CN104665575A - Oriented decompression safety electric pressure cooker - Google Patents
Oriented decompression safety electric pressure cooker Download PDFInfo
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- CN104665575A CN104665575A CN201310610919.8A CN201310610919A CN104665575A CN 104665575 A CN104665575 A CN 104665575A CN 201310610919 A CN201310610919 A CN 201310610919A CN 104665575 A CN104665575 A CN 104665575A
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Abstract
The invention discloses an oriented decompression safety electric pressure cooker. The oriented decompression safety electric pressure cooker comprises a cooker body and a cooker cover; an inner container is arranged in the cooker body; the cooker cover comprises an inner cover which comprises a cover body, a sealing ring and a fixing ring; and the sealing ring is fixed to the cover body through the fixing ring and comprises a sealing lip for sealing the inner container. The oriented decompression safety electric pressure cooker is characterized in that the fixing ring is located on the outer side of the sealing lip; an allowing opening is formed in the position, close to the bottom face of the inner container, of the fixing ring; a peripheral stopping rib is arranged on the allowing opening upwards in the peripheral direction of the fixing ring; the sealing lip is extruded into the allowing opening through the pressure in the electric pressure cooker; in addition, the sealing lip at the position of the allowing opening is outwards turned to form a pressure relief opening; and the elastic deformation quantity of the cover body ranges from 2 mm to 5 mm when the sealing lip is outwards turned to form the pressure relief opening. In this way, the oriented decompression safety electric pressure cooker has the beneficial effects that safe decompression is considered, and the cost is low.
Description
Technical field
The present invention relates to a kind of culinary cuisine utensil, especially a kind of safety electric pressure cooker of directional pressure venting.
Background technology
Current electric pressure cooking saucepan comprises pot cover and pot body, in pot body, inner bag is set, between inner bag and pot cover, inner cap is set, inside cover and sealing ring is installed, sealing ring is for realizing being tightly connected of inner bag and inner cap, inner cap, inner bag and sealing ring form culinary art cavity, and pot cover is also provided with the safety device such as air bleeding valve, safety valve.
Inventor finds, work as air bleeding valve, safety valve was because when the reasons such as blocking lost efficacy, in culinary art cavity, pressure durations raises, when rising to certain pressure, such as reach the vent pressure of 200kpa, inner cap can upwards be deformed to a certain degree, cause sealing ring can outward flanging thus produce pressure release, but it is very high owing to cooking cavity internal pressure during now pressure release, and the position of sealing ring outward flanging is random, thus the position of pressure release is not fixed when causing outside pressure release, possible vent position is in the face of user, now a large amount of high-temperature steams is discharged, cause user may be scalded by high-temperature steam, thus have impact on the safe handling of pressure cooker.
Summary of the invention
The electric pressure cooking saucepan that technical problem to be solved by this invention is to overcome the deficiencies in the prior art and provides a kind of orientable pressure release, use safety.
In order to achieve the above object, technical scheme of the present invention is as follows:
A kind of safety electric pressure cooker of directional pressure venting, comprise pot body and pot cover, inner bag is provided with in pot body, pot cover comprises inner cap, inner cap comprises lid body, sealing ring and retainer plate, sealing ring is fixed on lid body by retainer plate, sealing ring comprises the sealing lip limit of sealing inner container, it is characterized in that, retainer plate is positioned at outside sealing lip limit, described retainer plate is provided with tolerant opening near the bottom surface of inner bag, described tolerant opening is provided with circumferential shelves muscle along retainer plate circumference, sealing lip limit is squeezed in tolerant opening by the pressure in electric pressure cooking saucepan, and turn up formation pressure relief opening on the sealing lip limit of tolerant opening part, described sealing lip limit turn up formed pressure relief opening time described lid body amount of elastic deformation be 2-5mm.
In an embodiment of the present invention, described tolerant opening is the through breach of radial direction to lid body direction depression, and described circumferential shelves muscle to be positioned in breach radial direction the region beyond 1/3rd.
In an embodiment of the present invention, described circumferential shelves muscle produces plastic deformation or breaks and turned up formation pressure relief opening in the sealing lip limit of described tolerant opening part.
In an embodiment of the present invention, described circumferential shelves muscle generation plastic deformation or force value when breaking in described electric pressure cooking saucepan are 160-280kpa.
In an embodiment of the present invention, the width of described tolerant opening is 20-50mm.
In an embodiment of the present invention, the thickness of described circumferential shelves muscle is 1-3mm.
In an embodiment of the present invention, described circumferential shelves muscle is provided with and runs through opening.
In an embodiment of the present invention, the root that opening extends to described tolerant opening is run through described in.
In an embodiment of the present invention, described lid body is stainless steel cover body.
In an embodiment of the present invention, described sealing ring also comprises horizontal lip limit, described horizontal lip limit is stretched out by described sealing lip limit and is formed, and described horizontal lip limit is for sealing retainer plate and inner bag flange, and before the not upper pressure of electric pressure cooking saucepan, described sealing lip limit and side wall of inner have gap.
In an embodiment of the present invention, the bottom surface of described circumferential shelves muscle is not less than the bottom surface of described retainer plate near inner bag.
The present invention has following beneficial effect:
1, owing to being provided with tolerant opening at retainer plate near the bottom surface of inner bag, described tolerant opening is provided with circumferential shelves muscle along retainer plate circumference, sealing lip limit is squeezed in tolerant opening by the pressure in electric pressure cooking saucepan, and turn up formation pressure relief opening on the sealing lip limit of tolerant opening part, described sealing lip limit turn up formed pressure relief opening time described lid body amount of elastic deformation be 2-5mm, thus the present invention to be the circumferential shelves muscle that gone out by tolerant opening bending produces plastic deformation or break and realize pressure release, instead of realize pressure release by the distortion of this body, thus vent position is directed, user's use safety.
2, be by the flexural deformation of circumferential shelves muscle due to the present invention or break and realize pressure release, thus designer can realize by the size of the size or tolerant opening that regulate circumferential shelves muscle the size regulating vent pressure, thus facilitate in industry and manufacture.In addition, the present invention can arrange the size running through opening to further facilitate and regulate vent pressure further on circumferential shelves muscle.
3, adopt pressure release mode of the present invention in conjunction with stainless steel cover body, achieving both can safety relief, also can reach the object reduced costs.
4, sealing ring of the present invention comprises horizontal lip limit and sealing lip limit, is turned over retainer plate and inner bag all over sealing before not upper pressure by horizontal lip limit, and before not upper pressure, sealing lip limit and interior red sidewall have gap, thus inhales the problem of courage when preventing opening cover of pressure-cooker.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below the accompanying drawing used required for embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the sectional view of electric pressure cooking saucepan of the present invention;
Fig. 2 is the pot cover sectional view of electric pressure cooking saucepan of the present invention;
Fig. 3 is the stereogram of first embodiment of the invention electric pressure cooking saucepan inner cap;
Fig. 4 is the explosive view of first embodiment of the invention electric pressure cooking saucepan inner cap;
Fig. 5 is the profile of first embodiment of the invention electric pressure cooking saucepan inner cap;
Fig. 6 a is the enlarged drawing of Fig. 5 left side border circular areas;
Fig. 6 b is the enlarged drawing of border circular areas on the right of Fig. 5;
Fig. 7 is the stereogram of first embodiment of the invention electric pressure cooking saucepan retainer plate;
Fig. 8 is the enlarged drawing of Fig. 7 border circular areas;
Fig. 9 is that first embodiment of the invention electric pressure cooking saucepan circumference shelves muscle breaks the schematic diagram of pressure release state;
Figure 10 is the enlarged drawing of Fig. 9 border circular areas;
Figure 11 is the profile of second embodiment of the invention electric pressure cooking saucepan inner cap;
Figure 12 is the enlarged drawing of Figure 11 border circular areas;
Figure 13 is the stereogram of second embodiment of the invention electric pressure cooking saucepan retainer plate;
Figure 14 is the enlarged drawing of Figure 13 border circular areas;
Figure 15 is the stereogram of third embodiment of the invention electric pressure cooking saucepan retainer plate;
Figure 16 is the enlarged drawing of Figure 15 border circular areas;
Reference numeral:
10: pot cover 11: retainer 111: retainer turn-up portion
20: pot body 30: inner bag 40: inner cap
41: lid body 42,52: retainer plate 421,521: tolerant opening
422,522: circumferential shelves muscle 423: run through opening 43: sealing ring
431: sealing lip limit 432: horizontal lip limit 433: sealing ring fixed part
44: screw 60: culinary art cavity.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
First embodiment
The invention provides a kind of safety electric pressure cooker of directional pressure venting, refer to Fig. 1 and Fig. 2, electric pressure cooking saucepan comprises pot cover 10 and pot body 20, is provided with inner bag 30 in pot body 20, is provided with retainer 11 and inner cap 40 in pot cover 10, inner bag 30 is provided with buckle teeth, retainer 11 is provided with a pot tooth, and rotate retainer 11 and realize the fastening of pot tooth and buckle teeth or be separated, inner cap 40 is arranged on the below of retainer 11, after pot cover 10 is cooked with pot body 20 is closed, inner bag 30 and inner cap 40 form the culinary art cavity 60 sealed.
Refer to Fig. 3-Fig. 8, in the present invention, described inner cap 40 comprises lid body 41, sealing ring 43 and retainer plate 42, sealing ring 43 is fixed on lid body 41 by retainer plate 42, specifically, described retainer plate 42 is fixed on lid body 41 by locking device such as screw 44 grade, and described sealing ring 43 is fixed by retainer plate 42 and lid body 41.Specifically, described sealing ring 43 comprises the sealing lip limit 431 of sealing ring the fixed part 433 and sealing inner container 30 fixed by sealing ring, sealing ring fixed part 433 is clamped between retainer plate 42 and lid body 41, sealing lip limit 431 is extended to form to inner bag direction by the inner edge of sealing ring fixed part 433, and namely described sealing lip limit 431 is extended to form downwards by the inner edge of sealing ring fixed part 433.Retainer plate 42 is positioned at the outside on sealing lip limit 431, described retainer plate 42 ringwise, described retainer plate 42 is provided with tolerant opening 421 near the bottom surface of inner bag 30, described tolerant opening 421 is provided with circumferential shelves muscle 422 along retainer plate 42 circumference, sealing lip limit 431 is squeezed in tolerant opening 421 by the pressure in electric pressure cooking saucepan, the formation pressure relief opening and turn up in the sealing lip limit 431 at tolerant opening 421 place.In the present invention, the position of the corresponding described tolerant opening 421 in the position due to described pressure relief opening, thus the position of pressure relief opening is what determine, thus can prevent from damaging user.
In the present embodiment, described tolerant opening 421 is the through breach of radial direction that retainer plate 42 bottom surface is recessed to form to lid body 41 direction, described through breach runs through described lid body 41 in radial directions, namely described through breach extends to the side of external environment condition near the side of inner bag 40 radial direction from lid body 41, described through breach does not run through described lid body 41 in the vertical direction, and namely the top of described through breach also exists part lid body 41.Described circumferential shelves muscle 422 to be positioned in through breach radial direction the region beyond 1/3rd, and namely described circumferential shelves muscle 422 also exists the described through breach of about 1/3rd near this side of inner bag 40.In the present embodiment, described circumferential shelves muscle 422 is arranged in described tolerant opening 421, and be positioned at described through breach radial direction 1/2nd place, namely described circumferential shelves muscle 422 is positioned at the radial medium position of described through breach, described circumferential shelves muscle 422 is extended to form to inner bag 30 direction by lid body 41 part being positioned at described through breach top, described circumferential shelves muscle 422 is connected to lid body 41 at circumferencial direction, and namely described circumferential shelves muscle 422 is connected at the sidewall of circumferencial direction with through breach.
In the present invention, owing to being provided with circumferential shelves muscle 422 in tolerant opening 421, thus avoid tolerant opening 421 is set separately, sealing ring 43 is just easy to allow calmly opening 421 place turn up and forms the situation of pressure relief opening under low voltage situations, thus designer can regulate the size relationship of the size of tolerant opening 421 and circumferential shelves muscle 422 to control the size of vent pressure.
When using pressure cooker of the present invention, pressure cooker is when cooking, sealing lip limit 431 can be squeezed in tolerant opening 421 by the pressure in pressure cooker culinary art cavity 60, the tolerant opening 421 be arranged in inside circumferential shelves muscle 422 is squeezed into by sealing lip limit 431, pressure is by sealing lip limit 431 and the close sidewall contact of cooking cavity 60 of circumferential shelves muscle 422, work as air bleeding valve, when safety valve all lost efficacy, when pressure durations in culinary art cavity 60 raises and causes abnormal, such as, when arriving the vent pressure of 160-280kpa, due to the existence of opening 421 tolerant on retainer plate 42, other positions of strength ratio retainer plate 42 that circumference shelves muscle 422 bears pressure are weak, thus the bending generation plastic deformation of circumferential shelves muscle 422 or directly break (referring to the schematic diagram that Fig. 9 and Figure 10 circumference shelves muscle breaks), the formation pressure relief opening thus turn up in the sealing lip limit 431 at tolerant opening 421 place, thus culinary art cavity 60 in the pressure short time in carry out quick pressure releasing at this pressure relief opening place, due to the plastic deformation of circumferential shelves muscle 422 or break, and pressure cooker can not go up pressure in follow-up cooking process, thus this inner cap can not Reusability, ensure that the safety of user, user need to take maintenace point go that maintenance is carried out to inner cap 40 after or change and could normally use.
In the present embodiment, the width of described tolerant opening 421 is 20-50mm, the width of described tolerant opening 421 refers to tolerant opening 421 width in a circumferential direction, the i.e. length of described tolerant opening 421 circular arc, when the width of described tolerant opening 421 is less than 20mm, because described tolerant opening 421 size is less, even if circumference shelves muscle 422 is out of shape, circumference shelves muscle 422 is because the opening of distortion formation is also less, described sealing lip limit 431 is also difficult to turn up, thus may occur that the pressure of cooking in cavity 60 is greater than the situation of vent pressure also not pressure release, thus easily cause security incident.When the width of described tolerant opening 421 is greater than 50mm, described circumferential shelves muscle 422 is only slightly yielding, the opening that circumference shelves muscle 422 is out of shape formation is larger, thus described sealing ring 43 is easy to allow calmly opening 421 place turn up, thus cause sealing ring 43 also not arrive vent pressure just too early pressure release, thus with regard to pressure release in normal cooking process, cause also pressure release in normal use procedure, user security culinary art is had a negative impact.
In the present embodiment, the thickness of described circumferential shelves muscle 422 is 1-3mm, the thickness of described circumferential shelves muscle 422 refers to the width of circumferential shelves muscle 422 in radial direction, when the thickness of described circumferential shelves muscle 422 is less than 1mm, described circumferential shelves muscle 422 insufficient strength, when pressure does not also arrive vent pressure, described circumferential shelves muscle 422 may by sealing lip limit 431 compressive strain or will break, cause and also do not have culinary art to complete with regard to pressure release, adverse effect is caused to food cooking, and to be formed be less than the thick circumferential shelves muscle 422 of 1mm in technique be difficult to realize; When the thickness of described circumferential shelves muscle 422 is greater than 3mm, the thickness of described circumferential shelves muscle 422 is blocked up, the intensity causing circumferential shelves muscle 422 is too large, thus the pressure in culinary art cavity 60 to exceed vent pressure circumference shelves muscle 422 also indeformable or break, thus easily cause security incident.
In the present invention, the thickness of described circumferential shelves muscle 422 is less than the thickness of described retainer plate 42, and namely described circumferential shelves muscle 422 is less than the width of described retainer plate 42 at the width of radial direction, and also namely tolerant opening 421 is not filled by described circumferential shelves muscle 422 completely.In the present embodiment, refer to Fig. 6 b and Fig. 8, described circumferential shelves muscle 422 is positioned at the radial medium position of described tolerant opening 421, and the inner side of described circumferential shelves muscle 422 also exists the described tolerant opening 421 of part, and namely described circumferential shelves muscle 422 also exists the described tolerant opening of part near this side of inner bag; Also there is the described tolerant opening 421 of part in the outside of described circumferential shelves muscle 422, namely described circumferential shelves muscle 422 also exists the described tolerant opening 421 of part near that side of pressure cooker outside.
The lid body of existing electric pressure cooking saucepan is generally aluminium alloy lid body, aluminium alloy cost compare is high, the present inventor finds, stainless steel cover body obviously has cost advantage than aluminium alloy lid body, so, pressure release is realized by the plastic deformation of aluminium alloy lid body own in relative background technology, because stainless steel cover body itself has very strong elasticity and restorative, pressure drop after decompression of pressure cooker, stainless steel cover body can elasticity recover again, thus cause culinary art cavity to seal again, pressure cooker can continue again heating, thus cannot safety relief be realized, and due to pressure limiting valve, the elements such as safety valve have gone wrong, if culinary art can also be proceeded, there is very large potential safety hazard, thus stainless steel cover body can not adopt the pressure release mode in background technology.And in the present invention, be by the plastic deformation of circumferential shelves muscle 422 or break and realize safety relief, not realize pressure release by the distortion of lid body, thus, lid body both can adopt stainless steel cover body also can adopt aluminium alloy lid body by the present inventor, preferably, in the present embodiment, described lid body 41 adopts stainless steel cover body 41, pressure release is realized due to tolerant opening 421 and circumferential shelves muscle 422 can be adopted, and do not need to adopt the distortion of stainless steel cover body 41 itself to carry out pressure release, thus the inner cap 40 of the present embodiment can realize the object of saving cost and safety relief.
Specifically, in the present embodiment, the lid body 41 of described inner cap 40 is stainless steel cover body 41, described retainer plate 42 is provided with tolerant opening 421 near the bottom surface of inner bag 30, described tolerant opening 421 is provided with circumferential shelves muscle 422 along retainer plate 42 circumference, thus, when cooking pressure durations rising in cavity 60, described stainless steel cover body 41 can produce elastic deformation to the direction contrary with inner bag 30, simultaneously, sealing lip limit 431 is squeezed in tolerant opening 421 by the pressure in culinary art cavity 60, when stainless steel cover body 41 is 2-5mm to the direction amount of elastic deformation that inner bag 30 is contrary, the corresponding vent pressure of pressure in described culinary art cavity 60, vent pressure is at about 160-280kpa, now, be positioned at sealing lip limit 431 outside tolerant opening 421 also not the strephexopodia to form pressure relief opening, and the pressure that the sealing lip limit 431 being positioned at tolerant opening part produces makes, and circumferential shelves muscle 422 is bending to be produced plastic deformation or breaks, thus turned up formation pressure relief opening in sealing lip limit 431, thus realize safety relief, after the Pressure Drop in culinary art cavity 60 gets off, due to the plastic deformation of circumferential shelves muscle 422 or break, described electric pressure cooking saucepan can in the exhaust of tolerant opening 421 place, thus culinary art cavity 60 can not realize sealing, thus user needs maintenance store to keep in repair inner cap 40.
In the present invention, the plastic deformation of described circumferential shelves muscle 422 or the required pressure that breaks be less than described lid body 41 upwards elastic deformation make sealing ring 43 entirety to the pressure turned up needed for pressure release, thus the present invention is by the plastic deformation of circumferential shelves muscle 422 or breaks and carry out safety relief.
In addition, in the present invention, the bottom surface of described circumferential shelves muscle 422 is not less than described retainer plate 42 near the bottom surface of inner bag 30, namely the bottom surface of the bottom surface of described circumferential shelves muscle 422 or described circumferential shelves muscle 422 concordant near the bottom surface of inner bag 30 with described retainer plate 42 higher than described retainer plate 42 near the bottom surface of inner bag 30, near the bottom surface of inner bag 30, the bottom surface of described circumferential shelves muscle 422 refers to that described circumferential shelves muscle 422 is supported or opposed to the direction of inner bag 30 higher than described retainer plate 42 and caves in, designer design time can design circumferential shelves muscle 422 depression number to adjust the size of vent pressure.
In addition, refer to Fig. 6 a and Fig. 6 b, in the present embodiment, described sealing ring 43 also comprises horizontal lip limit 432, described horizontal lip limit 432 is stretched out by described sealing lip limit 431 and is formed, described horizontal lip limit 432 is for sealing retainer plate 42 and inner bag 30 flange, and before the not upper pressure of electric pressure cooking saucepan, there is gap on described sealing lip limit 431 with inner bag 30 sidewall.Thus, after food cooking completes, in described culinary art cavity 60, pressure release completes, now, be in electric pressure cooking saucepan and do not go up pressure condition, inner bag 30 and inner cap 40 are sealed by horizontal lip limit 432, and have gap between sealing lip limit 431 and inner bag 30 sidewall, thus inhale the problem of courage when can prevent from uncapping.
In addition, refer to Fig. 1 and Fig. 2, in the present embodiment, described retainer 11 also adopts stainless steel retainer 11, during fabrication, incision is sharper for retainer 11, and retainer 11 needs rotation realize with the fastening of inner bag 30 or trip, when rotated, retainer 11 pot cover 10 part that easily scratch is corresponding with otch, in order to prevent this kind of problem, the present inventor proposes to bend in the incision of retainer 11, form retainer turn-up portion 111, thus reach the problem preventing scratch pot cover 10.
Second embodiment
Figure 11 is the profile of second embodiment of the invention electric pressure cooking saucepan inner cap, and the structure of Figure 11 is similar to the structure of Fig. 5, the element that therefore identical numbers is identical, and the main difference point of the present embodiment and the first embodiment is the setting of structure on retainer plate.
Refer to Figure 11-Figure 14, in the present embodiment, described retainer plate 52 is provided with tolerant opening 521 near the bottom surface of inner bag 30, described tolerant opening 521 is the through breach of radial direction that retainer plate 42 bottom surface is recessed to form to lid body 41 direction, described circumferential shelves muscle 522 to be positioned in through breach radial direction the region beyond 1/3rd, in the present embodiment, described in described circumferential shelves muscle 522 is positioned at, run through the outer most edge of breach, namely described circumferential shelves muscle 522 be positioned at described in run through breach one end away from described inner bag 40.
In the present embodiment, when the pressure durations in pressure cooker culinary art cavity 60 raises, sealing lip limit 431 can be squeezed in tolerant opening 521 by the pressure in described culinary art cavity 60, pressure is by sealing lip limit 531 and the close sidewall contact of cooking cavity 60 of circumferential shelves muscle 522, when cooking the pressure in cavity 60 and exceeding vent pressure, such as, when the pressure of cooking in cavity 60 reaches 160-280kpa, now, pressure in culinary art cavity 60 forces the bending generation plastic deformation of circumferential shelves muscle 522 or directly breaks, thus the sealing lip limit 431 at tolerant opening 521 place is to the formation pressure relief opening that turns up, thus culinary art cavity 60 in the pressure short time in carry out quick pressure releasing at this pressure relief opening place, because circumferential shelves muscle 522 is out of shape or breaks, thus pressure cooker can not go up pressure in follow-up cooking process, ensure that the safety of user, user needs to take maintenace point and goes to keep in repair inner cap 40.
3rd embodiment
Figure 15 is the stereogram of third embodiment of the invention electric pressure cooking saucepan retainer plate, and the structure of Figure 15 is similar to the structure of Fig. 7, the element that therefore identical numbers is identical, and the main difference point of the present embodiment and the first embodiment is the setting at circumferential shelves muscle place.
Refer to figure Figure 15 and Figure 16, in the present embodiment, described retainer plate 42 is provided with tolerant opening 421 near the bottom surface of inner bag 30, and described tolerant opening 421 is the through breach that retainer plate 42 bottom surface is recessed to form to lid body 41 direction.Described circumferential shelves muscle 422 is arranged on described tolerant opening 421, and in the present embodiment, described circumferential shelves muscle 422 is provided with and runs through opening 423.
Specifically, in the present embodiment, the described opening 423 that runs through runs through described circumferential shelves muscle 422 diametrically, namely run through opening 423 described in and run through described circumferential shelves muscle 422 on circumferential shelves muscle 422 thickness direction, preferably, the described quantity running through opening 423 is set to two, and these two run through opening 423 and are separately positioned on the position that circumferential shelves muscle 422 contacts with retainer plate 42, and namely described circumferential shelves muscle 422 and described retainer plate 42 have part to be do not contact in circumferential direction.Certainly, in other embodiments of the invention, other positions that opening can also be arranged on circumferential shelves muscle are run through described in.In the present embodiment, described in run through the root that opening 423 can extend to described tolerant opening 421, the height running through opening 423 is namely identical with the height of described circumferential shelves muscle 422.In the present embodiment, run through opening 423 owing to being provided with on circumferential shelves muscle 422, thus the pressure regulating the flexural deformation of circumferential shelves muscle 422 or break correspondence can be further facilitated, thus be conducive to commercialization.
In sum, in the present invention, described retainer plate is provided with tolerant opening near the bottom surface of inner bag, described tolerant opening is provided with circumferential shelves muscle along retainer plate circumference, sealing lip limit is squeezed in tolerant opening by the pressure in electric pressure cooking saucepan, and turn up formation pressure relief opening on the sealing lip limit of tolerant opening part, described sealing lip limit turn up formed pressure relief opening time described lid body amount of elastic deformation be 2-5mm.Thus directional pressure venting can be realized, thus reach the object of safety relief; And the lid body of described inner cap adopts stainless steel cover body, can reach the object of falling this.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (11)
1. the safety electric pressure cooker of a directional pressure venting, comprise pot body and pot cover, inner bag is provided with in pot body, pot cover comprises inner cap, inner cap comprises lid body, sealing ring and retainer plate, sealing ring is fixed on lid body by retainer plate, sealing ring comprises the sealing lip limit of sealing inner container, it is characterized in that, retainer plate is positioned at outside sealing lip limit, described retainer plate is provided with tolerant opening near the bottom surface of inner bag, described tolerant opening is provided with circumferential shelves muscle along retainer plate circumference, sealing lip limit is squeezed in tolerant opening by the pressure in electric pressure cooking saucepan, and turn up formation pressure relief opening on the sealing lip limit of tolerant opening part, described sealing lip limit turn up formed pressure relief opening time described lid body amount of elastic deformation be 2-5mm.
2. the safety electric pressure cooker of directional pressure venting as claimed in claim 1, is characterized in that, described tolerant opening is the through breach of radial direction to lid body direction depression, and described circumferential shelves muscle to be positioned in breach radial direction the region beyond 1/3rd.
3. the safety electric pressure cooker of directional pressure venting as claimed in claim 1, is characterized in that, described circumferential shelves muscle produces plastic deformation or breaks and turned up formation pressure relief opening in the sealing lip limit of described tolerant opening part.
4. the safety electric pressure cooker of directional pressure venting as claimed in claim 3, is characterized in that, described circumferential shelves muscle produces plastic deformation or force value when breaking in described electric pressure cooking saucepan is 160-280kpa.
5. the safety electric pressure cooker of the directional pressure venting as described in one of claim 1-4, is characterized in that, the width of described tolerant opening is 20-50mm.
6. the safety electric pressure cooker of the directional pressure venting as described in one of claim 1-4, is characterized in that, the thickness of described circumferential shelves muscle is 1-3mm.
7. the safety electric pressure cooker of the directional pressure venting as described in one of claim 1-4, is characterized in that, described circumferential shelves muscle is provided with and runs through opening.
8. the safety electric pressure cooker of directional pressure venting as claimed in claim 7, is characterized in that, described in run through the root that opening extends to described tolerant opening.
9. the safety electric pressure cooker of the directional pressure venting as described in one of claim 1-4, is characterized in that, described lid body is stainless steel cover body.
10. the safety electric pressure cooker of the directional pressure venting as described in one of claim 1-4, it is characterized in that, described sealing ring also comprises horizontal lip limit, described horizontal lip limit is stretched out by described sealing lip limit and is formed, described horizontal lip limit is for sealing retainer plate and inner bag flange, and before the not upper pressure of electric pressure cooking saucepan, described sealing lip limit and side wall of inner have gap.
The safety electric pressure cooker of 11. directional pressure ventings as described in one of claim 1-4, it is characterized in that, the bottom surface of described circumferential shelves muscle is not less than the bottom surface of described retainer plate near inner bag.
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| CN201310610919.8A CN104665575B (en) | 2013-11-26 | 2013-11-26 | Oriented decompression safety electric pressure cooker |
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| CN201310610919.8A CN104665575B (en) | 2013-11-26 | 2013-11-26 | Oriented decompression safety electric pressure cooker |
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| CN104665575B CN104665575B (en) | 2017-02-01 |
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Cited By (6)
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| CN105795927A (en) * | 2016-04-27 | 2016-07-27 | 珠海格力电器股份有限公司 | Sealing ring fixing device and electric pressure cooker with same |
| CN106235892A (en) * | 2016-08-26 | 2016-12-21 | 珠海格力电器股份有限公司 | Electric cooker and cooker opening sealing ring thereof |
| CN107811522A (en) * | 2016-09-14 | 2018-03-20 | 佛山市顺德区美的电热电器制造有限公司 | Seal assembly and cooking equipment for cooking equipment |
| CN107969940A (en) * | 2016-10-24 | 2018-05-01 | Seb公司 | The household cooking appliance of heating including ring washer |
| CN108784303A (en) * | 2018-08-09 | 2018-11-13 | 珠海格力电器股份有限公司 | Cover plate assembly and cooking utensil comprising same |
| CN109419330A (en) * | 2017-09-01 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Cover assembly and cooking apparatus |
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| CN2415699Y (en) * | 2000-04-03 | 2001-01-24 | 舒岳光 | Antiexplosive sealing ring device for pressure cooker |
| CN2484012Y (en) * | 2001-06-17 | 2002-04-03 | 张其荣 | Safety pressure cooker |
| CN202761031U (en) * | 2012-06-28 | 2013-03-06 | 九阳股份有限公司 | Pressure soy milk grinder |
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| CN105795927A (en) * | 2016-04-27 | 2016-07-27 | 珠海格力电器股份有限公司 | Sealing ring fixing device and electric pressure cooker with same |
| CN106235892A (en) * | 2016-08-26 | 2016-12-21 | 珠海格力电器股份有限公司 | Electric cooker and cooker opening sealing ring thereof |
| CN107811522A (en) * | 2016-09-14 | 2018-03-20 | 佛山市顺德区美的电热电器制造有限公司 | Seal assembly and cooking equipment for cooking equipment |
| CN107969940A (en) * | 2016-10-24 | 2018-05-01 | Seb公司 | The household cooking appliance of heating including ring washer |
| CN107969940B (en) * | 2016-10-24 | 2022-11-01 | Seb公司 | Heated household cooking appliance comprising a ring gasket |
| CN109419330A (en) * | 2017-09-01 | 2019-03-05 | 佛山市顺德区美的电热电器制造有限公司 | Cover assembly and cooking apparatus |
| CN109419330B (en) * | 2017-09-01 | 2020-12-15 | 佛山市顺德区美的电热电器制造有限公司 | Lid subassembly and cooking utensil |
| CN108784303A (en) * | 2018-08-09 | 2018-11-13 | 珠海格力电器股份有限公司 | Cover plate assembly and cooking utensil comprising same |
| CN108784303B (en) * | 2018-08-09 | 2024-06-04 | 珠海格力电器股份有限公司 | Cover plate assembly and cooking appliance comprising same |
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Address after: 250118 999 Mei Li Road, Huaiyin District, Ji'nan, Shandong Patentee after: Joyoung Company Limited Address before: Xinsha Road, Huaiyin District of Ji'nan city of Shandong Province, No. 12 250118 Patentee before: Joyoung Company Limited |