CN105615636A - Protective energy-saving cover for boiling pressure cooker - Google Patents

Abstract

The invention provides a protective energy-saving cover for a boiling pressure cooker. The protective energy-saving cover comprises a cooker cover 1 provided with a cover handle, a pressure limiting valve and other safety components, wherein the cooker cover 1 is provided with a casing 2 formed by a metal shell 3 made of sheet metal and a side encircling sleeve 4 made of plastics, the casing 2 is provided with a valve position hole 21, a relief groove 22 and other relief holes and grooves, each of the holes and grooves is provided with a heat insulation rubber cover, the casing 2 matches with the cooker cover to define a cavity 23, a gap is reserved between the lower end of a hole cover 31 and the cooker cover 1, the lower end of the hole cover 31 is provided with an elastic rubber gasket 36, an overflow port 34 is arranged at the lower end of the rubber gasket 36, and the side encircling sleeve 4 is provided with a flow discharge opening 41 and a flow guide groove 42. The protective energy-saving cover for the boiling pressure cooker has a function of safety protection and the effects of energy conservation and heat preservation without affecting safe use of the pressure cooker, is convenient to use, and has popularization and application value because of contribution to energy conservation and emission reduction.

Description

Pressure cooker protection energy saving lid

The divisional application that the application is the applying date, and to be JIUYUE in 2011 2 days, application number be 2011102568684, denomination of invention is pressure cooker protection energy-saving cover.

Technical field

The present invention relates to a kind of pressure cooker protection energy-conservationLid��

Background technology

Pressure cooker that the public is everlasting on gas-cooker or electromagnetic oven to use day (referred to hereinafter as: pressure cooker or ordinary high pressure pot) mostly it is made up of aluminium alloy or stainless steel material, many facilities are brought to the life of people, relative to automatic electric pressure cooker, ordinary high pressure pot can arbitrarily carry out firepower regulation and control at any time in the process of cooking, and has the use advantage that it is certain. But, the metal surface exposed area of ordinary high pressure pot is big, the particularly pot cover of pressure cooker, except fraction is covered by the handle of pot cover, metal package major part exposes, in the process of cooking, the pot cover surface exposed is in relatively-high temperature state, and because its surface temperature is high, when human body imprudence is touched on it, easily by boiling hot pain or scald; The deficiency become apparent from is, cooks in process at pressure cooker, no matter adopts gas-cooker or electromagnetic oven, the pot cover of the pressure cooker of high temperature is always at outside radiating state, again because its surface temperature is high, exposed area is big, and dispersed heat is many, particularly in the winter that ambient temperature is relatively low, pot cover is big with the temperature difference of surrounding, and faster, the heat of loss is more in heat radiation, what be both unfavorable for when cooking is energy-conservation, is also unfavorable for pressure cooker insulation after the heating that stops cooking.

Summary of the invention

It is an object of the invention to provide a kind of pressure cooker protection energy-conservationLid, the protection of the ordinary high pressure pot employing present invention is energy-conservationLid, make human body avoid touching pressure cooker cap surface in cooking, there is more perfect safety protection function, and there is more preferably energy-conservation and heat insulation effect.

The object of the present invention is achieved like this, and described pressure cooker protection is energy-conservationLid, including there is lid handle and being furnished with the pressure limiting valve of bonnet and the pot cover of other safety member; It is characterized in that: pot cover is provided with the clamshell for covering its outer surface; Described clamshell is overlapped combination by metal-back and gusset and constitutes; Described metal-back is made up of metallic sheet stock, and described gusset set is made up of plastic material; Described gusset set is annular, its outer circumferential side and inner circumferential side, described metal-back lower end close-fitting, so that both mutual closely fits connect; Described gusset set has suitable width, so that having suitable spacing between metal-back inner circumferential side and the circumferential lateral surface of pot cover; The inner circumferential side of described gusset set is sealed on the correspondence position of pot cover outer circumferential side; Described metal-back is provided with the hole, valve position for dodging pressure limiting valve bonnet; Hole, described valve position is the flanging bore with suitable height, has suitable steam discharge space between its sidewall and all sides of bonnet, and its lower surface is sealed on the correspondence position of pot cover outer surface; Described metal-back and gusset put the slot to make way being provided with for dodging lid handle, and described slot to make way has the sidewall of suitable height, and its lower surface is sealed on the outer surface correspondence position of pot cover and lid handle; Clamshell is additionally provided with the hole slot of stepping down for dodging other safety member on pot cover, so that the clamshell being set on pot cover does not affect the normal use of this safety member, and this hole slot of stepping down has the sidewall of suitable height, its lower surface or inner face are sealed on pot cover outer surface; Except for except meeting closely sealed needs between the above-mentioned partial outer face allowing bit architecture and pot cover and lid handle and contacting with each other, between inner surface and the outer surface of pot cover of described metal-back, there is suitable spacing, so that described clamshell surrounds the cavity of closing together with pot cover. Supplemental instruction: generally, high-pressure pot cover is furnished with the structure with voltage stabilizing aerofluxus or the disappointing function of superpressure or parts (being referred to as: safety member) that include pressure limiting valve, as except arranging pressure limiting valve, pot cover is also equipped with at least one relief valve with the disappointing function of superpressure, and offers at least one safe aperture deforming protrusion for holding high-pressure cooker sealing ring because of abnormal pressure at pot cover avris; Other safety member on the pot cover of above-mentioned record refers to the relief valve matching in a known manner on pot cover except pressure limiting valve or/and safe aperture.

The purpose of the present invention is it is also possible that realize, and described pressure cooker protection is energy-conservationLid, it is characterised in that: hole, described valve position lower end side is provided with the borehole jack with heat-blocking action with its phase fit, and described borehole jack is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover outer surface; The lower end side of described slot to make way is provided with the trough rim set with heat-blocking action with its phase fit, and described trough rim set is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover and lid handle outer surface; On clamshell, lower end side or interior side for dodging the hole slot of stepping down of other safety member on pot cover is provided with and is nested the gum cover with heat-blocking action closed with this hole slot of stepping down, and the lower surface of this gum cover or inner face are sealed on the relevant position of pot cover outer surface.

The purpose of the present invention is it may also is that realize, and described pressure cooker protection is energy-conservationLid, it is characterised in that: the inwall of described metal-back is provided with the liner with heat-blocking action being made up of foamed plastic material; Between the matching surface of described liner and described metal-back bonded to each other so that both can be mutually closely sealed or bonding integral; There is between described liner and the outer surface of pot cover suitable spacing.

The protection of the pressure cooker adapted present invention is energy-conservationLid, human body not easily directly touches the pot cover surface of high temperature. The present invention is energy-conservationLidIn clamshell, the inner surface of metal-back therein does not directly contact with pot cover outer surface, has suitable spacing between the two, can make the surface temperature surface temperature lower than pot cover of clamshell, and human body touches clamshell surface and will not be burned, and makes the present invention energy-conservationLidHuman body is had good safety protection function.

The present invention is energy-conservationLidMake clamshell coordinate the cavity surrounding closing with pot cover, be filled with in this closing cavity heat conductivity low and not with the air of extraneous convection current, make clamshell that institute's structure sets and cavity have good insulating characteristics. Therefore, clamshell in the present invention can significantly slow down through the radiating rate on pot cover surface, and makes pressure cooker reduce heat loss in the process of cooking further, is conducive to accelerating the process of cooking of pressure cooker, shorten and cook heat time heating time, so that pressure cooker has good energy-saving effect when cooking; Further, because pot cover obtains the adiabatic covering of clamshell, making this pressure cooker have better heat-insulating property and heat insulation effect, pressure cooker after the cessation of the heating, can obtain longer temperature retention time, reduces the chance reheated and is also beneficial to energy-conservation.

The present invention is energy-conservationLidIn clamshell on the hole, valve position that sets of institute's structure and and bonnet between steam discharge space, clamshell is made to cover the normal exhaust without influence on pressure limiting valve on pot cover, thus efficiently solving the problem easily affecting pressure cooker safe handling carrying out protecting and energy-saving structure design is encountered on pot cover, the protection making the present invention is energy-conservationLidPressure cooker supporting the use and is capable of the more perfect safety protection function of human body and obtains better energy-conservation and heat insulation effect, failing reasonably to carry out on high-pressure cooker cover to protect and energy-saving structure design and the deficiencies such as safeguard function is poor and energy-conservation and heat insulation effect is not good enough that make existing pressure cooker easily also exist when cooking use thus overcoming prior art.

The present invention is energy-conservationLidIn the main body of clamshell and metal-back adopt sheet metal to make, the protection making the present invention is energy-conservationLidRational in infrastructure durable, safe and convenient to use, and can support the use with other thermal insulation member being arranged on pressure cooker, and there is better safety protection function and energy-conservation and heat insulation effect, offering convenience to the use of cooking of pressure cooker, it is conducive to energy-saving and emission-reduction to have application value.

Accompanying drawing explanation

Fig. 1 is the main organigram (not shown pot cover 1) of the embodiment of the present invention.

Fig. 2 is the right view of Fig. 1.

Fig. 3 is the left sectional view of Fig. 1.

Fig. 4 is the upward view (locally) of Fig. 1.

Fig. 5 is I zoomed-in view of Fig. 1.

Fig. 6 is overall fitting relation schematic diagram (locally) of the present invention.

Fig. 7 is the top view (locally) of Fig. 6.

Fig. 8 is the organigram of the embodiment of the present invention two.

Fig. 9 is the left sectional view of Fig. 8.

Figure 10 is I zoomed-in view of Fig. 8.

In figure: pot cover 1, bonnet 11, cap aperture 12, lid handle 13, relief valve 14, clamshell 2, hole, valve position 21, slot to make way 22, cavity 23, safety vent 24, metal-back 3, borehole jack 31, trough rim set 32, gum cover 33, overfall 34, ring set groove 35, cushion rubber 36, gusset set 4, relief port 41, guiding gutter 42, liner 5, profit cup 7, insert ear 71, jack 72, cap 8, cage apertures 81, cap shoulder 82.

Detailed description of the invention

Below in conjunction with drawings and Examples, the present invention is described in detail.

Embodiment one

The pressure cooker protection of the embodiment of the present invention one is energy-conservationLid(structure is shown in Fig. 1 to Fig. 7), including the pot cover 1 with lid handle 13, pot cover 1 arranges pressure limiting valve and the relief valve 14 with bonnet 11, and its construction features are in that: pot cover 1 is provided with the clamshell 2 for covering its outer surface; Clamshell 2 is overlapped 4 combinations by metal-back 3 and gusset and constitutes; Metal-back 3 is made up of metallic sheet stock, and gusset set 4 is made up of plastic material;

Above-mentioned gusset set 4 is annular, its outer circumferential side and inner circumferential side, metal-back 3 lower end phase close-fitting, so that both closely fits connections mutually; Gusset set 4 has suitable width, so that having suitable spacing between the circumferential lateral surface of metal-back 3 inner circumferential side and pot cover 1; The inner circumferential side of gusset set 4 is sealed on the correspondence position of pot cover 1 outer circumferential side;

Above-mentioned metal-back 3 is provided with the hole, valve position 21 for dodging pressure limiting valve bonnet 11; Hole, valve position 21 is the flanging bore with suitable height, has suitable steam discharge space between its sidewall and all sides of bonnet 11, and its lower surface is sealed on the correspondence position of pot cover 1 outer surface;

Above-mentioned metal-back 3 and gusset set 4 are provided with the slot to make way 22 for dodging lid handle 13, and slot to make way 22 has the sidewall of suitable height, and its lower surface is sealed on the outer surface correspondence position of pot cover 1 and lid handle 13;

Above-mentioned metal-back 3 is provided with the safety vent 24 for dodging relief valve 14, and safety vent 24 has the sidewall of suitable height, and its lower surface is sealed on the correspondence position of pot cover 1 outer surface;

According to other safety member arranged on pot cover 1, clamshell 2 is additionally provided with the hole slot of stepping down for dodging other safety member on pot cover 1, so that the clamshell 2 being set on pot cover 1 does not affect the normal use of this safety member, and this hole slot of stepping down has the sidewall of suitable height, its lower surface or inner face are sealed on pot cover 1 outer surface;

Except for except meeting closely sealed needs between the above-mentioned partial outer face allowing bit architecture and pot cover 1 and lid handle 13 and contacting with each other, between inner surface and the outer surface of pot cover 1 of metal-back 3, there is suitable spacing, so that clamshell 2 coordinates the cavity 23 surrounding closing with pot cover 1.

Hole, valve position 21 that on clamshell 2 in the present embodiment, institute's structure sets and and 11 weeks sides of bonnet between steam discharge space, make the gas discharged from pressure limiting valve without hindrance to circulate, and make the pot cover 1 after suit clamshell 2 not affect pressure cooker safe handling in heating process of cooking; Meanwhile, clamshell 2 makes the heat-delivery surface of pot cover 1 be able to effective adiabatic covering more comprehensively, and the surface temperature of clamshell 2 is significantly lower than the surface temperature of pot cover 1, so that human body is had good safety protection function by clamshell 2; And, owing to forming the cavity 23 of closing between clamshell 2 and pot cover 1, be filled with in it heat conductivity low and not with the air of extraneous convection current, clamshell 2 is made to have good heat-insulating property, significantly can be slowed down the radiating rate of pot cover 1, be conducive to accelerating the process of cooking of pressure cooker, shorten and cook heat time heating time, there is energy-saving effect; After pressure cooker stops heating, it is energy-conservation that clamshell 2 also makes the present invention protectLidThere is better heat insulation effect, make pressure cooker can obtain longer temperature retention time, reduce the chance reheated and be also beneficial to energy-conservation.

Energy-conservation for making the present invention protectLidBeing more easily performed application and have better result of use, on the basis of above-mentioned structure, the further structure of the present embodiment sets following structure, and its benefit is also stated subsequently.

Structure 1 further: the upper end week in above-mentioned hole, valve position 21 is along the lower edge not higher than pressure limiting valve cap aperture 12, so that the gas from cap aperture 12 ejection is not blocked by the inwall in hole, valve position 21.

Relative position relation between hole, valve position 21 and the cap aperture 12 of above-mentioned restriction, the gas of ejection from cap aperture 12 can be made to avoid being blocked by the inwall in hole, valve position 21 and make this gas avoid formation profit in hole, valve position 21, it is thus possible to guarantee the safe handling of pressure limiting valve normal exhaust and pressure cooker, be conducive to making the present invention keep good insulation effect and ease of use.

Structure 2 further: above-mentioned gusset set 4 is made up of the plastic material with suitable resilient. There is the gusset of suitable resilient overlap 4 tolerables and there is bigger foozle, and make it easier to form good mated condition with pot cover 1, the clamshell 2 handling on pot cover 1 can be made more convenient, and make cavity 23 closed state formed more good, be conducive to promoting the heat-insulating property of the present embodiment clamshell 2.

Structure 3 further: above-mentioned hole 21, valve position lower end side is provided with the borehole jack 31 with heat-blocking action with its phase fit, and borehole jack 31 is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover 1 outer surface; The lower end side of slot to make way 22 is provided with the trough rim set 32 with heat-blocking action with its phase fit, and trough rim set 32 is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover 1 and lid handle 13 outer surface; The lower end side of above-mentioned safety vent 24 is provided with the gum cover 33 with heat-blocking action with its phase fit, and gum cover 33 is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover 1 outer surface; On clamshell 2, lower end side or interior side for dodging the hole slot of stepping down of other safety member on pot cover 1 is provided with and is nested the gum cover with heat-blocking action closed with this hole slot of stepping down, and the lower surface of this gum cover or inner face are sealed on the relevant position of pot cover 1 outer surface.

Borehole jack 31, trough rim set 32, gum cover 33 and the above-mentioned gum cover that institute's structure sets, end edge in the hole slot of metal-back 3 can be made not direct and pot cover 1 exterior surface, the heat energy that can significantly slow down conducts the speed to metal-back 3 through pot cover 1, the temperature rise making clamshell 2 is lower, and promoting the heat-insulating property of the present embodiment clamshell 2 further, the protection making the present invention is energy-conservationLidThere is better safety protection function and energy-conservation and heat insulation effect.

Further structure 4: above-mentioned borehole jack 31, trough rim set 32, gum cover 33 and above-mentioned gum cover are made by the plastic material with suitable resilient, and its cross section is all in " H " shape.

Borehole jack 31, trough rim set 32, gum cover 33 and the above-mentioned gum cover be made up of elastic plastic material are conducive to allowing the foozle that metal-back 3 is bigger, metal-back 3 can be made to be easier to produce and advantageously reduce its production cost, it is also easy to make to obtain between clamshell 2 with pot cover 1 and presetting coordinates requirement, so that cavity 23 between the two keeps better closed state, so that the protection of clamshell 2 and the present invention is energy-conservationLidKeep good heat-insulating property and ease of use. And cross section in the borehole jack 31 of " H " shape, trough rim set 32, gum cover 33 and above-mentioned gum cover above-mentioned advantage can be made more prominent.

Further structure 5: the bottom of above-mentioned borehole jack 31 is provided with so that the overfall 34 that connects of hole, described valve position 21 and cavity 23. Gusset set 4 is provided with the relief port 41 matched with overfall 34, so that the profit not being vaporized flowed in cavity 23 and pot cover 1 surface from overfall 34 flows downward out from relief port 41.

Apply the pressure cooker of above-mentioned structure when it cooks use, if pot cover 1 surface that the fluid discharged bottom bonnet 11 is in hole, valve position 21 forms a small amount of or amount commonly profit, this profit can flow to pot cover 1 surface being positioned at cavity 23 from the overfall 34 that institute's structure sets, and make this profit avoid accumulating in hole, valve position 21, in order to avoid affect the normal exhaust of pressure limiting valve and the safe handling of pressure cooker; And the profit flowing on pot cover 1 surface in cavity 23 is easily completely vaporised, the gas formed after vaporization can be emerged from overfall 34, makes clamshell 2 keep good insulation effect and ease of use. If pot cover 1 surface that the fluid discharged bottom bonnet 11 is in hole, valve position 21 forms measuring more and making this profit fail to be completely vaporised after flowing to pot cover 1 surface being positioned at cavity 23 of profit, the relief port 41 that institute's structure sets can make the profit not being vaporized flow downward out from relief port 41 and avoid accumulating in cavity 23, make clamshell 2 keep better insulation effect and ease of use, and the centralized collection for profit provides advantage.

Structure 6 further: the exit position of above-mentioned relief port 41 is provided with has the profit cup 7 inserting ear 71 a pair; Metal-back 3 is provided with a pair jack 72 matched with slotting ear 71, makes profit cup 7 be articulated in the outside of metal-back 3 and the edge, downside of gusset set 4 and pot cover 1, to accept the profit discharged from relief port 41.

The profit cup 7 that institute's structure sets can accept the profit discharged from relief port 41, and makes this profit avoid overflow to the kitchen range top, makes the employing present invention protect energy-conservationLidPressure cooker cook use safer facility.

Further structure 7: the upper lateral part of above-mentioned gusset set 4 is provided with and overlaps 4 both sides and along its circumferentially extending annular guiding gutter 42 to gusset centered by relief port 41. Guiding gutter 42 is in the shape tiltedly low gradually to relief port 41 center from its two ends.

The guiding gutter 42 that institute's structure sets can block the profit being connected in cavity 23 and not being vaporized on pot cover 1 surface, this profit not being vaporized can be reduced contact or the holdup time with pot cover 1 surface, it is likely to the further profit heat-energy losses that causes of vaporization it is thus possible to reduce and is conducive to energy-conservation, and making the profit in cavity 23 be easier to flow downward out from relief port 41, the use making clamshell 2 is more convenient. And guiding gutter 42 to relief port 41 center gradually tiltedly low be easier to make in guiding gutter 42 profit flow downward out and drain, it is energy-conservation that this makes the present invention protectLidUse more convenient.

Structure 8 further: above-mentioned metal-back 3 is provided with the cap 8 matched with hole, valve position 21, and cap 8 is cylindrical and is made up of heat insulation plastic material; Cap 8 is provided with the cage apertures 81 for dodging bonnet 11, and the upper end of cage apertures 81 is closed state. Cap 8 is provided with takes on 82 with hole 21, valve position upper end week along mutually closely sealed cap. The preferred expanded polypropylene material of cap 8 is made.

The present invention is adopted to protect energy-conservationLidPressure cooker is after it stops heating, when needs enter keeping warm mode, the cap 8 that above-mentioned structure sets can directly be set in the hole, valve position 21 on clamshell 2, to block or to be enclosed in the heat dissipation channel on position, hole 21, valve position, heat loss can be reduced, to further enhance the heat insulation effect of the present invention. The cap shoulder 82 that institute's structure sets makes cap 8 have the effect better closing heat dissipation channel. With the cap 8 that expanded polypropylene material is made, there is the advantage that light weight is inexpensive and insulation effect is excellent.

Structure 9 further: above-mentioned metal-back 3 is made up of stainless sheet steel. Metal-back 3 in the present embodiment is preferably made with stainless steel metal sheet stamping, and relative to selecting other metal material, stainless steel material heat conductivity is relatively low, makes clamshell 2 have better heat insulating function, and it is energy-conservation to make the present invention protectLidThere is better safety protection function and energy-conservation and heat insulation effect.

Structure 10 further: the surface spraying of above-mentioned metal-back 3 has one layer of plastic cement coat with heat-blocking action. Heat insulation coat on metal-back 3 surface, makes metal-back 3 can be selected for the common metal light sheet material of more low price, and can strengthen the heat-insulating property of clamshell 2.

Structure 11 further: the inwall of above-mentioned metal-back 3 is provided with the liner 5 being made up of foamed plastic material; Between the matching surface of liner 5 and metal-back 3 bonded to each other so that both can be mutually closely sealed or bonding integral; There is between the outer surface of liner 5 and pot cover 1 suitable spacing. The preferred expanded polypropylene material of liner 5 is made.

The liner 5 that institute's structure sets has good heat insulating function, is conducive to strengthening the heat-insulating property of the clamshell 2 in the present embodiment, and the protection making the present embodiment is energy-conservationLidThere is more excellent safety protection function and energy-conservation and heat insulation effect. Suitable spacing is kept between liner 5 and pot cover 1, not only make to remain with the air adiabatic layer of suitable depth between clamshell 2 and pot cover 1 and make clamshell 2 have better heat-insulating property, and liner 5 can be made to avoid pot cover 1 surface with high temperature to contact, be conducive to improving the service life of liner 5, or reduce the liner 5 high temperature resistant requirement to adopted material. Liner 5 is made with expanded polypropylene material, makes the clamshell 2 of the present embodiment have the advantage that light weight is inexpensive and insulation effect is excellent.

Embodiment two

The pressure cooker protection of the embodiment of the present invention two is energy-conservationLid(structure is shown in Fig. 8 to Figure 10), energy-conservation in order to make the present invention protectLidFunction more perfect, with so as to be more easily performed and apply, on the basis of the embodiment of the present invention one, the further structure of the embodiment of the present invention two sets following structure, and its benefit is also stated subsequently.

Structure 1 further: between lower surface and pot cover 1 outer surface of above-mentioned borehole jack 31, there is suitable spacing; The lower side of borehole jack 31 is provided with around the pressure limiting valve ring set groove 35 of a week; The sheathed cushion rubber 36 with suitable resilient of ring set groove 35, has presetting juxtaposition metamorphose surplus between cushion rubber 36 and the corresponding surface of pot cover 1, can keep close-fitting state with the outer surface of pot cover (1). The cross section of cushion rubber 36 is in falling Y-shaped. Cushion rubber 36 lower side is provided with overfall 34.

Institute's structure sets on borehole jack 31 ring set groove 35 and the cushion rubber 36 arranged are conducive to allowing that borehole jack 31, trough rim set 32, gum cover 33 and aforesaid gum cover have bigger manufacture and mismatch error, also cavity 23 can be made to keep better closed state, so that clamshell 2 keeps good heat-insulating property and uses adaptability and convenience. The conventional apron that above-mentioned cushion rubber 36 can adopt cross section to be circle, comparatively speaking, cross section has and better uses adaptability in falling the cushion rubber 36 of Y-shaped, the cavity 23 enclosed between clamshell 2 and pot cover 1 can be made to keep better closed state, so that the present invention has better energy-conservation and heat insulation effect, and the present invention is made to have more reasonably anufacturability and ease of use on the whole. And the overfall 34 set by cushion rubber 36 lower side, it is also easy to make the oil-water collection in hole, valve position 21 flow to pot cover 1 surface from overfall 34, and make this profit avoid accumulating in hole, valve position 21, in order to avoid affect the normal exhaust of pressure limiting valve and the safe handling of pressure cooker, so that clamshell 2 keeps good heat insulating function and safety in utilization. The borehole jack 31 with ring set groove 35 that in the present embodiment, structure sets makes the pressure cooker protection energy-saving cover of the present embodiment have certain motility when practical application, as when actually used, can unload or not be set with above-mentioned cushion rubber 36, profit in the Shi Fawei hole, gap 21 that spacing between lower surface and pot cover 1 outer surface of then above-mentioned borehole jack 31 is constituted can flow to pot cover 1 surface from the dispersion of this gap and easily be fully vaporized prior, and can be discharged from this gap again by the gas after gasifying, this safety in utilization that can strengthen clamshell 2 and convenience; Although, the heat insulating function of clamshell 2 is weakened by this actually used mode to some extent, but the safety protection function of clamshell 2 is not affected.

Structure 2 further: being provided with, in above-mentioned hole, valve position 21, the cap 8 matched with borehole jack 31, cap 8 is cylindrical and is made up of plastic material; Cap 8 is provided with the cage apertures 81 for dodging bonnet 11, and the upper end of cage apertures 81 is closed state; The outer wall lower end of cap 8 is provided with the screw thread with suitable height, and borehole jack 31 inwall is provided with the screw thread being matched therewith, so that between the two can be threaded. Cap 8 is provided with takes on 82 with borehole jack 31 upper end week along mutually closely sealed cap.

When pressure cooker stops heating and enters keeping warm mode, bonnet 11 can not be unloaded, the cap 8 that above-mentioned institute structure sets can thread directly in the hole, valve position 21 on clamshell 2, to block or to be enclosed in the heat dissipation channel on position, hole 21, valve position, the heat loss in pressure cooker can be reduced further, protect the heat insulation effect of energy saving lid strengthening the present invention; Rotation set cap 8 on borehole jack 31 can use as handle again, so that the suit that clamshell 2 is on pot cover 1 operates safer facility. The cap shoulder 82 that institute's structure sets makes cap 8 have the effect better closing heat dissipation channel. Cook in heating process at pressure cooker, then need to unload cap 8 from hole, valve position 21.

The pressure cooker protection of the present embodiment is energy-conservationLidHave a characteristic that the hole, valve position 21 that on the clamshell 2 in 1. the present embodiment, institute's structure sets, solve the problem easily affecting pressure cooker safe handling carrying out protecting and energy-saving structure design is encountered on high-pressure cooker cover 1, make the present embodiment protection energy-conservationLidCan use safely in process cooked by pressure cooker, make human body avoid the high temperature surface of touching high-pressure cooker cover 1, human body can be substantially reduced and scalded pain or the chance scalded by pot cover 1 surface of high temperature, serve effective safety protection function; Simultaneously, the clamshell 2 of the present embodiment coordinates the cavity 23 enclosing closing with pot cover 1, significantly can be slowed down the radiating rate of pressure cooker, and make pressure cooker obtain more preferably energy-conservation and heat insulation effect, fail reasonably to carry out on high-pressure cooker cover 1 to protect and energy-saving structure design and the deficiencies such as safeguard function is poor and energy-conservation and heat insulation effect is not good enough that make existing pressure cooker easily also exist when cooking use thus overcoming prior art. 2. the borehole jack 31 being made up of elastic plastic material, trough rim set 32, gum cover 33 and the aforesaid gum cover that the present embodiment institute structure sets, make end edge in the hole slot of metal-back 3 not direct and pot cover 1 exterior surface, not only can promote the heat-insulating property of clamshell 2 in the present embodiment further, and the cavity 23 enclosed between clamshell 2 and pot cover 1 can be made to keep more good closed state, the protection making the present invention is energy-conservationLidThere is better energy-conservation and heat insulation effect, and bring more facility to its manufacture and use. 3. the protection of the pressure cooker employing present invention is energy-conservationLidIf there is abnormal steam discharge state and forms more profit on pot cover 1 surface in hole, valve position 21 in pressure cooker, then this profit can be discharged through overfall 34 and the relief port 41 that the present embodiment institute structure sets, in order to avoid affecting the normal exhaust of pressure limiting valve, thus it is energy-conservation to efficiently solve employing the present embodiment protectionLidPressure cooker safe handling problem under abnormal steam discharge state occurs, make the clamshell 2 of the present embodiment be suitable for, in pressure cooker, the safe handling under abnormal steam discharge state occurs, make the present embodiment protection energy-conservationLidThere is higher use adaptability and safety. 4. at the liner 5 with heat-blocking action being made up of foamed plastic material that the present embodiment clamshell 2 inwall is ad hoc, improve the heat-insulating property of clamshell 2 further, the present embodiment protection can be obviously enhanced energy-conservationLidSafety protection function and energy-conservation and heat insulation effect, and make the protection of the present invention energy-conservationLidCloser to being actually needed and application easy to implement. 5. the protection of the present embodiment is energy-conservationLidOr combination supporting with the thermal insulation member being arranged on pressure cooker body using, can bring better energy-saving effect to the use of cooking of pressure cooker, it is more beneficial for energy-saving and emission-reduction and has application value.

Claims (7)

1. a pressure cooker protection is energy-conservationLid, including there is lid handle (13) and being furnished with the pressure limiting valve of bonnet (11) and the pot cover (1) of other safety member; It is characterized in that: pot cover (1) is provided with the clamshell (2) for covering its outer surface; Described clamshell (2) is combined by metal-back (3) and gusset set (4) and constitutes; Described metal-back (3) is made up of metallic sheet stock, and described gusset set (4) is made up of plastic material; Described gusset set (4) in annular, its outer circumferential side and metal-back (3) inner circumferential side, lower end phase close-fitting so that both mutually closely fits connect; Described gusset set (4) has suitable width, so that having suitable spacing between the circumferential lateral surface of metal-back (3) inner circumferential side and pot cover (1); The inner circumferential side of described gusset set (4) is sealed on the correspondence position of pot cover (1) outer circumferential side; Described metal-back (3) is provided with the hole, valve position (21) for dodging pressure limiting valve bonnet (11); Hole, described valve position (21) is the flanging bore with suitable height, there is between all sides of its sidewall and bonnet (11) suitable steam discharge space, described valve position hole (21) lower end side is provided with the borehole jack (31) with heat-blocking action with its phase fit, described borehole jack (31) is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover (1) outer surface; Described metal-back (3) and gusset set (4) are provided with the slot to make way (22) for dodging lid handle (13), described slot to make way (22) has the sidewall of suitable height, the lower end side of described slot to make way (22) is provided with the trough rim set (32) with heat-blocking action with its phase fit, described trough rim set (32) is made up of plastic material, and its lower surface is sealed on the correspondence position of pot cover (1) and lid handle (13) outer surface; Clamshell (2) is provided with the hole slot of stepping down for dodging other safety member on pot cover (1), this hole slot of stepping down has the sidewall of suitable height, and the lower end side of this hole slot of stepping down or interior side are provided with the gum cover with heat-blocking action with its phase fit, the lower surface of this gum cover or inner face are sealed on the relevant position of pot cover (1) outer surface; Except for except meeting closely sealed needs between the above-mentioned partial outer face allowing bit architecture and pot cover (1) and lid handle (13) and contacting with each other, between inner surface and the outer surface of pot cover (1) of described metal-back (3), there is suitable spacing, so that described clamshell (2) coordinates the cavity (23) surrounding closing with pot cover (1); Between lower surface and pot cover (1) outer surface of described borehole jack (31), there is suitable spacing; The lower side of described borehole jack (31) is provided with around the pressure limiting valve ring set groove (35) of a week; The sheathed cushion rubber (36) with suitable resilient of described ring set groove (35), has presetting juxtaposition metamorphose surplus between cushion rubber (36) with the corresponding surface of pot cover (1); Described cushion rubber (36) lower side is provided with overfall (34); Described gusset set (4) is provided with the relief port (41) matched with described overfall (34), so that the profit not being vaporized in overfall (34) inflow cavity (23) and pot cover (1) surface can flow downward out from relief port (41); The upper lateral part of described gusset set (4) is provided with centered by relief port (41) to gusset set (4) both sides and along its circumferentially extending annular guiding gutter (42).

2. pressure cooker according to claim 1 protection is energy-conservationLid, it is characterised in that: upper end week of hole, described valve position (21) is along the lower edge not higher than pressure limiting valve cap aperture (12), so that the gas sprayed from cap aperture (12) is not blocked by the inwall in hole, valve position (21).

3. pressure cooker according to claim 1 protection is energy-conservationLid, it is characterised in that: described gusset set (4) is made up of the plastic material with suitable resilient.

4. pressure cooker according to claim 1 protection is energy-conservationLid, it is characterised in that: described guiding gutter (42) is in the shape tiltedly low gradually to relief port (41) center from its two ends.

5. pressure cooker according to claim 1 protection is energy-conservationLid, it is characterised in that: the cross section of described cushion rubber (36) is in falling Y-shaped.

6. pressure cooker according to claim 1 protection is energy-conservationLid, it is characterised in that: described metal-back (3) is made up of stainless sheet steel.

7. pressure cooker according to claim 1 protection is energy-conservationLid, it is characterised in that: the surface spraying of described metal-back (3) has one layer of plastic cement coat with heat-blocking action.