Valve body assembly, upper cover and cooking utensil

Abstract

The utility model provides a valve body assembly, an upper cover and a cooking utensil, the valve body assembly comprises a valve seat, the valve seat is provided with a valve cavity, an inlet and a plurality of outlets, the inlet and the outlets are communicated with the valve cavity, the side wall of the valve seat is provided with a plurality of sealing planes, the outlets and the sealing planes are arranged in a one-to-one correspondence mode, and each outlet penetrates through the corresponding sealing plane; the valve element is movably arranged on the valve seat, the valve element is provided with a sealing position and an opening position, the valve element comprises a plurality of sealing parts, when the valve element is located at the opening position, the multiple outlets communicate with the outside, and when the valve element is located at the sealing position, the multiple sealing parts are attached to the multiple sealing planes in a one-to-one correspondence and sealing mode so as to block the outlets; the sealing plane comprises a first sealing plane arranged on the outer side wall of the valve seat, the outlet comprises a first outlet, the first outlet penetrates through the first sealing plane, the sealing part comprises a first sealing part, and the first sealing part is attached to the first sealing plane in a sealed mode. According to the scheme, the problems of inconvenient cleaning and large exhaust resistance can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of small household appliances, and in particular to a valve body assembly, an upper cover and a cooking utensil. Background Art

[0002] Electric pressure cookers use the principle that the boiling point of liquid increases under high pressure to speed up the stewing efficiency of food and save cooking time.

[0003] In the related art, an electric pressure cooker includes a pot body and an upper cover mounted on the pot body. After cooking, since the pot body is still under high pressure, an electromagnetic exhaust valve mounted on the upper cover is required to exhaust the pressurized air in the pot body before the upper cover can be opened. The electromagnetic exhaust valve has an air intake channel and an air exhaust channel within its valve body. The air intake channel and the air exhaust channel are connected through a communication port provided in the valve body. The electromagnetic valve stem extends into the valve body and seals with the communication port to open or close the communication port.

[0004] However, the existing electromagnetic exhaust valve is difficult to clean after fouling due to the sealing surface being arranged in the valve body, and the exhaust resistance is large. Utility Model Content

[0005] The utility model provides a valve body assembly, an upper cover and a cooking utensil, which solve the problems of inconvenient cleaning of the electromagnetic exhaust valve and large exhaust resistance in the related art.

[0006] According to one aspect of the present invention, a valve body assembly is provided, which includes: a valve seat, having a valve cavity and an inlet and multiple outlets connected to the valve cavity, multiple sealing planes are arranged on the side wall of the valve seat, multiple outlets are arranged in a one-to-one correspondence with the multiple sealing planes, and each outlet passes through the corresponding sealing plane; a valve core is movably arranged on the valve seat, the valve core has a sealing position and an open position, the valve core includes multiple sealing parts, when the valve core is in the open position, the multiple outlets are connected to the outside world, when the valve core is in the sealing position, the multiple sealing parts are sealed and fitted with the multiple sealing planes in a one-to-one correspondence to block the outlets; wherein the sealing plane includes a first sealing plane arranged on the outer side wall of the valve seat, the outlet includes a first outlet, the first outlet passes through the first sealing plane, the sealing part includes a first sealing part, and the first sealing part can be sealed and fitted with the first sealing plane to block the first outlet.

[0007] According to the technical solution of the present invention, the valve body assembly includes a valve seat and a valve core. When cooking, the valve core is moved to the sealing position so that the sealing portion is in sealing contact with the sealing plane, thereby blocking the outlet. This allows a closed space to be formed in the cooking chamber for pressure cooking, thereby accelerating the efficiency of stewing food. After cooking is completed, the valve core is moved to the open position so that the outlet is connected to the outside world, thereby discharging pressurized air in the cooking chamber. Since the first sealing plane is arranged on the outer wall of the valve seat, the first sealing portion is in sealing contact with the first sealing plane and blocks the first outlet. When cleaning, the exposed first sealing plane can be cleaned directly, which is easier to clean than the electromagnetic exhaust valve in the related art. In addition, since the valve body assembly directly exhausts air through multiple outlets and no pipeline is connected after the outlet, the exhaust resistance is reduced.

[0008] Furthermore, the first sealing plane is a vertical plane, which has the advantages of good effect and easy processing.

[0009] Furthermore, the sealing plane further includes a second sealing plane provided on the inner side wall of the valve seat, the outlet includes a second outlet provided through the second sealing plane, and the sealing portion further includes a second sealing portion. When the valve core is in the open position, the second outlet is connected to the outside, and when the valve core is in the sealed position, the second sealing portion seals against the second sealing plane to block the second outlet. After cooking is completed, the valve core is moved to the open position, thereby further accelerating the exhaust speed of the cooking appliance through the second outlet.

[0010] Furthermore, the valve seat includes a mounting seat and a mounting cylinder. The valve cavity, inlet, and first outlet are all disposed on the mounting seat. The mounting seat has a mounting hole extending therethrough. The mounting cylinder is disposed within the mounting hole and protrudes from the inner wall of the mounting seat. The second outlet is the inner hole of the mounting cylinder. The valve core is disposed within the inner hole of the mounting cylinder. The second sealing plane is the end face of the mounting cylinder. A valve seat employing the above-described structure utilizes the end face of the mounting cylinder to form the second sealing plane, facilitating machining of the second sealing plane and eliminating the need to machine the inner sidewall of the valve seat. This reduces machining difficulty, improves machining efficiency, and saves machining time.

[0011] Furthermore, the outer wall of the valve seat further comprises a third sealing surface, the second outlet being disposed through the third sealing surface, and the mounting tube having an annular mounting groove located outside the mounting seat and surrounding the outer periphery of the mounting hole. A sealing ring is disposed within the annular mounting groove and engages with the third sealing surface. The sealing ring and the third sealing surface provide a seal between the mounting seat and the mounting tube, enhancing the sealing effect of the valve body assembly itself and preventing leakage when the valve core is in the sealed position.

[0012] Furthermore, the second and third sealing planes are both vertical surfaces. Using vertical surfaces offers the advantages of good sealing and ease of processing. Alternatively, the outer wall of the valve seat may also be provided with an arcuate surface, with the first, arcuate, and third sealing planes sequentially connected. With this structure, the first and third sealing planes can be formed directly on the outer wall of the valve seat, offering the advantages of a simple structure and ease of processing.

[0013] Furthermore, the valve core further comprises a connecting rod passing through the first outlet and the second outlet, and the first sealing portion and the second sealing portion are both arranged on the connecting rod. The connecting rod has the advantages of simple structure and easy processing.

[0014] Furthermore, a first arcuate sealing surface is provided at the first outlet, the first sealing plane being connected to a side of the first arcuate sealing surface close to the second outlet. When the valve core is in the sealing position, the first sealing portion is in sealing contact with both the first sealing plane and the first arcuate sealing surface. A second arcuate sealing surface is provided at the second outlet, the second sealing plane being connected to a side of the second arcuate sealing surface close to the first outlet. When the valve core is in the sealing position, the second sealing portion is in sealing contact with both the second sealing plane and the second arcuate sealing surface. The first arcuate sealing surface and the second arcuate sealing surface can increase the sealing area between the sealing portion and the outlet, thereby improving the sealing effect. And / or, a positioning hole for fixing the exhaust pipe is provided on the top wall of the valve seat. The provision of the positioning hole facilitates the installation and fixing of the exhaust pipe.

[0015] According to another aspect of the present invention, a top cover is provided. The top cover comprises a cover body and a valve assembly, the valve assembly being disposed through the cover body and being the valve assembly described above. After cooking is complete, the valve core is moved to an open position, allowing the first outlet to communicate with the outside world and expel pressurized air from the cooking chamber. Compared to existing cooking appliances, this top cover utilizes the valve seat for exhaust, in addition to the existing exhaust pipe, thereby accelerating exhaust.

[0016] Furthermore, the upper cover includes an exhaust pipe and a pressure-limiting valve. The exhaust pipe is installed through the cover body, and the pressure-limiting valve is installed above the exhaust pipe to open or close the exhaust pipe. During cooking, the pressure-limiting valve is used to block the exhaust pipe, forming a closed cooking chamber. After cooking, the exhaust pipe can be used to exhaust the pressurized air in the cooking chamber.

[0017] According to another aspect of the present invention, a cooking appliance is provided, comprising an upper cover and a pot body. The upper cover is openably mounted on the pot body, and the upper cover is the aforementioned upper cover. After cooking is completed, the valve core is moved to an open position, connecting the first outlet to the outside world, thereby venting pressurized air within the cooking chamber. Compared to existing cooking appliances, in addition to utilizing the existing exhaust pipe for exhaust, this appliance also utilizes the valve seat for exhaust, thereby accelerating exhaust speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of a valve seat of a valve body assembly provided according to an embodiment of the present utility model is shown;

[0020] Figure 2 A cross-sectional view of a valve seat of a valve body assembly provided according to an embodiment of the present utility model is shown;

[0021] Figure 3 A cross-sectional view of a valve body assembly provided according to an embodiment of the present utility model is shown;

[0022] Figure 4 A cross-sectional view of a valve body assembly, an exhaust pipe, and a pressure limiting valve provided according to an embodiment of the present utility model is shown;

[0023] Figure 5 Shows a cross-sectional view of an upper cover provided according to an embodiment of the utility model;

[0024] Figure 6 Shown Figure 5 A local enlarged view of point A in the figure.

[0025] The above drawings include the following reference numerals:

[0026] 10. Valve seat; 11. Valve cavity; 111. Positioning hole; 12. First sealing plane; 13. Arc-shaped surface; 14. Second sealing plane; 15. Mounting seat; 16. Mounting cylinder; 161. Annular mounting groove; 17. Third sealing plane; 18. First outlet; 181. First arc-shaped sealing surface; 19. Second outlet; 191. Second arc-shaped sealing surface;

[0027] 20. Valve core; 21. First sealing portion; 22. Second sealing portion; 23. Connecting rod;

[0028] 30. Cover;

[0029] 40. Exhaust pipe;

[0030] 50. Pressure limiting valve. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] like Figures 1 to 4 As shown, an embodiment of the present invention provides a valve body assembly, which includes a valve seat 10 and a valve core 20. The valve seat 10 has a valve cavity 11 and an inlet and multiple outlets connected to the valve cavity 11. Multiple sealing planes are provided on the side wall of the valve seat 10. The multiple outlets are provided in a one-to-one correspondence with the multiple sealing planes, and each outlet passes through the corresponding sealing plane; the valve core 20 is movably provided on the valve seat 10, and the valve core 20 has a sealing position and an open position. The valve core 20 includes multiple sealing parts. When the valve core 20 is in the open position, the multiple outlets are connected to the outside world. When the valve core 20 is in the sealing position, the multiple sealing parts are sealed and fitted with the multiple sealing planes in a one-to-one correspondence to block the outlets; wherein the sealing plane includes a first sealing plane 12 provided on the outer wall of the valve seat 10, the outlet includes a first outlet 18, the first outlet 18 passes through the first sealing plane 12, and the sealing part includes a first sealing part 21. The first sealing part 21 can be sealed and fitted with the first sealing plane 12 to block the first outlet 18.

[0033] Using the technical solution of the present invention, the valve body assembly includes a valve seat 10 and a valve core 20. When cooking, the valve core 20 is moved to the sealing position so that the sealing portion is sealed against the sealing plane, blocking the outlet. This allows a closed space to be formed in the cooking chamber for pressure cooking, accelerating the efficiency of stewing food. After cooking, the valve core 20 is moved to the open position so that the outlet is connected to the outside, allowing the pressurized air in the cooking chamber to be discharged. Since the first sealing plane 12 is provided on the outer wall of the valve seat 10, the first sealing portion 21 is sealed against the first sealing plane 12 and blocks the first outlet 18. When cleaning, the exposed first sealing plane 12 can be cleaned directly, which is easier to clean than the electromagnetic exhaust valve in the related art. In addition, since the valve body assembly directly exhausts air through multiple outlets and no pipeline is connected after the outlet, the exhaust resistance is reduced.

[0034] The valve core 20 can move along the axis of the valve cavity or at a certain angle to the axis of the valve cavity. For example, the movement direction of the valve core 20 is perpendicular to the axis of the valve cavity. Furthermore, the valve core 20 can be installed outside the valve seat 10 or inside the valve seat 10. The specific installation method is determined according to actual needs.

[0035] It should be noted that the first sealing plane 12 can be a vertical plane or an inclined plane with a certain angle to the vertical plane.

[0036] Of course, the valve body assembly provided in this embodiment can be used not only in the field of small household appliances, but also in other device fields that require sealing and emptying.

[0037] In this embodiment, the outer wall of the valve seat 10 is a cylindrical surface. By processing the cylindrical surface, the outer wall of the valve seat 10 forms an arc surface 13 and a first sealing plane 12.

[0038] It should be noted that there can be one, two, or more first outlets 18. Due to the external placement of the first sealing plane 12, the valve seat 10 can have sufficient space to arrange multiple first outlets 18, which increases the freedom of structural design. Multiple first outlets 18 include two or more.

[0039] like Figure 1 As shown, the first sealing plane 12 is a vertical plane. The vertical plane has the advantages of good effect and easy processing.

[0040] like Figure 2 and Figure 3 As shown, the sealing plane also includes a second sealing plane 14 provided on the inner sidewall of the valve seat 10. The outlet also includes a second outlet 19, which is provided through the second sealing plane 14. The sealing portion also includes a second sealing portion 22. When the valve core 20 is in the open position, the second outlet 19 is connected to the outside. When the valve core 2 is in the sealed position, the second sealing portion 22 is in sealing contact with the second sealing plane 14 to block the second outlet 19. After cooking is completed, the valve core 20 is moved to the open position, and the second outlet 19 is used to further accelerate the exhaust speed of the cooking appliance.

[0041] When the valve core 20 is in the open position, the first outlet 18 and the second outlet 19 are both connected to the outside to discharge the pressurized air in the cooking cavity. When the valve core 20 is in the sealed position, the valve core 20 is in contact with the first sealing plane 12 and the second sealing plane 14.

[0042] In this embodiment, the movement direction of the valve core 20, the axis of the first outlet 18, and the axis of the second outlet 19 extend in the same direction. Because the first sealing plane 12 is provided on the outer sidewall of the valve seat 10, and the second sealing plane 14 is provided on the inner sidewall of the valve seat 10, when the valve core 20 is in the sealed position, the thrust acting on the sealing surface between the valve core 20 and the first sealing plane 12 and the thrust acting on the sealing surface between the valve core 20 and the second sealing plane 14 are in opposite directions, forming a counteracting effect. As a result, when the valve core 20 moves to the open position, it does not need to overcome the large force acting on the sealing surface, and thus, the valve core 20 can be moved with a smaller force.

[0043] like Figure 2 As shown, the valve seat 10 includes a mounting seat 15 and a mounting cylinder 16. The valve cavity 11, the inlet, and the first outlet 18 are all disposed on the mounting seat 15. The mounting seat 15 has a mounting hole extending therethrough. The mounting cylinder 16 is disposed within the mounting hole and protrudes from the inner wall of the mounting seat 15. The second outlet 19 is the inner hole of the mounting cylinder 16. The valve core 20 is disposed within the inner hole of the mounting cylinder 16. The second sealing plane 14 is the end surface of the mounting cylinder 16. The valve seat 10 adopting the above-described structure utilizes the end surface of the mounting cylinder 16 to form the second sealing plane 14, which facilitates the processing of the second sealing plane 14 and eliminates the need to process the inner side wall of the valve seat 10, thereby reducing processing difficulty, improving processing efficiency, and saving processing time.

[0044] In this embodiment, since the second sealing plane 14 is provided on the mounting tube 16 , different mounting tubes 16 can be selected to adjust the area of the second sealing plane 14 to adjust the sealing area between the valve core 20 and the second sealing plane 14 .

[0045] Both ends of the mounting cylinder 16 are open structures, and the gas in the valve cavity 11 is discharged through the inner hole of the mounting cylinder 16 , so that the inner hole of the mounting cylinder 16 forms a second outlet 19 .

[0046] like Figure 1 and Figure 2 As shown, the outer wall of the valve seat 10 further has a third sealing plane 17, and the second outlet 19 is provided through the third sealing plane 17. The mounting tube 16 has an annular mounting groove 161, which is located outside the mounting seat 15 and surrounds the outer periphery of the mounting hole. A sealing ring is provided in the annular mounting groove 161 and fits against the third sealing plane 17. The sealing between the sealing ring and the third sealing plane 17 can form a seal between the mounting seat 15 and the mounting tube 16, thereby improving the sealing effect of the valve body assembly itself and preventing leakage when the valve core 20 is in the sealed position.

[0047] In this embodiment, an annular protrusion is provided on the outer side wall of the installation tube 16 , and the annular installation groove 161 is provided on the annular protrusion.

[0048] like Figure 1 As shown, the second sealing plane 14 and the third sealing plane 17 are both vertical planes. Using vertical planes has the advantages of good sealing effect and easy processing.

[0049] like Figure 1 As shown, the outer wall of the valve seat 10 is further provided with an arcuate surface 13, and the first sealing plane 12, the arcuate surface 13, and the third sealing plane 17 are sequentially connected. With the above structure, the first sealing plane 12 and the third sealing plane 17 can be directly machined on the outer wall of the valve seat, which has the advantages of simple structure and easy processing.

[0050] In this embodiment, the arcuate surface 13 includes a first arcuate surface and a second arcuate surface, and the first sealing plane 12, the first arcuate surface, the third sealing plane 17 and the second arcuate surface are connected in sequence.

[0051] like Figure 3 As shown, the valve core 20 further includes a connecting rod 23 passing through the first outlet 18 and the second outlet 19. The outer wall of the valve core 20 is provided with a first sealing portion 21 and a second sealing portion 22, both of which are provided on the connecting rod 23. The use of the above-mentioned connecting rod 23 has the advantages of simple structure and easy processing.

[0052] In this embodiment, the first sealing portion 21 and the second sealing portion 22 are both sealing rings.

[0053] like Figure 2 As shown, a first arcuate sealing surface 181 is provided at the first outlet 18, and the first sealing plane 12 is connected to the side of the first arcuate sealing surface 181 close to the second outlet 19. When the valve core 20 is in the sealing position, the first sealing portion 21 is sealed with the first sealing plane 12 and the first arcuate sealing surface 181; a second arcuate sealing surface 191 is provided at the second outlet 19, and the second sealing plane 14 is connected to the side of the second arcuate sealing surface 191 close to the first outlet 18. When the valve core 20 is in the sealing position, the second sealing portion 22 is sealed with the second sealing plane 14 and the second arcuate sealing surface 191. The first arcuate sealing surface 181 and the second arcuate sealing surface 191 can be used to increase the sealing area between the sealing portion and the outlet, thereby improving the sealing effect.

[0054] The top wall of the valve seat 10 is provided with a positioning hole 111 for fixing the exhaust pipe 40. The positioning hole 111 is provided to facilitate the installation and fixation of the exhaust pipe 40.

[0055] like Figure 5As shown, another embodiment of the present invention provides a top cover comprising a cover body 30 and a valve assembly, which is disposed through the cover body 30 and is the valve assembly described above. Using this top cover, after cooking is complete, the valve core 20 is moved to the open position, allowing the first outlet 18 to communicate with the outside world and expel pressurized air from the cooking chamber. Compared to existing cooking appliances, this top cover utilizes the valve seat 10 in addition to the existing exhaust pipe, accelerating exhaust speed.

[0056] In this embodiment, a driving member is disposed in the cover body 30 to drive the valve core 20 to move.

[0057] like Figure 5 and Figure 6 As shown, the upper cover also includes an exhaust pipe 40 and a pressure-limiting valve 50. The exhaust pipe 40 is disposed through the cover body 30, and the pressure-limiting valve 50 is disposed above the exhaust pipe 40 to open or close the exhaust pipe 40. During cooking, the pressure-limiting valve 50 blocks the exhaust pipe 40, creating a closed cooking chamber. After cooking, the exhaust pipe 40 is used to exhaust the pressurized air in the cooking chamber.

[0058] In this embodiment, the exhaust pipe 40 and the pressure limiting valve 50 are existing exhaust components, which, combined with the valve body component, can speed up the exhaust speed.

[0059] The exhaust pipe 40 may be provided separately from the valve seat 10 , or the valve seat 10 and the exhaust pipe 40 may be connected together to form a single component.

[0060] Another embodiment of the present invention provides a cooking appliance comprising an upper cover and a pot body. The upper cover is configured to open and close over the pot body, and the upper cover is the aforementioned upper cover. After cooking is completed, the valve core 20 is moved to the open position, allowing the first outlet 18 to communicate with the outside world, thereby venting pressurized air within the cooking chamber. Compared to existing cooking appliances, in addition to utilizing the existing exhaust pipe for exhaust, the valve seat 10 is also utilized for exhaust, thereby accelerating exhaust speed.

[0061] The cooking utensil is an electric pressure cooker or a multifunctional cooker with a pressure cooking function.

[0062] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0064] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0065] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0066] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A valve body assembly, characterized in that: The valve body assembly comprises: A valve seat (10) having a valve cavity (11) and an inlet and a plurality of outlets connected to the valve cavity (11); a plurality of sealing planes are provided on a side wall of the valve seat (10); the plurality of outlets are provided in a one-to-one correspondence with the plurality of sealing planes, and each of the outlets passes through the corresponding sealing plane; A valve core (20) is movably arranged on the valve seat (10), the valve core (20) having a sealing position and an open position, the valve core (20) including a plurality of sealing portions, when the valve core (20) is in the open position, the plurality of outlets are communicated with the outside, and when the valve core (20) is in the sealing position, the plurality of sealing portions are in sealing contact with the plurality of sealing planes in a one-to-one correspondence to block the outlets; The sealing plane includes a first sealing plane (12) provided on the outer side wall of the valve seat (10), the outlet includes a first outlet (18), the first outlet (18) passes through the first sealing plane (12), and the sealing portion includes a first sealing portion (21), the first sealing portion (21) can be sealed and fitted with the first sealing plane (12) to block the first outlet (18).

2. The valve body assembly according to claim 1, wherein: The first sealing plane (12) is a vertical plane.

3. The valve body assembly according to claim 1, wherein: The sealing plane also includes a second sealing plane (14) arranged on the inner wall of the valve seat (10), and the outlet also includes a second outlet (19), and the second outlet (19) is arranged to pass through the second sealing plane (14). The sealing portion also includes a second sealing portion (22). When the valve core (20) is located in the open position, the second outlet (19) is connected to the outside world. When the valve core (20) is located in the sealing position, the second sealing portion (22) is sealed and fitted with the second sealing plane (14) to block the second outlet (19).

4. The valve body assembly according to claim 3, wherein: The valve seat (10) includes a mounting seat (15) and a mounting cylinder (16); the valve cavity (11), the inlet and the first outlet (18) are all arranged on the mounting seat (15); the mounting seat (15) has a mounting hole arranged therethrough; the mounting cylinder (16) is arranged in the mounting hole and protrudes from the inner wall of the mounting seat (15); the second outlet (19) is the inner hole of the mounting cylinder (16); the valve core (20) is arranged in the inner hole of the mounting cylinder (16); and the second sealing plane (14) is the end face of the mounting cylinder (16).

5. The valve body assembly according to claim 4, characterized in that The outer wall of the valve seat (10) also has a third sealing plane (17), the second outlet (19) is arranged through the third sealing plane (17), the mounting tube (16) has an annular mounting groove (161), the annular mounting groove (161) is located outside the mounting seat (15) and is arranged around the outer periphery of the mounting hole, a sealing ring is arranged in the annular mounting groove (161), and the sealing ring is in contact with the third sealing plane (17).

6. The valve body assembly according to claim 5, characterized in that The second sealing plane (14) and the third sealing plane (17) are both vertical planes; and / or, The outer side wall of the valve seat (10) is further provided with an arcuate surface (13), and the first sealing plane (12), the arcuate surface (13) and the third sealing plane (17) are connected in sequence.

7. The valve body assembly according to claim 3, wherein: The valve core (20) further comprises a connecting rod (23) passing through the first outlet (18) and the second outlet (19), and the first sealing portion (21) and the second sealing portion (22) are both arranged on the connecting rod (23).

8. The valve body assembly according to claim 3, wherein: A first arcuate sealing surface (181) is provided at the first outlet (18), the first sealing plane (12) is connected to a side of the first arcuate sealing surface (181) close to the second outlet (19), and when the valve core (20) is located in the sealing position, the first sealing portion (21) is in sealing contact with both the first sealing plane (12) and the first arcuate sealing surface (181); a second arcuate sealing surface (191) is provided at the second outlet (19), the second sealing plane (14) is connected to a side of the second arcuate sealing surface (191) close to the first outlet (18), and when the valve core (20) is located in the sealing position, the second sealing portion (22) is in sealing contact with both the second sealing plane (14) and the second arcuate sealing surface (191); and / or, A positioning hole (111) for fixing the exhaust pipe (40) is provided on the top wall of the valve seat (10).

9. A top cover, characterized in that: The upper cover comprises a cover body (30) and a valve body assembly. The valve body assembly is passed through the cover body (30). The valve body assembly is the valve body assembly according to any one of claims 1 to 8.

10. The upper cover according to claim 9, characterized in that: The upper cover further comprises an exhaust pipe (40) and a pressure limiting valve (50); the exhaust pipe (40) is provided through the cover body (30); and the pressure limiting valve (50) is provided above the exhaust pipe (40) to open or block the exhaust pipe (40).

11. A cooking utensil, characterized in that: The cooking utensil comprises an upper cover and a pot body, wherein the upper cover is openably and closably arranged on the pot body, and the upper cover is the upper cover according to claim 9 or 10.

Images