Upper cover and cooking utensil

Abstract

The utility model provides an upper cover and a cooking utensil, the upper cover is used for being installed on a pot body in an opening and closing mode, the pot body is provided with a pot buckle tongue, the upper cover comprises a cover body, a handle assembly and a buckle assembly, and the handle assembly is movably connected with the cover body and is configured to vertically move within a set stroke relative to the cover body; the buckle assembly comprises a cover buckle tongue, and the cover buckle tongue is movably connected to the cover body, is used for being buckled with the pot buckle tongue and is in driving connection with the handle assembly; when the handle assembly moves upwards relative to the cover body, the cover buckling tongue can be driven to move in the direction away from the pot buckling tongue. According to the technical scheme, the upper cover can be opened in the mode that the handle assembly is directly lifted upwards, the cover opening and closing operation steps of the cooking utensil are greatly simplified, and use convenience is improved. For people who do not use the cooking utensil frequently or use the cooking utensil for the first time, the learning and exploration process is simplified, and the cover opening and closing operation of the upper cover of the cooking utensil is easier to operate.

Description

Technical Field

[0001] The present application relates to the technical field of cooking appliances, and particularly to a top cover and a cooking appliance using the same. Background Art

[0002] At present, there are various types of cooking appliances, including rice cookers, pressure cookers, electric stew pots, etc. Taking the pressure cooker as an example, it has been extremely widely used in family life. Whether it is a pressure cooker used with an open fire or an electric heating pressure cooker, the convenience and operability of its use are of great concern to the majority of users. In particular, the operation methods of opening and closing the lid of the pressure cooker directly affect the convenience of product use and are also issues that attract much attention from product providers when improving their products.

[0003] A pressure cooker includes a top cover and a pot body, and the top cover is covered on the pot body. The existing structures for opening and closing the lid of the pressure cooker are diverse, but all more or less have problems of inconvenient operation or complex operation. For example: the technical solution of opening the lid by rotating the top cover has problems such as not being able to open if the rotation angle is not in place, and the operation of opening and closing the lid is not simple enough. Utility Model Content

[0004] The embodiments of the present application provide a top cover and a cooking appliance, aiming to improve the problem that the operation of opening and closing the lid of the cooking appliance in the related art is not simple enough.

[0005] In a first aspect, the embodiments of the present application provide a top cover, which is used to be openably and closably installed on a pot body. The pot body has a pot buckle tongue. The top cover includes a cover body, a handle assembly, and a buckle assembly. The handle assembly is movably connected to the cover body and is configured to be vertically movable relative to the cover body within a set stroke. The buckle assembly includes a cover buckle tongue, which is movably connected to the cover body and is used to engage with the pot buckle tongue and is drivingly connected to the handle assembly. When the handle assembly moves upward relative to the cover body, it can drive the cover buckle tongue to move away from the pot buckle tongue.

[0006] In some of these embodiments, the cover body includes a face cover and an inner cover. The inner cover is fixed inside the face cover. The face cover is provided with a mounting hole, and the cover buckle tongue is rotatably connected to the inner cover. The handle assembly includes a handle and a driving structure. The driving structure is drivingly connected to the cover buckle tongue, and the driving structure is movably arranged between the face cover and the inner cover. The handle passes through the mounting hole and is fixedly connected to the driving structure.

[0007] In some of these embodiments, the cover body further includes a pot lid. The inner cover is disposed around the outer periphery of the pot lid and is fixedly connected to the pot lid. A receiving space is provided on the inner cover, and the cover buckle tongue is installed in the receiving space.

[0008] In some of these embodiments, in the vertical direction, the orthographic projection of the accommodation space on the cover body is located outside the orthographic projection of the pot lid on the cover body.

[0009] In some of these embodiments, the cover buckle tongue is pivotally connected to the inner cover. The driving structure includes a driving frame and a driving block. The driving frame is movably arranged between the front cover and the inner cover and is fixedly connected to the handle; the driving block is fixedly connected to the driving frame and is slidably abutted against the cover buckle tongue. The driving block can be driven by the driving frame to abut against the cover buckle tongue, so that the cover buckle tongue rotates in a direction away from the pot buckle tongue.

[0010] In some of these embodiments, the driving frame and the driving block are separately arranged and detachably connected; or, the driving frame and the driving block are of an integral structure.

[0011] In some of these embodiments, the buckle assembly further includes an elastic member. One end of the elastic member is connected to the inner cover, and the other end is connected to the cover buckle tongue. The elastic member is used to make the cover buckle tongue have a tendency to rotate in a direction close to the pot buckle tongue.

[0012] In some of these embodiments, the cover buckle tongue includes a main body portion, a pushing portion, and a hook portion. The main body portion is provided with a pivot shaft rotatably connected to the inner cover. The elastic member is supported between the main body portion and the inner cover; the pushing portion is connected to the upper end of the main body portion and forms a pushing surface; and the hook portion is connected to the lower end of the main body portion and is used for buckling with the pot buckle tongue. Among them, at least a part of the driving block is located below the pushing surface, so that when the driving block rises, the driving block is in sliding contact with the pushing surface.

[0013] In some of these embodiments, the driving block includes a base portion and a protruding portion connected to the base portion. The base portion is fixedly connected to the driving link. The protruding portion extends toward one side of the base portion and is in sliding contact with the pushing surface; and / or the pushing surface is an inclined surface.

[0014] In some of these embodiments, the cover buckle tongue further includes a positioning portion. The positioning portion is connected to the main body portion. The elastic member is a spring and is limited on the positioning portion.

[0015] In some of these embodiments, the lid buckle tongue includes a main body portion, a pushing portion, and a hook portion. The main body portion is provided with a pivot shaft rotatably connected to the inner lid; the pushing portion is connected to the upper end of the main body portion and forms a pushing surface, at least part of the pushing surface is located above the driving block, so that when the driving block rises, the pushing surface slides into contact with the driving block; the hook portion is connected to the other end of the main body portion and is used for buckling with the pot buckle tongue;

[0016] Wherein, the weight of the hook portion is greater than the weight of the pushing portion; or, a magnetic structure is disposed between one of the pushing portion and the hook portion and the inner lid, and the magnetic structure is used to provide a magnetic force to drive the lid buckle tongue to have a tendency to rotate in a direction close to the pot buckle tongue.

[0017] In some of these embodiments, the lid buckle tongue is slidably connected to the inner lid, and the lid buckle tongue is driven by the handle assembly to reciprocate in a direction close to or away from the pot buckle tongue, and buckle or unfasten with the pot buckle tongue.

[0018] In some of these embodiments, the inner lid is provided with a translation slideway, a partial structure of the lid buckle tongue is slidably matched with the translation slideway, the driving structure includes a driving frame and a driving block, the driving frame is movably arranged between the face cover and the inner lid and is fixedly connected to the handle; the driving block is fixedly connected to the driving frame, and the driving block is in sliding contact with the lid buckle tongue to guide the lid buckle tongue to slide in a direction away from the driving block; wherein, the buckle assembly further includes an elastic body, the elastic body is installed in the translation slideway and is connected to the lid buckle tongue, and the elastic body is used to make the lid buckle tongue have a tendency to slide in a direction close to the driving block.

[0019] In some of these embodiments, the lid buckle tongue has a first transmission rack, the driving structure includes a driving frame, a driving block, and a driving gear, the driving frame is movably arranged between the face cover and the inner lid and is fixedly connected to the handle; the driving block is fixedly connected to the driving frame, and the driving block has a second transmission rack; the driving gear is rotatably arranged on the inner lid and is meshed with both the first transmission rack and the second transmission rack, and the driving block can drive the driving gear to rotate under the drive of the driving frame, so that the lid buckle tongue translates in a direction away from the pot buckle tongue.

[0020] In some of these embodiments, a reset member is further included, one end of the reset member is connected to one of the driving structure and the handle, and the other end is connected to one of the face cover and the inner lid.

[0021] In some of these embodiments, a guiding portion is further provided on the driving structure, and a guiding portion is provided on at least one of the face cover and the inner cover. The guiding portion is in sliding fit with the guiding portion to limit the vertical movement of the driving structure between the face cover and the inner cover.

[0022] In some of these embodiments, a guiding portion is further provided on the driving structure, and a guiding portion is provided on at least one of the face cover and the inner cover. The guiding portion is in sliding fit with the guiding portion to limit the vertical movement of the driving structure between the face cover and the inner cover.

[0023] In some of these embodiments, at least two sets of snap components are provided and are all drivingly connected to the handle component. The at least two sets of snap components are arranged at intervals along the circumferential direction of the cover body.

[0024] In a second aspect, an embodiment of the present application provides a cooking appliance, including a pot body and an upper cover as described in any one of the above. A pot snap tongue is provided on the pot body, and the pot snap tongue is in snap-fit with the cover snap tongue.

[0025] In some of these embodiments, the pot body includes an outer pot and an inner pot installed in the outer pot. The pot snap tongue is provided on the end surface of the outer pot facing the upper cover, and the pot snap tongue is arranged opposite to the cover snap tongue.

[0026] In some of these embodiments, the cover snap tongue has a first guiding inclined surface; the pot snap tongue has a second guiding inclined surface, and the cover snap tongue and the pot snap tongue are in sliding contact through the first guiding inclined surface and the second guiding inclined surface.

[0027] In some of these embodiments, the pot body includes an outer pot and an inner pot installed in the outer pot. A positioning hole is provided on one of the outer pot and the cover body, and a positioning convex portion is provided on the other. The positioning convex portion is in plug-in fit with the positioning hole to limit the circumferential rotation of the upper cover relative to the outer pot.

[0028] The upper cover and the cooking appliance provided by the embodiments of the present application can achieve the buckling of the upper cover by directly pressing down the handle component and the opening of the upper cover by directly lifting the handle component, which greatly simplifies the opening and closing operation steps of the cooking appliance and improves the use convenience.

[0029] During the process of lifting the handle component, since the handle component is in an upward lifting state, the cover snap tongue maintains a state away from the pot snap tongue, which can reduce the difficulty of alignment when the upper cover and the pot body are closed. The user only needs to align the upper cover with the pot body and then lower the handle component. The downward movement of the handle component drives the snap-fit of the cover snap tongue and the pot snap tongue, thereby completing the closing of the cover.

[0030] For those who rarely use or are using a cooking appliance for the first time, the operation of opening and closing the upper cover of the cooking appliance is easier to master, simplifying the learning and exploration process. Moreover, the driving connection between the handle assembly and the buckle assembly ensures the correct closing of the pot lid, reducing the safety risks caused by the incorrect closing of the pot lid. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0032] Figure 1 FIG. is an exploded structural schematic diagram of a cooking appliance provided in an embodiment of the present application;

[0033] Figure 2 is Figure 1 another exploded structural schematic diagram of the cooking appliance in;

[0034] Figure 3 is Figure 2 an enlarged view of part A in;

[0035] Figure 4 FIG. is an assembly schematic diagram of a handle assembly provided in an embodiment of the present application;

[0036] Figure 5 is Figure 4 an enlarged view of part B in;

[0037] Figure 6 is Figure 1 a cross-sectional view of the upper cover of the cooking appliance when being pressed down in;

[0038] Figure 7 is Figure 6 an enlarged view of part C in;

[0039] Figure 8 is Figure 1 a cross-sectional view of the state where the lid buckle tongue and the pot buckle tongue of the cooking appliance in are buckled;

[0040] Figure 9 is Figure 8 an enlarged view of part D in;

[0041] Figure 10 FIG. is a cross-sectional view of the upper cover of the cooking appliance when being lifted provided in an embodiment of the present application;

[0042] Figure 11 is Figure 10 an enlarged view of part E in;

[0043] Figure 12 A cross-sectional view of the disengaged state of the lid buckle tongue and the pot buckle tongue provided by an embodiment of the present application;

[0044] Figure 13 For Figure 12 An enlarged view of the position F in

[0045] Figure 14 A partial cross-sectional view of the upper lid when pressed down in a cooking appliance provided by another embodiment of the present application;

[0046] Figure 15 A partial cross-sectional view of the upper lid when pressed down in a cooking appliance provided by yet another embodiment of the present application.

[0047] Explanation of reference numerals:

[0048] 1, Cooking appliance;

[0049] 10, Upper lid; 11, Lid body; 111, Face lid; 111a, Mounting hole; 1111, Guide portion; 112, Inner lid; 112a, Accommodation space; 112b, Limiting groove; 112c, Shaft hole; 1121, Positioning convex portion; 1122, Translation slideway; 113, Pot lid; 114, Sealing ring; 12, Handle assembly; 121, Handle; 122, Driving structure; 1221, Driving frame; 12211, Guide portion; 1222, Driving block; 1222a, Second transmission rack; 12221, Base portion; 12222, Protruding portion; 1223, Driving gear; 13, Buckle assembly; 131, Lid buckle tongue; 1311, Main body portion; 13111, Pivot; 1312, Pushing portion; 13121, Thrust surface; 1313, Hook portion; 13131, First guiding inclined surface; 13132, First fastening surface; 1314, Positioning portion; 1315, First transmission rack; 132, Elastic member; 133, Elastic body; 14, Reset member;

[0050] 20, Pot body; 21, Outer pot; 211, Pot buckle tongue; 2111, Hook-shaped portion; 21111, Second guiding inclined surface; 21112, Second fastening surface; 212, Positioning hole; 22, Inner pot. Detailed implementation manners

[0051] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0052] Currently, with the development of technology and the improvement of people's living standards, more and more cooking appliances have emerged in the kitchen to meet different cooking needs and preferences. These appliances not only improve cooking efficiency but also enrich the taste and nutrition of food.

[0053] There are a wide variety of cooking appliances, including rice cookers, pressure cookers, electric stew pots, etc. Taking the pressure cooker as an example, the pressure cooker uses a sealed method to utilize steam pressure to speed up the cooking process. The working principle of the pressure cooker is to seal the air inside the pot so that the steam cannot escape, thereby generating a pressure higher than the atmospheric pressure inside the pot. This increased pressure can raise the boiling point of water, allowing food to be cooked at a higher temperature, thus shortening the cooking time and maintaining the nutritional components and flavor of the food at the same time.

[0054] For both pressure cookers used with an open flame and those with electric heating, the convenience and operability of their use are of great concern to the majority of users. Especially the operation methods of opening and closing the lid of the pressure cooker directly affect the convenience of product use. The main components of the pressure cooker include the pot body and the upper lid that can be opened and closed and installed on the pot body. The upper lid and the pot body are equipped with various opening and closing structures to meet different usage requirements and safety standards, mainly divided into the drop lid type, the screw-on type, and the clamp type.

[0055] In the related technology of the screw-on type, when opening or closing the lid, the user aligns the lid with the pot body and then rotates it by a certain angle until the edge of the upper lid completely fits and locks with the edge of the pot body. This design is not ideal for those who do not often use or are using the cooking appliance for the first time. Moreover, if the upper lid cannot be properly closed and the stressed parts of the product do not fully engage, the pressure-bearing strength will be affected, thereby affecting the safety of the product.

[0056] Based on this, the embodiments of the present application provide an upper lid, aiming to improve the problem that the opening and closing of the lid of the cooking appliance in the related technology are not simple enough.

[0057] The present application proposes an upper lid 10, and the upper lid 10 is used to be opened and closed and installed on the pot body 20. In the embodiments of the present application, the cooking appliance may include one of a pressure cooker, a rice cooker, an electric stew pot, a soybean milk machine, and a juice extractor. The specific type of the cooking appliance in this embodiment is not limited. For the convenience of elaborating the following content, the cooking appliance in the following embodiments is a pressure cooker, and the advantages of the cooking appliance of the present application being convenient for opening and closing the lid are introduced in detail.

[0058] Please refer to Figures 1 to 3, in the embodiment of the present application, the pot body 20 has a pot buckle tongue 211, and the upper cover 10 includes a cover body 11, a handle assembly 12 and a buckle assembly 13. Specifically, the handle assembly 12 is movably connected to the cover body 11 and is configured to be vertically movable relative to the cover body 11 within a set stroke; the buckle assembly 13 includes a cover buckle tongue 131, and the cover buckle tongue 131 is movably connected to the cover body 11 and is used for buckling with the pot buckle tongue 211 and is drivingly connected to the handle assembly 12; wherein, when the handle assembly 12 moves upward relative to the cover body 11, it can drive the cover buckle tongue 131 to move away from the pot buckle tongue 211 to unfasten.

[0059] In some of these embodiments, the cover buckle tongue 131 is pivotally connected to the cover body 11, that is, the cover buckle tongue 131 can rotate along the radial direction of the cover body 11 away from or towards the center of the cover body 11. That is, the pivot center line on the cover buckle tongue 131 can extend horizontally. In this way, during the rotation of the cover buckle tongue 131, both the upper end and the lower end move in the direction away from or towards the center of the cover body 11. The pivotal connection allows the cover buckle tongue 131 to freely rotate relative to the cover body 11 within a certain angle, which provides greater flexibility and makes it easier for the cover buckle tongue 131 to align and buckle with the pot buckle tongue 211. Among them, the pot buckle tongue 211 and the cover buckle tongue 131 are arranged in alignment and are adapted to each other, and can be buckled with each other to achieve a buckling fit or can be separated to achieve unfastening.

[0060] In some of these embodiments, the cover buckle tongue 131 is slidably connected to the cover body 11, and the cover buckle tongue 131 is driven by the handle assembly 12 to reciprocally translate along the direction close to or away from the pot buckle tongue 211 and buckle or unfasten with the pot buckle tongue 211. Compared with rotational or pivotal connections, the sliding connection reduces the friction between mechanical components, thereby reducing wear and extending the service life of the product.

[0061] When the handle assembly 12 moves upward, due to the movable connection design between the handle assembly 12 and the cover body 11, it allows the handle assembly 12 to move vertically relative to the cover body 1 within a preset stroke. The handle assembly 12 drives the cover buckle tongue 131 to rotate or move away from the pot buckle tongue 211, realizing the unfastening of the cover buckle tongue 131 and the pot buckle tongue 211, making the process of opening the cover smoother.

[0062] When the handle assembly 12 moves downward, the lid buckle 131 and the pot buckle 211 are in sliding contact, and the lid buckle 131 is squeezed by the pot buckle 211 and rotates in the direction away from the pot buckle 211, allowing the lid buckle 131 to continue sliding. After the upper end of the lid buckle 131 slides over the lower end of the pot buckle 211, the pot buckle 211 no longer abuts the lid buckle 131. Due to the heavier weight of the lower end of the lid buckle 131, the lid buckle 131 rotates toward the heavier end when there is no external force, maintaining a vertical downward state, and finally achieving the buckling of the lid buckle 131 and the pot buckle 211. Moreover, the cover buckle tongue 131 can automatically return to a preset vertical position after the cover is opened, so as to be ready for closing the cover 10 next time, thereby reducing the need for manual operation.

[0063] Alternatively, at least part of the material of the cover buckle tongue 131 is magnetic material, and a magnetic part is provided on the cover body 11, and the cover buckle tongue 131 can be driven to rotate through the magnetic attraction of the magnetic part. Alternatively, magnetic parts are provided between the cover buckle tongue 131 and the cover body 11, for example, both are magnet blocks, and the mutual attraction or mutual repulsion of the two magnet blocks can realize the cover buckle tongue 131 having a tendency to rotate. Specifically, a magnetic structure can be formed between the lid latch 131 and the lid body 11. The magnetic force provided by the magnetic structure drives the lid latch 131 to have a tendency to rotate about the pivot. Utilizing this tendency, after the upper lid 10 is fastened onto the pot body 20, the lid latch 131 can approach the pot latch 211, and the two latches can be locked together. Specifically, when the handle assembly 12 moves downward, the lid latch 131 and the pot latch 211 slide into contact due to the downward pressure applied by the user. After reaching a critical downward pressure point, the lid latch 131 rotates toward the lid body 11 under the magnetic attraction of the lid body 11, achieving the locking effect. After the lid is opened, the lid latch 131 is also driven by the magnetic force of the lid body 11, causing it to move closer to the lid body, preparing for the next closing. The upward movement of the handle assembly 12 overcomes the magnetic force, achieving the release of the lid latch 131 and the pot latch 211.

[0064] Therefore, the upper cover 10 and the pot body 20 of this embodiment can achieve the buckling of the upper cover 10 by directly pressing down the handle assembly 12, and the opening of the upper cover 10 by directly lifting the handle assembly 12, greatly simplifying the opening and closing operation steps of the cooking appliance 1 and improving the usability. Moreover, during the process of lifting the handle assembly 12, since the handle assembly 12 is in the lifted state, the lid buckle tongue 131 maintains a state away from the pot buckle tongue 211, which can reduce the difficulty of alignment when the upper cover 10 and the pot body 20 are closed. The user only needs to align the upper cover 10 with the pot body 20 and then lower the handle assembly 12. The downward movement of the handle assembly 12 drives the engagement of the lid buckle tongue 131 and the pot buckle tongue 211, thus completing the closing of the lid. For those who do not often use or are using the cooking appliance 1 for the first time, the learning cost is reduced, and the opening and closing operations of the upper cover 10 of the cooking appliance 1 are easier to master.

[0065] Taking a pressure cooker as an example, the pot body 20 usually includes an outer pot 21 and an inner pot 22. The inner pot 22 is used to directly hold food, is detachably installed in the outer pot 21, which is convenient for users to clean and replace, and can also prevent users from directly touching the heated surface of the inner pot 22, reducing the risk of scalding; the outer pot 21 can serve as a heat preservation layer to reduce heat loss, enabling the food in the inner pot 22 to be heated more quickly and evenly. The upper cover 10 is usually provided with a weight and an exhaust valve core. The exhaust valve core is mainly used to control the release of the pressure inside the pot. When the pressure inside the pot reaches a certain level, the exhaust valve core will open to allow steam to escape to prevent excessive pressure from causing danger. The weight usually cooperates with the exhaust valve core as a safety device. When the pressure inside the pot is too high and the exhaust valve core may not be able to release the pressure in time or completely, the weight will be lifted by the steam pressure as a second line of defense to forcibly release the pressure and prevent the pot body 20 from bursting.

[0066] Specifically, to achieve a tight connection between the lid body 11 and the pot body 20 to form a sealed limited volume space, so as to firmly seal the steam in the inner pot 22, ensuring that the pressure inside the pot body 20 remains at a relatively high level during the heating operation or at the end of cooking. The pot buckle tongue 211 adapted to the lid buckle tongue 131 is specifically arranged on the end face of the outer pot 21 facing the pot lid 113, and the pot buckle tongue 211 and the lid buckle tongue 131 are arranged in alignment to ensure that the lid buckle tongue 131 and the pot buckle tongue 211 can be accurately docked when the lid is closed.

[0067] In some of these embodiments, the cover body 11 includes a face cover 111, an inner cover 112, a pot lid 113, and a sealing ring 114 disposed between the inner cover 112 and the pot lid 113. The face cover 111 is installed on the outermost part, playing roles such as installing components, protection, and aesthetics. Among them, the face cover 111 can be composed of parts of at least two different materials such as plastic, glass, and metal. In this way, while having high structural strength, it can also have better appearance modeling, gloss, and other characteristics, which can enhance the aesthetics of the entire cooking appliance 1.

[0068] The inner cover 112 is disposed around the outer peripheral side of the pot lid 113. In one structural form, the inner cover 112 is annular, and the pot lid 113 is fixed in the inner cover 112. The inner cover 112 provides fixation and support for the pot lid 113. The pot lid 113 is used in cooperation with the sealing ring 114 to form a sealed space with the cooking cavity of the inner pot 22. Among them, the pot lid 113 can be made of stainless steel. The above-mentioned weight and exhaust valve core are installed on the pot lid 113 and the face cover 111. It can be understood that in other embodiments, the pot lid 113 can also be set to be annular and used to cooperate with the inner cover 112 to fix the sealing ring 114, or the pot lid 113 can fix the sealing ring 114 alone. The pot lid 113 is buckled on the mouth of the inner pot 22, and the closure of the entire mouth of the inner pot 22 is achieved by the inner cover 112. The following content will be further expanded with the embodiment where the inner cover 112 is annular.

[0069] Among them, an accommodation space 112a is provided on the inner cover 112. The inner cover 112 is disposed around the outer peripheral side of the pot lid 113, that is, the accommodation space 112a is located outside the pot lid 113. The cover buckle tongue 131 is installed in the accommodation space 112a without interfering with the pot lid 113. Hiding the cover buckle tongue 131 in the accommodation space 112a can reduce the risk of it being accidentally impacted or damaged. Since the face cover 111 covers the inner cover 112, that is, the accommodation space 112a is hidden inside the face cover 111, the appearance of the upper cover 10 is made more tidy.

[0070] In the vertical direction, the orthographic projection of the accommodation space 112a on the cover body 11 is located outside the orthographic projection of the pot lid 113 on the cover body 11. During the cooking process, the pot lid 113 may become very hot due to the internal pressure and heat of the pot body 20. By setting the accommodation space 112a outside the pot lid 113, heat can be effectively isolated, reducing the direct transfer of heat to the cover buckle tongue 131. This helps to maintain the performance and reliability of the cover buckle tongue 131 in a high-temperature environment and avoid affecting the normal operation of the cover buckle tongue 131 due to the heat deformation of the pot lid 113.

[0071] Specifically, the inner lid 112 includes an outer ring portion, an inner ring portion, and support ribs connecting the outer ring portion and the inner ring portion. A pot lid 113 is fixed inside the inner ring portion by bolts. The support ribs extend inward along the inner peripheral wall of the outer ring portion and are circumferentially spaced apart to provide stable support for the pot lid 113. Among them, an accommodation space 112a is provided between the inner ring portion and the outer ring portion, and the lid catch tongue 131 is accommodated in the accommodation space 112a.

[0072] Furthermore, an installation space is formed between the face lid 111, the inner lid 112, and the pot lid 113. The handle assembly 12 includes a handle 121 and a driving structure 122. The handle 121 provides a gripping point and a pressing point, facilitating the user to lift and press down the upper lid 10. The driving structure 122 is drivingly connected to the lid catch tongue 131 and is movably arranged between the face lid 111 and the inner lid 112, that is, the driving structure 122 moves vertically within the installation space. Arranging the driving structure 122 within the installation space can make more effective use of the space inside the lid body 11, making the overall design more compact. The driving structure 122 can be hidden within the face lid 111, reducing damage caused by collisions or scratches during daily use and making the overall cooking appliance 1 more tidy and beautiful.

[0073] An installation hole 111a is formed on the face lid 111. The handle 121 passes through the installation hole 111a and is fixedly connected to the driving structure 122, enhancing the structural stability of the entire handle assembly 12 and reducing looseness or shaking during use. The fixed connection between the handle 121 and the driving structure 122 can ensure the accuracy of operation. The user can accurately drive the vertical movement of the driving structure 122 within the installation space by lifting the handle 121 to achieve the rotation of the lid catch tongue 131 relative to the pot catch tongue 211.

[0074] It should be noted here that in the above-mentioned embodiments, the driving structure 122 is arranged in the installation space formed between the face cover 111, the inner cover 112 and the pot cover 113, and the handle 121 is arranged through the installation hole 111a, realizing a hidden installation, which has the advantages of being more compact, more beautiful and more reliable in structure. In other embodiments, the handle assembly 12 is movably connected to the cover body 11, and the handle assembly 12 can move within a set stroke on the cover body 11. It can also be an installation form in which most of the handle assembly 12 is exposed. Specifically, a guide groove extending in the up and down direction can be formed on the outer surface of the cover body 11, for example, on the outer surface of the face cover 111, and the driving structure 122 is slidably embedded in the guide groove. In this way, during the process of the driving structure 122 sliding up and down along the guide groove, the cover buckle tongue 131 can be triggered. Such a setting form has a large operating space during disassembly, installation and maintenance, and the maintainability is relatively high. From the perspectives of beauty and compactness, the following content will further expand on the hidden installation in which the driving structure 122 is arranged in the installation space formed between the face cover 111, the inner cover 112 and the pot cover 113.

[0075] As Figure 4 , Figure 5 and Figure 6 shown, at least one of the face cover 111 and the inner cover 112 is provided with a guiding portion 1111, and a guiding portion 12211 is further provided on the driving structure 122. The guiding portion 12211 and the guiding portion 1111 are in sliding fit to limit the vertical movement of the driving structure 122 between the face cover 111 and the inner cover 112. The sliding fit between the guiding portion 1111 and the guiding portion 12211 ensures that the driving structure 122 moves more smoothly when moving vertically between the face cover 111 and the inner cover 112, preventing position deviation.

[0076] Exemplarily, the guiding portion 12211 is specifically a guiding hole, that is, a plurality of guiding holes are formed on the driving structure 122, and the guiding portion 1111 is a guiding column; that is, a plurality of guiding columns are arranged on the face cover 111 facing the driving structure 122, and the plurality of guiding columns are arranged in one-to-one correspondence with the plurality of guiding holes, and the guiding columns are inserted into the guiding holes to ensure that the driving structure 122 can move vertically along a predetermined path smoothly.

[0077] Alternatively, the guiding portion 12211 is specifically a guiding convex block, that is, a guiding convex block is provided on the driving structure 122, and the guiding portion 1111 is a guiding chute, that is, a guiding chute adapted to the guiding convex block is provided on the inner cover 112, and the guiding convex block is slidably connected in the guiding chute. The guiding chute provides stable guidance for the movement of the guiding convex block, reducing the swing or deviation of the driving structure in operation.

[0078] In some of these embodiments, to enhance the buckling effect between the upper cover 10 and the pot body 20, at least two sets of buckle components 13 are provided and are all drivingly connected to the handle component 12. This can disperse the force and reduce the pressure borne by only a single buckle component 13, thereby reducing wear and extending the service life of the buckle component 13. The at least two sets of buckle components 13 are arranged at intervals along the circumference of the cover body 11. That is, the buckle components 13 are arranged at a certain interval distance, but this interval is not necessarily uniform and will be adjusted according to the design and functional requirements of the pot body 20.

[0079] Furthermore, the at least two sets of buckle components 13 are evenly arranged along the circumference of the cover body 11. The buckle components 13 are arranged at the same spacing along the entire circumference of the cover body 11, forming a continuous and balanced force distribution. This setting method emphasizes achieving uniform distribution of force on the entire cover body 11 to avoid local stress concentration.

[0080] In some of these embodiments, the driving structure 122 includes a driving frame 1221 and a driving block 1222. The driving frame 1221 is movably mounted between the front cover 111 and the inner cover 112 and is fixedly connected to the handle 121. That is, when the user pulls up the handle 121, the handle 121 can drive the driving frame 1221 to move vertically within the installation space. The front cover 111 and the inner cover 112 can limit the vertical movement range of the driving frame 1221, and thus limit the movement range of the driving block 1222. The driving block 1222 is fixedly connected to the driving frame 1221 and the driving block 1222 can slidably abut against the cover buckle tongue 131, which can reduce the wear that may occur during the repeated use of the driving block 1222 and the cover buckle tongue 131 for a long time. The driving block 1222 can, under the drive of the driving frame 1221, push up against the cover buckle tongue 131 to make the cover buckle tongue 131 rotate in a direction away from the pot buckle tongue 211.

[0081] In some of these embodiments, the inner cover 112 is provided with a translation slideway 1122 (such as Figure 14 ) and a part of the cover buckle tongue 131 is slidably inserted into the translation slideway 1122. The translation slideway 1122 provides a clear and fixed movement trajectory for the cover buckle tongue 131, ensuring that the cover buckle tongue 131 moves smoothly along a predetermined direction during the buckling and unbuckling processes. The driving block 1222 can also be in sliding contact with the cover buckle tongue 131 to guide the cover buckle tongue 131 to slide in a direction away from the driving block 1222. The buckle component 13 further includes an elastic body 133. The elastic body 133 is installed in the translation slideway 1122 and is connected to the cover buckle tongue 13 l. The elastic body 133 is used to make the cover buckle tongue 131 have a tendency to slide in a direction close to the driving block 1222. The presence of the elastic body 133 enables the cover buckle tongue 131 to automatically return to the correct position after the user releases the handle 121, reducing the need for manual adjustment and improving the convenience of use.

[0082] In some of these embodiments, the lid buckle tongue 131 has a first transmission rack 1315 (such as Figure 15 ), the drive block 1222 has a second transmission rack 1222a; the drive structure 122 further includes a drive gear 1223, which is rotatably arranged on the inner lid 112 and is meshed with both the first transmission rack 1315 and the second transmission rack 1222a. When the user lifts the handle 121, the drive block 1222 can move upward under the drive of the drive frame 1221, and the second transmission rack 1222a also moves upward, driving the drive gear 1223 to rotate around the first direction, and then transmitting to the first transmission rack 1315, so that the lid buckle tongue 131 translates in a direction away from the pot buckle tongue 211. The gear meshing provides precise power transmission, ensuring the consistency and accuracy of the translation of the lid buckle tongue 131, and reducing the buckling problem caused by sliding jamming.

[0083] When the user lowers the handle 121 and no longer applies an upward force, the drive frame 1221 and the drive block 1222 naturally fall under the influence of their own weight. The second transmission rack 1222a of the drive block 1222 moves downward, driving the drive gear 1223 to rotate around the second direction, and then transmitting to the first transmission rack 1315, so that the lid buckle tongue 131 translates in a direction close to the pot buckle tongue 211, realizing the automatic reset of the lid buckle tongue 131 and improving the convenience of operation. Here, the first direction and the second direction are opposite.

[0084] It can be understood that the drive frame 1221 and the drive block 1222 are separately arranged and detachably connected. The separate design allows the user or maintenance personnel to replace the damaged parts separately without replacing the entire component. For example, bolt fixation, plug-in connection, snap connection are adopted; or, the drive link and the drive block 1222 are of an integral structure. The integral design usually provides stronger structural stability because there is no interface between the components, reducing potential failure points.

[0085] Exemplarily, two snap assemblies 13 are symmetrically arranged about the center of the cover body 11. Therefore, the drive frame 1221 is in the form of an elongated drive link passing through the center of the cover body 11, and the drive blocks 1222 are respectively connected to the two ends of the link to drive each snap assembly 13. Furthermore, the drive link is provided with a guide portion 12211 along its length. The handle 121 is fixedly connected to the middle position of the drive link by bolts. The cover 111 is also provided with a mounting seat, which has a mounting hole 111a therein. The mounting hole 111a is connected to the mounting space. At least a portion of the handle 121 is inserted into the mounting hole 111a and can be displaced axially along the mounting hole 111a. A portion of the handle 121 is exposed on the side of the mounting hole 111a away from the mounting space, making it convenient for the user to grasp the side to lift the upper cover 10. When the handle 121 moves upward, it drives the drive link to move vertically within the mounting space, ensuring high efficiency of power transmission. The two ends of the driving connecting rod are respectively fixed with driving blocks 1222 by bolts. The two driving blocks 1222 can be set in a one-to-one correspondence with the two cover buckle tongues 131 and driven connected. The design of the driving connecting rod can accurately control the two driving blocks 1222 to ensure that the two cover buckle tongues 131 can be accurately disengaged from the two pot buckle tongues 211 respectively.

[0086] It is understandable that the drive frame 1221 can also be a three-arm connecting rod, a cross connecting rod, etc., and a drive block 1222 is provided on its end. The number of cover buckle tongues 131 and pot buckle tongues 211 is set according to the number of drive blocks 1222, which will not be repeated here.

[0087] The mounting seat includes a first step portion and a second step portion connected to each other, the outer diameter of the first step portion is larger than the outer diameter of the second step portion, and the mounting hole 111a passes through the first step portion and the second step portion, wherein an annular groove is provided around the mounting hole 111a on the inner wall of the first step portion facing away from the second step portion, and the annular groove is connected to the mounting space, one end of the reset member 14 is engaged with the annular groove, and the other end is abutted against the driving connecting rod. The provision of the annular groove can more accurately locate the position of the reset member 14, ensure the accuracy of the reset member 14 during installation, and limit the horizontal movement of the reset member 14, thereby preventing it from offsetting during operation and maintaining the stability of the structure.

[0088] like Figure 5 and Figure 6 As shown, in order to ensure that the driving structure 122 can reliably return to its original position after the upper cover 10 is closed with the pot body 20, and prepare for the next opening of the cover, the handle assembly 12 is also provided with a reset member 14, one end of the reset member 14 is connected to the driving mechanism and one of the handles 121, and the other end is connected to one of the surface cover 111 and the inner cover 112. The driving structure 122 can be correctly reset after each use, and the user does not need to perform additional reset operations, thereby improving the convenience of use.

[0089] Exemplarily, the reset member 14 can be a compression spring. One end of the compression spring is connected to the driving structure 122, and the other end is connected to the face cover 111. When the handle 121 is lifted, the driving structure 122 squeezes the compression spring, and the compression spring is in a compressed state. At this time, the compression spring is used to make the driving structure 122 tend to move downward, so that the driving structure 122 returns to its initial position. The user does not need to manually reset the driving structure 122 and can quickly perform the next operation, improving the usage efficiency.

[0090] Alternatively, the reset member 14 can be a tension spring. One end of the tension spring is connected to the driving structure 122, and the other end is connected to the pot lid 113. When the handle 121 is lifted, the driving structure 122 stretches the tension spring, and the tension spring is in a stretched state. At this time, the tension spring is used to make the driving structure 122 tend to move upward, so that the driving structure 122 returns to its initial position. After each use, the driving structure 122 can reliably return to the same initial position, ensuring the consistency and predictability of the operation.

[0091] In a feasible setting, the reset member 14 is a spring. The spring is sleeved on the handle 121, and one end is connected to the middle of the driving structure 122, and the other end is connected to the face cover 111. Being arranged in the middle can timely reset the driving structure 122 and prevent the driving structure 122 from being deformed during long-term use.

[0092] The reset member 14 also has damping characteristics, which can provide buffering for the movement of the driving structure 122 in the installation space and prevent the driving structure 122 from colliding with other internal structures during movement.

[0093] Please refer to again Figure 1 、 Figure 2 and Figure 4 . In order to limit the circumferential rotation of the upper cover 10 after being covered with the pot body 20, one of the cover body 11 and the pot body 20 is provided with a positioning hole 212, and the other is provided with a positioning convex portion 1121. The positioning convex portion 1121 and the positioning hole 212 are inserted and matched to limit the circumferential rotation of the upper cover 10 relative to the outer pot 21. The settings of the positioning convex portion 1121 and the positioning hole 212 can also assist in providing an intuitive feedback on the buckling situation of the pot buckle tongue 211 and the cover buckle tongue 131. When the positioning convex portion 1121 and the positioning hole 212 are not matched, there is still a gap between the upper cover 10 and the pot body 20, that is, the pot buckle tongue 211 and the cover buckle tongue 131 have not been buckled yet. When the positioning convex portion 1121 is correctly inserted into the positioning hole 212, it can be confirmed that the upper cover 10 has been correctly covered.

[0094] Exemplarily, the positioning protrusions are provided on the end surface of the outer pot 21 facing the pot body 20, the positioning holes 212 are provided on the end surface of the outer pot 21 facing the cover body 11, and both the positioning convex portions 1121 and the positioning holes 212 are provided with two, and both the cover buckle tongues 131 and the pot buckle tongues 211 are provided with two. The two pot buckle tongues 211 and the two positioning holes 212 are alternately arranged at intervals along the circumference of the outer pot 21; the two cover buckle tongues 131 and the two positioning protrusions are alternately arranged at intervals along the circumference of the cover body 11.

[0095] In some embodiments, such as Figure 6 , Figure 7 , Figure 8 and Figure 9 shown, the cover buckle tongue 131 includes a main body portion 1311, a pushing portion 1312 and a hook portion 1313. The main body portion 1311 is provided with a pivot 13111 rotatably connected to the inner cover 112. An axis hole 112c is formed on the inner wall of the accommodating space 112a, and the pivot 13111 is inserted into the axis hole 112c, providing a firm connection point for the stable rotation of the cover buckle tongue 131 within the accommodating space 112a. The pushing portion 1312 is connected to the upper end of the main body portion 1311 and forms a pushing surface 13121. At least a part of the driving block 1222 is located below the pushing surface 13121, so that when the driving block 1222 rises, the driving block 1222 is in sliding contact with the pushing surface 13121, ensuring that when the driving block 1222 rises, it can stably contact the pushing surface 13121, providing a necessary contact surface for the unlocking mechanism.

[0096] Specifically, the pushing surface 13121 is an inclined surface, which is inclined away from the main body portion 1311 and away from the hook portion 1313. When the user operates the lifting handle 121, the force required to be applied is smaller and the operation is more relaxed. It should be noted that the pushing surface can also be a smooth arc surface or a wavy arc surface, and the present application does not limit this.

[0097] The hook part 1313 is connected to the lower end of the main body part 1311. The hook part 1313 is bent and extended along the direction towards the pot buckle tongue 211. The end of the pot buckle tongue 211 close to the lid buckle tongue 131 is also bent and extended with a hook-shaped part 2111. Through the cooperation of the hook part 1313 and the hook-shaped part 2111, a clamping position is formed to firmly clamp the lid buckle tongue 131 and the pot buckle tongue 211 together. Specifically, the hook part 1313 has a first guiding inclined surface 13131 and a first buckling surface 13132, and the hook-shaped part 2111 has a second guiding inclined surface 21111 and a second buckling surface 21112. In the buckled state, the first buckling surface 13132 is parallel to the second buckling surface 21112, so that the upper lid 10 is stressed evenly, and the buckling between the upper lid 10 and the pot body 20 is more stable. The first guiding inclined surface 13131 and the second guiding inclined surface 21111 are in sliding contact to achieve buckling connection. The inclined surface design reduces the alignment time and force required during buckling. The user only needs to simply press down the upper lid 10, and the stable buckling of the lid buckle tongue 131 and the pot buckle tongue 211 can be achieved through the guidance of the inclined surface, improving the overall buckling efficiency.

[0098] In this embodiment, the buckle assembly 13 further includes an elastic member 132. One end of the elastic member 132 is connected to the lid body 11, and the other end is connected to the lid buckle tongue 131. The elastic member 132 is used to make the lid buckle tongue 131 tend to rotate towards the direction close to the pot buckle tongue 211. When the handle assembly 12 moves downward, after the lid buckle tongue slides over the pot buckle tongue, the pot buckle tongue 211 no longer abuts against the lid buckle tongue 131, and the pot buckle tongue 211 rotates towards the direction close to the pot buckle tongue 211 under the action of the elastic member 132, and the lid buckle tongue 131 and the pot buckle tongue 211 are buckled together, finally achieving the covering of the upper lid 10 and the pot body 20.

[0099] Specifically, the elastic member 132 is supported between the main body part 1311 and the inner lid 112, providing an additional support point for the lid buckle tongue 131 in the rotating state, and being able to achieve elastic reset after unlocking.

[0100] In some of these embodiments, the lid buckle tongue 131 further includes a positioning part 1314. The positioning part 1314 is connected to the main body part 1311. The elastic member 132 is a return spring and is limited on the positioning part 1314. One end of the return spring is supported on the inner lid 112, and the other end is limited on the positioning part 1314. The setting of the positioning part 1314 ensures the accurate position of the connection between the return spring and the lid buckle tongue 131, provides a stable fixing point, and prevents the return spring from shifting during use.

[0101] Furthermore, a limiting groove 112b is provided on the side of the inner cover 112 facing the cover buckle tongue 131. One end of the return spring is installed in the limiting groove 112b, and the other end is sleeved on the positioning portion 1314, which simplifies the installation of the return spring, makes the installation of the return spring more convenient, and ensures that the return spring can play its role in the correct position.

[0102] In other embodiments, the weight of the hook portion 1313 can be set to be greater than the weight of the push portion 1312. Due to the greater weight of the hook portion 1313, the lid latch 131 can automatically return to its vertically downward position after the external force is released. The user only needs to apply force once to pull up or push down the handle 121, and then rely on the lid latch 131's counterweight design to return it to its original position, simplifying the user's lid opening and closing operation. Moreover, by adjusting the lid latch 131's own counterweight, the number of additional components required to achieve the same function can be reduced, simplifying product design.

[0103] In some other embodiments, a magnetic structure is disposed between one of the push portion 1312 and the hook portion 1313 and the inner lid 112. The magnetic structure provides a magnetic force to drive the lid latch 131 to rotate toward the pot latch 211. The magnetic structure automatically guides the lid latch 131 to align with the pot latch 211, simplifying the closing process and improving operational convenience. The magnetic structure also reduces the number of additional mechanical components required for automatic closing, simplifying product design.

[0104] In some of these embodiments, Figure 10 、 Figure 11 、 Figure 12 and Figure 13 As shown, the driving block 1222 includes a base portion 12221 and a protrusion 12222 connected to the base portion 12221. The base portion 12221 is fixedly connected to the driving connecting rod. The protrusion 12222 extends toward one side of the base portion 12221 and is in sliding contact with the push surface 13121, reducing the friction and wear between the protrusion 12222 and the pushing portion 1312, thereby improving the durability of the driving block 1222 and the cover buckle tongue 131.

[0105] Specifically, a fixing hole is opened on the base portion 12221 toward the driving frame 1221, and the base portion 12221 and the driving frame 1221 are fixed by bolts. The protrusion 12222 is wedge-shaped, and a top abutting surface is formed on the protrusion 12222. The top abutting surface is an inclined surface, which is inclined in the direction close to the cover buckle tongue 131 and away from the base portion 12221, which can gradually increase the thrust on the cover buckle tongue 131, thereby providing smoother and more controllable force when pulling up to disengage, preventing excessive pressure on the cover buckle tongue 131 when buckled, thereby improving safety in use.

[0106] In the description of the present application, it should be understood that if terms such as "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0107] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0108] In the description of the present application, unless otherwise clearly specified and limited, terms such as "mounted", "connected", "connected to", "fixed" and the like should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0109] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation.

[0110] The above content is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A top cover, characterized in that: The upper cover is used to be installed on the pot body in an openable and closable manner. The pot body has a pot buckle tongue. The upper cover includes: Cover body; a handle assembly movably connected to the cover body and configured to move vertically within a set stroke relative to the cover body; A buckle assembly, comprising a cover buckle tongue, the cover buckle tongue being movably connected to the cover body and being used to buckle with the pot buckle tongue and being drivingly connected to the handle assembly; When the handle assembly moves upward relative to the cover body, it can drive the cover buckle tongue to move in a direction away from the pot buckle tongue.

2. The upper cover according to claim 1, characterized in that: The cover body includes a front cover and an inner cover, the inner cover is fixed in the front cover, the front cover is provided with a mounting hole, and the cover buckle tongue is rotatably connected to the inner cover; The handle assembly includes a handle and a driving structure, the driving structure is drivingly connected to the cover buckle tongue, and the driving structure is movably arranged between the surface cover and the inner cover, and the handle is passed through the mounting hole and fixedly connected to the driving structure.

3. The upper cover according to claim 2, characterized in that: The cover body also includes a pot cover. The inner cover ring is arranged on the outer peripheral side of the pot cover and is fixedly connected to the pot cover. An accommodating space is provided on the inner cover, and the cover buckle tongue is installed in the accommodating space.

4. The upper cover according to claim 3, characterized in that: In the vertical direction, the orthographic projection of the accommodating space on the cover body is located outside the orthographic projection of the pot cover on the cover body.

5. The upper cover according to claim 2 or 3, characterized in that: The cover buckle tongue is pivotally connected to the inner cover, and the driving structure includes: A drive frame is movably mounted between the surface cover and the inner cover and fixedly connected to the handle; The driving block is fixedly connected to the driving frame and can be slidably abutted against the cover buckle tongue. Under the drive of the driving frame, the driving block can abut against the cover buckle tongue to make the cover buckle tongue rotate in a direction away from the pot buckle tongue.

6. The upper cover according to claim 5, characterized in that: The driving frame and the driving block are separately provided and detachably connected; or, the driving frame and the driving block are an integrated structure.

7. The upper cover according to claim 5, characterized in that: The buckle assembly further includes: An elastic member, one end of which is connected to the inner cover, and the other end of which is connected to the cover buckle tongue, wherein the elastic member is used to make the cover buckle tongue have a tendency to rotate toward the direction close to the pot buckle tongue.

8. The upper cover according to claim 7, characterized in that: The cover buckle tongue includes: a main body portion provided with a pivot shaft rotatably connected to the inner cover, the elastic member being supported between the main body portion and the inner cover; a pushing portion connected to the upper end of the main body and forming a pushing surface; and A hook portion, connected to the lower end of the main body portion, for engaging with the pot buckle tongue; The driving block is at least partially located below the pushing surface, so that when the driving block rises, the driving block is in sliding contact with the pushing surface.

9. The upper cover according to claim 8, characterized in that: The driving block includes a base portion and a protrusion connected to the base portion, the base portion is fixedly connected to the driving frame, the protrusion extends toward one side of the base portion and is in sliding contact with the pushing surface; and / or The pushing surface is an inclined surface.

10. The upper cover according to claim 8, characterized in that: The cover buckle tongue further includes a positioning portion, which is connected to the main body portion. The elastic member is a spring and is limited on the positioning portion.

11. The upper cover according to claim 5, characterized in that: The cover buckle tongue includes: The main body is provided with a pivot shaft rotatably connected to the inner cover; a pushing portion connected to the upper end of the main body and forming a pushing surface, wherein the pushing surface is at least partially located above the driving block so that the pushing surface and the driving block are in sliding contact when the driving block rises; and A hook portion, connected to the other end of the main body portion, for engaging with the pot buckle tongue; wherein the weight of the hook portion is greater than the weight of the pushing portion; Alternatively, a magnetic structure is arranged between the inner cover and one of the pushing portion and the hook portion, and the magnetic structure is used to provide a magnetic force to drive the lid buckle tongue to rotate in a direction close to the pot buckle tongue.

12. The upper cover according to claim 2, characterized in that: The lid buckle tongue is slidably connected to the inner cover. The lid buckle tongue is driven by the handle assembly to move back and forth in a direction close to or away from the pot buckle tongue, and is buckled with or unlocked from the pot buckle tongue.

13. The upper cover according to claim 12, characterized in that: The inner cover is provided with a translation slide, and a part of the structure of the cover buckle tongue is in sliding cooperation with the translation slide. The driving structure includes: A drive frame is movably mounted between the surface cover and the inner cover and fixedly connected to the handle; a driving block fixedly connected to the driving frame, wherein the driving block is in sliding contact with the cover buckle tongue to guide the cover buckle tongue to slide in a direction away from the driving block; The buckle assembly further includes an elastic body, which is installed in the translation slide and connected to the cover buckle tongue. The elastic body is used to make the cover buckle tongue have a tendency to slide toward the direction close to the driving block.

14. The upper cover according to claim 12, characterized in that: The cover buckle tongue has a first transmission rack, and the driving structure includes: A drive frame is movably mounted between the surface cover and the inner cover and fixedly connected to the handle; a driving block fixedly connected to the driving frame, the driving block having a second transmission rack; and The driving gear is rotatably arranged on the inner cover and is meshed with the first transmission rack and the second transmission rack. The driving block can drive the driving gear to rotate under the drive of the driving frame, so that the cover buckle tongue moves horizontally in a direction away from the pot buckle tongue.

15. The upper cover according to any one of claims 2, 3, 4, 6 to 14, characterized in that: Also includes: A reset member, one end of which is connected to one of the driving structure and the handle, and the other end of which is connected to one of the surface cover and the inner cover.

16. The upper cover according to any one of claims 2, 3, 4, 6 to 14, characterized in that: The driving structure is further provided with a guide portion, and at least one of the surface cover and the inner cover is provided with a guide portion, and the guide portion is slidably matched with the guide portion to limit the vertical movement of the driving structure between the surface cover and the inner cover.

17. The upper cover according to claim 1, characterized in that: The buckle assembly is provided in at least two groups and both are drivingly connected to the handle assembly. The at least two groups of buckle assemblies are spaced apart along the circumference of the cover body.

18. A cooking utensil, characterized in that: It comprises a pot body and an upper cover as claimed in any one of claims 1 to 17, wherein the pot body is provided with a pot buckle tongue, and the pot buckle tongue is buckled and matched with the cover buckle tongue.

19. The cooking appliance according to claim 18, wherein The pot body comprises an outer pot and an inner pot installed in the outer pot. The end surface of the outer pot facing the upper cover is provided with the pot buckle tongue, and the pot buckle tongue is arranged in alignment with the cover buckle tongue.

20. The cooking appliance according to claim 18, wherein The cover buckle tongue has a first guiding inclined surface; The pot buckle tongue has a second guiding inclined surface, and the lid buckle tongue and the pot buckle tongue are in sliding contact through the first guiding inclined surface and the second guiding inclined surface.

21. The cooking appliance according to claim 18, wherein The pot body includes an outer pot and an inner pot installed in the outer pot. One of the outer pot and the cover body is provided with a positioning hole, and the other one is provided with a positioning protrusion. The positioning protrusion is plugged into the positioning hole to limit the circumferential rotation of the upper cover relative to the outer pot.

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