CN211324340U

CN211324340U - Lid and cooking utensil

Info

Publication number: CN211324340U
Application number: CN201921996936.9U
Authority: CN
Inventors: 李振合; 夏鹏; 陈亮; 陈伟; 陈礼昌; 王俊; 程志斌
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-08-25
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a cooking utensil and lid, the lid includes: an upper cover; the driving assembly and the locking mechanism are arranged on the upper cover, and the locking mechanism comprises a lock catch; the lock catch is switched between a buckling state of buckling with the fixing buckle of the pot body and a separating state of separating from the fixing buckle 211 under the action of the driving component. Above-mentioned lid is located cooking utensil's pot body on, when cooking utensil during operation, the pressure in the culinary art space increases gradually, and the lid receives pressure shock to have the motion trend of opening, accessible locking mechanism locking lid and pot body, prevents that the lid from opening unusually. That is to say, the locking mechanism provides secondary locking, when the cover closing assembly on the pot body fails under pressure impact, the cover body can be prevented from being abnormally opened through the locking mechanism, and operators are prevented from being burnt by high-pressure gas.

Description

Lid and cooking utensil

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to lid and cooking utensil.

Background

Cooking appliances are used for processing food, and include electric cookers, pressure cookers, and the like. Generally, a cooking appliance includes a pot body and a cover body, and the cover body is openably and closably disposed with respect to the pot body. When the cover body is arranged on the pot body, a cooking space is formed between the cover body and the pot body, and when the cooking appliance works, the pressure in the cooking space is increased, so that the cover body can be opened abnormally.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a cover that prevents abnormal opening.

A cover, comprising:

an upper cover;

the driving assembly and the locking mechanism are arranged on the upper cover, and the locking mechanism comprises a lock catch;

the locking buckle is switched between a buckling state of buckling with a fixing buckle of the pot body and a separating state of separating from the fixing buckle under the action of the driving assembly.

Above-mentioned lid is located cooking utensil's pot body on, when cooking utensil during operation, the pressure in the culinary art space increases gradually, and the lid receives pressure shock to have the motion trend of opening, accessible locking mechanism locking lid and pot body, prevents that the lid from opening unusually. That is to say, the locking mechanism provides secondary locking, when the cover closing assembly on the pot body fails under pressure impact, the cover body can be prevented from being abnormally opened through the locking mechanism, and operators are prevented from being burnt by high-pressure gas.

In one embodiment, the driving assembly includes a driving member and a transmission member disposed between the driving member and the latch, the transmission member moves linearly along a first direction under the action of the driving member, and the latch is driven by the transmission member to switch between the engaged state and the disengaged state along a second direction intersecting the first direction.

In one embodiment, a boss is convexly arranged on one side of the transmission piece facing the lock catch along the second direction, and a matching part is arranged on one side of the lock catch facing the transmission piece;

when the lock catch is in the separation state, the boss moves along the first direction to abut against the matching part, and pushes the matching part and the lock catch to move along the second direction to be separated from the fixed buckle;

when the lock catch is in a buckling state, the boss moves to be separated from the matching part along the first direction, and the matching part and the lock catch are allowed to move to be buckled with the fixed lock catch along the second direction.

In one embodiment, the lock catch is at least partially stacked on the transmission member, the boss is convexly disposed on a surface of the transmission member facing the lock catch, and the matching portion capable of abutting against the boss along the second direction is convexly disposed on a surface of the lock catch facing the transmission member.

In one embodiment, the locking mechanism further includes a guide rail and an elastic member, the guide rail extends along the second direction, the lock catch is slidably sleeved on the guide rail, the elastic member abuts against between the lock catch and the guide rail, and when the lock catch is in the separated state, elastic potential energy for driving the lock catch to switch to the locking position is stored.

In one embodiment, the lock catch has a sliding groove, the guide rail has a guide portion protruding from the sliding groove, the lock catch slides along the guide portion in a second direction through the sliding groove, and the elastic member abuts against between the guide portion and an inner wall of the sliding groove in the second direction.

In one embodiment, the transmission member is provided with a driving rack extending along the first direction, and the output end of the driving member is provided with a driving gear in meshing transmission with the driving rack.

In one embodiment, the pressure regulating device is connected with the transmission element and moves synchronously, and the pressure valve is switched between a pressure relief state for opening the air outlet on the cover body and a pressure accumulation state for closing the air outlet under the action of the pressure regulating device.

In one embodiment, when the pressure regulating part drives the pressure valve to be in the pressure accumulation state under the action of the driving part, the lock catch is in the buckling state under the action of the driving part; the pressure regulating part drives the pressure valve to be in the pressure relief state under the action of the driving part, and the lock catch is in the separation state under the action of the transmission part.

In one embodiment, the power-off cap opening mechanism comprises a standby driving part and a standby transmission part, the standby transmission part is sleeved on the driving part output shaft, and the standby driving part is in transmission connection with the standby transmission part and is matched with the cap opening tool to transmit the rotation motion output by the cap opening tool to the standby transmission part.

The utility model also provides a cooking utensil, a serial communication port, including above-mentioned lid.

Drawings

Fig. 1 is a schematic structural view of a cooking appliance in one state according to an embodiment of the present invention;

FIG. 2 is a schematic view of the cooking appliance of FIG. 1 in another state;

FIG. 3 is a schematic cross-sectional view of the cooking appliance of FIG. 1 in one direction;

FIG. 4 is a schematic structural view of the cooking appliance of FIG. 1 in a further state;

FIG. 5 is a schematic cross-sectional view of the cooking appliance of FIG. 4 in one direction;

FIG. 6 is a schematic partial cross-sectional view of the cooking appliance of FIG. 1;

FIG. 7 is a schematic view of the transmission and pressure regulating member of the cooking appliance of FIG. 1;

FIG. 8 is a schematic view of a latch of the cooking appliance of FIG. 1;

FIG. 9 is a schematic structural view of a guide rail in the cooking appliance shown in FIG. 1;

FIG. 10 is a schematic cross-sectional view of the cooking appliance of FIG. 2;

FIG. 11 is a schematic cross-sectional view of the cooking appliance of FIG. 4 in one direction;

FIG. 12 is a schematic cross-sectional view of the cooking appliance of FIG. 4 in another orientation;

FIG. 13 is a schematic cross-sectional view of the cooking appliance of FIG. 4 in a further orientation;

FIG. 14 is a schematic cross-sectional view of the cooking appliance of FIG. 1 in another orientation;

FIG. 15 is an enlarged partial schematic view of the cooking appliance of FIG. 14;

FIG. 16 is a schematic structural view of a linkage in the cooking appliance of FIG. 1;

FIG. 17 is a partial schematic structural view of the cooking appliance of FIG. 2;

FIG. 18 is a structural view of the cooking appliance of FIG. 1 in another orientation;

FIG. 19 is a schematic partial cross-sectional view of the cooking appliance of FIG. 18;

fig. 20 is a schematic structural view of a lid opening tool coupled to the cooking appliance of fig. 18.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 3, an embodiment of the present invention provides a cooking apparatus 200, which includes a pot body 210, an inner pot 220 sleeved in the pot body 210, and a cover 100.

The cover body 100 comprises an upper cover 10 and a heat-insulating cover plate 20 detachably arranged on the upper cover 10, and the upper cover 10 and the pot body 210 can be opened and closed to open or close the pot body 210. When the upper cover 10 is closed, the heat-insulating cover plate 20 can be covered on the inner pot 220 and form a cooking space with the inner pot 220, so as to process food materials by using the cooking space. Moreover, the pot body 210 is provided with a cover opening button (not shown) and a cover closing assembly (not shown), the cover closing assembly is used for buckling the cover body 100 and the pot body 210, and the cover opening button is used for driving the cover closing assembly to be separated from the cover body 100, so as to allow the cover body 100 to be opened.

As shown in fig. 1-5, the cover 100 further includes a driving assembly 30 and a locking mechanism 50 both disposed on the upper cover 10, the locking mechanism 50 includes a latch 52, and the latch 52 is switched between a fastening state of being fastened with the fixing buckle 211 of the pot 210 and a separating state of being separated from the fixing buckle 211 under the action of the driving assembly 30. When the cooking utensil 200 works, the pressure in the cooking space is gradually increased, the cover body 100 has a tendency of opening when being impacted by the pressure, and the cover body 100 and the pot body 210 can be locked by the locking mechanism 50 to prevent the pot body 210 from being opened abnormally. That is, the locking mechanism 50 provides a secondary locking, and when the cover closing assembly on the pot body 210 fails under pressure impact, the locking mechanism 50 can prevent the cover body 100 from being abnormally opened, thereby preventing an operator from being burnt by high-pressure gas.

Optionally, the lock catch 52 is in transmission with the driving assembly 30, and a hook 51 is disposed on the lock catch 52, and the hook 51 can be selectively fastened to or separated from the fixing plate 211 of the pot 210, so that the lock catch 52 is correspondingly in a fastened state or a separated state.

The driving assembly 30 includes a driving member 32 and a transmission member 34 disposed between the driving member 32 and the latch 52, the transmission member 34 moves linearly and reciprocally along a first direction under the action of the driving member 32, and the latch 52 is driven by the transmission member 34 to switch between a locking state and a releasing state along a second direction intersecting the first direction. In this way, the driving member 34 moving in the first direction drives the lock catch 52 to move in the second direction, so as to switch the working state of the lock catch 52. Meanwhile, when the transmission member 34 moves along the first direction, the other components can be driven to move along the first direction. That is, after the driving member 32 drives the driving member 34 to move along the first direction, the driving member 34 can drive the latch 52 to move along the second direction, the driving member 34 can also drive other components (such as the clamping mechanism 70 and the pressure adjusting member 38) to move along the first direction, and a plurality of components are driven by the same driving member 32, so as to save the driving source.

In some embodiments, the transmission member 34 is provided with a driving rack 35 extending along the first direction, and the output end of the driving member 32 is provided with a driving gear 321 engaged with the driving rack 35. When the output end of the driving member 32 drives the driving gear 321 to rotate, the driving rack 35 engaged with the driving gear 321 slides along the extending direction of the driving rack 35, and further drives the transmission member 34 to slide along the first direction.

As shown in fig. 3 and fig. 6 to 8, specifically, a boss 341 is convexly provided along the second direction on a side of the transmission member 34 facing the lock catch 52, and an engaging portion 522 is provided on a side of the lock catch 52 facing the transmission member 34; when the latch 52 is in the separated state, the boss 341 moves along the first direction to abut against the engaging portion 522, and pushes the engaging portion 522 and the latch 52 to move along the second direction to disengage from the fixing buckle 211; when the latch 52 is in the engaging state, the boss 341 moves in the second direction to be separated from the engaging portion 522, allowing the engaging portion 522 and the latch 52 to move in the second direction to engage with the fixing buckle 211. Equivalently, the transmission piece 34 is provided with a boss 341 protruding along the second direction, the lock catch 52 is provided with a matching part 522 located on the moving path of the boss 341, when the boss 341 slides to abut against the matching part 522, the matching part 522 and the lock catch 52 are pushed to move along the second direction, so that the lock catch 52 moves away from the transmission piece 34 along the second direction, and further moves away from the fixing buckle 211 in the pot body 210 to be separated from the fixing buckle 211; when the protruding platform 341 continues to move, the protruding platform 341 will move to disengage from the engaging portion 522, the pushing force of the protruding platform 341 on the lock latch 52 in the second direction away from the driving member 34 disappears, and the lock latch 52 can return to the locked state with the fixing latch 211, so as to lock the lid 100 and the pot 210.

Further, the lock catch 52 is at least partially stacked on the transmission member 34, a protruding portion 341 is convexly disposed on a surface of the transmission member 34 facing the lock catch 52, a mating portion 522 capable of abutting against the protruding portion 341 in the second direction is convexly disposed on a surface of the lock catch 52 facing the transmission member 34, and when the bottom of the lock catch 52 moves in the first direction, the protruding portion 341 on the transmission member 34 abuts against the mating portion 522 on the bottom of the lock catch 52 in the second direction, so as to push the lock catch 52 to move in the second direction.

As shown in fig. 1-4, the locking mechanism 50 further includes a guide rail 54 and an elastic member 56, the guide rail 54 is disposed to extend along the second direction, the latch 52 is slidably sleeved on the guide rail 54, the elastic member 56 abuts between the latch 52 and the guide rail 54, and when the latch 52 is in the separated state, the elastic potential energy for driving the latch 52 to switch to the locking position is stored. When the protrusion on the transmission member 34 abuts against the engaging portion 522 on the lock catch 52, the lock catch 52 is pushed by the protrusion on the transmission member 34 to move away from the transmission member 34 in the second direction, so as to press the elastic member 56 between the lock catch 52 and the guide rail 54, and the elastic member 56 stores elastic potential energy; when the protrusion of the driving member 34 is disengaged from the engaging portion 522 of the lock catch 52, the lock catch 52 is no longer pushed by the driving member 34 along the second direction, and the lock catch 52 is driven by the elastic potential energy stored in the elastic member 56 to move toward the driving member 34, and then move toward the fixing catch 211 in the pot 210 to be engaged with the fixing catch 211, and return to the engaged state.

Specifically, the latch 52 is provided with a sliding slot 521 (as shown in fig. 2), the guide rail 54 is provided with a guide portion 541 (as shown in fig. 2 and 9) protruding from the sliding slot 521, the latch 52 slides along the guide portion 541 in the second direction through the sliding slot 521, and the elastic element 56 abuts between the guide portion 541 and the inner wall of the sliding slot 521 in the second direction. After the sliding slot 521 is opened on the latch 52, the guiding portion 541 of the guide rail 54 can extend into the sliding slot 521, the elastic element 56 can be assembled between the inner wall of the sliding slot 521 and the guiding portion 541, and the latch 52 can be reset through the elastic element 56.

As shown in fig. 1 and fig. 10 to 12, the cooking appliance 200 further includes a clamping mechanism 70 disposed on the upper lid 10, and the clamping mechanism 70 is switched between a closed state for clamping the inner pot 220 and the thermal cover plate 20 and an open state for allowing the thermal cover plate 20 to be separated from the inner pot 220 under the action of the driving assembly 30. When the cooking utensil 200 works, the pressure in the cooking space rises, the air pressure borne by the heat-insulating cover plate 20 is large, the heat-insulating cover plate 20 and the inner pot 220 are locked by the clamping mechanism 70, and the cover body 100 is prevented from being opened abnormally under the action of high pressure.

The clamping mechanism 70 comprises a first clamping jaw 72 and a second clamping jaw 74 which move towards the direction of approaching to and departing from each other, the first clamping jaw 72 and the second clamping jaw 74 move towards the direction of approaching to each other and both clamp the heat-insulating cover plate 20 and the inner pot 220, or the first clamping jaw 72 and the second clamping jaw 74 move towards the direction of departing from each other and both separate from the heat-insulating cover plate 20 and the inner pot 220. The first jaw 72 and the second jaw 74 are oppositely arranged on the upper cover 10, when the first jaw 72 and the second jaw 74 move towards the direction of mutual approaching, the first jaw 72 and the second jaw 74 respectively approach the edge of the heat-insulating cover plate 20 and the inner pot 220, and the heat-insulating cover plate 20 and the inner pot 220 can be clamped; when the first jaw 72 and the second jaw 74 move in a direction away from each other, the first jaw 72 and the second jaw 74 move away from the insulating cover plate 20 and the edge of the inner pot 220, respectively, allowing the insulating cover plate 20 to be separated from the inner pot 220.

In one embodiment, the first jaw 72 and the second jaw 74 are disposed along a first direction, and the driving member 34 moves the first jaw 72 and the second jaw 74 toward or away from each other when moving linearly and reciprocally along the first direction under the driving member 32.

As shown in fig. 2 and 14-15, further, the driving assembly 30 further includes a linkage member 36, the driving member 34 is disposed between the driving member 32 and the linkage member 36, and the first and

second pawls

72 and 74 are drivingly connected to the driving member 34 and the linkage member 36, respectively; the driving member 32 is driven by the driving member 34 to reciprocate, and the link member 36 is driven to reciprocate in a direction opposite to the moving direction of the driving member 34. When the driving member 32 drives the transmission member 34 to move in the first direction, the moving transmission member 34 can simultaneously drive the link member 36 to move in the direction opposite to the moving direction of the transmission member 34.

For example, in the view of FIG. 15, when the transmission member 34 moves to the left, the linkage member 36 is moved to the right; meanwhile, when the first jaw 72 is driven by the transmission member 34 to move leftwards, the second jaw 74 is driven by the linkage member 36 to move rightwards, and both move away from each other and are separated from the inner pot 220 and the heat-insulating cover plate 20. When the transmission piece 34 moves rightwards, the linkage piece 36 is driven to move leftwards; meanwhile, when the first jaw 72 is driven by the transmission member 34 to move rightwards, the second jaw 74 is driven by the linkage member 36 to move leftwards, and both move towards the direction of approaching each other, and both clamp the inner pot 220 and the heat preservation cover plate 20.

The driving assembly 30 further includes a linking gear 37, the transmission member 34 and the linking member 36 are stacked, the linking gear 37 is disposed between the transmission member 34 and the linking member 36, and a first rack 343 (shown in fig. 7) and a second rack 361 (shown in fig. 9) which are engaged with the linking gear 37 are respectively disposed on two mutually facing surfaces of the transmission member 34 and the linking member 36, which correspond to the first rack 343 engaged with one side of the linking gear 37, and the second rack 361 engaged with the other side of the linking gear 37 opposite to the first rack 343. Also, the first and

second racks

343 and 361 extend in the same direction, that is, the first and

second racks

343 and 361 extend in the first direction. When the transmission member 34 moves away from the second jaw 74 in the first direction, the first rack 343 also moves away from the second jaw 74, and drives the linking gear 37 to rotate, so that the linking gear 37 drives the second rack 361 and the link member 36 to move in a direction opposite to the moving direction of the transmission member 34, i.e., drives the link member 36 to move away from the first jaw 72, and thus drives the first jaw 72 and the second jaw 74 to move away from each other. Similarly, when the driving member 34 moves in the first direction to approach the second jaw 74, the driving gear 37 drives the link member 36 to move in the direction to approach the first jaw 72, so as to drive the first jaw 72 and the second jaw 74 to approach each other.

As shown in fig. 1-5, in some embodiments, the latch 52 is actuated by the actuator 30 to switch between a locked state, in which the clamping mechanism 70 is maintained in the closed position, and an unlocked state, in which the clamping mechanism 70 is allowed to switch to the open position. When the clamping mechanism 70 is in the cover closing state, the lock catch 52 locks the clamping mechanism 70; when the gripper mechanism 70 needs to be switched to the open-lid state, the latch 52 allows the gripper mechanism 70 to move, allowing the open-lid operation to be performed.

Specifically, when the latch 52 is in the locked state, the first latch 72 and the second latch 74 are locked, and the first latch 72 and the second latch 74 are prevented from moving away from each other, so that the clamping mechanism 70 is maintained in the box cover state; when the latch 52 is in the unlocked state, the first pawl 72 and the second pawl 74 are unlocked, the first pawl 72 and the second pawl 74 are allowed to move in directions away from each other, and the gripper mechanism 70 is allowed to switch to the open state to perform the open operation.

Further, the first and

second claws

72 and 74 are provided with a first locking portion 721 and a second locking portion 741 on opposite sides thereof, respectively, and the latch 52 is provided with a locking groove 53. When the clamping mechanism 70 is in the cover closing state, the first claw 72 and the second claw 74 move in the direction of approaching each other, and drive the first locking portion 721 and the second locking portion 741 to approach each other, and the first locking portion 721 and the second locking portion 741 are both embedded in the slot 53 and are respectively in limit abutment with two inner walls of the slot 53 opposite to each other in the first direction, the first locking portion 721 and the second locking portion 741 are locked in the slot 53, so that the first locking portion 721 and the second locking portion 741 are prevented from moving in the direction of separating from each other, the cover closing state of the clamping mechanism 70 is locked, and the clamping mechanism 70 is prevented from being abnormally switched to the cover opening state under the action of high pressure in the pot. When the gripper mechanism 70 is in the open-lid state, the engaging groove 53 is disengaged from the first locking portion 721 and the second locking portion 741, allowing the first locking portion 721 and the second locking portion 741 to move in a direction away from each other, and further allowing the first claw 72 and the second claw 74 to move away from each other, so as to perform an open-lid operation.

Further, the first and

second pawls

72, 74 are stacked on the transmission member 34 and the linkage member 36, respectively, the transmission member 34 is in transmission connection with the driving member 32, one end of the lock catch 52 close to the driving member 32 in the second direction is provided with a locking slot 53, and the locking slot 53 is opened toward the first locking portion 721 and the second locking portion 741 in the cover closing state. Alternatively, when the clamping mechanism 70 is in the cover closing state, the first locking part 721 and the second locking part 741 are abutted, the width of the card slot 53 is equal to the total width of the first locking part 721 and the second locking part 741 in the first direction, and the first locking part 721 and the second locking part 741 in the first direction can be embedded in the card slot 53 in a limiting manner.

The locking mechanism 52 is switched between the locking state and the unlocking state in the same manner as the locking mechanism 52 is switched between the engaging state and the disengaging state.

When the driving member 34 is driven by the driving member 32 to move linearly in a reciprocating manner in the first direction, the lock catch 52 is driven by the driving member 34 to switch between the locked state and the unlocked state in a second direction intersecting the first direction, and the transmission manner between the lock catch 52 and the driving member 34 is the same as that described above, and the lock catch 52 is moved in the second direction by abutting and separating the boss 341 protruding in the second direction provided on the driving member 34 and the engaging portion 522 provided on the lock catch 52 to switch the engaging state with the clamping mechanism 70, thereby switching the lock catch 52 between the locked state and the unlocked state.

Specifically, when the latch 52 is in the locked state, the boss 341 moves in the first direction to be separated from the fitting portion 522, allowing the latch 52 to move in the second direction toward the clamping mechanism 70 to lock the clamping mechanism 70; when the latch 52 is in the unlocked state, the boss 341 moves along the first direction to abut against the engaging portion 522, and pushes the latch 52 to move away from the clamping mechanism 70 along the second direction, so as to unlock the clamping mechanism 70.

It should be noted that the lock catch 52 can have a fastening state of fastening with the fixing buckle 211 in the pot body 210 and a separation state of separating from the fixing buckle 211, and can lock the cover body 100 and the pot body 210. The lock catch 52 may have a locked state for locking the gripper mechanism 70 in the cover closing state and an unlocked state for allowing the gripper mechanism 70 to switch to the cover opening state, and the gripper mechanism 70 in the cover closing state may be locked by the lock catch 52 to prevent the cover from being opened by mistake. The lock catch 52 can have a buckling state and a locking state at the same time, and a separating state and an unlocking state at the same time, namely, the lock catch 52 is buckled with the fixing buckle 211 to lock the cover body 100 and the pot body 210, and meanwhile, the lock catch 52 also clamps the clamping mechanism 70 to enable the clamping mechanism 70 to be locked in the cover closing state, so that the clamping mechanism 70 is prevented from being abnormally switched to the cover opening state, and the cover body 100 is prevented from being abnormally opened, so that multiple cover locking is realized, and the reliability of the cooking utensil 200 during high-pressure work is ensured; similarly, the lock 52 releases the lock of the gripper 70, allowing the gripper 70 to switch to the open state, while the lock 52 is also separated from the fixing lock 211, allowing the cover 100 to be opened.

In the embodiment, the lock catch 52 is in the locked state while in the fastened state, and the lock catch 52 is in the unlocked state while in the separated state, that is, the lock catch 52 is engaged with the clamping mechanism 70 and also engaged with the fixing catch 211 in the pot body 210.

Furthermore, two opposite ends of the latch 52 along the second direction are respectively provided with a hook 51 and a slot 53, and when the hook 51 is fastened with the fixing buckle 211, a first locking part 721 and a second locking part 741 are embedded in the slot 53, so that the latch 52 is fastened with the fixing buckle 211 and also locks the first claw 72 and the second claw 74; when the hook 51 is separated from the holder 211, the engaging groove 53 is separated from the first locking part 721 and the second locking part 741, so that the lock catch 52 is separated from the holder 211 as well as the first claw 72 and the second claw 74. Thus, the cover body 100 can be double locked after the lid is closed by one part of the locking buckle 52.

Specifically, in the embodiment, the lock catch 52 includes a first lock catch 521 and a second lock catch 523, the first lock catch 521 and the second lock catch 523 are distributed and fixedly connected along the second direction, one end of the first lock catch 521, which is far away from the second lock catch 523, is provided with a hook 51 fastened with the fixing plate 211 in the pot body 210, one end of the second lock catch 523, which is far away from the first lock catch 521, is provided with a slot 53 having an opening facing away from the first lock catch 521, and the first lock catch 521 is provided with a sliding slot 521 allowing the guide portion 541 of the guide rail 54 to extend into. It is understood that the first latch 521 and the second latch 523 may also be integrally disposed, and are not limited herein.

As shown in fig. 1 and fig. 3, specifically, when the protrusion 341 of the transmission member 34 moves to abut against the engaging portion 522 of the latch, the latch 52 is separated from the fixing latch 211 under the pushing of the protrusion 341, and the clamping mechanism 70 is switched to the open state, so as to release the locking between the heat-insulating cover 30 and the inner pot 220, and allow the cover 100 to be opened with respect to the pot 210. As shown in fig. 2 and fig. 4-5, when the protrusion 341 of the transmission member moves to be separated from the engaging portion 522 of the latch, the latch 52 moves to move toward the fixing latch 211 under the action of the elastic member 56, and simultaneously the first and

second pawls

72 and 74 move toward each other until the first and

second pawls

72 and 74 move to the proper positions, the locking slot 53 on the latch 52 can be aligned with the first and

second locking portions

721 and 741 respectively disposed on the first and

second pawls

72 and 74, the latch 52 continues to move to the embedded first and

second locking portions

721 and 741 in the locking slot 53 under the action of the elastic member 56, and the hook 51 of the latch 52 is engaged with the fixing plate 211, thereby completing the cover closing process.

Optionally, the width of the latch 52 in the first direction is greater than the maximum separation of the first jaw 72 and the second jaw 74 in the first direction. When the first jaw 72 and the second jaw 74 gradually move toward the direction of approaching each other, the latch 52 moves toward the direction of approaching the first jaw 72 and the second jaw 74, and because the width of the latch 52 is large, the latch 52 can abut against the first jaw 72 and the second jaw 74 at intervals, so that the excessive movement of the latch 52 is prevented, until the slot 53 of the latch 52 corresponds to the first locking portion 721 and the second locking portion 741 when the first jaw 72 and the second jaw 74 move to the proper position, the latch 52 can be allowed to continue to move to the slot 53 to embed the first locking portion and the second locking portion, and the cover closing operation of the clamping mechanism 70 and the latch operation of the latch 52 are completed.

In some embodiments, a floating gap is reserved between the thermal cover plate 20 and the upper cover 10 to allow the thermal cover plate 20 to float, and the clamping mechanism 70 in the closed state can float relative to the upper cover 10 under the pushing of the thermal cover plate 20. When the cooking appliance 200 works, the driving assembly 30 drives the clamping mechanism 70 to switch from an open state to a close state, the heat preservation cover plate 20 clamped by the clamping mechanism 70 floats in the floating gap under the action of high pressure in the pot, and meanwhile, the clamping mechanism 70 is pushed to float, so that the floating of the heat preservation cover plate 20 is transferred to the clamping mechanism 70, the upper cover 10 cannot be extruded when the heat preservation cover plate 20 floats, and the upper cover 10 is prevented from being extruded by the heat preservation cover plate 20 to deform.

Moreover, the latch 52 and the thermal insulation cover plate 20 float synchronously, and when the clamping mechanism 70 floats upwards under the pushing of the thermal insulation cover plate 20, the latch 52 also floats synchronously, so that the latch 52 and the clamping mechanism 70 float synchronously and are matched with each other all the time, the clamping mechanism 70 is prevented from being dislocated with the latch 52 after floating upwards, and the latch 52 has a locking function on the floating clamping mechanism 70 all the time.

As shown in fig. 13, the cover 100 further includes a floating plate 60 and a push rod 62, the floating plate 60 is disposed between the upper cover 10 and the latch 52, the upper cover 10 is disposed between the insulating cover plate 20 and the floating plate 60, and the push rod 62 penetrates the upper cover 10 and abuts between the insulating cover plate 20 and the floating plate 60. When the thermal insulation cover plate 20 floats upwards, the ejector rod 62 is pushed by the thermal insulation cover plate 20 and jacks up the floating plate 60, so that the floating plate 60 floats along with the floating of the thermal insulation cover plate 20, and the lock catch 52 arranged on the floating plate 60 synchronously floats with the thermal insulation cover plate 20 and the clamping mechanism 70.

Specifically, the upper cover 10 is provided with a through hole, the push rod 62 penetrates through the through hole, and one end of the push rod 62 close to the floating plate 60 is clamped on the upper cover 10, so that the push rod 62 can be assembled with the upper cover 10 in a floating manner. The floating plate 60 is provided with a pushing part 61 which is matched with the push rod 62, the pushing part 61 is provided with a matching groove on one surface facing the upper cover 10, one end of the push rod 62 close to the floating plate 60 is penetrated in the matching groove and can be abutted against the inner wall of the matching groove to push the floating plate 60 to float. Optionally, a plurality of sets of the push rods 62 and the push portions 61 are symmetrically arranged and respectively arranged around the floating plate 60 to push the floating plate 60 to float at a plurality of points, so that the floating amplitude of each position of the floating plate 60 is uniform.

Further, a guide rail 54 for guiding the locking bar 52 is fixed to the floating plate 60, the locking bar 52 is slidably fitted over the guide rail 54, and the guide rail 54 and the locking bar 52 are simultaneously floated.

As shown in fig. 2 and fig. 10 to 11, the cover 100 further includes a pressure valve 80, and the pressure valve 80 is switched between a pressure relief state for opening the vent on the cover 100 and a pressure accumulation state for closing the vent on the cover 100 by the driving unit 30. The pressure valve 80 is assembled on the cover body 100 and used for opening and closing the exhaust port, when the exhaust port is closed by the pressure valve 80, the pressure in the pot body 210 cannot be exhausted to the outside, the pressure in the pot body 210 is gradually increased, and the pressure is in a pressure accumulation state; when the air outlet is opened by the pressure valve 80, the pressure in the pot body 210 can be exhausted through the air outlet, and the pressure in the pot body 210 is gradually reduced to be in a pressure relief state. In this way, the driving assembly 30 can not only drive the clamping mechanism 70 and/or the latch 52 to operate, but also drive the pressure valve 80 to operate, thereby performing pressure regulation.

The following describes the operation of the driving assembly 30 to drive the clamping mechanism 70 and the pressure valve 80.

When the clamping mechanism 70 is in the closed state, the pressure valve 80 may be in a pressure accumulation state to pressurize the inside of the closed cooking utensil 200; that is, when the pressure inside the cooking utensil 200 increases, the clamping mechanism 70 clamps the heat-insulating cover plate 20 and the inner pot 220, and locks the lid body 100, thereby preventing the lid body 100 from being abnormally opened when the pressure inside the pot body 210 increases. Moreover, when the clamping mechanism 70 is in the uncovering state, the pressure valve 80 can be in the pressure relief state, so that the cover is opened after the pressure inside the pot body 210 is relieved, and the situation that the operator is burned due to the outflow of high-pressure airflow in the pot body 210 when the cover is opened is avoided.

The driving assembly 30 further includes a pressure adjusting member 38 connected to and synchronously moving with the driving member 34, and when the driving member 34 is driven by the driving member 32 to reciprocate, the driving member 36 is driven to reciprocate in a direction opposite to the moving direction of the driving member 34, and the first jaw 72 and the second jaw 74 are driven to move toward and away from each other, so that the clamping mechanism 70 is switched between the lid opening state and the lid opening state. The pressure adjusting member 38 connected to the actuator 34 also reciprocates, and can drive the pressure valve 80 to switch between a pressure accumulation state and a pressure release state, thereby performing a pressure adjusting operation.

In particular, in the embodiment, the valve rod of the pressure regulating valve 80 moves asynchronously with the clamping mechanism 70 under the driving of the driving assembly 50. When the valve rod of the pressure regulating valve 80 moves under the action of the pressure regulating piece 58, the pressure in the pot body 210 changes, and the pressure regulating work is carried out; when the gripping mechanism 70 is moved by the driving member 54 and the link member 56, the gripping mechanism 70 is switched between the lid open state and the lid open state. The pressure regulating part 58 is connected with the transmission part 54 and moves synchronously, the linkage part 56 moves in the opposite direction with the transmission part 54 under the driving of the transmission part 54, the valve rod of the pressure valve 80 is driven to intermittently lift in the moving process of the pressure regulating part 58, the clamping mechanism 70 is driven to intermittently open and close in the moving process of the transmission part 54 and the linkage part 56, the time period of the opening and closing action of the clamping mechanism 70 is staggered with the time period of the lifting and closing of the valve rod in the pressure valve 80, the asynchronous movement of the clamping mechanism 70 and the valve rod is realized, the mutual influence of the pressure regulating work and the cover opening and closing work is prevented, the driving component 50 is prevented from driving the clamping mechanism 70 to be switched to the cover opening state while the.

The pressure regulating member 38 includes an inclined surface 381 and a horizontal surface 383 which are distributed along the moving direction thereof; when the inclined surface 381 is matched and abutted with the valve rod of the pressure valve 80, the clamping mechanism 70 keeps static, only pressure regulation work is carried out at the moment, cover opening and closing switching work is not carried out, and safety problems caused by sudden cover opening when the pressure in the cooker is changed are prevented; when the horizontal plane 383 is in fit abutment with the valve rod of the pressure valve 80, the valve rod can be kept still without pressure in the gravity direction of the valve rod, the pressure in the cooker cannot change suddenly, the clamping mechanism 70 switches the working state at the moment, and the clamping mechanism 70 cannot be impacted by sudden pressure change in the switching process, so that the pressure-changing type pressure-changing pressure.

As shown in fig. 16 to 17, in particular, the transmission member 34 includes a first linkage portion 33 provided on the pressure regulating member 38, and the linkage member 36 has a second linkage portion 362; the first jaw 72 and the second jaw 74 are respectively opened with a first chute 722 and a second chute 742, and the first linkage portion 33 and the second linkage portion 362 are respectively slidably disposed in the first chute 722 and the second chute 742. When the first linkage part 33 and the second linkage part 362 slide in the first chute 722 and the second chute 742 respectively, the pressure regulating member 38 and the transmission member 34 move synchronously and perform pressure regulating operation, but the first linkage part 33 and the second linkage part 362 do not perform transmission with the first jaw 72 and the second jaw 74 respectively, the first jaw 72 and the second jaw 74 are kept static, and only when the first linkage part 33 and the second linkage part 362 respectively abut against the inner walls of the first chute 722 and the second chute 742 in the first direction, the first jaw 72 and the second jaw 74 are driven to move, so that the pressure regulating member 38 can perform pressure regulating operation in a period of time when the clamping mechanism 70 is kept static, asynchronous operation of pressure regulating and cover opening and closing operations is realized, and the safety performance of the cooking appliance 200 is improved.

Optionally, the first and

second chutes

722 and 742 have the same length in the moving direction (the first direction) of the driving member, so that the first and

second claws

72 and 74 can move simultaneously to lock or separate the thermal cover 20 and the inner pot 220. In addition, the lengths of the first chute 722 and the second chute 742 in the first direction are both greater than or equal to the lengths of the inclined sections in the first direction, so that when the inclined section of the pressure regulating member 38 is engaged with the pressure valve 80, the first linkage member 36 and the second linkage member 36 can slide in the first chute 722 and the second chute 742, respectively, and the first claw 72 and the second claw 74 are not driven to move, so that pressure regulation can be performed when the clamping mechanism 70 is in a cover closing state.

The process of the driving assembly 30 driving the latch 52 and the pressure valve 80 will be described.

When the pressure regulating member 38 drives the pressure valve 80 to be in the pressure accumulation state under the action of the driving member 32, the lock catch 52 is in the buckling state under the action of the transmission member 34, so that the pressure accumulation operation is performed only when the cover body 100 is buckled with the pot body 210, thereby preventing the safety problem; when the pressure regulating member 38 drives the pressure valve 80 to be in the pressure relief state under the action of the driving member 32, the lock catch 52 is in the separation state under the action of the transmission member 34, so that the cover body 100 is allowed to be separated from the pot body 210 after pressure relief, and direct uncovering is prevented when pressure is not relieved.

In the process, when the driving member 30 moves, the clamping mechanism 70, the latch 52 and the pressure valve 80 are driven to perform their respective operations, and the cooperation relationship between the clamping mechanism 70, the latch 52 and the pressure valve 80 is the same as that described above, and will not be described herein again.

As shown in fig. 18-20, the cover 100 further includes a power-off cap-opening mechanism 90, the power-off cap-opening mechanism 90 includes a spare driving member 92 and a spare transmission member 94, the spare transmission member 94 is sleeved on the output shaft of the driving member 32, the spare driving member 92 is in transmission connection with the spare transmission member 94 and is engaged with the cap-opening tool 230 to transmit the rotational motion output by the cap-opening tool 230 to the spare transmission member 94; that is, manual rotation of the lid opening tool 230 will rotate the backup drive member 92 and the backup transmission member 94, which in turn will rotate the output shaft of the drive member 32, so that the drive assembly 30 can normally move to unlock the latch mechanism 50 and the clamping mechanism 70, allowing the lid to be opened when the cooking utensil 200 is powered off.

Specifically, the auxiliary driving member 92 has a coupling hole 921 which is coupled to the lid opening tool 230, and the cross sections of the coupling hole 921 and the cross section of the mating end 231 of the lid opening tool 230 are both configured to be non-circular, so that when the operator rotates the lid opening tool 230, the mating end 231 of the lid opening tool 230 is prevented from sliding in the coupling hole 921, and the auxiliary driving member 92 can be reliably rotated by the lid opening tool 230.

In an embodiment of the present invention, there is provided the cover 100, which can lock the cover 100 and the pot body 210 in multiple ways, and can also perform pressure adjustment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cover, comprising:

an upper cover (10);

the driving assembly (30) and the locking mechanism (50) are arranged on the upper cover (10), and the locking mechanism (50) comprises a lock catch (52);

the lock catch (52) is switched between a buckling state of buckling with a fixing buckle (211) of the pot body (210) and a separating state of separating from the fixing buckle (211) under the action of the driving assembly (30).

2. The cover according to claim 1, wherein the driving assembly (30) comprises a driving member (32) and a transmission member (34) disposed between the driving member (32) and the latch (52), the transmission member (34) is reciprocally linearly moved in a first direction by the driving member (32), and the latch (52) is switched between the engaged state and the disengaged state in a second direction intersecting the first direction by the transmission member (34).

3. A cover body according to claim 2, wherein a side of the transmission member (34) facing the lock catch (52) is convexly provided with a boss (341) in the second direction, and a side of the lock catch (52) facing the transmission member (34) is provided with an engaging portion (522);

when the lock catch (52) is in the separated state, the boss (341) moves along the first direction to abut against the matching part (522), and pushes the matching part (522) and the lock catch (52) to move along the second direction to be separated from the fixing buckle (211);

when the lock catch (52) is in a buckling state, the boss (341) moves to be separated from the matching part (522) along the first direction, and the matching part (522) and the lock catch (52) are allowed to move to be buckled with the fixing buckle (211) along the second direction.

4. A cover body according to claim 3, wherein the lock catch (52) is at least partially stacked on the transmission member (34), the boss (341) is convexly provided on a surface of the transmission member (34) facing the lock catch (52), and the engaging portion (522) capable of abutting against the boss (341) in the second direction is convexly provided on a surface of the lock catch (52) facing the transmission member (34).

5. The cover of claim 3, wherein the locking mechanism (50) further comprises a guide rail (54) and an elastic member (56), the guide rail (54) is disposed to extend along the second direction, the latch (52) is slidably sleeved on the guide rail (54), the elastic member (56) abuts between the latch (52) and the guide rail (54), and when the latch (52) is in the separated state, elastic potential energy for driving the latch (52) to switch to the locking position is stored.

6. The cover body according to claim 5, wherein a sliding slot (521) is formed in the lock catch (52), the guide rail (54) has a guide portion (541) protruding from the sliding slot (521), the lock catch (52) slides along the guide portion (541) through the sliding slot (521) in a second direction, and the elastic member (56) abuts between the guide portion (541) and an inner wall of the sliding slot (521) in the second direction.

7. A cover according to any one of claims 2-6, wherein the transmission member (34) is provided with a driving rack (35) extending in the first direction, and the output end of the driving member (32) is provided with a driving gear (321) engaged with the driving rack (35).

8. A cover according to any one of claims 2 to 6, further comprising a pressure regulating member (38) and a pressure valve (80), the pressure regulating member (38) being connected to the actuator (34) and moving synchronously, the pressure valve (80) being switchable between a pressure relief state for opening the vent in the cover (100) and a pressure accumulation state for closing the vent under the action of the pressure regulating member (38).

9. The cover according to claim 8, characterized in that the latch (52) is in the engaged state under the action of the transmission member (34) when the pressure valve (80) is brought into the pressure accumulation state by the pressure regulating member (38) under the action of the driving member (32); when the pressure regulating part (38) drives the pressure valve (80) to be in the pressure relief state under the action of the driving part (32), the lock catch (52) is in a separation state under the action of the transmission part (34).

10. The cover body (100) according to claim 2, further comprising a power-off cap-opening mechanism (90), wherein the power-off cap-opening mechanism (90) comprises a spare driving member (32) and a spare transmission member (34), the spare transmission member (34) is sleeved on an output shaft of the driving member (32), and the spare driving member (32) is in transmission connection with the spare transmission member (34) and is matched with a cap-opening tool to transmit the rotational motion output by the cap-opening tool to the spare transmission member (34).

11. A cooking appliance, characterized in that it comprises a cover (100) according to any one of the preceding claims 1 to 10.