CN113491437B

CN113491437B - Electric pressure cooker

Info

Publication number: CN113491437B
Application number: CN202010267105.9A
Authority: CN
Inventors: 朱泽春; 简威; 张根森
Original assignee: Joyoung Co Ltd
Current assignee: Joyoung Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2022-06-17
Anticipated expiration: 2040-04-08
Also published as: CN113491437A

Abstract

The invention provides an electric pressure cooker, which comprises a cooker cover and a cooker body, wherein the cooker cover is provided with an outer cover and a locking piece arranged on the outer cover, the locking piece can rotate relative to the outer cover, the locking piece moves between an unlocking position and a locking position to realize the unlocking and locking of the cooker cover and the cooker body, an upper coupler and a lower coupler are inserted between the cooker cover and the cooker body up and down, the upper coupler is movably arranged on the outer cover, and the lower coupler is arranged on the cooker body; the cooker cover is provided with an actuating piece moving between an unlocking position and a locking position and an actuating structure controlled by the actuating piece; the upper coupler is electrically connected with the lower coupler under the locking position; when the actuating piece moves to the unlocking position, the actuating structure is controlled to enable the upper coupler to float upwards so as to be separated from the electrical connection with the lower coupler. The actuating structure can actively exert a force by the unlocking action in the process of locking to the unlocking position, so that the upper coupler can be effectively reset, the upper coupler can be completely reset, and the bending of the PIN needle cannot be aggravated by the uncovering action.

Description

Electric pressure cooker

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to an electric pressure cooker.

Background

At present, for electric pressure cooker, there are two kinds of accuse pressure mode generally, the first is for using pressure switch accuse pressure, this pressure switch sets up the bottom at the pot body, close the lid back, the closure structure hasp of pot cover is on the heat preservation of the pot body covers, the inner bag has been placed to the heat preservation cover inboard, when there is pressure in the pot, the inner bag pressurized can be down slight deformation, promote the dish that generates heat and move down, thereby make the dish spring produce elastic deformation, the dish spring contacts with the pressure switch ejector pin, when reaching certain pressure, the ejector pin is flicked pressure switch, and pressure switch and the dish series connection that generates heat, thereby the disconnection heating, reach the purpose of control pressure. The other uses top temperature measurement to control the internal temperature, at the moment, the locking structure of the cooker cover can be locked on the heat insulation cover or arranged on the inner container, and the temperature and the pressure have a certain corresponding relation, thereby achieving the purpose of controlling the pressure. When the hasp is on the inner bag, go up and press the back, the inner bag also can not make the structure of bottom produce elastic deformation, in addition, the IH drum that heats through the electromagnetism can not the pressurized, easy breakage, so generally press the form at the accuse of top temperature measurement, can realize the IH heating, use IH electromagnetic heating technique more even than ordinary dish heating that generates heat, the effect is better, experience better.

The existing products such as the electric pressure cooker and the like all have a cooker cover structure, generally have two connection modes, namely a split type and a conjoined mode, because the split type electric pressure cooker is not powered on, the possibility of measuring the temperature at the top is not provided, the bottom pressure control is mostly adopted, the heat preservation cover is generally locked in a locking mode, and the inner container is not locked, so that the heating plate is mostly used for heating. The conjoined electric pressure cooker has the advantages that the cooker cover is convenient to supply power, the possibility of top temperature control is realized, the top pressure control can be realized, and when the cooker cover is locked, the heat-insulating cover and the inner container can be locked; the heating plate can be adopted, and IH heating can also be adopted.

In order to realize the top pressure control of the split electric pressure cooker, some electric pressure cookers are provided with two types of electric connectors between a cooker cover and a cooker body, so that the power supply of the split cooker cover is realized, one type of electric connector is a wireless type, and the connector module has the disadvantages of high cost, low power supply efficiency, troublesome signal transmission and poor reliability; the other is a coupling type connector module, the connector module has the advantages of high cost advantage and reliable connection, and reliable communication and power supply can be realized as long as internal contact PINs (PIN PINs) are completely butted.

The coupling type is generally an up-down coupling type and a circumferential coupling type, the electric pressure cooker not only has the opening and closing actions of the cooker cover, but also has the locking action of the lock catch, generally, for the sake of safety, the electric pressure cooker is ensured to start cooking and up-pressing after the two actions are both completed, otherwise, the risk of frying the cooker under high pressure is easy to occur, therefore, the electric pressure cooker needs to be associated with a locking structure when power is supplied through a coupler regardless of the up-down type or the circumferential type; when the locking structure of the electric pressure cooker completes the locking action, the impact force is too large for the circumferential coupling type plugging mode, so the service life is more difficult to control; the movable design of the upper-lower coupling type and the upper coupler is easy to overcome the impact; the upper coupler is movably arranged, and the locking structure controls the upper coupler and the lower coupler to be electrically connected after being locked, so that the service life of the couplers can be effectively ensured; but also bring a problem simultaneously, because the people can not follow vertical direction translation completely when uncapping, so the in-process of upper and lower coupling formula pot cover opening sprains the contact pin easily, leads to the deformation, and then can't accomplish the power supply.

Disclosure of Invention

The invention aims to provide an electric pressure cooker to solve the problem that the electric pressure cooker with a coupler damages the coupler when a cooker cover is opened.

The invention provides an electric pressure cooker, which comprises a cooker cover and a cooker body, wherein the cooker cover is provided with an outer cover and a locking piece arranged on the outer cover, the locking piece can rotate relative to the outer cover, the locking piece moves between an unlocking position and a locking position to realize the unlocking and locking of the cooker cover and the cooker body, a coupler is arranged between the cooker cover and the cooker body, the coupler comprises an upper coupler and a lower coupler which are inserted up and down, the upper coupler is movably arranged on the outer cover, and the lower coupler is arranged on the cooker body; the pot cover is provided with an actuating piece moving between an unlocking position and a locking position and an actuating structure controlled by the actuating piece; under the locking position, the upper coupler is electrically connected with the lower coupler; and when the actuating piece moves to the unlocking position, the actuating structure is controlled to enable the upper coupler to float upwards so as to be separated from the electrical connection with the lower coupler.

Preferably, the actuation structure is movably disposed on the outer cover.

Preferably, the actuating structure is provided on the actuating member for synchronous movement with the actuating member.

Preferably, a matching structure is arranged on the upper coupler, and the actuating structure controls the action of the upper coupler through the matching structure.

Preferably, the actuating structure is a sliding groove formed on the actuating member; or, the actuating structure is a guide rail disposed on the actuating member.

Preferably, in the locked position, the actuator electrically connects the upper coupler to the lower coupler.

Preferably, in the locked position, the actuating structure electrically connects the upper coupler with the lower coupler.

Preferably, the actuating structure is a push rod arranged on the outer cover, and the push rod is rotatably arranged on the outer cover through a rotating shaft; one end of the ejector rod is matched with the upper coupler; when the actuating piece moves to the unlocking position, the actuating piece enables the ejector rod to rotate around the rotating shaft, and therefore the upper coupler floats upwards.

Preferably, the rotating shaft is provided with a torsion spring, and when the actuating piece is disengaged from acting on the ejector rod, the torsion spring enables the ejector rod to rotate so as to electrically connect the upper coupler and the lower coupler.

Preferably, the actuating member has a guide portion and a stopper portion, the upper coupler is stopped at a predetermined position of the outer cover when the upper coupler is located at the stopper portion, and the upper coupler changes the predetermined position by the guide portion.

Has the advantages that:

through the arrangement of the actuating structure, in the process of locking the position to the unlocking position, the unlocking action actively exerts a force to promote the upper coupler to be effectively reset, so that the upper coupler can be completely reset, and the bending of the PIN needle cannot be aggravated under the action of opening the cover.

More beneficial effects of the invention compared with the prior art are detailed in the specific implementation mode.

Drawings

FIG. 1 is a schematic view of an electric pressure cooker according to an embodiment of the present invention;

FIG. 2 is a schematic view of a lock cover in an unlocked position in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a coupler with a locking cover in an unlocked position in accordance with an embodiment of the present invention;

FIG. 4 is a schematic view of a lock cover in a locked position in accordance with an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a coupler with a locking cover in a locked position in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of a limiting post on a pot body according to an embodiment of the present invention;

FIG. 7 is a schematic view of a limiting hole on a lid according to an embodiment of the present invention;

fig. 8 is a partially enlarged schematic view of a coupler according to a first embodiment of the present invention.

Fig. 9 is a schematic view of the structure of the actuating member and the slide groove according to the first embodiment of the present invention.

FIG. 10 is a diagram of an upper coupler according to an embodiment of the present invention.

Fig. 11 is a perspective view of the locking cover in a rotation-stopping state when the pot cover is separated from the pot body according to the first embodiment of the present invention.

Fig. 12 is a cross-sectional view of the locking cover in a rotation-stopping state when the pot cover is separated from the pot body according to the first embodiment of the present invention.

Fig. 13 is a perspective view showing the locking cover in a rotatable state when the pot cover is covered on the pot body according to the first embodiment of the present invention.

Fig. 14 is a sectional view showing the locking cover in a rotation-stopping state when the pot cover is detached from the pot body according to the first embodiment of the present invention.

Figure 15 is a cross-sectional view of a pot cover according to a first embodiment of the present invention.

FIG. 16 is a schematic view of a third actuator and a rod according to an embodiment of the present invention.

FIG. 17 is a schematic view of a third actuator moving from a locked position to an unlocked position according to an embodiment of the present invention.

FIG. 18 is a schematic view of a third actuator moving from an unlocked position to a locked position according to an embodiment of the present invention.

FIG. 19 is a schematic diagram of a third ejector pin according to an embodiment of the present invention.

Fig. 20 is a perspective view of a third upper coupler according to an embodiment of the present invention.

Indexing:

100 pan body, 101 locking structure, 102 spacing post.

200 pot covers, 201 outer covers, 202 lock covers, 203 locking structures, 204 actuating pieces, 205 limit holes, 206 guide parts, 207 limit parts, 208 ejector rods, 209 raising rods, 210 rotation stopping structures, 211 rotation stopping holes, 212 rotation stopping parts, 213 floating rods, 214 handles, 215 screws, 216 support steps, 217 support platforms, 218 sliding grooves, 219 horizontal section sliding grooves, 220 inclined section sliding grooves, 221 gaps, 222 rotating shafts and 227 reset springs.

300 coupler, 301 lower coupler, 302 upper coupler, 303 connector body, 305 pins, 306 jacks, 307 fixing lugs, 308 fixing protrusions, 309 fixing columns, 310 protrusions, 312 sliding buckles, 313 upper limiting parts and 314 matching parts.

400 of inner container.

71 a first stop platform, 72 a second stop platform.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.

Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.

The first embodiment is as follows:

as shown in fig. 1, the electric pressure cooker comprises a cover 200, an inner container 400 and a cooker body 100, wherein the cover 200 is covered on the cooker body 100 in a completely detachable manner, so-called completely detachable, that is, the cover 200 can be completely removed from the cooker body 100, and when needed, the cover 200 is washed, or placed on a table or a cooking bench, so that the cover 200 is prevented from being hinged or plugged on the cooker body 100, and the cooking operation of the user on food in the inner container 400 is prevented from being influenced, i.e., the electric pressure cooker is connected in a split manner.

The cooker cover is provided with an outer cover 201 and a locking piece provided with a locking structure 203, in the embodiment, the locking piece is a locking cover 202, for the electric pressure cooker, the cooker cover 200 and the cooker body 100 are not simply covered together, in order to effectively press upwards, the cooker cover 200 is provided with the locking structure 203, the locking structure 203 is arranged on the locking cover 202, the locking cover 202 is fixed on the outer cover 201, the cooker body is provided with a locking structure 101, correspondingly, the locking structure 203 is generally cover teeth, the locking structure 101 is cooker teeth, when the cooker teeth and the cover teeth are meshed, the locking structure is in a locking position, the cooker cover 200 and the cooker body 100 are locked, when the cooker teeth and the cover teeth are staggered, the cooker teeth and the cover teeth are in an unlocking position, and the cooker body 100 and the cooker cover 200 are unlocked. The outer cover is a cover body part except the locking piece, and the cover body part is positioned outside the locking piece and does not rotate along with the rotation of the locking piece.

In order to realize the top temperature measurement of the split electric pressure cooker and improve the cooking effect, a coupler 300 is arranged between the cooker body 100 and the cooker cover 200 to realize electric connection, the coupler 300 comprises an upper coupler 302 and a lower coupler 301, the upper coupler 302 is arranged on the cooker cover 200, the lower coupler 301 is arranged on the cooker body 100, and after locking is completed, the upper coupler and the lower coupler realize coupling, so that the top temperature measurement can be realized only after the cooker cover 200 is completely locked, and the cooking safety is improved; one of the specific upper and lower couplers may be floating or movable.

In order to couple the upper coupler 302 with the lower coupler 301, the upper coupler 302 arranged on the outer cover 201 also needs to rotate along with the rotation of the cover, and then can be coupled with the lower coupler 301 on the pot body. Generally speaking, the lower coupler 301 is disposed at the locking position of the pot body 100, when the pot cover is covered on the pot body 100, the upper coupler 302 is at the unlocking position a, there is a certain radian or angle interval between the two, the upper coupler 302 needs to rotate along with the rotation of the pot cover, and gradually moves rapidly towards the lower coupler 301, when the pot cover is locked in place, the upper coupler 302 already has kinetic energy with variable magnitude (some users have large screwing force and some users have small force), when being matched with the lower coupler 301, a large impact force is generated, so that the friction of the couplers is increased, the PIN is bent and deformed, the service life is shortened, and finally, the problems that the contact between the upper coupler and the lower coupler is poor, the electrical conduction cannot be effectively performed, even the fire is struck and the like are caused.

In order to solve the above problem, the locking cover 202 is rotatably disposed in the outer cover 201 relative to the outer cover 201; as shown in fig. 2-3, the cover 200 covers the pot body 100, the upper coupler 302 and the lower coupler 301 are inserted and matched up and down, the outer cover 201 is fixed in a limited manner relative to the pot body 100, the locking cover 202 is rotated, and the locking structure 203 and the locking structure 101 are switched between an unlocking position a and a locking position b.

In this embodiment, the lower coupler 301 is still disposed at the locking position b of the pot body 100, but the locking cover 202 with the locking structure 203 can be rotatably disposed relative to the outer cover 201, so that the upper coupler 302 does not rotate with the rotation of the locking structure 203, can be separated from the locking action, and only participates in the covering action, and therefore, the covering action of the split pressure cooking apparatus can be simplified, i.e., the rotation action is cancelled, and only the upper and lower covering actions are performed, and considering from the degree of freedom, assuming that the height direction of the pot body 100 is the Z axis, the pot cover 200 of the conventional pressure cooking apparatus has two degrees of freedom when covering, i.e., the moving degree of freedom along the Z axis direction, and the rotating degree of freedom around the Z axis direction, in this embodiment, the locking cover 202 and the outer cover 201 are separately disposed, so that the outer cover 201 only needs to complete the covering, and the rotating degree of freedom around the Z axis direction can be omitted, at this time, when the outer cover 201 is closed, the upper coupler 302 is also located at the locking position b, the outer cover 201 does not need to rotate, and the upper coupler 302 and the lower coupler 301 can be matched only by aligning the upper coupler and the lower coupler, so that the distance of the matching motion between the upper coupler 302 and the lower coupler 301 is greatly reduced compared with the traditional matching mode, the problems that the upper coupler and the lower coupler of the pressure cooking appliance are relatively far and the kinetic energy is overlarge are solved, and the impact between the couplers can be relieved.

As shown in fig. 2, when the lid is closed, the locking cover 202 is rotated to make the locking structure 203 be at the unlocking position a, and complete the alignment fit with the locking structure 101, thereby ensuring that, as shown in fig. 4, after the lid is closed, the locking cover 202 can be rotated to the locking position b relative to the outer cover 201, so as to complete the locking action with the locking structure 101, since the upper coupler 302 and the lower coupler 301 are matched when the lid is closed, and the locking cover 202 needs to complete the locking action after the lid is closed, although the locking cover 202 is rotatably disposed relative to the outer cover 201, since the locking cover 202 is still fixed on the lid 200, during the execution of the locking action, due to the interaction relationship of forces, the torque generated by the rotation of the locking cover 202 will make the outer cover 201 also be affected by the interaction force, generating a movement trend, so as to reduce the adverse effect of the locking action on the upper coupler 302 and the lower coupler 301, when the pot cover is covered, the outer cover 201 is fixed on the pot body 100 in a limiting manner, so that the outer cover 100 is locked by the rotation limiting manner, the movement trend can be eliminated when the locking cover 202 rotates relative to the outer cover 201, and the problems of poor contact and PIN deformation caused by tangential force between the upper coupler and the lower coupler due to the movement trend are avoided; in summary, the plug-in type coupler disposed between the lid 200 and the pot 100 of the present embodiment can greatly reduce the impact of the lid during locking, and improve the service life.

In some alternative embodiments, the locking element may also be a locking ring, the locking structure 203 is disposed on the locking ring, the locking cover 202 and the locking ring are made of metal and can bear pressure, so as to ensure safe pressure cooking, and the outer cover 201 is an injection molded part for installing the locking cover 202. The locking ring is annular, and the middle part is hollow.

In this embodiment, as shown in fig. 4 and 5, when the locking structure 203 is locked with the latch structure 101, the upper coupler 302 is electrically connected with the lower coupler 301. In order to ensure the safe operation of pressure cooking, the conventional pressure cooking appliance is provided with a sensor for detecting the closing of the cover to identify whether the cover is locked in place, for example, a reed switch is arranged at the locking position b of the cooker body 100, a magnet is arranged on the cooker cover 200, the magnet rotates along with the rotation of the cooker cover, when the locking position b is reached, the reed switch is closed, a signal is output, and at the moment, the heating device can normally heat, so that the safe operation of cooking is ensured.

In this embodiment, the outer cover 201 is separated from the locking action and does not participate in the locking action, so that in the using process, it is no longer possible to identify whether the locking structure 203 is locked in place by detecting the position of the outer cover 201, but since the upper and lower couplers are provided, it is possible to determine whether the system can be heated by turning on and off the upper and lower couplers. Therefore, when the locking structure 203 is locked with the locking structure 101, the upper coupler 302 is electrically connected with the lower coupler 301, so that heating cooking can be performed only after locking is performed in place, and safety of pressure cooking is guaranteed.

In this embodiment, the lid 200 is provided with an actuator 204 moving between an unlocking position a and a locking position b, and specifically, in order to realize that the locking structure 203 is associated with the upper coupler 302 when locked in place, the locking lid 202 is provided with an actuator 204, and the actuator 204 moves along with the rotation of the locking lid 202; meanwhile, the upper coupler 302 is movably disposed on the outer cover 201, and the actuating member 204 interacts with the upper coupler 302 to make the upper coupler 302 fall or float.

As shown in fig. 3, since the upper coupler 302 is movably disposed, when the outer lid 201 is closed, the upper coupler and the lower coupler are actually only aligned and matched, and the PIN PINs inside the upper coupler and the lower coupler are not inserted, which further improves the impact resistance between the upper coupler and the lower coupler, and because even if a certain impact force still exists due to the relative movement between the outer lid 201 and the pan body 100 when the outer lid is closed, the impact force will not substantially affect the key structure inside the couplers, so that the service life of the upper coupler and the lower coupler can be further prolonged.

The actuator 204 is arranged to realize the mutual association between the locking structure 203 and the coupler, as shown in fig. 5, the actuator 204 acts on the upper coupler to press down the upper coupler 302, when the upper coupler 302 is pressed down, the upper coupler 302 and the lower coupler 301 are inserted into each other, and the PIN inside the upper coupler 302 and the PIN inside the upper coupler 301 are electrically connected, so that the electric conduction between the pot body 100 and the pot cover 200 is completed, and the heating device of the pot body 100 can normally heat and cook only after receiving a signal for conducting the upper coupler 302 and the lower coupler 301, thereby ensuring the safety of the pressure cooking. When the upper coupler 302 floats upwards, the upper coupler 302 and the lower coupler 301 are disconnected with each other and are not conducted, at the moment, the heating system of the pot body 100 does not continue to heat any more, so that food in the inner container does not boil any more to generate steam, the pressure cannot continue to rise, and the cooking safety is further ensured.

As shown in fig. 8, the connector body 303 of the upper coupler 302 has PINs 305(PIN PINs) for realizing insertion, the connector body 303 of the lower coupler 301 has a socket 306, the PINs 305 and the socket 306 are inserted and matched along the up-down direction of the pot body 100 to realize the electrical connection between the pot body 100 and the lid 200, the number of the PINs 305 is 2, one of the PINs is a positive electrode, the other is a negative electrode, the positive electrode is responsible for the supply of the lid electrical energy and also responsible for the transmission of signals, the impact resistance of the coupler can be improved by using two PINs 305, and the excessive PINs 305 are not beneficial to ensuring that all the PINs 305 are completely inserted and matched. Of course, in some alternative implementations, the number of the pins 305 may be multiple, such as 3 (adding ground), 4 (adding ground, signal), etc., and the smaller the number, the better, the invention is not limited thereto. The electric connection between the upper coupler and the lower coupler can be that the connector body of the upper coupler and the contact pin float synchronously, or the connector body is fixed and the inner contact pin moves.

As shown in fig. 7, the pot cover 200 has a plug hole, the upper coupler 302 is disposed in the plug hole and can float up and down in the plug hole, as shown in fig. 8, two sides of the upper coupler 302 have fixing lugs 307, the outer cover 201 and the fixing lugs 307 have fixing protrusions 308, the outer cover 201 is provided with fixing posts 309, the fixing lugs 307 are limited on the outer cover 201 by gaskets (not shown) of screws (not shown), the screws (not shown) are connected with the fixing posts 309, the fixing lugs 307 are sleeved on the fixing posts 309 so as to enable the upper coupler 302 to float up and down, in other embodiments, an elastic reset piece (not shown) may be disposed between the fixing lugs 308 and the fixing lugs 307, and in this embodiment, the elastic reset piece is not disposed.

In an alternative embodiment of this embodiment, the upper coupler 302 may be disposed by other fixing schemes, which is not limited in the present invention.

A limiting structure is arranged between the pot body 100 and the outer cover 201 to limit and lock the rotation of the outer cover 201. Due to the existence of the limiting structure, the pot cover 200 cannot rotate relative to the pot body 100 after being completely covered, so that the movement trend generated by the locking structure 203 cannot cause adverse effects on the upper coupler and the lower coupler during locking action. Specifically, as shown in fig. 6 and 7, the limiting structure includes a limiting post 102 and a limiting hole 205, the limiting post 102 and the limiting hole 205 are vertically matched, and can be disposed on the outer cover 201 or the pot body 100, that is, the limiting post 102 and the limiting hole 205 are respectively disposed on one of the pot body 100 and the outer cover 201, so as to facilitate alignment and facilitate taking and placing of the pot cover 200, the limiting post 102 is disposed on the pot body 100, and the limiting hole 205 is disposed on the outer cover 201, of course, in some alternative embodiments, the limiting hole 205 may also be disposed on the pot body 100, and the limiting post 102 is disposed on the outer cover 201.

The limiting structure can also be other limiting structures, such as a magnetic attraction positioning structure between the outer cover 201 and the pot body 100, so that the pot body 100 or the outer cover 201 can be prevented from extending out or being concavely formed to have a relevant structure, and the surface of the part of the whole outer cover 201 matched with the pot body 100 can be kept flat, so that the cleaning is convenient.

Based on the relative positional relationship between the upper coupler 302 and the lower coupler 301, predetermined positions of the upper coupler 302 can be defined, which include an on position in which the upper coupler 302 is in conduction with the lower coupler 301 when the lock structure 203 is locked, as shown in fig. 4-5, and an off position in which the upper coupler 302 is out of conduction with the lower coupler 301 when the lock structure 203 is unlocked, as shown in fig. 3-4. Generally, the actuator 204 can actuate the upper coupler 302 to switch between the on position and the off position, although in some embodiments, the predetermined position can be more.

As shown in fig. 5, in order to make the upper coupler 302 have a small impact force when changing the predetermined position, the actuating member 204 has a guide portion 206 and a position-limiting portion 207, the upper coupler 302 is fixed at the predetermined position of the outer cover 201 by being limited when being located at the position-limiting portion 207, and the upper coupler 302 changes the predetermined position by the guide portion 206. The guide 206 is provided to make the upper coupler 302 more stable when changing the predetermined position, thereby reducing the shock.

More specifically, as shown in fig. 9 and 5, the guiding portion 206 is a guiding inclined surface, the limiting portion 207 is a limiting platform, the limiting platform is arranged in parallel with the horizontal plane, the guiding inclined surface is arranged in an inclined manner with respect to the horizontal plane, and the inclined angle is preferably 45 degrees, so that the component force is equal, the action is uniform, and the impact can be small, so that the angle is 45 degrees in this embodiment, and of course, in other embodiments, the inclined angle can be other values, for example, selected by oneself within a range of 0-90 degrees; the two limiting platforms are respectively a first limiting platform 71 and a second limiting platform 72, the height position of the first limiting platform 71 is higher than that of the second limiting platform 72, correspondingly, the first limiting platform 71 corresponds to a disconnection position, the second limiting platform 72 corresponds to a conduction position, and a guide part 206 is arranged between the first limiting platform 71 and the second limiting platform 72.

Compared with other types of electric connectors, the plug-in type coupler has the advantages of lower communication cost, convenience in power supply and easiness in control. However, since a person cannot completely move in the vertical or vertical direction when opening the lid, when the lid 200 is opened, if the upper and lower couplers are not separated, the PIN is easily twisted to cause deformation, and the deformed PIN causes the smooth insertion and separation of the upper and lower couplers, which easily causes the damage of the couplers and further prevents normal cooking.

For this purpose, an actuating structure is provided, controlled by an actuating member, which is controlled to float the upper coupler upwards to disengage the electrical connection with the lower coupler when the actuating member 204 is moved to the unlocking position; the actuating element 204 and the actuating structure are in a control form with a direct interaction relationship, and are not indirectly controlled, for example, the direct control object of the elastic resetting piece is an upper coupler, the actuating element 204 and the elastic resetting piece are not in direct contact and can only indirectly interact, so that the elastic resetting piece is not in an actuating structure; the actuator 204 having the guide portion 206 and the stopper portion is also an upper coupler, which is a direct control object in the locked position, but the upper coupler having the guide portion 206 and the stopper portion 207 acts on the upper coupler only when it is pressed down, and cannot be controlled to float up when it is separated from the locked position, so that the actuator 204 cannot actively act on the upper coupler after it is separated from the upper coupler, and there is a possibility that the upper coupler cannot normally float up; in this embodiment, the actuating structure can be directly controlled to actively float the upper coupler under the action of the actuating member 204, so that after the actuating member 204 is disengaged from the locking position, the floating of the upper coupler can be actively controlled instead of being passively floated by the elastic force of the elastic resetting member, so that the whole process of floating and pressing the upper coupler participates in the locking action.

After the electric pressure cooker finishes cooking, when pressure is released and the cover needs to be opened, the locking cover is firstly rotated to an unlocking position from a locking position, then the cooker cover 200 is opened, if an actuating structure is not arranged, the upward floating of the upper coupler needs to be reset by the elastic force of the elastic resetting piece, once the PIN needle is bent, the problem that the upper coupler cannot be reset exists, at the moment, if the cooker cover 200 is opened, the bending of the PIN needle is further aggravated, so that vicious circle is realized, and the normal cooking cannot be realized for a long time. Through the arrangement of the actuating structure, in the process of locking the position to the unlocking position, the unlocking action actively exerts a force to promote the upper coupler to be effectively reset, so that the upper coupler can be completely reset, and the bending of the PIN needle cannot be aggravated under the action of opening the cover.

The actuating structure directly controlled by the actuating member 204 can be arranged on the outer cover or on the actuating member 204; in this embodiment, the actuating structure is disposed on the actuating member 204 and moves synchronously with the actuating member 204, as shown in fig. 2, 4 and 9, specifically, the actuating structure is a sliding slot 218 formed on the actuating member 204, and in some alternative embodiments of this embodiment, the actuating structure may also be a guide rail disposed on the actuating member 204; for this purpose, the upper coupler is provided with a mating structure through which the actuating structure controls the upper coupler to move, as shown in fig. 2 and 4, the mating structure is a slider 312, and the actuating member 204 controls the synchronously moving slide groove 218 to cooperate with the slider 312 to float the upper coupler.

The slide fastener 312 is synchronously movable with the upper coupler and is movably arranged up and down with the upper coupler; the slide groove 218 moves synchronously with the actuator 204 and rotates horizontally with the actuator 204;

when the upper coupler falls, the actuating member 204 can be used, and the action of the actuating structure can also be used, when the upper coupler floats upwards, the interaction of the actuating structure is used, but not the action of the elastic resetting member, therefore, a first action interval when the sliding buckle 312 is matched with the sliding groove 218, and a second action interval when the actuating member 204 moves in the unlocking position and the locking position are used; the first action interval is equal to the second action interval.

When the first action interval is equal to the second action interval, the elastic reset piece is not arranged, as shown in fig. 2 and 3, when the actuating piece 204 moves to the unlocking position a, the upper coupler can float upwards and be limited to a preset position by means of the matching of the sliding groove 218 and the sliding buckle 312, as shown in fig. 4 and 5, and when the actuating piece falls, the electrical connection between the upper coupler and the lower coupler can be realized by means of the matching of the sliding groove 218 and the sliding buckle 312; therefore, the slider 312 includes an upper limit portion 313, a lower limit portion, and an engaging portion 314 provided between the upper limit portion 313 and the lower limit portion, the engaging portion 314 may be a notch provided in the slider 312 or a portion located between the upper limit portion 313 and the lower limit portion, and the upper limit portion 313 and the lower limit portion may be formed integrally with the slider 312 or may be a spacer provided on the slider 312. The engaging portion 314 engages with the slide groove 218 to shift from the position of fig. 4 to the position of fig. 2, the upper limit portion 313 engages with the slide groove 218 to float the upper coupler when the actuator 204 moves from the locked position b to the unlocked position a, and shifts from the position of fig. 2 to the position of fig. 4, and the lower limit portion engages with the slide groove 218 to drop the upper coupler under the action of gravity when the actuator 204 moves from the unlocked position a to the locked position b; whether the actuator 204 is in the unlocking position a or the locking position b, the upper limit part 313 and the lower limit part can limit the position so as to ensure that the lower coupler can be effectively and electrically connected with the upper coupler in the locking position b; in the unlocked position a, the upper coupler can be separated from the lower coupler, and does not fall under the influence of gravity.

In the present embodiment, when the first operating interval is equal to the second operating interval, as shown in fig. 4 and 5, the upper coupler may be lowered by the stopper portion 207 and the guide portion 206 of the actuator 204, and in this case, as shown in fig. 8 and 10, the slider 312 may not be provided with the lower stopper portion. As shown in fig. 2 and 3, in the unlocked position a, the upper coupler is retained in the open position by the upper retainer portion 313, and in the locked position b, the upper coupler is secured in the closed position by the retainer portion 207 of the actuator 204 and the upper retainer portion 313 to make electrical connection with the lower coupler.

Generally, the rotation angle of the lock cover may be about 30 degrees, that is, the angle between the unlocking position a and the locking position b, and this interval is the second action interval; the first action interval is as follows: in the locked position b, the travel of the slide groove 218 in engagement with the slide catch 312 during the movement of the actuator 204 toward the unlocked position a is the starting point of the travel in the locked position b, in which the slide groove 218 in engagement with the slide catch 312 is.

To realize the action of the upper coupler, as shown in fig. 9, the sliding slot 218 at least includes an inclined sliding slot 220 which is engaged with the sliding button 312 to move the upper coupler up and down, and when the actuating member 204 is rotated circumferentially by the inclined sliding slot 220, a component force in the up-and-down direction can be generated in the process of engaging the sliding button 312 with the sliding slot 218. In order to achieve the locking position b, the sliding slot 218 and the sliding buckle 312 can keep matching, so the sliding slot 218 further comprises a horizontal section sliding slot 219 which is matched with the sliding buckle 312 to limit the upper coupler at a preset position, and the horizontal section sliding slot 219 is connected with the inclined section sliding slot 220. The inclined direction of the inclined section sliding groove 220 is an up-down direction extending to form a force component in the up-down direction. As shown in fig. 9, in the unlocked position a, the length of the first restraint platform 71 is greater than the length of the second restraint platform 72, such that the horizontal segment runner 219 on the first restraint platform 71 can restrain the upper coupler 302.

Due to the circumferential movement of the actuating member 204, in order to enable the sliding slot 218 and the sliding buckle 312 to be smoothly engaged, the projection of the sliding slot 218 in the up-down moving direction of the upper coupler is arc-shaped.

In this embodiment, the cover 200 of the electric pressure cooker is split type, which is different from the integrated type, and after the locking piece (locking cover or locking ring) can rotate independently relative to the outer cover 201, in the taking and placing process of the cover 200, the problem of inconvenience in taking and placing can be caused, specifically, the integrated type pressure cooking appliance, because one side of the integrated type pressure cooking appliance is hinged on the cooker body 100, the opening action of the cover 200 is relatively simple, only the integrated type pressure cooking appliance needs to rotate around the hinged side, and the final placing state of the cover 200 is unique. Split type cooking utensil, pot cover 200 can break away from pot body 100 completely, and the state that pot cover 200 placed at last is indefinite, may be the side stand, keep flat, invert, lean on and place etc. and the state of placing is not unique, and pot cover 200 is just comparatively complicated at the atress of getting in-process of putting like this, makes locking closure or locking collar or enclosing cover 201 rotate easily, and the rotation of getting in-process pot cover 200 is unfavorable for getting of pot cover 200 and puts, can not be according to user's wish, makes pot cover 200 be in the final state that wants fast.

Get the rotation of putting the in-process, the friction between easy aggravation locking collar or locking closure and the enclosing cover 201 for mutual wearing and tearing aggravation, simultaneously, make fasteners such as the screw pine of fixed locking collar or locking closure loose easily, above can both reduce pot cover 200's life.

In this embodiment, as shown in fig. 11, a rotation stopping structure 210 is disposed on the outer cover 201, and when the outer cover 201 is separated from the pot body 100, the rotation stopping structure 210 limits and fixes the locking cover or the locking ring relative to the outer cover 201.

Therefore, when the outer cover 201 is separated from the pot body 100, the rotation stopping structure 210 enables the locking cover or the locking ring to be limited and fixed relative to the outer cover 201, so that when the pot cover 200 is taken down from the pot body 100, the locking cover or the locking ring cannot rotate relative to the outer cover 201 alone, or the outer cover 201 cannot rotate relative to the locking cover or the locking ring alone, so that torque cannot be generated, the shaking amount is small, and the user experience is good; meanwhile, the problem of abrasion caused by rotation of the lock cover or the lock ring and the outer cover 201 can be prevented, and the service life can be prolonged.

Specifically, the lock cover or the lock ring is provided with a rotation-stopping limiting part which moves along with the rotation of the lock cover or the lock ring; the rotation-stopping structure 210 is engaged with the rotation-stopping limiting portion to limit and fix the locking cover or the locking ring relative to the outer cover 201.

As shown in fig. 12, the rotation stop limiting portion may be a rotation stop hole 211 provided in the lock cover or the lock ring, or may be another member provided in the lock cover or the lock ring. In this embodiment, the rotation-stopping limiting portion is disposed on the actuator 204, specifically, a rotation-stopping hole 211 formed on the actuator 204, and a rotation-stopping structure 210 engaged with the rotation-stopping limiting portion is disposed on the outer cover 201.

Specifically, the rotation stopping structure 210 includes a rotation stopping portion 212 and a floating rod 213, the outer cover 201 is provided with the floating rod 213, and the rotation stopping portion 212 moves along with the floating of the floating rod 213; the floating rod 213 is arranged on the outer cover 201 through a return spring 227, and the rotation stopping part 212 can be matched with the rotation stopping hole 211 on the actuating piece 204, so that the locking cover is limited and locked. The rotation stopping structure 210 is arranged at the unlocking position a, so that after unlocking, when the pot cover 200 is separated from the pot body 100, locking can be immediately locked at a position convenient for closing again. When the user takes the pot cover 200 to fasten to the pot body 100 again, the locking structure 101 and the locking structure 203 can be aligned quickly, and the alignment time of the locking structure 203 and the locking structure 101 is saved.

Since the locking action is required to be completed when the pot cover 200 is covered on the pot body 100, the self-locking state between the outer cover 201 and the locking cover 202 needs to be released after the covering is completed, and therefore, the self-locking state can be released by utilizing the limit structure arranged on the pot body 100 to realize the linkage with the floating rod 213.

As shown in fig. 13-14, in order to realize the linkage of the floating rod 213, the limiting column 102 is disposed on the pot body 100, the limiting hole 205 is disposed on the outer cover 201, and the floating rod 213 is disposed in the limiting hole 205, so that when the outer cover 201 is covered on the pot body 100, the limiting column 102 of the pot body 100 is matched with the limiting hole 205 of the outer cover 201, so that the floating rod 213 floats upwards, and the floating rod 213 drives the rotation stopping portion 212 to separate from the rotation stopping hole 211 on the actuating member 204, thereby releasing the self-locking state of the food material. When the floating rod 213 is in the floating state, the floating rod is in the floating position, and the return spring 227 is compressed; if the cover 201 is removed from the pot 100, the floating rod 213 will return to the rotation stop position under the action of the return spring 227.

As shown in fig. 15, a handle 214 is disposed on the lid 200, the handle 214 is fastened to the locking cover 202 through a screw 215, the handle 214 is fastened to the locking cover 202, the handle 214 can directly drive the locking cover 202 to rotate, in the split pressure cooking appliance, the handle 214 on the lid 200 is used for completing the unlocking or locking function, and meanwhile, the disposed handle 214 can also facilitate taking and placing of the lid 200, and a user can take and place the lid 200 by grasping the handle 214, which improves the user experience. Of course, in some embodiments, the handle 214 may be fixed on the cover 201 in a rotatable manner relative to the cover 201, at this time, the locking structure is disposed on the locking ring, the handle 214 is provided with a shifting fork, the locking ring is provided with a shifting rod matched with the shifting fork, the shifting fork is matched with the shifting rod, and during the process of rotating the handle 214, the shifting fork drives the shifting rod to rotate, and further drives the locking ring to rotate.

In this embodiment, the locking cover 202 is hoisted on the outer cover 201 through the handle 214, the rotation of the locking cover 202 is realized through the support of the handle 214, in order to reduce the stability of the locking cover 202 which can rotate relative to the outer cover 201, and reduce the shaking of the locking cover 202, the support step 216 is arranged on the handle 214, the support platform 217 is arranged on the outer cover 201, and the support step 216 is supported on the support platform 217, so as to reduce the left and right shaking of the handle 214 at the position of the shaft hole of the outer cover 201, and increase the contact area during rotation, and improve the stability.

Example two:

the difference between the embodiment and the first embodiment is that the electric pressure cooker provided by the embodiment is conjoined, and the common conjoined electric pressure cooker is wired from the hinged position of the cooker cover 200 and the cooker body 100, but the wires are worn and broken, so that the power supply of the cooker cover 200 can be realized by adding the coupler, and similarly, the conjoined electric pressure cooker also has the problems mentioned in the first embodiment, and if the upper coupler and the lower coupler are not matched, the cooker cover 200 turns over around the hinged position, the PIN of the coupler is easily damaged by the cooker cover 200. Therefore, the use of the connection of the runner 218 and the slider 312 can solve this technical problem.

Example three:

the difference between this embodiment and the first embodiment is that, as shown in fig. 16, the actuating structure is a push rod 208 disposed on the outer cover 201, and the push rod 208 is rotatably disposed on the outer cover 201 through a rotating shaft 222; one end of the top bar 208 is matched with the upper coupler; during the process of moving the locking position to the unlocking position, when the actuating member moves to the unlocking position, the actuating member causes the push rod 208 to rotate around the rotating shaft 222, so that the upper coupler floats upwards.

At this time, as shown in fig. 18, 19 and 20, the matching structure is a protrusion 310 disposed on the upper coupler, one end of the top rod 208 is matched with the protrusion 310, in order to make the force applied to the upper coupler uniform, the protrusion 310 is disposed on both sides of the upper coupler, correspondingly, a notch 221 and lifting rods 209 disposed on both sides of the notch 221 are disposed at one end of the top rod 208 matched with the protrusion 310, when the upper coupler is installed, the upper coupler is disposed in the notch 221, and the lifting rods 209 disposed on both sides are matched with the protrusion 310; when the actuating structure acts on the top bar 208, the top bar 208 rotates around the rotating shaft 222, the lifting rod 209 lifts up, and the upper coupler floats up.

In order to realize the electrical connection between the upper coupler and the lower coupler and maintain the upper coupler at the conducting position on the outer cover, the structure for limiting the position may be a top rod 208 or a limiting part 207 of the actuating member.

In an implementation manner, when the top rod 208 is used for limiting, a torsion spring is arranged at the rotating shaft 222; when the actuating member 204 is disengaged from the top bar 208, the torsion spring rotates the top bar 208 to electrically connect the upper coupler and the lower coupler.

In another embodiment, the upper coupler and the lower coupler are electrically connected by means of a position-limiting portion 207 of the actuator 204.

As shown in fig. 17, when the lid 200 is covered on the pot body 100, the actuator 204 is located at the unlocking position, and at this time, the push rod 208 is tilted to the state d by the actuator 204, so that the upper coupler is limited at the disconnection position, and the lid 200 is ensured not to be electrically connected with the upper coupler when covered on the pot body 100; the locking member is rotated to move the actuator 204 from the unlocked position to the locked position, at which time the actuator 204 no longer acts on the plunger 208 and the plunger 208 is in state c.

In the first embodiment, the torsion spring drives the top rod 208 to rotate, so that the upper coupler is limited at the conducting position, and the upper coupler is electrically connected with the lower coupler; in order to facilitate the upper coupler to be limited at the conducting position, the protrusion 310 is provided with an upper protrusion and a lower protrusion, and the raising rod 209 is positioned between the upper protrusion and the lower protrusion to realize the limit in the up-down direction; the actuator 204 may not be provided with the guiding portion 206 and the limiting portion 207, so it should be understood that the actuator 204 may have other structural forms, and the matching structure is not limited to the form of the protrusion, and the application is not limited thereto. The spacing of position is switched on through torsion spring, the culinary art characteristics of adaptation pressure cooker that can be better, after the pressure cooker pushes up, because the existence of inside and outside pressure differential, there is certain clearance of floating between pot cover 200 and the pot body 100, and the coupling between last coupler and the lower coupler also has certain clearance of floating, and the torsion spring who sets up can provide certain floating volume, guarantees that the coupler can be connected with lower coupler effective electricity.

In the second embodiment, no torsion spring is provided, when the actuator 204 no longer acts on the top rod 208, the guide portion 206 and the limiting portion 207 of the actuator 204 act on the upper coupler, and since the upper coupler is not provided with an elastic reset member, gravity will cause the upper coupler to fall, but will not cause the upper coupler to reach the conducting position, and thus reliable electrical connection between the upper coupler and the lower coupler cannot be ensured; as shown in fig. 18, when the actuator 204 reaches the locking position, the position-limiting portion 207 will make the upper coupler reach the conducting position, so that the upper coupler and the lower coupler can be effectively connected electrically. The protrusion 310 only needs to be provided with an upper protrusion to ensure that the upper coupler can be jacked up by the jack 208.

In this embodiment, the second embodiment is adopted, and in other alternative embodiments in this embodiment, the first embodiment mode may be adopted.

Claims

1. An electric pressure cooker comprises a cooker cover and a cooker body, wherein the cooker cover is provided with an outer cover and a locking piece arranged on the outer cover, the locking piece can rotate relative to the outer cover, the locking piece moves between an unlocking position and a locking position to realize the unlocking and locking of the cooker cover and the cooker body, and the electric pressure cooker is characterized in that a coupler is arranged between the cooker cover and the cooker body, the coupler comprises an upper coupler and a lower coupler, the upper coupler and the lower coupler are inserted into the upper coupler and the lower coupler through a pin inserting hole, the upper coupler is movably arranged on the outer cover, and the lower coupler is arranged on the cooker body;

the cooker cover is provided with an actuating piece moving between an unlocking position and a locking position and an actuating structure controlled by the actuating piece; under the locking position, the upper coupler is electrically connected with the lower coupler; and when the actuating piece moves to the unlocking position, the actuating structure is controlled to enable the upper coupler to float upwards so as to be separated from the electrical connection with the lower coupler.

2. The electric pressure cooker according to claim 1, characterized in that: the actuating structure is movably disposed on the outer cover.

3. The electric pressure cooker according to claim 1, characterized in that: the actuating structure is disposed on the actuating member for synchronous movement with the actuating member.

4. The electric pressure cooker according to claim 2 or 3, characterized in that: and the upper coupler is provided with a matching structure, and the actuating structure controls the action of the upper coupler through the matching structure.

5. The electric pressure cooker according to claim 3, characterized in that: the actuating structure is a sliding groove arranged on the actuating piece; or, the actuating structure is a guide rail disposed on the actuating member.

6. The electric pressure cooker according to claim 1, characterized in that: in the locked position, the actuator electrically connects the upper coupler to the lower coupler.

7. The electric pressure cooker according to claim 1, characterized in that: in the locked position, the actuating structure electrically connects the upper coupler to the lower coupler.

8. The electric pressure cooker according to claim 2, characterized in that: the actuating structure is a mandril arranged on the outer cover, and the mandril is rotatably arranged on the outer cover through a rotating shaft; one end of the ejector rod is matched with the upper coupler; when the actuating piece moves to the unlocking position, the actuating piece enables the ejector rod to rotate around the rotating shaft, and therefore the upper coupler floats upwards.

9. The electric pressure cooker according to claim 8, characterized in that: the rotating shaft is provided with a torsion spring, and when the actuating piece is separated from acting on the ejector rod, the torsion spring enables the ejector rod to rotate so as to enable the upper coupler to be electrically connected with the lower coupler.

10. The electric pressure cooker according to claim 1, characterized in that: the actuating piece is provided with a guide part and a limiting part, the upper coupler is limited at a preset position of the outer cover when positioned at the limiting part, and the upper coupler changes the preset position under the action of the guide part.