Opening stopping valve and container cover

Abstract

The utility model discloses an opening stopping valve and a container cover, the opening stopping valve comprises a valve body, a first sealing piece and a valve bonnet, the first sealing piece is connected to the outer wall of the valve body in a sleeving mode, and the valve bonnet is connected with the valve body. In the height direction of the container cover, the valve bonnet abuts against the first sealing piece and is used for supporting the first sealing piece, so that the valve bonnet can limit downward movement of the first sealing piece relative to the valve body in the height direction of the container cover, the possibility that the first sealing piece and the valve body are separated from each other is reduced, and the stability and reliability of connection between the first sealing piece and the valve body are improved. In the cooking process, the cover body and the valve bonnet can clamp the first sealing piece in the height direction of the container cover, so that the container cover in the sealed state has good sealing performance, the experience feeling of a user in the cooking process is improved, and therefore the container cover can have good sealing performance in the use process, and the use experience of the user is improved. And the reliability of the opening stop valve in the working process is improved, so that the product quality is improved.

Description

Technical Field

[0001] This application relates to the technical field of cooking appliances, in particular to a check valve and a container lid. Background Art

[0002] A cooking container includes a container lid and a container body. The container lid is provided with a check valve that can float in the installation hole of the container lid along the height direction of the cooking container. Among them, a sealing ring is sleeved at one end of the check valve located inside the container body. During the heating-up process of the cooking container, the steam inside the container body can push the check valve upward to limit the handle assembly of the cooking container while sealing the installation hole, so that the cooking container is always in a sealed state and the cooking efficiency of food is improved. Currently, there is a technical problem that the sealing ring of the check valve is prone to falling off during operation, resulting in the inability of the check valve to effectively seal the installation hole during the heating-up process of the cooking container, thus affecting the cooking efficiency of food. Utility Model Content

[0003] In view of this, this application provides a check valve and a container lid to solve the technical problem that the sealing ring of the check valve in the prior art is prone to falling off.

[0004] This application provides a check valve for a container lid. The check valve includes a valve body, a first sealing member, and a valve cap. The first sealing member is sleeved on the outer wall of the valve body, and the valve cap is connected to the valve body. Among them, the valve cap abuts against the first sealing member along the height direction of the container lid to support the first sealing member.

[0005] In the embodiment of this application, the valve cap is used to support the first sealing member, so that the valve cap can limit the downward movement of the first sealing member along the height direction of the container lid, reduce the possibility of the first sealing member and the valve body separating from each other, improve the stability and reliability of the connection between the two, enable the container lid to not only have good sealing performance during use, but also be beneficial to extending the service life of the check valve, thereby realizing the improvement of product quality.

[0006] In a possible implementation manner, an installation groove is further provided on the outer wall of the valve body. The first sealing member is sleeved on the outer wall of the valve body through the installation groove, and the first sealing member abuts against the side wall of at least one side of the installation groove along the height direction of the container lid.

[0007] In an embodiment of the present application, an installation groove is further provided on the outer wall of the valve body. Along the height direction of the container lid, when the first sealing member is sleeved in the installation groove, the first sealing member can abut against the side wall on at least one side of the installation groove, so that the side wall of the installation groove can support and limit the first sealing member, in order to improve the installation reliability of the first sealing member while further restricting the movement of the first sealing member relative to the valve body along the height direction of the container lid, thereby further reducing the possibility of the first sealing member falling off the valve body.

[0008] In a possible implementation manner, the first sealing member includes a body portion, a first extension portion and a second extension portion connected to the body portion. Along the height direction of the container lid, the first extension portion and the second extension portion are located on both sides of the body portion and are inclined relative to the body portion. The inclination directions of the first extension portion and the second extension portion are opposite, and the body portion is sleeved on the outer wall of the valve body through the installation groove.

[0009] In an embodiment of the present application, along the height direction of the container lid, both the upper surface and the lower surface of the body portion are flat surfaces. When the first sealing member is connected to the installation groove through the body portion, the body portion can be in surface contact with the side wall of the installation groove, so that there is a large contact area between the two, which is beneficial to improving the support effect of the side wall of the installation groove on the first sealing member and improving the installation reliability of the first sealing member. Among them, both the first extension portion and the second extension portion are inclined relative to the body portion, and along the height direction of the pressure container lid, the inclination directions of the first extension portion and the second extension portion are opposite, so that the two can be symmetrically arranged relative to the body portion. Thus, during the assembly process of the first sealing member and the valve body, there is no need to distinguish the placement position of the first sealing member, which is beneficial to improving the assembly efficiency between the two and improving the production efficiency of the non-opening valve.

[0010] In a possible implementation manner, the body portion is a hollow cylindrical structure, and the first extension portion and the second extension portion are arranged along the circumference of the body portion; a part of the body portion extends radially out of the installation groove, and the valve cap abuts against the body portion.

[0011] In an embodiment of the present application, the hollow cylindrical structure can make the body portion of the first sealing member better fit the outer wall of the valve body to improve the stability and reliability of the connection between the two. Moreover, the two mutually cooperating cylindrical structures are not only easy to process, but also can reduce the assembly difficulty and improve the assembly efficiency between the two.

[0012] When the container lid is in a sealed state, the body portion can also abut against the inner wall of the lid body through the first extension portion, and the circumferentially arranged first extension portion can form a sealed cavity between the body portion and the inner wall of the lid body, which is beneficial to further improving the sealing effect of the first sealing member on the installation hole.

[0013] When the main body part is sleeved on the outer wall of the valve body through the installation groove, a part of the main body part can extend out of the installation groove radially. Along the height direction of the container cover, the valve cap can abut against this part of the main body part extending out of the installation groove, so that the main body part of the first seal can abut against the side wall of the installation groove and the valve cap at the same time, which is beneficial to further increase the supporting area for the main body part, thereby improving the installation reliability of the first seal.

[0014] In a possible implementation manner, an included angle θ1 exists between the first extension part and the main body part, and θ1 satisfies 130° ≤ θ1 ≤ 150°, and / or, an included angle θ2 exists between the second extension part and the main body part, and θ2 satisfies 130° ≤ θ2 ≤ 150°.

[0015] In the embodiment of the present application, when the included angle between the first extension part and the main body part satisfies 130° ≤ θ1 ≤ 150°, the included angle between the two is an obtuse angle. And when the first extension part abuts against the inner wall of the cover body, under the action of an external force, the first extension part can elastically deform relative to the main body part towards the direction close to the main body part, so that the first seal can abut against the inner wall of the cover body through the first extension part and the main body part, thereby changing the contact relationship between the two from line contact to surface contact, so as to increase the contact area between the first seal and the inner wall of the cover body, which is beneficial to improving the sealing effect on the installation hole and the sealing performance of the container cover.

[0016] When the included angle between the second extension part and the main body part satisfies 130° ≤ θ2 ≤ 150°, the included angle between the two is an obtuse angle. Along the height direction of the container cover, the valve cap can not only abut against the part of the main body part extending out of the installation groove, but also abut against at least part of the second extension part, so that the valve cap and the side wall of the installation groove can jointly support the first seal, so as to further increase the supporting area for the first seal and improve the installation reliability of the first seal.

[0017] In a possible implementation manner, the thickness of the main body part is H, and H satisfies 3mm ≤ H ≤ 5mm, and / or, the radial dimension of the main body part is D, and D satisfies 10mm ≤ D ≤ 20mm.

[0018] In the embodiment of the present application, when the thickness of the main body part satisfies 3mm ≤ H ≤ 5mm, the contact area between the main body part and the valve body is moderate, so that a suitable contact area can be provided between the two, so as to improve the stability and reliability of the connection between the first seal and the valve body, and can also prevent the volume of the first seal from being too large, so as to reduce the production cost of the first seal while ensuring that the first extension part can elastically deform to improve the sealing effect on the installation hole.

[0019] When the radial dimension of the main body satisfies 10mm≤D≤20mm, the contact area between the main body and the inner wall of the cover body is moderate, so that there can be a suitable contact area between the two, so as to improve the sealing effect of the first seal on the mounting hole, and also avoid the volume of the first seal being too large, so as to reduce the production cost of the first seal.

[0020] In a possible embodiment, the valve cap includes a support portion and a first step portion, the first step portion is located on the side of the support portion away from the first sealing member, the support portion is sleeved on the end portion of the valve body along the height direction of the container cover and is detachably connected, and the end portion of the valve body along the height direction of the container cover abuts against the first step portion, and the support portion abuts against the first sealing member.

[0021] In the embodiment of the present application, by providing a detachable connection between the valve body and the valve cap, it is convenient for the user to clean or replace the first sealing member in time, so as to reduce the possibility of sealing failure of the check valve during the cooking process, thereby improving the reliability of the container cover during the cooking process. Specifically, along the height direction of the container cover, the end of the valve body facing one end of the container body is provided with an external thread, and the valve cap is provided with an internal thread, and the valve body and the valve cap are threadedly connected by the external thread and the internal thread.

[0022] During the process of the valve cap and the valve body being connected, the valve body is threadedly connected to the internal thread of the valve cap through the external thread. After the connection between the two is completed, the first step portion of the valve cap can abut against the end of the valve body facing the container body, so that the first step portion and the end of the valve body are in surface contact, which is conducive to increasing the friction between the two, so that the connection relationship between the internal thread and the external thread is not easy to be released, improving the stability and reliability of the connection between the valve cap and the valve body, and further improving the structural stability of the check valve during the cooking process.

[0023] In a possible implementation, the valve body has a valve cavity, and the check valve further includes a valve core assembly, and the valve core assembly can move relative to the valve body along a height direction of the container cover.

[0024] The bottom wall of the valve bonnet has an opening, and a part of the valve core assembly can extend out of the valve bonnet through the opening. The valve bonnet also has a second step portion. Along the height direction of the container cover, the second step portion is located on the side of the first step portion away from the support portion, and the second step portion is used for sealing with the valve core assembly.

[0025] In the embodiments of the present application, during the cooking process of the cooking container, the valve core assembly can move along the height direction of the container lid to block the opening of the valve cap, so that the container lid is in a sealed state, improving the cooking efficiency of food. Specifically, the valve core assembly includes a valve core that can move along the height direction of the container lid in the valve cavity. The valve cap also has a second step portion, which is located on the side of the first step portion away from the support portion along the height direction of the cooking container. When the valve core abuts against the second step portion, the valve core can block the opening of the valve cap, so that the container lid is in a sealed state. At this time, the steam inside the container body cannot be discharged to the external environment through the container lid, so that the pressure inside the container body gradually increases, so as to quickly cook the food by increasing the pressure inside the container body, which is beneficial to improving the cooking efficiency.

[0026] The present application also provides a container lid, which includes a lid body and a check valve. The lid body has a mounting hole, and the check valve is the check valve described in any one of the above. Among them, the check valve is installed in the mounting hole.

[0027] In the embodiments of the present application, the check valve is installed in the mounting hole of the lid body and can move along the height direction of the container lid in the mounting hole, and at least part of the valve body can extend into the container body through the mounting hole. Among them, a first sealing member is sleeved on the outer wall of at least part of the valve body located inside the container body.

[0028] During the cooking process of the cooking container, the pressure inside the container body will gradually increase, so that the steam inside the container body can drive the check valve to move upward along the height direction of the container lid and drive the first sealing member to move synchronously. When the check valve moves under the drive of the steam until the first sealing member abuts against the inner wall of the lid body, the first sealing member can block the mounting hole of the lid body, so that the container lid is in a sealed state, so that the cooking container is in a sealed state, and further, there is a large pressure inside the container body 4, which is beneficial to shortening the cooking time and improving the cooking efficiency.

[0029] Among them, when the container lid is in a sealed state, the food inside the container body is in a boiling state. At this time, the lid body and the valve cap clamp the first sealing member along the height direction of the container lid, which can avoid the possibility that the first sealing member falls off or is displaced from the valve body due to the collision with food splashing, improving the reliability of the container lid during the cooking process, which is beneficial to further improving the sealing performance of the container lid and improving the overall cooking effect of the cooking container.

[0030] In a possible implementation manner, the first sealing member includes a main body portion and a first extension portion connected to the main body portion. Along the height direction of the container lid, during the movement of the check valve relative to the lid body, the first extension portion can be fitted and sealed with the inner wall of the lid body.

[0031] In the embodiment of the present application, when the steam inside the container body drives the anti-opening valve to move upward along the height direction of the container lid, it can drive the first seal to move synchronously. During the movement of the anti-opening valve relative to the lid body, the first seal can abut against the inner wall of the lid body through the first extension part to block the installation hole. At this time, the container lid is in a sealed state. Among them, since the first extension part is inclined relative to the body part, when the first extension part abuts against the inner wall of the lid body, the first extension part can also undergo elastic deformation under a greater pressure, so that the first extension part and the body part fit against the inner wall of the lid body, thereby changing the line contact between the first seal and the inner wall of the lid body to surface contact. Furthermore, by increasing the contact area between the first seal and the inner wall of the lid body, the sealing effect of the first seal on the installation hole can be improved, which is beneficial to further improving the sealing performance of the container lid.

[0032] In a possible implementation manner, the container lid is further connected with a handle assembly. The handle assembly includes a handle body and a push plate. The handle body has a through hole, and at least part of the valve body is located in the through hole. Along the height direction of the container lid, during the movement of the anti-opening valve relative to the lid body, the valve body can be clamped with the push plate.

[0033] In the embodiment of the present application, at least part of the valve body is located in the through hole of the handle body. During the cooking process of the cooking container, the valve body can move relative to the through hole along the height direction of the container lid so that the valve body can be clamped with the push plate. When the pressure inside the container body increases, it can drive the valve body to move upward along the height direction of the container lid, so that at least part of the valve body extends out of the through hole and the valve body is clamped with the push plate. At this time, the push plate is restricted by the valve body and cannot move radially along the container lid, so that the user cannot open the cooking container by driving the handle assembly when the anti-opening valve is in the rising state, which is beneficial to improving the safety of the user during the cooking process.

[0034] It should be understood that the above general description and the following detailed description are only exemplary and cannot limit the present application. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used 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.

[0036] Figure 1 It is a cross-sectional view of the container lid provided by the present application in a specific embodiment;

[0037] Figure 2Cross-sectional view of the container lid provided by this application in a sealed state;

[0038] Figure 3 Cross-sectional view of the container lid provided by this application in an exhaust state;

[0039] Figure 4 Schematic structural diagram of the anti-opening valve provided by this application in a specific embodiment;

[0040] Figure 5 Schematic structural diagram of the valve stem provided by this application;

[0041] Figure 6 is Figure 5 Cross-sectional view;

[0042] Figure 7 Schematic structural diagram of the first seal provided by this application;

[0043] Figure 8 is Figure 7 Cross-sectional view;

[0044] Figure 9 Schematic structural diagram of the valve cap provided by this application;

[0045] Figure 10 is Figure 9 Cross-sectional view;

[0046] Figure 11 Cross-sectional view of the cooking container provided by this application in a specific embodiment.

[0047] Explanation of reference numerals:

[0048] 1 - Lid body;

[0049] 11 - Mounting hole;

[0050] 2 - Anti-opening valve;

[0051] 21 - Valve body;

[0052] 211b - Mounting groove;

[0053] 211c - External thread;

[0054] 214 - Valve cavity;

[0055] 214a - Protrusion;

[0056] 22 - First seal;

[0057] 221 - First extension;

[0058] 222 - Second extension;

[0059] 223 - Body part;

[0060] 23 - valve core;

[0061] 24 - elastic member;

[0062] 25 - second seal;

[0063] 26 - valve cap;

[0064] 261 - first step portion;

[0065] 262 - second step portion;

[0066] 263 - support portion;

[0067] 263a - internal thread;

[0068] 264 - operating surface;

[0069] 4 - container body;

[0070] 5 - handle assembly;

[0071] 51 - handle body;

[0072] 511 - through hole;

[0073] 52 - push plate.

[0074] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments in accordance with the present application and, together with the specification, are used to explain the principles of the present application. Detailed Description of the Embodiments

[0075] For a better understanding of the technical solutions of the present application, the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0076] It should be clear that the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0077] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms of "a", "the", and "said" used in the embodiments of the present application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0078] It should be understood that the term "and / or" used herein is merely a description of the association relationship of associated objects, indicating that three relationships can exist. 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.

[0079] An embodiment of the present application provides a non-opening valve 2 for a container lid, such as Figure 1 and Figure 4 As shown, the non-opening valve 2 includes a valve body 21, a valve cap 26, and a first seal 22. The first seal 22 is sleeved on the outer wall of the valve body 21. Along the height direction of the container lid, the valve cap 26 is connected to the valve body 21 and abuts against the first seal 22 to support the first seal 22.

[0080] In the embodiment of the present application, along the height direction of the container lid, the first seal 22 is sleeved on the outer wall of the valve body 21. The valve cap 26 is connected to the valve body 21 and abuts against the first seal 22 to support the first seal 22, so that the valve cap 26 can limit the downward movement of the first seal 22 along the height direction of the container lid, reduce the possibility of the first seal 22 separating from the valve body 21, and improve the stability and reliability of the connection between the two.

[0081] When the non-opening valve 2 is installed on the container lid, the first seal 22 sleeved on the outer wall of the valve body 21 is used to seal the installation hole 11 on the container lid where the non-opening valve 2 is installed, so that the container lid can be in a sealed state during use.

[0082] Among them, the valve cap 26 of the non-opening valve 2 can support the first seal 22. When the container lid is in a sealed state, as Figure 2 shown, the lid body 1 of the container lid and the valve cap 26 can clamp the first seal 22 along the height direction of the container lid, so that the container lid in the sealed state has good sealing performance, which is beneficial to improving the user experience during cooking. And when the first seal 22 ages, the first seal 22 can still be sleeved on the outer wall of the valve body 21 under the support of the valve cap 26, and drive the first seal 22 to move along the height direction of the container lid during the use of the container lid, so that the container lid is in a sealed state, thereby realizing the blocking of the installation hole 11, and further being able to extend the service life of the non-opening valve 2. Additionally, the method of improving the installation reliability of the first seal 22 by setting the valve cap 26 to abut against the first seal 22 is easy to implement, which is beneficial to reducing the production cost of the non-opening valve 2

[0083] Therefore, the anti-opening valve 2 in this embodiment can improve the connection stability and reliability between the first seal 22 and the valve body 21 through the valve cap 26, so that the container lid not only has good sealing performance during use, but also helps to extend the service life of the anti-opening valve 2, thereby achieving the improvement of product quality.

[0084] An embodiment of the present application also provides a container lid for a cooking container, such as Figure 1 and Figure 2 As shown, the cooking container includes a container lid and a container body 4 (not shown in the figure). The container lid includes a lid body 1 and the above-mentioned anti-opening valve 2. Among them, the lid body 1 has a mounting hole 11, and the anti-opening valve 2 is mounted on the lid body 1 of the container lid through the mounting hole 11.

[0085] In the embodiment of the present application, the anti-opening valve 2 is mounted in the mounting hole 11 of the lid body 1 and can move along the height direction of the container lid in the mounting hole 11, and at least part of the valve body 21 can extend into the container body 4 through the mounting hole 11. Among them, a first seal 22 is sleeved on the outer wall of at least part of the valve body 21 located inside the container body 4.

[0086] During the cooking process of the cooking container, the pressure inside the container body 4 will gradually increase, so that the steam inside the container body 4 can drive the anti-opening valve 2 to move upward along the height direction of the container lid and drive the first seal 22 to move synchronously. When the anti-opening valve 2 moves under the drive of the steam until the first seal 22 abuts against the inner wall of the lid body 1, the first seal 22 can block the mounting hole 11 of the lid body 1, so that the container lid is in a sealed state, so that the cooking container is in a sealed state, and further, the inside of the container body 4 has a relatively large pressure, which is beneficial to shortening the cooking time and improving the cooking efficiency.

[0087] Among them, when the container lid is in a sealed state, the food inside the container body 4 is in a boiling state. At this time, the lid body 1 and the valve cap 26 clamp the first seal 22 along the height direction of the container lid, which can avoid the possibility that the first seal 22 falls off or is displaced from the valve body 21 due to the collision with the food splashing, improve the reliability of the container lid during the cooking process, and thus help to further improve the sealing performance of the container lid and improve the overall cooking effect of the cooking container.

[0088] In a specific embodiment, such as Figure 11 As shown, the container lid is also connected with a handle assembly 5. The handle assembly 5 includes a handle body 51 and a push plate 52. The handle body 51 has a through hole 511, and at least part of the valve body 21 is located in the through hole 511. Along the height direction of the container lid, during the movement of the anti-opening valve 2 relative to the lid body 1, the valve body 21 can be clamped with the push plate 52.

[0089] In an embodiment of the present application, at least a part of the valve body 21 is located in the through hole 511 of the handle body 51. During the cooking process of the cooking container, the valve body 21 can move relative to the through hole 511 in the height direction of the container lid, so that the valve body 21 can be engaged or disengaged with the push plate 52.

[0090] When the cooking container is in the initial heating stage or the cooling period after heating is completed, the pressure inside the container body 4 is relatively low. At this time, the anti-opening valve 2 moves downward in the height direction of the container lid under the action of gravity. At least a part of the valve body 21 is located in the through hole 511 and is not engaged with the push plate 52, and the first seal 22 is separated from the inner wall of the lid body 1. At this time, the cooking container is in the unlocked state, and the push plate 52 can move radially along the container lid under an external force, so that the user can drive the handle assembly 5 to disengage the container lid from the container body 4, and thus the container lid can be removed.

[0091] When the cooking container is continuously heated until the steam inside the container body 4 increases and the pressure increases, the pressure inside the container body 4 is relatively high. At this time, the anti-opening valve 2 moves upward in the height direction of the container lid under the drive of the steam. At least a part of the valve body 21 extends out of the through hole 511 and is engaged with the push plate 52, and the first seal 22 is tightly attached to the inner wall of the lid body 1 in a sealed manner. At this time, the cooking container is in the locked state, and the valve body 21 can limit the movement of the push plate 52 in the radial direction of the container lid, so that the user cannot drive the handle assembly 5 to disengage the cooperation between the container lid and the container body 4, and thus the container lid cannot be removed.

[0092] Therefore, when the pressure inside the container body 4 increases, it can drive the valve body 21 to move upward in the height direction of the container lid, so that at least a part of the valve body 21 extends out of the through hole 511 and engages the valve body 21 with the push plate 52. At this time, the push plate 52 cannot move radially along the container lid under the restriction of the valve body 21, so that the user cannot open the cooking container by driving the handle assembly 5 when the anti-opening valve 2 is in the rising state, which is beneficial to improving the safety of the user during the cooking process.

[0093] In a specific embodiment, as Figure 5 and Figure 6 shown, an installation groove 211b is further provided on the outer wall of the valve body 21. The first seal 22 is sleeved on the outer wall of the valve body 21 through the installation groove 211b, and the first seal 22 abuts against the side wall of at least one side of the installation groove 211b in the height direction of the container lid.

[0094] In the embodiment of the present application, an installation groove 211b is further provided on the outer wall of the valve body 21. Along the height direction of the container cover, when the first seal 22 is sleeved in the installation groove 211b, the first seal 22 can abut against the side wall on at least one side of the installation groove 211b, so that the side wall of the installation groove 211b can support and position the first seal 22, so as to improve the installation reliability of the first seal 22 while further restricting the movement of the first seal 22 relative to the valve body 21 along the height direction of the container cover, thereby further reducing the possibility of the first seal 22 falling off the valve body 21.

[0095] Preferably, along the height direction of the container cover, when the first seal 22 is sleeved in the installation groove 211b, the first seal 22 can be in interference fit with the installation groove 211b, so that both side walls of the installation groove 211b can abut against the first seal 22 to further improve the installation reliability of the first seal 22.

[0096] In a specific embodiment, as Figure 7 and Figure 8 shown, the first seal 22 includes a body portion 223, a first extension portion 221 and a second extension portion 222 connected to the body portion 223. Along the height direction of the container cover, the first extension portion 221 and the second extension portion 222 are located on both sides of the body portion 223 and are inclined relative to the body portion 223. The inclination directions of the first extension portion 221 and the second extension portion 222 are opposite. Among them, the body portion 223 is sleeved on the outer wall of the valve body 21 through the installation groove 221b.

[0097] In the embodiment of the present application, along the height direction of the container cover, both the upper surface and the lower surface of the body portion 223 are flat surfaces. When the first seal 22 is connected to the installation groove 221b through the body portion 223, the body portion 223 can be in surface contact with the side wall of the installation groove 221b, so that there is a large contact area between the two, which is beneficial to improving the support effect of the side wall of the installation groove 221b on the first seal 22 and improving the installation reliability of the first seal 22.

[0098] The first seal 22 further includes a first extension portion 221 and a second extension portion 222. Along the height direction of the container cover, the first extension portion 221 and the second extension portion 222 are respectively connected to both sides of the body portion 223.

[0099] Among them, the first extension portion 221 extends relative to the body portion 223 in a direction close to the cover body 1, and the second extension portion 222 extends relative to the body portion 223 in a direction close to the valve cap 26.

[0100] Specifically, both the first extension part 221 and the second extension part 222 are inclined relative to the body part 223, and in the height direction of the pressure vessel cover, the inclination directions of the first extension part 221 and the second extension part 222 are opposite, so that the two can be symmetrically arranged relative to the body part 223. Thus, during the assembly process of the first seal 22 and the valve body 21, there is no need to distinguish the placement position of the first seal 22, which is beneficial to improving the assembly efficiency between the two and enhancing the production efficiency of the non-return valve 2.

[0101] In a specific embodiment, as Figure 2 、 Figure 7 and Figure 8 shown, along the height direction of the container cover, during the movement of the non-return valve 2 relative to the cover body 1, the first extension part 221 can be in close contact and sealed with the inner wall of the cover body 1.

[0102] In the embodiment of the present application, when the steam inside the container body 4 drives the non-return valve 2 to move upward along the height direction of the container cover, it can drive the first seal 22 to move synchronously. During the movement of the non-return valve 2 relative to the cover body 1, the first seal 22 can abut against the inner wall of the cover body 1 through the first extension part 211 to block the installation hole 11. At this time, the container cover is in a sealed state.

[0103] Among them, since the first extension part 221 is inclined relative to the body part 223, when the first extension part 221 abuts against the inner wall of the cover body 1, the first extension part 221 can also undergo elastic deformation under a greater pressure, so that the first extension part 221 and the body part 223 are in close contact with the inner wall of the cover body 1, thereby changing the line contact between the first seal 22 and the inner wall of the cover body 1 to surface contact. Furthermore, by increasing the contact area between the first seal 22 and the inner wall of the cover body 1, the sealing effect of the first seal 22 on the installation hole 11 can be improved, which is beneficial to further enhancing the sealing performance of the container cover.

[0104] In a specific embodiment, as Figure 1 、 Figure 4 and Figure 7 shown, the body part 223 is a hollow cylindrical structure, and the first extension part 221 and the second extension part 222 are arranged along the circumferential direction of the body part 223. A part of the body part 223 extends radially out of the installation groove 211b, and the valve cap 26 abuts against the body part 223.

[0105] In the embodiment of the present application, the hollow cylindrical structure can enable the body part 223 of the first seal 22 to better fit the outer wall of the valve body 21, so as to improve the stability and reliability of the connection between the two. Moreover, the two mutually cooperating cylindrical structures are not only convenient for processing, but also can reduce the assembly difficulty and improve the assembly efficiency between the two.

[0106] When the container lid is in a sealed state, the main body portion 223 can also abut against the inner wall of the lid body 1 through the first extension portion 221, and the circumferentially arranged first extension portion 221 can form a sealed cavity between the main body portion 223 and the inner wall of the lid body 1, which is beneficial to further improving the sealing effect of the first seal 22 on the mounting hole 11.

[0107] When the main body portion 223 is sleeved on the outer wall of the valve body 21 through the mounting groove 211b, a part of the main body portion 223 can radially extend out of the mounting groove 211b. Along the height direction of the container lid, the valve cap 26 can abut against this part of the main body portion 223 that extends out of the mounting groove 211b, so that the main body portion 223 of the first seal 22 can abut against the side wall of the mounting groove 211b and the valve cap 26 at the same time, which is beneficial to further increasing the supporting area of the main body portion 223, thereby improving the installation reliability of the first seal 22.

[0108] In a specific embodiment, as Figure 8 shown, there is an included angle θ1 between the first extension portion 221 and the main body portion 223, and θ1 satisfies 130° ≤ θ1 ≤ 150°, and / or, there is an included angle θ2 between the second extension portion 222 and the main body portion 223, and θ2 satisfies 130° ≤ θ2 ≤ 150°.

[0109] In the embodiment of the present application, the included angle θ1 between the first extension portion 221 and the main body portion 223 and / or the included angle θ2 between the second extension portion 222 and the main body portion 223 can specifically be 130°, 131°, 132°, 133°, 134°, 135°, 136°, 137°, 138°, 139°, 140°, 141°, 142°, 143°, 144°, 145°, 146°, 147°, 148°, 149°, 150°, etc.

[0110] When the included angle between the first extension portion 221 and the main body portion 223 satisfies 130° ≤ θ1 ≤ 150°, the included angle between them is an obtuse angle. And when the first extension portion 221 abuts against the inner wall of the lid body 1, under the action of an external force, the first extension portion 221 can elastically deform relative to the main body portion 223 toward the direction close to the main body portion 223, so that the first seal 22 can abut against the inner wall of the lid body 1 through the first extension portion 221 and the main body portion 223, thereby changing the contact relationship between the two from line contact to surface contact, so as to increase the contact area between the first seal 22 and the inner wall of the lid body 1, which is beneficial to improving the sealing effect on the mounting hole 11 and improving the sealing performance of the container lid.

[0111] When the angle between the second extension portion 222 and the body portion 223 satisfies 130°≤θ2≤150°, the angle between the two is an obtuse angle. Along the height direction of the container cover, the valve cap 26 can not only abut against the portion of the body portion 223 extending out of the mounting groove 211b, but also abut against at least a portion of the second extension portion 222, so that the valve cap 26 can support the first sealing member 22 together with the side wall of the mounting groove 211b, so as to further increase the supporting area of the first sealing member 22 and improve the installation reliability of the first sealing member 22.

[0112] In a specific embodiment, Figure 8 As shown, the thickness of the main body 223 is H, and H satisfies 3mm≤H≤5mm, and / or the radial dimension of the main body 223 is D, and D satisfies 10mm≤D≤20mm.

[0113] In the embodiment of the present application, the thickness H of the main body 223 can be 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, 4.6mm, 4.7mm, 4.8mm, 4.9mm, 5mm, etc.

[0114] When the thickness of the main body 223 satisfies 3mm≤H≤5mm, the contact area between the main body 223 and the valve body 21 is moderate, so that the two can have a suitable contact area to improve the stability and reliability of the connection between the first seal 22 and the valve body 21, and can also avoid the volume of the first seal 22 being too large, so as to reduce the production cost of the first seal 22 while ensuring that the first extension portion 221 can be elastically deformed to improve the sealing effect of the mounting hole 11.

[0115] The radial dimension D of the main body 223 may specifically be 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, etc.

[0116] When the radial dimension of the main body 223 satisfies 10mm≤D≤20mm, the contact area between the main body 223 and the inner wall of the cover body 1 is moderate, so that there can be a suitable contact area between the two, so as to improve the sealing effect of the first seal 22 on the mounting hole 11, and also avoid the volume of the first seal 22 being too large, so as to reduce the production cost of the first seal 22.

[0117] In a specific embodiment, Figure 5 , Figure 6 , Figure 9 and Figure 10As shown, the valve cap 26 includes a support portion 263 and a first step portion 261, the first step portion 261 is located on the side of the support portion 263 away from the first sealing member 22, the support portion 263 is sleeved on the end of the valve body 21 along the height direction of the container cover and is detachably connected, and the end of the valve body 21 along the height direction of the container cover abuts against the first step portion 261, and the support portion 263 abuts against the first sealing member 22.

[0118] In the embodiment of the present application, by providing a detachable connection between the valve body 21 and the valve cap 26, it is convenient for the user to clean or replace the first sealing member 22 in time, so as to reduce the possibility of sealing failure of the check valve 2 during the cooking process, thereby improving the reliability of the container cover during the cooking process. Specifically, along the height direction of the container cover, the end of the valve body 21 facing the container body 4 is provided with an external thread 211c, and the valve cap 26 is provided with an internal thread 263a, and the valve body 21 and the valve cap 26 are threadedly connected by the external thread 211c and the internal thread 263a. In other embodiments, the valve body 21 and the valve cap 26 can also be detachably connected by other means such as snap connection.

[0119] The valve bonnet 26 includes a support portion 263, which has a cavity, and the inner side wall of the cavity is provided with the internal thread 263a. In the process of the valve bonnet 26 and the valve body 21, the support portion 263 can abut against the first seal 22, so that the support portion 263 and the side wall of the installation groove 211b can support the first seal 22, so as to further increase the support area of the first seal 22 and improve the installation reliability of the first seal 22. Specifically, the support portion 263 can abut not only against a portion of the body portion 233 extending radially out of the installation groove 211b, but also against at least a portion of the second extension portion 222.

[0120] The valve bonnet 26 further includes a first step portion 261, which is located on the side of the support portion 263 facing the container body 4. During the process of the valve bonnet 26 and the valve body 21 being matched and connected, the valve body 21 is threadedly connected with the internal thread 263a of the valve bonnet 26 through the external thread 211c. After the connection between the two is completed, the first step portion 261 of the valve bonnet 26 can abut against the end of the valve body 21 facing the container body 4, so that the first step portion 261 and the end of the valve body 21 are in surface contact, which is conducive to increasing the friction between the two, so that the connection relationship between the internal thread 263a and the external thread 211c is not easy to be released, thereby improving the stability and reliability of the connection between the valve bonnet 26 and the valve body 21, and further improving the structural stability of the check valve 2 during the cooking process.

[0121] In a specific embodiment, Figure 1 , Figure 6 and Figure 10As shown, the valve body 21 has a valve cavity 214, and the check valve 2 also includes a valve core assembly, which can move relative to the valve body 21 along the height direction of the container cover. The bottom wall of the valve cap 26 has an opening (not marked in the figure), and a part of the valve core assembly can extend out of the valve cap 26 through the opening. The valve cap 26 also has a second step portion 262. Along the height direction of the container cover, the second step portion 262 is located on the side of the first step portion 261 away from the support portion 263, and the second step portion 262 is used to seal with the valve core assembly.

[0122] In the embodiment of the present application, during the cooking process of the cooking container, the valve core assembly can move along the height direction of the container cover to block the opening of the valve cap 26, so that the container cover is in a sealed state, thereby improving the cooking efficiency of the food. Specifically, the valve core assembly includes a valve core 23, which can move along the height direction of the container cover in the valve cavity 214, and the valve cap 26 also has a second step portion 262, which is located on the side of the first step portion 261 away from the support portion 263 along the height direction of the cooking container. When the valve core 23 abuts against the second step portion 262, the valve core 23 can block the opening of the valve cap 26, so that the container cover is in a sealed state. At this time, the steam inside the container body 4 cannot be discharged to the external environment through the container cover, thereby gradually increasing the pressure inside the container body 4, so as to achieve rapid cooking of food by increasing the pressure inside the container body 4, which is conducive to improving the cooking efficiency.

[0123] In a possible implementation, Figure 3 As shown, the valve body 21 is further provided with an exhaust passage communicating with the valve cavity 214 , and the exhaust passage can communicate the valve cavity 214 with the external environment.

[0124] During the cooking process of the cooking container, when the pressure inside the container body 4 is too high, the steam can push the valve core 23 to move upward along the height direction of the container cover. Driven by the steam, the valve core 23 will separate from the second step portion 262 to open the opening of the valve cap 26, so that the cooking container is in an exhaust state. At this time, the steam inside the container body 4 can be discharged to the external environment through the opening of the valve cap 26, the valve cavity 214 and the exhaust channel to achieve pressure relief of the cooking container, avoid excessive pressure inside the container body 4, and help improve the safety of the cooking container during the cooking process.

[0125] In a possible implementation, Figure 1 and Figure 6 As shown, the side wall of the valve cavity 214 is further provided with a protrusion 214a, and the valve core assembly further includes an elastic member 24, which is located in the valve cavity 214, and the two ends of the elastic member 24 are respectively connected to the valve core 23 and the protrusion 214a.

[0126] In the embodiment of the present application, both ends of the elastic member 24 are respectively connected to the valve core 23 and the protrusion 214a, and are used to drive the valve core 23 to reset after the pressure in the cooking container is released, reducing the possibility that the container lid cannot be in a sealed state due to the valve core 23 being stuck in the valve cavity 214, and improving the reliability of the anti-opening valve 2 during operation.

[0127] Specifically, during the cooking process of the cooking container, when the pressure inside the container body 4 is too high, the driving force generated by the steam is greater than the elastic force of the elastic member 24, causing the elastic member 24 to undergo elastic deformation, so that the steam can push the valve core 23 to move upward along the height direction of the container lid to open the opening of the valve cap 26. At this time, the steam inside the container body 4 can be discharged to the external environment through the opening of the valve cap 26, the valve cavity 214, and the exhaust passage. After the pressure in the cooking container is released, the pressure inside the container body 4 begins to decrease, and the driving force generated by the steam gradually decreases to be less than the elastic force of the elastic member 24. At this time, the elastic member 24 releases the elastic force, and the elastic member 24 can return to its initial state under the action of the elastic force, so that the valve core 23 can move downward along the height direction of the container lid under the action of the elastic force to block the opening of the valve cap 26, and the steam inside the container body 4 cannot be discharged to the external environment through the opening of the valve cap 26, the valve cavity 214, and the exhaust passage.

[0128] In a possible implementation manner, as Figure 1 shown, the valve core assembly further includes a second seal 25, and the second seal 25 is sleeved on the outer wall of the valve core 23. During the cooperation between the valve core 23 and the second step portion 262, the valve core 23 can block the opening of the valve cap 26 through the second seal 25, so as to improve the sealing effect of the valve core 23 on the opening of the valve cap 26, which is beneficial to improving the sealing performance of the container lid in the sealed state, so that the food can be cooked quickly.

[0129] In a possible implementation manner, as Figure 9 shown, the outer side wall of the second step portion 262 is further provided with a plurality of operating surfaces 264 that are circumferentially spaced apart along the container lid. Each operating surface 264 is a flat surface, so as to facilitate the user to operate the valve cap 26 to rotate relative to the valve body 21, which is beneficial to reducing the assembly difficulty between the valve cap 26 and the valve body 21 and improving the assembly efficiency.

[0130] The structure, features, and effects of the present application have been described in detail based on the embodiments shown in the drawings above. The above are only the preferred embodiments of the present application, but the present application is not limited to the scope shown in the drawings. Any changes made according to the concept of the present application, or equivalent embodiments modified into equivalent changes, should still be within the protection scope of the present application as long as they do not exceed the spirit covered by the description and the drawings.

Claims

1. A non-opening valve, used for a container lid, characterized in that, The non-opening valve (2) comprises: Valve body (21); A first sealing member (22), wherein the first sealing member (22) is sleeved on an outer wall of the valve body (21); a valve bonnet (26), wherein the valve bonnet (26) is connected to the valve body (21); The valve cap (26) is in contact with the first sealing member (22) along the height direction of the container cover, so as to support the first sealing member (22).

2. The anti-opening valve according to claim 1, wherein The outer wall of the valve body (21) is further provided with a mounting groove (211b), and the first sealing member (22) is sleeved on the outer wall of the valve body (21) through the mounting groove (211b), and the first sealing member (22) abuts against the side wall of at least one side of the mounting groove (211b) along the height direction of the container cover.

3. The anti-opening valve according to claim 2, wherein, The first sealing member (22) comprises a main body (223) and a first extension portion (221) and a second extension portion (222) connected to the main body (223); along the height direction of the container cover, the first extension portion (221) and the second extension portion (222) are located on both sides of the main body (223) and are inclined relative to the main body (223); the first extension portion (221) and the second extension portion (222) are inclined in opposite directions; The main body (223) is sleeved on the outer wall of the valve body (21) through the mounting groove (211b).

4. The non-opening valve according to claim 3, characterized in that, The main body (223) is a hollow cylindrical structure, and the first extension portion (221) and the second extension portion (222) are arranged along the circumference of the main body (223); A portion of the main body (223) extends radially out of the mounting groove (211b), and the valve cap (26) abuts against the main body (223).

5. The anti-opening valve according to claim 3, characterized in that An angle θ1 is formed between the first extension portion (221) and the main body portion (223), and θ1 satisfies 130°≤θ1≤150°, and / or an angle θ2 is formed between the second extension portion (222) and the main body portion (223), and θ2 satisfies 130°≤θ2≤150°.

6. The anti-opening valve according to claim 3, wherein, The thickness of the main body (223) is H, and H satisfies 3mm≤H≤5mm, and / or the radial dimension of the main body (223) is D, and D satisfies 10mm≤D≤20mm.

7. The stop valve according to any one of claims 1-6, characterized in that, The valve cap (26) comprises a supporting portion (263) and a first step portion (261), wherein the first step portion (261) is located on a side of the supporting portion (263) away from the first sealing member (22), the supporting portion (263) is sleeved on an end portion of the valve body (21) along a height direction of the container cover and is detachably connected, and the end portion of the valve body (21) along a height direction of the container cover abuts against the first step portion (261), and the supporting portion (263) abuts against the first sealing member (22).

8. The anti-opening valve according to claim 7, characterized in that, The valve body (21) has a valve cavity (214), and the non-opening valve (2) further comprises a valve core (23) component, wherein the valve core (23) component can move relative to the valve body (21) along the height direction of the container cover; The bottom wall of the valve cap (26) has an opening, and a part of the valve core (23) assembly can extend out of the valve cap (26) through the opening. The valve cap (26) further has a second step portion (262). Along the height direction of the container lid, the second step portion (262) is located on the side of the first step portion (261) away from the support portion (263). The second step portion (262) is used for sealing cooperation with the valve core (23) assembly.

9. A container lid, characterized in that, The container lid includes: a lid body (1), and the lid body (1) has a mounting hole (11); a non-return valve (2), and the non-return valve (2) is the non-return valve (2) according to any one of claims 1-8; wherein, the non-return valve (2) is installed in the mounting hole (11).

10. The container lid according to claim 9, characterized in that, The first seal (22) includes a body portion (223) and a first extension portion (221) connected to the body portion (223). Along the height direction of the container lid, during the movement of the non-return valve (2) relative to the lid body (1), the first extension portion (221) can be in sealing fit with the inner wall of the lid body (1).

11. The container lid according to claim 9, characterized in that, The container lid is further connected with a handle assembly (5). The handle assembly (5) includes a handle body (51) and a push plate (52). The handle body (51) has a through hole (511), and at least part of the valve body (21) is located in the through hole (511). Along the height direction of the container lid, during the movement of the non-return valve (2) relative to the lid body (1), the valve body (21) can be clamped with the push plate (52).

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