CN210961474U - Cooking apparatus - Google Patents

Abstract

The utility model provides a cooking device, include: the inner pot is provided with a buckling part; the upper cover is suitable for covering the inner pot so that the inner pot and the upper cover enclose a cooking cavity, and is provided with a lock catch which is suitable for being buckled with the buckling part to lock the upper cover and the inner pot; the first pushing piece is movably arranged; the cover opening key is configured to transmit force between the cover opening key and the lock catch, and the cover opening key is configured to drive the first pushing part to move, so that the first pushing part is linked with the lock catch and controls the lock catch to be unlocked from the buckling part; the pressure in the cooking cavity is larger than or equal to the preset pressure, so that the lock catch and the buckling part are mutually abutted, and the friction force between the lock catch and the buckling part limits the movement of the first pushing piece. The cooking equipment provided by the scheme can prevent danger of uncovering halfway, and is high in product safety level.

Description

Cooking apparatus

Technical Field

The utility model relates to a kitchen utensil field particularly, relates to a cooking equipment.

Background

Existing pressure cooking appliances produce pressure in the cooking cavity during cooking, and the midway uncovering can produce dangers, and a general solution is to add an additional mechanism for preventing the midway uncovering, or further to set up an uncovering prevention mechanism between the cooker body and the upper cover, which leads to cost increase.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one of the above technical problems, an object of the present invention is to provide a cooking apparatus.

To achieve the above object, an embodiment of the present invention provides a cooking apparatus, including: the inner pot is provided with a buckling part; the upper cover is suitable for covering the inner pot, so that the inner pot and the upper cover enclose a cooking cavity, and the upper cover is provided with a lock catch which is suitable for being buckled with the buckling part to lock the upper cover and the inner pot; the first pushing piece is movably arranged; the cover opening key is configured to transmit force between the cover opening key and the lock catch, and the cover opening key is configured to drive the first pushing piece to move, so that the first pushing piece is linked with the lock catch and controls the lock catch to be unlocked from the buckling part; the pressure in the cooking cavity is larger than or equal to a preset pressure, so that the lock catch and the buckling part are abutted against each other, and the first pushing piece is limited to move by the friction force between the lock catch and the buckling part.

The utility model discloses above-mentioned embodiment provides a cooking equipment, first impeller is connected with the hasp transmission, pressure in the culinary art intracavity is less than under the condition of predetermineeing pressure, press the key of uncapping, can drive first impeller motion, thereby make the linkage hasp of first impeller control hasp and the lock part unblock of interior pot, pressure more than or equal to in the culinary art intracavity predetermines under the condition of pressure, can produce frictional force between hasp and the lock part, utilize frictional force between the two to restrict the motion of hasp, thereby utilize the linkage cooperation of hasp and first impeller to restrict the motion of first impeller in reverse, at this moment, press the lock part unblock of the unable drive hasp of key of uncapping and interior pot, thereby the interior pressure that rises along with the culinary art chamber before pot and the upper cover realizes the auto-lock of uncapping of preventing, prevent the danger of uncapping midway.

Compared with the traditional structure which is provided with the midway uncovering prevention mechanism independently, the design utilizes the lock catch and the buckling part to be buckled to form friction force, the first pushing part is further braked by taking the friction force as a power source while the lock catch and the buckling part are automatically locked, the use way of uncovering through the uncovering key is blocked midway, the product is more reliable and safer, the structure can be obtained by being transformed through the existing structure easily, the independent mechanism does not need to be added, and the cost of the product is greatly saved. Compared with the traditional structure that the midway anti-uncovering mechanism is arranged between the cooker body and the upper cover, the structure has the advantages that the number of parts of a product is simplified, the cost is saved, meanwhile, the forming position of friction force is limited between the buckling part of the inner pot and the lock catch of the upper cover, therefore, the response precision between the friction force and the pressure in the cooking cavity is higher, the realized midway anti-uncovering effect is better and more accurate, and the safety level of the product is further improved.

In addition, the utility model provides a cooking device in above-mentioned embodiment can also have following additional technical characterstic:

in the technical scheme, the value range of the preset pressure is 2 kPa-6 kPa.

In the scheme, the value range of the preset pressure is set to be 2kPa (kilopascal) -6 kPa, good midway anti-uncovering protection can be formed by enabling the preset pressure to be 6kPa or below 6kPa, uncovering danger is greatly avoided, interference caused by normal pressure floating in the process of normal pressure cooking and the like to the uncovering function can be avoided by enabling the preset pressure to be 2kPa or above 2kPa, and the use comfort of products is improved.

In any of the above technical solutions, the value of the preset pressure is 4 kPa.

In this scheme, the value that sets up pressure of predetermineeing is 4kPa, has greatly avoided the interference that normal pressure floats and cause the function of uncapping among the processes such as atmospheric pressure culinary art, simultaneously, also makes to prevent to uncap midway and protects more the security.

In any one of the above technical solutions, the cooking apparatus further includes: the second pushing piece is matched with the cover opening key; and the elastic piece is matched with the second pushing piece and the first pushing piece, so that the cover opening key applies acting force to the first pushing piece through the second pushing piece and the elastic piece.

The elastic piece is utilized to transmit stress between the second pushing piece and the first pushing piece, when the acting force applied to the elastic piece by the second pushing piece is within a certain range, the elastic piece does not deform or has small deformation amount, at the moment, the elastic piece is similar to a rigid part and plays a role in rigid transmission between the first pushing piece and the second pushing piece, when the acting force applied to the elastic piece by the second pushing piece is large, the elastic piece can absorb partial acting force applied by the second pushing piece through deformation, at the moment, the elastic piece plays a role in flexible transmission between the first pushing piece and the second pushing piece and can buffer the applied acting force, the friction blocking effect of the lock catch and the buckling part is prevented from being weakened due to impact stress, the effect of preventing the friction force from opening the cover midway is ensured to be reliable, and meanwhile, the acting force applied by the second pushing piece is absorbed by the elastic piece, compared with a rigid transmission mode, the peak value of the acting force finally acting on the first pushing piece under the same key stroke can be reduced, so that the problem of cover opening failure prevention caused by the fact that the acting force of the first pushing piece exceeds a friction force bearing range is solved, and the effect of opening the cover in midway is more reliable.

In any one of the above technical solutions, the elastic member applies a preset elastic force to the second pushing member and presses the second pushing member against the first pushing member, wherein, when a friction force between the lock catch and the fastening portion is smaller than the preset elastic force, the preset elastic force locks the first pushing member and the second pushing member to limit a relative movement between the first pushing member and the second pushing member; under the condition that the friction force between the lock catch and the buckling part is larger than or equal to the preset elastic force, the friction force between the lock catch and the buckling part limits the movement of the first pushing piece, and the cover opening key drives the second pushing piece to enable the second pushing piece to move relative to the first pushing piece and compress the elastic piece.

In the scheme, the elastic body is arranged to press the second pushing piece against the first pushing piece, so that the elastic piece locks the first pushing piece and the second pushing piece into a whole by elastic force, when the acting force of the first pushing piece and the second pushing piece for squeezing the elastic body is smaller than the preset elastic force, the whole formed by the elastic body, the second pushing piece and the first pushing piece can be equivalent to a rigid part, when the acting force of the first pushing piece and the second pushing piece for squeezing the elastic body is larger than or equal to the preset elastic force, the elastic piece is compressed and deformed, so that the first pushing piece and the second pushing piece can be separated, the whole formed by the elastic body, the second pushing piece and the first pushing piece can be equivalent to a flexible part with a buffering effect, the buffering effect is achieved, and the second pushing piece and the first pushing piece can rotate relatively.

More specifically, when the friction force is smaller than the preset elastic force, the limit supporting force of the friction force on the first pushing piece is smaller than the preset elastic force, and correspondingly, the acting force of the first pushing piece and the second pushing piece for extruding the elastic body is smaller than the preset elastic force, so that the elastic body, the second pushing piece and the first pushing piece can form a whole which is equivalent to a rigid part, the cover opening key is pressed and can drive the second pushing piece to rotate, and the second pushing piece is linked with the first pushing piece to rotate, so that the first pushing piece drives the lock catch to be unlocked with the buckling part.

When the friction force is greater than or equal to the preset elastic force, the limiting supporting force of the friction force on the first pushing piece can be greater than or equal to the preset elastic force, the cover opening key is pressed, the first pushing piece can be supported and limited by the supporting and limiting effect provided by the friction force, at the moment, the rotation of the first pushing piece is limited, and the second pushing piece can compress the elastic piece to enable the elastic piece to elastically deform, so that the second pushing piece is not limited to rotate along with the first pushing piece but relatively rotate with the first pushing piece, therefore, the cover opening key is pressed, the unlocking of the lock catch and the buckling part is not controlled, meanwhile, the pressing stroke of the cover opening key cannot be limited, namely, the pressing hand feeling of the cover opening key is normal, the use experience of the product is improved, the buffering effect is achieved between the second pushing piece and the first pushing piece by utilizing the deformation of the elastic body, and the cover opening danger of the lock catch and the buckling part, and the peak value of the acting force finally acting on the first pushing piece under the same key stroke is reduced, so that the problem of failure of the anti-uncovering caused by the fact that the acting force of the first pushing piece exceeds the friction force bearing range is solved, and the effect of uncovering the cover in midway is more reliable.

In any of the above technical solutions, the elastic member includes a torsion spring, and the torsion spring has two legs, one of which is engaged with the first urging member, and the other of which is engaged with the second urging member.

In this scheme, set up the elastic component and include the torsional spring to form the elastic support cooperation between first impeller and second impeller, and the bearing capacity of torsional spring is better, more stable, thereby can make the component of these two of first impeller and second impeller switch between flexibility and rigidity better, thereby promote the reliability of product.

In any one of the above technical solutions, the cooking apparatus further includes: the torsional spring with the connecting axle rotates and is connected.

In this scheme, set up the torsional spring and rotate with the connecting axle and be connected, like this, the assembly stability between torsional spring and first impeller and the second impeller is better to can promote the elastic support stability and the cooperation precision of torsional spring between first impeller and second impeller.

Further, the first pushing piece and the second pushing piece rotate around the connecting shaft.

In any one of the above technical solutions, the uncovering key has a preset key stroke, wherein a compression amount of the elastic member corresponding to the preset key stroke is less than or equal to a ratio of a difference between the friction force and the preset elastic force to an elastic coefficient of the elastic member.

In the scheme, the product of the compression amount and the elastic coefficient of the elastic part corresponding to the preset key stroke of the uncovering key is smaller than or equal to the difference between the friction force and the preset elastic force, so that when the friction force is larger than the preset elastic force, when the uncovering key is pressed to the bottom, the sum of the newly increased elastic force and the preset elastic force caused by the deformation of the elastic part due to the rotation of the second pushing part relative to the first pushing part is still smaller than the friction force, so that the unlocking between the lock catch and the buckling part is avoided, meanwhile, the uncovering key cannot continuously generate pressing displacement any more due to the fact that the uncovering key is pressed to the bottom, correspondingly, the second pushing part cannot continuously rotate relative to the first pushing part any more, the deformation amount of the elastic part cannot be continuously increased any more, the sum of the preset elastic force and the newly increased elastic force is strictly controlled below the friction force, midway uncovering prevention is perfectly realized.

In any one of the above technical solutions, the elastic member is connected to the first pushing member and the second pushing member, the elastic member is compressed by the relative movement of the first pushing member and the second pushing member, and the elastic member is restored by the elastic recovery to restore the relative movement between the first pushing member and the second pushing member.

In the scheme, the elastic piece is connected with the first pushing piece and the second pushing piece, for example, the elastic piece is a torsion spring, the first pushing piece is connected with one side foot of the torsion spring, and the second pushing piece is connected with the other side foot of the torsion spring.

In any of the above technical solutions, the first pushing element is rotatably disposed, the first pushing element is rotatably linked with the lock catch along a preset direction and controls the lock catch to be unlocked from the buckling portion, and friction between the lock catch and the buckling portion limits the first pushing element to rotate along a direction opposite to the preset direction.

In this scheme, rotate first impeller and second impeller and set up, no matter be synchronous rotation or relative rotation between first impeller and the second impeller like this all can have good stationarity, can drive the hasp more accurately to cooperate more accurately with the key of uncapping, promote control accuracy.

In any of the above technical solutions, the lock catch is slidably disposed, and the lock catch slides relative to the fastening portion to fasten or release the lock catch and the fastening portion.

In this scheme, slide the hasp and set up for the hasp slides in order to lock or unblock for the buckling parts, compares in the hasp rotation in order to carry out the scheme of lock locking or dropout unblock, and the hasp can guarantee more with the relatively gliding design form of buckling parts the frictional force accuracy between hasp and the buckling parts, further promotes the response precision of the pressure in frictional force and the culinary art intracavity, thereby further promotes and prevents the reliability of uncapping.

In any of the above technical solutions, the lock catch has a first mating surface, the fastening portion has a second mating surface, the lock catch and the fastening portion are fastened so that the first mating surface is opposite to the second mating surface, and the first mating surface and the second mating surface are adapted to abut against each other when the pressure in the cooking cavity is greater than or equal to a preset pressure.

In this scheme, set up hasp and buckling parts and form face contact cooperation or support through first fitting surface and second fitting surface and lean on, can promote the frictional force threshold value between hasp and the buckling parts like this, further strengthen preventing uncapping reliability.

In any of the above technical solutions, the upper cover is provided with one or more latches; the upper cover is provided with a transmission part, the transmission part is connected with one or more lock catches, and the first pushing part acts on the transmission part and drives the transmission part to move, so that the transmission part is linked with the lock catches connected with the transmission part.

In this scheme, set up the driving medium, promote the driving medium through first impeller, further promote the hasp through the driving medium to realize first impeller via driving medium control hasp motion, with unblock or locking between corresponding control hasp and the buckling parts, such design makes the position overall arrangement between first impeller and the hasp more nimble, more makes things convenient for the assembly of product part.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view of a cooking apparatus according to an embodiment of the present invention;

fig. 2 is a partially enlarged structural schematic view of the cooking apparatus shown in fig. 1;

FIG. 3 is another cross-sectional structural schematic view of the cooking apparatus shown in FIG. 1;

FIG. 4 is an enlarged schematic view of the portion A shown in FIG. 3;

fig. 5 is a schematic view of a partially enlarged structure of a cooking apparatus according to an embodiment of the present invention;

fig. 6 is a schematic view of a partial structure of the cooking apparatus shown in fig. 1;

fig. 7 is a schematic cross-sectional view of a cooking apparatus according to an embodiment of the present invention;

fig. 8 is a partially enlarged structural schematic view of the cooking apparatus shown in fig. 7;

fig. 9 is a schematic cross-sectional view of a cooking apparatus according to an embodiment of the present invention;

FIG. 10 is an enlarged schematic view of the portion B shown in FIG. 9;

fig. 11 is a schematic view of a partial structure of the cooking apparatus shown in fig. 7;

fig. 12 is a schematic view of an assembly structure of the driving member and the slider according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 12 is:

100 inner pan, 110 buckling part, 111 second matching surface, 200 upper cover, 201 inner cover, 202 cover plate, 210 lock catch, 211 hooking part, 2111 first matching surface, 212 slide block, 2121 sliding part, 220 transmission part, 221 abutting part, 222 sliding groove, 230 limiting slide block, 240 cover opening slide block, 250 reset spring, 300 cooking cavity, 400 cooker body, 410 triggering part, 500 flexible transmission mechanism, 510 connecting shaft, 520 first pushing part, 530 second pushing part, 540 elastic part and 600 cover opening key.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

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.

Cooking apparatuses according to some embodiments of the present invention are described below with reference to fig. 1 to 12.

As shown in fig. 1, 2, 3 and 4, an embodiment of the present invention provides a cooking apparatus, including: the inner pot 100, the upper lid 200, the first pusher 520, and the lid opening key 600.

Specifically, the inner pot 100 is provided with a buckling part 110; the upper cover 200 is adapted to cover the inner pot 100, such that the inner pot 100 and the upper cover 200 enclose the cooking cavity 300, the upper cover 200 is provided with a latch 210, and the latch 210 is adapted to latch with the latch 110 to lock the upper cover 200 and the inner pot 100; the first pushing part 520 is movably arranged, and the first pushing part 520 is configured to transmit force between the cover opening key 600 and the lock catch 210, wherein the cover opening key 600 is configured to drive the first pushing part 520 to move, so that the first pushing part 520 is linked with the lock catch 210 and controls the lock catch 210 to be unlocked from the buckling part 110; wherein, the pressure in the cooking cavity 300 is greater than or equal to the preset pressure, so that the lock catch 210 and the buckling part 110 abut against each other, and the friction force between the lock catch 210 and the buckling part 110 limits the movement of the first pushing member 520.

The cooking apparatus provided by the above embodiment of the present invention, the first pushing element 520 is in transmission connection with the lock catch 210, and under the condition that the pressure in the cooking cavity 300 is less than the preset pressure, the lid opening key 600 is pressed to drive the first pushing element 520 to move, so that the first pushing element 520 is linked with the lock catch 210 to control the lock catch 210 to unlock with the fastening part 110 of the inner pot 100, under the condition that the pressure in the cooking cavity 300 is greater than or equal to the preset pressure, friction force can be generated between the lock catch 210 and the fastening part 110, and the movement of the lock catch 210 is limited by the friction force between the lock catch 210 and the fastening part 110, so that the movement of the first pushing element 520 is reversely limited by the linkage cooperation of the lock catch 210 and the first pushing element 520, at this time, the lid opening key 600 is pressed to unlock with the fastening part 110 of the inner pot 100, thereby realizing the lid opening prevention self-locking along with the rise of the inner pressure, preventing the danger of opening the cover halfway.

Compared with the traditional structure which is provided with the midway anti-uncovering mechanism independently, the design utilizes the lock catch 210 and the buckling part 110 to be buckled to form friction force, the automatic locking of the lock catch 210 and the buckling part 110 is realized, the friction force is further utilized as a power source to brake the first pushing part 520, the use way of uncovering through the uncovering key 600 is blocked midway, the product is more reliable and safer, the structure can be obtained by the transformation of the existing structure easily, the independent mechanism does not need to be added, and the cost of the product is greatly saved. Compared with the traditional structure that a midway lid opening prevention mechanism is arranged between the cooker body 400 and the upper lid 200, the structure has the advantages that the number of parts of the product is simplified, the cost is saved, meanwhile, the forming position of the friction force is limited between the buckling part 110 of the inner pot 100 and the lock catch 210 of the upper lid 200, in this way, the response precision between the friction force and the pressure in the cooking cavity 300 is higher, the realized midway lid opening prevention effect is better and more accurate, and the safety level of the product is further improved.

In the above embodiment, optionally, the first pushing member 520 is rotatably disposed, the first pushing member 520 rotates the interlocking lock 210 in a predetermined direction (e.g., counterclockwise rotation) and controls the lock 210 to unlock with the fastening portion 110, and the friction between the lock 210 and the fastening portion 110 limits the rotation of the first pushing member 520 in a direction opposite to the predetermined direction (e.g., clockwise rotation). Of course, the clockwise and counterclockwise directions of the foregoing examples may be interchanged, as desired.

Example 1:

in addition to the features of any of the embodiments described above, there is further defined: the preset pressure ranges from 2kPa (kilopascal) to 6 kPa. Through making preset pressure be below 6kPa or 6kPa, can form well midway and prevent uncapping protection, greatly avoid uncapping danger, through making preset pressure be more than 2kPa or 2kPa, can avoid normal pressure that ordinary pressure culinary art etc. in-process floats to uncapping the interference that the function caused, promote the use comfort of product.

Preferably, the preset pressure ranges from 3kPa (kilopascal) to 4.9 kPa.

Preferably, the value of the preset pressure is 4 kPa. The interference of normal pressure floating in the normal pressure cooking process and the like to the uncovering function is greatly avoided, and meanwhile, the midway uncovering prevention protection is more guaranteed.

Example 2:

as shown in fig. 2, in addition to the features of any of the above embodiments, further defined are: the cooking apparatus further includes a link shaft 510, a second pushing member 530, and an elastic member 540.

The first pushing member 520 is rotationally connected with the connecting shaft 510; the second pushing member 530 is rotatably connected with the connecting shaft 510 and is in transmission fit with the cover opening key 600; the elastic member 540 presses the second pushing member 530 against the first pushing member 520 and applies a predetermined elastic force to the second pushing member 530. Thus, the elastic member 540 locks the first pushing member 520 and the second pushing member 530 into a whole by the elastic force, when the acting force of the first pushing member 520 and the second pushing member 530 on the elastic body is less than the preset elastic force, the whole formed by the elastic body, the second pushing member 530 and the first pushing member 520 can be equivalent to a rigid part, when the acting force of the first pushing member 520 and the second pushing member 530 on the elastic body is more than or equal to the preset elastic force, the elastic member 540 is compressed and deformed, so that the first pushing member 520 and the second pushing member 530 can be separated, the whole formed by the elastic body, the second pushing member 530 and the first pushing member 520 can be equivalent to a flexible part with a buffering function, so as to play a buffering role, and the second pushing member 530 and the first pushing member 520 can rotate relatively.

As shown in fig. 8, when the friction force between the latch 210 and the fastening portion 110 is smaller than the predetermined elastic force, the predetermined elastic force limits the relative rotation between the first pushing member 520 and the second pushing member 530, so that the rotation of the second pushing member 530 links the first pushing member 520. In more detail, when the friction force is smaller than the preset elastic force, the limited supporting force of the friction force on the first pushing member 520 is smaller than the preset elastic force, and accordingly, the acting force of the first pushing member 520 and the second pushing member 530 on pressing the elastic body is smaller than the preset elastic force, so that the elastic body, the second pushing member 530 and the first pushing member 520 form a whole which can be equivalent to a rigid part, the cover opening key 600 is pressed to drive the second pushing member 530 to rotate, and the second pushing member 530 is linked with the first pushing member 520 to rotate, that is, as shown in fig. 8, so that the cover opening key 600 drives the elastic body, the second pushing member 530 and the first pushing member 520 to rotate around the connecting shaft 510 to the m direction, and the first pushing member 520 drives the lock catch 210 to unlock the buckling part 110.

When the friction force between the lock catch 210 and the buckling part 110 is greater than or equal to the predetermined elastic force, the friction force between the lock catch 210 and the buckling part 110 limits the rotation of the first pushing member 520, and the second pushing member 530 rotates relative to the first pushing member 520 and compresses the elastic member 540. In more detail, when the friction force is greater than or equal to the preset elastic force, the limiting supporting force of the friction force on the first pushing member 520 may be greater than or equal to the preset elastic force, the cover opening key 600 is pressed, the first pushing member 520 is supported and limited by the supporting limiting effect provided by the friction force, at this time, the rotation of the first pushing member 520 is limited, and the second pushing member 530 compresses the elastic member 540 to elastically deform the elastic member 540, so that the second pushing member 530 does not rotate with the first pushing member 520, but rotates relative to the first pushing member 520, thus, when the cover opening key 600 is pressed but the lock catch 210 and the buckling part 110 are not unlocked, the pressing stroke of the cover opening key 600 is not limited, that is, the pressing hand feeling of the cover opening key 600 is as normal, the use experience of the product is improved, and the elastic body deformation is utilized to play a role of buffering between the second pushing member 530 and the first pushing member 520, the risk of opening the cover due to the external impact stress that unlocks the latch 210 from the engaging part 110 is avoided.

Preferably, the elastic member 540 includes a torsion spring having two legs, one of which acts on the first pushing member 520 and the other of which acts on the second pushing member 530. In this way, an elastic supporting fit can be more easily formed between the first pushing member 520 and the second pushing member 530 which are rotatably arranged with each other, and the bearing capacity of the torsion spring is better and more stable, so that the members of the first pushing member 520 and the second pushing member 530 can be better switched between flexibility and rigidity, thereby improving the reliability of the product.

Preferably, the torsion spring is rotatably connected to the connecting shaft 510. For example, a torsion spring is inserted outside the connection shaft 510. In this way, the assembling stability between the torsion spring and the first pushing member 520 and the second pushing member 530 is better, so that the elastic supporting stability and the matching precision of the torsion spring between the first pushing member 520 and the second pushing member 530 can be improved.

Example 3:

as shown in fig. 2, in addition to the features of any of the above embodiments, further defined are: the uncovering key 600 has a preset key stroke, wherein the compression amount of the elastic member 540 corresponding to the preset key stroke is less than or equal to the ratio of the difference between the friction force and the preset elastic force to the elastic coefficient of the elastic member 540.

In other words, the uncovering key 600 is movable between a first position and a second position, and the movement stroke of the uncovering key 600 between the first position and the second position is a preset stroke, wherein the uncovering key 600 is an initial position which is not pressed at the first position, and the second position is a position which is pressed to the bottom, and the friction force, the preset elastic force and the preset stroke are controlled to satisfy the following requirements: under the condition that the friction force is greater than or equal to the preset elastic force, when the uncovering key 600 reaches the second position, the sum of the product of the deformation amount of the elastic piece 540 compressed by the second pushing piece 530 and the elastic coefficient thereof and the preset elastic force is less than the friction force.

It is understood that the preset key stroke is a stroke of the open key 600 from an initial state (not pressed) to a depressed lowest point, or a stroke of the open key 600 from the depressed lowest point to the initial state.

As for the compression amount of the elastic member 540 corresponding to the preset key stroke, it can be understood that, in the case that the first pushing member 520 is supported by friction force to limit the rotation of the first pushing member 520, the uncapping key 600 drives the second pushing member 530 to rotate by a corresponding angle relative to the first pushing member 520 in the process of reaching the lowest depression point from the initial state (where the uncapping key is not depressed), and in the process of rotating by the corresponding angle, the elastic member 540 is compressed to generate a corresponding compression amount of the elastic member 540, where the corresponding compression amount is the compression amount of the elastic member 540 corresponding to the preset key stroke.

Regarding the elastic coefficient of the elastic member 540, taking the torsion spring as an example, the elastic coefficient is a parameter determined according to the material, the cross-sectional area, the number of turns in the unit length, and the like of the torsion spring, it can be understood that the elastic coefficients of different types of torsion springs are different, and therefore, the elastic coefficient of the elastic member 540 is not a specific certain value or value interval, but a value determined according to the specific elastic member 540, and can also be macroscopically understood according to the spring principle (the elastic force is equal to the product of the elastic coefficient and the deformation).

In the present embodiment, the product of the compression amount and the elastic coefficient of the elastic member 540 corresponding to the preset key stroke of the open-cover key 600 is less than or equal to the difference between the friction force and the preset elastic force, so that, for the case that the friction force is greater than the preset elastic force, when the open-cover key 600 is pressed to the bottom, the sum of the newly increased elastic force and the preset elastic force resulting from the deformation of the elastic member 540 due to the rotation of the second pushing member 530 relative to the first pushing member 520 is still less than the friction force, thereby avoiding the unlocking between the latch 210 and the buckling part 110, and meanwhile, because the open-cover key 600 is pressed to the bottom, the open-cover key 600 cannot continue to generate the pressing displacement any more, accordingly, the second pushing member 530 cannot continue to rotate relative to the first pushing member 520, the deformation amount of the elastic member 540 does not continue to increase, the sum of the preset elastic force and the newly increased elastic force is strictly controlled below the, the safety level of the product is improved.

Example 4:

the difference from the above embodiment 3 is that the first pushing member 520 in this embodiment can move in a displacement manner instead of the rotational movement described above, so that the torsion spring can be replaced with a telescopic spring accordingly.

Example 5:

the difference from the above embodiment 3 is that the present embodiment defines: the elastic member is connected with the first pushing member 520 and the second pushing member 530, the elastic member is compressed by the relative movement of the first pushing member 520 and the second pushing member 530, and the elastic member is restored to restore the relative movement between the first pushing member 520 and the second pushing member 530.

For example, the elastic member is a torsion spring, the first pushing member 520 is connected to one leg of the torsion spring, and the second pushing member 530 is connected to the other leg of the torsion spring, so that the torsion spring serves as a connecting member to connect the first pushing member 520 and the second pushing member 530, and the requirement of rigid and flexible connection between the first pushing member 520 and the second pushing member 530 is met.

The first pushing member 520 rotates around the torsion spring along the predetermined direction to link the lock catch 210 and control the lock catch 210 to unlock with the buckling part 110, and the friction between the lock catch 210 and the buckling part 110 limits the rotation of the first pushing member 520 around the torsion spring along the opposite direction of the predetermined direction.

Optionally, according to requirements, compared with embodiment 3, this embodiment may further achieve elimination of a connecting shaft for rotationally connecting the first pushing member, thereby simplifying the product composition.

Optionally, according to the requirement, a connecting shaft may be provided, and the torsion spring is sleeved on the connecting shaft so that the torsion spring is stably assembled, and further, the first pushing member 520 and the second pushing member 530 which are installed through the torsion spring are stably assembled.

Example 6:

as shown in fig. 4 and 10, in addition to the features of any of the above embodiments, further defined are: the latch 210 is slidably disposed, and the latch 210 slides relative to the engaging portion 110 to engage or disengage the two. The lock catch 210 is arranged in a sliding manner, so that the lock catch 210 slides relative to the buckling part 110 to be locked or unlocked, and compared with a scheme that the lock catch 210 rotates to be locked or unlocked, the design form that the lock catch 210 and the buckling part 110 slide relative to each other can ensure the accuracy of the friction force between the lock catch 210 and the buckling part 110, and further improve the response precision of the friction force and the pressure in the cooking cavity 300, so that the reliability of preventing the cover from being opened is further improved.

In more detail, as shown in fig. 3, 4, 9 and 10, the latch 210 includes a hooking portion 211 and a slider 212, the hooking portion 211 is used for being buckled or released with the buckling portion 110, the slider 212 is slidably connected with the upper cover 200 to realize a sliding arrangement, and the hooking portion 211 is connected to the slider 212 and slides with the slider 212.

Example 7:

as shown in fig. 4, in addition to the features of any of the above embodiments, further defined are: the lock 210 has a first mating surface 2111, the engaging portion 110 has a second mating surface 111, the lock 210 and the engaging portion 110 are engaged such that the first mating surface 2111 is opposite to the second mating surface 111, and the first mating surface 2111 and the second mating surface 111 are adapted to abut against each other when the pressure in the cooking cavity 300 is greater than or equal to a predetermined pressure. The lock catch 210 and the buckling portion 110 are arranged to form surface contact fit or abut against through the first matching surface 2111 and the second matching surface 111, so that the friction force threshold between the lock catch 210 and the buckling portion 110 can be improved, and the reliability of preventing the cover from being opened is further enhanced.

In more detail, a pot rim protruding outward is formed on the outer circumference of the pot opening of the inner pot 100, the pot rim is formed as the fastening part 110, the lock catch 210 has a hooking part 211, and the hooking part 211 is hooked to the lower surface of the pot rim to lock the upper cover 200 and the inner cover 201. As shown in fig. 4, when the hooking portion 211 is hooked on the rim, the first engagement surface 2111 is opposite to the second engagement surface 111, and the inner pressure of the cooking cavity 300 rises, the upper cover 200 floats upwards to enable the first engagement surface 2111 to be attached to the second engagement surface 111 to form a mutual abutment, so that when the hooking portion 211 slides outwards to be disengaged from the rim to realize a disengagement, a friction force can be generated between the first engagement surface 2111 and the second engagement surface 111 to limit the disengagement of the hooking portion 211.

Example 8:

as shown in fig. 6, 11 and 12, in addition to the features of any of the above embodiments, further defined are: the upper cover 200 is provided with a transmission member 220, the transmission member 220 is connected with the lock catch 210, and the first pushing member 520 acts on the transmission member 220 and drives the transmission member 220 to move, so that the transmission member 220 is linked with the lock catch 210 connected therewith. Due to the design, the arrangement position of the first pushing member 520 can be kept away from the inner pot 100, so that the position layout between the first pushing member 520 and the lock catch 210 can be more flexible, and the assembly of product parts is more convenient.

Optionally, the upper cover 200 is provided with one or more latches 210; the transmission member 220 is connected to one or more latches 210.

For example, as described in the above description of the cover 200 having two lock catches 210, the transmission member 220 is connected to the two lock catches 210, so that the friction force between the two lock catches 210 and the corresponding buckling parts 110 can be intensively supported and limited by the transmission member 220 to the first pushing member 520, thereby improving the reliability of the limitation of the first pushing member 520.

Further, as shown in fig. 12, the transmission member 220 is provided with two sliding grooves 222, the sliding block 212 of each lock catch 210 is provided with a sliding portion 2121, the sliding portion 2121 extends into the sliding groove 222, and the sliding portion 2121 slides along the sliding groove 222 and is guided by the sliding groove 222.

In more detail, as shown in fig. 12, the driving member 220 moves in the y1 direction, one of the two sliding slots 222 extends in the x2 direction and the other extends in the x3 direction, and the x2 direction and the x3 direction are respectively inclined with respect to the y1 direction, so that the driving member 220 and the slider 212 of the latch 210 form a driving similar to a cam mechanism. Thus, for the sliding of the two latches 210 (see the slider 212A and the slider 212B in fig. 12 in particular), during the movement of the transmission member 220 in the y1 direction, the slider 212A can be driven to move in the y2 direction perpendicular to the y1 direction, and at the same time, the slider 212B is driven to move in the y3 direction perpendicular to the y1 direction, and a movement trend is formed to urge the slider 212A and the slider 212B to approach or move away from each other, so as to control the latching or unlatching of the latches 210 with the inner pot 100.

More specifically, as shown in fig. 6, when the transmission member 220 moves in the y11 direction, the driving slider 212A moves in the y21 direction, and the driving slider 212B moves in the y31 direction, so that the slider 212A and the slider 212B approach each other to lock with the inner pot 100, wherein the locked state of the lock catch 210 and the inner pot 100 can be specifically seen in fig. 3, 4 and 5. Further, as shown in fig. 3 and 4, in the case that the pressure in the cooking cavity 300 is low, the upper cover 200 is not floated, and at this time, the first mating surface 2111 of the lock catch 210 and the second mating surface 111 of the engaging portion 110 of the inner pot 100 are in a vertically separated state, which is beneficial to reduce friction between the lock catch 210 and the engaging portion 110 during sliding, thereby reducing driving loss and reducing wear of the lock catch 210 and the engaging portion 110. As shown in fig. 5, in the case of pressure rise in the cooking cavity 300, at this time, the upper lid 200 floats, so that the first mating surface 2111 of the lock catch 210 abuts against the second mating surface 111 of the engaging portion 110 of the inner pot 100, the lock catch 210 is tightly fitted with the engaging portion 110, and friction between the lock catch 210 and the engaging portion 110 can limit the lock catch 210 to be disengaged and the first pushing member 520 to be rotated, thereby preventing dangerous opening of the lid halfway.

As shown in fig. 11, when the transmission member 220 moves in the y12 direction, the driving slider 212A moves in the y22 direction, and the driving slider 212B moves in the y32 direction, so that the slider 212A and the slider 212B move away from each other to unlock the inner pot 100, wherein the unlocked state of the lock catch 210 and the inner pot 100 can be seen in fig. 9 and 10. At this time, the locking hooks 210 avoid the engaging parts 110 of the inner pot 100, so that the locking hooks 210 do not collide with the engaging parts 110 of the inner lid 201 when opening or closing the lid. As shown in fig. 8, the driving member 220 is provided with an abutting portion 221, the abutting portion 221 is disposed opposite to the first pushing member 520, when the friction force between the latch 210 and the fastening portion 110 is smaller than the preset elastic force, the lid opening key 600 is linked with the first pushing member 520, so that the first pushing member 520 rotates around the connecting shaft along the m direction, and the first pushing member 520 can act on the abutting portion 221 during the rotation process, so as to link the driving member 220 to move, that is, to drive the driving member 220 along the y12 direction.

Generally speaking, this structure passes through hasp 210 slip setting, and like this, the frictional force between hasp 210 and the buckling parts 110 forms the effect better, can restrict hasp 210 and the tripping of buckling parts 110 in the optimization, realizes forming the natural locking along with the pressure in culinary art chamber 300 and prevents uncapping, and frictional force can restrict first impeller 520 in turn simultaneously and rotate, prevents that the internal pressure of culinary art chamber 300 from uncapping through uncapping key 600 when predetermineeing pressure and above, realizes preventing to uncap the protection midway.

In any of the above embodiments, the cooking device may be selected from a pressure cooker, a steam oven, and the like.

The specific embodiment is as follows:

as shown in fig. 1 to 12, the cooking apparatus provided in the present embodiment includes an upper cover 200, a pot body 400, an inner pot 100, an opening key 600, a lock catch 210, a transmission member 220, a return spring 250, a flexible transmission mechanism 500, and the like.

The upper cover 200 specifically includes an inner cover 201, a cover plate 202, and the like, the upper cover 200 and the cooker body 400 can be closed or opened, the inner pot 100 is accommodated in the cooker body 400, and when the upper cover 200 and the cooker body 400 are closed, the inner pot 100 and the cover plate 202 of the upper cover 200 enclose the cooking cavity 300.

The lock catch 210 and the transmission member 220 are disposed on the inner lid 201, specifically, the lock catch 210 includes a slider 212 and a hooking portion 211, the slider 212 and the hooking portion 211 are fixed together, the slider 212 and the transmission member 220 of the lock catch 210 are respectively slidably connected to the inner lid 201, the transmission member 220 and the sliding portion form a movable fit via a sliding portion 2121 and a sliding slot 222, and the transmission member 220 slides back and forth and can be linked to slide the lock catch 210 to the left and right sides of the transmission member 220, so that the hooking portion 211 of the lock catch 210 and the engaging portion 110 of the inner pot 100 are locked or released, or locked or unlocked.

The inner cover 201 is provided with a return spring 250, and the return spring 250 elastically supports the transmission member 220 to provide power for the transmission member 220, so that the transmission member 220 always keeps a tendency of moving inwards under the action of the return spring 250, that is, the transmission member 220 always keeps a tendency of moving towards the locking direction of the driving lock catch 210.

The inner lid 201 is provided with a limit slider 230 and a lid opening slider 240, which are connected to the inner lid 201 through springs, respectively, and float with respect to the inner lid 201 as the springs extend and retract, respectively. The pot body 400 is provided with a trigger part 410.

The flexible transmission mechanism 500 and the lid opening key 600 are disposed on the pot body 400, and the flexible transmission mechanism 500 includes a connecting shaft 510, a first pushing member 520, a second pushing member 530, an elastic member 540 (which may be a torsion spring, but may be replaced by other springs, such as a telescopic spring, an elastic sheet, etc.), and the like. The first pushing member 520 can rotate around the connecting shaft 510, and the second pushing member 530 and the first pushing member 520 are attached together into a whole under the action of the torsion spring.

The cover opening and closing process of the cooking device in the embodiment is as follows:

(Cap opening Process)

When the friction force between the latch 210 and the engaging portion 110 is less than the predetermined elastic force of the torsion spring (e.g., normal pressure or low pressure inside the cooking chamber 300):

the cover opening key 600 is pressed to push the second pushing member 530 to rotate around the connecting shaft 510, the second pushing member 530 is linked with the first pushing member 520, so that the first pushing member 520 rotates around the connecting shaft 510, in the rotating process of the first pushing member 520, the first pushing member acts on the abutting portion 221, the transmission member 220 and the cover opening slider 240 are pushed to move outwards (as shown in fig. 8), and the transmission member 220 drives the slider 212 to move outwards, so that the lock catch 210 and the buckling portion 110 are disengaged to realize unlocking.

When the door opening key 600 is released, the first pushing member 520 and the second pushing member 530 are reset by the force of the torsion spring.

When the friction force between the latch 210 and the engaging portion 110 is greater than or equal to the predetermined elastic force of the torsion spring (e.g., when the pressure in the cooking chamber 300 is greater than or equal to the predetermined pressure):

during cooking, the pressure of the inner pot 100 is increased, the cover plate 202 moves upwards under the pressure action of the cooking cavity 300 to drive the lock catch 210 to move upwards, the lock catch 210 is attached to the lower surface of the flange edge of the inner pot 100, the lock catch 210 generates friction force moving in the horizontal direction, and at the moment, the transmission part 220 cannot move under certain small force.

Under the action of the friction force of the lock catch 210, the transmission member 220 cannot move under a certain small pushing force, so that when the cover opening key 600 is pressed, the first pushing member 520 and the second pushing member 530 are separated, at this time, the first pushing member 520 is still kept at the original position (reset position) and cannot push the transmission member 220, and accordingly, the lock catch 210 is kept in a buckling state.

Preferably, the predetermined pressure (also called lid opening prevention pressure) is 2kPa to 6kPa, and more preferably 4kPa, and the frictional force generated by the lock catch 210 is larger than the torsion force of the torsion spring, so that the second pushing member 530 rotates while the first pushing member 520 is maintained at the original position.

(locking process)

It should be noted that, during the door opening process, after the first pushing member 520 rotates and pushes the transmission member 220 and the door opening slider 240 to move outward (as shown in fig. 8), the limiting slider 230 moves downward under the force of its spring and engages with the door opening slider 240, so that the limiting slider 230 is limited by the door opening slider 240 to prevent the limiting slider 230 from moving upward. At this time, the abutting portion 221 of the transmission member 220 is abutted and limited by the limiting slider 230, so as to limit the inward movement of the transmission member 220, thereby maintaining the locking of the locking device 210 with the fastening portion 110.

In this way, the user only needs to cover the upper cover 200 to the pot body 400, so that the trigger part 410 of the pot body 400 acts on the cover opening slider 240, the cover opening slider 240 is disengaged from the limit slider 230, and the limit slider 230 moves upward to release the limit to the transmission member 220 (as shown in fig. 2). At this time, since the limit of the transmission member 220 is released, the return spring 250 releases the elastic potential energy and drives the transmission member 220 to move inwards, so that the transmission member 220 drives the lock catch 210 to be locked with the buckling part 110, and the locking of the inner pot 100 and the lock catch 210 is controlled by self-locking when the upper cover 200 and the cooker body 400 are covered, and the operation is convenient.

To sum up, the utility model provides a cooking equipment compares in traditional structure of addding midway mechanism of preventing uncapping alone, and this design utilizes hasp and lock portion lock to form frictional force, when realizing hasp and the automatic locking of lock portion, further utilizes frictional force to supply the braking to first impeller as the power source, blocks the use way of uncapping midway through the key of uncapping, and the product is more reliable safer, and this structure can be obtained through current structural transformation easily, need not to add solitary mechanism, has practiced thrift the cost of product greatly. Compared with the traditional structure that the midway anti-uncovering mechanism is arranged between the cooker body and the upper cover, the structure has the advantages that the number of parts of a product is simplified, the cost is saved, meanwhile, the forming position of friction force is limited between the buckling part of the inner pot and the lock catch of the upper cover, therefore, the response precision between the friction force and the pressure in the cooking cavity is higher, the realized midway anti-uncovering effect is better and more accurate, and the safety level of the product is further improved.

In the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "y 1", "y 2", "y 3", "y 11", "y 21", "y 31", "y 12", "y 22", "y 32", "x 2", "x 3", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of description and simplification of description, and do not indicate or imply that the device or unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by 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 protection scope of the present invention.

Claims (13)

1. A cooking apparatus, characterized by comprising:

the inner pot is provided with a buckling part;

the upper cover is suitable for covering the inner pot, so that the inner pot and the upper cover enclose a cooking cavity, and the upper cover is provided with a lock catch which is suitable for being buckled with the buckling part to lock the upper cover and the inner pot;

the first pushing piece is movably arranged;

the cover opening key is configured to transmit force between the cover opening key and the lock catch, and the cover opening key is configured to drive the first pushing piece to move, so that the first pushing piece is linked with the lock catch and controls the lock catch to be unlocked from the buckling part;

the pressure in the cooking cavity is larger than or equal to a preset pressure, so that the lock catch and the buckling part are abutted against each other, and the first pushing piece is limited to move by the friction force between the lock catch and the buckling part.

2. The cooking apparatus of claim 1,

the value range of the preset pressure is 2 kPa-6 kPa.

3. The cooking apparatus of claim 2,

the value of the preset pressure is 4 kPa.

4. The cooking apparatus according to any one of claims 1 to 3, further comprising:

the second pushing piece is matched with the cover opening key;

and the elastic piece is matched with the second pushing piece and the first pushing piece, so that the cover opening key applies acting force to the first pushing piece through the second pushing piece and the elastic piece.

5. Cooking apparatus according to claim 4,

the elastic member applies a predetermined elastic force to the second urging member and presses the second urging member against the first urging member, wherein,

under the condition that the friction force between the lock catch and the buckling part is smaller than the preset elastic force, the preset elastic force locks the first pushing piece and the second pushing piece so as to limit the relative motion between the first pushing piece and the second pushing piece;

under the condition that the friction force between the lock catch and the buckling part is larger than or equal to the preset elastic force, the friction force between the lock catch and the buckling part limits the movement of the first pushing piece, and the cover opening key drives the second pushing piece to enable the second pushing piece to move relative to the first pushing piece and compress the elastic piece.

6. Cooking apparatus according to claim 5,

the elastic part comprises a torsion spring which is provided with two side legs, wherein one side leg is matched with the first pushing part, and the other side leg is matched with the second pushing part.

7. The cooking apparatus of claim 6, further comprising:

the torsional spring with the connecting axle rotates and is connected.

8. Cooking apparatus according to claim 5,

the uncovering key is provided with a preset key stroke, wherein the compression amount of the elastic part corresponding to the preset key stroke is smaller than or equal to the ratio of the difference between the friction force and the preset elastic force to the elastic coefficient of the elastic part.

9. Cooking apparatus according to claim 4,

the elastic piece is connected with the first pushing piece and the second pushing piece, the elastic piece is compressed by the relative movement of the first pushing piece and the second pushing piece, and the elastic piece is restored by the elastic recovery to enable the relative movement between the first pushing piece and the second pushing piece to reset.

10. The cooking apparatus according to any one of claims 1 to 3,

the first pushing piece is arranged in a rotating mode, the first pushing piece rotates along a preset direction to link the lock catch and control the lock catch and the buckling part to be unlocked, and friction force between the lock catch and the buckling part limits the first pushing piece to rotate along the direction opposite to the preset direction.

11. The cooking apparatus according to any one of claims 1 to 3,

the lock catch is arranged in a sliding mode, and the lock catch slides relative to the buckling part to enable the lock catch and the buckling part to be buckled or released.

12. The cooking apparatus according to any one of claims 1 to 3,

the lock catch is provided with a first matching surface, the buckling part is provided with a second matching surface, the lock catch and the buckling part are buckled to enable the first matching surface to be opposite to the second matching surface, and the first matching surface and the second matching surface are matched to be mutually abutted under the condition that the pressure in the cooking cavity is greater than or equal to the preset pressure.

13. The cooking apparatus according to any one of claims 1 to 3,

the upper cover is provided with one or more lock catches;

the upper cover is provided with a transmission part, the transmission part is connected with one or more lock catches, and the first pushing part acts on the transmission part and drives the transmission part to move, so that the transmission part is linked with the lock catches connected with the transmission part.

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