Steam oven drainage device and steam oven

Abstract

The utility model relates to a steam oven drainage device and a steam oven, the steam oven drainage device comprises a drainage piece, a switch valve and a water tank, the drainage piece is used for being arranged on the bottom wall of an inner container, and the drainage piece is provided with a drainage channel with one end communicated with the inner container; the switch valve is arranged at the end, communicated with the inner container, of the drainage channel and can rotate relative to the drainage piece so as to open or close the drainage channel. The water tank is used for being arranged below the inner container and communicates with the end, away from the inner container, of the drainage channel. In the cooking process, the switch valve closes the drainage channel; after cooking is completed, water vapor in the inner container is condensed and flows to the bottom wall of the inner container, the switch valve is controlled to rotate relative to the drainage part to open the drainage channel, condensate water on the bottom wall of the inner container flows into the water tank through the drainage channel to be collected, it is avoided that residual water remains in the inner container for a too long time, peculiar smell is generated or the taste of food is affected, and manpower is saved; the steam oven drainage device is short in drainage time, simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking equipment, in particular to a steaming oven drainage device and a steaming oven. Background Art

[0002] After the steam oven is used, the water vapor in the inner pot will condense and remain on the bottom wall, forming residual water accumulation. In order to prevent the residual water from remaining for a long time and producing odor, users usually need to wipe the residual water with paper towels or rags many times, which is time-consuming and laborious.

[0003] In the related prior art, some steam ovens also have a built-in drying function, but the drying process takes a long time and has a high electricity cost. Utility Model Content

[0004] Based on this, it is necessary to provide a steam oven drainage device and a steam oven to address the above problems, so as to avoid residual water in the inner tank, and the cost is low.

[0005] The utility model provides a steam oven drainage device, which is used to be arranged in the steam oven, and the steam oven includes an inner container, including: a drainage member, which is used to be arranged on the bottom wall of the inner container, and the drainage member is provided with a drainage channel whose one end is connected to the inner container; a switch valve, which is arranged at the end of the drainage channel connected to the inner container and can be rotated relative to the drainage member to open / close the drainage channel; and a water tank, which is used to be arranged below the inner container, and the water tank is connected to the end of the drainage channel away from the inner container.

[0006] In the above-mentioned steam oven drainage device, during the cooking process, the switch valve is controlled to close the drainage channel, which effectively reduces the loss of steam and heat in the inner pot and ensures the working efficiency of the steam oven; after cooking is completed, the water vapor in the inner pot condenses and flows to the bottom wall of the inner pot, and the switch valve is controlled to rotate relative to the drainage member to open the drainage channel, so that the condensed water on the bottom wall of the inner pot flows through the drainage channel to the water tank for collection, thereby preventing the residual water from remaining in the inner pot for too long and generating odor or affecting the taste of food, saving manpower, and shortening the drainage time. In addition, the steam oven drainage device has a simple structure and low cost.

[0007] In one of the embodiments, the switch valve is detachably connected to the drainage member.

[0008] This arrangement makes it easy for users to clean the switch valve and the drainage channel after disassembly, and the switch valve can be repaired or replaced separately to reduce costs.

[0009] In one of the embodiments, the steam oven drainage device further includes a filter element detachably disposed in the drainage channel, and the filter element is located on a side of the switch valve close to the water tank.

[0010] With this arrangement, when the switch valve is in the open state, food residues remaining on the bottom wall of the inner tank flow into the drainage channel together with the remaining water and remain on the filter element, preventing food residues from entering the water tank or clogging the drainage channel, making cleaning easy.

[0011] In one embodiment, the filter element includes a mounting portion and a filtering portion, the mounting portion is disposed at one end of the drainage channel connected to the inner tank and is in contact with the inner wall of the drainage channel, and the filtering portion is disposed at one end of the mounting portion close to the water tank; the switch valve is disposed in the mounting portion and can rotate relative to the mounting portion.

[0012] With such arrangement, the mounting portion can prevent the remaining water from flowing into the water tank through the gap between the filter element and the inner wall of the drainage channel, and the switch valve is arranged in the mounting portion so that the remaining water entering the drainage channel can be filtered by the filter portion.

[0013] In one embodiment, the drainage component is provided with a lap groove at one end facing the inner tank, and the filter component also includes a lap portion provided at one end of the mounting portion away from the filter portion, and in the assembled state, the lap portion overlaps the bottom wall of the lap groove.

[0014] With such arrangement, the filter element can be stably overlapped on the bottom wall of the overlap groove through the overlap portion, thereby ensuring the stability and reliability of the filter element on the drainage element, and the filter element is easy to disassemble and assemble.

[0015] In one embodiment, the switch valve includes a sealing layer and metal layers stacked on both sides of the sealing layer, the size of the metal layer is smaller than the size of the sealing layer, and the sealing layer has an interference fit with the inner wall of the drainage channel; and / or, in a closed state, the top surface of the switch valve is lower than the top surface of the drainage component.

[0016] With this arrangement, the sealing layer is used to ensure the stability of the switch valve in the drainage channel and the sealing performance in the closed state, and the metal layer is used to ensure the strength and reliability of the switch valve; the top surface of the switch valve is lower than the top surface of the drainage component so that the switch valve can accumulate residual water.

[0017] In one of the embodiments, the water tank includes a box body and a sealing member, the box body is provided with a water inlet and a water outlet, the water inlet is communicated with the drainage channel, and the sealing member is openably and closably provided at the water outlet.

[0018] With such arrangement, the sealing member is controlled to open the water outlet, so that the water in the tank can be discharged from the water inlet and the water outlet at the same time, thereby improving the drainage efficiency of the water tank.

[0019] In one embodiment, the sealing member includes a fixing portion and a sealing portion which are connected to each other, the fixing portion is disposed on the box body and can rotate relative to the box body, and the sealing portion is detachably connected to the box body and can cover the water outlet.

[0020] With such arrangement, the opening and closing of the sealing part is simple, and the sealing part is always connected to the box body, thereby avoiding the loss of parts.

[0021] The utility model also provides a steam oven, comprising an inner container and the steam oven drainage device as described above.

[0022] In one of the embodiments, the steam oven further comprises a heating element disposed on the bottom wall of the inner pot, an assembly opening is provided at the center of the heating element, and the drainage element is detachably disposed in the assembly opening.

[0023] In this arrangement, the heating element is arranged at the center of the bottom wall of the inner container, and the drainage element is arranged at the center of the heating element, so that the remaining water on the bottom wall of the inner container can be discharged from the drainage element. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are 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 creative work.

[0025] Figure 1 It is a partial three-dimensional structural schematic diagram of a steam oven according to one embodiment of the utility model;

[0026] Figure 2 The utility model provides Figure 1 Schematic diagram of the three-dimensional structure of the drainage device of the steam oven;

[0027] Figure 3 The utility model provides Figure 2 A schematic diagram of a partial explosion structure of a steam oven drainage device;

[0028] Figure 4 The utility model provides Figure 2 Schematic diagram of the three-dimensional structure of the middle box.

[0029] Figure numerals: 1. Drainage component; 11. Drainage channel; 12. Overlap groove; 2. Switch valve; 21. Sealing layer; 22. Metal layer; 3. Water tank; 31. Box body; 311. Water inlet; 312. Water outlet; 313. Fixing port; 32. Sealing component; 321. Fixing portion; 322. Sealing portion; 4. Filter component; 41. Installation portion; 42. Filter portion; 43. Overlap portion; 5. Inner tank; 6. Heating component; 61. Assembly port; 7. Drain pipe. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0035] After the steam oven is used, the water vapor in the inner pot will condense and remain on the bottom wall, forming residual water accumulation. In order to prevent the residual water from remaining for a long time and producing odor, the user usually needs to wipe the residual water with a paper towel or rag many times, which is time-consuming and laborious. In the related prior art, some steam ovens also have a drying function, but the drying time is long, usually 5-10 minutes, and the electricity cost is high.

[0036] In order to solve the above problems, Figures 1 to 4 As shown, the utility model first provides a steam oven drainage device, which is used to be arranged in the steam oven. The steam oven includes an inner tank 5. The steam oven drainage device can avoid residual water in the inner tank 5 and has low cost.

[0037] like Figures 1 to 3 As shown, specifically, the drainage device of the steam oven includes a drainage component 1, a switch valve 2 and a water tank 3, wherein: the drainage component 1 is used to be arranged on the bottom wall of the inner pot 5, and the drainage component 1 is provided with a drainage channel 11 whose one end is connected to the inner pot 5; the switch valve 2 is arranged at the end of the drainage channel 11 connected to the inner pot 5, and can be rotated relative to the drainage component 1 to open or close the drainage channel 11; the water tank 3 is used to be arranged below the inner pot 5, and the water tank 3 is connected to the end of the drainage channel 11 away from the inner pot 5.

[0038] In the drainage device of the steam oven provided by the embodiment of the utility model, during the cooking process, the switch valve 2 is controlled to close the drainage channel 11, which effectively reduces the steam and heat loss in the inner pot 5 and ensures the working efficiency of the steam oven; after cooking is completed, the water vapor in the inner pot 5 condenses and flows to the bottom wall of the inner pot 5, and the switch valve 2 is controlled to rotate relative to the drainage member 1 to open the drainage channel 11, so that the condensed water on the bottom wall of the inner pot 5 flows through the drainage channel 11 to the water tank 3 for collection, thereby preventing the residual water from remaining in the inner pot 5 for too long and generating odor or affecting the taste of food. The user does not need to wipe it with paper towels or rags many times, which saves manpower and shortens the drainage time. In addition, the drainage device of the steam oven has a simple structure and low cost.

[0039] When it is necessary to control the switch valve 2 to rotate relative to the drain member 1, the user can press the edge of the switch valve 2 with a finger or with the help of an external tool to make the switch valve 2 rotate relative to the drain member 1. The operation is simple.

[0040] like Figures 2 to 3As shown, in one embodiment, the switch valve 2 is detachably connected to the drain member 1, so that the user can clean the switch valve 2 and the drain channel 11 after disassembly, and the switch valve 2 can be repaired or replaced separately when the switch valve 2 is damaged, so as to reduce costs.

[0041] like Figure 3 As shown, the switch valve 2 includes a sealing layer 21 and metal layers 22 respectively stacked on both sides of the sealing layer 21, the size of the metal layer 22 is smaller than the size of the sealing layer 21, and the sealing layer 21 is interference fit with the inner wall of the drainage channel 11. Among them, the sealing layer 21 can be set to a material with elasticity such as a silicone member, a rubber member, etc., so that when the user applies an external force to the switch valve 2, the switch valve 2 can rotate with any diameter as the axis to open or close the drainage channel 11. The metal layer 22 is used to ensure the strength and reliability of the switch valve 2, and the size of the metal layer 22 is smaller than the size of the sealing layer 21, so as to avoid the metal layer 22 and the inner wall of the drainage channel 11 interfering with each other and affecting the rotation of the switch valve 2 relative to the drainage member 1. The sealing layer 21 is interference fit with the inner wall of the drainage channel 11 to ensure the stability of the switch valve 2 in the drainage channel 11 and prevent the switch valve 2 from sliding along the extension direction of the drainage channel 11 or accidentally rotating relative to the drainage component 1; at the same time, it can also ensure the sealing of the switch valve 2 in the closed state and prevent residual water from flowing into the water tank 3 through the gap between the switch valve 2 and the inner wall of the drainage channel 11.

[0042] In another embodiment, the switch valve 2 is not removable, and the switch valve 2 is connected to the drain member 1 via a rotating shaft, so that the switch valve 2 can rotate relative to the drain member 1 via the rotating shaft. In addition, when the switch valve 2 is not removable, it can also include a sealing layer 21 and two metal layers 22 stacked with the sealing layer 21 to ensure the sealing and stability of the switch valve 2 in the closed state.

[0043] In one embodiment, in the closed state, the top surface of the switch valve 2 is lower than the top surface of the drainage member 1. This allows the switch valve 2 to accumulate residual water. When the switch valve 2 is controlled to rotate to the open state, the residual water accumulated on the switch valve 2 can directly flow into the drainage channel 11, resulting in a better drainage effect. Of course, in other embodiments, in the closed state, the top surface of the switch valve 2 can also be flush with the top surface of the drainage member 1.

[0044] like Figures 2 to 3As shown, since some food residues may fall from the baking tray during cooking in the steam oven, in order to prevent the food residues from blocking the drainage channel 11, the steam oven drainage device also includes a filter 4 detachably arranged in the drainage channel 11, and the filter 4 is located on the side of the switch valve 2 close to the water tank 3. When the switch valve 2 is in a closed state, the food residue will not fall on the filter 4, and the user can first clean up the large pieces of food residues that fall on the bottom wall of the inner tank 5 and then drain the remaining water, and the filter 4 is not exposed to ensure a neat appearance. When the switch valve 2 is in an open state, the small pieces of food residues remaining on the bottom wall of the inner tank 5 flow into the drainage channel 11 together with the remaining water, and the remaining water can pass through the filter 4 and flow into the water tank 3, and the food residues remain on the filter 4, preventing the food residues from entering the water tank 3 or blocking the drainage channel 11. The user can sequentially disassemble the switch valve 2 and the filter 4 and then clean the food residues on the filter 4, which is convenient to clean.

[0045] like Figure 3 As shown, the filter element 4 includes a mounting portion 41 and a filter portion 42. The mounting portion 41 is arranged at one end of the drainage channel 11 that is connected to the inner tank 5 and is fitted with the inner wall of the drainage channel 11. The filter portion 42 is arranged at one end of the mounting portion 41 that is close to the water tank 3. The switch valve 2 is arranged in the mounting portion 41 and can rotate relative to the mounting portion 41. The mounting portion 41 fits the inner wall of the drainage channel 11 to prevent residual water or food residue from flowing into the water tank 3 through the gap between the filter element 4 and the inner wall of the drainage channel 11. The switch valve 2 is arranged in the mounting portion 41, so that when the switch valve 2 is in an open state, all residual water entering the drainage channel 11 can be filtered by the filter portion 42. Among them, the filter portion 42 can be set to a grid-like structure as shown in the figure to ensure the filtering effect and facilitate cleaning.

[0046] like Figures 2 to 3 As shown, when the switch valve 2 is disposed in the mounting portion 41 , the sealing layer 21 of the switch valve 2 can be interference fit with the inner wall of the mounting portion 41 to ensure the stability and sealing of the switch valve 2 in the mounting portion 41 .

[0047] like Figure 3 As shown, in one embodiment, the drainage member 1 is provided with a lap groove 12 at one end facing the inner tank 5, and the filter 4 further comprises a lap portion 43 provided at one end of the mounting portion 41 away from the filter portion 42, and in the assembled state, the lap portion 43 overlaps the bottom wall of the lap groove 12. The filter 4 can be stably overlapped with the bottom wall of the lap groove 12 through the lap portion 43, thereby ensuring the stability and reliability of the filter 4 on the drainage member 1, preventing residual water or food residue from flowing into the water tank 3 through the gap between the filter 4 and the inner wall of the drainage channel 11, and the filter 4 is easy to disassemble and assemble, and is convenient for user operation.

[0048] Of course, in other embodiments, the filter element 4 may also be detachably connected to the drain element 1 by other means such as snap connection, screw connection, etc., as long as it is convenient for the user to disassemble and clean the filter element 4, the embodiment of the utility model does not make specific limitations here.

[0049] like Figure 2 and Figure 4 As shown, the water tank 3 includes a box body 31 and a sealing member 32. The box body 31 is provided with a water inlet 311 and a water outlet 312. The water inlet 311 is connected to the drainage channel 11, and the sealing member 32 is openably provided at the water outlet 312. During the water collection process, the sealing member 32 covers the water outlet 312 to seal the water outlet 312. After the water collection is completed, or when the water tank 3 is full of water, the sealing member 32 is controlled to open the water outlet 312 so that the water in the box body 31 is discharged from the water outlet 312. Of course, the water tank 3 can also be separated from the drainage member 1, and the water outlet 312 can be opened so that the water in the box body 31 is discharged from the water inlet 311 and the water outlet 312 at the same time, so as to improve the drainage efficiency of the water tank 3.

[0050] like Figure 2 As shown, the steam oven drainage device also includes a drainage pipe 7, the two ends of which are respectively connected to the drainage channel 11 and the water inlet 311, so that there can be a certain distance between the water tank 3 and the drainage component 1 to avoid interference between the water tank 3 and other components inside the steam oven.

[0051] like Figure 2 and Figure 4 As shown, the sealing member 32 includes a fixing portion 321 and a sealing portion 322 connected to each other. The fixing portion 321 is arranged on the housing 31 and can rotate relative to the housing 31. The sealing portion 322 is detachably connected to the housing 31 and can cover the water outlet 312. When the water tank 3 needs to be drained, the sealing portion 322 is controlled to open the water outlet 312, and the sealing member 32 is controlled to rotate relative to the housing 31 around the axis of the fixing portion 321. After the drainage is completed, the sealing member 32 is controlled to rotate relative to the housing 31 around the axis of the fixing portion 321 to a position where the sealing portion 322 corresponds to the water outlet 312, and the sealing portion 322 is controlled to cover the water outlet 312. The opening and closing method of the sealing portion 322 is simple, and the sealing member 32 is always connected to the housing 31 to avoid the loss of parts.

[0052] Among them, the sealing part 32 can be set to a flexible material such as a silicone part, a rubber part, etc., so that the user can control the sealing part 322 to open or close the water outlet 312, and at the same time, it can also ensure the sealing performance of the sealing part 322 to the water outlet 312 in the closed state.

[0053] like Figure 2 and Figure 4As shown, the outer wall of the box body 31 is provided with a fixing opening 313, and the fixing part 321 is provided in the fixing opening 313 and can rotate relative to the box body 31. The fixing opening 313 can be a blind hole or a through hole. When the fixing opening 313 is a through hole, the fixing part 321 needs to seal the fixing opening 313 to prevent water in the box body 31 from leaking from the fixing opening 313.

[0054] like Figure 1 As shown, an embodiment of the utility model further provides a steam oven, comprising an inner pot 5 and the steam oven drainage device described above. In one embodiment, the drainage member 1 is directly arranged on the bottom wall of the inner pot 5, and the drainage member 1 can be detachably connected to the bottom wall of the inner pot 5 by means of screw connection, clamping connection, etc., so that the user can disassemble and clean, replace or repair the drainage member 1, and in the assembled state, it is necessary to ensure the sealing between the drainage member 1 and the bottom wall of the inner pot 5 to prevent the residual water from flowing to the bottom of the inner pot 5 through the gap between the drainage member 1 and the bottom wall of the inner pot 5. Alternatively, the drainage member 1 can also be fixedly connected to the bottom wall of the inner pot 5. It can be understood that the top surface of the drainage member 1 needs to be flush with the bottom wall of the inner pot 5 or lower than the bottom wall of the inner pot 5 to ensure that the residual water on the bottom wall of the inner pot 5 can flow into the drainage channel 11 normally.

[0055] In another embodiment, the steam oven further comprises a heating element 6 disposed on the bottom wall of the inner pot 5, a mounting opening 61 is provided at the center of the heating element 6, and the drain element 1 is detachably disposed in the mounting opening 61. The drain element 1 can be detachably connected to the heating element 6 in the mounting opening 61 by screw connection, clamping connection, etc., and the sealing between the drain element 1 and the inner wall of the mounting opening 61 needs to be ensured. The heating element 6 is disposed at the center of the bottom wall of the inner pot 5, and the drain element 1 is disposed at the center of the heating element 6, so that the residual water remaining on the bottom wall of the inner pot 5 can be discharged from the drain element 1. It can be understood that the top surface of the heating element 6 can be flush with or lower than the bottom wall of the inner pot 5, and the top surface of the drain element 1 can be flush with or lower than the top surface of the heating element 6, so as to ensure that the residual water on the bottom wall of the inner pot 5 can normally flow to the heating element 6 and normally flow from the heating element 6 into the drainage channel 11.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A steam oven drainage device, used to be arranged in a steam oven, the steam oven comprising an inner container (5), characterized in that: include: A drainage member (1) is used to be arranged on the bottom wall of the inner container (5), and the drainage member (1) is provided with a drainage channel (11) with one end communicating with the inner container (5); an on-off valve (2), which is arranged at one end of the drainage channel (11) communicating with the inner tank (5) and is rotatable relative to the drainage member (1) to open / close the drainage channel (11); and A water tank (3) is used to be arranged below the inner tank (5), and the water tank (3) is connected to an end of the drainage channel (11) away from the inner tank (5).

2. The steam oven drainage device according to claim 1, characterized in that: The switch valve (2) is detachably connected to the drainage member (1).

3. The steam oven drainage device according to claim 2, characterized in that: The steam oven drainage device further comprises a filter element (4) detachably arranged in the drainage channel (11); the filter element (4) is located on a side of the switch valve (2) close to the water tank (3).

4. The steam oven drainage device according to claim 3, characterized in that: The filter element (4) comprises a mounting portion (41) and a filtering portion (42); the mounting portion (41) is arranged at one end of the drainage channel (11) communicating with the inner tank (5) and is in contact with the inner wall of the drainage channel (11); and the filtering portion (42) is arranged at one end of the mounting portion (41) close to the water tank (3); The switch valve (2) is arranged in the mounting portion (41) and is rotatable relative to the mounting portion (41).

5. The steam oven drainage device according to claim 4, characterized in that: The drainage member (1) is provided with a lap joint groove (12) at one end facing the inner tank (5), and the filter member (4) further comprises a lap joint portion (43) arranged at one end of the mounting portion (41) away from the filter portion (42); in the assembled state, the lap joint portion (43) is lap jointed with the bottom wall of the lap joint groove (12).

6. The steam oven drainage device according to claim 1, characterized in that: The switch valve (2) comprises a sealing layer (21) and metal layers (22) respectively stacked on both sides of the sealing layer (21), the size of the metal layer (22) is smaller than the size of the sealing layer (21), and the sealing layer (21) is interference-fitted with the inner wall of the drainage channel (11); and / or, In a closed state, the top surface of the switch valve (2) is lower than the top surface of the drainage member (1).

7. The steam oven drainage device according to claim 1, characterized in that: The water tank (3) comprises a tank body (31) and a sealing member (32); the tank body (31) is provided with a water inlet (311) and a water outlet (312); the water inlet (311) is communicated with the drainage channel (11); and the sealing member (32) is openably and closably arranged at the water outlet (312).

8. The steam oven drainage device according to claim 7, characterized in that: The sealing member (32) comprises a fixing portion (321) and a sealing portion (322) which are connected to each other; the fixing portion (321) is arranged on the box body (31) and is rotatable relative to the box body (31); the sealing portion (322) is detachably connected to the box body (31) and is capable of covering the water outlet (312).

9. A steam oven, characterized in that: It comprises an inner container (5) and a steam oven drainage device as claimed in any one of claims 1 to 8.

10. The steam oven according to claim 9, characterized in that: The steam oven further comprises a heating element (6) arranged on the bottom wall of the inner pot (5), an assembly opening (61) is provided at the center of the heating element (6), and the drainage element (1) is detachably arranged in the assembly opening (61).

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