CN106852654B

CN106852654B - Driving mechanism, pot cover assembly and cooking utensil

Info

Publication number: CN106852654B
Application number: CN201710063170.8A
Authority: CN
Inventors: 黄忠平; 张培德; 柏长升; 陈志聪; 赖达英; 马日春; 王俊; 符星珂; 刘玉婷
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2017-01-23
Filing date: 2017-01-23
Publication date: 2023-12-08
Anticipated expiration: 2037-01-23
Also published as: CN106852654A

Abstract

The invention provides a driving mechanism, a pot cover assembly and a cooking utensil. The driving mechanism comprises an operation part; the lever part is movably connected with the mounting base, and the operating part can drive the lever part to be arranged; the lever part is provided with an initial position, a first working position and a second working position, the lever part can move from the initial position to the first position along a first direction and move from the first position to the first working position along a second direction opposite to the first direction, the lever part can move from the initial position to the second working position along a third direction, and the first direction and the third direction form an included angle. The lever is driven by the operating portion so that the lever portion can have a plurality of operating positions in different directions. Because the driving mechanism only comprises the operation part and the lever part, the driving mechanism has simple structure, can not cause the condition of redundant parts, and effectively avoids the condition that the driving mechanism in the prior art is easy to be blocked.

Description

Driving mechanism, pot cover assembly and cooking utensil

Technical Field

The invention relates to the technical field of cooking utensil equipment, in particular to a driving mechanism, a pot cover assembly and a cooking utensil.

Background

In the prior art, the electric pressure cooker is basically in a pressure cooking mode, and the cooked food is cooked too thoroughly by adopting the pressure cooking mode, so that the electric pressure cooker has a dark color and luster compared with a rice cooker, has poor taste and is not ideal in comprehensive cooking effect. In the prior art, the electromagnetic valve is adopted to carry out air exhaust and pressure relief to achieve the pressureless cooking effect, and the mode has the advantages of complex structure, low reliability and high production cost. Further, the driving mechanism of the exhaust valve and the pressure release valve in the electric cooker in the prior art is complex in structure and easy to cause component redundancy, so that the driving mechanism is easy to be blocked after being used for a period of time to cause failure of the driving mechanism, and the problem that potential safety hazards exist in the use of cooking utensils is easy to be caused.

Disclosure of Invention

The invention mainly aims to provide a driving mechanism, a pot cover assembly and a cooking utensil, so as to solve the problem that the driving mechanism in the prior art is complex in structure.

In order to achieve the above object, according to one aspect of the present invention, there is provided a driving mechanism comprising: an operation unit; the lever part is movably connected with the mounting base, and the operating part can drive the lever part to be arranged; the lever part is provided with an initial position, a first working position and a second working position, the lever part can move from the initial position to the first position along a first direction and move from the first position to the first working position along a second direction opposite to the first direction, the lever part can move from the initial position to the second working position along a third direction, and the first direction and the third direction form an included angle.

Further, the lever portion includes: the lever, the first end of operating portion drive lever to make the second end of lever move to the first position along first direction, or the first end of operating portion drive lever to make the lever move to the second working position along the third direction.

Further, the operation section includes: the first key is provided with a first driving position for driving the first end of the lever and a first preparation position for preparing to drive the first end of the lever.

Further, the operation section further includes: the second key is provided with a second driving position for driving the first end of the lever and a second preparation position for preparing to drive the first end of the lever.

Further, the first key includes: a key body; the first end of the first jack-prop is connected with the key body, the second end of the first jack-prop is a free end, and the head of the second end of the first jack-prop is provided with a first inclined plane.

Further, the lever includes: the lever body is provided with a groove, the groove wall of the groove is provided with a second inclined plane matched with the first inclined plane, and when the first jack post drives the lever, the first inclined plane is attached to the second inclined plane and drives the lever body to move along the first direction.

Further, the operation portion includes a second key, the first key further includes a second jack post, the second key includes a third jack post, and the first jack post is located between the second jack post and the third jack post.

Further, the lever includes: a lever body; the connecting part is arranged on the lever body, and the lever body is connected with the limiting part arranged on the installation foundation through the connecting part.

Further, the stopper includes: the limiting part is provided with a limiting groove, the connecting part is connected with the limiting part through the limiting groove, when the operating part drives the first end of the lever, the lever body rotates relative to the limiting part, so that the second end of the lever moves along a third direction, and/or when the operating part drives the first end of the lever, the lever body slides relative to the limiting part along the first direction.

Further, the connecting portion comprises a first connecting protrusion and a second connecting protrusion, and the first connecting protrusion and the second connecting protrusion are symmetrically arranged on the lever body.

Further, the lever further includes: a lever body; the ejector rod is arranged on the lever body and extends along the vertical direction.

Further, the driving mechanism further includes: the first end of the push rod is movably arranged on the installation foundation, when the lever is positioned at the first working position, the lever is connected with the push rod, and when the lever is positioned at the second working position, the lever is separated from the push rod.

Further, the driving mechanism further includes: and when the lever moves to the first position along the first direction from the initial position, the first return spring enables the lever to move from the first position to the first working position.

According to another aspect of the present invention, there is provided a pot cover assembly comprising a driving mechanism, the driving mechanism being the driving mechanism described above.

Further, the method comprises the steps of: the pot cover body forms a mounting foundation; an exhaust part arranged on the pot cover body; the exhaust operation part is arranged on the pot cover body and can drive the exhaust part to be arranged, the exhaust part has an exhaust position capable of exhausting or a closing position for closing the exhaust in the cooking process, and the exhaust operation part forms an operation part of the driving mechanism.

Further, the exhaust operation section includes: a pressing part; the pressing part drives the first end of the lever to drive the second end of the lever to drive the exhaust part to enable the exhaust part to be located at the exhaust position, or drives the first end of the lever to drive the second end of the lever to enable the exhaust part to be located at the closing position.

Further, the lever further includes: and the first end of the first return spring is connected with the lever, and the second end of the first return spring is connected with the pot cover body.

Further, the pressing portion drives the first end of the lever such that the second end of the lever drives the air discharging portion in the vertical direction to place the air discharging portion in the air discharging position, or the pressing portion drives the first end of the lever such that the lever moves in the horizontal direction and places the air discharging portion in the closed position.

Further, the pressing portion includes: the first key is provided with a first driving position for driving the first end of the lever and a first preparation position for preparing to drive the first end of the lever.

Further, the pressing portion further includes: the second key is provided with a second driving position for driving the first end of the lever and a second preparation position for preparing to drive the first end of the lever.

Further, the pressing portion further includes: the first key and the second key work independently.

Further, the lever includes: the lever body is provided with a groove, the groove wall of the groove is provided with a second inclined plane matched with the first inclined plane, when the first jack post drives the lever, the first inclined plane is attached to the second inclined plane and drives the lever body to move along the horizontal direction, and the horizontal direction is the first direction or the second direction.

Further, the pressing portion further comprises a second key, the first key further comprises a second jack post, the second key comprises a third jack post, and the first jack post is located between the second jack post and the third jack post.

Further, the lever further includes: the connecting part is arranged on the lever body, and the lever body is movably connected with the pot cover body through the connecting part.

Further, the pot cover body includes: and the lever body is connected with the limiting part through the connecting part.

Further, the stopper includes: the limiting part is provided with a limiting groove, the connecting part is connected with the limiting part through the limiting groove, when the pressing part drives the first end of the lever, the lever body rotates relative to the limiting part, the second end of the lever moves along the vertical direction, the vertical direction is the third direction, and/or when the pressing part drives the first end of the lever, the lever body slides relative to the limiting part in the horizontal direction.

Further, the spacing portion includes first spacing muscle and the spacing muscle of second, all has the spacing groove on first spacing muscle and the spacing muscle of second, and first spacing muscle sets up relatively with the spacing muscle of second, and the lever body is connected with first spacing muscle and the spacing muscle of second through spacing portion, and the lever body is located between first spacing muscle and the spacing muscle of second.

Further, the exhaust part includes: when the first end of the lever is driven by the second key, the second end of the lever pushes the exhaust valve to an exhaust position.

Further, the lever further includes: the ejector rod is arranged on the lever body, and the lever jacks the exhaust valve to the exhaust position through the ejector rod.

Further, the exhaust part further includes: a float; the first end of push rod movably sets up on the pot cover body, and the second end of push rod is used for the joint lever, and when exhaust portion was located the exhaust position, the second end of push rod was spacing in the below of the second end of push rod with the float so that the float is located the exhaust position.

Further, the float has a float closing position, when the exhaust part is located at the closing position, the float is located at the float closing position, the push rod is provided with a yielding hole, when the float is located at the float closing position, the second end of the push rod is separated from the lever, and the top end of the float penetrates out of the yielding hole.

Further, a bayonet is arranged at the second end of the lever, and a clamping convex block matched with the bayonet is arranged at the second end of the push rod.

Further, the exhaust part further includes: and the second reset spring is connected with the push rod.

Further, the push rod further includes: the first end of the positioning rod is connected with the push rod body, the second end of the positioning rod is a free end and extends to the outer side of the pot cover body, and the second reset spring is sleeved on the positioning rod.

Further, the push rod further includes: the contact is arranged at the first end of the positioning rod and extends towards the inner side of the pot cover body, and when the pot cover body drives the contact to rotate to a position where the pot cover is separated from the pot body, the contact drives the push rod to move outwards so that the lever is separated from the push rod.

According to another aspect of the present invention, there is provided a cooking appliance including a lid assembly, the lid assembly being the lid assembly described above.

By applying the technical scheme of the invention, the driving mechanism comprises an operation part and a lever part. The lever part is movably connected with the mounting base, and the operating part can drive the lever part to be arranged. The lever part is provided with an initial position, a first working position and a second working position, the lever part can move from the initial position to the first position along a first direction and move from the first position to the first working position along a second direction opposite to the first direction, the lever part can move from the initial position to the second working position along a third direction, and the first direction and the third direction form an included angle. The lever is driven by the operating portion so that the lever portion can have a plurality of operating positions in different directions. Because the driving mechanism only comprises the operation part and the lever part, the driving mechanism has simple structure and can not cause the condition of redundant parts, namely the condition that the driving mechanism in the prior art is easy to be blocked is effectively avoided. The reliability and the safety of the driving mechanism are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of a pot cover assembly according to the present application;

FIG. 2 is a schematic view showing an explosion structure of the exhaust operation section in FIG. 1 in an exhaust state;

FIG. 3 is a schematic view showing an explosion structure of the exhaust operation section in FIG. 1 in a closed state;

FIG. 4 is a schematic view showing an exploded construction of the exhaust gas operation section of FIG. 1; and

FIG. 5 illustrates a schematic structural view of another view of the embodiment of the lid assembly of FIG. 1;

FIG. 6 shows an enlarged schematic view of the structure of FIG. 5 at A;

fig. 7 shows a schematic view of the structure of the operating part in fig. 1 in an initial position;

fig. 8 is a schematic view showing the structure of the operation part in fig. 1 in a key state;

fig. 9 is a schematic view showing the structure of the operation part and the exhaust part in fig. 1 in an initial position;

FIG. 10 is a schematic diagram showing the structure of the second key in FIG. 1 in a key state;

FIG. 11 is a schematic diagram showing the structure of the first key in FIG. 1 in a key state;

FIG. 12 is a schematic diagram showing the first key in FIG. 1 in a reset state;

FIG. 13 is a schematic view showing the structure of the pot cover and the lid of the pot body in FIG. 1;

fig. 14 is a schematic view showing the structure of the pot cover and the pot body in the opened state in fig. 1.

Wherein the above figures include the following reference numerals:

10. a pot cover body; 11. a limit part; 111. a limit protrusion; 1111. a limit groove; 1112. the first limit rib; 1113. the second limit rib;

12. a pot tooth;

20. an exhaust unit;

21. an exhaust valve;

22. a float;

23. a push rod; 231. a relief hole; 232. a clamping convex block; 233. a positioning rod; 234. a contact;

24. a second return spring;

30. an exhaust operation unit;

31. a pressing part; 311. a first key; 3111. a first jack-prop; 3112. a first inclined surface; 3113. a second jack post;

312. a second key; 3121. a third jack post;

32. a lever; 321. a groove; 3211. a second inclined surface;

322. a connection part; 3221. a first connection protrusion; 3222. a second connection protrusion;

323. a push rod; 324. a bayonet; 325. a first return spring; 326. a protrusion.

Detailed Description

It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of these exemplary embodiments to those skilled in the art, that in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and that identical reference numerals are used to designate identical devices, and thus descriptions thereof will be omitted.

As shown in connection with fig. 1 to 14, according to an embodiment of the present invention, there is provided a driving mechanism.

Specifically, the driving mechanism includes an operation portion and a lever portion. The lever part is movably connected with the mounting base, and the operating part can drive the lever part to be arranged. The lever part is provided with an initial position, a first working position and a second working position, the lever part can move from the initial position to the first position along a first direction and move from the first position to the first working position along a second direction opposite to the first direction, the lever part can move from the initial position to the second working position along a third direction, and the first direction and the third direction form an included angle.

In the embodiment, the lever principle is adopted, so that the driving mechanism can realize various working positions in different directions, and the practicability of the driving mechanism is improved. The driving mechanism has simple structure and convenient operation.

Wherein the lever portion comprises a lever 32, as shown in fig. 2. The operating portion drives the first end of the lever 32 to move the second end of the lever 32 to the first position in the first direction. Alternatively, the operating portion drives the first end of the lever 32 to move the lever 32 in the third direction to the second working position.

As shown in fig. 2, the operation section includes a first key 311 and a second key 312. The first key 311 has a first driving position to drive the first end of the lever 32 and a first standby position to prepare to drive the first end of the lever 32. The second key 312 has a second driving position to drive the first end of the lever 32 and a second ready position to ready to drive the first end of the lever 32. The operation part adopts a setting mode of two keys, and can press the corresponding keys according to the position condition of the lever 32 so as to realize the purpose of realizing the work of the lever 32, thereby increasing the practicability, reliability and flexibility of the driving mechanism. The first key 311 and the second key 312 are independently disposed, and of course, the first key 311 and the second key 312 may be disposed in a cooperative manner when the other key does not interfere with the working state of the lever when one of the keys is pressed.

As shown in fig. 4, the first key 311 includes a key body and a first post 3111. The first end of the first pillar 3111 is connected to the key body, the second end of the first pillar 3111 is a free end, and a first inclined surface 3112 is provided at a head of the second end of the first pillar 3111. In order to enable the lever to be better matched with the first key 311, a groove 321 is formed in the lever body. The groove wall of the groove 321 is provided with a second inclined plane 3211 matched with the first inclined plane 3112, and when the first top column 3111 drives the lever 32, the first inclined plane 3112 is jointed with the second inclined plane 3211 and drives the lever body to move along the first direction. When the first top post 3111 stops driving the lever 32, that is, when the force applied to the first top post 3111 is released, the first button 311 is in a reset movement state, and the lever gradually moves in the second direction as the first button 311 moves.

Wherein, the first key 311 further includes a second top post 3113. The second key 312 includes a third post 3121, the first post 3111 being located between the second post 3113 and the third post 3121. This arrangement allows the second and third top posts 3113 and 3121 to act on the lever body, respectively, for the purpose of driving the lever.

In order to increase the mounting stability of the lever, the lever body further includes a connection portion 322. The connecting part 322 is arranged on the lever body, and the lever body is connected with the limiting part 11 arranged on the installation foundation through the connecting part 322.

In order to enable the lever to have different working positions in a plurality of directions, the limiting part is provided in a structure form with the limiting groove 1111, so that the movable space of the lever can be effectively increased. The connecting portion 322 is connected to the limiting portion 11 through the limiting groove 1111, and when the operating portion drives the first end of the lever 32, the lever body rotates relative to the limiting portion 11, so that the second end of the lever 32 moves along the third direction. Of course, when the operating portion drives the first end of the lever 32, the lever body may also slide along the first direction relative to the limiting portion 11. When the lever moves along the third direction, the lever can move from the initial position to the first position and then directly move from the first position to the second working position. When the lever moves along the third direction, the lever can also move from the initial position to the first position, then move a certain distance along the second direction from the first position and then move to the second working position along the third direction.

Specifically, the connection portion 322 includes a first connection protrusion 3221 and a second connection protrusion 3222, and the first connection protrusion 3221 and the second connection protrusion 3222 are symmetrically disposed on the lever body. This arrangement can effectively increase the connection stability of the lever with the mounting base.

The lever 32 also includes a push rod 323. The ejector rod 323 is disposed on the lever body and extends in a vertical direction. This arrangement enables the lever to be moved to a predetermined second operating position by the carrier rod 323.

To further improve the usability of the drive mechanism, the drive mechanism further comprises a push rod 23. The first end of the push rod 23 is movably arranged on the mounting base, the lever 32 is connected with the push rod 23 when the lever 32 is positioned at the first working position, and the lever 32 is separated from the push rod 23 when the lever 32 is positioned at the second working position.

To further increase the flexibility and reliability of the drive mechanism, the drive mechanism further comprises a first return spring 325. A first end of the first return spring 325 is connected to the lever 32 and a second end of the first return spring 325 is connected to the mounting base, the first return spring 325 moving the lever 32 from the first position to the first operating position when the lever 32 is moved from the initial position to the first position in the first direction.

According to another aspect of the present application, as shown in fig. 1, a pot cover assembly is provided. The pot cover assembly includes a pot cover body 10, an exhaust part 20, and an exhaust operation part 30. The exhaust part 20 is provided on the pot cover body 10. The exhaust operation part 30 is provided on the lid body 10, and the exhaust operation part 30 is provided so as to drive the exhaust part 20, and the exhaust part 20 has an exhaust position where exhaust is possible or a closing position where exhaust is closed during cooking. Wherein the lid body 10 forms a mounting base, and the exhaust operation portion 30 forms the operation portion of the driving mechanism.

In the present embodiment, the exhaust part is provided on the pot cover body, and the exhaust part is driven by the exhaust operation part, so that the cooking appliance having the pot cover assembly can realize the non-pressure cooking mode (when the exhaust part is in the exhaust position) and realize the high-pressure cooking mode (when the exhaust part is in the closed position) during the cooking. The user can select different cooking modes according to different foods to cook the foods, so that the condition that the foods are boiled is effectively prevented, and the mouthfeel of the foods is improved. The structure is simple, the operation is convenient and reliable. Wherein, when the air discharge portion 20 is at the air discharge position at the start of cooking, the pressureless cooking mode is realized at this time. Of course, the exhaust portion may be located at the exhaust position by the operation portion after cooking is performed for a certain period of time, and the pressureless cooking mode may be realized.

As shown in fig. 2, the air discharge operation portion 30 includes a pressing portion 31 and a lever 32. The pressing portion 31 drives the first end of the lever 32 such that the second end of the lever 32 drives the air discharging portion 20 to place the air discharging portion 20 at the air discharging position, however, it is also possible that the pressing portion 31 drives the first end of the lever 32 such that the second end of the lever 32 drives the air discharging portion 20 to place the air discharging portion 20 at the closed position. The arrangement can control the opening and closing of the exhaust part 20 through the pressing part 31, thereby improving the cooking mode of realizing pressure cooking or non-pressure cooking in the inner pot, and improving the controllability and reliability of the exhaust part 20.

As shown in fig. 2 and 3, the lever 32 further includes a first return spring 325, a first end of the first return spring 325 is connected to the lever 32, and a second end of the first return spring 325 is connected to the lid body 10. This arrangement enables the lever 32 to be reset to the initial position in time after the lever 32 is pressed by the pressing portion 31 for the air discharging operation, so that the next time the lever 32 is driven to switch the air discharging mode of the air discharging portion 20 is prepared.

Referring to fig. 2 and 3, the pressing portion 31 includes a first key 311 and a second key 312. The first key 311 has a first driving position to drive the first end of the lever 32 and a first standby position to prepare to drive the first end of the lever 32. The second key 312 has a second driving position to drive the first end of the lever 32 and a second ready position to ready to drive the first end of the lever 32. In the present embodiment, the first key 311 and the second key 312 may be provided to operate each independently. The first standby position and the second standby position may be initial positions of the first key 311 and the second key 312. The arrangement is such that the first button 311 and the second button 312 respectively realize driving different air discharging parts to switch the air discharging mode of the air discharging part.

Specifically, as shown in fig. 4, the first key 311 includes a key body and a first post 3111. The first end of the first pillar 3111 is connected to the key body, the second end of the first pillar 3111 is a free end, and a first inclined surface 3112 is provided at a head of the second end of the first pillar 3111. The arrangement is such that the lever 32 can be moved in the horizontal direction by the first inclined surface 3112 provided at the head of the second end of the first jack 3111 when the first key 311 is pressed, and when the lever 32 is moved by the driving of the first jack 3111, the first key 311 is restored to the initial position by the first return spring 325 when the first key 311 is released.

Further, in order to achieve a better fit of the first key 311 with the lever 32, the lever 32 is provided to include a lever body. The lever body is provided with a groove 321, the groove wall of the groove 321 is provided with a second inclined plane 3211 matched with the first inclined plane 3112, and when the first jack post 3111 drives the lever 32, the first inclined plane 3112 is attached to the second inclined plane 3211 and drives the lever body to move backwards along the horizontal direction. Wherein the horizontal direction is the first direction or the second direction.

Referring to fig. 4 again, the first key 311 further includes a second pillar 3113, the second key 312 includes a third pillar 3121, and the first pillar 3111 is located between the second pillar 3113 and the third pillar 3121. The arrangement is such that the second and third support columns 3113 and 3121 respectively drive the lever bodies located at both sides of the groove 321 for the purpose of driving the lever. The arrangement makes the structures of the first key 311 and the second key 312 simpler, the operation is simpler and more convenient, and the reliability is strong.

The lever 32 also includes a connecting portion 322. The connecting part 322 is arranged on the lever body, and the lever body is movably connected with the pot cover body 10 through the connecting part 322. The arrangement can increase the stability and reliability of the lever, so that the problem that the lever is deviated in the process of driving the lever to cause driving failure can be avoided.

Specifically, the connection portion 322 includes a first connection protrusion 3221 and a second connection protrusion 3222. The first and second connection protrusions 3221 and 3222 are symmetrically disposed on the lever body. This arrangement further increases the stability and reliability of the lever 32.

As shown in fig. 1 to 4, the exhaust portion 20 includes an exhaust valve 21. When the second button 312 actuates the first end of the lever 32, the second end of the lever 32 pushes the exhaust valve 21 to the exhaust position. This arrangement enables the exhaust valve 21 to be controlled in the exhaust state by the second key 312, improving the reliability of switching the exhaust valve 21 to the exhaust state.

The lever 32 further includes a push rod 323. The ejector rod 323 is arranged on the lever body, and the lever 32 ejects the exhaust valve 21 to the exhaust position through the ejector rod 323. That is, when the second key 312 drives the first end of the lever 32, the second end of the lever 32 lifts the exhaust valve 21 to the exhaust position through the ejector rod 323.

Further, the exhaust part 20 further includes a float 22 and a push rod 23. The float 22 has a float closed position, and when the degassing portion 20 is in the closed position, the float 22 is in the float closed position. The first end of the push rod 23 is movably arranged on the pot cover body 10, the second end of the push rod 23 is used for clamping the lever 32, and when the exhaust part 20 is positioned at the exhaust position, the second end of the push rod 23 limits the floater 22 below the second end of the push rod 23 so that the floater 22 is positioned at the exhaust position. The push rod 23 is provided with a relief hole 231, and when the float 22 is positioned at the closed position of the float, the second end of the push rod 23 is separated from the lever 32, and the top end of the float 22 passes through the relief hole 231. I.e. the float 22 is restrained under the push rod 23 by the cooperation of the push rod 23 and the lever 32 to keep the float 22 in a continuously vented state. The pot cover assembly is added to realize that food can be cooked more reliably without pressure.

Specifically, the lever 32 is provided with a bayonet 324 on a second end thereof. A second end of the push rod 23 is provided with a clamping projection 232 which is matched with the bayonet 324. This arrangement enables the lever 32 to be detachably connected to the push rod 23, and increases the connection reliability between the lever 32 and the push rod 23.

The exhaust portion 20 also includes a second return spring 24. The second return spring 24 is connected to the push rod 23. The second return spring 24 is configured such that when the second end of the lever 32 is pushed toward the second end of the push rod 23, the second return spring 24 applies a preload force to the push rod 23 such that the bayonet 324 on the second end of the lever 32 snaps over the snap tab 232 on the second end of the push rod 23.

To facilitate the installation of the second return spring 24, a positioning rod 233 is further provided on the push rod 23. The first end of the positioning rod 233 is connected with the push rod body, the second end of the positioning rod 233 is a free end and extends to the outer side of the pot cover body 10, and the second return spring 24 is sleeved on the positioning rod 233.

As shown in fig. 5, the push rod 23 further includes a contact 234. The contact 234 is disposed on the first end of the positioning rod 233 and extends toward the inner side of the pot cover body 10, and when the pot cover body 10 drives the contact 234 to rotate to a position where the pot cover is separated from the pot body, the contact 234 drives the push rod 23 to move outwards so as to separate the lever 32 from the push rod 23. Specifically, as shown in fig. 13 and 14, when the lid is rotated in the arrow direction, the push rod 23 moves outward and the push rod 23 is disengaged from the lever when the contact 234 contacts the teeth 12 of the pot body.

Specifically, in the present embodiment, switching between the pressured and pressureless modes is achieved using double key. The second key is pressed down, and is blocked by the action of the lever and the push plate connecting rod, namely the push rod, the push plate connecting rod blocks the floater from floating upwards, the lever jacks up the pressure limiting valve, the pressure limiting valve and the floater are kept in a continuous exhaust state, and the pressure-free cooking mode is entered. The first key is switched to press or uncap, namely, under the action of the contact, the lever is reset to unlock, the non-pressure cooking mode can be canceled to restore the default high-pressure mode, double reset is realized, manual exhaust can be realized, and the use convenience of the electric pressure cooker is improved.

According to another aspect of the present invention, there is provided a cooking appliance including a pot cover assembly. The pot cover assembly is the pot cover assembly in the embodiment. Specifically, the cooking utensil comprises a pot body, a steel cover, an inner cover, a surface cover, a first key, a second key, a lever, a pressure limiting valve, a floater, a push plate connecting rod, a first reset spring, a second reset spring and the like. The second button is pressed down, the round bar of second button presses lever one end down, the other end jack-up pressure limiting valve, drive the push pedal connecting rod simultaneously and block the back with the lever other end, rebound under the effect of second reset spring, reach lever and push pedal connecting rod interlocking effect, block the lever under the effect of second reset spring, do not let the lever rebound to reset, reach push pedal connecting rod restriction float effect, the lever jack-up pressure limiting valve makes pressure limiting valve and float keep exhaust state all the time, get into pressureless cooking mode, avoid water spray or overflow, improve product security. The first key is pressed, the key inclined jacking column, namely the first jacking column, moves along the chute of the lever, namely the groove, the lever is driven to move backwards under the action of the first reset spring, one end of the lever, which is clamped with the push plate connecting rod, is unlocked and separated, the floater can be jacked up by the pressure in the cooker at the moment, the pressure limiting valve is pressed down, the closing state is restored, and the functional mode is restored to the pressure cooker mode by the non-pressure mode, so that the reset effect is achieved. When the first reset spring is not pressed down, the cover is rotated, so that the lever can be reset, and the effect of resetting to a high-pressure mode is realized. After the high-pressure cooking work, the first key can be pressed, only the two ends of the lever move up and down at the moment, the action of the top pressure limiting valve is achieved, and the manual exhaust effect is achieved.

Before the electric pressure cooker works, the second key is pressed, so that the push plate connecting rod limits the floater to jack up, the lever jacks up the pressure limiting valve, the exhaust effect is achieved, the electric pressure cooker enters the pressureless cooking mode, the first key is pressed or the cover is rotated to enable the key to reset to cancel the pressureless cooking mode, and the electric pressure cooker can be exhausted manually. The pressure-free operation of the electric pressure cooker and the function selection mode of the electric cooker can be realized through the exhaust pressure relief device, and the versatility and convenience of the use of the electric pressure cooker are improved.

Specifically, the pressing portion 31 drives the first end of the lever 32 to cause the second end of the lever 32 to drive the air discharge portion 20 in the vertical direction to locate the air discharge portion 20 at the air discharge position. Of course, the first end of the lever 32 may be driven by the pressing portion 31 to move the lever 32 in the horizontal direction and to position the air discharging portion 20 at the closed position. Wherein the vertical direction is the third direction described above.

As shown in fig. 7 and 8, the first key and the second key are both at initial positions with the lever, and when the first key 311 is driven by a hand, the second end of the lever 32 moves upward in the vertical direction, and when the first key 311 is stopped by releasing the hand, the second end of the lever 32 moves downward in the vertical direction and returns to the initial position under the action of the first return spring. In order to ensure the reliability of the first return spring, a protrusion 326 (see fig. 4) is provided on the lever 32, one end of the first return spring is sleeved on the protrusion 326, and the other end of the first return spring is connected with the pot cover.

As shown in fig. 6, in order to increase the connection stability between the lever and the pot cover, the pot cover body 10 includes a limiting part 11, and the lever body is connected with the limiting part 11 through a connection part 322.

Further, the stopper 11 may include a stopper protrusion 111. The limiting protrusion 111 is provided with a limiting groove 1111, the connecting portion 322 is connected with the limiting protrusion 111 through the limiting groove 1111, when the pressing portion 31 drives the first end of the lever, the lever body uses the contact surface of the connecting portion 322 and the limiting groove 1111 as a rotation supporting surface, so that the second end of the lever 32 moves along the vertical direction, wherein the vertical direction is the third direction. Alternatively, when the pressing portion 31 drives the first end of the lever 32, the lever body moves in the horizontal direction with the contact surface of the connecting portion 322 and the limiting groove 1111 as a sliding support surface. This arrangement can further increase the stability of the connection between the lever and the lid.

Specifically, when the pressing portion 31 drives the first end of the lever 32, the lever body rotates relative to the limit projection 111, so that the second end of the lever 32 moves in the vertical direction. Alternatively, when the pressing portion 31 drives the first end of the lever 32, the lever body slides in a horizontal direction with respect to the limit projection 111, wherein the horizontal direction is the first direction or the second direction.

Specifically, the limit projection 111 includes a first limit rib 1112 and a second limit rib 1113. The first spacing muscle 1112 and the spacing muscle 1113 of second are last all to have spacing groove 1111, and first spacing muscle 1112 sets up with the spacing muscle 1113 of second relatively, and the lever body is connected with first spacing muscle 1112 and the spacing muscle 1113 of second through spacing portion 11, and the lever body is located between first spacing muscle 1112 and the spacing muscle 1113 of second. Namely, the connecting protrusions of the limiting parts are arranged in one-to-one correspondence with the limiting grooves, so that the stability of lever installation is further improved.

As shown in fig. 9, the first button 311 and the second button 312 are both in the initial positions, and the lever 32 is connected to the push rod 23. When the first button 311 is driven to drive the exhaust valve 21 to exhaust, the lever 32 is separated from the push rod 23, and at this time, the lever 32 is located above the push rod 23, and the float 22 is located below the push rod 23 (as shown in fig. 10).

As shown in fig. 11, when the cooking appliance is used for pressure cooking, the first key 311 can be manually driven to drive the exhaust valve 21 to exhaust, and the hand is always placed on the first key 311 to drive, and the float is located below the yielding hole 231, that is, the push rod 23 does not limit the float 22 in the cooking mode, and when the hand is released, the first key 311 is reset under the action of the first reset spring as shown in fig. 12.

It is to be noted that the following description is made on the "initial position", "first operation position", and "second operation position" referred to in the present application:

as shown in fig. 9, the lever 32 is located below the push rod, at this time, the lever is not connected to the push rod (at this time, the lever is located at the initial position), when the first key acts on the lever, the lever is moved rightward for a distance in the horizontal direction (as shown in fig. 6, when the first connection protrusion 3221 is moved to the rightmost end of the limit groove 1111), stops moving (at this time, the lever is located at the first position), and the lever is moved leftward in the horizontal direction under the action of the first return spring until the lever is connected to the push rod (at this time, the lever is located at the first working position).

When the lever 32 is located below the push rod, the lever is not connected with the push rod, and when the second key acts on the lever, the second end of the lever is lifted upwards until the ejector rod on the lever can drive the exhaust valve (when the lever is located at the second working position), and in the lifting process of the lever, the lever drives the push rod to move for a certain stroke along the third direction, namely the vertical direction, and then the lever is separated from the push rod. Of course, in the present application, it may be configured that the lever is also moved to the first position in the horizontal direction and then moved to the upper side of the push rod and then moved in the vertical direction from the upper side of the push rod during the tilting of the lever. The "initial position", "first working position" and "second working position" in the present application are merely for convenience of description, and may be switched to each other during the operation of the driving assembly, that is, the first working position may be the initial position of the second working position, the second working position may be the first working position, and so on.

In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application, as generally described. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the application.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A drive mechanism, comprising:

an operation unit;

the lever part is movably connected with the mounting base, and the operating part can drive the lever part to be arranged;

the lever part is provided with an initial position, a first working position and a second working position, the lever part can move from the initial position to the first position along a first direction and move from the first position to the first working position along a second direction opposite to the first direction, and the lever part can move from the initial position to the second working position along a third direction, and the first direction forms an included angle with the third direction;

the lever portion includes:

a lever (32) that drives a first end of the lever (32) to move a second end of the lever (32) in the first direction to the first position, or,

the operating part drives the first end of the lever (32) to move the lever (32) to the second working position along the third direction;

the lever (32) comprises:

a lever body;

the connecting part (322) is arranged on the lever body, and the lever body is connected with the limiting part (11) arranged on the mounting base through the connecting part (322);

The limit part (11) comprises:

the limiting part (11) is provided with a limiting groove (1111), the connecting part (322) is connected with the limiting part (11) through the limiting groove (1111), when the operating part drives the first end of the lever (32), the lever body rotates relative to the limiting part (11) to enable the second end of the lever (32) to move along the third direction, and/or,

when the operating part drives the first end of the lever (32), the lever body slides along the first direction relative to the limit part (11);

the connecting portion (322) includes a first connecting protrusion (3221) and a second connecting protrusion (3222), and the first connecting protrusion (3221) and the second connecting protrusion (3222) are symmetrically disposed on the lever body.

2. The drive mechanism according to claim 1, wherein the operation portion includes:

a first key (311), the first key (311) having a first driving position for driving a first end of the lever (32) and having a first standby position ready for driving the first end of the lever (32).

3. The drive mechanism according to claim 1 or 2, wherein the operation portion further includes:

-a second key (312), the second key (312) having a second driving position for driving the first end of the lever (32) and a second ready position for ready driving the first end of the lever (32).

4. The drive mechanism according to claim 2, wherein the first key (311) comprises:

a key body;

the first jack post (3111), the first end of first jack post (3111) with the button body is connected, the second end of first jack post (3111) is the free end, the head of the second end of first jack post (3111) is provided with first inclined plane (3112).

5. The drive mechanism according to claim 4, wherein the lever (32) comprises:

the lever body, offered recess (321) on the lever body, be provided with on the cell wall of recess (321) with first inclined plane (3112) matched with second inclined plane (3211), when first jack-prop (3111) drive lever (32), first inclined plane (3112) with second inclined plane (3211) laminating mutually and drive the lever body is followed the first direction removes.

6. The drive mechanism according to claim 4, wherein the operation portion includes a second key (312), the first key (311) further includes a second jack post (3113), the second key (312) includes a third jack post (3121), and the first jack post (3111) is located between the second jack post (3113) and the third jack post (3121).

7. The drive mechanism of claim 1, wherein the lever (32) further comprises:

a lever body;

the ejector rod (323) is arranged on the lever body and extends along the vertical direction.

8. The drive mechanism of claim 1, further comprising:

the first end of the push rod (23) is movably arranged on the installation foundation, when the lever (32) is located at the first working position, the lever (32) is connected with the push rod (23), and when the lever (32) is located at the second working position, the lever (32) is separated from the push rod (23).

9. The drive mechanism of claim 1, further comprising:

and a first return spring (325), wherein a first end of the first return spring (325) is connected with the lever (32), a second end of the first return spring (325) is connected with the mounting base, and when the lever (32) moves from the initial position to the first position along a first direction, the first return spring (325) moves the lever (32) from the first position to the first working position.

10. A pot cover assembly comprising a drive mechanism, wherein the drive mechanism is as claimed in any one of claims 1 to 9.

11. The pot cover assembly of claim 10, comprising:

a lid body (10), the lid body (10) forming the mounting base;

an exhaust part (20) arranged on the pot cover body (10);

an exhaust operation part (30) arranged on the pot cover body (10), wherein the exhaust operation part (30) can drive the exhaust part (20) to be arranged, the exhaust part (20) has an exhaust position capable of exhausting or a closing position capable of closing exhaust in the cooking process, and the exhaust operation part (30) forms the operation part of the driving mechanism.

12. The pot cover assembly according to claim 11, wherein the exhaust operation part (30) includes:

a pressing part (31);

the pressing portion (31) drives the first end of the lever (32) to drive the second end of the lever (32) to drive the air discharging portion (20) so that the air discharging portion (20) is located at the air discharging position, or,

the pressing portion (31) drives the first end of the lever (32) to drive the second end of the lever (32) to drive the air discharge portion (20) so that the air discharge portion (20) is located at the closed position.

13. The pot cover assembly according to claim 12, wherein the lever (32) further comprises:

the first end of the first return spring (325) is connected with the lever (32), and the second end of the first return spring (325) is connected with the pot cover body (10).

14. The pot cover assembly according to claim 12, wherein the pressing part (31) drives the first end of the lever (32) to cause the second end of the lever (32) to drive the air exhausting part (20) in a vertical direction to cause the air exhausting part (20) to be located at the air exhausting position, or,

the pressing portion (31) drives a first end of the lever (32), moves the lever (32) in a horizontal direction, and positions the air discharge portion (20) in the closed position.

15. The pot cover assembly according to claim 12, wherein the pressing part (31) comprises:

16. The pot cover assembly according to any one of claims 12 to 15, wherein the pressing part (31) further comprises:

17. The pot cover assembly according to claim 15, wherein the pressing portion (31) further comprises:

-a second key (312), said second key (312) having a second driving position driving a first end of said lever (32) and having a second preparation position ready to drive the first end of said lever (32), said first key (311) and said second key (312) each operating independently.

18. The pot cover assembly according to claim 15, wherein the first key (311) comprises:

a key body;

19. The pot cover assembly according to claim 18, wherein the lever (32) comprises:

the lever body, offered recess (321) on the lever body, be provided with on the cell wall of recess (321) with first inclined plane (3112) matched with second inclined plane (3211), work as first jack-prop (3111) drive when lever (32), first inclined plane (3112) with second inclined plane (3211) laminating mutually and drive the lever body is along the horizontal direction removes, the horizontal direction is first direction or the second direction.

20. The pot cover assembly according to claim 18, wherein the pressing portion (31) further comprises a second key (312), the first key (311) further comprises a second top post (3113), the second key (312) comprises a third top post (3121), and the first top post (3111) is located between the second top post (3113) and the third top post (3121).

21. The pot cover assembly according to claim 14, wherein the lever (32) further comprises:

the connecting part (322), connecting part (322) set up on the lever body, the lever body is through connecting part (322) with pot cover body (10) movably are connected.

22. The pot cover assembly according to claim 21, wherein the pot cover body (10) comprises:

and the lever body is connected with the limiting part (11) through the connecting part (322).

23. The pot cover assembly according to claim 22, wherein the limiting portion (11) comprises:

the limiting part (11) is provided with a limiting groove (1111), the connecting part (322) is connected with the limiting part (11) through the limiting groove (1111), when the pressing part (31) drives the first end of the lever (32), the lever body rotates relatively to the limiting part (11) to enable the second end of the lever (32) to move along the vertical direction, the vertical direction is the third direction, and/or,

When the pressing part (31) drives the first end of the lever (32), the lever body slides in the horizontal direction relative to the limit part (11).

24. The pot cover assembly according to claim 23, wherein the limiting portion (11) comprises a first limiting rib (1112) and a second limiting rib (1113), the first limiting rib (1112) and the second limiting rib (1113) are respectively provided with the limiting groove (1111), the first limiting rib (1112) and the second limiting rib (1113) are oppositely arranged, the lever body is connected with the first limiting rib (1112) and the second limiting rib (1113) through the limiting portion (11), and the lever body is located between the first limiting rib (1112) and the second limiting rib (1113).

25. The pot cover assembly according to any one of claims 21 to 24, wherein the connection part (322) comprises a first connection protrusion (3221) and a second connection protrusion (3222), the first connection protrusion (3221) and the second connection protrusion (3222) being symmetrically disposed on the lever body.

26. The pot cover assembly according to claim 16, wherein the exhaust part (20) comprises:

and an exhaust valve (21), wherein when the second key (312) drives the first end of the lever (32), the second end of the lever (32) pushes the exhaust valve (21) to the exhaust position.

27. The pot cover assembly according to claim 26, wherein the lever (32) further comprises:

the ejector rod (323), ejector rod (323) is arranged on the lever body, and the lever (32) jacks up the exhaust valve (21) to the exhaust position through the ejector rod (323).

28. The pot cover assembly according to claim 12, wherein the exhaust part (20) further comprises:

a float (22);

the first end of the push rod (23) is movably arranged on the pot cover body (10), the second end of the push rod (23) is used for being clamped with the lever (32), and when the exhaust part (20) is located at the exhaust position, the second end of the push rod (23) limits the floater (22) to be located below the second end of the push rod (23) so that the floater (22) is located at the exhaust position.

29. The lid assembly of claim 28, wherein the float (22) has a float closed position, the float (22) is in the float closed position when the vent (20) is in the closed position, the push rod (23) is provided with a relief hole (231), the second end of the push rod (23) is disengaged from the lever (32) when the float (22) is in the float closed position, and the top end of the float (22) passes out of the relief hole (231).

30. The lid assembly of claim 28, wherein the lever (32) is provided with a bayonet (324) at a second end and the push rod (23) is provided with a snap tab (232) at a second end that mates with the bayonet (324).

31. The pot cover assembly according to claim 28, wherein the exhaust part (20) further comprises:

and a second return spring (24), wherein the second return spring (24) is connected with the push rod (23).

32. The pot cover assembly according to claim 31, wherein the push rod (23) further comprises:

the first end of the locating rod (233) is connected with the push rod body, the second end of the locating rod (233) is a free end and extends to the outer side of the pot cover body (10), and the second reset spring (24) is sleeved on the locating rod (233).

33. The pot cover assembly according to claim 32, wherein the push rod (23) further comprises:

the contact (234), contact (234) set up in on the first end of locating lever (233) and to the inboard extension of pot cover body (10), when pot cover body (10) drive contact (234) rotate to pot cover and pot body separation's position, contact (234) drive push rod (23) outwards remove so that lever (32) with push rod (23) are disengaged mutually.

34. A cooking appliance comprising a lid assembly, characterized in that the lid assembly is as claimed in any one of claims 10 to 33.