Cooking utensils

Abstract

The present invention provides a cooking utensil, which comprises a pot body, a cover body, a cover body opening and closing mechanism, a steam generating device and a linkage mechanism. The cover body opening and closing mechanism is used to lock the cover body in a closed position or release it to an open position. The steam generating device comprises a steam generating chamber, a steam cover plate, a steam cover plate opening and closing mechanism and a heating device, wherein the steam generating chamber is used to contain water to be heated to generate steam, and the steam generating chamber can be communicated with a cooking space. The steam cover plate is connected to the cover body. The steam cover plate opening and closing mechanism is arranged at the steam generating chamber to lock or open the steam cover plate. The heating device is used to heat the steam generating chamber. The linkage mechanism is linked with the cover body opening and closing mechanism and the steam cover plate opening and closing mechanism and is configured to act on the cover body opening and closing mechanism in response to the opening of the steam cover plate, so as to lock the cover body in a closed position. The cooking utensil according to the present invention can lock the cover body in a closed position when the steam cover plate is opened, thereby preventing the liquid in the steam generating chamber from flowing out.

Description

Technical Field

[0001] The present invention generally relates to the field of electric heating appliances, and more particularly to a cooking appliance. Background Art

[0002] In order to achieve the purpose of steam recovery or steam moisturizing, a cooking appliance usually has a steam cup in the pot body for generating steam. In order to effectively reduce the volume of the cooking appliance, the applicant has designed a new cooking appliance in which the steam cup is arranged in the cover body. Since the steam cup is arranged in the cover body, and the cover body needs to be opened and closed frequently, when the cover body is opened, the steam cup cover may be opened due to misoperation, thereby causing the water in the steam cup to pour out, bringing risks.

[0003] Therefore, it is necessary to provide a cooking appliance to at least partially solve the above-mentioned problems. Summary of the invention

[0004] In order to at least partially solve the above technical problems, according to one aspect of the present invention, a cooking utensil is provided, the cooking utensil comprising:

[0005] pot body;

[0006] A cover body, the cover body is openably and closably arranged 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;

[0007] A cover opening and closing mechanism, the cover opening and closing mechanism is used to lock the cover in a closed position or release it to an open position;

[0008] A steam generating device, wherein the steam generating device is arranged on the cover body, and the steam generating device comprises:

[0009] a steam generating chamber, the steam generating chamber being used to contain 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;

[0010] a steam cover plate connected to the cover body;

[0011] A steam cover opening and closing mechanism, which is arranged at the steam generating chamber and is used to lock or open the steam cover;

[0012] a heating device, the heating device being arranged in the cover body and being used for heating the steam generating chamber,

[0013] A linkage mechanism is linked with the cover opening and closing mechanism and the steam cover opening and closing mechanism and is configured to act on the cover opening and closing mechanism in response to the opening of the steam cover to lock the cover at the closed position.

[0014] According to the cooking appliance of the present invention, by providing a linkage mechanism, and making the linkage mechanism linked with the cover opening and closing mechanism and the steam cover opening and closing mechanism, and making the linkage mechanism lock the cover in the closed position in response to the opening of the steam cover, this scheme can ensure that the cover is locked in the closed position when the steam cover is opened, that is, the cover cannot be opened, thereby preventing the liquid in the steam generating chamber from flowing out. This scheme is cleverly designed and easy to implement.

[0015] Preferably, the linkage mechanism is configured to act on the cover opening and closing mechanism in response to the closing of the steam cover to release the lock on the cover, thereby further enabling the cover to be opened while the steam cover is in a closed state, thereby improving safety.

[0016] Preferably, the linkage mechanism is arranged between the steam cover opening and closing mechanism and the cover body opening and closing mechanism, and the linkage mechanism includes a locking device, and the locking device is movable between a locking position and an unlocking position. Thus, the cover body can be locked and unlocked by moving the locking device, so that the structure is simple and the operation is convenient.

[0017] Preferably, the linkage mechanism further comprises a transmission device, the transmission device is arranged between the steam generating device and the locking device, one end of the transmission device is contactable with the steam cover plate, and the locking device is connected to the transmission device. Thus, the force of the steam cover plate can be transmitted to the locking device through the transmission device, and the linkage effect of the linkage mechanism can be achieved by the interaction between the transmission device and the locking device. This solution can amplify the stroke of the locking device.

[0018] Preferably, the transmission device is movable between the first position and the second position. Thus, the movement of the locking device can be achieved by the movement of the transmission device.

[0019] Preferably, the steam cover is configured to act on the one end of the transmission device when the cover is closed, so that the transmission device moves from the first position to the second position, and the locking device is configured to move from the locking position to the unlocking position when the transmission device moves from the first position to the second position. Thus, the movement of the locking device can be achieved by the movement of the transmission device. This solution can enlarge the travel of the locking device.

[0020] Preferably, the linkage mechanism further comprises a biasing member, wherein the biasing member is configured to apply a biasing force to the transmission device when the steam cover is opened, so that the transmission device moves from the second position to the first position, and the locking device is configured to move from the unlocking position to the locking position when the transmission device moves from the second position to the first position. Thus, when the steam cover is in the open state, the cover body can be always locked in the closed position by biasing the locking device in the locking position, thereby preventing the risk caused by misoperation.

[0021] Preferably, the one end of the transmission device comprises an inclined surface, and the steam cover is configured to push the inclined surface downward when the cover is closed, so that the transmission device moves from the first position to the second position. Thus, the transmission device can be driven to move by the substantially downward force of the steam cover.

[0022] Preferably, the transmission device comprises a sliding block, thereby simplifying the structure.

[0023] Preferably, the locking device comprises a locking arm and a support shaft supporting the locking arm, the support shaft is located outside the slider, the locking arm is pivotable around the support shaft, the locking arm has a first end and a second end opposite to the first end, the first end is connected to the slider, and the second end has an arc-shaped wall. This solution can amplify the movement stroke of the second end.

[0024] Preferably, the minimum distance between the first end and the support shaft is smaller than the minimum distance between the second end and the support shaft. This solution can amplify the movement stroke of the second end.

[0025] Preferably, the minimum distance between the first end and the support shaft is greater than 3 mm. This solution can enlarge the movement stroke of the second end.

[0026] Preferably, the minimum distance between the first end and the support shaft is greater than the movement stroke of the transmission device from the first position to the second position. This solution can amplify the movement stroke of the second end.

[0027] Preferably, the cooking utensil further comprises a lid opening button, which is arranged on the side wall of the lid body and is used to act on the lid opening and closing mechanism when operated, so that the lid body can be opened relative to the pot body. Thus, the user can operate conveniently by arranging the lid opening button, thereby conveniently completing the lid opening action.

[0028] Preferably, the lid opening and closing mechanism includes a first fastening member provided on the lid and a second fastening member provided on the pot body, wherein the first fastening member can cooperate with the second fastening member to place the lid in the closed position, wherein the lid opening button can act on the first fastening member when operated to move the first fastening member to disengage from the second fastening member. Thus, the lid can be separated from the pot body by operating the lid opening button, i.e., the lid can be opened relative to the pot body. Moreover, the cooperation between the first fastening member and the second fastening member can be easily achieved, so that the cooking utensil has a compact structure.

[0029] Preferably, the locking device is configured such that when the locking device is in the locking position, the arcuate wall abuts against the back of the first fastening member to limit the movement of the first fastening member, so that the first fastening member cannot be disengaged from the second fastening member, and when the locking device is in the unlocking position, the arcuate wall is away from the back of the first fastening member. This solution can conveniently achieve locking and unlocking.

[0030] The present invention also provides a cooking utensil, comprising:

[0031] pot body;

[0032] A cover body, the cover body is openably and closably arranged 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;

[0033] A cover opening and closing mechanism, the cover opening and closing mechanism is used to lock the cover in a closed position or release it to an open position;

[0034] A steam generating device, wherein the steam generating device is arranged on the cover body, and the steam generating device comprises:

[0035] a steam generating chamber, the steam generating chamber being used to contain 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;

[0036] a steam cover plate connected to the cover body;

[0037] a steam cover opening and closing mechanism, the steam cover opening and closing mechanism being used to lock the steam cover in a closed position or release it to an open position; and

[0038] a heating device, the heating device being arranged in the cover body and being used for heating the steam generating chamber,

[0039] A linkage mechanism is linked with the cover body opening and closing mechanism and the steam cover plate opening and closing mechanism, and the linkage mechanism is configured to act on the steam cover plate opening and closing mechanism in response to the movement of the cover body opening and closing mechanism, so that the steam cover plate is locked in the closed position when the cover body is opened.

[0040] Preferably, the steam cover opening and closing mechanism comprises a first clip arranged on the steam cover and a second clip arranged on the cover body, the first clip can cooperate with the second clip to place the steam cover in the covering position, wherein the linkage mechanism can act on the first clip and / or the second clip to lock the steam cover in the covering position.

[0041] According to the cooking appliance of the present invention, by providing a linkage mechanism, and making the linkage mechanism configured to lock the steam cover plate in the closed position when the cover body is in the open position, this solution can ensure that the steam cover plate is in the closed position when the cover body is opened, thereby preventing the liquid in the steam generating chamber from flowing out. This solution is ingeniously designed and easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to make the advantages of the present invention more easily understood, the present invention briefly described above will be described in more detail by referring to the specific embodiments shown in the accompanying drawings. It can be understood that these drawings only depict typical embodiments of the present invention and therefore should not be considered as limiting the scope of protection thereof, and the present invention is described and explained with additional characteristics and details through the accompanying drawings.

[0043] Figure 1 A three-dimensional view of a cooking appliance according to a preferred embodiment of the present invention, wherein the steam cover is in a closed position;

[0044] Figure 2 for Figure 1 Another perspective view of the cooking appliance shown with the steam cover in an open position;

[0045] Figure 3 for Figure 1 Another perspective view of the cooking appliance shown, wherein the structure related to the linkage mechanism is shown for ease of observation;

[0046] Figure 4 for Figure 2 Another perspective view of the cooking appliance shown, wherein the structure related to the linkage mechanism is shown for ease of observation;

[0047] Figure 5 When viewed from above Figure 1 A three-dimensional view of a cover of a cooking utensil shown in FIG. 1 , wherein for ease of observation, a structure related to the linkage mechanism is shown;

[0048] Figure 6 When viewed from below Figure 1 A three-dimensional view of the cover of the cooking appliance is shown in FIG. 1 , wherein for ease of observation, structures related to the linkage mechanism are shown. DETAILED DESCRIPTION

[0049] In the discussion below, details are given to provide a more thorough understanding of the present invention. However, it will be appreciated by those skilled in the art that the present invention can be implemented without one or more of these details. In certain examples, some technical features known in the art are not described in detail to avoid confusion with the present invention. It should be noted that the terms "upper", "lower", "front", "back", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be limiting.

[0050] Below, refer to Figures 1 to 6 The preferred embodiment of the cooking appliance of the present invention is described. It is understood that the cooking appliance according to the present invention can be an electric rice cooker, an electric pressure cooker or other cooking appliances, and the cooking appliance according to the present invention can have various functions such as cooking porridge in addition to the function of cooking rice.

[0051] like Figure 1 As shown, the cooking utensil 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 inner pot cooking cavity, into which the inner pot can be freely placed or taken out to facilitate cleaning of the inner pot. The inner pot is usually made of a metal material and has a circular opening on the upper surface for holding materials to be heated, such as rice, soup, etc. The pot body 210 may include a heating device for heating the inner pot.

[0052] The cover body 110 according to the present invention will be described in detail below.

[0053] like Figure 1 As shown, the cover 110 is substantially in the shape of a rounded rectangular parallelepiped, and substantially corresponds to the shape of the pot body 210. The cover 110 can be disposed on the upper side of the pot body 210, and is used to cover the pot body 210 in the closed state. The cover 110 can be in a closed position and an open position relative to the pot body 210, respectively. Preferably, the cover 110 can be switched between the open position and the closed position in a pivoting manner. In one embodiment, the cover 110 can be connected to the pot body 210 by a pivot device.

[0054] Further, the cover body 110 includes a cover 112 and a removable cover 113 (see Figure 6), the removable cover 113 is substantially located below the face cover 112 and is detachably connected to the face cover 112. The removable cover 113 is substantially circular and is used to cover the upper surface opening of the inner pot when the cover body 110 is covered to the pot body 210 to form a cooking space.

[0055] like Figure 1 and Figure 2 As shown, the cover 110 also includes a steam generating device 120 and a steam channel (not shown) arranged in the cover 110. The steam generating device 120 includes a steam generating chamber 121 and a steam cover plate 122, and the steam generating chamber 121 can store water for generating steam. The steam cover plate 122 can be in a closed position and an open position relative to the steam generating chamber 121. Preferably, the steam cover plate 122 can switch between the closed position and the open position in a pivoting manner. Preferably, the steam cover plate 122 is connected to the cover 110, and the upper surface of the steam cover plate 122 forms a part of the upper surface of the face cover 112. This preferred solution can make the structure of the cover 110 more compact, and at the same time, it is convenient for the user to open the steam cover plate 122 for operations such as adding water or cleaning. Preferably, a sealing member 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 a closed position.

[0056] like Figure 2 and Figure 3 As shown, preferably, the steam generating device 120 further comprises a steam cover opening and closing mechanism, which is arranged at the steam generating chamber 121, and is used to lock or open the steam cover 122. Specifically, the steam cover opening and closing mechanism can make the steam cover 122 in a closed position and an open position. Exemplarily, the steam cover opening and closing mechanism can include a first latch 127 and a second latch 128 respectively arranged on the steam cover 122 and the cover body 110, and the first latch 127 and the second latch 128 can cooperate with each other to enable the steam cover 122 to be in a closed position.

[0057] The steam generating device 120 further includes a heating device arranged around the steam generating chamber 121, for heating the water contained in the steam generating chamber 121 when necessary (e.g., during cooking or during heat preservation) to generate steam. In one embodiment, the heating device may include a bottom heating plate and a side wall heating plate extending upward from the bottom heating plate, and electric heating pipes may be arranged in the bottom heating plate and the side wall heating plate. In other embodiments, the heating device may also be an electromagnetic heating device.

[0058] The steam generating device 120 and the cooking space may be connected via a steam channel. The steam channel includes a steam inlet and a steam outlet. The steam inlet may be provided on the steam cover plate 122, and the steam outlet is generally provided on the removable cover 113. The steam generated in the steam generating chamber 121 enters the steam channel through the steam inlet, and is then transported to the inner pot via the steam channel and the steam outlet to prevent the rice in the inner pot from drying out and affecting the taste.

[0059] The cooking utensil further includes a cover opening and closing mechanism, which is used to lock the cover 110 in a closed position or release it to an open position. The cover opening and closing mechanism includes a first fastening member 123 provided on the cover and a second fastening member (not shown) provided on the pot body. When the cover is closed on the pot body, the first fastening member 123 can cooperate with the second fastening member to put the cover in a closed position. The cooking utensil further includes a cover opening button 124, which is provided on the side wall of the cover 110. The cover opening button 124 can be pushed by a user, and when pushed, it can act on the first fastening member 123 to move the first fastening member 123 to disengage from the second fastening member, so that the cover 110 can be opened relative to the pot body 210.

[0060] As an example, the first fastening member 123 can pivot about a pivot axis (not shown) and disengage from the second fastening member when pivoting to a certain angle. Accordingly, the cover opening button 124 can be provided with a portion capable of pressing the first fastening member 123, so that when operated, the first fastening member 123 is pressed by the portion, causing the first fastening member 123 to pivot and disengage from the second fastening member.

[0061] like Figure 3 to Figure 6 As shown, the cooking appliance 200 also includes a linkage mechanism 300, which is arranged in the cover 110. The linkage mechanism 300 is linked with the cover opening and closing mechanism and the steam cover opening and closing mechanism and is arranged between the steam cover opening and closing mechanism and the cover opening and closing mechanism. The linkage mechanism 300 can act on the cover opening and closing mechanism in response to the opening of the steam cover 122 to lock the cover 110 in a closed position to prevent the cover 110 from accidentally opening and causing the water in the steam generating chamber to flow out. The linkage mechanism 300 is also configured to act on the cover opening and closing mechanism in response to the closing of the steam cover 122 to release the lock on the cover 110, so that the cover 110 can be opened normally when the steam cover 122 is closed.

[0062] like Figure 5As shown, the linkage mechanism 300 is disposed between the steam cover plate 122 and the first buckle 123. Specifically, the linkage mechanism 300 includes a locking device 310 and a transmission device 320 connected to the locking device 310. The transmission device 320 is disposed between the steam generating device 120 and the locking device 310. The transmission device 320 is movable between a first position and a second position. The locking device 310 is in the locked position (such as Figure 3 as shown) and unlocked position (as shown Figure 4 The locking position corresponds to the first position, and the unlocking position corresponds to the second position, that is, when the transmission device 320 moves from the first position to the second position, the locking device 310 can move from the locking position to the unlocking position.

[0063] The transmission device 320 preferably includes a slider 322, one end of which has an inclined surface 321, and the inclined surface 321 can contact the steam cover plate 122. Specifically, when the steam cover plate 122 is closed, the steam cover plate 122 can push the inclined surface 321 downward, and the inclined surface 321 can move the slider 322 from the first position to the second position when being pushed. Exemplarily, the first buckle 127 provided on the steam cover plate 122 can be used as a trigger for pushing the inclined surface 321 to simplify the structure of the cover body.

[0064] The linkage mechanism 300 further 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 body 110. When the slider 322 moves from the first position to the second position, the spring 330 may be compressed so that the spring 330 is in a deformed state. When the steam cover 122 is opened, the slider 322 may return from the second position to the first position under the restoring force of the spring 330, and the locking device 310 may be configured to be able to move from the unlocked position to the locked position when the slider 322 moves from the second position to the first position.

[0065] like Figure 5 and Figure 6 As shown, the locking device 310 includes a locking arm 311 and a support shaft 312 supporting the locking arm 311. The support shaft 312 is located outside the slider 322 and is fixedly arranged in the cover body 110. The locking arm 311 is rotatably connected to the support shaft 312. The locking 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 with the slider 322, and the second end has an arc wall 313. When the first end moves with the slider 322, the arc wall 313 of the second end can rotate around the support shaft 312 between the locking position and the unlocking position.

[0066] The locking device 310 is constructed such that when it is in the locked position, the arcuate wall 313 abuts against the back side of the first fastener 123 to limit the movement of the first fastener 123, so that the first fastener 123 cannot be disengaged from the second fastener, and when it is in the unlocked position, the arcuate wall 313 is away from the back side of the first fastener 123, so that the first fastener 123 can be disengaged from the second fastener.

[0067] In order to achieve the enlargement of the stroke of the second end of the locking arm 311, preferably, 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. 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 between the first end and the support shaft 312 is greater than 3 mm.

[0068] Preferably, the minimum distance L1 between the first end and the support shaft 312 is greater than a moving stroke L3 of the transmission device 320 from the first position to the second position, wherein L3 may be 3-6 mm.

[0069] In actual operation, when the steam cover plate 122 is closed, Figure 4 As shown, the steam cover 122 pushes the inclined surface 321 downward, and the inclined surface 321 is pushed to move the slider 322 from the first position to the second position. Since the first end of the locking arm 311 is connected to the slider 322, the first end of the locking arm 311 moves to the second position with the slider 322. At the same time, the second end of the locking arm 311 rotates away from the first buckle 123, so that the cover opening button 124 can operate the cover opening and closing mechanism normally, so that the cover 110 can be opened relative to the pot body 210.

[0070] When the steam cover 122 is opened, Figure 3 As shown, the slider 322 returns from the second position to the first position under the action of the spring 330. Since the first end of the locking arm 311 is connected to the slider 322, the first end of the locking arm 311 moves to the first position along with the slider 322. At the same time, the second end of the locking arm 311 rotates in the direction opposite to the above-mentioned rotation direction to the back of the first fastening member 123, abuts against the first fastening member 123, and restricts the movement of the first fastening member 123, so that the first fastening member 123 cannot be disengaged from the second fastening member, thereby making it impossible for the cover body 110 to be opened relative to the pot body 210.

[0071] According to the cooking appliance of the present invention, by providing the linkage mechanism 300, and making the linkage mechanism 300 lock the cover body 110 in the closed position in response to the opening of the steam cover plate 122, this solution can ensure that the cover body 110 is locked in the closed position when the steam cover plate 122 is opened, that is, the cover body 110 cannot be opened, thereby preventing the liquid in the steam generating chamber from flowing out. This solution is cleverly designed and easy to implement.

[0072] The present invention also provides a cooking utensil, which includes a pot body 210, a cover body 110, a cover body opening and closing mechanism, a steam generating device 120 and a linkage mechanism. In this embodiment, the linkage mechanism can be configured to act on the steam cover plate opening and closing mechanism in response to the action of the cover body opening and closing mechanism, so that the steam cover plate 122 is locked in the closed position when the cover body 110 is opened. This solution can ensure that the steam cover plate 122 is in the closed position when the cover body 110 is opened, thereby preventing the liquid in the steam generating chamber from flowing out.

[0073] Among them, the linkage mechanism is substantially the same as the linkage mechanism 300 described above, except that the linkage mechanism in this embodiment is arranged in the opposite direction relative to the linkage mechanism 300 described above. Specifically, when the cover body is closed, the cover body can act on the linkage mechanism. For example, the first buckle on the cover body can be used as a trigger for the linkage mechanism to simplify the structure of the cover body. The linkage mechanism can move away from the first buckle or the second buckle, so that the steam cover can be opened normally. When the cover body is opened, the linkage mechanism can move in the opposite direction under the action of the spring, so as to move to the back of the first buckle or the second buckle, abut against the first buckle or the second buckle, and limit the movement of the first buckle or the second buckle, so that the first buckle cannot be disengaged from the second buckle, thereby making the steam cover unable to be opened.

[0074] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "component" and the like appearing herein may refer to either a single part or a combination of multiple parts. Terms such as "installation" and "setting" and the like appearing herein may refer to either a component being directly attached to another component or a component being attached to another component through an intermediate. Features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0075] The present invention has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and illustration, and are not intended to limit the present invention to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. A cooking utensil, characterized in that: include: Claypot(210); a cover body (110), the cover body (110) being arranged to be openable and closable relative to the pot body (210); 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 cover opening and closing mechanism, the cover opening and closing mechanism is used to lock the cover (110) in a closed position or release it to an open position; A steam generating device (120), wherein the steam generating device (120) is arranged on the cover body (110), and the steam generating device (120) comprises: a steam generating chamber (121), the steam generating chamber (121) being used to contain water to be heated to generate steam, the steam generating chamber (121) being able to communicate with the cooking space so as to introduce the steam into the cooking space; a steam cover plate (122), the steam cover plate (122) being connected to the cover body (110); A steam cover opening and closing mechanism, which is arranged at the steam generating chamber and is used to lock or open the steam cover; a heating device, the heating device being arranged in the cover body (110) and being used for heating the steam generating chamber (121), A linkage mechanism (300) is linked with the cover opening and closing mechanism and the steam cover opening and closing mechanism and is configured to act on the cover opening and closing mechanism in response to the opening of the steam cover (122) so as to lock the cover (110) in the closed position.

2. The cooking device according to claim 1, characterized in that: The linkage mechanism (300) is configured to act on the cover opening and closing mechanism in response to the closing of the steam cover plate (122) so as to release the lock on the cover (110).

3. The cooking device according to claim 1, characterized in that: The linkage mechanism (300) is arranged between the steam cover opening and closing mechanism and the cover body opening and closing mechanism, and the linkage mechanism (300) comprises a locking device (310), and the locking device (310) is movable between a locking position and an unlocking position.

4. The cooking device according to claim 3, characterized in that: The linkage mechanism (300) further comprises a transmission device (320), wherein the transmission device (320) is arranged between the steam generating device (120) and the locking device (310), one end of the transmission device (320) is contactable with the steam cover plate (122), and the locking device (310) is connected to the transmission device (320).

5. The cooking device according to claim 4, characterized in that: The transmission device (320) is movable between a first position and a second position.

6. The cooking device according to claim 5, characterized in that: The steam cover (122) is configured to act on one end of the transmission device (320) when the cover is closed, so that the transmission device (320) moves from the first position to the second position, and the locking device (310) is configured to move from the locking position to the unlocking position when the transmission device (320) moves from the first position to the second position.

7. The cooking device according to claim 5, characterized in that: The linkage mechanism (300) further includes a biasing member, which is configured to apply a biasing force to the transmission device (320) when the steam cover (122) is opened, so that the transmission device (320) moves from the second position to the first position, and the locking device (310) is configured to move from the unlocking position to the locking position when the transmission device (320) moves from the second position to the first position.

8. The cooking device according to claim 6, characterized in that: The one end of the transmission device (320) comprises a slope (321), and the steam cover plate (122) is configured to push the slope (321) downward when closed, so as to move the transmission device (320) from the first position to the second position.

9. The cooking device according to claim 6, characterized in that: The transmission device (320) includes a slider (322).

10. The cooking appliance according to claim 9, characterized in that The locking device (310) includes a locking arm (311) and a supporting shaft (312) supporting the locking arm (311), wherein the supporting shaft (312) is located outside the slider (322), and the locking arm (311) is pivotable around the supporting shaft (312), and the locking arm (311) has a first end and a second end opposite to the first end, wherein the first end is connected to the slider (322), and the second end has an arc-shaped wall (313).

11. The cooking device according to claim 10, characterized in that: A minimum distance between the first end and the support shaft (312) is smaller than a minimum distance between the second end and the support shaft (312).

12. The cooking device according to claim 10 or 11, characterized in that: The minimum distance between the first end and the support shaft (312) is greater than 3 mm.

13. The cooking device according to claim 10 or 11, characterized in that: The minimum distance between the first end and the support shaft (312) is greater than the movement stroke of the transmission device (320) from the first position to the second position.

14. The cooking appliance according to claim 10, characterized in that The cooking appliance further comprises a lid opening button (124), which is arranged on the side wall of the cover body (110). When the lid opening button (124) is operated, it acts on the cover body opening and closing mechanism so that the cover body (110) can be opened relative to the pot body (210).

15. The cooking appliance according to claim 14, characterized in that The cover opening and closing mechanism comprises a first fastening member (123) arranged on the cover (110) and a second fastening member arranged on the pot body (210), wherein the first fastening member (123) can cooperate with the second fastening member to place the cover (110) in the closed position, wherein the cover opening button (124) can act on the first fastening member (123) when operated, so that the first fastening member (123) moves to disengage from the second fastening member.

16. The cooking appliance according to claim 15, characterized in that The locking device (310) is constructed such that when the locking device (310) is in the locking position, the arcuate wall (313) abuts against the back side of the first buckle (123) to limit the movement of the first buckle (123), so that the first buckle (123) cannot be disengaged from the second buckle, and when the locking device (310) is in the unlocking position, the arcuate wall (313) is away from the back side of the first buckle (123).

17. A cooking utensil, characterized in that: include: Claypot(210); a cover body (110), the cover body (110) being arranged to be openable and closable relative to the pot body (210); 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 cover opening and closing mechanism, the cover opening and closing mechanism is used to lock the cover (110) in a closed position or release it to an open position; A steam generating device (120), wherein the steam generating device (120) is arranged on the cover body (110), and the steam generating device (120) comprises: a steam generating chamber (121), the steam generating chamber (121) being used to contain water to be heated to generate steam, the steam generating chamber (121) being able to communicate with the cooking space so as to introduce the steam into the cooking space; a steam cover plate (122), the steam cover plate (122) being connected to the cover body (110); A steam cover opening and closing mechanism, the steam cover opening and closing mechanism is used to lock the steam cover (122) in a closed position or release it to an open position; and a heating device, the heating device being arranged in the cover body (110) and being used for heating the steam generating chamber (121), A linkage mechanism is linked with the cover body opening and closing mechanism and the steam cover plate opening and closing mechanism, and the linkage mechanism is constructed to act on the steam cover plate opening and closing mechanism in response to the movement of the cover body opening and closing mechanism, so that the steam cover plate (122) is locked in the closed position when the cover body is opened.

18. The cooking appliance according to claim 17, characterized in that The steam cover opening and closing mechanism comprises a first fastener arranged on the steam cover and a second fastener arranged on the cover body, wherein the first fastener can cooperate with the second fastener to place the steam cover in the covering position, wherein the linkage mechanism can act on the first fastener and / or the second fastener to lock the steam cover in the covering position.

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