Valve body, pressure limiting valve and cooker

Abstract

The valve body comprises an inner valve body, a valve bonnet is arranged at the top end of the inner valve body, the inner valve body and the valve bonnet are of an integrated structure, and a clamp spring installation groove is formed in the lower portion of the inner valve body. The clamp spring is arranged in the clamp spring mounting groove; the inner valve body is sleeved with the outer valve body, the upper portion of the outer valve body is provided with a containing space for containing the valve bonnet, and a groove is formed in the inner side of the bottom of the outer valve body and can contain the clamping spring; the inner diameter of the outer valve body is smaller than the outer diameter of the clamping spring, and the outer valve body cannot be separated from the inner valve body after the clamping spring is installed. The problems that an existing valve bonnet connected to an inner valve body in a pressed mode is prone to deformation in the high-temperature and high-pressure exhaust state, and the valve bonnet falls off are solved. The valve bonnet and the inner valve body are arranged to be of an integrated structure, the problem that the valve bonnet connected to the inner valve body in a pressing mode falls off due to plastic deformation caused by high temperature and high pressure when a product is in an exhaust state can be prevented, and then it is guaranteed that the air tightness of the product meets the requirement.

Description

Technical Field

[0001] The present disclosure relates to the technical field of cooking utensils, and particularly to a valve body, a pressure limiting valve and a cooking utensil. Background Art

[0002] As a common cooking utensil in daily life, a pressure cooker mainly adjusts the pressure through a pressure limiting valve, and then controls the release of steam in the pot, so as to maintain the pressure in the pot within a safe range.

[0003] At present, the dual-stage pressure limiting valves on the market mainly include an inner valve body and an outer valve body. During the installation process, the inner valve body is installed from bottom to top inside the outer valve body, and the valve cap is pressed on the inner valve body to form a pressure limiting valve assembly. However, since the high temperature and high pressure will cause the plastic to deform under the exhaust state of the product, it is very easy to cause the valve cap pressed on the inner valve body to fall off, resulting in the user being unable to use it normally. Summary of the Utility Model

[0004] In view of this, embodiments of the present application provide a valve body, a pressure limiting valve and a cooking utensil to solve the above problems.

[0005] In a first aspect, embodiments of the present application provide a valve body, including:

[0006] An inner valve body, with a valve cap provided at the top, and the inner valve body and the valve cap are of an integral structure. A snap ring installation groove is provided at the lower part of the inner valve body;

[0007] A snap ring, arranged in the snap ring installation groove;

[0008] An outer valve body, sleeved outside the inner valve body, and a receiving space for placing the valve cap is provided at the upper part of the outer valve body. A groove is provided at the inner side of the bottom of the outer valve body, which can accommodate the snap ring;

[0009] And the inner diameter of the outer valve body is smaller than the outer diameter of the snap ring. After installing the snap ring, the outer valve body cannot be separated from the inner valve body.

[0010] In some embodiments, the top of the groove is flush with the top of the snap ring installation groove, and both are tangent to the top of the snap ring; and the height of the groove is greater than the height of the snap ring installation groove.

[0011] In some embodiments, the maximum outer diameter of the valve cap is greater than the minimum inner diameter of the outer valve body, and there is a gap between the side wall of the valve cap and the side wall of the receiving space.

[0012] In some embodiments, a plurality of protrusions are oppositely arranged in the circumferential direction of the outer valve body;

[0013] The plurality of protrusions are evenly distributed along the circumferential direction of the outer valve body.

[0014] In some of these embodiments, the snap ring has an arc-shaped structure.

[0015] In some of these embodiments, the inner valve body and the valve cap are integrally formed by injection molding.

[0016] In a second aspect, an embodiment of the present application provides a pressure limiting valve including the valve body described in any one of the above, comprising a ball valve assembly and a valve body;

[0017] The ball valve assembly is disposed inside the cavity formed by the valve cap and the inner valve body, and is used for sealing cooperation with the exhaust pipe.

[0018] In some of these embodiments, the ball valve assembly includes: a connecting member and a valve core;

[0019] The connecting member is located below the valve cap;

[0020] The valve core is located below the connecting member.

[0021] In a third aspect, an embodiment of the present application provides a cooking utensil including the pressure limiting valve described in any one of the above, comprising a pot body and a lid body that cooperate with each other, a pressure limiting valve, an exhaust pipe, and a base;

[0022] The pressure limiting valve is disposed inside the base, and the base is located at the top end of the lid body;

[0023] One end of the exhaust pipe is in sealing cooperation with the ball valve assembly, and the other end extends into the interior of the pot body.

[0024] In some of these embodiments, there are several convex accommodation grooves opposite to each other inside the base, which can accommodate the corresponding protrusions;

[0025] One side of each convex accommodation groove is provided with an exhaust step, and the height of the exhaust step gradually increases from one end close to the convex accommodation groove to the other end.

[0026] Advantageous effects:

[0027] In order to solve the problem that the valve cap crimped on the inner valve body in the prior art is prone to deformation under the exhaust state of high temperature and high pressure, resulting in the valve cap falling off, in this application, the inner valve body and the valve cap are set as an integrally formed structure, that is, the inner valve body and the valve cap form a component, which is arranged inside the outer valve body from top to bottom. At the same time, since a snap ring installation groove is provided at the lower part of the inner valve body, a groove is oppositely provided on the inner side of the bottom of the outer valve body, and the inner diameter of the outer valve body is smaller than the outer diameter of the snap ring, it can be realized that after the integrally structured inner valve body and valve cap are installed inside the outer valve body, the snap ring provided between the snap ring installation groove and the groove can ensure that the outer valve body will not fall off under high temperature and high pressure. It should be noted that by setting the inner valve body and the valve cap on its top as an integrally formed structure, this application can effectively solve the problems of poor crimping between the existing valve cap and the inner valve body structure and the valve cap falling off caused by the deformation of the plastic valve cap under the state of high temperature and high pressure exhaust pipe, thereby ensuring that the air tightness of the product meets the requirements. In addition, the overall structure of the valve body in this application is simple, convenient for installation, and can effectively save production and maintenance costs.

[0028] Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings included in and constituting a part of this specification, together with the specification, illustrate exemplary embodiments, features, and aspects of the present disclosure and are used to explain the principles of the present disclosure.

[0030] Figure 1 Showing a structural schematic diagram of an existing pressure valve assembly;

[0031] Figure 2 Showing an exploded view of the valve body according to an embodiment of the present invention;

[0032] Figure 3 Showing a structural schematic diagram of the outer valve body according to an embodiment of the present invention;

[0033] Figure 4 Showing a sectional view of the pressure limiting valve under high pressure according to an embodiment of the present invention;

[0034] Figure 5 Showing a sectional view of the pressure limiting valve under low pressure according to an embodiment of the present invention;

[0035] Figure 6 Showing a structural schematic diagram of the base according to an embodiment of the present invention;

[0036] Figure 7 Showing a structural schematic diagram of a cooking utensil according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. Like reference numerals in the drawings denote functionally identical or similar elements. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0038] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0039] In addition, for a better description of the present disclosure, numerous specific details are given in the following detailed description. Those skilled in the art should understand that the present disclosure can be implemented without some of these specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art are not described in detail so as to highlight the gist of the present disclosure.

[0040] As Figure 1 shown, in the prior art, during the installation of the pressure-limiting valve, the inner valve body 10 needs to be installed into the outer valve body 20 from bottom to top, and then the valve cap 30 is crimped onto the inner valve body 10 to form an assembly, and the outer valve body 20 can be blocked by the valve cap 30. A protrusion 11 is provided at the lower part of the inner valve body. Under high-pressure conditions, the protrusion 11 of the inner valve body 10 can cooperate with the corresponding groove in the outer valve body 30, and the protrusion 11 part of the inner valve body 10 is used to block the outer valve body 20, so that the outer valve body 20 assembly cannot fall off, and the protrusion 11 can also be hidden in the groove of the outer valve body 20. However, in the exhaust state of the above pressure-limiting valve, the high temperature and high pressure are extremely likely to cause plastic deformation, and it is very easy for the valve cap crimped on the inner valve body to fall off, resulting in the situation that the user cannot use it normally.

[0041] As Figure 2 shown, an embodiment of the present application provides a valve body, including: an inner valve body 100, with a valve cap 200 provided at the top, and the inner valve body 100 and the valve cap 200 are of an integral structure. A snap ring installation groove 110 is opened at the lower part of the inner valve body 100; a snap ring 400 is arranged in the snap ring installation groove 110; an outer valve body 300 is sleeved outside the inner valve body 100, and a receiving space 310 for placing the valve cap 200 is provided at the upper part of the outer valve body 300. A groove 320 is provided at the inner side of the bottom of the outer valve body 300, which can accommodate the snap ring 400; and the inner diameter of the outer valve body 300 is smaller than the outer diameter of the snap ring 400, and the outer valve body 300 cannot fall off the inner valve body 100 after the snap ring 400 is installed.

[0042] In this embodiment, after the valve cap 200 and the inner valve body 100 are integrally formed, they are installed inside the outer valve body 300 from top to bottom. Among them, a snap ring installation groove 110 is provided at the lower part of the inner valve body 100 of this embodiment for installing the snap ring 400. At the same time, a groove 320 is correspondingly provided at the bottom of the outer valve body 300 at the position corresponding to the snap ring 400. It should be especially noted that the inner diameter of the outer valve body 300 of this embodiment is smaller than the outer diameter of the snap ring 400. After the integrally formed inner valve body 100 and the valve cap 200 are installed inside the outer valve body 300 from top to bottom, the outer valve body 300 can be clamped by the snap ring 400 placed between the snap ring installation groove 110 and the groove 320, so that the outer valve body 300 cannot be separated from the inner valve body 100. It should be noted that in this application, the inner valve body 100 and the valve cap 200 provided at its top are integrally structured and installed inside the outer valve body 300, which can effectively solve the problem in the prior art that due to the separation of the valve cap and the inner valve body, it is extremely easy for the valve cap crimped on the inner valve body to be deformed by heat and fall off under the exhaust state of high temperature and high pressure, ensuring that the valve body can meet the airtightness requirements during use.

[0043] In some of these embodiments, the top of the groove 320 is flush with the top of the snap ring installation groove 110, and both are tangent to the top of the snap ring 400; and the height of the groove 320 is greater than the height of the snap ring installation groove 110.

[0044] In this embodiment, the main body of the inner valve body 100 is in a cylindrical structure. A snap ring installation groove 110 is provided at the lower part of the inner valve body 100 for placing the snap ring 400. Specifically, the snap ring installation groove 110 is located at the position of the lower part of the inner valve body 100 away from the valve cap 200, and is circumferentially provided along the outer circumference of the cylindrical inner valve body 100. At the same time, a groove 320 is circumferentially provided inside the outer valve body 300 at the position corresponding to the snap ring installation groove 110. The top of the groove 320 is flush with the top of the snap ring installation groove 110. The size of the snap ring 400 matches the height of the snap ring installation groove 110, and one side can be clamped inside the snap ring installation groove 110, and the other side is located in the groove 320. It should be noted that in this embodiment, the height of the groove 320 is greater than the height of the snap ring installation groove 110, and the height of the bottom position of the snap ring installation groove 110 is higher than the height of the bottom of the outer valve body, that is, the snap ring 400 can be hidden in the groove 320 on the outer valve body, and can drive the outer valve body to move upward through the snap ring 400 placed between the snap ring installation groove 110 and the groove 320 under the high-pressure exhaust state, and prevent the outer valve body 300 from falling.

[0045] In some of these embodiments, the maximum outer diameter of the valve cap 200 is greater than the minimum inner diameter of the outer valve body 300, and there is a gap between the side wall of the valve cap 200 and the side wall of the accommodation space 310.

[0046] In this embodiment, the valve cap 200 does not contact the side wall of the accommodation space 310 at the top of the outer valve body 300, ensuring that the outer valve body 300 can move up and down relative to the exhaust pipe 510. At the same time, the maximum outer diameter of the valve cap 200 is greater than the minimum inner diameter of the outer valve body 300. That is to say, when the outer valve body 300 moves upward, the valve cap 200 extending out of the inner valve body 100 can block the outer valve body 300, so that the moving position of the outer valve body 300 can meet the actual use requirements.

[0047] As Figure 3 shown, in some embodiments, a plurality of protrusions 330 are oppositely arranged in the circumferential direction of the outer valve body 300; the plurality of protrusions 330 are evenly distributed along the circumferential direction of the outer valve body 300.

[0048] In this embodiment, the upper, middle, and lower parts of the outer valve body 300 are all cylindrical structures, and the diameters decrease in sequence. At least two protrusions 330 are arranged in the circumferential direction of the outer valve body 300, and each protrusion 330 is arranged in the vertical direction of the outer valve body 300. Specifically, the protrusions 330 in this embodiment extend from the lower part of the outer valve body 300 to the upper part of the outer valve body 300, and the top end of the protrusion 330 is in contact with the bottom surface of the upper part of the outer valve body 300. It should also be noted that a handle 340 is further arranged on the outer valve body 300 in this embodiment. Specifically, the handle 340 is located at the upper end of one of the protrusions 330, and the handle 340 extends from one side of the outer valve body 300 in a direction away from the outer valve body 300. The height of the handle 340 matches the height of the upper part of the outer valve body 300. During the use of the valve body, the main body of the outer valve body 300 can be driven to rotate axially through the handle 340 to achieve the purpose of changing the position setting of the outer valve body 300.

[0049] In some embodiments, the snap ring is in an arc-shaped structure.

[0050] The snap ring 400 in this embodiment is in an arc-shaped structure and is arranged along the snap ring installation groove 110, matching the snap ring installation groove 110. And the snap ring is preferably a metal snap ring. It should be noted that in the high-pressure state, one side of the snap ring 400 is located in the snap ring installation groove 110, and the other side is located in the groove 320 of the outer valve body 300. And the outer diameter of the snap ring 400 is greater than the inner diameter of the outer valve body 300, which can prevent the outer valve body 300 from detaching from the inner valve body 100.

[0051] In some embodiments, the inner valve body 100 and the valve cap 200 are integrally formed by injection molding.

[0052] It should be noted that in this embodiment, the injection molding process is preferably used to set the valve cap 200 on the inner valve body 100 to integrally form the two. In order to solve the problems of plastic deformation and valve cap detachment that easily occur in the valve cap crimped on the inner valve body under the exhaust state of high temperature and high pressure in the prior art, the inner valve body and the valve cap are injection molded into an integral structure, which can effectively prevent the problem of valve cap detachment, thus ensuring that users can use the valve body normally. Moreover, the injection molding of the inner valve body 100 and the valve cap 200 has a simple processing technology and is suitable for mass production, effectively improving the product competitiveness.

[0053] As Figure 4 and Figure 5 shown, in a second aspect, an embodiment of the present application provides a pressure limiting valve including any one of the above valve bodies. Specifically, the pressure limiting valve includes a ball valve assembly and a valve body; the ball valve assembly is arranged inside the cavity formed by the valve cap 200 and the inner valve body 100 and is used for sealing cooperation with the exhaust pipe 510.

[0054] In this embodiment, a pressure limiting valve is provided, which is provided with the above valve body, and a ball valve assembly is arranged inside the valve cap of the valve body. Specifically, one end of the ball valve assembly is arranged inside the cavity formed by the valve cap 200 and the inner valve body 100, and the other end is in sealing cooperation with the exhaust port of the exhaust pipe 510. It should be noted that during use, the bottom end of the ball valve assembly fits with the exhaust port of the exhaust pipe 510 to form a sealing structure, which can effectively prevent air leakage.

[0055] In some of these embodiments, the ball valve assembly includes: a connecting member 212 and a valve core 211. The connecting member 212 is located below the valve cap 200; the valve core 211 is located below the connecting member 212.

[0056] In this embodiment, the connecting member 212 and the valve core 211 are connected by any one of a necking structure, a welding method, or a crimping method to form the ball valve assembly 210. Among them, the valve core 211 is preferably a spherical structure, and the arc surface structure at its bottom can fit with the exhaust port of the exhaust pipe 510, and the two cooperate with each other to have good sealing performance when applied to a cooking utensil.

[0057] As Figure 7 shown, in a third aspect, an embodiment of the present application provides a cooking utensil including the pressure limiting valve of any one of the above. The cooking utensil includes a pot body 1000 and a lid body 2000, a pressure limiting valve, an exhaust pipe 510, and a base 500 that cooperate with each other; the pressure limiting valve is arranged inside the base 500, the base 500 is located at the top end of the lid body, one end of the exhaust pipe 510 is in sealing cooperation with the ball valve assembly, and the other end extends into the pot body 1000.

[0058] It should be noted that the cooking utensil provided in this embodiment includes a pot body 1000 and a lid body 2000 that cooperate with each other, and a sealing ring is also provided between the pot body 1000 and the lid body 2000. And a base 500 is provided on the lid body for accommodating a pressure limiting valve. And an exhaust pipe 510 penetrates through the lid body 2000, with one end located inside the pot body and the other end cooperating with the ball valve assembly 210 of the pressure limiting valve for sealing. Specifically, the outside of the pressure limiting valve in this embodiment is sleeved with a base 500, and there is a gap between the protrusion 330 of the outer valve body 300 of the pressure limiting valve and the inner wall of the base 500. When exhausting gas under high temperature and high pressure, the gas in the pot body moves upward along the exhaust pipe 510 and flows out from the exhaust port, and the flowing gas drives the integrally formed valve cap 200 and the inner valve body 100 to move upward. At this time, the snap ring 400 arranged between the snap ring installation groove 110 and the groove 320 drives the outer valve body 300 to move upward, and the gas can be discharged from the gap between the outer valve body 300 and the inner wall of the base 500. Here, it should be noted that the maximum outer diameter of the valve cap 200 is greater than the minimum inner diameter of the outer valve body, which can block the upward moving outer valve body 300. At the same time, relying on the snap ring 400 arranged between the snap ring installation groove 110 and the groove 320, it is possible to prevent the outer valve body 300 from falling when the outer valve body 300 moves downward, thereby ensuring the normal operation of the pressure limiting valve.

[0059] Moreover, the cooking utensil of this embodiment further includes a three-claw disc 600, a nut 700 and an anti-blocking cover 800; the three-claw disc 600 is sleeved outside the exhaust pipe 510 and is located below the lid body; the nut 700 is arranged below the three-claw disc 600 and is fixed on the exhaust pipe 510; the anti-blocking cover 800 is sleeved outside the three-claw disc 600 and is detachably connected to the bottom of the lid body. Specifically, the three-claw disc 600 is clamped on the lower part of the intake pipe 510 from bottom to top, the nut 700 is entirely located below the three-claw disc 600 and is screwed to the intake pipe 510, and the three-claw disc 600 and the nut 700 are covered with the anti-blocking cover 800, and the anti-blocking cover 800 is detachably connected to the bottom of the lid body for filtering food residues and can be detached for cleaning during use to prevent the exhaust pipe 510 from being blocked.

[0060] It should also be noted that a pair of handle assemblies are provided in a cooperative manner for the pot body and the lid body of this embodiment, specifically including an upper handle 2100 and a lower handle 1100. Among them, the upper handle 2100 is arranged on the top of the lid body 2000 and extends toward one side of the lid body 2000, and the lower handle 1100 is oppositely arranged on one side of the pot body 1000. By the mutual cooperation of the upper handle 2100 and the lower handle 1100, the lid body 2000 can be rotated relative to the pot body 1000 to achieve the purpose of opening the cooking utensil.

[0061] Such as Figure 6As shown, in some of these embodiments, a number of convex accommodation grooves 520 are relatively provided inside the base 500, which can accommodate the corresponding protrusions 330; an exhaust step is provided on one side of each convex accommodation groove 520, and the height of the exhaust step gradually increases from one end close to the convex accommodation groove to the other end.

[0062] In this embodiment, a cavity is provided inside the base 500, and a corresponding number of convex accommodation grooves 520 are provided at positions corresponding to a number of protrusions 330 inside the cavity for accommodating the corresponding protrusions 330. And a corresponding exhaust step 530 is also provided on one side of each convex accommodation groove. Taking one convex accommodation groove 520 and the adjacent exhaust step 530 as an example, the height of the exhaust step 530 gradually increases from one end close to the convex accommodation groove 520 to the other end.

[0063] It should be specifically noted that the cooking utensil of this embodiment can achieve three states: high pressure, low pressure and exhaust. Specifically, when the protrusion 330 on the side wall of the outer valve body 300 is located inside the convex accommodation groove 520, the weights of the outer valve body 300, the inner valve body 100 and the valve cap 200 act together at the exhaust port, so as to achieve the high-pressure effect. Further, when it is desired to achieve a low-pressure effect, such as 50 kPa, the outer valve body 340 can be rotated by the handle provided outside the outer valve body 300. At this time, the protrusion 330 of the outer valve body 300 moves from the position of the convex accommodation groove 520 to the exhaust step 530, and when the outer valve body 300 rotates until only the weights of the inner valve body 100 and the valve cap 200 act on the exhaust port and the weight of the outer valve body 300 acts on the exhaust step 530, the low-pressure effect is achieved. Further still, when it is desired to achieve the exhaust effect, the outer valve body 300 is continuously rotated until the protrusion 330 of the outer valve body 300 is placed at the highest position of the exhaust step 530. At this time, the weights of the outer valve body 300, the inner valve body 100 and the valve cap 200 all act on the exhaust step 530, and the final exhaust effect can be achieved. That is, through the mutual cooperation of the convex accommodation groove and the exhaust step, the state of the cooking utensil can be flexibly switched to meet various usage requirements of users.

[0064] Unless otherwise defined, the technical terms or scientific terms involved in this application shall have the ordinary meanings understood by those with ordinary skills in the technical field to which this application pertains. The words "a", "an", "the" and similar words involved in this application do not indicate a limitation in quantity and may represent a singular or plural number. The terms "comprising", "including", "having" and any variations thereof involved in this application are intended to cover non-exclusive inclusion. The similar words such as "connected", "coupled" and "linked" involved in this application are not limited to physical or mechanical connections, but include electrical connections, whether direct or indirect. The term "plurality" involved in this application refers to two or more, and "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. The character " / " generally indicates an "or" relationship between the associated objects before and after. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific order for the objects.

[0065] The above embodiments only express several implementation manners of this application, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of this application, several modifications or improvements can still be made, and these all belong to the protection scope of this application. Therefore, the protection scope of the patent of this application shall be subject to the appended claims.

Claims

1. A valve body, characterized in that, Comprising: An inner valve body, with a valve cap provided at the top, and the inner valve body and the valve cap are of an integral structure. A snap ring installation groove is provided at the lower part of the inner valve body; A snap ring, disposed in the snap ring installation groove; An outer valve body, sleeved outside the inner valve body, and a receiving space for placing the valve cap is provided at the upper part of the outer valve body. A groove is provided at the inner side of the bottom of the outer valve body, which can accommodate the snap ring; And the inner diameter of the outer valve body is smaller than the outer diameter of the snap ring. After installing the snap ring, the outer valve body cannot be separated from the inner valve body.

2. The valve body according to claim 1, wherein, The top of the groove is flush with the top of the snap ring installation groove, and both are tangent to the top of the snap ring; and the height of the groove is greater than the height of the snap ring installation groove.

3. The valve body according to claim 1, characterized in that The maximum outer diameter of the valve cap is greater than the minimum inner diameter of the outer valve body, and there is a gap between the side wall of the valve cap and the side wall of the receiving space.

4. The valve body according to claim 1, characterized in that, A plurality of protrusions are oppositely arranged in the circumferential direction of the outer valve body; The plurality of protrusions are evenly distributed along the circumferential direction of the outer valve body.

5. The valve body according to any one of claims 1 to 4, characterized in that, The snap ring is of an arc-shaped structure.

6. The valve body according to any one of claims 1 to 4, characterized in that The inner valve body and the valve cap are integrally formed by injection molding.

7. A pressure limiting valve comprising the valve body according to any one of claims 1 to 6, characterized in that, Comprising a ball valve assembly and a valve body; The ball valve assembly is disposed inside the cavity formed by the valve cap and the inner valve body, and is used for sealing cooperation with the exhaust pipe.

8. The pressure limiting valve according to claim 7, characterized in that, The ball valve assembly includes: a connecting piece and a valve core; The connecting piece is located below the valve cap; The valve core is located below the connecting piece.

9. A cooking utensil comprising the pressure limiting valve according to claim 7 or 8, characterized in that, Comprising a pot body and a lid body, a pressure limiting valve, an exhaust pipe and a base which cooperate with each other; The pressure limiting valve is disposed inside the base, and the base is located at the top of the lid body; One end of the exhaust pipe is in sealing cooperation with the ball valve assembly and the other end extends into the interior of the pot body.

10. The cooking utensil according to claim 9, wherein, A plurality of protrusion receiving grooves are oppositely arranged inside the base, which can accommodate the corresponding protrusions; An exhaust step is provided on one side of each protrusion receiving groove, and the height of the exhaust step gradually increases from one end close to the protrusion receiving groove to the other end.

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