Pot cover and pressure cooker

Abstract

The present application relates to a pot cover and a pressure cooker. The pot cover includes a cover body, a driving assembly, a transmission assembly and at least two clamping assemblies. The driving assembly includes a slidingly matched driving member and a driving fitting member. The driving member moves along the axial direction of the pot cover to drive the driving fitting member to rotate around its own axis. The transmission assembly is connected to the driving fitting member and rotates synchronously with the driving fitting member. The clamping assembly can be movably installed on the cover body, including a clamp and a connecting rod. The two ends of the connecting rod are respectively hinged to the transmission assembly and the clamp, and are used to drive the clamp to move along the radial direction of the pot cover under the drive of the transmission assembly, so that the cover body and the pot body are locked or unlocked. The transmission process between the driving member and the driving fitting member converts the axial driving force into a rotational force in the horizontal direction, and then realizes the movement of the clamp through the connecting rod, which is convenient for users to operate with one hand. The rotation of a transmission assembly can realize the drive of all clamping assemblies, simplifying the pot cover structure and improving the stability and reliability of the transmission process.

Description

Technical Field

[0001] The present application relates to the field of kitchenware, and in particular to a pot cover and a pressure cooker. Background Art

[0002] The lid of the pressure cooker is usually provided with a locking mechanism for clamping and locking the lid and the pot body to improve the safety of the pressure cooker in a working state.

[0003] Some existing pressure cookers use a clamp-type locking mechanism, which drives the clamp to move radially along the pot cover by pressing a button, thereby clamping the edge of the pot cover and the edge of the pot body, so that the pot cover and the pot body are fixed. However, the existing locking mechanism still has the problem of complex transmission structure and unstable transmission process. Utility Model Content

[0004] The present application provides a pot cover and a pressure cooker, which can solve the problem of unstable transmission process of the locking mechanism of the pot cover in the prior art.

[0005] In a first aspect, the present application provides a pot cover, comprising a cover body, and the pot cover further comprises:

[0006] A driving assembly, comprising a driving member and a driving matching member that are slidably matched, wherein the driving member moves along the axial direction of the pot cover to drive the driving matching member to rotate around its own axis;

[0007] A transmission assembly connected to the driving mating member and rotating synchronously with the driving mating member;

[0008] At least two clamping assemblies are movably mounted on the cover body, and the clamping assembly includes a clamp and a connecting rod. The two ends of the connecting rod are respectively hinged to the transmission assembly and the clamp. The connecting rod is used to drive the clamp to move radially along the pot cover under the drive of the transmission assembly to lock or unlock the cover body and the pot body.

[0009] In the above scheme, the transmission process between the driving member and the driving matching member can convert the axial driving force of the pot cover into a rotational force in the horizontal direction, and then realize the radial movement of the clamp along the pot cover through the connecting rod. The driving method is relatively simple and does not require too much driving force. The user can complete the operation with one hand. Moreover, when the transmission component rotates, it can drive the connecting rods of all clamping components to move at the same time, that is, through the rotation of one transmission component, the driving of all clamping components can be realized, and there is no need to set up multiple transmission mechanisms to drive the clamping components to move separately, thereby simplifying the overall structure of the pot cover, improving the stability and reliability of the transmission process, and can also improve the synchronization between multiple clamping components, improving the user experience.

[0010] In a possible design, the driving member and the driving mating member are an outer gear and an inner gear meshing with each other; and both the outer gear and the inner gear are helical gears.

[0011] In the above scheme, when the driving member moves downward along the axial direction of the pot cover, the inner and outer helical gears mesh with each other, and the driving mating member can rotate around its own axis under the drive of the driving member, thereby converting the axial driving force into a horizontal rotational force. In addition, the connection stability of the gear structure is better, the transmission process is more reliable, and it is not easy to be damaged, which is conducive to improving the service life of the pot cover.

[0012] In a possible design, the driving assembly further includes a button, which is fixedly connected to the driving member; the button moves along the axial direction of the pot cover to drive the driving member to move synchronously along the axial direction of the pot cover.

[0013] In the above scheme, the button is used to control the movement of the driving member, and the button is fixedly connected to the driving member. The user can drive the driving member by pressing the button downward along the axial direction of the pot cover, which is more convenient to operate.

[0014] In a possible design, the pot cover also includes a shell, which is installed on the surface of the cover body, and the drive assembly and the transmission assembly are installed in the shell; a limiting portion is provided in the shell; the drive assembly also includes a drive return spring, one end of which is fixed to the drive member, and the other end is abutted against the limiting portion.

[0015] In the above scheme, when the user presses the button downward, the button drives the driving member to move downward synchronously, so that the driving return spring is gradually compressed under the squeezing of the driving member and the limit portion; when the user stops pressing the button, the force acting on the driving member disappears, and the resistance encountered by the driving return spring is reduced, and the driving member can be pushed to return to its original position under the action of its own restoring force, thereby realizing automatic return of the driving member.

[0016] In a possible design, the transmission assembly includes a turntable and a transmission shaft, and along the axial direction of the pot cover, two ends of the transmission shaft are respectively connected to the driving fitting and the turntable; the connecting rod is hinged to the turntable.

[0017] In the above scheme, the driving fitting is connected to the turntable through a transmission shaft. When the driving fitting rotates, it can drive the turntable to rotate synchronously, and the turntable can drive the connecting rod hinged thereto to move synchronously, thereby transmitting the power of the driving fitting to the connecting rod to realize the transmission process. The overall structure of the transmission assembly is relatively simple, and the connecting rod is directly hinged on the turntable. The rotation of a turntable drives all the clamping assemblies to move synchronously, which can improve the transmission efficiency and the synchronization between the various clamping assemblies.

[0018] In a possible design, a connecting hole is provided on the side wall of the shell, and the connecting rod is passed through the connecting hole; the side wall of the connecting hole abuts against the connecting rod to limit the moving distance of the connecting rod in the width direction of the connecting hole.

[0019] In the above scheme, one end of the connecting rod is connected to the turntable, and the other end passes through the connecting hole to be connected to the clamp. The connecting hole has a limiting effect on the movement of the connecting rod, and can control the distance that the connecting rod rotates with the turntable, thereby controlling the radial movement distance of the clamp along the pot cover, avoiding the clamp from clamping the cover body and the pot body too tightly and causing damage, which is beneficial to extending the service life of the clamp.

[0020] In a possible design, a protrusion is provided on the clamp, and the connecting rod is hinged to the protrusion; the clamping assembly also includes a connecting rod return spring, and the two ends of the connecting rod return spring are respectively abutted against the side wall of the shell and the side wall of the protrusion; at least one of the side wall of the shell and the side wall of the protrusion is provided with a mounting column, and the connecting rod return spring is sleeved on the mounting column.

[0021] In the above scheme, when the clamp is driven by the connecting rod to move radially inward along the pot cover, the connecting rod reset spring is gradually compressed under the pressure of the shell and the protrusion; when the clamp is driven by the connecting rod to move radially outward along the pot cover, the resistance of the connecting rod reset spring is reduced, and the clamp can be pushed to reset under the action of its own restoring force, thereby realizing the rapid automatic reset of the clamp. At least one of the side wall of the shell and the side wall of the protrusion is provided with a mounting column, and the connecting rod reset spring is sleeved on the mounting column. The mounting column has a limiting effect on the connecting rod reset spring to prevent the connecting rod reset spring from shifting during the compression and extension process.

[0022] In a possible design, the shell is provided with a slide groove, which extends along the axial direction of the pot cover; the pot cover also includes a locking piece, which is installed on the button, and when the button moves along the axial direction of the pot cover, the locking piece slides along the slide groove; the shell is also provided with a lock hole, which connects the slide groove with the outside world, and the locking piece can extend to the outside world along the lock hole to put the drive assembly in a locked state; the locking piece can also retract into the slide groove along the lock hole to put the drive assembly in an unlocked state.

[0023] In the above scheme, the locking member is movably mounted on the outer side wall of the button, and the locking and unlocking of the driving assembly can be achieved by controlling the movement of the locking member. When the locking member extends from the lock hole to the outside, the lock hole has a limiting effect on the locking member to limit the button from continuing to move along the axial direction of the pot cover. At this time, the driving assembly is in a locked state, and the transmission assembly and the clamping assembly are also in a locked state. When the locking member is retracted into the slide groove, the lock hole releases the limiting effect on the locking member, and the button can move along the axial direction of the pot cover. At this time, the driving assembly is in an unlocked state, and the transmission assembly and the clamping assembly are also in an unlocked state, and the clamp can move along the radial direction of the pot cover. By setting a matching locking member and lock hole, the driving assembly has a locked state or an unlocked state, thereby realizing the control of the movement state of the clamp, preventing the clamp from moving at will, so as to improve the locking reliability of the clamp on the pot cover and the cover body.

[0024] In a possible design, the pot cover also includes a check valve, which is movably mounted on the cover body and is provided with a limiting protrusion; the clamp is provided with a limiting hole, and the check valve is used to limit the radial movement of the clamp along the pot cover when at least part of the limiting protrusion is located in the limiting hole; the check valve is also used to release the limitation on the clamp when the limiting protrusion is disengaged from the limiting hole.

[0025] In the above scheme, when the pot cover and the pot body are in a locked state, the clamp can move to the position where the limit hole and the stop valve correspond to the axial position of the pot cover. When the pot body is in a high pressure state, the stop valve is pushed up. At this time, the limit protrusion can form a limit matching structure with the limit hole. The clamp is in a locked state and cannot move in the radial direction of the pot cover even under the action of a driving force. This can prevent the user from accidentally touching the locking piece to unlock and causing the pot cover and the pot body to unlock, thereby improving the safety of the pot cover. When the pressure state in the pot body returns to normal, the stop valve drops and disengages from the limit hole. At this time, the limit protrusion releases the limit on the clamp, and the clamp can move freely in the radial direction of the pot cover.

[0026] A second aspect of the present application provides a pressure cooker, comprising a cooker body and the cooker cover described above.

[0027] In the above scheme, the transmission structure in the pot cover is relatively simple, and has high stability and reliability. The user can control the movement of the clamping assembly with one hand to unlock or lock the pot cover and the pot body.

[0028] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of the pot cover provided in this application when the cover body and the pot body are in an unlocked state;

[0030] Figure 2 A schematic diagram of the structure of the pot cover provided in this application when the cover body and the pot body are in a locked state;

[0031] Figure 3 for Figure 1 A schematic diagram of a portion of the structure of the pot cover;

[0032] Figure 4 for Figure 2 A schematic diagram of a portion of the structure of the pot cover;

[0033] Figure 5 for Figure 4 Schematic diagram of the assembly structure of the drive component and the transmission component;

[0034] Figure 6 for Figure 1 A schematic diagram of the structure of the shell in FIG.

[0035] Figure 7 for Figure 6 A schematic diagram of the structure of the shell in another viewing angle;

[0036] Figure 8 for Figure 1 A schematic diagram of the structure of the buttons in FIG.

[0037] Fig. 9 for Figure 8 A structural diagram of some structures in;

[0038] Fig.10 for Figure 1 Schematic diagram of the partial cross-sectional structure of the pot cover.

[0039] Reference numerals:

[0040] 1-cover body;

[0041] 11- positioning column;

[0042] 12-valve hole;

[0043] 121-step part;

[0044] 2-Drive assembly;

[0045] 21- driving member;

[0046] 22- driving fitting;

[0047] 221-first flat key;

[0048] 23-buttons;

[0049] 231-Mounting rod;

[0050] 24-driving return spring;

[0051] 25-locking member;

[0052] 251-limiting ribs;

[0053] 26-locking return spring;

[0054] 3- Transmission assembly;

[0055] 31- turntable;

[0056] 311-second flat key;

[0057] 312-first connecting shaft;

[0058] 32- transmission shaft;

[0059] 33-bearing;

[0060] 4-Clamping assembly;

[0061] 41- Clamp;

[0062] 411-limiting hole;

[0063] 412-limiting slot;

[0064] 42-connecting rod;

[0065] 43-bump;

[0066] 431- second connecting shaft;

[0067] 432 - second mounting column;

[0068] 44-connecting rod return spring;

[0069] 5- housing;

[0070] 501-upper housing;

[0071] 502-lower housing;

[0072] 51-limiting part;

[0073] 52- communication hole;

[0074] 53-chute;

[0075] 54-keyhole;

[0076] 55-first mounting column;

[0077] 6-Stop opening valve;

[0078] 61-Limiting protrusion.

[0079] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0080] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0081] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0082] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0083] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0084] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0085] The embodiment of the present application provides a pressure cooker, comprising a cooker body and a cooker cover that can be interlocked, such as Figure 1 and Figure 2 As shown, the pot cover includes a cover body 1 and a clamping assembly 4 movably mounted on the cover body 1, the clamping assembly 4 includes a clamp 41 which can move along the radial direction of the pot cover, when the clamp 41 moves to clamp the edge of the cover body 1 and the edge of the pot body, the pot cover and the pot body are locked; when the clamp 41 moves to separate from the pot body, the pot cover and the pot body are unlocked.

[0086] In order to ensure the reliability of locking the pot cover and the pot body, the number of clamping assemblies 4 should be at least 2, and can be 3, 4, 5, 6, etc., which is not limited in this embodiment. When the number of clamping assemblies 4 is 2, the two clamping assemblies 4 are preferably arranged opposite to each other along the radial direction X of the pot cover; when the number of clamping assemblies 4 is 3 or more, the plurality of clamping assemblies 4 are preferably evenly distributed along the circumference of the pot cover.

[0087] like Figure 1 and Figure 3 As shown, the pot cover also includes a driving assembly 2 and a transmission assembly 3. The driving assembly 2 includes a driving member 21 and a driving fitting member 22 that are slidably matched. The driving member 21 moves along the axial direction Z of the pot cover to drive the driving fitting member 22 to rotate around its own axis; the transmission assembly 3 is connected to the driving fitting member 22 and rotates synchronously with the driving fitting member 22; each clamping assembly 4 also includes a connecting rod 42, and the two ends of the connecting rod 42 of each clamping assembly 4 are respectively hinged to the driving assembly 3 and the clamp 41, and the connecting rod 42 is used to drive the clamp 41 to move along the radial direction X of the pot cover under the drive of the transmission assembly 3, so as to lock or unlock the cover body 1 and the pot body.

[0088] like Figure 2 and Figure 4 As shown, when the user presses the driving member 21 downward, the driving member 21 can slide relative to the driving fitting member 22, so that the driving fitting member 22 rotates under the drive of the driving member 21, and the transmission assembly 3 can rotate synchronously with the driving fitting member 22, and drive the connecting rod 42 to move along the circumferential direction of the transmission assembly 3, resulting in displacement. At this time, the clamp 41 can move inward along the radial direction X of the pot cover under the drive of the connecting rod 42, thereby clamping the lid 1 and the pot body to achieve locking. Similarly, when the lid 1 and the pot body need to be unlocked, the user only needs to push the driving member 21 upward, so that the driving fitting member 22 drives the transmission assembly 3 to rotate in the opposite direction, and then the connecting rod 42 drives the clamp 41 to reset.

[0089] The transmission process between the driving member 21 and the driving matching member 22 can convert the driving force in the axial direction Z of the pot cover into a rotational force in the horizontal direction, and then realize the movement of the clamp 41 along the radial direction X of the pot cover through the connecting rod 42. The driving method is relatively simple and does not require too much driving force. The user can complete the operation with one hand. Moreover, when the transmission component 3 rotates, it can simultaneously drive the connecting rods 42 of all clamping components 4 to move, that is, through the rotation of one transmission component 3, it can realize the driving of all clamping components 4, and there is no need to set up multiple transmission mechanisms to drive the clamping components 4 to move separately, thereby simplifying the overall structure of the pot cover, improving the stability and reliability of the transmission process, and can also improve the synchronization between multiple clamping components 4, and enhance the user's experience.

[0090] In a specific embodiment, Figure 1As shown, the clamp 41 is provided with a limiting groove 412, and the cover body 1 is provided with a positioning column 11 that is slidably connected to the limiting groove 412. When the clamp 41 moves along the radial direction X of the pot cover, the positioning column 11 can guide the clamp 41, prevent the clamp 41 from deflecting during the movement, and improve the stability of the clamp 41. At the same time, the positioning column 11 can also limit the movement of the clamp 41, limiting the moving distance of the clamp 41 in the radial direction X of the pot cover. In addition, the positioning column 11 can also indicate the positioning of the installation of the clamp 41, which is conducive to improving the assembly efficiency of the pot cover.

[0091] In a specific embodiment, Figure 3 As shown, the driving member 21 and the driving matching member 22 are an outer gear and an inner gear meshing with each other, and both the outer gear and the inner gear are helical gears.

[0092] like Figure 4 As shown, when the driving member 21 moves downward along the axial direction Z of the pot cover, due to the mutual meshing of the inner and outer bevel gears, the driving matching member 22 can rotate around its own axis under the drive of the driving member 21, thereby converting the driving force in the axial direction Z into a rotational force in the horizontal direction. In addition, the connection stability of the gear structure is better, the transmission process is more reliable, and it is not easy to be damaged, which is conducive to improving the service life of the pot cover.

[0093] Alternatively, the driving member 21 and the driving fitting member 22 may not adopt a gear structure: the driving member 21 is sleeved on the outside of the driving fitting member 22, one of the driving member 21 and the driving fitting member 22 is provided with an inclined groove, and the other is provided with a protrusion in the same direction as the inclined groove, and the driving force in the axial direction Z can also be converted into a rotational force in the horizontal direction through the sliding fit between the inclined protrusion and the inclined groove.

[0094] In a specific embodiment, Figure 3 As shown, the transmission assembly 3 includes a turntable 31 and a transmission shaft 32 . Along the axial direction Z of the pot cover, two ends of the transmission shaft 32 are respectively connected to the driving fitting 22 and the turntable 31 ; the connecting rod 42 is hinged to the turntable 31 .

[0095] The driving fitting 22 is connected to the rotating disk 31 through a transmission shaft 32. When the driving fitting 22 rotates, the rotating disk 31 can be driven to rotate synchronously, and the rotating disk 31 can drive the connecting rod 42 hinged thereto to move synchronously, thereby transmitting the power of the driving fitting 22 to the connecting rod 42 to realize the transmission process. The overall structure of the transmission assembly 3 is relatively simple, and the connecting rod 42 is directly hinged on the rotating disk 31. The rotation of one rotating disk 31 drives all the clamping assemblies 4 to move synchronously, which can improve the transmission efficiency and the synchronization between the various clamping assemblies 4.

[0096] Specifically, Figure 5As shown, the driving fitting 22 is fixedly connected to the transmission shaft 32 via the first flat key 221, and the transmission shaft 32 is fixedly connected to the rotating disk 31 via the second flat key 311, which has a simple structure and high connection stability. The rotating disk 31 is also provided with a first connecting shaft 312, and the connecting rod 42 is rotatably connected to the first connecting shaft 312 to realize the hinged connection between the rotating disk 31 and the connecting rod 42.

[0097] like Figure 3 As shown, a protrusion 43 is provided on the clamp 41 , a second connecting shaft 431 is provided on the top of the protrusion 43 , and one end of the connecting rod 42 away from the rotating disk 31 is rotatably connected to the second connecting shaft 431 to realize the hinge between the clamp 41 and the connecting rod 42 .

[0098] In addition, the transmission assembly 3 further includes a bearing 33 , which is sleeved on the transmission shaft 32 and located between the turntable 31 and the cover body 1 , and is used to assist the turntable 31 in rotating and improve the stability of the turntable 31 .

[0099] In a specific embodiment, Figure 1 As shown, the driving assembly 2 also includes a button 23, which is fixedly connected to the driving member 21. The button 23 moves along the axial direction Z of the pot cover to drive the driving member 21 to move synchronously along the axial direction Z of the pot cover.

[0100] The button 23 is used to control the movement of the driving member 21. The button 23 has a accommodating cavity. The driving member 21 is located inside the accommodating cavity and is fixedly connected to the inner wall of the button 23. The user can drive the driving member 21 by pressing the button 23 downward along the axial direction Z of the pot cover, which makes the operation more convenient.

[0101] like Figure 1 As shown, the pot cover also includes a shell 5, which is fixedly mounted on the surface of the cover body 1, and the driving assembly 2 and the transmission assembly 3 are installed in the shell 5. A limiting portion 51 is arranged in the shell 5, and the driving assembly 2 also includes a driving return spring 24, one end of which is fixed to the driving member 21, and the other end is abutted and matched with the limiting portion 51.

[0102] Specifically, Figure 6 and Figure 7 As shown, the shell 5 includes an upper shell 501 and a lower shell 502. The upper shell 501 is used to accommodate the driving assembly 2. The limiting portion 51 is used to separate the upper shell 501 and the lower shell 502. The turntable 31 and the bearing 33 are both accommodated in the lower shell 502, and the transmission shaft 32 passes through the middle of the limiting portion 51.

[0103] At least part of the button 23 is located in the upper shell 501 and is slidably connected to the upper shell 501. When the user presses the button 23 downward, the button 23 drives the driving member 21 to move downward synchronously, so that the driving return spring 24 is gradually compressed under the squeezing of the driving member 21 and the limit portion 51; when the user stops pressing the button 23, the force acting on the driving member 21 disappears, and the resistance of the driving return spring 24 is reduced, and the driving member 21 can be pushed to return to its original position under the action of its own restoring force, thereby realizing automatic return of the driving member 21.

[0104] like Figure 1 As shown, the side wall of the housing 5 is provided with a connecting hole 52 , the connecting rod 42 is passed through the connecting hole 52 , and the side wall of the connecting hole 52 abuts against the connecting rod 42 to limit the moving distance of the connecting rod 42 in the width direction of the connecting hole 52 .

[0105] One end of the connecting rod 42 is connected to the turntable 31, and the other end passes through the connecting hole 52 so as to be connected to the protrusion 43. The connecting hole 52 has a limiting effect on the movement of the connecting rod 42, and can control the distance that the connecting rod 42 rotates with the turntable 31, thereby controlling the moving distance of the clamp 41 along the radial direction X of the pot cover, avoiding the clamp 41 from clamping the cover body 1 and the pot body too tightly to cause damage, which is beneficial to extending the service life of the clamp 41.

[0106] In a specific embodiment, Figure 1 As shown, the clamping assembly 4 further includes a connecting rod return spring 44 , and two ends of the connecting rod return spring 44 are respectively abutted against the side wall of the housing 5 and the side wall of the protrusion 43 .

[0107] like Figure 2 As shown, when the clamp 41 is driven by the connecting rod 42 to move inward along the radial direction X of the pot cover, the connecting rod reset spring 44 is gradually compressed under the extrusion of the shell 5 and the protrusion 43; when the clamp 41 is driven by the connecting rod 42 to move outward along the radial direction X of the pot cover, the resistance encountered by the connecting rod reset spring 44 is reduced, and the clamp 41 can be pushed to reset under the action of its own restoring force, thereby realizing the rapid and automatic reset of the clamp 41.

[0108] Specifically, at least one of the side walls of the shell 5 and the side walls of the protrusion 43 is provided with a mounting column, and the connecting rod return spring 44 is sleeved on the mounting column. The mounting column has a limiting effect on the connecting rod return spring 44 to prevent the connecting rod return spring 44 from shifting during compression and extension.

[0109] Specifically, only the first mounting column 55 can be set on the shell 5, one end of the connecting rod return spring 44 is sleeved on the first mounting column 55, and the other end is directly abutted against the side wall of the protrusion 43; or, only the second mounting column 432 is set on the protrusion 43, one end of the connecting rod return spring 44 is sleeved on the second mounting column 432, and the other end is directly abutted against the side wall of the shell 5; or the first mounting column 55 and the second mounting column 432 can be set at the same time, which is beneficial to improve the installation stability of the connecting rod return spring 44, so that the structural reliability of the clamping assembly 4 is higher.

[0110] In a specific embodiment, Figure 6 and Figure 7 As shown, the housing 5 is provided with a slide groove 53, and the slide groove 53 extends along the axial direction Z of the pot cover. Figure 8 As shown, the pot cover also includes a locking member 25, which is mounted on the button 23. When the button 23 moves along the axial direction X of the pot cover, the locking member 25 slides along the slide groove 53. The housing 5 is also provided with a locking hole 54, which connects the slide groove 53 with the outside world. The locking member 25 can extend to the outside world along the locking hole 54 to put the drive assembly 2 in a locked state, and the locking member 25 can also be retracted into the slide groove 53 along the locking hole 54 to put the drive assembly 2 in an unlocked state.

[0111] The locking member 25 is movably mounted on the outer wall of the button 23, and the locking and unlocking of the driving assembly 2 can be achieved by controlling the movement of the locking member 25. When the locking member 25 extends from the lock hole 54 to the outside, the lock hole 54 has a limiting effect on the locking member 25 to limit the button 23 from continuing to move along the axial direction Z of the pot cover. At this time, the driving assembly 2 is in a locked state, and the transmission assembly 3 and the clamping assembly 4 are also in a locked state. When the locking member 25 is retracted into the slide groove 53, the lock hole 54 releases the limiting effect on the locking member 25, and the button 23 can move along the axial direction Z of the pot cover. At this time, the driving assembly 2 is in an unlocked state, and the transmission assembly 3 and the clamping assembly 4 are also in an unlocked state, and the clamp 41 can move along the radial direction X of the pot cover.

[0112] By providing matching locking members 25 and locking holes 54, the driving assembly 2 can be in a locked state or an unlocked state, thereby controlling the movement state of the clamp 41 and preventing the clamp 41 from moving at will, so as to improve the reliability of the clamp 41 in locking the pot cover and the lid body.

[0113] like Figure 8 and Fig. 9As shown, the pot cover also includes a locking return spring 26, and the side wall of the button 23 is provided with a mounting rod 231. The locking return spring 26 is sleeved on the mounting rod 231, and the locking member 25 is sleeved on the locking return spring 26. The length of the locking return spring 26 is greater than the length of the mounting rod 231, and there is a distance between the locking member 25 and the outer side wall of the button 23, so that the locking member 25 can move relative to the mounting rod 231 in the radial direction X of the pot cover.

[0114] When the user presses the button 23, the locking piece 25 moves downward along the slide groove 53. During this process, the locking reset spring 26 is always in a compressed state until the locking piece 25 moves to a position corresponding to the locking hole 54. The locking piece 25 can pop out under the action of the restoring force of the locking reset spring 26 and lock with the locking hole 54, thereby realizing the locking of the drive component 2, the transmission component 3 and the clamping component 4; when the lock needs to be released, the user only needs to press the locking piece 25 back into the slide groove 53.

[0115] like Figure 8 As shown, the locking member 25 is further provided with a limiting rib 251 extending in the circumferential direction, which is used to abut against the inner wall of the slide groove 53 for limiting when the locking member 25 extends from the locking hole 54 , thereby preventing the locking member 25 from escaping from the locking hole 54 .

[0116] In a specific embodiment, Figure 3 and Figure 4 As shown, the pot cover also includes a stop valve 6, which is movably mounted on the cover body 1. The stop valve 6 is provided with a limiting protrusion 61, and the clamp 41 is provided with a limiting hole 411. The stop valve 6 is used to limit the movement of the clamp 41 along the radial direction X of the pot cover when at least part of the limiting protrusion 61 is located in the limiting hole 411; the stop valve 6 is also used to release the limitation on the clamp 41 when the limiting protrusion 61 is disengaged from the limiting hole 411.

[0117] like Fig.10 As shown, the cover body 1 is provided with a valve hole 12, and the stop valve 6 is movably installed in the valve hole 12. A step portion 121 is provided in the valve hole 12, and the limiting protrusion 61 overlaps the step portion 121, which can prevent the stop valve 6 from coming out of the valve hole 12. When the pot cover and the pot body are in a locked state, the clamp 41 can move to the limit hole 411 and the valve hole 12 along the axial direction Z of the pot cover. When the pot body is in a high pressure state, the stop valve 6 is pushed up. At this time, the limiting protrusion 61 can form a limiting matching structure with the limiting hole 411. The clamp 41 is in a locked state and cannot move along the radial direction X of the pot cover even under the action of a driving force, which can prevent the user from accidentally touching the locking member 25 to unlock and causing the pot cover and the pot body to unlock, thereby improving the safety of the pot cover. When the pressure state in the pot body returns to normal, the stop valve 6 descends and disengages from the limiting hole 411. At this time, the limiting protrusion 61 releases the limit on the clamp 41, and the clamp 41 can move freely along the radial direction X of the pot cover.

[0118] In summary, the specific working process of the pot cover provided by this application is as follows:

[0119] After the pot cover is buckled onto the pot body, the user can press the button 23 downward along the axial direction Z of the pot cover, drive the driving member 21 to move downward synchronously and compress the driving reset spring 24, the driving matching member 22 can rotate under the drive of the driving member 21, and drive the turntable 31 to rotate synchronously through the transmission shaft 32, the connecting rod 42 hinged on the turntable 31 rotates synchronously with the turntable 31, and drives the clamp 42 to move inward along the radial direction Z of the pot cover, and the protrusion 43 compresses the connecting rod reset spring 44 with the movement of the clamp 42. The locking member 25 moves downward synchronously with the button 23 in the slide groove 53. When the locking member 25 moves to a position corresponding to the height of the lock hole 54, it can pop out along the lock hole 54 under the action of the locking reset spring 26, so that the position of the clamp 41 is locked. At this time, the user can stop pressing the button 23, and the pot cover and the pot body can remain locked under the clamping action of the clamp 41.

[0120] When the pot cover and the pot body are in a locked state, the stop valve 6 is aligned with the limiting hole 411 on the clamp 41 along the axial Z position of the pot cover, and the pressure cooker can enter the working state. When the pressure in the pot increases, the stop valve 6 is pushed up, so that the limiting protrusion 61 and the limiting hole 411 form a limiting matching structure. The stop valve 6 not only plays a safety and explosion-proof role, but also limits the movement of the clamp 41 in the radial direction X of the pot cover, preventing the user from misoperating and causing the pot cover and the pot body to be unlocked. When the pressure in the pot drops to a normal value, the stop valve 6 drops to be separated from the limiting hole 411 to automatically release the limiting effect on the clamp 41.

[0121] If the user needs to unlock the pot lid and the pot body, the user can press the locking member 25 to retract into the sliding groove 53. At this time, no pressure is applied to the button 23. The driving member 21 can drive the button 23 to reset upward along the axial direction Z of the pot lid under the action of the restoring force of the driving reset spring 24. The driving matching member 22 can rotate and reset in the opposite direction under the drive of the driving member 21, and drive the turntable 31 to rotate synchronously through the transmission shaft 32. At this time, the connecting rod 42 rotates and resets synchronously with the turntable 31. The clamp 41 can move outward along the radial direction X of the pot lid under the action of the driving force of the connecting rod 42 and the restoring force of the connecting rod reset spring 44, thereby releasing the lock on the pot lid and the pot body.

[0122] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pot cover, comprising a cover body (1), characterized in that: The pot cover also includes: A driving assembly (2) comprising a driving member (21) and a driving matching member (22) that are slidably matched, wherein the driving member (21) moves along the axial direction of the pot cover to drive the driving matching member (22) to rotate around its own axis; A transmission assembly (3) connected to the driving fitting (22) and rotating synchronously with the driving fitting (22); At least two clamping assemblies (4) are movably mounted on the cover body (1), the clamping assemblies (4) comprising a clamp (41) and a connecting rod (42), the two ends of the connecting rod (42) being respectively hinged to the transmission assembly (3) and the clamp (41), the connecting rod (42) being used for driving the clamp (41) to move along the radial direction of the pot cover under the drive of the transmission assembly (3) so as to lock or unlock the cover body (1) and the pot body.

2. The pot cover according to claim 1, characterized in that: The driving member (21) and the driving matching member (22) are an external gear and an internal gear meshing with each other; The external gear and the internal gear are both helical gears.

3. The pot cover according to claim 1, characterized in that: The driving component (2) further comprises a button (23), wherein the button (23) is fixedly connected to the driving member (21); The button (23) moves along the axial direction of the pot cover to drive the driving member (21) to move synchronously along the axial direction of the pot cover.

4. The pot cover according to claim 3, characterized in that: The pot cover further comprises a shell (5), wherein the shell (5) is mounted on the surface of the cover body (1), and the drive assembly (2) and the transmission assembly (3) are mounted inside the shell (5); A limiting portion (51) is provided in the housing (5); The driving assembly (2) further comprises a driving return spring (24), one end of which is fixed to the driving member (21), and the other end of which is in abutment with the limiting portion (51).

5. The pot cover according to claim 1, characterized in that: The transmission assembly (3) comprises a rotating disk (31) and a transmission shaft (32), and along the axial direction of the pot cover, two ends of the transmission shaft (32) are respectively connected to the driving fitting (22) and the rotating disk (31); The connecting rod (42) is hinged to the rotating disk (31).

6. The pot cover according to claim 4, characterized in that: The side wall of the housing (5) is provided with a communicating hole (52), and the connecting rod (42) is passed through the communicating hole (52); The side wall of the communicating hole (52) is in abutment with the connecting rod (42) to limit the moving distance of the connecting rod (42) in the width direction of the communicating hole (52).

7. The pot cover according to claim 4, characterized in that: The clamp (41) is provided with a protrusion (43), and the connecting rod (42) is hinged to the protrusion (43); The clamping assembly (4) further comprises a connecting rod reset spring (44), the two ends of which are respectively in abutment with the side wall of the housing (5) and the side wall of the protrusion (43); At least one of the side wall of the housing (5) and the side wall of the protrusion (43) is provided with a mounting column, and the connecting rod return spring (44) is sleeved on the mounting column.

8. The pot cover according to claim 4, characterized in that: The housing (5) is provided with a slide groove (53), and the slide groove (53) extends along the axial direction of the pot cover; The pot cover further comprises a locking member (25), wherein the locking member (25) is mounted on the button (23), and when the button (23) moves along the axial direction of the pot cover, the locking member (25) slides along the sliding groove (53); The housing (5) is further provided with a locking hole (54), wherein the locking hole (54) connects the slide groove (53) with the outside world, and the locking member (25) can extend along the locking hole (54) to the outside world, so that the driving assembly (2) is in a locked state; The locking member (25) can also be retracted along the locking hole (54) into the sliding groove (53) so that the driving assembly (2) is in an unlocked state.

9. The pot cover according to claim 1, characterized in that: The pot cover further comprises a stop valve (6), the stop valve (6) being movably mounted on the cover body (1), and the stop valve (6) being provided with a limiting protrusion (61); The clamp (41) is provided with a limiting hole (411), and the non-opening valve (6) is used to limit the radial movement of the clamp (41) along the pot cover when at least a part of the limiting protrusion (61) is located in the limiting hole (411); The non-opening valve (6) is also used to release the limiting effect on the clamp (41) when the limiting protrusion (61) is disengaged from the limiting hole (411).

10. A pressure cooker, characterized in that: The pressure cooker comprises a cooker body and a cooker cover according to any one of claims 1 to 9.

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