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 valve main body which is provided with a first channel and a second channel which penetrate through the valve wall of the valve main body; the sealing structure comprises a lever piece, an inner sealing piece and an outer sealing piece, the inner sealing piece and the outer sealing piece are arranged on the lever piece, the middle of the lever piece is hinged to the valve body, and the inner sealing piece and the outer sealing piece are located on the two sides of a hinged shaft of the lever piece respectively; wherein the inner sealing piece is in sealing fit with the inlet end of the first channel, the outer sealing piece is in sealing fit with the outlet end of the second channel, the lever piece can drive the inner sealing piece to move so as to block or open the first channel, and the lever piece can drive the outer sealing piece to move so as to block or open the second channel. By means of the technical scheme, the problem that in the related technology, when a valve is adjusted, large resistance needs to be overcome, and consequently the adjusting difficulty of the valve is large can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of small household appliances, in particular to a valve body assembly, a cover body assembly and a cooking appliance. BACKGROUND

[0002] A valve is a structure for controlling the flow direction, and the valve has multiple openings and can be set as multiple-in and one-out or multiple-out and one-in, thereby being able to meet different use requirements. Specifically, the flow direction of the valve is adjusted by adjusting the valve core.

[0003] In the related art, a large force needs to be overcome when the valve is adjusted, that is, a large force needs to be used when the valve is adjusted, thereby making the adjustment of the valve difficult. SUMMARY

[0004] The present application provides a valve body assembly, a cover body assembly and a cooking appliance to solve the problem that a large resistance needs to be overcome when the valve is adjusted in the related art, thereby making the adjustment of the valve difficult.

[0005] According to one aspect of the present application, a valve body assembly is provided, which comprises: a valve main body having a first channel and a second channel penetrating through a valve wall thereof; a sealing structure comprising a lever member and an inner sealing member and an outer sealing member arranged on the lever member, a middle part of the lever member being hinged to the valve main body, and the inner sealing member and the outer sealing member being respectively located on two sides of a hinged shaft of the lever member; wherein the inner sealing member is in sealing cooperation with an inlet end of the first channel, the outer sealing member is in sealing cooperation with an outlet end of the second channel, the lever member can drive the inner sealing member to move to block or open the first channel, and the lever member can drive the outer sealing member to move to block or open the second channel.

[0006] By applying the technical solution of the present application, the valve body assembly comprises the valve main body and the sealing structure, and the swing lever member can simultaneously drive the inner sealing member and the outer sealing member to move to block or open the first channel and the second channel. Specifically, since the inner sealing member is in sealing cooperation with the inlet end of the first channel and the outer sealing member is in sealing cooperation with the outlet end of the second channel, when there is pressure in the valve body assembly, the pressure in the valve body assembly will respectively extrude the inner sealing member and the outer sealing member, but the extrusion forces borne by the inner sealing member and the outer sealing member are in opposite directions, and the extrusion forces borne by the inner sealing member and the outer sealing member can offset each other, thereby reducing the resistance when the lever member drives the inner sealing member and the outer sealing member to move, so as to reduce the opening resistance of the valve body assembly and the closing resistance of the valve body assembly. Therefore, the technical solution of the present embodiment effectively solves the problem that a large resistance needs to be overcome when the valve is adjusted in the related art, thereby making the adjustment of the valve difficult.

[0007] Further, the lever member comprises a connecting rod, a first top rod and a second top rod, the middle part of the connecting rod is hingedly connected with the valve body, one end of the first top rod and one end of the second top rod are respectively hingedly connected with the connecting rod, the inner sealing member is arranged on the first top rod, and the outer sealing member is arranged on the second top rod. Since one end of the first top rod and one end of the second top rod are respectively hingedly connected with the connecting rod, when the lever member is swung to drive the inner sealing member and the outer sealing member to move, the first top rod and the second top rod are swung relative to the lever member, so that the first top rod is coaxially arranged with the first channel, and the second top rod is arranged with the second channel, thereby facilitating the inner sealing member to be smoothly sealed in the first channel and the outer sealing member to be smoothly sealed in the second channel, and improving the sealing effect of the inner sealing member on the first channel and the sealing effect of the outer sealing member on the second channel.

[0008] Further, the first top rod comprises a first hinged segment, a penetrating segment and a first sealing segment which are sequentially connected, the first hinged segment is hingedly connected with the connecting rod, the penetrating segment penetrates the first channel, and the inner sealing member is arranged on the first sealing segment. When the lever member drives the inner sealing member to seal the first channel, the penetrating segment penetrates the first channel and forms a guide cooperation with the first channel, so that the inner sealing member is smoothly sealed in the first channel, and the sealing effect of the inner sealing member on the first channel is improved.

[0009] Further, the second top rod comprises a second hinged segment, a second sealing segment and a guide segment which are sequentially connected, the second hinged segment is hingedly connected with the connecting rod, the outer sealing member is arranged on the second sealing segment, and the guide segment penetrates the second channel and forms a guide cooperation with the second channel. When the lever member drives the outer sealing member to seal the second channel, the guide segment penetrates the first channel and forms a guide cooperation with the second channel, so that the outer sealing member is smoothly sealed in the second channel, and the sealing effect of the outer sealing member on the second channel is improved.

[0010] Further, the valve body assembly further comprises a driving member, the driving member can drive the connecting rod to rotate to open the first channel and the second channel. By adopting the above structure, the automation degree of the valve body assembly can be improved, and manual operation can be saved.

[0011] Further, the driving member has a pushing part, the connecting rod has an inclined pushing rod segment, the pushing rod segment is located on the side of the second top rod away from the first top rod, the pushing part is in abutting cooperation with the side wall of the valve body facing the pushing rod segment, and the pushing direction of the pushing part is arranged at an angle with the pushing rod segment, so as to facilitate the pushing part to push the connecting rod to swing; and / or the valve body assembly further comprises a resetting member, the resetting member is connected with the connecting rod to apply a resetting force to the connecting rod to seal the first channel and the second channel. The resetting member can drive the inner sealing member to seal the first channel and the outer sealing member to seal the second channel without external force.

[0012] Further, the valve body is in a flat plate structure. The overall thickness of the valve body is reduced, and the overall structure of the valve body is simplified.

[0013] Furthermore, the outlet end of the first channel is surrounded by a first annular rib. On one hand, the first annular rib structurally strengthens the outlet end of the first channel; on the other hand, when the lever drives the inner seal to block the first channel, the first annular rib can also form a guiding engagement with the through section, ensuring the inner seal smoothly blocks the first channel and improving the sealing effect of the inner seal. And / or, the inlet end of the second channel is surrounded by a second annular rib. On one hand, the second annular rib structurally strengthens the inlet end of the second channel; on the other hand, when the lever drives the outer seal to block the second channel, the second annular rib can also form a guiding engagement with the guide section, ensuring the outer seal smoothly blocks the second channel and improving the sealing effect of the outer seal.

[0014] Furthermore, the valve body has a valve cavity and an air inlet connected to the valve cavity. The second channel is connected to the valve cavity, and the axis of the first channel and the axis of the second channel are set at an angle, making the position of the first channel and the second channel more reasonable.

[0015] According to another aspect of the present invention, a cover assembly is provided, comprising: a cover body; and a valve body assembly disposed on the cover body, wherein the valve body assembly is the valve body assembly provided above. A swing lever is provided, capable of simultaneously driving the inner and outer seals to move, thereby blocking or opening a first channel and a second channel. Specifically, since the inner seal is sealed to the inlet end of the first channel and the outer seal is sealed to the outlet end of the second channel, when there is pressure within the valve body assembly, the pressure within the valve body assembly will respectively compress the inner and outer seals. However, the compressive forces on the inner and outer seals are in opposite directions, and the compressive forces on the inner and outer seals can cancel each other out, reducing the resistance when the lever drives the inner and outer seals to move, thereby reducing the valve opening resistance and valve closing resistance of the valve body assembly. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies where valve adjustment requires overcoming significant resistance, leading to greater difficulty in valve adjustment.

[0016] Furthermore, the cover body and the valve body of the valve body assembly are integrally molded. This integral molding structure simplifies the molding process of the cover body assembly; and / or, the cover body assembly also includes a pressure relief valve, which is disposed on the valve body. The pressure relief valve can relieve pressure, thereby protecting the valve body assembly and preventing damage to it.

[0017] According to another aspect of the invention, a cooking appliance is provided, including a lid assembly, which is the lid assembly provided above. The lid assembly described above can increase the single discharge volume, and the valve assembly is easier and less labor-intensive to drive. Therefore, the cooking appliance having the lid assembly described above also has the aforementioned advantages. Attached Figure Description

[0018] 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:

[0019] Figure 1 A cross-sectional view of a cover assembly provided according to Embodiment 1 of the present invention is shown;

[0020] Figure 2 A cross-sectional view of a valve body assembly provided according to Embodiment 1 of the present invention, wherein an inner seal blocks a first channel and an outer seal blocks a second channel, is shown.

[0021] Figure 3 A cross-sectional view of a valve body assembly provided according to Embodiment 1 of the present invention is shown, in which the inner seal opens a first channel and the outer seal opens a second channel.

[0022] Figure 4 A schematic diagram of the connecting rod of the valve body assembly provided according to Embodiment 1 of the present invention is shown;

[0023] Figure 5 A cross-sectional view of a valve body assembly provided according to Embodiment 2 of the present invention, wherein an inner seal blocks a first channel and an outer seal blocks a second channel, is shown.

[0024] Figure 6 A cross-sectional view of a valve body assembly provided according to Embodiment 2 of the present invention is shown, in which the inner seal opens the first channel and the outer seal opens the second channel.

[0025] Figure 7 A schematic diagram of the connecting rod seat of the valve body assembly provided according to an embodiment of the present invention is shown;

[0026] Figure 8 A schematic diagram of the structure of the first push rod of the valve body assembly provided according to an embodiment of the present invention is shown;

[0027] Figure 9 A schematic diagram of the structure of the second push rod of the valve body assembly provided according to an embodiment of the present invention is shown;

[0028] Figure 10 A schematic diagram of the structure of the drive component of the valve body assembly provided according to an embodiment of the present invention is shown;

[0029] Figure 11 A schematic diagram of the cover body and valve body of the cover assembly provided according to Embodiment 1 of the present invention is shown;

[0030] Figure 12 A partial cross-sectional view of the cover body and valve body of the cover assembly provided according to Embodiment 1 of the present invention is shown.

[0031] The above figures include the following reference numerals:

[0032] 10. Valve body; 11. First channel; 12. Second channel; 13. First annular rib; 14. Second annular rib; 15. Valve cavity; 16. Air inlet;

[0033] 20. Sealing structure; 21. Lever; 211. Connecting rod; 2111. Push rod section; 2112. Transmission rod; 212. First push rod; 2121. First hinge section; 21211. Second lug; 21212. Second shaft hole; 2122. Through section; 2123. First sealing section; 213. Second push rod; 2131. Second hinge section; 21311. Third lug; 21312. Third shaft hole; 2132. Second sealing section; 2133. Guide section; 214. Valve body hinge part; 215. First mounting part; 216. Second mounting part; 22. Inner seal; 23. Outer seal; 24. Connecting rod seat; 241. Valve body connecting hole; 242. First lug; 2421. First shaft hole;

[0034] 30. Driving component; 31. Pushing part; 311. Guide slope;

[0035] 40. Reset component;

[0036] 50. Exhaust pipe; 60. Pressure relief valve;

[0037] 71. Cover body; 72. Valve body assembly. Detailed Implementation

[0038] 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.

[0039] like Figures 1 to 12As shown, this embodiment of the invention provides a valve body assembly, which includes a valve body 10 and a sealing structure 20. The valve body 10 has a first channel 11 and a second channel 12 that penetrate its valve wall. The sealing structure 20 includes a lever 21 and an inner seal 22 and an outer seal 23 disposed on the lever 21. The middle part of the lever 21 is hinged to the valve body 10. The inner seal 22 and the outer seal 23 are respectively located on both sides of the hinge axis of the lever 21. The inner seal 22 is sealed to the inlet end of the first channel 11, and the outer seal 23 is sealed to the outlet end of the second channel 12. The lever 21 can drive the inner seal 22 to move to block or open the first channel 11, and the lever 21 can drive the outer seal 23 to move to block or open the second channel 12.

[0040] The valve body assembly provided in this embodiment includes a valve body 10, a sealing structure 20, and a swing lever 21. This assembly can simultaneously drive the inner seal 22 and the outer seal 23 to block or open the first channel 11 and the second channel 12. Specifically, since the inner seal 22 is sealed to the inlet end of the first channel 11, and the outer seal 23 is sealed to the outlet end of the second channel 12, when there is pressure inside the valve body assembly, the pressure will squeeze the inner seal 22 and the outer seal 23 respectively. However, the squeezing forces on the inner seal 22 and the outer seal 23 are in opposite directions, and the squeezing forces on the inner seal 22 and the outer seal 23 can cancel each other out. This reduces the resistance when the lever 21 drives the inner seal 22 and the outer seal 23 to move, thereby reducing the valve opening resistance and valve closing resistance of the valve body assembly. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies where valve adjustment requires overcoming significant resistance, leading to greater difficulty in valve adjustment.

[0041] It should be noted that the valve wall of the valve body 10 includes the inner wall and the outer wall of the valve body 10, and the middle part of the lever 21 refers to the part of the lever 21 other than the two ends.

[0042] like Figures 1 to 6As shown, the lever 21 includes a connecting rod 211, a first push rod 212 and a second push rod 213. The middle part of the connecting rod 211 is hinged to the valve body 10. One end of the first push rod 212 and one end of the second push rod 213 are respectively hinged to the connecting rod 211. The inner seal 22 is disposed on the first push rod 212 and the outer seal 23 is disposed on the second push rod 213. Since one end of the first push rod 212 and one end of the second push rod 213 are respectively hinged to the connecting rod 211, when the swing lever 21 drives the inner seal 22 and the outer seal 23 to move, both the first push rod 212 and the second push rod 213 swing relative to the lever 21, so that the first push rod 212 is coaxially arranged with the first channel 11 and the second push rod 213 is arranged with the second channel 12, so that the inner seal 22 can smoothly seal the first channel 11 and the outer seal 23 can smoothly seal the second channel 12, thereby improving the sealing effect of the inner seal 22 on the first channel 11 and the sealing effect of the outer seal 23 on the second channel 12.

[0043] It should be noted that the middle part of the connecting rod 211 refers to the part of the connecting rod 211 excluding the two ends.

[0044] like Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 8 As shown, the first push rod 212 includes a first hinged section 2121, a through section 2122, and a first sealing section 2123 connected in sequence. The first hinged section 2121 is hinged to the connecting rod 211. The through section 2122 passes through the first channel 11, and the inner seal 22 is disposed on the first sealing section 2123. When the lever 21 drives the inner seal 22 to block the first channel 11, the through section 2122 passes through the first channel 11 and forms a guiding fit with the first channel 11, so that the inner seal 22 smoothly blocks the first channel 11, improving the sealing effect of the inner seal 22 on the first channel 11.

[0045] Specifically, the first hinge section 2121 has two oppositely arranged second lugs 21211, each of which is provided with a second shaft hole 21212. Both sides of the connecting rod 211 are provided with inner rotating posts, and the two inner rotating posts are rotatably inserted through the two second shaft holes 21212 respectively. The first mounting part 215 is a first annular mounting groove provided on the outer side wall of the first sealing section 2123.

[0046] like Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 9As shown, the second push rod 213 includes a second hinge section 2131, a second sealing section 2132, and a guide section 2133 connected in sequence. The second hinge section 2131 is hinged to the connecting rod 211. The outer seal 23 is disposed on the second sealing section 2132, and the guide section 2133 passes through the second channel 12 and guides and cooperates with the second channel 12. When the lever 21 drives the outer seal 23 to block the second channel 12, the guide section 2133 passes through the first channel 11 and forms a guiding cooperation with the second channel 12, so that the outer seal 23 smoothly blocks the second channel 12, improving the sealing effect of the outer seal 23 on the second channel 12.

[0047] Specifically, the second hinge section 2131 has two oppositely arranged third lugs 21311, each of which is provided with a third shaft hole 21312. Both sides of the connecting rod 211 are provided with outer rotating posts, and the two outer rotating posts are rotatably inserted through the two third shaft holes 21312 respectively. The second mounting part 216 is a second annular mounting groove provided on the outer side wall of the second sealing section 2132.

[0048] like Figures 1 to 3 , Figure 5 , Figure 6 as well as Figure 10 As shown, the valve body assembly also includes a drive unit 30, which can drive the connecting rod 211 to rotate, thereby opening the first channel 11 and the second channel 12. This structure improves the automation level of the valve body assembly and saves on manual operation.

[0049] In this embodiment, the driving component 30 is a solenoid valve, which can push the connecting rod 211. That is, the driving component 30 is not directly connected to the connecting rod 211.

[0050] Of course, in the embodiment not shown in the figure, the drive member 30 is connected to the connecting rod 211, so that the drive member 30 can drive the connecting rod 211 to swing when it extends or retracts.

[0051] The driving component 30, which can drive the connecting rod 211 to rotate, includes the following two structures:

[0052] (1) The driving component 30 is directly driven by the connecting rod 211;

[0053] (2) The driving component 30 is indirectly driven by the connecting rod 211 through the first transmission component.

[0054] like Figures 2 to 4As shown, the drive member 30 has a pushing part 31. In Embodiment 1, the connecting rod 211 has an inclined pushing rod section 2111. The pushing rod section 2111 is located on the side of the second push rod 213 away from the first push rod 212. The pushing part 31 abuts against the side wall of the pushing rod section 2111 facing the valve body 10. The pushing direction of the pushing part 31 is set at an angle to the pushing rod section 2111 to facilitate the pushing part 31 pushing the connecting rod 211 to swing.

[0055] like Figures 1 to 3 , Figure 5 as well as Figure 6 As shown, the valve body assembly also includes a reset member 40, which is connected to the connecting rod 211 to apply a reset force to the connecting rod 211 to block the first channel 11 and the second channel 12. The reset member 40 is configured to drive the inner seal 22 to block the first channel 11 and the outer seal 23 to block the second channel 12 when the sealing structure 20 is not subjected to external force.

[0056] It should be noted that the driving direction of the driving component 30 and the reset component 40 is opposite.

[0057] The connection between the reset member 40 and the connecting rod 211 includes the following two structures:

[0058] (1) The reset component 40 is directly connected to the connecting rod 211;

[0059] (2) The reset component 40 is indirectly connected to the connecting rod 211 through the second transmission component.

[0060] like Figure 5 and Figure 6 As shown, in Embodiment 2, a transmission rod 2112 is provided in the middle of the connecting rod 211. The driving member 30 is driven to connect with the transmission rod 2112. The driving member 30 drives the connecting rod 211 to rotate through the transmission rod 2112 to open the first channel 11 and the second channel 12, increase the lever arm, and thus make it easier to drive the connecting rod 211 to swing.

[0061] In this embodiment, when the inner seal 22 blocks the first channel 11 and the outer seal 23 blocks the second channel 12, the included angle between the first push rod 212 and the connecting rod 211 is equal to the included angle between the second push rod 213 and the connecting rod 211. With this structure, when the inner seal 22 blocks the first channel 11 and the outer seal 23 blocks the second channel 12, the sealing effect of the inner seal 22 on the first channel 11 is similar to the sealing effect of the outer seal 23 on the second channel 12, thereby improving the sealing effect of both the inner seal 22 and the outer seal 23 on the second channel 12.

[0062] In this embodiment, the distance between the hinge axis of the connecting rod 211 and the valve body 10 and the first push rod 212 is the first distance, and the distance between the hinge axis of the connecting rod 211 and the valve body 10 and the second push rod 213 is the second distance. The first distance is equal to the second distance. With the above structure, when the inner seal 22 blocks the first channel 11 and the outer seal 23 blocks the second channel 12, the sealing effect of the inner seal 22 on the first channel 11 is similar to the sealing effect of the outer seal 23 on the second channel 12, thereby improving the sealing effect of the inner seal 22 on the first channel 11 and the sealing effect of the outer seal 23 on the second channel 12.

[0063] like Figure 2 , Figure 3 as well as Figure 12 As shown, the outlet end of the first channel 11 is surrounded by a first annular rib 13. On the one hand, the first annular rib 13 strengthens the structure of the outlet end of the first channel 11. On the other hand, when the lever 21 drives the inner sealing member 22 to block the first channel 11, the first annular rib 13 can also form a guiding fit with the through section 2122 so that the inner sealing member 22 can be smoothly blocked in the first channel 11, thereby improving the sealing effect of the inner sealing member 22 on the first channel 11.

[0064] like Figure 2 , Figure 3 as well as Figure 12 As shown, the inlet end of the second channel 12 is surrounded by a second annular rib 14. On the one hand, the second annular rib 14 strengthens the structure of the inlet end of the second channel 12. On the other hand, when the lever 21 drives the outer seal 23 to block the second channel 12, the second annular rib 14 can also form a guiding fit with the guide section 2133 so that the outer seal 23 can be smoothly blocked in the second channel 12, thereby improving the sealing effect of the outer seal 23 on the second channel 12.

[0065] It should be noted that the cross-sectional area S1 of the first channel 11 is greater than or equal to the cross-sectional area S2 of the second channel 12. When there is pressure inside the valve body assembly, the pressure on the inner seal 22 is greater than the pressure on the outer seal 23, which in turn makes the sealing structure 20 have a better sealing effect.

[0066] Among them, the cross-sectional area S1 of the first channel 11 and the cross-sectional area S2 of the second channel 12 are both greater than 3.14 mm. 2 And S1-S2 < 50.24 mm 2 .

[0067] Specifically, in this embodiment, the cross-sectional area S1 of the first channel 11 is equal to the cross-sectional area S2 of the second channel 12.

[0068] Furthermore, in this embodiment, when the inner seal 22 opens the first channel 11 and the outer seal 23 opens the second channel 12, the distance between the inner seal 22 and the inlet end of the first channel 11 is less than the distance between the outer seal 23 and the outlet end of the second channel 12. Through this arrangement, during the process of the lever 21 driving the inner seal 22 and the outer seal 23 to move and block the first channel 11 and the second channel 12, the inner seal 22 first blocks the inlet end of the first channel 11, and the outer seal 23 then blocks the outlet end of the second channel 12. When the outer seal 23 blocks the outlet end of the second channel 12, the inner seal 22 is compressed and deformed. During the process of the lever 21 driving the inner seal 22 and the outer seal 23 to move and open the first channel 11 and the second channel 12, the elastic restoring force of the inner seal 22 can save the driving torque of the lever 21.

[0069] It should be noted that during the process of lever 21 driving inner seal 22 and outer seal 23 to move to open first channel 11 and second channel 12, outer seal 23 first opens the outlet end of second channel 12, allowing fluid to flow out through the gap between outer seal 23 and the outlet end of second channel 12. Inner seal 22 then opens the inlet end of first channel 11. This reduces the fluid resistance that inner seal 22 needs to overcome when moving inner seal 22, thus making the movement of sealing structure 20 less strenuous.

[0070] like Figure 1 and Figure 7 As shown, the lever structure also includes a connecting rod seat 24, which has a valve body connecting hole 241 and two opposing first lugs 242. Each of the two first lugs 242 is provided with a first shaft hole 2421. The valve body hinge part 214 is a pivot post provided on both sides of the connecting rod 211, and the two pivot posts are rotatably inserted through the two first shaft holes 2421 respectively.

[0071] like Figures 1 to 3 , Figure 11 as well as Figure 12 As shown, the connecting rod 211 has a plate-like structure.

[0072] It should be noted that the structure of the valve body 10 includes the following two embodiments. In the first embodiment, the valve body 10 is a flat plate structure. In the second embodiment, the valve body 10 has a valve cavity 15 and an air inlet 16 connected to the valve cavity 15. The second channel 12 is connected to the valve cavity 15, and the axis of the first channel 11 is set at an angle to the axis of the second channel 12.

[0073] In Example 1, as Figures 1 to 3As shown, the valve body 10 has a flat plate structure, which reduces the overall thickness of the valve body 10 and simplifies its overall structure. Specifically, the first channel 11 and the second channel 12 penetrate the valve body 10 along the thickness direction of the flat plate structure.

[0074] In Example 2, as Figure 5 and Figure 6 As shown, the valve body 10 has a valve cavity 15 and an air inlet 16 connected to the valve cavity 15. The second channel 12 is connected to the valve cavity 15. The axis of the first channel 11 and the axis of the second channel 12 are set at an angle, so that the positions of the first channel 11 and the second channel 12 are set more reasonably.

[0075] In this embodiment, the driving member 30 pushes the connecting rod 211, causing the connecting rod 211 to swing, thereby driving the inner seal 22 to open the first channel 11 and the outer seal 23 to open the second channel 12. After the venting is completed, the resetting member 40 drives the connecting rod 211, causing the connecting rod 211 to swing, thereby driving the inner seal 22 to block the first channel 11 and the outer seal 23 to block the second channel 12.

[0076] like Figures 1 to 12 As shown, another embodiment of the present invention provides a cover assembly, which includes a cover body 71 and a valve body assembly 72. The valve body assembly 72 is disposed on the cover body 71 and is the valve body assembly provided above. The swing lever 21 can simultaneously drive the inner seal 22 and the outer seal 23 to move, so as to block or open the first channel 11 and the second channel 12. Specifically, since the inner seal 22 is sealed to the inlet end of the first channel 11 and the outer seal 23 is sealed to the outlet end of the second channel 12, when there is pressure in the valve body assembly, the pressure in the valve body assembly will squeeze the inner seal 22 and the outer seal 23 respectively. However, the squeezing forces on the inner seal 22 and the outer seal 23 are in opposite directions, and the squeezing forces on the inner seal 22 and the outer seal 23 can cancel each other out, reducing the resistance when the lever 21 drives the inner seal 22 and the outer seal 23 to move, thereby reducing the valve opening resistance and valve closing resistance of the valve body assembly. Therefore, the technical solution of this embodiment effectively solves the problem in related technologies that valve adjustment requires overcoming significant resistance, which leads to greater difficulty in valve adjustment.

[0077] Currently, electric pressure cookers have a steam vent pipe on the lid, with a pressure-limiting valve installed on the vent pipe. Below the pressure-limiting valve is a lever, and a solenoid valve is installed at the other end of the lever. When the solenoid valve activates, it pushes the lever, lifting the pressure-limiting valve and separating it from the vent pipe, thus initiating steam release. When the solenoid valve stops activating, the pressure-limiting valve resets under gravity, pressing completely against the vent pipe, ending the steam release process. However, because the vent pipe has a small diameter, the amount of steam released at one time is small, resulting in a slow steam release speed.

[0078] In this embodiment, since the valve body 10 is provided with a first channel 11 and a second channel 12, the swing lever 21 can simultaneously drive the inner seal 22 and the outer seal 23 to move, thereby opening the first channel 11 and the second channel 12. This increases the valve body passage of the valve body assembly, increases the single discharge volume of the valve body assembly, and makes driving the valve body assembly easier and less strenuous. Therefore, the cover assembly with the above-described valve body assembly also has the aforementioned advantages.

[0079] like Figure 1 , Figure 11 as well as Figure 12 As shown, the cover body 71 and the valve body 10 of the valve body assembly 72 are integrally molded. This integral molding structure simplifies the molding process of the cover body assembly.

[0080] like Figure 5 and Figure 6 As shown, the cover assembly also includes a pressure relief valve 60, which is disposed on the valve body 10. The pressure relief valve 60 can relieve pressure, thereby protecting the valve body assembly and preventing damage to it.

[0081] like Figure 5 and Figure 6 As shown, the valve body assembly also includes an exhaust pipe 50, which passes through the valve body 10 and communicates with the valve cavity 15. A pressure relief valve 60 is disposed on the exhaust pipe 50. The cover assembly has three exhaust channels: a first channel 11, a second channel 12, and the inner hole of the exhaust pipe 50. When the cover assembly performs valve opening operation, by opening the above three valve body channels, the exhaust channels of the cover assembly can be increased, the single discharge volume of the cover assembly can be increased, and the compactness of the arrangement of the pressure relief valve 60 and the valve body assembly can be improved.

[0082] Among them, the pressure relief valve 60 includes two types: gravity pressure relief valve and spring pressure relief valve. The gravity pressure relief valve is used to close the exhaust pipe. Its advantage is that it can be manually vented. The advantage of the spring pressure relief valve is that it is low in height, which is beneficial to the appearance of the product.

[0083] Another embodiment of the present invention provides a cooking appliance including a lid assembly, which is the lid assembly provided above. The lid assembly described above can increase the single discharge volume, and the valve assembly is easier and less labor-intensive to drive. Therefore, the cooking appliance having the lid assembly described above also has the aforementioned advantages.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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.

[0089] 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 by, The valve body assembly comprises: a valve body (10) having a first passage (11) and a second passage (12) arranged through a valve wall thereof; a sealing structure (20) comprising a lever member (21) and an inner sealing member (22) and an outer sealing member (23) arranged on the lever member (21), a middle portion of the lever member (21) being hinged to the valve body (10), the inner sealing member (22) and the outer sealing member (23) being respectively arranged on two sides of a hinged shaft of the lever member (21); wherein the inner sealing member (22) is in sealing cooperation with an inlet end of the first passage (11), the outer sealing member (23) is in sealing cooperation with an outlet end of the second passage (12), the lever member (21) is capable of driving the inner sealing member (22) to move to block or open the first passage (11), and the lever member (21) is capable of driving the outer sealing member (23) to move to block or open the second passage (12).

2. The valve body assembly of claim 1, wherein, The lever member (21) comprises a connecting rod (211), a first top rod (212) and a second top rod (213), a middle portion of the connecting rod (211) being hinged to the valve body (10), one end of the first top rod (212) and one end of the second top rod (213) being respectively hinged to the connecting rod (211), the inner sealing member (22) being arranged on the first top rod (212), and the outer sealing member (23) being arranged on the second top rod (213).

3. The valve body assembly of claim 2, wherein, The first top rod (212) comprises a first hinged section (2121), a penetrating section (2122) and a first sealing section (2123) connected in sequence, the first hinged section (2121) being hinged to the connecting rod (211), the penetrating section (2122) penetrating the first passage (11), and the inner sealing member (22) being arranged on the first sealing section (2123).

4. The valve body assembly of claim 2, wherein, The second top rod (213) comprises a second hinged section (2131), a second sealing section (2132) and a guide section (2133) connected in sequence, the second hinged section (2131) being hinged to the connecting rod (211), the outer sealing member (23) being arranged on the second sealing section (2132), and the guide section (2133) penetrating the second passage (12) and being in guide cooperation with the second passage (12).

5. The valve body assembly of claim 2, wherein, The valve body assembly further comprises a driving member (30) capable of driving the connecting rod (211) to rotate to open the first passage (11) and the second passage (12).

6. The valve body assembly according to claim 5, wherein the driving member (30) has a pushing portion (31), the connecting rod (211) has an obliquely arranged pushing rod section (2111) located on a side of the second top rod (213) away from the first top rod (212), the pushing portion (31) is in abutting cooperation with a side wall of the valve body (10) of the pushing rod section (2111); and / or, The valve body assembly further comprises a reset member (40) connected with the connecting rod (211) to apply a reset force to the connecting rod (211) to block the first channel (11) and the second channel (12).

7. The valve body assembly of any one of claims 1 to 6, wherein, The valve body (10) is a flat plate structure.

8. The valve body assembly of claim 7, wherein, The outlet end of the first channel (11) is surrounded by a first annular rib (13), and / or the inlet end of the second channel (12) is surrounded by a second annular rib (14).

9. The valve body assembly of any one of claims 1 to 6, wherein, The valve body (10) has a valve cavity (15) and an air inlet (16) communicating with the valve cavity (15), the second channel (12) communicates with the valve cavity (15), and the axis of the first channel (11) is arranged at an angle with the axis of the second channel (12).

10. A cap assembly, characterized by The cover body assembly comprises: a cover body (71); a valve body assembly (72) arranged on the cover body (71), the valve body assembly (72) being the valve body assembly according to any one of claims 1 to 9.

11. The cover body assembly according to claim 10, wherein the cover body (71) and the valve body (10) of the valve body assembly (72) are integrally formed; and / or the cover body assembly further comprises a pressure limiting valve (60) arranged on the valve body (10).

12. A cooking appliance comprising a lid assembly, characterized in that, The cover body assembly is the cover body assembly according to claim 10 or 11.

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