], brace [93] and flexible axle mount pad [104].Airduct is contained in the below of cooking stove [105], and the transverse axis of crank axle traverses airduct from horizontal direction, and air door plate is fixed in airduct on the transverse axis of crank axle.Wire nail on the cranking arm of axle core, the brace [93] of flexible axle [4] and crank axle is hinged.Telescoping tube [94] is arranged on the flexible axle mount pad, be used for the switch angle of damper plate.The running of using method and starter is the same with cock pass firearm.

Cook, cook congee, stew husky bone soup etc. at ordinary times; use 150KPa pressure; automatically after closing fire; got final product in 5-10 minute with the stove insulation, the rural area is burnt bavin, when grass uses this pot, need not be adorned automatic pass ignition system; when reaching operating pressure, heating (sees the pressure scale that shows that depression bar rises); can cease fire with the kitchen range insulation, save the time of little fiery pressurize, boil difficult crisp food and also shorten the time than the pressure cooker of operating pressure 100kpa.

Along with the development of society, people pay attention to gradually for the aluminum pollution that uses aluminum pot to produce, and some producer makes pressure cooker with stainless steel, but the cost height finds no sale.Also some user pot peculiar smell that stewed that feels the stress is not very good eating.This pot is added a cover culinary art because of the operating pressure height so join the interior pot of enamel, and following benefit is arranged like this.1, avoids aluminum pollution; But 2 multi-purpose pots, promptly polygamy is a little interior pot, and a bite pressure cooker can use by turns, economy.Pot has drop handle, loam cake, interior the bottom of a pan end to have 3 protruded stigmas uniform in the enamel, and interior pot is tapering slightly, convenient overlapping collection.

This pot of two counter sinks installing handle do not come outbreak out, and are what extrude, keep thickness (seeing Fig. 2 [15]) at the bottom of the counter sink increasing bonding strength, and are screwed, and easily tighten when pine is advised.

This pot of upper and lower handle and miniature lever, the thinnest size of structural thickness is no less than 4mm.All hold-down screws of this pot all with in the charcoal stainless steel make heat treatment hardness

Upper and lower handle is overlooked and is wasp waist shape, grabs well and takes.

Claims (5)

1, pressure cooker, safety automatic multi-function pressure cooker (revolving type) particularly, feature is: operating pressure 25-150kpa, adjustable, be fixed with combination valve and He Gai on the pot cover, the safety device of uncapping, be furnished with pressure and close fiery starter, the pass firearm of the flexible axle of this device and corresponding multiple cooking stove is fitted together, and constitutes the pot inner pressure automatic control and closes ignition system.When this pot is joined the electrothermal furnace seat, also available pot inner pressure automatic control outage, also available temperature control outage.Spill is made in this pot of the bottom of a pan also can be supporting with the electrothermal furnace seat of existing electric pressure cooking saucepan, also can specially join the electrothermal furnace seat.This pot is joined pot in the enamel, and lid is arranged, and drop handle is arranged, and the pot body is tapering slightly.This pot of pot cover middle part highly is 1/4 of a pot footpath size.This pot of upper handle is contained in pot cover radially between the two curved teeth, the counter sink drawing.This pot of upper and lower handle is overlooked and is wasp waist shape; All handle hold-down screws, carbon stainless steel manufacturing in all using, hardness

This pot of combination valve can be used for transforming existing traditional pressure cooker, makes it when " error state " uses, avoids exploding, and can realize joining multiple cooking stove and can close fire automatically.

2, according to this pot combination valve (Fig. 3) of claim 1, feature is: press safety valve to be made up of pressure-limiting safety valve with showing, the former is at skin, and the latter is in the centre.Member has valve body [21], valve plug [33], big spring [22], shows depression bar [28], medi-spring [30], little spring [32], primary nut [7], row pressure bar [8], large washer [27], Anti-stop cover [25], steel washer [31] and big nut [35] etc., be fixed on the pot cover [3], this valve has pressure releasing hole [34] 4-5-6, at the big nut top.The size of pressure-limiting safety valve latus rectum D is that Ben Guote is small-sized according to the decision of pressure cooker the bottom of a pan calorific intensity: 16,18 (cm, down together), D=15 ± 1 (mm, down together); Small-sized: 20,22,24,26, D=20 ± 2; Medium-sized: 28,32,36,40, D=30 ± 3; Large-scale: 44,48,52,56, D=40 ± 4; Super-huge: 6O, 64,68,72, D=50 ± 5.When specification is big more by that analogy.There are [26] two of pressure releasing holes, aperture 6-7-8mm in the valve plug middle part.Plunger [24] hypomere is flat, and uniform anti-blocking air channel [23] 4 roads, combination of valve body lower surface also are equipped with Anti-stop cover [25] under the valve body.Combination valve most sinks in the pot cover.This pot of specification can be made into any even number or odd number.

3, this pot according to claim 1 close lid, the safety device (see figure 5) of uncapping, form by piston [54], piston seat [55], packing ring [56], spring [57], split pin [59], nut [61], three fork arms [60], pin [62], packing ring [63] slide plate [13] (Fig. 5, Fig. 6, Fig. 7), cover plate [51] (Fig. 5, Fig. 9) door bolt nail [64], spring [50], upper and lower handle [11], [12], seat board [70] parts such as (Figure 10, Figure 11).There is the shirt rim seat board both sides, and overhead kick is arranged on the limit, with the handle alloying.Air discharge duct [53] 3-4 road is arranged on the piston rod, and there is cross air discharge duct [66] the piston lower end (Fig. 8).Piston diameter D ₁, increase this pot with the pot type in the-scope of Dinging: special small-sized and small-sized, D ₁=17 ± 2 (mm, down together); Medium-sized, D ₁=30 ± 3; Large-scale and super-huge, D ₁=47 ± 4.Again when more large-scale extension by that analogy.

4, this pot according to claim 1 closes fiery starter (Figure 12), is made of the adjustment part of operating pressure pointer [88], dials [86], band handle nut [87] etc.; Form energy storage section by outer tube [80], piston [82], spring [83], interior cover [84], flexible axle [4], end cap [85] etc.; The front end of outer tube [80] vertically has the bucket kerve, and pincerlike flat spring [6] is housed in the groove, uses flat key [89] that leaf spring is fixed again; The flexible axle lower end is closed firearm with corresponding supporting stove, kitchen range and is connected.Do not discuss this pot size specification, the flat spring on the starter [6] is injected in the steam vent of combination valve at once.

5, according to the starter of claim 4, when supporting, closing firearm is cock-type with gas furnace or petroleum furnace, the tracheae [96] that is contained in gas furnace go up or the oil pipe of petroleum furnace on (Figure 13), the cock shank has a wire nail on [92], and is hinged by the axle core terminal of brace [93] and flexible axle [4].Cock shank top has flexible axle seat [95] and stove and accessory to fix, and the flexible axle seat has flexible axle telescoping tube [94], is used for the switch angle of regulating cock handle.

Starter and coal stove, when the coal kitchen range is supporting, closing firearm is throttle type, is contained in the below (Figure 14) of coal kitchen range [105], throttle type closes firearm to be made up of square or rectangular air duct [101], air door [102], crank axle [103], brace [93] and flexible axle mount pad [104].The transverse axis of crank axle traverses airduct from horizontal direction, and air door plate is fixed on the transverse axis of airduct introversion arbor.Wire nail on the cranking arm of axle core, the brace [93] of flexible axle [4] and crank axle is hinged.Telescoping tube on the flexible axle mount pad is used for the switch angle of damper plate.

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