Pressure cooker cover and pressure cooker

Abstract

The utility model provides a pressure cooker cover and a pressure cooker. The pressure cooker cover comprises a cover body; the opening stopping valve is arranged on the cover body in a penetrating mode and can ascend and descend along the cover body; the first locking piece is arranged on one side of the opening stopping valve, and the first locking piece is rotationally connected to the cover body and can rotate in the direction close to or away from the opening stopping valve so as to lock or loosen the opening stopping valve; the second locking piece is arranged on the edge of the cover body and can slide in the axial direction of the cover body so as to lock or loosen the pressure cooker cover; the operating part is movably connected to the cover body, and the operating part drives the first locking part and the second locking part to move, so that one of the first locking part and the second locking part is in a locked state, and the other one is in a loosened state. The use safety of the pressure cooker can be improved.

Description

Technical Field

[0001] This application relates to the field of kitchen utensil technology, and more particularly to a pressure cooker lid and a pressure cooker. Background Technology

[0002] A pressure cooker is a common cooking appliance that primarily increases the heating temperature by increasing the pressure inside the pot, thereby accelerating the heating process. A pressure cooker mainly consists of a pressure lid and a pot body, which are secured to each other using clips or other means. Normally, to ensure safe use, the pressure should be increased with the lid properly installed, and the lid should be opened only after the pressure has been completely released. However, users sometimes make mistakes during pressure cooker use, leading to potential dangers. Utility Model Content

[0003] This application provides a pressure cooker lid and a pressure cooker to improve the safety of using the pressure cooker.

[0004] The first aspect of this application provides a pressure cooker lid, which includes:

[0005] Cover;

[0006] A check valve is inserted into the cover and can move up and down along the cover.

[0007] A first locking element is disposed on one side of the stop valve. The first locking element is rotatably connected to the cover and can rotate toward or away from the stop valve to lock or release the stop valve.

[0008] The second locking element is disposed on the edge of the lid and can slide along the axial direction of the lid to lock or release the pressure cooker lid;

[0009] An operating component is movably connected to the cover. The operating component drives the first locking component and the second locking component to move, so that one of the first locking component and the second locking component is in a locked state and the other is in an unlocked state.

[0010] The pressure cooker lid provided in this application includes a lid body, a check valve, a first locking element, a second locking element, and an operating element. The check valve passes through the lid body and can move up and down along the lid body. The first locking element is located on one side of the check valve and is rotatably connected to the lid body. It can rotate towards or away from the check valve to lock or release the check valve. The second locking element is located on the edge of the lid body and can slide along the axial direction of the lid body to lock or release the pressure cooker lid. The operating element is movably connected to the lid body. The operating element drives the first and second locking elements to move, so that one of the first and second locking elements is in a locked state and the other is in a released state. The linkage between the first and second locking elements is achieved through the operating element, which can ensure that the pressure cooker lid can be installed and removed in a depressurized state, and can also ensure that the pressure cooker can be pressurized in a locked state, thereby ensuring the safety of using the pressure cooker.

[0011] Optionally, the operating component is flipped and connected to the cover. The operating component includes a main shaft, a first connecting portion, and a second connecting portion. The first connecting portion is eccentrically disposed with respect to the main shaft and cooperates with the first locking member to rotate the first locking member. The second connecting portion is eccentrically disposed with respect to the main shaft and cooperates with the second locking member to slide the second locking member along the axial direction of the cover. When the operating component flips around the main shaft, both the first and second connecting portions swing around the main shaft. By reasonably setting the distances of the first and second connecting portions from the main shaft, the swing amplitudes of the first and second connecting portions can be changed, thereby allowing the first and second locking members to meet their expected strokes.

[0012] Optionally, the main shaft extends above the first locking member, and the first connecting portion protrudes from one side of the main shaft along its own radial direction. The main shaft limits the first locking member along the axial direction of the lid, thereby reducing the vibration or movement of the first locking member along the axial direction of the lid and increasing the stability and reliability of the first locking member. Furthermore, when the main shaft and the first locking member rotate, the surfaces of the main shaft and the first locking member move relative to each other in a rolling manner, thereby reducing the frictional resistance of the first locking member and making operation more effortless. In addition, the main shaft of the operating member directly limits the first locking member, eliminating the need for a dedicated limiting structure or component for the first locking member, thereby reducing the number of parts and simplifying the overall structure of the pressure cooker lid.

[0013] Optionally, at least one section of the first connecting portion extends in an arc along a direction away from the main axis. This ensures that the direction of the force between the first connecting portion and the first locking member is as perpendicular as possible to the extension direction or tangential direction of the first connecting portion, thereby making the movement of the first connecting portion more effortless and smoother, and preventing jamming between the first connecting portion and the first locking member.

[0014] Optionally, the second locking member is located at one end of the main body shaft, and the second connecting portion protrudes from one end of the main body shaft along its own axial direction. This allows for a reliable fit between the second connecting portion and the second locking member while minimizing the size of the second connecting portion.

[0015] Optionally, the pressure cooker lid further includes a lid tooth assembly, which is disposed on the outer periphery of the lid body and fixedly connected to the lid body. The lid tooth assembly includes at least two lid teeth, which protrude in a direction away from the axis of the lid body, and the lid teeth are spaced apart around the axis of the lid body. The lid tooth assembly and the lid body are respectively processed and formed, and connected to each other as a whole by welding or riveting, so as to simplify the structure of the lid body, reduce the processing difficulty of the lid body, and improve the production efficiency and quality of the pressure cooker lid.

[0016] Optionally, the lid tooth assembly includes a retaining ring, which is sleeved on the outer periphery of the lid body and fixedly connected to the lid body. The lid teeth protrude from the outer periphery of the retaining ring. Each lid tooth is interconnected to form a whole through the retaining ring, and the retaining ring simultaneously secures each lid tooth, thereby reducing the number of parts in the pressure cooker lid and improving the assembly efficiency of the pressure cooker lid.

[0017] Optionally, above the fixing ring, the outer diameter of the lid body is not greater than the inner diameter of the fixing ring. The fixing ring is installed on the lid body from top to bottom, so that the installation direction of the lid tooth assembly is consistent with the force direction of the lid tooth. That is to say, the pot tooth plays a tightening role on the lid tooth assembly. Under the tightening force of the pot tooth, the lid tooth assembly cannot move in the disassembly direction, thereby preventing the pressure cooker lid from loosening or falling off during cooking.

[0018] Optionally, the outer periphery of the lid is provided with a limiting protrusion, and the lid tooth assembly is located above the limiting protrusion, with the lower surface of the lid tooth assembly abutting against the upper surface of the limiting protrusion. The limiting protrusion supports the lid tooth assembly, preventing it from bending or sliding towards the pot body, which could lead to loosening of the fit between the lid tooth and the pot tooth, affecting the safety and reliability of the pressure cooker.

[0019] Optionally, the lid is provided with a vent hole, and the pressure cooker lid further includes: a pressure-limiting valve, facing the vent hole and capable of sliding along the axial direction of the vent hole to open or close the vent hole; a stepped seat, disposed above the lid, the stepped seat gradually increasing or decreasing in height along the circumferential direction of the pressure-limiting valve; and an operating handle connected to the pressure-limiting valve, the operating handle protruding radially from one side of the pressure-limiting valve, the operating handle being able to rotate around the axis of the vent hole and engage with the stepped seat to keep the vent hole open. After cooking, the user lifts the pressure-limiting valve using the operating handle to release pressure. The operating handle avoids the spray area of ​​the vent hole, preventing burns to the user. By engaging the operating handle with the support base, the vent hole remains in the venting state after the user releases the operating handle, improving convenience and safety. Furthermore, by engaging the operating handle with platforms of different heights, the opening size of the vent hole can be adjusted, thereby controlling the venting speed of the pressure-limiting valve as needed, preventing liquid overflow during venting, and improving the user experience of the pressure cooker. In addition, the pressure relief valve is supported by an operating handle, eliminating the need for a dedicated support structure and simplifying its structure.

[0020] Optionally, the lid body is provided with a mounting hole, and the pressure cooker lid further includes: a safety valve, which passes through the mounting hole; and a support base, which is disposed above the lid body and connects the lid body and the safety valve, and the support base is elastic. In its natural state, the safety valve and the upper side of the lid body seal against each other to close the mounting hole; when the pressure is too high, the safety valve rises and opens the mounting hole, and the support base deforms away from the lid body along with the safety valve. By limiting the lifting stroke of the support base through deformation, the movement of the safety valve is made more stable, and it can also prevent the safety valve and other components from popping out under the impact of high-pressure gas, thereby improving the safety of the pressure cooker lid. In addition, after the pressure inside the pot drops to the normal range, the support base can automatically restore its deformation, allowing the safety valve to close the mounting hole, eliminating the need to replace parts and reducing the use and maintenance costs of the pressure cooker.

[0021] A second aspect of this application provides a pressure cooker, comprising a pot body and any of the pressure cooker lids provided in this application. The pressure cooker lid is movably connected to the pot body and can achieve a sealing fit with the pot body. An operating component enables the linkage between a first locking component and a second locking component, ensuring that the pressure cooker lid can be installed and removed in a depressurized state, and that the pressure cooker can be pressurized when the lid is locked, thereby ensuring the safe use of the pressure cooker.

[0022] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the pot body provided in an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of a pressure cooker lid provided in an embodiment of this application;

[0025] Figure 3 An exploded view of a portion of the structure of the pressure cooker lid provided in an embodiment of this application;

[0026] Figure 4 A schematic diagram of the structure with the operating element in the first position;

[0027] Figure 5 for Figure 4 A magnified view of the state shown from another angle;

[0028] Figure 6 A schematic diagram of the partial structure of the operating component in the second position;

[0029] Figure 7 for Figure 6 A magnified view of the state shown from another angle;

[0030] Figure 8 This is a schematic diagram of the internal structure of the pressure cooker lid provided in an embodiment of this application;

[0031] Figure 9 for Figure 8 A schematic cross-sectional view of the pressure relief valve assembly of the pressure cooker lid shown.

[0032] Figure 10 for Figure 8 A cross-sectional schematic diagram of the safety valve assembly of the pressure cooker lid shown.

[0033] Figure 11 for Figure 8 The diagram shows a cross-sectional view of the pressure cooker lid.

[0034] Figure label:

[0035] 10-Pressure cooker lid;

[0036] 20 - Pot body;

[0037] 201-Pot Teeth;

[0038] 202-Locking groove;

[0039] 1-Lid;

[0040] 11-Receiving groove;

[0041] 12-Limiting protrusion;

[0042] 13-Exhaust port;

[0043] 14 - Mounting holes;

[0044] 15-groove;

[0045] 16-Boss;

[0046] 17-Connecting post;

[0047] 2-Check valve;

[0048] 3-First locking element;

[0049] 31-First guide groove;

[0050] 4-Second locking element;

[0051] 41-Extension;

[0052] 42-Second guide groove;

[0053] 5-Operating components;

[0054] 51-Main axis;

[0055] 52-First connecting part;

[0056] 53-Second connecting part;

[0057] 6-Cover assembly;

[0058] 61-Cover teeth;

[0059] 62-Fixing ring;

[0060] 63-Annular cover;

[0061] 7-Pressure relief valve assembly;

[0062] 71 - Pressure relief valve;

[0063] 711 - Sealing part;

[0064] 712 - Guide rod;

[0065] 713 - Counterweight;

[0066] 7131 - Exhaust bulge;

[0067] 72-Step seat;

[0068] 73-operating handle;

[0069] 731 - Connecting part;

[0070] 8-Safety valve assembly;

[0071] 81 - Safety valve;

[0072] 811 - Seals;

[0073] 812 - Installation Department;

[0074] 813 - Limiting groove;

[0075] 82-Support base;

[0076] 821 - Card slot;

[0077] 9-Cover;

[0078] 91-Active buckle;

[0079] 92-Unfastening section.

[0080] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0081] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0082] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it 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 application according to the specific circumstances.

[0083] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0084] like Figure 1 and Figure 2As shown in the illustration, this application provides a pressure cooker, which includes a pot body 20 and a pressure cooker lid 10. The pressure cooker lid 10 is movably connected to the pot body 20 and can achieve a sealing fit with the pot body 20 to generate high pressure inside the pot, meeting the requirements of high-pressure cooking. The inner wall of the pot body 20 may be provided with multiple protruding teeth 201, which are spaced apart circumferentially along the pot body 20. The outer wall of the pressure cooker lid 10 may be provided with protruding cover teeth 61, which are spaced apart circumferentially along the pressure cooker lid 10. When the pressure cooker lid 10 needs to be placed on the pot body 20, the cover teeth 61 are aligned with the gaps between the teeth 201, and the pressure cooker lid 10 is moved from top to bottom. When the pressure cooker lid 10 is in place, it is rotated so that the cover teeth 61 stop below the teeth 201, thereby fixing the pressure cooker lid 10 in place.

[0085] like Figure 2 and Figure 3 As shown, in some embodiments, the pressure cooker lid 10 includes a lid body 1 and a lid tooth assembly 6, that is, the aforementioned lid teeth 61 constitute the lid tooth assembly 6. The lid tooth assembly 6 is disposed on the outer periphery of the lid body 1 and is fixedly connected to the lid body 1. In other words, the lid tooth assembly 6 and the lid body 1 are respectively processed and formed, and are connected to each other as a whole by welding or riveting, so as to simplify the structure of the lid body 1, reduce the processing difficulty of the lid body 1, and improve the production efficiency and production quality of the pressure cooker lid 10.

[0086] Furthermore, the lid tooth assembly 6 includes a retaining ring 62. The retaining ring 62 is sleeved on the outer periphery of the lid body 1 and fixedly connected to the lid body 1, with lid teeth 61 protruding from the outer periphery of the retaining ring 62. The lid teeth 61 and the retaining ring 62 are integrally formed, and each lid tooth 61 is interconnected to form a whole through the retaining ring 62. The retaining ring 62 simultaneously realizes the installation and fixation of each lid tooth 61, thereby reducing the number of parts in the pressure cooker lid 10 and improving the assembly efficiency of the pressure cooker lid 10. It is understood that in other embodiments, each lid tooth 61 may also be individually connected to the lid body 1.

[0087] Furthermore, above the retaining ring 62, the outer diameter of the lid 1 is not greater than the inner diameter of the retaining ring 62. The retaining ring 62 is installed on the lid 1 from top to bottom, so that the installation direction of the lid tooth assembly 6 is consistent with the force direction of the lid tooth 61. That is to say, the pot tooth 201 plays a role in tightening the lid tooth assembly 6. Under the tightening force of the pot tooth 201, the lid tooth assembly 6 cannot move in the disassembly direction, thereby preventing the pressure cooker lid 10 from loosening or falling off during cooking.

[0088] Furthermore, the lid assembly 6 also includes an annular cover 63, which is disposed above the fixing ring 62 and is detachably connected to the fixing ring 62 (e.g., by fasteners such as screws). The annular cover 63 serves as the external form of the lid assembly 6, improving the appearance and integrity of the pressure cooker lid 10.

[0089] Furthermore, a limiting protrusion 12 is provided on the outer periphery of the lid 1, protruding from the outer surface of the lid 1. The lid tooth assembly 6 is located above the limiting protrusion 12, and the lower surface of the lid tooth assembly 6 abuts against the upper surface of the limiting protrusion 12. The limiting protrusion 12 supports the lid tooth assembly 6, preventing the lid tooth assembly 6 from bending or sliding towards the pot body 20, which would cause the fit between the lid tooth 61 and the pot tooth 201 to loosen, affecting the safety and reliability of the pressure cooker.

[0090] Furthermore, the bottom edge of the lid 1 is provided with an outward flange, which is spaced apart from the limiting protrusion 12, and a receiving groove 11 is formed between the flange and the limiting protrusion 12, in which a sealing ring is installed. When the pressure cooker lid 10 is closed on the pot body 20, the sealing ring achieves a sealing fit between the pressure cooker lid 10 and the pot body 20.

[0091] like Figures 4-7 As shown, in some embodiments, the pressure cooker lid 10 also includes a check valve 2, which passes through the lid body 1 and can move up and down along the lid body 1. When the check valve 2 rises, the pressure cooker lid 10 forms a sealed state, and high pressure can be formed inside the pot; when the check valve 2 falls, the pressure cooker lid 10 forms a depressurized state, and the pressure inside the pot is released.

[0092] Furthermore, the pressure cooker lid 10 also includes a first locking member 3, which is plate-shaped. The first locking member 3 is located on one radial side of the check valve 2, and is rotatably connected to the lid body 1. It can rotate towards or away from the check valve 2 to lock or release the check valve 2. Specifically, when the first locking member 3 rotates towards the check valve 2, it locks the check valve 2, preventing it from rising and thus keeping the pressure cooker lid 10 in a depressurized state. When the first locking member 3 rotates away from the check valve 2, it releases the check valve 2, allowing it to rise freely and thus forming a sealed state for high-pressure cooking. The movement direction of the first locking member 3 is approximately perpendicular to the movement direction of the check valve 2, which improves the stability of the first locking member 3 and prevents them from interacting and causing a change in the state of the first locking member 3.

[0093] Furthermore, the pressure cooker lid 10 also includes a second locking member 4, and the pot body 20 is provided with a locking groove 202. The second locking member 4 is disposed on the edge of the lid body 1 and can slide along the axial direction of the lid body 1 to lock or release the pressure cooker lid 10. Specifically, when the lid teeth 61 and the pot teeth 201 are engaged, the second locking member 4 is directly opposite the locking groove 202. The second locking member 4 can slide towards the pot body 20 and engage with the locking groove 202, thereby locking the pressure cooker lid 10 and the pot body 20 together, preventing the pressure cooker lid 10 and the pot body 20 from rotating relative to each other, ensuring that the pressure cooker lid 10 and the pot body 20 maintain a reliable connection, and preventing the pressure cooker lid 10 from accidentally loosening or falling off during use; when the second locking member 4 slides away from the pot body 20, the second locking member 4 can release the lock on the pressure cooker lid 10 and the pot body 20, allowing the pressure cooker lid 10 and the pot body 20 to rotate freely, realizing the installation and removal of the pressure cooker lid 10. The movement direction of the second locking member 4 is approximately perpendicular to the rotation direction of the pressure cooker lid 10, which can improve the stability of the second locking member 4 and prevent the two from interacting and causing the state of the second locking member 4 to change.

[0094] Furthermore, a connecting post 17 can be provided at the top of the pressure cooker lid 10, and the first locking member 3 is rotatably connected to the connecting post 17. The second locking member 4 has a plate-shaped extension 41, which is connected to the connecting post 17. By using the same connecting post 17 to simultaneously install and guide the first locking member 3 and the second locking member 4, the overall structure of the pressure cooker lid 10 can be simplified, and the compactness of the pressure cooker lid 10 structure can be improved.

[0095] Furthermore, the pressure cooker lid 10 also includes an operating component 5, which can be disposed on one side of the connecting post 17. The operating component 5 is movably connected to the lid body 1, with a portion of the operating component 5 protruding from the outside of the pressure cooker lid 10 to facilitate the user applying external force to the operating component 5. The operating component 5 drives the first locking component 3 and the second locking component 4 to move, so that one of the first locking component 3 and the second locking component 4 is in a locked state and the other is in a released state. The linkage between the first locking component 3 and the second locking component 4 achieved by the operating component 5 can ensure that the pressure cooker lid 10 can be installed and removed in a depressurized state, and can also ensure that the pressure cooker can be pressurized in a locked state, thereby ensuring the safety of using the pressure cooker.

[0096] Specifically, the operating component 5 can be slidably connected to the lid 1, or the operating component 5 can be rotatably connected to the lid 1, etc. The operating component 5 has a first position and a second position. When the operating component 5 is in the first position, the first locking component 3 is in a locked state, and the second locking component 4 is in a released state, so that the pressure cooker lid 10 is in a depressurized state, and the pressure cooker lid 10 can rotate on the pot body 20, so that the pressure cooker lid 10 can be installed and removed as needed. When the operating component 5 is in the second position, the second locking component 4 is in a locked state, and the first locking component 3 is in a released state, so that the pressure cooker lid 10 is locked on the pot body 20, and the check valve 2 can rise freely, so that a high pressure state can be formed inside the pressure cooker as needed to meet the requirements of high-pressure cooking. When the operating element 5 is in the second position and high pressure is generated inside the pot, the stop valve 2 rises and the stop valve 2 forms a stop limit on the first locking element 3, so that the operating element 5 cannot move to the first position. In other words, under high pressure cooking, the first locking element 3 cannot switch to the locked state and the second locking element 4 cannot switch to the released state, thereby ensuring that the pressure cooker lid 10 cannot be disassembled under high pressure, thus ensuring the safe use of the pressure cooker lid 10.

[0097] In one embodiment, the operating member 5 is flipped and connected to the cover 1. The operating member 5 includes a main shaft 51, a first connecting part 52, and a second connecting part 53, making the overall structure simpler and more compact. The operating member 5 rotates around the main shaft 51 to change the angle between the operating member 5 and the cover 1. The first connecting part 52 is eccentrically positioned with respect to the main shaft 51 and cooperates with the first locking member 3 to rotate the first locking member 3. The second connecting part 53 is eccentrically positioned with respect to the main shaft 51 and cooperates with the second locking member 4 to slide the second locking member 4 along the axial direction of the cover 1. Thus, when the operating member 5 rotates around the main shaft 51, both the first connecting part 52 and the second connecting part 53 swing around the main shaft 51. By reasonably setting the distance between the first connecting part 52 and the second connecting part 53 and the main shaft 51, the swing amplitude of the first connecting part 52 and the second connecting part 53 can be changed, thereby allowing the first locking member 3 and the second locking member 4 to meet the expected movement stroke.

[0098] Specifically, the first locking member 3 is provided with a first guide groove 31, which includes two side walls opposite each other in the horizontal direction; the second locking member 4 is provided with a second guide groove 42, which includes two side walls opposite each other in the vertical direction. When the operating member 5 rotates around the main body axis 51, both the first connecting part 52 and the second connecting part 53 swing around the main body axis 51; the horizontal movement of the first connecting part 52 interacts with the side wall of the first guide groove 31, thereby causing the first locking member 3 to move closer to or away from the check valve 2; the vertical movement of the second connecting part 53 interacts with the side wall of the second guide groove 42, thereby causing the second locking member 4 to slide along the axial direction of the cover 1.

[0099] Furthermore, the main shaft 51 extends above the first locking member 3, and the first connecting part 52 protrudes from one side of the main shaft 51 along its own radial direction. That is, the lower surface of the main shaft 51 abuts against the upper surface of the first connecting part 52 or leaves a small gap. The first connecting part 52 passes through the first locking member 3 from top to bottom. The main shaft 51 limits the first locking member 3 along the axial direction of the cover 1 to reduce the vibration or movement of the first locking member 3 along the axial direction of the cover 1, thereby increasing the stability and reliability of the first locking member 3. In addition, when the main shaft 51 and the first locking member 3 rotate, the surfaces of the main shaft 51 and the first locking member 3 move relative to each other in a rolling manner, thereby reducing the frictional resistance of the first locking member 3 and making the operation more effortless. Moreover, the main shaft 51 of the operating member 5 directly limits the first locking member 3, eliminating the need for a special limiting structure or component for the first locking member 3, thereby reducing the number of parts and simplifying the overall structure of the pressure cooker lid 10.

[0100] Furthermore, at least a portion of the first connecting portion 52 extends in an arc along a direction away from the main axis 51. This is to ensure that the direction of the force between the first connecting portion 52 and the first locking member 3 is as perpendicular as possible to the extension direction or tangential direction of the first connecting portion 52, thereby making the movement of the first connecting portion 52 more effortless and smooth, and preventing jamming between the first connecting portion 52 and the first locking member 3. Understandably, in other embodiments, the first connecting portion 52 may extend in a straight line along a direction away from the main axis 51.

[0101] Furthermore, the second locking member 4 is located at one end of the main shaft 51, and the second connecting part 53 protrudes from one end of the main shaft 51 along its own axial direction. This ensures a reliable fit between the second connecting part 53 and the second locking member 4 while minimizing the size of the second connecting part 53. Specifically, the main shaft 51 only rotates, and the second locking member 4 only moves along the axial direction of the cover 1. This ensures that the distance between the second locking member 4 and the main shaft 51 along the axial direction of the main shaft 51 remains constant during the movement of the main shaft 51 and the second locking member 4. Therefore, the fit depth between the second connecting part 53 and the second locking member 4 remains constant, thus eliminating the need for excessive fit allowance between the second connecting part 53 and the second locking member 4 and effectively reducing the size of the second connecting part 53.

[0102] like Figure 8 and Figure 9As shown, in some embodiments, the pressure cooker lid 10 further includes a pressure limiting valve assembly 7, which includes a pressure limiting valve 71. The lid body 1 is provided with a vent 13, and the pressure limiting valve 71 is directly opposite the vent 13 and can slide along the axial direction of the vent 13 to open or close the vent 13, thereby limiting the maximum pressure inside the pot, meeting the high-pressure requirements during the cooking process, and the pressure relief requirements after cooking. Specifically, when the pressure limiting valve 71 closes the vent 13, a sealed state is formed inside the pot, thereby increasing the pressure inside the pot to meet the high-pressure cooking requirements; when the pressure limiting valve 71 opens the vent 13, a pressure relief state is formed inside the pot, and the gas inside the pot is quickly discharged through the vent 13, preventing excessive pressure inside the pot during cooking and achieving pressure relief after cooking.

[0103] Furthermore, the pressure relief valve assembly 7 also includes a stepped seat 72 and an operating handle 73. The stepped seat 72 is disposed above the cover 1 and rises and falls circumferentially along the pressure relief valve 71, thereby forming at least two platforms of different heights around the pressure relief valve 71. The operating handle 73 is connected to the pressure relief valve 71 and protrudes radially from one side of the pressure relief valve 71. After cooking, the user can lift the pressure relief valve 71 by holding the operating handle 73 to release pressure. The operating handle 73 can avoid the spray area of ​​the vent 13 to prevent burns to the user. The operating handle 73 can rotate around the axis of the vent 13 and engage with the stepped base 72 to keep the vent 13 open. This means that even after the user releases the operating handle 73, the vent 13 remains open, improving ease of use and safety. Furthermore, by engaging the operating handle 73 with platforms of different heights, the opening of the vent 13 can be adjusted, thereby controlling the venting speed of the pressure relief valve 71 as needed, preventing liquid overflow during venting, and improving the user experience of the pressure cooker. In addition, using the operating handle 73 to support the pressure relief valve 71 eliminates the need for a dedicated support structure on the pressure relief valve 71, simplifying its structure.

[0104] Specifically, the stepped seat 72 can be directly connected to the cover 1, or indirectly connected to the cover 1 through other components, as long as the stepped seat 72 is positioned above the cover 1 and can move up and down circumferentially along the pressure relief valve 71. When the stepped seat 72 is directly connected to the cover 1, the stepped seat 72 can be integrally formed on the surface of the cover 1, or the stepped seat 72 can be fixed to the surface of the cover 1 by means of adhesive or screws.

[0105] Furthermore, the operating handle 73 and the pressure relief valve 71 are configured as two independent components. The end of the operating handle 73 facing the pressure relief valve 71 may have a connecting portion 731. The connecting portion 731 is sleeved on the pressure relief valve 71 and forms a detachable connection with it, thereby connecting the operating handle 73 and the pressure relief valve 71 to form a single unit, simplifying the structure of the pressure relief valve 71 and improving its machining accuracy. In addition, the operating handle 73 can also be made of heat-insulating material, which can reduce the weight of the operating handle 73 and prevent overheating and burns. Understandably, in other embodiments, the operating handle 73 and the pressure relief valve 71 may also be integrally formed.

[0106] Specifically, when the operating handle 73 and the pressure relief valve 71 are configured as two independent components, the pressure relief valve 71 and the operating handle 73 are fixed relative to each other axially to ensure that the pressure relief valve 71 can rise and fall synchronously with the operating handle 73 to adjust the opening of the exhaust port 13. The pressure relief valve 71 and the operating handle 73 can be fixed relative to each other circumferentially, that is, the pressure relief valve 71 rotates and rises and falls synchronously with the operating handle 73; or, the operating handle 73 can be rotatably connected to the pressure relief valve 71, that is, the operating handle 73 rotates alone, and the pressure relief valve 71 only rises and falls axially with the operating handle 73.

[0107] Furthermore, the pressure relief valve 71 includes a sealing part 711 and a guide rod 712. The guide rod 712 passes through the vent hole 13 and forms an annular gap with the vent hole 13. The sealing part 711 is located above the vent hole 13 to open or close the annular gap. The vent hole 13 serves as a guide structure for the pressure relief valve 71, which not only improves the relative positional accuracy between the pressure relief valve 71 and the vent hole 13, ensuring that the pressure relief valve 71 can accurately close the vent hole 13, but also allows a portion of the pressure relief valve 71 to sink into the interior of the lid 1, thereby reducing the overall height of the pressure relief valve 71 and improving the compactness of the overall structure of the pressure cooker lid 10. It is understood that in other embodiments, a dedicated guide structure may also be provided on the surface of the lid 1.

[0108] Furthermore, the sealing part 711 can be provided with a conical surface or an arc surface on the side facing the vent 13, forming a sealing fit with the vent 13 through the conical surface or arc surface. On the one hand, this can reduce the sealing area and increase the reliability of the sealing fit; on the other hand, it can play a role in automatic centering, preventing the pressure relief valve 71 from deviating from the vent 13 and affecting the sealing effect.

[0109] Furthermore, the sealing part 711 and the guide rod 712 are integrally formed. This reduces machining errors, improves the accuracy of the pressure relief valve 71 itself, and reduces the number of parts, thus lowering production costs. Understandably, in other embodiments, the sealing part 711 and the guide rod 712 may also be provided as two separate components and connected to each other as a whole by means of threaded engagement or other methods.

[0110] Furthermore, the pressure relief valve 71 includes a counterweight 713 located below (i.e., inside) the lid 1 and connected to the guide rod 712. By providing the counterweight 713 inside the lid 1, the weight of the pressure relief valve 71 is increased, reducing the volume of the pressure relief valve 71 exposed outside the lid 1, thereby further improving the structural compactness of the pressure cooker lid 10 and enhancing its appearance.

[0111] Furthermore, the counterweight 713 can be configured as a circular cylindrical structure with a large diameter and a small height to minimize the downward extension distance of the counterweight 713 and prevent liquid or foam in the pot from contacting the counterweight 713, thus avoiding problems such as contamination or weight change of the counterweight 713. Understandably, in other embodiments, the counterweight 713 can also be configured as other shapes as needed, such as a conical or polygonal cylinder.

[0112] Specifically, the counterweight 713 is sleeved on the outer periphery of the guide rod 712. An axial fixing structure such as a snap fastener, snap ring, or nut can be provided below the counterweight 713 to provide axial support, ensuring stable installation of the counterweight 713 on the guide rod 712. Furthermore, the counterweight 713 is detachably connected to the guide rod 712, facilitating the disassembly and cleaning of the pressure relief valve 71.

[0113] Furthermore, a gap is provided between the top surface of the counterweight 713 and the lower surface of the cover 1 to provide the pressure relief valve 71 with axial movement along the exhaust port 13, avoiding interference between the counterweight 713 and the cover 1, which would prevent the pressure relief valve 71 from properly opening the exhaust port 13. The counterweight 713 can stop on the lower surface of the cover 1, providing axial positioning for the pressure relief valve 71 to prevent it from detaching from the valve body and falling off.

[0114] Furthermore, at least one of the top surface of the counterweight 713 and the lower surface of the cover 1 is provided with an exhaust protrusion 7131. The number of exhaust protrusions 7131 is not less than two. Each exhaust protrusion 7131 is arranged at intervals around the axis of the counterweight 713, and an exhaust gap is formed between adjacent exhaust protrusions 7131 to prevent the counterweight 713 from sticking to the cover 1 and closing the exhaust port 13, thus affecting the normal emission of gas.

[0115] Specifically, the exhaust protrusion 7131 can be configured as any suitable structure, such as a dot shape or a strip shape. When the exhaust protrusion 7131 is configured as a strip shape, the exhaust protrusion 7131 can extend radially along the counterweight 713, or the exhaust protrusion 7131 can also extend circumferentially along the counterweight 713.

[0116] like Figure 8 and Figure 10As shown, the pressure cooker lid 10 also includes a safety valve assembly 8, which includes a safety valve 81. The lid body 1 has a mounting hole 14, through which the safety valve 81 passes. In its natural state, the safety valve 81 closes the mounting hole 14, and the pressure relief valve 71 opens the vent hole 13 to release pressure. When the vent hole 13 becomes blocked or other abnormalities prevent normal venting, the pressure inside the pot will rise rapidly. When the pressure is too high, the safety valve 81 opens the mounting hole 14 to release pressure, thus providing safety protection and preventing the pot from becoming too pressurized and potentially exploding.

[0117] Furthermore, the safety valve assembly 8 also includes a resilient support base 82, which is positioned above the cover 1 and connects the cover 1 to the safety valve 81, thus securing the safety valve 81. In its natural state, the safety valve 81 seals against the upper side of the cover 1 (e.g., a conical seal) to close the mounting hole 14. When the pressure is too high, the safety valve 81 rises and opens the mounting hole 14, causing the support base 82 to deform away from the cover 1 along with the safety valve 81. The deformation of the support base 82 limits its lifting stroke, making the movement of the safety valve 81 smoother and preventing components such as the safety valve 81 from popping out under the impact of high-pressure gas, thus improving the safety of the pressure cooker lid 10. In addition, after the pressure inside the pot drops to a normal range, the support base 82 automatically returns to its original shape, allowing the safety valve 81 to close the mounting hole 14, eliminating the need to replace parts and reducing the operating and maintenance costs of the pressure cooker.

[0118] Furthermore, the safety valve 81 is provided with a sealing element 811, which can be made of elastic materials such as silicone or rubber. The safety valve 81 forms a sealing fit with the cover body 1 through the elastic sealing element 811, thereby reducing the fitting accuracy requirements between the safety valve 81 and the cover body 1 and reducing production costs.

[0119] Furthermore, the bottom of the safety valve 81 is provided with a mounting portion 812, and the sealing element 811 is sleeved on the mounting portion 812. The mounting portion 812 passes through the mounting hole 14 to form a radial limit on the sealing element 811; the outer periphery of the mounting portion 812 is provided with an annular limiting groove 813, and the sealing element 811 is installed in the limiting groove 813 to form an axial limit on the sealing element 811; the sealing element 811 elastically abuts against the upper side of the cover 1, thereby realizing the sealing fit between the sealing element 811 and the mounting hole 14.

[0120] Furthermore, the support base 82 is configured as a thin sheet extending radially along the lid 1. The support base 82 is elastic and can be bent and deformed along its own thickness direction. The support bases 82 are stacked on one side of the lid 1 to reduce the overall thickness of the pressure cooker lid 10, improve the compactness of the overall structure of the pressure cooker lid 10, and reduce the overall volume of the pressure cooker lid 10. For example, the support base 82 can be configured as a strip extending radially along the lid 1, or the support base 82 can be configured as a circular sheet structure, etc. It is understood that in other embodiments, an elastic element such as a spring can also be provided in the support base 82 to make the support base 82 as a whole elastic.

[0121] Specifically, the support base 82 can be stacked on top of the cover 1, or the support base 82 can be stacked on the bottom of the cover 1. The support base 82 and the cover 1 can be connected to each other by a detachable method such as screws or clips, or by a non-detachable method such as integral molding. Similarly, the support base 82 and the safety valve 81 can be connected to each other by a detachable method such as screws or clips, or by a non-detachable method such as integral molding.

[0122] Furthermore, the support base 82 is stacked on top of the lid 1, and the top of the lid 1 is provided with a groove 15. The support base 82 is disposed in the groove 15 to reduce the overall height of the lid 1, thereby reducing the overall volume of the pressure cooker lid 10 and improving the compactness of the pressure cooker lid 10 structure.

[0123] like Figure 8 and Figure 11 As shown, the pressure cooker lid 10 also includes a lid head 9, which the user holds to lift the pressure cooker lid 10. The lid head 9 fits into the groove 15, concealing components such as the support base 82 and the safety valve 81 inside the pressure cooker lid 10, thereby improving the appearance of the pressure cooker lid 10. The lid head 9 is detachably connected to the lid body 1 or the support base 82 to facilitate the maintenance or replacement of internal components such as the safety valve 81.

[0124] Specifically, a movable latch 91 can be provided at the end of the cover 9 facing the cover body 1, and a slot 821 can be provided on the cover body 1 or the support base 82. In the natural state, the movable latch 91 and the slot 821 are interlocked, and the cover 9 is stably installed and fixed on the cover body 1. When the user applies external force to the movable latch 91, the movable latch 91 disengages from the slot 821, and the cover 9 can be removed. The movable latch 91 is connected to a release part 92, at least a part of which is exposed outside the cover 9. The release part 92 drives the movable latch 91 to disengage from the slot 821, which makes the operation more convenient and effortless, and improves the ease of operation.

[0125] Furthermore, the vent 13 is located outside the area of ​​the groove 15. On the one hand, the vent 13 only needs to penetrate the relatively thin lid 1, which can reduce the axial length of the vent 13 and reduce the risk of the vent 13 becoming blocked; on the other hand, it allows the gas to be discharged on the exposed surface of the lid 1, preventing the liquid generated by the condensation of the gas from remaining inside the pressure cooker lid 10 and affecting the cleanliness of the pressure cooker lid 10.

[0126] The cover 1 can be provided with a boss 16 and other structures around the exhaust hole 13, which can not only improve the local strength of the cover 1 and prevent the exhaust hole 13 from being deformed or cracked, but also form a high-precision mating surface to improve the mating accuracy between the pressure relief valve 71 and the exhaust hole 13.

[0127] Furthermore, the stepped seat 72 is integrally formed on the edge of the cover 9, and the stepped seat 72 is connected to the upper surface of the cover body 1 through the cover 9. On the one hand, the original structure of the cover body 1 remains basically unchanged, simplifying the processing technology of the cover body 1; on the other hand, since the cover 9 is generally made of heat-insulating material, the stepped seat 72 is integrally formed with the cover 9, so that the stepped seat 72 plays a heat-insulating role below the operating handle 73, preventing the operating handle 73 from directly contacting the cover body 1 and overheating.

[0128] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A pressure cooker lid, characterized in that, include: Cover (1); A stop valve (2) is inserted into the cover (1) and can move up and down along the cover (1); The first locking element (3) is disposed on one side of the stop valve (2). The first locking element (3) is rotatably connected to the cover (1) and can rotate toward or away from the stop valve (2) to lock or release the stop valve (2). The second locking element (4) is disposed on the edge of the lid (1) and can slide along the axial direction of the lid (1) to lock or release the pressure cooker lid. An operating component (5) is movably connected to the cover (1). The operating component (5) drives the first locking component (3) and the second locking component (4) to move, so that one of the first locking component (3) and the second locking component (4) is in a locked state and the other is in an unlocked state.

2. The pressure cooker lid according to claim 1, characterized in that, The operating component (5) is flipped and connected to the cover (1). The operating component (5) includes a main shaft (51), a first connecting part (52), and a second connecting part (53). The first connecting part (52) is eccentrically disposed with the main body shaft (51), and the first connecting part (52) cooperates with the first locking member (3) to rotate the first locking member (3); The second connecting part (53) is eccentrically disposed with the main shaft (51), and the second connecting part (53) cooperates with the second locking member (4) to move the second locking member (4) to slide along the axial direction of the cover (1).

3. The pressure cooker lid according to claim 2, characterized in that, The main shaft (51) extends above the first locking member (3), and the first connecting part (52) protrudes from one side of the main shaft (51) along its own radial direction.

4. The pressure cooker lid according to claim 3, characterized in that, Along a direction away from the main axis (51), at least one section of the first connecting portion (52) extends in an arc.

5. The pressure cooker lid according to claim 2, characterized in that, The second locking member (4) is located at one end of the main shaft (51), and the second connecting part (53) protrudes from one end of the main shaft (51) along its own axial direction.

6. The pressure cooker lid according to any one of claims 1-5, characterized in that, The pressure cooker lid also includes a lid tooth assembly (6), which is disposed on the outer periphery of the lid body (1) and fixedly connected to the lid body (1); The cap tooth assembly (6) includes at least two cap teeth (61), which protrude in a direction away from the axis of the cap body (1), and each cap tooth (61) is spaced apart around the axis of the cap body (1).

7. The pressure cooker lid according to claim 6, characterized in that, The cap tooth assembly (6) includes a fixing ring (62), which is sleeved on the outer periphery of the cap body (1) and fixedly connected to the cap body (1). The cap tooth (61) protrudes from the outer periphery of the fixing ring (62).

8. The pressure cooker lid according to claim 7, characterized in that, Above the fixing ring (62), the outer diameter of the cover (1) is not greater than the inner diameter of the fixing ring (62).

9. The pressure cooker lid according to claim 6, characterized in that, The outer periphery of the cover (1) is provided with a limiting protrusion (12), the cover tooth assembly (6) is located above the limiting protrusion (12), and the lower surface of the cover tooth assembly (6) abuts against the upper surface of the limiting protrusion (12).

10. The pressure cooker lid according to any one of claims 1-5, characterized in that, The lid (1) is provided with a vent (13), and the pressure cooker lid also includes a pressure limiting valve assembly (7), which includes: A pressure relief valve (71) is positioned opposite the vent (13) and is slidable along the axial direction of the vent (13) to open or close the vent (13); A stepped seat (72) is disposed above the cover (1), and the stepped seat (72) gradually increases or decreases in height along the circumferential direction of the pressure limiting valve (71); An operating handle (73) is connected to the pressure relief valve (71). The operating handle (73) protrudes radially from one side of the pressure relief valve (71). The operating handle (73) is rotatable about the axis of the vent (13) and engages with the stepped seat (72) so that the vent (13) remains open.

11. The pressure cooker lid according to any one of claims 1-5, characterized in that, The lid (1) is provided with a mounting hole (14), and the pressure cooker lid also includes a safety valve assembly (8), which includes: Safety valve (81), the safety valve (81) passing through the mounting hole (14); A support base (82) is disposed above the cover (1) and connects the cover (1) and the safety valve (81). The support base (82) is elastic. In its natural state, the safety valve (81) seals against the upper side of the cover (1) to close the mounting hole (14); When the pressure is too high, the safety valve (81) rises and opens the mounting hole (14), and the support (82) deforms away from the cover (1) along with the safety valve (81).

12. A pressure cooker, characterized in that, It includes a pot body and a pressure cooker lid as described in any one of claims 1-11, wherein the pressure cooker lid is movably connected to the pot body and can achieve a sealing fit with the pot body.

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