Cooking appliance

Abstract

The present application provides a cooking appliance, 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 can make the cover body in a closed position and an open position. The steam generating device comprises a steam generating cavity and a steam cover plate, the steam generating cavity is used for containing water to be heated to generate steam, and the steam generating cavity can be communicated with a cooking space to guide the steam into the cooking space. 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 cover the steam generating cavity. The linkage mechanism is configured to act on the cover body opening and closing mechanism in response to the opening of the steam cover plate to lock the cover body in the closed position. The cooking appliance according to the present application can lock the cover body in the closed position when the steam cover plate is opened, so that the liquid in the steam generating cavity can be prevented from flowing out.

Description

Technical Field

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

[0002] Cooking utensils typically incorporate a steam cup within the pot body to generate steam for steam recovery or moisture retention. To effectively reduce the size of the cooking appliance, the applicant has designed a novel cooking appliance in which the steam cup is incorporated into the lid. Because the steam cup is incorporated into the lid, which frequently needs to be opened and closed, the lid could be opened accidentally, potentially causing the water in the steam cup to spill out, posing a risk.

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

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

[0005] pot body;

[0006] a cover body, the cover body being 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, wherein the cover opening and closing mechanism is capable of placing the cover in a closed position and an open position;

[0008] A steam generating device, the steam generating device being arranged on the cover body, the steam generating device comprising:

[0009] a steam generating chamber for accommodating 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

[0010] a steam cover plate pivotally connected to the cover body and capable of opening and closing relative to the steam generating chamber to open or close the steam generating chamber;

[0011] A linkage mechanism is configured to act on the cover opening and closing mechanism in response to the opening of the steam cover to lock the cover in the closed position.

[0012] The cooking appliance of the present invention provides a linkage mechanism that locks the lid in the closed position in response to the opening of the steam cover. This solution ensures that the lid is locked in the closed position when the steam cover is opened, preventing the lid from opening and thus preventing liquid from flowing out of the steam generating chamber. This solution is ingenious and easy to implement.

[0013] 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 closed, thereby improving safety.

[0014] Preferably, the linkage mechanism is disposed between the steam cover and the cover opening and closing mechanism, and the linkage mechanism includes a locking device that is movable between a locked position and an unlocked position. Thus, the cover can be locked and unlocked by moving the locking device, resulting in a simple structure and convenient operation.

[0015] Preferably, the linkage mechanism further includes an actuating device, one end of which is contactable with the steam cover, and the other end of which is capable of acting on the locking device. Thus, the actuating device can transmit the force exerted by the steam cover to the locking device, and the linkage mechanism can be achieved through the interaction between the actuating device and the locking device.

[0016] Preferably, the actuating device is movable between a first position and a second position. Thus, the movement of the locking device can be achieved by the movement of the actuating device.

[0017] Preferably, the steam cover is configured to act on one end of the actuating device when the cover is closed, causing the actuating device to move from the first position to the second position. The locking device is configured to move from the locked position to the unlocked position when the actuating device moves from the first position to the second position. Thus, movement of the locking device can be achieved through movement of the actuating device. This solution can increase the travel of the locking device.

[0018] Preferably, the linkage mechanism further includes a biasing member configured to apply a biasing force to the actuating device when the steam cover is opened, causing the actuating device to move from the second position to the first position, and the locking device configured to move from the unlocked position to the locked position when the actuating device moves from the second position to the first position. Thus, when the steam cover is open, the locking device can be biased to the locked position at all times, thereby locking the cover body in the closed position, thereby preventing risks caused by misoperation.

[0019] Preferably, the one end of the actuating device comprises an inclined surface, and the steam cover is configured to push the inclined surface downward when the cover is closed, so as to move the actuating device from the first position to the second position. Thus, the actuating device can be driven to move by the generally downward force of the steam cover.

[0020] Preferably, the linkage mechanism further includes a transmission device, disposed between the actuating device and the locking device, the transmission device being configured to convert movement of the actuating device from the first position to the second position into movement of the locking device from the locked position to the unlocked position. This solution can amplify the travel of the locking device through the transmission device.

[0021] Preferably, the transmission device includes a first transmission device and a second transmission device connected to the first transmission device, the first transmission device is connected to the actuating device, and the second transmission device is engaged with the locking device. This solution can amplify the travel of the locking device through the transmission device.

[0022] Preferably, the actuating device comprises a slider, thereby simplifying the structure.

[0023] 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 the first end, the first end being connected to the slider, and the second end being connected to the second transmission device. This solution can amplify the motion range of the second end.

[0024] Preferably, the second transmission device includes a first rack and a gear engaged with the first rack, the first rack is connected to the second end, and the locking device includes a second rack engaged with the gear. This solution can amplify the movement stroke of the locking device.

[0025] 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.

[0026] Preferably, the minimum distance between the first end and the support shaft is greater than 3 mm. This solution can amplify the movement stroke of the second end.

[0027] 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. This solution can amplify the movement stroke of the second end.

[0028] Preferably, the cooking appliance further comprises a lid opening button, which is disposed on a side wall of the lid and is configured to, when operated, actuate the lid opening and closing mechanism to open the lid relative to the pot body. Thus, the provision of the lid opening button facilitates user operation, thereby conveniently completing the lid opening action.

[0029] Preferably, the lid opening and closing mechanism includes a first fastener provided on the lid and a second fastener provided on the pot body. The first fastener can cooperate with the second fastener to place the lid in the closed position. When the lid opening button is operated, it can act on the first fastener to move the first fastener and disengage the second fastener. 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. Furthermore, the first fastener and the second fastener can be easily engaged, making the cooking appliance compact.

[0030] Preferably, the locking device further comprises a blocking block disposed below the second rack, the blocking block being configured to abut against the back surface of the first fastening member when the locking device is in the locked position to restrict movement of the first fastening member, thereby preventing the first fastening member from disengaging from the second fastening member, and being configured to be away from the back surface of the first fastening member when the locking device is in the unlocked position. This solution facilitates locking and unlocking.

[0031] The present invention also provides a cooking utensil, comprising:

[0032] pot body;

[0033] a cover body, the cover body being 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;

[0034] a cover opening and closing mechanism, wherein the cover opening and closing mechanism is capable of placing the cover in a closed position and an open position;

[0035] A steam generating device, the steam generating device being arranged on the cover body, the steam generating device comprising:

[0036] 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;

[0037] a steam cover plate pivotally connected to the cover body and capable of opening and closing relative to the steam generating chamber to open or close the steam generating chamber;

[0038] a steam cover opening and closing mechanism, wherein the steam cover opening and closing mechanism can place the steam cover in a closed position and an open position;

[0039] A linkage mechanism is provided between 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 includes a first latch provided on the steam cover and a second latch provided on the cover body, wherein the first latch can cooperate with the second latch to place the steam cover in the closed position, wherein the linkage mechanism can act on the first latch and / or the second latch to lock the steam cover in the closed position.

[0041] The cooking appliance according to the present invention provides a linkage mechanism configured to lock the steam cover in the closed position when the lid is in the open position. This solution ensures that the steam cover is in the closed position when the lid is opened, thereby preventing liquid from flowing out of the steam generating chamber. 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 readily understood, the invention briefly described above will be described in more detail with reference to specific embodiments thereof shown in the accompanying drawings. It will be understood that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope, and the invention will be described and explained with additional specificity and detail through the accompanying drawings.

[0043] Figure 1 is a perspective 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 the 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 5When viewed from above Figure 1 A perspective view of the cover of the cooking utensil shown in FIG, wherein for ease of observation, structures related to the linkage mechanism are shown;

[0048] Figure 6 When viewed from below Figure 1 0014 is a perspective view of a cover of a cooking utensil shown in FIG. 1 , wherein for ease of observation, structures related to the linkage mechanism are shown. DETAILED DESCRIPTION

[0049] In the following discussion, details are provided to provide a more thorough understanding of the present invention. However, those skilled in the art will appreciate that the present invention can be practiced 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 cooking appliance according to the preferred embodiment of the present invention will be described. It is understood that the cooking appliance according to the present invention may be an electric rice cooker, an electric pressure cooker or other cooking appliance, and the cooking appliance according to the present invention may have various functions such as cooking porridge in addition to cooking rice.

[0051] like Figure 1 As shown, cooking appliance 200 includes a lid 110 and a pot body 210. Pot body 210 is generally rectangular in shape with rounded corners and a cylindrical inner cooking cavity. The inner pot can be freely inserted into and removed from the inner cooking cavity for easy cleaning. The inner pot is typically made of metal and has a circular opening on its upper surface for holding ingredients to be heated, such as rice or soup. Pot body 210 may include a heating device for heating the inner pot.

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

[0053] like Figure 1 As shown, the lid 110 is generally rectangular parallelepiped with rounded corners and substantially corresponds to the shape of the pot body 210. The lid 110 can be positioned above the pot body 210 and used to cover the pot body 210 when closed. The lid 110 can be positioned in a closed position and an open position relative to the pot body 210. Preferably, the lid 110 can pivot between the open and closed positions. In one embodiment, the lid 110 can be connected to the pot body 210 via a pivot mechanism.

[0054] Furthermore, the cover 110 includes a face cover 112 and a detachable cover 113 (see Figure 6 ), the detachable cover 113 is roughly located below the surface cover 112 and is detachably connected to the surface cover 112. The detachable cover 113 is roughly circular and is used to cover the upper surface opening of the inner pot when the lid 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) disposed therein. The steam generating device 120 includes a steam generating chamber 121 and a steam cover 122. The steam generating chamber 121 can store water for generating steam. The steam cover 122 can be in a closed position and an open position relative to the steam generating chamber 121. Preferably, the steam cover 122 can pivot between the closed position and the open position. Preferably, the steam cover 122 is connected to the cover 110, and the upper surface of the steam cover 122 forms a portion of the upper surface of the face cover 112. This preferred solution can make the structure of the cover 110 more compact, while making it easier for users to open the steam cover 122 for operations such as adding water or cleaning. Preferably, a sealing member 129 is also provided on the steam cover 122 to seal the steam generating chamber 121 when the steam cover 122 is in the closed position.

[0056] like Figure 2 and Figure 4 As shown, preferably, the steam generating device 120 further includes a steam cover opening and closing mechanism, which can position 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 provided 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 position the steam cover 122 in the closed position.

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

[0058] The steam generating device 120 and the cooking space can be connected via a steam channel. The steam channel includes a steam inlet and a steam outlet. The steam inlet can be located on the steam cover 122, and the steam outlet is typically located on the removable lid 113. 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 steam outlet to prevent the rice in the inner pot from drying out and affecting the taste.

[0059] The cooking appliance also includes a lid opening and closing mechanism, which includes a first fastening member 123 disposed on the lid and a second fastening member 125 disposed on the pot body. When the lid is closed on the pot body, the first fastening member 123 engages with the second fastening member 125 to close the lid. The cooking appliance also includes a lid opening button 124 disposed on a side wall of the lid 110. The lid opening button 124 can be pushed by a user and, when pushed, acts on the first fastening member 123, causing the first fastening member 123 to move and disengage from the second fastening member 125, thereby opening the lid 110 relative to the pot body 210.

[0060] For example, the first fastening member 123 can pivot about a pivot axis (not shown) and, when pivoted to a certain angle, disengage from the second fastening member 125. Accordingly, the cover opening button 124 can 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, causing the first fastening member 123 to pivot and disengage from the second fastening member.

[0061] like Figures 3 to 6 As shown, the cooking appliance 200 further includes a linkage mechanism 300, which is disposed in the lid 110 and can act on the lid opening and closing mechanism in response to the opening of the steam cover 122 to lock the lid 110 in the closed position, thereby preventing the lid 110 from accidentally opening and causing water in the steam generating chamber to flow out. The linkage 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 lock on the lid 110, allowing the lid 110 to open normally when the steam cover 122 is closed.

[0062] like Figure 5 As shown, the linkage mechanism 300 is provided between the steam cover plate 122 and the first fastening member 123. Specifically, the linkage mechanism 300 includes a locking device 310 and an actuating device 320 capable of acting on the locking device 310. The actuating device 320 is movable between a first position and a second position. The locking device 310 is in the locked position (e.g., Figure 4 as shown) and unlocked position (as shown) Figure 3The locking position corresponds to the first position, and the unlocking position corresponds to the second position. That is, when the actuating 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 actuator 320 preferably includes a slider 322, one end of which has a slope 321 (e.g. Figure 4 As shown), the inclined surface 321 is in contact with the steam cover 122. Specifically, when the steam cover 122 is closed, the steam cover 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 pushed.

[0064] The linkage mechanism 300 also includes a biasing member, which can 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. When the slider 322 moves from the first position to the second position, the spring 330 is compressed, causing the spring 330 to be deformed. When the steam cover 122 is opened, the slider 322 can return from the second position to the first position under the restoring force of the spring 330. The locking device 310 is configured 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 As shown, the linkage mechanism 300 further includes a transmission device 340, which is disposed between the actuating device 320 and the locking device 310. The transmission device 340 can convert the movement of the actuating device 320 from the first position to the second position into the movement of the locking device 310 from the locked position to the unlocked position.

[0066] Furthermore, the transmission device 340 includes a first transmission device and a second transmission device connected to the first transmission device, the first transmission device is connected to the actuating device 320 , and the second transmission device is engaged with the locking device 310 .

[0067] Specifically, the first transmission device includes a transmission arm 311 and a support shaft 312 supporting the transmission arm 311. The support shaft 312 is located outside the slider 322 and is fixedly mounted in the cover 110. The transmission arm 311 is rotatably connected to the support shaft 312. The transmission arm 311 has a first end and a second end opposite the first end. The first end is connected to the slider 322 and can move with the slider 322. The second end is connected to the second transmission device. When the first end moves with the slider 322, the second end can drive the second transmission device to move in the opposite direction.

[0068] Further references Figure 5 and Figure 6The second transmission device includes a first rack 343 and a gear 344 engaged with the first rack 343. The first rack 343 is connected to the second end of the transmission arm 311, and the locking device 310 includes a second rack 345 engaged with the gear 344. When the first end moves with the slider 322, the second end can drive the first rack 343 to move, thereby causing the first rack 343 to drive the gear 344 to rotate, and then the second rack 345 will move with the rotation of the gear 344.

[0069] like Figure 5 and Figure 6 As shown, the locking device 310 includes a blocking block 346 arranged below the second rack 345, and the blocking block 346 is constructed to abut against the back side of the first fastening member 123 when the locking device 310 is in the locked position 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 125, and to be away from the back side of the first fastening member 123 when the locking device 310 is in the unlocked position, so that the first fastening member 123 can be disengaged from the second fastening member 125.

[0070] To achieve a larger stroke of the second end of the transmission arm 311, the minimum distance L1 between the first end and the support shaft 312 is preferably smaller than the minimum distance L2 between the second end and the support shaft 312. It should be noted that the first end referred to herein refers to the connection between the transmission arm 311 and the slider 322, and the second end refers to the connection between 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.

[0071] Preferably, the minimum distance L1 between the first end and the support shaft 312 is greater than the movement stroke of the actuating device 320 from the first position to the second position, wherein the movement stroke of the actuating device 320 from the first position to the second position may be 3-6 mm.

[0072] In actual operation, when the steam cover 122 is closed, Figure 3As shown, the steam cover 122 pushes the inclined surface 321 downward, which in turn causes the slider 322 to move from the first position to the second position. Since the first end of the transmission arm 311 is connected to the slider 322, the first end of the transmission arm 311 moves with the slider 322 to the second position. Simultaneously, the second end of the transmission arm 311 moves in the opposite direction of the first end, thereby driving the first rack 343 to move. The first rack 343 then drives the gear 344 to rotate, which in turn drives the second rack 345 to move away from the first latching member 123, allowing the lid opening button 124 to operate the lid opening and closing mechanism normally, thereby opening the lid 110 relative to the pot body 210.

[0073] When the steam cover 122 is opened, Figure 4 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 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. At the same time, the second end of the transmission arm 311 moves in the opposite direction to the first end, thereby driving the first rack 343 to move. The first rack 343 drives the gear 344 to rotate, and the gear 344 then drives the second rack 345 to move to the back side of the first fastening member 123, abutting against the first fastening member 123, restricting the movement of the first fastening member 123, so that the first fastening member 123 cannot be disengaged from the second fastening member, and thus the lid 110 cannot be opened relative to the pot body 210.

[0074] The cooking appliance of the present invention provides a linkage mechanism 300 that locks the lid 110 in the closed position in response to the opening of the steam cover 122. This solution ensures that the lid 110 is locked in the closed position when the steam cover 122 is opened, that is, the lid 110 cannot be opened, thereby preventing the liquid in the steam generating chamber from flowing out. This solution is ingenious and easy to implement.

[0075] The present invention also provides a cooking appliance comprising a pot body 210, a lid 110, a lid opening and closing mechanism, a steam generator 120, and a linkage mechanism. In this embodiment, the linkage mechanism can be configured to act on the steam cover opening and closing mechanism in response to the movement of the lid opening and closing mechanism, thereby locking the steam cover 122 in the closed position when the lid 110 is opened. This solution ensures that the steam cover 122 is in the closed position when the lid 110 is opened, thereby preventing liquid from flowing out of the steam generating chamber.

[0076] 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 reverse direction relative to the linkage mechanism 300 described above. Specifically, when the lid is closed, the lid acts on the linkage mechanism, causing the linkage mechanism to move away from the first or second latch, allowing the steam cover to open normally. When the lid is opened, the linkage mechanism, under the action of the spring, moves in the reverse direction, moving to the back of the first or second latch, abutting against the first or second latch, restricting the movement of the first or second latch, preventing the first latch from disengaging from the second latch, and thus preventing the steam cover from opening.

[0077] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the field of the invention. The terms used herein are for the purpose of describing specific implementations only and are not intended to limit the 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" 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 stated.

[0078] The present invention has been described through the above embodiments, but it should be understood that the above embodiments are for illustrative and illustrative purposes only and are not intended to limit the present invention to the described embodiments. Those skilled in the art will appreciate that various variations and modifications may be made based on the teachings of the present invention, and such variations and modifications fall within the scope of protection claimed in the present invention.

Claims

1. A cooking utensil, characterized in that: include: Claypot(210); a cover (110), the cover (110) being arranged to be openable and closable relative to the pot body (210); when the cover (110) covers the pot body (210), a cooking space is formed between the cover (110) and the pot body (210); a cover opening and closing mechanism, wherein the cover opening and closing mechanism is capable of placing the cover (110) in a closed position and an open position; A steam generating device (120), the steam generating device (120) being arranged on the cover (110), the steam generating device (120) comprising: 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 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 pivotally connected to the cover body (110) and capable of opening and closing relative to the steam generating chamber (121) to open or close the steam generating chamber (121); A linkage mechanism (300) is configured to act 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, and the linkage mechanism (300) is arranged between the steam cover (122) and the cover opening and closing mechanism.

2. The cooking appliance according to claim 1, wherein The linkage mechanism (300) is 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).

3. The cooking appliance according to claim 1, wherein The linkage mechanism (300) includes a locking device (310), and the locking device (310) is movable between a locking position and an unlocking position.

4. The cooking appliance according to claim 3, wherein: The linkage mechanism (300) further includes an actuating device (320), one end of which is contactable with the steam cover (122), and the other end of which is capable of acting on the locking device (310).

5. The cooking appliance according to claim 4, wherein: The actuating device (320) is movable between a first position and a second position.

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

7. The cooking appliance according to claim 5, wherein: The linkage mechanism (300) further includes a biasing member configured to apply a biasing force to the actuating device (320) when the steam cover (122) is opened, so that the actuating device (320) moves from the second position to the first position, and the locking device (310) is 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 One end of the actuating device (320) includes a slope (321), and the steam cover (122) is configured to push the slope (321) downward when the cover is closed, so as to move the actuating device (320) from the first position to the second position.

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

10. The cooking appliance according to claim 9, characterized in that The transmission device (340) includes a first transmission device and a second transmission device connected to the first transmission device, the first transmission device is connected to the actuating device (320), and the second transmission device is engaged with the locking device (310).

11. The cooking appliance according to claim 10, wherein The actuating device (320) includes a slider (322).

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

13. The cooking appliance according to claim 12, wherein: The second transmission device includes a first rack (343) and a gear (344) engaged with the first rack (343), the first rack (343) is connected to the second end, and the locking device (310) includes 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 smaller than a minimum distance between the second end and the support shaft (312).

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

17. The cooking appliance according to claim 13, wherein The cooking appliance further comprises a lid opening button (124), which is arranged on the side wall of the lid body (110). The lid opening button (124) is used to act on the lid opening and closing mechanism when operated, so that the lid body (110) can be opened relative to the pot body (210).

18. The cooking appliance according to claim 17, wherein The lid opening and closing mechanism comprises a first fastening member (123) provided on the lid (110) and a second fastening member (125) provided on the pot body (210), wherein the first fastening member (123) can cooperate with the second fastening member (125) to place the lid (110) in the closed position, wherein the lid opening button (124) can act on the first fastening member (123) when operated, so as to move the first fastening member (123) to disengage from the second fastening member (125).

19. The cooking appliance according to claim 18, wherein The locking device (310) further includes a blocking block (346) disposed below the second rack (345), wherein the blocking block (346) is configured to abut against the back surface of the first fastening member (123) when the locking device (310) is located in the locked position to limit movement of the first fastening member (123), so that the first fastening member (123) cannot be disengaged from the second fastening member (125), and is away from the back surface of the first fastening member (123) when the locking device (310) is located in the unlocked position.

20. A cooking utensil, characterized in that: include: Claypot(210); a cover (110), the cover (110) being arranged to be openable and closable relative to the pot body (210); when the cover (110) covers the pot body (210), a cooking space is formed between the cover (110) and the pot body (210); a cover opening and closing mechanism, wherein the cover opening and closing mechanism is capable of placing the cover (110) in a closed position and an open position; A steam generating device (120), the steam generating device (120) being arranged on the cover (110), the steam generating device (120) comprising: 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 communicable with the cooking space to introduce the steam into the cooking space; a steam cover plate (122), the steam cover plate (122) being pivotally connected to the cover body (110) and capable of opening and closing relative to the steam generating chamber (121) to open or close the steam generating chamber (121); A steam cover opening and closing mechanism, wherein the steam cover opening and closing mechanism can place the steam cover (122) in a closed position and an open position; A linkage mechanism is provided between 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 (122) is locked in the closed position when the cover body (110) is opened.

21. The cooking appliance according to claim 20, wherein The steam cover opening and closing mechanism comprises a first latch (127) arranged on the steam cover (122) and a second latch (128) arranged on the cover body (110), wherein the first latch can cooperate with the second latch to place the steam cover (122) in the closed position, wherein the linkage mechanism can act on the first latch and / or the second latch to lock the steam cover (122) in the closed position.

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