CN105725763A

CN105725763A - Protective energy-saving cover of pressure cooker

Info

Publication number: CN105725763A
Application number: CN201610187213.9A
Authority: CN
Inventors: 戴梦云
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-05
Filing date: 2011-09-05
Publication date: 2016-07-06

Abstract

The invention provides a protective energy-saving cover of a pressure cooker. The protective energy-saving cover comprises a cooker cover 1 composed of a cover handle, a pressure-limiting valve and other safety components. The cooker cover 1 is provided with a casing 2 composed of a shell 3 and a side enclosing sleeve 4. The shell 3 and the side enclosing sleeve 4 are made of plastics. The side enclosing sleeve 4 and the shell 3 are closely matched, and the side enclosing sleeve 4, the shell 3 and the cooker cover 1 are sealed. The shell 3 is provided with a clearance hole 22, a valve position hole 21 and other receding hole grooves. The casing 2 and the cooker cover 1 form a cavity 23. The lower end of the valve position hole 21 is provided with a loop groove 31, a rubber ring 32 and an overflow port 33 of the rubber ring 32. The rubber ring 32 is in an inverted Y shape. The side enclosing sleeve 4 is provided with a discharge port 41. The discharge port 41 and the overflow port 33 are formed in the same side. An oil water cup (7) is arranged in the outlet position of the discharge port 41. The shell 3 is provided with a cover cap 8. A lining 5 is arranged on the inner side wall of the shell 3. The protective energy-saving cover is adopted to the pressure cooker, and when the protective energy-saving cover is used for cooking, the protective energy-saving cover has the good safety protection function and the energy-saving and heat-preserving effects, is beneficial to energy conservation and emission reduction and has application and popularization value.

Description

Pressure cooker protection energy saving lid

To be 201110258670X, the applying date be JIUYUE in 2011 5 days that the application is application number, denomination of invention are the divisional application of pressure cooker protection energy-saving cover.

Technical field

The present invention relates to a kind of pressure cooker protection energy saving lid.

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 sub-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 saving lid, ordinary high pressure pot adopts the protection energy saving lid of the present invention, 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 energy saving lid, including the high-pressure cooker cover with lid handle, pot cover is provided with the pressure limiting valve with bonnet and 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 shell and gusset and constitutes；Described shell and gusset set are made by plastic material；Described gusset set is annular, its outer circumferential side and inner circumferential side, described shell lower end phase close-fitting, so that both closely fits connections mutually；Described gusset set has suitable width, so that having suitable spacing between shell 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 circumferential lateral surface；Described shell is provided with the hole, valve position for dodging pressure limiting valve bonnet；Hole, described valve position has complete sidewall, 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 shell and gusset put the slot to make way being provided with for dodging lid handle, and described slot to make way has complete sidewall, and its lower surface is sealed on the outer surface correspondence position of pot cover and lid handle；Described clamshell is provided with the hole slot of stepping down for dodging other safety member on pot cover, and the lower surface of this hole slot of stepping down or inner face are sealed on the correspondence position of 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 shell, there is suitable spacing, so that described clamshell and pot cover cooperatively surround the cavity of closing.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 it is also possible that realize, described pressure cooker protection energy saving lid, it is characterised in that: between lower surface and the outer surface of pot cover in hole, described valve position, there is suitable spacing；The bottom in hole, described valve position is provided with around the pressure limiting valve ring set groove of a week；Described ring set groove is arranged with the cushion rubber with suitable resilient, has presetting juxtaposition metamorphose surplus between described cushion rubber and the corresponding surface of pot cover, so that its outer surface with pot cover keeps close-fitting state.

The purpose of the present invention it may also is that realize, described pressure cooker protection energy saving lid, it is characterised in that: the medial wall of described shell 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 shell 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 energy saving lid of the pressure cooker adapted present invention, makes the pressure cooker cap surface of high temperature obtain heat insulation covering, and human body not easily directly touches high-pressure pot cover surface.Owing to the contact surface between clamshell and pot cover is less, shell and gusset set are made by plastic material, and there is between the inner surface of shell and the corresponding outer surface of pot cover suitable spacing, this can significantly reduce heat energy through pot cover surface conductive speed on clamshell, and make the surface temperature surface temperature significantly lower than pot cover of clamshell, even if human body touches clamshell surface without by boiling hot pain, therefore, human body is had good safety protection function by the protection energy saving lid of the present invention.

Clamshell in the present invention and pot cover surround the cavity of closing jointly, and the air conduction coefficient in this closing cavity is low, make clamshell that institute's structure sets and cavity have good insulating characteristics.Therefore, clamshell in the present invention can significantly slow down 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.Again because pot cover obtains the adiabatic covering of clamshell, the adapted present invention protects the pressure cooker of energy saving lid and has better heat-insulating property, and pressure cooker after the cessation of the heating, also can obtain longer temperature retention time, and this is also beneficial to energy-conservation.

Hole, valve position on clamshell in the present invention, steam discharge space between hole, valve position and all sides of bonnet, the clamshell in the present invention 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 high-pressure cooker cover, the protection energy saving lid making the present invention supports the use in pressure cooker and can realize the safety protection function that human body is more perfect and obtain better energy-conservation and heat insulation effect, fail 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.

Clamshell in the protection energy saving lid of the present invention is made up of plastic material, and production technology is simple, and simple in construction is durable, excellent heat insulating performance, safe and convenient to use.The protection energy saving lid of the present invention can support the use with other thermal insulation member being arranged on pressure cooker, better protection and energy-conservation and heat insulation effect can be obtained, and bring more facility can 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.

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, shell 3, ring set groove 31, cushion rubber 32, overfall 33, 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

Pressure cooker protection energy saving lid (structure is shown in Fig. 1 to Fig. 7) of the embodiment of the present invention, including the high-pressure cooker cover 1 with lid handle 13, pot cover 1 is provided with the pressure limiting valve with bonnet 11 and relief valve 14 and other safety member；It is characterized in that: pot cover 1 is provided with the clamshell 2 for covering its outer surface；Clamshell 2 is overlapped 4 combinations by shell 3 and gusset and constitutes；Shell 3 and gusset set 4 are made by plastic material；

Above-mentioned gusset set 4 is annular, its outer circumferential side and inner circumferential side, shell 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 inner circumferential side of shell 3 and the circumferential lateral surface of pot cover 1；The inner circumferential side of gusset set 4 is sealed on the correspondence position of pot cover 1 circumferential lateral surface；

Above-mentioned shell 3 is provided with the hole, valve position 21 for dodging pressure limiting valve bonnet 11；Hole, valve position 21 has complete sidewall, 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 shell 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 complete sidewall, and its lower surface is sealed on the outer surface correspondence position of pot cover 1 and lid handle 13；

Above-mentioned shell 3 is provided with the safety vent 24 for dodging relief valve 14, and described safety vent 24 has complete sidewall, 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 provided with the hole slot of stepping down for dodging other safety member on pot cover 1, and the lower surface of this hole slot of stepping down or inner face are sealed on the correspondence 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 shell 3, there is suitable spacing, so that above-mentioned clamshell 2 surrounds the cavity 23 of closing together with pot cover 1.

The hole, valve position 21 that on clamshell 2 in the present embodiment, institute's structure sets, space between hole, valve position 21 and all sides of bonnet 11, make the without hindrance circulation of gas discharged from pressure limiting valve, and make not affect pressure cooker safe handling in heating process of cooking after suit clamshell 2 on pot cover 1.Contact surface between clamshell 2 and pot cover 1 is less, shell 3 and gusset set 4 are made by plastic material, thermal energy conduction speed between pot cover 1 and clamshell 2 is slow, make the surface temperature surface temperature significantly lower than high-pressure cooker cover 1 of clamshell 2, even if human body touches clamshell 2 surface without by boiling hot pain, and makes the protection energy saving lid of the present embodiment that human body to have good safety protection function.Simultaneously, cooperate between clamshell 2 and pot cover 1 and form the cavity 23 of closing, 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, and make this protection energy saving lid have good energy-saving effect.After pressure cooker stops heating, clamshell 2 also has better heat insulation effect, makes pressure cooker can obtain longer temperature retention time, reduces the chance reheated and be also beneficial to energy-conservation.

Being more easily performed application for making the present invention protect energy saving lid and have better result of use, on the basis of above-mentioned structure, the further structure of the present embodiment sets constructed as below, 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, and this protection energy saving lid is conducive to 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 the pot cover 1 with institute fit and form good mated condition, the clamshell 2 handling on pot cover 1 can be made more easy, and make cavity 23 closed state formed more good, be conducive to promoting the heat-insulating property of this protection energy saving lid.

Structure 3 further: between lower surface and the outer surface of pot cover 1 in above-mentioned hole, valve position 21, there is suitable spacing；The bottom in hole, valve position 21 is provided with around the pressure limiting valve ring set groove 31 of a week；Ring set groove 31 is arranged with the cushion rubber 32 with suitable resilient, has presetting juxtaposition metamorphose surplus between cushion rubber 32 and the corresponding surface of pot cover 1, can keep close-fitting state with the outer surface of pot cover 1.

Ring set groove 31 that institute's structure sets and supporting cushion rubber 32 thereof, manufacture that the hole slot of stepping down that is conducive to allowing on clamshell 2 is bigger and mismatch error, it is also easy to make the cavity 23 between clamshell 2 and pot cover 1 remain good closed state, so that this protection energy saving lid keeps good heat-insulating property and ease of use.Spacing between lower surface, hole 21, valve position and pot cover 1 surface that in the present embodiment, structure sets makes the pressure cooker protection energy-saving cover of the present embodiment have motility when practical application, as when actually used, can unload or not be set with or be not provided with above-mentioned cushion rubber 32, profit in the Shi Fawei hole, space 21 that then spacing between lower surface and pot cover 1 surface in hole, valve position 21 is constituted can flow to pot cover 1 surface from the dispersion of this space and easily be fully vaporized prior, and can be discharged from this space again by the gas after gasifying, this safety in utilization that can strengthen clamshell 2 and convenience；The heat insulating function of clamshell 2 is weakened by above-mentioned application mode to some extent, but the safety protection function of clamshell 2 is not affected.

Further structure 4: the bottom of above-mentioned cushion rubber 32 is provided with so that the overfall 33 that connects of hole, valve position 21 and cavity 23.Above-mentioned cushion rubber 32 is in falling Y-shaped.

The conventional apron that above-mentioned cushion rubber 32 can adopt cross section to be circle, comparatively speaking, cross section has and better uses adaptability in falling the cushion rubber 32 of Y-shaped, the cavity 23 enclosed between clamshell 2 and pot cover 1 can be made to keep more good closed state, so that this protection energy saving lid has better energy-conservation and heat insulation effect, and bring more facility to its manufacture and use.Cushion rubber 32 lower side can be provided with overfall 33, can make the oil-water collection in hole, valve position 21 flow to pot cover 1 surface from overfall 33, the gas that this profit is formed after being vaporized can be emerged from overfall 33 and discharge through hole, valve position 21 again, in order to avoid affecting the normal exhaust of pressure limiting valve and the safe handling of pressure cooker.

Structure 5 further: being provided with between the upper and lower sides of above-mentioned gusset set 4 so that cavity 23 and the extraneous relief port 41 connected, flowing downward out from relief port 41 so that flowing into the profit not being vaporized in cavity 23 and on pot cover 1 surface.Relief port 41 is arranged on the same lateral position corresponding with overfall 33, makes to flow in cavity 23 and the profit not being vaporized on pot cover 1 surface is prone to concentrate and flows downward out from relief port 41 through overfall 33.

When the profit flowing on pot cover 1 surface fails to be vaporized completely, the profit not being vaporized can be concentrated and discharge from relief port 41, in order to avoid this profit accumulates in the normal use affecting clamshell 2 in clamshell 2 and cavity 23, and this protection energy saving lid is made to keep good heat insulating function and ease of use.Oil-water collection is discharged from relief port 41, also provides facility for the centralized collection of profit.

Further structure 6: the upper lateral part of above-mentioned gusset set 4 is provided with centered by relief port 41 to both sides and along its circumferentially extending ringwise guiding gutter 42.

The guiding gutter 42 that institute's structure sets can block and connect the profit not being vaporized dropping down downwards to fall from pot cover 1 surface, and this profit is easier to concentrate discharges from relief port 41, is conducive to this protection energy saving lid to keep good insulation effect and ease of use.

Structure 7 further: above-mentioned guiding gutter 42 is in the shape tiltedly low gradually to relief port 41 center from its two ends.

The guiding gutter 42 of above-mentioned shape can make it be blocked the profit that connects faster to flow out from relief port 41 and drain, be also beneficial to this protection energy saving lid good insulation effect of maintenance and ease of use.

Structure 8 further: the exit position of above-mentioned relief port 41 is provided with has the profit cup 7 inserting ear 71 a pair；Shell 3 is provided with a pair jack 72 matched with slotting ear 71, makes profit cup 7 be articulated in the outside of shell 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 present invention protect the use of energy saving lid more convenient.

Structure 9 further: above-mentioned shell 3 is provided with the cap 8 matched with hole, valve position 21, and 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；Cap 8 is provided with takes on 82 with hole 21, valve position upper end week along mutually closely sealed cap；The lower end outer wall of cap 8 is provided with the screw thread with suitable height, is provided with, in hole, valve position 21, the screw thread being matched therewith.

When pressure cooker stops heating and enters keeping warm mode, bonnet 11 can 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 shell 3 can use as handle again, so that the suit that the clamshell 2 in the present invention is on pot cover 1 operates safer facility.Cook in heating process at pressure cooker, then need to unload cap 8 from shell 3.

Structure 10 further: the medial wall of above-mentioned shell 3 is provided with the liner 5 being made up of foamed plastic material；Between the matching surface of liner 5 and shell 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 liner 5 that institute's structure sets has good heat insulating function, is conducive to strengthening the heat-insulating property of clamshell 2 in the present embodiment, makes this protection energy saving lid have better protection 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.For making clamshell 2 more environmental protection in the present embodiment and durable and obtain better insulation effect, the preferred expanded polypropylene material of liner 5 that institute's structure sets is made.

The pressure cooker protection energy saving lid of the present embodiment has a characteristic that the hole, valve position 21 that on the clamshell 2 in 1. protection energy saving lids, 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 saving lid can use safely in process cooked by pressure cooker, it is achieved thereby that the adiabatic of high-pressure cooker cover 1 is covered in heating process cooked by pressure cooker, human body is made to avoid touching the high temperature surface of this pot cover, substantially reduce human body and scalded pain or the chance scalded by the pressure cooker surface of high temperature, serve effective safety protection function.Simultaneously, clamshell 2 in this protection energy saving lid and pot cover 1 cooperatively enclose the cavity 23 of closing, 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 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 ring set groove 31 in this protection energy saving lid and supporting cushion rubber 32 thereof, the hole slot of stepping down allowing on clamshell 2 is conducive to have bigger manufacture and mismatch error, it is also easy to make the cavity 23 between clamshell 2 and pot cover 1 remain good closed state, so that this protection energy saving lid keeps good heat-insulating property, and bring more facility to its manufacture and use.3. pressure cooker adopts the protection energy saving lid of the present invention, if 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 protect overfall 33 that in energy saving lid, institute's structure sets and relief port 41 is discharged through this, in order to avoid affecting the normal exhaust of pressure limiting valve, thus efficiently solving the pressure cooker of adapted this protection energy saving lid safe handling problem under abnormal steam discharge state occurs, this protection energy saving lid is made to be suitable for, in pressure cooker, the safe handling under abnormal steam discharge state occurs, make it have higher use adaptability and safety.4. the insulating inner lining 5 being made up of foamed plastic material that clamshell 2 inwall in this protection energy saving lid is ad hoc, further increase the heat-insulating property of this protection energy saving lid, the protection of this protection energy saving lid and energy-conservation and heat insulation effect can be obviously enhanced, and make this protection energy saving lid closer to being actually needed and application easy to implement.5. this protection energy saving lid simple in construction is durable, and excellent heat insulating performance is safe and convenient to use；This protection energy saving lid can use in or combination supporting with other thermal insulation member being arranged on pressure cooker body, and can bring more facility to the use of cooking of pressure cooker, and it is conducive to energy-saving and emission-reduction to have application value.

Claims

1. a pressure cooker protectionEnergy saving lid, including the pot cover (1) with lid handle (13), pot cover (1) is furnished with the pressure limiting valve and other safety member with bonnet (11)；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 shell (3) and gusset set (4) and constitutes；Described shell (3) and gusset set (4) are made by plastic material；Described gusset set (4) in annular, its outer circumferential side and shell (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 shell (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) circumferential lateral surface；Described shell (3) is provided with the hole, valve position (21) for dodging pressure limiting valve bonnet (11)；Hole, described valve position (21) has complete sidewall, has suitable steam discharge space between all sides of its sidewall and bonnet (11), and its lower surface is sealed on the correspondence position of pot cover (1) outer surface；Described shell (3) and gusset set (4) are provided with the slot to make way (22) for dodging lid handle (13), and described slot to make way (22) has complete sidewall, and its lower surface is sealed on the outer surface correspondence position of pot cover (1) and lid handle (13)；Described clamshell (2) is 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 the lower surface of this hole slot of stepping down or inner face are sealed on the correspondence 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 shell (3), there is suitable spacing, so that clamshell (2) surrounds the cavity (23) of closing together with pot cover (1)；Between lower surface and the outer surface of pot cover (1) of hole, described valve position (21), there is suitable spacing；

The bottom of hole, described valve position (21) is provided with around the pressure limiting valve ring set groove (31) of a week；The sheathed cushion rubber (32) with suitable resilient of described ring set groove (31), has presetting juxtaposition metamorphose surplus between described cushion rubber (32) with the corresponding surface of pot cover (1), can keep close-fitting state with the outer surface of pot cover (1)；The bottom of described cushion rubber (32) is provided with so that the overfall (33) that connects of hole, valve position (21) and cavity (23)；Described cushion rubber (32) is in falling Y-shaped；It is provided with so that cavity (23) and the extraneous relief port (41) connected between the upper and lower sides of described gusset set (4)；Described relief port (41) has suitable size and is arranged on the same lateral position corresponding with described overfall (33), so that the profit in overfall (33) inflow cavity (23) and pot cover (1) surface flows downward out from relief port (41)；The exit position of described relief port (41) is provided with has the profit cup (7) inserting ear (71) a pair；Described shell (3) is provided with a pair jack (72) matched with slotting ear (71), makes profit cup (7) be articulated in the outside of shell (3) and the edge, downside of gusset set (4) and pot cover (1), with the profit that undertaking is discharged from relief port (41)；Described shell (3) is provided with the cap (8) matched with hole, valve position (21), and described cap (8) is cylindrical and is made up of plastic material；Described cap (8) is provided with the cage apertures (81) for dodging bonnet (11), and the upper end of described cage apertures (81) is closed state；Described cap (8) is provided with takes on (82) with described valve position hole (21) upper end week along mutually closely sealed cap；The medial wall of described shell (3) is provided with the liner (5) being made up of foamed plastic material；Between the matching surface of described liner (5) and shell (3) bonded to each other 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. pressure cooker according to claim 1 protection energy saving lid, it is characterised in that: the upper lateral part of described gusset set (4) is provided with centered by relief port (41) to both sides and along its circumferentially extending ringwise guiding gutter (42).

3. pressure cooker according to claim 2 protection energy saving lid, it is characterised in that: described guiding gutter (42) is in the shape tiltedly low gradually to described relief port (41) center from its two ends.

4. pressure cooker according to claim 1 protection energy saving lid, it is characterised in that: described cap (8) lower end outer wall is provided with the screw thread with suitable height, and hole, described valve position (21) is provided with the screw thread being matched therewith.

5. pressure cooker according to claim 1 protection energy saving lid, it is characterised in that: described liner (5) is made up of expanded polypropylene material.