Cooking utensil

Abstract

The utility model discloses a cooking utensil, an upper functional assembly of the cooking utensil comprises an upper heating assembly and an upper functional device, and the upper heating assembly is arranged to be movable in the height direction; an upper functional device is mounted on the upper heating assembly to move with the upper heating assembly, and the upper functional device includes an upper seal abutting an edge of the through hole. The movable upper heating assembly can eliminate a mounting gap between the upper heating assembly and the inner cover assembly and a gap generated by deformation of the lining cover; the upper functional device moves along with the upper heating assembly, and the relative position between the upper functional device and the inner cover assembly is kept fixed, so that even if the lining cover deforms, the compression amount of the upper sealing piece can be kept fixed, the sealing reliability between the upper sealing piece and the edge of the through hole is ensured, and the risk of steam leakage is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of kitchen household appliances, and more specifically to a cooking utensil. Background Technology

[0002] Existing pressure cooking appliances, such as pressure rice cookers, have a lid consisting of a liner, an inner lid, and a heating element located on the top. The heating element is mounted on the liner, and the heat it generates can be transferred to the inner lid, preventing condensation on the lower surface of the inner lid and allowing heating of the top of the cooking space via the inner lid. For cooking control, the liner is equipped with functional devices such as temperature sensors, which communicate with or contact the cooking space through a through-hole in the inner lid. These functional devices typically have a seal to seal against the inner lid at the through-hole.

[0003] However, due to the heat source inside the cover, the liner will deform after long-term use, causing the functional devices on the liner to deviate upward from the inner cover. The seals of the functional devices also move upward, and the compression of the bottom of the seal against the inner cover decreases, which poses a risk of steam leakage.

[0004] Therefore, a cooking appliance is needed to at least partially solve the above problems. Utility Model Content

[0005] The description of this utility model introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, this utility model provides a cooking appliance, which includes a lid and a pot body. The lid is closable and can be opened and closed within the pot body to form a cooking space between the lid and the pot body. The lid includes a liner, an inner lid assembly with a through hole, and an upper functional assembly. The upper functional assembly is located between the inner lid assembly and the liner and is movably connected to the liner in the height direction. The upper functional assembly includes:

[0007] Upper heating assembly, the upper heating assembly being configured to be movable relative to the liner in the height direction; and

[0008] An upper functional device is mounted on an upper heating assembly to move together with the upper heating assembly, and the upper functional device includes an upper seal that abuts against the edge of a through hole.

[0009] According to this solution, the movable upper heating assembly eliminates the installation gap between the upper heating assembly and the inner cover assembly, as well as the gap caused by the deformation of the liner. The upper functional device moves together with the upper heating assembly, and the relative position between the upper functional device and the inner cover assembly remains fixed. This ensures that even if the liner deforms, the compression of the upper seal remains constant, guaranteeing the reliability of the seal between the upper seal and the edge of the through hole and effectively avoiding the risk of steam leakage.

[0010] Optionally, the upper functional component also includes a resilient element that provides a downward elastic force to the upper heating component, keeping the upper heating component abutting against the inner cover assembly. According to this solution, the resilient element provides a downward elastic force to keep the relative position between the upper heating component and the inner cover assembly fixed and abutting against each other, allowing heat to be conducted to the inner cover assembly through contact, resulting in higher heat transfer efficiency, effectively preventing condensation on the lower surface of the inner cover assembly, and effectively heating the top of the cooking space via the inner cover assembly.

[0011] Optionally, the elastic element is sandwiched between the cover and the upper heating assembly, with the elastic element abutting against the lower surface of the cover. According to this design, the elastic element generates a downward elastic force when compressed upward by the upper heating assembly and blocked by the cover.

[0012] Optionally, the upper heating assembly includes a heat insulation element configured to be movably connected to the liner, with the elastic element and upper functional device both mounted on the heat insulation element. According to this solution, the heat insulation element can effectively block heat transfer to structures such as the liner, elastic element, and upper functional device, resulting in lower heat levels in the heat insulation element and these connected structures, thereby preventing these structures from deforming due to high temperatures and affecting their functionality.

[0013] Optionally, the upper heating assembly includes a heat insulation component. The heat insulation component is provided with at least two mounting posts and at least two limiting components at intervals. Each mounting post is fitted with an elastic element, and each limiting component is connected to its corresponding mounting post. The upper end of each limiting component has a hook portion that can be movably hung on the liner. According to this solution, the upper end of the limiting component is a free end, capable of moving up and down relative to the liner. The heat insulation component can be movably connected to the liner via the limiting components, thereby allowing the entire upper functional assembly to be movably suspended from the liner. The mounting posts at different positions can limit their respective elastic elements to prevent horizontal movement / swaying and keep the elastic elements stably clamped between the heat insulation component and the liner. Thus, the elastic elements at different positions can provide a stable elastic force, making the up-and-down movement of the upper functional assembly more stable and reliable.

[0014] Optionally, the liner is provided with a hook hole through which the limiting member passes, and the hook portion abuts against the edge of the hook hole to limit its position on the upper side of the liner. According to this solution, the hook portion can be blocked by the edge of the hook hole to keep it on the upper side of the liner, thereby allowing the heat insulation member to be movably suspended from the liner.

[0015] Optionally, the upper heating assembly includes a main body portion and a mounting portion for connection with the liner, wherein the overall thickness of the main body portion is less than the gap between the inner cover assembly and the liner. According to this design, there is space between the inner cover assembly and the liner for the upper heating assembly to move vertically, ensuring that the upper heating assembly can move up and down.

[0016] The upper heating component is an electric heating component, an infrared heating component, or an electromagnetic heating component. According to this solution, the inner cover component can be heated by electric heating, infrared radiation, or electromagnetic heating. Electric heating has a lower cost; infrared radiation heating is highly efficient and can radiate to the food, enhancing its flavor; electromagnetic heating is highly efficient and energy-saving, and provides uniform heating.

[0017] Optionally, the upper heating assembly includes an upper heating plate, an upper heating element, and a heat insulation component. The upper heating element is fixed to the upper surface of the upper heating plate, and the heat insulation component is located above the upper heating element and connected to the upper heating plate. According to this solution, the upper heating plate, under the action of elastic force, abuts against the inner cover assembly and transfers the heat generated by the upper heating element to the inner cover assembly. The heat insulation component can effectively prevent heat transfer to the liner connected to it, avoiding deformation of the liner due to high temperature.

[0018] Optionally, both the upper heating plate and the heat insulation component are provided with passage openings through which the upper functional device passes. The heat insulation component has a fixing structure around the passage openings, allowing the upper functional device to be detachably mounted on the heat insulation component via the fixing structure. According to this solution, the upper functional device can be mounted on and detached from the heat insulation component for replacement or maintenance. The upper functional device can pass through the passage openings of the upper heating plate and the heat insulation component to reach the inner cover assembly. Furthermore, the heat insulation component effectively blocks heat transfer to the connected upper functional device, preventing deformation and functional impairment due to high temperatures.

[0019] Optionally, the upper functional device is an upper temperature measuring device, used to detect the temperature of the cooking space through a through-hole. According to this solution, the upper temperature measuring device moves together with the upper heating element, and the relative position between the upper temperature measuring device and the inner cover assembly remains fixed. This ensures that even if the cover deforms, the compression of the upper seal of the upper temperature measuring device remains constant, effectively preventing the risk of steam leakage between the upper temperature measuring device and the inner cover assembly. Alternatively, the upper functional device is a float device, used to control the pressure within the cooking space through a through-hole. According to this solution, the float device moves together with the upper heating element, and the relative position between the float device and the inner cover assembly remains fixed. This ensures that even if the cover deforms, the compression of the upper seal of the float device remains constant, effectively preventing the risk of steam leakage between the float device and the inner cover assembly.

[0020] Optionally, the upper temperature measuring device includes an upper temperature measuring element, an upper temperature measuring bracket, and a first upper seal. The upper temperature measuring element is fixed to the upper heating assembly via the upper temperature measuring bracket and extends into the cooking space through a through hole. The first upper seal is fitted onto the upper temperature measuring element and abuts against the inner cover assembly. According to this solution, the upper temperature measuring device can be stably and reliably fixed to the upper heating assembly and detect the temperature of the cooking space. The upper seal of the upper temperature measuring device is easy and reliable to install.

[0021] The float device includes a float valve and a second upper seal. The float valve is fixed to the upper heating assembly, and the second upper seal is located below the float valve and also fixed to the upper heating assembly. The second upper seal abuts against the inner cover assembly. According to this solution, the float device can be stably and reliably fixed to the upper heating assembly and control the pressure within the cooking space. The upper seal of the float device is easy and reliable to install. Attached Figure Description

[0022] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention.

[0023] In the attached image:

[0024] Figure 1 A cross-sectional view of a cooking appliance according to a preferred embodiment of this application;

[0025] Figure 2 for Figure 1 An exploded view of the cooking appliance shown;

[0026] Figure 3 For viewing from the rear side Figure 1 A perspective view of the cooking appliance shown, with the lid removed;

[0027] Figure 4 for Figure 3 The diagram shows a top view of the cover, with the faceplate removed, and positions P1 and P2 indicated by dashed lines;

[0028] Figure 5 for Figure 4 Another top view of the partial cover shown, with positions P3 and P4 indicated by dashed lines;

[0029] Figure 6 for Figure 3 The diagram shows a cross-sectional view of the cover, with the front cover removed.

[0030] Figure 7 for Figure 3 A top view of the transmission arm and drive motor shown;

[0031] Figure 8 for Figure 7 The cross-sectional view of the transmission arm and drive motor shown; and

[0032] Figure 9 Viewed from the front side Figure 1 A perspective view of the cooking appliance shown, with the lid removed and the rotating rack in position P4;

[0033] Figure 10 Viewed from the front side Figure 1 Another perspective view of the cooking appliance shown, with the lid removed and the rotating rack in position P3;

[0034] Figure 11 for Figure 9 The diagram shows a structural schematic of the cover opening assembly, the anti-opening assembly, and the button assembly, wherein the fastener is in the locked position;

[0035] Figure 12 for Figure 10 Another structural diagram of the cover opening assembly, the anti-opening assembly, and the button assembly shown is displayed, in which the fastener is located in the unlocked position;

[0036] Figure 13 for Figure 12 The diagram shows the structure of the rotating frame;

[0037] Figure 14 For the state of being partially dissected Figure 1 A perspective view of the cooking appliance shown, with the fasteners in the locked position;

[0038] Figure 15 for Figure 14 A magnified view of point I in the image;

[0039] Figure 16This is a cross-sectional view of the lid of a cooking appliance according to another preferred embodiment of the present application, wherein the top cover has been removed;

[0040] Figure 17 for Figure 16 A magnified view of part A in the middle;

[0041] Figure 18 for Figure 16 The exploded view of part of the cover shown;

[0042] Figure 19 for Figure 16 3D view of the inner cover assembly;

[0043] Figure 20 for Figure 16 A three-dimensional view of the thermal insulation component;

[0044] Figure 21 for Figure 16 A partial sectional view of the cover shown;

[0045] Figure 22 for Figure 16 A three-dimensional view of the inner liner cover;

[0046] Figure 23 This is a cross-sectional view of the lid of a cooking appliance according to another preferred embodiment of the present application, wherein the top cover has been removed. Detailed Implementation

[0047] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0048] To fully understand this invention, a detailed description will be provided below. Obviously, the implementation of this invention is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this invention are described in detail below; however, other embodiments may also be possible besides these detailed descriptions.

[0049] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0050] The ordinal numbers such as "first" and "second" used in this utility model are merely identifiers and have no other meaning, such as a specific order. Furthermore, for example, the term "first component" does not imply the existence of a "second component," and the term "second component" does not imply the existence of a "first component." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used herein are for illustrative purposes only and are not intended to be limiting. The terms "parallel" / "perpendicular" and similar expressions used in this application encompass both absolute parallel / perpendicular relationships and approximately parallel / perpendicular relationships (e.g., relationships differing from absolute parallel / perpendicular relationships by a range of -5° to +5°), and have equivalent effects.

[0051] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present invention is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art.

[0052] like Figures 1 to 15 As shown, this application provides a cooking appliance. The cooking appliance may include a pot body 100 and a lid 110. The pot body 100 is used for cooking food. The lid 110 is used to cover the pot body 100. For example, the lid 110 is connected to the pot body 100 in an openable and closable manner to cover the pot body 100. When the lid 110 covers the pot body 100, a cooking space is formed between the lid 110 and the pot body 100.

[0053] The pot body 100 includes a pot inner 101 and a heating device 102. The pot inner 101, used to hold food, is removably installed in the pot body 100. When the lid 110 closes the pot body 100, a cooking space is formed between the lid 110 and the pot inner 101. The heating device 102 is located at the bottom of the pot body 100, below the pot inner 101, to heat the food in the pot inner 101. The pot body 100 also includes a base 107, an outer shell 108, and a middle plate 109 that form spaces for accommodating the pot inner 101, heating device 102, etc. The upper end of the outer shell 108 is connected to the middle plate 109, and its lower end is connected to the base 107. The middle plate 109 and the base 107 are internally connected by a plurality of screw posts and a plurality of screws.

[0054] The lid 110 is rotatably connected to the pot body 100 via a pivot about a rotation axis AX. The rotation axis AX is located at one end of the pot body 100 in the front-rear direction D1. A torsion spring is mounted on the pivot, with its two ends abutting against the lid 110 and the pot body 100 respectively, allowing the torsion spring to apply an elastic force to the lid 110 away from the pot body 100. When the lid 110 is opened, it springs upward under the elastic force of the torsion spring and rotates about the pivot.

[0055] The cover 110 includes a top cover 111, a liner 112, and an inner cover assembly 113. The top cover 111 is located on the outermost (i.e., uppermost) side of the cover 110, forming the outer shell of the cover 110. The liner 112 is located below the top cover 111 and is connected to it. For example, the liner 112 can be connected to the top cover 111 via fasteners or snap-fits. The liner 112 is primarily used to centrally mount various functional components of the cover 110 that sense and control the operating status of the cooking appliance, such as sensors. The inner cover assembly 113 is located on the innermost (i.e., lowermost) side of the cover 110 and is located below the liner 112. The inner cover assembly 113 is detachably connected to the liner 112, for example via snap-fits, for easy cleaning and replacement. The inner cover assembly 113 includes an inner cover 113a, a retaining ring 113b, and a pot opening sealing ring 113c. The pot opening sealing ring 113c is fixed to the outer periphery of the inner cover 113a by the retaining ring. When the cover is closed, the pot opening sealing ring 113c abuts against the pot opening 101a of the inner pot 101 to form a seal.

[0056] The cover 110 is provided with a channel assembly for forming a steam passage 110a. Exemplarily, the channel assembly includes a steam valve 114 and a steam seal 116. The steam valve 114 has a vent (not shown) communicating with the outside environment. The cooking space communicates with the external environment through the steam passage 110a to release steam generated during cooking. The steam seal 116 is located below the steam valve 114 and forms a seal between the steam valve 114 and the inner cover 113a.

[0057] The cooking appliance also includes an electrically operated pressure relief device 120. The electrically operated pressure relief device 120 is located on the lid 110 and is used to open and close the steam passage 110a. See also... Figure 2 , Figures 4 to 6 For example, the electric pressure relief device 120 may include a pressure relief assembly 120a having a steam venting passage 110b and an electric drive assembly 120b capable of opening and closing the steam venting passage 110b. The pressure relief assembly 120a is disposed within and communicates with the steam passage 110a in the inner cover assembly 113, and is removable from the cover along with the inner cover assembly 113. The electric drive assembly 120b is disposed in the liner and located on one side of the steam passage 110a in the horizontal direction. Exemplarily, the pressure relief assembly 120a includes a pressure ball 121 for sealing the steam venting passage 110b. The electric drive assembly 120b drives the pressure ball 121 to move between an open position (opening the steam venting passage 110b) and a closed position (closing the steam venting passage 110b). When the pressure ball 121 is in the open position, the steam venting passage 110b is opened, and the steam passage 110a communicates with the cooking space via the steam venting passage 110b. When the pressure ball 121 is in the closed position, the steam venting passage 110b is blocked by the pressure ball 121, and the steam passage 110a is not connected to the cooking space in order to realize the cooking function that requires pressurization or pressure increase.

[0058] The electric drive assembly 120b includes an electric drive element 122 and a push rod 123. One end of the push rod 123 is connected to the output shaft of the electric drive element 122, and the other end abuts against a pressure ball 121. The electric drive element 122 drives the push rod to move linearly to keep the pressure ball 121 in the open position. When the force of the push rod 123 is removed, the pressure ball 121 returns to the closed position under gravity. Optionally, the electric drive element 122 is a push-pull electromagnet.

[0059] See Figure 2 , Figure 4 and Figure 5The cooking appliance may also include a locking / unlocking assembly 130, which enables a tighter seal between the pot opening sealing ring 113c and the pot opening portion 101a. The locking / unlocking assembly 130 includes two or more fastening elements 131, a rotating frame 132, and a drive motor 134. The two or more fastening elements 131 are arranged circumferentially spaced along the inner lid assembly 113, or the inner lid 113a, and each fastening element 131 partially extends beyond the outer periphery of the inner lid assembly 113. The fastening elements 131 are radially movable along the inner lid assembly 113, or the inner lid 113a, between a locked position and an unlocked position. When the fastening element 131 is in the locked position, it engages / hooks onto / encloses the pot opening portion 101a of the inner pot 101 from below, clamping the pot opening portion 101a and the outer periphery of the inner lid assembly 113. This ensures a tighter seal between the pot opening sealing ring 113c and the pot opening 101a, preventing insufficient pressure due to air leakage and thus affecting cooking performance. When the fastener 131 is in the unlocked position, it disengages from the pot opening 101a, allowing the lid to be opened. The rotating frame 132 is rotatably connected to the liner 112 about the first axis AX1 between the third extreme position P3 and the fourth extreme position P4. The first axis extends vertically and passes through the center of the inner cover assembly 113, or more precisely, the center of the inner cover 113a. The fastener 131 is movably connected to the rotating frame 132 and moves radially as the rotating frame 132 rotates. The drive motor 134 drives the rotating frame 132 to rotate.

[0060] It should be noted that the circumferential and radial directions of the inner lid assembly 113 / inner lid 113a in this article are based on the first axis, and therefore can also be described as circumferential and radial directions based on the first axis. In order to hook the pot opening 101a, the fastener 131 may include a clamp for accommodating the pot opening 101a of the inner pot 101 and the outer periphery of the inner lid assembly 113.

[0061] Continue reading Figures 2 to 5 , Figures 9 to 13 The rotating frame 132 is provided with two or more transmission holes 132a corresponding to the fastening member 131. The fastening member 131 is slidably connected to the transmission hole 132a along its extension direction. When the rotating frame 132 rotates, the fastening member 131 moves within the transmission hole and is guided by the transmission hole to move radially between a locked position and an unlocked position. The transmission hole can convert the rotational motion of the rotating frame 132 into the linear motion of the fastening member 131. The transmission hole is an elongated hole and includes at least a straight segment, the angle between the extension direction of the straight segment and the radial direction of the inner cover 113a extending through the fastening member 131 is an acute angle. The rotating frame 132 is drive-connected to the drive motor 134. When the rotating frame 132 rotates to the third limit position P3, the fastening member 131 is in the unlocked position. When the rotating frame 132 rotates to the fourth limit position P4, the fastening member 131 is in the locked position.

[0062] See Figure 4 , Figure 5 The fastening member 131 is connected to the corresponding transmission hole 132a via a guide connector 137. The guide connector 137 may include fasteners such as screws or bolts. The guide connector 137 is connected to the fastening member 131. The guide connector 137 is located within the transmission hole 132a and is movable relative to the transmission hole 132a. The transmission of the rotating frame is transmitted to the fastening member 131 via the guide connector, which is capable of sliding relative to the transmission hole. During the rotation of the rotating frame 132, the fastening member 131 achieves radial movement within the inner cover assembly 113 through the sliding engagement of the guide connector 137 and the transmission hole 132a.

[0063] See Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figures 10 to 12 The cooking appliance may also include a transmission component, through which the output shaft 134a of the drive motor 134 can be connected to the rotating frame 132 to drive the rotating frame 132 to rotate. The transmission component is configured as a rotatable transmission arm 133. Exemplarily, the transmission arm 133 has opposite active ends 133a and driven ends 133b. The transmission arm 133 is rotatable about a second axis located at the active end, and the driven end is connected to the rotating frame 132 and drives the rotating frame 132 to rotate. The second axis extends vertically and is parallel to the first axis. The active end 133a is connected to the output shaft 134a of the drive motor 134 to receive the rotational force of the drive motor to rotate the transmission arm. The rotation direction of the transmission arm 133 is the same as that of the output shaft 134a of the drive motor 134, and the rotation direction of the transmission arm 133 is opposite to that of the rotating frame 132.

[0064] During the rotation of the transmission arm 133 in the first rotation direction R1, the rotating frame 132 rotates in the second rotation direction R2, which is opposite to the first rotation direction R1, causing the fastening member 131 to move towards the locked position. During the rotation of the transmission arm 133 in the second rotation direction R2, the rotating frame 132 rotates in the first rotation direction R1, causing the fastening member 131 to move towards the unlocked position. The power of the drive motor 134 is transmitted to the rotating frame 132 through the transmission arm 133, which facilitates the reasonable arrangement of the positions of the rotating frame 132 and the drive motor 134.

[0065] See Figure 2 , Figure 3 , Figures 4 to 12Optionally, the drive motor 134 can drive the transmission arm 133 to rotate along the second rotation direction R2 to the first limit position P1, thereby causing the rotating frame 132 to rotate to the third limit position P3, and thus causing the fastening member 131 to move to the unlocked position. The drive motor 134 can also drive the transmission arm 133 to rotate along the first rotation direction R1 to the second limit position P2, thereby causing the rotating frame 132 to rotate to the fourth limit position P4, and thus causing the fastening member 131 to move to the locked position.

[0066] See Figure 3 , Figures 4 to 7 , Figures 9 to 12 Optionally, the cooking appliance may also include a force transmission element 135. This force transmission element 135 is connected to the active end 133a. By manually applying a torsional force to the drive arm 133 at the force transmission element 135, the rotating frame 132 can be driven to rotate, thereby moving the fastener 131 to the unlocked position. Here, the force transmission element 135 can be configured as a lever.

[0067] See Figure 7 and Figure 8 Optionally, the driving end 133a has a hole for connecting the output shaft 134a of the drive motor 134. The output shaft 134a is inserted into the hole of the driving end 133a. Exemplarily, the output shaft 134a also has a locking recess 134b, and correspondingly, the inner wall of the hole in the driving end 133a has a locking boss 133a1. Through the cooperation of the locking recess 134b and the locking boss 133a1, the driving end 133a can be locked to the output shaft 134a to prevent the driving end 133a from disengaging from the output shaft 134a.

[0068] See Figure 12 and Figure 13 Furthermore, the rotating frame 132 has a connecting hole 132e. The transmission arm 133 also has a connecting rod 133c. The connecting rod 133c is inserted into the connecting hole 132e. The connecting hole 132e provides allowance for radial movement of the connecting rod 133c relative to the rotating frame 132. For example, the connecting hole 132e can be configured as an elongated shape extending radially based on the first axis AX1, such as an oblong hole, a square hole with rounded corners, etc. The connecting hole 132e can be a through hole or a blind hole. The connecting hole 132e is located at the edge of the rotating frame 132.

[0069] It is understandable that in other examples, the positions of the connecting hole and the connecting rod can be interchanged; that is, the connecting hole can be set in the transmission arm, and the connecting rod can be set in the rotating frame.

[0070] See Figure 4 , Figure 5 and Figure 16Optionally, the cover 110 also includes a float device 136, with a corresponding through hole 181 on the inner cover 113a. The float device 136 controls the pressure within the cooking space via the through hole 181. A rotating frame 132 is located between the liner 112 and the top cover 111. The rotating frame 132 has a limiting hole 132b at a certain distance off the first axis AX1. When the fastener 131 is in the locked position, the limiting hole 132b and the float device 136 are aligned. When pressure is applied to the cooking space, the float 172 in the float device 136 moves upward and inserts into the limiting hole 132b. This prevents the rotating frame 132 from rotating. This prevents the rotating frame 132 from rotating when pressure is applied to the cooking space. When the cooking space is under normal pressure, the float 172 disengages from the limiting hole 132b. At this time, the rotating frame 132 can rotate relative to the liner 112.

[0071] See Figure 11 and Figure 13 For example, the rotating frame 132 includes an annular frame body 132c and support beams 132d. The support beams 132d are staggered and connect to the frame bodies 132c at different positions to form clearance gaps 132g. Two or more fasteners 131 are connected to the frame bodies 132c. The support beams 132d are rotatably connected to the cover 112 at positions through which the first axis AX1 passes. These clearance gaps 132g are designed to avoid interference with electrical structures or mechanical structures such as electrical components, devices, and electrical elements located between the rotating frame 132 and the cover 112, or between the rotating frame 132 and the faceplate 111.

[0072] See Figure 4 , Figure 5 , Figures 9 to 12 , Figures 14 to 15 Optionally, the pot body 100 includes a button assembly 103 and a stop-open assembly 140. The button assembly 103 is located at the front end of the pot body 100. The button assembly 103 is configured to automatically switch to a locked state after the lid 110 is closed with the pot body 100, and to switch to an unlocked state when pressed by an external force, thereby facilitating the opening of the lid 110. The stop-open assembly 140 is used to prevent the button assembly 103 from switching from the locked state to the unlocked state. The rotating frame 132 may include a pushing part 132f. The pushing part 132f is used to abut against the stop-open assembly 140 during the rotation of the rotating frame 132 around the first axis AX1, so that the stop-open assembly 140 can abut against the button assembly 103 when the lid 110 is closed with the pot body 100, thereby preventing or allowing the button assembly 103 from switching from the locked state to the unlocked state.

[0073] With the lid 110 closed on the pot body 100, when the rotating bracket 132 rotates to the position where the fastening member 131 is in the locked position, the pushing part 132f abuts against the anti-opening component 140, preventing the button assembly 103 from switching from the locked state to the unlocked state. This adds an extra layer of safety to the cooking appliance, preventing the button assembly 103 from being accidentally operated when the fastening member 131 is in the locked position, thus improving the safety of the cooking appliance.

[0074] See Figures 9 to 12 Specifically, the button assembly 103 may include a button 104, a lower hook 105, and a first elastic element 106. The button 104 is connected to the lower hook 105. The first elastic element 106 is connected to either the button 104 or the lower hook 105, and is used to directly or indirectly reset the button 104 automatically. That is, the first elastic element 106 is the button's reset elastic element. After the button 104 is reset, the button assembly 103 is in a locked state. The lower hook 105 is rotatably connected to the body 100 at its center, and its lower part is connected to the button. The lower hook 105 is rotatable in the inward and outward directions about a third axis AX3 extending horizontally. The cover 110 is provided with an upper hook 115. The lower hook 105 can rotate between the position where it is hooked onto the upper hook 115 and the position where it is disengaged from the upper hook 115, thereby achieving the purpose of locking and unlocking.

[0075] The stop assembly 140 is in the stop position where the hook 105 is disengaged from the upper hook 115 (see [reference]). Figure 11 ) and the clearance position that allows the lower hook 105 to disengage from the upper hook 115 (see Figure 12 The locking assembly 140 is movably positioned between the upper hook and the lower hook 115. When the lid 110 is closed and the cooking space is pressurized, the locking assembly 140 prevents the lower hook 105 from rotating, keeping it in the locked position hooked to the upper hook 115. This avoids the risk of burns from high-pressure gas due to accidental opening of the lid, improving product safety. Under normal pressure, the locking assembly 140 moves away from the lower hook 105 when the lid is opened, without restricting its rotation, allowing the lid to be opened after unlocking.

[0076] See Figure 11 , Figure 12 , Figure 15The stop assembly 140 is disposed on the cover 112 and located on the front side of the pusher 132f in the circumferential direction. Exemplarily, the stop assembly 140 may include a limiting lever 141, a pivot 142, and a second elastic member 143. The middle portion of the limiting lever 141 is rotatably connected to the cover 112 via the pivot 142 about a fourth axis AX4. The fourth axis AX4 passes through the middle portion of the limiting lever 141 and extends in the front-rear direction, intersecting the circumferential reference line of the pusher 132f. The limiting lever 141 is rotatable between a stop position that prevents the lower hook 105 from disengaging from the upper hook 115 and a clearance position that allows the lower hook 105 to disengage from the upper hook 115. When pushed by the pusher 132f, the limiting lever 141 rotates to the stop position, at which point the lower portion of the limiting lever 141 abuts against the lower hook 105. When the limiting lever 141 separates from the pushing part 132f, it rotates to the avoidance position, at which point the lower part of the limiting lever 141 moves away from the lower hook member 105. A second elastic member 143 is connected between the limiting lever 141 and the cover 112, and is used to apply an elastic force to the limiting lever 141 to rotate towards the avoidance position. In other words, the second elastic member 143 is a reset elastic member for the limiting lever 141. The second elastic member 143 can be, for example, a torsion spring.

[0077] The movement of the stop assembly 140 is achieved through the pusher 132f on the rotating frame 132. Specifically, the limit lever 141 is pushed up and down by the circumferentially moving pusher 132f, thereby blocking and releasing the lower hook 105. The limit lever 141 is separate from the rotating frame 132, allowing these two components to be manufactured and spatially arranged separately, which helps to simplify the structure and optimize the space of the internal components of the cover; the transmission form between the rotating frame 132 and the limit lever 141 is simple and the transmission reliability is higher.

[0078] Specifically, the limiting lever 141 includes a stop portion 141a and a transmission portion 141b located on both sides of the fourth axis AX4. The stop portion 141a and the transmission portion 141b move in opposite directions in the height direction D3. The transmission portion 141b extends horizontally and can abut against the pushing portion 132f in the height direction D3, while the stop portion 141a extends partially downward to abut against the lower hook member 105. The stop portion 141a moves downward until its lower part is located outside the lower hook member 105 to restrict the outward rotation of the lower hook member 105. The limiting lever 141 has a horizontal portion and a vertical portion. The pushing portion 132f of the horizontal portion can cooperate with the transmission portion 141b in the height direction D3, and the stop portion 141a of the vertical portion extends into or away from the position of the lower hook member 105. The overall structure of the limiting lever 141 is simple and easy to manufacture. The transmission unit 141b has a downward-facing transmission surface 141c, which is configured to gradually extend upward from one end near the fourth axis AX4. For example, the transmission surface 141c is an inclined surface, a curved surface, or an arc surface. The surface of the pushing unit 132f that contacts the transmission surface 141c is an inclined surface, a curved surface, or an arc surface with a small circumferential dimension. The pushing unit 132f can abut against the transmission surface 141c from below to push the transmission unit 141b upward. The stop part 141a extends into or away from the lower hook member 105 from the upper side.

[0079] like Figures 16 to 23 As shown, the cover also includes an upper heating element 150 for generating heat. The upper heating element 150 is located above the inner cover assembly 113 and below the liner 112, and can be mounted to the liner 112. The heat generated by the upper heating element 150 can be transferred to the inner cover assembly 113, specifically to the inner cover 113a, to heat the inner cover 113a, thus preventing condensation on the lower surface of the inner cover assembly 113 and heating the top of the cooking space via the inner cover assembly 113. The upper heating element 150 can be an electric heating element, an infrared heating element, an electromagnetic heating element, etc. The illustration shows an example where the upper heating element 150 is an electric heating element.

[0080] like Figure 16 and Figure 18As shown, the upper heating assembly 150 includes an upper heating plate 151, an upper heating element 152, and a heat insulation member 153. The upper heating element 152 is fixed to the upper surface of the upper heating plate 151. The upper heating plate 151 supports the upper heating element 152 and covers it from below, preventing the upper heating element 152 from being exposed inside the cover after the inner cover assembly 113 is removed. Therefore, it can also be called an insulating member. The heat insulation member 153 is located above the upper heating element 152 and is connected to the upper heating plate 151. The heat insulation member 153 can effectively block heat transfer to the cover 112 connected to the upper heating assembly 150, preventing the cover 112 from deforming due to high temperature. The upper heating element 152 can be an electric heating element, an infrared heating element, an electromagnetic heating element, etc. Exemplarily, the outer periphery of the upper heating plate 151 is provided with a retaining foot 154, which can be bent to connect the upper heating plate 151 to the heat insulation member 153.

[0081] To improve the heating efficiency of the inner cover assembly 113, the upper heating assembly 150 preferably abuts against the inner cover assembly 113, allowing heat to be conducted to the inner cover assembly 113 through contact. For this purpose, the upper heating assembly 150 is configured to be movable in the height direction. The movable upper heating assembly 150 eliminates the installation gap between the upper heating assembly 150 and the inner cover assembly 113, as well as gaps caused by deformation of the liner 112. When the inner cover assembly 113 is not installed, the upper heating assembly 150 is in the mounting position of the inner cover assembly 113. When the inner cover assembly 113 is installed, the inner cover assembly 113 abuts against the upper heating assembly 150 to move the upper heating assembly 150 upwards, and after installation, the two abut against each other.

[0082] The cover also includes an elastic element 161. The elastic element 161 is located above and abuts against the upper heating assembly 150. The elastic element 161 provides a downward elastic force to the upper heating assembly 150, keeping the upper heating assembly 150 abutting against the inner cover assembly 113. The downward elastic force provided by the elastic element 161 keeps the relative position between the upper heating assembly 150 and the inner cover assembly 113 fixed and abutting against each other, allowing heat to be conducted to the inner cover assembly 113 through contact, resulting in higher heat transfer efficiency, effectively preventing condensation on the lower surface of the inner cover assembly 113, and effectively heating the top of the cooking space via the inner cover assembly 113. Specifically, the upper heating plate 151, under the action of the elastic force, abuts against the inner cover assembly 113 and transfers the heat generated by the upper heating element 152 to the inner cover assembly 113.

[0083] To control cooking, the lid is equipped with an upper functional device 11, such as an upper temperature measuring device 171. This upper functional device 11 communicates with or contacts the cooking space through a through-hole 13 in the inner lid assembly 113. If the upper functional device 11 is installed on the liner 112, deformation of the liner 112 will cause the upper functional device 11 to deviate upward from the inner lid assembly 113, resulting in a poor seal between the upper functional device 11 and the inner lid assembly 113, which is prone to air leakage. Therefore, the upper functional device 11 is installed on a movable upper heating assembly 150 so that it moves with the upper heating assembly 150. Furthermore, the upper functional device 11 includes an upper sealing member 12, which abuts against the edge of the through-hole 13 to form a seal between the upper functional device 11 and the inner lid assembly 113. The upper functional device 11 moves together with the upper heating assembly 150, and the relative position between the upper functional device 11 and the inner cover assembly 113 remains fixed, so that even if the cover 112 deforms, the compression of the upper seal 12 can remain fixed, ensuring the reliability of the seal between the upper seal 12 and the edge of the through hole 13, and effectively avoiding the risk of steam leakage.

[0084] It should be noted that the upper heating assembly 150 and the device that moves with it constitute a movable upper functional assembly 10. Specifically, the upper functional assembly 10 is located between the inner cover assembly 113 and the liner 112 and is movably connected to the liner 112 in the height direction.

[0085] For example, the upper functional device 11 includes an upper temperature measuring device 171 and the aforementioned float device 136. The upper temperature measuring device 171 is used to detect the temperature of the cooking space via the through-hole 13, and the float device 136 is used to control the pressure within the cooking space via the through-hole 13. Figures 16 to 22 In the example shown, the upper temperature measuring device 171 is mounted on the upper heating assembly 150, and the float device 136 is mounted on the cover 112. In this example, the upper temperature measuring device 171 and the upper heating assembly 150 constitute a movable upper functional assembly 10. Figure 23 In the example shown, both the upper temperature measuring device 171 and the float device 136 are mounted on the upper heating assembly 150. In this example, the upper temperature measuring device 171, the float device 136, and the upper heating assembly 150 constitute a movable upper functional assembly 10. Alternatively, the upper temperature measuring device 171 is mounted on the cover 112, and the float device 136 is mounted on the upper heating assembly 150. In this example, the float device 136 and the upper heating assembly 150 constitute a movable upper functional assembly 10.

[0086] like Figures 16 to 18 As shown, the upper temperature measuring device 171 includes an upper temperature measuring element 173, an upper temperature measuring bracket 174, and a first upper sealing member 175. The upper temperature measuring element 173 is fixed to the heat insulation member 153 via the upper temperature measuring bracket 174 (see [reference]). Figure 17The first upper seal 175 is fitted onto the upper temperature sensing element 173 and abuts against the inner cover 113a. The float device 136 includes a float valve 176 and a second upper seal 177. The float valve 176 is fixed to the liner 112, and the second upper seal 177 is located below the float valve 176 and is also fixed to the liner 112. The second upper seal 177 abuts against the inner cover 113a.

[0087] Figure 19 As shown, the inner cover has a first through hole 164 and a second through hole 165. The upper temperature measuring device 171 corresponds to the position of the first through hole 164, and the upper temperature measuring element 173 extends into the cooking space through the first through hole 164. The float device 136 corresponds to the position of the second through hole 165, and the float valve 176 communicates with the cooking space through the second upper sealing member 177 and the second through hole 165. The upper heating plate 151 and the heat insulation member 153 are both provided with through ports 14, and the upper functional device 11 passes through the through ports 14. Specifically, the upper heating plate 151 is provided with a first through port 181 and a second through port 182 at intervals, and the heat insulation member 153 is provided with a third through port 183 and a fourth through port 184 at intervals. The upper temperature measuring element 173 of the upper temperature measuring device 171 passes through the third through port 183 and the first through port 181 to reach the inner cover 113a. The second upper seal 177 of the float device 136 passes through the fourth passage 184 and the second passage 182 to reach the inner cover 113a.

[0088] like Figure 18 and Figure 21 As shown, the heat insulation element 153 is configured to be movably connected to the cover 112. The elastic element 161 and the upper temperature measuring device 171 are both mounted on the heat insulation element 153. Thus, the entire upper functional assembly 10 is movably connected to the cover 112. The elastic element 161 is sandwiched between the cover 112 and the upper heating assembly 150, and can abut against the lower surface of the cover 112. The heat insulation element 153 effectively blocks heat transfer to the connected structures such as the cover 112, the elastic element 161, and the upper temperature measuring device 171, resulting in lower heat levels in the heat insulation element 153 and these connected structures, thereby preventing deformation of these structures due to high temperatures and affecting their function. When the elastic element 161 is compressed upwards by the upper heating assembly 150, it is blocked by the cover 112, generating a downward elastic force.

[0089] Optionally, such as Figure 18 and Figure 20As shown, the thermal insulation component 153 is provided with at least two mounting posts 155 and at least two limiting members 156 spaced apart. The illustration shows three mounting posts 155 spaced apart and three limiting members 156 corresponding to each mounting post 155. Each mounting post 155 is fitted with an elastic element 161. Each limiting member 156 is connected to the corresponding mounting post 155. The mounting posts 155 at different positions can limit their respective elastic elements 161 to prevent them from moving / wobbling horizontally and keep the elastic elements 161 stably clamped between the thermal insulation component 153 and the cover 112. Thus, the elastic elements 161 at different positions can provide a smooth elastic force, making the up-and-down movement of the upper functional component 10 more stable and reliable.

[0090] The upper heating assembly 150 includes a main body portion 150a and a mounting portion 150b for connection with the cover 112. For the illustrated example, the mounting portion 150b includes a mounting post 155 and a limiting member 156. The main body portion 150a is the portion of the upper heating assembly 150 excluding the mounting portion 150b. The overall thickness of the main body portion 150a can be less than the gap between the inner cover assembly 113 and the cover 112. There is space between the inner cover assembly 113 and the cover 112 for vertical movement of the upper heating assembly 150, ensuring vertical mobility of the upper heating assembly 150.

[0091] like Figure 21 As shown, the upper end of the limiting member 156 can be provided with a hook portion 157, which can be movably hung on the cover 112. Exemplarily, the limiting member 156 includes a locking member 158 and a washer 159. The locking member 158 can be fixedly connected to the mounting post 155. The washer 159 is sleeved on the locking member 158 and located on the upper side of the cover 112. The size of the washer 159 is larger than the outer diameter of the locking member 158, thus forming a hook portion. The upper end of the limiting member 156 is a free end, which can move up and down relative to the cover 112. The heat insulation member 153 can be movably connected to the cover 112 through the limiting member 156, thereby allowing the upper functional component 10 to be movably suspended from the cover 112. Figure 22 As shown, the cover 112 is provided with hook holes 162 corresponding to the limiting member 156, for example, the illustration shows three hook holes 162 arranged at intervals. The limiting member 156 passes through the hook holes 162 to connect with the mounting post 155, and the hook portion 157 is blocked by the edge of the hook hole 162 to limit its position on the upper side of the cover 112. Specifically, the outer diameter of the locking member 158 is smaller than the diameter of the hook hole 162, and the size of the gasket 159 is larger than the diameter of the hook hole 162.

[0092] A heat insulation element 153 has a fixing structure surrounding the passage 14, and an upper temperature measuring device 171 is detachably mounted on the heat insulation element 153 via the fixing structure. The upper temperature measuring device 171 can be mounted on the heat insulation element 153 and is detachable from the heat insulation element 153 for replacement or maintenance. Exemplarily, the fixing structure includes a fixing post 163, to which the upper temperature measuring bracket 174 can be fixed with fasteners such as screws. A cover 112 has a fifth passage 185 and a fixing structure surrounding the fifth passage 185, and a float device 136 is detachably mounted on the cover 112 via the fixing structure. The float device 136 can be mounted on the cover 112 and is detachable from the cover 112 for replacement or maintenance. Exemplarily, the fixing structure includes a fixing post 163, to which the float valve 176 can be fixed with fasteners such as screws. Optionally, the cover 112 also has a sixth passage 186 to avoid the upper temperature measuring device 171.

[0093] like Figure 23 As shown, the installation method of the upper temperature measuring device 171 is the same as... Figures 16 to 22 The installation method of the upper temperature measuring device 171 shown is the same, and will not be described again for the sake of simplicity. The difference is that... Figure 23 In the example shown, the float device 136 is mounted on the upper heating assembly 150. Specifically, the float valve 176 and the second upper seal 177 are both fixed to the heat insulation member 153. The float device 136 moves with the upper heating assembly 150, and the relative position between the float device 136 and the inner cover assembly 113 remains fixed. This ensures that even if the liner 112 deforms, the compression of the upper seal 12 of the float device 136 remains constant, effectively preventing the risk of steam leakage between the float device 136 and the inner cover assembly 113.

[0094] Specifically, the second upper seal 177 is fixed to the edge of the fourth passage 184 of the heat insulation member 153. The heat insulation member 153 is provided with a fixing structure, through which the float device 136 is detachably mounted to the heat insulation member 153. The float device 136 can be mounted to and detached from the heat insulation member 153 for replacement or maintenance. The fixing structure includes, for example, a fixing post 163, to which the float valve 176 can be fixed with fasteners such as screws.

[0095] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Features described in one embodiment may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0096] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are only for illustrative purposes. This utility model is not limited to the above embodiments. Many variations and modifications can be made based on the teachings of this utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A cooking utensil, the cooking utensil comprising a lid (110) and a pot body (100), the lid (110) being closably disposed on the pot body (100) to form a cooking space between the lid (110) and the pot body (100), characterized in that, The cover (110) includes a liner (112), an inner cover assembly (113) with a through hole (13), and an upper functional assembly (10). The upper functional assembly (10) is located between the inner cover assembly (113) and the liner (112) and is movably connected to the liner (112) in the height direction. The upper functional assembly (10) includes: An upper heating assembly (150) configured to be movable relative to the cover (112) in the height direction; and An upper functional device (11) is mounted on the upper heating assembly (150) to move together with the upper heating assembly (150), and the upper functional device (11) includes an upper seal (12) abutting against the edge of the through hole (13).

2. The cooking utensil according to claim 1, characterized in that, The upper functional component (10) further includes an elastic element (161) that provides a downward elastic force to the upper heating component (150) to keep the upper heating component (150) abutting against the inner cover component (113).

3. The cooking utensil according to claim 2, characterized in that, The elastic element (161) is sandwiched between the cover (112) and the upper heating assembly (150), and the elastic element (161) abuts against the lower surface of the cover (112).

4. The cooking utensil according to claim 2, characterized in that, The upper heating assembly (150) includes a heat insulation element (153) configured to be movably connected to the cover (112), and the elastic element (161) and the upper functional device (11) are both mounted on the heat insulation element (153).

5. The cooking utensil according to claim 2, characterized in that, The upper heating assembly (150) includes a heat insulation component (153), which is provided with at least two mounting posts (155) and at least two limiting components (156) spaced apart. Each mounting post (155) is fitted with the elastic element (161), and each limiting component (156) is connected to the corresponding mounting post (155). The upper end of the limiting component (156) is provided with a hook (157), which can be movably hung on the cover (112).

6. The cooking utensil according to claim 5, characterized in that, The cover (112) is provided with a hook hole (162), the limiting member (156) passes through the hook hole (162), and the hook part (157) can abut against the edge of the hook hole (162) to limit it to the upper side of the cover (112).

7. The cooking utensil according to any one of claims 1 to 6, characterized in that, The upper heating assembly (150) includes a main body portion (150a) and a mounting portion (150b) for connection with the cover (112), wherein the overall thickness of the main body portion (150a) is less than the gap between the inner cover assembly and the cover (112); and / or The upper heating component (150) is an electric heating component, an infrared heating component, or an electromagnetic heating component.

8. The cooking utensil according to any one of claims 1 to 6, characterized in that, The upper heating assembly (150) includes an upper heating plate (151), an upper heating element (152), and a heat insulation component (153). The upper heating element (152) is fixed to the upper surface of the upper heating plate (151), and the heat insulation component (153) is located above the upper heating element (152) and connected to the upper heating plate (151).

9. The cooking utensil according to claim 8, characterized in that, Both the upper heating plate (151) and the heat insulation component (153) are provided with a passage (14), the upper functional device (11) passes through the passage (14), and the heat insulation component (153) is provided with a fixing structure around the passage (14). The upper functional device (11) is detachably installed on the heat insulation component (153) through the fixing structure.

10. The cooking utensil according to any one of claims 1 to 6, characterized in that, The upper functional device (11) is an upper temperature measuring device (171) and / or a float device (136). The upper temperature measuring device (171) is used to detect the temperature of the cooking space through the through hole (13), and the float device (136) is used to control the pressure in the cooking space through the through hole (13).

11. The cooking utensil according to claim 10, characterized in that, The upper temperature measuring device (171) includes an upper temperature measuring element (173), an upper temperature measuring bracket (174), and a first upper sealing member (175). The upper temperature measuring element (173) is fixed to the upper heating assembly (150) through the upper temperature measuring bracket (174) and extends into the cooking space through the through hole (13). The first upper sealing member (175) is sleeved on the upper temperature measuring element (173) and abuts against the inner cover assembly (113); and / or The float device (136) includes a float valve (176) and a second upper seal (177). The float valve (176) is fixed to the upper heating assembly (150). The second upper seal (177) is located at the lower part of the float valve (176) and is also fixed to the upper heating assembly (150). The second upper seal (177) abuts against the inner cover assembly (113).

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