Electric pressure cooker

Abstract

The present invention provides an electric pressure cooker, comprising: a pot body for holding food to be cooked; a pot cover, which is arranged on the pot body and has an exhaust passage in the pot cover; a pressure limiting valve assembly, which comprises a pressure limiting valve body, a pressure regulating structure, a first elastic member and a second elastic member, wherein the pressure limiting valve body cooperates with the exhaust passage, the pressure regulating structure is located above the pressure limiting valve body, the first elastic member is arranged between the pressure limiting valve body and the pressure regulating structure, the second elastic member supports the pressure regulating structure, and when the pressure regulating structure moves downward, the first elastic member is compressed to change the pressure of the pressure limiting valve body blocking the exhaust passage. The technical solution of the present invention solves the problem of poor cooking diversity of electric pressure cookers in the prior art.

Description

Technical Field

[0001] The invention relates to an electric pressure cooker, and in particular to an improvement of an exhaust structure of an electric pressure cooker. Background Art

[0002] Electric pressure cookers are commonly used cooking appliances. A pressure limiting valve is provided in the lid of the electric pressure cooker, and the pressure limiting valve is used to limit the pressure in the cooker, thereby achieving pressurized cooking. However, most of the pressure limiting valves in the prior art can only achieve a certain pressure adjustment, and therefore cannot meet the cooking requirements of different ingredients, thereby making the cooking diversity of the electric pressure cooker poor. Summary of the invention

[0003] The main purpose of the present invention is to provide an electric pressure cooker to solve the problem of poor cooking diversity of the electric pressure cooker in the prior art.

[0004] In order to achieve the above-mentioned purpose, the present invention provides an electric pressure cooker, comprising: a pot body, for holding food to be cooked; a pot cover, which is arranged on the pot body and has an exhaust passage inside the pot cover; a pressure limiting valve assembly, which comprises a pressure limiting valve body, a pressure regulating structure, a first elastic member and a second elastic member, wherein the pressure limiting valve body cooperates with the exhaust passage, the pressure regulating structure is located above the pressure limiting valve body, the first elastic member is arranged between the pressure limiting valve body and the pressure regulating structure, the second elastic member supports the pressure regulating structure, and when the pressure regulating structure moves downward, the first elastic member is compressed to change the pressure of the pressure limiting valve body blocking the exhaust passage.

[0005] By applying the technical solution of the present invention, when the pressure regulating structure is moved downward, the two ends of the first elastic member abut against the pressure regulating structure and the pressure limiting valve body respectively, and are compressed. At this time, the pressure limiting valve body is subjected to a downward elastic force and increases the pressure applied to the exhaust channel, thereby adjusting the exhaust pressure of the electric pressure cooker. The above structure can steplessly adjust the pressure in the pot body, thereby meeting the cooking requirements of different ingredients and greatly enhancing the cooking diversity of the electric pressure cooker. Therefore, the technical solution of the present invention solves the problem of poor cooking diversity of the electric pressure cooker in the prior art.

[0006] Furthermore, there is a gap between the first elastic member and the pressure limiting valve body and / or the pressure regulating structure. When the pressure regulating structure is in the initial position supported by the second elastic member, the pressure limiting valve body blocks the exhaust channel by its own gravity. When the pressure regulating structure moves downward from the initial position, the two ends of the first elastic member respectively abut against the pressure regulating structure and the pressure limiting valve body, and the first elastic member is compressed to change the pressure of the pressure limiting valve body blocking the exhaust channel.

[0007] Furthermore, the first elastic member is sleeved outside the pressure-limiting valve body.

[0008] Furthermore, a positioning convex edge is provided on the outer side wall of the pressure limiting valve body, and the outer diameter of the positioning convex edge is larger than the diameter of the first elastic member. When the pressure regulating structure moves downward from the initial position, the lower end of the first elastic member abuts against the positioning convex edge.

[0009] Furthermore, the first elastic member is a spring.

[0010] Furthermore, a positioning hook is provided on the pressure regulating structure, and the positioning hook cooperates with the upper end of the first elastic member to fix the upper end of the first elastic member on the pressure regulating structure.

[0011] Furthermore, the second elastic member is sleeved outside the pressure-limiting valve body.

[0012] Furthermore, the second elastic member is a spring, and a diameter of the second elastic member is greater than an outer diameter of the positioning protrusion.

[0013] Furthermore, the pressure-limiting valve assembly also includes a valve seat, the exhaust passage is located in the valve seat, the upper end of the second elastic member abuts against the pressure regulating structure, and the lower end of the second elastic member abuts against the valve seat.

[0014] Furthermore, the pressure limiting valve assembly also includes a mounting cap, which is arranged on the valve seat. The valve seat and the mounting cap form a mounting cavity, and the pressure limiting valve body, the first elastic member, the second elastic member and the pressure regulating structure are arranged in the mounting cavity.

[0015] Furthermore, the pressure regulating structure includes a plate body and a push-up cap arranged on the plate body, a avoidance hole is arranged on the top wall of the mounting cap, the plate body is arranged in the mounting cap, and the push-up cap passes through the mounting cap through the avoidance hole.

[0016] Furthermore, a guide structure is provided between the pressure regulating structure and the mounting cap.

[0017] Furthermore, the guide structure includes: a guide rib, which is arranged on the plate body; a guide groove, which is arranged on the inner side wall of the mounting cap and extends along the central axis direction of the mounting cap, and the guide rib is embedded in the guide groove.

[0018] Furthermore, there are a plurality of guide ribs arranged along the circumference of the plate body, and a plurality of guide grooves arranged along the circumference of the mounting cap, and the plurality of guide ribs and the plurality of guide grooves are arranged in one-to-one correspondence.

[0019] Furthermore, a rotation positioning structure is provided between the valve seat and the mounting cap. When the mounting cap is installed, the mounting cap is rotated and fixed on the valve seat through the rotation positioning structure.

[0020] Furthermore, the rotational positioning structure includes: a first positioning rib, which is arranged on the outer side wall of the valve seat; a positioning groove, which is arranged on the side wall of the mounting cap, and the positioning groove includes a first section and a second section connected to each other, the first section extends in a horizontal direction, one end of the second section is connected to the first section, and the second end of the second section extends to the lower end of the mounting cap and forms an opening, and the first positioning rib is embedded in the positioning groove.

[0021] Furthermore, a second positioning rib is arranged on the upper surface and / or the lower surface of the first section.

[0022] Furthermore, a drainage hole communicating with the inner and outer sides of the valve seat is provided on the side wall of the valve seat.

[0023] Furthermore, a handle is provided on the upper portion of the pressure limiting valve body.

[0024] Furthermore, the handle portion includes a rod body and a gripping protrusion, the lower end of the rod body is connected to the pressure-limiting valve body, and the gripping protrusion is connected to the upper end of the rod body.

[0025] Furthermore, the pressure limiting valve body includes a shell and a valve core, the shell is provided with a mounting through hole, the valve core is arranged in the mounting through hole, a plug is provided at the lower end of the valve core, the plug blocks the exhaust channel, and the handle is connected to the upper end of the valve core.

[0026] Furthermore, a connecting hole is provided at the upper end of the valve core, and the lower end of the rod body is inserted into the connecting hole.

[0027] Furthermore, the connecting hole is a threaded hole, and the rod body is provided with a threaded section matching the threaded hole.

[0028] Furthermore, the electric pressure cooker also includes a driving structure and a transmission structure. The transmission structure is movably arranged in the pot cover. The transmission structure cooperates with the pressure regulating structure. The driving structure drives the transmission structure to move, and the transmission structure drives the pressure regulating structure to move downward from an initial position.

[0029] Furthermore, the transmission structure is a lever, the first end of the lever cooperates with the pressure regulating structure, the second end of the lever cooperates with the driving structure, and the driving structure drives the second end of the lever to swing.

[0030] Furthermore, the lever includes a first rod segment and a second rod segment connected to each other, the end of the first rod segment cooperates with the pressure regulating structure, the end of the second rod segment cooperates with the driving structure, and the material of the first rod segment is different from that of the second rod segment.

[0031] Furthermore, the first rod segment is made of metal, and the second rod segment is made of plastic.

[0032] Furthermore, the weight of the second end of the lever is greater than the weight of the first end of the lever, so that when the driving force of the driving structure does not act on the lever, the second end of the lever swings downward under the action of gravity.

[0033] Furthermore, the driving structure includes a driving motor and a rotating block, wherein the rotating block is connected to the motor shaft of the driving motor, and the driving motor can drive the rotating block to rotate, wherein an inclined surface is provided on the rotating block, and the second end of the lever cooperates with the inclined surface. When the rotating block rotates, the position of the second end of the lever on the inclined surface changes, so that the second end of the lever swings.

[0034] Furthermore, the inclined surface is a sector-shaped surface.

[0035] Furthermore, the electric pressure cooker also includes a lid opening structure, a stop-opening slide and a stop-opening valve arranged in the pot cover, the lid opening structure is connected to the stop-opening slide, and when the lid opening structure is rotated, the lid opening structure can drive the stop-opening slide to move, and the stop-opening valve is arranged on the moving trajectory of the stop-opening slide, and when the pressure in the pot body is greater than a preset value, the stop-opening valve is pushed to move upward and interfere with the stop-opening slide, so that the lid opening structure cannot be rotated to the lid opening position, wherein the electric pressure cooker also includes a cover plate, which is arranged on the stop-opening slide, and a limiting structure is arranged between the driving structure and the cover plate, and the limiting structure limits the moving range of the driving structure.

[0036] Furthermore, the rotating block is arranged above the cover plate, and the limiting structure includes a limiting rib and a limiting groove, the limiting rib is arranged on the upper surface of the cover plate, and the limiting groove is arranged on the surface of the rotating block facing the cover plate.

[0037] Furthermore, the limiting groove is an arc-shaped groove.

[0038] Furthermore, a accommodating chamber for accommodating the pressure-limiting valve assembly is provided in the pot cover, and a notch is provided on the side wall of the accommodating chamber. The first end of the lever extends into the accommodating chamber through the notch and cooperates with the pressure regulating structure. The electric pressure cooker also includes a sealing plate, which is provided with a mounting hole. The sealing plate is sleeved on the lever through the mounting hole, and the sealing plate is fixed on the notch. The center line of the mounting hole has a preset angle relative to the center line of the pressure-limiting valve assembly, so that when the lever is not subjected to the driving force of the driving structure, the first end of the lever swings upward under the action of the elastic force of the sealing plate, and the first end of the lever does not act on the pressure-limiting valve assembly.

[0039] Furthermore, the electric pressure cooker also includes a mounting plate, which is arranged at the notch, and a sealing plate is arranged on the mounting plate, wherein the mounting plate is provided with an avoidance notch for allowing the first end of the lever to pass through, a positioning convex edge is provided on the side of the mounting plate, and a mounting groove penetrating the sealing plate is provided on the sealing plate, the sealing plate and the mounting plate are stacked, and the positioning convex edge is bent outward after passing through the mounting groove and is fixed at the notch.

[0040] Furthermore, the pot cover includes an inner liner, a surface cover arranged on the inner liner, and an inner pot cover arranged below the inner liner, the exhaust channel is an exhaust pipe arranged on the inner pot cover, and the pressure limiting valve assembly is arranged on the inner pot cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0042] Figure 1 A schematic structural diagram of an electric pressure cooker according to an embodiment of the present invention is shown;

[0043] Figure 2 Shows Figure 1 Schematic diagram of the structure of a medium-sized electric pressure cooker with its lid opened;

[0044] Figure 3 Shows Figure 1 A schematic cross-sectional view of an inner pot cover of a medium-sized electric pressure cooker;

[0045] Figure 4 Shows Figure 3 The enlarged schematic diagram at A in the middle;

[0046] Figure 5 Shows Figure 1 Schematic diagram of the inner pot cover of a medium-sized electric pressure cooker;

[0047] Figure 6 Shows Figure 1 A schematic diagram of the structure of the pressure regulating structure of a medium-sized electric pressure cooker;

[0048] Figure 7 Shows Figure 6 A structural diagram of the medium voltage regulating structure from another perspective;

[0049] Figure 8 Shows Figure 1 A schematic diagram of the structure of the mounting cap of a medium-voltage pressure cooker;

[0050] Fig. 9 Shows Figure 8 A bottom view of the mounting cap;

[0051] Fig.10 Shows Figure 1 A schematic diagram of the structure of a pressure limiting valve body of a medium-sized electric pressure cooker;

[0052] Fig.11 Shows Figure 1 A schematic diagram of the structure of a valve seat of a medium-sized electric pressure cooker;

[0053] Fig.12 Shows Figure 1 Schematic diagram of the assembly of the valve seat and mounting cap of a medium-sized electric pressure cooker;

[0054] Fig.13 Shows Figure 1 A schematic diagram of the main view of the valve seat and valve cap of the medium-sized electric pressure cooker after assembly;

[0055] Fig.14 Shows Fig.13 The enlarged schematic diagram of point B in the middle;

[0056] Fig.15 Shows Figure 1 Schematic diagram of the installation and coordination of the installation cap and the pressure regulating structure of the medium-sized electric pressure cooker;

[0057] Fig.16 Shows Figure 1 A schematic cross-sectional view of the middle pressure limiting valve body;

[0058] Fig.17 Shows Figure 1 Schematic diagram of the exploded view of the lid of a medium-sized electric pressure cooker;

[0059] Fig.18 Shows Fig.17 The enlarged schematic diagram at C in the middle;

[0060] Fig.19 Shows Figure 1 A schematic diagram of the structure of the medium-voltage pressure cooker when the first end of the driving lever of the driving structure drives the cooker to swing downward;

[0061] Fig. 20 Shows Fig.19 The enlarged schematic diagram at D in the middle;

[0062] Fig.21 Shows Figure 1 A schematic diagram of the structure of a medium-sized electric pressure cooker when the second end of the lever is swung downward;

[0063] Fig. 22 Shows Fig.21 The enlarged schematic diagram at E in the middle;

[0064] Fig.23 Shows Figure 1 A schematic diagram of the transmission structure of a medium-voltage pressure cooker;

[0065] Fig.24 Shows Fig.23 A schematic structural diagram of a first rod segment and a second rod segment of a middle transmission structure;

[0066] Fig.25 Shows Figure 1 A schematic top view of the inner lining of a medium-sized electric pressure cooker;

[0067] Fig.26 Shows Fig.25 The enlarged schematic diagram at E in the middle;

[0068] Fig. 27 Shows Figure 1 A schematic diagram of the structure of a cover plate of a medium-sized electric pressure cooker;

[0069] Fig.28 Shows Figure 1 A schematic diagram of the structure of a rotating block of a medium-sized electric pressure cooker;

[0070] Fig.29 Shows Figure 1 A schematic diagram of the coordination of the driving motor, the rotating block and the cover plate of the medium-voltage pressure cooker; and

[0071] Fig.30 Shows Figure 1 Schematic diagram of the structure of the sealing plate and mounting plate of a medium-sized electric pressure cooker.

[0072] The above drawings include the following reference numerals:

[0073] 10. Pot body; 20. Pot cover; 21. Liner; 22. Surface cover; 23. Inner pot cover; 30. Exhaust channel; 40. Pressure limiting valve assembly; 41. Pressure limiting valve body; 411. Positioning convex edge; 412. Handle; 413. Shell; 414. Valve core; 415. Installation through hole; 416. Plug; 417. Connecting hole; 42. Pressure regulating structure; 421. Positioning hook; 422. Plate; 423. Push-up cap; 43. First elastic member; 44. Second elastic member; 45. Valve seat; 451. Drain hole; 46. Mounting cap; 461. Avoidance hole; 50. Mounting cavity; 60. Guide structure; 61. Guide convex rib; 62. Guide groove; 70. Rotation Positioning structure; 71, first positioning rib; 72, positioning groove; 721, first section; 722, second section; 73, second positioning rib; 80, driving structure; 81, driving motor; 82, rotating block; 821, inclined plane; 90, transmission structure; 91, first rod section; 92, second rod section; 100, cover opening structure; 200, anti-opening slide plate; 300, anti-opening valve; 400, cover plate; 500, limiting structure; 501, limiting rib; 502, limiting groove; 600, accommodating chamber; 601, notch; 700, sealing sheet; 701, mounting hole; 702, mounting groove; 800, mounting sheet; 801, avoidance notch; 802, positioning convex edge. DETAILED DESCRIPTION

[0074] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0075] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0076] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0077] like Figures 1 to 4 As shown, the electric pressure cooker of this embodiment includes a pot body 10, a pot cover 20 and a pressure limiting valve assembly 40. The pot body 10 is used to hold food to be cooked. The pot cover 20 is placed on the pot body 10, and an exhaust passage 30 is arranged in the pot cover 20. The pressure limiting valve assembly 40 includes a pressure limiting valve body 41, a pressure regulating structure 42, a first elastic member 43 and a second elastic member 44. Further, the pressure limiting valve body 41 cooperates with the exhaust passage 30, the pressure regulating structure 42 is located above the pressure limiting valve body 41, the first elastic member 43 is arranged between the pressure limiting valve body 41 and the pressure regulating structure 42, and the second elastic member 44 supports the pressure regulating structure 42. The pressure regulating structure 42 has an initial position, and when the second elastic member 44 makes the pressure regulating structure 42 located in the initial position, there is a gap between the first elastic member 43 and the pressure limiting valve body 41 and / or the pressure regulating structure 42. At this time, the pressure limiting valve body 41 blocks the exhaust passage 30 by its own gravity. When the pressure regulating structure 42 moves downward from the initial position, both ends of the first elastic member 43 abut against the pressure regulating structure 42 and the pressure limiting valve body 41 respectively, and the first elastic member 43 is compressed to change the pressure of the pressure limiting valve body 41 blocking the exhaust channel 30 .

[0078] In the technical solution of this embodiment, by moving the pressure regulating structure 42 downward, the compression amount of the first elastic member 43 can be changed, thereby changing the pressure applied by the first elastic member 43 to the pressure limiting valve body 41, and changing the exhaust pressure of the electric pressure cooker. Furthermore, by adjusting the moving position of the pressure regulating structure 42, the specific value of the exhaust pressure can be adjusted, thereby achieving the effect of stepless pressure regulation of the electric pressure cooker.

[0079] like Figure 4 and Figure 5As shown, in the technical solution of this embodiment, the first elastic member 43 is sleeved outside the pressure limiting valve body 41. Specifically, the upper end of the first elastic member 43 cooperates with the pressure regulating structure 42, and the lower end cooperates with the pressure limiting valve body 41. When the pressure regulating structure 42 moves downward, the first elastic member 43 is compressed and applies elastic force to the pressure limiting valve body 41 to change the exhaust pressure.

[0080] like Figure 4 and Fig.10 As shown, in the technical solution of this embodiment, a positioning convex edge 411 is provided on the outer side wall of the pressure limiting valve body 41, and the outer diameter of the positioning convex edge 411 is greater than the diameter of the first elastic member 43. When the pressure regulating structure 42 moves downward from the initial position, the lower end of the first elastic member 43 abuts against the positioning convex edge 411. Specifically, the positioning convex edge 411 is an annular convex edge, and because the outer diameter of the positioning convex edge 411 is greater than the diameter of the first elastic member 43, the lower end of the first elastic member 43 can abut against the positioning convex edge 411. Further, the above structure can make the first elastic member 43 uniformly apply downward elastic force to the pressure limiting valve body 41 in the circumferential direction, thereby preventing the pressure limiting valve body 41 from deflecting when it is pressurized. Preferably, the positioning convex edge 411 is arranged at the lower edge of the pressure limiting valve body 41, so that when the pressure regulating structure 42 moves downward, the lower end of the pressure limiting valve body 41 is subjected to force, so that the structure is more stable.

[0081] like Figure 5 As shown, in the technical solution of this embodiment, the first elastic member 43 is a spring. Specifically, the first elastic member 43 is a coil spring.

[0082] like Figure 4 and Figure 6 As shown, in the technical solution of this embodiment, a positioning hook 421 is provided on the pressure regulating structure 42, and the positioning hook 421 cooperates with the upper end of the first elastic member 43 so that the upper end of the first elastic member 43 is fixed on the pressure regulating structure 42. Preferably, there are three positioning hooks 421 arranged along the circumferential direction, and the hook portion of the positioning hook 421 is hooked on the upper end of the first elastic member 43. That is, when the second elastic member 44 supports the pressure regulating structure 42 and the upper end of the pressure regulating structure 42 is not subjected to force, the upper end of the first elastic member 43 is fixed on the pressure regulating structure 42, and there is a gap between the lower end and the positioning convex edge 411 of the pressure limiting valve body 41, that is, the first elastic member 43 does not act on the pressure limiting valve body 41.

[0083] like Figure 4 and Figure 5As described, in the technical solution of this embodiment, the second elastic member 44 is sleeved outside the pressure-limiting valve body 41. And preferably, the second elastic member 44 is a spring, and the diameter of the second elastic member 44 is greater than the outer diameter of the positioning convex edge 411. Specifically, the second elastic member 44 is sleeved outside the pressure-limiting valve body 41, and the lower end is in contact with the pot cover 20, that is, the second elastic member 44 does not contact with the pressure-limiting valve body 41 and does not act on the pressure-limiting valve body 41. When the upper end of the pressure regulating structure 42 is not subjected to force, the second elastic member 44 keeps the pressure regulating structure 42 in the initial position, and the lower end of the first elastic member 43 is not in contact with the positioning convex edge 411. When the upper end of the pressure regulating structure 42 is subjected to force and moves downward, the second elastic member 44 is compressed.

[0084] like Figure 5 and Fig.11 As shown, in the technical solution of this embodiment, the pressure limiting valve assembly 40 further includes a valve seat 45, the exhaust passage 30 is located in the valve seat 45, the upper end of the second elastic member 44 abuts against the pressure regulating structure 42, and the lower end of the second elastic member 44 abuts against the valve seat 45. Specifically, the valve seat 45 is a sleeve structure. The exhaust passage 30 is located in the valve seat 45.

[0085] like Figure 5 , Figure 8 and Fig.11 As shown, in the technical solution of this embodiment, the pressure-limiting valve assembly 40 also includes a mounting cap 46, and the mounting cap 46 is covered on the valve seat 45. The valve seat 45 and the mounting cap 46 form a mounting cavity 50, and the pressure-limiting valve body 41, the first elastic member 43, the second elastic member 44 and the pressure regulating structure 42 are arranged in the mounting cavity 50. Specifically, the lower end of the mounting cap 46 is open and is sleeved outside the valve seat 45. The side wall of the valve seat 45 and the side wall of the mounting cap 46 jointly limit the movement range of the pressure regulating structure 42, the first elastic member 43 and the second elastic member 44. Further, when the upper end of the pressure regulating structure 42 is not subjected to force, the second elastic member 44 applies an upward elastic force to the pressure regulating structure 42, and causes the pressure regulating structure 42 to abut against the top wall of the mounting cap 46.

[0086] like Figure 6 and Figure 7As shown, in the technical solution of this embodiment, the pressure regulating structure 42 includes a plate body 422 and a push-up cap 423 arranged on the plate body 422, a avoidance hole 461 is arranged on the top wall of the mounting cap 46, the plate body 422 is arranged in the mounting cap 46, and the push-up cap 423 passes through the mounting cap 46 through the avoidance hole 461. The above-mentioned positioning hook 421 is arranged on the lower surface of the plate body 422. Specifically, when the upper end of the pressure regulating structure 42 is not subjected to an external driving force, the mounting cap 46 passes through the avoidance hole 461 and is located on the outside of the mounting cap 46. At this time, the push-up cap 423 can be pressed downward to move the plate body 422 downward, so that the first elastic member 43 and the second elastic member 44 are compressed. Specifically, an exhaust port is arranged on the top wall of the mounting cap 46, and the plate body 422 is recessed inward corresponding to the position of the exhaust port and avoids the exhaust port, so that the exhaust port on the mounting cap 46 is always connected with the exhaust channel 30.

[0087] like Figure 6 , Figure 7 , Fig. 9 as well as Fig.15 As shown, in the technical solution of this embodiment, a guide structure 60 is provided between the pressure regulating structure 42 and the mounting cap 46. Specifically, the guide structure 60 enables the pressure regulating structure 42 to move in the up-down direction while preventing the pressure regulating structure 42 from rotating relative to the mounting cap 46.

[0088] like Figure 6 , Figure 7 , Fig. 9 as well as Fig.15 As shown, in the technical solution of this embodiment, the guide structure 60 includes a guide rib 61 and a guide groove 62. Among them, the guide rib 61 is arranged on the plate body 422. The guide groove 62 is arranged on the inner side wall of the mounting cap 46 and extends along the central axis direction of the mounting cap 46, and the guide rib 61 is embedded in the guide groove 62. Specifically, the guide rib 61 is arranged on the side wall of the plate body 422 and extends outward, and the guide groove 62 extends in the vertical direction. The above structure allows the plate body 422 to extend in the up and down direction, and the plate body 422 will not rotate relative to the mounting cap 46.

[0089] like Figure 6 , Figure 7 and Fig. 9 As shown, in the technical solution of this embodiment, the guide ribs 61 are multiple and arranged along the circumference of the plate body 422, and the guide grooves 62 are multiple and arranged along the circumference of the mounting cap 46, and the multiple guide ribs 61 and the multiple guide grooves 62 are arranged one by one. Specifically, there are three guide grooves 62 and three guide ribs 61.

[0090] like Figure 8 and Fig.11As shown, in the technical solution of this embodiment, a rotation positioning structure 70 is provided between the valve seat 45 and the mounting cap 46 . When the mounting cap 46 is installed, the mounting cap 46 is rotated and fixed on the valve seat 45 through the rotation positioning structure 70 .

[0091] like Figure 8 , Figures 11 to 13 As shown, in the technical solution of this embodiment, the rotation positioning structure 70 includes a first positioning rib 71 and a positioning groove 72. Among them, the first positioning rib 71 is arranged on the outer side wall of the valve seat 45. The positioning groove 72 is arranged on the side wall of the mounting cap 46. The positioning groove 72 includes a first section 721 and a second section 722 which are connected to each other, the first section 721 extends in the horizontal direction, one end of the second section 722 is connected to the first section 721, the second section 722 of the second section 722 extends to the lower end of the mounting cap 46 and forms an opening, and the first positioning rib 71 is embedded in the positioning groove 72. Specifically, when installing the positioning groove 72, first align the first positioning rib 71 with the lower end opening of the second section 722. Then move the mounting cap 46 downward and slide the first positioning rib 71 into the second section 722, then rotate the mounting cap 46 in the horizontal direction, and slide the first positioning rib 71 into the first section 721. Further, from Fig.11 It can be seen that the upper side of the valve seat 45 has a reduced diameter section, and the first positioning rib 71 is arranged on the outer side wall of the reduced diameter section. When the mounting cap 46 is installed, the mounting cap 46 is sleeved outside the reduced diameter section.

[0092] like Fig.13 and Fig.14 As shown, in the technical solution of this embodiment, a second positioning rib 73 is provided on the upper surface and / or the lower surface of the first section 721. Specifically, when the first positioning rib 71 is screwed into the first section 721 in the horizontal direction, it will pass through the second positioning rib 73 and give the user a sense of stuck, so that the user knows that the first positioning rib 71 has been screwed into the first section 721. At the same time, the second positioning rib 73 can also play a positioning effect on the first positioning rib 71.

[0093] like Fig.11 As shown, in the technical solution of this embodiment, a drain hole 451 is provided on the side wall of the valve seat 45. Specifically, the drain hole 451 runs through the side wall of the valve seat 45. Since a large amount of steam is generated in the exhaust passage 30 during exhaust, water may accumulate in the valve seat 45. When water accumulates in the valve seat 45, the accumulated water can be discharged through the drain hole 451 on the valve seat 45, thereby preventing condensed water from accumulating in the valve seat 45.

[0094] like Fig.10 and Fig.16As shown, in the technical solution of this embodiment, a handle portion 412 is provided on the upper portion of the pressure limiting valve body 41. Specifically, since the pressure limiting valve body 41 is conical, and steam will produce condensed water on the outer wall of the pressure limiting valve body 41, it is difficult for the user to grasp the outer wall of the pressure limiting valve body 41 when the pressure limiting valve body 41 needs to be removed for cleaning. This makes it difficult to remove the pressure limiting valve body 41. In this example, the handle portion 412 includes a rod body and a gripping protrusion connected to the top of the rod body, and the user can easily grasp the handle portion 412 and apply force upward to remove the pressure limiting valve body 41 from the valve seat 45.

[0095] Furthermore, if Fig.16 As shown, in the technical solution of this embodiment, the handle portion includes a rod body and a gripping convex portion, the lower end of the rod body is connected to the pressure-limiting valve body 41, and the gripping convex portion is connected to the upper end of the rod body. The pressure-limiting valve body 41 includes a housing 413 and a valve core 414, the housing 413 is provided with a mounting through hole 415, the valve core 414 is arranged in the mounting through hole 415, the lower end of the valve core 414 is provided with a plug 416, the plug 416 blocks the exhaust channel 30, and the handle portion 412 is connected to the upper end of the valve core 414. The upper end of the valve core 414 is provided with a connecting hole 417, and the lower end of the rod body is penetrated in the connecting hole 417. Preferably, the connecting hole 417 is a threaded hole, and the rod body is provided with a threaded section that matches the threaded hole. Of course, the handle portion 412 and the valve core 414 can also be connected together by welding or the like.

[0096] like Fig.17 As shown, in the technical solution of this embodiment, the electric pressure cooker further includes a driving structure 80 and a transmission structure 90. The transmission structure 90 is movably arranged in the pot cover 20, and the transmission structure 90 cooperates with the pressure limiting valve body 41. The driving structure 80 drives the transmission structure 90 to move, and the transmission structure 90 drives the pressure regulating structure 42 to move downward from the initial position. Specifically, when the transmission structure 90 moves downward, it contacts the push-up cap 423 of the pressure regulating structure 42, and presses and pushes the push-up cap 423 downward.

[0097] like Figures 19 to 23 As shown, in the technical solution of this embodiment, the transmission structure 90 is a lever, the first end of the lever cooperates with the pressure regulating structure 42, the second end of the lever cooperates with the driving structure 80, and the driving structure 80 drives the second end of the lever to swing. Fig.19 and Fig. 20 It can be seen that when the driving structure 80 does not drive the lever to swing, the pressure regulating structure 42 is in the initial position under the elastic force of the second elastic member 44. At this time, the lower end of the first elastic member 43 does not contact the pressure limiting valve body 41. Fig.21 and Fig. 22It can be seen that when the driving structure 80 drives the first end of the lever to swing downward, the pressure regulating structure 42 moves downward, and at the same time, the lower end of the first elastic member 43 contacts and is compressed with the pressure limiting valve body 41, thereby changing the exhaust pressure. Further, the downward movement distance of the pressure regulating structure 42 can be adjusted by adjusting the specific swing angle of the lever, thereby achieving a stepless pressure regulation effect.

[0098] like Fig.24 As shown, in the technical solution of this embodiment, the lever includes a first rod segment 91 and a second rod segment 92 connected to each other, the end of the first rod segment 91 cooperates with the pressure regulating structure 42, and the end of the second rod segment 92 cooperates with the driving structure 80, and the material of the first rod segment 91 is different from the material of the second rod segment 92. Specifically, since the exhaust passage 30 has a high temperature when exhausting, the first rod segment 91 needs to be made of a high temperature resistant material. The second rod segment 92 cooperates with the driving structure 80, so the second rod segment 92 needs to be made of a relatively smooth material with less friction resistance. Preferably, the material of the first rod segment 91 is metal, and the material of the second rod segment 92 is POM. The two can be connected together by conventional connection methods such as screws, bonding, and welding.

[0099] like Fig. 20 and Fig. 22 As shown, in the technical solution of this embodiment, the weight of the second end of the lever is greater than the weight of the first end of the lever, so that when the driving force of the driving structure 80 does not act on the lever, the second end of the lever swings downward under the action of gravity. Fig. 20 As shown, when the driving force of the driving structure 80 does not act on the lever, due to the second end of the lever ( Fig. 20 The weight of the left end of the lever is heavier, so the second end of the lever automatically swings downward, and the first end automatically swings upward and does not contact the pressure regulating structure 42. The above structure makes it possible for the lever to not contact the pressure regulating structure 42 when the pressure regulating operation is not required, thereby preventing the normal exhaust from being affected. At the same time, there is no need to set a reset mechanism of the lever in the pot cover 20, thereby saving space and reducing costs.

[0100] like Figure 25 to Figure 26As shown, in the technical solution of this embodiment, the driving structure 80 includes a driving motor 81 and a rotating block 82, the rotating block 82 is connected to the motor shaft of the driving motor 81, and the driving motor 81 can drive the rotating block 82 to rotate, wherein the rotating block 82 is provided with an inclined surface 821, and the second end of the lever cooperates with the inclined surface 821. When the rotating block 82 rotates, the position of the second end of the lever on the inclined surface 821 changes, so that the second end of the lever swings. Specifically, when the driving motor 81 rotates, the driving motor 81 drives the rotating block 82 to rotate, so that the relative position of the second end of the lever on the inclined surface 821 changes. When the contact position of the inclined surface 821 and the lever rises, the second end of the lever is driven to move upward, so that the lever is driven to swing. When the driving motor 81 rotates in the opposite direction, the second end of the lever swings downward and resets under the action of gravity.

[0101] Preferably, in the technical solution of this example, the inclined surface 821 is a sector-shaped surface.

[0102] like Figure 1 , Figure 2 , Figure 25 to Figure 29 As shown, in the technical solution of this embodiment, the electric pressure cooker also includes a cover opening structure 100, a stop opening slide 200 and a stop opening valve 300 arranged in the pot cover 20, and the cover opening structure 100 is connected with the stop opening slide 200. When the cover opening structure 100 is rotated, the cover opening structure 100 can drive the stop opening slide 200 to move. The stop opening valve 300 is arranged on the moving track of the stop opening slide 200. When the pressure in the pot body 10 is greater than the preset value, the stop opening valve 300 is pushed up and moves upward and interferes with the stop opening slide 200, so that the cover opening structure 100 cannot be rotated to the cover opening position, wherein the electric pressure cooker also includes a cover plate 400, which is covered on the stop opening slide 200, and a limiting structure 500 is arranged between the driving structure 80 and the cover plate 400, and the limiting structure 500 limits the moving range of the driving structure 80. Specifically, the above-mentioned cover opening structure 100 includes a rotating handle located on the upper surface of the pot cover 20, and a rotating rod arranged in the pot cover 20, and the two are coaxially connected. The anti-opening slide plate 200 can move in a straight line direction ( Fig.25The pot body 10 is provided with a long hole, and the stop opening slide plate 200 is provided with a connecting column. The connecting column is inserted into the long hole. When the user turns the lid opening handle, the stop opening slide plate 200 is driven and moves in a straight line direction. The stop opening valve 300 is a columnar float structure. When the pressure in the pot body 10 is greater than the preset value, the stop opening valve 300 is lifted up. When the pressure in the pot body 10 is less than the preset value, the stop opening valve 300 falls down by its own gravity. Therefore, when the pressure in the pot body 10 is greater than the preset value, the stop opening valve 300 is lifted up, and the end of the stop opening slide plate 200 is blocked by the stop opening valve 300 and cannot continue to move, so the user cannot continue to turn the lid opening handle, so that the pot cover 20 cannot be unlocked relative to the pot body 10, and has a stop opening effect. The above-mentioned cover plate 400 is covered on the stop opening slide plate 200 and is used to limit the stop opening slide plate 200. The above-mentioned limiting structure 500 is arranged between the cover plate 400 and the rotating block 82, and limits the rotating range of the rotating block 82. The arrangement of the above-mentioned limiting structure 500 can save space in the pot cover 20.

[0103] like Figure 26 to Figure 29 As shown, in the technical solution of this embodiment, the rotating block 82 is arranged above the cover plate 400, and the limiting structure 500 includes a limiting rib 501 and a limiting groove 502. The limiting rib 501 is arranged on the upper surface of the cover plate 400, and the limiting groove 502 is arranged on the surface of the rotating block 82 facing the cover plate 400. Specifically, the length of the limiting groove 502 is the rotation range of the rotating block 82. And preferably, the limiting groove 502 is an arc groove, so as to prevent the rotating block 82 from being stuck during the rotation process.

[0104] like Fig.18 , Fig. 20 and Fig. 22 As shown, in the technical solution of this embodiment, a housing chamber 600 for accommodating the pressure limiting valve assembly 40 is provided in the pot cover 20, and a notch 601 is provided on the side wall of the housing chamber 600. The first end of the lever extends into the housing chamber 600 through the notch 601 and cooperates with the pressure regulating structure 42. The electric pressure cooker also includes a sealing sheet 700, on which a mounting hole 701 is provided, and the sealing sheet 700 is sleeved outside the lever through the mounting hole 701, and the sealing sheet 700 is fixed on the notch 601. The center line of the mounting hole 701 has a preset angle relative to the center line of the pressure limiting valve assembly 40, so that when the lever is not subjected to the driving force of the driving structure 80, the first end of the lever swings upward under the action of the elastic force of the sealing sheet 700, and the first end of the lever does not act on the pressure limiting valve assembly 40. Specifically, a protruding structure is provided in the pot cover 20, and the interior of the protruding structure is hollow and the lower opening part is connected to the pot body 10, thereby forming the housing chamber 600. A notch 601 is provided on the side wall of the protruding structure. from Fig. 20It can be seen that when the sealing sheet 700 is not subjected to external force and is in a free state, the center line of the mounting hole 701 is inclined. Therefore, when the lever is not subjected to the driving force of the driving structure 80, the first end of the lever is subjected to an upward elastic force, and the lever is moved from Fig. 22 The position is restored to Fig. 20 The above-mentioned arrangement of the mounting hole 701 has the effect of assisting the lever to return to its original position.

[0105] like Fig.30 As shown, in the technical solution of this embodiment, the electric pressure cooker also includes a mounting sheet 800, which is arranged at the notch 601. The sealing sheet 700 is arranged on the mounting sheet 800. Among them, the mounting sheet 800 is provided with an avoidance notch 801 for the first end of the lever to pass through, the side of the mounting sheet 800 is provided with a positioning convex edge 802, and the sealing sheet 700 is provided with a mounting groove 702 that penetrates the sealing sheet 700. The sealing sheet 700 and the mounting sheet 800 are arranged in a stacked manner, and the positioning convex edge 802 passes through the mounting groove 702 and then bends outward and is fixed at the notch 601. Specifically, since the sealing sheet 700 is made of soft rubber material, the sealing sheet needs to be fixed at the notch 601 with the help of the mounting sheet 800. Specifically, during installation, the positioning convex edge 802 passes through the mounting groove 702 and then bends outward and is fixed at the notch 601. The positioning convex edge 802 can be placed and fixed at the notch 601 by welding, clamping, etc.

[0106] like Figures 1 to 3 As shown, in the technical solution of this embodiment, the pot cover 20 includes an inner lining 21, a surface cover 22 covering the inner lining 21, and an inner pot cover 23 arranged below the inner lining 21, the exhaust channel 30 is an exhaust pipe arranged on the inner pot cover 23, and the pressure limiting valve assembly 40 is arranged on the inner pot cover 23. Specifically, the above-mentioned driving structure 80 and transmission structure 90 are arranged on the inner lining 21.

[0107] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0108] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0109] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0110] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric pressure cooker, characterized in that: include: A pot body (10) is used to hold food to be cooked, and a heating device is arranged inside the pot body (10); A pot cover (20) is arranged on the pot body (10), and an exhaust passage (30) is arranged in the pot cover (20); A pressure limiting valve assembly (40), the pressure limiting valve assembly (40) comprising a pressure limiting valve body (41), a pressure regulating structure (42), a first elastic member (43) and a second elastic member (44), wherein the pressure limiting valve body (41) cooperates with the exhaust passage (30), the pressure regulating structure (42) is located above the pressure limiting valve body (41), the first elastic member (43) is arranged between the pressure limiting valve body (41) and the pressure regulating structure (42), and the second elastic member (44) supports the pressure regulating structure (42). When the pressure regulating structure (42) moves downward, the first elastic member (43) is compressed to change the pressure at which the pressure-limiting valve body (41) blocks the exhaust passage (30).

2. The electric pressure cooker according to claim 1, characterized in that: There is a gap between the first elastic member (43) and the pressure-limiting valve body (41) and / or the pressure regulating structure (42). When the pressure regulating structure (42) is in an initial position supported by the second elastic member (44), the pressure-limiting valve body (41) blocks the exhaust passage (30) by its own weight. When the pressure regulating structure (42) moves downward from the initial position, the two ends of the first elastic member (43) respectively abut against the pressure regulating structure (42) and the pressure-limiting valve body (41), and the first elastic member (43) is compressed to change the pressure at which the pressure-limiting valve body (41) blocks the exhaust passage (30).

3. The electric pressure cooker according to claim 2, characterized in that: The first elastic member (43) is sleeved outside the pressure-limiting valve body (41).

4. The electric pressure cooker according to claim 3, characterized in that: A positioning protrusion (411) is provided on the outer side wall of the pressure-limiting valve body (41), and the outer diameter of the positioning protrusion (411) is greater than the diameter of the first elastic member (43). When the pressure regulating structure (42) moves downward from the initial position, the lower end of the first elastic member (43) abuts against the positioning protrusion (411).

5. The electric pressure cooker according to claim 3 or 4, characterized in that: The first elastic member (43) is a spring.

6. The electric pressure cooker according to claim 5, characterized in that: The pressure regulating structure (42) is provided with a positioning hook (421), and the positioning hook (421) cooperates with the upper end of the first elastic member (43) so that the upper end of the first elastic member (43) is fixed on the pressure regulating structure (42).

7. The electric pressure cooker according to claim 4, characterized in that: The second elastic member (44) is sleeved outside the pressure-limiting valve body (41).

8. The electric pressure cooker according to claim 7, characterized in that: The second elastic member (44) is a spring, and the diameter of the second elastic member (44) is greater than the outer diameter of the positioning protrusion (411).

9. The electric pressure cooker according to claim 7 or 8, characterized in that: The pressure-limiting valve assembly (40) further comprises a valve seat (45), the exhaust passage (30) is located in the valve seat (45), the upper end of the second elastic member (44) abuts against the pressure regulating structure (42), and the lower end of the second elastic member (44) abuts against the valve seat (45).

10. The electric pressure cooker according to claim 9, characterized in that: The pressure-limiting valve assembly (40) further comprises a mounting cap (46), wherein the mounting cap (46) is mounted on the valve seat (45), and a mounting cavity (50) is formed between the valve seat (45) and the mounting cap (46), and the pressure-limiting valve body (41), the first elastic member (43), the second elastic member (44) and the pressure regulating structure (42) are arranged in the mounting cavity (50).

11. The electric pressure cooker according to claim 10, characterized in that: The pressure regulating structure (42) comprises a plate body (422) and a push-up cap (423) arranged on the plate body (422); a avoidance hole (461) is arranged on the top wall of the mounting cap (46); the plate body (422) is arranged in the mounting cap (46); and the push-up cap (423) passes through the mounting cap (46) through the avoidance hole (461).

12. The electric pressure cooker according to claim 11, characterized in that: A guide structure (60) is provided between the pressure regulating structure (42) and the mounting cap (46).

13. The electric pressure cooker according to claim 12, characterized in that: The guide structure (60) comprises: A guide rib (61) is provided on the plate body (422); A guide groove (62) is provided on the inner side wall of the mounting cap (46) and extends along the central axis direction of the mounting cap (46), and the guide rib (61) is embedded in the guide groove (62).

14. The electric pressure cooker according to claim 13, characterized in that: The guide ribs (61) are multiple and arranged along the circumference of the plate body (422), and the guide grooves (62) are multiple and arranged along the circumference of the mounting cap (46). The multiple guide ribs (61) and the multiple guide grooves (62) are arranged in a one-to-one correspondence.

15. The electric pressure cooker according to claim 10, characterized in that: A rotational positioning structure (70) is provided between the valve seat (45) and the mounting cap (46). When the mounting cap (46) is installed, the mounting cap (46) is rotated, and the mounting cap (46) is fixed on the valve seat (45) through the rotational positioning structure (70).

16. The electric pressure cooker according to claim 15, characterized in that: The rotation positioning structure (70) comprises: a first positioning rib (71), wherein the first positioning rib (71) is arranged on an outer side wall of the valve seat (45); A positioning groove (72) is arranged on the side wall of the mounting cap (46), the positioning groove (72) comprises a first section (721) and a second section (722) connected to each other, the first section (721) extends in a horizontal direction, one end of the second section (722) is connected to the first section (721), the second end of the second section (722) extends to the lower end of the mounting cap (46) and forms an opening, and the first positioning rib (71) is embedded in the positioning groove (72).

17. The electric pressure cooker according to claim 16, characterized in that: A second positioning rib (73) is provided on the upper surface and / or the lower surface of the first section (721).

18. The electric pressure cooker according to claim 9, characterized in that: A drainage hole (451) communicating with the inner and outer sides of the valve seat (45) is provided on the side wall of the valve seat (45).

19. The electric pressure cooker according to claim 1, characterized in that: A handle (412) is provided on the upper portion of the pressure limiting valve body (41).

20. The electric pressure cooker according to claim 19, characterized in that: The handle portion comprises a rod body and a gripping convex portion, the lower end of the rod body is connected to the pressure limiting valve body (41), and the gripping convex portion is connected to the upper end of the rod body.

21. The electric pressure cooker according to claim 20, characterized in that: The pressure-limiting valve body (41) comprises a shell (413) and a valve core (414); the shell (413) is provided with a mounting through hole (415); the valve core (414) is arranged in the mounting through hole (415); a plug (416) is provided at the lower end of the valve core (414); the plug (416) blocks the exhaust channel (30); and the handle (412) is connected to the upper end of the valve core (414).

22. The electric pressure cooker according to claim 21, characterized in that: The upper end of the valve core (414) is provided with a connecting hole (417), and the lower end of the rod body is inserted into the connecting hole (417).

23. The electric pressure cooker according to claim 22, characterized in that: The connecting hole (417) is a threaded hole, and the rod body is provided with a threaded section that matches the threaded hole.

24. The electric pressure cooker according to claim 2, characterized in that: The electric pressure cooker further comprises a driving structure (80) and a transmission structure (90); the transmission structure (90) is movably arranged in the pot cover (20); the transmission structure (90) cooperates with the pressure regulating structure (42); the driving structure (80) drives the transmission structure (90) to move, and the transmission structure (90) drives the pressure regulating structure (42) to move downward from an initial position.

25. The electric pressure cooker according to claim 24, characterized in that: The transmission structure (90) is a lever, the first end of the lever cooperates with the pressure regulating structure (42), the second end of the lever cooperates with the driving structure (80), and the driving structure (80) drives the second end of the lever to swing.

26. The electric pressure cooker according to claim 25, characterized in that: The lever comprises a first rod segment (91) and a second rod segment (92) which are connected to each other, the end of the first rod segment (91) cooperates with the pressure regulating structure (42), the end of the second rod segment (92) cooperates with the driving structure (80), and the material of the first rod segment (91) and the material of the second rod segment (92) are different.

27. The electric pressure cooker according to claim 26, characterized in that: The material of the first rod section (91) is metal, and the material of the second rod section (92) is plastic.

28. The electric pressure cooker according to claim 25, characterized in that: The weight of the second end of the lever is greater than the weight of the first end of the lever, so that when the driving force of the driving structure (80) does not act on the lever, the second end of the lever swings downward under the action of gravity.

29. The electric pressure cooker according to claim 25, characterized in that: The driving structure (80) comprises a driving motor (81) and a rotating block (82), wherein the rotating block (82) is connected to the motor shaft of the driving motor (81), and the driving motor (81) can drive the rotating block (82) to rotate, wherein an inclined surface (821) is provided on the rotating block (82), and the second end of the lever cooperates with the inclined surface (821), and when the rotating block (82) rotates, the position of the second end of the lever on the inclined surface (821) changes, so that the second end of the lever swings.

30. The electric pressure cooker according to claim 29, characterized in that: The inclined surface (821) is a sector-shaped surface.

31. The electric pressure cooker according to claim 29, characterized in that: The electric pressure cooker further comprises a cover opening structure (100), a stop opening slide plate (200) and a stop opening valve (300) arranged in the cooker cover (20); the cover opening structure (100) is connected to the stop opening slide plate (200); when the cover opening structure (100) is rotated, the cover opening structure (100) can drive the stop opening slide plate (200) to move; the stop opening valve (300) is arranged on the moving track of the stop opening slide plate (200); and the pressure in the cooker body (10) is greater than a preset value. When the stop valve (300) is pushed upward and interferes with the stop slide (200), the cover opening structure (100) cannot be rotated to the cover opening position, wherein the electric pressure cooker also includes a cover plate (400), the cover plate (400) is covered on the stop slide (200), and a limiting structure (500) is arranged between the driving structure (80) and the cover plate (400), and the limiting structure (500) limits the movement range of the driving structure (80).

32. The electric pressure cooker according to claim 31, characterized in that: The rotating block (82) is arranged above the cover plate (400), and the limiting structure (500) comprises a limiting rib (501) and a limiting groove (502), wherein the limiting rib (501) is arranged on the upper surface of the cover plate (400), and the limiting groove (502) is arranged on the surface of the rotating block (82) facing the cover plate (400).

33. The electric pressure cooker according to claim 32, characterized in that: The limiting groove (502) is an arc-shaped groove.

34. The electric pressure cooker according to claim 25, characterized in that: The pot cover (20) is provided with a receiving cavity (600) for receiving the pressure-limiting valve assembly (40), a notch (601) is provided on the side wall of the receiving cavity (600), the first end of the lever extends into the receiving cavity (600) through the notch (601) and cooperates with the pressure regulating structure (42), the electric pressure cooker further comprises a sealing sheet (700), a mounting hole (701) is provided on the sealing sheet (700), the sealing sheet (700) is sleeved on the lever through the mounting hole (701), the sealing sheet (700) is fixed on the notch (601), the center line of the mounting hole (701) has a preset angle with respect to the center line of the pressure-limiting valve assembly (40), so that when the lever is not subjected to the driving force of the driving structure (80), the first end of the lever swings upward under the action of the elastic force of the sealing sheet (700), and the first end of the lever does not act on the pressure-limiting valve assembly (40).

35. The electric pressure cooker according to claim 34, characterized in that: The electric pressure cooker further comprises a mounting sheet (800), wherein the mounting sheet (800) is arranged at the notch (601), and the sealing sheet (700) is arranged on the mounting sheet (800), wherein the mounting sheet (800) is provided with an avoidance notch (801) for allowing the first end of the lever to pass through, a positioning convex edge (802) is provided on the side edge of the mounting sheet (800), and the sealing sheet (700) is provided with a mounting groove (702) penetrating the sealing sheet (700), the sealing sheet (700) and the mounting sheet (800) are arranged in an overlapping manner, and the positioning convex edge (802) passes through the mounting groove (702) and then bends outward and is fixed at the notch (601).

36. The electric pressure cooker according to claim 1, characterized in that: The pot cover (20) comprises an inner lining (21), a surface cover (22) arranged on the inner lining (21), and an inner pot cover (23) arranged below the inner lining (21); the exhaust passage (30) is an exhaust pipe arranged on the inner pot cover (23); and the pressure limiting valve assembly (40) is arranged on the inner pot cover (23).

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