Cover and cooking utensil having the same

Abstract

This invention relates to a lid and a cooking appliance, comprising: a main body; a heat-insulating lid with an exhaust port, movably fitted onto the main body and facing the cooking space; and an exhaust mechanism, movably fitted onto the main body and located on the side of the heat-insulating lid facing away from the cooking space, for applying pre-pressure to the exhaust port, the direction of the pre-pressure being opposite to the direction of the gas in the cooking space acting on the exhaust port; wherein, when subjected to cooking pressure in the cooking space, the heat-insulating lid can transmit the force to the exhaust mechanism and move synchronously with the exhaust mechanism relative to the main body. In the above-mentioned lid and cooking appliance, when the heat-insulating lid is subjected to cooking pressure, the heat-insulating lid and the exhaust mechanism move upward synchronously relative to the main body. While ensuring that the rice cooker has a pressure cooking function, the positional relationship between the heat-insulating lid and the exhaust mechanism remains unchanged, ensuring that the constant cooking pressure applied by the exhaust mechanism to the exhaust port does not change, thus making the constant cooking pressure in the cooking space controllable.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking utensils, and in particular to a cover body and a cooking utensil having the same. Background Art

[0002] With the development of society and the progress of science, people are increasingly pursuing quality of life. Cooking utensils such as rice cookers and electric frying pans are widely used in people's daily lives and have become indispensable tools in people's lives.

[0003] The cooking utensil mainly includes a cooking body and a cover body. The cover body is arranged on the cooking body and defines a cooking space with the cooking body. The cover body includes a heat-insulating cover plate, a fixing seat and a pressure-regulating mechanism. The heat-insulating cover plate is arranged facing the cooking space, and an exhaust port is provided on the heat-insulating cover plate. The fixing seat is arranged on the side of the heat-insulating cover plate facing away from the cooking space. The pressure-regulating mechanism is assembled on the fixing seat, and the pressure-regulating mechanism cooperates with the exhaust port to open and close the exhaust port. When the cooking utensil is working, steam will be generated in its cooking space. When the pressure of the steam acting on the pressure-regulating spring of the pressure-regulating mechanism is less than its pre-compression elastic force, the steam cannot be discharged, and then the pressure increases. When the pressure is greater than the pre-compression elastic force of the pressure-regulating spring, the steam is discharged from the cooking space. At this time, the pressure in the cooking space decreases, thereby ensuring that the cooking space is finally under a constant cooking pressure.

[0004] Cooking utensils with micro-pressure function generally include conventional non-pressure cooking function and upper pressure cooking function. When the upper pressure cooking function is used, the pressure in the cooking space increases, and the thermal insulation cover is easily moved upward under the action of pressure, thereby causing the distance between the cover and the fixed seat located above it to change, thereby causing the pre-pressure elastic force of the pressure regulating spring of the pressure regulating mechanism acting on the exhaust port to change, resulting in uncontrollable constant cooking pressure in the cooking space. Summary of the invention

[0005] Based on this, it is necessary to provide a cover body and a cooking utensil having the cover body that can make the constant cooking pressure in the cooking space controllable in order to solve the problem that the constant cooking pressure in the cooking space of the traditional cooking utensil is uncontrollable.

[0006] A cover body, which is matched with a cooking body to form a cooking space, comprises:

[0007] ontology;

[0008] A heat-insulating cover plate with an exhaust port is movably connected to the main body and arranged facing the cooking space;

[0009] An exhaust mechanism, movably connected to the body and located on a side of the heat-insulating cover plate facing away from the cooking space, for applying a pre-pressure to the exhaust port, the direction of the pre-pressure being opposite to the direction in which the gas in the cooking space acts on the exhaust port;

[0010] Wherein, when subjected to the cooking pressure in the cooking space, the heat-insulating cover plate can transmit the force to the exhaust mechanism and move synchronously with the exhaust mechanism relative to the main body.

[0011] In one embodiment, the cover body also includes a fixed seat, which is movably connected to the main body and is located on the side of the thermal insulation cover facing away from the cooking space. The exhaust mechanism is fixedly connected to the fixed seat. The thermal insulation cover can transmit a force to the fixed seat and move synchronously with the fixed seat relative to the main body.

[0012] In one of the embodiments, the thermal insulation cover plate abuts against at least a portion of the fixing seat to transfer the force.

[0013] In one of the embodiments, the fixing seat includes an assembly portion and an abutment portion that are interconnected, the exhaust mechanism is assembled on the assembly portion to apply the pre-pressure to the exhaust port, and the abutment portion abuts against the thermal insulation cover plate.

[0014] In one embodiment, the cover body further includes an abutment column, and the abutment column abuts between the thermal insulation cover plate and the fixing seat.

[0015] In one embodiment, the abutment columns include a plurality of columns, and all of the abutment columns abut between the thermal insulation cover plate and the fixing seat at intervals.

[0016] In one embodiment, the abutment column includes a column body and a limiting portion that are connected to each other, the column body is inserted through and slidably disposed in the main body, and the limiting portion cooperates with the main body to limit the abutment column from detaching from the main body under the action of gravity.

[0017] In one of the embodiments, there is a distance between the fixing seat and the thermal insulation cover plate, the thermal insulation cover plate and the fixing seat are both magnetic, and the magnetic properties of the thermal insulation cover plate and the fixing seat are the same to transfer the force.

[0018] In one of the embodiments, the cover body further includes a heating element, and the heating element is connected to the fixing seat for heating the thermal insulation cover plate.

[0019] In one embodiment, the exhaust mechanism includes an exhaust body and an elastic member, the exhaust body cooperates with the exhaust port, and the elastic member is assembled on the exhaust body to apply pre-pressure to the exhaust port.

[0020] In one embodiment, the cover body further comprises a pressure regulating mechanism, which is drivingly connected to the exhaust mechanism;

[0021] The pressure regulating mechanism is controlled to move relative to the body to change the pre-pressure of the exhaust mechanism acting on the exhaust port.

[0022] A cooking utensil comprises a cooking body and a cover as described in any one of the above items, wherein the cover is openably and closably arranged on the cooking body.

[0023] The above-mentioned cover body and cooking utensil, when the insulation cover is subjected to cooking pressure, the insulation cover and the exhaust mechanism move upward relative to the main body synchronously, while ensuring that the rice cooker has the upward pressure cooking function, the positional relationship between the insulation cover and the exhaust mechanism does not change, and it can be ensured that the constant cooking pressure applied to the exhaust port by the exhaust mechanism does not change, so that the constant cooking pressure in the cooking space can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A cross-sectional view of a cross section of a cover body provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1 An exploded view of the cover shown in FIG.

[0026] Figure 3 for Figure 1 An enlarged view of the cover at point A shown in FIG.

[0027] Figure 4 for Figure 1 An enlarged view of the cover at B shown in FIG.

[0028] Figure 5 for Figure 1 A structural diagram of the abutment post of the cover shown in ;

[0029] Figure 6 for Figure 1 A sectional view of another cross section of the cover body shown in ;

[0030] Figure 7 for Figure 6 An enlarged view of the cover at point C shown in FIG.

[0031] Figure 8 for Figure 1 The assembly diagram of the cover shown in ;

[0032] Fig. 9 for Figure 8 An enlarged view of point D of the cover is shown in FIG.

[0033] Cover 100 Body 10 Inner cover 11 Assembly hole 111 Insulation cover 20 Exhaust port 21 Heating element 30 Winding reel 31 Fixing seat 40 Assembly portion 41 Abutment portion 42 Abutment column 50 Column 51 Limiting portion 52 First buckle portion 521 Exhaust mechanism 60 Sealing element 61 Elastic element 62 Pressure regulating mechanism 70 First matching element 80 First cylinder 81 First extension column 82 First inclined surface 90 Pressure relief mechanism 110 Second matching element 120 Second cylinder 121 Second extension column 122 Second inclined surface 130 DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] See also Figure 1 An embodiment of the present invention provides a cooking utensil, comprising a cooking body (not shown) and a cover 100, wherein the cover 100 is disposed on the cooking body and defines a cooking space with the cooking body. Specifically, the cooking utensil may be an electric rice cooker or other types of cooking utensil, such as an electric steamer, which is not limited here.

[0038] The following is an example of an electric rice cooker to illustrate the technical solution of the present invention in detail. This embodiment is only used as an example and does not limit the technical scope of the present invention. Furthermore, the drawings in the embodiments also omit unnecessary components and clearly show the technical features of the present invention.

[0039] The cover body 100 includes a main body 10, a heat preservation cover plate 20 and a heating element 30. The main body 10 is arranged at the opening of the cooking main body and is used to open and close the cooking main body according to user operation. The heat preservation cover plate 20 is matched with the main body 10 and is arranged facing the cooking space. The heating element 30 is matched with the main body 10 and is located on the side of the heat preservation cover plate 20 facing away from the cooking space. Among them, the heating element 30 is used to heat the heat preservation cover plate 20 after power is turned on, thereby heating the evaporated water vapor attached to the heat preservation cover plate 20 to prevent water from dripping back onto the rice surface of the inner pot, so as to ensure that the cooked rice is more fragrant and sweet.

[0040] Specifically, when the cooking pressure in the cooking space is applied, the heat preservation cover 20 can transfer the force to the heating element 30 and move synchronously with the heating element 30 relative to the body 10. That is, when the electric rice cooker uses the upper pressure cooking function, the cooking pressure in the cooking space increases, and the heat preservation cover 20 will move upward (moving away from the cooking body) under the action of the cooking pressure. During the upward movement of the heat preservation cover 20, the force can be transferred to the heating element 30, so that the heating element 30 and the heat preservation cover 20 move synchronously relative to the body 10.

[0041] Through the above arrangement, when the heat preservation cover 20 is subjected to cooking pressure, the heat preservation cover 20 and the heating element 30 move upwards synchronously relative to the main body 10, while ensuring that the electric rice cooker has the upper pressure cooking function, it can also be ensured that the distance (including zero distance) between the heat preservation cover 20 and the heating element 30 will not change, so that the heating function of the heating element 30 on the heat preservation cover 20 will not change, so that the taste of the food in the cooking space will remain consistent and will not be affected.

[0042] See also Figure 1 and Figure 2 In one embodiment, the cover body 100 further includes a fixing seat 40, which is movably coupled to the body 10 and is located on the side of the heat preservation cover 20 facing away from the cooking space, and the heating element 30 is fixedly connected to the fixing seat 40. The heat preservation cover 20 can transmit a force to the fixing seat 40 and move synchronously with the fixing seat 40 relative to the body 10. That is, in this embodiment, the heat preservation cover 20 transmits a force to the fixing seat 40, and the fixing seat 40 drives the heating element 30 and the heat preservation cover 20 to move synchronously relative to the body 10. It is conceivable that in some other embodiments, the fixing seat 40 can be omitted, and in this case, the heat preservation cover 20 directly transmits a force to the heating element 30 to move synchronously with the heating element 30 relative to the body 10, which is not limited here.

[0043] Specifically, the body 10 includes an inner cover 11, and the heat preservation cover plate 20 and the fixing seat 40 are respectively matched on the opposite sides of the inner cover 11 to facilitate the assembly of the heat preservation cover plate 20 and the fixing seat 40. When subjected to the cooking pressure in the cooking space, the heat preservation cover plate 20 can transmit the force to the fixing seat 40 and move synchronously with the fixing seat 40 relative to the inner cover 11. It can be understood that in other embodiments, the heat preservation cover plate 20 and the fixing seat 40 can also be assembled on the same side of the inner cover 11 (the heat preservation cover plate 20 and the fixing seat 40 are both assembled on the side of the inner cover 11 facing the cooking space), or in other embodiments, the body 10 can also omit the inner cover 11, which is not limited here.

[0044] In one embodiment, the heating element 30 is an electromagnetic heating element, and accordingly, the heat-insulating cover plate 20 is a magnetic conductive element. When the electromagnetic heating element 30 is powered on, a magnetic field is generated, and the magnetic heat-insulating cover plate 20 generates heat when it senses the magnetic field. Figure 3 Specifically, the heating element 30 includes a winding drum 31 and a winding coil, and the winding coil is arranged on the winding drum 31. When the winding coil is energized, a magnetic field is generated, and the magnetic insulation cover plate 20 generates heat when it senses the above magnetic field.

[0045] In other embodiments, the heating element 30 may also be a resistance heating element, which generates heat by itself and transfers the heat to the heat-insulating cover plate 20. Specifically, when the heating element 30 is a resistance heating element 30, the position of the inner cover 11 facing the heating element 30 is hollowed out to facilitate heat transfer, or when the heating element 30 is a resistance heating element 30, the heating element 30 and the heat-insulating cover plate 20 are both arranged on the side of the inner cover 11 facing the cooking space.

[0046] In one embodiment, the insulation cover 20 abuts against at least part of the fixing seat 40 to transfer the force. That is, the insulation cover 20 is in at least part contact with the fixing seat 40. When the insulation cover 20 is subjected to the cooking pressure of the cooking space, the insulation cover 20 can transfer the force to the fixing seat 40 through the part in contact with the fixing seat 40, so as to promote the fixing seat 40 and the insulation cover 20 to move synchronously relative to the body 10.

[0047] See also Figure 3 and Figure 4 Specifically, the fixing seat 40 includes an assembly portion 41 and an abutment portion 42 connected to each other, a distance is provided between the assembly portion 41 and the heat preservation cover plate 20, the heating element 30 is assembled on the assembly portion 41, and the abutment portion 42 abuts against the heat preservation cover plate 20. It can be understood that in some other embodiments, the assembly portion 41 and the heat preservation cover plate 20 may also be in direct contact, which is not limited here.

[0048] In a specific embodiment, the cover body 100 further includes an abutment column 50, which abuts between the abutment portion 42 of the fixing seat 40 and the thermal insulation cover plate 20, and the thermal insulation cover plate 20 is indirectly abutted against the fixing seat 40 through the abutment column 50. It is conceivable that in some other embodiments, the thermal insulation cover plate 20 and the fixing seat 40 may also be directly abutted, that is, in this case, the abutment column 50 will serve as a part of the thermal insulation cover plate 20 or the fixing seat 40, which is not limited here.

[0049] Specifically, the abutment portion 42 of the fixed seat 40 is arranged around the outside of the assembly portion 41, and the abutment columns 50 include multiple ones. All the abutment columns 50 abut between the abutment portion 42 and the insulation cover plate 20 along the surrounding direction of the abutment portion 42 around the assembly portion 41 to increase the stability of the abutment between the insulation cover plate 20 and the fixed seat 40.

[0050] See also Figure 4 Furthermore, in order to facilitate the assembly of the abutment column 50, an assembly hole 111 is opened on the inner cover 11, and the abutment column 50 is assembled in the assembly hole 111, and its two end surfaces along the axial direction are respectively abutted against the insulation cover plate 20 and the fixing seat 40.

[0051] Meanwhile, the inventors have found that since the thermal insulation cover 20 needs to be disassembled and cleaned after being used for a certain period of time, when the thermal insulation cover 20 is disassembled from the cover body 100, the abutment column 50 is easily detached from the cover body 100 under the action of gravity.

[0052] See also Figure 5 In order to prevent the above situation from happening, the abutment column 50 includes a column body 51 and a limiting portion 52 which are connected to each other. The column body 51 is passed through and slidably arranged in the assembly hole 111 of the inner cover 11. The limiting portion 52 cooperates with the inner cover 11 to limit the abutment column 50 from detaching from the inner cover 11 under the action of gravity.

[0053] Specifically, the limiting portion 52 includes a first snap portion 521, and the inner cover 11 is provided with a second snap portion (not shown) that cooperates with the first snap portion 521. The first snap portion 521 is snapped and fixed with the second snap portion, and when the thermal insulation cover 20 is assembled on the inner cover 11 and is subjected to the cooking pressure in the cooking space, the cooperation between the first snap portion 521 and the second snap portion will not limit the upward movement of the abutment column 50 relative to the inner cover 11.

[0054] In one embodiment, there is a gap between the heat preservation cover plate 20 and the fixing seat 40, and both the heat preservation cover plate 20 and the fixing seat 40 are magnetic, and the heat preservation cover plate 20 and the fixing seat 40 have the same magnetism. When the heat preservation cover plate 20 is subjected to the cooking pressure in the cooking space, a repulsive force is generated between the two. At this time, the fixing seat 40 moves upward relative to the inner cover 11 together with the heating element 30 under the action of the repulsive force. With this arrangement, the heat preservation cover plate 20 and the fixing seat 40 can transmit the force in a non-contact manner.

[0055] See also Figure 6 and Figure 7 In one embodiment, the heat preservation cover plate 20 is provided with an exhaust port 21, and the cover body 100 further includes an exhaust mechanism 60, which is mounted on the fixing seat 40 and is used to apply pre-pressure to the exhaust port 21, and the direction of the pre-pressure is opposite to the direction in which the gas in the cooking space acts on the exhaust port 21. When subjected to the cooking pressure of the cooking space, the heat preservation cover plate 20 can transmit the force to the fixing seat 40, and the fixing seat 40 drives the exhaust mechanism 60 and the heat preservation cover plate 20 to move synchronously with the inner cover 11. It can be understood that in other embodiments, the heat preservation cover plate 20 can also directly transmit the force to the exhaust mechanism 60, so as to move synchronously with the exhaust mechanism 60 relative to the body 10, which is not limited here.

[0056] Through the above arrangement, when the heat-insulating cover 20 is subjected to cooking pressure, the heat-insulating cover 20 and the exhaust mechanism 60 move upwards relative to the main body 10 synchronously, thereby ensuring that the electric rice cooker has the upward pressure cooking function and ensuring that the constant cooking pressure applied by the exhaust mechanism 60 to the exhaust port 21 does not change, so that the constant cooking pressure in the cooking space can be controlled.

[0057] In a specific embodiment, at least a portion of the exhaust mechanism 60 is accommodated in the spacing between the assembly portion 41 and the thermal insulation cover plate 20. It is understandable that in some other embodiments, the exhaust mechanism 60 may also be selectively disposed outside the above spacing, which is not limited herein.

[0058] In one embodiment, the exhaust mechanism 60 includes an exhaust body (not shown) and an elastic member 62, the elastic member 62 is assembled on the exhaust body, and the exhaust body is used to open or close the exhaust port 21. Specifically, when the pressure generated by the steam in the cooking space is less than the pre-compression elastic force of the elastic member 62, the exhaust body closes the exhaust port 21, and when the pressure generated by the steam in the cooking space is greater than the pre-compression elastic force of the elastic member 62, the exhaust body opens the exhaust port 2112, so that the cooking space is finally under a constant cooking pressure. In this specific embodiment, the elastic member 62 is a spring.

[0059] The exhaust body includes a sealing member 61, one end of which is used to open or close and seal the exhaust port 21, and an elastic member 62 is fixedly connected to the sealing member 61 so that the sealing member 61 applies a pre-pressure to the exhaust port 21. Specifically, when the pressure generated by the steam in the cooking space is less than the pre-pressure elastic force of the elastic member 62, the sealing member 61 closes and seals the exhaust port 21, and when the pressure generated by the steam in the cooking space is greater than the pre-pressure elastic force of the elastic member 62, the sealing member 61 is deformed under the pressure generated by the steam and compresses the elastic member 62 to open the exhaust port 21, so that the cooking space is finally under a constant cooking pressure.

[0060] It is understandable that in another embodiment, the exhaust mechanism 60 may also omit the elastic member 62, and the exhaust mechanism 60 closes the exhaust port 21 under the action of its own weight. Specifically, when the pressure generated by the steam in the cooking space is less than the gravity of the exhaust mechanism 60, the exhaust mechanism 60 closes the exhaust port 21, and when the pressure generated by the steam in the cooking space is greater than the gravity of the exhaust mechanism 60, the exhaust mechanism 60 opens the exhaust port 21. It is conceivable that in some other embodiments, the exhaust mechanism 60 may also be set to close the exhaust port 21 under the dual action of its own weight and pre-compression elastic force. Specifically, when the pressure generated by the steam in the cooking space is less than the self-weight and pre-compression elastic force of the exhaust mechanism 60, the exhaust mechanism 60 closes the exhaust port 21, and when the pressure generated by the steam in the cooking space is greater than the self-weight and pre-compression elastic force of the exhaust mechanism 60, the exhaust mechanism 60 opens the exhaust port 21.

[0061] See also Figure 8 The cover body 100 also includes a pressure regulating mechanism 70, which is assembled on the side of the inner cover 11 away from the thermal insulation cover plate 20 and is transmission-connected to the exhaust mechanism 60. The pressure regulating mechanism 70 is controlled to move relative to the inner cover 11 to change the pre-pressure of the exhaust mechanism 60 acting on the exhaust port 21.

[0062] The pressure regulating mechanism 70 is controlled to reciprocate along the first direction relative to the inner cover 11 to change the pre-pressure of the exhaust mechanism 60 acting on the exhaust port 21 along the second direction. More specifically, the first direction and the second direction can be parallel or intersecting, which is not limited here.

[0063] For ease of explanation, the exhaust mechanism 60 includes an exhaust body and an elastic member 62. The elastic member 62 can be compressed to different degrees along the second direction relative to the thermal insulation cover 20 under the action of the pressure regulating mechanism 70, so as to change the pre-compression elastic force of the sealing member 61 acting on the exhaust port 21 as an example for explanation.

[0064] Through the above arrangement, the pressure regulating mechanism 70 can adjust the compression degree of the elastic member 62 along the second direction, thereby adjusting the pre-compression elastic force of the exhaust mechanism 60 acting on the exhaust port 21. Since the pre-compression elastic force of the exhaust mechanism 60 acting on the exhaust port 21 is adjustable, the exhaust pressure required for the exhaust mechanism 60 to open the exhaust port 21 is adjustable, so that a plurality of different constant cooking pressures can be provided in the cooking space, meeting people's needs.

[0065] It can be understood that in other embodiments, when the exhaust mechanism 60 closes the exhaust port 21 under the action of its own weight, the pressure regulating mechanism 70 can adjust the gravity of the exhaust mechanism 60, such as the exhaust mechanism 60 includes multiple parts. When the regulating mechanism reciprocates relative to the inner cover 11 in the first direction, a part of the exhaust mechanism 60 can be lifted or lowered in the second direction to change the weight of the exhaust mechanism 60, thereby adjusting the pre-pressure gravity of the exhaust mechanism 60 acting on the exhaust port 21.

[0066] In one embodiment, the first direction intersects with the second direction. Specifically, the first direction and the second direction are arranged perpendicularly, such as when the pressure cooking device is placed on a horizontal work surface, the first direction is the horizontal cross-sectional direction of the pressure cooking device, and the second direction is the height cross-sectional direction of the pressure cooking device. It can be understood that in other embodiments, the first direction and the second direction may also be arranged non-perpendicularly, which is not limited here.

[0067] Furthermore, the pressure regulating mechanism 70 performs reciprocating linear motion along the first direction relative to the inner cover 11. It can be understood that in other embodiments, the pressure regulating mechanism 70 can also perform reciprocating curved motion along the first direction relative to the inner cover 11, which is not limited here.

[0068] Continue reading Figure 7 The cover body 100 further includes a first matching member 80 and a first actuating structure. The first matching member 80 is mounted on one of the exhaust mechanism 60 and the pressure regulating mechanism 70, and the first actuating structure is mounted on the other of the exhaust mechanism 60 and the pressure regulating mechanism 70. Thus, when the pressure regulating mechanism 70 moves in a first direction relative to the inner cover, the exhaust mechanism 60 is driven to act on the exhaust port 21 in a second direction relative to the inner cover by the first matching member 80 and the first actuating structure.

[0069] In one embodiment, the first actuating structure is configured as a first inclined portion that is inclined relative to the first direction and the second direction, and the first mating piece 80 is configured as a sliding piece or a rolling piece. The exhaust mechanism 60 and the pressure regulating mechanism 70 are engaged in sliding or rolling friction with the first actuating structure and the first mating piece 80 to drive the exhaust mechanism 60 to act on the exhaust port 21 along the second direction relative to the inner cover.

[0070] See also Fig. 9Specifically, the first inclined portion is configured as a first inclined surface 90 that is inclined relative to both the first direction and the second direction. It can be understood that in other embodiments, the first inclined portion is configured as two first sub-inclined surfaces that are inclined relative to both the first direction and the second direction, and the two first sub-inclined surfaces are connected to form a V-shape with an uphill section and a downhill section, so that the exhaust mechanism 60 can be controlled by moving in both directions (reciprocating direction in the first direction).

[0071] The first inclined surface 90 of the first actuating structure is formed on the pressure regulating mechanism 70, and the first matching member 80 (rolling member or sliding member) is assembled on one end of the exhaust mechanism 60 that abuts against the pressure regulating mechanism 70, so that when the pressure regulating mechanism 70 moves relative to the inner cover, a component force of the first inclined surface 90 of the first actuating structure acting on the first matching member 80 will drive the first matching member 80 to drive the elastic member 62 to be compressed and deformed along the second direction relative to the inner cover. It can be understood that in another embodiment, the first inclined surface 90 of the first actuating structure can also be formed on the exhaust mechanism 60, and the first matching member 80 is assembled on the pressure regulating mechanism 70, which is not limited here.

[0072] Continue reading Figure 7 The first matching member 80 includes a first cylinder 81 with a top wall and a first extension column 82 extending from the outer wall of the first cylinder 81. The first cylinder 81 is sleeved on the end of the elastic member 62 that is not connected to the sealing member 61, and the first inclined surface 90 is matched with the first extension column 82. In this way, when the pressure regulating mechanism 70 reciprocates relative to the inner cover along the first direction, the pre-compression elastic force of the elastic member 62 on the sealing member 61 can be adjusted under the cooperation of the first inclined surface 90 and the first extension column 82, so that the cooking space can have a plurality of different constant cooking pressures, meeting people's needs.

[0073] See also Figure 8 The cover body 100 also includes a pressure relief mechanism 110, which can reciprocate along a first direction relative to the inner cover. The pressure relief mechanism 110 cooperates with the exhaust mechanism 60, and the exhaust mechanism 60 can move along a second direction relative to the inner cover under the action of the pressure relief mechanism 110, so that the exhaust mechanism 60 can fully open the exhaust port 21.

[0074] Through the above arrangement, the cover body 100 can not only adjust the constant cooking pressure in the cooking space through the pressure regulating mechanism 70 , but also achieve complete pressure relief in the cooking space through the pressure relief mechanism 110 .

[0075] The pressure relief mechanism 110 and the pressure regulating mechanism 70 are integrally arranged, so that the pressure relief mechanism 110 and the pressure regulating mechanism 70 can be driven together to reciprocate along the first direction. It is conceivable that in some other embodiments, the pressure relief mechanism 110 and the pressure regulating mechanism 70 can also be separately arranged, which is not limited here.

[0076] Continue reading Figure 7 The cover body 100 further includes a second matching member 120 and a second actuating structure. The second matching member 120 is mounted on one of the exhaust mechanism 60 and the pressure relief mechanism 110, and the second actuating structure is mounted on the other of the exhaust mechanism 60 and the pressure relief mechanism 110. Thus, when the pressure relief mechanism 110 moves relative to the inner cover in the first direction, the second matching member 120 cooperates with the second actuating structure to drive the exhaust mechanism 60 to move relative to the inner cover in the second direction to open the exhaust port 21 and achieve complete pressure relief.

[0077] In one embodiment, the second actuating structure is configured as a second inclined portion that is inclined relative to the first direction and the second direction, and the second mating piece 120 is configured as a sliding piece or a rolling piece. The exhaust mechanism 60 and the pressure relief mechanism 110 are matched through sliding or rolling friction between the second actuating structure and the sliding piece to drive the exhaust mechanism 60 to move relative to the inner cover along the second direction to open the exhaust port 21 to achieve complete pressure relief.

[0078] See also Fig. 9 Specifically, the second inclined portion is configured as a second inclined surface 130 that is inclined relative to both the first direction and the second direction.

[0079] The second inclined surface 130 of the second actuating structure is formed on the pressure relief mechanism 110, and the second matching member 120 (rolling member or sliding member) is assembled on one end of the exhaust mechanism 60 that abuts against the pressure relief mechanism 110, so that when the pressure relief mechanism 110 moves relative to the inner cover, a component force of the second inclined surface 130 of the second actuating structure acting on the second matching member 120 will drive the second matching member 120 to drive the exhaust mechanism 60 to move relative to the inner cover along the second direction to achieve complete pressure relief. It can be understood that in another embodiment, the second inclined surface 130 of the second actuating structure can also be opened on the exhaust mechanism 60, and the second matching member 120 is assembled on the pressure relief mechanism 110, which is not limited here.

[0080] In a specific embodiment, the second inclined surface 130 is disposed on the pressure relief mechanism 110, and the second matching member 120 is disposed on the exhaust mechanism 60. Figure 7Specifically, the second matching member 120 includes a second cylinder 121 and a second extension column 122 extending from the outer wall of the second cylinder 121. One end of the second cylinder 121 is fixedly connected to the sealing member 61. One end of the elastic member 62 is fixedly sleeved in the second cylinder 121, that is, one end of the elastic member 62 is fixedly connected to the sealing member 61 through the second cylinder 121. The other end of the second cylinder 121 is sleeved in the first cylinder 81. The first cylinder 81 is provided with a guide groove along the axial direction. The first extension column 82 can move in the guide groove. The second inclined surface 130 cooperates with the second extension column 122. In this way, when the pressure relief mechanism 110 moves relative to the inner cover along the first direction, the exhaust mechanism 60 can be completely separated from the exhaust port 21 under the cooperation of the second inclined surface 130 and the second extension column 122, so as to achieve complete pressure relief in the cooking space.

[0081] An embodiment of the present invention further provides a cover 100 included in the above cooking utensil.

[0082] The cover 100 and the cooking utensil provided by the embodiment of the present invention have the following beneficial effects:

[0083] 1. When subjected to the cooking pressure in the cooking space, the heat-insulating cover plate 20 can transmit the force to the heating element 30 and move synchronously with the heating element 30 relative to the body 10, so that the positional relationship between the heat-insulating cover plate 20 and the heating element 30 does not change, and the heating function of the heating element 30 on the heat-insulating cover plate 20 does not change, so that the taste of the food in the cooking space will remain consistent and will not be affected;

[0084] 2. When subjected to the cooking pressure in the cooking space, the thermal insulation cover 20 can transmit the force to the exhaust mechanism 60 and move synchronously with the exhaust mechanism 60 relative to the main body 10. In this way, the positional relationship between the thermal insulation cover 20 and the exhaust mechanism 60 does not change, thereby ensuring that the constant cooking pressure applied by the exhaust mechanism 60 to the exhaust port 21 will not change (i.e., the constant cooking pressure applied by the exhaust mechanism 60 to the exhaust port 21 will not change under the action of the thermal insulation cover 20), so that the constant cooking pressure in the cooking space can be controlled.

[0085] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A cover body, which is matched with a cooking body to form a cooking space, characterized in that: include: Ontology(10); A heat-insulating cover plate (20) provided with an exhaust port (21), movably coupled to the body (10) and arranged facing the cooking space; A fixing seat (40) is movably connected to the main body (10) and is located on a side of the heat-insulating cover plate (20) facing away from the cooking space. an exhaust mechanism (60) fixedly connected to the fixing seat (40) and located on a side of the heat-insulating cover plate (20) facing away from the cooking space, and used for applying a pre-pressure to the exhaust port (21), wherein the direction of the pre-pressure is opposite to the direction in which the gas in the cooking space acts on the exhaust port (21); When subjected to cooking pressure in the cooking space, the heat-insulating cover plate (20) can transmit a force to the fixing seat (40) and move synchronously with the fixing seat (40) and the exhaust mechanism (60) relative to the main body (10).

2. The cover according to claim 1, characterized in that: The heat-insulating cover plate (20) abuts against at least a portion of the fixing seat (40) to transfer the acting force.

3. The cover according to claim 2, characterized in that: The fixing seat (40) comprises an assembly portion (41) and an abutment portion (42) which are connected to each other, the exhaust mechanism (60) is assembled on the assembly portion (41) to apply the pre-pressure to the exhaust port (21), and the abutment portion (42) abuts against the thermal insulation cover plate (20).

4. The cover according to claim 2 or 3, characterized in that: The cover body further comprises an abutment column (50), wherein the abutment column (50) abuts between the heat-insulating cover plate (20) and the fixing seat (40).

5. The cover according to claim 4, characterized in that: The abutment columns (50) include a plurality of columns, and all of the abutment columns (50) abut between the heat-insulating cover plate (20) and the fixing seat (40) at intervals.

6. The cover according to claim 4, characterized in that: The abutting column (50) comprises a column body (51) and a limiting portion (52) which are connected to each other. The column body (51) is inserted into and slidably disposed in the body (10). The limiting portion (52) cooperates with the body (10) to limit the abutting column (50) from being separated from the body (10) under the action of gravity.

7. The cover according to claim 1, characterized in that: There is a distance between the fixing seat (40) and the heat-insulating cover plate (20), the heat-insulating cover plate (20) and the fixing seat (40) are both magnetic, and the magnetism of the heat-insulating cover plate (20) and the fixing seat (40) is the same to transmit the acting force.

8. The cover according to claim 1, characterized in that: The cover body further comprises a heating element (30), wherein the heating element (30) is connected to the fixing seat (40) and is used for heating the heat-insulating cover plate (20).

9. The cover according to claim 1, characterized in that: The exhaust mechanism (60) comprises an exhaust body and an elastic member (62), the exhaust body cooperates with the exhaust port (21), and the elastic member (62) is assembled on the exhaust body so as to apply pre-pressure to the exhaust port (21).

10. The cover according to claim 1, characterized in that: The cover body further comprises a pressure regulating mechanism (70) which is drivingly connected to the exhaust mechanism (60); The pressure regulating mechanism (70) is controlled to move relative to the body (10) to change the pre-pressure of the exhaust mechanism (60) acting on the exhaust port (21).

11. A cooking utensil, characterized in that: The cooking device comprises a cooking body and a cover body as described in any one of claims 1 to 10, wherein the cover body is openably and closably arranged on the cooking body.

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