A pot cover assembly and a pressure cooking appliance

Abstract

The utility model discloses a kind of pot cover assembly and pressure cooking utensil, pot cover assembly includes face cover and the inner cover being set below face cover, face cover is provided with vent hole and mounting hole, mounting hole is provided with identification element, inner cover is fixed with float valve, inner cover can be rotated with locking state and unlocking state relative to face cover, in locking state, float valve and mounting hole are in register, float valve can push identification element and move up, in unlocking state, float valve and vent hole are in register and communicate.In the upper surface of face cover, the position of float valve in the locking state of inner cover is provided with mounting hole, the position of float valve in the unlocking state of inner cover is provided with vent hole, float valve can float and push identification element and float out in face cover, and vent hole and float valve are in register, then, exhaust smoothly, improve exhaust efficiency.So that float valve exhaust function and prompt function can be reliably realized, and realization process does not interfere with each other.

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] The inner lid of a pressure cooker's pot lid can often rotate relative to the pot body to lock or unlock the lid. When the lid is locked to the pot body, pressure can be applied inside the pot for safe pressure cooking. When the lid is unlocked from the pot body, the lid can be opened.

[0003] Meanwhile, the lid is also equipped with a float valve. This float valve rises under the pressure of gas inside the pot. When the float valve falls, the pot can communicate with the outside through it, allowing for venting. When the gas inside the pot increases, pushing the float valve upwards, it seals, isolating the pot from the outside world, allowing for pressure build-up. The upper surface of the lid has an opening corresponding to the float valve, allowing it to move up and down and providing clearance. Therefore, to ensure the opening aligns with the float valve, some pressure cookers have float valves that do not rotate with the inner lid, remaining in their original position.

[0004] Additionally, some pressure cookers have a float valve mounted on the inner lid. When the inner lid rotates, the float valve moves accordingly. The lid also has an opening on its upper surface; when the inner lid is in the locked position, the float valve aligns vertically with the opening. While this design allows for smooth venting through the opening when the lid is locked, when the inner lid is unlocked, the float valve is misaligned with the opening. In the unlocked position, the float valve is often in a downward-facing state, causing airflow from the pot to pass between the inner and outer lids instead of escaping directly through the opening. This results in airflow escaping between the inner and outer lids, potentially contaminating the inside of the lid and posing a risk of malfunction to the internal electrical components due to contact with steam. Utility Model Content

[0005] This invention provides a pot lid assembly and a pressure cooking appliance to solve the problem that the float valve cannot smoothly release air when the pot lid is unlocked due to misalignment between the float valve and the opening on the pot lid surface.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A pot lid assembly includes a top cover and an inner cover disposed below the top cover. The top cover has a vent hole and a mounting hole. An identifier is disposed in the mounting hole. A float valve is fixed in the inner cover. The inner cover can rotate relative to the top cover so that the pot lid assembly has a locked state that is locked with the pot body and an unlocked state that is unlocked from the pot body. In the locked state, the float valve is vertically aligned with the mounting hole and can push the identifier upward. In the unlocked state, the float valve is vertically aligned with the vent hole and connected.

[0008] In this invention, the float valve is fixed to the inner cover so that it can rotate relative to the top cover along with the inner cover. The position of the float valve changes with the rotation of the inner cover. The top cover has a mounting hole corresponding to the position of the float valve when the inner cover is locked, and a vent hole corresponding to the position of the float valve when the inner cover is unlocked. When the inner cover is locked, the float valve aligns vertically with the mounting hole; when the inner cover is unlocked, the float valve aligns vertically with the vent hole. Since the inner cover is locked, indicating that the lid and pot body are locked, pressure cooking can begin. Therefore, when the steam inside the pot increases, causing the pressure to rise, the float valve rises under the pressure of the airflow, pushing the indicator piece upwards and protruding from the top cover. This means the indicator piece is at least partially exposed on the top cover, providing a clear visual indication to the user that the float valve is in the upward position, indicating that the pot is pressurized. When the inner lid is rotated to the unlocked position, the air pressure inside the pot is balanced with the external air pressure, and the float valve is in the lowered position. At this time, the airflow inside the pot can be discharged through the float valve. The vent hole corresponds vertically to the float valve, and there are no other structures inside the vent hole. Therefore, the airflow from the float valve can be directly discharged through the vent hole, achieving smooth venting when the lid assembly is unlocked, thus improving venting efficiency. This ensures that both the venting function and the indicator function of the float valve can be reliably implemented without interference during the process, making the float valve work more stably and reliably.

[0009] The outer periphery of the vent is provided with an air baffle rib protruding towards the inner cover, and the air baffle rib is provided with a clearance opening in the circumferential direction for the float valve to pass through.

[0010] In this design, the baffle rib surrounds the vent hole. When the float valve moves below the vent hole, the baffle rib obstructs the airflow from the float valve, concentrating the airflow within the space enclosed by the baffle rib, i.e., the location of the vent hole. This allows the airflow from the float valve to escape to the outside through the vent hole as much as possible, reducing the amount of air escaping between the inner and outer lids, preventing contamination of the inside of the lid, and protecting the electrical components inside the lid from steam. Furthermore, since the position of the float valve changes with the rotation of the inner lid, the baffle rib has a clearance opening for the float valve to pass through, facilitating its movement below or away from the vent hole without interfering with the baffle rib during movement. This ensures reliable and smooth movement of both the inner lid and the float valve.

[0011] The inner wall of the mounting hole extends vertically to form a mounting channel. The marker has a guide section and a limiting section in the vertical direction. The limiting section is provided with a limiting structure. The inner wall of the mounting channel is provided with a mating structure. The limiting structure can stop with the mating structure in the circumferential direction to limit the rotation of the marker.

[0012] In this design, the guide section engages with the inner wall of the installation channel to guide the movement of the marker, restricting its movement to the vertical direction and allowing it to float only vertically, thus improving the reliability of the movement. The limiting structure of the limiting section engages with the structure of the inner wall of the installation channel to limit the rotation of the marker, preventing it from rotating relative to the faceplate. This makes the contact between the float valve and the marker more stable, thereby reliably driving the marker to float upwards.

[0013] The lower surface of the cover is provided with a downward protruding rib, which forms a slide. When the inner cover rotates, at least part of the movement trajectory of the float valve is located inside the slide. At least one of the mounting hole and the vent hole is located inside the slide.

[0014] In this design, the surrounding ribs form a slide rail, which limits the movement of the float valve, allowing it to move within the slide rail and reciprocate along its extension direction. Simultaneously, it also limits the rotation of the inner cover. When the float valve stops at one end of the slide rail, the inner cover cannot continue to rotate and can only rotate in the opposite direction. When the inner cover rotates to the unlocked state, the float valve is located at one end of the slide rail, corresponding vertically to the vent hole. When the inner cover rotates to the locked state, the float valve is located at the other end of the slide rail, corresponding vertically to the mounting hole.

[0015] The slide is provided with a downward protruding limiting protrusion that extends along the movement direction of the float valve and can abut against the float valve to create a gap between the float valve and the lower surface of the cover.

[0016] In this design, during the movement of the float valve, there may be a situation where there is a lot of steam in the pot, which may push the float valve up. However, the presence of the limiting protrusion ensures that when the float valve rises during movement, it will come into contact with the limiting protrusion and be stopped by the limiting protrusion, preventing it from moving further upward. Consequently, it will not come into contact with the lower surface of the lid, thus maintaining a gap between the float valve and the lower surface of the lid. This gap allows the airflow inside the pot to escape, preventing the float valve from being blocked during movement and thus avoiding an increase in the gas pressure inside the pot.

[0017] The outer periphery of the mounting hole is provided with a limiting rib protruding towards the inner cover. The limiting rib forms a limiting space. The float valve has an upward position and a downward position. In the upward position, at least a part of the float valve is located within the limiting space. In the downward position, the float valve is located outside the limiting space.

[0018] In this design, after the inner lid is rotated to the locked position, the float valve aligns vertically with the mounting hole. When pressure is applied inside the pot, the float valve is pushed up to the upper position, and the pressure inside the pot gradually increases. At this point, the float valve is within the space enclosed by the limiting ribs, preventing it from moving laterally. This also restricts the rotation of the inner lid, preventing the user from rotating it while the float valve is in the upper position. This achieves a safety-controlled opening mechanism under pressure. Only when the pressure inside the pot is released and the float valve falls outside the limiting space does the limiting ribs lose their restriction on the lateral movement of the float valve, at which point the user can rotate the inner lid to unlock it.

[0019] The pot lid assembly also includes an operating handle protruding from the surface of the lid. The operating handle is fixedly connected to the inner lid so as to drive the inner lid to rotate. The inner lid is provided with an exhaust pipe and a counterweight placed at the top of the exhaust pipe. The pot lid assembly is provided with a transmission component, and the operating handle is provided with a driving component. In the unlocked state, the driving component drives the transmission component to move to lift the counterweight.

[0020] In this design, when the user rotates the inner lid to the unlocked position, the drive mechanism on the operating handle lifts the counterweight, allowing the vent pipe to connect the inside of the pot to the outside. The airflow inside the pot can then be expelled through the vent pipe, thus preventing the lid from bursting due to residual heat causing a pressure increase when the lid is opened. Simultaneously, the vent pipe is opened while the user rotates the operating handle to open the lid, eliminating the need for additional operations (such as pressing the vent button). This allows the user to perform multiple functions in one operation, making the operation simpler and more convenient, and improving the user experience.

[0021] The operating handle is provided with a downward protruding mounting boss. The driving component has a fixing part and a driving part. The fixing part is fixed to the mounting boss. The driving part is provided with a driving slope. The height of the driving slope gradually increases from one end of the driving part to the other end. The driving slope is used to cooperate with the transmission component to drive the transmission component to move.

[0022] In this design, the inclined plane causes the driving part to have a height change. When the operating handle is turned, the driving part can contact the transmission component at different heights, causing the transmission component to move in the height direction. This allows an upward pushing force to be applied to the hammer, thus lifting the hammer.

[0023] The transmission component includes a connecting part that is rotatably connected to the pot lid assembly, a force-receiving part located at one end of the connecting part, and an action part located at the other end of the connecting part. The action part is used to lift the counterweight, the driving component acts on the action part, and the lid is provided with an exhaust button that acts on the force-receiving part; or, the pot lid assembly is provided with an electromagnetic component that acts on the force-receiving part.

[0024] In this design, the transmission component is rotatably connected to the lid assembly, forming a lever mechanism. Therefore, by designing the lever arm lengths at both ends of the connection, the driving force of the actuating part on the weight is made easier, reducing the effort required for user operation. The driving component acts on the actuating part, i.e., the part of the transmission component that acts on the weight, allowing the driving component to directly drive the actuating part, resulting in a more direct force and higher transmission efficiency. When the lid has a vent button, manual venting is possible. After pressure cooking, the user can manually press the vent button to activate the lid-opening button on the force-bearing part, causing the actuating part to lift the weight and release air. When the lid has an electromagnetic component, automatic venting is possible. The electromagnetic component can be linked to the cooking program. After pressure cooking, the program controls the electromagnetic component to automatically drive the force-bearing part, causing the actuating part to lift the weight, eliminating the need for manual user operation.

[0025] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned pot lid assembly. The inner lid cooperates with the pot body to form a cooking cavity. One end of the pot lid assembly is rotatably connected to the pot body so that the pot lid assembly can be flipped relative to the pot body to open or close the cooking cavity. Alternatively, the pot lid assembly can be removed from the pot body to open the cooking cavity. Attached Figure Description

[0026] 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:

[0027] Figure 1 This is an exploded view of the structure of a pot lid assembly according to one embodiment of the present invention;

[0028] Figure 2 This is a cross-sectional view of the inner cover according to one embodiment of the present utility model;

[0029] Figure 3 This is a schematic diagram of the structure of the faceplate facing the inner cover in one embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the faceplate facing the inner cover in another embodiment of the present invention;

[0031] Figure 5 This is a top view of the pot lid assembly in an unlocked state according to one embodiment of the present invention;

[0032] Figure 6 for Figure 5 Cross-sectional view of the middle pot lid assembly;

[0033] Figure 7 for Figure 6A magnified view of area A in the middle;

[0034] Figure 8 This is a top view of the pot lid assembly in a locked state according to one embodiment of the present invention;

[0035] Figure 9 for Figure 8 Cross-sectional view of the middle pot lid assembly;

[0036] Figure 10 for Figure 9 A magnified view of area B in the middle;

[0037] Figure 11 This is a schematic diagram of the structure of the identification component according to one embodiment of the present invention;

[0038] Figure 12 This is a schematic diagram of the operating handle according to one embodiment of the present invention;

[0039] Figure 13 This is a schematic diagram of the structure of the drive component according to one embodiment of the present invention;

[0040] Figure 14 This is a cross-sectional view of the pot lid assembly in the locked state according to one embodiment of the present invention.

[0041] Figure 15 This is a cross-sectional view of the pot lid assembly in the unlocked state according to one embodiment of the present invention;

[0042] Figure 16 This is a schematic diagram of the transmission component according to one embodiment of the present invention.

[0043] in:

[0044] 1. Cover; 11. Mounting hole; 12. Vent hole; 13. Exhaust button; 14. Surrounding rib; 15. Slide rail; 16. Limiting protrusion; 17. Air baffle rib; 18. Limiting wall; 181. Limiting opening; 19. Limiting rib;

[0045] 2. Inner cover; 21. Cover teeth; 22. Exhaust pipe; 23. Counterweight;

[0046] 3. Float valve;

[0047] 4. Operating handle; 41. Mounting boss;

[0048] 5. Identification component; 51. Exhaust channel; 52. Exhaust hole; 53. Guide section; 54. Limiting section; 541. Snap-fit ​​part; 542. Elastic rib; 55. Guide protrusion;

[0049] 6. Drive component; 61. Drive unit; 611. Drive ramp; 62. Mounting platform; 63. Support rib; 64. Fixing hole; 65. Positioning hole;

[0050] 7. Pressure plate;

[0051] 8. Transmission components; 81. Connecting parts; 82. Force-receiving parts; 83. Acting parts;

[0052] 9. Top rod. Detailed Implementation

[0053] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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.

[0058] like Figure 1 , Figure 5 , Figure 6 , Figure 8 , Figure 9 As shown, a pot lid assembly includes a top cover 1 and an inner cover 2 disposed below the top cover 1. The top cover 1 is provided with a vent hole 12 and a mounting hole 11. An identifier 5 is disposed in the mounting hole 11. A float valve 3 is fixed in the inner cover 2. The inner cover 2 can rotate relative to the top cover 1 so that the pot lid assembly has a locked state that is locked with the pot body and an unlocked state that is unlocked from the pot body. In the locked state, the float valve 3 is vertically aligned with the mounting hole 11, and the float valve 3 can push the identifier 5 upward. In the unlocked state, the float valve 3 is vertically aligned with the vent hole 12 and is connected.

[0059] It is understandable that, such as Figure 2 As shown, the inner lid 2 is provided with a lid tooth 21, and the pot body is provided with a pot tooth. The inner lid 2 can rotate around its own center so that the lid tooth 21 and the pot tooth are misaligned vertically. At this time, the pot lid assembly is unlocked from the pot body. When the lid tooth 21 and the pot tooth are aligned vertically, they are locked together, forming an upward limit on the pot lid assembly. At this time, the pot lid assembly is locked to the pot body.

[0060] In this invention, the float valve 3 is fixed to the inner cover 2 so that it can rotate with the inner cover 2 relative to the top cover 1, so that the position of the float valve 3 changes with the rotation of the inner cover 2. In this invention, an installation hole 11 is provided on the upper surface of the top cover 1 corresponding to the position of the float valve 3 when the inner cover 2 is locked, and a vent hole 12 is provided corresponding to the position of the float valve 3 when the inner cover 2 is unlocked, so that when the inner cover 2 is rotated to the locked position, the float valve 3 is vertically aligned with the installation hole 11, and when the inner cover 2 is rotated to the unlocked position, the float valve 3 is vertically aligned with the vent hole 12. When the inner lid 2 is in the locked state, it indicates that the lid and the pot body are locked together, allowing for pressure cooking. Therefore, when the steam inside the pot increases, causing the pressure to rise, the float valve 3 rises under the pressure of the airflow, pushing the indicator 5 upwards and causing it to protrude from the upper surface of the lid 1. This means the indicator 5 is at least partially exposed on the lid 1, providing a clear visual indication to the user that the float valve 3 is in the upward position, indicating that the pot is pressurized. When the inner lid 2 is rotated to the unlocked state, the pressure inside the pot is balanced with the external pressure, and the float valve 3 is in the downward position. The airflow inside the pot can then be discharged through the float valve 3. The vent 12 corresponds vertically to the float valve 3 and has no other structures inside, allowing the airflow from the float valve 3 to be directly discharged through the vent 12, achieving smooth venting in the unlocked state of the lid assembly and improving venting efficiency. This ensures that the venting and indication functions of float valve 3 can be reliably implemented without interference between them, making the operation of float valve 3 more stable and reliable.

[0061] It is understandable that the float valve 3 is eccentrically fixed to the inner cover 2, and when the inner cover 2 rotates around its own center, the movement trajectory of the float valve 3 is an arc. Therefore, as... Figure 3 As shown, the mounting holes 11 and vent holes 12 on the cover 1 are also arranged along an arc to adapt to the movement trajectory of the float valve 3.

[0062] Preferably, the indicator 5 can be a bright color such as red, so as to provide a prominent visual cue to the user when it is lifted by the float valve 3.

[0063] Preferably, such as Figure 10 As shown, the label 5 has an exhaust channel 51 inside, and an exhaust hole 52 is provided on the top of the label 5. When the float valve 3 and the label 5 are aligned vertically, the exhaust channel 51 and the channel inside the float valve 3 are connected, so that the airflow in the pot can be smoothly discharged through the float valve 3 and the label 5 in sequence.

[0064] It should be noted that the vertical alignment of the float valve 3 with the mounting hole 11 and the vent hole 12 only indicates the locking state of the lid assembly and the pot body. That is, when the lid assembly is unlocked, the float valve 3 aligns vertically with the vent hole 12. In this state, airflow inside the pot can be discharged through the float valve 3, therefore pressure cannot build up inside the pot, and the float valve 3 will not float upwards. When the lid assembly is locked, the float valve 3 aligns vertically with the mounting hole 11, indicating that the lid is locked and conditions for pressure cooking are met. However, the float valve 3 still does not float upwards at this time. Only when the amount of steam inside the pot increases sufficiently to lift the float valve 3 will it be lifted and switch to the floating position. Similarly, after pressure cooking ends and the pressure inside the pot is released, the float valve 3 falls under the influence of gravity. If the user does not rotate the inner lid 2 to unlock it at this time, the float valve 3 will still remain aligned vertically with the mounting hole 11.

[0065] As a preferred embodiment of this utility model, such as Figure 5 , Figure 6 , Figure 7 As shown, the outer periphery of the vent 12 is provided with an air baffle 17 protruding towards the inner cover 2, and the air baffle 17 is provided with a clearance opening in the circumferential direction for the float valve 3 to pass through.

[0066] The baffle 17 surrounds the vent hole 12. When the float valve 3 moves below the vent hole 12, the baffle 17 blocks the airflow discharged from the float valve 3, concentrating the airflow within the space enclosed by the baffle 17, i.e., the location of the vent hole 12. This allows the airflow discharged from the float valve 3 to be discharged to the outside through the vent hole 12 as much as possible, reducing the amount of air escaping between the inner lid 2 and the top lid 1, preventing contamination of the inside of the lid, and protecting the electrical components inside the lid from steam. Furthermore, since the position of the float valve 3 changes with the rotation of the inner lid 2, the baffle 17 has a clearance opening for the float valve 3 to pass through, facilitating its movement below or away from the vent hole 12 without interfering with the baffle 17 during movement, ensuring reliable and smooth movement of the inner lid 2 and the float valve 3.

[0067] Specifically, the clearance opening is located on the side of the air baffle 17 facing the mounting hole 11.

[0068] Preferably, such as Figure 8 , Figure 9 , Figure 10 As shown, the inner wall of the mounting hole 11 extends vertically to form a mounting channel. The marker 5 has a guide section 53 and a limiting section 54 in the vertical direction. The limiting section 54 is provided with a limiting structure. The inner wall of the mounting channel is provided with a mating structure. The limiting structure can stop with the mating structure in the circumferential direction to limit the rotation of the marker 5.

[0069] The guide section 53 can cooperate with the inner wall of the installation channel to guide the movement of the marker 5, restricting the movement of the marker 5 to the vertical direction, so that it can only float up and down in the vertical direction, thereby improving the reliability of the movement. The limiting structure of the limiting section 54 can cooperate with the fitting structure of the inner wall of the installation channel to limit the rotation of the marker 5, so that the marker 5 cannot rotate relative to the face cover 1, making the contact between the float valve 3 and the marker 5 more stable, and thus reliably driving the marker 5 to float upward.

[0070] Preferably, such as Figure 10 As shown, the inner wall of the mounting hole 11 extends toward the inner cover 2 (extends downward) to form a mounting channel.

[0071] Specifically, in one embodiment, such as Figure 10As shown, the guide section 53 is located above the limiting section 54. The cross-section of the guide section 53 is circular, while the cross-section of the limiting section 54 is non-circular (e.g., triangular, quadrilateral, elliptical, etc.) to form a limiting structure. The inner wall of the installation channel has a limiting wall 18 protruding towards the inside of the installation channel. The limiting wall 18 forms a limiting opening 181. The shape of the limiting opening 181 is adapted to the shape of the limiting section 54 so that the limiting opening 181 forms a mating structure. It can form a stop with the limiting section 54 in the circumferential direction, thereby restricting the rotation of the marker 5. The cross-section of the part of the installation channel above the limiting wall 18 is circular and adapted to the guide section 53.

[0072] Of course, the limiting structure and the mating structure can also be other structures, such as the limiting protrusion 16, the limiting groove, etc., as long as they can stop and limit in the circumferential direction, and no limitation is made here.

[0073] Specifically, such as Figure 11 As shown, the guide section 53 is provided with guide protrusions 55 evenly spaced along its circumference. The guide protrusions 55 can cooperate with the inner wall of the installation channel to guide the movement of the sign 5, and the evenly spaced guide protrusions 55 can ensure that the sign 5 remains centered with the installation channel during the movement.

[0074] Preferably, such as Figure 10 , Figure 11 As shown, the lower end of the marker 5 is provided with a snap-fit ​​portion 541, which can pass through the limiting opening 181 to engage with the limiting wall 18, preventing the marker 5 from falling out of the mounting hole 11. Furthermore, the lower end of the marker 5 has an elastic rib 542, which forms a limiting section 54. The upper end of the elastic rib 542 is fixedly connected to the guide section 53, while the lower end is free. The snap-fit ​​portion 541 is located at the free end, allowing the elastic rib 542 to swing when compressed. This simplifies the engagement between the snap-fit ​​portion 541 and the limiting wall 18, significantly reducing assembly difficulty.

[0075] As a preferred embodiment of this utility model, such as Figure 3 , Figure 4 As shown, the lower surface of the cover 1 is provided with a downwardly protruding rib 14, which forms a slide 15. When the inner cover 2 rotates, at least part of the movement trajectory of the float valve 3 is located inside the slide 15, and at least one of the mounting hole 11 and the vent hole 12 is located inside the slide 15.

[0076] Preferably, such as Figure 4 As shown, the surrounding rib 14 simultaneously surrounds the mounting hole 11 and the vent hole 12. The movement trajectory of the float valve 3 is entirely located inside the slide rail 15, and the mounting hole 11 and the vent hole 12 are located at both ends of the slide rail 15.

[0077] The retaining rib 14 forms a slide rail 15, which limits the movement of the float valve 3, allowing it to reciprocate only within the slide rail 15 along its extension direction. Simultaneously, it also limits the rotation of the inner cover 2. When the float valve 3 is stopped by the retaining rib 14 at one end of the slide rail 15, the inner cover 2 cannot continue to rotate and can only rotate in the opposite direction. When the inner cover 2 is rotated to the unlocked state, the float valve 3 is located at one end of the slide rail 15, corresponding vertically to the vent hole 12. When the inner cover 2 is rotated to the locked state, the float valve 3 is located at the other end of the slide rail 15, corresponding vertically to the mounting hole 11.

[0078] Preferably, such as Figure 3 , Figure 4 As shown, the slide 15 extends in an arc shape. In addition, since the float valve 3 moves within the area enclosed by the ribs 14, even when the float valve 3 is moving, the airflow inside the pot flows out through the float valve 3, and will be confined as much as possible within the area enclosed by the ribs 14, and will eventually be discharged through the vent 12 or the mounting hole 11, instead of quickly dissipating between the inner cover 2 and the top cover 1.

[0079] Of course, such as Figure 3 As shown, the surrounding ribs 14 can also form part of the movement trajectory of the float valve 3, so that a part of the movement of the float valve 3 is inside the slide rail 15, for example, as... Figure 3 As shown, the rib 14 surrounds the vent hole 12, so that the vent hole 12 is located inside the slide 15, while the mounting hole 11 is located outside the rib 14.

[0080] Furthermore, such as Figure 3 , Figure 4 As shown, a downwardly protruding limiting protrusion 16 is provided in the slide 15. The limiting protrusion 16 extends along the movement direction of the float valve 3 and can abut against the float valve 3 so that there is a gap between the float valve 3 and the lower surface of the cover 1.

[0081] During the movement of the float valve 3, there may be a situation where there is a lot of steam in the pot, which may push the float valve 3 up. However, the presence of the limiting protrusion 16 means that when the float valve 3 floats up during the movement, it will come into contact with the limiting protrusion 16. It will be stopped by the limiting protrusion 16 and will not be able to move upward. As a result, it will not come into contact with the lower surface of the cover 1. This ensures that there is always a gap between the float valve 3 and the lower surface of the cover 1. The airflow in the pot can then be discharged through this gap, preventing the float valve 3 from being blocked during the movement and unable to discharge air, which would cause the gas pressure in the pot to rise.

[0082] Preferably, the limiting protrusion 16 can stop the top of the float valve 3, but after the two come into contact, the limiting protrusion 16 will not block the air outlet of the float valve 3, and the airflow inside the pot can still be discharged through the float valve 3.

[0083] Preferably, such as Figure 4As shown, the reinforcing bar 14 surrounds the vent hole 12 and the mounting hole 11, and the limiting protrusion 16 extends from the mounting hole 11 to the vent hole 12.

[0084] Preferably, such as Figure 10 As shown, the outer periphery of the mounting hole 11 is provided with a limiting rib 19 protruding towards the inner cover 2. The limiting rib 19 encloses a limiting space. The float valve 3 has an upward position and a downward position. In the upward position, at least a part of the float valve 3 is located within the limiting space. In the downward position, the float valve 3 is located outside the limiting space.

[0085] After the inner lid 2 is rotated to the locked position, the float valve 3 aligns vertically with the mounting hole 11. Further, as pressure builds up inside the pot, the float valve 3 is pushed up to the floating position. At this time, pressure begins to rise inside the pot. The float valve 3 is then within the space enclosed by the limiting rib 19, preventing it from moving laterally. This also restricts the rotation of the inner lid 2, preventing the user from rotating the inner lid 2 while the float valve 3 is floating. This achieves a restriction on opening the lid under pressure, ensuring safety. Only when the pressure inside the pot is released and the float valve 3 falls outside the limiting space does the limiting rib 19 lose its restriction on the lateral movement of the float valve 3, at which point the user can rotate the inner lid 2 to unlock it.

[0086] After pressure cooking and pressure release, if the user does not open the lid immediately but instead chooses to let the food simmer for a while before opening it, the residual heat inside the pot may cause the pressure to rise again, posing a risk of the lid bursting when the user opens it. Some pressure cookers have a manual pressure release button 13 on the lid, allowing the user to release pressure by pressing the button 13 again before opening the lid. However, this adds an extra step to opening the lid, making it inconvenient for the user.

[0087] In a preferred embodiment of this utility model, such as Figure 1 , Figure 12 , Figure 14 , Figure 15 As shown, the pot lid assembly also includes an operating handle 4 protruding from the surface of the lid 1. The operating handle 4 is fixedly connected to the inner lid 2 so as to drive the inner lid 2 to rotate. The inner lid 2 is provided with an exhaust pipe 22 and a counterweight 23 placed at the top of the exhaust pipe 22. The pot lid assembly is provided with a transmission component 8, and the operating handle 4 is provided with a driving component 6. In the unlocked state, the driving component 6 drives the transmission component 8 to move to lift the counterweight 23.

[0088] Specifically, the exhaust pipe 22 is fixed to the inner cover 2.

[0089] When the user rotates the inner lid 2 to the unlocked position, the drive component 6 on the operating handle 4 lifts the counterweight 23, allowing the vent pipe 22 to connect the inside of the pot to the outside. The airflow inside the pot can then be expelled through the vent pipe 22, thus preventing the lid from bursting due to residual heat causing a pressure increase when the lid is opened. Simultaneously, when the user rotates the operating handle 4 to open the lid, the vent pipe 22 is opened, eliminating the need for additional operations (such as pressing the vent button 13). This allows the user to perform multiple functions in one operation, making operation simpler and more convenient, and improving the user experience.

[0090] It should be noted that this embodiment does not limit the method by which the transmission member 8 drives the weight 23. In one embodiment, the transmission member 8 can directly drive the weight 23, for example, by directly acting on the bottom or side of the weight 23 to lift it. In another embodiment, the transmission member 8 indirectly drives the weight 23, for example, as... Figure 14 , Figure 15 As shown, a portion of the transmission component 8 is located below the hammer 23, and there is a push rod 9 between the transmission component 8 and the hammer 23. The transmission component 8 pushes the push rod 9 upward, so that the push rod 9 acts directly on the hammer 23 to lift the hammer 23.

[0091] Specifically, such as Figure 12 , Figure 13 As shown, the operating handle 4 is provided with a downward protruding mounting boss 41, the driving member 6 has a fixing part and a driving part 61, the fixing part is fixed to the mounting boss 41, the driving part 61 is provided with a driving slope 611, the driving slope 611 gradually increases in height from one end of the driving part 61 to the other end, the driving slope 611 is used to cooperate with the transmission member 8 to drive the transmission member 8 to move.

[0092] The driving ramp 611 causes the driving part 61 to have a height change. When the operating handle 4 is rotated, the driving part 61 can contact the transmission member 8 at different height positions, causing the transmission member 8 to move in the height direction. This allows an upward pushing force to be applied to the hammer 23, causing the hammer 23 to be lifted.

[0093] Specifically, such as Figure 13 As shown, the drive unit 6 has a mounting platform 62, the drive part 61 is vertically disposed on the mounting platform 62, the drive ramp 611 is located at the top of the drive part 61, and the drive part 61 has support ribs 63 on both sides. The support ribs 63 are connected to the mounting platform 62 and the drive part 61 to improve the structural strength of the drive part 61.

[0094] The drive component 6 is also provided with a positioning hole 65 and a fixing hole 64. The positioning hole 65 is used to cooperate with the positioning structure on the operating handle 4 to form an installation positioning for the drive component 6. The fixing hole 64 is used to fix the drive component 6 to the operating handle 4. The fixing hole 64 is located between the positioning hole 65 and the drive part 61.

[0095] like Figure 12 As shown, the mounting boss 41 is also fixed with a pressure plate 7. One end of the pressure plate 7 is fixedly connected to the mounting boss 41, and the other end passes through the limiting slot on the mounting boss 41. The push rod 9 passes through the pressure plate 7.

[0096] In a specific example, such as Figures 14 to 16 As shown, the transmission component 8 includes a connecting part 81 rotatably connected to the pot lid assembly, a force-receiving part 82 located at one end of the connecting part 81, and an action part 83 located at the other end of the connecting part 81. The action part 83 is used to lift the counterweight 23, and the driving component 6 acts on the action part 83. The driving part 61 is located below the action part 83. When the pot lid assembly is in the locked state, the lower end of the driving inclined surface 611 corresponds vertically to the action part 83. As the operating handle 4 drives the inner cover 2 to rotate to the unlocked state, the upper end of the driving inclined surface 611 gradually contacts the action part 83 and gradually pushes the action part 83 upward, causing the action part 83 to move upward, thereby driving the counterweight 23 to lift.

[0097] In another specific example, the transmission component 8 includes a connecting part 81 rotatably connected to the pot lid assembly, a force-receiving part 82 located at one end of the connecting part 81, and an action part 83 located at the other end of the connecting part 81. The action part 83 is used to lift the counterweight 23, and the driving component 6 acts on the force-receiving part 82. The driving part 61 is located above the force-receiving part 82. When the pot lid assembly is in the locked state, the high end of the driving inclined surface 611 corresponds vertically to the force-receiving part 82. As the operating handle 4 drives the inner cover 2 to rotate to the unlocked state, the low end of the driving inclined surface 611 gradually contacts the force-receiving part 82 and gradually pushes the force-receiving part 82 downward, causing the force-receiving part 82 to move downward and drive the transmission component 8 to rotate. The action part 83 moves upward, thereby driving the counterweight 23 to lift.

[0098] In one embodiment, such as Figures 14 to 16 As shown, the transmission component 8 includes a connecting part 81 that is rotatably connected to the pot lid assembly, a force-receiving part 82 located at one end of the connecting part 81, and an action part 83 located at the other end of the connecting part 81. The action part 83 is used to lift the counterweight 23, and the driving component 6 acts on the action part 83.

[0099] Specifically, the connecting part 81 is rotatably connected to the cover 1.

[0100] The transmission component 8 is rotatably connected to the pot lid assembly, thus forming a lever mechanism. Therefore, by designing the lever arm lengths at both ends of the connecting part 81, the driving force of the actuating part 83 on the counterweight 23 can be made more effortless, and user operation is also easier. The driving component 6 acts on the actuating part 83, that is, the part of the transmission component 8 that acts on the counterweight 23, allowing the driving component 6 to directly drive the actuating part 83, resulting in a more direct force and higher transmission efficiency.

[0101] This invention does not limit the operation method of venting and depressurizing. In one example, such as... Figure 14 , Figure 15 As shown, the lid 1 is equipped with a vent button 13, which acts on the force-bearing part 82. This enables manual venting. After pressure cooking is complete, the user can manually press the vent button 13 to activate the lid opening button on the force-bearing part 82, which in turn causes the actuating part 83 to lift the weight 23 to release the vent.

[0102] In another example, the lid assembly is equipped with an electromagnetic component that acts on the force-receiving part 82. This enables automatic venting. The electromagnetic component can be linked to the cooking program. After pressure cooking is completed, the program controls the electromagnetic component to automatically drive the force-receiving part 82, thereby causing the actuating part 83 to lift the weight 23. This process does not require manual operation by the user.

[0103] This utility model also discloses a pressure cooking appliance, including a pot body and the aforementioned pot lid assembly, wherein the inner lid 2 cooperates with the pot body to form a cooking cavity.

[0104] In one embodiment, one end of the lid assembly is rotatably connected to the pot body, allowing the lid assembly to flip relative to the pot body to open or close the cooking cavity. This ensures the lid assembly remains connected to the pot body, eliminating the hassle of storing the lid assembly after opening. Specifically, a torsion spring, damper, or other structure can be installed at the connection between the lid assembly and the pot body to provide damping force during opening and / or closing, making the opening and closing action smoother.

[0105] In another embodiment, the lid assembly can be removed from the pot body to open the cooking cavity. The lid assembly can be removed from the pot body, thus fully opening the cooking cavity, making it convenient for the user to serve food and for the user to clean the lid assembly.

[0106] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0107] 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.

[0108] 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 pot lid assembly, comprising a top cover and an inner cover disposed below the top cover, characterized in that, The top cover is provided with a vent hole and a mounting hole. An identifier is provided in the mounting hole. A float valve is fixed in the inner cover. The inner cover can rotate relative to the top cover so that the pot lid assembly has a locked state that is locked with the pot body and an unlocked state that is unlocked from the pot body. In the locked state, the float valve is vertically aligned with the mounting hole and can push the identifier upward. In the unlocked state, the float valve is vertically aligned with the vent hole and is connected.

2. The pot lid assembly according to claim 1, characterized in that, The vent hole is provided with an air baffle rib protruding towards the inner cover on its outer periphery, and the air baffle rib is provided with a clearance opening in the circumferential direction for the float valve to pass through.

3. The pot lid assembly according to claim 1, characterized in that, The inner wall of the mounting hole extends vertically to form a mounting channel. The marker has a guide section and a limiting section in the vertical direction. The limiting section is provided with a limiting structure. The inner wall of the mounting channel is provided with a mating structure. The limiting structure can stop with the mating structure in the circumferential direction to restrict the rotation of the marker.

4. The pot lid assembly according to claim 1, characterized in that, The lower surface of the cover is provided with a downwardly protruding rib, which forms a slide. When the inner cover rotates, at least a portion of the movement trajectory of the float valve is located inside the slide. At least one of the mounting hole and the vent hole is located inside the slide.

5. The pot lid assembly according to claim 4, characterized in that, The slide is provided with a downwardly protruding limiting protrusion that extends along the movement direction of the float valve and can abut against the float valve to create a gap between the float valve and the lower surface of the cover.

6. The pot lid assembly according to claim 1, characterized in that, The mounting hole is provided with a limiting rib protruding towards the inner cover on its outer periphery. The limiting rib forms a limiting space. The float valve has an upward position and a downward position. In the upward position, at least a portion of the float valve is located within the limiting space. In the downward position, the float valve is located outside the limiting space.

7. The pot lid assembly according to claim 1, characterized in that, The pot lid assembly also includes an operating handle protruding from the surface of the lid. The operating handle is fixedly connected to the inner lid so as to drive the inner lid to rotate. The inner lid is provided with an exhaust pipe and a counterweight placed at the top of the exhaust pipe. The pot lid assembly is provided with a transmission component, and the operating handle is provided with a driving component. In the unlocked state, the driving component drives the transmission component to move to lift the counterweight.

8. The pot lid assembly according to claim 7, characterized in that, The operating handle is provided with a downwardly protruding mounting boss. The driving component has a fixing part and a driving part. The fixing part is fixed to the mounting boss. The driving part is provided with a driving slope. The driving slope gradually increases in height from one end of the driving part to the other end. The driving slope is used to cooperate with the transmission component to drive the transmission component to move.

9. The pot lid assembly according to claim 7, characterized in that, The transmission component includes a connecting part rotatably connected to the pot lid assembly, a force-receiving part located at one end of the connecting part, and an action part located at the other end of the connecting part. The action part is used to lift the weight, the driving component acts on the action part, and the lid is provided with an exhaust button that acts on the force-receiving part; or, the pot lid assembly is provided with an electromagnetic component that acts on the force-receiving part.

10. A pressure cooking appliance, comprising a pot body, characterized in that, It also includes the lid assembly according to any one of claims 1-9, wherein the inner lid cooperates with the pot body to form a cooking cavity; one end of the lid assembly is rotatably connected to the pot body so that the lid assembly can be flipped relative to the pot body to open or close the cooking cavity; or... The lid assembly can be removed from the pot body to open the cooking cavity.

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