Cooker cover and pressure cooker

Abstract

The utility model provides a pot cover and pressure cooker, the pot cover comprises a cover body and an elastic sealing ring, the elastic sealing ring is sleeved on the cover body along the circumferential direction, the elastic sealing ring comprises an upper fixing ring, a contact ring and a lower fixing ring which are connected in sequence, and both the upper fixing ring and the lower fixing ring are connected with the side surface of the cover body. The outer diameter of the contact ring in a non-stress state is larger than the outer diameter of the upper fixing ring and the outer diameter of the lower fixing ring. The pot cover further comprises a driving assembly, and the driving assembly can eject the contact ring outwards from the inner side of the contact ring. The cooker cover is clamped with the inner wall of the cooker body in the mode that the elastic sealing ring is ejected out through the driving assembly, compared with an existing clamp type pressure cooker, the complexity and the material consumption of the cooker cover and the edge structure of the cooker body can be effectively reduced, the manufacturing cost of the pressure cooker is further reduced, and the appearance of the cooker cover is similar to that of a common cooker. And a user can be effectively prevented from fear of the pressure cooker.

Description

Technical Field

[0001] This utility model relates to the field of kitchenware, specifically to a pot lid and a pressure cooker including the pot lid. Background Technology

[0002] Pressure cookers are popular among consumers because they are energy-saving, time-saving, and have multiple cooking functions. Pressure cookers utilize the physical phenomenon that the boiling point of a liquid increases under higher pressure. By applying pressure to water, the water can reach a higher temperature without boiling, thus speeding up the cooking process.

[0003] In existing pressure cooker structures, the lid and pot body are generally locked using clamps or teeth. Clamp-type pressure cookers use a drive mechanism on the lid to move the clamps in and out, locking the lid and pot body together to form a sealed state inside the pot. They use relatively thick metal clamps to withstand the increased pressure inside the pot. Screw-on pressure cookers, on the other hand, have several teeth distributed on the pot body and lid. By rotating the lid, the teeth on the lid overlap with the teeth on the pot body to achieve a locking effect between the lid and the pot body.

[0004] However, because the clamps of clamp-type pressure cookers need to withstand high pressure, the clamps are usually made of thicker metal, and the manufacturing process is complex, resulting in higher production costs. On the other hand, screw-on pressure cookers require precise alignment of the jaws during use, making them inconvenient to operate and difficult to align. Furthermore, current pressure cookers are often visually perceived as potentially dangerous pressure vessels, and many users have a fear of pressure containers.

[0005] Therefore, how to provide a pressure cooker structure that is simple in structure, easy to operate, and similar in appearance to ordinary cookware has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] This utility model aims to solve one of the technical problems in related technologies to a certain extent. To this end, this utility model provides a pot lid and a pressure cooker including the pot lid. The pot lid has a low structural complexity, which can reduce the manufacturing cost of the pressure cooker. It is also convenient to use, and the appearance of the pot lid is similar to that of ordinary cookware, which can effectively avoid users' fear of pressure cookers.

[0007] To achieve the above objectives, as one aspect of this utility model, a pot lid is provided, including a lid body and an elastic sealing ring. The elastic sealing ring is circumferentially sleeved on the lid body. The elastic sealing ring includes an upper fixing ring, a contact ring, and a lower fixing ring connected in sequence. The upper fixing ring and the lower fixing ring are both connected to the side of the lid body, and the outer diameter of the contact ring in the non-stressed state is larger than the outer diameters of the upper fixing ring and the lower fixing ring.

[0008] The pot lid also includes a drive assembly that can push the contact ring outward from the inside of the contact ring.

[0009] Optionally, the outer diameter of the contact ring first increases and then decreases along the axial direction of the pot lid.

[0010] Optionally, the contact ring has a circular arc shape in cross-section along the radial direction of the pot lid.

[0011] Optionally, the outer surface of the contact ring has at least one annular sealing ridge that extends around the axis of the lid.

[0012] Optionally, the drive assembly includes a drive mechanism and a plurality of movable blocks, the first ends of the plurality of movable blocks being located inside the cover and connected to the drive mechanism, the drive mechanism being capable of driving the plurality of movable blocks to extend outward from the cover, so that the second ends of the plurality of movable blocks press outward against the contact ring.

[0013] Optionally, the cover has a drive receiving cavity inside, and the cover has multiple clearance openings corresponding to the positions of the elastic sealing ring along its circumferential side. The drive mechanism includes a rotating disk movably disposed in the drive receiving cavity. The rotating disk is rotatable about the axis of the cover. The rotating disk has multiple drive grooves extending circumferentially. The distance between each point on the drive groove and the axial direction of the rotating disk gradually changes circumferentially. The first end of the movable block has a mating part, which is received in the drive groove. The movable block can move radially in and out of the clearance openings as the rotating disk rotates.

[0014] Optionally, the drive mechanism further includes a handle, which is movably disposed on the top of the cover and can rotate about the axis of the cover, and the handle is fixedly connected to the rotating disk.

[0015] Optionally, the cover includes a top cover and a base. The base includes a lower housing, a reinforcing ring, and a connecting cylinder. The top end of the connecting cylinder is connected to the top cover, and the bottom end of the connecting cylinder is fixedly connected to the reinforcing ring. The reinforcing ring is fixedly disposed on the side of the lower housing facing the top cover. The elastic sealing ring is sleeved on the outside of the top cover and the reinforcing ring. A plurality of clearance openings are formed in the connecting cylinder.

[0016] Optionally, the movable block includes a connecting portion and an arc-shaped contact portion connected sequentially from a first end to a second end. The connecting portion is radially accessible from the cover, and the arc-shaped contact portion extends around the axis of the cover and is located between the cover and the elastic sealing ring.

[0017] As a second aspect of this utility model, a pressure cooker is provided, the pressure cooker including a pot body and a pot lid provided in the embodiment of this utility model, the inner wall of the pot body having an inner boss extending around the axis of the pot body, and the plurality of movable blocks of the pot lid being able to press the elastic sealing ring of the pot lid into contact with the bottom of the inner boss when the pot lid is placed on the pot body.

[0018] Optionally, the inner wall of the pot body has an inner groove extending around the axis of the pot body, and the inner boss is located on the side of the inner groove facing the opening at the top of the pot body.

[0019] In the pot lid and pressure cooker provided by this utility model, the pot lid engages with the inner wall of the pot body by pushing out the elastic sealing ring through a driving component. Compared with existing clamp-type pressure cookers, this effectively reduces the complexity of the lid and pot body edge structure and the amount of material used, thereby reducing the manufacturing cost of the pressure cooker. Furthermore, since the driving component and elastic sealing ring extend radially in all directions, there is no need to control the relative rotation angle between the lid and the pot body when using the pot lid provided by this utility model. Compared with existing screw-on pressure cookers, this improves the convenience of using the pressure cooker and enhances the user experience.

[0020] Furthermore, the outer diameter of the contact ring in the middle area of ​​the elastic sealing ring is larger than that of other parts. Therefore, after the lid is fastened to the top of the pot body, the contact ring automatically fills the area below the inner boss or inside the groove, which can reduce the elastic deformation of the elastic sealing ring in the locked state and ensure the sealing effect of the pressure cooker.

[0021] Furthermore, the lid structure provided by this invention differs significantly from existing pressure cooker structures. The corresponding transmission structure of the drive component can be located inside the lid, making the lid's appearance similar to that of an ordinary cookware. Users are less likely to mistake the lid provided by this invention, or the pressure cooker structure using this lid, for a dangerous pressure vessel, effectively preventing users from developing a fear of pressure cookers. Moreover, the lid provided by this invention has a wide range of applications and can be adapted to some existing pots with bosses or grooves. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the structure of the pot lid provided in the embodiment of the present invention in the retracted state of the drive assembly;

[0024] Figure 2 This is a schematic diagram of the structure of the pot lid provided in the embodiment of the present invention when the drive assembly is extended;

[0025] Figure 3 This is a partially enlarged schematic diagram of the pot lid in the retracted state of the movable block, provided in an embodiment of this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the elastic sealing ring in the pot lid provided in this embodiment of the utility model;

[0027] Figure 5 This is a schematic diagram of the pressure cooker in the unlocked state according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the pressure cooker in the locked state provided in this embodiment of the utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the base in the pot lid provided in this embodiment of the utility model;

[0030] Figure 8 This is a partial structural schematic diagram of the pressure cooker provided in this embodiment of the utility model;

[0031] Figure 9 This is a partial structural schematic diagram of the pressure cooker provided in this embodiment of the utility model;

[0032] Figure 10 This is a schematic diagram of the structure of the pot body in the pressure cooker provided in this embodiment of the utility model. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this utility model and should not be construed as limiting it.

[0034] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this utility model. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0035] To solve the above-mentioned technical problems, as one aspect of this utility model, a pot lid is provided, such as... Figure 1 , Figure 2As shown, the pot lid includes a lid body 100 and an elastic sealing ring 200. The elastic sealing ring 200 is circumferentially sleeved on the lid body 100. The elastic sealing ring 200 includes an upper fixing ring 210, a contact ring 220, and a lower fixing ring 230 connected in sequence. The upper fixing ring 210 and the lower fixing ring 230 are both connected to the side of the lid body 100, and the outer diameter of the contact ring 220 in the non-stressed state is larger than the outer diameters of the upper fixing ring 210 and the lower fixing ring 230. The pot lid also includes a driving assembly 1, which can push the contact ring 220 outward from the inside of the contact ring 220.

[0036] like Figures 5 to 6 , Figure 10 As shown, it can be understood that the pot lid provided by this utility model can be used with a pot lid having a boss (i.e., Figure 5 The inner boss 11 shown or the groove shown (i.e. Figure 10 The pot body 10 with the inner groove 12 structure shown in the figure achieves a high-pressure sealing function. After the pot lid provided by this utility model is placed on the pot body 10, the drive component 1 can extend to all sides and push the elastic sealing ring 200 to cooperate with the protrusion or groove structure on the inner wall of the pot body 10, thereby locking the pot lid and the pot body 10 and sealing the gap between them with the elastic sealing ring 200, thereby achieving a high-pressure sealing effect and ensuring the stability of the gas pressure inside the pot when the pressure cooker heats the food.

[0037] The lid provided by this invention engages with the inner wall of the pot body 10 by pushing out the elastic sealing ring 200 through the driving component 1. Compared with existing clamp-type pressure cookers, this effectively reduces the complexity of the lid and the edge structure of the pot body 10, as well as the amount of material used, thereby reducing the manufacturing cost of the pressure cooker. Furthermore, since the driving component 1 and the elastic sealing ring 200 extend radially in all directions, there is no need to control the relative rotation angle between the lid and the pot body 10 when using the lid provided by this invention. Compared with existing screw-on pressure cookers, this improves the convenience of using the pressure cooker and enhances the user experience.

[0038] Furthermore, the outer diameter of the contact ring 220 in the middle region of the elastic sealing ring 200 is larger than that of other parts. Thus, after the lid is fastened to the top of the pot body 10, the contact ring 220 automatically fills the area below the inner boss 11 or inside the groove 12, which can reduce the elastic deformation of the elastic sealing ring 200 in the locked state and ensure the sealing effect of the pressure cooker.

[0039] Furthermore, the lid structure provided by this utility model differs significantly from existing pressure cooker structures. The corresponding transmission structure of the drive component 1 can be located inside the lid, making the lid's appearance similar to that of an ordinary cookware. Users are less likely to mistake the lid provided by this utility model, or the pressure cooker structure using this lid, for a dangerous pressure vessel, effectively preventing users from developing a fear of pressure cookers. Moreover, the lid provided by this utility model has a wide range of applications and can be adapted to some existing pots with bosses or grooves.

[0040] As an optional embodiment of this utility model, the driving assembly includes a driving mechanism 300 and a plurality of movable blocks 400. The first end (i.e., the inner end) of the plurality of movable blocks 400 is located inside the cover 100 and connected to the driving mechanism 300. The driving mechanism 300 can drive the plurality of movable blocks 400 to extend outward from the cover 100 so that the second end (i.e., the outer end) of the plurality of movable blocks 400 presses the elastic sealing ring 200 outward.

[0041] In this embodiment of the utility model, after the lid is placed on the pot body 10, the driving mechanism 300 can drive the movable block 400 to extend outwards, and the second end of the movable block 400 can squeeze out the elastic sealing ring 200, so that the elastic sealing ring 200 can cooperate with the protrusion or groove structure on the inner wall of the pot body 10, thereby locking the lid and the pot body 10 and sealing the gap between them with the elastic sealing ring 200, thereby achieving a high-pressure sealing effect and ensuring the stability of the gas pressure inside the pot when the pressure cooker heats food.

[0042] As a preferred embodiment of this utility model, such as Figure 1 , Figure 3 , Figures 8 to 9 As shown, the movable block 400 includes a connecting portion 410 and an arc-shaped contact portion 420 connected sequentially from the first end to the second end. The connecting portion 410 can enter and exit the cover 100 radially, and the arc-shaped contact portion 420 extends around the axis of the cover 100 and is located between the cover 100 and the elastic sealing ring 200.

[0043] In this embodiment of the invention, the second end of the movable block 400 has an arc-shaped contact portion 420 that can extend to the outside of the pot lid. The arc-shaped contact portion 420 can push out the truncated elastic sealing ring 200 in the corresponding arc length area, ensuring the length of the elastic sealing ring 200 engaged with the inner wall of the pot body 10, thereby ensuring the sealing performance of the pressure cooker.

[0044] As an optional embodiment of this utility model, such as Figure 7 As shown, the cover 100 has a drive receiving cavity inside, and the cover 100 has multiple clearance openings 101 along its circumferential side corresponding to the positions of the elastic sealing ring 200, such as... Figures 1 to 6As shown, the drive mechanism 300 includes a rotating disk 310 movably disposed in the drive receiving cavity. The rotating disk 310 is rotatable about the axis of the cover 100, such as... Figures 8 to 9 As shown, the rotating disk 310 has a plurality of circumferentially extending drive grooves 311. The distance between each point on the drive groove 311 and the axial direction of the rotating disk 310 gradually changes along the circumferential direction. The first end of the movable block 400 has a mating part 430, which is accommodated in the drive groove 311. The movable block 400 can move in and out of the clearance opening 101 radially as the rotating disk 310 rotates.

[0045] That is, in this embodiment of the present invention, the radially varying drive groove 311 drives the mating part 430 at the first end of the movable block 400 to move radially, thereby driving the movable block 400 as a whole to move radially, so as to push out the surrounding elastic sealing rings 200.

[0046] Optionally, such as Figures 8 to 9 As shown, the drive groove 311 extends spirally around the axis of the rotating disk 310.

[0047] In other embodiments of this utility model, the mating part 430 can also be moved by other forms of transmission structures such as linear motors, cylinders, and lead screw nuts.

[0048] As an optional embodiment of this utility model, such as Figures 1 to 2 As shown, the drive mechanism 300 also includes a handle 320, which is movably disposed on the top of the cover 100 and can rotate around the axis of the cover 100. The handle 320 is fixedly connected to the rotating disk 310.

[0049] That is, the handle 320 serves as the handhold for the pot lid and also as a force-applying structure for the user. The user can rotate the rotating disk 310 by twisting the handle 320, thereby controlling the extension and retraction of the movable block 400 into the pot lid.

[0050] As an optional embodiment of this utility model, such as Figures 1 to 2 As shown, the cover 100 includes a top cover 110 and a base 120, and a drive receiving cavity is formed between the top cover 110 and the base 120.

[0051] As a preferred embodiment of this utility model, such as Figure 7 As shown, the base 120 has a plurality of guide blocks 125 on the surface facing the top cover 110, and the movable block 400 has at least one guide groove. The guide groove extends along the direction in which the movable block 400 enters and exits the clearance opening 101, and the guide block 125 is accommodated in the guide groove.

[0052] In a preferred embodiment of the present invention, the guide blocks 125 are arranged in pairs, and each pair of guide blocks 125 is accommodated in a pair of guide grooves at the bottom of each of the movable blocks 400.

[0053] Optionally, such as Figure 7 As shown, the guide block 125 extends in the direction of the corresponding movable block 400 entering and exiting the clearance opening 101.

[0054] As an optional embodiment of this utility model, such as Figure 3 , Figure 7 As shown, the base 120 includes a lower housing 121, a reinforcing ring 122, and a connecting cylinder 123. The top end of the connecting cylinder 123 is connected to the top cover 110, and the bottom end of the connecting cylinder 123 is fixedly connected to the reinforcing ring 122. The reinforcing ring 122 is fixedly disposed on the side of the lower housing 121 facing the top cover 110. The elastic sealing ring 200 is sleeved on the outside of the top cover 110 and the reinforcing ring 122. A plurality of clearance openings 101 are formed in the connecting cylinder 123.

[0055] Optionally, such as Figure 7 As shown, the reinforcing ring 122 and the connecting cylinder 123 are integrated.

[0056] Optionally, such as Figure 7 As shown, the clearance opening 101 is a notch formed at the top edge of the connecting cylinder 123.

[0057] Optionally, such as Figure 1 As shown, the top cover 110 is fixedly connected to the lower housing 121 by fasteners 720.

[0058] As an optional embodiment of this utility model, such as Figure 3 , Figure 4 As shown, the outer diameter of the contact ring 220 first increases and then decreases along the axial direction of the pot lid, so that the middle part of the contact ring 220 bulges outwards to achieve a fit with the inner boss 11 or groove 12 on the inner wall of the pot body 10.

[0059] As an optional embodiment of this utility model, such as Figure 3 , Figure 4 As shown, the cross-section of the contact ring 220 along the radial direction of the pot lid (i.e., the cross-section shown in the figure) is arc-shaped.

[0060] As a preferred embodiment of this utility model, such as Figure 3 As shown, the outer surface of the contact ring 220 has at least one annular sealing ridge 222. The annular sealing ridge 222 extends around the axis of the pot lid. The annular sealing ridge 222 can increase the pressure between the corresponding area of ​​the contact ring 220 and the inner wall of the pot, thereby further ensuring the sealing effect of the pressure cooker.

[0061] Optionally, such as Figure 3 As shown, the outer surface of the contact ring 220 has multiple annular sealing ridges 222.

[0062] As an optional embodiment of this utility model, such as Figure 3 As shown, the lower fixing ring 230 is clamped between the lower housing 121 and the reinforcing ring 122.

[0063] As an optional embodiment of this utility model, such as Figure 3 As shown, the lower fixing ring 230 includes a first connecting portion 231, a second connecting portion 232, and a third connecting portion 233 connected in sequence. The outer edge of the first connecting portion 231 is connected to the contact ring 220, and the inner edge of the first connecting portion 231 extends radially. The third connecting portion 233 is sandwiched between the bottom surface of the reinforcing ring 122 and the lower housing 121. The second connecting portion 232 is connected between the inner edge of the first connecting portion 231 and the outer edge of the third connecting portion 233. The shape of the lower fixing ring 230 corresponds to the shape of the gap between the lower housing 121 and the reinforcing ring 122, so as to improve the tightness of the connection between the lower fixing ring 230 and the base 120.

[0064] As a second aspect of this utility model, a pressure cooker is provided, such as... Figures 5 to 6 As shown, the pressure cooker includes a pot body 10 and a pot lid provided in this embodiment of the present invention. The inner wall of the pot body 10 has an inner boss 11 extending around the axis of the pot body 10. The driving assembly 1 of the pot lid can press the elastic sealing ring 200 of the pot lid into contact with the bottom of the inner boss 11 when the pot lid is placed on the pot body 10.

[0065] In the pressure cooker provided by this utility model, the lid engages with the inner boss 11 on the inner wall of the pot body 10 by pushing out the elastic sealing ring 200 through the driving component 1. Compared with existing clamp-type pressure cookers, this effectively reduces the complexity of the lid and the edge structure of the pot body 10, as well as the amount of material used, thereby reducing the manufacturing cost of the pressure cooker. Furthermore, since the driving component 1 and the elastic sealing ring 200 extend radially in all directions, there is no need to control the relative rotation angle between the lid and the pot body 10 when using the lid provided by this utility model. Compared with existing screw-on pressure cookers, this improves the convenience of using the pressure cooker and enhances the user experience.

[0066] Furthermore, the outer diameter of the contact ring 220 in the middle region of the elastic sealing ring 200 is larger than that of other parts. Thus, after the lid is fastened to the top of the pot body 10, the contact ring 220 automatically fills the area below the inner boss 11 or inside the groove 12, which can reduce the elastic deformation of the elastic sealing ring 200 in the locked state and ensure the sealing effect of the pressure cooker.

[0067] Furthermore, the pressure cooker structure provided by this invention differs significantly from existing pressure cooker structures. The corresponding transmission structure of the drive component 1 can be located inside the lid, making the lid's appearance similar to that of an ordinary cookware. This makes it less likely for users to identify the lid provided by this invention and the pressure cooker structure using this lid as a dangerous pressure vessel, effectively preventing users from developing a fear of pressure cookers. Moreover, the lid provided by this invention has a wide range of applications and can be adapted to some existing pots with bosses or grooves.

[0068] Optionally, such as Figures 5 to 6 As shown, the pot body 10 can have an inner boss 11 formed separately on its inner wall through a variable diameter structure for cooperating with the movable block 400 and the elastic sealing ring 200.

[0069] Alternatively, as an optional embodiment of this utility model, such as Figure 10 As shown, the inner wall of the pot body 10 has an inner groove 12 extending around the axis of the pot body 10, and an inner boss 11 is located on the side of the inner groove 12 facing the top opening of the pot body 10. The drive assembly 1 can push the elastic sealing ring 200 out to contact the inner wall of the inner groove 12, thereby locking the pressure cooker.

[0070] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this utility model will be included within the scope of the claims.

Claims

1. A pot lid, comprising a lid body (100) and an elastic sealing ring (200), wherein the elastic sealing ring (200) is circumferentially sleeved on the lid body (100), characterized in that, The elastic sealing ring (200) includes an upper fixing ring (210), a contact ring (220), and a lower fixing ring (230) connected in sequence. The upper fixing ring (210) and the lower fixing ring (230) are both connected to the side of the cover (100), and the outer diameter of the contact ring (220) in the non-stressed state is larger than the outer diameters of the upper fixing ring (210) and the lower fixing ring (230). The pot lid also includes a drive assembly (1) that can push the contact ring (220) outward from the inside of the contact ring (220).

2. The pot lid according to claim 1, characterized in that, The outer diameter of the contact ring (220) first increases and then decreases along the axial direction of the pot lid.

3. The pot lid according to claim 2, characterized in that, The contact ring (220) has a circular arc shape in cross-section along the radial direction of the pot lid.

4. The pot lid according to claim 1, characterized in that, The outer surface of the contact ring (220) has at least one annular sealing ridge that extends around the axis of the pot lid.

5. The pot lid according to any one of claims 1 to 4, characterized in that, The drive assembly includes a drive mechanism (300) and a plurality of movable blocks (400). The first ends of the plurality of movable blocks (400) are located inside the cover (100) and connected to the drive mechanism (300). The drive mechanism (300) is capable of driving the plurality of movable blocks (400) to extend outward from the cover (100) so that the second ends of the plurality of movable blocks (400) press outward against the contact ring (220).

6. The pot lid according to claim 5, characterized in that, The cover (100) has a drive receiving cavity inside, and the cover (100) has a plurality of clearance openings (101) on its circumferential side surface corresponding to the position of the elastic sealing ring (200). The drive mechanism (300) includes a rotating disk (310) movably disposed in the drive receiving cavity. The rotating disk (310) is rotatable about the axis of the cover (100). The rotating disk (310) has a plurality of drive grooves (311) extending circumferentially. The distance between each point on the drive groove (311) and the axial direction of the rotating disk (310) gradually changes circumferentially. The first end of the movable block (400) has a mating part (430). The mating part (430) is accommodated in the drive groove (311), and the movable block (400) can move radially in and out of the clearance opening (101) as the rotating disk (310) rotates.

7. The pot lid according to claim 6, characterized in that, The drive mechanism (300) also includes a handle (320), which is movably disposed on the top of the cover (100) and can rotate around the axis of the cover (100). The handle (320) is fixedly connected to the rotating disk (310).

8. The pot lid according to claim 7, characterized in that, The cover (100) includes a top cover (110) and a base (120). The base (120) includes a lower housing (121), a reinforcing ring (122), and a connecting cylinder (123). The top end of the connecting cylinder (123) is connected to the top cover (110), and the bottom end of the connecting cylinder (123) is fixedly connected to the reinforcing ring (122). The reinforcing ring (122) is fixedly disposed on the side of the lower housing (121) facing the top cover (110). The elastic sealing ring (200) is sleeved on the outside of the top cover (110) and the reinforcing ring (122). A plurality of clearance openings (101) are formed in the connecting cylinder (123).

9. The pot lid according to claim 8, characterized in that, The movable block (400) includes a connecting portion (410) and an arc-shaped contact portion (420) connected sequentially from the first end to the second end. The connecting portion (410) can enter and exit the cover (100) radially. The arc-shaped contact portion (420) extends around the axis of the cover (100) and is located between the cover (100) and the elastic sealing ring (200).

10. A pressure cooker, characterized in that, The pressure cooker includes a pot body (10) and a lid as described in any one of claims 1 to 9, wherein the inner wall of the pot body (10) has an inner boss (11) extending about the axis of the pot body (10), and the driving assembly (1) of the lid is capable of pressing the elastic sealing ring (200) of the lid to contact the bottom of the inner boss (11) when the lid is placed on the pot body (10).

Images