Pot cover assembly and pressure cookerTechnical Field
The invention relates to the technical field of pressure cookers, in particular to a pot cover assembly and a pressure cooker.
Background
The pressure cooker is also called as a pressure cooker, has high temperature and high pressure characteristics, greatly shortens the time consumed for cooking food, and remarkably improves the cooking efficiency, thereby being widely applied.
The exhaust valve is used as a core component in the pressure cooker, and the main purpose of the exhaust valve is to ensure that the pressure in the pressure cooker is in a specific pressure range so as to avoid safety accidents caused by overhigh pressure in the pressure cooker, the exhaust valve is arranged on a cooker cover of the pressure cooker, and an exhaust valve core for installing the exhaust valve is arranged on the cooker cover.
During the exhaust process of the exhaust valve, the air pressure in the pressure cooker needs to overcome the downward force F of the exhaust valvePressing down For the most primitive pressure cooker, FPressing down Is the gravity G of the exhaust valve, and the gravity G of the exhaust valve is a certain value, correspondingly FPressing down And the exhaust pressure of the exhaust valve is a fixed value.
However, as the living standard of people increases, the demands of people on the living of substances are also more and more severe, and the pressure cooker has higher demands, if the pressure cooker is required to have different cooking pressures, different pressures can be adopted for cooking different foods, for example, higher pressure can be adopted firstly when spareribs are cooked so as to cook the spareribs thoroughly, and then when vegetables such as lotus roots are added, the pressure cooker can be switched to low pressure so as to avoid the spareribs from being cooked; the pressure switching can be performed in the cooking process of the same food to realize the exhaust boiling effect so as to improve the taste of the food.
To achieve pressure adjustability of the pressure cooker, mainly by adjusting the downward force F of the exhaust valvePressing down However, adjusting the downward force F of the exhaust valvePressing down In various ways, the gravity of the exhaust valve (a part added with a counterweight) is regulated at the early stage, and later, the magnetic attraction parts are arranged on the pot cover and the exhaust valve and mutually attracted, and F is changed by changing the magnetic attraction force of the two magnetic attraction partsPressing down =G+fSuction pipe ,fSuction pipe The adjustment modes of the device mainly comprise 2 types: one is an electronically regulated type, in which f is varied by changing an electrical signal parameter such as the magnitude of a current by providing the magnetic attraction member as an electronically inductive magnetic attraction memberSuction pipe The mode is generally adopted on a high-grade pressure cooker, and correspondingly, the cost is relatively high; another form is mechanical adjustment, by varying f by varying the facing area between the two magnets or the distance between the twoSuction pipe And, it is common to vary the distance between the two magnets.
The more common implementation of changing the distance between two magnetic attraction pieces is as follows: the exhaust valve is internally provided with a first magnetic attraction piece, the pot cover is provided with a second magnetic attraction piece below the exhaust valve, the second magnetic attraction piece is elastically installed on the pot cover through an elastic reset piece, the pot cover is also provided with a pressing piece for pressing the second magnetic attraction piece, one side of the pressing piece is provided with a lock catch structure, the pressing piece is pressed down, so that the pressing piece and the second magnetic attraction piece are positioned at a lower position, the purpose of pressure regulation can be achieved, and the pressing piece is buckled by the lock catch structure when being positioned at the lower position, and the pressing piece and the second magnetic attraction piece are limited at the lower position, so that the pressure pot is kept in a lower pressure state, once the pressure pot is required to be switched to a high pressure state, after the pressure pot is tripped, the pressing piece and the second magnetic attraction piece are reset to a high position under the action of the elastic force of the elastic reset piece.
The pressing piece and the locking structure are unlocked in various manners, for example, the locking structure can be driven to move to be separated from the pressing piece through the cover opening action of the pot cover. In order to enrich the unlocking modes of the pressing piece and the locking structure, a brand new unlocking mode is necessary to design.
Disclosure of Invention
The invention mainly aims to provide a pot cover assembly, and aims to provide a novel unlocking mode, so that the pressure resetting switching of a pressure cooker with the pot cover assembly is more convenient and practical.
In order to achieve the above purpose, the pot cover assembly provided by the invention comprises a pot cover, an exhaust valve and a pressure regulating reset structure, wherein the exhaust valve and the pressure regulating reset structure are arranged on the pot cover, and the pressure regulating reset structure comprises:
the first magnetic attraction piece is fixedly arranged on the exhaust valve;
the second magnetic attraction piece is positioned below the exhaust valve, forms attraction force with the first magnetic attraction piece, can move relative to the first magnetic attraction piece in the up-down direction and has a first position and a second position;
the first resetting piece is arranged on the pot cover and used for resetting the second magnetic attraction piece to the first position;
the linkage piece is pivoted in the pot cover and is provided with a first end and a second end which are respectively arranged at two ends of the pivoting position, and the first end is connected with the second magnetic attraction piece;
the pressure regulating key is arranged on the pot cover and drives the second magnetic attraction piece to move from the first position to the second position through the linkage piece;
the locking structure is arranged in the pot cover and used for blocking the linkage piece from moving to the first position when the second magnetic attraction piece moves to the second position;
the unlocking key is arranged on the pot cover and provided with a moving stroke in the up-down direction and is used for driving the linkage piece to horizontally rotate until the linkage piece is separated from the locking structure.
Preferably, the unlocking key comprises a first pressing part exposed on the outer surface of the pot cover and a first triggering part fixedly arranged below the first pressing part; the linkage piece is provided with a driving position far away from the pivoting position; the lower end of the first triggering part is provided with a first driving inclined plane, and/or the linkage part is provided with a second driving inclined plane matched with the first driving inclined plane at the driving position; the first driving inclined plane and the second driving inclined plane extend towards the direction close to the pivoting position of the linkage piece and are obliquely arranged with the vertical direction.
Preferably, the first triggering part is arranged beside the second end; the second end is provided with a first wedge block at one side facing the first triggering part, the inclined plane of the first wedge block is positioned on the upper surface of the first wedge block, the second end is arranged in a downward inclined mode in the direction from the second end to the first triggering part, and the second driving inclined plane is the inclined plane of the first wedge block.
Preferably, the unlocking key further comprises a second reset piece sleeved on the first triggering portion, the lower end of the second reset piece is elastically abutted to the inside of the pot cover, the upper end of the second reset piece elastically abuts against the lower surface of the first pressing portion, and the second reset piece is used for resetting the unlocking key to a pressing initial position.
Preferably, the first triggering part is arranged above the second end; the upper surface of the second end is provided with a driving groove corresponding to the first triggering part, and the second driving inclined plane is arranged on the inner side wall of the driving groove.
Preferably, the first reset piece is arranged below the second magnetic attraction piece; the first end extends to the side of the second magnetic attraction piece from the pivoting position, a second wedge block is arranged on the side face facing the second magnetic attraction piece, and the inclined surface of the second wedge block is abutted to the second magnetic attraction piece so as to push the second magnetic attraction piece from the first position to the second position when the first end rotates towards the second magnetic attraction piece.
Preferably, the first reset member is a compression spring, the first position is located above the second position, the inclined surface of the second wedge block is located on the lower surface of the second wedge block, and the first reset member is arranged in an upward inclined manner in the direction from the first end of the linkage member to the first magnetic attraction member.
Preferably, the first reset member is an extension spring, the first position is located below the second position, the inclined surface of the second wedge block is located on the upper surface of the second wedge block, and the first reset member is arranged in a downward inclined manner in a direction from the first end of the linkage member to the first magnetic attraction member.
Preferably, the pressure regulating key is arranged beside the second end and is positioned on the same side of the linkage piece as the second wedge block; the pressure regulating key has a movable stroke in the up-down direction and comprises a second pressing part exposed on the outer surface of the pot cover and a second triggering part fixedly arranged below the second pressing part; the second end is provided with a third wedge block at one side facing the pressure regulating key, and the inclined surface of the third wedge block is positioned on the upper surface of the third wedge block and is arranged in a downward inclined manner in the direction from the second end of the linkage piece to the second triggering part; the lower end of the second trigger part is provided with a trigger inclined plane corresponding to the inclined plane of the third wedge-shaped block.
Preferably, the locking structure is formed above the triggering inclined plane of the second triggering part and is used for being matched with the free end of the third wedge block to lock the second end when the second magnetic attraction piece moves to the second position.
Preferably, the second triggering part is arranged in a barb shape, a hook part of the second triggering part extends towards the second end, and the triggering inclined plane is the lower surface of the hook part; the locking structure is the upper surface of the hook part and is used for enabling the lower surface of the free end of the third wedge-shaped block to overlap when the second magnetic attraction piece moves to the second position, so that the second end is locked.
Preferably, the locking structure is a locking groove arranged above the triggering inclined plane by the second triggering part, and the locking groove is used for clamping in the free end of the third wedge-shaped block and locking the second end when the second magnetic attraction piece moves to the second position.
Preferably, the pressure regulating key further comprises a third reset piece, the third reset piece is sleeved on the second triggering portion, the lower end of the third reset piece is elastically abutted to the inside of the pot cover, the upper end of the third reset piece elastically abuts against the lower surface of the second pressing portion, and the third reset piece is used for resetting the pressure regulating key to an initial position of the pressure regulating key.
Preferably, the first reset element is arranged below the pivoting position of the linkage element, and the first position is arranged above the second position; the pressure regulating key is arranged above the linkage piece and provided with a movable stroke in the up-down direction; the second magnetic attraction piece is fixedly arranged at the first end; and the pressure regulating key is pressed downwards, so that the linkage piece is pressed downwards, and the first end drives the second magnetic attraction piece to move downwards from the first position to the second position.
Preferably, a sliding guide groove extending vertically is formed below the linking piece on the pot cover, a sliding plate is arranged in the sliding guide groove, and the sliding plate is connected with the sliding guide groove in a sliding manner so as to be slidable vertically; the linkage piece is fixedly provided with a downward extending pivot shaft, and the lower end of the pivot shaft is rotatably fixed on the sliding plate;
the first reset piece comprises a reset pressure spring arranged below the sliding plate and a reset torsion spring arranged above the sliding plate, wherein the reset torsion spring comprises a torsion spring body sleeved on the pivot shaft, and an upper extension end and a lower extension end which are respectively arranged at two ends of the torsion spring body, the upper extension end is fixedly connected with the pivot shaft or the linkage piece, and the lower extension end is fixedly connected with the sliding plate.
Preferably, the locking structure is formed at the inner end of a self-locking sliding block of the pot cover, and the self-locking sliding block is elastically and movably arranged on the pot cover and can stretch and retract towards the center direction of the pot cover; the locking structure is the lower surface of the inner end of the self-locking sliding block and is used for being lapped on the upper surface of the free end of the first end when the second magnetic attraction piece moves to the second position, so as to lock the first end.
The invention also provides a pressure cooker, which comprises a cooker cover assembly, wherein the cooker cover assembly comprises a cooker cover, and an exhaust valve and a pressure regulating reset structure which are arranged on the cooker cover, and the pressure regulating reset structure comprises:
the first magnetic attraction piece is fixedly arranged on the exhaust valve;
the second magnetic attraction piece is positioned below the exhaust valve, forms attraction force with the first magnetic attraction piece, can move relative to the first magnetic attraction piece in the up-down direction and has a first position and a second position;
the first resetting piece is arranged on the pot cover and used for resetting the second magnetic attraction piece to the first position;
the linkage piece is pivoted in the pot cover and is provided with a first end and a second end which are respectively arranged at two ends of the pivoting position, and the first end is connected with the second magnetic attraction piece;
the pressure regulating key is arranged on the pot cover and drives the second magnetic attraction piece to move from the first position to the second position through the linkage piece;
the locking structure is arranged in the pot cover and used for blocking the linkage piece from moving to the first position when the second magnetic attraction piece moves to the second position;
the unlocking key is arranged on the pot cover and provided with a moving stroke in the up-down direction and is used for driving the linkage piece to horizontally rotate until the linkage piece is separated from the locking structure.
According to the technical scheme, the pressure regulating key triggers the linkage piece, so that the pressure cooker with the cooker cover assembly can be switched from the first pressure limiting pressure to the second pressure limiting pressure; the interlocking piece can rotate to be separated from the locking structure through the pressing down of the unlocking key, so that the second magnetic attraction piece returns to the first position from the second position under the action of the first resetting piece, and the pressure cooker with the cooker cover assembly can be switched back to the first pressure limiting pressure from the second pressure limiting pressure; therefore, a user can simply press the unlocking key to realize reset switching of the pressure cooker from the second pressure limiting pressure to the first pressure limiting pressure, and convenience and practicability of pressure switching of the pressure cooker are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a pressure regulating and resetting structure of a lid assembly of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the locking structure of the voltage-regulating reset structure of FIG. 1 in a locked state;
FIG. 3 is a cross-sectional view of another embodiment of the locking structure of the pressure-regulating reset structure of FIG. 1 in a locked state;
FIG. 4 is a schematic view of another embodiment of a pressure regulating and resetting structure of the lid assembly of the present invention;
FIG. 5 is a top view of the locking structure of the pressure regulating reset structure of FIG. 4 in a locked state;
FIG. 6 is a top view of the unlocking key of the pressure regulating reset structure of FIG. 4 in an unlocking process;
fig. 7 is a sectional view taken along the S-S direction in fig. 6.
Reference numerals illustrate:
the achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
The invention provides a pot cover assembly, which is used for a pressure cooker.
Referring to fig. 1, in an embodiment of the present invention, the pot cover assembly includes a pot cover, and anexhaust valve 10 and a pressure-regulating reset structure mounted to the pot cover, wherein the pressure-regulating reset structure includes:
the first magnetic attraction piece (not shown) is fixedly arranged on theexhaust valve 10.
The secondmagnetic attraction piece 2 is positioned below theexhaust valve 10 in the pot cover and forms attraction force with the first magnetic attraction piece, and the secondmagnetic attraction piece 2 can move relative to the first magnetic attraction piece in the up-down direction and has a first position and a second position with different distances from the first magnetic attraction piece.
Thefirst reset piece 3 is arranged on the pot cover and is used for resetting the secondmagnetic attraction piece 2 to the first position.
The linkage piece 4 is pivoted in the pot cover and is provided with afirst end 41 and asecond end 42 which are respectively arranged at two sides of the pivoting position, and thefirst end 41 is connected with the secondmagnetic attraction piece 2. Specifically, apivot shaft 15 is arranged in the pot cover, thepivot shaft 15 can be fixedly connected with the inner cover or the surface cover, and the linkage piece 4 is pivoted on thepivot shaft 15; alternatively, one end of thepivot shaft 15 is fixedly connected to the linking member 4, and the other end is rotatably connected to the inner lid or the face lid. Without loss of generality, the linkage member 4 may be in a rod-like arrangement. In the present invention, "thefirst end 41 is connected to the secondmagnetic member 2" may be thefirst end 41 and the secondmagnetic member 2 in contact with each other, or the secondmagnetic member 2 may be directly attached to thefirst end 41.
Thepressure regulating key 5 is arranged on the pot cover, and thepressure regulating key 5 is used for triggering the linkage piece 4 so as to drive the secondmagnetic attraction piece 2 to move from the first position to the second position through thefirst end 41.
The lockingstructure 6 is arranged in the pot cover and used for locking thefirst end 41 or thesecond end 42 when the secondmagnetic attraction piece 2 moves to the second position so as to stop the moving of the linkage piece 4 to the first position and limit the secondmagnetic attraction piece 2 to the second position.
The unlockingkey 7 is arranged on the pot cover and has a moving stroke in the up-down direction, so that when the pot cover is pressed down, thesecond end 42 is driven to horizontally rotate around the pivoting position, and thefirst end 41 or thesecond end 42 is driven to rotate to be separated from the lockingstructure 6, so that the secondmagnetic attraction piece 2 is reset from the second position to the first position under the action of thefirst reset piece 3.
In this embodiment, without losing generality, a concave mounting area (not shown) is provided at the top of the pot cover, and the pressure-regulating reset structure is located in the mounting area. The initial position of the secondmagnetic attraction member 2 is the first position. It will be appreciated that the secondmagnetic attraction member 2 is located at the first position and the second position are different from the first magnetic attraction member in distanceSuction force f between the first magnetic attraction piece and the second magnetic attraction piece in one positionSuction pipe Suction force f between the secondmagnetic attraction piece 2 and the first magnetic attraction piece when being positioned at the second positionSuction pipe Is different, and the first magnetic attraction piece is fixedly arranged in theexhaust valve 10, so that the pressure limiting pressure F of theexhaust valve 10 when the secondmagnetic attraction piece 2 is positioned at the first positionPressing down Pressure limiting pressure F ofexhaust valve 10 when secondmagnetic attraction member 2 is at the second positionPressing down Is different. In the present embodiment, when the pressure regulating key 5 does not trigger the linking member 4, the second magnetic member 2 is maintained at the first position, so that the exhaust valve 10 maintains the first pressure-limiting pressure FPressing down 1 The method comprises the steps of carrying out a first treatment on the surface of the When the pressure regulating key 5 triggers the linkage member 4, the second magnetic attraction member 2 will maintain the second position under the action of the locking structure 6, so that the exhaust valve 10 maintains the second pressure limiting pressure FPressing down 2 . That is, the pressure cooker having the cooker cover assembly can be operated from the first pressure-limiting pressure F by the pressure-regulating key 5Pressing down 1 Switching to the second pressure limiting pressure FPressing down 2 . In this embodiment, the lid assembly is further provided with an unlock key 7 capable of moving up and down, when the unlock key 7 is triggered by pressing down, a user can rotate the first end 41 or the second end 42 of the linkage member 4 to disengage from the lock structure 6, so that the second magnetic member 2 is reset from the second position to the first position under the action of the first reset member 3, and the pressure cooker with the lid assembly can be reset from the second pressure limiting pressure FPressing down 2 Switching back to the first pressure limiting pressure FPressing down 1 In this way, the user can realize that the pressure cooker is operated from the second pressure limiting pressure F simply by pressing the unlocking key 7Pressing down 2 To a first pressure limiting pressure FPressing down 1 The resetting switching of the pressure cooker improves the convenience and practicality of the pressure switching of the pressure cooker.
In this embodiment, further, thefirst reset element 3 is disposed below the secondmagnetic element 2. Thefirst end 41 extends from the pivot position to the side of the secondmagnetic attraction member 2, and asecond wedge 411 tapering outwards is arranged on the side surface facing the secondmagnetic attraction member 2. The inclined surface of thesecond wedge 411 abuts against the secondmagnetic attraction member 2, so that the secondmagnetic attraction member 2 is pushed from the first position to the second position when thefirst end 41 rotates toward the secondmagnetic attraction member 2. Referring to fig. 1, in this embodiment, specifically, anexhaust valve 10 is installed at the upper end of a valve core 11 of a pot cover, and afirst support plate 12 is fixed at the lower end of the valve core 11, and thefirst support plate 12 can be fixed on an inner cover of the pot cover; the secondmagnetic attraction piece 2 is annularly arranged and sleeved on the valve core 11; thefirst reset piece 3 is a compression spring sleeved on the valve core 11, and the upper end and the lower end of thefirst reset piece 3 are respectively connected with the secondmagnetic attraction piece 2 and thefirst support plate 12. It will be appreciated that in this embodiment, the first position is located above the second position, i.e. when the secondmagnetic element 2 is located in the first position, the pressure in the pressure cooker is high, and when the secondmagnetic element 2 is located in the second position, the pressure in the pressure cooker is low. In this embodiment, the inclined surface of thesecond wedge 411 is located on the lower surface of thesecond wedge 411, and is inclined upward in the direction from thefirst end 41 of the linkage member 4 to the first magnetic attraction member, when thesecond wedge 411 rotates to the secondmagnetic attraction member 2, the secondmagnetic attraction member 2 can be pressed downward from the first position to the second position, so that the pressure cooker is switched from high pressure to low pressure, and the exhaust boiling effect is achieved. It should be noted that, in the present embodiment, two driving lugs 21 extending outwards are disposed at the outer edge of the secondmagnetic attraction member 2, and correspondingly, asecond wedge 411 is disposed at thefirst end 41 corresponding to each driving lug 21.
It should be emphasized that the present design is not limited to this, and in other embodiments, it may also be designed as follows: thefirst reset piece 3 is an extension spring sleeved on the valve core 11; the first position is positioned below the second position, namely when the secondmagnetic attraction piece 2 is positioned at the first position, the pressure cooker is at low pressure, and when the secondmagnetic attraction piece 2 is positioned at the second position, the pressure cooker is at high pressure; the inclined plane of thesecond wedge 411 is located on the upper surface of thesecond wedge 411, and is inclined downwards in the direction from thefirst end 41 of the linkage 4 to the first magnetic attraction piece, when thesecond wedge 411 rotates to the secondmagnetic attraction piece 2, the secondmagnetic attraction piece 2 can be propped upwards from the first position to the second position, so that the pressure cooker is switched from low pressure to high pressure.
Referring to fig. 1, in the present embodiment, further, thepressure adjusting key 5 is disposed beside thesecond end 42 and located on the same side of the linkage member 4 as thesecond wedge 411. Thepressure regulating key 5 has a movable stroke in the up-down direction and comprises a secondpressing part 51 exposed on the outer surface of the pot cover and a second triggeringpart 52 fixedly arranged below the secondpressing part 51; it will be appreciated that thesecond trigger portion 52 is movably disposed through the lid of the pan and extends vertically downwardly. Thesecond end 42 is provided with a third wedge-shapedblock 421 which tapers outwards at the side facing thepressure regulating key 5, and the inclined surface of the third wedge-shapedblock 421 is positioned on the upper surface of the third wedge-shapedblock 421 and is arranged obliquely downwards in the direction from thesecond end 42 of the linkage piece 4 to the second triggeringpart 52; the lower end of the second triggeringportion 52 is provided with a triggeringslope 521 corresponding to the slope of thethird wedge 421. Thus, pressing the secondpressing portion 51 of the pressure regulating key 5 downward can move the second triggeringportion 52 of the pressure regulating key 5 downward, so that the triggeringinclined surface 521 presses the inclined surface of thethird wedge 421, and thesecond end 42 rotates around thepivot shaft 15, so that thefirst end 41 rotates toward the secondmagnetic attraction member 2, and thesecond wedge 411 pushes the secondmagnetic attraction member 2 toward the second position, so as to switch from high voltage to low voltage. Preferably, the pressure regulating key 5 further comprises athird reset member 53, thethird reset member 53 being configured to cause the pressure regulating key 5 to have a tendency to reset to its initial position; in this embodiment, the third restoringmember 53 may be flexibly designed according to specific practical use, and simply, thesecond support plate 14 is further disposed in the lid and fixed between the lid and the inner lid, the second triggeringportion 52 of the pressure regulating key 5 movably penetrates through thesecond support plate 14, the third restoringmember 53 is a compression spring set on the second triggeringportion 52, and two ends of the third restoringmember 53 elastically abut against the lower surface of the secondpressing portion 51 and the upper surface of thesecond support plate 14 respectively.
In this embodiment, further, the lockingstructure 6 is formed above the triggeringslope 521 of the second triggeringportion 52, and is configured to cooperate with the free end of thethird wedge 421 to lock thesecond end 42 when the secondmagnetic attraction member 2 moves to the second position. In other words, in this embodiment, the pressure regulating key 5 not only has the function of switching the high pressure to the low pressure, but also has the function of restricting the secondmagnetic attraction piece 2 to the second position, and compared with the technical scheme of separately setting thelocking structure 6, the technical scheme has fewer parts and lower cost. Referring to fig. 1 and 2, in this embodiment, specifically, the second triggeringportion 52 is disposed in a barb shape, the hook portion of the second triggeringportion 52 extends toward thesecond end 42, and the triggeringslope 521 is a lower surface of the hook portion; the lockingstructure 6 is the upper surface of the hook. When the secondmagnetic attraction piece 2 is pressed to the second position by the inclined surface of the second wedge-shapedblock 411, the third wedge-shapedblock 421 just exceeds the upper end of the triggeringinclined surface 521, and the lower surface of the free end of the third wedge-shapedblock 421 is lapped on the upper surface of the hook part of the second triggeringpart 52, so that thesecond end 42 is locked. In this embodiment, the hook portion of thesecond trigger portion 52 increases the area of thetrigger slope 521, thereby increasing the trigger stroke of thetrigger slope 521. However, the present design is not limited thereto, and in other embodiments, the lockingstructure 6 may also be a lockinggroove 6a of the second triggeringportion 52 disposed above the triggeringslope 521, and the lockinggroove 6a is used for locking the free end of thethird wedge 421 when the secondmagnetic attraction member 2 moves to the second position, so as to lock thesecond end 42, as shown in fig. 3.
Referring to fig. 1, in the present embodiment, further, the unlockingkey 7 includes a first pressing portion 72 exposed on the outer surface of the pot cover, and a first triggering portion 71 fixedly disposed below the first pressing portion 72; it will be appreciated that the first trigger portion 71 is movably disposed through the lid of the lid and extends vertically downwardly. The linkage member 4 has a driving position away from the pivot position and corresponding to the first trigger portion 71. Without loss of generality, in this embodiment, the driving position of the linkage 4 is located at thesecond end 42. The lower end of the first trigger part 71 is provided with a first drivinginclined plane 74, and meanwhile, the linkage piece 4 is provided with a second driving inclinedplane 40 matched with the first drivinginclined plane 74 at the driving position; specifically, the first drivinginclined plane 74 and the second drivinginclined plane 40 extend in a direction close to the pivot position of the linking member 4 and are inclined to the vertical direction, so that the first pressing portion 72 of the unlockingkey 7 is pressed downward, so that the first triggering portion 71 of the unlocking key 7 moves downward, the first drivinginclined plane 74 presses the second drivinginclined plane 40, the linking member 4 rotates horizontally, and thesecond end 42 is separated from the lockingstructure 6. In this embodiment, the voltage-regulating reset structure is provided with the first drivinginclined plane 74 and the second drivinginclined plane 40 at the same time; it should be apparent that, in other embodiments, only thefirst driving ramp 74 or thesecond driving ramp 40 may be alternatively provided, which is not limited by the present invention. It should be noted that, when thepressure regulating key 5 is not provided with thethird reset member 53, after thesecond end 42 is separated from the lockingstructure 6, the pressure regulating key 5 may be manually lifted to give way to the reverse rotation of the linkage member 4. Preferably, the unlockingkey 7 further comprises a second reset member 73, and the second reset member 73 is used for resetting the unlocking key 7 to the initial pressing position; in this way, after the unlocking key 7 drives thesecond end 42 to disengage from the lockingstructure 6, the unlockingkey 7 can be automatically reset to its initial position under the reset action of the second reset member 73, without the user having to manually lift the unlockingkey 7. In this embodiment, the second restoring member 73 may be flexibly designed according to practical use, and simply, a third supportingplate 13 is further disposed in the lid and fixed between the lid and the inner lid, the first triggering portion 71 movably penetrates through the third supportingplate 13, the second restoring member 73 is a compression spring sleeved on the first triggering portion 71, and two ends of the second restoring member 73 elastically abut against the lower surface of the first pressing portion 72 and the upper surface of the third supportingplate 13, respectively.
With continued reference to fig. 1, further, the first trigger portion 71 is disposed beside thesecond end 42; thesecond end 42 is provided with afirst wedge block 422 on a side facing the first trigger portion 71, and the inclined surface of thefirst wedge block 422 is located on the upper surface of thefirst wedge block 422 and is inclined downward in the direction from thesecond end 42 to the first trigger portion 71, and it can be understood that the second driving inclinedsurface 40 is the inclined surface of thefirst wedge block 422; thus, pressing the first pressing portion 72 downward can cause the first triggering portion 71 to press the inclined surface of thefirst wedge 422 through the first driving inclinedsurface 74, so as to drive thesecond end 42 to rotate horizontally. It will be appreciated that in this embodiment, the unlockingkey 7 and the pressure regulating key 5 are located on the same side of thesecond end 42, and of course, thefirst wedge 422 and thethird wedge 421 are also located on the same side of thesecond end 42, otherwise, the pressing of the first driving inclinedsurface 74 on the second driving inclinedsurface 40 cannot achieve the horizontal rotation of thesecond end 42.
Referring to fig. 4, fig. 4 is a schematic structural view of a pressure-regulating reset structure of a pot cover assembly according to another embodiment of the present invention. The difference between this embodiment and the previous embodiment is that thefirst reset element 3 is disposed below the pivot position of the linkage element 4, and the first position is located above the second position. Thepressure regulating key 5 is provided above the link 4 and has a movable stroke in the up-down direction. The secondmagnetic attraction member 2 is fixedly arranged at thefirst end 41. Thus, pressing the pressure regulating key 5 downwards can make the linkage member 4 press downwards, and drive the secondmagnetic attraction member 2 to move downwards from the first position to the second position through thefirst end 41, and thefirst reset member 3 can indirectly make the secondmagnetic attraction member 2 have a tendency to reset to the first position by making the linkage member 4 have a tendency to reset upwards.
Referring to fig. 5 and 6 together, in this embodiment, further, the lockingstructure 6 is formed at an inner end of a self-locking slider 8 of the lid, and the self-locking slider 8 is elastically movably mounted to the lid so as to be capable of telescoping toward a center of the lid. Specifically, the inner end of the self-locking slider 8 is provided with a slider inclinedsurface 81, and the slider inclinedsurface 81 faces upward and is obliquely arranged downward in the inner extending direction of the self-locking slider 8; the lockingstructure 6 is the lower surface of the inner end of the self-locking sliding block 8. Thepressing key 5 is pressed downwards to enable the linkage piece 4 to be pressed downwards, and the sliding block inclinedsurface 81 is pressed by the free end of thefirst end 41 to force the self-locking sliding block 8 to move outwards when the secondmagnetic attraction piece 2 moves downwards from the first position to the second position, the lower surface of the inner end of the self-locking sliding block 8 just exceeds the upper surface of the free end of thefirst end 41, at the moment, the self-locking sliding block 8 rebounds under the action of the reset piece, so that the lower surface of the inner end of the self-locking sliding block 8 is overlapped on the upper surface of the free end of thefirst end 41, thefirst end 41 is locked, and the secondmagnetic attraction piece 2 is limited at the second position.
Referring also to fig. 7, in the present embodiment, the unlockingkey 7 has substantially the same structure as that of the previous embodiment, but the first trigger portion 71 is disposed above thesecond end 42, and the first driving inclined surface is not disposed at the lower end of the first trigger portion 71; the upper surface of thesecond end 42 is provided with a drivinggroove 420 corresponding to the first triggering portion 71, and the second driving inclinedsurface 40 is disposed on an inner side wall of the drivinggroove 420. Thus, the first pressing portion 72 is pressed downward, so that the lower end of the first triggering portion 71 directly presses the second driving inclinedsurface 40 in thedriving slot 420, and drives thesecond end 42 to rotate horizontally, so that thefirst end 41 is separated from the lockingstructure 6, and the secondmagnetic attraction piece 2 can be reset to the first position under the action of thefirst reset piece 3.
It should be noted that, in this embodiment, in order to make the secondmagnetic attraction member 2 move down to the second position each time, the self-locking slider 8 can lock the free end of thefirst end 41, and thefirst reset member 3 preferably has a torsion spring function while having an elastic compression function, so that after unlocking, the free end of thefirst end 41 can be automatically reset to a position directly above the self-locking slider 8. In this embodiment, the first restoringmember 3 may be a combination of a compression spring and a torsion spring. Specifically, in this embodiment, a sliding guide groove (not shown) extending in the up-down direction is formed below the linkage member 4 on the pot cover; preferably, referring to fig. 7, twoguide groove plates 17 are fixedly provided in the pot cover, and the sliding guide groove is formed between the twoguide groove plates 17. In this embodiment, a slidingplate 18 is disposed in the sliding guide groove, and the slidingplate 18 is slidably connected to the sliding guide groove so as to be slidable in an up-down direction; of course, theslide plate 18 is non-rotatable. The linkage member 4 is fixedly provided with a downward extendingpivot shaft 15, and the lower end of thepivot shaft 15 is rotatably fixed on the slidingplate 18. In this embodiment, the first restoringmember 3 includes a restoringcompression spring 31 provided below theslide plate 18 and a restoringtorsion spring 32 provided above theslide plate 18. Thereset torsion spring 32 includes atorsion spring body 321 sleeved on thepivot shaft 15, and anupper extension end 322 and alower extension end 323 respectively disposed at two ends of thetorsion spring body 321. In this embodiment, theupper extension end 322 is fixedly connected to thepivot shaft 15; of course, in other embodiments, theupper extension end 322 may be fixedly connected to the linkage member 4; thelower extension 323 is fixedly coupled to the slidingplate 18. In this embodiment, thereset spring 31 provides an upward reset function for the linkage member 4, and thereset torsion spring 32 provides a rotational reset function for the linkage member 4. It should be emphasized that in other embodiments, the first restoringmember 3 may also be simply provided as a compression torsion spring.
The invention also provides a pressure cooker, which comprises a cooker cover assembly, wherein the specific structure of the cooker cover assembly refers to the embodiment, and as the pressure cooker adopts all the technical schemes of all the embodiments, the pressure cooker has at least all the beneficial effects brought by the technical schemes of the embodiments, and the detailed description is omitted.
The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.