CN207220679U

CN207220679U - Pot cover and pressure cooking utensil

Info

Publication number: CN207220679U
Application number: CN201720318071.5U
Authority: CN
Inventors: 陈伟; 胡玉新; 宁贵勇; 潘泽勇; 尹志雄; 李锦彬; 陈冬冬; 李振合; 赵丽军; 王明东; 高塬贵; 陈亮; 蔡文超; 成灿明
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-03-29
Filing date: 2017-03-29
Publication date: 2018-04-13
Anticipated expiration: 2027-03-29

Abstract

The utility model relates to a pot cover and pressure cooking utensil relates to cooking utensil technical field. The main technical scheme adopted is as follows: a pot cover is used on a cooking appliance, wherein the pot cover comprises an upper cover, a spiral cover and a limiting mechanism. Wherein the rotary cover is arranged on the upper cover and is used for being rotationally buckled on a pot body of the cooking utensil; the limiting mechanism limits the screw cap on the upper cover, so that the screw cap cannot rotate relative to the upper cover; when the pot cover is buckled on the pot body of the cooking appliance, the rotary cover is rotated to enable the cooking appliance to be in a cover closing state; after the cooking utensil is uncapped, the limit mechanism limits the screw cap. A pressure cooking utensil comprises the pot cover. The utility model discloses mainly used is after pressure cooking utensil uncaps, makes the spiral cover on the pot cover can be spacing on covering, can not rotate for the upper cover to the phenomenon that collision takes place to interfere with the pot body for the spiral cover when having avoided pressure cooking utensil to close the lid makes pressure cooking utensil close the lid smooth and easy.

Description

Pot cover and pressure cooking utensil

Technical Field

The utility model relates to a cooking utensil technical field especially relates to a pot cover and pressure cooking utensil.

Background

Pressure cooking appliances (e.g., pressure cookers, etc.) typically have a high pressure inside the pot when cooking food, and therefore require the lid and pot of the pressure cooking appliance to be fully closed to ensure cooking safety.

Taking an electric pressure cooker as an example, the electric pressure cooker comprises a cooker body and a cooker cover; wherein, an inner pot is arranged in the pot body; the cooker cover is internally provided with a cooker tooth ring. When the cooker cover is covered on the cooker body, the cooker tooth ring is sleeved at the opening part of the inner cooker and is connected with the opening part of the inner cooker in a sealing way. When the cooker cover needs to be opened, the inner pot is not moved, the cooker cover can be opened only by rotating the pot tooth ring about 30 degrees clockwise, the cooker cover is connected with the cooker body through the hinge shaft, the cooker cover is flicked (about less than 90 degrees) through the hinge spring, and at the moment, the cooker cover and the cooker body are in an uncovering state.

However, the inventors of the present invention have found that the pressure cooking appliance has at least the following problems: when a cooker cover and a cooker body are in an uncovering state, a cooker tooth ring arranged on the cooker cover is not limited, if the cooker tooth ring rotates, when the cooker tooth ring is closed again, a hanging table on the cooker tooth ring is not aligned with a gap of an inner cooker, so that the hanging table of the cooker tooth ring collides with the opening part of the inner cooker, and the pressure cooking appliance is damaged.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a lid and a pressure cooking device, and the main objective is that, after the pressure cooking device is opened, the screw cap on the lid can be limited on the upper cover and cannot rotate relative to the upper cover.

In order to achieve the above object, the utility model mainly provides the following technical scheme:

in one aspect, an embodiment of the present invention provides a pot cover for use on a cooking appliance, wherein the pot cover includes:

an upper cover;

the screw cap is arranged on the upper cover;

the limiting mechanism is used for limiting the rotary cover on the upper cover so that the rotary cover cannot rotate relative to the upper cover;

when the pot cover is buckled on the pot body of the cooking appliance, the rotary cover is rotated to enable the cooking appliance to be in a cover closing state;

after the cooking utensil is opened, the limiting mechanism limits the screw cap.

The purpose of the utility model and the technical problem thereof can be further realized by adopting the following technical measures.

Preferably, the limiting mechanism comprises:

the sliding groove is formed in the upper cover;

the sliding structure is arranged on the rotary cover, and when the sliding structure slides in the sliding groove, the rotary cover rotates relative to the upper cover;

a stop structure for limiting the screw cap by limiting the sliding structure at a first position within the chute.

Preferably, the sliding structure has a first end and a second end; wherein,

the first end is one end of the sliding structure, which is close to the screw cap;

the second end is the end of the sliding structure far away from the screw cap;

the diameter of the second end is greater than the diameter of the first end.

Preferably, the chute comprises:

the limiting hole is arranged at one end of the sliding groove;

the limiting groove is communicated with the limiting hole;

wherein the diameter of the limiting hole is not smaller than the diameter of the second end of the sliding structure;

the width of the limiting groove is larger than the diameter of the first end of the sliding structure, and the width of the limiting groove is smaller than the diameter of the second end of the sliding structure, so that the second end of the sliding structure cannot slide on the limiting groove.

Preferably, the stop structure comprises an elastic ejector rod positioned between the upper cover and the screw cover; wherein,

when the pot cover is buckled on the pot body of the cooking utensil, the elastic ejector rod is in a compressed state under the action of the pot body, and at the moment, the first end of the sliding structure is arranged in the limiting hole at one end of the sliding groove; rotating the rotary cover to enable the cooking utensil to be in a cover closing state, wherein the first end of the sliding structure is arranged at the other end of the sliding groove;

after the cooking utensil is opened, the screw cap is separated from the pot body, the elastic ejector rod is in a free state, and at the moment, the second end of the sliding structure is arranged in the limiting hole in the sliding groove.

Preferably, the elastic ejector rods are multiple and uniformly distributed.

Preferably, the elastic ejector rod is installed on the upper cover; the upper cover is provided with a mounting hole, one end of the elastic ejector rod is mounted in the mounting hole, and the other end of the elastic ejector rod is in contact with the spiral cover.

Preferably, the elastic carrier rod includes:

a top bar having a first end and a second end; wherein the first end is positioned in the mounting hole; the second end contacts the screw cap; the first end of the ejector rod is provided with a limiting bulge for limiting the first end in the mounting hole; the hole wall of the mounting hole is provided with a notch groove, so that the limiting protrusion can slide in the notch groove;

and one end of the spring is fixed with the upper cover, and the other end of the spring is fixed with the ejector rod.

Preferably, the upper cover comprises an inner cover; wherein, the spiral cover is arranged on the inner cover.

Preferably, the inner cover is provided with a plurality of hanging platforms matched with the inner ring of the screw cap so as to mount the screw cap on the inner cover.

Preferably, a circle of bosses are arranged on the inner top of the inner cover; the hanging table is a convex structure which is arranged on the boss and protrudes outwards along the radial direction; and the plurality of hanging platforms are uniformly distributed on the bosses.

On the other hand, the embodiment of the utility model provides a pressure cooking utensil, pressure cooking utensil includes any one above-mentioned pot cover.

Compared with the prior art, the utility model discloses a pressure cooking utensil has following beneficial effect at least:

the pot cover provided by the embodiment of the utility model is provided with the limiting mechanism, when the pot cover is buckled on the pot body, the rotary cover is not limited, and the cooking utensil is in a cover closing state by rotating the rotary cover to the first direction; or the rotating cover is rotated to the direction opposite to the first direction, so that the cooking utensil is rotated from a cover closing state to a cover opening state (the state is that the cover is still buckled on the pot body but is not hermetically connected with the pot body); after cooking utensil opened the lid, stop gear can carry on spacingly to the spiral cover, makes it can not rotate for the upper cover, like this, when closing the lid once more, spiral cover and the pot body can not have the problem of the misalignment that the background art mentioned to avoided spiral cover and the phenomenon that the pot body took place to interfere the collision, made pressure cooking utensil close the lid smoothly, improved user's experience.

Further, the utility model discloses stop gear in the embodiment includes: the sliding groove is arranged on the upper cover, and the sliding structure and the stopping structure are arranged on the rotary cover; when the sliding structure slides in the sliding groove, the rotary cover rotates relative to the upper cover. The stop structure limits the screw cap by limiting the sliding structure at a first position in the sliding groove. Through the arrangement, the purpose of limiting the spiral cover on the upper cover can be realized only by limiting the sliding of the sliding structure in the sliding groove through the stop structure, so that the limiting mechanism is simple in structure and convenient to operate.

Further, the embodiment of the utility model provides a diameter through making the last first end that is close to the spiral cover setting of sliding structure is less than the diameter that is close to the second end that the upper cover set up to make the width of spacing groove on the spout be less than the diameter of sliding structure second end, be greater than between the first end of sliding structure. Through setting up like this, after cooking utensil uncaps, only need under the effect of locking structure, make sliding structure's second end arrange in the spacing hole of spout, because sliding structure's second end can not slide in the spacing groove, and then can not slide along the spout to the realization carries out spacing purpose to the spiral cover. In addition, when the pot cover of this embodiment is buckled on the pot body, only need under the effect of retaining structure, make sliding structure's first end arrange in the spout to realize rotatory spiral cover and close the lid or the mesh of uncapping.

Further, the embodiment of the utility model provides a through set the elastic ejector pin that is located between upper cover and the spiral cover with detent structure, utilize when the pot cover lock is on the pot body, the pot body can exert the principle of an ascending effort to the spiral cover, realize that stop gear does not carry out spacing, the back of uncapping to the spiral cover when cooking utensil closes the lid state and carries out spacing purpose.

On the other hand, the embodiment of the utility model provides a still provides a pressure cooking utensil, wherein, this pressure cooking utensil includes foretell pot cover, consequently, it has above-mentioned arbitrary beneficial effect, it is not repeated here in unnecessary one.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of an upper cover according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a screw cap according to an embodiment of the present invention;

FIG. 3 is a bottom view of the screw cap structure of FIG. 2;

FIG. 4 is an enlarged schematic view of the sliding mechanism;

fig. 5 is a schematic structural view of the cover of the cooking utensil and the cover of the pot body according to the embodiment of the present invention;

3 FIG. 3 6 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 structure 3 shown 3 in 3 FIG. 3 5 3, 3 taken 3 at 3 section 3 A 3- 3 A 3; 3

FIG. 7 is an enlarged view of the structure of FIG. 6 at B;

FIG. 8 is an enlarged view of the structure of FIG. 6 at C;

FIG. 9 is an enlarged view of the structure of FIG. 6 at D;

fig. 10 is a schematic structural view of the lid of the pot lid according to the embodiment of the present invention after the lid is opened;

3 FIG. 3 11 3 is 3 a 3 cross 3- 3 sectional 3 view 3 of 3 the 3 structure 3 shown 3 in 3 FIG. 3 10 3, 3 taken 3 at 3 section 3 A 3- 3 A 3; 3

FIG. 12 is an enlarged view of the structure of FIG. 11 at B;

FIG. 13 is an enlarged view of the structure of FIG. 11 at C;

fig. 14 is an enlarged view of the structure of fig. 11 at D.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Example 1

The embodiment provides a pot cover used on a pressure cooking appliance; as shown in fig. 1, fig. 2, fig. 3, fig. 5 and fig. 10, the pot lid in the present embodiment includes an upper lid 1, a screw lid 2 and a limiting mechanism. Wherein, the screw cap 2 is arranged on the upper cover 1. The limiting mechanism is used for limiting the screw cap 2 on the upper cap 1, so that the screw cap 2 cannot rotate relative to the upper cap 1. When the pot cover in the embodiment is buckled on the pot body of the cooking appliance, the cooking appliance is in a cover closing state (namely, a sealing pressure-bearing state) by rotating the rotary cover 2. After the cooking utensil is uncapped (namely, the pot cover is not buckled on the pot body), the limiting mechanism limits the screw cap 2, so that the screw cap 2 cannot rotate relative to the upper cover.

Preferably, the upper cover 1 in the embodiment and the following embodiments is hinged with the pot body on the cooking utensil.

According to the pot cover provided by the embodiment, the limit mechanism is arranged, when the pot cover is buckled on the pot body, the limit is not carried out on the screw cover 2, and the cooking utensil is in a cover closing state by rotating the screw cover 2 to the first direction; or the rotary cover 2 is rotated to the direction opposite to the first direction, so that the cooking utensil is rotated from a cover closing state to a cover opening state (the state is that the cover is still buckled on the pot body but is not hermetically connected with the pot body); after cooking utensil opened the lid (the pot cover is for detaining on the pot body), stop gear can carry on spacingly to spiral cover 2, makes it can not rotate for upper cover 1, like this, when closing the lid once more, spiral cover 2 and the pot body can not have the problem of the misalignment that the background art mentioned to avoid spiral cover 2 and the phenomenon that the pot body took place to interfere the collision, made pressure cooking utensil close the lid smooth and easy, improved user's experience.

Example 2

Preferably, the present embodiment provides a pot cover, as shown in fig. 1 and 2, and fig. 5 to 14, compared with the previous embodiment, the present embodiment designs the limiting mechanism as follows:

the stop gear in this embodiment includes: chute 11, sliding structure 22 and stop structure. Wherein, the chute 11 is arranged on the upper cover 1. The sliding structure 22 is arranged on the screw cap 2, wherein the screw cap 2 rotates relative to the upper cap 1 when the sliding structure 22 slides in the sliding groove 11 (here, the sliding groove can also be arranged on the screw cap, and the sliding structure is correspondingly arranged on the upper cap; however, the embodiment preferably arranges the sliding groove on the upper cap and the sliding structure on the screw cap, so that the arrangement is beneficial for the user to control the sliding structure through the handle, and further control the rotation of the screw cap). The stop structure limits the screw cap 2 by limiting the sliding structure 22 in a first position within the sliding channel 11 (the first position here means that the sliding structure is located in a limiting hole mentioned below).

Through the arrangement, the purpose of limiting the spiral cover 2 on the upper cover 1 can be realized only by limiting the sliding of the sliding structure 22 in the sliding groove 11 through the stop structure, so that the limiting mechanism is simple in structure and convenient to operate.

Example 3

Preferably, the present embodiment provides a pot cover, compared to embodiment 2, as shown in fig. 1, fig. 2, fig. 4 to fig. 14, the present embodiment further designs the sliding structure 22 as follows:

the sliding structure 22 in this embodiment has a first end 221 and a second end 222. Wherein, the first end 221 is an end of the sliding structure 22 disposed near the screw cap 2; the second end 222 is the end of the sliding structure 22 that is disposed away from the screw cap 2 (i.e., the end disposed close to the upper cap 1); also, the diameter of the second end 222 is larger than the diameter of the first end 221.

Accordingly, the slide groove 11 includes a stopper hole 111 provided at one end of the slide groove 11 and a stopper groove 112 communicating with the stopper hole 111. The diameter of the position-limiting hole 111 is not smaller than the diameter of the second end 222 of the sliding structure 22, so that both the first end 221 and the second end 222 of the sliding structure 22 can be disposed in the position-limiting hole 111. The width of the limit groove 112 (the distance between two groove walls on the limit groove 112) is larger than the diameter of the first end 221 on the sliding structure 22, and the width of the limit groove 112 is smaller than the diameter of the second end 222 on the sliding structure 22, so that the second end 222 of the sliding structure 22 cannot slide on the limit groove 112; so that the first end 221 of the sliding structure 22 can slide in the retaining groove 112, and the second end 222 of the sliding structure 22 can not enter the retaining groove 112.

Through the arrangement, after the cover of the cooking appliance is opened, the second end of the sliding structure 2 is placed in the limiting hole 111 of the sliding groove 11 only under the action of the stopping structure, and the second end 222 of the sliding structure 22 cannot slide into the limiting groove 112 and further cannot slide along the sliding groove 11, so that the purpose of limiting the rotary cover 2 is achieved. In addition, when the pot cover of the embodiment is fastened on the pot body, the first end 221 of the sliding structure 22 is placed in the sliding groove 11 only under the action of the stopping structure, so that the purpose of closing or opening the cover by rotating the rotary cover is achieved.

Here, the sliding structure 22 may be designed as a pin-like structure that satisfies the above conditions.

Example 4

Preferably, the present embodiment provides a pot cover, compared with embodiment 3, as shown in fig. 5 to 14, the present embodiment further designs the stop structure in the limit mechanism as follows:

the stopping structure in the embodiment comprises an elastic mandril 3 positioned between the upper cover 1 and the screw cover 2; wherein, when the pot lid lock in this embodiment is on cooking utensil's the pot body, under the effect of the pot body, the pot body can be exerted for an ascending effort of spiral cover, and this effort can make elastic ejector pin 3 be in compression state, and at this moment, the top of spiral cover 2 is close to or laminates the interior top of upper cover 1, and at this moment, the spacing hole 111 of spout one end department is arranged in to the first end on the sliding construction 22. The cover 2 is rotated to make the cooking utensil in a closed state (see the state shown in fig. 5 to 9), and the first end of the sliding structure 22 is placed at the other end of the sliding chute.

After the culinary art is finished, rotate spiral cover 2, make sliding structure 22's first end arrange in the spacing downthehole 111 of spout one end department, open cooking utensil's pot cover, at this moment, spiral cover 2 and the separation of pot body, the pot body can not exert the effort to spiral cover 2 and elasticity ejector pin 13, so, elasticity ejector pin 13 is in free state, at this moment, sliding structure 22's second end is arranged in the spacing downthehole 111 in the spout, sliding structure 22 can not slide in the spout like this, and then restricted spiral cover 2 and rotated for upper cover 1. (see fig. 10-14 for details, in which the top of the screw cap 2 is far away from the inner top of the upper cap 1 and close to or attached to the hanging table 12 of the upper cap).

This embodiment utilizes when the pot cover lock is on the pot body, and the pot body can apply the principle of an upward effort to the spiral cover through setting the locking structure to the elasticity ejector pin that is located between upper cover and the spiral cover, realizes that stop gear does not carry out spacing, uncap the back to the spiral cover and carry out spacing purpose to the spiral cover when cooking utensil closes the lid state.

Preferably, as shown in fig. 5 and 10, the elastic push rods 3 are plural and uniformly distributed. Preferably, the number of the elastic push rods 3 is 3, and the elastic push rods are distributed at equal angles.

Preferably, as shown in fig. 1, 5 and 10, the elastic push rod 3 is mounted on the upper cover 1; wherein, the upper cover 1 is provided with a mounting hole 13, one end of the elastic mandril 3 is arranged in the mounting hole 13, and the other end is contacted with the screw cover.

Preferably, as shown in fig. 8 and 13, the elastic stem 3 includes a stem 31 and a spring 32. Wherein the jack 31 has a first end and a second end. Wherein, the first end of the ejector rod 31 is positioned in the mounting hole, and the second end contacts the screw cap. A first end of the ejector rod 31 is provided with a limiting bulge for limiting the first end of the ejector rod in the mounting hole; correspondingly, the hole wall of the mounting hole is provided with a notch groove, so that the limiting protrusion can slide in the notch groove when the elastic ejector rod is changed from a compression state to a free state and from the free state to the compression state. Preferably, the two limiting bulges are respectively arranged on two opposite sides of the first end of the ejector rod; correspondingly, the gap groove is two and is arranged oppositely. Here, the first end of the ejector rod 31 can be limited in the mounting hole by providing the limiting protrusion and the notch groove.

One end of the spring 32 is fixed to the upper cover, and the other end is fixed to the plunger 31. Preferably, the top rod 31 is hollow inside, and the spring 32 is installed inside the top rod 31.

Example 5

Preferably, the present embodiment provides a pot cover, and compared with the above embodiments, the upper cover in the present embodiment includes an inner cover and an outer cover. Wherein, the spiral cover is arranged on the inner cover, in particular, the spiral cover is arranged on the inner top of the inner cover.

Preferably, as shown in fig. 1 to 3, the inner lid is provided with a plurality of hanging stands 12 which are engaged with the inner ring 21 of the screw cap 2 to mount the screw cap 12 on the inner lid. Preferably, a circle of bosses are arranged on the inner top of the inner cover; the hanging table 12 is a convex structure which is arranged on the boss and protrudes outwards along the radial direction; and a plurality of hanging platforms 12 are evenly distributed on the boss. And the screw cap 2 can move up and down between the inner top of the inner cap and the hanging table 12 (the up and down in this case refers to the relative position when the pot cover is fastened on the pot body).

Preferably, as shown in fig. 1 to 3, the inner ring 21 of the screw cap 2 is provided with a plurality of notches 210 recessed outward in the radial direction. Here, the notch 210 is provided mainly to facilitate the fitting of the screw cap 1 to the inner cap. Wherein the number of the recesses 210 is the same as the number of the hanging stands 12 provided on the inner lid. During assembly, the notch 210 on the screw cap firstly passes through the hanging table 12 on the inner cap, and then the screw cap 2 is rotated for an angle, so that the edge of the inner ring of the screw cap 2 can be hung by the hanging table 12.

Preferably, as shown in fig. 2 and 3, when the screw cap 2 is installed on the inner cap, the contact friction force between the screw cap 2 and the inner cap is large during the rotation of the screw cap 2 relative to the inner cap, and the phenomenon of locking is easily occurred. Based on this problem, this embodiment sets up convex hull 24 on spiral cover 2, makes convex hull 24 and inner cup contact to reduce the contact frictional force between spiral cover 2 and the inner cup, avoid the dead phenomenon of card to take place. Preferably, as shown in fig. 2 and 3, the screw cap 2 is provided with a hanging platform 23 for cooperating with the pot body. Preferably, the outer cover of the pot cover is further provided with a rotating handle, the rotating handle is connected with the sliding structure and used for driving the sliding structure to slide in the sliding groove, and the rotating handle is operated to drive the rotating cover to rotate.

Example 6

In another aspect, the present embodiment provides a pressure cooking appliance, wherein the pressure cooking appliance includes a lid and a body. Wherein, the pot cover is the pot cover of any one of the above embodiments. The pot body comprises an inner pot; wherein, the rotary cover in the pot cover is rotationally buckled with the inner pot to realize the cover closing of the pressure cooking appliance. The upper cover of the pot cover is hinged with the pot body.

Preferably, the pressure cooking appliance in the embodiment is a common pressure cooker, an electric pressure cooker or an electric pressure cooker.

To sum up, the embodiment of the utility model provides a pot cover and pressure cooking utensil uncaps the back at pressure cooking utensil, can be spacing on the upper cover with the spiral cover in the pot cover, make it can not rotate for the upper cover to when closing the lid once more, spiral cover and pot body can not have the problem of not counterpointing that the background art mentioned, thereby avoided spiral cover and the phenomenon that the pot body took place to interfere the collision, make pressure cooking utensil close the lid smoothly, improve user's experience.

In summary, it is readily understood by those skilled in the art that the advantageous modes described above can be freely combined and superimposed without conflict.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A lid for a cooking appliance, the lid comprising:

an upper cover;

the screw cap is arranged on the upper cover;

2. The lid according to claim 1, characterized in that said stop means comprise:

the sliding groove is formed in the upper cover;

3. The lid as claimed in claim 2, wherein the sliding structure has a first end and a second end; wherein,

the second end is the end of the sliding structure far away from the screw cap;

the diameter of the second end is greater than the diameter of the first end.

4. The lid according to claim 3, characterized in that said chute comprises:

the limiting hole is arranged at one end of the sliding groove;

the limiting groove is communicated with the limiting hole;

the diameter of the limiting hole is not smaller than that of the second end of the sliding structure;

5. The lid as claimed in claim 4, wherein the stop structure comprises a resilient stem between the upper lid and the screw cap; wherein,

6. The lid for pot as claimed in claim 5, wherein said elastic post rod is plural and evenly distributed.

7. The lid according to claim 5, wherein the elastic jack is mounted on the upper lid; the upper cover is provided with a mounting hole, one end of the elastic ejector rod is mounted in the mounting hole, and the other end of the elastic ejector rod is in contact with the spiral cover.

8. The lid according to claim 7, characterized in that said elastic jack comprises:

9. The lid according to any one of claims 1 to 8, characterized in that said upper lid comprises an inner lid; wherein, the spiral cover is arranged on the inner cover.

10. The lid of claim 9, wherein the inner lid has a plurality of hanging platforms that engage the inner ring of the screw cap to mount the screw cap to the inner lid.

11. The lid as claimed in claim 10, wherein a ring of bosses are provided on the inner top of the inner lid; the hanging table is a convex structure which is arranged on the boss and protrudes outwards along the radial direction; and the plurality of hanging platforms are uniformly distributed on the bosses.

12. Pressure cooking appliance, characterized in that it comprises a lid according to any one of claims 1 to 11.