Cooking device and its cover assembly

Abstract

The present invention discloses a cooking device and a lid assembly thereof. The lid assembly includes a lid, a knob base, at least two engaging members, and at least two first link rods. The lid is used to cover the open end of a pot body; at least two engaging members are provided on the outer periphery of the lid, and one end of each engaging member is pivotally connected to the lid; one end of each first link rod is connected to the knob base, and the other end of each first link rod is connected to a corresponding engaging member; when the knob base rotates under the action of a rotational force, the first link rod pulls the corresponding engaging member to rotate around the pivot axis of the engaging member and the lid, so that the engaging member locks and unlocks with the pot body. There is no need to align the lid assembly and the pot body. After the lid assembly is only covered on the pot body, turning the knob base can achieve opening and closing of the lid assembly and the pot body, which is convenient and fast.

Description

[0001] Divisional case information

[0002] This application is a divisional application based on the Chinese patent application filed on August 31, 2020, with the application number 202010898261.5 and the title "Cooking Device and Its Lid Assembly", and all its contents are incorporated herein by reference in their entirety. Technical Field

[0003] The present invention relates to the technical field of cooking utensils, and particularly relates to a cooking device and its lid assembly. Background Art

[0004] Pressure cookers heat the liquid in the pot body based on the physical phenomenon that the boiling point of a liquid increases under higher air pressure. After the liquid is converted into water vapor, it is retained in the pot to generate high pressure inside the pot, thereby increasing the boiling point of the liquid so that the liquid can reach a relatively high temperature without boiling, in order to speed up the cooking speed of stewed food.

[0005] Due to the existence of high pressure inside the pot, the fastening of the lid to the pot body plays a crucial role in preventing the explosion of high-pressure cookers. Currently, the cooperation between the lid and the pot body of mainstream products is achieved by the locking buckle on the lid and the pot teeth on the pot body being fastened to each other to bear the pressure, and the pressure-bearing effect is relatively good, but the operation is rather cumbersome: First, when closing the lid, the lid needs to be aligned with the pot body to avoid interference between the locking buckle and the pot teeth; after the lid is fastened, the locking buckle is rotated to make it coincide with the pot teeth. When opening the lid, the locking buckle is rotated to misalign the locking buckle and the pot teeth, and then the lid is lifted to complete the lid-opening operation. Summary of the Invention

[0006] The present invention provides a cooking device and its lid assembly to solve the technical problem of the cumbersome lid-opening and lid-closing processes of pressure cookers.

[0007] To solve the above technical problem, one technical solution adopted by the present invention is: to provide a lid assembly, including: a lid for covering the open end of the pot body; a knob base; at least two engaging members provided on the outer periphery of the lid, one end of each engaging member being pivotally connected to the lid; and at least two first link rods, one end of each first link rod being connected to the knob base, and the other end of each first link rod being connected to a corresponding one of the engaging members; wherein, when the knob base rotates under the action of a rotational force, the first link rod pulls the corresponding engaging member to rotate around the pivot axis of the engaging member and the lid, so that the engaging member is locked and unlocked with the pot body.

[0008] According to a specific embodiment of the present invention, the at least two first link rods are disposed between the knob seat and the cover body. At least two first driving guide grooves are provided on the knob seat. On one side of each first link rod facing the knob seat, a first connecting column extending along the axial direction of the cover body is provided. The first connecting column is inserted into a corresponding one of the first driving guide grooves and moves along the first driving guide groove as the knob seat rotates, thereby driving the movement of the first link rod.

[0009] According to a specific embodiment of the present invention, the cover body assembly includes a link rod positioning member. The link rod positioning member is connected to the rotation axis of the knob seat. At least two positioning grooves are provided on the link rod positioning member. Each first connecting column is disposed in a corresponding one of the positioning grooves to drive the first connecting column to rotate synchronously with the knob seat.

[0010] According to a specific embodiment of the present invention, the link rod positioning member includes a first positioning plate and a second positioning plate. The first positioning plate and the second positioning plate are arranged in parallel at intervals along the axial direction of the rotation axis of the knob seat. One end of the first link rod is clamped between the first positioning plate and the second positioning plate. The at least two positioning grooves are provided on the first positioning plate. The first connecting column protrudes from the first positioning plate and is inserted into a corresponding one of the first driving guide grooves.

[0011] According to a specific embodiment of the present invention, a second driving guide groove is provided on the knob seat. The cover body assembly further includes a second link rod and a float. A second connecting column is provided on the second link rod. The second connecting column is inserted into the second driving guide groove and moves along the second driving guide groove as the knob seat rotates. Thus, the knob seat drives the second link rod to move synchronously with the first link rod. A self-locking hole is provided on the second link rod, and the second link rod can move to overlap with the float when the engaging member is locked with the pot body. The float is suspended on the cover body and can rise into the self-locking hole when the engaging member is locked with the pot body and the pressure in the pot body is greater than or equal to a preset threshold, thereby locking the movement of the second link rod.

[0012] According to a specific embodiment of the present invention, a guiding groove communicating with the self-locking hole and extending along the radial direction of the cover body is provided on the second link rod. The float includes a first part and a second part. When the at least two engaging members are unlocked from the pot body, the first part can be disposed in the guiding groove and allows the second link rod to move along the radial direction of the cover body. When the engaging member is locked with the pot body and the pressure in the pot body is greater than or equal to a preset threshold, the second part can rise into the self-locking hole, thereby locking the movement of the second link rod along the radial direction of the cover body.

[0013] According to a specific embodiment of the present invention, the width of the guiding groove is smaller than the diameter of the self-locking hole. The first part and the second part are respectively columnar bodies, and the diameter of the first part is smaller than the width of the guiding groove, and the diameter of the second part is larger than the width of the guiding groove and smaller than the diameter of the self-locking hole.

[0014] According to a specific embodiment of the present invention, the first driving guiding groove is divided into an opening and closing section and a locking and holding section that are connected to each other, and the second driving guiding groove is divided into an interference and holding section and a self-locking section that are connected to each other; wherein, when the first connecting column moves along the opening and closing section, the second connecting column moves along the interference and holding section. The opening and closing section is configured such that the first connecting rod can pull the corresponding engaging member to unlock and lock with the pot body. The interference and holding section is configured such that the self-locking hole on the second connecting rod is offset from the float; when the first connecting column moves along the locking and holding section, the second connecting column moves along the self-locking section. The self-locking section is configured such that the second connecting rod can move to overlap the self-locking hole with the float, and the locking and holding section is configured such that the engaging member remains locked with the pot body.

[0015] According to a specific embodiment of the present invention, the distance between the locking and holding section and the rotation axis of the rotary handle seat remains the same. The distance between the opening and closing section and the rotation axis of the rotary handle seat is set to gradually increase in the direction away from the locking and holding section. The distance between the interference and holding section and the rotation axis of the rotary handle seat remains the same. The distance between the self-locking section and the rotation axis of the rotary handle seat is set to gradually decrease in the direction away from the interference and holding section.

[0016] According to a specific embodiment of the present invention, the cover assembly includes a face cover, the face cover covers the side of the cover body facing away from the pot body, and the rotary handle seat is rotatably connected to the face cover.

[0017] According to a specific embodiment of the present invention, a face cover guiding groove is provided on the side of the face cover facing the cover body. The face cover guiding groove is slidably connected to the second connecting rod for guiding the second connecting rod.

[0018] According to a specific embodiment of the present invention, two parallel and spaced-apart guiding plates are convexly provided on the side surface of the face cover facing the cover body. The two guiding plates enclose to form the face cover guiding groove. Hooks are respectively provided on the opposite side walls of the two guiding plates. The second connecting rod is accommodated in the face cover guiding groove, and the hooks abut against the surface of the second connecting rod facing away from the face cover to realize the axial limit of the second connecting rod along the cover body.

[0019] According to a specific embodiment of the present invention, a micro switch is provided on the surface cover, and the micro switch is electrically connected to the heating element provided in the pot body. One end of the second connecting rod is connected to the handle seat, and the other end of the second connecting rod is provided at the position of the micro switch. When the second connecting column moves in the self-locking section, the second connecting rod abuts against the micro switch, and the heating element does not heat up. When the second connecting column moves in the self-locking section, the second connecting rod does not contact the micro switch, and the heating element starts to heat up.

[0020] According to a specific embodiment of the present invention, the cover body includes a cover plate and an enclosure plate, the enclosure plate is connected to the periphery of the cover plate and is bent toward the same side of the cover plate to cooperate with the cover plate to form a cover cavity, the handle seat and the at least two first connecting rods are arranged on the side of the cover plate away from the cover cavity, and the at least two locking parts are arranged on the periphery of the enclosure plate.

[0021] According to a specific embodiment of the present invention, the locking member includes a first arc plate, a second arc plate and a third arc plate, the first arc plate and the third arc plate are arranged in parallel and spaced apart, the second arc plate is connected to the outer periphery of the first arc plate and the third arc plate to enclose and form a clamping groove, the enclosing plate is arranged in the clamping groove, and the third arc plate is extended in the covering cavity for locking with the periphery of the pot body.

[0022] According to a specific embodiment of the present invention, a first connecting portion is extended at one end of the first arc plate in the circumferential direction, a second connecting portion is provided in the middle of the first arc plate, the first connecting portion is pivotally connected to a side of the cover plate away from the covering cavity, the second connecting portion is pivotally connected to the first connecting rod, and the first connecting rod is used to push the engaging member to rotate around the pivot axis between the first connecting portion and the cover plate.

[0023] According to a specific embodiment of the present invention, the cover plate has a long axis and a short axis which are vertically arranged, the length of the long axis is greater than the length of the short axis, the number of the engaging parts is four, and the four engaging parts are symmetrically arranged between the end points of the long axis and the short axis with the long axis and the short axis as the symmetry axis.

[0024] According to a specific embodiment of the present invention, the handle seat is arranged on the side of the cover body away from the pot body, the handle seat includes a rotating disk and a handle, the at least two first connecting rods are connected to the rotating disk, the handle is arranged on the side of the rotating disk away from the cover body, and is connected to the rotating axis of the rotating disk for receiving the rotational force.

[0025] To solve the above technical problems, a technical solution adopted by the present invention is: to provide a cooking device, the cooking device includes a pot body and the cover body assembly as described above, and the cover body assembly is covered on the open end of the pot body.

[0026] The beneficial effect of the present invention is: different from the prior art, in the embodiment of the present invention, at least two engaging members are pivotally connected to the outer periphery of the cover body, and a first connecting rod connecting the engaging member and the rotary handle seat is provided. Thus, when the rotary handle seat is subjected to a rotational force and drives one end of the first connecting rod to move in a direction away from the center of the cover body, the first connecting rod will push the engaging member to rotate around the pivot axis of the engaging member and the cover body, so as to increase the distance between the engaging member and the cover body, and further unlock the cover body assembly and the pot body; when the rotary handle seat is subjected to a rotational force and drives one end of the first connecting rod to move in a direction close to the center of the cover body, the first connecting rod will pull the engaging member to rotate around the pivot axis of the engaging member and the cover body, so as to reduce the distance between the engaging member and the cover body, and further lock the cover body assembly and the pot body. In this way, there is no need to align the cover body assembly and the pot body. Only after the cover body assembly is covered on the pot body, turning the rotary handle seat can achieve opening and closing the cover of the cover body assembly and the pot body, which is convenient and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0028] Figure 1 is a schematic plan view of a cooking device in an embodiment of the present invention;

[0029] Figure 2 is Figure 1 a schematic cross-sectional view of the cover body assembly in ;

[0030] Figure 3 is Figure 2 a schematic perspective view of some components of the cover body assembly in ;

[0031] Figure 4 is Figure 3 a schematic perspective view of the engaging member in ;

[0032] Figure 5 is Figure 2 a schematic enlarged view of the partial structure in ;

[0033] Figure 6 is Figure 3 a schematic perspective view of the first connecting rod in ;

[0034] Figure 7 is Figure 2 a schematic plan view of the rotating disk in

[0035] Figure 8 is Figure 2 a schematic perspective view of some components of the cover assembly in

[0036] Figure 9 is Figure 8 a schematic enlarged partial view in

[0037] Figure 10 is Figure 8 a schematic perspective view of the second connecting rod in

[0038] Figure 11 is Figure 8 a schematic perspective view of the face cover and its schematic enlarged partial view in Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0040] The terms "first", "second", and "third" in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", and "third" may explicitly or implicitly include at least one of such features. All directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally further include steps or units not listed, or may optionally further include other steps or units inherent to these processes, methods, products, or devices.

[0041] References to "embodiments" in this specification mean that the particular features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the invention. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive of other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0042] Please refer to Figure 1 , Figure 1 which is a schematic plan view of a cooking device according to an embodiment of the present invention. The present invention provides a cooking device 100, which includes a pot body 10 and a lid assembly 20. The lid assembly 20 is disposed on the open end of the pot body 10 to seal a cavity disposed on the pot body 10.

[0043] Optionally, the cooking device 100 can be a pressure cooking kitchen appliance. For example, it can be a pressure cooker, a pressure cooker, etc. Alternatively, the cooking device 100 can also be an electric rice cooker, a rice cooker, a food processor, a juicer, etc. The embodiments of the present invention do not specifically limit the type of the cooking device 100.

[0044] Wherein, please continue to refer to Figure 2 and Figure 3 , Figure 2 which is Figure 1 a schematic cross-sectional view of the lid assembly in Figure 3 which is Figure 2 a schematic perspective view of some components of the lid assembly in

[0045] The embodiment of the present invention pivotally connects at least two engaging members 23 on the outer periphery of the cover body 21, and provides a first connecting rod 24 connecting the engaging member 23 and the handle seat 22, so that when the handle seat 22 is subjected to a rotational force and drives one end of the first connecting rod 24 to move in a direction away from the center of the cover body 21, the first connecting rod 24 will push the engaging member 23 to rotate around the pivot axis of the engaging member 23 and the cover body 21 to increase the distance between the engaging member 23 and the cover body 21, thereby achieving unlocking of the cover body assembly 20 and the pot body 10; when the handle seat 22 is subjected to a rotational force and drives one end of the first connecting rod 24 to move in a direction close to the center of the cover body 21, the first connecting rod 24 will pull the engaging member 23 to rotate around the pivot axis of the engaging member 23 and the cover body 21 to reduce the distance between the engaging member 23 and the cover body 21, thereby locking the cover body assembly 20 and the pot body 10. In this way, there is no need to align the cover assembly 20 and the pot body 10. The cover assembly 20 only needs to be placed on the pot body 10, and then the handle seat 22 can be turned to open and close the cover assembly 20 and the pot body 10, which is convenient and quick.

[0046] Among them, in this embodiment, if Figure 2 and Figure 3 As shown, the cover body 21 includes a cover plate 212 and an enclosure plate 214. The enclosure plate 214 is connected to the periphery of the cover plate 212 and is bent toward the same side of the cover plate 212 to cooperate with the cover plate 212 to form a cover cavity 216. The open end of the pot body 10 is accommodated in the cover cavity 216. The handle seat 22 and at least two first connecting rods 24 are arranged on the side of the cover plate 212 away from the cover cavity 216, so as to receive external forces and rotate under the action of external forces. At least two engaging members 23 are arranged on the periphery of the enclosure plate 214, so as to be engaged with the pot body 10 accommodated in the cover cavity 216.

[0047] Furthermore, the cover plate 212 has a long axis and a short axis which are arranged vertically, and the length of the long axis is greater than the length of the short axis. That is, the cover body 21 is arranged in an elliptical shape, and the pot body 10 matched with the cover body 21 is also arranged in an elliptical shape. By setting the elliptical pot body 10, it is convenient to process long strips of food, so as to improve the user experience.

[0048] Furthermore, if Figure 3 As shown, in this embodiment, there are four engaging members 23, and the four engaging members 23 are symmetrically arranged between the end points of the long axis and the short axis with the long axis and the short axis as the symmetry axis. By symmetrically arranging the engaging members 23 along the long axis and the short axis, the lengths of the first connecting rods 24 connected to the four engaging members 23 can be made substantially equal, thereby improving the consistency of the movement of the four first connecting rods 24 and improving the stability of opening the cover.

[0049] Optionally, the number of the engaging members 23 can also be two, and the two engaging members 23 are arranged at opposite ends of the cover body 21 along the radial direction of the cover body 21. For example, the two engaging members 23 can be arranged at opposite ends in the long axis direction of the elliptical cover body 21; alternatively, the two engaging members 23 can also be arranged at opposite ends in the short axis direction of the elliptical cover body 21. Arranging the two engaging members 23 along the short axis at opposite ends of the cover body 21 can shorten the length of the first connecting rod 24 connected to each engaging member 23, so as to improve the structural strength of the first connecting rod 24 and prevent the first connecting rod 24 from deforming.

[0050] Or, in other alternative embodiments, the number of the engaging members 23 can also be set to 6, 8, 10, etc., which can be specifically set flexibly according to the size and shape of the cover body assembly 20, and the embodiments of the present invention do not make specific limitations.

[0051] In another embodiment, the pot body 10 and the cover body 21 can also be set to shapes such as circular, square, etc., and the embodiments of the present invention do not make specific limitations on the shape of the cover body 21. When the cover body 21 is circularly arranged, at least two engaging members 23 can be evenly spaced on the outer periphery of the cover body 21.

[0052] As Figures 2 to 4 shown, Figure 4 it is Figure 3 a schematic three-dimensional structure diagram of the engaging member in

[0053] Specifically, the outer peripheral edge of the cover body 21 is arranged in the clamping groove 234, and the length of the third arc-shaped plate 233 extends beyond the inner side wall of the cover body 21 to extend into the cover cavity 216. When the first connecting rod 24 pulls the engaging member 23 to rotate towards the cover body 21, the third arc-shaped plate 233 gradually enters the cover cavity 216, so that the peripheral edge of the pot body 10 placed in the cover cavity 216 is clamped in the clamping groove 234, so as to buckle the cover body 21 on the pot body 10. When the first connecting rod 24 pushes the engaging member 23 to rotate away from the cover body 21, the third arc-shaped plate 233 gradually moves out of the cover cavity 216, and the peripheral edge of the pot body 10 disengages from the clamping groove 234 to release the locking between the cover body 21 and the pot body 10 to achieve unlocking.

[0054] Optionally, the shapes of the first arc-shaped plate 231 and the third arc-shaped plate 233 are adapted to the shape of the outer peripheral edge of the pot body 10 to facilitate the formation of a stable connection. Among them, the circumferential lengths of the first arc-shaped plate 231 and the third arc-shaped plate 233 can be set to be relatively long to increase the contact area between the engaging member 23 and the pot body 10, thereby enhancing the connection strength.

[0055] Furthermore, one end of the first arc-shaped plate 231 extends along the circumferential direction to be provided with a first connection portion 235, and the middle portion of the first arc-shaped plate 231 is provided with a second connection portion 236. The first connection portion 235 is pivotally connected to the side of the cover plate 212 facing away from the covering cavity 216, and the second connection portion 236 is pivotally connected to the first connecting rod 24. The first connecting rod 24 is used to push the engaging member 23 to rotate around the pivot axis of the first connection portion 235 and the cover plate 212.

[0056] Specifically, the first connection portion 235 is arranged at the end of the first arc-shaped plate 231 for pivotally connecting the engaging member 23 and the cover plate 212. By extending the first connection portion 235 from the first arc-shaped plate 231, it is possible to avoid interference between the second arc-shaped plate 232 and the cover body 21 when the engaging member 23 rotates relative to the cover body 21. The second connection portion 236 is arranged on the side of the first arc-shaped plate 231 facing away from the cover body 21 and is connected to the first connecting rod 24. By arranging the second connection portion 236 in the middle of the first arc-shaped plate 231, that is, in the middle of the engaging member 23, the distance between the pivot axis of the first connection portion 235 and the cover body 21 and the pivot axis of the second connection portion 236 and the first connecting rod 24 can be shortened, thereby shortening the size of the force arm of the engaging member 23 and enhancing the smoothness of the movement of the engaging member 23.

[0057] Please refer to Figure 3 and Figure 5 , Figure 5 is Figure 2 a partial enlarged structural schematic diagram in. The rotary handle base 22 is arranged on the side of the cover body 21 facing away from the pot body 10 to facilitate receiving a rotational force. Among them, the rotary handle base 22 includes a rotary disk 221 and a handle 223. At least two first connecting rods 24 are connected to the rotary disk 221. The handle 223 is arranged on the side of the rotary disk 221 facing away from the cover body 21 and is connected to the rotation axis of the rotary disk 221 for receiving a rotational force.

[0058] Among them, as Figure 5 shown, the handle 223 and the rotary disk 221 can be arranged as an integral structure. For example, when both the rotary disk 221 and the handle 223 are made of plastic materials, the rotary disk 221 and the handle 223 can be integrally injection molded. By arranging the rotary handle base 22 with an integral structure, the connection structure between the handle 223 and the rotary disk 221 can be simplified to improve the production efficiency of the cover body assembly 20, and the connection strength between the handle 223 and the rotary disk 221 can be enhanced.

[0059] Alternatively, the handle 223 and the rotary disk 221 can also be fixedly connected. For example, different materials can be used to manufacture the handle 223 and the rotary disk 221 respectively, and then the handle 223 and the rotary disk 221 can be connected by means of welding, riveting or screw connection, etc. The embodiments of the present invention do not specifically limit the connection manner between the handle 223 and the rotary disk 221.

[0060] Further, as Figures 5 to 7 shown, Figure 6 is Figure 3 a three-dimensional structural schematic diagram of the first connecting rod in Figure 7 and Figure 2 is a planar structural schematic diagram of the rotary disk in . In this embodiment, at least two first connecting rods 24 are provided between the rotary disk 221 and the cover body 21. At least two first driving guide grooves 225 are provided on the rotary disk 221. On one side of each first connecting rod 24 facing the rotary disk 221, a first connecting column 242 extending along the axial direction of the cover body 21 is provided. The first connecting column 242 is inserted into a corresponding first driving guide groove 225 and moves along the first driving guide groove 225 as the rotary disk 221 rotates, thereby driving the first connecting rod 24 to move. By providing the first driving guide groove 225 and the first connecting column 242 that are slidably matched with each other between the rotary disk 221 and the first connecting rod 24, the first connecting rod 24 can be driven to move by the acting force of the first driving guide groove 225 on the first connecting column 242. In this way, the connection structure between the first connecting rod 24 and the rotary hand seat 22 can be simplified, so that the structure of the cover body assembly 20 is more compact and the assembly is more convenient.

[0061] Wherein, the number of the first driving guide grooves 225 is equal to the number of the first connecting rods 24. The first connecting column 242 on each first connecting rod 24 is correspondingly inserted into a first driving guide groove 225 to avoid interference in the movement of different first connecting rods 24. In this embodiment, the number of the first driving guide grooves 225 is equal to the number of the first connecting rods 24, that is, four first driving guide grooves 225 are provided. The four first driving guide grooves 225 are evenly spaced along the rotation axis of the rotary hand seat 22 to improve the consistency of the movement of the four first connecting rods 24 and the stability of opening the cover.

[0062] Alternatively, in another embodiment, the rotating disk 221 can also be disposed between at least two first linkages 24 and the cover body 21. A first connecting post 242 extending along the axial direction of the cover body 21 is provided on one side of the first linkage 24 facing the rotating disk 221, and the first connecting post 242 is inserted into a corresponding first driving guide groove 225. That is, in this embodiment, the first connecting post 242 is inserted into the first driving guide groove 225 from top to bottom. In this way, not only can the height of the cover body assembly 20 in the axial direction be shortened, but also the first connecting post 242 can be naturally inserted into the first driving guide groove 225 under the action of gravity, preventing the first connecting post 242 from disengaging from the first driving guide groove 225.

[0063] Optionally, as Figure 6 shown, a reinforcing rib 244 is further extended and provided in the length direction of the first linkage 24 to enhance the strength of the first linkage 24 and prevent the deformation of the first linkage 24 from affecting the movement of the engaging member 23.

[0064] Among them, in one embodiment, the first linkage 24 can be made of metal or alloy material, and the reinforcing rib 244 can be formed by stamping. That is, the first linkage 24 is stamped to form a strip-shaped depression in the length direction of the first linkage 24, thereby enhancing the anti-bending performance of the first linkage 24.

[0065] Or, in another embodiment, the first linkage 24 can be made of plastic material, and the reinforcing rib 244 can be integrally injection-molded with the first linkage 24.

[0066] Further, as Figure 3 , Figure 5 , Figure 8 and Figure 9 shown, Figure 8 is Figure 2 a schematic three-dimensional structure diagram of some components of the cover body assembly in Figure 9 is Figure 8 a partially enlarged schematic structure diagram in . The cover body assembly 20 includes a linkage positioning member 25. The linkage positioning member 25 is connected to the rotating shaft of the rotary handle base 22. At least two positioning grooves 252 are provided on the linkage positioning member 25, and each first connecting post 242 is disposed in a corresponding positioning groove 252 to drive the first connecting post 242 to rotate synchronously with the rotary handle base 22.

[0067] Specifically, in this embodiment, the connecting rod positioning member 25 is connected to the side of the rotating disk 221 facing away from the handle 223. The positioning slots 252 equal in number to the first connecting rods 24 are provided on the connecting rod positioning member 25. The first connecting posts 242 on each first connecting rod 24 pass through the positioning slots 252 and are inserted into the first driving guide slots 225. In this way, when the rotating disk 221 and the connecting rod positioning member 25 rotate, the connecting rod positioning member 25 drives the first connecting rods 24 to move synchronously relative to the rotating disk 221 through the positioning slots 252 and the first connecting posts 242, so as to improve the movement consistency of the engaging members 23 connected to the first connecting rods 24, and further improve the smoothness of opening the cover.

[0068] Among them, the shape of the positioning slot 252 can be set according to the shape of the first driving guide slot 225, and the embodiment of the present invention does not make specific limitations.

[0069] Furthermore, in this embodiment, as Figure 3 、 Figure 5 and Figure 9 shown, the connecting rod positioning member 25 includes a first positioning plate 251 and a second positioning plate 253. The first positioning plate 251 and the second positioning plate 253 are arranged in parallel at intervals along the axial direction of the rotation axis of the rotating handle base 22. One end of the first connecting rod 24 is clamped between the first positioning plate 251 and the second positioning plate 253. At least two positioning slots 252 are provided on the first positioning plate 251, and the first connecting posts 242 protrude from the first positioning plate 251 and are inserted into corresponding first driving guide slots 225.

[0070] Specifically, the first positioning plate 251 is arranged between the second positioning plate 253 and the rotating disk 221. The second positioning plate 253 abuts against the side of the first connecting rod 24 facing away from the rotating disk 221 to limit the movement of the first connecting rod 24 along the axial direction of the rotating disk 221, so that the first connecting posts 242 can be stably held in the first driving guide slots 225 and prevent the first connecting posts 242 from disengaging from the first driving guide slots 225. The first positioning plate 251 is clamped between the other end of the first connecting rod 24 and the rotating disk 221 for positioning at least two first connecting posts 242 simultaneously, so that the first connecting rods 24 move synchronously.

[0071] Furthermore, as Figure 2 、 Figures 7 to 10 shown, Figure 10 is Figure 8Schematic diagram of the three-dimensional structure of the second connecting rod in the cover body 20. The second drive guide groove 227 is provided on the handle seat 22, that is, the second drive guide groove 227 is opened on the rotating disk 221. The cover body assembly 20 also includes a second connecting rod 26 and a float 27. The second connecting rod 26 is provided with a second connecting column 262, and the second connecting column 262 is inserted in the second drive guide groove 227, and moves along the second drive guide groove 227 with the rotation of the handle seat 22, and then the handle seat 22 drives the second connecting rod 26 and the first connecting rod 24 to move synchronously. The second connecting rod 26 is provided with a self-locking hole 264, and can move to overlap with the float 27 when the engaging member 23 is locked with the pot body 10. The float 27 is suspended on the cover body 21, and can rise to the self-locking hole 264 when the engaging member 23 is locked with the pot body 10 and the pressure in the pot body 10 is greater than or equal to the preset threshold, thereby locking the movement of the second connecting rod 26. By simultaneously providing the first driving guide groove 225 and the second driving guide groove 227 on the rotating disk 221, and matching the first connecting column 242 of the first connecting rod 24 with the first driving guide groove 225, and matching the second connecting column 262 of the second connecting rod 26 with the second driving guide groove 227, the synchronous movement of the first connecting rod 24 and the second connecting rod 26 can be achieved by rotating a rotary handle 22, so as to reduce the complexity of opening the cover assembly 20. In addition, by providing the self-locking hole 264 on the second connecting rod 26, the self-locking of the second connecting rod 26 can be achieved when the pressure in the pot body 10 is relatively high. At this time, the rotating disk 221 cannot be further rotated, so as to avoid the first connecting rod 24 from continuing to rotate and driving the engaging member 23 to unlock the cover body 21 and the pot body 10, thereby preventing a safety accident from occurring. In this way, the safety performance of the cooking device 100 can be improved.

[0072] Among them, the number of the second connecting rod 26 is one, the number of the float 27 is also one, and the float 27 is arranged corresponding to the second connecting rod 26. The second connecting rod 26 is provided with a second connecting column 262 extending along the axial direction of the cover body 21 on one side of the second connecting rod 26 facing the handle seat 22, and the second connecting column 262 is inserted into the second driving guide groove 227 to drive and connect the second connecting rod 26 with the rotating disk 221. In this way, the connection structure between the second connecting rod 26 and the handle seat 22 can be simplified, so that the structure of the cover assembly 20 is more compact and the assembly is more convenient.

[0073] In one embodiment, the float 27 may be a columnar body, the self-locking hole 264 may be a circular hole, and the diameter of the self-locking hole 264 is slightly larger than the diameter of the float 27 , so that the float 27 can pass through the self-locking hole 264 to limit the movement of the second connecting rod 26 .

[0074] Optionally, the self-locking hole 264 can also be in the shape of a square hole, a triangular hole, etc. The cross-section of the float 27 is adapted to the shape of the self-locking hole 264, and the size of the self-locking hole 264 is slightly larger than the size of the cross-section of the float 27, so that the float 27 can pass through the self-locking hole 264. The embodiments of the present invention do not specifically limit the shapes of the cross-sections of the self-locking hole 264 and the float 27. Among them, the size of the preset threshold can be flexibly set by adjusting the weight of the float 27, and the embodiments of the present invention do not specifically limit the size of the preset threshold.

[0075] In this embodiment, as Figure 2 , Figures 8 to 10 shown, the second link 26 is further provided with a guiding groove 266 that communicates with the self-locking hole 264 and extends in the radial direction of the cover body 21. The float 27 includes a first part 272 and a second part 274. When at least two engaging members 23 are unlocked from the pot body 10, the first part 272 can be disposed in the guiding groove 266 and allow the second link 26 to move in the radial direction of the cover body 21. When the engaging member 23 is locked with the pot body 10 and the pressure in the pot body 10 is greater than or equal to the preset threshold, the second part 274 can rise into the self-locking hole 264, thereby locking the movement of the second link 26 in the radial direction of the cover body 21.

[0076] Specifically, in this embodiment, the guiding groove 266 can be set as a kidney-shaped groove that communicates with the self-locking hole 264, and the kidney-shaped groove is connected to one side of the self-locking hole 264 along the moving direction of the second link 26. When the engaging member 23 is locked with the pot body 10, the self-locking hole 264 moves to overlap with the float 27, and the second part 274 of the float 27 can move into the self-locking hole 264 to lock the movement of the second link 26, preventing accidental opening of the lid. When the engaging member 23 is unlocked from the pot body 10, the first part 272 of the float 27 is inserted into the guiding groove 266 on the second link 26 and can slide relative to the guiding groove 266. By arranging the first part 272 of the float 27 to pass through the guiding groove 266, the float 27 can guide the movement of the second link 26, so that the second link 26 moves in the radial direction of the cover body 21, thereby improving the movement accuracy of the second link 26 and facilitating the alignment and cooperation between the second part 274 of the float 27 and the self-locking hole 264.

[0077] Among them, the connection direction of the kidney-shaped groove relative to the self-locking hole 264 can be flexibly set according to the shape of the second driving guiding groove 227. For example, when opening the lid by rotation, if the second driving guiding groove 227 drives the second link 26 to move towards the center of the cover body 21, the guiding groove 266 is connected to the side of the self-locking hole 264 away from the center of the cover body 21. If the second driving guiding groove 227 drives the second link 26 to move away from the center of the cover body 21, the guiding groove 266 is connected to the side of the self-locking hole 264 towards the center of the cover body 21.

[0078] Alternatively, in other embodiments, the guiding groove 266 may also be set as a strip-shaped groove, and the embodiment of the present application does not specifically limit the shape of the guiding groove 266.

[0079] Wherein, the width of the guiding groove 266 is smaller than the diameter of the self-locking hole 264. The first part 272 and the second part 274 are respectively columnar bodies, and the diameter of the first part 272 is smaller than the width of the guiding groove 266, and the diameter of the second part 274 is larger than the width of the guiding groove 266 and smaller than the diameter of the self-locking hole 264. Thus, when the first part 272 of the float 27 is inserted into the guiding groove 266, it is convenient for the second connecting rod 26 to move relative to the float 27 to open the lid. By setting the diameter of the second part 274 to be smaller than the diameter of the self-locking hole 264, the second part 274 can move into the self-locking hole 264 under the action of pressure. By setting the diameter of the second part 274 to be larger than the width of the guiding groove 266, after the second part 274 rises to the self-locking hole 264, the movement of the second connecting rod 26 can be locked to prevent the second part 274 from sliding relative to the second connecting rod 26 into the guiding groove 266.

[0080] Furthermore, as Figure 7 shown, the first driving guiding groove 225 is divided into an opening and closing section 222 and a locking and holding section 224 that are connected to each other, and the second driving guiding groove 227 is divided into an interference holding section 226 and a self-locking section 228 that are connected to each other. Wherein, when the first connecting column 242 moves along the opening and closing section 222, the second connecting column 262 moves along the interference holding section 226. The opening and closing section 222 is arranged such that the first connecting rod 24 can pull the corresponding engaging member 23 to unlock and lock with the pot body 10, and the interference holding section 226 is arranged such that the self-locking hole 264 on the second connecting rod 26 is kept staggered from the float 27; when the first connecting column 242 moves along the locking and holding section 224, the second connecting column 262 moves along the self-locking section 228. The self-locking section 228 is arranged such that the second connecting rod 26 can move to make the self-locking hole 264 overlap with the float 27, and the locking and holding section 224 is arranged such that the engaging member 23 is kept locked with the pot body 10. By correspondingly arranging the opening and closing section 222 and the interference holding section 226, and correspondingly arranging the locking and holding section 224 and the self-locking section 228, the pressure can only be built up in the pot body 10 when the lid body 21 and the pot body 10 are kept locked, and the lid can only be opened and closed when there is no pressure in the pot body 10, improving the safety performance of the cooking device 100.

[0081] Further, in this embodiment, the distance between the locking and holding section 224 and the rotation axis of the knob base 22 remains consistent, and the distance between the opening and closing section 222 and the rotation axis of the knob base 22 is set to gradually increase in the direction away from the locking and holding section 224. The interference holding section 226 and the rotation axis of the knob base 22 have a consistent distance, and the distance between the self-locking section 228 and the rotation axis of the knob base 22 is set to gradually decrease in the direction away from the interference holding section 226.

[0082] Specifically, during the process of rotating to open the lid, that is, when the rotating disk 221 rotates in the counterclockwise direction shown in Figure 7 When there is no pressure in the pot body 10, the float 27 moves downward under the action of gravity, and the first part 272 of the float 27 moves into the self-locking hole 264. The first connecting column 242 moves along the locking and holding section 224, and the second connecting column 262 moves along the self-locking section 228. Since the diameter of the first part 272 is smaller than the width of the guiding groove 266, when the rotating disk 221 rotates, the distance between the self-locking section 228 and the rotation axis of the knob base 22 gradually increases, and the second connecting rod 26 moves in the direction away from the center of the lid body 21. The distance between the locking and holding section 224 and the rotation axis of the knob base 22 remains consistent, and the first connecting rod 24 does not move, so the pot body 10 and the lid body 21 remain locked. Subsequently, the first connecting column 242 moves to the opening and closing section 222, and the second connecting column 262 moves to the interference holding section 226. When the rotating disk 221 rotates, the distance between the opening and closing section 222 and the rotation axis of the knob base 22 gradually increases, and the first connecting rod 24 moves in the direction away from the center of the lid body 21 to release the lock between the lid body 21 and the pot body 10; the distance between the interference holding section 226 and the rotation axis of the knob base 22 remains consistent, and the second connecting rod 26 does not move.

[0083] During the process of rotating to close the lid, that is, when the rotating disk 221 rotates in the clockwise direction shown in Figure 7 The first connecting column 242 moves along the opening and closing section 222, and the second connecting column 262 moves along the interference holding section 226. When the rotating disk 221 rotates, the distance between the opening and closing section 222 and the rotation axis of the knob base 22 gradually decreases, and the first connecting rod 24 moves in the direction closer to the center of the lid body 21 to lock the lid body 21 and the pot body 10. The distance between the interference holding section 226 and the rotation axis of the knob base 22 remains consistent, and the second connecting rod 26 does not move. Subsequently, the first connecting column 242 moves to the locking and holding section 224, and the second connecting column 262 moves to the self-locking section 228. When the rotating disk 221 rotates, the distance between the locking and holding section 224 and the rotation axis of the knob base 22 remains consistent, and the first connecting rod 24 does not move; the distance between the self-locking section 228 and the rotation axis of the knob base 22 gradually decreases, and the second connecting rod 26 moves in the direction closer to the center of the lid body 21, and the self-locking hole 264 gradually overlaps with the float 27, so that the float 27 can rise into the self-locking hole 264 under the action of pressure.

[0084] Further, as shown in Figure 2 , Figure 9 and Figure 11 , Figure 11 is Figure 8 a schematic three-dimensional structure diagram of the face cover in

[0085] and its partial enlarged structure diagram. The cover body assembly 20 includes a face cover 28, the face cover 28 is disposed on one side of the cover body 21 facing away from the pot body 10, and the knob base 22 is rotatably connected to the face cover 28.

[0086] Among them, the face cover 28 can be made of materials such as plastic, glass or ceramic. By disposing the face cover 28 on one side of the cover body 21 facing away from the pot body 10, at least two first link rods 24 can be disposed in the space between the face cover 28 and the cover body 21 to protect at least two first link rods 24 and make the appearance of the cooking device 100 more beautiful. An installation hole 282 is formed in the middle of the face cover 28, and the knob base 22 is rotatably installed in the installation hole 282 to facilitate driving the knob base 22 to rotate.

[0087] Further, a face cover guide groove 284 can be disposed on one side of the face cover 28 facing the cover body 21, and the face cover guide groove 284 is slidably connected to the second link rod 26 for guiding the second link rod 26. By providing the face cover guide groove 284 for guiding the second link rod 26, the movement accuracy of the second link rod 26 can be improved to facilitate the alignment and cooperation between the float 27 and the self-locking hole 264. Figure 8 and Figure 11 Among them, in this embodiment, as shown in

[0088] , two parallel and spaced guide plates 286 are convexly provided on one side surface of the face cover 28 facing the cover body 21, and the two guide plates 286 enclose to form the face cover guide groove 284. At least a part of the second link rod 26 is accommodated in the face cover guide groove 284 and can move relative to the face cover guide groove 284 to realize the guiding of the second link rod 26.

[0089] Alternatively, in another embodiment, the face cover guide groove 284 can be a slide rail provided on the face cover 28, and a slider that cooperates with the slide rail can be provided on the second link 26 to guide the second link 26. The face cover guide groove 284 can also be a limiting sleeve provided on the face cover 28, and the second link 26 is inserted into the limiting sleeve to guide the second link 26.

[0090] Furthermore, the cover assembly 20 can further include a micro switch 29, which is electrically connected to a heating element (not shown in the figure) provided in the pot body 10, so as to control whether the heating element heats through the micro switch 29, and prevent the cooking device 100 from being damaged due to heating without the cover being properly closed.

[0091] Among them, in one embodiment, as Figure 8 shown, the micro switch 29 can be provided on the face cover 28 and corresponding to the end of the second link 26 away from the rotary handle base 22. When the second connecting column 262 moves within the interference holding section 226, the second link 26 abuts against the micro switch 29, and the heating element does not heat. When the second connecting column 262 moves within the self-locking section 228, the second link 26 does not contact the micro switch 29, and the heating element starts to heat.

[0092] Specifically, when the first link 24 moves within the interference holding section 226, the first link 24 drives the engaging member 23 to open and close the cover. At this time, the second connecting column 262 moves within the interference holding section 226. Since the distance between the second connecting column 262 and the rotation axis of the rotary handle base 22 remains unchanged, the second link 26 does not rotate with the rotation of the rotary disk 221, and the second connecting column 262 continuously abuts against the micro switch 29, and the heating element electrically connected to the micro switch 29 does not heat. That is, during the process of opening and closing the cover, the heating element electrically connected to the micro switch 29 does not heat. When the first link 24 moves within the self-locking section 228, the engaging member 23 remains locked, and the second connecting column 262 moves within the self-locking section 228. Since the distance between the second connecting column 262 and the rotation axis of the rotary handle base 22 gradually decreases, the second link 26 moves toward the center of the cover body 21, and the end of the second link 26 away from the center of the cover body 21 is separated from the micro switch 29, and the heating element electrically connected to the micro switch 29 starts to heat. That is, when the engaging member 23 locks the cover body 21 and the pot body 10, the heating element electrically connected to the micro switch 29 heats. In this way, the cooking device 100 only starts to heat and work when the cover is closed in place, so as to protect the cooking device 100.

[0093] In summary, different from the prior art, in the embodiment of the present invention, at least two engaging members 23 are pivotally connected to the outer periphery of the cover body 21, and a first connecting rod 24 connecting the engaging member 23 and the knob base 22 is provided. Thus, when the knob base 22 is subjected to a rotational force and drives one end of the first connecting rod 24 to move in a direction away from the center of the cover body 21, the first connecting rod 24 will push the engaging member 23 to rotate around the pivot axis of the engaging member 23 and the cover body 21, so as to increase the distance between the engaging member 23 and the cover body 21, thereby unlocking the cover assembly 20 and the pot body 10; when the knob base 22 is subjected to a rotational force and drives one end of the first connecting rod 24 to move in a direction close to the center of the cover body 21, the first connecting rod 24 will pull the engaging member 23 to rotate around the pivot axis of the engaging member 23 and the cover body 21, so as to decrease the distance between the engaging member 23 and the cover body 21, thereby locking the cover assembly 20 and the pot body 10. In this way, it is not necessary to align the cover assembly 20 and the pot body 10. After the cover assembly 20 is only covered on the pot body 10, turning the knob base 22 can achieve opening and closing of the cover assembly 20 and the pot body 10, which is convenient and fast.

[0094] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present invention.

Claims

1. A cover assembly, characterized in that, Comprising: A cover body for covering the open end of a pot body; A knob base; At least two engaging members provided on the outer periphery of the cover body, with one end of each engaging member pivotally connected to the cover body; and At least two first link rods, with one end of each first link rod connected to the knob base and the other end of each first link rod connected to a corresponding one of the engaging members; Wherein, when the knob base rotates under the action of a rotational force, driving one end of the first link rod to move away from the center of the cover body, the first link rod pushes the corresponding engaging member to rotate around the pivot axis of the engaging member and the cover body, so as to increase the distance between the engaging member and the cover body, thereby unlocking the cover body assembly from the pot body; when the knob base is driven by the rotational force to drive one end of the first link rod to move towards the center of the cover body, the first link rod will pull the engaging member to rotate around the pivot axis of the engaging member and the cover body, so as to decrease the distance between the engaging member and the cover body, thereby locking the cover body assembly to the pot body.

2. The cover assembly according to claim 1, wherein, The at least two first link rods are provided between the knob base and the cover body. The knob base is provided with at least two first driving guide grooves. One side of each first link rod facing the knob base is provided with a first connecting post extending along the axial direction of the cover body. The first connecting post is inserted into a corresponding one of the first driving guide grooves and moves along the first driving guide groove as the knob base rotates, thereby driving the first link rod to move.

3. The cover assembly according to claim 2, wherein, The cover body assembly includes a link positioning member connected to the rotation axis of the knob base. The link positioning member is provided with at least two positioning grooves. Each first connecting post is disposed in a corresponding one of the positioning grooves to drive the first connecting post to rotate synchronously with the knob base.

4. The cover assembly according to claim 3, wherein The link positioning member includes a first positioning plate and a second positioning plate. The first positioning plate and the second positioning plate are arranged in parallel at intervals along the axial direction of the rotation axis of the knob base. One end of the first link rod is clamped between the first positioning plate and the second positioning plate. The at least two positioning grooves are provided on the first positioning plate. The first connecting post protrudes from the first positioning plate and is inserted into a corresponding one of the first driving guide grooves.

5. The cover assembly according to claim 2, characterized in that, The knob base is provided with a second driving guide groove. The cover body assembly further includes a second link rod and a float. The second link rod is provided with a second connecting post. The second connecting post is inserted into the second driving guide groove and moves along the second driving guide groove as the knob base rotates. Thus, the knob base drives the second link rod to move synchronously with the first link rod. The second link rod is provided with a self-locking hole and can move to overlap with the float when the engaging member is locked to the pot body. The float is suspended on the cover body and can rise into the self-locking hole when the engaging member is locked to the pot body and the pressure in the pot body is greater than or equal to a preset threshold value, thereby locking the movement of the second link rod.

6. The cover assembly according to claim 5, characterized in that, The second connecting rod is provided with a guiding groove communicating with the self-locking hole and extending along the radial direction of the cover body. The float includes a first part and a second part. When the at least two engaging members are unlocked from the pot body, the first part can be arranged in the guiding groove and allows the second connecting rod to move along the radial direction of the cover body. When the engaging members are locked with the pot body and the pressure in the pot body is greater than or equal to a preset threshold, the second part can rise into the self-locking hole, thereby locking the movement of the second connecting rod along the radial direction of the cover body.

7. The cover assembly according to claim 6, wherein The width of the guiding groove is smaller than the diameter of the self-locking hole. The first part and the second part are respectively columnar bodies, and the diameter of the first part is smaller than the width of the guiding groove, and the diameter of the second part is larger than the width of the guiding groove and smaller than the diameter of the self-locking hole.

8. The cover assembly according to claim 5, characterized in that, The first driving guiding groove is divided into an opening and closing section and a locking and holding section connected to each other. The second driving guiding groove is divided into an interference and holding section and a self-locking section connected to each other. Wherein, when the first connecting column moves along the opening and closing section, the second connecting column moves along the interference and holding section. The opening and closing section is arranged such that the first connecting rod can pull the corresponding engaging member to unlock and lock with the pot body. The interference and holding section is arranged such that the self-locking hole on the second connecting rod is kept staggered with the float. When the first connecting column moves along the locking and holding section, the second connecting column moves along the self-locking section. The self-locking section is arranged such that the second connecting rod can move to overlap the self-locking hole and the float. The locking and holding section is arranged such that the engaging member is kept locked with the pot body.

9. The lid assembly according to claim 8, wherein The distance between the locking and holding section and the rotation axis of the knob base remains the same. The distance between the opening and closing section and the rotation axis of the knob base is set to gradually increase in the direction away from the locking and holding section. The distance between the interference and holding section and the rotation axis of the knob base remains the same. The distance between the self-locking section and the rotation axis of the knob base is set to gradually decrease in the direction away from the interference and holding section.

10. The cover assembly according to claim 8, wherein The cover body assembly includes a face cover, the face cover covers the side of the cover body facing away from the pot body, and the knob base is rotatably connected to the face cover.

11. The cover assembly according to claim 10, wherein The side of the face cover facing the cover body is provided with a face cover guiding groove, and the face cover guiding groove is slidably connected to the second connecting rod for guiding the second connecting rod.

12. The cover assembly according to claim 11, wherein The side surface of the face cover facing the cover body protrudes with two parallel and spaced guiding plates. The two guiding plates enclose to form the face cover guiding groove. Hooks are respectively provided on the opposite side walls of the two guiding plates. The second connecting rod is accommodated in the face cover guiding groove, and the hooks abut against the surface of the second connecting rod facing away from the face cover to realize the axial limit of the second connecting rod along the cover body.

13. The cover assembly according to claim 10, characterized in that, A micro switch is provided on the surface cover, and the micro switch is electrically connected to the heating element provided in the pot body. One end of the second connecting rod is connected to the handle seat, and the other end of the second connecting rod is provided at the position of the micro switch. When the second connecting column moves in the self-locking section, the second connecting rod abuts against the micro switch, and the heating element does not heat up. When the second connecting column moves in the self-locking section, the second connecting rod does not contact the micro switch, and the heating element starts to heat up.

14. The cover assembly according to claim 1, wherein The cover body includes a cover plate and an enclosure plate, wherein the enclosure plate is connected to the periphery of the cover plate and is bent toward the same side of the cover plate to cooperate with the cover plate to form a cover cavity, the handle seat and the at least two first connecting rods are arranged on the side of the cover plate away from the cover cavity, and the at least two engaging parts are arranged on the periphery of the enclosure plate.

15. The cover assembly according to claim 14, characterized in that, The clamping member includes a first arc plate, a second arc plate and a third arc plate, the first arc plate and the third arc plate are arranged in parallel and spaced apart, the second arc plate is connected to the outer periphery of the first arc plate and the third arc plate to enclose and form a clamping groove, the enclosing plate is arranged in the clamping groove, and the third arc plate is extended in the covering cavity for clamping with the periphery of the pot body.

16. The cover assembly according to claim 15, wherein A first connecting portion is extended at one end of the first arc plate in the circumferential direction, a second connecting portion is provided in the middle of the first arc plate, the first connecting portion is pivotally connected to a side of the cover plate away from the covering cavity, the second connecting portion is pivotally connected to the first connecting rod, and the first connecting rod is used to push the engaging member to rotate around the pivot axis between the first connecting portion and the cover plate.

17. The cover assembly according to claim 14, wherein The cover plate has a long axis and a short axis which are arranged vertically, the length of the long axis is greater than the length of the short axis, the number of the engaging members is four, and the four engaging members are symmetrically arranged between the end points of the long axis and the short axis with the long axis and the short axis as the symmetry axis.

18. The cover assembly according to claim 1, wherein, The handle is arranged on the side of the cover body away from the pot body, and the handle includes a rotating disk and a handle. The at least two first connecting rods are connected to the rotating disk. The handle is arranged on the side of the rotating disk away from the cover body and connected to the rotating axis of the rotating disk for receiving the rotational force.

19. A cooking device, characterized in that, The cooking device comprises a pot body and a cover assembly as described in any one of claims 1 to 18, wherein the cover assembly is disposed on the open end of the pot body.

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