CN108244994B

CN108244994B - Electric pressure cooker

Info

Publication number: CN108244994B
Application number: CN201611250654.5A
Authority: CN
Inventors: 孙秋鹏; 刘日贵; 韩育德; 曾俊兵
Original assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Current assignee: Zhejiang Shaoxing Supor Domestic Electrical Appliance Co Ltd
Priority date: 2016-12-29
Filing date: 2016-12-29
Publication date: 2024-01-26
Anticipated expiration: 2036-12-29
Also published as: CN108244994A

Abstract

The invention provides an electric pressure cooker, comprising: the pot body is used for containing food to be cooked; the cooker cover is arranged on the cooker body and comprises a cooker cover main body and an inner cooker cover arranged on the cooker cover main body, an electromagnetic valve is arranged in the cooker cover main body, a pressure limiting valve is arranged on the inner cooker cover, a push handle is arranged on the outer side wall of the pressure limiting valve, and when the cooker cover is in a cover opening state, the electromagnetic valve pushes the push handle and enables the pressure limiting valve to exhaust; the guide structure is arranged between the inner pot cover and the electromagnetic valve, the inner pot cover is arranged in the pot cover main body, the guide structure drives the push rod of the electromagnetic valve to move towards the direction deviating from the push handle and avoid the push handle, and when the inner pot cover is arranged on the pot cover main body, the push rod resets and is matched with the push handle, and the push rod pushes the push handle and enables the pressure limiting valve to exhaust. The technical scheme of the invention solves the problem that when the inner pot cover is assembled or disassembled in the state of opening the cover of the electric pressure cooker in the prior art, the push rod of the electromagnetic valve and the push handle of the pressure limiting valve are easy to generate friction interference.

Description

Electric pressure cooker

Technical Field

The invention relates to an electric pressure cooker, in particular to an improvement of a pressure limiting valve of the electric pressure cooker.

Background

The electric pressure cooker is a common household appliance. The electric pressure cooker comprises a cooker cover main body and an inner cooker cover arranged below the detachable cooker cover main body, wherein an exhaust port and a pressure limiting valve arranged above the exhaust port are arranged on the inner cooker cover. An electromagnetic valve is arranged in the cooker cover main body, and when the inner cooker cover is arranged on the cooker cover main body, a push rod of the electromagnetic valve is matched with a push handle of the pressure limiting valve. When the electromagnetic valve is electrified, the push rod of the electromagnetic valve stretches out and pushes the pressure limiting valve to rise in a rotating mode. Meanwhile, in order to ensure that a user can smoothly uncap, a linkage piece is further arranged between an uncapping handle and an electromagnetic valve in the electric pressure cooker in the prior art, specifically, when the user rotates the handle to uncap, the linkage piece pushes a push rod of the pressure limiting valve and enables the pressure limiting valve to be in an exhaust state, the structure ensures that the user uncaps and simultaneously eliminates negative pressure in the cooker body, so that the user can uncap smoothly, but the structure can bring the following problems:

when the user uncaps and then dismounts or installs the inner pot cover, the push rod of the electromagnetic valve in the uncapped state is in an extending state and pushes the push handle of the pressure limiting valve, so that friction is easy to occur between the push handle of the pressure limiting valve and the push rod of the electromagnetic valve, on one hand, the user can have obvious obstruction feeling when installing the inner pot cover, and the use experience is influenced; on the other hand, after long-time use, the inner pot cover can be repeatedly installed and detached, so that the push handle of the pressure limiting valve and the push rod of the electromagnetic valve can be rubbed for a plurality of times, and the electromagnetic valve is easy to damage.

Disclosure of Invention

The invention mainly aims to provide an electric pressure cooker, which solves the problem that when an inner cooker cover is assembled or disassembled in a cover opening state of the electric pressure cooker in the prior art, a push rod of an electromagnetic valve and a push handle of a pressure limiting valve are easy to generate friction interference.

In order to achieve the above object, the present invention provides an electric pressure cooker including: the pot body is used for containing food to be cooked; the cooker cover is arranged on the cooker body and comprises a cooker cover main body and an inner cooker cover arranged on the cooker cover main body, an electromagnetic valve is arranged in the cooker cover main body, a pressure limiting valve is arranged on the inner cooker cover, a push handle is arranged on the outer side wall of the pressure limiting valve, and when the cooker cover is in a cover opening state, the electromagnetic valve pushes the push handle and enables the pressure limiting valve to exhaust; the guide structure is arranged between the inner pot cover and the electromagnetic valve, the inner pot cover is arranged in the pot cover main body, the guide structure drives the push rod of the electromagnetic valve to move towards the direction deviating from the push handle and avoid the push handle, and when the inner pot cover is arranged on the pot cover main body, the push rod resets and is matched with the push handle, and the push rod pushes the push handle and enables the pressure limiting valve to exhaust.

By applying the technical scheme of the invention, in the process of installing the inner pot cover, the guide structure enables the push rod to move backwards and avoid the push handle. When the inner pot cover is arranged on the pot cover main body, the push rod is reset and matched with the push handle, so that the push rod can normally push the push handle. The structure realizes that the push handle of the pressure limiting valve is not contacted with the push rod in the process of installing the inner pot cover, and further prevents friction between the push handle of the pressure limiting valve and the push rod, so that the technical scheme of the invention solves the problem that the push rod of the electromagnetic valve and the push handle of the pressure limiting valve are easy to generate friction interference when the inner pot cover is installed or disassembled in the uncapping state of the electric pressure cooker in the prior art.

Further, the push rod is provided with an avoidance through groove, and when the inner pot cover is arranged on the pot cover main body, the guide structure is embedded into the avoidance through groove so as to prevent the guide structure from interfering with the movement of the push rod.

Further, the guide structure includes: the movable pressing plate is movably arranged on the pot cover main body; the reset piece is arranged between the movable pressing plate and the pot cover main body, and applies elastic force towards the pot body to the movable pressing plate; the ejector rod is arranged on the movable pressing plate and extends towards the electromagnetic valve, and a guide surface is arranged on the ejector rod; in the process that the inner pot cover is arranged on the pot cover main body, the inner pot cover presses the movable pressing plate so as to enable the ejector rod to be matched with the push rod.

Further, the pot cover main part includes the inside lining and sets up the face lid on the inside lining, and interior pot cover sets up the downside at the inside lining, is provided with the installation through-hole on the inside lining, and movable clamp plate includes: the connecting column is penetrated in the mounting through hole, and the upper end of the connecting column is provided with a positioning convex edge; the limiting piece is connected to the lower extreme at the spliced pole, and the protruding edge of location and limiting piece are located the both sides of inside lining respectively, and wherein, the piece that resets is the spring, and the piece cover that resets is established outside the spliced pole to the one end and the lower surface butt of inside lining of piece that resets, the other end and the limiting piece butt that resets.

Further, the limiting piece is detachably connected to the connecting column through a screw.

Further, the tip of ejector pin is provided with the top, the guide surface sets up on the top, the rear end of push rod is provided with the locating plate, dodge logical groove formation on the locating plate, dodge logical groove including dodge logical groove and dodge logical groove with ejector pin complex first, the upper end intercommunication first of dodging of logical groove is dodged to the second, the lower extreme that logical groove was dodged to the second link up the lower extreme of locating plate, interior pot cover is installed in the in-process of pot cover main part, the bottom of push rod ejector locating plate is so that the push rod moves towards the direction that deviates from the solenoid valve, interior pot cover is installed in the pot cover main part, top and ejector pin imbed respectively to first dodge logical inslot and the second dodge logical inslot, in order to prevent ejector pin and top and push rod's motion trail interference.

Further, when the inner pot cover is detached from the pot cover main body, the lower surface of the plug is abutted with the lower surface of the first avoidance through groove so as to drive the push rod to move towards the direction deviating from the pressure limiting valve.

Further, when the push rod is in a free state, the distance from the center line of the plug to the push handle is smaller than the distance from the surface of the positioning plate, which faces the pressure limiting valve, to the push handle.

Further, in the horizontal direction, the distance between the opposite groove walls of the first avoidance channel is larger than the size of the plug, and the distance between the opposite groove walls of the second avoidance channel is larger than the size of the ejector rod and smaller than the size of the plug.

Further, the plug is spherical.

Drawings

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

FIG. 1 shows a schematic view of the structural fit of an inner pot cover of an embodiment of an electric pressure cooker according to the invention during assembly to a pot cover body;

FIG. 2 shows an enlarged schematic view at A in FIG. 1;

FIG. 3 shows a schematic side view of the lid of FIG. 1;

FIG. 4 shows an enlarged schematic view at B in FIG. 3;

FIG. 5 is a schematic view showing the structural fit of the inner pot cover of the electric pressure cooker of FIG. 1 after being assembled to the pot cover main body;

FIG. 6 shows an enlarged schematic view at C in FIG. 5;

FIG. 7 shows a schematic side view of the lid of FIG. 5;

FIG. 8 shows an enlarged schematic view of FIG. 7 at D;

fig. 9 shows an exploded view of the lid of the electric pressure cooker of fig. 1;

FIG. 10 is a schematic view showing the structure of the pot cover of FIG. 9 from another view angle;

FIG. 11 shows an enlarged schematic view at E in FIG. 10; and

fig. 12 shows a schematic structural view of a guide structure of the electric pressure cooker of fig. 1.

Wherein the above figures include the following reference numerals:

10. a pot cover; 11. a pot cover main body; 111. a lining; 112. a face cover; 12. an inner pot cover; 20. an electromagnetic valve; 21. a push rod; 30. a pressure limiting valve; 31. a push handle; 41. a movable pressing plate; 411. a connecting column; 412. positioning the convex edge; 413. a limiting piece; 414. a screw; 42. a reset member; 43. a push rod; 44. a plug; 50. avoiding the through groove; 51. the first avoidance through groove; 52. the second avoidance through groove; 60. a positioning plate; 70. and (5) installing the through holes.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

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 example embodiments in accordance with 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.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

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.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

As shown in fig. 1 to 8, the electric pressure cooker of the present embodiment includes a cooker body, a cooker cover 10, and a guide structure. Wherein, the pot body is used for holding the food to be cooked. The pot cover 10 is arranged on the pot body, and the pot cover 10 comprises a pot cover main body 11 and an inner pot cover 12 arranged on the pot cover main body 11. The electromagnetic valve 20 is arranged in the cooker cover main body 11, the pressure limiting valve 30 is arranged on the inner cooker cover 12, and the pushing handle 31 is arranged on the outer side wall of the pressure limiting valve 30. When the pot cover 10 is in the cover opening state, the electromagnetic valve 20 pushes the push handle 31 and exhausts the pressure limiting valve 30. The guide structure is disposed between the inner pot cover 12 and the solenoid valve 20. In the process that the inner pot cover 12 is arranged on the pot cover main body 11, the guide structure drives the push rod 21 of the electromagnetic valve 20 to move towards the direction deviating from the push handle 31 and avoid the push handle 31, when the inner pot cover 12 is arranged on the pot cover main body 11, the push rod 21 resets and is matched with the push handle 31, and the push rod 21 pushes the push handle 31 and enables the pressure limiting valve 30 to exhaust.

By applying the technical scheme of the embodiment, in the process of installing the inner pot cover 12, the guide structure enables the push rod 21 to move backwards and avoid the push handle 31. When the inner lid 12 is mounted on the lid body 11, the push rod 21 is reset and the push handle 31 is engaged with the push rod 21, so that the push rod 21 can normally push the push handle 31. The structure realizes that the push handle 31 of the pressure limiting valve 30 is not contacted with the push rod 21 in the process of installing the inner pot cover 12, and further prevents friction between the push handle 31 of the pressure limiting valve 30 and the push rod 21, so that the technical scheme of the embodiment solves the problem that friction interference is easy to occur between the push rod of the electromagnetic valve and the push handle of the pressure limiting valve when the inner pot cover is installed or detached in the state of opening the cover in the electric pressure cooker in the prior art.

As shown in fig. 1 to 8, in the technical solution of this embodiment, the push rod 21 is provided with a through groove 50, and when the inner pot cover 12 is mounted on the pot cover main body 11, the guiding structure is embedded into the through groove 50, so as to prevent the guiding structure from interfering with the movement of the push rod 21. Specifically, in order to prevent the guide structure from interfering with the movement of the push rod 21 after the inner lid 12 is mounted on the lid body 11, the push rod 21 is provided with the escape through groove 50. The guide structure can further enable the push rod 21 to realize normal telescopic movement by avoiding the through groove 50.

As shown in fig. 1 to 8, in the technical solution of the present embodiment, the guiding structure includes a movable pressing plate 41, a reset member 42, and a push rod 43. Wherein the movable platen 41 is movably provided on the pot cover main body 11. The restoring member 42 is provided between the movable platen 41 and the lid main body 11, and the restoring member 42 applies an elastic force to the movable platen 41 in a direction toward the pot body. The ejector rod 43 is provided on the movable platen 41 and extends toward the solenoid valve 20, and a guide surface is provided on the ejector rod 43. In the process of mounting the inner pot cover 12 on the pot cover main body 11, the inner pot cover 12 presses the movable pressing plate 41 so as to enable the ejector rod 43 to be matched with the push rod 2. Specifically, when the inner lid 12 is not mounted, the movable platen 41 moves downward by the restoring member 42, thereby separating the push rod 43 from the push rod 21. When the inner lid 12 is mounted, the upper surface of the inner lid 12 pushes against the movable platen 41 and the movable platen 41 is lifted. During the lifting of the movable platen 41, the ejector rod 43 is in abutting engagement with the push rod 21. The push rod 21 moves towards a direction away from the pressure limiting valve 30 under the action of the guide surface, so that the push rod 21 avoids the push handle 31 and friction is prevented.

As shown in fig. 9 to 12, in the technical solution of the present embodiment, the pot cover body 11 includes an inner liner 111 and a face cover 112 disposed on the inner liner 111, and the inner pot cover 12 is disposed on the lower side of the inner liner 111. The inner liner 111 is provided with a mounting through hole 70, and the movable pressing plate 41 includes a connecting column 411 and a limiting piece 413. Wherein, the connecting column 411 is arranged in the mounting through hole 70 in a penetrating way, and a positioning convex edge 412 is arranged at the upper end of the connecting column 411. The limiting piece 413 is connected at the lower extreme of spliced pole 411, and location flange 412 and limiting piece 413 are located the both sides of inside lining 111 respectively, and the one end of piece 42 that resets is in butt with the lower surface of inside lining 111, and the other end and the limiting piece 413 butt of piece 42 that resets. Specifically, the upper and lower ends of the connection post 411 are respectively limited by a positioning flange 412 and a limiting piece 413.

As shown in fig. 12, in the technical solution of the present embodiment, a limiting piece 413 is detachably connected to the connection post 411 by a screw 414. The above structure facilitates the assembly of the movable platen 41.

As shown in fig. 1 to 8 and 11, in the technical solution of the present embodiment, a plug 44 is provided at an end of the ejector rod 43, and a guide surface is provided on the plug 44. The rear end portion of the push rod 21 is provided with a positioning plate 60, and the avoidance passage 50 is formed on the positioning plate 60, and the avoidance passage 50 includes a first avoidance passage 51 that is engaged with the plug 44 and a second avoidance passage 52 that is engaged with the jack 43. The upper end of the second avoidance through groove 52 is communicated with the first avoidance through groove 51, the lower end of the second avoidance through groove 52 penetrates through the lower end of the positioning plate 60, the ejector 44 pushes against the bottom end of the positioning plate 60 to enable the push rod 21 to move towards the direction deviating from the electromagnetic valve 20 in the process of mounting the inner pot cover 12 on the pot cover main body 11, and the ejector 44 and the ejector rod 43 are respectively embedded into the first avoidance through groove 51 and the second avoidance through groove 52 to prevent the interference of the ejector rod 43 and the movement track of the ejector 44 and the push rod 21. As shown in fig. 4, the top 44 moves upward when the inner lid 12 is mounted on the lid body 11. Since the plug 44 cannot be inserted into the second avoiding channel 52, the top side surface of the plug 44 is in contact with the lower surface of the positioning plate 60, and pushes the push rod 21 to move to the left to avoid the push handle 31. When the inner pot cover 12 is mounted on the pot cover main body 11, as shown in fig. 6 and 8, the plug 44 is aligned with the first avoiding through groove 51, the ejector rod 43 is aligned with the second avoiding through groove 52, at this time, the plug 44 and the ejector rod 43 are respectively embedded into the first avoiding through groove 51 and the second avoiding through groove 52, and the push rod 21 can normally move back and forth. When the inner pot cover 12 is taken down, the lower side surface of the plug 44 is in abutting fit with the lower surface of the first avoiding through groove 51. The movable platen 41 moves downward under the action of the return member 42, and at the same time, the push rod 21 is driven by the plug 44 to move leftward to avoid the push handle 31. The above structure makes it possible to make the push rod 21 avoid the push handle 31 when the inner lid 12 is mounted or dismounted, thereby reducing the probability of damage of the solenoid valve 20.

As shown in fig. 4, in the technical solution of the present embodiment, in the free state of the push rod 21, the distance from the center line of the plug 44 to the push handle 31 is smaller than the distance from the surface of the positioning plate 60 facing the pressure limiting valve 30 to the push handle 31. The above structure ensures that when the plug 44 moves up or down, the plug 44 can drive the positioning plate 60 to move in a direction away from the pressure limiting valve 30, and then drive the push rod 21 to move in a direction away from the push handle 31.

As shown in fig. 6, in the technical solution of the present embodiment, in the horizontal direction, the distance between the opposite groove walls of the first avoiding passage groove 51 is larger than the size of the plug 44, and the distance between the opposite groove walls of the second avoiding passage groove 52 is larger than the size of the ejector rod 43 and smaller than the size of the plug 44. The above structure makes the plug 44 unable to be embedded into the second avoiding through groove 52, so that when the plug 44 moves upward or downward, the plug 44 is in abutting engagement with the surface of the positioning plate 60 facing the pressure limiting valve 30, and drives the positioning plate 60 to move in a direction away from the pressure limiting valve 30.

Preferably, the plug 44 is spherical. The above structure makes the movement of the plug 44 smoother when it cooperates with the positioning plate 60.

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

Claims

1. An electric pressure cooker, comprising:

the cooker body is used for containing food to be cooked, and a heating device is arranged in the cooker body;

the pot cover (10) is arranged on the pot body, the pot cover (10) comprises a pot cover main body (11) and an inner pot cover (12) arranged on the pot cover main body (11), an electromagnetic valve (20) is arranged in the pot cover main body (11), a pressure limiting valve (30) is arranged on the inner pot cover (12), a pushing handle (31) is arranged on the outer side wall of the pressure limiting valve (30), and when the pot cover (10) is in a cover opening state, the electromagnetic valve (20) pushes the pushing handle (31) and enables the pressure limiting valve (30) to exhaust;

the guide structure is arranged between the inner pot cover (12) and the electromagnetic valve (20), the inner pot cover (12) is installed in the pot cover main body (11), the guide structure drives a push rod (21) of the electromagnetic valve (20) to move towards the direction deviating from the push handle (31) and avoid the push handle (31), and when the inner pot cover (12) is installed on the pot cover main body (11), the push rod (21) resets and is matched with the push handle (31);

the guide structure includes:

a movable platen (41) movably provided on the pot cover main body (11);

a reset piece (42) arranged between the movable pressing plate (41) and the pot cover main body (11), wherein the reset piece (42) applies an elastic force towards the pot body to the movable pressing plate (41);

the ejector rod (43) is arranged on the movable pressing plate (41) and extends towards the electromagnetic valve (20), and a guide surface is arranged on the ejector rod (43);

in the process of installing the inner pot cover (12) on the pot cover main body (11), the inner pot cover (12) props against the movable pressing plate (41) so as to enable the ejector rod (43) to be matched with the push rod (21).

2. The electric pressure cooker according to claim 1, characterized in that the push rod (21) is provided with an avoidance channel (50), and the guiding structure is embedded into the avoidance channel (50) when the inner cooker cover (12) is mounted on the cooker cover main body (11) so as to prevent the guiding structure from interfering with the movement of the push rod (21).

3. The electric pressure cooker according to claim 2, characterized in that the cooker cover main body (11) includes a liner (111) and a cover (112) provided on the liner (111), the inner cooker cover (12) is provided on the lower side of the liner (111), the liner (111) is provided with a mounting through hole (70), and the movable platen (41) includes:

the connecting column (411) is arranged in the mounting through hole (70) in a penetrating mode, and a positioning convex edge (412) is arranged at the upper end of the connecting column (411);

the limiting piece (413) is connected to the lower end of the connecting column (411), the positioning convex edge (412) and the limiting piece (413) are respectively positioned at two sides of the lining (111),

the resetting piece (42) is a spring, the resetting piece (42) is sleeved outside the connecting column (411), one end of the resetting piece (42) is abutted to the lower surface of the lining (111), and the other end of the resetting piece (42) is abutted to the limiting piece (413).

4. An electric pressure cooker according to claim 3, characterized in that the limit tab (413) is detachably connected to the connection post (411) by means of a screw (414).

5. The electric pressure cooker according to claim 2, characterized in that the end of the ejector rod (43) is provided with a top (44), the guide surface is arranged on the top (44), the rear end of the push rod (21) is provided with a positioning plate (60), the avoidance through groove (50) is formed on the positioning plate (60), the avoidance through groove (50) comprises a first avoidance through groove (51) matched with the top (44) and a second avoidance through groove (52) matched with the ejector rod (43), the upper end of the second avoidance through groove (52) is communicated with the first avoidance through groove (51), the lower end of the second avoidance through groove (52) penetrates through the lower end of the positioning plate (60), the inner pot cover (12) is installed in the process of the pot cover main body (11), the top (44) pushes against the bottom end of the positioning plate (60) so that the push rod (21) moves towards the direction deviating from the top (44), and the inner pot cover main body (21) is installed in the first electromagnetic valve (43) and the second electromagnetic valve (43) so as to prevent the first electromagnetic valve (43) from being embedded into the first electromagnetic valve (43) and the second electromagnetic valve (43).

6. The electric pressure cooker according to claim 5, characterized in that when the inner pot cover (12) is detached from the pot cover main body (11), the lower surface of the plug (44) abuts against the lower surface of the first avoidance through groove (51) to drive the push rod (21) to move in a direction away from the pressure limiting valve (30).

7. Electric pressure cooker according to claim 5, characterized in that, in the free state of the push rod (21), the distance from the centre line of the plug (44) to the push handle (31) is smaller than the distance from the surface of the positioning plate (60) facing the pressure limiting valve (30) to the push handle (31).

8. The electric pressure cooker according to claim 5, characterized in that the distance between the opposite groove walls of the first relief channel (51) is greater than the size of the header (44) in the horizontal direction, and the distance between the opposite groove walls of the second relief channel (52) is greater than the size of the ejector rod (43) and smaller than the size of the header (44).

9. An electric pressure cooker according to claim 5, characterized in that the plug (44) is spherical.