Cooking utensils

Abstract

A cooking appliance includes: a pot body for holding food to be cooked, with a heating device disposed within the pot body; a lid disposed on the pot body, the lid having an opening mechanism and an exhaust device communicating with the cooking space, wherein the opening mechanism has a locked position and an unlocked position, when the opening mechanism is in the locked position, the user cannot open the lid, and when the opening mechanism is in the unlocked position, the user can open the lid; a first sensor and a second sensor, the first sensor being disposed inside the lid and used to detect temperature, the second sensor being used to detect whether the opening mechanism is in the locked position, wherein when the first sensor detects a temperature rise exceeding a preset value within a first preset time period, and the second sensor detects that the opening mechanism is not in the locked position and the heating device is not in a heating state, the exhaust device exhausts air. The technical solution of this invention solves the problem of difficulty in screwing on the lid handle of existing cooking appliances.

Description

Technical Field

[0001] The invention relates to a cooking utensil, and in particular to an improvement on a cover-closing exhaust structure of the cooking utensil. Background Art

[0002] Electric pressure cookers are commonly used household cooking appliances. Among them, the lid of the cooking appliance is provided with a lid opening handle, and the user can rotate the lid opening handle to lock or unlock the pot body and the lid. However, the electric pressure cookers in the prior art have the following problems:

[0003] When the electric pressure cooker is opened and not heated, if there is hot steam in the pot, the hot steam will push the lid up after the lid is closed. The above situation will cause the user to feel a noticeable sticking sensation when rotating the lid handle, and it is very difficult and laborious to rotate the lid handle to the locked position, which greatly affects the user experience of the product. Summary of the invention

[0004] The main purpose of the present invention is to provide a cooking utensil to solve the problem that the cover opening handle of the cooking utensil in the prior art is difficult to screw together.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a cooking utensil, comprising: a pot body, for holding cooked food, wherein a heating device is arranged in the pot body; a pot cover, arranged on the pot body, wherein a lid opening structure and an exhaust device connected to the cooking space are arranged on the pot cover, wherein the lid opening structure has a locking position and an unlocking position, when the lid opening structure is in the locking position, the user cannot open the pot cover, and when the lid opening structure is in the unlocking position, the user can open the pot cover; a first sensor and a second sensor, wherein the first sensor is arranged in the pot cover, the first sensor is used to detect the temperature, and the second sensor is used to detect whether the lid opening structure is in the locking position, wherein when the first sensor detects that the temperature rise change value is greater than a preset value within a first preset time period, and the second sensor detects that the lid opening structure is not in the locking position and the heating device is not in a heating state, the exhaust device exhausts air.

[0006] By applying the technical solution of the present invention, when the first sensor detects that the temperature rise in the pot body is greater than the preset value, and the second sensor detects that the lid opening structure is in the unlocked position, it means that the user needs or may rotate the lid opening structure to the locked position. At this time, the exhaust device exhausts air to reduce the pressure in the pot body, so that the pressure no longer pushes the pot cover upward, and the user can easily rotate the lid opening structure. Therefore, the technical solution of the present invention solves the problem of difficulty in screwing the lid opening handle in the prior art.

[0007] Furthermore, when the second sensor detects that the cover opening structure is in the locked position, the exhaust device stops exhausting.

[0008] Furthermore, when the first sensor detects that the temperature rise change value is greater than the preset value within the first preset time period, and the second sensor detects that the opening cover structure is not in the locked position and the heating device is not in the heating state, the exhaust device exhausts for a second preset time period.

[0009] Furthermore, the second preset duration is in the range of 30 seconds to 90 seconds.

[0010] Furthermore, the second preset time is 60 seconds.

[0011] Furthermore, the first preset duration is in the range of 30 seconds to 90 seconds.

[0012] Furthermore, the first preset duration is 60 seconds.

[0013] Further, the preset value is in the range of 1 to 5 degrees Celsius.

[0014] Furthermore, when the first sensor detects that the temperature rise value based on the preset temperature is greater than the preset value within the first preset time period, and the second sensor detects that the opening cover structure is not in the locked position and the heating device is not in the heating state, the exhaust device exhausts air.

[0015] Further, the preset temperature is in the range of 55 to 65 degrees.

[0016] Furthermore, the cooking appliance further comprises a prompt device, and when the first sensor detects that the pressure value in the pot body is greater than a preset value, and the second sensor detects that the cover opening structure is in an unlocked position, the prompt device sends a prompt signal.

[0017] Furthermore, the prompting device is an indicator light or a buzzer.

[0018] Furthermore, the cooking utensil also includes a rotating rod and a locking cover. The rotating rod is arranged in the pot cover and is coaxially arranged with the lid opening structure. The locking cover is arranged on the lower side of the pot cover and is connected to the rotating rod. The user rotates the lid opening structure to drive the locking cover to rotate, wherein the locking cover is provided with cover teeth, and the pot body is provided with pot teeth. When the lid opening structure is in a locked position, the cover teeth and the pot teeth are locked with each other. When the lid opening structure is in an unlocked position, the cover teeth and the pot teeth are separated from each other.

[0019] Furthermore, the cooking appliance is an electric pressure cooker. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] 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:

[0021] Figure 1A schematic diagram showing a three-dimensional structure of an embodiment of a cooking utensil according to the present invention; and

[0022] Figure 2 Shows Figure 1 A schematic diagram of the structure of the cooking utensil when the pot lid is in the open position.

[0023] The above drawings include the following reference numerals:

[0024] 10. Pot body; 20. Pot cover; 30. Lid opening structure; 40. Exhaust device; 50. Lid lock. DETAILED DESCRIPTION

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] like Figure 1As shown, the cooking device of this embodiment includes a pot body 10, a pot cover 20, a first sensor and a second sensor. 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 an opening structure 30 and an exhaust device 40 connected to the cooking space are arranged on the pot cover 20, wherein the opening structure 30 has a locking position and an unlocking position, when the opening structure 30 is in the locking position, the user cannot open the pot cover 20, and when the opening structure 30 is in the unlocking position, the user can open the pot cover 20. The first sensor is arranged in the pot cover 20, the first sensor is used to detect the temperature, and the second sensor is used to detect whether the opening structure 30 is in the locking position. When the first sensor detects that the temperature rise change value is greater than the preset value within the range of the first preset time length, and the second sensor detects that the opening structure 30 is not in the locking position and the heating device is not in the heating state, the exhaust device 40 exhausts the gas.

[0033] By applying the technical solution of the present invention, when the first sensor detects that the temperature inside the pot body 10 rises to a value greater than a preset value, and the second sensor detects that the lid opening structure is in the unlocked position, it means that the user needs or may rotate the lid opening structure to the locked position. At this time, the exhaust device 40 exhausts air to reduce the pressure inside the pot body 10, so that the pressure no longer pushes the pot cover 20 upward, and the user can easily rotate the lid opening structure. Therefore, the technical solution of the present invention solves the problem of difficulty in screwing the lid opening handle in the prior art.

[0034] It should be noted that the first sensor is a temperature sensor. For an electric pressure cooker, the first sensor is usually a temperature sensor disposed in the pot cover 20. When the pot cover 20 is in the open position, the first sensor is away from the pot body 10, and thus the first sensor is relatively far away from the steam in the pot body 10. At this time, the temperature detected by the first sensor is greater than the indoor temperature. When the user closes the lid, the pot cover 20 gradually approaches the pot body 10, that is, the first sensor gradually approaches the pot body 10 and contacts the steam in the pot body 10. In this process, the first sensor contacts the steam and detects a rapid rise in temperature, at which time it can be determined that the user is performing a lid closing operation.

[0035] After the user closes the lid, if the second sensor detects that the lid-opening structure 30 is not in the locked position. That is, when the lid-opening structure 30 is in the unlocked position, it means that the user may need to rotate the lid-opening structure 30 to the locked position. Since there is steam in the pot body 10, the user may not be able to turn the lid-opening structure 30 smoothly, and may feel stuck. Therefore, when the first sensor detects that the temperature rise change value is greater than the preset value within the first preset time period, and the second sensor detects that the lid-opening structure 30 is not in the locked position, the exhaust device 40 exhausts air, thereby releasing the pressure in the pot body 10 to ensure that the user can open the lid smoothly.

[0036] Further, when the heating device is in the heating state, that is, the cooking utensil is in the cooking state. At this time, a large amount of steam will be generated in the pot body 10. For the electric pressure cooker, the electric pressure cooker is in the state of flavoring and collecting juice, the heating device is turned on, and the pot cover 20 is also in the open state. At this time, even if the temperature detected by the first sensor rises, and the second sensor detects that the cover opening structure 30 is not in the locked state, the exhaust device 40 does not need to exhaust. Therefore, only when the heating device stops heating, the exhaust device 40 is necessary to exhaust and release the steam in the pot body 10. That is, when the first sensor detects that the temperature rise change value is greater than the preset value within the range of the first preset time length, and the second sensor detects that the cover opening structure 30 is not in the locked position and the heating device is not in the heating state, the exhaust device 40 exhausts. The above structure can more accurately judge whether the user wants to rotate the cover opening structure 30, thereby improving the accuracy of control, and will not affect the normal cooking operation.

[0037] In the technical solution of this embodiment, when the second sensor detects that the lid opening structure 30 is in the locked position, the exhaust device 40 stops exhausting. Specifically, when the second sensor detects that the lid opening structure 30 is in the locked position, it means that the user has completed the operation of rotating the lid opening structure 30, that is, it is not necessary to exhaust gas to reduce the pressure in the pot body 10. Therefore, when the result detected by the second sensor meets the above conditions, the exhaust device 40 stops exhausting gas.

[0038] In the technical solution of the present embodiment, when the first sensor detects that the temperature rise change value is greater than the preset value within the range of the first preset time, and when the second sensor detects that the cover opening structure 30 is not in the locked position and the heating device is not in the heating state, the exhaust device 40 exhausts for the second preset time. Specifically, when the exhaust device 40 needs to exhaust and release the steam in the pot body 10, the exhaust time of the exhaust device 40 should not be too long or too short. Too short exhaust time may cause a large amount of steam to remain in the pot body 10, and it is still difficult for the user to rotate the cover opening structure 30. Too long exhaust time will extend the cooking time, extend the user's waiting time, and reduce the product usage experience. Therefore, in the present embodiment, the second preset time is in the range of 30 seconds to 90 seconds. Preferably, the second preset time is 60 seconds.

[0039] In the technical solution of this embodiment, the first preset time is in the range of 30 seconds to 90 seconds. Preferably, the first preset time is 60 seconds. The preset value is in the range of 1 to 5 degrees Celsius. For example, the first sensor detects the temperature change within a time of 60 seconds. If the temperature change is detected to rise by 3 degrees within 60 seconds, it is determined that the user has closed the lid and caused the temperature to rise.

[0040] In the technical solution of this embodiment, when the first sensor detects that the rising change value of the temperature based on the preset temperature is greater than the preset value within the range of the first preset time length, and the second sensor detects that the cover opening structure 30 is not in the locking position and the heating device is not in the heating state, the exhaust device 40 exhausts. Specifically, the above judgment method can improve the control accuracy of the exhaust device 40. First, when the temperature in the pot body 10 is low, even if there is a certain amount of steam in the pot body 10, the pressure generated by it is not enough to push the pot cover, that is, the exhaust device 40 does not need to exhaust at this time. When the temperature in the pot body 10 reaches a certain value, the pressure generated by the steam is sufficient to generate the pressure to push the pot cover 20. That is, when the first sensor detects a temperature change, but the temperature is at a low level, there is no need to exhaust at this time. When the temperature detected by the first sensor is high, it is necessary to exhaust the steam and pressure in the pot body 10 to ensure that the user can open the lid normally. Secondly, when the pot cover 20 is in the open position, the temperature detected by the first sensor is approximately the indoor temperature. If the environment changes due to the outside world, the temperature detected by the first sensor will also change, which will cause the exhaust device 40 to exhaust abnormally and seriously affect the user's experience. Therefore, in this embodiment, the exhaust device 40 starts to exhaust only after the temperature detected by the first sensor reaches the preset temperature and rises by a preset value based on the preset temperature.

[0041] Preferably, the preset temperature in this embodiment is in the range of 55 to 65 degrees.

[0042] like Figure 1 As shown, in the technical solution of this embodiment, the cooking appliance also includes a prompting device. When the first sensor detects that the pressure value in the pot body 10 is greater than a preset value, and the second sensor detects that the cover opening structure 30 is in the unlocked position, the prompting device sends a prompting signal. Specifically, when the detection structure of the first sensor and the second sensor meets the above conditions, a prompting signal can also be sent by the prompting device to prompt the user that manual exhaust is required. Preferably, the prompting device in this embodiment is an indicator light or a buzzer. Of course, in addition to allowing the user to manually exhaust, a mechanical structure such as a solenoid valve can also be provided to automatically exhaust the exhaust device 40.

[0043] Preferably, the first sensor of this embodiment is a pressure sensor or a temperature sensor. Specifically, the pressure in the pot body 10 can be measured by directly detecting the pressure or indirectly detecting the temperature.

[0044] like Figure 2As shown, in the technical solution of this embodiment, the cooking utensil further includes a rotating rod and a locking cover 50, the rotating rod is arranged in the pot cover 20 and is coaxially arranged with the lid opening structure 30, the locking cover 50 is arranged at the lower side of the pot cover 20 and is connected to the rotating rod, and the user rotates the lid opening structure 30 to drive the locking cover 50 to rotate, wherein the locking cover 50 is provided with a cover tooth, and the pot body 10 is provided with a pot tooth, when the lid opening structure 30 is in the locked position, the cover tooth and the pot tooth are locked with each other, and when the lid opening structure 30 is in the unlocked position, the cover tooth and the pot tooth are separated from each other. Specifically, the pot cover 20 includes an inner lining and a surface cover arranged on the inner lining, and the locking cover is arranged at the lower side of the inner lining. When steam is retained in the pot body 10, the steam pushes the locking cover upward after the user closes the lid, and the locking cover is tightly abutted against the lower surface of the inner lining, and when the user rotates the lid opening structure 30 at this time, a large friction force is generated between the locking cover and the inner lining. Therefore, after the user closes the lid and before the lid opening structure 30 needs to be rotated, the exhaust device 40 needs to be exhausted. After the pressure in the pot body 10 is reduced, the positions of the lock cover and the lining return to normal, and the user can smoothly rotate the cover opening structure 30.

[0045] Preferably, the cooking utensil in this embodiment is an electric pressure cooker.

[0046] 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) has a cooking space for holding 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 the pot cover (20) is provided with a cover opening structure (30) and an exhaust device (40) connected to the cooking space, wherein the cover opening structure (30) has a locking position and an unlocking position, and when the cover opening structure (30) is in the locking position, the user cannot open the pot cover (20), and when the cover opening structure (30) is in the unlocking position, the user can open the pot cover (20); a first sensor and a second sensor, wherein the first sensor is arranged in the pot cover (20), the first sensor is used to detect the temperature, and the second sensor is used to detect whether the cover opening structure (30) is in a locked position. When the first sensor detects that the temperature rise value is greater than a preset value within a first preset time period, and the second sensor detects that the cover opening structure (30) is not in the locking position and the heating device is not in a heating state, the exhaust device (40) exhausts air.

2. The cooking device according to claim 1, characterized in that: When the second sensor detects that the cover opening structure (30) is in the locking position, the exhaust device (40) stops exhausting.

3. The cooking device according to claim 1, characterized in that: When the first sensor detects that the temperature rise value is greater than the preset value within the first preset time period, and the second sensor detects that the cover opening structure (30) is not in the locking position and the heating device is not in the heating state, the exhaust device (40) exhausts for a second preset time period.

4. The cooking device according to claim 3, characterized in that: The second preset time length is in the range of 30 seconds to 90 seconds.

5. The cooking device according to claim 4, characterized in that: The second preset time is 60 seconds.

6. The cooking device according to claim 1, characterized in that: The first preset duration is in the range of 30 seconds to 90 seconds.

7. The cooking device according to claim 6, characterized in that: The first preset duration is 60 seconds.

8. The cooking device according to claim 1, characterized in that: The preset value is in the range of 1 to 5 degrees Celsius.

9. The cooking device according to claim 1, characterized in that: When the first sensor detects that the temperature rise value based on the preset temperature is greater than the preset value within the first preset time period, and the second sensor detects that the cover opening structure (30) is not in the locking position and the heating device is not in the heating state, the exhaust device (40) exhausts the air.

10. The cooking appliance according to claim 9, characterized in that The preset temperature is in the range of 55 to 65 degrees.

11. The cooking device according to claim 1, characterized in that: The cooking appliance further comprises a prompting device, wherein when the first sensor detects that the pressure value in the pot body (10) is greater than the preset value and the second sensor detects that the cover opening structure (30) is in an unlocked position, the prompting device sends a prompting signal.

12. The cooking device according to claim 11, characterized in that: The prompting device is an indicator light or a buzzer.

13. The cooking appliance according to claim 1, characterized in that The cooking utensil further comprises a rotating rod and a locking cover (50), wherein the rotating rod is arranged inside the pot cover (20) and is coaxially arranged with the lid opening structure (30), and the locking cover (50) is arranged on the lower side of the pot cover (20) and is connected to the rotating rod, and a user can drive the locking cover (50) to rotate by rotating the lid opening structure (30), wherein the locking cover (50) is provided with a cover tooth, and the pot body (10) is provided with a pot tooth, and when the lid opening structure (30) is in the locking position, the cover tooth and the pot tooth are locked with each other, and when the lid opening structure (30) is in the unlocking position, the cover tooth and the pot tooth are separated from each other.

14. The cooking appliance according to any one of claims 1 to 13, characterized in that: The cooking utensil is an electric pressure cooker.

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