Exhaust valve and container cover

Abstract

The utility model provides an exhaust valve and a container cover, the exhaust valve comprises a body, the body is provided with a first cavity, a first air inlet and a first exhaust port, and the first air inlet and the first exhaust port are both communicated with the first cavity; the valve element is located in the first cavity and used for blocking or opening the first air inlet. The exhaust cover covers the body and is connected with the body, the exhaust cover is provided with a second cavity, and the first exhaust port is communicated with the first cavity and the second cavity; the exhaust cover is further provided with a second exhaust port communicated with the second cavity and the outside, and the axis of the second exhaust port and the axis of the first exhaust port are located on different straight lines. In the embodiment, steam entering the second cavity from the first cavity through the first exhaust port needs to bypass in the second cavity and then is exhausted from the second exhaust port, so that the steam stays for a longer time in the second cavity, condensation of the steam in the second cavity is promoted, the flow speed of the steam is reduced, and the risk of food material splashing is reduced; and noise in the exhaust process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of cooking containers, and in particular to an exhaust valve and a container cover. Background Art

[0002] Pressure cookers are cooking containers that people often use in their daily lives. When a pressure cooker is heated, steam is generated inside. The gradual increase in steam causes the internal pressure of the pressure cooker to gradually increase, making it easier to cook food quickly. To ensure the safety of the pressure cooker, an exhaust valve is usually provided on the container cover of the pressure cooker. When the pressure inside the pressure cooker is too high, the steam entering through the air inlet of the exhaust valve can lift up the valve core that seals the air inlet, thereby exhausting part of the steam to reduce the pressure. However, the exhaust valve has the problem of high-speed steam injection into the external environment when exhausting. Especially when used to cook more viscous ingredients, the ingredients will be ejected out of the external environment along with the steam. At the same time, a harsh sound is generated during the exhaust process, and the user experience is poor. Utility Model Content

[0003] In view of this, the present application provides an exhaust valve and a container cover to reduce the risk of splashing during the exhaust process, reduce the noise during the exhaust process, and improve the user experience.

[0004] A first aspect of the present application provides an exhaust valve, the exhaust valve comprising:

[0005] A body, wherein the body has a first cavity, a first air inlet and a first exhaust port, wherein the first air inlet and the first exhaust port are both connected to the first cavity;

[0006] A valve core, the valve core is located in the first cavity and is used to block or open the first air inlet;

[0007] An exhaust cover, the exhaust cover is covered on the main body and connected to the main body, the exhaust cover has a second cavity, and the first exhaust port communicates with the first cavity and the second cavity;

[0008] The exhaust cover further has a second exhaust port connected to the second cavity and the outside, and the axis of the second exhaust port and the axis of the first exhaust port are located on different straight lines.

[0009] In this embodiment, the steam entering the pressure limiting valve from the first air inlet first enters the second cavity from the first cavity, and then is discharged to the outside from the second exhaust port of the second cavity. The second cavity can buffer the high-speed jet steam and reduce the flow rate of the steam. The inner wall of the second cavity can condense the steam. Part of the steam continues to condense in the second cavity, reducing the amount of steam discharged from the second exhaust port. When the flow rate and amount of steam discharged from the second exhaust port are reduced, the risk of steam splashing during the exhaust process can be reduced, and the safety of the exhaust valve and the cooking container can be improved. At the same time, during the exhaust process, the inner wall of the second cavity can also play a role in sound insulation, thereby reducing the noise during the exhaust process of the exhaust valve and improving the user experience.

[0010] Moreover, the axis of the first exhaust port connecting the first cavity and the second cavity is the first axis L1, and the axis of the second exhaust port connecting the second cavity and the outside is the second axis L2. The first axis L1 and the second axis L2 are located on different straight lines (the two are not colinear). At this time, the steam entering the second cavity from the first cavity through the first exhaust port cannot be discharged directly from the second exhaust port, but needs to be discharged from the second exhaust port after detouring in the second cavity, so that the steam stays in the second cavity for a longer time, further promotes the condensation of steam in the second cavity, and further reduces the flow rate of steam. At the same time, the food that enters the second cavity with the steam needs to detour in the second cavity before being discharged from the second exhaust port, thereby further reducing the risk of food splashing.

[0011] In a specific implementation, the angle between the axis of the first exhaust port and the axis of the second exhaust port is 80°-100°.

[0012] At this time, when steam and food enter the second cavity from the first exhaust port, they need to detour at a larger angle before being discharged to the outside from the second exhaust port, thereby further reducing the risk of splashing.

[0013] In a specific implementation, the exhaust cover includes a valve cover and a second exhaust pipe connected to the valve cover, the valve cover has the second cavity, the second exhaust pipe has a second air inlet and the second exhaust port, and the second air inlet is located in the second cavity.

[0014] In this embodiment, when the exhaust cover includes a second exhaust pipe, the positions of the second air inlet and the second exhaust port can be conveniently changed by changing the length of the second exhaust pipe and the connection position of the second exhaust pipe and the valve cover, so as to enable the steam and food to bypass the second cavity before being discharged from the second exhaust port, and the bypass path can be changed, thereby further reducing the risk of steam and food splashing.

[0015] In a specific implementation, the valve cover has a first side wall, and the second exhaust pipe is connected to the first side wall.

[0016] In this embodiment, when the second exhaust pipe is connected to the first side wall, a preset angle can be easily achieved between the first axis L1 of the first exhaust port and the second axis L2 of the second exhaust port, thereby reducing the risk of steam and food splashing and realizing side exhaust of the exhaust valve.

[0017] In a specific implementation, the first exhaust port is located between the second air inlet and the second exhaust port.

[0018] At this time, the first exhaust port is located between the second air inlet and the second exhaust port. The steam and food discharged from the first exhaust port are blocked by the tube wall of the second exhaust pipe, and then can enter the first air inlet, so that the steam and food bypass the second cavity, and the tube wall of the second exhaust pipe can further reduce the flow rate of the steam and food, further reducing the risk of steam and food splashing.

[0019] In a specific implementation, the first exhaust port has a second side wall, and a minimum distance between the second side wall and the second air inlet is D1, 2mm≤D1≤5mm.

[0020] In this embodiment, D1 is used to characterize the detour distance of steam from the first exhaust port to the second air inlet. For valve covers of the same size, when D1 is too large, the minimum distance D1 between the second air inlet and the first side wall of the valve cover is too small, and there is a risk of affecting the steam entering the second air inlet and affecting the exhaust; when D1 is too small, the detour distance of steam from the first exhaust port to the second air inlet is too small, and the flow rate of steam entering the second air inlet cannot be effectively reduced, resulting in poor anti-splashing and noise reduction effects of the exhaust valve. In this embodiment, when 2mm≤D1≤5mm, the steam can smoothly enter the second air inlet, and the flow rate of the steam entering the second air inlet can be effectively reduced, thereby achieving normal exhaust, reducing the risk of splashing during exhaust, and reducing exhaust noise.

[0021] In a specific implementation, the flow cross-sectional area of ​​the first exhaust port is S1, the flow cross-sectional area of ​​the second air inlet is S2, and S1≤S2.

[0022] When S1≤S2, the exhaust area of ​​the steam discharged from the second cavity through the second exhaust pipe is not less than the intake area of ​​the steam entering the second cavity, thereby promoting the smooth discharge of the steam in the second cavity and improving the safety of the exhaust valve.

[0023] In a specific implementation, the main body has an extension portion, the extension portion is located in the second cavity, and the first exhaust port is arranged at the extension portion.

[0024] In this solution, the extension part can make the first exhaust port close to the second air inlet of the second exhaust pipe, and can adjust the distance between the first exhaust port and the second air inlet along the height direction of the exhaust valve by controlling the extension length of the extension part. In addition, the extension part can also guide the steam entering the second cavity from the first cavity, that is, it can promote the steam to enter the second air inlet, thereby promoting exhaust.

[0025] In a specific implementation, the exhaust cover is detachably connected to the body.

[0026] In this solution, the exhaust cover is detachably connected to the valve body, so that the exhaust cover can be removed from the body, thereby facilitating the cleaning of the second cavity of the exhaust cover and improving the cleanliness of the exhaust valve.

[0027] A second aspect of the present application provides a container cover, the container cover comprising:

[0028] Cover body;

[0029] An exhaust valve, the exhaust valve being mounted on the cover body;

[0030] Wherein, the exhaust valve is the exhaust valve described above.

[0031] In this embodiment, during the cooking process, the exhaust valve can reduce the risk of steam splashing during the exhaust process, and reduce the risk of food splashing with the steam, thereby improving the safety of the cooking container. At the same time, during the exhaust process, the inner wall of the second cavity can also play a role in sound insulation, thereby reducing the noise during the exhaust process of the exhaust valve and improving the user experience.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 This is a schematic structural diagram of a container cover provided in the present application in a specific embodiment;

[0035] Figure 2 for Figure 1 A schematic diagram of the structure of the exhaust valve in a specific embodiment;

[0036] Figure 3 for Figure 2 A partial enlarged view of part I;

[0037] Figure 4 for Figure 2 A schematic diagram of the structure of the middle exhaust cover in a specific embodiment;

[0038] Figure 5 for Figure 2 Schematic diagram of the structure with the exhaust cover removed.

[0039] Description of reference numerals:

[0040] 1-cover body;

[0041] 2- Exhaust valve;

[0042] 21-Ontology;

[0043] 211-first valve body;

[0044] 212- second valve body;

[0045] 213-first cavity;

[0046] 214- extension;

[0047] 215-first exhaust port;

[0048] 215a- second side wall;

[0049] 216-installation part;

[0050] 217-first top wall;

[0051] 218 - first exhaust pipe;

[0052] 218a - first air inlet;

[0053] 218b-Import;

[0054] 22-valve core;

[0055] 24-exhaust cover;

[0056] 241-valve cover;

[0057] 241a- second cavity;

[0058] 241b-first side wall;

[0059] 241c - second top wall;

[0060] 242 - second exhaust pipe;

[0061] 242a - second air inlet;

[0062] 242b - Second exhaust port. DETAILED DESCRIPTION

[0063] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0064] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0065] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0066] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0067] The embodiment of the present application provides an exhaust valve 2 and a cooking container including the exhaust valve 2. The cooking container may be a pressure cooker, a micro pressure cooker, an electric rice cooker, etc. The cooking container includes a container cover and a container body. The container cover can be covered on the container body. Figure 1 As shown, the container cover comprises a cover body 1 and an exhaust valve 2 installed on the cover body 1 .

[0068] like Figure 2 As shown, the exhaust valve 2 includes a body 21 and a valve core 22. The body 21 has a first cavity 213, a first exhaust port 215 and a first air inlet 218a, and the first exhaust port 215 and the first air inlet 218a are both connected to the first cavity 213. The valve core 22 is located in the first cavity 213 and can move in the first cavity 213 along the height direction of the exhaust valve 2, thereby blocking or opening the first air inlet 218a. In addition, the exhaust valve 2 also includes an exhaust cover 24, which covers the upper part of the body 21 and is connected to the body 21. The exhaust cover 24 has a second cavity 241a, and the first cavity 213 is connected to the second cavity 241a through the first exhaust port 215 provided on the body 21. The exhaust cover 24 also has a second exhaust port 242b, and the second exhaust port 242b is connected to the outside and the second cavity 241a. Therefore, when the valve core 22 opens the first air inlet 218a, the first air inlet 218a is connected to the outside through the first cavity 213, the first exhaust port 215, the second cavity 241a, and the second exhaust port 242b.

[0069] When the exhaust valve 2 is installed on the container cover of the cooking container, and the cooking container is heated and used to generate steam, the pressure in the container enters the exhaust valve 2 through the first air inlet 218a. When the pressure in the container is less than the weight of the valve core 22 and other components installed on the valve core 22, the valve core 22 blocks the first air inlet 218a under the action of gravity, thereby ensuring the overall sealing of the cooking container. When the pressure in the container is greater than the weight of the valve core 22 and other components installed on the valve core 22, the valve core 22 is lifted up under the action of the steam flowing to the first air inlet 218a, releasing the sealing of the valve core 22 on the first air inlet 218a, so that the steam in the container can enter the first cavity 213 through the first air inlet 218a, and the steam entering the first cavity 213 can also enter the second cavity 241a of the exhaust cover 24 through the first exhaust port 215, and go out to the outside through the second exhaust port 242b of the exhaust cover 24, thereby reducing the pressure in the container and ensuring the safety of the cooking container.

[0070] At the same time, compared with the steam entering the pressure limiting valve from the first air inlet 218a being directly discharged from the exhaust port provided on the body 21, in this embodiment, the steam entering the pressure limiting valve from the first air inlet 218a first enters the second cavity 241a from the first cavity 213, and then is discharged from the second exhaust port 242b of the second cavity 241a to the outside, the second cavity 241a can play a buffering role for the high-speed jet steam, reduce the flow rate of the steam, and the inner wall of the second cavity 241a can play a condensing role for the steam, and part of the steam continues to condense in the second cavity 241a, reducing the amount of steam discharged from the second exhaust port 242b. When the flow rate and amount of steam discharged from the second exhaust port 242b are reduced, the risk of steam splashing during the exhaust process can be reduced, and the safety of the exhaust valve 2 and the cooking container can be improved. At the same time, during the exhaust process, the inner wall of the second cavity 241a can also play a role in sound insulation, thereby reducing the noise during the exhaust process of the exhaust valve 2 and improving the user experience.

[0071] Moreover, if Figure 3As shown, the axis of the first exhaust port 215 connecting the first cavity 213 and the second cavity 241a is the first axis L1, and the axis of the second exhaust port 242b connecting the second cavity 241a and the outside is the second axis L2. The first axis L1 and the second axis L2 are located on different straight lines (the two are not colinear), that is, there is a preset angle between the first axis L1 and the second axis L2, and the two are not parallel; or, the first axis L1 and the second axis L2 are staggered and parallel to each other. At this time, the steam entering the second cavity 241a from the first cavity 213 through the first exhaust port 215 cannot be discharged directly from the second exhaust port 242b, but needs to be discharged from the second exhaust port 242b after detouring in the second cavity 241a, so that the steam stays in the second cavity 241a for a longer time, further promotes the condensation of steam in the second cavity 241a, and further reduces the flow rate of steam. At the same time, the food that enters the second cavity 241a along with the steam needs to go around in the second cavity 241a before being discharged from the second exhaust port 242b, thereby further reducing the risk of food splashing.

[0072] In a specific embodiment, the body 21 may include a valve body and a first exhaust pipe 218, the first exhaust pipe 218 is installed on the valve body, and the first exhaust pipe 218 has an inlet 218b and an outlet arranged opposite to each other, one end of the outlet of the first exhaust pipe 218 extends into the first cavity 213, one end of the inlet 218b of the first exhaust pipe 218 is located outside the first cavity 213, and the outlet of the first exhaust pipe 218 is the first air inlet 218a of the exhaust valve 2 described above. Figure 1 As shown, the first exhaust pipe 218 can be installed on the cover body 1, and the installation method includes but is not limited to fixedly connecting or detachably connecting with the first exhaust pipe 218 through the connection hole on the cover body 1. At this time, the inlet 218b of the first exhaust pipe 218 is located on the side of the cover body 1 away from the valve body, and is connected to the container body of the cooking container. The valve body can also be installed on the cover body 1, and the installation method includes but is not limited to fixed installation by welding or the like, or detachable installation by bolt connection or clamping.

[0073] In other embodiments, the first air inlet 218a may also be directly provided on the body 21 , specifically, an opening is provided on the bottom wall of the body 21 to form the first air inlet 218a. That is, in this embodiment, the body 21 may not include the first exhaust pipe 218 .

[0074] The following description takes the example that the body 21 includes a valve body and a first exhaust pipe 218 .

[0075] In a specific embodiment, Figure 3As shown, the preset angle between the first axis L1 of the first exhaust port 215 and the second axis L2 of the second exhaust port 242b is 80°-100°. For example, the preset angle is 80°, 85°, 90°, 95°, 100°, etc. Figure 3 In the illustrated embodiment, the first axis L1 of the first exhaust port 215 is perpendicular to the second axis L2 of the second exhaust port 242b, that is, the preset angle between the first axis L1 and the second axis L2 is 90°. At this time, when steam and food enter the second cavity 241a from the first exhaust port 215, they need to detour at a larger angle to be discharged from the second exhaust port 242b to the outside, thereby further reducing the risk of splashing.

[0076] In a specific embodiment, Figure 3 As shown, the first exhaust port 215 can be disposed on the first top wall 217 of the first cavity 213, and the second exhaust port 242b can be disposed on the side wall of the exhaust cover 24, so that the first axis L1 of the first exhaust port 215 and the second axis L2 of the second exhaust port 242b are not colinear. The first exhaust port 215 can be realized by arranging an opening on the first top wall 217, and the second exhaust port 242b can be realized by arranging an opening on the side wall of the exhaust cover 24.

[0077] In another specific embodiment, Figure 3 and Figure 4 As shown, the exhaust cover 24 includes a valve cover 241 and a second exhaust pipe 242 connected to the valve cover 241. The connection methods of the valve cover 241 and the second exhaust pipe 242 include but are not limited to clamping, welding, bonding, embedding connection, etc. The valve cover 241 has a second cavity 241a, and the valve cover 241 covers the top of the first exhaust port 215 of the valve body and is connected to the valve body. The second exhaust pipe 242 has a second air inlet 242a and a second exhaust port 242b that are arranged opposite to each other. The second air inlet 242a is located in the second cavity 241a, and the second exhaust port 242b extends out of the second cavity 241a and communicates with the outside.

[0078] In this embodiment, when the exhaust cover 24 includes a second exhaust pipe 242, the positions of the second air inlet 242a and the second exhaust port 242b can be conveniently changed by changing the length of the second exhaust pipe 242 and the connection position of the second exhaust pipe 242 and the valve cover 241, so as to enable the steam and food to bypass the second cavity 241a before being discharged from the second exhaust port 242b, and the bypass path can be changed, thereby further reducing the risk of steam and food splashing.

[0079] In some embodiments, the second exhaust pipe 242 can be a bent structure, for example, an L-shaped structure, so that the second exhaust port 242b is bent downward relative to the second air inlet 242a, that is, bent toward the valve body. At this time, the risk of steam and food splashing can be further reduced.

[0080] In a specific embodiment, the flow cross-sectional area of ​​the first exhaust port 215 is S1, and the flow cross-sectional area of ​​the second air inlet 242a is S2. That is, the air inlet area of ​​the steam entering the second cavity 241a from the first cavity 213 is S1, and the exhaust area of ​​the steam entering the second exhaust pipe 242 from the second cavity 241a is S2. When S1≤S2, the exhaust area of ​​the steam discharged from the second cavity 241a through the second exhaust pipe 242 is not less than the air inlet area entering the second cavity 241a, thereby facilitating the smooth exhaust of the steam in the second cavity 241a and improving the safety of the exhaust valve 2.

[0081] Specifically, if Figure 4 As shown, the valve cover 241 has a first side wall 241b. Compared with the second exhaust pipe 242 connected to the second top wall 241c of the valve cover 241, when the second exhaust pipe 242 is connected to the first side wall 241b, it is possible to conveniently achieve a preset angle between the first axis of the first exhaust port 215 and the second axis L2 of the second exhaust port 242b, thereby reducing the risk of steam and food splashing and realizing side exhaust of the exhaust valve 2.

[0082] It should be noted that the second cavity 241a can be a cylinder, a cuboid, a cone or other structures, as long as a cavity for surrounding the first exhaust port 215 is formed inside the valve cover 241. When the valve cover 241 is a cylinder or a cone, the second exhaust pipe 242 is connected to any position of the side wall of the valve cover 241 along the circumferential direction; when the valve cover 241 is a cuboid, the second exhaust pipe 242 can be connected to any one of the four side walls of the valve cover 241.

[0083] In some embodiments, Figure 3 As shown, the path of the steam and food in the first cavity 213 entering the second air inlet 242a from the first exhaust port 215 is as follows: Figure 3 As shown by the arrow in , at this time, the first exhaust port 215 is located between the second air inlet 242a and the second exhaust port 242b, and the steam and food discharged from the first exhaust port 215 are blocked by the tube wall of the second exhaust pipe 242, and can then enter the first air inlet 218a, so that the steam and food bypass in the second cavity 241a, and the tube wall of the second exhaust pipe 242 can further reduce the flow rate of the steam and food, further reducing the risk of steam and food splashing.

[0084] In a specific embodiment, Figure 3 and Figure 5 As shown, the first top wall 217 of the valve body has an extension portion 214, and the extension portion 214 is located in the second cavity 241a. The first exhaust port 215 is arranged at the extension portion 214. The extension portion 214 can make the first exhaust port 215 close to the second air inlet 242a of the second exhaust pipe 242, and the distance between the first exhaust port 215 and the second air inlet 242a along the height direction of the exhaust valve 2 can be adjusted by controlling the extension length of the extension portion 214. In addition, the extension portion 214 can also guide the steam entering the second cavity 241a from the first cavity 213, that is, it can promote the steam to enter the second air inlet 242a, thereby promoting exhaust.

[0085] Specifically, if Figure 3 As shown, the first exhaust port 215 has a second side wall 215a, and the minimum distance between the second side wall 215a and the second air inlet 242a is D1, 2mm≤D1≤5mm. The minimum distance between the second air inlet 242a and the first side wall 241b of the valve cover 241 is D2.

[0086] Wherein, D1 is used to characterize the detour distance of steam from the first exhaust port 215 to the second air inlet 242a. For the valve cover 241 of the same size, when D1 is too large, the minimum distance D2 between the second air inlet 242a and the first side wall 241b of the valve cover 241 is too small, and there is a risk of affecting the steam entering the second air inlet 242a and affecting the exhaust; when D1 is too small, the detour distance of steam from the first exhaust port 215 to the second air inlet 242a is too small, and the flow rate of steam entering the second air inlet 242a cannot be effectively reduced, resulting in poor anti-splashing and noise reduction effects of the exhaust valve 2. In this embodiment, when 2mm≤D1≤5mm, the steam can smoothly enter the second air inlet 242a, and the flow rate of the steam entering the second air inlet 242a can be effectively reduced, thereby achieving normal exhaust, reducing the risk of splashing during exhaust, and reducing exhaust noise.

[0087] For example, D1 can be 2 mm, 3 mm, 4 mm, 5 mm, etc.

[0088] In the above embodiments, Figure 4 As shown, the second exhaust port 242b of the second exhaust pipe 242 extends toward the outside of the second cavity 241a, so as to guide the steam to the outside.

[0089] In the above embodiments, Figure 3 As shown, the exhaust cover 24 is detachably connected to the body 21 , specifically, the exhaust cover 24 is detachably connected to the valve body, so that the exhaust cover 24 can be removed from the body 21 , thereby facilitating cleaning of the second cavity 241a of the exhaust cover 24 and improving the cleanliness of the exhaust valve 2 .

[0090] Specifically, if Figure 5 As shown, the first top wall 217 of the valve body is provided with a mounting portion 216, and the mounting portion 216 is detachably connected to the exhaust cover 24. The mounting portion 216 can be provided with an internal thread, and the outer wall of the exhaust cover 24 can be provided with an external thread, so that the exhaust cover 24 is threadedly connected to the mounting portion 216 provided on the valve body.

[0091] In a specific embodiment, Figure 5 As shown, the valve body may include a first valve body 211 and a second valve body 212 . The first valve body 211 and the second valve body 212 are sleeved with each other and are detachably connected to form the first cavity 213 .

[0092] In this embodiment, the first valve body 211 and the second valve body 212 are detachably connected, which is convenient for installation and replacement of the first valve body 211 and the second valve body 212, and can facilitate cleaning of residual food in the first cavity 213, thereby improving the cleanliness of the first cavity 213.

[0093] In some embodiments, Figure 5 As shown, the first valve body 211 and the second valve body 212 can be threadedly connected, wherein the first valve body 211 can be provided with external threads, and the second valve body 212 can be provided with external threads at the corresponding position, or the inner wall of the first valve body 211 can be provided with external threads, and the outer wall of the second valve body 212 can be provided with internal threads at the corresponding position. In other embodiments, the first valve body 211 and the second valve body 212 can also be connected in other detachable ways, such as snap connection.

[0094] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An exhaust valve, characterized in that: The exhaust valve (2) comprises: A body (21), the body (21) having a first cavity (213), a first air inlet (218a) and a first air outlet (215), the first air inlet (218a) and the first air outlet (215) both being in communication with the first cavity (213); a valve core (22), the valve core (22) being located in the first cavity (213) and being used for blocking or opening the first air inlet (218a); an exhaust cover (24), the exhaust cover (24) covering the body (21) and connected to the body (21), the exhaust cover (24) having a second cavity (241a), and the first exhaust port (215) communicating with the first cavity (213) and the second cavity (241a); The exhaust cover (24) further comprises a second exhaust port (242b) communicating with the second cavity (241a) and the outside, and the axis of the second exhaust port (242b) and the axis of the first exhaust port (215) are located on different straight lines.

2. The exhaust valve according to claim 1, characterized in that: The angle between the axis of the first exhaust port (215) and the axis of the second exhaust port (242b) is 80°-100°.

3. The exhaust valve according to claim 1, characterized in that: The exhaust cover (24) comprises a valve cover (241) and a second exhaust pipe (242) connected to the valve cover (241); the valve cover (241) has the second cavity (241a); the second exhaust pipe (242) has a second air inlet (242a) and the second exhaust port (242b); the second air inlet (242a) is located in the second cavity (241a).

4. The exhaust valve according to claim 3, characterized in that: The valve cover (241) has a first side wall (241b), and the second exhaust pipe (242) is connected to the first side wall (241b).

5. The exhaust valve according to claim 4, characterized in that: The first exhaust port (215) is located between the second air inlet (242a) and the second exhaust port (242b).

6. The exhaust valve according to claim 5, characterized in that The first exhaust port (215) has a second side wall (215a), and the minimum distance between the second side wall (215a) and the second air inlet (242a) is D1, 2mm≤D1≤5mm.

7. The exhaust valve according to any one of claims 3 to 6, characterized in that: The flow cross-sectional area of ​​the first exhaust port (215) is S1, and the flow cross-sectional area of ​​the second air inlet (242a) is S2, where S1≤S2.

8. The exhaust valve according to any one of claims 1 to 6, characterized in that: The main body (21) has an extension portion (214), the extension portion (214) is located in the second cavity (241a), and the first exhaust port (215) is arranged on the extension portion (214).

9. The exhaust valve according to any one of claims 1 to 6, characterized in that: The exhaust cover (24) is detachably connected to the body (21).

10. A container cover, characterized in that: The container cover comprises: Cover body (1); An exhaust valve (2), the exhaust valve (2) being mounted on the cover body (1); Wherein, the exhaust valve (2) is the exhaust valve (2) according to any one of claims 1 to 9.

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