Cooking equipment

Abstract

The utility model provides cooking equipment which comprises an outer pot, a hot plate assembly and an elastic element, the hot plate assembly is located in the outer pot and comprises a heating plate, a pressure-bearing column and a guide column, the pressure-bearing column and the guide column are arranged on the side, facing the bottom wall of the outer pot, of the heating plate, and the pressure-bearing column abuts against the bottom wall of the outer pot; the elastic element is provided with a guide hole matched with the guide post in a limiting manner, and the elastic element is positioned on the guide post and is supported on the bottom wall of the outer pot. According to the embodiment, the pressure-bearing columns abutting against the bottom wall of the outer pot are arranged, so that the use number of elastic elements can be reduced, and the production cost is reduced while basic functions are kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cooking utensils, in particular to a cooking device. BACKGROUND

[0002] A cooking device is a kind of utensil used for processing food in a kitchen, including a gas stove, an induction cooker, an oven, etc. Among them, an electric pressure cooker integrates the functions of a pressure cooker and an electric rice cooker, and through sealing and heating, the air pressure in the pot is raised, and the boiling point is increased, thereby greatly shortening the cooking time. Not only can it quickly stew meat, beans and other difficult-to-cook food, but also can maintain the nutrition and taste of food.

[0003] The electric pressure cooker includes an outer pot, an inner pot, a pot cover, and a heating disc arranged between the outer pot and the inner pot. When the electric pressure cooker is used, the pressure of the electric pressure cooker needs to be adjusted. Therefore, an elastic element is arranged on the disc column of the heating disc assembly, and the inner pot abuts against the elastic element. In the related art, the elastic element is mostly fixed with the disc foot through a screw, and the assembly is relatively inconvenient. Moreover, the assembly process is relatively cumbersome due to the relatively large number of components for assembling the elastic element, thereby increasing the production cost. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application provide a cooking device, aiming to improve the problem of a large number of components of an electric pressure cooker and cumbersome assembly.

[0005] Embodiments of the present application provide a cooking device, comprising:

[0006] an outer pot;

[0007] a heating disc assembly located in the outer pot, the heating disc assembly comprising a heating disc and a pressure bearing column and a guide column arranged on one side of a bottom wall of the heating disc facing the outer pot, the pressure bearing column abutting against the bottom wall of the outer pot; and

[0008] an elastic element having a guide hole in limiting cooperation with the guide column, the elastic element being positioned on the guide column and supported on the bottom wall of the outer pot.

[0009] In some embodiments, the pressure bearing column and the guide column are both located on the same circumference with the center of the heating disc as the center.

[0010] In some embodiments, the number of the pressure bearing column and the guide column is at least three, the pressure bearing column and the guide column are arranged in a circumferential direction of the circumference, and the difference between two arc angles formed by any three adjacent ones in the circumferential direction of the circumference is not more than 30°.

[0011] In some embodiments, the number of the pressure bearing column is two, the number of the guide column is one, and the two pressure bearing columns and the one guide column are uniformly arranged.

[0012] The number of the pressure columns is one, and the number of the guide columns is two, and the pressure columns and the guide columns are evenly spaced.

[0013] In some embodiments, the heat disc assembly further comprises a first fixed column and a second fixed column located in the circumference, and the first fixed column and the second fixed column are connected to the outer pot.

[0014] The line between the first fixed column and the second fixed column is parallel to the line between the pressure column and the guide column; or

[0015] The number of the pressure columns and the guide columns is three, and the number of the pressure columns is two, and the line between the two pressure columns is parallel to the line between the first fixed column and the second fixed column; or

[0016] The number of the pressure columns and the guide columns is three, and the number of the guide columns is two, and the line between the two guide columns is parallel to the line between the first fixed column and the second fixed column.

[0017] In some embodiments, the center of the first fixed column and the center of the second fixed column satisfy at least one of the following conditions:

[0018] The center of the first fixed column and the center of the second fixed column are located on a radial line passing through the center of the heating disc;

[0019] The first fixed column and the second fixed column are symmetrically arranged about the center of the heating disc;

[0020] The diameter of the circle on which the first fixed column and the second fixed column are located is d1, and the diameter of the circumference is d2, wherein the size difference between the d2 and the d1 is greater than 10 mm.

[0021] In some embodiments, the bottom wall of the outer pot has fixed holes, and the two fixed holes are respectively arranged one-to-one with the first fixed column and the second fixed column, and the first fixed column and the second fixed column each have a connecting hole, and the cooking device further comprises:

[0022] A fastening structure connected to the fixed hole and the connecting hole to fix the heat disc assembly and the outer pot.

[0023] In some embodiments, the fastening structure comprises:

[0024] A fastening screw connected to the fixed hole and the connecting hole; and

[0025] a fastening spring between the fastening screw and the outer bottom wall of the outer pot;

[0026] wherein the fastening spring at least meets one of the following conditions:

[0027] the thickness of the fastening spring is a, and the a meets: 0.1mm≤a≤3mm;

[0028] the fastening spring is in a planar structure or the fastening spring is in a cap shape, and the fastening spring is convex to a side away from the bottom wall of the outer pot;

[0029] in the up-down direction of the cooking device, the distance between the fastening spring and the first fixed column or the second fixed column is b, and the b meets: 0mm<b≤5mm.

[0030] In some embodiments, the bottom of the outer pot meets one of the following conditions:

[0031] the bottom of the outer pot is recessed to form a sunken platform towards the direction of the hot disc assembly, and both the fixed holes are arranged on the platform surface of the sunken platform;

[0032] the bottom of the outer pot is provided with a first reinforcing rib, and the first reinforcing rib is arranged around the outer circumferential side of the two fixed holes;

[0033] the bottom of the outer pot is provided with a plurality of second reinforcing ribs, and the plurality of second reinforcing ribs are distributed in a radial manner.

[0034] In some embodiments, the cross-sectional shape of the guide column is non-circular, the shape of the guide hole is matched with the shape of the guide column, and the guide hole and the guide column are limited in the circumferential direction; or

[0035] the height of the column body of the guide column arranged in the guide hole is h1, and the thickness of the elastic element is h2; wherein the h1 meets: h1≥h2 / 3.

[0036] In the embodiments, the elastic element is limited on the guide column, avoiding the direct contact between the connecting piece and the elastic element in the related art, thereby reducing the loosening and deformation of the connecting piece caused by the deformation of the elastic element in the working process, and improving the pressure control stability and service life of the electric pressure cooker.

[0037] In the embodiments, the pressure bearing column abutting against the bottom wall of the outer pot is arranged, so that the number of the elastic elements is reduced, the production cost is reduced while the basic functions are maintained.

[0038] Since the number of the elastic elements is reduced, the assembly process is simpler, the assembly steps and time are reduced, and the production efficiency is improved. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is an exploded view of a cooking device provided in one embodiment of this application;

[0041] Figure 2 This is a partial cross-sectional schematic diagram of a cooking apparatus provided in an embodiment of this application;

[0042] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0043] Figure 4 This is a schematic diagram of the structure of a hot plate assembly provided in an embodiment of this application;

[0044] Figure 5 This is a schematic diagram of the structure of a hot plate assembly provided in another embodiment of this application;

[0045] Figure 6 This is a partial cross-sectional schematic diagram of a cooking apparatus provided in one embodiment of this application;

[0046] Figure 7 for Figure 6 A magnified view of a portion of point B in the middle;

[0047] Figure 8 This is a schematic diagram of the structure of the outer pot provided in one embodiment of this application;

[0048] Figure 9 This is a schematic diagram of the outer pot structure provided in another embodiment of this application;

[0049] Figure 10 This is a schematic diagram of the structure of the outer pot provided in another embodiment of this application;

[0050] Figure 11 This is another structural schematic diagram of a hot plate assembly provided in an embodiment of this application.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100, cooking equipment; 10, outer pot; 10a, fixing hole; 10b, sink; 10c, first reinforcing rib; 10d, second reinforcing rib; 10e, center hole; 20, hot disc assembly; 21, heating disc; 21a, through hole; 22, pressure bearing column; 23, guide column; 241, first fixing column; 242, second fixing column; 24a, connecting hole; 30, elastic element; 30a, guide hole; 40, fastening structure; 41, fastening screw; 42, fastening spring plate. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0054] Please refer to Figure 1 The present embodiment relates to a kind of cooking equipment 100, currently, the kind of cooking equipment 100 is various, with function division, cooking equipment 100 generally includes electric rice cooker, electric stove, electric pressure cooker, electric oven, microwave oven etc.. The present embodiment is described below with cooking equipment 100 as electric pressure cooker, electric rice cooker, electric stove, electric oven, microwave oven etc. Other cooking equipment 100 can be considered similarly.

[0055] Electric pressure cooker is a kind of food cooking equipment using electric heating and pressure cooking technology, main function is through the high-temperature and high-pressure environment generated by electric energy heating, accelerates the cooking process of food, while maintaining the nutrition and taste of food.

[0056] Please continue to refer to Figure 1 Electric pressure cooker includes outer pot 10, inner pot (not shown in figure) and hot disc assembly 20, inner pot is installed in outer pot 10, inner pot is the part directly contacted with food in electric pressure cooker, usually made of stainless steel or other high-temperature resistant, corrosion resistant materials. The main role of inner pot is to place food, and bear high temperature and pressure during cooking. While outer pot 10 as shell, can accommodate and protect the internal structure, at the same time, heat insulation, reduce the loss of heat to the outside during cooking, and improve the user's use safety. Hot disc assembly 20 includes heating disc 21 and pressure bearing column 22 and guide column 23 arranged on the side of the bottom wall of heating disc 21 towards outer pot 10, heating disc 21 is located between inner pot and outer pot 10, heating disc 21 is the main heating component, which can convert electric energy into heat energy to heat the food in the inner pot, pressure bearing column 22 is connected to the bottom of heating disc 21, extends towards outer pot 10, and abuts with the inner bottom wall of outer pot 10, which can support and conduct pressure, to ensure that heating disc 21 can stably bear pressure during work.

[0057] The guide column 23 is arranged in a spaced manner with the pressure bearing column 22, the guide column 23 is connected to the bottom of the heating disc 21 and extends towards the outer pot 10, the cooking device 100 further comprises an elastic element 30, the elastic element 30 has a guide hole 30a in limiting cooperation with the guide column 23, the elastic element 30 is positioned on the guide column 23 and supported on the bottom wall of the outer pot 10, specifically, the bottom wall of the outer pot 10 has a sunken bottom structure on the side facing the heating disc 21, the elastic element 30 is supported on the flat surface on the side of the sunken bottom structure, the elastic element 30 can provide a restoring force, i.e. elastic support, so that the heating disc 21 can be stably positioned in the outer pot 10, while allowing a certain displacement when the pressure changes to adapt to the pressure changes, buffering the pressure changes of the heating disc 21 during the working process, improving the stability of pressure control.

[0058] In the related art, the heating disc 21 is generally fixed to the outer pot 10 by a connecting piece, and part of the structure on the connecting piece abuts against the elastic element 30 installed between the heating disc 21 and the outer pot 10. Since the heating disc 21 will be subjected to pressure during the working process, the elastic element 30 will deform, resulting in elastic deformation of the connecting piece after long-term use, which affects the pressure control accuracy and service life of the electric pressure cooker. In the embodiment, the elastic element 30 is limited on the guide column 23, avoiding the direct abutment of the connecting piece and the elastic element 30, thereby reducing the problem of loosening and deformation of the connecting piece caused by the deformation of the elastic element 30 during the working process, and improving the pressure control stability and service life of the electric pressure cooker.

[0059] Further, in the related art, elastic elements 30 need to be provided at multiple places to support and buffer the heating disc 21, and in the embodiment, the pressure bearing column 22 abutting against the bottom wall of the outer pot 10 is provided, in combination with the pressure bearing column 22 and the guide column 23, the number of elastic elements 30 can be reduced, while maintaining the basic function and reducing the production cost. It should be noted that after the electric pressure cooker generates pressure, the heating disc 21 is subjected to downward force, at this time, the outer pot 10 has a certain elastic deformation ability at the contact point with the pressure bearing column 22, ensuring that the outer pot 10 can slightly deform under pressure, thereby avoiding the heating disc 21 from tilting obviously.

[0060] Since the use of the elastic element 30 is reduced, the assembly process is simpler, the assembly steps and time are reduced, and the production efficiency is improved.

[0061] Understandably, the hot plate assembly 20 also includes a pressure switch column, and the outer bottom wall of the outer pot 10 is provided with a pressure switch, one end of which is fastened to the outer pot 10 by a screw, and the other end is in contact with the pressure switch column. When the electric pressure cooker generates pressure, the heating plate 21 moves downward, and the pressure switch column moves synchronously. When the displacement of the pressure switch column is greater than the trip displacement of the pressure switch, the switch trips, and the electric pressure cooker stops heating. When the pressure of the electric pressure cooker decreases, the downward displacement of the heating plate 21 decreases. When the displacement exceeds the reset displacement of the pressure switch, the pressure switch resets, and the electric pressure cooker resumes heating. This process is repeated.

[0062] In some embodiments, the elastic element 30 has a length direction. In order to enable the elastic element 30 to be assembled in place at one time during the assembly process of the guide column 23, the cross-sectional shape of the guide column 23 is non-circular, and the shape of the guide hole 30a is adapted to the shape of the guide column 23. If the cross-sectional shape of the guide column 23 is circular, the length direction of the elastic element 30 can be adjusted when the elastic element 30 is sleeved on the guide column 23. In the present embodiment, the cross-sectional shape of the guide column 23 is non-circular, for example, rectangular, and the guide hole 30a is also a rectangular hole, which can ensure that the orientation of the length direction of the elastic element 30 meets the preset requirements, thereby improving the assembly efficiency and quality. For an automatic production line, this design enables the robot to perform the assembly task more accurately, because the installation direction and position of the elastic element 30 are fixed, reducing the complexity of automatic assembly. The cross-sectional shape of the guide column 23 can also be oval, rhombus, etc., which is not limited in the present application.

[0063] Further, the non-circular design prevents the elastic element 30 from rotating around the guide column 23 during assembly, i.e., the guide hole 30a and the guide column 23 are limited in circumferential direction, and the position of the elastic element 30 is limited after being assembled in place, so that the elastic element 30 will not rotate circumferentially, thereby ensuring the stability and reliability of the elastic element 30 during the entire use process.

[0064] Please refer to Figure 2 and Figure 3 The guide column 23 can be a column body with an outer diameter gradually increasing along its extension direction, or a column body with a uniform outer diameter. The design of the guide column 23 aims to prevent the elastic element 30 from deviating from its axial position and ensure that the elastic element 30 can stably support the heating plate 21 during work. The height of the column body of the guide column 23 that can be inserted into the guide hole 30a is h1, and the thickness of the elastic element 30 is h2; wherein h1 satisfies: h1≥h2 / 3. The height of the guide column 23 is sufficient to provide sufficient guiding and limiting effect, ensuring that the elastic element 30 will not deviate from the axial position of the guide column 23 during work. This design optimizes the height of the guide column 23 under the premise of ensuring its function, significantly reduces the amount of material used, and thus reduces the production cost.

[0065] When the height of the guide column 23 that can be arranged in the guide hole 30a exceeds the thickness of the elastic element 30, a perforation can be arranged on the outer pot 10, and part of the guide column 23 can be arranged in the perforation, so that the connection between the guide column 23 and the outer pot 10 is more firm, the relative displacement caused by vibration or pressure change is reduced, and the stability of the overall structure is improved.

[0066] In some embodiments, the size and position of the guide column 23 can also be matched with the pressure switch, so that the guide column 23 can sense the pressure change during displacement and trigger the corresponding action. In this embodiment, the pressure switch column is not needed, and the function of the pressure switch column is realized by the guide column 23, which reduces the number of components and makes the overall structure more simple, facilitating production and maintenance.

[0067] Specifically, the guide column 23 includes a support part and a guide part, the support part is connected to the bottom of the heating disc 21, the guide part is connected to the support part, the elastic element 30 is limited on the guide part through the guide hole 30a, and the side of the support part facing the guide part has an abutting plane capable of abutting with one side of the elastic element 30.

[0068] Please refer to Figure 4 and Figure 5 In some embodiments, the pressure bearing column 22 and the guide column 23 are located on the same circumference with the center of the heating disc 21 as the center, and the pressure bearing column 22 and the guide column 23 can be uniformly or non-uniformly arranged. The uniform arrangement on the same circumference can ensure that the pressure is uniformly distributed when the heating disc 21 is under pressure, which helps to maintain the balance of the heating disc 21 and prevent the heating disc from tilting or deforming due to uneven force distribution. Moreover, arranging the pressure bearing column 22 and the guide column 23 on the same circumference can simplify the manufacturing process, because this layout facilitates the use of standardized components and assembly processes.

[0069] Further, the total number of the pressure bearing column 22 and the guide column 23 is at least three, that is, the total number of the pressure bearing column 22 and the guide column 23 can be three, four or even five, which enhances the overall structural strength of the heating disc 21 installed in the outer pot 10, so that it can better withstand the pressure and heat during the cooking process. This application does not limit this. The pressure bearing column 22 and the guide column 23 are arranged along the circumferential direction of the circumference, and the difference between the two arc angles formed by any three adjacent points along the circumferential direction of the circumference is not more than 30°, which can more evenly distribute the pressure on the heating disc 21 and reduce local stress concentration. By controlling the difference between the arc angles, it can be ensured that in extreme cases, such as sudden pressure increase, the equipment will not fail due to uneven distribution of support points, improving the durability and safety of the equipment.

[0070] As Figure 4As shown, in one configuration, the number of bearing columns 22 is set to one, and the number of guide columns 23 is set to two. The bearing column 22 and the two guide columns 23 are evenly spaced. The design of only a single bearing column 22 simplifies the structure and avoids the assembly complexity caused by too many elastic elements 30. Correspondingly, the number of elastic elements 30 that need to be installed is two, which can provide a more balanced and reliable elastic buffering effect.

[0071] like Figure 5 As shown, in another configuration, for electric pressure cookers with low pressure requirements, when the rated working pressure does not exceed 60 kPa, the number of pressure-bearing columns 22 can be set to two and the number of guide columns 23 to one. The two pressure-bearing columns 22 and one guide column 23 are evenly spaced. In this case, only one elastic element 30 needs to be installed to meet the usage requirements and improve assembly efficiency.

[0072] In the above configuration, even with the reduction of the elastic element 30, the evenly spaced arrangement of two bearing columns 22 and one guide column 23, or one bearing column 22 and two guide columns 23, still ensures that the pressure on the heating plate 21 is evenly distributed across all support points when under pressure, reducing local stress concentration. This design maintains the product's high performance and reliability while meeting low-pressure requirements.

[0073] like Figure 4 and Figure 5 As shown, in some embodiments, the heating plate assembly 20 further includes two first fixing posts 241 and second fixing posts 242 located within the circumference. Both the first fixing posts 241 and second fixing posts 242 are connected to the outer pot 10. Both the first fixing posts 241 and second fixing posts 242 can be fixedly connected to the outer pot 10 via connectors, limiting large displacements of the heating plate assembly 20 within the outer pot 10. The first fixing posts 241 and second fixing posts 242 are spaced apart from the guide posts 23. During the fixing process, the tension force of the connectors mainly acts on the first fixing posts 241 and second fixing posts 242, rather than on the elastic element 30, reducing the tension stress borne by the elastic element 30. This not only extends the service life of the elastic element 30 but also improves the overall performance and stability of the electric pressure cooker.

[0074] It should be noted that the structures of the first fixing column 241 and the second fixing column 242 can be the same, and the first fixing column 241 is provided with at least one and / or the second fixing column 242 is provided with at least one, which can enhance the connection stability between the hot plate assembly 20 and the outer pot 10, distribute the force evenly, and ensure that the cooking equipment 100 maintains the connection state and corresponding position during transportation, thereby improving the stability and service life of the cooking equipment 100.

[0075] like Figure 6As shown, to improve the connectivity of the hot plate assembly 20 and the outer pot 10, the bottom wall of the outer pot 10 has fixing holes 10a, two fixing holes 10a are respectively arranged one-to-one with the first fixing column 241 and the second fixing column 242, the first fixing column 241 and the second fixing column 242 both have connecting holes 24a, the cooking device 100 further comprises a fastening structure 40, the fastening structure 40 connects the fixing holes 10a and the connecting holes 24a to fix the hot plate assembly 20 and the outer pot 10, and it is understandable that the number of the fastening structure 40 corresponds to the number of the first fixing column 241 and the second fixing column 242. The connection stability between the hot plate assembly 20 and the outer pot 10 can be significantly enhanced. This design ensures that the hot plate assembly 20 will not be displaced or loosened greatly even during transportation, improving the integrity of the cooking device 100.

[0076] As shown in Figure 6 and Figure 7 Specifically, the fastening structure 40 comprises a fastening screw 41 and a fastening spring 42, the fastening screw 41 connects the fixing holes 10a and the connecting holes 24a; the fastening spring 42 is located between the fastening screw 41 and the outer surface of the bottom wall of the outer pot 10, and the combination of the fastening screw 41 and the fastening spring 42 can significantly enhance the connection stability between the hot plate assembly 20 and the outer pot 10. The fastening screw 41 ensures that the first fixing column 241 and the second fixing column 242 are firmly connected with the outer pot 10, and the fastening spring 42 provides additional elastic support to prevent loosening caused by thermal expansion or cold shrinkage, ensuring long-term stability of the connection.

[0077] Please continue to refer to Figure 7 , wherein the thickness of the fastening spring 42 is a, and a satisfies: 0.1mm≤a≤3mm. Proper elastic buffering is provided. This elastic buffering can absorb the stress generated by thermal expansion or cold shrinkage, prevent the fastening screw 41 from loosening due to temperature changes, and thus prolong the service life of the product. When the fastening screw 41 loosens, the fastening spring 42 can provide an additional force to press the outer pot. This force can compensate for the gap caused by the loosening of the fastening screw 41, ensuring that the connection remains tight and preventing loosening of the connection.

[0078] When a is greater than 3mm, the over-thick fastening spring 42 will increase the difficulty of assembly. Thicker fastening springs 42 require more force to compress and secure during installation, which not only increases assembly time and cost, but also can cause improper assembly, affecting the reliability of the connection.

[0079] The fastening structure 40 can also be a buckle or a clasp, and when it is set as a buckle or a clasp, the specific connection method is also adaptively adjusted, which is not limited in the present application.

[0080] Further, the fastening sheet 42 is in a planar structure, the fastening sheet 42 in a planar structure is simple in production process, low in cost, and easy to mass produce; or the fastening sheet 42 is in a cap shape, the fastening sheet 42 is protruded toward the side away from the bottom wall of the outer pot 10, the protruded part of the cap-shaped sheet can better absorb and disperse vibration, reduce loosening of the fastener caused by vibration, and the protruded part is protruded toward the side away from the bottom wall of the outer pot 10, which can reduce the direct contact of the screw head with the bottom wall of the outer pot 10, and reduce the risk of scratches or indentations.

[0081] In some embodiments, along the up-down direction of the cooking device 100, the distance between the fastening sheet 42 and the first fixing column 241 or the second fixing column 242 is b, b satisfies: 0mm < b≤5mm, the appropriate gap b makes it easier to assemble the fastening screw 41, the operator can have enough space for adjustment and positioning, and ensures that the fastening sheet 42 can be correctly deformed and compressed when subjected to the pressure of the fastening screw 41, thereby providing better fixing effect. If the gap b is greater than 5mm, i.e., the distance between the first fixing column 241 or the second fixing column 242 and the fastening sheet 42 is too far, the fastening screw 41 is difficult to align and fix when assembling, which may cause assembly difficulty, increase assembly time and cost. And the too large gap may cause the fastening sheet 42 to be unable to effectively transmit the fastening force, thereby reducing the connection reliability between the first fixing column 241 and the second fixing column 242 and the outer pot 10. Unreliable connection directly affects the overall structural stability of the cooking device 100, which may cause the electric pressure cooker to shake during transportation.

[0082] For the part of the outer pot 10 bottom where the fastening screw 41 is installed, because there is a tightening fixing force applied by the fastening screw 41, after a long time of pressure use, this part will deform to some extent, causing the fastening screw 41 to be not tightened, and further causing the heating disc 21 to be loose.

[0083] Without solving the above problems, the bottom of the outer pot 10 satisfies one of the following conditions:

[0084] As shown in Figure 8 The bottom of the outer pot 10 is recessed in the direction of the heating disc assembly 20 to form a sunken table 10b, and the two fixing holes 10a are arranged on the table surface of the sunken table 10b. The sunken table 10b provides a more stable platform to ensure that the fastening screw 41 can more firmly connect the first fixing column 241 and the second fixing column 242, and reduce loosening of the heating disc 21. The design of the sunken table 10b can concentrate on strengthening the local strength of the bottom of the outer pot 10, especially around the fixing hole 10a, and reduce deformation caused by the tightening force of the fastening screw 41;

[0085] As shown in Figure 9As shown, the bottom of the outer pot 10 is provided with a first reinforcing rib 10c which is arranged on the outer circumferential side of the two fixing holes 10a. The first reinforcing rib 10c can improve the anti-deformation ability of the bottom of the outer pot 10, enhance the structural strength around the fixing holes 10a, and ensure that the fastening screws 41 can still maintain good connection effect after long-term pressure use, thereby reducing the deformation of the outer pot 10 caused by the tensioning force of the fastening screws 41.

[0086] As shown in Figure 10 , the bottom of the outer pot 10 is provided with a plurality of second reinforcing ribs 10d which are linear and radially distributed. The radially distributed second reinforcing ribs 10d can uniformly distribute stress and reduce stress concentration around the fixing holes 10a, thereby improving the anti-deformation ability of the bottom of the outer pot 10 and ensuring that the fastening screws 41 can still maintain good connection effect after long-term pressure use.

[0087] Please refer to Figure 11 , the outer pot 10 also has a central hole 10e, and the heating disc 21 is provided with a through hole 21a corresponding to the central hole 10e. The cooking device 100 comprises a temperature control assembly which is installed on the outer pot 10 and located in the central hole 10e and can move up and down along the axial direction of the central hole 10e. The first fixing column 241 and the second fixing column 242 can be arranged on the circumferential direction of the through hole 21a, and compared with the pressure column 22 or the guide column 23, the first fixing column 241 and the second fixing column 242 are arranged closer to the direction of the through hole 21a.

[0088] Please continue to refer to Figure 11 , the diameter of the circle where the first fixing column 241 and the second fixing column 242 are located is d1. Understandably, d1 refers to the distance value between the first fixing column 241 and the second fixing column 242, and the diameter of the circle where the pressure column 22 and the guide column 23 are located is d2. The size difference between d2 and d1 is greater than 10 mm, and the connecting piece can avoid the elastic element 30 when locking the first fixing column 241 and the second fixing column 242. This avoids exerting excessive tensioning force on the elastic element 30 during the fixing process, thereby preventing the elastic element 30 from deforming and ensuring that it maintains good elastic properties during the working process.

[0089] Further, the centers of the first fixed column 241 and the second fixed column 242 are located on a radial line passing through the center of the heating disc 21, so that the mechanical arm can move directly along the same radial line during assembly, thus simplifying the path and reducing unnecessary movement and adjustment time. Alternatively, the first fixed column 241 and the second fixed column 242 are symmetrically arranged about the center of the heating disc 21, which can better support the heating disc 21 to keep it stable during operation and effectively prevent the heating disc 21 from tilting or deviating under pressure. The symmetrically arranged first fixed column 241 and second fixed column 242 also make the assembly operation and subsequent maintenance more convenient, for example, when replacing the heating disc 21, it can be easier to maintain balance and positioning.

[0090] The total number of the pressure-bearing columns 22 and the guide columns 23 is three, and the configuration is as described above, including: the number of pressure-bearing columns 22 is set to two, and the number of guide columns 23 is one; or the number of guide columns 23 is set to two, and the number of pressure-bearing columns 22 is one. Understandably, there are various arrangements along the clockwise direction of the heating disc 21, for example: two pressure-bearing columns 22 are arranged adjacent to each other, one guide column 23 is located between the two pressure-bearing columns 22, two guide columns 23 are arranged adjacent to each other, and one pressure-bearing column 22 is located between the two guide columns 23.

[0091] In some embodiments, the line connecting the first fixed column 241 and the second fixed column 242 is parallel to the line connecting any two adjacent pressure-bearing columns 22 and guide columns 23, specifically, the line connecting the first fixed column 241 and the second fixed column 242 is parallel to the line connecting the pressure-bearing column 22 and the guide column 23, or the line connecting the two pressure-bearing columns 22 is parallel to the line connecting the first fixed column 241 and the second fixed column 242, or the line connecting the two guide columns 23 is parallel to the line connecting the first fixed column 241 and the second fixed column 242. By ensuring the parallel arrangement of the lines, a more stable geometric structure can be formed. This parallel arrangement helps to evenly distribute pressure and reduce local stress concentration, thereby improving the stability and service life of the hot disc assembly 20. The parallel arrangement ensures the cooperative action of each support point under stress, preventing deformation or damage caused by uneven stress.

[0092] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the positional relationship described in the drawings is only used for exemplary illustration, and cannot be understood as a limitation on the present patent, and for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0093] In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or suggest relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0094] In the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a mediating element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a mediating element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0096] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A cooking apparatus, characterized by, The cooking device comprises: an outer pot; a hot plate assembly located in the outer pot, the hot plate assembly comprising a heating plate, a pressure bearing column and a guide column arranged on a side of the heating plate facing a bottom wall of the outer pot, the pressure bearing column abutting against the bottom wall of the outer pot; and a resilient element having a guide hole in position limiting cooperation with the guide column, the resilient element being positioned on the guide column and supported on the bottom wall of the outer pot.

2. The cooking apparatus according to claim 1, characterized in that, The pressure bearing column and the guide column are located on the same circumference with the center of the heating plate as the center.

3. The cooking apparatus according to claim 2, characterized in that, The total number of the pressure bearing column and the guide column is at least three, the pressure bearing column and the guide column are arranged in a circumferential direction of the circumference, and the difference between two arc angles formed by any three adjacent pressure bearing columns or guide columns in the circumferential direction of the circumference is not more than 30°.

4. The cooking apparatus according to claim 2, wherein The number of the pressure bearing column is two, the number of the guide column is one, and the two pressure bearing columns and the one guide column are uniformly arranged. The number of the pressure bearing column is one, the number of the guide column is two, and the one pressure bearing column and the two guide columns are uniformly arranged.

5. The cooking apparatus according to claim 3 or 4, characterized in that, The hot plate assembly further comprises a first fixed column and a second fixed column located in the circumference, and the first fixed column and the second fixed column are connected to the outer pot. The line connecting the first fixed column and the second fixed column is parallel to the line connecting the pressure bearing column and the guide column; or The total number of the pressure bearing column and the guide column is three, and the number of the pressure bearing column is two, and the line connecting the two pressure bearing columns is parallel to the line connecting the first fixed column and the second fixed column; or The total number of the pressure bearing column and the guide column is three, and the number of the guide column is two, and the line connecting the two guide columns is parallel to the line connecting the first fixed column and the second fixed column.

6. The cooking apparatus according to claim 5, wherein The first fixed column and the second fixed column at least satisfy one of the following conditions: The center of the first fixed column and the center of the second fixed column are located on a radial line passing through the center of the heating plate; The first fixed column and the second fixed column are symmetrically arranged about the center of the heating plate; The diameter of the circle on which the first fixed column and the second fixed column are located is d1, and the diameter of the circumference is d2, wherein the size difference between the d2 and the d1 is greater than 10 mm.

7. The cooking apparatus according to claim 5, wherein The bottom wall of the outer pot has fixed holes, and two fixed holes are respectively arranged one-to-one with the first fixed column and the second fixed column, the first fixed column and the second fixed column each have a connecting hole, and the cooking device further comprises: a fastening structure connecting the fixed hole and the connecting hole to fix the hot plate assembly and the outer pot.

8. The cooking apparatus according to claim 7, characterized in that, The fastening structure comprises: a fastening screw connecting the fixed hole and the connecting hole; and a fastening spring located between the fastening screw and the outer surface of the bottom wall of the outer pot. The fastening spring at least satisfies one of the following conditions: The thickness of the fastening spring is a, and the a satisfies: 0.1 mm≤a≤3 mm; The fastening sheet is in a planar structure or a cap shape, and the fastening sheet is convex towards a side away from the bottom wall of the outer pot; In the up-down direction of the cooking device, the distance between the fastening sheet and the first fixed column or the second fixed column is b, and the b satisfies: 0mm < b ≤ 5mm.

9. The cooking apparatus according to claim 7, wherein The bottom of the outer pot satisfies one of the following conditions: The bottom of the outer pot is recessed to form a sunken table towards the direction of the hot disc assembly, and the two fixed holes are arranged on the table surface of the sunken table; The bottom of the outer pot is provided with a first reinforcing rib, and the first reinforcing rib is annularly arranged on the outer circumferential side of the two fixed holes; The bottom of the outer pot is provided with a plurality of second reinforcing ribs, and the plurality of second reinforcing ribs are distributed in a radial manner.

10. The cooking apparatus according to claim 1, wherein The cross-sectional shape of the guide column is non-circular, the shape of the guide hole is matched with the shape of the guide column, and the guide hole and the guide column are limited in the circumferential direction; or The column height of the guide column that can be arranged in the guide hole is h1, and the thickness of the elastic element is h2; wherein the h1 satisfies: h1 ≥ h2 / 3.

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