CN114293854A

CN114293854A - Microwave cooking equipment's lock structure and microwave cooking equipment

Info

Publication number: CN114293854A
Application number: CN202210229752.XA
Authority: CN
Inventors: 姚青; 刘子厚; 付远华
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-04-08
Anticipated expiration: 2042-03-10
Also published as: CN114293854B

Abstract

The invention relates to a door lock structure of microwave cooking equipment and microwave cooking equipment, wherein a left locking block is convexly arranged on the left side of the inner surface of the upper end of a door body, a right locking block is convexly arranged on the right side of the inner surface of the upper end of the door body, a left locking opening and a right locking opening are respectively arranged at the upper end of a surface lining plate, and the rear surface of the upper end of the face liner plate is respectively provided with a left lock rod and a right lock rod, the left lock rod and the right lock rod respectively extend left and right, each lock rod is respectively sleeved with a return spring, the left lock block and the right lock block are respectively provided with a left lock hole and a right lock hole, the door body is closed on the opening of the inner container, and the wave stirring motor is not in working state, the left lock rod is positioned at the inner side of the left lock block, the right lock rod is positioned at the inner side of the right lock block, and when the wave stirring motor is in a working state, at least one lock rod can be driven by the wave stirring motor to be inserted into the corresponding lock hole, and the return spring on the lock rod is compressed and causes the lock rod to have a tendency to disengage from the corresponding lock hole. The invention can avoid the door body from being opened by mistake and the microwave leakage, and the control of the locking and unlocking of the door body is safe and reliable.

Description

Microwave cooking equipment's lock structure and microwave cooking equipment

Technical Field

The invention relates to the field of cooking equipment, in particular to a door lock structure of microwave cooking equipment and the microwave cooking equipment.

Background

For example, chinese utility model patent No. ZL202121695539.5 (publication No. CN 215533679U) discloses a cooking device, chinese invention patent No. CN202110703554.8 (publication No. CN 113273904A) discloses a cooking device, and chinese utility model patent No. ZL202121190889.6 (publication No. CN 215226742U) discloses a cooking device.

The microwave has certain radiativity, and in order to avoid microwave leakage in the microwave cooking process, the safety in use of a user is ensured, and the door body of the cooking equipment needs to be locked so as to avoid mistakenly opening the door body in the cooking process. At present, the door body is mainly locked by the following methods: (1) the door hook is matched with the door lock; (2) the mode of an electromagnetic lock. The first mode requires a large force to open the door, and the user experience is not good; in the second mode, the electromagnetic lock fails, so that the safety is not high.

In addition, multiple cooking functions (such as a microwave function, a steaming function, a baking function and the like) of the existing integrated cooking equipment (such as a steaming and baking micro-cooking machine and the like) are performed in the same cooking cavity, and different cooking temperatures can cause the difference of the compression amount of the door body sealing ring and the aggravated microwave leakage problem, especially when other cooking functions and the microwave functions are performed continuously.

Disclosure of Invention

The first technical problem to be solved by the invention is to provide a door lock structure of microwave cooking equipment, which can prevent a door body from being opened by mistake during a microwave function.

The second technical problem to be solved by the present invention is to provide a door lock structure of microwave cooking equipment, which can prevent a door body from being opened by mistake during a microwave function and prevent microwave from leaking, in view of the prior art.

The third technical problem to be solved by the invention is to provide a door lock structure of microwave cooking equipment, which can prevent a door body from being opened by mistake during a microwave function and prevent microwave leakage, and the locking and unlocking control of the door body is synchronous with the starting and stopping of the microwave function.

The fourth technical problem to be solved by the present invention is to provide a microwave cooking apparatus with the door lock structure, aiming at the prior art.

The technical scheme adopted by the invention for solving at least one technical problem is as follows: a door lock structure of microwave cooking equipment comprises an inner container, a door body and a microwave assembly, wherein the front end of the inner container is opened, a surface lining plate is arranged on the outer periphery of the opening of the inner container, a sealing ring is arranged on the inner periphery of the surface lining plate along the circumferential direction and is arranged on the opening edge of the opening of the inner container in a surrounding manner, the door body can cover the opening of the inner container, the door body is clamped between the door body and the surface lining plate in a closing manner under the state of the door body on the opening of the inner container, the microwave assembly comprises a wave stirring motor which is arranged on the top of the inner container and is used for driving a wave stirrer, the door lock structure is characterized in that a left locking block is convexly arranged on the left side of the inner surface of the upper end of the door body, a right locking block is convexly arranged on the right side of the inner surface of the upper end of the door body, a left locking hole for inserting the left locking block and a right locking hole for inserting the right locking block are respectively arranged on the upper end of the surface lining plate, and a left locking rod and a right locking rod are respectively arranged on the rear surface of the lining plate, the left lock rod and the right lock rod extend left and right respectively and are respectively sleeved with a return spring, the left lock block is provided with a left lock hole penetrating left and right and the right lock block is provided with a right lock hole penetrating left and right, the door body is closed on an opening of the inner container and is in a non-working state of the wave stirring motor, the left lock rod is positioned on the inner side of the left lock block, the right lock rod is positioned on the inner side of the right lock block, the return springs on the lock rods are in a non-stressed state, and in a working state of the wave stirring motor, at least one lock rod can horizontally move left and right under the driving of the wave stirring motor and is inserted into the corresponding lock hole, and the return springs on the lock rods are compressed and enable the lock rods to have a tendency of being separated from the corresponding lock holes.

Further, the left lock rod is provided with a left locking part and the right lock rod is provided with a right locking part, the top surface of the inner container is provided with a trigger assembly driven by a wave stirring motor, and the wave stirring motor drives the trigger assembly when in a working state, so that the trigger assembly alternately triggers the two locking parts to enable the lock rod where the corresponding locking part is located to horizontally move and be inserted into the corresponding lock hole. Make two locking levers insert in turn the lockhole that corresponds through stirring ripples motor drive trigger assembly, on the basis of satisfying the locking demand to the door body like this, solved and stirred the revolving force of ripples motor output and each locking lever and inserted the contradiction between the required horizontal force of corresponding lockhole, the revolving force that need not to stir ripples motor output converts the horizontal force into, directly utilize the revolving force can realize the drive to trigger assembly, thereby enable the inner structure of microwave cooking equipment succinct, and stir the ripples motor and can realize better stirring ripples ware and trigger assembly's simultaneous drive.

Furthermore, under the condition that one lock rod is separated from the corresponding lock hole under the action of the elastic force of the return spring of the lock rod, the trigger assembly synchronously triggers the locking piece on the other lock rod. Therefore, under the working state of the wave stirring motor, a lock rod is always inserted into the corresponding lock hole, and the stability and reliability of the locking state of the door body are ensured.

Further, vertically on the top surface of inner bag be provided with can stir ripples motor drive down pivoted driving shaft at the aforesaid, the aforesaid triggers the subassembly and includes the circular shape carousel of horizontal installation on this driving shaft, and vertical protruding the being equipped with on the top surface of this carousel triggers the post, and this carousel rotates the in-process, should trigger the post and can trigger arbitrary locking piece and make the locking lever at this locking piece place towards corresponding lockhole horizontal migration and insert in this lockhole. The rotation through the carousel enables the post that triggers on the carousel to trigger the locking piece on the different locking levers in turn like this, and then realizes triggering to different locking levers, makes different locking levers insert in the lockhole that corresponds and realize the locking to the door body.

Further, the two triggering columns are respectively arranged at two ends of the top surface of the turntable, an installation shaft is vertically arranged on the top surface of the inner container, a triggering transmission rod is rotatably installed on the installation shaft, the first end of the triggering transmission rod is always connected with the right locking part on the right locking rod, the second end of the triggering transmission rod can abut against the triggering columns, when the wave stirring motor is not in a working state, each triggering column does not abut against the triggering transmission rod and the left locking part on the left locking rod, when the wave stirring motor is in a working state, one triggering column abuts against the triggering transmission rod or the left locking part, and when the triggering column is separated from the triggering transmission rod or the left locking part, the other triggering column abuts against the left locking part or the triggering transmission rod. Through setting up two and triggering the post, can trigger the locking piece on each lock pole in turn better on the one hand, on the other hand can guarantee better that the door body is in all the time under the microwave function is by the locking state.

Furthermore, the left lock rod and the right lock rod are arranged oppositely from left to right, the left locking part is a block body which is convexly arranged at the inner end part of the left lock rod and extends forwards and backwards, the right locking part is a vertically extending cylinder which is convexly arranged on the top surface of the inner end of the right lock rod, the trigger transmission rod and the rotary disc are arranged behind the inner ends of the left lock rod and the right lock rod in parallel from left to right, the trigger transmission rod is bent, the first end of the trigger transmission rod extends forwards and backwards, the second end of the trigger transmission rod extends leftwards and rightwards, the first end of the trigger transmission rod is recessed backwards along the length direction of the first end of the trigger transmission rod to form a trigger groove, and the right locking part is inserted and connected into the trigger groove. The rotary force transmitted by the corresponding triggering column can be converted into horizontal force along the left and right directions through the left locking part and the triggering groove, so that each locking piece can be triggered by the rotary force of the triggering column better, and the transmission rod is conveniently triggered and the locking rod is conveniently disassembled and assembled.

Further, a left gap and a right gap are formed between the right locking part and the trigger groove, and the right locking part is always abutted against one side groove wall of the trigger groove. Thereby can avoid the influence that the stress between right locking portion and the trigger recess triggers right locking portion, can realize simultaneously that right lock pole inserts right lockhole through the mating action between right locking portion and the trigger recess better, perhaps breaks away from in the right lockhole.

Further, two trigger posts are arranged along the diameter direction of the top surface of the rotary table, the trigger transmission rod is arranged right and left opposite to the rotary table, and an included angle formed by two ends of the trigger transmission rod is 90 degrees. On the one hand, each triggering column can be better abutted against the second end of the triggering transmission rod, on the other hand, the triggering transmission rod can better convert and transmit the rotating force which is correspondingly acted on the second end of the triggering column to the first end of the triggering transmission rod, and the first end of the triggering transmission rod drives the right locking rod through the matching action with the right locking part.

Further, the trigger assembly further comprises a driving gear, a trigger gear and a transmission shaft arranged in the front-back direction, the driving gear is mounted on an output shaft of the wave stirring motor, the trigger gear is mounted on the driving shaft, a first transmission gear and a second transmission gear are respectively mounted at two ends of the transmission shaft, the first transmission gear is meshed with the driving gear, and the second transmission gear is meshed with the trigger gear. The rotating force output by the wave stirring motor can be smoothly transmitted to the rotating disc through the design, so that the rotating disc is driven.

Furthermore, the driving gear, the trigger gear, the first transmission gear and the second transmission gear are all bevel gears, so that the transmission reliability of the trigger assembly is ensured.

Further, the left side of the rear surface of the face lining plate is convexly provided with a left guide block, the right side is convexly provided with a right guide block, the left guide block is penetrated left and right to be provided with a left guide groove, the right guide block is penetrated left and right to be provided with a right guide groove, the left lock rod is penetrated in the left guide groove, the right lock rod is penetrated in the right guide groove, each lock rod can respectively move back and forth along the corresponding guide groove, the outer side ends of the left lock rod and the right lock rod are respectively convexly provided with a limit bump, each limit bump is respectively positioned on the inner side of the corresponding guide block, and each reset spring is respectively limited between the corresponding guide block and the limit bump. Through setting up left guide block and right guide block, can realize the steady removal of left locking lever and right locking lever on the one hand, on the other hand can realize the firm installation to each reset spring.

Further, the left side and the right side of the lower end of the door body are respectively provided with a door hook, and the left side and the right side of the lower end of the surface lining plate are respectively provided with a locking opening which is in one-to-one correspondence with the door hooks and is used for hooking and connecting the corresponding door hooks. The locking of the door body can be better realized by the cooperation of the locking rods, the door body is better prevented from being opened by mistake, and meanwhile, the compression amount of the upper end and the lower end of the sealing ring is always kept, so that microwave leakage can be better avoided.

Furthermore, the microwave assembly further comprises a magnetron, a wave guide tube, microcrystalline glass and the wave stirrer, a mounting hole is formed in the top of the inner container, the microcrystalline glass is embedded in the mounting hole, a mounting cover covers the mounting hole and surrounds the microcrystalline glass to form a cavity, one end of the wave guide tube is connected with the magnetron, the other end of the wave guide tube is communicated with the cavity, and the wave stirrer is arranged in the cavity.

The technical solution adopted to further solve the fourth technical problem is as follows: a microwave cooking device is characterized by comprising the door lock structure of the microwave cooking device.

Compared with the prior art, the invention has the advantages that: be provided with left locking piece and right locking piece on the door body, left fore shaft and right fore shaft have been seted up on the face welt respectively, still install left locking lever and right locking lever simultaneously, the aforesaid stirs ripples motor operating condition under, at least one of them locking lever can stir ripples motor drive down along left right direction horizontal migration and insert in the lockhole that corresponds, thereby with the locking of the door body and face welt, can avoid the door integument to miss to open on the one hand, on the other hand enables the door body and closely laminates with the face welt, and then makes the sealing washer closely compressed tightly between the door body and face welt, avoid the microwave leakage. In addition, when stirring ripples motor during operation, the door body is locked with the face liner, and when stirring ripples motor not working, the door body can normally be opened, stir ripples motor on the one hand like this and can realize the control to door body locking and unblock when the drive stirs the ripples ware, thereby make microwave cooking equipment's inner structure succinct, on the other hand microwave function opening door body is by synchronous locking, and microwave function stops door body by synchronous unblock, promote the reliability and the security of door body locking and unblock control, also can promote user's use simultaneously and experience.

Drawings

Fig. 1 is a schematic structural diagram of a microwave cooking device in an embodiment of the present invention (in a working state of a wave-stirring motor);

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a partial exploded view of a microwave cooking device according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of an inner container of the microwave cooking apparatus according to the embodiment of the present invention;

FIG. 6 is a partial exploded view of the inner container of the microwave cooking device in accordance with the embodiment of the present invention;

FIG. 7 is a schematic view of a partial structure of a microwave cooking apparatus according to an embodiment of the present invention (when the wave-stirring motor is not in operation);

fig. 8 is another partial structural view of the microwave cooking apparatus according to the embodiment of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 to 8, a microwave cooking device (in this embodiment, specifically, a micro-cooking machine for steaming and baking, that is, a steaming function, a baking function and a microwave function are provided at the same time) includes a liner 1, a door body 2 and a microwave module 4, wherein the liner 1 is open at the front side, a surface liner 3 is provided around the opening of the liner 1, a sealing ring (not shown) is provided on the inner periphery of the surface liner 3 along the circumferential direction, the sealing ring is provided on the opening edge of the liner 1, and the door body 2 can cover the opening of the liner 1. And the sealing ring is clamped between the door body 2 and the facing liner 3 in a state that the door body 2 is closed on the opening of the inner container 1. The microwave assembly 4 includes a wave mixing motor 41 installed at the top of the inner container 1 for driving a wave mixer 42. Further, the microwave module 4 further includes a magnetron (not shown), a waveguide 44, a glass-ceramic 45 and the wave stirrer 42, the top of the inner container 1 is provided with a mounting hole 10, the glass-ceramic 45 is embedded in the mounting hole 10, a mounting cover 43 is covered above the mounting hole 10, the mounting cover 43 and the glass-ceramic 45 enclose a cavity, one end of the waveguide 44 is connected with the magnetron, the other end is communicated with the cavity, and the wave stirrer 42 is arranged in the cavity.

Further, a left locking piece 21 is convexly provided on the left side of the inner surface of the upper end of the door body 2, a right locking piece 22 is convexly provided on the right side, a left locking notch 31 for inserting the left locking piece 21 and a right locking notch 32 for inserting the right locking piece 22 are respectively provided on the upper end of the face lining plate 3, and a left locking lever 51 and a right locking lever 52 are respectively installed between the left locking notch 31 and the right locking notch 32 on the rear surface of the upper end of the face lining plate 3. The left lock rod 51 and the right lock rod 52 extend left and right respectively, and each lock rod is sleeved with a return spring 53, the left lock block 21 is provided with a left lock hole 211 penetrating left and right, and the right lock block 22 is provided with a right lock hole 221 penetrating left and right.

When the door body 2 is closed on the opening of the inner container 1 and the wave stirring motor 41 is not in operation, the left lock rod 51 is positioned on the inner side of the left lock block 21 and the right lock rod 52 is positioned on the inner side of the right lock block 22, and the return springs 53 on the lock rods are in an unstressed state. When the wave stirring motor 41 is in an operating state, at least one of the lock rods can be driven by the wave stirring motor 41 to horizontally move in the left-right direction and be inserted into the corresponding lock hole, and the return spring 53 on the lock rod is compressed to make the lock rod have a tendency to be separated from the corresponding lock hole.

In the invention, the door body 2 is provided with a left locking block 21 and a right locking block 22, the surface lining plate 3 is respectively provided with a left locking port 31 and a right locking port 32, and simultaneously, a left locking rod 51 and a right locking rod 52 are also arranged. When the wave stirring motor 41 is in a working state, at least one of the lock rods can be driven by the wave stirring motor 41 to horizontally move along the left-right direction and be inserted into the corresponding lock hole, so that the door body 2 and the surface lining plate 3 are locked. On the one hand, the door body 2 can be prevented from being opened by mistake, on the other hand, the door body 2 can be tightly attached to the surface lining plate 3, and then the sealing ring is tightly pressed between the door body 2 and the surface lining plate 3, so that microwave leakage is avoided. In addition, when stirring ripples motor 41 during operation, door body 2 and face liner 3 are locked, and when stirring ripples motor 41 not work, door body 2 can normally be opened, stir ripples motor 41 on the one hand and can realize the control to door body 2 locking and unblock when the drive stirs ripples ware 42 like this, thereby make microwave cooking equipment's inner structure succinct, door body 2 is locked by the synchronization when on the other hand microwave function is opened, and door body 2 is by the synchronization unblock when microwave function stops, promote door body 2 locking and unblock controlled reliability and security, also can promote user's use simultaneously and experience.

Preferably, a left guide block 34 is protruded at a left side of a rear surface of the surface plate 3, a right guide block 35 is protruded at a right side thereof, a left guide groove 341 is opened in the left guide block 34 in a left-right penetrating manner, and a right guide groove 351 is opened in the right guide block 35 in the left-right penetrating manner. The left lock lever 51 is inserted into the left guide groove 341 and the right lock lever 52 is inserted into the right guide groove 351, and each lock lever can be respectively inserted along

Each lock rod can move back and forth along the corresponding guide groove. And the outer ends of the left lock rod 51 and the right lock rod 52 are respectively provided with a limit bump 54 in a protruding manner, each limit bump 54 is respectively positioned at the inner side of the corresponding guide block, and each return spring 53 is respectively limited between the corresponding guide block and the limit bump 54. By providing the left guide block 34 and the right guide block 35, on the one hand, smooth movement of the left lock lever 51 and the right lock lever 52 can be achieved, and on the other hand, stable mounting of the return springs 53 can be achieved.

The left lock rod 51 and the right lock rod 52 can be driven synchronously to be inserted into the corresponding lock holes, or only one of the lock rods can be driven to be inserted into the corresponding lock hole, or one of the lock rods can be driven alternately to be inserted into the corresponding lock hole. In this embodiment, it is preferable that the left lock lever 51 is provided with a left locking portion 511 and the right lock lever 52 is provided with a right locking portion 521,

and a trigger assembly 6 which can be driven by a wave stirring motor 41 is arranged on the top surface of the inner container 1. When the wave stirring motor 41 is in a working state, the wave stirring motor 41 drives the trigger assembly 6, so that the trigger assembly 6 alternately triggers the two locking members to enable the lock rod where the corresponding locking member is located to horizontally move and be inserted into the corresponding lock hole. Make two locking levers insert in the lockhole that corresponds in turn through stirring ripples motor 41 drive trigger component 6, on the basis of satisfying the locking demand to the door body 2 like this, solved and stirred the contradiction between the revolving force of ripples motor 41 output and the required horizontal force of each locking lever insertion correspondence lockhole, need not to stir the revolving force of ripples motor 41 output and convert the horizontal force into, directly utilize the revolving force can realize the drive to trigger component 6, thereby can make the inner structure of microwave cooking equipment succinct, and make stir ripples motor 41 can better realize stirring ripples 42 and trigger component 6's synchronous drive. Further, preferably, the triggering assembly 6 synchronously triggers the locking member of the other lock rod in a state that one lock rod is separated from the corresponding lock hole under the elastic force of the return spring 53. Therefore, under the working state of the wave stirring motor 41, a lock rod is always inserted into the corresponding lock hole, so that the stability and reliability of the locking state of the door body 2 are ensured.

Further, it is preferable that the door body 2 is provided with door hooks 23 at left and right sides of a lower end thereof, and the facing plate 3 is provided with locking openings 33 at left and right sides of a lower end thereof, which correspond to the door hooks 23 one by one and are hooked by the corresponding door hooks 23. Therefore, the locking of the door body 2 can be better realized by matching with the alternate action of the lock rods, so that the door body 2 is better prevented from being opened by mistake, and the microwave leakage can be better avoided.

Further, specifically, a driving shaft 610 capable of rotating under the driving of the wave stirring motor 41 is vertically arranged on the top surface of the inner container 1, the triggering assembly 6 includes a circular turntable 61 horizontally mounted on the driving shaft 610, a triggering post 611 is vertically and convexly arranged on the top surface of the turntable 61, and in the rotating process of the turntable 61, the triggering post 611 can trigger any one locking member to enable the locking rod where the locking member is located to horizontally move towards the corresponding locking hole and be inserted into the locking hole. Thus, the rotation of the rotary table 61 can make the triggering column 611 on the rotary table 61 alternately trigger the locking members on different locking rods, thereby further realizing the triggering of different locking rods, and making different locking rods inserted into corresponding locking holes to realize the locking of the door body 2. Preferably, the two triggering posts 611 are respectively disposed at two ends of the top surface of the rotating disc 61, a mounting shaft 70 is further vertically disposed on the top surface of the inner container 1, a triggering transmission rod 7 is rotatably mounted on the mounting shaft 70, a first end 71 of the triggering transmission rod 7 is always connected to the right locking portion 521 on the right locking rod 52, and a second end 72 of the triggering transmission rod 7 can abut against each triggering post 611, when the wave stirring motor 41 is not in an operating state, each triggering post 611 does not abut against the triggering transmission rod 7 and the left locking portion 511 on the left locking rod 51, when the wave stirring motor 41 is in an operating state, one of the triggering posts 611 abuts against the triggering transmission rod 7 or the left locking portion 511, and when the triggering post 611 is disengaged from the triggering transmission rod 7 or the left locking portion 511, the other triggering post 611 abuts against the left locking portion 511 or the triggering transmission rod 7. Through setting up two and triggering post 611, can trigger the locking piece on each lock pole in turn better on the one hand, on the other hand can guarantee better that door body 2 is in the locked state all the time under the microwave function.

Further, the left lock lever 51 and the right lock lever 52 are disposed to face each other in the left-right direction, the left locking portion 511 is a block body extending in the front-rear direction and provided to protrude from the inner end of the left lock lever 51, the right locking portion 521 is a column body extending in the vertical direction and provided to protrude from the top surface of the inner end of the right lock lever 52, and the trigger transmission lever 7 and the dial 61 are disposed in parallel in the left-right direction and behind the inner ends of the left lock lever 51 and the right lock lever 52. The trigger transmission rod 7 is bent, the first end 71 of the trigger transmission rod 7 extends forward and backward, the second end 72 extends leftward and rightward, the first end 71 of the trigger transmission rod 7 is recessed backward along the length direction thereof to form a trigger groove 711, and the right locking part 521 is inserted into the trigger groove 711, so that the right locking part 521 is detachably connected to the trigger transmission rod 7. The left locking part 511 and the trigger groove 711 can convert the rotating force transmitted by the corresponding trigger post 611 into horizontal force along the left-right direction, so that each locking piece can be better triggered by the rotating force of the trigger post 611, and the trigger transmission rod 7 can be conveniently detached from the lock rod. Preferably, a left and right gap is formed between the right locking portion 521 and the trigger groove 711, and the right locking portion 521 is always abutted against one groove wall of the trigger groove 711. Therefore, the influence of the stress between the right locking portion 521 and the triggering groove 711 on the triggering of the right locking portion 521 can be avoided, and the right lock rod 52 can be inserted into the right lock hole 221 or separated from the right lock hole 221 better through the cooperation between the right locking portion 521 and the triggering groove 711.

In this embodiment, the mounting base 11 is fixed to the front end of the top surface of the inner container 1, the driving shaft 610 and the mounting shaft 70 are fixed to the mounting base 11, the two triggering posts 611 are arranged along the diameter direction of the top surface of the rotating plate 61, the triggering transmission rod 7 is arranged right and left opposite to the rotating plate 61, and an included angle formed by the two ends of the triggering transmission rod 7 is 90 °. On the one hand, each triggering pin 611 can better abut against the second end 72 of the triggering transmission rod 7, on the other hand, the triggering transmission rod 7 can better convert and transmit the rotating force applied to the second end 72 by the corresponding triggering pin 611 to the first end 71 thereof, and the first end 71 thereof can drive the right locking rod 52 through the cooperation with the right locking part 521.

Further, the trigger assembly 6 further includes a driving gear 62, a trigger gear 63 and a transmission shaft 64 disposed along the front-rear direction, the driving gear 62 is mounted on a vertically extending output shaft of the wave stirring motor 41, the trigger gear 63 is mounted on the driving shaft 610, and a first transmission gear 65 and a second transmission gear 66 are respectively mounted at two ends of the transmission shaft 64, wherein the first transmission gear 65 is engaged with the driving gear 62, and the second transmission gear 66 is engaged with the trigger gear 63. The rotational force output by the wave stirring motor 41 can be smoothly transmitted to the turntable 61 by the above-described design, thereby realizing driving of the turntable 61. Preferably, the driving gear 62, the triggering gear 63, the first transmission gear 65 and the second transmission gear 66 are all bevel gears, so as to ensure the reliability of the transmission of the triggering assembly 6. In this embodiment, the transmission shaft 64 is mounted on the top surface of the inner container 1 through a shaft seat fixed on the top surface of the inner container 1.

The working process of the invention is as follows:

in the initial state, the door body 2 is closed on the opening of the inner container 1, each door hook 23 is hooked in the corresponding locking opening 33, and each locking block is inserted into the corresponding locking opening. The left lock lever 51 and the right lock lever 52 are both in the initial position (i.e., not inserted into the corresponding lock hole), and the two triggering posts 611 on the rotary plate 61 are arranged in the front-rear direction, so that the door 2 can be opened.

When the microwave function begins, it begins anticlockwise rotation (from the top down) to stir ripples motor 41, it works to drive ripples ware 42 to stir ripples motor 41, stir ripples motor 41 simultaneously and drive driving gear 62 anticlockwise rotation, driving gear 62 drives the first drive gear 65 anticlockwise rotation (from the past back) on the transmission shaft 64, the second drive gear 66 of the transmission shaft 64 other end drives the trigger gear 63 anticlockwise rotation on the driving shaft 610 this moment, thereby make carousel 61 anticlockwise rotation, the corresponding trigger post 611 on the carousel 61 offsets with left locking portion 511 and drives left locking lever 51 and move left, reset spring 53 on the left locking lever 51 is and the compression, and the outer tip of left locking lever 51 inserts in the lockhole of left locking block 21.

When the dial 61 is rotated by 90 °, the corresponding trigger bar 611 and the left locking portion 511 of the left lock lever 51 are disengaged, the return spring 53 of the left lock lever 51 returns to its original length, and the left lock lever 51 is disengaged from the left locking hole 211. Meanwhile, the other triggering pin 611 abuts against the second end 72 of the triggering transmission rod 7 to drive the triggering transmission rod 7 to rotate counterclockwise, the right locking portion 521 on the right locking rod 52 drives the right locking rod 52 to move rightward, and the right locking rod 52 is inserted into the right locking hole 221 of the right locking block 22.

When the rotary disc 61 rotates 180 °, the corresponding triggering pin 611 is disengaged from the triggering transmission rod 7, the right locking rod 52 is disengaged from the right locking hole 221, and simultaneously, the other triggering pin 611 abuts against the left locking portion 511 of the left locking rod 51 to trigger the left locking rod 51 to move left. The microwave function is circulated in a reciprocating way, and the door body 2 cannot be opened at the moment when the microwave function is started, so that the microwave leakage is prevented. When the microwave function is stopped, each lock rod is restored to the initial state under the action of the corresponding return spring 53.

Claims

1. A door lock structure of microwave cooking equipment comprises an inner container (1), a door body (2) and a microwave assembly (4), wherein the front side of the inner container (1) is opened, a surface lining plate (3) is arranged on the outer periphery of the opening of the inner container (1), a sealing ring is arranged on the inner peripheral edge of the surface lining plate (3) along the circumferential direction and is arranged on the opening edge of the opening of the inner container (1), the door body (2) can be covered on the opening of the inner container (1), and the sealing ring is clamped between the door body (2) and the surface lining plate (3) under the state that the door body (2) is closed on the opening of the inner container (1), the microwave assembly (4) comprises a wave stirring motor (41) which is arranged on the top of the inner container (1) and is used for driving a wave stirrer (42), and is characterized in that,

a left locking block (21) is convexly arranged on the left side of the inner surface at the upper end of the door body (2), a right locking block (22) is convexly arranged on the right side, a left locking notch (31) for inserting the left locking block (21) and a right locking notch (32) for inserting the right locking block (22) are respectively arranged at the upper end of the face lining plate (3), a left locking rod (51) and a right locking rod (52) are respectively arranged between the left locking notch (31) and the right locking notch (32) on the rear surface at the upper end of the face lining plate (3), the left locking rod (51) and the right locking rod (52) respectively extend left and right, a reset spring (53) is respectively sleeved on each locking rod, a left locking hole (211) which penetrates left and right is arranged on the left locking block (21), and a right locking hole (221) which penetrates left and right is arranged on the right locking block (22),

the door body (2) is closed on an opening of the inner container (1) and the wave stirring motor (41) is in a non-working state, the left lock rod (51) is positioned on the inner side of the left lock block (21) and the right lock rod (52) is positioned on the inner side of the right lock block (22), the return spring (53) on each lock rod is in a non-stressed state, and in a working state of the wave stirring motor (41), at least one lock rod can horizontally move in the left-right direction under the driving of the wave stirring motor (41) and is inserted into a corresponding lock hole, and the return spring (53) on the lock rod is compressed and enables the lock rod to have a tendency of being separated from the corresponding lock hole.

2. The door lock structure of microwave cooking equipment according to claim 1, characterized in that the left lock rod (51) is provided with a left lock part (511) and the right lock rod (52) is provided with a right lock part (521), and the top surface of the inner container (1) is provided with a trigger assembly (6) capable of being driven by the wave stirring motor (41), when the wave stirring motor (41) is in an operating state, the wave stirring motor (41) drives the trigger assembly (6), and the trigger assembly (6) alternately triggers the two lock parts to enable the lock rod of the corresponding lock part to horizontally move and be inserted into the corresponding lock hole.

3. The door lock structure of microwave cooking equipment according to claim 2, characterized in that, in a state where one of the lock rods is disengaged from the corresponding lock hole by the elastic force of its return spring (53), the triggering unit (6) synchronously triggers the locking member of the other lock rod.

4. The door lock structure of microwave cooking equipment according to claim 2 or 3, characterized in that a driving shaft (610) capable of rotating under the driving of the wave stirring motor (41) is vertically arranged on the top surface of the inner container (1), the triggering assembly (6) comprises a circular turntable (61) horizontally mounted on the driving shaft (610), a triggering column (611) is vertically and convexly arranged on the top surface of the turntable (61), and during the rotation process of the turntable (61), the triggering column (611) can trigger any locking member to enable the locking rod on which the locking member is located to horizontally move towards the corresponding locking hole and be inserted into the locking hole.

5. The door lock structure of microwave cooking equipment according to claim 4, wherein the number of the trigger posts (611) is two and is set at two ends of the top surface of the rotating plate (61), the top surface of the inner container (1) is further vertically provided with a mounting shaft (70), the mounting shaft (70) is rotatably mounted with the trigger transmission rod (7), the first end (71) of the trigger transmission rod (7) is always connected with the right locking portion (521) of the right locking rod (52) while the second end (72) can abut against each trigger post (611), when the wave stirring motor (41) is not in operation, each trigger post (611) does not abut against the trigger transmission rod (7) and the left locking portion (511) of the left locking rod (51), when the wave stirring motor (41) is in operation, one of the trigger posts (611) abuts against the trigger transmission rod (7) or the left locking portion (511), and, when the trigger column (611) is separated from the trigger transmission rod (7) or the left locking part (511), the other trigger column (611) is abutted against the left locking part (511) or the trigger transmission rod (7).

6. The door lock structure of microwave cooking apparatus according to claim 5, wherein the left lock lever (51) and the right lock lever (52) are oppositely disposed at left and right sides, the left locking part (511) is a block body which is convexly arranged at the inner end part of the left locking bar (51) and extends forwards and backwards, the right locking part (521) is a vertically extending column body which is convexly arranged on the top surface of the inner end of the right locking rod (52), the trigger transmission rod (7) and the rotary disc (61) are arranged in parallel left and right behind the inner ends of the left lock rod (51) and the right lock rod (52), the trigger transmission rod (7) is bent, the first end (71) of the trigger transmission rod (7) extends forwards and backwards, the second end (72) extends leftwards and rightwards, and a trigger groove (711) is formed on the first end (71) of the trigger transmission rod (7) and is recessed backwards along the length direction of the trigger transmission rod, and the right locking part (521) is inserted into the trigger groove (711).

7. The door latch structure of microwave cooking device according to claim 6, wherein the right latching part (521) has a left and right gap with the triggering recess (711), and the right latching part (521) always abuts against one of the groove walls of the triggering recess (711).

8. The door lock structure of microwave cooking equipment according to claim 6, characterized in that two said triggering posts (611) are arranged along the diameter direction of the top surface of the rotating disc (61), said triggering transmission rod (7) is arranged right and left opposite to the rotating disc (61), wherein the included angle formed by the two ends of the triggering transmission rod (7) is 90 °.

9. The door lock structure of microwave cooking equipment according to claim 4, wherein the trigger assembly (6) further comprises a driving gear (62), a trigger gear (63) and a transmission shaft (64) arranged in a front-rear direction, the driving gear (62) is installed on a vertically extending output shaft of the wave stirring motor (41), the trigger gear (63) is installed on the driving shaft (610), and both ends of the transmission shaft (64) are respectively installed with a first transmission gear (65) and a second transmission gear (66), wherein the first transmission gear (65) is engaged with the driving gear (62), and the second transmission gear (66) is engaged with the trigger gear (63).

10. The door lock structure of microwave cooking equipment according to claim 9, wherein the driving gear (62), the triggering gear (63), the first transmission gear (65) and the second transmission gear (66) are all bevel gears.

11. The door lock structure of microwave cooking equipment according to claim 1, wherein a left guide block (34) is protruded from a left side of a rear surface of the surface liner (3) and a right guide block (35) is protruded from a right side thereof, a left guide groove (341) is opened through the left and right of the left guide block (34) and a right guide groove (351) is opened through the right and left of the right guide block (35), the left lock bar (51) is inserted into the left guide groove (341) and the right lock bar (52) is inserted into the right guide groove (351), each lock bar can respectively move back and forth along the corresponding guide groove, and limit protrusions (54) are protruded from outer ends of the left lock bar (51) and the right lock bar (52), each limit protrusion (54) is respectively located at an inner side of the corresponding guide block, and each return spring (53) is respectively limited between the corresponding guide block and the limit protrusion (54).

12. The door lock structure of microwave cooking equipment according to claim 1, wherein the door hooks (23) are respectively provided on the left and right sides of the lower end of the door body (2), and the locking openings (33) corresponding to the door hooks (23) one by one and allowing the corresponding door hooks (23) to be hooked are respectively provided on the left and right sides of the lower end of the lining panel (3).

13. The door lock structure of microwave cooking equipment according to claim 1, wherein the microwave module (4) further comprises a magnetron, a waveguide (44), a glass ceramic (45) and the wave stirrer (42), a mounting hole (10) is formed at the top of the inner container (1), the glass ceramic (45) is embedded in the mounting hole (10), a mounting cover (43) is covered above the mounting hole (10), the mounting cover (43) and the glass ceramic (45) define a cavity, one end of the waveguide (44) is connected to the magnetron, the other end of the waveguide is communicated with the cavity, and the wave stirrer (42) is arranged in the cavity.

14. A microwave cooking apparatus having a door lock structure of the microwave cooking apparatus according to any one of claims 1 to 13.