An electric pressure cooker with multi-stage pressure full boiling cooking
By designing a multi-stage pressure full boiling cooking system in an electric pressure cooker, using elastic valve core components and drive components to achieve low-pressure and high-pressure cooking, the problem of single pressure section of the existing electric pressure cooker is solved and the flexibility of the pot is improved.
Patent Information
- Application Number
- CN202420692683.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The existing electric pressure cooker has a single pressure section and cannot meet the cooking needs of users for different ingredients.
An electric pressure cooker with multi-stage pressure full boiling cooking is designed. Low-pressure and high-pressure full boiling cooking is achieved by setting the pot body, exhaust valve shell, elastic valve core assembly, driving assembly and pressure transfer member.
This design allows the electric pressure cooker to fully boil under low pressure and high pressure, meets the cooking needs of different ingredients and improves the flexibility of the pot.
Smart Images
Figure CN222693164U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric pressure cookers, in particular to an electric pressure cooker with multi-stage pressure full boiling cooking function. Background Art
[0002] At present, there are generally two types of electric pressure cookers on the market, one is a pressureless cooking electric pressure cooker, and the other is a pressure cooking electric pressure cooker. Among them, the pressure cooking electric pressure cookers all perform full boiling cooking in a single pressure stage, and cannot achieve full boiling cooking in two or more pressure stages. When users use electric pressure cookers to cook different ingredients, they require different cooking pressures, which results in that traditional electric pressure cookers cannot meet users' cooking needs for different ingredients. Utility Model Content
[0003] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides an electric pressure cooker with multi-stage pressure full boiling cooking to solve the problem that the existing electric pressure cookers have a single pressure stage and cannot meet the different usage requirements of users.
[0004] The utility model is a technical solution adopted to solve the problem. The embodiment of the utility model discloses an electric pressure cooker with multi-stage pressure full boiling cooking, including a pot body, an exhaust valve shell, an elastic valve core component, a driving component and a pressure transmission component. The exhaust valve shell is arranged on the pot body and is provided with an exhaust hole connected to the inside of the pot body. The elastic valve core component is arranged in the exhaust valve shell and closes the exhaust hole. The elastic valve core component is used to open the exhaust hole when the steam pressure in the pot body is greater than its elastic force. The driving component is arranged on the pot body. The pressure transmission component is movably arranged on the pot body and connected to the driving component. The pressure transmission component is used to move to separate from the elastic valve core component under the drive of the driving component so that the pressure transmission component does not apply a force on the elastic valve core component, or to move to squeeze the elastic valve core component under the drive of the driving component so that the pressure transmission component applies a force on the elastic valve core component.
[0005] As an optional implementation, in an embodiment of the utility model, the driving component is a motor, and the driving component includes a motor, a driving gear, and a driven gear. The motor is arranged on the pot body, the driving gear is connected to the motor, the driven gear is rotatably arranged on the pot body and meshingly connected to the driving gear, and the pressure transmission member is provided with meshing teeth, and the pressure transmission member is meshingly connected to the driven gear through the meshing teeth.
[0006] As an optional embodiment, in an embodiment of the utility model, the pot body includes an inner lining plate located between the exhaust valve housing and the pressure transmission component, the inner lining plate is provided with a through first guide groove, the pressure transmission component extends in a direction toward the exhaust valve housing to form a first guide column and a circumferential wall, the first guide column is movably arranged in the first guide groove and is used to squeeze the elastic valve core assembly, the circumferential wall is arranged around the first guide column, the meshing teeth are provided on the circumferential wall, and the driven gear is a ring gear and is sleeved on the circumferential wall.
[0007] As an optional implementation, in an embodiment of the utility model, the first guide groove is a step-shaped guide groove with the step surface facing the pressure transmission member, and the first guide column is a step-shaped guide column adapted to the first guide groove.
[0008] As an optional implementation, in an embodiment of the utility model, the elastic valve core assembly includes a valve core, a spring and a pressure plate, the valve core is used to close or open the exhaust hole, the pressure plate is arranged on the side of the exhaust valve housing opposite to the exhaust hole, the spring abuts between the valve core and the pressure plate, and the pressure transmission component is used to separate from or squeeze the pressure plate.
[0009] As an optional implementation, in an embodiment of the utility model, the valve core extends in a direction toward the pressure plate to form a second guide column, the pressure plate extends in a direction toward the valve core to form a third guide column, a second guide groove is provided in the third guide column, the second guide column extends into the second guide groove, the first end of the spring is sleeved outside the second guide column and the second end is sleeved outside the third guide column.
[0010] As an optional implementation, in the embodiment of the utility model, the pressure plate is further formed with a limiting groove arranged around the third guide column, and the end of the second end of the spring is located in the limiting groove.
[0011] As an optional implementation, in an embodiment of the utility model, an avoidance opening is provided on the exhaust valve housing, and one end of the pressure plate is movably inserted into the avoidance opening for the pressure transmission component to be squeezed, and a limiting portion is provided on the pressure plate, and the limiting portion is located inside the exhaust valve housing and has an outer diameter greater than the inner diameter of the avoidance opening to prevent the pressure plate from detaching from the exhaust valve housing.
[0012] As an optional implementation, in an embodiment of the utility model, a top cone facing the exhaust hole is provided on the valve core, and the top cone is used to close or open the exhaust hole.
[0013] As an optional implementation, in an embodiment of the utility model, the exhaust valve housing includes a valve seat and a valve cover, the valve seat is arranged on the pot body, the valve cover covers the valve seat, the valve seat is provided with the exhaust hole, and the elastic valve core assembly is arranged between the valve seat and the valve cover.
[0014] Implementing the embodiments of the present utility model will have the following beneficial effects:
[0015] The utility model comprises a pot body, an exhaust valve shell, an elastic valve core assembly, a driving assembly and a pressure transmission component. The exhaust valve shell is arranged on the pot body and is provided with an exhaust hole connected to the inside of the pot body. The elastic valve core assembly is arranged in the exhaust valve shell and closes the exhaust hole. The elastic valve core assembly is used to open the exhaust hole when the steam pressure in the pot body is greater than its elastic force. The driving assembly is arranged on the pot body. The pressure transmission component is movably arranged on the pot body and connected to the driving assembly. The pressure transmission component is used to move to separate from the elastic valve core assembly under the drive of the driving assembly so that the pressure transmission component does not apply a force to the elastic valve core assembly, or to move to squeeze the elastic valve core assembly under the drive of the driving assembly so that the pressure transmission component applies a force to the elastic valve core assembly. With such a design, when low-pressure full-boiling cooking is required, the pressure transmission component is driven by the driving component, and the pressure transmission component moves to separate from the elastic valve core component under the drive of the driving component, and the pressure transmission component does not apply a force to the elastic valve core component. At this time, the exhaust pressure of the elastic valve core component at the exhaust hole is only its own elastic force, that is, the pressure initially set by the elastic valve core component. When the pressure in the pot exceeds the pressure on the elastic valve core component, the steam in the pot pushes up the elastic valve core component, and the elastic valve core component is separated from the exhaust hole on the exhaust valve housing for exhaust, thereby realizing low-pressure full-boiling cooking; when high-pressure full-boiling cooking is required, the pressure transmission component is driven by the driving component, and the pressure transmission component moves to squeeze the elastic valve core component under the drive of the driving component, and the pressure transmission component applies a force to the elastic valve core component, thereby increasing the exhaust pressure of the elastic valve core component at the exhaust hole. At this time, a larger pressure is required in the pot to exceed the pressure of the elastic valve core component, thereby realizing high-pressure full-boiling cooking, so that the electric pressure cooker can meet the cooking needs of users for different ingredients. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1A cross-sectional view of an electric pressure cooker with multi-stage pressure full boiling cooking in an embodiment of the utility model Figure 1 ;
[0018] Figure 2 A cross-sectional view of an electric pressure cooker with multi-stage pressure full boiling cooking in an embodiment of the utility model Figure 2 .
[0019] The meanings of the reference numerals are as follows:
[0020] 1-pot body; 11-inner lining plate; 111-first guide groove; 2-exhaust valve housing; 21-valve seat; 211-exhaust hole; 22-valve cover; 221-avoidance opening; 3-elastic valve core assembly; 31-valve core; 311-second guide column; 312-top cone; 32-spring; 33-pressure plate; 331-third guide column; 332-second guide groove; 333-limiting groove; 334-limiting part; 41-driving assembly; 411-motor; 412-driving gear; 413-driven gear; 42-pressure transmission member; 421-first guide column; 422-circumferential wall. DETAILED DESCRIPTION
[0021] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.
[0024] Please also read Figure 1 and Figure 2The utility model discloses an electric pressure cooker with multi-stage pressure full boiling cooking, comprising a pot body 1, an exhaust valve shell 2, an elastic valve core component 3, a driving component 41 and a pressure transmission component 42, the exhaust valve shell 2 is arranged on the pot body 1 and is provided with an exhaust hole 211 connected to the inside of the pot body 1, the elastic valve core component 3 is arranged in the exhaust valve shell 2 and closes the exhaust hole 211, the elastic valve core component 3 is used to open the exhaust hole 211 when the steam pressure in the pot body 1 is greater than its elastic force, the driving component 41 is arranged on the pot body 1, the pressure transmission component 42 is movably arranged on the pot body 1 and connected to the driving component 41, the pressure transmission component 42 is used to move to separate from the elastic valve core component 3 under the drive of the driving component 41, so that the pressure transmission component 42 does not apply a force on the elastic valve core component 3, or, is used to move to squeeze the elastic valve core component 3 under the drive of the driving component 41, so that the pressure transmission component 42 applies a force on the elastic valve core component 3. With such a design, when low-pressure full-boiling cooking is required, the driving component 41 drives the pressure transmission component 42, and the pressure transmission component 42 moves to separate from the elastic valve core component 3 under the drive of the driving component 41, and the pressure transmission component 42 does not apply force to the elastic valve core component 3. At this time, the exhaust pressure of the elastic valve core component 3 at the exhaust hole 211 is only its own elastic force, that is, the initial adjustment pressure of the elastic valve core component 3. When the pressure in the pot exceeds the pressure on the elastic valve core component 3, the steam in the pot pushes up the elastic valve core component 3, and the elastic valve core component 3 and the exhaust valve housing 2 The exhaust hole 211 separates the exhaust to achieve low-pressure full-boiling cooking; when high-pressure full-boiling cooking is required, the pressure transmission component 42 is driven by the driving component 41. The pressure transmission component 42 moves to squeeze the elastic valve core component 3 under the drive of the driving component 41. The pressure transmission component 42 applies a force on the elastic valve core component 3, and the exhaust pressure of the elastic valve core component 3 at the exhaust hole 211 is increased. At this time, a larger pressure is required in the pot to exceed the pressure of the elastic valve core component 3, thereby achieving high-pressure full-boiling cooking, so that the electric pressure cooker can meet the user's cooking needs for different ingredients.
[0025] In some embodiments, the driving assembly 41 includes a motor 411, a driving gear 412 and a driven gear 413, wherein the driving gear 412 is connected to the motor 411, the driven gear 413 is rotatably disposed on the pot body 1 and meshedly connected to the driving gear 412, and the pressure transmission member 42 is provided with meshing teeth, and the pressure transmission member 42 is meshedly connected to the driven gear 413 through the meshing teeth. With such a design, when low-pressure full boiling cooking is required, the motor 411 drives the driving gear 412, and the driving gear 412, the driven gear 413 and the pressure transmission member 42 are meshed and transmitted in sequence to separate the pressure transmission member 42 from the elastic valve core assembly 3, and the pressure transmission member 42 does not apply a force on the elastic valve core assembly 3; when high-pressure full boiling cooking is required, the motor 411 drives the driving gear 412, and the driving gear 412, the driven gear 413 and the pressure transmission member 42 are meshed and transmitted in sequence to squeeze the elastic valve core assembly 3. It is understandable that in other embodiments, a transmission rod or the like may also be used as a design method of the transmission structure, which is not limited here.
[0026] Furthermore, the pot body 1 includes an inner lining plate 11 located between the exhaust valve housing 2 and the pressure transmission member 42, the inner lining plate 11 is provided with a through first guide groove 111, the pressure transmission member 42 extends in the direction toward the exhaust valve housing 2 to form a first guide column 421 and a circumferential wall 422, the first guide column 421 is movably arranged in the first guide groove 111 and is used to squeeze the elastic valve core component 3, the circumferential wall 422 is arranged around the first guide column 421, the circumferential wall 422 is provided with meshing teeth, and the driven gear 413 is a ring gear and is sleeved on the circumferential wall 422. With such a design, driven by the driving gear 412, the driven gear 413 rotates, the pressure transmission member 42 rotates under the action of the driven gear 413, and is converted into a lifting movement under the action of the first guide groove 111 and the second guide column 311.
[0027] Furthermore, the first guide groove 111 is a stepped guide groove with the stepped surface facing the pressure transmission member, and the first guide column 421 is a stepped guide column adapted to the first guide groove 111. With such a design, the first guide groove 111 and the first guide column 421 can not only play a guiding role, but also limit the movement of the pressure transmission member 42.
[0028] In some embodiments, the elastic valve core assembly 3 includes a valve core 31, a spring 32 and a pressure plate 33. The valve core 31 is used to close or open the exhaust hole 211. The pressure plate 33 is arranged on the side of the exhaust valve housing 2 opposite to the exhaust hole 211. The spring 32 abuts between the valve core 31 and the pressure plate 33. The pressure transmission component 42 is used to separate from or squeeze the pressure plate 33. Specifically, when low-pressure full boiling cooking is required, the pressure transmission component 42 is driven by the driven gear 413 to separate from the pressure plate 33, the pressure plate 33 is not squeezed by the pressure transmission component 42, the spring 32 is at the original compression amount, and the valve core 31 is acted upon by the initial pressure of the spring 32. When the pressure in the pot exceeds this pressure, the steam in the pot lifts up the sealing valve core 31, and the valve core 31 is separated from the exhaust hole 211 for exhaust, thereby achieving low-pressure full boiling cooking; when high-pressure full boiling cooking is required, the pressure transmission component 42 is driven by the driven gear 413 to squeeze the pressure plate 33, and at the same time pushes the pressure plate 33 downward, at which time the compression amount of the spring 32 is increased, and the valve core 31 increases the downward pressure under the action of the spring 32. At this time, a larger pressure is required in the pot to exceed the pressure of the valve core 31, and the valve core 31 is pushed upward to separate the valve core 31 from the exhaust hole 211 for exhaust, thereby achieving high-pressure full boiling cooking.
[0029] Furthermore, the valve core 31 extends in the direction toward the pressure plate 33 to form a second guide column 311, and the pressure plate 33 extends in the direction toward the valve core 31 to form a third guide column 331. A second guide groove 332 is provided in the third guide column 331, and the second guide column 311 extends into the second guide groove 332. The first end of the spring 32 is sleeved outside the second guide column 311 and the second end is sleeved outside the third guide column 331. With such a design, on the one hand, the valve core 31 and the pressure plate 33 can move along a preset direction through the cooperation of the second guide column 311 on the valve core 31 and the third guide column 331 on the pressure plate 33; on the other hand, the second guide column 311 and the third guide column 331 can also guide the spring 32 so that the spring 32 can be compressed and reset along the preset direction.
[0030] Furthermore, in order to further limit the position of the spring 32 , the pressure plate 33 is further formed with a limiting groove 333 arranged around the third guide column 331 , and the end of the second end of the spring 32 is located in the limiting groove 333 .
[0031] In order for the pressure transmission component 42 to squeeze the pressure plate 33, an avoidance opening 221 is provided on the exhaust valve housing 2. One end of the pressure plate 33 is movably inserted into the avoidance opening 221 for the pressure transmission component 42 to squeeze. A limiting portion 334 is provided on the pressure plate 33. The limiting portion 334 is located in the exhaust valve housing 2 and has an outer diameter greater than the inner diameter of the avoidance opening 221 to prevent the pressure plate 33 from detaching from the exhaust valve housing 2.
[0032] In order to improve the sealing performance at the exhaust hole 211 , a top cone 312 facing the exhaust hole 211 is provided on the valve core 31 , and the top cone 312 is used to close or open the exhaust hole 211 .
[0033] In some embodiments, the exhaust valve housing 2 includes a valve seat 21 and a valve cover 22, the valve seat 21 is arranged on the pot body 1, the valve cover 22 covers the valve seat 21, the valve seat 21 is provided with an exhaust hole 211, the elastic valve core assembly 3 is arranged between the valve seat 21 and the valve cover 22, and the valve cover 22 is provided with an avoidance opening 221.
[0034] The utility model provides an electric pressure cooker with multi-stage pressure full boiling cooking, comprising a pot body 1, an exhaust valve shell 2, an elastic valve core component 3, a drive component 41 and a pressure transmission component 42, wherein the exhaust valve shell 2 is arranged on the pot body 1 and is provided with an exhaust hole 211 connected to the inside of the pot body 1, the elastic valve core component 3 is arranged in the exhaust valve shell 2 and closes the exhaust hole 211, the elastic valve core component 3 is used to open the exhaust hole 211 when the steam pressure in the pot body 1 is greater than its elastic force, the drive component 41 is arranged on the pot body 1, the pressure transmission component 42 is movably arranged on the pot body 1 and connected to the drive component 41, the pressure transmission component 42 is used to move to separate from the elastic valve core component 3 under the drive of the drive component 41, so that the pressure transmission component 42 does not apply a force on the elastic valve core component 3, or, is used to move to squeeze the elastic valve core component 3 under the drive of the drive component 41, so that the pressure transmission component 42 applies a force on the elastic valve core component 3. With such a design, when low-pressure full-boiling cooking is required, the driving component 41 drives the pressure transmission component 42, and the pressure transmission component 42 moves to separate from the elastic valve core component 3 under the drive of the driving component 41, and the pressure transmission component 42 does not apply force to the elastic valve core component 3. At this time, the exhaust pressure of the elastic valve core component 3 at the exhaust hole 211 is only its own elastic force, that is, the initial adjustment pressure of the elastic valve core component 3. When the pressure in the pot exceeds the pressure on the elastic valve core component 3, the steam in the pot pushes up the elastic valve core component 3, and the elastic valve core component 3 and the exhaust valve housing 2 The exhaust hole 211 separates the exhaust to achieve low-pressure full-boiling cooking; when high-pressure full-boiling cooking is required, the pressure transmission component 42 is driven by the driving component 41. The pressure transmission component 42 moves to squeeze the elastic valve core component 3 under the drive of the driving component 41. The pressure transmission component 42 applies a force on the elastic valve core component 3, and the exhaust pressure of the elastic valve core component 3 at the exhaust hole 211 is increased. At this time, a larger pressure is required in the pot to exceed the pressure of the elastic valve core component 3, thereby achieving high-pressure full-boiling cooking, so that the electric pressure cooker can meet the user's cooking needs for different ingredients.
[0035] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.
Claims
1. An electric pressure cooker with multi-stage pressure full boiling cooking, characterized in that: The invention comprises a pot body (1), an exhaust valve housing (2), an elastic valve core assembly (3), a driving assembly (41) and a pressure transmission member (42); the exhaust valve housing (2) is arranged on the pot body (1) and is provided with an exhaust hole (211) connected to the inside of the pot body (1); the elastic valve core assembly (3) is arranged in the exhaust valve housing (2) and closes the exhaust hole (211); the elastic valve core assembly (3) is used to open the exhaust hole (211) when the steam pressure in the pot body (1) is greater than its elastic force; the driving assembly (41) is arranged in the pot body (1) and is provided with an exhaust hole (211) connected to the inside of the pot body (1); The pressure transmission component (42) is movably arranged on the pot body (1) and connected to the driving component (41). The pressure transmission component (42) is used to be driven by the driving component (41) to move to separate from the elastic valve core component (3) so that the pressure transmission component (42) does not apply a force to the elastic valve core component (3), or to be driven by the driving component (41) to move to squeeze the elastic valve core component (3) so that the pressure transmission component (42) applies a force to the elastic valve core component (3).
2. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 1, characterized in that: The driving assembly (41) comprises a motor (411), a driving gear (412), and a driven gear (413); the motor (411) is arranged on the pot body (1); the driving gear (412) is connected to the motor (411); the driven gear (413) is rotatably arranged on the pot body (1) and meshingly connected to the driving gear (412); the pressure transmission member (42) is provided with meshing teeth; the pressure transmission member (42) is meshingly connected to the driven gear (413) via the meshing teeth.
3. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 2, characterized in that: The pot body (1) comprises an inner lining plate (11) located between the exhaust valve housing (2) and the pressure transmission member (42), the inner lining plate (11) being provided with a through first guide groove (111), the pressure transmission member (42) extending in a direction toward the exhaust valve housing (2) to form a first guide column (421) and a circumferential wall (422), the first guide column (421) being movably arranged in the first guide groove (111) and being used for squeezing the elastic valve core assembly (3), the circumferential wall (422) being arranged around the first guide column (421), the meshing teeth being provided on the circumferential wall (422), and the driven gear (413) being a ring gear and being sleeved on the circumferential wall (422).
4. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 3, characterized in that: The first guide groove (111) is a stepped guide groove with the stepped surface facing the pressure transmission member (42), and the first guide column (421) is a stepped guide column adapted to the first guide groove (111).
5. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 1, characterized in that: The elastic valve core assembly (3) comprises a valve core (31), a spring (32) and a pressure plate (33); the valve core (31) is used to close or open the exhaust hole (211); the pressure plate (33) is arranged on a side of the exhaust valve housing (2) opposite to the exhaust hole (211); the spring (32) abuts between the valve core (31) and the pressure plate (33); and the pressure transmission member (42) is used to separate from the pressure plate (33) or press the pressure plate (33).
6. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 5, characterized in that: The valve core (31) extends in a direction toward the pressure plate (33) to form a second guide column (311), and the pressure plate (33) extends in a direction toward the valve core (31) to form a third guide column (331), a second guide groove (332) is provided in the third guide column (331), the second guide column (311) extends into the second guide groove (332), and a first end of the spring (32) is sleeved outside the second guide column (311) and a second end is sleeved outside the third guide column (331).
7. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 6, characterized in that: The pressure plate (33) is also formed with a limiting groove (333) arranged around the third guide column (331), and the end of the second end of the spring (32) is located in the limiting groove (333).
8. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 5, characterized in that: The exhaust valve housing (2) is provided with an escape opening (221), one end of the pressure plate (33) is movably inserted into the escape opening (221) for being pressed by the pressure transmission member (42), and a limiting portion (334) is provided on the pressure plate (33), the limiting portion (334) is located inside the exhaust valve housing (2) and has an outer diameter greater than an inner diameter of the escape opening (221) so as to prevent the pressure plate (33) from being separated from the exhaust valve housing (2).
9. The electric pressure cooker with multi-stage pressure full boiling cooking according to claim 5, characterized in that: The valve core (31) is provided with a top cone (312) facing the exhaust hole (211), and the top cone (312) is used to close or open the exhaust hole (211).
10. The electric pressure cooker with multi-stage pressure full boiling cooking according to any one of claims 1 to 9, characterized in that: The exhaust valve housing (2) comprises a valve seat (21) and a valve cover (22); the valve seat (21) is arranged on the pot body (1); the valve cover (22) covers the valve seat (21); the valve seat (21) is provided with the exhaust hole (211); and the elastic valve core assembly (3) is arranged between the valve seat (21) and the valve cover (22).