CN208709536U - Cooking equipment and its upper cover - Google Patents

Abstract

It includes: sealing element that the utility model, which provides a kind of cooking equipment and its upper cover, upper cover, including sealing inner ring and sealed outer ring, seals inner ring nested arrangement in the inside of sealed outer ring；Cover board, with sealing inner ring and sealed outer ring against cover board is equipped with gas outlet, seals the space that interior corral is set out and is connected to gas outlet, and cover board, which is located at the position between sealing inner ring and sealed outer ring, is equipped with raised position limiting structure.The cooking equipment that this programme provides, using raised position limiting structure can sealed outer ring along lid surface move to raised position limiting structure against position when sealed outer ring is carried out against limit, prevent sealed outer ring from continuing to move inward and in-flanges problem occur, and raised position limiting structure can seal inner ring along lid surface move to raised position limiting structure against position when sealing inner ring is carried out against limit, prevent sealing inner ring from continuing to be displaced outwardly and flanging problem occur, it is ensured that positive/negative-pressure sealing reliability.

Description

Cooking equipment and its upper cover

Technical field

The utility model relates to kitchen appliance fields, upper cover and a kind of culinary art in particular to a kind of cooking equipment Equipment.

Background technique

Positive/negative-pressure cooks the cooking equipments such as electric pressure cooking saucepan during the cooking process, different time sections pressure cooker internal pressure or is It just or is negative, to realize closed environment inside pot, gas outlet need to be sealed, sealing element is generally silica gel material, works as positive pressure Or negative pressure it is excessive when, sealing element is easy to appear flange problem, leads to seal failure.

Utility model content

At least one in order to solve the above-mentioned technical problem, one of the utility model is designed to provide a kind of cooking equipment Upper cover.

Another of the utility model is designed to provide a kind of cooking equipment of upper cover with above-mentioned cooking equipment.

To achieve the above object, the embodiment of the utility model first aspect provides a kind of upper cover of cooking equipment, packet Include: sealing element, including sealing inner ring and sealed outer ring, the sealing inner ring nested arrangement is in the inside of the sealed outer ring；Lid Plate, with the sealing inner ring and the sealed outer ring against the cover board is equipped with gas outlet, and corral is set out in the sealing Space is connected to the gas outlet, and the cover board is located at the position between the sealing inner ring and the sealed outer ring equipped with convex Play position limiting structure.

The upper cover of the utility model cooking equipment provided by the above embodiment is located at sealing inner ring and sealed outer ring on cover board Between position at be equipped with raised position limiting structure, when being in negative pressure state in the cooking cavity being connected to gas outlet, sealed outer ring It is mainly acted on by inside atmospheric pressure, can be limited when sealed outer ring is moved to along lid surface with protrusion using raised position limiting structure Bit architecture against position when sealed outer ring is carried out against limit, prevent sealed outer ring from continuing to move inward and in-flanges occur and ask Topic, when being in barotropic state in the cooking cavity being connected to gas outlet, sealing inner ring is mainly acted on by outside atmospheric pressure, benefit With raised position limiting structure can seal inner ring along lid surface move to raised position limiting structure against position when in sealing Circle is carried out against limit, prevents sealing inner ring from continuing to be displaced outwardly and flanging problem occur, so that it is guaranteed that positive/negative-pressure sealed reliable Property.

In addition, the upper cover of the cooking equipment in above-described embodiment provided by the utility model can also have additional skill as follows Art feature:

In above-mentioned technical proposal, the protrusion position limiting structure includes annular convex rib, and the annular convex rib nested arrangement is in institute It states at the position between sealed outer ring and the sealing inner ring.

In the present solution, it includes annular convex rib that raised position limiting structure, which is arranged, annular convex rib can by it is one time punching molded Lid surface has the advantages that easy to process, high in machining efficiency, Forming Quality is high, wherein sealing inner ring, annular convex rib and close Envelope forms from inside to outside the form of successively nested arrangement between outer ring, it is to be understood that gas pressure power in sealing inner ring and The distribution on sealed outer ring surface is substantially uniform, can be formed to the entire border of sealing inner ring and sealed outer ring using the annular convex rib It uniformly against limit, can make the deformation quantity for sealing inner ring and the sealed outer ring border in pressure-bearing uniform in this way, be conducive to be promoted The bearing capacity and sealing effect of sealed outer ring and sealing inner ring avoid sealed outer ring and sealing inner ring irreversible transformation or gas leakage Problem above are only the optimal technical scheme of the design certainly, and this programme is actually not limited thereto, for example, to realize phase Same purpose, it includes multiple convex ribs that those skilled in the art, which can also design raised position limiting structure, and can make multiple convex ribs circumferentially Compartment of terrain arrangement, and the spacing distance by rationally designing adjacent convex ribs realize to sealing inner ring and sealed outer ring uniformly against The purpose of limit, it is to be understood that realize the mesh to sealing inner ring and sealed outer ring against limit to solve the problems, such as flange , there are many raised enforceable concrete forms of position limiting structure, will not enumerate herein, but do not departing from the design design Under the premise of belong to the protection scope of this programme.

In above-mentioned technical proposal, the diameter of the sealed outer ring axial ends is different, wherein the sealed outer ring is straight The biggish one end of diameter is located at the outside of the annular convex rib and with the cover board against described lesser one end of sealed outer ring diameter The internal diameter D1 at place and the outer diameter D 3 of the annular convex rib meet: D1 < D3.

In the present solution, it is understood that the internal diameter of one end that sealed outer ring is relatively large in diameter is at least more than annular convex rib Outer diameter D 3, so that sealed outer ring is nested in the outside of annular convex rib, wherein the internal diameter at the lesser one end of sealed outer ring diameter The outer diameter D 3 of D1 and annular convex rib meets: D1 < D3, in this way, forming nested relative positional relationship with annular convex rib in sealed outer ring When, at the outer fix of the interior endpoint at the outer end of annular convex rib at the lesser one end of sealed outer ring diameter, in this way, convex annular When the outer end of muscle and sealed outer ring are formed against limit, the position of one end that sealed outer ring is relatively large in diameter will not be inwardly over sealing Outer ring inner terminal position, namely be not in in-flanges problem, further lifting negative pressure sealing reliability, and can effectively will be close The deflection for sealing outer ring limits in a certain range, conducive to the service life for extending sealed outer ring.

In above-mentioned technical proposal, the diameter of the sealing inner ring axial ends is different, wherein the sealing inner ring is straight The lesser one end of diameter is located at the inside of the annular convex rib and with the cover board against the biggish one end of the sealing inner ring diameter The internal diameter D2 at place and the internal diameter D4 of the annular convex rib meet: D2 < D4.

In the present solution, it is understood that the outer diameter of sealing lesser one end of inner ring diameter is at least below annular convex rib Internal diameter D4, enable annular convex rib be nested in sealing inner ring outside, wherein sealing the biggish one end of inner ring diameter at internal diameter The internal diameter D4 of D2 and annular convex rib meets: D2 < D4, and sealing inner ring is made to have certain outside deformation space, in this way can be into one Sealing inner ring crosses annular convex rib structure and flange problem occurs when step prevents culinary art positive intraluminal pressure excessive, and it is reliable to strengthen positive seal Property.

In above-mentioned technical proposal, the diameter of the sealing inner ring axial ends is different, wherein the sealing inner ring is straight The lesser one end of diameter is located at the inside of the annular convex rib and with the cover board against the biggish one end of the sealing inner ring diameter The outer diameter D 5 at place and the internal diameter D4 of the annular convex rib meet: D4 < D5.

In the present solution, it is understood that the outer diameter of sealing lesser one end of inner ring diameter is at least below annular convex rib Internal diameter D4, enable annular convex rib be nested in sealing inner ring outside, wherein sealing the biggish one end of inner ring diameter at outer diameter The internal diameter D4 of D5 and annular convex rib meets: D4 < D5, in this way, forming nested relative positional relationship with annular convex rib in sealing inner ring When, at the inner side of the outer end point at the inner end of annular convex rib at sealing biggish one end of inner ring diameter, in this way, convex annular When the inner end of muscle and sealing inner ring are formed against limit, the position of sealing lesser one end of inner ring diameter will not be outwardly over sealing The position of inner ring outermost end, namely be not in flanging problem, it is ensured that positive seal reliability, and can effectively will be in sealing The deflection limitation of circle in a certain range, the service life of inner ring is sealed conducive to extension.

In any of the above-described technical solution, the cover board be used for the sealed outer ring against surface be plane and/or institute State cover board for it is described sealing inner ring against surface be plane.

In the present solution, setting cover board be used for and sealed outer ring against surface be plane, can be conducive to lifting negative pressure seal Reliability avoids leakage problem；Be arranged cover board for sealing inner ring against surface be plane, can be conducive to promoted positive seal Reliability avoids leakage problem.

In above-mentioned technical proposal, the cover board is equipped with groove or boss, and the cover board with the sealed outer ring for supporting The surface leaned on is the groove bottom of the groove or the top surface of the boss and/or the cover board for supporting with the sealing inner ring The surface leaned on is the groove bottom of the groove or the top surface of the boss.

Be used in the present solution, groove or boss are arranged on cover board, cover board and sealed outer ring against surface groove Groove bottom or boss top surface, can have the function of positioning cover board and sealed outer ring cooperation, conducive to assembling product is promoted Yields, and/or make cover board for sealing inner ring against surface groove groove bottom or boss top surface, can have pair The effect of cover board and sealing inner ring cooperation positioning, conducive to the yields for promoting assembling product.

In any of the above-described technical solution, the cover board be used for the sealed outer ring against surface and for it is described close Envelope inner ring against surface be in sustained height or the cover board be used for the sealed outer ring against surface and be used for and institute State sealing inner ring against surface between there are differences in height.

In any of the above-described technical solution, the cover board be used for the sealed outer ring against surface be annular surface, it is described The outer diameter of annular surface is bigger than the outer diameter of the sealed outer ring, and difference is 0.5mm~10mm.

In the present solution, on cover board be equipped with annular surface be used for and sealed outer ring against, and design annular surface outer diameter than close Big 0.5mm~the 10mm of outer diameter for sealing outer ring, may insure the sealing reliability between cover board and sealed outer ring in this way, avoids deviation Caused leakage problem.

In any of the above-described technical solution, the cover board be used for the sealed outer ring against surface and the annular convex rib The difference in height of top surface be 0.5mm~5mm and/or the cover board be used for the sealing inner ring against surface and the annular The difference in height of convex tendon top surface is 0.5mm~5mm.

In the present solution, design cover board be used for and sealed outer ring against surface and the difference in height of annular convex rib top surface be 0.5mm~5mm makes annular convex rib have certain height, may insure that annular convex rib can against limit to sealed outer ring in this way Lean on, prevent sealed outer ring from crossing annular convex rib and in-flanges problem occur, conversely, annular convex rib height without exceed 5mm, this While ensuring to limit reliable, the difficulty of processing of annular convex rib can also be reduced；Design cover board be used for sealing inner ring against table The difference in height of face and annular convex rib top surface is 0.5mm~5mm, so that annular convex rib is had certain height, may insure ring in this way Shape convex ribs are reliable against limit to sealing inner ring, prevent sealing inner ring from crossing annular convex rib and flanging problem occur, conversely, annular For fin height without 5mm is exceeded, this can also reduce the difficulty of processing of annular convex rib while ensuring to limit reliable.

In any of the above-described technical solution, the upper cover of the cooking equipment further includes inner cover, wherein the sealing element also wraps Include: interconnecting piece is connect with the sealing inner ring and the sealed outer ring；Mounting portion, the mounting portion are assemblied in described and cover, The mounting portion is equipped with the intercommunicating pore being connected to the gas outlet.

In the present solution, setting interconnecting piece connects sealed outer ring with sealing inner ring, mounting portion is connected with interconnecting piece to be used for It is assembled with inner cover, in favor of the positioning synchronous with sealed outer ring realization of sealing inner ring, assembling difficulty is reduced, conducive to the group for promoting product Efficiency and yields are filled, it is highly preferred that one end of sealing inner ring axial direction and one end of sealed outer ring axial direction are connect with interconnecting piece, it is close Seal inner ring axial direction the other end and sealed outer ring axial direction the other end and cover board against.

In above-mentioned technical proposal, the upper cover of the cooking equipment further include: air extractor, the air extractor have air inlet Connector, the inlet suction port are arranged in the intercommunicating pore.

In the present solution, being equipped with inlet suction port on air extractor, being allowed to be connected to realization sealing element in intercommunicating pore and taking out Device of air connection, and realize that air extractor, sealing element and cooking cavity three connect, structure is simple, easy to assembly.

In above-mentioned technical proposal, the hole wall of the intercommunicating pore is equipped with protrusion, and the inlet suction port is assemblied in the connection The gap between the inlet suction port and the hole wall is sealed in hole and by the protrusion.

In the present solution, on intercommunicating pore hole wall be arranged convex protrusion, inlet suction port wear access intercommunicating pore when utilization Protrusion and inlet suction port against inlet suction port interference is mounted in intercommunicating pore, it can be achieved that inlet suction port assembly it is reliable and stable, and Protrusion can be to the gap sealing between inlet suction port outer surface and intercommunicating pore hole wall, gas leakage when air extractor being avoided to be evacuated, and is promoted Pumping efficiency.

The embodiment of the utility model second aspect provides a kind of cooking equipment, comprising: in any of the above-described technical solution The upper cover of the cooking equipment；Cookware, the cover board of the upper cover are limited jointly with the cookware when covering the cookware and are cooked It prepares food chamber, the gas outlet of the cover board is connected to the cooking cavity.

The utility model cooking equipment provided by the above embodiment, by being provided with described in any of the above-described technical solution The upper cover of cooking equipment, to have all of the above beneficial effect, details are not described herein.

Optionally, the cooking equipment is minute-pressure rice cooker, electric pressure cooking saucepan or steam oven etc..

The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this The practice of type is recognized.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the partial structural diagram of the upper cover of cooking equipment described in the utility model one embodiment；

Fig. 2 is the schematic cross-sectional view of A-A portion shown in Fig. 1；

Fig. 3 is the enlarged structure schematic diagram of B portion shown in Fig. 2；

Fig. 4 is the schematic cross-sectional view of sealing element described in the utility model one embodiment；

Fig. 5 is the structural schematic diagram of cooking equipment described in the utility model one embodiment.

Wherein, the corresponding relationship between appended drawing reference and component names of the Fig. 1 into Fig. 5 are as follows:

10 sealing elements, 11 sealing inner rings, 12 sealed outer rings, 13 interconnecting pieces, 14 mounting portions, 141 intercommunicating pores, 143 protrusions, 20 Cover board, 21 gas outlets, 22 annular convex ribs, 221 inner ring surfaces, 222 outer ring surfaces, 23 external grooves, 231 medial plane regions, 24 indents Slot, 241 inner side plane regions, 30 inner covers, 40 air extractors, 41 suction elements, 42 tracheaes, 431 inlet suction ports, 44 air valves, 50 Cookware, 60 cooker bodies.

Specific embodiment

In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen The feature in embodiment and embodiment please can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical Novel to be implemented using other than the one described here other modes, therefore, the protection scope of the utility model is simultaneously It is not limited by the specific embodiments disclosed below.

Cooking equipment and its upper cover according to the utility model some embodiments are described referring to Fig. 1 to Fig. 5.

As shown in Figure 2, Figure 3 and Figure 4, the upper cover for the cooking equipment that the embodiment of the utility model first aspect provides, packet It includes: sealing element 10 and cover board 20.

Specifically, sealing element 10 includes sealing inner ring 11 and sealed outer ring 12, and sealing 11 nested arrangement of inner ring is outer in sealing The inside of circle 12；Cover board 20 and sealing inner ring 11 and sealed outer ring 12 are against cover board 20 is equipped with gas outlet 21, seals inner ring 11 It encloses the space set out to be connected to gas outlet 21, cover board 20 is located at the position between sealing inner ring 11 and sealed outer ring 12 equipped with convex Play position limiting structure.

The upper cover of the utility model cooking equipment provided by the above embodiment is located at sealing inner ring 11 and sealing on cover board 20 Raised position limiting structure is equipped at position between outer ring 12, when being in negative pressure state in the cooking cavity being connected to gas outlet 21, Sealed outer ring 12 is mainly acted on by inside atmospheric pressure, can be in sealed outer ring 12 along 20 surface of cover board using raised position limiting structure Move to raised position limiting structure against position when sealed outer ring 12 is carried out against limit, prevent sealed outer ring 12 continue to There is in-flanges problem in interior movement, and when being in barotropic state in the cooking cavity being connected to gas outlet 21, sealing inner ring 11 is main It is acted on by outside atmospheric pressure, can be limited along 20 apparent motion of cover board to protrusion in sealing inner ring 11 using raised position limiting structure Bit architecture against position when sealing inner ring 11 is carried out against limit, prevent sealing inner ring 11 from continuing to be displaced outwardly and turn up Side problem, it is ensured that positive/negative-pressure sealing reliability.

In one embodiment of the utility model, it is preferable that raised position limiting structure includes annular convex rib 22, annular convex rib 22 nested arrangements are at the position between sealed outer ring 12 and sealing inner ring 11.

In the present solution, it includes annular convex rib 22 that raised position limiting structure, which is arranged, annular convex rib 22 can be by once striking out Type has the advantages that easy to process, high in machining efficiency, Forming Quality is high on 20 surface of cover board, wherein sealing inner ring 11, annular The successively form of nested arrangement from inside to outside is formed between convex ribs 22 and sealed outer ring 12, it is to be understood that gas pressure power Distribution on sealing inner ring 11 and 12 surface of sealed outer ring is substantially uniform, can be to sealing inner ring 11 and close using the annular convex rib 22 The entire border of envelope outer ring 12 is formed uniformly against limit, can make to seal inner ring 11 and sealed outer ring 12 in this way in pressure-bearing The deformation quantity of border is uniform, conducive to the bearing capacity and sealing effect of lift-off seal outer ring 12 and sealing inner ring 11, avoids sealing Outer ring 12 and sealing 11 irreversible transformation of inner ring or leakage problem above are only the optimal technical scheme of the design certainly, we Case is actually not limited thereto, for example, to realize identical purpose, those skilled in the art can also design raised position limiting structure packet Multiple convex ribs are included, and multiple convex ribs can be made to arrange circumferentially spacedly, and the spacing distance by rationally designing adjacent convex ribs To realize to sealing inner ring 11 and sealed outer ring 12 uniformly against the purpose of limit, it is to be understood that realize in sealing Circle 11 and sealed outer ring 12 solve the problems, such as the purpose of flange against limit, and the raised enforceable concrete form of position limiting structure has more Kind, it will not enumerate herein, but the protection scope of this programme is belonged under the premise of not departing from the design and conceiving.

More specifically, as shown in Figures 2 and 3, the quantity of annular convex rib 22 can be one, specifically, the annular convex rib 22 include outer ring surface 222 and inner ring surface 221, and outer ring surface 222 is used for sealed outer ring 12 against with limit, and inner ring surface 221 is used for With sealing inner ring 11 against with limit, alternatively, the quantity of annular convex rib 22 is two, respectively inside convex ribs and outside convex ribs, The outside of inside convex ribs is arranged in outside convex ribs nesting, and outside convex ribs are used for sealed outer ring 12 against with limit, inside convex ribs For with sealing inner ring 11 against with limit.

In one embodiment of the utility model, as shown in figure 3, the diameter of 12 axial ends of sealed outer ring is not Together, wherein one end that sealed outer ring 12 is relatively large in diameter is located at the outside of annular convex rib 22 and with cover board 20 against sealed outer ring 12 The outer diameter D 3 of internal diameter D1 and annular convex rib 22 at the lesser one end of diameter meet: D1 < D3.Preferably, sealed outer ring 12 is in circle Platform shape.

In the present solution, it is understood that the internal diameter of one end that sealed outer ring 12 is relatively large in diameter is at least more than convex annular The outer diameter D 3 of muscle 22, enables sealed outer ring 12 to be nested in the outside of annular convex rib 22, wherein 12 diameter of sealed outer ring lesser one The outer diameter D 3 of internal diameter D1 and annular convex rib 22 at end meet: D1 < D3, in this way, in sealed outer ring 12 and the formation of annular convex rib 22 When nested relative positional relationship, interior endpoint at the outer end of annular convex rib 22 at the lesser one end of 12 diameter of sealed outer ring it is outer At side position, in this way, when the outer end of annular convex rib 22 and sealed outer ring 12 are formed against limit, what sealed outer ring 12 was relatively large in diameter The position of one end will not be inwardly over 12 inner terminal position of sealed outer ring, namely is not in in-flanges problem, is further promoted Negative-pressure sealing reliability, and can effectively limit the deflection of sealed outer ring 12 in a certain range, it is conducive to extend outside sealing The service life of circle 12.

In one embodiment of the utility model, as shown in figure 3, the diameter of sealing 11 axial ends of inner ring is not Together, wherein sealing lesser one end of 11 diameter of inner ring is located at the inside of annular convex rib 22 and with cover board 20 against sealing inner ring 11 The internal diameter D4 of internal diameter D2 and annular convex rib 22 at the one end being relatively large in diameter meet: D2 < D4.Preferably, sealing inner ring 11 is in circle Platform shape.

In the present solution, it is understood that the outer diameter of sealing lesser one end of 11 diameter of inner ring is at least below convex annular The internal diameter D4 of muscle 22 enables annular convex rib 22 to be nested in the outside of sealing inner ring 11, wherein seals inner ring 11 is relatively large in diameter one The internal diameter D4 of internal diameter D2 and annular convex rib 22 at end meet: D2 < D4 makes sealing inner ring 11 have certain outside deformation empty Between, sealing inner ring 11, which crosses 22 structure of annular convex rib and flange occurs, when can further prevent culinary art positive intraluminal pressure excessive in this way asks Topic strengthens positive seal reliability.

In one embodiment of the utility model, as shown in figure 3, the diameter of sealing 11 axial ends of inner ring is not Together, wherein sealing lesser one end of 11 diameter of inner ring is located at the inside of annular convex rib 22 and with cover board 20 against sealing inner ring 11 The internal diameter D4 of outer diameter D 5 and annular convex rib 22 at the one end being relatively large in diameter meets: D4 < D5.Preferably, sealing inner ring 11 is in circle Platform shape.

In the present solution, it is understood that the outer diameter of sealing lesser one end of 11 diameter of inner ring is at least below convex annular The internal diameter D4 of muscle 22 enables annular convex rib 22 to be nested in the outside of sealing inner ring 11, wherein seals inner ring 11 is relatively large in diameter one The internal diameter D4 of outer diameter D 5 and annular convex rib 22 at end meets: D4 < D5, in this way, in sealing inner ring 11 and the formation of annular convex rib 22 When nested relative positional relationship, at the inner end of annular convex rib 22 in the outer end point at one end that sealing inner ring 11 is relatively large in diameter At side position, in this way, sealing 11 diameter of inner ring is lesser when the inner end of annular convex rib 22 and sealing inner ring 11 are formed against limit The position of one end will not be outwardly over the position of sealing 11 outermost end of inner ring, namely is not in flanging problem, it is ensured that positive pressure Sealing reliability, and can effectively limit the deflection for sealing inner ring 11 in a certain range, it is conducive to extend sealing inner ring 11 Service life.

In one embodiment of the utility model, preferably cover board 20 be used for sealed outer ring 12 against surface be flat Face, such as shown in Fig. 3, the part of the surface of cover board 20 is medial plane region 231, which is plane and use In with sealed outer ring 12 against, and/or preferably cover board 20 be used for sealing inner ring 11 against surface be plane, such as Fig. 3 institute Show, the part of the surface of cover board 20 is inner side plane region 241, which is plane and is used for and sealing inner ring 11 against.

In the present solution, setting cover board 20 be used for sealed outer ring 12 against surface be plane, lifting negative pressure can be conducive to Sealing reliability avoids leakage problem；Be arranged cover board 20 for sealing inner ring 11 against surface be plane, can be conducive to promoted Positive seal reliability, avoids leakage problem.

In one embodiment of the utility model, cover board 20 is equipped with groove, more specifically, as shown in figure 3, groove packet Include external groove 23, cover board 20 be used for sealed outer ring 12 against surface be the groove bottom of external groove 23 and/or groove includes interior Groove 24, cover board 20 be used for sealing inner ring 11 against surface be inner groovy 24 groove bottom, wherein pass through setting cover board 20 For with sealed outer ring 12 against surface be external groove 23 groove bottom, it is fixed to cover board 20 and the cooperation of sealed outer ring 12 to have Position effect, conducive to promoted assembling product yields, and/or setting cover board 20 be used for sealing inner ring 11 against surface be The groove bottom of inner groovy 24 can have the function of positioning cover board 20 and the sealing cooperation of inner ring 11, conducive to assembling product is promoted Yields.

In one embodiment of the utility model, cover board 20 be equipped with boss (not shown), cover board 20 be used for Sealed outer ring 12 against surface be boss top surface and/or cover board 20 be used for sealing inner ring 11 against surface be boss Top surface, wherein by setting cover board 20 be used for sealed outer ring 12 against surface be boss top surface, can have to cover board 20 with sealed outer ring 12 cooperation positioning effects, conducive to promoted assembling product yields, and/or setting cover board 20 be used for it is close Seal inner ring 11 against surface be boss top surface, can have the function of to cover board 20 and sealing inner ring 11 cooperation position, be conducive to Promote the yields of assembling product.

In one embodiment of the utility model, as shown in Figures 2 and 3, cover board 20 be used for sealed outer ring 12 against Surface and for sealing inner ring 11 against surface be in sustained height, this is conducive to cover board 20 and sealed outer ring 12 and close The tight abutment simultaneously of inner ring 11 is sealed, is conducive to promote positive/negative-pressure sealing reliability, certainly, this programme is not limited thereto, ability Field technique personnel can also design according to demand cover board 20 for sealed outer ring 12 against surface and be used for and sealing inner ring 11 Against surface between there are differences in height.

In one embodiment of the utility model, cover board 20 be used for sealed outer ring 12 against surface be annular surface, The outer diameter of annular surface is bigger than the outer diameter of sealed outer ring 12, and difference is 0.5mm~10mm, may insure cover board 20 and sealing in this way Sealing reliability between outer ring 12 avoids leakage problem caused by deviation.

In one embodiment of the utility model, it is preferable that cover board 20 be used for sealed outer ring 12 against surface and The difference in height of 22 top surface of annular convex rib is 0.5mm~5mm, so that annular convex rib 22 is had certain height, may insure ring in this way Shape convex ribs 22 are reliable against limit to sealed outer ring 12, prevent sealed outer ring 12 from crossing annular convex rib 22 and in-flanges problem occur, Conversely, 22 height of annular convex rib is without 5mm is exceeded, this can also reduce annular convex rib 22 while ensuring to limit reliable Difficulty of processing.

In one embodiment of the utility model, it is preferable that cover board 20 be used for sealing inner ring 11 against surface and The difference in height of 22 top surface of annular convex rib is 0.5mm~5mm, so that annular convex rib 22 is had certain height, may insure ring in this way 22 pairs of sealing inner rings 11 of shape convex ribs are reliable against limit, prevent sealing inner ring 11 from crossing annular convex rib 22 and flanging problem occur, Conversely, 22 height of annular convex rib is without 5mm is exceeded, this can also reduce annular convex rib 22 while ensuring to limit reliable Difficulty of processing.

In one embodiment of the utility model, as shown in Figure 2, Figure 3 and Figure 4, the upper cover of cooking equipment further includes interior Lid 30, sealing element 10 further include interconnecting piece 13 and mounting portion 14, and interconnecting piece 13 is connect with sealing inner ring 11 and sealed outer ring 12；Peace Dress portion 14 is assemblied on inner cover 30, and mounting portion 14 is equipped with the intercommunicating pore 141 being connected to gas outlet 21.The structure is conducive to seal The positioning synchronous with the realization of sealed outer ring 12 of inner ring 11, reduces assembling difficulty, conducive to the packaging efficiency and yields for promoting product, more Preferably, one end of 12 axial direction of the axial one end of sealing inner ring 11 and sealed outer ring is connect with interconnecting piece 13, seals 11 axis of inner ring To the axial other end and cover board 20 of the other end and sealed outer ring 12 against.

More specifically, as shown in Figure 1, Figure 2 and Figure 3, mounting portion 14 is the position that sealing element 10 is used to connect with inner cover 30, Specifically such as, inner cover 30 is equipped with mounting hole, and mounting portion 14 is connected to mounting hole, and mounting portion 14 is equipped with perforative intercommunicating pore 141, Intercommunicating pore 141 with sealing inner ring 11 encloses the space set out and be connected to be connected to gas outlet 21 in turn, and the upper cover of cooking equipment further includes Have an air extractor 40, air extractor 40 includes suction element 41, tracheae 42, air valve 44 and inlet suction port 431,42 one end of tracheae with Suction element 41 is connected to, and the other end is equipped with the inlet suction port 431, and air valve 44 is located on tracheae 42 for controlling 42 on-off of tracheae, Inlet suction port 431 be mounted on inner cover 30 and its at least partly grafting enters in intercommunicating pore 141, with utilize inlet suction port 431, tracheae 42 are connected to suction element 41 with intercommunicating pore 141, and in the open state, gas outlet 21, sealing inner ring 11 are enclosed and set out air valve 44 Space, intercommunicating pore 141, inlet suction port 431, tracheae 42 and suction element 41 be connected to, at this moment running suction element 41 can realize To culinary art chamber pumping from gas outlet 21, it is highly preferred that the hole wall of intercommunicating pore 141 is equipped with the protrusion being located in intercommunicating pore 141 143, inlet suction port 431 is plugged into intercommunicating pore 141 and is connected to intercommunicating pore 141, and 143 position of protrusion in intercommunicating pore 141 Interference fit, which is formed, with inlet suction port 431 realizes sealing.

As shown in figure 5, the embodiment of the utility model second aspect provides a kind of cooking equipment, comprising: any of the above-described The upper cover of cooking equipment described in technical solution；Cookware 50 limits when the cover board 20 of upper cover covers cookware 50 with cookware 50 jointly Cooking cavity is made, the gas outlet 21 of cover board 20 is connected to cooking cavity.

More specifically, cookware 50 is located in cooker body 60, cooking equipment as shown in figure 4, cooking equipment further includes cooker body 60 When upper cover and the lid of cooker body 60 close, cover board 20 covers cookware 50 and limits cooking cavity jointly with cookware 50.

The utility model cooking equipment provided by the above embodiment, by being provided with described in any of the above-described technical solution The upper cover of cooking equipment, to have all of the above beneficial effect, details are not described herein.

Optionally, cooking equipment is minute-pressure rice cooker, electric pressure cooking saucepan or steam oven etc..

In conclusion the utility model cooking equipment provided by the above embodiment and its upper cover, it is located in sealing on cover board It is equipped with raised position limiting structure at position between circle and sealed outer ring, negative pressure state is in the cooking cavity being connected to gas outlet When, sealed outer ring is mainly acted on by inside atmospheric pressure, can be transported in sealed outer ring along lid surface using raised position limiting structure Move to raised position limiting structure against position when to sealed outer ring carry out against limit, prevent sealed outer ring from continuing to move inward There is in-flanges problem, when being in barotropic state in the cooking cavity being connected to gas outlet, seals inner ring mainly by outside Atmospheric pressure effect, using raised position limiting structure can sealing inner ring along lid surface move to raised position limiting structure against position Sealing inner ring is carried out against limit when setting, prevents sealing inner ring from continuing to be displaced outwardly and flanging problem occur, it is ensured that positive/negative-pressure Sealing reliability.

In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term The terms such as " installation ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, It can be and be detachably connected, or be integrally connected；" connected " can be directly connected, and can also pass through the indirect phase of intermediary Even.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be Concrete meaning.

In the description of the utility model, it is to be understood that the orientation or positional relationship of the instructions such as term "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or unit must have specific direction, be constructed and operated in a specific orientation, it is thus impossible to understand For limitations of the present invention.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples In can be combined in any suitable manner.

The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of upper cover of cooking equipment characterized by comprising

Sealing element, including sealing inner ring and sealed outer ring, the sealing inner ring nested arrangement is in the inside of the sealed outer ring；

Cover board, with the sealing inner ring and the sealed outer ring against the cover board is equipped with gas outlet, corral in the sealing The space set out is connected to the gas outlet, and the cover board is located at the position between the sealing inner ring and the sealed outer ring Equipped with raised position limiting structure.

2. the upper cover of cooking equipment according to claim 1, which is characterized in that

The protrusion position limiting structure includes annular convex rib, and the annular convex rib nested arrangement is in the sealed outer ring and the sealing At position between inner ring.

3. the upper cover of cooking equipment according to claim 2, which is characterized in that

The diameter of the sealing inner ring axial ends is different, wherein the lesser one end of the sealing inner ring diameter is located at institute State the inside of annular convex rib and with the cover board against outer diameter D 5 and the ring at described sealing biggish one end of inner ring diameter The internal diameter D4 of shape convex ribs meets: D4 < D5.

4. the upper cover of cooking equipment according to any one of claim 1 to 3, which is characterized in that

The cover board is equipped with groove or boss, the cover board be used for the sealed outer ring against surface be the groove The top surface and/or the cover board of groove bottom or the boss be used for the sealing inner ring against surface be the groove The top surface of groove bottom or the boss.

5. the upper cover of cooking equipment according to any one of claim 1 to 3, which is characterized in that

The cover board be used for the sealed outer ring against surface be annular surface, the outer diameter of the annular surface than the sealing outside The outer diameter of circle is big, and difference is 0.5mm~10mm.

6. the upper cover of cooking equipment according to claim 2 or 3, which is characterized in that

The cover board be used for the sealed outer ring against surface and the annular convex rib top surface difference in height be 0.5mm~ 5mm and/or the cover board be used for the sealing inner ring against surface and the difference in height of the annular convex rib top surface be 0.5mm~5mm.

7. the upper cover of cooking equipment according to any one of claim 1 to 3, which is characterized in that it further include inner cover, In, the sealing element further include:

Interconnecting piece is connect with the sealing inner ring and the sealed outer ring；

Mounting portion, the mounting portion are assemblied in described and cover, and the mounting portion is equipped with the connection being connected to the gas outlet Hole.

8. the upper cover of cooking equipment according to claim 7, which is characterized in that further include:

Air extractor, the air extractor have inlet suction port, and the inlet suction port is arranged in the intercommunicating pore.

9. the upper cover of cooking equipment according to claim 8, which is characterized in that

The hole wall of the intercommunicating pore is equipped with protrusion, and the inlet suction port is assemblied in the intercommunicating pore and close by the protrusion Seal the gap between the inlet suction port and the hole wall.

10. a kind of cooking equipment characterized by comprising

The upper cover of cooking equipment as claimed in any one of claims 1-9 wherein；

Cookware, limits cooking cavity jointly with the cookware when cover board of the upper cover covers the cookware, the cover board goes out Port is connected to the cooking cavity.