Valve body assembly, cover body assembly and cooking utensil

Abstract

The invention provides a valve body assembly, a cover body assembly and a cooking utensil, the valve body assembly comprises a valve body structure, the valve body structure is provided with a valve cavity, a first opening and a plurality of second openings, and the first opening and the second openings are communicated with the valve cavity; the sealing structure comprises a connecting rod and a plurality of sealing pieces arranged on the connecting rod, the connecting rod is movably arranged in the second openings in a penetrating mode, and the sealing pieces and the second openings are arranged in a one-to-one correspondence mode; the driving piece is in driving fit with the connecting rod to drive the connecting rod to move and enable the sealing piece to avoid the second opening; the reset piece is arranged between the valve body structure and the connecting rod, and the reset piece is in driving fit with the connecting rod and can enable the sealing piece to be kept at the position for blocking the second opening; the reset piece and the driving piece are located on the same side of the valve cavity. According to the technical scheme, the problem that the cleaning difficulty of the steam base is large due to the fact that the structure in the steam base occupies a large space in the related technology is effectively solved.

Description

Technical Field

[0001] This invention relates to the field of small household appliance technology, and more specifically, to a valve body assembly, a cover assembly, and a cooking utensil. Background Technology

[0002] Pressure cooking appliances generally include a pot body and a lid. The lid body includes a liner and a locking lid, with locking teeth on the locking lid. During pressurized cooking, the lid body is connected to the pot body via these teeth. Simultaneously, a vent pipe, in conjunction with a valve body, allows for pressure release. Specifically, the lid body includes a steam seat, a valve body, and a sealing structure. The valve body and sealing structure are housed within the steam seat. A reset element and a drive element are located on opposite sides of the valve body. The drive element opens the valve body via the sealing structure, while the reset element closes the valve body via the sealing structure.

[0003] During the venting process, food residue from the cooking appliance is easily discharged from the valve body and enters the steam seat. However, since the reset and drive components are located on both sides of the valve body, they occupy a lot of space in the steam seat, making it difficult to clean the steam seat. Summary of the Invention

[0004] The main objective of this invention is to provide a valve body assembly, a cover assembly, and a cooking appliance to solve the problem in related technologies where the internal structure of the steam seat occupies a large space, which leads to the difficulty in cleaning the steam seat.

[0005] To achieve the above objectives, according to one aspect of the present invention, a valve body assembly is provided, comprising: a valve body structure having a valve cavity and a first opening communicating with the valve cavity and a plurality of second openings; a sealing structure including a connecting rod and a plurality of sealing elements disposed on the connecting rod, the connecting rod being movably disposed within the plurality of second openings, and the plurality of sealing elements being disposed corresponding to the plurality of second openings; a driving member drivingly cooperating with the connecting rod to move the connecting rod and cause the sealing elements to avoid the second openings; and a resetting member disposed between the valve body structure and the connecting rod, the resetting member drivingly cooperating with the connecting rod and enabling the sealing elements to remain in a position blocking the second openings; wherein the resetting member and the driving member are located on the same side of the valve cavity.

[0006] According to the technical solution of this invention, the valve body structure has a valve cavity, a first opening, and multiple second openings. The sealing structure includes a connecting rod and multiple sealing elements disposed on the connecting rod. Each sealing element corresponds to one of the multiple second openings. The connecting rod is movably inserted into the multiple second openings. A driving element drives the connecting rod and moves it, allowing the sealing elements to avoid the second openings. A reset element is disposed between the connecting rod and the valve body structure. The reset element drives the connecting rod to move so that the sealing elements remain in the position of blocking the second openings. Both the reset element and the driving element are located on the same side of the valve cavity. With the above arrangement, when the driving element drives the connecting rod to move, the sealing elements open the second openings, allowing fluid to flow out. When the driving element stops driving, the reset element pushes the connecting rod, causing the connecting rod to move and the sealing elements to block the second outlet, preventing further fluid flow. Furthermore, since the reset component and the drive component are both located on the same side of the valve cavity, the valve body structure can be arranged more rationally and the space occupied can be reduced, thus avoiding large-area obstruction and making the valve body structure easier to clean. Therefore, the technical solution of this application effectively solves the problem in related technologies where the internal structure of the steam seat occupies a large space, leading to greater difficulty in cleaning the steam seat.

[0007] Furthermore, the valve body structure includes a mounting base and a valve body disposed on the mounting base. The valve cavity, the first opening, and multiple second openings are all disposed on the valve body. The reset element is disposed between the mounting base and the connecting rod, or between the valve body and the connecting rod. This arrangement effectively secures the reset element, thereby enabling the reset element to effectively drive the connecting rod.

[0008] Furthermore, a stop is provided at the end of the connecting rod facing the drive component, and a reset component is located between the stop and the mounting base, or between the stop and the valve body. The stop has a simple structure, is easy to install, and the reset component can abut against the stop, thereby making the position of the reset component relatively stable.

[0009] Furthermore, the mounting base includes a base body and a mounting portion disposed within the base body. A portion of the connecting rod structure is located within the mounting portion, and a reset member is located between the mounting portion and the stop portion. The mounting portion serves two purposes: firstly, it positions and guides the connecting rod; secondly, it secures the reset member, thereby ensuring its stability.

[0010] Furthermore, the mounting section includes a housing and a vertical plate disposed within the housing. A portion of the connecting rod structure is located within the housing. The vertical plate has a clearance recess for the connecting rod, and a reset member is disposed on the side of the vertical plate away from the valve body. The connecting rod can be positioned within the clearance recess, thereby achieving rod positioning. Simultaneously, the vertical plate can stop the reset member, confining it between the vertical plate and the stop portion.

[0011] Furthermore, the housing includes a first baffle, a second baffle, and a fixing cover. The first and second baffles are spaced apart on the base body, and the upright plate is connected between the first and second baffles. The fixing cover is abutted on the first and second baffles. The aforementioned first and second baffles improve the structural strength of the upright plate, thereby enhancing its stability. The fixing cover, abutting the first and second baffles, protects the upright plate and the reset component.

[0012] Furthermore, both the first and second baffles are provided with discharge channels. These discharge channels enable the discharge of fluid.

[0013] Furthermore, the valve body structure also includes a fixed cylinder, which is inserted into a second opening. The connecting rod passes through the fixed cylinder, and an inner protrusion is provided inside the fixed cylinder. The reset member is located between the inner protrusion and the stop portion. The inner protrusion can stop the reset member, and the reset member can be inserted into the fixed cylinder, which makes the position of the reset member more stable.

[0014] Furthermore, the fixed cylinder includes a first cylinder section and a second cylinder section connected to the first cylinder section. The diameter of the first cylinder section is smaller than the diameter of the second cylinder section. The first cylinder section is inserted into a second opening, and the second cylinder section is located outside the valve body. The aforementioned second cylinder section being located outside the valve body makes the position of the fixed cylinder more stable.

[0015] Furthermore, the valve body assembly also includes a push structure, which is disposed on the mounting base and located between the connecting rod and the drive member. The drive member drives the push structure to move, thereby moving the connecting rod. This push structure arrangement increases the distance between the second opening and the drive member, thus preventing fluid discharged through the second opening from directly impacting the drive member and preventing damage to the drive member.

[0016] Furthermore, the pushing structure includes a pusher and a transmission part, the transmission part being movably mounted on the mounting base, the pusher being located on the outside of the mounting base, and the driving member engaging with the pusher. The transmission part can correspond to the connecting rod, and the pusher being located on the outside of the mounting base and engaging with the driving member.

[0017] Furthermore, the actuating structure also includes a connecting portion that connects to the push top. A first stop is provided on the connecting portion, and a second stop is provided on the mounting base. The first and second stopes engage to prevent the actuating structure from separating from the mounting base. The connecting portion provides position for the first stop and makes its position more stable. Simultaneously, because the first and second stopes engage, it prevents the actuating structure from moving away from the valve body and separating from the mounting base.

[0018] Furthermore, the valve body assembly also includes a push rod seat, which is mounted on a mounting base and has a through hole. The connecting part is movably inserted into the through hole. The connecting part can be inserted into the through hole, and the through hole can guide the connecting part, making the movement direction of the push structure more stable.

[0019] Furthermore, a magnetic attraction structure is provided between the pushing structure and the connecting rod. This magnetic attraction structure enables a magnetic connection between the pushing structure and the connecting rod.

[0020] According to a second aspect of the present invention, a cover assembly is provided, including a valve body assembly, wherein the valve body assembly is the valve body assembly described above. The valve body assembly described above makes it easier to clean and prevents long-term accumulation of impurities; therefore, the cover assembly having the valve body assembly described above also has the aforementioned advantages.

[0021] According to a third aspect of the present invention, a cooking appliance is provided, including a lid assembly, the lid assembly being the one described above. The lid assembly makes the valve assembly easier to clean, and therefore the cooking appliance having the lid assembly also has the aforementioned advantages. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 A cross-sectional schematic diagram of a valve body assembly according to a first embodiment of the present invention is shown;

[0024] Figure 2 It shows Figure 1 A partial enlarged view of the valve body assembly;

[0025] Figure 3 It shows Figure 1 A cross-sectional schematic diagram of the sealing structure of the valve body assembly blocking the second opening;

[0026] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the valve body of the valve body assembly;

[0027] Figure 5 It shows Figure 1 A three-dimensional structural diagram of the connecting rod of the valve body assembly;

[0028] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the mounting base for the valve body assembly;

[0029] Figure 7 It shows Figure 6 A three-dimensional structural diagram of the mounting base from another perspective;

[0030] Figure 8 It shows Figure 1 A three-dimensional structural diagram of the fixing cover of the valve body assembly;

[0031] Figure 9 It shows Figure 1 A three-dimensional structural diagram of the actuation structure of the valve body assembly;

[0032] Figure 10 It shows Figure 1 A three-dimensional structural diagram of the push rod seat of the valve body assembly;

[0033] Figure 11 It shows Figure 10 A three-dimensional structural diagram of the push rod holder from another perspective;

[0034] Figure 12 A cross-sectional schematic diagram of a second embodiment of the valve body assembly according to the present invention is shown;

[0035] Figure 13 It shows Figure 12 A three-dimensional structural diagram of the mounting base for the valve body assembly;

[0036] Figure 14 It shows Figure 12 A three-dimensional structural diagram of the actuation structure of the valve body assembly;

[0037] Figure 15 It shows Figure 12 A three-dimensional structural diagram of the push rod seat of the valve body assembly;

[0038] Figure 16 A cross-sectional schematic diagram of a third embodiment of the valve body assembly according to the present invention is shown;

[0039] Figure 17 A cross-sectional schematic diagram of a fourth embodiment of the valve body assembly according to the present invention is shown;

[0040] Figure 18 A cross-sectional schematic diagram of an embodiment of the cover assembly according to the present invention is shown.

[0041] The above figures include the following reference numerals:

[0042] 10. Valve body structure; 11. Valve cavity; 12. First opening; 13. Second opening; 14. Mounting seat; 141. Seat body; 142. Mounting part; 1421. Housing; 14211. First baffle; 14212. Second baffle; 14213. Fixing cover; 1422. Vertical plate; 14221. Recessed part; 143. Second stop; 15. Valve body; 16. Fixing cylinder; 161. Inner protruding edge; 162. First cylinder section; 163. Second cylinder section; 20. Sealing structure; 21. Connecting rod; 211. Stop part; 22. Sealing element; 31. Driving element; 32. Reset element; 40. Pushing structure; 41. Push top; 42. Transmission part; 43. Connecting part; 431. First stop; 50. Push rod seat; 51. Through hole part; 60. Magnetic attraction fit structure. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0046] like Figure 1 as well as Figures 3 to 5 As shown, in Embodiment 1, the valve body assembly includes: a valve body structure 10, a sealing structure 20, a driving member 31, and a resetting member 32. The valve body structure 10 has a valve cavity 11 and a first opening 12 and a plurality of second openings 13 communicating with the valve cavity 11. The sealing structure 20 includes a connecting rod 21 and a plurality of sealing members 22 disposed on the connecting rod 21. The connecting rod 21 is movably inserted into the plurality of second openings 13, and the plurality of sealing members 22 are correspondingly disposed with respect to the plurality of second openings 13. The driving member 31 drives the connecting rod 21 to move the connecting rod 21 and cause the sealing members 22 to avoid the second openings 13. The resetting member 32 is disposed between the valve body structure 10 and the connecting rod 21, and drives the connecting rod 21 to keep the sealing members 22 in a position blocking the second openings 13. The resetting member 32 and the driving member 31 are located on the same side of the valve cavity 11.

[0047] Applying the technical solution of Embodiment 1, the valve body structure 10 has a valve cavity 11, a first opening 12, and multiple second openings 13. The sealing structure 20 includes a connecting rod 21 and multiple sealing elements 22 disposed on the connecting rod 21. Each sealing element 22 corresponds to one of the multiple second openings 13. The connecting rod 21 is movably inserted into the multiple second openings 13. The driving element 31 drives the connecting rod 21 and moves it. When the connecting rod 21 moves, the sealing elements 22 can avoid the second openings 13. A reset element 32 is disposed between the connecting rod 21 and the valve body structure 10. The reset element 32 can drive the connecting rod 21 to move so that the sealing elements 22 remain in the position of blocking the second openings 13. Furthermore, the reset element 32 and the driving element 31 are both located on the same side of the valve cavity 11. With the above configuration, when the driving member 31 drives the connecting rod 21 to move, the sealing member 22 can open the second opening 13, allowing fluid to flow out from the second opening 13. When the driving member 31 stops driving, the reset member 32 can push the connecting rod 21, causing the connecting rod 21 to move and the sealing member 22 to block the second opening 13, preventing further fluid flow. Furthermore, since the reset member 32 and the driving member 31 are both located on the same side of the valve cavity 11, the arrangement of the valve body structure 10 is more reasonable, and the space occupied is reduced, thus avoiding large-area obstruction and making cleaning of the valve body structure 10 easier. Therefore, the technical solution of Embodiment 1 effectively solves the problem in related technologies where the internal structure of the steam seat occupies a large space, leading to difficulties in cleaning the steam seat.

[0048] It should be noted that the reference line is the line passing through the centerline of valve chamber 11 and perpendicular to the direction of movement of connecting rod 21. "Same side" as mentioned above refers to the side located on the reference line. The fluid is either gas or liquid. "Multiple" as mentioned above refers to two or more.

[0049] like Figure 1 , Figure 3 as well as Figure 4 As shown, in Embodiment 1, the valve body structure 10 includes a mounting base 14 and a valve body 15 disposed on the mounting base 14. A valve cavity 11, a first opening 12, and multiple second openings 13 are all disposed on the valve body 15. A reset member 32 is disposed between the mounting base 14 and the connecting rod 21. This arrangement effectively fixes the reset member 32, thereby enabling the reset member 32 to effectively drive the connecting rod 21.

[0050] In Embodiment 1, the mounting base 14 is a steam base.

[0051] Specifically, in Embodiment 1, a pressure limiting valve is also provided on the valve body 15.

[0052] like Figure 1 , Figure 3 as well as Figure 5 As shown, in Embodiment 1, a stop portion 211 is provided at the end of the connecting rod 21 facing the driving member 31. The reset member 32 is located between the stop portion 211 and the mounting base 14, or between the stop portion 211 and the valve body 15. The stop portion 211 has a simple structure and is easy to install, and the reset member 32 can abut against the stop portion 211, thereby making the position of the reset member 32 relatively stable.

[0053] like Figure 1 , Figure 3 , Figure 6 as well as Figure 7 As shown, in Embodiment 1, the mounting base 14 includes a base body 141 and a mounting portion 142 disposed within the base body 141. A portion of the connecting rod 21 is located within the mounting portion 142, and the reset member 32 is located between the mounting portion 142 and the stop portion 211. The mounting portion 142 can position and guide the connecting rod 21, and it can also fix the reset member 32, thereby ensuring the stability of the reset member 32.

[0054] like Figure 1 , Figure 3 , Figure 6 as well as Figure 7As shown, in Embodiment 1, the mounting part 142 includes a housing 1421 and a vertical plate 1422 disposed within the housing 1421. A portion of the connecting rod 21 is located within the housing 1421. The vertical plate 1422 is provided with a clearance recess 14221 to avoid the connecting rod 21. The reset member 32 is disposed on the side of the vertical plate 1422 away from the valve body 15. The connecting rod 21 can be positioned within the clearance recess 14221, thereby achieving positioning of the connecting rod 21. Simultaneously, the vertical plate 1422 can stop the reset member 32, thus confining the reset member 32 between the vertical plate 1422 and the stop portion 211.

[0055] like Figure 1 , Figure 3 as well as Figures 6 to 8 As shown, in Embodiment 1, the housing 1421 includes a first baffle 14211, a second baffle 14212, and a fixing cover 14213. The first baffle 14211 and the second baffle 14212 are spaced apart on the base body 141, and the upright plate 1422 is connected between the first baffle 14211 and the second baffle 14212. The fixing cover 14213 covers the first baffle 14211 and the second baffle 14212. The first baffle 14211 and the second baffle 14212 can improve the structural strength of the upright plate 1422, thereby making the upright plate 1422 more stable. The fixing cover 14213 can cover the first baffle 14211 and the second baffle 14212, thereby protecting the upright plate 1422 and the reset member 32.

[0056] like Figure 1 , Figure 3 as well as Figures 6 to 8 As shown, in Embodiment 1, both the first baffle 14211 and the second baffle 14212 are provided with discharge channels. These discharge channels enable the discharge of fluid.

[0057] like Figures 1 to 3 as well as Figure 9 As shown, in Embodiment 1, the valve body assembly further includes a push structure 40, which is disposed on the mounting base 14 and located between the connecting rod 21 and the driving member 31. The driving member 31 drives the push structure 40 to move, thereby moving the connecting rod 21. The push structure 40 is configured to increase the distance between the second opening 13 and the driving member 31, thus preventing the fluid discharged through the second opening 13 from directly impacting the driving member 31, thereby preventing damage to the driving member 31 and making the driving process of the driving member 31 more stable.

[0058] like Figures 1 to 3 as well as Figure 9As shown, in Embodiment 1, the pushing structure 40 includes a pushing top 41 and a transmission part 42. The transmission part 42 is movably mounted on the mounting base 14, and the pushing top 41 is located on the outside of the mounting base 14. The driving member 31 drives and cooperates with the pushing top 41. The transmission part 42 can correspond to the connecting rod 21, and the pushing top 41 is located on the outside of the mounting base 14 and can cooperate with the driving member 31.

[0059] Specifically, the cross-sectional area of ​​the push top 41 is larger than the cross-sectional area of ​​the transmission part 42. The push top 41 is a plate structure, and the transmission part 42 is a rod structure.

[0060] like Figures 1 to 3 as well as Figure 9 As shown, in Embodiment 1, the push structure 40 further includes a connecting portion 43, which is connected to the push top 41. A first stop 431 is provided on the connecting portion 43, and a second stop 143 is provided on the mounting base 14. The first stop 431 and the second stop 143 engage in a stop-and-go action to prevent the push structure 40 from separating from the mounting base 14. The connecting portion 43 provides a position for the first stop 431, making its position more stable. Furthermore, because the first stop 431 and the second stop 143 engage in a stop-and-go action, it prevents the push structure 40 from moving away from the valve body 15 and separating from the mounting base 14.

[0061] Specifically, in Embodiment 1, the first stop 431 is a first stop block, and the second stop 143 is a second stop block. The first stop block and the second stop block have simple structures, are easy to set up, and can effectively achieve stop engagement.

[0062] The bottom surface of the mounting base 14 is provided with a recess, and the first stop 431 is formed by the edge of the recess facing the drive member 31, which can effectively reduce the thickness of the valve body assembly.

[0063] like Figures 1 to 3 as well as Figure 10 and Figure 11 As shown, in Embodiment 1, the valve body assembly further includes a push rod seat 50, which is disposed on the mounting base 14. The push rod seat 50 has a through hole 51, and the connecting part 43 is movably inserted into the through hole 51. The connecting part 43 can be inserted into the through hole 51, and the through hole 51 can guide the connecting part 43, making the moving direction of the push structure 40 more stable.

[0064] It should be noted that in Embodiment 1, the through hole 51 is a rectangular hole, and the connecting part 43 is a guide plate. The guide plate passes through the rectangular hole, which improves the guiding effect, enabling limiting in four directions: up, down, left, and right.

[0065] like Figure 1 , Figure 3 , Figure 10 as well as Figure 11 As shown, in Embodiment 1, the push rod seat 50 has an annular rib on the side facing the mounting base 14. The annular rib is wrapped around the outer periphery of the second connecting hole and inserted into the first connecting hole. The annular rib serves to guide the transmission part 42.

[0066] like Figure 1 , Figure 3 , Figure 10 as well as Figure 11 As shown, in Embodiment 1, the push rod seat 50 is further provided with a boss on the side facing the mounting base 14. The boss is located on the outer periphery of the annular rib. The valve body assembly also includes a sealing sleeve. The push structure 40 is inserted into the sealing sleeve, and part of the sealing sleeve is located between the boss and the mounting base 14. The boss can better fix the sealing sleeve, that is, part of the sealing sleeve is pressed between the boss and the mounting base 14, thereby achieving a better sealing effect and preventing fluid from being directly blown towards the drive component 31.

[0067] like Figure 10 and Figure 11 As shown, in Embodiment 1, the push rod seat 50 is further provided with a protrusion, which is disposed on the outer periphery of the through hole portion 51. This arrangement allows for a greater length of the through hole portion 51, thereby improving the guiding effect.

[0068] like Figure 2 As shown, in Embodiment 1, a portion of the through-hole portion 51 is located below the mounting base 14, and the lower surface of the mounting base 14 and the through-hole portion 51 jointly guide the connecting portion 43. The connecting portion 43 is sandwiched between the through-hole portion 51 and the lower surface of the mounting base 14, thus ensuring the guiding effect.

[0069] In Embodiment 1, the mounting base 14 is provided with a first connecting hole, and the push rod base 50 is provided with a second connecting hole corresponding to the first connecting hole. The pushing structure 40 is movably disposed within the first and second connecting holes and drives the connecting rod 21 to move. The pushing structure 40 passes through the first and second connecting holes, which makes the moving direction of the pushing structure 40 relatively stable, that is, the first and second connecting holes can guide the pushing structure 40.

[0070] Specifically, in Embodiment 1, there are two second openings 13 and two seals 22. The two seals 22 and the two second openings 13 are arranged in a one-to-one correspondence. The two seals 22 include an inner seal and an outer seal. The inner seal is disposed inside the valve cavity 11 and seals with the inner side of one second opening 13. The outer seal is disposed outside the valve cavity 11 and seals with the outer side of the other second opening 13. The area of ​​the second opening 13 corresponding to the inner seal is the first area S1, and the area of ​​the second opening 13 corresponding to the outer seal is the second area S2. The first area S1 and the second area S2 satisfy the condition: S1 > S2.

[0071] The fluid in the valve chamber 11 exerts force on both the inner and outer seals simultaneously. When the seal blocks the second opening 13, the fluid can squeeze the inner seal, causing the outer seal to tend to move towards the inner seal, thus improving the sealing effect. Furthermore, since the first area S1 is larger than the second area S2, the force exerted by the fluid on the inner seal is greater than the force exerted by the fluid on the outer seal. As a result, under the force on the inner seal, the connecting rod 21 can pull the outer seal, allowing the outer seal to fit against the valve body, further enhancing the sealing effect. Since both the inner and outer seals are mounted on the connecting rod 21, and the inner and outer seals can move synchronously, when the seal 22 moves from blocking the second opening 13 to opening the second opening 13, the fluid can flow out from the gap between the outer seal and the corresponding second opening 13. At the same time, there is also a gap between the inner seal and the corresponding second opening 13, through which the fluid can flow out. When the seal continues to move, the resistance encountered by the seal 22 is small, that is, the movement of the sealing structure 20 is relatively easy.

[0072] It should be noted that when the sealing element 22 moves from blocking the second opening 13 to opening the second opening 13, the outer sealing element separates from the second opening 13 first. In this way, the fluid in the valve cavity 11 can flow out through the gap between the outer sealing element and the second opening 13. Thus, when the sealing element 22 continues to move, the inner sealing element needs to overcome less resistance, which makes the movement of the sealing element 22 less strenuous.

[0073] When all seals 22 open the second opening 13, the distance between the inner seal and the corresponding second opening 13 is a first distance A1, and the distance between the outer seal and the corresponding second opening 13 is a second distance A2, wherein the first distance A1 and the second distance A2 satisfy: A1 < A2. With the above settings, when the valve body assembly switches from the open state to the closed state, the inner seal can first seal the corresponding second opening 13, and then the outer seal can seal the corresponding second opening 13. When the outer seal seals the corresponding second opening 13, the inner seal can deform. When the valve body assembly switches from the closed state to the open state, the inner seal resets, thus making the movement of the sealing structure easier.

[0074] The assembly process of the valve body assembly in Example 1 is as follows:

[0075] Insert the transmission part 42 into the second connecting hole, insert the connecting part 43 into the through hole part 51, install the sealing sleeve on the transmission part 42, and then install the push rod seat 50 on the mounting seat 14. At this time, the second stop 143 is located between the first stop 431 and the drive part 31.

[0076] The difference between Embodiment 2 and Embodiment 1 is that the reset element 32 is disposed between the valve body 15 and the connecting rod 21.

[0077] like Figures 12 to 15 As shown, in Embodiment 2, the valve body structure 10 further includes a fixed cylinder 16, which is inserted into a second opening 13. The connecting rod 21 passes through the fixed cylinder 16, and an inner protrusion 161 is provided inside the fixed cylinder 16. The reset member 32 is located between the inner protrusion 161 and the stop portion 211. The inner protrusion 161 can stop the reset member 32, and the reset member 32 can be inserted into the fixed cylinder 16, which makes the position of the reset member 32 more stable.

[0078] like Figures 12 to 15 As shown, in Embodiment 2, the fixed cylinder 16 includes a first cylinder section 162 and a second cylinder section 163 connected to the first cylinder section 162. The diameter of the first cylinder section 162 is smaller than the diameter of the second cylinder section 163. The first cylinder section 162 is inserted into a second opening 13, and the second cylinder section 163 is located outside the valve body 15. The aforementioned second cylinder section 163 being located outside the valve body 15 makes the position of the fixed cylinder 16 more stable.

[0079] The difference between Embodiment 3 and Embodiment 2 is that the pushing structure 40 and the connecting rod 21 are provided with a magnetic attraction structure 60.

[0080] Specifically, such as Figure 16As shown, in Embodiment 3, a magnetic attraction structure 60 is provided between the pushing structure 40 and the connecting rod 21. The magnetic attraction structure 60 enables the pushing structure 40 and the connecting rod 21 to engage magnetically. The magnetic attraction structure 60 includes a first magnetic element, which is disposed on the side of the transmission part 42 facing the connecting rod 21.

[0081] The difference between Embodiment 4 and Embodiment 3 is that in Embodiment 4, a second magnetic element is provided on the side of the connecting rod facing the pusher.

[0082] Specifically, such as Figure 17 As shown, in Embodiment 4, the magnetic attraction structure 60 further includes a second magnetic element, which is disposed on the side of the connecting rod 21 facing the transmission part 42, and the first magnetic element and the second magnetic element can magnetically engage.

[0083] According to a second aspect of this application, a cover assembly is provided, such as Figure 18 As shown, the cover assembly of this embodiment includes a valve body assembly, which is the valve body assembly described above. The valve body assembly described above makes it easier to clean and avoids long-term accumulation of impurities. Therefore, the cover assembly having the valve body assembly described above also has the aforementioned advantages.

[0084] The cover assembly of this embodiment also includes a face cover, an inner liner, and a pressure-bearing cover. The pressure-bearing cover is rotatably disposed below the inner liner, and the face cover is disposed above the inner liner. The mounting base 14 is disposed on the inner liner, and the valve body 15 communicates with the pressure-bearing cover.

[0085] According to a third aspect of this application, a cooking appliance is provided. The cooking appliance of this embodiment includes a lid assembly, which is the lid assembly described above. The lid assembly makes the valve assembly easier to clean, and therefore the cooking appliance having the lid assembly also has the aforementioned advantages.

[0086] Specifically, the cooking appliance in this embodiment includes an electric pressure cooker or a rice cooker.

[0087] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0088] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0089] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0090] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A valve body assembly, characterized in that, include: A valve body structure (10) having a valve cavity (11) and a first opening (12) communicating with the valve cavity (11) and a plurality of second openings (13); A sealing structure (20) includes a connecting rod (21) and a plurality of sealing elements (22) disposed on the connecting rod (21). The connecting rod (21) is movably inserted into a plurality of second openings (13), and the plurality of sealing elements (22) are disposed in a one-to-one correspondence with the plurality of second openings (13). The driving member (31) is driven to cooperate with the connecting rod (21) to move the connecting rod (21) and cause the sealing member (22) to avoid the second opening (13); A reset member (32) is disposed between the valve body structure (10) and the connecting rod (21). The reset member (32) is driven to cooperate with the connecting rod (21) and enables the sealing member (22) to remain in the position of blocking the second opening (13). The reset member (32) and the drive member (31) are located on the same side of the valve chamber (11).

2. The valve body assembly according to claim 1, characterized in that, The valve body structure (10) includes a mounting base (14) and a valve body (15) disposed on the mounting base (14). The valve cavity (11), the first opening (12) and a plurality of second openings (13) are all disposed on the valve body (15). The reset member (32) is disposed between the mounting base (14) and the connecting rod (21) or the reset member (32) is disposed between the valve body (15) and the connecting rod (21).

3. The valve body assembly according to claim 2, characterized in that, The connecting rod (21) has a stop (211) at one end facing the drive member (31), and the reset member (32) is located between the stop (211) and the mounting base (14), or the reset member (32) is located between the stop (211) and the valve body (15).

4. The valve body assembly according to claim 3, characterized in that, The mounting base (14) includes a base body (141) and a mounting portion (142) disposed within the base body (141). A portion of the structure of the connecting rod (21) is located within the mounting portion (142), and the reset member (32) is located between the mounting portion (142) and the stop portion (211).

5. The valve body assembly according to claim 4, characterized in that, The mounting part (142) includes a housing (1421) and a vertical plate (1422) disposed in the housing (1421). Part of the structure of the connecting rod (21) is located in the housing (1421). The vertical plate (1422) is provided with a relief recess (14221) to avoid the connecting rod (21). The reset member (32) is disposed on the side of the vertical plate (1422) away from the valve body (15).

6. The valve body assembly according to claim 5, characterized in that, The housing (1421) includes a first baffle (14211), a second baffle (14212), and a fixing cover (14213). The first baffle (14211) and the second baffle (14212) are spaced apart on the seat body (141). The upright plate (1422) is connected between the first baffle (14211) and the second baffle (14212). The fixing cover (14213) is placed on the first baffle (14211) and the second baffle (14212).

7. The valve body assembly according to claim 6, characterized in that, Both the first baffle (14211) and the second baffle (14212) are provided with discharge channels.

8. The valve body assembly according to claim 3, characterized in that, The valve body structure (10) further includes a fixing cylinder (16), which is inserted into a second opening (13). The connecting rod (21) passes through the fixing cylinder (16). An inner protrusion (161) is provided inside the fixing cylinder (16). The reset member (32) is located between the inner protrusion (161) and the stop (211).

9. The valve body assembly according to claim 8, characterized in that, The fixed cylinder (16) includes a first cylinder section (162) and a second cylinder section (163) connected to the first cylinder section (162). The diameter of the first cylinder section (162) is smaller than the diameter of the second cylinder section (163). The first cylinder section (162) is inserted into a second opening (13), and the second cylinder section (163) is located outside the valve body (15).

10. The valve body assembly according to claim 2, characterized in that, The valve body assembly further includes a push structure (40), which is disposed on the mounting base (14) and located between the connecting rod (21) and the drive member (31). The drive member (31) drives the push structure (40) to move so as to move the connecting rod (21).

11. The valve body assembly according to claim 10, characterized in that, The pushing structure (40) includes a pushing top (41) and a transmission part (42). The transmission part (42) is movably mounted on the mounting base (14). The pushing top (41) is located on the outside of the mounting base (14). The driving member (31) drives and cooperates with the pushing top (41).

12. The valve body assembly according to claim 11, characterized in that, The pushing structure (40) further includes a connecting part (43), which is connected to the pushing top (41). A first stop (431) is provided on the connecting part (43), and a second stop (143) is provided on the mounting base (14). The first stop (431) and the second stop (143) cooperate to prevent the pushing structure (40) from separating from the mounting base (14).

13. The valve body assembly according to claim 12, characterized in that, The valve body assembly also includes a push rod seat (50), which is disposed on the mounting base (14). The push rod seat (50) is provided with a through hole (51), and the connecting part (43) is movably inserted into the through hole (51).

14. The valve body assembly according to claim 10, characterized in that, A magnetic attraction structure (60) is provided between the pushing structure (40) and the connecting rod (21).

15. A cover assembly, comprising a valve body assembly, characterized in that, The valve body assembly is the valve body assembly according to any one of claims 1 to 14.

16. A cooking utensil, comprising a lid assembly, characterized in that, The cover assembly is the cover assembly as described in claim 15.

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