CN212165584U

CN212165584U - Cooking utensil

Info

Publication number: CN212165584U
Application number: CN202020141111.5U
Authority: CN
Inventors: 吕华; 李泽涌
Original assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Current assignee: Zhejiang Supor Electrical Appliances Manufacturing Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2020-12-18
Anticipated expiration: 2030-01-21

Abstract

The utility model provides a cooking utensil, this cooking utensil include a kind of deep pot body, lid switching mechanism, steam generator and link gear. The cover body opening and closing mechanism can enable the cover body to be in a closed position and an open position. Steam generating device includes steam generation chamber, steam apron, and steam generation chamber is used for holding the water that treats to be heated in order to generate steam, and steam generation chamber can communicate with the culinary art space to with the leading-in culinary art space of steam. The steam cover plate is pivotally connected to the cover body and can be opened and closed relative to the steam generating cavity to open or close the steam generating cavity. The linkage mechanism is configured to act on the lid opening and closing mechanism in response to opening of the steam cover to lock the lid in the closed position. According to the utility model discloses a cooking utensil can lock the lid in the closed position when the steam apron is opened to can avoid the liquid outflow in the steam generation chamber.

Description

Cooking utensil

Technical Field

The present invention relates generally to the field of electrical heating appliances, and more particularly to a cooking appliance.

Background

In order to achieve the purpose of steam recovery or steam moisturizing, a steam cup is generally disposed in a pot body for generating steam. In order to effectively reduce the volume of the cooking appliance, the applicant has designed a new type of cooking appliance in which the steam cup is provided in the lid body. Because the steam cup sets up in the lid, and the lid needs often to be opened and the lid closes, when the lid was opened, probably caused the maloperation steam bowl cover and lead to the steam bowl cover to open to cause the water in the steam cup to empty and flow, bring the risk.

It is therefore desirable to provide a cooking appliance that at least partially addresses the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

To at least partially solve the above technical problem, according to an aspect of the present invention, there is provided a cooking appliance, including:

a pot body;

the cover body is pivotally connected to the pot body and can be arranged in an opening and closing mode relative to the pot body, and when the cover body covers the pot body, a cooking space is formed between the cover body and the pot body;

a cover opening and closing mechanism capable of bringing the cover into a closed position and an open position;

a steam generating device disposed on the cover, the steam generating device including:

a steam generating chamber for containing water to be heated to generate steam, the steam generating chamber being communicable with the cooking space to introduce the steam into the cooking space; and

a steam cover plate pivotably connected to the cover body and openable and closable with respect to the steam generating chamber to open or close the steam generating chamber;

a linkage mechanism configured to act on the lid opening and closing mechanism in response to opening of the steam cover to lock the lid in the closed position.

According to the utility model discloses a cooking utensil is through setting up link gear to make link gear respond to opening of steam apron and lock the lid in closed position, this scheme can guarantee to lock the lid in closed position when steam apron is opened, also makes the lid promptly can't open, thereby can avoid the liquid outflow in the steam generation chamber. The scheme is ingenious in design and convenient to realize.

Preferably, the linkage mechanism is configured to act on the lid opening and closing mechanism in response to the closing of the steam cover to release the locking of the lid. Therefore, the cover body can be opened while the steam cover plate is in a closed state, and safety is improved.

Preferably, the link mechanism is provided between the steam cover and the lid opening and closing mechanism, and the link mechanism includes a locking device movable between a locking position and an unlocking position. Therefore, the cover body can be locked and unlocked through the movement of the locking device, so that the structure is simple and the operation is convenient.

Preferably, the linkage mechanism further comprises an actuating means, one end of which is contactable with the steam cover plate and the other end of which is operable on the locking means. Thereby, the force of the steam cover plate can be transferred to the locking device by the actuating device, and the linkage of the linkage mechanism is realized by the interaction between the actuating device and the locking device.

Preferably, the actuating means is movable between a first position and a second position. Thereby, the movement of the locking means may be achieved by a movement of the actuating means.

Preferably, the steam cover plate is configured to act on the one end of the actuating means when closed to move the actuating means from the first position to the second position, the locking means being configured to move from the locked position to the unlocked position when the actuating means moves from the first position to the second position. Thereby, the movement of the locking means may be achieved by a movement of the actuating means. This solution makes it possible to enlarge the stroke of the locking device.

Preferably, the linkage further comprises a biasing member configured to apply a biasing force to the actuating means when the steam cover panel is open such that the actuating means moves from the second position to the first position, the locking means being configured to move from the unlocked position to the locked position when the actuating means moves from the second position to the first position. Thus, the cover body can be always locked at the closed position by always biasing the locking device at the locking position in the open state of the steam cover plate, thereby preventing the risk of misoperation.

Preferably, the one end of the actuator means includes a ramp, the steam cover plate being configured to be able to push the ramp downwardly when closed to move the actuator means from the first position to the second position. Thereby, the actuating means can be driven into movement by the substantially downward force of the steam cover plate.

Preferably, the linkage further comprises a transmission means disposed between the actuating means and the locking means, the transmission means being configured to translate movement of the actuating means from the first position to the second position into movement of the locking means from the locked position to the unlocked position. The solution makes it possible to amplify the stroke of the locking device by means of a transmission.

Preferably, the transmission means comprises a first transmission means connected to the actuating means and a second transmission means connected to the first transmission means, the second transmission means being engaged with the locking means. The solution makes it possible to amplify the stroke of the locking device by means of a transmission.

Preferably, the actuating means comprises a slider. Thereby, the structure can be simplified.

Preferably, the first transmission device includes a transmission arm and a support shaft supporting the transmission arm, the support shaft being located outside the slider, the transmission arm being pivotable about the support shaft, the transmission arm having a first end and a second end opposite to the first end, the first end being connected to the slider, the second end being connected to the second transmission device. The scheme can amplify the motion stroke of the second end.

Preferably, the second transmission means comprises a first rack and a pinion engaged with the first rack, the first rack being connected to the second end, and the locking means comprises a second rack engaged with the pinion. This solution enables to amplify the movement stroke of the locking device.

Preferably, the minimum distance between the first end and the support shaft is less than the minimum distance between the second end and the support shaft. The scheme can amplify the motion stroke of the second end.

Preferably, the minimum distance between the first end and the support shaft is greater than 3 mm. The scheme can amplify the motion stroke of the second end.

Preferably, the minimum distance between the first end and the support shaft is greater than the movement stroke of the actuating device from the first position to the second position. The scheme can amplify the motion stroke of the second end.

Preferably, the cooking appliance further comprises a lid opening button provided on a side wall of the lid body, the lid opening button being configured to act on the lid body opening and closing mechanism when operated so that the lid body can be opened with respect to the pot body. Therefore, the cover opening button is arranged, so that the user operation is facilitated, and the cover opening action is conveniently completed.

Preferably, the lid opening and closing mechanism includes a first fastener disposed on the lid and a second fastener disposed on the pot, the first fastener being capable of cooperating with the second fastener to place the lid in the closed position, wherein the lid opening button is capable of acting on the first fastener when operated to move the first fastener out of cooperation with the second fastener. Thus, the lid body can be separated from the pot body by operating the lid opening button, i.e., the lid body can be opened with respect to the pot body. In addition, the first buckling piece and the second buckling piece can be matched simply, so that the cooking utensil is compact in structure.

Preferably, the locking device further comprises a blocking tab disposed below the second rack, the blocking tab configured to abut against a back side of the first fastener when the locking device is in the locked position to limit movement of the first fastener such that the first fastener cannot be disengaged from the second fastener and is spaced away from the back side of the first fastener when the locking device is in the unlocked position. The scheme can conveniently realize locking and unlocking.

The utility model also provides a cooking utensil, include:

a pot body;

a steam generating chamber for containing water to be heated to generate steam, the steam generating chamber being communicable with the cooking space to introduce the steam into the cooking space;

the steam cover plate opening and closing mechanism can enable the steam cover plate to be in a covering position and an opening position;

a linkage mechanism disposed between the lid opening and closing mechanism and the steam cover opening and closing mechanism, and configured to act on the steam cover opening and closing mechanism in response to an action of the lid opening and closing mechanism so that the steam cover is locked in the closed position when the lid is opened.

Preferably, the steam cover plate opening and closing mechanism comprises a first buckle piece arranged on the steam cover plate and a second buckle piece arranged on the cover body, the first buckle piece can be matched with the second buckle piece to enable the steam cover plate to be located at the cover closing position, and the linkage mechanism can act on the first buckle piece and/or the second buckle piece to lock the steam cover plate at the cover closing position.

According to the utility model discloses a cooking utensil is through setting up link gear to make the link gear structure for closing the position with the steam apron locking at the lid when the lid is in the open position, this scheme can guarantee that the steam apron is in closed position when the lid is opened, thereby can avoid the liquid outflow in the steam generation chamber. The scheme is ingenious in design and convenient to realize.

Drawings

In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings.

Fig. 1 is a perspective view of a cooking appliance according to a preferred embodiment of the present invention, wherein a steam cover plate is in a covering position;

FIG. 2 is another perspective view of the cooking appliance shown in FIG. 1 with the steam cover in an open position;

FIG. 3 is another perspective view of the cooking appliance of FIG. 1 showing structure associated with the linkage for ease of viewing;

FIG. 4 is another perspective view of the cooking appliance of FIG. 2 showing structure associated with the linkage for ease of viewing;

fig. 5 is a perspective view of the cover of the cooking appliance shown in fig. 1 when viewed from above, wherein the structure associated with the linkage is shown for ease of viewing;

fig. 6 is a perspective view of the cover of the cooking appliance shown in fig. 1 when viewed from below, in which the structure related to the link mechanism is shown for the convenience of viewing.

Detailed Description

In the following discussion, details are given to provide a more thorough understanding of the present invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details. In certain instances, some features that are known in the art have not been described in detail in order to avoid obscuring the present invention. It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

A cooking appliance according to a preferred embodiment of the present invention will be described below with reference to fig. 1 to 6. It can be understood, according to the utility model discloses a cooking utensil can be for electric rice cooker, electric pressure cooker or other cooking utensil, and according to the utility model discloses a cooking utensil except having the function of cooking rice, can also have various functions such as cooking congee.

As shown in fig. 1, the cooking appliance 200 includes a cover 110 and a pot body 210. The pot body 210 is substantially in the shape of a rounded rectangular parallelepiped and has a cylindrical-shaped inner pot cooking cavity into or from which the inner pot can be freely put or taken out to facilitate the cleaning of the inner pot. The inner pot is generally made of a metal material and has a circular opening on an upper surface for containing a material to be heated, such as rice, soup, etc. The pot body 210 may include therein a heating means for heating the inner pot.

The cover 110 according to the present invention will be described in detail below.

As shown in fig. 1, the cover body 110 has a substantially rounded rectangular parallelepiped shape, and substantially corresponds to the shape of the pot body 210. The cover 110 may be disposed at an upper side of the pot body 210 for covering the pot body 210 in a covered state. The cover 110 can be in a closed position and an open position, respectively, with respect to the pot body 210. Preferably, the cover 110 is pivotally switchable between an open position and a closed position. In one embodiment, the cover 110 may be connected to the pot body 210 by a pivot means.

Further, the cover body 110 includes a face cover 112 and a detachable cover 113 (see fig. 6), and the detachable cover 113 is located substantially below the face cover 112 and detachably connected to the face cover 112. The detachable cover 113 is substantially circular and is used for covering the upper surface opening of the inner pot when the cover body 110 is covered to the pot body 210, so as to form a cooking space.

As shown in fig. 1 and 2, the cover body 110 further includes a steam generating device 120 and a steam channel (not shown) provided in the cover body 110. The steam generating device 120 includes a steam generating chamber 121 and a steam cover 122, and the steam generating chamber 121 is capable of storing water for generating steam. The steam cover plate 122 may be in a closed position and an open position, respectively, with respect to the steam generating chamber 121. Preferably, the steam cover 122 is pivotally switchable between a closed position and an open position. Preferably, the steam cover plate 122 is attached to the cover 110, and the upper surface of the steam cover plate 122 forms a portion of the upper surface of the face cover 112. This preferred embodiment can make the cover 110 more compact, and at the same time, can facilitate the user to open the steam cover 122 for water filling or cleaning. Preferably, a seal 129 is also provided on the steam cover plate 122 to seal the steam generating chamber 121 when the steam cover plate 122 is in the closed position.

As shown in fig. 2 and 4, the steam generating device 120 preferably further includes a steam cover opening and closing mechanism capable of placing the steam cover 122 in a closed position and an open position. For example, the steam cover plate opening and closing mechanism may include a first latch 127 and a second latch 128 respectively disposed on the steam cover plate 122 and the cover body 110, and the first latch 127 and the second latch 128 may cooperate with each other to enable the steam cover plate 122 to be in the covering position.

The steam generating means 120 further includes heating means disposed around the steam generating chamber 121 for heating water contained in the steam generating chamber 121 as necessary (e.g., during cooking or during warming) to generate steam. In one embodiment, the heating device may include a bottom heating plate and a side heating plate extending upward from the bottom heating plate, and the electric heating tube may be disposed in the bottom heating plate and the side heating plate. In other embodiments, the heating device may also be an electromagnetic heating device.

The steam generating device 120 and the cooking space may communicate through a steam passage. The steam channel includes a steam inlet, which may be provided on the steam cover plate 122, and a steam outlet, which is typically provided on the removable cover 113. The steam generated in the steam generating chamber 121 enters the steam passage through the steam inlet and is then delivered into the inner pot through the steam passage and the steam outlet to prevent the rice in the inner pot from being dried, thereby affecting the taste.

The cooking utensil further comprises a cover body opening and closing mechanism, the cover body opening and closing mechanism comprises a first buckling piece 123 arranged on the cover body and a second buckling piece 125 arranged on the cooker body, and when the cover body is covered on the cooker body, the first buckling piece 123 can be matched with the second buckling piece 125 to enable the cover body to be in a closed position. The cooking appliance further includes a cover opening button 124, the cover opening button 124 is disposed on a sidewall of the lid body 110, the cover opening button 124 can be pushed by a user, and it can act on the first fastening member 123 when pushed, so that the first fastening member 123 moves to be disengaged from the second fastening member 125, so that the lid body 110 can be opened with respect to the pot body 210.

As an example, the first fastener 123 can pivot about a pivot axis (not shown) and disengage from the second fastener 125 when pivoted at an angle. Accordingly, the lid release button 124 may be provided with a portion capable of pressing against the first fastening member 123, so that when operated, the portion presses against the first fastening member 123, thereby causing the first fastening member 123 to pivotally move to disengage from the second fastening member.

As shown in fig. 3 to 6, the cooking appliance 200 further includes a linkage mechanism 300, and the linkage mechanism 300 is disposed in the cover 110 and is capable of acting on the cover opening and closing mechanism in response to the opening of the steam cover 122 to lock the cover 110 in the closed position, so as to prevent the water in the steam generating chamber from flowing out due to the accidental opening of the cover 110. The link mechanism 300 is also configured to act on the lid opening and closing mechanism in response to the closing of the steam cover 122 to release the locking of the lid 110 so that the lid 110 can be normally opened when the steam cover 122 is closed.

As shown in FIG. 5, the linkage 300 is disposed between the steam cover 122 and the first fastener 123. In particular, the linkage 300 comprises a locking device 310 and an actuating device 320 capable of acting on the locking device 310. The actuator 320 is movable between a first position and a second position, and the locking device 310 is movable between a locked position (shown in FIG. 4) and an unlocked position (shown in FIG. 3). Wherein the locked position corresponds to the first position and the unlocked position corresponds to the second position, i.e. the locking device 310 is movable from the locked position to the unlocked position when the actuation device 320 is moved from the first position to the second position.

The actuating device 320 preferably includes a slider 322, and one end of the slider 322 has a slope 321 (as shown in fig. 4), the slope 321 being in contact with the steam cover 122, specifically, when the steam cover 122 is covered, the steam cover 122 can push the slope 321 downwards, and the slope 321 can move the slider 322 from the first position to the second position under the pushing action.

The linkage 300 also includes a biasing member, which may be configured as a spring 330. One end of the spring 330 is connected to the slider 322, and the other end is fixedly connected to the cover 110, so that the spring 330 is compressed when the slider 322 moves from the first position to the second position, so that the spring 330 is in a deformed state. The slider 322 may return to the first position from the second position under the restoring force of the spring 330 when the steam cover 122 is opened, and the locking device 310 is configured to be movable from the unlocked position to the locked position when the slider 322 is moved from the second position to the first position.

As shown in fig. 5, the linkage 300 further includes a transmission 340, the transmission 340 being disposed between the actuating device 320 and the locking device 310. The actuator 340 is capable of translating movement of the actuator 320 from the first position to the second position into movement of the locking device 310 from the locked position to the unlocked position.

Further, the transmission 340 includes a first transmission connected to the actuating device 320 and a second transmission connected to the first transmission, the second transmission being engaged with the locking device 310.

Specifically, the first transmission includes a transmission arm 311 and a support shaft 312 that supports the transmission arm 311. The supporting shaft 312 is located outside the slider 322 and is fixedly disposed in the cover 110, the transmission arm 311 is rotatably connected to the supporting shaft 312, the transmission arm 311 has a first end and a second end opposite to the first end, the first end is connected to the slider 322 and can move together with the slider 322, and the second end is connected to the second transmission device. When the first end moves along with the sliding block 322, the second end can drive the second transmission device to move in the opposite direction.

With further reference to fig. 5 and 6, the second transmission means comprises a first rack 343 and a gear 344 engaged with the first rack 343, the first rack 343 being connected to the second end of the transmission arm 311, and the locking means 310 comprises a second rack 345 engaged with the gear 344. When the first end moves along with the slider 322, the second end can drive the first rack 343 to move, so that the first rack 343 drives the gear 344 to rotate, and the second rack 345 moves along with the rotation of the gear 344.

As shown in FIGS. 5 and 6, the locking device 310 includes a blocking tab 346 disposed below the second rack 345, the blocking tab 346 configured to abut against the back side of the first fastener 123 when the locking device 310 is in the locked position to limit movement of the first fastener 123 such that the first fastener 123 cannot be disengaged from the second fastener 125, and to be spaced away from the back side of the first fastener 123 when the locking device 310 is in the unlocked position such that the first fastener 123 can be disengaged from the second fastener 125.

In order to achieve enlargement of the stroke of the second end of the transmission arm 311, it is preferable that the minimum distance L1 between the first end and the support shaft 312 is smaller than the minimum distance L2 between the second end and the support shaft 312. It should be noted that, the first end mentioned herein refers to a connection point of the transmission arm 311 and the slider 322, and the second end refers to a connection point of the transmission arm 311 and the first rack 343. Further preferably, the ratio of the minimum distance L1 between the first end and the support shaft 312 to the minimum distance L2 between the second end and the support shaft 312 is 1: 3. preferably, the minimum distance L1 between the first end and the support shaft 312 is greater than 3 mm.

Preferably, the minimum distance L1 between the first end and the supporting shaft 312 is greater than the moving stroke of the actuating device 320 from the first position to the second position, wherein the moving stroke of the actuating device 320 from the first position to the second position can be 3-6 mm.

In operation, when the steam cover plate 122 is closed, as shown in fig. 3, the steam cover plate 122 pushes the inclined surface 321 downward, and the inclined surface 321 moves the slider 322 from the first position to the second position under the pushing action. Because the first end of the transmission arm 311 is connected to the slider 322, the first end of the transmission arm 311 moves to the second position along with the slider 322, and meanwhile, the second end of the transmission arm 311 moves in the direction opposite to the first end, so as to drive the first rack 343 to move, the first rack 343 drives the gear 344 to rotate, and the gear 344 drives the second rack 345 to move away from the first fastener 123, so that the cover opening and closing mechanism of the cover can be normally operated by the cover opening and closing button 124, and the cover 110 can be opened relative to the cooker body 210.

When the steam cover 122 is opened, as shown in fig. 4, the slider 322 returns from the second position to the first position under the action of the spring 330. Because the first end of the transmission arm 311 is connected to the slider 322, the first end of the transmission arm 311 moves to the first position along with the slider 322, and meanwhile, the second end of the transmission arm 311 moves in the direction opposite to the first end, so as to drive the first rack 343 to move, the first rack 343 drives the gear 344 to rotate, and the gear 344 drives the second rack 345 to move to the back of the first fastening member 123, and the first fastening member 123 is abutted against the first fastening member 123, so as to limit the movement of the first fastening member 123, so that the first fastening member 123 cannot be disengaged from the second fastening member, and further, the cover 110 cannot be opened relative to the cooker body 210.

According to the utility model discloses a cooking utensil is through setting up link gear 300 to make link gear 300 respond to opening of steam apron 122 and lock lid 110 in the closed position, this scheme can guarantee to lock lid 110 in the closed position when steam apron 122 is opened, also makes lid 110 unable open, thereby can avoid the liquid outflow in the steam generation chamber. The scheme is ingenious in design and convenient to realize.

The utility model also provides a cooking utensil, this cooking utensil includes a kind of deep pot body 210, lid 110, lid switching mechanism, steam generator 120 and link gear. In the present embodiment, the linkage mechanism may be configured to act on the steam cover opening and closing mechanism in response to the action of the cover opening and closing mechanism, so that the steam cover 122 is locked in the closed position when the cover 110 is opened. This arrangement ensures that the steam cover 122 is in the closed position when the cover 110 is opened, thereby preventing liquid from escaping from the steam generating chamber.

The link mechanism is substantially the same as the link mechanism 300 described above, except that the link mechanism in the present embodiment is provided in the reverse direction with respect to the link mechanism 300. Specifically, when the cover body is closed, the cover body can act on the linkage mechanism, and the linkage mechanism can move to be far away from the first buckling piece or the second buckling piece, so that the steam cover plate can be normally opened. When the cover body is opened, the linkage mechanism can generate reverse motion under the action of the spring, so that the linkage mechanism moves to the back of the first buckle part or the second buckle part and abuts against the first buckle part or the second buckle part to limit the motion of the first buckle part or the second buckle part, the first buckle part cannot be disengaged from the second buckle part, and the steam cover plate cannot be opened.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims

1. A cooking appliance, comprising:

a pot body (210);

the cover body (110) is pivotally connected to the pot body and is arranged in an opening and closing manner relative to the pot body (210), and when the cover body (110) covers the pot body (210), a cooking space is formed between the cover body (110) and the pot body (210);

a lid opening/closing mechanism capable of placing the lid (110) in a closed position and an open position;

a steam generating device (120), the steam generating device (120) being disposed on the cover (110), the steam generating device (120) comprising:

a steam generating chamber (121), the steam generating chamber (121) for containing water to be heated to generate steam, the steam generating chamber (121) being communicable with the cooking space to introduce the steam into the cooking space; and

a steam cover plate (122), the steam cover plate (122) being pivotably connected to the cover body (110) and being openable and closable with respect to the steam generating chamber (121) to open or close the steam generating chamber (121);

a linkage mechanism (300), the linkage mechanism (300) being configured to act on the lid opening and closing mechanism in response to opening of the steam cover (122) to lock the lid (110) in the closed position.

2. The cooking appliance according to claim 1, wherein the linkage mechanism (300) is configured to act on the lid opening and closing mechanism to unlock the lid (110) in response to the closing of the steam cover (122).

3. The cooking appliance of claim 1, wherein the linkage (300) is disposed between the steam cover plate (122) and the lid opening and closing mechanism, and the linkage (300) includes a locking device (310), the locking device (310) being movable between a locked position and an unlocked position.

4. The cooking appliance according to claim 3, wherein the linkage mechanism (300) further comprises an actuating device (320), one end of the actuating device (320) being contactable with the steam cover plate (122) and the other end of the actuating device (320) being operable on the locking device (310).

5. Cooking appliance according to claim 4, wherein the actuating means (320) is movable between a first position and a second position.

6. The cooking appliance according to claim 5, wherein the steam cover (122) is configured to act on the one end of the actuating means (320) when closed to move the actuating means (320) from the first position to the second position, the locking means (310) being configured to move from the locked position to the unlocked position when the actuating means (320) is moved from the first position to the second position.

7. The cooking appliance of claim 5, wherein the linkage (300) further comprises a biasing member configured to apply a biasing force to the actuating device (320) when the steam cover (122) is opened such that the actuating device (320) moves from the second position to the first position, the locking device (310) being configured to move from the unlocked position to the locked position when the actuating device (320) moves from the second position to the first position.

8. The cooking appliance according to claim 6, wherein the one end of the actuating means (320) comprises a ramp (321), the steam cover plate (122) being configured to push the ramp (321) downwards when closed to move the actuating means (320) from the first position to the second position.

9. The cooking appliance according to claim 6, wherein the linkage mechanism (300) further comprises a transmission (340), the transmission (340) being disposed between the actuating device (320) and the locking device (310), the transmission (340) being configured to translate a movement of the actuating device (320) from the first position to the second position into a movement of the locking device (310) from the locked position to the unlocked position.

10. The cooking appliance according to claim 9, wherein the transmission (340) comprises a first transmission connected to the actuating means (320) and a second transmission connected to the first transmission, the second transmission being engaged with the locking means (310).

11. The cooking appliance according to claim 10, wherein the actuating means (320) comprises a slider (322).

12. The cooking appliance according to claim 11, wherein the first transmission comprises a transmission arm (311) and a support shaft (312) supporting the transmission arm (311), the support shaft (312) being located outside the slider (322), the transmission arm (311) being pivotable about the support shaft (312), the transmission arm (311) having a first end and a second end opposite to the first end, the first end being connected to the slider (322), the second end being connected to the second transmission.

13. The cooking appliance according to claim 12, wherein the second transmission comprises a first rack (343) and a gear (344) engaged with the first rack (343), the first rack (343) being connected to the second end, the locking device (310) comprising a second rack (345) engaged with the gear (344).

14. The cooking appliance according to claim 12, wherein a minimum distance between the first end and the support shaft (312) is less than a minimum distance between the second end and the support shaft (312).

15. The cooking appliance according to claim 12 or 14, wherein the minimum distance between the first end and the support shaft (312) is greater than 3 mm.

16. The cooking appliance according to claim 12 or 14, wherein the minimum distance between the first end and the support shaft (312) is greater than the movement stroke of the actuating means (320) from the first position to the second position.

17. The cooking appliance according to claim 13, further comprising a lid-opening button (124), the lid-opening button (124) being provided on a side wall of the lid body (110), the lid-opening button (124) being configured to act on the lid body opening and closing mechanism when operated so as to enable the lid body (110) to be opened with respect to the pot body (210).

18. The cooking appliance according to claim 17, wherein the lid opening and closing mechanism comprises a first fastener (123) provided on the lid (110) and a second fastener (125) provided on the pot (210), the first fastener (123) being capable of cooperating with the second fastener (125) to place the lid (110) in the closed position, wherein the lid release button (124) is capable of acting on the first fastener (123) when operated to move the first fastener (123) out of cooperation with the second fastener (125).

19. The cooking utensil of claim 18 wherein the locking device (310) further comprises a stop (346) disposed below the second rack (345), the stop (346) configured to abut against a back side of the first fastener (123) when the locking device (310) is in the locked position to limit movement of the first fastener (123) such that the first fastener (123) cannot be disengaged from the second fastener (125) and is away from the back side of the first fastener (123) when the locking device (310) is in the unlocked position.

20. A cooking appliance, comprising:

a pot body (210);

a steam generating chamber (121), the steam generating chamber (121) for containing water to be heated to generate steam, the steam generating chamber (121) being communicable with the cooking space to introduce the steam into the cooking space;

a steam cover plate opening and closing mechanism capable of making the steam cover plate (122) in a closed position and an open position;

a linkage mechanism disposed between the lid opening and closing mechanism and the steam cover opening and closing mechanism, and configured to act on the steam cover opening and closing mechanism in response to an action of the lid opening and closing mechanism so as to lock the steam cover (122) in the closed position when the lid (110) is opened.

21. The cooking appliance of claim 20, wherein the steam cover plate opening and closing mechanism comprises a first catch (127) provided on the steam cover plate (122) and a second catch (128) provided on the lid body (110), the first catch being engageable with the second catch to place the steam cover plate (122) in the closed position, wherein the linkage mechanism is operable on the first catch and/or the second catch to lock the steam cover plate (122) in the closed position.