CN209995955U - electric pressure cooker - Google Patents

Abstract

The utility model discloses an electric pressure cooker, including the pot body and articulate the pot cover on the pot body, the pot cover is equipped with the locking mechanism with pot body locking, drive locking structure's controlling means and opens and shuts and cover the mechanism, and controlling means drive locking mechanism is at locking position and the switching of unblock position, it includes uncapping button, activity buckle and fixed buckle to open and shut cover the mechanism, and uncapping button drive activity buckle action is in order to break away from fixed buckle, and the mechanism of opening and shutting still includes the electromagnetism actuation subassembly, and the electromagnetism actuation subassembly has circular telegram actuation state and closed off-electricity separation state, and locking mechanism is located the locking position, and the electromagnetism actuation subassembly gets into circular telegram actuation state in order to prevent the pot cover to open, and locking mechanism is located the unblock position, and the electromagnetism actuation subassembly gets into closed-electricity separation state in order to open the pot cover.

Description

electric pressure cooker

Technical Field

The utility model belongs to the technical field of kitchen appliance, especially, relate to kinds of electric pressure cookers.

Background

The electric pressure cooker comprises a cooker body and a cooker cover, wherein the cooker cover comprises a shifting fork piece and a lock cover, and the shifting fork piece drives the lock cover to switch between a locking position and an unlocking position of the lock cover and the cooker body. When the locking cover is locked with the pot body, the electric pressure cooker can cook, and when the locking cover is unlocked with the pot body, the pot cover can be opened. Because the electric pressure cooker can form high-temperature and high-pressure environment in the cooking cavity when cooking, if the pot cover is opened due to reasons such as failure of parts and the like in the cooking process or when the electric pressure cooker is not completely decompressed, great potential safety hazard can be generated, and an opening stopping structure needs to be arranged on the electric pressure cooker to avoid the phenomenon.

The opening stopping structure of pressure cookers in the market at present has the problems that if the limit ejector rod is aged and damaged or the limit ejector rod cannot be jacked due to other reasons, and no prompt signal is provided to inform a user that the opening stopping structure is damaged, a cooker cover can be opened to cause a safety accident in a cooking process or in an incomplete pressure relief state, in addition, for the inspection of a production line of the opening stopping structure of the pressure cooker, long-time water boiling in the pressure cooker is needed to reach the pressure required by the limit ejector rod to float upwards, the verification can be completed, and the production efficiency is greatly reduced by the verification mode.

In addition, there are kinds of electric pressure cookers on the market, in which the opening stopping device includes an opening stopping rod on the inner cooker cover and a sliding plate structure matching with the opening stopping rod, the movement of the sliding plate structure is controlled by the arm on the rotating rod and other transmission mechanism, the structure of the opening stopping device has many parts and is complex.

It can be seen that the prior art is susceptible to improvements and enhancements.

SUMMERY OF THE UTILITY MODEL

The utility model provides electric pressure cookers, which solves at least electric pressure cookers in the technical problem.

The utility model discloses the technical scheme who adopts does:

electric pressure cooker comprises a cooker body and a cooker cover hinged on the cooker body, wherein the cooker cover is provided with a locking mechanism locked with the cooker body, a control device for driving the locking mechanism and a cover opening and closing mechanism, the control device drives the locking mechanism to switch between a locking position and an unlocking position, the cover opening and closing mechanism comprises a cover opening button, movable buckles arranged on the cooker body or the cooker cover and fixed buckles arranged on the cooker body or the cooker cover, the cover opening button drives the movable buckles to move so as to be separated from the fixed buckles, the cover opening and closing mechanism further comprises an electromagnetic attraction component, the electromagnetic attraction component has an electrified attraction state and a power-off separation state, the locking mechanism is located at the locking position, the electromagnetic attraction component enters the electrified attraction state to prevent the cooker cover from being opened, and the locking mechanism is located at the unlocking position, and the electromagnetic attraction component enters the power-off separation state to open the cooker cover.

Under the pressure state, the electromagnetic attraction component enters the electrified attraction state to prevent the cooker cover from opening.

The electromagnetic attraction assembly comprises electromagnetic chucks arranged on the movable buckles or the fixed buckles and magnetic blocks arranged on the movable buckles or the fixed buckles, the locking mechanism is located at the locking position, the electromagnetic chucks are electrified to generate magnetic force and attract the magnetic blocks to prevent the pot cover from being opened, and the locking mechanism is located at the unlocking position, the electromagnetic chucks are powered off to open the pot cover.

The locking mechanism comprises calipers, the pot body is provided with a clamping part matched with the calipers, the pot cover and the pot body are locked and unlocked through the calipers and the clamping part, and the control device is used for controlling the calipers to move along the direction vertical to the axial direction of the pot body; or the locking mechanism comprises a locking cover, cover teeth are arranged on the locking cover, pot teeth are arranged on the pot body, locking and unlocking of the pot body and the pot cover are achieved through the cover teeth and the pot teeth, and the control device is used for driving the locking cover to rotate.

The control device comprises a shifting fork piece, the shifting fork piece is provided with a th station corresponding to the locking position of the cooker cover and a second station corresponding to the unlocking position of the cooker cover, the electric pressure cooker further comprises a control part, the control part controls the electromagnetic attraction component to be powered on or powered off, the electric pressure cooker further comprises a detection structure used for detecting the position of the shifting fork piece, when the shifting fork piece is located at the th station, the detection structure sends an electric signal to the control part, the control part controls the electromagnetic attraction component to be powered on, when the shifting fork piece is located at the second station, the detection structure sends an electric signal to the control part when the detection structure detects that the shifting fork piece is located at the second station, and the control part controls the electromagnetic attraction component to be powered off.

The detection structure comprises a permanent magnet and a magnetic sensitive switch, the permanent magnet is installed on the pot cover and extends along the rotation direction of the shifting fork piece, the magnetic sensitive switch is installed on the shifting fork piece, when the shifting fork piece is located at the th work station, the magnetic sensitive switch is located in the magnetic force range of the permanent magnet, and when the shifting fork piece is located at the second work station, the magnetic sensitive switch is separated from the magnetic force induction range of the permanent magnet.

The magnetic sensitive switch is a reed switch.

The section of the permanent magnet is arc-shaped and is concentric with the rotating shaft of the shifting fork piece.

The control device comprises a motor, an output shaft of the motor is perpendicular to the rotating direction of the shifting fork piece, a driving gear is arranged on the output shaft of the motor, the shifting fork piece is provided with a transmission gear part meshed with the driving gear, and the driving gear drives the transmission gear part to drive the shifting fork piece to rotate.

The control device comprises a handle which is arranged on the pot cover and can move circumferentially, the handle is connected with the shifting fork piece or the lock cover, and the handle is rotated to drive the shifting fork piece or the lock cover to rotate.

Since the technical scheme is used, the utility model discloses the beneficial effect who gains does:

1. the utility model discloses a set up electromagnetic attraction subassembly to guarantee when locking mechanism is located the closure position, electromagnetic attraction subassembly can get into circular telegram actuation state and be opened in order to prevent the pot cover, avoided the user hidden danger such as scald that causes of uncapping suddenly, greatly reduced user's injury coefficient.

2. To the utility model discloses the line inspection of producing of only opening the efficiency the utility model discloses a complete machine assembling process can realize, and in the complete machine assembling process, the measurement personnel can pass through whether there is not embedding or there is embedding defects such as unusual in opening and shutting cover mechanism comes direct inspection calliper or locking closure to improve detection efficiency, improve shipment quality.

3. The utility model discloses a permanent magnet and tongue tube mutually support the operating position who detects shifting fork spare to control division signal transmission, again by control division through this signal control the circular telegram or the outage of electromagnetism actuation subassembly. Compared with other mechanical switches, the permanent magnet and the reed switch are matched, so that the structure is simple, the size is small, and the service life is long; compared with an electronic switch, the reed switch has strong load impact resistance and high working reliability, and the reed switch has the advantages that the inside encapsulation of the reed switch is filled with inert gas or vacuum glass tubes, and the reed switch is particularly suitable for high-temperature and high-pressure products of the electric pressure cooker.

4. Compare in the structure of switching on, cutting off the power supply through mechanical transmission's mode in order to trigger electromagnet among the prior art, the utility model discloses a signal control electromagnet switches on and off the power supply, and not only the response is more timely, has saved the increase that the manufacturing procedure and the assembly process that need bring in setting up corresponding mechanical transmission part in the pot cover moreover, the utility model discloses a structure is simpler, and the assembly is also more convenient to production efficiency has been improved.

5. The utility model discloses the rotation of well shift fork spare both can realize through manual drive, also can realize through motor drive to can be applied to different products, in order to satisfy different consumers' application demand.

6. The utility model discloses an electromagnet produces or eliminates the interact with the magnetic block, compares in other magnetism suction structure, the utility model discloses an electromagnet, its holding power is big, and magnetic force distributes evenly, and magnetic force is adjustable, and electromagnet can continuous use, and the life-span is more lasting, in addition, electromagnet's electromagnetism possesses and releases fast to efficiency has been improved greatly.

Drawings

The accompanying drawings, which are incorporated herein and constitute part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of the invention, illustrate embodiments of the invention and together with the description, serve to explain the invention and not to unduly limit the invention, and in which:

fig. 1 is an exploded schematic view of each part of the pot cover and the pot body in embodiment 1 of the present invention.

Fig. 2 is a schematic view of a relative position relationship between each component on the liner in the state of opening the cover in embodiment 1 of the present invention.

Fig. 3 is a structural view of the opening/closing cover mechanism according to embodiment 1 of the present invention.

Fig. 4 is a schematic view of the relative position relationship between the parts on the liner when the electric pressure cooker in embodiment 1 of the present invention is in the cooking process or has not been fully decompressed.

Fig. 5 is an axonometric view of the relative position relationship of each part on the liner in the state of uncapping in embodiment 1 of the present invention.

Fig. 6 is an exploded view of the liner and various parts of the liner according to embodiment 1 of the present invention.

Wherein the content of the first and second substances,

1. upper cover 2, lining 21, guide limit column 3, inner cover 4, pot body 5, shifting fork piece 51, shifting fork disc body 52, shifting fork groove 521, th groove area 522, second groove area 53, sliding groove 54, transmission gear part 6, caliper 61, caliper bracket 62, caliper clamp 63, guide sliding groove 64, linkage rod 7, dry reed pipe 8, permanent magnet 9, exhaust ejector rod 10, motor 11, driving gear 12, electromagnetic chuck 13, cover opening button 14, movable buckle 15, fixed buckle 16 and magnetic block

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present application, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like shall be construed , for example, as being fixedly connected, detachably connected, or in a body, mechanically connected, electrically connected, communicating, directly connected, indirectly connected through an intermediary, communicating between two elements, or interacting between two elements.

In the description herein, reference to the description of the terms " embodiments", " embodiments", "examples", "specific examples", or " examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least embodiments or examples of the invention.

Example 1:

as shown in fig. 1 to 6, kinds of electric pressure cookers comprise a cooker body 4 and a cooker cover hinged on the cooker body 4.

The electric pressure cooker comprises a cooker cover and a control device, wherein the cooker cover comprises an upper cover 1, an inner liner 2 and an inner cover 3, a locking mechanism locked with the cooker body 4 is arranged on the inner liner 2, the electric pressure cooker further comprises the control device used for driving the locking mechanism, and the control device is used for driving the locking mechanism to switch between a locking position and an unlocking position.

The utility model discloses in, locking mechanism includes calliper 6, the pot body 4 have with the joint portion of calliper 6 looks adaptation, through calliper 6 and joint portion realize the closure and the unblock of the pot cover with pot body 4, controlling means is used for control calliper 6 is along the perpendicular to the axial direction of the pot body 4 removes the utility model discloses in, controlling means includes fork 5, fork 5 have with the corresponding stations in the closure position of pot cover, and with the corresponding second station in the unblock position of pot cover.

Specifically, as shown in fig. 1, 5 and 6, in the present embodiment, there are two calipers 6, and the two calipers 6 are symmetrically arranged along the center line of the liner 2, and each caliper 6 includes a caliper bracket 61 and a caliper clip 62 mounted on the caliper bracket 61 and adapted to the clamping portion on the pot body 4.

More specifically, the caliper bracket 61 has at least guiding sliding grooves 63, and the lining 2 is provided with guiding limiting posts 21 opposite to and matched with the guiding sliding grooves 63 to prevent the caliper 6 from deviating during moving, preferably, in the embodiment, the caliper bracket 61 has a substantially T-shaped upper member, the substantially T-shaped upper member enables the whole caliper bracket 61 to be more miniaturized in aspect, the installation space is saved, the interference between the caliper bracket and other parts on the lining 2 is reduced, in addition, in aspect, the linkage between the caliper bracket 61 and the shifting fork 5 is facilitated, and the guiding sliding grooves 63 and the guiding limiting posts 21 respectively have three-point positioning structures to match the shape of the caliper bracket 61, so that the stability of the movement of the caliper 6 is increased.

Of course, in the present invention, the positions of the guiding sliding grooves 63 and the guiding position-limiting posts 21 are not limited to the above-mentioned example, but may be reversed, the lining 2 has at least guiding sliding grooves, and the caliper bracket 61 is provided with guiding position-limiting posts which are opposite to the guiding sliding grooves and are matched with each other.

As shown in fig. 2, 4, 5 and 6, the fork member 5 includes a fork disc body 51, two fork grooves 52 are symmetrically disposed on the fork disc body 51 along the center of the fork disc body, each fork groove 52 is a special fork groove, each fork groove 52 includes a th groove area 521 corresponding to the effective movement stroke of the caliper 6 (the effective movement stroke of the caliper corresponds to the process of switching from the locked position to the unlocked position) and a 522 second groove area corresponding to the virtual displacement of the caliper (the virtual displacement of the caliper corresponds to the locking position of the lid), the th groove area 521 and the 522 are communicated, the electric pressure cooker further includes an exhaust push rod 9, a sliding groove 53 adapted to the exhaust push rod 9 is disposed on the fork disc body 51, the sliding groove 53 is also divided into two groove areas, for convenience of description, the two groove areas are defined as a third groove area and a fourth groove area, the third groove area corresponds to the open state of the lid, the fourth groove area corresponds to the locked state of the electric pressure cooker lid , and the pressure relief groove area is located at the available end of the push rod .

In this embodiment, as shown in fig. 6, the control device for driving the locking mechanism to switch between the locking position and the unlocking position includes a motor 10, a driving gear 11 is disposed on an output shaft of the motor 10, a transmission gear 54 engaged with the driving gear 11 is disposed on at least a partial region of an outer edge of the shifting fork disc body 51, and the driving gear 11 drives the transmission gear 54 to drive the shifting fork 5 to rotate. Preferably, in this embodiment, the output shaft of the motor 10 is perpendicular to the rotation direction of the fork 5, so that the number of transmission parts is reduced, the installation space is saved, and the transmission efficiency is improved.

As shown in fig. 1, 5 and 6, the caliper bracket 61 has a linkage rod 64 adapted to the fork groove 52, an end of the linkage rod 64 is fixedly connected to the caliper bracket 61, and another end extends into the fork groove 52. during the rotation of the fork disc body 51, the linkage rod 64 moves along the direction perpendicular to the axis of the pot body 4 under the traction of the inner wall of the fork groove 52, when the two calipers 6 move towards each other, the locking of the pot cover is gradually realized, and when the two calipers 6 move away from each other, the unlocking of the pot cover is gradually realized.

The utility model discloses an in the assembling process, the measurement personnel can the visual observation calliper 6 whether can imbed in place to avoid calliper 6 to appear foretell empty problem of keeping away, improve the qualification rate of product.

The electric pressure cooker also comprises a cover opening and closing mechanism, wherein the cover opening and closing mechanism comprises a cover opening button 13, movable buckles 14 and fixed buckles 15, the movable buckles 14 are arranged on of the cooker body 4 or the cooker cover, the fixed buckles 15 are arranged on the other of the cooker body 4 or the cooker cover, the cover opening button 13 drives the movable buckles 14 to move so as to be separated from the fixed buckles 15, in the embodiment, as shown in fig. 3, the movable buckles 14 are arranged on the cooker body 4, and the fixed buckles 15 are arranged on the cooker cover, so that the operation habit of a user can be better met.

In the practical application process, when the electric pressure cooker is heated and pressed upwards, if the calipers 6 are not completely embedded into the clamping part of the pot body 4, in the upward pressing process of the pressure cooker, along with the increase of the air pressure in the inner container, the inner cover 3 moves upwards to cause the calipers 6 which are not embedded in place to be forced to be lifted, the limit of the clamping part is lost, the calipers 6 are in a clearance state, if a user suddenly presses the cover opening button 13 at the moment, the phenomenon that the user is scalded is easy to occur when the pot cover is suddenly opened, therefore, in order to avoid the phenomenon, the electromagnetic attraction component is arranged, when the pot cover is in the locking position, the movable buckle 14 can be kept at the position matched with the fixed buckle 15 in a clamping mode, and a user can not open the pot cover by pressing the cover opening button 13, so that the pot cover is prevented from being opened, and accidents are avoided.

In the utility model, the electromagnetic attraction component has an electrified attraction state and a power-off separation state; the locking mechanism is positioned at the locking position, and the electromagnetic attraction component enters an electrified attraction state to prevent the cooker cover from being opened; the locking mechanism is positioned at the unlocking position, and the electromagnetic attraction component enters an electricity-off separation state to open the pot cover. Under the pressure state, the electromagnetic attraction component enters the electrified attraction state to prevent the cooker cover from opening.

As shown in fig. 3, the electromagnetic attraction assembly comprises electromagnetic suction cups 12 arranged on the movable buckle 14 or the fixed buckle 15, and magnetic blocks 16 arranged on the other of the movable buckle 14 or the fixed buckle 15, a locking mechanism is positioned at a locking position, the electromagnetic suction cups 12 are electrified to generate magnetic force and attract the magnetic blocks 16 to prevent the pot cover from being opened, and the locking mechanism is positioned at an unlocking position, the electromagnetic suction cups 12 are powered off to open the pot cover.

In order to facilitate wiring, in this embodiment, as shown in fig. 3, the electromagnetic chuck 12 is disposed at the fixed buckle 15, and the magnetic block 16 is disposed at the movable buckle 14, it should be noted that, in the present invention, the magnetic block 16 may be a separate piece that is fixedly connected to the movable buckle 14 and is made of a magnetic material, or a magnetic layer coated with a magnetic material may be disposed on the surface of the movable buckle 14 facing the electromagnetic chuck 12, or the movable buckle 14 itself may be made of a magnetic material.

When the shifting fork piece 5 is positioned at a second station, the detection structure detects that the shifting fork piece 5 is positioned at the second station, the detection structure sends an electric signal to the control part, the control part controls the electromagnetic chuck 12 to be electrified, the electromagnetic chuck 12 is electrified to generate magnetic force and attract the magnetic block 16 to generate adsorption force capable of blocking the cover opening, when the shifting fork piece 5 is positioned at the second station, the detection structure sends an electric signal to the control part, the control part controls the electromagnetic chuck 12 to be powered off, the magnetic force of the electromagnetic chuck 12 disappears, and a user can open the cover by pressing the cover opening button 13.

It should be noted that the " th station" and the "second station" may refer to fixed points, that is, fixed points, or regions, in this embodiment, preferably, the " th station" refers to regions corresponding to the range of movement of the fork 5 when the caliper 6 is in the second groove area 522, and the "second station" refers to regions corresponding to the range of movement of the fork 5 when the caliper 6 is in the groove area 521.

The utility model discloses in, detect the structure can be electronic switch such as position sensor, proximity switch, through this type of electronic switch to the control part sends the position signal of shifting fork spare, and the control part receives these signals and according to received signal, controls electromagnet circular telegram or outage.

Preferably, in this embodiment, as shown in fig. 2, 4 and 5, the detecting structure includes a permanent magnet 8 and a magnetic sensitive switch, the magnetic sensitive switch is mounted on the fork and rotates synchronously with the fork, and steps further, the magnetic sensitive switch is a reed switch 7, which has a strong load impact resistance and high operational reliability compared with other electronic switches, the permanent magnet 8 is mounted on the liner 2 and extends along the rotation direction of the fork 5, and the section of the permanent magnet 8 is preferably in a regular arc shape so as to easily control the magnetic force range and is concentric with the rotation shaft of the fork 5 so as to ensure that the magnetic sensitive switch has a closing stroke and an opening stroke during the rotation.

As shown in fig. 4, when the electric pressure cooker is in stewing or is not completely decompressed, the caliper 6 is located in the second groove area 522, the shifting fork 5 is located at the th work position, the reed pipe 7 is located within the magnetic force range of the permanent magnet 8, the metal reed contacts in the reed pipe 7 are combined and send signals to the control part, and the control part controls the electromagnetic chuck 12 to be electrified to have magnetic force, so that the electromagnetic chuck is attracted to the magnetic block 16, and the opening stopping effect is achieved.

Additionally, the electric pressure cooker in the utility model provides a can also set up warning unit, warning unit can be display panel or bee calling organ, works as the tongue tube detects when the shifting fork spare is in the th station, the control part to warning unit signals reminds the user can not uncap this moment.

As shown in fig. 2, when the pressure relief of the electric pressure cooker is completed or the electric pressure cooker is not used, when the shifting fork 5 is located at the second station, the reed switch 7 is separated from the magnetic force induction range of the permanent magnet 8, the metal reed contact in the reed switch 7 is disconnected, the control part controls the electromagnetic chuck 12 to be powered off, the magnetic force disappears, the action of the cover opening button cannot be prevented, the user presses the cover opening button 13, the movable buckle 14 is separated from the fixed buckle 15, and the cover can be opened directly.

Example 2:

in this embodiment the locking mechanism does not adopt embodiment 1 the mode that matches of shifting fork spare 5 and calliper 6, in this embodiment, locking mechanism includes the locking closure, be equipped with the lid tooth on the locking closure, be equipped with pot tooth on the pot body, through lid tooth and pot tooth realize the pot body with the closure and the unblock of pot cover, controlling means is used for the drive the locking closure rotates.

The detecting structure in this embodiment may determine the position of the locking cover by detecting the rotation angle of the locking cover, and thus, the detecting structure may be an angle sensor. The angle sensor can transmit the detected signal to the control part, and the control part controls the electromagnetic chuck to be powered on or powered off according to the received signal.

Example 3:

this embodiment is basically the same in structure and principle as embodiment 1 and embodiment 2, except that,

the rotation of the fork or the lock cover in this embodiment is not controlled by a motor but is controlled manually. Specifically, the control device comprises a handle which is arranged on the pot cover and can move circumferentially, the handle is connected with the shifting fork piece or the lock cover, and the handle is rotated to drive the shifting fork piece or the lock cover to rotate.

The utility model can be realized by adopting or using the prior art for reference in places which are not mentioned in the utility model.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1, electric pressure cooker, including the pan body, and articulate the pot cover on the pan body, the said pot cover has locking mechanism, controlling device to drive locking mechanism and open and close the cover mechanism locked with the pan body, the controlling device drives the locking mechanism to switch in locking position and unlocking position, the said open and close the cover mechanism includes the button of uncapping, activity buckle set up on among pan body or pot cover, fix buckle set up on another of pan body or pot cover, uncapping button drive activity buckle act in order to break away from fixed buckle, characterized by that, the said open and close cover mechanism also includes the electromagnetic suction assembly, the said electromagnetic suction assembly has closing state and closing the electric separation state, the locking mechanism is located in locking position, the electromagnetic suction assembly enters the closing state of the electricity in order to prevent the pot cover from opening, the locking mechanism is located in unlocking position, the electromagnetic suction assembly enters the closing electric separation state in order to open the pot cover.

2. electric pressure cooker according to claim 1,

under the pressure state, the electromagnetic attraction component enters the electrified attraction state to prevent the cooker cover from opening.

3. electric pressure cooker according to claim 1,

the electromagnetic attraction component comprises electromagnetic suckers arranged on the movable buckle or the fixed buckle, and magnetic blocks arranged on the other movable buckle or fixed buckle;

the locking mechanism is positioned at a locking position, and the electromagnetic chuck is electrified to generate magnetic force and is attracted with the magnetic block to prevent the pot cover from being opened; the locking mechanism is located at the unlocking position, and the electromagnetic chuck is powered off to open the pot cover.

4. electric pressure cooker according to claim 1,

the locking mechanism comprises calipers, the pot body is provided with a clamping part matched with the calipers, the pot cover and the pot body are locked and unlocked through the calipers and the clamping part, and the control device is used for controlling the calipers to move along the direction vertical to the axial direction of the pot body;

or the locking mechanism comprises a locking cover, cover teeth are arranged on the locking cover, pot teeth are arranged on the pot body, locking and unlocking of the pot body and the pot cover are achieved through the cover teeth and the pot teeth, and the control device is used for driving the locking cover to rotate.

5. electric pressure cooker according to claim 4,

the control device comprises a shifting fork, and the shifting fork is provided with an th work station corresponding to the locking position of the pot cover and a second work station corresponding to the unlocking position of the pot cover;

the electric pressure cooker also comprises a control part, wherein the control part controls the power-on or power-off of the electromagnetic attraction component;

the electric pressure cooker further comprises a detection structure for detecting the position of the shifting fork piece, when the shifting fork piece is located at the th work station, the detection structure sends an electric signal to the control part, the control part controls the electromagnetic attraction component to be electrified, when the shifting fork piece is located at the second work station, the detection structure sends an electric signal to the control part when the detection structure detects that the shifting fork piece is located at the second work station, and the control part controls the electromagnetic attraction component to be powered off.

6. electric pressure cooker according to claim 5,

the detection structure comprises a permanent magnet and a magnetic sensitive switch, the permanent magnet is arranged on the pot cover and extends along the rotation direction of the shifting fork piece, and the magnetic sensitive switch is arranged on the shifting fork piece;

when the shifting fork piece is positioned at the th work position, the magnetic sensitive switch is positioned in the magnetic force range of the permanent magnet, and when the shifting fork piece is positioned at the second work position, the magnetic sensitive switch is separated from the magnetic force induction range of the permanent magnet.

7. electric pressure cooker according to claim 6,

the magnetic sensitive switch is a reed switch.

8. electric pressure cooker according to claim 6,

the section of the permanent magnet is arc-shaped and is concentric with the rotating shaft of the shifting fork piece.

9. electric pressure cooker according to claim 5,

the control device comprises a motor, an output shaft of the motor is perpendicular to the rotating direction of the shifting fork piece, a driving gear is arranged on the output shaft of the motor, the shifting fork piece is provided with a transmission gear part meshed with the driving gear, and the driving gear drives the transmission gear part to drive the shifting fork piece to rotate.

10. electric pressure cooker according to claim 5,

the control device comprises a handle which is arranged on the pot cover and can move circumferentially, the handle is connected with the shifting fork piece or the lock cover, and the handle is rotated to drive the shifting fork piece or the lock cover to rotate.

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