Cooking utensils

Abstract

The present invention provides a cooking utensil, comprising: a pot body for holding cooked food, a heating device being arranged in the pot body; a pot cover, the pot cover being arranged on the pot body, and the pot cover being arranged with an exhaust passage; a pressure limiting valve, cooperating with the exhaust passage, the pressure limiting valve comprising a pressure limiting valve body and a counterweight; a first driving mechanism, the first driving mechanism cooperating with the counterweight, the first driving mechanism being able to drive the counterweight to separate from the pressure limiting valve body; a control device connected with the heating device and the first driving mechanism, wherein the cooking utensil has a preset cooking mode, the preset cooking mode comprising an upper pressure stage, before the upper pressure stage, the control device controls the heating device to heat, and the first driving mechanism drives the counterweight to separate from the pressure limiting valve body. The technical solution of the present invention solves the problem of poor cooking flexibility of the electric pressure cooker in the prior art.

Description

Technical Field

[0001] The invention relates to a cooking utensil, and in particular to an improvement in a cooking method of the cooking utensil. Background Art

[0002] Electric pressure cookers are commonly used cooking appliances. In the prior art, electric pressure cookers are provided with a pressure limiting valve on the pot cover, and the pressure limiting valve is provided on the exhaust pipe. When the electric pressure cooker is cooking, if the pressure in the pot body is greater than the pressure limiting value of the pressure limiting valve, the pressure limiting valve will be lifted up to exhaust. However, since the weight of the pressure limiting valve is certain, the pressure limited by the pressure limiting valve is also certain, which leads to a relatively single cooking program mode and poor cooking flexibility. Summary of the invention

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

[0004] In order to achieve the above-mentioned purpose, the present invention provides a cooking utensil, comprising: a pot body, for holding food to be cooked, wherein a heating device is arranged in the pot body; a pot cover, which is arranged on the pot body, and is provided with an exhaust passage, and the pot cover comprises an inner lining and a surface cover arranged on the inner lining; a pressure limiting valve, which cooperates with the exhaust passage, and the pressure limiting valve comprises a pressure limiting valve body and a counterweight; a first driving mechanism, which cooperates with the counterweight, and the first driving mechanism can drive the counterweight to separate from the pressure limiting valve body; a control device, which is connected to the heating device and the first driving mechanism, wherein the cooking utensil has a preset cooking mode, and the preset cooking mode comprises a pressure-up stage, and before the pressure-up stage, the control device controls the heating device to heat, and the first driving mechanism drives the counterweight to separate from the pressure limiting valve body.

[0005] By applying the technical solution of this embodiment, when the cooking appliance is cooking, when the driving structure drives the counterweight block to separate from the pressure limiting valve body, the pressure limited by the pressure limiting valve is relatively low. When the counterweight block and the pressure limiting valve body act together on the exhaust passage, the pressure limited by the pressure limiting valve is relatively high. Therefore, when the cooking appliance is working, the pressure limiting valve can perform different pressure limits, thereby making the cooking mode more flexible. Therefore, the technical solution of this embodiment solves the problem of poor cooking flexibility of the electric pressure cooker in the prior art.

[0006] Furthermore, the pressing stage also includes: the control device controls the heating device to heat at a first power and presses the pot body upward.

[0007] Furthermore, the preset cooking mode also includes a first cooking stage that is performed after the pressing stage. The first cooking stage includes: the control device controls the heating device to heat at a second power and maintain a first preset time, and the second power is less than the first power.

[0008] Furthermore, the preset cooking mode also includes a second cooking stage that is performed after the first cooking stage, and the second cooking stage includes: the control device controls the heating device to heat at a third power and maintain it for a second preset time, and the third power is less than the second power.

[0009] Further, the first power is in the range of 1200W to 1400W, the second power is in the range of 800W to 1000W, and the third power is in the range of 200 to 400W.

[0010] Further, the first preset duration is in the range of 9 to 11 minutes, and the second preset duration is in the range of 7 to 9 minutes.

[0011] Furthermore, when the duration of the first cooking stage is greater than a first preset duration, the cooking appliance enters the second cooking stage from the first cooking stage.

[0012] Furthermore, the cooking appliance also includes a temperature sensor, which is connected to the control device and is used to detect the temperature inside the pot. When the temperature sensor detects that the temperature inside the pot is greater than a first preset temperature, the cooking appliance enters the second cooking stage from the first cooking stage.

[0013] Further, the first preset temperature is in the range of 110 degrees to 130 degrees.

[0014] Furthermore, the pressing stage includes: the control device controls the heating device to heat the pot body at a fourth power and pressurizes the pot body.

[0015] Furthermore, the preset cooking mode also includes a third cooking stage performed before the pressing stage, and the third cooking stage is a water absorption stage.

[0016] Furthermore, the third cooking stage includes: the control device controls the heating device to heat so that the temperature inside the pot body is within a second preset temperature and is maintained for a third preset time period.

[0017] Furthermore, the third cooking stage also includes: before the control device controls the heating device to heat so that the temperature inside the pot body is within the second preset temperature and maintained for a third preset time, the control device controls the heating device to heat the pot body at a fifth power so that the temperature inside the pot body reaches the third preset temperature; the control device controls the heating device to heat the pot body at a sixth power so that the temperature inside the pot body rises from the third preset temperature to the second preset temperature.

[0018] Furthermore, the third cooking stage also includes: the control device controls the heating device not to heat and maintains the seventh preset time length.

[0019] Further, before the third cooking stage, the counterweight and the pressure limiting valve body act together on the exhaust passage.

[0020] Further, after the third cooking stage and before the pressure-up stage, the first driving mechanism drives the counterweight to separate from the pressure-limiting valve body.

[0021] Furthermore, the preset cooking mode also includes a fourth cooking stage performed after the pressure-up stage, and the fourth cooking stage includes: the control device controls the heating device to heat the pot body at a seventh power and maintains it for a fourth preset time, and the seventh power is less than the fourth power.

[0022] Furthermore, the preset cooking mode also includes a fifth cooking stage performed after the fourth cooking stage, and the fifth cooking stage includes: the control device controls the heating device to heat the pot body at an eighth power and maintains it for a fifth preset time, and the eighth power is less than the seventh power.

[0023] Further, when the duration of the fourth cooking stage is greater than a fourth preset time length, the cooking appliance enters the fifth cooking stage from the fourth cooking stage.

[0024] Furthermore, the cooking appliance also includes a temperature sensor, which is connected to the control device and is used to detect the temperature inside the pot. When the temperature sensor detects that the temperature inside the pot is greater than a fourth preset temperature, the cooking appliance enters the fifth cooking stage from the fourth cooking stage.

[0025] Furthermore, the cooking appliance also includes a second driving mechanism, which cooperates with the pressure limiting valve. The second driving mechanism can drive the pressure limiting valve to separate from the exhaust channel so that the exhaust channel is connected to the outside world. The preset cooking mode also includes a sixth cooking stage performed after the fifth cooking stage. The sixth cooking stage includes: the second driving mechanism drives the pressure limiting valve to separate from the exhaust channel, and the control device controls the heating device to heat the pot body at a ninth power and maintain it for a sixth preset time.

[0026] Further, the fifth power is in the range of 1200 W to 1400 W, the sixth power is in the range of 200 W to 400 W, and the fourth power is equal to the fifth power.

[0027] Further, the seventh power is in the range of 700W to 900W, the eighth power is in the range of 200W to 400W, and the ninth power is in the range of 700W to 900W.

[0028] Further, the third preset temperature is in the range of 46 degrees to 50 degrees, and the second preset temperature is in the range of 55 degrees to 65 degrees.

[0029] Further, the fourth preset temperature is in the range of 110 to 130 degrees.

[0030] Furthermore, the third preset time length is in the range of 10 minutes to 20 minutes.

[0031] Further, the fourth preset time length is in the range of 6 minutes to 8 minutes, the fifth preset time length is in the range of 8 minutes to 12 minutes, and the sixth preset time length is in the range of 0 to 2 minutes.

[0032] Furthermore, the seventh preset time length is in the range of 10 minutes to 20 minutes.

[0033] Furthermore, a metal part is arranged on the counterweight block, and the first driving mechanism includes a magnetic part, which attracts the metal part and separates the counterweight block from the pressure-limiting valve body.

[0034] Furthermore, the first driving mechanism also includes a rocker arm and a driving motor, the rocker arm is arranged above the pressure limiting valve, the driving motor is connected to the first end of the rocker arm, and the magnetic part is arranged at the second end of the rocker arm, wherein the driving motor drives the rocker arm to swing so that the magnetic part is aligned with the metal part, or the magnetic part is misaligned with the metal part.

[0035] Furthermore, the preset cooking mode is a rice cooking mode.

[0036] Furthermore, the cooking appliance is an electric pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] 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:

[0038] Figure 1 A schematic structural diagram of a cooking appliance according to a first embodiment of the present invention is shown;

[0039] Figure 2 Shows Figure 1 A schematic diagram of the structure of the pressure limiting valve of the cooking utensil;

[0040] Figure 3 Shows Figure 2 The enlarged schematic diagram at A in the middle;

[0041] Figure 4 Shows Figure 1 A schematic diagram of the structure of the pot cover when the swing rod of the cooking utensil swings to align the metal part with the magnetic part;

[0042] Figure 5 Shows Figure 4 A schematic cross-sectional view of a pot lid of a cooking utensil;

[0043] Figure 6 Shows Figure 5 The enlarged schematic diagram of point B in the middle;

[0044] Figure 7 Shows Figure 1 A schematic diagram of the structure of the pot cover when the swing rod of the cooking utensil swings to the point where the metal part and the magnetic part are misaligned;

[0045] Figure 8 Shows Figure 7 A schematic cross-sectional view of the middle pot cover;

[0046] Fig. 9 Shows Figure 8 The enlarged schematic diagram at C in the middle;

[0047] Fig.10 Shows Figure 1 A schematic diagram of a cooking process of the cooking appliance; and

[0048] Fig.11 A schematic flow chart of a cooking process according to a second embodiment of the cooking appliance of the present invention is shown.

[0049] The above drawings include the following reference numerals:

[0050] 10. pot body; 20. pot cover; 30. exhaust channel; 40. pressure limiting valve; 41. pressure limiting valve body; 42. counterweight; 421. metal part; 50. first driving mechanism; 51. magnetic part; 52. rocker arm; 53. driving motor; 60. second driving mechanism. DETAILED DESCRIPTION

[0051] 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.

[0052] 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.

[0053] 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.

[0054] like Figures 1 to 3 As shown, the cooking utensil of this embodiment includes a pot body 10, a pot cover 20, a pressure limiting valve 40, a first driving mechanism 50 and a control device. The pot body 10 is used to hold the food to be cooked, and a heating device is arranged in the pot body 10. The pot cover 20 is arranged on the pot body 10, and the pot cover 20 is provided with an exhaust channel 30, and the pot cover 20 includes an inner lining and a surface cover arranged on the inner lining. The pressure limiting valve 40 cooperates with the exhaust channel 30, and the pressure limiting valve 40 includes a pressure limiting valve body 41 and a counterweight 42. The first driving mechanism 50 cooperates with the counterweight 42, and the first driving mechanism 50 can drive the counterweight 42 to separate from the pressure limiting valve body 41. The control device is connected to the heating device and the first driving mechanism 50. The cooking utensil has a preset cooking mode, and the preset cooking mode includes an upper pressure stage. Before the upper pressure stage, the control device controls the heating device to heat, and the first driving mechanism 50 drives the counterweight 42 to separate from the pressure limiting valve body 41.

[0055] By applying the technical solution of this embodiment, when the cooking appliance is cooking, when the first driving mechanism 50 drives the counterweight 42 to separate from the pressure limiting valve body 41, the pressure limited by the pressure limiting valve 40 is relatively low. When the counterweight 42 and the pressure limiting valve body 41 act together on the exhaust passage 30, the pressure limited by the pressure limiting valve 40 is relatively high. Therefore, when the cooking appliance is working, the pressure limiting valve can perform different pressure limits, thereby making the cooking mode more flexible. Therefore, the technical solution of this embodiment solves the problem of poor cooking flexibility of the electric pressure cooker in the prior art.

[0056] It should be noted that the preset cooking mode in this embodiment is the rice cooking mode. Of course, the above-mentioned control of the counterweight during the cooking process can also be applied to other cooking programs.

[0057] like Fig.10 As shown, in the technical solution of the first embodiment, the pressure-up stage also includes: the control device controls the heating device to heat at a first power and causes the pot body 10 to be pressurized. Specifically, after the user puts water and rice into the pot body, the heating device heats at the first power. Furthermore, during the period from the start of heating to the pressure-up in the pot body 10, the counterweight 42 is always separated from the pressure-limiting valve body 41. That is, during the period from the start of cooking to the pressure-up, the pressure limiting valve 40 limits the pressure of the exhaust channel 30 to a low level, thereby causing the pot body 10 to be pressurized quickly and causing the water to boil quickly.

[0058] like Fig.10As shown, in the technical solution of the first embodiment, the preset cooking mode also includes a first cooking stage after the pressure-up stage, and the first cooking stage includes: the control device controls the heating device to heat at a second power and maintain a first preset time, and the second power is less than the first power. Specifically, after the pressure is up in the pot body 10, the cooking power is reduced, and the water in the pot body 10 is continuously boiled, so that the rice is cooked.

[0059] like Fig.10 As shown, in the technical solution of the first embodiment, the preset cooking mode also includes a second cooking stage after the first cooking stage, and the second cooking stage includes that the control device controls the heating device to heat at a third power and maintain a second preset time, and the third power is less than the second power. Specifically, during the duration of the first cooking stage, the water continues to boil and eventually boils dry. The second cooking stage is the rice stewing stage. During the second cooking stage, the heating power of the heating device is reduced, that is, the third power is less than the second power.

[0060] It should be noted that in the first cooking stage and the second cooking stage, the counterweight 42 is always separated from the pressure limiting valve body 41. Further, in the entire cooking process of the first embodiment, the counterweight 42 is always separated from the pressure limiting valve body 41.

[0061] Preferably, in the technical solution of embodiment 1, the first power is in the range of 1200W to 1400W.

[0062] Preferably, in the technical solution of embodiment 1, the second power is in the range of 800W to 1000W.

[0063] Preferably, in the technical solution of Embodiment 1, the first preset duration is in the range of 9 to 11 minutes.

[0064] Preferably, in the technical solution of embodiment 1, the third power is in the range of 200 to 400W.

[0065] Preferably, in the technical solution of Embodiment 1, the second preset duration is in the range of 7 to 9 minutes.

[0066] Of course, those skilled in the art can adaptively adjust the value ranges of the above parameters.

[0067] like Fig.10 As shown, in the technical solution of this embodiment, when the duration of the first cooking stage is greater than the first preset time, the cooking appliance enters the second cooking stage from the first cooking stage. Specifically, when the duration of the first cooking stage is greater than the first preset time, it means that the water in the pot body 10 has been boiled dry or nearly boiled dry, and the power of the heating device is reduced, and the cooking appliance enters the second cooking stage from the first cooking stage.

[0068] Preferably, in the technical solution of the first embodiment, the cooking utensil further comprises a temperature sensor, which is connected to the control device, and is used to detect the temperature inside the pot body 10. When the temperature sensor detects that the temperature inside the pot body 10 is greater than the first preset temperature, the cooking utensil enters the second cooking stage from the first cooking stage. Specifically, when the temperature inside the pot body 10 detected by the temperature sensor is greater than the first preset temperature, it means that there is very little water inside the pot body 10, thereby causing the temperature inside the pot body 10 to rise. At this time, it is necessary to reduce the heating power and enter the rice stewing stage. Therefore, in the technical solution of this embodiment, when the temperature inside the pot body 10 detected by the temperature sensor is greater than the first preset temperature, even if the duration of the first cooking stage does not reach the first preset duration, the cooking utensil enters the second cooking stage from the first cooking stage. Preferably, the temperature sensor is arranged at the bottom of the pot body 10.

[0069] Preferably, in the technical solution of this embodiment, the first preset temperature is in the range of 110 degrees to 130 degrees.

[0070] like Figures 4 to 9 As shown, in the technical solution of the first embodiment, a metal part 421 is provided on the counterweight 42, and the first driving mechanism 50 includes a magnetic part 51, which attracts the metal part 421 and causes the counterweight 42 to separate from the pressure limiting valve body 41. The first driving mechanism 50 also includes a swing rod 52 and a driving motor 53, wherein the swing rod 52 is arranged above the pressure limiting valve 40, the driving motor 53 is connected to a first end of the swing rod 52, and the magnetic part 51 is arranged at a second end of the swing rod 52, wherein the driving motor 53 drives the swing rod 52 to swing, so that the magnetic part 51 is aligned with the metal part 421, or the magnetic part 51 is misaligned with the metal part 421.

[0071] Specifically, in the technical solution of the first embodiment, when the motor shaft of the driving motor 53 rotates, the swing rod 52 is driven to swing, and then the magnetic member 51 on the swing rod 52 is also driven to move. Figures 4 to 6 As shown, when the swing rod 52 swings to the point where the magnetic member 51 and the metal member 421 are aligned, the magnetic member 51 attracts the metal member 421, thereby causing the counterweight 42 to move upward. At this time, the counterweight 42 is not supported by the pressure limiting valve body 41, that is, the pressure limiting valve body 41 acts on the exhaust passage 30. At this time, the pressure limiting valve 40 limits the pressure on the exhaust passage 30 to a relatively small level. Figures 7 to 9 As shown, when the swing rod 52 swings to the point where the magnetic member 51 and the metal member 421 are misaligned with each other, the magnetic force exerted by the magnetic member 51 on the metal member 421 is insufficient to attract and lift the counterweight 42, and at this time, the counterweight 42 and the pressure-limiting valve body 41 act together on the exhaust passage 30. At this time, the pressure limited by the pressure-limiting valve 40 on the exhaust passage 30 is relatively large.

[0072] Of course, the first driving mechanism 50 is not limited to the motor and rocker structure, and the first driving mechanism 50 may also be another structure such as a lever structure.

[0073] In the first embodiment, the counterweight 42 is always separated from the pressure-limiting valve body 41 in the entire preset cooking mode, thereby greatly shortening the cooking time and achieving the purpose of fast cooking.

[0074] like Fig.11 As shown, in the second embodiment of the cooking appliance according to the present application, the pressing stage includes: the control device controls the heating device to heat the pot body 10 at the fourth power and pressurize the pot body 10. The above pressing process is consistent with that in the first embodiment.

[0075] like Fig.11 As shown, in the technical solution of the second embodiment, the preset cooking mode also includes a third cooking stage before the upper pressure stage, and the third cooking stage includes: the control device controls the heating device to heat the pot body 10 with the fifth power, so that the temperature in the pot body 10 reaches the third preset temperature; the control device controls the heating device to heat the pot body 10 with the sixth power, so that the temperature in the pot body 10 reaches the second preset temperature and maintains the third preset time, wherein before the third cooking stage, the counterweight 42 and the pressure limiting valve body 41 act together on the exhaust channel 30. Specifically, the third cooking stage is the water absorption stage of rice when cooking. The third preset temperature mentioned above is the water absorption temperature starting point of rice. That is, the pot body 10 is first heated with the fifth power, so that the rice reaches the water absorption temperature starting point, and then heated with the sixth power, and the rice continues to absorb water for the third preset time. After the rice absorbs water, it enters the upper pressure stage. Further, after the third cooking stage ends and before the upper pressure stage begins, the first driving mechanism 50 drives the counterweight 42 to separate from the pressure limiting valve body 41.

[0076] Furthermore, in the third cooking stage, i.e., the stage of rice absorbing water, the weight block 42 and the pressure limiting valve body 41 act together on the exhaust passage 30, thereby ensuring that the steam in the pot body 10 does not escape. When entering the pressure increasing stage from the third cooking stage, the weight block 42 is separated from the pressure limiting valve body 41, and only the pressure limiting valve body 41 acts on the exhaust passage 30.

[0077] Of course, the pot body 10 may not be heated in the third cooking stage, that is, the water is not heated during the water absorption process of the rice. For example, in another implementation of the second embodiment, in the third stage, the control device controls the heating device not to heat and maintain the seventh preset time, the seventh preset time is in the range of 10 to 20 minutes, and preferably the seventh preset time is 15 minutes.

[0078] like Fig.11As shown, in the technical solution of Example 2, the preset cooking mode also includes a fourth cooking stage performed after the pressure-up stage, and the fourth cooking stage includes: the control device controls the heating device to heat the pot body 10 at a seventh power and maintains it for a fourth preset time, and the seventh power is less than the fourth power.

[0079] like Fig.11 As shown, in the technical solution of Example 2, the preset cooking mode also includes a fifth cooking stage performed after the fourth cooking stage, and the fifth cooking stage includes: the control device controls the heating device to heat the pot body 10 at an eighth power and maintains the fifth preset time, and the eighth power is less than the seventh power.

[0080] The fourth cooking stage and the fifth cooking stage of the second embodiment have the same functions as the first cooking stage and the second cooking stage of the first embodiment, and will not be described in detail here.

[0081] Similar to the first embodiment, in the second embodiment, when the duration of the fourth cooking stage is greater than the fourth preset duration, the cooking appliance enters the fifth cooking stage from the fourth cooking stage.

[0082] Similar to the first embodiment, in the second embodiment, the cooking appliance further includes a temperature sensor, which is connected to the control device and is used to detect the temperature inside the pot body 10. When the temperature sensor detects that the temperature inside the pot body 10 is greater than a fourth preset temperature, the cooking appliance enters the fifth cooking stage from the fourth cooking stage.

[0083] like Figure 4 and Figure 7 As shown, in the technical solution of this embodiment, the cooking appliance also includes a second driving mechanism 60, the second driving mechanism 60 cooperates with the pressure limiting valve 40, and the second driving mechanism 60 can drive the pressure limiting valve 40 to separate from the exhaust channel 30 so that the exhaust channel 30 is connected to the outside world. The preset cooking mode also includes a sixth cooking stage after the fifth cooking stage. The sixth cooking stage includes: the second driving mechanism 60 drives the pressure limiting valve 40 to separate from the exhaust channel 30, and the control device controls the heating device to heat the pot body 10 at the ninth power and maintain the sixth preset time. Specifically, after the fifth cooking stage, the second driving mechanism 60 separates the pressure limiting valve 40 from the exhaust channel 30, and the exhaust channel 30 is connected to the outside world, that is, the exhaust channel 30 is exhausted. After exhausting, the heating device heats the sixth preset time at the ninth power and ends the cooking. Preferably, the above-mentioned second driving mechanism 60 is a solenoid valve.

[0084] Preferably, in the technical solution of Embodiment 2, the fifth power is in the range of 1200W to 1400W.

[0085] Preferably, in the technical solution of Embodiment 2, the sixth power is in the range of 200W to 400W.

[0086] Preferably, in the technical solution of Embodiment 2, the fourth power is equal to the fifth power.

[0087] Preferably, in the technical solution of Embodiment 2, the seventh power is in the range of 700W to 900W.

[0088] Preferably, in the technical solution of Embodiment 2, the eighth power is equal to the sixth power.

[0089] Preferably, in the technical solution of Embodiment 2, the ninth power is in the range of 700W to 900W.

[0090] Preferably, in the technical solution of Embodiment 2, the third preset temperature is in the range of 46 degrees to 50 degrees.

[0091] Preferably, in the technical solution of Embodiment 2, the second preset temperature is in the range of 55 degrees to 65 degrees.

[0092] Preferably, in the technical solution of embodiment 2, the fourth preset temperature is in the range of 110 to 130 degrees.

[0093] Preferably, in the technical solution of Embodiment 2, the third preset duration is in the range of 10 minutes to 20 minutes.

[0094] Preferably, in the technical solution of Embodiment 2, the fourth preset duration is in the range of 6 minutes to 8 minutes.

[0095] Preferably, in the technical solution of Embodiment 2, the fifth preset duration is in the range of 8 minutes to 12 minutes.

[0096] Preferably, in the technical solution of Embodiment 2, the sixth preset duration is in the range of 0 to 2 minutes.

[0097] Of course, those skilled in the art can adaptively adjust the value ranges of the above parameters.

[0098] Preferably, the cooking utensils in the first embodiment and the second embodiment are both electric pressure cookers.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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.

[0103] 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. A cooking utensil, 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), the pot cover (20) being arranged on the pot body (10), the pot cover (20) being provided with an exhaust passage (30), the pot cover (20) comprising an inner lining and a surface cover arranged on the inner lining; A pressure limiting valve (40) cooperates with the exhaust passage (30), the pressure limiting valve (40) comprising a pressure limiting valve body (41) and a counterweight (42); a first driving mechanism (50), the first driving mechanism (50) cooperating with the counterweight block (42), the first driving mechanism (50) being capable of driving the counterweight block (42) to separate from the pressure-limiting valve body (41); a control device connected to the heating device and the first driving mechanism (50), The cooking appliance has a preset cooking mode, which includes a pressing stage. Before the pressing stage, the control device controls the heating device to heat, and the first driving mechanism (50) drives the counterweight block (42) to separate from the pressure-limiting valve body (41).

2. The cooking device according to claim 1, characterized in that: The pressing stage also includes: The control device controls the heating device to heat at a first power and press the pot body (10) upward.

3. The cooking device according to claim 2, characterized in that: The preset cooking mode further includes a first cooking stage which is performed after the pressing stage, and the first cooking stage includes: The control device controls the heating device to heat at a second power and maintain the heating for a first preset time period, wherein the second power is less than the first power.

4. The cooking device according to claim 3, characterized in that: The preset cooking mode further includes a second cooking stage performed after the first cooking stage, and the second cooking stage includes: The control device controls the heating device to heat at a third power and maintain the heating for a second preset time period, and the third power is less than the second power.

5. The cooking device according to claim 4, characterized in that: The first power is in the range of 1200W to 1400W, the second power is in the range of 800W to 1000W, and the third power is in the range of 200W to 400W.

6. The cooking device according to claim 4, characterized in that: The first preset duration is in the range of 9 to 11 minutes, and the second preset duration is in the range of 7 to 9 minutes.

7. The cooking device according to claim 4, characterized in that: When the duration of the first cooking stage is greater than the first preset time length, the cooking appliance enters the second cooking stage from the first cooking stage.

8. The cooking device according to claim 4, characterized in that: The cooking utensil further comprises a temperature sensor connected to the control device, the temperature sensor being used to detect the temperature inside the pot body (10), and when the temperature sensor detects that the temperature inside the pot body (10) is greater than a first preset temperature, the cooking utensil enters the second cooking stage from the first cooking stage.

9. The cooking device according to claim 8, characterized in that: The first preset temperature is in the range of 110 degrees to 130 degrees.

10. The cooking device according to claim 1, characterized in that: The pressing stage includes: The control device controls the heating device to heat the pot body (10) at a fourth power and press the pot body (10) upward.

11. The cooking device according to claim 10, characterized in that: The preset cooking mode further includes a third cooking stage performed before the pressing stage, and the third cooking stage is a water absorption stage.

12. The cooking device according to claim 11, characterized in that: The third cooking stage includes: The control device controls the heating device to heat so that the temperature inside the pot body (10) is within a second preset temperature and is maintained for a third preset time period.

13. The cooking device according to claim 12, characterized in that: The third cooking stage also includes: Before the control device controls the heating device to heat so that the temperature inside the pot body (10) is within the second preset temperature and maintained for a third preset time, the control device controls the heating device to heat the pot body (10) at a fifth power so that the temperature inside the pot body (10) reaches the third preset temperature; The control device controls the heating device to heat the pot body (10) at a sixth power, so that the temperature inside the pot body (10) rises from the third preset temperature to the second preset temperature.

14. The cooking appliance according to claim 11, characterized in that The third cooking stage also includes: The control device controls the heating device not to heat and maintains the seventh preset time length.

15. The cooking appliance according to any one of claims 11 to 14, characterized in that: Before the third cooking stage, the counterweight (42) and the pressure limiting valve body (41) act together on the exhaust passage (30).

16. The cooking appliance according to any one of claims 11 to 14, characterized in that: After the third cooking stage, the first driving mechanism (50) drives the counterweight block (42) to separate from the pressure limiting valve body (41).

17. The cooking appliance according to claim 10, characterized in that The preset cooking mode further includes a fourth cooking stage performed after the pressing stage, and the fourth cooking stage includes: The control device controls the heating device to heat the pot body (10) at a seventh power and maintain the heating for a fourth preset time period, wherein the seventh power is less than the fourth power.

18. The cooking appliance according to claim 17, characterized in that The preset cooking mode further includes a fifth cooking stage performed after the fourth cooking stage, and the fifth cooking stage includes: The control device controls the heating device to heat the pot body (10) at an eighth power and maintain the heating for a fifth preset time, wherein the eighth power is less than the seventh power.

19. The cooking appliance according to claim 18, characterized in that When the duration of the fourth cooking stage is greater than the fourth preset time length, the cooking appliance enters the fifth cooking stage from the fourth cooking stage.

20. The cooking appliance according to claim 18, characterized in that The cooking appliance further comprises a temperature sensor connected to the control device, the temperature sensor being used to detect the temperature inside the pot body (10), and when the temperature sensor detects that the temperature inside the pot body (10) is greater than a fourth preset temperature, the cooking appliance enters the fifth cooking stage from the fourth cooking stage.

21. The cooking appliance according to claim 18, characterized in that The cooking appliance further comprises a second driving mechanism (60), the second driving mechanism (60) cooperates with the pressure limiting valve (40), and the second driving mechanism (60) can drive the pressure limiting valve (40) to separate from the exhaust passage (30), so that the exhaust passage (30) is connected to the outside, and the preset cooking mode further comprises a sixth cooking stage performed after the fifth cooking stage, and the sixth cooking stage comprises: The second driving mechanism (60) drives the pressure limiting valve (40) to separate from the exhaust passage (30), and the control device controls the heating device to heat the pot body (10) at a ninth power and maintain the heating for a sixth preset time.

22. The cooking appliance according to claim 13, characterized in that The fifth power is in the range of 1200 W to 1400 W, the sixth power is in the range of 200 W to 400 W, and the fourth power is equal to the fifth power.

23. The cooking appliance according to claim 21, characterized in that The seventh power is in the range of 700W to 900W, the eighth power is in the range of 200W to 400W, and the ninth power is in the range of 700W to 900W.

24. The cooking appliance according to claim 13, characterized in that The third preset temperature is in the range of 46 degrees to 50 degrees, and the second preset temperature is in the range of 55 degrees to 65 degrees.

25. The cooking appliance according to claim 20, characterized in that The fourth preset temperature is in the range of 110 to 130 degrees.

26. The cooking appliance according to claim 12, characterized in that The third preset duration is in the range of 10 minutes to 20 minutes.

27. The cooking appliance according to claim 21, characterized in that The fourth preset time length is in the range of 6 minutes to 8 minutes, the fifth preset time length is in the range of 8 minutes to 12 minutes, and the sixth preset time length is in the range of 0 to 2 minutes.

28. The cooking appliance according to claim 14, characterized in that The seventh preset duration is in the range of 10 minutes to 20 minutes.

29. The cooking appliance according to claim 1, characterized in that The counterweight (42) is provided with a metal part (421), and the first driving mechanism (50) comprises a magnetic part (51), and the magnetic part (51) attracts the metal part (421) and causes the counterweight (42) to separate from the pressure-limiting valve body (41).

30. The cooking appliance according to claim 29, characterized in that The first driving mechanism (50) further comprises a swing rod (52) and a driving motor (53), wherein the swing rod (52) is arranged above the pressure limiting valve (40), the driving motor (53) is connected to a first end of the swing rod (52), and the magnetic component (51) is arranged at a second end of the swing rod (52), wherein the driving motor (53) drives the swing rod (52) to swing so that the magnetic component (51) is aligned with the metal component (421), or the magnetic component (51) is misaligned with the metal component (421).

31. The cooking appliance according to claim 1, characterized in that The preset cooking mode is a rice cooking mode.

32. The cooking appliance according to claim 1, characterized in that The cooking utensil is an electric pressure cooker.

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