Pot cover assembly and pressure cooking utensil

Abstract

The utility model provides a pot cover assembly and a pressure cooking utensil. The pot cover assembly comprises a shell part and a pot cover part, the cover body part is rotatably arranged on the shell part; the transmission part is in transmission connection with the cover body part, the transmission part comprises a transmission rod and a matching shaft, and under the condition that the matching shaft is located at a first matching position of a matching groove of the transmission rod, the first reference line passes through the matching shaft; under the condition that the matching shaft is located at the second matching position of the matching groove of the transmission rod, the center line of the first groove section of the matching groove is located on the side, away from the first reference line, of the second reference line, and the center line is in a convex curve shape in the direction away from the first reference line. According to the pot cover assembly, the power transmission efficiency between the transmission rod and the matching shaft can be improved, abrasion of the transmission rod and the matching shaft is reduced, the service life of the transmission part can be prolonged, and the convenience of locking and unlocking operation is improved.

Description

Technical Field

[0001] This disclosure relates to the field of cooking equipment technology, and in particular to a pot lid assembly and a pressure cooking appliance. Background Technology

[0002] In related technologies, the lid and body of a pressure cooker are typically locked together using a locking mechanism. The lid can be rotated relative to the pot body to switch between locked and unlocked states. To facilitate locking and unlocking, some pressure cookers are equipped with an operating mechanism that transmits power to the lid, allowing the user to easily rotate it. However, in practical applications, it has been found that some pressure cookers generate significant noise and vibration during lid locking and unlocking. The transmission components between the operating mechanism and the lid have a short lifespan and are prone to damage. Furthermore, the operation involves considerable resistance, making it inconvenient for users. Utility Model Content

[0003] This disclosure aims to address at least one of the technical problems existing in the prior art or related technologies.

[0004] Therefore, the first aspect of this disclosure provides a pot lid assembly.

[0005] A second aspect of this disclosure provides a pressure cooking appliance.

[0006] In view of the above, a pot lid assembly is provided according to a first aspect of the present disclosure, comprising:

[0007] Shell section;

[0008] The cover portion is rotatably disposed on the aforementioned housing portion;

[0009] A transmission unit is connected to the aforementioned cover portion. The transmission unit includes a transmission rod and a mating shaft. The transmission rod is adapted to rotate relative to the aforementioned housing portion about a first axis. The mating shaft is adapted to rotate relative to the aforementioned housing portion about a second axis. The second axis is substantially parallel to the first axis. The mating shaft is movably disposed in a mating groove of the transmission rod. The mating groove has a first mating position and a second mating position. The first mating position is located between the second mating position and the first axis. The mating groove includes a first groove segment located between the first mating position and the second mating position. The position of the aforementioned cover portion in the rotation direction and the position of the aforementioned transmission rod in the rotation direction both change with the position of the aforementioned mating shaft in the aforementioned first groove segment.

[0010] Specifically, the line connecting the aforementioned first axis and the aforementioned second axis is used as the first reference line, and the line connecting the axis of the aforementioned mating shaft and the aforementioned first axis when the aforementioned mating shaft is located in the aforementioned second mating position is used as the second reference line; when the aforementioned mating shaft is located in the aforementioned second mating position, the center line of the aforementioned first groove segment is located on the side of the aforementioned second reference line away from the aforementioned first reference line, and the center line of the aforementioned first groove segment is a convex curve that bulges away from the aforementioned first reference line.

[0011] In one feasible implementation, the aforementioned cover portion is rotatable between a locked position and an unlocked position. When the aforementioned cover portion is in the aforementioned locked position, the aforementioned cover portion is adapted to lock into the pot assembly. When the aforementioned cover portion is in the aforementioned unlocked position, the locking engagement between the aforementioned cover portion and the pot assembly is released.

[0012] When the aforementioned mating shaft is in the aforementioned second mating position, the aforementioned cover portion is in one of the aforementioned locking position and the aforementioned unlocking position.

[0013] In one possible implementation, when the aforementioned mating shaft is located in the aforementioned first mating position, the aforementioned cover portion is located in the other of the aforementioned locking position and the aforementioned unlocking position.

[0014] In one feasible embodiment, the aforementioned mating groove further has a third mating position and a fourth mating position. The third mating position is located between the aforementioned fourth mating position and the aforementioned first axis. The aforementioned mating groove includes a second groove segment located between the aforementioned third mating position and the aforementioned fourth mating position. One end of the aforementioned second groove segment near the aforementioned third mating position is connected to one end of the aforementioned first groove segment near the aforementioned first mating position, so that the aforementioned mating shaft can move between the aforementioned second mating position and the aforementioned fourth mating position. The position of the aforementioned cover part in the rotation direction and the position of the aforementioned transmission rod in the rotation direction both change with the position of the aforementioned mating shaft in the aforementioned second groove segment.

[0015] In the case where the aforementioned mating shaft is located in the aforementioned fourth mating position, the aforementioned cover portion is located in the other of the aforementioned locking position and the aforementioned unlocking position.

[0016] In one feasible implementation, when the aforementioned mating shaft is located in the aforementioned fourth mating position, the line connecting the axis of the aforementioned mating shaft and the aforementioned first axis is used as the third reference line. When the aforementioned mating shaft is located in the aforementioned fourth mating position, the center line of the aforementioned second groove segment is located on the side of the aforementioned third reference line away from the aforementioned first reference line, and the center line of the aforementioned second groove segment is a convex curve in the direction away from the aforementioned first reference line.

[0017] In one feasible implementation, the aforementioned mating groove further includes a transition groove section communicating between the aforementioned first groove section and the aforementioned second groove section; and / or

[0018] The transition between the aforementioned first groove segment and the aforementioned second groove segment is smooth.

[0019] In one feasible implementation, the aforementioned mating groove further includes a first extension groove segment, the first extension groove segment being connected to one end of the aforementioned first groove segment near the aforementioned second mating position; and / or

[0020] The aforementioned mating groove also includes a second extended groove section, which is connected to one end of the aforementioned second groove section near the aforementioned fourth mating position.

[0021] In one feasible implementation, the aforementioned mating groove further includes a third extended groove section, which is connected to one end of the aforementioned first groove section near the aforementioned first mating position.

[0022] In one feasible implementation, the pot lid assembly:

[0023] A drive unit is disposed in the housing part, and a transmission unit is drivingly connected between the drive unit and the cover part.

[0024] In one possible implementation, the aforementioned mating shaft is connected between the aforementioned driving unit and the aforementioned transmission rod; or

[0025] The aforementioned mating shaft is connected between the aforementioned cover and the aforementioned transmission rod.

[0026] A pressure cooking appliance is provided according to a second aspect of the embodiments of this disclosure, comprising:

[0027] As mentioned in any of the first aspects above, the pot lid assembly.

[0028] Compared with the prior art, the present disclosure has at least the following beneficial effects: the pot lid assembly provided in the embodiments of the present disclosure can improve the power transmission efficiency between the transmission rod and the mating shaft, reduce the wear of the transmission rod and the mating shaft, extend the service life of the transmission part, improve the convenience of locking and unlocking operations, and reduce the noise and vibration of the transmission part during use, thereby improving the user experience of the product. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of exemplary embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is a schematic diagram illustrating the connection principle of a connecting rod and a column in a conventional technology embodiment.

[0031] Figure 2 This is a schematic structural diagram of a pot lid assembly according to an embodiment of the present disclosure;

[0032] Figure 3 This is a schematic diagram illustrating the engagement principle of a transmission rod and a mating shaft according to an embodiment of this disclosure.

[0033] Figure 4 This is a schematic partial enlarged view of a pot lid assembly in a first state according to an embodiment of the present disclosure;

[0034] Figure 5 A schematic partial enlarged view of a second state of a pot lid assembly according to an embodiment of this disclosure;

[0035] Figure 6 A schematic structural diagram of the pot lid assembly according to another embodiment of the present disclosure from a first perspective;

[0036] Figure 7 A schematic exploded view of a pot lid assembly according to another embodiment of this disclosure;

[0037] Figure 8 A schematic structural diagram of the pot lid assembly from a second perspective, representing another embodiment of the present disclosure;

[0038] Figure 9 A schematic partial enlarged view of the pot lid assembly in a first state according to another embodiment of the present disclosure;

[0039] Figure 10 A schematic partial enlarged view of the second state of the pot lid assembly according to another embodiment of this disclosure;

[0040] Figure 11 A schematic partial enlarged view of the pot lid assembly in a third state according to another embodiment of this disclosure;

[0041] Figure 12 A schematic partial enlarged view of the pot lid assembly in a fourth state according to another embodiment of the present disclosure;

[0042] Figure 13 A schematic partial enlarged view of the pot lid assembly in a fifth state according to another embodiment of this disclosure;

[0043] Figure 14 A schematic partial enlarged view of the pot lid assembly in a sixth state according to another embodiment of this disclosure;

[0044] Figure 15A schematic partial enlarged view of the pot lid assembly in a seventh state according to another embodiment of this disclosure;

[0045] Figure 16 A schematic partial enlarged view of the eighth state of the pot lid assembly according to another embodiment of this disclosure;

[0046] Figure 17 A schematic structural diagram of a pot lid assembly according to another embodiment of the present disclosure;

[0047] Figure 18 A schematic partial enlarged view of a pot lid assembly according to another embodiment of the present disclosure;

[0048] Figure 19 This is a schematic connection structure diagram of the transmission unit and the drive unit according to one embodiment of the present disclosure.

[0049] in, Figures 1 to 19 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0050] 410' connecting rod; 420' column; 4101' drive slot;

[0051] 100 Housing section; 200 Drive section; 300 Cover section; 400 Transmission section; 500 Hanging shaft;

[0052] 410 Transmission rod; 420 Mating shaft; 430 First transmission component;

[0053] 4101 mating groove;

[0054] 4101a First slot section; 4101b Second slot section; 4101c Transition slot section; 4101d Third extension slot section.

[0055] First axis OO; Second axis PP;

[0056] First mating position P1; Second mating position P2; Third mating position P3; Fourth mating position P4;

[0057] First reference line R1; Second reference line R2; Third reference line R3;

[0058] Centerline of the first tank section C1; Centerline of the second tank section C2;

[0059] First mating wall A1; Second mating wall A2; Third mating wall A3; Fourth mating wall A4; Detailed Implementation

[0060] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0061] It should be noted that in related technologies, the lid and body of a pressure cooker are typically locked together via a locking structure. The lid can switch between locked and unlocked states by rotating relative to the pot body when covering the rim. To facilitate locking and unlocking the lid, some pressure cookers are equipped with an operating mechanism. This mechanism transmits power to the lid, allowing the user to easily rotate the lid. For example... Figure 1 As shown, some of the aforementioned transmission mechanisms in conventional technologies include: Figure 1 The connecting rod 410' and the column 420' shown are provided. The connecting rod 410' has a driving groove 4101' that extends in a straight line. The column 420' is movably disposed in the driving groove 4101'. When the operating member outputs power, the connecting rod 420' can rotate around the first rotation axis OO' and can apply a force to the column 420' through the groove wall of the driving groove 4101' to drive the column 420' to rotate around the second rotation axis PP'. However, it is not difficult to see that when the aforementioned connecting rod 410' and column 420' change from state S1' to state S2' during the transmission process, the extension direction of the groove wall A1' of the drive groove 4101' that applies driving force to the column 420' changes from an attitude that is approximately perpendicular to the rotation direction of the column 420' to an attitude that is close to the rotation direction of the column 420'. Consequently, the pressure angle of the force applied by the aforementioned groove wall A1' to the column 420' increases, resulting in a decrease in the driving efficiency of the column 420'. This makes it easy to generate greater noise and vibration when locking and unlocking the pot lid. The transmission components between the operating part and the pot lid have a short service life and are prone to damage. Furthermore, the resistance during operation is greater, making it inconvenient for users.

[0062] It should be noted that, Figure 1 The length of the line connecting the first rotation axis OO' and the second rotation axis PP' has been shortened.

[0063] like Figures 2 to 19As shown, in order to at least solve one of the technical problems existing in the aforementioned related technologies or conventional technologies, a pot lid assembly is provided according to a first aspect of the present disclosure, comprising: a housing portion 100; a lid portion 300 rotatably disposed on the housing portion 100; and a transmission portion 400 tractively connected to the lid portion 300. The transmission portion 400 includes a transmission rod 410 and a mating shaft 420. The transmission rod 410 is adapted to rotate about a first axis OO relative to the housing portion 100, and the mating shaft 420 is adapted to rotate about a second axis PP relative to the housing portion 100. The second axis PP is substantially parallel to the first axis OO. The mating shaft 420 is movably disposed in a mating groove 4101 of the transmission rod 410. The mating groove 4101 has a first mating position P1 and a second mating position P2. The first mating position P1 is located between the second mating position P2 and the first axis OO. 101 includes a first groove segment 4101a located between the aforementioned first mating position P1 and the aforementioned second mating position P2. The position of the aforementioned cover portion 300 in the rotational direction and the position of the aforementioned transmission rod 410 in the rotational direction both change with the position of the aforementioned mating shaft 420 within the aforementioned first groove segment 4101a. The first reference line R1 is the line connecting the aforementioned first axis OO and the aforementioned second axis PP, and the second reference line R2 is the line connecting the axis of the aforementioned mating shaft 420 and the aforementioned first axis OO when the aforementioned mating shaft 420 is located in the aforementioned second mating position P2. When the aforementioned mating shaft 420 is located in the aforementioned second mating position P2, the center line C1 of the aforementioned first groove segment 4101a is located on the side of the aforementioned second reference line R2 away from the aforementioned first reference line R1, and the center line C1 of the aforementioned first groove segment 4101a is a convex curve that protrudes in a direction away from the aforementioned first reference line R1.

[0064] The pot lid assembly provided in this embodiment includes a housing portion 100, a lid portion 300, and a transmission portion 400. The lid portion 300 is disposed on the housing portion 100 and can rotate relative to the housing portion 100. The transmission portion 400 is connected to the lid portion 300. In practical applications, power can be transmitted between the transmission portion 400 and the lid portion 300, thereby enabling the transmission portion 400 to drive the lid portion 300 to rotate relative to the housing portion 100.

[0065] It is understood that, in practical applications, the lid assembly provided in this disclosure can be disposed on the pot body assembly of a pressure cooking appliance or used as a component of the pressure cooking appliance. Exemplarily, the lid portion 300 of the aforementioned lid assembly can be used to cover or open the pot opening of the aforementioned pressure cooking appliance's pot body assembly. The lid portion 300 and the aforementioned pot body assembly can form a compatible locking structure. For example, when the pot body assembly has pot teeth, the lid portion 300 can have fastening teeth adapted to the pot teeth. When the lid portion 300 covers the pot opening, the correspondence between the fastening teeth and the pot teeth can be adjusted by rotating the lid portion 300. Accordingly, the lid portion 300 can have a locked position and an unlocked position in the rotation direction. Position; In the aforementioned locking position, the aforementioned buckle and the aforementioned pot teeth are locked together to fix the position of the lid part 300 in the guiding direction of the pot opening, thereby preventing the pot opening from opening during cooking, facilitating pressure build-up inside the pot body assembly, and making it convenient for the pressure cooking appliance to pressure cook the food; In the aforementioned unlocking position, the locking between the aforementioned buckle and the aforementioned pot teeth is released, and the aforementioned lid part 300 can move in the guiding direction of the pot opening to make the lid part 300 suitable for separating from the aforementioned pot body assembly, thereby facilitating the opening of the pot opening by the aforementioned lid part 300, so as to facilitate the user to put in the food or take it out after cooking.

[0066] The aforementioned transmission unit 400 may include a transmission rod 410 and a mating shaft 420 adapted to rotate relative to the aforementioned housing part 100. It is understood that when the aforementioned transmission unit 400 receives power, the aforementioned transmission rod 410 and the aforementioned mating shaft 420 can generate rotational motion relative to the aforementioned housing part 100 and can transmit power to the aforementioned cover part 300. There is a power transmission relationship between the aforementioned transmission rod 410 and the aforementioned mating shaft 420, that is, when one of the aforementioned transmission rod 410 and the aforementioned mating shaft 420 rotates, it can drive the other to rotate. The aforementioned transmission rod 410 is adapted to rotate relative to the aforementioned housing part 100 about a first axis OO, and the aforementioned mating shaft 420 is adapted to rotate relative to the aforementioned housing part 100 about a second axis PP that is substantially parallel to the aforementioned first axis OO. Thus, the planes in which the rotation directions of the aforementioned transmission rod 410 and the aforementioned mating shaft 420 are located can also be substantially parallel, thereby facilitating power transmission and motion coordination between the aforementioned transmission rod 410 and the aforementioned mating shaft 420.

[0067] It is understood that the aforementioned second axis PP is approximately parallel to the aforementioned first axis OO, meaning that the aforementioned first axis OO and the aforementioned second axis PP can be parallel to each other or have a high degree of relative parallelism. In practical applications, the included angle between the first axis OO and the second axis PP can be set to be greater than or equal to 0° and less than or equal to 3°. For example, the included angle can be, but is not limited to, 0.02°, 0.5°, 1°, 2° or 2.5°, etc.

[0068] like Figures 3 to 5 and Figures 9 to 17 As shown, the aforementioned transmission rod 410 has a mating groove 4101, and the aforementioned mating shaft 420 is disposed within the aforementioned mating groove 4101 and can be movably mated with the aforementioned mating groove 4101. It can be understood that the groove wall of the aforementioned mating groove 4101 can contact the aforementioned mating shaft 420, thereby generating a relative force between the aforementioned transmission rod 410 and the aforementioned mating shaft 420. This allows the rotation of one of the aforementioned transmission rod 410 and the aforementioned mating shaft 420 to drive the other to rotate, thus facilitating power transmission between the aforementioned transmission rod 410 and the aforementioned mating shaft 420. Accordingly, during the transmission process between the transmission rod 410 and the mating shaft 420, the position of the mating shaft 420 within the mating groove 4101 will change.

[0069] It is understood that there is a gap between the groove wall of the aforementioned mating groove 4101 and the aforementioned first axis OO, and there is a gap between the aforementioned mating shaft 420 and the aforementioned second axis PP; therefore, when the aforementioned transmission rod 410 is the driving component relative to the aforementioned mating shaft 420, that is, when the aforementioned mating shaft 420 is located between the aforementioned transmission rod 410 and the aforementioned cover portion 300 in the transmission chain, the aforementioned transmission rod 410 can generate rotation about the aforementioned first axis OO under the action of power. Based on the gap between the aforementioned mating shaft 420 and the aforementioned second axis PP, the groove wall of the aforementioned mating groove 4101 applies force to the aforementioned mating shaft 420. The force exerted can generate a torque that drives the mating shaft 420 to rotate around the aforementioned second axis PP. When the mating shaft 420 is the driving component relative to the aforementioned transmission rod 410, that is, when the aforementioned transmission rod 410 is located between the mating shaft 420 and the aforementioned cover portion 300 in the transmission chain, the mating shaft 420 can rotate around the aforementioned second axis PP under the action of power. Based on the distance between the groove wall of the aforementioned mating groove 4101 and the aforementioned first axis OO, the force exerted by the mating shaft 420 on the groove wall of the aforementioned mating groove 4101 can generate a torque that drives the transmission rod 410 to rotate around the aforementioned second axis PP. Accordingly, during the rotation of the mating shaft 420 around the aforementioned second axis PP, the radial position of the mating shaft 420 in relation to the aforementioned first axis OO will change, that is, the mating shaft 420 will move closer to or further away from the second axis PP during the rotation around the aforementioned second axis PP.

[0070] The aforementioned mating groove 4101 has a first mating position P1 and a second mating position P2. Compared to the aforementioned second mating position P2, the aforementioned first mating position P1 is closer to the aforementioned first axis OO. The aforementioned mating groove 4101 includes a first groove segment 4101a extending between the aforementioned first mating position P1 and the aforementioned second mating position P2. Correspondingly, the aforementioned mating shaft 420 can move within the aforementioned first groove segment 4101a. Thus, during the transmission process of the transmission rod 410 and the mating shaft 420, the mating shaft 420 can adapt to the positional changes with the first axis OO by moving along the first groove segment 4101a, so as to facilitate smooth transmission between the mating groove 4101 and the transmission rod 410 and reduce the probability of jamming between the mating shaft 420 and the transmission rod 410.

[0071] like Figure 3As shown, during the movement of the aforementioned mating shaft 420 along the aforementioned first groove segment 4101a, the mating shaft 420 will simultaneously rotate around the aforementioned second axis PP. If the line connecting the aforementioned first axis OO and the second axis PP is taken as the first reference line R1, then the circumferential angle between the mating shaft 420 and the aforementioned first reference line R1 on the aforementioned second axis PP will be positively correlated with the distance between the mating shaft 420 and the aforementioned first mating position P1. That is, the closer the mating shaft 420 is to the aforementioned first mating position P1 in the first groove segment 4101a, the closer the mating shaft 420 is to the aforementioned first reference line R1 in the circumferential direction of the aforementioned second axis PP; conversely, the closer the mating shaft 420 is to the aforementioned second mating position P2 in the first groove segment 4101a, the farther the mating shaft 420 is from the aforementioned first reference line R1 in the circumferential direction of the aforementioned second axis PP. Thus, during the movement of the aforementioned mating shaft 420 along the aforementioned first groove segment 4101a, it can rotate within a certain angle range in the circumferential direction of the second axis PP. Based on the transmission relationship between the mating shaft 420 and the transmission rod 410, the transmission rod 410 can also rotate within a certain angle range in the circumferential direction of the first axis OO. Therefore, when one of the mating shaft 420 and the transmission rod 410 receives power, it can drive the other to rotate within a certain angle range around the corresponding axis. The rotational power can be transmitted directly or indirectly to the aforementioned cover portion 300 through the aforementioned other component, so as to drive the cover portion 300 to rotate between the aforementioned locking position and the aforementioned unlocking position.

[0072] It is understood that in a projection plane perpendicular to the first axis OO or the second axis PP, the orthographic projection of the line connecting the first axis OO and the second axis PP is a straight line. When the first axis OO and the second axis PP are parallel, the first reference line R1 can be the common perpendicular of the first axis OO and the second axis PP.

[0073] like Figure 3As shown, if the line connecting the axis of the aforementioned mating shaft 420 and the aforementioned first axis OO is taken as the second reference line R2 when the aforementioned mating shaft 420 is located in the aforementioned second mating position P2, then when the aforementioned mating shaft 420 is located in the aforementioned second mating position P2, the center line C1 of the aforementioned first groove segment 4101a is set to be located on the side of the aforementioned second reference line R2 away from the aforementioned first reference line R1, and the center line C1 of the aforementioned first groove segment 4101a is set to be a convex curve that protrudes away from the aforementioned first reference line R1, thereby constraining the aforementioned first groove segment 4101a and its groove wall. The shape and extension form facilitate the generation of a small pressure angle between the groove wall of the first groove section 4101a and the aforementioned mating shaft 420 during the movement of the aforementioned mating shaft 420 within the aforementioned first groove section 4101a. This ensures and improves the power transmission efficiency between the transmission rod 410 and the mating shaft 420, reduces wear on the transmission rod 410 and the mating shaft 420, extends the service life of the transmission part 400, improves the convenience of locking and unlocking the cover part 300 and the driving efficiency of the cover part 300, and reduces noise and vibration of the transmission part 400 during use, thereby improving the user experience of the product.

[0074] It should be noted that, Figure 3 The length of the aforementioned first reference line R1 has been shortened; the arc L1 is used to schematically represent the rotation trajectory of the aforementioned mating shaft 420 around the aforementioned second axis PP.

[0075] It is understood that the centerline C1 of the aforementioned first groove segment 4101a refers to the midline of the aforementioned first groove segment 4101a in the groove width direction. Correspondingly, the extension direction of the centerline C1 of the aforementioned first groove segment 4101a can be used to characterize the extension direction of the aforementioned first groove segment 4101a. The groove wall of the first groove segment 4101a may include a first mating wall A1 and a second mating wall A2 arranged opposite to each other in the groove width direction. When the aforementioned mating shaft 420 moves within the aforementioned first groove segment 4101a, the mating shaft 420 is located between the aforementioned first mating wall A1 and the aforementioned second mating wall A2, and at least one of the aforementioned first mating wall A1 and the aforementioned second mating wall A2 abuts against the aforementioned mating shaft 420, so as to facilitate power transmission between the transmission rod 410 and the mating shaft 420, and based on the aforementioned first... The constraint of the centerline C1 of the groove segment 4101a, when the aforementioned mating shaft 420 is located at the aforementioned second mating position P2, means that at least a portion of the aforementioned first mating wall A1 and at least a portion of the aforementioned second mating wall A2 are located on the side of the aforementioned second reference line R2 away from the aforementioned first reference line R1, and both extend along a convex curve protruding away from the aforementioned first reference line R1; the groove width of the aforementioned first groove segment 4101a can be uniformly distributed in the extension direction of the centerline C1 of the aforementioned first groove segment 4101a, thereby further improving the consistency of the extension shape of the aforementioned first mating wall A1, the aforementioned second mating wall A2 and the aforementioned centerline C1 of the aforementioned first groove segment 4101a, which is beneficial to further ensure that a force with a small pressure angle is generated between the aforementioned mating wall and the mating shaft 420 during transmission. For example, when the aforementioned mating shaft 420 is located at the aforementioned second mating position P2, the aforementioned first mating wall A1 is located between the aforementioned second mating wall A2 and the aforementioned first reference line R1.

[0076] It is understood that the axis of the aforementioned mating shaft 420 refers to the structural axis of the mating shaft 420. In practical applications, the axis of the aforementioned mating shaft 420 can be approximately parallel to the aforementioned first axis OO or the aforementioned second axis PP, thereby facilitating the contact between the outer peripheral wall of the mating shaft 420 and the groove wall of the mating groove 4101. Correspondingly, the rotation axis of the mating shaft 420 is also the aforementioned second axis PP.

[0077] It is understood that the aforementioned pressure angle refers to the angle between the force exerted by the active component of the transmission rod 410 and the driven component during transmission and the rotation direction of the driven component. Therefore, the smaller the aforementioned pressure angle, the larger the component of the aforementioned force in the rotation direction of the driven component, and the higher the transmission efficiency of the aforementioned force. This can reduce the wear of the transmission rod 410 and the driven component 420, extend the service life of the transmission part 400, improve the convenience of locking and unlocking the cover part 300 and the driving efficiency of the cover part 300, and reduce the noise and vibration of the transmission part 400 during use, thereby improving the user experience of the product.

[0078] like Figure 3 As shown, taking the aforementioned transmission rod 410 and the aforementioned mating shaft 420 as an example when they transition from state S1 to state S2 during transmission, state S1 is the state when the aforementioned mating shaft 420 is located in the aforementioned first mating position P1, and state S2 is the state when the aforementioned mating shaft 420 is located in the aforementioned second mating position P2; based on Figure 3 From the perspective shown, during the aforementioned transformation process, the aforementioned transmission rod 410 rotates clockwise around the first axis OO, and the aforementioned mating shaft 420 rotates counterclockwise around the aforementioned second axis PP. The first mating wall A1 of the aforementioned first groove segment 4101a abuts against the aforementioned mating shaft 420 to transmit power between the transmission rod 410 and the mating shaft 420. It is not difficult to see that, based on the aforementioned arrangement of the mating groove 4101, the first mating wall A1 and the aforementioned mating shaft 420 can generate a force with a small pressure angle, thereby ensuring the power transmission efficiency between the transmission rod 410 and the transmission shaft. Conversely, when the aforementioned transmission rod 410 and the aforementioned mating shaft 420 change from state S2 to state S1 during the transmission process, the aforementioned transmission rod 410 will rotate counterclockwise around the first axis OO, and the aforementioned mating shaft 420 will rotate clockwise around the aforementioned second axis PP. The second mating wall A2 of the aforementioned first groove segment 4101a abuts against the aforementioned mating shaft 420 to transmit power between the transmission rod 410 and the mating shaft 420, and can generate a force with a small pressure angle between it and the aforementioned mating shaft 420, thereby ensuring the power transmission efficiency between the transmission rod 410 and the transmission shaft.

[0079] It is understood that, in practical applications, the rotational stroke of the cover portion 300 between the aforementioned locked position and the aforementioned unlocked position can be matched with the movement stroke of the aforementioned mating shaft 420 within the aforementioned first groove 4101a. That is, the rotational stroke of the cover portion 300 between the aforementioned locked position and the aforementioned unlocked position can correspond to at least a portion of the movement stroke of the aforementioned mating shaft 420 within the aforementioned first groove 4101a, or at least a portion of the rotational stroke of the cover portion 300 between the aforementioned locked position and the aforementioned unlocked position can correspond to the movement stroke of the aforementioned mating shaft 420 within the aforementioned first groove 4101a.

[0080] like Figure 7 As shown, it can be understood that in practical applications, the connection between the aforementioned transmission rod 410 and the aforementioned mating shaft 420 as driven components and the aforementioned cover portion 300 can be, but is not limited to, a transmission connection or a fixed connection. Accordingly, when the connection between the aforementioned transmission rod 410 and the aforementioned mating shaft 420 as driven components and the aforementioned cover portion 300 is a transmission connection, the aforementioned transmission may also include at least one second transmission component. When the connection between the aforementioned transmission rod 410 and the aforementioned mating shaft 420 as driven components and the aforementioned cover portion 300 is a fixed connection, the aforementioned driven component can be directly or indirectly fixedly connected to the aforementioned cover portion 300, or be an integral structure with the aforementioned cover portion 300.

[0081] For example, the aforementioned mating shaft 420 is fixedly disposed on the aforementioned cover portion 300 and there is a gap between it and the rotation axis of the aforementioned cover portion 300. The aforementioned transmission shaft is rotatably disposed on the aforementioned housing portion 100. Thus, the aforementioned second axis PP can maintain a high degree of consistency with the rotation axis of the aforementioned cover portion 300, and the aforementioned mating shaft 420 can rotate synchronously with the aforementioned cover portion 300. This is beneficial to further reduce the transmission loss between the transmission portion 400 and the cover portion 300 and improve the driving efficiency of the cover portion 300.

[0082] like Figure 5 As shown, in some feasible examples, when the aforementioned mating shaft 420 is located at the aforementioned first mating position P1, the aforementioned first reference line R1 passes through the aforementioned mating shaft 420. Based on the aforementioned arrangement, during the process of the mating shaft 420 moving within the aforementioned mating groove 4101, the rotation angle range of the mating shaft 420 around the aforementioned second axis PP can be located in the vicinity of the aforementioned first reference line R1, which helps to reduce the space requirement of the mating shaft 420 for movement, thereby improving the structural compactness of the pot lid assembly.

[0083] like Figure 7As shown, in some feasible examples, the aforementioned lid assembly can also be rotatably mounted on the housing portion 100 with a hanging shaft 500 connected to the aforementioned lid portion 300, so that the lid portion 300 can form a rotatable connection with the aforementioned housing portion 100 through the aforementioned hanging shaft 500.

[0084] In some examples, the aforementioned cover portion 300 is rotatable between a locked position and an unlocked position. When the aforementioned cover portion 300 is in the aforementioned locked position, the aforementioned cover portion 300 is adapted to lock into the pot body assembly. When the aforementioned cover portion 300 is in the aforementioned unlocked position, the locking engagement between the aforementioned cover portion 300 and the pot body assembly is released. When the aforementioned mating shaft 420 is in the aforementioned second mating position P2, the aforementioned cover portion 300 is in one of the aforementioned locked position and the aforementioned unlocked position.

[0085] In this technical solution, the state of the aforementioned mating shaft 420 when it is in the aforementioned second mating position P2 can be matched with the state of the aforementioned cover portion 300 when it is in the aforementioned locked position or the aforementioned unlocked position. That is, when the aforementioned mating shaft 420 is in the aforementioned second mating position P2, the aforementioned transmission rod 410 can be correspondingly set to be in either the aforementioned locked position or the aforementioned unlocked position. Based on the aforementioned setting, when the state of the aforementioned mating shaft 420 when it is in the aforementioned second mating position P2 is matched with the state of the aforementioned cover portion 300 when it is in the aforementioned locked position, combined with the aforementioned setting of the first groove segment 4101a, the mating shaft 420 can be subjected to a force with a small pressure angle provided by the groove wall of the first groove segment 4101a or can apply a force with a small pressure angle to the groove wall of the first groove segment 4101a in the second mating position P2. This can reduce the difficulty of starting the cover portion 300 when it is stationary in the aforementioned locked position and improve the efficiency of starting the cover portion 300 in the locked position. This helps to further reduce the wear of the transmission part 400 and the lid part 300 during movement, extend the service life of the pot lid assembly, and reduce the noise and vibration of the pot lid assembly when the lid part 300 is started. Similarly, when the state of the aforementioned mating shaft 420 in the aforementioned second mating position P2 matches the state of the aforementioned lid part 300 in the aforementioned unlocked position, combined with the aforementioned setting of the first groove section 4101a, the mating shaft 420 can be subjected to a small pressure angle force provided by the groove wall of the first groove section 4101a or apply a small pressure angle force to the groove wall of the first groove section 4101a in the second mating position P2. This can reduce the difficulty of starting the lid part 300 when it is stationary in the aforementioned unlocked position, improve the efficiency of starting the lid part 300 in the unlocked position, and further reduce the wear of the transmission part 400 and the lid part 300 during movement, extend the service life of the pot lid assembly, and reduce the noise and vibration of the pot lid assembly when the lid part 300 is started.

[0086] It is understood that in this technical solution, the other of the aforementioned locking position and the aforementioned unlocking position can be matched with the aforementioned first mating position P1 or with other positions of the mating groove 4101, without further limitations.

[0087] In some examples, when the aforementioned mating shaft 420 is located in the aforementioned first mating position P1, the aforementioned cover portion 300 is located in the other of the aforementioned locking position and the aforementioned unlocking position.

[0088] In this technical solution, the states of the aforementioned mating shaft 420 when it is in the aforementioned first mating position P1 and the states of it when it is in the aforementioned second mating position P2 can be matched with the states of the aforementioned cover portion 300 when it is in the aforementioned locked position and the aforementioned unlocked position, respectively. That is, when the aforementioned mating shaft 420 is in the aforementioned first mating position P1, the aforementioned transmission rod 410 can be set to be in one of the aforementioned locked position and the aforementioned unlocked position, and when the aforementioned mating shaft 420 is in the aforementioned second mating position P2, the aforementioned transmission rod 410 can be set to be in the other of the aforementioned locked position and the aforementioned unlocked position.

[0089] Based on the aforementioned configuration, when the state of the mating shaft 420 in the first mating position P1 matches the state of the cover portion 300 in the locked position, combined with the aforementioned configuration of the first groove segment 4101a, the mating shaft 420 can receive a force with a small pressure angle from the groove wall of the first groove segment 4101a or apply a force with a small pressure angle to the groove wall of the first groove segment 4101a in the first mating position P1. This reduces the difficulty of starting the cover portion 300 when it is stationary in the locked position, improves the efficiency of starting the cover portion 300 in the locked position, further reduces the wear of the transmission part 400 and the cover portion 300 during movement, extends the service life of the pot lid assembly, and reduces the noise of the pot lid assembly when the cover portion 300 is started. Vibration; Similarly, when the aforementioned mating shaft 420 is in the aforementioned first mating position P1, matching the aforementioned lid part 300 in the aforementioned unlocking position, combined with the aforementioned arrangement of the first groove segment 4101a, the mating shaft 420 can be subjected to a small pressure angle force provided by the groove wall of the first groove segment 4101a or apply a small pressure angle force to the groove wall of the first groove segment 4101a at the first mating position P1. This can reduce the difficulty of starting the lid part 300 when it is stationary in the aforementioned unlocking position, improve the efficiency of starting the lid part 300 in the unlocking position, further reduce the wear of the transmission part 400 and the lid part 300 during the movement, extend the service life of the pot lid assembly, and reduce the noise and vibration of the pot lid assembly when the lid part 300 is started.

[0090] like Figures 6 to 17As shown, in some examples, the aforementioned mating groove 4101 also has a third mating position P3 and a fourth mating position P4. The third mating position P3 is located between the aforementioned fourth mating position P4 and the aforementioned first axis OO. The aforementioned mating groove 4101 includes a second groove segment 4101b located between the aforementioned third mating position P3 and the aforementioned fourth mating position P4. One end of the aforementioned second groove segment 4101b near the aforementioned third mating position P3 is connected to one end of the aforementioned first groove segment 4101a near the aforementioned first mating position P1, so that the aforementioned mating shaft 420 can move between the aforementioned second mating position P2 and the aforementioned fourth mating position P4. The position of the aforementioned cover portion 300 in the rotational direction and the position of the aforementioned transmission rod 410 in the rotational direction both change with the position of the aforementioned mating shaft 420 in the aforementioned second groove segment 4101b. In the case where the aforementioned mating shaft 420 is located in the aforementioned fourth mating position P4, the aforementioned cover portion 300 is located in the other of the aforementioned locked position and the aforementioned unlocked position.

[0091] In this technical solution, the aforementioned mating groove 4101 may further include the aforementioned second groove segment 4101b. Correspondingly, the aforementioned mating shaft 420 may also move within the second groove segment 4101b. When the positions of the mating shaft 420 and the second groove segment 4101b change, the positions of the aforementioned cover portion 300 and the aforementioned transmission rod 410 in the rotation direction will also change. That is, the transmission rod 410 can perform transmission mating with the mating shaft 420 through the second groove segment 4101b. Since the first groove segment 4101a and the second groove segment 4101b are interconnected, the mating shaft 420 can switch between the first groove segment 4101a and the second groove segment 4101b through the connection between the first groove segment 4101a and the second groove segment 4101b. Meanwhile, when the aforementioned mating shaft 420 is located in the aforementioned second mating position P2, the aforementioned cover part 300 can be positioned in one of the aforementioned locking position and the aforementioned unlocking position. When the aforementioned mating shaft 420 is located in the aforementioned fourth mating position P4, the aforementioned cover part 300 can be positioned in the other of the aforementioned locking position and the aforementioned unlocking position. This can reduce the difficulty of starting the cover part 300 when it is stationary in the aforementioned locking position or the aforementioned unlocking position, improve the efficiency of starting the cover part 300 in the unlocking position, further reduce the wear of the transmission part 400 and the cover part 300 during the movement, extend the service life of the pot lid assembly, and reduce the noise and vibration of the pot lid assembly when the cover part 300 is started.

[0092] It is understood that, based on the aforementioned configuration, the portion of the mating groove 4101 between the aforementioned second mating position P2 and the aforementioned fourth mating position P4 can have a bending area. Thus, given a fixed extension length between the second mating position P2 and the fourth mating position P4, it is also beneficial to reduce the length occupied by the mating groove 4101 in the radial direction of the aforementioned first axis OO, thereby reducing the length requirement for the transmission rod 410 and further improving the structural compactness and miniaturization level of the pot lid assembly.

[0093] It is understood that there is a gap between the groove wall of the aforementioned mating groove 4101 and the aforementioned first axis OO, and there is a gap between the aforementioned mating shaft 420 and the aforementioned second axis PP; therefore, when the aforementioned transmission rod 410 is the driving component relative to the aforementioned mating shaft 420, that is, when the aforementioned mating shaft 420 is located between the aforementioned transmission rod 410 and the aforementioned cover portion 300 in the transmission chain, the aforementioned transmission rod 410 can generate rotation about the aforementioned first axis OO under the action of power. Based on the gap between the aforementioned mating shaft 420 and the aforementioned second axis PP, the groove wall of the aforementioned mating groove 4101 applies force to the aforementioned mating shaft 420. The force exerted can generate a torque that drives the mating shaft 420 to rotate around the aforementioned second axis PP. When the mating shaft 420 is the driving component relative to the aforementioned transmission rod 410, that is, when the aforementioned transmission rod 410 is located between the mating shaft 420 and the aforementioned cover portion 300 in the transmission chain, the mating shaft 420 can rotate around the aforementioned second axis PP under the action of power. Based on the distance between the groove wall of the aforementioned mating groove 4101 and the aforementioned first axis OO, the force exerted by the mating shaft 420 on the groove wall of the aforementioned mating groove 4101 can generate a torque that drives the transmission rod 410 to rotate around the aforementioned second axis PP. Accordingly, during the rotation of the mating shaft 420 around the aforementioned second axis PP, the radial position of the mating shaft 420 in relation to the aforementioned first axis OO will change, that is, the mating shaft 420 will move closer to or further away from the second axis PP during the rotation around the aforementioned second axis PP. It is understandable that, based on the aforementioned configuration of the second groove segment 4101b, during the movement of the aforementioned mating shaft 420 along the aforementioned second groove segment 4101b, the groove wall of the aforementioned second groove segment 4101b can contact the aforementioned mating shaft 420 to facilitate power transmission, and the mating shaft 420 will simultaneously rotate around the aforementioned second axis PP. The circumferential angle between the mating shaft 420 and the aforementioned first reference line R1 on the aforementioned second axis PP is positively correlated with the distance between the mating shaft 420 and the aforementioned third mating position P3. That is, the closer the mating shaft 420 is to the aforementioned third mating position P3 in the second groove segment 4101b, the closer the mating shaft 420 is to the aforementioned first reference line R1 on the aforementioned second axis PP; conversely, the closer the mating shaft 420 is to the aforementioned fourth mating position P4 in the first groove segment 4101a, the farther the mating shaft 420 is from the aforementioned first reference line R1 on the aforementioned second axis PP. Thus, during the movement of the aforementioned mating shaft 420 along the aforementioned second groove segment 4101b, it can rotate within a certain angle range in the circumferential direction of the second axis PP. Based on the transmission relationship between the mating shaft 420 and the transmission rod 410, the transmission rod 410 can also rotate within a certain angle range in the circumferential direction of the first axis OO.

[0094] It is understandable that, based on the aforementioned configuration of this technical solution, when the mating shaft 420 intersects with the aforementioned first reference line R1 during the movement, it will be located between the aforementioned first mating position P1 and the aforementioned third mating position P3 in the mating groove 4101. Correspondingly, the aforementioned second mating position P2 and the aforementioned fourth mating position P4 will have a certain interval angle in the circumferential direction of the aforementioned first axis OO, and the aforementioned mating shaft 420 can rotate around the aforementioned first axis OO within a certain angle range on both sides of the aforementioned first reference line R1.

[0095] like Figure 14 As shown, in some examples, when the aforementioned mating shaft 420 is located at the aforementioned fourth mating position P4, the line connecting the axis of the aforementioned mating shaft 420 and the aforementioned first axis OO is the third reference line R3. When the aforementioned mating shaft 420 is located at the aforementioned fourth mating position P4, the center line C2 of the aforementioned second groove segment 4101b is located on the side of the aforementioned third reference line R3 away from the aforementioned first reference line R1, and the center line C2 of the aforementioned second groove segment 4101b is a convex curve in the direction away from the aforementioned first reference line R1.

[0096] In this technical solution, if the line connecting the axis of the aforementioned mating shaft 420 and the aforementioned first axis OO is taken as the third reference line R3 when the aforementioned mating shaft 420 is located in the aforementioned fourth mating position P4, then when the aforementioned mating shaft 420 is located in the aforementioned fourth mating position P4, the center line C2 of the aforementioned second groove segment 4101b is set to be located on the side of the aforementioned third reference line R3 away from the aforementioned first reference line R1, and the center line C2 of the aforementioned second groove segment 4101b is set to be a convex curve that protrudes in a direction away from the aforementioned first reference line R1, thereby constraining the aforementioned second groove segment 4101b and its groove. The shape and extension of the wall facilitate the generation of a small pressure angle between the groove wall of the second groove 4101b and the mating shaft 420 during the movement of the mating shaft 420 within the second groove 4101b. This ensures and improves the power transmission efficiency between the transmission rod 410 and the mating shaft 420, reduces wear on the transmission rod 410 and the mating shaft 420, extends the service life of the transmission part 400, improves the convenience of locking and unlocking the cover part 300 and the driving efficiency of the cover part 300, and reduces noise and vibration of the transmission part 400 during use, thereby improving the user experience of the product.

[0097] It is understood that the centerline C2 of the aforementioned second groove segment 4101b refers to the median line of the aforementioned second groove segment 4101b in the groove width direction. Correspondingly, the extension direction of the centerline C2 of the aforementioned second groove segment 4101b can be used to characterize the extension direction of the aforementioned second groove segment 4101b. The groove wall of the second groove segment 4101b may include a third mating wall A3 and a fourth mating wall A4 arranged opposite to each other in the groove width direction. When the aforementioned mating shaft 420 moves within the aforementioned second groove segment 4101b, the mating shaft 420 is located between the aforementioned third mating wall A3 and the aforementioned fourth mating wall A4, and at least one of the aforementioned third mating wall A3 and the aforementioned fourth mating wall A4 abuts against the aforementioned mating shaft 420, so as to facilitate power transmission between the transmission rod 410 and the mating shaft 420, and based on the aforementioned third... The constraint of the centerline C2 of the second groove segment 4101b, when the aforementioned mating shaft 420 is located at the aforementioned fourth mating position P4, means that at least a portion of the aforementioned third mating wall A3 and at least a portion of the aforementioned fourth mating wall A4 are located on the side of the aforementioned third reference line R3 away from the aforementioned first reference line R1, and both extend along a convex curve protruding away from the aforementioned first reference line R1; the groove width of the aforementioned second groove segment 4101b can be uniformly distributed in the extension direction of the centerline C2 of the aforementioned second groove segment 4101b, thereby further improving the consistency of the extension shape of the aforementioned third mating wall A3, the aforementioned fourth mating wall A4 and the aforementioned centerline C2 of the aforementioned second groove segment 4101b, which is beneficial to further ensure that a force with a small pressure angle is generated between the aforementioned mating wall and the mating shaft 420 during transmission. For example, when the aforementioned mating shaft 420 is located at the aforementioned second mating position P2, the aforementioned third mating wall A3 is located between the aforementioned fourth mating wall A4 and the aforementioned first reference line R1.

[0098] like Figures 9 to 16 As shown, Figure 9 and Figure 13 The states of the mating shaft 420 when it is in the second mating position P2 and the fourth mating position P4 are shown respectively. Figures 9 to 13 The diagram shows the states of the mating shaft 420 when it is in a certain position during its movement from the second mating position P2 to the fourth mating position P4. Figures 14 to 17 The diagrams show the states of the mating shaft 420 when it is in a certain position during its movement from the fourth mating position P4 to the second mating position P2. Based on... Figures 9 to 13From the shown perspective, during the movement of the aforementioned mating shaft 420 from the second mating position P2 to the first mating position P1 within the first groove segment 4101a, the aforementioned transmission rod 410 rotates counterclockwise around the first axis OO, and the aforementioned mating shaft 420 rotates clockwise around the aforementioned second axis PP. The second mating wall A2 of the aforementioned first groove segment 4101a abuts against the aforementioned mating shaft 420 to transmit power between the transmission rod 410 and the mating shaft 420. It is not difficult to see that, based on the aforementioned arrangement of the mating groove 4101, a force with a small pressure angle can be generated between the second mating wall A2 and the aforementioned mating shaft 420, thereby ensuring the efficiency of power transmission between the transmission rod 410 and the transmission shaft. During the movement of the aforementioned mating shaft 420 from the third mating position P3 to the fourth mating position P4 within the second groove 4101b, the aforementioned transmission rod 410 continues to rotate counterclockwise around the first axis OO, and the aforementioned mating shaft 420 continues to rotate clockwise around the aforementioned second axis PP. The third mating wall A3 of the aforementioned second groove 4101b abuts against the aforementioned mating shaft 420 to transmit power between the transmission rod 410 and the mating shaft 420. It is not difficult to see that, based on the aforementioned arrangement of the mating groove 4101, a force with a small pressure angle can be generated between the third mating wall A3 and the aforementioned mating shaft 420, thereby ensuring the efficiency of power transmission between the transmission rod 410 and the transmission shaft. Figures 14 to 17 From the shown perspective, during the movement of the aforementioned mating shaft 420 from the fourth mating position P4 to the third mating position P3 within the second groove 4101b, the aforementioned transmission rod 410 rotates clockwise around the first axis OO, and the aforementioned mating shaft 420 rotates counterclockwise around the aforementioned second axis PP. The fourth mating wall A4 of the aforementioned second groove 4101b abuts against the aforementioned mating shaft 420 to transmit power between the transmission rod 410 and the mating shaft 420. It is not difficult to see that, based on the aforementioned arrangement of the mating groove 4101, a force with a small pressure angle can be generated between the fourth mating wall A4 and the aforementioned mating shaft 420, thereby ensuring the efficiency of power transmission between the transmission rod 410 and the transmission shaft. During the movement of the aforementioned mating shaft 420 from the first mating position P1 to the second mating position P2 within the first groove 4101a, the aforementioned transmission rod 410 will continue to rotate clockwise around the first axis OO, and the aforementioned mating shaft 420 will continue to rotate counterclockwise around the aforementioned second axis PP. The first mating wall A1 of the aforementioned first groove 4101a abuts against the aforementioned mating shaft 420 to transmit power between the transmission rod 410 and the mating shaft 420. It is not difficult to see that, based on the aforementioned arrangement of the mating groove 4101, the first mating wall A1 and the aforementioned mating shaft 420 can generate a force with a small pressure angle, thereby ensuring the power transmission efficiency between the transmission rod 410 and the transmission shaft.

[0099] like Figures 9 to 17As shown, in some examples, the aforementioned mating groove 4101 further includes a transition groove 4101c communicating between the aforementioned first groove segment 4101a and the aforementioned second groove segment 4101b; and / or a smooth transition between the aforementioned first groove segment 4101a and the aforementioned second groove segment 4101b.

[0100] In this technical solution, the aforementioned mating groove 4101 may further include the aforementioned transition groove section 4101c. On the one hand, the aforementioned first groove section 4101a and the aforementioned second groove section 4101b can be connected through the aforementioned transition groove section 4101c, which is beneficial for a smooth transition between groove sections when the mating shaft 420 moves between the first groove section 4101a and the second groove section 4101b, further reducing the operating noise and vibration of the transmission part 400. On the other hand, during the processing of the aforementioned transmission rod 410, the aforementioned transition groove section 4101c can be used to provide space for processing the end of the aforementioned first groove section 4101a near the aforementioned first mating position P1 and the end of the aforementioned second groove section 4101b near the aforementioned third mating position P3, which is beneficial for improving the processing convenience and processing accuracy of the first groove section 4101a and the second groove section 4101b.

[0101] In this technical solution, a smooth transition can be set between the aforementioned first groove segment 4101a and the aforementioned second groove segment 4101b, which is beneficial for a smooth transition between groove segments when the mating shaft 420 moves between the first groove segment 4101a and the second groove segment 4101b, further reducing the operating noise and vibration of the transmission part 400.

[0102] It is understood that while providing a smooth transition between the aforementioned first groove segment 4101a and the aforementioned second groove segment 4101b, the aforementioned transition groove segment 4101c can be provided. Accordingly, the groove wall of the aforementioned transition groove segment 4101c can smoothly transition with the groove wall of the aforementioned first groove segment 4101a and the groove wall of the aforementioned second groove segment 4101b.

[0103] It is understandable that when the aforementioned mating shaft 420 moves within the aforementioned transition groove 4101c, the position of the aforementioned cover portion 300 in the rotation direction can change with the movement of the mating shaft 420, or it can remain unchanged. The specific position can be set according to actual needs, and no further restrictions are imposed here.

[0104] In some examples, the aforementioned mating groove 4101 further includes a first extended groove segment, which communicates with one end of the aforementioned first groove segment 4101a near the aforementioned second mating position P2; and / or

[0105] The aforementioned mating groove 4101 also includes a second extension groove section, which is connected to one end of the aforementioned second groove section 4101b near the aforementioned fourth mating position P4.

[0106] In this technical solution, the aforementioned mating groove 4101 may also include the aforementioned first extended groove segment, so that during the processing of the aforementioned transmission rod 410, the aforementioned first extended groove segment can be used to provide space for processing the end of the aforementioned first groove segment 4101a near the aforementioned second mating position P2, which is beneficial to improving the processing convenience and processing accuracy of the first groove segment 4101a.

[0107] In this technical solution, the aforementioned mating groove 4101 may also include the aforementioned second extended groove segment, so that during the processing of the aforementioned transmission rod 410, the aforementioned second extended groove segment can be used to provide space for processing the end of the aforementioned second groove segment 4101b near the aforementioned fourth mating position P4, which is beneficial to improving the processing convenience and processing accuracy of the second groove segment 4101b.

[0108] It is understood that the mating groove 4101 may include both the aforementioned first extended groove segment and the aforementioned second extended groove segment.

[0109] It is understood that when the aforementioned mating shaft 420 moves within the aforementioned first extension groove and / or the aforementioned second extension groove, the position of the aforementioned cover portion 300 in the rotation direction may change with the movement of the mating shaft 420, or it may remain unchanged. The specific position can be set according to actual needs, and no further limitations are made here.

[0110] like Figure 17 and Figure 18 As shown, in some examples, the aforementioned mating groove 4101 further includes a third extension groove segment 4101d, which is connected to one end of the aforementioned first groove segment 4101a near the aforementioned first mating position P1.

[0111] In this technical solution, the aforementioned mating groove 4101 may also include the aforementioned third extended groove segment 4101d, so that during the processing of the aforementioned transmission rod 410, the aforementioned third extended groove segment 4101d can be used to provide space for processing the end of the aforementioned first groove segment 4101a near the aforementioned first mating position P1, which is beneficial to improving the processing convenience and processing accuracy of the first groove segment 4101a.

[0112] It is understandable that when the aforementioned mating shaft 420 moves within the aforementioned third extension groove 4101d, the position of the aforementioned cover portion 300 in the rotation direction can change with the movement of the mating shaft 420, or it can remain unchanged. The specific position can be set according to actual needs, and no further restrictions are imposed here.

[0113] In some examples, a drive unit 200 is disposed in the housing portion 100, and a transmission unit 400 is drively connected between the drive unit 200 and the cover portion 300.

[0114] In this technical solution, the pot lid assembly may also include the aforementioned drive unit 200. It is understood that the aforementioned drive unit 200 can apply power to the aforementioned transmission unit 400 to drive the transmission unit 400 to move, thereby driving the lid body 300 to rotate through the transmission unit 400, which is beneficial to improving the ease of use of the pot lid assembly.

[0115] It is understood that the aforementioned drive unit 200 may include a drive member capable of actively outputting power during operation. For example, the aforementioned drive member may be, but is not limited to, an electric drive member. The aforementioned drive member is connected to the aforementioned transmission unit 400 to drive the transmission unit 400 to move, thereby driving the cover unit 300 to rotate through the transmission unit 400. For example, the aforementioned drive member may include a drive motor. Accordingly, the aforementioned drive member may be fixedly disposed on the aforementioned housing unit 100.

[0116] It is understood that the aforementioned drive unit 200 may include an operating member, which is tractively connected to the aforementioned transmission unit and is adapted to receive an externally applied force and transmit the force to the aforementioned transmission unit 400 so as to drive the transmission unit 400 to move when the aforementioned force is received, thereby driving the cover unit 300 to rotate through the transmission unit 400; correspondingly, the aforementioned drive member may be movably disposed on the aforementioned housing unit 100.

[0117] like Figure 19As shown, taking the aforementioned drive unit including the aforementioned operating member as an example, it can be understood that the connection relationship between the aforementioned transmission rod 410 and the aforementioned mating shaft 420, which are active components, and the aforementioned operating member can be, but is not limited to, a transmission connection or a fixed connection. For example, when the connection relationship between the aforementioned transmission rod 410 and the aforementioned mating shaft 420, which are active components, and the aforementioned operating member is a transmission connection, the aforementioned transmission unit 400 may further include at least one first transmission member 430. The first transmission member 430 is transmissionally connected between the aforementioned operating member and the aforementioned active component, thereby reducing the restriction on the movement form of the operating member and improving the design flexibility of the operating member. The transmission form of the aforementioned first transmission member 430 can be, but is not limited to, gear transmission, linkage transmission, or belt transmission, etc., and can be specifically set according to actual needs. This will not be discussed here. Without imposing too many restrictions; when the connection between the aforementioned transmission rod 410 and the aforementioned mating shaft 420, which are the driving components, and the aforementioned operating component is a fixed connection, the aforementioned driving component can be directly or indirectly fixedly connected to the aforementioned operating component, or it can be an integral structure with the aforementioned operating component. This can reduce the number of components in the transmission part 400 and improve the power transmission efficiency between the operating component and the cover part 300. The specific fixed connection method between the aforementioned transmission rod 410 and the aforementioned mating shaft 420, which are the driving components, and the aforementioned operating component can be set according to actual needs, and is not subject to too many restrictions here.

[0118] In some examples, the aforementioned mating shaft 420 is connected between the aforementioned drive unit 200 and the aforementioned transmission rod 410; or the aforementioned mating shaft 420 is connected between the aforementioned cover unit 300 and the aforementioned transmission rod 410.

[0119] In this technical solution, such as Figures 3 to 18 As shown, the aforementioned mating shaft 420 can be connected between the aforementioned driving unit 200 and the aforementioned transmission rod 410. That is, the aforementioned mating shaft 420 can be the driving component relative to the aforementioned transmission rod 410. Accordingly, the aforementioned mating shaft 420 and the aforementioned driving unit 200 can be, but are not limited to, a transmission connection or a fixed connection. Alternatively, the aforementioned mating shaft 420 can be connected between the aforementioned cover portion 300 and the aforementioned transmission rod 410. That is, the aforementioned mating shaft 420 can be the driven component relative to the aforementioned transmission rod 410. Accordingly, the aforementioned mating shaft 420 and the aforementioned cover portion 300 can be, but are not limited to, a transmission connection or a fixed connection.

[0120] In some feasible examples, the aforementioned transmission part 400 can be two, one of which has a mating shaft 420 connected between the aforementioned drive part 200 and the corresponding transmission rod 410, and the mating shaft 420 is fixedly connected to the aforementioned drive part 200; the other transmission part 400 has a mating shaft 420 connected between the aforementioned cover part 300 and the corresponding transmission rod 410, and the mating shaft 420 is fixedly connected to the aforementioned cover part 300. For example... Figure 19 As shown, in some feasible examples, the arrangement of the mating shaft 420, which is fixedly connected to the aforementioned drive unit 200 and is adapted to rotate relative to the housing unit 100 about the second axis, can be replaced by an arrangement adapted to translate relative to the aforementioned housing unit 100 along a preset direction. The orthographic projection of the aforementioned preset direction in a projection plane perpendicular to the aforementioned first axis OO is separate from the orthographic projection of the aforementioned first axis OO. Accordingly, a perpendicular line can be drawn through the orthographic projection of the aforementioned first axis OO to the orthographic projection of the aforementioned preset direction, and this perpendicular line can be used as a fourth reference line. At the same time, the line connecting the axis of the aforementioned mating shaft 420 and the aforementioned first axis OO when the aforementioned mating shaft 420 is located in the aforementioned second mating position P2 can be used as a fifth reference line. Based on this, when the aforementioned mating shaft 420 is located at the aforementioned second mating position P2, the center line C1 of the aforementioned first groove segment 4101a can be set to be located on the side of the aforementioned fifth reference line away from the aforementioned fourth reference line, and the center line C1 of the aforementioned first groove segment 4101a can be set to be a convex curve that protrudes in a direction away from the aforementioned first reference line R1; thereby, the power transmission efficiency between the transmission rod 410 and the mating shaft 420 can be improved, the wear of the transmission rod 410 and the mating shaft 420 can be reduced, the service life of the transmission part 400 can be extended, the convenience of locking and unlocking operations can be improved, and the noise and vibration of the transmission part 400 during use can be reduced, thus improving the user experience of the product.

[0121] According to a second aspect of the present disclosure, a pressure cooking appliance is provided, comprising: a lid assembly as described in any of the preceding first aspects.

[0122] Since the pressure cooking appliance provided in this disclosure includes a lid assembly as described in any of the first aspects above, it possesses all the beneficial effects of such a lid assembly, which will not be elaborated here.

[0123] In this disclosure, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise expressly defined. The terms "install," "connect," "link," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "link" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0124] In the description of this disclosure, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or unit 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 disclosure.

[0125] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this disclosure. 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.

[0126] The above are merely preferred embodiments of this disclosure and are not intended to limit this disclosure. Various modifications and variations can be made to this disclosure by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A pot lid assembly, characterized in that, include: Shell section; The cover portion is rotatably disposed on the housing portion; A transmission unit is connected to the cover portion. The transmission unit includes a transmission rod and a mating shaft. The transmission rod is adapted to rotate relative to the housing portion about a first axis, and the mating shaft is adapted to rotate relative to the housing portion about a second axis, which is substantially parallel to the first axis. The mating shaft is movably disposed in a mating groove of the transmission rod. The mating groove has a first mating position and a second mating position. The first mating position is located between the second mating position and the first axis. The mating groove includes a first groove segment located between the first mating position and the second mating position. The position of the cover portion in the rotation direction and the position of the transmission rod in the rotation direction both change with the position of the mating shaft in the first groove segment. Wherein, the line connecting the first axis and the second axis is the first reference line, and the line connecting the axis of the mating shaft and the first axis when the mating shaft is in the second mating position is the second reference line; when the mating shaft is in the second mating position, the center line of the first groove segment is located on the side of the second reference line away from the first reference line, and the center line of the first groove segment is a convex curve that bulges away from the first reference line.

2. The pot lid assembly according to claim 1, characterized in that, The lid portion is rotatable between a locked position and an unlocked position. When the lid portion is in the locked position, the lid portion is adapted to lock into the pot assembly. When the lid portion is in the unlocked position, the locking engagement between the lid portion and the pot assembly is released. When the mating shaft is in the second mating position, the cover portion is in one of the locked position and the unlocked position.

3. The pot lid assembly according to claim 2, characterized in that, When the mating shaft is in the first mating position, the cover portion is in the other of the locked position and the unlocked position.

4. The pot lid assembly according to claim 2, characterized in that, The mating groove also has a third mating position and a fourth mating position. The third mating position is located between the fourth mating position and the first axis. The mating groove includes a second groove segment located between the third mating position and the fourth mating position. The end of the second groove segment near the third mating position is connected to the end of the first groove segment near the first mating position, so that the mating shaft can move between the second mating position and the fourth mating position. The position of the cover part in the rotation direction and the position of the transmission rod in the rotation direction both change with the position of the mating shaft in the second groove segment. When the mating shaft is in the fourth mating position, the cover portion is in the other of the locking position and the unlocking position.

5. The pot lid assembly according to claim 4, characterized in that, When the mating shaft is in the fourth mating position, the line connecting the axis of the mating shaft and the first axis is used as the third reference line. When the mating shaft is in the fourth mating position, the center line of the second groove segment is located on the side of the third reference line away from the first reference line, and the center line of the second groove segment is a convex curve in the direction away from the first reference line.

6. The pot lid assembly according to claim 5, characterized in that, The mating groove further includes a transition groove section communicating between the first groove section and the second groove section; and / or The first slot segment and the second slot segment have a smooth transition.

7. The pot lid assembly according to claim 5, characterized in that, The mating groove further includes a first extension groove section, the first extension groove section being connected to one end of the first groove section near the second mating position; and / or The mating groove further includes a second extension groove section, which is connected to one end of the second groove section near the fourth mating position.

8. The pot lid assembly according to any one of claims 1 to 7, characterized in that, The mating groove further includes a third extension groove section, which is connected to one end of the first groove section near the first mating position.

9. The pot lid assembly according to any one of claims 1 to 7, characterized in that, Also includes: A drive unit is disposed in the housing portion, and a transmission unit is tractively connected between the drive unit and the cover portion.

10. The pot lid assembly according to claim 9, characterized in that, The mating shaft is connected between the drive unit and the transmission rod; or the mating shaft is connected between the cover unit and the transmission rod.

11. A pressure cooking appliance, characterized in that, include: The pot lid assembly as described in any one of claims 1 to 9.

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