CN219396985U - Lid subassembly and have its cooking utensil - Google Patents

Abstract

The utility model discloses a cover body component and a cooking utensil with the same, wherein the cover body component comprises: the cover body is provided with a steam channel, and the inner peripheral wall of the steam channel is provided with internal threads; the steam valve cover is arranged on the cover body in a lifting manner so as to open or close an outlet of the steam channel, and an external thread matched with the internal thread is arranged on the outer side wall of the steam valve cover; the driving assembly is used for driving the steam valve cover to rotate so as to lift relative to the cover body. According to the cover body assembly, the steam valve cover and the cover body can be connected, sealing between the steam valve cover and the steam channel can be realized, and the cooking effect is improved. In addition, can also realize the rising or descending of steam valve gap under drive assembly's drive through the cooperation of internal thread and external screw thread to realize opening or closing steam channel's export, adjust the pressure in the culinary art chamber, avoid eating the material and spill over, and can improve food culinary art effect.

Description

Lid subassembly and have its cooking utensil

Technical Field

The utility model relates to the technical field of cooking equipment, in particular to a cover body assembly and a cooking appliance with the same.

Background

In the related art, a cooking appliance such as an electric cooker has a risk of overflowing during cooking, and a scheme using a lifting valve is currently used to solve the problem of overflowing during cooking, and how to seal the lifting valve is a key problem for ensuring the cooking effect. If the sealing effect is good, the cooking process can bear positive pressure or negative pressure, and better cooking effect can be obtained, for example, the positive pressure can enable the cooking food material to be softer (boiling at higher temperature), the negative pressure can enable the cooking food material to be more fluffy (gas is less than normal pressure), and in addition, bubbles generated during boiling under the negative pressure condition are easier to break.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the cover body assembly, and the steam valve cover of the cover body assembly has good sealing effect, so that the cooking appliance has good cooking effect.

The utility model further provides a cooking appliance, which comprises the cover body assembly.

According to an embodiment of the utility model, a cover assembly includes: the cover body is provided with a steam channel, and the inner peripheral wall of the steam channel is provided with internal threads; the steam valve cover is arranged on the cover body in a lifting manner so as to open or close an outlet of the steam channel, and an external thread matched with the internal thread is arranged on the outer side wall of the steam valve cover; the driving assembly is used for driving the steam valve cover to rotate so as to ascend and descend relative to the cover body.

According to the cover body assembly provided by the embodiment of the utility model, the internal thread is arranged on the inner peripheral wall of the steam channel, the external thread matched with the internal thread is arranged on the outer side wall of the steam valve cover, so that the connection between the steam valve cover and the cover body can be realized, the sealing between the steam valve cover and the steam channel can be realized, the sealing of a cooking cavity can be realized, the positive pressure or the negative pressure can be born in the cooking process, the cooking effect is improved, in addition, the rising or the falling of the steam valve cover can be realized under the driving of the driving assembly through the matching of the internal thread and the external thread, the opening or the closing of the outlet of the steam channel can be realized, the pressure in the cooking cavity can be regulated, the overflow of food materials can be avoided, and the food cooking effect can be improved.

According to some embodiments of the utility model, the drive assembly comprises: the driving motor is arranged on the cover body; the gear is connected with an output shaft of the driving motor, a rack meshed with the gear is arranged on the peripheral wall of the steam valve cover, and the rack extends along the circumferential direction of the steam valve cover.

In some embodiments of the utility model, the rack is located on a side of the external thread that is adjacent to the steam channel inlet.

According to some embodiments of the utility model, the internal thread and the external thread are always matched during lifting of the steam valve cover.

According to some embodiments of the utility model, the steam valve cover comprises: the connecting side wall is annular, the connecting side wall is arranged in the steam channel in a lifting manner, and the external threads are arranged on the connecting side wall; the cover body is connected with one axial end of the connecting side wall and is used for opening or closing the outlet of the steam channel, the cover body is provided with an extension part exceeding the connecting side wall in the radial direction of the connecting side wall, and the extension part is suitable for being erected on the cover body when the cover body closes the outlet of the steam channel.

In some embodiments of the utility model, the cover is provided with a groove surrounding the steam channel, the groove is communicated with the steam channel, and the extension part is suitable for being arranged on the bottom wall of the groove.

In some embodiments of the utility model, at least a portion of the surface of the extension remote from the recess bottom wall is flush with the outer surface of the cover body when the cover body closes the outlet of the steam channel.

In some embodiments of the utility model, a gasket is provided between the extension and the cover.

According to some embodiments of the utility model, an outer surface of a portion of the steam valve cover opposite the steam channel has a handle portion.

The cooking utensil comprises the cover body assembly.

According to the cooking utensil provided by the embodiment of the utility model, the inner peripheral wall of the steam channel is provided with the inner threads, the outer side wall of the steam valve cover is provided with the outer threads matched with the inner threads, so that the connection between the steam valve cover and the cover body can be realized, the sealing between the steam valve cover and the steam channel can be realized, the sealing of the cooking cavity can be realized, the positive pressure or the negative pressure can be born in the cooking process, the cooking effect is improved, in addition, the rising or the falling of the steam valve cover can be realized under the driving of the driving component through the matching of the inner threads and the outer threads, the opening or closing of the outlet of the steam channel can be realized, the pressure in the cooking cavity can be regulated, the overflow of food materials can be avoided, and the food cooking effect can be improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a perspective view of a cooking appliance according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of a cooking appliance according to an embodiment of the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

fig. 4 is a sectional view of a cooking appliance according to an embodiment of the present utility model, in which a steam valve cover is separated from a cover body;

fig. 5 is an enlarged view at B in fig. 4;

FIG. 6 is an enlarged view at C in FIG. 4;

fig. 7 is an enlarged partial view of a steam valve cover of a cover assembly according to an embodiment of the present utility model.

Reference numerals:

100. a cooking appliance;

10. a cover assembly;

1. a cover body; 11. a steam channel; 111. an outlet; 112. an internal thread; 12. a groove;

2. a steam valve cover; 21. a cover body; 211. a handle portion; 212. an extension; 22. connecting the side walls; 221. a steam outlet; 222. an external thread; 223. a rack;

3. a drive assembly; 31. a driving motor; 32. a gear;

20. a main body; 201. an inner container; 202. a cooking chamber.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The cover assembly 10 and the cooking appliance 100 according to the embodiment of the present utility model are described below with reference to the accompanying drawings.

As shown in fig. 1, 2 and 4, the cooking appliance 100 according to the embodiment of the present utility model may be an electric cooker, the cooking appliance 100 includes a main body 20 and a cover assembly 10, the main body 20 has a cooking cavity 202, an upper end of the cooking cavity 202 is opened, the cover assembly 10 is disposed on the main body 20, and the cover assembly 10 is used for opening or closing the upper end opening of the cooking cavity 202. In addition, a seal may be provided between the cover assembly 10 and the main body 20 to seal the cooking cavity 202.

The cover assembly 10 may be detachably disposed on the main body 20, the cover assembly 10 is connected to the main body 20 by a screw, or the cover assembly 10 is rotatably disposed on the main body 20 to open or close the opening of the cooking cavity 202.

For example, in the example shown in fig. 1, 2 and 4, the cooking appliance 100 is an electric cooker, the main body 20 has a receiving cavity therein, the receiving cavity may have a liner 201 disposed therein, and the liner 201 has a cooking cavity 202 for holding and cooking food.

As shown in fig. 1 to 4, a cover assembly 10 according to an embodiment of the present utility model includes a cover 1, a steam valve cover 2, and a driving assembly 3.

Specifically, the cover 1 is provided with a steam channel 11, one end of the steam channel 11 is communicated with the cooking cavity 202, and steam generated by the cooking appliance 100 in the process of cooking food can enter the steam channel 11. Wherein the steam channel 11 may penetrate the cover 1 in the thickness direction of the cover 1, of course, the steam channel 11 may extend in the thickness direction of the cover 1, the inner surface of the cover 1, i.e., the surface of the cover 1 facing the cooking cavity 202 when the cover 1 closes the opening of the cooking cavity 202, has an inlet communicating with the steam channel 11, and the outer surface of the cover 1, i.e., the surface of the cover 1 away from the cooking cavity 202, has an outlet 111 communicating with the steam channel 11. It will be appreciated that the end of the steam channel 11 that is closer to the cooking chamber 202 is the inlet and the end that is farther from the cooking chamber 202 is the outlet 111.

The steam valve cover 2 is arranged on the cover body 1 in a lifting manner to open or close the outlet 111 of the steam channel 11, the side wall of the steam valve cover 2 stretches into the steam channel 11, as shown in fig. 7, the side wall of the steam valve cover 2 is provided with a steam outlet 221, when the steam outlet 221 is partially or completely opened, steam entering the steam channel 11 can be discharged from the steam outlet 221, and the outlet 111 of the steam channel 11 is opened.

Further, as shown in fig. 3, 5 and 6, the inner circumferential wall of the steam channel 11 is provided with an internal thread 112, the outer side wall of the steam valve cover 2 is provided with an external thread 222 matched with the internal thread 112, the connection between the steam valve cover 2 and the cover body 1 can be realized through the internal thread 112 and the external thread 222, and meanwhile, the sealing connection between the steam valve cover 2 and the steam channel 11 can be realized through the matching of the external thread 222 on the steam valve cover 2 and the internal thread 112 on the inner circumferential wall of the steam channel 11, so that the cooking utensil 100 can bear positive pressure or negative pressure better in the cooking process, thereby improving the cooking effect.

The positive pressure in the cooking process can be in a sealing state of the cooking cavity 202, and the pressure in the cooking cavity 202 is gradually increased due to the increase of the heating time of food, so that the pressure in the cooking cavity 202 is positive pressure, or a pump body is arranged on the cover body 1 or the main body 20, the pressure in the cooking cavity 202 is positive pressure by blowing air into the cooking cavity 202 through the pump body, and the negative pressure in the cooking cavity 202 can be realized by vacuumizing the pump body.

The driving assembly 3 is configured to drive the steam valve cover 2 to rotate so as to lift relative to the cover body 1, and it can be understood that, because the steam valve cover 2 and the steam channel 11 are in threaded connection, in the process that the driving assembly 3 drives the steam valve cover 2 to rotate, the steam valve cover 2 can move along the axial direction of the steam channel 11 under the cooperation of the internal thread 112 and the external thread 222, thereby realizing the lifting of the steam valve cover 2.

The driving assembly 3 drives the steam valve cover 2 to lift relative to the cover body 1, so that the size of the steam valve cover 2 blocking the steam outlet 221 can be adjusted, wherein the steam valve cover 2 has an initial position and a lifting position, and when the steam valve cover 2 is located at the initial position, the cover body 1 completely blocks the steam outlet 221, namely, the steam valve cover 2 is located at a position for closing the steam outlet 221, namely, a position for closing the outlet 111 of the steam channel 11. In addition, when the steam valve cover 2 is in the initial position, the inner peripheral wall of the steam channel 11 is in threaded connection with the outer side wall of the steam valve cover 2 and is in threaded sealing, and as shown in fig. 7, at least part of the steam outlet 221 is positioned on the part of the side wall provided with the internal thread 112.

It will be appreciated that the driving assembly 3 may drive the steam valve cover 2 to lift relative to the cover body 1 so as to switch the steam valve cover 2 between an initial position and a lifting position, and in the initial position, the side wall of the steam valve cover 2 is located in the steam channel 11, the steam outlet 221 is opposite to the inner wall of the steam channel 11, the inner wall of the steam channel 11 may seal the steam outlet 221, as the steam valve cover 2 is lifted under the driving action of the driving assembly 3, the steam outlet 221 is gradually exposed from the steam channel 11, the steam outlet 221 may be communicated with the external environment, and the pressure in the cooking cavity 202 may be discharged from the exposed steam outlet 221 through the steam channel 11. Wherein, the exposed area of the steam outlet 221 is different according to the difference of the rising height of the steam valve cover 2, so the exposed area of the steam outlet 221 can be adjusted by adjusting the rising height of the steam valve cover 2, thereby adjusting the steam pressure in the cooking cavity 202.

When the cooking utensil 100 is used, when food materials in the cooking cavity 202 are about to overflow, the steam valve cover 2 can be controlled to ascend through the driving component 3, the steam outlet 221 is partially or completely exposed, the release of the pressure in the cooking cavity 202 is realized, and the overflow of the food materials is avoided. Specifically, the control driving assembly 3 drives the steam valve cover 2 to rise when the cooking appliance 100 receives a command. The instruction received may be an artificial control instruction, i.e. an artificial active control of the steam valve cover 2 to rise, or a pressure sensor is arranged in the cooking cavity 202, and the steam valve cover 2 is controlled to rise when the pressure detected by the pressure sensor reaches a preset value, or a temperature sensor is arranged in the cooking cavity 202, and the steam valve cover 2 is controlled to rise when the temperature detected by the temperature sensor reaches a preset temperature.

According to the cover body assembly 10 provided by the embodiment of the utility model, the internal thread 112 is arranged on the inner peripheral wall of the steam channel 11, and the external thread 222 matched with the internal thread 112 is arranged on the outer side wall of the steam valve cover 2, so that not only can the connection between the steam valve cover 2 and the cover body 1 be realized, but also the sealing between the steam valve cover 2 and the steam channel 11 can be realized, thereby realizing the sealing of the cooking cavity 202, enabling the cooking cavity to bear positive pressure or negative pressure in the cooking process, and improving the cooking effect. In addition, the steam valve cover 2 can be lifted or lowered under the driving of the driving assembly 3 through the matching of the internal threads 112 and the external threads 222, so that the outlet 111 of the steam channel 11 is opened or closed, the pressure in the cooking cavity 202 is regulated, the overflow of food materials is avoided, and the food cooking effect can be improved.

In some embodiments of the present utility model, as shown in fig. 3, 5 and 6, the driving assembly 3 includes a driving motor 31 and a gear 32. Wherein, the driving motor 31 is arranged on the cover body 1, the gear 32 is connected with the output shaft of the driving motor 31, the rack 223 meshed with the gear 32 is arranged on the peripheral wall of the steam valve cover 2, and the rack 223 extends along the circumferential direction of the steam valve cover 2. After receiving the instruction, the driving motor 31 drives the motor 31 to forward, drives the gear 32 to rotate, and the gear 32 is meshed with the rack 223 to drive the steam valve cover 2 to rotate, and as the steam valve cover 2 is in threaded connection with the steam channel 11, the steam valve cover 2 can ascend relative to the cover body 1 in the rotating process of the steam valve cover 2, so that part or all of the steam outlet 221 is exposed, and release of steam pressure is realized. After the pressure release is completed or before the cooking utensil 100 is used next time, the driving motor 31 can be reversed to drive the gear 32 to rotate, the gear 32 is meshed with the rack 223 to drive the steam valve cover 2 to rotate, and the steam valve cover 2 can be lowered to an initial position relative to the cover body 1 in the process of rotating the steam valve cover 2 due to the threaded connection of the steam valve cover 2 and the steam channel 11.

For example, in the examples shown in fig. 3, 5 and 6, the driving motor 31 is disposed in the cover 1 and located at one side of the steam channel 11, the output shaft of the driving motor 31 faces upward, the gear 32 is located above the driving motor 31 and connected to the output shaft of the driving motor 31, and a part of the gear 32 extends into the steam channel 11 to cooperate with the rack 223 on the outer side wall of the steam valve cover 2. Alternatively, the rack 223 is integral with the steam valve cap 2.

Further, as shown in fig. 3 and 6, the rack 223 is located at a side of the external thread 222 near the inlet of the steam passage 11. Thereby, during assembly of the cover assembly 10, the installation of the steam valve cover 2 is facilitated, while the sealing of the steam valve cover 2 and the steam channel 11 and the sealing of the steam outlet 221 are facilitated.

In other embodiments of the present utility model, the driving component 3 may be a screw mechanism, a screw of the screw mechanism is provided on the cover 1, a nut of the screw mechanism is slidably provided on the steam valve cover 2 and is slidable along a circumferential direction of the steam valve cover 2, a positioning column is provided on one of a sidewall of the steam valve cover 2 and an inner circumferential wall of the steam channel 11, a positioning groove matched with the positioning column is provided on the other, and the positioning groove is inclined downward along the circumferential direction of the steam valve cover 2. Of course, the driving assembly 3 may also be an electric push rod, one end of which is rotatably connected with the steam valve cover 2, and the specific pushing manner is the same as that of the screw rod mechanism, which is not described in detail herein.

In some embodiments of the present utility model, the internal threads 112 and the external threads 222 are engaged throughout the lifting process of the steam valve cover 2. Therefore, the internal thread 112 and the external thread 222 can be matched at the highest rising position of the steam valve cover 2, the problem that the external thread 222 on the steam valve cover 2 is separated from the internal thread 112 on the steam channel 11 and needs to be manually aligned when the steam valve cover 2 is driven to descend is avoided, the use is convenient for users, and the convenience of the users is improved.

In some embodiments of the present utility model, as shown in fig. 2 to 4, the steam valve cover 2 includes a cover body 21 and a connection sidewall 22, the connection sidewall 22 is in a ring shape, the connection sidewall 22 is disposed in the steam channel 11 in a liftable manner, and the steam outlet 221 and the external thread 222 are disposed in the connection sidewall 22. The cover body 21 is connected to an axial end of the connection sidewall 22 for opening or closing the outlet 111 of the steam channel 11, the cover body 21 having an extension 212 beyond the connection sidewall 22 in a radial direction of the connection sidewall 22, the extension 212 being adapted to ride on the cover body 1 when the cover body 21 closes the outlet 111 of the steam channel 11. The extension 212 cooperates with the cover 1 to limit the movement of the steam valve cover 2.

Further, as shown in fig. 2-5, the cover 1 is provided with a recess 12 surrounding the steam channel 11, which recess communicates with the steam channel 11, and in an initial position the extension 212 is adapted to rest on the bottom wall of the recess 12. Wherein the side of the groove 12 facing the steam channel 11 is open, so that the extension 212 is arranged on the bottom wall of the groove 12, and the extension 212 arranged on the bottom wall of the groove 12 can have a certain limiting and fixing effect on the steam valve cover 2, thereby improving the fixing reliability of the steam valve cover 2.

Further, as shown in fig. 2 and 3, when the cover body 21 closes the outlet 111 of the steam channel 11, i.e., in the initial position, the plane of the extension 212 away from the bottom wall of the recess 12 is flush with the outer surface of the cover body 1. Therefore, the outer surface of the cover body 1 is smoother, ash storage points are reduced, the cover body is convenient for a user to clean, and meanwhile the integrity of the appearance of the cover body 1 can be improved.

In some embodiments of the utility model, a gasket is provided between the extension 212 and the cover 1. In particular, a gasket may be provided between the surface of the extension 212 facing the cooking cavity 202 and the cover 1, and the gasket is pressed when the steam valve cover 2 is in the initial position, so that the sealing performance between the steam valve cover 2 and the steam channel 11 may be further increased. Wherein, when the groove 12 is provided on the cover 1, the gasket may be provided between the bottom wall of the groove 12 and the extension 212.

Further, the gasket may be adhered to the cover 1 or the extension 212, and when the gasket is adhered to the extension 212, the gasket is lifted along with the steam valve cover 2 during the lifting process of the steam valve cover 2, and is lowered along with the steam valve cover 2 during the lowering process of the steam valve cover 2, and when the gasket is lowered to the initial position, the gasket is extruded by the extension 212 and the cover 1, so as to realize sealing.

In some embodiments of the present utility model, as shown in fig. 1, 2 and 4, the outer surface of the portion of the steam valve cover 2 opposite to the steam channel 11 has a handle portion 211. Thus, the steam valve cover 2 can be manually rotated to raise or lower the steam valve cover 2, and the handle portion 211 can also be used as a handle of the entire cover assembly 10, so that the cover assembly 10 can be opened and closed by the handle portion 211.

Further, as shown in fig. 2 and 4, the handle portion 211 is formed by protruding a portion of the steam valve cover 2 opposite to the steam passage 11 in a direction away from the steam passage 11, whereby the weight of the steam valve cover 2 can be reduced, the assembling process between the handle portion 211 and the steam valve cover 2 can be reduced, and the assembling efficiency of the cover assembly 10 can be improved.

The cooking appliance 100 according to the embodiment of the present utility model includes the cover assembly 10 described above. Since the above-described cover assembly 10 has the above-described effect, the cooking appliance 100 including the above-described cover assembly 10 also has the above-described effect.

According to the cooking utensil 100 of the embodiment of the utility model, by arranging the cover body assembly 10, the inner peripheral wall of the steam channel 11 is provided with the inner screw thread 112, and the outer side wall of the steam valve cover 2 is provided with the outer screw thread 222 matched with the inner screw thread 112, not only can the connection between the steam valve cover 2 and the cover body 1 be realized, but also the sealing between the steam valve cover 2 and the steam channel 11 can be realized, thereby realizing the sealing of the cooking cavity 202, enabling the cooking process to bear positive pressure or negative pressure and improving the cooking effect. In addition, the steam valve cover 2 can be lifted or lowered under the driving of the driving assembly 3 through the matching of the internal threads 112 and the external threads 222, so that the outlet 111 of the steam channel 11 is opened or closed, the pressure in the cooking cavity 202 is regulated, the overflow of food materials is avoided, and the food cooking effect can be improved.

Alternatively, the steam valve cap 2 is a single piece.

Alternatively, the steam outlets 221 may be plural, and the plural steam outlets 221 may be spaced apart in the circumferential direction of the steam valve cover 2, however, the plural steam outlets 221 may be plural spaced apart in the axial direction of the steam valve cover 2, and the plural steam outlets 221 may be arranged in plural rows and plural columns on the side wall of the steam valve cover 2.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A cover assembly (10), comprising:

the steam box comprises a cover body (1), wherein a steam channel (11) is formed in the cover body (1), and an inner peripheral wall of the steam channel (11) is provided with an inner thread (112);

the steam valve cover (2) is arranged on the cover body (1) in a lifting manner so as to open or close an outlet (111) of the steam channel (11), and an external thread (222) matched with the internal thread (112) is arranged on the outer side wall of the steam valve cover (2);

the driving assembly (3) is used for driving the steam valve cover (2) to rotate so as to lift relative to the cover body (1).

2. The cover assembly (10) according to claim 1, wherein the drive assembly (3) comprises:

a drive motor (31), wherein the drive motor (31) is arranged on the cover body (1);

the gear (32), gear (32) with the output shaft connection of driving motor (31), be equipped with on the periphery wall of steam valve gap (2) with rack (223) of gear (32) meshing, rack (223) follow the circumference direction of steam valve gap (2).

3. The cover assembly (10) according to claim 2, wherein the rack (223) is located on a side of the external thread (222) near the inlet of the steam channel (11).

4. The cover assembly (10) of claim 1, wherein the internal threads (112) and the external threads (222) are engaged at all times during lifting of the steam valve cover (2).

5. The cover assembly (10) according to claim 1, wherein the steam valve cover (2) comprises:

the connecting side wall (22), the connecting side wall (22) is annular, the connecting side wall (22) is arranged in the steam channel (11) in a lifting manner, and the external thread (222) is arranged on the connecting side wall (22);

the cover body (21), the cover body (21) with the axial one end of connecting lateral wall (22) is connected, is used for opening or closing steam channel (11) export (111), the cover body (21) have in the radial direction of connecting lateral wall (22) surpass extension (212) of connecting lateral wall (22), when cover body (21) is closed export (111) of steam channel (11), extension (212) are suitable for to set up on the cover body (1).

6. The cover assembly (10) according to claim 5, wherein the cover (1) is provided with a groove (12) surrounding the steam channel (11), the groove (12) being in communication with the steam channel (11), the extension (212) being adapted to rest on the bottom wall of the groove (12).

7. The cover assembly (10) according to claim 6, wherein at least a portion of the surface of the extension (212) remote from the bottom wall of the recess (12) is flush with the outer surface of the cover (1) when the cover body (21) closes the outlet (111) of the steam channel (11).

8. The cover assembly (10) of claim 5, wherein a gasket is provided between the extension (212) and the cover (1).

9. The cover assembly (10) according to claim 1, wherein the outer surface of the portion of the steam valve cover (2) opposite the steam channel (11) has a handle portion (211).

10. A cooking appliance (100) characterized by comprising a cover assembly (10) according to any one of claims 1-9.