CN105595821A - Protective energy-saving cover for cooking pressure cooker - Google Patents

Abstract

The invention provides a protective energy-saving cover for a cooking pressure cooker. The protective energy-saving cover comprises a cover body (1) with a cover handle, a pressure-limiting valve and other safety members, the cover body (1) is provided with a shell housing (2) formed by a metal shell (3) made of a metal sheet and a side wall sleeve (4) made of plastic, the shell housing (2) is provided with a valve position hole (21), a receding groove (22) and other receding hole grooves, and all the hole grooves are provided with heat insulation rubber sleeves. The shell housing (2) and the cover body (1) are matched to form a cavity (23) in a defining mode; an overflow opening (34) is formed in the lower portion of a hole sleeve (31), a drainage opening (41) and a flow guide groove (42) are formed in the side wall sleeve (4), an oil and water cup (7) is arranged on an outlet of the drainage opening (41), and a heat insulation liner (5) is arranged in the metal shell (3). The protective energy-saving cover has a safety protection function and energy-saving and heat-preserving effects, does not affect safe utilization of the pressure cooker, is convenient to use and beneficial for energy conservation and emission reduction and has application and popularization value.

Description

The pressure cooker of cooking protection energy saving lid

The application be that September 2, application number in 2011 are 2011102568684 the applying date, denomination of invention is the divisional application of pressure cooker protection energy-saving cover of cooking.

Technical field

The present invention relates to cook pressure cooker protection of one energy-conservationLid。

Background technology

Public's pressure cooker of cooking (below claiming: pressure cooker or common pressure cooker) using on gas-cooker or electromagnetic oven of being everlasting day is made up of aluminium alloy or stainless steel material mostly, bring many facilities to people's life, with respect to automatic electric pressure cooker, common pressure cooker can arbitrarily carry out at any time firepower regulation and control in the process of cooking, and has its certain use advantage. But, the metal surface exposed area of common pressure cooker is large, 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 of exposing is in relatively-high temperature state, and because its surface temperature is high, when human body is touched on it because of carelessness, easily scalded pain or scalded; More obvious deficiency 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 in outside radiating state, because its surface temperature is high, exposed area is large again, and dispersed heat is many, particularly in environment temperature lower winter, the temperature difference of pot cover and surrounding environment is large, dispels the heat faster, and the heat of loss is more, both energy-conservation while being unfavorable for cooking, is also unfavorable for that pressure cooker is in the insulation that stops cooking after heating.

Summary of the invention

The object of the present invention is to provide cook pressure cooker protection of one energy-conservationLid, common pressure cooker adopts protection of the present invention energy-conservationLid, make human body avoid the pressure cooker cap surface of touching 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 the described pressure cooker protection of cooking is energy-conservationLid, comprise having and cover handle and be 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 constituted by metal-back and gusset cover; Described metal-back is made up of metallic sheet stock, and described gusset cover is made up of plastic material; Described gusset cover is annular, and its outer circumferential side and inner circumferential side, described metal-back lower end close-fitting, so that both closely fit connections mutually; Described gusset cover has suitable width, so that have suitable spacing between metal-back inner circumferential side face and the circumferential lateral surface of pot cover; The inner circumferential side of described gusset cover is sealed on the correspondence position of pot cover outer circumferential side; Described metal-back is provided with the valve position hole for dodging pressure limiting valve bonnet; Described valve position hole is the flanging bore with suitable height, has suitable steam discharge space between all sides of its sidewall and bonnet, and its lower surface is sealed on the correspondence position of pot cover outer surface; Described metal-back and gusset put and are provided with the slot to make way that covers handle for dodging, 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; On clamshell, be also provided with the hole slot of stepping down for dodging other safety member on pot cover, do not affect the normal use of this safety member so that be set in clamshell on pot cover, 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 meeting between the above-mentioned part outer surface that allows bit architecture and pot cover and lid handle closely sealed needs are in contact with one another, between the inner surface of described metal-back and the outer surface of pot cover, there is suitable spacing, so that described clamshell surrounds the cavity of sealing together with pot cover. Additional information: conventionally, on high-pressure pot cover, are furnished with the structure with voltage stabilizing exhaust or the disappointing function of superpressure or parts (being referred to as: safety member) including pressure limiting valve, as except arranging pressure limiting valve, on pot cover, be also furnished with at least one and there is the lose heart safety valve of function of superpressure, and offer at least one at pot cover avris and be out of shape the safe aperture of protrusion for holding high-pressure cooker sealing ring because of abnormal pressure; Other safety member on the pot cover of above-mentioned record just refers to matches safety valve on pot cover or/and safe aperture with known manner except pressure limiting valve.

Object of the present invention also can be achieved in that the described pressure cooker protection of cooking is energy-conservationLid, it is characterized in that: described valve position hole 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 cover with heat-blocking action with its phase fit, and described trough rim cover 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, for dodging lower end side or interior distolateral being provided with and this hole slot of stepping down gum cover with heat-blocking action closing that is nested of the hole slot of stepping down of other safety member on pot cover, the lower surface of this gum cover or inner face are sealed on the relevant position of pot cover outer surface.

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

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

The present invention is energy-conservationLidMake clamshell coordinate the cavity that surrounds sealing with pot cover, in this enclosed cavity, be full of thermal conductivity factor low and not with the air of extraneous convection current, make clamshell and the cavity that institute's structure is established there is 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 in the process of cooking, further reduce heat loss, is conducive to accelerate the process of cooking of pressure cooker, shorten and cook the heat time, thereby make pressure cooker in the time cooking, there is good energy-saving effect; And the thermal insulation that has obtained clamshell because of pot cover covers, and makes this pressure cooker have better heat-insulating property and heat insulation effect, pressure cooker is stopping, after heating, obtaining longer temperature retention time, the chance that reheats of minimizing and be also conducive to energy-conservation.

The present invention is energy-conservationLidIn clamshell on institute's structure valve position hole of establishing and and bonnet between steam discharge space, make clamshell on pot cover, cover the normal exhaust that can not affect pressure limiting valve, on pot cover, protect and the easy problem that affects pressure cooker safe handling that energy-saving structure design faces thereby effectively solved, make protection of the present invention energy-conservationLidCan realize the safety protection function more perfect to human body and obtain better energy-conservation and heat insulation effect cooking to support the use on pressure cooker, thereby overcome that prior art fails reasonably on high-pressure cooker cover, to protect and energy-saving structure design and make existing pressure cooker easily exist the deficiencies such as poor and the energy-conservation and heat insulation effect of safeguard function is not good enough while using cooking.

The present invention is energy-conservationLidIn the main body of clamshell be that metal-back adopts sheet metal to make, make protection of the present invention 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, use to cooking of pressure cooker and offer convenience, it is conducive to energy-saving and emission-reduction and has application value.

Brief description of the drawings

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 cutaway view of Fig. 1.

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

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

Fig. 6 is that overall fitting of the present invention is related to schematic diagram (part).

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

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

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

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

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

Detailed description of the invention

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

Embodiment mono-

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

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

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

Above-mentioned metal-back 3 and gusset cover 4 are provided with the slot to make way 22 that covers handle 13 for dodging, 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 safety 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 arranging on pot cover 1, on clamshell 2, be also provided with the hole slot of stepping down for dodging other safety member on pot cover 1, do not affect the normal use of this safety member so that be set in clamshell 2 on pot cover 1, 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 meeting above-mentioned allowing between bit architecture and the part outer surface of pot cover 1 and lid handle 13 closely sealed needs are in contact with one another, between the outer surface of the inner surface of metal-back 3 and pot cover 1, there is suitable spacing, so that clamshell 2 coordinates the cavity 23 that surrounds sealing with pot cover 1.

The valve position hole 21 that on clamshell 2 in the present embodiment, institute's structure is established and and 11 weeks sides of bonnet between steam discharge space, the gas of discharging from pressure limiting valve can without hindrancely be circulated, and the pot cover 1 that makes to be set with after clamshell 2 does not affect pressure cooker in the safe handling of cooking in heating process; Meanwhile, clamshell 2 makes the heat-delivery surface of pot cover 1 be able to more comprehensively effectively adiabatic covering, and the surface temperature of clamshell 2 is starkly lower than the surface temperature of pot cover 1, thereby makes clamshell 2 have good safety protection function to human body; And, owing to forming the cavity 23 of sealing between clamshell 2 and pot cover 1, in it, be full of thermal conductivity factor low and not with the air of extraneous convection current, make clamshell 2 there is good heat-insulating property, the radiating rate of pot cover 1 can significantly slow down, be conducive to accelerate the process of cooking of pressure cooker, shorten and cook the heat time, there is energy-saving effect; Stop after heating at pressure cooker, 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 that reheats and be also conducive to energy-conservation.

It is energy-conservation for the present invention is protectedLidBe easier to practice and have better result of use, on the basis of above-mentioned structure, the further structure of the present embodiment is established following structure, and its benefit is statement subsequently also.

Further structure 1: the upper end week in above-mentioned valve position hole 21 is along the lower edge higher than pressure limiting bonnet bore 12 not, so that the gas spraying from cap hole 12 is not blocked by the inwall in valve position hole 21.

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

Further structure 2: above-mentioned gusset cover 4 is made by having suitable flexible plastic material. Having suitable flexible gusset overlaps 4 tolerables and there is larger foozle, and make it be easy to form good mated condition with pot cover 1, can make the handling of clamshell 2 on pot cover 1 more convenient, and make formed cavity 23 closed states more good, be conducive to promote the heat-insulating property of the present embodiment clamshell 2.

Further structure 3: above-mentioned valve position hole 21 lower end side are provided with the borehole jack with heat-blocking action 31 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 cover 32 with heat-blocking action with its phase fit, and trough rim cover 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 surfaces; The lower end side of above-mentioned safety vent 24 is provided with the gum cover with heat-blocking action 33 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, for dodging lower end side or interior distolateral being provided with and this hole slot of stepping down gum cover with heat-blocking action closing that is nested of the hole slot of stepping down of other safety member on pot cover 1, 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 cover 32, gum cover 33 and above-mentioned gum cover that institute's structure is established, can make the inner limit of hole slot of metal-back 3 directly not contact with pot cover 1 outer surface, the heat energy that can significantly slow down conducts to the speed on metal-back 3 through pot cover 1, make the temperature rise of clamshell 2 lower, and further promote the heat-insulating property of the present embodiment clamshell 2, make protection of the present invention energy-conservationLidThere is better safety protection function and energy-conservation and heat insulation effect.

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

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

Further structure 5: the bottom of above-mentioned borehole jack 31 is provided with so that the overfall 34 that described valve position hole 21 and cavity 23 connect. Gusset cover 4 is provided with the relief port 41 matching with overfall 34, so that flow in cavity 23 and the lip-deep profit not being vaporized of pot cover 1 flows out from relief port 41 downwards from overfall 34.

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

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

The profit cup 7 that institute's structure is established can be accepted the profit of discharging from relief port 41, and makes this profit avoid overflow to the kitchen range top, makes to adopt the present invention to protect energy-conservationLidPressure cooker cook use safer facility.

Further structure 7: the upper lateral part of above-mentioned gusset cover 4 is provided with the annular guiding gutter 42 that overlaps 4 both sides and circumferentially extend along it to gusset centered by relief port 41. Guiding gutter 42 be from its two ends to relief port 41 centers oblique low shape gradually.

The guiding gutter 42 that institute's structure is established can block and be connected to the profit not being vaporized in cavity 23 and on pot cover 1 surface, can reduce this profit not being vaporized and pot cover 1 Surface Contact or holdup time, thereby can reduce further profit to vaporize the heat-energy losses that causes and be conducive to energy-conservation, and make the profit in cavity 23 be easier to flow out from relief port 41 downwards, make the use of clamshell 2 more convenient. And guiding gutter 42 to relief port 41 centers gradually tiltedly low more easily make in guiding gutter 42 profit flow out downwards and drain, it is energy-conservation that this protects the present inventionLidUse more convenient.

Further structure 8: above-mentioned metal-back 3 is provided with the cover cap 8 matching with valve position hole 21, cover cap 8 is cylindrical and be made up of heat insulation plastic material; Cover cap 8 is provided with the cover hole 81 for dodging bonnet 11, and the upper end in cover hole 81 is closed state. Cover cap 8 is provided with 21 upper end weeks of valve position hole along mutually closely sealed cap shoulder 82. The preferred expanded polypropylene material of cover cap 8 is made.

Adopt the present invention to protect energy-conservationLidPressure cooker stops after heating at it, in the time that needs enter keeping warm mode, the cover cap 8 that above-mentioned structure is established can directly be set in the valve position hole 21 on clamshell 2, to block or to be enclosed in the locational heat dissipation channel in valve position hole 21, can reduce heat loss, further to strengthen heat insulation effect of the present invention. Cap that institute's structure is established shoulder 82 makes to cover cap 8 and has the effect of better sealing heat dissipation channel. The cover cap 8 made from expanded polypropylene material, has the inexpensive and good advantage of insulation effect of light weight.

Further structure 9: 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 with respect to selecting other metal material, stainless steel material thermal conductivity factor is relatively low, make clamshell 2 have better heat insulating function, and it is energy-conservation that the present invention is protectedLidThere is better safety protection function and energy-conservation and heat insulation effect.

Further structure 10: the surface spraying of above-mentioned metal-back 3 has one deck to have the plastic cement coat of heat-blocking action. The lip-deep heat insulation coat of metal-back 3, makes metal-back 3 can select the more common metal light sheet material of low price, and can strengthen the heat-insulating property of clamshell 2.

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

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

Embodiment bis-

The pressure cooker protection of cooking of the embodiment of the present invention two is energy-conservationLid(structure is shown in Fig. 8 to Figure 10), energy-conservation for the present invention is protectedLidFunction more perfect, implement and application to make it to be easier to, on the basis of the embodiment of the present invention one, the further structure of the embodiment of the present invention two is established following structure, its benefit is also explained subsequently.

Further structure 1: there is suitable spacing between the lower surface of above-mentioned borehole jack 31 and pot cover 1 outer surface; The lower side of borehole jack 31 is provided with around the pressure limiting valve ring set groove 35 of a week; Ring set groove 35 is sheathed has suitable flexible cushion rubber 36, between cushion rubber 36 and the corresponding surface of pot cover 1, has the juxtaposition metamorphose surplus presetting, keeping close-fitting state with the outer surface of pot cover (1). The cross section of cushion rubber 36 is down " Y " shape. Cushion rubber 36 lower sides are provided with overfall 34.

The ring set groove 35 that institute's structure is established on borehole jack 31 and the cushion rubber 36 arranging are conducive to allow that borehole jack 31, trough rim cover 32, gum cover 33 and aforesaid gum cover have larger manufacture and mismatch error, also can make cavity 23 keep better closed state, thereby make clamshell 2 keep good heat-insulating property and using adaptability and convenience. It is circular conventional apron that above-mentioned cushion rubber 36 can adopt cross section, comparatively speaking, the cushion rubber 36 that cross section is down " Y " shape has better using adaptability, can make the cavity 23 enclosing between clamshell 2 and pot cover 1 keep better closed state, thereby make the present invention there is better energy-conservation and heat insulation effect, and make the present invention there is on the whole more rational anufacturability and ease of use. And the set overfall 34 in cushion rubber 36 lower sides, also be easy to make flow to pot cover 1 surface from overfall 34 in the oil-water collection in valve position hole 21, and make this profit avoid accumulating in valve position hole 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 of what in the present embodiment, structure was established have ring set groove 35 makes the pressure cooker protection energy-saving cover of cooking of the present embodiment in the time of practical application, have certain flexibility, as in the time that reality is used, can unload or not be set with above-mentioned cushion rubber 36, the gap that spacing between the lower surface of above-mentioned borehole jack 31 and pot cover 1 outer surface forms can and be easily gasified totally from this gap dispersion train to pot cover 1 surface the profit in valve position hole 21, and the gas after being vaporized can be discharged from this gap again, and this can strengthen safety in utilization and the convenience of clamshell 2; Although this actual occupation mode weakens to some extent to the heat insulating function of clamshell 2, and the safety protection function of clamshell 2 is not affected.

Further structure 2: be provided with the cover cap 8 matching with borehole jack 31 in above-mentioned valve position hole 21, cover cap 8 is cylindrical and be made up of plastic material; Cover cap 8 is provided with the cover hole 81 for dodging bonnet 11, and the upper end in cover hole 81 is closed state; The outer wall lower end of cover cap 8 is provided with the screw thread with suitable height, and borehole jack 31 inwalls are provided with the screw thread matching with it, so that can be threaded between the two. Cover cap 8 is provided with 31 upper end weeks of borehole jack along mutually closely sealed cap shoulder 82.

Stop heating and while entering keeping warm mode at pressure cooker, can not unload bonnet 11, the cover cap 8 that above-mentioned institute structure is established can directly screw in the valve position hole 21 on clamshell 2, to block or to be enclosed in the locational heat dissipation channel in valve position hole 21, can further reduce the heat loss in pressure cooker, protect the heat insulation effect of energy saving lid to strengthen the present invention; The cover cap 8 of rotation set on borehole jack 31 can be used as again handle and uses, so that the suit of clamshell 2 on pot cover 1 operates safer facility. Cap that institute's structure is established shoulder 82 makes to cover cap 8 and has the effect of better sealing heat dissipation channel. Cook in heating process at pressure cooker, need to from valve position hole 21, unload lower cover cap 8.

The pressure cooker protection of cooking of the present embodiment is energy-conservationLidThere is following features: 1. the valve position hole 21 that on the clamshell 2 in the present embodiment, institute's structure is established, solve and on high-pressure cooker cover 1, protected and the easy problem that affects pressure cooker safe handling that energy-saving structure design faces, make the present embodiment protection energy-conservationLidCan in pressure cooker is cooked process, use safely, make human body avoid touching the high temperature surface of high-pressure cooker cover 1, can significantly reduce the chance that human body is scalded pain or scalds by pot cover 1 surface of high temperature, play effective safety protection function; Simultaneously, the clamshell 2 of the present embodiment coordinates the cavity 23 that encloses sealing with pot cover 1, the radiating rate of pressure cooker can significantly slow down, and make pressure cooker obtain more preferably energy-conservation and heat insulation effect, thereby overcome that prior art fails reasonably on high-pressure cooker cover 1, to protect and energy-saving structure design and make existing pressure cooker easily exist the deficiencies such as poor and the energy-conservation and heat insulation effect of safeguard function is not good enough while using cooking. 2. the present embodiment institute structure is established the borehole jack of being made by elastic plastic material 31, trough rim cover 32, gum cover 33 and aforesaid gum cover, the inner limit of hole slot of metal-back 3 is not directly contacted with pot cover 1 outer surface, not only can further promote the heat-insulating property of the clamshell 2 in the present embodiment, and can make the cavity 23 enclosing between clamshell 2 and pot cover 1 keep more good closed state, make protection of the present invention energy-conservationLidThere is better energy-conservation and heat insulation effect, and bring to its manufacture and use more convenient. 3. the pressure cooker of cooking adopts protection of the present invention energy-conservationLidThe more profit of the pot cover 1 upper formation in surface if abnormal steam discharge state appears in pressure cooker in valve position hole 21, overfall 34 and relief port 41 that this profit can be established through the present embodiment institute structure are discharged, in order to avoid affect the normal exhaust of pressure limiting valve, protect energy-conservation thereby effectively solved employing the present embodimentLidPressure cooker in the safe handling problem occurring under abnormal steam discharge state, make the clamshell 2 of the present embodiment more can be adapted to pressure cooker and occur the safe handling under abnormal steam discharge state, make the present embodiment protection energy-conservationLidThere is stronger using adaptability and security. 4. at the ad hoc liner with heat-blocking action 5 of being made by foamed plastic material of the present embodiment clamshell 2 inwalls, further improve the heat-insulating property of clamshell 2, can significantly strengthen the present embodiment protection energy-conservationLidSafety protection function and energy-conservation and heat insulation effect, and make protection of the present invention energy-conservationLidMore closing to reality needs and application easy to implement. 5. the protection of the present embodiment is energy-conservationLidCan, with to be arranged on thermal insulation member on pressure cooker body supporting or be used in combination, use to cooking of pressure cooker and bring better energy-saving effect, it is more conducive to energy-saving and emission-reduction and has application value.

Claims (9)

1. the pressure cooker protection of cooking is energy-conservationLid, comprise and there is the pressure limiting valve that covers handle (13) and be furnished with 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 constituted by metal-back (3) and gusset cover (4); Described metal-back (3) is made up of metallic sheet stock, and described gusset cover (4) is made up of plastic material; Described gusset cover (4) is annular, and its outer circumferential side and metal-back (3) inner circumferential side, lower end phase close-fitting, so that both closely fit connections mutually; Described gusset cover (4) has suitable width, so that have suitable spacing between metal-back (3) inner circumferential side face and the circumferential lateral surface of pot cover (1); The inner circumferential side of described gusset cover (4) is sealed on the correspondence position of pot cover (1) outer circumferential side; Described metal-back (3) is provided with the valve position hole (21) for dodging pressure limiting valve bonnet (11); Described valve position hole (21) is for having the flanging bore of suitable height, between all sides of its sidewall and bonnet (11), there is suitable steam discharge space, described valve position hole (21) lower end side is provided with the borehole jack with heat-blocking action (31) 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 cover (4) are provided with the slot to make way (22) that covers handle (13) for dodging, 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 cover (32) with heat-blocking action with its phase fit, described trough rim cover (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 distolateral being provided with and the gum cover with heat-blocking action of 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 meeting between the above-mentioned part outer surface that allows bit architecture and pot cover (1) and lid handle (13) closely sealed needs are in contact with one another, between the outer surface of the inner surface of described metal-back (3) and pot cover (1), there is suitable spacing, so that described clamshell (2) coordinates the cavity (23) that surrounds sealing with pot cover (1); The bottom of described borehole jack (31) is provided with so that the overfall (34) that described valve position hole (21) and cavity (23) connect; Described gusset cover (4) is provided with the relief port (41) matching with described overfall (34), so that flow in cavity (23) and the lip-deep profit not being vaporized of pot cover (1) can flow out from relief port (41) downwards from overfall (34); The upper lateral part of described gusset cover (4) is provided with the annular guiding gutter (42) circumferentially extending to gusset cover (4) both sides and along it centered by relief port (41); The exit position of described relief port (41) is provided with the profit cup (7) with a pair of slotting ear (71); Described metal-back (3) is provided with the jack (72) that a pair of and slotting ear (71) matches, and makes profit cup (7) be articulated in the outside of metal-back (3) and the downside edge of gusset cover (4) and pot cover (1), to accept the profit of discharging from relief port (41); The inwall of described metal-back (3) is provided with the liner with heat-blocking action (5) of being made up of foamed plastic material; Bonded to each other between the matching surface of described liner (5) and metal-back (3), so that both can be mutually closely sealed or bonding integral; Between the outer surface of described liner (5) and pot cover (1), there is suitable spacing.

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

3. the pressure cooker protection of cooking according to claim 1 is energy-conservationLid, it is characterized in that: described gusset cover (4) is made by having suitable flexible plastic material.

4. the pressure cooker protection of cooking according to claim 1 is energy-conservationLid, it is characterized in that: described borehole jack (31), trough rim cover (32) and above-mentioned gum cover are made by having suitable flexible plastic material.

5. the pressure cooker protection of cooking according to claim 4 is energy-conservationLid, it is characterized in that: the cross section of described borehole jack (31), trough rim cover (32) and above-mentioned gum cover is all " H " shape.

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

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

8. the pressure cooker protection of cooking according to claim 1 is energy-conservationLid, it is characterized in that: the surface spraying of described metal-back (3) has one deck to have the plastic cement coat of heat-blocking action.

9. the pressure cooker protection of cooking according to claim 1 is energy-conservationLid, it is characterized in that: described liner (5) preferably expanded polypropylene material is made.