Lever structure, valve body assembly, cover body assembly and cooking appliance

Abstract

The utility model provides a kind of lever structure, valve body assembly, cover body assembly and cooking utensil, the lever structure is rotatably arranged on valve main body, valve main body has first passage and second passage, lever structure includes: the middle part of lever piece has valve main body hinged part, lever piece has the first installation part of installation inner sealing element and the second installation part of installation outer sealing element, first installation part and second installation part are located at the two sides of valve main body hinged part respectively, inner sealing element and the inlet end sealing cooperation of first passage, outer sealing element and the outlet end sealing cooperation of second passage;Wherein, lever piece further has transmission part for being driven, transmission part can drive lever piece to rotate when being driven. Through the technical scheme provided in the present application, the problem that the valve adjustment needs to overcome greater resistance and further leads to the greater difficulty of valve adjustment in the related art can be solved.

Description

Technical Field

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

[0002] A valve is a structure used to control the direction of flow. Valves can have multiple openings, and can be configured with multiple inlets and one outlet, or multiple outlets and one inlet, to meet different usage requirements. Specifically, the flow direction of the valve is adjusted by regulating the valve core.

[0003] In related technologies, valve regulation requires overcoming fluid resistance, which means that a large force is needed during regulation, making valve regulation more difficult. Utility Model Content

[0004] This utility model provides a lever structure, a valve body assembly, a cover assembly, and a cooking appliance to solve the problem in related technologies where valve adjustment requires overcoming significant resistance, leading to greater difficulty in valve adjustment.

[0005] According to one aspect of the present invention, a lever structure is provided, which is rotatably mounted on a valve body. The valve body has a first channel and a second channel penetrating its valve wall. The lever structure includes a lever member, a valve body hinge portion in the middle of the lever member, a first mounting portion for mounting an inner seal and a second mounting portion for mounting an outer seal, the first mounting portion and the second mounting portion being located on opposite sides of the valve body hinge portion, the inner seal being sealed to the inlet end of the first channel, and the outer seal being sealed to the outlet end of the second channel. The lever member also has a drive portion for being driven, which, when driven, can rotate the lever member to drive the inner seal to open the first channel and the outer seal to open the second channel.

[0006] By applying the technical solution of this utility model, the swing lever can simultaneously drive the inner and outer seals to move, thereby blocking or opening the first and second channels. 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 inside the valve body assembly, the pressure inside the valve body assembly will squeeze the inner and outer seals respectively. However, the squeezing forces on the inner and outer seals are in opposite directions, and the squeezing 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.

[0007] Furthermore, the transmission part is located at one end of the lever, or the transmission part is located in the middle of the lever and is provided corresponding to the hinge part of the valve body, so as to facilitate the solenoid valve to drive the lever to swing; and / or, the lever structure also includes a reset part, which is connected to the lever to drive the inner seal to block the first channel and the outer seal to block the second channel. The reset part enables the inner seal to block the first channel and the outer seal to block the second channel when the sealing structure is not subjected to external force.

[0008] Furthermore, the lever component includes a connecting rod, a first push rod, and a second push rod. The valve body hinge is located in the middle of the connecting rod. One end of the first push rod and one end of the second push rod are respectively hinged to the connecting rod. A first mounting part is located on the first push rod, a second mounting part is located on the second push rod, and a transmission part is located on the connecting rod. Since one end of the first push rod and one end of the second push rod are respectively hinged to the connecting rod, when the lever component is oscillating to drive the inner and outer seals to move, both the first and second push rods oscillate relative to the lever component. This allows the first push rod to be coaxially aligned with the first channel, and the second push rod to be aligned with the second channel. This facilitates the smooth sealing of the inner seal in the first channel and the smooth sealing of the outer seal in the second channel, improving the sealing effect of the inner seal on the first channel and the sealing effect of the outer seal on the second channel.

[0009] Furthermore, the connecting rod includes a first rod segment and a second rod segment connected sequentially. The valve body hinge is located in the middle of the first rod segment. The first push rod and the second push rod are respectively hinged to both ends of the first rod segment. The extension direction of the first rod segment is set at an angle to the extension direction of the second rod segment. The transmission part is located on the second rod segment. When the push rod pushes the transmission part, the extension direction of the first rod segment is set at an angle to the extension direction of the second rod segment, which facilitates the push rod to push the lever to rotate and can use the second rod segment to extend the lever arm, thus achieving a labor-saving effect.

[0010] Furthermore, the connecting rod includes a third segment and a fourth segment. The valve body hinge is located in the middle of the third segment. The first and second push rods are hinged to both ends of the third segment, respectively. One end of the fourth segment is connected to the middle of the third segment. The extension direction of the third segment forms an angle with the extension direction of the fourth segment. The transmission part is located on the fourth segment. When the push rod pushes the transmission part, the extension direction of the third segment forms an angle with the extension direction of the fourth segment, which facilitates the push rod pushing the lever to rotate.

[0011] Furthermore, the lever structure also includes a connecting rod seat, which has a valve body connection hole and two opposing first lugs, each with a first shaft hole. The valve body hinge portion consists of pivot posts located on both sides of the connecting rod, with the two pivot posts rotatably passing through the two first shaft holes; and / or, the connecting rod is a plate-like structure. Reducing the thickness of the connecting rod can increase the overall volume of the lever structure.

[0012] Furthermore, the first push rod includes a first hinged section, a through section, and a first sealing section connected sequentially. The first hinged section has two opposing second lugs, each with a second shaft hole. Inner rotating posts are provided on both sides of the connecting rod, and the two inner rotating posts are rotatably inserted through the two second shaft holes. The through section passes through the first channel. The first mounting part is a first annular mounting groove provided on the outer wall of the first sealing section. When the lever drives the inner seal to block the first channel, the through section passes through the first channel and forms a guiding engagement with the first channel. The inner seal smoothly seals the first channel, improving its sealing effect. Alternatively, the second push rod includes a second hinged section, a second sealing section, and a guide section connected sequentially. The second hinged section has two opposing third lugs, each with a third shaft hole. External rotating posts are provided on both sides of the connecting rod, rotatably passing through the two third shaft holes. The second mounting part is a second annular mounting groove on the outer wall of the second sealing section. The guide section passes through the second channel and guides the second channel. When the lever drives the inner seal to seal the first channel, the passing section passes through the first channel and guides the first channel, ensuring the inner seal smoothly seals the first channel and improves its sealing effect.

[0013] According to another aspect of this utility model, a valve body assembly is provided, comprising: a valve body; a lever structure, the lever structure being hinged to the valve body via a hinge portion, the lever structure being the aforementioned lever structure; an inner seal and an outer seal, the inner seal being disposed on a first mounting portion of the lever structure, and the outer seal being disposed on a second mounting portion of the lever structure; and a solenoid valve, the push rod of which is driven to engage with the transmission portion of the lever structure. The swing lever can simultaneously drive 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 that valve adjustment requires overcoming significant resistance, which leads to greater difficulty in valve adjustment.

[0014] Furthermore, the end of the push rod has a guide ramp that mates with the transmission unit. The pushing direction of the push rod is set at an angle to the transmission unit, and the guide ramp is used to facilitate the push rod pushing the connecting rod to swing.

[0015] According to another aspect of this utility model, 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 the first and second channels. 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] According to another aspect of the present 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

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A cross-sectional view of the cover assembly provided according to Embodiment 1 of the present invention is shown;

[0019] Figure 2 A cross-sectional view of a valve body assembly provided according to Embodiment 1 of the present invention, in which an inner seal blocks a first channel and an outer seal blocks a second channel, is shown.

[0020] Figure 3 A cross-sectional view is shown of a valve body assembly provided according to Embodiment 1 of the present invention, in which the inner seal opens the first channel and the outer seal opens the second channel.

[0021] Figure 4 A schematic diagram of the connecting rod structure of the lever component according to Embodiment 1 of the present invention is shown;

[0022] Figure 5 A cross-sectional view of a valve body assembly provided according to Embodiment 2 of the present invention, in which an inner seal blocks a first channel and an outer seal blocks a second channel, is shown.

[0023] 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.

[0024] 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;

[0025] 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;

[0026] 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;

[0027] Figure 10 A schematic diagram of the structure of a solenoid valve with a valve body assembly provided according to an embodiment of the present invention is shown;

[0028] Figure 11 A schematic diagram of the cover body and valve body of the cover assembly provided according to Embodiment 1 of the present utility model is shown;

[0029] 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.

[0030] The above figures include the following reference numerals:

[0031] 10. Valve body; 11. First channel; 12. Second channel;

[0032] 21. Lever component; 211. Connecting rod; 2111. First rod segment; 2112. Second rod segment; 2113. Third rod segment; 2114. Fourth rod segment; 212. First push rod; 2121. First hinge segment; 21211. Second lug; 21212. Second shaft hole; 2122. Through section; 2123. First sealing section; 213. Second push rod; 2131. Second hinge segment; 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; 217. Transmission part; 22. Inner seal; 23. Outer seal; 24. Connecting rod seat; 241. Valve body connecting hole; 242. First lug; 2421. First shaft hole;

[0033] 30. Solenoid valve; 31. Push rod; 311. Guide slope;

[0034] 40. Reset component;

[0035] 50. Exhaust pipe; 60. Pressure relief valve;

[0036] 71. Cover body; 72. Valve body assembly. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, 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 utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0038] like Figures 1 to 12 As shown, this embodiment of the present invention provides a lever structure, which is rotatably mounted on a valve body 10. The valve body 10 has a first channel 11 and a second channel 12 penetrating its valve wall. The lever structure includes a lever member 21, with a valve body hinge portion 214 in the middle of the lever member 21. The lever member 21 has a first mounting portion 215 for mounting an inner seal 22 and a second mounting portion 216 for mounting an outer seal 23. The first mounting portion 215 and the second mounting portion 216 are respectively located on both sides of the valve body hinge portion 214. 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 member 21 also has a drive portion 217 for being driven. When the drive portion 217 is driven, it can drive the lever member 21 to rotate, so that the lever member 21 drives the inner seal 22 to open the first channel 11, and the lever member 21 drives the outer seal 23 to open the second channel 12.

[0039] By utilizing the lever structure provided in this embodiment, the swing lever 21 can simultaneously drive the inner seal 22 and the outer seal 23 to move, thereby blocking or opening 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 inside 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 where valve adjustment requires overcoming significant resistance, leading to greater difficulty in valve adjustment.

[0040] Furthermore, by using the push rod 31 of the solenoid valve 30 to drive the lever 21 to rotate, the automation level of the valve body assembly can be improved, saving manual operation.

[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 3 As shown, the transmission part 217 is located at one end of the lever 21, which facilitates the solenoid valve to drive the lever to swing.

[0043] like Figure 5 and Figure 6 As shown, the transmission part 217 is located in the middle of the lever 21 and is provided corresponding to the valve body hinge part 214, which facilitates the solenoid valve to drive the lever to swing.

[0044] like Figures 1 to 3 , Figure 5 as well as Figure 6 As shown, the lever structure also includes a reset member 40, which is connected to the lever member 21 so that the lever member 21 drives the inner seal member 22 to block the first channel 11, and drives the outer seal member 23 to block the second channel 12. The reset member 40 is provided so that the lever member 21 can drive the inner seal member 22 to block the first channel 11 and the outer seal member 23 to block the second channel 12 when there is no external force.

[0045] like Figures 1 to 6 As shown, the lever 21 includes a connecting rod 211, a first push rod 212, and a second push rod 213. The valve body hinge portion 214 is located in the middle of the connecting rod 211. 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 first mounting portion 215 is located on the first push rod 212, the second mounting portion 216 is located on the second push rod 213, and the transmission portion 217 is located on the connecting rod 211. 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.

[0046] 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.

[0047] It should be noted that the structure of the connecting rod 211 includes the following two embodiments. In the first embodiment, the connecting rod 211 includes a first rod segment 2111 and a second rod segment 2112 connected in sequence. The valve body hinge part 214 is located in the middle of the first rod segment 2111. The first push rod 212 and the second push rod 213 are respectively hinged to both ends of the first rod segment 2111. In the second embodiment, the connecting rod 211 includes a third rod segment 2113 and a fourth rod segment 2114. The valve body hinge part 214 is located in the middle of the third rod segment 2113. The first push rod 212 and the second push rod 213 are respectively hinged to both ends of the third rod segment 2113. One end of the fourth rod segment 2114 is connected to the middle of the third rod segment 2113.

[0048] like Figure 2 and Figure 3 As shown, in Embodiment 1, the connecting rod 211 includes a first rod segment 2111 and a second rod segment 2112 connected in sequence. The valve body hinge part 214 is located in the middle of the first rod segment 2111. The first push rod 212 and the second push rod 213 are respectively hinged to the two ends of the first rod segment 2111. The extension direction of the first rod segment 2111 is set at an angle to the extension direction of the second rod segment 2112. The transmission part 217 is set on the second rod segment 2112. When the push rod 31 pushes the transmission part 217, since the extension direction of the first rod segment 2111 is set at an angle to the extension direction of the second rod segment 2112, it is convenient for the push rod 31 to push the lever 21 to rotate. Moreover, the second rod segment 2112 can be used to extend the lever arm, which can save effort.

[0049] The angle between the extension direction of the first segment 2111 and the extension direction of the second segment 2112 is between 100° and 170°.

[0050] like Figure 5 and Figure 6 As shown, in Embodiment 2, the connecting rod 211 includes a third rod segment 2113 and a fourth rod segment 2114. The valve body hinge portion 214 is located in the middle of the third rod segment 2113. The first push rod 212 and the second push rod 213 are respectively hinged to both ends of the third rod segment 2113. One end of the fourth rod segment 2114 is connected to the middle of the third rod segment 2113. The extension direction of the third rod segment 2113 and the extension direction of the fourth rod segment 2114 are set at an angle. The transmission part 217 is disposed on the fourth rod segment 2114. When the push rod 31 pushes the transmission part 217, the extension direction of the third rod segment and the extension direction of the fourth rod segment are set at an angle, which facilitates the push rod 31 to push the lever 21 to rotate.

[0051] like Figure 1 and Figure 7As 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.

[0052] like Figures 1 to 3 , Figure 11 as well as Figure 12 As shown, connecting rod 211 has a plate-like structure. Reducing the thickness of the connecting rod can increase the overall volume of the lever structure.

[0053] like Figure 2 , Figure 3 , Figure 5 , Figure 6 as well as Figure 8 As shown, the first push rod 212 includes a first hinge section 2121, a through section 2122, and a first sealing section 2123 connected in sequence. The first hinge section 2121 has two opposing second lugs 21211, each with a second shaft hole 21212. Inner rotating posts are provided on both sides of the connecting rod 211, and the two inner rotating posts are rotatably inserted through the two second shaft holes 21212. The through section 2122 passes through the first channel 11. The first mounting part 215 is a first annular mounting groove provided on the outer wall of 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.

[0054] 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 has two opposing third lugs 21311, each with a third shaft hole 21312. External rotating posts are provided on both sides of the connecting rod 211, and the two external rotating posts are rotatably inserted into the two third shaft holes 21312. The second mounting part 216 is a second annular mounting groove provided on the outer side wall of the second sealing section 2132. The guide section 2133 passes through the second channel 12 and guides the second channel 12. 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.

[0055] Furthermore, the second annular mounting groove and the first annular mounting groove facilitate the installation and positioning of the inner seal 22 and the outer seal 23.

[0056] In this embodiment, the connecting rod 211 adopts a straight rod structure. 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 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 that 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.

[0057] In this embodiment, the distance between the valve body hinge portion 214 and the first push rod 212 is equal to the distance between the valve body hinge portion 214 and the second push rod 213. 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 on the first channel 11 and the outer seal 23 on the second channel 12.

[0058] like Figures 1 to 12As shown, another embodiment of the present invention provides a valve body assembly, which includes a valve body 10, a lever structure, an inner seal 22, an outer seal 23, and a solenoid valve 30. The lever structure is hinged to the valve body 10 through the valve body hinge portion 214. The lever structure is the lever structure provided above. The inner seal 22 is disposed on the first mounting portion 215 of the lever structure, and the outer seal 23 is disposed on the second mounting portion 216 of the lever structure. The push rod 31 of the solenoid valve 30 is driven to cooperate with the transmission portion 217 of the lever structure.

[0059] Using the valve body assembly provided in this embodiment, the swing lever 21 can simultaneously drive the inner seal 22 and the outer seal 23 to move, thereby blocking or opening 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 inside 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 large resistance, which leads to greater difficulty in valve adjustment.

[0060] like Figure 10 As shown, the end of the push rod 31 has a guide slope 311 that cooperates with the transmission part 217. The pushing direction of the push rod 31 is set at an angle to the transmission part 217, and the guide slope 311 is used to facilitate the push rod 31 to push the connecting rod 211 to swing.

[0061] In other embodiments, the end of the push rod 31 is movably connected (e.g., hinged) to the transmission part 217 so that the push rod 31 can push and pull the connecting rod 211 to swing.

[0062] like Figures 1 to 12As shown, another embodiment of this utility model 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] Another embodiment of this utility model provides a cooking appliance, including a lid assembly, which is the lid assembly described 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.

[0067] 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.

[0068] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this 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 drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0069] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0070] 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.

[0071] 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 cannot be construed as limiting the scope of protection of this utility model.

[0072] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lever structure, characterized in that, The lever structure is rotatably mounted on the valve body (10), the valve body (10) having a first channel (11) and a second channel (12) extending through its valve wall, the lever structure comprising: The lever (21) has a valve body hinge (214) in the middle. The lever (21) has a first mounting part (215) for mounting an inner seal (22) and a second mounting part (216) for mounting an outer seal (23). The first mounting part (215) and the second mounting part (216) are located on both sides of the valve body hinge (214). 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) also has a drive part (217) for being driven. When the drive part (217) is driven, it can drive the lever (21) to rotate so that the lever (21) drives the inner seal (22) to open the first channel (11) and the lever (21) drives the outer seal (23) to open the second channel (12).

2. The lever structure according to claim 1, characterized in that, The transmission part (217) is located at one end of the lever (21), or the transmission part (217) is located in the middle of the lever (21) and is provided corresponding to the valve body hinge part (214); and / or, The lever structure further includes a reset member (40), which is connected to the lever member (21) so that the lever member (21) drives the inner seal member (22) to block the first channel (11) and the lever member (21) drives the outer seal member (23) to block the second channel (12).

3. The lever structure according to claim 1, characterized in that, The lever (21) includes a connecting rod (211), a first push rod (212), and a second push rod (213). The valve body hinge (214) is located in the middle of the connecting rod (211). 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 first mounting part (215) is located on the first push rod (212), the second mounting part (216) is located on the second push rod (213), and the transmission part (217) is located on the connecting rod (211).

4. The lever structure according to claim 3, characterized in that, The connecting rod (211) includes a first rod segment (2111) and a second rod segment (2112) connected in sequence. The valve body hinge part (214) is located in the middle of the first rod segment (2111). The first push rod (212) and the second push rod (213) are respectively hinged to the two ends of the first rod segment (2111). The extension direction of the first rod segment (2111) is set at an angle to the extension direction of the second rod segment (2112). The transmission part (217) is located on the second rod segment (2112).

5. The lever structure according to claim 3, characterized in that, The connecting rod (211) includes a third rod segment (2113) and a fourth rod segment (2114). The valve body hinge portion (214) is located in the middle of the third rod segment (2113). The first push rod (212) and the second push rod (213) are respectively hinged to both ends of the third rod segment (2113). One end of the fourth rod segment (2114) is connected to the middle of the third rod segment (2113). The extension direction of the third rod segment (2113) is set at an angle to the extension direction of the fourth rod segment (2114). The transmission portion (217) is located on the fourth rod segment (2114).

6. The lever structure according to claim 3, characterized in that, The lever structure further includes a connecting rod seat (24), which has a valve body connecting hole (241). The connecting rod seat (24) has two opposing first lugs (242), each of which has a first shaft hole (2421). The valve body hinge (214) is a pivot post disposed on both sides of the connecting rod (211), and the two pivot posts are rotatably inserted through the two first shaft holes (2421); and / or, The connecting rod (211) has a plate-like structure.

7. The lever structure according to claim 3, characterized in that, The first push rod (212) includes a first hinge section (2121), a through section (2122), and a first sealing section (2123) connected in sequence. The first hinge section (2121) has two opposing second lugs (21211), each of which has a second shaft hole (21212). Inner rotating posts are provided on both sides of the connecting rod (211), and the two inner rotating posts are rotatably inserted through the two second shaft holes (21212). The through section (2122) passes through the first channel (11). The first mounting part (215) is a first annular mounting groove provided on the outer wall of the first sealing section (2123); and / or, 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) has two oppositely arranged third lugs (21311). Each of the two third lugs (21311) is provided with a third shaft hole (21312). Both sides of the connecting rod (211) are provided with outer rotating posts. The two outer rotating posts are rotatably inserted through the two third shaft holes (21312). The second mounting part (216) is a second annular mounting groove provided on the outer side wall of the second sealing section (2132). The guide section (2133) is inserted through the second channel (12) and guides and cooperates with the second channel (12).

8. A valve body assembly, characterized in that, The valve body assembly includes: Valve body (10); A lever structure, wherein the lever structure is hinged to the valve body (10) via a valve body hinge portion (214), and the lever structure is the lever structure according to any one of claims 1 to 7; An inner seal (22) and an outer seal (23) are provided, wherein the inner seal (22) is disposed on the first mounting portion (215) of the lever structure, and the outer seal (23) is disposed on the second mounting portion (216) of the lever structure; The solenoid valve (30) has a push rod (31) that drives the transmission part (217) of the lever structure.

9. A cover assembly, characterized in that, The cover assembly includes: Cover body (71); A valve body assembly (72) is disposed on the cover body (71), and the valve body assembly (72) is the valve body assembly as described in claim 8.

10. A cooking utensil, comprising a lid assembly, characterized in that, The cover assembly is the cover assembly as described in claim 9.

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