Pressure cooker cover and pressure cooker

Abstract

The invention 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] The present application relates to the technical field of kitchen appliances, and in particular to a pressure cooker cover and a pressure cooker. Background Art

[0002] A pressure cooker is a common cooking appliance. Its main function is to increase the heating temperature by increasing the air pressure in the pot, thereby increasing the heating speed. The pressure cooker is mainly composed of a pressure cooker lid and a pot body, and the pressure cooker lid and the pot body are fixed to each other by means of buckles and the like. Usually, in order to ensure the safety of the pressure cooker, it is necessary to increase the pressure when the pressure cooker lid is in place, and open the pressure cooker lid after the pressure in the pressure cooker is completely released. However, when using the pressure cooker, users sometimes make mistakes, which may cause danger during the use of the pressure cooker. Summary of the invention

[0003] The present application provides a pressure cooker cover and a pressure cooker, so as to improve the use safety of the pressure cooker.

[0004] The first aspect of the present application provides a pressure cooker cover, comprising:

[0005] Cover body;

[0006] A check valve is provided through the cover body and can be raised and lowered along the cover body;

[0007] A first locking member is disposed on one side of the stop valve, the first locking member is rotatably connected to the cover body, and can be rotated in a direction close to or away from the stop valve to lock or release the stop valve;

[0008] A second locking member is disposed on the edge of the cover body and is capable of sliding along the axial direction of the cover body to lock or release the pressure cooker cover;

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

[0010] The pressure cooker cover provided by the present application includes a cover body, a stop valve, a first locking member, a second locking member and an operating member; the stop valve is arranged in the cover body and can be lifted and lowered along the cover body; the first locking member is arranged on one side of the stop valve, the first locking member is rotatably connected to the cover body, and can be rotated in a direction close to or away from the stop valve to lock or release the stop valve; the second locking member is arranged on the edge of the cover body and can slide along the axial direction of the cover body to lock or release the pressure cooker cover; the operating member is movably connected to the cover body, and the operating member drives the first locking member and the second locking member to move, so that one of the first locking member and the second locking member is in a locked state and the other is in a released state. The linkage between the first locking member and the second locking member is realized by the operating member, which can ensure that the pressure cooker cover can be installed and disassembled in a pressure relief state, and can ensure that the pressure cooker is pressurized in a state where the pressure cooker cover is locked, thereby ensuring the safety of the pressure cooker.

[0011] Optionally, the operating member is flip-connected to the cover body, and the operating member includes a main shaft, a first connecting portion, and a second connecting portion; the first connecting portion is eccentrically arranged with the main shaft, and the first connecting portion cooperates with the first locking member to drive the first locking member to rotate; the second connecting portion is eccentrically arranged with the main shaft, and the second connecting portion cooperates with the second locking member to drive the second locking member to slide along the axial direction of the cover body. When the operating member flips around the main shaft, the first connecting portion and the second connecting portion both swing around the main shaft. It is only necessary to reasonably set the distance that the first connecting portion and the second connecting portion deviate from the main shaft to change the swing amplitude of the first connecting portion and the second connecting portion, so that the first locking member and the second locking member respectively meet the expected movement stroke.

[0012] Optionally, the main shaft extends to the upper side of the first locking member, and the first connecting portion is convexly arranged on 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 cover body, so as to reduce the vibration or movement of the first locking member along the axial direction of the cover body, and increase the stability and reliability of the first locking member; and when the main shaft and the first locking member rotate, the main shaft and the surface of the first locking member move relative to each other in a rolling manner, thereby reducing the friction resistance of the first locking member and making the operation more labor-saving; in addition, the main shaft of the operating member directly limits the first locking member, and there is no need to set a special limiting structure or component for the first locking member, thereby reducing the number of components and simplifying the overall structure of the pressure cooker cover.

[0013] Optionally, along the direction away from the main body axis, at least one section of the first connection portion extends in an arc, so that the direction of the force between the first connection portion and the first locking member is as perpendicular as possible to the extension direction or tangent direction of the first connection portion, thereby making the movement of the first connection portion more labor-saving and smooth, and preventing the first connection portion and the first locking member from getting stuck.

[0014] Optionally, the second locking member is located at one end of the main shaft, and the second connecting portion is protruding from one end of the main shaft along its own axial direction, so that the size of the second connecting portion can be reduced as much as possible while ensuring reliable cooperation between the second connecting portion and the second locking member.

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

[0016] Optionally, the cover teeth assembly includes a fixing ring, the fixing ring is sleeved on the outer circumference of the cover body and fixedly connected to the cover body, and the cover teeth are convexly arranged on the outer circumference of the fixing ring. The cover teeth are connected to each other into a whole through the fixing ring, and the fixing ring simultaneously realizes the installation and fixation of the cover teeth, so as to reduce the number of parts of the pressure cooker cover and improve the assembly efficiency of the pressure cooker cover.

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

[0018] Optionally, a limiting protrusion is provided on the periphery of the cover body, the cover tooth assembly is located above the limiting protrusion, and the lower surface of the cover tooth assembly abuts against the upper surface of the limiting protrusion. The limiting protrusion supports the cover tooth assembly to prevent the cover tooth assembly from bending or sliding in a direction close to the pot body, causing the cover teeth and pot teeth to loosen, affecting the safety and reliability of the pressure cooker.

[0019] Optionally, the cover body is provided with an exhaust hole, and the pressure cooker cover further includes: a pressure limiting valve, facing the exhaust hole and capable of sliding along the axial direction of the exhaust hole to open or close the exhaust hole; a stepped seat, arranged above the cover body, the stepped seat gradually rises or gradually decreases along the circumferential height of the pressure limiting valve; an operating handle, connected to the pressure limiting valve, the operating handle protruding from one side of the pressure limiting valve along the radial direction of the pressure limiting valve, the operating handle being able to rotate around the axis of the exhaust hole and overlapped with the stepped seat, so that the exhaust hole remains in an open state. After cooking is finished, the user lifts the pressure limiting valve through the operating handle to achieve exhaust and pressure relief, the operating handle can avoid the ejection area of ​​the exhaust hole to prevent scalding the user, by overlapping the operating handle with the support seat, after the user releases the operating handle, the exhaust hole can still maintain the exhaust state, thereby improving the convenience and safety of use, and by overlapping the operating handle with platforms of different heights, the opening size of the exhaust hole can be adjusted, thereby controlling the exhaust speed of the pressure limiting valve as needed, preventing liquid from overflowing during the exhaust process, and improving the user experience of the pressure cooker. In addition, the operating handle is used to support the pressure-limiting valve, and there is no need to provide a special supporting structure on the pressure-limiting valve, which can simplify the structure of the pressure-limiting valve.

[0020] Optionally, the cover body is provided with a mounting hole, and the pressure cooker cover further includes: a safety valve, which is provided through the mounting hole; a support seat, which is provided above the cover body, connecting the cover body and the safety valve, and the support seat is elastic; in a natural state, the safety valve and the upper side of the cover body are sealed and cooperated to close the mounting hole; when the pressure is too high, the safety valve rises and opens the mounting hole, and the support seat deforms in a direction away from the cover body along with the safety valve. The lifting stroke of the support seat is limited by the deformation of the support seat, so that the movement of the safety valve is more stable, and the safety valve and other parts can be prevented from popping out under the impact of high-pressure gas, thereby improving the safety of the pressure cooker cover. In addition, after the pressure in the pot is reduced to a normal range, the support seat can automatically restore the deformation, so that the safety valve closes the mounting hole, without the need to replace parts, thereby reducing the use cost and maintenance cost of the pressure cooker.

[0021] The second aspect of the present application provides a pressure cooker, which includes a cooker body and any one of the pressure cooker lids provided in the present application, wherein the pressure cooker lid is movably connected to the cooker body and can be sealed with the cooker body. The linkage between the first locking member and the second locking member is realized by the operating member, so that the pressure cooker lid can be installed and removed in a pressure-releasing state, and the pressure cooker can be pressurized in a state where the pressure cooker lid is locked, thereby ensuring the safety of the pressure cooker.

[0022] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a pot body provided in an embodiment of the present application;

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

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

[0026] Figure 4 It is a partial structural schematic diagram of the operating member being in the first position;

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

[0028] Figure 6 It is a partial structural schematic diagram of the operating member being in the second position;

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

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

[0031] Fig. 9 for Figure 8 A schematic cross-sectional structure diagram of a pressure limiting valve assembly of a pressure cooker cover is shown;

[0032] Fig.10 for Figure 8 A schematic cross-sectional structure diagram of a safety valve assembly of a pressure cooker cover;

[0033] Fig.11 for Figure 8 The schematic diagram of the cross-sectional structure of the cover head of the pressure cooker lid is shown.

[0034] Reference numerals:

[0035] 10-Pressure cooker lid;

[0036] 20-pot body;

[0037] 201-pot teeth;

[0038] 202-locking groove;

[0039] 1-cover body;

[0040] 11-accommodating tank;

[0041] 12-limiting protrusion;

[0042] 13- Exhaust hole;

[0043] 14-Mounting hole;

[0044] 15-groove;

[0045] 16- boss;

[0046] 17-connecting column;

[0047] 2-Stop valve;

[0048] 3- first locking member;

[0049] 31-first guide groove;

[0050] 4- second locking member;

[0051] 41- extension;

[0052] 42- second guide groove;

[0053] 5-operating parts;

[0054] 51-main body axis;

[0055] 52- first connecting portion;

[0056] 53- second connecting portion;

[0057] 6-covering tooth assembly;

[0058] 61-cover teeth;

[0059] 62-fixing ring;

[0060] 63- annular cover;

[0061] 7-pressure limiting valve assembly;

[0062] 71-pressure limiting 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-connection part;

[0070] 8-Safety valve assembly;

[0071] 81-safety valve;

[0072] 811-seal;

[0073] 812-installation department;

[0074] 813-limiting slot;

[0075] 82-support seat;

[0076] 821-Card slot;

[0077] 9-Hijab;

[0078] 91-activity buckle;

[0079] 92-unbuttoning part.

[0080] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0081] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0082] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0083] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0084] like Figure 1 and Figure 2As shown, the embodiment of the present application provides a pressure cooker, which includes a pot body 20 and a pressure cooker cover 10. The pressure cooker cover 10 is movably connected to the pot body 20 and can be sealed with the pot body 20 so that high pressure can be generated in the pot to meet the requirements of high-pressure cooking. Among them, the inner wall of the pot body 20 can be convexly provided with a plurality of pot teeth 201, and each pot tooth 201 is arranged at intervals along the circumference of the pot body 20; the outer wall of the pressure cooker cover 10 can be convexly provided with cover teeth 61, and each cover tooth 61 is arranged at intervals along the circumference of the pressure cooker cover 10. When the pressure cooker cover 10 needs to be covered on the pot body 20, the cover teeth 61 are directly opposite to the intervals between the pot teeth 201, and the pressure cooker cover 10 is moved from top to bottom; when the pressure cooker cover 10 is moved into place, the pressure cooker cover 10 is rotated so that the cover teeth 61 stop below the pot teeth 201, thereby realizing the installation and fixation of the pressure cooker cover 10.

[0085] like Figure 2 and Figure 3 As shown, in some embodiments, the pressure cooker cover 10 includes a cover body 1 and a cover thread assembly 6, that is, the cover thread 61 constitutes the cover thread assembly 6. The cover thread assembly 6 is arranged on the outer periphery of the cover body 1 and is fixedly connected to the cover body 1, that is, the cover thread assembly 6 and the cover body 1 are processed and formed separately, and are connected to each other into a whole by welding or riveting, so as to simplify the structure of the cover body 1, reduce the processing difficulty of the cover body 1, and improve the production efficiency and production quality of the pressure cooker cover 10.

[0086] Further, the cover teeth assembly 6 includes a fixing ring 62. The fixing ring 62 is sleeved on the outer periphery of the cover body 1 and fixedly connected to the cover body 1, and the cover teeth 61 are convexly arranged on the outer periphery of the fixing ring 62. The cover teeth 61 and the fixing ring 62 are integrally formed, and each cover tooth 61 is connected to each other into a whole through the fixing ring 62, and the fixing ring 62 simultaneously realizes the installation and fixation of each cover tooth 61, so as to reduce the number of parts of the pressure cooker cover 10 and improve the assembly efficiency of the pressure cooker cover 10. It can be understood that in other embodiments, each cover tooth 61 can also be connected to the cover body 1 separately.

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

[0088] Furthermore, the cover tooth assembly 6 also includes an annular cover 63, which is arranged above the fixing ring 62 and is detachably connected to the fixing ring 62 (for example, connected using fasteners such as screws). The annular cover 63 serves as the external form of the cover tooth assembly 6, thereby improving the appearance and integrity of the pressure cooker cover 10.

[0089] Furthermore, a limiting protrusion 12 is provided on the outer periphery of the cover body 1, and the limiting protrusion 12 protrudes from the outer surface of the cover body 1. 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. The limiting protrusion 12 supports the cover tooth assembly 6, preventing the cover tooth assembly 6 from bending or sliding in the direction close to the pot body 20, resulting in loosening of the fit between the cover teeth 61 and the pot teeth 201, affecting the safety and reliability of the pressure cooker.

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

[0091] like Figure 4-Figure 7 As shown, in some embodiments, the pressure cooker cover 10 further includes a check valve 2, which is disposed through the cover body 1 and can be raised and lowered along the cover body 1. When the check valve 2 rises, the pressure cooker cover 10 forms a sealed state, and a high pressure can be formed in the cooker; when the check valve 2 falls, the pressure cooker cover 10 forms a pressure relief state, and the pressure in the cooker is released.

[0092] Further, the pressure cooker cover 10 also includes a first locking member 3, which is arranged in a plate shape. The first locking member 3 is arranged on one side of the stop valve 2 along the radial direction, and the first locking member 3 is rotatably connected to the cover body 1, and can be rotated in a direction close to or away from the stop valve 2 to lock or release the stop valve 2. Specifically, when the first locking member 3 rotates in a direction close to the stop valve 2, the first locking member 3 can lock the stop valve 2, so that the stop valve 2 cannot rise, thereby keeping the pressure cooker cover 10 in a pressure relief state; when the first locking member 3 rotates in a direction away from the stop valve 2, the first locking member 3 can release the stop valve 2, so that the stop valve 2 can rise freely, thereby allowing the pressure cooker cover 10 to form a sealed state and realize high-pressure cooking. The movement direction of the first locking member 3 is substantially perpendicular to the movement direction of the stop valve 2, which can improve the stability of the first locking member 3 and prevent the two from interacting with each other, resulting in a change in the state of the first locking member 3.

[0093] Further, the pressure cooker cover 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 arranged at the edge of the cover body 1, and can slide along the axial direction of the cover body 1 to lock or release the pressure cooker cover 10. Specifically, when the cover teeth 61 and the pot teeth 201 are in place, the second locking member 4 is directly opposite to the locking groove 202, and the second locking member 4 can slide in the direction close to the pot body 20 and snap into the locking groove 202, thereby locking the pressure cooker cover 10 and the pot body 20 with each other, so that the pressure cooker cover 10 and the pot body 20 cannot rotate relative to each other, ensuring that the pressure cooker cover 10 and the pot body 20 maintain a reliable connection state, and preventing the pressure cooker cover 10 from accidentally loosening or falling off during use; when the second locking member 4 slides in the direction away from the pot body 20, the second locking member 4 can release the locking of the pressure cooker cover 10 and the pot body 20, so that the pressure cooker cover 10 and the pot body 20 can rotate freely, and the pressure cooker cover 10 can be installed and removed. The movement direction of the second locking member 4 is substantially perpendicular to the rotation direction of the pressure cooker cover 10 , which can improve the stability of the second locking member 4 and prevent the two from interacting with each other, causing the state of the second locking member 4 to change.

[0094] Furthermore, a connecting column 17 may be provided on the top of the pressure cooker cover 10, and the first locking member 3 is rotatably connected to the connecting column 17. The second locking member 4 is provided with a plate-shaped extension portion 41, and the extension portion 41 is connected to the connecting column 17. The same connecting column 17 simultaneously plays a role in installing and guiding the first locking member 3 and the second locking member 4, which can simplify the overall structure of the pressure cooker cover 10 and improve the compactness of the structure of the pressure cooker cover 10.

[0095] Further, the pressure cooker cover 10 also includes an operating member 5, which can be arranged on one side of the connecting column 17. The operating member 5 is movably connected to the cover body 1, and a part of the operating member 5 is exposed outside the pressure cooker cover 10, so that the user can apply external force to the operating member 5. The operating member 5 drives the first locking member 3 and the second locking member 4 to move, so that one of the first locking member 3 and the second locking member 4 is in a locked state and the other is in a released state. The linkage of the first locking member 3 and the second locking member 4 is achieved by the operating member 5, which can ensure that the pressure cooker cover 10 is installed and disassembled in a pressure relief state, and can also ensure that the pressure cooker is pressurized in a state where the pressure cooker cover 10 is locked, thereby ensuring the safety of the pressure cooker.

[0096] Specifically, the operating member 5 can be slidably connected to the cover body 1, or the operating member 5 can be rotatably connected to the cover body 1, etc. The operating member 5 has a first position and a second position. When the operating member 5 is in the first position, the first locking member 3 is in a locked state, and the second locking member 4 is in a released state, so that the pressure cooker cover 10 is in a pressure relief state, and the pressure cooker cover 10 can be rotated on the pot body 20, so that the pressure cooker cover 10 can be installed and disassembled as needed. When the operating member 5 is in the second position, the second locking member 4 is in a locked state, and the first locking member 3 is in a released state, so that the pressure cooker cover 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 in the pressure cooker as needed to meet the high pressure cooking requirements. When the operating member 5 is in the second position and high pressure is generated in the pot, the check valve 2 rises, and the check valve 2 forms a stop limit for the first locking member 3, so that the operating member 5 cannot move to the first position. That is to say, under high-pressure cooking, the first locking member 3 cannot be switched to the locked state, and the second locking member 4 cannot be switched to the released state, thereby ensuring that the pressure cooker cover 10 cannot be removed under high-pressure conditions, thereby ensuring the safe use of the pressure cooker cover 10.

[0097] In one embodiment, the operating member 5 is flipped and connected to the cover body 1, and the operating member 5 includes a main shaft 51, a first connecting portion 52 and a second connecting portion 53, so that the overall structure is simpler and more compact. The operating member 5 flips around the main shaft 51 to change the angle between the operating member 5 and the cover body 1; the first connecting portion 52 is eccentrically arranged with the main shaft 51, and the first connecting portion 52 cooperates with the first locking member 3 to drive the first locking member 3 to rotate; the second connecting portion 53 is eccentrically arranged with the main shaft 51, and the second connecting portion 53 cooperates with the second locking member 4 to drive the second locking member 4 to slide along the axial direction of the cover body 1. It can be seen that when the operating member 5 flips around the main shaft 51, the first connecting portion 52 and the second connecting portion 53 both swing around the main shaft 51. It is only necessary to reasonably set the distance of the first connecting portion 52 and the second connecting portion 53 away from the main shaft 51 to change the swing amplitude of the first connecting portion 52 and the second connecting portion 53, so that the first locking member 3 and the second locking member 4 respectively meet the expected movement stroke.

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

[0099] Further, the main shaft 51 extends to the top of the first locking member 3, and the first connecting portion 52 is convexly arranged on one side of the main shaft 51 along its own radial direction, that is, the lower surface of the main shaft 51 and the upper surface of the first connecting portion 52 abut against each other or leave a small gap, and the first connecting portion 52 is arranged from top to bottom in the first locking member 3. The main shaft 51 plays a limiting role on the first locking member 3 along the axial direction of the cover body 1, so as to reduce the vibration or movement of the first locking member 3 along the axial direction of the cover body 1, and increase the stability and reliability of the first locking member 3. Moreover, when the main shaft 51 and the first locking member 3 rotate, the main shaft 51 and the surface of the first locking member 3 move relative to each other in a rolling manner, thereby reducing the friction resistance of the first locking member 3 and making the operation more labor-saving. In addition, the main shaft 51 of the operating member 5 directly limits the first locking member 3, and there is no need to set 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 cover 10.

[0100] Furthermore, along the direction away from the main body axis 51, at least one section of the first connection portion 52 extends in an arc. This allows the direction of the force between the first connection portion 52 and the first locking member 3 to be as perpendicular as possible to the extension direction or tangent direction of the first connection portion 52, thereby making the movement of the first connection portion 52 more labor-saving and smooth, and preventing the first connection portion 52 from getting stuck with the first locking member 3. It can be understood that in other embodiments, along the direction away from the main body axis 51, the first connection portion 52 can extend in a straight line.

[0101] Furthermore, the second locking member 4 is located at one end of the main shaft 51, and the second connecting portion 53 is convexly arranged at one end of the main shaft 51 along its own axial direction, which can ensure that the second connecting portion 53 and the second locking member 4 form a reliable fit while reducing the size of the second connecting portion 53 as much as possible. Specifically, the main shaft 51 only rotates, and the second locking member 4 only moves along the axial direction of the cover body 1, so that during the movement of the main shaft 51 and the second locking member 4, the distance between the second locking member 4 and the main shaft 51 along the axial direction of the main shaft 51 remains unchanged, so the fitting depth between the second connecting portion 53 and the second locking member 4 always remains unchanged, so that there is no need to set too much fitting margin between the second connecting portion 53 and the second locking member 4, and the size of the second connecting portion 53 is effectively reduced.

[0102] like Figure 8 and Fig. 9As shown, in some embodiments, the pressure cooker cover 10 further includes a pressure limiting valve assembly 7, and the pressure limiting valve assembly 7 includes a pressure limiting valve 71. The cover body 1 is provided with an exhaust hole 13, and the pressure limiting valve 71 is directly opposite to the exhaust hole 13, and can slide along the axial direction of the exhaust hole 13 to open or close the exhaust hole 13, thereby limiting the maximum pressure in the pot, meeting the high pressure requirement of the cooking process, and the exhaust pressure relief requirement after the cooking is completed. Specifically, when the pressure limiting valve 71 closes the exhaust hole 13, a sealed state is formed in the pot, so that the pressure in the pot can be increased to meet the high-pressure cooking requirements; when the pressure limiting valve 71 opens the exhaust hole 13, a pressure relief state is formed in the pot, and the gas in the pot is quickly discharged from the exhaust hole 13, which prevents the pressure in the pot from being too high during the cooking process on the one hand, and achieves exhaust pressure relief after the cooking is completed on the other hand.

[0103] Furthermore, the pressure limiting valve assembly 7 further includes a stepped seat 72 and an operating handle 73. The stepped seat 72 is disposed above the cover body 1, and the stepped seat 72 rises and falls along the circumference of the pressure limiting valve 71, thereby forming at least two platforms of different heights around the pressure limiting valve 71. The operating handle 73 is connected to the pressure limiting valve 71, and protrudes from one side of the pressure limiting valve 71 along the radial direction of the pressure limiting valve 71. After cooking is finished, the user lifts the pressure limiting valve 71 by holding the operating handle 73 to achieve exhaust and pressure relief. The operating handle 73 can avoid the ejection area of ​​the exhaust hole 13 to prevent scalding the user. The operating handle 73 can rotate around the axis of the exhaust hole 13 and overlap the stepped seat 72 to keep the exhaust hole 13 open. That is, after the user releases the operating handle 73, the exhaust hole 13 can still maintain the exhaust state, which improves the convenience and safety of use. In addition, by overlapping the operating handle 73 on platforms of different heights, the opening size of the exhaust hole 13 can be adjusted, thereby controlling the exhaust speed of the pressure limiting valve 71 as needed, preventing liquid from overflowing during the exhaust process, and improving the user experience of the pressure cooker. In addition, the operating handle 73 is used to support the pressure limiting valve 71, and there is no need to set a special support structure on the pressure limiting valve 71, which can simplify the structure of the pressure limiting valve 71.

[0104] Specifically, the stepped seat 72 can be directly connected to the cover body 1, or indirectly connected to the cover body 1 through other components, as long as the stepped seat 72 is located above the cover body 1 and the stepped seat 72 is raised and lowered along the circumferential direction of the pressure limiting valve 71. When the stepped seat 72 is directly connected to the cover body 1, the stepped seat 72 can be integrally formed on the surface of the cover body 1, or the stepped seat 72 can be fixed to the surface of the cover body 1 by bonding or screws.

[0105] Furthermore, the operating handle 73 and the pressure limiting valve 71 are configured as two independent components, and a connecting portion 731 may be provided at one end of the operating handle 73 facing the pressure limiting valve 71, and the connecting portion 731 is sleeved on the pressure limiting valve 71 and forms a detachable connection with the pressure limiting valve 71, so that the operating handle 73 and the pressure limiting valve 71 are connected to each other to form a whole, so as to simplify the structure of the pressure limiting valve 71 and improve the processing accuracy of the pressure limiting valve 71. In addition, the operating handle 73 can also be made of heat-insulating material, which can not only reduce the weight of the operating handle 73, but also avoid overheating of the operating handle 73 and burns. It can be understood that in other embodiments, the operating handle 73 and the pressure limiting valve 71 can also be integrally formed.

[0106] Specifically, when the operating handle 73 and the pressure limiting valve 71 are configured as two independent components, the pressure limiting valve 71 and the operating handle 73 are relatively fixed in the axial direction to ensure that the pressure limiting valve 71 can be raised and lowered synchronously with the operating handle 73 to adjust the opening of the exhaust hole 13. The pressure limiting valve 71 and the operating handle 73 can be relatively fixed in the circumferential direction, that is, the pressure limiting 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 limiting valve 71, that is, the operating handle 73 rotates alone, and the pressure limiting valve 71 only rises and falls in the axial direction with the operating handle 73.

[0107] Further, the pressure limiting valve 71 includes a sealing portion 711 and a guide rod 712, the guide rod 712 is arranged through the exhaust hole 13 and forms an annular gap with the exhaust hole 13, and the sealing portion 711 is located above the exhaust hole 13 to open or close the annular gap. The exhaust hole 13 serves as a guide structure of the pressure limiting valve 71, which can not only improve the relative position accuracy of the pressure limiting valve 71 and the exhaust hole 13, ensure that the pressure limiting valve 71 can accurately close the exhaust hole 13, but also make a part of the pressure limiting valve 71 sink inside the cover body 1, thereby reducing the overall height of the pressure limiting valve 71 and improving the compactness of the overall structure of the pressure cooker cover 10. It can be understood that in other embodiments, a special guide structure can also be provided on the surface of the cover body 1.

[0108] Furthermore, a conical surface or an arc surface may be provided on the side of the sealing portion 711 facing the exhaust hole 13, and a sealing fit is formed with the exhaust hole 13 through the conical surface or the arc surface. On the one hand, the sealing area can be reduced and the reliability of the sealing fit can be increased; on the other hand, it can play the role of automatic centering to prevent the pressure limiting valve 71 from deviating from the exhaust hole 13 and affecting the sealing effect.

[0109] Furthermore, the sealing portion 711 and the guide rod 712 are integrally formed. This can reduce processing errors, improve the accuracy of the pressure limiting valve 71 itself, and reduce the number of parts and components, thereby reducing production costs. It is understandable that in other embodiments, the sealing portion 711 and the guide rod 712 can also be configured as two separate components, and are connected to each other into a whole by means of threaded fitting or the like.

[0110] Furthermore, the pressure limiting valve 71 includes a weight portion 713, the weight portion 713 is located below (i.e., inside) the cover body 1, and the weight portion 713 is connected to the guide rod 712. By arranging the weight portion 713 on the inside of the cover body 1, the weight of the pressure limiting valve 71 is increased, and the volume of the pressure limiting valve 71 exposed outside the cover body 1 can be reduced, thereby further improving the compactness of the structure of the pressure cooker cover 10 and improving the appearance of the pressure cooker cover 10.

[0111] Furthermore, the counterweight 713 can be configured as a circular columnar structure with a larger diameter and a smaller height, so as to minimize the distance that the counterweight 713 extends downward, and prevent the liquid or foam in the pot from contacting the counterweight 713, thereby causing problems such as contamination or weight change of the counterweight 713. It can be understood that in other embodiments, the counterweight 713 can also be configured in other shapes as needed, such as a cone or polygonal column.

[0112] Specifically, the counterweight 713 is sleeved on the outer periphery of the guide rod 712, and an axial fixing structure such as a buckle, a retaining spring or a nut can be provided below the counterweight 713 to provide axial support for the counterweight 713 so that the counterweight 713 can be stably installed on the guide rod 712. In addition, the counterweight 713 is detachably connected to the guide rod 712, which can facilitate the disassembly and cleaning of the pressure limiting valve 71.

[0113] Furthermore, a gap is provided between the top surface of the counterweight portion 713 and the lower surface of the cover body 1 to provide the pressure-limiting valve 71 with an axial movement stroke along the exhaust hole 13, thereby avoiding interference between the counterweight portion 713 and the cover body 1, which may cause the pressure-limiting valve 71 to fail to normally open the exhaust hole 13. The counterweight portion 713 can stop at the lower surface of the cover body 1, and play an axial limiting role on the pressure-limiting valve 71, so as to prevent the pressure-limiting valve 71 from detaching from the valve body and falling off.

[0114] Furthermore, at least one of the top surface of the counterweight portion 713 and the lower surface of the cover body 1 is provided with an exhaust protrusion 7131, and the number of the exhaust protrusions 7131 is not less than two. The exhaust protrusions 7131 are arranged at intervals around the axis of the counterweight portion 713, and an exhaust gap is formed between adjacent exhaust protrusions 7131 to prevent the counterweight portion 713 and the cover body 1 from fitting together and closing the exhaust hole 13, thereby affecting the normal discharge of gas.

[0115] Specifically, the exhaust protrusion 7131 can be configured in any appropriate structure such as a convex point or a strip. When the exhaust protrusion 7131 is configured in a strip, the exhaust protrusion 7131 can extend in the radial direction of the counterweight 713, or the exhaust protrusion 7131 can also extend in the circumferential direction of the counterweight 713.

[0116] like Figure 8 and Fig.10As shown, the pressure cooker cover 10 also includes a safety valve assembly 8, and the safety valve assembly 8 includes a safety valve 81. The cover body 1 is provided with a mounting hole 14, and the safety valve 81 is penetrated through the mounting hole 14. In a natural state, the safety valve 81 closes the mounting hole 14, and the exhaust hole 13 is opened by the pressure limiting valve 71 to realize exhaust and pressure relief. When the exhaust hole 13 is blocked or other abnormalities occur and cannot be exhausted normally, the pressure in the pot will increase rapidly. When the pressure is too high, the safety valve 81 opens the mounting hole 14, and exhausts and releases pressure through the mounting hole 14, thereby playing a safety protection role to prevent the pressure in the pot from being too high and causing dangers such as explosion.

[0117] Furthermore, the safety valve assembly 8 also includes an elastic support seat 82, which is arranged above the cover body 1, connecting the cover body 1 and the safety valve 81, so as to realize the installation and fixation of the safety valve 81. In the natural state, the safety valve 81 and the upper side of the cover body 1 are sealed (for example, conical surface seal, etc.) to close the installation hole 14; when the pressure is too high, the safety valve 81 rises to open the installation hole 14, and the support seat 82 is deformed in the direction away from the cover body 1 along with the safety valve 81. The lifting stroke of the support seat 82 is limited by the deformation of the support seat 82, so that the movement of the safety valve 81 is more stable, and the safety valve 81 and other parts can be prevented from popping out under the impact of high-pressure gas, thereby improving the safety of the pressure cooker cover 10. In addition, after the pressure in the pot is reduced to the normal range, the support seat 82 can automatically restore the deformation, so that the safety valve 81 closes the installation hole 14, without the need to replace parts, thereby reducing the use cost and maintenance cost of the pressure cooker.

[0118] Furthermore, the safety valve 81 is provided with a seal 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 seal 811 to reduce the fitting accuracy requirements between the safety valve 81 and the cover body 1 and reduce production costs.

[0119] Furthermore, a mounting portion 812 is convexly provided at the bottom of the safety valve 81, and the sealing member 811 is sleeved on the mounting portion 812. The mounting portion 812 is penetrated through the mounting hole 14 to form a radial limit for the sealing member 811; an annular limit groove 813 is provided on the outer periphery of the mounting portion 812, and the sealing member 811 is installed in the limit groove 813 to form an axial limit for the sealing member 811; the sealing member 811 elastically presses against the upper side of the cover body 1, thereby realizing the sealing cooperation between the sealing member 811 and the mounting hole 14.

[0120] Further, the support seat 82 is configured as a thin sheet structure extending in the radial direction of the cover body 1, and the support seat 82 can be bent and deformed in the thickness direction thereof and has elasticity. The support seat 82 is stacked and arranged on one side of the cover body 1 to reduce the overall thickness of the pressure cooker cover 10, improve the compactness of the overall structure of the pressure cooker cover 10, and reduce the overall volume of the pressure cooker cover 10. For example, the support seat 82 can be configured as a strip sheet structure extending in the radial direction of the cover body 1, or the support seat 82 can be configured as a circular sheet structure, etc. It can be understood that in other embodiments, elastic members such as springs can also be arranged in the support seat 82 to make the support seat 82 as a whole elastic.

[0121] Specifically, the support seat 82 can be stacked above the cover body 1, or the support seat 82 can be stacked below the cover body 1. The support seat 82 and the cover body 1 can be connected to each other in a detachable manner such as screws or buckles, or in a non-detachable manner such as integral molding. Similarly, the support seat 82 and the safety valve 81 can be connected to each other in a detachable manner such as screws or buckles, or in a non-detachable manner such as integral molding.

[0122] Furthermore, the support seat 82 is stacked above the cover body 1, and a groove 15 is provided on the top of the cover body 1. The support seat 82 is arranged in the groove 15 to reduce the overall height of the cover body 1, thereby reducing the overall volume of the pressure cooker cover 10 and improving the compactness of the pressure cooker cover 10 structure.

[0123] like Figure 8 and Fig.11 As shown, the pressure cooker cover 10 further includes a cover head 9, and the user lifts the pressure cooker cover 10 by holding the cover head 9. The cover head 9 covers the groove 15, so that the support seat 82, the safety valve 81 and other components are hidden inside the pressure cooker cover 10, thereby improving the appearance of the pressure cooker cover 10. The cover head 9 is detachably connected to the cover body 1 or the support seat 82 to facilitate the maintenance or replacement of internal components such as the safety valve 81.

[0124] Specifically, a movable buckle 91 may be provided at one end of the cover head 9 facing the cover body 1, and a slot 821 may be provided at the cover body 1 or the support seat 82. In a natural state, the movable buckle 91 and the slot 821 are locked with each other, and the cover head 9 is stably mounted and fixed to the cover body 1; when the user applies an external force to the movable buckle 91, the movable buckle 91 and the slot 821 are disengaged, and the cover head 9 can be disassembled and removed. The movable buckle 91 is connected to a release portion 92, and at least a portion of the release portion 92 is exposed to the outside of the cover head 9. By driving the movable buckle 91 to be disengaged from the slot 821 through the release portion 92, the operation can be made more convenient and labor-saving, thereby improving the convenience of operation.

[0125] Furthermore, the exhaust hole 13 is arranged outside the area of ​​the groove 15. On the one hand, the exhaust hole 13 only needs to penetrate the lid body 1 with a smaller thickness, which can reduce the axial length of the exhaust hole 13 and reduce the risk of blockage of the exhaust hole 13; on the other hand, the gas is discharged on the exposed surface of the lid body 1 to prevent the liquid generated by the condensation of the gas from remaining inside the pressure cooker cover 10, which affects the cleanliness of the pressure cooker cover 10.

[0126] Among them, the cover body 1 can be provided with structures such as a boss 16 around the exhaust hole 13, which can not only improve the local strength of the cover body 1 and prevent the edge of the exhaust hole 13 from being damaged such as deformation or cracking, but also form a high-precision mating surface to improve the mating accuracy of the pressure limiting valve 71 and the exhaust hole 13.

[0127] Furthermore, the stepped seat 72 is integrally formed at the edge of the cover head 9, and the stepped seat 72 is connected to the upper surface of the cover body 1 through the cover head 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 head 9 is generally made of heat-insulating material, the stepped seat 72 is integrally formed with the cover head 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 only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pressure cooker cover, characterized in that: include: Cover body (1); A check valve (2) is provided through the cover body (1) and can be raised and lowered along the cover body (1); A first locking member (3) is arranged on one side of the stop valve (2), the first locking member (3) is rotatably connected to the cover body (1), and can be rotated in a direction close to or away from the stop valve (2) to lock or release the stop valve (2); A second locking member (4) is arranged on the edge of the cover body (1) and is capable of sliding along the axial direction of the cover body (1) to lock or release the pressure cooker cover; An operating member (5) is movably connected to the cover body (1), and the operating member (5) drives the first locking member (3) and the second locking member (4) to move, so that one of the first locking member (3) and the second locking member (4) is in a locked state and the other is in a released state.

2. The pressure cooker cover according to claim 1, characterized in that: The operating member (5) is flipped and connected to the cover body (1), and the operating member (5) comprises a main shaft (51), a first connecting portion (52) and a second connecting portion (53); The first connecting portion (52) is eccentrically arranged with respect to the main body shaft (51), and the first connecting portion (52) cooperates with the first locking member (3) to drive the first locking member (3) to rotate; The second connecting portion (53) is eccentrically arranged with respect to the main body shaft (51), and the second connecting portion (53) cooperates with the second locking member (4) to drive the second locking member (4) to slide along the axial direction of the cover body (1).

3. The pressure cooker cover according to claim 2, characterized in that: The main body shaft (51) extends to the upper part of the first locking member (3), and the first connecting portion (52) is protrudingly arranged on one side of the main body shaft (51) along its own radial direction.

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

5. The pressure cooker cover 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 portion (53) is protruding from one end of the main shaft (51) along its own axial direction.

6. The pressure cooker cover according to any one of claims 1 to 5, characterized in that: The pressure cooker cover also includes a cover thread assembly (6), wherein the cover thread assembly (6) is arranged on the outer periphery of the cover body (1) and is fixedly connected to the cover body (1); The cover teeth assembly (6) comprises at least two cover teeth (61), wherein the cover teeth (61) protrude in a direction away from the axis of the cover body (1), and the cover teeth (61) are spaced apart and distributed around the axis of the cover body (1).

7. The pressure cooker cover according to claim 6, characterized in that: The cover tooth assembly (6) comprises a fixing ring (62), the fixing ring (62) is sleeved on the outer periphery of the cover body (1) and fixedly connected to the cover body (1), and the cover tooth (61) is protruding from the outer periphery of the fixing ring (62).

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

9. The pressure cooker cover according to claim 6, characterized in that: A limiting protrusion (12) is provided on the outer periphery of the cover body (1), 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 cover according to any one of claims 1 to 5, characterized in that: The cover body (1) is provided with an exhaust hole (13), and the pressure cooker cover further comprises a pressure limiting valve assembly (7), and the pressure limiting valve assembly (7) comprises: A pressure limiting valve (71) facing the exhaust hole (13) and capable of sliding along the axial direction of the exhaust hole (13) to open or close the exhaust hole (13); A stepped seat (72) is arranged above the cover body (1), and the stepped seat (72) gradually increases or decreases along the circumferential height of the pressure limiting valve (71); An operating handle (73) is connected to the pressure limiting valve (71), the operating handle (73) protrudes from one side of the pressure limiting valve (71) along the radial direction of the pressure limiting valve (71), and the operating handle (73) can rotate around the axis of the exhaust hole (13) and overlap the stepped seat (72) to keep the exhaust hole (13) in an open state.

11. The pressure cooker cover according to any one of claims 1 to 5, characterized in that: The cover body (1) is provided with a mounting hole (14), and the pressure cooker cover further comprises a safety valve assembly (8), and the safety valve assembly (8) comprises: A safety valve (81), wherein the safety valve (81) is inserted into the mounting hole (14); A support seat (82), the support seat (82) being arranged above the cover body (1) and connecting the cover body (1) and the safety valve (81), the support seat (82) being elastic; In a natural state, the safety valve (81) seals and cooperates with the upper side of the cover body (1) to close the mounting hole (14); When the pressure is too high, the safety valve (81) rises to open the mounting hole (14), and the support seat (82) deforms in a direction away from the cover body (1) along with the safety valve (81).

12. A pressure cooker, characterized in that: The pressure cooker comprises a pot body and a pressure cooker cover according to any one of claims 1 to 11, wherein the pressure cooker cover is movably connected to the pot body and can achieve sealing cooperation with the pot body.

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