Clamp opening and closing device on pressure cooker cover

Abstract

The utility model provides a kind of clamp opening and closing device on pressure cooker cover, to solve the problem of complex structure of linkage assembly matched with button and clamp on clamp type pressure cooker in prior art.A kind of clamp opening and closing device on pressure cooker cover, comprising: cover;Each pot cover clamp is equipped with guide column;Transmission part, swing setting in the cover, it is equipped with two first guide parts of eight-shaped setting on the transmission part;Two the guide column is slidably connected with two the first guide part;Opposite sides on the transmission part are equipped with first abutting portion and second abutting portion respectively;And, button assembly, when the button assembly abuts on the first abutting portion and executes pressing action, two the pot cover clamp mutually far away and loosen the cover;When the button assembly abuts on the second abutting portion and executes pressing action, two pot cover clamps mutually close and clamp cover.The utility model structure is more simplified.

Description

Technical Field

[0001] This utility model belongs to the field of kitchen appliance technology, specifically relating to a clamp opening and closing device for a pressure cooker lid. Background Technology

[0002] Pressure cookers are a common cooking appliance in kitchens, increasing cooking efficiency by raising the pressure inside the pot. To ensure a tight seal, pressure cookers typically have a lid locking mechanism. Existing technology includes a clamp-type pressure cooker lid, where a drive mechanism moves two clamps together to lock the lid or separates them to release it. Currently, the drive mechanism usually includes a button and a linkage component. Pressing the button causes the linkage component to move the two clamps. However, the linkage component in this existing technology, which works in conjunction with the button, has a complex structure, thus requiring improvement. Utility Model Content

[0003] This utility model provides a clamp opening and closing device for a pressure cooker lid, which aims to solve the problem of complex structure in the linkage components that cooperate with the buttons and clamps on the existing clamp-type pressure cooker.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A clamp opening and closing device for a pressure cooker lid includes:

[0006] Cover;

[0007] The clamp assembly includes two lid clamps respectively disposed on opposite sides of the lid body; each lid clamp is provided with a guide post;

[0008] A transmission unit, oscillatingly mounted on the cover, includes two first guide portions arranged in a V-shape, with their starting ends close to each other and their ending ends far apart; two guide posts are slidably connected to the two first guide portions; a first abutment portion and a second abutment portion are respectively provided on opposite sides of the transmission unit; and...

[0009] A button assembly is disposed on the lid. When the button assembly abuts against the first abutting part and performs a pressing action, the button assembly drives the transmission part to swing from the first position to the second position. The two guide posts slide along the two first guide parts from the starting end to the ending end, causing the two lid clamps to move away from each other and release the lid. When the button assembly abuts against the second abutting part and performs a pressing action, the button assembly drives the transmission part to swing from the second position to the first position. The two guide posts slide along the two first guide parts from the ending end to the starting end, causing the two lid clamps to move closer to each other and clamp the lid.

[0010] A further embodiment: The cover body is provided with an arc-shaped mounting groove, and the transmission part is oscillatingly disposed in the mounting groove; the bottom wall of the mounting groove is provided with two clearance holes, and the two guide posts are respectively slidably disposed in the two clearance holes along the opening and closing direction of the pot lid clamp.

[0011] Based on the above technical solution: the transmission unit is oscillating within the mounting groove, enabling it to oscillate stably; by providing clearance holes in the bottom wall of the mounting groove, a precise sliding track is provided for the guide column, ensuring that the clamp moves smoothly in the predetermined direction during opening and closing, avoiding jamming or offset during movement, and improving the stability and reliability of the structure.

[0012] A further embodiment: The mounting groove is provided with an arc-shaped second guide portion, and the transmission part is provided with an arc-shaped third guide portion, the third guide portion being slidably connected to the second guide portion.

[0013] Based on the above technical solution: by setting mutually cooperating arc-shaped second and third guide parts between the mounting groove and the transmission part, the swing of the transmission part is guided and assisted in supporting it, making its swing process more stable and smooth, reducing shaking, and thus making the entire opening and closing device more stable.

[0014] A further embodiment: The second guide portion includes three arc-shaped guide ribs arranged side by side on the bottom wall of the mounting groove along the opening and closing direction of the lid clamp. The bottom of the two outer arc-shaped guide ribs is provided with a notch that communicates with the corresponding clearance hole. The middle arc-shaped guide rib separates the two clearance holes.

[0015] The third guide portion includes three arc-shaped guide grooves located on the lower side of the transmission portion, and the three guide grooves are respectively in sliding engagement with the three arc-shaped guide ribs.

[0016] Based on the above technical solution: the specific structure of three arc-shaped guide ribs and three arc-shaped guide grooves not only realizes stable swing guidance of the transmission part, but also provides the necessary movement space for the guide column with the groove at the bottom of the outer guide rib. The middle guide rib effectively separates the two clearance holes, thereby avoiding movement interference between the two guide columns, making the overall structure more compact and reasonable, and the assembly relationship clear.

[0017] A further solution: An elastic limiting device is provided between the transmission part and the cover to limit the transmission part to the first position or the second position.

[0018] Based on the above technical solution: by setting an elastic limiting device, a stable holding force can be provided when the transmission part swings to the first position (clamping) or the second position (releasing), so as to realize mechanical self-locking and prevent the transmission part from being accidentally displaced due to vibration or accidental contact, making the two pot lid clamps more stable in the clamping or releasing state.

[0019] A further embodiment: The elastic limiting device includes an elastic positioning pin that slides up and down on the cover. The transmission part is provided with a first positioning groove corresponding to the first position and a second positioning groove corresponding to the second position. The button assembly drives the transmission part to switch between the first position and the second position, thereby switching the elastic positioning pin between the first positioning groove and the second positioning groove.

[0020] Based on the above technical solution: by setting the elastic positioning pin to cooperate with the first and second positioning grooves, when the transmission part reaches the first position or the second position, the positioning pin can accurately engage in the corresponding positioning groove to achieve precise positioning and locking; ensuring that the clamp can accurately reach and stably maintain the clamping or releasing state.

[0021] A further embodiment: the elastic positioning pin includes a positioning pin and a third spring located between the positioning pin and the cover;

[0022] The end of the positioning pin is hemispherical, ellipsoidal or conical, and the first positioning groove and the second positioning groove are both spherical crown-shaped grooves.

[0023] Based on the above technical solution: the end of the positioning pin is hemispherical, ellipsoidal or conical and matches the spherical groove. This shape design is conducive to the positioning pin sliding smoothly into and out of the positioning groove, reducing the wear of the contact surface, while ensuring the accuracy and reliability of positioning and extending the service life of the elastic limit device.

[0024] A further embodiment: The cover is provided with a button base, and the button assembly includes an open button for cooperating with the first abutting part and a close button for cooperating with the second abutting part, the open button and the close button being disposed on opposite sides of the button base;

[0025] A first elastic reset component is provided between the open key and the cover to drive the open key to reset when it is pressed; a second elastic reset component is provided between the close key and the cover to drive the close key to reset when it is pressed.

[0026] Based on the above technical solution: by setting separate open and close buttons and setting elastic reset components for each, the opening and closing operations do not interfere with each other; the buttons can automatically reset after being pressed, which facilitates subsequent pressing operations.

[0027] A further solution: The lower side of the key is provided with two first driving parts arranged opposite to each other, and a first spring groove is provided between the two first driving parts. The key base is provided with a first spring mounting part. The opposite sides of the first spring mounting part are provided with first through holes for the two first driving parts to slide up and down through and cooperate with the first abutting part. The first elastic reset component includes a first spring located between the first spring mounting part and the first spring groove.

[0028] The lower side of the key is provided with two opposing second driving parts, and a second spring groove is provided between the two second driving parts. The key base is provided with a second spring mounting part. The opposite sides of the second spring mounting part are provided with second through holes for the two second driving parts to slide up and down through and cooperate with the second abutting part. The second elastic reset assembly includes a second spring located between the second spring mounting part and the second spring groove.

[0029] Based on the above technical solution: the specific key opening and closing drive structure directly pushes the corresponding abutment on the transmission part through the drive unit, resulting in a direct and efficient force transmission path. A spring is positioned between the drive unit and the corresponding spring mounting part, providing a stable reset force and ensuring smooth and reliable key reset action.

[0030] A further solution: the first guide portion is a guide hole, and both the starting end and the ending end of the guide hole are provided with a locking hole communicating with the guide hole.

[0031] Based on the above technical solution: the first guide part is a guide hole, and both the starting end and the ending end of the guide hole are provided with locking holes that communicate with the guide hole; the locking hole structure can play a certain limiting role for the guide post, which helps to prevent the guide post from accidentally coming out of the guide hole, so that when the pot lid clamp is in the loose or locked state, it can play an auxiliary limiting role, thereby enhancing the reliability and safety of the mechanism.

[0032] The beneficial effects of this utility model are as follows:

[0033] This invention features a swingable transmission unit on the lid, with two first guide parts arranged in a figure-eight pattern. These first guide parts engage with guide posts on two lid clamps. Furthermore, the transmission unit includes first and second abutting parts. The button assembly abuts against these abutting parts to perform a pressing action, causing the transmission unit to swing relative to the lid. This efficiently converts the linear pressing action of the button into the rotational motion of the transmission unit. During the swinging motion, the two first guide parts engage with the guide posts on the two lid clamps, precisely converting the reciprocating swing of the transmission unit into the linear opening and closing motion of the two lid clamps. This transmission path is simple and direct, with fewer components, effectively simplifying the overall structure and improving transmission reliability and operational efficiency. Attached Figure Description

[0034] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the clamp opening and closing device on the lid of a pressure cooker.

[0036] Figure 2 This is an exploded structural diagram of a clamp opening and closing device on a pressure cooker lid.

[0037] Figure 3 This is a schematic diagram of the structure of two pot lid clamps engaging with the lid body.

[0038] Figure 4 This is a schematic diagram of the structure of two guide posts and mounting grooves.

[0039] Figure 5 This is a schematic diagram of the transmission unit.

[0040] Figure 6 This is a schematic diagram of the structure where the transmission part is located in the mounting slot.

[0041] Figure 7 This is a cross-sectional schematic diagram of the clamp opening and closing device on the lid of a pressure cooker.

[0042] Figure 8 This is an exploded structural diagram of the pot lid base and button assembly.

[0043] Explanation of the labels in the diagram:

[0044] 1-Lid body; 11-Top cover; 12-Mounting groove; 121-Leaving hole; 122-Arc-shaped guide rib; 123-Limiting block; 2-Button base; 21-First spring mounting part; 211-First spring; 212-First through hole; 22-Second spring mounting part; 221-Second spring; 222-Second through hole; 23-Elastic positioning pin groove; 231-Positioning pin; 232-Third spring; 3-Transmission part; 31-Guide hole; 311-Snap hole; 32-Arc-shaped guide groove; 33-First abutting part; 34-Second abutting part; 35-First positioning groove; 36-Second positioning groove; 4-Pot lid clamp; 41-Clamping part; 42-Connecting rod; 43-Guide column; 5-Opening key; 51-First driving part; 6-Closed key; 61-Second driving part. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0046] like Figures 1 to 6 As shown, this embodiment provides a clamp opening and closing device for a pressure cooker lid, including:

[0047] Cover 1;

[0048] The clamp assembly includes two pot lid clamps 4 respectively disposed on opposite sides of the lid body 1, specifically on the left and right sides; each pot lid clamp 4 is provided with a guide post 43; specifically, each pot lid clamp 4 includes an arc-shaped clamping part 41 and a connecting rod 42 fixedly connected to or integrally formed with the clamping part 41, the connecting rod 42 is slidably disposed in a guide groove on the lid body 1 along the opening and closing direction of the pot lid clamp 4, and the guide post 43 is fixedly disposed on the corresponding connecting rod 42;

[0049] The transmission part 3 is oscillatingly mounted on the cover 1. The transmission part 3 has two first guide parts arranged in a V-shape, with their starting ends close to each other and their ending ends far apart. Two guide posts 43 are slidably connected to the two first guide parts. A first abutment part 33 and a second abutment part 34 are respectively provided on opposite sides of the transmission part 3.

[0050] A button assembly is disposed on the cover 1. When the button assembly abuts against the first abutting part 33 and performs a pressing action, the button assembly drives the transmission part 3 to swing from the first position to the second position. The two guide posts 43 slide from the starting end to the ending end along the two first guide parts respectively, and drive the two pot lid clamps 4 to move away from each other and release the cover 1. When the button assembly abuts against the second abutting part 34 and performs a pressing action, the button assembly drives the transmission part 3 to swing from the second position to the first position. The two guide posts 43 slide from the ending end to the starting end along the two first guide parts respectively, and drive the two pot lid clamps 4 to move closer to each other and clamp the cover 1.

[0051] The cover body 1 is further provided with an upper cover 11 fixedly connected to the cover body 1. The upper cover 11 is provided with a button hole, a pressure valve mounting hole and an exhaust valve mounting hole. The button assembly is located above the button hole. The transmission part 3 is located between the upper cover 11 and the cover body 1.

[0052] In some specific implementations, such as Figure 2 , Figure 4 and Figure 6 As shown, to ensure more stable swinging of the transmission part 3, the cover 1 is provided with an arc-shaped mounting groove 12. The transmission part 3 is swinging within the mounting groove 12, and the left and right sides of the transmission part 3 are limited between the left and right side walls of the mounting groove 12. The bottom wall of the mounting groove 12 is provided with two clearance holes 121, and the two guide posts 43 are respectively slidably disposed within the two clearance holes 121 along the opening and closing direction of the lid clamp 4. The clearance holes 121 provide a precise sliding track for the guide posts 43, ensuring that the clamp moves smoothly in a predetermined direction during opening and closing.

[0053] In some specific implementations, such as Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, to make the swing of the transmission part 3 more stable within the mounting groove 12, the mounting groove 12 is provided with an arc-shaped second guide part, and the transmission part 3 is provided with an arc-shaped third guide part, which is slidably connected to the second guide part. This makes the transmission part 3 more stable during reciprocating swing. The shape of the transmission part 3 can be further configured to be arc-shaped, so as to better fit the semi-circular mounting groove 12.

[0054] The second guide section includes three arc-shaped guide ribs 122 arranged side by side on the bottom wall of the mounting groove 12 along the opening and closing direction of the lid clamp 4. The bottom of the two outer arc-shaped guide ribs 122 is provided with a notch communicating with the corresponding clearance hole 121. The middle arc-shaped guide rib 122 separates the two clearance holes 121. Specifically, the two outer arc-shaped guide ribs 122 are located at the bottom of the left and right side walls of the mounting groove 12. In order to make the transmission part 3 more stable when swinging, a limiting block 123 is provided on the upper side of each notch. The limiting block 123 is located on the upper side of the transmission part 3. The limiting block 123 can play a certain limiting and guiding role in the swing of the transmission part 3.

[0055] The third guide portion includes three arc-shaped guide grooves 32 located on the lower side of the transmission portion 3, and the three guide grooves are respectively in sliding engagement with the three arc-shaped guide ribs 122.

[0056] In some specific implementations, such as Figure 2 , Figure 5 and Figure 7 As shown, to improve the stability of the transmission part 3 during its reciprocating swing within the mounting groove 12 and to better maintain the transmission part 3 in the first or second position, an elastic limiting device is provided between the transmission part 3 and the lid 1 to limit the transmission part 3 to the first or second position. When the transmission part 3 swings to the first position, the elastic limiting device limits the transmission part 3 to the first position, thereby ensuring stable clamping of the lid by the two lid clamps 4. When the transmission part 3 swings to the second position, the elastic limiting device limits the transmission part 3 to the second position, thereby keeping the two lid clamps 4 in the open state, releasing the locking effect on the lid, and making it easier for the user to open the lid.

[0057] The elastic limiting device includes an elastic positioning pin that slides vertically on the cover 1. The transmission part 3 has a first positioning groove 35 corresponding to the first position and a second positioning groove 36 corresponding to the second position. The button assembly drives the transmission part 3 to switch between the first position and the second position, causing the elastic positioning pin to switch between the first positioning groove 35 and the second positioning groove 36. Specifically, when the open button 5 is pressed, the transmission part 3 swings, the first positioning groove 35 moves, and forces the positioning pin 231 to compress the third spring 232 upward, disengaging from the first positioning groove 35. When the transmission part 3 reaches the second position, the positioning pin 231 is engaged in the second positioning groove 36 under the action of the third spring 232.

[0058] The elastic positioning pin includes a positioning pin 231 and a third spring 232 located between the positioning pin 231 and the cover 1; the button base 2 is provided with an elastic positioning pin groove 23 with the slot facing downward, and the positioning pin 231 and the third spring 232 are both located in the elastic positioning pin groove 23.

[0059] To facilitate the sliding of the positioning pin 231 into or out of the first positioning groove 35 or the second positioning groove 36, the end of the positioning pin 231 is hemispherical, ellipsoidal or conical, etc., and the first positioning groove 35 and the second positioning groove 36 are both spherical grooves or can be set to other shapes.

[0060] In some specific implementations, such as Figure 1 , Figure 2 and Figure 8 As shown, in order to facilitate user operation, the cover 1 is provided with a button base 2. The button assembly includes an open button 5 for cooperating with the first abutting part 33 and a closed button 6 for cooperating with the second abutting part 34. The open button 5 and the closed button 6 are arranged on opposite sides of the button base 2.

[0061] A first elastic reset component is provided between the open key 5 and the cover 1 to drive the open key 5 to reset when it is pressed, so that the open key 5 can automatically reset when it is pressed, which facilitates subsequent operation; a second elastic reset component is provided between the close key 6 and the cover 1 to drive the close key 6 to reset when it is pressed, so that the close key 6 can automatically reset when it is pressed, which facilitates subsequent pressing operation.

[0062] As a specific structure, the lower side of the key 5 is provided with two opposing first driving parts 51, and a first spring 211 groove is provided between the two first driving parts 51. The key base 2 is provided with a first spring mounting part 21. The opposite sides of the first spring mounting part 21 are provided with first through holes 212 for the two first driving parts 51 to slide up and down through and cooperate with the first abutting part 33. The first elastic reset assembly includes a first spring 211 located between the first spring mounting part 21 and the first spring 211 groove. When the key 5 is pressed, the first driving part 51 abuts against the first abutting part 33. When the key 5 is released, the key 5 resets upward under the reset action of the first spring 211.

[0063] The lower side of the key 6 is provided with two opposing second driving parts 61, and a second spring 221 groove is provided between the two second driving parts 61. The key base 2 is provided with a second spring mounting part 22. The opposite sides of the second spring mounting part 22 are provided with second through holes 222 for the two second driving parts 61 to slide up and down through and cooperate with the second abutment part 34. The second elastic reset assembly includes a second spring 221 located between the second spring mounting part 22 and the second spring 221 groove. In order to facilitate the installation of the first spring 211 or the second spring 221, both the first spring mounting part 21 and the second spring mounting part 22 are provided with an upwardly protruding cross structure, and the first spring 211 or the second spring 221 is sleeved on the corresponding cross structure.

[0064] In some specific implementations, such as Figure 5 and Figure 6 As shown, the first guide part is a guide hole 31, and both the starting end and the ending end of the guide hole 31 are provided with locking holes 311 that communicate with the guide hole 31. Specifically, the locking hole 311 is formed by bending the end of the guide hole 31, so that when the guide post 43 slides into the locking hole 311, it can play a certain locking role, which helps to prevent the guide post 43 from accidentally coming out of the guide hole 31. Thus, when the pot lid clamp 4 is in the loose or locked state, it can play an auxiliary limiting role, enhancing the reliability and safety of the mechanism.

[0065] Working principle explanation:

[0066] When the release button 5 is pressed, it abuts against the first abutment part 33 on the transmission part 3, thereby driving the transmission part 3 to swing from the first position to the second position. The two guide holes 31 follow the transmission part 3 to swing to their end and engage with the corresponding guide post 43. Since the end ends of the two guide holes 31 are far apart, the two guide posts 43 will be driven to move away from each other, thereby causing the two lid clamps 4 to release the lid 1, making it easier for the user to open the lid 1. When the close button 6 is pressed, it abuts against the second abutment part 34 on the transmission part 3, thereby driving the transmission part 3 to swing from the second position to the first position. The two guide holes 31 follow the transmission part 3 to swing to their starting end and engage with the corresponding guide post 43. Since the starting ends of the two guide holes 31 are close to each other, the two guide posts 43 will be driven to move closer to each other, thereby causing the two lid clamps 4 to move closer to each other and clamp the lid 1.

[0067] This utility model is not limited to the above-mentioned optional embodiments. Under the premise of non-contradiction, the various solutions can be combined arbitrarily. Anyone can derive other forms of products under the guidance of this utility model. However, no matter what changes are made in their shape or structure, all technical solutions that fall within the scope of the claims of this utility model are within the protection scope of this utility model.

Claims

1. A clamp opening and closing device for a pressure cooker lid, characterized in that, include: Cover; The clamp assembly includes two lid clamps respectively disposed on opposite sides of the lid body; each lid clamp is provided with a guide post; A transmission unit, oscillatingly mounted on the cover, includes two first guide portions arranged in a V-shape, with their starting ends close to each other and their ending ends far apart; two guide posts are slidably connected to the two first guide portions; a first abutment portion and a second abutment portion are respectively provided on opposite sides of the transmission unit; and... A button assembly is disposed on the lid. When the button assembly abuts against the first abutting part and performs a pressing action, the button assembly drives the transmission part to swing from the first position to the second position. The two guide posts slide along the two first guide parts from the starting end to the ending end, causing the two lid clamps to move away from each other and release the lid. When the button assembly abuts against the second abutting part and performs a pressing action, the button assembly drives the transmission part to swing from the second position to the first position. The two guide posts slide along the two first guide parts from the ending end to the starting end, causing the two lid clamps to move closer to each other and clamp the lid.

2. The clamp opening and closing device for a pressure cooker lid according to claim 1, characterized in that, The lid is provided with an arc-shaped mounting groove, and the transmission part is oscillatingly disposed in the mounting groove; the bottom wall of the mounting groove is provided with two clearance holes, and the two guide posts are respectively slidably disposed in the two clearance holes along the opening and closing direction of the lid clamp.

3. The clamp opening and closing device for a pressure cooker lid according to claim 2, characterized in that, The mounting groove is provided with an arc-shaped second guide portion, and the transmission part is provided with an arc-shaped third guide portion, the third guide portion being slidably connected to the second guide portion.

4. The clamp opening and closing device for a pressure cooker lid according to claim 3, characterized in that, The second guide portion includes three arc-shaped guide ribs arranged side by side on the bottom wall of the mounting groove along the opening and closing direction of the pot lid clamp. The bottom of the two outer arc-shaped guide ribs is provided with a notch that communicates with the corresponding clearance hole, and the middle arc-shaped guide rib separates the two clearance holes. The third guide portion includes three arc-shaped guide grooves located on the lower side of the transmission portion, and the three guide grooves are respectively in sliding engagement with the three arc-shaped guide ribs.

5. A clamp opening and closing device for a pressure cooker lid according to claim 1 or 2, characterized in that, An elastic limiting device is provided between the transmission part and the cover to limit the transmission part to the first position or the second position.

6. The clamp opening and closing device for a pressure cooker lid according to claim 5, characterized in that, The elastic limiting device includes an elastic positioning pin that slides up and down on the cover. The transmission part is provided with a first positioning groove corresponding to the first position and a second positioning groove corresponding to the second position. The button assembly drives the transmission part to switch between the first position and the second position, thereby switching the elastic positioning pin between the first positioning groove and the second positioning groove.

7. The clamp opening and closing device for a pressure cooker lid according to claim 6, characterized in that, The elastic positioning pin includes a positioning pin and a third spring located between the positioning pin and the cover; The end of the positioning pin is hemispherical, ellipsoidal or conical, and the first positioning groove and the second positioning groove are both spherical crown-shaped grooves.

8. The clamp opening and closing device for a pressure cooker lid according to claim 1, characterized in that, The cover is provided with a button base, and the button assembly includes an open button for cooperating with the first abutting part and a close button for cooperating with the second abutting part. The open button and the close button are arranged on opposite sides of the button base. A first elastic reset component is provided between the open key and the cover to drive the open key to reset when it is pressed; a second elastic reset component is provided between the close key and the cover to drive the close key to reset when it is pressed.

9. The clamp opening and closing device for a pressure cooker lid according to claim 8, characterized in that, The lower side of the key is provided with two first driving parts arranged opposite to each other, and a first spring groove is provided between the two first driving parts. The key base is provided with a first spring mounting part. The opposite sides of the first spring mounting part are provided with first through holes for the two first driving parts to slide up and down through and cooperate with the first abutting part. The first elastic reset component includes a first spring located between the first spring mounting part and the first spring groove. The lower side of the key is provided with two opposing second driving parts, and a second spring groove is provided between the two second driving parts. The key base is provided with a second spring mounting part. The opposite sides of the second spring mounting part are provided with second through holes for the two second driving parts to slide up and down through and cooperate with the second abutting part. The second elastic reset assembly includes a second spring located between the second spring mounting part and the second spring groove.

10. The clamp opening and closing device for a pressure cooker lid according to claim 1, characterized in that, The first guide portion is a guide hole, and both the starting end and the ending end of the guide hole are provided with a locking hole that communicates with the guide hole.

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