CN107595225A - A kind of on-off structure of water basin dish-washing machine casing door closure - Google Patents

A kind of on-off structure of water basin dish-washing machine casing door closure Download PDF

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Publication number
CN107595225A
CN107595225A CN201710935804.4A CN201710935804A CN107595225A CN 107595225 A CN107595225 A CN 107595225A CN 201710935804 A CN201710935804 A CN 201710935804A CN 107595225 A CN107595225 A CN 107595225A
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China
Prior art keywords
door closure
push rod
swivel nut
washing machine
lifting
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Granted
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CN201710935804.4A
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Chinese (zh)
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CN107595225B (en
Inventor
王永勇
陈强飞
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Ningbo Gold Insults Cooking Apparatus Co Ltd
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Ningbo Gold Insults Cooking Apparatus Co Ltd
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Priority to CN201710935804.4A priority Critical patent/CN107595225B/en
Publication of CN107595225A publication Critical patent/CN107595225A/en
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Publication of CN107595225B publication Critical patent/CN107595225B/en
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Abstract

The invention discloses a kind of on-off structure of water basin dish-washing machine casing door closure,Include water trough body and door closure,Door closure is rotatablely arranged in water trough body,Water trough body is provided with the control device for being used for driving door closure to open and close,Water trough body is provided with support,Control device includes motor,Lift swivel nut,Lifting screw and push rod,Motor and lifting swivel nut drive connection,Lifting screw is connected through a screw thread with lifting swivel nut,Push rod bottom is fixedly connected at the top of lifting screw,Lifting screw is provided with limited block,Block is provided with support,The side of block is provided with the first stop surface with limited block one end counter stopper,The opposite side of block is provided with the second stop surface with the other end counter stopper of limited block,The top of push rod is provided with push rod head,Spring bolt mechanism is provided with door closure,The spring bolt mechanism is provided with the avoidance gap coordinated with push rod head.There is the present invention easy to operate, safe to use, door closure to close the characteristics of tight.

Description

A kind of on-off structure of water basin dish-washing machine casing door closure
Technical field
The present invention relates to dish-washing machine technical field, more particularly to a kind of on-off structure of water basin dish-washing machine casing door closure.
Background technology
Dish-washing machine is a kind of foul for being adhered to cold water or hot water jet in dishes to remove to dishes and cleans bowl The device of dish.Dishes is placed in the dishes frame in dish washing cupboard, in general dish-washing machine includes the pump and shower nozzle of jet cleaning water, Produce heater of hot water etc..Such dish-washing machine usually requires itself independent shell and independent part, therefore typically Dish-washing machine volume it is all larger, be not suitable for that some are populous, the use of the less family of per-capita housing, thus Many families, the use of dish-washing machine is nor very universal.In order to save space, expand applicable scope, occurred many The dishwasher designs of water tank type, i.e., existing tank is adapted as dish-washing machine, directly using tank as scrubbing space, existing water Groove dish-washing machine sets handle generally on door closure, to open dish-washing machine by shaking hands, so causes dish-washing machine overall not attractive in appearance enough, And the moment that door closure is opened, the vapours in dish-washing machine may scald user, cause security incident,
Chinese patent(Application number 201410851802.3)Disclose a kind of body structure of water tank cleaner, including tank sheet Body and rear end and the cover plate of water trough body rotation connection, in addition to the drive device that the driving cover plate opens or closes, The drive device includes being arranged on motor in the side wall of the water trough body, by the gear of the motor-driven rotation, with And the transmission bar for being driven and being moved in vertical direction certain limit by the gear, it is driven top and the phase of the cover plate of bar Side is answered to be slidably matched, the transmission bar includes for the tooth-strip part with the engaged gears and is located at the rack respectively The first partes glabra above portion and the second partes glabra below the tooth-strip part.Cleaning machine can be caused in cleaning procedure knot Shu Hou, cover plate can be rotated automatically relative to water trough body.But the cover plate of this dish-washing machine is when closed, relies solely on cover plate Self gravitation realizes the closing of cover plate, because cover plate periphery is embedded with seal washer, it may appear that be not closed completely real situation, thus Generally require user and press a lower cover again to close again tightly, it is more inconvenient to result in use.
The content of the invention
In view of the shortcomings of the prior art and defect, there is provided a kind of on-off structure of water basin dish-washing machine casing door closure, can from Dynamic control door closure action, and door closure is closed tightly.
To achieve the above object, the present invention provides following technical scheme.
A kind of on-off structure of water basin dish-washing machine casing door closure, includes water trough body and door closure, door closure is rotationally set It is placed in water trough body, water trough body is provided with the control device for being used for driving door closure to open and close, and water trough body is provided with support, controls Device processed includes motor, lifting swivel nut, lifting screw and push rod, and motor is risen with lifting swivel nut drive connection with driving Drop swivel nut to rotate, lifting screw is connected through a screw thread with lifting swivel nut, and push rod bottom is fixedly connected at the top of lifting screw, lifting Screw rod is provided with limited block, and limited block is set in arcuation, and block is provided with support, and the side of block is provided with and limited block one end First stop surface of counter stopper, the opposite side of block are provided with the second stop surface with the other end counter stopper of limited block, top The top of bar is provided with push rod head, and spring bolt mechanism is provided with door closure, and the spring bolt mechanism is provided with the avoidance coordinated with push rod head Gap;When limited block and the first stop surface offset, push rod head is alignd with avoiding gap, and push rod head is driven through push rod Gap is avoided so that door closure to be jacked up upwards;When limited block and the second stop surface offset, push rod head is with avoiding clearance dislocation, push rod Head pulls spring bolt mechanism under the driving of push rod, and door closure drop-down is fastened.
Further, motor is connected by transmission mechanism and lifting swivel nut, and transmission mechanism includes power transmission shaft, the The output axis connection of one bevel gear and the second bevel gear, power transmission shaft one end and motor, the power transmission shaft other end are fixedly connected with First bevel gear, lifting swivel nut bottom are fixedly connected with the second bevel gear being meshed with the first bevel gear.
Further, the output shaft of motor and the lifting concentric setting of swivel nut, the output shaft of motor and lifting Swivel nut is fixedly connected.
Further, cradle top is provided with transverse slat, and transverse slat is provided with through hole, is provided with to be sheathed on outside push rod in through hole and uses With the guiding swivel nut being oriented to push rod, it is provided with transverse slat to the nut of fixed guide swivel nut.
Further, the first travel switch and the second travel switch coordinated respectively with limited block is additionally provided with support, the One stroke switch, the second travel switch are connected with motor control signal respectively.
Further, push rod head is provided with induced magnet, and door closure is provided with the magnetic inductor being engaged with induced magnet.
Further, spring bolt mechanism includes the first dead bolt and the second dead bolt being oppositely arranged, the first dead bolt and the second dead bolt Between formed and avoid gap, be additionally provided with the first spring and second spring on door closure, the first spring one end offsets with the first dead bolt, the The one spring other end offsets with door closure, and second spring one end offsets with the second dead bolt, and the second spring other end offsets with door closure.
Further, the first dead bolt and the second dead bolt upper end are respectively equipped with ramp, and push rod head is provided with matches somebody with somebody with ramp The lower inclined plane of conjunction.
Further, door closure includes interior door closure, door body and face glass.
Further, inside door is covered provided with the sealing ring coordinated with water trough body.
Beneficial effects of the present invention are:When door closure needs to open, motor rotates forward the present invention so that limited block and the When one stop surface offsets, push rod head is alignd with avoiding gap, and push rod head is driven through avoiding gap with by door closure push rod Jack up upwards so that door closure is opened into certain angle, consequently facilitating door closure is opened, it is easy to operate, moreover it is possible to ensure user security.When When door closure needs to close, induced magnet and magnetic inductor form UNICOM's signal, and control signal inverts motor, limited block with When second stop surface offsets, push rod head pulls spring bolt mechanism with avoiding clearance dislocation, push rod head under the driving of push rod, and by door Lid drop-down is fastened.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the decomposition texture schematic diagram of the present invention.
Fig. 3 is the door closure decomposition texture schematic diagram of the present invention.
Fig. 4 is enlarged diagram at A in Fig. 3.
Fig. 5 is inventive drive means overall structure diagram.
Fig. 6 is inventive drive means decomposition texture schematic diagram.
Fig. 7 is the push rod structure schematic diagram of the present invention.
Fig. 8 is the lifting screw bushing structure schematic diagram of the present invention.
Fig. 9 is structural representation when the door closure of the present invention is opened.
Figure 10 is enlarged diagram at B in Fig. 9.
Figure 11 is structural representation when the door closure of the present invention is closed.
Figure 12 is another embodiment of the present invention structural representation.
In figure, 1. water trough bodies;2. door closure;3. motor;4. block;5. lift swivel nut;6. lifting screw;It is 7. spacing Block;8. push rod;9. support;10. through hole;11. power transmission shaft;12. the first bevel gear;13. the second bevel gear;14. it is oriented to swivel nut; 15. nut;16. transverse slat;17. the first travel switch;18. the second travel switch;19. induced magnet;20. magnetic inductor;21. lack Mouthful;22. jump ring;23. the first dead bolt;24. the second dead bolt;25. push rod head;26. ramp;27. lower inclined plane;28. the first spring; 29. second spring;Door closure in 30.;31. door body;32. face glass;33. sealing ring;34. fixed seat;35. avoid gap.
Embodiment
With reference to accompanying drawing to the further explaination of the present invention.
Referring to a kind of on-off structure of water basin dish-washing machine casing door closure shown in Fig. 1 to Figure 11, include the He of water trough body 1 Door closure 2, door closure 2 are rotatablely arranged in water trough body 1, and door closure 2 includes interior door closure 30, door body 31 and face glass 32, interior Door closure 30, door body 31 and face glass 32, which are fixedly connected sequentially, forms door closure 2, and interior door closure 30 is provided with to be coordinated with water trough body 1 Sealing ring 33, to ensure that dish-washing machine sealing is good, door closure 2 is articulated with water trough body 1 by door fixed seat 34 so that door Lid 2 can overturn opening.Water trough body 1 is provided with the control device for being used for driving door closure 2 to open and close, and water trough body 1 is provided with branch Frame 9, control device include motor 3, lifting swivel nut 5, lifting screw 6 and push rod 8, motor 3 by transmission mechanism with Lifting swivel nut 5 is connected to drive lifting swivel nut 5 to rotate, and transmission mechanism includes power transmission shaft 11, the first bevel gear 12 and second Bevel gear 13, the one end of power transmission shaft 11 and the output axis connection of motor 3, the other end of power transmission shaft 11 are fixedly connected with the first umbrella tooth Wheel 12, lifting swivel nut 5 bottom are fixedly connected with the second bevel gear 13 being meshed with the first bevel gear 12.
Lifting screw 6 is connected through a screw thread with lifting swivel nut 5, and the bottom of push rod 8 is fixedly connected on the top of lifting screw 6, rises Drop screw rod 6 is provided with limited block 7, and limited block 7 is set in arcuation, and block 4 is provided with support 9, and the side of block 4 is provided with and limit First stop surface of the position one end counter stopper of block 7, the opposite side of block 4 are provided with the with the other end counter stopper of limited block 7 Two stop surfaces, the top of push rod 8 are provided with push rod head 25, and spring bolt mechanism is provided with door closure 2, and the spring bolt mechanism is provided with and top The avoidance gap 35 that head 25 coordinates;Spring bolt mechanism includes the first dead bolt 23 and the second dead bolt 24 being oppositely arranged, the first dead bolt 23 and second form between dead bolt 24 and avoid gap 35, and the first dead bolt 23 and the upper end of the second dead bolt 24 are respectively equipped with ramp 26, Push rod head 25 is provided with the lower inclined plane 27 coordinated with ramp 26, and the first spring 28 and second spring 29 are additionally provided with door closure 2, the The one end of one spring 28 offsets with the first dead bolt 23, and the other end of the first spring 28 offsets with door closure 2, one end of second spring 29 and second Dead bolt 24 offsets, and the other end of second spring 29 offsets with door closure 2.When the stop surface of limited block 7 and first offsets, push rod head 25 with Avoid gap 35 to align, push rod head 25 is driven through avoiding gap 35 so that door closure 2 to be jacked up upwards push rod 8;When spacing When the stop surface of block 7 and second offsets, push rod head 25 misplaces with avoiding gap 35, and push rod head 25 pulls lock under the driving of push rod 8 Tongue mechanism, and the drop-down of door closure 2 is fastened.
When door closure 2 of the present invention needs to open, motor 3 rotates forward, and motor 3 drives the first umbrella by power transmission shaft 11 Gear 12 is rotated, and the first bevel gear 12 is engaged with the second bevel gear 13 so as to drive lifting swivel nut 5 to rotate, and lifting swivel nut 5 rotates Lifting screw 6 is driven to rotate, lifting screw 6, which rotates, drives limited block 7 to rotate, when the stop surface of limited block 7 and first offsets, So as to by lifting screw 6 it is along the circumferential direction spacing, due to lifting screw 6 by screw thread with lift swivel nut 5 be connected, now lift Swivel nut 5 is rotated further can be so that lifting screw 6 vertically rises, and lifting screw 6, which rises, drives push rod 8 to rise, now Push rod head 25 is alignd with avoiding gap 35, and push rod head 25 is driven through avoiding gap 35 so that door closure 2 to be pushed up upwards push rod 8 Rising, door closure 2 opens certain angle, consequently facilitating door closure 2 is opened, it is easy to operate, moreover it is possible to ensure user security.Door closure 2 and top Groove is additionally provided with the side wall that bar 8 coordinates, is easy to door closure 2 manually to open door closure 2 after opening certain angle.
When door closure 2 needs to close, induced magnet forms UNICOM's signal with magnetic inductor, and control signal makes motor 3 Reversion, drive lifting swivel nut 5 rotate, and lifting swivel nut 5, which rotates, drives lifting screw 6 to rotate, and the rotation of lifting screw 6 drives spacing Block 7 rotates, when the stop surface of limited block 7 and second offsets, so as to which lifting screw 6 is along the circumferential direction spacing, due to lifting spiral shell Bar 6 is connected by screw thread with lifting swivel nut 5, is now lifted under swivel nut 5 is rotated further and can cause lifting screw 6 vertically Drop is connected with lifting swivel nut 5, and lifting screw 6, which declines, drives push rod 8 to decline, and now push rod head 25 misplaces with avoiding gap 35, pushes up Head 25 pulls spring bolt mechanism under the driving of push rod 8, and the drop-down of door closure 2 is fastened.Due to the first dead bolt 23 and the second dead bolt 24 upper ends are respectively equipped with ramp 26, and push rod head 25 is provided with the lower inclined plane 27 coordinated with ramp 26, and push rod head 25 is declining When coordinated by ramp 26 and lower inclined plane 27 and make the first dead bolt 23 overcome the elastic force of the first spring 28 to bounce back, the second dead bolt 24 The elastic force of second spring 29 is overcome to bounce back, the avoidance gap 35 between the first dead bolt 23 and the second dead bolt 24 becomes big, push rod head 25 can be moved down by avoiding gap 35.
The first travel switch 17 coordinated with limited block 7 is additionally provided with support 9 and the second travel switch 18, the first stroke are opened Close 17 and be located at the upper end of limited block 7, the second travel switch 18 is located at the lower end of limited block 7, and the first travel switch 17, the second stroke are opened Close 18 to be connected with the control signal of motor 3 respectively, push rod head 25 is provided with induced magnet 19, and door closure 2 is provided with sensing magnetic The magnetic inductor 20 that iron 19 is engaged.When lifting screw 6, which drives limited block 7 to rise to, to be in contact with the first travel switch 17, First travel switch 17 causes motor 3 to stop operating, and now door closure 2 is in opening, when needing to close door closure 2, Because push rod 8 is still in the state of stretching, door closure 2 first closed to push rod 8 and offseted by user, now induced magnet 19 and magnetic induction Device 20 coordinates, and the triggering reversion of motor 3 drives door closure 2 to close, when lifting screw 6 drives limited block 7 to drop to and the second row When Cheng Kaiguan 18 is in contact, the second travel switch 18 causes motor 3 to stop operating, and now door closure 2 is closed, energy It is enough to realize that door closure 2 opens and closes automatically, it is easy to operate, and also motor 3 can voluntarily stop operating after the opening and closing of door closure 2, Save energy.
Further, the top of support 9 is provided with transverse slat 16, and transverse slat 16 is provided with through hole 10, is provided with through hole 10 and is oriented to swivel nut 14, the nut 15 to fixed guide swivel nut 14 is provided with transverse slat 16, swivel nut 14 is oriented to and push rod 8 is being risen or fallen During play guide effect, ensure that push rod 8 steadily moves.Lifting swivel nut 5 is connected one end with lifting screw 6 and is provided with breach 21, lifting swivel nut 5 is provided with breach 21 and is also arranged with jump ring 22.By setting breach 21, it is easy to lifting screw 6 to be plugged in lifting In swivel nut 5, jump ring 22 cause lifting swivel nut 5 and lifting screw 6 between connect it is firm.
Shown in Figure 12, another embodiment of the present invention, its agent structure is identical with a upper embodiment, implements with upper one Example difference is, the output shaft of motor 3 and lifting 5 concentric setting of swivel nut, the output shaft of motor 3 directly with Lifting swivel nut 5 is connected to drive lifting swivel nut 5 to rotate.
Described above is only the better embodiment of the present invention, therefore all constructions according to described in present patent application scope, The equivalent change or modification that feature and principle are done, is included in the range of present patent application.

Claims (10)

1. a kind of on-off structure of water basin dish-washing machine casing door closure, includes water trough body(1)And door closure(2), door closure(2)It can turn Water trough body is arranged at dynamicly(1)On, water trough body(1)It is provided with and is used to drive door closure(2)The control device of keying, its feature It is:Water trough body(1)It is provided with support(9), control device includes motor(3), lifting swivel nut(5), lifting screw(6) And push rod(8), motor(3)With lifting swivel nut(5)It is connected to drive lifting swivel nut(5)Rotate, lifting screw(6)With Lift swivel nut(5)It is connected through a screw thread, push rod(8)Bottom is fixedly connected on lifting screw(6)Top, lifting screw(6)On set Limited location block(7), limited block(7)Set in arcuation, support(9)On be provided with block(4), block(4)Side be provided with and limit Position block(7)First stop surface of one end counter stopper, block(4)Opposite side be provided with and limited block(7)Other end backstop match somebody with somebody The second stop surface closed, push rod(8)Top be provided with push rod head(25), door closure(2)Inside it is provided with spring bolt mechanism, the dead bolt Mechanism is provided with and push rod head(25)The avoidance gap of cooperation(35);Work as limited block(7)When being offseted with the first stop surface, push rod head (25)With avoiding gap(35)Alignment, push rod head(25)In push rod(8)Be driven through avoid gap(35)And by door closure(2) Jack up upwards;Work as limited block(7)When being offseted with the second stop surface, push rod head(25)With avoiding gap(35)Dislocation, push rod head (25)In push rod(8)Driving under pull spring bolt mechanism, by door closure(2)Drop-down is fastened.
A kind of 2. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Motor (3)Pass through drive mechanism and lifting swivel nut(5)Drive connection, drive mechanism include power transmission shaft(11), the first bevel gear(12)With Second bevel gear(13), power transmission shaft(11)One end and motor(3)Output axis connection, power transmission shaft(11)The other end, which is fixed, to be connected It is connected to the first bevel gear(12), lift swivel nut(5)Bottom is fixedly connected with and the first bevel gear(12)The second umbrella tooth being meshed Wheel(13).
A kind of 3. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Motor (3)Output shaft with lifting swivel nut(5)Concentric setting, motor(3)Output shaft with lifting swivel nut(5)It is fixedly connected.
A kind of 4. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Support(9) Top is provided with transverse slat(16), transverse slat(16)It is provided with through hole(10), through hole(10)Inside it is provided with and is sheathed on push rod(8)It is outside to To push rod(8)The guiding swivel nut of guiding(14), transverse slat(16)On be provided with to fixed guide swivel nut(14)Nut(15).
A kind of 5. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Support(9) On be additionally provided with respectively with limited block(7)The first travel switch coordinated(17)With the second travel switch(18), the first travel switch (17), the second travel switch(18)Respectively with motor(3)Control signal connects.
A kind of 6. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Push rod head (25)It is provided with induced magnet(19), door closure(2)It is provided with and induced magnet(19)The magnetic inductor being engaged(20).
A kind of 7. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Spring bolt mechanism Including the first dead bolt being oppositely arranged(23)With the second dead bolt(24), the first dead bolt(23)With the second dead bolt(24)Between formed and keep away Allow gap(35), door closure(2)On be additionally provided with the first spring(28)And second spring(29), the first spring(28)One end and the first lock Tongue(23)Offset, the first spring(28)The other end and door closure(2)Offset, second spring(29)One end and the second dead bolt(24)Phase Support, second spring(29)The other end and door closure(2)Offset.
A kind of 8. on-off structure of water basin dish-washing machine casing door closure according to claim 7, it is characterised in that:First dead bolt (23)With the second dead bolt(24)Upper end is respectively equipped with ramp(26), push rod head(25)It is provided with and ramp(26)Under coordinating Inclined-plane(27).
A kind of 9. on-off structure of water basin dish-washing machine casing door closure according to claim 1, it is characterised in that:Door closure(2) Including interior door closure(30), door body 31 and face glass(32).
A kind of 10. on-off structure of water basin dish-washing machine casing door closure according to claim 9, it is characterised in that:Interior door closure (30)It is provided with and water trough body(1)The sealing ring of cooperation(33).
CN201710935804.4A 2017-10-10 2017-10-10 Opening and closing structure of box door cover of water tank dish washer Active CN107595225B (en)

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Cited By (7)

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CN108209812A (en) * 2018-02-06 2018-06-29 宁波美高厨具有限公司 Water basin dish-washing machine panel with gushing arm
CN108888222A (en) * 2018-08-31 2018-11-27 宁波安佳卫厨电器有限公司 A kind of automatic door opening dish-washing machine
CN109230533A (en) * 2018-09-03 2019-01-18 郑州福耀玻璃有限公司 A kind of vehicle glass uninterruptedly dries curved line
CN109222809A (en) * 2018-09-20 2019-01-18 珠海格力电器股份有限公司 Basin subassembly and basin formula dish washer
CN112360238A (en) * 2020-10-30 2021-02-12 宁波方太厨具有限公司 Door lock structure and cleaning machine with same
CN112796589A (en) * 2019-11-14 2021-05-14 宁波方太厨具有限公司 Door lock structure, cleaning machine applying door lock structure and door locking method
CN107595225B (en) * 2017-10-10 2023-12-26 宁波金凌厨房设备有限公司 Opening and closing structure of box door cover of water tank dish washer

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107595225B (en) * 2017-10-10 2023-12-26 宁波金凌厨房设备有限公司 Opening and closing structure of box door cover of water tank dish washer
CN108209812A (en) * 2018-02-06 2018-06-29 宁波美高厨具有限公司 Water basin dish-washing machine panel with gushing arm
CN108209812B (en) * 2018-02-06 2023-12-29 宁波美高厨具有限公司 Basin dish washer panel with spray arm
CN108888222A (en) * 2018-08-31 2018-11-27 宁波安佳卫厨电器有限公司 A kind of automatic door opening dish-washing machine
CN109230533A (en) * 2018-09-03 2019-01-18 郑州福耀玻璃有限公司 A kind of vehicle glass uninterruptedly dries curved line
CN109230533B (en) * 2018-09-03 2024-03-19 郑州福耀玻璃有限公司 Uninterrupted baking and bending line for automobile glass
CN109222809A (en) * 2018-09-20 2019-01-18 珠海格力电器股份有限公司 Basin subassembly and basin formula dish washer
CN112796589A (en) * 2019-11-14 2021-05-14 宁波方太厨具有限公司 Door lock structure, cleaning machine applying door lock structure and door locking method
CN112796589B (en) * 2019-11-14 2022-08-05 宁波方太厨具有限公司 Door lock structure, cleaning machine applying door lock structure and door locking method
CN112360238A (en) * 2020-10-30 2021-02-12 宁波方太厨具有限公司 Door lock structure and cleaning machine with same
CN112360238B (en) * 2020-10-30 2021-10-29 宁波方太厨具有限公司 Door lock structure and cleaning machine with same

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