CN218355697U - Lid assembly and have its cooking utensil - Google Patents

Abstract

The utility model provides a lid subassembly and have its cooking utensil, wherein, the lid subassembly, include: the face cover is provided with a first visual area; the inner cover is arranged below the surface cover, and is provided with a vent hole; the air interchanger is arranged between the surface cover and the inner cover, and the first end of the air interchanger is communicated with the outside; the draft tube is connected between the second end of the air interchanger and the vent hole, the draft tube comprises a second visual area, and the projection of the first visual area on the inner cover covers the second visual area; the movable piece is movably arranged in the guide pipe, and is positioned in the second visible area when the air interchanger works; and the stop piece is arranged in the second visible area of the flow guide pipe and is matched with the stop of the moving piece, and an overflowing gap is formed between the stop piece and the flow guide pipe. Use the technical scheme of the utility model the operating condition user that can solve the breather among the correlation technique effectively is difficult to the problem of noticing.

Description

Lid assembly and have its cooking utensil

Technical Field

The utility model relates to a small household appliances field particularly, relates to a lid subassembly and have its cooking utensil.

Background

The cooking appliance needs to be exhausted after cooking is completed to open the cover body. Set up breather in cooking utensil in order to promote cooking utensil's exhaust speed among the correlation technique, thereby leading into the culinary art intracavity with external cold air through breather and make culinary art intracavity rapid cooling and discharge steam fast, perhaps directly take out the steam in the culinary art intracavity through breather with the speed of accelerating exhaust.

But above-mentioned breather is difficult for the user to perceive at the during operation, leads to the user to have the risk of uncapping by mistake on the one hand. On the other hand, when the ventilation device is damaged, the user is not easy to find, and the cooking effect of food is influenced by continuously using the cooking appliance.

SUMMERY OF THE UTILITY MODEL

A primary object of the utility model is to provide a lid subassembly and have its cooking utensil to solve the problem that breather's operating condition user among the correlation technique is difficult to perceive.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cover assembly including: the face cover is provided with a first visual area; the inner cover is arranged below the surface cover, and is provided with a vent hole; the air interchanger is arranged between the surface cover and the inner cover, and the first end of the air interchanger is communicated with the outside; the draft tube is connected between the second end of the air interchanger and the vent hole, the draft tube comprises a second visual area, and the projection of the first visual area on the inner cover covers the second visual area; the movable piece is movably arranged in the guide pipe, and is positioned in the second visible area when the air interchanger works; the stop piece is arranged in the second visible area of the flow guide pipe and is matched with the stop of the moving piece, and an overflowing gap is formed between the stop piece and the flow guide pipe.

Use the technical scheme of the utility model, breather sets up between face lid and inner cup, and honeycomb duct intercommunication breather and the interior epaxial air vent of covering for the air current that produces when opening breather is led and is sent to the culinary art intracavity of inner cup below. Be provided with moving part and stop part in the honeycomb duct, when breather opened, the air current that flows through in the honeycomb duct can blow the moving part and remove, and the stop part can carry out the backstop to the position of moving part to prevent that the moving part from blockking up the gas vent of honeycomb duct. When the air interchanger is closed, no air flow passes through the guide pipe, and the movable part can be in a static state, so that a user can judge whether the air interchanger is opened or not by observing whether the movable part moves or not. In order to make the user see clearly the active state of the moving part, be provided with the visual area of second on the honeycomb duct, when breather work, the moving part is located the visual area of second, also be provided with the visual area of first that covers the visual area of second on the face lid, the user can see through the motion state that the moving part was observed to the visual area of first visual area on the face lid and the visual area of second on the honeycomb duct, and learn breather's operating condition through the motion state of moving part, thereby can not open the lid by mistake when breather is operating condition. When a user finds that the cooking appliance is in the pressure relief and exhaust process but the moving part is in the extinguishing state, the ventilation device can be judged to possibly break down, so that the cooking appliance can be maintained in time. Above-mentioned structure makes breather's operating condition show outward through the active state of moving part to help promoting user's use and experience.

Further, the honeycomb duct still includes the first pipeline section of being connected with breather, the second pipeline section of being connected with the air vent and the moving part of being connected first pipeline section and second pipeline section and holds the section, and moving part and stop member set up in the moving part holds the section, and the visual region of second is located the moving part and holds the section. In the above-mentioned structure, the moving part holds the section and can carry on spacingly to the moving part for the moving part only can hold the section internalization at the moving part, the visual region of second only set up the moving part hold the section can, be favorable to reducing the visual regional area of second, correspondingly also can reduce the regional area of first visual, guarantee the aesthetic property of lid body component.

Furthermore, the movable part accommodating section comprises an air inlet pipe section, a movable pipe section and an air outlet pipe section which are sequentially connected, the air inlet pipe section is connected with the first pipe section, the air outlet pipe section is connected with the second pipe section, the diameter of the air inlet pipe section is smaller than that of the movable pipe section, and a step surface matched with the stop of the movable part is formed between the air inlet pipe section and the movable pipe section. The movable pipe section has the advantages that the structure is simple, the assembly is convenient, the step surface of the movable pipe section and the stop piece can limit the movable space of the movable piece, and the movable range of the movable piece is limited.

Further, the stopper includes a stopper rib extending in the axial direction of the draft tube; or the stopper comprises a stopper plate extending in a radial direction of the draft tube. Above-mentioned structure can play the spacing effect to the moving part on the one hand, also can guarantee to have enough big clearance of overflowing simultaneously between stop part and the honeycomb duct to guarantee the circulation of the gas that breather produced.

Further, the moving part holds the section and holds the direction of the exhaust end of section by the moving part and upwards slope gradually in the inlet end that the section was held to the moving part, the moving part has initial position with the step face butt and the operating position who holds the section with the step face separation, the face lid includes the apron and sets up the visual board on the apron, the regional first visual region that forms in visual board place, when the moving part was located initial position, the moving part was located the below of apron, when the moving part was located operating position, the moving part was located the below of visual board. Above-mentioned structure makes the user can not see the moving part at the breather during operation, only when the breather during operation, and the moving part just can be seen to be convenient for the user distinguish breather's operating condition, promoted user's use and experienced.

Further, the moving part holds the section and includes body and the body down of last body and the body of dismantling the connection, and the cross section of body and the body down is the arc structure, and the stop member sets up on the body down. Above-mentioned structure can be convenient for install the moving part in the moving part holds the section.

Further, the movable member comprises a movable ball, and the ratio of the diameter of the movable ball to the diameter of the movable pipe section is between 0.5 and 0.7. Above-mentioned structure can guarantee on the one hand that the activity ball is observed by the user easily, and on the other hand also can guarantee the interior gas flow volume of activity pipeline section, promotes the carminative efficiency of uncapping.

Further, the inner cup includes the inside lining and rotationally sets up in the metal covering of inside lining below, and the air vent setting is provided with the slot hole of dodging the honeycomb duct at the metal covering on the inside lining. The structure can realize the rotation of the metal cover, thereby realizing the locking and unlocking of the cover body assembly and the cooker body.

Furthermore, the cover body assembly further comprises a one-way valve arranged in the vent hole, and the flow guide pipe is communicated with the one-way valve. The structure is helpful for improving the tightness of the cooking cavity.

According to another aspect of the present invention, there is provided a cooking appliance, including: a pot body; the cover body assembly is arranged on the cooker body in a covering mode and is the cover body assembly. In the structure, the cover body assembly has the advantages of enabling the working state of the ventilation device to be displayed and enabling the user to experience good use experience, and therefore the cooking appliance with the cover body assembly also has the advantages.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a top view of an embodiment of a partial structure of a cover assembly according to the invention;

FIG. 2 shows an enlarged schematic view at A of the cover assembly of FIG. 1;

FIG. 3 illustrates a cross-sectional view of the moveable member receiving segment of the cover assembly of FIG. 1;

FIG. 4 is an exploded view of the mover receiving section of FIG. 3;

fig. 5 shows a schematic perspective view of an embodiment of a cooking appliance according to the present invention;

fig. 6 is a sectional view showing a partial structure of the cooking appliance of fig. 5;

fig. 7 shows an enlarged structural view at B of the cooking appliance of fig. 6.

Wherein the figures include the following reference numerals:

10. a face cover; 11. a first viewable area; 20. an inner cover; 21. a liner; 211. avoiding the long hole; 22. a metal cover; 221. a vent hole; 30. a ventilation device; 40. a flow guide pipe; 41. a first tube section; 42. a second tube section; 43. a movable member accommodating section; 431. a second viewable area; 432. an air intake pipe section; 433. a movable pipe section; 434. an exhaust pipe section; 435. a step surface; 436. a pipe body is arranged; 437. a lower pipe body; 50. a movable member; 60. a stopper; 70. a one-way valve; 71. a valve seat; 72. a valve core; 73. an elastic member; 80. a pot body; 90. a cover assembly.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

As shown in fig. 1, 3 and 5, the cover assembly of the present embodiment includes: the air conditioner comprises a surface cover 10, an inner cover 20, a ventilation device 30, a delivery pipe 40 and a movable piece 50. Wherein, the face cover 10 has a first visible area 11; the inner cover 20 is arranged below the face cover 10, and the inner cover 20 is provided with a vent hole 221; the ventilator 30 is arranged between the face cover 10 and the inner cover 20, and a first end of the ventilator 30 is communicated with the outside; the draft tube 40 is connected between the second end of the ventilation device 30 and the vent hole 221, the draft tube 40 comprises a second visible area 431, and the projection of the first visible area 11 on the inner cover 20 covers the second visible area 431; the movable element 50 is movably disposed in the draft tube 40, and the movable element 50 is located in the second visible area 431 when the ventilator 30 operates; the stop member 60 is disposed in the second visible area 431 of the draft tube 40 and is matched with the movable member stop, and an overflow gap is formed between the stop member 60 and the draft tube 40.

Use the technical scheme of the utility model, breather 30 sets up between face lid 10 and inner cup 20, and air vent 221 on honeycomb duct 40 intercommunication breather 30 and the inner cup 20 for the air current that produces when opening breather 30 leads to the culinary art intracavity of inner cup 20 below. The movable member 50 and the stop member 60 are disposed in the flow guide tube 40, when the ventilator 30 is opened, the air flowing through the flow guide tube 40 can blow the movable member 50 to move, and the stop member 60 can stop the position of the movable member 50 to prevent the movable member 50 from blocking the exhaust port of the flow guide tube 40. When the ventilator 30 is turned off, no air flows through the duct 40, and the movable element 50 can be in a stationary state, so that the user can determine whether the ventilator 30 is turned on by observing whether the movable element 50 is moving. In order to enable a user to clearly see the moving state of the moving part 50, the draft tube 40 is provided with a second visible area 431, when the ventilation device 30 works, the moving part 50 is located in the second visible area 431, the surface cover 10 is also provided with a first visible area 11 covering the second visible area 431, the user can observe the moving state of the moving part 50 through the first visible area 11 on the surface cover 10 and the second visible area 431 on the draft tube 40, and know the working state of the ventilation device 30 through the moving state of the moving part 50, so that the ventilation device 30 cannot be opened by mistake when in the working state. When the user finds that the cooking appliance is in the pressure relief and exhaust process but the movable element 50 is in the extinguishing state, the user can judge that the ventilation device 30 possibly breaks down, so that the cooking appliance can be maintained in time. The above structure makes the working state of the ventilation device 30 be highlighted through the active state of the movable element 50, thereby contributing to the improvement of the user experience.

It should be noted that, as shown in fig. 1, in the present embodiment, the ventilation device 30 is an air pump, and the air pump can send outside cold air into the flow guide tube 40, and enter the cooking cavity through the flow guide tube 40, so as to reduce the temperature in the cooking cavity through the cold air after pressure cooking is completed, and push out hot air in the cooking cavity, so as to achieve rapid air exhaust. In addition, the combination of the air pump and the draft tube 40 can make the arrangement position of the air pump more flexible, which is beneficial to optimizing the layout mode of the parts in the cover body assembly. Of course, in other embodiments, the ventilation device may also be a vacuum pump to pump out the air in the cooking cavity, so as to realize rapid pressure relief and exhaust.

It should be noted that, as shown in fig. 3, the flow-passing gap between the stopper 60 and the flow guide tube 40 needs to be smaller than the diameter of the movable member 50 to stop the movable member.

As shown in fig. 1 and 3, in the present embodiment, the draft tube 40 further includes a first tube section 41 connected to the ventilator 30, a second tube section 42 connected to the vent hole 221, and a mover accommodating section 43 connecting the first tube section 41 and the second tube section 42, the mover 50 and the stopper 60 are disposed in the mover accommodating section 43, and the second visible area 431 (a portion shown in a dashed line frame in fig. 3) is located on the mover accommodating section 43. In the above structure, the movable member accommodating section 43 can limit the movable member 50, so that the movable member 50 can only move in the movable member accommodating section, and the second visible area 431 is only arranged on the movable member accommodating section 43, which is beneficial to reducing the area of the second visible area 431, correspondingly reducing the area of the first visible area 11, and ensuring the aesthetic property of the cover assembly.

Specifically, as shown in fig. 3, in the present embodiment, the movable member accommodating section 43 includes an air inlet pipe section 432, a movable pipe section 433, and an air outlet pipe section 434, which are connected in sequence, the air inlet pipe section 432 is connected to the first pipe section 41, the air outlet pipe section 434 is connected to the second pipe section 42, a diameter of the air inlet pipe section 432 is smaller than a diameter of the movable pipe section 433, and a step surface 435 that is in stop fit with the movable member 50 is formed between the air inlet pipe section 432 and the movable pipe section 433. The structure is simple, the assembly is convenient, and the step surface 435 of the movable pipe section 433 and the stop piece 60 can limit the movable space of the movable element 50 to limit the movable range of the movable element 50.

As shown in fig. 3 and 4, in the present embodiment, the stopper 60 includes a stopper rib extending in the axial direction of the draft tube 40. The above structure can play a limiting effect on the moving member 50, and can ensure that a large enough flow gap is formed between the stop rib and the flow guide pipe 40, thereby ensuring the flow rate of the gas generated by the air interchanger 30.

Of course, in other embodiments, the stop member may also include a stop plate extending along the radial direction of the flow pipe, and only the flow passage gap is required between the end of the stop plate and the inner wall of the flow pipe.

As shown in fig. 3 and 5, in the present embodiment, the movable member accommodating section 43 gradually inclines upward in a direction from the air inlet end of the movable member accommodating section 43 to the air outlet end of the movable member accommodating section 43, the movable member 50 has an initial position abutting against the step surface 435 and a working position separated from the step surface 435, the surface cover 10 includes a cover plate and a visible plate disposed on the cover plate, an area where the visible plate is located forms the first visible area 11, when the movable member 50 is located at the initial position, the movable member 50 is located below the cover plate, and when the movable member 50 is located at the working position, the movable member 50 is located below the visible plate.

In the above structure, since the movable member accommodating section 43 gradually inclines upward in the direction from the air inlet end of the movable member accommodating section 43 to the air outlet end of the movable member accommodating section 43, when the ventilation device 30 does not operate, the movable member 50 will stop at the lower end (initial position) of the movable member accommodating section 43 under the effect of its own gravity, and at this time, the movable member 50 will be shielded by the cover plate, and the user cannot see the movable member 50. When the ventilation device 30 is in operation, the air flow blows the moveable member 50 away from the initial position, where the moveable member 50 is positioned below the viewing panel, the user can view the moveable member 50 and can view the condition of the moveable member 50 being blown by the air flow. The structure enables the user not to see the moving part 50 when the ventilation device 30 works, and the moving part 50 can be seen only when the ventilation device 30 works, so that the user can distinguish the working state of the ventilation device 30 conveniently, and the use experience of the user is improved.

As shown in fig. 4, in the present embodiment, the movable member receiving section 43 includes an upper tube 436 and a lower tube 437 which are detachably connected, the upper tube 436 and the lower tube 437 have an arc-shaped cross section, and the stopper 60 is disposed on the lower tube 437. In the above structure, in order to facilitate the installation of the movable member 50 in the movable member accommodation section 43, the movable member accommodation section 43 is divided into the upper pipe body 436 and the lower pipe body 437, and during installation, the movable member 50 is first put into the upper pipe body 436 or the lower pipe body 437, and then the upper pipe body 436 and the lower pipe body 437 are connected together. Specifically, the upper tube 436 and the lower tube 437 can be connected by bonding or snapping.

Of course, in other embodiments, the stopper may be disposed on the upper tube.

As shown in fig. 1, 3 and 4, in the present embodiment, the movable member 50 includes a movable ball, and the ratio of the diameter of the movable ball to the diameter of the movable tube segment 433 is between 0.5 and 0.7. Above-mentioned structure can guarantee on the one hand that the activity ball is observed by the user easily, and on the other hand also can guarantee the interior gas flow volume of activity pipeline section 433, promotes the carminative efficiency of uncapping. Specifically, in this embodiment, the ratio of the diameter of the movable ball to the diameter of the movable tube section 433 is 0.6, but the ratio may be 0.55, 0.65, or the like.

It should be noted that, the movable ball is the clean ball, makes the movable ball be blown by the air current more easily, and the activity sensitivity is better. The movable ball can be in colors which are easy to recognize, such as red, yellow, black and the like. The movable ball can be made of plastics, silica gel or rubber.

Of course, in other embodiments not shown in the figures, the movable member may also be a polyhedron structure (cube, cuboid, regular dodecahedron, regular icosahedron, etc.) or an irregularly shaped movable block.

As shown in fig. 1, 2, 6 and 7, in the present embodiment, the inner lid 20 includes a liner 21 and a metal lid 22 rotatably disposed below the liner 21, the vent hole 221 is disposed in the metal lid 22, and the liner 21 is provided with an escape long hole 211 of the escape guide duct 40. In the above structure, the metal cover 22 is provided with the cover teeth, and the metal cover 22 rotates to lock and unlock the cover assembly and the cooker body. Since the ventilator 30 needs to communicate with the cooking cavity, the flow guide tube 40 needs to pass through the long escape hole 211 of the liner 21 to communicate with the vent hole 221, the flow guide tube 40 is a flexible tube or a telescopic tube, and when the metal cover 22 rotates, the flow guide tube 40 is pulled along with the rotation of the metal cover 22, so that the flow guide tube 40 and the vent hole 221 are not separated. The above structure can realize the rotation of the metal cover 22, thereby realizing the locking and unlocking of the cover body assembly and the cooker body.

As shown in fig. 7, in the present embodiment, the cover assembly further includes a check valve 70 disposed in the vent hole 221, and the delivery tube 40 is communicated with the check valve 70. Specifically, the check valve 70 includes a valve seat 71 and a valve element 72, wherein an overflowing hole is formed in the valve seat 71, the valve element 72 is movably arranged in the overflowing hole and has a blocking position for blocking the overflowing hole and an opening position for opening the overflowing hole, the valve element 72 is connected with the valve seat 71 through an elastic member 73, and the elastic member 73 always applies a pulling force to the valve element 72 to keep the valve element 72 at the blocking position. When the ventilator 30 is working, the outside air flows into the through hole through the guide pipe 40, the valve core is pushed open, the valve core is moved to the open position, and the outside air can enter the cooking cavity.

As shown in fig. 5 and 6, the present application also provides a cooking appliance, an embodiment of the cooking appliance of the present application includes: the cooker comprises a cooker body 80 and a cover body assembly 90, wherein the cover body assembly 90 is covered on the cooker body 80, and the cover body assembly 90 is the cover body assembly. In the above-described structure, since the lid assembly 90 has an advantage that the operating state of the ventilation device 30 can be made conspicuous and the user experience is good, the cooking utensil having the same also has the above-described advantage.

In this embodiment, the cooking appliance may be an electric pressure cooker, an electric rice cooker, a soybean milk maker, a food processor, an electric stewpan, a cooker, a multifunctional pot, or the like.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A cover assembly, comprising:

a face cover (10) having a first visible area (11);

the inner cover (20) is arranged below the face cover (10), and the inner cover (20) is provided with a vent hole (221);

the air interchanger (30) is arranged between the face cover (10) and the inner cover (20), and a first end of the air interchanger (30) is communicated with the outside;

a draft tube (40) connected between the second end of the ventilation device (30) and the vent hole (221), the draft tube (40) including a second visible area (431), a projection of the first visible area (11) on the inner lid (20) covering the second visible area (431);

the movable piece (50) is movably arranged in the flow guide pipe (40), and when the ventilation device (30) works, the movable piece (50) is positioned in the second visual area (431);

the stop piece (60) is arranged in the second visible area (431) of the draft tube (40) and is matched with the movable piece (50) in a stop way, and an overflow gap is formed between the stop piece (60) and the draft tube (40).

2. The cover assembly according to claim 1, wherein the flow duct (40) further comprises a first duct section (41) connected to the ventilation device (30), a second duct section (42) connected to the vent hole (221), and a movable member accommodating section (43) connecting the first duct section (41) and the second duct section (42), the movable member (50) and the stopper member (60) being disposed in the movable member accommodating section (43), and the second visible area (431) being located on the movable member accommodating section (43).

3. The cover assembly according to claim 2, wherein the movable member accommodating section (43) comprises an air inlet pipe section (432), a movable pipe section (433) and an air outlet pipe section (434) which are connected in sequence, the air inlet pipe section (432) is connected with the first pipe section (41), the air outlet pipe section (434) is connected with the second pipe section (42), the diameter of the air inlet pipe section (432) is smaller than that of the movable pipe section (433), and a stepped surface (435) matched with the movable member (50) in a stopping manner is formed between the air inlet pipe section (432) and the movable pipe section (433).

4. The cover assembly of claim 1,

the stopper (60) includes a stopper rib extending in an axial direction of the draft tube (40); or

The stopper (60) includes a stopper plate extending in a radial direction of the draft tube (40).

5. The cover assembly according to claim 3, wherein the movable member accommodating section (43) is inclined gradually upward in a direction from an air inlet end of the movable member accommodating section (43) to an air outlet end of the movable member accommodating section (43), the movable member (50) has an initial position abutting against the step surface (435) and a working position separated from the step surface (435), the face cover (10) includes a cover plate and a visual plate provided on the cover plate, an area where the visual plate is located forms the first visual area (11), the movable member (50) is located below the cover plate when the movable member (50) is located at the initial position, and the movable member (50) is located below the visual plate when the movable member (50) is located at the working position.

6. The cover assembly according to claim 2, wherein the mover accommodating section (43) includes an upper tube (436) and a lower tube (437) detachably connected, the upper tube (436) and the lower tube (437) having an arc-shaped cross section, the stopper (60) being provided on the lower tube (437).

7. The cover assembly of claim 3, wherein said movable member (50) comprises a movable ball having a diameter relative to a diameter of said movable tube segment (433) of between 0.5 and 0.7.

8. The cover assembly according to claim 2, wherein the inner cover (20) comprises an inner liner (21) and a metal cover (22) rotatably disposed below the inner liner (21), the vent hole (221) is disposed in the metal cover (22), and an escape long hole (211) for escaping the draft tube (40) is disposed in the inner liner (21).

9. The cover assembly of claim 8, further comprising a one-way valve (70) disposed within the vent (221), the delivery tube (40) being in communication with the one-way valve (70).

10. A cooking appliance, comprising:

a pot body (80);

a cover assembly (90) covering the cooker body (80), wherein the cover assembly (90) is the cover assembly of any one of claims 1 to 9.

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