Cover assembly and cooking appliance

Abstract

The utility model provides a kind of lid assembly and cooking utensil, wherein lid assembly, comprising: first lid, first lid is provided with first opening;Second lid, it is closed to cover and set at first opening;Spray head, it is set on second lid;Liquid delivery pipe, the first end of liquid delivery pipe is communicated with spray head, the second end of liquid delivery pipe is used to connect water tank or water source.The technical scheme of the application effectively solves the problem that the lid assembly in the related art can only be manually cleaned by the user during cleaning.

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] In recent years, with the development of smart homes and automated cooking technologies, automatic stir-fry machines, as a type of intelligent kitchen appliance, have gradually gained market attention. By simulating the actions and processes of manual stir-frying, automatic stir-fry machines can automate cooking operations, not only improving cooking efficiency but also providing users with a more convenient cooking experience. Their core functions include automatic stirring, precise temperature control, and timed cooking, meeting the diverse needs of users for food preparation, and are especially suitable for the busy pace of modern life.

[0003] However, the cooking machines in the relevant technologies include a lid assembly. During the cooking process, the oil fumes, heat, and splattered food pollutants produced by the cooking machine will contaminate the lid assembly. The lid assembly can only be cleaned manually by the user, which is quite troublesome. Utility Model Content

[0004] The main purpose of this utility model is to provide a lid assembly and cooking utensil to solve the problem that the lid assembly in the related technology can only be cleaned manually by the user, which is quite troublesome.

[0005] To achieve the above objectives, according to one aspect of the present invention, a cover assembly is provided, comprising: a first cover having a first opening; a second cover being closable and coverable the first opening; a nozzle being disposed on the second cover; and a liquid delivery pipe having a first end connected to the nozzle and a second end for connecting to a water tank or a water source.

[0006] By applying the technical solution of this utility model, since the nozzle is located on the second cover, when cleaning fluid is introduced into the liquid delivery pipe, the nozzle can spray cleaning fluid onto both the first and second covers to clean the cover assembly. The cleaning process does not require manual intervention from the user, making the cleaning process simpler. Therefore, the technical solution of this application effectively solves the problem in related technologies where cleaning the cover assembly requires manual intervention from the user, which is cumbersome. Furthermore, since the second end of the liquid delivery pipe is used to connect to a water tank or water source, the cover assembly of this application can be adapted to different application scenarios, making it convenient and quick.

[0007] Furthermore, the cover assembly also includes a swing arm that is driven to connect to the second cover, and the swing arm can drive the second cover to open or close the first opening. The drive connection between the swing arm and the second cover enables automatic control of the second cover, eliminating the need for manual operation by the user and reducing the risk of direct contact with heat sources and grease.

[0008] Furthermore, the liquid delivery pipe is located inside the swing arm, and the second cover has a mounting hole. The nozzle includes a spray base and a water outlet. The interior of the spray base communicates with the first end of the liquid delivery pipe. The spray base is installed at the mounting hole and connected to the swing arm, and the water outlet is rotatably suspended on the spray base. Placing the liquid delivery pipe inside the swing arm avoids interference or wear caused by the opening or closing of the second cover. At the same time, the rotatable suspension design of the nozzle allows the nozzle to rotate and spray when the second cover is closed, increasing the coverage of the cleaning fluid on the inner and outer surfaces of the first and second covers and enhancing the cleaning effect.

[0009] Furthermore, the cover assembly also includes a seal disposed at the mounting hole. The spray nozzle includes a fixing plate and a water inlet pipe disposed on the fixing plate. The fixing plate secures the seal at the mounting hole, and the water inlet pipe passes through the mounting hole and is inserted into the swing arm to communicate with the first end of the liquid delivery pipe. The seal ensures a tight seal between the nozzle and the mounting hole, preventing leakage of cleaning fluid at the mounting hole during spraying and maintaining the cleanliness and hygiene of the cover assembly.

[0010] Furthermore, the swing arm includes a first arm segment and a second arm segment connected at an angle. The end of the first arm segment away from the second arm segment is connected to the second cover, and the end of the second arm segment away from the first arm segment is a hinge end. The area between the first and second arm segments is used to avoid the edges of the second and first covers. The design of the area between the first and second arm segments allows both the first and second arm segments to effectively avoid the edges of the second cover, reducing interference with the second cover. This also improves the compactness of the cover assembly structure and optimizes the spatial layout. The hinge end allows the swing arm to swing about the swing axis of the hinge end, which is the part of the driven transmission component sleeved on the rotating shaft in the following description.

[0011] According to another aspect of this utility model, a cooking appliance is provided, including a base and a cover assembly disposed on the base. The cover assembly is the cover assembly described above. The base has a cooking cavity with a second opening. A first cover is closably disposed over the second opening. A water tank is disposed on the base. The integrated design of the water tank facilitates the supply of cleaning liquid and enhances the intelligence and multifunctionality of the cooking appliance.

[0012] Furthermore, the swing arm is oscillatingly mounted on the base. The cooking appliance also includes a drive component, which is connected to both the first lid and the swing arm to open or close them respectively. The drive component's connection to the swing arm and the first lid enables automatic control of the lid assembly, simplifies the user's operation, and improves the intelligence level of the cooking appliance.

[0013] Furthermore, the driving component is driven to the first cover and the swing arm respectively via a transmission mechanism. The transmission mechanism includes: an active transmission component, rotatably mounted on the base, with the driving component driven to it, and the active transmission component having an active tooth; a first driven transmission component, mounted on the first cover, having a first driven tooth capable of meshing with the active tooth; and a second driven transmission component, mounted on the swing arm, having a second driven tooth capable of meshing with the active tooth. The transmission mechanism enables precise control of the first cover and the swing arm by the driving component. Through the meshing of the active tooth, the first driven tooth, and the second driven tooth, the smoothness and accuracy of the movement are ensured, making the swinging operation of the first cover and the swing arm more coordinated and efficient.

[0014] Furthermore, the active transmission component includes a drive shaft and a first gear and a second gear mounted on the drive shaft. The driving component is drivenly connected to the drive shaft. The first gear and the second gear are arranged axially along the drive shaft. The first gear has a driving tooth capable of meshing with a first driven tooth, and the second gear has a driving tooth capable of meshing with a second driven tooth. Both the first gear and the second gear are incomplete gears. When the drive shaft rotates, the first gear meshes with the first driven tooth, and the second gear meshes with the second driven tooth. By configuring the first gear and the second gear as incomplete gears, and by having the first gear and the second gear alternately mesh with the corresponding first driven tooth and second driven tooth, the driving component can drive the first cover and the second cover to open or close sequentially via the transmission mechanism.

[0015] Furthermore, the first driven transmission component is a first arc-shaped rack extending around the rotation axis of the driving transmission component, and the first arc-shaped rack has a first driven tooth; and / or, the second driven transmission component is a second arc-shaped rack extending around the rotation axis of the driving transmission component, and the second arc-shaped rack has a second driven tooth. Both the first and second arc-shaped racks are arc-shaped structures. This structure, used in conjunction with the incomplete gears of the first and second gears, further simplifies the structure of the first and second driven transmission components and reduces costs, based on the premise that the driving component drives the first and second covers to open or close sequentially via the transmission mechanism. Attached Figure Description

[0016] 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:

[0017] Figure 1 A three-dimensional structural diagram of the second cover when it is opened is shown in Embodiment 1 of the cover assembly according to the present invention;

[0018] Figure 2A three-dimensional structural schematic diagram of the liquid delivery pipe on the second cover of the cover assembly according to Embodiment 1 of the present invention is shown, with the pipe connected to the water tank.

[0019] Figure 3 A three-dimensional structural schematic diagram of the liquid delivery pipe on the second cover of the cover assembly according to Embodiment 2 of the present invention is shown, with the water source not shown.

[0020] Figure 4 A cross-sectional schematic diagram of the second cover when closed is shown in Embodiment 1 of the cover assembly according to the present invention;

[0021] Figure 5 It shows Figure 4 A partially enlarged schematic diagram of the second cover when it is closed;

[0022] Figure 6 A schematic diagram of the structure of a cooking appliance (both the first and second lids are closed) provided according to an embodiment of the present invention is shown;

[0023] Figure 7 A schematic diagram of the structure of a cooking utensil (first lid closed, second lid open) provided according to an embodiment of the present invention is shown.

[0024] Figure 8 A schematic diagram of the structure of a cooking utensil (both the first and second lids are open) provided according to an embodiment of the present invention is shown.

[0025] Figure 9 A cross-sectional view of a cooking utensil (with lid closed for cleaning) provided according to an embodiment of the present invention is shown;

[0026] Figure 10 A schematic diagram of the structure of the top cover of a cooking utensil provided according to an embodiment of the present invention is shown;

[0027] Figure 11 A schematic diagram of the active transmission component of a cooking appliance provided according to an embodiment of the present invention is shown;

[0028] Figure 12 A side view of the active transmission component of a cooking appliance provided according to an embodiment of the present invention is shown;

[0029] Figure 13 A front view of the active transmission component of a cooking appliance provided according to an embodiment of the present invention is shown;

[0030] Figure 14 A schematic diagram of the structure of the second driven transmission member of the cooking appliance provided according to an embodiment of the present invention is shown;

[0031] Figure 15A schematic diagram of the structure of the top cover of a cooking utensil provided according to an embodiment of the present invention is shown;

[0032] Figure 16 A schematic diagram of the structure of the locking member (both the first cover and the second cover are closed) of a cooking utensil provided according to an embodiment of the present invention is shown.

[0033] Figure 17 A schematic diagram of the structure of the locking member (both the first cover and the second cover are closed) of a cooking utensil provided according to an embodiment of the present invention is shown.

[0034] Figure 18 A cross-sectional view of a cooking appliance (first lid closed, second lid open) provided according to an embodiment of the present invention is shown;

[0035] Figure 19 A schematic diagram of the structure of the top cover of a cooking utensil provided according to an embodiment of the present invention is shown;

[0036] Figure 20 A schematic diagram of the structure of the locking member (first cover closed, second cover open) of a cooking utensil provided according to an embodiment of the present invention is shown;

[0037] Figure 21 A schematic diagram of the structure of the top cover of a cooking utensil provided according to an embodiment of the present invention is shown;

[0038] Figure 22 A schematic diagram of the structure of the top cover (both the first cover and the second cover are open) of a cooking utensil provided according to an embodiment of the present utility model is shown;

[0039] Figure 23 A schematic diagram of the structure of the top cover of a cooking utensil provided according to an embodiment of the present invention is shown;

[0040] Figure 24 A schematic diagram of the structure of the locking member (both the first cover and the second cover are open) of the cooking utensil provided according to an embodiment of the present utility model is shown;

[0041] Figure 25 A schematic diagram of the structure of the locking member (both the first cover and the second cover are open) of the cooking utensil provided according to an embodiment of the present utility model is shown;

[0042] Figure 26 A schematic diagram of the structure of the pot body of the cooking utensil provided according to an embodiment of the present invention is shown;

[0043] Figure 27 A schematic diagram of the structure of the top cover of a cooking utensil provided according to an embodiment of the present invention is shown;

[0044] Figure 28An assembly diagram of the drive motor, active transmission component, and fixed bracket of a cooking appliance provided according to an embodiment of the present invention is shown.

[0045] Figure 29 A cross-sectional view of the top cover of a cooking appliance provided according to an embodiment of the present invention is shown;

[0046] Figure 30 It shows Figure 29 A magnified view of a section at point X;

[0047] Figure 31 A schematic diagram of the structure of the second cover of the cooking utensil provided according to an embodiment of the present invention is shown;

[0048] Figure 32 A schematic diagram of the structure of the first cover of the cooking utensil provided according to an embodiment of the present invention is shown;

[0049] Figure 33 A partially enlarged view of the top cover (at the second locking block) of the cooking appliance provided according to an embodiment of the present invention is shown;

[0050] Figure 34 A partially enlarged view of the top cover (at the first locking block) of a cooking appliance provided according to an embodiment of the present invention is shown.

[0051] The above figures include the following reference numerals:

[0052] 10. Matrix; 11. Second opening;

[0053] 21. First cover; 211. First opening; 212. Metal layer; 213. Plastic layer; 22. Second cover; 221. Swing arm; 2211. First arm segment; 2212. Second arm segment; 2213. Hinge end; 223. Liquid delivery pipe; 224. Nozzle; 2241. Spray base; 2242. Water outlet; 2243. Fixing plate; 2244. Water inlet pipe; 225. Mounting hole; 226. Connector; 23. Seal;

[0054] 30. Driving component; 31. Drive motor; 40. Transmission mechanism; 41. Active transmission component; 411. Active gear; 412. Drive shaft; 413. First gear; 414. Second gear; 42. First driven transmission component; 421. First driven gear; 43. Second driven transmission component; 431. Second driven gear;

[0055] 50. Fixed bracket;

[0056] 60. Rotation axis;

[0057] 70. Mixing components;

[0058] 80. Water tank; 81. Heating device; 82. Pump body;

[0059] 90. Locking element; 91. First locking structure; 911. First locking groove; 912. First locking protrusion; 92. Second locking structure; 921. Second locking groove; 922. Second locking protrusion; 93. Lock seat; 94. First locking block; 95. Second locking block; 96. First screw; 97. First spring; 98. Second screw; 99. Second spring. Detailed Implementation

[0060] 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.

[0061] 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.

[0062] 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.

[0063] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, this application provides a cover assembly. One embodiment of the cover assembly includes: a first cover 21, a second cover 22, a nozzle 224, and a liquid delivery pipe 223. The first cover 21 has a first opening 211. The second cover 22 is closably disposed over the first opening 211. The nozzle 224 is disposed on the second cover 22. The first end of the liquid delivery pipe 223 communicates with the nozzle 224, and the second end of the liquid delivery pipe 223 is used to connect to a water tank 80.

[0064] In the technical solution of Embodiment 1 of the cover assembly, since the nozzle 224 is located on the second cover 22, when cleaning fluid is introduced into the liquid delivery pipe 223, the nozzle 224 can spray cleaning fluid onto the first cover 21 and the second cover 22 to clean the cover assembly. The cleaning process of the cover assembly does not require manual intervention from the user, making the cleaning process simpler. Therefore, the technical solution of Embodiment 1 of the cover assembly effectively solves the problem in related technologies where cleaning the cover assembly can only be done manually by the user, which is quite troublesome. In Embodiment 1, the nozzle 224 is a water-driven rotary nozzle, which facilitates the spraying of cleaning fluid (such as water) using a water-driven rotary principle. The liquid delivery pipe is a food-grade vapor-phase silica gel tube, mainly used to guide the cleaning fluid pumped by the pump to the nozzle.

[0065] Specifically, the second end of the liquid delivery pipe 223 is connected to the water tank 80 through the connector 226. A pump body 82 is provided in the liquid delivery pipe 223. The pump body 82 is designed to draw the cleaning liquid (such as water) in the water tank 80 and pump it through the liquid delivery pipe 223 to the nozzle 224 so that the cleaning liquid sprayed from the nozzle 224 can clean the first cover 21 and the second cover 22.

[0066] In Embodiment 2 of the cover assembly, the difference from Embodiment 1 lies in the water supply method connected to the second end of the liquid delivery pipe 223, such as... Figure 3 As shown, the second end of the liquid delivery pipe 223 is used to connect to a water source. Thus, this application provides two embodiments in which the second end of the liquid delivery pipe 223 is used to connect to a water tank 80 or a water source, so that the cover assembly of this application can be adapted to different application scenarios, which is convenient and quick.

[0067] Specifically, in Embodiment 2 of the cover assembly, the second end of the liquid delivery pipe 223 is connected to a water source via a connector 226. The liquid delivery pipe 223 is equipped with a pump body 82 and a heating device 81. The pump body 82 can draw the cleaning liquid, such as water, from the water tank 80 and pump it through the liquid delivery pipe 223 to the nozzle 224. The heating device 81 can heat the cleaning liquid after passing through the heating device 81 so that the cleaning liquid sprayed from the nozzle 224 can clean the first cover 21 and the second cover 22.

[0068] The heating device 81 includes a heating wire or a heating tube.

[0069] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the cover assembly also includes a swing arm 221 that is driven to connect with the second cover 22. The swing arm 221 can drive the second cover 22 to open or close the first opening 211. The drive connection between the swing arm 221 and the second cover 22 enables automatic control of the second cover 22 without the need for manual operation by the user, reducing the risk of direct contact with heat sources and grease.

[0070] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the liquid delivery pipe 223 is located inside the swing arm 221. The second cover 22 has a mounting hole 225. The nozzle 224 includes a spray base 2241 and a water outlet 2242. The interior of the spray base 2241 communicates with the first end of the liquid delivery pipe 223. The spray base 2241 is installed at the mounting hole 225 and connected to the swing arm 221. The water outlet 2242 is rotatably suspended on the spray base 2241. Placing the liquid delivery pipe 223 inside the swing arm 221 avoids interference or wear on the liquid delivery pipe 223 caused by the opening or closing of the second cover 22. Simultaneously, the rotatable suspension design of the nozzle 224 allows it to rotate and spray when the second cover 22 is closed, increasing the coverage of the cleaning fluid on the inner and outer surfaces of the first and second covers 21 and 22, enhancing the cleaning effect, and reducing the impact of the second cover 22 opening or closing on the nozzle.

[0071] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the cover assembly also includes a seal 23 disposed at the mounting hole 225. The spray base 2241 includes a fixing plate 2243 and a water receiving pipe 2244 disposed on the fixing plate 2243. The fixing plate 2243 fixes the seal 23 at the mounting hole 225. The water receiving pipe 2244 passes through the mounting hole 225 and is inserted into the swing arm 221 to communicate with the first end of the liquid delivery pipe 223. The seal 23 ensures the sealing between the nozzle 224 and the mounting hole 225, preventing leakage of cleaning fluid at the mounting hole 225 during spraying and maintaining the cleanliness and hygiene of the cover assembly. At the same time, the connection between the water receiving pipe 2244 and the liquid delivery pipe 223 ensures a stable supply of cleaning fluid and ensures the effective operation of the automatic cleaning process. The seal 23 is preferably a sealing ring.

[0072] Specifically, to further ensure the sealing performance at the mounting hole 225, the hole wall of the mounting hole 225 is interference-fitted with the seal 23, the part of the swing arm 221 that contacts the seal 23 is also interference-fitted, and the connection between the water inlet pipe 2244 and the liquid delivery pipe 223 is also interference-fitted. This ensures the sealing performance of the connection between the water inlet pipe 2244 and the liquid delivery pipe 223.

[0073] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, the swing arm 221 includes a first arm segment 2211 and a second arm segment 2212 connected at an angle. The end of the first arm segment 2211 away from the second arm segment 2212 is connected to the second cover 22. The end of the second arm segment 2212 away from the first arm segment 2211 is a hinge end 2213. The area between the first arm segment 2211 and the second arm segment 2212 is used to avoid the edges of the second cover 22 and the first cover 21. The design of the area between the first arm segment 2211 and the second arm segment 2212 allows both the first arm segment 2211 and the second arm segment 2212 to effectively avoid the edges of the second cover 22, reducing interference with the second cover 22. This also improves the compactness of the cover assembly structure, optimizes the spatial layout, and enhances the overall aesthetics and operational smoothness.

[0074] This application also provides a cooking utensil, such as Figures 6 to 10 As shown, an embodiment of the cooking appliance includes a base 10 and a cover assembly disposed on the base 10. The cover assembly is the aforementioned cover assembly. The base 10 has a cooking cavity with a second opening 11. A first cover 21 is closably disposed over the second opening 11. A water tank 80 is disposed on the base 10. The integrated design of the water tank facilitates the supply of cleaning fluid and enhances the intelligence and multifunctionality of the cooking appliance. Since the aforementioned cover assembly solves the problem in related technologies where the cover assembly can only be cleaned manually by the user, cooking appliances including this cover assembly can solve the same technical problem. In this embodiment, the base 10 is a pot body; in other embodiments, the base 10 is a base.

[0075] like Figures 8 to 10 As shown, the swing arm 221 is oscillatingly mounted on the base 10. The cooking appliance also includes a drive component 30, which is driven to connect the first cover 21 and the swing arm 221 respectively, so as to drive the first cover 21 and the swing arm 221 to open or close respectively. The drive component 30 is driven to connect the swing arm 221 and the first cover 21, realizing automatic control of the cover assembly, simplifying the user's operation process, improving the intelligence level of the cooking appliance, and at the same time, the setting of the drive component also ensures the stability of the first cover and the second cover during the opening and closing process.

[0076] like Figures 8 to 10 As shown, the driving component 30 is driven to the first cover 21 and the swing arm 221 respectively via the transmission mechanism 40. By setting the transmission mechanism 40 to achieve the driving connection between the driving component 30 and the first cover 21, as well as between the driving component 30 and the swing arm 221, compared with the method of directly connecting the driving component 30 to the first cover 21 and the swing arm 221, it has the advantage of flexible transmission structure setting and can easily meet different cover opening requirements.

[0077] For example, in this embodiment, the drive member 30 can drive the first cover 21 and the second cover 22 to open or close sequentially through the transmission mechanism 40, thereby increasing the ways to use the cooking appliance.

[0078] Specifically, the drive unit 30 first drives the swing arm 221 to open the second cover 22 via the transmission mechanism 40. After the second cover 22 is opened, the drive unit 30 drives the first cover 21 to open via the transmission mechanism. When closing the cover, the first cover 21 closes first, and after the first cover 21 closes, the second cover 22 closes.

[0079] like Figures 8 to 15 As shown, the transmission mechanism 40 includes: a driving transmission member 41, a first driven transmission member 42, and a second driven transmission member 43. The driving transmission member 41 is rotatably mounted on the base 10, and the driving member 30 is drivenly connected to the driving transmission member 41. The driving transmission member 41 has a driving tooth 411. The first driven transmission member 42 is mounted on the first cover 21 and has a first driven tooth 421 capable of meshing with the driving tooth 411. The second driven transmission member 43 is mounted on the swing arm 221 and has a second driven tooth 431 capable of meshing with the driving tooth 411. The transmission mechanism 40 enables the driving member 30 to precisely control the first cover 21 and the swing arm 221. Through the meshing of the driving tooth 411, the first driven tooth 421, and the second driven tooth 431, the smoothness and accuracy of the movement are ensured, making the swinging operation of the first cover 21 and the swing arm 221 more coordinated and efficient. The above structure utilizes gears to achieve transmission, which has the advantages of simple and stable transmission structure.

[0080] like Figures 8 to 15As 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 driving component 30 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 first driven tooth 421, and the second gear 414 has an active tooth 411 that can mesh with the second 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 first driven tooth 421, and the second gear 414 meshes with the second 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 first driven tooth 421 and the second driven tooth 431 in turn, the driving member 30 can drive the first cover 21 and the second cover 22 to open or close sequentially through the transmission mechanism 40.

[0081] like Figures 8 to 15 As shown, the first driven transmission member 42 is a first arc-shaped rack extending around the rotation axis of the driving transmission member 41, and the first arc-shaped rack has a first driven tooth 421; and / or, the second driven transmission member 43 is a second arc-shaped rack extending around the rotation axis of the driving transmission member 41, and the second arc-shaped rack has a second 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 first driven transmission member 42 and the second driven transmission member 43 and reduce costs, based on the fact that the driving member 30 drives the first cover 21 and the second cover 22 to open or close sequentially through the transmission mechanism 40.

[0082] 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 transmission components is smoother, reducing the likelihood of jamming.

[0083] Specifically, such as Figures 10 to 15As shown, 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 D1 (the theoretical circle diameter when the gears are meshing). 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 a wide tooth width, excessive assembly space, and potential wobbling. In this embodiment, L1 is 6-10mm.

[0084] Specifically, such as Figures 10 to 15 As shown, the number of teeth in the first driven gear 421 of the first driven transmission member 42 and the second driven gear 431 of the second driven transmission member 43 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. The first driven transmission member 42 and the second driven transmission member 43 also have switching overlapping teeth, with the number of switching overlapping teeth being 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 overlapping teeth is 2-4. The tooth width L3 of the first driven transmission member 42 and the second driven transmission member 43 is 2-30mm. Fewer than 2mm makes machining difficult and requires high precision; more than 30mm results in excessive tooth width, excessive assembly space, and potential wobbling. In this embodiment, L3 is 5-8mm.

[0085] For example, 26 to Figure 28 As shown, in this embodiment, the cooking appliance also includes a fixed bracket 50. An active transmission component 41 is rotatably mounted on the fixed bracket 50, and the active transmission component 41 is axially positioned within the fixed bracket 50. A driving component 30 is mounted on the fixed bracket 50, and the fixed bracket 50 is connected to the pot body. The fixed bracket 50 enables the fixation of the active transmission component 41 and the driving component 30, and the shared bracket simplifies the assembly structure.

[0086] The drive component 30 includes a drive motor 31, which has the advantages of easy control and simple structure.

[0087] The drive motor is fixed to the mounting bracket 50 using two screws, and the active transmission component is installed at the same time. The mounting bracket 50 is a U-shaped part. The drive motor is secured on the left side with two screws, and the active transmission component is limited on the right side to ensure that the drive motor and the active transmission component rotate coaxially. Then, the mounting bracket 50 is fixed to the outer shell of the pot body with two screws.

[0088] like Figure 27 As shown, the first cover 21 includes a metal layer 212 and a plastic layer 213 that covers the outside of the metal layer 212. The first driven transmission member 42 is disposed on the plastic layer 213. The metal layer 212 can insulate the heat in the cooking cavity to prevent the first cover 21 from being burned, and the plastic layer 213 can cover the metal layer 212 to improve the integrity of the first cover 21.

[0089] The second cover 22 is a viewing cover. The first end of the swing arm 221 is hinged to the pot body, and the viewing cover is located at the second end of the swing arm 221. The second driven transmission component 43 is located at the first end of the swing arm 221. The user can see through the viewing cover to observe the cooking process inside the cooking cavity, facilitating subsequent operations. Furthermore, the opening and closing of the viewing cover via the swing arm 221 has the advantages of simple structure and low cost.

[0090] In this embodiment, the cooking appliance also includes a rotating shaft 60, and the first lid 21 and the swing arm 221 are both pivotally connected to the pot body via the rotating shaft 60. The first lid 21 and the swing arm 221 rotate around the same rotation axis, which facilitates the arrangement of the transmission structure, wherein when the swing arm 221 rotates, it drives the second lid 22 to rotate together.

[0091] Specifically, the swing arm 221 is equipped with a liquid delivery pipe 223 and a nozzle 224. The nozzle 224 can spray water into the cooking cavity formed by the pot body and the lid assembly to clean the cooking cavity or add water during the cooking process. In this embodiment, the nozzle 224 is a water-driven rotating nozzle.

[0092] Specifically, the cooking appliance also includes a stirring element 70, which is rotatably disposed within the cooking cavity formed by the pot body and the lid assembly, and the stirring element 70 is capable of stirring food.

[0093] It should be noted that in this embodiment, the transmission ratio of the transmission mechanism 40 is greater than or equal to 1:1. Because the transmission ratio of the transmission mechanism 40 is greater than or equal to 1:1, the driving member 30 can transmit a sufficiently large torque to the first cover 21 and the swing arm 221, making the opening and closing process of the first cover 21 and the second cover 22 more stable and effortless. Specifically, the driving member 30 is driven to the first cover 21 through the transmission mechanism 40, at which time the transmission ratio of the transmission mechanism 40 is greater than or equal to 1:1. The driving member 30 is also driven to the swing arm 221 through the transmission mechanism 40, at which time the transmission ratio of the transmission mechanism 40 is also greater than or equal to 1:1.

[0094] Specifically, the transmission ratio of the transmission mechanism 40 is between 1:1 and 10:1, so that the driving member 30 can transmit a sufficiently large torque to the first cover 21 and the swing arm 221 without being too expensive or bulky. That is, the transmission ratio of the transmission mechanism 40 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, the transmission ratio of the transmission mechanism 40 is between 1:1 and 3:1, so that the driving member 30 can transmit a sufficiently large torque to the first cover 21 and the swing arm 221 without being too expensive or bulky. Specifically, the transmission ratio of the transmission mechanism 40 is 2:1.

[0095] Specifically, the number of teeth in both the first driven tooth 421 and the second driven tooth 431 is greater than or equal to the number of teeth in the driving tooth 411, such that the transmission ratio of the transmission mechanism 40 is greater than or equal to 1:1. In this embodiment, the number of teeth in the driving tooth 411 is n. The number of teeth in the first driven tooth 421 is m, where m:n is between 1:1 and 10:1. The number of teeth in the second driven tooth 431 is p, where p:n is between 1:1 and 10:1. By setting m:n between 1:1 and 10:1, and setting p:n between 1:1 and 10:1, the transmission ratio of the transmission mechanism 40 is between 1:1 and 10:1. In this way, the driving member 30 can transmit a sufficiently large torque to the first cover 21 and the swing arm 221, while the cost and size of the transmission mechanism 40 are not excessive. Where 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 low-speed rotation.

[0096] The distance D between the axis of the rotating shaft 60 and the axis of the drive transmission component 41 is 5mm ≤ D ≤ 30mm. Setting the distance D between the axes of the rotating shaft 60 and the drive transmission component 41 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 axes of the rotating shaft 60 and the drive 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 axes of the rotating shaft 60 and the drive transmission component 41 is 15mm ≤ D ≤ 20mm.

[0097] Specifically, the module of the driving tooth 411, the first driven tooth 421, and the second driven tooth 431 is all M, where 0.1 ≤ M ≤ 5. Setting the module M of the driving tooth 411, the first driven tooth 421, and the second 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.

[0098] In this embodiment, for every one revolution of the active transmission component 41, the first cover 21 and the second cover 22 rotate half a revolution. The two rows of partial teeth (active teeth 411) on the active transmission component 41 engage and disengage and switch, ensuring that the flipping of the second cover 22 and the first cover 21 does not interfere with each other. 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 flipping angle of the first cover 21 is A1, where 0 < A1 ≤ 90°. The flipping angle of the second cover 22 is A2, where 0 < A2 ≤ 90°. The flipping angles A1 and A2 can be 30°, 60°, 90°, or other values ​​within the above range. It should be noted that if the flipping angle A1 of the first cover 21 is less than or equal to 0°, meaning the first cover 21 does not flip, there will be interference when taking out or placing the inner pot; if the flipping angle A1 of the first cover 21 is greater than 90°, the active transmission component 41 will rotate the two covers more than 360°, which is not feasible. In this embodiment, the preferred flipping angle A1 of the first cover 21 is 70° ≤ A1 ≤ 85°. When the active transmission component 41 flips the first cover 21, it 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°, there will be interference when rotating the second cover 22 and the first cover 21. The preferred angle O is 140° ≤ A1 ≤ 170°. Similarly, the flipping angle A2 of the swing arm 221 follows the same principle and will not be repeated here.

[0099] In addition, the speed of the drive motor 31 is between 5 rpm and 100 rpm. At speeds less than 5 rpm, the gear ratio is large, resulting in a complex structure; at speeds greater than 100 rpm, the speed is too fast, causing the cover to flip too quickly, making it difficult to control and causing water droplets to splash. A speed of 8-12 rpm is preferred, ensuring smooth flipping and preventing water splashing.

[0100] like Figures 16 to 34 As shown, the cooking appliance also includes a locking element 90. The locking element 90 has a first locking structure 91 and a second locking structure 92. The first locking structure 91 restricts the rotational position of the first lid 21 relative to the pot body, and the second locking structure 92 restricts the rotational position of the swing arm 221 relative to the pot body. During use of the cooking appliance, under the constraints of the first locking structure 91 and the second locking structure 92, the first lid 21 and the second lid 22 are less likely to wobble in their rotational direction when opening and closing, thus improving the user experience. Furthermore, using a single locking element 90 to simultaneously limit the position of both lids simplifies the locking mechanism and reduces manufacturing costs.

[0101] like Figure 16 As shown, in this embodiment, the locking member 90 includes a locking seat 93, a first locking block 94, and a second locking block 95. The locking seat 93 is disposed on the pot body. The first locking block 94 is disposed on the first lid 21, and a first locking structure 91 is provided between the locking seat 93 and the first locking block 94. The second locking block 95 is disposed on the swing arm 221, and a second locking structure 92 is provided between the locking seat 93 and the second locking block 95. The locking seat 93 and the first locking block 94 cooperate to restrict the rotational position of the first lid 21 relative to the pot body, and the locking seat 93 and the second locking block 95 cooperate to restrict the rotational position of the swing arm 221 relative to the pot body.

[0102] Furthermore, by setting a lock seat 93, it can cooperate with two first lock blocks 94 at the same time, and the structure of the locking member 90 is relatively simple.

[0103] The first locking structure 91 includes a first locking groove 911 and a first locking protrusion 912. One of the first locking groove 911 and the first locking protrusion 912 is disposed on the lock seat 93, and the other of the first locking groove 911 and the first locking protrusion 912 is disposed on the first locking block 94. When the first cover 21 rotates relative to the pot body to a preset position, the first locking protrusion 912 is engaged in the first locking groove 911. The second locking structure 92 includes a second locking groove 921 and a second locking protrusion 922. One of the second locking groove 921 and the second locking protrusion 922 is disposed on the lock seat 93, and the other of the second locking groove 921 and the second locking protrusion 922 is disposed on the second locking block 95. When the swing arm 221 rotates relative to the pot body to a preset position, the second locking protrusion 922 is engaged in the second locking groove 921. Furthermore, the first locking block 94 and the second locking block 95 are located on both sides of the lock seat 93. By using a combination of locking grooves and locking protrusions, it has the advantage of a simple locking structure.

[0104] In this embodiment, the two opposite sidewalls of the lock base 93 are respectively provided with a first locking groove 911 and a second locking groove 921, a first locking protrusion 912 is provided on the first lock block 94, and a second locking protrusion 922 is provided on the second lock block 95.

[0105] like Figure 16 As shown, the width of the first locking groove 911 gradually increases in the direction from the bottom to the opening, and the shape of the first locking protrusion 912 matches the shape of the first locking groove 911. The width of the second locking groove 921 gradually increases in the direction from the bottom to the opening, and the shape of the second locking protrusion 922 matches the shape of the second locking groove 921. By setting the locking groove and locking protrusion to the above shapes, the locking protrusion can be inserted into or disengaged from the locking groove without applying excessive force, which facilitates operation.

[0106] In this embodiment, the first locking block 94 is movably disposed on the first cover 21 to allow the first locking structure 91 to switch between a locked state and an unlocked state. The second locking block 95 is movably disposed on the swing arm 221 to allow the second locking structure 92 to switch between a locked state and an unlocked state. By making the first locking block 94 and the second locking block 95 movable, combined with the aforementioned shapes of the locking groove and the locking protrusion, the locking blocks will not be subjected to excessive force when the locking protrusion enters or exits the locking groove, the locking components are less prone to damage, and the service life of the device can be extended.

[0107] like Figures 30 to 34As shown, in this embodiment, the locking member 90 further includes a first screw 96 and a first spring 97. The first locking block 94 is connected to the first cover 21 via the first screw 96. The first locking block 94 is movable relative to the first cover 21 along the axial direction of the first screw 96. The first spring 97 is disposed between the first locking block 94 and the first cover 21 to allow the first locking block 94 to move toward the lock seat 93. The locking member 90 also includes a second screw 98 and a second spring 99. The second locking block 95 is connected to the swing arm 221 via the second screw 98. The second locking block 95 is movable relative to the swing arm 221 along the axial direction of the second screw 98. The second spring 99 is disposed between the second locking block 95 and the swing arm 221 to allow the second locking block 95 to move toward the lock seat 93. With the above structure, the spring can provide a restoring force to the corresponding lock block, so that the lock block moves toward the lock seat 93. This ensures that when the locking protrusion enters or exits the locking groove, the lock block will not be subjected to excessive force, and the locking component will not be easily damaged.

[0108] With the above structure, the first locking block 94 slides on the lock seat by elastic compression. When the locking protrusion of the first locking block 94 engages with the locking groove of the lock seat, it will lock. When the rotational force is greater than the locking force, the first locking block 94 will compress the first spring 97, retract outward and disengage from the locking groove, thus unlocking is completed. The locking principle of the second locking block 95 is the same as that of the first locking block 94, and will not be described again here.

[0109] In this embodiment, the locking component has three states: locking when both the first and second covers are closed, locking after the second cover is opened, and locking after both the first and second covers are open. By setting the locking component, automatic locking before and after flipping can be achieved, making the flipping smoother and the flipping more stable.

[0110] Specifically, the driving component 30 is a drive motor. The output shaft of the drive motor is located below the rotation axis of the first cover 21 and the swing arm 221. The center of gravity of the swing arm 221 is located on the side away from the pot body from the rotation axis. When the second cover 22 is in the open state, the second cover 22 is positioned and limited by the contact pressure between the swing arm 221 and the pot body. With the assistance of the second locking structure 92, the rotation is smoother. After the lid is opened, the second locking mechanism locks it, making it more stable when it stops.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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: A first cover (21) is provided with a first opening (211); The second cover (22) is closable and can be installed on the first opening (211); The nozzle (224) is disposed on the second cover (22); A liquid delivery pipe (223) is provided, the first end of which is connected to the nozzle (224), and the second end of which is used to connect to a water tank (80) or a water source.

2. The cover assembly according to claim 1, characterized in that, The cover assembly also includes a swing arm (221) that is driven to connect with the second cover (22), the swing arm (221) being able to drive the second cover (22) to open or close the first opening (211).

3. The cover assembly according to claim 2, characterized in that, The liquid delivery pipe (223) is located inside the swing arm (221). The second cover (22) is provided with a mounting hole (225). The nozzle (224) includes a spray base (2241) and a water outlet (2242). The interior of the spray base (2241) is connected to the first end of the liquid delivery pipe (223). The spray base (2241) is installed at the mounting hole (225) and connected to the swing arm (221). The water outlet (2242) is rotatably suspended on the spray base (2241).

4. The cover assembly according to claim 3, characterized in that, The cover assembly also includes a seal (23) disposed at the mounting hole (225). The spray base (2241) includes a fixing plate (2243) and a water receiving pipe (2244) disposed on the fixing plate (2243). The fixing plate (2243) fixes the seal (23) at the mounting hole (225). The water receiving pipe (2244) passes through the mounting hole (225) and is inserted into the swing arm (221) to communicate with the first end of the liquid delivery pipe (223).

5. The cover assembly according to claim 2 or 3, characterized in that, The swing arm (221) includes a first arm segment (2211) and a second arm segment (2212) connected at an angle. The end of the first arm segment (2211) away from the second arm segment (2212) is connected to the second cover (22). The end of the second arm segment (2212) away from the first arm segment (2211) is a hinge end (2213). The area between the first arm segment (2211) and the second arm segment (2212) is used to avoid the edge of the second cover (22) and the edge of the first cover (21).

6. A cooking utensil, comprising a base (10) and a cover assembly disposed on the base (10), characterized in that, The cover assembly is the cover assembly according to any one of claims 2 to 5, the base (10) has a cooking cavity, the cooking cavity has a second opening (11), the first cover (21) is closably disposed on the second opening (11), and the water tank (80) is disposed on the base (10).

7. The cooking utensil according to claim 6, characterized in that, The swing arm (221) is swayably mounted on the base (10). The cooking appliance also includes a drive member (30), which is driven to the first cover (21) and the swing arm (221) respectively, so as to drive the first cover (21) and the swing arm (221) to open or close respectively.

8. The cooking utensil according to claim 7, characterized in that, The driving component (30) is driven to the first cover (21) and the swing arm (221) respectively via a transmission mechanism (40), the transmission mechanism (40) comprising: An active transmission member (41) is rotatably mounted on the base (10), and the driving member (30) is drivenly connected to the active transmission member (41). The active transmission member (41) has an active tooth (411). A first driven transmission member (42) is disposed on the first cover (21), and the first driven transmission member (42) has a first driven tooth (421) capable of meshing with the driving tooth (411); A second driven transmission member (43) is disposed on the swing arm (221), and the second driven transmission member (43) has a second driven tooth (431) capable of meshing with the driving tooth (411).

9. The cooking utensil according to claim 8, characterized in that, 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 driving component (30) 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 first driven tooth (421). The second gear (414) has an active tooth (411) that can mesh with the second driven tooth (431). The first gear (413) and the second gear (414) are both incomplete gears. When the active shaft (412) rotates, the first gear (413) meshes with the first driven tooth (421), and the second gear (414) meshes with the second driven tooth (431).

10. The cooking utensil according to claim 8 or 9, characterized in that, The first driven transmission member (42) is a first arc-shaped rack extending about the rotation axis of the driving transmission member (41), and the first arc-shaped rack has the first driven tooth (421); and / or, The second driven transmission member (43) is a second arc-shaped rack, which extends around the rotation axis of the driving transmission member (41) and has the second driven tooth (431).

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