CN214048563U - Lid and have its cooking utensil - Google Patents

Abstract

The utility model provides a lid and have its cooking utensil, wherein, the lid, include: the cover body is provided with an air duct; the cover plate is arranged on the cover body and is provided with a closing position covering the air outlet of the air duct and an opening position far away from the air outlet; the driving structure is used for driving the cover plate to switch between a closed position and an open position; the pneumatic switch is in a connected state and a disconnected state, is electrically connected with the driving structure, and controls the driving structure through state change of the pneumatic switch. Use the utility model discloses can solve the easy problem of damaging of lid among the correlation technique effectively.

Description

Lid and have its cooking utensil

Technical Field

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

Background

Currently, the multi-functional cooking appliances in the related art generally include a pressure cooker lid and a grill lid that are replaceable with each other to reduce the occupied area of the kitchen. The baking pot cover is generally provided with a hot air outlet, and when the cooking appliance works, hot air is blown into a cooking cavity of the cooking appliance through the air outlet so as to cook food in the cooking cavity.

However, the air outlet in the related art is open, so that when the air outlet is not used, insect dust and the like easily enter the baking pan cover from the air outlet, which is not beneficial to the collection of a user. In addition, the user may have the possibility of water inflow during cleaning, which leads to easy damage of the roaster pot cover.

SUMMERY OF THE UTILITY MODEL

The main object of the present invention is to provide a lid and a cooking utensil having the same, so as to solve the problem of easy damage of the lid in the related art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a cover comprising: the cover body is provided with an air duct; the cover plate is arranged on the cover body and is provided with a closing position covering the air outlet of the air duct and an opening position far away from the air outlet; the driving structure is used for driving the cover plate to switch between a closed position and an open position; the pneumatic switch is in a connected state and a disconnected state, is electrically connected with the driving structure, and controls the driving structure through state change of the pneumatic switch.

Use the technical scheme of the utility model, when the user used the lid, drive structure drive cover plate can switch to opening the position to make the air outlet open, hot-blast can blow in the culinary art intracavity through the air outlet, in order to toast the heating to food. When the user no longer needs to use the lid, drive structure drive cover plate switches to the closed position, and outside worm or dust just can not get into to the lid body inside from the air outlet like this, guarantee the life of lid. In addition, when a user cleans the cover body, the cover body can be switched to the closing position, so that the cleaning water is not easy to enter the cover body from the air outlet, and the cover body is not easy to damage. In addition, when the cover body is covered on the appliance body and the cover body works, wind starts to be generated. When the pneumatic switch senses wind, the wind can push the pneumatic switch to disconnect the pneumatic switch, and after a signal of disconnection of the pneumatic switch is received, the driving structure drives the cover plate to open the air outlet. After the cooking procedure is finished, no fresh air enters the cover body to contact with the pneumatic switch, the pneumatic switch can be automatically closed, and after a signal that the pneumatic switch is closed is received, the driving structure drives the cover plate to close the air outlet. Above-mentioned structure can realize the lid in windy opening the air outlet, the purpose that the air outlet was closed to the windless in the lid, needn't user manual selection, reduces user operation step, improves user's use and experiences.

Further, pneumatic switch includes the trigger end, and the trigger end sets up in the wind channel. Above-mentioned structure can realize windy opening the air outlet in the wind channel, and the purpose that the air outlet was closed to windless in the wind channel makes the switching of cover plate position more accurate.

Further, the air intake and the air outlet in wind channel are located the relative both sides of lid, and the lid still includes: and the heating device is arranged in the air duct, and the trigger end of the pneumatic switch is arranged between the air inlet and the heating device. The structure enables the air channel to be as long as possible, so that the air in the air channel can be heated fully, and the heat efficiency is improved. In addition, the trigger end of the pneumatic switch is arranged between the air inlet and the heating device, so that the following two benefits are achieved: firstly, above-mentioned structure makes trigger end can contact wind more fast to change pneumatic switch's state, shorten corresponding time. Secondly, above-mentioned structure makes the temperature of the gas with the trigger end contact lower, avoids pneumatic switch temperature rise too high, guarantees pneumatic switch's life.

Furthermore, the pneumatic switch comprises a shell, a fixed pin arranged in the shell and a movable pin which penetrates through the shell and moves relative to the fixed pin, wherein part of the movable pin extends into the air duct, and the movable pin is contacted with or separated from the fixed pin under the action of wind in the air duct so as to realize the state switching of the pneumatic switch. The structure is simple and easy to realize.

Further, the lid body is including face lid, inside lining and the bowl that from top to bottom arranges in proper order, and the passageway in the bowl forms the wind channel, and the shell sets up between face lid and inside lining, and the air inlet department that is close to the wind channel of inside lining is provided with dodges the mouth, moves to participate in and wears to locate to dodge in the mouth. In the structure, the temperature of the space between the surface cover and the lining is lower, the main body part of the pneumatic switch is arranged in the space with lower temperature, so that the overhigh temperature rise of the pneumatic switch can be avoided, and the service life of the pneumatic switch is ensured.

Further, be provided with the opening on the lateral wall of inside lining, the opening forms the air intake, forms the heat dissipation wind channel between face lid and the inside lining, and the heat dissipation wind channel import in heat dissipation wind channel is located the top of air intake, and the lid still includes: and the fan is arranged at the air inlet and the inlet of the heat dissipation air duct. On one hand, the structure can introduce fresh air with lower temperature into the heat dissipation air duct, so that the temperature rise of the face cover is reduced, and the use experience of a user is improved; on the other hand, the temperature of the environment where the pneumatic switch is located can be reduced, so that the service life of the pneumatic switch is ensured.

Furthermore, the driving structure is a telescopic structure, the telescopic structure is telescopically arranged on the cover body, a telescopic end of the telescopic structure is connected with the cover plate, the cover plate is controlled to be switched between a closed position and an open position through the telescopic structure, and the telescopic structure is controlled to be telescopic through the state change of the pneumatic switch. The driving structure is simple and the cost is low.

Furthermore, the lid body includes the upper cover subassembly and sets up the bowl in upper cover subassembly below, and the bowl includes last bowl and the bowl down that closes each other, goes up the passageway between bowl and the bowl down and forms at least partial wind channel, and the air outlet in wind channel sets up on the bowl down, and extending structure and cover plate set up in the position department that corresponds with the air outlet of last bowl. The structure can make full use of the space in the reflector to arrange the telescopic structure and the cover plate, thereby realizing the miniaturization design.

Further, the lateral wall of the upper reflector is provided with an installation boss protruding outwards, the telescopic structure is arranged on the lateral wall of the installation boss, the cover plate can be pivotally arranged in the installation boss and matched with the inner lateral wall of the installation boss, the lower reflector comprises a support ring and a transparent plate supported on the support ring, the air outlet is arranged at the position, opposite to the installation boss, of the support ring, a communication port communicated with the air outlet is formed between the lateral wall of the transparent plate and the lateral wall of the installation boss, and under the condition that the cover plate is located at the closed position, the telescopic structure extends out and abuts against the cover plate on the support ring to seal the communication port. In the structure, the upper reflecting cover is only provided with the mounting boss protruding outwards at the position corresponding to the air outlet so as to mount the telescopic structure and the cover plate, and other parts of the upper reflecting cover do not need to be expanded outwards, so that the volume of the reflecting cover can be effectively reduced, and the miniaturization design of the cover body is realized.

Furthermore, be provided with the clip on one in extending structure and the cover plate, be provided with the bayonet socket with the clip lock on another in extending structure and the cover plate. The structure is simple, and the assembly is convenient.

According to another aspect of the present invention, there is provided a cooking appliance, including: an appliance body; the cover body is arranged on the appliance body in a covering mode. Because the cover body has the advantages of convenience in cleaning, long service life and high safety, the cooking appliance with the cover body also has the advantages.

Further, the cooking appliance further includes: and the control panel is arranged in the appliance body or the cover body and is electrically connected with the driving structure of the cover body and the pneumatic switch. Above-mentioned structure can realize the lid in windy opening the air outlet, the purpose that the air outlet was closed to the windless in the lid, needn't user manual selection, reduces user operation step, improves user's use and experiences.

Drawings

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

fig. 1 shows an exploded structural schematic view of an embodiment of a cover according to the present invention;

FIG. 2 shows a schematic longitudinal cross-sectional view of the lid flap of the lid of FIG. 1 in a closed position;

FIG. 3 shows an enlarged schematic view of the cover of FIG. 2 at A;

fig. 4 shows an enlarged schematic structural view at B of the cover of fig. 2;

FIG. 5 is a schematic longitudinal cross-sectional view of the lid flap of the closure of FIG. 1 in an open position;

FIG. 6 is an enlarged schematic view of the cover of FIG. 5 at C;

FIG. 7 shows an enlarged schematic view of the cover of FIG. 5 at D;

FIG. 8 is a perspective view of the lid of FIG. 1 with the inner liner, reflector, telescoping structure, pneumatic switch, and fan assembled;

FIG. 9 is a perspective view of the upper reflective cover of the cover of FIG. 1;

fig. 10 shows an exploded schematic view of an embodiment of a cooking appliance according to the present invention; and

fig. 11 shows a longitudinal sectional view of the cooking appliance of fig. 10.

Wherein the figures include the following reference numerals:

1. an air duct; 2. an air outlet; 3. an air inlet; 5. an inlet of a heat dissipation air duct; 7. a communication port; 8. a heat dissipation air duct; 10. a cover body; 11. a face cover; 12. a liner; 121. avoiding the mouth; 13. a reflector; 131. an upper reflector; 132. a lower bowl; 133. mounting a boss; 134. a support ring; 135. a transparent plate; 14. an upper cover assembly; 20. a cover sheet; 21. a pivot; 30. a telescopic structure; 31. a clasp; 32. a bayonet; 40. a pneumatic switch; 41. a housing; 42. a fixed pin; 43. a movable pin; 50. a heating device; 60. a fan; 70. an appliance body; 80. a cover body.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 7, the cover of the present embodiment includes: lid body 10, cover plate 20, drive structure and pneumatic switch 40. The cover body 10 has an air duct 1. The cover 20 is disposed on the cover body 10, and the cover 20 has a closing position covering the air outlet 2 of the air duct 1 and an opening position far away from the air outlet 2. The driving structure drives the cover plate 20 to switch between the closed position and the open position; the pneumatic switch 40 has a connected state and a disconnected state, and the pneumatic switch 40 is electrically connected to the driving structure, and the driving structure is controlled by a state change of the pneumatic switch 40.

Use the technical scheme of this embodiment, when the user used the lid, drive structure drive cover plate 20 can switch to the open position to make air outlet 2 open, hot-blast can blow in the culinary art intracavity through air outlet 2, in order to toast the heating to food. When the user no longer needs to use the lid, the driving structure drives the lid 20 to switch to the closed position, so that external insects or dust cannot enter the lid body 10 from the air outlet 2, and the service life of the lid is ensured. In addition, when the user cleans the cover body, the cover body can be switched to the closed position, so that the clean water is not easy to enter the cover body 10 from the air outlet 2, and the cover body is not easy to damage. In addition, when the cover body is covered on the appliance body and the cover body works, wind starts to be generated. When the pneumatic switch 40 senses wind, the wind can push the pneumatic switch 40 to turn off the pneumatic switch 40, and after receiving a signal of turning off the pneumatic switch 40, the driving structure drives the cover plate 20 to open the air outlet 2. After the cooking procedure is finished, no fresh air enters the cover body to contact with the pneumatic switch 40 any more, the pneumatic switch 40 can be automatically closed, and after a signal that the pneumatic switch 40 is closed is received, the driving structure drives the cover plate 20 to close the air outlet 2. Above-mentioned structure can realize the lid in windy opening air outlet 2, the purpose that the air outlet 2 was closed to the windless in the lid, needn't user manual selection, reduces user operation step, improves user's use and experiences.

It should be noted that when cooking high-humidity food materials and the fan does not work in the heat preservation stage, the cover sheet 20 can close the air outlet 2, and gas or oil contamination can not be generated and reversely connected to the cover body. Of course, in other embodiments not shown, the pneumatic switch may be turned off in the absence of wind and turned on in the presence of wind.

As shown in fig. 3 and 6, in the present embodiment, the pneumatic switch 40 includes an actuation end that is disposed within the air chute 1. Above-mentioned structure can realize that windy opening air outlet 2 in the wind channel 1, and the purpose that windless closed air outlet 2 in the wind channel 1 makes the switching of cover plate position more accurate.

As shown in fig. 2 to 7, in this embodiment, the air inlet 3 and the air outlet 2 of the air duct 1 are located at two opposite sides of the cover, and the cover further includes: and the heating device 50 is arranged in the air duct 1. The structure enables the air duct 1 to be as long as possible, so that the air in the air duct 1 can be heated fully, and the heat efficiency is improved. Furthermore, the placement of the trigger end of the pneumatic switch 40 between the air inlet 3 and the heating device 50 has two benefits: firstly, the above structure enables the trigger end to contact with the wind more quickly, thereby changing the state of the pneumatic switch 40 and shortening the corresponding time. Secondly, the temperature of the gas contacting the trigger end is lower due to the structure, so that the overhigh temperature rise of the pneumatic switch 40 is avoided, and the service life of the pneumatic switch 40 is ensured. Preferably, in the present embodiment, the triggering end extends into the air inlet 3 of the air duct 1.

As shown in fig. 3 and 6, the pneumatic switch 40 includes a housing 41, a fixed pin 42 disposed in the housing 41, and a movable pin 43 disposed on the housing 41 and moving relative to the fixed pin 42, wherein a portion of the movable pin 43 extends into the air duct 1, and the movable pin 43 is contacted with or separated from the fixed pin 42 under the action of the wind in the air duct 1, so as to switch the state of the pneumatic switch 40. The structure is simple and easy to realize.

As shown in fig. 1 to 3, 5 and 6, in the present embodiment, the cover body 10 includes a surface cover 11, an inner liner 12 and a reflective cover 13 sequentially arranged from top to bottom, a channel in the reflective cover 13 forms the air duct 1, the housing 41 is disposed between the surface cover 11 and the inner liner 12, an avoiding opening 121 is disposed at a position of the inner liner 12 close to the air inlet 3 of the air duct 1, and the movable pin 43 penetrates through the avoiding opening 121. In the above structure, the temperature of the space between the face cover 11 and the inner lining 12 is low, and the main body of the pneumatic switch 40 is arranged in the space with low temperature, so that the temperature rise of the pneumatic switch 40 can be avoided from being too high, and the service life of the pneumatic switch 40 is ensured.

As shown in fig. 2, fig. 3, fig. 5, fig. 6 and fig. 8, in this embodiment, an opening is disposed on a side wall of the inner liner 12, the opening forms the air inlet 3, a heat dissipation air duct 8 is formed between the surface cover 11 and the inner liner 12, the heat dissipation air duct inlet 5 of the heat dissipation air duct 8 is located above the air inlet 3, and the cover further includes: and the fan 60 is arranged at the air inlet 3 and the heat dissipation air duct inlet 5 of the heat dissipation air duct 8. On one hand, the structure can introduce fresh air with lower temperature into the heat dissipation air duct 8, so that the temperature rise of the face cover 11 is reduced, and the use experience of a user is improved; on the other hand, the temperature of the environment where the pneumatic switch 40 is located can be reduced, so that the service life of the pneumatic switch 40 is ensured.

As shown in fig. 1 to 7, in the present embodiment, the driving structure is an extensible structure 30, the extensible structure 30 is telescopically disposed on the cover body 10, an extensible end of the extensible structure 30 is connected to the cover plate 20, the cover plate 20 is controlled to switch between the closed position and the open position by the extension of the extensible structure 30, and the extensible structure 30 is controlled to extend and retract by the state change of the pneumatic switch 40. Specifically, when the user uses the lid, the telescopic structure 30 is extended or retracted to drive the lid plate 20 to be switched to the open position, so that the air outlet 2 is opened, and hot air can be blown into the cooking cavity through the air outlet 2 to bake and heat food. When the user no longer needs to use the cover, the retractable structure 30 retracts or extends correspondingly to drive the cover plate 20 to switch to the closed position, so that external insects or dust cannot enter the cover body 10 from the air outlet 2, and the service life of the cover is ensured. The driving structure is simple and the cost is low.

As shown in fig. 1, fig. 2, fig. 4, fig. 5, fig. 7 and fig. 9, in the present embodiment, the cover body 10 includes an upper cover assembly 14 and a reflection cover 13 disposed below the upper cover assembly 14, the reflection cover 13 includes an upper reflection cover 131 and a lower reflection cover 132 that are mutually covered, a channel between the upper reflection cover 131 and the lower reflection cover 132 forms at least a part of the air duct 1, the air outlet 2 of the air duct 1 is disposed on the lower reflection cover 132, and the telescopic structure 30 and the cover plate 20 are disposed at a position of the upper reflection cover 131 corresponding to the air outlet 2. The above structure can make full use of the space in the reflection housing 13 to arrange the telescopic structure 30 and the cover plate 20, thereby realizing a miniaturized design.

As shown in fig. 1 to 7 and 9, in the present embodiment, the side wall of the upper reflection cover 131 has an installation boss 133 protruding outward, the telescopic structure 30 is disposed on the side wall of the installation boss 133, the cover plate 20 is pivotably disposed in the installation boss 133 through the pivot 21 and is fitted to the inner side wall of the installation boss 133, the lower reflection cover 132 includes a support ring 134 and a transparent plate 135 supported on the support ring 134, the air outlet 2 is disposed at a position of the support ring 134 opposite to the installation boss 133, a communication port 7 communicating with the air outlet 2 is formed between the side wall of the transparent plate 135 and the side wall of the installation boss 133, and in a case where the cover plate 20 is located at the closed position, the telescopic structure 30 extends out and abuts the cover plate 20 on the support ring 134 to close the communication port 7. In the above structure, the upper reflection cover 131 is provided with the mounting boss protruding outward only at the position corresponding to the air outlet to mount the telescopic structure 30 and the cover plate 20, and the other parts of the upper reflection cover 131 do not need to be expanded outward, so that the volume of the reflection cover 13 can be effectively reduced, and the miniaturization design of the cover body can be realized.

Note that, in the present embodiment, the cover sheet 20 is pivotally provided on the opposite side walls of the mounting boss 133 by the pivot pin to achieve rotation.

As shown in fig. 4 and 7, in the present embodiment, a hook 31 is provided on the telescopic structure 30, and a bayonet 32 engaged with the hook 31 is provided on the cover plate 20. The structure is simple, and the assembly is convenient. Of course, in other embodiments not shown in the drawings, the retractable structure may be provided with a bayonet, and the cover plate may be provided with a hook.

As shown in fig. 10 and 11, the present application also provides a cooking appliance, an embodiment of the cooking appliance according to the present application includes: a device body 70 and a cover 80. The cover 80 is disposed on the appliance body 70, and the cover 80 is the above cover. Since the cover 80 has advantages of easy cleaning, long service life and high safety, the cooking appliance having the same also has the advantages.

In this embodiment, the cooking appliance further includes a control board (not shown) disposed in the appliance body 70 or the cover 80, and the control board is electrically connected to the driving structure (the telescopic structure 30) of the cover and the pneumatic switch 40. Specifically, when the cover is placed on the device body and the cover is operated, wind starts to be generated. When the pneumatic switch 40 senses wind, the wind can push the pneumatic switch 40 to turn off the pneumatic switch 40, and after the control board receives a signal of turning off the pneumatic switch 40, the control board controls the telescopic structure 30 to retract to open the air outlet 2. After cooking, no fresh air enters the cover body to contact the pneumatic switch 40, the pneumatic switch 40 can be automatically closed, and after the control panel receives a signal that the pneumatic switch 40 is closed, the control panel controls the telescopic structure 30 to extend out to close the air outlet 2. Above-mentioned structure can realize the lid in windy opening air outlet 2, the purpose that the air outlet 2 was closed to the windless in the lid, needn't user manual selection, reduces user operation step, improves user's use and experiences.

As shown in fig. 10, in the present embodiment, the cooking appliance further includes a pressure cover, and the pressure cover and the cover body 80 are alternatively provided on the appliance body 70. The pressure cover is provided with an exhaust pipe and a pressure limiting valve arranged at the exhaust port of the exhaust pipe. Above-mentioned structure makes cooking utensil both can carry out pressure cooking and can toast the culinary art, and a tractor serves several purposes has reduced user's purchase quick-witted cost. Of course, in other embodiments not shown in the figures, the cooking appliance may also be other multifunctional pans capable of cooking food.

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 (11)

1. A cover, comprising:

a cover body (10) having an air duct (1);

the cover plate (20) is arranged on the cover body (10), and the cover plate (20) is provided with a closing position covering the air outlet (2) of the air duct (1) and an opening position far away from the air outlet (2);

a driving structure for driving the cover sheet (20) to switch between the closed position and the open position;

and the pneumatic switch (40) is in a connection state and a disconnection state, the pneumatic switch (40) is electrically connected with the driving structure, and the driving structure is controlled through the state change of the pneumatic switch (40).

2. Cover according to claim 1, characterized in that a pneumatic switch (40) comprises an actuation end, which is arranged in the air duct (1).

3. Cover according to claim 2, wherein the air inlet (3) and the air outlet (2) of the air duct (1) are located on opposite sides of the cover, the cover further comprising:

heating device (50), set up in between air intake (3) and air outlet (2), the trigger end setting of pneumatic switch (40) is in air intake (3) with between heating device (50).

4. The cover body according to claim 1, wherein the pneumatic switch (40) comprises a housing (41), a fixed pin (42) arranged in the housing (41), and a movable pin (43) which is arranged on the housing (41) in a penetrating manner and moves relative to the fixed pin (42), wherein a part of the movable pin (43) extends into the air duct (1), and the movable pin (43) is contacted with or separated from the fixed pin (42) under the action of wind in the air duct (1) so as to realize the switching of the state of the pneumatic switch (40).

5. The cover body according to claim 4, wherein the cover body (10) comprises a face cover (11), a lining (12) and a reflector (13) which are sequentially arranged from top to bottom, the air duct (1) comprises a channel in the reflector (13), the shell (41) is arranged between the face cover (11) and the lining (12), an avoiding opening (121) is arranged at the position of the lining (12) close to the air inlet (3) of the air duct (1), and the moving pins (43) are arranged in the avoiding opening (121) in a penetrating manner.

6. The cover body of claim 1, wherein the driving structure is a telescopic structure (30), the telescopic structure (30) is telescopically arranged on the cover body (10), a telescopic end of the telescopic structure (30) is connected with the cover plate (20), the cover plate (20) is controlled to be switched between the closed position and the open position by telescopic movement of the telescopic structure (30), and the telescopic structure (30) is controlled to be telescopic by state change of the pneumatic switch (40).

7. The cover according to claim 6, wherein the cover body (10) comprises an upper cover assembly (14) and a reflection cover (13) disposed below the upper cover assembly (14), the reflection cover (13) comprises an upper reflection cover (131) and a lower reflection cover (132) which are mutually covered, a channel between the upper reflection cover (131) and the lower reflection cover (132) forms at least part of the air duct (1), the air outlet (2) of the air duct (1) is disposed on the lower reflection cover (132), and the telescopic structure (30) and the cover plate (20) are disposed at a position of the upper reflection cover (131) corresponding to the air outlet (2).

8. The cover according to claim 7, characterized in that the upper reflection cover (131) has an outwardly protruding mounting boss (133) on a side wall thereof, the telescopic structure (30) is disposed on the side wall of the mounting boss (133), the cover sheet (20) is pivotably disposed in the mounting boss (133) and is fitted to an inner side wall of the mounting boss (133), the lower reflection cover (132) includes a support ring (134) and a transparent plate (135) supported on the support ring (134), the air outlet (2) is disposed at a position of the support ring (134) opposite to the mounting boss (133), a communication port (7) communicating with the air outlet (2) is formed between a side wall of the transparent plate (135) and a side wall of the mounting boss (133), and in the closed position of the cover sheet (20), the telescopic structure (30) extends out and abuts the cover plate (20) on the support ring (134) to seal the communication opening (7).

9. A cover as claimed in claim 6, characterised in that one of said telescopic structure (30) and said lid plate (20) is provided with a clasp (31), and the other of said telescopic structure (30) and said lid plate (20) is provided with a bayonet (32) which engages with said clasp (31).

10. A cooking appliance comprising:

an appliance body (70);

a cover (80) provided to the device body (70), wherein the cover (80) is the cover according to any one of claims 1 to 9.

11. The cooking appliance of claim 10, further comprising:

and the control board is arranged in the appliance body (70) or the cover body (80), and is electrically connected with the driving structure of the cover body (80) and the pneumatic switch (40).

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