Fastener and cooking utensil

Abstract

The utility model provides a fastener and a cooking utensil. The buckling piece is movably connected to the cooking utensil between a locking position and an unlocking position, the buckling piece comprises an upper buckling part, a lower buckling part, a fixing piece and a transmission column, and the upper buckling part is provided with a mounting hole penetrating in the vertical direction. The fixing piece comprises a head part and a rod-shaped extending part arranged in the mounting hole in a penetrating mode, and the radial size of the head part is larger than that of the mounting hole. The transmission column is located above the upper buckling part and comprises a first end and a second end which are oppositely arranged in the length direction of the transmission column, the first end is provided with a connecting cap used for being connected to the cooking utensil, the second end is connected to the rod-shaped extending part of the fixing piece so as to be connected to the upper buckling part, and the transmission column is provided with a connecting hole extending in the length direction of the transmission column. And the rod-shaped extension part is connected into the connecting hole. The head of the fixing piece and the transmission column are located on different sides of the upper buckling part. The fixing piece and the transmission column are arranged in an embedded mode, so that force and torque generated in the locking and unlocking process can be borne.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, and more specifically, to a fastener and a cooking utensil. Background Technology

[0002] Existing cooking appliances use a locking mechanism to ensure a tight seal between the lid and the inner pot. The locking mechanism is movably connected to the lid. It is connected to a drive component via a connecting post to enable locking and unlocking. In existing technology, the connecting post and the locking mechanism are typically fixed together by welding. However, under prolonged use and frequent opening and closing operations, welded connections may loosen or break due to metal fatigue or aging of the weld points.

[0003] Therefore, there is a need to provide a fastener and a cooking appliance to at least partially solve the above problems. Utility Model Content

[0004] The utility model description section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0005] To at least partially solve the above problems, the first aspect of this utility model provides a fastening member, which is movably connected to the cooking appliance between a locked position and an unlocked position, the fastening member comprising:

[0006] The upper and lower fastening parts are provided, wherein the upper fastening part is provided with a mounting hole that extends through in the vertical direction;

[0007] A fastener, the fastener comprising a head and a rod-shaped extension passing through the mounting hole, the radial dimension of the head being larger than the radial dimension of the mounting hole;

[0008] A transmission column, located above the upper fastening portion, includes a first end and a second end arranged opposite to each other along its length. The first end is provided with a connecting cap for connecting to the cooking utensil, and the second end is connected to the rod-shaped extension of the fixing member to connect to the upper fastening portion. The transmission column is provided with a connecting hole extending along its length, and the rod-shaped extension is connected to the connecting hole.

[0009] The head of the fastener and the transmission column are located on different sides of the upper fastening portion.

[0010] According to this solution, the fixing member, transmission column, and upper fastening part form a reliable connection, which can significantly improve the overall connection strength of the fastening part. The nested connection structure between the fixing member and transmission column can withstand the forces and torques generated during locking and unlocking, preventing loosening or failure during long-term use. The upper fastening part is clamped between the head of the fixing member and the transmission column, thereby limiting the length of the fastening part.

[0011] Optionally, the connecting hole extends through the length of the transmission column;

[0012] At least a portion of the connecting cap extends into the connecting hole, and the connecting cap abuts against or is spaced apart from the rod-shaped extension within the connecting hole.

[0013] According to this solution, the connecting cap and the rod-shaped extension cooperate to fill the interior of the transmission column, and the transmission column, the connecting cap, and the rod-shaped extension work together to bear the influence of external loads and vibrations.

[0014] Optionally, the connecting cap is connected to the transmission column via a thread.

[0015] According to this scheme, the threaded connection allows the connecting cap to be finely adjusted along the length of the drive column.

[0016] Optionally, the outer diameter of the transmission column is greater than or equal to 5 mm.

[0017] According to this solution, using a larger diameter transmission column can provide stronger structural strength and accommodate larger diameter fasteners, thereby further enhancing the strength of the entire assembly and significantly improving its reliability and durability.

[0018] Optionally, the mounting hole is located in the middle of the upper fastening portion.

[0019] According to this scheme, the forces between the connecting column and the upper fastening part are relatively balanced.

[0020] Optionally, the fastening member further includes a middle portion, and the upper fastening portion and the lower fastening portion are respectively connected to the upper and lower ends of the middle portion.

[0021] According to this solution, the fastener has a reasonable structure and can form a stable fastening structure.

[0022] Optionally, the fastener is constructed as a screw, bolt, rivet, or pin.

[0023] Optionally, the upper fastening part abuts against the transmission column, or the upper fastening part is welded to the transmission column.

[0024] According to this scheme, the installation of abutment or welded connection structures can provide a tighter connection.

[0025] Optionally, the upper fastening portion has a first side facing downward and a second side facing upward, the first side is provided with a mounting portion recessed towards the second side, the mounting hole is formed in the mounting portion, and the head of the fastener is received in the mounting portion.

[0026] Optionally, the fastener does not protrude from the outer surface of the first side.

[0027] According to this solution, the mounting part provides an additional space for the head of the fastener. This space ensures that even when the fastener moves, the head of the fastener will not come into contact with or interfere with other parts, thereby ensuring the reliability of the fastener's movement.

[0028] Optionally, the mounting portion is constructed as a single-stage or multi-stage stepped structure; and / or

[0029] Along the vertical direction, the center of the mounting portion is closer to the drive column than its edge; and / or

[0030] When the mounting part is constructed as a multi-step structure, the depth of each step is 1.5-2mm.

[0031] According to this solution, a single or multi-level stepped structure provides more precise assembly space for the connection between the fastener and the fixing component, while also improving the strength of the fastener.

[0032] Optionally, the mounting portion is adapted to the shape of the head.

[0033] According to this solution, the design of the mounting part adapting to the shape of the head can ensure that the fastener can be accurately positioned on the upper fastening part during assembly, avoiding errors and deviations during the assembly process.

[0034] Optionally, a gasket is provided between the mounting part and the head.

[0035] According to this solution, the gasket can adjust the gap between the mounting part and the head of the fastener to ensure a tight and stable fit between them.

[0036] Optionally, the head is bonded to the upper fastening portion.

[0037] Optionally, the rod-shaped extension is bonded to the transmission column.

[0038] According to this solution, an anti-loosening structure is formed by adhesive connection to prevent the fasteners from loosening from the transmission parts and the upper fastening parts after long-term use, or to prevent consumers from accidentally unscrewing the screws and causing safety accidents.

[0039] Optionally, the depth of the mounting portion is 1-10 mm.

[0040] According to this solution, a depth range of 1-10mm can adapt to different application scenarios and assembly requirements.

[0041] Optionally, the mounting portion protrudes from the outer surface of the second side.

[0042] According to this design, the protrusion of the mounting part on the second side increases the structural strength of the fastener, enabling it to withstand greater external forces. Simultaneously, the protrusion of the mounting part on the second side also provides a mounting platform for the drive column.

[0043] Optionally, the fastener satisfies at least one of the following conditions:

[0044] The second side is provided with an anti-slip part, which is adapted to abut against the transmission column;

[0045] The transmission column is provided with an anti-slip part, which is adapted to abut against the second side;

[0046] An anti-slip part is provided between the second side and the transmission column, and the anti-slip part is adapted to abut against the second side and the transmission column respectively.

[0047] According to this solution, the anti-slip part can increase the friction between the transmission column and the fastener, thereby preventing rotation and slippage caused by vibration or impact during transmission.

[0048] Optionally, the fastener satisfies at least one of the following conditions:

[0049] When the anti-slip part is provided on the second side or the transmission column, the anti-slip part is constructed as a protrusion protruding outward from the outer surface of the second side / or the transmission column;

[0050] When the anti-slip part is provided on the second side or the transmission column, the anti-slip part is constructed as a groove recessed inward from the outer surface of the second side / or the transmission column;

[0051] When the anti-slip part is disposed between the second side and the transmission column, the anti-slip part is constructed as an anti-slip pad.

[0052] According to this solution, the anti-slip part constructed with protrusions, grooves and anti-slip pads has a simple structure and can effectively achieve anti-slip.

[0053] Optionally, the fastener satisfies at least one of the following conditions:

[0054] When the anti-slip part is disposed on the second side, the height difference between the anti-slip part and the outer surface of the second side is 0.01-2mm;

[0055] When the anti-slip part is provided on the transmission column, the height difference between the anti-slip part and the outer surface of the transmission column is 0.01-2mm.

[0056] According to this solution, within the range of 0.01-2mm, sufficient anti-slip effect can be guaranteed, while avoiding assembly difficulties or damage to the surface of the transmission column due to excessive height difference.

[0057] Optionally, the fastening element further includes:

[0058] A slider, the slider being fitted over the drive column, the slider being used to connect to the lid of the cooking appliance; and

[0059] An elastic element is located between the slider and the upper fastening portion.

[0060] According to this solution, the sliding friction of the fastener is reduced by using a slider. The combination of the slider and the elastic element makes the fastener's up-and-down movement more stable, enabling more reliable fastening or opening, while also optimizing stress distribution and reducing stress concentration and localized wear.

[0061] Optionally, the upper fastening portion is provided with a mounting portion protruding from the outer surface of the second side, and the elastic member is connected to the mounting portion.

[0062] According to this solution, the installation unit can limit the movement of the elastic element.

[0063] The second aspect of this utility model provides a cooking utensil, comprising:

[0064] The pot body includes a snap-fit ​​edge;

[0065] A lid, the lid comprising a liner and an inner lid, the inner lid being located on the side of the liner facing the pot body;

[0066] In the aforementioned fastening component, the connecting cap is movably suspended from the liner along a straight line perpendicular to the central axis of the cover body, the upper fastening portion is adapted to fasten with the inner cover, and the lower fastening portion is adapted to fasten with the fastening edge.

[0067] According to this solution, the fasteners ensure a tight connection between the lid and the inner pot.

[0068] Optionally, the cooking appliance includes a rotating rack with a transmission hole.

[0069] The liner is provided with a connecting groove;

[0070] The transmission column is slidably connected to the transmission hole and slidably connected to the connecting groove. When the rotating frame rotates, the transmission column moves within the transmission hole and is guided by the connecting groove to drive the fastening member to move.

[0071] According to this solution, the fastener can be guided by the transmission hole and the connecting groove to move between the locked position and the unlocked position.

[0072] Optionally, the rotating frame and the fastening member are located on different sides of the liner, and the radial dimension of the end of the connecting cap is greater than the width of the transmission hole.

[0073] According to this scheme, the fastener is suspended to the rotating frame via a connecting cap.

[0074] Optionally, the fastening element further includes a slider, which is sleeved on the transmission column and is used to connect to the connecting groove. Both the slider and the fastening element are located on the side of the liner facing the pot body.

[0075] According to this solution, a slider is connected to the liner to reduce the sliding friction of the fastener.

[0076] Optionally, the pot body includes a pot inner and a heat-insulating cover, and the fastening edge is formed on the pot inner or the heat-insulating cover; wherein,

[0077] The fastening element is movable in the radial direction of the inner pot.

[0078] According to this solution, different cooking needs can be met by adjusting the engagement of the fastening components with different fastening edges. The fastening components can move radially along the inner pot, and the locking and unlocking methods are simple and flexible.

[0079] Optionally, the fastening element further includes a middle portion;

[0080] The upper fastening portion is adapted to fasten with the inner cover, and both the upper fastening portion and the lower fastening portion extend toward the centerline of the cooking appliance.

[0081] According to this design, the upper and lower fastening parts provide clamping in both upward and downward directions for the lid and the pot body. The extension directions of the upper and lower fastening parts are adapted to the movement path of the fastening components.

[0082] Optionally, the fasteners are evenly distributed along the circumference of the cover.

[0083] According to this scheme, the circumferentially evenly distributed arrangement ensures a more uniform distribution of contact pressure between the lid and the edge of the pot when the lid is closed.

[0084] Optionally, the number of fasteners is 2-6.

[0085] According to this solution, by setting this number, it can be ensured that the contact pressure distribution between the lid and the edge of the pot body is more uniform when the lid is closed.

[0086] Optionally, the drive columns of the plurality of fasteners are connected to the same rotating frame.

[0087] According to this solution, the rotating frame provides driving force while enabling multiple fasteners to move simultaneously. Attached Figure Description

[0088] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings,

[0089] Figure 1 This is a cross-sectional schematic diagram of a cooking utensil according to a preferred embodiment of the present invention;

[0090] Figure 2 This is a three-dimensional schematic diagram of the pot body, fastening parts and detachable lid of a cooking appliance according to a preferred embodiment of the present invention.

[0091] Figure 3 This is a three-dimensional cross-sectional view of a cooking utensil according to a preferred embodiment of the present invention.

[0092] Figure 4 for Figure 3 An enlarged schematic diagram of part A in the diagram;

[0093] Figure 5 This is a three-dimensional schematic diagram of the fastening parts and detachable lid of a cooking utensil according to a preferred embodiment of the present invention.

[0094] Figure 6 This is a three-dimensional exploded view of the fastening component according to a preferred embodiment of the present invention.

[0095] Figure 7 This is a three-dimensional cross-sectional view of the fastening component according to a preferred embodiment of the present invention.

[0096] Explanation of reference numerals in the attached figures

[0097] 100:Cooker

[0098] 110: Pot Inner Wall

[0099] 120: middle plate

[0100] 130: Base

[0101] 140: Thermal Cover

[0102] 200: Cover

[0103] 210: Removable lid

[0104] 220: Liner

[0105] 221: Connecting slot

[0106] 300: Fastener

[0107] 310: Upper snap-fit ​​part

[0108] 3101: Mounting hole

[0109] 311: Installation Department

[0110] 312: Anti-slip section

[0111] 320: Middle section

[0112] 330: Lower snap-fit ​​part

[0113] 340: Transmission column

[0114] 3401: Connecting hole

[0115] 350: Fastener

[0116] 351: Head

[0117] 352: Rod-shaped extension

[0118] 360: Connector Cap

[0119] 370: Slider

[0120] 380: Elastic component

[0121] 390: Gasket

[0122] 400: Rotating frame

[0123] 410: Transmission hole Detailed Implementation

[0124] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with embodiments of the present invention.

[0125] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0126] In this document, ordinal numbers such as "first" and "second" used in this invention are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term "first component" does not imply the existence of "second component," and the term "second component" does not imply the existence of "first component."

[0127] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0128] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0129] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0130] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0131] This invention provides a cooking appliance. The cooking appliance of this invention can function as a rice cooker, electric pressure cooker, electric slow cooker, electric hot pot, and soy milk maker. The cooking appliance is suitable for pressure cooking.

[0132] The following will combine Figures 1 to 7 A detailed description of the cooking utensil according to this utility model is provided.

[0133] like Figures 1 to 5As shown, the cooking appliance of this utility model includes a lid 200 and a pot body 100. The pot body 100 is used for cooking food, and the lid 200 is used to cover the pot body 100. For example, the lid 200 is connected to the pot body 100 in an openable and closable manner to cover the pot body 100. When the lid 200 covers the pot body 100, a cooking space is formed between the lid 200 and the pot body 100. Optionally, when the lid 200 covers the pot body 100, the lid 200 is sealed to the inner pot 110.

[0134] The pot body 100 is typically a rounded rectangular parallelepiped shape and has a cylindrical inner pot 110 for storage. The pot body 100 includes the inner pot 110, which can be freely placed into or removed from the inner pot 110 storage section for easy cleaning. The inner pot 110 is typically made of metal and is used to hold materials to be heated, such as rice or soup. The pot body 100 also includes a middle plate 120 and a base 130. The middle plate 120 is located at the top of the pot body 100, and the base 130 is located on the sides and bottom of the pot body 100. The middle plate 120 is fixedly mounted to the base 130.

[0135] To reduce heat loss during cooking, the pot body 100 also includes a heat insulation cover 140 disposed on the outer periphery of the inner pot 110. The heat insulation cover 140 is fitted onto the outer periphery of the inner pot 110 and is located between the inner pot 110 and the base 130.

[0136] The cover 200 includes a top cover, a liner 220, and a removable cover 210. The top cover is located on the outermost side of the cover 200, forming the outer shell of the cover 200. The liner 220 is located below the top cover and is connected to it. For example, the liner 220 can be connected to the top cover by fasteners or snaps. The top cover and the liner 220 constitute the upper cover assembly. The upper cover assembly is mainly used to centrally mount various functional components of the cover 200 that sense and control the working status of the cooking appliance, such as sensors. The removable cover 210 is located on the innermost side of the cover 200 and is located below the liner 220. The removable cover 210 is detachably connected to the liner 220, for example by snaps, for easy cleaning and replacement. The removable cover 210 is oriented towards the cooking space, that is, when the cover 200 is in the closed position, the removable cover 210 is directly above the cooking space.

[0137] In this design, the lid 200 is provided with a fastening element 300. The fastening element 300 can engage with the edge of the inner pot 110 or the edge of the insulation cover 140. For example, in a rice cooker, the fastening element 300 can engage with the edge of the inner pot 110. For example, in an electric pressure cooker, the edge of the insulation cover 140 is at least partially exposed, and the fastening element 300 can engage with the edge of the insulation cover 140. For ease of explanation, the following description will focus on the example of the fastening element 300 engaging with the edge 111 of the inner pot 110.

[0138] Reference Figures 6 to 7 Figures 6 to 7 , in some embodiments of the present utility model, the fastening member 300 includes an upper fastening portion 310, a lower fastening portion 330 and an intermediate portion 320. The upper fastening portion 310 and the lower fastening portion 330 are respectively connected to the upper and lower ends of the intermediate portion 320, and both the upper fastening portion 310 and the lower fastening portion 330 extend towards the center line direction of the cooking appliance. The fastening member 300 forms a structure similar to a "匚" shape, so as to be able to form a certain clamping space. The fastening member 300 is fastened to the inner pot 110 through the clamping space, so that the cover body 200 and the inner pot 110 are tightly connected. In the state where the fastening member 300 is in the fastening position, the upper fastening portion 310 can generate a downward pulling force on the cover body 200, and the lower fastening portion 330 can generate an upward pulling force on the cooker body 100, thereby improving the stability of the connection between the cover body 200 and the cooker body 100 and ensuring good sealing performance during pressure cooking. Optionally, the upper fastening portion 310 is movably connected to the lining cover 220, and the lower fastening portion 330 can be selectively connected to or disengaged from the inner pot l10 to switch between the locking position and the unlocking position.

[0139] Reference Figure 2 And Figure 4 <000, the cooking appliance further includes a rotating rack 400 and a driving member. Optionally, the rotating rack 400 rotates under the drive of the driving member. The driving member can be but not limited to a driving motor. The output shaft of the driving motor can be connected to the rotating rack 400 through a transmission member to drive the rotating rack 400 to rotate. The rotation of the rotating rack 400 can drive the fastening member 300 to move, so as to realize the locking and unlocking between the cover body 200 and the cooker body 100. The driving mechanism of the fastening member 300 by the rotating rack 400 will be described below. [[ID=!2]]

[0140] The fastening member 300 and the rotating rack 400 are connected by a transmission column 340. In the prior art, the transmission column 340 is welded to the fastening member 300. When the transmission column 340 is welded to the fastening member 300, there is a thin weld seam on the outer edge where the transmission column 340 is docked with the fastening member 300, and the welding strength is low. In the limit stress state, it is easy to break at the welding position. During the use of the cooking appliance, the fastening member 300 will be subjected to frequent locking and unlocking operations under the transmission of the rotating rack 400, and this repeated stress action will also exacerbate the fatigue damage of the docking part of the transmission column 340 and the fastening member 300. Therefore, only through welding connection for fixation, the connection strength between the transmission column 340 and the fastening member 300 is low.

[0141] The fastening member 300 also includes a fixing member 350. The fastening member 300 has a mounting hole 3101 extending vertically. Specifically, the mounting hole 3101 is located in the upper fastening portion 310. The fixing member 350 includes a head 351 and a rod-shaped extension 352 passing through the mounting hole 3101. The drive column 340 includes a first end and a second end arranged opposite to each other along its length. The first end is provided with a connecting cap 360 for connecting to a cooking appliance, specifically, the connecting cap 360 is connected to the rotating frame 400. Optionally, the fastening member 300 can be suspended from the rotating frame 400 via the connecting cap 360. The second end connects to the rod-shaped extension 352 of the fixing member 350 to connect to the upper fastening portion 310. The head 351 of the fixing member 350 and the drive column 340 are located on different sides of the fastening member 300. The fastening element 300 is clamped between the head 351 of the fixing element 350 and the transmission post 340. Specifically, the upper fastening portion 310 is clamped between the head 351 of the fixing element 350 and the transmission post 340, thereby limiting the fastening element 300 along its length. In this solution, the fixing element 350, the transmission post 340, and the fastening element 300 form a reliable connection, which can significantly improve the overall connection strength of the fastening element 300. Optionally, the fixing element 350 can be constructed as a screw, bolt, rivet, or pin. The connection methods between the fixing element 350 and the transmission post 340 include, but are not limited to, threaded connection, riveting connection, and interference fit. The fixing element 350 and the transmission post 340 form a nested connection structure, which, compared to a single weld, has higher connection strength and better fatigue resistance, can withstand greater locking and unlocking forces, and extends the service life of the component. When the connection method between the fixing element 350 and the transmission post 340 is a threaded connection, disassembly and replacement can be made easier. If the drive column 340 or the fastener 300 is damaged, the damaged part can be easily removed for replacement or repair simply by loosening the connection between the fastener 350 and the drive column 340 or the fastener 300, thus improving maintenance efficiency.

[0142] Optionally, the drive column 340 is provided with a connecting hole 3401 extending along its length, and a rod-shaped extension 352 is connected to the connecting hole 3401. The shape and size of the connecting hole 3401 should match the rod-shaped extension 352 of the fastener 350 to ensure that the two can be tightly nested together. The nested connection between the connecting hole 3401 of the drive column 340 and the rod-shaped extension 352 of the fastener 350 can more effectively resist the forces and torques generated during locking and unlocking, preventing loosening or failure after long-term use. Optionally, the rod-shaped extension 352 is designed with external threads, and the connecting hole 3401 is designed with internal threads; the fastener 350 and the drive column 340 are connected together by threads. Optionally, the rod-shaped extension 352 can be connected to the connecting hole 3401 by a press-fit, for example, the rod-shaped extension 352 and the connecting hole 3401 are riveted or interference-fitted.

[0143] In some embodiments of this utility model, the upper engaging portion 310 has a first side facing downwards and a second side facing upwards, arranged oppositely in the vertical direction. The first side faces the inner pot 110, and the second side faces the rotating frame 400. The first side is provided with a mounting portion 311 recessed towards the second side to form a recessed platform structure. A mounting hole 3101 is formed in the mounting portion 311, and the head 351 of the fastener 350 is accommodated within the mounting portion 311. Optionally, the fastener 350 does not protrude from the outer surface of the first side. The mounting portion 311 provides an additional space for the head 351 of the fastener 350, which ensures that even when the engaging member 300 moves, the head 351 of the fastener 350 will not contact or interfere with other parts, thereby ensuring the reliability of the movement of the engaging member 300.

[0144] Optionally, the mounting hole 3101 is located in the middle of the upper engaging portion 310. This ensures that the forces between the connecting post 340 and the upper engaging portion 310 are relatively balanced. Correspondingly, the mounting portion 311 is formed in the middle of the upper engaging portion 310.

[0145] Optionally, the mounting portion 311 is constructed with one or more stepped levels. The one or more stepped levels provide more precise assembly space for the connection between the fastener 300 and the fixing member 350, while also increasing the strength of the fastener 300. Along the vertical direction, the center of the mounting portion 311 is closer to the drive column 340 than its edge. Optionally, when the mounting portion 311 is constructed with multiple stepped levels, the head 351 is located at the central step of the mounting portion 311. Optionally, when the mounting portion 311 is constructed with multiple stepped levels, the depth of each step is 1.5-2 mm. Optionally, the forming method of the mounting portion 311 includes, but is not limited to, stretch forming and stamping. The multi-step design facilitates the forming of the fastener and enhances its strength.

[0146] Optionally, the mounting portion 311 is adapted to the shape of the head 351. This adaptation ensures that the fastener 350 is accurately positioned on the snap-fit ​​member 300 during assembly, avoiding errors and deviations during the assembly process. Optionally, the surface of the mounting portion 311 that mates with the head 351 can typically be a plane or a tapered structure matching the shape of the head 351.

[0147] Optionally, a shim 390 is provided between the mounting part 311 and the head 351. The shim 390 can adjust the gap between the mounting part 311 and the head 351 of the fastener 350 to ensure a tight and stable fit between them.

[0148] Optionally, the fixing member 350 and the fastening member 300 are bonded together. Specifically, the head 351 and the fastening member 300 are bonded together using screw-fixing adhesive. Optionally, the fixing member 350 is bonded together with the transmission column 340. Specifically, the rod-shaped extension 352 is bonded together with the transmission column 340. The bonded connection forms an anti-loosening structure, preventing the fixing member 350 from loosening from the transmission member and the fastening member 300 after prolonged use, or preventing accidental unscrewing by the consumer, which could lead to a safety accident.

[0149] Optionally, the depth of the mounting part 311 is 1-10mm. The depth range of 1-10mm can adapt to different application scenarios and assembly requirements. The depth of the mounting part 311 can be, but is not limited to, 1mm, 1.5mm, 2mm, 3mm, 4mm, 6mm, 8mm, 10mm, etc.

[0150] Optionally, the mounting portion 311 protrudes from the outer surface of the second side, forming a boss structure. The protrusion of the mounting portion 311 on the second side can increase the structural strength of the fastener 300, enabling it to withstand greater external forces. At the same time, the protrusion of the mounting portion 311 on the second side also provides a mounting platform for the transmission column 340.

[0151] Based on the above embodiment, the transmission column 340 is welded to the fastening member 300. Specifically, the transmission column 340 is welded to the upper fastening part 310. By welding the transmission column 340 and the fastening member 300 together via the fixing member 350, the advantages of both connection methods can be fully utilized to form a more robust and reliable connection structure.

[0152] Based on the above embodiments, the transmission column 340 and the upper fastening part 310 can also be in an abutting fit. Compared with other complex connection methods, the abutting fit simplifies the assembly process and reduces assembly difficulty and cost. Optionally, at least one of the transmission column 340, the upper fastening part 310, and the connection between the transmission column 340 and the upper fastening part 310 is provided with an anti-slip part 312. The anti-slip part 312 can increase the friction between the transmission column 340 and the fastening member 300, thereby preventing rotation or slippage caused by vibration or impact during transmission. Optionally, the transmission column 340 is provided with an anti-slip part 312, which is adapted to abut against the upper fastening part 310. Optionally, the upper fastening part 310 is provided with an anti-slip part 312, which is adapted to abut against the transmission column 340. Optionally, an anti-slip part 312 is provided between the transmission column 340 and the upper fastening part 310, and the anti-slip part 312 is adapted to abut against the transmission column 340 and the upper fastening part 310 respectively.

[0153] In some embodiments of this utility model, the fixing member 350 is a bolt. During assembly, the transmission column 340 may rotate with the fixing member 350, which may easily lead to the fixing member 350 not being properly assembled. The anti-slip part 312 also facilitates the assembly of the fixing member 350 and improves assembly efficiency.

[0154] When the anti-slip part 312 is disposed on the transmission column 340, the anti-slip part 312 is constructed as a protrusion protruding outward from the outer surface of the transmission column 340, or as a groove recessed inward from the outer surface of the transmission column 340. When the anti-slip part 312 is disposed on the upper fastening part 310, the anti-slip part 312 is constructed as a protrusion protruding outward from the outer surface of the upper fastening part 310, or as a groove recessed inward from the outer surface of the upper fastening part 310. The shape of the anti-slip part 312 can be, but is not limited to, dot-shaped, strip-shaped, mesh-shaped, or spiral-shaped. The anti-slip part 312 can be evenly distributed on the outer surface of the fastening member 300, or it can be non-uniformly distributed depending on the force applied. In some embodiments, the height difference between the anti-slip part 312 and the outer surface of the second side is 0.01-2 mm. The height difference between the anti-slip part 312 and the outer surface of the second side can be, but is not limited to, 0.01mm, 0.5mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, etc. Within the range of 0.01-2mm, sufficient anti-slip effect can be ensured without causing assembly difficulties or damage to the surface of the transmission column 340 due to excessive height difference. Optionally, the anti-slip part 312 is integrally stamped during the stamping process of the fastener 300, which is low in cost and has stable and reliable dimensions.

[0155] When the anti-slip part 312 is disposed between the transmission column 340 and the upper fastening part 310, the anti-slip part 312 is constructed as an anti-slip pad. Optionally, the anti-slip pad can be, but is not limited to, a rubber anti-slip pad or a plastic pad. Optionally, the anti-slip pad is provided with protrusions or grooves.

[0156] In this design, the connecting hole 3401 extends through the length of the transmission column 340. At least a portion of the connecting cap 360 extends into the connecting hole 3401. As described above, the rod-shaped extension 352 extends from the second end of the transmission column 340 into the connecting hole 3401. The connecting cap 360 and the rod-shaped extension 352 cooperate to fill the interior of the transmission column 340, and the transmission column 340, connecting cap 360, and rod-shaped extension 352 cooperate to jointly withstand the effects of external loads and vibrations. Optionally, the connecting cap 360 and the rod-shaped extension 352 may abut or be spaced apart within the connecting hole 3401. Abutting arrangement provides a tighter connection, while a spaced arrangement can reduce friction and wear to some extent, while allowing for a certain degree of relative movement. When the connecting cap 360 and the rod-shaped extension 352 completely fill the connecting hole 3401, the overall strength of the transmission column 340 is good, it is not easy to break, and it is easy to check whether the assembly result is qualified.

[0157] Optionally, the connecting cap 360 is threadedly connected to the drive column 340. The threaded connection allows for fine-tuning of the connecting cap 360 along its length on the drive column 340. When different fasteners 350 are connected to the drive column 340, the extension depth of the rod-shaped extension 352 within the connecting hole 3401 may differ. The threaded connection between the connecting cap 360 and the drive column 340 allows the connecting cap 360 to be adjusted to accommodate rod-shaped extensions 352 of varying lengths.

[0158] In this design, the outer diameter of the drive column 340 is greater than or equal to 5 mm. The outer diameter of the drive column 340 can be, but is not limited to, 5 mm, 5.5 mm, 6 mm, 8 mm, 10 mm, etc. As a key component for transmitting power and torque, the diameter of the drive column 340 directly affects its load-bearing capacity. A larger diameter provides greater structural strength and can accommodate larger diameter fasteners 350, thereby further strengthening the overall strength of the assembly and significantly improving its reliability and durability.

[0159] As mentioned above, the fastening element 300 is connected to the rotating frame 400 via the transmission column 340.

[0160] Optionally, the rotating frame 400 and the drive unit are positioned above the cover 220. The fastening element 300 is positioned below the cover 220.

[0161] The rotating frame 400 is provided with a transmission hole 410 corresponding to the transmission column 340, and the cover 220 has a connecting groove 221 that extends vertically. The transmission column 340 is slidably connected to the transmission hole 410 and slidably connected to the connecting groove 221. When the rotating frame 400 rotates, the transmission column 340 moves within the transmission hole 410 and is guided by the connecting groove 221, so that the fastener 300 moves between a locked position and an unlocked position. The engagement of the transmission hole 410 and the connecting groove 221 converts the rotational motion of the rotating frame 400 into the linear motion of the fastener 300.

[0162] The connecting groove 221 moves in the same direction as the fastener 300. The drive column 340 extends from below the cover 220 to above the cover 220 via the connecting groove 221, so that the fastener 300 is suspended from the cover 220 and moves along the connecting groove 221 under the drive of the rotating frame 400. The suspended connection method greatly simplifies the assembly structure between the fastener 300 and the cover 220.

[0163] The rotating frame 400 allows multiple fastening elements 300 to operate simultaneously. Optionally, the fastening elements 300 can move along a straight line perpendicular to the central axis of the lid 200 to lock or unlock the edge 111 of the inner pot 110, providing a simple and flexible locking and unlocking method. Understandably, the direction of movement of the fastening elements 300 may intersect or be opposite to the central axis of the lid 200. In this design, the fastening elements 300 can move radially along the removable lid 210, meaning their direction of movement intersects with the central axis of the removable lid 210. During cooking, when it is necessary to lock the lid 200 and the pot body 100, the driving element actuates, generating a driving force. This force is transmitted to the fastening elements 300 via the rotating frame 400, causing them to move towards the center of the pot body 100. When the fastening elements 300 reach the appropriate position, they securely lock the lid 200 and the pot body 100 together. Optionally, when the fastening member 300 is in the locked position, it can engage with the edge 111 of the inner pot 110. When the lid 200 needs to be opened, the drive unit drives the rotating frame 400 to move in the opposite direction, causing the fastening member 300 to move away from the center of the pot body 100. When the fastening member 300 moves to the appropriate position, it disengages from the pot body 100, allowing the lid 200 to open, and the fastening member 300 is in the unlocked position. In this design, the radial direction of the removable lid 210 is the same as the radial direction of the inner pot 110. The movement of the fastening member 300 along the radial direction of the inner pot 110 ensures that the fastening member 300 applies pressure evenly during engagement, enhancing the stability between the lid 200 and the pot body 100.

[0164] Optionally, the fastening member 300 also includes a slider 370 and an elastic member 380. The slider 370 is sleeved on the transmission post 340 and is used to connect to the connecting groove 221. Both the slider 370 and the fastening member 300 are located on the side of the cover 220 facing the pot body 100. The elastic member 380 is located between the slider 370 and the fastening member 300. Optionally, the elastic member 380 is sleeved on the transmission post 340. The combined use of the slider 370 and the elastic member 380 makes the up-and-down movement of the fastening member 300 more stable, enabling more reliable fastening or opening, while optimizing the force distribution and reducing stress concentration and localized wear. Optionally, the elastic member 380 is connected to the mounting part 311, which can limit the movement of the elastic member 380.

[0165] As described above, the upper engaging portion 310 is provided with a mounting portion 311. Optionally, the elastic member 380 is engaged with the mounting portion 311. As described above, along the vertical direction, the central step is closer to the transmission column 340 than the edge steps, and the elastic member 380 can be engaged with the edge step which is farther from the slider 370, thereby satisfying the requirements for the mounting space and compression space of the elastic member 380. Optionally, when the mounting portion 311 is constructed as a multi-step structure, the elastic member 380 is engaged with the edge step of the mounting portion 311.

[0166] In some embodiments of this utility model, the fastening members 300 are evenly distributed along the circumference of the cover 200. The number of fastening members 300 is 2-6. Optionally, the number of fastening members 300 can be 2, 3, 4, 5, or 6, preferably 4. The even distribution of the fastening members 300 along the circumference of the cover 200, through reasonable arrangement of their number and angle, can maximize the use of the space at the edge of the cover 200, so that the fastening members 300 and the fixing members 350 can meet functional requirements without appearing crowded, ensuring that the cover 200 is subjected to uniform pressure and support when closed, thereby improving stability.

[0167] In one embodiment, during installation, the fastening component 300 of this solution first clamps the upper fastening part between the transmission column 340 and the fixing component 350 through the cooperation of the transmission column 340 and the fixing component 350, making them a whole. The upper end of the transmission column 340 extends above the rotating frame 400 through the connecting groove 221 and the transmission hole 410 in sequence. The connecting cap 360 is connected to the extension end of the transmission column 340, so that the fastening component 300 is suspended as a whole on the rotating frame 400.

[0168] In another embodiment, the connecting cap 360 is first connected to the transmission column 340. The lower end of the transmission column 340 is provided with a transmission hole 410 and a connecting groove 221, allowing the transmission column 340 to be suspended to the rotating frame 400 via the connecting cap 360. Then, the upper fastening part is clamped between the transmission column 340 and the fixing member 350 through the cooperation between the transmission column 340 and the fixing member 350.

[0169] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0170] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this utility model to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A fastening element for cooking utensils, characterized in that, The fastening member is movably disposed on the cooking appliance between a locked position and an unlocked position, and the fastening member includes: The upper and lower fastening parts are provided, wherein the upper fastening part is provided with a mounting hole that extends through in the vertical direction; A fastener, the fastener comprising a head and a rod-shaped extension passing through the mounting hole, the radial dimension of the head being larger than the radial dimension of the mounting hole; A transmission column, located above the upper fastening portion, includes a first end and a second end arranged opposite to each other along its length. The first end is provided with a connecting cap for connecting to the cooking utensil, and the second end is connected to the rod-shaped extension of the fixing member to connect to the upper fastening portion. The transmission column is provided with a connecting hole extending along its length, and the rod-shaped extension is connected to the connecting hole. The head of the fastener and the transmission column are located on different sides of the upper fastening portion.

2. The fastening element according to claim 1, characterized in that, The connecting hole extends along the length of the transmission column; At least a portion of the connecting cap extends into the connecting hole, and the connecting cap abuts against or is spaced apart from the rod-shaped extension within the connecting hole.

3. The fastening element according to claim 2, characterized in that, The connecting cap is connected to the transmission column by a thread.

4. The fastening element according to claim 1, characterized in that, The outer diameter of the transmission column is greater than or equal to 5 mm.

5. The fastening element according to claim 1, characterized in that, The mounting hole is located in the middle of the upper fastening part, and / or The fastening component also includes a middle portion, and the upper fastening portion and the lower fastening portion are respectively connected to the upper and lower ends of the middle portion.

6. The fastening member according to any one of claims 1 to 5, characterized in that, The fastener is constructed of screws, bolts, rivets, or pins; and / or The upper fastening part abuts against the transmission column, or the upper fastening part is welded to the transmission column.

7. The fastening member according to any one of claims 1 to 5, characterized in that, The upper fastening portion has a first side facing downward and a second side facing upward. The first side is provided with a mounting portion recessed towards the second side. The mounting hole is formed in the mounting portion, and the head of the fastener is accommodated in the mounting portion.

8. The fastening element according to claim 7, characterized in that, The mounting section is constructed as a single-level or multi-level stepped structure; and / or Along the vertical direction, the center of the mounting portion is closer to the drive column than its edge; and / or When the mounting part is constructed as a multi-step structure, the depth of each step is 1.5-2mm.

9. The fastening element according to claim 7, characterized in that, The fastener must meet at least one of the following conditions: The fastener does not protrude from the outer surface of the first side; The mounting portion is adapted to the shape of the head; A gasket is provided between the mounting part and the head; The head is bonded to the upper fastening part; The rod-shaped extension is bonded to the transmission column; The depth of the mounting portion is 1-10mm; The mounting portion protrudes from the outer surface of the second side.

10. The fastening member according to any one of claims 1 to 5, characterized in that, The upper fastening portion has a second side facing upwards, and the fastening member satisfies at least one of the following conditions: The second side is provided with an anti-slip part, which is adapted to abut against the transmission column; The transmission column is provided with an anti-slip part, which is adapted to abut against the second side; An anti-slip part is provided between the second side and the transmission column, and the anti-slip part is adapted to abut against the second side and the transmission column respectively.

11. The fastening element according to claim 10, characterized in that, The fastener must meet at least one of the following conditions: When the anti-slip part is provided on the second side or the transmission column, the anti-slip part is constructed as a protrusion protruding outward from the outer surface of the second side / or the transmission column; When the anti-slip part is provided on the second side or the transmission column, the anti-slip part is constructed as a groove recessed inward from the outer surface of the second side / or the transmission column; When the anti-slip part is disposed between the second side and the transmission column, the anti-slip part is constructed as an anti-slip pad.

12. The fastening element according to claim 10, characterized in that, The fastener must meet at least one of the following conditions: When the anti-slip part is disposed on the second side, the height difference between the anti-slip part and the outer surface of the second side is 0.01-2mm; When the anti-slip part is provided on the transmission column, the height difference between the anti-slip part and the outer surface of the transmission column is 0.01-2mm.

13. The fastening element according to any one of claims 1 to 5, characterized in that, The fastening component also includes: A slider, the slider being fitted over the drive column, the slider being used to connect to the lid of the cooking appliance; and An elastic element is located between the slider and the upper fastening portion.

14. The fastening element according to claim 13, characterized in that, The upper fastening part has a second side facing upward, and the upper fastening part is provided with a mounting part protruding from the outer surface of the second side, and the elastic member is connected to the mounting part.

15. A cooking utensil, characterized in that, include: The pot body includes a snap-fit ​​edge; A lid, the lid comprising a liner and an inner lid, the inner lid being located on the side of the liner facing the pot body; as well as According to any one of claims 1 to 14, the connecting cap is movably suspended from the liner along a straight direction perpendicular to the central axis of the cover body, the upper fastening portion is adapted to fasten with the inner cover, and the lower fastening portion is adapted to fasten with the fastening edge.

16. The cooking utensil according to claim 15, characterized in that, The cooking appliance includes a rotating rack, which is provided with a transmission hole; The liner is provided with a connecting groove; The transmission column is slidably connected to the transmission hole and slidably connected to the connecting groove. When the rotating frame rotates, the transmission column moves within the transmission hole and is guided by the connecting groove to drive the fastening member to move.

17. The cooking utensil according to claim 16, characterized in that, The rotating frame and the fastening member are located on different sides of the liner, and the radial dimension of the end of the connecting cap is greater than the width of the transmission hole.

18. The cooking utensil according to claim 16, characterized in that, The fastening component also includes a slider, which is sleeved on the transmission column. The slider is used to connect to the connecting groove, and both the slider and the fastening component are located on the side of the cover facing the pot body.

19. The cooking utensil according to claim 15, characterized in that, The pot body includes a pot inner and a heat-insulating cover, and the fastening edge is formed on the pot inner or the heat-insulating cover; wherein... The fastening element is movable in the radial direction of the inner pot.

20. The cooking utensil according to any one of claims 15 to 19, characterized in that, The fastening component also includes a middle portion, and the upper fastening portion and the lower fastening portion are respectively connected to the upper and lower ends of the middle portion, and both the upper fastening portion and the lower fastening portion extend toward the center line of the cooking appliance.

21. The cooking utensil according to any one of claims 15 to 19, characterized in that, The fasteners are evenly distributed around the circumference of the cover; and / or The number of fasteners is 2-6; and / or The drive columns of the multiple fasteners are connected to the same rotating frame.

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