CN104879799B - A kind of safety door latch mechanism for preventing steam and microwave leakage - Google Patents
A kind of safety door latch mechanism for preventing steam and microwave leakage Download PDFInfo
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- CN104879799B CN104879799B CN201510272830.4A CN201510272830A CN104879799B CN 104879799 B CN104879799 B CN 104879799B CN 201510272830 A CN201510272830 A CN 201510272830A CN 104879799 B CN104879799 B CN 104879799B
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- door
- microswitch
- moving block
- interlock
- component
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/6414—Aspects relating to the door of the microwave heating apparatus
- H05B6/6417—Door interlocks of the microwave heating apparatus and related circuits
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electric Ovens (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
A kind of safety door latch mechanism for preventing steam and microwave leakage, including door component, door lock assembly and interlock, the door component includes the door latch mutually latched with door lock assembly, and the interlock includes interlock bracket and the microswitch in interlock bracket, it is characterised in that:Described interlock also includes the moving block being rotatably arranged in the interlock bracket, being provided with described door component can force in the first convex portion that moving block is rotated forward simultaneously and then triggers the microswitch as door component is closed, first convex portion releases the force to moving block as door component is opened, the moving block is then rotated backward in the presence of deadweight and microswitch contact bounce therewith, and and then the microswitch is recovered the original state to before being triggered.The advantage of the invention is that:The door lock mechanism non-spring structure, directly controls microswitch by moving block, and compact conformation is succinct, and also has reliability higher simultaneously.
Description
Technical field
The present invention relates to door lock mechanism, more particularly, to a kind of safety door latch mechanism for preventing steam and microwave leakage.
Background technology
In existing micro-wave oven, the electric kitchen appliance such as steam box and electric oven, the enabling side of sliding door type is typically designed to
Formula, for this door-opening mode, all with corresponding couplet on the door lock construction.Existing conventional couplet on the door lock construction generally comprise door body and
The cabinet front plate coordinated with door body, is provided with gate stop, the installation door interlock bracket on cabinet front plate, in gate interlock branch in door body
The microswitch triggered by gate stop is installed on frame.
Such as the Chinese utility model of Patent No. ZL 201420477422.3 (Authorization Notice No. is the U of CN 204060197)
Disclosed in patent《A kind of couplet on the door lock construction》, couplet on the door lock construction installation door hook support in door body, gate stop rotationally sets
On gate stop support, being provided with couplet on the door lock support can trigger the moving block of microswitch, between gate stop support and gate stop
Be provided with can oppress gate stop and and then make moving block have persistently trigger microswitch trend the first elastic component, in couplet on the door lock support
On be also equipped with making the moving block for having triggered microswitch there is the second elastic component for rotating backward trend and departing from microswitch.
The advantage of the couplet on the door lock construction is that the first elastic component can oppress gate stop and moving block is triggered microswitch at closing time, and door body will not
It is opened easily, it is safe, in addition, in the presence of the second elastic component, door body is subject to the acting in opposition of moving block at closing time
Power, door body is subject to the thrust of moving block during enabling, opens the door and closes the door and be more comfortable.But, after elastic component, the gate interlock
Structure it is relatively complicated, manufacturing cost is higher.
And for example the China of Patent No. ZL 201020545967.5 (Authorization Notice No. is the U of CN 201925981) is practical new
Disclosed in type patent《Universal oven port interlocking mechanism for microwave oven》, the interlocking mechanism include switch base, gate stop and foreboard, switch base
On can place multiple switch, the position for corresponding to each switch is provided with the action key for operating this switch, and gate stop is located at micro-wave oven
Combined or departed from the switch base on fire door and with the open and close of fire door, the gate stop is had at least one hook portion, for passing through
Touch these action keys to trigger these switches, foreboard is used to be fixed on switch base the cavity of micro-wave oven.Due to the couplet on the door
Latch mechanism is used to touch two hook portions of microswitch action key all located at gate stop, is formed with what is stretched into for gate stop on foreboard
Recess, then if with the round shape object of small iron wire etc, accidentally pushing down two recesses simultaneously, under micro-wave oven starting state,
Microwave error starting under door opening state is likely to cause, so as to bring potential safety hazard.
The content of the invention
The technical problems to be solved by the invention are directed to above-mentioned state of the art, there is provided a kind of compact conformation is succinct,
The safe safety door latch mechanism for preventing steam and microwave leakage.
The present invention solve the technical scheme that is used of above-mentioned technical problem for:This prevents the safety door of steam and microwave leakage
Latch mechanism, including door component, door lock assembly and interlock, the door component include the door latch mutually latched with door lock assembly,
The interlock includes interlock bracket and the microswitch in interlock bracket, it is characterised in that:Described interlocking dress
Putting also includes the moving block being rotatably arranged in the interlock bracket, is provided with described door component as door component is closed
And the first convex portion that moving block is rotated forward simultaneously and then triggers the microswitch can be forced in, first convex portion is with door
Component is opened and releases the force to moving block, and the moving block is then therewith in deadweight and the effect of microswitch contact bounce
It is lower to rotate backward, and and then the microswitch is recovered the original state to before being triggered.
Preferably, described moving block includes the first moving block and the second moving block, and described microswitch includes first
Microswitch, the second microswitch and the 3rd microswitch, described the first moving block has can trigger the under the state of closing the door
First retaining wall of one microswitch, described the second moving block have can be triggered respectively under the state of closing the door the second microswitch and
Second retaining wall and third gear wall of the 3rd microswitch.
Further preferably, the first described convex portion is in the door seal of door component and is used for being collided with the first moving block, institute
The second moving block stated is provided with the second convex portion for being collided with door seal towards the side of door seal.By the first convex portion in door seal
And by the second convex portion on moving block so that the structure setting of interlock is more reasonable, can be better protected from micro-wave oven
Microwave is caused to delay work because triggering microswitch under door opening state, so as to further improve safety in utilization.
If two convex portions are all disposed within the moving block of interlock, then under micro-wave oven starting state, by mistake will
Push down two convex portions, it is possible to cause microwave error starting under door opening state, so as to carry potential safety hazard;If by two convex portions all
It is arranged on a component, then due to being provided with corresponding two recesses stretched into for convex portion on interlock, then if using small iron
The round shape object of silk etc, imprudence pushes down two recesses simultaneously, under micro-wave oven starting state, it is also possible to cause enabling shape
Microwave error starting under state, so as to bring potential safety hazard, also, refers to test with the test of 3mm diameters, can make three microswitches all
Action, thus do not meet microwave oven safety standard.
Further preferably, it is provided with the side wall that the first moving block is corresponded in the interlock bracket and is stretched for first convex portion
Enter the first breach in interlock bracket, the second breach, institute are provided with the side wall that the interlock bracket corresponds to the second moving block
The second convex portion stated is stretched out in outside the second breach.
There can be various position relationships between each component of interlock, it is preferable that the first described microswitch and
Two microswitch oblique parallels are set, and the second microswitch is located at the lower section of the first microswitch, and the 3rd described fine motion is opened
Pass is vertically arranged and positioned at the front lower place of the second microswitch, and first moving block is located at the top of the second moving block, described
The inclination side of the first retaining wall and the setting of the second retaining wall oblique parallel and incline direction and the first microswitch and the second microswitch
To consistent, just to the first contact of the first microswitch, second retaining wall is just to the second microswitch for first retaining wall
Second contact, the third gear wall is located at the front lower place of the second retaining wall and just to the 3rd contact of the 3rd microswitch, also, institute
The first microswitch, the second microswitch and the 3rd microswitch stated synchronously are triggered under the state of closing the door.
In order that door latch smoothly can be latched mutually with door lock assembly, described door latch is arranged in the door body of door component,
The through hole passed through for the door latch is provided with the door seal of the door component.
Described door lock assembly can have various structures, it is preferable that described door lock assembly includes door lock fixed mount, gate stop
And extension spring, the gate stop is rotatably arranged on described door lock fixed mount, and the front end of gate stop has and interlocked with the door latch
Hook portion, the rear end of gate stop is connected with the extension spring, and the pulling force that is produced to gate stop of the extension spring have prevent door latch from
The trend that gate stop departs from.So, the size of door lock assembly coupling mechanism force, can be according to design requirement by the extension spring on door lock assembly
It is adjusted.
Further preferably, vertically arranged front limit axle and rear limit shaft is fixed with described door lock fixed mount,
The bar hole and the stopper slot with arc notch of horizontal distribution are formed with described gate stop, described front limit is located in described
Bar hole in, described rear limit shaft is formed with described stopper slot and is slidably matched.
Used as the preferred of any of the above-described scheme, the two bottom sides of the door component are respectively provided with a door hinge.
Compared with prior art, the advantage of the invention is that:First convex portion of the door lock mechanism on the door component can be with
Door component to close and moving block can be forced in and rotated forward simultaneously and then triggered the microswitch, and as door component is beaten
Open, moving block can be rotated backward in the presence of deadweight and microswitch contact bounce, and and then make the microswitch
Recover the original state to before being triggered, it is seen that the door lock mechanism non-spring structure, microswitch is directly controlled by moving block, tie
Structure compact, and also there is reliability higher simultaneously.
Brief description of the drawings
Fig. 1 is the mounting structure schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of the interlock of the embodiment of the present invention;
Fig. 3 is the perspective exploded view of the interlock of the embodiment of the present invention;
Fig. 4 is structural representation of the embodiment of the present invention under the state of closing the door;
Fig. 5 is structural representation of the embodiment of the present invention under door opening state;
Fig. 6 is structural representation of the door lock assembly of the embodiment of the present invention under the state of closing the door;
Fig. 7 is structural representation of the door lock assembly of the embodiment of the present invention under door opening state;
Fig. 8 is structural representation of the embodiment of the present invention under the state of closing the door.
Specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
As shown in figure 1, in the present embodiment prevent steam and microwave leakage safety door latch mechanism include door lock assembly 1,
Interlock 2 and door component 3, the bottom of door component 3 are provided with door hinge 4, and door lock assembly 1 is located at the top of inner bag 5, in order to be able to close
Gland steam, door component 3 is provided with the sealing rubber ring for being brought into close contact with inner bag 5.
As shown in Figures 2 and 3, interlock 2 include interlock bracket 21, the first microswitch 22, the second microswitch 23,
3rd microswitch 24, the first moving block 25 and the second moving block 26, the first microswitch 22 have the first contact 221, second
Microswitch 23 has the second contact 231, and the 3rd microswitch 24 has the 3rd contact 241, and the first moving block 25 has first
Retaining wall 251, the second moving block 26 has the second retaining wall 261, third gear wall 262 and a nose bar 263, the first moving block 25 and second turn
Motion block 26 is rotatably arranged in interlock bracket 21.The is provided with the side wall that interlock bracket 21 corresponds to the first moving block 25
One breach 27, the second breach 28 is provided with the side wall that interlock bracket 21 corresponds to the second moving block 26, and nose bar 263 stretches out in the
Outside two breach 28.
Further, the position relationship of each component of above-mentioned interlock 2 is as follows:First microswitch 22 and the second fine motion are opened
The setting of 23 oblique parallels is closed, and the second microswitch 23 is located at the lower section of the first microswitch 22, the 3rd microswitch 24 is vertical
Set and positioned at the front lower place of the second microswitch 23, the first moving block 25 is located at the top of the second moving block 26, the first retaining wall
251 and the oblique parallel of the second retaining wall 261 set and incline direction and the first microswitch 22 and the second microswitch 23 inclination
Direction is consistent, and the first retaining wall 251 just to the first contact 221 of the first microswitch 22, just open the second fine motion by the second retaining wall 261
23 the second contact 231 is closed, third gear wall 262 is located at the front lower place of the second retaining wall 261 and just to the of the 3rd microswitch 24
Three contacts 241.
As shown in Figure 4 and Figure 5, in the present embodiment, the first convex portion is the projection 311 in door seal 31, and the second convex portion is
Nose bar 263 on the second moving block 26, when in the closing process of door component 3, projection 311 stretches into interlocking by the first breach 28
In support 21, and acting on the first moving block 25 makes the first moving block 25 rotate, after door component 3 is closed, the first retaining wall 251
Collided with the first contact 221 and the first microswitch 22 is triggered;Simultaneously as nose bar 263 stretches out in the second breach 28, door
Envelope 31 acts on nose bar 263 in the closing process of door component 3 makes the second moving block 26 rotate, after door component 3 is closed, second turn
Second retaining wall 261 of motion block 26 is collided with the second contact 231 and the second microswitch 23 is triggered, third gear wall 262 and
Collide and the 3rd microswitch 24 is triggered in three contacts 241.First microswitch 22, the second microswitch 23 and the 3rd fine motion
Switch 24 is synchronously triggered under the state of closing the door, the first microswitch 22, the second microswitch 23 and the quilt of the 3rd microswitch 24
After triggering, directly drive whole machine energization and display screen is lighted.
When door component 3 is opened, as door component 3 rotates, the projection 311 in door seal 31 leaves the first moving block 25, i.e.,
Projection 311 releases the force to the first moving block 25 as door component 3 is opened, and the first moving block 25 is in deadweight and the first fine motion
Rotated backward in the presence of the bounce of first contact 221 of switch 22, and then make the first microswitch 22 recover extremely to be touched
Original state before hair;Meanwhile, door seal 31 is separated with the nose bar 263 of the second moving block 26, i.e., door seal 31 is released to second turn
The force of motion block 26, the second moving block 26 carries out anti-in the presence of deadweight and the second contact 231, the bounce of the 3rd contact 241
To rotation, and then the second microswitch 23, the 3rd microswitch 24 is set to recover the original state to before being triggered, while cutting at once
Power-off source, machine is stopped.
As shown in Figure 6 to 8, door latch 33 is installed in the door body 32 of door component 3, is opened in the door seal 31 of door component 3
There is the through hole passed through for door latch 33, door latch 33 is used for mutually being latched with door lock assembly 1, and door component 3 at closing time, lock by door latch 33
It is buckled on door lock assembly 1, when door component 3 is opened, door latch 33 departs from from door lock assembly 1.
Door lock assembly 1 in the present embodiment includes door lock fixed mount 11, gate stop 12 and extension spring 13, and gate stop 12 is rotationally set
On door lock fixed mount 11, the front end of gate stop 12 has the hook portion 121 interlocked with door latch 33, rear end and the extension spring 13 of gate stop 12
It is connected, and the pulling force that extension spring 13 is produced to gate stop 12 has the trend for preventing door latch 33 from departing from from gate stop 12.Specifically, door
Vertically arranged front limit axle 14 and rear limit shaft 15 is fixed with lock fixed mount 11, horizontal distribution is formed with gate stop 12
Bar hole 122 and the stopper slot with arc notch 123, front limit axle 14 in the bar hole 122, rear limit shaft 15 and stopper slot
123 formation are slidably matched.When in the closing process of door component 3, door latch 33 withstands gate stop 12 and rotates, when door is closed, gate stop 12 is hooked
Firmly door latch 33, to ensure that gate inhibition closes, the wherein size of the coupling mechanism force of door lock assembly 1 can be filled according to design requirement by door lock
The extension spring 13 put is adjusted.
The interlock 2 of the safety door latch mechanism eliminates the parts such as spring, and compact conformation is succinct, designs ingenious, opens the door
After can ensure that machine is stopped at once, the simple structure of door lock assembly 1, locking are firm, can prevent child from arbitrarily opening the door.And connection
Locking device 2 with door lock assembly 1 as the opening and closing of door component 3 work asynchronously, the effect with dual security protection.Separately
Outward, the safety door latch mechanism is applicable to the culinary products such as steam all-in-one, steam box and micro-wave oven.
Claims (7)
1. a kind of safety door latch mechanism for preventing steam and microwave leakage, including door component (3), door lock assembly (1) and interlocking dress
Put (2), the door component (3) includes the door latch (33) that is mutually latched with door lock assembly (1), the interlock (2) includes connection
Lock support (21) and the microswitch in interlock bracket, described interlock are also described including being rotatably arranged at
Moving block on lock support (21), being provided with described door component (3) can force in moving block and make as door component is closed
The first convex portion of the microswitch is rotated forward simultaneously and then triggers, first convex portion is released to turning as door component is opened
The force of motion block, the moving block is then rotated backward in the presence of deadweight and microswitch contact bounce therewith, is gone forward side by side
And the microswitch is recovered the original state to before being triggered;Described moving block includes the first moving block (25) and second
Moving block (26), described microswitch includes the first microswitch (22), the second microswitch (23) and the 3rd microswitch
(24), described the first moving block (25) is with the first retaining wall that the first microswitch (22) can be triggered under the state of closing the door
(251), described the second moving block (26) under the state of closing the door with can respectively trigger the second microswitch (23) and the 3rd micro-
Second retaining wall (261) and third gear wall (262) of dynamic switch (24);It is characterized in that:Described the first microswitch (22) and
Second microswitch (23) oblique parallel is set, and the second microswitch (23) is positioned at the lower section of the first microswitch (22), institute
The 3rd microswitch (24) stated is vertically arranged and positioned at the front lower place of the second microswitch (23), first moving block (25)
Positioned at the top of the second moving block (26), first retaining wall (251) and the second retaining wall (261) oblique parallel are set and inclination side
To consistent with the incline direction of the first microswitch (22) and the second microswitch (23), first retaining wall (251) is just to
First contact (221) of one microswitch (22), second retaining wall (261) is just to the second contact of the second microswitch (23)
(231), the third gear wall (262) is positioned at the front lower place of the second retaining wall (261) and just to the 3rd of the 3rd microswitch (24) the
Contact (241), also, described the first microswitch (22), the second microswitch (23) and the 3rd microswitch (24) closing
Synchronously triggered under door state.
2. the safety door latch mechanism for preventing steam and microwave leakage according to claim 1, it is characterised in that:Described
One convex portion is located in the door seal (31) of door component (3) and for being collided with the first moving block (25), the second described moving block
(26) it is provided with the second convex portion for being collided with door seal (31) towards the side of door seal.
3. the safety door latch mechanism for preventing steam and microwave leakage according to claim 2, it is characterised in that:Described
Lock support (21) corresponding to be provided with the side wall of the first moving block (25) stretched into for first convex portion in interlock bracket first
Breach (27), is provided with the second breach (28) on side wall of the interlock bracket (21) corresponding to the second moving block (26), described
The second convex portion stretch out in the second breach (28) outward.
4. the safety door latch mechanism for preventing steam and microwave leakage according to claim 1, it is characterised in that:Described door
Lock (33) is provided with for the door latch (33) in the door body (32) of door component in the door seal (31) of the door component
The through hole for passing through.
5. the safety door latch mechanism for preventing steam and microwave leakage according to claim 1, it is characterised in that:Described door
Locking device (1) includes door lock fixed mount (11), gate stop (12) and extension spring (13), and the gate stop (12) is rotatably arranged at described
On door lock fixed mount (11), the front end of gate stop (12) has the hook portion (121) interlocked with the door latch (33), gate stop (12)
Rear end is connected with the extension spring (13), and the pulling force that the extension spring (13) is produced to gate stop (12) has prevention door latch (33)
From the trend that gate stop (12) departs from.
6. the safety door latch mechanism for preventing steam and microwave leakage according to claim 5, it is characterised in that:Described
Vertically arranged front limit axle (14) and rear limit shaft (15) is fixed with door lock fixed mount (11), on described gate stop (12)
The bar hole (122) and the stopper slot (123) with arc notch of horizontal distribution are formed with, described front limit axle (14) is located at institute
In the bar hole (122) stated, described rear limit shaft (15) is formed with described stopper slot (123) and is slidably matched.
7. the safety door latch mechanism for preventing steam and microwave leakage according to any claim in claim 1 to 6, its
It is characterised by:The two bottom sides of the door component (3) are respectively provided with a door hinge (4).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201510272830.4A CN104879799B (en) | 2015-05-26 | 2015-05-26 | A kind of safety door latch mechanism for preventing steam and microwave leakage |
Applications Claiming Priority (1)
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CN201510272830.4A CN104879799B (en) | 2015-05-26 | 2015-05-26 | A kind of safety door latch mechanism for preventing steam and microwave leakage |
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CN104879799A CN104879799A (en) | 2015-09-02 |
CN104879799B true CN104879799B (en) | 2017-06-16 |
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CN201510272830.4A Active CN104879799B (en) | 2015-05-26 | 2015-05-26 | A kind of safety door latch mechanism for preventing steam and microwave leakage |
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Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107514186A (en) * | 2017-10-15 | 2017-12-26 | 佛山市锐毅马达制造有限公司 | A kind of automatic door lock |
CN110416006A (en) * | 2018-04-28 | 2019-11-05 | 宁波方太厨具有限公司 | A kind of door interlocking mechanism |
CN109452871B (en) * | 2019-01-23 | 2024-06-14 | 杭州老板电器股份有限公司 | Locking structure of electric steamer door body and electric steamer |
CN110856299B (en) * | 2019-09-26 | 2022-03-11 | 广东格兰仕集团有限公司 | Cooking appliance and door body thereof |
CN111023181B (en) * | 2019-11-01 | 2021-11-30 | 广东格兰仕集团有限公司 | Cooking appliance and door body thereof |
CN114809823A (en) * | 2022-04-29 | 2022-07-29 | 无锡锐祺通讯技术有限公司 | Electricity changing method of anti-theft electricity changing cabinet |
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CN1299065C (en) * | 2002-07-12 | 2007-02-07 | 乐金电子(天津)电器有限公司 | Latch lock unit of microwave oven |
KR100531372B1 (en) * | 2003-03-19 | 2005-11-28 | 엘지전자 주식회사 | Latch & latchboard in microwave |
CN100572927C (en) * | 2005-06-27 | 2009-12-23 | 乐金电子(天津)电器有限公司 | Interlocking device for microwave oven |
CN1904486A (en) * | 2005-07-29 | 2007-01-31 | 乐金电子(天津)电器有限公司 | Interlocking structure of microwave oven door |
CN200986246Y (en) * | 2006-12-02 | 2007-12-05 | 广东格兰仕集团有限公司 | Interlock mechanism of microwave oven door |
DE102007035218A1 (en) * | 2007-07-25 | 2009-01-29 | Keba Ag | Electrically automated unlocking lock, especially for locker-like storage systems |
JP5403790B2 (en) * | 2009-02-06 | 2014-01-29 | パナソニック株式会社 | High frequency heating device |
CN202350123U (en) * | 2011-10-31 | 2012-07-25 | 浙江安德电器有限公司 | Interlocking device of microwave oven door |
CN103134091B (en) * | 2011-12-05 | 2016-06-29 | 乐金电子(天津)电器有限公司 | The interlock of microwave oven |
CN104196363B (en) * | 2014-08-22 | 2016-05-18 | 宁波方太厨具有限公司 | A kind of gate interlock structure |
CN204100322U (en) * | 2014-09-26 | 2015-01-14 | 广东美的厨房电器制造有限公司 | Micro-wave oven |
CN204678417U (en) * | 2015-05-26 | 2015-09-30 | 宁波方太厨具有限公司 | A kind of safety door latch mechanism preventing steam and microwave leakage |
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Denomination of invention: A safety door lock mechanism to prevent steam and microwave leakage Effective date of registration: 20230721 Granted publication date: 20170616 Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd. Registration number: Y2023980049312 |