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, and the valve body assembly comprises a mounting seat; the valve body is provided with a valve cavity, and a first opening and a second opening which are communicated with the valve cavity; the sealing structure comprises a connecting rod and 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 pushing piece is movably arranged on the mounting base, and the pushing piece can push the connecting rod when moving so that the sealing piece can avoid the second opening; 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. According to the technical scheme, the problems that in the related technology, steam is prone to rushing to the electromagnetic valve during exhausting, and the stability of the electromagnetic valve driving sealing structure is affected are 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 consist of a pot body and a lid. The lid body includes a liner and a locking mechanism, with locking teeth on the locking mechanism. During pressurized cooking, the lid body is connected to the pot body via these teeth. Simultaneously, an exhaust pipe, in conjunction with a pressure relief valve, allows for pressure release. Specifically, during cooking, food is placed into the pot body, the lid is installed, and the locking mechanism is rotated to engage the locking teeth. After cooking, the pressure is released through the exhaust pipe and pressure relief valve. Once pressure is released, the lid body is rotated to separate the locking teeth, allowing the lid to be opened.

[0003] In related technologies, to achieve rapid venting, a valve chamber and a sealing structure are typically provided on the cover. When rapid venting is required, a solenoid valve drives the sealing structure to open the valve chamber, thereby enabling venting. During this process, the gas in the valve chamber is rapidly discharged and easily rushes towards the solenoid valve. This makes the process of the solenoid valve driving the sealing structure unstable and can easily cause the sealing structure to re-block the valve chamber, thus affecting the venting efficiency. 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 the related art where steam easily rushes towards the solenoid valve during exhaust and affects the stability of the solenoid valve's drive sealing structure.

[0005] To achieve the above objectives, according to one aspect of the present invention, a valve body assembly is provided, comprising: a mounting base; a valve body having a valve cavity and a first opening and a second opening communicating with the valve cavity; a sealing structure including a connecting rod and a sealing element disposed on the connecting rod, the connecting rod being movably disposed within the second opening, and the sealing element being disposed corresponding to a plurality of second openings; a pushing member movably disposed on the mounting base, the pushing member being able to push the connecting rod when moving, so that the sealing element avoids the second openings; and a resetting member, which is driven to cooperate with the connecting rod and is able to hold the sealing element in a position blocking the second openings.

[0006] According to the technical solution of this invention, the valve body has a valve cavity and a first opening and a second opening communicating with the valve cavity. The sealing structure includes a connecting rod and a sealing element. The connecting rod is movably inserted into the second opening, and the sealing element is correspondingly disposed with respect to the second opening. A pushing element is movably disposed on a mounting base, and a resetting element is driven and cooperates with the connecting rod to keep the sealing element in the position of blocking the second opening. With the above arrangement, fluid enters the valve cavity from the first opening and flows out from the second opening, or fluid enters the valve cavity from the second opening and flows out from the first opening. The pushing element can drive the connecting rod to move so that the sealing element avoids the second opening. At this time, the second opening is opened, and fluid can flow in or out. The pushing element can increase the distance between the driving element and the second opening, thereby avoiding the fluid from affecting the driving element, thus making the driving process of the driving element more stable. Therefore, the technical solution of this application effectively solves the problem in the related art that steam easily rushes towards the solenoid valve during exhaust and affects the stability of the solenoid valve driving sealing structure.

[0007] Furthermore, the valve body assembly also includes a limiting structure disposed between the mounting base and the push member. When the push member moves away from the valve body, the limiting structure prevents the push member from separating from the mounting base. The limiting structure ensures greater stability of the push member's position, preventing excessive movement away from the valve body.

[0008] Furthermore, the limiting structure includes a first stop block and a second stop block that engage in a limiting fit. The first stop block is mounted on the mounting base, and the second stop block is mounted on the pushing member. The first stop block and the second stop block can engage in a stopping fit. The structure of the first stop block and the second stop block is simple, easy to install, and can effectively achieve the stopping fit.

[0009] Furthermore, the mounting base is provided with a first connecting hole, and the valve body assembly also includes a push rod seat, which is mounted on the mounting base and located on the outside of the mounting base. The push rod seat is provided with a second connecting hole corresponding to the first connecting hole. The push member is movably disposed within the first and second connecting holes and drives the connecting rod to move. The push member passes through the first and second connecting holes, which makes the movement direction of the push member relatively stable, that is, the first and second connecting holes can guide the push member.

[0010] Furthermore, the pushing member includes a pushing top and a transmission part. The pushing top is located on the outside of the mounting base, and the transmission part is movably disposed within the first and second connecting holes. The pushing top facilitates driving engagement with the driving member, and the transmission part enables driving engagement with the connecting rod.

[0011] Furthermore, the push rod seat is also provided with a guide hole, and the pusher also includes a guide part, which is disposed on the pusher top and inserted into the guide hole. The guide part passes through the guide hole, which can further restrict the movement direction of the pusher and ensure that the pusher and the connecting rod cooperate, avoiding misalignment between the pusher and the connecting rod.

[0012] Furthermore, the guide hole is a rectangular hole, and the guide part 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.

[0013] Furthermore, a portion of the guide hole is located below the mounting base, and the lower surface of the mounting base and the guide hole together guide the guide portion. The guide portion is sandwiched between the guide hole and the lower surface of the mounting base, thus ensuring the guiding effect.

[0014] Furthermore, the valve body assembly also includes a limiting structure, which is disposed between the mounting base and the pusher. The limiting structure includes a first stop block and a second stop block that engage in limiting cooperation. The first stop block is disposed on the lower surface of the mounting base, and the second stop block is disposed on the guide portion. The above arrangement makes the overall structure more regular.

[0015] Furthermore, a ring-shaped rib is provided on the side of the push rod seat facing the mounting base. The ring-shaped rib is wrapped around the outer periphery of the second connecting hole and inserted into the first connecting hole. The ring-shaped rib serves to guide the transmission part.

[0016] Furthermore, a boss is provided on the side of the push rod seat facing the mounting base. The boss is located on the outer periphery of the annular rib. The valve body assembly also includes a sealing sleeve. The driven component is inserted into the sealing sleeve, and part of the sealing sleeve structure is located between the boss and the mounting base. The boss can better fix the sealing sleeve, that is, part of the sealing sleeve structure is compressed between the boss and the mounting base, thereby achieving a better sealing effect and preventing fluid from being directly blown onto the drive component.

[0017] Furthermore, the mounting base includes a base body and a mounting portion disposed within the base body, with a portion of the connecting rod structure located within the mounting portion. The mounting portion enables the connecting rod to be positioned, thereby making the position of the connecting rod more stable.

[0018] 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 to avoid the connecting rod, and the reset component is located on the side of the vertical plate away from the valve body. The connecting rod is located within the clearance recess. One end of the reset component engages with the vertical plate, and the other end engages with the connecting rod, thus effectively realizing the reset function of the reset component.

[0019] 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 a vertical plate is connected between the first and second baffles. The fixing cover covers the first and second baffles. The aforementioned fixing cover prevents other substances from entering the mounting section.

[0020] Furthermore, the mounting base is provided with a connection hole, and the valve body is connected to the connection hole, and / or the mounting base is a steam mounting base. The valve body is connected to the connection hole, thereby making the position of the valve body more stable.

[0021] 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 is driven by a pusher, avoiding direct impact of fluid on the drive member, thereby improving the stability of the drive. Therefore, the cover assembly having the valve body assembly also has the aforementioned advantages.

[0022] According to a third aspect of the present invention, a cooking appliance is provided, including a lid assembly, wherein the lid assembly is the lid assembly described above. The lid assembly described above can prevent fluid from directly impacting the drive component, and therefore the cooking appliance having the lid assembly described above also has the aforementioned advantages. Attached Figure Description

[0023] 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:

[0024] Figure 1 A cross-sectional schematic diagram of a valve body assembly according to a first embodiment of the present invention is shown;

[0025] Figure 2 It shows Figure 1 A magnified view of part A of the valve body assembly;

[0026] Figure 3 It shows Figure 1 A cross-sectional schematic diagram of the sealing structure of the valve body assembly blocking the second opening;

[0027] Figure 4 It shows Figure 1 A three-dimensional structural diagram of the mounting base for the valve body assembly;

[0028] Figure 5 It shows Figure 4 A three-dimensional structural diagram of the mounting base from another perspective;

[0029] Figure 6 It shows Figure 1 A three-dimensional structural diagram of the fixing cover of the valve body assembly;

[0030] Figure 7 It shows Figure 1 A three-dimensional structural diagram of the actuator of the valve body assembly;

[0031] Figure 8 It shows Figure 1 A three-dimensional structural diagram of the sealing sleeve of the valve body assembly;

[0032] Figure 9 It shows Figure 1 A three-dimensional structural diagram of the push rod seat of the valve body assembly;

[0033] Figure 10 It shows Figure 9 A three-dimensional structural diagram of the push rod holder from another perspective;

[0034] Figure 11 It shows Figure 1 A three-dimensional structural diagram of the valve body of the valve body assembly;

[0035] Figure 12 It shows Figure 1 A three-dimensional structural diagram of the connecting rod of the valve body assembly;

[0036] Figure 13 A cross-sectional schematic diagram of a second embodiment of the valve body assembly according to the present invention is shown;

[0037] Figure 14 It shows Figure 13 A three-dimensional structural diagram of the mounting base for the valve body assembly;

[0038] Figure 15 It shows Figure 13 A three-dimensional structural diagram of the actuator of the valve body assembly;

[0039] Figure 16 It shows Figure 13 A three-dimensional structural diagram of the push rod seat of the valve body assembly;

[0040] Figure 17 A cross-sectional schematic diagram of a third embodiment of the valve body assembly according to the present invention is shown;

[0041] Figure 18 A cross-sectional schematic diagram of a fourth embodiment of the valve body assembly according to the present invention is shown;

[0042] Figure 19 A cross-sectional schematic diagram of an embodiment of the cover assembly according to the present invention is shown.

[0043] The above figures include the following reference numerals:

[0044] 10. Mounting base; 11. First connecting hole; 12. Base body; 121. Connecting hole; 13. Mounting part; 131. Housing; 1311. First baffle; 1312. Second baffle; 1313. Fixing cover; 132. Vertical plate; 1321. Clearance recess; 20. Valve body; 21. Valve cavity; 22. First opening; 23. Second opening; 30. Sealing structure; 31. Connecting rod; 32. Sealing element; 40. Pushing element; 41. Push top; 42. Transmission part; 43. Guide part; 50. Driving element; 60. Reset element; 70. Limiting structure; 71. First stop block; 72. Second stop block; 80. Push rod seat; 81. Second connecting hole; 82. Guide hole; 83. Annular rib; 84. Boss; 85. Protrusion; 90. Sealing sleeve. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] 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.

[0048] like Figure 1 and Figure 3 as well as Figure 11 and Figure 12 As shown, in Embodiment 1, the valve body assembly includes: a mounting base 10, a valve body 20, a sealing structure 30, a pusher 40, and a resetter 60. The valve body 20 has a valve cavity 21 and a first opening 22 and a second opening 23 communicating with the valve cavity 21. The sealing structure 30 includes a connecting rod 31 and a sealing member 32 disposed on the connecting rod 31. The connecting rod 31 is movably inserted into the second opening 23, and the sealing member 32 is disposed in a one-to-one correspondence with multiple second openings 23. The pusher 40 is movably disposed on the mounting base 10. When the pusher 40 moves, it can push against the connecting rod 31, causing the sealing member 32 to avoid the second opening 23. The resetter 60 is driven to cooperate with the connecting rod 31 and enables the sealing member 32 to remain in the position blocking the second opening 23.

[0049] According to the technical solution of Embodiment 1, the valve body 20 has a valve cavity 21 and a first opening 22 and a second opening 23 communicating with the valve cavity 21. The sealing structure 30 includes a connecting rod 31 and a sealing element 32. The connecting rod 31 is movably inserted into the second opening 23, and the sealing element 32 is correspondingly arranged with the second opening 23. The pushing element 40 is movably arranged on the mounting base 10. The resetting element 60 drives the connecting rod 31 and enables the sealing element 32 to be held in the position of blocking the second opening 23. With the above arrangement, fluid enters the valve cavity 21 from the first opening 22 and flows out from the second opening 23, or fluid enters the valve cavity 21 from the second opening 23 and flows out from the first opening 22. The pushing element 40 can drive the connecting rod 31 to move so that the sealing element 32 avoids the second opening 23. At this time, the second opening 23 is opened, and fluid can flow in or out. The pushing element 40 can increase the distance between the driving element 50 and the second opening 23, thereby avoiding the fluid from affecting the driving element 50, thus making the driving process of the driving element 50 more stable. Therefore, the technical solution of Embodiment 1 effectively solves the problem in the related technology that steam easily rushes towards the solenoid valve during exhaust and affects the stability of the solenoid valve drive sealing structure.

[0050] Specifically, in Embodiment 1, the valve body assembly further includes a drive member 50, which is located on the side of the connecting rod 31 away from the second opening 23, that is, the drive member 50 is located on the side of the valve body 20 and is correspondingly arranged with the second opening 23.

[0051] The pusher 40 is located between the drive member 50 and the connecting rod 31, that is, the pusher 40 is located on the side of the connecting rod 31 away from the second opening 23, that is, the pusher 40 is located on the side of the valve body 20 and is correspondingly arranged with the second opening 23.

[0052] Preferably, the pusher 40 is guided and engaged with the mounting base 10. It should be noted that the aforementioned drive component 50 includes an electric component or a manual operating component. Specifically, the electric component includes a solenoid valve or an electric actuator, etc., and the manual operating component includes a manual push button or a manual knob, etc.

[0053] like Figures 1 to 3 as well as Figure 5 and Figure 7 As shown, in Embodiment 1, the valve body assembly further includes a limiting structure 70, which is disposed between the mounting base 10 and the pusher 40. When the pusher 40 moves in a direction away from the valve body 20, the limiting structure 70 can prevent the pusher 40 from separating from the mounting base 10. The limiting structure 70 makes the position of the pusher 40 more stable, that is, it can prevent the pusher 40 from moving excessively in a direction away from the valve body 20.

[0054] like Figures 1 to 3 as well as Figure 5 and Figure 7 As shown, in Embodiment 1, the limiting structure 70 includes a first stop block 71 and a second stop block 72 that engage in a limiting fit. The first stop block 71 is disposed on the mounting base 10, and the second stop block 72 is disposed on the pusher 40. The first stop block 71 and the second stop block 72 can engage in a stopping fit. The structure of the first stop block 71 and the second stop block 72 is simple, easy to set, and can effectively achieve the stopping fit.

[0055] like Figures 1 to 5 as well as Figure 9 and Figure 10 As shown, in Embodiment 1, the mounting base 10 is provided with a first connecting hole 11. The valve body assembly also includes a push rod seat 80, which is mounted on the mounting base 10 and located on the outside of the mounting base 10. The push rod seat 80 is provided with a second connecting hole 81 corresponding to the first connecting hole 11. The push member 40 is movably disposed within the first connecting hole 11 and the second connecting hole 81, and drives the connecting rod 31 to move. The push member 40 passes through the first connecting hole 11 and the second connecting hole 81, which makes the movement direction of the push member 40 relatively stable, that is, the first connecting hole 11 and the second connecting hole 81 can guide the push member 40.

[0056] It should be noted that the aforementioned push rod seat 80 being mounted on the mounting base 10 and located on the outside of the mounting base 10 means that the push rod seat 80 is located on the side of the mounting base 10 away from the valve body 20.

[0057] like Figures 1 to 3 as well as Figure 5 and Figure 7As shown, in Embodiment 1, the pushing member 40 includes a pushing top 41 and a transmission part 42. The pushing top 41 is located outside the mounting base 10, and the transmission part 42 is movably disposed within the first connecting hole 11 and the second connecting hole 81. The pushing top 41 facilitates driving engagement with the driving member 50, and the transmission part 42 enables driving engagement with the connecting rod 31.

[0058] 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.

[0059] like Figure 9 and Figure 10 As shown, in Embodiment 1, the push rod seat 80 is further provided with a guide hole 82, and the push member 40 also includes a guide portion 43, which is disposed on the push top 41 and inserted into the guide hole 82. The guide portion 43 passes through the guide hole 82, which further restricts the movement direction of the push member 40 and ensures that the push member 40 cooperates with the connecting rod 31, preventing misalignment between the push member 40 and the connecting rod 31.

[0060] like Figure 7 , Figure 9 as well as Figure 10 As shown, in Embodiment 1, the guide hole 82 is a rectangular hole, and the guide 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.

[0061] like Figure 2 As shown, in Embodiment 1, a portion of the guide hole 82 is located below the mounting base 10, and the lower surface of the mounting base 10 and the guide hole 82 together guide the guide portion 43. The guide portion 43 is sandwiched between the guide hole 82 and the lower surface of the mounting base 10, thus ensuring the guiding effect.

[0062] like Figure 2 As shown, in Embodiment 1, the valve body assembly further includes a limiting structure 70, which is disposed between the mounting base 10 and the pusher 40. The limiting structure 70 includes a first stop block 71 and a second stop block 72 that engage in limiting cooperation. The first stop block 71 is disposed on the lower surface of the mounting base 10, and the second stop block 72 is disposed on the guide portion 43. The above-mentioned arrangement makes the overall structure more regular.

[0063] Specifically, the bottom surface of the mounting base 10 is provided with a recess, and the first stop block 71 is formed by the edge of the recess facing the drive member 50, which can effectively reduce the thickness of the valve body assembly.

[0064] The assembly process of the valve body assembly in Example 1 is as follows:

[0065] Insert the transmission part 42 into the second connecting hole 81, insert the guide part 43 into the guide hole 82, install the sealing sleeve 90 on the transmission part 42, and then install the push rod seat 80 on the mounting seat 10. At this time, the first stop block 71 is located between the second stop block 72 and the drive member 50.

[0066] like Figure 2 As shown, in Embodiment 1, the first stop block 71 extends downward and the second stop block 72 extends upward. This arrangement ensures that the first stop block 71 and the second stop block 72 achieve a stopping engagement.

[0067] Of course, in the embodiment not shown in the figure, the first stop block 71 has a notch in the middle and the second stop block 72 extends to both sides in the horizontal direction. After the pusher 40 is installed, the first stop block 71 and the second stop block 72 can also stop each other.

[0068] like Figure 9 and Figure 10 As shown, in Embodiment 1, the push rod seat 80 has an annular rib 83 on the side facing the mounting base 10. The annular rib 83 is wrapped around the outer periphery of the second connecting hole 81 and inserted into the first connecting hole 11. The annular rib 83 can guide the transmission part 42.

[0069] like Figures 8 to 10 As shown in Embodiment 1, the push rod seat 80 is further provided with a boss 84 on the side facing the mounting base 10. The boss 84 is located on the outer periphery of the annular rib 83. The valve body assembly also includes a sealing sleeve 90. The push member 40 is inserted into the sealing sleeve 90, and part of the structure of the sealing sleeve 90 is located between the boss 84 and the mounting base 10. The boss 84 can better fix the sealing sleeve 90, that is, part of the structure of the sealing sleeve 90 is pressed between the boss 84 and the mounting base 10, thereby achieving a better sealing effect and preventing fluid from being directly blown towards the drive member 50.

[0070] like Figure 9 and Figure 10 As shown, in Embodiment 1, the push rod seat 80 is further provided with a protrusion 85, which is disposed on the outer periphery of the guide hole 82. This arrangement allows for a longer guide hole 82, thereby improving the guiding effect.

[0071] like Figure 4 and Figure 5 As shown, in Embodiment 1, the mounting base 10 includes a base body 12 and a mounting portion 13 disposed within the base body 12, with a portion of the connecting rod 31 located within the mounting portion 13. The mounting portion 13 can position the connecting rod 31 and make the position of the connecting rod 31 more stable.

[0072] like Figures 4 to 6As shown, in Embodiment 1, the mounting part 13 includes a housing 131 and a vertical plate 132 disposed within the housing 131. A portion of the connecting rod 31 is located within the housing 131. The vertical plate 132 has a clearance recess 1321 to avoid the connecting rod 31. The reset member 60 is disposed on the side of the vertical plate 132 away from the valve body 20. The connecting rod 31 is located within the clearance recess 1321. One end of the reset member 60 engages with the vertical plate 132, and the other end engages with the connecting rod 31, thus effectively realizing the reset function of the reset member 60.

[0073] Specifically, the end of the connecting rod 31 away from the valve cavity 21 is provided with a stop flange, and the reset member 60 is provided between the stop flange and the upright plate 132.

[0074] like Figures 4 to 6 As shown, in Embodiment 1, the housing 131 includes a first baffle 1311, a second baffle 1312, and a fixing cover 1313. The first baffle 1311 and the second baffle 1312 are spaced apart on the base body 12, and the upright plate 132 is connected between the first baffle 1311 and the second baffle 1312. The fixing cover 1313 covers the first baffle 1311 and the second baffle 1312. The fixing cover 1313 prevents other substances from entering the mounting part 13.

[0075] like Figures 4 to 6 As shown, in Embodiment 1, the first baffle 1311 and the second baffle 1312 are respectively provided with conductive portions. The aforementioned conductive portions can guide the flow, that is, the fluid can be discharged through the conductive portions.

[0076] like Figures 4 to 6 As shown, in Embodiment 1, the seat body 12 is provided with a connection hole 121, and the valve body 20 is connected in the connection hole 121, thereby making the position of the valve body 20 more stable.

[0077] In Embodiment 1, the mounting base 10 is a steam seat. Specifically, the steam seat includes a bottom wall and a surrounding wall, with the surrounding wall disposed on the bottom wall and the valve body 20 passing through the bottom wall. When food residue carried out from the steam enters the steam seat, it makes the food residue inside the steam seat easier to clean.

[0078] A steam cover can also be installed on the steam seat to provide protection.

[0079] Specifically, in Embodiment 1, there are two second openings 23 and two sealing elements 32. The two sealing elements 32 and the two second openings 23 are arranged in a one-to-one correspondence. The two sealing elements 32 include an inner sealing element and an outer sealing element. The inner sealing element is disposed inside the valve cavity 21 and seals with the inner side of one second opening 23. The outer sealing element is disposed outside the valve cavity 21 and seals with the outer side of the other second opening 23. The area of ​​the second opening 23 corresponding to the inner sealing element is the first area S1, and the area of ​​the second opening 23 corresponding to the outer sealing element is the second area S2. The first area S1 and the second area S2 satisfy the condition: S1 > S2.

[0080] The fluid in the valve chamber 21 applies force to both the inner and outer seals simultaneously. When the seal blocks the second opening 23, 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 applied by the fluid to the inner seal is greater than the force applied by the fluid to the outer seal. As a result, under the force on the inner seal, the connecting rod 31 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 31, and the inner and outer seals can move synchronously, when the seal 32 moves from blocking the second opening 23 to opening the second opening 23, the fluid can flow out from the gap between the outer seal and the corresponding second opening 23. At the same time, there is also a gap between the inner seal and the corresponding second opening 23, through which the fluid can flow out. When the seal continues to move, the resistance encountered by the seal 32 is small, that is, the movement of the sealing structure 30 is relatively easy.

[0081] When all seals 32 open the second opening 23, the distance between the inner seal and the corresponding second opening 23 is a first distance a1, and the distance between the outer seal and the corresponding second opening 23 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 23, and then the outer seal can seal the corresponding second opening 23. When the outer seal seals the corresponding second opening 23, 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.

[0082] The difference between Embodiment 2 and Embodiment 1 is that: in Embodiment 2, the mounting base 10 does not have a mounting part, but the reset component 60 is fixed by a fixing cylinder and connecting rod 31 set on the valve body 20, while the sealing sleeve 90 is fitted on the transmission part 42 of part of the push component.

[0083] Specifically, such as Figures 13 to 16 As shown, in Embodiment 2, the valve body assembly also includes a fixing cylinder, which is installed inside the second opening 23. An inner protrusion is provided inside the fixing cylinder, and a stop protrusion is provided at the end of the connecting rod 31 facing the driving member 50. The reset member 60 is disposed between the stop protrusion and the inner protrusion.

[0084] The transmission part is provided with an annular groove, the first end of the sealing sleeve 90 is fixed in the annular groove, and the second end of the sealing sleeve is fixed between the drive unit and the push rod seat.

[0085] The difference between Example 3 and Example 2 is that the pusher and the connecting rod are provided with a magnetic structure.

[0086] Specifically, such as Figure 17 As shown, in Embodiment 3, the transmission part faces the first magnetic element on the side of the connecting rod, and the first magnetic element can cooperate with the push rod.

[0087] 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.

[0088] Specifically, such as Figure 18 As shown, in Embodiment 4, the first magnetic component and the second magnetic component can magnetically attract each other.

[0089] According to a second aspect of this application, a cover assembly is provided. The cover assembly of this embodiment includes a valve body assembly, which is the valve body assembly described above. The valve body assembly is driven by a pusher, avoiding direct fluid impact on the drive component, thereby improving the stability of the drive. Therefore, the cover assembly having the valve body assembly also has the aforementioned advantages.

[0090] like Figure 19 As shown, in this embodiment, the cover assembly includes a top cover, an inner liner, and a pressure-bearing cover. The pressure-bearing cover is rotatably disposed below the inner liner, and the top cover is mounted above the inner liner. The pressure-bearing cover has cover teeth that mate with the pot teeth of the pot body. The mounting base 10 is disposed on the inner liner, and the valve body 20 passes through the pressure-bearing cover and can rotate synchronously with the pressure-bearing cover.

[0091] Specifically, in this embodiment, the lid assembly is a pressure cooker lid. According to a third aspect of this application, a cooking appliance is provided, including a lid assembly, which is the lid assembly described above. The lid assembly described above can prevent fluid from directly impacting the drive component; therefore, the cooking appliance having the lid assembly described above also has the aforementioned advantages.

[0092] The cooking appliance in this embodiment includes an electric pressure cooker or a rice cooker.

[0093] 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.

[0094] 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.

[0095] 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.

[0096] 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: Mounting base (10); The valve body (20) has a valve cavity (21) and a first opening (22) and a second opening (23) communicating with the valve cavity (21); The sealing structure (30) includes a connecting rod (31) and a sealing element (32) disposed on the connecting rod (31). The connecting rod (31) is movably inserted into the second opening (23), and the sealing element (32) is disposed in a one-to-one correspondence with a plurality of second openings (23). A pusher (40) is movably disposed on the mounting base (10). When the pusher (40) moves, it can push against the connecting rod (31) so that the seal (32) avoids the second opening (23). The reset member (60) engages with the connecting rod (31) and enables the seal (32) to remain in the position that blocks the second opening (23).

2. The valve body assembly according to claim 1, characterized in that, The valve body assembly further includes a limiting structure (70) disposed between the mounting base (10) and the pusher (40). When the pusher (40) moves in a direction away from the valve body (20), the limiting structure (70) can prevent the pusher (40) from separating from the mounting base (10).

3. The valve body assembly according to claim 2, characterized in that, The limiting structure (70) includes a first stop block (71) and a second stop block (72) that limit the engagement. The first stop block (71) is disposed on the mounting base (10), and the second stop block (72) is disposed on the pusher (40). The first stop block (71) and the second stop block (72) can engage in a stopping engagement.

4. The valve body assembly according to claim 1, characterized in that, The mounting base (10) is provided with a first connecting hole (11). The valve body assembly also includes a push rod seat (80). The push rod seat (80) is mounted on the mounting base (10) and located on the outside of the mounting base (10). The push rod seat (80) is provided with a second connecting hole (81) corresponding to the first connecting hole (11). The push member (40) is movably disposed in the first connecting hole (11) and the second connecting hole (81) and drives the connecting rod (31) to move.

5. The valve body assembly according to claim 4, characterized in that, The pusher (40) includes a pusher (41) and a transmission part (42). The pusher (41) is located outside the mounting base (10), and the transmission part (42) is movably disposed in the first connecting hole (11) and the second connecting hole (81).

6. The valve body assembly according to claim 5, characterized in that, The push rod seat (80) is also provided with a guide hole (82), and the push member (40) also includes a guide part (43), which is disposed on the push top (41) and inserted into the guide hole (82).

7. The valve body assembly according to claim 6, characterized in that, The guide hole (82) is a rectangular hole, and the guide part (43) is a guide plate.

8. The valve body assembly according to claim 6, characterized in that, A portion of the guide hole (82) is located below the mounting base (10), and the lower surface of the mounting base (10) and the guide hole (82) together guide the guide portion (43).

9. The valve body assembly according to claim 6, characterized in that, The valve body assembly further includes a limiting structure (70) disposed between the mounting base (10) and the pusher (40). The limiting structure (70) includes a first stop block (71) and a second stop block (72) for limiting cooperation. The first stop block (71) is disposed on the lower surface of the mounting base (10), and the second stop block (72) is disposed on the guide portion (43).

10. The valve body assembly according to claim 6, characterized in that, The push rod seat (80) is provided with an annular rib (83) on the side facing the mounting seat (10). The annular rib (83) is wrapped around the outer periphery of the second connecting hole (81) and inserted into the first connecting hole (11).

11. The valve body assembly according to claim 10, characterized in that, The push rod seat (80) is provided with a boss (84) on the side facing the mounting seat (10). The boss (84) is located on the outer periphery of the annular rib (83). The valve body assembly also includes a sealing sleeve (90). The push member (40) is inserted into the sealing sleeve (90). Part of the structure of the sealing sleeve (90) is located between the boss (84) and the mounting seat (10).

12. The valve body assembly according to claim 1, characterized in that, The mounting base (10) includes a base body (12) and a mounting part (13) disposed within the base body (12), and a portion of the structure of the connecting rod (31) is located within the mounting part (13).

13. The valve body assembly according to claim 12, characterized in that, The mounting part (13) includes a housing (131) and a vertical plate (132) disposed in the housing (131). Part of the structure of the connecting rod (31) is located in the housing (131). The vertical plate (132) is provided with a relief recess (1321) to avoid the connecting rod (31). The reset member (60) is disposed on the side of the vertical plate (132) away from the valve body (20).

14. The valve body assembly according to claim 13, characterized in that, The housing (131) includes a first baffle (1311), a second baffle (1312), and a fixing cover (1313). The first baffle (1311) and the second baffle (1312) are spaced apart on the seat body (12). The upright plate (132) is connected between the first baffle (1311) and the second baffle (1312). The fixing cover (1313) is placed on the first baffle (1311) and the second baffle (1312).

15. The valve body assembly according to claim 12, characterized in that, The seat body (12) is provided with a connection hole (121), the valve body (20) is connected in the connection hole (121), and / or the mounting seat (10) is a steam seat.

16. 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 15.

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

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