Drives, material cleaning equipment, and cooking equipment

Abstract

The drive device includes a support member, a transmission shaft (23) having a threaded hole, a rotary drive member (24), a transmission threaded rod (30), and a rotation limiting assembly (34). The transmission shaft (23) is configured to be connected to the actuator member, the rotary drive member (24) is provided on the support member and is rotatable around the rotation axis, the upper end of the transmission threaded rod (30) is provided on the support member and the transmission threaded rod (30) is connected to the transmission shaft (23) by a threaded hole, the transmission threaded rod (30) and the transmission shaft (23) are rotatable relative to each other, the rotation limiting assembly (34) limits the transmission shaft (23) to rotate together with the transmission threaded rod (30), one of the transmission threaded rod (30) and the transmission shaft (23) functions as a rotation transmission member to which the rotary drive member (24) is connected, and the rotation limiting assembly (34) is provided on the support member and connected to the other of the transmission threaded rod (30) and the transmission shaft (23).

Description

[Technical Field]

[0001] The present application relates to the technical field of kitchen appliances, in particular drives, material washing devices and cooking implements. [Background technology]

[0002] Existing cooking appliances, such as automatic rice cookers, have an ingredient washing compartment for washing ingredients. An ingredient discharge port and an ingredient washing compartment lid for closing the ingredient discharge port are provided at the bottom of the ingredient washing compartment. An agitating member is provided for washing ingredients. The agitating member is disposed within the ingredient washing compartment. A driving device, such as an electric motor, is configured to be connected to the agitating member via a mechanical connection structure, such as a shaft or a coupler, and drives the agitating member to rotate about its axis. To open and close the ingredient discharge port, the mechanical connection structure, such as a shaft or a coupler, is further connected to the ingredient washing compartment lid and drives the ingredient washing compartment lid to move up and down.

[0003] The opening and closing operations of the ingredient washing compartment lid and the rotational operation of the stirring member must all be realized by respective electric motors, which requires a large number of electric motors and transmissions connected to each of the electric motors, which increases the number of parts and devices, resulting in a complicated internal structure of the cooking appliance and high production costs.

[0004] Therefore, there is a need for a drive device, an ingredient cleaning device, and a cooking appliance that at least partially solves the above problems. Summary of the Invention

[0005] A set of simplified concepts is introduced in the "Summary of the Invention," which is further explained in detail in the "Detailed Description of the Embodiments." The "Summary of the Invention" is not intended to define the key features and essential technical features of the claimed technical solutions, nor is it intended to determine the protection scope of the claimed technical solutions.

[0006] In order to at least partially solve the above problems, the present application provides: A support member; a transmission shaft having a threaded hole and configured to be connected to an actuator member; a rotation drive member provided on the support member and rotatable around a rotation axis; a transmission threaded rod having an upper end provided on a support member and connected to a transmission shaft by a threaded hole, wherein the transmission threaded rod and the transmission shaft are rotatable relative to each other so that the transmission shaft moves linearly and are rotatable together about a rotation axis; a rotation limiting assembly configured to limit the transmission shaft for rotation with the transmission threaded rod; Equipped with One of the transmission screw rod and the transmission shaft functions as a rotation transmission member to which the rotation drive member is connected, and the rotation limiting assembly is provided on the support member and connected to the other of the transmission screw rod and the transmission shaft; When the rotary drive member rotates the rotary transmission member, the transmission shaft rotates when it is in the first extreme position and / or the second extreme position, and moves linearly at least between the first extreme position and the second extreme position. A drive unit is provided.

[0007] According to this solution, the relative rotation between the transmission screw rod and the transmission shaft can convert rotational motion into linear motion, and the linear motion of the transmission shaft relative to the transmission screw rod causes linear motion of an actuator member connected to the transmission shaft, thereby performing operations such as up and down movement of the stirring member and / or opening and closing of the lid.

[0008] When the driving force provided by the rotational drive member overcomes the static torque generated by the rotation limiting assembly, the transmission threaded rod can rotate together with the transmission shaft, rotationally driving the actuator member to perform operations such as material dropping and / or material dropping during material washing.

[0009] The drive device provided by this solution requires only one electric motor to rotate the rotary drive member and achieve the up and down movement and rotation of the actuator member, thereby achieving the up and down movement of the stirring member, and / or the opening and closing of the lid, and the dropping and / or dropping of materials during material washing, etc. Therefore, the number of electric motors and transmission parts connected thereto can be reduced, which enables reduction in production costs, simplification of the internal structure of the product, promotion of product miniaturization, and improvement of the automation level of the product.

[0010] By providing a rotation limiting assembly, this solution can provide static torque within a preset range. Even when the drive device is used for a long period of time, the static torque can be maintained within the predetermined range without increasing or decreasing. Therefore, the drive device used to drive the rotary drive member can stably provide the lowest possible output power, significantly reducing energy consumption costs.

[0011] Optionally, the rotation limiting assembly includes a limiting fixed member and a limiting moving member, with a restraining force therebetween that limits rotation of the limiting moving member about the rotation axis relative to the limiting fixed member, and the limiting moving member is connected to the other of the transmission screw rod and the transmission shaft and is rotatable relative to the limiting fixed member.

[0012] According to this solution, the constraint force between the fixed limiting member and the movable limiting member can limit relative rotation between them so that the threaded rod or shaft connected to the movable limiting member is not subjected to static torque generated by the constraint force. The rotation limiting assembly is composed of two parts, one of which is fixed and the other of which is movable together with the threaded rod or shaft. The constraint force between the two parts can easily generate static torque on the threaded rod or shaft. The rotation limiting structure is simple, easy to manufacture, and convenient to assemble.

[0013] Optionally, the limiting moving member and the limiting fixed member are attracted to each other by magnetic force. Thus, the restraining force is a magnetic attractive force. Undesirable resistance between the limiting moving member and the limiting fixed member, for example, resistance in directions other than the circumferential direction, is small, and almost no noise is generated. Furthermore, a constant restraining force can be provided, thereby generating a constant static torque, making the drive easier to control, and resulting in low energy consumption.

[0014] Further, the limiting fixing member may be disposed on the upper end or side of the limiting moving member, thereby providing a vertical or horizontal restraining force and allowing for a high degree of freedom in design.

[0015] Optionally, the rotation limiting assembly further comprises an offset member abutting the limiting fixing member such that the limiting fixing member is offset towards the limiting moving member, wherein opposing surfaces of the limiting moving member and the limiting fixing member abut and both are provided with the limiting structure.

[0016] According to this solution, the offset member applies downward pressure to the limiting and fixing member so that the opposing surfaces of the limiting and fixing members always abut against each other. Therefore, the binding force between them is pressure. When the rotating and fixing member rotates, the circumferential components of both pressure and friction can generate static torque. The rotation limiting structure has low material costs, is easy to manufacture, and is convenient to assemble.

[0017] Optionally, the limiting structure includes limiting teeth arranged circumferentially defined by the axis of rotation.

[0018] According to this solution, regardless of the rotational position of the fixed limiting member and the movable limiting member relative to each other, there is always a circumferential component between them that generates a static torque, which makes it easier to control and operate the drive device.

[0019] Optionally, the transmission shaft rotates between a first extreme position and a second extreme position while moving linearly.

[0020] According to this solution, the transmission shaft can drive the actuator member to move linearly up and down during rotation.

[0021] Optionally, the transmission shaft functions as the rotation transmission member, the rotation drive member is in the shape of a cylinder and has a guide hole, the transmission screw rod and the transmission shaft are located within the guide hole, and the transmission shaft moves linearly along the surface of the guide hole.

[0022] According to this solution, the rotary drive member can directly rotate the transmission shaft, and the cylindrical rotary drive member can separate the connected transmission threaded rod and transmission shaft from the outside of the material washing chamber, etc., to prevent interference with the movement of external materials between them. Furthermore, the guide hole allows the transmission shaft to move up and down in a predetermined direction within the guide hole, preventing the transmission shaft from shifting during movement.

[0023] Optionally, the guide hole is a non-circular hole, so that the rotation of the transmission shaft relative to the rotary drive member can be limited so that the two rotate together. Additionally / alternatively, the upper portion of the rotary drive member has a larger outer dimension than the lower portion, or the rotary drive member has an outer dimension that gradually decreases from the upper portion to the lower portion. This allows the overall structure of the drive device to be more compact, saving space for accommodating the rotary drive member. Therefore, the container accommodating the rotary drive member, such as a material washing chamber, material holding chamber, or pot, can have a large volume.

[0024] Optionally, the support member has a downwardly depressed receiving groove in its center, the rotation limiting assembly is positioned in the receiving groove, and the upper end of the transmission screw rod extends upward into the receiving groove and is connected to the rotation limiting assembly.

[0025] According to this solution, the overall structure of the drive device is compact, facilitating miniaturization of the product.

[0026] Optionally, the transmission shaft moves linearly between the first and second extreme positions without rotation.

[0027] According to this solution, the transmission shaft can drive the actuator member to move linearly up and down without rotating.

[0028] Optionally, the transmission screw rod functions as a rotational transmission member, the rotational drive member is connected to the upper end of the transmission screw rod, and the support member comprises a cylindrical pillar extending downward, with the transmission screw rod and transmission shaft being disposed within the pillar.

[0029] According to this solution, the rotary drive member can directly rotate the transmission shaft, and the cylindrical support can separate the parts of the transmission screw rod and the transmission shaft that are connected to each other from the outside, such as the material washing chamber, and prevent the movement of external materials between them from being hindered.

[0030] Optionally, the drive device further comprises a guide cylinder located on the support and having a guide hole, the limiting movement member is disposed in the guide cylinder, the transmission screw rod and the transmission shaft are located in the guide hole, and the transmission shaft moves linearly along the surface of the guide hole.

[0031] According to this solution, the guide hole can ensure that the transmission shaft moves up and down in a preset direction within the guide hole, and can prevent the transmission shaft from shifting during movement.

[0032] Optionally, the drive device further comprises a fixed member, wherein the rotary drive member has a restricting hole at its center, the fixed member is fixed to the restricting hole and is positioned above the restricting fixing member, and the upper end of the transmission screw rod extends and is connected to the fixed member.

[0033] According to this solution, the transmission screw rod and the rotary driving member can be easily connected together and rotate together. The mounting structure is simple, easy to manufacture and convenient to assemble.

[0034] Optionally, the rotary drive member comprises a gear portion, and the drive device further comprises a rotary connecting member configured to be connected to the output of the drive device and having an outer circumferential surface with teeth, the gear portion being engaged with the teeth of the rotary connecting member.

[0035] According to this solution, the gear transmission provides high transmission efficiency and a compact structure, which can facilitate miniaturization.

[0036] Optionally, the support member includes an upper portion and a lower portion located below and removably connected to the upper portion, wherein the gear portion and the rotary connecting member are both sandwiched between the lower portion and the upper portion, and the upper end of the transmission screw rod is disposed on the upper portion.

[0037] According to this solution, the upper and lower support members can limit the axial movement of the rotary drive member and the rotary connecting member, respectively, but do not limit their rotational movement. The removable support members also facilitate assembly of the rotary drive member and the rotary connecting member.

[0038] Optionally, the rotary connection member comprises a connection port configured to engage with the output portion and having an inner circumferential wall with spaced apart, vertically extending first ribs provided thereon, the output portion comprising vertically extending second ribs, the first ribs configured to circumferentially abut the second ribs when the output portion is engaged with the connection port.

[0039] According to this solution, the engagement structure enables the output part of the drive device to be easily engaged or disengaged with the rotary connecting member, and the engagement structure is simple and easy to manufacture.

[0040] Optionally, a plurality of magnets are provided on the periphery of the rotary drive member, the magnets being spaced apart in a circumferential direction defined by the axis of rotation such that the drive device drives the rotary drive member by magnetic force.

[0041] According to this solution, the rotary drive member is driven by magnetic force without any connection by mechanical structures between the drive device and the rotary drive member, which prevents resistance caused by movement between mechanical structures, prevents wear of parts and reduces noise. Magnetic drive has high motor efficiency and low energy consumption.

[0042] Optionally, the rotary drive member is located on and rotatable relative to the support member, the rotary drive member being circular disc shaped.

[0043] According to this solution, the rotary drive member can rotate steadily with the support of the support member, and the circular disk-shaped rotary drive member can function as an upper cover.

[0044] Optionally, the transmission shaft has an axial bore with upper and lower limiting portions therein, and the transmission threaded rod has a radially protruding rod end that is restricted within the axial bore and abuts circumferentially against the lower limiting portion when the transmission shaft is in a first extreme position, and that abuts circumferentially against the upper limiting portion when the transmission shaft is in a second extreme position.

[0045] According to this solution, by providing a limiting portion, the transmission shaft can rotate together with the threaded transmission rod when the threaded transmission rod is in an extreme position, and the circumferential contact between the limiting portion and the rod end is unidirectional. Therefore, the direction of force transmission between the transmission shaft and the threaded transmission rod at the extreme position is unidirectional. With this realization, when the transmission shaft is in the extreme position, force can be transmitted in one direction between the transmission shaft and the threaded transmission rod, causing them to move together, and in the opposite direction, there is no contact between the limiting portion and the rod end, allowing the transmission shaft to be easily separated from the rod end of the threaded transmission rod.

[0046] Optionally, the rod end has a polygonal shaped circumferential surface configured to abut both the upper and lower limits.

[0047] According to this solution, the transmission threaded rod has a simple structure and is easy to manufacture.

[0048] Optionally, the rod end comprises an upper protrusion that protrudes upward and / or a lower protrusion that protrudes downward, the upper protrusion being configured to abut the upper limiting portion and the lower protrusion being configured to abut the lower limiting portion.

[0049] According to this solution, the abutment between the protrusion and the limiting portion allows the transmission shaft to be more reliably connected to the transmission screw rod in the extreme positions, so that they can maintain a stable rotation together.

[0050] Optionally, the upper limiter and the transmission shaft are configured as one or separate components, and / or the lower limiter and the transmission shaft are configured as one or separate components.

[0051] This solution allows reducing assembly steps in the integrated solution and facilitating assembly of the transmission threaded rod in the transmission shaft in the separate component solution.

[0052] Optionally, the upper limiting portion and the transmission shaft are configured as one piece, and the drive device further comprises a limiting member, a part of which is inserted into the axial hole from below and formed together with the lower limiting portion.

[0053] According to this solution, during assembly, the transmission screw rod can first enter the axial hole from below the transmission shaft, and then the restricting member is assembled, resulting in high assembly efficiency.

[0054] Optionally, the drive device is applied to a material washing device, wherein the actuator member comprises an agitating member and a material washing compartment lid connected to the agitating member, and the transmission shaft rotates in both the first extreme position and the second extreme position, but rotates in the opposite direction when the rotary drive member rotationally drives the rotary transmission member.

[0055] According to this solution, only one electric motor is required to rotate the rotary drive member to achieve operations such as opening and closing the material outlet, dropping material during material washing, and / or dropping material.

[0056] Optionally, the drive device is applied to the material holding compartment, the actuator member includes a bottom cover, and the transmission shaft rotates at the second extreme position when the rotary drive member rotationally drives the rotary transmission member. Thus, only one electric motor is required to rotationally drive the rotary drive member to achieve the operations of opening and closing the bottom cover and dropping the material during material dropping.

[0057] Alternatively, the drive device is applied to the pot, the actuator member includes a stirring member, and the transmission shaft rotates in the second extreme position when the rotary drive member rotationally drives the rotary transmission member.

[0058] According to this solution, only one electric motor is required to rotate the rotary drive member to achieve the up and down movement of the stirring member and the material dropping action during material washing.

[0059] Another aspect of the present application is an ingredient cleaning device for cooking utensils, comprising: a drive device according to any one of the above aspects; a material washing compartment body forming a material washing chamber having a material discharge outlet, the support member being located on an upper portion of the material washing compartment body; an agitating member that functions as an actuator member and is connected to the transmission shaft; a material washing compartment lid located below the agitating member and connected to the agitating member; Equipped with the material washing compartment cover is in a closed position to cover the material discharge port when the transmission shaft is in a first extreme position, and in an open position to open the material discharge port when the transmission shaft is in a second extreme position; When the rotary drive member rotates the rotary transmission member, the transmission shaft rotates in both the first and second extreme positions, but in opposite directions so that the agitating member rotates, and the transmission shaft moves at least linearly between the first and second extreme positions so that the material washing compartment lid moves between the open and closed positions. A material cleaning device is provided.

[0060] According to this solution, only one electric motor is required to rotate the rotary drive member to achieve the up and down movement and rotation of the actuator member, thereby achieving the opening and closing of the material discharge port and the material dropping and / or dropping during material washing. Therefore, the number of electric motors and the transmission parts connected thereto can be reduced, thereby enabling reduction in production costs, simplification of the internal structure of the product, promotion of product miniaturization, and improvement of the automation level of the product.

[0061] Optionally, the drive device further comprises a top cover that functions as a support member and covers the material washing compartment body, the top cover and the material washing compartment body being configured as one piece or as separate components that may or may not be removable.

[0062] According to this solution, the top cover not only functions as a support member for the drive device and can support the drive structure such as the transmission screw rod, but also can cover the material washing chamber, thereby reducing the number of parts, simplifying the structure of the material washing device, and facilitating its manufacture and assembly.

[0063] Optionally, the material washing compartment body includes a waste discharge outlet, the material washing compartment lid includes a seal portion, an outer peripheral surface of the seal portion abutting an inner peripheral surface of the material washing compartment body, and the transmission shaft drives the material washing compartment lid to move linearly between a first closed position in which the seal portion is located above the waste discharge outlet and a second closed position in which the seal portion is located below the waste discharge outlet.

[0064] According to this solution, the material washing compartment cover can also serve as a waste discharge valve, thus eliminating the need for a waste discharge valve, saving costs, reducing the number of parts in the material washing device, and facilitating product miniaturization.

[0065] Optionally, the material washing apparatus comprises the above-mentioned drive device, and the material washing compartment lid includes a cover plate, an auxiliary cover plate, and a seal portion arranged between the cover plate and the auxiliary cover plate, the cover plate is sandwiched between a stirring member and a restricting member fixedly connected to each other, the outer surface of the seal portion abuts against the inner surface of the material washing compartment body, and the auxiliary cover plate, the seal portion, and the cover plate are fixedly connected.

[0066] According to this solution, the cover plate, the auxiliary cover plate and the seal do not have to rotate together with the stirring member, but the restricting member rotates together with the stirring member and the transmission shaft.

[0067] Optionally, the material washing apparatus comprises the drive device described above, wherein the minimum distance between the bottom of the rotary drive member and the agitating member is 2 mm or more, or the minimum distance between the bottom of the support member and the agitating member is 2 mm or more.

[0068] This solution can prevent material from sticking between the drive and the agitator during material washing, allowing the agitator to maintain a normal material drop.

[0069] Yet another aspect of the present application provides a cooking utensil comprising a pot body, a pot lid, and an ingredient washing device according to any of the above-described implementations, wherein the pot lid is configured to cover the pot body such that a cooking chamber is formed between the pot lid and the pot body, and the ingredient washing device is disposed on the pot lid.

[0070] According to this solution, the pot lid is removable, so that by placing the material cleaning device on the pot lid it can be removed and cleaned together with the pot lid.

[0071] Optionally, the cooking appliance comprises a host support and a drive device configured to drive the rotary drive member, the pot body seated on a base of the host support and the drive device disposed on the host support or the pot lid.

[0072] According to this solution, with the drive device located on the host support, it is not possible to place electrical components on the pot lid. Therefore, there is no need to consider waterproofing when manufacturing the pot lid, and it is more convenient to clean it. With the drive device located on the pot lid, the drive device can maintain connection with the corresponding position of the material washing device, and the material washing device and / or the stirring member in the material washing compartment lid can be driven at any desired moment, facilitating operation.

[0073] Optionally, the cooking appliance further comprises an ingredient storage compartment and an ingredient delivery compartment disposed on the host support and located above the pot lid, the support chamber being disposed in the ingredient delivery compartment, the drive device being housed in the support chamber from above, and the output of the drive device extending downward from the bottom wall of the support chamber.

[0074] According to this solution, the drive device can be arranged in the material delivery section, and the two can move up and down relative to each other. The drive device has a simple assembly structure, is easy to manufacture, and is convenient to assemble.

[0075] Optionally, a vertically extending device guide surface is provided within the support chamber, and the drive device is disposed within the support chamber along the device guide surface from top to bottom. This facilitates assembly of the drive device and increases assembly efficiency. Additionally / alternatively, both the material delivery compartment and the drive device may be at least partially disposed within the material storage compartment, or at least partially disposed outside the material storage compartment but within a space enclosed by the material storage compartment. Therefore, the drive device can be disposed in a location other than the pot lid, which facilitates and ensures safety when users clean the pot lid and the material cleaning device. Furthermore, this solution eliminates the need to consider waterproofing during the manufacturing stage of the pot lid, thereby simplifying the manufacturing stage.

[0076] Optionally, the material delivery section is movable between at least a first position and an intermediate position located below the first position, the drive device moves together with the material delivery section between the first position and the intermediate position, and the drive device is docked with a corresponding position of the material cleaning device when in the intermediate position; and / or The material delivery compartment is movable at least between an intermediate position and a second position located below the intermediate position, and the drive device remains stationary when the material delivery compartment moves between the intermediate position and the second position, and when the material delivery compartment is in the second position, the material delivery compartment communicates with the material storage compartment and the material washing chamber.

[0077] According to this solution, the material delivery section has two sections of movement relative to the drive device, and the material delivery section can drive the drive device to move together with the drive device or can move independently. The independent movement of the material delivery section can switch between a state in which the material delivery section communicates with the material washing chamber and a state in which the material delivery section does not communicate with the material washing chamber, and perform the operation of material supply and material supply stop.

[0078] Optionally, the cooking appliance further comprises a drive device arranged in the pot lid and configured to drive the rotary drive member.

[0079] According to this solution, the drive device in the pot lid can maintain a connection with the corresponding position of the material washing device, and the material washing device and / or the stirring member in the material washing compartment lid can be driven at any desired moment, facilitating operation.

[0080] Yet another aspect according to the present application provides another cooking utensil comprising a pot body, a pot lid, a host support, and an ingredient washing apparatus according to any of the above aspects, wherein the pot lid is configured to cover the pot body such that a cooking chamber is formed between the pot lid and the pot body, the pot body being seated on a base of the host support, and the ingredient washing apparatus being disposed on the host support and positioned above the pot lid.

[0081] This solution makes it easier to clean the pot lid by locating the material cleaning device elsewhere than on the pot lid. [Brief explanation of the drawings]

[0082] The following drawings of the present application are used as part of the present application for understanding the present application. The drawings show the manner of implementation of the present application and its description, and are used to explain the principles of the present application.

[0083] [Figure 1] 1 is a perspective view of a cooking utensil according to a preferred embodiment of the present application, with the pot body assembly separated from the base; [Figure 2A] 2 is a longitudinal cross-sectional view of the cookware shown in FIG. 1, the cookware being in an initial state. [Figure 2B] 2 is a cross-sectional view of the cookware shown in FIG. 1, with the cookware in an initial state. [Figure 3] 2 is a longitudinal cross-sectional view of the cooking appliance shown in FIG. 1, the cooking appliance being in a state of preparation for ingredient feeding, a state of completion of ingredient feeding, or a state of ingredient washing. [Figure 4] 2 is a longitudinal cross-sectional view of the cooking utensil shown in FIG. 1, the cooking utensil being in an ingredient dispensing state; [Figure 5]2 is a cross-sectional view of the cooking appliance shown in FIG. 1, the cooking appliance in an ingredient dispensing state. [Figure 6] 2 is a longitudinal cross-sectional view of the cookware shown in FIG. 1, the cookware in a drained state. [Figure 7] 2 is a longitudinal cross-sectional view of the cooking utensil shown in FIG. 1, the cooking utensil being in the ingredient drop state; [Figure 8] 2B is a longitudinal cross-sectional view of the material storage mechanism and the material delivery mechanism shown in FIG. 2A. [Figure 9] 2B is a cross-sectional view of the material storage mechanism and the material delivery mechanism shown in FIG. 2A. [Figure 10] FIG. 9 is an exploded perspective view of the material storage mechanism and the material delivery mechanism shown in FIG. 8. [Figure 11] 9 is another exploded perspective view of the material storage mechanism and the material delivery mechanism shown in FIG. 8. [Figure 12] FIG. 2B is an exploded perspective view of the drive unit shown in FIG. 2A. [Figure 13] FIG. 2B is a perspective view of the drive unit shown in FIG. 2A and the structure connected thereto. [Figure 14] 14 is a cross-sectional view of the drive unit and the structure connected thereto shown in FIG. 13, with the transmission shaft in a first extreme position. [Figure 15] 14 is a cross-sectional view of the drive unit and the structure connected thereto shown in FIG. 13, with the transmission shaft in a second extreme position. [Figure 16] FIG. 14 is an exploded perspective view of the drive unit and connected structures shown in FIG. 13. [Figure 17] FIG. 14 is another exploded perspective view of the drive unit and connected structures shown in FIG. 13. [Figure 18] 14 is a half-sectional view of the drive unit and the structure connected thereto shown in FIG. 13, with the transmission shaft in a first extreme position. [Figure 19] 14 is a half-sectional view of the drive unit and the structure connected thereto shown in FIG. 13, with the transmission shaft in a second extreme position. [Figure 20] FIG. 14 is an exploded perspective view of a portion of the drive unit shown in FIG. 13 and structures connected thereto. [Figure 21] FIG. 21 is a half cross-sectional view of the transmission shaft shown in FIG. 20. [Figure 22] FIG. 21 is a perspective view of the restricting member shown in FIG. 20. [Figure 23] 1 is a perspective view of a drive device and a structure connected thereto according to another mode of realization of the present application; [Figure 24] 24 is a cross-sectional view of the drive unit and the structure connected thereto shown in FIG. 23, with the transmission shaft in a first extreme position. [Figure 25] 24 is a cross-sectional view of the drive unit and the structure connected thereto shown in FIG. 23, with the transmission shaft in a second extreme position. [Figure 26] FIG. 24 is an exploded perspective view of the drive unit and connected structures shown in FIG. 23. [Figure 27] FIG. 24 is another exploded perspective view of the drive unit and structure connected thereto shown in FIG. 23. [Figure 28] 10 is a perspective view of a drive device and a structure connected thereto according to yet another embodiment of the present application; FIG. [Figure 29] FIG. 29 is an exploded perspective view of the rotation limiter assembly shown in FIG. 28. [Figure 30] FIG. 29 is another exploded perspective view of the rotation limiter assembly shown in FIG. 28. [Figure 31] 4 is a cross-sectional view of a drive device and a structure connected thereto according to yet another embodiment of realization of the present application, the transmission shaft being in a first extreme position. [Figure 32] 32 is a cross-sectional view of the drive unit and the structure connected thereto shown in FIG. 31, with the transmission shaft in a second extreme position. [Figure 33] FIG. 32 is a perspective view of the transmission screw rod shown in FIG. 31. [Figure 34] FIG. 32 is another perspective view of the transmission screw rod shown in FIG. 31. [Figure 35] FIG. 2 is an exploded perspective view of the cooking utensil shown in FIG. 1. [Figure 36] FIG. 36 is a perspective view of the top cover shown in FIG. 35. [Figure 37] FIG. 36 is a perspective view of the pot lid shown in FIG. 35. [Figure 38]FIG. 36 is an exploded perspective view of the pot lid shown in FIG. 35. [Figure 39] FIG. 39 is a perspective view of the detachable lid shown in FIG. 38. DETAILED DESCRIPTION OF THE INVENTION

[0084] In the following description, numerous specific details are provided to provide a deeper understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be practiced without one or more of these details. In other embodiments, some technical features well known in the art are not described to avoid confusion with the present application.

[0085] In order to fully understand the present application, detailed descriptions are provided in the following description. Obviously, the implementation of the present invention is not limited to specific details well known to those skilled in the art. Although preferred implementations of the present application are described in detail below, in addition to these detailed descriptions, the present application may also have other implementations.

[0086] It should be noted that the terminology used herein is for the purpose of describing particular implementations and is not intended to limit example implementations according to the present application. As used herein, the singular is intended to include the plural, unless the context clearly dictates otherwise. Furthermore, it should be understood that when the terms "comprise" and / or "include" are used herein, they indicate the presence of referenced features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or combinations thereof.

[0087] Ordinal numbers such as "first" and "second" used in this application are merely identifiers and do not have any other meaning such as a specific order. Furthermore, for example, the term "first portion" does not itself imply the existence of a "second portion," and the term "second portion" does not itself imply the existence of a "first portion."

[0088] It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "medial," "lateral," and similar expressions used herein are for purposes of illustration only and are not limiting.

[0089] Next, exemplary implementations according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary implementations may be implemented in various different forms and should not be construed as being limited to the implementations set forth herein. It should be understood that these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary implementations to those skilled in the art.

[0090] The present application provides a cooking appliance that can perform multiple functions such as automatic ingredient feeding, water supply, ingredient washing, and ingredient dropping.

[0091] 1 to 39 schematically show preferred embodiments of the cooking device of the present application.

[0092] 1, 2A, and 2B, the cookware includes a host body assembly 1 and a pot body 2 assembly. The host body assembly 1 includes a host support 11 and a base 12. The host support 11 is positioned vertically. The base 12 is located at the bottom of the host support 11 and is connected to the host support 11. The pot body 2 assembly is configured to be placed on and removed from the base 12, so that the pot body 2 assembly can be placed in any desired location, such as on a dining table.

[0093] The pot body 2 assembly includes a pot body 2 and a pot lid 3 that covers the pot body 2. The pot body 2 is removably seated on the base 12. The pot body 2 includes an inner pot 4 and an outer pot. The inner pot 4 is removably disposed on the outer pot. The pot lid 3 is provided with a sealing ring. When the pot lid 3 covers the pot body 2, the sealing ring abuts against the inner pot 4 and seals the gap between the inner pot 4 and the pot lid 3. The pot lid 3 is removably connected to the pot body 2. In a preferred embodiment, the pot lid 3 is configured to be removed as a whole from the pot body 2 to facilitate cleaning of the pot lid 3. When the pot lid 3 covers the pot body 2, a cooking space is formed between the pot lid 3 and the inner pot 4.

[0094] Generally, the heating device and a power supply module configured to supply power to the heating device are provided on the base 12. When the pot body 2 assembly is placed on the base 12, the power supply module is configured to supply power to the heating device so that the heating device can heat the inner pot 4 within the pot body. In a preferred embodiment, the heating device performs electromagnetic heating. For example, the heating device is configured to generate heat for heating the inner pot 4. It can be understood that in other embodiments (not shown), the heating device can be configured with another structure, such as heating by an electric heating wire. For example, the power supply module can be a plug that fits into an external power source. When plugged in, the plug can supply power to the heating device. Alternatively, the power supply module can be configured as a battery housed in the base 12.

[0095] 2A to 7, the host body assembly 1 is further provided with an ingredient storage mechanism 13 and an ingredient delivery mechanism 14. The ingredient storage mechanism 13 includes an ingredient storage compartment 15 in which ingredients can be stored. The ingredients can be food ingredients such as rice, millet, corn, black beans, red beans, mung beans, etc. The ingredient storage compartment 15 has a lateral outlet. In other words, the outlet is disposed on the side of the ingredient storage compartment 15 so that the ingredients in the ingredient storage compartment 15 flow out through the outlet. In the illustrated embodiment, the outlet is disposed at the bottom of the ingredient storage compartment 15, which can further assist the ingredients in the ingredient storage compartment 15 to flow out through the outlet under the influence of gravity.

[0096] As shown in Figure 2B, the material delivery mechanism 14 includes a material delivery section 16. The material delivery section 16 has a material inlet 17, a material outlet 18 disposed below the material inlet 17, and a solid material delivery passage P1 disposed between the material inlet 17 and the material outlet 18 and extending vertically. Referring to Figure 10, the material delivery section 16 has a water inlet 19, a water outlet 20 disposed below the water inlet 19, and a liquid material delivery passage P2 (Figure 9) disposed between the water inlet 19 and the water outlet 20 and extending vertically.

[0097] The material inlet 17 is disposed on a side wall of the material delivery compartment 16. The material outlet 18 is disposed on a bottom wall of the material delivery compartment 16. The material delivery compartment 16 is movable at least between a first position (corresponding to an initial state as shown in FIG. 2A ) and a second position (corresponding to a material drop state as shown in FIGS. 4 and 5 ) located below the first position. When the material delivery compartment 16 is in the first position, it is not in communication with either the outlet of the material storage compartment 15 or the material inlet 7 of the material cleaning device 5 (described below). When the material delivery compartment 16 is in the second position, it is in communication with both the outlet of the material storage compartment 15 and the material inlet 7. In the material drop state, as shown in FIG. 5 , the material inlet 17 is configured to be in communication with the outlet of the material storage compartment 15, and the material outlet 18 is configured to be in communication with the material inlet 7 of the material cleaning device 5 so that material in the material storage compartment 15 enters the material delivery compartment 16 through the material inlet 17 and enters the material cleaning device 5 through the material outlet 18.

[0098] Material delivery mechanism 14 As shown in FIGS. 8 to 11 , the material delivery mechanism 14 further includes a material delivery support 62 and a support lid 63 disposed within the material delivery compartment 15. The top of the material delivery support 62 is open. The support lid 63 removably covers the top of the material delivery support 62 with fasteners such as screws. The bottom of the material delivery support 62 is open and is fixed to the bottom wall of the material storage compartment 15. At least a portion of the material delivery compartment 16 extends into the material delivery support 62 from below through the open bottom of the material delivery support 62. To ensure stable movement of the material delivery compartment 16, the material delivery support 62 is provided with a vertically extending material compartment guide surface F1. The bottom of the material storage compartment 15 may also be provided with a material compartment guide surface F1. The material compartment guide surface F1 is adapted to the outer shape of the material delivery compartment 16. The material delivery section 16 is configured to move up and down along the material section guide surface F1 relative to the material delivery support 62. This solution can ensure that the material delivery section 16 moves up and down in a preset direction within the material delivery support 62, and can prevent the material delivery section 16 from shifting during the movement.

[0099] As shown in FIG. 10 , the material delivery support 62 is provided with an avoidance opening. When the material delivery compartment 16 moves to the second position, the material inlet 17 of the material delivery compartment 16 communicates with the material storage compartment 15 through the avoidance opening, which is configured to prevent the material delivery support 62 from interfering with the material delivery. An attachment structure is provided above the avoidance opening. The flexible member 64 is configured to be attached to the attachment structure. The flexible member 64 abuts against the side wall of the material delivery compartment 16 to seal the gap between the material delivery compartment 16 and the material delivery support 62 and prevent material from entering the material delivery support 62.

[0100] The material delivery mechanism 14 further includes a first drive device 50 configured to drive the material delivery section 16 to move between at least a first position and a second position. The first drive device 50 includes a first electric motor 51, a threaded rod member 52, and a nut member 53 threadably connected to the threaded rod member 52. The threaded rod member 52 is connected to an output shaft of the first electric motor 51. The first electric motor 51 is configured to rotate the threaded rod member 52 forward and backward. When the first electric motor 51 rotates the threaded rod member 52 forward and backward, the nut member 53 can move up and down correspondingly. The nut member 53 is connected to an outer wall of the material delivery section 16. Therefore, the nut member 53 can drive the entire material delivery section 16 to move up and down between the first position and the second position.

[0101] The bottom of the threaded rod member 52 is connected to the bottom wall of the material storage compartment 15. For example, a cylinder may be provided in the bottom wall, and the bottom of the threaded rod member 52 may have a circular hole, into which the cylinder is inserted. A non-circular hole may be provided in the top of the threaded rod member 52, and the first driving device 50 further includes a motor connection member 54 having a non-circular hole. The motor connection member 54 is located in the non-circular hole in the top of the threaded rod member 52. The output shaft of the first motor 51 is inserted into the non-circular hole in the motor connection member 54. Thus, the first motor 51 is connected to the threaded rod member 52 and can drive it to rotate. The non-circular hole referred to herein may be any suitable hole, such as a square hole or a D-shaped hole.

[0102] It can be understood that the material delivery section 16 can only move within the range defined by the threaded rod member 52. Preferably, the range of up and down movement of the material delivery section 16 is 0 to 200 mm. It may also be preferable to have at least one intermediate position (described below) where the material delivery section 16 stops between the first and second positions. The position of the material delivery section 16 can be controlled by providing a position detection device 98 within the material delivery mechanism 14. As shown in FIG. 11 , the material delivery support 62 includes a mounting groove 78 into which the position detection device 98 can be removably attached from above, for example, by insertion.

[0103] The position detection device 98 is configured to detect the position of the material delivery section 16 within the host body assembly 1. When the position detection device 98 detects that the material delivery section 16 is in the first position, the second position, or an intermediate position, the position detection device 98 can send a signal to the first electric motor 51 to stop driving the material delivery section 16 and move it.

[0104] In one implementation, the position detection device 98 includes a first optocoupler substrate, a second optocoupler substrate, and a third optocoupler substrate spaced apart vertically. The second optocoupler substrate and the third optocoupler substrate are configured to detect the on / off state of a signal. The material delivery section 16 may include a position detection unit 99 extending toward a side of the position detection device 98. When the material delivery section 16 moves up or down so that the position detection unit 99 penetrates the first optocoupler substrate, the position detection unit 99 blocks a signal, such as light, emitted by the first optocoupler substrate. Thus, the position detection device 98 determines that the material delivery section 16 has reached the first position. When the material delivery section 16 moves up or down so that the position detection unit 99 penetrates the second optocoupler substrate, the position detection unit 99 blocks a signal, such as light, emitted by the second optocoupler substrate. Thus, the position detection device 98 determines that the material delivery section 16 has reached the intermediate position. When the material delivery section 16 moves up or down such that the position detection unit 99 penetrates the third optocoupler board, the position detection unit 99 blocks a signal, such as light, emitted by the third optocoupler board. Thus, the position detection device 98 determines that the material delivery section 16 has reached the second position. It can be understood that in other implementations not shown, other suitable position detection devices 98, such as a microswitch, can be selected.

[0105] In order to fix the first electric motor 51 and the position detection device 98, the support upper cover 63 has spaced apart pressure ribs 65 extending downward, the pressure ribs 65 abutting against the first electric motor 51 so as to press the first electric motor 51 from above, and another pressure rib 65 abutting against the position detection device 98 so as to press the position detection device 98 from above.

[0106] Material Cleaning Equipment As shown in FIGS. 2A to 7, the cooking utensil further includes an ingredient washing apparatus 5. In the illustrated implementation, the ingredient washing apparatus 5 is disposed on the pot lid 3. Since the pot lid 3 is removable, by disposing the ingredient washing apparatus 5 on the pot lid 3, it can be removed and washed together with the pot lid 3. In an implementation not shown, the ingredient washing apparatus 5 is disposed on the host support 11 and can be disposed on the pot lid 3. The structure of the ingredient washing apparatus 5 will be described herein by using the exemplary implementation as an example.

[0107] The material washing apparatus 5 is disposed below the material storage compartment 15 and is disposed on the same side of the pot lid 3 and the host support 11. Preferably, a portion of the material washing apparatus 5 is removably disposed within the pot lid 3 to facilitate removal and cleaning of the material washing apparatus 5. The material washing apparatus 5 comprises a material washing compartment body 6 having a material discharge outlet 8. The material washing compartment body 6 has a material washing chamber. The material washed in the material washing chamber can be discharged via the material discharge outlet 8. The material washing compartment body 6 further has a material inlet 7. The material in the above-mentioned material delivery compartment 16 can enter the material washing chamber via the material inlet 7.

[0108] The material washing compartment body 6 and the pot lid 3 are integrally formed as a single part. The material washing compartment body 6 can be arranged to extend vertically, ensuring that the material washing chamber has a uniform width from top to bottom. The material washing compartment body 6 can also be arranged to extend diagonally from the top and bottom toward the interior of the material washing chamber. In other words, the material washing chamber is wider at the bottom and narrower at the top to reduce material residue. Furthermore, the inner surface of the material washing compartment body 6 is arranged to have a smooth surface to reduce material residue.

[0109] The material washing apparatus 5 further includes an agitating member 21 disposed in the material washing compartment body 6 and a material washing compartment lid 10 disposed below the agitating member 21. The material washing compartment lid 10 is movably disposed within the material washing compartment body 6. Specifically, the material washing compartment lid 10 is movable between an open position in which the material discharge port 8 is open and a closed position in which the material discharge port 8 is covered. As shown in FIGS. 2A and 2B , the material washing compartment lid 10 is disposed in an upper position, which is a closed position that covers the material discharge port 8. As shown in FIG. 7 , the material washing compartment lid 10 is moved to a lower position, which is an open position that opens the material discharge port 8. At this time, the material in the material washing chamber can fall into the inner pot 4 through the material discharge port 8. The material washing compartment body 6, the agitating member 21, and the material washing compartment lid 10 form a material washing compartment assembly.

[0110] The agitating member 21 is connected to the material washing compartment lid 10. The agitating member 21 and the material washing compartment lid 10 can move together between an open position and a closed position, and the agitating member 21 can rotate relative to the material washing compartment lid 10. In other words, when the agitating member 21 rotates, the material washing compartment lid 10 does not rotate.

[0111] In one embodiment, the stirring member 21 can rotate when performing the material washing and material dropping operations. Preferably, the stirring member 21 has a conical guide surface that is inclined outward from top to bottom in the radial direction of the stirring member 21. In this solution, when the stirring member 21 is rotating, the material on it can be more easily thrown by the inclined guide surface in addition to being affected by centrifugal force. Furthermore, the inclined guide surface also makes it easier for the material to slide downward, which can reduce material residue in the material washing chamber.

[0112] Preferably, as shown in Figure 13, the upper surface of the stirring member 21 is further provided with spoiler ribs and spoiler columns. The combined use of the spoiler ribs and spoiler columns can spoil the material and water in the material washing chamber during rotation, so as to make the washed material cleaner. Those skilled in the art can understand that only spoiler ribs or only spoiler columns can be provided based on needs.

[0113] The spoiler column is configured to have the shape of a circular cylinder and is arranged vertically. In another embodiment not shown, the spoiler column can be arranged diagonally. The spoiler column can be inclined relative to the agitating member 21 or perpendicular to the agitating member 21. Alternatively, the cross-sectional shape of the spoiler column can be configured as a square, diamond, oval, polygon, etc. The spoiler column can be formed integrally with the agitating member 21, or the spoiler column and the agitating member 21 can be two separate parts. The spoiler ribs can be configured to have the shape of a straight line, a circular arc, an S-shape, etc. The number of spoiler ribs can be one or more.

[0114] The material washing apparatus 5 further comprises a top cover 22. The top cover 22 is configured to cover the material washing compartment body 6. The material inlet 7 is disposed in the top cover 22. The top cover 22 and the material washing compartment body 6 may be configured as an integral unit or as separate components that may or may not be removable. Preferably, the top cover 22 is removably connected to the material washing compartment body 6 to facilitate removal and cleaning of the material washing apparatus 5.

[0115] The material washing device 5 further comprises a drive device configured to drive in movement and / or rotation the stirring member 21 and the material washing compartment lid 10. In particular, Figures 2A to 7 and 13 to 22 schematically show a first preferred embodiment of the drive device.

[0116] The drive device comprises a support member, a transmission shaft 23 with a threaded hole, a rotary drive member 24, and a transmission threaded rod 30. The support member is used to support the entire drive device on the material washing compartment body 6. The support member is located on the top of the material washing compartment body 6. In the illustrated implementation, the top cover 22 serves as the support member. Of course, the support member can be a separate component fixed to the pot lid 3. Apart from the support member, the above-mentioned parts of the drive device are arranged inside the material washing chamber.

[0117] The transmission shaft 23 is arranged vertically and is configured to be connected to an actuator member. It should be noted that the actuator member is a component used to perform cooking operations such as ingredient washing, ingredient dropping, and waste discharge. In this embodiment, the actuator member includes the stirring member 21 and the ingredient washing compartment lid 10. The bottom of the transmission shaft 23 is connected to the stirring member 21. For example, the two can be configured as an integral unit. The rotation drive member 24 is arranged on a support member, supported above by the support member, and can rotate about a rotation axis Ax.

[0118] The upper end of the transmission screw rod 30 is disposed on the support member. The transmission screw rod 30 is connected to the transmission shaft 23 through a threaded hole. Specifically, the lower end of the transmission screw rod 30 passes through the threaded hole. The transmission screw rod 30 is positioned in the threaded hole and is threadably connected to the transmission shaft 23. Furthermore, the transmission screw rod 30 and the transmission shaft 23 can rotate relative to each other such that the transmission shaft 23 moves linearly and the two can rotate together around the rotation axis Ax. The linear movement of the transmission shaft 23 can drive the stirring member 21 and the material washing compartment cover 10 connected thereto to move linearly. Furthermore, as shown in FIGS. 14 and 15 , the transmission shaft 23 can move linearly relative to the transmission screw rod 30 or the material washing compartment body 6 between at least a first extreme position and a second extreme position.

[0119] One of the threaded transmission rod 30 and the transmission shaft 23 can function as a rotation transmission member. The rotation drive member 24 is connected to the rotation transmission member to rotationally drive the rotation transmission member. When the rotation drive member 24 rotationally drives the rotation transmission member, the transmission shaft 23 rotates between both a first extreme position and a second extreme position and moves linearly at least between the first extreme position and the second extreme position. Relative rotation between the threaded transmission rod 30 and the transmission shaft 23 can convert rotational motion into linear motion. The linear movement of the transmission shaft 23 relative to the threaded transmission rod 30 can linearly move an actuator member connected to the transmission shaft 23, i.e., up and down, to perform operations such as moving the stirring member 21 up and down and / or opening and closing a lid.

[0120] In this embodiment, as shown in Figures 2A and 2B, when the transmission shaft 23 is in a first extreme position, the material washing compartment lid 10 is in a closed position covering the material discharge outlet 8. As shown in Figure 7, when the transmission shaft 23 is in a second extreme position, the material washing compartment lid 10 is in an open position opening the material discharge outlet 8.

[0121] Therefore, when the rotary drive member 24 rotationally drives the rotary transmission member, the transmission shaft 23 rotates in both the first and second extreme positions, but in the opposite direction to rotate the agitating member 21. Also, regardless of whether the material washing compartment lid 10 is in the open or closed position, the agitating member 21 can rotate, and the transmission shaft 23 moves linearly at least between the first and second extreme positions so that the material washing compartment lid 10 moves between the open and closed positions.

[0122] The drive device further includes a rotation limiting assembly 34 configured to limit rotation of the transmission shaft 23 together with the threaded transmission rod 30. The rotation limiting assembly 34 is also disposed on the support member. When it is necessary to rotate the transmission shaft 23 relative to the threaded transmission rod 30, it is necessary to overcome the constraint force generated by the rotation limiting assembly 34. More specifically, it is necessary to overcome the static torque T0 that maintains relative rotation generated by the constraint force of the rotation limiting assembly 34. The force that rotates the transmission shaft 23 relative to the threaded transmission rod 30 must be smaller than the static torque T0. The force that rotates the transmission shaft 23 together with the threaded transmission rod 30 must be greater than the static torque T0.

[0123] The rotation limiting assembly 34 is disposed on the support member and connected to the other of the threaded transmission rod 30 and the transmission shaft 23. Specifically, in one embodiment, the threaded transmission rod 30 functions as a rotation transmitting member and is directly rotationally driven by the rotation drive member 24, and the rotation limiting assembly 34 is connected to the transmission shaft 23. In another embodiment, the transmission shaft 23 functions as a rotation transmitting member and is directly rotationally driven by the rotation drive member 24, and the rotation limiting assembly 34 is connected to the threaded transmission rod 30. In addition, the static torque T0 provided by the rotation limiting assembly 34 acts on the one of the threaded transmission rod 30 and the transmission shaft 23 that is not directly driven by the rotation drive member 24.

[0124] When the driving force provided by the rotary drive member 24 overcomes the static torque T0 generated by the rotation limiting assembly 34, the transmission threaded rod 30 can rotate together with the transmission shaft 23, thereby rotating the agitating member 21, which functions as an actuator member. Therefore, when the rotary drive member 24 is rotated when the material washing compartment cover 10 is opened or closed, the material can be dropped or dropped during material washing.

[0125] The drive device provided by this solution requires only one electric motor to achieve the up and down movement and rotation of the actuator member, thereby achieving the opening and closing of the material discharge port 8 and the dropping and / or dropping of material during material cleaning. This reduces the number of electric motors and transmission parts connected thereto, thereby enabling a reduction in production costs, a simplification of the internal structure of the product, promotion of product miniaturization, and an improvement in the automation level of the product.

[0126] The rotation limiting assembly 34 provided by this solution can provide a static torque T0 within a preset range. Even when the drive device is used for a long period of time, the static torque can be maintained within the preset range without increasing or decreasing. Therefore, the drive device used to drive the rotary drive member 24 can stably provide the lowest possible output power, significantly reducing energy consumption costs.

[0127] In this embodiment, the transmission shaft 23 functions as a rotation transmission member and is directly rotationally driven by the rotation drive member 24, and the rotation limiting assembly 34 is connected to the transmission threaded rod 30. The transmission shaft 23 rotates between a first extreme position and a second extreme position while moving linearly.

[0128] The rotary drive member 24 is cylindrical in shape and includes a guide hole 25. Both the transmission screw rod 30 and the transmission shaft 23 are disposed within the guide hole 25. The shape of the guide hole 25 is adapted to the shape of the outer wall of the transmission shaft 23. The transmission shaft 23 can move linearly along the surface of the guide hole 25, which guides the movement of the transmission shaft 23. The guide hole 25 is a non-circular hole that limits the rotation of the transmission shaft 23 relative to the rotary drive member 24, i.e., keeps them rotating together.

[0129] The upper portion of the rotary drive member 24 has a larger outer dimension than the lower portion. The illustrated implementation shows that the outer dimension of the rotary drive member 24 gradually decreases from the upper portion to the lower portion. Of course, if necessary and / or desired, a tapered structure may not be formed. Rather, a linear cylindrical structure of varying diameter is formed, with the upper portion of the rotary drive member 24 being larger than the lower portion. This solution allows the overall structure of the drive device to be more compact, saving space for accommodating the rotary drive member 24 and thereby allowing the material washing chamber to have a larger volume.

[0130] The minimum distance between the bottom of the rotary drive member 24 and the stirring member 21 can be 2 mm or more, so that the material can be prevented from sticking between the drive unit and the stirring member 21 during material washing, and the stirring member 21 can perform normal material dropping.

[0131] The threaded hole can be located in the upper portion of the transmission shaft 23. Specifically, the transmission shaft 23 is provided with a circular axial hole 70, which can have a smaller diameter, at the upper portion of the transmission shaft 23. A nut can be provided in the axial hole 70. The nut is secured to the upper portion of the transmission shaft 23 by, for example, gluing or welding. The nut is provided with a threaded hole in the transmission shaft 23. Of course, if necessary and / or desirable, a nut may not be provided. Rather, the upper portion of the transmission shaft 23 is integrally formed with the threaded hole.

[0132] The threaded transmission rod 30 may have a rod end 31 that protrudes in the radial direction. The rod end 31 is restricted in the axial hole 70. The dimension of the rod end 31 is larger than the diameter of the axial hole 70 at the top of the transmission shaft 23. Therefore, the transmission shaft 23 can be prevented from coming off the threaded transmission rod 30.

[0133] The cooking appliance further includes a second drive unit 55 (see FIG. 8 ) configured to drive the rotary drive member 24 in the ingredient washing apparatus 5. The second drive unit 55 can be connected to the rotary drive member 24 by a gear transmission structure. In one implementation, as shown in FIGS. 16 and 17 , the drive unit further includes a rotary connecting member 27 configured to be connected to the output of the second drive unit 55. The rotary drive member 24 can be disposed on the upper part of the rotary drive member 24 and can include a gear portion 26 protruding radially relative to the outer circumferential surface of the rotary drive member 24. Optionally, the gear portion 26 and the rotary drive member 24 can be integrally configured. The outer circumferential surface of the rotary connecting member 27 is provided with teeth. The teeth of the gear portion 26 engage with the teeth of the rotary connecting member 27. The use of gear transmission provides high transmission efficiency, a compact structure, and facilitates miniaturization.

[0134] The rotary connection member 27 may include a connection port 28 configured to engage with the output portion. Accordingly, the rotary connection member 27 is formed as a ring-shaped component. Spaced-apart first ribs 29 are provided on the inner circumferential wall of the connection port 28. The first ribs 29 extend vertically. Referring back to FIG. 12 , the output portion of the second drive device 55 may include vertically extending second ribs 66. The first ribs 29 are configured to circumferentially abut the second ribs 66 when the output portion engages with the connection port 28. More specifically, the first ribs 29 are disposed between adjacent second ribs 66. The engagement structure allows the output portion of the second drive device 55 to easily engage and disengage with the rotary connection member 27, and the engagement structure is simple and easy to manufacture.

[0135] The support member in this embodiment can include an upper portion and a lower portion. The lower portion is located below the upper portion, and the two are detachably connected. Both the gear portion 26 and the rotary connecting member 27 are sandwiched between the lower portion and the upper portion. The upper end of the transmission screw rod 30 is located in the upper portion. In the illustrated embodiment, since the upper cover 22 functions as a support member, the upper portion can also be referred to as an upper cover 32, and the lower portion can also be referred to as a lower cover 33. The upper cover 32 can include a passage hole through which the output portion passes.

[0136] A downwardly depressed receiving groove 38 is provided in the middle portion of the support member, more specifically, the middle portion of the top cover 32. A downwardly protruding receiving post 39 (as shown in FIG. 17) is provided in the middle portion of the top cover 32. The receiving groove 38 is formed in the receiving post 39. The receiving post 39 can be disposed within the rotary drive member 24 and can be supported upward by a step on its upper portion. Therefore, the radial movement of the rotary drive member 24 can be limited so that the rotary drive member 24 rotates stably. The rotation limiting assembly 34 is located within the receiving groove 38 and supported by the bottom wall of the receiving groove 38. The upper end of the threaded transmission rod 30 can extend upward into the receiving groove 38 and can be connected to the rotation limiting assembly 34. An opening is provided in the bottom of the receiving groove 38. The upper end of the threaded transmission rod 30 extends into the receiving groove 38 through the opening.

[0137] 16 and 17 , the rotation limiting assembly 34 can include a limiting fixed member 35 and a limiting moving member 36. The limiting fixed member 35 is fixedly disposed on the support member. A restraining force exists between the limiting fixed member 35 and the limiting moving member 36, limiting the rotation of the limiting moving member 36 about the rotation axis Ax. The limiting moving member 36 is connected to the other of the threaded transmission rod 30 and the transmission shaft 23 and is rotatable relative to the limiting fixed member 35. Specifically, in one embodiment, the threaded transmission rod 30 functions as a rotation transmitting member, and the limiting moving member 36 is connected to the transmission shaft 23. In another embodiment, the transmission shaft 23 functions as a rotation transmitting member, and the limiting moving member 36 is connected to the threaded transmission rod 30.

[0138] The rotation limiting assembly 34 is composed of two parts, one of which is fixed and the other of which is movable together with the threaded rod 30 or the transmission shaft 23. The binding force between the two parts can easily generate static torque in the threaded rod 30 or the transmission shaft 23. The rotation limiting structure is simple, easy to manufacture, convenient to assemble, and inexpensive.

[0139] In this embodiment, the transmission shaft 23 functions as a rotation transmission member, and the limiting movement member 36 is connected to the threaded transmission rod 30. A static torque T0 generated by the binding force between the limiting movement member 36 and the limiting fixing member 35 can act directly on the threaded transmission rod 30. The limiting movement member 36 can include a first threaded hole 67 extending axially and a second threaded hole 68 extending radially. The second threaded hole 68 and the first threaded hole 67 are in communication with each other. The upper end of the threaded transmission rod 30 is threaded into the first threaded hole 67. A fastener such as a screw is threaded into the second threaded hole 68 and fastened to the threaded transmission rod 30. Therefore, the limiting movement member 36 and the threaded transmission rod 30 can be fixed together.

[0140] In the illustrated implementation, the limiting and fixing member 35 can be located at the top end of the limiting and moving member 36, thus providing a vertical restraining force. Alternatively, the limiting and fixing member 35 can be located on the side of the limiting and moving member 36, thus providing a horizontal restraining force.

[0141] In the illustrated embodiment, the limiting movement member 36 can be disposed in the receiving groove 38. The receiving groove 38 is circular, and the limiting movement member 36 is also circular. Therefore, the limiting movement member 36 can rotate around the rotation axis Ax within the receiving groove 38 together with the transmission screw rod 30. The drive device further includes a pressure plate 37. The pressure plate 37 covers the receiving groove 38 from above and presses the limiting fixing member 35 and the upper cover 32 from above. To limit the rotation of the limiting fixing member 35, the pressure plate 37 is provided with a limiting support pillar that protrudes downward. The limiting support pillar has a non-circular hole that opens downward. The limiting fixing member 35 has a shape that matches the shape of the non-circular hole and is positioned within the non-circular hole. For example, the illustrated embodiment shows that the limiting fixing member 35 is square in shape and the hole of the limiting support pillar is a square hole.

[0142] The pressure plate 37 can be connected to the bottom cover 33 with fasteners such as screws. Therefore, the pressure plate 37 and the limiting and fixing members 35 can be fixed to the bottom cover 33 together with the limiting and moving members 36 and the top cover 32. The pressure plate 37 can press the top cover 32, the limiting and fixing members 35, and the limiting and moving members 36 downward. To accommodate hole structures such as the material inlet 7 and the passage holes in the top cover 22, the pressure plate 37 can be provided with arms, for example, three arms in the illustrated embodiment. Corresponding to the arms, the top cover 32 is provided with limiting structures configured to limit the movement of the arms. The limiting structures can include, for example, limiting openings 40 and limiting bosses 41. The limiting openings 40 communicate with the upper portions of the receiving grooves 38 and have a shape that matches the shape of the arms. The arms can be positioned in the limiting openings 40. The limiting bosses 41 are positioned on the underside of the top cover 32 and protrude toward the center of the limiting openings 40. The arm abuts against a limiting boss 41 to support the pressure plate 37 upward. The limiting boss 41 is located at the end of the limiting opening 40 and has an arc-shaped notch. A fastener used to secure the pressure plate 37 can pass through the arc-shaped notch so that the limiting boss 41 does not interfere with the installation of the pressure plate 37.

[0143] The bottom cover 33 may include a first limiting groove 42 and a second limiting groove 43. The top of the rotary drive member 24 is located in the first limiting groove 42, and the gear portion 26 is located on the bottom wall of the first limiting groove 42. Therefore, the gear portion 26 is sandwiched between the top cover 32 and the bottom wall. The top cover 32 can press the rotary drive member 24 downward to limit its axial movement. An opening is provided in the bottom wall of the first limiting groove 42. The rotary drive member 24 passes through the opening. The rotary connecting member 27 is located in the second limiting groove 43 and is supported by the bottom wall. An opening may be provided in the bottom wall of the second limiting groove 43. A portion of the rotary drive member 24 passes through the opening to limit the movement of the rotary drive member 24. The first limiting groove 42 and the second limiting groove 43 are connected to each other to form an avoidance area that facilitates engagement between the gear portion 26 and the teeth of the rotary connecting member 27.

[0144] The limiting member 36 and the limiting member 35 are attracted to each other by magnetic force. In other words, the binding force between them is magnetic attraction. One of the limiting member 36 and the limiting member 35 is a magnet, and the other is a magnetic component. The magnetic component can be at least one of magnet, iron, nickel, cobalt, ferritic steel, martensitic steel, and austenitic-ferritic dual-phase stainless steel. Optionally, the limiting member 35 is a magnet, and the limiting member 36 is a magnetic component. This solution reduces unwanted resistance between the limiting member 36 and the limiting member 35, for example, resistance in directions other than the circumferential direction. Furthermore, a constant binding force can be provided, thereby generating a constant static torque that makes the drive easier to control and results in low energy consumption.

[0145] 18 and 19, the axial hole 70 of the transmission shaft 23 has an upper limiting portion 48 and a lower limiting portion 49 located below the upper limiting portion 48. Specifically, the upper limiting portion 48 is located at the top of the transmission shaft 23, and the lower limiting portion 49 is located at the bottom of the transmission shaft 23. The rod end 31 of the threaded transmission rod 30 abuts against the lower limiting portion 49 in the circumferential direction when the transmission shaft 23 is in a first extreme position (as shown in FIG. 18), and abuts against the upper limiting portion 48 in the circumferential direction when the transmission shaft 23 is in a second extreme position (as shown in FIG. 19).

[0146] By providing the restriction, the transmission shaft 23 can rotate together with the threaded transmission rod 30 when in the extreme position, and the circumferential contact between the restriction and the rod end 31 is unidirectional. Therefore, the direction of force transmission between the transmission shaft 23 and the threaded transmission rod 30 at the extreme position is unidirectional. According to this embodiment, when the transmission shaft 23 is in the extreme position, force can be transmitted in one direction between the transmission shaft 23 and the threaded transmission rod 30, causing them to move together. For example, in the illustrated embodiment, force can be transmitted in one direction from the transmission shaft 23 to the threaded transmission rod 30 to rotate the stirring member 21, driving the threaded transmission rod 30 to move together. There is no contact between the restriction and the rod end 31 in the opposite direction, and the transmission shaft 23 can easily move away from the rod end 31 of the threaded transmission rod 30 to rotate the stirring member 21 and the material washing compartment lid 10 up and down.

[0147] As shown in Figure 20, the circumferential surface of the rod end 31 is polygonal, for example, hexagonal. The circumferential surface of the rod end 31 can abut against both the upper limiting portion 48 and the lower limiting portion 49. Of course, the shape of the rod end 31 is not limited as long as it meets the requirement of abutting against the limiting portions. Therefore, the threaded transmission rod 30 has a simple structure and is easy to manufacture.

[0148] The upper limiting portion 48 and the transmission shaft 23 may be configured as an integral or separate component. The lower limiting portion 49 and the transmission shaft 23 may be configured as an integral or separate component. As shown in FIG. 21 , the upper limiting portion 48 and the transmission shaft 23 are configured as an integral portion. The upper limiting portions 48 may be provided, for example, in two numbers, symmetrically about the center. As shown in FIGS. 19 and 22 , the drive device further includes a limiting member 47, a portion of which is inserted into an axial hole 70 of the transmission shaft 23 to form a lower limiting portion 49. The limiting member 47 may be connected to the bottom of the transmission shaft 23. The lower limiting portions 49 may be provided, for example, in two numbers, symmetrically about the center.

[0149] 14, 15, and 18 to 20, the material washing compartment cover 10 includes a cover plate 44, an auxiliary cover plate 45, and a seal portion 46 disposed between the cover plate 44 and the auxiliary cover plate 45. The cover plate 44 is connected to the agitating member 21 from below the agitating member 21. The outer peripheral surface of the seal portion 46 abuts against the inner peripheral surface of the material washing compartment main body 6.

[0150] The seal portion 46 is configured to have a sheet shape and is sandwiched between the cover plate 44 and the auxiliary cover plate 45. In the sandwiched state, a portion of the outer periphery of the seal portion 46 is exposed from the cover plate 44 and the auxiliary cover plate 45 so as to form a tight seal with the material washing compartment body 6. The seal portion 46 can be made of a soft plastic material such as rubber or silicone. Preferably, the cover plate 44 and the auxiliary cover plate 45 are made of a hard plastic material to prevent deformation of the entire material washing compartment lid 10, which may occur if only a soft plastic material is used. For example, the cover plate 44, the seal portion 46, and the auxiliary cover plate 45 are fastened together with screws. In this embodiment, the material washing compartment lid 10 does not rotate together with the stirring member 21. Therefore, wear of the seal portion 46 can be avoided.

[0151] In an embodiment not shown, the seal can be configured to be ring-shaped and sleeved onto the outer periphery of the cover plate 44. The seal can be configured as a separate component from the cover plate 44 or can be formed integrally with the cover plate 44 by overmolding. In yet another embodiment not shown, if the seal is made of a wear-resistant material, the seal can be sleeved directly onto the outer periphery of the agitator member 21 and rotate with the agitator member 21, or the seal and agitator member 21 can be formed integrally via overmolding.

[0152] The restricting member 47 can be connected to the transmission shaft 23 by the stirring member 21. In a preferred embodiment, the restricting member 47 can include a main body 71 and a protruding portion 72 located at the center of the main body 71 and protruding upward. The main body 71 can be detachably connected to the stirring member 21 by a fastener such as a screw. The cover plate 44 is located between the stirring member 21 and the main body 71 of the restricting member 47, which are fixedly connected to each other. The protruding portion 72 can be inserted into the axial hole 70 of the transmission shaft 23 from below and has a circular cross section.

[0153] The stirring member 21 has a sleeve portion 73 extending downward. The hollow bore of the sleeve portion 73 communicates with the axial bore 70. The protrusion 72 of the restricting member 47 is inserted into the axial bore 70 via the sleeve portion 73, and the body portion 71 is connected to the sleeve portion 73. The sleeve portion 73 has radial openings 74 ( FIG. 20 ) communicating with the hollow bore. The restricting member 47 has radial portions 75 ( FIG. 22 ) connected to the protrusion 72. The radial portions 75 have a shape that matches the shape of the radial openings 74 and can be positioned within the radial openings 74. The radial openings 74 are equally spaced circumferentially, and the radial portions 75 are equally spaced apart. The illustrated embodiment shows three radial openings 74 and three radial portions 75. The stirring member 21 further includes a recess 76 that opens downward. The sleeve portion 73 extends within the recess 76. Optionally, the central portion of the sealing portion 46 may include a recessed groove that is recessed downwardly and configured to receive the restricting member 47 .

[0154] 2A-7 and 10-12, the second drive device 55 can be disposed on the host support 11, specifically, on the material storage compartment 15 connected to the host support 11. The second drive device 55 can be disposed at least partially within the material storage compartment 15, or at least partially outside the material storage compartment 15 but within a space enclosed by the material storage compartment 15. In the illustrated implementation, a portion of the second drive device 55 is disposed within the material delivery mechanism 14. Notably, the second drive device 55 is not disposed on the pot lid 3. Because the second drive device 55 typically uses an electric drive, by disposing the second drive device 55 at a location other than the pot lid 3, this solution facilitates and ensures safety for users who clean the pot lid 3 and the material cleaning device 5. Furthermore, this solution eliminates the need to consider waterproofing during the manufacturing stage of the pot lid 3, thereby simplifying the manufacturing stage.

[0155] Preferably, the second drive device 55 is movable together with the material delivery mechanism 44 between a storage position in which the second drive device 55 is completely housed in the material storage compartment 15 and a cooperative position in which a portion of the second drive device 55 extends from the material storage compartment 15 and cooperates with the material cleaning device 5.

[0156] In a preferred embodiment, the second drive device 55 is connected to the material delivery compartment 16 and can move up and down together with the material delivery compartment 16. The material delivery compartment 16 can move between a first position and an intermediate position below the first position. As shown in FIG. 3 , in the intermediate position, the material delivery compartment 16 is not docked with the material cleaning apparatus 5, and its material inlet 17 is closed and not in communication with the outlet of the material storage compartment 15. The second drive device 55 can move together with the material delivery compartment 16 between the first position and the intermediate position. In the intermediate position, the second drive device 55 can be docked with a corresponding portion of the material cleaning apparatus 5. Specifically, the output portion of the second drive device 55 is docked with the connection port 28 of the rotary connection member 27.

[0157] 3 and 4, the material delivery compartment 16 is movable between an intermediate position and a second position below the intermediate position. When the material delivery compartment 16 moves between the intermediate position and the second position, the drive unit remains stationary, i.e., does not move. When the material delivery compartment 16 is in the second position, it communicates with the material storage compartment 15 and the material washing chamber to facilitate material supply. In the illustrated implementation, when the material delivery compartment 16 moves downward from the intermediate position, the second drive unit 55 is supported by the top cover 22, thereby preventing the second drive unit 55 from moving downward so that the material delivery compartment 16 can move independently to the second position. The material delivery compartment 16 has two sections of movement relative to the second drive unit 55. The material delivery compartment 16 can drive the second drive unit 55 to move together, or it can move independently. By independently moving the material delivery section 16, it is possible to switch between a state in which the material delivery section is in communication with the material cleaning chamber and a state in which the material delivery section is not in communication with the material cleaning chamber, thereby performing material supply and material supply stop operations.

[0158] As shown in FIGS. 10 and 11 , a support chamber 77 is provided in the material delivery section 16. The top of the support chamber 77 is open. The second drive unit 55 is housed in the support chamber 77 from above and supported upward by the bottom wall of the support chamber 77. The output of the second drive unit 55 can extend downward from the bottom wall of the support chamber 77 ( FIG. 8 ) so as to extend into the connection port 28 when the second drive unit 55 is moved to the intermediate position. The solid material delivery passages can be arranged outside the support chamber 77. For example, two solid material delivery passages P1 can be arranged symmetrically. The bottom of the solid material delivery passage can extend downward from the bottom wall of the support chamber 77 so as to extend into the material inlet 7 when the material delivery section 16 is moved to the second position. As shown in FIG. 9 , the liquid material delivery passage P2 is located in at least one of the two solid material delivery passages P1. One liquid material delivery passage P2 can be provided.

[0159] A vertically extending device guide surface F2 is provided inside the support chamber 77. The device guide surface F2 has an outer shape that matches the outer shape of the second drive device 55. The second drive device 55 is arranged in the support chamber 77 from top to bottom along the device guide surface F2.

[0160] As shown in FIG. 12 , the second drive device 55 includes a rotary output member 56, a second electric motor 57, and a device support 61. The rotary output member 56 functions as the above-mentioned output part and can engage with the rotary connecting member 27. The second electric motor 57 is used to rotate the rotary output member 56. The device support 61 has an open top. The second electric motor 57 is fixed to the device support 61 from above. A hole is provided in the bottom wall of the device support 61. The rotary output member 56 is located below the device support 61 and is connected to the second electric motor 57 through the hole. The second electric motor 57 can be connected to the rotary output member 56 by a plurality of gears.

[0161] The gears are fixed to the second electric motor 57 by a gear support. The gears are engaged in sequence, with one gear connected to the output shaft of the second electric motor 57 and another gear disposed coaxially with the rotary output member 56. The illustrated implementation schematically shows a first gear 58, a second gear 59, and a third gear 60 engaged in sequence. The first gear 58 is connected to the output shaft of the second electric motor 57. The third gear 60 is disposed coaxially with the rotary output member 56.

[0162] The cooking device according to the present application will be further described with reference to Figures 35 to 39.

[0163] In a preferred implementation, as shown in Figure 37, the material washing compartment body 6 is provided with a limiting protrusion 83. The top cover 22 is provided with a ring of downwardly extending extensions 84 around its periphery. The extensions 84 are provided with restraining slots 85. The limiting protrusions 83 can cooperate with the restraining slots 85 to secure the top cover 22 on the material washing compartment body 6.

[0164] The restraining slot 85 is substantially L-shaped and includes a guide slot 86 and a limiting slot 87 extending substantially perpendicular to the guide slot 86. The limiting slot 87 communicates with the guide slot 86. The guide slot 86 is configured to allow the limiting protrusion 83 to enter the limiting slot 87. In the illustrated embodiment, the limiting protrusion 83 is in the form of an elongated strip, and the dimension of the guide slot 86 in the circumferential direction of the top cover 22 is slightly greater than the length of the limiting protrusion 83 so that the limiting protrusion 83 can smoothly enter the guide slot 86. The dimension of the limiting slot 87 in the height direction of the top cover 22 corresponds to the width of the limiting protrusion 83, and is preferably slightly greater than the width of the limiting protrusion 83. This solution can, on the one hand, help the limiting protrusion 83 enter the limiting slot 87, and, on the other hand, prevent the limiting protrusion 83 from disengaging from the limiting slot 87. In operation, when it is desired to secure the top cover 22 to the material washing compartment body 6, the top cover 22 is simply installed with the restraining slot 85 aligned with the limiting projection 83, and then the top cover 22 is rotated so that the limiting slot portion 87 snaps onto the limiting projection 83.

[0165] More preferably, the material washing compartment body 6 comprises at least two limiting protrusions 83 arranged at substantially equal intervals, and the extension 84 of the top cover 22 comprises at least two restraining slots 85 corresponding to the two limiting protrusions 83. For example, the illustrated implementation shows three limiting protrusions 83 and three restraining slots 85. This solution allows a stable connection of the top cover 22 to the material washing compartment body 6.

[0166] 1 to 7, 35, 38, and 39, the cooking utensil further includes a waste discharge assembly. The waste discharge assembly includes a waste discharge conduit 80 and a wastewater tank 81 communicating with the waste discharge conduit 80. The material washing compartment body 6 is further provided with a waste discharge outlet 9. The waste discharge conduit 80 can communicate with the waste discharge outlet 9, thereby allowing wastewater in the material washing chamber to be discharged. At least a portion of the waste discharge conduit 80 is disposed in the pot lid 3. Specifically, depending on the position in the cooking utensil where the wastewater tank 81 is disposed, if the wastewater tank 81 is disposed far away from the waste discharge conduit 80 in the pot lid 3, the waste discharge conduit 80 will be completely disposed within the pot lid 3. As shown in FIG. 35, the host body assembly 1 further includes a receptacle 88 disposed adjacent to the base 12. The receptacle 88 has an opening facing the side where the base 12 is located. After the pot body 2 is removed from the base 12 , the wastewater tank 81 is removably placed in the receptacle 88 , and the waste discharge conduit 80 can be docked directly to the wastewater tank 81 .

[0167] According to this solution, the waste discharge conduit 80 is at least partially disposed in the pot lid 3, and the pot lid 3 can be removed. Therefore, when a user wants to clean the waste discharge conduit 80, the user only needs to remove the pot lid 3 for cleaning, thus facilitating the use by the user.

[0168] To further facilitate removal and cleaning of the pot lid 3, in a preferred embodiment, the pot lid 3 comprises a pot lid body 89 and a removable lid 90, as shown in Figures 38 and 39. The removable lid 90 is removably connected to the pot lid body 89. Therefore, when a user wants to clean the removable lid 90, he or she can directly remove it, which is simple and easy. In one embodiment, the removable lid 90 can be sleeved onto the material washing compartment body 6 of the material washing apparatus 5.

[0169] At least a portion of the waste discharge assembly is removably or non-removably disposed in the removable lid 90. By disposing at least a portion of the waste discharge assembly in the removable lid 90, the present solution facilitates cleaning of the waste discharge assembly when the removable lid 90 is removed. By removably disposing a portion of the waste discharge assembly in the removable lid 90, the waste discharge assembly can be further removed for cleaning, and therefore cleaning can be more thorough.

[0170] The waste discharge conduit 80 comprises a bearing portion 91 arranged on the removable lid 90 and a covering portion 92 arranged on the pot lid body 89. The cross section of the bearing portion 91 is substantially U-shaped. The covering portion 92 is in the shape of a plate. The position of the bearing portion 91 corresponds to the position of the covering portion 92. When the removable lid 90 is connected to the pot lid body 89, the covering portion 92 can accurately cover the bearing portion 91, thus forming the waste discharge conduit 80. With this solution, when the removable lid 90 is removed from the pot lid body 89, the two parts, the upper and lower parts of the waste discharge conduit 80, can be removed, thus allowing for more thorough cleaning of the waste discharge conduit 80 and avoiding hygienic dead zones. In other implementations (not shown), the bearing portion 91 and the covering portion 92 can be configured to have different shapes as long as they can cooperate with each other to form the complete waste discharge conduit 80.

[0171] Preferably, the waste discharge conduit 80 further comprises a sealing member 93 disposed between the bearing portion 91 and the covering portion 92. In the illustrated implementation, the sealing member 93 is connected to the bearing portion 91. When the removable lid 90 is connected to the pot lid body 89, the covering portion 92 can press against the sealing member 93 for sealing.

[0172] In a preferred implementation, the waste discharge conduit 80 comprises a first conduit 94 and a second conduit 95 communicating with the first conduit 94. The first conduit 94 is arranged in a ring shape around the material washing compartment body 6. The second conduit 95 extends radially from the first conduit 94 to the outer circumferential surface of the pot lid 3. A sealing structure is also provided on an inner ring portion of the removable lid 90 connected to the material washing compartment body 6. The inner ring portion forms part of the first conduit 94 and is arranged below the material washing compartment body 6 relative to the waste discharge outlet 9.

[0173] To improve drainage efficiency, the material washing compartment body 6 preferably includes a plurality of waste discharge ports 9, as shown in Figure 38. All of the plurality of waste discharge ports 9 are disposed within the material washing compartment body 6 and are equally spaced apart in the circumferential direction of the material washing compartment body 6. The drainage process will be described in detail below.

[0174] In an implementation not shown, the material washing compartment body 6 has only one waste discharge outlet arranged in the material washing compartment body 6. In this implementation, the waste discharge conduit extends in the radial direction of the pot lid 3 from the waste discharge outlet to the outer circumferential surface of the pot lid 3. In other words, in this implementation, the waste discharge conduit does not have a ring-shaped first conduit 94.

[0175] In one embodiment, the material washing compartment lid 10 can open and close the material discharge port 8, but it also functions as a waste discharge valve, opening and closing the waste discharge port 9 as needed. Specifically, the material washing compartment lid 10 has a first closed position and a second closed position located below the first closed position. The transmission shaft 23 has an additional position located between the first and second extreme positions. When the transmission shaft 23 moves between the first and second extreme positions, the transmission shaft 23 can drive the material washing compartment lid 10 to move between the first and second closed positions. As shown in FIG. 4 , when the transmission shaft 23 moves to the first extreme position, the material washing compartment lid 10 is in the first closed position, and in the material washing compartment body 6, the seal portion 46 is located above the waste discharge port 9, and the waste discharge port 9 is not in communication with the material washing chamber. 5, when the transmission shaft 23 is moved to the additional position, the material washing compartment lid 10 is in the second closed position, and in the material washing compartment body 6, the seal 46 is below the waste discharge port 9, which is in communication with the material washing chamber. This solution can omit the provision of a waste discharge valve.

[0176] The pot lid 3 may further include a steam passage 96 that communicates with both the cooking chamber and the waste discharge conduit 80. The steam passage 96 may be disposed in the second conduit 95. The height of the steam passage 96 is greater than the maximum liquid level of the wastewater in the waste discharge conduit 80.

[0177] Referring back to FIG. 35 , the cooking appliance further includes a water injection assembly. The water injection assembly includes a clean water tank 82, a water injection conduit, and a water pump (not shown). The clean water tank 82 is removably disposed on the host body assembly 1, thereby facilitating the user's water addition operation. The clean water tank 82 is disposed near the ingredient storage mechanism 13 and located above the waste water tank 81. The clean water tank 82 can be docked with the ingredient washing chamber by the water injection conduit. Preferably, the water injection conduit is connected to the water inlet 19 of the ingredient delivery section 16 and driven by a drive device to dock with the ingredient washing chamber for adding water. The liquid inlet of the ingredient washing chamber can be disposed in the top cover 22. Preferably, the liquid inlet of the ingredient washing chamber can be the same as the ingredient inlet 7. When water is added, the water pump can be activated. The water pump can supply water from the clean water tank 82 to the ingredient washing chamber via the water injection conduit disposed in the ingredient delivery mechanism 14. The clean water tank 82 and waste water tank 81 are located on the side of the host body opposite the material storage compartment 15 .

[0178] In one implementation, the cooking appliance further includes a control unit. The control unit is configured to be coupled to the first drive device 50, the second drive device 55, and the water pump to control their operation. The control unit includes a control panel (not shown) and a display panel 97 (see FIG. 1) connected to the control panel. The control panel is disposed within the host support 11. The display panel 97 is disposed on the front side of the ingredient storage compartment 15.

[0179] In a preferred embodiment, all electrical components in the cooking appliance (e.g., electric motor, heating device, temperature detection device, etc.) are disposed in the host body assembly 1 or the pot body 2, such that there are no electrical components in the pot lid 3. Therefore, there is no need to consider waterproofing when manufacturing the pot lid 3, and the pot lid 3 is easier to clean. When the pot lid 3 is detachable from the pot body 2, the pot lid 3 can be further removed for separate cleaning. Because the pot lid 3 has no electrical components, the pot lid 3 can be washed with tap water or a washbasin. Instead, all electrical components are disposed in the host body assembly 1, such that neither the pot lid 3 nor the pot body 2 has any electrical components. Because neither the pot lid 3 nor the pot body 2 has any electrical components, there is no need to consider waterproofing as a whole. The pot lid 3 and the pot body 2 can be washed with tap water.

[0180] In this implementation, the first drive 50 and the second drive 55 are both located on the host support 11. However, if desired, the first drive 50 is located on the host support 11 and the second drive 55 is located on the pot lid 3. The drive on the pot lid 3 maintains a connection with a corresponding location on the material washing device 5 and can drive the material washing device 5 and / or the agitating member 21 in the material washing compartment lid 10 at any desired moment, which facilitates operation.

[0181] In the cookware according to this embodiment, the inner pot 4, pot lid 3, ingredient washing device 5, clean water tank 82, and waste water tank 81 can all be easily removed and washed with water, simplifying the cleaning process of the entire cookware.

[0182] For the driving device according to the first preferred embodiment, an exemplary driving process is as follows:

[0183] 1. Executing the material dropping operation during material cleaning As shown in FIG. 4 , the transmission shaft 23 is in a first extreme position, and the material washing compartment lid 10 is in a closed position. Specifically, the seal 46 is positioned over the waste discharge port 9, and the output of the second drive unit 55 is engaged with the rotary connecting member 27. The second motor 57 is controlled to rotate in a first direction. Illustratively, the first direction may be a negative direction. Through the transmission of the rotary connecting member 27 and the gear unit 26, the rotary drive member 24 is driven to rotate in the negative direction while driving the transmission shaft 23 together with the second drive member 55. Furthermore, the rod end 31 of the threaded transmission rod 30 abuts against the lower limiting portion 49 of the limiting member 47 in the circumferential direction, and the driving force provided by the rotary drive member 24 overcomes the static torque generated by the binding force between the fixed limiting member 35 and the moving limiting member 36, allowing the transmission shaft 23 to rotate in the negative direction together with the threaded transmission rod 30. Therefore, the stirring member 21 connected to the transmission shaft 23 rotates in the negative direction to perform the action of dropping material during material washing.

[0184] 2. Execution of opening operation of waste discharge outlet 9 As shown in FIG. 6 , the second electric motor 57 is controlled to rotate in a second direction opposite to the first direction. Illustratively, the second direction is the positive direction. Through the transmission of the rotary connecting member 27 and the gear section 26, the rotary drive member 24 is driven to rotate in the positive direction while simultaneously driving the transmission shaft 23 in the positive direction. The rod end 31 of the threaded transmission rod 30 disengages from the lower limiting portion 49 of the limiting member 47. Under the limitation of the static torque generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 moves linearly downward while rotating relative to the threaded transmission rod 30. At this time, the threaded transmission rod 30 remains stationary and does not rotate. The transmission shaft 23 moves from the first extreme position to an additional position below it. Therefore, the stirring member 21 connected to the transmission shaft 23 and the material washing compartment lid 10 also move linearly downward so that the material washing compartment lid 10 moves from the first closed position to the second closed position where the seal portion 46 is located below the waste discharge outlet 9. At this time, the material washing chamber communicates with the waste discharge outlet 9 so that the waste water in the material washing chamber can be discharged through the waste discharge outlet 9 and the waste discharge conduit 80.

[0185] 3. Execution of the opening operation of the material washing compartment lid 10 As shown in FIG. 7, after performing the waste discharge operation, the second motor 57 continues to rotate in a second direction (e.g., a positive direction), driving the transmission shaft 23 to rotate in the positive direction together with the rotation drive member 24. The transmission shaft 23 rotates relative to the transmission threaded rod 30 and simultaneously continues to move linearly downward. The transmission shaft 23 moves from the additional position to its lower second extreme position. Therefore, the stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also continue to move linearly downward, so that the material washing compartment lid 10 moves from the second closed position to its lower open position. At this time, the material washing chamber communicates with the inner pot 4. The material in the material washing chamber can fall into the inner pot 4.

[0186] 4. Execute the material dropping operation while the material is falling 7, after performing the opening operation of the material washing compartment lid 10, the second motor 57 is controlled to rotate in a second direction (e.g., a positive direction) to drive the rotation drive member 24 to continue rotating in the positive direction while driving the transmission shaft 23 to rotate together in the positive direction. Furthermore, the rod end 31 of the transmission threaded rod 30 abuts against the upper limiting portion 48 of the transmission shaft 23 in the circumferential direction, and the driving force provided by the rotation drive member 24 overcomes the static torque generated by the restraining force between the limiting fixed member 35 and the limiting moving member 36, so that the transmission shaft 23 can rotate together with the transmission threaded rod 30 in the positive direction. Therefore, the stirring member 21 connected to the transmission shaft 23 rotates in the positive direction to perform the material dropping operation during the material dropping.

[0187] 5. Closing the material washing compartment lid 10 The second motor 57 is controlled to rotate in a first direction (e.g., a negative direction), driving the transmission shaft 23 in the negative direction together with the rotational drive member 24, causing the rod end 31 of the threaded transmission rod 30 to disengage from the upper limiting portion 48 of the transmission shaft 23. Under the static torque generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 rotates relative to the threaded transmission rod 30 and simultaneously moves linearly upward. At this time, the threaded transmission rod 30 remains stationary and does not rotate. The transmission shaft 23 moves from the second extreme position to an additional position above it. Therefore, the stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly upward, so that the material washing compartment lid 10 moves from the open position to the first closed position via the second closed position. At this time, the material washing chamber is not in communication with either the inner pot 4 or the waste discharge port 9. That is, it returns to the position shown in FIG.

[0188] 6. Execution of closing operation of waste discharge outlet 9 After one waste discharge operation, the second motor 57 is controlled to rotate in a first direction (e.g., the negative direction), driving the rotation drive member 24 to rotate in the negative direction while simultaneously driving the transmission shaft 23 in the negative direction. Under the static torque limit generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 rotates relative to the threaded transmission rod 30 and simultaneously moves linearly upward. At this time, the threaded transmission rod 30 remains stationary and does not rotate. The transmission shaft 23 moves from the additional position to its upper first extreme position. Therefore, the stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly upward, so that the material washing compartment lid 10 moves from the second closed position to the first closed position. At this time, the material washing chamber is no longer in communication with the waste discharge port 9, and material washing can be performed again. The operations of steps 1, 2, and 6 can be repeated to perform material washing multiple times.

[0189] 23 to 27 show diagrammatically a second preferred embodiment of the drive device.

[0190] In this embodiment, the threaded transmission rod 30 functions as a rotation transmission member and is directly rotationally driven by the rotation drive member 24. A rotation limiting assembly 34 is connected to the transmission shaft 23. In this embodiment, the structures of the threaded transmission rod, transmission shaft, agitation member, and material washing compartment lid are substantially the same as those of the threaded transmission rod 30, transmission shaft 23, agitation member 21, and material washing compartment lid 10 of the first preferred embodiment of the drive device. Therefore, components having substantially the same functions as those of the first preferred embodiment are numbered in the same way here and, for the sake of brevity, will not be further described and / or illustrated in detail. The transmission shaft 23 moves linearly but does not rotate between a first extreme position and a second extreme position.

[0191] As shown in Figures 23 and 24, the rotary drive member 24 can be disposed on the support member and can rotate relative to the support member. In the illustrated embodiment, the support member has a lower portion but not an upper portion. In other words, it has only a lower cover 33. The rotary drive member 24 can function as an upper cover 32. The rotary drive member is in the shape of a circular disk and has at least one material inlet 7. Illustratively, multiple material inlets 7 are provided. The multiple material inlets 7 can be equally spaced in the circumferential direction. Connecting arms are formed between adjacent material inlets 7. The upper portions of the connecting arms are provided with bevels to prevent material accumulation on the connecting arms.

[0192] The support member may include a column 102 extending downward and having a cylindrical shape. The column 102 is located substantially at the center of the lower cover 33. The threaded transmission rod 30 and the transmission shaft 23 may be disposed within the column 102, and the transmission shaft 23 may pass through an opening in the bottom wall of the column 102. The column 102 having a cylindrical shape may separate the connected portions of the threaded transmission rod 30 and the transmission shaft 23 from the material washing chamber, preventing material from interfering with the movement therebetween. Specifically, the drive device may further include a guide cylinder 103. The guide cylinder 103 may be disposed within the column 102 and supported upward by the bottom wall of the column 102. The column 102 has a circular inner bore and a circular outer circumferential surface. Therefore, the guide cylinder 103 may rotate relative to the column 102 about a rotation axis Ax. The exterior of the column 102 has a right cylindrical shape. If necessary and / or desired, the exterior of the support 102 can be configured such that the outer dimensions at the top are larger than the lower portion, for example, the outer dimensions can be configured as a right cylindrical structure having a diameter that gradually decreases from top to bottom or that varies more at the top than at the bottom.

[0193] The guide cylinder 103 may include a guide hole 25. Both the transmission screw rod 30 and the transmission shaft 23 are located within the guide hole 25. The shape of the guide hole 25 is adapted to the shape of the outer wall of the transmission shaft 23. The transmission shaft 23 can move linearly along the surface of the guide hole 25, and the guide hole 25 guides the movement of the transmission shaft 23. As shown in FIG. 26 , the guide hole 25 is a non-circular hole that restricts the rotation of the transmission shaft 23 relative to the guide cylinder 103, and maintains the two either rotating together or not rotating together.

[0194] The transmission screw rod 30 extends upward from the guide cylinder 103 to the rotary drive member 24. The rotary drive member 24 can be connected to the upper end of the transmission screw rod 30. Specifically, the rotary drive member 24 can have a restricting hole 104 (see FIG. 25) in the center, and the drive device further includes a fixing member 105 that can be fixed in the restricting hole 104 from below. The upper end of the transmission screw rod 30 extends and is connected to the fixing member 105. The fixing member 105 can be disposed in the restricting hole 104, for example, by a snap fit. Specifically, the fixing member 105 can have a first threaded hole extending axially and a second threaded hole extending radially. The second threaded hole is in communication with the first threaded hole. The upper end of the transmission screw rod 30 is threaded into the first threaded hole. A fastener such as a screw is threaded into the second threaded hole and fastened to the transmission screw rod 30. Therefore, the threaded transmission rod 30 can be fixed to the fixed member 105 so that the threaded transmission rod 30 is fixed together with the rotation drive member 24 .

[0195] The fixing member 105 can be disposed on the limiting fixing member 35. A preferred embodiment is shown in FIG. 26 . The drive device can further include a mounting member 106. The mounting member 106 can be connected to the rotary drive member 24, for example, by a snap-fit ​​structure. For example, illustratively, snap buckles can be disposed at intervals on the outer circumferential surface of the mounting member 106, and ring-shaped snap slots cooperating with the snap buckles can be disposed at corresponding positions on the rotary drive member 24. The snap buckles can snap fit into the ring-shaped snap slots to restrict the axial movement of the rotary drive member 24 without restricting the rotational movement of the rotary drive member 24. In a preferred embodiment, a downwardly opening non-circular hole is provided in the mounting member 106, and the limiting fixing member 35 has a shape that matches the shape of the non-circular hole and is disposed within the non-circular hole. For example, the illustrated embodiment shows that the limiting fixing member 35 is square in shape and the hole in the mounting member 106 is a square hole.

[0196] The mounting member 106 can be further connected to the bottom cover 33 by fasteners such as screws. For example, illustratively, lugs having holes can be provided at intervals on the outer periphery of the mounting member 106, and studs can be provided at corresponding locations on the bottom cover 33. Screws can be passed through the holes in the lugs and secured to the studs. The bottom cover 33 can further include, for example, a wall body extending upward and forming a ring shape at its center. The mounting member 106 is disposed in a ring-shaped area surrounded by the wall body so as to limit radial movement of the mounting member 106.

[0197] In this embodiment, the limiting movement member 36 is connected to the transmission shaft 23. Specifically, as shown in FIG. 27 , the limiting movement member 36 can be disposed on the guide cylinder 103, specifically, on the upper portion of the guide cylinder 103, which is connected to the transmission shaft 23. Therefore, a static torque T0 generated by the binding force between the limiting movement member 36 and the limiting fixed member 35 can act on the transmission shaft 23 through the guide cylinder 103, so that the transmission shaft 23 can rotate relative to the threaded transmission rod 30. In a preferred embodiment, a non-circular hole can be provided on the upper portion of the guide cylinder 103, and the limiting movement member 36 has a shape that matches the shape of the non-circular hole and is disposed within the non-circular hole. For example, the illustrated embodiment shows that the shape of the limiting movement member 36 is square and the hole of the guide cylinder 103 is a square hole. The threaded transmission rod 30 extends upward through the hole of the limiting movement member 36 and the hole of the limiting fixed member 35.

[0198] In a preferred embodiment, the second drive device 55 (not shown) can drive the rotary drive member 24 by magnetic force. As shown in FIG. 26 , a plurality of magnets 101 are provided around the periphery of the rotary drive member 24. The magnets 101 are spaced apart in the circumferential direction defined by the rotation axis Ax. The second drive device 55 can be provided with an active magnet that cooperates with the magnet 101 of the rotary drive member 24. Magnetic attraction or magnetic repulsion can exist between the active magnet and the magnet 101 on the rotary drive member 24. The active magnet can rotate around the rotation axis Ax and together with the magnet, can rotate the rotary drive member 24 by magnetic force. In this embodiment, the outer peripheral wall of the bottom cover 33 covers the outer peripheral surface of the rotary drive member 24 to prevent the plurality of magnets 101 from being exposed.

[0199] In an implementation not shown, the second drive device 55 can be connected to the rotary drive member 24 by a gear transmission structure. For example, as an illustration, the outer circumferential surface of the rotary drive member 24 is provided with a gear portion 26. The output portion of the second drive device 55 is provided with teeth that engage with the teeth of the gear portion 26. Of course, other components can be provided between the output portion of the second drive device 55 and the gear portion 26 to achieve the gear transmission. A second electric motor 57 in the second drive device 55 provides power to drive the rotary drive member 24.

[0200] For the driving device according to the second preferred embodiment, an exemplary driving process is as follows:

[0201] 1. Executing the material dropping operation during material cleaning The transmission shaft 23 is in a first extreme position, the material washing compartment lid 10 is in a closed position, specifically, the first closed position where the seal 46 is located over the waste discharge port 9, and the second drive device 55 is already in a predetermined position. The second electric motor 57 is controlled to rotate in a first direction. Illustratively, the first direction may be a negative direction. The rotational drive member 24 is driven to rotate in the negative direction, for example, by magnetic force, while driving the transmission threaded rod 30 together in the negative direction. Furthermore, the rod end 31 of the transmission threaded rod 30 abuts against the lower limiting portion 49 of the limiting member 47 in the circumferential direction, and the driving force provided by the rotational drive member 24 overcomes the static torque generated by the binding force between the limiting fixed member 35 and the limiting movable member 36, so that the transmission threaded rod 30 can rotate in the negative direction together with the transmission shaft 23. At this time, the guide cylinder 103 also rotates together in the negative direction. Therefore, the stirring member 21 connected to the transmission shaft 23 rotates in the negative direction to perform the action of dropping material during material washing.

[0202] 2. Execution of opening operation of waste discharge outlet 9 The second motor 57 is controlled to rotate in a second direction opposite to the first direction. Illustratively, the second direction is a positive direction. The rotational drive member 24 is driven to rotate in the positive direction by, for example, magnetic force, while driving the threaded transmission rod 30 to rotate together in the positive direction. The rod end 31 of the threaded transmission rod 30 disengages from the lower limiting portion 49 of the limiting member 47. Under the static torque generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 does not rotate together with the threaded transmission rod 30 but moves linearly downward. At this time, the guide cylinder 103 also does not rotate. The transmission shaft 23 moves from the first extreme position to an additional position below it. Accordingly, the agitating member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly downward, so that the material washing compartment lid 10 moves from the first closed position to the second closed position where the seal portion 46 is located below the waste discharge port 9. At this time, the material washing chamber communicates with the waste outlet 9. The waste water in the material washing chamber can be discharged through the waste outlet 9 and the waste discharge conduit 80.

[0203] 3. Execution of the opening operation of the material washing compartment lid 10 As shown in FIG. 7, after performing the waste discharge operation, the second motor 57 continues to rotate in a second direction (e.g., the positive direction), driving the transmission shaft 23 to rotate in the positive direction together with the rotation drive member 24. The transmission shaft 23 does not rotate together with the transmission threaded rod 30 but continues to move linearly downward. At this time, the guide cylinder 103 also does not rotate. The transmission shaft 23 moves from the additional position to its lower second extreme position. Therefore, the stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also continue to move linearly downward so that the material washing compartment lid 10 moves from the second closed position to its lower open position. At this time, the material washing chamber communicates with the inner pot 4. The material in the material washing chamber can fall into the inner pot 4.

[0204] 4. Execute the material dropping operation while the material is falling As shown in FIG. 7 , after the opening operation of the material washing compartment lid 10, the second motor 57 is controlled to rotate in a second direction (e.g., the positive direction) to drive the rotational drive member 24 to continue rotating in the positive direction while driving the transmission screw rod 30 to rotate in the positive direction together. Furthermore, the rod end 31 of the transmission screw rod 30 circumferentially abuts against the upper limiting portion 48 of the transmission shaft 23, and the driving force provided by the rotational drive member 24 overcomes the static torque generated by the restraining force between the limiting fixed member 35 and the limiting moving member 36, so that the transmission screw rod 30 can rotate in the positive direction together with the transmission shaft 23. At this time, the guide cylinder 103 also rotates in the positive direction. Therefore, the stirring member 21 connected to the transmission shaft 23 rotates in the positive direction, performing the material dropping operation during the material dropping.

[0205] 5. Closing the material washing compartment lid 10 The second motor 57 is controlled to rotate in a first direction (e.g., the negative direction), driving the transmission screw rod 30 in the negative direction together with the rotational drive member 24, and the rod end 31 of the transmission screw rod 30 disengages from the upper limiting portion 48 of the transmission shaft 23. Under the static torque generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 does not rotate together with the transmission screw rod 30 but moves linearly upward. At this time, the guide cylinder 103 also does not rotate. Therefore, the stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly upward, so that the material washing compartment lid 10 moves from the open position to the first closed position via the second closed position. At this time, the material washing chamber does not communicate with either the inner pot 4 or the waste discharge port 9. That is, it returns to the position shown in FIG. 4.

[0206] 6. Execution of closing operation of waste discharge outlet 9 After one waste discharge operation, the second motor 57 is controlled to rotate in a first direction (e.g., the negative direction), driving the rotation drive member 24 to rotate in the negative direction while simultaneously driving the transmission threaded rod 30 in the negative direction. Under the static torque limit generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 does not rotate together with the transmission threaded rod 30 but moves linearly upward. At this time, the guide cylinder 103 also does not rotate. Therefore, the stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly upward, so that the material washing compartment lid 10 moves from the second closed position to the first closed position. At this time, the material washing chamber is no longer in communication with the waste discharge port 9, and material washing can be performed again. The operations of steps 1, 2, and 6 can be repeated to perform material washing multiple times.

[0207] 28 to 30 show diagrammatically a third preferred embodiment of the drive device.

[0208] In this embodiment, the structure of the drive device of this embodiment is substantially the same as that of the drive device of the first preferred embodiment, apart from the structure of the rotation limiting assembly 34. Therefore, components having substantially the same function as in the first preferred embodiment are numbered in the same way here and will not be further described and / or illustrated in detail for the sake of brevity.

[0209] As shown in FIGS. 28 to 30 , the rotation limiter assembly 34 further includes an offset member 110. The offset member 110 is disposed between the pressure plate 37 and the limiter fixing member 35. The offset member 110 is configured to abut against the limiter fixing member 35 so that the limiter fixing member 35 is offset toward the limiter moving member 36. Thus, the offset member 110 provides downward pressure on the limiter fixing member 35 so that the opposing surfaces of the limiter moving member 36 and the limiter fixing member 35 always abut against each other. In a preferred embodiment, the offset member 110 is a spring, and a protrusion can be provided on the limiter support of the pressure plate 37, with the spring sleeved onto the protrusion. A groove is provided in the limiter fixing member 35. A protrusion is provided on the bottom wall of the groove. The spring is located in the groove and sleeved onto the protrusion.

[0210] The shape of the groove is adapted to the shape of the spring, for example the shape of the groove is circular.

[0211] Both the opposing surfaces of the limiting moving member 36 and the limiting fixed member 35 are provided with limiting structures. By providing the limiting structures, the pressure of the rotating fixed member 105 on the rotating moving member generates a circumferential component. In other words, the restraining force between the two is pressure. When the rotating fixed member 105 rotates, there is friction in addition to the pressure. The circumferential components of the pressure and friction can generate the static torque T0 described above.

[0212] In a preferred embodiment, the limiting structure comprises limiting teeth 111. The limiting teeth 111 are arranged in the circumferential direction defined by the rotation axis Ax. Each limiting tooth 111 is provided with bevels on two sides. The lower surface of the fixed limiting member 35 is provided with limiting teeth 111. The upper surface of the moving limiting member 36 is provided with limiting teeth 111. The fixed limiting member 35 has limiting teeth 111 which engage with the moving limiting member 36. Regardless of the relative rotational positions of the fixed limiting member 35 and the moving limiting member 36, there is a circumferential component between them which generates a static torque T0, which facilitates the control operation of the drive device.

[0213] 31 to 34 show diagrammatically a fourth preferred embodiment of the drive device.

[0214] In this embodiment, the structure of the drive device of this embodiment is substantially the same as that of the drive device of the first preferred embodiment, apart from the structure of the transmission threaded rod 30. Therefore, components having substantially the same function as in the first preferred embodiment are numbered in the same way here and will not be further described and / or illustrated in detail for the sake of brevity.

[0215] 32 and 34, the circumferential surface of the rod end 31 of the threaded transmission rod 30 may be circular. Specifically, an upper protrusion 112 that protrudes upward may be provided on the upper surface of the rod end 31. When the transmission shaft 23 is in the second extreme position, the upper protrusion 112 may abut against the upper limiting portion 48. For example, two upper protrusions 112 may be provided symmetrically about the center.

[0216] 31 and 33, a lower protrusion 113 that protrudes downward can be provided on the lower surface of the rod end 31. When the transmission shaft 23 is in the first extreme position, the lower protrusion 113 can abut against the lower limiting portion 49. For example, two lower protrusions 113 can be provided symmetrically about the center.

[0217] Due to the abutment between the protrusion and the limiting portion, the transmission shaft 23 can be more securely connected to the transmission threaded rod 30 at the extreme positions, thereby ensuring that they rotate stably together.

[0218] The drive devices according to the four preferred implementations described above can be used not only in the material washing device 5 provided by the present application, but also in any suitable environment such as a material holding compartment or pot.

[0219] In a preferred embodiment (not shown), the drive device is applied to a material holding compartment capable of storing materials. The materials may be food materials such as rice, millet, corn, black beans, adzuki beans, mung beans, etc. A material supply opening may be provided at the bottom of the material holding compartment. A bottom lid may cover the material supply opening. The bottom lid is movable relative to the material holding compartment between a closed position in which the material supply opening is closed and an open position in which the material supply opening is open. The drive device is disposed above the material holding compartment, and a structure such as a transmission shaft 23 is disposed within the material holding compartment.

[0220] In this embodiment, the actuator member includes a bottom cover. The bottom of the transmission shaft 23 is connected to the bottom cover. When the transmission shaft 23 is in a first extreme position, the bottom cover is in a closed position. When the transmission shaft 23 is in a second extreme position, the bottom cover is in an open position. When the rotation drive member 24 rotates the rotation transmission member, the transmission shaft 23 moves linearly at least between the first and second extreme positions, driving the bottom cover to move between the open and closed positions. In the second extreme position, the transmission shaft 23 rotates to rotate the bottom cover in the open position so as to perform the material dropping operation during material dropping.

[0221] In another preferred embodiment (not shown), the drive device is applied to a pot, for example, the inner pot of a cookware. To wash the ingredients, ingredients and water can be added to the pot. The drive device is disposed above the pot, and a structure such as the transmission shaft 23 is disposed within the pot. In this embodiment, the actuator member includes a stirring member, and the bottom of the transmission shaft 23 is connected to the stirring member. The stirring member is movable up and down between an initial position located at the top of the pot and a stirring position extending to the bottom of the pot for stirring. When the transmission shaft 23 is in a first extreme position, the stirring member is in the initial position. When the transmission shaft 23 is in a second extreme position, the stirring member is in the stirring position.

[0222] When the rotation drive member 24 rotationally drives the rotation transmission member, the transmission shaft 23 moves linearly at least between a first extreme position and a second extreme position, driving the agitating member to move between the initial position and the agitating position. When the transmission shaft 23 is in the second extreme position, it rotates and rotationally drives the agitating member at the agitating position to perform the material dropping operation during material washing.

[0223] The overall working process of the cooking appliance according to a preferred embodiment will be described below with reference to FIGS. 2A to 7.

[0224] 2A and 2B, the cooking appliance is in an initial state, where the ingredient delivery compartment 16 is in a first position and does not communicate with the outlet of the ingredient storage compartment 15 or the ingredient inlet 7 of the ingredient washing device, and the ingredient washing compartment lid 10 is in a first closed position.

[0225] When it is desired to perform an ingredient supply operation, the first drive device 50 is controlled to operate the threaded rod member 52. Therefore, the ingredient delivery section 16 can be driven by the nut member 53 and moved downward to an intermediate position. The intermediate position is located between the first and second positions. As shown in FIG. 3, the cooking appliance is in the ingredient supply preparation state. At this time, the ingredient delivery section 16 is in the intermediate position, and the output portion of the second drive device 55 is docked with the corresponding position of the ingredient cleaning device 5. The ingredient delivery section 16 does not communicate with either the outlet of the ingredient storage compartment 15 or the ingredient inlet 7. It should be noted that the positions of the various devices within the cooking appliance are the same when the cooking appliance is in the ingredient supply preparation state, the ingredient supply completion state, and the ingredient cleaning state. Therefore, only FIG. 3 is used to schematically illustrate the cooking appliance in these three states.

[0226] The first driving device 50 is controlled to continue to operate the screw rod member 52. Therefore, the ingredient delivery compartment 16 is driven by the nut member 53 and can move downward to the second position. As shown in Figures 4 and 5, the cooking appliance is in the ingredient supply state. At this time, the ingredient delivery compartment 16 is in the second position and communicates with both the outlet of the ingredient storage compartment 15 and the ingredient inlet 7. In the ingredient supply state, the ingredient inlet 17 can communicate with the outlet of the ingredient storage compartment 15, and the ingredient outlet 18 can communicate with the ingredient inlet 7 of the ingredient washing device 5. Therefore, the ingredient in the ingredient storage compartment 15 enters the ingredient delivery compartment 16 through the ingredient inlet 17 and then enters the ingredient washing device 5 through the ingredient outlet 18. Based on the time, the amount of ingredient flowing into the ingredient washing chamber can be calculated.

[0227] After the material supply operation is completed or simultaneously with the material supply operation, the control unit can control the water pump of the water injection assembly to operate, so that the water in the clean water tank 82 is introduced into the material washing compartment body 6 through the water injection conduit to prepare for the material washing operation.

[0228] After the material supply operation and the water injection operation are completed, the first driving device 50 is controlled to operate the screw rod member 52. Therefore, as shown in Fig. 3, the material delivery section 16 is driven by the nut member 53 and moves upward to the intermediate position. In the intermediate position, the material delivery section 16 does not communicate with the outlet of the material storage section 15 or the material inlet 7 of the material washing device 5.

[0229] When it is desired to perform a material washing operation, as shown in FIG. 3, the second drive device 55 is controlled to rotate the rotary connecting member 27 in the negative direction, thereby rotating the rotary drive member 24 in the negative direction. The rod end 31 of the threaded transmission rod 30 circumferentially abuts the lower limiting portion 49 of the limiting member 47. The driving force provided by the rotary drive member 24 overcomes the static torque generated by the binding force between the fixed limiting member 35 and the moving limiting member 36, causing the transmission shaft 23 to rotate in the negative direction together with the threaded transmission rod 30. Therefore, the stirring member 21 connected to the transmission shaft 23 rotates in the negative direction, enabling the material washing operation. The material and water are present in the material washing chamber. The material and water are stirred together when driven by the stirring member 21. It can be seen that the seal portion 46 of the material washing compartment lid 10 is positioned above the waste discharge port 9 when performing a material washing operation.

[0230] When the material washing operation is completed and it is desired to drain the water, as shown in FIG. 6 , the second drive device 55 is controlled to rotate the rotary connecting member 27 in the positive direction, thereby rotating the rotary drive member 24 in the positive direction. The rod end 31 of the threaded transmission rod 30 disengages from the lower limiting portion 49 of the transmission shaft 23. Under the limitation of the static torque generated by the binding force between the limiting fixed member 35 and the limiting moving member 36, the transmission shaft 23 and the threaded transmission rod 30 rotate relative to each other, causing the transmission shaft 23 to move linearly downward at least to a further position. The agitating member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly downward, and the material washing compartment lid 10 moves downward to a second closed position where the seal portion 46 is below the waste discharge port 9. At this time, wastewater in the material washing chamber can flow through the waste discharge port 9 toward the waste discharge conduit 80 and the wastewater tank 81.

[0231] When drainage is complete and it is desired to perform the material dropping operation, as shown in FIG. 7, the second drive device 55 is controlled to rotate the rotary connecting member 27 in the positive direction, thereby rotating the rotary drive member 24 in the positive direction. The transmission shaft 23 and the threaded transmission rod 30 continue to rotate relative to each other. The transmission shaft 23 continues to move linearly downward at least to the second extreme position. The stirring member 21 and the material washing compartment cover 10 connected to the transmission shaft 23 also continue to move linearly downward. The material washing compartment cover 10 moves downward to the open position. The rotational drive member 24 is driven to continue to rotate in the positive direction. The rod end 31 of the threaded transmission rod 30 circumferentially abuts the upper limit portion 48 of the transmission shaft 23. The driving force provided by the rotational drive member 24 overcomes the static torque generated by the binding force between the fixed limit member 35 and the moving limit member 36, so that the transmission shaft 23 and the threaded transmission rod 30 rotate together in the positive direction. Therefore, the stirring member 21 connected to the transmission shaft 23 rotates in the positive direction, causing the washed material to flow into the inner pot 4 .

[0232] After the ingredients are poured into the inner pot 4, or simultaneously with the ingredients being poured into the inner pot 4, the control unit can control the water pump of the water injection assembly to operate. Thus, the water in the clean water tank 82 is introduced into the ingredient washing compartment body 6 through the water injection conduit and flows into the inner pot 4 through the ingredient washing chamber to prepare for cooking.

[0233] After the material dropping operation is completed, the second driving device 55 is controlled to rotate the rotation driving member 24 in the negative direction. The rod end 31 of the transmission screw rod 30 disengages from the upper limiting portion 48 of the transmission shaft 23, and the transmission shaft 23 and the transmission screw rod 30 rotate relative to each other under the static torque limit generated by the binding force between the limiting fixed member 35 and the limiting moving member 36. The transmission shaft 23 moves linearly upward at least to a first extreme position. The stirring member 21 and the material washing compartment lid 10 connected to the transmission shaft 23 also move linearly upward. The material washing compartment lid 10 moves upward to the first closed position. Then, the first driving device 50 is controlled to operate the screw rod member 52. Therefore, the material delivery compartment 16 is driven by the nut member 53 and returns upward to the first position.

[0234] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terms used herein are for the purpose of describing particular implementations only and are not intended to limit the present application. Features described herein in one implementation may be applied to other implementations, individually or in combination with other features, unless the feature is not applicable or otherwise specified in the other implementations.

[0235] Although the present application has been described through the above-mentioned implementations, it should be understood that the above-mentioned implementations are for the purposes of illustration and description only, and the present application is not limited to the above-mentioned implementations. Many variations and modifications are possible according to the teachings of the present application, and all of these variations and modifications are included in the scope of protection claimed by the present application.

Claims

1. A support member; a transmission shaft (23) having a threaded hole and configured to be connected to an actuator member; a rotary drive member (24) provided on the support member and rotatable around a rotation axis; a transmission threaded rod (30) having an upper end provided on the support member and a lower end connected to the transmission shaft (23) by the screw hole, wherein the transmission threaded rod (30) and the transmission shaft (23) are rotatable relative to each other so that the transmission shaft (23) moves linearly and are rotatable together about the rotation axis; a rotation limiting assembly (34) configured to limit the transmission shaft (23) for rotation with the transmission threaded rod (30); Equipped with One of the transmission threaded rod (30) and the transmission shaft (23) functions as a rotation transmission member to which the rotation drive member (24) is connected, and the rotation limiting assembly (34) is provided on the support member and connected to the other of the transmission threaded rod (30) and the transmission shaft (23); When the rotation drive member (24) rotates the rotation transmission member, the transmission shaft (23) rotates when it is at a first extreme position and / or a second extreme position, and moves linearly at least between the first extreme position and the second extreme position. Drive unit.

2. The rotation limiting assembly (34) includes a limiting fixed member (35) and a limiting moving member (36), between which there is a restraining force that limits the rotation of the limiting moving member (36) around a rotation axis relative to the limiting fixed member (35), and the limiting moving member (36) is connected to the other of the transmission threaded rod (30) and the transmission shaft (23) and is rotatable relative to the limiting fixed member (35). The drive device according to claim 1 .

3. The limiting movement member (36) and the limiting fixing member (35) are attracted to each other by magnetic force, and / or the limiting fixing member (35) is disposed on the upper end or side of the limiting movement member (36). The drive device according to claim 2 .

4. The rotation limiting assembly (34) further comprises an offsetting member (110) abutting the fixed limiting member (35) so that the fixed limiting member (35) is offset toward the moving limiting member (36), and opposing surfaces of the moving limiting member (36) and the fixed limiting member (35) abut against each other, and both are provided with limiting structures.

4. The drive device according to claim 2 or 3.

5. The limiting structure includes limiting teeth (111) arranged in a circumferential direction defined by the axis of rotation. The drive device according to claim 4.

6. The transmission shaft (23) functions as the rotation transmission member, and when the rotation drive member (24) rotationally drives the rotation transmission member, the transmission shaft (23) rotates between the first extreme position and the second extreme position while moving linearly.

6. A drive device according to any one of claims 1 to 5.

7. The rotary drive member (24) is cylindrical and has a guide hole (25), the transmission screw rod (30) and the transmission shaft (23) are positioned in the guide hole (25), and the transmission shaft (23) moves linearly along the surface of the guide hole (25). The drive device according to claim 6.

8. the guide holes (25) are non-circular holes, and / or The upper portion of the rotary drive member (24) has a larger outer dimension than the lower portion thereof, or the rotary drive member (24) has an outer dimension that gradually decreases from the upper portion to the lower portion. The drive device according to claim 7.

9. The support member has a downwardly depressed receiving groove (38) at its center, the rotation limiting assembly (34) is positioned within the receiving groove (38), and the upper end of the transmission threaded rod (30) extends upward into the receiving groove (38) and is connected to the rotation limiting assembly (34). A drive device according to any one of claims 1 to 8.

10. The transmission screw rod (30) functions as the rotation transmission member, and when the rotation drive member (24) rotationally drives the rotation transmission member, the transmission shaft (23) moves linearly between the first extreme position and the second extreme position without rotating.

6. A drive device according to any one of claims 1 to 5.

11. The rotary drive member (24) is connected to the upper end of the threaded transmission rod (30), the support member includes a cylindrical support column (102) extending downward, and the threaded transmission rod (30) and the transmission shaft (23) are disposed within the support column (102). The drive device according to claim 10.

12. The apparatus further includes an induction cylinder (103) located on the support (102) and having an induction hole (25), wherein a limiting movement member (36) is disposed in the induction cylinder (103), the transmission screw rod (30) and the transmission shaft (23) are located in the induction hole (25), and the transmission shaft (23) moves linearly along the surface of the induction hole (25). The drive device according to claim 11.

13. The rotary drive member (24) further includes a fixed member (105), a restricting hole (104) is provided at the center thereof, the fixed member (105) is fixed to the restricting hole (104) and is positioned above the restricting fixed member (35), and the upper end of the transmission screw rod (30) extends and is connected to the fixed member (105).

13. A drive arrangement according to any one of claims 10 to 12.

14. the rotary drive member (24) comprises a gear portion (26); the drive device further comprises a rotary connecting member (27) configured to be connected to an output portion of the drive device and having an outer circumferential surface with teeth, the gear portion (26) being engaged with the teeth of the rotary connecting member (27); 14. A drive arrangement according to any one of claims 1 to 13.

15. The support member includes an upper portion and a lower portion located below the upper portion and removably connected to the upper portion, the gear portion (26) and the rotary connecting member (27) are both sandwiched between the lower portion and the upper portion, and the upper end of the transmission threaded rod (30) is disposed on the upper portion.

15. The drive arrangement of claim 14.

16. the rotary connection member (27) is configured to engage the output portion and comprises a connection port (28) having an inner peripheral wall with spaced apart, vertically extending first ribs (29) thereon, the output portion comprising a vertically extending second rib (66), the first rib (29) configured to circumferentially abut the second rib (66) when the output portion is engaged with the connection port (28); 16. A drive device according to claim 14 or 15.

17. a plurality of magnets are provided around the periphery of the rotary drive member (24), the magnets being spaced apart in a circumferential direction defined by the rotation axis such that the drive device drives the rotary drive member (24) by magnetic force; 17. A drive arrangement according to any one of the preceding claims.

18. the rotary drive member (24) is located on the support member and is rotatable relative to the support member, the rotary drive member being circular disk-shaped; 18. A drive arrangement according to any one of the preceding claims.

19. The transmission shaft (23) has an axial bore (70) having an upper limiting portion (48) and a lower limiting portion (49) therein, and the transmission threaded rod (30) has a rod end (31) protruding in the radial direction, the rod end (31) being restricted within the axial bore (70) and abutting circumferentially against the lower limiting portion when the transmission shaft (23) is in the first extreme position, and abutting circumferentially against the upper limiting portion when the transmission shaft (23) is in the second extreme position.

19. A drive arrangement according to any one of the preceding claims.

20. the rod end (31) has a polygonal circumferential surface configured to abut both the upper and lower limiting portions; 20. The drive arrangement of claim 19.

21. The rod end (31) has an upper protrusion (112) that protrudes upward and / or a lower protrusion (113) that protrudes downward, the upper protrusion (112) being configured to abut against the upper limiting portion (48), and the lower protrusion (113) being configured to abut against the lower limiting portion (49).

21. A drive arrangement according to claim 19 or 20.

22. the upper limiting portion (48) and the transmission shaft (23) are configured as one or separate components, and / or the lower limiting portion (49) and the transmission shaft (23) are configured as one or separate components; 22. A drive arrangement according to any one of claims 19 to 21.

23. The upper limiting portion (48) and the transmission shaft (23) are configured as an integral unit, and the drive device further includes a limiting member (47), a portion of which is inserted into the axial hole (70) from below and is formed together with the lower limiting portion (49).

23. A drive arrangement according to any one of claims 19 to 22.

24. The drive device is applied to a material washing device (5), and the actuator member comprises a stirring member (21) and a material washing compartment cover (10) connected to the stirring member (21), and the transmission shaft (23) rotates in both the first and second extreme positions, but rotates in the opposite direction when the rotation drive member (24) rotationally drives the rotation transmission member.

24. A drive arrangement according to any one of claims 1 to 23.

25. the drive device is applied to a material holding compartment, the actuator member comprises a bottom cover, and the transmission shaft (23) rotates in a second extreme position when the rotary drive member (24) rotationally drives the rotary transmission member; or The driving device is applied to a pot, the actuator member includes a stirring member (21), and the transmission shaft (23) rotates at the second extreme position when the rotation driving member (24) rotationally drives the rotation transmission member.

24. A drive arrangement according to any one of claims 1 to 23.

26. An ingredient cleaning device (5) for cooking utensils, comprising: A drive device according to any one of claims 1 to 24; a material washing compartment body (6) forming a material washing chamber having a material outlet (8), said support member being located on top of said material washing compartment body (6); an agitating member (21) that functions as the actuator member and is connected to the transmission shaft (23); a material washing compartment lid (10) located below the stirring member (21) and connected to the stirring member (21); Equipped with the material washing compartment cover (10) is in a closed position covering the material discharge port (8) when the transmission shaft (23) is in the first extreme position, and in an open position opening the material discharge port (8) when the transmission shaft (23) is in the second extreme position; When the rotary drive member (24) rotates the rotary transmission member, the transmission shaft (23) rotates in both the first and second extreme positions, but in the opposite direction so that the stirring member (21) rotates, and the transmission shaft (23) moves at least linearly between the first and second extreme positions so that the material washing compartment lid (10) moves between the open and closed positions. Material cleaning equipment.

27. Further comprising a top cover (22) which functions as the support member and covers the material washing compartment body (6), the top cover (22) and the material washing compartment body (6) being configured as an integral unit or as separate components which may or may not be removable.

27. The material washing apparatus of claim 26.

28. The material washing compartment body (6) has a waste discharge opening (9), the material washing compartment lid (10) includes a seal portion, the outer circumferential surface of which abuts the inner circumferential surface of the material washing compartment body (6), and the transmission shaft (23) drives the material washing compartment lid (10) to move linearly between a first closed position where the seal portion is located above the waste discharge opening (9) and a second closed position where the seal portion is located below the waste discharge opening (9).

28. Apparatus for washing materials according to claim 26 or 27.

29. A drive device according to claim 23, The material washing compartment cover (10) includes a cover plate (44), an auxiliary cover plate (45), and a seal portion (46) arranged between the cover plate (44) and the auxiliary cover plate (45), the cover plate (44) is sandwiched between the stirring member (21) and the restricting member (47) which are fixedly connected to each other, the outer circumferential surface of the seal portion (46) abuts against the inner circumferential surface of the material washing compartment body (6), the auxiliary cover plate (45), the seal portion (46), and the cover plate (44) are fixedly connected, or The stirring member (21) is rotatable relative to the material washing compartment lid (10).

29. Apparatus for washing materials according to any one of claims 26 to 28.

30. a drive device according to claim 7, wherein the minimum distance between the bottom of the rotary drive member (24) and the stirring member (21) is 2 mm or more; or 12. The driving device according to claim 11, wherein the minimum distance between the bottom of the support member and the stirring member (21) is 2 mm or more.

29. Apparatus for washing materials according to any one of claims 26 to 28.

31. A pot body (2), A pot lid (3), A material washing apparatus according to any one of claims 26 to 30; Equipped with The pot lid (3) is configured to cover the pot body (2) so that a cooking chamber is formed between the pot lid and the pot body (2), and the material washing device is disposed on the pot lid (3). Cooking utensils.

32. The pot further comprises a host support (11) and a drive device configured to drive the rotary drive member (24), wherein the pot body (2) is seated at a base of the host support (11), and the drive device is located on the host support (11) or the pot lid (3).

32. The cooking device of claim 31.

33. The pot further comprises a material storage compartment (15) and a material delivery compartment (16) disposed on the host support (11) and positioned above the pot lid (3), a support chamber (77) disposed in the material delivery compartment (16), the drive device housed in the support chamber (77) from above, and an output portion of the drive device extending downward from a bottom wall of the support chamber (77).

33. The cooking device of claim 32.

34. the support chamber (77) has a vertically extending device guide surface (F2) therein, and the drive device is arranged in the support chamber (77) from top to bottom along the device guide surface (F2); and / or the material delivery compartment (16) and the drive device are both at least partially located within the material storage compartment (15) or at least partially located outside the material storage compartment (15) but within a space enclosed by the material storage compartment (15); 34. The cooking device of claim 33.

35. the material delivery section (16) is movable between at least a first position and an intermediate position located below the first position, the drive device moves together with the material delivery section (16) between the first position and the intermediate position, and the drive device is docked with a corresponding position of the material washing device when in the intermediate position; and / or the material delivery compartment (16) is movable at least between the intermediate position and a second position located below the intermediate position, the drive device remains stationary when the material delivery compartment (16) moves between the intermediate position and the second position, and when the material delivery compartment (16) is in the second position, the material delivery compartment (16) communicates with the material storage compartment (15) and a material washing chamber; 35. The cooking device of claim 33 or 34.

36. a drive device arranged on the pot lid (3) and configured to drive the rotary drive member (24); 36. Cooking equipment according to any one of claims 31 to 35.

37. A pot body (2), A pot lid (3), a host support (11); A material washing apparatus according to any one of claims 26 to 30; Equipped with The pot lid (3) is configured to cover the pot body (2) so that a cooking chamber is formed between the pot lid and the pot body (2), the pot body (2) is seated on the base of the host support (11), and the material washing device is disposed on the host support (11) and located above the pot lid (3). Cooking utensils.

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