Tong device, pressure cooker lid, and pressure cooker

Abstract

The application provides a clamp device, a pressure cooker cover and a pressure cooker. The clamp device comprises a support, at least two clamps, a rotating part, and a spring positioning part. The clamps are slidingly connected to the support to realize clamping or unclamping. The rotating part is rotatably connected to the support and is drivingly connected to the clamps to drive the clamps to slide along the support. One of the support and the rotating part is provided with the spring positioning part, and the other is provided with a first positioning groove and a second positioning groove. The exposed part of the spring positioning part is a spherical surface. The first positioning groove and the second positioning groove are arranged adjacent to each other. When the spring positioning part is clamped into the first positioning groove, the clamps realize clamping. When the spring positioning part is clamped into the second positioning groove, the clamps realize unclamping. The application can prevent the clamps from being in an intermediate state between clamping and unclamping, and improve the safety of the pressure cooker.

Description

Technical Field

[0001] This application relates to the field of kitchen utensil technology, and more particularly to a clamping device, a pressure cooker lid, and a pressure cooker. Background Technology

[0002] A pressure cooker is a common cooking appliance. Its main function is to increase the heating temperature by increasing the pressure inside the pot, thereby increasing the heating speed. A pressure cooker mainly consists of a pressure lid and a pot body. The lid and pot body are connected by clamps, which can move relative to the pot body to simultaneously clamp and release the pressure. Only when the clamps are in the clamped state can the pressure cooker withstand high pressure. Sometimes, users may accidentally operate the pressure cooker, causing the clamps to be in an intermediate state between clamping and releasing. If this occurs, high pressure will build up inside the pot, which can be dangerous. Utility Model Content

[0003] This application provides a clamping device, a pressure cooker lid, and a pressure cooker to prevent the clamp from entering an intermediate state between clamping and unclamping, thereby improving the safety of using the pressure cooker.

[0004] The first aspect of this application provides a clamping device, which includes:

[0005] Support components;

[0006] At least two clamps are slidably connected to the support to clamp or declamp;

[0007] A rotating component is rotatably connected to the support component, and the rotating component is drively connected to the clamps to drive each clamp to slide along the support component;

[0008] Of the support member and the rotating member, one is provided with an elastic positioning member, and the other is provided with a first positioning groove and a second positioning groove. The exposed part of the elastic positioning member is a spherical surface, and the first positioning groove and the second positioning groove are arranged adjacent to each other.

[0009] When the elastic positioning element is engaged in the first positioning groove, each of the clamps clamps.

[0010] When the elastic positioning element is engaged in the second positioning groove, each of the clamps releases its clamping action.

[0011] The clamping device provided in this application includes a support member, at least two clamps, and a rotating member. The clamps are slidably connected to the support member to clamp or release the clamps. The rotating member is rotatably connected to the support member and is drively connected to the clamps to drive each clamp to slide along the support member. One of the support member and the rotating member is provided with an elastic positioning member, and the other is provided with a first positioning groove and a second positioning groove. When the elastic positioning member is engaged in the first positioning groove, each clamp is clamped, and a reliable connection can be formed between the pressure cooker lid and the pot body. When the elastic positioning member is engaged in the second positioning groove, each clamp is released, and the pressure cooker lid can be mounted on or removed from the pot body. The exposed part of the elastic positioning member is a spherical surface, and the first positioning groove and the second positioning groove are arranged adjacent to each other. Therefore, when the exposed part of the elastic positioning member abuts between the first positioning groove and the second positioning groove, the large spherical surface abuts against the very small gap, making it difficult for the elastic positioning member to maintain a stable state. The elastic positioning member will automatically move towards the first positioning groove or the second positioning groove. Thus, the elastic positioning member can only change abruptly between the state of being engaged in the first positioning groove and the state of being engaged in the second positioning groove, thereby preventing the clamp from entering an intermediate state between clamping and unclamping, and improving the safety of using the pressure cooker.

[0012] Optionally, the rotating component includes a first turntable and a second turntable connected to each other. The first turntable is located below the support component and is throttle-connected to the clamp. The second turntable is located above the support component. On one hand, the second turntable and the first turntable are respectively clamped on the upper and lower sides of the support component, which can increase the stability of the rotating component's installation and fixation. On the other hand, the upper second turntable receives external forces, while the lower first turntable transmits the forces to the clamp, which can distribute the forces and make the rotating component more evenly stressed, avoiding defects such as stress concentration caused by unilateral force.

[0013] Optionally, a column protrudes from the upper surface of the support member, and the column is located below the second turntable; the elastic positioning member is installed inside the column, and the first positioning groove and the second positioning groove are disposed on the lower surface of the second turntable. On the one hand, installing the elastic positioning member on the support member and disposing of the positioning groove on the second turntable can maintain the integrity of the support member's structure and prevent the recessed positioning groove from weakening the strength of the support member; on the other hand, by locally thickening the support member with the column, sufficient installation and movement space for the elastic positioning member can be provided, thus avoiding material waste.

[0014] Optionally, the elastic positioning member includes a ball and a first elastic member, the first elastic member abutting against the inner side of the ball to force the ball to protrude outward. Since the ball can roll within the mounting hole, the flexibility of the elastic positioning member's movement is further increased, ensuring that the state of the elastic positioning member abutting between the first positioning groove and the second positioning groove can be disrupted.

[0015] Optionally, the first positioning groove and the second positioning groove include columnar grooves and rounded corners at the openings. The minimum distance between the two columnar grooves is 1mm to 1.5mm, and the radius of the rounded corners at the openings is 0.5mm to 0.75mm. This ensures both the structural strength of the first and second positioning grooves and the stability of the clamp.

[0016] Optionally, the clamping device further includes an outer cover connected above the support member. A first push button and a second push button are mounted on one side of the outer cover along its radial direction. Rollers are respectively mounted on the inner ends of the first and second push buttons. The rotating member has a first protrusion and a second protrusion, spaced apart around the axis of rotation of the rotating member. The roller of the first push button acts on the first protrusion to force the rotating member to drive the clamping device in the direction of clamping. The roller of the second push button acts on the second protrusion to force the rotating member to drive the clamping device in the direction of releasing the clamp. The first and second push buttons provide the power for the rotation of the rotating member. The user performs the lid-closing operation by squeezing the outer cover and the first push button, and the lid-opening operation by squeezing the outer cover and the second push button, making the lid-closing operation simpler and improving the user experience of the pressure cooker.

[0017] Optionally, the outer cover is provided with a mounting bracket, which has a first mounting post and a second mounting post arranged side by side; the first push button is fastened to the first mounting post and can slide along the first mounting post; the second push button is fastened to the second mounting post and can slide along the second mounting post. The fastening mechanism simultaneously achieves sliding guidance and sliding stroke limitation, resulting in a simple structure that is easy to install and disassemble.

[0018] Optionally, the lower surface of the outer cover includes a slot and a slide rail arranged in sequence. The slot is recessed into the lower surface of the outer cover, and the slide rail protrudes from the lower surface of the outer cover. The slide rail has a mounting opening at one end near the slot. The upper surface of the mounting bracket has a locking protrusion. The mounting bracket slides into the slide rail along the mounting opening, and the locking protrusion engages with the slot. The slide rail reliably limits the circumferential movement of the mounting bracket, and the locking protrusion engages with the slot to lock the mounting bracket within the slide rail. This ensures a tight and stable fit between the mounting bracket and the outer cover, effectively preventing the mounting bracket from loosening or falling off during use, thus affecting the normal operation of the first or second push button.

[0019] A second aspect of this application provides a pressure cooker lid, comprising a lid body and any of the clamping devices provided in this application, the clamping device being connected to the lid body. When the exposed portion of the elastic positioning member abuts between the first positioning groove and the second positioning groove, the larger spherical surface abuts against the very small gap, making it difficult for the elastic positioning member to maintain a stable state. The elastic positioning member will automatically move towards the first positioning groove or the second positioning groove. Therefore, the elastic positioning member can only abruptly change between the state of being engaged in the first positioning groove and the state of being engaged in the second positioning groove, thereby preventing the clamp from entering an intermediate state between clamping and unclamping, improving the safety of using the pressure cooker.

[0020] A third aspect of this application provides a pressure cooker, comprising a pot body and any of the pressure cooker lids provided in this application. When the pressure cooker lid is closed on the pot body, the clamping device can simultaneously clamp the pressure cooker lid and the pot body. When the exposed portion of the elastic positioning member abuts between the first positioning groove and the second positioning groove, the large spherical surface abuts against a very small gap, making it difficult for the elastic positioning member to maintain a stable state. The elastic positioning member will automatically move towards the first positioning groove or the second positioning groove. Therefore, the elastic positioning member can only abruptly change between the state of being engaged in the first positioning groove and the state of being engaged in the second positioning groove, thereby preventing the clamp from entering an intermediate state between clamping and unclamping, and improving the safety of using the pressure cooker.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a pressure cooker lid provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the internal structure of a portion of the pressure cooker lid provided in an embodiment of this application;

[0024] Figure 3 A schematic diagram of the elastic positioning element and positioning groove provided in the embodiments of this application;

[0025] Figure 4 This is a frontal projection view of the positioning groove provided in an embodiment of this application;

[0026] Figure 5 This is a cross-sectional structural diagram of a portion of the pressure cooker lid provided in an embodiment of this application;

[0027] Figure 6 A schematic diagram of the support member provided in an embodiment of this application;

[0028] Figure 7 A cross-sectional structural schematic diagram of the pressure cooker lid provided in an embodiment of this application;

[0029] Figure 8 This is a schematic diagram of the internal structure of the outer cover provided in an embodiment of this application.

[0030] Figure label:

[0031] 10-Clamping device;

[0032] 20-Cap;

[0033] 1-Supporting component;

[0034] 11-Elastic positioning element;

[0035] 111 - Ball bearing;

[0036] 112 - First elastic element;

[0037] 12-Columns;

[0038] 2- Clamps;

[0039] 21-Guide groove;

[0040] 3-Rotating component;

[0041] 3a - First turntable;

[0042] 3b - Second turntable;

[0043] 3c - Columnar groove;

[0044] 3D - Mouth fillet;

[0045] 3e - Threaded fasteners;

[0046] 31-Guide pin;

[0047] 32-First positioning slot;

[0048] 33 - Second positioning groove;

[0049] 34 - First bump;

[0050] 35 - Second bump;

[0051] 4-Outer cover;

[0052] 41 - First push button;

[0053] 42 - Second push button;

[0054] 43-Roller;

[0055] 44 - Mounting bracket;

[0056] 441 - First mounting post;

[0057] 442 - Second mounting post;

[0058] 443-Carbide;

[0059] 45-Card slot;

[0060] 46-Slide rail;

[0061] 47 - Second elastic element.

[0062] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0064] In the description of this application, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; unless otherwise specified or explained, the term "multiple" refers to two or more; the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] In the description of this specification, it should be understood that the directional terms such as "upper" and "lower" used in the embodiments of this application are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should also be understood that when it is mentioned that an element is connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected to the other element "upper" or "lower" through an intermediate element.

[0066] like Figures 1-8As shown in the illustration, this application provides a pressure cooker lid that can be fitted onto a pot body, forming a pressure cooker together with the pot body. The pressure cooker lid includes a detachably connected lid body 20 and a clamping device 10. For example, the clamping device 10 can be connected to the lid body 20 by screws or clips. When the pressure cooker lid is fitted onto the pot body, the clamping device 10 can simultaneously clamp the pressure cooker lid and the pot body, thereby achieving a reliable connection between the pressure cooker lid and the pot body. The lid body 20 is provided with a sealing ring, a pressure limiting valve, and a check valve. The sealing ring is used to form a seal between the pressure cooker lid and the pot body, the pressure limiting valve is used to limit the maximum pressure inside the pot, and the check valve is used to establish a sealed state or a pressure relief state.

[0067] The clamping device 2 provided in this embodiment includes a support member 1, at least two clamps 2, and a rotating member 3. The support member 1 connects to the lid, forming the main structure of the clamping device 2. All other components of the clamping device 2 are mounted on the support member 1, allowing the clamping device 2 to function as a single unit, facilitating disassembly, assembly, cleaning, and maintenance of the pressure cooker lid as needed. The clamps 2 are slidably connected to the support member 1 to clamp or release the clamp. Specifically, the clamps 2 can move towards the axis of the lid to clamp, and can move away from the axis of the lid to release the clamp. The rotating member 3 is coaxially arranged with the lid and rotatably connected to the support member 1. The rotating member 3 is also drively connected to the clamps 2, driving each clamp 2 to slide along the support member 1. For example, a guide pin 31 and a guide groove 21 can be provided between the rotating member 3 and the clamps 2 to convert the rotation of the rotating member 3 into the sliding of the clamps 2, thereby enabling the rotating member 3 to drive the clamps 2 to clamp or release the clamp.

[0068] Furthermore, of the support member 1 and the rotating member 3, one is provided with an elastic positioning member 11, and the other is provided with a first positioning groove 32 and a second positioning groove 33. The first positioning groove 32 and the second positioning groove 33 are arranged along the rotation direction of the rotating member 3. As the rotating member 3 rotates, the elastic positioning member 11 can be engaged in the first positioning groove 32 or the second positioning groove 33. When the elastic positioning member 11 is engaged in the first positioning groove 32, each clamp 2 clamps, and at this time, a reliable connection can be formed between the pressure cooker lid and the pot body; when the elastic positioning member 11 is engaged in the second positioning groove 33, each clamp 2 releases its clamp, and at this time, the pressure cooker lid can be mounted on the pot body or removed from the pot body.

[0069] The number of elastic positioning elements 11 can be one or more than two. When the number of elastic positioning elements 11 is not less than two, each elastic positioning element 11 is symmetrically distributed around the rotation axis center of the rotating element 3 to increase the stability of the rotating element 3. It can be understood that a first positioning groove 32 and a second positioning groove 33 are respectively provided for each elastic positioning element 11, each first positioning groove 32 is symmetrically distributed around the rotation axis center of the rotating element 3, and each second positioning groove 33 is symmetrically distributed around the rotation axis center of the rotating element 3.

[0070] Furthermore, the exposed portion of the elastic positioning member 11 is a spherical surface, meaning that the exposed portion of the elastic positioning member 11 is curved as a whole, and the degree of curvature remains consistent at any position of the exposed portion. The first positioning groove 32 and the second positioning groove 33 are arranged adjacent to each other, meaning that the opening of the first positioning groove 32 is tangent to the opening of the second positioning groove 33 or has a very small gap. Therefore, when the exposed portion of the elastic positioning member 11 abuts between the first positioning groove 32 and the second positioning groove 33, the larger spherical surface abuts against the very small gap, making it difficult for the elastic positioning member 11 to maintain a stable state. The elastic positioning member 11 will automatically move towards the first positioning groove 32 or the second positioning groove 33. Therefore, the elastic positioning member 11 can only change abruptly between the state of being engaged in the first positioning groove 32 and the state of being engaged in the second positioning groove 33, thereby preventing the clamp 2 from entering an intermediate state between clamping and unclamping, and improving the safety of using the pressure cooker.

[0071] Furthermore, the elastic positioning member 11 includes a ball 111 and a first elastic member 112, which are accommodated within a mounting hole. The first elastic member 112 abuts against the inner side of the ball 111, forcing the ball 111 to protrude outward; that is, a portion of the ball 111 forms the exposed portion of the elastic member. Because the ball 111 can roll within the mounting hole, the flexibility of the elastic positioning member 11's movement is further increased, ensuring that the state of the elastic positioning member 11 abutting between the first positioning groove 32 and the second positioning groove 33 can be disrupted.

[0072] Furthermore, the first positioning groove 32 and the second positioning groove 33 include a columnar groove body 3c and a rounded corner 3d at the opening, with the outer edges of the two rounded corners 3d being tangent or having a very small gap. On the one hand, this creates a very small gap at the opening between the first positioning groove 32 and the second positioning groove 33, ensuring that the elastic positioning member 11 cannot be stably positioned between the first positioning groove 32 and the second positioning groove 33; on the other hand, it creates a larger gap inside the first positioning groove 32 and the second positioning groove 33, ensuring that the groove walls of the first positioning groove 32 and the second positioning groove 33 have sufficient strength to prevent the elastic positioning member 11 from damaging the first positioning groove 32 or the second positioning groove 33.

[0073] Furthermore, the minimum distance L between the two columnar grooves 3c is 1mm to 1.5mm. For example, the minimum distance L between the two columnar grooves 3c can be 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, or 1.5mm, etc., which can ensure both the structural strength of the first positioning groove 32 and the second positioning groove 33, and the stability of the clamp 2. When the minimum distance L between the two columnar grooves 3c is less than 1.0mm, the internal spacing between the first positioning groove 32 and the second positioning groove 33 is relatively small, which is prone to damage. When the minimum distance L between the two columnar grooves 3c is greater than 1.5mm, a large radius rounded corner 3d is required to form a small gap at the opening. The rounded corner 3d occupies a large depth, resulting in the effective depth of the columnar grooves 3c being too shallow, and the stability of the clamp 2 being poor.

[0074] Furthermore, the radius of the rounded corner 3d at the mouth is 0.5mm to 0.75mm. For example, the radius of the rounded corner 3d at the mouth can be 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, or 0.75mm, etc. This ensures both the structural strength of the first positioning groove 32 and the second positioning groove 33, and the stability of the clamp 2. When the radius of the rounded corner 3d at the mouth is less than 0.5mm, the distance covered by the rounded corner 3d at the mouth is small, and the internal spacing between the first positioning groove 32 and the second positioning groove 33 is relatively small, which can easily lead to damage. When the radius of the rounded corner 3d at the mouth is greater than 0.75mm, the depth occupied by the rounded corner 3d at the mouth is relatively large, resulting in an insufficiently shallow effective depth of the columnar groove 3c, and poor stability of the clamp 2.

[0075] In one specific embodiment, the diameter of the first positioning groove 32 and the second positioning groove 33 is 4.5 mm and the depth is 2 mm, the minimum distance L between the two columnar grooves 3c is 1.5 mm, the radius of the opening 3d is 0.5 mm to 0.75 mm, and the diameter of the spherical surface of the elastic positioning member 11 (e.g., the diameter of the ball 111) is 5 mm.

[0076] Furthermore, the rotating component 3 includes a first turntable 3a and a second turntable 3b connected to each other. For example, the first turntable 3a and the second turntable 3b can be connected to each other by means of snap-fit ​​or threaded fastener 3e. The first turntable 3a is located below the support component 1 and is connected to the clamp 2 in a transmission manner. The second turntable 3b is located above the support component 1. On the one hand, the second turntable 3b and the first turntable 3a are respectively clamped on the upper and lower sides of the support component 1, which can increase the stability of the rotating component 3 in installation and fixation. On the other hand, the upper second turntable 3b receives external force, and the lower first turntable 3a transmits the force to the clamp 2, which can distribute the force and make the overall force on the rotating component 3 more uniform, avoiding defects such as stress concentration caused by unilateral force.

[0077] Furthermore, a connecting shaft may protrude above the first turntable 3a. The connecting shaft comprises a first shaft segment and a second shaft segment from bottom to top. The first shaft segment has a circular cross-section, while the second shaft segment has a non-circular cross-section such as a hexagon. The first shaft segment rotatably engages with the support member 1 to ensure the rotational accuracy of the first turntable 3a, thereby ensuring the stability of the clamp 2's movement. The second shaft segment inserts into the second turntable 3b to ensure that the first turntable 3a and the second turntable 3b can rotate synchronously, preventing relative rotation between the first turntable 3a and the second turntable 3b, which could lead to power loss or abnormal movement of the clamp 2.

[0078] Furthermore, the elastic positioning element 11 and the rotating shaft of the rotating element 3 are parallel to each other. That is, the elastic positioning element 11 is located on one side of the rotating shaft of the rotating element 3, and the extension and retraction direction of the elastic positioning element 11 is parallel to the rotating shaft of the rotating element 3. This allows the distance between the elastic positioning element 11 and the rotating shaft of the rotating element 3 to be reasonably set as needed, ensuring both the structural strength of the elastic positioning element 11 itself and improving the compactness of the overall structure. Specifically, when the elastic positioning element 11 is too close to the rotating shaft of the rotating element 3, the movement path of the elastic positioning element 11 is too short, resulting in the cross-section of the first positioning groove 32 and the second positioning groove 33 being too small. Correspondingly, the diameter of the elastic positioning element 11 is too small, resulting in insufficient strength. When the elastic positioning element 11 is too far away from the rotating shaft of the rotating element 3, the movement path of the elastic positioning element 11 is too large, the cross-section of the first positioning groove 32 and the second positioning groove 33 is too large, and correspondingly, the diameter of the elastic positioning element 11 is too large, resulting in an excessively large overall volume.

[0079] Furthermore, a column 12 protrudes from the upper surface of the support member 1, and the column 12 is parallel to the rotating shaft of the rotating member 3, located below the second turntable 3b. An elastic positioning member 11 is installed inside the column 12, and a first positioning groove 32 and a second positioning groove 33 are located on the lower surface of the second turntable 3b. On the one hand, installing the elastic positioning member 11 on the support member 1 and setting the positioning grooves on the second turntable 3b allows the support member 1 to maintain its structural integrity and avoids weakening the strength of the support member 1 due to recessed positioning grooves. On the other hand, by locally thickening the support member 1 with the column 12, sufficient installation and movement space for the elastic positioning member 11 is provided, avoiding material waste.

[0080] Furthermore, the clamp 2 device also includes an outer cover 4, which is connected above the support member 1. A first push button 41 and a second push button 42 are mounted on one side of the outer cover 4 along its radial direction. The rotating member 3 has a first protrusion 34 and a second protrusion 35, which are spaced apart around the axis of rotation of the rotating member 3. The first push button 41 acts on the first protrusion 34 to force the rotating member 3 to drive the clamp 2 in the direction of clamping; the second push button 42 acts on the second protrusion 35 to force the rotating member 3 to drive the clamp 2 in the direction of releasing the clamp. Thus, the first push button 41 and the second push button 42 provide the power for the rotation of the rotating member 3. The user performs the lid-closing operation by squeezing the outer cover 4 and the first push button 41, and the lid-opening operation by squeezing the outer cover 4 and the second push button 42, making the lid-closing operation simpler and improving the user experience of the pressure cooker.

[0081] Furthermore, rollers 43 are respectively installed on the inner ends of the first push button 41 and the second push button 42. The roller 43 of the first push button 41 acts on the first protrusion 34. That is, when the user squeezes the first push button 41, the roller 43 of the first push button 41 abuts against the first protrusion 34 and rolls along the surface of the first protrusion 34, thereby reducing the resistance of the relative movement between the first push button 41 and the first protrusion 34, making the action more convenient and efficient. Similarly, the roller 43 of the second push button 42 acts on the second protrusion 35. When the user squeezes the second push button 42, the roller 43 of the second push button 42 abuts against the second protrusion 35 and rolls along the surface of the second protrusion 35.

[0082] Furthermore, the outer cover 4 is provided with a mounting bracket 44, which has a first mounting post 441 and a second mounting post 442 arranged side by side. The first push button 41 is snapped into the first mounting post 441 and can slide along the first mounting post 441. That is, the first push button 41 and the first mounting post 441 are provided with a mutually cooperating snap and a sliding groove. Similarly, the second push button 42 is snapped into the second mounting post 442 and can slide along the second mounting post 442. Thus, the snap-fit ​​mechanism simultaneously achieves sliding guidance and sliding stroke limitation, resulting in a simple structure that is easy to install and disassemble.

[0083] Furthermore, a second elastic element 47 may be provided between the first push button 41 and the first mounting post 441, and between the second push button 42 and the second mounting post 442, so that the first push button 41 and the second push button 42 can be automatically reset, making it convenient for the user to squeeze and operate again.

[0084] Furthermore, the lower surface of the outer cover 4 includes a slot 45 and a slide rail 46 arranged sequentially. The slot 45 is recessed into the lower surface of the outer cover 4, and the slide rail 46 protrudes from the lower surface of the outer cover 4. The end of the slide rail 46 near the slot 45 has a mounting opening. The upper surface of the mounting bracket 44 has a protrusion 443. The mounting bracket 44 slides into the slide rail 46 along the mounting opening, and the protrusion 443 engages with the slot 45. The slide rail 46 provides a reliable circumferential limit for the mounting bracket 44. The protrusion 443 engages with the slot 45 to lock the mounting bracket 44 within the slide rail 46, thereby forming a tight and stable fit between the mounting bracket 44 and the outer cover 4, effectively preventing the mounting bracket 44 from loosening or falling off during use, which would affect the normal use of the first push button 41 or the second push button 42.

[0085] In addition, this application also provides a pressure cooker, which includes a pot body and any of the pressure cooker lids provided in this application. When the pressure cooker lid is closed on the pot body, the clamping device 10 can simultaneously clamp the pressure cooker lid and the pot body.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A tongs device, characterized in that, include: Support component (1); At least two clamps (2) are slidably connected to the support (1) to clamp or de-clamp; A rotating component (3) is rotatably connected to the support component (1). The rotating component (3) is connected to the clamps (2) in a transmission manner, so as to drive each clamp (2) to slide along the support component (1). Of the support member (1) and the rotating member (3), one is provided with an elastic positioning member (11), and the other is provided with a first positioning groove (32) and a second positioning groove (33). The exposed part of the elastic positioning member (11) is a spherical surface, and the first positioning groove (32) and the second positioning groove (33) are arranged adjacent to each other. When the elastic positioning member (11) is engaged in the first positioning groove (32), each of the clamps (2) clamps. When the elastic positioning member (11) is engaged in the second positioning groove (33), each of the clamps (2) releases its clamping action.

2. The tongs apparatus of claim 1, wherein, The rotating component (3) includes a first turntable (3a) and a second turntable (3b) connected to each other. The first turntable (3a) is located below the support (1) and is connected to the clamp (2) in a transmission manner. The second turntable (3b) is located above the support (1).

3. The tongs apparatus of claim 2, wherein, The upper surface of the support member (1) is provided with a column (12), which is located below the second turntable (3b); The elastic positioning element (11) is installed inside the column (12), and the first positioning groove (32) and the second positioning groove (33) are disposed on the lower surface of the second turntable (3b).

4. The tongs apparatus of claim 1, wherein, The elastic positioning member (11) includes a ball (111) and a first elastic member (112), the first elastic member (112) abutting against the inner side of the ball (111) to force the ball (111) to protrude outward.

5. The tongs apparatus of claim 1, wherein, The first positioning groove (32) and the second positioning groove (33) include a columnar groove (3c) and a rounded corner (3d) at the opening. The minimum distance between the two columnar grooves (3c) is 1mm to 1.5mm, and the radius of the rounded corner (3d) at the opening is 0.5mm to 0.75mm.

6. The tongs device according to any one of claims 1-5, characterized in that, The clamping device also includes an outer cover (4), which is connected above the support (1). The outer cover (4) has a first push button (41) and a second push button (42) installed on one side of its radial direction. The inner ends of the first push button (41) and the second push button (42) are respectively equipped with rollers (43). The rotating component (3) is provided with a first protrusion (34) and a second protrusion (35), and the first protrusion (34) and the second protrusion (35) are spaced apart around the rotation axis of the rotating component (3); The roller (43) of the first push button (41) acts on the first protrusion (34) to force the rotating member (3) to drive the clamp (2) to move in the direction of clamping; The roller (43) of the second push button (42) acts on the second protrusion (35) to force the rotating member (3) to drive the clamp (2) to move in the direction of unclamping.

7. The tongs apparatus of claim 6, wherein, The outer cover (4) is provided with a mounting bracket (44), and the mounting bracket (44) is provided with a first mounting post (441) and a second mounting post (442) arranged side by side; The first push button (41) is snapped to the first mounting post (441) and can slide along the first mounting post (441); The second push button (42) is snapped into the second mounting post (442) and can slide along the second mounting post (442).

8. The tongs apparatus of claim 7, wherein, The lower surface of the outer cover (4) includes a slot (45) and a slide rail (46) arranged in sequence. The slot (45) is recessed in the lower surface of the outer cover (4), and the slide rail (46) protrudes from the lower surface of the outer cover (4). The slide rail (46) has an installation opening at one end near the slot (45). The upper surface of the mounting bracket (44) is provided with a locking protrusion (443). The mounting bracket (44) slides into the slide rail (46) along the mounting opening, and the locking protrusion (443) is engaged in the locking groove (45).

9. A pressure cooker lid characterized in that It includes a cover and a clamping device as described in any one of claims 1-8, the clamping device being connected to the cover.

10. A pressure cooker characterized by The device includes a pot body and a pressure cooker lid as described in claim 9. When the pressure cooker lid is closed on the pot body, the clamping device can simultaneously clamp the pressure cooker lid and the pot body.

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