Pot cover and pressure cooker

Abstract

The utility model discloses a kind of pot cover and pressure cooker, it is related to pressure cooker field, including cover, be set to the clamp and driving assembly of cover, the clamp is slidably arranged in cover along the radial direction of cover, the driving assembly is used to drive clamp to move on cover, the driving assembly includes sliding drive part, the sliding drive part is slidably arranged in the cover, and is respectively connected with clamp transmission, under the condition that the sliding drive part is controlled by external force, the sliding drive part moves clamp by the sliding of itself. The utility model has the advantages that control component is small, and maintenance cost is low.

Description

Technical Field

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

[0002] 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. They can heat food to over 100°C. In high-altitude areas, pressure cookers can prevent the problem of water's boiling point lowering and food becoming difficult to cook.

[0003] During the use of a pressure cooker, due to the high pressure inside the pot, the lid needs to be locked. Before opening the lid, the pressure inside the pot needs to be released. During this process, the control components on the lid need to be operated so that the lid can be released from the lock of the pot body.

[0004] However, existing pot lids require high structural strength for the control components. Utility Model Content

[0005] This utility model aims to solve one of the technical problems in related technologies to a certain extent. Therefore, this utility model provides a pot lid and a pressure cooker, which has the advantage of low stress on the control components.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A pot lid includes a lid body, a clamp disposed on the lid body, and a driving assembly. The clamp is slidably disposed on the lid body along the radial direction. The driving assembly drives the clamp to move on the lid body. The driving assembly includes a sliding drive member slidably disposed on the lid body and connected to the clamp. When the sliding drive member is subjected to external force, it drives the clamp to move through its own sliding motion. The sliding drive member cooperates with the clamp, and by controlling the sliding drive member, the position of the clamp is controlled, thereby achieving the locking and unlocking of the pot lid.

[0007] Optionally, the drive assembly further includes a control component, and the lid further includes a control panel. The control panel is detachably fixed to the top surface of the lid body. The control panel and the lid body surround to form a drive space. The sliding drive component is located within the drive space. An opening is formed on the control panel, connecting the drive space to the outside. The control component is disposed within the opening and passes through the opening to connect with the sliding drive component, enabling control of the sliding drive component to slide on the lid body. The control panel is used to install the control component and surround the sliding drive component. After the control component is installed on the control panel, it passes through the control panel and connects with the sliding drive component. By setting the movement mode of the sliding drive component, rotational control is avoided, the stress on the sliding drive component is reduced, the service life is extended, and maintenance costs are reduced.

[0008] Optionally, the top of the sliding drive component has a groove, and the opposite sides of the groove have a first inclined surface and a second inclined surface with different directions. The control component includes a first button and a second button, which are disposed within the opening. The first button is positioned opposite to the first inclined surface. When the first button moves towards the cover, it abuts against the first inclined surface and pushes the sliding drive component to move. The second button is positioned opposite to the second inclined surface. When the second button moves towards the cover, it abuts against the second inclined surface and pushes the sliding drive component to move. The direction in which the first button pushes the sliding drive component is opposite to the direction in which the second button pushes it. The inclined surfaces on both sides of the groove are used to convert the movement direction of the control component into the movement direction of the sliding drive component when the control component and the sliding drive component move relative to each other. Furthermore, since the control component is in contact with an inclined surface, structural damage caused by multiple rotations or turns is avoided. Additionally, the first button and the second button push the sliding drive component in opposite directions to achieve locking and unlocking of the cover.

[0009] Optionally, the drive assembly includes multiple elastic elements. Elastic elements are respectively disposed between the first button and the control panel, and between the second button and the control panel. These elastic elements are used to reset the first button when it moves towards the cover, or to reset the second button when it moves towards the cover. When the first and second buttons are not pressed, the elastic elements are in an extended state and do not store elastic potential energy. After the first or second button is pressed, the corresponding elastic element is compressed, storing elastic potential energy, and resets the corresponding button after the pressure on the first or second button is released, providing operational convenience.

[0010] Optionally, a third inclined surface is formed at the bottom of the first button, which is opposite to and adapted to the first inclined surface. When the first button moves toward the cover, the third inclined surface and the first inclined surface are in close contact, and the first button slides relative to the first inclined surface. A fourth inclined surface is formed at the bottom of the second button, which is opposite to and adapted to the second inclined surface. When the second button moves toward the cover, the fourth inclined surface and the second inclined surface are in close contact, and the second button slides relative to the second inclined surface. The cooperation between the first and third inclined surfaces, and the cooperation between the second and fourth inclined surfaces, results in greater friction due to their close contact, which helps improve the stability of the entire system. By pushing one inclined surface, the other inclined surface moves accordingly, reducing interference from sliding or vibration, thereby improving the precision and controllability of the mechanical system. Furthermore, this design is simple, eliminating complex connectors or additional support structures, reducing additional parts, and thus lowering design and manufacturing costs.

[0011] Optionally, the drive assembly further includes a base fixed to the top surface of the cover. The top of the base forms a recessed sliding space. The sliding drive member is disposed on the base, and at least a portion of its structure is located within the sliding space. The bottom surface of the sliding space is larger than the bottom surface of the sliding drive member, allowing the sliding drive member to slide within the sliding space. Limiting the sliding drive member with the base prevents it from exceeding a set range, thus offering the advantage of good safety.

[0012] Optionally, the number of clamps is two, defined as a first clamp and a second clamp. The pot lid also includes a transmission assembly. The sliding drive component is connected to the first clamp via the transmission assembly, and the sliding drive component is connected to the second clamp. The transmission assembly is used to enable the sliding drive component and the first clamp to move synchronously in opposite directions, thereby achieving synchronous reverse movement of the first clamp and the second clamp. The two clamps are respectively located on both sides of the lid, which can better grip the lid and provide good stability. At the same time, the transmission assembly is used to synchronously drive the two clamps to move away from or towards the lid, so that only one inclined surface of the sliding drive component needs to be pushed to achieve synchronous reverse movement of the two clamps, resulting in a simple structure and convenient operation.

[0013] Optionally, the transmission assembly includes a sliding block and a transmission gear. A first rack is formed on the sliding drive member, located on the side of the sliding drive member facing the transmission gear and meshing with it. A second rack is formed on the sliding block, located on the side of the sliding block facing the transmission gear, opposite to the first rack and meshing with the transmission gear. The sliding block can move synchronously in the opposite direction to the sliding drive member under the action of the transmission gear. A first clamp is inserted and fixed to the sliding block and can move along with the sliding block. A second clamp is inserted and fixed to the sliding drive member and can move along with the sliding drive member. By meshing the first and second racks with the transmission gear, and by arranging the first and second racks opposite to each other on both sides of the transmission gear, the movement of one rack drives the other rack to move synchronously in the opposite direction. The sliding drive component containing the first rack is fixedly connected to the second clamp, and the sliding block containing the second rack is fixedly connected to the first clamp. Through the transmission gear, the sliding drive component drives the sliding block to move synchronously in the opposite direction, thereby realizing the synchronous reverse movement of the first clamp and the second clamp, which can unlock or lock the two clamps at the same time.

[0014] Optionally, the pot lid further includes a limiting member. A guide hole is formed on the clamp, which extends along the moving direction of the clamp. When the clamp slides, the guide hole moves relative to the limiting member. When the limiting member abuts against the first end of the guide hole, a gap is formed between the clamp and the lid. When the limiting member abuts against the second end of the guide hole, the clamp and the lid are in close contact.

[0015] The guide hole extends in the same direction as the clamp moves. When the clamp slides, the guide hole can work with the limiting component to limit the sliding range of the clamp, prevent the clamp from falling off, and improve the stability of the pot lid.

[0016] Furthermore, this utility model also provides a pressure cooker, which includes a pot body and a lid. The lid is the aforementioned type of lid. The top of the pot body has a rim that folds outward. When the lid is placed on the pot body, the sliding of the clamps along the radial direction of the lid allows a portion of the clamps to engage with the bottom side of the rim, thereby locking the pot body and the lid together. The reasoning process for the beneficial effects of the pressure cooker provided by this utility model and the aforementioned lid is similar, and will not be repeated here.

[0017] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this utility model. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings: Figure 1 This is an exploded view of a pot lid and a pressure cooker lid according to the present invention.

[0019] Figure 2 This is a cross-sectional view of a pot lid and a pressure cooker lid according to the present invention.

[0020] Figure 3 This is a perspective view of a pot lid and a pressure cooker lid according to the present invention.

[0021] Figure 4 This is a structural diagram of a sliding drive component for a pot lid and pressure cooker according to this utility model.

[0022] Figure 5 This is a bottom view of a pot lid and a pressure cooker lid according to the present invention.

[0023] Figure 6 This is a perspective view of a pressure cooker, which is a lid and pressure cooker according to the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Cover body; 2. Clamp; 21. First clamp; 22. Second clamp; 23. Guide hole; 24. Locking hole; 3. Drive assembly; 31. Sliding drive component; 311. First rack; 32. Control component; 321. First button; 322. Second button; 323. Third inclined surface; 324. Fourth inclined surface; 33. First inclined surface; 34. Second inclined surface; 35. Elastic component; 36. Base; 4. Control panel; 5. Transmission assembly; 51. Sliding block; 511. Second rack; 52. Transmission gear; 6. Limiting component; 7. Check valve; 8. Pot body; 81. Pot rim. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] Pressure cookers utilize the physical phenomenon that the boiling point of a liquid increases under higher pressure. By applying pressure to water, the water reaches a higher temperature without boiling, thus accelerating the cooking process. With a pressure cooker, food can be heated to over 100°C. In high-altitude areas, pressure cookers avoid the problem of water's boiling point lowering and food not cooking properly. During use, due to the high pressure inside the pot, the lid needs to be locked. Before opening the lid, the pressure inside the pot needs to be released. However, many pressure cooker lids currently in use have complex locking mechanisms, making opening and locking inconvenient and resulting in poor locking effectiveness. Existing technology uses a button with a groove on the button to lock or unlock the clamps. Since locking or unlocking requires rotating the button, the button is subject to strong force and requires metal components. Furthermore, the button's shape is difficult to manufacture, leading to high costs, and the curved rotating button can cause jamming.

[0028] like Figures 1-4 As shown, to solve the above problems, this application proposes a pot lid, including a lid body 1, a clamp 2 disposed on the lid body 1, and a driving assembly 3. The clamp 2 is slidably disposed on the lid body 1 along the radial direction. The driving assembly 3 is used to drive the clamp 2 to move on the lid body 1. The driving assembly 3 is characterized in that it includes a sliding drive member 31, which is slidably disposed on the lid body 1 and is connected to the clamp 2 in a transmission manner. When the sliding drive member 31 is subjected to external force, it drives the clamp 2 to move through its own sliding motion. The sliding drive member 31 is connected to the clamp 2 in cooperation, and the position of the clamp 2 is controlled by controlling the sliding drive member 31, thereby achieving the locking and unlocking of the pot lid.

[0029] The drive assembly 3 further includes a control element 32, and the lid further includes a control panel 4. The control panel 4 is detachably fixed to the top surface of the lid 1. The control panel 4 and the lid 1 enclose a drive space, and the sliding drive element 31 is located within the drive space. An opening is formed on the control panel 4 connecting the drive space to the outside. The control element 32 is disposed within the opening and passes through the opening to connect with the sliding drive element 31, enabling control of the sliding drive element 31 to slide on the lid 1. The control panel 4 is used to install the control element 32 and surround the sliding drive element 31. After the control element 32 is installed on the control panel 4, it passes through the control panel 4 and connects with the sliding drive element 31. By setting the movement mode of the sliding drive element 31, rotation control is avoided, the stress on the sliding drive element 31 is reduced, the service life is extended, and maintenance costs are reduced.

[0030] The top of the sliding drive member 31 has a groove, and the opposite sides of the groove have a first inclined surface 33 and a second inclined surface 34 with different directions. The control member 32 includes a first button 321 and a second button 322. The first button 321 and the second button 322 are disposed in the opening, and the first button 321 is disposed opposite to the first inclined surface 33. When the first button 321 moves toward the cover 1, the first button 321 abuts against the first inclined surface 33 and can push the sliding drive member 31 to move. The second button 322 is disposed opposite to the second inclined surface 34. When the second button 322 moves toward the cover 1, the second button 322 abuts against the second inclined surface 34 and can push the sliding drive member 31 to move. The direction in which the first button 321 pushes the sliding drive member 31 to move is opposite to the direction in which the second button 322 pushes the sliding drive member 31 to move. The inclined surfaces on both sides of the groove are used to convert the movement direction of the control member 32 into the movement direction of the sliding drive member 31 when the control member 32 moves relative to the sliding drive member 31. At the same time, since the control member 32 is in contact with the inclined surface, structural damage caused by multiple rotations or turns is avoided. Furthermore, the first button 321 and the second button 322 push the sliding drive member 31 in opposite directions to achieve locking and unlocking of the cover 1.

[0031] The drive assembly 3 includes multiple elastic elements 35. Elastic elements 35 are respectively disposed between the first button 321 and the control panel 4, and between the second button 322 and the control panel 4. The elastic elements 35 are used to reset the first button 321 when it moves towards the cover 1, or to reset the second button 322 when it moves towards the cover 1. When the first button 321 and the second button 322 are not pressed, the elastic elements 35 are in an extended state and do not store elastic potential energy. After the first button 321 or the second button 322 is pressed, the corresponding elastic element 35 is compressed, storing elastic potential energy, and resets the corresponding button after the pressure on the first button 321 or the second button 322 is released, providing operational convenience.

[0032] The bottom of the first button 321 forms a third inclined surface 323, which is opposite to and adapted to the first inclined surface 33. When the first button 321 moves toward the cover 1, the third inclined surface 323 and the first inclined surface 33 are pressed together, and the first button 321 slides relative to the first inclined surface 33. The bottom of the second button 322 forms a fourth inclined surface 324, which is opposite to and adapted to the second inclined surface 34. When the second button 322 moves toward the cover 1, the fourth inclined surface 324 and the second inclined surface 34 are pressed together, and the second button 322 slides relative to the second inclined surface 34. Through the cooperation of the first inclined surface 33 and the third inclined surface 323, and the cooperation of the second inclined surface 34 and the fourth inclined surface 324, the friction between the two inclined surfaces is large due to their close contact, which helps to improve the stability of the entire system. By pushing one inclined plane, the other inclined plane moves accordingly, reducing interference from sliding or vibration, thereby improving the precision and controllability of the mechanical system. Moreover, this design is simple in structure, eliminating complex connectors or additional support structures, reducing extra parts, and thus lowering design and manufacturing costs.

[0033] The drive assembly 3 further includes a base 36, which is fixed to the top surface of the cover 1. The top of the base 36 forms a recessed sliding space. The sliding drive member 31 is disposed on the base 36, and at least a portion of its structure is located within the sliding space. The bottom surface of the sliding space is larger than the bottom surface of the sliding drive member 31, allowing the sliding drive member 31 to slide within the sliding space. By limiting the sliding drive member 31 with the base 36, it is possible to prevent the sliding drive member 31 from exceeding the set range, thus providing a high level of safety.

[0034] The lid includes two clamps 2, designated as a first clamp 21 and a second clamp 22. The lid also includes a transmission assembly 5. A sliding drive member 31 is connected to the first clamp 21 via the transmission assembly 5, and is also connected to the second clamp 22. The transmission assembly 5 enables the sliding drive member 31 and the first clamp 21 to move synchronously in opposite directions, thus achieving synchronous reverse movement of the first clamp 21 and the second clamp 22. The two clamps 2 are positioned on opposite sides of the lid 1, providing better grip and stability. Simultaneously, the transmission assembly 5 synchronously drives the two clamps 2 to move away from or towards the lid 1, allowing for synchronous reverse movement of the two clamps 2 with only one inclined surface of the sliding drive member 31 required. This design is simple in structure and easy to operate.

[0035] like Figures 2-3 As shown, the transmission assembly 5 includes a sliding block 51 and a transmission gear 52. A first rack 311 is formed on the sliding drive member 31, located on the side of the sliding drive member 31 facing the transmission gear 52 and meshing with the transmission gear 52. A second rack 511 is formed on the sliding block 51, located on the side of the sliding block 51 facing the transmission gear 52, and is disposed opposite to the first rack 311 and meshing with the transmission gear 52. The sliding block 51 can move synchronously in opposite directions with the sliding drive member 31 under the action of the transmission gear 52. A first clamp 21 is inserted and fixed to the sliding block 51 and can move along with the sliding block 51. A second clamp 22 is inserted and fixed to the sliding drive member 31 and can move along with the sliding drive member 31. By engaging the first rack 311 and the second rack 511 with the transmission gear 52, and with the first rack 311 and the second rack 511 positioned opposite each other on both sides of the transmission gear 52, the movement of one rack drives the other rack to move synchronously in the opposite direction. The sliding drive member 31 containing the first rack 311 is inserted and fixedly connected to the second clamp 22, and the sliding block 51 containing the second rack 511 is inserted and fixedly connected to the first clamp 21. Through the transmission gear 52, the sliding drive member 31 drives the sliding block 51 to move synchronously in the opposite direction, thereby realizing the synchronous reverse movement of the first clamp 21 and the second clamp 22, enabling simultaneous unlocking or locking of both clamps 2.

[0036] like Figure 5As shown, the pot lid also includes a limiting member 6. A guide hole 23 is formed on the clamp 2. The guide hole 23 extends along the moving direction of the clamp 2. When the clamp 2 slides, the guide hole 23 moves relative to the limiting member 6. When the limiting member 6 abuts against the first end of the guide hole 23, a gap is formed between the clamp 2 and the lid 1. When the limiting member 6 abuts against the second end of the guide hole 23, the clamp 2 and the lid 1 are tightly attached.

[0037] The extension direction of the guide hole 23 is the same as the movement direction of the clamp 2. When the clamp 2 slides, the guide hole 23 can cooperate with the limiting member 6 to limit the sliding range of the clamp 2, prevent the clamp 2 from falling off, and improve the stability of the pot lid.

[0038] like Figure 6 As shown, this utility model also provides a pressure cooker, which includes a pot body 8 and a lid. The lid is the lid described above. The top of the pot body 8 has a pot rim 81 that folds outward from the pot body 8. When the lid is closed on the pot body 8, the sliding of the clamp 2 along the radial direction of the lid 1 can cause a part of the clamp 2 to be locked on the bottom side of the pot rim 81, so as to lock the pot body 8 and the lid.

[0039] In this embodiment, the pot lid and the pot body 8 surround and form a receiving space. The clamp 2 has a locking hole 24 extending through it in the thickness direction. The pot lid also includes a stop valve 7, which is movably mounted on the top surface of the lid body 1. The bottom diameter of the stop valve 7 is larger than its top diameter. The bottom of the stop valve 7 communicates with the receiving space and can move back and forth in the thickness direction of the clamp 2 under pressure. When the clamp 2 is pressed tightly against the lid body 1, the increased pressure in the receiving space can push the stop valve. The bottom of clamp 7 is engaged and fixed with the locking hole 24 so that clamp 2 cannot move relative to lid 1. At this time, a part of clamp 2 is engaged with the bottom side of pot rim 81, so that pot rim 81 and pot lid fit tightly together, thereby locking pot lid and pot body 8. After the pressure in the accommodating space decreases, stop valve 7 moves toward pot body 8, and the bottom of stop valve 7 leaves the locking hole 24, so that clamp 2 can move relative to lid 1. After clamp 2 is disengaged from lid 1, pot lid and pot body 8 are unlocked.

[0040] 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 (1), a clamp (2) disposed on the lid body (1), and a driving assembly (3), wherein the clamp (2) is slidably disposed on the lid body (1) along the radial direction of the lid body (1), and the driving assembly (3) is used to drive the clamp (2) to move on the lid body (1), characterized in that, The drive assembly (3) includes a sliding drive member (31), which is slidably disposed on the cover (1) and is connected to the clamp (2) in a transmission manner. When the sliding drive member (31) is operated by an external force, the sliding drive member (31) drives the clamp (2) to move by its own sliding.

2. The pot lid according to claim 1, characterized in that, The drive assembly (3) also includes a control element (32), and the lid also includes a control panel (4). The control panel (4) is detachably fixed to the top surface of the lid (1). The control panel (4) and the lid (1) surround and form a drive space. The sliding drive element (31) is located in the drive space. An opening is formed on the control panel (4) that connects the drive space and the outside. The control element (32) is disposed at the opening and passes through the opening to connect with the sliding drive element (31), and can control the sliding drive element (31) to slide on the lid (1).

3. The pot lid according to claim 2, characterized in that, The top of the sliding drive member (31) is formed with a groove, and the opposite sides of the groove are formed with a first inclined surface (33) and a second inclined surface (34) in different directions. The control member (32) includes a first button (321) and a second button (322). The first button (321) and the second button (322) are disposed in the opening, and the first button (321) is disposed opposite to the first inclined surface (33). When the first button (321) moves toward the cover (1), the first button (321) abuts against the first inclined surface (33) and can push the sliding drive member (31) to move. The second button (322) is disposed opposite to the second inclined surface (34). When the second button (322) moves toward the cover (1), the second button (322) abuts against the second inclined surface (34) and can push the sliding drive member (31) to move. The direction in which the first button (321) pushes the sliding drive (31) to move is opposite to the direction in which the second button (322) pushes the sliding drive (31) to move.

4. The pot lid according to claim 3, characterized in that, The drive assembly (3) includes a plurality of elastic elements (35). Elastic elements (35) are respectively provided between the first button (321) and the control panel (4) and between the second button (322) and the control panel (4). The elastic elements (35) are used to reset the first button (321) when it moves toward the cover (1) or to reset the second button (322) when it moves toward the cover (1).

5. The pot lid according to claim 3, characterized in that, The bottom of the first button (321) forms a third inclined surface (323), which is opposite to and adapted to the first inclined surface (33). When the first button (321) moves toward the cover (1), the third inclined surface (323) abuts against the first inclined surface (33), and the first button (321) slides relative to the first inclined surface (33). The bottom of the second button (322) forms a fourth inclined surface (324), which is opposite to and adapted to the second inclined surface (34). When the second button (322) moves toward the cover (1), the fourth inclined surface (324) and the second inclined surface (34) abut against each other, and the second button (322) slides relative to the second inclined surface (34).

6. The pot lid according to any one of claims 1-5, characterized in that, The drive assembly (3) further includes a base (36) fixed to the top surface of the cover (1). The top of the base (36) forms a recessed sliding space. The sliding drive member (31) is disposed on the base (36) and at least part of its structure is located within the sliding space. The bottom surface of the sliding space is larger than the bottom surface of the sliding drive member (31). The sliding drive member (31) is capable of sliding within the sliding space.

7. The pot lid according to any one of claims 1-5, characterized in that, The number of clamps (2) is two, which are defined as the first clamp (21) and the second clamp (22). The pot lid also includes a transmission assembly (5). The sliding drive (31) is connected to the first clamp (21) through the transmission assembly (5), and the sliding drive (31) is connected to the second clamp (22). The transmission assembly (5) is used to make the sliding drive (31) and the first clamp (21) move synchronously in opposite directions, so as to realize the synchronous reverse movement of the first clamp (21) and the second clamp (22).

8. The pot lid according to claim 7, characterized in that, The transmission assembly (5) includes a sliding block (51) and a transmission gear (52). A first rack (311) is formed on the sliding drive member (31). The first rack (311) is located on the side of the sliding drive member (31) facing the transmission gear (52) and meshes with the transmission gear (52). A second rack (511) is formed on the sliding block (51). The second rack (511) is located on the side of the sliding block (51) facing the transmission gear (52). The second rack (511) is arranged opposite to the first rack (311) and meshes with the transmission gear (52). The sliding block (51) can move synchronously in the opposite direction to the sliding drive member (31) under the action of the transmission gear (52). The first clamp (21) is inserted and fixed to the sliding block (51) and can move along with the sliding block (51). The second clamp (22) is inserted and fixed to the sliding drive member (31) and can move along with the sliding drive member (31).

9. The pot lid according to any one of claims 1-5, characterized in that, The pot lid also includes a limiting member (6). A guide hole (23) is formed on the clamp (2). The guide hole (23) extends along the moving direction of the clamp (2). When the clamp (2) slides, the guide hole (23) moves relative to the limiting member (6). When the limiting member (6) abuts against the first end of the guide hole (23), a gap is formed between the clamp (2) and the lid (1). When the limiting member (6) abuts against the second end of the guide hole (23), the clamp (2) and the lid (1) are tightly attached.

10. A pressure cooker, the pressure cooker comprising a pot body (8) and a pot lid, characterized in that, The pot lid is the pot lid according to any one of claims 1 to 9. The top of the pot body (8) is formed with a pot rim (81) that folds outward from the pot body (8). When the pot lid is placed on the pot body (8), the sliding of the clamp along the radial direction of the lid can cause a part of the clamp to be locked on the bottom side of the pot rim (81) to achieve locking of the pot body (8) and the pot lid.

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