CN108661455A - A kind of dish-washing machine automatic door lock and dish-washing machine - Google Patents
A kind of dish-washing machine automatic door lock and dish-washing machine Download PDFInfo
- Publication number
- CN108661455A CN108661455A CN201710196816.XA CN201710196816A CN108661455A CN 108661455 A CN108661455 A CN 108661455A CN 201710196816 A CN201710196816 A CN 201710196816A CN 108661455 A CN108661455 A CN 108661455A
- Authority
- CN
- China
- Prior art keywords
- rack
- dish
- washing machine
- lock
- tapered end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B65/00—Locks or fastenings for special use
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4251—Details of the casing
- A47L15/4257—Details of the loading door
- A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
The present invention relates to a kind of dish-washing machine automatic door lock and dish-washing machines, including the automatic tapered end being set on internal cavity of bowl washer and the lock being arranged in door body, the automatic tapered end includes rack and tapered end, setting limited position mechanism, relieving mechanism and ejecting mechanism in the rack, the position-limit mechanism works normally to limit ejecting mechanism and relieving mechanism, the ejecting mechanism can drive relieving mechanism to open the tapered end, and the ejecting mechanism is additionally operable to push door body to realize that door body is detached with liner.By driving relieving mechanism movement, ejecting mechanism that relieving mechanism is driven to open tapered end for limiting ejecting mechanism position-limit mechanism in the present invention, and then can realize to cooperate between each mechanism and automatically open dish-washing machine door lock, make dish-washing machine that can meet using less heat in the drying process and dries requirement.The automatic door lock provided in the present invention simultaneously is simple in structure, is readily disassembled repair.
Description
Technical field
The present invention relates to dish-washing machine technical field more particularly to a kind of dish-washing machine automatic door locks and dish-washing machine.
Background technology
Existing dish-washing machine in washing drying process, need by dish-washing machine door body release after the hot steam in liner compared with
It is discharged soon on the outside of dish-washing machine, improves the index of aridity of tableware.The less heat of application just meets drying and requires in the drying process, and because
This saves complete machine energy.Dish-washing machine door body is pushed open automatically in order to realize, occurs automatic door lock in the prior art, this kind of door
Push door body automatically open function can be realized by locking, but push the door open body mechanism and retaining mechanism in door lock in the prior art
Therebetween it being independently arranged, cooperation relation is not present, any of which mechanism, which goes wrong, does not all interfere with the operation of other mechanism,
And this kind of automatic door lock structure is also complex.
Due to pushing the door open, collaborative work relationship is not present with retaining mechanism in body mechanism, and then a wherein mechanism is caused event occur
An other mechanism makes user that can not find that the automatic door lock breaks down and influences using effect still in working condition after barrier.
Therefore, a kind of dish-washing machine automatic door lock how is proposed, it is complicated to solve automatic door lock in the prior art, and
It cannot cooperate between each mechanism of automatic door lock, be those skilled in the art's technical issues that need to address.
Invention content
It is an object of the invention to propose a kind of dish-washing machine automatic door lock, automatic door lock structure in the prior art can be solved
Complexity, and the problem of cannot cooperate between each mechanism of automatic door lock.For this purpose, the present invention uses following technical side
Case：
A kind of dish-washing machine automatic door lock is provided, including the automatic tapered end being set on internal cavity of bowl washer and setting are in door body
On lock, the automatic tapered end includes rack and tapered end, setting limited position mechanism, relieving mechanism and is pushed away in the rack
Go out mechanism, to limit ejecting mechanism and relieving mechanism normal work, the ejecting mechanism can drive and release the position-limit mechanism
Laying mechanism opens the tapered end, and the ejecting mechanism is additionally operable to push door body to realize that door body is detached with liner.
By driving relieving mechanism movement, ejecting mechanism drive to release for limiting ejecting mechanism position-limit mechanism in the present invention
Laying mechanism opens the tapered end, and then can realize to cooperate between each mechanism and automatically open dish-washing machine door lock, makes
Dish-washing machine can meet dry requirement using less heat in the drying process.The automatic door lock structure letter provided in the present invention simultaneously
It is single, it is readily disassembled repair.
Preferably, the relieving mechanism includes the press mechanism being arranged in rack, gear, the press mechanism and institute
It states gear coaxial arrangement and the press mechanism can rotate with the gear and push or discharge tapered end.
The purpose that press mechanism is arranged is in order to which tapered end to be closed, and tapered end is arranged according to lever principle in rack, tapered end
Non-closed end can be such that closed end is closed in the case where being pressed, for that will be locked in the enclosure space of tapered end formation,
Press mechanism rising simultaneously can open tapered end, and the dish-washing machine door lock is made to be opened.
Preferably, the ejecting mechanism includes the first push rod, the rack engaged with gear, the second push rod, the rack
One end is connect with first push rod, and the other end is connect with second push rod；First push rod is connected with the rack
One end pass through the rack, and first push rod pass through the rack part be arranged with the first recovery mechanism.
Preferably, under the tapered end includes the upper tapered end being fixed on the rack and is rotatably arranged in rack
Tapered end, one end top of the lower lock head far from lock is provided with the press mechanism, and the lower lock head is far from the lock
One end be additionally provided with the second recovery mechanism.
The purpose that rack is arranged is that the first push rod pushes push rod and rack under the action of the first recovery mechanism, in turn
It can be rotated with moving gear, since gear rotation can drive the shaft rotation of carrier gear dynamic, and then press mechanism also can be with axis one
Rotation is played, press mechanism rotation then can be such that the pressure suffered by tapered end is gradually reduced, can will be locked under the action of the second recovery mechanism
Head is opened.The second push rod opens door body simultaneously, and then can realize the purpose that dish-washing machine door body is automatically switched on.
Preferably, the position-limit mechanism includes the limited block being arranged on rack side wall, across the rack and is located at
For the limited block close to the lock pin of door body side, one end that the lock pin does not extend into rack is connected with push-pull mechanism, described
Lock pin is for limiting the rack movement.
Position-limit mechanism specifically includes limited block and lock pin, also defines lock pin across rack and is located at limited block
Close to the side of door body, this kind of structure can be such that door lock is not limited when opened by lock pin, while can also ensure that door
Body will not be acted on by the first recovery mechanism and open door body easily in a closed condition.
Preferably, first recovery mechanism is spring, second recovery mechanism is torsional spring；The one end connects
Connect the lower lock head, other end connection frame.
Preferably, the press mechanism is cam, the cam is coaxial with the gear, and the cam, gear can
Rotation is fixed in the rack.
Cam is used for top pressure lower lock head, and then lower lock head or lower pressure lock can be discharged during gear rotates
Head, this kind of structure is relatively simple, while can be worked at the same time with relieving mechanism, makes to cooperate between each mechanism, due to
This kind of structure is mechanical structure rather than electric control structure, and then there is no the actions of a certain mechanical structure to lag in use
And the problem of causing door lock that cannot be opened.
Preferably, the push-pull mechanism is electromagnet, the lock pin can be adsorbed and then discharged by the push-pull mechanism
The ejecting mechanism.
Setting ejecting mechanism can make guarantee lock pin play position-limiting action in the operating condition, make to push away in off working state
Go out mechanism normal work, does not interfere with the work of other component.
Preferably, the push-pull mechanism is cylinder, the lock pin does not extend into one end of the rack and the cylinder
Cylinder rod connection.
Setting ejecting mechanism to cylinder can be cost-effective, can be realized as lock pin it is not necessary that ejecting mechanism is especially arranged
Limit and relieving mechanism normal work.
A kind of dish-washing machine, including dish-washing machine automatic door lock described above.
Dish-washing machine provided by the invention can automatically open door body when washing the dishes drying program, while can be taking human as by door
Body is closed, and when the automatic door lock breaks down, user can be made to find in time, solves failure in time, ensures that dish-washing machine is normal
Work.
Description of the drawings
Fig. 1 is the structural schematic diagram of dish-washing machine automatic door lock provided by the invention；
Fig. 2 is the structural schematic diagram that rack is not arranged for dish-washing machine automatic door lock provided by the invention；
Fig. 3 is the vertical view of dish-washing machine automatic door lock provided by the invention；
Fig. 4 is the structural schematic diagram of the lower lock head of dish-washing machine automatic door lock provided by the invention.
In figure：
1, it latches；2, rack；3, press mechanism；4, gear；5, the first push rod；6, rack；7, the second push rod；8, it locks
Head；9, lower lock head；91, work department；92, press section；93, variant part；94, rotation hole；10, the first recovery mechanism；11, second is extensive
It answers a pager's call structure；12, limited block；13, lock pin；14, push-pull mechanism；15, rotation axis.
Specific implementation mode
In order to make those skilled in the art more fully understand technical scheme of the present invention, below in conjunction with the accompanying drawings and by specific
Embodiment is come the technical solution that further illustrates the present invention.
A kind of dish-washing machine automatic door lock is provided in the present embodiment, can realize the structure collaboration work between automatic door lock
Make, when any of which component breaks down, door lock cannot automatically open.As shown in Figure 1, the automatic door lock includes being set to wash
Automatic tapered end on bowl machine liner and the lock 1 that is arranged in door body, wherein automatic tapered end can be by door in drying program
Body automatically opens, and automatic tapered end includes rack 2 and tapered end, and limited position mechanism, relieving mechanism and kickoff mechanism is arranged in rack 2
Structure, position-limit mechanism can then drive machine for releasing for limiting ejecting mechanism and relieving mechanism normal work when ejecting mechanism work
Structure opens tapered end, while ejecting mechanism is additionally operable to push door body to realize that door body is detached with liner.
Above-mentioned relieving mechanism includes the press mechanism 3 being arranged in rack 2, gear 4, and press mechanism 3 is coaxially set with gear 4
Set and press mechanism 3 can with gear 4 rotate push or release tapered end, as shown in Figs. 1-3, in the present embodiment press mechanism 3 with
Gear 4 is arranged in rotation axis 15 simultaneously, and wherein 15 both ends of rotation axis are spindle rotationally arranged in rack 2.
Wherein, rack 6, the second push rod 7 that above-mentioned ejecting mechanism includes the first push rod 5, engaged with gear 4,6 one end of rack
It is connect with the first push rod 5, the other end is connect with the second push rod 7；One end that first push rod 5 is connected with rack 6 passes through rack 2,
And first push rod 5 pass through rack 2 part be arranged with the first recovery mechanism 10.First push rod 5 and the first recovery mechanism 10 coordinate
Ejecting mechanism is integrally released, when the first push rod 5 is pushed by the first recovery mechanism 10, rack 6 is moved also with the first push rod 5
It is dynamic, and rotated with the movement of rack 6 with 6 meshed gears 4 of rack, since gear 4 and press mechanism 3 are arranged at rotation
On axis 15, and then press mechanism 3 is rotated together also with rotation axis 15 to discharge tapered end.It should be noted that tapered end is locked in locking
When button, press mechanism 3 is the state for pressing tapered end, and for tapered end in opening state, press mechanism 3 is then in the shape of non-pushed tapered end
State.
Tapered end includes the upper tapered end 8 being fixed in rack 2 and the lower lock head 9 being rotatably arranged in rack 2；Such as figure
Shown in 2, wherein upper tapered end 8 is fixed in rack 2, and one end top of the lower lock head 9 far from lock 1 is provided with lower press
Structure 3, and the one end of lower lock head 9 far from lock 1 is additionally provided with the second recovery mechanism 11.Second recovery mechanism 11 is torsional spring, the torsion
Spring one end connects lower lock head 9, and other end connection frame 2, the connection in the present embodiment between torsional spring and other component is fixation
Connection.Press mechanism 3 is in the present embodiment cam, and cam is coaxial with gear 4, and cam, gear 4 are rotatably fixed on rack
On 2.Torsional spring is in elastic deformation to dish-washing machine door body in the off state, when press mechanism 3 discharges lower lock head 9, torsional spring
It can be deformed upon under the action of restoring force, and then lower lock head 9 can be driven to downwardly turn over, played tapered end 8 and divide with lower lock head 9
From purpose.
As shown in figure 4, wherein lower lock head 9 specifically includes the work department 91 coordinated with upper tapered end 8, is pressed down the pressing of mechanism 3
Press section 92 and connect the variant part 93 of work department 91 and press section 92, wherein variant part 93 can work in relieving mechanism
It is artificial under state that lock 1 is bonded from upper tapered end 8 with work department 91 in the space formed, and then dish-washing machine can be realized non-
Also the automatic door lock can be opened under working condition.Wherein the material of variant part 93 be elastic material, can also be rubber or
Spring.Press section 92 is provided with rotation hole 94 close to one end of variant part, and press section is spindle rotationally arranged in rack 2, specifically
Be to be connected by axis pin, while axis pin and rack 2 are integrally formed；In the present embodiment not to 93 concrete structure of variant part or material
It is limited, as long as the artificial expected results (opening the door) for firmly opening dish washing machine door can be realized.
As shown in Fig. 2, position-limit mechanism includes the limited block 12 being arranged on 6 side wall of rack, passes through rack 2 and positioned at limit
For block 12 close to the lock pin 13 of door body side, one end that lock pin 13 does not extend into rack 2 is connected with push-pull mechanism 14, lock pin 13
It is moved for limiting rack 6.It should be noted that lock pin 13 close to the side of limited block 12 and limited block 12 close to locking
The side of pin 13 is bevel edge structure, either it is considered that limited block 12 and lock pin 13 are trapezium structure or wedge shape knot
Structure, this kind of structure can make one for closing dish-washing machine door body time limit position block 12 and lock pin 13 slide and be staggered, need to illustrate
Limited block 12 is nonrigid material with 13 material of lock pin, can be ensured in this way, 12 prism of limited block is oblique with lock pin 13
Side can make limited block 12 slip over lock pin 13 when contacting.
Above-mentioned push-pull mechanism 14 is electromagnet, and lock pin 13 can be adsorbed by push-pull mechanism 14 and then discharge ejecting mechanism.When
When electromagnet obtains electric, can adsorb lock pin 13 makes limited block 12 smoothly be slided with rack 6.It is pushed and pulled in certain other embodiment
Mechanism 14 can also be cylinder, and lock pin 13 does not extend into one end of rack 2 and the cylinder rod of cylinder connects.The telescopic band of cylinder rod
Dynamic lock pin 13 works.
Above-mentioned dish-washing machine automatic door lock use process is as follows：
By push-pull mechanism be electromagnet for, push-pull mechanism obtain it is electric after, lock pin 13 is adsorbed, so make lock pin 13 to
Side movement far from rack 2, the limited block 12 contacted at this time with lock pin 13 is due to suffered by the axial direction in the first push rod 5
Resistance disappear, the first recovery mechanism 10 restores deformation at this time, drives the first push rod 5, rack 6, the second push rod to door body direction
Mobile, since rack and pinion engages, gear rotation band moving cam rotates, due to the second recovery mechanism being connect with lower lock head 9
11 are in deformation state, and cam, which is gradually reduced the lower pressure of lower lock head 9, promotes the second recovery mechanism 11 that can restore deformation, band
The press section 92 of dynamic lower lock head 9 moves up, and work department 91 is made to be detached with upper tapered end 8, and lock 1 is arranged in door body, and second pushes away
Bar 7 pushes door body that lock 1 can be driven to be detached with tapered end, and dish-washing machine door lock automatically opens at this time.
When user manually closes door lock, the second push rod 7 makes rack move again by promotion, and gear 4 is also therewith at this time
Rotation makes cam rotate, and the press section 92 of lower lock head is pressed again, press section 92 can be made to rotate down at this time；Due to locking
The side that pin 13 is in contact with limited block 12 is prism, and then sliding both can be made to be staggered, make limited block 12 again by
Lock pin 13 limits.The first recovery mechanism 10 and the second recovery mechanism 11 are in deformed state at this time, at this time dish-washing machine door lock
It is closed.
A kind of dish-washing machine is additionally provided in the present embodiment, which includes the dish-washing machine automatically-controlled door provided in the present embodiment
Lock.
This kind of dish-washing machine can automatically open door body when washing the dishes drying program, while artificially close door body, when changing
When automatic door lock breaks down, user can be made to find in time, solve failure in time, ensure dish-washing machine normal work.
Note that the above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The industry
Technical staff it should be appreciated that the present invention is not limited to the embodiments described above, described in the above embodiment and specification
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also have various change and
It improves, these changes and improvements all fall within the protetion scope of the claimed invention, and claimed range of the invention is by appended
Claims and its equivalent thereof.
Claims (10)
1. a kind of dish-washing machine automatic door lock, which is characterized in that including automatic tapered end and the setting being set on internal cavity of bowl washer
Lock (1) in door body, the automatic tapered end include rack (2) and tapered end, and position restrainer is provided in the rack (2)
Structure, relieving mechanism and ejecting mechanism, the position-limit mechanism are described to push away to limit ejecting mechanism and relieving mechanism normal work
Going out mechanism can drive relieving mechanism to open the tapered end, the ejecting mechanism be additionally operable to by door body push with realize door body with
Liner detaches.
2. dish-washing machine automatic door lock according to claim 1, which is characterized in that the relieving mechanism includes being arranged in rack
(2) press mechanism (3), gear (4) on, the press mechanism (3) is coaxially disposed with the gear (4) and the press mechanism
(3) it can be rotated with the gear (4) and push or discharge tapered end.
3. dish-washing machine automatic door lock according to claim 2, which is characterized in that the ejecting mechanism includes the first push rod
(5), rack (6), the second push rod (7) engaged with gear, described rack (6) one end is connect with first push rod (5), another
End is connect with second push rod (7)；One end that first push rod (5) is connected with the rack (6) passes through the rack
(2), and first push rod (5) passes through the part of the rack (2) to be arranged with the first recovery mechanism (10).
4. dish-washing machine automatic door lock according to claim 3, which is characterized in that the tapered end includes being fixed at rack
(2) upper tapered end (8) on and the lower lock head (9) being rotatably arranged in rack (2), the lower lock head (9) is far from lock (1)
One end top is provided with the press mechanism (3), and the one end of the lower lock head (9) far from the lock (1) is additionally provided with the
Two recovery mechanisms (11).
5. dish-washing machine automatic door lock according to claim 4, which is characterized in that the position-limit mechanism includes being arranged in rack
(6) limited block on side wall (12), the lock pin for passing through the rack (2) and being located at the close door body side of the limited block (12)
(13), one end that the lock pin (13) does not extend into rack (2) is connected with push-pull mechanism (14), and the lock pin (13) is for limiting
It is mobile to make the rack (6).
6. dish-washing machine automatic door lock according to claim 5, which is characterized in that first recovery mechanism (10) is bullet
Spring, second recovery mechanism (11) are torsional spring；The one end connects the lower lock head (9), other end connection frame
(2)。
7. according to claim 2-6 any one of them dish-washing machine automatic door locks, which is characterized in that the press mechanism (3) is
Cam, the cam is coaxial with the gear (4), and the cam, gear (4) are rotatably fixed in the rack (2).
8. dish-washing machine automatic door lock according to claim 5, which is characterized in that the push-pull mechanism (14) is electromagnet,
The lock pin (13) can be adsorbed by the push-pull mechanism (14) and then discharge the ejecting mechanism.
9. dish-washing machine automatic door lock according to claim 5, which is characterized in that the push-pull mechanism (14) is cylinder, institute
It states lock pin (13) and does not extend into one end of the rack (2) and connect with the cylinder rod of the cylinder.
10. a kind of dish-washing machine, which is characterized in that including such as claim 1-9 any one of them dish-washing machine automatic door lock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196816.XA CN108661455B (en) | 2017-03-29 | 2017-03-29 | Automatic door lock of dish washing machine and dish washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196816.XA CN108661455B (en) | 2017-03-29 | 2017-03-29 | Automatic door lock of dish washing machine and dish washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661455A true CN108661455A (en) | 2018-10-16 |
| CN108661455B CN108661455B (en) | 2021-05-25 |
Family
ID=63786057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710196816.XA Active CN108661455B (en) | 2017-03-29 | 2017-03-29 | Automatic door lock of dish washing machine and dish washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661455B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552561A (en) * | 2019-10-11 | 2019-12-10 | 无锡市东舟船舶设备股份有限公司 | fire prevention A60 sliding door push rod connects release |
| CN110946538A (en) * | 2019-12-04 | 2020-04-03 | 佛山市顺德区美的洗涤电器制造有限公司 | Door opener and dish washing machine |
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| AU6717600A (en) * | 1999-09-03 | 2001-04-10 | T And P S.P.A. | System for reducing the water hardness and control methods thereof |
| CN201810102U (en) * | 2010-09-30 | 2011-04-27 | 宁波永发集团有限公司 | Safe capable of automatically opening and closing door |
| EP2436864A1 (en) * | 2011-10-26 | 2012-04-04 | V-Zug AG | Automatic door closure for a domestic appliance |
| CN202489910U (en) * | 2012-01-09 | 2012-10-17 | 海尔集团公司 | Door lock unit and dish washer with same |
| CN205012801U (en) * | 2015-09-25 | 2016-02-03 | 广东格兰仕集团有限公司 | Automatic door lock of dish washer |
| CN106246013A (en) * | 2015-06-11 | 2016-12-21 | 麦格纳覆盖件有限公司 | Latch assembly, mechanical lock relieving mechanism and the method for either on or off breech lock |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU6717600A (en) * | 1999-09-03 | 2001-04-10 | T And P S.P.A. | System for reducing the water hardness and control methods thereof |
| CN201810102U (en) * | 2010-09-30 | 2011-04-27 | 宁波永发集团有限公司 | Safe capable of automatically opening and closing door |
| EP2436864A1 (en) * | 2011-10-26 | 2012-04-04 | V-Zug AG | Automatic door closure for a domestic appliance |
| CN202489910U (en) * | 2012-01-09 | 2012-10-17 | 海尔集团公司 | Door lock unit and dish washer with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552561A (en) * | 2019-10-11 | 2019-12-10 | 无锡市东舟船舶设备股份有限公司 | fire prevention A60 sliding door push rod connects release |
| CN110552561B (en) * | 2019-10-11 | 2024-04-05 | 无锡市东舟船舶设备股份有限公司 | Fire-proof A60 sliding door push rod connection release device |
| CN110946538A (en) * | 2019-12-04 | 2020-04-03 | 佛山市顺德区美的洗涤电器制造有限公司 | Door opener and dish washing machine |
| CN110946538B (en) * | 2019-12-04 | 2021-07-27 | 佛山市顺德区美的洗涤电器制造有限公司 | Door opener and dish washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108661455B (en) | 2021-05-25 |
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