CN210169741U - Sealed reliable vacuum electric cooker - Google Patents

Abstract

The utility model discloses a sealed reliable vacuum rice cooker belongs to the kitchen appliance field, has solved current vacuum rice cooker and has easily leaded to the problem of sealed inefficacy between inner cup and the upper cover because of the inner cup moves down when carrying out the negative pressure culinary art, the utility model discloses sealed reliable vacuum rice cooker, including a kind of deep pot body and a kind of deep pot lid, a kind of deep pot lid includes the inner cup of upper cover and unsteady setting, a kind of deep pot internal inner bag that is equipped with, the inner cup can cover and close the inner cup oral area forms the culinary art chamber, on cover be equipped with be used for with cook the evacuating air exhaust device in chamber, the inner cup is all along being equipped with spacing muscle, vacuum rice cooker is under the negative pressure culinary art state, spacing muscle with the inner bag cooperation is used for the. The compression amount of the sealing ring is not more than the preset value by limiting the downward movement stroke of the inner cover, so that the effective sealing of the sealing ring is maintained in the negative pressure cooking state of the vacuum electric cooker.

Description

Sealed reliable vacuum electric cooker

[ technical field ] A method for producing a semiconductor device

The utility model relates to a kitchen appliance field especially relates to sealed reliable vacuum electric rice cooker.

[ background of the invention ]

The cooker cover of the electric cooker comprises an upper cover and an inner cover, when the cooker cover covers a cooker body, the inner cover is in sealing fit with an inner container in the cooker body, the upper cover is usually provided with parts such as a steam valve and a temperature sensor and used for achieving functions of exhausting, temperature measuring and the like, a sealing ring is required to be arranged at the part for installing the steam valve and the temperature sensor, and the sealing ring is attached to the inner cover to form a sealing channel so as to prevent air leakage. To the electric rice cooker of using vacuum technique, under its negative pressure culinary art state, be the negative pressure environment in the culinary art space, the atmospheric pressure of applying on the inner cup can promote the inner cup and move down, compare the ordinary pressure state, the interval that inner cup and upper cover are corresponding the sealing washer region can increase, and along with the increase of interval, the seal strength between sealing washer and the inner cup weakens gradually, move down the volume when the inner cup reaches the certain degree, ordinary sealing washer is difficult to maintain normal sealed form, thereby produce gas leakage, can't satisfy the sealed requirement when the negative pressure culinary art state.

[ Utility model ] content

The utility model aims to solve the technical problem that overcome prior art not enough and provide sealed reliable vacuum electric rice cooker, through the downward movement stroke of restriction inner cup at the negative pressure culinary art state, guarantee the sealed effect between inner cup and the upper cover.

In order to solve the technical problem, the utility model adopts the following technical scheme:

sealed reliable vacuum electric rice cooker, including a kind of deep pot body and a kind of deep pot lid, a kind of deep pot lid is including upper cover and the inner cup that floats the setting, the internal inner bag that is equipped with of a kind of deep pot, the inner cup can cover to close the inner bag oral area forms the culinary art chamber, on cover be equipped with be used for with cook the air exhaust of chamber evacuation, the inner cup week is along being equipped with spacing muscle, vacuum electric rice cooker cooks under the state at the negative pressure, spacing muscle with the inner bag cooperation is used for the restriction the stroke that moves down of inner cup.

In the above-mentioned sealed reliable vacuum electric rice cooker, the inner cup includes inner cup body, inner cup sealing washer and inner cup mount, the inner cup sealing washer passes through the inner cup mount is installed inner cup body week is followed, set up on the inner cup mount spacing muscle.

In the above-mentioned reliable sealed vacuum electric rice cooker, the inner cup mount is an annular structure that cooperates the inner cup peripheral edge, the spacing muscle is along the inner cup mount circumference is continuous or intermittent setting.

In the above reliably sealed vacuum electric rice cooker, the mouth of the inner container is provided with a flange extending outwards, the inner cover sealing ring is provided with a radial sealing lip which is attached to the flange in a cover closing state, and the bottom end of the limiting rib is higher than the bottom surface of the radial sealing lip in a cover opening state.

In the reliable-sealing vacuum electric cooker, the limiting rib is abutted against the flanging in a cover closing state so as to limit the downward moving stroke of the inner cover.

In the above-mentioned reliably sealed vacuum electric rice cooker, the inner side of the upper cover is provided with a concave cavity for accommodating the inner cover, the concave cavity is internally provided with a spacing column for radially spacing the inner cover, and a gap of 0.1 mm-0.4 mm is formed between the spacing column and the inner cover.

In the above-mentioned reliable sealed vacuum electric rice cooker, the limit posts are arranged in pairs and are not in the same diameter direction of the inner cover.

In the above-mentioned reliable sealed vacuum electric rice cooker, the opposite both sides of cavity are equipped with slot and inner cup hasp respectively, inner cup one side peg graft in the slot, the inner cup opposite side passes through the locking of inner cup hasp, spacing post is close to the locking side of inner cup.

In the reliable-sealing vacuum electric cooker, a gap of 0.1-0.4 mm is formed between the part of the inner cover inserted into the slot and the side wall of the cavity.

In the reliable-sealing vacuum electric cooker, the upper cover is provided with a temperature sensor and a temperature measuring sealing ring, the inner cover is provided with a temperature measuring hole corresponding to the temperature sensor, and the temperature measuring sealing ring is attached to the inner cover around the temperature measuring hole.

The utility model has the advantages that:

the utility model discloses a sealed reliable vacuum rice cooker, including a kind of deep pot body and a kind of deep pot lid, a kind of deep pot is covered including upper cover and the inner cup that floats the setting, a kind of deep pot internal inner bag that is equipped with, the inner cup can cover and close the inner bag oral area forms the culinary art chamber, on cover be equipped with be used for with cook the air exhaust device of chamber evacuation, the inner cup is all along being equipped with spacing muscle, vacuum rice cooker cooks under the state at the negative pressure, spacing muscle with the inner bag cooperation is used for the restriction the stroke that moves down of inner cup.

Under the normal pressure state of the vacuum electric cooker, a sealing ring between an inner cover and an upper cover is compressed, so that the lower end of the sealing ring can be tightly attached to the inner cover to realize sealing, and generally speaking, the larger the compression amount of the sealing ring is, the better the sealing property between the sealing ring and the inner cover is; under the negative pressure culinary art state, the inner cup moves down and makes inner cup and upper cover increase at the interval that corresponds the sealing washer region, and the decrement of sealing washer reduces thereupon, and the leakproofness weakens, in case the inner cup volume of moving down surpasss the decrement of sealing washer under the ordinary pressure state, and sealed between sealing washer and the inner cup will become invalid, therefore, through the stroke that moves down of restriction inner cup, the decrement that makes the sealing washer is no longer than the default, and the sealing washer still can provide sealedly, the utility model discloses in, set up spacing muscle at the inner cup border, prevent the inner cup when spacing muscle offsets with the inner bag to move down, reach the purpose that the restriction inner cup moved down the stroke, make the sealing washer maintain effective seal under the electric rice.

The inner cup includes inner cup body, inner cup sealing washer and inner cup mount, the inner cup sealing washer passes through the inner cup mount is installed inner cup body week is followed, set up on the inner cup mount spacing muscle. The inner cover fixing frame is generally made of plastic materials, and the limiting ribs are arranged on the inner cover fixing frame, so that the process is easier to realize, and the cost is low; the inner cup sealing washer centre gripping is usually between inner cup body edge and inner cup mount, sets up spacing muscle on the inner cup mount and is difficult to interfere the sealing washer.

The inner cup mount is for cooperating the annular structure on inner cup border, spacing muscle is followed inner cup mount circumference is continuous or intermittent setting. The limiting ribs which are circumferentially continuously or discontinuously arranged do not easily cause the center of gravity of the inner cover to shift, so that the inner cover is ensured to float stably, and the sealing ring of the inner cover is uniformly attached to the inner container in the whole circumference, so that the sealing performance between the inner cover and the inner container is favorably improved; when spacing muscle and inner bag offset, inner cup border atress is even, prevents that the inner cup from inclining and increase the risk of leaking gas.

The inner container opening is provided with a flange extending outwards, the inner cover sealing ring is provided with a radial sealing lip which is attached to the flange in a cover closing state, and the bottom end of the limiting rib is higher than the bottom surface of the radial sealing lip in a cover opening state. When the cover is closed, the radial sealing lip contacts the flanging of the inner container first to deform, so that reliable sealing between the radial sealing lip and the flanging of the inner container is ensured.

And under the cover closing state, the limiting rib is abutted against the flanging so as to limit the downward moving stroke of the inner cover. When the inner cup moves down, the limiting rib can not jack the radial sealing lip in the deformation state, and the interference between the limiting rib and the inner cup sealing ring is avoided.

The inner side of the upper cover is provided with a concave cavity for accommodating the inner cover, a limiting column for radially limiting the inner cover is arranged in the concave cavity, and a gap of 0.1-0.4 mm is formed between the limiting column and the inner cover. The arrangement of the limiting column limits the movement of the inner cover in the plane direction, and if the gap between the limiting column and the inner cover is less than 0.1mm, the inner cover is easily interfered by the limiting column when being assembled and disassembled, so that the operation is inconvenient; if the clearance between spacing post and the inner cup is greater than 0.4mm, the activity of inner cup in the cavity is too big, and to vacuum electric rice cooker, the too big inner cup of activity leads to inner cup and upper cover to take place the dislocation easily, can't realize the evacuation, so inject the clearance between spacing post and the inner cup and be 0.1mm ~ 0.4 mm.

The limiting columns are arranged in pairs and are not arranged on the same diameter direction of the inner cover. Set up like this, use a small amount of spacing post just can diversified spacing inner cup, for example the width direction and the length direction of a kind of deep pot lid, save the cost that sets up of spacing post, and spacing effectual.

The inner cup is characterized in that a slot and an inner cup lock catch are respectively arranged on two opposite sides of the cavity, one side of the inner cup is inserted into the slot, the other side of the inner cup is locked by the inner cup lock catch, and the limiting column is close to the locking side of the inner cup. Because the activity of inner cup hasp is great, and spacing post is close to the locking side setting of inner cup, can play limiting displacement to the locking side of inner cup, prevents that the locking side of inner cup from producing great rocking, and the cooperation slot is spacing to the inner cup grafting side, realizes that the inner cup is even spacing in circumference, and the holistic volume of rocking of inner cup reduces greatly.

And a gap of 0.1-0.4 mm is formed between the part of the inner cover inserted into the slot and the side wall of the accommodating cavity. The inner cup has been inserted and has been restricted inner cup grafting side in its plane direction in the slot at the activity, if the inner cup inserts the part in the slot and holds the chamber lateral wall clearance and be less than 0.1mm, the fit clearance undersize of inner cup and slot, inconvenient inner cup dismouting, if the inner cup inserts the part in the slot and holds the chamber lateral wall clearance and be greater than 0.4mm, the activity of inner cup grafting side is too big, lead to inner cup and upper cover to take place the dislocation equally easily, the event is injectd the inner cup and is inserted the part in the slot and is 0.1mm ~ 0.4mm with holding chamber lateral wall clearance.

The inner cover is provided with a temperature sensor and a temperature measuring sealing ring, the inner cover is provided with a temperature measuring hole corresponding to the temperature sensor, and the temperature measuring sealing ring is attached to the inner cover around the temperature measuring hole. Because the limit ribs are matched with the liner to limit the downward movement stroke of the inner cover, the temperature measuring sealing ring can maintain effective sealing in the negative pressure cooking state of the vacuum electric cooker, air leakage between the temperature measuring sealing ring and the inner cover is prevented, the temperature sensor can measure the temperature in a relatively small space limited by the temperature measuring sealing ring, and the temperature measurement is quicker and more accurate.

These features and advantages of the present invention will be disclosed in more detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The invention will be further explained with reference to the drawings:

FIG. 1 is a schematic cross-sectional view of a vacuum rice cooker according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is an exploded view of an inner lid according to a first embodiment of the present invention;

FIG. 4 is a schematic sectional view of a vacuum rice cooker according to a second embodiment of the present invention;

fig. 5 is a schematic structural view of the inner side of a pot cover according to the second embodiment of the present invention;

fig. 6 is an exploded view of the inner lid according to the second embodiment of the present invention.

Reference numerals:

100 a pot body;

200 pot covers, 210 upper covers, 211 cavities, 212 inner cover lock catches, 213 slots, 214 limit columns, 220 inner covers, 221 inner cover bodies, 222 inner cover fixing frames, 223 inner cover sealing rings, 224 limit ribs, 225 axial sealing lips, 226 radial sealing lips and 227 inserting parts;

300 of inner container and 310 of flanging;

400 temperature sensor, 410 temperature measurement seal ring;

500 steam valve, 510 push rod;

600 solenoid valve.

[ detailed description ] embodiments

The utility model provides a reliable vacuum rice cooker, cover including a kind of deep pot body and a kind of deep pot, a kind of deep pot covers the inner cup that sets up including upper cover and floating, a kind of deep pot internal inner bag that is equipped with, the inner cup can cover and close the inner bag oral area forms the culinary art chamber, on cover be equipped with be used for with cook the evacuating air exhaust device in chamber, the inner cup is all along being equipped with spacing muscle, vacuum rice cooker is under negative pressure culinary art state, spacing muscle with the inner bag cooperation is used for the restriction the stroke that moves down of inner cup through the stroke that moves down of restriction inner cup, makes the compressive capacity of the sealing washer between inner cup and the upper cover no longer than the default, makes the sealing washer maintain effectively sealed under vacuum rice cooker negative pressure culinary art state.

The technical solutions of the embodiments of the present invention are explained and explained below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 and 2, the embodiment of the present invention provides a vacuum rice cooker, including a kind of deep pot body 100 and a kind of deep pot lid 200, a kind of deep pot lid 200 includes upper cover 210 and the floating inner cup 220 that sets up, be equipped with inner bag 300 in the body 100 of a kind of deep pot, a kind of deep pot lid 200 is closed when a kind of deep pot body 100, inner cup 220 lid closes and forms the culinary art chamber on inner bag 300, be equipped with the air exhaust device that is used for cooking the chamber evacuation on upper cover 210, air exhaust device is preferred to the vacuum pump, the vacuum pump during operation is outwards bled, so that cook the intracavity and form the negative pressure (external atmospheric pressure is greater than culinary art intracavity atmospheric pressure), can realize the negative pressure culinary art, of course, the vacuum rice cooker of this embodiment also has ordinary pressure culinary art state (external atmospheric.

The upper cover 210 of the embodiment is provided with the temperature sensor 400 and the temperature measuring seal ring 410, the inner cover 220 is provided with the temperature measuring hole corresponding to the temperature sensor 400, the temperature sensor 400 can directly detect the temperature of the steam discharged from the temperature measuring hole, the temperature measuring accuracy is improved, the temperature sensor 400 is positioned in the temperature measuring seal ring 410, the inner cover 220 presses the lower end of the temperature measuring seal ring 410 to compress the temperature measuring seal ring, and the lower end of the temperature measuring seal ring 410 is tightly attached to the inner cover 220 around the temperature measuring hole to realize sealing. If the inner cap 220 moves down, the distance between the inner cap 220 and the upper cap 210 in the region corresponding to the temperature measuring seal ring 410 increases, the compression amount of the temperature measuring seal ring 410 decreases, the sealing performance is weakened, and once the downward movement amount of the inner cap 220 exceeds the compression amount of the temperature measuring seal ring 410 in the normal pressure state, the seal between the seal ring and the inner cap 220 fails. Therefore, in the embodiment, the limit rib 224 is arranged on the periphery of the inner cover 220, when the vacuum electric cooker is in a negative pressure cooking state, the limit rib 224 is matched with the inner container 300 and used for limiting the downward movement stroke of the inner cover 220, and the compression amount of the temperature measurement sealing ring 410 is not more than the preset value by limiting the downward movement stroke of the inner cover 220, namely when the limit rib 224 is abutted against the inner container 300, the temperature measurement sealing ring 410 still maintains a certain compression amount, so that the temperature measurement sealing ring 410 maintains effective sealing in the negative pressure cooking state of the vacuum electric cooker.

Referring to fig. 3, the inner lid 220 of the present embodiment includes an inner lid body 221, an inner lid sealing ring 223, and an inner lid fixing frame 222, wherein the inner lid sealing ring 223 is mounted on the periphery of the inner lid body 221 through the inner lid fixing frame 222, and a limiting rib 224 is disposed on the inner lid fixing frame 222. The inner cover body 221 is generally made of metal, the inner cover fixing frame 222 is generally made of plastic, and the limit ribs 224 arranged on the inner cover fixing frame 222 are easier to realize in process and have low cost; the inner lid sealing ring 223 is clamped between the edge of the inner lid body 221 and the inner lid fixing frame 222, and the limit rib 224 arranged on the inner lid fixing frame 222 is not easy to interfere with the sealing ring. Preferably: the inner cover fixing frame 222 is an annular structure matched with the peripheral edge of the inner cover 220, the limiting ribs 224 are positioned on the lower surface of the inner cover fixing frame 222 and are continuously arranged along the peripheral direction of the inner cover fixing frame 222 to form annular convex ribs, so that the center of gravity of the inner cover 220 is not easy to shift, the inner cover 220 is ensured to float stably, the inner cover sealing ring 223 is uniformly attached to the inner container 300 in the whole periphery, and the sealing performance between the inner cover 220 and the inner container 300 is favorably improved; when the limiting rib 224 is abutted to the inner container 300, the peripheral edge of the inner cover 220 is uniformly stressed, and the inner cover 220 is prevented from inclining to increase the risk of air leakage. Of course, in other embodiments of the present invention, the limiting rib 224 is intermittently disposed along the circumferential direction of the inner lid fixing frame 222, and the technical effect of the present embodiment can also be achieved.

Referring to fig. 2, in this embodiment, the inner lid sealing ring 223 has a radial sealing lip 226 and an axial sealing lip 225, in the closed state, the radial sealing lip 226 abuts against the upper surface of the flange 310 of the inner container 300, and the axial sealing lip 225 abuts against the inner side surface of the inner container 300 near the opening of the inner container 300, so that the inner lid sealing ring 223 reliably seals the opening of the inner container 300, in the open state, the bottom end of the limiting rib 224 is higher than the bottom surface of the radial sealing lip 226, and in the closed state, the radial sealing lip 226 contacts with the flange 310 of the inner container first to deform, thereby ensuring that the radial sealing lip 226 and the flange 310 of the inner container are reliably sealed. Preferably: under the state of closing the lid, the lower end of the limiting rib 224 can abut against the flange 310, so that the downward movement stroke of the inner lid 220 is limited, namely, the projection of the limiting rib 224 and the radial sealing lip 226 on the flange 310 is not overlapped, in the negative pressure cooking process, when the inner lid 220 moves downwards, the limiting rib 224 cannot jack the radial sealing lip 226 in the deformation state, and the interference between the limiting rib 224 and the inner lid sealing ring 223 is avoided.

Except the temperature measurement sealing ring of this embodiment, if the inner cover still is equipped with the venthole that corresponds with the vacuum pump end of bleeding, still need cover on and set up the sealing ring of bleeding for seal the inner cup around the venthole, adopt the scheme of this embodiment, guarantee to bleed the sealing ring and maintain effective seal under the electric rice cooker negative pressure culinary art state of vacuum. Still need set up the steam valve and be used for the exhaust on the electric rice cooker usually, if the steam valve is installed on covering, still need install the steam valve sealing washer on steam valve or upper cover, adopt the scheme of this embodiment, guarantee that the steam valve sealing washer maintains effective sealedly under the electric rice cooker negative pressure culinary art state of vacuum.

Example two

Referring to fig. 4-6, the vacuum rice cooker of the present embodiment is provided with a steam valve 500 on an inner lid 220, the steam valve 500 and the inner lid 220 are assembled and disassembled as a single component, the steam valve 500 cannot be forgotten to be cleaned while the inner lid 220 is cleaned, because the vacuum rice cooker needs to be sealed in a cooking cavity by vacuum pumping and negative pressure cooking, a push rod 510 needs to be provided on the steam valve 500, the push rod 510 can control the on-off of the steam valve 500, an electromagnetic valve 600 for driving the push rod 510 to act is provided on an upper lid 210, when the negative pressure cooking is performed, the electromagnetic valve 600 drives the push rod 510 to move towards the inside of the steam valve 500 to block a steam passage in the steam valve 500, and after the electromagnetic valve 600 is powered off, the push. If the amount of movement of the inner lid 220 relative to the upper lid 210 is too great, the push rod 510 of the steam valve 500 may be deviated from the driving range of the solenoid valve 600, and vacuum pumping and negative pressure cooking may not be reliably achieved.

In view of the above problems, the inner side of the upper cover 210 of the present embodiment has a cavity 211 for accommodating the inner cover 220, the cavity 211 is internally provided with a limit post 214 for radially limiting the inner cover 220, a gap of 0.1mm to 0.4mm is formed between the limit post 214 and the inner cover 220, the arrangement of the limit post 214 limits the amount of movement of the inner cover 220 in the plane direction thereof, if the gap between the limit post 214 and the inner cover 220 is smaller than 0.1mm, the inner cover 220 is easily interfered by the limit post 214 when being disassembled and assembled, and is not convenient to operate; if the gap between the position-limiting column 214 and the inner cover 220 is larger than 0.4mm, the movement of the inner cover 220 in the cavity 211 is too large, and for the vacuum electric cooker, the inner cover 220 with too large movement easily causes the push rod 510 on the steam valve 500 to deviate from the driving range of the electromagnetic valve 600, and thus the vacuum pumping and negative pressure cooking cannot be realized, so the gap between the position-limiting column 214 and the inner cover 220 is limited to be 0.1 mm-0.4 mm, and is preferably 0.2mm, and in other embodiments, the gap values such as 0.1mm, 0.15mm, 0.25mm, 0.3mm, and 0.4mm can be selected according to the actual situation.

In order to realize the detachable installation of the inner lid 220, in the present embodiment, the insertion slot 213 and the inner lid lock catch 212 are respectively disposed on two opposite sides of the cavity 211, the insertion portion 227 matching with the insertion slot 213 extends from one side of the inner lid fixing frame 222, the insertion portion 227 is inserted into the insertion slot 213, and the other side of the inner lid 220 is locked by the inner lid lock catch 212, because the movement amount of the inner lid lock catch 212 is large, the locking side of the inner lid 220 is easy to shake, for this reason, the distribution position of the limiting posts 214 is optimized in the present embodiment, as can be seen from fig. 4, two limiting posts 214 are symmetrically disposed at the position of the cavity 211 close to the locking side of the inner lid 220, and the two limiting posts 214 are not in the same diameter direction of the inner lid 220, on one hand, the inner lid 220 can be limited in multiple directions by using a small number of the limiting posts 214, such as the width direction and the length direction, the locking side of the inner cover 220 is prevented from greatly shaking, the inner cover inserting part 227 is limited by the matching slot 213, the circumferential uniformity of the inner cover 220 is realized, and the overall shaking amount of the inner cover 220 is greatly reduced. In other embodiments not shown in the present invention, according to actual conditions, the limiting columns may be provided in pairs in two groups, three groups, or the like, and may be distributed uniformly along the circumferential direction of the cavity.

In order to better limit the inner cover 220, after the insertion part 227 is inserted into the insertion slot 213, a gap of 0.1mm to 0.4mm is formed between the insertion part 227 and the side wall of the receiving cavity. If the gap between the insertion part 227 and the side wall of the cavity is smaller than 0.1mm, the fit gap between the insertion part 227 and the slot 213 is too small, which is inconvenient for the inner lid 220 to be disassembled and assembled, and if the gap between the insertion part 227 and the side wall of the cavity is larger than 0.4mm, the movement of the insertion side of the inner lid 220 is too large, which also easily causes the push rod 510 on the steam valve 500 to deviate from the driving range of the electromagnetic valve 600, and the vacuum pumping and negative pressure cooking cannot be realized, so that the gap between the insertion part 227 and the side wall of the cavity is limited to be 0.1 mm-0.4 mm, and most preferably 0.2mm, and in other embodiments, the gap values such as 0.1mm, 0.15mm, 0.25mm, 0.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. Sealed reliable vacuum electric rice cooker, including a kind of deep pot body and a kind of deep pot lid, a kind of deep pot lid is including upper cover and the inner cup that floats the setting, the internal inner bag that is equipped with of a kind of deep pot, the inner cup can cover to close the inner bag oral area forms cooks the chamber, on cover be equipped with be used for with cook the evacuating air exhaust device in chamber, its characterized in that, inner cup week edge is equipped with spacing muscle, vacuum electric rice cooker is under negative pressure culinary art state, spacing muscle with the cooperation of inner bag is used for the restriction the stroke that moves down of inner cup.

2. The vacuum rice cooker with reliable sealing as claimed in claim 1, wherein the inner lid comprises an inner lid body, an inner lid sealing ring and an inner lid fixing frame, the inner lid sealing ring is installed on the periphery of the inner lid body through the inner lid fixing frame, and the inner lid fixing frame is provided with the limiting rib.

3. The vacuum rice cooker with reliable sealing as claimed in claim 2, wherein said inner lid fixing frame is a ring structure matching with the peripheral edge of said inner lid, and said limiting ribs are arranged continuously or intermittently along the peripheral direction of said inner lid fixing frame.

4. The vacuum electric cooker with reliable sealing as claimed in claim 2, wherein the mouth of the inner container is provided with a flange extending outward, the inner cover sealing ring is provided with a radial sealing lip which clings to the flange in a cover closing state, and the bottom end of the limiting rib is higher than the bottom surface of the radial sealing lip in a cover opening state.

5. The vacuum rice cooker with reliable sealing as claimed in claim 4, wherein the limiting rib is abutted against the flange to limit the downward moving stroke of the inner cover in the cover closing state.

6. The vacuum rice cooker with reliable sealing as claimed in one of claims 1 to 5, wherein the inner side of the upper cover is provided with a cavity for accommodating the inner cover, a limiting column for radially limiting the inner cover is arranged in the cavity, and a gap of 0.1mm to 0.4mm is formed between the limiting column and the inner cover.

7. The vacuum rice cooker with reliable sealing as claimed in claim 6, wherein the limiting posts are arranged in pairs and are not in the same diameter direction of the inner cover.

8. The vacuum rice cooker with reliable sealing as claimed in claim 7, wherein the cavity has slots and inner cover latches on opposite sides, one side of the inner cover is inserted into the slots, the other side of the inner cover is locked by the inner cover latches, and the limit posts are close to the locking side of the inner cover.

9. The vacuum rice cooker with reliable sealing as claimed in claim 8, wherein a gap of 0.1mm to 0.4mm is provided between the portion of the inner cover inserted into the slot and the side wall of the cavity.

10. The vacuum rice cooker with reliable sealing as claimed in any one of claims 1 to 5, wherein the upper cover is provided with a temperature sensor and a temperature measuring sealing ring, the inner cover is provided with a temperature measuring hole corresponding to the temperature sensor, and the temperature measuring sealing ring is attached to the inner cover around the temperature measuring hole.

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