Pot cover assembly of pressure cooking utensil and pressure cooking utensil

Abstract

The utility model discloses a pressure cooking utensil and a pot cover component thereof, the pot cover component comprises a lining cover and a lock cover, the lining cover is provided with a handle and a shifting fork piece, the shifting fork piece is provided with a connecting part fixed with the lock cover and a rotating part fixed with the handle; the pot cover assembly further comprises a driving assembly, the driving assembly is arranged on the shifting fork piece and located between the connecting part and the rotating part, the driving assembly comprises a motor and a transmission piece, a matching structure is fixed to the lining cover, and under driving of the motor, the transmission piece rotates relative to the matching structure and drives the shifting fork piece to rotate around the rotating part so that the lock cover can rotate. According to the utility model, not only can the pot cover be automatically locked and unlocked, but also a user can manually drive the shifting fork piece to move to open the cover by rotating the handle after power failure, so that a manual operation mode better conforms to the use habit of the user, the learning cost of the user is reduced, and an additional manual unlocking structure does not need to be arranged on the pot cover assembly; the structure of the pot cover assembly is simplified.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a pot lid assembly and a pressure cooking appliance. Background Technology

[0002] Pressure cookers typically have a lid consisting of a liner and a locking mechanism. The locking mechanism can rotate relative to the liner to engage with the locking teeth on the pot body, thus locking the lid to the pot. Alternatively, the locking teeth on the lid can be displaced from the pot body to unlock it. Before pressure cooking, the lid must be locked to ensure safety during the process. After cooking, the lid must be unlocked before opening the pot.

[0003] In traditional technology, switching between the lid and the pot body is usually done manually by the user, with a handle on the lid that the user controls to rotate the lid. However, with technological advancements, some pressure cookers, especially high-end models, use automatic control to rotate the lid, thus achieving automatic locking and unlocking of the lid.

[0004] However, this method typically involves fixing the motor to the cover. For the motor to rotate the cover, it requires significant torque, necessitating a speed-changing mechanism or a high-torque motor, which undoubtedly increases cost. Furthermore, it requires more parts and a more complex mechanism, occupying more space. Speed-changing mechanisms also increase the motor's reverse force, making manual opening of the cover difficult. Common speed-changing mechanisms also include gear drives. If the driving wheel connected to the motor is fixed, the driven wheel connected to the cover cannot be too small; otherwise, the cover's displacement distance will be insufficient for opening. Conversely, a large driven wheel requires increased motor torque.

[0005] Chinese patent CN118873014A discloses a rice cooker with an automatic opening and closing lock function. The inner lining of the lid is provided with meshing teeth, and a ring lock is rotatably disposed on the inner lining. A motor is disposed on the ring lock, and a gear is disposed on the motor and meshing with the meshing teeth. Under the drive of the motor, the gear meshes and rotates relative to the inner lining, and sequentially drives the motor and the ring lock to rotate relative to the inner lining, so that the ring lock rotates to a locked or unlocked state with the inner pot.

[0006] In the above solution, the automatic rotation of the ring lock is achieved through motor control, thereby enabling automatic switching between the lid and the pot body. However, in actual use, there may be a sudden power outage during cooking, causing the automatic unlocking process to fail. Therefore, a manual operation mechanism is also needed to handle this special situation.

[0007] Based on this, in the above solution, the inner lining is provided with a second clearance groove, and the annular lock is also provided with a manual lever. The manual lever passes through the second clearance groove and is used to drive the annular lock to rotate under the action of external force.

[0008] However, this method requires creating large holes in the lid to allow users to insert their hands or tools to operate the manual lever. This is not only difficult to manufacture but also poses a risk of external dust and impurities entering and contaminating the inside of the lid. Furthermore, operating within the confined space is both strenuous and inconvenient for users. On the other hand, the motor's speed-changing mechanism increases reverse resistance, further increasing the resistance during operation and making manual lid opening even more difficult. In addition, the structure of this model is completely different from traditional manual operation models, often preventing users from immediately mastering its use, significantly increasing the learning curve and impacting the user experience. Utility Model Content

[0009] This utility model provides a lid assembly for a pressure cooking appliance and a pressure cooking appliance, to solve the problems of using a motor to drive the lid rotation, which requires a large torque from the motor, increasing costs, and the complex and difficult-to-operate manual lid opening structure.

[0010] The technical solution adopted in this utility model is as follows:

[0011] A pressure cooking appliance lid assembly includes a liner and a locking cover located below the liner. The liner is provided with a handle and a fork. The fork has a connecting portion fixed to the locking cover and a rotating portion fixed to the handle. The lid assembly also includes a drive assembly disposed on the fork and located between the connecting portion and the rotating portion. The drive assembly includes a motor and a transmission component. The liner is fixed with a mating structure that cooperates with the transmission component. Driven by the motor, the transmission component rotates relative to the mating structure and drives the motor to rotate around the rotating portion with the fork, so that the locking cover rotates to lock or unlock the lid assembly to the pot body.

[0012] In this invention, the locking lid can be controlled via a drive component, enabling automatic locking and unlocking of the lid assembly and the pot body. The handle and fork are retained, with the fork connected to both the lid and handle. When the user turns the handle, the fork rotates around the rotating part, causing the connecting part to rotate the lid. In the event of a power outage, the user can manually drive the fork to open the lid by turning the handle. This not only makes manual operation more user-friendly and significantly reduces the learning curve, but also eliminates the need for an additional manual unlocking structure on the lid assembly, reducing manufacturing difficulty and simplifying the lid assembly structure. Furthermore, the drive component of this invention can be adapted to traditional manually operated models without significant modifications to the overall lid structure, easily providing automatic operation functionality to manually operated models and greatly reducing modification costs.

[0013] Furthermore, compared to the traditional design where the motor is fixed to the center of the cover, the drive assembly in this application is fixed to the shift fork and can move with it. It is further located between the connecting part (the force-bearing position of the lock cover) and the rotating part (the rotation center of the shift fork). The distance between the drive assembly and the force-bearing position of the lock cover is short, resulting in a short resistance arm. The shift fork is rotated by the reaction force between the transmission mechanism and the mating structure on the cover. The drive assembly requires less force to overcome resistance, thus achieving labor-saving. Simultaneously, it eliminates the need for numerous complex speed-changing structures, reducing the motor's output torque and saving costs. Moreover, when manually operating the shift fork using the handle, only the motor's torque needs to be overcome to rotate the transmission component around the mating structure, without needing to overcome the resistance of various speed-changing structures, making manual operation even more labor-saving.

[0014] The handle is located at the center of the cover, the shift fork extends radially along the cover, the rotating part is located at the center of the cover and is fixedly connected to the handle so that the rotation center of the shift fork coincides with the center of the cover, and the connecting part is located at the end of the shift fork away from the center of the cover.

[0015] In this design, the handle and shift fork are both fixed to the center of the liner, simplifying the assembly and positioning of each component. This not only facilitates assembly but also improves relative positional stability and ensures reliable movement. The rotation centers of both the locking cover and the shift fork are located at the center of the liner, making their positional stability more reliable and preventing significant positional deviations relative to the liner, thus saving internal space in the lid assembly. Simultaneously, the connecting part extends radially outward along the liner to a position near the liner edge and is fixed to the locking cover near its edge. This ensures that the point where the connecting part applies force to the locking cover is eccentric to the lock cover and close to its edge, making the shift fork's drive of the locking cover less effort.

[0016] The distance between the drive component and the rotating part is less than the distance between the drive component and the connecting part.

[0017] In this design, since the shift fork extends radially along the liner, the closer the shift fork is to the edge of the liner, the greater the arc length it slides during rotation and the larger the space it occupies. Therefore, by placing the drive assembly close to the rotating part, the drive assembly can drive the shift fork with less effort, while the space occupied by the drive assembly itself is smaller. This greatly saves the internal space of the lid assembly, not only preventing interference between the drive assembly and other internal components of the lid assembly, but also helping to reduce the overall volume of the lid assembly, achieving miniaturization and thinning.

[0018] The connecting part is provided with a guide structure, and the liner is provided with a guide groove extending circumferentially along the lock cover. The guide structure is located in the guide groove and can slide along the guide groove.

[0019] In this design, the guide groove extends along the rotation direction of the locking cover, thus cooperating with the guide structure to guide and limit the movement of the connecting part. This ensures that the connecting part can only oscillate back and forth within the guide groove, making the movement of the shift fork more stable and reliable. Simultaneously, the length of the guide groove is the stroke of the connecting part. When the user operates manually, the guide structure and the ends of the guide groove stop, providing the user with force feedback and allowing them to directly understand the status of the lid assembly, thus improving the user experience.

[0020] The transmission component has a first meshing tooth, and the mating structure is provided with a second meshing tooth, so that the transmission component and the mating structure mesh together.

[0021] In this design, the transmission mechanism between the transmission component and the mating structure is achieved through the meshing of the first and second meshing teeth. These two components can not only be located on the same plane but also occupy less space, thus further saving internal space in the lid assembly. Furthermore, the meshing mechanism ensures a more stable fit without slippage, allowing the mating structure to stably apply a reaction force to the transmission component, driving the shift fork to rotate smoothly and easily. Simultaneously, when the shift fork moves to a certain position, the first and second meshing teeth can engage to form a self-locking mechanism.

[0022] The transmission component has a transmission protrusion protruding towards the liner, and the mating structure includes a mating groove corresponding to the transmission protrusion. The transmission protrusion can engage with the mating groove to drive the shift fork component to move under the action of reaction force.

[0023] In this design, the transmission mechanism between the transmission component and the mating structure is achieved through the engagement of the transmission protrusion and the mating groove. When the motor drives the transmission protrusion to rotate, the mating groove, unable to move, generates a reaction force on the transmission protrusion, causing the shift fork to move. The protrusion and groove structures are easier to manufacture than meshing teeth, thus reducing manufacturing costs.

[0024] The shift fork is located on the upper side of the cover, the mating structure is located on the upper surface of the cover, and the transmission component is located on the lower side of the shift fork to mate with the mating structure.

[0025] In this design, the cooperating structure is fixed on the upper surface of the liner, and the transmission component is below the shift fork component. The two are in the same plane, which saves space in the height direction of the lid assembly and helps to achieve a thinner and lighter design of the lid assembly.

[0026] The center of the liner is provided with an upwardly protruding positioning rib, and one end of the shift fork is provided with a positioning hole, which is fitted onto the positioning rib.

[0027] In this design, the positioning hole of the shift fork is engaged with the positioning rib at the center of the liner, which enables the shift fork and the liner to be positioned and installed. This not only facilitates the installation and fixing of the shift fork and improves the accuracy of the position, but also, during the movement of the shift fork relative to the liner, the positioning rib and the positioning hole work together to limit the movement, so that the shift fork can only rotate around the center of the liner.

[0028] The shift fork has a recessed mounting groove, and the motor is fixed in the mounting groove.

[0029] In this design, the motor is fixed within the mounting recess. This makes the installation between the motor and the shift fork more stable, reduces the difficulty of motor assembly, and prevents the motor from detaching from the shift fork. Furthermore, at least a portion of the motor is housed within the mounting recess, ensuring that the motor and the shift fork at least partially overlap in the vertical direction. This reduces the height of the motor protruding from the upper surface of the shift fork, further saving internal space in the lid assembly.

[0030] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned pot lid assembly. The pot lid assembly is detachably placed on the pot body to open or close the pot body; or, one end of the pot lid assembly is rotatably connected to the pot body so that the pot lid assembly can be flipped up and down relative to the pot body to open or close the pot body. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0032] Figure 1 This is a cross-sectional view of a portion of the pot lid assembly according to one embodiment of the present invention;

[0033] Figure 2 This is an exploded view of the liner and shift fork in a pot lid assembly according to one embodiment of the present invention.

[0034] Figure 3 This is a schematic diagram of the structure of a portion of the pot lid assembly according to one embodiment of the present invention;

[0035] Figure 4 This is a top view of a portion of the pot lid assembly structure according to one embodiment of the present invention;

[0036] Figure 5 for Figure 4 Top view of the fork component in the middle pot lid assembly when it is rotated to another position;

[0037] Figure 6 This is a top view of the liner according to one embodiment of the present invention;

[0038] Figure 7 This is a schematic diagram of the structure of the shift fork component according to one embodiment of the present invention;

[0039] Figure 8 for Figure 7 Front view of the center shift fork;

[0040] Figure 9 for Figure 7 Bottom view of the center shift fork;

[0041] Figure 10 This is a front view of the shift fork component according to another embodiment of the present invention.

[0042] in:

[0043] 1. Liner; 11. Guide groove; 12. Mating structure; 121. Second meshing tooth;

[0044] 2. Lock cover;

[0045] 3. Handle;

[0046] 4. Shift fork; 41. Connecting part; 411. Through hole; 42. Rotating part; 43. Guide structure; 44. Positioning hole; 45. Mounting groove; 451. Clearance notch;

[0047] 5. Drive assembly; 51. Motor; 52. Transmission component; 521. First meshing tooth; 522. Transmission protrusion;

[0048] 6. Positioning component; 61. Positioning rib. Detailed Implementation

[0049] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0050] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0051] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0053] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] like Figures 1 to 3 , Figure 6As shown, a pressure cooking appliance lid assembly includes a liner 1 and a locking cover 2 located below the liner 1. The liner 1 is provided with a handle 3 and a fork 4. The fork 4 has a connecting portion 41 fixed to the locking cover 2 and a rotating portion 42 fixed to the handle 3. The lid assembly also includes a drive assembly 5, which is disposed on the fork 4 and located between the connecting portion 41 and the rotating portion 42. The drive assembly 5 includes a motor 51 and a transmission component 52. The liner 1 is fixed with a mating structure 12 that cooperates with the transmission component 52. Under the drive of the motor 51, the transmission component 52 rotates relative to the mating structure 12 and drives the motor 51 to rotate around the rotating portion 42 with the fork 4, so that the locking cover 2 rotates to lock or unlock the lid assembly with the pot body.

[0055] It is understood that the mating structure 12 is fixed to the cover 1 and its position remains unchanged. When the motor 51 drives the transmission component 52 to rotate, the transmission component 52 applies a force to the mating structure 12. However, the mating structure 12 cannot change its position. Therefore, under the action of the stopping force, a reaction force is generated on the transmission component 52, causing the shift fork 4 and the drive assembly 5 to rotate around the rotating part 42. In turn, the connection part 41 fixed to the lock cover 2 drives the lock cover 2 to rotate, so that the lock cover 2 moves to the unlocked position or the locked position.

[0056] In this invention, the drive component 5 enables control of the locking lid 2, achieving automatic locking and unlocking of the lid assembly and the pot body. The handle 3 and the fork 4 are retained, with the fork 4 connected to both the locking lid 2 and the handle 3. When the user rotates the handle 3, the fork 4 follows the handle 3 and rotates around the rotating part 42, causing the connecting part 41 to rotate the locking lid 2. In the event of a power outage, the user can manually drive the fork 4 to open the lid by rotating the handle 3. This not only makes manual operation more user-friendly and significantly reduces the learning curve, but also eliminates the need for an additional manual unlocking structure on the lid assembly, reducing manufacturing difficulty and simplifying the lid assembly structure. Furthermore, the drive component 5 of this invention can be adapted to traditional manually operated models without significant modifications to the overall lid structure, easily providing automatic operation functionality to manually operated models and greatly reducing modification costs.

[0057] Furthermore, compared to the traditional solution where the motor 51 is fixed to the center of the cover 1, the drive assembly 5 of this application is fixed to the shift fork 4 and can move with the shift fork 4. It is further located between the connecting part 41 (the force-bearing position of the lock cover 2) and the rotating part 42 (the rotation center of the shift fork 4). The distance between the drive assembly 5 and the force-bearing position of the lock cover 2 is short, resulting in a short resistance arm. The reaction force between the transmission mechanism and the mating structure 12 on the cover 1 drives the shift fork 4 to rotate. The drive assembly 5 requires less force to overcome the resistance, thus achieving the purpose of saving effort. At the same time, it eliminates the need for numerous complex speed-changing structures, and the output torque of the motor 51 can also be reduced, saving costs. Simultaneously, when manually operating the drive fork 4 using the handle 3, only the torque of the motor 51 needs to be overcome to drive the transmission component 52 to rotate around the mating structure 12, without needing to overcome the resistance of various speed-changing structures, making manual operation even more effortless.

[0058] It is understandable that the shape of the liner 1 can be circular or non-circular (e.g., the circle of a runway), such as Figure 4 As shown, the liner 1 includes a main body and a connecting rib protruding laterally from one side of the main body. The connecting rib is used for rotatable connection with the pot body or for aesthetic purposes. The center of the liner 1 refers to the center of the main body.

[0059] This utility model does not limit the location of the handle 3. In a preferred embodiment, such as... Figure 1 , Figure 4 , Figure 5 As shown, the handle 3 is located at the center of the cover 1, the shift fork 4 extends radially along the cover 1, the rotating part 42 is located at the center of the cover 1 and is fixedly connected to the handle 3 so that the rotation center of the shift fork 4 coincides with the center of the cover 1, and the connecting part 41 is located at the end of the shift fork 4 away from the center of the cover 1.

[0060] Handle 3 and shift fork 4 are both fixed to the center of the cover 1, making the assembly and positioning of each component simpler and more convenient. This also improves relative positional stability and ensures reliable movement. The rotation centers of the locking cover 2 and shift fork 4 are both located at the center of the cover 1, making the positional stability of the shift fork 4 and locking cover 2 more reliable and preventing significant positional deviations relative to the cover 1, thus saving internal space in the pot lid assembly. Simultaneously, the connecting part 41 extends radially outward along the cover 1 to a position near the edge of the cover 1 and is fixed to the locking cover 2 near its edge. This ensures that the point where it applies force to the locking cover 2 is eccentric to the lock cover 2 and close to its edge, making it easier for the shift fork 4 to drive the locking cover 2.

[0061] Of course, in other embodiments, the handle 3 can also be set off-center from the cover 1 and the lock cover 2 to increase the lever arm between the user's operating position and the rotation center of the lock cover 2, so that the user can operate the handle 3 with less effort. This is not limited here.

[0062] Preferably, such as Figure 3 , Figure 4 , Figure 5 As shown, the distance between the drive assembly 5 and the rotating part 42 is less than the distance between the drive assembly 5 and the connecting part 41.

[0063] Since the shift fork 4 extends radially along the liner 1, the closer the shift fork 4 is to the edge of the liner 1, the greater the arc length it slides during rotation and the larger the space it occupies. Therefore, by placing the drive assembly 5 close to the rotating part 42, the drive assembly 5 can drive the shift fork 4 with less effort, while the space occupied by the drive assembly 5 itself is small. This can greatly save the internal space of the pot lid assembly, not only preventing the drive assembly 5 from interfering with other internal components of the pot lid assembly, but also helping to reduce the overall volume of the pot lid assembly, achieving miniaturization and thinning.

[0064] In a preferred embodiment of this implementation, such as Figure 3 , Figure 4 , Figure 5 As shown, the connecting part 41 is provided with a guide structure 43, and the cover 1 is provided with a guide groove 11 extending circumferentially along the lock cover 2. The guide structure 43 is located in the guide groove 11 and can slide along the guide groove 11.

[0065] The guide groove 11 extends along the rotation direction of the locking cover 2, thereby cooperating with the guide structure 43 to guide and limit the movement of the connecting part 41, so that the connecting part 41 can only swing back and forth within the guide groove 11, thus making the movement of the fork 4 more stable. At the same time, the length of the guide groove 11 is the movement stroke of the connecting part 41. When the user operates manually, after the guide structure 43 stops at both ends of the guide groove 11, the user can obtain force feedback, thereby directly knowing the status of the lid assembly and improving the user experience.

[0066] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 7 As shown, the guide structure 43 includes a guide block that is separately disposed from the shift fork 4. The connecting part 41 is provided with a through hole 411. The upper end of the guide block is located in the through hole 411, and the lower end passes through the liner 1 and is fixedly connected to the lock cover 2.

[0067] It should be noted that this utility model does not limit the structure and mating method of the transmission component 52 and the mating structure 12, and includes, but is not limited to, the situations listed in the following embodiments:

[0068] Implementation Method 1: In this implementation method, as follows Figure 2 , Figure 6 , Figure 9As shown, the transmission component 52 has a first meshing tooth 521, and the mating structure 12 is provided with a second meshing tooth 121. The transmission component 52 and the mating structure 12 mesh and engage.

[0069] In this design, the transmission mechanism between the transmission component 52 and the mating structure 12 is achieved through the meshing of the first meshing tooth 521 and the second meshing tooth 121. These two components can not only be located on the same plane but also occupy less space, thus further saving internal space in the lid assembly. Furthermore, the meshing mechanism ensures a more stable fit without slippage, allowing the mating structure 12 to stably apply a reaction force to the transmission component 52, driving the shift fork 4 to rotate smoothly. Simultaneously, when the shift fork 4 moves to a certain position, the first meshing tooth 521 and the second meshing tooth 121 can also engage to form a self-locking mechanism.

[0070] Of course, the transmission component 52 and the mating structure 12 may not be located in the same plane, as long as they can mesh together.

[0071] Specifically, such as Figure 6 , Figure 9 As shown, the transmission component 52 is a gear structure with a first meshing tooth 521 around its circumference. The mating structure 12 is a fixed block fixed to the cover 1, and a second meshing tooth 121 is machined on the fixed block. Of course, the mating structure 12 can also be a rack, a gear ring, or a gear, which is not limited here.

[0072] Implementation Method Two: In this implementation method, as follows Figure 10 As shown, the transmission member 52 has a transmission protrusion 522 protruding toward the cover 1, and the mating structure 12 includes a mating groove corresponding to the transmission protrusion 522. The transmission protrusion 522 can engage with the mating groove to drive the shift fork 4 to move under the action of the reaction force.

[0073] The transmission engagement between the transmission component 52 and the mating structure 12 is achieved through the engagement of the transmission protrusion 522 and the mating groove. When the motor 51 drives the transmission protrusion 522 to rotate, the mating groove cannot move, thus generating a reaction force on the transmission protrusion 522, causing the shift fork component 4 to move. The protrusion structure and groove structure are easier to process than meshing teeth, which can reduce the processing and manufacturing cost.

[0074] Specifically, such as Figure 10 As shown, the transmission component 52 is a rotating wheel, and the transmission protrusion 522 is disposed on the lower surface of the rotating wheel.

[0075] Preferably, such as Figure 1 , Figure 7 , Figure 8 As shown, the shift fork 4 is located on the upper side of the cover 1, the mating structure 12 is disposed on the upper surface of the cover 1, and the transmission component 52 is located on the lower side of the shift fork 4 to mate with the mating structure 12.

[0076] The fitting structure 12 is fixed on the upper surface of the liner 1, and the transmission component 52 is below the shift fork component 4. The two are in the same plane, which can save space in the height direction of the pot lid assembly and help to achieve a thinner and lighter design of the pot lid assembly.

[0077] As a preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 7 , Figure 9 As shown, the center of the cover 1 is provided with an upwardly protruding positioning rib 61, and one end of the shift fork 4 is provided with a positioning hole 44, which is fitted onto the positioning rib 61.

[0078] The positioning hole 44 of the shift fork 4 is inserted into the positioning rib 61 at the center of the cover 1, which realizes the installation and positioning of the shift fork 4 and the cover 1. This not only facilitates the installation and fixing of the shift fork 4 and improves the accuracy of the position installation, but also, during the movement of the shift fork 4 relative to the cover 1, the positioning rib 61 and the positioning hole 44 cooperate to limit the movement, so that the shift fork 4 can only rotate around the center of the cover 1.

[0079] It should be noted that the positioning rib 61 can be an integrally formed structure with the cover 1, that is, a rib structure protruding upward from the center of the cover 1, or it can be a separate structure formed from the cover 1, for example, Figure 1 , Figure 2 As shown, the pot lid assembly also includes a positioning member 6, which is assembled at the center of the liner 1. A positioning rib 61 is provided on the positioning member 6 for interlocking with the rotating part 42 of the fork member 4.

[0080] In a preferred embodiment, such as Figure 7 As shown, the shift fork 4 is provided with a downwardly recessed mounting groove 45, and the motor 51 is fixed in the mounting groove 45.

[0081] The motor 51 is fixed within the mounting recess 45, which on the one hand makes the installation between the motor 51 and the shift fork 4 more stable, reduces the assembly difficulty of the motor 51, and prevents the motor 51 from falling off the shift fork 4. On the other hand, at least a portion of the motor 51 is accommodated within the mounting recess 45, so that the motor 51 and the shift fork 4 at least partially overlap in the height direction, which can reduce the height of the motor 51 protruding from the upper surface of the shift fork 4, thereby further saving internal space of the pot lid assembly.

[0082] Specifically, such as Figure 7As shown, the outer periphery of the motor 51 is provided with a first fixing rib protruding outwards. The side wall of the mounting groove 45 is provided with an avoidance notch 451 corresponding to the fixing rib, and a second fixing rib is provided. Both the first and second fixing ribs have fixing holes, and the first and second fixing ribs are fastened together by screws or other fasteners. Of course, the motor 51 and the shift fork 4 can also be fixed by snap-fit ​​or other methods, which is not limited here.

[0083] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned pot lid assembly. The pot lid assembly is detachably placed on the pot body to open or close the pot body; or, one end of the pot lid assembly is rotatably connected to the pot body so that the pot lid assembly can be flipped up and down relative to the pot body to open or close the pot body.

[0084] In one embodiment, the lid assembly can be removed from the pot body. In this embodiment, an electrical coupling structure can be provided on the lid assembly and the pot body respectively. When the lid assembly closes the pot body, the coupling structure is plugged in to complete the circuit connection, so that the drive assembly 5 is electrically connected to the control unit on the pot body, thereby enabling the drive assembly 5 to be controlled by the program.

[0085] In another embodiment, one end of the lid assembly is rotatably connected to the pot body, allowing the lid assembly to flip up and down relative to the pot body to open or close it. The lid assembly cannot be removed from the pot body, thus maintaining a constant connection and eliminating the need for separate storage. Simultaneously, a wire can be used to electrically connect the control unit on the pot body to the drive component 5 on the lid assembly, with the wire passing through the connection point between the lid assembly and the pot body to achieve the circuit connection.

[0086] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0087] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0088] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1.A pressure cooker cover assembly, comprising: a cover base and a cover lock arranged below the cover base, the cover base being provided with a handle and a fork, the fork having a connecting portion fixed with the cover lock and a rotating portion fixed with the handle; and a driving assembly arranged on the fork between the connecting portion and the rotating portion, the driving assembly comprising a motor and a transmission member, the cover base being provided with a matching structure matched with the transmission member, the transmission member being rotated relative to the matching structure under the driving of the motor, and the motor being driven to rotate with the fork around the rotating portion to rotate the cover lock to lock or unlock the pressure cooker cover assembly with a pot body. 2.The pressure cooker cover assembly according to claim 1, wherein: the handle is arranged at the center of the cover base, the fork extends along the radial direction of the cover base, the rotating portion is arranged at the center of the cover base and fixedly connected with the handle, so that the rotating center of the fork coincides with the center of the cover base, and the connecting portion is arranged at one end of the fork away from the center of the cover base. 3.The pressure cooker cover assembly according to claim 2, wherein: the distance between the driving assembly and the rotating portion is smaller than the distance between the driving assembly and the connecting portion. 4.The pressure cooker cover assembly according to claim 2, wherein: the connecting portion is provided with a guide structure, the cover base is provided with a guide sliding groove extending along the circumferential direction of the cover lock, and the guide structure is arranged in the guide sliding groove and can slide along the guide sliding groove. 5.The pressure cooker cover assembly according to claim 1, wherein: the transmission member has first engaging teeth, the matching structure is provided with second engaging teeth, and the transmission member and the matching structure are engaged and matched. 6.The pressure cooker cover assembly according to claim 1, wherein: the transmission member has a transmission protrusion protruding towards the cover base, the matching structure comprises a matching groove corresponding to the transmission protrusion, and the transmission protrusion can be matched with the matching groove to drive the fork to move under the action of a reaction force. 7.The pressure cooker cover assembly according to claim 1, wherein: the fork is arranged on the upper side of the cover base, the matching structure is arranged on the upper surface of the cover base, and the transmission member is arranged on the lower side of the fork to match with the matching structure. 8.The pressure cooker cover assembly according to claim 7, wherein: the center of the cover base is provided with a positioning protruding rib protruding upwards, one end of the fork is provided with a positioning hole, and the positioning hole is sleeved on the positioning protruding rib. 9.The pressure cooker cover assembly according to claim 1, wherein: the fork is provided with a downward recessed mounting recess, and the motor is fixed in the mounting recess. 10.A pressure cooker, comprising a pot body, ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The pot cover assembly of any one of claims 1-9 is removably placed on the pot body to open or cover the pot body, or one end of the pot cover assembly is rotatably connected to the pot body, so that the pot cover assembly can be flipped up and down relative to the pot body to open or cover the pot body.

Images