A cooking appliance

Abstract

This application discloses a cooking appliance, including a pot body and a pot lid hinged to the pot body via a rotating shaft. The top of the pot lid is provided with a hinge seat, and the hinge seat is provided with a mounting groove. The mounting groove includes two opposing side walls. A first mounting hole and a second mounting hole are coaxially arranged in the mounting groove. The distance between the side wall and the adjacent first or second mounting hole is less than the axial length of the rotating shaft. The diameter of the first mounting hole is larger than the diameter of the second mounting hole, so that the rotating shaft can be tilted and inserted into the first mounting hole and moved axially along the second mounting hole to be inserted into the second mounting hole. At least one limiting member is provided in the mounting groove. The limiting member is embedded in the first mounting hole and / or the second mounting hole. The end of the rotating shaft is inserted into the limiting member to limit the shaking of the rotating shaft along the radial direction of the first and second mounting holes. This application can ensure the stability of opening and closing the lid during the frequent opening and closing of the cooking appliance and reduce collisions and friction between the rotating shaft and the hole wall of the mounting hole.

Description

Technical Field

[0001] This application belongs to the field of household appliance technology, specifically relating to a cooking appliance. Background Technology

[0002] Existing cooking appliances, such as stir-fry machines, flip-top air fryers, and rice cookers, generally consist of a pot body and a lid. The lid is hinged to the pot body via a pivot to open or close the cooking cavity inside the pot. The rear end of the lid has a first and a second pivot hole arranged opposite each other, and the pivot is installed in both holes. There are typically two ways to install the pivot: one is to insert the pivot from one side of the first pivot hole along the axial direction of both holes, pass it through the first pivot hole, and then continue moving it along the axial direction of both holes to insert it into the second pivot hole. This method requires sufficient distance on one side of the lid for the pivot to pass through the first pivot hole. To meet this distance requirement, a through hole is usually made at the rear end of the lid for the pivot to pass through. After the pivot is installed in the preset position, the through hole is blocked with a decorative cover. This design, on the one hand, compromises the integrity of the lid, resulting in a poor visual experience for the user. On the other hand, the number of structural components increases the cost significantly. Another method is to tilt one end of the pivot shaft and insert it obliquely into the first shaft hole from the opposite inner side of the first and second shaft holes. Then, the pivot shaft is swung to be parallel to the axis of the first and second shaft holes and moved laterally so that the other end of the pivot shaft is inserted into the second shaft hole. Since the outer diameter of the pivot shaft is roughly matched with the inner diameter of the first and second shaft holes, this assembly method requires force to squeeze one end of the pivot shaft into the first shaft hole when inserting the pivot shaft obliquely, which makes the installation difficult, the assembly efficiency low, and easily causes the first shaft hole to deform.

[0003] Chinese patent document CN215838433U discloses a lid for a cooking utensil. The lid has a first axial hole and a second axial hole. The diameter of the first axial hole is larger than that of the second axial hole. The wall of the first axial hole includes a long guide surface that is radially inclined within the first axial hole. The long guide surface extends from the insertion side of the first axial hole near the second axial hole toward the inside of the hole and is located at least at the bottom portion of the first axial hole. The lid includes a pivot shaft. A first end of the pivot shaft is inserted into the first axial hole via the guidance of the long guide surface, and a second end of the pivot shaft is inserted into the second axial hole. This technical solution, by means of the guiding effect of the long guide surface, allows the inclined pivot shaft to be easily inserted into the first axial hole from the inside, and then the pivot shaft can be directly inserted axially into the second axial hole. However, due to the large diameter of its first shaft hole, the gap between the end of the pivot shaft and the wall of the first shaft hole is too large. During the long-term repeated opening and closing of the lid, the fit between the pivot shaft and the first shaft hole is not tight, which will cause the lid to shake, affecting the stability and sealing of the lid after it is closed. Moreover, the diameter of the second shaft hole is small, and the pivot shaft is confined to the second shaft hole. During the long-term repeated opening and closing of the lid, the pivot shaft and the second shaft hole are prone to loosening due to wear, which will further aggravate the shaking of the lid. In addition, the difference in diameter between the first shaft hole and the second shaft hole causes uneven stress on the pivot shaft itself. The end of the pivot shaft in the first shaft hole has a larger gap, while the other end of the pivot shaft in the second shaft hole is more firmly supported, which will lead to local stress concentration. Over time, this will easily accelerate the deformation of the pivot shaft, the first shaft hole and the second shaft hole, affecting the service life, thus affecting the opening and closing process of the lid. Utility Model Content

[0004] This application provides a cooking appliance to solve the technical problem in the existing cooking appliance where the lid and body are hinged together. When the lid uses two shaft holes with different diameters for mounting a pivot shaft, and one of the shaft holes has an inclined long guide surface to guide the insertion process of the pivot shaft, the pivot shaft does not fit tightly and stably with the shaft hole with the larger diameter during installation and use. This causes the pivot shaft to wobble in the shaft hole when the cooking appliance is frequently opened and closed, affecting the stability of opening and closing the lid.

[0005] The technical solution adopted in this application is as follows: A cooking appliance includes a pot body and a lid hinged to the pot body via a pivot. The lid has a hinge seat with a mounting groove. The mounting groove includes two opposing sidewalls. A first mounting hole and a second mounting hole are coaxially arranged within the mounting groove. The distance between the sidewall and the adjacent first or second mounting hole is less than the axial length of the pivot. The diameter of the first mounting hole is larger than the diameter of the second mounting hole, allowing the pivot to be tilted into the first mounting hole and moved axially along the second mounting hole to be inserted into the second mounting hole. At least one limiting member is provided within the mounting groove, the limiting member being embedded in the first and / or second mounting holes, and the end of the pivot is inserted into the limiting member.

[0006] In this application, the distance between the sidewall of the mounting groove and the adjacent first or second mounting hole is less than the axial length of the shaft. This means that, without a through hole in the sidewall for the shaft to pass through, the shaft lacks the technical basis to complete assembly by sequentially passing through the first and second mounting holes circumferentially from the outside of the sidewall. However, this eliminates the need for the through hole, ensuring the integrity of the sidewall and avoiding the need for additional decorative or sealing components to close the through hole. This helps maintain the uniformity of the hinge's appearance and reduces costs. Under this technical premise, the diameter of the first mounting hole in this application is larger than the diameter of the second mounting hole. This allows the shaft to be inserted obliquely into the first mounting hole and then aligned to axially pass into the second mounting hole during assembly. The entire assembly process reduces the requirement for axial operating space, making operation convenient and quick, and improving assembly efficiency. Furthermore, the mounting groove of this application is equipped with at least one limiting member, which is embedded in the first mounting hole and / or the second mounting hole. The end of the rotating shaft is inserted into the limiting member to restrict the shaking of the rotating shaft along the radial direction of the first and second mounting holes. On the one hand, this ensures the stability of opening and closing the lid during frequent opening and closing of the cooking appliance, improving the user experience. On the other hand, it reduces collisions and friction between the rotating shaft and the walls of the first and second mounting holes, extending their respective service lives. In addition, the limiting member provides a clear positioning position for the end of the rotating shaft, ensuring that the rotating shaft can be accurately inserted to the predetermined depth and position, avoiding assembly problems caused by the rotating shaft being inserted too shallowly or too deeply, and further ensuring the stability of the assembly quality.

[0007] The insertion end of the first mounting hole and / or the insertion end of the second mounting hole are provided with an inclined guide structure for inserting the rotating shaft.

[0008] Regardless of whether it's the first or second mounting hole, if the insertion end is shaped to perfectly match the outer contour of the shaft end, the assembler needs to pay close attention to align the shaft end with the insertion end during assembly, increasing assembly difficulty and significantly reducing efficiency. This technical solution addresses this by providing an inclined guide structure at the insertion end of the first and / or second mounting holes to guide the shaft into the mounting hole. This reduces the precision required for the shaft's insertion angle and position during assembly, and also reduces the time spent by assemblers searching for the appropriate angle and position. Even if the assembler's operation is not precise enough, the shaft can gradually adjust its posture and accurately enter the mounting hole under the influence of the inclined guide structure, reducing assembly difficulty and significantly improving assembly efficiency.

[0009] At least one fixing member is provided in the mounting groove. The fixing member is located on the side of the limiting member facing away from the rotating shaft, and the fixing member abuts against the limiting member to restrict the movement of the limiting member along the axial direction of the rotating shaft.

[0010] To allow the limiting component to embed into the first and / or second mounting holes, the distance between the sidewall of the mounting groove and the first and / or second mounting holes must be greater than the thickness of the limiting component. This ensures sufficient operating space between the sidewall of the mounting groove and the first and / or second mounting holes for the embedding operation. After the limiting component is embedded, a redundant space exists between the limiting component and the sidewall. During long-term use, if the limiting component loosens due to vibration, impact, or other factors, this redundant space provides room for the limiting component to move axially along the mounting holes, potentially leading to detachment, shaft displacement, and failure. The fixing component in this technical solution effectively restricts the movement of the limiting component along the shaft's axial direction, ensuring it remains in the correct position during use. This provides stable support and limiting for the shaft, preventing axial movement and improving the stability and reliability of the lid's opening and closing.

[0011] The mounting groove is provided with a connector, and the connector and the limiting member are staggered along the front-back direction of the mounting groove. The fixing member is inserted and fixed to the connector along the up-down direction.

[0012] There are various ways to assemble fasteners in the mounting slot. However, the assembly method of the shaft in this application means that the distance between the sidewall and the limiting component will inevitably be limited during the design process. Therefore, the assembly method and angle of the fastener must take into account the distance between the limiting component and the sidewall. In this technical solution, the connector and the limiting component are staggered along the front-back direction of the mounting slot. This avoids interference between the limiting component and the connector when the connector is inserted into the first mounting hole and / or the second mounting hole, ensuring smooth insertion of the limiting component. The connector also provides an installation position for the fastener. The fastener is inserted and fixed to the connector in the vertical direction. During assembly, the operating space requirement comes from the vertical direction rather than the horizontal direction. This operating method reduces the requirement for horizontal space, i.e., the axial space of the shaft, which is well adapted to the reality of limited axial space between the sidewall and the limiting component. Moreover, the vertical insertion method is simple to operate and does not require complicated tools and processes. The assembler only needs to align the fastener with the insertion position of the connector and apply a certain pressure to complete the fixation, reducing assembly difficulty and time cost. Furthermore, the staggered arrangement of the connectors and limiting components, as well as the plug-in fixing method of the fasteners in this technical solution, enable each component to be rationally arranged within a limited space, improving the utilization rate of the space in the mounting slot and providing more space for the installation or functional expansion of other components in the mounting slot.

[0013] The distance between the inner wall surface of the sidewall and the limiting member is less than or equal to the thickness of the fixing member, and the fixing member is interference-fitted between the sidewall and the limiting member.

[0014] The fastener is inserted into the connector in the vertical direction. The connector provides basic displacement restriction for the fastener in the left-right direction. To provide more directions, such as front-back and vertical, the connector and fastener need more complex designs, or other structures within the mounting groove are needed to assist in positioning the fastener. This undoubtedly increases design costs, manufacturing costs, and fitting difficulty. This technical solution designs the distance between the inner wall surface of the sidewall and the limiting component to be less than or equal to the thickness of the fastener. This allows the fastener to tightly fill the gap between the sidewall and the limiting component, forming a firm connection. This tight fit effectively prevents the fastener from loosening or shifting during use. It not only simplifies the structural design of the connector and fastener and reduces costs, but also ensures that the limiting component is always stably axially restricted by the fastener, thereby improving the stability and reliability of the entire assembly structure.

[0015] The limiting member includes a limiting part and a stop part connected to the limiting part and extending upward and / or downward. The limiting part is embedded in the first mounting hole and / or the second mounting hole. A bracket is provided in the mounting groove. The first mounting hole and the second mounting hole are provided in the bracket. The stop part abuts against the bracket to restrict the movement of the limiting member along the axial direction of the rotating shaft.

[0016] If the limiting component only includes a portion that can be inserted into the first and / or second mounting holes, it is difficult to determine the position of the limiting component within the mounting holes during assembly. In other words, the distance the limiting component moves into the mounting holes is difficult to control. If it moves too deep, the limiting component will cause the rotating shaft to move axially along the mounting hole, resulting in it coming out of the mounting hole. If it moves too shallow, the contact area between the end of the rotating shaft and the limiting component will be small, leading to unstable shaft installation. This technical solution designs the limiting component to include both a limiting part that can be inserted into the mounting hole and a stop part that can abut against the bracket. During the assembly process, when the stop part abuts against the bracket, it provides the assembler with a clear assembly position and reference, facilitating accurate installation of the limiting component and avoiding the drawbacks caused by the limiting part being inserted too deep or too shallow, thus improving assembly accuracy and efficiency. Furthermore, the mutual abutment between the stop and the bracket can limit the axial movement of the limiting component towards the mounting hole side, ensuring the stability of the limiting component during use and improving the stability and reliability of the pot lid opening and closing.

[0017] The outer peripheral surface of the insertion end of the limiting member is provided with a first guide slope. The first guide slope has a free end and a fixed end away from the free end. The first guide slope extends from the fixed end toward the free end toward the axis close to the rotating shaft, so that the outer periphery of the insertion end of the limiting member is conical.

[0018] The limiting component needs to be embedded into the first mounting hole and / or the second mounting hole. If the outer circumferential surface of the insertion end of the limiting component has the same shape as the inner circumferential surface of the mounting hole, the assembler needs to pay sufficient attention to align the insertion end of the limiting component with the mounting hole during the embedding assembly process. This increases the assembly difficulty and significantly reduces the assembly efficiency. This technical solution provides a first guiding slope on the outer circumferential surface of the insertion end of the limiting component, making the outer circumference of the insertion end of the limiting component conical. This allows the limiting component to quickly contact the entrance of the mounting hole during embedding and guides the insertion end of the limiting component smoothly into the mounting hole. Even if there is a certain angular or positional deviation during assembly, the first guiding slope can automatically adjust the posture of the limiting component, gradually aligning it with the axis of the mounting hole, thereby reducing the assembly difficulty. Moreover, the pointed cone-shaped first guide slope makes the initial contact area between the insertion end of the limiting member and the mounting hole small. As the limiting member is gradually inserted, the contact area gradually increases. This progressive contact method can effectively reduce the frictional resistance of the limiting member during the insertion process, making the assembly process smoother and reducing assembly difficulties or jamming caused by excessive friction.

[0019] The limiting member has a limiting slot, and the end of the rotating shaft is inserted into the limiting slot. The insertion end of the limiting member has a second guiding slope, which forms part of the inner wall of the limiting slot. The second guiding slope extends obliquely from the inside of the limiting slot to the outside of the limiting slot in a direction away from the axis of the limiting slot, so that the insertion end of the limiting slot has an flared structure from the inside to the outside.

[0020] The end of the rotating shaft needs to be inserted into the limiting slot. If the shape of the insertion end of the limiting slot matches the outer contour of the rotating shaft end, the assembler needs to pay sufficient attention to align the rotating shaft end with the insertion end of the limiting slot during assembly and insertion to ensure smooth insertion, which increases assembly difficulty and significantly reduces assembly efficiency. This technical solution designs the insertion end of the limiting slot as a flared structure, with its second guiding slope tilting outwards from the inner side of the limiting slot away from the axis. This structure provides excellent guidance for the rotating shaft end to enter the limiting slot. Even if there is a certain angular or positional deviation between the rotating shaft end and the limiting slot, the flared structure can still guide the rotating shaft end smoothly into the limiting slot, eliminating the need for fine-tuning the angle and position of the rotating shaft and reducing assembly difficulty. Moreover, the flared structure makes the entrance of the limiting slot relatively wide, resulting in a smaller initial contact area between the rotating shaft end and the inner wall of the limiting slot, thus reducing initial frictional resistance during insertion. As the insertion depth increases, the contact area gradually increases and tends to stabilize, making the assembly process smoother and reducing jamming.

[0021] The limiting member is provided and is embedded in the first mounting hole. The diameter of the second mounting hole is adapted to the rotating shaft so that the pot lid rotates synchronously with the rotating shaft.

[0022] The diameter of the first mounting hole is larger than that of the second mounting hole. If the diameter of the second mounting hole is much larger than that of the rotating shaft, there will be a large redundant space between the rotating shaft and the inner walls of both the first and second mounting holes after assembly, which could cause the rotating shaft to wobble. Appropriate constraints need to be set at both the first and second mounting holes to keep the rotating shaft in a preset position, which would increase the number of structural components and raise costs. This technical solution sets the diameter of the second mounting hole to match the rotating shaft, allowing the rotating shaft to receive rigid support within the second mounting hole. The limiting component is embedded in the first mounting hole, locking the side of the rotating shaft that extends into the first mounting hole. This mutually complementary method allows for more symmetrical constraints at both ends of the rotating shaft, reducing the risk of stress concentration caused by large gaps on one side. This extends the service life of the rotating shaft, the first mounting hole, and the second mounting hole, and allows the lid to rotate synchronously with the rotating shaft, avoiding lid wobble caused by fit gaps, thus improving the stability and reliability of the lid's opening and closing.

[0023] The hinge seat includes a cover plate for covering the mounting groove. The cover plate is provided with a limiting rib extending downward to enter the mounting groove. The limiting rib is located on the side of the second mounting hole away from the first mounting hole, and the limiting rib can abut against the rotating shaft to limit the axial movement of the rotating shaft.

[0024] The assembly process of the rotating shaft involves first inserting it into the first mounting hole, then moving it axially into the second mounting hole. The distance the rotating shaft moves axially affects its final assembly position. If the axial movement is too large, one side of the rotating shaft will detach from the first mounting hole, resulting in assembly failure. If the axial movement is too small, the rotating shaft will be inserted too shallowly into the second mounting hole, affecting its stability during use. In this technical solution, the limiting stop rib provides a clear positioning reference for the rotating shaft, ensuring that it can be accurately inserted into the predetermined position during assembly, improving assembly accuracy and stability. Moreover, during use, the limiting stop rib's abutment against the rotating shaft effectively restricts its axial movement, improving the stability of the lid during rotation. Furthermore, the limiting stop rib extends downwards from the cover plate, eliminating the need for additional components or complex structures, making the entire hinge seat more compact and saving space. Attached Figure Description

[0025] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an exploded view of a cooking appliance according to one embodiment of this application; Figure 2 This is a rear view of a portion of the structure of a cooking appliance without the limiting member installed, according to one embodiment of this application. Figure 3 for Figure 2 Enlarged view of part A; Figure 4 This is a partially enlarged view of the hinge seat and the rotating shaft after assembly according to one embodiment of this application.

[0026] in, 1. Pot body; 2. Pot lid; 21. Hinge seat; 211. Side wall; 212. Bottom plate; 213. Cover plate; 2131. Limiting rib; 22. Bracket; 221. First mounting hole; 222. Second mounting hole; 3. Shaft; 4. Limiting component; 41. Limiting part; 411. First guide slope; 412. Second guide slope; 42. Stop part; 5. Connectors; 6. Fasteners. Detailed Implementation

[0027] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. It should be noted that, unless otherwise specified, the embodiments of this application and the features thereof can be combined with each other.

[0029] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0032] like Figures 1 to 4 As shown, a cooking appliance includes a pot body 1 and a pot lid 2 hinged to the pot body 1 via a rotating shaft 3. The pot lid 2 is provided with a hinge seat 21, and the hinge seat 21 is provided with a mounting groove. The mounting groove includes two opposing side walls 211. A first mounting hole 221 and a second mounting hole 222 are coaxially arranged in the mounting groove. The distance L1 between the side wall 211 and the adjacent first mounting hole 221 or second mounting hole 222 is less than the axial length L2 of the rotating shaft 3. The diameter of the first mounting hole 221 is larger than the diameter of the second mounting hole 222, so that the rotating shaft 3 can be tilted into the first mounting hole 221 and moved axially along the second mounting hole 222 to be inserted into the second mounting hole 222. At least one limiting member 4 is provided in the mounting groove. The limiting member 4 is embedded in the first mounting hole 221 and / or the second mounting hole 222. The end of the rotating shaft 3 is inserted into the limiting member 4.

[0033] like Figure 1The illustration shows a specific example of a stir-fry machine as the cooking appliance, but the cooking appliance in this application is not limited to this; it can also be a flip-top air fryer, a steam rice cooker with top air intake, etc. When the cooking appliance is a stir-fry machine, the mounting groove of the hinge base 21 can be equipped with components such as a motor for driving the stirring spatula to rotate. When the cooking appliance is a flip-top air fryer, the mounting groove of the hinge base can be equipped with components such as a motor for driving the fan in the hot air assembly. When the cooking appliance is a steam rice cooker with top air intake, the mounting groove of the hinge base can be equipped with components such as a gas supply pipe for supplying steam to the steam rod.

[0034] In this application, the hinge seat 21 can be located at the top of the pot lid 2 or at the rear of the pot lid 2. The rear of the pot lid 2 refers to the side opposite to the side that is commonly used by the user in actual application.

[0035] In this application, the distance between the sidewall 211 of the mounting groove and the adjacent first mounting hole 221 or second mounting hole 222 is less than the axial length of the rotating shaft 3. This means that, without a through hole in the sidewall 211 for the rotating shaft 3 to pass through, the rotating shaft 3 lacks the technical basis to complete assembly by sequentially passing through the first mounting hole 221 and the second mounting hole 222 circumferentially from the outside of the sidewall 211. However, this eliminates the need for the through hole in the sidewall 211, ensuring its integrity and avoiding the need for additional decorative or sealing components to close the through hole. This helps maintain the uniformity of the hinge seat 21's appearance and reduces costs. Under this technical premise, the diameter of the first mounting hole 221 is larger than the diameter of the second mounting hole 222. This allows the rotating shaft 3 to be inserted obliquely into the first mounting hole 221 and then aligned to axially pass into the second mounting hole 222 during assembly. The entire assembly process reduces the requirement for axial operating space, making operation convenient and quick, and improving assembly efficiency. Furthermore, the mounting groove of this application is provided with at least one limiting member 4, which is embedded in the first mounting hole 221 and / or the second mounting hole 222. The end of the rotating shaft 3 is inserted into the limiting member 4 to limit the shaking of the rotating shaft 3 in the radial direction along the first mounting hole 221 and the second mounting hole 222. On the one hand, this ensures the stability of opening and closing the lid during frequent opening and closing of the cooking appliance, improving the user experience. On the other hand, it reduces collisions and friction between the rotating shaft 3 and the hole walls of the first mounting hole 221 and the second mounting hole 222, extending their respective service lives. In addition, the setting of the limiting member 4 provides a clear positioning position for the end of the rotating shaft 3, ensuring that the rotating shaft 3 can be accurately inserted to the predetermined depth and position, avoiding assembly problems caused by the rotating shaft 3 being inserted too shallowly or too deeply, and further ensuring the stability of the assembly quality.

[0036] It should be noted that the specific configuration of the mounting slot in this application can adopt any of the following embodiments: Implementation method one: such as Figure 1 As shown, in addition to having two oppositely arranged side walls 211, the hinge seat 21 also has a base plate 212 that connects the two side walls 211. The base plate 212 and the two oppositely arranged side walls 211 cooperate to form an installation groove.

[0037] Implementation Method 2: This implementation method is not illustrated. In this implementation method, the hinge seat has only two oppositely arranged side walls. The top wall of the pot lid and the two side walls cooperate to form an installation groove.

[0038] The structural design of the first mounting hole and the second mounting hole in this application can adopt any of the following embodiments: Implementation Method 3: For example Figure 2 and Figure 3 As shown, the inner wall surface of the insertion end of the first mounting hole 221 and / or the inner wall surface of the insertion end of the second mounting hole 222 are regular flat structures.

[0039] Implementation Method 4: This implementation method 4 is not illustrated. In this implementation method 4, the insertion end of the first mounting hole and / or the insertion end of the second mounting hole are provided with an inclined guide structure for guiding the insertion of the rotating shaft.

[0040] The insertion ends of the first and second mounting holes refer to the sides of the shaft that allow the shaft to pass through, relative to the exiting side, during the assembly process. Regardless of whether it's the first or second mounting hole, if the insertion end is shaped to perfectly match the outer contour of the shaft end, the assembler needs to pay sufficient attention to align the shaft end with the insertion end during assembly, increasing assembly difficulty and significantly reducing efficiency. This fourth embodiment addresses this by providing an inclined guide structure at the insertion ends of the first and / or second mounting holes to guide the shaft insertion. This guides the shaft smoothly into the mounting holes, reducing the precision requirements for the shaft insertion angle and position during assembly. It also reduces the time spent by assemblers searching for the appropriate insertion angle and position. Even if the assembler's operation is not precise, the shaft can gradually adjust its posture and accurately enter the mounting hole under the influence of the inclined guide structure, reducing assembly difficulty and significantly improving assembly efficiency.

[0041] When assembling the shaft, it is necessary to first insert it into the first mounting hole and then into the second mounting hole. Since the diameter of the first mounting hole is relatively large, the difficulty of aligning the shaft end with the first mounting hole is relatively small. Therefore, as a preferred embodiment of this fourth embodiment, the insertion end of the second mounting hole is provided with an inclined guide structure for guiding the shaft into the hole, so as to reduce the difficulty of aligning the shaft with the second mounting hole.

[0042] The inclined guide structure can be, for example, a conical surface. When the shaft is inserted obliquely into the first mounting hole and / or the second mounting hole, the conical surface can fit against it in the direction of the shaft's inclination, gradually guiding the shaft to move along the axial direction of the mounting hole so that the shaft can smoothly enter the shaft hole. In the subsequent axial movement process, it plays a continuous guiding and correcting role, and finally achieves the fixation of the shaft 3 in the mounting hole.

[0043] To enable the limiting member 4 to be embedded in the first mounting hole 221 and / or the second mounting hole 222, the distance between the side wall 211 of the mounting groove and the first mounting hole 221 and / or the second mounting hole 222 must be greater than the thickness of the limiting member 4. This ensures sufficient operating space between the side wall 211 of the mounting groove and the first mounting hole 221 and / or the second mounting hole 222 for the embedding of the limiting member 4. After the limiting member 4 is embedded in the first mounting hole 221 and / or the second mounting hole 222, there will be redundant space between the limiting member 4 and the side wall 211. During long-term use, when the limiting member 4 becomes loose due to vibration, impact, or other factors, the existence of this redundant space provides space for the limiting member 4 to move along the axial direction of the mounting hole, thereby causing the limiting member 4 to fall off, the rotating shaft 3 to shift and fail. Therefore, in a preferred embodiment of this application, at least one fixing member is also provided in the mounting groove. The fixing member is located on the side of the limiting member 4 facing away from the rotating shaft 3, and the fixing member abuts against the limiting member 4 to restrict the movement of the limiting member 4 along the axial direction of the rotating shaft 3. The fixing member effectively restricts the movement of the limiting member 4 along the axial direction of the rotating shaft 3, ensuring that the limiting member 4 always remains in the correct position during use, thereby providing stable support and limiting effect for the rotating shaft 3, preventing the rotating shaft 3 from moving in the axial direction, and improving the stability and reliability of the opening and closing of the pot lid 2.

[0044] The structure and installation position of the fastener in this embodiment can be any one of the following embodiments: Example 1: This example is not illustrated. In this example, the hinge seat further includes a cover plate for opening or closing the mounting groove. The cover plate has a downwardly extending limiting rib that extends into the mounting groove. The limiting rib is located on the side of the limiting member facing away from the rotating shaft, and the limiting rib abuts against the limiting member to restrict the axial movement of the limiting member along the rotating shaft. In this example, the limiting rib constitutes a fixing member. Furthermore, the limiting rib and the cover plate are integrally formed.

[0045] Example 2: In this Example 2, the fastener is an independent component. The fastener can be assembled into the mounting groove by means of screw connection, snap-fit, or magnetic engagement, and abuts against the limiting component 4.

[0046] There are various ways to assemble the fasteners in the mounting slots, but the assembly method of the rotating shaft 3 in this application means that the distance between the side wall 211 and the limiting member 4 will inevitably not be too large during the relevant design. Therefore, the assembly method and assembly angle of the fasteners need to comprehensively consider the distance between the limiting member 4 and the side wall 211. Therefore, as a preferred example under this embodiment 2, such as Figure 1 As shown, a connector 5 is provided in the mounting groove. The connector 5 and the limiting member 4 are staggered along the front-back direction of the mounting groove. The fixing member 6 is inserted and fixed to the connector 5 in the vertical direction. In this example, the connector 5 and the limiting member 4 are staggered along the front-back direction of the mounting groove, which can avoid interference between the limiting member 4 and the connector 5 when the limiting member 4 is assembled and inserted into the first mounting hole 221 and / or the second mounting hole 222, ensuring the smooth insertion of the limiting member 4. The connector 5 also provides an installation position for the fixing member 6. The fixing member 6 is inserted and fixed to the connector 5 in the vertical direction. During assembly, the operating space requirement comes from the vertical direction rather than the horizontal direction. This operation method reduces the requirement for the horizontal space, that is, the axial space of the rotating shaft 3. It is well in line with the reality of the limited axial space between the side wall 211 and the limiting member 4. Moreover, the vertical insertion method is simple to operate and does not require complicated tools and processes. The assembler only needs to align the fixing member 6 with the insertion position of the connector 5 and apply a certain pressure to complete the fixation, reducing the assembly difficulty and time cost. Moreover, the staggered arrangement of the connector 5 and the limiting member 4, as well as the plug-in fixing method of the fixing member 6 in this example, enable each component to be rationally arranged in a limited space, improve the utilization rate of the space in the mounting slot, and provide more space for the installation or functional expansion of other components in the mounting slot.

[0047] The fastener 6 is inserted into the connector 5 along the vertical direction. The connector 5 provides basic displacement restriction for the fastener 6 in the left-right direction. To provide more directions, such as front-back or vertical, the connector 5 and fastener 6 need more complex designs, or the fastener 6 needs to be positioned using other structures within the mounting groove. This would undoubtedly increase design costs, manufacturing costs, and fitting difficulties. Therefore, as a preferred option, such as... Figure 4 As shown, the distance between the inner wall surface of the side wall 211 and the limiting member 4 is less than or equal to the thickness of the fixing member 6. The fixing member 6 is interference-fitted between the side wall 211 and the limiting member 4. By designing the distance between the inner wall surface of the side wall 211 and the limiting member 4 to be less than or equal to the thickness of the fixing member 6, the fixing member 6 can be tightly filled in the gap between the side wall 211 and the limiting member 4, forming a firm connection. This tight fit can effectively prevent the fixing member 6 from loosening or shifting during use. This not only simplifies the structural design of the connector 5 and the fixing member 6 and reduces costs, but also ensures that the limiting member 4 is always under stable axial restraint through the fixing member 6, thereby improving the stability and reliability of the entire assembly structure.

[0048] The structure of the limiting member in this application can adopt any of the following embodiments: Implementation Method 5: This implementation method 5 is not illustrated. In this implementation method 5, the limiting member includes a limiting part that can be embedded in the first mounting hole and / or the second mounting hole. The limiting part is provided with a limiting slot with one end open and the other end closed. The end of the rotating shaft is inserted into the limiting slot.

[0049] Implementation method six: such as Figure 1 and Figure 4 As shown, the limiting member 4 includes a limiting part 41 and a stop part 42 connected to the limiting part 41 and extending upward and / or downward. The limiting part 41 is embedded in a first mounting hole 221 and / or a second mounting hole 222. A bracket 22 is provided in the mounting groove. The first mounting hole 221 and the second mounting hole 222 are provided in the bracket 22. The stop part 42 abuts against the bracket 22 to limit the movement of the limiting member 4 along the axial direction of the rotating shaft 3. In this embodiment, the limiting member 4 is designed to include both a limiting part 41 that can be embedded in the mounting hole and a stop part 42 that can abut against the bracket 22. This allows the stop part 42 to abut against the bracket 22 during the assembly process of the limiting member 4, providing the assembler with a clear assembly position and reference, facilitating the accurate installation of the limiting member 4, avoiding the drawbacks caused by the limiting part 41 being embedded too deeply or too shallowly, and improving assembly accuracy and efficiency. Furthermore, the mutual abutment between the stop part 42 and the bracket 22 can limit the axial movement of the limiting part 4 towards the mounting hole side, ensuring the stability of the limiting part 4 during use and improving the stability and reliability of the opening and closing of the pot lid 2.

[0050] To facilitate the insertion of the limiting member into the first mounting hole and / or the second mounting hole, this application may adopt any of the following embodiments: Embodiment Seven: This embodiment seven is not illustrated. In this embodiment seven, the insertion end (referring to the end into which the limiting member is moved during the assembly process) of the first mounting hole and / or the second mounting hole for the insertion of the limiting member is provided with an inclined guide surface. During the assembly process, the limiting member is gradually inserted into the first mounting hole and / or the second mounting hole under the guidance of the inclined guide surface.

[0051] Implementation method eight: such as Figure 4As shown, the outer peripheral surface of the insertion end of the limiting member 4 is provided with a first guide slope 411. The first guide slope 411 has a free end and a fixed end away from the free end. The first guide slope 411 extends from the fixed end toward the free end in a direction close to the axis of the rotating shaft 3, so that the outer peripheral surface of the insertion end of the limiting member 4 is conical. In this embodiment eight, the insertion end of the limiting member 4 refers to the end that first contacts the first mounting hole 221 and / or the second mounting hole 222 into which it is to be inserted during the assembly process. The limiting member 4 needs to be inserted into the first mounting hole 221 and / or the second mounting hole 222. If the outer peripheral surface of the insertion end of the limiting member 4 is consistent with the shape of the inner peripheral surface of the mounting hole, then during the insertion assembly of the limiting member 4, the assembler needs to pay sufficient attention to the alignment between the insertion end of the limiting member 4 and the mounting hole to successfully insert the limiting member 4 into the mounting hole, which increases the assembly difficulty and significantly reduces the assembly efficiency. This embodiment of the eighth method provides a first guiding slope 411 on the outer peripheral surface of the insertion end of the limiting member 4, making the outer periphery of the insertion end of the limiting member 4 conical. This allows the limiting member 4 to quickly contact the entrance of the mounting hole during insertion and guides the insertion end of the limiting member 4 smoothly into the mounting hole. Even if there is a certain angular or positional deviation during assembly, the first guiding slope 411 can automatically adjust the posture of the limiting member 4, gradually aligning it with the axis of the mounting hole, thereby reducing assembly difficulty. Moreover, the conical first guiding slope 411 results in a small initial contact area between the insertion end of the limiting member 4 and the mounting hole. As the limiting member 4 is gradually inserted, the contact area gradually increases. This progressive contact method effectively reduces the frictional resistance of the limiting member 4 during insertion, making the assembly process smoother and reducing assembly difficulties or jamming caused by excessive friction.

[0052] To facilitate the insertion of the end of the rotating shaft into the limiting member, this application may employ any of the following embodiments: Implementation Method Nine: This implementation method nine is not illustrated. In this implementation method nine, the outer surface of the end of the rotating shaft is provided with a guide slope. The guide slope makes the outer diameter of the end of the rotating shaft smaller than the outer diameter of the rest of the rotating shaft. The length of the guide slope is smaller than the overall length of the limiting member inserted into the end of the rotating shaft. This facilitates both the fitting of the limiting member onto the outside of the end of the rotating shaft and the tight fit of the two after assembly.

[0053] Implementation Method 10: (e.g.) Figure 4As shown, the limiting member 4 has a limiting slot, and the end of the rotating shaft 3 is inserted into the limiting slot. The insertion end of the limiting member 4 has a second guiding slope 412, which forms part of the inner wall of the limiting slot. The second guiding slope 412 extends inclined from the inside of the limiting slot to the outside of the limiting slot in a direction away from the axis of the limiting slot, so that the insertion end of the limiting slot has a flared structure from the inside to the outside. The end of the rotating shaft 3 needs to be inserted into the limiting slot. If the shape of the insertion end of the limiting slot matches the outer contour of the end of the rotating shaft 3, then during the assembly and insertion of the rotating shaft 3, the assembler needs to pay sufficient attention to align the end of the rotating shaft 3 with the insertion end of the limiting slot to insert the rotating shaft 3 smoothly, which increases the assembly difficulty and significantly reduces the assembly efficiency. In this embodiment, by designing the insertion end of the limiting slot as a flared structure, and its second guiding slope 412 inclined from the inside of the limiting slot to the outside in a direction away from the axis, this structure provides a good guiding effect for the end of the rotating shaft 3 to enter the limiting slot. Even if there is a certain angular or positional deviation between the end of the rotating shaft 3 and the limiting slot, the flared structure can guide the end of the rotating shaft 3 smoothly into the limiting slot, eliminating the need for assembly personnel to finely adjust the angle and position of the rotating shaft 3, thus reducing assembly difficulty. Moreover, the flared structure makes the entrance of the limiting slot relatively wide, and the initial contact area between the end of the rotating shaft 3 and the inner wall of the limiting slot is small, thereby reducing the initial frictional resistance during insertion. As the insertion depth increases, the contact area gradually increases and tends to stabilize, making the assembly process smoother and reducing jamming.

[0054] This application does not limit the correspondence between the diameter of the second mounting hole 222 and the outer diameter of the rotating shaft 3. It can adopt any of the following embodiments: Implementation method eleven: as follows Figure 4As shown, a limiting member 4 is provided, and the limiting member 4 is embedded in the first mounting hole 221. The diameter of the second mounting hole 222 is adapted to the rotating shaft 3 so that the pot lid 2 rotates synchronously with the rotating shaft 3. The diameter of the first mounting hole 221 is larger than the diameter of the second mounting hole 222. If the diameter of the second mounting hole 222 is much larger than the diameter of the rotating shaft 3, there will be a large redundant space between the rotating shaft 3 and the inner wall surfaces of the first mounting hole 221 and the second mounting hole 222 after assembly, which will cause the rotating shaft 3 to wobble. Corresponding constraints need to be set at the first mounting hole 221 and the second mounting hole 222 respectively to keep the rotating shaft 3 in the preset position. This will increase the number of structural components and the cost. In this eleventh embodiment, the diameter of the second mounting hole 222 is set to be compatible with the rotating shaft 3, so that the rotating shaft 3 can be rigidly supported within the second mounting hole 222. The limiting member 4 is embedded in the first mounting hole 221, which can lock the side of the rotating shaft 3 that extends into the first mounting hole 221. This mutual cooperation allows the two ends of the rotating shaft 3 to form a more symmetrical constraint, reducing the risk of stress concentration caused by a large gap on one side. This not only extends the service life of the rotating shaft 3, the first mounting hole 221, and the second mounting hole 222, but also allows the pot lid 2 to rotate synchronously with the rotating shaft 3, avoiding the pot lid 2 from shaking due to the fit gap, thus improving the stability and reliability of the opening and closing of the pot lid 2.

[0055] The assembly process of the rotating shaft 3 involves first inserting it into the first mounting hole 221, and then moving it axially to insert it into the second mounting hole 222. The axial movement distance of the rotating shaft 3 affects its final assembly position. If the axial movement distance is too large, one side of the rotating shaft 3 will come out of the first mounting hole 221, resulting in assembly failure. If the axial movement distance is too small, the rotating shaft 3 will be inserted too shallowly into the second mounting hole 222, affecting the stability of the rotating shaft 3 during use. Therefore, as a preferred embodiment of this eleventh embodiment, such as... Figure 4 As shown, the hinge seat 21 includes a cover plate 213 for covering the mounting groove. The cover plate 213 has a limiting rib 2131 extending downward to enter the mounting groove. The limiting rib 2131 is located on the side of the second mounting hole 222 away from the first mounting hole 221, and the limiting rib 2131 can abut against the rotating shaft 3 to limit the axial movement of the rotating shaft 3. In this embodiment, the setting of the limiting rib 2131 provides a clear positioning reference for the rotating shaft 3, ensuring that the rotating shaft 3 can be accurately inserted into the predetermined position during assembly, thus improving assembly accuracy and stability. Moreover, during use, the abutting action between the limiting rib 2131 and the rotating shaft 3 can effectively limit the axial movement of the rotating shaft 3, improving the stability of the pot lid 2 during rotation. In addition, the limiting rib 2131 is formed by the downward extension of the cover plate 213, eliminating the need for additional components or complex structures, making the entire hinge seat 21 more compact and saving space.

[0056] Implementation Method Twelve: This implementation method twelve is not illustrated. In this implementation method twelve, compared to the above-mentioned adaptation assembly of the second mounting hole and the rotating shaft, the diameter of the second mounting hole in this implementation method twelve is much larger than the outer diameter of the rotating shaft. The term "much larger" means that after the rotating shaft is assembled, if there is no limiting member, there will be a space for movement between the rotating shaft and the inner wall surface of the second mounting hole, allowing the rotating shaft to rotate freely relative to the pot lid. Therefore, in this implementation method, the limiting member needs to be embedded in at least one of the first mounting hole and the second mounting hole to prevent the rotating shaft from rotating freely relative to the pot lid.

[0057] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0058] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0059] The above descriptions are merely embodiments of this application and are not intended to limit this application. The technical features or structures in the foregoing different embodiments can be arbitrarily combined to form other specific technical solutions as needed. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.

Claims

1. A cooking utensil, comprising a pot body and a lid hinged to the pot body via a pivot, characterized in that, The pot lid is provided with a hinge seat, the hinge seat is provided with a mounting groove, the mounting groove includes two oppositely arranged sidewalls, the mounting groove is provided with a first mounting hole and a second mounting hole arranged coaxially, the distance between the sidewall and the adjacent first mounting hole or second mounting hole is less than the axial length of the rotating shaft, the diameter of the first mounting hole is larger than the diameter of the second mounting hole, so that the rotating shaft can be tilted into the first mounting hole and moved axially along the second mounting hole to be inserted into the second mounting hole, the mounting groove is provided with at least one limiting member, the limiting member is embedded in the first mounting hole and / or the second mounting hole, and the end of the rotating shaft is inserted into the limiting member.

2. A cooking utensil according to claim 1, characterized in that, The insertion end of the first mounting hole and / or the insertion end of the second mounting hole are provided with an inclined guide structure for inserting the rotating shaft.

3. A cooking utensil according to claim 1, characterized in that, At least one fixing member is provided in the mounting groove. The fixing member is located on the side of the limiting member facing away from the rotating shaft, and the fixing member abuts against the limiting member to restrict the movement of the limiting member along the axial direction of the rotating shaft.

4. A cooking utensil according to claim 3, characterized in that, The mounting groove is provided with a connector, and the connector and the limiting member are staggered along the front-back direction of the mounting groove. The fixing member is inserted and fixed to the connector along the up-down direction.

5. A cooking utensil according to claim 4, characterized in that, The distance between the inner wall surface of the sidewall and the limiting member is less than or equal to the thickness of the fixing member, and the fixing member is interference-fitted between the sidewall and the limiting member.

6. A cooking utensil according to claim 1, characterized in that, The limiting member includes a limiting part and a stop part connected to the limiting part and extending upward and / or downward. The limiting part is embedded in the first mounting hole and / or the second mounting hole. A bracket is provided in the mounting groove. The first mounting hole and the second mounting hole are provided in the bracket. The stop part abuts against the bracket to restrict the movement of the limiting member along the axial direction of the rotating shaft.

7. A cooking utensil according to claim 1, characterized in that, The outer peripheral surface of the insertion end of the limiting member is provided with a first guide slope. The first guide slope has a free end and a fixed end away from the free end. The first guide slope extends from the fixed end toward the free end toward the axis close to the rotating shaft, so that the outer periphery of the insertion end of the limiting member is conical.

8. A cooking utensil according to claim 1 or 7, characterized in that, The limiting member has a limiting slot, and the end of the rotating shaft is inserted into the limiting slot. The insertion end of the limiting member has a second guiding slope, which forms part of the inner wall of the limiting slot. The second guiding slope extends obliquely from the inside of the limiting slot to the outside of the limiting slot in a direction away from the axis of the limiting slot, so that the insertion end of the limiting slot has an flared structure from the inside to the outside.

9. A cooking utensil according to claim 1, characterized in that, The limiting member is provided and is embedded in the first mounting hole. The diameter of the second mounting hole is adapted to the rotating shaft so that the pot lid rotates synchronously with the rotating shaft.

10. A cooking utensil according to claim 9, characterized in that, The hinge seat includes a cover plate for covering the mounting groove. The cover plate is provided with a limiting rib extending downward to enter the mounting groove. The limiting rib is located on the side of the second mounting hole away from the first mounting hole, and the limiting rib can abut against the rotating shaft to limit the axial movement of the rotating shaft.

Images