Pressure release valve and cooking container

Abstract

The utility model relates to a pressure release valve and a cooking container, the pressure release valve comprises a first main body part and a moving part, the first main body part is provided with a containing cavity, and the containing cavity is used for communicating the interior and the exterior of the cooking container. At least part of the moving part is located in the containing cavity and used for controlling opening and closing of the containing cavity. A first limiting part is arranged on the side wall of the containing cavity, the moving part comprises a first body part and a sealing piece, and the first body part can move relative to the first body part in the first direction and the second direction. The reset piece is used for resetting the first body part to be disconnected from the sealing piece. When the first body part moves in the first direction, the first body part can drive the sealing piece to move from the first position to the second position. Therefore, the accommodating cavity is opened. When the reset part drives the first body part to reset, the first limiting part is used for limiting the sealing part from moving to the first position from the second position. Through the design, the pressure release valve cannot automatically reset, and the safety can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of cooking appliances, and in particular to a pressure relief valve and a cooking container. Background Art

[0002] Cooking containers such as pressure cookers are commonly used in people's lives. When cooking, the cooking efficiency can be improved by increasing the pressure inside the cooking container. When the internal pressure of the cooking container is too high, there is a great safety hazard. In order to improve the safety of the cooking container, a window structure is usually opened on the side of the container cover, and a rubber ring is arranged inside along the circumference of the container cover to cover the window structure. When the pressure inside the cooking container is too high, the airflow will impact the rubber ring, causing the rubber ring to deform, thereby removing the cover on the window and exhausting the air. However, the rubber ring is prone to aging during use, which affects the exhaust, and the lateral exhaust can easily cause the cooking container to tip over, bringing new safety hazards. Utility Model Content

[0003] In view of this, the present application provides a pressure relief valve and a cooking container, so as to solve the problem of poor safety of cooking containers in the prior art.

[0004] In a first aspect, an embodiment of the present application provides a pressure relief valve, which is applied to a cooking container, and the pressure relief valve includes:

[0005] A first main body portion, the first main body portion comprising a receiving cavity;

[0006] a moving part, at least a part of which is located in the accommodating cavity, and the moving part is movable relative to the first main body part, and is used to control the opening and closing of the accommodating cavity;

[0007] In which, a first limiting portion is provided on the side wall of the accommodating cavity, the movable portion includes a first main body portion and a sealing member, the first main body portion can move in a first direction and a second direction opposite to the first direction, and the first main body portion can drive the sealing member to move from a first position to a second position when moving in the first direction, the pressure relief valve includes a reset member, the reset member is connected to the first main body portion, and is used to drive the first main body portion to move in the second direction and reset so that the first main body portion is disconnected from the sealing member, when the sealing member is in the first position, the accommodating cavity is in a closed state, and when the sealing member is in the second position, the accommodating cavity is in an open state, and the first limiting portion is used to limit the movement of the sealing member from the second position to the first position.

[0008] In the solution provided by the embodiments of the present application, the pressure relief valve can remain open after being opened, so that when a cooking container fails, the pressure inside the cooking container can be reduced, improving safety. Moreover, since the pressure relief valve cannot automatically reset after being opened, the user can judge whether there is a fault in the cooking container by observing the state of the pressure relief valve. When the pressure relief valve is in the open state, it indicates that there may be a fault in the cooking container, resulting in excessive internal pressure, exceeding the safe pressure range, so that the user can be prompted to handle it in time to avoid accidents, which is conducive to reducing potential safety hazards. Moreover, compared with the pressure relief valve method of opening a window laterally, by providing a pressure relief valve in the cooking container, the position of the pressure relief valve can be set according to requirements, so that the exhaust direction during pressure relief can be adjusted to reduce the possibility of the cooking container tipping over during pressure relief, which is conducive to further improving the safety of the cooking container. The reset member can be an elastic member such as a spring. When the internal pressure of the cooking container is too high, the gas inside the cooking container will push the moving member to move, causing the reset member to deform. When the restoring force of the reset member can act on the moving part, it can play a buffering role, reducing the exhaust noise and impact force, and better meeting the actual use requirements.

[0009] In a possible implementation manner, the first limiting portion protrudes into the accommodating cavity, the sealing member is an elastic member, and when the sealing member moves from the first position to the second position, the sealing member deforms, and when the sealing member reaches the second position, the sealing member restores its deformation, and the sealing member abuts against the first limiting portion along the second direction.

[0010] Through such a design, it can be used to limit the reset of the sealing member. Since the first limiting portion protrudes into the accommodating cavity, the cross-sectional area of the accommodating cavity at the position corresponding to the first limiting portion is relatively small. Therefore, it can be used to limit the restored sealing member from passing over the first limiting portion, so that the pressure relief valve can remain open and improve the safety of the cooking container.

[0011] In a possible implementation manner, the first main body portion includes a first communication hole and a second communication hole, the accommodating cavity includes a first cavity and a second cavity, the first communication hole communicates the inside of the cooking container with the first cavity, the second communication hole communicates the outside of the cooking container with the second cavity, the first position is located in the first cavity, the second position is located in the second cavity, the first limiting portion is used to limit the sealing member from entering the first cavity, and the moving portion is used to control the communication state between the first cavity and the second cavity. When the first cavity and the second cavity are in communication, the accommodating cavity is in an open state, and when the first cavity and the second cavity are not in communication, the accommodating cavity is in a closed state.

[0012] Through such a design, the movement of the seal can be restricted, so that when the reset member drives the first body portion to move and reset along the second direction, the seal cannot return to the first cavity, and the seal is separated from the first body portion, thereby avoiding the situation where the seal follows the first body portion to reset, resulting in the closing of the air release valve.

[0013] In a possible implementation manner, the cross-sectional area of the first cavity is smaller than the cross-sectional area of the second cavity. When the seal is located in the first cavity, the seal is in a deformed state.

[0014] Since the cross-sectional area of the first cavity is smaller than that of the second cavity, when the seal is located in the first cavity, it can be in a compressed state and have a smaller volume. Thus, when the first body portion moves, the seal can move with the first body portion over the first limiting portion and enter the second cavity. When the seal moves with the first body portion to the second cavity, due to the larger cross-sectional area of the second cavity, the seal can recover its deformation. When recovering the deformation, the volume of the seal gradually increases. Therefore, the seal can be restricted by the first limiting portion, while the first body portion can move along the second direction under the action of the reset member, separating the first body portion from the seal, thereby reducing the possibility of the seal moving and resetting along the second direction with the first body portion to restrict the closing of the pressure relief valve.

[0015] In a possible implementation manner, the limiting portion is provided on the side wall of the first cavity. Along the direction close to the second cavity, the first limiting portion gradually extends towards the inside of the first cavity.

[0016] Through such a design, the first limiting portion can have a guiding structure, and the cross-sectional area of the first cavity gradually decreases. During the process of the first body portion driving the seal to move along the first direction, the seal can be in contact with the first limiting portion and be gradually compressed during the movement, so that the seal can move over the first limiting portion during the movement in the first direction.

[0017] In a possible implementation manner, the first communication hole is provided on the bottom wall of the first cavity. A gas guiding groove is provided on one side of the first body portion facing the bottom wall of the first cavity. There is a gap between the first body portion and the side wall of the first cavity, and at least one end of the gas guiding groove penetrates the first body portion along the direction close to the side wall of the first cavity. When the seal is located at the first position, the seal is located in the gap between the first body portion and the side wall of the first cavity.

[0018] Through such a design, after the first body portion is reset, the restriction of the first body portion on the flow rate of the first communication hole can be reduced, and the exhaust efficiency can be improved.

[0019] In a possible implementation, the seal is sleeved on the outside of the first body portion. The first body portion is provided with a second limiting portion that extends in a direction perpendicular to the first direction. Along the second direction, the second limiting portion is located on one side of the seal and is used to abut against the seal.

[0020] Through such a design, when the first body portion moves in the first direction, the seal can be supported by the second limiting portion, so as to drive the seal to move along the first direction with the first body portion. When the first body portion moves in the second direction, since the second limiting portion is located on one side of the seal along the stacking direction, during the movement, the second limiting portion will move away from the seal, so that the seal is separated from the first body portion.

[0021] In a possible implementation, the moving portion includes a second body portion. The second body portion is connected to the first body portion, and the reset member is sleeved on the second body portion.

[0022] Through such a design, the stability of the movement of the first body portion can be improved, which is convenient for the reset member to drive the first body portion to move, reduces the possibility of the first body portion being skewed or the like during the movement, and reduces the jamming of the first body portion during the movement. Thus, the possibility that the moving portion cannot move normally and the air release valve cannot be opened normally due to the inclination of the first body portion during the movement is reduced, which is beneficial to improving the safety of the air release valve.

[0023] In a possible implementation, the pressure relief valve includes a second main body portion. The second main body portion is connected to the first main body portion. The second main body portion is provided with a recess portion, and at least a part of the moving portion extends into the recess portion and can move along the recess portion.

[0024] Through such a design, the stability of the movement of the first body portion can be improved, which is convenient for the reset member to drive the first body portion to move, reduces the possibility of the first body portion being skewed or the like during the movement, and reduces the jamming of the first body portion during the movement. Thus, the possibility that the moving portion cannot move normally and the air release valve cannot be opened normally due to the inclination of the first body portion during the movement is reduced, which is beneficial to improving the safety of the air release valve.

[0025] The present application also provides a cooking container. The cooking container includes a container body and a container lid. The container lid is provided with a pressure relief valve, wherein the pressure relief valve is the pressure relief valve described in any one of the above.

[0026] The present application provides a pressure relief valve, which includes a first main body part and a moving part. The first main body part has a receiving cavity for communicating the inside and the outside of a cooking container. At least part of the moving part is located in the receiving cavity and is used to control the opening and closing of the receiving cavity. A first limiting part is arranged on the side wall of the receiving cavity. The moving part includes a first main body part and a sealing member. The first main body part can move relative to the first main body part along a first direction and a second direction. A reset member is used to reset the first main body part. When the first main body part moves along the first direction, the first main body part can drive the sealing member to move from a first position to a second position to open the receiving cavity. When the reset member drives the first main body part to reset, the first limiting part is used to limit the sealing member to move from the second position to the first position. Through such a design, the pressure relief valve cannot be automatically reset, which is beneficial to improving safety.

[0027] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 Schematic diagram of the first embodiment of the pressure relief valve provided by the embodiment of the present application in the first state;

[0030] Figure 2 Schematic diagram of the first embodiment of the pressure relief valve provided by the embodiment of the present application in the second state;

[0031] Figure 3 Schematic diagram of the first embodiment of the pressure relief valve provided by the embodiment of the present application in the third state;

[0032] Figure 4 Schematic diagram of the first embodiment of the pressure relief valve provided by the embodiment of the present application in the fourth state;

[0033] Figure 5 Schematic diagram of the second embodiment of the pressure relief valve provided by the embodiment of the present application in the first state;

[0034] Figure 6 Schematic diagram of the second embodiment of the pressure relief valve provided by the embodiment of the present application in the second state;

[0035] Figure 7 Schematic diagram of the first main body part and the second main body part provided by the embodiment of the present application.

[0036] Reference Signs:

[0037] 1 - First main body part;

[0038] 11 - Accommodating cavity;

[0039] 111 - First cavity;

[0040] 112 - Second cavity;

[0041] 12 - First limiting part;

[0042] 13 - First communication hole;

[0043] 14 - Second communication hole;

[0044] 2 - Moving part;

[0045] 21 - First main body part;

[0046] 211 - Air guide groove;

[0047] 212 - Second limiting part;

[0048] 22 - Sealing part;

[0049] 23 - Second main body part;

[0050] 3 - Reset part;

[0051] 4 - Gap;

[0052] 5 - Second main body part;

[0053] 51 - Concave part;

[0054] 6 - Container cover. Detailed implementation manners

[0055] For a better understanding of the technical solutions of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0056] It should be clear that the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0057] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments, and are not intended to limit this application. The singular forms of "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise.

[0058] It should be understood that the term "and / or" used herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this text generally indicates that the associated objects before and after are in an "or" relationship.

[0059] As Figure 1 shown, an embodiment of the present application provides a pressure relief valve that can be applied to a cooking container. The pressure relief valve includes a first main body portion 1 and a moving portion 2. The first main body portion 1 has a receiving cavity 11, and the receiving cavity 11 is used to communicate the inside and outside of the cooking container. At least a part of the moving portion 2 is located in the receiving cavity 11 and can move relative to the first main body portion 1 to control the opening and closing of the receiving cavity 11. By controlling the opening and closing of the receiving cavity 11, the opening and closing of the pressure relief valve can be controlled. A first limiting portion 12 is provided on the side wall of the receiving cavity 11. The moving portion 2 includes a first main body portion 21 and a sealing member 22. The first main body portion 21 can move relative to the first main body portion 1 in a first direction and a second direction, and the first direction and the second direction are opposite. In a possible implementation manner, the first direction and the second direction can be parallel to the height direction of the pressure relief valve. The pressure relief valve includes a reset member 3, and the reset member 3 is connected to the first main body portion 21 and is used to drive the first main body portion 21 to move in the second direction to reset the first main body portion 21. When the first main body portion 21 moves in the first direction, as Figure 2 shown, the first main body portion 21 can drive the sealing member 22 to move from a first position to a second position. As Figure 1 shown, when the sealing member 22 is located at the first position, the receiving cavity 11 is in a closed state, that is, the inside and outside of the cooking container cannot communicate through the receiving cavity 11, and the cooking container cannot exhaust gas through the pressure relief valve. As Figure 2 shown, when the sealing member 22 moves to the second position along with the first main body portion 21, the receiving cavity 11 is in an open state, that is, the inside and outside of the cooking container can communicate through the receiving cavity 11, and the cooking container can exhaust gas through the pressure relief valve, Figure 2 The dotted line in Figure 3 shows the flow direction of the gas. As Figure 4 shown, when the reset member 3 drives the first main body portion 21 to reset, the first limiting portion 12 is used to limit the sealing member 22 from moving from the second position to the first position, and the sealing member 22 cannot move along with the first main body portion 21. As Figure 4 shown, the first main body portion 21 can be reset under the action of the reset member 3 to disconnect the first main body portion 21 from the sealing member 22, and the sealing member 22 cannot be reset, that is, the pressure relief valve is a non-self-restoring structure. When the pressure relief valve is opened, it cannot automatically return from the open state to the closed state.

[0060] The pressure relief valve can be installed on the container lid 6 of the cooking container. During use, when the internal pressure of the cooking container is too high, the gas inside the cooking container can enter the accommodation cavity 11 and drive the first body part 21 to move in the first direction, so that the first body part 21 drives the seal 22 to move from the first position to the second position, thereby opening the pressure relief valve, enabling the cooking container to exhaust gas through the pressure relief valve and reducing the internal pressure. Due to the limitation of the first limiting part 12, the seal 22 cannot automatically reset to the first position, so that the pressure relief valve can maintain the pressure relief state after being opened, thus improving the safety of the cooking container. After use, the pressure relief valve can be manually reset to restore the seal 22 to the first position.

[0061] In a possible implementation manner, the first position can be any position before the seal crosses the first limiting part, and the second position can be any position after the seal crosses the first limiting part.

[0062] In the solution provided by the embodiments of the present application, the pressure relief valve can remain open after being opened, so that when the cooking container fails, the internal pressure of the cooking container can be reduced and the safety can be improved. Moreover, since the pressure relief valve cannot automatically reset after being opened, the user can judge whether the cooking container has a fault by observing the state of the pressure relief valve. When the pressure relief valve is in the open state, it indicates that the cooking container may have a fault, resulting in excessive internal pressure exceeding the safe pressure range, so that the user can handle it in time to avoid accidents, which is beneficial to reducing potential safety hazards. Moreover, compared with the pressure relief valve method with a side window, by providing a pressure relief valve on the cooking container, the position of the pressure relief valve can be set according to requirements, so that the exhaust direction during pressure relief can be adjusted to reduce the possibility of the cooking container tipping over during pressure relief, which is beneficial to further improving the safety of the cooking container. The reset member 3 can be an elastic member such as a spring. When the internal pressure of the cooking container is too high, the gas inside the cooking container will push the moving member to move, causing the reset member 3 to deform. When the restoring force of the reset member 3 can act on the moving part 2, it can play a buffering role, reducing the exhaust noise and impact force, and better meeting the actual use requirements.

[0063] Such as Figure 1As shown, in a possible implementation, the first limiting portion 12 can be a convex structure, protruding into the interior of the accommodating cavity 11. The sealing member 22 can be an elastic member, including but not limited to elastic members such as sealing rings and rubber rings. During the process of the first body portion 21 driving the sealing member 22 from the first position to the second position, the sealing member 22 can deform, for example, be compressed and deformed to reduce its volume, so that the sealing member 22 can cross the first limiting portion 12 and reach the second position after crossing the first limiting portion 12. When the sealing member 22 reaches the second position, the sealing member 22 can restore its deformation, making it impossible for the sealing member 22 to cross the first limiting portion 12. The sealing member 22 can be in contact with the first limiting portion 12 along the second direction, that is, the sealing member 22 cannot return to the first position, thereby keeping the accommodating cavity 11 in an open state.

[0064] Through such a design, it can be used to limit the reset of the sealing member 22. Since the first limiting portion 12 protrudes into the interior of the accommodating cavity 11, the cross-sectional area of the accommodating cavity 11 at the position corresponding to the first limiting portion 12 is relatively small. Therefore, it can be used to limit the sealing member 22 after restoring its deformation from crossing the first limiting portion 12, so as to keep the pressure relief valve in an open state and improve the safety of the cooking container.

[0065] As Figure 1 As shown, in a possible implementation, the accommodating cavity 11 includes a first cavity 111 and a second cavity 112. The first main body portion 1 is provided with a first communication hole 13 and a second communication hole 14. The first communication hole 13 penetrates the wall surface of the first cavity 111 for communicating the interior of the cooking container and the first cavity 111. The second communication hole 14 penetrates the wall surface of the second cavity 112 for communicating the second cavity 112 and the outside of the cooking container. The moving portion 2 is used to limit the communication state between the first cavity 111 and the second cavity 112. The first position is located in the first cavity 111, and the second position is located in the second cavity 112. When the first cavity 111 communicates with the second cavity 112, the gas inside the cooking container can enter the first cavity 111 through the first communication hole 13, enter the second cavity 112 along the first cavity 111, and then be discharged along the second communication hole 14. When the first cavity 111 does not communicate with the second cavity 112, the gas cannot enter the second cavity 112 along the first cavity 111 and thus cannot be discharged along the second communication hole 14. The second cavity 112 can be located on one side of the first cavity 111 along the first direction.

[0066] Through such a design, the movement of the sealing member 22 can be restricted, so that when the reset member 3 drives the first body portion 21 to move and reset along the second direction, the sealing member 22 cannot return to the first cavity 111, and the sealing member 22 can be detached from the first body portion 21, thereby avoiding the situation where the sealing member 22 resets with the first body portion 21, resulting in the closing of the air release valve.

[0067] AsFigure 5 As shown, in a possible implementation, the cross-sectional area of the first cavity 111 is smaller than that of the second cavity 112. The part where the side wall of the first cavity 111 protrudes into the accommodating cavity 11 relative to the side wall of the second cavity 112 can serve as the first limiting portion 12. When the seal 22 is located in the first cavity 111, the seal 22 is in a deformed state. As Figure 6 shown, when the seal 22 moves to the second cavity 112, the seal 22 can recover its deformation and abut against the first limiting portion 12 to limit the seal 22 from entering the first cavity 111.

[0068] Since the cross-sectional area of the first cavity 111 is smaller than that of the second cavity 112, when the seal 22 is located in the first cavity 111, it can be in a compressed state with a smaller volume. Thus, when the first body portion 21 moves, the seal 22 can move with the first body portion 21 over the first limiting portion 12 and enter the second cavity 112. When the seal 22 moves with the first body portion 21 to the second cavity 112, due to the larger cross-sectional area of the second cavity 112, the seal 22 can recover its deformation. During the recovery of deformation, the volume of the seal 22 gradually increases. Therefore, the seal 22 can be restricted by the first limiting portion 12, and the first body portion 21 can move in the second direction under the action of the reset member 3, separating the first body portion 21 from the seal 22, thereby reducing the possibility of the seal 22 moving and resetting with the first body portion 21 in the second direction to limit the closing of the pressure relief valve.

[0069] As Figure 1 shown, in a possible implementation, the first limiting portion 12 is provided in the first cavity 111. Along the direction approaching the second cavity 112, the first limiting portion 12 gradually extends towards the inside of the first cavity 111.

[0070] Through such a design, the first limiting portion 12 can have a guiding structure, causing the cross-sectional area of the first cavity 111 to gradually decrease. During the process of the first body portion 21 driving the seal 22 to move in the first direction, the seal 22 can abut against the first limiting portion 12 and be gradually compressed during the movement, so that the seal 22 can move over the first limiting portion 12 during the movement in the first direction.

[0071] The first limiting portion 12 can be directly formed on the inner wall of the first cavity 111. The first cavity 111 can be a conical cavity, a cylindrical cavity or other structures. The cross-sectional area of the first end of the second cavity 112 close to the first cavity 111 is larger than that of the first end of the first cavity 111 close to the second cavity 112, so as to form a stepped surface at the adjacent position of the first cavity 111 and the second cavity 112. When the seal 22 enters the second cavity 112 and resumes deformation, it can abut against the stepped surface in the second direction. The stepped surface can serve as the first limiting portion 12 to limit the seal 22 from entering the first cavity 111. The first limiting portion 12 can be arranged along the circumferential direction of the accommodating cavity 11 inside the accommodating cavity 11 to form an annular protrusion, so as to form a stepped surface inside the accommodating cavity 11 to limit the reset of the seal 22.

[0072] As Figure 4 shown, in a possible implementation manner, the first communication hole 13 is arranged on the bottom wall of the first cavity 111. One side of the first body portion 21 facing the bottom wall of the first cavity 111 is provided with an air guiding groove 211. The air guiding groove 211 is recessed towards the side away from the bottom wall of the first cavity 111. At least one end of the air guiding groove 211 penetrates the first body portion 21 along the direction close to the side wall of the first cavity 111, that is, as Figure 7 shown, the air guiding groove 211 can penetrate the first body portion 21 along the radial direction of the first body portion 21. There is a gap 4 between the first body portion 21 and the side wall of the first cavity 111. When the seal 22 is in the first position, the seal 22 is located in the gap 4 between the first body portion 21 and the side wall of the first cavity 111, and is used to fill the gap 4 to limit the gas from flowing into the second cavity 112 along the first cavity 111. When the seal 22 moves to the second position, since the seal 22 cannot be reset, therefore, after the gas enters the air guiding groove 211, it can flow along the air guiding groove 211 to the gap 4 between the first body portion 21 and the side wall of the first cavity 111, and flow to the second cavity 112 through the gap 4.

[0073] Through such a design, after the first body portion 21 is reset, the restriction of the first body portion 21 on the flow rate of the first communication hole 13 can be reduced, and the exhaust efficiency can be improved.

[0074] As Figure 1 shown, the seal 22 is sleeved on the outer side of the first body portion 21. The first body portion 21 is provided with a second limiting portion 212. The second limiting portion 212 extends along the direction perpendicular to the first direction, that is, the second limiting portion 212 can extend along the radial direction of the first body portion 21. The second limiting portion 212 is located on one side of the seal 22 along the second return position, and is used to abut against the seal 22.

[0075] Through such a design, when the first body portion 21 moves in the first direction, the seal 22 can be supported by the second limiting portion 212, so as to drive the seal 22 to move along the first direction with the first body portion 21. When the first body portion 21 moves in the second direction, since the second limiting portion 212 is located on one side of the seal 22 along the stacking direction, during movement, the second limiting portion 212 will move away from the seal 22, so that the seal 22 is separated from the first body portion 21.

[0076] As Figure 1 shown, in a possible implementation manner, the moving portion 2 includes a second body portion 23, the second body portion 23 is connected to the first body portion 21, and the reset member 3 is sleeved on the second body portion 23.

[0077] Through such a design, the stability of the movement of the first body portion 21 can be improved, which is convenient for the reset member 3 to drive the first body portion 21 to move, reduces the possibility of the first body portion 21 being skewed during movement, and reduces the jamming of the first body portion 21 during movement. Thus, the possibility that the moving portion 2 cannot move normally and the air release valve cannot be opened normally due to the inclination of the first body portion 21 during movement is reduced, which is beneficial to improving the safety of the air release valve.

[0078] As Figure 1 shown, in a possible implementation manner, the pressure relief valve includes a second main body portion 5, the second main body portion 5 is connected to the first main body portion 1, and the second main body portion 5 can be located on the side of the first main body portion 1 away from the cooking container for blocking the accommodating cavity 11. The second main body portion 5 is provided with a recessed portion 51, and at least a part of the moving portion 2 can extend into the recessed portion 51 and move along the recessed portion 51. The recessed portion 51 can be structures such as a guide hole or a guide groove.

[0079] Through such a design, the movement of the moving portion 2 can be guided, so as to improve the stability of the movement of the moving portion 2, facilitate the control of the state of the pressure relief valve, and improve safety.

[0080] Based on the pressure relief valves involved in the above embodiments, the embodiments of the present application further provide a cooking container, which includes a container body and a container lid 6. The container lid 6 is provided with a pressure relief valve, and the pressure relief valve can be the pressure relief valve involved in any of the above embodiments. Since the pressure relief valves all have the above technical effects, the cooking container including the pressure relief valve also has corresponding technical effects, which will not be elaborated here.

[0081] During use, when the pressure of the cooking container does not exceed the preset pressure, the state of the air release valve is as Figure 1As shown, at this time, the first body portion 21 and the seal 22 are located in the first cavity 111. When the pressure in the cooking container gradually increases, the gas inside the cooking container can enter the first cavity 111 along the first communication hole 13 and push the moving portion 2 to move in the direction close to the second cavity 112. The first cavity 111 can be a conical cavity. The seal 22 abuts against the side wall of the first cavity 111. As the moving portion 2 moves, the seal 22 is gradually compressed. As Figure 2 shown, when the pressure in the cooking container exceeds the preset pressure, the gas can drive the first body portion 21 and the seal 22 to cross the first limiting portion 12 and enter the second cavity 112. As Figure 3 and Figure 4 shown, as the gas is discharged from the inside of the cooking container, the acting force of the gas on the first body portion 21 gradually decreases. The first body portion 21 can move in the second direction under the action of the reset member 3 and return to the first cavity 111. The seal 22 is restricted by the first limiting portion 12 and cannot move from the second cavity 112 to the first cavity 111. Therefore, the seal 22 is separated from the first body portion 21. Since the first body portion 21 is provided with a gas guiding groove 211 and there is a gap 4 between the first body portion 21 and the side wall of the first cavity 111, after the first body portion 21 is reset, the gas can still flow along the gas guiding groove 211 to the gap 4 between the first body portion 21 and the side wall of the first cavity 111 and flow along the gap 4 to the second cavity 112, so as to exhaust gas. The pressure relief valve provided by the embodiment of the present application cannot be automatically reset after being opened, which is beneficial to improving the safety of the cooking container and reducing potential safety hazards.

[0082] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A pressure relief valve, applied to a cooking container, characterized in that, The pressure relief valve includes: A first main body portion (1), the first main body portion (1) including a receiving cavity (11); A moving portion (2), at least a part of the moving portion (2) being located in the receiving cavity (11), and the moving portion (2) being capable of moving relative to the first main body portion (1) for controlling the opening and closing of the receiving cavity (11); Wherein, a first limiting portion (12) is provided on the side wall of the receiving cavity (11), the moving portion (2) includes a first main body portion (21) and a sealing member (22), the first main body portion (21) being capable of moving along a first direction and a second direction opposite to the first direction, when the first main body portion (21) moves along the first direction, it can drive the sealing member (22) to move from a first position to a second position, the pressure relief valve includes a reset member (3), the reset member (3) being connected to the first main body portion (21) for driving the first main body portion (21) to move along the second direction and reset, so that the first main body portion (21) is disconnected from the sealing member (22), when the sealing member (22) is located at the first position, the receiving cavity (11) is in a closed state, when the sealing member (22) is in the second position, the receiving cavity (11) is in an open state, and the first limiting portion (12) is used to limit the sealing member (22) from moving from the second position to the first position.

2. The pressure relief valve according to claim 1, characterized in that, The first limiting portion (12) protrudes into the interior of the receiving cavity (11), the sealing member (22) is an elastic member, when the sealing member (22) moves from the first position to the second position, the sealing member (22) deforms, when the sealing member (22) reaches the second position, the sealing member (22) restores its deformation, and the sealing member (22) abuts against the first limiting portion (12) along the second direction.

3. The pressure relief valve according to claim 2, wherein The first main body portion (1) includes a first communication hole (13) and a second communication hole (14), the receiving cavity (11) includes a first cavity (111) and a second cavity (112), the first communication hole (13) communicates the interior of the cooking container with the first cavity (111), the second communication hole (14) communicates the outside of the cooking container with the second cavity (112), the first position is located in the first cavity (111), the second position is located in the second cavity (112), the first limiting portion (12) is used to limit the sealing member (22) from entering the first cavity (111), the moving portion (2) is used to control the communication state between the first cavity (111) and the second cavity (112), when the first cavity (111) is in communication with the second cavity (112), the receiving cavity (11) is in an open state, when the first cavity (111) is not in communication with the second cavity (112), the receiving cavity (11) is in a closed state.

4. The pressure relief valve according to claim 3, wherein The cross-sectional area of the first cavity (111) is smaller than that of the second cavity (112). When the seal (22) is located in the first cavity (111), the seal (22) is in a deformed state.

5. The pressure relief valve according to claim 3, characterized in that, The limiting portion is provided on the side wall of the first cavity (111). Along the direction approaching the second cavity (112), the first limiting portion (12) gradually extends towards the inside of the first cavity (111).

6. The pressure relief valve according to claim 3, characterized in that, The first communication hole (13) is provided in the bottom wall of the first cavity (111). A gas guiding groove (211) is provided on one side of the first body portion (21) facing the bottom wall of the first cavity (111). There is a gap (4) between the first body portion (21) and the side wall of the first cavity (111). And at least one end of the gas guiding groove (211) penetrates through the first body portion (21) along the direction approaching the side wall of the first cavity (111). When the seal (22) is located at the first position, the seal (22) is located in the gap (4) between the first body portion (21) and the side wall of the first cavity (111).

7. The pressure relief valve according to any one of claims 1 to 6, characterized in that, The seal (22) is sleeved on the outer side of the first body portion (21). The first body portion (21) is provided with a second limiting portion (212). The second limiting portion (212) extends in a direction perpendicular to the first direction. Along the second direction, the second limiting portion (212) is located on one side of the seal (22) and is used for abutting against the seal (22).

8. The pressure relief valve according to any one of claims 1 to 6, characterized in that, The moving portion (2) includes a second body portion (23). The second body portion (23) is connected to the first body portion (21). The reset member (3) is sleeved on the second body portion (23).

9. The pressure relief valve according to any one of claims 1 to 6, characterized in that, The pressure relief valve includes a second main body portion (5). The second main body portion (5) is connected to the first main body portion (1). The second main body portion (5) is provided with a recessed portion (51). At least a part of the moving portion (2) extends into the recessed portion (51) and can move along the recessed portion (51).

10. A cooking container, characterized in that, The cooking container includes a container body and a container lid (6). The container lid (6) is provided with a pressure relief valve. Among them, the pressure relief valve is the pressure relief valve according to any one of claims 1 to 9.

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