Cover assembly and cooking appliance

Abstract

This utility model provides a lid assembly and a cooking utensil, wherein the lid assembly includes: a lid; a transmission structure movably inserted into the lid; and a nozzle disposed on the transmission structure or the lid and capable of moving with the transmission structure; wherein, when the transmission structure moves, it can drive the nozzle to retract into the lid or extend out of the lid. The technical solution of this application effectively solves the problem of nozzles being difficult to clean in related technologies.

Description

Technical Field

[0001] This utility model relates to the field of small household appliance technology, and more specifically, to a cover assembly and a cooking utensil. Background Technology

[0002] When cooking food, the lid of the cooking appliance can become contaminated by oil fumes, heat, and splattered food. The lid assembly in this technology includes a lid and a nozzle mounted on the lid. The lid has an open position and a closed position. When the lid is in the closed position, the nozzle can spray cleaning fluid to clean the contaminants on the lid.

[0003] However, since the nozzle is fixed to the cover, it is exposed outside the cover for a long time. Contaminants generated during cooking can easily accumulate on the nozzle, making it difficult to clean. Utility Model Content

[0004] The main purpose of this invention is to provide a cover assembly and a cooking appliance to solve the problem of the nozzle being difficult to clean in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cover assembly is provided, comprising: a cover; a transmission structure movably disposed within the cover; and a nozzle disposed on the transmission structure or the cover and capable of moving with the transmission structure; wherein, when the transmission structure moves, it can drive the nozzle to retract into the cover or extend out of the cover.

[0006] By applying the technical solution of this utility model, the aforementioned transmission structure can retract the nozzle into the lid when it is in motion, preventing the nozzle from being exposed outside the lid for extended periods. This reduces the accumulation of contaminants generated during cooking and makes the nozzle easier to clean. Therefore, the technical solution of this application effectively solves the problem of difficult-to-clean nozzles in related technologies. After cooking, the transmission structure can extend the nozzle out of the lid, facilitating cleaning of the lid. Furthermore, the process of the nozzle retracting into or extending from the lid does not require manual operation by the user; it is automatically performed by the transmission structure as needed, improving the automation level of the cooking appliance, simplifying user operation, and thus enhancing the user experience.

[0007] Furthermore, when the nozzle is mounted on the transmission structure, the cover includes a cover plate and a guide limiting member mounted on the cover plate. The transmission structure and the guide limiting member are either in a limiting or guiding engagement. When the transmission structure and the guide limiting member are in a guiding engagement, the movement of the transmission structure can retract the nozzle into or out of the guide limiting member. When the transmission structure and the guide limiting member are in a limiting engagement, the nozzle remains in the position retracted into the guide limiting member. Thus, because the transmission structure and the guide limiting member are in a guiding engagement, the guide limiting member can guide the movement of the transmission structure, allowing the movement of the transmission structure to smoothly retract the nozzle into or out of the guide limiting member.

[0008] Furthermore, the guide limiting component includes a first guide plate connected to the cover plate, a second guide plate spaced apart from the first guide plate, and a limiting plate connected to the first and second guide plates. The second guide plate is located inside the first guide plate, and the second and first guide plates form a guide channel. The transmission structure either guides the guide channel or limits the movement of the limiting plate. The design of the guide channel ensures smooth movement of the transmission structure within the guide limiting component, and the arrangement of the first and second guide plates makes the movement of the transmission structure more stable. The limiting plate allows the guide limiting component to stably limit the transmission structure, ensuring that the nozzle remains stably positioned within the guide limiting component.

[0009] Furthermore, the transmission structure includes a transmission cylinder, on which the nozzle is mounted. The transmission cylinder is movably positioned within a guide channel, and the transmission cylinder and guide channel are in a guiding engagement. The transmission cylinder can also engage with a limiting plate for positioning, and / or, it can support the guide channel. This guiding engagement between the transmission cylinder and guide channel facilitates a smoother and more efficient process for the nozzle to retract into or extend from the guide limiting member. After the cover is opened, the transmission cylinder and guide channel support each other to ensure the cover is stably held in its opened position.

[0010] Furthermore, the diameter of the transmission cylinder gradually decreases from the top to the bottom of the cover. When the cover is opened, the inner wall of the guide channel supports the transmission cylinder. The transmission cylinder is confined within the guide channel, ensuring that it will not loosen or slip out, effectively guaranteeing that the cover can be stably maintained in the opened position.

[0011] Furthermore, the transmission structure also includes a transmission arm connected to the transmission cylinder and a transmission cover covering the transmission arm and transmission cylinder. A portion of the transmission cover is connected to the transmission arm, and the remaining portion of the transmission cover abuts against the bottom of the transmission cylinder via an elastic element. The elastic element allows elastic forces to be applied to the remaining portion of the transmission cover and the bottom of the transmission cylinder respectively, ensuring the adaptability of the transmission structure during movement. It can absorb impacts and vibrations during movement, maintain smooth contact between the transmission cylinder and the guide channel, and thus ensure the smooth extension or retraction of the nozzle, improving the reliability of the nozzle's movement.

[0012] Furthermore, in the direction of the guiding cooperation between the transmission structure and the guide channel, there is a preset distance between the second guide plate and the cover to form a receiving space within the first guide plate. When the transmission structure moves, it can drive the nozzle to retract into the receiving space. The existence of the receiving space provides the nozzle with a position for retraction, avoiding contact between the nozzle and the cover, and preventing the surface of the cover from contaminating the nozzle. At the same time, during the cooking process, the nozzle is not directly exposed, reducing the accumulation of contaminants and facilitating the cleaning of the nozzle later.

[0013] Furthermore, the cover also includes a retaining ring, which is clamped onto the cover plate along with the guide limiting member. The interior of the retaining ring communicates with the interior of the guide limiting member to form a guide channel, and the transmission structure engages with the guide channel. The retaining ring facilitates fixing the guide limiting member to the cover plate. Simultaneously, the retaining ring extends the internal space of the guide limiting member, facilitating the formation of the guide channel and providing accurate guidance for the movement of the transmission structure, thus improving the accuracy of nozzle extension and retraction.

[0014] Furthermore, the portion of the transmission structure furthest from the cover is a hinge. As the transmission structure moves within the guide channel, it forms a preset trajectory line, which is an arc. This hinge allows the transmission structure to swing around its axis, and the arc-shaped guide channel provides a smooth, curved path for the transmission structure, reducing resistance during swing and enabling the nozzle to extend and retract more quickly and accurately, thus improving cleaning efficiency.

[0015] Furthermore, the transmission structure includes a transmission seat and a transmission cover connected to the transmission seat. The nozzle is mounted on the transmission seat, and a cavity is formed between the transmission seat and the transmission cover. The cover assembly also includes a liquid delivery pipe located within the cavity and connected to the nozzle. The transmission seat is movably mounted on a guide limiting member and can engage with the guide limiting member for either limiting or guiding. The side wall of the guide limiting member has a cut-out to avoid the transmission seat and transmission cover. The cavity provides sufficient space to accommodate the liquid delivery pipe. Moreover, the transmission cover can cover the transmission seat, making the liquid delivery pipe invisible from the outside of the transmission structure, thus serving an aesthetic purpose. In this way, after the end of the transmission seat passes through the cut-out into the guide limiting member, it can enter the guiding direction for guiding engagement with the guide limiting member, thereby realizing the installation of the transmission structure and enabling the transmission structure to engage with the guide limiting member for either guiding or limiting engagement.

[0016] According to another aspect of the present invention, a cooking appliance is provided, including a base and a cover assembly disposed on the base, the cover assembly being the cover assembly described above. The cooking appliance also includes a motor disposed on the base, the motor being capable of driving the transmission structure to move.

[0017] Furthermore, the base includes an outer shell, and the cooking appliance includes an inner pot disposed within the outer shell, a stirring structure rotatably disposed on the inner pot, and a water tank disposed on the outer shell, with the nozzle connected to the water tank. The cooking appliance also includes: an active transmission component, rotatably disposed on the base, with a motor drivingly connected to the active transmission component, the active transmission component having active teeth; and a driven transmission component, disposed on the transmission structure, the driven transmission component having driven teeth capable of meshing with the active teeth. The direct connection between the water tank and the nozzle ensures timely supply of cleaning fluid, improving the cleaning response speed and efficiency. Driven by the motor, the active and driven transmission components work together to drive the transmission structure, ensuring automated operation of the lid and nozzle, improving the intelligence level and ease of operation of the cooking appliance. Moreover, because the nozzle can retract into the lid, it prevents the nozzle from protruding outside the lid and scratching the rotating stirring structure. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A three-dimensional structural diagram of the nozzle retracting into the cover body according to an embodiment of the present invention is shown.

[0020] Figure 2A perspective view of the nozzle retracting into the cover assembly according to an embodiment of the present invention is shown.

[0021] Figure 3 It shows Figure 2 A three-dimensional structural diagram of the transmission cover assembly when disassembled from the transmission seat.

[0022] Figure 4 It shows Figure 2 A cross-sectional three-dimensional structural diagram of the nozzle of the cover assembly when it retracts into the cover.

[0023] Figure 5 It shows Figure 2 A cross-sectional view of the nozzle of the cover assembly retracting into the cover.

[0024] Figure 6 It shows Figure 2 A three-dimensional structural diagram of the nozzle of the cover assembly after being cut at another position when it retracts into the cover body;

[0025] Figure 7 A three-dimensional structural schematic diagram of an embodiment of the cover assembly according to the present invention is shown when the nozzle extends out of the cover.

[0026] Figure 8 It shows Figure 7 A cross-sectional view of the nozzle of the cover assembly extending out of the cover.

[0027] Figure 9 A three-dimensional structural schematic diagram of an embodiment of the cover assembly according to the present invention is shown when the nozzle extends out of the cover.

[0028] Figure 10 A three-dimensional structural diagram of an embodiment of the cooking appliance according to the present invention is shown with the nozzle retracted into the lid and the lid in the open position.

[0029] Figure 11 A perspective view of a cooking appliance according to the present invention is shown with the nozzle retracted into the lid and the lid in the open position.

[0030] Figure 12 A partial structural schematic diagram is shown of an embodiment of the cooking appliance according to the present invention when the nozzle is retracted into the lid and the lid is in the latched position.

[0031] Figure 13 It shows Figure 12 A three-dimensional structural diagram of the active transmission component of a cooking appliance.

[0032] The above figures include the following reference numerals:

[0033] 10. Cover body; 11. Cover plate; 12. Guide limiting component; 121. First guide plate; 122. Second guide plate; 123. Limiting plate; 124. Break; 13. Top cover; 131. Opening; 14. Fixing ring; 15. Guide channel;

[0034] 20. Transmission structure; 21. Transmission seat; 22. Transmission cover; 23. Transmission cylinder; 25. Transmission arm; 251. Hinge; 26. Accommodation space; 27. Cavity; 28. Elastic element;

[0035] 30. Nozzle; L1. Preset trajectory line;

[0036] 40. Liquid delivery pipe; 41. Driven transmission component; 411. Driven gear; 412. Driven shaft; 413. First gear; 414. Second gear; 42. Driven pair transmission component; 421. Driven pair gear; 43. Driven transmission component; 431. Driven gear;

[0037] 50. Substrate; 51. Outer shell; 52. Inner pot; 53. Stirring structure; 54. Water tank;

[0038] 60. Motor; 61. Rotating shaft. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0040] 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 this application. 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 features, steps, operations, devices, components, and / or combinations thereof.

[0041] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0042] like Figures 1 to 8 As shown, this application provides a cover assembly, which includes a cover 10, a transmission structure 20, and a nozzle 30. The transmission structure 20 is movably disposed on the cover 10. The nozzle 30 is disposed on the transmission structure 20 and can move with the transmission structure 20. When the transmission structure 20 is moving, it can drive the nozzle 30 to retract into the cover 10 or extend out of the cover 10.

[0043] The technical solution of the embodiment of the cover assembly, because the transmission structure 20 can retract the nozzle 30 into the cover 10 when it is active, avoids the nozzle 30 being exposed outside the cover 10 for a long time, reduces the accumulation of contaminants generated during cooking, and makes the nozzle 30 easier to clean. Therefore, the technical solution of the embodiment of the cover assembly effectively solves the problem of nozzles being difficult to clean in related technologies. After cooking, the transmission structure 20 can extend the nozzle 30 out of the cover 10 when it is active, facilitating cleaning of the cover 10. Furthermore, the process of the nozzle 30 retracting into or extending out of the cover 10 does not require manual operation by the user, but is automatically performed by the transmission structure 20 as needed, which can improve the automation level of the cooking appliance, simplify user operation, and thus improve the user experience. Of course, in other embodiments, the nozzle 30 is disposed on the cover 10.

[0044] It should be noted that "the nozzle 30 retracts into the cover 10" means that a portion of the nozzle 30 retracts into the cover 10, or the nozzle 30 may be completely retracted into the cover 10. "The nozzle 30 extends out of the cover 10" means that a portion of the nozzle 30 extends out of the cover 10, or the nozzle 30 may be completely extended out of the cover 10. In this embodiment, the nozzle 30 is a water-driven rotary nozzle, which facilitates the spraying of cleaning fluid using a water-driven rotary principle.

[0045] In this embodiment, the lid 10 has an open position and a closed position. When the transmission structure 20 is active, it drives the lid 10 to switch between the open position and the closed position. The switching between the open position and the closed position of the lid 10 is achieved by the movement of the transmission structure 20, which eliminates the need for manual operation by the user and also improves the automation level of the cooking appliance, further simplifying the user's operation.

[0046] like Figures 1 to 8 As shown, when the nozzle 30 is mounted on the transmission structure 20, the cover 10 includes a cover plate 11 and a guide limiting member 12 mounted on the cover plate 11. The transmission structure 20 and the guide limiting member 12 are either in a limiting or guiding engagement. Specifically, when the transmission structure 20 and the guide limiting member 12 are in a limiting engagement, the nozzle is held in a position retracted within the guide limiting member, and the transmission structure 20 drives the cover 10 to switch between an open and closed position. When the cover 10 is held in the closed position, and the transmission structure 20 and the guide limiting member 12 are in a guiding engagement, the movement of the transmission structure 20 can drive the nozzle 30 to retract into or extend beyond the guide limiting member 12. Thus, the limiting engagement between the transmission structure 20 and the guide limiting member 12 allows the guide limiting member 12 to move with the movement of the transmission structure 20, enabling the cover 10 to switch between an open and closed position. Furthermore, since the transmission structure 20 is guided and matched with the guide limiting member 12, the guide limiting member 12 can guide the movement of the transmission structure 20. When the cover 10 is held in the snap-fit ​​position, the transmission structure 20 can drive the nozzle 30 to retract smoothly into the guide limiting member 12 or extend out of the guide limiting member 12 when it moves.

[0047] like Figures 1 to 8 As shown, the guide limiting member 12 includes a first guide plate 121 connected to the cover plate 11, a second guide plate 122 spaced apart from the first guide plate 121, and a limiting plate 123 connected to the first guide plate 121 and the second guide plate 122. The second guide plate 122 is located inside the first guide plate 121, and the second guide plate 122 and the first guide plate 121 form a guide channel 15. The transmission structure 20 is either guided or limited by the guide channel 15. The design of the guide channel 15 ensures smooth movement of the transmission structure 20 within the guide limiting member 12, and the arrangement of the first guide plate 121 and the second guide plate 122 makes the movement of the transmission structure 20 more stable. The setting of the limiting plate 123 facilitates the guide limiting member 12 to stably stop the transmission structure 20, so as to ensure that the nozzle is stably kept in the position retracted into the guide limiting member, and to ensure the stability of the transmission structure 20 in the process of driving the cover 10 to switch between the open position and the latching position.

[0048] like Figures 1 to 8As shown, the first guide plate 121 is a first arc-shaped plate, and the second guide plate 122 is a second arc-shaped plate. An arc-shaped guide channel 15 can be defined between the first arc-shaped plate and the second arc-shaped plate, so that the transmission structure 20 can swing along the arc-shaped guide channel 15, thereby driving the nozzle 30 to retract into the guide limiting member 12 or extend out of the guide limiting member 12 in a swinging manner.

[0049] Specifically, from a top view of the cover plate 11, both the first and second arc-shaped plates are U-shaped, and from a side view of the cover plate 11, both the first and second arc-shaped plates are arcs that are consistent with the swing trajectory of the transmission structure 20.

[0050] like Figures 1 to 8 As shown, the transmission structure 20 includes a transmission cylinder 23, with the nozzle 30 mounted on it. The transmission cylinder 23 is movably positioned within the guide channel 15, and the transmission cylinder 23 is guided and engaged with the guide channel 15. The transmission cylinder 23 can also be positioned and engaged with the limiting plate 123, and it can also support the guide channel 15. This guidance between the transmission cylinder 23 and the guide channel 15 facilitates a smoother and more efficient retraction of the nozzle 30 into or out of the guide limiting member 12. When the cover 10 is in the open position (i.e., after the cover 10 is opened), the transmission cylinder 23 supports the guide channel 15, ensuring that the cover 10 is stably held in the open position.

[0051] like Figures 4 to 8 As shown, the diameter of the transmission cylinder 23 gradually decreases from the top to the bottom of the cover 10. When the cover 10 is in the open position, i.e., after the cover 10 is opened, the inner wall of the guide channel 15 supports the transmission cylinder 23. The transmission cylinder 23 is confined within the guide channel 15, ensuring that the transmission cylinder 23 will not loosen or slip out within the guide channel 15, effectively ensuring that the cover 10 can be stably maintained in the open position, i.e., the opened position.

[0052] like Figures 4 to 8 As shown, the transmission structure 20 also includes a transmission arm 25 connected to the transmission cylinder 23 and a transmission cover 22 covering the transmission arm 25 and the transmission cylinder 23. A portion of the transmission cover 22 is connected to the transmission arm 25, and the remaining portion of the transmission cover 22 abuts against the bottom of the transmission cylinder 23 via an elastic member 28. The elastic member 28 can apply elastic force to the remaining portion of the transmission cover 22 and the bottom of the transmission cylinder 23 respectively, ensuring the adaptability of the transmission structure 20 during movement, absorbing impacts and vibrations during movement, maintaining smooth contact between the transmission cylinder 23 and the guide channel 15, thereby ensuring the smooth extension or retraction of the nozzle 30 and improving the reliability of the nozzle 30's movement.

[0053] In this embodiment, the transmission cylinder 23 and the transmission arm 25 are integrally formed as the transmission seat 21 described below.

[0054] like Figures 4 to 8 As shown, in the direction of the guiding engagement between the transmission structure 20 and the guide channel 15, there is a preset distance between the second guide plate 122 and the cover 10, so as to form a receiving space 26 within the first guide plate 121. When the transmission structure 20 moves, it can drive the nozzle 30 to retract into the receiving space 26. The existence of the receiving space 26 provides the nozzle 30 with a position when retracted, avoiding contact between the nozzle 30 and the cover 10, and preventing the surface of the cover 10 from contaminating the nozzle 30. At the same time, during the cooking process, the nozzle 30 is not directly exposed, reducing the accumulation of contaminants and facilitating the cleaning of the nozzle 30 later.

[0055] like Figures 2 to 8 As shown, the cover 10 also includes a retaining ring 14, which is clamped onto the cover plate 11 along with the guide limiting member 12. The interior of the retaining ring 14 communicates with the interior of the guide limiting member 12 to form a guide channel 15, and the transmission structure 20 is guided and engaged with the guide channel 15. The retaining ring 14 facilitates fixing the guide limiting member 12 onto the cover plate 11. At the same time, the retaining ring 14 extends the internal space of the guide limiting member 12, facilitating the formation of the guide channel 15, providing accurate guidance for the movement of the transmission structure 20, and improving the accuracy of the nozzle 30's extension and retraction.

[0056] like Figures 4 to 8 As shown, the portion of the transmission structure 20 away from the cover 10 is the hinge portion 251. When the transmission structure 20 moves within the guide channel 15, it forms a preset trajectory line L1, which is an arc. The hinge portion 251 allows the transmission structure 20 to swing around its swing axis, and the arc-shaped guide channel 15 provides a smooth arc-shaped path for the transmission structure 20, reducing the resistance during the swing process. This allows the nozzle 30 to complete its extension and retraction actions more quickly and accurately, improving cleaning efficiency. The hinge portion 251 is the portion of the driven transmission member 43 that is fitted onto the rotating shaft 61 in the following text.

[0057] The transmission base is a plastic part, primarily serving a supporting and containing function. Inside the transmission base is a U-shaped cavity, which mainly houses the liquid delivery tube for the flow of cleaning fluid, such as water. The transmission cover is also a plastic part, primarily forming a seal with the transmission base to accommodate the liquid delivery tube while concealing it for aesthetic purposes. The cover itself is a transparent element, which can be made of glass, highly transparent plastic, or transparent metal. The cover is mainly used during cooking to allow for real-time monitoring of the cooking process; during cleaning, it primarily prevents water vapor from splashing out. The liquid delivery tube is a food-grade vapor-phase silicone tube, mainly guiding the cleaning fluid pumped by the water pump to the nozzle.

[0058] like Figures 4 to 8 As shown, the transmission structure 20 includes a transmission seat 21 and a transmission cover 22 connected to the transmission seat 21. A nozzle 30 is mounted on the transmission seat 21. A cavity 27 is formed between the transmission seat 21 and the transmission cover 22. The cover assembly also includes a liquid delivery pipe 40 located within the cavity 27 and connected to the nozzle 30. The transmission seat 21 is movably mounted on a guide limiting member 12 and can engage with or guide the guide limiting member 12. A break 124 is provided on the side wall of the guide limiting member 12 to avoid the transmission seat 21 and the transmission cover 22. The cavity 27 provides sufficient space to accommodate the liquid delivery pipe 40. Furthermore, the transmission cover 22 can cover the transmission seat 21, making the liquid delivery pipe 40 invisible from the outside of the transmission structure 20, thus serving an aesthetic purpose. In this way, after the end of the transmission seat 21 passes through the break 124 into the guide limiting member 12, it can enter the guide direction that cooperates with the guide limiting member 12, thereby realizing the installation of the transmission structure 20, and also realizing that the transmission structure 20 can cooperate with the guide limiting member 12 or can cooperate with the guide limiting member 12.

[0059] The cover assembly of this application also includes an upper cover 13, which has an opening 131. A cover plate 11 is closable on the upper cover 13. When the cover plate 11 is opened from the opening 131, the cover 10 is in the open position. When the cover plate 11 closes the opening 131, the cover 10 is in the latched position.

[0060] This application also provides a cooking utensil, such as Figures 1 to 13 As shown, an embodiment of the cooking appliance includes a base 50 and a cover assembly disposed on the base 50, the cover assembly being the aforementioned cover assembly. Since the aforementioned cover assembly can solve the problem of the nozzle being difficult to clean in related technologies, cooking appliances including this cover assembly can also solve the same technical problem.

[0061] like Figures 9 to 13 As shown, the cooking appliance also includes a motor 60 mounted on the base 50, which drives the transmission structure 20. The motor 60 drives the transmission structure 20, enabling the lid 10 to automatically switch between an open and closed position. Furthermore, when the lid 10 is in the closed position, the movement of the transmission structure 20 automatically retracts the nozzle 30 into or out of the lid 10, simplifying user operation and enhancing the user experience.

[0062] like Figures 9 to 13As shown, the base 50 includes an outer shell 51, and the cooking appliance also includes an inner pot 52 disposed within the outer shell 51, a stirring structure 53 rotatably disposed on the inner pot 52, and a water tank 54 disposed on the outer shell 51. The nozzle 30 is connected to the water tank 54. The stirring structure 53 can stir the ingredients in the inner pot 52 to achieve a stir-frying function. The cooking appliance also includes an active transmission component 41 and a driven transmission component 43. The active transmission component 41 is rotatably disposed on the base 50, and the motor 60 is drivenly connected to the active transmission component 41. The active transmission component 41 has an active tooth 411. The driven transmission component 43 is disposed on the transmission structure 20, and the driven transmission component 43 has a driven tooth 431 that can mesh with the active tooth 411. The direct connection between the water tank 54 and the nozzle 30 ensures timely supply of cleaning fluid, improving the cleaning response speed and efficiency. Driven by the motor 60, the transmission structure 20 is moved through the cooperation of the active transmission component 41 and the driven transmission component 43, ensuring the automated operation of the lid 10 and the nozzle 30, thus improving the intelligence level and ease of operation of the cooking appliance. Furthermore, because the nozzle 30 can retract into the lid, it prevents the nozzle from protruding outside the lid and scratching the rotating stirring structure.

[0063] The inner pot 52 has a rim that communicates with the outside of the cooking appliance, and the lid 13 is detachably and closably positioned over the rim.

[0064] The cooking appliance also includes a driven pair transmission component 42, which is mounted on the upper cover 13. The driven pair transmission component 42 has a driven secondary tooth 421 that meshes with the driving tooth 411. Driven by the motor 60, the upper cover 13 is driven to swing by the cooperation of the driving transmission component 41 and the driven pair transmission component 42, thereby opening or closing the pot opening. A single motor can control the opening or closing of the upper cover 13, the lid 10, and the extension or retraction of the nozzle 30, significantly reducing manufacturing costs.

[0065] like Figures 10 to 13As shown, the active transmission component 41 includes an active shaft 412 and a first gear 413 and a second gear 414 disposed on the active shaft 412. The motor 60 is drivenly connected to the active shaft 412. The first gear 413 and the second gear 414 are arranged along the axial direction of the active shaft 412. The first gear 413 has an active tooth 411 that can mesh with the driven pair tooth 421, and the second gear 414 has an active tooth 411 that can mesh with the driven tooth 431. Both the first gear 413 and the second gear 414 are incomplete gears. When the active shaft 412 rotates, the first gear 413 meshes with the driven pair tooth 421, and the second gear 414 meshes with the driven tooth 431. By setting the first gear 413 and the second gear 414 as incomplete gears, and by having the first gear 413 and the second gear 414 mesh with the corresponding driven auxiliary gear 421 and driven gear 431 in turn, the motor 60 can drive the upper cover 13 and the cover body 10 to open or close sequentially through the active transmission component 41, the driven auxiliary gear 421 and the driven gear 431.

[0066] like Figures 10 to 13 As shown, the driven pair transmission component 42 is a first arc-shaped rack, which extends around the rotation axis of the driving transmission component 41 and has a driven pair tooth 421. The driven transmission component 43 is a second arc-shaped rack, which extends around the rotation axis of the driving transmission component 41 and has a driven tooth 431. Both the first and second arc-shaped racks are arc-shaped structures. This structure, when used in conjunction with the incomplete gears of the first gear 413 and the second gear 414, can further simplify the structure of the driven pair transmission component 42 and the driven transmission component 43, thereby reducing costs, based on the premise that the motor 60 drives the upper cover 13 and the cover body 10 to open or close sequentially through the driving transmission component 41, the driven pair tooth 421, and the driven tooth 431.

[0067] In this embodiment, along the axial direction of the drive shaft 412, the projections of some of the driving teeth 411 on the first gear 413 overlap with the projections of some of the driving teeth 411 on the second gear 414. With this structure, the switching between the first gear 413 and the second gear 414 and their corresponding driven teeth 421 and 431 is smoother, reducing the likelihood of jamming.

[0068] In this embodiment, the number of teeth on the driving teeth 411 of the first gear 413 and the second gear 414 is 3-50. Fewer than 3 teeth result in insufficient meshing and potential problems; more than 50 teeth result in small tooth features and difficult machining. In this embodiment, the number of teeth is 6-10. Specifically, overlapping teeth are switching coincident teeth, and the number of switching coincident teeth can be 1-10. Fewer than 1 teeth makes switching difficult; more than 10 teeth result in too much overlap and potential interference. In this embodiment, the number of switching coincident teeth is 2-4. Specifically, the pitch circle diameter of the first gear 413 and the second gear 414 is the theoretical circle diameter when gear D1 meshes. The tooth width L1 of the driving tooth 411 is 2-30mm. Fewer than 2mm makes machining difficult and requires high precision; more than 30mm results in an excessively wide tooth width, excessive assembly space, and potential wobbling. In this embodiment, L1 is 6-10mm.

[0069] The driven teeth 421 of the driven pair transmission component 42 and the driven teeth 431 of the driven pair transmission component 43 have 3-50 teeth. Fewer than 3 teeth result in insufficient meshing and potential problems; more than 50 teeth result in small tooth features and difficult machining. In this embodiment, the number of teeth is 6-10. The driven pair transmission components 42 and 43 also have switching overlapping teeth, with 1-10 overlapping teeth. Fewer than 1 overlapping teeth makes switching difficult; more than 10 overlapping teeth lead to excessive overlap and potential interference. In this embodiment, the number of switching overlapping teeth is 2-4. The tooth width L3 of the driven pair transmission components 42 and 43 is 2-30 mm. Fewer than 2 mm makes machining difficult and requires high precision; more than 30 mm results in excessive tooth width, excessive assembly space, and potential wobbling. In this embodiment, L3 is 5-8 mm.

[0070] The number of teeth in both the driven gear 421 and the driven gear 431 is greater than or equal to the number of teeth in the driving gear 411, such that the transmission ratio of the driving transmission member 41, the driven gear 421, and the driven gear 431 is greater than or equal to 1:1. In this embodiment, the number of teeth in the driving gear 411 is n. The number of teeth in the driven gear 421 is m, where m:n is between 1:1 and 10:1. The number of teeth in the driven gear 431 is p, where p:n is between 1:1 and 10:1. Setting m:n between 1:1 and 10:1, and p:n between 1:1 and 10:1, ensures that the transmission ratios of the driving transmission component 41, driven gear 421, and driven gear 431 are between 1:1 and 10:1. This allows the motor 60 to transmit sufficiently large torque to the upper cover 13 and the transmission structure 20 without excessive cost or size for the driving transmission component 41, driven gear 421, and driven gear 431. Specifically, m:n can be 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, or other ratios between 1:1 and 10:1. p:n can be 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, 10:1, or other ratios between 1:1 and 10:1. In this embodiment, m:n and p:n are equal, both being 2:1. That is, for every one rotation of the cover, the active transmission component needs to rotate two times, resulting in smoother rotation at lower speeds.

[0071] The cooking appliance also includes a rotating shaft 61, and the top cover 13 and the transmission structure 20 are all pivotally connected to the outer casing 51 via the rotating shaft 61. The top cover 13 and the transmission structure 20 rotate around the same axis of rotation, which facilitates the arrangement of the transmission structure.

[0072] The distance D between the axis of the rotating shaft 61 and the axis of the driving transmission component 41 is 5mm ≤ D ≤ 30mm. Setting the distance D within this range avoids both excessively small distances affecting gear machining and excessively large gears leading to excessive assembly space, thus affecting volume and assembly. Specifically, the distance D between the axis of the rotating shaft 61 and the axis of the driving transmission component 41 can be 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, or other values ​​between 5mm and 30mm. In this embodiment, the distance D between the axis of the rotating shaft 61 and the axis of the driving transmission component 41 is 15mm ≤ D ≤ 20mm.

[0073] In this embodiment, the module of the driving tooth 411, the driven auxiliary tooth 421, and the driven tooth 431 is all M, where 0.1 ≤ M ≤ 5. Setting the module M of the driving tooth 411, the driven auxiliary tooth 421, and the driven tooth 431 within the above range ensures that the cost is not too high due to an excessively low module, and that the rotation is not prone to jamming due to an excessively large module. Specifically, M can be 0.1, 1, 2, 3, 4, 5, or other values ​​between 0.1 and 5. In this embodiment, the module M is 1, which is convenient for production and also provides a suitable number of teeth.

[0074] In this embodiment, for every one revolution of the active transmission component 41, the upper cover 13 and the transmission structure 20 rotate half a revolution. The two rows of partial teeth on the active transmission component 41 engage and disengage and switch, ensuring that the rotation of the transmission structure 20 and the upper cover 13 does not interfere. Preferably, the active transmission component 41 should not rotate more than one revolution, meaning the rotation angle of the active transmission component 41 needs to be less than 360°. Therefore, in this embodiment, the rotation angle of the upper cover 13 is A1, where 0 < A1 ≤ 90°. The rotation angle of the transmission structure 20 is A2, where 0 < A2 ≤ 90°. The rotation angles A1 and A2 can be 30°, 60°, 90°, or other values ​​within the above range. It should be noted that if the rotation angle A1 of the upper cover 13 is less than or equal to 0°, meaning the upper cover 13 does not rotate, there will be interference when taking out or placing the inner pot; if the rotation angle A1 of the upper cover 13 is greater than 90°, the active transmission component 41 will rotate the double cover more than 360°, which is not feasible. In this embodiment, the preferred flipping angle A1 of the upper cover 13 is 70° ≤ A1 ≤ 85°. When flipping the upper cover 13, the active transmission component 41 needs to rotate an angle O, where 100° < O ≤ 180°. If the angle is less than 100°, there will be interference when removing the pot; if it exceeds 180°, the rotation transmission structure 20 will interfere with the upper cover 13. The preferred angle O is 140° ≤ A1 ≤ 170°. Similarly, the flipping angle A2 of the transmission structure 20 follows the same principle and will not be repeated here.

[0075] In addition, the drive motor 60 operates at a speed between 5 and 100 rpm. Speeds below 5 rpm result in a large gear ratio and complex structure; speeds above 100 rpm cause the cover to flip too quickly, making it difficult to control and leading to water splashing. A speed of 8-12 rpm is preferred, ensuring smooth flipping and preventing water splashing.

[0076] In this embodiment, the cooking appliance is a stir-fry machine; in other embodiments, the cooking appliance is a dough mixer, a multi-functional pot, or a soy milk maker.

[0077] In the description of this utility model, it should be understood that "multiple" means a quantity of two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0078] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0079] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0080] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cover assembly, characterized in that, include: Cover (10); A transmission structure (20) is movably inserted into the cover (10); The nozzle (30) is disposed on the transmission structure (20) or the cover (10) and is movable with the transmission structure (20); When the transmission structure (20) is active, it can drive the nozzle (30) to retract into the cover (10) or extend out of the cover (10).

2. The cover assembly according to claim 1, characterized in that, When the nozzle (30) is mounted on the transmission structure (20), the cover (10) includes a cover plate (11) and a guide limiting member (12) mounted on the cover plate (11). The transmission structure (20) and the guide limiting member (12) are in a limiting or guiding fit. When the transmission structure (20) is guided and engaged with the guide limiting member (12), the transmission structure (20) can drive the nozzle (30) to retract into the guide limiting member (12) or extend out of the guide limiting member (12) when it is moving; when the transmission structure (20) is limited and engaged with the guide limiting member (12), the nozzle (30) is kept in the position retracted into the guide limiting member (12).

3. The cover assembly according to claim 2, characterized in that, The guide limiting member (12) includes a first guide plate (121) connected to the cover plate (11), a second guide plate (122) spaced apart from the first guide plate (121), and a limiting plate (123) connected to the first guide plate (121) and the second guide plate (122). The second guide plate (122) is located inside the first guide plate (121), and the second guide plate (122) and the first guide plate (121) form a guide channel (15). The transmission structure (20) guides and cooperates with the guide channel (15), or the transmission structure (20) limits and cooperates with the limiting plate (123).

4. The cover assembly according to claim 3, characterized in that, The transmission structure (20) includes a transmission cylinder (23), the nozzle (30) is disposed on the transmission cylinder (23), the transmission cylinder (23) is movably disposed on the guide channel (15), the transmission cylinder (23) is guided and engaged with the guide channel (15), the transmission cylinder (23) is capable of being limited and engaged with the limiting plate (123), and / or, the transmission cylinder (23) is capable of being supported and engaged with the guide channel (15).

5. The cover assembly according to claim 4, characterized in that, Along the direction from above the cover (10) to below the cover (10), the diameter of the transmission cylinder (23) gradually decreases. After the cover (10) is opened, the inner wall of the guide channel (15) supports the transmission cylinder (23).

6. The cover assembly according to claim 4, characterized in that, The transmission structure (20) further includes a transmission arm (25) connected to the transmission cylinder (23) and a transmission cover (22) covering the transmission arm (25) and the transmission cylinder (23). A portion of the transmission cover (22) is connected to the transmission arm (25), and the remaining portion of the transmission cover (22) abuts against the bottom of the transmission cylinder (23) through an elastic member (28).

7. The cover assembly according to claim 3 or 4, characterized in that, In the direction of the guiding cooperation between the transmission structure (20) and the guide channel (15), there is a preset distance between the second guide plate (122) and the cover (10) to form a receiving space (26) in the first guide plate (121). When the transmission structure (20) moves, it can drive the nozzle (30) to retract into the receiving space (26).

8. The cover assembly according to any one of claims 2 to 4, characterized in that, The cover (10) also includes a fixing ring (14), which is clamped to the cover plate (11) along with the guide limiting member (12). The interior of the fixing ring (14) is connected to the interior of the guide limiting member (12) to form a guide channel (15), and the transmission structure (20) is guided and cooperated with the guide channel (15).

9. The cover assembly according to claim 8, characterized in that, The portion of the transmission structure (20) away from the cover (10) is a hinge (251). When the transmission structure (20) moves within the guide channel (15), it forms a preset trajectory line (L1), which is an arc.

10. The cover assembly according to any one of claims 2 to 4, characterized in that, The transmission structure (20) includes a transmission seat (21) and a transmission cover (22) connected to the transmission seat (21). The nozzle (30) is disposed on the transmission seat (21). A cavity (27) is formed between the transmission seat (21) and the transmission cover (22). The cover assembly also includes a liquid delivery pipe (40) located in the cavity (27) and connected to the nozzle (30). The transmission seat (21) is movably disposed on the guide limiting member (12) and can be limited or guided with the guide limiting member (12). The side wall of the guide limiting member (12) is provided with a break (124) to avoid the transmission seat (21) and the transmission cover (22).

11. A cooking appliance, comprising a base (50) and a cover assembly disposed on the base (50), characterized in that, The cover assembly is the cover assembly according to any one of claims 1 to 10, and the cooking appliance further includes a motor (60) disposed on the base (50), the motor (60) being capable of driving the transmission structure (20) to move.

12. The cooking utensil according to claim 11, characterized in that, The base (50) includes an outer shell (51), and the cooking appliance also includes an inner pot (52) disposed inside the outer shell (51), a stirring structure (53) rotatably disposed on the inner pot (52), and a water tank (54) disposed on the outer shell (51). The nozzle (30) is connected to the water tank (54). The cooking appliance also includes: An active transmission element (41) is rotatably mounted on the base (50), and the motor (60) is drivenly connected to the active transmission element (41). The active transmission element (41) has an active tooth (411). A driven transmission member (43) is disposed on the transmission structure (20), and the driven transmission member (43) has a driven tooth (431) that can mesh with the driving tooth (411).

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